CN111135930A - Machine-made sand stone crushing, shaping and screening production process - Google Patents
Machine-made sand stone crushing, shaping and screening production process Download PDFInfo
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- CN111135930A CN111135930A CN201911355784.9A CN201911355784A CN111135930A CN 111135930 A CN111135930 A CN 111135930A CN 201911355784 A CN201911355784 A CN 201911355784A CN 111135930 A CN111135930 A CN 111135930A
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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
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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
- 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
- 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
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
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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
- 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
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
- B02C2023/165—Screen denying egress of oversize material
Abstract
The invention discloses a machine-made sand crushing, shaping and screening production process, relates to the field of sand production processes, and mainly comprises a crushing process, a crushing and grinding shaping process, a primary screening process, a circulating process and a secondary screening process. The invention has the beneficial effects that: the method has short process flow, and 1-2 times of crushing is reduced compared with the traditional process flow; the method uses less equipment, and the number of the equipment is reduced by more than 30% compared with the traditional process; maintenance personnel are reduced by more than 40%; compared with the traditional method, the method has less dust and is more environment-friendly.
Description
Technical Field
The invention relates to the field of sandstone production processes, in particular to a mechanical sandstone crushing, shaping and screening production process.
Background
The traditional machine-made sandstone production process needs 3-4 times of crushing, not only has long crushing process, more used equipment and more maintenance personnel, but also easily generates dust to cause environmental pollution, and is not beneficial to sustainable development.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a machine-made sand crushing, shaping and screening production process which has the advantages of shortening the process flow, reducing process equipment and reducing the workload of related personnel, protects the ecological environment and promotes sustainable development.
The purpose of the invention is achieved by the following technical scheme: the machine-made sand stone crushing, shaping and screening production process comprises the following steps:
step one, a crushing procedure: crushing the ore by a crusher to obtain crushed ore a;
step two, a grinding and shaping process: mixing the ore a obtained in the step one with water in proportion and processing the mixture by crushing and grinding shaping equipment to obtain a mixture b of the ore and the water;
step three, a first screening process: screening the mixture b obtained in the second step by a primary screening device to obtain products c1, c2 and c3 which are respectively positioned on the upper layer, the middle layer and the lower layer of the device;
step four, a circulating procedure: returning the product c1 obtained in the step three to the step two, mixing the product c1 into the ore a, and repeating the operation of the step two and the step three;
step five, a second screening process: and (4) performing secondary screening on the product c3 obtained in the step three through a secondary screening device to obtain products d1, d2 and d3 which are respectively positioned on the upper layer, the middle layer and the lower layer of the device.
Further, the crusher in the step one is one or more of a gyratory crusher, a jaw crusher, a hammer crusher and an impact crusher; the diameter of the ore a is less than 350 mm.
Further, the grinding and shaping device in the second step is one or two of a semi-autogenous mill and an autogenous mill; the proportion of the ore a to the water is distributed according to the mass percent of the ore a being 65-95%; the diameter of the ore in the mixture b is less than 150 mm.
Further, the primary screening equipment in the third step is one or two of a linear screen, a circular vibration screen, a resonance screen and a probability screen; the primary screening equipment is a double-layer screen, the diameter of an upper-layer screen hole is 25-90 mm, and the diameter of a lower-layer screen hole is 5-75 mm.
Further, the secondary screening equipment in the fifth step is one or two of a linear screen, a circular vibration screen, a resonance screen and a probability screen; the secondary screening equipment is a double-layer screen, the diameter of the upper-layer screen hole is 0.5-50 mm, and the diameter of the lower-layer screen hole is 0.03-37.5 mm.
Preferably, one or two of steel balls, steel bars and pebbles are added into the grinding and shaping device in the step two as a medium.
Preferably, the diameter of the medium is 40-200 mm; the volume of the medium added accounts for 3% -40% of the internal volume of the device.
The invention has the beneficial effects that:
1. the method has short process flow, and 1-2 times of crushing is reduced compared with the traditional process flow;
2. the method uses less equipment, and the number of the equipment is reduced by more than 30% compared with the traditional process;
3. maintenance personnel are reduced by more than 40%;
4. compared with the traditional method, the method has less dust and is more environment-friendly.
Drawings
FIG. 1 is a block diagram of the process flow of the present invention.
Detailed Description
Example 1: the machine-made sand stone crushing, shaping and screening production process comprises the following steps:
step one, a crushing procedure: crushing the ore by a gyratory crusher to obtain crushed ore a, wherein the diameter of the ore a is less than 300 mm;
step two, a grinding and shaping process: distributing the ore a obtained in the step one and water according to the mass percent of the ore a of 85%, adding the ore a into a semi-autogenous mill, adding steel balls with the diameter of 90mm into the semi-autogenous mill, wherein the volume of the added steel balls accounts for 5% of the internal volume of the semi-autogenous mill; obtaining a mixture b of the ore and water, wherein the diameter of the ore in the mixture b is less than 70 mm;
step three, a first screening process: screening the mixture b obtained in the step two for the first time through a double-layer linear sieve with the upper layer sieve pore diameter of 37.5mm and the lower layer sieve pore diameter of 19mm to obtain products c1, c2 and c3 which are respectively positioned on the upper layer, the middle layer and the lower layer of the double-layer linear sieve;
step four, a circulating procedure: returning the product c1 obtained in the step three to the step two, mixing the product c1 into the ore a, and repeating the operation of the step two and the step three;
step five, a second screening process: sieving the product c3 obtained in the third step for the second time through a double-layer linear sieve with the diameter of the upper-layer sieve hole being 5mm and the diameter of the lower-layer sieve hole being 0.074mm to obtain products d1, d2 and d3 which are respectively positioned at the upper layer, the middle layer and the lower layer of the equipment;
the products c2, d1 and d2 are 3 products, and the diameter of the product d2 is 0.074-5 mm; the diameter of the product d1 is 5-19 mm; the diameter of the product c2 is 19-37.5 mm. Compared with the traditional process flow, the crushing time is reduced by 2 times, the used equipment is reduced by 45 percent, and the number of related maintenance personnel is reduced by 48 percent; no dust is generated in steps 2-5 in the method, and compared with the traditional process, the method has the advantages of less dust and environmental friendliness.
Example 2: the machine-made sand stone crushing, shaping and screening production process comprises the following steps:
step one, a crushing procedure: crushing the ore by a gyratory crusher to obtain crushed ore a, wherein the diameter of the ore a is less than 250 mm;
step two, a grinding and shaping process: distributing the ore a obtained in the step one and water according to the mass percent of the ore a of 78%, adding the ore a into a semi-autogenous mill, adding a steel ball with the diameter of 120mm into the semi-autogenous mill, wherein the volume of the added steel ball accounts for 10% of the internal volume of the semi-autogenous mill; obtaining a mixture b of the ore and water, wherein the diameter of the ore in the mixture b is less than 60 mm;
step three, a first screening process: the mixture b obtained in the step two is sieved for the first time through a double-layer linear sieve with the diameter of an upper-layer sieve hole being 31.5mm and the diameter of a lower-layer sieve hole being 9.5mm, and products c1, c2 and c3 which are respectively positioned on the upper layer, the middle layer and the lower layer of the double-layer linear sieve are obtained;
step four, a circulating procedure: returning the product c1 obtained in the step three to the step two, mixing the product c1 into the ore a, and repeating the operation of the step two and the step three;
step five, a second screening process: sieving the product c3 obtained in the third step for the second time through a double-layer linear sieve with the diameter of the upper-layer sieve hole being 5mm and the diameter of the lower-layer sieve hole being 0.074mm to obtain products d1, d2 and d3 which are respectively positioned at the upper layer, the middle layer and the lower layer of the equipment;
the products c2, d1 and d2 are 3 products, and the diameter of the product d2 is 0.074-5 mm; the diameter of the product d1 is 5-9.5 mm; the diameter of the product c2 is 9.5-31.5 mm. The embodiment has 2 times of crushing less than the traditional process flow, the used equipment is 37 percent less than the traditional process flow, and the related maintenance personnel is 40 percent less than the traditional process flow; no dust is generated in steps 2-5 in the method, and compared with the traditional process, the method has the advantages of less dust and environmental friendliness.
Example 3: the machine-made sand stone crushing, shaping and screening production process comprises the following steps:
step one, a crushing procedure: crushing the ore by a gyratory crusher to obtain crushed ore a, wherein the diameter of the ore a is less than 330 mm;
step two, a grinding and shaping process: distributing the ore a obtained in the step one and water according to the mass percent of the ore a of 85%, adding the ore a into a semi-autogenous mill, adding a steel bar with the diameter of 90mm into the semi-autogenous mill, wherein the volume of the added steel bar accounts for 5% of the internal volume of the semi-autogenous mill; obtaining a mixture b of the ore and water, wherein the diameter of the ore in the mixture b is less than 70 mm;
step three, a first screening process: screening the mixture b obtained in the second step for the first time through a double-layer linear sieve with the diameter of the upper-layer sieve hole being 63mm and the diameter of the lower-layer sieve hole being 26.5mm to obtain products c1, c2 and c3 which are respectively positioned on the upper layer, the middle layer and the lower layer of the double-layer linear sieve;
step four, a circulating procedure: returning the product c1 obtained in the step three to the step two, mixing the product c1 into the ore a, and repeating the operation of the step two and the step three;
step five, a second screening process: sieving the product c3 obtained in the third step for the second time through a double-layer linear sieve with the diameter of the upper-layer sieve hole being 5mm and the diameter of the lower-layer sieve hole being 0.15mm to obtain products d1, d2 and d3 which are respectively positioned at the upper layer, the middle layer and the lower layer of the equipment;
the products c2, d1 and d2 are 3 products, and the diameter of the product d2 is 0.15-5 mm; the diameter of the product d1 is 5-26.5 mm; the diameter of the product c2 is 26.5-63 mm. Compared with the traditional process flow, the crushing time is reduced by 2 times, the used equipment is reduced by 46 percent, and the related maintenance personnel is reduced by 44 percent; no dust is generated in steps 2-5 in the method, and compared with the traditional process, the method has the advantages of less dust and environmental friendliness.
Example 4: the machine-made sand stone crushing, shaping and screening production process comprises the following steps:
step one, a crushing procedure: crushing the ore by a gyratory crusher to obtain crushed ore a, wherein the diameter of the ore a is less than 200 mm;
step two, a grinding and shaping process: distributing the ore a obtained in the step one and water according to the mass percent of the ore a of 82%, adding the ore a into a semi-autogenous mill, adding a steel ball with the diameter of 60mm into the semi-autogenous mill, wherein the volume of the added steel ball accounts for 20% of the internal volume of the semi-autogenous mill; obtaining a mixture b of the ore and water, wherein the diameter of the ore in the mixture b is less than 60 mm;
step three, a first screening process: screening the mixture b obtained in the second step for the first time through a double-layer linear sieve with the diameter of the sieve hole at the upper layer being 20mm and the diameter of the sieve hole at the lower layer being 10mm to obtain products c1, c2 and c3 which are respectively positioned at the upper layer, the middle layer and the lower layer of the double-layer linear sieve;
step four, a circulating procedure: returning the product c1 obtained in the step three to the step two, mixing the product c1 into the ore a, and repeating the operation of the step two and the step three;
step five, a second screening process: sieving the product c3 obtained in the third step for the second time through a double-layer linear sieve with the diameter of the sieve hole at the upper layer being 4mm and the diameter of the sieve hole at the lower layer being 0.074mm to obtain products d1, d2 and d3 which are respectively positioned at the upper layer, the middle layer and the lower layer of the equipment;
the products c2, d1 and d2 are 3 products, and the diameter of the product d2 is 0.074-4 mm; the diameter of the product d1 is 4-10 mm; the diameter of the product c2 is 10-20 mm. The embodiment has 2 times of crushing less than the traditional process flow, the used equipment is 53 percent less than the traditional process flow, and the related maintenance personnel is 55 percent less than the traditional process flow; no dust is generated in steps 2-5 in the method, and compared with the traditional process, the method has the advantages of less dust and environmental friendliness.
According to the embodiment, compared with the traditional process flow, the crushing frequency is reduced, the process flow is shortened, the required process equipment is greatly reduced, the required maintenance personnel is also greatly reduced, the generation of dust is reduced, the ecological environment is effectively protected, the sustainable development is promoted, and the method can be widely popularized and applied to the field of sandstone production.
It should be understood that equivalent substitutions and changes to the technical solution and the inventive concept of the present invention should be made by those skilled in the art to the protection scope of the appended claims.
Claims (7)
1. The machine-made sand stone crushing, shaping and screening production process is characterized by comprising the following steps of: the method comprises the following steps:
step one, a crushing procedure: crushing the ore by a crusher to obtain crushed ore a;
step two, a grinding and shaping process: mixing the ore a obtained in the step one with water in proportion and processing the mixture by crushing and grinding shaping equipment to obtain a mixture b of the ore and the water;
step three, a first screening process: screening the mixture b obtained in the second step by a primary screening device to obtain products c1, c2 and c3 which are respectively positioned on the upper layer, the middle layer and the lower layer of the device;
step four, a circulating procedure: returning the product c1 obtained in the step three to the step two, mixing the product c1 into the ore a, and repeating the operation of the step two and the step three;
step five, a second screening process: and (4) performing secondary screening on the product c3 obtained in the step three through a secondary screening device to obtain products d1, d2 and d3 which are respectively positioned on the upper layer, the middle layer and the lower layer of the device.
2. The machine-made sandstone crushing, shaping and screening production process as claimed in claim 1, wherein the production process comprises the following steps: the crusher in the step one is one or more of a gyratory crusher, a jaw crusher, a hammer crusher and a counterattack crusher; the diameter of the ore a is less than 350 mm.
3. The machine-made sandstone crushing, shaping and screening production process as claimed in claim 1, wherein the production process comprises the following steps: the grinding and shaping equipment in the second step is one or two of a semi-autogenous mill and an autogenous mill; the proportion of the ore a to the water is distributed according to the mass percent of the ore a being 65-95%; the diameter of the ore in the mixture b is less than 150 mm.
4. The machine-made sandstone crushing, shaping and screening production process as claimed in claim 1, wherein the production process comprises the following steps: the primary screening equipment in the step three is one or two of a linear screen, a circular vibration screen, a resonance screen and a probability screen; the primary screening equipment is a double-layer screen, the diameter of an upper-layer screen hole is 25-90 mm, and the diameter of a lower-layer screen hole is 5-75 mm.
5. The machine-made sandstone crushing, shaping and screening production process as claimed in claim 1, wherein the production process comprises the following steps: fifthly, the secondary screening equipment is one or two of a linear screen, a circular vibration screen, a resonance screen and a probability screen; the secondary screening equipment is a double-layer screen, the diameter of the upper-layer screen hole is 0.5-50 mm, and the diameter of the lower-layer screen hole is 0.03-37.5 mm.
6. The machine-made sandstone crushing, shaping and screening production process as claimed in claim 1, wherein the production process comprises the following steps: and adding one or two of steel balls, steel bars and pebbles into the crushing and grinding shaping equipment in the second step as a medium.
7. The machine-made sandstone crushing, shaping and screening production process of claim 6, wherein the production process comprises the following steps: the diameter of the medium is 40-200 mm; the volume of the medium added accounts for 3% -40% of the internal volume of the device.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911355784.9A CN111135930A (en) | 2019-12-25 | 2019-12-25 | Machine-made sand stone crushing, shaping and screening production process |
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| CN201911355784.9A CN111135930A (en) | 2019-12-25 | 2019-12-25 | Machine-made sand stone crushing, shaping and screening production process |
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| CN111135930A true CN111135930A (en) | 2020-05-12 |
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| KR102027947B1 (en) * | 2019-05-27 | 2019-10-02 | 김윤태 | Manufacturing Method of Sand using Blasting Stone |
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2019
- 2019-12-25 CN CN201911355784.9A patent/CN111135930A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105236782A (en) * | 2015-09-16 | 2016-01-13 | 重庆富皇混凝土有限公司 | Machine-made sand production system, and production method and application thereof |
| CN207025526U (en) * | 2017-07-19 | 2018-02-23 | 大连地拓环境科技有限公司 | A kind of barren rock Machine-made Sand production system |
| CN109399983A (en) * | 2018-09-04 | 2019-03-01 | 徐州金盟新型建材有限公司 | A kind of spoil slag Machine-made Sand and preparation method thereof |
| KR102027947B1 (en) * | 2019-05-27 | 2019-10-02 | 김윤태 | Manufacturing Method of Sand using Blasting Stone |
| CN110215999A (en) * | 2019-06-18 | 2019-09-10 | 日昌升集团有限公司 | A kind of Machine-made Sand lapicide's skill of short route |
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