CN112453032B - Core material waste recycling device and production process thereof - Google Patents
Core material waste recycling device and production process thereof Download PDFInfo
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- CN112453032B CN112453032B CN202011363952.1A CN202011363952A CN112453032B CN 112453032 B CN112453032 B CN 112453032B CN 202011363952 A CN202011363952 A CN 202011363952A CN 112453032 B CN112453032 B CN 112453032B
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- 239000002699 waste material Substances 0.000 title claims abstract description 55
- 239000011162 core material Substances 0.000 title claims abstract description 38
- 238000004064 recycling Methods 0.000 title claims abstract description 24
- 238000004519 manufacturing process Methods 0.000 title abstract description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 39
- 238000000227 grinding Methods 0.000 claims abstract description 37
- 239000000843 powder Substances 0.000 claims abstract description 18
- 239000012535 impurity Substances 0.000 claims abstract description 16
- 239000002245 particle Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 12
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 239000000428 dust Substances 0.000 claims description 29
- 238000007873 sieving Methods 0.000 claims description 27
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 16
- 229910052782 aluminium Inorganic materials 0.000 claims description 16
- 239000002002 slurry Substances 0.000 claims description 15
- 239000002131 composite material Substances 0.000 claims description 14
- 239000010410 layer Substances 0.000 claims description 14
- 238000007599 discharging Methods 0.000 claims description 13
- 239000004575 stone Substances 0.000 claims description 9
- 238000012216 screening Methods 0.000 claims description 8
- 238000003825 pressing Methods 0.000 claims description 7
- 239000002356 single layer Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000011148 porous material Substances 0.000 claims description 6
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 4
- 238000000498 ball milling Methods 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 8
- 239000004744 fabric Substances 0.000 abstract description 4
- 239000000835 fiber Substances 0.000 abstract description 4
- 239000002120 nanofilm Substances 0.000 abstract description 2
- 229920006254 polymer film Polymers 0.000 abstract description 2
- 238000002791 soaking Methods 0.000 abstract description 2
- 239000002351 wastewater Substances 0.000 description 6
- 238000010521 absorption reaction Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 239000002861 polymer material Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/20—Agglomeration, binding or encapsulation of solid waste
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B2101/00—Type of solid waste
- B09B2101/02—Gases or liquids enclosed in discarded articles, e.g. aerosol cans or cooling systems of refrigerators
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Crushing And Grinding (AREA)
- Disintegrating Or Milling (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention belongs to the field of waste recycling, and discloses a core material waste recycling device and a production process thereof, S1, coarse crushing: crushing the waste plates into sheet-shaped crushed aggregates with the diameter of 30-50mm by using a double-shaft shredder, wherein two motors are used in the process, and the power of a single motor is 37kw; s2, fine grinding: the 30-50mm waste material obtained in S1 is further crushed into small particles of 0-5mm by using a vertical hammer crusher. Through full soaking and grinding in water, the residual cloth fiber and molecular film in the core plate can be separated from the material better, and the residual impurity amount after filtering is low and less than 0.1%. The powder is adopted for grinding and filtering, and the impurity residue is more than 1 percent. The residues are mainly cloth fibers and polymer film materials, and the larger the residual quantity is, the larger the quality influence on the finished product after recycling is, so that the fire-proof grade is not up to standard, and unqualified products are easy to generate. Thus also limiting the amount of dry powder added. The smaller the residual amount, the smaller the influence on the quality of the finished product, and the addition amount can be greatly improved.
Description
Technical Field
The invention relates to the field of comprehensive recycling of waste, in particular to a core material waste recycling device and a production process thereof.
Background
The existing waste recycling method of the A2-level fireproof core plate generally adopts a blade crusher to directly crush the core plate into 80-150 meshes of powder for use; drawbacks of this approach include the following:
Firstly, the processing efficiency is low, as the core plate contains a certain proportion of high polymer materials, the core plate has certain toughness, and the heat generated in the high-speed rotation process of the blade is easy to cause material adhesion, the grinding to obtain lower fine powder yield, and the single daily yield is only 2-3 tons;
secondly, the dust is larger in the processing process;
Thirdly, when the core plate waste is recycled and added in a dry powder form, the dry powder has strong water absorption and mixed different components, so that the recycling and adding use proportion is limited, the water adding amount is high and low due to overlarge proportion, the process parameters are difficult to adjust, and the production stability and the quality of the finished core plate are seriously affected;
Fourth, according to the use experience, the addition proportion of the dry powder recycled material generally cannot exceed 5%, otherwise, the production stability is very easy to be reduced, the quality of the core plate is reduced, but the recycling proportion of 5% is too low, the full recycling of the waste materials is limited, a large amount of backlog of the waste materials is caused, and more waste is generated.
Disclosure of Invention
The invention aims to provide a core material waste recycling device and a production process thereof, which can effectively solve the problems in the background technology.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: the utility model provides a high-efficient circulating device of core material waste material, includes coarse smashing device, coarse smashing device's discharge gate links up with first conveyer belt one end, the first conveyer belt other end sets up in the feed inlet top of dust removal case, dust removal case bottom and vertical compound breaker's feed inlet intercommunication, dust removal case one side is through pipeline A and the dust absorption storehouse intercommunication that has the dust catcher, the waste material after vertical compound breaker handles is sieved the device through first sieving and is carried into the ball mill through the second conveyer belt after sieving, uses the grinding stone in the ball mill as ball milling medium, enters into the second sieving device after the ball mill blowing from the ball mill, warp the waste material after the second sieving device filters is placed in the pressure filter and is made the cake, the pressure filter is equipped with the liquid receiving groove, the liquid receiving groove produces waste water and passes through the return water pipe intercommunication to the ball mill in, be equipped with the booster pump on the return water pipe.
Preferably, the coarse crushing device is a double-shaft shredder, the double-shaft shredder comprises an open feed box, two shredding rollers which are arranged in the open feed box in parallel, and the two shredding rollers are driven to rotate by two motors respectively.
Further, the vertical composite crusher comprises a cylinder body, a feeding hole is formed in the upper portion of the cylinder body, an impeller is arranged in the cylinder body, and the impeller is driven by a motor to rotate.
Further, the first sieving device comprises a first sieving box, a single-layer filter screen is arranged in the first sieving box, and the first sieving box is driven to vibrate by a motor.
Preferably, the ball mill comprises a rotary drum, two ends of the rotary drum are respectively provided with a rotary shaft, the rotary shafts are rotatably arranged on the frame, and the rotary shafts are driven by a motor.
Further, the second sieving device comprises a second sieving box, a double-layer filter screen is arranged in the second sieving box, and the second sieving box is driven by a motor.
Preferably, the filter press is a plate and frame filter press.
Further, the grinding stone is a high-wear-resistance aluminum ball.
A core material waste recycling production process is characterized in that: comprises the following steps
S1, coarse grinding: crushing the waste plates into sheet-shaped crushed aggregates with the diameter of 30-50mm by using a double-shaft shredder, wherein two motors are used in the process, and the power of a single motor is 37kw;
S2, fine grinding: the waste material of 30-50mm obtained in the step S1 is further crushed into small particles of 0-5mm by using a vertical hammer crusher, the power of the vertical crusher is 30kw, and the rotating speed is 1475r/min.
S3, filtering impurities by using a vibrating screen: the vibrating screen consists of two vibrating motors, the single power is 1.5kw, the vibration frequency is 1000 times/min, the vibrating screen consists of a single-layer filter screen, and the aperture of the filter screen is 6mm;
S4, conveying the small particles with the diameter of 0-5mm obtained in the step S3 into a ball mill through a conveying belt, grinding the waste into slurry by taking grinding stones and water as media, and adding the components in proportion: 2 tons (0-5 mm) of core plate waste, 3-4 tons of high-wear-resistant aluminum balls and 2 tons of water, grinding the core material with the diameter of 0-5mm into fine powder with the diameter of 100-200 meshes, wherein the grinding time is 1-2h;
S5, discharging: introducing compressed air into the ball mill for discharging, wherein the pressure of the compressed air is 0.4-0.8MPa, and the discharging time is 10-15min;
S6, the vibrating screen is used for further filtering out impurities and large particles: the filter screen consists of two layers of filter screens, wherein the pore diameter of the upper layer of filter screen is 3 x 3mm, the pore diameter of the lower layer of filter screen is 1 x 1mm, and the impurity content of filtered slurry is less than 0.1%;
s7, filter pressing: removing water from the slurry screened in the step S6 by a filter press, wherein the pressure is 0.8-1.2MPa, and pressing the slurry into cake with the water content of 15% -30%;
S8, pumping the water extruded by the S7 filter press into the ball mill in the S4 through a booster pump, so as to realize water circulation.
Further, the content of alumina in the high wear-resistant aluminum balls is 92%, and the mixing proportion of the high wear-resistant aluminum balls is as follows: 70% of diameter of 30-50mm and 30% of diameter of 50-70 mm.
Compared with the prior art, the invention has the following beneficial effects:
1. The slurry powder obtained by water milling has fine particles, uniform granularity and 100-200 meshes, is suitable for adding and use and has good stability;
2. Through full soaking and grinding in water, the residual cloth fiber and molecular film in the core plate can be separated from the material better, and the residual impurity amount after filtering is low and less than 0.1%. The powder is adopted for grinding and filtering, and the impurity residue is more than 1 percent. The residues are mainly cloth fibers and polymer film materials, the larger the residual quantity is, the larger the quality influence on the finished product after recycling is, the fire-proof grade is not up to standard, and unqualified products are easy to generate; therefore, the addition amount of the dry powder is limited, and the smaller the residual amount is, the smaller the influence on the quality of the finished product is, and the addition amount can be greatly improved;
3. the materials are ground by taking water as a medium, water is fully absorbed in the grinding process, the problems of unstable production caused by large water absorption and different ingredients in dry powder addition and difficult control of technological parameters are solved, the recovery and addition amount can be increased to 30%, meanwhile, the production stability is not influenced, and the production rate can be stabilized to be more than 95%. If dry powder is added, 30% of the dry powder is added, the preparation rate is only 80% -85%, so that the dry powder adding mode can only reduce the adding proportion;
4. the grinding efficiency is improved to the maximum extent by a continuous progressive mode of coarse grinding, fine grinding and water grinding, and the single-day yield of a single set of equipment can reach 6-8 tons;
5. The waste water generated by filter pressing can be repeatedly fed into a water mill for use, and no waste water is discharged;
6. the core material finished product with 30% of the return material is added, the fire grade reaches the A2 grade standard of GB8624-2012, the quality reaches the standard, the production cost is greatly reduced, the waste is reduced, and the effect of maximizing the cyclic utilization of the A2 grade fire-proof core material waste is achieved.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a high-efficiency recycling device for core material waste.
Detailed Description
The invention is further described in connection with the following detailed description, in order to make the technical means, the creation characteristics, the achievement of the purpose and the effect of the invention easy to understand.
Example 1
The utility model provides a high-efficient circulating device of core material waste material, including coarse crushing device 1, coarse crushing device 1 is the biax shredder, biax shredder includes uncovered workbin 101, parallel arrangement is in uncovered workbin 101 two shredding rolls 102, two shredding rolls 102 are rotated by motor drive respectively, the discharge gate of coarse crushing device 1 links up with first conveyer belt 2 one end, the other end setting of first conveyer belt 2 is in the feed inlet top of dust removal case 14, dust removal case 14 bottom communicates with the feed inlet of vertical composite crusher 3 (Henan red star mine machine limited company), dust removal case 14 one side is through pipeline A11 and dust absorption storehouse 10 intercommunication with the dust catcher, vertical composite crusher 3 includes barrel 31, the pan mill feed inlet of setting up in barrel 31 top is equipped with impeller 32 in the barrel 31, impeller 32 is rotated by motor drive, the waste material after vertical composite crusher 3 handles is through first sieving device 4 sieves the back and is carried into ball mill 6 through second conveyer belt 5, first sieve case 41, first sieve device 4 includes first sieve case 41, first sieve case motor 42 is equipped with single-layer filter screen 42, filter screen 7 is equipped with filter press 7 is equipped with the filter media is arranged for the ball mill filter press 7 through the second rotary shaft 71 to the rotation axis of rotation of drum 7, ball mill 7 is arranged for the ball mill filter press 7 is arranged in the rotation axis of rotation of the second filter press 7, ball mill 7 is arranged for the rotary drum mill 7, the filter press 7 is arranged for the rotary drum mill 7 is rotated through the rotary drum filter press 7, the rotary drum 7 is arranged for the rotary drum filter mill 7 is rotated through the rotary drum 8, the wastewater generated by the liquid receiving tank 9 is communicated into the ball mill 6 through a water return pipeline 12, and a booster pump 13 is arranged on the water return pipeline 12.
Example 2
A core material waste recycling production process comprises the following steps of
S1, coarse grinding: crushing the waste plates into sheet-shaped crushed aggregates with the diameter of 30-50mm by using a double-shaft shredder, wherein two motors are used in the process, and the power of a single motor is 37kw;
s2, fine grinding: using a vertical hammer crusher to further crush the 30-50mm waste obtained in the step S1 into small particles with the size of 0-5mm, wherein the power of the vertical crusher motor is 30kw, and the rotating speed is 1475r/min;
s3, filtering impurities by using a vibrating screen: the vibrating screen consists of two vibrating motors, the single power is 1.5kw, the vibration frequency is 1000 times/min, the vibrating screen consists of a single-layer filter screen, and the aperture of the filter screen is 6mm;
S4, conveying the small particles with the diameter of 0-5mm obtained in the step S3 into a ball mill through a conveying belt, grinding the waste into slurry by taking grinding stones and water as media, and adding the components in proportion: 2 tons of core plate waste material, 0-5mm, 3-4 tons of high-wear-resistant aluminum balls and 2 tons of water, grinding the core material with the size of 0-5mm into fine powder with the size of 100-200 meshes, wherein the grinding time is 1-2 hours;
S5, discharging: introducing compressed air into the ball mill for discharging, wherein the pressure of the compressed air is 0.4-0.8MPa, and the discharging time is 10-15min;
S6, the vibrating screen is used for further filtering out impurities and large particles: the filter screen consists of two layers of filter screens, wherein the pore diameter of the upper layer of filter screen is 3 x 3mm, the pore diameter of the lower layer of filter screen is 1 x 1mm, and the impurity content of filtered slurry is less than 0.1%;
s7, filter pressing: removing water from the slurry screened in the step S6 by a filter press, wherein the pressure is 0.8-1.2MPa, and pressing the slurry into cake with the water content of 15% -30%;
S8, pumping the water extruded by the S7 filter press into the ball mill in the S4 through a booster pump, so as to realize water circulation.
The content of alumina in the high wear-resistant aluminum ball is 92%, and the mixing proportion of the high wear-resistant aluminum ball is as follows: 70% of diameter of 30-50mm and 30% of diameter of 50-70 mm.
The working process of the device and the process of the invention is described by combining the device and the process: the utility model provides a high-efficient circulating device of core roll waste material, includes coarse crushing device 1, and coarse crushing device 1 is biax shredder, biax shredder including open workbin 101, two shredding rolls 102 of parallel arrangement in open workbin 101, two shredding rolls 102 are respectively by two motors (motor power is 37 kw) drive rotation, tear the waste board into 30-50 mm's slice crushed aggregates; the discharging hole of the coarse crushing device 1 is connected with one end of a first conveying belt 2, the other end of the first conveying belt 2 is arranged above the feeding hole of a dust removing box 14, the section of the feeding hole of the dust removing box 14 is in an inverted trapezoid shape, the bottom of the dust removing box 14 is communicated with the feeding hole of a vertical composite crusher 3, one side of the dust removing box 14 is communicated with a dust collecting bin 10 with a dust collector through a pipeline A11, and coarse waste materials can generate a lot of dust when being placed into the vertical composite crusher 3, the dust is relatively harmful to human bodies, so that the dust removing box 14 is welded above the feeding hole of the vertical composite crusher 3, the impurity dust is sucked into the dust collecting bin 10 through the dust collector, the effect of preliminary impurity dust removal is realized, the vertical composite crusher 3 comprises a cylinder 31, the feeding hole is arranged above the cylinder 31, an impeller 32 is arranged in the cylinder 31, the impeller 32 is driven to rotate by a motor, the power of the motor 1475r/min, and the waste materials with the speed of 30-50mm are further crushed into small particles with the size of 0-5 mm; the waste materials treated by the vertical composite crusher 3 are conveyed into the ball mill 6 through the second conveying belt 5 after being screened by the first screening device 4, the first screening device 4 comprises a first screening box 41, a single-layer filter screen 42 is arranged in the first screening box 41, the diameter of the filter screen is 6mm, the first screening box 41 is driven to vibrate by two motors, the single power is 1.5kw, the vibration frequency is 1000 times/minute, in order to screen the waste materials with larger particles still, the waste materials are continuously recycled into the vertical composite crusher 6 to be crushed to have the particle size in the range of 0-5mm, then small particles with the particle size of 0-5mm are conveyed into the ball mill 6 through the conveying belt, the ball mill 6 comprises a rotary drum 61, two ends of the rotary drum 61 are respectively provided with a rotary shaft 62, the rotary shaft 62 is rotatably arranged on a frame 63, the rotary shaft 62 is driven by the motors, grinding stones 61 are used as ball milling media in the ball mill 6, the grinding stones 61 are used as high wear-resistant aluminum balls, the high wear-resistant aluminum balls and water are used as media, the waste materials are ground into slurry, and the specific adding proportion is as follows: 2 tons (0-5 mm) of core plate waste, 3-4 tons of high wear-resistant aluminum balls (the content of aluminum oxide is 92%) and 2 tons of water, aiming at the physical characteristics of core material waste, the high wear-resistant aluminum balls with different diameters are adopted for mixing, so that the optimal grinding efficiency is achieved, and the mixing proportion of the high wear-resistant aluminum balls is as follows: 70% of diameter of 30-50mm and 30% of diameter of 50-70 mm. By adopting the high-alumina ball with the mixing proportion, the core material with the thickness of 0-5mm can be ground into fine powder with the size of 100-200 meshes, the grinding time is 1-2h, and the high-efficiency is realized; introducing compressed air into a ball mill 6 for discharging, wherein the pressure of the compressed air is 0.4-0.8MPa, the discharging time is 10-15 minutes, discharging waste materials and then entering a second sieving device 7, the second sieving device 7 comprises a second sieving box 71, a double-layer filter screen 72 is arranged in the second sieving box 71, the second sieving box 71 is driven by a motor, the aperture of an upper layer filter screen is 3 x 3mm, the aperture of a lower layer filter screen is 1 x 1mm, the impurity content of filtered slurry is less than 0.1%, the waste materials filtered by the second sieving device 7 are placed in a filter press 8 (Jing Jin environmental protection Co., ltd.) to remove water and then are pressed into cakes, the filter press 8 is a plate-frame filter press, the pressure is 0.8-1.2MPa and the cake is pressed, and the water content is 15% -30%; finally, the waste pressed into cakes enters a recycling link, the plate-and-frame filter press is provided with a liquid receiving groove 9, the liquid receiving groove 9 generates waste water, and the waste water is pumped into the ball mill from a water return pipeline 12 by a booster pump 13 for recycling.
The foregoing has shown and described the basic principles and main features of the present invention and the advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present invention, and various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a high-efficient circulating device of core material waste material which characterized in that: the device comprises a coarse crushing device (1), a discharge hole of the coarse crushing device (1) is connected with one end of a first conveying belt (2), the other end of the first conveying belt (2) is arranged above a feed hole of a dust removing box (14), the bottom of the dust removing box (14) is communicated with the feed hole of a vertical composite crusher (3), one side of the dust removing box (14) is communicated with a dust collection bin (10) with a dust collector through a pipeline A (11), waste materials treated by the vertical composite crusher (3) are conveyed into a ball mill (6) through a second conveying belt (5) after being screened by the first screening device (4), grinding stones (61) are used as ball milling media in the ball mill (6), waste materials after being ground by the ball mill (6) enter a second screening device (7), the waste materials after being filtered by the second screening device (7) are placed in a filter press (8) to be made into cakes, the filter press (8) is provided with a liquid receiving groove (9), waste materials treated by the vertical composite crusher (3) are conveyed into the ball mill (12) through a water return pipeline (12), and the waste materials are communicated with a booster pump (13) through the water return pipeline (12);
the coarse crushing device (1) is a double-shaft shredder, the double-shaft shredder comprises an open workbin (101), two shredding rollers (102) are arranged in the open workbin (101) in parallel, and the two shredding rollers (102) are driven to rotate by two motors respectively;
the vertical composite crusher (3) comprises a cylinder body (31), a feed inlet is arranged above the cylinder body (31), an impeller (32) is arranged in the cylinder body (31), and the impeller (32) is driven to rotate by a motor;
Comprises the following steps
S1, coarse grinding: crushing the waste plates into sheet-shaped crushed aggregates with the diameter of 30-50mm by using a double-shaft shredder, wherein two motors are used in the process, and the power of a single motor is 37kw;
s2, fine grinding: using a vertical hammer crusher to further crush the 30-50mm waste obtained in the step S1 into small particles with the size of 0-5mm, wherein the power of the vertical crusher motor is 30kw, and the rotating speed is 1475r/min;
s3, filtering impurities by using a vibrating screen: the vibrating screen consists of two vibrating motors, the single power is 1.5kw, the vibration frequency is 1000 times/min, the vibrating screen consists of a single-layer filter screen, and the aperture of the filter screen is 6mm;
S4, conveying the small particles with the diameter of 0-5mm obtained in the step S3 into a ball mill through a conveying belt, grinding the waste into slurry by taking grinding stones and water as media, and adding the components in proportion: 2 tons (0-5 mm) of core material waste, 3-4 tons of high-wear-resistance aluminum balls and 2 tons of water, grinding the core material with the diameter of 0-5mm into fine powder with the diameter of 100-200 meshes, wherein the grinding time is 1-2h;
S5, discharging: introducing compressed air into the ball mill for discharging, wherein the pressure of the compressed air is 0.4-0.8MPa, and the discharging time is 10-15min;
S6, the vibrating screen is used for further filtering out impurities and large particles: the filter screen consists of two layers of filter screens, wherein the pore diameter of the upper layer of filter screen is 3 x 3mm, the pore diameter of the lower layer of filter screen is 1 x 1mm, and the impurity content of filtered slurry is less than 0.1%;
s7, filter pressing: removing water from the slurry screened in the step S6 by a filter press, wherein the pressure is 0.8-1.2MPa, and pressing the slurry into cake with the water content of 15% -30%;
S8, pumping the water extruded by the S7 filter press into the ball mill in the S4 through a booster pump, so as to realize water circulation.
2. The efficient core scrap recycling apparatus according to claim 1, wherein: the first sieving device (4) comprises a first sieving box (41), a single-layer filter screen (42) is arranged in the first sieving box (41), and the first sieving box (41) is driven to vibrate by a motor.
3. The efficient core scrap recycling apparatus according to claim 1, wherein: the ball mill (6) comprises a rotary drum, two ends of the rotary drum are respectively provided with a rotary shaft, the rotary shafts are rotatably arranged on the frame, and the rotary shafts are driven by a motor.
4. The efficient core scrap recycling apparatus according to claim 1, wherein: the second sieving device (7) comprises a second sieving box (71), a double-layer filter screen (72) is arranged in the second sieving box (71), and the second sieving box (71) is driven by a motor.
5. The efficient core scrap recycling apparatus according to claim 1, wherein: the filter press (8) is a plate-frame filter press.
6. The efficient core scrap recycling apparatus according to claim 1, wherein: the grinding stone is a high-wear-resistance aluminum ball.
7. The efficient core scrap recycling apparatus according to claim 1, wherein: the content of alumina in the high wear-resistant aluminum ball is 92%, and the mixing proportion of the high wear-resistant aluminum ball is as follows: 70% of diameter of 30-50mm and 30% of diameter of 50-70 mm.
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| CN202011363952.1A CN112453032B (en) | 2020-11-27 | 2020-11-27 | Core material waste recycling device and production process thereof |
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| CN202011363952.1A CN112453032B (en) | 2020-11-27 | 2020-11-27 | Core material waste recycling device and production process thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108893615A (en) * | 2018-07-05 | 2018-11-27 | 郑州中科新兴产业技术研究院 | A method of metallic aluminium is recycled from aluminium ash |
| CN208852943U (en) * | 2018-09-11 | 2019-05-14 | 淮北花园新材料有限公司 | A kind of paper honeycomb ash wall body plate waste treatment device |
| CN110090718A (en) * | 2019-06-05 | 2019-08-06 | 山东鲁泰建材科技集团有限公司 | A kind of plate waste recovery systems and recovery method |
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2020
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108893615A (en) * | 2018-07-05 | 2018-11-27 | 郑州中科新兴产业技术研究院 | A method of metallic aluminium is recycled from aluminium ash |
| CN208852943U (en) * | 2018-09-11 | 2019-05-14 | 淮北花园新材料有限公司 | A kind of paper honeycomb ash wall body plate waste treatment device |
| CN110090718A (en) * | 2019-06-05 | 2019-08-06 | 山东鲁泰建材科技集团有限公司 | A kind of plate waste recovery systems and recovery method |
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