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Wear-resistant pulverized coal concentration separation device

A technology for separation of concentration and thinness, and briquette, which is applied in the combustion type, burner, burner and other directions of burning powder fuel, can solve the problems of poor separation effect of pulverized coal, poor stable combustion ability under low load, low combustion efficiency, etc., to avoid Frequent cleaning, improve wear resistance, improve the effect of erosion resistance

Inactive Publication Date: 2021-02-19
湖南西拓新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that solving the problem of wear and erosion of key parts such as internal separators, guide vanes, and joints will effectively solve the problems of poor coal separation, low combustion efficiency, and poor combustion stability at low loads, and at the same time avoid later problems. Frequent maintenance phenomenon

Method used

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  • Wear-resistant pulverized coal concentration separation device
  • Wear-resistant pulverized coal concentration separation device
  • Wear-resistant pulverized coal concentration separation device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A wear-resistant pulverized coal concentration separation device of the present invention includes a cylinder body 1, the cylinder body 1 is a cylindrical structure connected with a cone, the taper of the cone body is 25°, and the cylinder body 1 is arranged obliquely, and The included angle between the vertical pulverized coal feed port 4 is 3°; the inside of the cylinder 1 is inlaid with wear-resistant ceramics 2, and the wear-resistant ceramics 2 is a dovetail structure, and the bottom is provided with a dovetail with a narrow bottom and a wide top. strip, and a stud welding stepped hole 21 is provided in the middle; specifically, the wear-resistant ceramic 2 has a thickness of 10mm, and is fixed in the cylinder body 1 by means of high-temperature inorganic adhesive and stud welding. Surface; the cylinder body 1 is provided with two, and symmetrically arranged side by side; the top side of the cylinder body 1 is connected to the side elbow 3 embedded with an integral ...

Embodiment 2

[0037] A wear-resistant pulverized coal concentration separation device of the present invention includes a cylinder body 1, the cylinder body 1 is a cylindrical structure connected with a cone, the taper of the cone body is 30°, and the cylinder body 1 is arranged obliquely, and The included angle between the vertical pulverized coal feed port 4 is 5°; the inside of the cylinder 1 is inlaid with wear-resistant ceramics 2, and the wear-resistant ceramics 2 is a dovetail structure, and the bottom is provided with a dovetail with a narrow bottom and a wide top. strip, and a stepped hole 21 for stud welding is provided in the middle; specifically, the wear-resistant ceramic 2 has a thickness of 20mm, and is fixed in the cylinder body 1 by means of high-temperature inorganic adhesive and stud welding. Surface; the cylinder body 1 is provided with two, and symmetrically arranged side by side; the top side of the cylinder body 1 is connected to the side elbow 3 embedded with an integ...

Embodiment 3

[0039] A wear-resistant pulverized coal concentration separation device of the present invention includes a cylinder body 1, the cylinder body 1 is a cylindrical connection cone structure, the taper of the cone body is 45°, and the cylinder body 1 is inclined The included angle with the vertical pulverized coal feed port 4 is 10°; the inside of the cylinder 1 is inlaid with wear-resistant ceramics 2, and the wear-resistant ceramics 2 is a dovetail structure with a lower narrow upper Wide dovetail strips, and a stepped round hole 21 for stud welding is provided in the middle; specifically, the wear-resistant ceramic 2 has a thickness of 30mm, and is fixed to the cylinder by dual methods of high-temperature inorganic adhesive and stud welding 1; the cylinder body 1 is provided with two, and symmetrically arranged side by side; the top side of the cylinder body 1 is connected to the side elbow 3 embedded with an integral wear-resistant ceramic sleeve, and the side elbow 3 is conne...

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Abstract

The invention discloses a wear-resistant pulverized coal concentration separation device. The wear-resistant pulverized coal concentration separation device comprises two cylinders, wherein wear-resistant ceramic is embedded in the cylinders; the two cylinders are symmetrically arranged side by side; the side surfaces of the tops of the cylinders are connected with side surface elbows; the side surface elbows are connected with a pulverized coal feeding port; the tops of the cylinders are connected with two cyclone regulators; the two cyclone regulators are used for controlling the pulverizedcoal flow of the two cylinders respectively; guide vanes are arranged at the lower ends of the cyclone regulators; U-shaped wear-resistant ceramic chips are arranged at the edges of the guide vanes; fixed frames are arranged at the peripheries of the cylinders; reinforcing ribs are arranged on the fixed frames; pulverized coal discharging ports are also formed in the bottoms of the cylinders; andM-shaped wear-resistant ceramic chips are lined in the pulverized coal discharging ports. The wear-resistant pulverized coal concentration separation device has the characteristics of simple structure, good separation effect, high temperature resistance, wear resistance, long service life and the like and can be widely applied to the field of combustion separators of power station boilers.

Description

technical field [0001] The invention belongs to the technical field of concentration separation equipment for boiler plants, and in particular relates to a wear-resistant pulverized coal concentration separation device. Background technique [0002] The pulverized coal concentration and thinness separation device is an important equipment for power plant boilers. Its function is to separate the air and powder mixture, and then send it to the furnace for combustion. The pulverized coal thick-thin separation device is washed by the wind mixture, and the cylinder body is easily worn through, which greatly affects the thick-thin separation effect of pulverized coal. At the same time, due to the serious wear and tear of the burner stabilizer, the separation effect of the concentration of pulverized coal is greatly affected, resulting in problems such as unstable supply of pulverized coal, reduced burnout, and poor stable combustion capability at low loads. Therefore, it is necess...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23D1/02
CPCF23D1/02
Inventor 邵晓克
Owner 湖南西拓新材料科技有限公司
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