阅读说明：本技术 一种双螺旋式进料夹布器及压滤装置 (Double-helix feeding cloth clamping device and filter pressing device ) 是由 曹江林 戴晓虎 吴冰 何群彪 庄思伟 墨子卉 袁建华 于 2020-12-30 设计创作，主要内容包括：本发明涉及一种双螺旋式进料夹布器及压滤装置。在进料夹布器本体的中心设置有进泥第一通道、在进料夹布器本体的一侧盘面上设置有用于将污泥从进泥第一通道导入滤板虑腔的进泥第二通道,进泥第二通道呈螺旋状分布,在进泥第一通道的内壁上设置有呈螺旋状的导流加强筋。本发明在进泥第一通道内壁设置螺旋型导流加强筋,减小了对旋转流动污泥的阻碍作用,保障了污泥以一定的离心力前进,螺旋状分布的进泥第二通道设置符合污泥由进泥第一通道离心喷入进泥第二通道的运动轨迹,最大程度减小了对污泥进入的阻力,强化了污泥进入板框压滤室的速度和布泥均匀性,有效避免了板框压滤过程的中泥饼含水率不均匀的“夹生”问题,杜绝了“爆板”现象的发生。(The invention relates to a double-helix feeding cloth clamping device and a filter pressing device. The mud feeding device comprises a feeding cloth clamping device body and is characterized in that a mud feeding first channel is arranged in the center of the feeding cloth clamping device body, a mud feeding second channel used for guiding mud into a filter plate filtering cavity from the mud feeding first channel is arranged on a disc surface on one side of the feeding cloth clamping device body, the mud feeding second channel is distributed in a spiral shape, and spiral flow guide reinforcing ribs are arranged on the inner wall of the mud feeding first channel. According to the invention, the spiral flow guide reinforcing ribs are arranged on the inner wall of the sludge inlet first channel, so that the blocking effect on the rotating flowing sludge is reduced, the sludge is ensured to advance at a certain centrifugal force, the spirally distributed sludge inlet second channel is arranged to accord with the movement track of the sludge centrifugally sprayed into the sludge inlet second channel from the sludge inlet first channel, the resistance to the sludge entering is reduced to the maximum extent, the speed of the sludge entering the plate frame filter pressing chamber and the sludge distribution uniformity are enhanced, the problem of 'clamping' of uneven water content of sludge cakes in the plate frame filter pressing process is effectively avoided, and the phenomenon of 'plate explosion' is avoided.)

1. The utility model provides a two spiral formula feeding presss from both sides cloth ware, its characterized in that presss from both sides cloth ware body (1) including the feeding, is provided with into mud first passageway (2) at the center of feeding presss from both sides cloth ware body (1), is provided with on a side quotation of feeding presss from both sides cloth ware body (1) and is used for advancing mud second passageway (3) with mud from advancing mud first passageway (2) leading-in filter plate worry chamber, it is the heliciform and distributes to advance mud second passageway (3) be provided with on the inner wall of advancing mud first passageway (2) and is heliciform water conservancy diversion strengthening rib (4).

2. The double-screw feeding cloth clamp according to claim 1, characterized in that the number of the flow guiding reinforcing ribs (4) arranged on the inner wall of the mud feeding first channel (2) is 1-10.

3. The double-helix feeding cloth clamp according to claim 2, characterized in that 6 diversion reinforcing ribs (4) are symmetrically arranged on the inner wall of the mud feeding first channel (2).

4. A double-screw feed cloth clamping device according to claim 1, characterized in that the number of the flow guiding reinforcing ribs (4) is the same as the number of the mud feeding second channels (3).

5. The double-helix feeding cloth clamp according to claim 1, characterized in that the angle between the flow guiding reinforcing ribs (4) and the central axis of the mud feeding first channel (2) is 0.1-45 °.

6. The double-helix feeding cloth clamp according to claim 1, characterized in that the mud inlet second channels (3) are spirally distributed around the tangent circle of the mud inlet first channel (2), and 2-10 mud inlet second channels (3) are arranged.

7. A double screw feed cloth gripper according to claim 6, characterised in that 6 second sludge inlet channels (3) are provided.

8. A double screw feed cloth gripper according to claim 1, characterised in that one side wall of the second sludge inlet channel (3) is spread in the tangential direction of the tangent circle of the first sludge inlet channel (2).

9. A double screw feed cloth gripper according to claim 1, characterised in that the angle between the two side walls of the second sludge inlet channel (3) is 0-90 °.

10. A filter press apparatus comprising a filter plate and a double helix feed cloth clamp according to any one of claims 1 to 9, said double helix feed cloth clamp being mounted centrally on the filter plate.

Technical Field

The invention relates to sludge treatment equipment, in particular to a double-helix feeding cloth clamping device and a filter pressing device.

Background

Sludge dewatering is an important part of the sludge treatment process and is a precondition for subsequent sludge treatment and resource utilization, and sludge treatment plants usually use a mechanical dewatering method for sludge dewatering. Common mechanical dehydration methods mainly include belt filtration, vacuum filtration, plate-and-frame filter pressing, centrifugation, and the like. The plate-and-frame filter pressing method has the characteristics of good dehydration effect, simple structure, easy operation, reliable operation, lower cost and the like, and is widely applied.

When using plate and frame filter press to carry out the sludge dewatering operation, mud at first with the rotatory first passageway that gets into cloth holder of certain velocity of flow under the high-pressure pump effect, the strengthening rib often with cylindrical pipeline parallel arrangement in the first passageway of traditional cloth holder, this must cause great resistance to the mud that the rotation is advanced. On the other hand, tradition press from both sides cloth ware side quotation second passageway and radially distribute along pressing from both sides cloth ware terminal surface, and the bellying between the second passageway is designed for fan ring shape usually, and when the mud that gos forward in the first passageway reachs the entrance of pressing from both sides cloth ware second passageway, mud receives fan ring shape and blocks, produces great resistance, has reduced the speed that mud pours into the pressure filter chamber into, is unfavorable for the evenly distributed of mud, leads to the inhomogeneous "double-layered living" phenomenon of mud dehydration cake moisture content easily. If the sludge entering the filter-pressing chamber reaches the whole chamber in time, the sludge is locally dehydrated and consolidated, the subsequent sludge entering is influenced, a local cavity is formed, and the condition of plate explosion even occurs in the filter-pressing dehydration process.

Chinese patent publication No. CN 201342275Y discloses a sludge distributor of a plate-and-frame filter press and a filter press device, wherein a first through hole for injecting sludge is provided at the center of the sludge distributor of the plate-and-frame filter press, a diversion trench for guiding sludge from the first through hole to a filter chamber of a filter plate is provided at one end surface of the sludge distributor along the radial direction, two side walls of the diversion trench are spiral, and two side walls of a second channel diversion trench are spiral, so that sludge can be uniformly distributed on the filter plate.

Disclosure of Invention

The invention aims to provide a double-helix feeding cloth clamping device and a filter pressing device, which are used for improving the sludge feeding resistance and the sludge distribution mode in a plate frame filter pressing cavity, improving the sludge distribution uniformity, avoiding the phenomena of ' clamping and even ' plate explosion ' in the plate frame filter pressing process, reducing the energy consumption and improving the sludge dewatering stability.

The purpose of the invention can be realized by the following technical scheme:

the invention firstly provides a double-helix feeding cloth clamp, which comprises a feeding cloth clamp body, wherein a first sludge inlet channel is arranged at the center of the feeding cloth clamp body, a second sludge inlet channel for guiding sludge into a filter plate filtering cavity from the first sludge inlet channel is arranged on the disc surface on one side of the feeding cloth clamp body, the second sludge inlet channel is spirally distributed, and spiral flow guide reinforcing ribs are arranged on the inner wall of the first sludge inlet channel.

In one embodiment of the invention, 1-10 flow guide reinforcing ribs are arranged on the inner wall of the sludge inlet first channel.

In one embodiment of the invention, 1-8 flow guide reinforcing ribs are arranged on the inner wall of the sludge inlet first channel.

In a preferred embodiment of the invention, 6 flow guide reinforcing ribs are uniformly and symmetrically arranged on the inner wall of the sludge inlet first channel.

In an embodiment of the invention, the number of the flow guide reinforcing ribs may be the same as the number of the mud inlet second channels.

In an embodiment of the present invention, the position of the guide reinforcing ribs at the sludge inlet second channel may be consistent with the sludge inlet second channel, but is not limited thereto.

In one embodiment of the invention, the included angle between the flow guide reinforcing ribs and the central axis direction of the sludge inlet first channel is 0.1-45 degrees. The flow guide reinforcing ribs on the inner wall of the sludge inlet first channel are spirally arranged, the spiral direction is consistent with the rotation direction of the sludge pumped into the sludge inlet first channel, and the specific deflection degree is selected between 0.1 and 45 degrees according to the flow rate and the rotation condition of the sludge.

In one embodiment of the invention, the mud inlet second channels are spirally distributed around the tangent circle of the mud inlet first channel, and 2-10 mud inlet second channels are arranged.

In a preferred embodiment of the present invention, 6 sludge inlet second passages are provided.

In one embodiment of the invention, one side wall of the mud feeding second channel is expanded along the tangential direction of the tangent circle of the mud feeding first channel.

In one embodiment of the invention, the included angle between the two side walls of the mud inlet second channel is 0-90 degrees.

In one embodiment of the present invention, the double-screw feeding cloth clamping device is made of hard plastic or metal material, the hard plastic may be made of high-strength polyethylene, polypropylene, or other plastics, and the metal material may be made of corrosion-resistant stainless steel material.

The invention also provides a filter pressing device which comprises a filter plate and the double-spiral feeding cloth clamping device, wherein the double-spiral feeding cloth clamping device is arranged at the central position of the filter plate.

When the double-helix feeding cloth clamp is used, the dehydration process is as follows: mud is rotatory to get into the first passageway of mud that advances of double-layered cloth ware with certain velocity of flow under the high-pressure pump effect, obtains great centrifugal force under the first passageway inner wall spiral water conservancy diversion strengthening rib effect of mud advances to less power loss gets into fast, when mud reachs into mud second passageway entrance, under the centrifugal force effect, outwards sprays along advancing mud first passageway tangent plane circle tangential direction. The side wall of the sludge inlet second channel is arranged along the tangent direction of the tangent plane circle of the sludge inlet first channel, so that the resistance of the sludge entering the plate frame filter-pressing chamber through the sludge inlet second channel is greatly reduced, the spraying distance of the sludge in the plate frame filter-pressing chamber is increased, and the distribution uniformity of the sludge is effectively improved.

Compared with the prior art, the invention has the following advantages and beneficial effects:

according to the invention, the spiral flow guide reinforcing ribs are arranged on the inner wall of the sludge inlet first channel, so that the blocking effect on the rotating flowing sludge is reduced, the sludge is ensured to advance at a certain centrifugal force, the spirally distributed sludge inlet second channel is arranged to accord with the movement track of the sludge centrifugally sprayed into the sludge inlet second channel from the sludge inlet first channel, the resistance to the sludge entering is reduced to the maximum extent, the speed of the sludge entering the plate frame filter pressing chamber and the sludge distribution uniformity are enhanced, the problem of 'clamping' of uneven water content of sludge cakes in the plate frame filter pressing process is effectively avoided, and the phenomenon of 'plate explosion' is avoided.

Drawings

Fig. 1 is a schematic front view of a double-spiral feeding cloth clamper in embodiment 1 of the invention;

fig. 2 is a schematic cross-sectional view of a double-spiral feeding cloth clamper in embodiment 1 of the invention.

Detailed Description

The invention is described in detail below with reference to the figures and specific embodiments.

Examples

Referring to fig. 1 and 2, this embodiment provides a double helix formula feeding presss from both sides cloth ware, including feeding presss from both sides cloth ware body 1, is provided with into mud first passageway 2 at the center of feeding presss from both sides cloth ware body 1, is provided with on a side quotation of feeding presss from both sides cloth ware body 1 and is used for the mud second passageway 3 that advances that is used for considering the chamber with mud from advancing mud first passageway 2 leading-in filter plate, it is the heliciform and distributes to advance mud second passageway 3 be provided with on the inner wall of advancing mud first passageway 2 and be spiral helicine water conservancy diversion strengthening rib 4.

In this embodiment, 6 flow guide reinforcing ribs 4 are uniformly and symmetrically arranged on the inner wall of the sludge inlet first channel 2.

In this embodiment, it is the heliciform around 2 tangent planes circles of the first passageway of mud of advancing to advance mud second passageway 3 and distributes, it sets up 6 to advance mud second passageway 3.

In this embodiment, the included angle between the diversion reinforcing ribs 4 and the central axis direction of the first sludge inlet channel 2 is 0.1-45 °. According to the invention, the flow guide reinforcing ribs 4 on the inner wall of the sludge inlet first channel 2 are spirally arranged, the spiral direction is consistent with the rotation direction of the sludge pumped into the sludge inlet first channel 2, and the specific deflection degree is selected between 0.1-45 degrees according to the flow rate and the rotation condition of the sludge.

In this embodiment, the tangent plane of the second mud inlet channel 3 comprises a first side wall 5 and a second side wall 6, the first side wall 5 is unfolded along the tangential direction of the tangent plane circle of the first mud inlet channel 2, and the included angle between the trend of the first side wall 5 and the trend of the second side wall 6 can be adjusted between 0 and 90 degrees. The distance between the first side wall 5 and the second side wall 6 is symmetrically adjusted according to the number of the mud inlet second channels 3.

In this embodiment, double helix formula feeding presss from both sides cloth ware is rigid plastic or metal material, rigid plastic can adopt plastics such as high-strength polyethylene, polypropylene, the metal material can select corrosion-resistant stainless steel material for use.

The embodiment also provides a filter pressing device, which comprises a filter plate and the double-spiral feeding cloth clamping device, wherein the double-spiral feeding cloth clamping device is arranged at the central position of the filter plate.

When the double-spiral feeding cloth clamping device of the embodiment is used, the dewatering process is as follows: mud is rotatory to get into the first passageway of mud that advances of double-layered cloth ware with certain velocity of flow under the high-pressure pump effect, obtains great centrifugal force under the first passageway inner wall spiral water conservancy diversion strengthening rib effect of mud advances to less power loss gets into fast, when mud reachs into mud second passageway entrance, under the centrifugal force effect, outwards sprays along advancing mud first passageway tangent plane circle tangential direction. The side wall of the sludge inlet second channel is arranged along the tangent direction of the tangent plane circle of the sludge inlet first channel, so that the resistance of the sludge entering the plate frame filter-pressing chamber through the sludge inlet second channel is greatly reduced, the spraying distance of the sludge in the plate frame filter-pressing chamber is increased, and the distribution uniformity of the sludge is effectively improved.

The embodiments described above are described to facilitate an understanding and use of the invention by those skilled in the art. It will be readily apparent to those skilled in the art that various modifications to these embodiments may be made, and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above embodiments, and those skilled in the art should make improvements and modifications within the scope of the present invention based on the disclosure of the present invention.