CN103405982A - Smoke purification device - Google Patents
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- CN103405982A CN103405982A CN201310274797XA CN201310274797A CN103405982A CN 103405982 A CN103405982 A CN 103405982A CN 201310274797X A CN201310274797X A CN 201310274797XA CN 201310274797 A CN201310274797 A CN 201310274797A CN 103405982 A CN103405982 A CN 103405982A
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Abstract
The invention relates to a smoke purification device which belongs to the field of smoke purification treatment. The smoke purification device provided by the invention comprises an adsorption tower and a regeneration tower, wherein a feeding port of the adsorption tower is connected with a discharging port of the regeneration tower; a discharging port of the adsorption tower is connected with a feeding port of the regeneration tower; the adsorption tower comprises at least one adsorption module, at least one top storage tank and at least one bottom discharge tank, and the adsorption module comprises a top storage bin, a denitration chamber, a desulfuration chamber and a bottom storage bin; the denitration chamber is communicated with the desulfuration chamber through an air inlet blanking device which comprises an upper hopper, a lower hopper and a connecting pipe, each of the upper hopper and the lower hopper is shaped like a funnel which has larger upper part and smaller lower part, and an opening in the upper end of the upper hopper is communicated with the bottom of the denitration chamber; the lower hopper is sleeved on the upper hopper, a gap is reserved between the lower hopper and the upper hopper, an opening in the lower end of the lower hopper is communicated with the upper end of the connecting pipe, the lower end of the connecting pipe is communicated with the top of the desulfuration chamber, and the bottom storage bin is communicated with the desulfuration chamber through the air inlet blanking device. The device provided by the invention has the advantages that the high-efficiency desulfuration capability can be kept, and nitrogen oxides in smoke is removed.
Description
Technical field
The present invention relates to the gas cleaning process field, particularly relate in the combustion process of the fossil fuel (coal) in a kind of sintering process of manufacturing for the iron-smelter metal or thermal power plant/coke or its compound produce, in the flue gas of discharge, or the purifier of the flue gas discharged during the burning of industry/life waste material.
Background technology
In the flue gas that produces, discharges in the combustion process of the sintering process in the manufacture of iron-smelter metal or the fossil fuel (coal) in thermal power plant/coke or its compound, in the flue gas discharged when perhaps industry/life waste material burns, contained SOx(oxysulfide), NOx(nitrogen oxide), heavy metal (contains the pollution sources such as heavy metal), bioxin/furans of tribute, environment has been caused to serious pollution.Chinese patent CN202289864U discloses a kind of dry desulfurization reaction tower, mainly comprise the grid be arranged in the desulfurizing tower housing, desulfurizing tower is separated out to two-stage desulfurization agent layer, air inlet and air distributor are set between the desulfurizing agent layer, it is provided with floss hole, gas outlet and charging door in top of desulfurizing agent layer at the middle and upper levels, and the bottom of lower floor's desulfurizing agent layer is provided with gas outlet and condensate drain mouth.Although above-mentioned desulfurization reaction tower can remove the oxysulfide in flue gas by loading active carbon, but because active carbon is immobilising, after causing active carbon to use a period of time, desulphurizing ability reduces, and this desulfurization reaction tower can not be removed the nitrogen oxide in flue gas.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of smoke eliminator simple in structure, easy and simple to handle, can keep efficient desulphurizing ability, and can remove the nitrogen oxide in flue gas.
Smoke eliminator of the present invention, comprise adsorption tower and regenerator, the charging aperture of described adsorption tower is connected with the discharging opening of regenerator, the discharging opening of described adsorption tower is connected with the charging aperture of regenerator, described adsorption tower comprises at least one adsorption module, at least one top storage tank and at least one bottom discharge tank, each adsorption module includes the top storage bin, the denitration chamber, desulfurization chamber and bottom storage bin, the denitration chamber is positioned at the desulfurization chamber top, between denitration chamber and desulfurization chamber, be provided with into the ammonia chamber, the bottom of entering the ammonia chamber is connected with the top of desulfurization chamber, advance indoor at least one the first air inlet doffer that is provided with of ammonia, between denitration chamber and desulfurization chamber, be communicated with by the first air inlet doffer, the first air inlet doffer comprises bucket, lower bucket and tube connector, upper bucket and lower bucket be big up and small down infundibulate all, the upper end open of upper bucket is communicated with the bottom of denitration chamber, on lower bucket is sleeved on and struggles against, between lower bucket and upper bucket, be provided with gap, the lower ending opening of lower bucket is communicated with the upper end of tube connector, the lower end of tube connector is communicated with the top of desulfurization chamber, the bottom storage bin is positioned at the desulfurization chamber below, between bottom storage bin and desulfurization chamber, be provided with bottom compartment, in bottom compartment, be provided with at least one second air inlet doffer, the second air inlet doffer is identical with the first air inlet doffer structure, between bottom storage bin and desulfurization chamber, be communicated with by the second air inlet doffer, the upper end open of the upper bucket of the second air inlet doffer is communicated with the bottom of desulfurization chamber, the lower end of the tube connector of the second air inlet doffer is communicated with the bottom storage bin, the top storage bin is positioned at the top of denitration chamber, the top of denitration chamber is provided with at least one blanking funnel, the upper end of blanking funnel is communicated with the top storage bin, the lower ending opening of blanking funnel is positioned at the top of denitration chamber, the top storage tank is positioned at storage bin top, top, and be communicated with the top storage bin, the bottom discharge tank is positioned at storage bin below, bottom, and be communicated with the bottom storage bin, the top storage tank is connected with the charging aperture of adsorption tower, the bottom discharge tank is connected with the discharging opening of adsorption tower, bottom in bottom compartment offers gas approach, advancing on the ammonia chamber to offer the ammonia injection apparatus, top in the denitration chamber offers exhanst gas outlet, gas approach is communicated with the air inlet of adsorption tower, exhanst gas outlet is communicated with the gas outlet of adsorption tower.
Smoke eliminator of the present invention, wherein said adsorption tower comprises absorption module and support, the absorption module comprises at least one adsorption module group, at least 1 top storage tank and at least 1 bottom discharge tank, the adsorption module group comprises 4 adsorption modules, 4 adsorption modules are divided into two-layer up and down, 2 every layer, the adsorption module adjacent with layer is fixedly connected with left and right between any two, between upper and lower two-layer adsorption module, also be fixedly connected with, the bottom of two adsorption modules of lower floor is connected with support with at least 1 movable part by a fixture, described movable part is positioned at the surrounding of fixture, fixture forms a fixed connection a little, movable part forms and is flexibly connected point, two parts up and down of described movable part can relatively move on horizontal plane, the top storage bin of each described adsorption module all is connected with four discharging openings of 1 tripper by 4 the second its top feed pipes, each tripper charging aperture all is connected with the top storage tank by 1 the first its top feed pipe, the bottom storage bin of each adsorption module all logical charge tube is connected with the bottom discharge tank.
Smoke eliminator of the present invention, wherein said absorption module comprises two adsorption module groups, before and after two adsorption module groups, arrange, between two adsorption module groups, air inlet pipe and escape pipe are set, one end of air inlet pipe is connected with the air inlet of adsorption tower, the other end of air inlet pipe is connected with the gas approach of each adsorption module, and an end of escape pipe is connected with the exhanst gas outlet of each adsorption module, and the other end of escape pipe is communicated with the gas outlet of adsorption tower.When the absorption module is two when above, absorption module left and right between any two is arranged side by side, and considers thermal expansion, between adjacent absorption module, has gap in twos.
Smoke eliminator of the present invention, also comprise regenerator and active device, the bottom discharge tank of described adsorption tower is connected with the charging aperture of active device, the discharging opening of described active device is connected with the charging aperture of regenerator, the discharging opening of described regenerator is connected with the top storage tank of adsorption tower, described active device comprises housing, transfer device and additive shower, and described additive shower is positioned at the top of transfer device, and the medicament of described additive shower spray is urea compounds.
Smoke eliminator of the present invention, also comprise fresh active carbon storage bin, and the discharging opening of described fresh active carbon storage bin is communicated with the charging aperture of regenerator.By fresh active carbon storage bin being connected to the charging aperture of regenerator, can remove moisture and fugitive constituent in fresh active carbon, increase its active function groups.
Smoke eliminator of the present invention, the active carbon that wherein said adsorption tower is used are, after by weight percent hundred, being coordinated with tar as brown coal 80% and bituminous coal 20%, to process through charing, final activated processing and making.
In smoke eliminator of the present invention, wherein said adsorption tower, the flow velocity of smoke gas flow through desulfurization chamber and denitration chamber is 0.2-0.3m/sec.
Smoke eliminator difference from prior art of the present invention is that the present invention is by arranging adsorption tower and regenerator, adsorption module is set in adsorption tower, desulfurization chamber and denitration chamber are set in an adsorption module, can effectively remove the sulfur and nitrogen oxides in flue gas, and by the air inlet doffer, be communicated with between denitration chamber and desulfurization chamber, between bottom storage bin and desulfurization chamber, also by the air inlet doffer, be communicated with, between top storage bin and denitration chamber, be communicated with by blanking funnel, can guarantee that active carbon flows downward in purifying smoke, active carbon and flue gas form convection current, after being discharged from, active carbon after desulphurization denitration delivers to regenerator regeneration, active carbon after regeneration is admitted to the adsorption tower charging aperture, for adsorption tower, reuse, formed the benign cycle of active carbon, guaranteed the desulphurization denitration ability of active carbon.
The invention will be further described below in conjunction with accompanying drawing.
The accompanying drawing explanation
Fig. 1 is the structural representation of the adsorption module of smoke eliminator of the present invention;
Fig. 2 is the structural representation of the adsorption tower of smoke eliminator of the present invention;
Fig. 3 is the connection diagram of adsorption module and support in smoke eliminator of the present invention;
Fig. 4 is the active carbon desulfurization power curve figure of smoke eliminator of the present invention.
The specific embodiment
Smoke eliminator of the present invention comprises adsorption tower 4 and regenerator, and the charging aperture of adsorption tower 4 is connected with the discharging opening of regenerator, and the discharging opening of adsorption tower 4 is connected with the charging aperture of regenerator.
As shown in Figure 1, adsorption tower 4 comprises an adsorption module, a top storage tank 4s and a bottom discharge tank 4k, adsorption module includes top storage bin 4c, denitration chamber 4b, desulfurization chamber 4a and bottom storage bin 4l, denitration chamber 4b is positioned at desulfurization chamber 4a top, between denitration chamber 4b and desulfurization chamber 4a, be provided with into ammonia chamber 4g, the bottom of advancing ammonia chamber 4g is connected with the top of desulfurization chamber 4a, advance in the 4g of ammonia chamber to be provided with 4 the first air inlet doffer 4h, between denitration chamber 4b and desulfurization chamber 4a, be communicated with by 4 the first air inlet doffer 4h, each first air inlet doffer 4h includes bucket 4h1, lower bucket 4h2 and tube connector 4h3, upper bucket 4h1 and lower bucket 4h2 be big up and small down infundibulate all, the upper end open of upper bucket 4h1 is communicated with the bottom of denitration chamber 4b, lower bucket 4h2 is sleeved on bucket 4h1, between lower bucket 4h2 and upper bucket 4h1, be provided with gap, so that flue gas enters the gap of active carbon or activated coke particle from the gap between bucket 4h1 and lower bucket 4h2.The lower ending opening of lower bucket 4h2 is communicated with the upper end of tube connector 4h3, the lower end of tube connector 4h3 is communicated with the top of desulfurization chamber 4a, thereby active carbon is entered in desulfurization chamber 4a through the first air inlet doffer 4h from denitration chamber 4b, and the flue gas on desulfurization chamber 4a top can, after advancing ammonia chamber 4g, enter in the 4b of denitration chamber by the gap between upper bucket 4h1 and lower bucket 4h2.
Bottom storage bin 4l is positioned at desulfurization chamber 4a below, between bottom storage bin 4l and desulfurization chamber 4a, be provided with the 4e of bottom compartment, in the 4e of bottom compartment, be provided with 4 the second air inlet doffer 4f, the second air inlet doffer 4f is identical with the first air inlet doffer 4h structure, between bottom storage bin 4l and desulfurization chamber 4a, be communicated with by the second air inlet doffer 4f, the upper end open of the upper bucket of the second air inlet doffer 4f is communicated with the bottom of desulfurization chamber 4a, the lower end of the tube connector of the second air inlet doffer 4f is communicated with bottom storage bin 4l, so that flue gas enters in desulfurization chamber 4a from the upper bucket of the second air inlet doffer 4f and the gap between lower bucket.
Flue gas is in flue-gas-cooling system is adjusted to adsorption tower after the optimum treatmenting temperature scope, by air inlet, enter the gas approach 4d of adsorption tower 4 interior adsorption modules, at the 4e of bottom compartment, by the upper bucket of 4 the second air inlet doffer 4f that are evenly distributed and the gap between lower bucket, deliver to the desulfurization layer of desulfurization chamber 4a.Some difference of proterties in time that the desulfurization layer stops according to flue gas, best is that 0.2-0.3 m/sec and inlet gas concentration are while being 150-220 ppm through flow velocity, need the 4-7 time of staying of second, when inlet gas concentration was greater than 150-220 ppm, the time of staying that need to be longer, if while surpassing this flow velocity 0.2-0.3 m/sec, the dust of active carbon itself can disperse and be mixed in flue gas, the flue gas of meeting removing pollutant, in addition, the flow velocity increase can cause the differential pressure of active carbon layer to increase.At the desulfurization layer, remove the pollution sources such as oxysulfide, tribute, bioxin/furans by the adsorption function of active carbon or activated coke.
Flue gas from the desulfurization layer out after, through the denitration floor that the first air inlet doffer 4h enters denitration chamber 4b, nitrogen oxide is removed by catalysis by active carbon.Specifically, flue gas from the desulfurization layer out, module advance ammonia chamber 4g in ammonia, mix, then enter the bottom of denitration layer.Ammonia is to discharge from the ammonia storage tank with gaseous state, in atomizer, carry out heat exchange and heat up with steam, then the outer gas phase heated up with another kind of mode in blender is mixed mutually, and then the ammonia chamber 4g that advances in module mixes with flue gas by the ejection of ammonia injection apparatus is rear.The spray flux of ammonia is decided by the equivalent proportion of ammonia and nitrogen oxide, and the residue ammonia that does not have to induce reaction with nitrogen oxide need to be regulated, in order to avoid surpass the standard value in the environment permissible range.Some difference of proterties in time that the denitration layer stops according to flue gas, best is that 0.2-0.3 m/sec and inlet gas concentration are while being 150-220 ppm through flow velocity, need the 6-9 time of staying of second, when inlet gas concentration is greater than 150-220 ppm, the time of staying that need to be longer.In the 4b of denitration chamber, the nitrogen oxide in flue gas produces chemical reaction with ammonia selectively by the catalysis of active carbon, and resolves into water and nitrogen (N
2), then with the flue gas purified, together pass through the exhanst gas outlet of adsorption module, then by the adsorption tower gas outlet, discharged, finally flow to chimney 7.
In order to improve the operating efficiency of adsorption tower 4, do following improvement with respect to the adsorption tower 4 of above-described embodiment.In the present embodiment, adsorption tower 4 comprises absorption module and support, the absorption module comprises two adsorption module groups, 1 top storage tank 4s and 4 bottom discharge tank 4k, the adsorption module group comprises 4 adsorption modules, 4 adsorption modules are divided into two-layer up and down, 2 every layer, the adsorption module adjacent with layer is fixedly connected with left and right between any two, between upper and lower two-layer adsorption module, also be fixedly connected with, in conjunction with shown in Figure 3, the bottom of two adsorption modules of lower floor is connected with support with at least 1 movable part (being 5 movable parts in the present embodiment) by a fixture, movable part 31 is positioned at the surrounding of fixture 30, fixture 30 forms a fixed connection a little, movable part 31 forms and is flexibly connected point, two parts up and down of movable part can relatively move on horizontal plane, in the present embodiment, fixture is bolt, movable part is lower plate, pillar and ball bearing, lower plate is fixedly mounted on the top of the adsorption module that is positioned at below, the pillar upper end is fixedly mounted on the bottom of the adsorption module that is positioned at top, ball bearing is equipped with roll mode in the pillar lower end, ball bearing is pressed on the upper surface of lower plate.With reference to shown in Figure 1, the top storage bin 4c of each adsorption module all is connected with four discharging openings of 1 tripper 4j by 4 the second its top feed pipe 4m, each tripper 4j all is connected with top storage tank 4s by 1 the first its top feed pipe 4t, and the bottom storage bin 4l of each described adsorption module all logical charge tube is connected with bottom discharge tank 4k.
As shown in Figure 2, when processing a large amount of flue gas, normally 6m is wide, 6m long for the size of single-bit module, and maximum is also that 7.2m is wide, and 7.2m is long, adsorption tower comprises two of left and right absorption module, if the absorption module is two, consider thermal expansion when above, should leave suitable interval, therefore, in the present embodiment, has certain interval between two absorption modules.Each absorption module includes two adsorption module groups, and namely an adsorption tower includes 16 adsorption modules.Before and after two adsorption module groups, arrange, air inlet pipe 4q and escape pipe 4r are set between two adsorption module groups, the end of air inlet pipe 4q is connected with the air inlet of adsorption tower, the other end of air inlet pipe 4q is connected with the gas approach 4d of each adsorption module, the end of escape pipe 4r is connected with the exhanst gas outlet 4i of each adsorption module, and the other end of escape pipe 4r is communicated with the gas outlet of adsorption tower 4.By two storage tanks only are set on adsorption tower, have greatly reduced like this each module and had the hidden danger of indivedual regulative modes of storage tank (" module, a storage tank ") separately in machinery, operating aspect.And the bifurcated of active carbon material feeding pipeline and conveying equipment and distributor become simpler, distance becomes the shortest.Three-temperature sensor all is installed in each adsorption module.
Adsorption module is due to structure and the loading of filling the active carbon in it is subjected to vertically, the impact of horizontal loading, during running, the temperature of flue gas makes its inside usually maintain the temperature conditions of 120-150 ° of C, therefore need to think about the impact of loading and thermal expansion, then using the optimal module number as its base unit.In the present embodiment with 8 adsorption modules, the absorption module of namely take is base unit, between the absorption module of two of left and right, leave the expansion joint space, by expansion joint, the air inlet pipe of two absorption modules is connected with escape pipe, and the bottom of adsorption module is connected with support with 5 movable parts by a fixture, above-mentioned thermal expansion is dropped to minimum on the impact of adsorption tower mechanical performance, when emergency occurred, (when " focus " occurs) guaranteed the absolute construction that other adsorption towers are immune.
The bottom discharge tank 4k of adsorption tower 4 is connected with the charging aperture of active device, the discharging opening of active device is connected with the charging aperture of regenerator, the discharging opening of regenerator is connected with the top storage tank 4s of adsorption tower 4, active device comprises housing, transfer device and additive shower, the additive shower is fixedly mounted in housing, and the additive shower is positioned at the top of transfer device, after active carbon enters from the charging aperture of active device, by transfer device (as belt conveyor), be transferred to the discharging opening of active device, in this process, the additive shower is to spraying agent on active carbon, the medicament of additive shower spray is urea compounds.The discharging opening of fresh active carbon storage bin is communicated with the charging aperture of regenerator.
From the active carbon that adsorption module is discharged, through regeneration, process to regenerator, the pollution sources such as oxysulfide, tribute and bioxin/furans that are adsorbed on active carbon become concentrated gas; Oxysulfide is made business sulfuric acid in the sulfuric acid manufacturing equipment, and other pollution sources are processed in sewage treatment equipment.Bioxin in the regenerating active carbon process, high temperature in regenerator (400-450 ° of C) and no oxygen (O
2) condition under decompose fully, eliminate.
Active carbon through regenerating in regenerator, its most pollution sources are resolved and decompose, usually make to remain in wherein less than the micropollution source of 1 wt%, discharging opening place at regenerator arranges sieve, thereby the active carbon size after guaranteeing to regenerate just is transported in adsorption tower 4 and re-uses more than maintaining 2.8mm.The dust arrester that the active carbon of regeneration and new active carbon together arrange by the adsorption tower top is housed in the storage tank 4s of top after removing fine dust.Active carbon moves down along the pipeline that top storage bin 4c is connected against gravity from the top storage tank, action by switch baffle plate on pipeline and pipeline remains airtight successively, and then the second its top feed pipe 4m via the module top enters in the storage bin 4c of top.After being contained in the active carbon material feeding in the storage bin of top, at denitration chamber 4b, carry out denitration (denitrogenation) by catalysis, at desulfurization chamber 4a, carry out desulfurization by adsorption function, in these denitrations and sweetening process, active carbon suitably stays for some time, then in order to regenerate from the desulfurization chamber 4a of module, discharging.Active carbon, temporarily left in bottom storage bin 4l and bottom discharge tank 4k on time after desulfurization chamber 4a, discharging according to time of programming, then with the carrying equipment, discharged.
Active carbon after active device spray and together be delivered to regenerator from the fresh active carbon of fresh active carbon storage bin supply, raise from top through heating zone temperature in order to regenerate, and when temperature surpasses 300 ° of C, starts to resolve.The concentrated sulfur dioxide formed after the heating zone temperature is raised to 400-450 ° of C and resolves, decomposes from active carbon, together pass through degas zone with other resolved pollution sources, is delivered to the sulfuric acid manufacturing equipment.Active carbon is after degas zone completes parsing, move down into the bottom coohng district, the outer gas of being introduced by pressure fan carries out cooling, gas obtains thermal source and heats up by heat exchange in the process of cooling active carbon in addition, about 200-250 ° C, after in heat riser, being heated to again 500-600 ° of C, move on to heating zone, the temperature of active carbon is raise, finally from regenerator, deliver to atmosphere.After active carbon was discharged from regenerator, through sifting out, the active carbon that only is greater than 2.8mm entered in adsorption tower again, the active carbon micro mist leached from sieve or less than the granule of 2.8mm, collect in addition after re-use.According to the amounts of activated carbon from the system filtering, from the fresh active carbon of supply same amount fresh active carbon storage bin.
Active carbon in adsorption module is as the medium of removing pollution sources in flue gas, need to form benign cycle, in other words, in adsorption tower, by round and smooth discharging and charging, the pollution sources in adsorption tower are extracted out and regenerated rapidly, then the active carbon of regeneration is fed intake again, and when the active carbon of discharging in adsorption tower stops, for fear of phenomenons such as dewfall and corrosion, occur, the discharge rate of active carbon and internal circulating load, 220ppm is as the criterion with iron-smelter sinter fume sulphur oxide concentration, and with the active carbon total amount of whole module, comparing should be in 0.15-0.2 wt% scope; Active carbon is carried the maximum machine ability of equipment, and with the active carbon total amount, comparing should be in 0.3-0.4 wt% scope; Sulfoxide concentration is higher, and the machine capability of internal circulating load and conveying equipment should be improved accordingly.Active carbon is under the state of the pollution sources such as absorption oxysulfide, when in adsorption tower 4, regenerator and other storage tanks, stopping for a long time, for fear of in the following dewfall of acid dew point/phenomenons such as corrosion, occurring, heater, insulation are taked to and/or with measures such as nitrogen fillings in the outside of container, reduce and the contacting of oxygen.Active carbon has high abrasiveness, for fear of the mechanical wear generation of carrying equipment activated carbon granule to be pulverized fully or weakened, should select to drop to minimum equipment to friction.Usually to use the low abrasiveness such as bucket conveyor, flexible rubber conveyer belt to carry equipment.When carrying active carbon, hidden danger likely occurs in forward and backward technique, therefore needs to install the surge tank of suitable capacity in order to pooling feature can be provided; Active carbon and be attracted to wherein pollution sources in adsorption tower 4, regenerator and other storage tanks during long-term the stop, take heater, insulation and/or with measures such as nitrogen fillings, in order to avoid in the following dewfall of the acid dew point/phenomenons such as corrosion generation to container.
The active carbon that the present invention uses is, after by percentage by weight, being coordinated with tar (pitch) as brown coal 80% and bituminous coal 20%, to process through charing, finally through activation processing, makes.Certainly, the present invention also can use other active carbons or activated coke.
Existing active carbon, active carbon of the present invention and the active carbon of the present invention after chemokinesis have been carried out to the test to the oxysulfide adsorption capacity, and measured the oxysulfide be adsorbed in active carbon.Result of the test is presented in accompanying drawing 4.The active carbon of the present invention activated after chemical addition agent sprays is stronger than other two kinds of active carbons to the adsorption capacity of oxysulfide.After it should be noted that active carbon of the present invention activates, its oxysulfide adsorption capacity remains well in absorption and parsing circulation repeatedly, never goes down.This result of the test shows, the active carbon used in flue gas purification system its machinery and chemical characteristic in circulation technology are repeatedly faded.Active carbon of the present invention after chemokinesis will improve following functions: improve SWC(desulfurization load factor); By keeping chemical group, reduce the active carbon wearing and tearing; Avoid the inner clogging of adsorption tower to occur; In the denitrification process of adsorption tower, reduce ammonia consumption.
Above-described embodiment is described the preferred embodiment of the present invention; not scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; various distortion and improvement that those of ordinary skills make technical scheme of the present invention, all should fall in the definite protection domain of the claims in the present invention book.
Claims (8)
1. a smoke eliminator, comprise adsorption tower (4) and regenerator, and the charging aperture of described adsorption tower (4) is connected with the discharging opening of regenerator, and the discharging opening of described adsorption tower (4) is connected with the charging aperture of regenerator, it is characterized in that:
Described adsorption tower (4) comprises at least one adsorption module, at least one top storage tank (4s) and at least one bottom discharge tank (4k), described each adsorption module includes top storage bin (4c), denitration chamber (4b), desulfurization chamber (4a) and bottom storage bin (4l), described denitration chamber (4b) is positioned at desulfurization chamber (4a) top, between described denitration chamber (4b) and desulfurization chamber (4a), be provided with into ammonia chamber (4g), the bottom of entering ammonia chamber (4g) is connected with the top of desulfurization chamber (4a), describedly advance in ammonia chamber (4g) to be provided with at least one first air inlet doffer (4h), between described denitration chamber (4b) and desulfurization chamber (4a), be communicated with by the first air inlet doffer (4h), described the first air inlet doffer (4h) comprises bucket (4h1), lower bucket (4h2) and tube connector (4h3), described upper bucket (4h1) and lower bucket (4h2) be big up and small down infundibulate all, the upper end open of described upper bucket (4h1) is communicated with the bottom of denitration chamber (4b), described lower bucket (4h2) is sleeved on bucket (4h1), between lower bucket (4h2) and upper bucket (4h1), be provided with gap, the lower ending opening of lower bucket (4h2) is communicated with the upper end of tube connector (4h3), the lower end of tube connector (4h3) is communicated with the top of desulfurization chamber (4a), described bottom storage bin (4l) is positioned at desulfurization chamber (4a) below, between described bottom storage bin (4l) and desulfurization chamber (4a), be provided with bottom compartment (4e), in described bottom compartment (4e), be provided with at least one second air inlet doffer (4f), described the second air inlet doffer (4f) is identical with the first air inlet doffer (4h) structure, between described bottom storage bin (4l) and desulfurization chamber (4a), be communicated with by the second air inlet doffer (4f), the upper end open of the upper bucket of described the second air inlet doffer (4f) is communicated with the bottom of desulfurization chamber (4a), the lower end of the tube connector of the second air inlet doffer (4f) is communicated with bottom storage bin (4l), described top storage bin (4c) is positioned at the top of denitration chamber (4b), the top of described denitration chamber (4b) is provided with at least one blanking funnel (4n), the upper end of described blanking funnel (4n) is communicated with top storage bin (4c), the lower ending opening of blanking funnel (4n) is positioned at the top of denitration chamber (4b), described top storage tank (4s) is positioned at top storage bin (4c) top, and be communicated with top storage bin (4c), described bottom discharge tank (4k) is positioned at bottom storage bin (4l) below, and be communicated with bottom storage bin (4l), described top storage tank (4s) is connected with the charging aperture of adsorption tower, described bottom discharge tank (4k) is connected with the discharging opening of adsorption tower, in the bottom of described bottom compartment (4e), offer gas approach (4d), described, advance on ammonia chamber (4g) to offer the ammonia injection apparatus, at the top of denitration chamber (4b), offer exhanst gas outlet (4i), described gas approach (4d) is communicated with the air inlet of adsorption tower (4), described exhanst gas outlet (4i) is communicated with the gas outlet of adsorption tower (4).
2. smoke eliminator according to claim 1, it is characterized in that: described adsorption tower (4) comprises absorption module and support, described absorption module comprises at least one adsorption module group, at least 1 top storage tank (4s) and at least 1 bottom discharge tank (4k), described adsorption module group comprises 4 adsorption modules, 4 adsorption modules are divided into two-layer up and down, 2 every layer, the adsorption module adjacent with layer is fixedly connected with left and right between any two, between upper and lower two-layer adsorption module, also be fixedly connected with, the bottom of two adsorption modules of lower floor is connected with support with at least 1 movable part by a fixture, described movable part is positioned at the surrounding of fixture, fixture forms a fixed connection a little, movable part forms and is flexibly connected point, two parts up and down of described movable part can relatively move on horizontal plane, the top storage bin (4c) of each described adsorption module all is connected with four discharging openings of 1 tripper (4j) by 4 the second its top feed pipes (4m), each tripper (4j) charging aperture all is connected with top storage tank (4s) by 1 the first its top feed pipe (4t), the bottom storage bin (4l) of each described adsorption module all logical charge tube is connected with bottom discharge tank (4k).
3. smoke eliminator according to claim 2, it is characterized in that: described absorption module comprises two adsorption module groups, before and after two adsorption module groups, arrange, air inlet pipe (4q) and escape pipe (4r) are set between two adsorption module groups, one end of described air inlet pipe (4q) is connected with the air inlet of adsorption tower, the other end of air inlet pipe (4q) is connected with the gas approach (4d) of each adsorption module, one end of described escape pipe (4r) is connected with the exhanst gas outlet (4i) of each adsorption module, the other end of described escape pipe (4r) is communicated with the gas outlet of adsorption tower (4).
4. smoke eliminator according to claim 3 is characterized in that: when described absorption module is two when above, absorption module left and right between any two is arranged side by side, and between adjacent absorption module, has gap in twos.
5. smoke eliminator according to claim 4, it is characterized in that: also comprise regenerator and active device, the bottom discharge tank (4k) of described adsorption tower (4) is connected with the charging aperture of active device, the discharging opening of described active device is connected with the charging aperture of regenerator, the discharging opening of described regenerator is connected with the top storage tank (4s) of adsorption tower (4), described active device comprises housing, transfer device and additive shower, described additive shower is positioned at the top of transfer device, and the medicament of described additive shower spray is urea compounds.
6. smoke eliminator according to claim 5, it is characterized in that: also comprise fresh active carbon storage bin, the discharging opening of described fresh active carbon storage bin is communicated with the charging aperture of regenerator.
7. smoke eliminator according to claim 1 is characterized in that: the active carbon that described adsorption tower (4) is used is, after by percentage by weight, being coordinated with tar as brown coal 80% and bituminous coal 20%, to process through charing, final activated processing and making.
8. smoke eliminator according to claim 1, it is characterized in that: the flow velocity of the interior smoke gas flow of described adsorption tower (4) through desulfurization chamber and denitration chamber is 0.2-0.3m/sec.
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| CN201310274797.XA CN103405982B (en) | 2013-07-02 | 2013-07-02 | Smoke purification device |
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| CN201310274797.XA CN103405982B (en) | 2013-07-02 | 2013-07-02 | Smoke purification device |
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| CN112403192A (en) * | 2020-10-29 | 2021-02-26 | 攀枝花市蓝鼎环保科技有限公司 | Sintering flue gas treatment device capable of simultaneously performing desulfurization and denitrification |
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| CN114832594A (en) * | 2021-02-01 | 2022-08-02 | 中国石油化工股份有限公司 | Efficient treatment device and treatment method for hydrogen sulfide tail gas |
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| CN103405982B (en) | 2015-04-22 |
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