CN100382875C

CN100382875C - Fume purifier

Info

Publication number: CN100382875C
Application number: CNB2004100503204A
Authority: CN
Inventors: 何景润
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-08-26
Filing date: 2004-08-26
Publication date: 2008-04-23
Anticipated expiration: 2024-08-26
Also published as: CN1739843A

Abstract

The present invention relates to a smoke gas purifying device which is provided with a computer automatic controlled desulphurization powder nozzle in a flue. A hollow axle of a washing cylinder is provided with a continuous one-piece or intermittent separated helical fan blade and a spiral line-shaped distributed water nozzle which is in a pipe column shape or a round hole shape, or both in the pipe column shape and the round hole shape. The upper part of a flocculation tank is provided with a flocculant adding inlet, a stirring rake is arranged in the tank, an electromagnetic valve is arranged at the lower end of the tank, and a screen net band type filter which is tilted with the horizontal line at 0 to 8 degrees is arranged in the tank. At the runtime, the sulfur dioxide is solidified into granules by chemical means, and the granules enter the smoke line. The smoke gas is sucked into the washing cylinder with water supplied by the hollow axle. The clean water which is changed into wastewater after dedusting enters the flocculation tank, and forms deposition dirt. The wastewater is changed to clean water after filtering, and the dirt and the clean water are recovered and re-used respectively. The dust abatement and the desulphurization of the device both achieve the national standard, and the cost of the basic construction and operation is decreased.

Description

Smoke eliminator

Affiliated technical field

This invention relates to gas purification, filtering flow field, especially smoke eliminator.

Technical background

The smoke pollution atmosphere, people once had many solutions for many years, but ubiquity or technical sophistication, cost an arm and a leg, or effect is unsatisfactory.The Chinese patent notification number is CN2038200u, discloses the hollow shaft that rotation is arranged in " rotating water jet device for eliminating smoke and dust " this device cylindrical shell, on the axle fan blade and water spout is arranged, and flue gas sucks in the cylindrical shell and carries out wet dedusting.This device though efficiency of dust collection is fine, has to adopt big water consumption to be kept, and the sewage of generation is too much, and the cesspool floor space is excessive, causes the operating cost height.The Chinese patent notification number is that CN2294769y discloses " a kind of waste gas purification complexes ", and this installs on flue inwall and cylinder inboard wall, and the ring-type pipe fitting of inject high pressure gas and highly pressurised liquid is arranged, and is equipped with the sewage separator of making filter course of slag.This device has good dust removing effects, but needs the air compressor of producing gases at high pressure; Though this device has the slag filtration layer, thorough precipitation separation dirt, waste water and sediment are difficult to recycling, so also cause the operating cost height.

Summary of the invention

The utility model provides a smoke eliminator, can realize that water consumption is few, the precipitation dirt thoroughly separates with water in the sewage, sewage becomes clear water, save cesspool, save air compressor, waste water and the recyclable utilization of flue dust sediment, reduce operating cost, and can remove the harmful substance sulphur in the flue gas.

Smoke eliminator, it is characterized in that: two helixes are arranged on the hollow shaft of cylindric washer, on a helix fan helical blade is arranged therein, equidistant water spout is arranged on another helix, have the sewage discharging mouth to be communicated with at the lower wall place of cylindric washer with the top of flocculation jar; The flocculation upper end has flocculant to add inlet, in the flocculation jar raker stirrer is arranged, and there is control flocculation dirt fluid-evacuation electromagnetic valve the lower end of flocculation jar; The screen cloth belt filter is arranged under electromagnetic valve, and this filter afterbody is than head height, screen plane and horizontal line have 0～8 degree inclination angle; The calcium oxide pulvis funnel that has desulfurization to use on flue in the lower end of this funnel, has the calcium oxide pulvis nozzle that stretches in the flue.

The fan helical blade is split continuous one or interrupted on hollow shaft; Water spout on the hollow shaft helix is that tubing string shape or circle hole shape or tubing string shape and circle hole shape are spaced apart.

Smoke eliminator, 1. fan helical blade and water spout, owing to adopted spiral to be distributed on the hollow shaft, in rotatablely moving, water droplet and soot dust granule both motions of spinning, make water droplet that more opportunity just be arranged, the more effective flue dust granule that shoots down, also have that water spout adopted circle hole shape with tubing string shape between the two every structure distribution, tubing string shape water spout, during the water droplet ejection bigger linear velocity and stroke are arranged, improve water droplet and effectively shoot down the short grained ability of flue dust; 2. by the effect that 1. produces, just caused using water wisely, sewage has reduced, and has alleviated burden just for the sewage disposal link; 3. since with flocculant again line dispose of sewage, make sewage flocculation precipitation, form flocculation dirt fluid, again through the screen cloth belt filter is arranged, just flocculation dirt fluid that effectively will precipitate and moisture from; 4. by 3. effect, can make water become clear, save cesspool, the flocculation dirt fluid after the dehydration becomes the thickness dirt, and the thickness dirt separates back recycling respectively with clear water, just reduce construction and operating cost; 5. owing to adopted desulfurizer, alleviate the harmful sulphur pollution atmosphere in the flue gas.

Description of drawings

Fig. 1 is the schematic diagram of smoke eliminator structure;

Fig. 2 is that the A of screen cloth belt filter among Fig. 1 is to view.

The specific embodiment

Air cleaning unit, the peace desulfurization has the pulvis nozzle 10 that stretches in the flue with calcium oxide pulvis funnel 9 in this funnel lower end on flue 13, and this nozzle adopts computer to control automatically, according to the content of sulfur material in the flue gas that records what, control the straying quatity of calcium oxide pulvis automatically.Sulfur material and calcium oxide pulvis generation chemical reaction, i.e. CaO+S → CaSO when work in the flue gas ₃, make sulfur curable become granule to enter in the flue gas.

Cylindric washer 3 is long to be 1700mm, and diameter is 1300mm, and its inner lining surface has adopted anticorrosive coat 2, and hollow shaft 4 diameters are 85mm, and this axle 4 is that movable sealing is connected with cylindric washer 3 two ends, is connected for movable sealing with feed pipe 7 at the right-hand member of cylindric washer 3 outer hollow shaft 4.Water spout 6 tubing string shape and circle hole shape and 6 ' diameter are 2mm, and tubing string shape water spout 6 is with circle hole shape water spout 6 ' both are spaced apart.Cylindric washer motor 23 is 7.5kw, and the rotating speed of hollow shaft 4 is 2900 rev/mins.The port of export of flue 13 is communicated with cylindric washer 3 right-hand members, and the axis of the port of export of flue 13 is at cylindric washer 3 radiuses 1/2nd places.When this device operation, supply water to hollow shaft 4 by feed pipe 7, hollow shaft is the direction rotation shown in arrow among Fig. 1, flue gas is inhaled in the cylindric washer 3 from flue 13, from water spout 6 with 6 ' water of ejection broken into water droplet and with the flue gas motion of spinning, at this moment, the flue dust solid particle in the flue gas is shot down by water droplet and enters in the water, makes clear water become sewage and falls cylindric washer 3 bottoms; Micro residue flue gas and steam enter atmosphere from the chimney 1 in cylindric washer 3 left sides.

Flocculation jar 15 is arranged below the cylindric washer 3, and be communicated with the sewage outlet 22 of cylindric washer 3, there is flocculant inlet 21 upper end of flocculation jar, is equipped with raker stirrer 17 in the flocculation jar and uses motor 20 to drive.A flocculation jar lower end is equipped with electromagnetic valve 16, the drainage of control flocculation dirt fluid.When work, the sewage of cylindric washer 3 is from mouthful 22 inflow flocculation jars 15 that drain the sewage away, by flocculant 21 places that enter the mouth, add flocculant, with the driving of motor 20, raker stirrer 17 in the flocculation jar slowly stirs, and at this moment has flocculation dirt fluid to form in the sewage, and is deposited to the bottom.

Under the flocculation jar magnetic valve 16 screen cloth belt filter 19 is arranged, this filter afterbody is higher than head, and screen plane becomes 7 degree inclinations angle with horizontal line.The afterbody of filter 19 has the packaging bag 18 of accepting dirt.When driving screen cloth belt filter 19 with motor 24, open electromagnetic valve 16, dirt fluid in the flocculation jar, fall above the screen cloth belt filter right-hand member head, filter, become the thickness dirt after flocculation dirt fluid is deviate from moisture content, this dirt falls into the packaging bag 18 that receives dirt and recycles when being transferred to the left end afterbody of filter 19 lentamente.Because filter 19 has the inclination angle, be beneficial to dehydration and dirt and break away from the screen cloth face easily.

There is waste water accumulator tank 14 screen cloth belt filter below, and the waste water that filters out from the dirt fluid becomes clear water, falls into waste water accumulator tank 14.

Have return pipe 12 and water pump 11 to connect between waste water accumulator tank 14 and the storage tank 8, when operation, water pump 11 will realize in the clear water suction storage tank 8 in the wastewater trough 14 that waste water recycles.

Claims

1. smoke eliminator comprises flue, cylindric washer, flocculation jar and screen cloth belt filter, it is characterized in that:

On the hollow shaft (4) of cylindric washer (3), two helixes are arranged, on a helix fan helical blade (5) is arranged therein, the water spout (6) that equidistantly distributes is arranged on another helix;

Sewage discharging mouth (22) is arranged on the lower wall of cylindric washer (3) and be communicated with the top of flocculation jar (15), the top of flocculation jar (15) has flocculant to add inlet (21), flocculation has raker stirrer (17) in jar (15), and there is flocculation dirt fluid-evacuation electromagnetic valve (16) lower end of flocculation jar (15);

Screen cloth belt filter (19) is arranged under electromagnetic valve (16), and this filter afterbody is than head height, the screen cloth face becomes 0～8 degree inclination angle with horizontal line;

Calcium oxide powder agent funnel (9) is arranged on flue (13), the calcium oxide pulvis nozzle (10) that stretches in the flue (13) is arranged in the lower end of this funnel.

2. smoke eliminator according to claim 1 is characterized in that:

On hollow shaft (4), fan helical blade (5) is continuous one, or interrupted split.

3. smoke eliminator according to claim 1 is characterized in that:

The water spout that on the helix of hollow shaft (4), equidistantly distributes be tubing string shape (6) or circle hole shape (6 ') or tubing string shape (6) with circle hole shape (6 ') between the two every position distribution.