CN2373158Y - Combined pulse dust separator with dust removing bag - Google Patents

Abstract

A new type of combined bag-type dust collector. By dividing the dust collector box and designing a dust cleaning device with a large-diameter pulse valve as the main component, and equipped with a combined filter bag, the dust collector can handle large air volume and High concentrations of dusty fumes. Since the cleaning process is separated from the filtering process, the dust collector can adapt to the requirements of continuous operation conditions, and it is helpful for the settlement of the cleaned dust. The air bag and large-diameter high-pressure pulse valve are used for dust removal, which can achieve thorough dust removal and good regeneration performance of the filter bag, ensuring long-term and stable operation of the dust collector, and the emission concentration is lower than the national emission standard. Can be widely used in cement, steel, carbon black, machinery and other industries.

Description

The combined type pulse deash bag dust-cleaning equipment

The utility model is a kind of environmental protection cleaner, be used for the dust of airborne dust point is captured processing, be mainly used in the various airborne dust occasions of cement industry, as kiln hood, kiln tail, cement grinding mill, raw mill etc., also may be used on industries such as iron and steel, carbon black, metallurgy, the efficiency of dust collection height.

In China, the bag dust collector that this century, the eighties progressively grew up, constantly perfect through in the last few years obtained significant progress.Because its efficient height, labor aptitude are strong, little with the variation of working condition, characteristics such as management easy to operate, purposes are also more and more widely.With regard to deduster itself, along with making rapid progress of filtrate fabric, the development and change of the improvement of its soot cleaning system and the structure of deduster (comprising the filter bag structure) also emerge in an endless stream.Traditional pulse dust cleaning bag collector, the pulse valve that deashing adopts is little, and deashing kinetic energy is not enough, apparatus body locellus not in addition filters, deashing carries out simultaneously, sticks to the lip-deep dust of filter bag and is difficult to by clearly down, stick with paste bag so use just to form easily soon, influence its result of use.Also there is same deficiency in rotary counter-blowing formula bag collector, and the difficult adjustment in the slit between revoliving arm and the card, is easy to generate and leaks out, and reverse gas cleaning is affected, and result of use is not satisfactory, then can not meet the demands if handle the gas of high dust content.In a word, these dedusters are because the restriction of self-condition more and more can not adapt to the requirements at the higher level of current country to environmental protection.

The purpose of this utility model is that a kind of novel sack cleaner will be provided, and this deduster adopts the branch mailbox fabricated structure, overcomes single case deashing, filters the shortcoming of carrying out simultaneously; Adopt the heavy caliber high-pressure pulse deashing, accomplish that deashing is thorough; Characteristics such as adopting combined type, cross section is oval-shaped filter bag, makes it have the space availability ratio height, and efficiency of dust collection is good.It is simple in structure, compact, easy to install to require whole deduster to have simultaneously, and reliable stable, good dedusting effect reaches discharging standards, compares distinguishing features such as reduced investment with the bag collector of handling same air quantity.

The primary structure of deduster of the present utility model is: in the casing of deduster, utilize card that casing is divided into pure qi (oxygen) space and filter space, filter bag is positioned at filter space, and the top is suspended on the card, and the bottom then is fixed on the ash bucket top.Adopt dividing plate that the pure qi (oxygen) space in the casing is divided into a plurality of air-purifying chambers, each independently air-purifying chamber independently little air outlet and deashing device all be equipped with, make an air-purifying chamber of deduster carry out deashing when operation, other pairing filter bag in air-purifying chamber below can interference-freely carry out filter operation.During use, dust-contained airflow enters deduster inside from air inlet, enters in the filter space by the ash bucket top, and after the filter, clean gas enters the pure qi (oxygen) space from the card hole of each filter bag correspondence outside filter bag.In order to guarantee ash-removal effect, the deashing device of the utility model design adopts big gas bag and heavy caliber high-voltage pulse valve, makes deashing moment can have enough air-flows to enter in the filter chamber that needs deashing.In addition, for effectively utilize space, the utility model to design combined type, cross section is oval-shaped filter bag, makes unit volume inner filtration area reach higher level.On this basis, the utility model also on the sealing means of the skeleton structure of filter bag, cylinder valve seat, has all been done new design.

Use the utility model can have following characteristics: at first,, to make deashing process and filter process separately, make deduster more can adapt to the working condition requirement of working continuously, also help the sedimentation of the dust that got off clearly owing to adopted the branch cell structure.Secondly, adopt big gas bag and heavy caliber high-voltage pulse valve deashing, can accomplish that deashing is thorough, the filter bag regenerability is good, has guaranteed that dust-precipitator moves steadily in the long term.The 3rd, the combined type of employing, cross section are oval-shaped filter bag, have increased the filter area of filter bag effectively, thereby reach to increase and handle air quantity, reduce equipment volume, reduce cost of investment and reduced the mutual friction of filter bag, prolonged the service life of filter bag.The 4th, the cylinder valve seat adopts square rubber seal enhanced leaktightness, has further strengthened the air-tightness of dust-precipitator, and ash-removal effect is better.The 5th, skeleton adopts resiliency supported, when making pulse dust cleaning, adds strong motion.In a word, using deduster of the present utility model, is 500-1000g/Nm at entrance concentration ³About situation under, the outlet concentration of emission smaller or equal to 50mg/Nm ³, be better than discharging standards.The complete machine stable and reliable operation is with main frame running rate height.

Most preferred embodiment of the present utility model can provide in conjunction with the following drawings:

Fig. 1 is a complete machine structure schematic diagram of the present utility model.

Fig. 2 is a filter bag cross sectional representation of the present utility model.

Fig. 3 is the utility model filter bag scheme of installation.

Fig. 4 is the utility model cylinder valve seat schematic diagram.

At first referring to Fig. 1, bag dust collector of the present utility model is that compositions such as filter bag 13, ash bucket 15 in the porch of casing 3, are equipped with casing deflector 2 by casing 3, air inlet 1, air outlet 14, is used for making entering in the deduster, and dusty gas evenly distributes.In casing 3 inside, card 12 is installed, space in the casing is divided into the pure qi (oxygen) space on top and the filter space of bottom, filter bag 13 fixedly is suspended in the filter space by card 12, dust-contained airflow enters deduster inside from total air inlet 1, by the outer filter effect of filter bag, the clean gas that is filtered is discharged from air outlet 14.

Feature of the present utility model is: utilize dividing plate 4 that the pure qi (oxygen) space of casing 3 is divided into a plurality of air-purifying chambers, each pairing filter space in air-purifying chamber below is called the pairing filter chamber of this air-purifying chamber.In each air-purifying chamber, all designed independently little air outlet 5 and winding-up mouth 7, little air outlet 5 is the unique passages that are communicated with air-purifying chamber and the total air outlet 14 of deduster, 7 in winding-up mouth is to link to each other with high-pressure air source.Each air-purifying chamber works alone, and is not communicated with mutually, does not disturb mutually.When certain air-purifying chamber carried out filter operation, winding-up mouth 7 was in closed condition, enters the clean gas in this air-purifying chamber from card hole 12, enters total air outlet 14 of deduster by little air outlet 5.And when this air-purifying chamber carries out the deashing operation, then close little air outlet 5, the cut-out air-purifying chamber is communicated with total air outlet 14, and by the winding-up mouthful 7 a large amount of high pressure deashing air-flows that enter, be full of air-purifying chamber rapidly, and enter filter bag 13 inside, filter bag 13 is carried out jetting deashing by card 12 holes.

Purge mode of the present utility model adopts big gas bag supply compressed air to carry out jetting deashing.Concrete structure is, at deduster casing top, being provided with provides compressed-air actuated big gas bag 10, and this big gas bag 10 is communicated with the two-way pipeline, and one the tunnel is main gas circuit pipe 9, another Lu Weizhi gas circuit pipe 11.During deashing,, make lift valve 6 actions, close little air outlet 5, thereby make this chamber stop to filter by a gas circuit pipe 11 by big gas bag 10 compressed and supplied air.Then by big gas bag 10 compressed and supplied air in main gas circuit pipe 9 enters heavy caliber high-voltage pulse valve 8, mouthful 7 pairs of these filter chambers carry out jetting deashing by winding-up.The dust of filter bag outer wall accumulation is removed, and falls into ash bucket 15, discharges through rotary feeder 16.After deashing finished, this filter chamber of deduster changed the filtration duty again over to.

In order to effectively utilize filter space, the utility model has designed a kind of new combination filter bag 13.The concrete structure of this combination filter bag is referring to Fig. 2.Its cross section ovalize, a plurality of filter bags are combined into one, and form an integral body.In each filter bag inside, be mounted with support framework 17, be used for preventing filter bag adhesion each other.Combination filter bag 13 is fixed on the card 12, fixed form is referring to Fig. 3, promptly at the upper edge hole of card 12, rubber press strip 18 is installed, upper top with filter bag hangs on the rubber press strip 18 then, and the sack wire rope core that makes filter bag 13 falls on the horizontal plane of card 17, with gland 19 filter bag 13 and sack wire rope core compressed again.Solve filter bag and revealed the problem of running ash at the sack place.

In addition, on the little air outlet 5 of each air-purifying chamber of deduster, seal valve panel seat 20 also is installed, and add rubber asbestos plate with card 17 usefulness bolts and be connected, sealing rubber ring 21 is installed on valve plate seat 20, strengthened the sealing (referring to Fig. 4) of valve plate 22, made the deduster ash-removal effect more obvious with card.

Claims (5)

1. A combined pulse cleaning bag dust collector, which consists of a box (3), an air inlet (1), an air outlet (14), a flower plate (12), a filter bag (13), and a box deflector ( 2) The ash hopper (15) is composed of the flower plate (12), which divides the space in the box into the upper clean air space and the lower filter space, and the filter bag (13) is fixed and suspended on the filter through the flower plate (12). In the space; it is characterized in that the clean air space of the box body (3) is divided into multiple clean air chambers by means of a partition (4), and in each clean air chamber, there are independent small air outlets (5) and blowing ports (7), the small air outlet (5) is the only passage that communicates with the clean air chamber and the total air outlet (14) of the dust collector, and the injection port (7) is then connected with the high-pressure air source. 2. The bag dust collector according to claim 1, characterized in that the dust removal device consists of an air bag (10) providing compressed air, a main air pipe (9), a branch air pipe (11), a large-diameter high-pressure The pulse valve (8) is composed of; when cleaning dust, the compressed air supplied by the air bag (10) moves the poppet valve (6) through the branch air pipe (11), and closes the small air outlet (5), so that the The chamber stops filtering, and then the compressed air supplied by the air bag (10) enters the large-diameter high-pressure pulse valve (8) through the main air pipe (9), and the filter chamber is sprayed and cleaned through the injection port (7). 3. The bag filter according to claim 1, characterized in that, the filter bag (13) is a combined filter bag with an elliptical cross-section, and multiple filter bags are combined to form a whole, and each filter bag Inside, a support frame (17) is arranged. 4. The bag filter according to claim 1, characterized in that the combined filter bag (13) is fixed on the flower plate (12), and a rubber bead (18) is installed on the upper edge of the flower plate (12), Then hang the upper top of the filter bag on the rubber bead (18), and make the bag rope core of the filter bag (13) drop to the level of the flower plate (17), and then use the gland (19) to seal the filter bag ( 13) Compress with the rope core of the pocket. 5. The bag dust collector according to claim 1, characterized in that, on the small air outlet (5) of each clean air chamber of the dust collector, a sealing valve plate seat (20) is also installed, and it is connected with the flower plate (17) add rubber asbestos plate to connect with bolt, and sealing rubber ring (21) is installed on valve plate seat (20).

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