CN2196509Y - Desulfurizing duster - Google Patents

Abstract

The utility model relates to a desulfurizing duster. In the inner cavity of a cuboid enclosure, the upper part of the inner cavity of the cuboid enclosure is provided with a horizontal inlet flue communicated with an operation flue. The operation flue is in inverse trapezoid shape; the lower part of the inner cavity of the cuboid enclosure is provided with a liquid pool. The inner sides of the two side plates of the case of two side plates of a casing and the corresponding position of the liquid level of the liquid pool are respectively provided with a guide block and the upper part of an abstraction block and the liquid pool and the inner sides of the horizontal inlet flue and the operation flue are provided with spiral vortex shells provided with spraying slots. The inner cavity of the spiral vortex shell is provided with a center tube connected with the end of the spiral vortex shell. The dust removal efficiency of the utility model can reach 92-98%, exhaust gas is in transparent shape, the flue gas desulfurization rate of the utility model is 40-60%, and the utility model is especially suitable for boilers of 0.5-35 ton / hour.

Description

Desulfurizing duster

The utility model relates to the desulfation dust-extraction device of Industrial Boiler or metallurgical furnace tail flue gas.

The method of existing flue gas desulfurization: the one, the coal separation desulfurization is selected the low-sulphur fuel of high-quality for use or the sulfur-bearing coal is carried out the coal washing desulfurization, with the SO in the control smoke evacuation ₂Content; The 2nd, desulphurization during combustion adopts solid sulphur formed coal or in-furnace calcium spraying (calcium carbide dirt, lime stone or artificial calcium-based desulfurizing agent etc.) desulfurization, with the SO in the control smoke evacuation ₂Content, but the hole that lime stone generates when thermal decomposition are easily by its product (CaSO ₄) block, so calcium utilization is lower, and increase bed drain purge.Moreover, be exactly exhaust gas desulfurization, this method sulfur removal technology difficulty is big, system complex, and need special equipment and add to put a large amount of desulfurizing agents, equipment investment is big, the operating cost height, so vast Industrial Boiler and kiln seldom come desulfurization with it, it is more and more serious to cause city acid rain to pollute.The multi-function dust remover that Chinese patent 90214584.3 provides, its structure is: in the shell inner cavity of cuboid, top is provided with the horizontal inlet flue, and the horizontal inlet flue interlinks with the work flue, and the work flue is trapezoidal; The bottom is provided with liquid pool, housing side plate medial surface in work flue end opening and liquid pool liquid level relevant position is equipped with guide pad, the compound arcuate plate is equipped with in the housing side plate inboard relative with guide pad, liquid pool top, horizontal inlet flue are provided with volute with work flue inboard, the volute inner chamber has central tube, and the flue gas after the dedusting is discharged from central tube.Though its efficiency of dust collection is more than 90%, smoke discharge amount＜200 milligram/square metre, desulfurized effect is not obvious.

The purpose of this utility model is to provide a kind of efficiency of dust collection height, the tangible desulfurizing dust-collector of flue dust desulfurized effect.

Solution of the present utility model is: in the inner chamber of cuboid shell, top is provided with the horizontal inlet flue, and the horizontal inlet flue interlinks with the work flue, and the work flue is trapezoidal; The bottom is provided with liquid pool; On housing side plate inboard, work flue end opening and liquid pool liquid level relevant position, guide pad is housed, the diversion piece is equipped with in another side plate inboard of the housing relative with guide pad, liquid pool top, horizontal inlet flue and the work flue outside are provided with the spiral volute, be interval with spray groove on the spiral volute, spiral volute inner chamber is provided with central tube, and central tube links to each other with the spiral volute is terminal.

During work, the flue dust that boiler or kiln emit changes the work flue that is down trapezoidal shape over to through the horizontal inlet flue, after the work flue quickens, high velocity jet is on the liquid level of liquid pool, by the guide pad effect, most of grit is absorbed and sedimentation by liquid pool, and the small part flue dust is with liquid fluctuating and through the effect of diversion piece, the water that will have a small amount of flue dust is introduced the spiral volute, quickens to flow and separate automatically in volute with flue dust.By the spray groove that is provided with on the spiral volute, guide the separated peripheral dirt liquid that is in, progressively and the original flue dust to entering the work flue repeatedly sprays, guarantee the abundant effect of spray dirt liquid and flue gas and desulfurization, guarantee the spray original flue dust of the abundant absorption of dirt liquid and dedusting, and the flue gas in the volute, cleaner because of peripheral dirt liquid eliminating, clean flue gas is discharged through central tube.In the use, also can remove desulfurizing agent, or in liquid pool, add alkaline agent, to guarantee desulfurized effect in the spray of inlet flue duct place.

Adopt the utility model, the dust removal efficiency of flue gas is up to 92-98%, flue gas is transparence, cannot see flue gas in the chimney is flowing, the exhaust gas desulfurization rate is 40-60%, if give hot device with heat pipe air and heat pipe economizer is used, can improve boiler efficiency 5-10%, improve boiler output 10-20%, be applicable to that 0.5-35 ton/hour boiler and kiln use.

Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing: 10 tons of/hour boiler desulfurizing dust-collectors.

Accompanying drawing is the structural representation of the utility model embodiment.

Cuboid shell 8 is of a size of 2.5 * 2.5 * 4 ［ rice ］, in its body shell, top is provided with horizontal inlet flue 1, inlet size is 1 * 2.5 ［ rice ］, horizontal inlet flue 1 interlinks with work flue 4, work flue 4 is trapezoidal, its 1 * 2.5 ［ rice ］ that is of a size of suitable for reading, end opening is of a size of 0.6 * 2.5 ［ rice ］, is 0.6 meter apart from the height of liquid level, and the medial surface of shell 8 side plates is provided with the guide pad 7 of right angled triangle, the size of two right-angle sides is respectively 0.4 and 0.8 meter, the top of guide pad 7 is positioned at the end opening place of work flue 4, and the bottom is partially immersed in the liquid level, about about 30 ° of the angle of its inclined working and housing 8 side plates; In another side plates of guide pad 7 corresponding housings 8, also be provided with the diversion piece 11 of right angled triangle, the both sides size of this right angled triangle is 0.5 meter, and major part is exposed liquid level, fraction is immersed in the liquid level, about about 45 ° of the angle of its inclined working and housing 8; Above liquid pool, horizontal inlet flue 1 and work flue 4 inboards are provided with the spiral volute, the spiral volute is divided into big volute 15, two volutes 3, three volutes 5, four volutes 13, big volute 15 and two volutes 3, two volutes 3 and three volutes 5, three volutes 5 and four volutes, 13 joints are respectively equipped with spray groove 2,6,12, and the tangential direction with its respective point on the spiral volute is consistent respectively in spray groove 2,6,12 positions; Four volutes, 13 upper end are equipped with central tube 14, and central tube 14 diameters are 1.2 meters, and the bottom of four volutes 13 is 0.6 meter apart from the minimum range of liquid level.

Claims (1)

1, desulfurizing dust-collector, in the inner chamber of cuboid shell, top is provided with the horizontal inlet flue, and the horizontal inlet flue interlinks with the work flue, and the work flue is trapezoidal; The bottom is provided with liquid pool; On housing side plate inboard, work flue end opening and liquid pool liquid level relevant position, guide pad is housed; Liquid pool top, horizontal inlet flue and work flue inboard are provided with the spiral volute, spiral volute inner chamber is provided with central tube, central tube links to each other with the spiral volute is terminal, and it is characterized in that: the diversion piece is equipped with in another side plate inboard of the housing relative with guide pad, is interval with spray groove on the spiral volute.

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