CN109201293B - Method for improving discharging efficiency of gypsum crusher - Google Patents
Method for improving discharging efficiency of gypsum crusher Download PDFInfo
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- CN109201293B CN109201293B CN201811045785.9A CN201811045785A CN109201293B CN 109201293 B CN109201293 B CN 109201293B CN 201811045785 A CN201811045785 A CN 201811045785A CN 109201293 B CN109201293 B CN 109201293B
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- gypsum
- raw material
- auxiliary agent
- crusher
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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
-
- 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
- B02C23/02—Feeding devices
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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
- B02C23/06—Selection or use of additives to aid disintegrating
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Processing Of Solid Wastes (AREA)
- Crushing And Grinding (AREA)
Abstract
The invention discloses a method for improving the discharging efficiency of a gypsum crusher, which comprises the following steps of equipment pretreatment and raw material fluidization treatment, wherein the equipment pretreatment comprises the following steps: before feeding, coating a feed inlet and a discharge outlet of a gypsum crusher with an auxiliary agent A, wherein the auxiliary agent A is prepared by dissolving graphene oxide in a mixed solution of ethanol and dimethylacetamide; the raw material fluidization treatment comprises the following steps: 1) adding desulfurized gypsum into the raw material gypsum, and fully stirring and homogenizing to obtain a homogenized raw material; 2) and mixing the homogenized raw material with an auxiliary agent B, and mixing the raw material and the auxiliary agent B by using a double-roller mixer to finish the fluidization treatment of the raw material, wherein the auxiliary agent B is prepared from fly ash glass microspheres, hectorite clay, kaolin, methyl cellulose ether, sepiolite and an organic solvent. The method can not only finish the crushing of large gypsum blocks, but also obtain the finished product of gypsum powder with small granularity, simultaneously improves the labor intensity and the working environment, and further improves the discharging efficiency of the crusher.
Description
Technical Field
The invention belongs to the technical field of gypsum processing, and particularly relates to a method for improving the discharging efficiency of a gypsum crusher.
Background
The gypsum is monoclinic mineral and is CaSO4·2H2The natural ore with O as the main component has rich reserves in China. Gypsum is a widely used industrial and building material and can be used in cement flocculants, gypsum building products, model making, medical food additives, sulfuric acid production, paper fillers, paint fillers and the like. The natural gypsum can not be directly applied, and is generally processed into gypsum powder for utilization after being crushed by a crusher.
At present, a gypsum crusher faces a plurality of problems in the process of crushing gypsum, for example, desulfurized gypsum brings a plurality of difficulties to feeding, discharging and using due to higher adsorbed water content, high humidity and strong viscosity. To solve this problem, the "efficiency of crushing limestone in cement plants by mineral processing equipment" teaches "that desulfurization gypsum is incorporated into large blocks of gypsum while the large blocks are poured into the crushing port of a crusher". The method can be used for crushing large gypsum blocks, and can solve the problem that due to large gypsum particle size, the yield of a grinder is affected even through a scraper-trough conveyer is blocked, more importantly, the problem that the feeding is difficult in the gypsum crushing process is solved, the problem of unsmooth discharging still exists, and the discharging efficiency in the gypsum crushing process is not reported at present.
Disclosure of Invention
The invention aims to: the method for improving the discharging efficiency of the gypsum crusher solves the problem of unsmooth discharging of the gypsum crusher by adopting the technical means of equipment pretreatment and raw material fluidization treatment.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for improving the discharging efficiency of a gypsum crusher comprises equipment pretreatment and raw material fluidization treatment, and is characterized in that:
the pretreatment of the equipment comprises the following steps: before feeding, coating a feed inlet and a discharge outlet of a gypsum crusher with an auxiliary agent A, wherein the auxiliary agent A is prepared by dissolving graphene oxide in a mixed solution of ethanol and dimethylacetamide, and the dissolving amount of the graphene oxide is 1-5g/1000 ml;
the raw material fluidization treatment comprises the following steps:
1) adding a proper amount of desulfurized gypsum into the raw material gypsum, and fully stirring and homogenizing to obtain a homogenized raw material;
2) mixing the homogenized raw material and an auxiliary agent B according to the weight ratio of 100:0.05-0.1, fully mixing for 5-10 minutes by a double-roller mixer, and directly pouring into a crusher to finish the fluidization treatment of the raw material, wherein the auxiliary agent B is prepared from the following raw materials in parts by weight:
5-10 parts of fly ash glass microspheres, 2.5-5 parts of hectorite clay, 1-1.5 parts of kaolin, 2-3 parts of methyl cellulose ether, 1-1.2 parts of sepiolite and 100 parts of organic solvent.
Preferably, the assistant B is prepared from the following raw materials in parts by weight:
5-10 parts of fly ash glass microspheres, 2.5-5 parts of hectorite clay, 1-1.5 parts of kaolin, 2-3 parts of carboxymethyl starch, 0.5-1 part of guar gum, 1-1.2 parts of sepiolite and 100 parts of organic solvent.
Preferably, the organic solvent is prepared by mixing industrial ethanol and glycerol in a volume ratio of 100: 5-10.
Preferably, the organic solvent is prepared by mixing industrial ethanol, methanol and glycerol according to the volume ratio of 70:25: 5.
Compared with the prior art, the invention has the beneficial effects that:
1) according to the invention, the auxiliary agent A is adopted to coat the feed inlet and the discharge outlet of the gypsum crusher, so that a layer of 'slip-assisting film' can be formed on the inner walls of the feed inlet and the discharge outlet, the film can obviously reduce interfacial force between gypsum and the inner walls, thereby accelerating feeding and discharging, improving discharging efficiency, and the film has a water-proof effect, prevents water from corroding inner wall materials of the crusher, and ensures the service life of the crusher;
2) according to the invention, by adding the desulfurized gypsum into the raw material gypsum, not only can the large gypsum be crushed, but also the gypsum powder finished product with small granularity can be obtained through crushing, and meanwhile, the labor intensity and the working environment are improved, and the quality of the gypsum finished product is further improved;
3) according to the invention, the auxiliary agent B is added into the homogenized raw material, so that the viscosity of the crushed material is reduced, and simultaneously, the performance of the gypsum powder is further improved, so that the gypsum powder has higher physicochemical properties in various applications, and particularly, the hydrophobicity of the gypsum powder can be greatly improved by the compound application of the fly ash glass microspheres and the hectorite clay, thereby achieving the purpose of improving the discharging efficiency.
Detailed Description
In order that the objects, aspects and advantages of the present invention will become more apparent to those skilled in the art, the present invention will be further described in detail with reference to specific embodiments. It should be understood that the examples are only for illustrating the present invention and are not to be construed as limiting the present invention.
Example 1
A method of increasing the discharge efficiency of a gypsum crusher comprising equipment pretreatment and feed fluidization, wherein:
the pretreatment of the equipment comprises the following steps: before feeding natural gypsum blocks, coating the inner walls of a hopper at a feed inlet and a discharge outlet of a gypsum crusher with an auxiliary agent A, wherein the auxiliary agent A is prepared by dissolving graphene oxide in a mixed solution of ethanol and dimethylacetamide, and the dissolving amount of the graphene oxide is 1g/1000 ml;
the raw material fluidization treatment comprises the following steps:
1) adding 5 percent of desulfurized gypsum by weight into the raw material gypsum, and fully stirring and homogenizing to obtain a homogenized raw material;
2) mixing the homogenized raw material and an auxiliary agent B according to the weight ratio of 100:0.05, fully mixing for 5 minutes by a double-roller mixer, and directly pouring into a crusher to finish the fluidization treatment of the raw material, wherein the auxiliary agent B is prepared from the following raw materials in parts by weight:
5 parts of fly ash glass microspheres, 2.5 parts of hectorite clay, 1 part of kaolin, 2 parts of methyl cellulose ether, 1 part of sepiolite and 100 parts of organic solvent, wherein the organic solvent is prepared by mixing industrial ethanol and glycerol according to the volume ratio of 100: 5-10.
Example 2
A method of increasing the discharge efficiency of a gypsum crusher comprising equipment pretreatment and feed fluidization, wherein:
the pretreatment of the equipment comprises the following steps: before feeding natural gypsum blocks, coating the inner walls of a hopper at a feeding port and a discharge port of a gypsum crusher with an auxiliary agent A, wherein the auxiliary agent A is prepared by dissolving graphene oxide in a mixed solution of ethanol and dimethylacetamide, and the dissolving amount of the graphene oxide is 5g/1000 ml;
the raw material fluidization treatment comprises the following steps:
1) adding desulfurized gypsum which accounts for 10 percent of the weight of the raw material gypsum into the raw material gypsum, and fully stirring and homogenizing to obtain a homogenized raw material;
2) mixing the homogenized raw material and an auxiliary agent B according to the weight ratio of 100:0.1, fully mixing for 10 minutes by a double-roller mixer, and directly pouring into a crusher to finish the fluidization treatment of the raw material, wherein the auxiliary agent B is prepared from the following raw materials in parts by weight:
10 parts of fly ash glass microspheres, 5 parts of hectorite clay, 1.5 parts of kaolin, 3 parts of methyl cellulose ether, 1.2 parts of sepiolite and 100 parts of organic solvent, wherein the organic solvent is prepared by mixing industrial ethanol and glycerol according to the volume ratio of 100: 10.
Example 3
Under the same conditions of other process steps, the components of the auxiliary agent B can also be as follows during the fluidization treatment of the raw materials: 5 parts of fly ash glass microspheres, 2.5 parts of hectorite clay, 1 part of kaolin, 2 parts of carboxymethyl starch, 0.5 part of guar gum, 1 part of sepiolite and 100 parts of organic solvent, wherein the organic solvent can be prepared by mixing industrial ethanol and glycerol according to the volume ratio of 100:5, or can be prepared by mixing industrial ethanol, methanol and glycerol according to the volume ratio of 70:25: 5.
Example 4
Under the same conditions of other process steps, the components of the auxiliary agent B can also be as follows during the fluidization treatment of the raw materials: 10 parts of fly ash glass microspheres, 5 parts of hectorite clay, 1.5 parts of kaolin, 3 parts of carboxymethyl starch, 1 part of guar gum, 1.2 parts of sepiolite and 100 parts of organic solvent, wherein the organic solvent can be prepared by mixing industrial ethanol and glycerol according to the volume ratio of 100:10, or can be prepared by mixing industrial ethanol, methanol and glycerol according to the volume ratio of 70:25: 5.
Based on the above embodiment, the discharge efficiency is counted through experiments, and the results show that: the discharge efficiency was improved in the tests of examples 1 to 4. Particularly, the discharging efficiency of the embodiments 3 and 4 is greatly improved, which shows that the method of the invention can improve the discharging efficiency of the gypsum crusher and solve the problem of poor discharging efficiency of gypsum.
Claims (4)
1. A method for improving the discharging efficiency of a gypsum crusher comprises equipment pretreatment and raw material fluidization treatment, and is characterized in that:
the pretreatment of the equipment comprises the following steps: before feeding, coating a feed inlet and a discharge outlet of a gypsum crusher with an auxiliary agent A, wherein the auxiliary agent A is prepared by dissolving graphene oxide in a mixed solution of ethanol and dimethylacetamide, and the dissolving amount of the graphene oxide is 1-5g/1000 ml;
the raw material fluidization treatment comprises the following steps:
1) adding 5-10% of desulfurized gypsum by weight into the raw material gypsum, and fully stirring and homogenizing to obtain a homogenized raw material;
2) mixing the homogenized raw material and an auxiliary agent B according to the weight ratio of 100:0.05-0.1, fully mixing for 5-10 minutes by a double-roller mixer, and directly pouring into a crusher to finish the fluidization treatment of the raw material, wherein the auxiliary agent B is prepared from the following raw materials in parts by weight:
5-10 parts of fly ash glass microspheres, 2.5-5 parts of hectorite clay, 1-1.5 parts of kaolin, 2-3 parts of methyl cellulose ether, 1-1.2 parts of sepiolite and 100 parts of organic solvent.
2. The method of claim 1, wherein the discharging efficiency of the gypsum crusher is increased by:
the auxiliary agent B is prepared from the following raw materials in parts by weight:
5-10 parts of fly ash glass microspheres, 2.5-5 parts of hectorite clay, 1-1.5 parts of kaolin, 2-3 parts of carboxymethyl starch, 0.5-1 part of guar gum, 1-1.2 parts of sepiolite and 100 parts of organic solvent.
3. A method of increasing the discharge efficiency of a gypsum crusher as claimed in claim 1 or 2, characterized in that: the organic solvent is prepared by mixing industrial ethanol and glycerol according to the volume ratio of 100: 5-10.
4. A method of increasing the discharge efficiency of a gypsum crusher as claimed in claim 3, wherein: the organic solvent is prepared by mixing industrial ethanol, methanol and glycerol according to the volume ratio of 70:25: 5.
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| CN201811045785.9A CN109201293B (en) | 2018-09-07 | 2018-09-07 | Method for improving discharging efficiency of gypsum crusher |
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| CN201811045785.9A CN109201293B (en) | 2018-09-07 | 2018-09-07 | Method for improving discharging efficiency of gypsum crusher |
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| CN109201293B true CN109201293B (en) | 2020-12-01 |
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Citations (2)
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| CN102700864A (en) * | 2012-06-07 | 2012-10-03 | 江苏名和集团有限公司 | System for discharging desulfurized gypsum |
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| US8142856B2 (en) * | 2005-07-15 | 2012-03-27 | Dow Corning Corporation | Hydrophobing minerals and filler materials |
| CN200984527Y (en) * | 2006-12-15 | 2007-12-05 | 上海建设路桥机械设备有限公司 | Body of the desulfurized gypsum slag drying crusher |
| GB0809526D0 (en) * | 2008-05-27 | 2008-07-02 | Dow Corning | Gypsum materials |
| CN102241487A (en) * | 2011-03-29 | 2011-11-16 | 丁立峰 | Modified gypsum, preparation method and preparation system for the same |
| CN102320640A (en) * | 2011-08-17 | 2012-01-18 | 武汉工程大学 | Method for decomposing phosphogypsum through coupling reaction heat and vibration fluidizing |
| CN102398746A (en) * | 2011-11-04 | 2012-04-04 | 孟令洁 | Unloading system for storage of bulk solids with thick fluidity |
| CN102751460B (en) * | 2012-05-23 | 2014-08-13 | 杭州福膜新材料科技有限公司 | High-temperature-resisting composite isolation film and preparation method thereof |
| CN104529201A (en) * | 2014-12-09 | 2015-04-22 | 登封市科技企业孵化服务中心 | Gypsum homogenizing chute |
| CN105985140A (en) * | 2015-03-06 | 2016-10-05 | 于有海 | Graphene and ceramic composite film and preparation method thereof |
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| CN105327759A (en) * | 2015-10-14 | 2016-02-17 | 重庆市秋露石膏制品厂 | Gypsum crusher |
| CN106367710A (en) * | 2016-08-31 | 2017-02-01 | 中山大学惠州研究院 | Preparation method of abrasion-resistant coating of stainless steel base material |
| CN107311588A (en) * | 2017-07-04 | 2017-11-03 | 合肥市大卓电力有限责任公司 | A kind of environmentally friendly brushing gypsum and preparation method thereof |
| CN107353719B (en) * | 2017-08-01 | 2019-08-27 | 西北永新涂料有限公司 | Environment-friendly type building water paint containing modified graphene oxide and preparation method thereof |
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| CN201980616U (en) * | 2011-03-29 | 2011-09-21 | 河南丰博自动化有限公司 | Material blanking anti-blocking device |
| CN102700864A (en) * | 2012-06-07 | 2012-10-03 | 江苏名和集团有限公司 | System for discharging desulfurized gypsum |
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