CN203408621U - Acidic flue gas treatment system - Google Patents
Acidic flue gas treatment system Download PDFInfo
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- CN203408621U CN203408621U CN201320398099.6U CN201320398099U CN203408621U CN 203408621 U CN203408621 U CN 203408621U CN 201320398099 U CN201320398099 U CN 201320398099U CN 203408621 U CN203408621 U CN 203408621U
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Abstract
The utility model discloses an acidic flue gas treatment system. The acidic flue gas treatment system comprises a water absorption system and an alkaline liquid absorption system, connected in sequence, wherein a washing system connected with the water absorption system is arranged in front of the water absorption system. The acidic flue gas treatment system provided by the utility model can effectively remove dust in acidic flue gas so as to effectively reduce blockage and wear of equipment caused by the dust; when the acidic flue gas is high-temperature flue gas, the temperature of the flue gas can be obviously reduced, so that damage to the equipment caused by high temperature can be reduced and pollution-free emission of the acidic flue gas can be realized basically.
Description
Technical field
The utility model relates to a kind of acidic flue gas treatment system.
Background technology
Along with environmental protection is more and more paid attention to, in industrial production tail gas, the processing of acidic flue gas has become the focus that people pay close attention to gradually.Acidic flue gas comprises solid dust and sour gas, wherein sour gas such as hydrogen chloride, sulfur dioxide, sulfur trioxide, nitrogen dioxide etc.
At present, the processing of acidic flue gas is limited to the wherein processing of sour gas more, mainly comprises that water absorption method, alkali absorption method or the two combine.Water absorption method is to use a large amount of water to absorb sour gas by absorption tower, the method can reclaim certain density sour byproduct, and technological process is simple, and operating cost is low, but this method often can not absorb sour gas completely, still has part sour gas and is discharged in atmosphere.(described alkali lye is NaOH, Na for example for alkali absorption method
2cO
3and Ca (OH)
2solution etc.) generally by alkali absorption tower, with alkali lye, sour gas is carried out to purified treatment, purification efficiency is high, but the method makes sour gas resource can not be recovered utilization, and need to consume more alkaline industrial chemicals, and processing cost is high.Prior art also has described two kinds of methods is combined, first with water absorption method, sour gas is absorbed, forming sour byproduct utilizes, with alkali absorption method, thoroughly absorb remaining a small amount of sour gas again, can either make at low cost sour byproduct, can absorb more up hill and dale sour gas again, substantially realize the non-pollution discharge of sour gas in acidic flue gas.
Yet, in acidic flue gas except containing sour gas, also contain a large amount of solid dusts, when the method for water absorption method, alkali absorption method or the two combination adopting is at present processed acidic flue gas, a large amount of dust can be present in the acid solution and/or alkali lye of formation after by water and/or alkali lye spray, be deposited on the bottom on water absorption tower and/or alkali absorption tower, easily cause equipment to stop up and wearing and tearing.In addition, the acidic flue gas of discharging from industrial processes not only Dust Capacity is large, and often temperature is higher, easy damage equipment while directly entering water absorption tower and/or alkali absorption tower.
Utility model content
The purpose of this utility model is to provide a kind of acidic flue gas treatment system, for the dust that reduces acidic flue gas, to the obstruction of equipment and wearing and tearing, and substantially realizes the non-pollution discharge of acidic flue gas.
The purpose of this utility model is achieved by the following technical solution.
A treatment system, comprises the water absorption system and the alkali liquor absorption system that connect successively, is provided with the washing system being attached thereto before described water absorption system.Described washing system comprises scrubbing tower, circulating storage tank, washing system acid-proof pump and slag stock tank, the tower reactor of described scrubbing tower is respectively equipped with gas access and water inlet, the tower reactor outlet at bottom of described scrubbing tower is connected with the entrance of described circulating storage tank, the outlet at bottom of described circulating storage tank is connected with the entrance of described slag stock tank by washing system the first pipeline, the side exit of described circulating storage tank is connected with the entrance of described washing system acid-proof pump by washing system the second pipeline, the acidproof delivery side of pump of described washing system is connected with a plurality of mouth sprays that are arranged on described scrubbing tower tower body by washing system the 3rd pipeline, the gas vent of described scrubbing tower tower top is connected with described water absorption system.
Preferably, described washing system also comprises the slag stock pump being arranged between the outlet at bottom of described circulating storage tank and the entrance of described slag stock tank.
Preferably, described water absorption system comprises:
First order absorption tower, intermediate storage tank, the first acid-proof pump and finished pot, the tower reactor on described first order absorption tower is respectively equipped with the gas access for being connected with described scrubbing tower overhead gas outlet, the liquid inlet spraying into for absorption liquid, and the liquid outlet for excess liq is discharged, the liquid outlet of tower reactor and the entrance of described intermediate storage tank on wherein said first order absorption tower are connected, the outlet of described intermediate storage tank is connected with the entrance of described the first acid-proof pump, described the first acidproof delivery side of pump is connected with the top mouth spray on described first order absorption tower by water absorption system the first pipeline, described the first acidproof delivery side of pump is connected with the described liquid inlet on described first order absorption tower by water absorption system the second pipeline, described the first acidproof delivery side of pump is connected with the entrance of described finished pot by water absorption system the 3rd pipeline, the tower top on described first order absorption tower is provided with gas vent,
Absorption tower, the second level and the second acid-proof pump, the tower reactor on absorption tower, the described second level is respectively equipped with the gas access that the gas vent for the tower top with described first order absorption tower is connected, the first liquid entrance spraying into for absorption liquid, second liquid entrance and liquid outlet, the liquid outlet of the tower reactor on absorption tower, the described second level is connected with the entrance of described the second acid-proof pump, described the second acidproof delivery side of pump is connected with the top mouth spray on absorption tower, the described second level by water absorption system the 4th pipeline, described the second acidproof delivery side of pump is connected with the second liquid entrance of absorption tower, described second level tower reactor by water absorption system the 5th pipeline, described the second acidproof delivery side of pump is connected with the entrance of intermediate storage tank by water absorption system the 6th pipeline, the tower top on absorption tower, the described second level is provided with gas vent, with
Third level absorption tower and the 3rd acid-proof pump, the tower reactor on described third level absorption tower is respectively equipped with the gas access being connected for the overhead gas outlet with absorption tower, the described second level, the liquid inlet spraying into for absorption liquid, first liquid outlet and second liquid outlet, described first liquid outlet is connected with the first liquid entrance of absorption tower, described second level tower reactor, described second liquid outlet is connected with the entrance of described the 3rd acid-proof pump, described the 3rd acidproof delivery side of pump is connected with the top mouth spray on described third level absorption tower, the tower top on described third level absorption tower is provided with gas vent.
Preferably, described alkali liquor absorption system comprises caustic wash tower and lye pump, described caustic wash tower bottom is provided with the gas access being connected for the gas vent with described third level absorption tower tower top, the bottom of described caustic wash tower is provided with lye tank (vat), the liquid outlet of described lye tank (vat) side is connected with the entrance of described lye pump, and described alkali lye delivery side of pump is connected with the top mouth spray of described caustic wash tower.
Preferably, described washing system also comprises the washing system cooler being arranged between described washing system acid-proof pump outlet and the mouth spray of described scrubbing tower tower body.
Preferably, described water absorption system also comprises the front cooler of absorption, the first cooler, the second cooler and/or the 3rd cooler, before wherein said absorption, cooler is arranged between the gas vent of described scrubbing tower tower top and the gas access of described first order absorption tower tower reactor, described the first cooler is arranged between described the first acid-proof pump and the top mouth spray on described first order absorption tower, described the second cooler is arranged between described the second acid-proof pump and the top mouth spray on absorption tower, the described second level, described the 3rd cooler is arranged between described the 3rd acid-proof pump and the top mouth spray on described third level absorption tower.
Preferably, between the gas vent of described scrubbing tower tower top and the gas access of described first order absorption tower tower reactor, be also provided with the first blower fan.
Preferably, between the gas vent of described third level absorption tower tower top and the gas access of described caustic wash tower, be provided with the second blower fan.
Preferably, the tower reactor bottom on the tower reactor on described first order absorption tower bottom and absorption tower, the described second level is respectively equipped with slag slurry mouthful, and described slag slurry mouthful is connected with the entrance of described slag stock pump with water absorption system the 8th pipeline by water absorption system the 7th pipeline respectively.
Preferably, the acidproof delivery side of pump of described washing system is connected with the entrance of described intermediate storage tank by washing system the 4th pipeline.
Preferably, the outlet of the liquid upper of described slag stock tank is connected with the entrance of described intermediate storage tank.
Preferably, described scrubbing tower is spray column; Described first, second, and third absorption tower is packed tower, and form of bio-carrier is that beam type injecting type supports, and the liquid distribution trough in tower is gravity tank type liquid distributor.
Preferably, gas flowmeter and pressure gauge are equipped with in the overhead gas exit on scrubbing tower, first order absorption tower, absorption tower, the second level and third level absorption tower; The middle part on scrubbing tower, first order absorption tower, absorption tower, the second level and third level absorption tower is provided with thermometer.
Preferably, described acidic flue gas treatment system realizes all control by Distributed Control System (DCS).
Only comprise that with existing water absorption system or alkali liquor absorption system or the acidic flue gas treatment system that the two combines compare, acidic flue gas treatment system of the present utility model is also provided with and is positioned at water absorption system washing system before, can effectively remove the dust containing in acidic flue gas, avoid dust to the obstruction of equipment and wearing and tearing; In addition, when acidic flue gas is high-temperature flue gas, also can significantly reduce its temperature, thereby reduce dust and the infringement of high temperature to water absorption system and alkali liquor absorption system, substantially realize the non-pollution discharge of acidic flue gas.
Accompanying drawing explanation
Fig. 1 shows according to the schematic diagram of a kind of embodiment of acidic flue gas treatment system of the present utility model.
The specific embodiment
The high-temp chlorination hydrogen flue gas producing with crystal aluminum chloride calcining below be treated to example, the acidic flue gas treatment system according to one of embodiment of the present utility model is specifically described, but therefore the utility model is not subject to any restriction.Only otherwise depart from the scope of design of the present utility model and restriction, the utility model can have other distortion.
In the present embodiment, the temperature of the hydrogen chloride flue gas producing in crystal aluminum chloride calcination process is at 180～220 ℃, dust concentration≤50mg/Nm
3, flow≤7000Nm
3/ h, pressure-3000～5000Pa, hydrogen chloride content 14.1%.
Acidic flue gas treatment system of the present utility model, comprises the washing system, water absorption system and the alkali liquor absorption system that connect successively.
As shown in Figure 1, washing system comprises scrubbing tower 1101, circulating storage tank 2101, washing system acid-proof pump 3101, washing system heat exchanger 4101, slag stock pump 3102 and slag stock tank 2102.
First high-temperature acidic flue gas enters washing system, from the gas access of the tower reactor of scrubbing tower 1101, enter the tower reactor of scrubbing tower 1101, fresh water (FW) sprays in scrubbing tower 1101 tower reactors from the water inlet of the relative side in gas access of the tower reactor with scrubbing tower 1101, and high-temp chlorination hydrogen flue gas is sprayed.The wetted rear sedimentation of part dust, the water-soluble formation watery hydrochloric acid of partial oxidation hydrogen, and remaining dust and hydrogen chloride gas are in the interior rising of scrubbing tower 1101.The dust of sedimentation and watery hydrochloric acid are mixed to form acid slag slurries, by the tower reactor outlet at bottom of scrubbing tower 1101, are entered in circulating storage tank 2101, carry out sedimentation, obtain the slag slurry of lower floor and the hydrochloric acid clear liquid on upper strata.Wherein slag slurry is deposited on the bottom of circulating storage tank 2101, when reaching a certain amount of, through the slag slurry mouthful of circulating storage tank 2101 bottoms, through washing system the first pipeline 5101, by slag stock pump 3102, is discharged in slag stock tank 2102; The hydrochloric acid clear liquid on upper strata is sent into acid-proof pump 3101 through washing system the second pipeline 5102, through washing system the 3rd pipeline 5103, sending into washing system cooler 4101 more further lowers the temperature, then through being arranged at a plurality of mouth sprays of scrubbing tower 1101 tower bodies, spray in scrubbing tower 1101, to not sprayed by dust and the unabsorbed hydrogen chloride gas of the wetting sedimentation of fresh water (FW) in scrubbing tower 1101.
By the processing of above-mentioned washing system, the even most dust of major part in acidic flue gas are removed, the dustiness of the gas of discharging from the gas vent of scrubbing tower 1101 tower tops is lower, can not cause serious harm to the equipment of follow-up water absorption system and/or alkali liquor absorption system.For the acidic flue gas of high temperature, described washing system also plays certain cooling effect, thereby reduces the infringement of high temperature to water absorption system and/or alkali liquor absorption system.
It will be understood by those skilled in the art that when the acidic flue gas that enter scrubbing tower 1101 is not high-temperature acidic flue gas, also washing system cooler 4101 can be set.
Circulating storage tank 2101 can be common acid solution storage tank.Preferably, in described circulating storage tank 2101, be also provided with mixer.More preferably, the middle part of described circulating storage tank 2101 is provided with liquid level gauge.Described mixer is optionally intermittently used, and when needs deposit slag slurry, closes described mixer, makes fully deposition of slag slurry, and enters in slag stock tank 2102; While needing, for example, when depositing slag not easy-to-use pump being got too much, open described mixer.
In one embodiment, circulating storage tank 2101 has enough large capacity.In another embodiment, washing system acid-proof pump 3101 is connected with other container by washing system the 4th pipeline 5104, when the liquid in circulating storage tank 2101 reaches certain liquid level or reaches finite concentration, a part of liquid in circulating storage tank 2101 is squeezed into other container by washing system the 4th pipeline 5104 and is preserved.
Scrubbing tower 1101 preferably adopts spray column, so that dust wetting sedimentation effectively in tower can be played cooling effect simultaneously.More preferably, in scrubbing tower 1101 tower bodies, be provided with thermometer, temperature in the tower showing by thermometer, regulates flow velocity and/or the temperature of cooling medium in the inflow of scrubbing tower 1101 tower reactors and cooler as required.
High-temp chlorination hydrogen flue gas is through washing and the cooling of washing system, and most of dust is removed.Dust content≤5mg/Nm
3, temperature is down to 50～70 ℃.
The hydrogen chloride flue gas of being discharged by the gas vent at scrubbing tower 1101 tops enters water absorption system.
Water absorption system comprises:
First order absorption tower 1201, intermediate storage tank 2201, the first acid-proof pump 3201, the first cooler 4201 and finished pot 2202;
Absorption tower, the second level 1202, the second acid-proof pump 3202 and the second cooler 4202; And
Third level absorption tower 1203, the 3rd acid-proof pump 3203 and the 3rd cooler 4203;
Wherein between the gas vent of scrubbing tower 1101 tower tops and the gas access of first order absorption tower 1201 tower reactors, be also provided with and absorb front cooler 4200.
First the hydrogen chloride flue gas of discharging from the gas vent at scrubbing tower 1101 tops enters and absorb, cooler 4200 is further lowered the temperature, at the flue gas of hydrogen chloride described in the utility model, after cooling, form gas part and liquid part, wherein liquid enters in the tower reactor on first order absorption tower 1201 under potential difference effect, gas part enters in first order absorption tower 1201 from the gas access of first order absorption tower 1201 tower reactors through the first blower fan 6201, after the spray-absorption of absorption liquid, unabsorbed gases part is discharged from the gas vent at 1201 tops, first order absorption tower, through the gas access of absorption tower, the second level 1202 tower reactors, enter in absorption tower, the second level 1202, after the spray-absorption of absorption liquid, unabsorbed gases part is discharged from the gas vent at 1202 tops, absorption tower, the second level, gas part is now due to washing and front two-stage absorption tower 1201 through scrubbing tower 1101, 1202 absorption, become the hydrogen chloride gas that does not substantially contain dust, this hydrogen chloride gas enters in third level absorption tower 1203 from the gas access of third level absorption tower 1203 tower reactors, again after absorption liquid spray, unabsorbed hydrogen chloride gas is discharged from the gas vent at 1203 tops, third level absorption tower, the concentration of hydrogen chloride gas is now very little, then entering alkali liquor absorption system is thoroughly absorbed.
In water absorption system, first fresh water (FW) enters in third level absorption tower 1203 from the liquid inlet of third level absorption tower 1203 tower reactors, to entering the hydrogen chloride gas of the tower reactor on third level absorption tower 1203, tentatively absorb, form watery hydrochloric acid, described watery hydrochloric acid is squeezed into the 3rd cooler 4203 through the second liquid outlet of third level absorption tower 1203 tower reactors by the 3rd acid-proof pump 3203 and is carried out cooling, then from the top mouth spray on third level absorption tower 1203, get back in third level absorption tower 1203, in order to circularly absorbing hydrogen chloride gas.Owing to passing through the abundant absorption on two- stage absorption tower 1201,1202, the amount of hydrogen chloride gas that enters third level absorption tower 1203 is less, thereby the dilute hydrochloric acid solution concentration forming after water absorbs is lower.Described dilute hydrochloric acid solution is entered in the tower reactor on absorption tower, the second level 1202 through the first liquid entrance of the tower reactor on absorption tower, the second level 1202 by the first liquid outlet in the tower reactor on third level absorption tower 1203, to entering the hydrogen chloride gas of the tower reactor on absorption tower, the second level 1202, tentatively absorb, the hydrochloric acid solution forming is squeezed into the second cooler 4202 by the second acid-proof pump 3202 again and is carried out cooling, then by the top mouth spray on absorption tower, the second level 1202, got back in absorption tower, the second level 1202, in order to circularly absorbing hydrogen chloride gas, form hydrochloric acid solution.When the hydrochloric acid solution in 1202 tower reactors of absorption tower, the second level reaches a certain amount of, described hydrochloric acid solution is squeezed in intermediate storage tank 2201 by water absorption system the 6th pipeline 5206 by the second acid-proof pump 3202; Hydrochloric acid in intermediate storage tank 2201 is squeezed into the first cooler 4201 by the first acid-proof pump 3201 through water absorption system the first pipeline 5201 and is carried out cooling, then by the top mouth spray on first order absorption tower 1201, got back in first order absorption tower 1201, circularly absorbing hydrogen chloride gas, the hydrochloric acid solution of formation enters in intermediate storage tank 2201 through the tower reactor on first order absorption tower 1201 again.By acid-proof pump 3201, by water absorption system the second pipeline 5202, the second liquid entrance through first order absorption tower 1201 tower reactors returns in the tower reactor on first order absorption tower 1201 hydrochloric acid solution in intermediate storage tank 2201; Along with three grades of absorption towers continue absorbing hydrogen chloride gas, the hydrochloric acid solution obtaining enters in intermediate storage tank 2201, and the hydrochloric acid solution in the circulating storage tank 2101 of washing system is reaching certain liquid level or is reaching finite concentration, while preferably reaching 26～31%, by washing system the 4th pipeline 5104, also squeeze in intermediate storage tank 2201, in intermediate storage tank 2201, the concentration of hydrochloric acid increases gradually, when in intermediate storage tank 2201, concentration of hydrochloric acid reaches 26～31%, by acid-proof pump 3201, by water absorption system the 3rd pipeline 5203, squeezed in finished pot 2202.
Preferably, intermediate storage tank 2201 middle parts are provided with liquid level gauge, and the pipeline between intermediate storage tank 2201 and finished pot 2202 is provided with acidometer.
By the pipeline designs of above-mentioned fresh water (FW), in every first grade absorption tower, absorbent and sour gas all keep higher concentration gradient, thereby absorption rate is large, effective.
In water absorption system, the tower reactor bottom on first order absorption tower 1201 and the tower reactor bottom on absorption tower, the second level 1201 are respectively equipped with slag slurry mouthful, and by water absorption system the 7th pipeline 5207 and water absorption system the 8th pipeline 5208, through slag stock pump 3102, squeeze in slag stock tank 2102 respectively.Slag slurry carries out sedimentation in slag stock tank 2102, and wherein solid slag slurry is as waste disposal, and supernatant liquor enters intermediate storage tank 2201.
According to the temperature of pending acidic flue gas, cooler before described absorption, the first cooler, the second cooler and the 3rd cooler can be optionally set,, the first two previous such as selecting only to arrange or first three cooler.For the processing of non high temperature acidic flue gas, cooler can be set.
Three grades of absorption tower systems in the utility model, have been used.It will be understood by those skilled in the art that according to the amount of sour gas in the acidic flue gas of actual treatment, can only adopt one-level or two-stage absorption tower system, also can adopt more multistage absorption Tower System.
In water absorption system, the kind on absorption tower can be selected the absorption tower of this area routine as required, is preferably packed tower.Form of bio-carrier is preferably beam type injecting type and supports, and has so not only been conducive to the uniform distribution of gas but also has avoided liquid to assemble in gripper shoe; Liquid distribution trough is preferably gravity tank type liquid distributor, and it is even that such distributor has initial distribution, and not susceptible to plugging feature, can process the liquid containing solids, and free cross-section is large, and adaptability is good, and treating capacity is large.More preferably, packed tower middle part is also provided with thermometer and liquid level gauge, thereby is convenient to regulate absorption liquid flow.
Alkali liquor absorption system comprises the second blower fan 6301, caustic wash tower 1301 and lye pump 3301, the gas vent at 1203 tops, third level absorption tower is connected with the gas access of caustic wash tower 1301 bottoms by the second blower fan 6301, the bottom of caustic wash tower 1301 is provided with lye tank (vat), and the liquid outlet of caustic wash tower 1301 tower reactor sides is connected with the top mouth spray of caustic wash tower 1301 by lye pump 3301.
The hydrogen chloride gas of discharging from the gas vent at 1203 tops, third level absorption tower of water absorption system enters the bottom of caustic wash tower 1301 by the second blower fan 6301, the top mouth spray that alkali lye in the lye tank (vat) of caustic wash tower 1301 is sent into caustic wash tower 1301 by lye pump 3301 sprays, circularly absorbing hydrogen chloride gas, the gas of finally being discharged by caustic wash tower 1301 tops does not contain dust and sour gas substantially, thereby substantially realizes non-pollution discharge.
Alkali liquor absorption system S300 also can select not arrange the second blower fan 6301.
Preferably, in acidic flue gas treatment system of the present utility model, gas flowmeter and pressure gauge are equipped with in the overhead gas exit on scrubbing tower, first order absorption tower, absorption tower, the second level and third level absorption tower.The middle part on scrubbing tower, first order absorption tower, absorption tower, the second level and third level absorption tower is provided with thermometer.Described acidic flue gas treatment system realizes all control by Distributed Control System (DCS).
It will be appreciated by those skilled in the art that, acidic flue gas treatment system of the present utility model can be used for processing the multiple acidic flue gas producing in industrial processes, described acidic flue gas comprises solid dust and sour gas, described sour gas is such as being sulfur dioxide, sulfur trioxide, nitrogen dioxide, or its any two or more mixture.
Acidic flue gas treatment system of the present utility model, can effectively remove the dust and the sour gas that in acidic flue gas, contain, effectively avoids dust to the obstruction of equipment and wearing and tearing; When acidic flue gas is high-temperature flue gas, also can significantly reduce its temperature, thereby reduce the infringement of high temperature to water absorption system and alkali liquor absorption system, substantially realize the non-pollution discharge of acidic flue gas.
Claims (10)
1. an acidic flue gas treatment system, comprises the water absorption system and the alkali liquor absorption system that connect successively, it is characterized in that, is provided with the washing system being attached thereto before described water absorption system, described washing system comprises scrubbing tower, circulating storage tank, washing system acid-proof pump and slag stock tank, the tower reactor of described scrubbing tower is respectively equipped with gas access and water inlet, the tower reactor outlet at bottom of described scrubbing tower is connected with the entrance of described circulating storage tank, the outlet at bottom of described circulating storage tank is connected with the entrance of described slag stock tank by washing system the first pipeline, the side exit of described circulating storage tank is connected with the entrance of described washing system acid-proof pump by washing system the second pipeline, the acidproof delivery side of pump of described washing system is connected with a plurality of mouth sprays that are arranged on described scrubbing tower tower body by washing system the 3rd pipeline, the gas vent of described scrubbing tower tower top is connected with described water absorption system.
2. acidic flue gas treatment system according to claim 1, is characterized in that, described washing system also comprises the slag stock pump being arranged between the outlet at bottom of described circulating storage tank and the entrance of described slag stock tank.
3. acidic flue gas treatment system according to claim 2, is characterized in that, described water absorption system comprises:
First order absorption tower, intermediate storage tank, the first acid-proof pump and finished pot, the tower reactor on described first order absorption tower is respectively equipped with the gas access for being connected with described scrubbing tower overhead gas outlet, the liquid inlet spraying into for absorption liquid, and the liquid outlet for excess liq is discharged, the liquid outlet of tower reactor and the entrance of described intermediate storage tank on wherein said first order absorption tower are connected, the outlet of described intermediate storage tank is connected with the entrance of described the first acid-proof pump, described the first acidproof delivery side of pump is connected with the top mouth spray on described first order absorption tower by water absorption system the first pipeline, described the first acidproof delivery side of pump is connected with the described liquid inlet on described first order absorption tower by water absorption system the second pipeline, described the first acidproof delivery side of pump is connected with the entrance of described finished pot by water absorption system the 3rd pipeline, the tower top on described first order absorption tower is provided with gas vent,
Absorption tower, the second level and the second acid-proof pump, the tower reactor on absorption tower, the described second level is respectively equipped with the gas access that the gas vent for the tower top with described first order absorption tower is connected, the first liquid entrance spraying into for absorption liquid, second liquid entrance and liquid outlet, the liquid outlet of the tower reactor on absorption tower, the described second level is connected with the entrance of described the second acid-proof pump, described the second acidproof delivery side of pump is connected with the top mouth spray on absorption tower, the described second level by water absorption system the 4th pipeline, described the second acidproof delivery side of pump is connected with the second liquid entrance of absorption tower, described second level tower reactor by water absorption system the 5th pipeline, described the second acidproof delivery side of pump is connected with the entrance of intermediate storage tank by water absorption system the 6th pipeline, the tower top on absorption tower, the described second level is provided with gas vent, with
Third level absorption tower and the 3rd acid-proof pump, the tower reactor on described third level absorption tower is respectively equipped with the gas access being connected for the overhead gas outlet with absorption tower, the described second level, the liquid inlet spraying into for absorption liquid, first liquid outlet and second liquid outlet, described first liquid outlet is connected with the first liquid entrance of absorption tower, described second level tower reactor, described second liquid outlet is connected with the entrance of described the 3rd acid-proof pump, described the 3rd acidproof delivery side of pump is connected with the top mouth spray on described third level absorption tower, the tower top on described third level absorption tower is provided with gas vent,
Described alkali liquor absorption system comprises caustic wash tower and lye pump, described caustic wash tower bottom is provided with the gas access being connected for the gas vent with described third level absorption tower tower top, the bottom of described caustic wash tower is provided with lye tank (vat), the liquid outlet of described lye tank (vat) side is connected with the entrance of described lye pump, and described alkali lye delivery side of pump is connected with the top mouth spray of described caustic wash tower.
4. acidic flue gas treatment system according to claim 3, it is characterized in that, described washing system also comprises the washing system cooler being arranged between described washing system acid-proof pump outlet and the mouth spray of described scrubbing tower tower body, described water absorption system also comprises the front cooler of absorption, the first cooler, the second cooler and/or the 3rd cooler, before wherein said absorption, cooler is arranged between the gas vent of described scrubbing tower tower top and the gas access of described first order absorption tower tower reactor, described the first cooler is arranged between described the first acid-proof pump and the top mouth spray on described first order absorption tower, described the second cooler is arranged between described the second acid-proof pump and the top mouth spray on absorption tower, the described second level, described the 3rd cooler is arranged between described the 3rd acid-proof pump and the top mouth spray on described third level absorption tower.
5. acidic flue gas treatment system according to claim 4, is characterized in that, between the gas vent of described scrubbing tower tower top and the gas access of described first order absorption tower tower reactor, is provided with the first blower fan; Between the gas vent of described third level absorption tower tower top and the gas access of described caustic wash tower, be provided with the second blower fan.
6. acidic flue gas treatment system according to claim 5, it is characterized in that, the tower reactor bottom on described first order absorption tower and the tower reactor bottom on absorption tower, the described second level are respectively equipped with slag slurry mouthful, and described slag slurry mouthful is connected with the entrance of described slag stock pump with water absorption system the 8th pipeline by water absorption system the 7th pipeline respectively.
7. acidic flue gas treatment system according to claim 6, is characterized in that, the acidproof delivery side of pump of described washing system is connected with the entrance of described intermediate storage tank by washing system the 4th pipeline.
8. acidic flue gas treatment system according to claim 7, is characterized in that, described scrubbing tower is spray column; Described first order absorption tower, absorption tower, the second level and third level absorption tower are packed tower, and form of bio-carrier is that beam type injecting type supports, and the liquid distribution trough in tower is gravity tank type liquid distributor.
9. acidic flue gas treatment system according to claim 8, is characterized in that, gas flowmeter and pressure gauge are equipped with in the overhead gas exit on scrubbing tower, first order absorption tower, absorption tower, the second level and third level absorption tower; The middle part on scrubbing tower, first order absorption tower, absorption tower, the second level and third level absorption tower is provided with thermometer.
10. acidic flue gas treatment system according to claim 9, is characterized in that, described acidic flue gas treatment system realizes all control by Distributed Control System.
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| CN104474849A (en) * | 2014-12-04 | 2015-04-01 | 中国钢研科技集团有限公司 | Acid regeneration acid gas absorption and exhaust emission reduction system and utilization method thereof |
| CN107519755A (en) * | 2017-10-19 | 2017-12-29 | 张家港市艾尔环保工程有限公司 | Multi-functional washing absorption plant |
| CN107961645A (en) * | 2016-10-19 | 2018-04-27 | 中国石油化工股份有限公司 | A kind of processing method of chloride tail gas |
| CN109647058A (en) * | 2017-10-11 | 2019-04-19 | 山东江岳科技开发股份有限公司 | A kind of processing equipment of the baking tail gases of Hcl containing high concentration |
| CN116159410A (en) * | 2022-12-30 | 2023-05-26 | 浙江工程设计有限公司 | Gas-phase white carbon black tail gas treatment device and method |
-
2013
- 2013-07-05 CN CN201320398099.6U patent/CN203408621U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104474849A (en) * | 2014-12-04 | 2015-04-01 | 中国钢研科技集团有限公司 | Acid regeneration acid gas absorption and exhaust emission reduction system and utilization method thereof |
| CN107961645A (en) * | 2016-10-19 | 2018-04-27 | 中国石油化工股份有限公司 | A kind of processing method of chloride tail gas |
| CN109647058A (en) * | 2017-10-11 | 2019-04-19 | 山东江岳科技开发股份有限公司 | A kind of processing equipment of the baking tail gases of Hcl containing high concentration |
| CN107519755A (en) * | 2017-10-19 | 2017-12-29 | 张家港市艾尔环保工程有限公司 | Multi-functional washing absorption plant |
| CN116159410A (en) * | 2022-12-30 | 2023-05-26 | 浙江工程设计有限公司 | Gas-phase white carbon black tail gas treatment device and method |
| CN116159410B (en) * | 2022-12-30 | 2024-04-30 | 浙江工程设计有限公司 | Gas-phase white carbon black tail gas treatment device and method |
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