CN1057024C - Powder manufacture device and method of low-temp. airflow circulating refrigeration - Google Patents
Powder manufacture device and method of low-temp. airflow circulating refrigeration Download PDFInfo
- Publication number
- CN1057024C CN1057024C CN97102060A CN97102060A CN1057024C CN 1057024 C CN1057024 C CN 1057024C CN 97102060 A CN97102060 A CN 97102060A CN 97102060 A CN97102060 A CN 97102060A CN 1057024 C CN1057024 C CN 1057024C
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- temperature
- gas
- low
- temperature airflow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Disintegrating Or Milling (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
The present invention relates to a powder preparation device and a method for low temperature airflow circulation refrigeration, wherein the device comprises an air expansion refrigeration circulation system, a low temperature airflow crushing system and a frozen material system. In the device, the air expansion refrigeration circulation system provides cold energy for the low temperature airflow crushing system and the frozen material system, and finally, an airflow crushing machine is used for making powder. The device has high energy utilization ratio and can crush the materials which can not be crushed or are hard to crush at normal temperature, so the device is especially suitable for crushing polymers and elastomer with high visco-elasticity and has the advantages of few entire components, simple structure and low cost. The device is favorable for increasing economic benefits, the granularity of the crushed materials can be freely controlled, and the device can increase use efficiency.
Description
The present invention relates to a kind of fuel pulverizing plant and method of solid material, be meant a kind of fuel pulverizing plant and method that adopts the low-temperature airflow circularly cooling that mechanical type decompressor and airslide disintegrating mill combine especially, it is simple to have equipment, energy reclaims thoroughly, material does not have temperature rise in the crushing process, and the characteristics that can freely control of the granule size pulverized of material.
The technology that the present invention adopts gas expansion cycles refrigeration and low-temperature airflow pulverizer to combine, be applicable to that pulverizing those is difficult to pulverize or pulverize the material of mutability at normal temperatures, can be applicable to handle powder process fields such as junked tire recovery, waste plastics recovery, plant, biology.
Be illustrated in figure 1 as the schematic flow sheet of prior art, it is by supercharging air and cleaning system, refrigeration and surplus cold recovery system, and the system of making of material input, precooling, freezing and finished product powder, control system is formed, wherein:
One, supercharging air and cleaning system, connect vacuum tank 2 by air compressor 1, blowoff valve 3 is housed on vacuum tank 2, vacuum tank 2 also connects valve sets 37-1 and the 37-8 inlet channel as drying tower, valve sets 37-2 is connected in series the other end that the two ends, back are connected valve sets 37-1 and 37-8 respectively with 37-7, its common port connects muffler 39, the other end of muffler 39 leads to atmosphere, water supply gas and carbon dioxide are discharged, valve sets 37-1,37-2,37-7,37-8 links to each other with the end of drying tower 4-1 and 4-2 respectively, the other end of drying tower 4-1 and 4-2 respectively with valve sets 37-3,37-4,37-5, the end of 37-6 links to each other, the common port of valve sets 37-3 and 37-6 is connected the common port of valve sets 40-1 and 40-4, link to each other with the end of valve sets 40-2 again behind the valve sets 40-1 serial connection filter 8-1, link to each other with the end of valve sets 40-3 again behind the valve sets 40-4 serial connection filter 8-2, the common port of valve sets 40-2 and 40-3 is connected the air bearing air supply opening of turbine expansion unit 9, the common port of valve sets 37-3 and 37-6 also is connected an end of pneumatic diaphragm control valve 6, the other end of pneumatic diaphragm control valve 6 connects elementary ice chest 7, connect low temperature feed bin 14 through elementary ice chest 7, the other end of low temperature feed bin 14 connects main ice chest 10, turbine end (right-hand member) air inlet that connects turbine expansion unit 9 through main ice chest 10, the common port of valve sets 37-4 and 37-5 links to each other with an end of electric furnace 5 and the end of valve sets 38-1, the other end of electric furnace 5 connects the end of valve sets 38-2, the common port of valve sets 38-2 and 38-1 is connected compressor end (left end) exhaust outlet of turbine expansion unit 9, the air inlet of compressor end connects elementary ice chest 7, connects main ice chest 10 through elementary ice chest 7;
Two, refrigeration and surplus cold recovery system, low-temperature airflow delivery outlet by the turbine end of turbine expansion unit 9 connects loader 15, connects loaders 18, connects high efficiency cyclonic dust collectors 12 by Subzero valve 11 by Subzero valve 17 through pipeline simultaneously, the surplus cold recovery of low-temperature airflow connects high efficiency cyclonic dust collector 12 and cyclone dust collectors 20 by the cold limit of main ice chest 10, freon refrigeration unit 28 connects evaporimeter 23, one end of evaporimeter 23 connects the air outlet of blower fan 22, the other end connects loader 24, and the suction opeing of blower fan 22 connects cyclone dust collectors 26;
Three, the material input, precooling, the system of making of freezing and finished product powder, an end that connects quantitative feed device 35 and bleeder valve 36 by hopper 34, the other end of bleeder valve 36 connects loader 30, loader 30 and other loader 24,18,15 are three way type, therefore the two ends in addition of loader 30 connect blower fan 29 and cyclone dust collectors 31 respectively, one end of cyclone dust collectors 31 connects expansion chamber 33, atmosphere is led in the outlet of expansion chamber 33, the other end of cyclone dust collectors 31 connects bleeder valve 32, the other end of bleeder valve 32 connects loader 24, in the two ends in addition of loader 24, one end connects an end of evaporimeter 23, the other end of evaporimeter 23 connects the air outlet of blower fan 22, the other end of loader 24 is connected with fore-cooling room 25, fore-cooling room 25 connects cyclone dust collectors 26, one end of cyclone dust collectors 26 connects the suction opeing of blower fan 22, the other end connects bleeder valve 27, bleeder valve 27 links to each other with loader 18, in the two ends in addition of loader 18, one end connects an end of Subzero valve 17, the other end connects refrigerating chamber 19, refrigerating chamber 19 connects cyclone dust collectors 20, cyclone dust collectors 20 and the common cold limit inlet channel that is connected main ice chest 10 of an end of high efficiency cyclonic dust collector 12, one end of cyclone dust collectors 20 connects bleeder valve 21, one end of bleeder valve 21 connects loader 15, in the two ends in addition of loader 15, the cold air path of the transmission low-temperature airflow of the turbine end of one end connection turbine expansion unit 9, the other end links to each other with Lowtemperaturepulverizer 16, the other end of Subzero valve 17 and the other end of Subzero valve 11 are connected the cold air path of the turbine end of turbine expansion unit 9 jointly, Lowtemperaturepulverizer 16 connects high efficiency cyclonic dust collector 12, high efficiency cyclonic dust collector 12 connects an end of Subzero valve 11, high efficiency cyclonic dust collector 12 links to each other with bleeder valve 13, the other end of bleeder valve 13 links to each other with low temperature feed bin 14, and the other end of low temperature feed bin 14 is finished product powder outlets;
Four, control system adopts manually and automatic bidirectional control, and inlet amount and load carry out follow-up adjustment control according to variations in temperature;
Provide source of the gas by supercharging air and cleaning system for turbine expansion unit 9, make the 150K low-temperature airflow for the material deep cooling embrittlement by turbine expansion unit 9, be beneficial to pulverize, make the 243K temperature for the material precooling by freon refrigeration unit 28, the transmission course of material is that material at first enters hopper 34, enter loader 30 through bleeder valve 36 and enter cyclone dust collectors 31 again, enter loader 24 through bleeder valve 32 then, 25 enter cyclone dust collectors 26 through the fore-cooling room, enter loader 18 through bleeder valve 27, enter cyclone dust collectors 20 through refrigerating chamber 19 again, several times precooling, after the cyclone dust removal, freezing, the material of dedusting is sent into low temperature feed bin 14 through high efficiency cyclonic dust collector 12 and bleeder valve 13, powder heat exchange in the low temperature feed bin, and packing can deliver from godown more than the temperature recovery to 0 ℃; System adopts two-way control to combine automatically and manually, bleeder valve 13,21 adopts the material valve that is applicable to that cryogenic environment uses, the material valve that bleeder valve 27,32,36 adopts pre-cold environment to use, interface channel is finished by pipeline and transmitting device, and quantitative feed device 35 can be regulated inlet amount according to temperature conditions.
Aforesaid existing apparatus has following 2 disappearances: (one) its integrated member is many, equipment is numerous and diverse, thereby the cost height, does not meet economic benefit; (2) granule size that can pulverize of its material is fixed, and can't freely control according to need, thereby reduce its benefit.
The object of the present invention is to provide the method and the device thereof of the powder process of a kind of low-temperature airflow circularly cooling, its parts are few, and are simple in structure, and material granule size after crushed can be controlled as required.
For achieving the above object, the invention provides a kind of fuel pulverizing plant of low-temperature airflow circularly cooling, it comprises the gas swell refrigeration circulatory system, the low-temperature airflow crushing system, the frozen materials system, the wherein said gas swell refrigeration circulatory system comprises mechanical type expansion unit, first heat exchanger, second heat exchanger, the 3rd heat exchanger, the 6th heat exchanger and refrigerating plant, Compressed Gas behind the dry decontamination is through first heat exchanger, second heat exchanger, the 3rd heat exchanger is cooled to uniform temperature, enter again and carry out constant entropy expansion in the decompressor and make cryogenic gas and send into the direct frozen materials of refrigerating plant, gas after the realization gas solid separation enters the air-flow of the 6th heat exchanger in the low-temperature airflow crushing system provides cold, enters the 3rd heat exchanger and return compressor inlet behind second heat exchanger; Described low-temperature airflow crushing system comprises the 5th heat exchanger, the 6th heat exchanger, air flow crushing device and deduster group, granule size after described air flow crushing device can be pulverized material is controlled, with gas in the gas swell refrigeration circulatory system with the Compressed Gas of another road dry decontamination that goes out a source through the 5th heat exchanger, after the 6th heat exchanger is cooled to uniform temperature, be used for the frozen materials of refrigerating plant is poured in the air flow crushing device, the gas of described air flow crushing device outlet enters the back discharge system that rises again in the 5th heat exchanger after the dedusting of deduster group, the product backheat of pulverizing gained is divided to the room temperature grade packaged; Described frozen materials system comprises refrigerating plant, and material dosing adds refrigerating plant and is chilled to and enters air flow crushing device after temperature required and pulverize.
Preferably, described frozen materials system also includes a pre-cooler, material dosing adds pre-cooler, refrigerating plant and is cooled to and enters air flow crushing device after temperature required and pulverize, come from refrigerating plant through the gas after the gas solid separation behind the 6th heat exchanger, second heat exchanger, enter pre-cooler once more directly and the material in the pre-cooler contact its precooling, the gas that comes from after the gas solid separation of pre-cooler returns compressor inlet behind the 3rd heat exchanger, material is sent into refrigerating plant after precooling in pre-cooler.
According to a further aspect of the invention, a kind of fuel pulverizing plant of low-temperature airflow circularly cooling is provided, it comprises the gas swell refrigeration circulatory system, low-temperature airflow crushing system, material system, the wherein said gas swell refrigeration circulatory system comprises mechanical type expansion unit, first heat exchanger, Compressed Gas behind the dry decontamination is cooled to uniform temperature through first heat exchanger, enters to carry out constant entropy expansion in the decompressor and make cryogenic gas and directly send into air flow crushing device again; Described low-temperature airflow crushing system comprises air flow crushing device and deduster group, granule size after described air flow crushing device can be pulverized material is controlled, gas discharge system after the dedusting of deduster group of described air flow crushing device outlet, the product backheat of pulverizing gained divide to the room temperature grade packaged; Described material system comprises Storage appts., and material adds Storage appts., and the low-temperature airflow that the normal temperature material in the described Storage appts. is directly produced by the expansion unit pours air flow crushing device and pulverizes.
According to another aspect of the invention, a kind of milling method of low-temperature airflow circularly cooling is provided, this method comprises, the cryogenic gas that the circulation of gas swell refrigeration is obtained comes direct frozen materials and makes it reach temperature required as cold-producing medium, high pressure draught then reduces temperature through the cold that heat exchanger obtains from described kind of refrigeration cycle indirect, utilize described high pressure low temperature air-flow that the material of freezing mistake is poured air flow crushing device again and carry out low temperature powder process operation, wherein, the granule size after described air flow crushing device can be pulverized material is controlled.
The invention has the advantages that its integrated member is few, equipment is simple, thereby cost is low, meets economic benefit; And it can make material be crushed to required granule size by the material of the control valve of low-temperature airflow crushing system control right quantity by airslide disintegrating mill, improves its utilization benefit.
Below in conjunction with accompanying drawing, specific embodiments of the invention are described, wherein:
Fig. 1 is the schematic flow sheet of prior art;
Fig. 2 is a schematic flow sheet of the present invention;
Fig. 3 is a simplification schematic flow sheet of the present invention;
Fig. 4 is an another kind of schematic flow sheet of the present invention;
Fig. 5 is the another kind of schematic flow sheet of simplifying of the present invention.
Schematic flow sheet of the present invention shown in Fig. 2,4, it comprise one by water cooler 2, the 4th heat exchanger 5, the 3rd heat exchanger 4, second heat exchanger 3, the 6th heat exchanger 9, pre-cooler 6, refrigerating plant 7 and expansion unit 1 ', the 1 gas swell refrigeration circulatory system that constitutes; In this expansion unit, decompressor 1 can be a piston expansion engine, also can be turbo-expander, if adopt piston expansion engine, then do not need compressor 1 ', and directly provide 0.8 to 1.6MPa dry source of the gas by compressor station; In this system, water cooler 2 has adopted the shell and tube transducer; The 3rd heat exchanger 4, second heat exchanger 3, the 6th heat exchanger 9 can be tubular heat exchanger, plate type heat exchanger or plate-fin heat exchanger; The 4th heat exchanger 5 can adopt the spiral heat exchanger of strap clamp cover, with high temperature source of the gas or electricity, steam indirect solid material, and also can be with the direct contact heat-exchanging of low-pressure air current; Pre-cooler 6, refrigerating plant 7 are made of the fluid bed and the cleaner of airflow freezing pipe or various types, to guarantee the cooling time of material.
In flow process shown in Figure 2, comprise a low-temperature airflow crushing system of forming by the 5th heat exchanger 8, the 6th heat exchanger 9, the 4th heat exchanger 5, airslide disintegrating mill 10,10-1,10-2,10-3 and deduster group 11.In this system, airslide disintegrating mill 10,10-1,10-2,10-3 can be flat, circulation tubular type or target formula, and each is with a control valve 17-1,17-2,17-3 serial connection between each airslide disintegrating mill 10,10-1,10-2,10-3, and each airslide disintegrating mill 10,10-1,10-2 are connected with deduster group 11 with a control valve 17-4,17-5,17-6 respectively in addition.Because gases at high pressure can make gas flow temperature further reduce through the Joule-Thomson effect that nozzle produces, offset the heat of material when pulverizing, make pulverized material be in the lower-temperature atmosphere all the time; In this system, the 5th heat exchanger 8 can adopt shell and tube, plate type heat exchanger or plate-fin heat exchanger; Deduster group 11 can adopt cyclone separator to add the pattern that sack cleaner or cyclone separator add piping filter.
In flow process shown in Figure 4, comprise a low-temperature airflow crushing system of forming by the 5th heat exchanger 8, the 6th heat exchanger 9, the 4th heat exchanger 5, airslide disintegrating mill 10-4,10-5,10-6,10-7,10-8,10-9,10-10,10-11,10-12,10-13 and deduster group 11.In this system, airslide disintegrating mill 10-4,10-5,10-6,10-7,10-8,10-9,10-10,10-11,10-12,10-13 can be for flat, circulation tubular type or target formula, and airslide disintegrating mill 10-4 the place ahead connects a control valve 17-7 and is connected with deduster group 11, airslide disintegrating mill 10-5,10-6 serial connection and the place ahead connect a control valve 17-8 and are connected with deduster group 11, airslide disintegrating mill 10-7,10-8,10-9 serial connection and the place ahead connect a control valve 17-9 and are connected airslide disintegrating mill 10-10 with deduster group 11,10-11,10-12,10-13 serial connection and the place ahead connect a control valve 17-10 and are connected with deduster group 11.
In the flow process shown in Fig. 2,4, also comprise a material refrigeration system of forming by pre-cooler 6, refrigerating plant 7.In this system, can cancel pre-cooler 6, make the normal temperature material directly enter refrigerating plant 7 to carry out freezing according to the character of material, production scale with to the requirement of product, can also be with material refrigeration system cancel all, make material without freezing and directly enter the low-temperature airflow pulverizer, promptly directly adopt the processing procedure shown in Fig. 3,5.
In the flow process shown in Fig. 2,4,, can adopt gases such as air, nitrogen, carbon dioxide gas respectively as the medium of pulverizing and freezing according to by the character of comminuting matter.
In reclaiming, junked tire should be used for introducing its performance with the present invention below.
See also flow process shown in Figure 2, the pressure of dried Compressed Gas 16 is about 0.6MPa, be divided into two tunnel: one tunnel compressor 1 ' be pressurized to 0.8MPa with control valve through the turbine expansion unit, successively through the 4th heat exchanger 5, the 3rd heat exchanger 4, second heat exchanger 3 makes temperature reduce to-50 ℃, enter the expansion unit again and carry out constant entropy expansion, further be cooled to about-90 ℃, enter refrigerating plant 7 more successively, the 6th heat exchanger 9, second heat exchanger 3, pre-cooler 6, the 3rd heat exchanger 4, provide cold to material and airslide disintegrating mill 10 inlet air flows, return compressor inlet 14 then, finish gas recycle process; Another road Compressed Gas is through the 5th heat exchanger 8, the 6th heat exchanger 9, make temperature reduce to-50 ℃ to-60 ℃, and with freezing after micelle enter airslide disintegrating mill 10 or 10 and 10-1 or 10,10-1 and 10-2 or 10,10-1,10-2 and 10-3 micelle is pulverized, after passing through deduster group 11 again, emit cold and discharge 13 in the 5th heat exchanger 8, discharge gas can be got back to the gas source purification section and be recycled; Junked tire is through fragmentation, remove fiber, magnetic separation, obtain the following micelle 12 of 5mm after the screening, quantitatively add pre-cooler 6, refrigerating plant 7, and stopped about 0.8 hour, make temperature reduce to-50 ℃ to-60 ℃, opening controlling valve 17-4 and closed control valve 17-1 according to need, make 12 in micelle through airslide disintegrating mill 10 and obtain than coarseness, or opening controlling valve 17-1,17-5 and closed control valve 17-2,17-4, make micelle 12 in regular turn through airslide disintegrating mill 10 and 10-1 and obtain middle coarseness, or opening controlling valve 17-1,17-2,17-6 and closed control valve 17-3,17-4,17-5, make micelle 12 pass through airslide disintegrating mill 10 in regular turn, 10-1 and 10-2 and obtain middle fine granularity, or opening controlling valve 17-1,17-2,17-3 and closed control valve 17-4,17-5,17-6, make micelle 12 pass through airslide disintegrating mill 10 in regular turn, 10-1,10-2 and 10-3 and obtain than fine granularity, the cold glue powder after the pulverizing carry out classification packing 15 after the 4th heat exchanger 5 backheats.
In flow process shown in Figure 4, above-mentioned another road Compressed Gas also can be through the 5th heat exchanger 8, the 6th heat exchanger 9, make temperature reduce to-50 ℃ to-60 ℃, and enter airslide disintegrating mill 10-4 or 10-5 and 10-6 or 10-7,10-8 and 10-9 or 10-10,10-11,10-12 and 10-13 micelle is pulverized with micelle after freezing, after passing through deduster group 11 again, emit cold and discharge 13 in the 5th heat exchanger 8, discharge gas can be got back to the gas source purification section and be recycled; Junked tire is through fragmentation, remove fiber, magnetic separation, obtain the following micelle 12 of 5mm after the screening, quantitatively add pre-cooler 6, refrigerating plant 7, and stopped about 0.8 hour, make temperature reduce to-50 ℃ to-60 ℃, opening controlling valve 17-7 and closed control valve 17-8 according to need, 17-9,17-10, make 12 in micelle through airslide disintegrating mill 10-4 and obtain than coarseness, or opening controlling valve 17-8 and closed control valve 17-7,17-9,17-10, make micelle 12 in regular turn through airslide disintegrating mill 10-5 and 10-6 and obtain middle coarseness, or opening controlling valve 17-9 and closed control valve 17-7,17-8,17-10, make micelle 12 pass through airslide disintegrating mill 10-7 in regular turn, 10-8 and 10-9 and obtain middle fine granularity, or opening controlling valve 17-10 and closed control valve 17-7,17-8,17-9, make micelle 12 pass through airslide disintegrating mill 10-10 in regular turn, 10-11,10-12 and 10-13 and obtain than fine granularity, the cold glue grain after the pulverizing carry out classification packing 15 after the 4th heat exchanger 5 backheats.
The final products performance is: granularity is less than 0.2mm, and true specific gravity is 1.14 to 1.16, and bulk specific weight is 0.35, and ash content is less than 10%, and acetone extract is less than 10%, and it is spherical that micelle is.
Claims (24)
1. the fuel pulverizing plant of a low-temperature airflow circularly cooling, it is characterized in that, it comprises the gas swell refrigeration circulatory system, the low-temperature airflow crushing system, the frozen materials system, the wherein said gas swell refrigeration circulatory system comprises mechanical type expansion unit (1), first heat exchanger (2), second heat exchanger (3), the 3rd heat exchanger (4), the 6th heat exchanger (9) and refrigerating plant (7), Compressed Gas behind the dry decontamination (16) is through first heat exchanger (2), second heat exchanger (3), the 3rd heat exchanger (4) is cooled to uniform temperature, enter again and carry out constant entropy expansion in the decompressor (1) and make cryogenic gas and send into directly frozen materials of refrigerating plant (7), gas after the realization gas solid separation enters the air-flow of the 6th heat exchanger (9) in the low-temperature airflow crushing system provides cold, enters the 3rd heat exchanger (4) and return compressor inlet (14) behind second heat exchanger (3); Described low-temperature airflow crushing system comprises the 5th heat exchanger (8), the 6th heat exchanger (9), air flow crushing device and deduster group (11), granule size after described air flow crushing device can be pulverized material is controlled, with gas in the gas swell refrigeration circulatory system with the Compressed Gas of another road dry decontamination that goes out a source through the 5th heat exchanger (8), after the 6th heat exchanger (9) is cooled to uniform temperature, be used for the frozen materials of refrigerating plant (7) is poured in the air flow crushing device, the gas of described air flow crushing device outlet enters the back discharge system (13) that rises again in the 5th heat exchanger (8) after deduster group (11) dedusting, pulverize the product backheat of gained and divide grade packaged (15) to room temperature; Described frozen materials system comprises refrigerating plant (7), and material dosing adds refrigerating plant (7) and is chilled to and enters air flow crushing device after temperature required and pulverize.
2. the fuel pulverizing plant of low-temperature airflow circularly cooling as claimed in claim 1,
It is characterized in that, described frozen materials system also includes a pre-cooler (6), material dosing adds pre-cooler (6), refrigerating plant (7) is cooled to and enters air flow crushing device after temperature required and pulverize, the gas after gas solid separation that comes from refrigerating plant (7) is through the 6th heat exchanger (9), entering pre-cooler (6) material direct once more and in the pre-cooler behind second heat exchanger (3) contacts its precooling, the gas that comes from after the gas solid separation of pre-cooler (6) returns compressor inlet (14) behind the 3rd heat exchanger (4), material is sent into refrigerating plant (7) after precooling in pre-cooler.
3. the fuel pulverizing plant of low-temperature airflow circularly cooling as claimed in claim 1,
It is characterized in that described mechanical type expansion unit is the turbine expansion unit, described turbine expansion unit includes compressor (1 '), and the Compressed Gas behind the dry decontamination (16) enters first heat exchanger (2) after compressor (1 ') supercharging.
4. the fuel pulverizing plant of low-temperature airflow circularly cooling as claimed in claim 2,
It is characterized in that described mechanical type expansion unit is the turbine expansion unit, described turbine expansion unit includes compressor (1 '), and the Compressed Gas behind the dry decontamination (16) enters first heat exchanger (2) after compressor (1 ') supercharging.
5. as the fuel pulverizing plant of each described low-temperature airflow circularly cooling in the claim 1 to 4,
It is characterized in that, described air flow crushing device comprises airslide disintegrating mill (10), (10-1), (10-2), (10-3), control valve (17-1), (17-2), (17-3), (17-4), (17-5), (17-6), granule size according to the required pulverizing of material that was frozen, opening controlling valve (17-4) and closed control valve (17-1), micelle (12) is only obtained than coarseness through airslide disintegrating mill (10), or opening controlling valve (17-1), (17-5) and closed control valve (17-2), (17-4), make micelle (12) pass through airslide disintegrating mill (10) in regular turn and (10-1) obtain middle coarseness, or opening controlling valve (17-1), (17-2), (17-6) and closed control valve (17-3), (17-4), (17-5), make micelle (12) pass through airslide disintegrating mill (10) in regular turn, (10-1) and (10-2) obtain middle fine granularity, or opening controlling valve (17-1), (17-2), (17-3) and closed control valve (17-4), (17-5), (17-6), make micelle (12) pass through airslide disintegrating mill (10) in regular turn, (10-1), (10-2) and (10-3) obtain than fine granularity.
6. as the fuel pulverizing plant of each described low-temperature airflow circularly cooling in the claim 1 to 4,
It is characterized in that, described air flow crushing device comprises airslide disintegrating mill (10-4), (10-5), (10-6), (10-7), (10-8), (10-9), (10-10), (10-11), (10-12), (10-13), control valve (17-7), (17-8), (17-9), (17-10), granule size according to the required pulverizing of material that was frozen, opening controlling valve (17-7) and closed control valve (17-8), (17-9) reach (17-10), micelle (12) is only obtained than coarseness through airslide disintegrating mill (10-4), or opening controlling valve (17-8) and closed control valve (10-7), (10-9), (10-10), make micelle (12) pass through airslide disintegrating mill (10-5) in regular turn and (10-6) obtain middle coarseness, or opening controlling valve (17-9) and closed control valve (17-7), (17-8), (17-10), make micelle (12) pass through airslide disintegrating mill (10-7) in regular turn, (10-8) and (10-9) obtain middle fine granularity, or opening controlling valve (17-10) and closed control valve (17-7), (17-8), (17-9), make micelle (12) pass through airslide disintegrating mill (10-10) in regular turn, (10-11), (10-12) and (10-13) obtain than fine granularity.
7. as the fuel pulverizing plant of each described low-temperature airflow circularly cooling in the claim 1 to 4,
It is characterized in that the material of pulverizing gained adopts electrical heating to make its backheat to normal temperature.
8. as the fuel pulverizing plant of each described low-temperature airflow circularly cooling in the claim 1 to 4,
It is characterized in that, the air-flow that comes from first heat exchanger (2) with enter the 3rd heat exchanger (4) after the cold material of pulverizing gained contact, the cold material of pulverizing gained is by contacting backheat to normal temperature with the air-flow that comes from first heat exchanger (2).
9. as the fuel pulverizing plant of each described low-temperature airflow circularly cooling in the claim 1 to 4,
It is characterized in that, the described gas swell refrigeration circulatory system also comprises one the 4th heat exchanger (5), the air-flow that comes from first heat exchanger (2) enters the 3rd heat exchanger (4) through the 4th heat exchanger (5), the cold material that reducing mechanism is pulverized gained in the 4th heat exchanger (5) backheat to normal temperature.
10. the fuel pulverizing plant of low-temperature airflow circularly cooling as claimed in claim 9,
It is characterized in that described the 4th heat exchanger (5) is the spiral tube heat exchanger of strap clamp cover, high-temperature gas is by flowing through in chuck and hollow main shaft and the blade, cold material stirred by helical blade carry in backheat to normal temperature.
11. as the fuel pulverizing plant of each described low-temperature airflow circularly cooling in the claim 1 to 4,
It is characterized in that described second heat exchanger (3), the 3rd heat exchanger (4), the 5th heat exchanger (8), the 6th heat exchanger (9) preferably adopt plate-fin heat exchanger, also can be the heat exchangers of other form, as shell-and-tube heat exchanger, plate type heat exchanger.
12. as the fuel pulverizing plant of claim 1 or 3 described low-temperature airflow circularly coolings,
It is characterized in that described refrigerating plant (7) is made up of material cooling chamber and gas-solid separation equipment two parts.
13. as the fuel pulverizing plant of claim 2 or 4 described low-temperature airflow circularly coolings,
It is characterized in that described pre-cooler (6), refrigerating plant (7) are formed by material cooling chamber and gas-solid separation equipment two parts.
14. as the fuel pulverizing plant of each described low-temperature airflow circularly cooling in the claim 1 to 4,
It is characterized in that the working media in the described gas swell refrigeration circulatory system and the low-temperature airflow crushing system adopts gases such as air, nitrogen, carbon dioxide.
15. the fuel pulverizing plant of a low-temperature airflow circularly cooling, it is characterized in that, it comprises the gas swell refrigeration circulatory system, low-temperature airflow crushing system, material system, the wherein said gas swell refrigeration circulatory system comprises mechanical type expansion unit (1), first heat exchanger (2), Compressed Gas behind the dry decontamination (16) is cooled to uniform temperature through first heat exchanger (2), enters to carry out constant entropy expansion in the decompressor (1) and make cryogenic gas and directly send into air flow crushing device again; Described low-temperature airflow crushing system comprises air flow crushing device and deduster group (11), granule size after described air flow crushing device can be pulverized material is controlled, gas discharge system (13) after deduster group (11) dedusting of described air flow crushing device outlet pulverizes the product backheat of gained and divide grade packaged (15) to room temperature; Described material system comprises Storage appts., and material adds Storage appts., and the low-temperature airflow that the normal temperature material in the described Storage appts. is directly produced by expansion unit (1) pours air flow crushing device and pulverizes.
16. the fuel pulverizing plant of low-temperature airflow circularly cooling as claimed in claim 15,
It is characterized in that described mechanical type expansion unit is the turbine expansion unit, described turbine expansion unit includes compressor (1 '), and the Compressed Gas behind the dry decontamination (16) enters first heat exchanger (2) after compressor (1 ') supercharging.
17. as the fuel pulverizing plant of claim 15 or 16 described low-temperature airflow circularly coolings,
It is characterized in that, described air flow crushing device comprises airslide disintegrating mill (10), (10-1), (10-2), (10-3), control valve (17-1), (17-2), (17-3), (17-4), (17-5), (17-6), granule size according to the required pulverizing of material that was frozen, opening controlling valve (17-4) and closed control valve (17-1), micelle (12) is only obtained than coarseness through gas pulverizer (10), or opening controlling valve (17-1), (17-5) and closed control valve (17-2), (17-4), make micelle (12) pass through airslide disintegrating mill (10) in regular turn and (10-1) obtain middle coarseness, or opening controlling valve (17-1), (17-2), (17-6) and closed control valve (17-3), (17-4), (17-5), make micelle (12) pass through airslide disintegrating mill (10) in regular turn, (10-1) and (10-2) obtain middle fine granularity, or opening controlling valve (17-1), (17-2), (17-3) and closed control valve (17-4), (17-5), (17-6), make micelle (12) pass through airslide disintegrating mill (10) in regular turn, (10-1), (10-2) and (10-3) obtain than fine granularity.
18. as the fuel pulverizing plant of claim 15 or 16 described low-temperature airflow circularly coolings,
It is characterized in that, described air flow crushing device comprises airslide disintegrating mill (10-4), (10-5), (10-6), (10-7), (10-8), (10-9), (10-10), (10-11), (10-12), (10-13), control valve (17-7), (17-8), (17-9), (17-10), granule size according to the required pulverizing of material that was frozen, opening controlling valve (17-7) and closed control valve (17-8), (17-9) reach (17-10), micelle (12) is only obtained than coarseness through airslide disintegrating mill (10-4), or opening controlling valve (17-8) and closed control valve (10-7), (10-9), (10-10), make micelle (12) pass through airslide disintegrating mill (10-5) in regular turn and (10-6) obtain middle coarseness, or opening controlling valve (17-9) and closed control valve (17-7), (17-8), (17-10), make micelle (12) pass through airslide disintegrating mill (10-7) in regular turn, (10-8) and (10-9) obtain middle fine granularity, or opening controlling valve (17-10) and closed control valve (17-7), (17-8), (17-9), make micelle (12) pass through airslide disintegrating mill (10-10) in regular turn, (10-11), (10-12) and (10-13) obtain than fine granularity.
19. as the fuel pulverizing plant of claim 15 or 16 described low-temperature airflow circularly coolings,
It is characterized in that the material of pulverizing gained adopts electrical heating to make its backheat to normal temperature.
20. as the fuel pulverizing plant of claim 15 or 16 described low-temperature airflow circularly coolings,
It is characterized in that, the air-flow that comes from first heat exchanger (2) with enter in the decompressor (1) after the cold material of pulverizing gained contact, the cold material of pulverizing gained is by contacting backheat to normal temperature with the air-flow that comes from first heat exchanger (2).
21. as the fuel pulverizing plant of claim 15 or 16 described low-temperature airflow circularly coolings,
It is characterized in that, the described gas swell refrigeration circulatory system also comprises one the 4th heat exchanger (5), the air-flow that comes from first heat exchanger (2) enters in the decompressor (1) through the 4th heat exchanger (5), the cold material that reducing mechanism is pulverized gained in the 4th heat exchanger (5) backheat to normal temperature.
22. the fuel pulverizing plant of low-temperature airflow circularly cooling as claimed in claim 21,
It is characterized in that described heat exchanger is the spiral tube heat exchanger of strap clamp cover, high-temperature gas is by flowing through in chuck and hollow main shaft and the blade, cold material stirred by helical blade carry in backheat to normal temperature.
23. as the fuel pulverizing plant of claim 15 or 16 described low-temperature airflow circularly coolings,
It is characterized in that the working media of the described gas swell refrigeration circulatory system adopts gases such as air, nitrogen, carbon dioxide.
24. the milling method of a low-temperature airflow circularly cooling, this method comprises, the cryogenic gas that the circulation of gas swell refrigeration is obtained comes direct frozen materials and makes it reach temperature required as cold-producing medium, high pressure draught then reduces temperature through the cold that heat exchanger obtains from described kind of refrigeration cycle indirect, utilize described high pressure low temperature air-flow that the material of freezing mistake is poured air flow crushing device again and carry out low temperature powder process operation, wherein, the granule size after described air flow crushing device can be pulverized material is controlled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97102060A CN1057024C (en) | 1997-01-22 | 1997-01-22 | Powder manufacture device and method of low-temp. airflow circulating refrigeration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97102060A CN1057024C (en) | 1997-01-22 | 1997-01-22 | Powder manufacture device and method of low-temp. airflow circulating refrigeration |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1188690A CN1188690A (en) | 1998-07-29 |
| CN1057024C true CN1057024C (en) | 2000-10-04 |
Family
ID=5166129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97102060A Expired - Fee Related CN1057024C (en) | 1997-01-22 | 1997-01-22 | Powder manufacture device and method of low-temp. airflow circulating refrigeration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1057024C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100421805C (en) * | 2005-04-30 | 2008-10-01 | 南京理工大学 | High pressure fluid superfine crushing method |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950054A (en) * | 2011-08-31 | 2013-03-06 | 河南雷利矿山机械有限公司 | Low-temperature crushing vortex expansion-type medicine crushing |
| CN112495567A (en) * | 2020-12-16 | 2021-03-16 | 江苏优扬药业有限公司 | Manufacturing device of medicinal fine powder surfactant |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1069688A (en) * | 1991-08-20 | 1993-03-10 | 中国航空机载设备总公司 | Air swell refrigeration low-temperature grinding scrap rubber device |
| CN2169098Y (en) * | 1992-12-04 | 1994-06-15 | 中国科学院工程热物理研究所 | Granules-air flow freezer |
-
1997
- 1997-01-22 CN CN97102060A patent/CN1057024C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1069688A (en) * | 1991-08-20 | 1993-03-10 | 中国航空机载设备总公司 | Air swell refrigeration low-temperature grinding scrap rubber device |
| CN2169098Y (en) * | 1992-12-04 | 1994-06-15 | 中国科学院工程热物理研究所 | Granules-air flow freezer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100421805C (en) * | 2005-04-30 | 2008-10-01 | 南京理工大学 | High pressure fluid superfine crushing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1188690A (en) | 1998-07-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB2280224A (en) | Method of and apparatus for augmenting power produced from gas turbines | |
| CN1057024C (en) | Powder manufacture device and method of low-temp. airflow circulating refrigeration | |
| CN2370957Y (en) | Low-temp. air flow crusher | |
| CN104884877B (en) | Including cryogenic engine system and the equipment of refrigeration system | |
| CN101473994B (en) | Evacuating device of tobacco vacuum moisture regain box | |
| CN2668260Y (en) | Low temperature supermicro airflow disintegrating apparatus | |
| CN101303146B (en) | Air cooling process for cooling high tower granulation fertilizer | |
| CN110486627A (en) | A kind of polygenerations systeme based on LNG cold energy use | |
| CN100342179C (en) | Hydrate high density latent heat transfer central air conditioning system | |
| CN103998626A (en) | Cold wind generation from slag heat | |
| CN1068672C (en) | Air circulationf reezing technology for making gelatin powder and equipment thereof | |
| CN1229180C (en) | Apparatus for grinding chinese herb medicines into super-fine powder using chillness | |
| CN211821716U (en) | Recovery device for emptying gas of liquid carbon dioxide storage tank | |
| CN106076571A (en) | A kind of deep cooling crush micropowder preparation system | |
| CN206160625U (en) | Utilize air separation system of high -pressure natural gas pipe network pressure ability | |
| CN100360292C (en) | Air circulating refrigerating process and apparatus for producing powder | |
| CN2565610Y (en) | Air circulation refrigerating device for preparing powder material | |
| CN214276312U (en) | Triple-generation multifunctional powder cold drying machine | |
| CN101927207A (en) | Process for preparing fine rubber powder by crushing waste and old tires at low temperature | |
| CN113758223A (en) | Sorting storage bin equipment | |
| CN104258928B (en) | The production technology of high activity Gluten | |
| CN114289151A (en) | High-speed gas crushing device for carbon nano tube | |
| CN1069688A (en) | Air swell refrigeration low-temperature grinding scrap rubber device | |
| CN113776318A (en) | Green energy-saving gas direct-fired drying system | |
| CA2192761C (en) | A cooling powdering method with low temperature gas flow circulation |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |