CN103752296A - Device and method for regeneration of powdered activated carbon - Google Patents
Device and method for regeneration of powdered activated carbon Download PDFInfo
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- CN103752296A CN103752296A CN201410028816.5A CN201410028816A CN103752296A CN 103752296 A CN103752296 A CN 103752296A CN 201410028816 A CN201410028816 A CN 201410028816A CN 103752296 A CN103752296 A CN 103752296A
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- activated carbon
- powdered activated
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Abstract
The invention discloses a device and a method for regeneration of powdered activated carbon. The device comprises a furnace body, wherein a retractable furnace door is arranged on the furnace body; an internal hollow hearth is arranged inside the furnace body; insulating layers are arranged at the four walls and the periphery of the top part of the hearth; heating wires are embedded in the insulating layers. The device is characterized by also comprising an exhaust and tail gas combustion treatment system, an intake valve, a bracket structure, more than one drawer-type box body and a gas outlet valve, wherein the bracket structure is fixedly arranged inside the hearth; the drawer-type box body is detachably arranged on the bracket structure; the exhaust and tail gas combustion treatment system is fixedly arranged at the top part of the furnace body; the intake valve is fixedly arranged at the top of the furnace body; the gas outlet valve is fixedly arranged at the bottom of the furnace body. Compared with the prior art, the regeneration treatment efficiency can be greatly improved, energy consumption and time are saved, and the operation is simple and feasible.
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 different kinds of molecules is had to extremely strong adsorption capacity, be a kind of good adsorbent, the application aspect municipal sewage, advanced treatment of industrial waste water and Purification of Polluted Sources of Water is very extensive at present.If be not only a kind of wasting of resources and do not reclaim with the active carbon of crossing, and can cause secondary pollution to environment, therefore, from the angle of economy and environmental protection, to consider, the regeneration of active carbon is significant.
Regeneration method of active carbon mainly contains ultrasonic regeneration method, electrochemical regeneration method, super fluid method of reproduction, solvent regeneration process, wet examination oxidation reclaiming process, hot method of reproduction, bio-regeneration method, the side heating method of reproduction etc. of facing at present.Wherein, with hot method of reproduction best results, almost can decompose all organic matters.There are at present multiple heat renovation process and device both at home and abroad, but still the weak point existing: activation temperature is generally higher than 800 ℃, and energy consumption is higher; Charcoal loss late is larger, between 5% ~ 16%; The tail gas producing 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 applications, thereby ignore the unessential evaluation requirement of some active carbon, increase the operating cost of regenerating active carbon, reduced 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 methods that operation is simple, low, the non-secondary pollution of regeneration energy consumption and performance are carried 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 regenerated carbon complicated operation, energy consumption height, active carbon regenerating unit and the methods of provide that a kind of operation is simple, regeneration energy consumption is low, non-secondary pollution and performance being carried out a large amount of activation.The active carbon of this device and method regeneration 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 fire door that can folding, described body of heater inside is interior casement burner hearth, around the wall of described burner hearth and top, be provided with heat-insulation layer, on described heat-insulation layer, be 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 not only 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 50 mm.
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 guarantee that like this active carbon keeps being heated evenly in whole hot regenerative process, avoids occurring the incomplete possibility of local regeneration, 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 respectively at described intake valve and air outlet valve with the mouth of keeping forging ahead.
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 collection device, gas collector and igniter.
The technical scheme that method of the present invention adopts is: a kind of method that utilization is carried out Powdered Activated Carbon regeneration for the device of Powdered Activated Carbon regeneration, it is characterized in that, and comprise the following steps:
Step 1: the Powdered Activated Carbon of handling after industrial wastewater is filtered, make the moisture content of active carbon below 60%;
Step 2: the active carbon after filtering is dried;
Step 3: dried active carbon is laid in described drawer type box body, is arranged on described supporting structure, heat first, be incubated processing after reaching predetermined temperature; In insulating process, volatile substance is take moisture as main, volatile substance enters condensate line by the wireway of described exhausting exhaust and exhaust combustion treatment system, water vapor condensation in volatile substance is become to liquid, aqueous water flows in liquid water collection device, other uncooled organic gas enter in gas collector along wireway, gas in described gas collector is after certain pressure, force feed is to igniter place, igniter starts igniting simultaneously, organic gas burns herein, has avoided pernicious gas to enter to environment;
Step 4: the active carbon after heating is first heated again, and the volatile substance that this process produces is take organic gas as main, and organic gas is by completely burned in described exhausting exhaust and exhaust combustion treatment system;
Step 5: after active carbon heat has been regenerated, by described gas-recycling plant, in described again body of heater, be filled with nitrogen, in described body of heater, temperature is cooled to 200 ℃ and can opens below described again body of heater again, treat that in described body of heater, temperature is cooled to room temperature, take out active carbon, the active carbon after taking-up gets final product repeated application in the processing of municipal sewage or industrial wastewater.
As preferably, the Powdered Activated Carbon by handling after industrial wastewater described in step 1 filters, employing be plate and frame filter press.
As preferably, the active carbon by after filtering described in step 2 is dried, employing be rotary dryer, be 4h drying time.
As preferably, dried active carbon is laid in described drawer type box body described in step 3, active carbon thickness is 10mm.
As preferably, the predetermined temperature that heating arrives first described in step 3 is 250 ℃, and temperature retention time is 4 h.
As preferably, the active carbon by after heating first described in step 4 heats again, and it is warming up to 600 ℃, and temperature retention time is 4 h.
In sewage disposal process, oligosaprobic sewage employing dosing and advanced oxidization method processing cost are high, operation control requires high, and the physical absorption of employing active carbon, 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 ℃, 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 a performance is carried 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.
The specific embodiment
Following through the present invention is described further with the specific embodiment 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 fire door that can folding, body of heater 5 inside are interior casement burner hearth, around the wall of burner hearth and top, be provided with heat-insulation layer, on heat-insulation layer, be 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 is connected respectively at intake valve 2 and air outlet valve 6 with the mouth of keeping forging ahead, 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 collection device, 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 50 mm, be fixedly mounted in burner hearth, not only one of drawer type box body 4, drawer type box body 4 adopts the stainless steel that heat conductivility is good to be 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 tops, and intake valve 2 is fixedly mounted on body of heater 5 tops, and air outlet valve 6 is fixedly mounted on body of heater 5 bottoms.
Exhausting exhaust in the present embodiment and exhaust combustion treatment system 1, the escaping gas producing for discharging in time body of heater 1, tail end Exhaust Gas direct-fire burning, prevents that some pernicious gas is directly disposed in atmosphere.An intake valve and an air outlet valve are housed on body of heater 1, are 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 that utilization is carried out Powdered Activated Carbon regeneration for the device of Powdered Activated Carbon regeneration, comprises the following steps:
Step 1: employing be plate and frame filter press, the Powdered Activated Carbon of handling after industrial wastewater is filtered, make the moisture content of active carbon below 60%;
Step 2: employing is rotary dryer, is dried the active carbon after filtering, and be 4h drying time;
Step 3: dried active carbon is laid in drawer type box body 4, and active carbon thickness remains 10mm, is arranged on supporting structure 3, heats first, is incubated processing after reaching predetermined temperature, and predetermined temperature is 250 ℃, and temperature retention time is 4 h; In insulating process, volatile substance is take moisture as main, volatile substance enters condensate line by the wireway of exhausting exhaust and exhaust combustion treatment system 1, water vapor condensation in volatile substance is become to liquid, aqueous water flows in liquid water collection device, other uncooled organic gas enter in gas collector along wireway, gas in gas collector is after certain pressure, force feed is to igniter place, igniter starts igniting simultaneously, organic gas burns herein, has avoided pernicious gas to enter to environment;
Step 4: the active carbon after heating is first heated again, be warming up to 600 ℃, temperature retention time is 4 h, and the volatile substance that this process produces is take organic gas as main, and organic gas will be completely burned in exhausting exhaust and exhaust combustion treatment system 1;
Step 5: after active carbon heat has been regenerated, by gas-recycling plant to being filled with nitrogen in body of heater 5 again, the interior temperature of body of heater 5 is cooled to 200 ℃ and can opens below body of heater 5 again again, treat that the interior temperature of body of heater 5 is cooled to room temperature, take out active carbon, the active carbon after taking-up gets final product repeated application in the processing of municipal sewage or industrial wastewater.
The present embodiment is got in the dyeing and printing sewage treatment plant of Zhejiang second pond water outlet between waterwheel and is carried out charcoal treatment, adopts plate and frame filter press to filter active carbon saturated absorption, makes the moisture content of active carbon below 60%.Again active carbon is placed in to rotary dryer, is dried, time 4h.Dried active carbon is placed in to this device, is warming up to 300 ℃, insulation 4 h; Continue to be again warming up to 600 ℃, insulation 4 h.Finally be filled with nitrogen and be cooled to 200 ℃ and open below industrial furnace, be cooled to room temperature, now active carbon completes regeneration.
The present embodiment is still got second pond water outlet between waterwheel in the dyeing and printing sewage treatment plant of Zhejiang, regenerated carbon and new active carbon is carried out to the contrast test of water treatment effect.The results are shown in Table 1:
Table 1 regenerated carbon is processed the Contrast on effect of waste water
As can be seen from the above results, in repetition regeneration test process, even if active carbon is regenerated after 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, can return to the adsorption activity before use, the technical indicator after regenerating active carbon and with the contrast of 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) regenerated carbon is processed after waste water and to be starkly lower than after new charcoal treatment waste water by the time of plate compression by the time of plate compression, has saved the time of activated carbon filtration;
(4) regenerated carbon is compared the clearance of waste water COD and colourity with new active carbon the clearance of waste water COD and colourity: regenerated carbon is the more than 90% of new charcoal treatment effect to COD removal effect, and regenerated carbon is the 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 modifications of doing within the spirit and principles in the present invention, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (15)
1. the device for Powdered Activated Carbon regeneration, comprise body of heater (5), described body of heater (5) is provided with fire door that can folding, described body of heater (5) inside is interior casement burner hearth, around the wall of described burner hearth and top, be provided with heat-insulation layer, on described heat-insulation layer, be all inlaid with heating wire; It is characterized in that: 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.
2. the device for Powdered Activated Carbon regeneration according to claim 1, it is characterized in that: described supporting structure (3) is level supporting structure, be fixedly mounted in described burner hearth, not only one of described drawer type box body (4), is removably mounted in the every one deck in described level supporting structure.
3. the device for Powdered Activated Carbon regeneration 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. the device for Powdered Activated Carbon regeneration according to claim 2, is characterized in that: the spacing of described level supporting structure levels is 50 mm.
5. the device for Powdered Activated Carbon regeneration 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. the device for Powdered Activated Carbon regeneration 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. the device for Powdered Activated Carbon regeneration according to claim 1, it is characterized in that: the described device for Powdered Activated Carbon regeneration is also provided with gas-recycling plant, described gas-recycling plant gas outlet is connected respectively at described intake valve (2) and air outlet valve (6) with the mouth of keeping forging ahead.
8. the device for Powdered Activated Carbon regeneration according to claim 7, is characterized in that: described gas-recycling plant is provided with water condensation pipeline.
9. the device for Powdered Activated Carbon regeneration according to claim 1, is characterized in that: described exhausting exhaust and exhaust combustion treatment system (1) inside are provided with gas-guide pipeline, water condensation pipeline, liquid water collection device, gas collector and igniter.
10. a method of utilizing the device for Powdered Activated Carbon regeneration described in claim 1 to carry out Powdered Activated Carbon regeneration, is characterized in that, comprises the following steps:
Step 1: the Powdered Activated Carbon of handling after industrial wastewater is filtered, make the moisture content of active carbon below 60%;
Step 2: the active carbon after filtering is dried;
Step 3: dried active carbon is laid in described drawer type box body (4), is arranged on described supporting structure (3) upper, heat first, be incubated processing after reaching predetermined temperature; In insulating process, volatile substance is take moisture as main, volatile substance enters condensate line by the wireway of described exhausting exhaust and exhaust combustion treatment system (1), water vapor condensation in volatile substance is become to liquid, aqueous water flows in liquid water collection device, other uncooled organic gas enter in gas collector along wireway, gas in described gas collector is after certain pressure, force feed is to igniter place, igniter starts igniting simultaneously, organic gas burns herein, has avoided pernicious gas to enter to environment;
Step 4: the active carbon after heating is first heated again, and the volatile substance that this process produces is take organic gas as main, and organic gas is by completely burned in described exhausting exhaust and exhaust combustion treatment system (1);
Step 5: after active carbon heat has been regenerated, by described gas-recycling plant, in described again body of heater (5), be filled with nitrogen, the described interior temperature of body of heater (5) is cooled to 200 ℃ and can opens below described again body of heater (5) again, treat that the described interior temperature of body of heater (5) is cooled to room temperature, take out active carbon, the active carbon after taking-up gets final product repeated application in the processing of municipal sewage or industrial wastewater.
11. devices for Powdered Activated Carbon regeneration according to claim 9, is characterized in that: the Powdered Activated Carbon by handling after industrial wastewater described in step 1 filters, employing be plate and frame filter press.
12. devices for Powdered Activated Carbon regeneration according to claim 9, is characterized in that: the active carbon by after filtering described in step 2 is dried, employing be rotary dryer, be 4h drying time.
13. devices for Powdered Activated Carbon regeneration according to claim 9, is characterized in that: dried active carbon is laid in described drawer type box body (4) described in step 3, active carbon thickness is 10mm.
14. devices for Powdered Activated Carbon regeneration according to claim 9, is characterized in that: the predetermined temperature that heating arrives first described in step 3 is 250 ℃, and temperature retention time is 4 h.
15. devices for Powdered Activated Carbon regeneration according to claim 9, is characterized in that: the active carbon by after heating first described in step 4 heats again, and it is warming up to 600 ℃, and temperature retention time is 4 h.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN109985610A (en) * | 2019-03-20 | 2019-07-09 | 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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| 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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| JPS5286994A (en) * | 1976-01-16 | 1977-07-20 | Japan Organo Co Ltd | Activated carbon regeneration apparatus equipped with inclined plates |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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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 |
| CN109985610A (en) * | 2019-03-20 | 2019-07-09 | 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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| CN103752296B (en) | 2015-09-16 |
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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 |