CN2137326Y

CN2137326Y - Cleaning device for smoke of industrial boilers

Info

Publication number: CN2137326Y
Application number: CN 92208726
Authority: CN
Inventors: 张卷昆
Original assignee: HENGSHUI PREFECTURE BUILDING DESIGN INST HEBEI PROV
Current assignee: HENGSHUI PREFECTURE BUILDING DESIGN INST HEBEI PROV
Priority date: 1992-04-30
Filing date: 1992-04-30
Publication date: 1993-06-30
Anticipated expiration: 2002-04-30

Abstract

The utility model discloses a cleaning device for smoke of industrial boilers. The device, which is arranged between the smoke duct of the boiler and a chimney, is composed of main parts including a draught fan, a smoke cleaner, a circulation water pond, a circulation water pump, etc. The smoke cleaner is made from high temperature resistant glass fiber reinforced plastic materials, and the inner structure of the smoke cleaner is provided with an annular nylon nozzle and polystyrene twill type filling materials, which makes the smoke exchange with water fog with drugs sufficiently. The utility model can remove dust as well as eliminate harmful gases in the smoke, such as sulfur dioxide, etc. The efficiency of dust removing reaches 95%, the efficiency of desulfurization reaches above 85%, and the resistance force of the smoke is less than 40 millimeter water column. The utility model can be widely used for coal-fired boilers with different tonnages.

Description

Cleaning device for smoke of industrial boilers

The utility model belongs to the dedusting and purifying device supporting with Industrial Boiler, is specially adapted to the gas cleaning dedusting of coal-fired middle-size and small-size and heating boiler.

Before the utility model; the deduster that Industrial Boiler is used can only dedusting; can not eliminate smoke; can not eliminate sulfide and oxious component in the cigarette; recovery plays a role to the particulate in the flue gas; but flue gas desulfurization is produced little effect; this traditional practice is to take suction-type, promptly earlier by divider, after pass through air-introduced machine; form mostly is the centrifugal dust-removing method; be generally dry process, damp process efficiency of dust collection height is accelerated metallic material corrosion but sulfur in smoke adds water vapour generation sulfuric acid; air-introduced machine and metallic conduit and deduster are fragile, and this deduster further improves so people wait in expectation.

The purpose of this utility model is to provide a kind of flue dust comprehensive regulation, simple in structure, corrosion-resistant, efficiency of dust collection is high, technical feasible, can dedusting again can desulfurization Industrial Boiler gas cleaning apparatus.

The utility model is achieved in that Industrial Boiler gas cleaning apparatus is set between boiler and chimney, this Industrial Boiler gas cleaning apparatus is by air-introduced machine, flue gas cleaner, circulating water pool, flue, drainage pipeline, water pipeline, critical pieces such as water circulating pump are formed, the back of air-introduced machine is provided with flue gas cleaner, it is tubular to be the garden in the middle of the housing of flue gas cleaner, the top of housing is provided with upper cone, lower part of frame is provided with lower cone, the top of upper cone is provided with the tubular exhanst gas outlet in garden, the bottom of exhanst gas outlet is provided with the exhanst gas outlet measuring point and boxes out, exhanst gas outlet and chimney are connected, smoke inlet is set on the top of lower cone and the smoke inlet measuring point is boxed out, the bottom of lower cone is provided with mobilizable mud hole chassis blind plate and drain outlet, lower floor garden week locates to be provided with support bracket bolt and packing layer support in the inside of housing, above the packing layer support packing layer is set, packing layer adopts the rare twill tile packing of polyphenyl, its flue gas and water smoke are fully exchanged, the middle and upper part of housing is provided with garden shape and observes manhole, garden, enclosure interior upper strata week, the place was provided with the endless tube support, above the endless tube support annular conduit is set, the nylon nozzle is set on the annular conduit wall, annular conduit is communicated with feed-water intake, the flow pipe pipeline is communicated with feed-water intake, the lower cone outside is provided with cylinder stent on the housing, be used for support housing, the cylinder stent bottom is provided with support pading plate and foundation bolt, be used for the cylinder stent that is connected and fixed, this connection of installing between each parts is passed through water pipeline by the water that water circulating pump will add the sulphur removal medicine, send into flue gas cleaner, send into flue gas cleaner by the flue gas flue behind air-introduced machine and air-introduced machine that purifies, waste water behind the purification flue gas enters circulating water pool by drainpipe, and the slag of post precipitation is discharged through the water sluice ditch.

Member characteristic of the present utility model is: one, most parts such as flue gas cleaner housing, upper cone, lower cone all adopt heat-resisting fiberglass manufacturing, corrosion-resistant, the inner diameter size of its housing can be according to purifying how much changing of exhaust gas volumn, its scope is φ 1.2-3.5, and rice upper cone and lower cone are correspondingly supporting.Two, the water in the circulating water pool is the water that adds flue gas desulfurization and purify medicine, and keeps certain acid-base value, and basicity reduces will add the purification medicine at any time, and the medicine of its adding can be lime or other alkaline matters.

The utility model has reached design purpose, changed traditional practice, suction-type is made into the extrusion formula, solved the etching problem of air-introduced machine, cigarette device clarifier has selected for use the heat resistant glass steel to make, and the bottom increases its intensity with steel plate reinforcement, inner lining glass fiber reinforced plastic is with anticorrosion, spray water recycles, and adds desulfurizing and purifying flue gas drug solution in water acid mist is neutralized, and makes it play desulfidation.This Industrial Boiler gas cleaning apparatus reaches 100% through its efficiency of dust collection on probation, and desulfuration efficiency reaches more than 90%, and flue gas resistance can be widely used in the gas cleaning of middle-size and small-size and heating boiler less than 40 millimeters of water.

Further describe in conjunction with the accompanying drawings.

Accompanying drawing 1 is an Industrial Boiler flue gas cleaner structure chart.

Accompanying drawing 2 is Industrial Boiler cigarette kiln gas clarifier device smoke evacuation flow charts.

Among the figure: 1, housing, 2, upper cone, 3, lower cone, 4, filler, 5, annular conduit, 6, steel bracket, 7, annular pipe holder, 8, observe manhole, 9, the packing layer support, 10, support bracket bolt, 11, the packing layer chassis, 12, smoke inlet is surveyed and is boxed out, 13, mud hole chassis blind plate, 14, the support pading plate, 15, foundation bolt, 16, the exhanst gas outlet measuring point is boxed out, and 17, nozzle, 18, cylinder stent, 19, drain outlet, 20, feed-water intake, 21, boiler, 22, boiler economizer, 23, flue before the air-introduced machine, 24, air-introduced machine, 25, flue behind the air-introduced machine, 26, water circulating pump, 27, circulating water pool, 28, drainage pipeline, 29, water pipeline, 30, the water sluice ditch, 31, the dosing hole, 32, exhanst gas outlet, 33, smoke inlet.

Flue gas in the boiler at first before air-introduced machine flue 23 enter air-introduced machine 24, by air-introduced machine 24 flue gas is entered flue 25 behind the air-introduced machine, enter flue gas cleaner through smoke inlet 33, the water smoke purification through packing layer 4 and nozzle 17 ejections in the flue gas cleaner enters chimney by exhanst gas outlet 32.

Embodiment of inventor is: according to above-mentioned design, the gas purifier of making from ground to the total height that enters chimney be 11850mm, wherein drain outlet 19 to the height on ground is 1400mm, smoke inlet 33 to the height on ground is 2300mm, the height of lower cone 3 is 650mm, the height of upper cone is 500mm, the height of housing 1 is 3000mm, the external diameter of housing 1 is 1600mm, housing and last lower cone all adopt the glass-reinforced plastic material manufacturing of face high temperature, the circulating water pool volume supporting with flue gas cleaner is four cubic metres, air-introduced machine adopts and the supporting air-introduced machine of boiler, this Industrial Boiler gas cleaning apparatus of making can with 4 tons/time boiler supporting use, per hour the smoke treatment amount is 10000 cubic metres, and pitot loss is the 30mm water column, per hour 15 cubic metres of quantity of circulating water, 20 meters of pitot losses, good through trial effect.Dust removal efficiency reaches 100%, and desulfurized effect has reached 90%, has reached discharge standard.

Claims

1, a kind of Industrial Boiler gas cleaning apparatus, it is characterized in that this device is arranged between boiler smoke pipeline and the chimney, by housing 1, packing layer 4, annular conduit 5, nozzle 17, cylinder stent 18 critical pieces such as grade are formed, the housing 1 middle part tubular of flue gas cleaner, the top of housing 1 is provided with upper cone 2, the bottom of housing 1 is provided with lower cone 3, the flue gas that tubular is set in the top of upper cone 2 goes out 32, the bottom of exhanst gas outlet 32 is provided with the exhanst gas outlet measuring point and boxes out 16, exhanst gas outlet 32 is connected with chimney, smoke inlet 33 is set on the top of lower cone 3 and the smoke inlet measuring point boxes out 12, the bottom of lower cone 3 is provided with mobilizable mud hole chassis blind plate 13 and drain outlet 19, lower floor's circumference place is provided with support bracket bolt 10 and packing layer support 9 in the inside of housing 1, packing layer 4 is set above the packing layer support 9, packing layer 4 adopts the tile packing of polyphenyl solvent or diluent line, flue gas and water smoke are fully exchanged, the middle and upper part of housing 1 is provided with the circular manhole of observing, circumference place, housing 1 inner upper strata is provided with annular pipe holder 7, annular conduit 5 is set above the annular pipe holder 7, on annular conduit 5 walls nylon nozzle 17 is set, annular conduit 5 is communicated with feed-water intake 20, the outside of housing 1 is provided with cylinder stent 18 and is used for support housing 1, the bottom of cylinder stent 18 is provided with support pading plate 14, foundation bolt 15, cylinder stent 18 is used for being connected and fixed, this flue gas cleaner and air-introduced machine, the supporting use of circulating water pool water circulating pump.

2, gas cleaning apparatus according to claim 1, it is characterized in that said flue gas cleaner housing 1, upper cone 2, lower cone 3 all adopts fiberglass to make, the internal diameter size of its housing can be according to purifying how much changing of exhaust gas volumn, its scope is a φ 1.2-3.5 rice, and upper cone and lower cone match with it.