Method for making man-made rock core target

The invention relates to a manufacturing method of an artificial rock core barn used for evaluation articles of an oil field oil gas water well perforator, which comprises fives procedures of screening quartz sand, manufacturing a standard test rock core, preparing an aluminium phosphate cementing agent, manufacturing the rock core by pressing and drying and sintering. The manufacturing method is easy to be implanted, the one-time success rate of quartz sand matching of different particles can be improved when a large size rock core is manufactured by the method, and the artificial rock core barn which can meet the on-site requirement and can be used in the evaluation on the perforator in high pressure seepage flow performance test is manufactured.

Oral solid preparation containing hydroxy propyl cellulose

The invention relates to an oral solid preparation for raising dissolution rate of clopidogrel in water and a pH4.5 phosphate buffer by the use of hydroxy propyl cellulose. The solid preparation contains, by weight, 100 parts of clopidogrel bisulfate and 1-50 parts of hydroxy propyl cellulose with viscosity of 2-4000cp.

Recombinant eukaryotic expression vector pVAX-LAMP-CCHFV-NP, construction method and application

The invention belongs to the technical field of biomedicine, and particularly relates to a recombinant eukaryotic expression vector pVAX-LAMP-CCHFV-NP, a construction method and application, and a gene for synthesizing structural protein NP of a CCHFV strain, and the gene is inserted into a pVAX-LAMP plasmid vector by adopting a homologous recombination method to construct the pVAX-LAMP-CCHFV-NP recombinant eukaryotic expression vector. According to the invention, on the basis of complete antigens of eukaryotic expression vectors pVAX1 and NP, the eukaryotic expression vector pVAX-LAMP-CCHFV-NP is constructed, and the recombinant CCHFV DNA vaccine with a good immune effect is obtained.

Method for measuring position of radioactive guide instrument type double sleeve

The invention discloses a method for measuring the position of radioactive guide instrument type double sleeve for dynamically testing oil field oil and water well oil pipe transmission type perforations, which is realized by an aboveground control system and an underground test system. A measuring device consists of a large sleeve, a small sleeve, a well-measuring cable, a gyroscope, a double gamma instrument and a radioactive guide instrument, wherein the gyroscope, the double gamma instrument and the radioactive guide instrument are connected with each other through the well-measuring cable. The measuring method comprises the steps of: firstly, changing radioactive isotope source of the double gamma instrument to be out of the instrument from the inner part of the lower end of the double gamma instrument; filling the radioactive isotope source in a self-made guide instrument to be sealed; connecting the guide instrument with a ground control system through the well-measuring cable; connecting ...

Papermaking process tobacco sheet loosening device

The invention provides a papermaking process tobacco sheet loosening device which comprises a horizontal loosening mechanism and a vertical loosening mechanism, wherein the vertical loosening mechanism is in a vertical state, and is connected with the horizontal loosening mechanism together; the horizontal loosening mechanism and the vertical loosening mechanism have the same structure, and both comprise brackets, loosening rollers and transmission mechanisms; a set of loosening rollers which are arranged in parallel and are provided with loosening nails is installed on each bracket, and eachloosening roller is connected with each transmission mechanism. When the papermaking process tobacco sheet loosening device is used, a whole box of papermaking process tobacco sheets are placed on the horizontal loosening mechanism, and can be fast and completely loosened under the actions of scratching and overturning of the loosening rollers on the horizontal loosening mechanism and the vertical loosening ...

Method and device capable of improving outlet tobacco moisture uniformity of burley tobacco parching machine

The invention discloses a method and a device capable of improving outlet tobacco moisture uniformity of a burley tobacco parching machine. The device comprises a water tube and a steam tube which are parallel, wherein a guide tube is crossly spanned on the water tube and the steam tube at a certain distance, and a spray nozzle is arranged on the cross guide tube; the spray nozzle is an adjustable spray nozzle. The method comprises the following steps: estimating humidifying capacity of a moisture regaining region of the parching machine; estimating parameters of the spray nozzle on the original installation position of the moisture regaining region of the parching machine, wherein the parameters include a spraying angle and a spraying distance; re-selecting a moisture regaining spray nozzle according to the data. The parching machine is re-designed and re-selected on the spray nozzle of the moisture regaining region; the used spray nozzle is adjustable, so that the atomizing effect of ...

Method preventing abnormal charging of blade charging machine

The invention discloses a method preventing abnormal charging of a blade charging machine. The method comprises the steps that data collection is achieved through a PLC; collected pipeline pressure is compared with a theoretical value in a pipeline pressure characteristic curve, wherein the theoretical value is obtained by inquiring a table; if the pipeline pressure is smaller than or larger than the theoretical value, warning information is sent; collected feed liquid flow quantity in a charging pipe is compared with theoretical flow quantity, wherein the theoretical flow quantity is obtained by inquiring a corresponding table; if the feed liquid flow quantity is lower than the theoretical flow quantity, warning information is sent; collected atomization steam pressure is compared with a technological requirement value, and warning information is sent if the atomization steam pressure is smaller than the technological requirement value; after production is finished, the average running ...

Lifting belt connecting mechanism of lifting appliance for lifting main engine of semi-direct-driven fan

The invention relates to a lifting belt connecting mechanism of a semi-direct-drive fan main machine lifting appliance, which comprises symmetrically arranged first lifting belts, a connecting assembly is arranged between the two first lifting belts, connecting pairs are arranged at the two ends of the connecting assembly, first connecting rods are arranged on the connecting pairs, and second connecting rods are arranged on the first connecting rods. The bottoms of the two connecting pairs are both connected with second hanging belts in a hinged mode, and a fan body is arranged between the bottom ends of the two second hanging belts in a hinged mode. The connecting assembly comprises a fixed seat, connecting seats are hinged to the two ends of the fixed seat, and tightening mechanisms are arranged in the connecting seats; the problems that when the lifting belts are connected through an existing connecting mechanism, the distance between the two lifting belts cannot be adjusted, so that ...

Method for reducing pulverization rate of leaf shred bin type feeding machine for preparing tobacco shreds

The invention provides a method for reducing the pulverization rate of a leaf shred bin type feeding machine for preparing tobacco shreds, which comprises the following steps: (1) operating a bottom belt of the leaf shred bin type feeding machine only under the condition that a lifting belt is operated and tobacco shreds are not detected by a putty photoelectric tube; (2) reducing the delay time of the putty photoelectric tube from 1 second to 50 milliseconds; (3) reducing the detection range of a diffuse reflection photoelectric tube on the lower part of a cloth running end; (4) artificially lifting materials by the bottom belt only under the condition that the lifting belt is operated and the tobacco shreds are not detected by the putty photoelectric tube; (5) reducing the height of the putty photoelectric tube, and reducing the material height of the leaf shreds in a triangular area in front of the lifting belt and a material storage bin; and (6)increasing the delay time control of 1 ...

Method for saving energy by controlling sequence of production line of making tobacco into thread cigarette

The invention relates to a method for saving energy by controlling sequence of production line of making tobacco into thread cigarette, comprising the following steps: 1) after the system has the condition for automatically running, pressing the starting pushbutton only to start the tumbling cylinder to run, wherein the subsequent devices of the tumbling cylinder (such as a feeder, a conveyer belt II, a conveyer belt I and a vibrating groove device ) are in the state of waiting for operation; 2) adding the condition control to belt weigher material accumulation in sequence control; 3) in the process of transforming the condition control to the sequence control, adding a transformation control time delay and then removing the condition control signal till the condition control is transformed to the sequence control to eliminate the material stoppage or material blockage caused by stopping operation of the former device in the transforming process; 4) when the accumulation amount of leaf ...

Special lifting appliance for lifting main engine of semi-direct-driven fan

The invention discloses a special lifting appliance for lifting a semi-direct-drive fan main engine, and relates to the technical field of lifting appliances, the special lifting appliance comprises a linear beam, one end of the linear beam is fixedly connected with a first connecting pair, and the other end of the linear beam is in bolted connection with a Y-shaped beam; the Y-shaped beam comprises a fixing rod, a fixing sleeve is nested in the side face of the fixing rod, rotating arms are rotationally connected to the two sides of the fixing sleeve, and a second connecting pair is fixedly connected to the ends, away from the fixing sleeve, of the rotating arms; the two groups of second connecting pairs are connected to one side of the Y-shaped beam, and are matched with the first connecting pair on one side of the linear beam to form three connecting points, so that the overall stability of the lifting appliance can be improved, the lifting appliance consisting of the linear beam and ...

Adapter for pneumatic speed-reducing tube-launched unmanned aerial vehicle

The invention relates to the technical field of unmanned aerial vehicle launching, and discloses a pneumatic speed reduction pipe launching unmanned aerial vehicle adapter which comprises an unmanned aerial vehicle push rod, a cable adapter pipe, a pneumatic speed reduction assembly, an adapter piston and a cable hole spring cover assembly. The end face of one side of the adapter piston is provided with an unmanned aerial vehicle push rod, a cable hole communicating with the inner cavity and a cable adapter pipe arranged in a matched mode, and the end face of the other side of the adapter piston is open and forms an inner cavity. A pneumatic speed reduction assembly is movably arranged on the surface of the adapter piston and used for being separated from the unmanned aerial vehicle adapter after the unmanned aerial vehicle is launched; a cable hole spring cover assembly is further arranged on the end face of the adapter piston and located on one side of the cable hole, and the cable hole ...

Ejection device with volume-adjustable expansion chamber

The invention discloses a catapult device with an adjustable volume of an expansion chamber, which comprises a base support, a launch canister and a catapult controller, the launch canister is erected on the base support, the expansion chamber is located at the tail of the launch canister, an orientator is located at the head of the launch canister, and a combat load is arranged in the orientator; a spring A, a movable bottom plate and a limiting device are arranged in the expansion chamber; one end of the spring A is connected with the inner bottom surface of the closed end of the expansion chamber, and the other end is connected with the A surface of the movable bottom plate; the limiting device is used for limiting the movable bottom plate; a cavity is formed between the surface B of the movable bottom plate and the bottom surface of the combat load; the ejection controller is used for controlling the ejection power source to generate a working medium, the working medium is released ...

Blasting type cave well completion technological method of coal layer gas well

Mouse specific lncRNA30928.1 and application thereof

The invention belongs to the field of treatment of immune diseases and infectious diseases, and particularly relates to a mouse specific lncRNA30928.1 and an application of the mouse specific lncRNA30928.1. The nucleotide sequence of the lncRNA30928.1 is as shown in SEQ ID NO. 1 (sequence identifier number 1). Experiments prove that in the HTNV infection process, the expression of mouse lncRNA30928.1 can be promoted to negatively regulate and control the expression of M1 related cell factors mainly comprising TNF-alpha; through overexpression of the mouse lncRNA30928.1, the inflammation level in a nude mouse with challenge can be reduced, and the survival rate of the mouse is increased.

Saccharin adefovir dipivoxil eutectic crystal form beta

The invention relates to a saccharin adefovir dipivoxil eutectic crystal form beta formed by combining saccharin with adefovir dipivoxil. Different from the powder X-ray diffraction, DSC, melting point and infrared spectroscopy of the disclosed saccharin adefovir dipivoxil eutectic crystal, the saccharin adefovir dipivoxil eutectic crystal form beta is a novel saccharin adefovir dipivoxil crystal form.

CCHFV tecVLP as well as preparation method and application thereof

The invention belongs to the technical field of biology, and particularly relates to a CCHFV tecVLP as well as a preparation method and application thereof. Microgenome plasmids with NanoLuc, helper plasmids capable of expressing an L gene, an M gene and an S gene and pCAGGS-T7 are respectively constructed through a pCAGGS vector, Huh7 cells are co-transfected, culture is performed for 2-3 days, cell culture supernatant is collected to obtain CCHFV tecVLP, cells and animals are infected with the CCHFV tecVLP, the CCHFV tecVLP can replace live viruses for vaccine evaluation and drug screening, the requirement for the biological safety level is low, and the CCHFV tecVLP has the advantages of being simple in preparation method, low in cost and good in application prospect. And a solid foundation is laid for wide development of research and development of CCHFV vaccines and drug screening, and the CCHFV vaccine can be finally used for prevention, control and treatment of CCHF.

Cross-border logistics packaging device

The invention belongs to the field of logistics packaging, particularly relates to a cross-border logistics packaging device, and provides the following scheme aiming at the problems that an existing packaging device cannot be adaptively adjusted according to the packaging size, packaging cartons cannot be automatically packaged conveniently, manual operation is needed when adhesive tape is pasted, and the packaging efficiency is low. The device comprises a packaging conveying table, a control back plate, a lifting control plate and a lifting assembly, the control back plate is fixedly installed on the packaging conveying table, the lifting control plate is slidably connected to one side of the control back plate, the lifting assembly is arranged on the control back plate, and the lifting assembly is connected with the lifting control plate; the device comprises two connecting seats, a winding roller, an unwinding roller and a control assembly. The packaging device can be adaptively adjusted ...

Sectional type oil conduit conveying composite gun perforation process

The invention relates to a segmented tubing conveyed compound perforation technique which adopts a multistage detonating mode, the ignition mode of a first stage at the upper part is the same to the normal ignition mode which can adopt the modes of tubing pressurization ignition, stick dropping ignition or oil jacket pressurization ignition and the like, the ignition modes of the secondary stages at the lower part can adopt pressure ignition, pressure delayed ignition, or stick dropping ignition and the like; and the connection relation of a perforation tube string is as follows: the bottom of an upper part perforator is connected with a lower hanging joint with double functions, the center of the joint is connected with a medium speed gunpowder grain with the function of delaying ignition, a sieve tube which releases pressure enough fast is arranged at the outside, the lower part of the sieve tube is connected with an interlayer perforator or a tubing, and the more lower part is a normal ...

Prefusion conformation glycoprotein hantavirus vaccine as well as preparation method and application thereof

The invention relates to the technical field of vaccine preparation, and particularly discloses a prefusion conformation glycoprotein hantavirus vaccine as well as a preparation method and application thereof. The hantavirus GPC antigen is modified through acid mutation, disulfide bonds with stable Gn-Gc and Gc tetramer structures are introduced between amino acids with mutually close Gn-Gc heterodimers and between amino acids with mutually close Gc tetramers, and the prefusion conformation antigen vaccine with stable expression is obtained. The HTNV GP antigen vaccine prepared by the invention is stronger in immunogenicity, and a novel vaccine capable of inducing a high-level neutralizing antibody is provided for prevention and treatment of hemorrhagic fever with renal syndrome.

Constant-pressure linear perfuming system with double closed tanks and control method

The invention discloses a constant-pressure linear perfuming system with double closed tanks. The constant-pressure linear perfuming system comprises the processes as follows: spices respectively enter a storage tank A and a storage tank B through an incoming control valve A1 and an incoming control valve B1; compressed air respectively enters the storage tank A and the storage tank B through a compressed air control valve A2 and a compressed air control valve B2; the storage tank A and the storage tank B are respectively connected with one end of a discharge control valve A5 and one end of a discharge control valve B5; the other ends of the discharge control valve A5 and the discharge control valve B5 are connected through a pipeline, sequentially pass through a flow meter, a linear control valve and a charging control valve C1, and are then connected with a roller. The constant-pressure linear perfuming system has the beneficial effects that the air subjected to pressure regulation and ...

Quality statistics-based parameter tuning method for cut stem drying fluidized bed

The invention discloses a quality statistics-based parameter tuning method for a cut stem drying fluidized bed. The method includes the steps of S100, acquiring temperature samples X1, X2 and X3 of areas of the cut stem drying fluidized bed; S110, optimizing the temperature of each area of the cut stem drying fluidized bed by central composite design in response to water content and filling value; S120, determining an optimal temperature of each area of the cut stem drying fluidized bed; S200, after determining the optimal temperatures, acquiring a cut stem flow sample X4 and cut stem residue sample X5 of the cut stem drying fluidized bed; S210, establishing a fitted curve of each of cut stem flow, cut stem residue and in-compartment negative pressure of the cut stem drying fluidized bed, and determining a numerical range of the in-compartment negative pressure of the cut stem drying fluidized bed; S220, encoding data of the in-compartment negative pressure of the cut stem drying fluidized ...

On-line detection device and method for cylinder wall temperature of cut-tobacco drier

The invention relates to an on-line detection device and method for the cylinder wall temperature of a cut-tobacco drier. The detection device comprises a cut-tobacco drier cylinder wall thin plate, a cut-tobacco drier outer wall, a wireless temperature measuring module, a wireless temperature recorder and a control system, wherein the cut-tobacco drier outer wall is arranged on the cut-tobacco drier cylinder wall thin plate; at least one wireless temperature sensor is arranged on the outer side of the cut-tobacco drier cylinder wall thin plate; the wireless temperature measuring module is used for receiving the signal of the wireless temperature sensor and mounted on the outer side of the cut-tobacco drier cylinder outer wall; the wireless temperature recorder is adapted to the wireless temperature measuring mould via a wireless network; and the control system is connected with the wireless temperature recorder and provided with a display screen. Through the arrangement of a plurality ...

Papermaking process tobacco sheet loosening device

The invention provides a papermaking process tobacco sheet loosening device which comprises a horizontal loosening mechanism and a vertical loosening mechanism, wherein the vertical loosening mechanism is in a vertical state, and is connected with the horizontal loosening mechanism together; the horizontal loosening mechanism and the vertical loosening mechanism have the same structure, and both comprise brackets, loosening rollers and transmission mechanisms; a set of loosening rollers which are arranged in parallel and are provided with loosening nails is installed on each bracket, and eachloosening roller is connected with each transmission mechanism. When the papermaking process tobacco sheet loosening device is used, a whole box of papermaking process tobacco sheets are placed on thehorizontal loosening mechanism, and can be fast and completely loosened under the actions of scratching and overturning of the loosening rollers on the horizontal loosening mechanism and the verticalloosening ...

Linear correction control method of perfuming precision error in tobacco processing

The present invention relates to a linear correction control method of perfuming precision error in tobacco processing, comprising the following steps: 1) a control system collects a tobacco shred instantaneous flow, a tobacco accumulated amount, a perfuming instantaneous flow and a perfuming accumulated amount of a belt conveyer scale in real time; 2) proportion different value for perfuming is calculated according to a perfuming setting proportion K1 and a real performing proportion K2, and a desired perfuming proportion correction value is calculated by multiplying the proportion different value with a proportion correction coefficient; 3) a perfuming control setting proportion K3 participating in the control is obtained by adding the perfuming setting proportion K1 and a perfuming proportion correction value; 4) limiting control is performed for the perfuming control setting proportion K3, wherein the limiting value is 120% to 80% of the perfuming setting proportion K1; 5) the tobacco ...

Method for preparing ZSM-5 molecular sieve from coal gangue

The invention relates to a method for preparing a ZSM-5 molecular sieve from coal gangue, which belongs to the field of high value-added utilization of coal gangue, and comprises the following steps: (1) crushing, grinding and screening a coal gangue raw material to obtain pretreated coal gangue; (2) mixing the pretreated coal gangue with NH4Cl, and roasting to obtain roasted coal gangue; (3) mixing the roasted coal gangue with a hydrochloric acid solution, and performing acid leaching to obtain an acid-leached solid; (4) mixing the acid leaching solid and sodium hydroxide solid, adding the mixture into a box type electric furnace, and performing alkali fusion to obtain an alkali fusion solid; (5) mixing the alkali fusion solid, a seed crystal and a template agent, regulating the pH value of the system, adding the mixture into a reaction kettle, and performing aging and hydrothermal crystallization to obtain a crystallized product; (6) adding a crystallization product into a box type electric ...

Tobacco leaf temperature anomaly prevention method for leaf feeders

The invention discloses a tobacco leaf temperature anomaly prevention method for leaf feeders. The method includes: 1, acquiring data by a PLC (programmable logic controller); 2, comparing acquired steam pressure to a process requirement; if the steam pressure does not reaches the process requirement, and sending out an alarm message; 3, comparing acquired adjusting steam flow to a theoretical flow; if the steam flow is lower than the standard flow, sending out an alarm message; 4, after one batch of production, counting average opening of adjusting valves; comparing the average opening to an ideal area; if opening distribution exceeds the ideal area, and sending out an alarm message; 5, calculating a total score; if deduction exceeds a set score; sending out an alarm message. The method has the advantages that the status of a temperature control system is monitored in real time, the whole temperature control system is assessed by means of feature curves of key parts and a health assessment ...

Method for making man-made rock core target

The invention relates to a manufacturing method of an artificial rock core barn used for evaluation articles of an oil field oil gas water well perforator, which comprises fives procedures of screening quartz sand, manufacturing a standard test rock core, preparing an aluminium phosphate cementing agent, manufacturing the rock core by pressing and drying and sintering. The manufacturing method iseasy to be implanted, the one-time success rate of quartz sand matching of different particles can be improved when a large size rock core is manufactured by the method, and the artificial rock core barn which can meet the on-site requirement and can be used in the evaluation on the perforator in high pressure seepage flow performance test is manufactured.

Hantavirus sample particle with CD40L and preparation method and application of hantavirus sample particle

The invention relates to a hantavirus sample particle with CD40L and a preparation method and application of the hantavirus sample particle. For a VLP composed of a plurality of proteins, a rhabdovirus for expressing each protein needs to be prepared on the basis of an insect cell expression system, insect cells are infected according to different proportions, the common infection rate needs to be explored through a lot of work, and the rhabdoviruses mixed in a product cause a certain trouble to later purification. On the basis of a mammal cell expression system, by establishing eukaryotic expression vectors and cotransfection dhfr-CHO cells, the hantavirus sample particle with CD40L is assembled. All components of the hantavirus sample particle can be expressed, the established eukaryotic expression vectors contain various screening marks, a cell strain stably expressing the hantavirus sample particle can be established through screening, large-scale production and preparation are facilitated ...

Automatic checking method for smoke box discharged from formulation library

The invention provides an automatic checking method for a smoke box discharged from a formulation library, which comprises the following steps: (1) scanning a bar code of the smoke box at an inlet of a gathering conveyor to acquire related information of the smoke box, recording the related information of the smoke box if a production order of the smoke box is the same as that of the prior smoke box, and guiding the smoke box to enter the gathering conveyor, otherwise, searching the detailed information of the formulation from the database of a formulation library, recording the information of the smoke box in a database of a management program, and guiding the smoke box to enter the gathering conveyor; (2), acquiring a production order which the production line produces and formulation number from a control program of the production line by the management program; and (3) scanning the bar code of the smoke box at an outlet of the gathering conveyor to acquire the information of the smoke ...

Method for improving analysis accuracy of process data of feeding machine

The invention discloses a method for improving the analysis accuracy of process data of a feeding machine. The method includes the following steps: a stack address pointer is calculated; PLC current time is inquired in real time, and data collecting time is obtained; data circulation in a data collecting mapping area is stored into a data collecting area in a data block in a stack mode; after the primary data collecting process is completed, the data in the data collecting area are transmitted into a data cache area at a time; the data in the data cache area are transmitted into a data output area, and an industrial personal computer is notified to receive the data; the industrial personal computer collects the data in the data output area in the PLC data block into data collecting variables; compiled data in a database temporarily-stored table are recovered to be in an original structural mode and written into the database storage table. By means of the method, changes in the feeding process ...

Automatic checking method for smoke box discharged from formulation library

The invention provides an automatic checking method for a smoke box discharged from a formulation library, which comprises the following steps: (1) scanning a bar code of the smoke box at an inlet of The invention provides an automatic checking method for a smoke box discharged from a formulation library, which comprises the following steps: (1) scanning a bar code of the smoke box at an inlet ofae box, recording the time information for smoke box entering the production line if the smoke box accords with the production requirement of the batch, discharging the smoke box, otherwise, waitingoke box, recording the time information for smoke box entering the production line if the smoke box accords with the production requirement of the batch, discharging the smoke box, otherwise, waitingfor manual check and processing. The method achieves automatic check of the smoke box discharged from the library, ensures accurate formulation, and improves efficiency.for manual check and processing. The ...

Zero distance calibration system and method for pulse Doppler radar

The invention relates to a zero distance calibration system and method for pulse Doppler radar. The calibration system comprises a circulator, a limiter, a low noise amplifier, isolators, a mixer, a delay line, an up-converter, a first amplifier, a second amplifier, a power divider and an antenna, wherein the circulator, the limiter, the first isolator, the low noise amplifier, the second isolator and the mixer which are sequentially connected in series constitute a reception channel; the delay line and impedance matching networks in front of and behind the delay line constitute a delay channel; the up-converter, the third isolator, the first amplifier, the fourth isolator, the second amplifier, the circulator and the antenna which are sequentially connected constitute a transmission channel; the delay channel is connected between the transmission channel and the reception channel, and electrical signals are converted into sound signals to be subjected to time delay propagation in sound ...

Method for filtering water of odor treatment spray water tank

The invention discloses a method for filtering water of an odor treatment spray water tank. The method comprises the steps of calculating a filter area of a DN50FIG-Y filter, and selecting a box-type filter which is applicable to the odor treatment spray tower water tank; dividing the sewage discharged from the spray tower water tank into two paths, filtering one path of sewage entering the DN50FIG-Y filter through a filter front stop valve, and filtering the other path of sewage entering the box-type filter through a water inlet stop valve of the box-type filter; generating 4bar spray water pressure by the filtered process water by utilizing a spray pump at a spray atomizing nozzle, filtering the sewage through a new box-type filter, and conveying the filtered water through the spray pump to a water spray position to be atomized so as to meet the sewage filter capacity requirement. The spray tower water tank is in a negative-pressure state in the working process, and the problem of water ...

Splashproof material pressure relief device under tobacco class equipment pressure -fired environment

The utility model discloses a splashproof material pressure relief device under tobacco class equipment pressure -fired environment, it has been solved the unable effective pressure release of cigarette maker and has produced the problem of peculiar smell, prevents that the material from piling up, and steam is in time got rid of in the assurance barrel, barrel internal and external pressure balance, stability, the homogeneity of export material moisture and temperature, effective filtration dust and peculiar smell prevent the secondary pollutant material, air quality in the cleaning shop, andits technical scheme is: including first frame, first frame both sides all set up the fastener, and second frame block sets up in the fastener, the second frame is embedded to be established filtering net cover and antiseized and attached the otter board, cross filtering net cover and antiseizedly attach the otter board and border on the setting.

Oil conduit conveying type gun perforation explosion-proof gun protection method

The invention relates to a tubing conveyed perforation anti-explosion gun protecting method. The method comprises the steps: in the oil gas water well tubing conveyed perforation operation process, a perforating gun is provided with a pressure releasing device consisting of a pressure releasing joint and a pressure releasing gun breech; and when the pressure in the perforating gun is increased suddenly, the pressure in the gun body is released fast by the pressure releasing device so that the pressure inside and outside the gun body is in a balanced state, thus rooting out gun explosion accidents and ensuring the normal running of perforation operation. The method is novel in design and easy to be implanted, has good effect, can be applied in all types of cased wells and is suitable for perforators of various specifications; and by utilizing the method, serious accidents of perforator explosion and the like can be effectively avoided in oil gas water well perforation operation process, ...

Special upper and lower double-track cross-beam-free special-shaped sliding door for tobacco feeding machine stock bin

The utility model discloses an upper and lower double-track cross-beam-free special-shaped sliding door special for a tobacco feeding machine stock bin. Wherein the two sliding doors are used for being installed on wallboards on the two sides and matched with the wallboards. Two sections of upper rails located on the same horizontal plane are installed on the outer side of the top of the wall plate, limiting devices are arranged on the two sections of upper rails, and upper idler wheels are installed on the inner side of the top of the sliding door and clamped into the upper rails on the top of the wall plate. And the bottom of the sliding door is also provided with a lower roller, and the lower roller slides along a lower rail arranged on the wall plate.

Technological process of making position gun perforation

The invention relates to a technological method for marking a located perforation. The technique for marking the located perforation comprises the steps that a mark is premade on the inner wall of the coupling of a short sleeve of a main casing which is close to a secondary casing; when perforating operation is carried out, the position of the secondary casing is accurately determined by adopting gyrostatic orientation and a visible light borehole television translocation technology; when perforating is carried out, a perforation tunnel is avoided from the secondary casing, thereby solving the problem of protecting perforating of the secondary casing. By adopting the method which is novel in design, easy to be implemented and reliable in working, the mutual alignment of the main casing and the secondary casing of steam injection thermal production wells can be accurately determined, the secondary casing is effectively protected from being damaged, and good options can be provided for production ...

Application of emodin in preparation of anti-Hantaan virus medicine

The invention belongs to the technical field of antiviral drugs, and particularly relates to application of emodin in preparation of an anti-hantaan virus drug, the in-vitro anti-hantaan virus concentration of the emodin is 25-100 [mu] M, the in-vivo anti-hantaan virus concentration of the emodin is 25-100 mg/kg, and it is found that the emodin can inhibit transcriptional translation of HTNV viruses and can be used for preparing anti-hantaan virus products.

Superfine mixed high gold wire and vacuum magnetron sputtering gold plating process and production equipment thereof

According to the superfine mixed high gold wire and the vacuum magnetron sputtering gold plating technology and production equipment thereof, in the metal bar production process, through secondary casting, gold, silver and palladium metal are mixed more evenly, grains can be refined by adding trace rare earth elements, the drawability of the wire can be improved, and the problems that in the market, gold, silver and palladium alloy wires are not prone to being damaged are solved. Gold and silver are not uniformly mixed, and the drawability is poor. According to the gold plating process, the product performance is more stable, subsequent production and processing are facilitated, and the production efficiency is improved; the surface of the mixed high gold wire is plated with gold by using a vacuum magnetron sputtering gold plating process, so that metal materials are saved, the product cost is reduced compared with pure gold wires, and environmental pollution is avoided; the performance ...

Portable shunting device suitable for gold bonding wire winding drum

The invention discloses a portable flow dividing device suitable for a gold bonding wire winding drum, relates to the technical field of gold bonding wire winding drum flow dividing, and provides the following scheme that the portable flow dividing device comprises a conveying belt, a driving mechanism and a reciprocating movement mechanism, the driving mechanism is installed at the top of the conveying belt, and the reciprocating movement mechanism is installed on one side of the driving mechanism; the device comprises a reciprocating motion mechanism, a driving mechanism, a transmission mechanism and a material channel selection mechanism, the driving mechanism drives the reciprocating motion mechanism to rotate, the transmission mechanism is installed on one side of the driving mechanism, the driving mechanism drives the transmission mechanism to rotate, the material channel selection mechanism is installed on one side of the reciprocating motion mechanism, and the material channel selection ...

Method for reducing pulverization rate of leaf shred bin type feeding machine for preparing tobacco shreds

The invention provides a method for reducing the pulverization rate of a leaf shred bin type feeding machine for preparing tobacco shreds, which comprises the following steps: (1) operating a bottom belt of the leaf shred bin type feeding machine only under the condition that a lifting belt is operated and tobacco shreds are not detected by a putty photoelectric tube; (2) reducing the delay time of the putty photoelectric tube from 1 second to 50 milliseconds; (3) reducing the detection range of a diffuse reflection photoelectric tube on the lower part of a cloth running end; (4) artificiallylifting materials by the bottom belt only under the condition that the lifting belt is operated and the tobacco shreds are not detected by the putty photoelectric tube; (5) reducing the height of theputty photoelectric tube, and reducing the material height of the leaf shreds in a triangular area in front of the lifting belt and a material storage bin; and (6)increasing the delay time control of1 second ...

Oil gas water well energy-gathering composite perforating process

The invention relates to a technique for shaped charge composite perforation in an oil or gas well. The technique for shaped charge composite perforation is as follows: built-in composite perforation and suspended composite perforation are used together, a connector and suspended powder are arranged at the lower part of the prior built-in composite perforator, a core barrel and igniting column combined ignition method is adopted for the suspended powder, and a pressure value is adjusted by adjusting the number of igniting columns; and during perforation in an oil well, the built-in composite perforator perforates a target layer first, and then the suspended powder is ignited to constantly load a formation to form secondary compression shock, so the length and the flow conductivity of a crack are improved. The technique for shaped charge composite perforation is easy in implementation and reliable in operation, has combined advantages of the built-in composite perforation and the suspended ...

Simple electric egg beater

The invention provides a simple electric egg beater which comprises a handle, a stirring head and a stirring rod. A motor, a wire and a battery are arranged inside the hollow handle, a switch is arranged on the outer surface of the handle, the tail end of the stirring head is fixed to the front end of the stirring rod, the tail end of the stirring rod extends into the handle and is connected with an end of the motor, and the motor and the battery are connected to the switch by the wire.

Caber type oil gas well perforating test technique

The invention relates to a technique for drop-bar perforation and test in an oil or gas well. The method is as follow: during tubing conveyed perforating operation and construction in an oil well or a gas well, a tester is arranged on a drop bar consisting of a fishing head, a damping device, an ignition device and a weight device, and goes into the well together with the drop bar, so as to acquire underground temperature and pressure data during perforation, that is, to acquire data as soon as the perforating gun is fired; the temperature pressure curve tested can reflect real time generation conditions of formation fluid in early period of perforation; and through analysis of the curve tested, underground conditions such as compactability and formation leakage can be qualitatively judged; and subsequent operation and construction schemes can be made accordingly. The technique is easy to implement, can acquire underground formation data and perforation at the same time, contributes to ...

Application of cholesterol and metabolism-related substances thereof in preparation of Hantavirus infection inhibition drugs

The invention belongs to the technical field of biological medicine, and particularly relates to application of cholesterol and metabolism-related substances thereof in preparation of drugs for inhibiting hantavirus infection, it is found that cholesterole-25-hydroxylase (CH25H) can effectively inhibit the replication of HTNV, meanwhile, the product 25-hydroxycholesterol (25HC) of the cholesterole-25-hydroxylase (CH25H) can also effectively inhibit the replication of HTNV, and the effect of inhibiting hantavirus infection is achieved. The statins for regulating and controlling cholesterol metabolism can effectively inhibit the replication of HTNV, the infection of HTNV can be well inhibited by overexpressing CH25H or applying chemically synthesized 25HC or statins, the safety is good, and the statins, the CH25H and the chemically synthesized 25HC can be used for preparing medicines for inhibiting hantavirus.