CN203304053U - Cement grinding screen mesh - Google Patents
Cement grinding screen mesh Download PDFInfo
- Publication number
- CN203304053U CN203304053U CN2013202732541U CN201320273254U CN203304053U CN 203304053 U CN203304053 U CN 203304053U CN 2013202732541 U CN2013202732541 U CN 2013202732541U CN 201320273254 U CN201320273254 U CN 201320273254U CN 203304053 U CN203304053 U CN 203304053U
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- grating
- screen
- grinding
- screen cloth
- cement grinding
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- Crushing And Grinding (AREA)
Abstract
The utility model relates to a cement grinding screen mesh. A plurality of screen strips which are consistent in shape are arranged in parallel at intervals, consistent screen cuts are formed between every two screen strips, ribs are vertical to the screen strips and are fixed on the backs of the screen strips, and the screen strips are fixed to form the screen mesh with an integrated structure. The width of each screen cut of the cement grinding screen mesh provided by the utility model can be controlled within 1mm, so that particles with the sizes of larger than or equal to 1mm are prevented from entering a grinding cabin, and the grinding efficiency is greatly increased; and meanwhile, the aperture ratio of the screen mesh can be up to 20-45%, so that the passing efficiency of particles meeting the requirement for the particle size is greatly increased.
Description
Technical field
The utility model relates to a kind of screen cloth, particularly relates to a kind of screening screen cloth be applied on cement grinding.
Background technology
Cement grinding (comprising ore grinding, flyash grinding, slag milling and steel slag grinding etc.) is through ball mill broken, grinding repeatedly, until reach the process of qualified grain fineness by the material of suitable particles.Cement mill is a kind of Horizontal cylindrical whirligig, and by cylindrical shell, liner plate, partition panel, mainly hold axle, feedstock discharge unit and transmission device and form, in the process of material grinding in mill, fragmentation and grinding function are that the separation by the partition panel structure completes.
In mill, crushing function is generally completed in cracking cabin (I storehouse) by steel ball, in mill, grinding function is by forging or small ball (diameter≤18mm) complete, bulky grain becomes granule (diameter 1mm-2mm) and is shattering process, granule pulverize abrasive particle (specific area>=320m
2/ kg) be process of lapping.Therefore, the grinding process of material is combinations broken in ball mill and two processes of grinding.The steel ball of different-diameter or forging are for the particle acting of different-diameter, and efficiency also can be different.Therefore, strictly distinguish different particle diameters and carry out fragmentation and grinding, will greatly improve the service efficiency of grinding machine.The screening grinding develops according to this principle, and coarse granule sieves after fragmentation in the I storehouse, and the screening fine grained enters II, grind in the III storehouse, and defective particle returns to the I storehouse and again carries out fragmentation.
The sieve plate of tradition screening grinding is generally selected general steel plate, then punching press or cut out sieve aperture.Due to the restriction of process conditions, screen size is generally 2mm-5mm, and existing process conditions can not obtain the sieve aperture that is less than 2mm.But, for ball mill, should be that the particle that is less than 1mm enters and grinds storehouse and be only the situation that grinding efficiency is the highest.In addition, punching press or cutting sieve aperture must guarantee the bulk strength of material on steel plate, unrestrictedly perforate, and its percent opening (percent of pass) generally all≤15%, has just limited the handling capacity of material relatively.
Summary of the invention
The purpose of this utility model is to provide a kind of cement grinding screen cloth, to improve screening and the grinding efficiency of cement grinding.
For achieving the above object, cement grinding of the present utility model comprises with screen cloth:
The many gratings that shape is consistent, described grating equidistantly is arranged in parallel, between grating and grating, to form consistent sieve seam;
Be no less than the rib of, perpendicular to grating, be fixed on the back side of grating, described many gratings are fixed as to an overall structure.
After adopting said structure, can greatly dwindle the sieve seam width of screen cloth, being woven into sieve seam width is all size screen cloth of 0.1mm-1mm.
Further, can be set to inclined-plane at least one side of the grating of woven screen, between grating and grating, to form front openings, be less than the trapezoid sieve seam of backside openings.
Preferably, described grating is used the grating of cross section as isosceles trapezoid, between grating and grating, to form front openings, is less than the isosceles trapezoid sieve seam of backside openings.
Cement grinding of the present utility model, relatively has the following advantages with existing sieve plate owing to having adopted said structure with screen cloth.
1, adopt grating and the rib machinery of stainless steel material to be woven into the full wafer screen cloth, sieve seam width no longer is restricted, and the osculum seam footpath of screen cloth can be controlled in 1mm, and I knits out the screen cloth of sieve seam width 0.1mm, limited >=particle of 1mm enters and grinds storehouse, greatly improved grinding efficiency.
2, stainless steel and bead structures design have guaranteed the intensity of screen cloth, can use more elongated grating, work out finer and closely woven sieve seam, and the net hole rate of screen cloth of braiding can reach 20%-45%, has greatly improved the efficiency of passing through that meets the granularity requirements particle.
3, adopt special-shaped grating, the sieve seam import that makes to work out out screen cloth is little, outlet is large, has further improved the efficiency of passing through that meets the granularity requirements particle.
4, stainless steel has guaranteed the rigidity of screen material, and anti-wear performance also is improved simultaneously.
The accompanying drawing explanation
Fig. 1 is the structural representation of the utility model cement grinding with screen cloth.
Fig. 2 is the cross section structure figure of Fig. 1 screen cloth.
The specific embodiment
Cement grinding by the structure of screen cloth as shown in Figure 1 and Figure 2, consists of grating 1 and the rib 3 of stainless steel.Wherein the cross section of grating 1 is isosceles trapezoid, and the many long limits of grating 1 are that the back side equidistantly is arranged in parallel for positive, minor face.At least 2 ribs 3 are fixed on the back side of grating 1 perpendicular to grating 1, grating is fixed into to integrally-built screen cloth.Between grating and grating, form the sieve seam 2 of isosceles trapezoid, sieve seam 2 entrance width 1mm, exit width is greater than entrance width.
Above-mentioned screen cloth is applied to cement grinding process, adopts roll squeezer (closed-circuit system+ball mill (φ 3.8 * 13m) open systems of 1700mm * 1100mm).The domestic existing level of this system unit-hour output is 100-120t/h.After using above-mentioned screen cloth to replace original sieve plate, the unit-hour output stable yields, at 160-180t/h, is increased production 60% left and right, and result of use is remarkable.
Claims (4)
1. cement grinding screen cloth is characterized in that comprising:
The many gratings that shape is consistent, described grating equidistantly is arranged in parallel, between grating and grating, to form consistent sieve seam;
Be no less than the rib of, perpendicular to grating, be fixed on the back side of grating, described many gratings are fixed as to an overall structure.
2. cement grinding screen cloth according to claim 1, is characterized in that the width of described sieve seam is 0.1mm-1mm.
3. cement grinding screen cloth according to claim 1 and 2, at least one side that it is characterized in that described grating is inclined-plane, between grating and grating, to form front openings, is less than the trapezoid sieve seam of backside openings.
4. cement grinding screen cloth according to claim 3, the cross section that it is characterized in that described grating is isosceles trapezoid, between grating and grating, to form front openings, is less than the isosceles trapezoid sieve seam of backside openings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202732541U CN203304053U (en) | 2013-05-20 | 2013-05-20 | Cement grinding screen mesh |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013202732541U CN203304053U (en) | 2013-05-20 | 2013-05-20 | Cement grinding screen mesh |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203304053U true CN203304053U (en) | 2013-11-27 |
Family
ID=49610289
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013202732541U Expired - Lifetime CN203304053U (en) | 2013-05-20 | 2013-05-20 | Cement grinding screen mesh |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203304053U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115739616A (en) * | 2022-11-18 | 2023-03-07 | 唐山陆凯科技有限公司 | Vibration screening treatment device for coal dressing |
-
2013
- 2013-05-20 CN CN2013202732541U patent/CN203304053U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115739616A (en) * | 2022-11-18 | 2023-03-07 | 唐山陆凯科技有限公司 | Vibration screening treatment device for coal dressing |
| CN115739616B (en) * | 2022-11-18 | 2024-02-09 | 唐山陆凯科技有限公司 | Vibration screening treatment device for coal dressing |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131127 |