CN212631920U

CN212631920U - Novel ceramic filter plate

Info

Publication number: CN212631920U
Application number: CN202021726117.5U
Authority: CN
Inventors: 张钟鸣; 任巍; 牛刚; 刘增辉; 高源�
Original assignee: Yantai Hejing Ceramic New Materials Co ltd
Current assignee: Yantai Hejing Ceramic New Materials Co ltd
Priority date: 2020-08-18
Filing date: 2020-08-18
Publication date: 2021-03-02
Anticipated expiration: 2030-08-18

Abstract

The utility model relates to a novel ceramic filter belongs to ceramic filter technical field, evenly is equipped with a plurality of upper hole and lower hole on the filter, and upper hole and lower hole are partly misplaced and are aligned, filter and upper hole and lower hole integrated into one piece, through upper hole and lower hole about partly misplace and align the effectual phenomenon of breathing in of having solved, ceramic filter surface course fracture when having avoided the sintering problem that produces the crackle.

Description

Novel ceramic filter plate

Technical Field

The utility model relates to a novel ceramic filter and preparation method thereof, which belongs to the technical field of ceramic filters.

Background

Ceramic vacuum filters are a vital device for pulp separation, and ceramic filter plates are an indispensable part of the filters. The ceramic filter mainly depends on the pressure difference between the inside and the outside of the filter medium to suck water through micropores of the filter medium, and slag is adsorbed on the surface of the filter medium to form a filter cake, so that the requirement of solid-liquid separation is met. When the equipment runs, the vacuum pump needs to meet the requirement of 'water absorption and no air suction' on the filter medium, so that the effect of the filter medium is more remarkable.

The constitution mode of present ceramic filter is base plate + coating + surface course, and filterable active layer (surface course) only has the millimeter, in order to reach the maximize of output, utilizes high-power vacuum pump to carry out the suction filtration, leads to the produced capillary force of active surface course to be less than the suction power, the phenomenon of breathing in appears, makes the vacuum pump do work and breathes in, extravagant energy. The thickening of the surface layer on the substrate causes the shrinkage of the substrate and the surface layer to be inconsistent, so that cracks are generated, and the surface layer of the ceramic plate is cracked during sintering. In order to solve the problem, the combination of a new process and new slurry is adopted, so that the strength of the blank can be ensured while the thickness of the surface layer is increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel ceramic filter to the not enough of existence among the above-mentioned prior art.

The utility model provides an above-mentioned technical problem's technical scheme as follows:

the utility model provides a novel ceramic filter, evenly is equipped with a plurality of hole and time hole on the filter, and the upper and lower half dislocation of hole and time hole aligns, filter and upper and lower hole integrated into one piece.

Preferably, the diameter of the lower hole is 1cm, and the length of the water channel formed by the upper hole and the lower hole is 2 mm.

Compared with the prior art, the beneficial effects of the utility model are that: through the upper hole and the lower hole, the upper half and the lower half are staggered and aligned, the air suction phenomenon is effectively solved, and the problem that cracks are generated on the surface layer of the ceramic filter plate during sintering is avoided.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure, 1, a filter plate; 2. an upper hole; 3. and (4) a lower hole.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

The utility model provides a novel ceramic filter, includes filter 1, evenly is equipped with a plurality of on filter 1 and goes up hole 2 and lower hole 3, goes up hole 2 and lower hole 3 and partly misplaces the alignment from top to bottom, filter 1 and last hole 2 and lower hole 3 integrated into one piece. The upper hole 2 and the lower hole 3 are aligned in a staggered mode, so that the air suction phenomenon is effectively solved, and the problem that cracks are generated in the surface layer of the ceramic filter plate during sintering is solved.

The diameter of the lower hole 3 is 1cm, and the length of a water channel formed by the upper hole 2 and the lower hole 3 is 2 mm.

A novel preparation method of a ceramic filter plate comprises the following steps,

step 1, selecting a forming die, a water channel inner die and slurry for preparation;

step 2, putting the water channel inner mold into a forming mold;

step 3, pouring the slurry latex into the forming die in the step 2;

step 4, after the slurry is formed, removing the forming die to obtain a semi-finished ceramic filter plate;

and 5, carrying out high-temperature combustion on the semi-finished ceramic filter plate to enable the internal mold of the water channel inside the semi-finished ceramic filter plate to be completely combusted and volatilized to obtain the ceramic filter plate.

The forming die adopts a water absorption die to ensure slurry absorption forming and shorten forming time.

The water channel inner mold is made of high-temperature combustion volatile matters, so that the water channel inner mold is completely combusted and volatilized at high temperature, and a water channel is left.

The water channel internal mold is of a composite structure, and the upper hole and the lower hole are aligned in a semi-staggered mode.

The diameter of the supporting body on the water channel inner die is set according to the size of the filter plate.

The forming mould is a plaster mould, and the water channel internal mould is a foam internal mould and slurry. By examining the data, the capillary force is inversely proportional to the pore diameter as shown in equation one, and the pore diameter is directly proportional to the particle diameter as shown in equation two, where the equation is as follows:

d is 0.154D formula two

Wherein p is the capillary force, D is the pore diameter, D is the particle diameter, it can be seen from the above two formulas that the capillary force decreases with decreasing pore diameter, and in order to achieve a certain capillary force, an aggregate with a certain diameter needs to be selected. The uniformity of the aggregate particle size ensures the uniformity of the pore diameter to a great extent, and when the filter plate works, the uniformity of the pressure intensity borne by the filter layer is ensured.

When foam preparation is carried out, the foam is cut according to the size to form array arrangement, and the size and smoothness of the water channel are ensured. According to the size of the ceramic plate, a certain water path width is designed, so that the smoothness of the water path can be ensured while the strength of the blank body is ensured. The round holes of the single-piece foam inner die are arranged in an array, the round holes of the double-layer foam are staggered and aligned, and the gypsum die is adopted for blank preparation, so that the blank forming time is effectively shortened, and the yield is improved; the thickness of the blank is controllable; the transportation is convenient, the method of internally arranging the foam inner die is adopted, the water path is clear and controllable, the water path is optimized, the productivity is improved, the production cost can be greatly reduced, and the yield of products is improved; the integral forming is adopted, the yield of the green body is improved, and the green body is not easy to damage.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A novel ceramic filter plate is characterized in that: including filter (1), evenly be equipped with hole (2) and lower hole (3) on a plurality of on filter (1), half dislocation aligns about hole (2) and lower hole (3), filter (1) and hole (2) and lower hole (3) integrated into one piece.

2. The novel ceramic filter panel of claim 1, wherein: the diameter of the lower hole (3) is 1cm, and the length of a water channel formed by the upper hole (2) and the lower hole (3) is 2 mm.