CN112619852A - Dry-wet production process for flexible machine-made sandstone - Google Patents
Dry-wet production process for flexible machine-made sandstone Download PDFInfo
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- CN112619852A CN112619852A CN202011566927.3A CN202011566927A CN112619852A CN 112619852 A CN112619852 A CN 112619852A CN 202011566927 A CN202011566927 A CN 202011566927A CN 112619852 A CN112619852 A CN 112619852A
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- 238000004519 manufacturing process Methods 0.000 title claims abstract description 32
- 238000012216 screening Methods 0.000 claims abstract description 108
- 238000000034 method Methods 0.000 claims abstract description 65
- 239000004576 sand Substances 0.000 claims abstract description 65
- 238000005406 washing Methods 0.000 claims abstract description 16
- 239000004575 stone Substances 0.000 claims abstract description 14
- 239000010410 layer Substances 0.000 claims description 72
- 239000002356 single layer Substances 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 239000002245 particle Substances 0.000 description 12
- 238000005516 engineering process Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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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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Abstract
The invention discloses a dry-wet production process of flexible machine-made sand and stone, which relates to the field of sand and stone production processes and comprises a continuous crushing and screening process, a secondary screening process, a fourth crushing process, a third screening process, a circulating process, a fourth screening process, a fifth screening process, a sixth screening process, a wet-method sand making process, a sand washing process, a flexible wet-method sand making process and a flexible aggregate process. The invention has the beneficial effects that: the invention has the advantages of both traditional dry production and flexible production, and simultaneously produces high-end aggregate and high-end machine-made sand to meet various customer requirements; compared with the traditional process, the invention has the advantages of low energy consumption, environmental protection and large sand production yield, and is more suitable for the market.
Description
Technical Field
The invention relates to the field of sandstone production processes, in particular to a dry-wet production process of flexible machine-made sandstone.
Background
The traditional machine-made sand production process is generally produced according to a dry method or a wet method, the yield of a single device for making sand by the dry method is small, a vertical shaft impact crusher is generally adopted, the maximum sand making amount is less than 150t/h, in addition, the grading of the sand by the vertical shaft is poor, the sand cannot be made into first-grade sand in national standard, other process adjustment grading is needed, the sand amount of a wet rod mill machine can reach 1000t/h, and the grading of the produced sand can reach the first-grade standard in national standard, so the optimized production process is the best way for improving the product quality and the efficiency;
in addition, the proportion of the gravels is difficult to change after the production line is put into production, the flexible customization can not be realized along with the requirements of customers or the market, the market profit is missed, and therefore the flexible production technology is more and more emphasized.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a dry-wet production process for flexible machine-made sandstone, which has the advantages of adjustable product particle size and high production efficiency.
The purpose of the invention is achieved by the following technical scheme: the dry-wet production process of the flexible machine-made sandstone comprises the following steps:
step one, a continuous crushing and screening process: crushing the ore by primary crushing equipment, performing secondary crushing on the crushed product by secondary crushing equipment, performing tertiary crushing on the product after the secondary crushing by tertiary crushing equipment, and screening the product after the tertiary crushing by primary screening equipment to obtain a product a0 on the upper layer and a product a on the lower layer of the primary screening equipment respectively, wherein the product a0 is put into the tertiary crushing equipment for continuous crushing;
step two, a second screening process: screening the product a obtained in the step one through secondary screening equipment to obtain a product b2 on the upper layer and a product b1 on the lower layer of the secondary screening equipment respectively;
step three, a fourth crushing procedure: crushing the product b2 obtained in the step two by four crushing devices to obtain a product c after the fourth crushing;
step four, a third screening process: screening the product c obtained in the third step by a third screening device to obtain a product d3 at the upper layer, a product d2 at the middle layer and a product d1 at the lower layer of the third screening device respectively;
step five, a circulating procedure: returning the product d3 obtained in the step four to the step three and putting the product into the fourth crushing equipment;
step six, a fourth screening process: screening the product d2 obtained in the fourth step through a fourth screening device to obtain a product e3 at the upper layer, a product e2 at the middle layer and a product e1 at the lower layer of the fourth screening device respectively;
step seven, the fifth screening process: screening the product e2 obtained in the sixth step through five screening devices to obtain a product B3 at the upper layer, a product B2 at the middle layer and a product B1 at the lower layer which are respectively positioned on the five screening devices;
step eight, the sixth screening process: screening the product e3 obtained in the sixth step through six screening devices to obtain a product C2 at the upper layer and a product C1 at the lower layer of the six screening devices respectively;
step nine, a wet sand making process: preparing sand from the product b1 obtained in the step two, the product d1 obtained in the step four and the product e1 obtained in the step six through crushing sand preparing equipment to obtain a product f;
step ten, sand washing procedure: washing the product f obtained in the ninth step with water by using sand washing equipment to obtain a product A;
eleven, a flexible wet sand making process: returning the products B1 and/or B2 obtained in the step seven to the step nine and putting the products into the crushing and sand making equipment to improve the yield of the product A;
a twelfth step of flexible aggregate: and (3) returning one or more of the products B2, B3, C1 and C2 obtained in the seventh step and/or the eighth step to the third step, and putting the products into the fourth crushing equipment.
As a further technical scheme, in the step one, the primary crushing equipment is a gyratory crusher or a jaw crusher, the secondary crushing equipment is a single-cylinder cone crusher, the tertiary crushing equipment is a single-cylinder or multi-cylinder crusher, and the diameter of the product a is smaller than 35 mm.
As a further technical scheme, in the second step, the secondary screening equipment is of a single-layer structure, one of a linear screen, a circular vibration screen, a resonance screen and a probability screen is adopted, and the diameter of a screen hole is 10-11 mm.
As a further technical scheme, the four-time crushing equipment in the third step is a vertical shaft impact crusher, and the diameter of the product b2 is less than 35 mm.
As a further technical scheme, the tertiary screening equipment in the fourth step is of a double-layer structure, one or two of a linear screen, a circular vibration screen, a resonance screen and a probability screen are adopted, the diameter of an upper-layer screen hole of the tertiary screening equipment is 32-32.5mm, and the diameter of a lower-layer screen hole of the tertiary screening equipment is 5-6 mm.
As a further technical scheme, the fourth-time screening equipment in the sixth step is of a double-layer structure, one or two of a linear screen, a circular vibration screen, a resonance screen and a probability screen are adopted, and the diameter of an upper-layer screen hole of the fourth-time screening equipment is 20-21mm, and the diameter of a lower-layer screen hole of the fourth-time screening equipment is 5-6 mm.
And as a further technical scheme, in the seventh step, the five-time screening equipment is of a double-layer structure, one or two of a linear screen, a circular vibrating screen, a resonance screen and a probability screen are adopted, and the diameter of an upper-layer screen hole of the five-time screening equipment is 15-16mm, and the diameter of a lower-layer screen hole of the five-time screening equipment is 10-11 mm.
And as a further technical scheme, in the step eight, the six-time screening equipment is of a single-layer structure, one of a linear screen, a circular vibration screen, a resonance screen and a probability screen is adopted, and the diameter of a screen hole of the six-time screening equipment is 26-26.5 mm.
As a further technical scheme, the crushing sand making equipment in the ninth step is a rod mill.
As a further technical scheme, in the step ten, the sand washing equipment is one or two of a drum-type stone washer, a bucket-wheel type sand washer, a spiral sand washer and a sand washing sieve.
The invention has the beneficial effects that:
1. the invention has the advantages of both traditional dry production and wet production, reduces water treatment systems, and achieves environmental protection and cleanness; producing aggregates and machine-made sand with different particle sizes; by adopting a flexible technology, the particle sizes of the aggregates or the proportion of the prepared sand are convenient to adjust, and the method can meet various customer requirements;
2. compared with the traditional process, the invention has the advantages of low energy consumption, environmental protection and large sand production yield, and is more suitable for the market.
Drawings
FIG. 1 is a schematic view of the production process of the present invention.
Detailed Description
The invention will be described in detail below with reference to the following drawings:
example (b): as shown in the attached figure 1, the dry-wet production process of the flexible machine-made sandstone comprises the following steps:
step one, a continuous crushing and screening process: crushing the ore by primary crushing equipment, wherein the primary crushing equipment is a gyratory crusher or a jaw crusher, performing secondary crushing on the crushed product by secondary crushing equipment, the secondary crushing equipment is a single-cylinder cone crusher, performing tertiary crushing on the product after the secondary crushing by tertiary crushing equipment, the tertiary crushing equipment is a single-cylinder or multi-cylinder crusher, screening the product after the tertiary crushing by primary screening equipment to obtain a product a0 positioned on the upper layer of the primary screening equipment and a product a positioned on the lower layer of the primary screening equipment respectively, wherein the product a0 is thrown into the tertiary crushing equipment to be continuously crushed, and the diameter of the product a is less than 35 mm;
step two, a second screening process: screening the product a obtained in the step one by secondary screening equipment, wherein the secondary screening equipment is of a single-layer structure, one of a linear screen, a circular vibration screen, a resonance screen and a probability screen is adopted, and the diameter of each screen hole is 10-11mm, so that a product b2 (which cannot pass through the screen hole) at the upper layer and a product b1 (which can pass through the screen hole) at the lower layer of the secondary screening equipment are obtained;
step three, a fourth crushing procedure: crushing the product b2 obtained in the step two by four crushing devices to obtain a product c after the fourth crushing;
step four, a third screening process: screening the product c obtained in the third step by using a third screening device, wherein the third screening device is of a double-layer structure, one or two of a linear screen, a circular vibration screen, a resonance screen and a probability screen are adopted, the diameter of an upper-layer screen hole is 32-32.5mm, and the diameter of a lower-layer screen hole is 5-6mm, so that a product d3 at the upper layer, a product d2 at the middle layer and a product d1 at the lower layer of the third screening device are obtained;
step five, a circulating procedure: returning the product d3 obtained in the step four to the step three, and putting the product into the fourth crushing equipment for continuous crushing;
step six, a fourth screening process: screening the product d2 obtained in the fourth step by a fourth screening device, wherein the fourth screening device is of a double-layer structure, one or two of a linear screen, a circular vibration screen, a resonance screen and a probability screen are adopted, the diameter of an upper-layer screen hole is 20-21mm, and the diameter of a lower-layer screen hole is 5-6mm, so that a product e3, a middle-layer product e2 and a lower-layer product e1 which are respectively positioned at the upper layer of the fourth screening device are obtained;
step seven, the fifth screening process: screening the product e2 obtained in the sixth step through five-time screening equipment, wherein the five-time screening equipment is of a double-layer structure, one or two of a linear screen, a circular vibration screen, a resonance screen and a probability screen are adopted, the diameter of an upper-layer screen hole is 15-16mm, and the diameter of a lower-layer screen hole is 10-11mm, so that a product B3, a product B2 in the middle layer and a product B1 in the lower layer which are respectively positioned at the upper layer of the five-time screening equipment are obtained;
step eight, the sixth screening process: screening the product e3 obtained in the sixth step through six-time screening equipment, wherein the six-time screening equipment is of a single-layer structure, one of a linear screen, a circular vibration screen, a resonance screen and a probability screen is adopted, and the diameter of each screen hole is 26-26.5 mm, so that a product C2 (which cannot pass through the screen hole) at the upper layer and a product C1 (which can pass through the screen hole) at the lower layer of the six-time screening equipment are obtained;
step nine, a wet sand making process: sanding the product b1 obtained in the step two, the product d1 obtained in the step four and the product e1 obtained in the step six by rod mill equipment to obtain a product f;
step ten, sand washing procedure: washing the product f obtained in the ninth step with water by using sand washing equipment, wherein the sand washing equipment is one or two of a drum-type stone washer, a bucket-type sand washer, a spiral sand washer and a sand washing sieve, so as to obtain a product A;
eleven, a flexible wet sand making process: returning the products B1 and B2 obtained in the step seven to the step nine and putting the products into the crushing and sand making equipment (shown by a broken line box on the left side in the figure 1) so as to improve the yield of the product A;
a twelfth step of flexible aggregate: and returning one or more of the products B2, B3, C1 and C2 obtained in the seventh step and/or the eighth step to the third step, and putting the products into the fourth-time crushing equipment for continuous crushing (shown by a dashed line frame on the right side in the figure 1), so that the proportion of each particle size section of the aggregate is flexibly adjusted, and the sand making amount is increased.
A, B1, B2, B3, C1 and C2 in the products are 6 products which respectively correspond to machine-made sand, aggregate with the particle size of 5-10mm, aggregate with the particle size of 10-15mm, aggregate with the particle size of 15-20mm, aggregate with the particle size of 20-25mm and aggregate with the particle size of 25-31.5mm, and the proportion of each product is flexibly adjusted according to market needs (namely step eleven and step twelve), so that the sand making yield is increased, the aggregate amount is reduced, or the proportion of the particle size of a specific part of the aggregate is reduced, and vice versa.
Compared with the prior art, the process of the invention is generally divided into six products, namely five aggregate products with different particle sizes and machine-made sand (namely product A), and the proportion between the aggregate and the sand can be adjusted according to market demands, and on the other hand, the proportion between sections with different particle sizes of the aggregate can also be adjusted.
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 (10)
1. A dry-wet method production process of flexible machine-made sandstone is characterized in that: the method comprises the following steps:
step one, a continuous crushing and screening process: crushing the ore by primary crushing equipment, performing secondary crushing on the crushed product by secondary crushing equipment, performing tertiary crushing on the product after the secondary crushing by tertiary crushing equipment, and screening the product after the tertiary crushing by primary screening equipment to obtain a product a0 on the upper layer and a product a on the lower layer of the primary screening equipment respectively, wherein the product a0 is put into the tertiary crushing equipment for continuous crushing;
step two, a second screening process: screening the product a obtained in the step one through secondary screening equipment to obtain a product b2 on the upper layer and a product b1 on the lower layer of the secondary screening equipment respectively;
step three, a fourth crushing procedure: crushing the product b2 obtained in the step two by four crushing devices to obtain a product c after the fourth crushing;
step four, a third screening process: screening the product c obtained in the third step by a third screening device to obtain a product d3 at the upper layer, a product d2 at the middle layer and a product d1 at the lower layer of the third screening device respectively;
step five, a circulating procedure: returning the product d3 obtained in the step four to the step three and putting the product into the fourth crushing equipment;
step six, a fourth screening process: screening the product d2 obtained in the fourth step through a fourth screening device to obtain a product e3 at the upper layer, a product e2 at the middle layer and a product e1 at the lower layer of the fourth screening device respectively;
step seven, the fifth screening process: screening the product e2 obtained in the sixth step through five screening devices to obtain a product B3 at the upper layer, a product B2 at the middle layer and a product B1 at the lower layer which are respectively positioned on the five screening devices;
step eight, the sixth screening process: screening the product e3 obtained in the sixth step through six screening devices to obtain a product C2 at the upper layer and a product C1 at the lower layer of the six screening devices respectively;
step nine, a wet sand making process: preparing sand from the product b1 obtained in the step two, the product d1 obtained in the step four and the product e1 obtained in the step six through crushing sand preparing equipment to obtain a product f;
step ten, sand washing procedure: washing the product f obtained in the ninth step with water by using sand washing equipment to obtain a product A;
eleven, a flexible wet sand making process: returning the products B1 and/or B2 obtained in the step seven to the step nine and putting the products into the crushing and sand making equipment to improve the yield of the product A;
a twelfth step of flexible aggregate: and (3) returning one or more of the products B2, B3, C1 and C2 obtained in the seventh step and/or the eighth step to the third step, and putting the products into the fourth crushing equipment.
2. The dry-wet production process of flexible machine-made sand and stone as claimed in claim 1, wherein the process comprises the following steps: in the step one, the primary crushing equipment is a gyratory crusher or a jaw crusher, the secondary crushing equipment is a single-cylinder cone crusher, the tertiary crushing equipment is a single-cylinder or multi-cylinder crusher, and the diameter of the product a is smaller than 35 mm.
3. The dry-wet production process of flexible machine-made sand and stone as claimed in claim 1, wherein the process comprises the following steps: and in the second step, the secondary screening equipment is of a single-layer structure, one of a linear screen, a circular vibration screen, a resonance screen and a probability screen is adopted, and the diameter of a screen hole is 10-11 mm.
4. The dry-wet production process of flexible machine-made sand and stone as claimed in claim 1, wherein the process comprises the following steps: in the third step, the four-time crushing equipment is a vertical shaft impact crusher, and the diameter of the product b2 is less than 35 mm.
5. The dry-wet production process of flexible machine-made sand and stone as claimed in claim 1, wherein the process comprises the following steps: in the fourth step, the tertiary screening equipment is of a double-layer structure and adopts one or two of a linear screen, a circular vibration screen, a resonance screen and a probability screen, and the diameter of the upper-layer screen hole of the tertiary screening equipment is 32-32.5mm, and the diameter of the lower-layer screen hole of the tertiary screening equipment is 5-6 mm.
6. The dry-wet production process of flexible machine-made sand and stone as claimed in claim 1, wherein the process comprises the following steps: and in the sixth step, the fourth-time screening equipment is of a double-layer structure, one or two of a linear screen, a circular vibration screen, a resonance screen and a probability screen are adopted, the diameter of an upper-layer screen hole of the fourth-time screening equipment is 20-21mm, and the diameter of a lower-layer screen hole of the fourth-time screening equipment is 5-6 mm.
7. The dry-wet production process of flexible machine-made sand and stone as claimed in claim 1, wherein the process comprises the following steps: and seventhly, the five-time screening equipment is of a double-layer structure, one or two of a linear screen, a circular vibration screen, a resonance screen and a probability screen are adopted, the diameter of an upper-layer screen hole of the five-time screening equipment is 15-16mm, and the diameter of a lower-layer screen hole of the five-time screening equipment is 10-11 mm.
8. The dry-wet production process of flexible machine-made sand and stone as claimed in claim 1, wherein the process comprises the following steps: and step eight, the six-time screening equipment is of a single-layer structure, one of a linear screen, a circular vibration screen, a resonance screen and a probability screen is adopted, and the diameter of a screen hole of the six-time screening equipment is 26-26.5 mm.
9. The dry-wet production process of flexible machine-made sand and stone as claimed in claim 1, wherein the process comprises the following steps: and step nine, the crushing sand making equipment is a rod mill.
10. The dry-wet production process of flexible machine-made sand and stone as claimed in claim 1, wherein the process comprises the following steps: in the step ten, the sand washing equipment is one or two of a drum-type stone washer, a bucket-wheel type sand washer, a spiral sand washer and a sand washing sieve.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011566927.3A CN112619852A (en) | 2020-12-25 | 2020-12-25 | Dry-wet production process for flexible machine-made sandstone |
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| CN202011566927.3A CN112619852A (en) | 2020-12-25 | 2020-12-25 | Dry-wet production process for flexible machine-made sandstone |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923980A (en) * | 2012-11-08 | 2013-02-13 | 中国长江三峡集团公司 | Method and system for water-power engineering mixing sand making |
| CN105833977A (en) * | 2016-05-04 | 2016-08-10 | 枣庄市金山机械有限公司 | Planar sand making system |
| WO2017057856A1 (en) * | 2015-09-30 | 2017-04-06 | 한국지질자원연구원 | Method for separating and sorting nickel laterite ores |
| CN111135934A (en) * | 2019-12-25 | 2020-05-12 | 日昌升建筑新材料设计研究院有限公司 | Machine-made gravel production process |
| CN111135928A (en) * | 2019-12-25 | 2020-05-12 | 日昌升建筑新材料设计研究院有限公司 | Three-crushing three-screening circulating production process for machine-made gravel |
| CN111135936A (en) * | 2019-12-25 | 2020-05-12 | 日昌升建筑新材料设计研究院有限公司 | Two-crushing three-screening production process for machine-made sand and stone |
-
2020
- 2020-12-25 CN CN202011566927.3A patent/CN112619852A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923980A (en) * | 2012-11-08 | 2013-02-13 | 中国长江三峡集团公司 | Method and system for water-power engineering mixing sand making |
| WO2017057856A1 (en) * | 2015-09-30 | 2017-04-06 | 한국지질자원연구원 | Method for separating and sorting nickel laterite ores |
| CN105833977A (en) * | 2016-05-04 | 2016-08-10 | 枣庄市金山机械有限公司 | Planar sand making system |
| CN111135934A (en) * | 2019-12-25 | 2020-05-12 | 日昌升建筑新材料设计研究院有限公司 | Machine-made gravel production process |
| CN111135928A (en) * | 2019-12-25 | 2020-05-12 | 日昌升建筑新材料设计研究院有限公司 | Three-crushing three-screening circulating production process for machine-made gravel |
| CN111135936A (en) * | 2019-12-25 | 2020-05-12 | 日昌升建筑新材料设计研究院有限公司 | Two-crushing three-screening production process for machine-made sand and stone |
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