CN103028308B - Gas purifying device - Google Patents
Gas purifying device Download PDFInfo
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- CN103028308B CN103028308B CN201210500556.8A CN201210500556A CN103028308B CN 103028308 B CN103028308 B CN 103028308B CN 201210500556 A CN201210500556 A CN 201210500556A CN 103028308 B CN103028308 B CN 103028308B
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Abstract
The invention relates to a device for purifying gas by using a solid granular cleaning agent such as active coke. The device for purifying gas provided by the invention comprises a bed body, a feed chamber and a discharge chamber, wherein the feed chamber is mounted at the right end of the bed body, while the discharge chamber is mounted at the left end of the bed body; the left side of the feed chamber is communicated with the right end of the bed body; the right side of the discharge chamber is communicated with the left end of the bed body; a first feed pipe is mounted at the top end of the feed chamber; a first discharge pipe is mounted at the bottom end of the discharge chamber; a gas inlet pipe is mounted on the left sidewall of the discharge chamber, while a gas outlet pipe is mounted on the right side wall of the feed chamber; the bed body comprises a plurality of adsorbent channels arranged on the left and the right sides; and each adsorbent channel is inclined upwards from left to right. The device is simple in structure, easy to detach and repair and low in cost; and the device is not only high in desulfuration, denitration and dust removal efficiency, but also low in active coke layer resistance, and thereby is capable of ensuring normal flowing of the active coke and the flue gas.
Description
Technical field
The present invention relates to a kind of gas cleaning plant, particularly relate to one and utilize solid granular cleanser, as the device of activated coke, active carbon purifying gas.
Background technology
The formulation of China's sustainable development target thereupon, the environmental protection protection policy of country is increasingly strict, and flue gas desulfurization, denitration is one of Important Problems becoming China.Active coke dry-method desulfuration, denitration technology are often applied to industry coal-boiler gas cleaning, also for gas cleaning process in the absorption tower in the fields such as chemical industry, metallurgy, glass, pharmacy.Activated coke has the characteristic of active carbon, and namely namely activated coke itself is adsorbent, is again catalyst, can also be used as catalyst carrier simultaneously.Flue gas through activated coke adsorption tower, the SO in flue gas
2, NO
x, O
2, H
2o and the NH passed into
3be attracted in activated coke hole.Under activated coke catalytic action, SO
2and O
2and H
2o reacts, finally with H
2sO
4form is attached in activated coke hole; NO and O
2and NH
3reaction generates N
2, NO
2with NH
3reaction generates N
2, thus reach and remove SO in coal-fired flue-gas
2and NO
xobject.
The two kinds of forms existed in current activated coke dry flue gas desulphurization, denitration technology: one is cross-flow adsorption technology, another kind is convection adsorption technology.
Cross-flow adsorption technology is: be provided with fresh adsorbent import at top, absorption tower, and be provided with the adsorbent outlet that absorption is saturated bottom absorption tower, absorption tower left lower is provided with gas feed, and absorption tower right upper portion is provided with gas vent.Relatively early, gas is in side, absorption tower from left to right by absorption tower, and activated coke passes through absorption tower, and the two cross-flow contacts in the development of cross-flow adsorption technology.Advantage is: air inlet area is large, gas air speed in tower is low, and bed resistance is little, and owing to need not arrange air inlet, air outlet space, activated coke storing and lower material space in tower, therefore in absorption tower, space availability ratio is large.Shortcoming: flue gas enters activated coke bed from the side, first there is adsorption reaction and reach capacity at first in the activated coke near gas approach, flue gas is by moving from left to right, the absorption saturation capacity of activated coke reduces successively, total distribution situation is that the absorption saturation capacity of activated coke reduces from left to right successively, increase successively from top to bottom, less in the activated coke adsorbance near smoke outlet side, thus make not adsorb activated coke completely containing some in the activated coke of discharge, the activated coke that such part is fresh is discharged, and sent for regeneration, thus activated coke internal circulating load is strengthened, the increasing of internal circulating load also makes power consumption and breakage strengthen, regenerative combustion gas amount strengthens, cause energy dissipation, activated coke adsorbance saturation capacity in addition due to bottom is larger, desulfuration efficiency is lower, activated coke is above due to than comparatively fresh, desulfuration efficiency is higher, and total desulfurization of gas vent, denitration efficiency is the mean value of upper-lower position efficiency, therefore its desulfurization, denitration efficiency is high not as convection adsorption efficiency.
Convection adsorption technology is: be provided with fresh adsorbent import at top, absorption tower, be provided with bottom absorption tower absorption saturated after adsorbent drain hole, bottom, absorption tower is provided with gas feed, and top, absorption tower is provided with gas vent, is provided with adsorbent bed in absorption tower.Convection type absorption tower also comprises active coke adsorbent warehouse, adsorbent uniform distribution device, adsorbent discharging opening and gas feed distributor, adsorbent blanking device, gas feed seal diaphragm, discharge controller, discharging warehouse.Convection adsorption technology allows flue gas from bottom upwards uniformly across activated coke bed, fresh activated coke flows downward from top and gas counter current contact, thus the absorption of the activated coke in bed saturation capacity is reduced from down to up successively, adsorb saturated activated coke to be first discharged, adsorbance size for the activated coke on same plane is identical, therefore the speed that activated coke declines also is almost the same, thus the utilization rate of activated coke is improved greatly, and due to the thickness of bed be uniform, flue gas air inlet is also even, the drag size of flue gas each point is also uniform, flue gas is also substantially identical with the time of contact of activated coke, bed is longer for higher time of contact, desulfuration efficiency is also higher, reach as high as more than 99%.In the internal circulating load of activated coke due to convection techniques in tower the discharge quantity of each point be the same, the activated coke particle of tower outlet is nearly all saturated, that is adsorbs the SO of as much
2, the activated coke of convection techniques is relatively less, and the activated coke of discharge is also just few, and namely internal circulating load is little, and system is comparatively energy-conservation.Shortcoming is: because flue gas enters absorption tower in bottom, air inlet area is less, gas air speed in tower is high, bed resistance is large, need to leave admission space, air outlet space, activated coke storage bin, activated coke blanking bin in tower, therefore in convection current absorption tower, space availability ratio is low, floor space is comparatively large, because adsorption plane is plane simultaneously, activated coke recovery section needs to arrange multiple valve and pipeline, complex structure.And, higher in the adsorbent bed vertical height on absorption tower, as vertical height be 20 meters time, the pressure be then subject at the adsorbent of adsorbent bed bottom is very large, the density of bottom adsorbent can be caused to increase, be unfavorable for passing through of flue gas, and easily cause dust stratification, sticky group, affect adsorbent proper flow, cause tremie pipe to block.
Summary of the invention
The technical problem to be solved in the present invention is to provide simple, the quick detachable maintenance of a kind of structure, gas cleaning plant that cost is low, this device not only desulphurization and denitration, efficiency of dust collection is high, there will not be crossfire, stream, the problem of short circuit, and activated coke layer resistance is little, the proper flow of activated coke and flue gas can be ensured.
Gas cleaning plant of the present invention, comprise a body, feed space and discharge chamber, feed space is arranged on the right-hand member of a body, discharge chamber is arranged on the left end of a body, the left side of feed space is communicated with the right-hand member of bed body, the right side of discharge chamber is communicated with the left end of bed body, the top of feed space is provided with the first feed pipe, the bottom of discharge chamber is provided with the first discharge nozzle, the left side wall of discharge chamber is provided with air inlet pipe, the right side wall of feed space is provided with escape pipe, and bed body comprises the adsorbent channel that multiple left and right is arranged, and each adsorbent channel is all from left to right inclined upwardly.
Gas cleaning plant of the present invention, the first dividing plate is provided with in wherein said discharge chamber, discharge chamber is separated into left discharge chamber and right discharge chamber by the first dividing plate, first discharge nozzle is positioned at the bottom of right discharge chamber, the top of left discharge chamber is provided with the second feed pipe, the bottom of left discharge chamber is provided with the second discharge nozzle, and the first dividing plate offers some passages.By discharge chamber being divided into left discharge chamber and right discharge chamber, the first discharge nozzle outflow of activated coke through right discharge chamber bottom that the absorption of flowing out in adsorbent channel is saturated, in the second feed pipe that left discharge chamber top is installed, add activated coke simultaneously, first the flue gas entered in air inlet pipe contacts with the activated coke added in the second feed pipe, the dust of activated coke particulate blockage absorption falls along with activated coke particle, discharge from the second discharge nozzle, thus solve flue gas easily at the lower-left end of adsorbent channel or the lower end dust stratification of activated coke bed, the problem of sticky group, make activated coke proper flow, effectively avoid a body adsorbent channel or the blocking of the first discharge nozzle.
Gas cleaning plant of the present invention, the first inlet chamber is also provided with between wherein said left discharge chamber and right discharge chamber, second partition is provided with in discharge chamber, second partition is positioned at the right side of the first dividing plate, first discharge nozzle is positioned at the right side of second partition, first inlet chamber is made up of the wooden partition of the first dividing plate, second partition and discharge chamber, and second partition also offers some passages, and the bottom of the first inlet chamber is provided with the first ammonia-feeding pipe.By arranging the first inlet chamber between left discharge chamber and right discharge chamber, according to the content of nitre in flue gas, flue gas blocks after ash and adsorption cleaning through cross-flow in left discharge chamber, passing into ammonia nitre mol ratio by the second ammonia-feeding pipe is the ammonia of 0.2:1 to 1.1:1, the mixture of such flue gas and ammonia is by after second partition, with activated coke particle contacts, there is absorption and gas-solid interface reaction, thus realize denitration.If go out to spray ammonia at gas approach, ammonia can first react with sulfur dioxide, generates sulphur ammonia salt, blocking activated coke bed.
Gas cleaning plant of the present invention, the left side wall of wherein said discharge chamber is the inclined-plane be tilted to the right from top to bottom, or the left side wall of discharge chamber is cambered surface protruding left, the bottom of the left side wall of discharge chamber is in the left side on top, the right side wall of feed space is the inclined-plane be tilted to the right from top to bottom, or the right side wall of feed space is cambered surface protruding to the right, the bottom of the right side wall of feed space is in the left side on top.By the left side wall of discharge chamber is arranged to inclined-plane or cambered surface, can air flow shortcircuit be avoided, thus prevent from occurring dust stratification in the discharge chamber upper left corner, affect gas cleaning effect; By the right side wall of feed space is arranged to inclined-plane or cambered surface, the horizontal thrust to activated coke particle can be improved, promote that activated coke flows to left down.
Gas cleaning plant of the present invention, wherein said first dividing plate and second partition are the inclined-plane be tilted to the right from top to bottom, or the first dividing plate and second partition are protruding cambered surface left, the bottom of the first dividing plate and second partition is all in the left side on top, and the axis of the passage on the first dividing plate is all from left to right inclined upwardly.
Gas cleaning plant of the present invention, the 3rd dividing plate is provided with in wherein said feed space, feed space is separated into left feed space and right feed space by the 3rd dividing plate, first feed pipe is positioned at the top of left feed space, the top of right feed space is provided with the 3rd feed pipe, the bottom of right feed space is provided with the 3rd discharge nozzle, and the 3rd dividing plate offers some passages.
Gas cleaning plant of the present invention, the second inlet chamber is also provided with between wherein said left feed space and right feed space, the 4th dividing plate is provided with in feed space, 4th dividing plate is positioned at the left side of the 3rd dividing plate, first feed pipe is positioned at the left side of the 4th dividing plate, second inlet chamber is made up of the wooden partition of the 3rd dividing plate, the 4th dividing plate and feed space, and the 4th dividing plate also offers some passages, and the bottom of the second inlet chamber is provided with the second ammonia-feeding pipe.By arranging the second inlet chamber, in the second inlet chamber, spraying ammonia by the second ammonia-feeding pipe, the NO in flue gas can be removed further
x.
Gas cleaning plant of the present invention, wherein said 3rd dividing plate and the 4th dividing plate are the inclined-plane be tilted to the right from top to bottom, or the 3rd dividing plate and the 4th dividing plate are protruding cambered surface to the right, the bottom of the 3rd dividing plate and the 4th dividing plate is all in the left side on top, and the axis of the passage on the 4th dividing plate is all from left to right inclined upwardly.
Gas cleaning plant of the present invention, the base plate downward-sloping setting all from right to left of wherein said feed space and discharge chamber, first discharge nozzle is positioned at the left end of the base plate of right discharge chamber, and the second discharge nozzle is positioned at the left end of the base plate of left discharge chamber, and the 3rd discharge nozzle is positioned at the left end of the base plate of right feed space.By discharge nozzle is arranged on lowermost end, activated coke can be made all to flow out from discharge nozzle.
Gas cleaning plant of the present invention, the angle of inclination of wherein said each adsorbent channel is 30 °-70 °, the shape in the cross section perpendicular to axis of each adsorbent channel is horizontal stripe shape, vertical bar shape, square, circular, rhombus or triangle, and the shape of the horizontal cross-section of feed space and discharge chamber is semicircle, rectangle or trapezoidal.By the cross section perpendicular to axis of adsorbent channel being set to horizontal stripe shape, vertical bar shape, square, circular, rhombus or triangle, being to make flue gas even distribution, making activated coke uniform particles flow down simultaneously, preventing activated coke bias current and blocking.
Gas cleaning plant difference from prior art of the present invention is that the present invention is by being arranged to bed body comprise multiple from left to right acclivitous adsorbent channel, activated coke Uniform Flow in multiple adsorbent channel can be made, relative to the activated coke bed only having a passage, add the rigid constraint aspect of activated coke, regular and induction of the flowing of activated coke, greatly reduce bias current and the dead band, local of activated coke, avoid the formation of cavity, there will not be crossfire, stream, the problem of short circuit.Activated coke enters from feed space, and after flowing into the adsorbent channel of bed, flow out from discharge chamber, without the need to arranging valve and pipeline in discharge chamber, structure is simple.After entering in the air inlet pipe that flue gas is installed from discharge chamber bottom, upwards uniformly across adsorbent channel, fresh activated coke is from upper right lower left Uniform Flow, contact with smoke convection, thus the activated coke absorption saturation capacity in adsorbent channel is reduced to upper right successively by lower-left, adsorb saturated activated coke to be first discharged, thus the utilization rate of activated coke is improved greatly.Because activated coke is dispersed in multiple adsorbent channel, and adsorbent channel is obliquely installed, thus, the pressure that activated coke in adsorbent channel lower end is subject to is very little, activated coke is larger at adsorbent channel internal clearance, be beneficial to passing through of flue gas, and can avoid causing dust stratification, sticky group, activated coke particle proper flow can be ensured.
Below in conjunction with accompanying drawing, the invention will be further described.
Accompanying drawing explanation
Fig. 1 is the front sectional view of the embodiment 1 of gas cleaning plant of the present invention;
Fig. 2 is the front sectional view of the embodiment 2 of gas cleaning plant of the present invention;
Fig. 3 is the stereogram (shape of the horizontal cross-section of feed space and discharge chamber is for semicircle) of the embodiment 1 of gas cleaning plant of the present invention;
Fig. 4 is the stereogram (shape of the horizontal cross-section of feed space and discharge chamber is rectangle) of the embodiment 1 of gas cleaning plant of the present invention;
Fig. 5 is the stereogram (shape of the horizontal cross-section of feed space and discharge chamber is trapezoidal) of the embodiment 1 of gas cleaning plant of the present invention;
Fig. 6 is the front view that the bed body of gas cleaning plant of the present invention installs the first ammonia-feeding pipe and the second ammonia-feeding pipe;
Fig. 7 is the stereogram (cross sectional shape of adsorbent channel is vertical bar shape) of the bed body of gas cleaning plant of the present invention;
Fig. 8 is the stereogram (cross sectional shape of adsorbent channel is horizontal stripe shape) of the bed body of gas cleaning plant of the present invention;
Fig. 9 is the stereogram (cross sectional shape of adsorbent channel is corrugated vertical bar shape) of the bed body of gas cleaning plant of the present invention;
Figure 10 is the stereogram (cross sectional shape of adsorbent channel is corrugated horizontal stripe shape) of the bed body of gas cleaning plant of the present invention;
Figure 11 is the stereogram (cross sectional shape of adsorbent channel is square) of the bed body of gas cleaning plant of the present invention;
Figure 12 is the stereogram (cross sectional shape of adsorbent channel is for circular) of the bed body of gas cleaning plant of the present invention;
Figure 13 is the stereogram (cross sectional shape of adsorbent channel is rhombus) of the bed body of gas cleaning plant of the present invention;
Figure 14 is the stereogram (cross sectional shape of adsorbent channel is triangle) of the bed body of gas cleaning plant of the present invention.
Detailed description of the invention
Embodiment 1:
As shown in Figure 1, gas cleaning plant of the present invention comprises a body 1, feed space 2 and discharge chamber 3, feed space 2 is arranged on the right-hand member of a body 1, and discharge chamber 3 is arranged on the left end of a body 1, and the left side of feed space 2 is communicated with the right-hand member of bed body 1, the right side of discharge chamber 3 is communicated with the left end of bed body 1, the top of feed space 2 is provided with the first feed pipe 4, the bottom of discharge chamber 3 is provided with the first discharge nozzle 5, first feed pipe 4 and the first discharge nozzle 5 all in funnel-form, to realize material envelope, prevent flue gas from wherein overflowing.The base plate downward-sloping setting all from right to left of feed space 2 and discharge chamber 3, the first discharge nozzle 5 is positioned at the left end of the base plate of discharge chamber 3.
The left side wall of discharge chamber 3 is provided with air inlet pipe 6, the right side wall of feed space 2 is provided with escape pipe 7.In the present embodiment, air inlet pipe 6 is positioned at the bottom of the left side wall of discharge chamber 3, and escape pipe 7 is positioned at the right side wall top of feed space 2.Air inlet pipe 6 and escape pipe 7 are provided with orifice plate or grid, enter air inlet pipe 6 or escape pipe 7 to prevent activated coke particle.In the present embodiment, the left side wall of discharge chamber 3 is the inclined-plane be tilted to the right from top to bottom.Certainly, the left side wall of discharge chamber 3 also can be protruding cambered surface left, and the bottom of the left side wall of discharge chamber 3 is in the left side on top.Or the left side wall of discharge chamber 3 is vertically arranged.In the present embodiment, the right side wall of feed space 2 is the inclined-plane be tilted to the right from top to bottom.The right side wall of feed space 2 also can be cambered surface protruding to the right, and the bottom of the right side wall of feed space 2 is in the left side on top.Or the right side wall of feed space 2 is vertically arranged.
Bed body 1 comprises the adsorbent channel 8 that multiple left and right is arranged, and each adsorbent channel 8 is all from left to right inclined upwardly.The angle of inclination of each adsorbent channel 8 is 30 °-70 °.The shape in the cross section perpendicular to axis of each adsorbent channel 8 is vertical bar shape as shown in Figure 7, adjacent and be parallel to each other between the adsorbent channel 8 of each vertical bar shape.Certainly, the shape in the cross section perpendicular to axis of adsorbent channel 8 also can be horizontal stripe shape as shown in Figure 8, also adjacent and be parallel to each other between the adsorbent channel 8 of each horizontal stripe shape.Or as shown in Figure 9, adsorbent channel 8 is corrugated vertical bar shape.Or as shown in Figure 10, adsorbent channel 8 is corrugated horizontal stripe shape.Or as shown in figure 11, adsorbent channel 8 is square.Or as shown in figure 12, adsorbent channel 8 is circular.Or as shown in figure 13, adsorbent channel 8 is rhombus.Or as shown in figure 14, adsorbent channel 8 is triangle.The above-mentioned cross section perpendicular to axis is when for non-rotary body, and cross section is the cross section perpendicular to adsorbent channel direction.If bed body only arranges one deck swash plate, namely the passage that large is only had, then for the active focus layer flowing through swash plate, only there is one deck rigid support and constraint, be difficult to ensure that vertical height is the Uniform Flow of the activated coke particle of 3 meters to 20 meters, easily form bias current or dead band or cavity, local because of the difference of flow velocity.But after adopting the multiple adsorbent channel in this device, active focus layer can be divided into the junior unit of 0.3 meter to 2 meters, add rigid constraint aspect, the flowing of regular and induced activity Jiao, greatly reduces bias current, dead band, local, avoids formation cavity.
The shape of feed space 2 and discharge chamber 3 is according to the restriction of using area or the uniform requirement of turnover flue gas, as shown in Figure 3, the shape of the horizontal cross-section of feed space 2 and discharge chamber 3 can adopt semicircle, or as shown in Figure 4, the shape of the horizontal cross-section of feed space 2 and discharge chamber 3 can adopt rectangle, or as shown in Figure 5, the shape of the horizontal cross-section of feed space 2 and discharge chamber 3 can adopt trapezoidal.
During the work of gas cleaning plant of the present invention, in feed space 2, activated coke particle is added by the first feed pipe 4, activated coke particle flows in the adsorbent channel 8 of bed body 1 through feed space 2, activated coke particle is full of adsorbent channel 8, and in adsorbent channel 8, flow from upper right lower left, after activated coke particle flows out adsorbent channel 8, enter discharge chamber 3, discharged by the first discharge nozzle 5, meanwhile, flue gas enters discharge chamber 3 by air inlet pipe 6, each adsorbent channel 8 is entered by discharge chamber 3, after the activated coke particle convection current of flowing in adsorbent channel 8, feed space 2 is entered from the upper right side of adsorbent channel 8, finally, the flue gas be cleaned is discharged from escape pipe 7.Because flue gas is in adsorbent channel 8 and active coke convection, makes the activated coke in adsorbent channel 8 adsorb saturation capacity and reduced successively to upper right by lower-left, adsorb saturated activated coke and be first discharged, thus improve the utilization rate of activated coke.
Gas cleaning plant of the present invention adopts bed body 1, feed space 2 and discharge chamber 3 three block combiner to form, easy accessibility, overhauls after being convenient to gas cleaning plant dismounting.By the combination of discharge chamber 3 and bed body 1, in bed body 1, multiple left-to-right acclivitous adsorbent channel 8 is set, achieves the side direction discharging of adsorbent activity Jiao in a body 1, solve air flue in prior art, material road intersects mutually, complex structure, not easily detachable problem.
Embodiment 2:
As shown in Figure 2, the difference of the present embodiment and embodiment 1 is, the first dividing plate 9 and second partition 15 is provided with in discharge chamber 3, first dividing plate 9 is positioned at the left side of second partition 15, discharge chamber 3 is separated into left discharge chamber 10, first inlet chamber 14 and right discharge chamber 11, first inlet chamber 14 between left discharge chamber 10 and right discharge chamber 11 by the first dividing plate 9 and second partition 15.Wherein the first discharge nozzle 5 is positioned at the bottom of right discharge chamber 11, is also provided with the second feed pipe 12 on the top of left discharge chamber 10, and the bottom that the bottom of left discharge chamber 10 is provided with the second discharge nozzle 13, first inlet chamber 14 is provided with the first ammonia-feeding pipe 25.First dividing plate 9 and second partition 15 are protruding cambered surface left, the bottom of the first dividing plate 9 and second partition 15 is all in the left side on top, or the first dividing plate 9 and second partition 15 are the inclined-plane be tilted to the right from top to bottom, or the first dividing plate 9 and second partition 15 are all vertically arranged.Wherein the first dividing plate 9 and second partition 15 all offer some passages, the axis of the passage on the first dividing plate 9 is all from left to right inclined upwardly, and the axis of the passage on second partition 15 is all from left to right downward-sloping.Second discharge nozzle 13 is positioned at the left end of the base plate of left discharge chamber 10.
The 3rd dividing plate 16 and the 4th dividing plate 22 is provided with in feed space 2,3rd dividing plate 16 is positioned at the right side of the 4th dividing plate 22, feed space 2 is separated into left feed space 17, second inlet chamber 21 and right feed space 18 by the 3rd dividing plate 16 and the 4th dividing plate 22, first feed pipe 4 is positioned at the top of left feed space 17, the top of right feed space 18 is provided with the 3rd feed pipe 19, the bottom that the bottom of right feed space 18 is provided with the 3rd discharge nozzle 20, second inlet chamber 21 is provided with the second ammonia-feeding pipe 26.3rd dividing plate 16 offers some passages.3rd dividing plate 16 and the 4th dividing plate 22 are protruding cambered surface to the right, the bottom of the 3rd dividing plate 16 and the 4th dividing plate 22 is all in the left side on top, or the 3rd dividing plate 16 and the 4th dividing plate 22 are the inclined-plane be tilted to the right from top to bottom, or the 3rd dividing plate 16 and the 4th dividing plate 22 are all vertically arranged.Wherein the 3rd dividing plate 16 and the 4th dividing plate 22 all offer some passages, the axis of the passage on the 4th dividing plate 22 is all from left to right inclined upwardly, and the axis of the passage on the 3rd dividing plate 16 is all from left to right downward-sloping.3rd discharge nozzle 20 is positioned at the left end of the base plate of right feed space 18.
Second feed pipe 12, second discharge nozzle 13, the 3rd feed pipe 19 and the 3rd discharge nozzle 20, all in funnel-form, to realize material envelope, prevent flue gas from wherein overflowing.
First dividing plate 9, second partition 15 the 3rd dividing plate 16 and the 4th dividing plate 22 are made by orifice plate or grid, by controlling the percent opening of diverse location on dividing plate, regulate the air-flow of gas in left discharge chamber 10 and left feed space 17, in the present embodiment, under dividing plate adopts upper dredging, close perforate mode ensures the uniform of air-flow.
This device in use, all adds activated coke particle in the first feed pipe 4, second feed pipe 12 and the 3rd feed pipe 19, forms flue gas cross-flow absorption in left discharge chamber 10 and right feed space 18, forms flue gas swash plate convection adsorption in bed body 1.By arranging left discharge chamber 10 and right feed space 18, flue gas in left discharge chamber 10 first with the vertical activated coke particle contacts fallen, the dust of activated coke particulate blockage vertically falls thereupon, then discharge, solve flue gas when contacting with the activated coke of swash plate lower end, easily in the problem of swash plate lower end dust stratification, sticky group, improve the service efficiency of the activated coke of swash plate convection current.When the sulfur content in flue gas is higher, according to the content of nitre in flue gas, after ash and adsorption cleaning are blocked in flue gas cross-flow in left discharge chamber 10, with after bed body inner swash plate counter current absorption, catalytic reaction purification, before contacting with the activated coke fallen vertical in right feed space 18, in the second inlet chamber 21, pass into suitable ammonia by the second ammonia-feeding pipe 26, such flue gas contacts with the activated coke fallen vertical in right feed space with the mixture of ammonia, there is absorption and gas-solid interface reduction reaction, realize denitration.This adopts swash plate convection current and cross-current flow purifying smoke to be difficult to realize, if spray ammonia at the inlet end of swash plate convection current, ammonia can first react with sulfur dioxide, and generate sulphur ammonia salt, block activated coke bed, independent cross-flow bed also has such problem.
When in flue gas, sulfur content is lower, but when denitration requires higher, in the first inlet chamber 14, suitable ammonia can be passed into, to strengthen denitration effect by the second ammonia-feeding pipe 25 simultaneously.Now because the content of sulfur dioxide is low, generate sulphur ammonia salt little, there will not be the situation of blocking activated coke bed.
In order to improve the effect into ammonia, first ammonia-feeding pipe 25 and the second ammonia-feeding pipe 26 can extend in the first inlet chamber 14 and the second inlet chamber 21 respectively, as shown in Figure 6, and the tube wall being positioned at inlet chamber at the first ammonia-feeding pipe 25 and the second ammonia-feeding pipe 26 offers some pores uniformly.Wherein the shape of cross section of the first ammonia-feeding pipe 25 and the second ammonia-feeding pipe 26 can be circle, rectangle or ellipse etc.
Above-described embodiment is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; under not departing from the present invention and designing the prerequisite of spirit; the various distortion that those of ordinary skill in the art make technical scheme of the present invention and improvement, all should fall in protection domain that claims of the present invention determines.
Claims (10)
1. a gas cleaning plant, comprise a body (1), feed space (2) and discharge chamber (3), it is characterized in that: described feed space (2) is arranged on the right-hand member of a body (1), discharge chamber (3) is arranged on the left end of a body (1), the left side of described feed space (2) is communicated with the right-hand member of bed body (1), the right side of discharge chamber (3) is communicated with the left end of bed body (1), the top of feed space (2) is provided with the first feed pipe (4), the bottom of discharge chamber (3) is provided with the first discharge nozzle (5), the left side wall of described discharge chamber (3) is provided with air inlet pipe (6), the right side wall of described feed space (2) is provided with escape pipe (7), described bed body (1) comprises the adsorbent channel (8) that multiple left and right is arranged, described each adsorbent channel (8) is all from left to right inclined upwardly.
2. gas cleaning plant according to claim 1, it is characterized in that: in described discharge chamber (3), be provided with the first dividing plate (9), discharge chamber (3) is separated into left discharge chamber (10) and right discharge chamber (11) by described first dividing plate (9), described first discharge nozzle (5) is positioned at the bottom of right discharge chamber (11), the top of described left discharge chamber (10) is provided with the second feed pipe (12), the bottom of described left discharge chamber (10) is provided with the second discharge nozzle (13), and described first dividing plate (9) offers some passages.
3. gas cleaning plant according to claim 2, it is characterized in that: between described left discharge chamber (10) and right discharge chamber (11), be also provided with the first inlet chamber (14), second partition (15) is provided with in described discharge chamber (3), described second partition (15) is positioned at the right side of the first dividing plate (9), described first discharge nozzle (5) is positioned at the right side of second partition (15), described first inlet chamber (14) is by the first dividing plate (9), the wooden partition of second partition (15) and discharge chamber (3) is formed, (15) also offer some passages to described second partition, the bottom of described first inlet chamber (14) is provided with the first ammonia-feeding pipe (25).
4. gas cleaning plant according to claim 1, it is characterized in that: the left side wall of described discharge chamber (3) is the inclined-plane be tilted to the right from top to bottom, or the left side wall of discharge chamber (3) is cambered surface protruding left, the bottom of the left side wall of discharge chamber (3) is in the left side on top, the right side wall of described feed space (2) is the inclined-plane be tilted to the right from top to bottom, or the right side wall of feed space (2) is cambered surface protruding to the right, and the bottom of the right side wall of feed space (2) is in the left side on top.
5. gas cleaning plant according to claim 3, it is characterized in that: described first dividing plate (9) and second partition (15) are the inclined-plane be tilted to the right from top to bottom, or the first dividing plate (9) and second partition (15) are protruding cambered surface left, the bottom of the first dividing plate (9) and second partition (15) is all in the left side on top, and the axis of the passage on described first dividing plate (9) is all from left to right inclined upwardly.
6. gas cleaning plant according to claim 5, it is characterized in that: in described feed space (2), be provided with the 3rd dividing plate (16), feed space (2) is separated into left feed space (17) and right feed space (18) by described 3rd dividing plate (16), described first feed pipe (4) is positioned at the top of left feed space (17), the top of described right feed space (18) is provided with the 3rd feed pipe (19), the bottom of described right feed space (18) is provided with the 3rd discharge nozzle (20), and described 3rd dividing plate (16) offers some passages.
7. gas cleaning plant according to claim 6, it is characterized in that: between described left feed space (17) and right feed space (18), be also provided with the second inlet chamber (21), the 4th dividing plate (22) is provided with in described feed space (2), described 4th dividing plate (22) is positioned at the left side of the 3rd dividing plate (16), described first feed pipe (4) is positioned at the left side of the 4th dividing plate (22), described second inlet chamber (21) is by the 3rd dividing plate (16), the wooden partition of the 4th dividing plate (22) and feed space (2) is formed, described 4th dividing plate (22) also offers some passages, the bottom of described second inlet chamber (21) is provided with the second ammonia-feeding pipe (26).
8. gas cleaning plant according to claim 7, it is characterized in that: described 3rd dividing plate (16) and the 4th dividing plate (22) are the inclined-plane be tilted to the right from top to bottom, or the 3rd dividing plate (16) and the 4th dividing plate (22) are protruding cambered surface to the right, the bottom of the 3rd dividing plate (16) and the 4th dividing plate (22) is all in the left side on top, and the axis of the passage on described 4th dividing plate (22) is all from left to right inclined upwardly.
9. gas cleaning plant according to claim 8, it is characterized in that: the base plate downward-sloping setting all from right to left of described feed space (2) and discharge chamber (3), first discharge nozzle (5) is positioned at the left end of the base plate of right discharge chamber (11), second discharge nozzle (13) is positioned at the left end of the base plate of left discharge chamber (10), and the 3rd discharge nozzle (20) is positioned at the left end of the base plate of right feed space (18).
10. gas cleaning plant according to claim 9, it is characterized in that: the angle of inclination of described each adsorbent channel (8) is 30 °-70 °, the cross sectional shape perpendicular to axis of described each adsorbent channel (8) is horizontal stripe shape, vertical bar shape, square, circular, rhombus or triangle, and the shape of the horizontal cross-section of described feed space (2) and discharge chamber (3) is semicircle, rectangle or trapezoidal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210500556.8A CN103028308B (en) | 2012-11-29 | 2012-11-29 | Gas purifying device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210500556.8A CN103028308B (en) | 2012-11-29 | 2012-11-29 | Gas purifying device |
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| Publication Number | Publication Date |
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| CN103028308A CN103028308A (en) | 2013-04-10 |
| CN103028308B true CN103028308B (en) | 2015-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210500556.8A Expired - Fee Related CN103028308B (en) | 2012-11-29 | 2012-11-29 | Gas purifying device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103316581B (en) * | 2013-05-23 | 2015-04-08 | 佛山市富饶科技材料有限公司 | Hydrogen fluoride flue gas purifying processing device and processing method therefor |
| CN105498444A (en) * | 2015-12-07 | 2016-04-20 | 徐州猎奇商贸有限公司 | Activated carbon purification device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4354862A (en) * | 1980-01-26 | 1982-10-19 | Andre Buechl Kalk-und Portandzementwerk | Filter for cleaning gases |
| CN201168537Y (en) * | 2008-02-22 | 2008-12-24 | 张开元 | Active coke air purifying apparatus |
| CN102430305A (en) * | 2011-09-14 | 2012-05-02 | 万怡震 | Industrial smoke exhaust gas recovery purifier and application method thereof |
| CN203002173U (en) * | 2012-11-29 | 2013-06-19 | 香港诺曼泰壹环保科技有限公司 | Gas purifying device |
-
2012
- 2012-11-29 CN CN201210500556.8A patent/CN103028308B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4354862A (en) * | 1980-01-26 | 1982-10-19 | Andre Buechl Kalk-und Portandzementwerk | Filter for cleaning gases |
| CN201168537Y (en) * | 2008-02-22 | 2008-12-24 | 张开元 | Active coke air purifying apparatus |
| CN102430305A (en) * | 2011-09-14 | 2012-05-02 | 万怡震 | Industrial smoke exhaust gas recovery purifier and application method thereof |
| CN203002173U (en) * | 2012-11-29 | 2013-06-19 | 香港诺曼泰壹环保科技有限公司 | Gas purifying device |
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