29 results about "Polluted atmosphere" patented technology

The invention discloses a chemical equipment waste gas filtering device and method, relates to the technical field of waste gas separation treatment, and solves the problems of low efficiency and poor effect during waste gas separation treatment caused by long time for separation operation of various impurities in waste gas during waste gas separation treatment. The chemical equipment waste gas filtering device comprises a waste gas pretreatment box, a waste gas separation box and a waste gas post-treatment box, the bottom of the waste gas pretreatment box is provided with the waste gas separation box, and the bottom of the waste gas separation box is provided with the waste gas post-treatment box. According to the waste gas treatment device, particulate matters, organic matters and odor in waste gas can be sequentially and synchronously separated and adsorbed, so that harmful parts in the waste gas cannot pollute the atmospheric environment when the waste gas is subsequently discharged into the atmospheric environment. And meanwhile, the waste gas treatment can be realized through operation of a group of driving pieces, the vibration and noise generated by the device during waste gas treatment are low, and the working environment is more comfortable.

A system for the destruction of PFAS compounds through mineralization with reactive oxides is disclosed herein. The system includes an acquisition unit for obtaining reactive oxides. The system also includes a mixing unit operatively connected to the acquisition unit, where the mixing unit is configured to combine PFAS-contaminated waste with the reactive oxides. The system also includes a high-temperature treatment unit operatively connected to the mixing unit to subject the mixture of PFAS-contaminated waste and reactive oxides to a chemical reaction. The system includes a cooling unit operatively connected to the high-temperature treatment unit. The system includes a waste collection receptacle connected to the cooling unit. The system includes particulate vapor treatment systems, where PFAS-contaminated atmospheres from the high-temperature treatment unit and the cooling unit are captured to prevent emissions to the environment.

The utility model relates to the technical field of laser cutting machines, in particular to a weather-proof steel plate laser cutting machine which not only reduces the temperature of a weather-proof steel plate, protects a protective layer of the weather-proof steel plate, absorbs smoke dust generated in the laser cutting process and prevents atmospheric environment from being polluted, but also knocks and conveys waste materials after cutting is completed, so that the cutting efficiency is improved. The follow-up cutting progress is prevented from being affected by waste; comprising a conveying mechanism; the device further comprises two sets of driving mechanisms, four sets of clamping mechanisms, a cutting mechanism, a water curtain mechanism and a knocking mechanism, the two sets of driving mechanisms are installed on the conveying mechanism, the four sets of clamping mechanisms are installed on the two sets of driving mechanisms correspondingly, and the driving mechanisms and the clamping mechanisms are matched to drive the weather-proof steel plate to move. The cutting mechanism is installed on the conveying mechanism and conducts laser cutting on the weather-proof steel plate, the water curtain mechanism is installed on the cutting mechanism and conducts cooling and dust collection on the weather-proof steel plate, and the knocking mechanism is installed on the cutting mechanism and knocks down cut waste materials.

The invention discloses intelligent feed processing feeding equipment capable of reducing air pollution, and relates to the technical field of feed production, the intelligent feed processing feeding equipment comprises a transmission mechanism, the transmission mechanism is mounted on one side of a fermentation tank, the fermentation tank is filled with silage raw materials, the silage raw materials are subjected to fermentation treatment in the fermentation tank, and the transmission mechanism is mounted on the other side of the fermentation tank; carbohydrates in the raw materials are decomposed through microorganisms, silage raw material fermentation products are used as feed, the feed is put onto the transmission mechanism from the fermentation tank and conveyed through the transmission mechanism, and the top end of the fermentation tank is communicated with a conveying pipeline. Carbon dioxide generated by silage fermentation is collected through the conveying pipeline and directionally conveyed to the algae culture plate through the ventilation shell, the carbon dioxide is converted into organic matter through algae photosynthesis, the carbon dioxide recovery rate is increased, and it is avoided that the carbon dioxide is directly discharged to pollute the atmosphere; meanwhile, the equipment is closed in the whole process and is matched with terminal dust removal treatment, the dust emission concentration is reduced, unorganized emission is greatly reduced, and the environment-friendly requirement is met.

The utility model relates to the technical field of gas on-line monitoring analysis, in particular to a pumping type multi-gas on-line monitoring analysis box for a closed space, which comprises a box body and a bridge frame. Through the arrangement of a gas inlet cover, a first oil-water filter, a first air filter, a first diaphragm pump, a combustible gas detector, a second diaphragm pump, a VOCs volatile organic compound detector, a second oil-water filter, a gas mixing tank, a second air filter and a wastewater collection box, the device can extract and detect gas in a closed space; then the detected gas is discharged into the closed space again, gas circulation can be formed, gas detection is continuously carried out, the atmosphere cannot be polluted, the device can be fixed to the outer side of the closed space, and if the liquid level in the closed space changes, the fixing position and height of the device can be conveniently changed; and normal gas detection is ensured, and meanwhile, workers can conveniently overhaul.

The invention discloses an anti-cracking and anti-bulging supercritical N2 safe discharge device, and relates to the technical field of N2 discharge, the anti-cracking and anti-bulging supercritical N2 safe discharge device comprises an exhaust pipe, an exhaust groove, a buffer pipe, a silencer and an adsorption structure; the exhaust groove is formed below soil and used for storing the buffer pipe, a cement cover plate is arranged at the top of the exhaust groove, and the surface of the cement cover plate is covered with soil. One end of the exhaust pipe is communicated with the buffer pipe, and the other end of the exhaust pipe is connected with an exhaust port of the high-pressure reaction kettle; the buffer pipe and the silencing device are used for carrying out superposed noise reduction on noise generated by N2 emission, noise pollution is greatly reduced, an activated carbon layer is arranged to adsorb and filter a cross-linking agent in N2 to avoid air pollution, and the buffer pipe is arranged to avoid pollution caused by direct contact between N2 and soil.

The utility model discloses vacuum evaporation coating equipment, which comprises a bottom plate, a vacuum evaporation coating device and a vacuum evaporation coating device, wherein an anti-skid pad is arranged at the bottom of the bottom plate; the top of the base is fixedly connected with a coating equipment body; one side of the sedimentation assembly communicates with one side of the surface of the coating equipment body, and the sedimentation assembly is used for recycling solid granular materials; the bottom of the purification assembly is fixedly connected with one side of the top of the bottom plate, and the purification assembly is used for absorbing impurities in the coating process. According to the vacuum evaporation coating equipment, by means of the arrangement of the sedimentation assembly, in the process that the discharging pipe discharges waste outwards, microparticle waste with large mass can directly fall down and be stably collected by the recycling bottom cover, stable use is convenient, a baffle can be rapidly disassembled, workers can easily clean the recycling bottom cover, and the purification assembly is arranged, so that the waste is effectively recycled. The atmosphere pollution is avoided.

The invention is suitable for the related technical field of rotary kilns, and provides a circumferential bottom air distribution rotary kiln which comprises a supporting frame and a kiln body arranged on the supporting frame. The circumferential air distribution mechanism is located at the discharging end of the kiln body and comprises an air distribution ring fixedly connected with the kiln body, a plurality of multi-directional air distribution assemblies are arranged in the circumferential direction of the air distribution ring, each multi-directional air distribution assembly comprises a second air distribution box and a first air distribution box, and a first air distribution cavity and a second air distribution cavity are formed in each first air distribution box; a swing type air distribution unit is arranged in the second air distribution box, and a lifting unit and a bottom air distribution unit are arranged in the first air distribution cavity and the second air distribution cavity correspondingly. According to the invention, through the cooperative arrangement of the circumferential air distribution mechanism and the selective air supply mechanism, uniform air supply can be realized, the reduction of temperature fluctuation in the kiln is facilitated, the stability of product quality is improved, and organic volatile components are prevented from polluting the atmosphere.

The utility model discloses an activated carbon plate replacement mechanism of a chemical waste gas purification device, and relates to the technical field of chemical waste gas. The device comprises a shell and a smoke pipe, the smoke pipe fixedly penetrates through the shell, a smoke outlet pipe penetrates through the top of the shell, and a replacing and filtering device is arranged in the shell; the filter replacing device comprises a handle, the handle is arranged on the inner wall of the smoke outlet pipe, and the top of the handle is fixedly connected with an activated carbon plate. Through mutual cooperation of the push rod, the spring, the stress plate, the sliding groove and other components, when the push rod is stressed to be lifted, the stress plate is not subjected to downward pressure of the push rod any more, so that the stress plate is lifted upwards under the elastic force of the spring, the pipe opening of the smoke pipe is blocked, waste gas in the smoke outlet pipe is not purified and discharged from the smoke pipe any more, and the smoke outlet pipe is protected. When a worker replaces the activated carbon plate, gas cannot leak out to pollute the atmosphere, the environment can be protected to a certain extent, and the working efficiency of the worker is improved.

The utility model relates to the technical field of incinerators, and discloses an incinerator oxygenating and preheating device which comprises a bottom plate, and a supporting frame is fixedly installed on the top of the bottom plate. The tail gas treatment device has the following advantages and effects that heat carried by tail gas can be effectively utilized, oxygen supplementing gas is subjected to primary preheating, the tail gas is conveniently treated through the gas outlet pipe, atmosphere pollution is avoided, heat emitted by the incinerator body can be absorbed through the water tank, then clean water in the water tank is heated, and the tail gas can be recycled. The incinerator body can be used for heating the first spiral pipe, then hot water is used for conducting secondary preheating on the oxygen supplementing gas in the first spiral pipe, the heat recycling rate is increased, the incinerator body can be used for heating the second spiral pipe, then the oxygen supplementing gas is preheated again before the oxygen supplementing gas enters the incinerator body, and the preheating efficiency of the oxygen supplementing gas is greatly improved; the heat loss is reduced, and the heat recycling efficiency is further improved.

The utility model discloses an atmospheric pollution control, prevention and detection device capable of performing temporary treatment, and relates to the technical field of atmospheric prevention and detection equipment. The atmospheric pollution control, prevention and detection device capable of being temporarily treated comprises a mobile vehicle, and further comprises an air sampling assembly arranged right above the mobile vehicle and used for extracting nearby polluted atmosphere; the monitoring assembly is arranged at the bottom end of the air sampling assembly, and the monitoring assembly is used for monitoring the atmosphere pumped by the air sampling assembly; the air processing assembly is arranged on the surface of the bottom of the monitoring assembly, the output end of the monitoring assembly is connected with the output end of the air processing assembly in a conducting mode, the air component can be detected, the atmosphere can be temporarily processed, and therefore the influence of the polluted atmosphere on the environment can be reduced.

The invention relates to a dust remover, and provides an electric environmental sanitation dust remover convenient for garbage disposal, the electric environmental sanitation dust remover comprises a box body, and a gravity separation mechanism is arranged in the box body and covers garbage sliding out from the tail end of a dust suction pipe; the impurity sorting mechanism is mounted at the tail end of the gravity sorting mechanism and is used for carrying out secondary separation on the garbage screened by the gravity sorting mechanism; the dust removal mechanism is installed in the box body, and the bottom end of the dust removal mechanism communicates with the sundry sorting mechanism. The variable-speed sorting mechanism is arranged at the bottom end of the gravity sorting mechanism, and the variable-speed sorting mechanism is connected with an external power connection box and used for collecting metal materials; the magnetic drainage mechanism is mounted on the variable-speed sorting mechanism and is used for screening and collecting metal materials left after screening of the variable-speed sorting mechanism again; when the dust collection device is used, sundries sucked into the dust collection device through the dust collection pipe can be screened in a grading mode, the utilization rate of resources is increased, dust dissipation is effectively avoided, the atmospheric environment is prevented from being polluted, and the dust collection device has high application value.

The utility model provides a sludge drying workshop odor treatment device which comprises a treatment box, a moving platform, an air inlet connecting mechanism, an air outlet pipe and a treatment mechanism, the connecting mechanism comprises an air inlet pipe, an annular air bag, an air pump and an air conveying pipeline, and the treatment mechanism comprises an ultraviolet lamp and a plurality of partition plates. The treatment box can be driven to one side of different drying workshops through the moving platform, so that the air inlet pipe is in butt joint with an exhaust pipeline of the drying workshops, external air is conveyed into the annular air bag through the air pump, the annular air bag can be sealed after bulging, and environmental pollution caused by the fact that odor exhausted by the drying workshops overflows to the outside is avoided; by means of the mode that the annular air bag bulges and contracts, disassembly and assembly are convenient and fast, the device can be suitable for different drying workshops, after odor enters the treatment box, the odor can circulate along the bent channel, the path is prolonged, the odor can be photolyzed through the ultraviolet lamp, the treated odor can be discharged, and the atmospheric environment and the working environment cannot be polluted.

The utility model discloses a hot-method regeneration furnace for used sand, which is characterized in that a sand conveying cavity is formed inside a roller part and extends along the transverse direction, one end of the sand conveying cavity is a sand inlet end, and the other opposite end of the sand conveying cavity is a sand outlet end; the driving part is configured to drive the roller part to rotate; the electric heating part is arranged on the roller part and is configured to heat the roller part; the sand adding part is arranged at the sand inlet end of the roller part and is configured to supply used sand into the sand conveying cavity; when the roller part rotates in the first direction, sand in the sand conveying cavity is conveyed in the direction from the sand inlet end to the sand outlet end and discharged out of the roller part from the sand outlet end. When the roller part rotates in the second direction, sand in the sand conveying cavity is conveyed from the sand outlet end to the sand inlet end and discharged out of the roller part from the sand inlet end. The regeneration furnace is horizontal, used sand in the regeneration furnace can be emptied, use and maintenance are convenient, and an electric heating mode is adopted, so that atmosphere pollution is avoided.

The invention relates to a preparation method of a fly ash aeolian sand roadbed filling material, the material comprises fly ash, aeolian sand and water, the fly ash and the aeolian sand are uniformly mixed to obtain a mixture of the fly ash and the aeolian sand, the water with a certain mass ratio is added into the mixture, and the mixture is fully stirred to obtain the aeolian sand roadbed filling material. The fly ash and the aeolian sand are mixed on site, local materials are used, the transfer link is reduced, the fly ash polluting the atmosphere is fully utilized, and the method is economical, environmentally friendly and easy to operate; the fly ash and water are subjected to a hydration reaction to generate a gel substance, and the aeolian sand which is a material with a single particle size and poor integrality is agglomerated and formed to form the road building material with relatively high strength and integrality.

A device 100 to clean polluted air includes a balloon 102 filled with gas and configured to float in the space surrounded by polluted air, and a container 104, include filter element 106 collecting solid filtered pollutants. When the polluted air is forced into the filter element 106 through an exhaust fan 110, the filter element 106 absorbs harmful gases and filter solid pollutants to clean the polluted air. The polluted air includes one or more harmful gases and the solid pollutants such as PM 2.5 and above. The balloon 102 is hooked with a stable structure 112 placed on the ground through a rope 114 and the shape of balloon 102 can be spherical or an oval. The power generation unit 116 can be a solar panel or a wind turbine unit, and the surplus power can be stored in one or more storage batteries 118.

The utility model provides an improved hydraulic lifting device, including hydraulic lifting car body, ground distribution box, plug and socket, be provided with oil pump motor, hydraulic oil pump and control system on the hydraulic lifting car, and control system includes from station PLC, actuating mechanism and feedback mechanism, has set up the socket on the both sides of hydraulic lifting car body, when hydraulic lifting car body removes to the driveway, the plug can be connected with the socket, realizes the power supply and communication to hydraulic lifting car body, and adopts the oil pump motor of electric drive to replace traditional diesel engine to drive the hydraulic oil pump, can reduce the maintenance frequency, reduces the use cost, reduces the emission of pollution gas simultaneously, avoids the pollution of atmospheric environment, when carrying out the container lifting, realizes the automation of lifting through actuating mechanism, and detects whether the lifting is in place through feedback mechanism, guarantees the stable loading and unloading of container.

According to the resin sand regeneration method, a regeneration furnace is used for heating regeneration, a sand conveying cavity is formed in a roller part of the regeneration furnace, the sand conveying cavity extends in the transverse direction, one end of the sand conveying cavity is a sand inlet end, and the other end of the sand conveying cavity is a sand outlet end; the driving part is configured to drive the roller part to rotate; the electric heating part is arranged on the roller part; the sand adding part is arranged at the sand inlet end of the roller part; the sand discharging part is arranged at the sand inlet end of the roller part; the gas inlet part is configured to supply gas into the sand conveying cavity; the exhaust part is configured to exhaust gas in the sand conveying cavity; when the roller part rotates in the first direction, sand in the sand conveying cavity is conveyed in the direction from the sand inlet end to the sand outlet end and discharged out of the roller part. When the roller part rotates in the second direction, sand in the sand conveying cavity is conveyed from the sand outlet end to the sand inlet end and discharged out of the roller part from the sand discharging part. The regeneration furnace is horizontal, resin sand in the regeneration furnace can be emptied, use and maintenance are convenient, and an electric heating mode is adopted, so that atmosphere pollution is avoided.

The utility model provides a coal mine ventilation auxiliary device, and relates to the field of coal mine ventilation. A fan motor is mounted on the outer side surface of the exhaust cylinder; a water tank is welded to the lower side face of the recycling cabinet. A pump is installed at the position, close to the rear end, of the upper side face of the water tank. A water conveying pipe is installed at a water outlet of the pump. A water distribution pipe is installed at the other end of the water conveying pipe. Water mist nozzles are mounted on the inner sides of the distributive pipes; an intercepting plate is welded on the inner side surface of the air duct; through the arrangement of a water distribution pipe, a water mist nozzle and an intercepting plate, coal dust is effectively prevented from escaping along with exhausted air to pollute the atmospheric environment, and coal slag particles are prevented from impacting and damaging blades of the fan for a long time; the problems that a traditional underground coal mine ventilation system does not have the mine dust and coal cinder particle intercepting function, so that fan blades are damaged, and the external atmospheric environment of a mining area is polluted are solved.

The invention discloses a copper and copper alloy part surface anti-corrosion process and application thereof.The process comprises a series of refined surface treatment steps including surface degreasing and cleaning, electrochemical environment-friendly complexing blunt conversion to form a film, and electrical contact surface photochemical film fixing anti-corrosion protection. And a chemically-bonded polymerization-induced blunt complex conversion film protection layer is generated on the surfaces of copper and copper alloy. Compared with an existing copper material protection technology, the protective film layer can effectively isolate an atmosphere corrosion medium from being in contact with a metal matrix, and therefore the corrosion resistance of the part is remarkably improved. The weather-resistant and corrosion-resistant coating is especially suitable for high-humidity and heavy-pollution atmospheric working condition environmental sections, shows more excellent weather-resistant and corrosion-resistant performance, and meets the corrosion-resistant protection requirements of special environmental sections such as coastal areas, islands and industrial heavy-pollution areas on parts of high-speed rails and rail transit overhead line systems. And the safety accident risk in the high-speed rail and the rail transit overhead line system caused by environmental corrosion factors is reduced.

The present invention discloses a sealing device, which includes: a sealing cap plate for installing a pipe to be sealed; a plurality of locking mechanisms, which are arranged on the sealing cap plate and are used to abut against the tank car mouth so that the sealing cap plate and the tank car mouth are tightly sealed and pressed; and a rotatable sealing mechanism, which is arranged on the sealing cap plate and is used to connect with the pipe to be sealed so that the sealing cap plate can rotate around the pipe to be sealed. The sealing device of the present invention can rotate around the pipe to be sealed, so that during the sealing and locking process, if the tank car mouth has an additional structure that protrudes into the tank car mouth, the locking mechanism can avoid the additional structure that protrudes into the tank car mouth, that is, the present invention can adjust the position of the locking mechanism at the tank car mouth, thereby achieving the effect of sealing and pressing the tank car mouth, thereby avoiding environmental pollution caused by polluted atmosphere.

The utility model discloses an automatic stirring and batching device for dry-mixed mortar production, which relates to the technical field of automatic stirring and batching devices for dry-mixed mortar production, and comprises a support column, the top of the support column is fixedly connected with a mixing barrel, the top of the mixing barrel is fixedly provided with a motor, and the top of the mixing barrel is fixedly connected with a pipeline. Through arrangement of a protective net, a pipeline, a collecting box, an exhaust fan, a pressure relief hole, a filter net, a collecting frame, a grip, a limiting block, a taking-out groove, a motor and a stirring shaft, the automatic stirring and batching device for dry-mixed mortar production can collect dust, and the situation that the dust floats out of a feeding opening to pollute the atmospheric environment is avoided; through the arrangement of a high-low ring, a fixing frame, walking wheels, a threaded rod, a fixing ring, a spring, a bearing transmission shaft and a movable shaft, the automatic stirring and batching device for dry-mixed mortar production has the advantages that the mixing effect is improved, and the situation that various ingredients cannot be efficiently, rapidly and uniformly mixed together is avoided.

The utility model discloses a wooden cabinet custom-made processing positioning device, which relates to the technical field of wooden cabinet processing, and comprises a bottom plate and a reciprocating mechanism, the top of the bottom plate is fixedly connected with the reciprocating mechanism, and the position of the top of the bottom plate far away from the reciprocating mechanism is fixedly connected with a rotating column. The reciprocating mechanism drives the dust collector at the top of the dust collection box to reciprocate on one side of the positioning device, and the diameter of the top end of the rotating column is large, so that the positioning mechanism is limited. Compared with an existing common positioning device, the wood cabinet customized processing positioning device can adsorb dust generated by cutting a wood cabinet in time, avoids dust flying, polluting the atmospheric environment, affecting the sight of operators, being inconvenient to operate and causing accidents, meanwhile, positions wood cabinets of different sizes, and improves the positioning efficiency. The problem that other operators need to centralize the wood cabinet when the wood cabinet is cut or welded is solved, the wood cabinet is automatically fixed and positioned, the operation accuracy is improved, and the wood cabinet manufacturing efficiency is improved.

The invention discloses wastewater separation equipment with a waste gas treatment function, and relates to the technical field of wastewater treatment and separation.The wastewater separation equipment with the waste gas treatment function comprises a separation box, a filtering tank and a purification box, and the separation box is provided with a waste inlet pipe and a pump machine; the output end of the pump machine is connected with the top of the separation box through an air suction pipe, the output end of the pump machine is connected with the bottom of the filtering tank through an air conveying pipe, a filtering net is arranged in the filtering tank, the upper portion of the filtering tank is connected with the bottom of the purification box through an air conveying pipe, and purification absorption liquid is stored in the purification box; an exhaust pipe is installed on the upper portion of the purification box, when separation is conducted in the separation box, a pump is started, waste gas can be conveyed into the filtering tank, particle impurities in the waste gas are filtered through the filtering net, and then harmful gas in the waste gas can be absorbed through purification absorption liquid in the purification box; therefore, the gas exhausted by the exhaust pipe cannot pollute the atmospheric environment.

The utility model provides an environment-friendly low-smoke extruder for cable production, which relates to the technical field of extruders and comprises an extruder body, an extrusion pipe mounted at the top of the extruder body, a feed hopper mounted at the top of the extrusion pipe, a control case mounted on the outer side of the extruder body and a smoke removal component arranged on one side of the top of the extruder body. The smoke removal assembly comprises a smoke suction cover, a supporting rod, a smoke suction fan, a smoke exhaust pipe and a gas purification box, and the purification assembly is arranged on the outer side of the extruder body and comprises a limiting clamping groove, an activated carbon plate, a fixing block, a handle and a gas purification outlet pipe. According to the environment-friendly low-smoke extruder for cable production, smoke can be effectively collected and treated through the smoke removal assembly, the smoke is prevented from being scattered in a working environment area and inhaled by workers, harm to the body health of the workers is avoided, harmful gas in the smoke can be adsorbed and purified through the purification assembly, the situation that the atmospheric environment is polluted when the smoke is discharged is avoided, and the environment is protected. Environmental protection is improved, and the purpose of environment-friendly production is achieved.

The utility model belongs to the technical field of food fermentation, and particularly relates to a food fermentation tank. Comprising a tank body, a mounting hole is formed in the top of the tank body, a fixing cylinder with a downward opening is arranged in the mounting hole, an exhaust assembly used for exhausting gas in the tank body is arranged in the fixing cylinder, a purification cylinder is arranged on the side wall of the fixing cylinder, and the purification cylinder and the fixing cylinder are connected and communicated through a connecting pipe; an HEPA layer plate used for removing pollution particles in gas is arranged in the purification cylinder, an activated carbon plate used for adsorbing peculiar smell in the gas is arranged on the side wall of the HEPA layer plate, an exhaust hole is formed in the side wall of the purification cylinder, an exhaust pipe is arranged at the exhaust hole, and a valve is installed on the exhaust pipe. According to the utility model, gas in the tank body can be exhausted, and peculiar smell of the gas can be purified, so that the atmospheric environment is prevented from being polluted, and the health of workers is prevented from being harmed.

The utility model relates to a coke drying system for a blast furnace. The smoke exhaust pipeline is communicated with the hot blast stove heat exchanger; the high-temperature induced draft fan is arranged on the smoke exhaust pipeline; the coke bin is arranged at the downstream of the high-temperature induced draft fan and is communicated with the smoke exhaust pipeline; high-temperature smoke in the smoke exhaust pipeline is sucked into the coke bin through the high-temperature induced draft fan, and then coke in the coke bin is dried and dehumidified. By means of the adsorbability of the coke, some components in the rich waste heat flue gas are absorbed and prevented from flowing into the atmosphere to pollute the atmospheric environment. The device is simple in structure and high in operability.

The utility model provides a rotary sludge incinerator, and relates to the technical field of rotary sludge incinerators, the rotary sludge incinerator comprises an incinerator, the surface of the incinerator is fixedly connected with a burner, the surface of the incinerator is fixedly connected with a feed inlet, the surface of the incinerator is fixedly connected with a ventilation pipe, and the surface of the incinerator is fixedly connected with a discharge port. An exhaust pipe is arranged at the upper top of the incinerator, a stirring device is arranged at the bottom of the incinerator, a filtering device is arranged on the surface of the exhaust pipe and comprises a circular groove formed in the inner wall of the exhaust pipe, a filtering net is arranged in the circular groove, a sponge block is arranged in the circular groove, and a dust collection device is arranged in the sponge block. The sponge block is arranged on the upper surface of the filter screen, a storage bag is arranged in the circular groove, sodium peroxide is contained in the storage bag, and a rectangular groove is formed in the inner wall of the exhaust pipe. The sludge incinerator solves the problem that harmful gas generated when sludge is incinerated by the incinerator is directly discharged into the atmosphere to pollute the atmosphere.

The utility model discloses a safety helmet flame retardant performance testing device, which relates to the safety helmet field, and comprises a box body, the top of the box body is fixedly connected with a water pump, two sides of the water pump are connected with a water inlet pipe in a penetrating manner, one end of the water inlet pipe close to the center of the box body is fixedly connected with the top of the box body, and the top of the box body is provided with a rotating mechanism which comprises a motor. The motor is fixedly connected to the top of the box, and the output end of the motor is fixedly connected with a driving gear. The device has the beneficial effects that the rotating mechanism of the device can rotate the water spraying pipe to cooperate with the water supply of the water pump to the water spraying pipe, and the water spraying pipe can spray water in a surrounding manner to quickly extinguish the safety helmets which do not reach the flame retardant property and are combusted, so that the influence on the testing process caused by too fast fire spreading is avoided, and the safety is enhanced; and the filtering mechanism of the device can prevent harmful gas leakage from harming the health of operators, and meanwhile, smoke is discharged to the outside after being filtered, so that the atmosphere cannot be polluted, and the device is relatively environment-friendly.