CN113318580A - Spraying and spraying desulfurization reaction tower - Google Patents
Spraying and spraying desulfurization reaction tower Download PDFInfo
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- CN113318580A CN113318580A CN202110469048.7A CN202110469048A CN113318580A CN 113318580 A CN113318580 A CN 113318580A CN 202110469048 A CN202110469048 A CN 202110469048A CN 113318580 A CN113318580 A CN 113318580A
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- flue gas
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/40—Combinations of devices covered by groups B01D45/00 and B01D47/00
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/80—Semi-solid phase processes, i.e. by using slurries
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/96—Regeneration, reactivation or recycling of reactants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/05—Stirrers
- B01F27/11—Stirrers characterised by the configuration of the stirrers
- B01F27/19—Stirrers with two or more mixing elements mounted in sequence on the same axis
- B01F27/192—Stirrers with two or more mixing elements mounted in sequence on the same axis with dissimilar elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
- B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
- B01F27/90—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis with paddles or arms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Abstract
The invention belongs to the technical field of flue gas desulfurization, and particularly relates to a spray desulfurization reaction tower; comprises a reaction tower, an air inlet pipeline, a dust removal device and a discharge pipeline; the dust removal device comprises a cyclone dust remover and a hopper; one end of the air inlet pipeline is connected with the cyclone dust collector, and the other end of the air inlet pipeline extends into the part, close to the bottom, in the conical pipe; the discharge pipeline is arranged in the middle of the upper surface of the tower top; the reaction tower comprises a tower body, a purification device and a tower top, wherein the purification device comprises a conical pipe, a liquid storage cavity and a sprayer; according to the invention, the dust removal device is additionally arranged before the sulfur-containing flue gas enters the desulfurization device main body, and desulfurization slurry circulation and cooling liquid circulation are adopted in the reaction tower body, so that the sulfur component in the high-temperature sulfur-containing flue gas is removed more thoroughly, the cooling effect and the dust removal effect are more obvious, and the harm of the sulfur-containing flue gas to the natural environment is greatly reduced.
Description
Technical Field
The invention belongs to the technical field of flue gas desulfurization, and particularly relates to a spray desulfurization reaction tower.
Background
China has a large population, and is a country with large coal reserves and yields and a country with large energy consumption. In a long period of time, the primary energy of China mainly adopts coal, and the pattern is not changed. Sulfur in coal exists in the form of sulfides, sulfates, and organic sulfur. During the combustion process of coal, part of low-valence sulfide is directly oxidized into sulfur trioxide, and stable sulfate is formed; the other part is oxidized to sulfur dioxide. Most of the sulfur dioxide can react with the high-temperature alkaline material and oxygen again to form sulfate. The remaining small part of sulfur dioxide enters a chimney and is discharged into the atmosphere, and the sulfur dioxide is colorless gas with strong irritation, can form acid rain and is one of the main atmospheric pollutants facing China. The sulfate generated by the reaction mainly comprises potassium sulfate, sodium sulfate, calcium sulfate and other compounds, the melting temperature of the compounds is 1067 ℃, 884 ℃ and 1450 ℃, the compounds can generate the phenomena of skinning and blocking at the proper temperature parts of a furnace cone part, a throat, a four-stage cylinder, a five-stage cylinder and the like, if reducing gas exists, the sulfate mineral generates sulfur dioxide and dust again under the reduction of carbon monoxide and carbon, or the sulfate mineral generates the phenomenon of volatilization under the condition that the temperature exceeds 1500 ℃, and participates in internal circulation. The control method of sulfur dioxide and dust is divided into pre-combustion, middle combustion and post-combustion from three stages of the life cycle of fuel. Desulfurization before and during combustion is difficult and costly, and there are few related studies, and almost all of them focus on the control of sulfur dioxide and dust after combustion. The control measures after combustion can be divided into dry method, semi-dry method and wet method according to the operation characteristics, but the traditional method adopted in the prior art has high use cost and poor desulfurization and dust removal effects.
A technical scheme of a spray tower for flue gas desulfurization also appears in the prior art, and for example, a chinese patent with application number CN2019210862510 discloses a spray tower for flue gas desulfurization, which comprises a reaction tower, a flue gas conveying pipeline, a solution circulating system, a smoke disturbing structure and a smoke exhaust pipeline; the upper and lower separation reaction towers of the smoke disturbance structure are a spraying chamber and a solution chamber, a liquid inlet of the solution circulating system is positioned at the bottom of the solution chamber, a liquid outlet of the solution circulating system is communicated above the spraying chamber, the smoke conveying pipeline is communicated with the bottom of the solution chamber, and the smoke exhaust pipeline is connected with the top of the spraying chamber; the utility model provides a spray column for flue gas desulfurization, the spray column lets the flue gas more even flow in the reaction tower through the pressure-limiting valve, and the smoke disturbance structure can absorb flue gas and spraying into the structure simultaneously and react, because the reaction chamber of smoke disturbance structure is waist type cylinder, can let flue gas and spraying fully react, and the solution circulation system in the device can spray solution many times, increases the utilization efficiency of solution; however, the invention still has the defects that only the sulfur component in the industrial flue gas is purified, and actually the sulfur-containing flue gas generated in the industrial production is accompanied by more dust, if the dust removal treatment is not carried out, excessive dust is accumulated in the equipment after long-time operation to influence the operation of the equipment, and the discharged dust also causes environmental pollution; and the sulfur-containing flue gas generated after coal combustion is high in temperature, the solubility of sulfur dioxide is reduced due to high temperature, the desulfurization efficiency is reduced, the high-temperature flue gas is an examination on brittle materials in the tower, the service life of the high-temperature flue gas can be reduced, but the cooling effect of the high-temperature sulfur-containing flue gas is not obvious, so that the technical scheme is limited.
In view of this, the present invention provides a spray-spray desulfurization tower to solve the above technical problems.
Disclosure of Invention
In order to make up for the defects of the prior art and solve the problems that the prior spray desulfurization reaction tower has poor dust removal and cooling effects when treating high-temperature sulfur-containing flue gas, so that the desulfurization effect is incomplete and the environment is greatly damaged, the invention provides the spray desulfurization reaction tower.
The technical scheme adopted by the invention for solving the technical problems is as follows: a spray desulfurization reaction tower comprises a reaction tower, an air inlet pipeline, a dust removal device and a discharge pipeline, wherein the reaction tower comprises a tower body, a purification device and a tower top, and the tower top is arranged at the top of the tower body; the dust removal device comprises a cyclone dust collector and a hopper, the cyclone dust collector is arranged outside the reaction tower, and the hopper is arranged at the position, close to the bottom, of the cyclone dust collector; one end of the air inlet pipeline is connected with the cyclone dust collector, and the other end of the air inlet pipeline extends into the part, close to the bottom, in the conical pipe; the discharge pipeline is arranged in the middle of the upper surface of the tower top, and a water baffle is arranged in the discharge pipeline; the purification device comprises a conical pipe, a liquid storage cavity and a sprayer, wherein the conical pipe is arranged in the middle of the inner surface of the bottom of the tower body, and the bottom of the conical pipe is filled with desulfurization slurry; the liquid storage cavity is arranged on the inner surface of the side wall of the conical pipe and close to the top, and the liquid storage cavity is filled with desulfurization slurry; the sprayers are uniformly arranged on the outer surface of the side wall of the liquid storage cavity and close to the bottom; the top of the conical pipe is communicated with the bottom end of the discharge pipeline; a rotating shaft is arranged in the middle of the bottom of the tower body; the rotating shaft is rotatably connected with the bottom of the tower body, and a bearing is arranged at the joint of the rotating shaft and the bottom of the tower body; a rotating turbine is arranged on the rotating shaft and close to the bottom, the end part of the air inlet pipeline positioned in the tower body is conical, and the end part of the air inlet pipeline is right opposite to the surface of a blade of the rotating turbine; a group of first rotating plates are uniformly arranged at the position of the rotating shaft, which is positioned in the middle of the conical tube; a first circulating pump is arranged on the outer surface of the side wall of the tower body close to the middle part, and a first circulating pipe is arranged on the first circulating pump; one end of the first circulating pipe is introduced into the desulfurization slurry filled at the bottom of the conical pipe, and the other end of the first circulating pipe is introduced into one side of the inner surface of the side wall of the liquid storage cavity, which is close to the top; the bottom end of the first circulating pipe is provided with a filter screen.
When the cyclone dust collector works, high-temperature sulfur-containing flue gas is subjected to primary dust removal through the cyclone dust collector, so that excessive dust particles are prevented from being mixed into desulfurization slurry after the flue gas with excessively high dust content is directly introduced into a tower body, and the desulfurization efficiency is reduced or the frequency of replacing and supplementing the desulfurization slurry is improved; dust particles removed by the cyclone dust collector can be collected in a hopper at the bottom of the dust collector, flue gas subjected to primary dust removal is introduced into desulfurization slurry filled between the bottom end of the conical pipe and the tower body along with an air inlet pipeline, sulfur-containing flue gas is mixed and contacted with the desulfurization slurry, the slurry absorbs partial sulfur components and heat in the flue gas, and meanwhile, the dust particles are further removed; the flow velocity of the sulfur-containing flue gas is high when the sulfur-containing flue gas is discharged from the dust removal device, the end part of the air inlet pipeline, which is positioned in the tower body, is right opposite to the surface of the blade of the rotating turbine, and the end part of the air inlet pipeline is conical, so that the sulfur-containing flue gas is pressed when flowing at the conical part of the air inlet pipeline, the speed of the sulfur-containing flue gas is further accelerated, the sulfur-containing flue gas directly impacts the surface of the blade of the rotating turbine to drive the rotating turbine to rotate through impact, and the rotating turbine can stir the desulfurization slurry at the bottom through rotating, so that the desulfurization slurry is further mixed with the flue gas under the stirring action, and dust and sulfur-containing components in the flue gas are removed, and the desulfurization efficiency is further improved; the stirring action of the rotating turbine can enable bubbles formed by the retained flue gas in the desulfurization slurry to escape in time, so that a large amount of flue gas is prevented from accumulating in the desulfurization slurry, and the purification efficiency of the flue gas is prevented from being influenced; along with the increasing of the introduction amount of the flue gas, the sulfur-containing flue gas is flushed out of the desulfurization slurry and flows upwards into the conical pipe, meanwhile, the desulfurization slurry in the liquid storage cavity close to the upper part of the conical pipe is sprayed downwards by the sprayer on the outer surface of the side wall of the liquid storage cavity, the sprayed desulfurization slurry is in a fog shape, the high-temperature sulfur-containing flue gas and the desulfurization slurry fog are subjected to reverse intersection and mixing, the fog-shaped slurry is more fully contacted with the sulfur-containing flue gas in the reverse intersection process, the reaction degree is more thorough, and sulfur components in the sulfur-containing flue gas can be further removed; meanwhile, due to the effects of inertial collision, interception, coagulation and the like between dust particles and liquid drops, larger dust particles are captured by the liquid drops and fall down, the dust content in the sulfur-containing flue gas is further reduced, and the desulfurization slurry mist is fully contacted with the flue gas, so that the slurry mist absorbs the heat of the high-temperature flue gas, and the temperature of the flue gas can be effectively reduced; the rotating turbine rotates to drive the rotating shaft to rotate, namely, the first rotating plate on the rotating shaft also rotates, and the first rotating plate rotates to stir the sulfur-containing flue gas and the desulfurization slurry mist in the conical tube, so that the sulfur-containing flue gas and the desulfurization slurry mist are mixed more fully, and the purification efficiency of sulfur components in the flue gas is further improved; the first rotating plate drives the sulfur-containing flue gas and the desulfurization slurry fog to rotate, so that the sulfur-containing flue gas and the desulfurization slurry fog are subjected to centrifugal action, the desulfurization slurry fog contacts the inner surface of the side wall of the conical tube under the centrifugal action and flows along the inner surface of the side wall of the conical tube, sulfur-containing impurity components in the flue gas deviate towards the direction close to the inner surface of the side wall of the conical tube under the centrifugal action and further contact with slurry flowing on the inner surface of the side wall of the conical tube, and the purification efficiency of the flue gas is further improved; the first rotating plate accelerates the flue gas to rotate while ascending, so that the ascending path of the flue gas in the conical tube is increased, sulfur-containing impurity components in the flue gas are more fully absorbed by sulfur-containing slurry in the conical tube, and the working efficiency of the invention is further improved; meanwhile, under the matching action of a first circulating pump and a first circulating pipe which are arranged on the side wall of the tower body and are close to the middle part, the desulfurization slurry at the bottom of the conical pipe can be conveyed into the liquid storage cavity, and is sprayed downwards from the liquid storage cavity through the sprayer and finally returns to the bottom of the conical pipe, so that the circulation of the desulfurization slurry is formed, the utilization efficiency of the desulfurization slurry is effectively improved, and when the desulfurization efficiency is reduced to a certain standard after the desulfurization slurry purifies flue gas, the desulfurization slurry at the bottom of the conical pipe can be continuously supplemented by external fresh desulfurization slurry, so that the desulfurization efficiency is ensured; the bottom end of the first circulating pipe is provided with the filter screen, so that solid impurities and residues remained in desulfurization slurry at the bottom end of the conical pipe due to flue gas treatment can be prevented from being sucked away by the first circulating pipe under the action of the filter screen, and the first circulating pipe is blocked or even damages the sprayer after entering the liquid storage cavity, and the working stability of the invention is further improved; the flue gas after retreating continues upwards to flow into the discharge pipeline, and the water baffle that sets up in the discharge pipeline can be to remaining thick liquid moisture separation once more and absorption in the flue gas after the purification, prevents that the thick liquid composition that vaporizes from discharging along with the flue gas after the purification and causing secondary pollution, and the flue gas after final processing is discharged the reaction tower from the discharge pipeline.
Preferably, an annular cooling tank is arranged in the tower body and close to the top end, and the bottom of the annular cooling tank is connected with the outer surface of the conical pipe; the annular cooling tank is filled with cooling liquid, and through grooves are uniformly formed in the combination part of the bottom of the annular cooling tank and the outer surface of the conical pipe; a second circulating pump is arranged on the outer surface of the side wall of the tower body close to the middle part, and a second circulating pipe is arranged on the second circulating pump; one end of the second circulating pipe is introduced into the cooling liquid on the inner surface of the side wall of the tower body and on the outer surface of the side wall of the conical pipe, which is close to the bottom, and the other end of the second circulating pipe is introduced into the position on the inner surface of the side wall of the annular cooling tank, which is close to the top; and a heat exchanger is arranged on the second circulating pipe and is close to the outer surface of the bottom end of the tower body.
When the cooling tower works, under the action of a second circulating pump arranged at a position, close to the middle part, of the side wall of the tower body, cooling liquid in a region, close to the bottom, between the side wall of the tower body and the side wall of the conical pipe is conveyed into the annular cooling tank along the second circulating pipe, the cooling liquid flows out of the through groove, uniformly flows down along the outer surface of the side wall of the conical pipe and finally returns to the bottom of the side wall of the tower body, and circulation of the cooling liquid is formed; the flowing cooling liquid forms a uniform cooling water film on the outer surface of the side wall of the conical tube, and absorbs the heat of the high-temperature sulfur-containing flue gas in the conical tube through the side wall of the conical tube, so that the cooling effect of the reaction tower on the high-temperature sulfur-containing flue gas is further improved; meanwhile, the cooling liquid accumulated between the side wall of the tower body and the conical tube and close to the bottom region can also cool the desulfurization slurry in the conical tube and close to the bottom region, so that the cooling effect when the flue gas and the slurry are mixed is further improved; the cooling liquid between the side wall of the tower body and the conical pipe and near the bottom area absorbs a large amount of heat, under the action of the heat exchanger arranged on the second circulating pipe, the cooling liquid with high temperature is converted into the cooling liquid with low temperature again, and the cooling liquid is conveyed to the annular cooling tank to participate in the circulation of the cooling liquid again, and the converted heat energy can be used for other purposes such as power generation, heating and the like, so that the waste of heat energy resources is prevented; when the flue gas is cooled through the side wall of the conical pipe, the flue gas flows from bottom to top in the conical pipe, the temperature of the flue gas at the bottom of the conical pipe is highest, the cooling liquid flows from top to bottom along the outer surface of the side wall of the conical pipe, and the temperature of the cooling liquid flowing out of the through groove at the contact position of the outer surface of the side wall of the conical pipe and the annular cooling tank is lowest under the action of the heat exchanger, so that reverse heat exchange with the largest average temperature difference between the flue gas and the cooling liquid is realized, the cooling liquid plays a heat absorption role to the greatest extent, the heat exchange efficiency is improved, the temperatures of desulfurization slurry mist and the flue gas in the conical pipe are further reduced, and the working efficiency of the invention is further improved.
Preferably, each first rotating plate is in an inverted cone shape, and the rotating plates are arranged in an inclined mode.
When the device works, the first rotating plate is in an inverted cone shape, and airflow impact is generated towards the bottom end of the conical tube during rotation, so that sulfur-containing flue gas rising from the bottom end of the conical tube is diffused towards the lower part and the periphery of the first rotating plate under the impact of the airflow, the flue gas is more fully contacted with the inner surface of the side wall of the conical tube and is further cooled and purified, the flow velocity of the flue gas is reduced due to obstruction, the purification time and the cooling time of the flue gas in a tower are prolonged, the working efficiency of the device is further improved, meanwhile, the flowing heat dissipation of cooling liquid on the outer surface of the side wall of the conical tube is further matched, and the cooling efficiency of the device on high-temperature flue gas is improved;
preferably, the surface of each first rotating plate is provided with uniformly distributed pressure relief grooves.
When the rotary plate rotates and contacts sulfur-containing flue gas and desulfurization slurry fog, a part of sulfur-containing flue gas and desulfurization slurry fog can pass through the empty pressure relief groove, so that impact and resistance on the surface of the rotary plate are reduced, and the rotary plate is prevented from being damaged due to too large blockage in the rotating process, and further the desulfurization efficiency and the cooling efficiency of the high-temperature sulfur-containing flue gas desulfurization tower are influenced.
Preferably, the annular cooling tank is arranged at an outlet position close to the top of the conical pipe, the side wall of the annular cooling tank is in close contact with the outer surface of the side wall of the top of the conical pipe, and the side wall of the conical pipe above the liquid storage cavity is made of aluminum-copper alloy; the top of the rotating shaft extends into the position, close to the top end, of the conical tube, and a group of second rotating plates are mounted at the position, close to the top end, of the rotating shaft.
When the device works, purified flue gas flows upwards to the top of the conical pipe, the inner second rotating plate rotates along with the rotating shaft, the second rotating plate drives the purified flue gas to rotate, so that the purified flue gas is subjected to centrifugal action, liquefied slurry components in the purified flue gas deviate towards the direction close to the inner surface of the side wall of the conical pipe under the centrifugal action, the side wall of the top of the conical pipe is made of aluminum-copper alloy with high heat conduction efficiency, meanwhile, the side wall of the annular cooling tank is in close contact with the outer surface of the side wall of the top of the conical pipe, the purified flue gas is in contact with the side wall of the top of the conical pipe, the heat of the purified flue gas is transferred to the side wall of the annular cooling tank by the side wall of the top of the conical pipe, and because cooling liquid in the annular cooling tank circularly flows after being processed by the heat exchanger, namely, the vaporized slurry is fully condensed and liquefied on the inner surface of the side wall of the top of the conical pipe, and the separation of the vaporized slurry and the processed flue gas is realized, the vaporized slurry components contained in the purified flue gas are further removed, so that secondary pollution caused by the discharge of the vaporized slurry along with the purified flue gas is further prevented; the condensed liquid beads flow back to the desulfurization slurry at the bottom of the conical tube along the inner surface of the side wall at the top of the conical tube and the upper wall of the liquid storage cavity which is inclined downwards.
Preferably, every No. two rotating plate surfaces are equipped with evenly distributed's drainage groove, and every the tip of drainage groove all just faces the toper pipe lateral wall internal surface.
The during operation, the drainage groove that No. two rotor plates were equipped with can be in the rotation with the flue gas guide after purifying to toper pipe lateral wall internal surface, and because the lateral wall internal surface at toper pipe top is less, the contact of purification back flue gas and No. two rotor plates becomes more, so have the thick liquid moisture in some purification back flue gas and become the liquid pearl at the condensation of No. two rotor plate surfaces, can get rid of the thick liquid composition that vaporizes that contains in the purification back flue gas under the effect of extending to the drainage groove at No. two rotor plate edges this moment, through rotating with the condensation liquid pearl get rid of toper pipe lateral wall internal surface, further detached.
The invention has the following beneficial effects:
1. according to the spray desulfurization reaction tower, the dust removal device is additionally arranged before the sulfur-containing flue gas enters the purification device main body, so that the dust content in the sulfur-containing flue gas is effectively reduced, and the desulfurization slurry circulation and the cooling liquid circulation are adopted in the reaction tower body, so that the sulfur component in the high-temperature sulfur-containing flue gas is removed more thoroughly, the cooling effect is more obvious, and the harm to the natural environment is greatly reduced.
2. According to the spray desulfurization reaction tower, the rotating turbine, the first rotating plate and the second rotating plate are arranged on the rotating shaft in the conical tube, so that the desulfurization slurry mist and the high-temperature sulfur-containing flue gas are mixed more thoroughly, the desulfurization slurry mist and the high-temperature sulfur-containing flue gas are contacted with the inner surface of the side wall of the conical tube more frequently, and the desulfurization and cooling efficiency of the reaction tower and the dehumidification efficiency of the purified flue gas are further improved.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a cross-sectional view of the present invention;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is an enlarged view of a portion of FIG. 2 at B;
FIG. 5 is an enlarged view of a portion of FIG. 2 at C;
FIG. 6 is a perspective view of a first rotating plate of the present invention;
in the figure: the device comprises a reaction tower 1, a tower body 11, a purification device 12, a conical pipe 121, a liquid storage cavity 122, an atomizer 123, a tower top 13, a first circulating pump 14, a first circulating pipe 15, a filter screen 151, an annular cooling tank 16, a through groove 161, a second circulating pump 17, a second circulating pipe 18, a heat exchanger 181, a rotating shaft 19, a rotating turbine 191, a first rotating plate 192, a pressure relief groove 193, a second rotating plate 194, a drainage groove 195, a bearing 196, an air inlet pipeline 2, a dust removal device 3, a cyclone dust remover 31, a hopper 32, a discharge pipeline 4 and a water baffle 41.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
As shown in fig. 1 to 6, the spray desulfurization reaction tower of the present invention comprises a reaction tower 1, an air inlet pipe 2, a dust removing device 3 and a discharge pipe 4, wherein the reaction tower 1 comprises a tower body 11, a purifying device 12 and a tower top 13, and the tower top 13 is installed on the top of the tower body 11; the dust removing device 3 comprises a cyclone dust remover 31 and a hopper 32, wherein the cyclone dust remover 31 is arranged outside the reaction tower 1, and the hopper 32 is arranged at the position, close to the bottom, of the cyclone dust remover 31; one end of the air inlet pipeline 2 is connected with the cyclone dust collector 31, and the other end of the air inlet pipeline extends into the part, close to the bottom, in the conical pipe 121; the discharge pipeline 4 is arranged in the middle of the upper surface of the tower top 13, and a water baffle plate 41 is arranged in the discharge pipeline 4; the purification device 12 comprises a conical pipe 121, a liquid storage cavity 122 and a sprayer 123, wherein the conical pipe 121 is installed in the middle of the inner surface of the bottom of the tower body 11, and the bottom of the conical pipe 121 is filled with desulfurization slurry; the liquid storage cavity 122 is arranged on the inner surface of the side wall of the conical pipe 121 close to the top, and the liquid storage cavity 122 is filled with desulfurization slurry; the sprayers 123 are uniformly arranged on the outer surface of the side wall of the liquid storage cavity 122 near the bottom; the top of the conical pipe 121 is communicated with the bottom end of the discharge pipeline 4; a rotating shaft 19 is arranged in the middle of the bottom of the tower body 11; the rotating shaft 19 is rotatably connected with the bottom of the tower body 11, and a bearing 196 is arranged at the joint of the rotating shaft 19 and the bottom of the tower body 11; a rotating turbine 191 is installed on the rotating shaft 19 at a position close to the bottom, the end of the air inlet pipeline 2 located inside the tower body 11 is conical, and the end faces the blade surface of the rotating turbine 191; a group of first rotating plates 192 are uniformly arranged at the position of the rotating shaft 19, which is positioned in the middle of the conical pipe 121; a first circulating pump 14 is arranged on the outer surface of the side wall of the tower body 11 near the middle part, and a first circulating pipe 15 is arranged on the first circulating pump 14; one end of the first circulating pipe 15 is introduced into the desulfurization slurry filled at the bottom of the conical pipe 121, and the other end is introduced into one side of the inner surface of the side wall of the liquid storage cavity 122, which is close to the top; the bottom end of the first circulation pipe 15 is provided with a filter screen 151.
When the cyclone dust collector works, high-temperature sulfur-containing flue gas is subjected to primary dust collection through the cyclone dust collector 31, so that excessive dust particles are prevented from being mixed into desulfurization slurry after the flue gas with excessively high dust content is directly introduced into a tower body, and the desulfurization efficiency is reduced or the frequency of replacing and supplementing the desulfurization slurry is improved; the dust particles removed by the cyclone dust collector 31 are collected in a hopper 32 at the bottom of the dust collector, the flue gas after primary dust removal is introduced into the desulfurization slurry filled between the bottom end of the conical pipe 121 and the tower body 11 along with the air inlet pipeline 2, the sulfur-containing flue gas is mixed and contacted with the desulfurization slurry, the slurry absorbs partial sulfur components and heat in the flue gas, and meanwhile, the dust particles are further removed; the flow velocity of the sulfur-containing flue gas is high when the sulfur-containing flue gas is discharged from the dust removal device 3, and the end part of the air inlet pipeline 2, which is positioned in the tower body 11, faces the surface of the blade of the rotating turbine 191, because the end part of the air inlet pipeline 2 is conical, the sulfur-containing flue gas is pressed when flowing at the conical part of the air inlet pipeline 2, the speed of the sulfur-containing flue gas is further accelerated, the sulfur-containing flue gas directly impacts the surface of the blade of the rotating turbine 191 to drive the rotating turbine 191 to rotate, and the rotating turbine 191 rotates to stir the desulfurization slurry at the bottom, so that the desulfurization slurry is further mixed with the flue gas under the stirring action, and dust and sulfur-containing components in the flue gas are removed, and the desulfurization efficiency is further improved; and the stirring action of the rotating turbine 191 can enable bubbles formed by the flue gas retained in the desulfurization slurry to escape in time, so that a large amount of flue gas is prevented from accumulating inside the desulfurization slurry, and the purification efficiency of the flue gas is prevented from being influenced; along with the increasing of the introduction amount of the flue gas, the sulfur-containing flue gas is flushed out of the desulfurization slurry and flows upwards into the conical pipe 121, meanwhile, the desulfurization slurry in the liquid storage cavity 122 close to the upper part of the conical pipe 121 is sprayed downwards by the sprayer 123 on the outer surface of the side wall of the liquid storage cavity 122, the sprayed desulfurization slurry is in a mist shape, the high-temperature sulfur-containing flue gas and the desulfurization slurry mist are in reverse intersection and are mixed, the mist slurry is in contact with the sulfur-containing flue gas more fully in the reverse intersection process, the reaction degree is more thorough, and sulfur components in the sulfur-containing flue gas can be further removed; meanwhile, due to the effects of inertial collision, interception, coagulation and the like between dust particles and liquid drops, larger dust particles are captured by the liquid drops and fall down, the dust content in the sulfur-containing flue gas is further reduced, and the desulfurization slurry mist is fully contacted with the flue gas, so that the slurry mist absorbs the heat of the high-temperature flue gas, and the temperature of the flue gas can be effectively reduced; the rotating turbine 191 rotates to drive the rotating shaft 19 to rotate, namely, the first rotating plate 192 on the rotating shaft 19 also rotates, and the first rotating plate 192 rotates to stir the sulfur-containing flue gas and the desulfurization slurry fog in the conical tube 121, so that the sulfur-containing flue gas and the desulfurization slurry fog are mixed more fully, and the purification efficiency of sulfur components in the flue gas is further improved; the first rotating plate 192 drives the sulfur-containing flue gas and the desulfurization slurry fog to rotate, so that the sulfur-containing flue gas and the desulfurization slurry fog are subjected to centrifugal action, the desulfurization slurry fog contacts the inner surface of the side wall of the conical pipe 121 under the centrifugal action and flows along the inner surface of the side wall of the conical pipe 121, sulfur-containing impurity components in the flue gas deviate towards the direction close to the inner surface of the side wall of the conical pipe 121 under the centrifugal action and further contact the slurry flowing on the inner surface of the side wall of the conical pipe 121, and the purification efficiency of the flue gas is further improved; the first rotating plate 192 accelerates the flue gas to rotate while ascending, so that the ascending distance of the flue gas in the conical tube 121 is increased, sulfur-containing impurity components in the flue gas are more fully absorbed by sulfur-containing slurry in the conical tube 121, and the working efficiency of the invention is further improved; meanwhile, under the cooperation of the first circulating pump 14 and the first circulating pipe 15 which are arranged on the side wall of the tower body 11 and are close to the middle part, the desulfurization slurry at the bottom of the conical pipe 121 can be conveyed into the liquid storage cavity 122, and is sprayed downwards from the liquid storage cavity 122 through the sprayer 123 and finally returns to the bottom of the conical pipe 121, so that the circulation of the desulfurization slurry is formed, the utilization efficiency of the desulfurization slurry is effectively improved, and when the desulfurization efficiency is reduced to a certain standard in the process of purifying flue gas by the desulfurization slurry, the desulfurization slurry at the bottom of the conical pipe 121 can be continuously supplemented by external fresh desulfurization slurry, so that the desulfurization efficiency is ensured; the filter screen 151 is arranged at the bottom end of the first circulating pipe 15, so that solid impurities and residues remained in the desulfurization slurry at the bottom end of the conical pipe 121 due to the treatment of flue gas can be prevented from being sucked away by the first circulating pipe 15, and then the desulfurization slurry enters the liquid storage cavity 122 and then blocks or even damages the sprayer 123, and the working stability of the desulfurization tower is further improved; the flue gas after the secondary treatment continues to flow upwards into the discharge pipeline 4, the water baffle plate 41 arranged in the discharge pipeline 4 can separate and absorb the residual slurry water in the purified flue gas again, so that the vaporized slurry component is prevented from being discharged along with the purified flue gas to cause secondary pollution, and the finally treated flue gas is discharged out of the reaction tower 1 from the discharge pipeline 4.
As an embodiment of the present invention, an annular cooling tank 16 is disposed inside the tower body 11 near the top end, and the bottom of the annular cooling tank 16 is connected to the outer surface of the conical tube 121; the annular cooling tank 16 is filled with cooling liquid, and through grooves 161 are uniformly formed in the joint of the bottom of the annular cooling tank 16 and the outer surface of the conical pipe 121; a second circulating pump 17 is arranged on the outer surface of the side wall of the tower body 11 near the middle part, and a second circulating pipe 18 is arranged on the second circulating pump 17; one end of the second circulating pipe 18 is introduced into the cooling liquid on the inner surface of the side wall of the tower body 11 and on the outer surface of the side wall of the conical pipe 121 close to the bottom, and the other end is introduced into the position on the inner surface of the side wall of the annular cooling tank 16 close to the top; the second circulation pipe 18 is provided with a heat exchanger 181 at a position close to the outer surface of the bottom end of the tower body 11.
During operation, under the action of a second circulating pump 17 arranged at a position, close to the middle, of the side wall of the tower body 11, cooling liquid located between the side wall of the tower body 11 and the side wall of the conical pipe 121 and close to the bottom region is conveyed into the annular cooling tank 16 along the second circulating pipe 18, the cooling liquid flows out of the through groove 161, uniformly flows down along the outer surface of the side wall of the conical pipe 121, and finally returns to the bottom of the side wall of the tower body 11, so that circulation of the cooling liquid is formed; the flowing cooling liquid forms a uniform cooling water film on the outer surface of the side wall of the conical tube 121, and absorbs the heat of the high-temperature sulfur-containing flue gas in the conical tube 121 through the side wall of the conical tube 121, so that the cooling effect of the reaction tower 1 on the high-temperature sulfur-containing flue gas is further improved; meanwhile, the cooling liquid accumulated in the area between the side wall of the tower body 11 and the conical tube 121 close to the bottom can also cool the desulfurization slurry in the conical tube 121 close to the bottom, so that the cooling effect when the flue gas and the slurry are mixed is further improved; the cooling liquid between the side wall of the tower body 11 and the conical pipe 121 and near the bottom area absorbs a large amount of heat, under the action of the heat exchanger 181 mounted on the second circulating pipe 18, the cooling liquid with high temperature is converted into cooling liquid with low temperature again, and is conveyed to the annular cooling tank 16 to participate in the cooling liquid circulation again, and the converted heat energy can be used for other purposes such as power generation, heating and the like, so that the waste of heat energy resources is prevented; when the temperature of the flue gas is reduced through the side wall of the conical tube 121, the flue gas flows from bottom to top in the conical tube 121, the temperature of the flue gas at the bottom of the conical tube 121 is highest, and the cooling liquid flows from top to bottom along the outer surface of the side wall of the conical tube 121, and due to the action of the heat exchanger 181, the temperature of the cooling liquid flowing out of the through groove 161 at the contact position of the outer surface of the side wall of the conical tube 121 and the annular cooling tank 16 is lowest, so that reverse heat exchange with the largest average temperature difference between the flue gas and the cooling liquid is realized, the cooling liquid plays a heat absorption role to the greatest extent, the heat exchange efficiency is improved, the temperatures of the desulfurization slurry mist and the flue gas in the conical tube 121 are reduced, and the working efficiency of the desulfurization slurry spray gun is further improved.
In one embodiment of the present invention, each of the first rotating plates 192 has an inverted cone shape, and the rotating plate 19 is disposed in an inclined manner.
When the device works, the first rotating plate 192 is in an inverted cone shape, and airflow impact is generated towards the bottom end of the conical tube 121 during rotation, so that sulfur-containing flue gas rising from the bottom end of the conical tube 121 is diffused towards the lower part and the periphery of the first rotating plate 192 under the impact of the airflow, the flue gas is more fully contacted with the inner surface of the side wall of the conical tube 121 and is further cooled and purified, the flow velocity of the flue gas is reduced due to obstruction, the purification time and the cooling time of the flue gas in a tower are prolonged, the working efficiency of the device is further improved, and meanwhile, the flowing heat dissipation of cooling liquid on the outer surface of the side wall of the conical tube 121 is further matched, so that the cooling efficiency of the device on high-temperature flue gas is improved;
in one embodiment of the present invention, the first rotating plate 192 is provided with a plurality of pressure relief grooves 193 uniformly distributed on the surface thereof.
When the rotary plate 192 rotates and contacts sulfur-containing flue gas and desulfurization slurry fog, a part of sulfur-containing flue gas and desulfurization slurry fog can pass through the empty pressure relief groove 193, so that impact and resistance on the surface of the rotary plate 192 are reduced, and the rotary plate 192 is prevented from being damaged due to too large blockage in the rotating process, so that the desulfurization efficiency and the cooling efficiency of the high-temperature sulfur-containing flue gas are further influenced.
As an embodiment of the present invention, the annular cooling tank 16 is disposed at an outlet position near the top of the conical tube 121, and the side wall of the annular cooling tank 16 is in close contact with the outer surface of the side wall of the top of the conical tube 121, and the side wall of the conical tube 121 above the liquid storage cavity 122 is made of aluminum-copper alloy; the top of the rotating shaft 19 extends into the position, close to the top end, of the conical tube 121, and a group of second rotating plates 194 are mounted on the position, close to the top end, of the rotating shaft 19.
When the device works, the purified flue gas flows upwards to the top of the conical pipe 121, the second rotating plate 194 inside the conical pipe rotates along with the rotating shaft 19, the second rotating plate 194 drives the purified flue gas to rotate, so that the purified flue gas is subjected to centrifugal action, liquefied slurry components in the purified flue gas deviate towards the direction close to the inner surface of the side wall of the conical pipe 121 under the centrifugal action, the side wall of the top of the conical pipe 121 is made of aluminum-copper alloy with high heat conduction efficiency, meanwhile, the side wall of the annular cooling tank 16 is in close contact with the outer surface of the side wall of the top of the conical pipe 121, the purified flue gas is in contact with the side wall of the top of the conical pipe 121, the heat of the purified flue gas is transferred to the side wall of the annular cooling tank 16 by the side wall of the top of the conical pipe, and because the cooling liquid in the annular cooling tank 16 circularly flows after being processed by the heat exchanger 181, namely, the vaporized slurry is fully condensed and liquefied on the inner surface of the side wall of the top of the conical pipe 121, so as to realize the separation of the vaporized slurry and the treated flue gas, the vaporized slurry components contained in the purified flue gas are further removed, so that secondary pollution caused by the discharge of the vaporized slurry along with the purified flue gas is further prevented; the condensed liquid beads flow back to the desulfurization slurry at the bottom of the conical tube 121 along the inner surface of the side wall of the top of the conical tube 121 and the upper wall of the liquid storage chamber 122 which is inclined downwards.
In one embodiment of the present invention, the surface of each second rotating plate 194 is provided with evenly distributed drainage grooves 195, and the end of each drainage groove 195 faces the inner surface of the side wall of the conical tube 121.
During operation, the drainage groove 195 that No. two rotating plate 194 was equipped with can be in rotating the flue gas after purifying and guide to conical tube 121 lateral wall internal surface, and because the lateral wall internal surface at conical tube 121 top is less, the contact of flue gas after purifying and No. two rotating plate 194 becomes more, so the thick liquid moisture that has some flue gas after purifying condenses into the liquid pearl on No. two rotating plate 194 surfaces, can be through extending to under the effect of the drainage groove 195 at No. two rotating plate 194 edges this moment, through rotating and get rid of the thick liquid pearl of condensation to conical tube 121 lateral wall internal surface, the gasification thick liquid composition that contains in the flue gas after further having detached.
The specific working process is as follows:
firstly, the high-temperature sulfur-containing flue gas is subjected to primary dust removal through the cyclone dust collector 31, so that excessive dust particles are prevented from being mixed into the desulfurization slurry after the flue gas with excessively high dust content is directly introduced into the tower body, and the desulfurization efficiency is reduced or the frequency of replacing and supplementing the desulfurization slurry is improved; the flue gas after primary dust removal is introduced into the desulfurization slurry filled between the bottom end of the conical pipe 121 and the tower body 11 along with the gas inlet pipeline 2, and the conical end part of the gas inlet pipeline 2 positioned in the tower body 11 is opposite to the blade surface of the rotating turbine 191, namely, the sulfur-containing flue gas directly impacts the blade surface of the rotating turbine 191 to impact and drive the rotating turbine 191 to rotate, and the rotating turbine 191 rotates to stir the desulfurization slurry at the bottom, so that the desulfurization slurry is more fully mixed with the flue gas under the stirring action, and the desulfurization and dust removal efficiency is further improved; the sulfur-containing flue gas continuously flows upwards into the conical pipe 121, meanwhile, the desulfurization slurry in the liquid storage cavity 122 close to the upper part of the conical pipe 121 is sprayed downwards by the sprayer 123 on the outer surface of the side wall of the liquid storage cavity 122, the sprayed desulfurization slurry is in a fog shape, the high-temperature sulfur-containing flue gas and the desulfurization slurry fog are reversely intersected and mixed, the fog-shaped slurry is more fully contacted with the sulfur-containing flue gas in the reverse intersection process, the reaction degree is more thorough, and sulfur components in the sulfur-containing flue gas can be further removed; meanwhile, due to the effects of inertial collision, interception, coagulation and the like between the dust particles and the liquid drops, larger dust particles are captured and fall down by the liquid drops, and the dust content in the sulfur-containing flue gas is further reduced; the desulfurization slurry fog is fully contacted with the flue gas, so that the slurry fog absorbs the heat of the high-temperature flue gas, and the temperature of the flue gas can be effectively reduced; and the first rotating 192 plate in the middle of the conical pipe 121 generates airflow impact towards the bottom end of the conical pipe 121 when rotating, so that the sulfur-containing flue gas rising from the bottom end of the conical pipe 121 is dispersed towards the inner surface of the side wall of the conical pipe 121 under the impact of the airflow, the purification time and the cooling time of the flue gas in the tower are prolonged, and the working efficiency of the invention is further improved; under the action of a second circulating pump 17 arranged at a position, close to the middle part, of the side wall of the tower body 11, cooling liquid in a region, close to the bottom, between the side wall of the tower body 11 and the side wall of the conical pipe 121 is conveyed into the annular cooling tank 16 along a second circulating pipe 18, the cooling liquid flows out of the through groove 161, uniformly flows down along the outer surface of the side wall of the conical pipe 121, and finally returns to the bottom of the side wall of the tower body 11, and circulation of the cooling liquid is formed; the flowing cooling liquid forms a uniform cooling water film on the outer surface of the side wall of the conical tube 121, and absorbs the heat of the high-temperature sulfur-containing flue gas in the conical tube 121 through the side wall of the conical tube 121, so that the cooling effect of the reaction tower 1 on the high-temperature sulfur-containing flue gas is further improved; meanwhile, the rotating shaft 19 rotates to drive the first rotating plate 192 to rotate, and the first rotating plate 192 rotates to stir the sulfur-containing flue gas and the desulfurization slurry fog in the conical tube 121, so that the sulfur-containing flue gas and the desulfurization slurry fog are mixed more fully, and the purification efficiency of sulfur components in the flue gas is further improved; the surface of the first rotating plate 192 is provided with the pressure relief grooves 193 which are uniformly distributed, and the pressure relief grooves 193 are empty through grooves, so that when the first rotating plate rotates, a part of sulfur-containing flue gas and desulfurization slurry mist can pass through the empty pressure relief grooves 193, and the impact and resistance on the surface of the first rotating plate 192 are reduced, thereby preventing the first rotating plate 192 from being damaged due to too large blockage in the rotating process, and further influencing the desulfurization efficiency and the cooling efficiency of the high-temperature sulfur-containing flue gas; meanwhile, under the cooperation of the first circulating pump 14 and the first circulating pipe 15 which are installed on the side wall of the tower body 11 near the middle part, the desulfurization slurry at the bottom of the conical pipe 121 can be conveyed into the liquid storage cavity 122, and is sprayed downwards from the liquid storage cavity 122 through the sprayer 123 and finally returns to the bottom of the conical pipe 121, so that the circulation of the desulfurization slurry is formed, and the utilization efficiency of the desulfurization slurry is effectively improved; the purified flue gas flows upwards to the top of the conical pipe 121, the second rotating plate 194 inside the conical pipe rotates along with the rotating shaft 19, the side wall of the top of the conical pipe 121 is made of aluminum-copper alloy with high heat conduction efficiency, meanwhile, the side wall of the annular cooling tank 16 is tightly contacted with the outer surface of the side wall of the top of the conical pipe 121, the purified flue gas is contacted with the side wall of the top of the conical pipe 121, the heat of the purified flue gas is transferred to the side wall of the annular cooling tank 16 by the side wall of the top of the conical pipe, and the cooling liquid in the annular cooling tank 16 is processed by the heat exchanger 181 and then flows in a circulating manner, namely, the vaporized slurry is fully condensed and liquefied on the inner surface of the side wall of the top of the conical pipe 121, and vaporized slurry components contained in the purified flue gas are further removed; the drainage groove 195 arranged on the second rotating plate 194 can guide the purified flue gas to the inner surface of the side wall of the conical tube 121 in the rotation process, and because the inner surface of the side wall of the top of the conical tube 121 is smaller, the purified flue gas is in more contact with the second rotating plate 194, a part of slurry moisture in the purified flue gas is condensed into liquid drops on the surface of the second rotating plate 194, and at the moment, the condensed liquid drops can be thrown to the inner surface of the side wall of the conical tube 121 through rotation under the action of the drainage groove 195 extending to the edge of the second rotating plate 194; the flue gas after the secondary treatment continuously flows upwards into the discharge pipeline 4, the water baffle plate 41 arranged in the discharge pipeline 4 can be used for separating and absorbing residual slurry water in the purified flue gas again, so that secondary pollution caused by the vaporized slurry component discharged along with the purified flue gas is further prevented, and the finally treated flue gas is discharged out of the reaction tower 1 from the discharge pipeline 4.
The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. The utility model provides a desulfurization reaction tower is sprayed in spraying which characterized in that: the device comprises a reaction tower (1), an air inlet pipeline (2), a dust removal device (3) and a discharge pipeline (4), wherein the reaction tower (1) comprises a tower body (11), a purification device (12) and a tower top (13), and the tower top (13) is arranged at the top of the tower body (11); the dust removal device (3) comprises a cyclone dust collector (31) and a hopper (32), the cyclone dust collector (31) is arranged outside the reaction tower (1), and the hopper (32) is arranged at the position, close to the bottom, of the cyclone dust collector (31); one end of the air inlet pipeline (2) is connected with the cyclone dust collector (31), and the other end of the air inlet pipeline extends into the part, close to the bottom, in the conical pipe (121); the discharge pipeline (4) is arranged in the middle of the upper surface of the tower top (13), and a water baffle (41) is arranged in the discharge pipeline (4); the purification device (12) comprises a conical pipe (121), a liquid storage cavity (122) and a sprayer (123), wherein the conical pipe (121) is installed in the middle of the inner surface of the bottom of the tower body (11), and the bottom of the conical pipe (121) is filled with desulfurization slurry; the liquid storage cavity (122) is arranged on the inner surface of the side wall of the conical pipe (121) close to the top, and the liquid storage cavity (122) is filled with desulfurization slurry; the sprayers (123) are uniformly arranged on the outer surface of the side wall of the liquid storage cavity (122) close to the bottom; the top of the conical pipe (121) is communicated with the bottom end of the discharge pipeline (4); a rotating shaft (19) is arranged in the middle of the bottom of the tower body (11); the rotating shaft (19) is rotatably connected with the bottom of the tower body (11), and a bearing (196) is arranged at the joint of the rotating shaft (19) and the bottom of the tower body (11); a rotating turbine (191) is installed on the rotating shaft (19) at a position close to the bottom, the end part of the air inlet pipeline (2) located inside the tower body (11) is conical, and the end part is opposite to the surface of a blade of the rotating turbine (191); a group of first rotating plates (192) are uniformly arranged at the position, located in the middle of the conical tube (121), of the rotating shaft (19); a first circulating pump (14) is arranged on the outer surface of the side wall of the tower body (11) close to the middle part, and a first circulating pipe (15) is arranged on the first circulating pump (14); one end of the first circulating pipe (15) is introduced into the desulfurization slurry filled at the bottom of the conical pipe (121), and the other end of the first circulating pipe is introduced into one side of the inner surface of the side wall of the liquid storage cavity (122) close to the top; the bottom end of the first circulating pipe (15) is provided with a filter screen (151).
2. The spray desulfurization reaction tower of claim 1, wherein: an annular cooling tank (16) is arranged in the tower body (11) at a position close to the top end, and the bottom of the annular cooling tank (16) is connected with the outer surface of the conical pipe (121); cooling liquid is filled in the annular cooling tank (16), and through grooves (161) are uniformly formed in the joint of the bottom of the annular cooling tank (16) and the outer surface of the conical pipe (121); a second circulating pump (17) is arranged on the outer surface of the side wall of the tower body (11) close to the middle part, and a second circulating pipe (18) is arranged on the second circulating pump (17); one end of the second circulating pipe (18) is introduced into the cooling liquid between the inner surface of the side wall of the tower body (11) and the outer surface of the side wall of the conical pipe (121) close to the bottom, and the other end of the second circulating pipe is introduced into the position of the inner surface of the side wall of the annular cooling tank (16) close to the top; and a heat exchanger (181) is arranged on the second circulating pipe (18) at a position close to the outer surface of the bottom end of the tower body (11).
3. The spray desulfurization reaction tower of claim 2, wherein: each first rotating plate (192) is in an inverted cone shape, and the rotating plates (192) are arranged in an inclined mode.
4. The spray desulfurization reaction tower of claim 3, wherein: and the surface of each first rotating plate (192) is provided with uniformly distributed pressure relief grooves (193).
5. The spray desulfurization reaction tower of claim 4, wherein: the annular cooling tank (16) is arranged at an outlet position close to the top of the conical pipe (121), the side wall of the annular cooling tank (16) is in close contact with the outer surface of the side wall of the top of the conical pipe (121), and the side wall of the conical pipe (121) above the liquid storage cavity (122) is made of aluminum-copper alloy; the top of the rotating shaft (19) extends into the position, close to the top end, of the conical tube (121), and a group of second rotating plates (194) are installed at the position, close to the top end, of the rotating shaft (19).
6. The spray desulfurization reaction tower of claim 5, wherein: and the surface of each second rotating plate (194) is provided with drainage grooves (195) which are uniformly distributed, and the end part of each drainage groove (195) is just opposite to the inner surface of the side wall of the conical pipe (121).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110469048.7A CN113318580A (en) | 2021-04-28 | 2021-04-28 | Spraying and spraying desulfurization reaction tower |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110469048.7A CN113318580A (en) | 2021-04-28 | 2021-04-28 | Spraying and spraying desulfurization reaction tower |
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| CN113318580A true CN113318580A (en) | 2021-08-31 |
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| CN202110469048.7A Pending CN113318580A (en) | 2021-04-28 | 2021-04-28 | Spraying and spraying desulfurization reaction tower |
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