CN203678682U

CN203678682U - Open circuit cement grinding mill central sieve plate

Info

Publication number: CN203678682U
Application number: CN201420020173.5U
Authority: CN
Inventors: 杨勇正; 冯林杰; 张宏伟; 周转正; 王晓兵; 闫奇山; 潘向平
Original assignee: Tianrui Group Cement Co Ltd
Current assignee: Tianrui Group Cement Co Ltd
Priority date: 2014-01-14
Filing date: 2014-01-14
Publication date: 2014-07-02
Anticipated expiration: 2024-01-14

Abstract

An open circuit cement grinding mill central sieve plate comprises a sieve plate body. The sieve plate body comprises a first part and a second part. The first part and the second part can be assembled in a welding mode along welding lines and are both semi-circular plate-shaped components. Taper holes are evenly distributed in the first part and the second part. Clearance between taper holes is 4.5-5.5mm. Two vertical taper partition plates are evenly distributed on the plate face of the first part and the plate face of the second part respectively. The two vertical taper hole partition plates separate the taper holes on each part into three parts. The open circuit cement grinding mill central sieve plate comprises the first part and the second part. At installation time, the first part and the second part are assembled in a butt joint mode and then are welded, so that installation is convenient and quick, and time is saved. The open circuit cement grinding mill central sieve plate is bold and exquisite in conception, increases the ventilation area in a mill through changing the structure of the central sieve plate, is capable of adapting to changes of breed structures of materials, small in investment, and quick in wind effect, well solves the difficult problems in production, and creates great economic benefits for companies.

Description

A kind of open circuit cement grinding mill center sieve plate

Technical field

The utility model relates to a kind of sieve plate, specifically a kind of improved open circuit cement grinding mill center sieve plate.

Background technology

Under normal circumstances, the raw material of manufacture of cement is grog, flyash, the plaster of paris and slag, but some Cement Co., Ltds often ran into as the flyash composite material in short supply of composite material and can only add the price of row outside a large amount of power plant at the slag of 40 yuan of left and right in period cement busy season.Along with the mix ratio of slag progressively strengthens, add use desulfurated plaster.Grinding machine problem in production run is more and more serious; outstanding behaviours is that unit-hour output significantly declines; drop to 90t/h by 120t/h; grinding machine frequently occurs that bistrique tells material; Er Sancang center sieve plate is easily stuck with paste clogging; have no alternative but shut down into mill processing, production scene chaotic state in which corrupt practices prevail, operation and post personnel suffer untold misery.When serious, will stop mill strike sieve plate every day, within the most serious one day, strikes 3 times, produces and enter mix.Want to address this problem, primary is to increase partition panel draught area; Transform partition panel, the structure of necessary change center sieve plate; The sieve plate that Yuan Mo center sieve plate is disposable casting forming, which is provided with diameter 1050m lattice structure, the wide 6mm of grid distance, its available ventilation area is its gross area 30%, have unavoidably steel and forge and be clipped in grid seams and be in operation, further reduced its punishment in advance and draught area, if material is sticky wet, center grate plate draught area reduces once again even and can complete and block, thereby causes grinding machine discharging to reduce or not discharging; If this problem can not solve for a long time, certainly will, by having a strong impact on output and the sale of cement, bring huge economic loss to company.

Utility model content

The utility model object is the deficiency for solving the problems of the technologies described above, and a kind of improved open circuit cement grinding mill center sieve plate is provided, and its available ventilation area reaches 65% of the gross area, has avoided steel to forge completely and has been mingled with blockage problem.

The utility model for solving the problems of the technologies described above adopted technical scheme is:

A kind of open circuit cement grinding mill center sieve plate, comprise sieve plate body, sieve plate body comprises can be along the parts I of sealing wire welding assembly and parts II, parts I and parts II are semicircular tabular component, in parts I and parts II, be evenly distributed with taper hole, the gap between taper hole is 4.5-5.5mm, on the plate face of described parts I and parts II, be distributed with two vertical taper hole dividing plates, the taper hole on each parts is divided into three parts by two vertical taper hole dividing plates.

The parts I that described two vertical taper hole dividing plates are divided into and three part areas of parts II all equate.

The thickness of described sieve plate body is 7-9mm.

The width of described vertical taper hole dividing plate is 18-22mm.

The large bore dia of described taper hole is 9-11 mm.

Beneficial effect is:

The utility model open circuit cement grinding mill center sieve plate, comprises parts I and parts II two parts, when installation, first its docking is loaded onto, and then to its welding, it is comparatively convenient to install, and saves time; In parts I and parts II, be equipped with multiple taper holes and less taper hole dividing plate, strengthened available ventilation area, making available ventilation area is 65% of the gross area, has increased more than one times than in the past, and many taper holes structure has also avoided steel forging to be mingled with blockage problem completely simultaneously.The Shi Mo center that the arranges sieve plate of taper hole dividing plate, in strengthening draught area, ensures that it is firm, durability.

The utility model open circuit cement grinding mill center sieve plate, occurs that bistrique tells material situation seldom again, has thoroughly solved the problem of frequently stopping mill and strike sieve plate processing, having reduced the probability that occurs full mill phenomenon, and cement occurs sticking with paste ball and also greatly reduces; Cross grinding phenomenon and also obtained good improvement, in cement granules, the following granule content of 3um drops to 15% by original 22%.The utility model open circuit cement grinding mill center sieve plate effectively improves the operating mode of grinding machine, improves worker's working environment, has reduced worker's labour intensity.This technical conceive is courageously ingenious, increases mill inner ventilation area by the structure that changes center sieve plate, adapts to the variation of material breed structure, invests littlely, and wind effect is fast, has solved preferably the difficult problem in producing, for company has created huge economic benefit.

Brief description of the drawings

Fig. 1 is the structural representation of the utility model open circuit cement grinding mill center sieve plate;

Fig. 2 is the structural representation of the parts I 11 of the utility model open circuit cement grinding mill center sieve plate;

Fig. 3 is the structural representation of the parts II 12 of the utility model open circuit cement grinding mill center sieve plate;

In figure, mark is: 1, sieve plate body, 11, parts I, 12, parts II, 13, taper hole, 14, sealing wire, 15, taper hole dividing plate.

Detailed description of the invention

A kind of open circuit cement grinding mill center sieve plate as shown in Figure 1, 2, 3, comprise sieve plate body 1, sieve plate body 1 comprises can be along the parts I 11 of sealing wire 14 welding assemblies and parts II 12, parts I 11 and parts II 12 are semicircular tabular component, in parts I 11 and parts II 12, be evenly distributed with taper hole 13, gap between taper hole 13 is 4.5-5.5mm, on the plate face of described parts I 11 and parts II 12, be distributed with 15, two vertical taper hole dividing plates 15 of two vertical taper hole dividing plates the taper hole on each parts is divided into three parts.

The parts I 11 that described two vertical taper hole dividing plates 15 are divided into and three part areas of parts II 12 all equate.

The thickness of described sieve plate body 1 is 7-9mm.

The width of described vertical taper hole dividing plate 15 is 18-22mm.

The large bore dia of described taper hole 13 is 9-11 mm.

The utility model open circuit cement grinding mill center sieve plate, when on-the-spot installation, first installs, then parts I 11 and parts II 12 is docked to assembly welding, then uses; In use procedure, the aperture of the taper hole of material from the sieve plate of open circuit cement grinding mill center enters, and goes out from the macropore of taper hole.

Claims

1. an open circuit cement grinding mill center sieve plate, comprise sieve plate body (1), it is characterized in that: sieve plate body (1) comprises can be along the parts I (11) of sealing wire (14) welding assembly and parts II (12), parts I (11) and parts II (12) are semicircular tabular component, in parts I (11) and parts II (12), be evenly distributed with taper hole (13), gap between taper hole (13) is 4.5-5.5mm, on the plate face of described parts I (11) and parts II (12), be distributed with two vertical taper hole dividing plates (15), article two, the taper hole on each parts is divided into three parts by vertical taper hole dividing plate (15).

2. open circuit cement grinding mill as claimed in claim 1 center sieve plate, is characterized in that: the parts I (11) that described two vertical taper hole dividing plates (15) are divided into and three part areas of parts II (12) all equate.

3. as the open circuit cement grinding mill center sieve plate of claim 1-2 as described in one of them, it is characterized in that: the thickness of described sieve plate body (1) is 7-9mm.

4. as the open circuit cement grinding mill center sieve plate of claim 1-2 as described in one of them, it is characterized in that: the width of described vertical taper hole dividing plate (15) is 18-22mm.

5. as the open circuit cement grinding mill center sieve plate of claim 1-2 as described in one of them, it is characterized in that: the large bore dia of described taper hole (13) is 9-11 mm.