CN2278520Y

CN2278520Y - Wet bed granule layer deduster

Info

Publication number: CN2278520Y
Application number: CN 94221407
Authority: CN
Inventors: 侯栋岐; 于德亭; 于荣华; 王玉忠
Original assignee: Harbin Design Inst Of Complete Electric Station Equipment Set Ministry Machine
Current assignee: Harbin Design Inst Of Complete Electric Station Equipment Set Ministry Machine
Priority date: 1994-09-19
Filing date: 1994-09-19
Publication date: 1998-04-15
Anticipated expiration: 2004-09-19

Abstract

The utility model relates to a dust remover for a granule layer of a wet bed, which comprises a housing 1, wherein a baffle plate 2 divides the housing 1 into two (or a plurality of) smoke separating chambers 3, an outlet is provided with a baffle plate 4 connected with a smoke channel 5, and each of the smoke separating chambers is provided with a wet granule filtering layer 6 of a tower plate type and is matched with a water back-flushing system. When smoke gases flow through the filtering layer, material filtering granules with water films can keep coarse powder dust and fine powder dust in the filtering layer to realize dust removal. When the filtered dust is saturated, the dust is instantly flushed by using the water as the medium and the water films are recovered. The smoke separating chambers alternately filter the dust, can be regenerated for the spare use and can continuously work. The utility model has the advantages of high dust removing efficiency, low cost and convenient running and maintenance, and is suitable for smoke exhausting and dust removing systems, such as industrial furnaces, industrial boilers, boiling furnaces, etc.

Description

Wet bed gravel bed filter

The utility model relates to a kind of gravel bed filter, particularly a kind of wet bed gravel bed filter with the water backwashing deashing.

Stove cigarette dust discharge contaminated environment receives publicity day by day, the mechanical collector that current industrial stove and coal furnace are equipped with is very low to the fine particle efficiency of dust collection, sack cleaner, electric cleaner and high-efficiency wet-type dust collector are subjected to equipment investment height, system maintenance and effects limit such as operation complexity, energy consumption height, are difficult to apply in China.

The purpose of this utility model is to overcome above-mentioned shortcoming, and a kind of dust arrester of removing trickle grit in the flue gas, low expense is provided.

The purpose of this utility model realizes by following technical scheme, wet bed gravel bed filter has housing, it is characterized in that the housing inner route clapboard is divided into two chambers or multicell, establish column plate type fixed bed stratum granulosum in the chamber, filtering material particle is of a size of 2～6 millimeters of diameter or opposite side, the flue gas intergranular hole of flowing through, the particle surface with moisture film gets off the grit detention, reaches the purpose of dedusting; The instantaneous water backwash is removed the dust of detention in the filter material layer and is recovered moisture film, flushing water water ash content from after recycle; Each chamber baffle plate takes turns opening and closing, guarantees the continuous operation of wet bed gravel bed filter.

Below in conjunction with accompanying drawing wet granular layer deduster of the present utility model is described specifically.

Fig. 1 is the structural representation of the wet bed of the utility model gravel bed filter.

Fig. 2 is the wet bed gravel bed filter that the bottom has shutter.

Fig. 3 is the wet bed gravel bed filter that the bottom has cyclonic separation.

As Fig. 1, wet bed gravel bed filter has the housing (1) that is in series with flue, housing (1) inner route clapboard (2) is divided into 2 or a plurality of minutes smoke-boxes (3), divide the smoke-box outlet to establish flue gas plate washer (4), be connected in exhaust pass (5), divide and arrange several layers column plate type wet granular filtering layer (6) in the smoke-box, and is furnished with water backwashing system (7), the flue gas tortuous passageway that space between wet granular forms of flowing through, filtering material particle surface with moisture film not only can be thick grit, and can get off the dustshot detention, realize high-effective dust-removing, work as water evaporates, when the particle surface moisture film will lose, close branch smoke-box outlet plate washer, stop to filter dirt, the dust of filtering layer detention is washed in the instantaneous water recoil off, and it is standby to recover moisture film simultaneously, flushing water is discharged outside the housing, the water ash content from after recycle, each minute the smoke-box plate washer take turns opening and closing, guarantee the continuous operation of wet bed gravel bed filter.

The inlet flue gas dust content that the utility model allows is higher, can use separately, also can before wet bed stratum granulosum other pre-dust-removing element be set, as shutter (8), or device, as cyclone separator (9), be used in combination.

Fig. 2 shows the wet bed gravel bed filter of band shutter (8) preseparator, and when dust concentration was excessive, the flue gas louver separator (8) of flowing through was earlier collected thick grit get off, and dustshot is collected identical with Fig. 1 by the wet granular layer.

Fig. 3 shows the wet bed gravel bed filter that has cyclone separator (9) preseparator, and the flue gas cyclone separator (9) of flowing through is earlier collected the thick grit of major part get off, and dustshot is collected by the wet granular layer again, and is identical with Fig. 1.

Wet bed gravel bed filter efficiency of dust collection height of the present utility model, low to the flow of flue gas resistance, backwashing water can recycle, operation, easy to maintenance.

Claims

1 one kinds of wet bed gravel bed filters is characterized in that housing (1) is divided into 2 or a plurality of minutes smoke-boxes (3) by dividing plate (2), divide the smoke-box outlet to establish flue gas plate washer (4), are parallel to exhaust pass (5).

2 according to the described wet bed gravel bed filter of claim, it is characterized in that it is spherical or irregularly shaped dividing column plate type fixed bed stratum granulosum (6) in the smoke-box (3), filtering material particle in the said housing (1).

3 according to the described a kind of wet granular layer deduster of claim, it is characterized in that the following shutter (8) that is provided with of fixed bed wet granular layer

4 according to the described a kind of wet bed gravel bed filter of claim, it is characterized in that the following cyclone separator (9) that is provided with of fixed bed wet granular layer.