CN103752296B - A kind of device and method for Powdered Activated Carbon regeneration - Google Patents
A kind of device and method for Powdered Activated Carbon regeneration Download PDFInfo
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- CN103752296B CN103752296B CN201410028816.5A CN201410028816A CN103752296B CN 103752296 B CN103752296 B CN 103752296B CN 201410028816 A CN201410028816 A CN 201410028816A CN 103752296 B CN103752296 B CN 103752296B
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Abstract
The invention discloses a kind of device and method for Powdered Activated Carbon regeneration, device comprises body of heater, and body of heater is provided with can the fire door of folding, and furnace interior is interior casement burner hearth, around the wall and top of burner hearth, be provided with heat-insulation layer, heat-insulation layer is all inlaid with heating wire; It is characterized in that: device also comprises exhausting exhaust and exhaust combustion treatment system, intake valve, supporting structure, drawer type box body and air outlet valve; Supporting structure is fixedly mounted in burner hearth, and drawer type box body is removably mounted on supporting structure; Exhausting exhaust and exhaust combustion treatment system are fixedly mounted on body of heater top, and intake valve is fixedly mounted on body of heater top, and air outlet valve is fixedly mounted on bottom of furnace body.Relatively and prior art, the present invention can improve regeneration treatment effeciency greatly, save energy consumption and time, and operation is simple.
Description
Technical field
The invention belongs to industrial equipment and technology field, relate to a kind of device and method for Powdered Activated Carbon regeneration, be specifically related to a kind of device and method for the treatment of the Powdered Activated Carbon regeneration after industrial wastewater inactivation.
Background technology
Active carbon has highly developed gap structure and objective specific area, and to different kinds of molecules, there is extremely strong adsorption capacity, be a kind of excellent adsorbent, the application at present in municipal sewage, advanced treatment of industrial waste water and Purification of Polluted Sources of Water widely.And if do not carry out recovery be not only a kind of wasting of resources with the active carbon crossed, and can cause secondary pollution to environment, therefore, consider from the angle of economy and environmental protection, the regeneration of active carbon is significant.
Current regeneration method of active carbon mainly contains ultrasonic regeneration method, electrochemical regeneration method, surpasses and face fluid method of reproduction, solvent regeneration process, wet examination oxidation reclaiming process, hot recycling method, bio-regeneration method, side heating method of reproduction etc.Wherein with hot recycling method best results, almost all organic matters can be decomposed.There are multiple heat renovation process and device both at home and abroad at present, but still the weak point existed: activation temperature is generally higher than 800 DEG C, and energy consumption is higher; Charcoal loss late is comparatively large, between 5% ~ 16%; The tail gas produced during regeneration can cause secondary pollution to environment; Overall operation cost is higher, and economic benefit is low; Simultaneously, the machine-made requirement of regeneration of active carbon is activated to the standard of brand-new active carbon completely, seldom there is the regeneration of active carbon only for some or several application, thus ignore the unessential evaluation requirement of some active carbon, add the operating cost of regenerating active carbon, reduce the economic benefits of active carbon practical application.
So, on market in the urgent need to a kind of can be applied in Industrial Wastewater Treatment, possess good cyclicity again, active carbon regenerating unit and the method that operation is simple, regeneration energy consumption is low, non-secondary pollution and performance carry out a large amount of activation.
Summary of the invention
Technical problem to be solved by this invention is for the deficiencies in the prior art, for weak points such as current hot recycling active carbon complicated operation, energy consumption are high, provide that a kind of operation is simple, regeneration energy consumption is low, active carbon regenerating unit and method that non-secondary pollution and performance carry out a large amount of activation.This device and method regeneration active carbon can be good cycle applications again in Industrial Wastewater Treatment.
Of the present inventionly adopted technical scheme is set is: a kind of device for Powdered Activated Carbon regeneration, comprise body of heater, described body of heater is provided with can the fire door of folding, described furnace interior is interior casement burner hearth, around the wall and top of described burner hearth, be provided with heat-insulation layer, described heat-insulation layer is all inlaid with heating wire; It is characterized in that: described device also comprises exhausting exhaust and exhaust combustion treatment system, intake valve, supporting structure, drawer type box body and air outlet valve; Described supporting structure is fixedly mounted in described burner hearth, and described drawer type box body is removably mounted on described supporting structure; Described exhausting exhaust and exhaust combustion treatment system are fixedly mounted on described body of heater top, and described intake valve is fixedly mounted on described body of heater top, and described air outlet valve is fixedly mounted on described bottom of furnace body.
As preferably, described supporting structure is level supporting structure, is fixedly mounted in described burner hearth, and more than one of described drawer type box body, is removably mounted in the every one deck in described level supporting structure.
As preferably, described drawer type box body, towards being outside equipped with handle, is convenient to artificial handling.
As preferably, the spacing of described level supporting structure levels is 50mm.
As preferably, described drawer type box body adopts the good stainless steel of heat conductivility to be made.
As preferably, the floor space of described drawer type box body is 70% of the described burner hearth area of plane, can ensure that active carbon keeps being heated evenly in whole hot recycling process like this, avoid occurring that local regenerates incomplete possibility, and be beneficial to the volatilization of volatile materials, and operation is simple and feasible.
As preferably, the described device for Powdered Activated Carbon regeneration is also provided with gas-recycling plant, and described gas-recycling plant gas outlet is connected with described intake valve and air outlet valve respectively with air inlet.
As preferably, described gas-recycling plant is provided with water condensation pipeline.
As preferably, described exhausting exhaust and exhaust combustion treatment system inside are provided with gas-guide pipeline, water condensation pipeline, liquid water trap, gas collector and igniter.
The technical scheme that method of the present invention adopts is: a kind of method utilizing the device being used for Powdered Activated Carbon regeneration to carry out Powdered Activated Carbon regeneration, is characterized in that, comprise the following steps:
Step 1: filtering processing the Powdered Activated Carbon after industrial wastewater, making the moisture content of active carbon below 60%;
Step 2: the active carbon after filtering is carried out drying;
Step 3: be laid in described drawer type box body by dried active carbon, be arranged on described supporting structure, heat first, carries out isothermal holding after reaching predetermined temperature; In insulating process, volatile substance is based on moisture, volatile substance enters water condensation pipeline by the wireway of the exhaust of described exhausting and exhaust combustion treatment system, water vapor condensation in volatile substance is become liquid, aqueous water flows in liquid water trap, other uncooled organic gas enter in gas collector along wireway, after gas in described gas collector to certain pressure, force feed is to igniter place, igniter starts igniting simultaneously, organic gas burns herein, avoids pernicious gas and enters in environment;
Step 4: the active carbon after heating is first heated again, the volatile substance that this process produces is based on organic gas, and organic gas is by completely burned in the exhaust of described exhausting and exhaust combustion treatment system;
Step 5: after active carbon hot recycling completes, in described body of heater, nitrogen is filled with by described gas-recycling plant, in described body of heater, temperature is cooled to less than 200 DEG C and can opens described body of heater, treat that in described body of heater, temperature is cooled to room temperature, take out active carbon, the active carbon after taking-up can repeated application in the process of municipal sewage or industrial wastewater.
As preferably, filtering processing the Powdered Activated Carbon after industrial wastewater described in step 1, employing be plate and frame filter press.
As preferably, described in step 2, the active carbon after filtering is carried out drying, employing be rotary dryer, drying time is 4h.
As preferably, be laid in by dried active carbon in described drawer type box body described in step 3, active carbon thickness is 10mm.
As preferably, the predetermined temperature heating arrival first described in step 3 is 250 DEG C, and temperature retention time is 4h.
As preferably, again being heated by the active carbon after heating first described in step 4, it is warming up to 600 DEG C, and temperature retention time is 4h.
Due in sewage disposal process, oligosaprobic sewage adopt dosing and advanced oxidization method processing cost high, operation control overflow is high, and adopt active carbon physical absorption, there is higher contaminant removal efficiency and decolorizing efficiency, but adsorb saturated active carbon and adopt conventional regeneration method, need temperature high more than 800 DEG C, 2 days recovery times, exhaust emissions causes secondary pollution to environment, relatively and prior art, the present invention can improve regeneration treatment effeciency greatly, save energy consumption and time, and operation is simple, and performance carries out the activation of large carbon content active.
Accompanying drawing explanation
Fig. 1: the structure drawing of device of the specific embodiment of the invention.
Detailed description of the invention
Following through the present invention is described further with detailed description of the invention by reference to the accompanying drawings.
Ask for an interview Fig. 1, the technical scheme that device of the present invention adopts is: a kind of device for Powdered Activated Carbon regeneration, comprise body of heater 5, body of heater 5 is provided with can the fire door of folding, body of heater 5 inside is interior casement burner hearth, around the wall and top of burner hearth, be provided with heat-insulation layer, heat-insulation layer is all inlaid with heating wire; Device also comprises exhausting exhaust and exhaust combustion treatment system 1, intake valve 2, supporting structure 3, drawer type box body 4 and air outlet valve 6; Device for Powdered Activated Carbon regeneration is also provided with gas-recycling plant, and gas-recycling plant gas outlet and air inlet are connected with intake valve 2 and air outlet valve 6 respectively, and gas-recycling plant is provided with water condensation pipeline; Exhausting exhaust and exhaust combustion treatment system 1 inside are provided with gas-guide pipeline, water condensation pipeline, liquid water trap, gas collector and igniter; Supporting structure 3 is fixedly mounted in burner hearth, supporting structure 3 is level supporting structure, the spacing of level supporting structure levels is 50mm, be fixedly mounted in burner hearth, more than one of drawer type box body 4, the stainless steel that drawer type box body 4 adopts heat conductivility good is made, and the floor space of drawer type box body 4 is 70% of the burner hearth area of plane, is removably mounted in the every one deck in level supporting structure; Drawer type box body 4, towards being outside equipped with handle, is convenient to artificial handling; Exhausting exhaust and exhaust combustion treatment system 1 are fixedly mounted on body of heater 5 top, and intake valve 2 is fixedly mounted on body of heater 5 top, and air outlet valve 6 is fixedly mounted on bottom body of heater 5.
Exhausting exhaust in the present embodiment and exhaust combustion treatment system 1, for discharging the escaping gas produced in body of heater 1 in time, the direct-fire of tail end Exhaust Gas is burnt, and prevents some pernicious gas to be directly disposed in air.Body of heater 1 is equipped with an intake valve and an air outlet valve, is convenient to being filled with and circulating of gas, its outer loop pipeline water condensation.
The technical scheme that method of the present invention adopts is: a kind of method utilizing the device being used for Powdered Activated Carbon regeneration to carry out Powdered Activated Carbon regeneration, comprises the following steps:
Step 1: employing be plate and frame filter press, filtering processing the Powdered Activated Carbon after industrial wastewater, making the moisture content of active carbon below 60%;
Step 2: employing is rotary dryer, the active carbon after filtering is carried out drying, and drying time is 4h;
Step 3: be laid in by dried active carbon in drawer type box body 4, active carbon thickness remains 10mm, is arranged on supporting structure 3, heats first, carries out isothermal holding after reaching predetermined temperature, and predetermined temperature is 250 DEG C, and temperature retention time is 4h; In insulating process, volatile substance is based on moisture, volatile substance is vented by exhausting and the wireway of exhaust combustion treatment system 1 enters water condensation pipeline, water vapor condensation in volatile substance is become liquid, aqueous water flows in liquid water trap, other uncooled organic gas enter in gas collector along wireway, after gas in gas collector to certain pressure, force feed is to igniter place, igniter starts igniting simultaneously, organic gas burns herein, avoids pernicious gas and enters in environment;
Step 4: again heated by the active carbon after heating first, be warming up to 600 DEG C, temperature retention time is 4h, the volatile substance that this process produces is based on organic gas, and organic gas will be completely burned in exhausting exhaust and exhaust combustion treatment system 1;
Step 5: after active carbon hot recycling completes, in body of heater 5, nitrogen is filled with by gas-recycling plant, in body of heater 5, temperature is cooled to less than 200 DEG C and can opens body of heater 5, treat that in body of heater 5, temperature is cooled to room temperature, take out active carbon, the active carbon after taking-up can repeated application in the process of municipal sewage or industrial wastewater.
The present embodiment to be got in the dyeing and printing sewage treatment plant of Zhejiang secondary clarifier effluent between waterwheel and is carried out charcoal treatment, adopts plate and frame filter press to filter active carbon saturated for absorption, makes the moisture content of active carbon below 60%.Again active carbon is placed in rotary dryer, carries out drying, time 4h.Dried active carbon is placed in this device, is warming up to 300 DEG C, insulation 4h; Continue again to be warming up to 600 DEG C, insulation 4h.Finally be filled with nitrogen to be cooled to less than 200 DEG C and to open industrial furnace, be cooled to room temperature, now active carbon complete regeneration.
The present embodiment still to get in the dyeing and printing sewage treatment plant of Zhejiang secondary clarifier effluent between waterwheel, regenerated carbon and new active carbon is carried out the contrast test of water treatment effect.The results are shown in Table 1:
The Contrast on effect of table 1 regenerated carbon process waste water
As can be seen from the above results, in repetition regeneration test process, even if after active carbon regenerates 10 times, it is still fine to the removal of waste water COD and colourity, and almost identical with new charcoal treatment waste water effect.
With the active carbon of invention regeneration, the adsorption activity before use can be returned to, the technical indicator after regenerating active carbon and the contrast with new active carbon result of use:
(1) active carbon loss late is less than 5%;
(2) every gram of charcoal absorption methylene blue number is greater than 105mg, reaches GB/T 13804.2-1999 " Wooden activated carbon for water purification " seconds quality standard;
(3) be starkly lower than the time by plate compression after new charcoal treatment waste water by the time of plate compression after regenerated carbon process waste water, save the time of activated carbon filtration;
(4) regenerated carbon is compared with the clearance of colourity waste water COD with new active carbon with the clearance of colourity waste water COD: regenerated carbon is more than 90% of new charcoal treatment effect to COD removal effect, and regenerated carbon is more than 98% of new charcoal treatment effect to chromaticity removing effect.
These are only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention, therefore, all any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (13)
1. the device utilizing Powdered Activated Carbon to regenerate carries out the method for Powdered Activated Carbon regeneration, the device of described Powdered Activated Carbon regeneration comprises body of heater (5), described body of heater (5) is provided with can the fire door of folding, described body of heater (5) inside is interior casement burner hearth, around the wall and top of described burner hearth, be provided with heat-insulation layer, described heat-insulation layer is all inlaid with heating wire; Described device also comprises exhausting exhaust and exhaust combustion treatment system (1), intake valve (2), supporting structure (3), drawer type box body (4) and air outlet valve (6); Described supporting structure (3) is fixedly mounted in described burner hearth, and described drawer type box body (4) is removably mounted on described supporting structure (3); Described exhausting exhaust and exhaust combustion treatment system (1) are fixedly mounted on described body of heater (5) top, described intake valve (2) is fixedly mounted on described body of heater (5) top, and described air outlet valve (6) is fixedly mounted on described body of heater (5) bottom; Described exhausting exhaust and exhaust combustion treatment system (1) inside are provided with gas-guide pipeline, water condensation pipeline, liquid water trap, gas collector and igniter;
It is characterized in that, comprise the following steps:
Step 1: filtering processing the Powdered Activated Carbon after industrial wastewater, making the moisture content of active carbon below 60%;
Step 2: the active carbon after filtering is carried out drying;
Step 3: be laid in by dried active carbon in described drawer type box body (4), is arranged on described supporting structure (3), heats first, carry out isothermal holding after reaching predetermined temperature; In insulating process, volatile substance is based on moisture, volatile substance enters water condensation pipeline by the wireway of the exhaust of described exhausting and exhaust combustion treatment system (1), water vapor condensation in volatile substance is become liquid, aqueous water flows in liquid water trap, other uncooled organic gas enter in gas collector along wireway, after gas in described gas collector to certain pressure, force feed is to igniter place, igniter starts igniting simultaneously, organic gas burns herein, avoids pernicious gas and enters in environment;
Step 4: the active carbon after heating is first heated again, the volatile substance that this process produces is based on organic gas, and organic gas is by completely burned in the exhaust of described exhausting and exhaust combustion treatment system (1);
Step 5: after active carbon hot recycling completes, in described body of heater (5), nitrogen is filled with by gas-recycling plant, described body of heater (5) interior temperature is cooled to less than 200 DEG C can open described body of heater (5), treat that described body of heater (5) interior temperature is cooled to room temperature, take out active carbon, the active carbon after taking-up can repeated application in the process of municipal sewage or industrial wastewater.
2. method according to claim 1, it is characterized in that: described supporting structure (3) is level supporting structure, be fixedly mounted in described burner hearth, more than one of described drawer type box body (4), is removably mounted in the every one deck in described level supporting structure.
3. method according to claim 1 and 2, is characterized in that: described drawer type box body (4), towards being outside equipped with handle, is convenient to artificial handling.
4. method according to claim 2, is characterized in that: the spacing of described level supporting structure levels is 50 mm.
5. method according to claim 1 and 2, is characterized in that: described drawer type box body (4) adopts the good stainless steel of heat conductivility to be made.
6. method according to claim 5, is characterized in that: the floor space of described drawer type box body (4) is 70% of the described burner hearth area of plane.
7. method according to claim 1, it is characterized in that: the described device for Powdered Activated Carbon regeneration is also provided with gas-recycling plant, and described gas-recycling plant gas outlet and air inlet are connected with described intake valve (2) and air outlet valve (6) respectively.
8. method according to claim 7, is characterized in that: described gas-recycling plant is provided with water condensation pipeline.
9. method according to claim 1, is characterized in that: filtering processing the Powdered Activated Carbon after industrial wastewater described in step 1, employing be plate and frame filter press.
10. method according to claim 1, is characterized in that: described in step 2 by filter after active carbon carry out drying, employing be rotary dryer, drying time is 4h.
11. methods according to claim 1, is characterized in that: being laid in by dried active carbon in described drawer type box body (4) described in step 3, active carbon thickness is 10mm.
12. methods according to claim 1, is characterized in that: the predetermined temperature heating arrival first described in step 3 is 250 DEG C, and temperature retention time is 4 h.
13. methods according to claim 1, is characterized in that: again being heated by the active carbon after heating first described in step 4, it is warming up to 600 DEG C, and temperature retention time is 4 h.
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| CN105664856A (en) * | 2016-04-18 | 2016-06-15 | 苏州舒跃碳吸附剂有限公司 | Environment-friendly active carbon regenerating device |
| CN109569554A (en) * | 2018-12-05 | 2019-04-05 | 珠海力新环保有限公司 | A kind of activated carbon adsorption generating apparatus again |
| CN109985610B (en) * | 2019-03-20 | 2019-11-08 | 中国科学院青岛生物能源与过程研究所 | A kind of active carbon regenerating unit and method based on from maintenance burning |
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| CN2388183Y (en) * | 1999-07-16 | 2000-07-19 | 巩春龙 | Electric heating rotary regeneratory furance |
| CN202558641U (en) * | 2012-03-15 | 2012-11-28 | 项瑞芳 | Activated carbon multilayer flow-through activating oven |
| CN203061189U (en) * | 2012-10-31 | 2013-07-17 | 武汉钢铁(集团)公司 | Heat energy recoverable activated carbon regeneration furnace |
| CN203711049U (en) * | 2014-01-22 | 2014-07-16 | 湖北君集水处理有限公司 | Device for regeneration of powdered activated carbon |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5839771B2 (en) * | 1976-01-16 | 1983-09-01 | オルガノ株式会社 | Activated carbon regeneration device with inclined plate |
| JPH0631163A (en) * | 1992-07-20 | 1994-02-08 | Osaka Gas Eng Kk | Method and device for regeneration of activated carbon and adsorption treating device |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2388183Y (en) * | 1999-07-16 | 2000-07-19 | 巩春龙 | Electric heating rotary regeneratory furance |
| CN202558641U (en) * | 2012-03-15 | 2012-11-28 | 项瑞芳 | Activated carbon multilayer flow-through activating oven |
| CN203061189U (en) * | 2012-10-31 | 2013-07-17 | 武汉钢铁(集团)公司 | Heat energy recoverable activated carbon regeneration furnace |
| CN203711049U (en) * | 2014-01-22 | 2014-07-16 | 湖北君集水处理有限公司 | Device for regeneration of powdered activated carbon |
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Effective date of registration: 20191122 Address after: 312000 No.86, hengsi Branch Road, Sanjie Town, Shengzhou City, Shaoxing City, Zhejiang Province Patentee after: Shengzhou tanding Carbon Technology Co., Ltd Address before: 430079 Wuhan international bio industry base, 566 hi tech Avenue, East Lake Development Zone, Hubei, Wuhan Patentee before: Hubei Junji Water Treatment Co., Ltd. |
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Denomination of invention: Device and method for regenerating powdered activated carbon Effective date of registration: 20220211 Granted publication date: 20150916 Pledgee: Pudong Shanghai Development Bank Limited by Share Ltd. Wuhan branch Pledgor: Junji Environmental Technology Co.,Ltd. Registration number: Y2022420000037 |