CN112295887A - Method for separating solid products of waste plastic thermal cracking by using separation device - Google Patents
Method for separating solid products of waste plastic thermal cracking by using separation device Download PDFInfo
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- CN112295887A CN112295887A CN202011057126.4A CN202011057126A CN112295887A CN 112295887 A CN112295887 A CN 112295887A CN 202011057126 A CN202011057126 A CN 202011057126A CN 112295887 A CN112295887 A CN 112295887A
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- 238000000926 separation method Methods 0.000 title claims abstract description 46
- 239000002699 waste material Substances 0.000 title claims abstract description 33
- 239000004033 plastic Substances 0.000 title claims abstract description 32
- 229920003023 plastic Polymers 0.000 title claims abstract description 32
- 238000004227 thermal cracking Methods 0.000 title claims abstract description 23
- 238000000034 method Methods 0.000 title claims abstract description 17
- 239000012265 solid product Substances 0.000 title claims abstract description 14
- 238000005338 heat storage Methods 0.000 claims abstract description 25
- 239000007787 solid Substances 0.000 claims abstract description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910002804 graphite Inorganic materials 0.000 claims abstract description 16
- 239000010439 graphite Substances 0.000 claims abstract description 16
- 238000012856 packing Methods 0.000 claims abstract description 16
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 238000000197 pyrolysis Methods 0.000 claims abstract description 12
- 238000012216 screening Methods 0.000 claims abstract description 12
- 230000008878 coupling Effects 0.000 claims abstract description 5
- 238000010168 coupling process Methods 0.000 claims abstract description 5
- 238000005859 coupling reaction Methods 0.000 claims abstract description 5
- 239000011148 porous material Substances 0.000 claims abstract description 5
- 239000000463 material Substances 0.000 claims description 25
- 238000007599 discharging Methods 0.000 claims description 8
- 125000004122 cyclic group Chemical group 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005336 cracking Methods 0.000 description 4
- 238000004939 coking Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 239000006229 carbon black Substances 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 229920002521 macromolecule Polymers 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/18—Drum screens
- B07B1/20—Stationary drums with moving interior agitators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/42—Drive mechanisms, regulating or controlling devices, or balancing devices, specially adapted for screens
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/46—Constructional details of screens in general; Cleaning or heating of screens
Landscapes
- Processing Of Solid Wastes (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Abstract
The invention relates to a method for separating waste plastic continuous thermal cracking solid products by using a separating device, wherein the used separating device comprises a feed inlet, a separating machine barrel, a separating screw rod, a strip-shaped sieve pore, a graphite packing, a separating motor, a medium outlet, a collecting machine barrel, a collecting screw rod, a reverse spiral discharge blade, an ash outlet, a forward spiral discharge blade, a driving chain, a forward spiral screening blade, a driving chain wheel, a driven chain wheel, a coupling and a bearing seat. The method for separating the solid products of the continuous thermal cracking of the waste plastics comprises the following steps: a screw conveying separation step and an ash automatic collection step. The invention realizes the automatic separation of the pyrolysis ash and the high-enthalpy solid heat storage medium under the condition of ensuring the sealing, realizes the automatic and reliable collection of the pyrolysis ash, improves the production efficiency and ensures the sealing property of the whole device.
Description
Technical Field
The invention belongs to the technical field of high polymer material thermal cracking devices, and particularly relates to a method for separating waste plastic thermal cracking solid products by using a separation device.
Background
The waste plastic thermal cracking is that waste plastic in garbage is screened out and is heated in an oxygen-free or low-oxygen closed container, and the waste plastic is heated and cracked into low molecular compounds. The high polymer macromolecules in the waste plastics are cracked to return to a low molecular weight state or a monomer state, and fuel oil, gas, carbon black and the like are produced in the process, so that the resource, harmless and quantitative reduction treatment of the waste plastics is realized.
The continuous thermal cracking of waste plastics is to continuously feed waste plastics into a cracker at a certain feeding speed, and the waste plastics are heated and thermally cracked by the cracker, and solid products after cracking, such as carbon black, are continuously discharged from the cracker and collected. In order to promote the cracking reaction and improve the cracking uniformity, a high-enthalpy solid heat storage medium needs to be added into the cracker. The high enthalpy solid heat storage medium and the waste plastics are stirred together in the cracker until the mixture is fully and uniformly mixed, the waste plastics melt is wrapped on the surface of the high enthalpy solid heat storage medium, and the medium releases heat to accelerate the cracking process of the waste plastics and strengthen heat transfer. In the continuous thermal cracking process of waste plastics, coking often occurs in the cracker, coke blocks deposit on furnace walls or other parts, the heat transfer is seriously influenced, the system pressure is increased, and even the cracker is blocked, which brings difficulty to continuous operation. The added high enthalpy solid heat storage medium moves along with the waste plastics in the cracker, and repeatedly rubs and scratches the waste plastics with other parts such as the inner wall surface of the cracker, a screw rod and the like, and can also remove coking and prevent new coking, and finally, the high enthalpy solid heat storage medium is discharged along with cracked ash. The solid heat storage medium with high enthalpy and the ash are mixed together, and how to separate the solid heat storage medium with high enthalpy and realize the recycling of the solid heat storage medium with high enthalpy is an urgent problem to be solved in the field of waste plastic thermal cracking, so that a waste plastic continuous thermal cracking solid heat storage medium screening device with high enthalpy is researched and designed, and the solid heat storage medium screening device has practical significance.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a method for separating waste plastic thermal cracking solid products by using a separation device, which can automatically separate cracked ash from high-enthalpy solid heat storage media, realize the cyclic utilization of the high-enthalpy solid heat storage media, automatically collect the cracked ash, ensure the dynamic sealing performance of the whole device in the process and avoid gas leakage.
According to the technical scheme provided by the invention, the method for separating the solid product of waste plastic thermal cracking by using the separating device comprises a feed inlet, a separating machine barrel, a separating screw rod, a strip-shaped sieve mesh, a graphite packing, a separating motor, a medium outlet, a collecting machine barrel, a collecting screw rod, a reverse spiral discharge blade, an ash outlet, a forward spiral discharge blade, a driving chain, a forward spiral screening blade, a driving chain wheel, a driven chain wheel, a coupling and a bearing seat;
the collector barrel is positioned right below the separator barrel, a feed inlet is fixed on the upper side wall of the right end of the separator barrel, and a medium outlet is fixed on the lower side wall of the left end of the separator barrel;
the inner parts of the left end and the right end of the separator barrel are provided with a bearing seat and a graphite packing, the left end and the right end of the separation screw rod are arranged in the separator barrel through the bearing seats, and the graphite packing is adopted at the connecting part of the end parts of the separation screw rod and the separator barrel to realize dynamic rotary sealing; bearing seats and graphite packing are arranged inside the left end and the right end of the collector barrel, the left end and the right end of the collecting screw rod are arranged in the collector barrel through the bearing seats, and the graphite packing is adopted at the end part connecting part of the collecting screw rod and the collector barrel to realize dynamic rotary sealing;
the left end part of the separation screw is connected with an output shaft of a separation motor through a coupler, a driving chain wheel is fixed at the right end part of the separation screw, a driven chain wheel is fixed at the right end part of the collection screw, and a driving chain is arranged on the driving chain wheel and the driven chain wheel;
be fixed with forward spiral screening blade on the separation screw rod, seted up the bar sieve mesh on the lower lateral wall of the separation barrel that corresponds the position directly over the collector barrel, the cross section of collector barrel sets up for U type structure and its opening up, and the working section length of collector barrel corresponds with the length of bar sieve mesh, is fixed with reverse spiral on the collection screw rod and arranges material blade with forward spiral, and reverse spiral arranges material blade and is the left side that the interval set up at forward spiral row material blade, arranges the lower lateral wall of the collector barrel that the material blade was arranged to the right-hand member portion that the material blade was arranged to the reverse spiral that corresponds and position between the material blade at forward spiral and is fixed with the ash export.
The method for separating the solid products of waste plastic thermal cracking by using the separation device comprises the following steps:
screw conveying and separating: high-temperature mixed materials which are generated by continuous thermal cracking of waste plastics and consist of ash and high-enthalpy solid heat storage media enter a separator barrel from a feed inlet, a separation motor drives a separation screw rod to rotate through a coupler, a forward spiral screening blade on the separation screw rod drives the high-temperature mixed materials to move leftwards, cracked ash leaks into a collector barrel through a strip-shaped screen hole, and the high-enthalpy solid heat storage media continuously move leftwards to a medium outlet to be discharged and recycled as the diameter of the high-enthalpy solid heat storage media is larger than the width of the strip-shaped screen hole;
(II) automatically collecting ash: the schizolysis ash content distributes in collecting the barrel dispersedly, and the separation screw rod passes through drive sprocket and drive chain and drives collection screw rod and rotatory with the driven sprocket, collects reverse spiral row material blade and forward spiral row material blade that set up on the screw rod, and under collection screw rod and separation screw rod turned to the same condition, the schizolysis ash content that the ash content export both sides dispersion was arranged was carried to the ash content export respectively under reverse spiral row material blade and forward spiral row material blade's drive, and automatic collection discharges to the ash content export.
The invention realizes the automatic separation of the pyrolysis ash and the high-enthalpy solid heat storage medium under the condition of ensuring the sealing, realizes the automatic and reliable collection of the pyrolysis ash, improves the production efficiency and ensures the sealing property of the whole device.
Drawings
Fig. 1 is a schematic structural view of the present invention.
FIG. 2 is a flow chart of the separation method of the present invention.
Detailed Description
The present invention will be further described with reference to the following specific examples.
A method for separating the solid products of waste plastic thermal cracking by using a separating device comprises a feed inlet 1, a separating barrel 4, a separating screw 5, a strip-shaped sieve pore 6, a graphite packing 7, a separating motor 8, a medium outlet 9, a collecting barrel 10, a collecting screw 11, a reverse spiral discharge blade 12, an ash outlet 13, a forward spiral discharge blade 14, a driving chain 15, a forward spiral screening blade 16, a driving chain wheel 17, a driven chain wheel 18, a coupling 19 and a bearing seat 20;
the collector barrel 10 is positioned right below the separator barrel 4, a feed inlet 1 is fixed on the upper side wall of the right end of the separator barrel 4, and a medium outlet 9 is fixed on the lower side wall of the left end of the separator barrel 4;
a bearing seat 20 and a graphite packing 7 are arranged inside the left end and the right end of the separator barrel 4, the left end and the right end of the separation screw rod 5 are arranged in the separator barrel 4 through the bearing seats 20, and the graphite packing 7 is adopted at the joint of the ends of the separation screw rod 5 and the separator barrel 4 to realize dynamic rotary sealing; the bearing seats 20 and the graphite packing 7 are arranged inside the left end and the right end of the collector barrel 10, the left end and the right end of the collecting screw rod 11 are arranged in the collector barrel 10 through the bearing seats 20, and the graphite packing 7 is adopted at the end part connection part of the collecting screw rod 11 and the collector barrel 10 to realize dynamic rotary sealing;
the left end part of the separation screw rod 5 is connected with an output shaft of the separation motor 8 through a coupling 19, a driving chain wheel 17 is fixed at the right end part of the separation screw rod 5, a driven chain wheel 18 is fixed at the right end part of the collection screw rod 11, and a driving chain 15 is arranged on the driving chain wheel 17 and the driven chain wheel 18;
be fixed with forward spiral screening blade 16 on separation screw 5, seted up bar sieve mesh 6 on the lower lateral wall of the separation barrel 4 that corresponds the position directly over collector barrel 10, the cross section of collector barrel 10 is U type structure and its opening sets up upwards, and the working length of collector barrel 10 corresponds with the length of bar sieve mesh 6, is fixed with reverse spiral on collecting screw 11 and arranges material blade 12 and forward spiral, and reverse spiral arranges material blade 12 and is the interval and sets up in the left side of forward spiral row material blade 14, and the lower lateral wall of collector barrel 10 who corresponds the position between reverse spiral row material blade 12's the right-hand member portion and the forward spiral row material blade 14 is fixed with ash outlet 13.
The method for separating the solid products of waste plastic thermal cracking by using the separation device comprises the following steps:
screw conveying and separating: high-temperature mixed materials which are generated by continuous thermal cracking of waste plastics and consist of cracked ash 3 and high-enthalpy solid heat storage media 2 enter a separating machine barrel 4 from a feeding hole 1, a separating motor 8 drives a separating screw 5 to rotate through a coupler 19, forward spiral screening blades 16 on the separating screw 5 drive the high-temperature mixed materials to move leftwards, the cracked ash 3 leaks into a collecting machine barrel 10 through strip-shaped screen holes 6, and the high-enthalpy solid heat storage media 2 continuously move leftwards to a medium outlet 9 to be discharged for recycling because the diameter of the high-enthalpy solid heat storage media 2 is larger than the width of the strip-shaped screen holes 6;
(II) automatically collecting ash: pyrolysis ash content 3 is distributed in collecting barrel 10, separation screw 5 drives through drive sprocket 17 and drive chain 15 and collects screw 11 and driven sprocket 18 rotatory, collect reverse spiral row material blade 12 and forward spiral row material blade 14 that set up on the screw 11, under the same circumstances of collection screw 11 and separation screw 5 turn to, pyrolysis ash content 3 that ash export 13 both sides dispersion was arranged carries to ash export 13 respectively under reverse spiral row material blade 12 and forward spiral row material blade 14's drive, automatic collection discharges to ash export 13.
The method for separating the solid products of waste plastic thermal cracking is suitable for thermal cracking of waste rubber or oil sludge.
Compared with the prior art, the invention realizes the automatic separation of the pyrolysis ash content 3 and the high enthalpy solid heat storage medium 2 under the condition of ensuring the sealing, the high enthalpy solid heat storage medium after the pyrolysis ash content 3 is screened can continuously enter the cracker to realize the automatic recycling, the pyrolysis ash content 3 automatically moves to the ash content outlet 13 under the driving of the collecting screw rods 11 respectively provided with the reverse spiral discharging blades 12 and the forward spiral discharging blades 14 at the left side and the right side, the automatic and reliable collection of the pyrolysis ash content 3 is realized, the production efficiency is improved, and the sealing performance of the whole system is ensured.
Claims (1)
1. A method for separating the solid products of waste plastic thermal cracking by using a separating device is characterized in that: the used separation device comprises a feed inlet (1), a separation machine barrel (4), a separation screw (5), a strip-shaped sieve pore (6), a graphite packing (7), a separation motor (8), a medium outlet (9), a collection machine barrel (10), a collection screw (11), a reverse spiral discharge blade (12), an ash outlet (13), a forward spiral discharge blade (14), a driving chain (15), a forward spiral screening blade (16), a driving chain wheel (17), a driven chain wheel (18), a coupler (19) and a bearing seat (20);
the collector cylinder (10) is positioned right below the separator cylinder (4), the upper side wall of the right end of the separator cylinder (4) is fixed with the feed inlet (1), and the lower side wall of the left end of the separator cylinder (4) is fixed with the medium outlet (9);
bearing seats (20) and graphite packing (7) are arranged inside the left end and the right end of the separator barrel (4), the left end and the right end of the separation screw rod (5) are arranged in the separator barrel (4) through the bearing seats (20), and the graphite packing (7) is adopted at the end part connection part of the separation screw rod (5) and the separator barrel (4) to realize dynamic rotary sealing; bearing seats (20) and graphite packing (7) are arranged inside the left end and the right end of the collector barrel (10), the left end and the right end of the collecting screw rod (11) are arranged in the collector barrel (10) through the bearing seats (20), and the graphite packing (7) is adopted at the end part connection part of the collecting screw rod (11) and the collector barrel (10) to realize dynamic rotary sealing;
the left end part of the separation screw rod (5) is connected with an output shaft of a separation motor (8) through a coupling (19), a driving chain wheel (17) is fixed at the right end part of the separation screw rod (5), a driven chain wheel (18) is fixed at the right end part of the collection screw rod (11), and a driving chain (15) is arranged on the driving chain wheel (17) and the driven chain wheel (18);
a forward spiral screening blade (16) is fixed on the separation screw (5), a strip-shaped sieve pore (6) is formed in the lower side wall of the separation machine barrel (4) which corresponds to the position right above the collection machine barrel (10), the cross section of the collection machine barrel (10) is of a U-shaped structure, the opening of the collection machine barrel is arranged upwards, the length of the working section of the collection machine barrel (10) corresponds to the length of the strip-shaped sieve pore (6), a reverse spiral discharging blade (12) and a forward spiral discharging blade (14) are fixed on the collection screw (11), the reverse spiral discharging blade (12) is arranged on the left side of the forward spiral discharging blade (14) at intervals, and an ash outlet (13) is fixed on the lower side wall of the collection machine barrel (10) which corresponds to the position between the right end part of the reverse spiral discharging blade (12) and the forward spiral discharging blade (14);
the method for separating the solid products of waste plastic thermal cracking by using the separation device comprises the following steps:
screw conveying and separating: high-temperature mixed materials which are generated by continuous thermal cracking of waste plastics and consist of cracked ash (3) and high-enthalpy solid heat storage media (2) enter a separating machine barrel (4) from a feed inlet (1), a separating motor (8) drives a separating screw (5) to rotate through a coupler (19), a forward spiral screening blade (16) on the separating screw (5) drives the high-temperature mixed materials to move leftwards, the cracked ash (3) leaks into a collecting machine barrel (10) through a strip-shaped screen hole (6), and the high-enthalpy solid heat storage media (2) continuously move leftwards to a media outlet (9) to be discharged for cyclic utilization as the diameter of the high-enthalpy solid heat storage media (2) is larger than the width of the strip-shaped screen hole (6);
(II) automatically collecting ash: pyrolysis ash content (3) are distributed in a scattered manner in a collector barrel (10), a separation screw (5) drives a collection screw (11) and a driven chain wheel (18) to rotate through a driving chain wheel (17) and a driving chain (15), a reverse spiral discharge blade (12) and a forward spiral discharge blade (14) which are arranged on the collection screw (11), under the condition that the collection screw (11) and the separation screw (5) are the same in turning direction, the pyrolysis ash content (3) which is dispersedly distributed on two sides of an ash content outlet (13) is respectively conveyed to the ash content outlet (13) under the driving of the reverse spiral discharge blade (12) and the forward spiral discharge blade (14), and the ash content is automatically collected to the ash content outlet (13) to be discharged.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011057126.4A CN112295887A (en) | 2020-09-29 | 2020-09-29 | Method for separating solid products of waste plastic thermal cracking by using separation device |
| PCT/CN2020/120686 WO2022067884A1 (en) | 2020-09-29 | 2020-10-13 | Method for separating solid product of pyrolysis of waste plastic by using separation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011057126.4A CN112295887A (en) | 2020-09-29 | 2020-09-29 | Method for separating solid products of waste plastic thermal cracking by using separation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112295887A true CN112295887A (en) | 2021-02-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011057126.4A Pending CN112295887A (en) | 2020-09-29 | 2020-09-29 | Method for separating solid products of waste plastic thermal cracking by using separation device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN112295887A (en) |
| WO (1) | WO2022067884A1 (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996038237A1 (en) * | 1995-06-02 | 1996-12-05 | Spiral Tech I Borlänge Ab | A device for separating material |
| JP2008080680A (en) * | 2006-09-28 | 2008-04-10 | Kurimoto Ltd | Cleaning apparatus of waste plastics |
| CN107952652A (en) * | 2017-11-30 | 2018-04-24 | 成都科创诺商贸有限公司 | A kind of against shock sawdust screening installation |
| CN207385894U (en) * | 2017-08-01 | 2018-05-22 | 中创奕龙科技股份有限公司 | A kind of spiral screening machine for being used for separating off carbon black and steel wire |
| CN210058881U (en) * | 2019-05-31 | 2020-02-14 | 崇阳县明炬橡胶股份有限公司 | Separation device for cracking carbon black and steel wire |
| CN210082192U (en) * | 2019-05-30 | 2020-02-18 | 河南东盈机械设备有限公司 | Double helix carbon black screening plant |
| CN210906551U (en) * | 2019-09-25 | 2020-07-03 | 郑州德兆实业有限公司 | Multistage screening plant is used in carbon black production |
-
2020
- 2020-09-29 CN CN202011057126.4A patent/CN112295887A/en active Pending
- 2020-10-13 WO PCT/CN2020/120686 patent/WO2022067884A1/en active Application Filing
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996038237A1 (en) * | 1995-06-02 | 1996-12-05 | Spiral Tech I Borlänge Ab | A device for separating material |
| JP2008080680A (en) * | 2006-09-28 | 2008-04-10 | Kurimoto Ltd | Cleaning apparatus of waste plastics |
| CN207385894U (en) * | 2017-08-01 | 2018-05-22 | 中创奕龙科技股份有限公司 | A kind of spiral screening machine for being used for separating off carbon black and steel wire |
| CN107952652A (en) * | 2017-11-30 | 2018-04-24 | 成都科创诺商贸有限公司 | A kind of against shock sawdust screening installation |
| CN210082192U (en) * | 2019-05-30 | 2020-02-18 | 河南东盈机械设备有限公司 | Double helix carbon black screening plant |
| CN210058881U (en) * | 2019-05-31 | 2020-02-14 | 崇阳县明炬橡胶股份有限公司 | Separation device for cracking carbon black and steel wire |
| CN210906551U (en) * | 2019-09-25 | 2020-07-03 | 郑州德兆实业有限公司 | Multistage screening plant is used in carbon black production |
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| Publication number | Publication date |
|---|---|
| WO2022067884A1 (en) | 2022-04-07 |
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