CN1141418A - Air circulationf reezing technology for making gelatin powder and equipment thereof - Google Patents
Air circulationf reezing technology for making gelatin powder and equipment thereof Download PDFInfo
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- CN1141418A CN1141418A CN 95111135 CN95111135A CN1141418A CN 1141418 A CN1141418 A CN 1141418A CN 95111135 CN95111135 CN 95111135 CN 95111135 A CN95111135 A CN 95111135A CN 1141418 A CN1141418 A CN 1141418A
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Abstract
The air refrigeration, drying, freezing and pulverizing of the colloidal particles, and colloidal powder backheating are implemented in a closed system, i.e. the compressed air delivered from the air compressor is heat-exchanged with tail gas and pulverized colloidal particles is then expanded for refrigeration. The raw material colloidal particles are frozen by cold-air in the closed system, then pulverized so as to obtain the fine colloidal powder. The raw material colloidal particles can be dried by heat-exchanged tail gas, and the dried colloidal particles and backheated colloidal powder don't cluster. Said process is low in power consumption, and can be controlled by computer.
Description
The invention belongs to cooling or Refrigeration Technique field (F25D), relate to a kind of freezing method of air circulation of utilizing, junked tire or rubber are processed into the production technology of fine glue powder, and implement the employed apparatus system of this technology.
Junked tire or rubber can be made fine glue powder with freezing comminuting method.Traditional handicraft is to make cold-producing medium with liquid nitrogen or dry ice, to blob of viscose or micelle immersion or spray, makes it to drop to below the vitrification point and pulverizes.The production cost of this method is very high, has limited it in industrial application.The US3818976 United States Patent (USP) discloses the cold rubber powder manufacturing process of a kind of gas double round robin.First circularly cooling of this technology, second circulation obtains cold through heat exchange from first circulation, and micelle is freezing, pulverizing.This technology is compared with liquid nitrogen freezing, is a progress, but still exists the defective of waste energy.It is 91109325.7 that Patent Office of the People's Republic of China discloses application number on August 12nd, 92, denomination of invention is the technical scheme of " method and apparatus of air cooling freeze production of glue powder ", above-mentioned United States Patent (USP) is improved, adopted single air refrigeration cycle, saved energy.But this scheme still is not proper " single air cycle refrigeration ", and the part with the freon refrigeration polyphone is arranged in its flow process.And use freon just to bring the destruction environment and be about to face problem such as international forbidding.This technology is that to adopt mode that three refrigerating chambers regularly switch successively that micelle is carried out static state freezing simultaneously.Like this, the pre-freezing two procedures of cold-peace is not that order is carried out, but hocket, promptly same refrigerating chamber will replace as the freezing equipment use of pre-cold-peace, and the ascending, descending of refrigerating chamber self-temperature causes the waste of energy; Simultaneously micelle does not have drying process before freezing, in static refrigerating chamber during freezing switchings, can freeze agglomeratingly, is difficult for discharge, makes and produces pause; After micelle was ground into smart powder, because of there not being the backheat operation, the cold of low temperature rubber powder was not recycled, and when rubber powder entered normal temperature air simultaneously, its surface can be agglomerating because of dewfall, is difficult for guaranteeing dry.
For overcoming these deficiencies of prior art, task of the present invention provides a kind of new air circulating refrigerating process of producing rubber powder and device thereof, this technology and device should be saved energy than prior art, utilize the cold of compressed-air actuated heat and Cryogenic air as much as possible, should be able to remove simultaneously the moisture content of micelle, guarantee the drying of rubber powder, eliminate the clustering phenomena in producing.This technology also will create conditions for realizing producing with automated production continuously.
The scheme of finishing this invention task is as follows: the single cycle air-refrigeration system of setting up a sealing, with the air is cold-producing medium, the freezing back of micelle is pulverized, make rubber powder, it is characterized in that: the backheat of the drying of air cooling that carries out and micelle, freezing, pulverizing and rubber powder successively, all in same closed system.Wherein: the refrigeration of air can adopt prior art, also can adopt twice compression described in the embodiment of the invention 1 and swell refrigeration technology; The dry technology of micelle is to utilize existing " mechanism of mass transfer (handled by dry air, material surface moisture content is passed to air) " theory, is finished by fluidizing drying bed; Refrigerating process can adopt one-level freezing, also can adopt secondary, three grades ... so that it is multistage freezing; Disintegrating process can adopt the liquor-saturated machine of existing low temperature powder (plain grinding) to pulverize equally, also can adopt the low temperature eddy pulverizer that provides in the embodiment of the invention to pulverize; Said backheat operation can adopt the mode of heat exchange to finish.Above technical scheme can further be specially: by compressor air is compressed to certain pressure, this compressed air is higher than normal temperature because of compression.It by heat exchange to the heating of the tail gas of native system, simultaneously again with the fine glue powder heat exchange that has crushed, make the rubber powder backheat, the tail gas after heating carries out drying to the raw material micelle.Compressed air after twice heat exchange cooling, through the air expander swell refrigeration, cold air carries out to dry raw material micelle in closed system that one or more levels is freezing, pulverizes after making it to reach vitrification point, obtains fine glue powder.The device of implementing above-mentioned technology is as follows: the hot limit that is connect heat exchanger by the outlet of air compressor through pipeline, the cold edge joint exhaust pipe or the rubber powder pipeline of heat exchanger, the compressed air piping of hot limit outlet connects the air expander inlet, and the decompressor outlet connects afterbody cooling bed (also claiming freezing fluid bed).The outlet conduit of former feed bin connects dry fluid bed, and the air intake of dry fluid bed inserts the tail gas of aforesaid heat exchangers outlet.Gas solid separation mechanism is established in dry fluid bed outlet, the material outlet of this mechanism connects aforesaid one or more levels cooling bed, freezing by aforesaid cryogenic gas to micelle, gas solid separation mechanism is established in the cooling bed outlet, the pipeline of this gas solid separation mechanism outlet is divided into two, and one is an air duct, inserts the cold limit of heat exchanger, compressed air before the hot edge joint of same heat exchanger goes into to expand, the outlet of cold limit takes back the import of compressor; The freezing micelle pipeline of gas solid separation mechanism material outlet inserts pulverizer, and the rubber powder of making connects the cold limit of above-mentioned heat exchanger, after the backheat, connects finished bin or packing machine through gas solid separation mechanism.The exhaust pipe of this gas solid separation mechanism outlet connects the cold limit of above-mentioned heat exchanger, and cold limit exports the exhaust pipe that heat exchange heats up, and connects dry fluid bed, forms closed cycle system.Wherein said air compressor can be general compressor, also can be centrifugal compressor.Said gas solid separation mechanism can be a gas-solid separator of the prior art, also can be cyclone separator and lock wind removal device.
Above-mentioned technology and equipment also can further specifically improve as follows: after by compressor air being compressed to certain pressure, carry out drying, again secondary booster.Compressed air is by the tail gas heating (tail gas through heating after to raw material micelle carry out drying) of heat exchange to native system, simultaneously again with the fine glue powder heat exchange that has crushed, make the rubber powder backheat, in twice heat exchange cooling, this compressed air also can be through further cooling of cooler (or ice chest), and then through the air expander swell refrigeration, cold air carries out to the raw material micelle of drying in closed system that one or more levels is freezing, pulverize after making it to reach vitrification point, obtain fine glue powder.The freezing back of each grade gas solid separation, air enters the cold limit of cooler (or ice chest), is the compressed air cooling.Being compressed air heat is used for micelle is carried out drying to this strand air more than the normal temperature.Rubber powder that comes out from pulverizer and the compressed air heat exchange back packing of rising again.Its device is as follows: said air compressor is provided with two-stage, is provided with drying tower between two stage compressor, and drier is housed in the drying tower.Simultaneously can be provided with the desiccant regeneration device by prior art or special technology.Compressed air inserts the hot limit of heat exchanger through pipeline, exhaust pipe and rubber powder pipeline connect the cold limit of heat exchanger simultaneously, the compressed air of hot limit outlet inserts cooler or ice chest, insert air expander then, the cold air of decompressor outlet enters one or more levels cooling bed, connect the cold limit of above-mentioned cooler or ice chest then, dry micelle connects the one-level cooling bed through pipeline, fluid bed enters the next stage cooling bed through the freezing micelle of gas-solid separator output, the afterbody cooling bed is imported pulverizer through the micelle of gas-solid separator output through pipeline, pulverizer through the rubber powder of gas-solid separator output after backheat, gas solid separation once more in gas-solid separator connects finished bin or packing machine at last.Said air compressor can adopt general air compressor machine or Presseseccentric in the above technology, also can adopt different compressors respectively with the second level in the first order.Said " certain pressure " can be 0.3-0.5Mpa by the feedstock property decision of required pulverizing, also can be up to 1.0Mpa, is generally 0.6-0.7Mpa.Said " being higher than normal temperature " also need be decided by compression, and commonly used generally is 70 °-80 ℃.
Rubber powder provided by the present invention is produced refrigerating process and device thereof, owing to adopted single air cycle refrigeration, equipment to form a complete closed system.Wherein air is a cold-producing medium, and as the delivery air of micelle in the flow process, its temperature keeps the required temperature difference of heat exchange with micelle of being processed or rubber powder all the time again.During by this explained hereafter, pre-cold-peace deep cooling each several part is worked the energy loss of having avoided the lifting of equipment self-temperature to cause respectively in its equipment.Therefore; the present invention saves energy than prior art; accomplished the cold that utilizes compressed-air actuated heat and Cryogenic air as much as possible; simultaneously can remove micelle and the contained moisture content of rubber powder; micelle or rubber powder clustering phenomena in producing have been eliminated; on this technology basis, also can realize continuous, automated production.
Now in conjunction with the accompanying drawings with embodiment, be described further.
Fig. 1 is technological process and the installation drawing of embodiment 1.
Embodiment 1, and the particle diameter of raw material micelle is below the 3-5 millimeter.With reference to Fig. 1: air compressor (1) sucks air from atmosphere, and it is compressed to certain pressure, removes oil, the water of free state through oil water separator (2).After the molecular sieve adsorption drying, enter centrifugal compressor (4) supercharging for the second time that turbo-expander (12) drives in one of drying tower (3).The hot-air of secondary booster is through the cooling of first order regenerator (5), water cooler (7), second level regenerator (8), first order ice chest (9), second level ice chest (10), arrive turbo-expander (12) through filter (11), through the decompressional expansion refrigeration, air drops to required temperature, and (vitrification point of rubber is at-70 ℃ to-80 ℃.In this technology, air themperature is-140 ℃ to-150 ℃).Cryogenic air enters micelle cooling bed (13) and micelle is carried out freezing, and in cyclone separator (14), air separates with freezing micelle.The Cryogenic air of this cyclone separator (14) outlet is divided into two strands, after most of process filter (15) enters the cold limit heat exchange of second level ice chest (10), enter second level micelle cooling bed (16), micelle is carried out second level cooling after, gas solid separation in second level cyclone separator (17).Cold air cools off micelle first to first order micelle cooling bed (19) after entering the cold limit heat exchange of first order ice chest (9) through filter (18), in first order cyclone separator (20) after the gas solid separation, process filter (21) enters the cold limit of forecooler (7), continues heat exchange with compressed air.Through deduster (22), get back to the import of air compressor (1) again.Follow freezing micelle to enter low temperature eddy pulverizer (24) from another burst Cryogenic air that cyclone separator (14) comes out through control valve (23), the heat that produces when pulverizing with the balance micelle.After micelle is ground into rubber powder, this part air is discharged in company with rubber powder, by way of the cold limit of second level regenerator (8) and first order regenerator (5) by pulverizer (24) supercharging, make the hot-air heat exchange of rubber powder and air and compressor (4) secondary booster, reach more than the normal temperature.Rubber powder and air are in cyclone separator (25) lining gas solid separation.The above air of this strand normal temperature enters micelle impulse drying fluid bed (26) from cyclone separator (25) outlet, after micelle carried out drying, in cyclone separator (27) lining gas solid separation, converge and enter the import that deduster (22) is got back to air compressor (1) through filter (28) and most return air.As two molecular sieve to drying tower (3), when regenerating the back cold blowing, shut off valve (29), open valve (30), this strand air enters deduster (31), after two cold blowings to drying tower (3), through water cooler (32) and forced air cooler (33), with turning back to deduster (22) after its cooling, still get back to the import of air compressor (1).Open valve (50,51) when therefore air compressor (1) starts and suck atmosphere, after starting was stable, shut off valve (50) was to certain aperture gradually, and keeping air compressor (1) inlet pressure is that atmospheric pressure gets final product.This moment, air compressor (1) the inhaled air overwhelming majority was the dry air that returns, and inhaled air only is the gas leakage that replenishes in the flow process from atmosphere, to keep essential pressure and flow in the air circulation refrigeration system.So just formed the air circulation refrigeration system of enclosed.Be to implement regeneration, suck the atmosphere supercharging by air blast (34) to molecular sieve in the drying tower, be warmed to through electric airheater (35) temperature required, drying tower (3) three, clear sound device (36) drains into atmosphere.Totally three in drying tower (3) is respectively absorption, cold blowing, regeneration, switches to use, to keep continuous production.The micelle that normal temperature is pulverized from micelle storehouse and vibrating bunker (37) blanking, through spiral quantitative dispenser (38), is sent into impulse drying fluid bed (26), arrives the interior separate and subside of cyclone separator (27) after the air drying that is dried.Through lock wind removal device (39) and screw feeder (40), to send in the first order cooling bed (19), micelle cools off first.Micelle is separate and subside in cyclone separator (20), sends in the second level cooling bed (16) through lock wind removal device (41) and screw feeder (42), and micelle cools off for the second time.Micelle is separate and subside in cyclone separator (17), send into cooling bed (13) through lock wind removal device (43) and screw feeder (44), micelle further is cooled to below the vitrification point (70 ℃ to-80 ℃), separate and subside in cyclone separator (14), enter low temperature eddy pulverizer (24) through lock wind removal device (45), freezing micelle is ground into rubber powder.Rubber powder and the air followed as previously mentioned, after the backheat cyclone separator (25) in separate and subside, send into rubber powder classifying screen (47) by locking wind removal device (46), enter rubber powder storehouse and vibrating bunker (48) after the screening respectively, pack by packing machine (55).The undesirable rubber powder in screening back is sent in the outlet conduit of cyclone separator (25) by lock wind removal device (49), and dry, the step-by-step freezing of row is qualified until pulverizing again.For realizing computer control and management, be provided with flow sensor (56) in this device, in the turbo-expander outlet temperature sensor (57) is arranged, the temperature sensor (59) of low temperature eddy pulverizer outlet etc., each sensor connects computer.Computer calculates refrigerating capacity according to the data on flows of sensor (56) and the temperature data of sensor (57).Control the feeding quantity of micelle again by the rotating speed of control frequency modulation motor (58).While is according to the aperture of the temperature data control valve (23) of (59), to distribute cold.Computer also can be adjusted the area of flow or fluid bed according to the flow velocity of particle size analysis and fluid bed (16,19,26), guarantees the best fluidized state and the heat exchange effect of micelle, and refrigerating capacity is made full use of.For guaranteeing safe operation, be provided with safety device in the native system: the outlet of centrifugal compressor (4) is provided with check-valves (52) and anti-asthma valve (60), flows backwards and surge the damage turbo-expander to prevent air-flow.Made emergency switching-off valve (53) and by-passing valve (54) at the decompressor end, suddenly have a power failure or other in emergency circumstances, the protection turbo-expander.All control valves are controlled by computer.The device of above technology can details are as follows once more: the air circulation refrigerating plant, it is characterized in that: atmosphere is through air compressor (1) supercharging, through oil water separator (2), again after the interior molecular sieve adsorption drying of one of drying tower (3), enter the centrifugal compressor (4) that turbo-expander (12) drives, the hot-air of secondary booster is through first order regenerator (5), water cooler (7), second level regenerator (8), first order ice chest (9), the cooling of second level ice chest (10), arrive turbo-expander (12) through filter (11), freeze through decompressional expansion, Cryogenic air enters micelle cooling bed (13), connect cyclone separator (14) again, the pipeline of cyclone separator (14) outlet is divided into two strands, after one enters the cold limit heat exchange of second level ice chest (10) through filter (15), enter second level micelle cooling bed (16), again through second level cyclone separator (17) gas solid separation, after cold air enters the cold limit of first order ice chest (9) through filter (18), to first order micelle cooling bed (19), in first order cyclone separator (20) after the gas solid separation, enter the cold limit of forecooler (7) through filter (21), get back to the import of air compressor (1) again through deduster (22), another pipeline of cyclone separator (14) outlet follows freezing micelle to enter low temperature eddy pulverizer (24) through control valve (23), then by way of the cold limit of second level regenerator (8) and first order regenerator (5), the hot edge joint of this two-stage regenerator is gone into the hot-air of compressor (4) secondary booster, cyclone separator (25) is established in the pulverizer outlet, cyclone separator (25) outlet connects micelle impulse drying fluid bed (26), be connected on cyclone separator (27) again, process filter (28) enters deduster (22) after converging with most return air, take back the import of air compressor (1), compressor (1) inlet is provided with valve (50,51), whole device is the air circulation refrigeration system of enclosed, material from micelle storehouse and vibrating bunker (37) through screw feeder (38), send into impulse drying fluid bed (26), after connect cyclone separator (27), send in the first order cooling bed (19) through lock wind removal device (39) and screw feeder (40) again, the fluid bed outlet connects cyclone separator (20), send into second level cooling bed (16) through lock wind removal device (41) and screw feeder (42), cyclone separator under this fluid bed (17) again, lock wind removal device (43) and screw feeder (44) are sent into cooling bed (13), cyclone separator under it (14) again, lock wind removal device (45) enters low temperature eddy pulverizer (24), the rubber powder of pulverizer outlet and the air duct of following, after connecing the cold limit of first order regenerator and second level regenerator, connect cyclone separator (25), lock wind removal device (46) is sent into rubber powder classifying screen (47), the fine powder outlet of classifying screen enters rubber powder storehouse and vibrating bunker (48), connect packing machine (55) at last, the outlet that the meal outlet of classifying screen is sent into cyclone separator (25) by lock wind removal device (49) is received in the preceding pipeline of dry fluid bed, the regenerating unit of molecular sieve is: air blast (34) connects electric heater (35), connect drying tower and silencer (36), the logical atmosphere of silencer outlet, totally three in drying tower is connected with transfer valve with pipeline.The drying tower outlet is provided with flow sensor (56), in the turbo-expander outlet temperature sensor (57) is arranged, the temperature sensor (59) of low temperature eddy pulverizer outlet, the output termination computer of each sensor, fanout connects the control circuit of frequency modulation motor (58) and control valve (23).Also be provided with safety device in the native system, the outlet of centrifugal compressor (4) is provided with check-valves (52) and anti-asthma valve (60), has made emergency switching-off valve (53) and by-passing valve (54) at the decompressor end, and all control valves are controlled by computer.
Claims (10)
1, produces the air circulating refrigerating process of rubber powder, with the air is cold-producing medium, and the freezing back of micelle is pulverized, and makes rubber powder, it is characterized in that: the drying of air cooling that carries out and micelle, freezing, pulverizing and rubber powder backheat successively, all in the closed system that coexists.
2, according to the described air circulating refrigerating process of producing rubber powder of claim 1, it is characterized in that: air is compressed to certain pressure by compressor, compressed air is higher than normal temperature because of compression, it is by the tail gas heating of heat exchange to native system, again with the fine glue powder heat exchange that has crushed, make the rubber powder backheat, tail gas after heating carries out drying to the raw material micelle, compressed air after twice heat exchange cooling, through the air expander swell refrigeration, cold air carries out to dry raw material micelle in closed system that one or more levels is freezing, pulverizes after making it to reach vitrification point, obtains fine glue powder.
3, according to the described air circulating refrigerating process of producing rubber powder of claim 2, it is characterized in that: after by compressor air being compressed to certain pressure, carry out drying, secondary booster again, compressed air is by the tail gas heating of heat exchange to native system, again with the fine glue powder heat exchange that has crushed, make the rubber powder backheat, tail gas after heating carries out drying to the raw material micelle, in twice heat exchange cooling, this compressed air is also further lowered the temperature through cooler or ice chest, then through the air expander swell refrigeration, cold air carries out to the raw material micelle of drying in closed system that one or more levels is freezing, pulverize after making it to reach vitrification point, obtain fine glue powder, the freezing back of each grade gas solid separation, air enters the cold limit of cooler or ice chest, is the compressed air cooling.
4, according to the described air circulating refrigerating process of producing rubber powder of claim 3, it is characterized in that: air compressor (1) sucks air from atmosphere, with its compression after oil water separator (2) is removed the oil of free state, water, after the interior molecular sieve adsorption drying of drying tower (3), enter centrifugal compressor (4) supercharging for the second time that turbo-expander (12) drives, the hot-air of secondary booster is through first order regenerator (5), water cooler (7), second level regenerator (8), first order ice chest (9), the cooling of second level ice chest (10), arrive turbo-expander (12) through filter (11), freeze through decompressional expansion, Cryogenic air enters micelle cooling bed (13) and carries out freezing to micelle, in cyclone separator (14), air separates with freezing micelle, the Cryogenic air of cyclone separator (14) outlet is divided into two strands, after most of process filter (15) enters the cold limit heat exchange of second level ice chest (10), enter second level micelle cooling bed (16), after micelle carried out second level cooling, gas solid separation in second level cyclone separator (17), cold air enters the cold limit of first order ice chest (9) through filter (18), to first order micelle cooling bed (19) micelle is cooled off first after the heat exchange, in first order cyclone separator (20) after the gas solid separation, enter the cold limit of forecooler (7) through filter (21), continue heat exchange with compressed air, again through deduster (22), get back to the import of air compressor (1), follow freezing micelle to enter low temperature eddy pulverizer (24) from another burst Cryogenic air that cyclone separator (14) comes out through control valve (23), the heat that produces when pulverizing with the balance micelle, after micelle is ground into rubber powder, this part air is by pulverizer (24) supercharging, discharge in company with rubber powder, cold limit by way of second level regenerator (8) and first order regenerator (5), make the hot-air heat exchange of rubber powder and air and compressor (4) secondary booster, reach more than the normal temperature, rubber powder and air are in cyclone separator (25) lining gas solid separation, the above air of this strand normal temperature enters micelle impulse drying fluid bed (26) from cyclone separator (25) outlet, after micelle carried out drying, in cyclone separator (27) lining gas solid separation, converge and enter the import that deduster (22) is got back to air compressor (1) through filter (28) and most return air, the regeneration of molecular sieve in the drying tower, be to suck the atmosphere supercharging by air blast (34), heat three of drying tower (3) through electric airheater (35), silencer (36) drains into atmosphere, totally three in drying tower (3), be respectively absorption, cold blowing, regeneration, switch and use, to keep continuous production, the micelle that normal temperature is pulverized, from micelle storehouse and vibrating bunker (37) blanking, through spiral quantitative dispenser (38), send into impulse drying fluid bed (26), arrive the interior separate and subside of cyclone separator (27) after the air drying that is dried, send in the first order cooling bed (19) through lock wind removal device (39) and screw feeder (40), micelle cools off first, and micelle is separate and subside in cyclone separator (20), sends in the second level cooling bed (16) through lock wind removal device (41) and screw feeder (42), micelle cools off for the second time, micelle is separate and subside in cyclone separator (17), sends into cooling bed (13) through lock wind removal device (43) and screw feeder (44), and micelle further is cooled to below the vitrification point, separate and subside in cyclone separator (14), enter low temperature eddy pulverizer (24) through lock wind removal device (45), freezing micelle is ground into rubber powder, behind rubber powder and the air backheating followed in cyclone separator (25) separate and subside, send into rubber powder classifying screen (47) by lock wind removal device (46), enter rubber powder storehouse and vibrating bunker (48) after the screening respectively, by packing machine (55) packing, the outlet that the undesirable rubber powder in screening back is sent into cyclone separator (25) by lock wind removal device (49) is discharged in the pipeline, row is dry again, step-by-step freezing is qualified until pulverizing.
5, according to the described air circulating refrigerating process of producing rubber powder of claim 4, it is characterized in that: whole process flow is controlled and management by electronic computer: be provided with flow sensor (56) in the device, in the turbo-expander outlet temperature sensor (57) is arranged, the temperature sensor (59) of low temperature eddy pulverizer outlet, each sensor connects computer, computer is according to the data on flows of sensor (56) and the temperature data of sensor (57), calculate refrigerating capacity, control the feeding quantity of micelle again by the rotating speed of control frequency modulation motor (58), while is according to the aperture of the temperature data control valve (23) of (59), to distribute cold, computer is also according to particle size analysis and fluid bed (16,19,26) flow velocity is adjusted the area of flow or fluid bed, guarantee the best fluidized state and the heat exchange effect of micelle, refrigerating capacity is made full use of.
6, produce the air circulation refrigerating plant of rubber powder, it is characterized in that: the hot limit that connects heat exchanger by the outlet of air compressor through pipeline, the cold edge joint exhaust pipe or the rubber powder pipeline of heat exchanger, the compressed air piping of hot limit outlet connects the air expander inlet, the decompressor outlet connects one or more levels cooling bed, the outlet conduit of former feed bin connects dry fluid bed, the air intake of dry fluid bed inserts the tail gas of aforesaid heat exchangers outlet, gas solid separation mechanism is established in dry fluid bed outlet, the solid outlet of this mechanism connects aforesaid one or more levels cooling bed, gas solid separation mechanism is established in the cooling bed outlet, the pipeline of this gas solid separation mechanism outlet is divided into two, one is an air duct, insert the cold limit of heat exchanger, compressed air before the hot edge joint of same heat exchanger goes into to expand, the outlet of cold limit takes back the import of compressor, the freezing micelle pipeline of gas solid separation mechanism outlet inserts pulverizer, the rubber powder of making, connect the cold limit of above-mentioned heat exchanger, after the backheat, connect finished bin or packing machine through gas solid separation mechanism.
7, according to the described air circulation refrigerating plant of producing rubber powder of claim 6, it is characterized in that: said air compressor is provided with two-stage, between two stage compressor, be provided with drying tower, drier is housed in the drying tower, be provided with the desiccant regeneration device simultaneously, compressed air inserts the hot limit of heat exchanger through pipeline, exhaust pipe and rubber powder pipeline connect the cold limit of heat exchanger simultaneously, the compressed air of cold limit outlet inserts cooler or ice chest, insert air expander then, the cold air of decompressor outlet enters one or more levels cooling bed, connect the cold limit of above-mentioned cooler or ice chest then, dry micelle connects the one-level cooling bed simultaneously through pipeline, fluid bed enters the next stage cooling bed through the freezing micelle of gas-solid separator output, and the afterbody cooling bed is imported pulverizer through the micelle of gas-solid separator output through pipeline, and pulverizer is after the rubber powder of gas-solid separator output enters the heat exchanger backheat, gas solid separation in gas-solid separator connects finished bin or packing machine at last.
8, according to the described air circulation refrigerating plant of producing rubber powder of claim 7, it is characterized in that: air compressor (1) is through oil water separator (2), again after the interior molecular sieve adsorption drying of one of drying tower (3), enter the centrifugal compressor (4) that turbo-expander (12) drives, the hot-air of secondary booster is through first order regenerator (5), water cooler (7), second level regenerator (8), first order ice chest (9), the cooling of second level ice chest (10), arrive turbo-expander (12) through filter (11), freeze through decompressional expansion, Cryogenic air enters micelle cooling bed (13), connect cyclone separator (14) again, the Cryogenic air of cyclone separator (14) outlet is divided into two strands, after most of process filter (15) enters the cold limit heat exchange of second level ice chest (10), enter second level micelle cooling bed (16), again through second level cyclone separator (17) gas solid separation, after cold air enters the cold limit of first order ice chest (9) through filter (18), to first order micelle cooling bed (19), in first order cyclone separator (20) after the gas solid separation, enter the cold limit of forecooler (7) through filter (21), again through deduster (22), get back to the import of air compressor (1), follow freezing micelle to enter low temperature eddy pulverizer (24) from another burst Cryogenic air that cyclone separator (14) comes out through control valve (23), then by way of the cold limit of second level regenerator (8) and first order regenerator (5), the hot edge joint of this two-stage regenerator is gone into the hot-air of compressor (4) secondary booster, cyclone separator (25) is established in the pulverizer outlet, cyclone separator (25) outlet connects micelle impulse drying fluid bed (26), be connected on cyclone separator (27) again, converge and enter deduster (22) through filter (28) and most return air, take back the import of air compressor (1), compressor (1) inlet is provided with valve (50,51), whole device is the air circulation refrigeration system of enclosed, micelle storehouse and vibrating bunker (37) are through screw feeder (38), send into impulse drying fluid bed (26), after receive cyclone separator (27), send in the first order cooling bed (19) through lock wind removal device (39) and screw feeder (40) again, the fluid bed outlet connects cyclone separator (20), send into second level cooling bed (16) through lock wind removal device (41) and screw feeder (42), cyclone separator under this fluid bed (17) again, lock wind removal device (43) and screw feeder (44) are sent into cooling bed (13), cyclone separator under it (14) again, lock wind removal device (45) enters low temperature eddy pulverizer (24), the rubber powder of pulverizer outlet and the air duct of following, after connecing the cold limit of first order regenerator and second level regenerator, connect cyclone separator (25), lock wind removal device (46) is sent into rubber powder classifying screen (47), the fine powder outlet of classifying screen enters rubber powder storehouse and vibrating bunker (48), connect packing machine (55) at last, the outlet that the meal outlet of classifying screen is sent into cyclone separator (25) by lock wind removal device (49) is received in the preceding pipeline of drying tower, the regenerating unit of molecular sieve is: air blast (34) connects electric heater (35), connect drying tower and silencer (36), the logical atmosphere of silencer outlet, totally three in drying tower is connected with transfer valve with pipeline.
9, according to the described air circulation refrigerating plant of producing rubber powder of claim 8, it is characterized in that: the drying tower outlet is provided with flow sensor (56), in the turbo-expander outlet temperature sensor (57) is arranged, the temperature sensor (59) of low temperature eddy pulverizer outlet, the output termination computer of each sensor, fanout connects the control circuit of frequency modulation motor (58) and control valve (23).
10, according to the described air circulation refrigerating plant of producing rubber powder of claim 9, it is characterized in that: be provided with safety device in the native system, the outlet of centrifugal compressor (4) is provided with check-valves (52) and anti-asthma valve (60), made emergency switching-off valve (53) and by-passing valve (54) at the decompressor end, all control valves are controlled by computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95111135 CN1068672C (en) | 1995-07-26 | 1995-07-26 | Air circulationf reezing technology for making gelatin powder and equipment thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95111135 CN1068672C (en) | 1995-07-26 | 1995-07-26 | Air circulationf reezing technology for making gelatin powder and equipment thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1141418A true CN1141418A (en) | 1997-01-29 |
| CN1068672C CN1068672C (en) | 2001-07-18 |
Family
ID=5078449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95111135 Expired - Fee Related CN1068672C (en) | 1995-07-26 | 1995-07-26 | Air circulationf reezing technology for making gelatin powder and equipment thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1068672C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1058211C (en) * | 1997-10-23 | 2000-11-08 | 烟台思可达高新技术中试有限公司 | Method and apparatus for treatment of waste steel wire tyre and recovery of fine rubber powder by air refrigerating |
| CN1088645C (en) * | 1999-02-12 | 2002-08-07 | 中国科学院低温技术实验中心 | Preparation method of rubber powder by using waste and old tyre |
| CN100360292C (en) * | 2002-09-16 | 2008-01-09 | 南京飞利宁航空科技发展有限公司 | Air circulating refrigerating process and apparatus for producing powder |
| CN107443620A (en) * | 2017-08-20 | 2017-12-08 | 杨松 | A kind of junked tire fine rubber powder finished product collating unit |
| CN107975992A (en) * | 2017-11-23 | 2018-05-01 | 宁波杭州湾新区祥源动力供应有限公司 | A kind of cold supply system for workshop |
| CN111070494A (en) * | 2019-11-15 | 2020-04-28 | 浙江工业大学 | Waste rubber tire low temperature crushing apparatus |
| CN112619841A (en) * | 2020-12-24 | 2021-04-09 | 云南大学 | Freeze-drying ice particle processing device and preparation process |
-
1995
- 1995-07-26 CN CN 95111135 patent/CN1068672C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1058211C (en) * | 1997-10-23 | 2000-11-08 | 烟台思可达高新技术中试有限公司 | Method and apparatus for treatment of waste steel wire tyre and recovery of fine rubber powder by air refrigerating |
| CN1088645C (en) * | 1999-02-12 | 2002-08-07 | 中国科学院低温技术实验中心 | Preparation method of rubber powder by using waste and old tyre |
| CN100360292C (en) * | 2002-09-16 | 2008-01-09 | 南京飞利宁航空科技发展有限公司 | Air circulating refrigerating process and apparatus for producing powder |
| CN107443620A (en) * | 2017-08-20 | 2017-12-08 | 杨松 | A kind of junked tire fine rubber powder finished product collating unit |
| CN107975992A (en) * | 2017-11-23 | 2018-05-01 | 宁波杭州湾新区祥源动力供应有限公司 | A kind of cold supply system for workshop |
| CN111070494A (en) * | 2019-11-15 | 2020-04-28 | 浙江工业大学 | Waste rubber tire low temperature crushing apparatus |
| CN112619841A (en) * | 2020-12-24 | 2021-04-09 | 云南大学 | Freeze-drying ice particle processing device and preparation process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1068672C (en) | 2001-07-18 |
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