CN102513202A - Novel process for producing superfine powder - Google Patents

Novel process for producing superfine powder Download PDF

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Publication number
CN102513202A
CN102513202A CN2011104432316A CN201110443231A CN102513202A CN 102513202 A CN102513202 A CN 102513202A CN 2011104432316 A CN2011104432316 A CN 2011104432316A CN 201110443231 A CN201110443231 A CN 201110443231A CN 102513202 A CN102513202 A CN 102513202A
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CN
China
Prior art keywords
powder
vertical roller
roller mill
superfine powder
belt
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2011104432316A
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Chinese (zh)
Inventor
王浩
王显彬
习巧翠
田敏刚
高希平
张再勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shaanxi Design & Research Institute Of Building Materials Industry
SHAANXI STAR INDUSTRIAL Co Ltd
Original Assignee
Shaanxi Design & Research Institute Of Building Materials Industry
SHAANXI STAR INDUSTRIAL Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shaanxi Design & Research Institute Of Building Materials Industry, SHAANXI STAR INDUSTRIAL Co Ltd filed Critical Shaanxi Design & Research Institute Of Building Materials Industry
Priority to CN2011104432316A priority Critical patent/CN102513202A/en
Publication of CN102513202A publication Critical patent/CN102513202A/en
Pending legal-status Critical Current

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Abstract

The invention provides a novel process for producing superfine powder. Raw materials are fed to a material receiving hopper through a grab machine, flow to a large-dip-angle belt machine after being metered by a belt type metering scale, flow to a pneumatic double-layer raw material feeding valve after iron is removed through an iron remover, are fed to a vertical roller mill, are ground by a millstone of the vertical roller mill and a grinder roll, rise up because of high-pressure hot air of a drying device, are dried by the high-pressure hot air of the drying device in a flash baking mode, and are separated by a powder separator in the vertical roller mill. The superfine powder is led out by air, is collected by a bag type dust collector, enters a bulk machine through an air conveying chute, and is carried away through a bulk vehicle. Coarse powder coming out of the vertical roller mill enters a coarse powder discharging pipe and enters the vertical roller mill for being repeatedly ground from the pneumatic double-layer raw material feeding valve through a belt conveyer, a lifter and a belt conveyer. Compared with the prior art, the novel process is simplified, small in investment and occupied area, high in powder grinding efficiency and low in power consumption.

Description

The new technology that a kind of superfine powder is produced
Technical field
New technology and device thereof that the present invention provides a kind of superfine powder to produce.
Background technology
At present, being used for technology that superfine powder produces and all being with the ball mill is nucleus equipment, adds dryer, roll squeezer, powder concentrator, dust-precipitator and a series of conveying, metering, storage facilities and supporting building; Complex process, investment are greatly; Floor space is big, and mill efficiency is low, power consumption is high, and 300,000 tons of general superfine powder grinding stations need be taken up an area of 50 mu; Make an investment of 50 million yuan product specific area 380m 2/ kg, power consumption 90kwh/t.
Summary of the invention
The purpose of this invention is to provide the new technology that a kind of superfine powder is produced, compared with prior art, work simplification of the present invention invest for a short time, and floor space is little, and mill efficiency height, power consumption are low.
Technical scheme of the present invention is: the new technology that a kind of superfine powder is produced, and raw material is through expecting hopper, through flowing to the high angle belt conveyer machine after the metering of belt-type weigher on the grab claw; Through getting into pneumatic double-deck raw material feeding valve after the tramp iron separator deironing; The feeding vertical roll grinder rolls through vertical roller grinder mill, grinding roller, and is dry through drying unit; After the powder concentrator sorting in the vertical roll grinder; Superfine powder is taken out of to get in the bag filter by air and is collected, and gets into machine in bulk through air conveyer flume, is transported by bulk vehicle again; The meal that comes out from vertical roll grinder gets into the meal tremie pipe, gets into vertical roll grinder through belt conveyor, elevator and belt conveyor from pneumatic double-deck feed back feeding valve and repeats grinding.
Effect of the present invention:
1, the present invention adopts the high angle belt conveyer feeding system, practices thrift soil 1000m 2, feeding is difficult for sticking bucket, is difficult for stopping up, and running rate can reach more than 90%.
2, the present invention adopts the modified vertical roller grinder to carry out the production of superfine powder grinding, work simplification, and the collection oven dry is integrated with grinding; Save the dryer system in the former technology grinding; Grinding and sorting integrated has saved complex techniques processes such as precomminution ball mill, powder concentrator in the former technology, practices thrift investment; Raise the efficiency, the superfine powder properties of product improve greatly.
3, fines collection adopts the air box impulse bagroom, and is reliable, and dust-collecting efficiency is high, and concentration of emission is less than 50mg/m 3, technical process is simplified.
4, the superfine powder product is carried the air conveyer flume mode that adopts, no movable body, and power is little, and running rate is high, and power consumption is little.
5, products storage adopts concrete bed steel plate storehouse body, and reduced investment is experienced all sorts of durable.Inflation activation in the storehouse is adopted in finished product shipment, machine automatic loading in bulk system, succinctly conveniently, environmental protection.
6, compared with prior art, work simplification of the present invention, machine quantity reduces 60%; Fault rate reduces 60%, and installed power reduces 50%, and floor space reduces 50%; The production operation workman reduces 50%, reduced investment 40%, and the unit product power consumption is reduced to 40kwh/t by original 90kwh/t; Product fineness is by original 380m 2/ kg brings up to 420m 2More than/the kg, properties of product are greatly improved, and activity index is brought up to S95, S105 by original S85, and production scale is brought up to by 200,000 tons of original annual outputs and produced 600000 tons per year.
7, the novelty of the vertical roller mill of the present invention is used, and makes the scope of application of vertical roller grinder expand to the superfine powder field, and performance is greatly enhanced.
8, the present invention makes production process realize full-automation to the supporting design of superfine powder Automation of Manufacturing Process control system, and stable yield, quality improve.
Description of drawings
Fig. 1 is the structural representation of apparatus of the present invention.
The specific embodiment
As shown in Figure 1, raw material is through expecting hopper 2, through flowing to high angle belt conveyer machine 4 after 3 meterings of belt-type weigher on the grab claw 1; Through getting into pneumatic double-deck raw material feeding valve 6-1 after tramp iron separator 5 deironing; Feeding vertical roll grinder 7 rolls through vertical roller grinder mill, grinding roller, takes up also " dodging baking " drying through the high-pressure hot air of drying unit 17; After powder concentrator 11 sortings in the vertical roll grinder; Superfine powder is taken out of to get in the bag filter 8 by air and is collected, and gets into machine 10 in bulk through air conveyer flume 9, crosses bulk vehicle and transports; The meal that comes out from vertical roll grinder gets into meal tremie pipe 12, gets into vertical roll grinder 7 through belt conveyor 13, elevator 14, belt conveyor 15 from pneumatic double-deck feed back feeding valve 6-2 and repeats grinding.Air-introduced machine 16 provides negative pressure for vertical roll grinder 7 and bag filter 8, and slag milling production line automation control system (DCS controls system) provides automatic control for whole flow process, makes it simple to operate.
DCS controls system, comprises PLC I/O cabinet, central operator's panel and by the integrated industrial computer of business computer processing industry software.
DCS control system carries out reliable and real-time monitoring and control to the start and stop control and the technological parameter point (like temperature, negative pressure, electric current, valve etc.) of equipment such as the main process equipment of this production line, constant feeder, total air-introduced machine, elevator.

Claims (1)

1. the new technology that superfine powder is produced is characterized in that raw material passes through to expect on the grab claw (1) hopper (2), through flowing to high angle belt conveyer machine (4) after belt-type weigher (3) metering; Through getting into pneumatic double-deck raw material feeding valve (6-1) after tramp iron separator (5) deironing; Feeding vertical roll grinder (7) rolls through vertical roller grinder mill, grinding roller, through drying unit (17) drying; After the powder concentrator in the vertical roll grinder (11) sorting; Superfine powder is taken out of to get in the bag filter (8) by air and is collected, and gets into machine in bulk (10) through air conveyer flume (9), is transported by bulk vehicle again; The meal that comes out from vertical roll grinder gets into meal tremie pipe (12), gets into vertical roll grinder (7) through belt conveyor (13), elevator (14) and belt conveyor (15) from pneumatic double-deck feed back feeding valve (6-2) and repeats grinding.
CN2011104432316A 2011-12-27 2011-12-27 Novel process for producing superfine powder Pending CN102513202A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011104432316A CN102513202A (en) 2011-12-27 2011-12-27 Novel process for producing superfine powder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011104432316A CN102513202A (en) 2011-12-27 2011-12-27 Novel process for producing superfine powder

Publications (1)

Publication Number Publication Date
CN102513202A true CN102513202A (en) 2012-06-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011104432316A Pending CN102513202A (en) 2011-12-27 2011-12-27 Novel process for producing superfine powder

Country Status (1)

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CN (1) CN102513202A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102921547A (en) * 2012-11-20 2013-02-13 北方重工集团有限公司 Dry type ore dressing process for iron ore
CN102962116A (en) * 2012-12-04 2013-03-13 王今奇 Multilayer vertical mill
CN105233947A (en) * 2015-08-26 2016-01-13 张志德 Automatic device production system for processing of mineral building materials
CN109833961A (en) * 2017-11-29 2019-06-04 杭州益森砂浆有限公司 A kind of sand system processed
CN111617872A (en) * 2019-09-24 2020-09-04 陕西斯达实业有限公司 Large-scale dry-method enrichment ore dressing energy-saving and environment-friendly process for quartz-vein noble metal ore

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03187957A (en) * 1989-12-15 1991-08-15 Osaka Cement Co Ltd Cement preparation apparatus provided with preliminarily grinding device
JPH04135654A (en) * 1990-12-29 1992-05-11 Kawasaki Heavy Ind Ltd Grinder
CN1482090A (en) * 2002-09-09 2004-03-17 上海宝田新型建材有限公司 Instantly grinding scoria micro powder and process for manufacturing the same
CN2669150Y (en) * 2003-12-15 2005-01-05 王子军 Two-way feeding electronic belt balance
CN101596483A (en) * 2009-06-26 2009-12-09 南京凯盛水泥技术工程有限公司 A kind of material grinding system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03187957A (en) * 1989-12-15 1991-08-15 Osaka Cement Co Ltd Cement preparation apparatus provided with preliminarily grinding device
JPH04135654A (en) * 1990-12-29 1992-05-11 Kawasaki Heavy Ind Ltd Grinder
CN1482090A (en) * 2002-09-09 2004-03-17 上海宝田新型建材有限公司 Instantly grinding scoria micro powder and process for manufacturing the same
CN2669150Y (en) * 2003-12-15 2005-01-05 王子军 Two-way feeding electronic belt balance
CN101596483A (en) * 2009-06-26 2009-12-09 南京凯盛水泥技术工程有限公司 A kind of material grinding system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102921547A (en) * 2012-11-20 2013-02-13 北方重工集团有限公司 Dry type ore dressing process for iron ore
CN102962116A (en) * 2012-12-04 2013-03-13 王今奇 Multilayer vertical mill
CN102962116B (en) * 2012-12-04 2015-12-09 相雪 Multilayer vertical mill
CN105233947A (en) * 2015-08-26 2016-01-13 张志德 Automatic device production system for processing of mineral building materials
CN109833961A (en) * 2017-11-29 2019-06-04 杭州益森砂浆有限公司 A kind of sand system processed
CN109833961B (en) * 2017-11-29 2021-03-12 杭州益森实业有限公司 Sand making system
CN111617872A (en) * 2019-09-24 2020-09-04 陕西斯达实业有限公司 Large-scale dry-method enrichment ore dressing energy-saving and environment-friendly process for quartz-vein noble metal ore

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Application publication date: 20120627