加热底座

电蒸锅

电火锅

电磁炉

Catalyst for continuously producing 1, 1, 1, 3-tetrachloropropane through gas-solid phase reaction as well as preparation method and application of catalyst

The invention discloses a catalyst for continuously producing 1, 1, 1, 3-tetrachloropropane through a gas-solid phase reaction as well as a preparation method and application of the catalyst. The catalyst comprises a zero-valent iron and phosphorus co-modified carbon material, and the zero-valent iron and phosphorus co-modified carbon material comprises a carbon material serving as a carrier, zero-valent iron which is loaded on the carrier and serves as an active component, and phosphate functional groups formed on the surface of the carbon material. The preparation method comprises the following steps: jointly modifying a carbon material with ferrite and organic phosphorus to obtain the catalyst for continuously producing 1, 1, 1, 3-tetrachloropropane through gas-solid phase reaction. The invention also provides a method for continuously producing 1, 1, 1, 3-tetrachloropropane through gas-solid phase reaction. According to the catalyst provided by the invention, the active component zero-valent ...

SCISSORS-TYPE EXPANSION BOLT

A scissors-type expansion bolt applicable in hollow brick or porous lightweight brick wall for implementing secure and firm fixing, comprising a fastening element having an expansion element, and a pushing element. The pushing element matches the fastening element and is allowed to push forward coaxially along an axis of the fastening element. The expansion element is hinged to a top part of the fastening element. The expansion element is provided at a bottom part thereof an oblique face (14) facing the pushing element. The top part of the pushing element is allowed to contact with the bottom part of the expansion element, and to push the expansion element along the oblique face at the bottom part of the expansion element, thus allowing the expansion element to expand outward. The scissors-type expansion bolt is structurally simple, easy to process, reduced in processing costs, convenient and reliable to use.

ENERGY-SAVING MODEL OF TRACTION-TYPE ELEVATOR AND ENERGY-SAVING METHOD THEREFOR

Disclosed are an energy-saving model of a traction-type elevator and an energy-saving method therefor. The traction-type elevator comprises at least one counterbalance unit, each counterbalance unit comprising a traction machine (12), an automatic transmission (11), a hoist-type lifting mechanism (9), a power-generating electric motor (6), and a controller (7) which are provided in a machine room, and a car (14), a fixed counterweight (13) and a balancing counterbalance (14) which are provided in an elevator shaft. The energy-saving method for the traction-type elevator involves using the principle of moment balance, whereby adding a separate elevator balancing counterbalance to achieve intelligent counterbalancing of the elevator means that the elevator achieves relative balance, thereby reducing the traction moment and rate of work of the traction machine. When the potential energy of the elevator balancing counterbalance builds up to a high position, the power-generating electric motor ...

Plugging device for wall screw hole

The invention discloses a wall screw hole plugging device which comprises a plugging pipe and an execution mechanism, the plugging pipe can be controlled to extend into or out of a hole through the action of the execution mechanism, and a plugging material is conveyed in cooperation with the action of an inner pipe, so that the plugging work of the screw hole is realized, the plugging material does not need to be manually filled into the hole, the working efficiency is improved, and the labor intensity of workers is reduced. Under the action of the baffle plate, when the outer pipe extends into the hole, the injected plugging material can be compacted, so that the plugging effect is improved; through a pressing plate composed of a plurality of sub-plates and under the action of a first linkage rod, movement of an inner pipe can be converted into control over unfolding and shielding of the pressing plate, and through control over the movement distance of the inner pipe and control over the ...

Photooxygen catalytic purifier for environmental waste gas treatment and use method of photooxygen catalytic purifier

The invention discloses a photo-oxygen catalytic purifier for environmental waste gas treatment and a using method thereof, and belongs to the field of photo-oxygen catalytic purifiers, the photo-oxygen catalytic purifier comprises a buffer adsorption tank and a photo-oxygen catalytic tank, one end of the buffer adsorption tank is fixedly communicated with an absorption pipe, and the other end of the buffer adsorption tank is fixedly communicated with a connecting pipe; a buffer adsorption mechanism is arranged in the buffer adsorption tank, a catalytic light column is electrically connected to the interior of the photo-oxidation catalytic tank, an exhaust pipe fixedly communicates with one end of the photo-oxidation catalytic tank, and a catalytic adjusting mechanism is arranged in the photo-oxidation catalytic tank. Adsorbed waste gas is input into the photo-oxidation catalysis tank through the connecting pipe, then the adjusting wind resistance block is extruded, the air duct blocking ...

Remote sensing identification method for rice and duck comprehensive planting and breeding mode

The invention discloses a remote sensing identification method for a rice and duck comprehensive planting and breeding mode. The method comprises the steps of obtaining a remote sensing image of a target area in a rice heading period, and obtaining a normalized vegetation index, a green normalized vegetation index and a near-infrared band of the remote sensing image; determining rice pixels and non-rice pixels through texture analysis; determining the ratio of the pixels of the normalized vegetation index outside the upper edge value and the lower edge value of the normalized vegetation index and the ratio of the pixels of the green normalized vegetation index outside the upper edge value and the lower edge value of the normalized vegetation index relative to the total number of the pixels of the land parcel, and identifying whether the land parcel is a first land parcel; identifying whether the first plot is a second plot according to the proportion of the non-rice pixel number in the ...

Sampler and method of use

The invention discloses a sampler and a use method, the sampler comprises a suction pipe, an extraction mechanism and a quantification mechanism, the suction pipe is connected to the extraction mechanism, the quantification mechanism is sleeved outside the extraction mechanism, and the quantification mechanism rotates along the axial direction relative to the extraction mechanism. The quantitative extraction device has the advantages that the quantitative mechanism is used for setting the sampling amount of the sampler, then the extraction mechanism and the reset module in the quantitative mechanism are used for extracting the experimental medicament into the suction pipe, quantitative extraction of the experimental medicament is completed, the structure is simple, operation is convenient, and the problems that an existing device mentioned in the background technology is complex in structure, large in size and inconvenient to use are solved.

Information capturing method based on CAD electrical schematic diagram

According to the information capturing method based on the CAD electrical schematic diagram, the drawing is rapidly converted into the report form by developing the CAD plug-in, on one hand, drawing tabulation checking is achieved, and the design accuracy and design quality are improved; and on the other hand, information needed by equipment production and purchase is supported through the extracted equipment information report, and the function of automatically extracting related mass information from CAD drawings is achieved. According to the method, for the intricate and huge-data-volume electrical schematic diagram, the connection relation between the equipment and the cable is rapidly captured on the basis of following the logic relation of the schematic diagram, a report for drawing checking and equipment production related information is provided, and the efficiency of related work is greatly improved. On the basis of following the logical relationship of the electrical schematic ...

Environment-friendly photovoltaic power generation device for highway slope protection

The invention provides an environment-friendly photovoltaic power generation device for highway slope protection, and relates to the technical field of photovoltaic power generation. The environment-friendly photovoltaic power generation device for the highway slope protection comprises a main supporting rod, a base is fixedly arranged at the lower end of the main supporting rod, extending grabbing teeth are fixedly arranged at the lower end of the base, humidity sensors are fixedly arranged on the two sides of the base, and a supporting platform fixedly sleeves the position, close to the upper end, of a rod body of the main supporting rod; a water storage mechanism movably sleeves a rod body of the main supporting rod located at the upper end of the supporting platform, a power generation mechanism sleeves the upper end of the main supporting rod in a threaded mode, watering mechanisms are fixedly arranged on the two sides of the lower end face of the water storage mechanism through connecting ...

Copper plating device for surface of tungsten spiral line of traveling wave tube

The invention relates to a copper plating device for the surface of a tungsten spiral line of a traveling wave tube, which belongs to the technical field of traveling wave tubes and comprises an electroplating tank mechanism, a spiral line suspension mechanism, a power distribution mechanism, an ionization mechanism and a finished product placing frame, the vacancy placing frame is arranged on the front side of the front end of the electroplating tank mechanism, the ionization mechanism is arranged on the front side of the vacancy placing frame, and the finished product placing frame is arranged on the front side of the ionization mechanism. The power distribution mechanism is arranged on one side of the electroplating pool mechanism, and the spiral line suspension mechanism is arranged on the inner top side of the electroplating pool mechanism. According to the device, the arrangement of copper plating of the tungsten spiral line of the traveling wave tube is optimized, the device is improved ...

Travelling wave tube spiral line welding clamp and method

The traveling wave tube spiral line welding clamp comprises a clamp table mechanism, a clamp table corner mechanism and a fixing seat stand, the clamp table mechanism is connected to the clamp table corner mechanism, the clamp table mechanism can move on the clamp table corner mechanism, the clamp table corner mechanism is connected to the top side of the fixing seat stand, and the clamp table corner mechanism can move on the fixing seat stand. And the clamp table corner mechanism can move and rotate up and down on the top side of the fixed seat table. The arrangement of the traveling wave tube spiral line welding clamp is optimized, the structure of a traditional single clamp is changed, the clamp structure capable of being used in multiple directions is designed, the structure can be used in cooperation with welding operators and welding working machines, the application range is wider, the structure can conduct multiple adjusting modes of rotation and angle adjustment, and the welding ...

Method for rapidly detecting content of diglyceride in grease

The invention belongs to the technical field of oil product component detection, and particularly relates to a method for rapidly detecting the content of 1, 3-diglyceride in grease by using citric acid. The method mainly comprises the following steps: (1) drawing a standard curve; (2) weighing a grease sample, adding reaction reagents citric acid and concentrated sulfuric acid, carrying out a stirring reaction under a heating condition, centrifuging after the reaction is completed, taking a precipitate part, and weighing the mass of the precipitate; and (3) substituting into a standard curve for calculation to obtain the content of 1, 3-diglyceride. The detection method has good linear correlation when the concentration range of the 1, 3-diglyceride is 0-80 g/100 g, and the lowest detection limit of the 1, 3-diglyceride in the grease is 23.1 g/100 g. According to the method, high-end instruments and equipment and professional technicians are not needed, the operation is simple, the cost ...

Thymol content detection method and quality control method of triamcinolone acetonide neomycin plaster

The invention discloses a thymol content detection method and a quality control method of a triamcinolone acetonide and neomycin plaster, and the content detection method comprises the following steps: (1) removing a cover lining from the triamcinolone acetonide and neomycin plaster, cutting into pieces, precisely weighing a preset amount, placing in a volumetric flask, adding an organic solvent, and shaking to dissolve a to-be-detected product; (2) continuously adding absolute ethyl alcohol, and shaking while adding to slowly separate out the precipitate; (3) continuing to add the same organic solvent as that in the step (1) to a constant volume to the scale of the volumetric flask; (4) centrifuging and taking supernate; and (5) detecting the supernate obtained in the step (4) by adopting a gas chromatograph. The thymol is extracted from the triamcinolone acetonide neomycin plaster by adopting a method of dissolving the plaster by adopting the organic solvent and precipitating the rubber ...

Nursing bed for endocrine metabolism department

The invention discloses a nursing bed for the endocrine metabolism department, and relates to the field of nursing beds. The device comprises a nursing bed body, a bottom frame is arranged at the bottom of the nursing bed body, guide rails are arranged on the bottom frame, a moving box is slidably arranged between the two guide rails, a collecting cylinder is placed in the moving box, and a hydraulic column is arranged between a bed board of the nursing bed body and the bottom frame. According to the nursing bed for the endocrine metabolism department, the receiving box is arranged on one side of the nursing bed body, the waste discharging hopper is arranged at the receiving box, and the bottom end of the waste discharging hopper is connected with the waste discharging pipe, so that when a patient lying on the nursing bed body needs to vomit, the patient can directly vomit at the waste discharging hopper; vomitus is discharged into the collecting barrel through the waste discharging hopper ...

Building material detection equipment

The invention provides building material detection equipment, and relates to the field of capital construction material detection, the building material detection equipment comprises a sieve cup and a plurality of sieve pores surrounding the side wall of the sieve cup in an array, and the sieve cup is internally provided with a cross partition plate; the cover plate is arranged at the cup opening of the screen cup in a covering mode and abuts against the cross-shaped partition plate, so that the containing space in the screen cup is divided into a plurality of screen cavities which are not communicated through the cross-shaped partition plate; and the soft rod deviates from the axis of the sieve cup and sequentially penetrates through the cover plate, the cross-shaped partition plate and the sieve cup, the end part of the soft rod is turned to penetrate through the sieve cup again at the relative position of the penetrating position, and the cross-shaped partition plate and the cover plate ...