CN208018313U - A kind of filter drum type precipitator - Google Patents

Abstract

The utility model discloses a kind of filter drum type precipitators, including rack, upper box and lower ash bucket；The upper box is interconnected with the lower ash bucket；Several filter cylinders are equipped in the upper box, the filter cylinder both ends are individually fixed on two correspondence side walls of the upper box, and the filter cylinder one end open, other end closing；The top box body sidewall is upper to be equipped with air blowing chamber in the cartridge open end, and the air blowing chamber is connected to the upper box by the cartridge openings, and the air blowing chamber bottom is equipped with gas outlet, side and is equipped with blowning installation；The top that the top box body sidewall is located at the filter cylinder blind end is equipped with air inlet；Deflector is equipped in the upper box, the deflector is v-shaped structure, is upside down fixed on the top of each filter cylinder of top layer.The utility model can avoid dust and gas from directly washing away top layer's filter cylinder surface, keep the dust stratification degree of every layer of filter cylinder close, to avoid frequently being cleared up due to top layer's filter cylinder is frequently occluded.

Description

A kind of filter drum type precipitator

Technical field

The utility model is related to deduster field more particularly to a kind of filter drum type precipitators.

Background technology

Filter cartridge dust remover formed using filter cylinder as filter element or using pulse jet deduster.Filter drum type precipitator Just occur in Japan and some American-European countries early in the 1970s, there is small, efficient, with good investment, Yi Wei The advantages that shield, but because its place capacity is small, difficulty is combined into Wind Volume equipment, and filtration velocity is relatively low, and application range is narrow, only in grain The sector applications such as food, welding, so failing large-scale popularization for many years.In recent years, as new technology, new material constantly develop, With Japan, the company in the U.S. is representative, is improved the structure and filtrate of deduster so that filter cartridge dust remover is widely answered For industrial circles such as cement, steel, electric power, food, metallurgy, chemical industry, whole volume increases several times, becomes filter area> 2000m2 large size dedusters（GB6719-86 classes）, it is that the traditional deduster of solution is difficult to ultrafine dust collection, filtration velocity is high, clearly Grey effect is poor, filter bag preferred plan run-down, operating cost is high easy to wear, and existing various pocket types, electrostatic precipitator in the market Compared to having the characteristics that effective filtration area is big, pressure difference is low, low emission, small, service life is long, become industrial dust collector hair The new direction of exhibition.

The structure of existing filter drum type precipitator is by blast pipe, exhaust duct, babinet, ash bucket, deashing device, water conservancy diversion dress It sets, airflow diversion distribution grid, filter cylinder and electric control gear composition, wherein airflow diversion distribution grid is mostly porous structure, such as the patent No. For CN200820146328.4, described in entitled heavy streaming filter cartridge dust remover " airflow-distribution board, which is transversely mounted on, to be removed Be directed at the position of air inlet in dirt room, be located above first row filter cylinder ", " airflow-distribution board by air inlet and first row filter cylinder every Open ", " offering plurality of holes on the airflow-distribution board ", it can be seen that, in existing filter drum type precipitator, although in import Place is provided with airflow-distribution board, but air-flow still directly sprays to top layer's filter cylinder surface, if things go on like this, top layer into fashionable Filter cylinder will be readily formed blocking, cause filter cylinder to replace frequent.

Utility model content

The purpose of this utility model is in view of the problems of the existing technology to propose a kind of filter cylinder with deflector structure Formula deduster, the filter drum type precipitator can avoid dust and gas from directly washing away top layer's filter cylinder surface, make the dust stratification of every layer of filter cylinder Degree is close, to avoid frequently being cleared up due to top layer's filter cylinder is frequently occluded.

The technical solution of the utility model is：A kind of filter drum type precipitator, including rack, the side of being fixed on the rack Upper box and the lower ash bucket below the upper box；The upper box is interconnected with the lower ash bucket, thick in air-flow Bulky grain is fallen into through the upper box in the lower ash bucket；Several filter cylinders are equipped in the upper box, the filter cylinder is by cylinder Skeleton and the strainer composition for wrapping up the skeleton side wall, this cartridge structure rigidity is strong, and the gas shock power that can be born is big, institute It states filter cylinder both ends to be individually fixed on two correspondence side walls of the upper box, and the filter cylinder one end open, other end closing；Institute State top box body sidewall it is upper in the cartridge open end be equipped with air blowing chamber, for reversely being purged to the filter cylinder, one side Simplify filter cylinder cleaning process, on the other hand also extends filter cylinder service life.The air blowing chamber passes through described with the upper box Cartridge openings are connected to, and the air blowing chamber bottom is equipped with gas outlet, side and is equipped with blowning installation；The top box body sidewall is located at described The top of filter cylinder blind end is equipped with air inlet；Deflector is equipped in the upper box, the deflector is v-shaped structure, upside down It is fixed on the top of each filter cylinder of top layer.

Further, the cartridge open end is respectively connected with a Venturi tube, Venturi tube heavy caliber end outwardly, using text Family name's pipe ash-removal effect is good, is not easy to plug the filter cylinder.

Further, the blowning installation includes gas bag, several injection tubes and the electromagnetic pulse in each injection tube Valve；The input terminal of electromagnetic impulse valve is directly connected to gas bag, and output end connects with injection tube, and whole device is by pulse control instrument Control, the dust stratification situation in deduster can be sensed using the method for impulse soot blowing at any time, to carry out deashing in time, into one Walk the effect for making deduster play high-effective dust-removing.

Preferably, the quantity of the injection tube is identical as filter cylinder quantity, and gas sprays to filter cylinder by the outlet of injection tube Center, the gas sprayed by injection tube by the design can directly purge filter cylinder center and be avoided to improve the efficiency of soot blowing The waste of energy.

Preferably, it is equipped with head cover at the top of the upper box, when necessary, the deduster can be carried out by the head cover Maintenance.

Preferably, the open end of the filter cylinder is higher than blind end, avoids making dust open from filter cylinder because cartridge open end is too low Mouth end enters the air blowing chamber, is further dropped into the gas outlet.

Preferably, the filter cylinder quantity is six, is arranged in the form of 2 × 3 matrixes, and there are two filters for top layer's arrangement Cylinder.

The utility model has the beneficial effects that：

（1）The utility model is equipped with a deflector above each filter cylinder of top layer, avoids because dusty gas is direct The phenomenon that impact top layer filter cylinder makes it easily block, by the way that the deflector is arranged, dusty gas is divided between each filter cylinder Match, the frequency that entire deduster filter cylinder is replaced can substantially reduce.

（2）The utility model is equipped with blowning installation, and the blowning installation is controlled by pulse control instrument, using impulse soot blowing Method can sense the dust stratification situation in deduster at any time, to carry out deashing in time, deduster further be made to play efficiently The effect of dedusting.

（3）Cartridge open end described in the utility model is respectively connected with a Venturi tube, good using Venturi tube ash-removal effect, no Easily block the filter cylinder.

Description of the drawings

Fig. 1 is the front view of the specific implementation mode of filter drum type precipitator described in the utility model；

Fig. 2 is the right view of the specific implementation mode of filter drum type precipitator described in the utility model；

Fig. 3 is the front view of the deflector of the specific implementation mode of filter drum type precipitator described in the utility model；

Fig. 4 is the side view of the deflector of the specific implementation mode of filter drum type precipitator described in the utility model.

In figure, 1, rack, 2, upper box, 3, lower ash bucket, 4, filter cylinder, 4-1, skeleton, 4-2, strainer, 5, air blowing chamber, 6, go out Gas port, 7, air inlet, 8, deflector, 9, blowning installation, 9-1, electromagnetic impulse valve, 9-2, injection tube, 9-3, gas bag, 10, Wen Pipe, 11, head cover.

Specific implementation mode

The utility model is described in further detail presently in connection with attached drawing.

As shown in Figure 1, 2, a kind of filter drum type precipitator, including rack 1, be fixed on the upper box 2 of the top of rack 1 and be set to The lower ash bucket 3 of 2 lower section of upper box；The upper box 2 is interconnected with lower ash bucket 3；Several filter cylinders 4 are equipped in the upper box 2, Filter cylinder 4 is made of the strainer 4-2 of cylindrical framework 4-1 and the package skeleton 4-1 side walls, and 4 both ends of filter cylinder are individually fixed in On the corresponding side wall of 2 liang of babinet, and 4 one end open of filter cylinder, other end closing；It is equipped with positioned at 4 open end of filter cylinder on 2 side wall of upper box Air blowing chamber 5, with upper box 2 by 4 open communication of filter cylinder, 5 bottom of air blowing chamber is equipped with equipped with 6 side of gas outlet for the air blowing chamber 5 Blowning installation 9；The top that 2 side wall of upper box is located at 4 blind end of filter cylinder is equipped with air inlet 7.

Deflector 8 is equipped in the upper box 2, deflector in the prior art is porous rectangular configuration, the water conservancy diversion Plate is horizontal above filter cylinder, and dust-contained airflow is only capable of flowing to filter cylinder by the hole on deflector, and top layer's filter cylinder is first subjected to dust-laden Airflow scouring, therefore top layer's filter cylinder is easiest to block, and generally requires frequently to replace.Deflector 8 described in the utility model is V Shape structure, does not have through-hole on plate, and deflector 8 is upside down fixed on the top of each filter cylinder of top layer 4, and air-flow will not be straight when work It connects and washes away 4 surface of top layer's filter cylinder, but be oriented to by deflector 8, flow to each column filter cylinder 4 separately down, while deflector 8 may be used also To play the role of buffer gas flow speed, prevent the large granular impurity in the excessive air-flow of impact force from damaging filter cylinder 4.

The operation principle of the utility model is：Dust-contained airflow is entered by air inlet 7 in deduster, in the effect of deflector 8 Under, each filter cylinder 4 is flowed through to air-flow uniform and stable, simultaneously because gas is into fashionable air-flow section sudden enlargement, a portion Big particle is down to lower ash bucket 3 in power and the sinking of inertia force effect, and the small dust of fine size, density " is cut by 4 appearance of filter cylinder Stream " simultaneously gathers together, and purified air-flow is flowed out by 4 central part of filter cylinder to be discharged, and is most flowed out afterwards through gas outlet 6, is reached purification mesh 's.

The resistance of filter drum type precipitator increases with the increase of 4 surface dust layer thickness of filter cylinder, and resistance reaches a certain regulation Deashing is carried out by blowning installation 9 when value.

One specific embodiment of the utility model, the blowning installation 9 include gas bag 9-3, several injection tube 9-2 and set Electromagnetic impulse valve 9-1 on each injection tube 9-2；The input terminal of electromagnetic impulse valve 9-1 is directly connected to gas bag 9-3, defeated Outlet connects with injection tube 9-2.

When the resistance of filter drum type precipitator reaches a certain range, signal is sent out by electromagnetic pulse controller, makes electromagnetism arteries and veins It rushes control valve armature to be attracted, open-top vent plug, the open-top diaphragm of air pressure of gas bag 9-3, gas bag 9-3, electromagnetic impulse valve 9-1 is opened It opens, compressed air sprays into injection tube 9-2 by the delivery outlet of electromagnetic impulse valve 9-1, and pulse control instrument blackout armature is returned, hit Bar loosens, and vent plug resets, and the pressure of gas bag 9-3 makes diaphragm be pressed on delivery outlet again, and electromagnetic impulse valve 9-1 is closed, and realizes clear Ash.

The utility model can also respectively connect a Venturi tube 10,10 heavy caliber end of Venturi tube in the open end of the filter cylinder 4 Outwardly.

It is kept away to allow the gas that injection tube 9-2 sprays directly to purge 4 center of filter cylinder to improve the efficiency of soot blowing The quantity of the waste for exempting from energy, injection tube 9-2 described in the utility model is identical as 4 quantity of filter cylinder, and gas is by injection tube 9-2 Outlet spray to the center of filter cylinder 4.

For ease of maintenance, the utility model can be equipped with head cover 11 at 2 top of the upper box.

It is flowed out from 4 open end of filter cylinder due to clean gas in the utility model, and then flows to gas outlet 6, to avoid big Grain dust is fallen to 4 open end of filter cylinder, influences the quality of clean gas, and 4 open end of the filter cylinder is higher than blind end.As preferred , 4 quantity of the filter cylinder is six, is arranged in the form of 2 × 3 matrixes, and there are two filter cylinders 4 for top layer's arrangement.

The above, only several specific implementation modes of the utility model, but the scope of protection of the utility model is not It is confined to this, any one skilled in the art within the technical scope disclosed by the utility model, can readily occur in Change or replacement, should be covered within the scope of the utility model.Therefore, the scope of protection of the utility model should be with Subject to the scope of the claims.

Claims (7)

1. a kind of filter drum type precipitator, it is characterised in that：Including rack (1), the upper box (2) being fixed on above rack (1) and Lower ash bucket (3) below upper box (2)；The upper box (2) is interconnected with lower ash bucket (3)；

Several filter cylinders (4) are equipped in the upper box (2), filter cylinder (4) both ends are individually fixed in upper box (2) two and correspond to side wall On, and filter cylinder (4) one end open, other end closing；Upper box (2) side wall close to filter cylinder (4) open end is equipped with air blowing chamber (5), the air blowing chamber (5) is with upper box (2) by filter cylinder (4) open communication, and air blowing chamber (5) bottom is equipped with gas outlet (6), side Face is equipped with blowning installation (9)；Upper box (2) side wall upper part close to filter cylinder (4) blind end is equipped with air inlet (7)；

Deflector (8) is equipped in the upper box (2), the deflector (8) is that inverted V-shaped structure, inverted V-shaped opening are fixed on most The top of upper layer filter cylinder (4).

2. filter drum type precipitator according to claim 1, it is characterised in that：Filter cylinder (4) open end is respectively connected with one Venturi tube (10), Venturi tube (10) heavy caliber end is outwardly.

3. filter drum type precipitator according to claim 1, it is characterised in that：The blowning installation (9) includes gas bag (9- 3), several injection tubes (9-2) and the electromagnetic impulse valve (9-1) in each injection tube (9-2)；Electromagnetic impulse valve (9-1) Input terminal is directly connected to gas bag (9-3), and output end connects with injection tube (9-2).

4. filter drum type precipitator according to claim 3, it is characterised in that：The quantity and filter cylinder of the injection tube (9-2) (4) quantity is identical, and gas is sprayed to the center of filter cylinder (4) by the outlet of injection tube (9-2).

5. filter drum type precipitator according to claim 2, it is characterised in that：Head cover is equipped at the top of the upper box (2) (11)。

6. filter drum type precipitator according to claim 1, it is characterised in that：Filter cylinder (4) open end is higher than blind end.

7. according to claim 1-6 any one of them filter drum type precipitators, it is characterised in that：Filter cylinder (4) quantity is six It is a, it is arranged in the form of 2 × 3 matrixes, and there are two filter cylinders (4) for top layer's arrangement.