CN2695088Y

CN2695088Y - Self-heating type desulfur dust separator

Info

Publication number: CN2695088Y
Application number: CN 200320129518
Authority: CN
Inventors: 孙励明
Original assignee: Individual
Current assignee: Individual
Priority date: 2003-12-19
Filing date: 2003-12-19
Publication date: 2005-04-27
Anticipated expiration: 2013-12-19

Abstract

A self-heating type desulfurizing dust separator of the utility model comprises a first level tower, a second level tower and a lateral channel communicated with the bottom. The top of the first level tower is provided with a water spraying head. The lower part of the water spraying head is provided with a cyclone plate. A sieve plate is arranged in the lateral channel. A heat exchanger is arranged in the second level tower. The inlet and the outlet of one medium of the heat exchanger are respectively connected with the flue gas inlet and the flue gas outlet at the outboard of the second level tower. The flue gas outlet is communicated with the top of the first level tower. The inlet and the outlet of the other medium of the heat exchanger are positioned at the upper end and the lower end of the heat exchanger. The lower part of the second level tower is provided with a gas-water separation cyclone plate. The bottom of the second level tower is provided with a sewerage discharge outlet connected with a desilter. The advantages of the utility model are as follows: the space usage is decreased; the investment for equipment and construction is decreased; the desulfurizing effect is enhanced; the heat exchanger enhances the temperature of the flue gas which is treated at the outlet, avoids the condensation of moisture of the flue gas which is discharged, and decreases the power consumption of the draught fan; The self-heating type desulfurizing dust separator is provided with alkali and is stable, which can avoid the damage of the discharge with acidic property for the draught fan and the smoke channel.

Description

The self-heating type desulfurizing dust-collector

Technical field

The utility model relates to a kind of wet type desulfurizing dust collector, and particularly a kind of self-heating type desulfurizing dust-collector is mainly used in the desulfurization of discharging sulfur-containing smoke gas is handled.

Background technology

The circulating water pool of existing wet type desulfurizing dust collector will be located at other position separately, and its desulfurization and the general multistage cyclone plate that passes through of dehydration.Have following shortcoming: (1) equipment volume is huge, and it is many to take up room, the equipment manufacturing cost height, and service life is low; (2) equipment is in use because Wet-type desulfurize and dust removing causes the exhanst gas outlet temperature low excessively, and the dew that condenses easily increases thereby make flue gas discharge resistance, causes the air-introduced machine power consumption to increase.Processed flue gas can only lean on the cyclone plate desulfurization in desulfurization unit, its effect is relatively poor; (3) when operation, can not join alkali automatically, make the desulfurized effect instability, may make exhanst gas outlet form sour water, cause corrosion, cause complete equipment normally to move, cause economic loss to the user to air-introduced machine and flue.

Novel content

The purpose of this utility model just provides a kind of self-heating type desulfurizing dust-collector, and the equipment volume that prior art exists is huge, equipment manufacturing cost is high to solve; The exhanst gas outlet temperature is low excessively, condenses dew easily and causes the air-introduced machine power consumption to increase; Processed flue gas can only lean on the cyclone plate desulfurization in desulfurization unit, its effect is relatively poor; Can not join alkali automatically during operation, make the desulfurized effect instability, may make exhanst gas outlet form sour water, cause corrosion, the problem that causes complete equipment normally to move air-introduced machine and flue.

The technical solution of the utility model is:

The utility model has the advantages that: adopt the interconnection of sealing to connect the two-stage tower, reduced greatly to take up room, reduced equipment and construction investment; Adopt the mode of spray and sieve plate is set and both improved desulfurized effect, also can further reduce volume; Improve flue gas after handling greatly in the temperature in exit at the heat exchanger of the inlet setting of processed flue gas, avoided the dewfall of discharging flue gas, reduced the power consumption of air-introduced machine; Potass pool is added in the shower water by water pump continuously by flowmeter, has improved Treatment Stability, has avoided acidic discharge to air-introduced machine and the infringement of flue ground.

Description of drawings

Fig. 1 is the general structure schematic diagram of the utility model embodiment.

The specific embodiment

Referring to Fig. 1, the utility model comprises one-level tower 1, secondary tower 2 and is connected interconnection 3 between their bottoms.Be provided with a plurality of sprinkler heads 11 at the top of one-level tower, be provided with cyclone plate 13 below this sprinkler head, the top in interconnection 3 is provided with the several piece sieve plate 31 of inclination.Be provided with heat exchanger 22 on the top of described secondary tower 2, a kind of medium gateway of this heat exchanger is connected with 21 with the flue gas gateway 24 in the secondary tower outside respectively, and this exhanst gas outlet 24 is communicated with the top exit 12 of one-level tower 1 by pipeline 16.The another kind of medium gateway of heat exchanger 22 is positioned at its upper and lower side, and its lower end is inlet, and its upper port is connected with the air-vent 25 at secondary tower 2 tops.Be provided with gas-water separation cyclone plate 23 in the bottom of secondary tower 2, be provided with Sewage outlet 32 in the bottom of secondary tower 2.Floss hole 32 is connected by the inlet of pipeline with mudpan 5, and the outlet of sedimentation basin 5 is connected with the inlet of water pump 6, the outlet of water pump 6 by water pipe 15 with the inlet of sprinkler head 11 at one-level tower 1 top be connected.The inlet of water pump 6 also is connected with potass pool 7 by flowmeter 8.On the connecting pipe of each gateway of water pump 6, respectively be in series with valve 9,17 and 18.

The course of work of the present utility model is as follows:

Be incorporated into the smoke inlet 21 of secondary tower 2 from the flue dust gas of boiler emission, enter the tops of one-level tower 1 by heat exchanger 22 backs from exhanst gas outlet 24.Heat exchanger 22 passes to the emission gases of vertically passing through from this heat exchanger with the heat of the high-temperature flue gas of input, has improved the temperature of emission gases.At first following current spray desulfurization under the spray of sprinkler head 11 of top inlet 12 flue gases that enter from one-level tower 1; By cyclone plate 13, make buck mix neutralization reaction again, further desulfurization with sulfur in smoke and flue dust.Further reinforcing desulfuration effect under the effect of twice sieve plate 14 is carried out first separation (dehydration) to buck and gas simultaneously at last.Flue gas after primary dewatering flows to the bottom of secondary tower 2 from the interconnection 3 of bottom, and is arranged on sieve plate 31 second dehydrations in the passage 3.Enter through the flue gas of second dehydration bottom from secondary tower 2, through behind the triple dewatering of cyclone plate 23 and the heating of heat exchanger 22 be discharged into chimney from the outlet 25 at top through air-introduced machine 4.Finish a processing procedure.

The mud that deposits to the bottom of interconnection 3 is discharged in the sedimentation basin 5 from mud discharging mouth 32, is guided to the sprinkler head 11 at the top of one-level tower 1 by water pump 6 through the light-water of post precipitation, recycles.Buck in the potass pool 7 is added in the shower water by the control of flowmeter 8 and valve 9.

Claims

1, a kind of self-heating type desulfurizing dust-collector comprises one-level tower and secondary tower, and it is characterized in that: the top at the one-level tower is provided with sprinkler head, is provided with cyclone plate below this sprinkler head; The bottom of described one-level tower and secondary tower has interconnection to be communicated with, and is provided with sieve plate in this interconnection; Top at described secondary tower is provided with heat exchanger, and a kind of medium gateway of this heat exchanger is connected with the flue gas gateway in the secondary tower outside respectively, and this exhanst gas outlet is communicated with the top of described one-level tower; The another kind of medium gateway of this heat exchanger is positioned at its upper and lower side, and its upper port is connected with the air-vent of secondary top of tower; Be provided with the gas-water separation cyclone plate in the bottom of secondary tower; Bottom at the secondary tower is provided with Sewage outlet.

2, according to claims 1 described self-heating type desulfurizing dust-collector, it is characterized in that: also comprise mudpan, water pump, potass pool, flowmeter and valve, the inlet of mudpan is connected with described Sewage outlet, the outlet of sedimentation basin is connected with the inlet of water pump, and the outlet of water pump is connected with the inlet of the sprinkler head of described one-level top of tower; The inlet of water pump also is connected with potass pool by flowmeter; On the connecting pipe of each gateway of water pump, respectively be in series with valve.