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Coal-burning boiler dichotomous approach smoke discharging dust removing system

A technology for coal-fired boilers and dust removal systems, applied to lighting and heating equipment, etc., can solve the problems of high cost, increased difficulty in exhausting smoke, and difficulty in exhausting and dedusting, and achieves saving operating costs, good dedusting effect, low cost effect

Inactive Publication Date: 2011-10-05
于召君
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the contrary, dust removal and desulfurization will increase the difficulty of smoke exhaust. The combination of these two difficulties will make smoke exhaust and dust removal even more difficult. If you want to meet the emission standards, you must pay a high price

Method used

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  • Coal-burning boiler dichotomous approach smoke discharging dust removing system

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Embodiment Construction

[0013] like figure 1 In the shown coal-fired boiler two-way smoke exhaust and dust removal system, the negative pressure dust removal and desulfurization tower 7 has a flue gas inlet 2 at the front end, and a flue gas outlet at the rear end. The flue gas inlet is directly opposite to the inside of the tower. Four atomizing nozzles 4 are arranged on the wall between the flue gas inlet and the lost wall, on the top of the flue gas inlet and on the top of the tower. The atomizing nozzles are connected to the water pipe 5, and a high-pressure water pump 3 is installed at the water inlet of the water pipe. The high-pressure water pump is connected to the alkali-containing high-pressure water source. An induced draft fan 9 is installed at the outlet of the flue gas. The outlet of the flue gas is connected to the waste gas overflow chamber 10. The smoke outlet has a sealed cover, and the bottom has a sealed ash outlet. The smoke outlet of the coal-fired boiler 1 is connected to the f...

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Abstract

The invention relates a dust-removal system for a coal-fired boiler. The coal-fired boiler adopts a dichotomous smoke venting and dust removing system; a smoke inlet is arranged at the front end of a negative-pressure dust-removing desulfurizer thionizer, and a smoke outlet is arranged at the rear end; an atomization spray head is arranged at the smoke inlet. The invention adopts dichotomous smoke venting and dust removing (including desulphurization) method to overcome the disadvantages of the existing smoke venting and dust removing devices; the smoke inlet of the negative-pressure and dust-removing desulfurizer thionizer is communicated with the smoke discharge port of the boiler; the smoke is discharged into the negative-pressure and dust removing tower; the smoke venting, dust removal and desulfurization are completed within the thionizer, i.e. smoke venting is conducted first to ensure the normal combustion of the boiler, and dust removal and desulfurization are conducted later;smoke venting and dust removing do not influence each other; thereby, smoke venting, dust removal and desulfurization are easy to conduct, the dust removing effect is high and the cost is low. Besides, the equipment structure is simple, too many equipment are not needed, the operation cost is reduced; the smoke venting and dust removing effect can be compared with the dust content after raining, and the desulfurization is controllable.

Description

1. Technical field: [0001] The invention relates to a coal-fired boiler dust removal system. 2. Background technology: [0002] At present, all coal-fired boilers, no matter how good or bad the dust removal and desulfurization effect is, their smoke removal, dust removal and desulfurization process is completed during the smoke exhaust process. This practice will lead to the opposition and contradiction between smoke exhaust and dust removal. Smoke exhaust will increase the difficulty of dust removal and desulfurization. Conversely, dust removal and desulfurization increase the difficulty of smoke exhaust. The combination of these two difficulties makes smoke exhaust and dust removal even more difficult. If you want to meet the emission standards, you must pay a high price. 3. Contents of the invention: [0003] The purpose of the present invention is to overcome the above disadvantages and provide a coal-fired boiler two-way smoke exhaust and dust removal system with sim...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F23J15/04
Inventor 于召君
Owner 于召君
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