CN116099595A - Technological system for preparing sand from coal gangue - Google Patents
Technological system for preparing sand from coal gangue Download PDFInfo
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- CN116099595A CN116099595A CN202310205519.2A CN202310205519A CN116099595A CN 116099595 A CN116099595 A CN 116099595A CN 202310205519 A CN202310205519 A CN 202310205519A CN 116099595 A CN116099595 A CN 116099595A
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- 239000004576 sand Substances 0.000 title claims abstract description 188
- 239000003245 coal Substances 0.000 title claims abstract description 31
- 239000000047 product Substances 0.000 claims abstract description 146
- 239000011265 semifinished product Substances 0.000 claims abstract description 57
- 239000000463 material Substances 0.000 claims abstract description 48
- 239000002994 raw material Substances 0.000 claims abstract description 41
- 238000000034 method Methods 0.000 claims abstract description 25
- 238000005406 washing Methods 0.000 claims description 39
- 239000004575 stone Substances 0.000 claims description 37
- 238000012545 processing Methods 0.000 claims description 35
- 238000011282 treatment Methods 0.000 claims description 35
- 239000010865 sewage Substances 0.000 claims description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 30
- 238000012546 transfer Methods 0.000 claims description 29
- 239000002245 particle Substances 0.000 claims description 25
- 239000013049 sediment Substances 0.000 claims description 18
- 239000000203 mixture Substances 0.000 claims description 16
- 239000002002 slurry Substances 0.000 claims description 7
- 238000005516 engineering process Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 2
- 238000012216 screening Methods 0.000 abstract description 4
- 238000004064 recycling Methods 0.000 abstract description 3
- 239000002689 soil Substances 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 7
- 230000000903 blocking effect Effects 0.000 description 4
- 238000013461 design Methods 0.000 description 4
- 239000002910 solid waste Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000007493 shaping process Methods 0.000 description 2
- 238000007873 sieving Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C1/00—Crushing or disintegrating by reciprocating members
- B02C1/02—Jaw crushers or pulverisers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2/00—Crushing or disintegrating by gyratory or cone crushers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C21/00—Disintegrating plant with or without drying of the material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
- B02C23/08—Separating or sorting of material, associated with crushing or disintegrating
- B02C23/14—Separating or sorting of material, associated with crushing or disintegrating with more than one separator
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
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- 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
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention discloses a coal gangue sand making process system, which adopts a wet sand making process, sand making raw materials are conveyed to a discharge hopper through a discharge trolley, the discharge hopper raw materials are washed to a heavy vibrating screen, and the heavy vibrating screen is used for screening; the selected materials are crushed and shaped by a jaw crusher and then are screened by a semi-finished product intermediate bin, a semi-finished product vibration feeder and a cone crusher, the selected materials are screened by a finished product vibration screen by a finished product intermediate bin and a sand making machine, qualified products are selected, and natural sand and machine-made sand are cleaned and dehydrated by a spiral sand washer, a wheel bucket sand washer and a fine sand recycling machine. The process flow is smooth and reliable, and utilizes gangue resources efficiently, natural sand and soil formed naturally are separated, and machine-made sand with better quality is manufactured, and meanwhile, the process flow is more environment-friendly and energy-saving.
Description
Technical Field
The invention relates to the field of sand making processes, in particular to a coal gangue sand making process system.
Background
China is a large country of coal reserves, production and consumption. Along with the large-scale development and utilization of coal, more and more solid waste coal gangue is discharged in the coal exploitation and coal washing processes, and the coal gangue piled up at a coal mine wellhead seriously pollutes the atmosphere, the land and the water source. The method for producing sand by using coal gangue is a good method for changing waste into valuable and recycling. The natural sand has fixed fineness modulus with various gradations, is not controlled by human factors, and the fineness modulus of the coal gangue can be controlled and adjusted through a production process according to actual use requirements.
The prior art has at least the following technical problems:
1. in the prior art, a production process system for manufacturing sand and stone recycled aggregate by taking solid waste gangue as a raw material starts to develop after recent years in China, and is still in a starting stage at present, and the main reason is that the gangue has certain viscosity and contains water and mud in the gangue. Especially coal washing gangue, the mud content is more than 40% or higher. This presents a great difficulty in handling. The coal gangue has extremely high mud-containing water content, is extremely easy to be stuck to equipment, and causes equipment damage and low productivity.
2. In the prior art, a sand making system is carried out on the coal gangue which is smaller than 40mm after sieving. Because the gangue has certain plasticity, the plastic blocking of the gangue is a difficult problem for a general vertical impact crusher. Resulting in the production line not operating normally.
3. In the prior art, the granularity of the gangue solid waste raw material has large discreteness difference. Because the material granularity is big in the difference of the discreteness, the sieving equipment is extremely easy to damage, and the production can not run smoothly.
Disclosure of Invention
The invention aims to provide a coal gangue sand making process system, which aims to solve the technical problems of high slurry content, low productivity, easy sticking and blocking and large discrete difference of granularity in the prior art.
The coal gangue has extremely high mud-containing water content, is extremely easy to be stuck to equipment, and causes equipment damage and low productivity.
In order to achieve the aim, the invention provides a coal gangue sand making process system which comprises a conveying system, a raw material processing system, a semi-finished product processing system, a natural sand washing system, a machine-made sand washing system, a finished product warehouse system and a sewage treatment system, and is characterized in that the conveying system consists of a pipeline and a belt, and the raw material processing system, the semi-finished product processing system and the finished product processing system are used for carrying out material transportation through the belt; the raw material processing system screens out semi-finished product materials and enters a semi-finished product processing system, the raw material processing system screens out finished product materials and enters the finished product processing system, and the raw material processing system screens out sediment mixture and enters a natural sand washing system; the semi-finished product treatment system screens out finished product materials through multiple treatments and enters the finished product treatment system, and the semi-finished product treatment system screens out sediment mixture and enters the machine-made sand washing system; the finished product treatment system screens out finished product materials after multiple treatments and enters a crushed stone finished product warehouse, and the finished product treatment system screens out sediment mixture and enters a machine-made sand washing system; the sediment mixture treated by the natural sand washing system and the machine-made sand washing system respectively enter a natural sand finished product warehouse and a machine-made sand finished product warehouse; sewage generated in the natural sand washing system and the machine-made sand washing system enters the sewage treatment system through a pipeline.
Further, the sewage treatment system consists of a clean water tank, a concentration tower, a filter press and a sewage tank, sediment in the sewage tank water enters the concentration tower through a slurry pump, clear water at the upper end of the concentration tower enters the clean water tank through a pipeline, sediment at the lower end of the concentration tower enters the filter press through a slurry pump, and sewage of the filter press enters the sewage tank through a pipeline.
Further, the natural sand washing system sequentially comprises a natural sand spiral sand washing machine, a natural grinding wheel bucket sand washing machine and a natural sand dewatering screen, the machine-made sand washing system sequentially comprises a machine-made sand spiral sand washing machine, a machine-made grinding wheel bucket sand washing machine and a machine-made sand dewatering screen, and pipelines are arranged on the natural sand dewatering screen and the machine-made sand dewatering screen to discharge sewage into a sewage pool.
Further, the raw material treatment system sequentially comprises a discharge hopper, a heavy vibrating screen and a jaw crusher, wherein the heavy vibrating screen is a two-layer vibrating screen, the discharge hopper is arranged at a feed inlet of the heavy vibrating screen, an outlet of the heavy vibrating screen is connected with an inlet of the jaw crusher through a belt, pipelines are arranged on the discharge hopper and the heavy vibrating screen and are connected with a clean water tank, and an outlet of the heavy vibrating screen is connected with an inlet of a sand washer of a natural grinding wheel hopper through a pipeline.
Further, the semi-manufactured goods processing system is composed of a semi-manufactured goods vibrating screen, a semi-manufactured goods transfer station and a cone crusher in sequence, the semi-manufactured goods vibrating screen is a two-layer vibrating screen, a pipeline is arranged on the semi-manufactured goods vibrating screen and connected with a clean water tank, an outlet of the semi-manufactured goods vibrating screen and an outlet of the jaw crusher are connected with an inlet of the semi-manufactured goods transfer station through a belt, a semi-manufactured goods vibrating feeder is arranged at an outlet of the semi-manufactured goods transfer station, an outlet of the semi-manufactured goods transfer station is connected with an inlet of the cone crusher through an outlet of the semi-manufactured goods vibrating feeder, and an outlet of the cone crusher is connected with an inlet of the semi-manufactured goods vibrating screen through a belt.
Further, the finished product processing system comprises a finished product vibrating screen, a finished product transfer station and a sand making machine, wherein the finished product vibrating screen is a three-layer vibrating screen, an inlet of the finished product vibrating screen is connected with an outlet of the heavy vibrating screen and another outlet of the semi-finished product vibrating screen through a belt, an outlet of the finished product vibrating screen is connected with an inlet of a finished product transfer bin through a belt, an outlet of the finished product transfer station is provided with a finished product vibrating feeder, an outlet of the finished product transfer station is connected with an inlet of the sand making machine through the finished product vibrating feeder, and an outlet of the sand making machine is connected with an inlet of the finished product vibrating screen through the belt.
Further, the finished product warehouse system comprises a natural sand finished product warehouse, a machine-made sand finished product warehouse, a large-particle broken stone finished product warehouse and a small-particle broken stone finished product warehouse, wherein an inlet of the natural sand finished product warehouse is connected with an outlet of a natural sand dewatering screen through a belt, an inlet of the machine-made sand finished product warehouse is connected with an inlet of the machine-made sand dewatering screen through a belt, inlets of the large-particle broken stone finished product warehouse and the small-particle broken stone finished product warehouse are connected with an outlet of a finished product vibrating screen through belts, the large-particle broken stone finished product warehouse receives broken stone with the diameter of 10-31.5mm in the finished product vibrating screen, and the small-particle broken stone finished product warehouse receives broken stone with the diameter of 5-10mm in the finished product vibrating screen.
Further, the sand making machine adopts a sand making structure formed by a double involute material crushing cavity shape, a material crushing superposition technology and a tooth-shaped impact plate.
Based on the technical scheme, the invention can produce the following beneficial effects:
according to the coal gangue sand making process system provided by the invention, a wet sand making process is adopted, sand making raw materials are conveyed to a raw material bin through a discharging trolley, raw material bin raw materials are washed to a heavy vibrating screen, and screening is carried out through the heavy vibrating screen; the selected materials are crushed and shaped by a jaw crusher and then are screened by a semi-finished product intermediate bin, a semi-finished product vibration feeder and a cone crusher, the selected materials are screened by a finished product vibration screen by a finished product intermediate bin and a vertical shaft sand making machine, qualified products are selected, and natural sand and machine-made sand are cleaned and dehydrated by a spiral sand washer, a wheel bucket sand washer and a fine sand recycling machine.
The process flow is smooth and reliable, and utilizes gangue resources efficiently, natural sand and soil formed naturally are separated, and better natural sand is manufactured, and meanwhile, the process flow is more environment-friendly and energy-saving.
In the early stage, a heavy vibrating screen is adopted to separate muddy water and sand of the coal gangue, so that the entry of the muddy water and sand into the system is reduced, the system is smoother, and the productivity is improved.
The sand making machine utilizes double involute material crushing and material crushing superposition technology, crushing superposition design, unique double involute crushing cavity and tooth form impact plate. The crushing material speed is overlapped, so that the material can quickly pass through the crushing cavity, and the sticking and blocking problem is solved; the sand making machine is utilized to crush and make sand on the solid waste coal gangue, so that the problem of sticking and blocking is solved, meanwhile, the sand making machine is efficient to crush, and the sand making quality requirement of sand aggregates is met.
The design of the heavy vibrating screen is adopted, the amplitude design is increased, the vibration frequency is increased, and the design of the combined cross beam and the combined screen bracket ensures that the structural strength of the screen box is high, the service life is prolonged, and the problem that equipment is easy to damage due to large discrete difference of the granularity of materials is solved.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a process flow diagram of an embodiment of the present invention;
in the figure: 1. a discharge hopper; 2. heavy vibrating screen; 3. jaw crusher; 4. a semi-finished vibrating screen; 5. a semi-finished product transfer station; 6. a cone crusher; 7. a finished product vibrating screen; 8. a finished product transfer station; 9. a sand making machine; 10. a natural sand spiral sand washer; 11. a natural grinding wheel bucket sand washer; 12. natural sand dewatering screen; 13. a machine-made spiral sand washer; 14. a machine-made grinding wheel bucket sand washer; 15. machine-made sand dewatering screen; 16. a clean water tank; 17. a concentration tower; 18. a filter press; 19. a sewage pool; 10. a semi-finished product vibration feeder; 21. a finished product vibration feeder; 22. a natural sand finished product warehouse; 23. a finished product warehouse of machine-made sand; 24. large particle crushed stone finished product warehouse; 25. small particle crushed stone finished product warehouse.
Detailed Description
For a better understanding of the objects, structures and functions of the present invention, a system for a coal gangue sand making process of the present invention will be described in further detail with reference to the accompanying drawings.
In the description of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
1-2, the coal gangue sand making process system provided by the invention comprises a conveying system, a raw material processing system, a semi-finished product processing system, a natural sand washing system, a machine-made sand washing system, a finished product warehouse system and a sewage treatment system, and is characterized in that the conveying system consists of a pipeline and a belt, and the raw material processing system, the semi-finished product processing system and the finished product processing system are used for carrying out material transportation through the belt; the raw material processing system screens out semi-finished product materials and enters a semi-finished product processing system, the raw material processing system screens out finished product materials and enters the finished product processing system, and the raw material processing system screens out sediment mixture and enters a natural sand washing system; the semi-finished product treatment system screens out finished product materials through multiple treatments and enters the finished product treatment system, and the semi-finished product treatment system screens out sediment mixture and enters the machine-made sand washing system; the finished product treatment system screens out finished product materials after multiple treatments and enters a crushed stone finished product warehouse, and the finished product treatment system screens out sediment mixture and enters a machine-made sand washing system; the sediment mixture treated by the natural sand washing system and the machine-made sand washing system respectively enter a natural sand finished product warehouse and a machine-made sand finished product warehouse; sewage generated in the natural sand washing system and the machine-made sand washing system enters the sewage treatment system through a pipeline.
The sewage treatment system consists of a clean water tank 16, a concentration tower 17, a filter press 18 and a sewage tank 19, sediment in water in the sewage tank 19 enters the concentration tower 17 through a slurry pump, clean water at the upper end of the concentration tower 17 enters the clean water tank 16 through a pipeline, sediment at the lower end of the concentration tower 17 enters the filter press 18 through a slurry pump, and sewage of the filter press 18 enters the sewage tank 19 through a pipeline.
The natural sand washing system sequentially comprises a natural sand spiral sand washer 10, a natural grinding wheel bucket sand washer 11 and a natural sand dewatering screen 12, the machine-made sand washing system sequentially comprises a machine-made sand spiral sand washer 13, a machine-made grinding wheel bucket sand washer 14 and a machine-made sand dewatering screen 15, and pipelines are arranged on the natural sand dewatering screen 12 and the machine-made sand dewatering screen 15 to discharge sewage into a sewage tank 19.
The raw material treatment system sequentially comprises a discharge hopper 1, a heavy vibrating screen 2 and a jaw crusher 3, wherein the heavy vibrating screen 2 is a two-layer vibrating screen, the discharge hopper 1 is arranged at a feed inlet of the heavy vibrating screen 2, an outlet of the heavy vibrating screen 2 is connected with an inlet of the jaw crusher 3 through a belt, pipelines are arranged on the discharge hopper 1 and the heavy vibrating screen 2 and are connected with a clean water tank 16, and an outlet of the heavy vibrating screen 2 is connected with an inlet of a natural grinding wheel bucket sand washer 11 through a pipeline.
The semi-finished product processing system sequentially comprises a semi-finished product vibrating screen 4, a semi-finished product transfer station 5 and a cone crusher 6, wherein the semi-finished product vibrating screen 4 is a two-layer vibrating screen, a pipeline is arranged on the semi-finished product vibrating screen 4 and is connected with a clean water tank 16, an outlet of the semi-finished product vibrating screen 4 and an outlet of a jaw crusher 3 are connected with an inlet of the semi-finished product transfer station 5 through a belt, an outlet of the semi-finished product transfer station 5 is provided with a semi-finished product vibrating feeder 20, an outlet of the semi-finished product transfer station 5 is connected with an inlet of the cone crusher 6 through an outlet of the semi-finished product vibrating feeder 20, and an outlet of the cone crusher 6 is connected with an inlet of the semi-finished product vibrating screen 4 through a belt.
The finished product processing system is characterized in that a finished product vibrating screen 7 is a three-layer vibrating screen, an inlet of the finished product vibrating screen 7 is connected with an outlet of a heavy vibrating screen 2 and another outlet of a semi-finished product vibrating screen 4 through a belt, an outlet of the finished product vibrating screen 7 is connected with an inlet of a finished product transfer bin 8 through a belt, an outlet of a finished product transfer station 8 is provided with a finished product vibrating feeder 21, an outlet of the finished product transfer station 8 is connected with an inlet of a sand making machine 9 through the finished product vibrating feeder 21, and an outlet of the sand making machine 9 is connected with an inlet of the finished product vibrating screen 7 through the belt.
The finished product warehouse system comprises a natural sand finished product warehouse 22, a machine-made sand finished product warehouse 23, a large-particle broken stone finished product warehouse 24 and a small-particle broken stone finished product warehouse 25, wherein an inlet of the natural sand finished product warehouse 22 is connected with an outlet of a natural sand dewatering screen 12 through a belt, an inlet of the machine-made sand finished product warehouse 23 is connected with an inlet of a machine-made sand dewatering screen 15 through a belt, inlets of the large-particle broken stone finished product warehouse 24 and the small-particle broken stone finished product warehouse 25 are connected with an outlet of a finished product vibrating screen 7 through belts, the large-particle broken stone finished product warehouse 24 receives broken stone with the diameter of 10-31.5mm in the finished product vibrating screen 7, and the small-particle broken stone finished product warehouse 25 receives broken stone with the diameter of 5-10mm in the finished product vibrating screen 7.
The heavy vibrating screen 2, the semi-finished vibrating screen 4 and the finished vibrating screen 7 are provided with screens with different specifications and sizes for screening materials, and huge exciting force is generated through the rotation of the eccentric blocks on the vibrating screen, so that the materials shake up and down on the equipment, the vibrating screen has an inclination angle, and the materials also move downwards.
The sand making machine 9 adopts a sand making structure formed by a double involute material crushing cavity shape, a material crushing superposition technology and a tooth-shaped counterattack plate.
The specific process flow of the invention is as follows:
the sand making raw materials are transported to the discharge hopper 1 through the discharge trolley, the sand making raw materials in the discharge hopper 1 are washed by the clean water tank 1 and then enter the heavy vibrating screen 2, the sand making raw materials screened by the heavy vibrating screen 2 are divided into three materials, the first material with larger particles cannot meet the requirements, and the first material enters the jaw crusher 3 to be crushed and shaped and then enters the semi-finished vibrating screen 4 to be screened for the second material meeting the requirements of finished products, the second material enters the finished vibrating screen 7, and the third sand making raw materials washed out by clean water enter the natural sand spiral sand washer 10 to be processed.
The silt mixture enters a natural sand spiral sand washer 10 and is treated by a natural grinding wheel bucket sand washer 11 and a natural dewatering screen 12 to obtain clean natural sand, and the natural sand is transported to a natural sand finished product warehouse 22 by a belt.
The crushed raw materials which are required to be secondarily screened after being processed by the jaw crusher 3 come to a semi-finished product vibrating screen 4 to be processed, the crushed raw materials on the semi-finished product vibrating screen 4 are screened out to obtain three materials after being washed by a clean water tank 16, the crushed raw materials which firstly meet the requirements of finished products enter the finished product vibrating screen 7 again, the crushed raw materials which do not meet the requirements of the finished products enter a semi-finished product transfer bin 5, and the third sand-mud mixture which is washed out by clean water enters a machine-made spiral sand washer 13 to be processed.
The silt mixture enters a machine-made spiral sand washer 13 and is treated by a machine-made grinding wheel bucket sand washer 14 and a machine-made dewatering screen 15 to obtain clean machine-made sand, and the machine-made sand is transported to a machine-made sand finished product warehouse 23 through a belt.
The crushed raw materials entering the semi-finished product transfer bin 5 enter the cone crusher 6 for secondary crushing and shaping under the action of the semi-finished product vibration feeder 20 to obtain secondary crushed raw materials, the secondary crushed raw materials are conveyed to the semi-finished product vibration screen 4 again by the belt for screening, the secondary crushed raw materials meeting the requirements of the finished product enter the finished product vibration screen 7, and the secondary crushed raw materials not meeting the requirements of the finished product repeatedly enter the crushing and shaping operations in the cone crusher 6 again until all the secondary crushed raw materials enter the finished product vibration screen.
All the materials meeting the requirements of the finished products are processed by a finished product vibrating screen 7, the raw materials on the finished product vibrating screen 7 are washed by a clean water tank 16, and then four materials are screened, wherein the first mud sand mixture enters a machine-made sand spiral sand washer 13 through a chute to be made into machine-made sand, the second material which does not meet the requirements of a broken stone finished product warehouse enters a finished product transfer warehouse 8, broken stone with the diameter of 10-31.5mm directly enters a large-particle broken stone finished product warehouse 24 through a belt, and broken stone with the diameter of 5-10mm directly enters a small-particle broken stone finished product warehouse 25 through the belt.
The materials entering the finished product transfer bin 8 enter the sand making machine 9 for reprocessing under the action of the finished product vibration feeder 21, the qualified materials enter the large-particle broken stone finished product warehouse 24 and the small-particle broken stone finished product warehouse 25 respectively according to the diameters, and the unqualified materials enter the sand making machine 9 for processing again until all the qualified materials are qualified.
It will be understood that the invention has been described with respect to certain embodiments and that various changes and equivalents may be made to those features and embodiments without departing from the spirit and scope of the invention. In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.
Claims (8)
1. The coal gangue sand making process system comprises a conveying system, a raw material processing system, a semi-finished product processing system, a natural sand washing system, a machine-made sand washing system, a finished product warehouse system and a sewage treatment system, and is characterized in that the conveying system consists of a pipeline and a belt, and the raw material processing system, the semi-finished product processing system and the finished product processing system are used for carrying out material transportation through the belt; the raw material processing system screens out semi-finished product materials and enters a semi-finished product processing system, the raw material processing system screens out finished product materials and enters the finished product processing system, and the raw material processing system screens out sediment mixture and enters a natural sand washing system; the semi-finished product treatment system screens out finished product materials through multiple treatments and enters the finished product treatment system, and the semi-finished product treatment system screens out sediment mixture and enters the machine-made sand washing system; the finished product treatment system screens out finished product materials after multiple treatments and enters a crushed stone finished product warehouse, and the finished product treatment system screens out sediment mixture and enters a machine-made sand washing system; the sediment mixture treated by the natural sand washing system and the machine-made sand washing system respectively enter a natural sand finished product warehouse and a machine-made sand finished product warehouse; sewage generated in the natural sand washing system and the machine-made sand washing system enters the sewage treatment system through a pipeline.
2. The coal gangue sand making process system according to claim 1, wherein the sewage treatment system consists of a clean water tank (16), a concentration tower (17), a filter press (18) and a sewage tank (19), sediment in water in the sewage tank (19) enters the concentration tower (17) through a slurry pump, clean water at the upper end of the concentration tower (17) enters the clean water tank (16) through a pipeline, sediment at the lower end of the concentration tower (17) enters the filter press (18) through a slurry pump, and sewage in the filter press (18) enters the sewage tank (19) through a pipeline.
3. The coal gangue sand making process system according to claim 1, wherein the natural sand washing system sequentially comprises a natural sand spiral sand washer (10), a natural grinding wheel bucket sand washer (11) and a natural sand dewatering screen (12), and the machine-made sand washing system sequentially comprises a machine-made sand spiral sand washer (13), a machine-made grinding wheel bucket sand washer (14) and a machine-made sand dewatering screen (15), wherein the natural sand dewatering screen (12) and the machine-made sand dewatering screen (15) are provided with pipelines for discharging sewage into a sewage tank (19).
4. The coal gangue sand making process system according to claim 1, wherein the raw material treatment system sequentially comprises a discharge hopper (1), a heavy vibrating screen (2) and a jaw crusher (3), the heavy vibrating screen (2) is a two-layer vibrating screen, the discharge hopper (1) is arranged at a feed inlet of the heavy vibrating screen (2), an outlet of the heavy vibrating screen (2) is connected with an inlet of the jaw crusher (3) through a belt, pipelines are arranged on the discharge hopper (1) and the heavy vibrating screen (2) and are connected with a clean water tank (16), and an outlet of the heavy vibrating screen (2) is connected with an inlet of a natural grinding wheel bucket sand washer (11) through a pipeline.
5. The coal gangue sand making process system according to claim 1, wherein the semi-finished product treatment system sequentially comprises a semi-finished product vibrating screen (4), a semi-finished product transfer station (5) and a cone crusher (6), the semi-finished product vibrating screen (4) is a two-layer vibrating screen, a pipeline is arranged on the semi-finished product vibrating screen (4) and is connected with a clean water tank (16), an outlet of the semi-finished product vibrating screen (4) and an outlet of a jaw crusher (3) are connected with an inlet of the semi-finished product transfer station (5) through a belt, a semi-finished product vibrating feeder (20) is arranged at an outlet of the semi-finished product transfer station (5), an outlet of the semi-finished product transfer station (5) is connected with an inlet of the cone crusher (6) through an outlet of the semi-finished product vibrating feeder (20), and an outlet of the cone crusher (6) is connected with an inlet of the semi-finished product vibrating screen (4) through a belt.
6. The coal gangue sand making process system according to claim 1, wherein the finished product treatment system consists of a finished product vibrating screen (7), a finished product transfer station (8) and a sand making machine (9), the finished product vibrating screen (7) is a three-layer vibrating screen, an inlet of the finished product vibrating screen (7) is connected with an outlet of the heavy vibrating screen (2) and another outlet of the semi-finished product vibrating screen (4) through a belt, an outlet of the finished product vibrating screen (7) is connected with an inlet of the finished product transfer bin (8) through a belt, an outlet of the finished product transfer station (8) is provided with a finished product vibrating feeder (21), an outlet of the finished product transfer station (8) is connected with an inlet of the sand making machine (9) through the finished product vibrating feeder (21), and an outlet of the sand making machine (9) is connected with an inlet of the finished product vibrating screen (7) through the belt.
7. The coal gangue sand making process system according to claim 1, wherein the finished product warehouse system is composed of a natural sand finished product warehouse (22), a machine-made sand finished product warehouse (23), a large-particle broken stone finished product warehouse (24) and a small-particle broken stone finished product warehouse (25), an inlet of the natural sand finished product warehouse (22) is connected with an outlet of a natural sand dewatering screen (12) through a belt, an inlet of the machine-made sand finished product warehouse (23) is connected with an inlet of a machine-made sand dewatering screen (15) through a belt, inlets of the large-particle broken stone finished product warehouse (24) and the small-particle broken stone finished product warehouse (25) are connected with an outlet of a finished product vibrating screen (7) through belts, the large-particle broken stone finished product warehouse (24) receives broken stone with a diameter of 10-31.5mm in the finished product vibrating screen (7), and the small-particle broken stone finished product warehouse (25) receives broken stone with a diameter of 5-10mm in the finished product vibrating screen (7).
8. The gangue sand making process system as claimed in claim 6, wherein the sand making machine (9) is a sand making structure formed by adopting a double involute material crushing cavity shape and material crushing superposition technology and a tooth-shaped counterattack plate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310205519.2A CN116099595A (en) | 2023-03-06 | 2023-03-06 | Technological system for preparing sand from coal gangue |
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| CN202310205519.2A CN116099595A (en) | 2023-03-06 | 2023-03-06 | Technological system for preparing sand from coal gangue |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119114257A (en) * | 2024-11-14 | 2024-12-13 | 中国电建集团西北勘测设计研究院有限公司 | Coal gangue sand and gravel aggregate production system and production method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN119114257A (en) * | 2024-11-14 | 2024-12-13 | 中国电建集团西北勘测设计研究院有限公司 | Coal gangue sand and gravel aggregate production system and production method |
| CN119114257B (en) * | 2024-11-14 | 2025-04-01 | 中国电建集团西北勘测设计研究院有限公司 | Coal gangue sand and gravel aggregate production system and production method |
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