CN2232795Y

CN2232795Y - Desulfurizing dust remover

Info

Publication number: CN2232795Y
Application number: CN 95208608
Authority: CN
Inventors: 高良玉; 丁建军; 王继生
Original assignee: LUOYANG MINE MACHINERY ENGINEE
Current assignee: LUOYANG MINE MACHINERY ENGINEE
Priority date: 1995-04-10
Filing date: 1995-04-10
Publication date: 1996-08-14
Anticipated expiration: 2005-04-10

Abstract

The utility model relates to a desulfurization dust collector of dusty flue gas, it is including the dust remover body with store up grey part, the dust remover body has a double-deck barrel, and interior barrel upper portion side passes through outer barrel through the intake pipe and is connected with the hybrid tube, and heat exchanger is connected to the hybrid tube other end, and the throat department of hybrid tube is provided with a set of steam jet, and double-deck barrel upper portion sets up the dehumidifier, and the toper bottom inserts and stores up the ash incasement, and the dehumidifier is by the connecting pipe intercommunication with heat exchanger, the utility model discloses a design of multiple dust removal desulfurization principle forms, and it is good to have a dust removal effect, and the characteristics that the desulfurization rate is high, and structural design is reasonable in addition, and the cost is.

Description

Desulfurizing dust-collector

The utility model relates to the desulfation dust-extraction device of ash-laden gas, mainly proposes a kind of high-efficiency desulfurizing dust-collector.

SO in the smoke contamination, particularly flue gas ₂Endanger more very, and the most of cities of China are subjected to SO ₂Pollute very seriously, some area even the acid rain phenomenon occurs is seriously jeopardized people ' s health and is influenced industrial and agricultural production; In order to reduce atmosphere pollution, present various boilers all have been equipped with deduster, but seldom are furnished with the desulfurization facility for medium small boiler; Deduster in main at present the use has following several: 1, decanter type deduster, and bulky, and efficiency of dust collection is low, can not remove SO ₂2, rotoclone collector, dust-collecting efficiency is general, can not remove SO ₂3, water dust scrubber, water consumption is big, to SO ₂Removal efficiency generally is no more than 50%; 4, filter bag type dust-precipitator, efficiency of dust collection is higher, but can not remove SO in the flue gas ₂, easy obstruction in service, cost is also higher; 5, cottrell, efficiency of dust collection is high but can not sulphur removal, and the equipment one-time investment is big, and operant level requires high.

The purpose of this utility model promptly is to propose a kind of dedusting, high-efficiency desulfurizing dust-collector that desulfuration efficiency is high, and it is simple in structure that it is had, the lower and advantage of wide range of application of cost.

The utility model is finished the technical scheme that its invention task taked; Include deduster body part and the grey part of storage, deduster has an inside and outside double-layer barrel, the air inlet pipe of inner barrel upper side is passed through outer cylinder body and is connected mixing tube, the mixing tube other end is communicated with into mouth, be provided with steam nozzle in the mixing tube with the steam supply pipeline connection, have the hole that rule distributes on the inner barrel cylindrical wall, the conical lower portion of inside and outside cylindrical shell is inserted storage ash part and is full of in the ash storage box of liquid water.

Advancing mouth can be connected with mixing tube by a heat exchanger, in order to send into mixing tube behind the flue gas cool-down that will pass through.

Double-layer barrel top can be provided with moisture eliminator, and moisture eliminator is communicated with by tube connector with heat exchanger, in order to heating after air-introduced machine is sent into chimney through the flue gas of moisture eliminator.

One group of nozzle that is circular layout can be installed in inner barrel top, and a reflection cone is equipped with in the bottom.

Dividing plate is set between the inside and outside cylindrical shell and connects one by dividing plate.

During work, band presses ash-laden gas to enter from air inlet, enters mixing tube after the heat exchanger of the flowing through cooling and acutely mixes herein with steam, owing to SO in steam that is all " gas phase " and the flue gas ₂Contact, interfacial force is minimum, thereby makes SO ₂Molecule and H ₂The probability of O molecule contact increases greatly, has overcome traditional spray-on process, and washing method removes SO ₂The drawback that efficient is extremely low makes SO ₂Removal efficiency more than 96%, SO simultaneously ₂Molecule suction back generates H ₂SO ₃Play neutralization reaction with the alkaline matter in the dust, thereby more help SO ₂Absorption, form acid mist, steam is after nozzle sprays, the acting temperature that expands reduces; Water vapour partly condenses into droplet, begin to adsorb dust, make the dust granules aggegation become big, at this moment the flue gas that is mixed with steam begins to enter the dust catcher cylindrical shell and rotation descends, water droplet acid mist and dust granules are shifted to inner tube wall gradually up to entering between the inside and outside cylindrical shell under centrifugal action, because the effect of longitudinal baffle between the inside and outside cylindrical shell, the concentrated band that forces dust and water droplet acid mist to be formed is in diffusion sedimentation state, be sunken at last in the bottom of storage ash-pit, become the clean flue gas that only contains a small amount of acid steam, through the cylindrical shell conical section, reflection cone, form on the inward turning flow direction and enter discharge pipe, simultaneously because one group of annular nozzle is equipped with on cylindrical shell top, eddy flow and outer eddy flow intersection made flue gas after being purified no longer take away dust in the water smoke of ejection was in, and flue gas enters heat exchanger again after discharge pipe enters the moisture eliminator dehydration of acid mist, reheated after air-introduced machine enters chimney, through the 200mg/m of the content in the fume emission after handling like this much smaller than national regulation ³, SO ₂Content only is 1.02mg/m ³, be without 5% before this equipment.

Desulfurizing dust-collector of the present utility model has good dedusting effect, desulfurization degree height, the characteristics of wide adaptability owing to adopted multiple dust-removal and desulfurizing principle to design.

Desulfurizing dust-collector reasonable in design of the present utility model, the cost cost is lower.

The utility model embodiment provide the following drawings;

Accompanying drawing 1 is the utility model example structure schematic diagram.

Accompanying drawing 2 is the shell portion structural representation.

Accompanying drawing 3 is A-A profile of Fig. 2.

Accompanying drawing 4 is B-B profile of Fig. 2.

Accompanying drawing 5 is the heat converter structure schematic diagram.

Structure as shown in drawings, the utility model front portion is that a rectangle advances mouth 1 and heat exchanger 2 is linked together, be connected with a mixing tube 4 thereafter, it can be larynx shape pipe, the steam nozzle 16 of a composition rectangular arrangement is equipped with at the aditus laryngis place of larynx shape pipe, larynx shape pipe 4 tangentially links by one section rectangular tube and inner barrel 9, have the elliptical aperture of many rules on inner barrel 9 cylindrical walls, outer cylinder body 10 is enclosed within outside the inner barrel 9, be linked together by 4 longitudinal baffles 15 between them, one group of annular nozzle 8 is equipped with in the top of inner barrel 9, reflection cone 11 is equipped with in the conical shell bottom, double-layer barrel 9, moisture eliminator 7 is equipped with on 10 tops, it connects by one section rectangular tube with heat exchanger 2, heat exchanger 2 connects with air outlet 3, outer cylinder body 10 cylindrical parts are welded with a ring-shaped bearing 17, by 4 bracket supports on ground, inner barrel 9 all is immersed in the water of 12 li of ash storage boxs with the conical lower portion of outer cylinder body 10, submergence is not less than 100mm, ash storage box 12 is fixed on the cylinder stent, a little storage tank 5 is equipped with on its next door, be communicated with or separate with ash storage box 12 by push-pull valve 6, alkaline matters such as lime are housed in the little storage tank, open valve 6 alkali lye and just slowly be diffused in the ash storage box 12 waste water of neutral zone acidity.The inclined bottom of ash storage box 12 is equipped with stop valve 13, opens stop valve 13 and makes the mortar of ash storage box 12 bottoms flow into active box 14.

The steam nozzle connects with boiler steam supply pipeline, and the tap water supply pipeline is arranged on inner barrel top and supplies water to little storage tank.

Moisture eliminator 7 can adopt the structure of existing common moisture eliminator, and heat exchanger is made of a part 18, shell 20, the fin 19 of air inlet pipe.The hotter flue gas of being come in by air inlet pipe during work flows through 18, heats the flue gas that comes out from moisture eliminator in the shell 20 of flowing through by fin 19 heat radiation.

Claims

1, a kind of desulfurizing dust-collector, of the present utility model being characterised in that includes deduster body part and the grey part of storage, the deduster body has an inside and outside double-layer barrel, the air inlet pipe of inner barrel (9) upper side is passed through outer cylinder body (10) and is connected mixing tube (4), mixing tube (4) other end is communicated with into mouth (1), be provided with steam nozzle (16) in the mixing tube (4) with the steam supply pipeline connection, have the hole that rule distributes on inner barrel (9) cylindrical wall, the conical lower portion of inside and outside cylindrical shell is inserted storage ash part and is full of in the ash storage box (12) of liquid water.

2, according to the described desulfurizing dust-collector of claim 1, feature is dividing plate (15) to be set between the inside and outside cylindrical shell (9) (10) and to connect one by dividing plate (15).

3, according to the described desulfurizing dust-collector of claim 1, feature is that a reflection cone (11) is equipped with in inner barrel (9) bottom, and one group of nozzle that is circular layout (8) is equipped with on top.

4, according to the described desulfurizing dust-collector of claim 1, feature is that into mouth (1) can be connected with mixing tube (4) by a heat exchanger (2).

5, according to claim 1 or 4 described desulfurizing dust-collectors, feature is that mixing tube (4) can be larynx shape pipe, and steam nozzle (16) can be arranged on the aditus laryngis place of larynx shape pipe.

6, according to the described desulfurizing dust-collector of claim 1, feature is that double-layer barrel top can be provided with moisture eliminator (7), and moisture eliminator (7) is communicated with by tube connector with heat exchanger (2).

7, according to the described desulfurizing dust-collector of claim 1, feature is the little storage tank (5) that alkaline matter is equipped with in ash storage box (12) one side settings that liquid water is housed, connects with ash storage box (12) by valve (6).