CN2352243Y - Flat bag composition type dust filtering apparatus with cyclone, rotating and back-blowing function - Google Patents

Abstract

The utility model relates to a novel composite dust remover. The utility model is composed of a cyclone rotary dust removing device and a back-blowing flat bag type dust removing device which are organically combined into integration to form a composite structure of sleeved inner ventilating passage; the conical ash tank of the cyclone rotary dust removing device and the back-blowing flat bag type dust removing device are compounded in the same coaxial direction to form a special structure of a double-layer conical ash tank, and the double-layer conical ash tank is provided with an ash outlet passage and an ash discharging passage which are used for separating big dust and fine dust; a compounded annular inducing draught passage which is composed of the filtering chamber of the back-blowing flat bag type dust removing device and a middle box body make the cyclone rotary dust removing device and the back-blowing flat bag type dust removing achieve inner passage communication and the soft and uniform air inlet of the filtering bags. The integral processing ability of the utility model can be a high-concentration dust source of 45600 m < 3 >/ hour and 1100g/m < 3 >, so the utility model is an ideal dust remover.

Description

The flat bag compound type dust remover of whirlwind rotary counter-blowing

The utility model belongs to the gas solid separation technology, specifically a kind of improved dust arrester.

Along with process of industrialization, industries such as iron and steel, cement, generating are growing, and a large amount of dust that produce in its industrial production are seriously endangered and coerced the environment of human survival along with exhaust jet stream, also cause the waste of a large amount of utilities.When the mankind recognized that deeply environmental protection has been related to spontaneous living or death, environmental protection equipment also just especially induced one to pay attention to.Deduster promptly is one of important composition in the supporting environmental protection equipment in the above industry.At present, adopt the cleaner of two big classes usually for the high dust source that forms, a kind of flat sack cleaner of blowback of being called a kind ofly is called centrifugal swinging deduster.The latter is called whirlwind swinging deduster and multitube swinging deduster again according to its architectural feature.The flat sack cleaner of blowback is called upper wind inlet type or lower wind inlet type respectively according to the position of air inlet.The upper wind inlet type blast is big, and the terylene cloth bag damages and is exceedingly fast, and is worthwhile inadequately economically.The dust that lower wind inlet type blows off from filter bag when the back-blowing device deashing is easily held up by ascending air and forms reentrainment of dust, directly causes the raising of filter chamber dust concentration, filtration resistance to strengthen the formation vicious circle.Though the effect of its dedusting is better, reach discharge standard easily, its treating capacity is less.Especially the dirt source that height is contained dust deals with just very difficult.Its processing air quantity of centrifugal cyclone formula deduster is big, but its dedusting is of poor quality, generally only can do pre-processing device, the use of connecting with the flat sack cleaner of blowback.The air outlet of swinging deduster is communicated with by the flat sack cleaner of external channel and blowback.Basically can overcome the shortcoming between the two although it is so, realize big air quantity and high-quality dust removing effects, but still can't overcome the intrinsic shortcoming of every kind of equipment itself, and the floor space increasing, corollary equipment involves great expense, the fitting operation complexity.

Goal of the invention of the present utility model is the advantages of two kind equipments to be got up to design a kind of deduster of brand-new composite structure, make it not only can realize big air quantity, high-quality dust removing effects, and to overcome the scarce limit that produces damage filter bag or reentrainment of dust, volume is little, cost is low, is easy under various occasions and the supporting use of dust pelletizing system.

Basic design of the present utility model is to select whirlwind swinging dust arrester for use, utilizes it to realize the pre-treatment of meal dirt, removes main dust content.Choose again the flat exhaust dust device with bag of blowback as post processing to reach national specified discharge standard, finish the technical indicator of high-quality dedusting.Complete machine is realized combination by the sharing structure of the two, forms an organic integral body.Utilize structural characteristics to form the duplex that suit is combined to form ventilating duct in the machine, finish being connected of two kinds of devices, the top air inlet structure that realize evenly, softens and close is in order to overcome the shortcoming of damaging filter bag and reentrainment of dust.

Further specifying goal of the invention of the present utility model below in conjunction with accompanying drawing realizes as protecting.

Accompanying drawing 1 is structural representation of the present utility model.

Wherein 1 is loam cake, and 2 is swing-arm type blowback mechanism, and 2A is a blowback mechanism necessary electromotor, 2B is the supporting blower fan of blowback mechanism, and 3 is clean case, and 4 is clean case is connected usefulness with middle housing ring flange, 5 is middle housing, 6 is air-vent, and 7 is filter bag and support, and 8 is card, 8A is a bearing, 9 are the fine powder ash bin that falls, and 9A is the fine powder passage, and 9B is thin grey ash hole, 9C is a filter cylinder, 9D is a filter chamber, and 10 is air inlet, and 11 is the spiral case case, 12 are the meal ash bin that falls, 12A is the meal passage, and 12B is the meal ash hole, and 13 is annular air-inducing passage.

By accompanying drawing 1 as can be seen two parts dust arrester be organic assembling all-in-one-piece how.Wherein meal in ash bin 9 and the whirlwind swinging dust arrester ash bin 12 that falls that falls of the fine powder in the flat exhaust dust device with bag of blowback all is a circular cone formula structure, the former is sleeved within the latter, the geometry symmetrical centre of two casings (9,12) overlaps, separate ash hole (9B, 12B) all is set under each casing, thereby makes whole deduster form two ash discharge passages (9A, 12A) that the thickness powder separates.Can not disturb the ash discharge effect mutually like this, and lay the foundation for later classified use.

It can also be seen that from accompanying drawing 1 whirlwind swinging dust arrester is a complete structure this compound type dust remover, the spiral case case 11 that is fallen ash bin 12 and be positioned at its top by meal constitutes, being provided with air-vent 9 in spiral case case 11 neighboring tangential directions and linking to each other with the dirt source channels, is a complete cyclone dust collector except not having spiral case case upper cover.In the design, do not establish the spiral case box cover, and make the fine powder of the flat exhaust dust device with bag of the blowback ash bin 9 that falls pass spiral case casing 9 and insert the meal ash bin 12 that falls.Spiral case case 11 extends upward and forms middle housing 5, and is fixed on the below of the flat exhaust dust device with bag card 8 of blowback by mounting flange 4.The setting of middle housing 5 makes a novel annular air-inducing passage 13 that shows unique characteristics that formed, and has realized air intake characteristic on the flexibility of flat bag of blowback or dust arrester.

From accompanying drawing 1 and then as can be seen, the flat exhaust dust device with bag of blowback system is by the fine powder ash bin 9 that falls, be positioned at fine powder the fall filter bag and the support 7 of ash bin top, be used for locating filter bag and isolate the card 8 of filter chamber, clean case 3, loam cake 1 and be positioned at swing-arm type blowback mechanism 2 on the loam cake 1 and necessary electromotor 2A and blower fan 2B form.The fine powder ash bin 9 that falls passes spiral case case 11 and is positioned at meal and falls in the middle of the ash bin 12.The fine powder ash bin 9 that falls extends upward and forms filter cylinder 9C, and filter cylinder 9C and middle housing form annular air-inducing passage 13, make through pretreated dirt source to carry out post-processed---bag-type dust by the annular canister road 13 even filter chamber 9D that enter that close that soften.Clean case 3 is provided with the air-vent 6 that air-vent promptly is this machine.

The compound type dust remover compact conformation that utilizes the utility model design to design, on-the-spot simple installation, floor space is little, and is cheap.During application, can be from the dirt source concentration that air inlet enters up to 1100g/m ³At first entering spiral case case 11 produces the whirlwind revolution and comes out meal is centrifugal, and fall into the meal ash bin 12 that falls along the spiral case tank wall, the air-flow that after giving processing, contains micro mist dirt under the guiding of air-introduced machine by annular air-inducing passage 13 to rising, enter the filter chamber 9D of the flat bag of blowback dust arrester equably by filter bag top, finish secondary separation by the flat cloth bag.The fine powder of separating automatically falls to entering the fine powder ash bin 9 that falls, because the air intake trend has been avoided the whereabouts dust and fundamentally eliminated reentrainment of dust, because special air intake mode has also reduced the blast to filter bag top, damages probability thereby lowered cloth bag greatly.Whole process can be finished automatic back blow deashing, source of the gas that need not be new, nitrogen or compressed air at any time according to the needs of filter bag.Carefully, meal separates respectively ash discharge automatically, very helps the management of later process and the utilization again of collecting dust.The outlet dust concentration can reach 50mg/m ³, handle air quantity and can reach 45600m ³/ hour, be present optimal device for recovering powder.

Claims (5)

1, a kind of compound type dust remover is characterized in that this deduster is combined into one by whirlwind swinging dust arrester and the flat exhaust dust device with bag two parts of blowback, forms the composite structure of ventilating duct in the suit.

2, according to the said compound type dust remover of claim 1, the meal that it is characterized in that falling fine powder in the flat exhaust dust device with bag of blowback ash bin (9) is sleeved on whirlwind swinging dust arrester falls within the ash bin (12), and the geometry symmetrical centre axle of two casing shells coincides.

3, according to the said compound type dust remover of claim 2, it is characterized in that two ash bins that fall (9,12) are provided with the separate ash hole that falls (9B, 12B) respectively, make two ash discharge passages (9A, 12A) that whole deduster forms slightly, fine powder separates.

4, according to the said compound type dust remover of claim 1, it is characterized in that the cyclone type dust arrester by meal fall ash bin (12) and be positioned at its top spiral case case (11) form, the air-vent (10) that is provided with along the peripheral tangential direction of spiral case case (11) links to each other with the dirt source channels, and the upper end of spiral case case (11) is fixed on the below of the flat exhaust dust device with bag card of blowback (8) by intermediate box (5).

5, according to the said compound type dust remover of claim 1, it is characterized in that the flat exhaust dust device with bag of blowback is by the fine powder ash bin (9) that falls, be positioned at fine powder the fall filter bag and the support (7) of ash bin (9) top, be used for locating filter bag and isolate the card (8) of filter chamber, clean case (3), loam cake (1) and the spiral arm blowback mechanism that is positioned at loam cake form, the fine powder ash bin (9) that falls passes spiral case case (11) and inserts and to be positioned at meal and to fall in the middle of the ash bin (12), the fine powder filter cylinder (9C) that grey casing extends to form upward that falls, filter cylinder (9C) forms annular air-inducing passage (13) with middle housing (5), and it promptly is the air-vent of whole deduster that clean case (3) is gone up the air outlet that is provided with.