CN105645726A

CN105645726A - Paliform cathode presser

Info

Publication number: CN105645726A
Application number: CN201610144071.8A
Authority: CN
Inventors: 方世峰; 杨淑兵; 张宪如; 张慧
Original assignee: JIANGSU BAIXIN ENVIRONMENTAL ENGINEERING Co Ltd
Current assignee: JIANGSU BAIXIN ENVIRONMENTAL ENGINEERING Co Ltd
Priority date: 2016-03-15
Filing date: 2016-03-15
Publication date: 2016-06-08

Abstract

The invention discloses a paliform cathode presser set up with elongated bottom strips and ribs. The bottom strips that are spaced in parallel and equal in length are horizontally placed with a narrow surface facing up, the ribs are arranged transversely and sequentially on the bottom ribs that have flush ends to form a rectangular plane 0.06-0.10 m<2> in area. The ribs with a narrow surface facing down are fixedly connected with the facing-up narrow surfaces of the bottom strips, a gap is reserved in the top between every two adjacent ribs, and the gaps arranged in sequence form a wet dirt anti-overflow and sprinkle structure. The paliform cathode presser directly bears wet sludge under pressing, no filter strips of insulating material are used in separation so that voltage drop for electroosmosis is slight, energy consumption can be reduced by about 20%, more material can be distributed by the presser than the prior art at the premise of constant energy consumption, and press-dewatering efficiency can be increased by about 10%.

Description

Paliform cathode pressuring plate

Technical field

The present invention relates to the mechanical fitting of a kind of environmental protection equipment, in particular it relates to the cathode pressuring plate of lower crawler belt configuration in a kind of wet sludge anhydration equipment.

Background technology

When nominal situation, after sewage treatment plant's purified treatment, the wet moisture percentage in sewage sludge of residual is up to 80%��90%, does not far reach minimizing, innoxious and resource type treating target, it is necessary to make further press dewatering and just can obtain the mud cake that moisture content is slightly lower. Although existing multiple physics dewatering is easy, effectively, but still reach to less than desirable mummification index. In recent years, the industry introduces DC electric field in mechanical expression dehydration, utilizes electron stream to impact the wall of wet mud contained humidity daughter cell water, facilitates cellular water breaking cellular wall to overflow, to obtain desirable mummification mud cake. Because wet mud is as a form of gel, the pressure initial stage easily takes advantage of a situation trickling, and the wet mud overflowed necessarily reduces dewatering efficiency. For these realistic problems, prior art takes into full account when structural design, such as arranges filter bag up and down between crawler belt what pairing was pressed mutually, limits the trickling of wet mud with this and improves trickle problem. In prior art, most representational Chinese invention patent publication number CN102653488A, CN201180005854.3 and China Patent No. ZL201310281866, arrange filter bag between upper and lower crawler belt. Although the filter bag made of isolation material can solve the problem that the problems referred to above, but dramatically increases the voltage drop between upper and lower crawler belt in running, and the new problem that association press dewatering energy consumption is high.

Summary of the invention

Present invention is generally directed to prior art between upper and lower crawler belt, configure the problem that the newly-increased voltage drop of isolation material filter bag is bigger than normal, a kind of paliform cathode pressuring plate is proposed, this part is the applicator member directly facing wet mud of lower crawler belt configuration, also has filter bag effect simultaneously. On paliform cathode pressuring plate, preset uniform fine gap is excessive except effectively stoping wet mud, also drainage problem in wet sludge pressing process is solved, the most important thing is to adopt the voltage drop that the paliform cathode pressuring plate that conductive material makes produces in course of exerting pressure small, be conducive to improving wet sludge dewatering efficiency and reducing energy consumption.

The present invention is achieved through the following technical solutions technical goal.

Paliform cathode pressuring plate, it is by the end of strip is stupefied and the upper and lower dislocation lap joint of rib forms. It thes improvement is that: the stupefied cross section in the described end is bigger than rib, and shape of cross section is different, the isometric end of at least two parallel spaced-apart is stupefied to be kept flat upward with leptoprosopy, on the end that two ends flush, is stupefied by laterally equidistantly arrangement 7��15 rib form the rectangle plane of an area 0.06��0.10. Described rib leptoprosopy the leptoprosopy upward stupefied end of with down is fixing to be connected, end face reserving gaps C=0.2��0.6mm between adjacent rib, and it is excessive with trickle structure that the narrow slot being arranged in order constitutes the damp proof mud of paliform.

As further improvement project, the axis perpendicular of the stupefied axis in the described end and rib.

As further improvement project, the stupefied lateral cross section in the described end is the section bar of superposition shape on cuboid, and the lateral cross section of described rib is isosceles trapezoid, and stupefied and rib narrow hem width degree is 0.5��1.0mm at the end.

As further improvement project, the described end, is stupefied identical with the material of rib, is metal material.

As further improvement project, the described end is stupefied and rib is used that OCr18Ni9Ti rustless steel manufacture.

The present invention compared with prior art, has the positive effect that:

1, paliform cathode pressuring plate engraved structure is reasonable, make easily;

2, one along the narrow slot of hollow out on paliform cathode pressuring plate surface, wet mud can be stoped excessive, be conducive to again the water squeezed out to discharge;

3, the paliform cathode pressuring plate of metal material directly carries the wet mud being squeezed, and voltage drop is small, it is possible to decrease energy consumption about 20%, more cloth than prior art under the premise of same consumption energy, can improve press dewatering efficiency about 10%.

Accompanying drawing explanation

Fig. 1 is present configuration schematic perspective view.

Fig. 2 is the stupefied cross section enlarged diagram in the end.

Fig. 3 is rib cross section enlarged diagram.

Detailed description of the invention

Below according to accompanying drawing and in conjunction with the embodiments, the invention will be further described.

Paliform cathode pressuring plate shown in Fig. 1 is single-unit pressing plate, is the applicator member of DC electric field mud drying device, and it is placed in the upper surface of the every pitch chain plate of lower crawler belt, and the paliform cathode pressuring plate of link directly contacts with wet mud in expressing process.

Paliform cathode pressuring plate, it is formed lamellar fencing member by the end of strip stupefied 1 and rib about 2 dislocation lap joint. In order to reduce the voltage drop in electro-osmosis process, reducing energy consumption and improve dewatering efficiency, the end stupefied 1 and rib 2 are used that the good OCr18Ni9Ti rustless steel manufacture of electric conductivity. In this structure, stupefied 1 cross section in the end is superposition trapezoidal shape on cuboid, and the cross section of rib 2 is trapezoidal, and the lateral cross section of the present embodiment center rib 2 is isosceles trapezoid, the narrow hem width 1.0mm of the end stupefied 1 and rib 2. The present embodiment is applied 3 foundation stupefied 1,3 isometric ends stupefied 1 of parallel spaced-apart, keep flat upward with leptoprosopy, the end stupefied 1 that two ends flush, is formed a plane by laterally equidistant arrangement 10 rib 2, the present embodiment specification is the rectangle plane of 0.08, can meet the requirement that this specification cloth doses matches with squeeze force. In order to strengthen anti-overflow and trickle performance, the present invention adopts the pressing plate of fence structure, making formation hollow out at the end stupefied 1 being in the rib 2 on upper strata and lower floor, this fixed connection structure mainly has two technical characteristics, and one is that rib 2 the leptoprosopy stupefied end of with 1 leptoprosopy upward down connects. Two is that the axis of rib 2 is staggered with the axis perpendicular at the end stupefied 1.Additionally, end face reserving gaps C between adjacent rib 2, the present embodiment reserving gaps c=0.35mm, equidistantly forming narrow gap between 10 rib 2 of arrangement can stop wet mud excessive, the water also allowing for squeezing out is discharged, and the effect of filter bag can be played, it is ensured that press dewatering is smoothed out.

One aspect of the present invention accomplishes that structure expressing process stops the wet excessive problem of mud and improves trickle problem, omit filter bag on the other hand, eliminate unnecessary voltage drop, capable of reducing energy consumption about 20%, make under the premise of same consumption energy more cloth than prior art, dewatering efficiency about 10% can be improved.

Claims

1. a paliform cathode pressuring plate, it is made up of the end of strip stupefied (1) and rib (2) dislocation lap joint up and down; It is characterized in that: the cross section of the described end stupefied (1) is bigger than rib (2), and shape of cross section is different, the isometric end stupefied (1) of at least two parallel spaced-apart, keeps flat upward with leptoprosopy, is formed the rectangle plane of an area 0.06��0.10 by laterally equidistant arrangement 7��15 rib (2) at the end stupefied (1) that two ends flush; Described rib (2) the leptoprosopy stupefied end of with (1) leptoprosopy upward down is fixing to be connected, end face reserving gaps C=0.2��0.6mm between adjacent rib (2), and it is excessive with trickle structure that the narrow slot being arranged in order constitutes the damp proof mud of paliform.

2. paliform cathode pressuring plate according to claim 1, it is characterised in that: overlap joint arranges by the axis perpendicular of the axis at the end stupefied (1) with rib (2).

3. paliform cathode pressuring plate according to claim 1, it is characterized in that: the lateral cross section of the described end stupefied (1) is superposition trapezoidal shape on cuboid, the lateral cross section at rib of the described end (2) is isosceles trapezoid, and the narrow hem width degree of the end stupefied (1) and rib (2) is 0.5��1.0mm.

4. paliform cathode pressuring plate according to claim 1, it is characterised in that: the described end stupefied (1) is identical with the material of rib (2), is metal material.

5. the paliform cathode pressuring plate according to claim 1 or 4, it is characterised in that: the described end stupefied (1) and rib (2) are used that OCr18Ni9Ti rustless steel manufacture.