38results about How to "Avoid stockpiling" patented technology

The utility model discloses a reaction kettle for lubricating oil processing, including the reaction kettle main part, be equipped with the kettle body and top cover on the reaction kettle main part, be equipped with the inner chamber in the kettle body, the outside of kettle body is installed with the outer layer protection sleeve, is equipped with the cooling cavity between outer layer protection sleeve and kettle body, is installed with the main shaft motor and the main shaft on the top cover, one end of main shaft is installed on the main shaft motor, the other end of main shaft is installed in the kettle body, the utility model discloses, through setting cooling cavity and inner wall column, the center of inner chamber and outer wall are cooled simultaneously, make inside and outside temperature as far as possible balance, prevent material internal heat accumulation, avoid in the process of stirring, the heat accumulation, influence lubricating oil synthesis, through with the main shaft as the axle center rotation of screw rod type agitator and frame type agitator simultaneously, screw rod type agitator and frame type agitator respectively with the axle center rotation of self central axis, screw rod type agitator and frame type agitator rotate in the inner chamber, form more faster axial flow and radial flow in the inner chamber, promote the stirring effect.

The utility model belongs to the technical field of air filtration, and particularly relates to a filter convenient to clean and replace, which comprises a filter cartridge, one end of the filter cartridge is connected with an air inlet pipe, the other end of the air inlet pipe is connected with an exhaust pipe, the top end of the filter cartridge is provided with an insertion opening, and a filter plate is inserted into the filter cartridge through the insertion opening. A bracket is arranged at the bottom end, corresponding to the insertion opening, of the filter cartridge; wherein a nozzle is further mounted at the top end of the filter cartridge, and the nozzle is located between the exhaust pipe and the socket. When the filter plate is cleaned, the filter plate is shaken by driving the filter plate to move up and down, so that residual dust on the filter plate is shaken off; dust is blown down in a manner of blowing air to one side of the filter plate by utilizing a spray head, so that the aim of cleaning the filter plate is fulfilled; and the residue discharge port is formed in the bottom of the filter cartridge, so that dust shaken off from the filter plate can be discharged from the residue discharge port when the filter plate is cleaned.

The utility model belongs to the field of feeding technology especially, a kind of feeder for drying sterilization integrated machine, it includes: storage hopper, for temporarily storing material and being installed on frame;Vibrating hopper, located below storage hopper, is fixedly connected with frame by multiple elastic supporting members, and vibration device is set on vibrating hopper, for receiving the material dropped by storage hopper, then evenly transported to conveying belt;Flattening mechanism, installed on frame, for scraping uniformity to the material on conveying belt;Frame, installed on the rack of general machine, so that vibrating hopper and flattening mechanism are located directly above the conveying belt of general machine, in the utility model, by setting vibrating hopper, traditional Chinese medicinal decoction pieces falling from storage hopper to vibrating hopper can be redistributed to make cloth more uniform, by setting vibrating hammer, vibration can be formed to the necking of storage hopper, avoid material storage and blockage at necking.

The application discloses a reverse osmosis membrane flushing system for water preparation and bubble water preparation waterway, which comprises a water inlet and an air inlet, the water inlet is connected with a pre-filter element, the pre-filter element is connected with a first water inlet valve and a second water inlet valve, the first water inlet valve is connected with a booster pump, the second water inlet valve is connected with a pressure stabilizing valve which is connected with an air and water inlet module, the air and water inlet module is provided with a first water inlet joint, a first air inlet joint and a first water outlet joint, the air inlet is connected with an air inlet valve which is connected with the first air inlet joint, the first water outlet joint is connected with the booster pump, the booster pump is connected with a reverse osmosis membrane filter element, the reverse osmosis membrane filter element is provided with a second water inlet joint, a pure water joint and a waste water joint, the pure water joint is connected with a post-filter element which is connected with a pure water valve and a pure water outlet, the waste water joint is connected with a waste water valve and a bubble water mixing module, the waste water valve is connected with a waste water outlet, the bubble water mixing module is provided with a third water inlet joint and a bubble water joint, the bubble water joint is connected with a bubble water valve, and the bubble water valve is connected with a bubble water outlet.

The utility model discloses a heat exchange tube structure of an organic silicon fluidized bed reactor, and relates to the technical field of fluidized bed heat exchange tubes. According to the heat exchange tube structure of the organic silicon fluidized bed reactor, heat exchange tubes are vertically arranged in the fluidized bed reactor, the end, close to the incoming material direction, of each heat exchange tube is connected with a guiding and flow dividing structure, and the outer surfaces of the lower portions of the heat exchange tubes and the outer surfaces of the flow dividing structures are coated with abrasion-resistant coatings. The guiding and distributing structure can effectively guide material flow, change the washing direction of materials and reduce direct impact of the materials on the lower portions of the heat exchange pipes. The guiding and shunting structure is beneficial to breaking large bubbles and particle agglomerates existing in the fluidized bed, so that a better fluidized structure is realized. And the wear-resistant coating plays a role in protecting the guide shunting structure and the bottom of the heat exchange tube, so that wear is reduced.

The utility model discloses a sludge discharge structure and its integrated ultrafiltration membrane water purification equipment, including alignment device and closing device, the closing device is inserted in the bottom end of alignment device in sliding, the alignment device includes filter screen, high pressure nozzle, discharge cavity, support, accumulation cavity, hydraulic cylinder, first rack, gear and lantern ring, the discharging cavity is fixedly installed at the rear end of the top of the storage cavity, the lantern rings are fixedly installed in front of the two ends of the storage cavity, the hydraulic cylinders are fixedly installed at the two ends of the storage cavity and located behind the lantern rings, the support is fixedly installed between the two hydraulic cylinders, and the hydraulic cylinders are fixedly installed in the storage cavity. The first racks are symmetrically and fixedly installed at the front end of the support, the gears are rotatably installed at the tops of the two ends of the storage cavity and located in front of the hydraulic cylinders, and the filter screen is fixedly installed at the bottom end of the support. Through the arrangement of the alignment device and the sealing device, the purpose of removing impurities and soil on the filter screen is achieved.

This invention relates to the field of transformer transportation technology, specifically to a construction process for unloading and horizontally towing transformer equipment based on a rail sliding method. The process includes steel rails, with hydraulic rail clamps slidably fitted onto the top of the rails. Wedge-shaped clamps are symmetrically fixedly installed at the bottom of the hydraulic rail clamps. A hydraulic cylinder is fixedly installed at the rear end of the hydraulic rail clamps. A bearing device is fixedly installed at the end of the hydraulic cylinder furthest from the hydraulic rail clamp. A synchronizing rod is fixedly installed between two hydraulic rail clamps. The bearing device includes a first sliding platform and a limiting sleeve. The limiting sleeve is symmetrically fixedly installed at the bottom of the first sliding platform. Contact grooves are symmetrically formed at the bottom of the inner side of the rail. The first sliding platform also includes a guiding device, a synchronizing device, and a supporting device. The guiding device is slidably inserted into the top of the supporting device. Through the arrangement of the hydraulic rail clamps, guiding device, synchronizing device, and supporting device, the transformer achieves guided transportation, protection, and lubrication during transmission.

The application discloses a feeding machine for garment processing and relates to the technical field of garment processing equipment, which comprises a rack, a mounting bin and a power bin. The top of the rack is provided with a conveying part, a deviation rectifying part and a synchronous part. The conveying part is used for feeding and straightening cloth. The deviation rectifying part is used for flattening and tensioning the cloth. The synchronous part is used for position fine adjustment of the two ends of a cloth roll core shaft. The synchronous part is synchronously and parallelly adjusted with the deviation rectifying part, so that the deviation of the cloth roll is prevented from being aggravated due to different tensions on the two sides of the cloth while the deviation rectifying effect is ensured. The cloth flattening mechanism is provided with annular rubber strips and symmetrical arc-shaped rubber strips, so that the cloth is evenly spread on both sides in a wave-shaped manner. The problems of cloth wrinkling and stacking are solved. The spread cloth is pulled at the same time by cooperating with a cloth pushing and pulling mechanism, so that the stability of feeding is further improved.

The application discloses a medicine capsule filling structure and a use method thereof, and relates to the technical field of medicine capsule filling structures, which can keep the capsule mouth vertically downward before filling, and can push the rotating core through cooperation of the No. 2 air cylinder and the connecting shaft to rotate the rotating core in the accommodation groove of the material receiving plate to fill the medicine capsule, and can rotate the rotating core to shield and close the capsule mouth in time after filling. The medicine capsule filling structure and the use method thereof are characterized by that the accommodation groove is formed in the material receiving plate, the accommodation groove is in a cylindrical shape, a plurality of through holes are equidistantly formed in the top of the material receiving plate, the center line of the through hole is perpendicular to the center line of the accommodation groove, the through hole penetrates the middle part of the accommodation groove and the bottom of the material receiving plate, the push block is arranged in the through hole through the No. 1 air cylinder and located at the bottom of the material receiving plate, the middle part of the top surface of the push block is recessed to the bottom surface of the push block, and the top surface of the push block and the groove wall of the accommodation groove cooperatively form a circumferential surface.

The utility model relates to marine exhaust equipment technical field discloses a novel wet type sound attenuation exhaust pipe, including the shell, the right side of shell is provided with the stifled lid, the right side of stifled lid is provided with the mixing mechanism, the mixing mechanism is used for mixing gas and water, the inboard of shell is provided with the sound attenuation mechanism, the sound attenuation mechanism is used for the sound attenuation when gas exhaust, the mixing mechanism includes the machine case, the inner side of stifled lid is fixedly connected in the outer wall of machine case, the inboard of machine case is fixedly connected with the support ring, the inboard of support ring is fixedly connected with the air inlet pipe, the top left side of machine case is fixedly connected with the hinge. In the utility model, the air inlet pipe provides the gas source, the exhaust baffle opens the exhaust when the air pressure is too large, balances the air pressure, the water inlet pipe leads the water into the machine case, makes the gas and water fully act, improves the purification effect, avoids the local airflow disorder to produce the noise again, effectively reaches the ideal sound attenuation and purification effect.

A belt conveyor system based on dynamic coal quantity data, which uses the detected current dynamic load q of coal accumulated on the current belt conveyor. 实本 The bulk density of the coal is calculated from the dynamic volume information of this level; based on the detected dynamic volume information of the coal on the next lower-level belt conveyor and the bulk density, the current dynamic load q of the coal arriving on the next lower-level belt conveyor is calculated. 实下 Calculate the real-time dynamic load q on the belt of this level of belt conveyor. 动本 The real-time dynamic load q 动本 With the rated q of this level of belt conveyor G By comparison, a corresponding dynamic acceleration value 'a' is selected to control the output acceleration curve of the variable frequency speed control drive device, so that the belt conveyor gradually accelerates from a stationary state to the rated belt speed. This application also provides a belt conveyor group conveying method based on dynamic coal quantity data.

The utility model relates to a large dip angle square bale pick-up stacker crane, which comprises a chassis device, and a walking mechanism, a large dip angle pick-up device, a power device, an overturning platform and a loading platform which are arranged on the chassis device, the walking mechanism is arranged at the bottom of the chassis device, and the large dip angle pick-up device is arranged at the front end of the chassis device; square bales are conveyed between the large-dip-angle pickup plate and the overturning platform through a chain conveying device, the tail end of the large-dip-angle pickup plate is connected with the overturning platform, the tail end of the overturning platform is hinged to the chassis device, and the overturning platform overturns the square bales and conveys the square bales to the loading platform; the square bale stacking machine has the advantages that automatic picking, concentrated loading and stacking of square bales are achieved, the allocation time between cooperative work is saved, the stacking mechanization degree of the square bales is improved, the labor cost is saved, and the production efficiency is improved.

The utility model discloses a water tank template with good distortion resistance, which comprises a main plate body, the peripheral side edge of the main plate body is provided with a frame extending towards the same side surface of the main plate body, and the main plate body is provided with a plurality of X-shaped reinforcing grooves or cross-shaped reinforcing grooves at intervals along the longitudinal length direction. The main plate body is further provided with a plurality of first transverse reinforcing grooves used for separating every two adjacent X-shaped reinforcing grooves or cross-shaped reinforcing grooves. The X-shaped reinforcing grooves or the cross-shaped reinforcing grooves and the first transverse reinforcing grooves which are alternately formed in the main plate body in the longitudinal length direction are staggered, complemented and reinforced, so that the stress balance performance, the external force impact resistance and the distortion resistance of the water tank template when the water tank template bears external water pressure or buried soil pressure are remarkably improved; the problem that a traditional water tank formwork is prone to local deformation when bearing water pressure or buried soil pressure is solved. The water tank formwork is formed by the same metal plate in a mold pressing and stretching mode, no welding joints exist on the whole, corrosion resistance is good, and the service life of the metal plate assembly type water tank can be greatly prolonged.

The utility model discloses an efficient raw material grinding device for food processing, which belongs to the technical field of food processing and comprises a grinding machine case, a dispersing box is fixedly mounted at the bottom of the grinding machine case, a feeding pipe is fixedly mounted on the top surface of the grinding machine case, and an observation window is mounted on the outer surface of the grinding machine case in an embedded manner. A base is fixedly installed at the bottom of the dispersing box, electric heating pipes are arranged in shell cavities of the grinding machine box and the dispersing box, and a grinding assembly is arranged in the grinding machine box; according to the grinding and dispersing device, the grinding assembly and the grinding and dispersing assembly are arranged in a matched mode, through the design, grinding materials can be dried and ground, meanwhile, the grinding materials can be effectively dispersed, and the problem that raw materials are affected with damp, agglomerate and are not prone to being ground can be effectively solved; and meanwhile, the fineness of the ground raw materials can be effectively improved, the quality of the ground raw materials is improved, and the using effect of the whole equipment is good.

The invention discloses an ionic rare earth concentrate acid leaching optimization process. The process comprises the following steps: acid leaching, adding barium chloride to generate barium sulfate precipitate, adding solid sodium carbonate, filtering to obtain insoluble residues and barium chloride radium feed liquid, extracting leachate to recover thorium, and the like. The method has the advantages that main radioactive elements, namely thorium and radium, in the acid-soluble slag generated in the original process can be separated and enriched in the previous acid-soluble slag and the primary barium sulfate slag, the previous acid-soluble slag and the primary barium sulfate slag are subjected to specific treatment, and the total amount of radioactive solid waste is reduced.

The utility model relates to battery technical field discloses a cover plate, electric core and battery package, the utility model discloses a cover plate includes cover plate body, first insulating piece and pole. The positioning portion abuts the positioning groove, and the wide side of the bottom plate is spaced apart with the horizontal protruding portion adjacent to the bottom plate. The cover plate of this structure is provided with the positioning portion in the middle region of the length direction of the horizontal protruding portion, and the positioning portions on both sides of the length direction of the pole bottom plate abut the positioning groove respectively to limit the wide side of the bottom plate, and the positioning portion extends a distance towards the bottom plate, so that the wide side of the bottom plate is spaced apart with the horizontal protruding portion, the spacing of the horizontal protruding portion and the wide side of the bottom plate is increased, the electrolyte can flow out from the big gap between the two, can prevent the electrolyte to accumulate between the bottom plate and the horizontal protruding portion, thereby can prevent the electrolyte and the pole piece from happening chemical reaction and generating granular object, avoid granular object to increase the on-pole and cover plate body, can guarantee the performance of electric core.

The application discloses a feeding device for a centerless grinding machine, which comprises a base, a moving plate slidingly arranged on the base through a guide component, a discharging assembly and a feeding assembly fixedly installed on the moving plate, a moving driving element arranged on the moving plate, a connecting table arranged on one side of the base, and one end of the moving driving element connected to the connecting table; the moving driving element is an electric cylinder; through the arrangement of the moving driving element and the guide component, the movement of the moving plate can be accurately controlled through the electric cylinder, the relative position of the feeding device and the centerless grinding machine is adjusted, the feeding position of the centerless grinding machine is efficiently adjusted, and the machining efficiency and the workpiece quality of the centerless grinding machine are improved.

This utility model relates to the technical field of raw material screening equipment, and particularly to screening equipment for concrete construction raw materials. It includes a screening bin, a protective shell, a vibrating motor, a feeding port, a discharge port, a screening plate, a fixed frame, connecting springs, fixed rods, cleaning rods, a drive motor, a screening auger, a fixed cylinder, a feed inlet, a discharge rack, a drive assembly, a mixing assembly, a connecting assembly, and a cleaning assembly. A drive motor is installed above the screening bin, and a screening auger is installed at the output end of the drive motor. The screening auger is located inside the fixed cylinder, with a feed inlet on the bottom inner wall of the fixed cylinder and a discharge rack on the side wall of the fixed cylinder. During use, multiple sets of cleaning rods are inserted into the screening holes of the screening plate to effectively prevent sand and gravel from clogging the screening plate. After screening, the sand and gravel roll into the fixed cylinder due to the tilt of the screening plate. Then, the drive motor is started to rotate the screening auger, transporting the sand and gravel to the discharge rack for discharge, thus achieving efficient and continuous screening operations.

The application belongs to the technical field of cleaning equipment, and particularly relates to a cup cleaning equipment. The cup cleaning equipment is characterized in that a cup placing table with a gradually downward recess is arranged on a cleaning table, a waste liquid discharge port is arranged at the lower end of the cup placing table, and a flushing piece protruding from the liquid outlet end is arranged through the cup placing table. In use, a user only needs to place the cup mouth of the cup on the cup placing table, and the flushing piece can spray cleaning liquid upward to clean and flush the residues in the cup. At the same time, the waste liquid containing residues such as solids formed in the cup can flow downward along the cup wall and flow to the waste liquid discharge port along the cup placing table arranged in an inclined manner, so that the problems of residue cleaning, poor cleaning convenience and low cleaning efficiency of the current overturning cleaning equipment can be effectively solved.

This utility model discloses an adjustable flow bottle cap, including a cap body. A baffle is provided in the inner cavity of the cap body. A central post extending upwards integrally is provided at the center of the upper surface of the baffle, and at least one first through hole is formed on the baffle. A rotatable rotating cap is detachably fitted onto the central post. A sealing plate is provided at the lower end of the rotating cap. The sealing plate is in contact with the upper surface of the baffle, and at least one second through hole selectively communicating with the first through hole is formed at a corresponding position on the sealing plate. By rotating the rotating cap, the sealing plate can be rotated relative to the baffle, thereby aligning or interleaving the second through hole with the first through hole, thus regulating the flow rate through the bottle cap. This utility model has the advantages of simple structure, reliable sealing, and easy disassembly.

The utility model discloses a deburring device for injection molded parts, which comprises a device base, a limiting ball arranged above the device base, an adjusting mechanism arranged between the device base and the limiting ball, and a spray gun mechanism arranged above the limiting ball. According to the utility model, the limiting ball is rotated to turn over the injection molding part so as to realize all-directional deburring, clamping is not needed in the turning process, the situation that the adaptive range of a clamping device is small is avoided, air flow and burrs in the deburring process can be discharged out of the limiting ball in time through the vent holes, the situation that burr wastes are accumulated in the limiting ball is avoided, and the deburring efficiency is improved. Dry ice particles are sprayed to the surface of a workpiece through the spray gun, burrs are removed through sublimation expansion force and impact force of dry ice, the surface of the workpiece cannot be scratched or damaged when the burrs are removed through the dry ice, the dry ice becomes gas after sublimation, no pollutant is left, and the device is suitable for deburring of workpieces of various materials and shapes. And the spraying direction of the high-pressure gas can be continuously changed by rotating the nozzle.

The utility model relates to a kind of upper spreading material valve of convenient blanking, including valve body, valve seat, valve core and the valve stem being connected with valve core, the valve seat has feed inlet, the valve body is fixedly connected with valve seat, and sealing element is clamped between valve body and valve seat at feed inlet, the valve core is abutted with sealing element, it is characterized by: the upper end of the valve stem is rotatably connected with valve stem, counterweight is arranged in one side in the valve core, the valve stem includes main valve stem, first valve stem and second valve stem, the first valve stem is rotatably connected with valve core, the upper end of second valve stem is rotatably connected with the lower end of first valve stem, the lower end of second valve stem is rotatably connected with the upper end of main valve stem, sleeve is arranged in the valve body, the first valve stem, second valve stem and main valve stem all extend into sleeve, the upper end of first valve stem extends to outside sleeve, the utility model can widen the width of discharging channel when upper spreading material valve discharges, improve discharging speed.

The pot cover assembly comprises a surface cover and a panel pasting film, the panel pasting film is pasted and fixed to the upper surface of the surface cover, the upper surface of the surface cover is provided with an air outlet and an installation position used for installing a display assembly, and the upper surface of the surface cover is further provided with a flow guide hole and a sealing groove. The flow guide hole surrounds at least part of the periphery of the air outlet, a sealing piece is arranged in the sealing groove and located between the flow guide hole and the installation position, and an opening corresponding to the air outlet is formed in the panel pasting film. Therefore, steam can reach the lower portion of the surface cover through the flow guide hole and is finally discharged to the outside through the gap of the pot cover assembly without large-scale diffusion between the panel pasting film and the surface cover, and therefore large-area separation of the panel pasting film and the surface cover is effectively avoided, and pasting stability of the panel pasting film is guaranteed. In addition, a sealing piece is arranged in the sealing groove, and the sealing piece abuts against the panel pasting film to form sealing, so that the steam is blocked by the sealing piece and cannot continue to diffuse and flow towards the installation position.

This invention relates to the field of diversion channel technology, specifically a flood control and flood prevention dam diversion channel, comprising a dam, on which a diversion channel is provided. A hinge block is fixedly provided at the downstream end of the dam, and a support block is fixedly provided at the upstream end of the dam. A guide rod is fixedly provided at the lower end of the support block, and two support blocks are distributed on both sides of a diversion channel as a group. Hydraulic rods are hinged to both sides inside the diversion channel. Under the action of the hydraulic rods, the gate is rotated downstream to open the gate. At this time, as the gate rotates, the fork frame will rotate. The connecting cylinder on the fork frame is inserted into the smooth connecting frame of the garbage baffle. Therefore, as the gate opens, the garbage baffle will move downward, so that the part with the water passage hole is inserted into the water, thereby blocking the garbage from upstream and preventing it from flowing downstream with the water.

The application discloses a control method of a washing equipment and the washing equipment, and the washing equipment comprises a barrel for containing laundry and an intermittent dehydration program for controlling the barrel to rotate according to a set rotation-stop time sequence. During the intermittent dehydration, the actual rotating speed of the barrel in the rotating process is acquired, and the subsequent rotation-stop time sequence is adjusted according to the acquired actual rotating speed. In the application, the actual rotating speed of the barrel is acquired, so that the actual load in the barrel can be reflected. When the actual rotating speed is small, it indicates that the actual load in the barrel is large, and further indicates that a large amount of washing water which is not discharged in time is accumulated in the barrel. The subsequent rotation-stop time sequence of the barrel is adjusted according to the acquired actual rotating speed, so that the accumulated washing water can be discharged in time, the load in the barrel is reduced, and the phenomenon that the motor driving the barrel to rotate is heated and suddenly stopped is avoided. The washing equipment adopting the control method of the application is not easy to heat the motor during the dehydration process, and the dehydration effect is good.

The invention discloses a mining machinery ore cleaning mechanism which comprises a base, a supporting plate is slidably installed on the base, a first supporting ring and a second supporting ring are fixedly installed on the supporting plate, a cleaning roller is rotatably installed between the first supporting ring and the second supporting ring, and the outer surface of the cleaning roller is fixedly sleeved with a gear ring. A servo motor is arranged on the supporting plate, during cleaning operation, the servo motor is started, the driving gear is driven to rotate through the servo motor, and the cleaning roller is driven to stably rotate on the first supporting ring and the second supporting ring through meshing transmission of the driving gear and the gear ring, so that ore continuously rolls in the roller and is in full contact with water flow; and meanwhile, the cleaning water pipe sprays high-pressure water flow into the roller through the wide-angle spray head, all-directional scouring is conducted on the surface of the rolling ore, sewage is discharged in time in cooperation with the drainage holes, efficient and continuous cleaning of the ore is achieved, and the cleaning effect is uniform and thorough.

This invention discloses a method for smelting alloy steel, comprising: selecting scrap steel that meets the addition conditions as additive, wherein the types of elements included in the scrap steel are within the range of types of elements included in the molten steel; determining the maximum amount of additive to be added based on the total amount of molten steel; adding a set amount of additive to the molten steel, wherein the set amount is less than or equal to the maximum amount to be added; determining the temperature drop of the molten steel based on the set amount and the total amount of molten steel, and performing temperature compensation on the molten steel; detecting the content of each element in the molten steel, and performing compensation treatment on the molten steel based on the detection results. This method avoids the waste of alloy resources, effectively recovers and utilizes high-value alloy elements in scrap steel, and significantly reduces alloy costs. Furthermore, it reduces production capacity loss, as scrap steel is directly melted into molten steel, increasing steel production and improving single-furnace capacity and continuous casting efficiency. It avoids the additional costs and environmental burden caused by scrap steel stockpiling, transportation, and treatment as ordinary scrap steel.

The application provides a control method and system for preventing coal powder return of a coal feeder and the coal feeder. The method comprises the following steps: performing a power-on operation on a body of the coal feeder, causing the coal powder to be adsorbed on a first position of the body where the power-on operation is performed; forming a conductive loop between the coal powder and the first position according to the first position; determining a current of the loop according to the conductive loop; and performing a power-off operation on the body when the current of the loop reaches a current threshold, thereby preventing the coal powder return of the coal feeder. The current between the coal powder and the first position of the body of the coal feeder is monitored, the coal feeder is prevented from storing excessive coal powder, and a spontaneous combustion accident of the coal powder in the coal feeder is prevented. The method has the characteristics of high sensitivity and strong stability, and maximally improves the safety of a power plant device.

The utility model belongs to the oil fume purifier technical field especially, is an oil fume purifier of oil -water separation, including the shell body, the separation bin of being located in the shell body, electric field subassembly and support mechanism, the side of shell body is equipped with the dismounting opening for dismounting electric field subassembly, the position of shell body side corresponds the electric control box that has hinged to the dismounting opening, the support mechanism includes: the sheet metal support that is fixed in the separation bin and is located on the sheet metal support sheet metal support plate, wherein, the sheet metal support plate is equipped with the oil -leading structure for guiding the flow of oil dirt, electric field subassembly can pull formula set up on sheet metal support plate, in the utility model, the oil -leading structure of support mechanism can quickly lead out the oil dirt, avoids the contact part of electric field subassembly and support structure to deposit, ensures that electric field subassembly pulls smoothly, solves the problem of jam, the cooperation of honeycomb perforation and anode cylinder makes the airflow distribution more even, and oil fume particle capture rate is high, and separation efficiency is high.