CN2616814Y - Fully automatic water-saving wet dust-removing and desulfurizing device - Google Patents

Abstract

The utility model discloses an automatic water-saving wet dedusting and desulfurizing device, which belongs to auxiliaries of boiler. The utility model comprises a desulfurization room, a secondary desulfurization room, a spiral dedusting room, a solid-liquid separation room, an air-water separation room and a screw dust cleaner. A nozzle is arranged in a desulfurization room; the secondary desulfurization room is spiral case-shaped; the inlet and outlet can be rotated by 180 degrees; the case has a control liquid surface; the dedusting room is spiral cone-shaped; the outlet pipe is provided with a baffle; the solid-liquid separation room is provided with a water-level automatic control valve, an overflow pipe and the screw dust cleaner; a cyclone separator is arranged in the lower part of the air-water separation room and a converse baffle is arranged in the upper part. The utility model is an integrated automatic device that can save water, remove dust, sulfur and ash; the utility model has the advantages of small occupied area, high efficiency, convenient management and reduced labor intensity and applicability to various coal-burning boilers.

Description

Fully automatic water-saving type wet dust removal desulphurization device

The utility model relates to the boiler accessory machinery field, is the automatic dedusting of a kind of wet method, desulfurization, ash discharge, water saving fixtures specifically.

China is world big coal country, and warming oneself, supply steam mainly is that the dependence fire coal is main, and sulfur-bearing is through the sulfur dioxide of burning generation in the coal, be discharged to atmosphere with flue gas through chimney, run into water in air, form acid rain, not only environment is polluted, and direct harm humans health.

Existing both at home and abroad like product great majority exist dedusting, desulfuration efficiency not high, and it is unclean dewater, ash discharge band water, shortcoming such as ash discharge is required great effort, and floor space is big.

The utility model is developed fully automatic water-saving type wet dust removal desulphurization device through repeatedly trial-production use after the improvement.Its dedusting, desulfuration efficiency height, take up an area of little, dedusting, desulfurization, ash discharge, automatically, not draining, water recycle, and reduces labour intensity, reduces use cost, it is convenient to reach bookkeeping.Applicable to various coal-burning boilers and industrial sulfur dioxide smoke and dust treatment.

The technical solution of the utility model is as follows:

In desulfurization chamber, adorn one with smoke movement direction nozzle in the same way, the desulfurizing agent droplet that is gone out by nozzle ejection during flow of flue gas is caught atomizing humidifying performance and is mixed, also rotated at a high speed simultaneously, rush at desulfurizing agent liquid level in the secondary desulfurization chamber shell, make sulfur dioxide in flue gas, micronic dust is desulfurized agent and absorbs washing, through 180 ° of revolutions rapidly, flow to the spiral dirt pocket, flue gas rotates through 315 ° of high speed centrifugations in the spiral cone, forms vortex flow from bottom to top and is stopped by three layers of semicircle baffle plate in the escape pipe, complications flow into air-water separation chamber, under cyclone and three reverse plate washer effects, centrifugal dehydration once more, flue gas after being purified is discharged.At spiral dirt pocket inwall, lay the wear-and corrosion-resistant coating, can effectively improve service life of equipment.

Below in conjunction with accompanying drawing the utility model is further described:

Fig. 1 is a structural representation of the present utility model, and Fig. 2 is the structure of nozzle schematic diagram,

Fig. 3 is the structural representation of cyclone, and Fig. 4 is the structural representation of spiral dirt pocket,

Fig. 5 is the structural representation of spiral dragging ash machine.

Form by desulfurization chamber 1, nozzle 2, air-water separation chamber 3, cyclone 4, secondary desulfurization chamber 5, spiral dirt pocket 6, Separation of Solid and Liquid chamber 7, overflow pipe 8, water level autocontrol valve 9, spiral dragging ash machine 10 from the utility model shown in Fig. 1.

Forming by cyclone 11, nozzle head 12 shown in Fig. 2 nozzle 2.The cyclone water inlet is tangential shape, and the nozzle head delivery port shrinks earlier and afterwards launches 120 °.

Forming by flow guiding head 13, whirlwind axle 14, blade 15 shown in Fig. 3 cyclone 4.Flow guiding head is that 60 ° of cones and cylindrical whirlwind axle and 6 blades are welded into one, and the bending blade degree is 120 °, and it is parabola shaped that leaf margin is.

Forming by import base plate 16, escape pipe 17, plate washer 18, dirt pocket shell 19, leakage ash pipe 20 shown in Fig. 4 spiral dirt pocket 6 and Figure 1A-A cutaway view.The import base plate is that 45 ° of spiralitys and 6 welderings of 315 ° of spiral dirt pockets are one, and the bottom is leaked ash pipe with back taper and welded, the ratio of import height and cone height 1.9: 1, and top is connected through flange with the back taper escape pipe, is welded with three layers of semicircle plate washer that blocks water in the escape pipe.

Form by ash hole 21, dragging ash machine shell 22, helical axis 23, ash inlet 24 shown in Fig. 5 spiral dragging ash machine 10.Ash hole ash inlet and dragging ash machine shell are welded into integral body, interior dress helical axis, and the helical axis bottom is welded with helical blade, and the water part is an optical axis.

Flue gas flow: flue gas enters in the desulfurization chamber (1) and mixes through the rotation of nozzle (2) spray atomizing high speed, rush at desulfurizing agent liquid level in secondary desulfurization chamber (5) shell, be absorbed washing, turn to through 180 °, separated spiral dirt pocket (6) the formation high speed that enters of flue gas particle is rotated the vortex flow rising, flue gas is once more by centrifugal dewatering, through the semicircle three layers of plate washer of back taper escape pipe (17) (18) bump, three centrifugal dust-removing dehydrations of flue gas, enter air-water separation chamber (3) and through cyclone (4) and reverse plate washer micronic dust and water are separated for four times, the flue gas of purification is through top outlet discharge.

Isolated flue dust leaks the spiral dragging ash machine ash inlet (24) that ash pipe (20) drains to Separation of Solid and Liquid chamber (7) bottom connection through spiral dirt pocket (6) bottom, rotate through helical axis (23) low speed (15 rev/mins), from mortar, pull lime-ash out, leaving liquid level under the promotion of blade stops, push to mortar below leaning on and promote water squeezing, the ash that will wet is discharged from ash hole (21).

The indoor water level height in Separation of Solid and Liquid chamber (7) is by top water level autocontrol valve (9) overflow pipe (8) control.

Claims (7)

1, fully automatic water-saving type wet dust removal desulphurization device comprises desulfurization chamber, secondary desulfurization chamber, spiral dirt pocket, air-water separation chamber, Separation of Solid and Liquid chamber, overflow pipe, water level autocontrol valve, spiral dragging ash machine.It is characterized in that: a nozzle is housed in desulfurization chamber, the secondary desulfurization chamber is a scroll casing shape, one control liquid level is arranged in the shell, 45 ° of spirality base plates are equipped with in spiral dirt pocket import department, and dirt pocket is 315 ° of spiral taper structures, and the escape pipe inwall has the three layers of plate washer that blocks water, in the air-water separation chamber bottom cyclone is housed, plate washer is equipped with on top, on top, Separation of Solid and Liquid chamber water level autocontrol valve and overflow pipe is housed, and the spiral dragging ash machine is equipped with in the bottom.

2, according to right 1 described fully automatic water-saving type wet dust removal desulphurization device, it is characterized in that: a nozzle is housed in the desulfurization chamber, and its water inlet is tangential shape, and delivery port shrinks earlier and afterwards amplifies 120 °.

3, according to right 1 described fully automatic water-saving type wet dust removal desulphurization device, it is characterized in that: the secondary desulfurization chamber is a scroll casing shape, passes in and out 180 ° and turns to, and a control liquid level is arranged in the shell, imports and exports section ratio 1: 0.8.

4, according to right 1 described fully automatic water-saving type wet dust removal desulphurization device, it is characterized in that: 45 ° of spirality base plates are equipped with in spiral dirt pocket import department, dirt pocket is 315 ° of spiral taper structures, the ratio of import height and cone height 1.9: 1, back taper escape pipe, inwall are equipped with three layers of semicircle plate washer that blocks water.

5, according to right 1 described fully automatic water-saving type wet dust removal desulphurization device, it is characterized in that: 6 blades of cyclone are equipped with in the air-water separation chamber bottom, and the bending blade degree is 120 °, the leaf margin parabolic type, and three reverse plate washers are equipped with on top.

6, according to right 1 described fully automatic water-saving type wet dust removal desulphurization device, it is characterized in that: water level autocontrol valve and overflow pipe are equipped with in top, Separation of Solid and Liquid chamber, and the spiral dragging ash machine is equipped with in the bottom.

7, according to right 1 described fully automatic water-saving type wet dust removal desulphurization device, it is characterized in that: spiral dragging ash machine helical axis bottom is welded with helical blade, and top is optical axis, 15 rev/mins of rotating speeds.

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