CN2295916Y

CN2295916Y - Vertical desulfurizing dust collector

Info

Publication number: CN2295916Y
Application number: CN 97202000
Authority: CN
Inventors: 曹训仁
Original assignee: HAIJING EVIRONMENT PROTECTION EQUIPMENT FACTORY BEIJING
Current assignee: HAIJING EVIRONMENT PROTECTION EQUIPMENT FACTORY BEIJING
Priority date: 1997-03-26
Filing date: 1997-03-26
Publication date: 1998-10-28
Anticipated expiration: 2007-03-26

Abstract

The utility model relates to a vertical desulfurizing dust collector which is provided with a cyclone dust collector (3), a main body (4) and an ash discharging bottom seat (1). The vertical desulfurizing dust collector is characterized in that the inlet of the cyclone dust collector (3) is connected with a venturi (18) and a water nozzle (17). The main body (4) is a cylinder body. The upper part of the cylinder body is big, and the lower part is small. An anti-corrosive layer (5) is arranged in the main body (4). The upper end of the main body is provided with a cloth water tank, and the upper part of the main body is provided with a cyclone (11). The utility model mixes smoke gas with alkaline water, having strong capability of removing sulfur dioxide and acid objects. Through cyclone dust removing and the adhesion of the wall sprayed water of the main body, the dust removing effect is good, and the smoke gas contained moisture content is reduced by the cyclone. The main body is made of steel, and is easy to install, transport and maintain.

Description

Vertical desulfurizing dust-collector

The utility model relates to separation, particularly the separation of gas or steam; From gas, reclaim the steam of volatile solvent; Smog, the chemical cleaning method of flue gas or exhaust.

Boiler is the indispensable heat power equipment of industrial production.Boiler gives off harmful substances such as a large amount of flue dust and sulfur dioxide in combustion process, these harmful substances are to human body and moving, plant hazard is very big, therefore, national departments concerned has been formulated pernicious gas and has been allowed discharge standard to come all kinds of emission of harmful substances of strict control, efforts at environmental protection have been fundamental state policies of China, the emission of harmful substances amount has been an important indicator of environmental requirement in the control flue gas, but, existing boiler adopts the dry type cyclone dust collectors to carry out dedusting more, it can not remove sulfur in smoke, flue dust and sulfur dioxide discharge capacity all do not reach discharge standard, granite (claiming numb stone again) is though water dust scrubber can make the flue dust of flue gas and sulfur dioxide emissioning concentration reach the permission standard substantially, but this deduster exists the equipment heaviness huge, the cost height, easy-maintaining can not be shifted, shortcomings such as shock resistance difference.

The purpose of this utility model provides a kind of remove grit and acidic materials in the flue gas, easily makes, and maintenance, and the high vertical desulfurizing dust-collector of efficiency of dust collection are installed.

The purpose of this utility model realizes by following technical scheme, vertical desulfurizing dust-collector of the present utility model has cyclone dust collectors, the ash discharge base of the body on deduster top and deduster bottom, it is characterized in that the water nozzle that is connected to Venturi tube and in Venturi tube, sprays water in the entrance side pipeline of cyclone dust collectors, said body is the upper end circular section metal cylinder big than lower end diameter, in anticorrosive coat is arranged, the upper end of body has the cloth tank and the water inlet pipe of annular, body top is connected with cyclone, and cyclone comprises shell, grid and eddy flow plate.

Flue gas improves flow velocity through Venturi tube, alkaline water is sprayed into by nozzle, fully mix with flue gas and be vaporized into steam by the temperature of flue gas, water combines with grit in the flue gas increases its weight, flue gas enters cyclone dust collectors, make bigger flue dust fall to the ash discharge base, flue gas is up along body, and the cloth tank makes the inner surface of body be covered with the current that flow downward, tiny grit is adhered to and is swept away and dropped down onto in the ash discharge base, so, having passed through dedusting again, the eddy flow plate of flue gas and inclination is collided, this moment, temperature was the end of than, contained moisture content condenses upon on the eddy flow plate and becomes water droplet and fall in the flue gas, and fine particle is also adhered to, so through dedusting for the third time, at the whirlwind clarifier, in body and the eddy flow plate, flue gas constantly flows and fully mixes with steam, so desulfurization and efficiency of dust collection are all higher.

On cyclone top, also can have cyclone dust collectors, its tangential mouthful connects air-introduced machine, can carry out dedusting again.

In the ash discharge base jet water spout can be housed, the grit that falls can be washed away and carry out ash discharge.

Vertical desulfurizing dust-collector of the present utility model, body changes steel into, easily makes, and transportation is installed, and utilize the acidic materials neutralization in alkaline water and the flue gas and remove acid in the flue gas, through multistage dedusting, desulfurization, efficiency of dust collection is higher.

Below, in conjunction with the accompanying drawings and embodiments, vertical desulfurizing dust-collector of the present utility model is explained in detail.

Fig. 1 is the structure chart of the vertical desulfurizing dust-collector of the utility model;

Fig. 2 is the cutaway view of this vertical desulfurizing dust-collector along A-A face among Fig. 1;

Fig. 3 is the cutaway view of this vertical desulfurizing dust-collector along the another kind of structure of A-A face among Fig. 1;

Fig. 4 is the enlarged drawing of this vertical desulfurizing dust-collector another kind of structure of D portion in Fig. 1.

Fig. 5 is the amplification view of this vertical desulfurizing dust-collector along B-B face among Fig. 2.

As Fig. 1 Fig. 2, the vertical desulfurizing dust-collector of the utility model has cyclone dust collectors 3, the top of cyclone dust collectors 3 is connected with body 4, ash discharge base 1 is arranged at deduster 3 bottoms, has Venturi tube 18 in the suction line of cyclone dust collectors 3, also have bend pipe or other forms of pipe 16 before the Venturi tube flue gas is introduced Venturi tube, in pipe 16, has water nozzle 17, it can be a shower nozzle or a pipe end, spray into alkaline water, having induced duct 19 after the Venturi tube links to each other with the inlet of cyclone dust collectors 3, has cloth tank 7 on the top of body 4, fill with water by water inlet pipe 8 in the cloth tank, cloth tank 7 should be able to make water be distributed in the circumference of body 4 and flow downward along wall, so body becomes the up big and down small circular section cylindrical shell of diameter, make flow down and water power or drift ice phenomenon can not occur even and stable of liquid stream along its inclined-plane, improved desulfurization, the effect of deashing, the structure of cloth tank can be as shown in Figure 1, has frid 10, under base plate 6 is arranged, there is dividing plate 9 centre, water inlet pipe 8 is with in the water lead-ingroove, can there be an elbow water pipe end, so that water is moving along the water distribution concentrated flow, base plate 6 adopts discontinuous weldings with body 4, and leaves the gap in weldering place not.Water overflow promptly from dividing plate 8, and the skew wall along body 4 flows down in this gap, also can outside body 4, be added with as shown in Figure 4 by frid 21, the cloth tank 7 that base plate 22 is formed, water then flows down along the wall of body 4, more help the uniform and stable of moisture film, body is a steel, easily make, transportation, install, body internal surface has anticorrosive coat 5, as unorganic glass, enamel etc., upside at cloth tank 7, body 4 tops are connected with cyclone 11, it has a up-small and down-big shell 12, grid 13 and eddy flow plate 14 are housed in the shell, it is radially-arranged, and the center line of vertical section and body 4 (being vertical line) has the eddy flow plate of fixing 14 (as Fig. 2) of certain gradient, also parallel placement, vertical section and vertical line have the fixedly eddy flow plate 14 (as Fig. 3) of certain angle, the eddy flow plate can be the 1-3 layer, needs to decide on dewatering, and the vertical section of eddy flow plate 14 can have slick and sly groove 23, to increase surface area and wake turbulence effect, groove can vertically be covered with, and also can be to be interrupted to arrange that promptly one section has groove, one section is flat (as Fig. 5), on cyclone 11, be exhanst gas outlet after purifying, can be direct-connected with air-introduced machine, also can be connected with cyclone dust collectors 15, its tangential opening connects air-introduced machine flue gas is drawn, and can increase dehydration and dust removing effects.

In ash discharge base 1, can have slanting baffle 2, and have towards grey water pipe 20, when dust stratification to a certain degree, by towards grey water pipe 20 baths, the dust stratification of being deposited can be gone out and precipitate and handle, exempted the work of manpower ash disposal.

This deduster course of work is as follows:

Flue gas is driven by the air-introduced machine exhausting after the cyclone dust collectors 15 and enters pipe 16, when Venturi tube 18, improved flow velocity, be strong turbulent motion, water nozzle 17 ejection alkaline waters are housed before the trunnion of venturi, under high velocity air impacts, the droplet of the pure Cheng Gengxiao of powder, the temperature of flue gas is higher, after the water vapor with flue gas in flue dust and sulfur dioxide fully mix, tiny soot dust granule is condensed into bigger grit, and the alkali in the alkaline water neutralizes mutually with acidic materials such as sulfur in smoke and removes acidity, form neutral water droplet, flue gas makes bigger particle separation and sinks to the ash discharge base through cyclone dust collectors 3 again, flue gas is then up along body, tiny particle is adhered to by the liquid of body surface stream, and swept away to the ash discharge base by liquid stream, flue-gas temperature descends gradually in body, run into the eddy flow plate of inclination on top and condense, play the effect that removes moisture content, fine particle is also adhered to, through dedusting again, in the flow of flue gas process of deduster, make the flue gas can be fully and water effect and eliminate sulfur dioxide, so desulfurization and efficiency of dust collection are all higher.

Vertical desulfurizing dust-collector of the present utility model, utilize alkaline water (to boil the alkali waste water of stove buck and boiler blow-off as boiler, or the alkaline water of preparation) acts on mutually with flue gas and to reach the desulfurization purpose, and remove dust-laden, and make gas-water separation with the eddy flow plate, desulfurization with cyclone dust collectors and water surface liquid stream, dedusting, gas-water separation efficient height reduces the dust stratification and the high required maintenance work of flue-gas temperature of air-introduced machine, changes former granite structure into steel construction, in light weight, volume is little, easily makes transportation, installs and maintenance, efficient height for a kind of practicality, easily make transportation, the smoke desulfurization dust remover of installation.

Claims

1, a kind of vertical desulfurizing dust-collector, have cyclone dust collectors (3), be positioned at the body (4) on deduster (3) top and the ash discharge base (1) of deduster (3) bottom, it is characterized in that the water nozzle (17) that is connected to Venturi tube (18) and in Venturi tube, sprays water in the entrance side pipeline of cyclone dust collectors (3), said body (4) is the upper end circular section metal cylinder big than lower end diameter, in anticorrosive coat (5) is arranged, the upper end of body has the cloth tank (7) and the water inlet pipe (8) of annular, body (4) top is connected with cyclone (11), and cyclone (11) comprises shell (12), grid (13) and eddy flow plate (14).

2, vertical desulfurizing dust-collector as claimed in claim 1 is characterized in that having slanting baffle (2) and towards grey water pipe (20) in said ash discharge base (1).

3, vertical desulfurizing dust-collector as claimed in claim 1 or 2 is characterized in that said cloth tank (7) has frid (10), middle dividing plate (9) and with the base plate (6) of body (4) discontinuous welding.

4, vertical desulfurizing dust-collector as claimed in claim 1 or 2 is characterized in that said cloth tank (7) has the frid (21) and the base plate (22) in the body outside.

5, vertical desulfurizing dust-collector as claimed in claim 1 or 2 is characterized in that said eddy flow plate (14) has the 1-3 layer.

6, as claim 1 or 5 described vertical desulfurizing dust-collectors, it is characterized in that said eddy flow plate (14) distributes along housing (12) radial direction for polylith, and vertically and vertical line have the eddy flow plate (14) that the plate of certain angle is formed.

7, as claim 1 or 5 described vertical desulfurizing dust-collectors, it is characterized in that said eddy flow plate (14) is arranged in parallel for polylith and vertically and vertical line have the eddy flow plate (14) that the plate of certain angle is formed.

8,, it is characterized in that having slick and sly groove (23) on the said eddy flow plate (14) as claim 1 or 5 described vertical desulfurizing dust-collectors.

9, vertical desulfurizing dust-collector as claimed in claim 1 is characterized in that also being connected with cyclone dust collectors (15) on said cyclone (11) top.