CN112500007A - Dry production process for flexible machine-made sandstone - Google Patents
Dry production process for flexible machine-made sandstone Download PDFInfo
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- CN112500007A CN112500007A CN202011566930.5A CN202011566930A CN112500007A CN 112500007 A CN112500007 A CN 112500007A CN 202011566930 A CN202011566930 A CN 202011566930A CN 112500007 A CN112500007 A CN 112500007A
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
- C04B20/026—Comminuting, e.g. by grinding or breaking; Defibrillating fibres other than asbestos
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/04—Silica-rich materials; Silicates
- C04B14/06—Quartz; Sand
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B20/00—Use of materials as fillers for mortars, concrete or artificial stone according to more than one of groups C04B14/00 - C04B18/00 and characterised by shape or grain distribution; Treatment of materials according to more than one of the groups C04B14/00 - C04B18/00 specially adapted to enhance their filling properties in mortars, concrete or artificial stone; Expanding or defibrillating materials
- C04B20/02—Treatment
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Materials Engineering (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Civil Engineering (AREA)
- Crushing And Grinding (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The invention discloses a dry-process production process of flexible machine-made sandstone, which relates to the field of sandstone production processes and comprises a continuous crushing and screening process, a third crushing process, a second screening process, a circulating process, a third screening process, a fourth screening process, a sand making process, a circulating process, a flexible 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 can adjust the proportion of the sand and stone to meet various customer requirements; the invention is convenient to adjust the particle size of the product and can meet the requirements of different products; compared with the traditional vibrating screen, the composite powder removing type powder concentrator in the powder removing process is more efficient, the powder content is controllable, and the screen mesh cannot be blocked.
Description
Technical Field
The invention relates to the field of sandstone production processes, in particular to a dry-process production process of flexible machine-made sandstone.
Background
The traditional dry-method machine-made sandstone production process generally produces products according to three specifications, namely machine-made sand, melon seeds and cunzi, solid wastes are stone powder, the proportion of the products is generally difficult to change after production line put into production, flexible customization can not be carried out along with customer demands or markets, market profits are missed, and therefore flexible production technology is more and more valued.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides a dry 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 production process of the flexible machine-made sand 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, and screening the product after secondary 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 secondary crushing equipment to be crushed continuously;
step two, a third crushing procedure: crushing the product a obtained in the step one through third crushing equipment to obtain a product b after third crushing;
step three, a second screening process: screening the product b obtained in the second step by secondary screening equipment to obtain a product c3 at the upper layer, a product c2 at the middle layer and a product c1 at the lower layer of the secondary screening equipment respectively;
step four, a circulating procedure: returning the product c3 obtained in the step three to the step two and putting the product into the tertiary crushing equipment;
step five, a third screening process: screening the product C2 obtained in the step three through three-time screening equipment to obtain products C1, C2 and C3 with sequentially increased diameters;
step six, a fourth screening process: screening the product c1 obtained in the step three through four screening devices to obtain a product A, B, d with sequentially increased diameters;
step seven, a sand making process: making sand from the product d obtained in the sixth step through sand making equipment to obtain a product f;
step eight, a circulating procedure: returning the product f obtained in the step seven to the step six, and putting the product f into the four-time screening equipment;
ninth, flexible sand making process: returning the product C1 obtained in the fifth step to the seventh step and putting the product C1 into the sand making equipment;
step ten, flexible aggregate working procedure: and (4) returning the products' C2 and/or C3 obtained in the fifth step to the second step, and putting the products into the third crushing equipment.
As a further technical scheme, in the step one, the primary crushing equipment is one or more of a counterattack crusher, a hammer crusher and a gyratory crusher, the secondary crushing equipment is one or more of a cone crusher, a single-cylinder crusher and a multi-cylinder crusher, and the diameter of the product a is less than 40 mm.
As a further technical scheme, in the second step, the tertiary crushing equipment is a vertical shaft type impact crusher, and the diameter of the product b is less than 35 mm.
As a further technical scheme, in the third step, the secondary screening equipment is of a double-layer structure and adopts one of a linear screen, a circular vibration screen, a resonance screen and a probability screen, and the diameter of an upper-layer screen hole of the secondary screening equipment is 31-33mm, and the diameter of a lower-layer screen hole of the secondary screening equipment is 5-6 mm.
As a further technical scheme, the tertiary screening equipment in the fifth 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 25-26mm, and the diameter of a lower-layer screen hole of the tertiary screening equipment is 15-16 mm.
As a further technical scheme, the fourth-time screening equipment in the sixth step is a composite powder removing type powder concentrator, the diameter of the product A is smaller than 0.075mm, the diameter of the product B is 0.075-3mm, and the diameter of the product d is larger than 3mm and smaller than 4.75 mm.
And as a further technical scheme, the sand making equipment in the seventh step is a vertical shaft type impact crusher or a roller press.
The invention has the beneficial effects that:
1. the invention has the advantages of both traditional dry production and flexible production, and can adjust the proportion of the sand and stone to meet various customer requirements;
2. the invention is convenient to adjust the particle size of the product and can meet the requirements of different products;
3. compared with the traditional vibrating screen, the composite powder removing type powder concentrator in the powder removing process is more efficient, the powder content is controllable, and the screen mesh cannot be blocked.
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 production process of the flexible machine-made sand 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 one or more of a back-impact crusher, a hammer crusher and a gyratory crusher; performing secondary crushing on the crushed product by secondary crushing equipment, wherein the secondary crushing equipment is one or more of a cone crusher, a single-cylinder crusher and a multi-cylinder crusher; screening the product after the secondary crushing by primary screening equipment to obtain a product a0 at the upper layer and a product a at the lower layer of the primary screening equipment, wherein the product a0 is thrown into the secondary crushing equipment to be continuously crushed, and the diameter of the product a is less than 40 mm;
step two, a third crushing procedure: crushing the product a obtained in the step one by using a vertical shaft type impact crusher to obtain a product b after the third crushing, wherein the diameter of the product b is less than 35 mm;
step three, a second screening process: screening the product b obtained in the second step through a secondary screening device, wherein the secondary screening device is of a double-layer structure, one of a linear screen, a circular vibration screen, a resonance screen and a probability screen is adopted, the diameter of an upper-layer screen hole is 31-33mm, and the diameter of a lower-layer screen hole is 5-6mm, so that a product c3 (incapable of passing through the upper-layer screen hole), a product c2 (capable of passing through the upper-layer screen hole and incapable of passing through the lower-layer screen hole) and a product c1 (capable of passing through the lower-layer screen hole) which are respectively positioned at the upper layer of the secondary screening device are obtained;
step four, a circulating procedure: returning the product c3 obtained in the step three to the step two, and putting the product into the third crushing equipment for continuous crushing;
step five, a third screening process: screening the product C2 obtained in the third step by 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 25-26mm, and the diameter of a lower layer screen hole is 15-16mm, so that a product C3 (which cannot pass through the upper layer screen hole), a product C2 (which can pass through the upper layer screen hole and cannot pass through the lower layer screen hole) and a product C1 (which can pass through the lower layer screen hole) which are respectively positioned at the upper layer of the third screening device are obtained;
step six, a fourth screening process: sieving the product c1 obtained in the step three by a composite powder removing type powder concentrator to obtain a product A with the diameter of less than 0.075mm, a product B with the diameter of 0.075-3mm and a product d with the diameter of more than 3mm and less than 4.75 mm;
step seven, a sand making process: making sand from the product d obtained in the sixth step by using a vertical shaft type impact crusher or a roller press to obtain a product f;
step eight, a circulating procedure: returning the product f obtained in the step seven to the step six, and putting the product f into the fourth screening equipment for continuous screening;
ninth, flexible sand making process: returning the product C1 obtained in the step five to the step seven according to the actual production requirement, and putting the product C1 into the sand making equipment;
step ten, flexible aggregate working procedure: and returning the products' C2 and/or C3 obtained in the step five to the step two according to the actual production requirement, and putting the products into the third crushing equipment for continuous crushing, so that the sand making yield is increased, the aggregate is reduced, and the sand-gravel ratio is adjusted.
A, B, C1, C2 and C3 in the products are five products, the ratio is flexibly adjusted according to market needs (namely step nine and step ten), the sand making yield is increased, and the melon seeds or the size of the melon seeds are reduced, and vice versa, wherein the product A is stone powder, the product B is machine-made sand, and the products C1, C2 and C3 are aggregates with sequentially increased particle sizes.
Compared with the prior art, the process provided by the invention is generally divided into five products, namely, three aggregate products with three particle sizes, machine-made sand and solid waste stone powder, and the proportion between the aggregate and the sand is adjusted according to market demands, and on the other hand, the proportion between different particle size sections 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 (7)
1. A dry 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, and screening the product after secondary 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 secondary crushing equipment to be crushed continuously;
step two, a third crushing procedure: crushing the product a obtained in the step one through third crushing equipment to obtain a product b after third crushing;
step three, a second screening process: screening the product b obtained in the second step by secondary screening equipment to obtain a product c3 at the upper layer, a product c2 at the middle layer and a product c1 at the lower layer of the secondary screening equipment respectively;
step four, a circulating procedure: returning the product c3 obtained in the step three to the step two and putting the product into the tertiary crushing equipment;
step five, a third screening process: screening the product C2 obtained in the step three through three-time screening equipment to obtain products C1, C2 and C3 with sequentially increased diameters;
step six, a fourth screening process: screening the product c1 obtained in the step three through four screening devices to obtain a product A, B, d with sequentially increased diameters;
step seven, a sand making process: making sand from the product d obtained in the sixth step through sand making equipment to obtain a product f;
step eight, a circulating procedure: returning the product f obtained in the step seven to the step six, and putting the product f into the four-time screening equipment;
ninth, flexible sand making process: returning the product C1 obtained in the fifth step to the seventh step and putting the product C1 into the sand making equipment;
step ten, flexible aggregate working procedure: and (4) returning the products' C2 and/or C3 obtained in the fifth step to the second step, and putting the products into the third crushing equipment.
2. The dry production process of flexible machine-made sand and stone according to claim 1, characterized in that: in the step one, the primary crushing equipment is one or more of a counterattack crusher, a hammer crusher and a gyratory crusher, the secondary crushing equipment is one or more of a cone crusher, a single-cylinder crusher and a multi-cylinder crusher, and the diameter of the product a is smaller than 40 mm.
3. The dry production process of flexible machine-made sand and stone according to claim 1, characterized in that: and in the second step, the tertiary crushing equipment is a vertical shaft impact crusher, and the diameter of the product b is less than 35 mm.
4. The dry production process of flexible machine-made sand and stone according to claim 1, characterized in that: in the third step, the secondary screening equipment is of a double-layer structure and adopts one 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 secondary screening equipment is 31-33mm, and the diameter of the lower-layer screen hole of the secondary screening equipment is 5-6 mm.
5. The dry production process of flexible machine-made sand and stone according to claim 1, characterized in that: and fifthly, 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, wherein the diameter of an upper-layer screen hole of the tertiary screening equipment is 25-26mm, and the diameter of a lower-layer screen hole of the tertiary screening equipment is 15-16 mm.
6. The dry production process of flexible machine-made sand and stone according to claim 1, characterized in that: and in the sixth step, the fourth-time screening equipment is a composite powder removing type powder concentrator, the diameter of the product A is smaller than 0.075mm, the diameter of the product B is 0.075-3mm, and the diameter of the product d is larger than 3mm and smaller than 4.75 mm.
7. The dry production process of flexible machine-made sand and stone according to claim 1, characterized in that: and seventhly, the sand making equipment is a vertical shaft type impact crusher or a roller press.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011566930.5A CN112500007A (en) | 2020-12-25 | 2020-12-25 | Dry production process for flexible machine-made sandstone |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011566930.5A CN112500007A (en) | 2020-12-25 | 2020-12-25 | Dry production process for flexible machine-made sandstone |
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| CN112500007A true CN112500007A (en) | 2021-03-16 |
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| CN202011566930.5A Pending CN112500007A (en) | 2020-12-25 | 2020-12-25 | Dry production process for flexible machine-made sandstone |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114160293A (en) * | 2021-12-08 | 2022-03-11 | 中国电建集团成都勘测设计研究院有限公司 | Wet production process for reducing mica content in machine-made sand |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11333310A (en) * | 1998-05-29 | 1999-12-07 | Kobe Steel Ltd | Aggregate production method and apparatus therefor |
| CN102806133A (en) * | 2012-08-23 | 2012-12-05 | 中铁五局（集团）有限公司 | Machine-made sand processing process |
| CN105921246A (en) * | 2016-06-15 | 2016-09-07 | 张荣斌 | Mechanism sand production system and method |
| CN109013006A (en) * | 2018-08-02 | 2018-12-18 | 贵州成智重工科技有限公司 | A kind of double host crushing production lines and method based on frequency conversion control technique |
| 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 |
-
2020
- 2020-12-25 CN CN202011566930.5A patent/CN112500007A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11333310A (en) * | 1998-05-29 | 1999-12-07 | Kobe Steel Ltd | Aggregate production method and apparatus therefor |
| CN102806133A (en) * | 2012-08-23 | 2012-12-05 | 中铁五局（集团）有限公司 | Machine-made sand processing process |
| CN105921246A (en) * | 2016-06-15 | 2016-09-07 | 张荣斌 | Mechanism sand production system and method |
| CN109013006A (en) * | 2018-08-02 | 2018-12-18 | 贵州成智重工科技有限公司 | A kind of double host crushing production lines and method based on frequency conversion control technique |
| 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 |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114160293A (en) * | 2021-12-08 | 2022-03-11 | 中国电建集团成都勘测设计研究院有限公司 | Wet production process for reducing mica content in machine-made sand |
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Application publication date: 20210316 |