Channel for rotary extruding-type filter

A filter and extrusion technology, which is applied to the channel field of a rotary extrusion filter to achieve the effects of improving service life, improving filtration efficiency and improving uniformity

Inactive Publication Date: 2011-06-29
浙江科力尔环保设备股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

"This kind of structure that configures protrusions in the "second half of the filter chamber to the front half of the filter cake passage" of the rotary squeeze filter, although it improves the efficiency of some filters compared to the way that the gate is used to increase the discharge resistance. Extrusion efficiency, but there is still the deficiency that the extrusion effect is mainly produced at the last part of the channel

Method used

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  • Channel for rotary extruding-type filter
  • Channel for rotary extruding-type filter
  • Channel for rotary extruding-type filter

Examples

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Embodiment Construction

[0014] 1. There is a channel for a rotary extrusion filter, such as figure 1 As shown, it consists of a C-shaped outer isolation plate 1, an inner isolation plate 2 in the C-shape, a guide block located at the C-shaped opening and integrated with the inner isolation plate, and two filter screens installed on the rotating shaft. The inner and outer isolation plates and the guide block are clamped in the middle to form a C-shaped filter channel with the opening between the upper and lower sides of the guide block and the outer isolation plate as the inlet and outlet. The rotating shaft installed by the filter screen is located in the middle of the C-shaped channel. When working, the filter screen pushes the material from the feed port to the discharge port while separating the solid-liquid phase in the material. The filtering channel has a rectangular cross section, two side lengths forming parallel to the filter screen are two filter screens, and two side lengths forming parall...

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PUM

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Abstract

The invention provides a channel for a rotary extruding-type filter, and the channel provided by the invention is a C-shaped channel consisting of an inner wall [A] on an outer partition board [1], an outer wall [B] on an inner partition board [2] and a filter screen; the cross section of the channel is rectangular; the upper end of the channel is connected with a feed port through a feeding section; the lower end of the channel is connected with a discharging port through a discharging section; a flashboard [4] is arranged at the discharging port; and the radial side length of the rectangular cross section is gradually reduced from the feeding section to the discharging section. In the channel for the rotary extruding-type filter provided by the invention, the radial side length of the rectangular cross section is gradually reduced from the feeding section to the discharging section so that the cross section of the channel is matched with the reduction of the volume flow rate of materials. Compared with the prior art, the channel can be used for improving the uniformity of the compression ratio of the materials at each part of the channel, thereby improving the filtering efficiency of the filter; and simultaneously, the gradually reduced channel also provides an extruding force for the materials; therefore, the defect that the extruding force for the materials is provided only by the flashboard is changed so that the service life of the device is improved.

Description

technical field [0001] The invention relates to a channel of a rotary extruding filter, which belongs to the technical field of filters with rotating flat filter surfaces separated during operation. Background technique [0002] The rotary extrusion filter has a rectangular cross-section that forms a C-shaped channel around the rotating shaft. The two sides of the channel are filter screens connected to the rotating shaft. The upper end of the channel passes through the feed section to the feed port, and the lower end passes through the discharge section to the discharge The discharge section is equipped with a gate that exerts resistance to the filter cake to control the liquid content of the filter cake. Sludge or similar solid-liquid mixture with tiny solid particles enters the channel from the material inlet, and the material gradually moves to the outlet through the filter screens on both sides. During this period, the material changes from thin to thick in the channel...

Claims

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Application Information

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IPC IPC(8): B01D33/15
Inventor 王方清
Owner 浙江科力尔环保设备股份有限公司
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