CN111620396A - High-purification-degree salt-containing organic wastewater treatment device - Google Patents
High-purification-degree salt-containing organic wastewater treatment device Download PDFInfo
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- CN111620396A CN111620396A CN202010479089.XA CN202010479089A CN111620396A CN 111620396 A CN111620396 A CN 111620396A CN 202010479089 A CN202010479089 A CN 202010479089A CN 111620396 A CN111620396 A CN 111620396A
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/02—Separating dispersed particles from gases, air or vapours by liquid as separating agent by passing the gas or air or vapour over or through a liquid bath
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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
- B01D53/002—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 by condensation
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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
- B01D53/02—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 by adsorption, e.g. preparative gas chromatography
- B01D53/04—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 by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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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
- B01D53/14—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 by absorption
- B01D53/1487—Removing organic compounds
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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
- B01D53/14—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 by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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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
- 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
- B01D53/68—Halogens or halogen compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/106—Silica or silicates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/20—Organic adsorbents
- B01D2253/202—Polymeric adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/20—Halogens or halogen compounds
- B01D2257/204—Inorganic halogen compounds
- B01D2257/2045—Hydrochloric acid
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/124—Water desalination
Abstract
The invention relates to a high-purification-degree salt-containing organic wastewater treatment device, which relates to the technical field of industrial wastewater incineration treatment and aims to solve the problem of low pollutant removal rate of directly introducing flue gas into a concentration chamber; the terminal hollow buffering spherical shell that is equipped with of breather pipe, buffering spherical shell surface equipartition through-hole, breather pipe are equipped with gas outlet one end and insert to buffering spherical shell in. The high-purification-degree salt-containing organic wastewater treatment device is suitable for organic wastewater treatment combining a concentration evaporation desalination means and an incineration means, is low in energy consumption, further improves the removal rate of organic matters by arranging the improved ventilation device in the concentration chamber, and reduces the operation noise of the waste treatment device.
Description
Technical Field
The invention relates to the technical field of industrial wastewater incineration treatment, in particular to a high-purification-degree salt-containing organic wastewater treatment device.
Background
The incineration method is a simple and efficient chemical treatment method. Macromolecular organic matters in the high-concentration organic waste liquid can be oxidized and decomposed at high temperature and converted into micromolecular substances such as carbon dioxide, water, nitric oxide and the like, so that the aim of harmless emission is fulfilled. The common waste water incineration device mainly has three types: liquid jet furnaces, rotary kiln incinerators, and fluidized bed incinerators. The combustion chambers of the incinerators are mostly built by refractory materials, the requirements on the salinity and the pH of the organic wastewater are high, otherwise, eutectic with low melting point is generated in the incineration process, so that coking and slagging of a hearth and acid-base corrosion of the hearth are caused, and the service life of the incinerator is seriously influenced.
In order to solve the problems, the chinese patent application with application publication No. CN106885252A discloses a device and a method for treating high-concentration organic wastewater containing salt, wherein the device for treating high-concentration organic wastewater containing salt comprises a combustion chamber, an evaporator, a gas-liquid separator, a first condenser, an air pump, a discharge pump, a liquid collecting tank, a flue gas pipeline, a concentration chamber, a water tank, a second condenser, a reactor, and a waste liquid pump. High-temperature flue gas generated in the combustion chamber is firstly used for heating salt-containing high-concentration organic wastewater, and a gas-liquid mixture generated by wastewater evaporation enters a separator for separation, so that the effect of desalination treatment is achieved. The separated vapor is condensed in a first condenser, and the condensed liquid is sent to a concentration chamber for concentration. The concentrated waste water is sprayed into a combustion chamber for incineration treatment. The high-temperature flue gas generated by the combustion chamber firstly exchanges heat in the evaporator and then enters the concentration chamber through the flue gas pipeline.
However, in the solution disclosed in the above patent application document, the flue gas duct is L-shaped, and a plurality of exhaust holes are provided on the transverse section of the L-shape, and the outlet of the flue gas duct is below the liquid level. Namely, the high-temperature flue gas is directly introduced into the liquid in the concentration chamber through the exhaust hole. On one hand, the high-temperature flue gas can quickly escape in the concentrated solution in the form of large bubbles and rise above the liquid level, so that the contact time and the contact area of the high-temperature flue gas and the concentrated solution are not increased, and the retention rate of solid suspended matters and organic pollutants in the high-temperature flue gas is reduced; on the other hand, after the organic matters are combusted, besides combustion end products such as carbon dioxide and water, part of small molecular organic pollutants generated by pyrolysis also exist in the combusted waste gas, and the small molecular organic pollutants are easy to volatilize and dissipate, so that the subsequent treatment difficulty is increased. Therefore, under the combined action of the two reasons, the gas exhausted from the concentration chamber still has organic matters with certain concentration, which is not beneficial to the discharge control of organic pollutants, and the purification degree of wastewater treatment needs to be further improved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a high-purification-degree salt-containing organic wastewater treatment device which has the advantages of effectively reducing the content of organic pollutants in high-temperature flue gas and improving the overall purification degree.
The above object of the present invention is achieved by the following technical solutions:
a high-purification-degree salt-containing organic wastewater treatment device comprises a concentration chamber and a flue gas pipeline for guiding high-temperature flue gas from an evaporator to the concentration chamber, wherein a plurality of ventilation devices are arranged in the concentration chamber, each ventilation device comprises a ventilation pipe, one end of each ventilation pipe is communicated with the flue gas pipeline, and the other end of each ventilation pipe is provided with a gas outlet positioned below the liquid level; the terminal hollow buffering spherical shell that is equipped with of breather pipe, the equipartition through-hole on the buffering spherical shell, the breather pipe is equipped with gas outlet one end and inserts to buffering spherical shell in.
By adopting the technical scheme, the high-temperature flue gas which completes heat exchange in the evaporator enters the vent pipe through the flue gas pipeline and then enters the buffering spherical shell from the gas outlet at the tail end of the vent pipe. Through holes are uniformly distributed in the hollow buffering spherical shell, and liquid in the concentration chamber can enter the buffering spherical shell, so that a 'buffering mixed zone' is formed in the buffering spherical shell. In the buffering mixed area, the loss of high temperature flue gas receives the hindrance of buffering spherical shell, high-speed spout into the air current makes the high-speed disturbance of liquid in the buffering mixed area form indiscriminate flow, so greatly increased the degree of contact of high temperature flue gas with concentrated indoor liquid, do benefit to the volatile micromolecular organic matter and dissolve and get rid of, solid-state suspended particulate matter subsides, the while has also improved the cooling efficiency to high temperature flue gas, thereby effectively reduced organic pollutant concentration in the waste gas of deriving from the concentration room, follow-up waste gas purification treatment process pressure has been alleviateed. On the other hand, due to the existence of the buffering spherical shell, the direct escape of high-temperature flue gas is hindered, and the liquid in the buffering spherical shell is disturbed, so that fine bubbles rather than large bubbles are formed more easily, and the removal of pollutants is also promoted. In addition, the impact of liquid flow and air current can be cushioned to spherical buffering spherical shell inner wall, has the effect that reduces the vibration, directly uses the L type flue gas pipeline who opens the exhaust hole among the prior art, more is favorable to the noise reduction.
Furthermore, the buffering spherical shell is detachably connected with the vent pipe.
Because the waste gas containing organic matters is treated, the inner wall of the buffering spherical shell is easy to be stained. The buffering spherical shell which is detachably arranged can be conveniently overhauled/replaced, and the normal operation of the treatment device is favorably maintained.
Furthermore, a section of threaded sleeve is connected to the buffering spherical shell, and the threaded sleeve is in threaded connection with the vent pipe.
Through adopting above-mentioned technical scheme for it is firm to cushion spherical shell connection, is difficult for breaking away from in the use, can give full play to its effect of accelerating pollutant and getting rid of and making an uproar.
Furthermore, a limiting nut and a rubber gasket are arranged on the vent pipe, and the rubber gasket is located between the limiting nut and the threaded sleeve.
Through adopting above-mentioned technical scheme, the screw thread sleeve pipe of screwing makes the rubber packing ring extruded, so after buffering spherical shell installation, the rubber packing ring has the trend of recovering deformation all the time, exerts its axis direction's reaction force to the screw thread sleeve pipe for the screw thread sleeve pipe is difficult not hard up.
Further, the diameter ratio of the diameter of the buffering spherical shell to the diameter of the vent pipe is (2-4): 1.
the diameter of the buffer spherical shell is too small, so that the mixing of high-temperature flue gas and liquid is not facilitated, and when the gas flow is large, part of the flue gas is easy to overflow without being sufficiently mixed; the diameter of the buffering spherical shell is too large, the mixing effect of the flue gas and the liquid becomes poor, and the noise reduction effect of the gas-liquid separator cannot be well exerted. The applicant finds out through repeated experiments that the diameter ratio of the diameter of the buffering spherical shell to the diameter of the vent pipe is (2-4): 1, the cleaning agent has better effects of promoting pollutant removal and reducing noise.
Furthermore, one end of the vent pipe extending into the buffer spherical shell is provided with a conical part, and the air outlets are uniformly distributed on the conical surface of the conical part.
Through adopting above-mentioned technical scheme for the gas that lets in the buffering spherical shell can promote flue gas and liquid mixing efficiency in a plurality of directions homodisperse, and it is good, noise reduction effect good to get rid of the pollutant effect.
Further, the inner surface and/or the outer surface of the buffering spherical shell are/is provided with a flexible adsorption layer, and the flexible adsorption layer comprises the following components in percentage by mass:
87-93wt% of thermoplastic polyurethane elastomer rubber
3-5wt% of tourmaline powder
3-5wt% of activated carbon powder
1-3wt% of silicon dioxide powder.
Through heat exchange in the evaporator, the temperature of high-temperature smoke entering a concentration chamber generally does not exceed 70 ℃ and is within the tolerance temperature range of Thermoplastic polyurethane elastomer (TPU). TPU is used as a main material, and a proper amount of tourmaline powder, activated carbon powder and silicon dioxide powder are added, so that a flexible adsorption layer with good flexibility, high adhesion and certain adsorbability can be formed on the buffer spherical shell. The flexible adsorption layer arranged on the buffering spherical shell mainly has two functions, one of the functions is to absorb the vibration of the buffering spherical shell and further improve the noise reduction effect; on the other hand, partial pollutants are removed in an auxiliary way by means of tourmaline powder and activated carbon powder in the flexible adsorption layer.
Further, including setting up in the mounting bracket of concentrating indoor wall, the breather pipe can be dismantled and connect in the mounting bracket.
By adopting the technical scheme, the vent pipe can be conveniently and stably installed, so that the scheme of the invention is easy to realize.
Further, the mounting bracket includes the mounting panel, the breather pipe is kept away from buffering spherical shell one end and is run through the mounting panel setting and end-to-end connection has fastening nut.
Through adopting above-mentioned technical scheme, make the breather pipe run through the mounting panel earlier during the installation, it can to tighten the fastening nut again, greatly increased the dismouting convenience of breather pipe, do benefit to the maintenance.
Further, mounting panel one end is equipped with the fixed plate of perpendicular to mounting panel, be equipped with the reinforcement swash plate between fixed plate and the mounting panel, the fixed plate passes through bolted connection in the concentrated indoor wall.
Through adopting above-mentioned technical scheme, form triangular supports structure between mounting panel, fixed plate and the reinforcement swash plate, stability is high, and reducible vibration that leads to the fact because of the breather pipe ventilates does benefit to the noise reduction.
In summary, the invention includes at least one of the following beneficial technical effects:
1. according to the invention, the buffer spherical shell is arranged at the end part of the vent pipe, so that when high-temperature flue gas enters the concentration chamber, the high-temperature flue gas is fully mixed with the solution in the buffer spherical shell, the pollutant removal efficiency and the heat exchange efficiency are improved, the treatment pressure of the subsequent waste gas treatment process is reduced, the high-temperature flue gas flow change can be better adapted, and the whole treatment device can stably run;
2. the arrangement of the buffering spherical shell can buffer and absorb impact force of liquid flow and air flow, and meanwhile, the air flow is dispersed to form small air bubbles to escape, so that the noise generated in the treatment process is greatly reduced;
3. in the preferable scheme, a flexible adsorption layer is arranged on the inner side and/or the outer layer of the buffer spherical shell, and the flexible adsorption layer consists of 87-93wt% of thermoplastic polyurethane elastomer rubber, 3-5wt% of tourmaline powder, 3-5wt% of activated carbon powder and 1-3wt% of silicon dioxide powder according to mass percentage, has excellent flexibility and adhesion fastness, and has promotion effects on pollution removal and noise reduction.
Drawings
FIG. 1 is a schematic structural diagram of a high-purification-degree salt-containing organic wastewater treatment device in an embodiment;
FIG. 2 is a sectional view (top view) of a concentrating compartment in the example;
FIG. 3 is a sectional view (front view) of a concentrating compartment in the embodiment;
fig. 4 is a schematic structural view of the aeration device in the embodiment.
In the figure: 1. a combustion chamber; 2. an evaporator; 3. a gas-liquid separator; 4. a first condenser; 5. an air pump; 6. a discharge pump; 7. a liquid collecting tank; 8. a flue gas duct; 9. a concentration chamber; 10. a water tank; 11. a second condenser; 12. a reactor; 13. a waste liquid pump; 14. a breather device; 141. a mounting frame; 1411. mounting a plate; 1412. a fixing plate; 1413. reinforcing the inclined plate; 142. a breather pipe; 1421. a high temperature resistant hose; 1422. an air outlet; 1423. a limit nut 1424 and a rubber washer; 1425. a tapered portion; 1426. tightening the nut; 143. a buffer spherical shell; 1431. a threaded bushing; 1432. and a through hole.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1:
referring to fig. 1, the device for treating high-purification-degree salt-containing organic wastewater disclosed by the invention comprises a combustion chamber 1, an evaporator 2, a gas-liquid separator 3, a first condenser 4, an air pump 5, a discharge pump 6, a liquid collecting tank 7, a flue gas pipeline 8, a concentration chamber 9, a water tank 10, a second condenser 11, a reactor 12 and a waste liquid pump 13. The combustion chamber 1 is connected with the evaporator 2, the evaporator 2 is respectively connected with the gas-liquid separator 3 and the flue gas pipeline 8, and the flue gas pipeline 8 is communicated with the concentration chamber 9; one side of the gas-liquid separator 3 is connected with a liquid collecting tank 7 through a discharge pump 6, and the other side is connected with the first condenser 4; one side of the first condenser 4 is connected with the combustion chamber 1 through an air pump 5, and the other side is connected with a concentration chamber 9; the concentration chamber 9 is respectively connected with a waste liquid pump 13 and a second condenser 11; the waste liquid pump 13 is connected with the combustion chamber 1; the second condenser 11 is connected to the reactor 12 and the water tank 10, respectively.
Referring to fig. 1, salt-containing high-concentration organic wastewater enters an evaporator 2, air and fuel are fully mixed and then sprayed into a combustion chamber 1 to be combusted, and high-temperature flue gas generated by combustion in the combustion chamber 1 is input into the evaporator 2 to exchange heat with the salt-containing high-concentration organic wastewater. The high-concentration organic wastewater containing salt is evaporated in a falling film mode, a gas-liquid mixture generated by evaporation enters the gas-liquid separator 3 for separation, and a concentrated solution after separation is sent into a liquid collecting tank 7 through a discharge pump 6. The process separates salt from the organic wastewater with high salt concentration, and the salt separated from the concentrated solution is collected in a liquid collecting tank 7. The vapor separated from the gas-liquid separator 3 is discharged from the top into the first condenser 4, where organic matter is separated from salts, and exits with the vapor into the first condenser 4. A part of the vapor is condensed in the first condenser 4 and sent to the concentration chamber 9; a part of the uncondensed gas containing volatile organic compounds is sent to the combustion chamber 1 together with air by the air pump 5.
Referring to fig. 2 and 3, the aeration device 14 is provided on each of the four side inner walls of the concentrating compartment 9, and the aeration device 14 includes a mounting bracket 141 and an aeration pipe 142 detachably mounted to the mounting bracket 141. The vent pipe 142 is arranged along the direction vertical to the bottom wall of the concentrating chamber 9, the top end of the vent pipe is communicated with the vent pipe 142 through a high temperature resistant hose 1421, and the bottom end of the vent pipe is detachably provided with a hollow buffer spherical shell 143.
Referring to fig. 3 and 4, the mounting bracket 141 includes a mounting plate 1411 parallel to the bottom wall of the concentrating chamber 9, and a fixing plate 1412 is provided at one end of the mounting plate 1411. The mounting plate 1411 is perpendicular to the fixing plate 1412, and the fixing plate 1412 is fixed to the inner wall of the concentrating chamber 9 by bolts. A reinforcing inclined plate 1413 positioned below the mounting plate 1411 is arranged between the mounting plate 1411 and the fixing plate 1412, and the reinforcing inclined plate 1413 is arranged so that a triangular support structure is formed among the mounting plate 1411, the fixing plate 1412 and the reinforcing inclined plate 1413, and is firm and stable.
Referring to fig. 3 and 4, the breather tube 142 is detachably provided to the mounting plate 1411. The vent pipe 142 is disposed through the mounting plate 1411, and a fastening nut 1426 and a limiting nut 1423 are threadedly connected to the vent pipe 142. A tightening nut 1426 is located above the mounting plate 1411 and a limit nut is located below the mounting plate 1411. The top end of the vent pipe 142 is connected to the flue gas duct 8 through a high temperature resistant hose 1421.
Referring to fig. 4, a hollow conical part 1425 is disposed at a lower end of the vent pipe 142, and air outlets 1422 are uniformly distributed on a conical surface of the conical part 1425. The tapered portion 1425 of the vent pipe 142 extends into the buffering spherical shell 143, and the buffering spherical shell 143 may be made of metal or hard plastic, and in this embodiment, the buffering spherical shell 143 is made of metal. The buffer spherical shell 143 is connected with a section of threaded sleeve 1431, the threaded sleeve 1431 is in threaded connection with the vent pipe 142, and a rubber gasket 1424 is arranged between the threaded sleeve 1431 and the limit nut 1423. When the buffering spherical shell 143 is installed, the threaded sleeve 1431 is screwed to the air pipe 142 until the rubber gasket 1424 abuts against the threaded sleeve.
Referring to fig. 4, through holes 1432 are uniformly distributed on the buffering spherical shell 143, and the ratio of the diameter of the buffering spherical shell 143 to the diameter of the vent pipe 142 is (2-4): 1. the diameter of the buffer spherical shell 143 is too small, which is not beneficial to mixing the high-temperature flue gas and the liquid, and when the gas flow is large, part of the flue gas is easy to overflow without being sufficiently mixed. The diameter of the buffer spherical shell 143 is too large, so that the mixing effect of the flue gas and the liquid is poor, and the noise reduction effect cannot be well exerted. Repeated tests show that: the diameter ratio of the diameter of the buffering spherical shell 143 to the vent pipe 142 is (2-4): 1, it has excellent effects of promoting removal of contaminants and reducing noise. In this embodiment, the diameter ratio of the buffer spherical shell 143 to the vent pipe 142 is 3: 1.
referring to fig. 4, the flue gas is discharged into the buffering spherical shell 143 through the vent pipe 142, the tapered portion 1425 and the air outlet 1422, the flue gas is initially mixed with the liquid in the concentrating chamber 9 (see fig. 3) in the buffering spherical shell 143, the liquid in the buffering spherical shell 143 is disturbed to fully contact with the flue gas, and then the flue gas is dissipated through the through hole 1432 on the surface of the buffering spherical shell 143. Therefore, on one hand, the flue gas can not directly and quickly escape in the concentration chamber 9, the contact time of the flue gas and the liquid in the concentration chamber 9 is increased, the flue gas can only escape in the form of small bubbles, and the heat exchange efficiency and the removal rate of suspended particles and organic pollutants in the flue gas are improved; on the other hand, the sufficient heat exchange is favorable for the rapid cooling of the flue gas, and the lower temperature is favorable for reducing the loss of volatile organic pollutants, thereby improving the purification degree and lightening the pressure of the subsequent process. In addition, the arrangement of the buffering spherical shell 143 can alleviate the impact force of the air flow and the liquid flow, and reduce the noise when the flue gas is introduced into the concentrating chamber 9 through the vent pipe 142.
Referring to fig. 1, the flue gas from the concentrating compartment 9 contains water vapor and CO as the main components2、O2、N2And also small amounts of sulfides, nitrogen oxides and small amounts of organic pollutants. The flue gas from the concentration chamber 9 is introduced into a condenser 11; the water condensed in the condenser 11 flows into the water tank 10. The condensed water collected in the water tank 10 contains organic matter at a small concentration. The flue gas enters the reactor 10 after passing through the condenser 11, undergoes a chemical reaction to remove acidic substances such as sulfur dioxide and hydrogen chloride, and is then discharged from an outlet.
Examples 2 to 4:
examples 2 to 4 are based on example 1 and differ from example 1 only in that: the buffering spherical shell 143 is provided with a flexible adsorption layer. The flexible adsorption layer consists of 87-93wt% of thermoplastic polyurethane elastomer rubber, 3-5wt% of tourmaline powder, 3-5wt% of activated carbon powder and 1-3wt% of silicon dioxide powder. The location and composition of the flexible adsorbent layer in examples 2-4 are shown in table 1,
table 1.
The salt-containing organic wastewater was treated by the apparatus of examples 1 to 4, respectively, and the COD value of the wastewater before treatment and the COD value of the condensed liquid of the tail gas were measured, while the average noise level generated when the treatment apparatus was operated was measured within 1m from the concentrating chamber. The results are reported in table 2 below,
table 2.
As can be seen from the data in table 2: the high-purification-degree salt-containing organic wastewater treatment device can remarkably improve the purification degree of wastewater treatment and greatly reduce the organic matter emission. Taking example 1 as an example, the COD value of the initial sewage is 40000 mg/L, and the single set of treatment device is 50m3The treatment speed per hour is calculated, and the tail gas cooling after the wastewater treatment is reduced every year by operating for 12 hours every day and operating for 20 days every monthTotal COD discharge of condensate =40000 mg/L50 m3The COD (chemical oxygen demand) is reduced by 103680kg compared with the COD reduced by the existing treatment device every year, and the treatment device has remarkable economic benefit and environmental protection value. Meanwhile, when the high-purification-degree salt-containing organic wastewater treatment device disclosed by the invention is in operation, compared with conventional equipment, the noise is reduced by 30.0% -43.3%.
The above-mentioned embodiments are merely illustrative and not restrictive, and those skilled in the art can modify the above-mentioned embodiments as required after reading this specification without any inventive contribution, but only if the claims of the present invention are protected by patent laws.
Claims (10)
1. The utility model provides a high purification degree contains salt organic waste water processing apparatus, includes concentrating chamber (9) and is used for leading out high temperature flue gas from evaporimeter (2) to flue gas pipeline (8) of concentrating chamber (9), its characterized in that: a plurality of ventilation devices (14) are arranged in the concentration chamber (9), each ventilation device (14) comprises a ventilation pipe (142), one end of each ventilation pipe (142) is communicated with the smoke pipeline (8), and the other end of each ventilation pipe (142) is provided with an air outlet (1422) positioned below the liquid level; the tail end of the vent pipe (142) is provided with a hollow buffer spherical shell (143), through holes (1432) are uniformly distributed in the buffer spherical shell (143), and one end of the vent pipe (142) provided with an air outlet (1422) is inserted into the buffer spherical shell (143).
2. The apparatus for treating high-purification-degree salt-containing organic wastewater according to claim 1, wherein: the buffering spherical shell (143) is detachably connected with the vent pipe (142).
3. The apparatus for treating high-purification-degree salt-containing organic wastewater according to claim 2, wherein: the buffering spherical shell (143) is connected with a section of threaded sleeve (1431), and the threaded sleeve (1431) is in threaded connection with the vent pipe (142).
4. The apparatus for treating high-purification-degree salt-containing organic wastewater according to claim 3, wherein: be equipped with stop nut (1423) and rubber packing ring (1424) on breather pipe (142), rubber packing ring (1424) are located between stop nut (1423) and threaded sleeve (1431).
5. The apparatus for treating high-purification-degree salt-containing organic wastewater according to claim 4, wherein: the diameter ratio of the diameter of the buffering spherical shell (143) to the diameter of the vent pipe (142) is (2-4): 1.
6. the apparatus for treating high-purification-degree salt-containing organic wastewater according to any one of claims 1 to 5, wherein: one end of the vent pipe (142) extending into the buffer spherical shell (143) is provided with a conical part (1425), and the air outlets (1422) are uniformly distributed on the conical surface of the conical part (1425).
7. The apparatus for treating high-purification-degree salt-containing organic wastewater according to any one of claims 1 to 5, wherein: the inner surface and/or the outer surface of the buffering spherical shell (143) are/is provided with a flexible adsorption layer, and the flexible adsorption layer comprises the following components in percentage by mass:
87-93wt% of thermoplastic polyurethane elastomer rubber
3-5wt% of tourmaline powder
3-5wt% of activated carbon powder
1-3wt% of silicon dioxide powder.
8. The apparatus for treating high-purification-degree salt-containing organic wastewater according to claim 1, wherein: including setting up in mounting bracket (141) of concentrating room (9) inner wall, breather pipe (142) can dismantle and connect in mounting bracket (141).
9. The apparatus for treating high-purification-degree salt-containing organic wastewater according to claim 8, wherein: the mounting rack (141) comprises a mounting plate (1411), one end, far away from the buffering spherical shell (143), of the vent pipe (142) penetrates through the mounting plate (1411) to be arranged, and the tail end of the vent pipe is connected with a fastening nut (1426).
10. The apparatus for treating high-purification-degree salt-containing organic wastewater according to claim 9, wherein: the concentrating device is characterized in that a fixing plate (1412) perpendicular to the mounting plate (1411) is arranged at one end of the mounting plate (1411), a reinforcing inclined plate (1413) is arranged between the fixing plate (1412) and the mounting plate (1411), and the fixing plate (1412) is connected to the inner wall of the concentrating chamber (9) through bolts.
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Cited By (1)
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| CN114162826A (en) * | 2022-01-17 | 2022-03-11 | 商南金石工贸有限公司 | Process and equipment for producing magnesium fluosilicate by using forsterite tailing |
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