46results about How to "Play a role in isolation" patented technology

The invention relates to W/O diaper cream for babies and children as well as a preparation method thereof. The W/O diaper cream comprises a component A, a component B and a component C, wherein the component A consists of 12-20% of grease, 3-5% of emulsifier and 0.05-0.1% of antioxidant according to the total weight of the diaper cream; the component B consists of 65-80% of de-ionized water, 0.05-0.15% of allantoin, 3-5% of humectant and 0.5-0.8% of stabilizer according to the total weight of the diaper cream; the component C consists of 0.3-0.8% of cortex moutan extracting solution, 0.05-0.2% of rutin extract and 0.1-0.3% of pyrrolidone carboxylic acid sodium salt according to the total weight of the diaper cream. The diaper cream has an obvious treating effect on the red buttocks phenomenon caused by the irritation of diapers, and can effectively restrain the bacteria growth so as to take the preventing and curing effects on the irritation of sensitive skin on the buttocks of the babies and children.

The invention discloses an explosion-proof distribution box. The explosion-proof distribution box is composed of a wiring chamber, a distribution frame, a smoke alarm, a seal cover, wire lead tubes, heat-shrinkable bushes and rubber plugs. The side wall of the wiring chamber is at least provided with two wiring ports, an exhaust port and an air pressure detection port, an explosion-proof glass baffle is further arranged in the wiring chamber, the distribution frame is installed in the wiring chamber, and the smoke alarm is installed on the distribution frame. Each wiring port is connected with one end of the corresponding wire lead tube through a bolt, each rubber plug is installed in the other end of the corresponding wire lead tube, the outer surface of each wire lead tube is provided with at least three wedge-shaped antiskid grooves, and the wedge-shaped antiskid grooves of each wire lead tube are wrapped by one end of the corresponding heat-shrinkable bush. The explosion-proof distribution box is simple in structure and convenient to install, enables electrical equipment to be well isolated from the outside, has the electric leakage preventing function and meanwhile has the good effects of fire alarming, inflaming retarding and fire extinguishing, thereby having the isolating, alarming, explosion preventing and inflaming retarding effects on the electrical equipment and greatly improving the safety of a power supply line and the safety of a use site.

The invention belongs to the technical field of pharmaceutical chemicals and discloses segmented copolymer - docetaxel combination, a preparation thereof and a preparation method thereof. The combination is combined by bonding polyoxyethylene - polypropylene oxide - polyoxyethylene (PEO- b - PPO - b - PEO with a product name as Pluronics (BASF company)) triblock copolymer and docetaxel through ester bond, and the Pluronics - docetaxel combination is obtained. By utilizing amphipathy of the combination and adopting physical methods to prepare micelle aqueous solution, a freeze-dried preparation can also be prepared. Nanomicelle is capable of gathering at tumor parts through 'enhanced permeation and retention effects (EPR effects)', and tumor targeting of docetaxel is enhanced. Besides, an active targeting factor is connected on Pluronics polymer so as to have the function of active targeting. The segmented copolymer - docetaxel combination overcomes the defects that existing docetaxel injection is poor in water-solubility and severe in allergic reaction and the like.

The invention provides a data table processing method and device. reading parameters of the command according to the data; obtaining the name of a data table and the name of a data format file corresponding to the data table, when the data reading command is used for reading the second version of data; combining the data in the data table with the data in the modification table according to a preset combination rule to obtain second version data, storing change data of the second version data relative to the first version data in the modification table, and converting the second version data into preset recognizable data according to a data format file corresponding to the data table. The modification table is maintained for the data table, if the second version data of the data table changes relative to the first version data, only the modification table needs to be modified, and if the second version data of the data table does not change relative to the first version data, only thedata table needs to be modified, so that the data maintenance amount of the data table is reduced.

The invention discloses a lining supporting system for a tunnel framing reconstruction tunnel bottom structure and a construction method thereof. The supporting system comprises an inverted arch lining, a primary support, steel flower tube lock feet, a blocking isolation wall and a pre-reinforcing pile, wherein the inverted arch lining and the primary support are arranged at the tunnel bottom, thesteel flower tube lock feet are driven into surrounding rock from side walls on the two sides, and the blocking isolation wall and the pre-reinforcing pile are positioned above and below a central ditch correspondingly; the inverted arch lining comprises two half-range inverted arch linings which are symmetrically arranged in the transverse direction of a tunnel; the primary support comprises twohalf-range primary supports which are symmetrically arranged in the transverse direction of the tunnel; and the pre-reinforcing pile is fixedly connected with the two half-range inverted arch liningsand the two half-range primary supports. According to the lining supporting system for the tunnel framing reconstruction tunnel bottom structure and the construction method thereof, the risk of framing reconstruction of the tunnel bottom structure in the operating state of the tunnel is reduced in the form of framing excavation and framing support, the operation time of reconstruction of the tunnel bottom structure can be not limited, the overhead reinforcing procedure of a steel cushion beam is omitted, interference to a track structure is reduced, and the construction progress in the operating state can be greatly improved on the premise of ensuring safety.

The invention discloses a method for fire polishing of a rhinestone pearl blank by means of a composite powder medium, and belongs to the technical field of rhinestone pearl blank machining. The method comprises the step that the composite powder medium and the rhinestone pearl blank are added into a rotary metal cylinder after being evenly mixed and are heated and subjected to fire polishing, wherein the composite powder medium comprises graphite powder and inorganic powder, and the weight ratio of the graphite powder to the inorganic powder to the rhinestone pearl blank is (1-4):(1-6):(93-96). According to the method for fiber polishing of the rhinestone pearl blank by means of the composite powder medium, the fire polishing circular degree and efficiency of the rhinestone pearl blank can be improved, the rhinestone spheroidizing and finishing time can be shortened, the working efficiency of a fire polishing furnace can be improved, meanwhile, the composite powder medium can be recycled, graphite powder oxidation consumption can be reduced, the production environment can be improved, and the spheroidized rhinestone pearl blank can be easy to clean.

The invention discloses a oral spray preparation and a preparation method thereof. The oral spray preparation is prepared from liquid crystal materials, alginate and mercapto polymer. The preparationmethod of the oral spray preparation comprises the following steps: firstly, dissolving and dispersing a medicine and the liquid crystal materials under an effect of a co-solvent so as to form medicine-carrier liquid crystal nanoparticles; then enveloping the medicine-carrier liquid crystal nanoparticles by adopting the alginate, so that the stability of the medicine-carrier liquid crystal nanoparticles can be greatly improved through the operations, a slow release effect is obvious, and deactivation of the medicine and aggregation and precipitation of the nanoparticles are prevented; the mercapto polymer and half-cystine in a body are combined on an affected part to form a film so as to play isolation and protection effects on the affected part, and therefore, the acting time of the medicine is prolonged, the concentration of the local medicines is obviously increased, development of the medicine is facilitated, the condition that a medicament is diluted due to retention of saliva inan oral cavity so as to lose efficacy is avoided.

The invention discloses an aluminum-plastic film structure for a secondary rechargeable soft package battery. The structure comprises an aluminum layer (1) provided with an anti-corrosion layer on each of an upper surface and a lower surface; an outer protective layer (3) and an insulation inner layer are respectively adhered on two anticorrosion layers (2); the insulation inner layer comprises a first insulation layer (4) adhered on the lower surface of the anticorrosion layer (2) at the lower side of the aluminum layer (1), and a second insulation layer (5) adhered on the lower surface of the first insulation layer, wherein the first insulation layer (4) is one of a PET layer, a PI layer and a PBT layer, and the second insulation layer (5) is one of a CPP layer, a PP layer, an EAA layer and a PE layer. The structure disclosed by the invention has higher security performance, and is convenient for stamping processing.

The invention discloses a composite lining for the corrosion prevention of a dissolution tank. The composite lining is characterized by comprising a metal layer, a closed layer and an acid-proof brick layer, wherein the metal layer, the closed layer and the acid-proof brick layer are sequentially combined on a metal substrate of the dissolution tank, the closed layer is formed by epoxy resin powder and a sheet metal material, and the acid-proof brick layer and the closed layer are connected with each other through an inorganic adhesive layer so as to prevent the infiltration of a corrosive medium. According to the invention, the metal layer can achieve an anode protection effect, or utilizes the excellent corrosion prevention properties of various metal alloys; the closed layer achieves an effect of adhering the inorganic adhesive layer to the metal layer, and also can isolate the metal layer; the acid-proof brick layer further has anticorrosive, isolated and abrasion-resistant effects, so that all the layers are entirely coordinated so as to achieve multiple corrosion prevention functions.

The invention discloses a roof greening construction process method. The construction process of the method comprises the steps that a foam glass plate is backfilled on a roof base structure, and lightweight concrete is poured; the lightweight concrete is solidified to form a concrete protective layer, and then a first waterproof layer and a second waterproof layer are laid on the concrete protective layer; a drain board is laid on the second waterproof layer, a first water-permeable cloth is laid on the drain board, and the drain board is bound to the first water-permeable cloth; irrigation net wires and a double-layer planting soil grid are laid on the first water-permeable cloth, and the upper layer planting soil grid and the lower layer planting soil grid are separated by a first geotextile; a soft hole-shaped material is laid in the lower layer planting soil grid, the lower layer planting soil grid is filled with first perlite particles and the second perlite particles, and lightweight planting soil is backfilled in the upper layer planting soil grid; and after the backfilling of the lightweight planting soil is completed, vegetations are planted. The roof greening construction process method provides certain isolation and protection functions for a building, and reduces the corrosion to the building by the soil and rainwater.

The invention discloses halogen-free flame retardant foamed EVM (ethylene vinyl acetate copolymer) rubber and a manufacturing method thereof. The rubber is prepared from the following raw materials inparts by weight: 100 parts of EVM 500PXL, 10-20 parts of carbon black N774, 5-7 parts of a plasticizer DOS, 5-7 parts of a plasticizer TOTM, 1-2 parts of zinc stearate, 1-2 parts of a dispersing agent, 1-2 parts of polyethylene wax, 4-6 parts of a foaming agent HH138, 2-3 parts of a cross-linking agent BIBP, 1-2 parts of a cross-linking agent TAIC, 3 parts of an antihydrolysis agent P50, 1-2 parts of preservation wax, 1-2 parts of an anti-aging agent 445, 1-2 parts of an anti-aging agent TMQ and 80-120 parts of flame-retardant fillers. The manufacturing method comprises the following steps: kneading and milling the raw materials, so as to obtain a rubber compound material; feeding the rubber compound material into a pin cold feed extruder, so as to extrude a higher-density preformed film;slicing the preformed film on a conveying belt at a fixed length, so as to obtain a film with the fixed length; performing primary sulfurization foaming on the film with the fixed length with a primary square mould and secondary sulfurization foaming on the film with the fixed length with a secondary square mould; naturally cooling for 10-15 days under a normal temperature, so as to obtain the halogen-free flame retardant foamed EVM rubber. The EVM rubber is strong in toughness, good in heat preservation and good in elasticity and is high-low temperature-resistant, anti-aging, oil-resistant,halogen-free, flame-retardant, environmentally friendly and non-toxic.

The invention relates to a welding device for welding a large-scale pipe fitting elbow. The welding device comprises a lifting bracket, the bracket is connected with a welding arm, and a welding machine head is arranged on the end part of the welding arm. The welding device further comprises an elbow weldment clamping and fixing device, wherein the elbow weldment clamping and fixing device comprises a driving chain wheel, a first hydraulic oil cylinder, a first linear slide way and a second linear slide way, the driving chain wheel is driven by a driving chain to rotate, and correspondingly, adriven chain wheel is arranged on the inner side of the driving chain; the first hydraulic oil cylinder is connected with the driving chain, and can drive the driving chain to move up and down; and the first linear slide way, the second linear slide way and the driving chain wheel are arranged in a fan shape, the end parts of the two linear slide ways are hinged to a wheel shaft of the driving chain wheel, clamping and fixing pieces are arranged on the two linear slide ways, and the clamping and fixing pieces are used for clamping and fixing elbow weldment. The elbow weldment is convenient tofix, and is smooth and steady in rotation speed.

A solid-state aluminum electrolytic capacitor with high heat dissipation performance comprises a shell, a core cladding and a rubber plug, the core cladding is arranged in the shell in a sealed mode through the rubber plug, a plurality of heat dissipation holes are formed in the shell, and a waterproof breathable film is formed on the inner wall of the shell or installed on the inner wall of an opening of the shell. According to the capacitor, the holes are formed in the shell, so that heat generated by the core cladding in the shell can be directly dissipated through the heat dissipation holes, and heat dissipation of the capacitor is accelerated; and the waterproof breathable film can play a role in isolation and dust prevention, so that the effect of protecting the core cladding is achieved.

The invention belongs to the technical field of polymer composite materials, and particularly relates to a regenerated glass fiber reinforced nylon 66 composite material and a preparation method thereof. A self-designed pulse extrusion screw is adopted, regenerated polyethylene/nylon 6 composite particles, an external lubricant, an internal lubricant and an antioxidant are added for regeneration modification aiming at glass fiber reinforced nylon 66 crushed materials from recycled automobile water tanks, and the glass fiber reinforced nylon 66 composite material is prepared. The mechanical property retention rate can reach more than 90% of that of a crushed material, and the mechanical strength is far higher than that of a regenerated material prepared by a conventional method. And the recycled glass fiber reinforced nylon and polyethylene/nylon 6 composite particles are adopted, so that the recycling value of the waste plastic is improved, and the industrial application prospect is very good.

The invention discloses a water quality analyzer with a water sample reagent adding precision function, which can realize the water sample reagent adding precision function of the water quality analyzer through the cooperative use of a storage test tube, a U-shaped tube and a sample adding guide tube. A method comprises steps: a water sample is injected into the storage test tube, the volume of the injected water sample is observed through first scales, after water sample injection work is finished, the storage test tube is sealed through a first sealing plate, a reagent is injected into the sample adding guide tube, and the volume of the injected reagent is observed through second scales; a second piston, a connecting seat and a baffle plate are matched for use, so that the detection efficiency of the water quality analyzer can be effectively improved; an upper top plate is pressed downwards, so that a second sliding pipe moves downwards, and the ends, away from the connecting seat, of the three baffles rotate upwards through a first connecting ring and a rotating shaft; according to the invention, the problems that a water sample reagent adding precision function of the water quality analyzer cannot be realized and the detection efficiency of the water quality analyzer is poor can be solved.

The invention discloses a novel multifunctional machine tool vibration-damping sizing block. The novel multifunctional machine tool vibration-damping sizing block comprises a shell, wherein a threaded hole is formed in the top surface of the shell; a round groove is formed in the bottom surface of the shell; a rubber air bag is arranged in the round groove; a plurality of vibration-damping bolts are uniformly arranged around the bottom surface of the shell; the height of the inflated rubber air bag is greater than the height of the shell after the vibration-damping bolts are arranged on the bottom surface of the shell. According to the novel multifunctional machine tool vibration-damping sizing block provided by the invention, vibration-damping and mechanical leveling effects are achieved by mounting the vibration-damping bolts, the inherent frequency is low, and mechanical leveling is convenient and easy to perform; due to the fact that the rubber air bag is arranged in the round groove, the effects of finely adjusting the height of a machine tool and isolating relatively low vibration frequency are achieved; the novel multifunctional machine tool vibration-damping sizing block is simple in structure, reasonable in design, multifunctional, and relatively wide in application range.

The invention provides an automatic transformer substation monitoring system with an intelligent field bus error-correction function. The automatic transformer substation monitoring system comprises an upper computer, a communication manager, an intelligent error correction device and an intelligent machine, wherein the upper computer, the communication manager and the intelligent error-correction device are sequentially connected; the intelligent error correction device is connected with the intelligent machine through a field bus. The automatic transformer substation monitoring system has the advantages and the positive effects that the downlink is connected in parallel to the same field bus, the uplink is connected with a central processing unit, equipment in the bus is monitored, data are identified and analyzed, and abnormal equipment in the bus is found in time and is positioned through an acoustic-optical signal; the intelligent error correction device has functions of isolation and error correction between the bus and each processing unit, and the stability of the system is improved.

The invention discloses a recovery method of the epitaxial growth reaction cavity of a light-emitting diode and an epitaxial growth method of the light-emitting diode and belongs to the technical field of semiconductors. The recovery method comprises the following steps that: a Ga source and NH3 are introduced into a reaction cavity, so that a first compound coating can be formed; an Al source isintroduced into the reaction cavity, so that a second compound coating can be formed; the introduction of the Al source into the reaction cavity is stopped, graphene is introduced into the reaction cavity to the catalyze doping of the Al source into the second compound coating in the reaction cavity; the introduction of the graphene into the reaction cavity is stopped, and a stone Mg source is introduced into the reaction cavity to form a third compound coating; the introduction of the Mg source into the reaction cavity is stopped, graphene is introduced into the reaction cavity to catalyze the doping of the Mg source into the third compound coating in the reaction cavity; and the introduction of the Ga source, NH3 and graphene into the reaction cavity is stopped, so that the recovery of the reaction cavity is finished. With the recovery method of the method adopted, an excellent environment required by the normal growth of the reaction cavity is rapidly recovered, and finally the growth efficiency of MOCVD (metal organic chemical vapor deposition) and product quality are improved.

The invention provides a safe ecological system for treating heavy metal solid waste. The safe ecological system comprises a reservoir bottom foundation layer, an underground water diversion layer, acompacted clay layer, a leachate diversion layer, a waste pile body layer, a closure middle earthing layer, a closure exhaust layer, a closure compacted clay layer, a closure drainage layer, a nutrient soil layer and an ecological greening layer. A first geomembrane is arranged between the reservoir bottom foundation layer and the underground water diversion layer; a second geomembrane is arrangedbetween the underground water diversion layer and the compacted clay layer; a third geomembrane and a fourth geomembrane are arranged between the compacted clay layer and the leachate diversion layer; and a fifth geomembrane is arranged between the leachate diversion layer and the waste pile body layer. The geomembranes in the system can achieve the effects of protection, blocking and isolation,and the content of heavy metal in the nutrient soil layer is greatly reduced. The ecological greening layer adopts multi-element integrated matching of trees, shrubs and grass to realize ecological restoration. The safe ecological system has the advantages of high anti-seepage standard, low secondary pollution risk and high environmental safety.

The invention provides a high-damping self-limiting shock insulation and absorption device. The high-damping self-limiting shock insulation and absorption device comprises a shelf bottom force-transfer steel plate, a floor embedded steel plate, pre-tightening bolts, a shock insulation and absorption cushion and a curved steel plate spring, wherein limiting holes are formed in the shelf bottom force-transfer steel plate, and threaded holes are formed in the upper end face of the floor embedded steel plate and correspond to the limiting holes; the pre-tightening bolts penetrate through an installation gap to be connected into the limiting holes and the threaded holes in a threaded manner; locking nuts are mounted at the ends, stretching out of the limiting holes, of the pre-tightening bolts;the curved steel plate spring is fixed between the shelf bottom force-transfer steel plate and the floor embedded steel plate. According to the high-damping self-limiting shock insulation and absorption device, horizontal excitations such as earthquakes applied to a shelf can be isolated and weakened, so that it is guaranteed that the large shelf only slides leftwards and rightwards within a narrow range when vibrated and can return to the original position after the vibration process is completed. The invention further provides a using method of the high-damping self-limiting shock insulation and absorption device.

The invention discloses a water cup. The inner wall of the cup body (1) is provided with a partition layer to longitudinally partition the interior of the cup body (1) into N independent spaces, and also includes N straws (3) and N water spouts (5). The lower ends of the straws (3) respectively extend into each independent space, and the tops of the straws (3) are detachably connected to the lower plane of the first cup cover (2), and the upper plane of the first cup cover (2) is fixedly provided with N branches The seat (4), the first cup cover (2) and the support (4) are provided with a through hole for connecting the straw (3), and the body of the water nozzle (5) is a hollow cylinder and its peripheral outer wall is provided with a connection Through the drinking water pipe (51) inside the main body, the water nozzle (5) body is also provided with an opening (52), and the water nozzle (5) is rotatably installed on the support (4) through the end shafts (53) at both ends. The first cup cover (2) is detachably connected to the upper end of the cup body (1). The water cup of the present invention can contain various beverages and has an independent straw device, has a simple structure and is suitable for popularization.

The invention discloses a fabricated waterlogging preventing water draining anticollision road barrier. A ground water draining connecting plate is arranged in the ground; two vertical side anticollision connecting plates are arranged above the ground water draining connecting plate; water draining pipes are arranged in the vertical side anticollision connecting plates; an upper connecting troughplate is arranged between the two vertical side anticollision connecting plates; an internal vertical support plate is arranged between the upper connecting trough plate and the ground water drainingconnecting plate; a plurality of cushioning devices are arranged between the internal vertical support plate and an anticollision main plate; a top translucent cover plate is arranged above the upperconnecting trough plate; an anticollision protective layer is arranged on the outer side of the anticollision main plate above the ground; and a plurality of night lights are arranged on an electric wire on the outer side face of the anticollision protective layer. The fabricated waterlogging preventing water draining anticollision road barrier can play a role in relieving ponding on a motor vehicle road and preventing flood, also can meet the requirement for traffic anticollision protection of people, provides demand energy for night lighting while solving problems about road surface water draining and the road barrier anticollision, and collects plenty of solar energy on the water draining and anticollision basis.

The invention discloses a packaging box for an aviation integrated bearing and a bearing packaging method and aims to solve the following problems: existing bearing external packaging adopts corrugated paper box packaging, bearing internal packaging adopts polyethylene vacuum plastic packaging, matching of the internal and external packaging and the shape of the bearing of the integrated structureis poor, as a result, during the transporting process, packaging is likely to have air leakage due to vibration to damage the bearing due to collision, and the anticorrosion and the moisture resistant performance is poor. The packaging box for the aviation integrated bearing comprises an external packaging box and two symmetrical inner containers; the two inner containers are buckled to form an upper cavity and a lower cavity and are arranged in the external packaging box; a packaging cover is arranged above the upper cavity of the two inner containers; the lower cavity of the two inner containers is matched with the outline of the inner ring of the bearing; and the outline of the upper cavity enables an outer ring and a retainer to be embedded in the cavities of the inner containers fromtop to bottom. The packaging box is applicable to packaging of aviation bearings.

The invention discloses a rainfall signal processing circuit with isolation and locking functions. The rainfall signal processing circuit comprises a photoelectric coupler U. A fifth pin of the photoelectric coupler is connected with a resistor R6 and a resistor R5 in sequence and then connected with a power source Vcc, and a rainfall signal enters the photoelectric coupler U through the resistor R6 and is output through a second pin of the photoelectric coupler U. The rainfall signal processing circuit further comprises a diode D1, a diode D2, a diode D3 and a diode D4. The anode of the diode D1 is connected with a resistor R2. The anode of the diode D2 is connected with the second pin of the photoelectric coupler U. The anode of the diode D3 is grounded. The cathode of the diode D3 is connected with the cathode of the diode D1. The anode of the diode D4 is grounded. The cathode of the diode D4 is connected with the cathode of the diode D2. By the adoption of the structure, the effects of protecting and reshaping the rainfall signal can be achieved; besides, the photoelectric coupler can play a role in isolation and locking.

The invention discloses an isolation type reinforcing method based on a soft soil foundation, and belongs to the technical field of foundation reinforcement. According to the isolation type reinforcing method based on the soft soil foundation, the outer side of a precast pile can be filled with an isolation filler in a precast pile reinforcing mode, an isolation cladding is formed to conduct waterseepage protection on the precast pile, and the isolation cladding and the precast pile form a whole in the mode that concrete is poured after the surface of the foundation is excavated; meanwhile, an isolation piece is pre-buried in the isolation cladding to detect the underground water seepage phenomenon, once the water seepage phenomenon occurs, the feedback action of the isolation piece is triggered in a guiding mode, and a water seepage area is blocked through a magnetic micro-capsule; on the one hand, water in the water seepage area is forced to be rapidly condensed into ice, thus further seepage of the water can be blocked, meanwhile, the water seepage area can be temporarily reinforced, and the phenomenon of strength reduction is improved; and on the other hand, technicians are reminded in time to conduct treatment through temperature change, the construction cost and difficulty are low, and the foundation reinforcing effect and construction efficiency are remarkably improved.

The fabricated house structurally comprises a frame body, a roof, supporting columns, a cross beam, a window frame, supporting feet, a window body, an upper top plate, a lower top plate and a damage prevention piece, the roof is located on one side of the frame body, when a steel structure is installed, bolts and the steel structure are isolated through the damage prevention piece, and the situation that the bolts are damaged in the installation process is avoided. Paint of a steel structure falls off, the protective force of paint is reduced, and the service life of the steel structure is shortened due to misoperation of workers, a roof is covered through an upper top plate and a lower top plate, and heat preservation, shock prevention and fire prevention are conducted on the frame body through a foamed plastic layer arranged on one side of the frame body; the foamed plastic is coated with an anti-static coating to prevent static electricity and dust, the supporting columns and the cross beams are used for supporting, the frame body is fixed through the supporting legs, the glass is pressed on the springs, and the electromagnets are pushed for adsorption.

The invention provides a variety steel drainage agent and a preparation method thereof, and belongs to the technical field of self-consumption cut-off devices. The drainage agent is prepared from the following raw materials in parts by weight: 30-70 parts of waste magnesia carbon brick powder, 10-40 parts of waste silicon carbide brick powder, 0-30 parts of quartz powder, 1-8 parts of a carbonaceous material and 2-8 parts of an adhesive. The technical scheme is matched with a specific preparation process, and the produced variety steel drainage agent is resistant to high temperature, stable in performance and good in fluidity; waste materials are recycled, the manufacturing cost is low, energy is saved, environment friendliness is achieved, and the particle size component segregation phenomenon is avoided; and the self-opening rate in use can be basically stabilized at 99.8% or above.