CN2194758Y

CN2194758Y - Perbathing water-film combination smoke-eliminating dust-reducing and desulfurizing apparatus

Info

Publication number: CN2194758Y
Application number: CN 94227220
Authority: CN
Inventors: 王为民; 梅家明
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-02-26
Filing date: 1994-02-26
Publication date: 1995-04-19
Anticipated expiration: 2004-02-26

Abstract

The utility model provides a perbathing water-film combination smoke-eliminating dust-removing and desulfurizing apparatus matched with boilers and kilns, comprising a perbathing chamber and a dust removing body with a dust flushing slot and an air guiding port communicated with the perbathing chamber. The air guiding port of the dust removing body is connected with an air guiding passage, and the other end of the air guiding passage is provided with a draught fan. A water-film shower is arranged in the dust removing body. An archimedian screw evolvent spiral casing is also arranged in the dust removing body. Water fog and water film are combined for twice smoke elimination, dust removal and desulfurization, the effects of smoke elimination and dust removal are remarkable, dust removing efficiency can reach more than 97 %, and the utility model has convenient maintenance, long service life and high safety.

Description

Perbathing water-film combination smoke-eliminating dust-reducing and desulfurizing apparatus

The utility model relates to the supporting pre-bath water membrane composite smoke-eliminating dust-controlling desulfurizing apparatus of a kind of and large, medium and small type Industrial Boiler, power plant boiler and stove with smoke abatement and dust control function.

Domestic industry boiler or general stove often adopt branch dry dust removal device or wet dust removal device at present.Destatic beyond the deduster in the dry dust removal device, other deduster efficiency of dust collection is lower, and the operating cost height, and maintenance difficult has only below 80% as the efficiency of dust collection of flat bag filter, and the impact type rotary dust wiper has only below 60%; Though and the efficient of electrostatic precipitator is higher, so unstable, voltage pulsation directly influences efficiency of dust collection and cost is very expensive so promote difficulty because of influenced by spread of voltage.

Wet-type granite venturi water film deduster efficiency of dust collection can reach 92%, and service life is also longer, but still has following shortcoming:

1, poor to the dehydration property of flue gas, the water transport of air-introduced machine band is changeed, thereby caused air-introduced machine shake, concussion, the lighter influences boiler output, and weight person shakes bad air-introduced machine and burns high power motor, and major accident appears in heating boiler, has a power failure to stop production;

2, dedusting body inner product ash is serious, influences efficiency of dust collection, and it is difficult to safeguard.

In view of above reason, the purpose of this utility model is for a kind of dedusting smoke elimination efficient height is provided, long service life, and safety, maintaining is easy to pre-bath water membrane composite smoke-eliminating dust-controlling desulfurizing apparatus.

Prebathing chamber is arranged in the utility model, the dedusting body that contains sluiceway and air-vent that communicates with prebathing chamber, be connected to the air-inducing passage on the dedusting body air-vent, the other end of air-inducing passage is equipped with air-introduced machine, be provided with moisture film shower bath (referring to Fig. 1) in the dedusting body, air-introduced machine can join by pipeline and chimney, exhaust gas dust once adds through prebathing chamber and enters in the dedusting body current in the moisture film shower bath behind the water and wash away washing once more, enter settling pool through the sluiceway of dust thing in the dedusting body after the washing, enter in the chimney through air-inducing passage through the flue gas of twice processing.

The sealing overflow launder that places on the dedusting body is arranged in the above-mentioned moisture film shower bath, stretch into the overflow guide in the sealing overflow launder, formed overflow ducts between overflow guide and sealing overflow launder, water inlet pipe one end stretches in the sealing overflow launder (referring to Fig. 1), form water film dedusting, and to flow out the current size in the overflow launder be to decide with entering in the dedusting body flue dust.

Above-mentioned dedusting body has Archimedian screw involute-type spiral case (referring to Fig. 1, Fig. 2) on the channel position between prebathing chamber and dedusting body, enter Archimedian screw involute-type spiral case through the flue dust after pre-the bath under the suction of air-introduced machine and rise along the rotation of dedusting inner body wall.

Dehydration inner core (referring to Fig. 1) is arranged in the above-mentioned dedusting body, can further make gas-water separation, take off large quantity of moisture, significantly reduced the moisture that enters air-introduced machine, thereby solved the defective that air-introduced machine band water can not normally move.

Above-mentioned prebathing chamber, dedusting body, dehydration inner core adopt the granite material to make (referring to Fig. 1), and be acidproof corrosion-resistant, intensity height, long service life.

The flue dust of discharging from boiler flue enters the prebathing chamber shower the utility model through the pressure fan air channel, entering Archimedian screw involute-type spiral case through the flue dust after the shower under the suction of air-introduced machine rises along the rotation of dedusting inner body wall, under the high speed centrifugation motion, band pigment dirt in the flue dust is caught on the ancient piece of jade, round, flat and with a hole in its centre, and the water that is overflowed by the overflow launder on the dedusting body will be washed away the bottom with the water dust grain and flow into the heavy grey depositing reservoir that sluiceway arrival links to each other with sluiceway automatically again.

The utility model is compared with existing dust arrester, has following advantage:

1, smoke dispersal, dust removal and desulphurization efficient height can reach 98%, exceeds more than 8% than the standard of national environmental protection department defined, can reach dark brown Lin Geman primary standard;

2, can be dissolved in the water the sulfur dioxide in the flue dust and flow into heavy grey depositing reservoir through water smoke, twice processing of moisture film and carry out acid-base neutralization, the water of neutralization can continue this device of circulation inflow and utilize.Do not drain to the external world, free from environmental pollution, the lime-ash of process post precipitation can be used as pays the product use;

3, can not block up slag by dust stratification in the dedusting body, buck enters sluiceway automatically, and discharging lime-ash sewage smoothness is difficult for stopping up drain passage;

4, maintaining is very convenient, stable equipment operation, and also the annual at most maintenance of long-time running is once.Air-introduced machine operation did not continuously have the machinery vibrations in thousands of hours, sent flue gas has not stopped to damage air-introduced machine with water accident;

5, adopt high-quality granite to process, long service life can reach more than 30 years;

6, cheap, small investment only is the sixth of electrostatic precipitator;

7, applied widely, be applicable to 1 ton～130 tons industry, electric boiler, be specially adapted to large, medium and small cities and towns and the boiler and the stove of heat supply fire coal are arranged, and can move with heating boiler.

Describe embodiment of the present utility model in detail below in conjunction with accompanying drawing:

Fig. 1 is the utility model structural representation

Fig. 2 is the worm frame schematic diagram

Communicate with cartridge type dedusting body 3 by passage 2 referring to Fig. 1, prebathing chamber 1.Prebathing chamber 1 air delivery duct 16 communicates with boiler.Archimedian screw involute-type spiral case 4 is positioned on the position of passage 2.Ring packing overflow launder 6 in the moisture film shower bath 5 is positioned at dedusting body 3 tops, and the overflow guide 7 and 6 of the overflow launders that stretch in the overflow launder 6 have formed overflow ducts 8.Water inlet pipe 9 one ends stretch into the sealing overflow launder 6 in and the other end can lead to extraneous water source.Dedusting body 3 bottoms are provided with the sluiceway 10 that can be connected with settling pool.Dehydration inner core 11 places dedusting body 3.An end that is connected to the air-inducing passage 13 of dedusting body 3 top air-vents 12 is communicated with air-introduced machine 14, and air-introduced machine 14 can be communicated with chimney 15.

The utility model material adopts the retrofit of high-quality granite process to become the building block of various different sizes, is aided with epoxy resin as adhesives with sodium silicate mastic.

The utility model also can adopt other nonmetallic materials such as fiberglass.

Claims

1, pre-bath water membrane composite smoke-eliminating dust-controlling desulfurizing apparatus, it is characterized in that in the described device prebathing chamber being arranged, the dedusting body that contains sluiceway and air-vent that communicates with prebathing chamber, be connected to the air-inducing passage on the dedusting body air-vent, the other end of air-inducing passage is equipped with air-introduced machine, is provided with the moisture film shower bath in the dedusting body.

2, pre-bath water membrane composite smoke-eliminating dust-controlling desulfurizing apparatus as claimed in claim 1, it is characterized in that the sealing overflow launder that places on the dedusting body is arranged in the described moisture film shower bath, stretch into the overflow guide in the sealing overflow launder, formed overflow ducts between overflow guide and sealing overflow launder, water inlet pipe one end stretches in the sealing overflow launder.

3, pre-bath water membrane composite smoke-eliminating dust-controlling desulfurizing apparatus as claimed in claim 1 or 2 is characterized in that the dedusting body in the described dust-removing desulfurating apparatus has Archimedian screw involute-type spiral case on the channel position between prebathing chamber and dedusting body.

4, pre-bath water membrane composite smoke-eliminating dust-controlling desulfurizing apparatus as claimed in claim 1 or 2 is characterized in that in the described dedusting body dehydration inner core being arranged.

5, pre-bath water membrane composite smoke-eliminating dust-controlling desulfurizing apparatus as claimed in claim 4 is characterized in that described prebathing chamber and dedusting body and dehydration inner core adopt the granite material to make.