Dry-wet separation mine aggregate processing system and process
Through the dry-wet separation mining aggregate processing system, combined with dry and wet production, the problems of insufficient water resources and inconvenient transportation have been solved, efficient and environmentally friendly aggregate processing has been achieved, and product quality and market competitiveness have been improved.
Patent Information
- Application Number
- CN202511015293.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-07-23
- Publication Date
- 2025-10-17
AI Technical Summary
Existing mine aggregate production has problems such as high production costs and insufficient market competitiveness due to insufficient water resources and inconvenient transportation. In addition, the full wet production cost is too high and requires a large amount of wastewater treatment.
The mine aggregate processing system adopts dry-wet separation, including dry production system and wet production system. The dry system carries out preliminary processing near the mine where there is a lack of water source, and the wet system carries out subsequent processing in areas with sufficient water source. The product is ensured to be clean through screening and water washing, and dust removal and wastewater treatment systems are configured.
It has achieved a system layout tailored to local construction conditions, reduced production costs, improved product quality and market competitiveness, ensured zero pollution and zero emissions, recycled resources, and improved economic benefits.
Smart Images
Figure CN120794400A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to a dry-wet separation mine aggregate processing system and process. BACKGROUND
[0002] In the existing market environment, the green mine industry building aggregate competition is increasingly fierce, and the quality requirements of building aggregate are also higher and higher. In addition to some aggregate indexes (such as crushing value, solidity, etc.) determined by the physical properties of the ore itself, other indexes (fineness modulus, methylene blue value, needle flake content, grain type characteristics, etc.) are determined by the aggregate production process.
[0003] The existing mine production and processing area is close to the mine area, mostly in the mountains, without production water source, using dry production, and the product transportation is extremely inconvenient. The produced aggregate has no competitiveness in the market, which affects the sale and market competitiveness of mine aggregate. Some mines are located in areas with sufficient water resources. The aggregate production and processing process is washed by full wet method, and the surface of the produced product is clean and clean, but the production cost is high, and a large amount of wastewater treatment is required. SUMMARY
[0004] The technical problem to be solved by the present application is to provide a dry-wet separation mine aggregate processing system and process for the above-mentioned problems.
[0005] The technical scheme adopted by the present application is: a dry-wet separation mine aggregate processing system, comprising: A dry production system for processing raw materials into mixed materials, the mixed materials including first, second, third and fourth materials, wherein the first material is a material with a particle size of <4.75mm, the second material is a material with a particle size of A-4.75mm, the third material is a material with a particle size of B-A, and the fourth material is a material with a particle size of C-B, C>B>A>4.75; A wet production system for screening the first, second, third and fourth materials from the mixed materials by a third screening machine, capable of using part of the second, third and / or fourth materials to prepare the first material, and capable of washing the first material; The third screening machine sprays high-pressure water on the surface of the screen surface to ensure the cleanliness of the material surface after screening and grading.
[0006] The dry production system comprises: A coarse crushing gyratory crusher for crushing the raw material to obtain a coarsely crushed material; A medium crushing cone crusher for crushing the coarsely crushed material to obtain a medium crushed material; a first screening machine configured to screen out first, fourth, fifth and sixth materials from the coarsely crushed material, the sixth material being the material with a particle size of B-4.75mm, and the fifth material being the material with a particle size of >C; a fine crushing cone crusher configured to crush the fifth material and part of the fourth material screened out by the first and second screening machines to obtain finely crushed material; a second screening machine configured to screen out third, fourth, fifth and seventh materials from the finely crushed material, the seventh material being the material with a particle size of <A; a shaping vertical shaft impact crusher configured to shape the sixth material screened out by the first screening machine and part of the fourth material, and part of the third material screened out by the second screening machine.
[0007] The dry production system is configured with a dust removal system.
[0008] The wet production system comprises: The third screening machine is configured to screen out first, second, third and fourth materials from the mixed material; a three-screen sand washing all-in-one machine configured to wash the first material screened out by the third screening machine; a rod mill configured to perform sand making on the material with a particle size of >4.75mm and part of the second, third and / or fourth material screened out by the closed-circuit screening machine to obtain rod-milled material; a closed-circuit screening machine configured to screen out first material and material with a particle size of >4.75mm from the rod-milled material; a sand washing all-in-one machine configured to wash the first material screened out by the closed-circuit screening machine.
[0009] The wet production system is configured with a wastewater treatment system. A mixed material conveying mechanism is arranged between the dry production system and the wet production system.
[0010] The mixed material conveying mechanism adopts a belt conveyor or a long-distance belt conveyor.
[0011] A dry-wet separation mine aggregate processing technology, comprising: S100, processing raw material into mixed material by a dry production system, the mixed material comprising first, second, third and fourth materials; wherein the first material is the material with a particle size of <4.75mm, the second material is the material with a particle size of A-4.75mm, the third material is the material with a particle size of B-A, and the fourth material is the material with a particle size of C-B, C>B>A>4.75; S200, conveying the mixed material processed by the dry production system to a wet production system; S300, screening the first, second, third and fourth materials from the mixed material through a third screening machine in the wet production system, preparing the first material by using part of the second, third and / or fourth materials through a rod mill in the wet production system, and washing the first material through a sand washing machine in the wet production system; The third screening machine sprays high-pressure water on the surface of the screen mesh to ensure the cleanliness of the material surface after screening and grading.
[0012] Step S100 includes: S110, crushing the raw material through a coarse crushing gyratory crusher to obtain the coarsely crushed material; S120, crushing the coarsely crushed material through a medium crushing cone crusher to obtain the medium crushed material; S130, screening the first, fourth, fifth and sixth materials from the coarsely crushed material through a first screening machine, the sixth material being the material with a particle size of B-4.75 mm, and the fifth material being the material with a particle size > C; S140, crushing the fifth material and part of the fourth material screened out by the first and second screening machines through a fine crushing cone crusher to obtain the finely crushed material; S150, screening the third, fourth, fifth and seventh materials from the finely crushed material through a second screening machine, the seventh material being the material with a particle size < A, and sending the fifth material and part of the fourth material back to the fine crushing cone crusher; S160, shaping the sixth material screened out by the first screening machine and part of the fourth material, and part of the third material screened out by the second screening machine through a shaping vertical shaft impact crusher.
[0013] Step S300 includes: S310, screening the first, second, third and fourth materials from the mixed material through the third screening machine; S320, washing the first material screened out by the third screening machine through a three-screen sand washing all-in-one machine; S330, performing sand making on the material with a particle size > 4.75 mm screened out by the closed-circuit screening machine and part of the second, third and / or fourth material through a rod mill to obtain the rod-milled material; S340, screening the first material and the material with a particle size > 4.75 mm from the rod-milled material through a closed-circuit screening machine, and sending the material with a particle size > 4.75 mm back to the rod mill; S350, washing the first material screened out by the closed-circuit screening machine through a sand washing all-in-one machine.
[0014] The beneficial effects of the present application are that the mine aggregate processing system is divided into a dry production system for processing raw materials into mixed materials and a wet production system for screening materials of various particle sizes from the mixed materials and carrying out sand making and water washing, so that the front-end dry production link can be arranged near the mine lacking water source and inconvenient transportation according to the construction conditions, water source conditions, etc., the rear-end wet production link can be arranged separately in the area with good water source conditions and convenient transportation, the finished product aggregate is conveniently transported out, and the long-distance belt conveyor is used for material transportation between the dry and wet production systems.
[0015] The present application realizes system partition and block through the dry-wet separation production process, and is arranged according to the construction conditions, so as to achieve the purpose of reasonable, smooth and efficient system arrangement.
[0016] In the present application, the front-end fine crushing, one-two screening and shaping link are dry production, the rear-end finished product screening and sand making are wet production, the finished product aggregate can be selected to be washed to remove mud and free mica and stone powder generated in the production process, so as to ensure the clean surface of the finished product aggregate, ensure that the mud content of the finished product aggregate meets the specification, improve the environmental protection of the system, reduce the production cost, improve the product quality, enhance the market competitiveness, and improve the economic benefit.
[0017] The present application realizes flexible and controllable product grading ratio by setting the three-stage crushing, three-stage screening and open-closed circuit combined process flow, configuring the "extrusion type" crusher, ensuring the product particle type and quality by setting the shaping link, ensuring the cleanliness of the product by setting the finished product screening and washing link, and ensuring the product quality and grading adjustment by setting the rod mill closed-circuit sand making link, which can realize the fineness modulus adjustment and poor-selling grading sand making of machine-made sand, recycles the fine sand while washing the finished product machine-made sand, avoids the waste of resources, reduces the abrasion of the filter cloth of the subsequent pressure filtration link by the fine sand in water, and reduces the cost.
[0018] The present application configures the dust removal system for the front-end dry production system and the wastewater treatment system for the rear-end wet production system, realizes zero pollution and zero emission of the entire production and processing system, and ensures the environmental protection of the processing system. BRIEF DESCRIPTION OF DRAWINGS
[0019] Figure 1 The system block diagram of the embodiment.
[0020] Unloading bin 1, gyratory crusher 2, semi-finished product stockpile 3, secondary crushing and adjusting silo 4, secondary crushing cone crusher 5, adjusting silo for the first screening workshop 6, first screening machine 7, fine crushing and adjusting silo 8, fine crushing cone crusher 9, adjusting silo for the second screening workshop 10, second screening machine 11, shaping and adjusting silo 12, shaping vertical shaft impact crusher 13, dry mixing stockpile 14, wet mixing stockpile 15, third screening machine 16, three-screen sand washing machine 17, sand making and adjusting silo 18, rod mill 19, closed-circuit screening machine 20, sand washing machine 21, first material stockpile 22, second material stockpile 23, third material stockpile 24, fourth material stockpile 25, mud cake stockpile 26, stone powder storage ash tank 27, long-distance belt conveyor 28. DETAILED DESCRIPTION
[0021] like Figure 1 As shown, this embodiment is a dry-wet separation mining aggregate processing system, including a dry production system and a wet production system, wherein the dry production system is arranged near mines with a lack of water resources and inconvenient transportation, and the wet production system is arranged in areas with good water resources and convenient transportation.
[0022] In this example, the dry production system is used to process the raw material into a mixture, which includes the first, second, third and fourth materials, wherein the first material is a material with a particle size of less than 4.75 mm, the second material is a material with a particle size of A-4.75 mm, the third material is a material with a particle size of BA, and the fourth material is a material with a particle size of CB, C>B>A>4.75.
[0023] In this embodiment, the wet production system is used to screen out the first, second, third and fourth materials from the mixed material through the third screening machine, can use part of the second, third and / or fourth materials to prepare the first material, and can wash the first material with water.
[0024] In this example, the surface of the third screening machine screen is sprayed with high-pressure water to ensure the cleanliness of the material surface after screening and grading.
[0025] In some specific embodiments, the dry process production system comprises: The coarse gyratory crusher is used to crush the raw material to obtain coarsely crushed material; The secondary cone crusher is used to crush the coarsely crushed material to obtain the secondary crushed material; The first screening machine is equipped with three layers of screens, with the screen apertures of C, B, and 4.75 mm from top to bottom, respectively. It is used to screen out the first, fourth, fifth, and sixth materials from the coarsely crushed materials. The sixth material is the material with a particle size of B-4.75 mm, and the fifth material is the material with a particle size greater than C. The fine crushing cone crusher is used to crush the fifth material and part of the fourth material screened by the first screening machine and the second screening machine to obtain finely crushed materials; The second screening machine is provided with three layers of screens, and the screen aperture from top to bottom is C, B and A mm, respectively, for screening the third, fourth, fifth and seventh materials from the finely crushed materials, and the seventh material is the material with a particle size of <A; The shaping vertical shaft impact crusher is used for shaping the sixth material screened out by the first screening machine and part of the fourth material, and part of the third material screened out by the second screening machine.
[0026] The raw material mined in the stockyard is transported to the unloading platform of the coarse crushing workshop of the processing system by the self-unloading truck, directly unloaded into the unloading bin, buffered and stored, and then crushed in the coarse crushing gyratory crusher. The crushed material is transported to the semi-finished product yard by the belt conveyor for storage. The semi-finished product yard has a certain stacking capacity and can meet the production of the system for at least 1 day.
[0027] The material is transported from the semi-finished product yard to the medium crushing adjusting bin of the medium crushing workshop by the belt conveyor, and after transfer and coordination, it is crushed in the medium crushing cone crusher. The crushed material is transported to the first screening bin in the first screening workshop by the belt conveyor, and after adjustment of the first screening bin, the material is screened in the first screening machine.
[0028] After being screened by the first screening machine, four kinds of graded materials with particle sizes of 4.75-0 mm (first material), B-4.75 mm (sixth material composed of second and third materials), C-B mm (fourth material) and >C mm (fifth material) are formed. The material with a particle size of >C mm and part of the material with a particle size of C-B mm (proportion adjustable) are transported to the fine crushing adjusting bin in the fine crushing workshop by the belt conveyor; part of the material with a particle size of C-B mm (proportion adjustable) and the material with a particle size of B-4.75 mm are transported to the shaping adjusting bin in the vertical shaft shaping workshop for storage and transfer by the belt conveyor; and the material with a particle size of <4.75 mm is directly stored in the dry mixing yard.
[0029] The material coming from the fine crushing adjusting bin is mainly the material with a particle size of >C mm and part of the material with a particle size of C-B mm screened out by the second screening machine, and the material with a particle size of >C mm and part of the material with a particle size of C-B mm screened out by the first screening machine. The material in the fine crushing adjusting bin is crushed in the fine crushing cone crusher, and the crushed material is transported to the second screening bin by the belt conveyor for storage and transfer, and then screened in the second screening machine.
[0030] After being screened by the second screening machine, four kinds of materials with particle sizes of <Amm (the seventh material, composed of the first and second materials), B-Amm, C-Bmm, and >Cmm are formed, wherein the material with a particle size of >Cmm and part of the material with a particle size of C-Bmm (the proportion is adjustable) are closed-circuited to the fine crushing adjustment bin by the belt conveyor; part of the material with a particle size of C-Bmm (the proportion is adjustable), part of the material with a particle size of B-Amm (the proportion is adjustable), and the material with a particle size of <A are transported to the dry mixing yard by the belt conveyor; and part of the material with a particle size of B-Amm (the proportion is adjustable) can be transported to the shaping adjustment bin by the belt conveyor for stacking and transfer.
[0031] The material crushed and finely crushed by the three-stage "extrusion type" crusher has good particle type, and can be directly formed into a finished product; part of the material with a particle size of B-A is set to enter the shaping adjustment bin and then undergo a subsequent material shaping link, so as to further improve the quality; through the design of the shunt, the best-selling material can be selected for shaping, so as to finely control the quality of the material.
[0032] The material in the shaping adjustment bin can be selected to enter the shaping vertical shaft impact crusher for shaping operation, or can be selected to skip the shaping link through the set opening process, so as to accurately control the proportion of the shaped material and control the quality of the product. The material after shaping is directly transported to the dry mixing yard by the belt conveyor.
[0033] In some specific embodiments, the entire dry production system is configured with a dust removal system, and the collected stone powder is temporarily stored in the ash tank, and then transported out by a self-unloading truck according to traffic conditions and market conditions, or enters the subsequent production link together with the material in the dry mixing yard.
[0034] In some specific embodiments, the wet production system comprises: The third screening machine is provided with three layers of screens, and the screen aperture from top to bottom is B, A, and 4.75 mm, which is used to screen the first, second, third, and fourth materials from the mixed material; The three-screen sand washing machine is used to wash the first material screened by the third screening machine; The rod mill is used to sand making based on the material with a particle size of >4.75 mm screened by the closed-circuit screening machine, and part of the second, third, and / or fourth material, to obtain the rod-milled material; The closed-circuit screening machine is provided with a single layer of screen, and the screen aperture is 4.75 mm, which is used to screen the first material and the material with a particle size of >4.75 mm from the rod-milled material; The sand washing machine is used to wash the first material screened by the closed-circuit screening machine.
[0035] The mixture of the wet mixing stockyard in this embodiment is transported by the belt conveyor to the third screening machine for finished product screening. High-pressure water spraying is performed on the surface of the screen of the third screening machine to ensure the cleanliness of the material surface after screening and grading.
[0036] After screening and grading by the third screening machine, gravel with particle sizes of C-B mm, B-A mm, A-4.75 mm, and <4.75 mm machine-made sand are formed. The gravel with particle sizes of C-B mm, B-A mm, and A-4.75 mm is transported by the belt conveyor to the fourth material pile, the third material pile, and the second material pile, respectively. A bifurcated opening is provided, and the three types of gravel with particle sizes of C-B mm, B-A mm, and A-4.75 mm can also enter the sand making adjustment bin for storage, transfer, and participation in subsequent sand making operations. The proportion of this process is controllable. The <4.75 mm machine-made sand enters the three-screen sand washing all-in-one machine 17 for sand washing and fine sand recovery operations to ensure the quality of the machine-made sand product. The <4.75 mm machine-made sand that has been washed is transported by the belt conveyor to the first material pile for storage. Part of the <4.75 mm machine-made sand can enter the sand making adjustment bin for storage and transfer. The proportion of this process is controllable.
[0037] The material in the sand making adjustment bin enters the rod mill for sand making operations, and the fineness modulus of the machine-made sand is adjusted. The material after the sand making operation by the rod mill enters the closed-circuit screening machine for screening operations. The >4.75 mm oversized particles are returned to the sand making adjustment bin for storage and transfer. The machine-made sand with a particle size of <4.75 mm enters the sand washing all-in-one machine for cleaning and sand washing and recovery operations, and is then transported by the belt conveyor to the first material pile for storage and dehydration.
[0038] In some specific embodiments, the wet production system is configured with a wastewater treatment system. The high-pressure water spraying for cleaning the surface of the screen of the third screening machine produces wastewater containing fine particles and machine-made sand after screening and grading, which are jointly fed into the three-screen sand washing all-in-one machine for sand washing and fine sand recovery operations. The wastewater produced by the three-screen sand washing all-in-one machine is treated in the subsequent wastewater treatment system.
[0039] Water is added in the rod mill for sand making, and the wastewater containing fine particles and machine-made sand are separated by the closed-circuit screening machine and then fed into the sand washing all-in-one machine for sand washing and fine sand recovery operations. The wastewater produced by the sand washing all-in-one machine is treated in the subsequent wastewater treatment system.
[0040] All production wastewater enters the wastewater treatment system, and through the wastewater treatment process of mixing + dosing + concentration + pressure filtration, the produced mud cake is stacked and disposed in the mud cake stockyard, and the clean recycled water continues to enter the system for wet production operations.
[0041] In some embodiments, a material conveying mechanism is provided between the dry production system and the wet production system, which can be a rubber belt conveyor or a long distance belt conveyor. If the dry production and the wet production are arranged in the same area, the rubber belt conveyor is used to transport the material from the dry mixing yard to the wet mixing yard; if the dry production and the wet production are arranged in different areas, the long distance belt conveyor is used to transport the mixed material from the dry mixing yard to the wet mixing yard for storage and transportation.
[0042] In some embodiments, the mine aggregate processing system based on dry-wet separation comprises the following steps: S100, processing the raw material into mixed material by the dry production system, the mixed material comprising first, second, third and fourth materials; The first material is a material with a particle size of <4.75 mm, the second material is a material with a particle size of A-4.75 mm, the third material is a material with a particle size of B-A, and the fourth material is a material with a particle size of C-B, C>B>A>4.75. S200, transporting the mixed material processed by the dry production system to the wet production system; S300, screening the first, second, third and fourth materials from the mixed material by the third screening machine in the wet production system, preparing the first material by the rod mill in the wet production system using part of the second, third and / or fourth materials, and washing the first material by the sand washer in the wet production system; The third screening machine is provided with a high-pressure water spray on the surface of the screen to ensure the cleanliness of the material after screening and grading.
[0043] In some more specific embodiments, step S100 comprises: S110, crushing the raw material by the coarse crushing gyratory crusher to obtain the coarsely crushed material; S120, crushing the coarsely crushed material by the medium crushing cone crusher to obtain the medium crushed material; S130, screening the first, fourth, fifth and sixth materials from the coarsely crushed material by the first screening machine, the sixth material being a material with a particle size of B-4.75 mm and the fifth material being a material with a particle size of >C; S140, crushing the fifth material and part of the fourth material screened by the first screening machine and the second screening machine by the fine crushing cone crusher to obtain the finely crushed material; S150, screening the third, fourth, fifth and seventh materials from the finely crushed material by the second screening machine, the seventh material being a material with a particle size of <A, and sending the fifth material and part of the fourth material back to the fine crushing cone crusher; S160, shaping the sixth material and part of the fourth material screened out by the first screening machine, and part of the third material screened out by the second screening machine by a shaping vertical shaft impact crusher (optionally entering or not entering shaping).
[0044] In some more specific embodiments, step S300 comprises: S310, screening out the first, second, third and fourth materials from the mixed material by the third screening machine; S320, washing the first material screened out by the third screening machine by the three-screen sand washing all-in-one machine; S330, performing sand making operation on the material with particle size > 4.75 mm screened out by the closed-circuit screening machine, and part of the second, third and / or fourth material by the rod mill to obtain the rod-milled material; S340, screening out the first material and the material with particle size > 4.75 mm from the rod-milled material by the closed-circuit screening machine, and sending the material with particle size > 4.75 mm back to the rod mill; S350, washing the first material screened out by the closed-circuit screening machine by the sand washing all-in-one machine.
Claims
1. A dry-wet separation mining aggregate processing system, characterized in that: include: A dry production system is used to process raw materials into a mixed material, wherein the mixed material includes a first material, a second material, a third material and a fourth material, wherein the first material is a material with a particle size of less than 4.75 mm, the second material is a material with a particle size of A-4.75 mm, the third material is a material with a particle size of BA, and the fourth material is a material with a particle size of CB, where C>B>A>4.75; A wet production system, for screening the first, second, third and fourth materials from the mixed material through a third screening machine, capable of using part of the second, third and / or fourth materials to prepare the first material, and capable of washing the first material with water; The surface of the screen of the third screening machine is sprayed with high-pressure water to ensure the cleanliness of the surface of the material after screening and grading.
2. The dry-wet separation mining aggregate processing system according to claim 1 is characterized in that: The dry process production system comprises: The coarse gyratory crusher is used to crush the raw material to obtain coarsely crushed material; The secondary cone crusher is used to crush the coarsely crushed material to obtain the secondary crushed material. The first screening machine is used to screen the first, fourth, fifth and sixth materials from the coarsely crushed materials, the sixth material is the material with a particle size of B-4.75mm, and the fifth material is the material with a particle size greater than C; The fine crushing cone crusher is used to crush the fifth material and part of the fourth material screened by the first screening machine and the second screening machine to obtain finely crushed materials; The second screening machine is used to screen out the third, fourth, fifth and seventh materials from the finely crushed materials, and the seventh material is the material with a particle size of less than A; The shaping vertical shaft impact crusher is used to shape the sixth material and part of the fourth material screened by the first screening machine, and part of the third material screened by the second screening machine.
3. The dry-wet separation mining aggregate processing system according to claim 1 or 2, characterized in that: The dry production system is equipped with a dust removal system.
4. The dry-wet separation mining aggregate processing system according to claim 1, characterized in that: The wet process production system comprises: The third screening machine is used to screen out the first, second, third and fourth materials from the mixed material; Three-screen sand washing machine is used to clean the first material screened by the third screening machine; Rod mill, used for sand making based on the material with a particle size greater than 4.75 mm screened by the closed circuit screening machine, as well as part of the second, third and / or fourth materials, to obtain the rod-milled material; Closed-circuit screening machine, used to screen out the first material and the material with a particle size greater than 4.75mm from the rod-milled material; The integrated sand washing machine is used to clean the first material screened by the closed-circuit screening machine.
5. The dry-wet separation mining aggregate processing system according to claim 1 or 4, characterized in that: The wet production system is equipped with a wastewater treatment system.
6. The dry-wet separation mining aggregate processing system according to claim 1, characterized in that: A mixture transport mechanism is provided between the dry process production system and the wet process production system.
7. The dry-wet separation mining aggregate processing system according to claim 6, characterized in that: The mixture transport mechanism adopts a belt conveyor or a long-distance belt conveyor.
8. A dry-wet separation mining aggregate processing process, characterized in that: include: S100, processing the raw material into a mixed material through a dry production system, where the mixed material includes the first, second, third and fourth materials; Among them, the first material is a material with a particle size of less than 4.75 mm, the second material is a material with a particle size of A-4.75 mm, the third material is a material with a particle size of BA, and the fourth material is a material with a particle size of CB, C>B>A>4.75; S200, transporting the mixed material processed by the dry production system to the wet production system; S300, screening the first, second, third, and fourth materials from the mixed material using a third screening machine in the wet production system, using a portion of the second, third, and / or fourth materials in a rod mill in the wet production system to prepare a first material, and washing the first material in a sand washing machine in the wet production system; The surface of the screen of the third screening machine is sprayed with high-pressure water to ensure the cleanliness of the surface of the material after screening and grading.
9. The dry-wet separation mining aggregate processing process according to claim 8, characterized in that: Step S100 includes: S110, crushing the raw material by a coarse gyratory crusher to obtain coarsely crushed material; S120, crushing the coarsely crushed material by a secondary cone crusher to obtain a secondary crushed material; S130. Screening the coarsely crushed material into first, fourth, fifth, and sixth materials using a first screening machine. The sixth material is a material having a particle size of B-4.75 mm, and the fifth material is a material having a particle size greater than C. S140, crushing the fifth material and part of the fourth material screened by the first screening machine and the second screening machine by fine cone crushing to obtain finely crushed material; S150, screening out the third, fourth, fifth, and seventh materials from the finely crushed material by a second screening machine, wherein the seventh material is material having a particle size less than A, and sending the fifth material and part of the fourth material back to the fine crushing cone crusher; S160. Shaping the sixth material and part of the fourth material screened by the first screening machine, and part of the third material screened by the second screening machine, using a shaping vertical shaft impact crusher.
10. The dry-wet separation mining aggregate processing process according to claim 8, characterized in that: Step S300 includes: S310, screening out the first, second, third and fourth materials from the mixed material by the third screening machine; S320, cleaning the first material screened by the third screening machine using a three-screen sand washing machine; S330, performing sand making operation on the material with a particle size greater than 4.75 mm screened by the closed-circuit screening machine and part of the second, third and / or fourth materials through the rod mill to obtain rod-milled material; S340, screening the first material and the material with a particle size greater than 4.75 mm from the rod-milled material through a closed-circuit screening machine, and returning the material with a particle size greater than 4.75 mm to the rod mill; S350: Cleaning the first material screened by the closed-circuit screening machine by using an integrated sand washing machine.