WO2020098687A1 - 空气干砂选煤***上用排矸***上的负压*** - Google Patents
空气干砂选煤***上用排矸***上的负压*** Download PDFInfo
- Publication number
- WO2020098687A1 WO2020098687A1 PCT/CN2019/117946 CN2019117946W WO2020098687A1 WO 2020098687 A1 WO2020098687 A1 WO 2020098687A1 CN 2019117946 W CN2019117946 W CN 2019117946W WO 2020098687 A1 WO2020098687 A1 WO 2020098687A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- negative pressure
- valve
- discharge pipe
- exhaust
- gangue
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B5/00—Washing granular, powdered or lumpy materials; Wet separating
- B03B5/28—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation
- B03B5/46—Washing granular, powdered or lumpy materials; Wet separating by sink-float separation using dry heavy media; Devices therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B11/00—Feed or discharge devices integral with washing or wet-separating equipment
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03B—SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
- B03B7/00—Combinations of wet processes or apparatus with other processes or apparatus, e.g. for dressing ores or garbage
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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
- B07B9/00—Combinations of apparatus for screening or sifting or for separating solids from solids using gas currents; General arrangement of plant, e.g. flow sheets
Definitions
- the invention belongs to the technical field of coal separation, and particularly relates to a negative pressure system on a gangue discharge system used in an air dry sand coal preparation system.
- the main purpose of raw coal separation is to separate and separate clean coal and gangue to obtain clean clean coal resources.
- the main leading technology in this technical field is wet coal preparation. Due to various problems and disadvantages of wet coal preparation, the present invention People have developed an air dry sand coal preparation technology that does not use water.
- air and dry sand media are used to achieve a fluidized atmosphere, and separation is achieved according to the density difference between clean coal and gangue, where gangue discharge affects the whole
- the gangue discharge in the dry coal preparation is mainly by fixing the scraper on the chain, and the chain is driven by the transmission wheel. Because the dry coal preparation can make the coal and gangue layered, the gangue will be located in the lower layer due to the higher density, so through the chain The lower scraper can push out the gangue; this structure will discharge the large and small gangue and the medium uniformly when in use, but the chain is easy to get stuck in the gangue, which will cause greater damage to the chain; although there are also separate gangue sizes before collecting Yes, but because the small particles of gangue and the medium contain a lot of impurities, which makes the medium mixed with impurities in the subsequent separation, which affects the subsequent secondary use; therefore, it is necessary to improve.
- the purpose of the present invention is to provide a negative pressure system on the gangue discharge system used in the air dry sand coal preparation system in view of the deficiencies of the prior art, which has the advantages of not easy to damage the equipment when screening gangue and capable of removing impurities in the medium Features.
- a negative pressure system on an exhaust dry coal preparation system for air gangue system which includes a negative pressure chamber, an exhaust fan, a media filter screen, a buffer chamber, a suction chamber Feed fan, first valve, second valve and discharge pipe, the discharge pipe is located in the buffer chamber; the first valve is located at the inlet of the discharge pipe, and the second valve is located at the discharge of the discharge pipe
- the suction fan is located between the first valve and the second valve, and it is in communication with the discharge pipe; the discharge pipe is in communication with the negative pressure chamber; the upper side of the negative pressure chamber is provided with an exhaust port,
- the exhaust fan is connected to the exhaust port, and a dust removal bag is connected to the rear of the exhaust fan; the media filter screen is provided on the exhaust port; and the bottom of the negative pressure chamber is provided with a discharge port.
- the exhaust fan is a Roots fan.
- the first valve and the second valve are both one-way solenoid valves.
- the position of the exhaust port is higher than the position of the discharge port.
- the present invention has the advantages compared with the prior art that the present invention is not easy to cause damage to the equipment during use, and the interleaved use of the first valve and the second valve can keep the vacuum suction of the negative pressure chamber stable ;
- the media filter screen can remove the impurities while preventing the media from being sucked by the exhaust fan.
- Figure 1 is a schematic diagram of the present invention.
- a negative pressure system on an exhaust gangue system for an air dry sand coal preparation system which includes a negative pressure chamber 10, an exhaust fan 11, a media filter screen 12, a buffer chamber 13, and a suction material
- the blower 14, the first valve 15, the second valve 16 and the discharge pipe 17, the discharge pipe 17 has a through structure at both ends, which is located in the buffer chamber, and one end of which is connected to the sorting chamber on the waste discharge system, and the other end It communicates with the negative pressure chamber 10, so that the small particles of gangue and medium discharged from the sorting chamber can be discharged into the negative pressure chamber 10 through the discharge pipe 17.
- the first valve 15 and the second valve 16 are both one-way solenoid valves.
- the first valve 15 is located on the inlet of the discharge pipe 17, the second valve 16 is located on the outlet of the discharge pipe 17, and the suction fan 14 is located on the first Between a valve 15 and a second valve 16, and it is connected with the discharge pipe 17; when the suction fan 14 is working, the first valve 15 is opened, the second valve 16 is closed, under the action of the suction fan 14, the suction
- the feed pipe 17 can absorb small particles of gangue and media at the bottom of the sorting chamber to the inside.
- the upper side of the negative pressure chamber 10 is provided with an exhaust port, the location of the exhaust port is higher than the position of the discharge port, the exhaust fan 11 is a Roots fan, and is connected to the exhaust port, a dust bag is connected to the rear of the exhaust fan, and the media is filtered
- the sieve 12 is arranged on the exhaust port. Since the medium is generally iron ore particles, the media filter sieve 12 is generally a magnetic filter sieve; when the exhaust fan 11 is in operation, the first valve 15 is closed and the second valve 16 is opened.
- the gangue and medium of the pipeline 17 will be sucked into the negative pressure chamber 10, because the gangue and medium have a higher specific gravity, they will fall to the bottom of the negative pressure chamber 10 and be collected through the discharge port; and dust and other impurities will be drawn by the fan 11 Inhaled and collected by the dust bag.
- the media filter screen can block the media in the negative pressure chamber and collect it from the discharge port after falling.
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
Description
Claims (4)
- 一种空气干砂选煤***上用排矸***上的负压***,其特征在于:包括负压室、抽风机、介质过滤筛、缓冲室、吸料风机、第一阀门、第二阀门及出料管道,所述出料管道位于缓冲室内;所述第一阀门位于出料管道的进料口上,所述第二阀门位于出料管道的出料口上;所述吸料风机位于第一阀门与第二阀门之间,且其与出料管道连通;所述出料管道与负压室连通;所述负压室的上侧面设置有抽风口,所述抽风机与抽风口连接,所述抽风机后部连接有除尘袋;所述介质过滤筛设置在抽风口上;所述负压室的底部设置有下料口。
- 根据权利要求1所述的空气干砂选煤***上用排矸***上的负压***,其特征在于:所述抽风机为罗茨风机。
- 根据权利要求1或2所述的空气干砂选煤***上用排矸***上的负压***,其特征在于:所述第一阀门及第二阀门均为单向电磁阀。
- 根据权利要求3所述的空气干砂选煤***上用排矸***上的负压***,其特征在于:所述抽风口的位置高于出料口的位置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201811356088.5A CN109317303A (zh) | 2018-11-14 | 2018-11-14 | 空气干砂选煤***上用排矸***上的负压*** |
CN201811356088.5 | 2018-11-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020098687A1 true WO2020098687A1 (zh) | 2020-05-22 |
Family
ID=65257247
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2019/117946 WO2020098687A1 (zh) | 2018-11-14 | 2019-11-13 | 空气干砂选煤***上用排矸***上的负压*** |
Country Status (2)
Country | Link |
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CN (1) | CN109317303A (zh) |
WO (1) | WO2020098687A1 (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112620107A (zh) * | 2020-12-01 | 2021-04-09 | 徐玉芹 | 一种颗粒饲料的残渣清杂装置及工作方法 |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109317303A (zh) * | 2018-11-14 | 2019-02-12 | 王光领 | 空气干砂选煤***上用排矸***上的负压*** |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3998728A (en) * | 1974-03-02 | 1976-12-21 | Klockner-Humboldt-Deutz Aktiengesellschaft | Settling classifier for sorting mineral raw materials |
CN1593774A (zh) * | 2003-09-12 | 2005-03-16 | 唐山市神州机械有限公司 | 干法分选床、采用该分选床的复合式干法分选机及分选装置 |
CN201279508Y (zh) * | 2008-09-27 | 2009-07-29 | 镇江华东电力设备制造厂 | 石子煤真空清理分选*** |
CN204841987U (zh) * | 2015-07-16 | 2015-12-09 | 陕西蟠龙实业有限公司 | 一种去灰分选床 |
CN109317303A (zh) * | 2018-11-14 | 2019-02-12 | 王光领 | 空气干砂选煤***上用排矸***上的负压*** |
CN209238159U (zh) * | 2018-11-14 | 2019-08-13 | 王光领 | 空气干砂选煤***上用排矸***上的负压*** |
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2018
- 2018-11-14 CN CN201811356088.5A patent/CN109317303A/zh not_active Withdrawn
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2019
- 2019-11-13 WO PCT/CN2019/117946 patent/WO2020098687A1/zh active Application Filing
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3998728A (en) * | 1974-03-02 | 1976-12-21 | Klockner-Humboldt-Deutz Aktiengesellschaft | Settling classifier for sorting mineral raw materials |
CN1593774A (zh) * | 2003-09-12 | 2005-03-16 | 唐山市神州机械有限公司 | 干法分选床、采用该分选床的复合式干法分选机及分选装置 |
CN201279508Y (zh) * | 2008-09-27 | 2009-07-29 | 镇江华东电力设备制造厂 | 石子煤真空清理分选*** |
CN204841987U (zh) * | 2015-07-16 | 2015-12-09 | 陕西蟠龙实业有限公司 | 一种去灰分选床 |
CN109317303A (zh) * | 2018-11-14 | 2019-02-12 | 王光领 | 空气干砂选煤***上用排矸***上的负压*** |
CN209238159U (zh) * | 2018-11-14 | 2019-08-13 | 王光领 | 空气干砂选煤***上用排矸***上的负压*** |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112620107A (zh) * | 2020-12-01 | 2021-04-09 | 徐玉芹 | 一种颗粒饲料的残渣清杂装置及工作方法 |
CN112620107B (zh) * | 2020-12-01 | 2022-01-18 | 山东宜生生物科技集团有限公司 | 一种颗粒饲料的残渣清杂装置 |
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