CN111940064A - Processing technology of high-quality aggregate - Google Patents
Processing technology of high-quality aggregate Download PDFInfo
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- CN111940064A CN111940064A CN202010721093.2A CN202010721093A CN111940064A CN 111940064 A CN111940064 A CN 111940064A CN 202010721093 A CN202010721093 A CN 202010721093A CN 111940064 A CN111940064 A CN 111940064A
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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
- B02C13/00—Disintegrating by mills having rotary beater elements ; Hammer mills
- B02C13/26—Details
- B02C13/282—Shape or inner surface of mill-housings
- B02C13/284—Built-in screens
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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
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B1/00—Sieving, screening, sifting, or sorting solid materials using networks, gratings, grids, or the like
- B07B1/28—Moving screens not otherwise provided for, e.g. swinging, reciprocating, rocking, tilting or wobbling screens
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Disintegrating Or Milling (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention relates to the technical field of processing of high-quality aggregates, in particular to a processing technology of high-quality aggregates, which comprises the following specific steps: s1, mine raw materials are conveyed into a ZSW bar feeder through a mine conveyor, the conveyed mine raw materials are fed into coarse crushing equipment through the ZSW bar feeder, a full-impact crusher is adopted in the whole production process, the materials are shaped in each section of crushing process, the full process realizes shaping while crushing, and the principle of 'multi-screen and less crushing' is followed, the materials are firstly screened after coarse crushing and medium crushing, classification operation is carried out, meanwhile, the aggregates are further reinforced and shaped before finished products, the excellent aggregate particle type is ensured, and finally, the high-quality aggregates are manufactured by adjusting the proportion of all components of finished aggregates of 0-30mm according to the client condition and further solving the problem that the content of needles, flaky particles and irregular particles exceeds the standard.
Description
Technical Field
The invention relates to the technical field of processing of high-quality aggregates, in particular to a processing technology of high-quality aggregates.
Background
Currently, the quality of aggregate severely restricts and affects the technical effect and engineering quality of concrete, and the industry increasingly realizes that the technical upgrading of the sandstone industry is an important driving force for the concrete to step into a new normal state and realize the reform of a supply side. In order to realize the upgrading of the product quality of concrete aggregate, a new sandstone aggregate technical system suitable for modern concrete needs to be established, and according to the requirements of high-performance concrete on adopting high-quality aggregate in technical guidelines for application of high-performance concrete and acceptance standards for high-performance concrete, the requirements of indexes such as aggregate grain size distribution and the like are particularly important, and the problem that the content of needle-shaped, flaky and irregular particles in the aggregate exceeds the standard is urgently solved by adopting special shaping equipment.
In conclusion, the invention solves the existing problems by designing a processing technology of high-quality aggregate.
Disclosure of Invention
The invention aims to provide a processing technology of high-quality aggregate to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
a processing technology of high-quality aggregate comprises the following specific steps:
s1, conveying the mine raw materials into a ZSW bar feeder through a mine conveyor, feeding the large sieved materials into coarse crushing equipment through the ZSW bar feeder, conveying the materials below the screen of the bar feeder into a desliming screen to remove the materials with soil, and feeding the materials and the crushed materials into a screen together after the coarse crushing equipment is crushed, namely, primary screening;
s2, directly feeding the materials subjected to the first screening into a second screen, respectively feeding the rest materials subjected to the second screening into middle crushing equipment and fine crushing equipment for crushing, and then feeding the crushed materials into the second screen for screening, namely the second screening;
s3, distributing the materials after the second screening according to the conditions of finished products by the proportion adjusting device, directly feeding part of the materials into the third screen according to the sizes of the materials, shaping the part of the materials by the shaping device, feeding the part of the materials into the third screen, returning the part of the materials to the fine crushing device for continuous crushing, feeding the crushed parts of the materials into the second screen for screening, distributing the materials after the screening by the proportion adjusting device according to the conditions of the finished products, directly feeding the part of the materials into the third screen according to the sizes of the materials, shaping the part of the materials by the shaping device, feeding the shaped materials into the third screen, returning the part of the materials to the fine crushing device for continuous crushing, and repeating;
and S4, obtaining the material screened out for the third time as a finished product.
Preferably, the first sieve in the S1, the second sieve in the S2 and the third sieve in the S3 are all vibrating sieves, the diameter of the sieve hole of the first sieve in the S1 is 30mm, and the diameter of the sieve hole of the second sieve in the S2 and the diameter of the sieve hole of the third sieve in the S3 are all 5 mm.
Preferably, the coarse crushing device in the S1 adopts a PFVP single-stage impact crusher, the particle diameter crushed by the coarse crushing device is less than or equal to 100mm, the crushing device in the S2 and the fine crushing device both adopt a PF impact crusher, the particle diameter crushed by the medium crushing device is less than or equal to 30mm, and the particle diameter crushed by the fine crushing device is less than or equal to 5 mm.
Preferably, the shaping device in S3 adopts an impact type sand making machine, and the diameter of the shaped particles is less than or equal to 5 mm.
Preferably, the proportion adjusting device in S3 adopts a secondary mining vibrating screen, and the screen hole diameters of the vibrating screen are respectively less than or equal to 30mm and less than or equal to 5 mm.
Preferably, the S2 is that the material with the diameter of-30 mm after the first screening directly enters a second screen, the materials with the diameter larger than 100mm and the diameter of 30-100mm respectively enter a middle crushing device and a fine crushing device for crushing, and then enter the second screen for screening, namely the second screening.
Preferably, in the step S3, after the second screening, the material is subjected to material distribution by the proportion adjusting device according to the condition of the finished product, the material of 0 to 5mm directly enters the third screen, part of the material of 5 to 30mm enters the shaping device for shaping, then enters the third screen, the material of more than 30mm and part of the material of 5 to 30mm returns to the fine crushing device for continuous crushing, the crushed material enters the second screen for screening, the screened material is subjected to material distribution by the proportion adjusting device according to the condition of the finished product, the material of 0 to 5mm directly enters the third screen, part of the material of 5 to 30mm enters the shaping device for shaping, then enters the third screen, and the material of more than 30mm and part of the material of 5 to 30mm returns to the fine crushing device for continuous crushing, and the cycle.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, a full-impact crusher is adopted to crush all the materials in the production process, the materials are shaped in each section of crushing process, the shaping is realized while crushing in the whole process, the principle of 'multi-screen and less-crushing' is followed, the materials are firstly screened and classified after coarse crushing and medium crushing, meanwhile, the aggregates are further reinforced and shaped before finished products, the excellent particle type of the aggregates is ensured, and finally, the high-quality aggregates are manufactured by regulating the proportion of each component of the finished aggregates of 0-30mm according to the client condition by combining an intelligent aggregate proportion regulation technology, so that the problem that the content of needles, flaky particles and irregular particles in the aggregates exceeds the standard is solved.
Drawings
FIG. 1 is a schematic view of the process of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by a person of ordinary skill in the art without creative efforts based on the embodiments of the present invention belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution:
a processing technology of high-quality aggregate comprises the following specific steps:
s1, conveying the mine raw materials into a ZSW bar feeder through a mine conveyor, feeding the large sieved materials into coarse crushing equipment through the ZSW bar feeder, conveying the materials below the screen of the bar feeder into a desliming screen to remove the materials with soil, and feeding the materials and the crushed materials into a screen together after the coarse crushing equipment is crushed, namely, primary screening;
s2, directly feeding the materials subjected to the first screening into a second screen, respectively feeding the rest materials subjected to the second screening into middle crushing equipment and fine crushing equipment for crushing, and then feeding the crushed materials into the second screen for screening, namely the second screening;
s3, distributing the materials after the second screening according to the conditions of finished products by the proportion adjusting device, directly feeding part of the materials into the third screen according to the sizes of the materials, shaping the part of the materials by the shaping device, feeding the part of the materials into the third screen, returning the part of the materials to the fine crushing device for continuous crushing, feeding the crushed parts of the materials into the second screen for screening, distributing the materials after the screening by the proportion adjusting device according to the conditions of the finished products, directly feeding the part of the materials into the third screen according to the sizes of the materials, shaping the part of the materials by the shaping device, feeding the shaped materials into the third screen, returning the part of the materials to the fine crushing device for continuous crushing, and repeating;
and S4, obtaining the material screened out for the third time as a finished product.
The specific embodiment is as follows:
as shown in fig. 1, the first screen in S1, the second screen in S2 and the third screen in S3 are all vibrating screens, the diameter of the screen hole of the first screen in S1 is 30mm, and the diameter of the screen hole of the second screen in S2 and the diameter of the screen hole of the third screen in S3 are both 5 mm; in the S1, a PFVP single-section impact crusher is adopted as coarse crushing equipment, the diameter of particles crushed by the coarse crushing equipment is less than or equal to 100mm, in the S2, a PF impact crusher is adopted as medium crushing equipment and fine crushing equipment, the diameter of particles crushed by the medium crushing equipment is less than or equal to 30mm, and the diameter of particles crushed by the fine crushing equipment is less than or equal to 5 mm; s3, shaping equipment adopts an impact type sand making forming machine, and the diameter of the shaped particles is less than or equal to 5 mm; the proportion adjusting device in the S3 adopts a secondary mining vibrating screen, and the screen hole diameters of the vibrating screen are respectively less than or equal to 30mm and less than or equal to 5 mm.
Step 1, conveying mine raw materials into a ZSW bar feeder through a mine conveyor, feeding large sieved materials into coarse crushing equipment through the ZSW bar feeder, conveying materials below a screen of the bar feeder into a desliming screen to remove materials with soil, and feeding the materials and the crushed materials into a screen together after the materials are crushed by the coarse crushing equipment, namely, primary screening;
step 2, directly feeding the materials with the thickness of-30 mm after the first screening into a second screen, respectively feeding the materials with the thickness of more than 100mm and 30-100mm into a middle crushing device and a fine crushing device for crushing, and then feeding the crushed materials into the second screen for screening, namely the second screening;
step 3, through S3, distributing the materials after the second screening through a proportion adjusting device according to the condition of a finished product, directly feeding the materials of 0-5mm into a third screen, feeding part of the materials of 5-30mm into a shaping device for shaping, then feeding the materials into the third screen, feeding the materials of more than 30mm and part of the materials of 5-30mm back to a fine crushing device for continuous crushing, feeding the materials after crushing, directly feeding the materials into a second screen again for screening, distributing the materials through the proportion adjusting device according to the condition of the finished product, directly feeding the materials of 0-5mm into the third screen, feeding part of the materials of 5-30mm into the shaping device for shaping, then feeding the materials into the third screen, feeding the materials of more than 30mm and part of the materials of 5-30mm back to the fine crushing;
and 4, screening the material for the third time to obtain a finished product.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A processing technology of high-quality aggregate comprises the following specific steps:
s1, conveying the mine raw materials into a ZSW bar feeder through a mine conveyor, feeding the large sieved materials into coarse crushing equipment through the ZSW bar feeder, conveying the materials below the screen of the bar feeder into a desliming screen to remove the materials with soil, and feeding the materials and the crushed materials into a screen together after the coarse crushing equipment is crushed, namely, primary screening;
s2, directly feeding the materials subjected to the first screening into a second screen, respectively feeding the rest materials subjected to the second screening into middle crushing equipment and fine crushing equipment for crushing, and then feeding the crushed materials into the second screen for screening, namely the second screening;
s3, distributing the materials after the second screening according to the conditions of finished products by the proportion adjusting device, directly feeding part of the materials into the third screen according to the sizes of the materials, shaping the part of the materials by the shaping device, feeding the part of the materials into the third screen, returning the part of the materials to the fine crushing device for continuous crushing, feeding the crushed parts of the materials into the second screen for screening, distributing the materials after the screening by the proportion adjusting device according to the conditions of the finished products, directly feeding the part of the materials into the third screen according to the sizes of the materials, shaping the part of the materials by the shaping device, feeding the shaped materials into the third screen, returning the part of the materials to the fine crushing device for continuous crushing, and repeating;
and S4, obtaining the material screened out for the third time as a finished product.
2. The process for processing a high-quality aggregate according to claim 1, wherein: the first screen in the S1, the second screen in the S2 and the third screen in the S3 are all vibrating screens, the diameter of the screen hole of the first screen in the S1 is 30mm, and the diameter of the screen hole of the second screen in the S2 and the diameter of the screen hole of the third screen in the S3 are all 5 mm.
3. The process for processing a high-quality aggregate according to claim 1, wherein: the coarse crushing equipment in the S1 adopts a PFVP single-section impact crusher, the particle diameter crushed by the coarse crushing equipment is less than or equal to 100mm, the middle crushing equipment and the fine crushing equipment in the S2 both adopt a PF impact crusher, the particle diameter crushed by the middle crushing equipment is less than or equal to 30mm, and the particle diameter crushed by the fine crushing equipment is less than or equal to 5 mm.
4. The process for processing a high-quality aggregate according to claim 1, wherein: and in the S3, the shaping equipment adopts an impact type sand making forming machine, and the diameter of the shaped particles is less than or equal to 5 mm.
5. The process for processing a high-quality aggregate according to claim 1, wherein: and the proportion adjusting device in the S3 adopts a secondary mining vibrating screen, and the screen hole diameters of the vibrating screen are respectively less than or equal to 30mm and less than or equal to 5 mm.
6. The process for processing a high-quality aggregate according to claim 1, wherein: and S2, directly feeding the materials with the thickness of-30 mm after the first screening into a second screen, respectively feeding the materials with the thickness of more than 100mm and 30-100mm into a middle crushing device and a fine crushing device for crushing, and then feeding the crushed materials into the second screen for screening, namely the second screening.
7. The process for processing a high-quality aggregate according to claim 1, wherein: and S3, distributing the materials after the second screening by the proportion adjusting device according to the condition of the finished product, directly feeding the materials of 0-5mm into the third screen, shaping part of the materials of 5-30mm by the shaping device, feeding the shaped materials into the third screen, returning the materials of more than 30mm and part of the materials of 5-30mm to the fine crushing device for continuous crushing, feeding the crushed materials into the second screen for screening, distributing the screened materials by the proportion adjusting device according to the condition of the finished product, directly feeding the materials of 0-5mm into the third screen, shaping part of the materials of 5-30mm by the shaping device, feeding the materials into the third screen, returning the materials of more than 30mm and part of the materials of 5-30mm to the fine crushing device for continuous crushing, and repeating the cycle to obtain the third.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010721093.2A CN111940064A (en) | 2020-07-23 | 2020-07-23 | Processing technology of high-quality aggregate |
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| CN202010721093.2A CN111940064A (en) | 2020-07-23 | 2020-07-23 | Processing technology of high-quality aggregate |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112536132A (en) * | 2020-11-18 | 2021-03-23 | 中国水利水电第九工程局有限公司 | Machine-made sand shell breaking and core retaining desliming system and desliming process thereof |
| CN112958254A (en) * | 2021-02-23 | 2021-06-15 | 山东博研粉体技术装备有限公司 | Aggregate production system |
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| CN112536132A (en) * | 2020-11-18 | 2021-03-23 | 中国水利水电第九工程局有限公司 | Machine-made sand shell breaking and core retaining desliming system and desliming process thereof |
| CN112958254A (en) * | 2021-02-23 | 2021-06-15 | 山东博研粉体技术装备有限公司 | Aggregate production system |
| CN112958254B (en) * | 2021-02-23 | 2023-02-24 | 山东博研粉体技术装备有限公司 | Aggregate production system and production method |
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Application publication date: 20201117 |