Device and method for sealing blast-furnace damping-down tuyere

The invention provides a device and method for sealing a blast-furnace damping-down tuyere. The device comprises a conveying mechanism and a smearing mechanism, wherein the conveying mechanism is used for conveying media for plugging the blast-furnace tuyere into the tuyere, and the smearing mechanism is movably arranged on the conveying mechanism and used for smearing the media conveyed by the conveying mechanism to fire clay at the front end of the blast-furnace tuyere at the position outside a blast furnace. The device is reasonable in design, simple in structure and easy to machine and operate, time and labor are saved, and the problem that the media such as grease for sealing are inconveniently conveyed to the position of the tuyere can be solved. According to the device and method, cracks generated on the clay are sealed and plugged with the grease, the sealing effect is good, and meanwhile tuyere opening operation during re-blowing is not influenced. Although the grease is semisolid ...

EPA industrial Ethernet and HART field bus interconnection method

The invention discloses a method for realizing interconnection communication among industry ether networks based on EPA protocol and heterogeneous networks of on-site bus network based on HART protocol through an intelligent gateway. The intelligent gateway comprises an ARM microprocessor and a memorizer, an EPA ether network communication module, an HART module, a power circuit and an auxiliary circuit; the EPA ether network communication module and the HART module are respectively connected with the ARM microprocessor and the memorizer; the ARM microprocessor and the memorizer are used for storing software modules such as EPA protocol stack, the HART main-site protocol stack and the EPA/HART protocol converting module, etc.; the EPA protocol and the HART protocol are mutually converted and connected with each other through the EPA protocol stack, HAPT main-site protocol stack and the EPA/HART protocol converting module. The method of the invention ensures that the EPA control systemcan ...

Blast furnace iron-making raw material and blast furnace iron-making method

The invention provides a high-aluminum low-magnesium blast furnace iron-making raw material and a method for high-aluminum low-magnesium blast furnace iron-making by using the high-aluminum low-magnesium blast furnace iron-making raw material. The high-aluminum low-magnesium blast furnace iron-making raw material consists of high-aluminum low-magnesium sintered ore, pellet ore and raw ore; the blast furnace material is free of magnesium-containing ore; the high-aluminum low-magnesium sintered ore is prepared from a mixture of high-aluminum low-magnesium iron ore powder and auxiliary sintering materials in a sintering way; the pellet ore is ordinary pellet ore; the raw ore is high-grade iron ore concentrate. In the blast furnace iron-making process, the high-aluminum low-magnesium sintered ore and the ordinary pellet ore together with reasonably added raw ore are adopted, and appropriate blast furnace operation mechanisms are selected, so that the coal gas flow can be reasonably distributed ...

Sodium-sulfur battery management unit

The invention discloses a sodium-sulfur battery management unit and relates to a battery control technology. The problem that no battery management unit for effectively controlling a state of a sodium-sulfur battery exists in the prior art is solved. The invention also discloses a sodium-sulfur battery capable of effectively controlling the state of the sodium-sulfur battery.

Method for sequentially recording events in distributed control system

The invention discloses a method for sequentially recording events in a distributed control system, and belongs to the technical field of distributed control systems. According to the method, an internal clock of the distributed control system is synchronized by a satellite clock of a global positioning system, phenomena that events recorded by a sequence of event recording system are omitted, and the sequence of event occurrence time recorded by the sequence of event recording system is disordered and the like are eliminated, relative time errors of the events of the sequence of event recording system are reduced, the capacity of the sequence of event recording system and real-time of acquiring and processing the events of the sequence of event recording system are improved, the accuracy of analyzing accidents by the distributed control system is further improved, and the field requirement of the distributed control system is met.

Method for implementing on-site controller based on EPA bridge

The invention relates to a method for realizing a field controller based on an EPA bridge. Data read-write commands and control commands which are transmitted to EPA field devices in a control area by an EPA master device in a system backbone network in an EPA distributed control network have the characteristic of nondeterminacy; and when messages comprising the commands arrive at the field controller based on the EPA bridge, the controller converts the messages into EPA nonperiodic messages and adds the EPA nonperiodic messages into a nonperiodic list for scheduling. The method guarantees that all the messages in the control area are scheduled, so as to effectively reduce the collision probability of the messages and guarantee high real-time property of the EPA network.

Fusion measurement method and system of ultrasonic flowmeter

The invention discloses a fusion measurement method and system of an ultrasonic flowmeter. The measurement method comprises the following steps that 1, data of an ultrasonic sensor are obtained, and filtering processing is conducted on the obtained data; step 2, abnormal value elimination is carried out on the filtered data through a Grubbs criterion; 3, calculating through a time difference method and a cross-correlation method to obtain two groups of time differences; and 4, fusing the two groups of time differences through a Kalman fusion algorithm to obtain a more accurate time difference as a measurement result. According to the fusion measurement method and system of the ultrasonic flowmeter, an analog measurement scheme and a digital measurement scheme are fused, and after the method and system are adopted, an instrument with high anti-interference capacity and high precision can be obtained.

Differential pressure type flowmeter multivariable fusion diagnosis method

The invention discloses a multivariable fusion diagnosis method for a differential pressure type flowmeter. The multivariable fusion diagnosis method comprises the steps of data acquisition, data preprocessing, basic credibility adjustment, feature data dimension reduction, historical database construction, MPCA model establishment, statistical control quantity and statistical control index comparison and the like. A plurality of flow measurement related variables are obtained by adopting a multi-parameter differential pressure type flow meter integrating a pressure/differential pressure sensor, a temperature sensor, a position sensor, a conductivity sensor and the like, information of the plurality of flow measurement variables is fused by adopting a D-S evidence theory, a PCA principal component analysis method and other data fusion technologies, a unified decision result is provided, and the flow measurement accuracy is improved. According to the method, the system judgment accuracy ...

Management system for sodium-sulfur battery DC circuit

The invention discloses a management system for a sodium-sulfur battery DC circuit, and relates to the technical field of battery control. The management system solves the problem that in the prior art, a system which can effectively manage a battery management unit of a sodium-sulfur battery and be in communication with an upper computer is lacking. Data of the battery management unit are acquired through a DC circuit management unit module of the sodium-sulfur battery, are processed and then are sent to an upper computer.

Wireless vision test device and method based on ZigBee

The invention relates to a wireless vision test device and method based on ZigBee, and is used for testing vision by a single tester. The device comprises a mobile phone test terminal, a ZigBee node, a ZigBee coordinator and a vision test PC machine, which are sequentially connected, wherein the mobile phone test terminal comprises a touch screen, a mobile phone processor and bluetooth, which are sequentially connected; the ZigBee node comprises a ZigBee processing module, and a bluetooth module, a ZigBee terminal module and a display screen which are respectively connected with the ZigBee processing module; the bluetooth module is connected with the bluetooth, and the ZigBee terminal module is connected with the ZigBee coordinator. Compared with the prior art, the device has the advantages of being convenient to use, easy to expand and update, great in preventive effect, low in energy consumption and the like.

EPA industrial Ethernet and HART field bus interconnection method

The invention discloses a method for realizing interconnection communication among industry ether networks based on EPA protocol and heterogeneous networks of on-site bus network based on HART protocol through an intelligent gateway. The intelligent gateway comprises an ARM microprocessor and a memorizer, an EPA ether network communication module, an HART module, a power circuit and an auxiliary circuit; the EPA ether network communication module and the HART module are respectively connected with the ARM microprocessor and the memorizer; the ARM microprocessor and the memorizer are used for storing software modules such as EPA protocol stack, the HART main-site protocol stack and the EPA/HART protocol converting module, etc.; the EPA protocol and the HART protocol are mutually converted and connected with each other through the EPA protocol stack, HAPT main-site protocol stack and the EPA/HART protocol converting module. The method of the invention ensures that the EPA control system can ...

Monitoring system for sodium-sulfur battery

The invention discloses a monitoring system for a sodium-sulfur battery, and belongs to the technical field of battery control. According to the monitoring system for the sodium-sulfur battery, a battery monitoring software module is in communication with a DC circuit management unit module, data in the DC circuit management unit module are set and configured through the battery monitoring software module and are displayed, and the battery monitoring software module is in communication with a power station monitoring system. The relevant data of the sodium-sulfur battery are acquired through the battery monitoring software module and are set, configured and displayed, so that the reliability and work efficiency of the system are effectively improved, and the popularization and application of the management system of the sodium-sulfur battery can be accelerated.

Functional security and information security fused temperature transmitter and operation method thereof

The invention discloses a functional security and information security fused temperature transmitter, which comprises a main control micro-control unit which is connected with a sampling module, an encryption storage module, a communication module and an output module. The invention further discloses an operation method of the temperature transmitter fusing the function safety and the information safety, and function safety tasks comprise RAM diagnosis, ROM diagnosis and fault diagnosis. The information security task comprises password protection, access control and security communication. The basic functions of the instrument are guaranteed, the function safety is guaranteed, the information safety protection capability is increased, the function safety technology and the information safety technology are deeply fused, the diagnosis capability of the instrument is improved, and the intelligent level and the reliability level of the instrument are improved.

Thermocouple and thermal resistance analog signal conditioning card of dispersive actuation system DAS

The invention relates to a thermocouple and thermal resistance analog signal conditioning card of a dispersive actuation system DAS. The thermocouple and thermal resistance analog signal conditioning card comprises an FPGA (field programmable gate array) processing module, analog signal conditioning cards, AD (analog-digital) sampling modules, an FRAM (ferroelectric random access memory) module, an RS485 communication module and a power circuit, wherein thermocouple/thermal resistance analog signals are respectively sent into the four isolation AD sampling modules for analog-digital conversion after being respectively converted into a voltage signal with 0-60mV and a resistance signal with 18.52-329.64 ohms through the four isolation analog signal conditioning cards, and digital signals are output; the digital signals enter the FPGA processing module; a cold-end compensation analog signal enters the single analog signal conditioning card and is converted into temperature engineering quantity ...

A method for realizing network recovery in loop network

The invention discloses a method for recovering networks in a ring network. Ethernet switch equipment enters a communication status after an initial configuration and precise time synchronization based on an IEEE 1588 protocol. Each equipment according to the configuration of the network sends out time-sharing equipment statement messages and link circuit checking messages. The link circuit checking messages are sent by a multicast address in two ways; if a port of equipment receives no link checking messages of a connected port after the time out, then a network trouble can be determined and link circuit alarm messages are sent by the multicast address in two ways for alarming. The rest equipments in the ring network after receiving the link circuit alarm message, then empty an FDB list and utilize a backup link circuit to restart path learning. By adopting the method of the invention, any communication link circuit failure in the ring network can be quickly detected and correspondingly ...

Intelligent valve positioning device based on EPA standard

The invention provides an intelligent valve positioning device based on an EPA standard, which comprises two parts: a communication card and a main control card, wherein the communication card realizes the communication of the EPA network, and the main control card realizes the valve position control of a regulation valve. The invention is characterized in that the communication card consists of a network transformer, an Ethernet controller, an ARM microprocessor chip, a FLASH memory and a power supply circuit, the main control card consists of an I/P converting unit, an MSP430 microprocessor, a monitoring panel and a potential device. The invention has the advantages that a fully digitized method is utilized for realizing the control on a pneumatic regulation valve, the digitized communication with a system, an instrument and a terminal can be realized in the industrial Ethernet through the EPA network, and the intelligent valve positioning device has strong anti-jamming capability and ...

Clock synchronization realization method for loop network

Function safety temperature transmitter

The utility model discloses a function safety temperature transmitter relates to the changer field, include: a singlechip, a processing circuit and a main AD that samples are connected, main sample AD with the singlechip is connected, still be connected with a DA module on the singlechip, the DA module is connected with a current output module, an analog switch and treatment circuit, a diagnosis AD concatenate the DA module with between the singlechip, diagnosis AD simultaneously with processing circuit connects, one takes the time window to open the watchdog connects between singlechip and the current output module. The utility model discloses a take time window watchdog, analog switch and treatment circuit, diagnosis AD to be connected with singlechip company and changer safety operating part for function safety temperature transmitter can take emergency measure to the danger that apparatus for producing or equipment probably take place, and in time responds the situation that continues ...

Method for testing influence on quality of honeysuckle caused by harvesting and processing

The invention discloses a method for testing influence on the quality of honeysuckle caused by harvesting and processing. Reference data which meet the quality index of chlorogenic acid are obtained by testing by using the chlorogenic acid as a quality control index and testing honeysuckle in different harvesting periods, processing methods and geological conditions, and basis is provided for quality evaluation and quality control on honeysuckle. Through systematic research on the influence on the quality of honeysuckle caused by different harvesting times and processing methods, optimal harvesting time and processing methods for Jinhua honeysuckle are determined, the quality of the Jinhua honeysuckle is improved, and then the competitiveness of the honeysuckle in the medicine market is improved, the human health is ensured, and meanwhile the benefits of farmers are increased, the local economic development is prompted, and the blank that the method for testing the influence on the quality ...

Method for realizing transparent transmission between WIA-PA (wireless network for industrial automation - process automation) industrial wireless protocol and Modbus protocol

The invention belongs to the technical fields of industrial wireless network and onsite bus communication, and relates to a method for realizing transparent transmission communication between a WIA-PA (wireless network for industrial automation - process automation) industrial wireless protocol and a heterogeneous network based on an Modbus protocol. The method is characterized by comprising the following steps of embedding a WIA-PA protocol stack in wireless equipment accessed with the WIA-PA network, wherein transmission messages contain Modbus protocol data frames, namely the WIA-PA network packages the complete Modbus protocol messages into the message part of a communication protocol application layer of the network, and a physical layer, an MAC (media access control) layer and a network layer adopt a WIA-PA protocol network standard; transmitting to a terminal of the WIA-PA network, analyzing the messages of the application layer, and directly sending to Modbus equipment. The transparent ...

Preparation method of probiotic fermented grass beverage and product thereof

The invention provides a preparation method of a probiotic fermented fungus grass beverage and a product thereof, and the method comprises the following steps: cleaning tender fungus grass, drying in the shade, juicing, filtering to obtain fungus grass juice, mixing the fungus grass juice with soaked brown rice, cooking for a period of time, cooling, and putting into a fermentation barrel; implanting a mixed bacteria solution of three aspergillus bacteria into the fermentation barrel, and saccharifying and liquefying; adding water to dilute, emulsifying or pulping, and sterilizing at high temperature to obtain aspergillus fermented fungus grass liquid; planting a mixed probiotic liquid formed by mixing five probiotics into the aspergillus fermentation fungus grass liquid, and fermenting at 25-38 DEG C for 60-72 hours; and filtering to obtain the probiotic fermented fungus grass beverage. The brown rice and the Juncao are matched, and after secondary fermentation is carried out through the ...

PROFIBUS-DP main station communication equipment and microprocessor thereof and data sharing method of ASIC chip

The invention relates to the field of automatic control and discloses PROFIBUS-DP 1 type main station communication equipment and a microprocessor thereof and a data sharing method of ASIC chips. The main station communication equipment comprises an embedded microprocessor, a peripheral circuit comprising a nonvolatile memory, an ASIC chip ASPC2, a double port RAM (random access memory) and a static memory, wherein the ASIC chip ASPC2 is connected with a PROFIBUS-DP bus through an RS485 interface circuit; and a complex programmable logic device (CPLD) is connected with the microprocessor, the ASIC chip and the static memory for enabling the microprocessor and the ASIC chip to share the data of the static memory. The ASIC chip is used to guarantee the communication rate; the CPLD is used to enable the microprocessor and the ASIC chip to share the data; the development cost is saved; the performance is high; the cost is low; and the work is stable and reliable.

Valve positioner capable of being operated by key without opening cover

The invention discloses a valve positioner capable of being operated through a key without opening a cover. The valve positioner comprises the key without opening the cover, a shell and a permanent magnet. The key capable of not opening the cover comprises a reed switch and a circuit board. And the reed pipes are uniformly distributed around the circuit board. The two reed pipes are spaced by a certain distance, so that the adjacent reed pipes are not interfered when the permanent magnet attracts one reed pipe. The reed switch is attached to the upper cover of the shell after being installed, and sensitive response to the permanent magnet is achieved. The shell is provided with a permanent magnet placing groove which is used for fixing the permanent magnet when the permanent magnet is not used. After the valve positioner capable of being operated by the key without opening the cover is adopted, through the electromagnetic induction effect between the reed switch and the permanent magnet ...

Hot -blast furnace and valve stop device

The utility model discloses a valve stop device for the switching operation of valve, the valve includes valve rod support, valve rod and valve body support, be equipped with on the valve rod support with valve rod parallel arrangement's gag lever post, the gag lever post is relative the one end of valve body support is equipped with the stopper. During the use, closing the in -process when the valve, along with the decline of valve rod and valve rod support, the gag lever post descends with the stopper simultaneously, and the valve closes when targetting in place, stopper and the contact of valve body support, and stopper and gag lever post support in the middle of valve body support and valve rod support to can effectively prevent valve tenesmus, close and cause the valve to kill the emergence of phenomenons such as not opening. The utility model also discloses a hot -blast furnace of including above -mentioned valve stop device.

Method for early warning clenbuterol residues by taking pig blood as biological sample

The invention provides a method for early warning clenbuterol residues by taking pig blood as a biological sample, comprising the following steps: step one: feeding live pigs with hydrochloric acid clenbuterol and collecting urine and blood of the live pigs; step two: adding anhydrous sodium carbonate in the urine and the blood of the live pigs obtained in the step one, extracting by organic solvent, adding diluted hydrochloric acid for re-extracting after extracting, passing the re-extract through a cation columella directly, eluting by amonium methanol, drying eluent, derivating by a silanized reagent, and performing gas phase chromatography-mass spectrometry analysis; and step three: carrying out correlation analysis on the clenbuterol content of the urine and the blood obtained in the step two, and constructing a linear equation. The invention has the advantages of using blood as the biological sample for early warning the clenbuterol residues, and overcoming the defects of the biological ...

A method for realizing network recovery in loop network

The invention discloses a method for recovering networks in a ring network. Ethernet switch equipment enters a communication status after an initial configuration and precise time synchronization based on an IEEE 1588 protocol. Each equipment according to the configuration of the network sends out time-sharing equipment statement messages and link circuit checking messages. The link circuit checking messages are sent by a multicast address in two ways; if a port of equipment receives no link checking messages of a connected port after the time out, then a network trouble can be determined andlink circuit alarm messages are sent by the multicast address in two ways for alarming. The rest equipments in the ring network after receiving the link circuit alarm message, then empty an FDB list and utilize a backup link circuit to restart path learning. By adopting the method of the invention, any communication link circuit failure in the ring network can be quickly detected and correspondingly ...

Sodium-sulfur battery control system

The invention discloses a sodium-sulfur battery control system and relates to the technical field of battery control. The sodium-sulfur battery control system comprises a battery management unit module and a direct current loop management unit module, wherein the battery management unit module is used for acquiring current, voltage, battery charge condition estimation, total fault analysis and judgment and on-line alarm of a sodium-sulfur battery pack; the direct current loop management unit module is communicated with the battery management unit module through a bus and is used for receiving data of the battery management unit module; the direct current loop management unit module is communicated with a battery monitoring software module; the battery monitoring software module acquires data of the direct current loop management unit module; the battery monitoring software module is communicated with a power station monitoring system. The invention provides a new implementation mode and ...

Method for realizing redundant ring and network recovery in Ethernet

The invention belongs to the technical field of Ethernet communication, in particular relating to a method for realizing redundant ring and network recovery in Ethernet. An Ethernet ring network is formed by a plurality of switches which are connected into a ring physically and are in a chain structure logically. The invention is characterized in that only one of the switches is set to be a master station in charge of controlling the logic structure of network, the other switches are set to be slave stations; the master station and each slave station are provided with two ring ports; the state switching of the ring ports of each switch can realize backup of redundant ring chain, thus realizing network redundancy and recovery. The invention has the beneficial effects of being capable of rapidly detecting chain fault in the ring, building new network topology to recover network in occurrence of fault, realizing backup of redundant ring chain through state switching of ring port of each switchboard ...

Method for implementing on-site controller based on EPA bridge

The invention relates to a method for realizing a field controller based on an EPA bridge. Data read-write commands and control commands which are transmitted to EPA field devices in a control area by an EPA master device in a system backbone network in an EPA distributed control network have the characteristic of nondeterminacy; and when messages comprising the commands arrive at the field controller based on the EPA bridge, the controller converts the messages into EPA nonperiodic messages and adds the EPA nonperiodic messages into a nonperiodic list for scheduling. The method guarantees that all the messages in the control area are scheduled, so as to effectively reduce the collision probability of the messages and guarantee high real-time property of the EPA network.

Immunochromatographic test paper used for detecting beta stimulant and detection method thereof

The invention discloses an immunochromatographic test paper used for detecting beta stimulant and a detection method thereof. The substance coated with the colloidal metal labeling pad of the test paper is a colloidal metal labeling pads of beta stimulant antibody or a mixture of colloidal metal labeling pads of a plurality of beta stimulant antibodies, the number of detection line in the detection reaction area of the test paper is equal to the number of beta stimulant antibody coated by the colloidal metal labeling pad, and each detection line is coated with single antigen used for beta stimulant detection corresponding to the colloidal metal labeling antibody. The test paper of the invention has easy and convenient operation, can be directly used to detect the milk, serum and animal urine, can be used to detect samples such as the animal tissue, animal viscus, feed, wheat, corn and barley which are treated by simple process, and the result can be observed after 3-5min. The method of ...