CN101385945A

CN101385945A - Efficient low-consume flue-gas desulfurizing device

Info

Publication number: CN101385945A
Application number: CNA2008101433052A
Authority: CN
Inventors: 钟汉光; 袁江
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-10-14
Filing date: 2008-10-14
Publication date: 2009-03-18

Abstract

The invention discloses a high-efficient low-consumption flue gas desulphurization unit which comprises a tower body; a flue outlet is arranged at the top of the tower body; a drain pipe is arranged at the lower part of the tower body, a water eliminator is arranged at the upper part of an inter cavity of the tower body, a flue inlet pipe enters the inner cavity of the tower body and then gets downwards to form a bell mouth and a cylinder is arranged below the bell mouth and is supported by support legs; a doctor solution buffer pool is arranged outside the power body; a doctor solution distribution pool is connected with the doctor solution buffer pool through a doctor solution communicating pipe and an transfer pump is arranged on the doctor solution communicating pipe; a spraying pipe is provided with a spraying device at the tower body part. The flue gas in the flue inlet pipe is induced into the tower body by a fan; as a gap is formed between the bell mouth and the cylinder and the liquid level of the doctor solution keeps within the gap, the flue gas enters into the gap and rushes into the doctor solution with high-speed so as to cause the doctor solution to present a boiling form, and the flue gas and the doctor solution are fully contacted to lead a majority of sulfur dioxide in the flue gas to be eluted out; and the residual sulfur dioxide in the flue gas is eluted out by contacting doctor solution sprayed from the spraying device at the upper part of the tower, thus ensuring no sulfur dioxide in the flue gas discharged from the tower body and achieving the aim of environment protection. The invention also has the characteristics of less doctor solution consumption and low use cost.

Description

Efficient low-consume flue-gas desulfurizing device

Technical field

The present invention relates to a kind of flue gas desulfur device.

Background technology

The coal-burning installation of industrial use, especially thermal power plant, contain a large amount of sulfur dioxide in the coal-fired flue-gas of the coal-burning installation discharging of steel plant, this fume emission that contains sulfur dioxide in the atmosphere after, cause very big pollution to environment, be the primary pollution source that forms acid rain, and present employed flue gas desulfur device, mainly be to adopt spray type desulphurization, being about to flue gas is incorporated in the desulfurizing tower, load onto spray thrower on desulfurizing tower top, the desulfurizing agent that sprays in flue gas and the spray thrower is contacted, carry out flue gas desulfurization, though this mode has certain desulfurized effect, but because desulfurizing agent and flue gas are short time of contact, desulfurization is incomplete, the sulfur dioxide that still contains in the discharged flue gas, and doctor solution consumption is big, the use cost height.

Summary of the invention

The purpose of this invention is to provide a kind of efficient flue gas desulfur device.

The objective of the invention is to realize in the following way: a kind of efficient low-consume flue-gas desulfurizing device, comprise tower body, at the tower body top exhaust opening is arranged, leakage fluid dram is arranged at the tower body bottom, on tower body inner chamber top water fender is arranged, smoke-intake pipe becomes horn mouth downwards after entering the tower body inner chamber, and a cylinder is housed below horn mouth, and cylinder supports by leg; One doctor solution Buffer Pool is arranged outside tower body, and Buffer Pool has the desulfurization discharging tube by being connected on the tower body bottom communicating pipe on doctor solution Buffer Pool top; Doctor solution dosing pond connects the doctor solution Buffer Pool by doctor solution communicating pipe, and doctor solution is equipped with infusion pump on communicating pipe; Shower is equipped with spray equipment at tower body inner the branch, and the shower other end connects the doctor solution Buffer Pool, and spray pump is housed on shower.

The present invention has following beneficial effect; the smoke-intake pipe flue gas is incorporated in the tower body by blower fan; owing to form the mouth of a gorge between horn mouth and the cylinder; and the liquid level of doctor solution remains between the mouth of a gorge; flue gas enters the mouth of a gorge and speeds up; pour doctor solution at a high speed; make doctor solution be the boiling shape; flue gas contacts fully with doctor solution, and the most of sulfur dioxide in the flue gas is come out by wash-out, and the sulfur dioxide of remnants is on the top of tower in the flue gas; the doctor solution contact that is sprayed by spray equipment again; thereby sulfur dioxide remaining in the flue gas is also come out by wash-out, guarantee that not having sulfur dioxide from the flue gas that tower body is discharged exists, and reaches the purpose of protection environment.The present invention also has doctor solution consumption few, the characteristics that use cost is low.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the connection flow chart of the present invention in system for cleaning fume;

The specific embodiment

As shown in Figure 1, a kind of efficient low-consume flue-gas desulfurizing device, comprise tower body 1, at tower body 1 top exhaust opening 2 is arranged, leakage fluid dram 3 is arranged at tower body 1 bottom, on tower body 1 inner chamber top water fender 4 is arranged, and smoke-intake pipe 5 becomes horn mouth 6 downwards after entering tower body 1 inner chamber, one cylinder 7 is housed below horn mouth 6, and cylinder 7 supports by leg 8; One doctor solution Buffer Pool 9 is arranged outside tower body 1, Buffer Pool 9 is by being connected on tower body 1 bottom communicating pipe 10, on doctor solution Buffer Pool 9 tops desulfurization discharging tube 11 is arranged, doctor solution Buffer Pool 9 and desulfurization discharging tube 11 are to guarantee that the liquid level of the doctor solution 18 in the tower body 1 is between the mouth of a gorge of horn mouth 6 and cylinder 7 formation; Doctor solution dosing pond 12 connects doctor solution Buffer Pool 9 by doctor solution communicating pipe 13, and infusion pump 14 was housed on doctor solution communicating pipe 13; Shower 15 is equipped with spray equipment 16 at tower body 1 inner the branch, and shower 15 other ends connect doctor solution Buffer Pool 9, and spray pump 17 is housed on shower 15.

As shown in Figure 2, after sulfur-containing smoke gas enters the deduster dedusting, carrying out desulfurization to efficient low-consume flue-gas desulfurizing device of the present invention handles, the doctor solution proportioning device is pulverized lime stone to join and is made doctor solution input efficient low-consume flue-gas desulfurizing device behind the slurry and sulfur-containing smoke gas is entered desulfurization handle, waste liquid is passed to liquid waste treating apparatus through the leakage fluid dram of efficient low-consume flue-gas desulfurizing device and dewaters, and dried waste residue is that gypsum can utilize.

Claims

1, a kind of efficient low-consume flue-gas desulfurizing device, comprise tower body [1], at tower body [1] top exhaust opening [2] is arranged, leakage fluid dram [3] is arranged at tower body [1] bottom, on tower body [1] inner chamber top water fender [4] is arranged, it is characterized in that: smoke-intake pipe [5] becomes horn mouth [6] downwards after entering tower body [1] inner chamber, in horn mouth [6] below one cylinder [7] is housed, and cylinder [7] supports by leg [8]; One doctor solution Buffer Pool [9] is arranged outside tower body [1], and Buffer Pool [9] has desulfurization discharging tube [11] by being connected on tower body [1] bottom communicating pipe [10] on doctor solution Buffer Pool [9] top; Doctor solution dosing pond [12] connects doctor solution Buffer Pool [9] by doctor solution communicating pipe [13], and infusion pump [14] was housed on doctor solution communicating pipe [13]; Shower [15] is equipped with spray equipment [16] at tower body [1] the inner branch, and shower [15] other end connects doctor solution Buffer Pool [9], and spray pump [17] is housed on shower [15].