CN110586295A - Fine-fraction material screening process method for dolomite ore - Google Patents
Fine-fraction material screening process method for dolomite ore Download PDFInfo
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- CN110586295A CN110586295A CN201910904937.4A CN201910904937A CN110586295A CN 110586295 A CN110586295 A CN 110586295A CN 201910904937 A CN201910904937 A CN 201910904937A CN 110586295 A CN110586295 A CN 110586295A
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- fine
- screening
- ore
- crushing
- sieve
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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
-
- 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
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a fine-grained material screening process method for dolomite ore, which is characterized by comprising the following steps of: (1) firstly, carrying out coarse crushing and intermediate crushing on the ores in the stope; (2) feeding the coarsely crushed and intermediately crushed ore into a fine crusher for fine crushing; (3) and screening the finely crushed ore through a GXFS2461 type efficient fine powder sieve, controlling the classification granularity at 3mm, conveying the material with the diameter smaller than 3mm below the sieve to a storage yard as a dolomite product by using a belt conveyor, returning the material with the diameter larger than 3mm above the sieve to the fine crusher through the belt conveyor, further finely crushing the material, and then conveying the material into the fine powder sieve for screening. The invention aims to improve the screening efficiency of fine-grained materials, adopts the high-efficiency fine powder screen, thoroughly solves the problem of screen pore blockage by optimizing the production process parameters of the high-efficiency fine powder screen, and improves the production efficiency.
Description
Technical Field
The invention belongs to the field of mineral processing in mining industry, and particularly relates to a fine-grained material screening process method for dolomite ore.
Background
Dolomite ore is the sintering main raw materials of ironmaking, its granularity requires below 3mm, fine fraction material is in screening production process, because the sieve mesh undersize, phenomenons such as sieve mesh jam, overflow sieve, paste sieve appear easily, cause screening efficiency low, cyclic load is too big, the product productivity can't go the scheduling problem, especially under the prerequisite that current production must satisfy the environmental protection requirement, for preventing that the dust is too big, the ore course of working all must spout proper amount of water operation, and then cause fine fraction material to glue the back and easily glue, block up the sieve mesh more easily, screening efficiency is lower. Therefore, a new fine material screening process for dolomite ore is needed.
Disclosure of Invention
Aiming at the problems that the screening efficiency is low, the cyclic load is overlarge, the production capacity of products cannot be increased and the like due to the fact that the phenomena of screen hole blockage, screen overflow, screen pasting and the like are easy to occur in the screening production process of the dolomite ore in the background technology, the invention provides a fine-grained material screening process method of the dolomite ore, aiming at improving the screening efficiency of the fine-grained material, adopting a high-efficiency fine screen, thoroughly solving the problem of screen hole blockage and improving the production efficiency by optimizing the production process parameters of the high-efficiency fine screen.
The technical scheme for solving the technical problem of the invention is as follows:
the invention relates to a fine-grained material screening process method for dolomite ore, which is characterized by comprising the following steps of:
(1) firstly, carrying out coarse crushing and intermediate crushing on the ores in the stope;
(2) feeding the coarsely crushed and intermediately crushed ore into a fine crusher for fine crushing;
(3) and screening the finely crushed ore through a GXFS2461 type efficient fine powder sieve, controlling the classification granularity at 3mm, conveying the material with the diameter smaller than 3mm below the sieve to a storage yard as a dolomite product by using a belt conveyor, returning the material with the diameter larger than 3mm above the sieve to the fine crusher through the belt conveyor, further finely crushing the material, and then conveying the material into the fine powder sieve for screening.
As a further improvement of the technical scheme of the invention, the ore treatment capacity of the fine crusher is controlled within the range of the screening treatment capacity of the GXFS2461 type high-efficiency fine powder screen.
The GXFS2461 type high-efficiency fine powder sieve adopted by the invention has the following characteristics: the vibration strength of the screen frame is low, and the special elastic screen surface for bearing materials is bent, so that the screen holes are continuously deformed, and the vibration strength of the screen surface is greatly increased, thereby effectively overcoming the phenomena of screen hole blockage and screen pasting, and remarkably improving the screening efficiency and the processing capacity; meanwhile, the screening feeding amount is controlled aiming at the overflowing phenomenon of the fine-grained materials in the screening production process, the treatment amount of the fine crusher in the previous screening process is controlled within the screening design treatment capacity range of the GXFS2461 series efficient fine powder screen, and the overflowing caused by the overlarge feeding amount of the fine-grained material screen is prevented.
Compared with the prior art, the implementation effect of the invention is as follows: after the sieve is used, the phenomena of sieve pore blockage, sieve overflow, sieve pasting and the like in the screening process of fine-grained materials are thoroughly solved, the screening efficiency is improved to 87.62 percent from 70 percent of a common sieve, the production efficiency is greatly improved, and the benefit of an enterprise can be increased by about 400 ten thousand yuan each year.
Drawings
The invention is further described with reference to the following figures and detailed description:
FIG. 1 is a flow chart of the production process of the present invention
Detailed Description
The invention relates to a fine-grained material screening process method for dolomite ore, which is characterized by comprising the following steps of:
(1) firstly, carrying out coarse crushing and intermediate crushing on the ores in the stope;
(2) feeding the coarsely crushed and intermediately crushed ore into a fine crusher for fine crushing;
(3) and screening the finely crushed ore by a GXFS2461 type efficient fine powder sieve produced by Tian Gong science and technology Limited company in Maanshan, controlling the classification granularity to be 3mm, conveying the material with the diameter smaller than 3mm below the sieve to a storage yard by using a belt conveyor as a dolomite product, returning the material with the diameter larger than 3mm on the sieve to the fine crusher by the belt conveyor for further fine crushing, and then conveying the material into the GXFS2461 type efficient fine powder sieve for sieving, thereby circulating.
In the fine-grained material screening process method for the dolomite ores, the ore treatment capacity of the fine crusher is required to be controlled within the screening treatment capacity range of the GXFS2461 type efficient fine powder screen, so that the problem of overflowing caused by overlarge feeding amount of the fine-grained material screen is solved.
The fine-grained dolomite ore material screening process method is well applied to certain Martin ores, thoroughly solves the problems of screen hole blockage, screen overflow, screen pasting and the like in the screening process of fine-grained dolomite ores after being used, improves the screening efficiency from 70% of a common screen to 87.62%, greatly improves the production efficiency, and can increase the benefit of an enterprise by about 400 ten thousand yuan each year.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention are also included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (2)
1. A fine-grained material screening process method for dolomite ore is characterized by comprising the following steps:
(1) firstly, carrying out coarse crushing and intermediate crushing on the ores in the stope;
(2) feeding the coarsely crushed and intermediately crushed ore into a fine crusher for fine crushing;
(3) and screening the finely crushed ore through a GXFS2461 type efficient fine powder sieve, controlling the classification granularity to be 3mm, conveying the material with the undersize diameter smaller than 3mm to a storage yard as a dolomite product by using a belt conveyor, returning the material with the oversize diameter larger than 3mm to the fine crusher through the belt conveyor, further finely crushing the material, and then conveying the material into the GXFS2461 type efficient fine powder sieve for screening.
2. The fine dolomite ore material screening process as claimed in claim 1, wherein the ore treatment capacity of the fine crusher is controlled within the screening capacity of GXFS2461 type high efficiency fine powder screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910904937.4A CN110586295A (en) | 2019-09-24 | 2019-09-24 | Fine-fraction material screening process method for dolomite ore |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910904937.4A CN110586295A (en) | 2019-09-24 | 2019-09-24 | Fine-fraction material screening process method for dolomite ore |
Publications (1)
| Publication Number | Publication Date |
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| CN110586295A true CN110586295A (en) | 2019-12-20 |
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Family Applications (1)
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| CN201910904937.4A Pending CN110586295A (en) | 2019-09-24 | 2019-09-24 | Fine-fraction material screening process method for dolomite ore |
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2019
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| CN201912986U (en) * | 2010-12-16 | 2011-08-03 | 上海建冶机器有限公司 | Automatic control stone production line |
| CN102179284A (en) * | 2011-01-26 | 2011-09-14 | 重钢西昌矿业有限公司 | Method for crushing iron ore |
| CN203235536U (en) * | 2013-05-09 | 2013-10-16 | 徐州众工精密模锻有限公司 | Integrated iron ore production device |
| CN103433108A (en) * | 2013-07-09 | 2013-12-11 | 王燕 | Drying-method sand making device and process |
| CN203448161U (en) * | 2013-09-06 | 2014-02-26 | 安徽新中远化工科技有限公司 | Crushing system |
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| CN105797829A (en) * | 2014-12-31 | 2016-07-27 | 哈尔滨爱坦科技有限公司 | Three-stage crushing method of crusher |
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Application publication date: 20191220 |
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