40results about How to "Avoid environmental pollution" patented technology

The utility model relates to the technical field of slag powder production, and discloses a coarse sand screening device for granulated blast furnace slag powder production, which comprises a base, an obliquely arranged screening shell is arranged above the base, a grading screening net is fixedly arranged in the screening shell, and a first collecting hopper and a second collecting hopper are fixedly arranged at the bottom of the screening shell. Discharging hoppers are fixedly arranged at the bottom of the first collecting hopper and the bottom of the second collecting hopper correspondingly, the first collecting hopper and the second collecting hopper are elastically and movably connected with the base, vibration motors are fixedly arranged on the side wall of the first collecting hopper and the side wall of the second collecting hopper correspondingly, and a feeding pipe is fixedly arranged on one side of the top of the screening shell. A slag discharging pipe is fixedly arranged on one side of the bottom of the screening shell, and a switch valve is arranged on the pipe wall of the slag discharging pipe. A closed screening structure is adopted, the phenomenon that dust is exposed and pollutes the environment is avoided, the safety of people is guaranteed, meanwhile, the grading screening efficiency is high, and the production efficiency is improved.

The invention relates to the technical field of waste liquid treatment, in particular to a chemical waste liquid recycling process information digital management method and system. The method comprises the following steps: collecting parameters of the chemical waste liquid recovery equipment by using an automatic sampler, and storing parameter information of the chemical waste liquid recovery equipment; according to the parameter information of the chemical waste liquid recovery equipment, using computer-aided engineering software to construct a chemical waste liquid treatment digital three-dimensional model; acquiring chemical waste liquid characteristic data, inputting the chemical waste liquid characteristic data into the chemical waste liquid treatment digital three-dimensional model, simulating a waste liquid recovery treatment process by utilizing simulation software, and performing waste liquid recovery result quantitative evaluation on the simulation process to obtain a treatment process evaluation result; and judging whether the waste liquid recovery treatment process meets a preset treatment standard or not according to the treatment process evaluation result. Based on the waste liquid treatment technology, efficient management and abnormity monitoring of the chemical waste liquid recovery treatment process are achieved.

The invention discloses a multifunctional multi-rotor unmanned aerial vehicle, and belongs to the technical field of unmanned aerial vehicles, the multifunctional multi-rotor unmanned aerial vehicle comprises a vehicle body, supporting frames are fixedly connected to the two sides of the vehicle body, two supporting rods are fixedly connected between the two supporting frames, and a supporting plate is fixedly connected between the two supporting rods; a fixing assembly is fixedly connected to the other side of the upper surface of the supporting plate, a shooting assembly is fixedly connected to one side of the lower surface of the machine body, a storage battery is fixedly connected to one side of the lower surface of the machine body, and a cooling assembly is arranged on the surface of the storage battery. By arranging the fixing assembly, the device can adapt to various transportation requirements, the practicability and universality of the device are improved, by arranging the shooting assembly, the accuracy and safety of operation are improved, by arranging the cooling assembly, the device can effectively reduce the working temperature of the storage battery, and performance reduction caused by overheating is prevented; and by arranging the buffer assembly, the durability and the service life of the unmanned aerial vehicle are improved.

The present application belongs to the technical field of tobacco, and in particular, relates to a method and device for improving the comfort of aged tobacco. The method for improving the comfort of aged tobacco of the present application comprises: mixing a formic acid-ethanol aqueous solution with tobacco leaves having a water content of 10% to 15% for acidolysis reaction to obtain acidolysis-treated tobacco leaves; subjecting the acidolysis-treated tobacco leaves to ultraviolet radiation treatment to obtain tobacco leaves treated by acidolysis and ultraviolet radiation of a formic acid-ethanol aqueous solution; and balancing the moisture content of the synergistically treated tobacco leaves. The present application provides a method and device for improving the comfort of aged tobacco, which can appropriately reduce the strength and concentration by reducing the starch, protein and free nicotine content while maintaining the flavor style of tobacco leaves unchanged, and significantly reduce the irritation to the oral cavity, throat and nasal cavity, thereby quickly and significantly improving the comfort of tobacco leaf smoking, and effectively solving the technical defects of the existing methods for improving the comfort of aged tobacco, such as long processing time, treating the symptoms but not the root cause, and unknown and complex components of combustion products.

The utility model relates to a kind of vertical screw material cutting door mechanisms, including first pusher, the discharge pipe of the first pusher acting end, the material pipe being communicated with the discharge pipe, the moving piece of moving material evenly and the sealing piece of sealing or opening the discharge pipe;Discharge groove is opened in the discharge pipe;One end of the material pipe is communicated with the discharge groove, and other end is connected with bunker;The moving piece rotates in the discharge pipe;The bottom of the discharge groove is open in shape;The sealing piece is arranged on the discharge pipe, and the acting end of the sealing piece corresponds with the bottom of the discharge pipe.Solved movable gate by manual operation, its opening degree is controlled depending on operator experience, not only labor intensity is big, and discharge speed and flow are difficult to accurately control, it is extremely easy to lead to powder uneven discharge, affect the precision and efficiency of material packaging.

This utility model discloses a wear-resistant trolley funnel liner. The liner includes a base layer and a weld overlay layer. The weld overlay layer is welded to the surface of the base layer. The base layer and the weld overlay layer are formed into an integral structure using a multi-layer weld overlay process. Each weld overlay layer is tightly bonded to the adjacent layer and the base layer, forming a continuous and dense composite structure. The base layer is made of low-carbon steel to ensure that the liner has sufficient strength and toughness to withstand material impact. The weld overlay layer is made of chromium carbide alloy to provide good wear resistance. The low-carbon steel of the base layer has good toughness and can absorb and disperse impact energy; while the chromium carbide alloy layer of the weld overlay layer has high hardness and can resist direct impact and wear from materials. This greatly enhances the impact resistance of the liner, reduces deformation and cracking caused by material impact, ensures the normal use of the funnel, and avoids environmental pollution and material waste caused by material leakage.

The utility model relates to aquatic culture technical field especially relates to an aquatic culture water circulation device. Its technical scheme includes: frame, filter box no.

The utility model relates to the technical field of pipes, and discloses a corrosion-resistant nickel alloy pipe which comprises a pipe body, and installation plates are installed at the two ends of the pipe body. A nickel alloy layer is arranged in the pipe body, and a heat preservation layer is arranged on the outer layer of the nickel alloy layer. The protective layer is made of PVC materials and protects the surface of the pipe body, the anti-corrosion paint can improve the corrosion resistance of the surface of the pipe body and prevent the surface of the pipe body from being corroded by rainwater, and therefore the service life is prolonged, the heat preservation layer is filled with the glass wool, heat preservation can be conducted on the pipe body, heat dissipation is reduced, and the ceramic layer is provided with a smooth surface, so that the service life is prolonged. Therefore, when fluid flows in the pipeline, impurities are not easy to attach, cleaning is convenient, high-temperature environment can be borne, heat stability is good, various chemical media can be resisted, corrosion of various corrosive chemical substances such as acid, alkali and salt can be resisted, the pipe body is prevented from being corroded and perforated under the condition, normal production and operation are not affected, and the service life of the pipeline is prolonged. And safety accidents and environmental pollution are prevented.

This utility model discloses a quick-installation glass-lined agitator impeller assembly, relating to the field of agitator impeller technology. The quick-installation glass-lined agitator impeller assembly includes an agitator shaft with a positioning groove at its bottom. A sealing structure is mounted on the agitator shaft and includes an mounting ring, a mounting cylinder, and a sealing top cover. The mounting ring is fixedly fitted onto the outer surface of the agitator shaft. The sealing top cover's inner top wall fits against the top of the mounting ring, and its inner wall fits against the outer surface of the mounting ring, directly sealing the assembly gap between the mounting ring and the top of the mounting cylinder, preventing media leakage from the top. Furthermore, the sealing bottom plate, through a threaded ring and threaded groove, prevents media leakage from the bottom bolt connection area, avoiding material loss caused by reaction medium leakage, preventing equipment corrosion and environmental pollution caused by corrosive media leakage, and thus improving the service life of the impeller assembly.

The embodiment of the invention relates to the technical field of hazardous chemical substance production, in particular to a hazardous chemical substance production workshop relocation method based on Beidou grid position codes, and the method comprises the steps: carrying out the grid division of an old hazardous chemical substance production workshop, and endowing each old grid unit with an old Beidou grid position code; determining an old grid unit in which each device falls, and marking the corresponding old Beidou grid position code to the corresponding device; performing same-level grid division on the new hazardous chemical substance production workshop, and endowing each new grid unit with a new Beidou grid position code; based on the layout of each device in the old grid map, determining the layout of each device in the new grid map; all the devices are carried to a new hazardous chemical substance production workshop to be unpacked and installed, all the devices are subjected to operation testing, and under the condition that all the devices pass the operation testing, it is confirmed that moving of the hazardous chemical substance production workshop is completed. By means of the method, rapid, accurate, low-cost and planned relocation of the hazardous chemical substance production workshop can be well achieved.

The present invention provides a thermal runaway flue gas treatment apparatus for battery, a treatment method, a battery group, and a battery pack, mainly solving the problem that existing treatment manners for thermal runaway flue gas in a battery are not thorough, have potential safety hazards, and pollute the environment. In the apparatus of the present invention, the thermal runaway flue gas generated by thermal runaway in the battery is ignited and combusted to treat combustible components in the thermal runaway flue gas, so that the combusted gas may not be ignited again, thereby fundamentally achieving the purpose of safety, while avoiding environmental pollution.

This invention discloses a method for preparing an in-situ reinforced single-atom nanoenzyme bactericidal composite material for concrete. The method includes using sodium ferric ethylenediaminetetraacetate (EDTA) as a core precursor, and encapsulating calcium peroxide on its surface through an in-situ reaction to form a composite precursor of calcium peroxide encapsulating EDTA; directional hydrolysis of tetraethyl orthosilicate (TEOS) to form a thin layer of silica on the surface of the composite precursor; subsequent calcination under an inert gas to obtain a three-layer core-shell composite material of single-atom iron nanoenzyme / porous calcium peroxide / porous silica; and finally, grafting with aminosilane to obtain a three-layer core-shell composite material of single-atom iron nanoenzyme / porous calcium peroxide / porous silica with surface-grafted aminosilane. The composite material prepared by this method can achieve continuous and efficient bactericidal action in concrete while increasing nucleation sites, promoting hydration, and effectively improving the early strength and durability of concrete.

The utility model provides a combined structure of terminal marking strips, which comprises a plurality of terminal marking strips and two side strips, the two side strips respectively comprise a first side strip and a second side strip, one end of each terminal marking strip is directly or indirectly connected with the first side strip, and the other end of each terminal marking strip is directly or indirectly connected with the second side strip. And the other ends of the plurality of terminal marking strips are directly or indirectly connected with the second side strip respectively. Therefore, according to the combined structure of the terminal marking strip, the marking efficiency of the wiring terminal can be improved, the marking cost is reduced, and the environmental pollution is reduced.

This utility model relates to a cooling mechanism for the slide rail of a gantry machine tool, including a slide saddle, a slide ram, and a cooling assembly. The slide ram moves up and down within the inner cavity of the slide saddle via a drive mechanism, and the guide rail surface of the slide ram contacts the inner cavity of the slide saddle. The cooling assembly includes cooling plates for cooling the guide rails at the four corners of the slide saddle and a cooling machine for supplying coolant to the cooling plates through a pipe assembly. This utility model relates to the field of gantry machine tool technology. This gantry machine tool slide rail cooling mechanism has a cooling system fixed on both sides of the slide saddle. The cooling system consists of cooling plates, pipes, connectors, etc. The entire cooling system is supplied with coolant by the cooling machine. The coolant circulates through pipes into the circulation groove of the cooling plates and finally flows back to the cooling machine, forming a circulating cooling system for the slide saddle and slide ram guide rails. This reduces the thermal deformation of the slide saddle and slide ram, thereby improving the machining accuracy of the machine tool.

The utility model relates to a system for efficiently recovering gold, silver and copper from complex gold ore gold extraction tailing broken carbon, which comprises a ball mill, and an ore pulp pump and a grading cyclone which are sequentially connected with the ball mill, and an overflow port of the grading cyclone is sequentially connected with a medicament stirring barrel, a flotation system and a 1 # filter; a filter residue opening of the 1 # filter is sequentially connected with a novel ashing roasting furnace, a reduction smelting furnace, a copper-silver leaching stirring tank and a 2 # filter, a filtrate opening of the 2 # filter is sequentially connected with a silver chloride precipitation stirring tank and a 3 # filter, a filtrate opening of the 3 # filter is sequentially connected with a copper replacement stirring tank and a 4 # filter, and a filter residue opening of the 3 # filter is sequentially connected with a silver replacement stirring tank and a 5 # filter. Flotation equipment, ashing roasting equipment, reduction smelting equipment, selective leaching equipment and the like are ingeniously combined to form a complete complex gold ore gold extraction tailing broken carbon recovery system, and meanwhile, proper technological parameters are matched, so that high-efficiency recovery of valuable metals such as gold, silver and copper in complex broken carbon with high copper, high iron, high calcium and the like is achieved.

This application provides a flash evaporation system for separating DMAC and acetic acid, connected between a feed tank and a distillation column. The system includes a high-pressure flash tank connected to the feed tank and a low-pressure flash tank connected in series with the high-pressure flash tank. Both the high-pressure and low-pressure flash tanks are provided with an inlet, a vapor phase outlet, and a liquid phase outlet. The liquid phase outlet of the high-pressure flash tank is connected to the inlet of the low-pressure flash tank via a pressure reducing valve, and the liquid phase outlet of the low-pressure flash tank is connected to the inlet of the distillation column. A preheater is connected between the outlet of the feed tank and the inlet of the high-pressure flash tank. The vapor phase outlets of both the high-pressure and low-pressure flash tanks are connected to a condenser. This flash evaporation system, by employing a series connection of a high-pressure and a low-pressure flash tank for two-stage pressure-reducing flash evaporation of the mixture, achieves efficient pre-separation, reduces the load on the distillation column, and improves overall separation efficiency.

The utility model discloses a fuel gas mold temperature controller with high safety, and relates to the technical field of mold temperature controllers, the fuel gas mold temperature controller comprises a mold temperature controller shell, a delivery pipe, a combustion chamber, a hot oil chamber and a heat recovery box, the top of the heat recovery box is provided with an adsorption pump, the gas inlet end of the adsorption pump is provided with a gas inlet pipe, the gas outlet end of the adsorption pump is provided with a gas outlet pipe; an exhaust hole is formed in the top of the heat recovery box, a branch pipe is fixedly installed on the outer wall of the conveying pipe, and electromagnetic valves are installed at the two ends of the branch pipe. The heat recovery mechanism is installed, media are added into the branch pipe and the hot oil cavity through the oil supply pump, hot air in the combustion cavity is conveyed into the heat recovery box through the air outlet pipe, and the heat conduction media in the branch pipe are heated through the hot air; and the medium heated by the branch pipe is conveniently added when a new medium needs to be added in the hot oil cavity subsequently, so that the subsequent heating time is shortened, meanwhile, heat can be recycled, and energy waste is avoided.

The utility model relates to the technical field of crude oil stirring tanks, and discloses a crude oil stirring tank which comprises a stirring tank body, a motor is fixedly connected to the bottom of the stirring tank body, a stirring paddle is fixedly connected to the output end of the motor, a tank cover is rotatably connected to the top of the stirring tank body, and a feeding pipe is fixedly connected to the top of the stirring tank body. A discharging pipe is fixedly connected to the side wall of the stirring tank, a filter screen is arranged on the side wall of the discharging pipe, a non-return assembly is arranged at the top of the feeding pipe, and a dismounting assembly is arranged at one end of the discharging pipe; the non-return assembly comprises a rubber plug. According to the utility model, when the crude oil normally flows from top to bottom, the crude oil drives the rubber plug to displace and then drives the limiting column to move, so that the spring I is compressed, the limiting column and the rubber plug are separated from the interior of the feeding hole, and the crude oil enters the stirring tank to be stirred, so that under the condition of pressure fluctuation in the stirring tank or change of an external environment, the stirring effect is improved. And a good sealing effect can be kept, and the sealing performance is improved.

The utility model relates to the technical field of traditional Chinese medicine decoction piece processing equipment, in particular to traditional Chinese medicine decoction piece processing equipment with a drying function, which comprises a drying box, a plurality of electric heating pieces are fixedly assembled on the inner wall of the drying box, an air pump is fixedly assembled on the outer wall of the drying box, the exhaust end of the air pump is fixedly communicated with an exhaust pipe, and the exhaust pipe is communicated with the drying box. A processing box is fixedly assembled on the upper surface of the drying box, the side wall of the processing box fixedly communicates with a connecting pipe, the connecting pipe communicates with the drying box, the upper surface of the processing box fixedly communicates with a round frame, and the upper surface of the round frame fixedly communicates with an extension pipe. According to the traditional Chinese medicine decoction piece drying box, by arranging the filter plate, the filter element and other components, when traditional Chinese medicine decoction pieces are dried, the filter plate can block particulate matter with large size in air, the filter element can adsorb and filter fine particulate matter in the air, the filtering effect is guaranteed, the situation that the particulate matter pollutes the environment is prevented, and the practicability of the drying box is improved.

The utility model discloses an energy -saving type excrement dry -wet mixed auger, including conveying assembly, the feed assembly of intercommunication in conveying assembly left side, the outlet assembly of intercommunication in conveying assembly bottom right side, the right side fixed connection of conveying assembly top has the oscillation mechanism, the oscillation mechanism includes three -phase asynchronous motor, the output fixed connection of three -phase asynchronous motor has double -end cam, the front and back of double -end cam all is provided with the push board, the left side fixed connection of push board bottom has the limit rod, the bottom of limit rod and conveying assembly sliding connection, the right side fixed connection of push board has the elbow board, both sides of elbow board inboard all fixed connection has the spring. The utility model discloses auger changed the phenomenon that the traditional need greater power will the piled excrement to the outlet assembly, adopted L type ram to carry out the oscillation treatment to the outlet assembly, just will not too much consume energy, also will not increase the cost of energy, even more will not influence the concept of energy -conserving and environment -protecting.

The tannery wastewater neutralizing device comprises a neutralizing barrel and a double-end motor, the double-end motor is installed at one end of the neutralizing barrel, a discharging pipe is arranged at the lower end of the other end of the neutralizing barrel, a stirring rod is fixedly connected to the tail end of an output shaft of the double-end motor, and the stirring rod is fixedly connected with the neutralizing barrel. A transmission ring is movably installed on the outer wall of the end, close to the double-end motor, of the neutralizing barrel, fan blades are fixedly connected to the outer wall of the transmission ring, an air outlet pipe is installed at the upper end of the neutralizing barrel in a penetrating mode, activated carbon cotton is movably connected to the inner wall of the air outlet pipe, and an exhaust pipe is fixed to the upper end of the side of the air outlet pipe in a penetrating mode; the outer wall of the upper end of the air outlet pipe is sleeved with an end cover, a sealing gasket adheres to the inner wall of the end cover, and a sealing mechanism is arranged on the outer wall of the air outlet pipe below the exhaust pipe. The tannery wastewater neutralizing device is convenient for treating neutralized waste gas, so that the phenomenon that the waste gas pollutes the environment is avoided, and the environmental protection property of the device is improved.

The present application relates to a kind of exchange litter assembly, rearing assembly and mouse rearing system, exchange litter assembly includes platform unit, limiting unit, several pull unit, several scraping unit, discharge unit, several feeding unit and several control unit.Its advantages are, using the cooperation between platform unit and limiting unit can limit rearing cage in exchange litter assembly, to improve the stability after rearing cage placement, facilitate subsequent operation;Using the cooperation between pull unit, closed unit and separation unit can lift the mouse inside rearing cage, so that mouse and the litter inside rearing cage are separated, so as to replace using external container to temporarily place mouse, avoid opening rearing cage cover and mouse escape risk;Using the cooperation between scraping unit and discharge unit can scrape the litter inside rearing cage, instead of using shovel operation, improve operation convenience.

The utility model relates to the technical field of liquid storage tanks, and discloses a liquid storage tank internal data acquisition device which is provided with a material taking device and a fixing assembly, the material taking device is used for sampling liquid in a tank body, and the fixing assembly is used for sealing the tank body. The problems that in the prior art, most of the sampling valves are adopted for liquid sampling, but some defects and potential safety hazards exist in the method, firstly, liquid needs to flow in the sampling process, liquid level changes are caused in the flowing process, and therefore accurate measurement of the liquid level is affected, and secondly, the sampling valves are installed on the outer side of a liquid storage tank, and the sampling valves are not installed on the outer side of the liquid storage tank. The problems that liquid needs to be conveyed through a long pipeline, pollution and liquid leakage may be caused by damage or leakage of a conveying pipeline, in addition, a sampling valve can open a sealing structure of a liquid storage tank, the opportunity of gas exchange between a tank body and the surrounding environment is increased, and risks and potential safety hazards may be caused are solved.

This utility model relates to the field of wind turbine technology, and in particular to a turning device for a high-speed shaft of a wind turbine. It includes a drive motor with an integrated mounting base welded to its bottom. A gearbox is located on one side of the drive motor's output end. A rotatable main shaft is inserted through the gearbox from both sides. The left end of the main shaft connects to the output end of the drive motor, and is connected to the output end of the drive motor via a coupling. A flange is fixedly fitted on the main shaft and located to the left of the gearbox. Multiple screws are mounted in a circular array on the left side of the flange. A drive gear, fitted to the left side of the flange, is fitted on the left end of the main shaft. This utility model, through multi-drive coordination, precise positioning, automatic lubrication, and recovery design, effectively solves the problems of unstable transmission, low positioning accuracy, insufficient lubrication, and poor adaptability of traditional turning devices, significantly improving the safety, efficiency, and economy of high-speed shaft maintenance for wind turbines.

The invention relates to the technical field of biological control, and discloses a bacillus velezensis P15 fruit and vegetable fresh-keeping agent based on a site competition mechanism, the active ingredient of the fresh-keeping agent is fermentation liquor of bacillus velezensis P15, the preservation number of the bacillus velezensis P15 strain is China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC NO.31995. According to the preservative and the method, the bacillus velezensis P15 fermentation liquor is used as an active ingredient, the preservative is free of pathogenicity, the product can be degraded, and the health and environmental risks of chemical preservatives are avoided; the raw materials are low-cost food-grade substances, cold chain or high-airtight packaging is not needed, spraying / soaking can be carried out, and the cost is greatly reduced; the strain inhibits pathogenic bacteria by means of site competition with the antibacterial substance, and the film-forming agent locks water and controls respiration, so that the fresh-keeping period is prolonged, the loss is reduced, and the method is suitable for various fruits and vegetables, is suitable for normal temperature and low temperature, and is simple to operate and easy to popularize.

The utility model relates to the technical field of ball nail production, in particular to a surface treatment device for ball nail production, and solves the problems that in the prior art, chippings generated during polishing are stressed and splashed out if the chippings are not intercepted and protected in time due to the influence of ball nail materials, certain potential safety hazards are brought to surrounding workers, and the production efficiency is improved. And meanwhile, certain interference is brought to the surrounding production environment. A surface treatment device for ball nail production comprises a workbench, an outer frame is fixedly connected to the top of the workbench, a polishing barrel is vertically arranged in an inner cavity of the outer frame, and the top of the polishing barrel penetrates through the top of the inner cavity of the outer frame through a shaft sleeve and extends to the position above the outer frame. The whole collecting and taking-out operation process is simple and easy to operate, potential safety hazards caused by splashing chippings to personnel are reduced, the situation that the chippings splash to pollute the environment is prevented, and sanitation of the production environment is protected.

This utility model relates to the field of paint packaging technology and discloses an improved paint packaging barrel, including a barrel body and a barrel lid. A rim is fixedly connected to the top edge of the barrel body, and a first external thread is formed on the upper surface of the rim. A first internal thread adapted to the first external thread is formed on the inner wall of the barrel lid, and the barrel lid is threadedly connected to the top of the barrel body through the mutual cooperation of the first internal thread and the first external thread. This utility model forms a gap inside the barrel body. When the barrel body is impacted, the outer shell is subjected to force first, and the gap acts as a buffer zone to avoid direct transmission of impact force, consume and disperse the impact force, reduce the risk of damage to the inner liner, prevent material waste, environmental pollution and damage to transportation equipment caused by paint leakage, and the barrel body can be quickly disassembled for classified recycling of the outer shell and inner liner, reuse of some parts, reduce material waste and reduce packaging costs.

The utility model provides a waste circuit board recovery device, which relates to the technical field of circuit board recovery, and comprises a working table, a recovery crusher body is fixedly arranged on the upper surface of the working table, and a goods outlet is arranged on the surface of the working table below the recovery crusher body. First electric telescopic rods are fixedly connected to the two ends of one side of the workbench, a fixing piece is fixedly connected to one end of each first electric telescopic rod, the loading box is integrally lifted with the help of the first electric telescopic rods, and the lifted loading box is turned over with the help of a motor and a main shaft and is in butt joint with a feeding opening of a recycling crusher body; and after the closing plate is opened, the waste circuit board is poured into the recycling crusher body to be crushed and recycled, at the moment, the loading box covers the feeding opening of the recycling crusher body, and the situation that fragments are splashed outwards from the recycling crusher body to pollute the environment is effectively avoided.

The utility model provides a take-out package packing box processing fast cutting device, including base, operating platform and adjusting mechanism, base bottom is fixedly connected with operating platform bottom, adjusting mechanism includes double-headed motor, rotating rod, belt pulley, belt, rotating wheel, screw and splint, base right side is movably connected with waste material box, and the base right side is movably connected with waste material box. A cavity is formed in the top of the operation table, a screw is fixedly connected to the inner wall of the cavity, the tops of the double-head motors are fixedly connected with the bottom of the operation table, the output end of the right double-head motor is fixedly connected with the left side of a rotating rod, and the right side of the rotating rod is fixedly connected with the left side of a belt wheel. Through the adjusting mechanism, the packaging box can be clamped and fixed when being cut, the clamping plates on the left side and the right side can move towards the opposite sides at the same time through the right-hand thread and the left-hand thread of the screw rod, the packaging box is stably clamped, and the situation that the packaging box inclines, and consequently defective products appear in the cutting process is avoided.

A pressure relief device for a high-pressure vessel of the present invention, comprises: a cap member having a space part formed therein; and a piston member having a first chamber part, and dividing the space part of the cap member into a second chamber part and a third chamber part, and thus, when fusible alloy is molten, the molten fusible alloy sequentially flows into the first chamber part and the second chamber part so that leakage of the molten fusible alloy to the outside can be prevented.