CN2144533Y

CN2144533Y - Wet bag type dust remover

Info

Publication number: CN2144533Y
Application number: CN 92229595
Authority: CN
Inventors: 李松汉
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-07-27
Filing date: 1992-07-27
Publication date: 1993-10-27
Anticipated expiration: 2002-07-27

Abstract

The utility model provides a wet bag type dust remover which can protest against high temperature and process sulfur dioxide without ash removal and is composed of an air intake flow guiding chamber, a filter bag, a water processing slot, a slag slot, a water pump, etc. Dusty gas is filtered and discharged from the flow guiding chamber into the filtering bag; clean water is sucked by the water pump into the flow guiding chamber and flow in the filtering bag with fume; when the filtering bag is cooled by the water, dust particles trapped by the filtering bag are flushed down; the sulfur dioxide in the gas is sucked. Dusty waste water is processed in the water processing slot and is reused by circulation, and the slag separated by the water processing slot is exhausted to the slag slot to be stored.

Description

Wet bag type dust remover

The utility model is the sack cleaner that a kind of water cools off and clean filter bag.

In the present deduster of all kinds, sack cleaner is one of efficiency of dust collection the highest two kinds, and efficient can be stabilized in 99%.But there are two hang-ups in sack cleaner: the one, can not be high temperature resistant, and the 2nd, deashing is pretty troublesome.For this reason, expert both domestic and external all research can be high temperature resistant again can bag material, as stainless steel cloth, Glass Fibre Bag etc., but these materials not to be price very expensive is exactly that to make installation very difficult, be difficult to extensive use at present; The method that also has some to adopt cooling earlier to enter sack cleaner again, but the investment of temperature reduction technology equipment needed thereby is big, the operating cost height.Aspect deashing, methods such as the blowback of adopting, pulse, rapping have certain effect now, but all exist the problem of reentrainment of dust or cycleoperation, and its control executing agency more complicated is out of order, easily so problem in service is more.Present sack cleaner all fails to handle sulfur dioxide, and China has caught up with the ranks of advanced country in the world, will be to sulfur dioxide pollution strict control measure such as implement that blowdown is paid dues, so old-fashioned sack cleaner will fail to adapt to new requirement.

The purpose of this utility model be to provide a kind of energy high temperature resistant, can handle sulfur dioxide and need not the sack cleaner of regular deashing.

Temperature, the deashing that the utility model solves at needs and three problems can handling sulfur dioxide, the technical solution of employing is that water (or alkaline water) washes filter bag.Its principle is as follows:

Water washes filter bag continuously, makes filter bag surface form moisture film, not only reduces the temperature of filter bag itself, grit and the absorption sulfur in smoke can also the continuous wash filter bag held back.Solved the problem of temperature, deashing and the processing sulfur dioxide of sack cleaner.

Accompanying drawing 1 is the work schematic diagram of " wet bag type dust remover ", specify as follows: flue gas to be processed is extracted into the A1 place through blower fan and enters air inlet 1., 2. malleation enters diversion chamber, evenly enter again filter bag 3. in, the clean gas after filtering through the eyelet of filter bag is discharged to the space from A2.And clear water (or alkaline water) by water pump 7. be evacuated to diversion chamber 2. in, flow into filter bag simultaneously 3. with ash-laden gas, water flows to following water treatment trough 4. the time from filter bag upper end 3., the grit of holding back in the cloth bag is swept away simultaneously.4. dust-laden waste water flow into himself clear water storage tank B3 place in the B2 place after treatment at water treatment trough, and supply-water pump is extracted circulating and recovering out to the dedusting again of B1 place; 4. water treatment trough is furnished with the adjustable pH value of lime neutralising arrangement; When water was evaporated minimizing, the water inlet ball-cock assembly can be opened additional clear water automatically.4. sediment is long-pending to a certain degree when water treatment trough, open residual cake valve 5. just can slag slurry let out the storage slag chute 6. in, sediment is when the storage slag chute is stored, the water of a small amount of that brings out with slag is through sediment itself and the media filtration discharge 6. of storage slag chute, it is minimum that the sediment moisture content is dropped to, easy cleaning.

The technique effect of this device is: owing to utilize water flushing filter bag, thereby obtained " wet bag type dust remover " peculiar can be high temperature resistant, deashing and handle the effect of sulfur dioxide continuously and automatically.

Claims

1, one by air intake diversion chamber 2., filter bag 3., water treatment trough 4., residual cake valve 5. with the wet bag type dust remover 6. formed of storage slag chute, it is characterized in that:

A. filter bag does not have the water flushing not left alone without helply, and water carries out deashing and absorbs sulfur dioxide in the cooling filter bag;

B. clear water flows into filter bag from the upper end, and dust-laden waste water flows out from the filter bag lower end and enters water treatment trough;

C. filter bag, water treatment trough and storage slag chute become vertical three-dimensional to arrange.