CN216420137U

CN216420137U - Three-plastid high-frequency desliming sieve plate

Info

Publication number: CN216420137U
Application number: CN202122990152.9U
Authority: CN
Inventors: 房鑫; 王明全; 李胜绪
Original assignee: Shanghai Datun Energy Resources Co Ltd Jiangsu Branch
Current assignee: Shanghai Datun Energy Resources Co Ltd Jiangsu Branch
Priority date: 2021-12-01
Filing date: 2021-12-01
Publication date: 2022-05-03
Anticipated expiration: 2031-12-01

Abstract

The utility model discloses a three plastid high frequency desliming sieve plates, include: sieve, oblique strip and angle bar, the sieve divide into two-layer from top to bottom, the sieve on upper strata is 1400X 1300 mm's stainless steel whole sieve, lower floor's sieve is 1400X 1900 mm's stainless steel whole sieve, the screen cut of the sieve on upper strata and lower floor's sieve is 0.35mm, the sieve on upper strata and the equal vertical of the screen frame of lower floor's sieve, the sieve compresses tightly through the oblique strip and fixes in the middle of the angle bar, the daily maintenance volume of 338#, 340# sieve that has significantly reduced has alleviateed workman's intensity of labour, practiced thrift the cost of labor, the economic benefits of coal preparation plant has been improved.

Description

Three-plastid high-frequency desliming sieve plate

Technical Field

The utility model relates to a sieve, specifically a three plastid high frequency desliming sieve plates.

Background

338# and 340# sieve models are DZSN2831 triploid high-frequency desliming sieves commonly used in coal mines, in the past, fine mesh soft sieve plates are used for dewatering all the time, the mesh sieve plates are found to be extremely easy to damage in production, sieve plates cannot be worn out by one sieve plate for many months, the dewatering effect is poor in production, the material running is serious, the recovery rate of clean coal slime is poor, the use effect is unsatisfactory after temporary repair, the labor intensity of maintenance personnel is increased by frequently replacing the sieve plates, the extra cost caused by material replacement is increased at the same time, and the use burden of the 342# centrifugal machine is increased.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a three plastid high frequency desliming sieve plates, the daily maintenance volume of 338#, 340# sieve that has significantly reduced has alleviateed workman's intensity of labour, has practiced thrift the cost of labor, has improved the economic benefits of coal preparation factory.

In order to achieve the above object, the utility model provides a following technical scheme: a three-mass high frequency desliming screen deck, comprising: the novel stainless steel screen plate comprises screen plates, oblique strips and angle iron, wherein the screen plates are divided into an upper layer and a lower layer, the upper layer screen plate is a 1400X 1300mm stainless steel whole screen plate, the lower layer screen plate is a 1400X 1900mm stainless steel whole screen plate, screen gaps of the upper layer screen plate and the lower layer screen plate are 0.35mm, the upper layer screen plate and the lower layer screen plate are vertical, and the screen plates are pressed and fixed in the middle of the angle iron through the oblique strips.

Preferably, the upper and lower layers of the sieve plates are in a step shape.

Preferably, the 150mm position of sieve plate surface welds the angle bar parallel with the sieve plate.

Preferably, the sieve plate is pressed by matching oblique bars with angle irons.

Preferably, the mesh number of the upper-layer sieve plate of the sieve plate is 20-30 meshes, and the mesh number of the lower-layer sieve plate is 5-10 meshes.

Preferably, the mesh number of the upper layer sieve plate of the sieve plates is 20 meshes, and the mesh number of the lower layer sieve plate is 6 meshes.

The utility model discloses and traditional sieve relative ratio, this sieve will prolong 4-5 times than netted sieve in the past on the change cycle, but 4 ten thousand yuan of material saving cost one year, 338#, behind this sieve of 340# application, the daily maintenance volume of 338#, 340# sieve that has significantly reduced, workman's intensity of labour has been alleviateed, the cost of labor has been practiced thrift, the economic benefits of coal preparation factory has been improved, can make the sieve of various sizes according to actual needs, application scope is wide, be fit for on a large scale popularization and use.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the usage state of the present invention;

in the figure: 1. sieve plate, 2, oblique strips, 3 and angle iron.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1 and fig. 2, the present invention provides a technical solution: a three-mass high frequency desliming screen deck, comprising: the screen plate 1 is divided into an upper layer and a lower layer, the upper layer screen plate is a 1400X 1300mm stainless steel whole screen plate, the lower layer screen plate is a 1400X 1900mm stainless steel whole screen plate, the screen gaps of the upper layer screen plate and the lower layer screen plate are 0.35mm, the screen strips of the upper layer screen plate and the lower layer screen plate are vertical and can be consistent with the material flowing direction, the screen plate 1 is tightly pressed and fixed in the middle of the angle iron 3 through the oblique strips 2, the upper layer screen plate and the lower layer screen plate of the screen plate 1 are in a ladder shape, coarse clean coal of incoming materials is firstly screened by the upper layer small screen plate, screen materials are blanked to the lower layer large screen plate, the angle iron 3 parallel to the screen plate 1 is welded at the position of 150mm on the surface of the screen plate 1, the screen plate 1 is tightly pressed by the oblique strips 2 of polyurethane in cooperation with the angle iron 3, the mesh number of the upper layer screen plate 1 is 20-30 meshes, the mesh number of the lower layer screen plate 1 is 5-10 meshes, when the screen strip direction is vertical, the sieve bar vertical type material screening device comprises a sieve plate 1, a lower sieve plate, a sieve strip, a feeding direction, a sieve plate and a screening efficiency, wherein the sieve plate 1 is arranged on the upper sieve plate, the sieve plate is 20-30 meshes in the feeding direction, the sieve plate is 5-10 meshes in the lower sieve plate, the screening efficiency is high and reaches 92.38% through tests, when the sieve strip is vertical, the feeding direction is the same, the sieve plate 1 is arranged on the upper sieve plate, the sieve plate is 20-30 meshes in the upper sieve plate, and the sieve plate is 5-10 meshes in the lower sieve plate.

The utility model discloses it is obvious to use the effect that the ash falls in dehydration through a period, and the fine mud of high ash has become the undersize thing through the high-frequency vibration of upper and lower two-layer sieve with a large amount of moisture. The cleaned coal mud exceeding 0.35mm becomes oversize material, because upper and lower two-layer sieve plate is in intact state all the time, the phenomenon of cleaned coal mud volume of running has been avoided, the yield of cleaned coal recovery has been promoted, 338#, 340# oversize material is the incoming material of 342# vertical centrifuge simultaneously, 338#, 340# oversize cleaned coal mud moisture's reduction, make 342# vertical centrifuge incoming material moisture reduce, the emergence 338# of centrifuge water phenomenon of running when having stopped emergency stop, 340# dehydration ash-reducing effect is obvious, through the ash content detection to 338#, 340# unloading system 342# centrifuge, the ash content is reduced to 8.5% by original 10.6%. The ash content is reduced by 2.1%, and the integral clean coal ash content of the coal preparation plant is reduced by 0.1% according to the proportion statistics of the clean coal slime on the integral clean coal ash content of the coal preparation plant, so that in the heavy-medium washing process, the clean coal yield is improved by 0.3%, the annual clean coal yield is improved by 9000 tons calculated by the washing amount of 300 ten thousand tons of raw coal in the coal preparation year, and the average yield per ton of clean coal sold externally is 950 yuan.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A three-mass high frequency desliming screen deck, comprising: sieve (1), oblique strip (2) and angle bar (3), its characterized in that, sieve (1) divide into two-layer from top to bottom, the sieve on upper strata is 1400X 1300 mm's the whole sieve of stainless steel, the sieve on lower floor is 1400X 1900 mm's the whole sieve of stainless steel, the sieve seam of the sieve on upper strata and lower floor's sieve is 0.35mm, the sieve on upper strata and the sieve strip of lower floor's sieve are all vertical, sieve (1) compresses tightly through oblique strip (2) and fixes in the middle of angle bar (3).

2. The three-mass high-frequency desliming screen plate of claim 1, wherein: the upper and lower layers of the sieve plates (1) are in a step shape.

3. The three-mass high-frequency desliming screen plate of claim 1, wherein: and an angle iron (3) parallel to the sieve plate (1) is welded at the position of 150mm on the surface of the sieve plate (1).

4. The three-mass high-frequency desliming screen plate of claim 1, wherein: the sieve plate (1) is pressed tightly by the inclined bars (2) in cooperation with the angle iron (3).

5. The three-mass high-frequency desliming screen plate of claim 1, wherein: the mesh number of the upper layer sieve plate of the sieve plate (1) is 20-30 meshes, and the mesh number of the lower layer sieve plate is 5-10 meshes.

6. A three-mass high-frequency desliming screen deck according to claim 5, wherein: the mesh number of the upper layer sieve plate of the sieve plate (1) is 20 meshes, and the mesh number of the lower layer sieve plate is 6 meshes.