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57results about How to "Control noise pollution" patented technology

Connecting structure of fabricated concrete-filled steel tubular column body

The invention discloses a connecting structure of a fabricated concrete-filled steel tubular column body. The connecting structure comprises a first steel tubular column section and a second steel tubular column section; the first steel tubular column section is in butt joint with the second steel tubular column section, an inner steel tube is inserted into an inserting groove in a second outer steel tube, and a liner tube is arranged at the connecting position of a first outer steel tube and the second outer steel tube; the first outer steel tube, the second outer steel tube and the liner tube are welded into one through V-shaped groove welding; cementing materials are poured into gap areas in the first outer steel tube and the second outer steel tube, and air in the gap areas is exhausted though exhaust vents; and connecting plates are mounted on a first lug plate and a second lug plate through bolts. The connecting structure has the advantages that the shear-bearing ability of the connecting parts is improved, so that the column body reaches the normal section compression-bending bearing force and the shear-bearing ability which are not less than those of cast-in-place concrete,mounting is easy and convenient, the production and construction efficiency is improved, dust and noise pollution is further reduced, and the environmental-friendly requirements of green buildings are met.
Owner:重庆大学建筑规划设计研究总院有限公司

Kaolin flame-retardant foaming agent

The invention discloses a kaolin flame-retardant foaming agent. The technical scheme has the following key points: the kaolin flame-retardant foaming agent comprises dried kaolin, activated attapulgite, sodium hydrogen carbonate, sodium alkyl benzene sulfonate, sodium polyacrylate, sodium pyrophosphate, ammonium polyphosphate and zinc borate. The finished product of the kaolin flame-retardant foaming agent is prepared by stirring, grinding and packaging the ingredients. Water is added into the kaolin flame-retardant foaming agent, and a great deal of gas is rapidly released after the water solution is stirred at high speed, so that porous foam slurry can be formed; the foam slurry is jetted by a high-pressure water gun so as to be directly used for putting out a fire; the foam slurry is stably covered on the surface layer of combustible material so as to form a foam slurry film; and the foam slurry film can rapidly isolate the contact between the combustible material and the air, and the combustible material is prevented from continuously burning, so that the aims of inflaming retarding and extinguishing a fire can be achieved. The kaolin flame-retardant foaming agent is suitable for producing light weight boards, light weight walls and noise reduction products which have the inflaming retarding and fire extinguishing functions.
Owner:安徽优盾信息科技有限公司

Unfired sludge foaming acoustical board

The invention discloses an unfired sludge foaming acoustical board. According to the technical scheme, the unfired sludge foaming acoustical board is characterized in that a built-in frame is horizontally placed on a mold, after short steel pipes in the built-in frame are inserted into stand columns, sludge cement foaming agent is poured on the periphery of the built-in frame, the built-in frame is totally inlaid in the sludge cement foaming agent, maintenance is performed according to a conventional cement product maintenance method, and packaging is performed to form an unfired sludge foaming acoustical board finished product; the sludge cement foaming agent is prepared from a sludge mixture, high-viscosity attapulgite clay powder, cement and other raw materials; the sludge cement foaming agent and the built-in frame form an integrated whole after the sludge cement foaming agent is cured, and thus the overall strength, the bending resistance and the actual using effect of the unfired sludge foaming acoustical board are improved. The unfired sludge foaming acoustical board not only can be used for effectively controlling noise pollution but also has the functions of heat preservation and air purification and is suitable for being mounted in facilities such as expressways, viaducts, urban light rails, subways, public places and the like.
Owner:许庆华

Unfired serpentine foaming acoustical board

The invention discloses an unfired serpentine foaming acoustical board. According to the technical scheme, the unfired serpentine foaming acoustical board is characterized in that a built-in frame is horizontally placed on a mold, after short steel pipes in the built-in frame are inserted into stand columns, serpentine cement foaming agent is poured on the periphery of the built-in frame, the built-in frame is totally inlaid in the serpentine cement foaming agent, maintenance is performed according to a conventional cement product maintenance method, and packaging is performed to form an unfired serpentine foaming acoustical board finished product; the serpentine cement foaming agent is prepared from serpentine, high-viscosity attapulgite clay powder, cement and other raw materials; the serpentine cement foaming agent and the built-in frame form an integrated whole after the serpentine cement foaming agent is cured, and thus the overall strength, the bending resistance and the actual using effect of the unfired serpentine foaming acoustical board are improved. The unfired serpentine foaming acoustical board not only can be used for effectively controlling noise pollution but also has the functions of heat preservation and air purification and is suitable for being mounted in facilities such as expressways, viaducts, urban light rails, subways, public places and the like.
Owner:许庆华

Unfired water-quenched slag foaming acoustical board

The invention discloses an unfired water-quenched slag foaming acoustical board. According to the technical scheme, the unfired water-quenched slag foaming acoustical board is characterized in that a built-in frame is horizontally placed on a mold, after short steel pipes in the built-in frame are inserted into stand columns, water-quenched slag cement foaming agent is poured on the periphery of the built-in frame, the built-in frame is totally inlaid in the water-quenched slag cement foaming agent, maintenance is performed according to a conventional cement product maintenance method, and packaging is performed to form an unfired water-quenched slag foaming acoustical board finished product; the water-quenched slag cement foaming agent is prepared from water-quenched slag, high-viscosity attapulgite clay powder, cement and other raw materials; the water-quenched slag cement foaming agent and the built-in frame form an integrated whole after the water-quenched slag cement foaming agent is cured, and thus the overall strength, the bending resistance and the actual using effect of the unfired water-quenched slag foaming acoustical board are improved. The unfired water-quenched slag foaming acoustical board not only can be used for effectively controlling noise pollution but also has the functions of heat preservation and air purification and is suitable for being mounted in facilities such as expressways, viaducts, urban light rails, subways, public places and the like.
Owner:许庆华

Unburned attapulgite foam sound-absorbing board

The invention discloses an unburned attapulgite foam sound-absorbing board. The technical scheme is characterized in that an internal frame is flatly placed on a mould, after short steel tubes in the internal frame are inserted into columns, an attapulgite cement foaming agent is poured on the periphery of the internal frame, the internal frame is totally inlaid in the inside of the attapulgite cement foaming agent, curing is carried out according to a conventional cement product curing method, and packaging is performed to form an unburned attapulgite foam sound-absorbing board finished product. The internal frame is inlaid in the unburned attapulgite foam sound-absorbing board finished product, and the attapulgite cement foaming agent is integrated with the internal frame into a whole after curing, so that integral strength, bending resistance capacity and actual use effect of the unburned attapulgite foam sound-absorbing board are improved. The unburned attapulgite foam sound-absorbing board can not only effectively control noise pollution but also has functions in thermal insulation and air purification; besides, the unburned attapulgite foam sound-absorbing board is suitable for being mounted in facilities such as highways, viaducts, urban light rails, subways, factories, warehouses and public places.
Owner:浙江龙鹰光电科技有限公司

Steel-wire belt cut-off device for square-section bead ring

The invention discloses a steel-wire belt cut-off device for a square-section bead ring. The device comprises an actuating mechanism and a gas-liquid power system, wherein the actuating mechanism consists of a mounting bracket, a machine nozzle, a cutter, an oil hydraulic cylinder and a cutter connector; the machine nozzle is formed at the lower part of the mounting bracket; the oil hydraulic cylinder is arranged at the upper part of the mounting bracket; the cutter is arranged on a piston rod of the oil hydraulic cylinder through the cutter connector, and a plane Alpha on which a cutter blade and the cutter are arranged is coincided with a plane penetrating the centerline L of the piston rod; the cutter blade corresponds to the outlet of the machine nozzle; the gas-liquid power system is connected with the oil hydraulic cylinder; and the gas-liquid power system is used for pushing the piston rod to move up and down to drive the cutter at the lower part of the piston rod to cut off the steel-wire belt coming out of the machine nozzle. According to the invention, the travel of the cut-off cutter is less than 10 mm, and the device can conduct closed operation to completely eliminate security risks. The service life of the cutter and the machine nozzle is 3-5 times longer than that of similar devices.
Owner:AEOLUS TIRE

Unfired gypsum foaming acoustical board

The invention discloses an unfired gypsum foaming acoustical board. According to the technical scheme, the unfired gypsum foaming acoustical board is characterized in that a built-in frame is horizontally placed on a mold, after short steel pipes in the built-in frame are inserted into stand columns, gypsum cement foaming agent is poured on the periphery of the built-in frame, the built-in frame is totally inlaid in the gypsum cement foaming agent, maintenance is performed according to a conventional cement product maintenance method, and packaging is performed to form an unfired gypsum foaming acoustical board finished product; the gypsum cement foaming agent is prepared from calcined gypsum, high-viscosity attapulgite clay powder, cement and other raw materials; the gypsum cement foaming agent and the built-in frame form an integrated whole after the gypsum cement foaming agent is cured, and thus the overall strength, the bending resistance and the actual using effect of the unfired gypsum foaming acoustical board are improved. The unfired gypsum foaming acoustical board not only can be used for effectively controlling noise pollution but also has the functions of heat preservation and air purification and is suitable for being mounted in facilities such as expressways, viaducts, urban light rails, subways, public places and the like.
Owner:许庆华

Noise absorbing device for vacuum pump

The invention comprises a noise absorbing device for a vacuum pump. The noise absorbing device comprises a base plate, a housing and more than one stage of heat dissipation components, wherein the housing is fixedly arranged on the top of the base plate, and each stage of heat dissipation components is fixedly arranged on the outer surface of the housing respectively; each stage of heat dissipation components comprises a temperature controller, an air draft device, an air supply device, a radiating pipeline and a radiator respectively; the temperature controller is fixedly arranged in the housing, the air draft device and the air supply device are obliquely and fixedly on the outer surface of the housing in a sealing mode at an interval, the air draft device and the air supply device are electrically connected to the temperature controller respectively, the radiator is fixedly arranged on the outer surface of the housing between the air draft device and the air supply device, and the two ends of the radiating pipeline are connected to the air draft device and the air supply device respectively in the sealing mode, and the middle part of the radiating pipeline is tortuously embedded in the radiator; moreover, a through hole for connecting the vacuum pump with the outside is further formed in the housing. The noise absorbing device can not only reduce the noise pollution of the vacuum pump effectively but also dissipate heat for the vacuum pump effectively.
Owner:合肥普立通科技有限公司

Unfired basalt foaming acoustical board

The invention discloses an unfired basalt foaming acoustical board. According to the technical scheme, the unfired basalt foaming acoustical board is characterized in that a built-in frame is horizontally placed on a mold, after short steel pipes in the built-in frame are inserted into stand columns, basalt cement foaming agent is poured on the periphery of the built-in frame, the built-in frame is totally inlaid in the basalt cement foaming agent, maintenance is performed according to a conventional cement product maintenance method, and packaging is performed to form an unfired basalt foaming acoustical board finished product; the basalt cement foaming agent is prepared from vesicular basalt, high-viscosity attapulgite clay powder, cement and other raw materials; the basalt cement foaming agent and the built-in frame form an integrated whole after the basalt cement foaming agent is cured, and thus the overall strength, the bending resistance and the actual using effect of the unfired basalt foaming acoustical board are improved. The unfired basalt foaming acoustical board not only can be used for effectively controlling noise pollution but also has the functions of heat preservation and air purification and is suitable for being mounted in facilities such as expressways, viaducts, urban light rails, subways, public places and the like.
Owner:许庆华

Unfired illite foaming acoustic panel

The invention discloses an unfired illite foaming acoustic panel. According to the technical scheme, the unfired illite foaming acoustic panel is characterized in that a built-in frame is horizontally placed on a die, after short steel pipes in the built-in frame are inserted into stand columns, the periphery of the build-in frame is poured with an illite cement foaming agent, the built-in frame is completely embedded into the illite cement foaming agent, and the obtained product is maintained through a conventional maintaining method for cement products and is packed into a finished unfired illite foaming acoustic panel; the illite cement foaming agent is made of illite, high-sticky attapulgite clay, cement and other raw materials; after the illite cement foaming agent is solidified, an integral body is formed by the illite cement foaming agent and the built-in frame, the overall intensity, the bend resisting capability and the practical use effect of the unfired illite foaming acoustic panel are enhanced, noise pollution can be effectively controlled through the unfired illite foaming acoustic panel, the heat preservation and air purifying functions are achieved, and the unfired illite foaming acoustic panel is suitable for being installed in expressways, viaducts, metros, factories, public places and other facilities.
Owner:许庆华

Burn-free rectorite foam sound-absorbing panel

The invention discloses a fire-free rectorite foamed sound-absorbing board. The main point of the technical proposal is that the built-in frame is placed flat on the mould, and after the short steel pipes in the built-in frame are inserted into the columns, the rectorite cement foaming agent is used It is poured on the periphery of the built-in frame, and the built-in frame is completely embedded in the rectorite cement foaming agent. It is cured according to the conventional curing method of cement products, and it is packaged as a finished product of non-burning rectorite foam sound-absorbing board; rectorite cement foam The agent is composed of rectorite, high-viscosity attapulgite clay powder and cement and other raw materials; after solidification, the rectorite cement foaming agent forms an integrated whole with the built-in frame, which increases the performance of non-burning rectorite foam sound-absorbing panels. Overall strength, bending resistance and practical use effect. Non-burning rectorite foam sound-absorbing panels can not only effectively control noise pollution, but also have the functions of heat preservation and air purification. Rectorite foam sound-absorbing panels are suitable for installation in highways, viaducts, urban light rail, subways, public places, etc. in the facility.
Owner:王凤平
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