CN112191350A - Sepiolite ore temperature and pressure transient crushing method - Google Patents
Sepiolite ore temperature and pressure transient crushing method Download PDFInfo
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- CN112191350A CN112191350A CN202011001119.2A CN202011001119A CN112191350A CN 112191350 A CN112191350 A CN 112191350A CN 202011001119 A CN202011001119 A CN 202011001119A CN 112191350 A CN112191350 A CN 112191350A
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- 238000000034 method Methods 0.000 title claims abstract description 46
- 239000004113 Sepiolite Substances 0.000 title claims abstract description 33
- 229910052624 sepiolite Inorganic materials 0.000 title claims abstract description 33
- 235000019355 sepiolite Nutrition 0.000 title claims abstract description 33
- 230000001052 transient effect Effects 0.000 title claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 79
- 239000002245 particle Substances 0.000 claims abstract description 24
- 239000012467 final product Substances 0.000 claims abstract description 14
- 238000012216 screening Methods 0.000 claims abstract description 13
- 238000003756 stirring Methods 0.000 claims abstract description 11
- 230000008859 change Effects 0.000 claims abstract description 9
- 238000005406 washing Methods 0.000 claims abstract description 9
- 239000000843 powder Substances 0.000 claims abstract description 8
- 229910052500 inorganic mineral Inorganic materials 0.000 claims description 12
- 239000011707 mineral Substances 0.000 claims description 12
- 239000000047 product Substances 0.000 claims description 11
- 238000005054 agglomeration Methods 0.000 claims description 4
- 230000002776 aggregation Effects 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000006185 dispersion Substances 0.000 claims 1
- 238000007789 sealing Methods 0.000 claims 1
- 230000001960 triggered effect Effects 0.000 claims 1
- 230000008569 process Effects 0.000 abstract description 29
- 238000004519 manufacturing process Methods 0.000 abstract description 10
- 238000005299 abrasion Methods 0.000 abstract description 5
- 239000013078 crystal Substances 0.000 abstract description 5
- 238000000227 grinding Methods 0.000 abstract description 5
- 238000003825 pressing Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 238000005096 rolling process Methods 0.000 abstract description 3
- 238000010008 shearing Methods 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000007123 defense Effects 0.000 description 4
- 239000004576 sand Substances 0.000 description 3
- 239000002734 clay mineral Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000007873 sieving Methods 0.000 description 1
Images
Classifications
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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
- B02C19/00—Other disintegrating devices or methods
- B02C19/18—Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/18—Use of auxiliary physical effects, e.g. ultrasonics, irradiation, for disintegrating
- B02C19/186—Use of cold or heat for disintegrating
-
- 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
-
- 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
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize 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
- B02C23/16—Separating or sorting of material, associated with crushing or disintegrating with separator defining termination of crushing or disintegrating zone, e.g. screen denying egress of oversize material
- B02C2023/165—Screen denying egress of oversize material
Landscapes
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Disintegrating Or Milling (AREA)
Abstract
A sepiolite ore temperature and pressure transient crushing method mainly solves the technical problems of insufficient material crushing, poor crushing effect and the like in the prior art. The key points of the technical scheme are as follows: the method comprises the steps of primary crushing, ore washing, warm-pressing transient crushing and the like; wherein, the primary crushing adopts a spiral stirring mill to carry out closed-circuit crushing, and the temperature and pressure transient crushing also adopts a closed-circuit form; the production method of the screening closed-loop process flow for realizing ore crushing by adopting high-temperature and high-pressure instantaneous change not only ensures the narrow particle size range and high uniformity of the final product; the materials in the crushed ore final product are fully crushed in the device, mechanical abrasion and uneven ore crushing caused in the traditional mechanical crushing are reduced to the maximum extent, the damage to the particle morphology structure and the crystal characteristic caused by crushing of the ore powder through shearing stress under the traditional strong mechanical rolling and grinding is effectively reduced, the crushing is carried out through the tension and the pressure stress change of the ore in the temperature and pressure transient process, and the processing fineness and the sorting index of the crushed materials can be effectively improved.
Description
Technical Field
The invention relates to a mineral crushing process, in particular to a sepiolite ore temperature and pressure transient crushing method.
Background
Sepiolite is a hydrous magnesium silicate clay mineral and has wide application prospects in medical and defense industries, the crushing of sepiolite ore is an important process step in the production and application of the sepiolite ore, and different crushing equipment is adopted according to the particle size requirements of different products, and the steps of screening and the like are added. In order to meet the continuous improvement of the requirements on the granularity and the quality of products in the industrial production process, the invention introduces a temperature-pressure transient method into the ore crushing industry. At present, the domestic ore crushing is mainly applied to the ore crushing process by adopting strong impact machines such as sand mills, and the specific mode adopts an open-circuit process flow (the open-circuit process is that a product obtained after the material is crushed is directly subjected to the next step without being subjected to screening operation). The technological process of open-circuit application of sand mill and other strong impact machines is shown in the attached figure 2. The advantages of the open-circuit application process are: the process flow is simple, the system is stable, and the operation and maintenance are convenient. However, the open-circuit process neglects the insufficient crushing phenomenon (the insufficient crushing phenomenon is that the boundary part of the material is not extruded or is not extruded enough in the crushing process to cause insufficient crushing, the material does not reach the granularity quality requirement and directly enters the next section of working procedure), and the ore which is leaked and not crushed is used as the final product of the sepiolite ore powder, so that the product has wider and thicker granularity range and uneven thickness, the material is not sufficiently rolled and ground, and the crushing effect is not good.
Therefore, the existing crushing process is improved, the research on a new method for crushing the sepiolite ores is developed, and the method has practical significance on the development of the sepiolite industry. The crushing process based on temperature and pressure transient not only ensures the narrow particle size range of the final product, but also ensures the high uniformity of thickness; the damage of the traditional crushing device such as a stirring mill, a sand mill and the like to the shape structure and the self characteristics of the mineral crystal through the application of shear stress is avoided; the introduction of the temperature field can also reduce the particle agglomeration phenomenon after the product is crushed, and maintain the precision and quality of the final product; the crushing is totally closed, so that the environmental problem of dust emission is completely avoided; each crushing process adopts closed-circuit matching screening, so that the fineness of crushed materials in a single process is guaranteed to the maximum extent, the process energy consumption of ore grinding operation is effectively reduced, and the sorting index is improved; and the stability of the production process is ensured, the mechanical abrasion is reduced, the high-quality crushing with high quantity is really realized, and the application range of the sepiolite mineral in the medical and defense industries is greatly improved.
Disclosure of Invention
In view of the above, the invention aims to provide a method for producing a thin-walled ceramic tile with narrow granularity range and high thickness uniformity; the materials in the crushed ore final product are fully crushed by the temperature-pressure transient device, the damage of the crushing to the shape structure and the self characteristics of mineral crystals is reduced to the maximum extent, the particle agglomeration phenomenon after crushing is reduced, the dust on the wall surface is crushed in a closed manner, each crushing process adopts closed-circuit matching screening, the fineness of the crushed materials in a single process is ensured to the maximum extent, the process energy consumption of the ore grinding operation is effectively reduced, and the sorting index is improved; but also ensures the stable production process, reduces the mechanical abrasion, really realizes the high-quantity and high-quality crushing and greatly improves the production capacity of enterprises in mining areas.
The technical scheme adopted by the invention for solving the technical problems is as follows: it comprises the following steps:
s1, primary crushing: putting the sepiolite ore into a mechanical impact crusher for coarse crushing, putting the coarsely crushed ore into a large-diameter screen for classification, returning the oversize material on the large-diameter screen to the upper coarse crushing part because the oversize material cannot pass through the screen due to larger diameter, and feeding the undersize material of the large-diameter screen into a sepiolite spiral stirring mill for medium crushing; the material after the middle crushing is screened by a small-caliber screen mesh at the lower part of the sepiolite spiral stirring mill and falls into a collecting box, and the material on the small-caliber screen mesh cannot pass through the screen due to the larger diameter and returns to the middle crushing at the upper part;
s2, washing ore: feeding the finely crushed materials in the collecting box into an ore washing device;
s3, airing: putting the washed materials into an airing device for moisture airing;
s4, crushing at warm pressure transient: after the material after will airing is given into temperature and pressure transient breaker's the pressurization furnace body of heating and is sealed, evenly give heat through the outside, after the atmospheric pressure risees to 10 atmospheric pressures in the stove, stop outside and give heat, open the furnace body end cover through the split pin, open the twinkling of an eye of end cover, the material of high temperature high pressure state receives the influence of external environment, temperature and pressure instantaneous reduction, the material volume expands rapidly and appears breakage, simultaneously powdered ore self internal energy and moisture dissipate rapidly, the reunion phenomenon of the powdered ore that obtains after having restrained smashing, the granularity quality of final product has been promoted, the material after a period of standing is final broken product promptly.
The coarse crushing adopts a mechanical impact crusher, the feeding granularity is less than 500mm, and the aperture of a large-aperture screen is 70 mm; the medium crushing adopts a sepiolite spiral stirring mill, the feeding particle size is less than 70mm, and the aperture of a small-aperture screen mesh is 5 mm; fine crushing by using a temperature-pressure transient crushing device, wherein the particle size of the fine crushed materials is less than 1 mm; the oversize material of the screen of any crushing step is collected after screening and returned to the previous step for re-crushing.
The crushing and dispersing of the mechanical impact crusher are treated by a falling and dispersing mode and a mechanical dispersing mode, the crushed materials are fed into a screen surface with 70mm multiplied by 70mm of screen mesh for screening, the materials on the screen are returned to the mechanical impact crusher, the materials under the screen enter a middle crushing step, and the mechanical impact crusher and the screen surface form a closed system.
The ore washing process adopts a fixed screen and an ore washer, and the particle size of the overflow material of the ore washer is less than 1 mm.
In the warm-pressing transient crushing step, the ore is sieved in the screen cloth that the sieve mesh is 5mm x 5mm for the material after the broken piece is broken in the middle of, the product under the sieve gets into in the warm-pressing transient breaker furnace body and carries out final breakage after washing the ore, the material returns in the last broken step of sieving and carries out the secondary crushing, after the material was put into the furnace body after the broken piece in the middle of waiting, the end cover is closed, outside heat source starts and lasts to heat to the furnace body, the motor drives the gyro wheel and rotates the inside even heating that makes the device of furnace body, when the manometer shows that internal pressure reaches 10 atmospheric pressures, trigger the split pin, material pressure and temperature instantaneous reduction in the furnace body in the moment are opened to the end cover, realize the even high quality breakage.
The invention has the beneficial effects that: compared with the traditional crushing process flow, the process adopts a production method of a screening closed-loop process flow for realizing ore crushing by instantaneous change of high temperature and high pressure, so that the narrow particle size range and high uniformity of a final product are ensured; the materials in the crushed ore final product are fully crushed in the device, so that the mechanical abrasion and the uneven crushing of the ore caused by the crushing of the traditional machine are reduced to the maximum extent, the damage to the particle morphology structure and the crystal characteristic caused by the crushing of the ore powder under the rolling and grinding of the traditional strong machine through the shearing stress is effectively reduced, the crushing is carried out through the tension and the compression stress change of the ore in the temperature and pressure transient process, and the processing fineness and the sorting index of the crushed materials can be effectively improved; and the stability of the production process is ensured, the high-quality crushing with high quantity is really realized, and the application range of the sepiolite mineral in medical treatment and national defense industry is greatly improved.
Drawings
Fig. 1 is a process flow diagram for a conventional high impact breaker mechanical open circuit application.
FIG. 2 is a process flow diagram of the present invention.
In the figure: 1-a mechanical impact crusher, 2-a large-caliber screen, 3-a sepiolite spiral stirring mill, 4-a small-caliber screen, 5-an ore washer, 6-an airing device, 7-a fixed screen and 8-a temperature and pressure transient crushing device.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples.
As shown in the figure: the method for crushing the sepiolite ore temperature and pressure transient change comprises the following steps: primary crushing, ore washing and warm-pressing transient crushing; the method comprises the following steps of roughly crushing sepiolite ores with the particle size of less than 500mm by a mechanical impact crusher (feeding particle size is less than 500mm), feeding the obtained materials into a large-diameter screen 2 to be screened (closed circuit), wherein the pore size of the large-diameter screen is 70mm multiplied by 70mm, then returning oversize materials (the particle size is more than 70mm) of the large-diameter screen 2 into the mechanical impact crusher to be secondarily roughly crushed, feeding undersize materials (the particle size is less than 70mm) into a sepiolite spiral stirring mill 3 to be subjected to intermediate crushing (the feeding particle size is less than 70mm), feeding the obtained materials into a small-diameter screen 4 to be screened (closed circuit), wherein the pore size of the small-diameter screen 4 is 5mm multiplied by 5mm, then returning oversize materials (the particle size is more than 5mm) of the small-diameter screen 4 into the sepiolite spiral stirring mill 3 to be secondarily coarsely crushed, and feeding undersize materials (the particle size is less than 5mm) into a ore washer 5, the particle size of the overflow material of the ore washer 5 is less than 1mm, the material dried by the drying device 6 is fed into the temperature-pressure transient crushing device 8 through the undersize product screened by the fixed screen 7 (closed circuit), the material is fed into the heating and pressurizing furnace body of the temperature-pressure transient crushing device to be sealed, the outside is uniformly heated, when the temperature in the furnace body is increased, the air pressure in the furnace body is gradually increased, the sepiolite material in the furnace body is also influenced by high temperature and high pressure, and because the sepiolite is a kind of hydrous silicate clay mineral, the water and the attached water in the material are gradually evaporated and released and are continuously accumulated in the furnace body. Along with the continuous rising of temperature, the atmospheric pressure in the stove is also bigger and bigger, and under the effect of high atmospheric pressure, the moisture evaporation of material is obstructed, and remaining moisture in the material also is in the state of rising temperature and boosting pressure, and the material wholly demonstrates loose state. Because the pressure difference is small because of the restriction of the pressure in the furnace, the change of the external structure of the material is not obvious at the moment. When the air pressure in the furnace rises to 10 atmospheric pressures, the external heat supply is stopped, the end cover of the furnace body is opened through the split pin, the end cover is opened at the moment, the material in a high-temperature and high-pressure state is influenced by the external environment, the temperature and the pressure are instantaneously lower, the binding force of the high-temperature and high-pressure state in the furnace body is separated, the water in the material is rapidly expanded, the rapid increase of the volume instantly and the pressure stress of the water on the material is rapidly spread, meanwhile, the material is subjected to extremely large tensile stress due to the self expansion, the original structural form is difficult to maintain due to the high hardness of minerals, the material is rapidly expanded and crushed, meanwhile, the internal energy and the water in the mineral powder are rapidly dissipated, the agglomeration phenomenon of the mineral powder obtained after crushing is inhibited, the granularity quality of a final product. The final product had a particle size composition of: less than 1mm accounts for 100%, less than 500 μm accounts for more than 65%, less than 300 μm accounts for more than 55%.
The crushing and dispersing of the mechanical impact crusher are treated by a falling and dispersing mode and a mechanical dispersing mode, the crushed materials are fed into a screen surface with 70mm multiplied by 70mm of screen mesh for screening, the materials on the screen are returned to the mechanical impact crusher, the materials under the screen enter a middle crushing step, and the mechanical impact crusher and the screen surface form a closed system.
Compared with the traditional process flow, the process adopts a production method of a screening closed-loop process flow for realizing ore crushing by instantaneous change of high temperature and high pressure, so that the narrow particle size range and high uniformity of a final product are ensured; the materials in the crushed ore final product are fully crushed in the device, so that the mechanical abrasion and the uneven crushing of the ore caused by the crushing of the traditional machine are reduced to the maximum extent, the damage to the particle morphology structure and the crystal characteristic caused by the crushing of the ore powder under the rolling and grinding of the traditional strong machine through the shearing stress is effectively reduced, the crushing is carried out through the tension and the compression stress change of the ore in the temperature and pressure transient process, and the processing fineness and the sorting index of the crushed materials can be effectively improved; and the stability of the production process is ensured, the high-quality crushing with high quantity is really realized, and the application range of the sepiolite mineral in medical treatment and national defense industry is greatly improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. A sepiolite ore temperature and pressure transient crushing method is characterized by comprising the following steps:
s1, primary crushing: putting the sepiolite ore into a mechanical impact crusher for coarse crushing, putting the coarsely crushed ore into a large-diameter screen for classification, returning the oversize material on the large-diameter screen to the upper coarse crushing part because the oversize material cannot pass through the screen due to larger diameter, and feeding the undersize material of the large-diameter screen into a sepiolite spiral stirring mill for medium crushing; the material after the middle crushing is screened by a small-caliber screen mesh at the lower part of the sepiolite spiral stirring mill and falls into a collecting box, and the material on the small-caliber screen mesh cannot pass through the screen due to the larger diameter and returns to the middle crushing at the upper part;
s2, washing ore: feeding the finely crushed materials in the collecting box into an ore washing device;
s3, airing: putting the washed materials into an airing device for moisture airing;
s4, crushing at warm pressure transient: the dried material is fed into a heating and pressurizing furnace body of a temperature-pressure transient crushing device for sealing,
the furnace body end cover is opened through the cotter pin, the instant of opening the end cover is opened, the material in a high-temperature and high-pressure state is influenced by the external environment, the temperature and the pressure are instantaneously reduced, the material volume is rapidly expanded and crushed, meanwhile, the internal energy and the moisture of the mineral powder are rapidly dissipated, the agglomeration phenomenon of the mineral powder obtained after crushing is inhibited, the granularity quality of a final product is improved, and the material after standing for a period of time is the final crushed product.
2. The method for crushing the sepiolite ore with the temperature and pressure transient change according to the claim 1, wherein a mechanical impact crusher is adopted for coarse crushing, the feeding granularity is less than 500mm, and the aperture of a large-aperture screen is 70 mm; the medium crushing adopts a sepiolite spiral stirring mill, the feeding particle size is less than 70mm, and the aperture of a small-aperture screen mesh is 5 mm; fine crushing by using a temperature-pressure transient crushing device, wherein the particle size of the fine crushed materials is less than 1 mm; the oversize material of the screen of any crushing step is collected after screening and returned to the previous step for re-crushing.
3. The method for crushing sepiolite ore with temperature and pressure transients according to claim 1 or 2, wherein the crushed dispersion of the mechanical impact crusher is treated by a combined scattering mode of falling scattering and mechanical scattering, the scattered material is fed into a screen surface with 70mm x 70mm screen mesh for screening, the oversize material is returned to the mechanical impact crusher, the undersize material is fed into the intermediate crushing step, and the mechanical impact crusher and the screen surface form a closed system.
4. The method for breaking the sepiolite ore subjected to the temperature and pressure transient according to claim 1, wherein a fixed screen and an ore washer are adopted in the ore washing process, and the grain size of an overflow material of the ore washer is less than 1 mm.
5. The sepiolite ore temperature-pressure transient crushing method according to claim 1, wherein in the temperature-pressure transient crushing step, after the ore is crushed by middle crushing, the material is fed into a screen with 5mm x 5mm screen meshes for screening, the product under the screen is washed and then enters a furnace body of the temperature-pressure transient crushing device for final crushing, the material on the screen returns to the last middle crushing step for secondary crushing, after the material after middle crushing is placed in the furnace body, an end cover is closed, an external heat source is started to continuously heat the furnace body, a motor drives a roller to rotate the furnace body to uniformly heat the interior of the device, when a pressure gauge shows that the internal pressure reaches 10 atmospheric pressures, a cotter pin is triggered, the end cover is opened, the material pressure and the temperature in the furnace body are instantaneously reduced, and uniform high-quality crushing of the mineral product is realized.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6418455A (en) * | 1987-07-13 | 1989-01-23 | Showa Denko Kk | Method of crushing carbon powder |
| JP2002066372A (en) * | 2000-08-30 | 2002-03-05 | Central Res Inst Of Electric Power Ind | Method of embrittling coal, method of crushing coal using the same and method of burning coal |
| CN101422750A (en) * | 2007-10-30 | 2009-05-06 | 山东科技大学 | Novel coal crushing method |
| CN102179284A (en) * | 2011-01-26 | 2011-09-14 | 重钢西昌矿业有限公司 | Method for crushing iron ore |
| CN104549690A (en) * | 2014-12-10 | 2015-04-29 | 苏州路路顺机电设备有限公司 | Ore grinding process |
| CN105921239A (en) * | 2016-04-21 | 2016-09-07 | 河南理工大学 | Device and method for crushing ores by pressure-relief gas explosion |
| CN109847893A (en) * | 2019-03-15 | 2019-06-07 | 青岛国泰检测科技有限公司 | A kind of powder sample processing unit and processing method |
-
2020
- 2020-12-09 CN CN202011001119.2A patent/CN112191350A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6418455A (en) * | 1987-07-13 | 1989-01-23 | Showa Denko Kk | Method of crushing carbon powder |
| JP2002066372A (en) * | 2000-08-30 | 2002-03-05 | Central Res Inst Of Electric Power Ind | Method of embrittling coal, method of crushing coal using the same and method of burning coal |
| CN101422750A (en) * | 2007-10-30 | 2009-05-06 | 山东科技大学 | Novel coal crushing method |
| CN102179284A (en) * | 2011-01-26 | 2011-09-14 | 重钢西昌矿业有限公司 | Method for crushing iron ore |
| CN104549690A (en) * | 2014-12-10 | 2015-04-29 | 苏州路路顺机电设备有限公司 | Ore grinding process |
| CN105921239A (en) * | 2016-04-21 | 2016-09-07 | 河南理工大学 | Device and method for crushing ores by pressure-relief gas explosion |
| CN109847893A (en) * | 2019-03-15 | 2019-06-07 | 青岛国泰检测科技有限公司 | A kind of powder sample processing unit and processing method |
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