CN202983822U

CN202983822U - Cement combination grinding system

Info

Publication number: CN202983822U
Application number: CN2012205953664U
Authority: CN
Inventors: 杨兆祺; 史锁奎; 程建民; 王振芳
Original assignee: Aksu Tianshan Duolang Cement Co Ltd
Current assignee: Aksu Tianshan Duolang Cement Co Ltd
Priority date: 2012-11-13
Filing date: 2012-11-13
Publication date: 2013-06-12
Anticipated expiration: 2022-11-13

Abstract

The utility model provides a cement combination grinding system which mainly comprises elevators, a roller press, a first powder selecting machine, second powder selecting machines, a ball mill and a bag type dust collector. The cement combination grinding system mainly comprises two circulation systems. A first circulation system comprises a current stabilization bin, an elevator, the roller press, the first powder selecting machine and a second powder selecting machine. The second circulation system comprises a second powder selecting machine, the ball mill, a third powder selecting machine, two conveying machines and an elevator. As finished cement contained in materials extruded by the roller press is sorted out, over-grinding phenomena of the ball mill are reduced, system output is increased by more than 10% through production verification, and power consumption is lowered.

Description

Cement combination grinding system

Technical field

The utility model relates to a kind of cement combination grinding system.

Background technology

In recent years, along with the growing tension of the energy and rising steadily of price, cause the production cost of cement manufacturers more and more higher, saving energy and reduce the cost has become the major issue of each enterprise development with protection of the environment.In cement production process, grinding link power consumption is very large, tradition grinding process ton cement power consumption is the 40kwh/t left and right, the roller press combination grinding technology that began in recent years to popularize makes the cement grinding mill platform produce significantly raising, ton cement power consumption also is reduced to the 32kwh/t left and right, accounts for manufacture of cement power consumption 35% left and right.

How to improve cement grinding mill output under existing weaponry and equipment and process conditions, reduce the product power consumption, become the target of technical staff's research.My company has carried out continuous research to this system in the use procedure of cement roller press combination grinding system, done great many of experiments and statistical analysis, finds that existing technique still has room for improvement.

The utility model content

The utility model provides a kind of cement combination grinding system, characteristics for cement roller press combination grinding system, the problem of grinding too much appearred in the problem and the interior fine powder of cement mill that solve roll squeezer finished product secondary sorting, thereby realized the purpose that cement grinding system platform product improves and power consumption reduces.

For solving above technical problem, the utility model provides following technical scheme: cement combination grinding system, be automatic control system, described cement combination grinding system comprises current stabilization storehouse, elevator, roll squeezer, the first powder concentrator, the second powder concentrator, ball mill and bag filter; Described cement combination grinding system mainly comprises two circulatory systems, first circulatory system comprises current stabilization storehouse, elevator, roll squeezer, the first powder concentrator and the second powder concentrator, front and back order according to the material flow warp: current stabilization storehouse connection roll squeezer and the first powder concentrator, roll squeezer is communicated with elevator, and elevator is communicated with the first powder concentrator; At first material enters roll squeezer by the current stabilization storehouse, promoted through elevator by roll squeezer thickness powder mixture out and enter the first powder concentrator, by the first powder concentrator, the thickness compound is broken up separation, thick material enters roll squeezer through the current stabilization storehouse again and again is extruded, and thin material enters the second powder concentrator; Second circulatory system comprises the second powder concentrator, ball mill, the 3rd powder concentrator, bag filter, dust-precipitator, two conveyers and elevator, the fines outlet of the second powder concentrator is communicated with warehouse for finished product, the coarse fodder outlet is communicated with ball mill, the fines outlet of ball mill is communicated with dust-precipitator, the below of coarse fodder outlet is conveyer, dust-precipitator is communicated with warehouse for finished product, conveyer is communicated with elevator, elevator is communicated with the 3rd powder concentrator, the 3rd powder concentrator coarse fodder outlet is communicated with ball mill, the fines outlet is communicated with bag filter, is conveyer below bag filter, and conveyer is communicated with warehouse for finished product.Be finished product from the second powder concentrator thin material out, directly enter warehouse for finished product, meal enters ball mill, thin material is through after ball mill, and the thinner material of a part enters warehouse for finished product through dust-precipitator with the wind, and other thin material is by conveyer, enter the 3rd powder concentrator through elevator again, sub-elect through the 3rd powder concentrator the material that does not meet the finished product condition and enter ball mill again, so form the circular grinding sorting, the most qualified material is all inputted warehouse for finished product; The finished product materials that sorts out from the 3rd powder concentrator is through bag filter, then enters warehouse for finished product through conveyer.

Further, described the second powder concentrator is three separate type powder concentrators.

Further, described the first powder concentrator, the second powder concentrator and three powder concentrators of the 3rd powder concentrator selects the powder precision grade from low to high.

In this cement combination grinding system that the utility model relates to, cement roller press combination grinding system, contain a certain proportion of finished cement in the material of roll squeezer extruding, in conventional art, this finished product still will enter the ball mill grinding, and the grinding phenomenon easily occured, and has reduced system throughput.Present technique is that the finished cement that will contain in the material of roll squeezer extruding sorts out, and that reduces ball mill crosses the grinding phenomenon, improves system throughput, and through producing checking, the product amplitude is put forward more than 10% by system, and power consumption reduces.

Description of drawings

Fig. 1 is the utility model cement combination grinding system architecture schematic diagram;

The 1-elevator; 2-the first powder concentrator; 3-the second powder concentrator; 4-the 3rd powder concentrator; The 5-bag filter; The 6-warehouse for finished product; The 7-elevator; The 8-conveyer; The 9-dust-precipitator; The 10-conveyer; The 11-conveyer; The 12-ball mill; The 13-roll squeezer; 14-current stabilization storehouse;

The specific embodiment

As shown in Figure 1, cement combination grinding system, be automatic control system, cement combination grinding system comprises elevator 1, the first powder concentrator 2, the second powder concentrator 3, the 3rd powder concentrator 4, bag filter 5, elevator 7, conveyer 8, dust-precipitator 9, conveyer 10, conveyer 11, ball mill 12, roll squeezer 13 and current stabilization storehouse 14.

cement combination grinding system mainly comprises two circulatory systems, first circulatory system comprises current stabilization storehouse 14, elevator 1, roll squeezer 13, the first powder concentrator 2 and the second powder concentrator 3, at first material enters roll squeezer 13 by current stabilization storehouse 14, promoted through elevator 1 by roll squeezer 13 thickness powder mixture out and enter the first powder concentrator 2, by the first powder concentrator 2, the thickness compound is broken up separation, thick material 14 enters roll squeezer 13 again and again is extruded through the current stabilization storehouse, and thin material enters the second powder concentrator 3, second circulatory system comprises the second powder concentrator 3, ball mill 12, the 3rd powder concentrator 4, conveyer 10, conveyer 11 and elevator 7, be finished product from the second powder concentrator 3 thin material out, directly enter warehouse for finished product 6, meal enters ball mill 12, thin material is through after ball mill 12, the thinner material of a part enters warehouse for finished product 6 through dust-precipitator 9 with the wind, other thin material is by conveyer 11 and conveyer 10, enter the 3rd powder concentrator 4 through elevator 7 again, sub-elect through the 3rd powder concentrator 4 material that does not meet the finished product condition and enter again ball mill 12, so form the circular grinding sorting, the most qualified material is all inputted warehouse for finished product 6, the finished product materials that sorts out from the 3rd powder concentrator 4 is through bag filter 5, then enters warehouse for finished product through conveyer.

The second powder concentrator 3 is three separate type powder concentrators.

The first powder concentrator 2, the second powder concentrator 3 and 4 three powder concentrators of the 3rd powder concentrator select the powder precision grade from low to high.

By the above structure as can be known, native system is a system of selected grinding step by step, existing system generally not have the process of sorting step by step, causes the thickness powder to grind until till all materials were all ground, the utility model passed through sorting step by step together, every one-level all can sort out qualified material and enter warehouse for finished product, non-finished product enters the next stage grinding system again, again grinds energy savings, reduce material and grind too much this injury that equipment is brought, extension device service life.This system is mainly two circulatory systems, by circular grinding, the material of missing in process of lapping is put into system again grind, and adds new material simultaneously again, and so continuous and reciprocation cycle improves finished product materials production efficiency.

The specific embodiment described in the utility model does not consist of the restriction to the application's scope; every within the spirit and principle of the utility model design, any modification that one of skill in the art can make, be equal to and replace and within improvement etc. all should be included in protection domain of the present utility model.

Claims

1. cement combination grinding system, be automatic control system, it is characterized in that, described cement combination grinding system mainly comprises elevator, roll squeezer, the first powder concentrator, the second powder concentrator, ball mill and bag filter; Described cement combination grinding system mainly comprises two circulatory systems, first circulatory system comprises current stabilization storehouse, elevator, roll squeezer, the first powder concentrator and the second powder concentrator, front and back order according to the material flow warp: current stabilization storehouse connection roll squeezer and the first powder concentrator, roll squeezer is communicated with elevator, and elevator is communicated with the first powder concentrator; Second circulatory system comprises the second powder concentrator, ball mill, the 3rd powder concentrator, bag filter, dust-precipitator, two conveyers and elevator, the fines outlet of the second powder concentrator is communicated with warehouse for finished product, the coarse fodder outlet is communicated with ball mill, the fines outlet of ball mill is communicated with dust-precipitator, the below of coarse fodder outlet is conveyer, dust-precipitator is communicated with warehouse for finished product, conveyer is communicated with elevator, elevator is communicated with the 3rd powder concentrator, the 3rd powder concentrator coarse fodder outlet is communicated with ball mill, the fines outlet is communicated with bag filter, is conveyer below bag filter, and conveyer is communicated with warehouse for finished product.

2. cement combination grinding according to claim 1 system, is characterized in that, described the second powder concentrator is three separate type powder concentrators.

3. cement combination grinding according to claim 1 system, is characterized in that, described the first powder concentrator, the second powder concentrator and three powder concentrators of the 3rd powder concentrator select the powder precision grade from low to high.