49results about How to "Reduce dust removal pressure" patented technology

The invention discloses automatic feeding and dust removing integrating equipment of a concrete pump for mine and relates to matched feeding and dust removing integrating equipment for a novel gob-side entry retaining filling technique. The automatic feeding and dust removing integrating equipment of the concrete pump for mine comprises a stand, a primary belt type conveyor, a vibrating sieve, a secondary belt type conveyor, a filling pump and a wet type vibrating string dust remover; a group of dust-proof covers is arranged above each of the primary belt type conveyor and secondary belt type conveyor, each group of dust-proof covers comprises two segments of rectangular sealing dust-proof covers and one segment of organic glass dust-proof cover, the two segments of rectangular sealing dust-proof covers are respectively connected with the stand, the organic glass dust-proof cover is hinged to the stand through a hinge, the organic glass dust-proof cover is arranged between the two segments of rectangular sealing dust-proof covers, a sealing ring is arranged between each segment of rectangular sealing dust-proof cover and the organic glass dust-proof cover, and the organic glass dust-proof cover is connected with a handle. The automatic feeding and dust removing integrating equipment of the concrete pump for mine is capable of preventing dust diffusion, the material bag transportation situation in the belt type conveyors can be observed through the organic glass dust-proof covers, and dust in the belt type conveyors can be cleaned conveniently.

The invention discloses a cyclone drying and solvent recycling system, which is provided with a drying host machine, a bag-type dust removing device, a draught fan, a composite condensing device, a blower, a heater and a filter, wherein the upper part of the machine body cavity of the drying host machine is provided with an air current guide piece; the air current guide piece comprises a core pipe and a spiral band fixed on the core pipe; a spiral groove serves as a spiral air current channel; the back end of the spiral air current channel is communicated with a sedimentation chamber; the edge of the upper half part of the spiral band is fixed on the inner wall of the machine body cavity; the lower part of the machine body cavity is provided with a pair of stirring shafts; and each stirring shaft is provided with multiple pairs of paddle shoveling plates and coulters. By adopting the cyclone drying and solvent recycling system, the application range of fluidization drying is expanded, paste, slurry, particle, powder and filter cake materials can be dried, and crushing and drying are completed in one dryer. The volume drying intensity of the cyclone drying and solvent recycling system is far higher than that of ordinary fluidization drying equipment, the final water content can be lowered to an extremely low value in one drying host machine, and the defect of strict requirement for air current material drying on the initial water content of a material is overcome.

The invention discloses an energy-saving and waste-reducing flue gas recycling jacket rotary kiln and application thereof. The rotary kiln comprises a kiln head, a kiln body, a combustion chamber and dustsettling chambers; the kiln body comprises an outer kiln and an inner kiln located in the outer kiln, and the combustion chamber is arranged at the joint of the kiln head and the outer kiln; the dustsettling chambers comprise the first dust settling chamber and the second dust settling chamber, and the first dust settling chamber and the second dust settling chamber are separated from each other; the first dust settling chamber is connected with the inner kiln and used for collecting and treating flue gas of the inner kiln; the second dust settling chamber is connected with the outer kiln and used for collecting and treating flue gas of the outer kiln; and a flue gas outlet of the first dust settling chamber is connected with the combustion chamber, and the combustion chamber is used for combusting the flue gas flowing out of the first dust settling chamber. According to the energy-saving and waste-reducing flue gas recycling jacket rotary kiln and the application thereof, a conventional treatment path for the flue gas of the rotary kiln in the prior art is broken through for the first time, the quality-divided and flow-divided treatment of the fuel combustion flue gas (namely the flue gas of the outer kiln) and the material pyrolysis waste gas (namely the flue gas of the inner kiln) is realized, and secondary combustion of gaseous pollutants in the flue gas and fuel which is not fully combusted is realized.

The invention belongs to the technical field of pyrolysis of waste tires and mainly relates to a self-dust-removal type pyrolyzing and cracking system for the waste tires based on regenerative radiant tube heating. The self-dust-removal type pyrolyzing and cracking system is used for preparing clean combustible gases. Aiming at the defects in the prior art, the invention designs and develops a self-dust-removal type pyrolyzing and cracking reaction system for the waste tires. The reaction system can perform two operations of pyrolyzing and cracking; oil gas generated by pyrolyzing enters into a particle bed dust removing device; after the oil gas is subjected to filtering and dust removal, clean oil gas enters a cracking chamber, so that the dust removing pressure of a subsequent process is reduced, and tar macromolecules are cracked into small molecule gaseous hydrocarbons. According to a reactor, a large amount of cracking gases can be generated, thereby solving the problem that produced pyrolytic tar is difficult to utilize, and really realizing clean and efficient utilization of the waste tires.

The invention belongs to the technical field of refuse pyrolysis, and mainly relates to an automatic-dust-removal refuse pyrolysis and cracking system which is used for preparing clean combustible gas. In order to overcome the defects in the prior art, the invention provides an automatic-dust-removal refuse pyrolysis and cracking system. The reaction system can perform pyrolysis and cracking; oil gas generated by the pyrolysis chamber enters a particle bed for dust removal by a particle bed dust remover, and the clean oil gas enters a cracking chamber for deep cracking, thereby lowering the dust removal pressure at the back end; and the macromolecular tar molecules are cracked into micromolecular gaseous hydrocarbons, so the reactor can generate abundant cracked gas, thereby avoiding the problem of difficulty in utilizing the produced pyrolyzed oil, implementing refuse harmless treatment and dioxin zero discharge in deed, changing wastes into valuable substances, and satisfying the technical requirements for refuse comprehensive treatment in China.

The invention discloses an air filter based on the centrifugal principle. The air filter comprises a centrifugal dust removing chamber and a first filtering chamber, wherein the centrifugal dust removing chamber comprises an outer chamber and an inner chamber arranged in the outer chamber, and a first air inlet is formed in the outer chamber; and the bottom of the outer cavity is provided with an air outlet pipe which communicates with the inner cavity, and the air outlet pipe is arranged along the side wall of the inner cavity in the tangential direction. According to the air filter, water in a spraying disc is sprayed on the inner wall of the inner cavity to form a water film and adhere to dust thrown on the inner wall of the inner cavity, so that the purpose of pre-dedusting is achieved; and meanwhile, in the falling process of the water along the inner wall of the inner cavity, the air can play an air-cooling role, and then the water temperature is lowered.

The invention discloses a salt-contained waste liquid incineration device and technology lowering dust harm and belongs to the field of salt-contained waste liquid processing. The salt-contained waste liquid incineration device lowering dust harm structurally comprises an incinerator, a combustor, an air blower and a waste liquid atomizing spray nozzle. The lower portion of the incinerator is provided with an outlet flue. The waste liquid atomizing spray nozzle is arranged on the upper portion of an evaporation chamber. The inlet end of the evaporation chamber is provided with a circulating flue. The outlet end of the evaporating chamber is connected with the inlet end of the circulation draught fan through a pipeline. The outlet end of the circulating draught fan is connected with the inlet end of the dust collector through a pipeline. The outlet end of the dust collector is connected with the incinerator through a pipeline. The salt-contained waste liquid incineration device and technology lowering dust harm have the advantages that evaporation of the salt-contained waste liquid is conducted outside the incinerator, so that the service lives of the waste liquid atomizing nozzle and the incinerator are prolonged, combustible harmful matter in the salt-contained waste liquid can stay for a longer time in the incinerator, so that decomposition of the combustible harmful matter is fuller, solid particles formed in the salt-contained waste liquid can be effectively removed, the generation amount of dioxin is reduced, and the harm of salt to the incinerator is relieved.

The invention discloses an efficient cyclone dust removal device. The efficient cyclone dust removal device comprises an outer shell, an inner shell and a secondary dust removal assembly; the upper part of the inner shell protrudes outside the outer shell and is rotatably connected with the outer shell, the inner shell is driven to rotate by a double-way motor through a driving piece, and the upper edge of the inner shell shrinks upwards and inwards to form an opening of a cone frustum; the secondary dust removal assembly comprises a dust removal net, a net cleaning groove, a dust pipe, an exhaust fan, a dust detector and a controller; the dust removal net is horizontally arranged on the upper part of the inner shell; the net cleaning groove is formed below the dust removal net, and the top of the net cleaning groove is provided with an opening in contact with the dust removal net; the dust pipe is arranged below the net cleaning groove and connected with the bottom of the net cleaninggroove, and an electromagnetic valve is arranged on the lower part of the dust pipe; an air inlet of the exhaust fan is communicated with the dust pipe, located above the electromagnetic valve, through an air inlet pipe; the dust detector is arranged in the inner shell; and the controller is arranged on the outer shell, and electrically connected with the double-way motor, the electromagnetic valve and the exhaust fan. The invention further provides a dust removal method of the efficient cyclone dust removal device. The efficient cyclone dust removal device has the advantages that the effecton removing particles with the small grain sizes is good, and the dust removal efficiency is high.

The invention belongs to the technical field of coal pyrolysis and splitting gas production and fuel gas combustion power generation, and in particular relates to a self dust collection type coal pyrolysis and splitting gas production combined fuel gas power generation system based on a heat accumulation radiation tube heating. The system comprises a pyrolysis hopper, a first feeding device, a pyrolysis and splitting reactor, a heat accumulation type radiation tube, a thermal insulating brick wall, a communicating component, a granule bed dust collection device, a spraying tower, a fuel gas tank and a power generator set, wherein the pyrolysis and splitting reactor comprises a feeding hole, a pyrolysis chamber, a splitting chamber and a splitting gas outlet. The self dust collection type coal pyrolysis and splitting gas production combined fuel gas power generation system provided by the invention is simple in structure, convenient to operate, uniform in temperature distribution and good in heating effect; the granule bed dust collector is arranged at a pyrolysis chamber oily gas outlet; after an oily gas generated from the pyrolysis chamber is subjected to dust collection of a granule bed, a clean oily gas is fed into the splitting chamber for deep splitting, a small part of a splitting gas is fed into the radiation tube for combustion, and the reset fuel gas is fed into the fuel gas power generator set for combustion and power generation, so that the problem that pyrolysis oil contains dust is solved, and the dust collection pressure of a rear end is also alleviated.

The invention relates to a flue gas purification system for a roasting furnace of a prebaked anode used for aluminum electrolysis. The system mainly includes, in a successively connected manner in series, an SNCR denitration and dust and tar removal apparatus, a sphere heat accumulation oxidizing furnace, an S-shaped flue desulfuration reactor, and a bag-type dust remover. Flue gas is driven by adraught fan and is fed into the SNCR denitration and dust and tar removal apparatus, then successively passes through the sphere heat accumulation oxidizing furnace, the S-shaped flue desulfuration reactor and the bag-type dust remover, and finally is exhausted via a chimney when the flue gas reaches treatment standard.

The invention relates to the technical field of gas production through pyrolysis and cracking of coal, in particular to a self-dedusting type system for producing a synthetic gas through pyrolysis and cracking of coal based on heating of a regenerative radiant tube. The system comprises a pyrolysis hopper, a first feeding device, a pyrolysis and cracking reactor, a spray tower, a transform furnace and a fuel gas tank, wherein the pyrolysis and cracking reactor comprises a feeding port, a pyrolysis chamber, a cracked gas outlet, the regenerative radiant tube, a heat insulating brick wall, a communicating member and a granular bed dedusting device. The self-dedusting type system for producing the synthetic gas provided by the invention is simple in structure, convenient to operate, uniform in temperature distribution and excellent in heating effect; the reactor comprises the pyrolysis chamber and a cracking chamber; the granular bed dedusting device is arranged at an oil gas outlet of the pyrolysis chamber; after an oil gas produced by the pyrolysis chamber is dedusted by a granular bed, the clean oil gas enters the cracking chamber and is subjected to deep cracking, so as to reduce the dedusting pressure of a rear end, avoid a problem that a pyrolysis oil contains dust, and truly realize the clean and efficient utilization of fossil fuels.

Disclosed is a powder metallurgy sintering waste material dust removing device. The powder metallurgy sintering waste material dust removing device comprises a negative pressure dust removal integrated system and a waste material conveying system. A small front-mounted separation tower is disposed at a waste material inlet of the negative pressure dust removal integrated system. The separation tower comprises an upper separation chamber and lower collecting buckets. Material-air separators are disposed at the bottoms of the collecting buckets. The upper separation chamber is connected with a conveying pipe in the waste material conveying system. A vertical arc-shaped baffle is disposed at a waste material inlet and in the upper separation chamber. The curved surface of the baffle faces an outlet of the conveying pipe. A channel capable of allowing waste materials to enter the waste material inlet is reserved between the top of the baffle and the upper separation chamber. By means of the powder metallurgy sintering waste material dust removing device, as primary separation is conducted before the waste materials enter the negative pressure dust removal integrated system, the dust removal pressure of the system is greatly relieved, and the operation efficiency and dust removal effect of equipment are improved; the additionally arranged small front-mounted separation tower is simple in structure and convenient to mount and maintain; the dust removal efficiency is further improved by means of the arc-shaped baffle; and the powder metallurgy sintering waste material dust removing device is convenient to manufacture and low in maintaining cost.

The invention belongs to the technical field of biomass pyrolysis and mainly relates to a self-dust-removal type pyrolyzing and cracking system for biomass based on regenerative radiant tube heating. The system comprises a pyrolysis hopper, a pyrolyzing and cracking reactor, regenerative radiant tubes, a heat insulation brick wall, a communicating member, a particle bed dust removing device, a cracking gas cyclone separator, a spraying tower and a gas tank, wherein the pyrolyzing and cracking reactor comprises a feed opening, a pyrolysis chamber, a cracking chamber and a cracking gas outlet; the cracking gas cyclone separator is connected with the cracking gas outlet, a semicoke conveying device and the spraying tower. The reaction system disclosed by the invention has the advantages of simple structure, convenience in operation, uniform temperature distribution, good heating effect, high utilization rate of raw materials and suitability for popularization; the biomass with the size of 20mm or less can be treated.

The invention relates to a metal dedusting device. The metal dedusting device has a negative pressure dedusting integrated system and a waste conveying system, a waste inlet of the negative pressure dedusting integrated system is equipped with a preposed small separation tower, the separation tower includes an upper separation chamber and a lower collecting hopper, and the bottom of the collectinghopper is equipped with a material gas separator; the upper separation chamber is connected to a conveying pipe in the waste conveying system, a vertical arc-shaped baffle plate is mounted at a wasteinlet in the upper separation chamber, the curved surface of the baffle plate faces the outlet of the conveying pipe, and a channel for waste to enter the waste inlet is left between the baffle platetop and the upper separation chamber. According to the invention, as primary separation is carried out before waste enters the negative pressure dedusting integrated system, the dedusting pressure ofthe system is greatly alleviated, and the equipment operation efficiency and dedusting effect are improved. The added preposed small separation tower has a simple structure, is convenient for installation and maintenance, the arc-shaped baffle plate further improves the dedusting efficiency, also the making is convenient, and the maintenance cost is low.

The invention belongs to the technical field of pyrolyzing and cracking of fossil fuel and in particular relates to a self-dust-removal type pyrolyzing and cracking tube cracking reactor for resources such as oil shale and coal. The self-dust-removal type pyrolyzing and cracking tube cracking reactor is used for preparing combustible gases and semicoke products. Aiming at the defects in the prior art, the invention designs and develops the self-dust-removal type pyrolyzing and cracking tube cracking reactor; a pyrolysis chamber and a cracking chamber are integrally designed in the reactor; oil gas generated by the pyrolysis chamber enters into a particle bed dust removing device; after the oil gas is subjected to dust removal by the particle bed dust removing device, clean oil gas enters the cracking chamber for deep cracking, so that the dust removing pressure at the rear end is reduced; cracking tubes are spirally distributed in the cracking chamber and are distributed around radiant tubes in a zigzag manner; the stay time of the oil gases in the cracking tubes is long, and tar macromolecules are cracked into small molecule gaseous hydrocarbons. According to the reactor, a large amount of cracking gases can be generated, so that the problem that produced pyrolytic tar contains dust is solved, and clean and efficient utilization of the fossil fuel is really realized.

The invention discloses a reciprocating type section mill smoke and dust collecting device which comprises a dust suction hood and a dust suction pipe, the dust suction hood is formed by hinging two hood bodies, each hood body comprises an outer hood and an inner hood, the outer hood is connected with the periphery of the inner hood, a cavity is formed between the outer hood and the inner hood, dust suction holes are evenly formed in the inner hood, and the dust suction pipe is arranged in the cavity. The interior of the inner cover is divided into a plurality of dust suction chambers through a plurality of partition plates, the lower end of the dust suction pipe is connected with a uniform distribution pipe, the uniform distribution pipe is connected with pull pipes with the number corresponding to that of the dust suction chambers, the upper end of the outer cover is provided with an air outlet hole, the air outlet hole is connected with an arc-shaped suction pipe in sliding connection with the pull pipes, and each dust suction chamber corresponds to a suction pipe. And the side wall of the pull pipe is provided with an insertion plate for adjusting the air volume. The size of the opening of the dust hood can be adjusted according to requirements, generated water vapor and dust can be comprehensively absorbed, and the dust collection effect and efficiency of the dust hood are improved.

The upper layer of a cover body of the ladle cover is a dust removal wall, the lower layer of the cover body of the ladle cover is a protective ring, and a heat preservation protective cover is arranged in the protective ring; the argon conveying mechanism sequentially comprises an argon conveying opening, connecting pipes, argon blowing cavities and nozzles, the argon conveying opening is formed in the upper portion of the cover body, the gas inlet ends of the multiple sets of connecting pipes are connected with the argon conveying opening through branch cavities, the argon blowing cavities are formed in the cover body and comprise fan-shaped argon blowing cavities and annular argon blowing cavities, the gas supply ends of the connecting pipes are communicated with small openings of the fan-shaped argon blowing cavities, and the annular argon blowing cavities are communicated with small openings of the annular argon blowing cavities. A large opening of the fan-shaped argon-blowing cavity is communicated with the side wall of the annular argon-blowing cavity; a plurality of nozzles are arranged at the bottom of the annular argon-blowing cavity; the bottom end of the dedusting connecting pipe of the dedusting mechanism penetrates into the cover body, the main dedusting opening is communicated with the interior of the cover body through the dedusting connecting pipe, and a plurality of dedusting holes are formed in the dedusting wall. The heat preservation protection cover protects the interior of the ladle cover, a negative pressure cavity is formed in the ladle cover through the main dust removal opening and the external dust suction device, and gas and smoke dust generated by the steel ladle are sucked into the dust removal holes when meeting the dust removal wall and are treated for dust removal.