CN2048781U - High-efficient clarifier of waste gas - Google Patents

Abstract

The utility model discloses a purifier for removing the gas pollutant and the dust in the waste gas. Besides the basic structure of the general wet-type purifier, the high efficient purifier of the waste gas is provided with an impacting chamber (16), an impacting chamber water inlet passage (23), sieve plates (2), an overflow passage (7) between the sieve plates and a sieve plate water inlet passage (25). The high efficient purifier of the waste gas combines a plurality of purification modes of water film dust removal, impacting type dust removal and sieve plate froth layer dust removal to the gas pollutant and the dust, thus enhancing the purification efficiency of the waste gas. With the advantages of simple structure, difficult block, good performance for corrosion resistance, wear resistance and temperature resistance, the utility model is smartly suitable for different operational requirements.

Description

High-efficient clarifier of waste gas

The utility model relates to a kind of device that material is separated, and further is meant a kind of gas pollutant in the waste gas and purifier of dust removed.

The wet scrubbing absorption process is one of technology commonly used in the exhaust-gas treatment.The existing Type of equipment that uses both at home and abroad has spray tower, packed tower, tubulent contact tower, foaming tower, rotating stream tray scrubber, Venturi scrubber and wet type cyclonic water film deduster etc., the treatment effeciency that these equipment have is low, the resistance, the energy consumption that have are big, the complex structure that has, be difficult to make, being easy at work of having stopped up, and anti-corrosion, the wear-resisting and heat resistance that has is poor.

The purpose of this utility model aims to provide a kind of exhaust gas purification and treatment device, makes it can remove gas pollutant and dust in the waste gas simultaneously, and makes the purified treatment efficient height of this device.

The utility model is realized by following design.This device has tower body bottom in tower body made from metal material or nonmetallic materials or composite, the impulse chamber dividing plate that a bottom has with a certain distance from the tower body bottom surface is housed vertically, the dividing plate rear and front end is connected mutually with the tower body inwall, dividing plate with from the space that forms of nearer part tower body is referred to as impulse chamber, the tower body side has an exhaust gas inlet pipeline that is connected with impulse chamber inside.At the impulse chamber top, have an impulse chamber top board that impulse chamber is covered in, this top board has several discharge orifices of row along dividing plate by an end of impulse chamber dividing plate.Below the impulse chamber top board, top from the impulse chamber dividing plate by impulse chamber one side, stretch out an impulse chamber cloth mill weir that fuses with the impulse chamber dividing plate, cloth mill weir weir face is relative up and down with discharge orifice, in the tower body above the impulse chamber top board, one deck is housed also or which floor has the sieve plate of sieve aperture, inlet damper and the overflow baffle to the control water level of upper process that fuse with sieve plate are housed respectively at the two ends of sieve plate, and the outside by overflow baffle on sieve plate has the sieve plate spout hole.The top of the inlet damper of the superiors' sieve plate, a sieve plate water inlet end channel partition that is fixed on the tower body inwall is housed, this dividing plate with from the space that forms of nearer part tower body is referred to as sieve plate water inlet end passage, a water is housed in the tower body side enters to manage with absorbent and be connected with sieve plate water inlet end passage.Between the spout hole and impulse chamber top board of orlop sieve plate, an impulse chamber water inlet end channel partition that is fixed on the tower body inwall is housed, this dividing plate with from the nearer formed space of part tower body be referred to as impulse chamber water inlet end passage.The sieve plate of adorning more than two, the same end that is in upper and lower two sieve plates respectively at the overflow baffle and the inlet damper of adjacent two layers sieve plate, and between the inlet damper of the spout hole of last layer sieve plate and following one deck sieve plate, overflow ducts dividing plate between a sieve plate that is fixed on the tower body inwall is housed, this dividing plate and from the space that forms of nearer part tower body is referred to as overflow ducts between sieve plate.In tower body the superiors' sieve plate above, demister part behind the waste gas purification that general wet purifying decice has is housed, tower body side or top above demister part export after having a waste gas purification.In the tower body lower side, the pond overflow drainage device part that general wet purifying decice has is housed.Maintenance can be offered several manholes and hand hole in the tower body side as required for convenience.The utility model is owing to there has been said structure, so it is when work, enter water and the absorbent that pipe feeds from water and absorbent, through sieve plate water inlet end passage, cross the inlet damper of the superiors' sieve plate, flow through the overflow baffle that this sieve plate arrives the other end, and cross this overflow baffle and let out down from spout hole, after this, overflow ducts arrives the inlet damper end of one deck sieve plate down through between sieve plate again, repeat the current direction on the superiors' sieve plate then, spout hole from the orlop sieve plate is let out down at last, let out the water that gets off and absorbent flow through again on impulse chamber water inlet end passage and the impulse chamber top board discharge orifice and enter impulse chamber cloth mill weir, behind impulse chamber cloth mill weir water distribution, descend along impulse chamber dividing plate wooden partition, flow at the bottom of the tower pond at the bottom of tower is formed at the impulse chamber bottom.Meanwhile, waste gas enters impulse chamber by the exhaust gas inlet pipeline, promptly contact with moisture film on the impulse chamber dividing plate, and the water surface that continues pond at the bottom of tower impacts, obtain rough dusting and cool effect, after this, waste gas is again along the pond water surface and upwards through space in the tower adjacent with impulse chamber, pass through the water froth bed on the sieve plate again, further dedusting also is absorbed gaseous contaminant, again up after demister is partly removed water smoke, the waste gas that has purified by waste gas purification after outlet discharge.The water that contains a large amount of dust and gas pollutant accumulates in and forms the pond at the bottom of the tower, and when the pond had certain altitude, unnecessary water was promptly partly drained from the overflow drainage device of tower bottom side.

Below in conjunction with drawings and Examples the utility model is further described.

Fig. 1 is the forward cutaway view of a kind of concrete structure of the utility model;

Fig. 2 to Fig. 5 is respectively A-A, 8-8, C-C and the D-D cutaway view of Fig. 1.

Reference numeral among the figure is; 1, export behind the waste gas purification; 2, sieve plate; 3, supporting boss; 4, hand-hole and hand hole; 5, overflow baffle; 6, overflow ducts dividing plate between sieve plate; 7, overflow ducts between sieve plate; 8, inlet damper; 9, supporting boss; 10, tower body; 11, the gutter; 12, pool skimming weir; 13, the pond spout hole; 14, pond at the bottom of the tower; 15, the impulse chamber dividing plate; 16, impulse chamber; 17, bath chamber cloth mill weir; 18, impulse chamber top board discharge orifice; 19, the exhaust gas inlet pipeline; 20, the impulse chamber top board; 21, water and absorbent enter standby pipes; 22, impulse chamber water inlet end channel partition; 23, impulse chamber water inlet end passage; 24, water and absorbent enter pipe; 25, sieve plate water inlet end passage; 26, sieve plate water inlet end channel partition; 27, the demist water fender; 28, " people " shape dividing plate; 29, sieve aperture; 30, the sieve plate spout hole.

Referring to Fig. 1, the shape of tower body (10).Embodiment does squarely among the figure, also can make cylindrical shape or other shape, impulse chamber top board (20) is made with tower body (10) and is fused, sieve plate (2) fixedly is that sieve plate (2) is placed on several supporting boss (9) that tower body (10) inwall stretches in tower body (10), forms openable movable attaching.The demister part of aforementioned purifying exhaust air, embodiment among the figure (referring to Fig. 1 and Fig. 2) is the water fender (27) that adopts prior art, this water fender middle part has by some longitudinal sections and forms the passage that allows waste gas pass through for the dividing plate (28) of " people " shape is divided into certain clearance in twos mutually, and removes water smoke at this.Water fender (27) fixing in tower body (10) then is that water fender (27) is placed on the supporting boss of stretching from tower body (10) inwall (3).Referring to Fig. 3, the sieve aperture (29) on the sieve plate (2) is to make long gap-shaped, also can do circular or other shape, sieve aperture (29) and sieve plate (2) but but also oblique of quadrature.From Fig. 1 and Fig. 5 as seen, the enforcement of pond of the present utility model overflow drainage device part, it is the pool skimming weir (12) that a uncovered box-like is housed in tower body (10) bottom sides, the gutter (11) of ining succession, downflow weir (12) side, tower body (10) side has a pond spout hole (13) pond at the bottom of the tower (14) is connected with pool skimming weir (12).Different is for this downflow weir (12) and general downflow weir, this downflow weir (12) height up can be regulated, for example the EF among Fig. 1 is the base altitude of downflow weir, up raise the downflow weir baffle plate to G or N, just can improve the height of pond (14) water surface, also just improve the efficient of backblast dedusting simultaneously.Similar therewith, overflow baffle (5) on the sieve plate (2) is also made Height Adjustable formula, regulate the foam layer height of water on the sieve plate with the method that changes the overflow baffle height, to improve the efficient of the removal gas pollutant under the different situations.From Fig. 1 also as can be known, tower body (10) side between sieve plates of the superiors (2) and impulse chamber top board (20), one or a few water and absorbent that is connected with tower body (10) inside also is housed enters standby pipes (21), the embodiment among the figure only is equipped with such standby pipes (21) and is connected with impulse chamber water inlet end passage (23).Standby pipes (21) is used under these circumstances, promptly when waste gas need not remove gas pollutant and only need dedusting, the height of pool skimming weir (12) baffle plate can raise on the one hand, to improve the pond water surface elevation and to impact efficiency of dust collection, also can stop simultaneously entering pipe (24) supply water and absorbent from water and absorbent, change by water and absorbent and enter standby pipes (21) supply, so just, can all stop or part stops to supply water according to the requirement of efficiency of dust collection is decided to sieve plate (2)), should raise the sieve plate that does not supply water this moment, to reduce the resistance and the energy consumption of system.Therefore say that this device has very big operating flexibility.

The utility model is owing to remove gas pollutant with water film dedusting, lector and sieve plate foam layer and this purification style of dust organically combines, thereby greatly improved the efficient of waste gas purification. Adding the height of pool skimming weir baffle plate and the height of sieve plate overflow baffle plate can regulate according to arts demand, and the efficient that more makes this device remove dust and gas pollutant improves. For example this device is used for the boiler smoke wet method sulphur removing and dust removing, take alkaline waste water or milk of lime or agstone as desulfurization absorbent, its efficiency of dust collection 〉=95% reaches national class area discharge standard (≤200mg/Wm³), desulfuration efficiency is controlled at 60%～90% according to the operating condition difference. Sieve aperture on the sieve plate is designed to strip slot shape, is convenient to clean, and can effectively prevent from stopping up. Sieve plates at different levels are made the Moveable assembled formula, are convenient to open. The suitable granite (numb stone) that adopts of corrosive exhaust gases the utility model as the main construction material of tower body, is improved corrosion-resistant, the wear-resisting performance that undermines heatproof, prolonged the service life of whole device. Simple, the easily manufacturing of this apparatus structure, one-time investment is not high, can be widely used in the improvement of waste gas in the environmental project.

Claims (5)

1, a kind of gas pollutant in the waste gas and high-efficiency device for purifying waste gas of dust removed, comprise that tower body (10), water and absorbent enter behind pipe (24), exhaust gas inlet pipeline (19), the waste gas purification demister part and pond overflow drainage device part behind outlet (1), manhole and hand hole (4), the waste gas purification, of the present utility model being characterised in that, it also includes:

A) an impulse chamber dividing plate (15), it is contained in the interior bottom of tower body (10) vertically and has certain distance from the tower body bottom surface, dividing plate (15) rear and front end is connected mutually with tower body (10) inwall, dividing plate (15) with from nearer part tower body forms impulse chamber (16), the exhaust gas inlet pipeline (19) of tower body (10) side is connected with impulse chamber (16) inside, the upper lateral part by impulse chamber (16) from impulse chamber dividing plate (15) stretches out an impulse chamber cloth mill weir (17) that fuses with dividing plate (15);

B) covering is at the impulse chamber top board (20) at impulse chamber (16) top, this top board (20) is by an end of impulse chamber dividing plate (15), have row's several discharge orifices (18) along dividing plate (15), discharge orifice (18) is relative up and down with impulse chamber cloth mill weir (17) the weir face of below;

C) one deck or which floor are contained in the sieve plate (2) in impulse chamber top board (20) the top tower body (10), have sieve aperture (29) on the sieve plate (2), at sieve plate (2) two ends inlet damper to upper process (8) and the overflow baffle (5) that fuses with sieve plate (2) is housed respectively, the outside of going up by overflow baffle (5) at sieve plate (2) has sieve plate spout hole (30);

O) the sieve plate water inlet end channel partition (26) of a packaged inlet damper (8) top in the superiors' sieve plate (2), this dividing plate (26) with from nearer part tower body forms sieve plate water inlet end passage (25), the water of tower body (10) side enters pipe (24) with absorption and is connected with sieve plate water inlet end passage (25);

E) overflow ducts dividing plate (6) between a packaged sieve plate between adjacent two sieve plates (2), this dividing plate (6) and from nearer part tower body forms overflow ducts (7) (sieve plate of adorning just has this structure at the device more than two) between sieve plate, dividing plate (6) rear and front end is fixed on tower body (10) inwall;

F) the impulse chamber water inlet end channel partition (22) between a packaged spout hole (30) and the impulse chamber top board (20) in orlop sieve plate (2), this dividing plate (22) with from nearer part tower body forms impulse chamber water inlet end passage (23).

2, waste gas purification apparatus as claimed in claim 1, it is characterized in that, described pond overflow drainage device part, be pond spout hole (13), pool skimming weir (12) and gutter (11) formation, and the height of baffle plate of pool skimming weir (12) can be regulated by tower body (10) bottom sides.

3, waste gas purification apparatus as claimed in claim 1, it is characterized in that, described sieve plate (2) places on several supporting boss (9) that tower body (10) inwall stretches, sieve aperture (29) on the sieve plate (2) is made long gap-shaped, and the height of the overflow baffle (5) on the sieve plate (2) can be regulated.

4, waste gas purification apparatus as claimed in claim 1 is characterized in that, adopts the main construction material of granite (numb stone) as tower body (10).

5, as the described waste gas purification apparatus of claim 1 to 4, it is characterized in that, tower body (10) side between sieve plates of the superiors (2) and impulse chamber top board (20) is equipped with one or a few water and absorbent that is connected with tower body (10) inside and is entered standby pipes (21).

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