CN110215998B - Simplified machine-made sandstone production process - Google Patents
Simplified machine-made sandstone production process Download PDFInfo
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- CN110215998B CN110215998B CN201910527734.8A CN201910527734A CN110215998B CN 110215998 B CN110215998 B CN 110215998B CN 201910527734 A CN201910527734 A CN 201910527734A CN 110215998 B CN110215998 B CN 110215998B
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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 simplified machine-made sandstone production process, and relates to the field of sandstone production processes. The invention aims to solve the technical problem of long crushing process of the existing machine-made sandstone production process. The method comprises the following steps: the method comprises the following steps: grinding and shaping; step two: a first screening process; step three: a crushing process; step four: a circulating procedure; step five: and (5) a second screening process. The method has the advantages that the process flow is short, 1-2 times of crushing is reduced compared with the traditional flow, the used equipment is less, the equipment quantity is reduced by more than 30% compared with the traditional flow, the problem of labor cost is solved, and the maintenance personnel can be reduced by more than 40%; compared with the traditional process, the invention can reduce dust and is more environment-friendly. The invention is suitable for machine-made sand.
Description
Technical Field
The invention relates to the field of sandstone production process.
Background
The machine-made sand is sand processed by the sand making machine and other accessory equipment, the finished product is more regular, and the sand can be processed into sand with different rules and sizes according to different process requirements, so that the daily requirement can be better met. The machine-made sand production line is formed by combining equipment such as a vibrating feeder, a jaw crusher, a sand making machine, a vibrating screen, a rubber belt conveyor and the like. According to different process requirements, equipment of various types are combined to meet different process requirements of customers. Firstly, primarily crushing stone materials by a coarse crusher, then conveying the generated coarse materials to a fine crusher by a rubber belt conveyor for further crushing, screening the finely crushed stone materials by a vibrating screen to obtain two kinds of stones, carrying out sand making by a stone sand making machine which meets the feeding granularity of the sand making machine, and feeding the other part of the stones back to a fine slope. One part of stones of the sand making machine is made into sand, the sand is made into finished sand after being washed by a sand washing machine (optional), and the other part of the stones of the sand making machine is broken again. At present, the traditional machine-made sandstone production process needs 3-4 times of crushing, the crushing process is long, the used equipment is more, the number of maintenance personnel is more, and the defects of environmental pollution caused by dust are obvious.
Disclosure of Invention
The invention provides a simplified machine-made sandstone production process, aiming at solving the technical problem of long crushing process of the existing machine-made sandstone production process.
A simplified machine-made sandstone production process is carried out according to the following steps:
the method comprises the following steps: grinding and shaping:
mixing the ore and water, and passing through a stone breaking and shaping machine to obtain a mixture a;
step two: a first screening process:
screening the mixture a obtained in the step one by using a screening device to obtain a product b1, a product b2 and a product b 3;
the particle size of the product b1 in the second step is more than that of the product b2 is more than that of the product b 3;
step three: a crushing procedure:
crushing the product b1 obtained in the step two by a crusher to obtain a product c;
step four: and (3) a circulating process:
returning the product c obtained in the step three to the step two, and performing a screening process to obtain a product b2 and a product b 3; the particle size of the product b2 is more than that of the product b 3;
step five: a second screening process:
mixing the product b3 obtained in the step two and the product b3 obtained in the step four by using a screening device, and then carrying out secondary screening to obtain a product d1, a product d2 and a product d 3;
the particle size of the product d1 > the particle size of the product d2 > the particle size of the product d3 in step five.
Further, the grinding and shaping device in the first step is one or two selected from a semi-autogenous grinding machine and an autogenous grinding machine.
Further, the mass ratio of the ore to the water in the step one is 1 (0.65-0.95).
Further, the particle size of the mixture a in the step one is less than or equal to 150 mm.
Further, the screening equipment in the second step is one or two selected from a linear screen, a circular vibration screen, a resonance screen and a probability screen.
Furthermore, the screening equipment in the second step is provided with a double-layer screen, the aperture of the upper layer screen is 20-90 mm, the aperture of the lower layer screen is 5-75 mm, and the aperture of the upper layer screen is larger than that of the lower layer screen.
Further, the crusher in step three is selected from one or more of a gyratory crusher, a jaw crusher, a hammer crusher and a counterimpact crusher.
Furthermore, the granularity of the product c in the third step is less than or equal to 100 mm.
Further, in the fifth step, the screening equipment is one or two of a linear screen, a circular vibration screen, a resonance screen and a probability screen.
Further, the screening equipment in the fifth step is provided with a double-layer screen; the aperture of the upper-layer screen mesh is 0.5-50 mm; the aperture of the lower layer screen is 0.03-37.5 mm, and the aperture of the upper layer screen is larger than that of the lower layer screen.
The invention has the beneficial effects that:
the method has short process flow, only one crushing process is needed, and 1-2 times of crushing is reduced compared with the traditional process;
the method uses less equipment, and the number of the equipment is reduced by more than 30% compared with the traditional process;
the invention solves the labor cost, and the maintainers can be reduced by more than 40%;
compared with the traditional process, the invention can reduce dust and is more environment-friendly.
The method is used for preparing machine-made sand.
Detailed Description
The technical solution of the present invention is not limited to the specific embodiments listed below, and includes any combination of the specific embodiments.
The first embodiment is as follows: the embodiment of the production process of the simplified machine-made sandstone is carried out according to the following steps:
the method comprises the following steps: grinding and shaping:
mixing the ore and water, and passing through a stone breaking and shaping machine to obtain a mixture a;
step two: a first screening process:
screening the mixture a obtained in the step one by using a screening device to obtain a product b1, a product b2 and a product b 3;
the particle size of the product b1 in the second step is more than that of the product b2 is more than that of the product b 3;
step three: a crushing procedure:
crushing the product b1 obtained in the step two by a crusher to obtain a product c;
step four: and (3) a circulating process:
returning the product c obtained in the step three to the step two, and performing a screening process to obtain a product b2 and a product b 3; the particle size of the product b2 is more than that of the product b 3;
step five: a second screening process:
mixing the product b3 obtained in the step two and the product b3 obtained in the step four by using a screening device, and then carrying out secondary screening to obtain a product d1, a product d2 and a product d 3;
the particle size of the product d1 > the particle size of the product d2 > the particle size of the product d3 in step five.
Compared with the prior art, the beneficial effects of this embodiment are:
the method has the advantages that the process flow is short, only one crushing procedure is needed, and 1-2 times of crushing is reduced compared with the traditional process;
the method has the advantages that the number of used equipment is small, and is less than that of the traditional process by more than 30%;
the embodiment solves the labor cost, and the maintenance personnel can be reduced by more than 40%;
compared with the traditional process, the method can reduce dust and is more environment-friendly.
This embodiment is used for preparing machine-made grit.
The second embodiment is as follows: the first difference between the present embodiment and the specific embodiment is: the grinding and shaping equipment in the first step is one or two selected from a semi-autogenous grinding machine and an autogenous grinding machine. The rest is the same as the first embodiment.
The third concrete implementation mode: the present embodiment differs from the first or second embodiment in that: in the first step, the mass ratio of the ore to the water is 1 (0.65-0.95). The other is the same as in the first or second embodiment.
The fourth concrete implementation mode: the difference between this embodiment mode and one of the first to third embodiment modes is: the granularity of the mixture a in the first step is less than or equal to 150 mm. The others are the same as in one of the first to third embodiments.
The fifth concrete implementation mode: the difference between this embodiment and one of the first to fourth embodiments is: and in the second step, screening equipment is selected from one or two of a linear screen, a circular vibration screen, a resonance screen and a probability screen. The other is the same as one of the first to fourth embodiments.
The sixth specific implementation mode: the difference between this embodiment and one of the first to fifth embodiments is: and in the second step, the screening equipment is provided with a double-layer screen, the aperture of the upper layer screen is 20-90 mm, the aperture of the lower layer screen is 5-75 mm, and the aperture of the upper layer screen is larger than that of the lower layer screen. The other is the same as one of the first to fifth embodiments.
The screening apparatus of this embodiment was provided with a double screen in order to obtain 3 different particle size ranges of product, the product remaining on the upper screen was product b1, the product remaining on the lower screen was product b2, and the product passing through the lower screen was product b 3.
The seventh embodiment: the difference between this embodiment and one of the first to sixth embodiments is: the crusher in the third step is one or more selected from a gyratory crusher, a jaw crusher, a hammer crusher and a counterattack crusher. The other is the same as one of the first to sixth embodiments.
The specific implementation mode is eight: the present embodiment differs from one of the first to seventh embodiments in that: the granularity of the product c in the third step is less than or equal to 100 mm. The other is the same as one of the first to seventh embodiments.
The specific implementation method nine: the present embodiment differs from the first to eighth embodiments in that: and in the fifth step, the screening equipment is one or two of a linear screen, a circular vibration screen, a resonance screen and a probability screen. The rest is the same as the first to eighth embodiments.
The detailed implementation mode is ten: the present embodiment differs from one of the first to ninth embodiments in that: the screening equipment in the fifth step is provided with a double-layer screen; the aperture of the upper-layer screen mesh is 0.5-50 mm; the aperture of the lower layer screen is 0.03-37.5 mm, and the aperture of the upper layer screen is larger than that of the lower layer screen. The other is the same as one of the first to ninth embodiments.
The screening apparatus of this embodiment was provided with a double screen in order to obtain 3 different particle size ranges of product, the product remaining on the upper screen being product d1, the product remaining on the lower screen being product d2, and the product passing through the lower screen being product d 3.
The following examples were used to demonstrate the beneficial effects of the present invention:
the first embodiment is as follows:
the simplified machine-made sandstone production process is carried out according to the following steps:
the method comprises the following steps: grinding and shaping:
mixing the ore and water, and passing through a semi-autogenous mill to obtain a mixture a; the granularity of the mixture a is less than or equal to 70 mm; the mass ratio of the ore to the water is 1: 0.85;
step two: a first screening process:
screening the mixture a obtained in the step one by using a screening device to obtain a product b1, a product b2 and a product b 3;
the particle size of the product b1 in the second step is more than that of the product b2 is more than that of the product b 3;
wherein the screening equipment is a linear screen; the device is provided with a double-layer screen, the aperture of the upper layer screen is 37.5mm, and the aperture of the lower layer screen is 19 mm;
step three: a crushing procedure:
crushing the product b1 obtained in the step two by using a cone crusher to obtain a product c; the particle size of the product c is less than or equal to 90mm
Step four: and (3) a circulating process:
returning the product c obtained in the step three to the step two, and performing a screening process to obtain a product b2 and a product b 3; the particle size of the product b2 is more than that of the product b 3;
step five: a second screening process:
mixing the product b3 obtained in the step two and the product b3 obtained in the step four by using a screening device, and then carrying out secondary screening to obtain a product d1, a product d2 and a product d 3;
wherein the screening equipment is a linear screen; the device is provided with a double-layer screen, the aperture of the upper layer screen is 5mm, and the aperture of the lower layer screen is 0.074 mm;
the particle size of the product d1 > the particle size of the product d2 > the particle size of the product d3 in step five.
The particle size of the product d2 obtained in the embodiment is 0.074-5 mm, the particle size of the product d1 is 5-19 mm, the particle size of the product b2 is 19-37.5 mm, and the particle size of the product d3 is less than 0.074 mm.
Example two:
the simplified machine-made sandstone production process is carried out according to the following steps:
the method comprises the following steps: grinding and shaping:
mixing ore and water, and passing through an autogenous mill to obtain a mixture a; the granularity of the mixture a is less than or equal to 60 mm; the mass ratio of the ore to the water is 1: 0.78;
step two: a first screening process:
screening the mixture a obtained in the step one by using a screening device to obtain a product b1, a product b2 and a product b 3;
the particle size of the product b1 in the second step is more than that of the product b2 is more than that of the product b 3;
wherein the screening equipment is a circular vibrating screen; the device is provided with a double-layer screen, the aperture of the upper layer screen is 31.5mm, and the aperture of the lower layer screen is 9.5 mm;
step three: a crushing procedure:
crushing the product b1 obtained in the step two by using a jaw crusher to obtain a product c; the particle size of the product c is less than or equal to 45mm
Step four: and (3) a circulating process:
returning the product c obtained in the step three to the step two, and performing a screening process to obtain a product b2 and a product b 3; the particle size of the product b2 is more than that of the product b 3;
step five: a second screening process:
mixing the product b3 obtained in the step two and the product b3 obtained in the step four by using a screening device, and then carrying out secondary screening to obtain a product d1, a product d2 and a product d 3;
wherein the screening equipment is a circular vibrating screen; the device is provided with a double-layer screen, the aperture of the upper layer screen is 5mm, and the aperture of the lower layer screen is 0.074 mm;
the particle size of the product d1 > the particle size of the product d2 > the particle size of the product d3 in step five.
The particle size of the product d2 obtained in the embodiment is 0.074-5 mm, the particle size of the product d1 is 5-9.5 mm, the particle size of the product b2 is 9.5-31.5 mm, and the particle size of the product d3 is less than 0.074 mm.
Example three:
the simplified machine-made sandstone production process is carried out according to the following steps:
the method comprises the following steps: grinding and shaping:
mixing the ore and water, and passing through a semi-autogenous mill to obtain a mixture a; the granularity of the mixture a is less than or equal to 60 mm; the mass ratio of the ore to the water is 1: 0.95;
step two: a first screening process:
screening the mixture a obtained in the step one by using a screening device to obtain a product b1, a product b2 and a product b 3;
the particle size of the product b1 in the second step is more than that of the product b2 is more than that of the product b 3;
wherein the screening device is a resonance screen; the device is provided with a double-layer screen, the aperture of the upper layer screen is 31.5mm, and the aperture of the lower layer screen is 9.5 mm;
step three: a crushing procedure:
crushing the product b1 obtained in the step two by using a jaw crusher to obtain a product c; the particle size of the product c is less than or equal to 45mm
Step four: and (3) a circulating process:
returning the product c obtained in the step three to the step two, and performing a screening process to obtain a product b2 and a product b 3; the particle size of the product b2 is more than that of the product b 3;
step five: a second screening process:
mixing the product b3 obtained in the step two and the product b3 obtained in the step four by using a screening device, and then carrying out secondary screening to obtain a product d1, a product d2 and a product d 3;
wherein the screening device is a resonance screen; the device is provided with a double-layer screen, the aperture of the upper layer screen is 5mm, and the aperture of the lower layer screen is 0.074 mm;
the particle size of the product d1 > the particle size of the product d2 > the particle size of the product d3 in step five.
The particle size of the product d2 obtained in the embodiment is 0.074-5 mm, the particle size of the product d1 is 5-9.5 mm, the particle size of the product b2 is 9.5-31.5 mm, and the particle size of the product d3 is less than 0.074 mm.
Example four:
the simplified machine-made sandstone production process is carried out according to the following steps:
the method comprises the following steps: grinding and shaping:
mixing ore and water, and passing through an autogenous mill to obtain a mixture a; the granularity of the mixture a is less than or equal to 60 mm; the mass ratio of the ore to the water is 1: 0.65;
step two: a first screening process:
screening the mixture a obtained in the step one by using a screening device to obtain a product b1, a product b2 and a product b 3;
the particle size of the product b1 in the second step is more than that of the product b2 is more than that of the product b 3;
wherein, the screening equipment is a probability screen; the device is provided with a double-layer screen, the aperture of the upper layer screen is 20mm, and the aperture of the lower layer screen is 10 mm;
step three: a crushing procedure:
crushing the product b1 obtained in the step two by using a jaw crusher to obtain a product c; the particle size of the product c is less than or equal to 45mm
Step four: and (3) a circulating process:
returning the product c obtained in the step three to the step two, and performing a screening process to obtain a product b2 and a product b 3; the particle size of the product b2 is more than that of the product b 3;
step five: a second screening process:
mixing the product b3 obtained in the step two and the product b3 obtained in the step four by using a screening device, and then carrying out secondary screening to obtain a product d1, a product d2 and a product d 3;
wherein, the screening equipment is a probability screen; the device is provided with a double-layer screen, the aperture of the upper layer screen is 4mm, and the aperture of the lower layer screen is 0.074 mm;
the particle size of the product d1 > the particle size of the product d2 > the particle size of the product d3 in step five.
The granularity of the product d2 obtained in the embodiment is 0.074-4 mm, the granularity of the product d1 is 4-10 mm, the granularity of the product b2 is 10-20 mm, and the granularity of the product d3 is less than 0.074 mm.
The process flow of the embodiment is short, only one crushing process is needed, and 1-2 times of crushing is reduced compared with the traditional process; the used equipment is less, and the quantity of the equipment is reduced by more than 30% compared with the traditional flow; the labor cost is solved, and the maintenance personnel can be reduced by more than 40%; compared with the traditional process, the method can reduce dust and is more environment-friendly. The process of this example was used to prepare machine-made sand.
Claims (9)
1. A simplified machine-made sandstone production process is characterized by comprising the following steps:
the method comprises the following steps: grinding and shaping:
mixing the ore and water, and passing through a stone breaking and shaping machine to obtain a mixture a;
step two: a first screening process:
screening the mixture a obtained in the step one by using a screening device to obtain a product b1, a product b2 and a product b 3;
the particle size of the product b1 in the second step is more than that of the product b2 is more than that of the product b 3;
step three: a crushing procedure:
crushing the product b1 obtained in the step two by a crusher to obtain a product c;
step four: and (3) a circulating process:
returning the product c obtained in the step three to the step two, and performing a screening process to obtain a product b2 and a product b 3; the particle size of the product b2 is more than that of the product b 3;
step five: a second screening process:
mixing the product b3 obtained in the step two and the product b3 obtained in the step four by using a screening device, and then carrying out secondary screening to obtain a product d1, a product d2 and a product d 3;
the particle size of the product d1 in the step five is more than that of the product d2 is more than that of the product d 3;
in the step one, the grinding and shaping machine is selected from one or two of a semi-autogenous mill and an autogenous mill.
2. The process for producing the simplified machine-made sandstone, according to claim 1, wherein the mass ratio of the ore to the water in the first step is 1 (0.65-0.95).
3. The process according to claim 1, wherein the particle size of the mixture a in the first step is not more than 150 mm.
4. The process of claim 1, wherein the screening equipment in step two is selected from one or two of a linear screen, a circular vibrating screen, a resonance screen and a probability screen.
5. The process of claim 4, wherein the screening device in step two is provided with a double-layer screen, the aperture of the upper layer screen is 20 mm-90 mm, the aperture of the lower layer screen is 5 mm-75 mm, and the aperture of the upper layer screen is larger than that of the lower layer screen.
6. The process of claim 1, wherein the three-step crusher is selected from the group consisting of gyratory crushers, jaw crushers, hammer crushers, and impact crushers.
7. The process of claim 1, wherein the particle size of the product c is less than or equal to 100 mm.
8. The process of claim 1, wherein in step five the screening device is one or two of a linear screen, a circular vibrating screen, a resonance screen and a probability screen.
9. The process of claim 8, wherein in step five the screening device is provided with a double screen; the aperture of the upper-layer screen mesh is 0.5-50 mm; the aperture of the lower layer screen is 0.03-37.5 mm, and the aperture of the upper layer screen is larger than that of the lower layer screen.
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| CN111135930A (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 sand stone crushing, shaping and screening production process |
| CN111135933A (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 sand and stone secondary crushing and secondary screening circulating production process |
| 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 |
| CN111135935A (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 sand stone shaping, screening and crushing production process |
| CN111135929A (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 sand stone shaping and screening production process |
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| JP5264846B2 (en) * | 2010-09-06 | 2013-08-14 | 株式会社古賀建設 | Crushed stone and crushed sand production plant and method |
| US8789773B2 (en) * | 2011-11-01 | 2014-07-29 | Crown Iron Works Company | Recycling process for discarded roof shingles |
| DE102015006152B4 (en) * | 2015-05-12 | 2018-06-07 | Mueg Mitteldeutsche Umwelt Und Entsorgung Gmbh | Process for the preparation and reuse of foundry sands |
| CN205925925U (en) * | 2016-06-15 | 2017-02-08 | 张荣斌 | Machine -made sand production system |
| CN106984416A (en) * | 2017-05-25 | 2017-07-28 | 四川晶天地新材料科技有限公司 | A kind of quartz sand processing technology |
| 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 |
| CN207357319U (en) * | 2017-08-01 | 2018-05-15 | 辽宁煜梽新型建材有限公司 | A kind of sandstone process units |
| CN208786623U (en) * | 2018-03-23 | 2019-04-26 | 广西友信矿业有限公司 | A kind of efficient ore crushing system |
| CN109351446A (en) * | 2018-09-04 | 2019-02-19 | 徐州金盟新型建材有限公司 | A kind of Machine-made Sand production technology |
| CN109569837B (en) * | 2018-10-30 | 2020-12-11 | 金川集团股份有限公司 | Crushing and grinding process for treating nickel-copper sulfide ore |
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