CN107998839A - A kind of graphite produces high-temperature tail gas processing unit - Google Patents

A kind of graphite produces high-temperature tail gas processing unit Download PDF

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Publication number
CN107998839A
CN107998839A CN201810069158.2A CN201810069158A CN107998839A CN 107998839 A CN107998839 A CN 107998839A CN 201810069158 A CN201810069158 A CN 201810069158A CN 107998839 A CN107998839 A CN 107998839A
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CN
China
Prior art keywords
outlet
sedimentation basin
flotation tank
tail gas
processing unit
Prior art date
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Withdrawn
Application number
CN201810069158.2A
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Chinese (zh)
Inventor
刘念邱
陈越
陈鹏
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Chengdu Button Interactive Technology Co Ltd
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Chengdu Button Interactive Technology Co Ltd
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Priority to CN201810069158.2A priority Critical patent/CN107998839A/en
Publication of CN107998839A publication Critical patent/CN107998839A/en
Withdrawn legal-status Critical Current

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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
    • B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
    • 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
    • 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
    • B01D53/1425—Regeneration of liquid absorbents
    • 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
    • B01D53/185—Liquid distributors
    • 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
    • B01D53/26—Drying gases or vapours
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F9/00—Multistage treatment of water, waste water or sewage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
    • B01D2252/10—Inorganic absorbents
    • B01D2252/103—Water
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • 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
    • C02F1/24—Treatment of water, waste water, or sewage by flotation
    • 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
    • C02F1/40—Devices for separating or removing fatty or oily substances or similar floating material
    • 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
    • C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
    • C02F1/5281—Installations for water purification using chemical agents
    • 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
    • C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
    • C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F2209/00—Controlling or monitoring parameters in water treatment

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Analytical Chemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Hydrology & Water Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Organic Chemistry (AREA)
  • Separation Of Suspended Particles By Flocculating Agents (AREA)

Abstract

The invention discloses a kind of graphite to produce high-temperature tail gas processing unit, air inlet pipe is installed on spray column, water circulation treatment device includes sedimentation basin, flotation tank, level-one recovery pond, clear water reserviors, spray pump and spray tube, the water outlet of spray column is connected with the water inlet end of sedimentation basin, the side of sedimentation basin is provided with the flocculation tank toward sedimentation basin addition flocculant, the first outlet of sedimentation basin is connected with level-one recovery pond, the second outlet of sedimentation basin is connected with flotation tank, the first outlet of flotation tank is connected with level-one recovery pond, the second outlet of flotation tank is connected with clear water reserviors, the water inlet of spray pump is connected with clear water reserviors.The beneficial effects of the invention are as follows：The high temperature sintering furnace exhaust gas processing device can handle the high-temperature tail gas that complicated component is changeable in graphite production process, improve the versatility of the device, from the constraint of raw material, and whole processing procedure, it is physical treatment, and condensed water can recycle, so that the processing unit energy conservation and environmental protection.

Description

A kind of graphite produces high-temperature tail gas processing unit
Technical field
The present invention relates to graphite production technical field, particularly a kind of graphite production high-temperature tail gas processing unit.
Background technology
Needle coke is production high power (HP), the primary raw material of ultra high power (UHP) graphite electrode, divides petroleum needle-shaped Burnt and coal-based needle coke.Since needle coke has good graphitization characteristic, have with HP, UHP graphite electrode of its production excellent Good electrical and thermal conductivity thermal shock resistance and inoxidizability, disclosure satisfy that and high current density is born on large capacity electric arc furnaces, in urgency There are the smeltings such as higher mechanical strength to improve quality requirements under cold urgency Warm status, be the common burnt graphite electrode produced in performance Aspect is incomparable.
With needle coke during graphite is produced, high temperature sintering is an essential important procedure, because needle coke Interior material composition is extremely complex, therefore exhaust gas component after high temperature sintering is complicated, contains substantial amounts of pernicious gas and gaseous Oily mater, such as sulfiding gas, gaseous state pitch, existing treatment process is very long in the installation one of the tail gas outlet of high temperature sintering furnace Pipeline, high-temperature gas is passed through in pipeline, with the transport of pipeline, gaseous material condensation, heap knot is in pipeline, and other things Matter is then arbitrarily discharged, in country under environmental requirement more stringent requirement, this exhaust mode not environmentally will be banned Only, it is therefore desirable to research and develop a kind of processing unit for graphite production high temperature sintering furnace exhaust gas.
The content of the invention
The shortcomings that it is an object of the invention to overcome the prior art, there is provided a kind of energy conservation and environmental protection, treating capacity are big, well arranged A kind of graphite production high-temperature tail gas processing unit.
The purpose of the present invention is achieved through the following technical solutions：A kind of graphite produces high-temperature tail gas processing unit, it is wrapped Spray column, water circulation treatment device and exhaust apparatus are included, air inlet pipe, the water circulation treatment device are installed on the spray column Including sedimentation basin, flotation tank, level-one recovery pond, clear water reserviors, spray pump and spray tube, the water outlet of the spray column sinks with described The water inlet end connection in shallow lake pond, the side of the sedimentation basin is provided with the flocculation tank toward sedimentation basin addition flocculant, described heavy The first outlet in shallow lake pond is connected with the level-one recovery pond, and the second outlet of the sedimentation basin is connected with the flotation tank, described The first outlet of flotation tank is connected with the level-one recovery pond, and the second outlet of the flotation tank is connected with the clear water reserviors, institute The water inlet for stating spray pump is connected with the clear water reserviors, and the outlet of the spray pump by pipeline and is arranged in the spray column Nozzle connection.
The exhaust apparatus includes filter, exhaust fan and the exhaust tube being sequentially communicated, the filter and the spray The air outlet connection of tower, the inner cavity top of the spray column are provided with demister.
Drier is additionally provided with the pipeline that the filter is connected with the spray column.
Partition plate is provided with the sedimentation basin, the sedimentation basin is separated into flocculation zone and oil slick area by the partition plate, described The water outlet of the spray column of flocculation tank is located in flocculation zone, and flocculant is added in the flocculation zone by the flocculation tank, The bottom of the sedimentation basin is provided with residual oil sedimentation mouth, and the side of the settling zone, which is additionally provided with, to be taken away at the residual oil sedimentation mouth The residual oil recovery pump of residual oil.
The top side wall of the sedimentation basin offers an overflow port, and the oil slick of the overflow port outflow enters the level-one In recovery pond.
The side of the flotation tank is provided with molten mechanism of qi, and the outlet of the molten mechanism of qi is uniformly laid on the bottom of the flotation tank Portion, the import of the molten mechanism of qi are connected with the second outlet of the flotation tank.
The first baffle plate, the second baffle plate, the 3rd baffle plate are provided with the flotation tank, second baffle plate is located at Between first baffle plate and the 3rd baffle plate, and the bottom of first baffle plate and the 3rd baffle plate is distinguished Gap is left between the flotation tank bottom, overflow port is offered at the top of the flotation tank（94）, the overflow port（94） Between first baffle plate and the 3rd baffle plate, second baffle plate is installed on the bottom of the flotation tank, And the top of second baffle plate is less than the overflow port（94）.
Water quality testing meter and threeway battery valve, the threeway battery valve are provided with the second outlet pipe of the flotation tank One outlet connected with the clear water reserviors, another outlet of the threeway battery valve is connected with a secondary recovery pond.
Heat exchanger is installed on the pipeline that the spray pump is connected with the nozzle.
PH value is additionally provided with the pipeline that the spray pump is connected with the nozzle and adjusts tank.
The present invention has the following advantages：1st, by spray column, high-temperature tail gas is condensed so that be dissolved in the gaseous state thing of water Matter is dissolved in water, it is impossible to and the gaseous material for being dissolved in water is then condensed, and is finally discharged under the action of water flushing from the bottom of spray column, And water processing unit in proper order is entered, by condensing and dissolving so that the pernicious gas and material in high-temperature tail gas are intercepted In spray column, so that the spray column can handle the high-temperature tail gas of various composition complexity, from spray column top out Gas, further through drier and filter, further by the noxious substance in tail gas, purification, so as to be arranged from exhaust tube The gas gone out is uncontaminated gases；
2nd, by flocculant in sedimentation basin, flocculation tank, so that will be miscellaneous in the condensed oily mater and water in high-temperature tail gas Matter flocculation, be deposited in residual oil sedimentation mouth, is then taken away by residual oil pump, so that by the condensed oily in high-temperature tail gas Impurity in material and water is removed；
3rd, level-one recovery pond, secondary recovery pond and molten mechanism of qi are designed with, by way of bubbling, overflow by the oil slick in water, The residue that density is less than water is discharged into level-one recovery pond or secondary recovery pond, so as to obtain the industrial water for meeting industrial standard.
4th, be provided with that PH adjusts that tank causes condensed water be in weak acid or weak base state, avoids water circulation from repeatedly utilizing, increases The acid-base property of aqueous solution, is additionally provided with heat exchanger so that and the temperature that water circulation solution is entered in spray column is less than 40 DEG C, so that Ensure the condensation effect of aqueous solution, so as to ensure that the long-term of aqueous solution recycles；
5th, the vent gas treatment of whole high temperature sintering furnace, is handled using physical method, reduces the use of chemical substance, so that The progress that the processing mode can be permanently effective is obtained, and has saved vent gas treatment cost.
Brief description of the drawings
Fig. 1 is the structure diagram of the present invention
Fig. 2 is the structure diagram of sedimentation basin
In figure, 1- inlet tubes, 2- spray columns, 3- flocculation tanks, 4- residual oil sedimentation mouth, 5- residual oil recovery pumps, 6- level-one recovery ponds, 7- Sedimentation basin, the molten mechanisms of qi of 8-, 9- pH values adjust tank, 10- flotation tanks, 11- secondary recoveries pond, 12- clear water reserviors, 13- spray pumps, 14- Heat exchanger, 15- driers, 16- filters, 17- exhaust fans, 18- exhaust tubes, 19- nozzles, 20- partition plates, 21- water quality testing meters, 22- three-way magnetic valves, the first baffle plates of 91-, the second baffle plates of 92-, the 3rd baffle plates of 93-, 94- overflow ports.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work Embodiment, belongs to the scope of protection of the invention.
As shown in Figure 1, a kind of graphite production high-temperature tail gas processing unit, it include spray column 2, water circulation treatment device and Exhaust apparatus, is provided with air inlet pipe 1 on spray column 2, the inner cavity top of spray column is provided with demister 24, goes out from high temperature sintering furnace The high-temperature tail gas come enters the bottom of spray column 2 by air inlet pipe 1, then cooling liquid is sprayed by nozzle 19, in this reality Apply in example, the liquid that nozzle 19 sprays is in vaporific, and whole fog-like liquid is full of in the middle part of whole spray column, and high-temperature tail gas enters spray After drenching tower 2, high-temperature tail gas is mobile toward the top of spray column 2, therefore high-temperature tail gas then enters the vaporific condensing zone in spray column 2, Vaporific condensing zone causes the temperature of high-temperature tail gas to reduce, so that gas condenses, because the component in high-temperature tail gas is more multiple It is miscellaneous, mainly have gaseous state pitch, organic salt, an inorganic salts, gaseous state pitch after the condensation of vaporific condensing zone, be condensed into it is as a form of gel, and After organic salt and inorganic salts not soluble in water is then condensed, mixed with pitch as a form of gel, and be dissolved in water organic salt and Inorganic salts are then dissolved in vaporific condensed water, and then pitch as a form of gel is under dissolved with the washing away of organic salt and the condensed water of inorganic salts Water circulation treatment device is flowed into from the bottom of spray column 2, the fluid temperature flowed out from 2 bottom of spray column is at 60 DEG C ~ 80 DEG C.
In the present embodiment, water circulation treatment device include sedimentation basin 7, flotation tank 10, level-one recovery pond 6, clear water reserviors 12, Spray pump 13 and spray tube 19, the water outlet of spray column 2 are connected with the water inlet end of sedimentation basin 7, and the side of sedimentation basin 7 is provided with past Sedimentation basin 7 adds the flocculation tank 3 of flocculant, and flocculant, and the past sedimentation basin 7 that flocculation tank 3 is quantitative for a long time are housed in flocculation tank 3 Middle addition flocculant, the bottom of sedimentation basin 7 are provided with residual oil sedimentation mouth 4, in the present embodiment, partition plate are provided with sedimentation basin 7 20, sedimentation basin 7 is separated into flocculation zone and oil slick area by partition plate 20, and the water outlet of the spray column 2 of flocculation tank 3 is located in flocculation zone, Flocculant is added in flocculation zone by flocculation tank 3, after the waste water of the interior outflow of spray column 2 enters flocculation zone, in flocculation liquid Under reuse, impurity, oily matter in waste water condense into bulk, are then deposited in residual oil sedimentation mouth 4 and form residual oil, settling zone 7 side is additionally provided with the residual oil recovery pump 5 for taking residual oil at residual oil sedimentation mouth 4 away, and residual oil sedimentation is taken in 5 timing of residual oil recovery pump away The residual oil of mouth 4, and residual oil is uniformly processed.
In the present embodiment, the first outlet of sedimentation basin 7 is connected with level-one recovery pond 6, and the top side wall of sedimentation basin 7 opens up There is an overflow port, the oil slick of overflow port outflow is entered in level-one recovery pond 6, i.e., one is offered at the top of sedimentation basin 7 and is lacked Mouthful, the upper surface of liquid has the oil slick lower than water density in sedimentation basin 7, and after liquid full in sedimentation basin 7, oil slick passes through First outlet is flowed into level-one recovery pond 6, and the second outlet of sedimentation basin 7 is connected with flotation tank 10, and second outlet is arranged on heavy The middle part in shallow lake pond 7, the liquid at the middle part of sedimentation basin 7 are entered in flotation tank 10, first outlet and the level-one recovery pond 6 of flotation tank 10 Connection, the second outlet of flotation tank 10 are connected with clear water reserviors 12, and in the present embodiment, the side of flotation tank 10 is provided with molten mechanism of qi 8, the outlet of molten mechanism of qi 8 is uniformly laid on the bottom of flotation tank 10, and the import of molten mechanism of qi 8 connects with the second outlet of flotation tank 10 Logical, molten mechanism of qi 8 make it that bottom has uniform minute bubbles in flotation tank 10, and lower than water density float is can speed up by minute bubbles Oil floats, and finally swims in the upper surface of flotation tank 10, in the present embodiment, be provided with flotation tank 10 first baffle plate 91, Second baffle plate 92, the 3rd baffle plate 93, the second baffle plate 92 is between the first baffle plate 91 and the 3rd baffle plate 93, and Gap is left in the bottom of one baffle plate 91 and the 3rd baffle plate 93 between 10 bottom of flotation tank respectively, and the top of flotation tank 10 is opened Equipped with overflow port 94, for overflow port 94 between the first baffle plate 91 and the 3rd baffle plate 93, the second baffle plate 92 is installed on gas The bottom in floating pond 10, and the top of the second baffle plate 92 is less than overflow port 94, the liquid come out from 7 second outlet of sedimentation basin enters To the first baffling area of flotation tank 10, the second baffling area then is flowed into from 91 bottom of the first baffle plate, by the second baffling area Top flows into from the 3rd baffle plate bottom, is then flowed out again from the second outlet of flotation tank 10, liquid subsequently into the 3rd baffling area Body is by multiple baffling and then along with bubble of the molten mechanism of qi in 10 bottom of flotation tank, so that oil slick all swims in air supporting The top in pond 10, the oil slick for then swimming in the top of flotation tank 10 are entered in level-one recovery pond 6 by overflow port 94, pass through two Secondary overflow oil slick, so that the liquid from the outflow of 10 second outlet of flotation tank meets standards for industrial water usage, further, in gas Be provided with water quality testing meter 21 and threeway battery valve 22 on the second outlet pipe in floating pond 10, an outlet of threeway battery valve 22 with Clear water reserviors 12 connect, and another outlet of threeway battery valve 22 is connected with a secondary recovery pond 11, when water quality testing meter 21 detects The water come out from 10 second outlet of flotation tank cannot reach the requirement of industrial water, then control threeway battery valve 22 to direct water into Water in secondary recovery pond 11 can be extracted into gas by secondary recovery pond 11, in the present embodiment, secondary recovery pond 11 by suction pump In floating pond 10, the oil slick in water is then eliminated again, until reaching standards for industrial water usage, certainly in the present embodiment, two level is returned Receives pond 11 also can as 10 structure of flotation tank, then reconnect a molten mechanism of qi, and the overflow port in the secondary recovery pond 11 with Level-one recovery pond 6 connects, and the clear water output in the secondary recovery pond 11 is connected with clear water reserviors 12.
In the present embodiment, the water inlet of spray pump 13 is connected with clear water reserviors 12, the outlet of spray pump 13 by pipeline with The nozzle 19 being arranged in spray column 2 connects, and further, heat exchanger is provided with the pipeline that spray pump 13 is connected with nozzle 19 14, the temperature of water can be cooled to less than 40 DEG C by heat exchanger, so that the water for entering spray column can play preferably Condensation.
The exhaust gas constituents entered out of inlet tube are complex, wherein being dissolved in the acid of water containing sulfiding gas, chloride etc. Property medium, by being used repeatedly for water, so that the pH value of cooling water gradually reduces, therefore in the present embodiment, is Ensure the pH value of cooling water 6.8 ~ 7.2, pH value adjusting tank 9 is additionally provided with the pipeline that spray pump 13 is connected with nozzle 19.
In the present embodiment, exhaust apparatus includes filter 16, exhaust fan 17 and the exhaust tube 18 being sequentially communicated, filter 16 are connected with the air outlet of spray column 2, and filter 16 is common active carbon filter, and exhaust fan 17 works, by spray column Air extraction, to ensure the pressure balance in spray column 2, the air of extraction is under the action of active carbon filter, further By the particle in air, contaminant filter, discharges standard compliant air, further, in filter finally by exhaust tube 18 Drier 15 is additionally provided with 16 pipelines being connected with spray column 2, drier 15 can blot the moisture in air, so that The air that filter 16 must be entered is dry air, so as to avoid wet air from entering for a long time in filter 16, influences activity The activity of charcoal.
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, It can still modify the technical solution described in foregoing embodiments, or which part technical characteristic is carried out etc. With replacing, within the spirit and principles of the invention, any modification, equivalent replacement, improvement and so on, should be included in this Within the protection domain of invention.

Claims (10)

1. a kind of graphite produces high-temperature tail gas processing unit, it is characterised in that：It includes spray column（2）, water circulation treatment device And exhaust apparatus, the spray column（2）On air inlet pipe is installed（1）, the water circulation treatment device includes sedimentation basin（7）, gas Floating pond（10）, level-one recovery pond（6）, clear water reserviors（12）, spray pump（13）And spray tube（19）, the spray column（2）Water outlet End and the sedimentation basin（7）Water inlet end connection, the sedimentation basin（7）Side be provided with toward the sedimentation basin（7）Addition wadding The flocculation tank of solidifying agent（3）, the sedimentation basin（7）First outlet and the level-one recovery pond（6）Connection, the sedimentation basin（7） Second outlet and the flotation tank（10）Connection, the flotation tank（10）First outlet and the level-one recovery pond（6）Even It is logical, the flotation tank（10）Second outlet and the clear water reserviors（12）Connection, the spray pump（13）Water inlet with it is described Clear water reserviors（12）Connection, the spray pump（13）Outlet by pipeline and being arranged on the spray column（2）Interior nozzle（19） Connection.
A kind of 2. graphite production high-temperature tail gas processing unit according to claim 1, it is characterised in that：The exhaust apparatus Including the filter being sequentially communicated（16）, exhaust fan（17）And exhaust tube（18）, the filter（16）With the spray column（2） Air outlet connection, the spray column（2）Inner cavity top be provided with demister（24）.
A kind of 3. graphite production high-temperature tail gas processing unit according to claim 2, it is characterised in that：The filter （16）With the spray column（2）Drier is additionally provided with the pipeline of connection（15）.
A kind of 4. graphite production high-temperature tail gas processing unit according to claim 3 any one, it is characterised in that：It is described Sedimentation basin（7）Inside it is provided with partition plate（20）, the partition plate（20）By the sedimentation basin（7）It is separated into flocculation zone and oil slick area, institute State flocculation tank（3）The spray column（2）Water outlet be located in flocculation zone, the flocculation tank（3）Flocculant is added to institute State in flocculation zone, the sedimentation basin（7）Bottom be provided with residual oil sedimentation mouth（4）, the settling zone（7）Side be additionally provided with Take the residual oil sedimentation mouth away（4）Locate the residual oil recovery pump of residual oil（5）.
A kind of 5. graphite production high-temperature tail gas processing unit according to claim 4, it is characterised in that：The sedimentation basin （7）Top side wall offer an overflow port, the oil slick of the overflow port outflow enters the level-one recovery pond（6）It is interior.
A kind of 6. graphite production high-temperature tail gas processing unit according to claim 5, it is characterised in that：The flotation tank （10）Side be provided with molten mechanism of qi（8）, the molten mechanism of qi（8）Outlet be uniformly laid on the flotation tank（10）Bottom, The molten mechanism of qi（8）Import and the flotation tank（10）Second outlet connection.
A kind of 7. graphite production high-temperature tail gas processing unit according to claim 1 ~ 6 any one, it is characterised in that：Institute State flotation tank（10）Inside it is provided with the first baffle plate（91）, the second baffle plate（92）, the 3rd baffle plate（93）, second baffling Plate（92）Positioned at first baffle plate（91）With the 3rd baffle plate（93）Between, and first baffle plate（91）And institute State the 3rd baffle plate（93）Bottom respectively with the flotation tank（10）Gap, the flotation tank are left between bottom（10）Top Portion offers overflow port（94）, the overflow port（94）Positioned at first baffle plate（91）With the 3rd baffle plate（93）It Between, second baffle plate（92）Installed in the flotation tank（10）Bottom, and second baffle plate（92）Top it is low In the overflow port（94）.
A kind of 8. graphite production high-temperature tail gas processing unit according to claim 7, it is characterised in that：The flotation tank （10）Second outlet pipe on be provided with water quality testing meter（21）And threeway battery valve（22）, the threeway battery valve（22）'s One outlet and the clear water reserviors（12）Connection, the threeway battery valve（22）Another outlet be connected with a secondary recovery pond （11）.
A kind of 9. graphite production high-temperature tail gas processing unit according to claim 8 any one, it is characterised in that：It is described Spray pump（13）With the nozzle（19）Heat exchanger is installed on the pipeline of connection（14）.
A kind of 10. graphite production high-temperature tail gas processing unit according to claim 9, it is characterised in that：The spray pump （13）With the nozzle（19）PH value is additionally provided with the pipeline of connection and adjusts tank（9）.
CN201810069158.2A 2018-01-24 2018-01-24 A kind of graphite produces high-temperature tail gas processing unit Withdrawn CN107998839A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108483737A (en) * 2018-05-24 2018-09-04 上海遨提新材料技术咨询有限公司 Spray sewage purification system and its purification technique
CN109603376A (en) * 2019-01-31 2019-04-12 青岛伊克斯达智能装备有限公司 A kind of high-temperature oil gas of waste and old rubber thermal cracking and carbon black separation system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108483737A (en) * 2018-05-24 2018-09-04 上海遨提新材料技术咨询有限公司 Spray sewage purification system and its purification technique
CN109603376A (en) * 2019-01-31 2019-04-12 青岛伊克斯达智能装备有限公司 A kind of high-temperature oil gas of waste and old rubber thermal cracking and carbon black separation system

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Application publication date: 20180508