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Pressure disc type filter

A filter and pressure plate technology, applied in filtration and separation, moving filter element filters, separation methods, etc., can solve the problems of large equipment and small filter surface, and achieve compact structure, high sealing performance, and increased production capacity. Effect

Inactive Publication Date: 2008-11-12
安丘海洋机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of filter has the disadvantages of large equipment and small filtering surface.

Method used

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Examples

Experimental program
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Effect test

Embodiment

[0024] As shown in the drawings, a pressure disc filter includes a hollow shaft 3 , a filter device fixed on the hollow shaft 3 , a scraper device for unloading, a main transmission device 8 and a tank body 1 . The main transmission device 8 adopts a direct-connected suspension type reducer, and frequency conversion speed regulation. The tank body 1 is a sealed pressure tank body composed of a cylinder body and two heads. One end of the tank body and the hollow shaft is provided with an end sealing device 9 to seal the tank body. The bottom of the tank body 1 is provided with a feeding device 10 communicating with the inside of the tank body. The filter device includes a circular filter disc 2 arranged axially along the hollow shaft 3, each circular filter disc 2 is composed of at least 12 cavities arranged along the circular surface, and the cavity of the filter disc 2 is composed of two surfaces with The top-closed fan-shaped cavity formed by the fan-shaped plate with smal...

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Abstract

The present invention relates to a press pan filter which includes a hollow shaft, a filtering apparatus fixed on the hollow shaft, a scraper apparatus for discharging and a tank, it is characterized in that: the filtering apparatus is at least a circular filter plate arranged along the axial direction of the hollow shaft, the circular filter plate is composed of at least twelve sector cavities disposed along the circular surface; the tank is a sealing pressure tank composed of a drum and two seal heads; a hollow cylinder concentric with the hollow shaft is arranged in the hollow shaft, an annular cavity is composed of the inner wall of the hollow shaft and the outer wall of the cylinder, longitudinal paths corresponding to the cavity on the filter plate and independent to each other are arranged between the inner wall of the annular cavity and the outer wall of the annular cavity, and each longitudinal path communicates with the corresponding cavity on the filter plate. The machine is also equipped with a swinging spray device. All of the motions of the machine are electrically controlled with high degree of automation. The invention is suitable for the pre-suspension technology, and has advantages of compact structure, big filter area and high yield capacity.

Description

technical field [0001] The invention relates to a filter, in particular to a pressure disc filter, which is a filter device used in the papermaking process of a paper mill. Background technique [0002] At present, the washing and concentration of white mud and green mud in the alkali recovery caustic chemical section of paper mills mainly use filters. The more commonly used filters generally use a single filter screen as the filter medium. This filter device has a simple structure, but the filter effect is poor. With the continuous development of filtration technology, a pre-hanging filter has appeared. Compared with the original filter, the biggest feature of the pre-hanging filter is the use of pre-hanging technology. The application of pre-hanging technology makes the filter medium change from a single filter net to a pre-hanging layer of filter net and white mud. Since the pre-hanging layer is composed of white mud particles, the white mud particle size is about 40-50...

Claims

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Application Information

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IPC IPC(8): B01D33/17B01D33/46B01D33/50D21C9/18
Inventor 钟希刚
Owner 安丘海洋机械制造有限公司
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