Energy-saving double-circulation desulfurization system

A desulfurization system, dual-cycle technology, applied in gas treatment, membrane technology, dispersed particle separation, etc., can solve the problems of low adjustment accuracy, unstable performance, poor energy saving effect, etc., to achieve a simple and reliable system and complete control logic matching effect

Inactive Publication Date: 2017-02-22
ZHEJIANG TIANDI ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As the operating conditions of the absorption tower change, energy saving is often achieved by starting and stopping one or more pumps, but the adjustment accuracy is not high, the energy saving effect is not good, and the performance is not stable

Method used

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  • Energy-saving double-circulation desulfurization system

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Embodiment Construction

[0014] The present invention will be further described below in conjunction with the examples. The description of the following examples is provided only to aid the understanding of the present invention. It should be pointed out that for those skilled in the art, without departing from the principle of the present invention, some improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

[0015] This energy-saving dual-cycle desulfurization system includes an absorption tower 1, an absorption tower pulp pool 2, and an outer pulp pool 4. The absorption tower pulp pool 2 and the tower outer pulp pool 4 are connected in an array multi-channel manner. The top of the tower 1 is provided with an absorption tower spray layer 11, and the absorption tower slurry pool 2 is connected with multiple absorption tower slurry circulation pumps 10; the absorption t...

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Abstract

The invention relates to an energy-saving double-circulation desulfurization system which comprises an absorption tower, an absorption tower slurry tank and an external slurry tank. The absorption tower slurry tank is connected with the external slurry tank in an arrayed multichannel mode, an absorption tower spray layer is arranged at the top of the absorption tower, the absorption tower slurry tank is connected with a plurality of absorption tower slurry circulating pumps, the absorption tower slurry circulating pumps are connected with the absorption tower slurry tank through pipelines, start and stop of the absorption tower slurry circulating pumps are interlocked with inlet valves, the external slurry tank is connected with a slurry circulating pump A and a slurry circulating pump B, and an external slurry tank spray layer is correspondingly connected with the slurry circulating pump A and the slurry circulating pump B and arranged on the upper portion of the absorption tower spray layer. The energy-saving double-circulation desulfurization system has the advantages that the system is simple and reliable, slurry deposition and scaling of the communicating pipelines can be relieved, the flow of the circulating pumps can be accurately adjusted according to the running condition of the desulfurization absorption tower, and the circulating pumps run at low power consumption.

Description

technical field [0001] This patent relates to an energy-saving double-cycle desulfurization system, in particular to a limestone-gypsum wet desulfurization system. Background technique [0002] With the increasing requirements of environmental protection, SO 2 Emission concentration as low as 35mg / Nm 3 In the past, the conventional single-tower single-cycle spray desulfurization process is difficult to meet the requirements of the current environmental protection situation. [0003] Many environmental protection companies have developed a single-tower double-cycle desulfurization process, which is basically the structure of the main absorption tower and the auxiliary pulp tank or auxiliary pulp tank. However, the number of slurry circulation pumps connected to the auxiliary slurry tank normally put into operation determines the amount of slurry transported by the connecting pipeline between the main absorption tower and the auxiliary slurry tank, which brings the defect of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/80B01D53/50
CPCB01D53/502B01D53/504B01D53/505B01D53/80B01D2251/404B01D2251/606B01D2251/608B01D2258/0283
Inventor 潘超群沈波沈敏强陈文华葛春亮廖达琛羊新伟郭景州
Owner ZHEJIANG TIANDI ENVIRONMENTAL PROTECTION TECH CO LTD
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