CN2758603Y - Sierra wet desulfurizing duster - Google Patents

Abstract

The utility model relates to a sierra wet desulphurization duster which belongs to a technology of disposal of waste gas, water and solids in the environment protecting field. The utility model is characterized in that a middle partition wall made of granite is arranged in a shell and divides the inner part of the shell into a dry smoke intake chamber and a wet dust removal desulphurization chamber, wherein a smoke inlet is positioned at the top of the dry smoke intake chamber, and a smoke outlet is positioned at the top of the wet dust removal desulphurization chamber; the lower part in the shell is provided with a sedimentation tank of which bottom is provided with an ash discharge machine; the lower end of the middle partition wall is provided with a ground beam, and the lower plane of ground beam and the upper plane of the ground beam around the shell foundation are in the same horizontal plane; the lower plane of the ground beam is positioned above the water surface of the sedimentation tank, and a fume passage is formed between the lower plane of the ground beam and the water surface of the sedimentation tank; at least a pair of dewatering baffle plates are also crisscross arranged in the wet dust collection desulphurization chamber. The utility model has the characteristics of reasonable integral structure, shock resistance, corrosion resistance, strong wear resistance, small ground occupying, reliable operation and long service life. The desulphurization rate can reach to 75 to 85%, and the dust removal efficiency is greater than 96%.

Description

The granite wet type desulfurizing dust-collector

Technical field

The utility model relates to a kind of boiler fitting, particularly relates to the granite wet type desulfurizing dust-collector of using on a kind of coal-burning boiler, belongs to the disposal of three wastes technology in the environmental protection field, is suitable for making or using the producer of coal-burning boiler to adopt.

Background technology

Coal is one of domestic topmost fuel, and the international petroleum price skyrockets especially in recent years, makes many oil burning boilers change the burning coal again into.Yet because the backwardness of combustion technology and equipment can produce a large amount of flue dust, sulfur dioxide and other toxic and harmful when coal combustion, can serious environment pollution if do not administered.At present, based on the industry or the most wet method sulphur removing and dust removing technology that adopt of heating boiler of fire coal, promptly the chemical reaction that is undertaken by alkaline solution and sulfur dioxide reaches the desulfurization purpose.Yet this class wet method sulphur removing and dust removing equipment mostly is iron and steel and makes, though in be lined with anti-corrosion material and also very easily be corroded down the washing away of high-temperature flue gas stream, cause the life-span very short, if the stronger stainless steel of employing antiseptic property is made the too high difficult sale of cost.For this reason, the granite wet type desulfurizing dust-collector of various structures is developed out by people, for example, " the multistage wet method sulphur removing and dust removing device of efficient numb stone " that China's utility model patent provides for No. 03217869.7, it comprises the deduster housing, gas approach, exhanst gas outlet, blowoff valve, the cement supporting seat, be characterized in establishing water tight compartment and sedimentation basin at the deduster housing bottom, in deduster, establish partition wall, be divided into the pipe type water film dirt pocket, the spraying and dedusting chamber, take off the fog chamber, in the pipe type water film dirt pocket, establish boom, at the indoor spiral nozzle of establishing of spraying and dedusting, in taking off the fog chamber, establish training wall, overfall is established at the water tight compartment top, and overfall is connected with the overflow chamber, establishes sewage draining exit in the bottom of overflow chamber." the multistage water desulfurizing-dusting device of efficient numb stone " that China's utility model patent 03217868.9 provides, it comprises into mouth, flue, outlet flue, in flue, establish the pipe type water film dust arrester, pipe type water film dust arrester top is provided with water tank, water tank is connected with water intaking valve, flue is connected with the whirlwind tube, stem stem and sewage draining exit are set up in the bottom of whirlwind tube, sewage draining exit is connected with water sealed tank, establishes platform and overflow launder on the wall of whirlwind tube, and the overflow water feed pipe is established at the overflow launder top, the whirlwind tube is connected with dehydration tube by exhaust gases passes, be characterized on upright stem stem, establishing ring-like spray equipment, dehydration tube with take off the fog chamber and be connected, take off the fog chamber and be connected with outlet flue." the numb stone spray impact type desulfurizing dust-collector " that China's utility model patent 96223075.8 provides, it has the dedusting body of building by laying bricks or stones with granite, on the dedusting body, have gas approach and purified gas outlet, a plurality of atomizers are housed on gas approach and below gas approach, have a S shape passage, because entering the back, fully mixes flue gas with atomized water, big grit falls into the water downwards, atomized water and sulfur in smoke react and reach the once desulfurization dust removing effects simultaneously, flue gas passes through S shape passage again, gas evokes a large amount of sprays, catch the gas and the grit that do not have purification, flue gas is washed once more the effect that reaches high purification.The granite wet type desulfurizing dust-collector that provides in the above technical scheme all has certain desulfurization and dedusting effect, but its structure is complicated, and cost of manufacture is higher, promotes the use of thereby influenced.

The utility model content

The purpose of this utility model is to overcome the prior art above shortcomings, by improvement to existing granite wet type desulfurizing dust-collector structure, provide a kind of novel granite wet type desulfurizing dust-collector, the reasonable integral structure of this granite wet type desulfurizing dust-collector, desulfurization degree reach 75-85%, efficiency of dust collection greater than 96%, and it is little to have floor space, reliable, characteristics such as long service life.

The technical scheme that the utility model provides is: this granite wet type desulfurizing dust-collector includes the housing that granite is made, advance mouth, outlet flue, fill the sedimentation basin of alkaline solution, be characterized in being provided with in the housing midfeather of making by granite, this midfeather is divided into two Room with enclosure interior, be that dry type is entered smoke-box and dust-remover chamber, wherein advance mouth and be positioned at the top that dry type is advanced smoke-box, outlet flue is positioned at the top of dust-remover chamber, dry type in the housing advances smoke-box and bottom, dust-remover chamber is provided with the sedimentation basin that fills alkaline solution, the bottom of sedimentation basin is provided with the sedimentary ash hoist device of discharging, the lower end of the midfeather in the housing is the grade beam that armored concrete is made, the last plane of grade beam is same horizontal plane around the lower plane of this grade beam and the shell foundation, the lower plane of this grade beam is positioned at the top of the sedimentation basin water surface, constituted exhaust gases passes between the lower plane of this grade beam and the sedimentation basin water surface, at the indoor dehydration baffle plate that also is staggeredly equipped with at least one pair of of dust-remover, one end of every pair of dehydration baffle plate is connected on the side of inner walls and midfeather, its other end interception the other side that then tilts respectively.

Compared with prior art, the beneficial effects of the utility model are: reasonable integral structure, desulfurization degree reach 75-85%, efficiency of dust collection greater than 96%, shock resistance, corrosion-resistant, wearability is strong, and it is little to have floor space, reliable, characteristics such as long service life.

Description of drawings

Accompanying drawing is the structural representation that the utility model provides embodiment.

Number in the figure is: 1. advance mouth, 2. dry type is advanced smoke-box, 3. sedimentation basin, 4. ash hoist device, 5. dehydration baffle plate, 6. outlet flue, 7. midfeather, 8. dust-remover chamber, 9. housing.

The specific embodiment

As shown in drawings, this granite wet type desulfurizing dust-collector, include the housing 9 that granite is made, advance mouth 1, outlet flue 6, fill the sedimentation basin 3 of alkaline solution, be characterized in being provided with in the housing 9 midfeather of making by granite 7, this midfeather 7 is divided into two Room with housing 9 inside, be that dry type is entered smoke-box 2 and dust-remover chamber 8, wherein advance mouth 1 and be positioned at the top that dry type is advanced smoke-box 2, outlet flue 6 is positioned at the top of dust-remover chamber 8, dry type in the housing 9 advances smoke-box 2 and 8 bottoms, dust-remover chamber are provided with the sedimentation basin 3 that fills alkaline solution, the bottom of sedimentation basin 3 is provided with the sedimentary ash hoist device 4 of discharging, the lower end of the midfeather 7 in the housing 9 is the grade beam that armored concrete is made, the last plane of grade beam is same horizontal plane around the lower plane of this grade beam and housing 9 bases, the lower plane of this grade beam is positioned at the top of sedimentation basin 3 waters surface, constituted exhaust gases passes between the lower plane of this grade beam and sedimentation basin 3 waters surface, in dust-remover chamber 8, also be staggeredly equipped with two pairs dehydration baffle plate 5, one end of every pair of dehydration baffle plate 5 is connected on the side of housing 9 inwalls and midfeather 7, its other end interception the other side that then tilts respectively.

Operation principle of the present utility model is: ash-laden gas enters dry type with the speed of 18～20 meter per seconds from air inlet 1 and advances smoke-box 2; and pour in the sedimentation basin 3; bigger grit can sink on the upstream face; after the flue gas of preliminary purification is turned back and is clashed into midfeather 7; exhaust gases passes between the water surface from sedimentation basin 3 and the midfeather 7 grade beam lower planes enters in the dust-remover chamber 8; in the impact diffusion of high-temperature flue gas; water in the sedimentation basin 3 is subjected to the influence of temperature and negative pressure to form more water vapour; hydrone fully contacts cohesion until sedimentation with dust-laden particle in the flue gas; make the fine grit of the overwhelming majority sneak into that post precipitation is excluded in the water; the alkaline solution that generates in the precipitated pond 3 of diluted acid behind sulfur in smoke and the water molecule reaction neutralizes; flue gas behind the desulfurization and dedusting is in dust-remover chamber 8; clash into dehydration baffle plate 5 repeatedly; moisture content in the flue gas is deviate from; enter air-introduced machine at last, discharge by chimney.

Claims (1)

1. granite wet type desulfurizing dust-collector, include the housing that granite is made, advance mouth, outlet flue, fill the sedimentation basin of alkaline solution, it is characterized in that being provided with in the housing midfeather of making by granite, this midfeather is divided into dry type with enclosure interior and enters smoke-box and dust-remover chamber, wherein advance mouth and be positioned at the top that dry type is advanced smoke-box, outlet flue is positioned at the top of dust-remover chamber, dry type in the housing advances smoke-box and bottom, dust-remover chamber is provided with the sedimentation basin that fills alkaline solution, the bottom of sedimentation basin is provided with the sedimentary ash hoist device of discharging, the lower end of the midfeather in the housing is the grade beam that armored concrete is made, the last plane of grade beam is same horizontal plane around the lower plane of this grade beam and the shell foundation, the lower plane of this grade beam is positioned at the top of the sedimentation basin water surface, constituted exhaust gases passes between the lower plane of this grade beam and the sedimentation basin water surface, at the indoor dehydration baffle plate that also is staggeredly equipped with at least one pair of of dust-remover, one end of every pair of dehydration baffle plate is connected on the side of inner walls and midfeather, its other end interception the other side that then tilts respectively.

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