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Coal-fired smoke boiler purifier and purification method

A technology for flue gas purification and coal-fired boilers, which is applied to chemical instruments and methods, separation methods, and separation of dispersed particles. Pollution, the effect of eliminating particulate dust

Inactive Publication Date: 2008-08-13
冯之军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of the electrostatic precipitator are that it occupies a large area, requires a large investment, requires high installation and operating conditions, and cannot eliminate harmful substances such as sulfur dioxide in the flue gas.
The dust removal efficiency of the cyclone dust collector is only 80-90%, and the sulfur dioxide in the flue gas cannot be removed
The wet dust collector has low desulfurization efficiency, high operating cost, and secondary pollution. At the same time, there is no sulfur dioxide monitoring device, which brings inconvenience to medium and small coal-fired boilers to remove sulfide in the flue gas

Method used

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  • Coal-fired smoke boiler purifier and purification method

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Embodiment Construction

[0011] In Fig. 1, filter tank 10 is welded after bending with steel plate, and there is an oblique feed inlet 5 on the top of filter tank 10, and discharge port 4 is arranged at the bottom of filter tank 10, on the side of filter tank 10 There is a flue gas inlet 2 on the tank wall, and a flue gas outlet 6 is arranged on the other tank wall of the filter tank 10 . A tubular water cooler 3 with an interlayer is flange-connected to the flue gas inlet 2, and an automatic sulfur dioxide detector is installed on the flue gas outlet 6. The discharge port 4 of the filter tank 10 is equipped with a roller crusher 8; a conveyor 9 is installed between the crusher 8 and the mixing batcher 11, and a conveyor 12 is installed between the mixing batcher 11 and the ball making machine 13, A hoist 1 is also installed between the ball making machine 13 and the feed port 5 of the filter tank 10 . Wherein the mixing and batching device 11 adopts a conical mixer, and the ball making machine 13 ad...

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Abstract

A fume cleaning apparatus for the boiler burning coal is composed of a filtering cylinder with raw materials' inlet and outlet and fume inlet and outlet, cooler of fume, automatic SO2 detector, breaker, materials mixer sphericizing machine, conveyer and lifting machine. Its fume cleaning method includes such steps as proportionally mixing lime, gypsum, powdered coal ash and water, sphericizing the mixture, filling the spherical particles in filtering cylinder, gravitationally moving them through the filtering cylinder, discharging and breaking.

Description

technical field [0001] The present invention relates to a purification device and method, more specifically to a coal-fired boiler flue gas purification device and method, suitable for removing sulfur dioxide and other harmful substances in the flue gas of medium and small industrial coal-fired boilers and their kilns. gas. Background technique [0002] Because coal contains sulfur, the flue gas produced by medium and small coal-fired boilers is mixed with a large amount of harmful gases such as sulfur dioxide. With the discharge of flue gas from coal-fired boilers, it has brought serious pollution to the surrounding environment and the atmosphere. In order to solve the pollution problem of flue gas of medium and small coal-fired boilers, smoke and dust removal equipment such as electrostatic precipitator, cyclone dust collector or wet dust collector are usually installed on the flue gas outlet of the boiler. The disadvantages of the electrostatic precipitator are that it o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/83B01D46/34
Inventor 冯之军
Owner 冯之军