Stratum granulosum filter of double-pass moving bed

A particle layer filter and moving bed technology, which is applied in the direction of dispersed particle filtration, dispersed particle separation, chemical instruments and methods, etc., can solve the problems of reducing collection efficiency, limiting equipment output, and difficult layout, so as to improve the collection effect , reduce dust emissions, popularize and apply promising effects

Inactive Publication Date: 2004-12-08
XIAN THERMAL POWER RES INST CO LTD
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AI Technical Summary

Problems solved by technology

The form of cross flow is that the air flow direction is perpendicular to the moving direction of the particle layer, because it is not easy to form a stable dust particle deposition layer, so the filtration efficiency is low
The downstream form means that the air flow direction is the same as the moving direction of the particle layer, and it is easy to form a sedimentation layer of dust particles. The trapped dust particles are entrained and the dust particles are mixed back, which reduces the collection efficiency, and the bed form is also difficult to arrange
The countercurrent form is that the flow direction of the airflow is opposite to the movement direction of the particle layer. Generally, the dust-laden airflow flows from bottom to top, and

Method used

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  • Stratum granulosum filter of double-pass moving bed
  • Stratum granulosum filter of double-pass moving bed

Examples

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Embodiment Construction

[0010] see figure 1 , this dual-pass moving bed particle layer filter consists of a filter housing 1, a gas collection cylinder 2, a partition cylinder 3, a filter cone 4, a filter gas inlet pipe 5, a filter gas outlet pipe 6, and a filter material inlet pipe 7. The filter material outlet pipe 8 is formed. The filter housing 1 includes three parts: an upper head 1.1, a cylinder body 1.2, and a lower head 1.3, which are enclosed from top to bottom. The gas collection cylinder 2, partition cylinder 3 and filtered gas inlet pipe 5 coincide with the axis of the filter cylinder 1.2 and are arranged on the upper part of the filter. The gas collecting cylinder body 2 is a cylindrical member, and its upper edge is connected with the upper head 1.1. After the filter material 9 is loaded into the particle layer filter, the annular space surrounded by the inner wall of the upper cavity of the filter housing 1, the outer wall of the gas collection cylinder body 2 and the upper surface o...

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PUM

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Abstract

A dual-stroke moving-bed filter with particle layer for removing dust from high-temp and -pressure gas or fume is composed of a vertical cylindrical casing composed of top and bottom end covers and cylindrical body and with gas inlet and outlet tubes and filter inlet and outlet tubes, a gas collecting cylinder at upper area in casing and communicated with said filter inlet tube, a region dividing cylinder in said gas collecting cylinder, and a conic hopper of filter at lower area in casing. The dust contained gas and the filtering particles flow downward at first and then upward for higher effect to remove dust.

Description

Technical field [0001] The content of the invention belongs to the technical field of filtration and separation devices, and relates to a moving bed granular layer filter used for dedusting coal gas and flue gas under high temperature and high pressure. Background technique [0002] Integrated gasification combined cycle (IGCC) and pressurized fluidized bed combined cycle (PFBC-CC) are currently recognized clean coal power generation technologies that can better solve the two major problems of energy saving and environmental protection in coal-fired power generation systems. Filtration dust removal is considered to be one of the most promising and most promising high-temperature dust removal technologies for IGCC and PFBC-CC. The particle layer filter is a device that uses solid particles with very stable physical and chemical properties to form a filter layer to filter gas. It has the advantages of high temperature resistance and good durability. Through design improvements...

Claims

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Application Information

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IPC IPC(8): B01D46/32
Inventor 郜时旺许世森危师让夏军仓
Owner XIAN THERMAL POWER RES INST CO LTD
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