CN211358331U - Wet desulfurization quenching equipment in hazardous waste incineration treatment system - Google Patents
Wet desulfurization quenching equipment in hazardous waste incineration treatment system Download PDFInfo
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- CN211358331U CN211358331U CN201922256139.3U CN201922256139U CN211358331U CN 211358331 U CN211358331 U CN 211358331U CN 201922256139 U CN201922256139 U CN 201922256139U CN 211358331 U CN211358331 U CN 211358331U
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Abstract
The utility model discloses a wet flue gas desulfurization rapid cooling equipment among hazardous waste incineration processing system, including quench tower body, quench tower cold water tank, join in marriage liquid case, thick liquid pond, desulfurization waste water pipeline, calcium base desulfurizer pipeline, industrial water pipeline and compressed air pipeline, wherein desulfurization waste water in the desulfurization waste water pipeline is the salt-containing waste water that wet deacidification produced among the hazardous waste incineration processing system, desulfurization waste water pipeline and calcium base desulfurizer pipeline all with join in marriage the liquid case and be connected, join in marriage liquid case and thick liquid pond and be connected, the thick liquid pond passes through the pipeline and is connected with the spray pipe of quench tower body, desulfurization waste water pipeline still is connected with the quench tower, and the spray pipe connection of pipeline and quench tower body is passed through to the water tank, effectively reduces the outer row of desulfurization waste water and reduces the consumption of liquid alkali.
Description
Technical Field
The utility model relates to a hazardous waste incineration disposal technical field, more specifically relates to a wet flue gas desulfurization rapid cooling equipment among hazardous waste incineration disposal system.
Background
In recent years, the treatment technology of the hazardous waste rotary kiln is mature day by day, the matched process is complete and perfect, and the treatment process of flue gas quenching, dry deacidification and wet deacidification is adopted in the tail gas treatment of the hazardous waste incinerator by 90% of domestic hazardous waste treatment enterprises. Through the basic process treatment, acid gases such as SO2, HCL and the like in the flue gas are converted into fly ash or wastewater in the form of salt, SO that the flue gas discharged into the atmosphere meets or is lower than the requirement of environmental emission. However, the desulfurization waste water (mainly comprising NaCl, Na2SO3 and Na2CO 3) converted into water still needs to be treated by a large amount of manpower, material resources and treatment facilities. At present, salt and water are separated by adopting triple-effect or double-effect evaporation aiming at most enterprises of the part of desulfurization wastewater, the separated water is continuously recycled to a production device, and the separated solid salt is used as hazardous waste to be buried.
The desulfurization waste water that this processing method produced needs the evaporation treatment equipment of supporting desulfurization waste water, and the treatment cost of follow-up processing waste water is high, and investment cost is high, directly retrieves to quench tower and causes easily that quench tower inner wall is long-pending salt, harden scheduling problem. In addition, as the main salt in the wastewater is sodium salt, water is instantly vaporized and evaporated after the wastewater is sprayed into the quenching tower, and the sodium salt remained in the tower is easy to be bonded and hung on the wall, so that the quenching tower cannot stably run for a long time.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides a wet desulphurization quenching equipment in hazardous waste incineration treatment system, which effectively reduces the external discharge of desulphurization waste water and the consumption of reducing caustic soda.
The utility model discloses the technological effect that will reach is realized through following scheme: the utility model provides a wet flue gas desulfurization rapid cooling equipment among hazardous waste incineration processing system, includes quench tower body, quench water tank, joins in marriage liquid case, thick liquid pond, desulfurization waste water pipeline, calcium base desulfurizer pipeline, industrial water pipeline and compressed air pipeline, wherein the desulfurization waste water in the desulfurization waste water pipeline be the waste water that contains salt that the wet deacidification produced among the hazardous waste incineration processing system, desulfurization waste water pipeline and calcium base desulfurizer pipeline all with join in marriage the liquid case and be connected, join in marriage liquid case and quench water pond and be connected, the thick liquid pond passes through the pipeline and is connected with the spray pipe of quench tower body, desulfurization waste water pipeline still is connected with the quench water tank, and the quench water tank passes through the pipeline and is connected with the spray pipe of quench tower body.
Preferably, the industrial water pipeline is respectively connected with the quenching water tank, the liquid distribution tank and the slurry pool.
Preferably, the compressed air pipeline is connected with a spraying pipeline of a spraying tower.
Preferably, liquid pumps are further connected between the quick cooling water tank and the spraying pipeline, between the liquid distribution tank and the slurry pool, and between the slurry pool and the spraying pipeline.
Preferably, the upper end of the quenching tower body is connected with a spraying pipeline.
Preferably, the upper end of the quenching tower body is a flue gas inlet end, and the flue gas inlet end is connected with a high-temperature flue gas pipeline.
Preferably, the lower extreme of quench tower body is connected with out grey device, it includes ash discharging hopper and ash discharging flood dragon to go out grey device.
Preferably, acid-proof ceramic tiles are laid on the inner side wall of the quenching tower body.
The utility model has the advantages of it is following:
1. the utility model adopts the desulfurization waste water to be recycled into the quench tower body to replace the production water and preliminarily deacidify the flue gas, thereby effectively reducing the discharge of the desulfurization waste water, and simultaneously, the neutralization reaction can be carried out between the solution containing partial Na2CO3 in the desulfurization waste water and the acid gas in the flue gas, thereby reducing the consumption of liquid caustic soda; meanwhile, alkaline calcium-based solution is prepared in the desulfurization wastewater, the alkaline calcium-based solution neutralizes acid gas together with sodium carbonate, sodium-based solution can reduce the blockage, hardening and the like of sodium-based solution on the inner wall of the quench tower under the action of calcium-based solution, most of sodium-based solution can become granular powdery substances and sink to the bottom of the quench tower, and therefore corrosion of a dust remover in a subsequent tail gas treatment system can be obviously reduced after the acid substances are preliminarily removed in the quench tower body;
2. in the deacidification process, alkaline desulfurization wastewater is sprayed into the quenching tower body, water is instantaneously evaporated in the quenching tower body, alkaline substances neutralize acid gas in the quenching tower body, the alkaline substances which do not participate in the reaction continuously enter the dry-method deacidification tower in the tail gas treatment system along with the flue gas, the alkaline substances continuously react with the acid gas in the flue gas in the dry-method deacidification tower, the reaction time of the alkaline substances and the acid gas is prolonged, and the deacidification efficiency is improved.
Drawings
FIG. 1 is a schematic view of the overall structure of a wet desulfurization quenching device in a hazardous waste incineration system according to the present invention;
FIG. 2 is a schematic structural diagram 1 of a quench tower body in a wet desulfurization quenching device in a hazardous waste incineration system according to the present invention;
fig. 3 is a schematic structural diagram 2 of a quench tower body in a wet desulphurization quenching device in a hazardous waste incineration treatment system of the present invention.
Detailed Description
The invention is described in detail below with reference to the drawings, wherein examples of the embodiments are shown in the drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the interconnection of two elements or through the interaction of two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
Referring to fig. 1 to 3, a quenching apparatus for wet desulfurization in a hazardous waste incineration system according to an embodiment of the present invention includes a quenching tower body 100, a quenching water tank 200, a liquid distribution tank 300, a slurry tank 400, a desulfurization waste water pipeline 500, a calcium-based desulfurizing agent pipeline 600, an industrial water pipeline 700, and a compressed air pipeline 800, wherein the desulfurization wastewater in the desulfurization wastewater pipeline 500 is salt-containing wastewater generated by wet deacidification in a hazardous waste incineration treatment system, the desulfurization waste water pipeline 500 and the calcium-based desulfurizer pipeline 600 are both connected with the liquid distribution box 300, the liquid distribution box 300 is connected with a slurry tank 400, the slurry tank 400 is connected with the spray pipeline 110 of the quenching tower body 100 through a pipeline (for simplifying the structure shown in the figure, all the pipelines in FIG. 1 are replaced by solid lines), the desulfurization waste water pipeline 500 is further connected with the rapid cooling water tank 200, and the rapid cooling water tank 200 is connected with the spray pipeline 110 of the rapid cooling tower body 100 through a pipeline. The utility model discloses in form desulfurization waste water solution in the quench water tank 200, form calcium base resistance salt solution in the thick liquid pond 400, calcium base resistance salt solution and calcium base resistance salt solution mix the spray water that forms the quench tower in the spray line 110 entrance of quench tower body 100, effectively reduce desulfurization waste water's outer row and reduce the consumption of caustic soda lye.
Specifically, the utility model discloses in industrial water pipeline 700 is connected with quench water tank 200, distribution box 300 and thick liquid pond 400 respectively, industrial water pipeline 700 is connected mainly used with quench water tank 200 and can adopts industrial water to spray the quench tower when the volume of desulfurization waste water is not enough, industrial water pipeline 700 is connected with distribution box 300 and thick liquid pond 400 respectively and is used for adjusting the concentration of solution in distribution box 300 and the thick liquid pond 400. The desulfurization waste water line 500 may also be connected to the slurry tank 400 for further adjusting the concentration of the calcium-based salt-rejection solution.
The utility model discloses in compressed air pipeline 800 is connected with quench tower body 100's spraying pipeline 110 for carry compressed air to spray pipeline 110 and make and spray the liquid atomizing, improve and spray the effect.
The utility model discloses in quench tower body 100's upper end is connected with spray piping 110, just quench tower body 100's upper end is the flue gas entrance point, the flue gas entrance point is connected with high temperature flue gas pipeline 900. The lower extreme of quench tower body 100 is connected with ash discharging device 120, ash discharging device 120 includes ash discharging hopper 121 and ash discharging flood dragon 122.
As a further improvement, the inside wall of the quench tower body 100 is further paved with acid-resistant tiles 130, and the acid-resistant tiles 130 can reduce the adhesion of the salt and the quench tower.
The utility model discloses a desulfurization waste water retrieval and utilization replaces production water and carry out preliminary deacidification to the flue gas to quench tower body 100 in, effectively reduces desulfurization waste water's outer row, utilizes the acid gas that contains partial Na2CO3 solution in the desulfurization waste water to take place neutralization reaction with the flue gas simultaneously, reduces the consumption of caustic soda. Meanwhile, alkaline calcium-based solution is prepared in the desulfurization wastewater, the alkaline calcium-based solution neutralizes acid gas together with sodium carbonate, and sodium-based solution can reduce the blockage, hardening and the like of sodium-based solution on the inner wall of the quench tower under the action of calcium-based solution, and most of sodium-based solution can be granular powdery substances and sink to the bottom of the quench tower. Thus, after the initial removal of the acidic materials in the quench tower body 100, the corrosion of the dust collector in the subsequent tail gas treatment system is significantly reduced.
In addition, in the deacidification process, alkaline desulfurization wastewater is sprayed into the quenching tower body 100, water is instantly evaporated in the quenching tower body 100, alkaline substances neutralize acid gas in the quenching tower body 100, the alkaline substances which do not participate in the reaction continuously enter the dry-method deacidification tower in the tail gas treatment system along with the flue gas, the alkaline substances continuously react with the acid gas in the flue gas in the dry-method deacidification tower, the reaction time of the alkaline substances and the acid gas is prolonged, and the deacidification efficiency is improved.
The utility model takes 50 tons/day of dangerous waste incineration disposal as an example; by adopting the deacidification cooling technology of reusing the desulfurization wastewater in the wet deacidification tower into the quench tower, the water consumption of the system is reduced by about 70 tons/day, the 33 percent liquid caustic soda consumption is reduced by 3.5 tons/day, and the power consumption is reduced by 20 percent.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the embodiments of the present invention and not for limiting the same, and although the embodiments of the present invention are described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made on the technical solutions of the embodiments of the present invention, and these modifications or equivalent substitutions cannot make the modified technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (8)
1. The utility model provides a wet desulfurization quenching equipment among hazardous waste incineration processing system, a serial communication port, including quench tower body, quench tower cold water tank, join in marriage liquid case, thick liquid pond, desulfurization waste water pipeline, calcium base desulfurizer pipeline, industrial water pipeline and compressed air pipeline, wherein the desulfurization waste water in the desulfurization waste water pipeline is the salt-containing waste water that wet deacidification produced among the hazardous waste incineration processing system, desulfurization waste water pipeline and calcium base desulfurizer pipeline all with join in marriage the liquid case and be connected, join in marriage liquid case and thick liquid pond and be connected, the thick liquid pond passes through the pipeline and is connected with the spray pipe of quench tower body, desulfurization waste water pipeline still with quench tower connected, the spray pipe connection of quench tower body is passed through the pipeline to the water tank.
2. The wet desulfurization quenching apparatus for hazardous waste incineration disposal system according to claim 1, wherein said industrial water line is connected to a quenching water tank, a liquor distribution tank and a slurry tank, respectively.
3. The wet desulfurization quenching apparatus for hazardous waste incineration system according to claim 1, wherein the compressed air line is connected to a spray line of a spray tower.
4. The wet desulfurization quenching apparatus for hazardous waste incineration disposal system according to claim 1, wherein liquid pumps are further connected between the quenching water tank and the spray pipeline, between the liquid distribution tank and the slurry tank, and between the slurry tank and the spray pipeline.
5. The wet desulfurization quenching apparatus for hazardous waste incineration disposal system as set forth in claim 1, wherein a spray line is connected to an upper end of said quenching tower body.
6. The wet desulfurization quenching device for hazardous waste incineration disposal system as claimed in claim 1, wherein the upper end of the quenching tower body is a flue gas inlet end, and the flue gas inlet end is connected with a high temperature flue gas pipeline.
7. The wet desulfurization quenching equipment for hazardous waste incineration disposal system of claim 1, wherein the lower end of the quenching tower body is connected with an ash discharging device, and the ash discharging device comprises an ash discharging hopper and an ash discharging auger.
8. The wet desulfurization quenching apparatus for hazardous waste incineration disposal system as set forth in claim 1, wherein said quenching tower body is further laid with acid-resistant tiles on the inner side wall thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201922256139.3U CN211358331U (en) | 2019-12-16 | 2019-12-16 | Wet desulfurization quenching equipment in hazardous waste incineration treatment system |
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| CN201922256139.3U CN211358331U (en) | 2019-12-16 | 2019-12-16 | Wet desulfurization quenching equipment in hazardous waste incineration treatment system |
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| CN211358331U true CN211358331U (en) | 2020-08-28 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112079451A (en) * | 2020-09-09 | 2020-12-15 | 南京全宇节能技术有限公司 | Anti-deposition agent for salt-containing wastewater back-spraying quenching tower process |
| CN112079453A (en) * | 2020-09-09 | 2020-12-15 | 南京全宇节能技术有限公司 | Polymer salt inhibitor for salt-containing wastewater back-spraying quenching tower process |
-
2019
- 2019-12-16 CN CN201922256139.3U patent/CN211358331U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112079451A (en) * | 2020-09-09 | 2020-12-15 | 南京全宇节能技术有限公司 | Anti-deposition agent for salt-containing wastewater back-spraying quenching tower process |
| CN112079453A (en) * | 2020-09-09 | 2020-12-15 | 南京全宇节能技术有限公司 | Polymer salt inhibitor for salt-containing wastewater back-spraying quenching tower process |
| CN112079453B (en) * | 2020-09-09 | 2021-11-19 | 南京全宇节能技术有限公司 | Polymer salt inhibitor for salt-containing wastewater back-spraying quenching tower process |
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