CN111346624A - Active carbon regenerating unit - Google Patents
Active carbon regenerating unit Download PDFInfo
- Publication number
- CN111346624A CN111346624A CN202010214618.3A CN202010214618A CN111346624A CN 111346624 A CN111346624 A CN 111346624A CN 202010214618 A CN202010214618 A CN 202010214618A CN 111346624 A CN111346624 A CN 111346624A
- Authority
- CN
- China
- Prior art keywords
- outlet
- inlet
- flue gas
- activated carbon
- furnace
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3416—Regenerating or reactivating of sorbents or filter aids comprising free carbon, e.g. activated carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/30—Processes for preparing, regenerating, or reactivating
- B01J20/34—Regenerating or reactivating
- B01J20/3483—Regenerating or reactivating by thermal treatment not covered by groups B01J20/3441 - B01J20/3475, e.g. by heating or cooling
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses an active carbon regeneration device, comprising: regenerating a rotary furnace; a screening system; the screening system comprises a scraper conveyer, a first screening hoister, a finished product charging bucket, an impurity remover, a second screening hoister, a roller screening machine, a first cyclone dust collector and a first bag-type dust collector; an exhaust gas purification system; the tail gas purification system comprises a dry deacidification tower, a bag-type dust remover, an alkali liquor spraying tower set, a demister, an activated carbon adsorption box, a flue gas heater and an exhaust chimney. The arrangement of the regeneration rotary furnace in the activated carbon regeneration device realizes the high-efficiency activation and regeneration of the activated carbon; simultaneously this application system has carried out the processing of "SNCR denitration + rapid cooling + dry-type deacidification + sack dust removal + wet-type deacidification + vapor separation + active carbon adsorption processing + flue gas reheat" to the flue gas to can guarantee that the flue gas accords with emission standard, avoid causing environmental pollution.
Description
Technical Field
The invention belongs to the technical field of activated carbon regeneration, and particularly relates to an activated carbon regeneration device.
Background
Activated carbon is widely used as an adsorbent, and the application range of the activated carbon is gradually widened, but the activated carbon is easy to saturate during the use process and loses the adsorption capacity, so that the activated carbon must be frequently replaced to achieve the use effect. The activated carbon is expensive, and the operation cost of enterprises can be increased by replacing the activated carbon every time, so that the aim of recycling the saturated activated carbon must be fulfilled.
At present, the heating regeneration method of heating to a certain high temperature for activation is mainly adopted for the regeneration and recovery of the adsorption capacity of the activated carbon, and the method is almost effective for the decomposition of all organic matters and is widely applied to the industrial production of the activated carbon regeneration. However, the existing heating regeneration method is difficult to treat tail gas generated in the regeneration process of the activated carbon, and easily causes the exhaust gas emission not to reach the standard, thereby causing environmental pollution.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide an activated carbon regeneration device.
In order to achieve the purpose, the invention adopts the following technical scheme:
an activated carbon regeneration device comprising:
regenerating a rotary furnace; the bottom of the regenerative rotary furnace is provided with a supporting base, and the supporting base is provided with a rotating mechanism for controlling the rotation of the furnace body of the regenerative rotary furnace; the feeding end to the discharging end of the regeneration rotary furnace are obliquely arranged from high to low; a first steam pipe which is inserted into the regeneration rotary furnace and used for providing steam is arranged at the feed end of the regeneration rotary furnace; a regenerative furnace burner is arranged on the discharge end of the regenerative rotary furnace; a carbon outlet is formed in the lower part of the discharge end of the rotary regenerative furnace, and the carbon outlet and the cold carbon discharging machine are arranged; the upper part of the furnace body of the regeneration rotary furnace is provided with a flue gas outlet;
a screening system; the screening system comprises a scraper conveyer, and the inlet end of the scraper conveyer is connected with the outlet of the cold carbon discharging machine; the outlet end of the scraper conveyor is connected with the bottom inlet of a first screening hoister, and the top outlet of the first screening hoister is connected with the inlet of a finished product tank; the outlet of the finished product tank is connected with the inlet of the impurity removing machine, and the outlet of the impurity removing machine is connected with the bottom inlet of the second screening hoister; the outlet at the top of the second screening hoister is connected with the inlet of a drum screening machine, and the outlet of the drum screening machine is connected with the inlet of the first cyclone dust collector; the outlet of the first cyclone dust collector is connected with the inlet of the first bag-type dust collector, and the outlet of the first bag-type dust collector is connected with the storage tank;
an exhaust gas purification system; the tail gas purification system comprises a dry deacidification tower, and an inlet of the dry deacidification tower is connected with a flue gas outlet of the regeneration rotary furnace; the outlet of the dry deacidification tower is connected with the inlet of a bag-type dust remover, and the outlet of the bag-type dust remover is connected with the inlet of an alkali liquor spraying tower group; the outlet of the alkali liquor spraying tower group is connected with the inlet of a demister, and the outlet of the demister is connected with the inlet of an activated carbon adsorption tank; the outlet of the activated carbon adsorption box is connected with the inlet of the flue gas heater, and the outlet of the flue gas heater is connected with the exhaust chimney.
Preferably, the furnace body from the feeding end to the discharging end of the regenerative rotary furnace is sequentially provided with a feeding drying section, a roasting section, an activating section and a discharging section; the first steam pipe is inserted into the activation section.
Preferably, the temperature of the feeding and drying section is 25-300 ℃; the temperature of the baking section is 300-750 ℃; the temperature of the activation section is 750-1050 ℃.
Preferably, the rotating mechanism comprises a rotating motor, a rotating gear and a gear ring; the rotating gear is coaxially and fixedly connected with a rotating shaft of the rotating motor; the gear ring is sleeved on the circumferential surface of the regeneration rotary furnace body; the rotating gear is in external meshing connection with the gear ring.
Preferably, the alkali liquor spray tower group comprises a first alkali liquor spray tower, a second alkali liquor spray tower and a third alkali liquor spray tower; the flue gas inlet of the first alkali liquor spray tower is connected with the outlet of the bag-type dust collector, and the flue gas outlet of the first alkali liquor spray tower is connected with the flue gas inlet of the second alkali liquor spray tower; the flue gas outlet of the second alkali liquor spray tower is connected with the flue gas inlet of the third alkali liquor spray tower; and the flue gas outlet of the third alkali liquor spraying tower is connected with the inlet of the demister.
Preferably, a first induced draft fan is arranged between the outlet of the bag-type dust collector and the first alkali liquor spray tower; and a second induced draft fan is arranged between the activated carbon adsorption box and the flue gas heater.
Preferably, a waste heat utilization system is arranged between the regeneration rotary furnace and the tail gas purification system;
the waste heat utilization system comprises a second cyclone dust collector, and an inlet of the second cyclone dust collector is connected with a flue gas outlet of the regeneration rotary furnace; the outlet of the second cyclone dust collector is connected with the inlet of the combustion settling chamber; an outlet of the combustion settling chamber is connected with a flue gas inlet of a waste heat boiler, and a flue gas outlet of the waste heat boiler is connected with an inlet of a quench tower; the outlet of the quenching tower is connected with the inlet of the dry deacidification tower.
Preferably, the waste heat boiler adopts a tube type water-cooled wall steam boiler, and a steam outlet of the waste heat boiler is respectively connected with the first steam tube and the flue gas heater through steam pipelines.
Preferably, the feeding end of the rotary regenerative furnace is provided with a feeding system, the feeding system comprises a dry material bin, the bottom of the dry material bin is of a funnel structure, the bottom of the dry material bin is provided with a dry material screw feeder, and an outlet of the dry material screw feeder is located inside the feeding end of the rotary regenerative furnace.
Preferably, a drying system is arranged at the front end of the feeding system, and the drying system comprises a wet material conveyor for conveying the regenerated material to be activated to a wet material bin; the bottom of wet feed bin sets up wet material screw feeder, the export of wet material screw feeder links to each other with the entry of drying furnace, the export of drying furnace links to each other with the entry in dry feed bin.
The invention has the beneficial effects that:
(1) the arrangement of the regeneration rotary furnace in the activated carbon regeneration device realizes the high-efficiency activation and regeneration of the activated carbon; simultaneously this application device has carried out the processing of "SNCR denitration + rapid cooling + dry-type deacidification + sack dust removal + wet-type deacidification + vapor separation + active carbon adsorption processing + flue gas reheat" to the flue gas to can guarantee to accord with emission standard, avoid causing environmental pollution.
(2) The activated carbon regeneration device screens the regenerated granular activated carbon through the arrangement of the screening system, so that the screened activated carbon with the grain diameter meeting the requirement is subjected to subsequent packaging.
(3) The flue gas in the active carbon regeneration device enters the combustion settling chamber for incineration and then enters the waste heat boiler for full utilization, and the waste heat boiler utilizes the waste heat of the flue gas to provide corresponding steam for the regeneration rotary furnace and the flue gas heater, so that the utilization rate of heat is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic view of the structure of an activated carbon regeneration apparatus according to the present invention;
FIG. 2 is a schematic flow diagram of an activated carbon regeneration apparatus according to the present invention;
wherein:
1-a regenerative rotary furnace, 101-a supporting base, 102-a first steam pipe, 103-a regenerative furnace burner and 104-a cold carbon discharging machine;
2-screening system, 201-scraper conveyor, 202-first screening lifter, 203-finished product tank, 204-impurity remover, 205-second screening lifter, 206-roller screening machine, 207-first cyclone dust collector, 208-first bag-type dust collector;
3-a tail gas purification system, 301-a dry deacidification tower, 302-a bag-type dust remover, 303-a first alkali liquor spray tower, 304-a second alkali liquor spray tower, 305-a third alkali liquor spray tower, 306-a demister, 307-an activated carbon adsorption box, 308-a flue gas heater, 309-an exhaust chimney, 310-a first induced draft fan and 311-a second induced draft fan;
4-a waste heat utilization system, 401-a combustion settling chamber, 402-a waste heat boiler, 403-a quench tower and 404-a second cyclone dust collector;
5-a feeding system, 501-a dry material bin, 502-a dry material screw feeder;
6-drying system, 601-wet material conveyor, 602-wet material bin, 603-wet material screw feeder and 604-drying furnace.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
In the present invention, terms such as "bottom", "top", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only terms of relationships determined for convenience in describing structural relationships of the components or elements of the present invention, and are not intended to refer to any components or elements of the present invention, and should not be construed as limiting the present invention.
In the present invention, terms such as "connected" and "connecting" should be interpreted broadly, and mean either a fixed connection or an integral connection or a detachable connection; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be determined according to specific situations by persons skilled in the relevant scientific or technical field, and are not to be construed as limiting the present invention.
The invention is further illustrated with reference to the following figures and examples.
As shown in fig. 1, an activated carbon regeneration apparatus includes:
a regenerative rotary furnace 1; the bottom of the regenerative rotary furnace 1 is provided with a supporting base 101, and the supporting base 101 is provided with a rotating mechanism for controlling the furnace body of the regenerative rotary furnace 1 to rotate; the feeding end to the discharging end of the regeneration rotary furnace 1 are arranged in an inclined manner from high to low; the feeding end of the rotary regenerative furnace 1 is provided with a first steam pipe 102 which is inserted into the rotary regenerative furnace 1 and used for providing steam; a regenerative furnace burner 103 is arranged on the discharge end of the regenerative rotary furnace 1, and the regenerative furnace burner 103 is used for generating high-temperature flue gas; a carbon outlet is formed in the lower portion of the discharge end of the rotary regenerative furnace 1, the carbon outlet and the cold carbon discharging machine 104 are arranged, activated carbon activated and regenerated by the rotary regenerative furnace 1 enters the cold carbon discharging machine 104 from the carbon outlet, the cold carbon discharging machine 104 uses recycled water as cooling water to flow in a jacket of the carbon discharging machine to take away heat of the activated carbon, the activated carbon is cooled, and the finished product discharge rate of the activated carbon at the carbon outlet reaches 70%; a flue gas outlet is formed in the furnace body of the regeneration rotary furnace 1;
a screening system 2; the screening system 2 comprises a scraper conveyor 201, and the inlet end of the scraper conveyor 201 is connected with the outlet of the cold carbon discharging machine 104; the outlet end of the scraper conveyor 201 is connected with the bottom inlet of a first screening lifter 202, and the top outlet of the first screening lifter 202 is connected with the inlet of a finished product tank 203; the outlet of the finished product tank 203 is connected with the inlet of an impurity remover 204, and the outlet of the impurity remover 204 is connected with the bottom inlet of a second screening lifter 205; the top outlet of the second screening elevator 205 is connected with the inlet of a drum screening machine 206, and the outlet of the drum screening machine 206 is connected with the inlet of a first cyclone dust collector 207; the outlet of the first cyclone dust collector 207 is connected with the inlet of the first bag-type dust collector 208, and the outlet of the first bag-type dust collector 208 is connected with the storage tank; the activated carbon regenerated by the regeneration rotary furnace 1 enters a screening system 2, and the activated carbon particles screened by the screening system 2 and having particle sizes meeting the requirements are stored in a storage tank to wait for subsequent packaging;
an exhaust gas purification system 3; the tail gas purification system 3 comprises a dry deacidification tower 301, and an inlet of the dry deacidification tower 301 is connected with a flue gas outlet of the regeneration rotary furnace 1; the outlet of the dry deacidification tower 301 is connected with the inlet of a bag-type dust remover 302, and the outlet of the bag-type dust remover 302 is connected with the inlet of an alkali liquor spraying tower group; the outlet of the alkali liquor spraying tower group is connected with the inlet of a demister 306, and the outlet of the demister 306 is connected with the inlet of an activated carbon adsorption tank 307; the outlet of the activated carbon adsorption tank 307 is connected with the inlet of the flue gas heater 308, and the outlet of the flue gas heater 308 is connected with the exhaust chimney 309;
flue gas enters from the bottom of a dry type deacidification tower 301 and is sprayed with lime powder in the towerDeacidifying; the lime powder is stored in a lime bin, and is continuously and uniformly mixed with Ca (OH) by a screw feeder and a high-pressure fan2) Spraying into a dry deacidification tower, Ca (OH)2And SO in flue gas2、SO3HCl and HF react to produce CaSO3、CaSO4、CaCl2、CaF2Etc.; at the same time, if there is CO in the flue gas2If present, a part of Ca (OH) is consumed2Formation of CaCO3；
The deacidified flue gas with dust with smaller particle size enters a bag-type dust collector 302, when the flue gas passes through a filter bag from the outside, the dust in the flue gas is intercepted on the outer surface of the filter bag so as to be purified, then enters an upper box body through a venturi tube in the dust collector, and is discharged from an outlet;
the flue gas discharged from the outlet of the bag-type dust collector 302 enters an alkali liquor spraying tower set, and the function of the tower set is to rapidly cool the high-temperature flue gas to the saturation temperature of water in a water spraying mode, and then treat the acid gas by a wet method, so that the treatment effect can be improved, and the treatment cost can be reduced; acid gas in the flue gas is removed by washing, wherein the wastewater from the alkali liquor spray tower enters a washing water tank, and is pumped into a washing tower for recycling after the pH value is adjusted;
the flue gas passing through the alkali liquor spray tower group contains a large amount of water vapor, accumulated water can be generated in a second induced draft fan after passing through the second induced draft fan, white smoke is formed after passing through an exhaust chimney 309, and the serious pollution is caused to the surrounding environment; in order to solve the problem of forming white smoke, a demister 306, an activated carbon adsorption tank 307 and a smoke heater 308 are arranged, the temperature of the deacidified smoke at about 70 ℃ is raised to about 140 ℃, the corrosion of water vapor in the smoke to a second induced draft fan and an exhaust chimney 309 is solved, and the problem that the exhaust chimney 309 emits white smoke is also solved; after the pollutants in the flue gas treated by the tail gas purification system completely reach the emission standard, the pollutants are discharged outside through an exhaust chimney 309.
Preferably, the furnace body from the feeding end to the discharging end of the regenerative rotary furnace 1 sequentially comprises a feeding drying section, a roasting section, an activating section and a discharging section; the first steam pipe 102 is inserted into the activation section.
Preferably, the temperature of the feeding and drying section is 25-300 ℃; the temperature of the baking section is 300-750 ℃; the temperature of the activation section is 750-1050 ℃.
And (2) from the feeding end to the discharging end, allowing the material to enter a 25-300 ℃ feeding drying section from the feeding end to evaporate low-boiling-point organic matters and water adsorbed in the saturated activated carbon, then entering a 300-750 ℃ anoxic drying section to further bake the low-boiling-point substances, then entering an 750-1050 ℃ activation section, and spraying water vapor through a first steam pipe 102 in the area to further activate and expand the pores of the activated carbon, so that the performance of the activated carbon is gradually recovered.
Preferably, the rotating mechanism comprises a rotating motor, a rotating gear and a gear ring; the rotating motor is arranged on the supporting base 101, and the rotating gear is coaxially and fixedly connected with a rotating shaft of the rotating motor; the gear ring is sleeved on the circumferential surface of the furnace body of the regenerative rotary furnace 1; the rotating gear is in external meshing connection with the gear ring.
Preferably, the alkali liquor spray tower group comprises a first alkali liquor spray tower 303, a second alkali liquor spray tower 304 and a third alkali liquor spray tower 305; the flue gas inlet of the first alkali liquor spray tower 303 is connected with the outlet of the bag-type dust collector 302, and the flue gas outlet of the first alkali liquor spray tower 303 is connected with the flue gas inlet of the second alkali liquor spray tower 304; the flue gas outlet of the second alkali liquor spray tower 304 is connected with the flue gas inlet of a third alkali liquor spray tower 305; the flue gas outlet of the third alkali liquor spray tower 305 is connected with the inlet of the demister 306.
Preferably, a first induced draft fan 310 is arranged between the outlet of the bag-type dust collector 302 and the first alkali liquor spray tower 303; a second induced draft fan 311 is arranged between the activated carbon adsorption tank 307 and the flue gas heater 308.
Preferably, a waste heat utilization system 4 is arranged between the regeneration rotary furnace 1 and the tail gas purification system 3;
the waste heat utilization system 4 comprises a second cyclone dust collector 404, and an inlet of the second cyclone dust collector 404 is connected with a flue gas outlet of the regenerative rotary furnace 1; the outlet of the second cyclone 404 is connected with the inlet of the combustion settling chamber 401; an outlet of the combustion settling chamber 401 is connected with a flue gas inlet of a waste heat boiler 402, and a flue gas outlet of the waste heat boiler 402 is connected with an inlet of a quenching tower 403; the outlet of the quenching tower 403 is connected to the inlet of the dry deacidification tower 301.
Specifically, an SNCR denitration device is disposed on an inlet pipe of the exhaust-heat boiler 402, and the injected 33% urea solution is used as a reducing agent to remove NOxReduction to N2And H2O。
The inlet flue gas temperature of the waste heat boiler 402 is 1050 ℃, and the outlet temperature is not lower than 500 ℃;
the quenching tower 403 adopts a forward flow type spray tower, high-temperature flue gas enters from the bottom of the spray tower, the flue gas is uniformly distributed in the spray tower through a gas distribution device, double-effect evaporation condensed water or tap water is sprayed from the top of the spray tower, the flue gas is directly contacted with the flue gas to rapidly reduce the temperature of the flue gas, and the flue gas is quenched from 500 ℃ to 200 ℃, so that the regeneration of dioxins can be effectively prevented; besides cooling, the flue gas also has the functions of washing and dedusting in the process of quenching. And discharging a part of the removed fly ash from the bottom of the quenching tower for solidification treatment in a subsequent process.
Preferably, the waste heat boiler 402 is a tube type water wall steam boiler, and a steam outlet of the waste heat boiler 402 is connected with the first steam tube 102 and the flue gas heater 308 through steam pipes.
Preferably, the feeding end of the regenerative rotary furnace 1 is provided with a feeding system 5, the feeding system 5 comprises a dry material bin 501, the bottom of the dry material bin 501 is of a funnel structure, the bottom of the dry material bin 501 is provided with a dry material screw feeder 502, and the outlet of the dry material screw feeder 502 is positioned inside the feeding end of the regenerative rotary furnace 1.
Preferably, a drying system 6 is arranged at the front end of the feeding system 5, and the drying system 6 comprises a wet material conveyor 601 for conveying the regenerated material to be activated to a wet material bin 602; the bottom of the wet material bin 602 is provided with a wet material screw feeder 603, the outlet of the wet material screw feeder 603 is connected with the inlet of a drying furnace 604, and the outlet of the drying furnace 604 is connected with the inlet of a dry material bin 501;
the wet material conveyor 601 may adopt belt conveyor, bucket elevator conveyor, elevator, scraper, etc. existing conveying equipment.
The specific implementation mode of the activated carbon regeneration device is as follows:
as shown in fig. 2, the material to be activated and regenerated is dried by a drying system 6 and then enters a regeneration rotary furnace 1 through a feeding system 5;
in the regenerative rotary furnace 1, the material moves downwards and slowly to the discharge end under the action of the rotation of the furnace body and the inclination of the furnace body, and the high-temperature flue gas directly contacts with the material in a countercurrent manner to carbonize the material; specifically, the materials enter a 25-300 ℃ feeding drying section from a feeding end to a discharging end from the feeding end to evaporate low-boiling-point organic matters and water adsorbed in the saturated activated carbon, then enter a 300-750 ℃ anoxic roasting section to further roast the low-boiling-point substances, then enter an 750-1050 ℃ activation section, and are sprayed with water vapor through a first steam pipe 102 in the area to further activate and expand the activated carbon, so that the performance of the activated carbon is gradually recovered; the activated and regenerated active carbon activated and regenerated by the regeneration rotary furnace 1 enters the cold carbon discharging machine 104 from the carbon outlet, and the cold carbon discharging machine 104 uses the recycled water as cooling water to flow in a jacket of the carbon discharging machine to take away the heat of the active carbon and cool the active carbon;
the granular activated carbon cooled by the cold carbon discharging machine 104 enters the screening system 2, and the activated carbon granules screened by the screening system 2 and having the granule particle size meeting the requirement are stored in a storage tank to wait for subsequent packaging; the rest of the flue gas enters the waste heat utilization system 4 through the flue gas outlet;
the flue gas enters a combustion settling chamber 401 after being dedusted by a second cyclone deduster 404, and enters a waste heat boiler 402 for full utilization after being incinerated, and then enters a subsequent tail gas purification system 3 for purification; wherein the waste heat is exhausted from the exhaust stack 309 after being treated by SNCR denitration, quenching, dry deacidification, bag dedusting, wet deacidification, water-vapor separation, activated carbon adsorption treatment and flue gas reheating in the waste heat utilization system 4 and the tail gas purification system.
The steam outlet of the waste heat boiler 402 is connected with the first steam pipe 102 and the flue gas heater 308 through steam pipes, so that corresponding steam is provided for the rotary regenerative furnace 1 and the flue gas heater 308, and the utilization rate of heat is improved.
Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the present invention, and it should be understood by those skilled in the art that various modifications and changes may be made without inventive efforts based on the technical solutions of the present invention.
Claims (10)
1. An activated carbon regeneration device, characterized by comprising:
regenerating a rotary furnace; the bottom of the regenerative rotary furnace is provided with a supporting base, and the supporting base is provided with a rotating mechanism for controlling the rotation of the furnace body of the regenerative rotary furnace; the feeding end to the discharging end of the regeneration rotary furnace are obliquely arranged from high to low; a first steam pipe which is inserted into the regeneration rotary furnace and used for providing steam is arranged at the feed end of the regeneration rotary furnace; a regenerative furnace burner is arranged on the discharge end of the regenerative rotary furnace; a carbon outlet is formed in the lower part of the discharge end of the rotary regenerative furnace, and the carbon outlet and the cold carbon discharging machine are arranged; the upper part of the furnace body of the regeneration rotary furnace is provided with a flue gas outlet;
a screening system; the screening system comprises a scraper conveyer, and the inlet end of the scraper conveyer is connected with the outlet of the cold carbon discharging machine; the outlet end of the scraper conveyor is connected with the bottom inlet of a first screening hoister, and the top outlet of the first screening hoister is connected with the inlet of a finished product tank; the outlet of the finished product tank is connected with the inlet of the impurity removing machine, and the outlet of the impurity removing machine is connected with the bottom inlet of the second screening hoister; the outlet at the top of the second screening hoister is connected with the inlet of a drum screening machine, and the outlet of the drum screening machine is connected with the inlet of the first cyclone dust collector; the outlet of the first cyclone dust collector is connected with the inlet of the first bag-type dust collector, and the outlet of the first bag-type dust collector is connected with the storage tank;
an exhaust gas purification system; the tail gas purification system comprises a dry deacidification tower, and an inlet of the dry deacidification tower is connected with a flue gas outlet of the regeneration rotary furnace; the outlet of the dry deacidification tower is connected with the inlet of a bag-type dust remover, and the outlet of the bag-type dust remover is connected with the inlet of an alkali liquor spraying tower group; the outlet of the alkali liquor spraying tower group is connected with the inlet of a demister, and the outlet of the demister is connected with the inlet of an activated carbon adsorption tank; the outlet of the activated carbon adsorption box is connected with the inlet of the flue gas heater, and the outlet of the flue gas heater is connected with the exhaust chimney.
2. The activated carbon regeneration device as claimed in claim 1, wherein the furnace body from the feeding end to the discharging end of the rotary regenerative furnace is a feeding drying section, a roasting section, an activation section and a discharging section in sequence; the first steam pipe is inserted into the activation section.
3. The activated carbon regeneration device as claimed in claim 2, wherein the temperature of the feed drying section is 25 ℃ to 300 ℃; the temperature of the baking section is 300-750 ℃; the temperature of the activation section is 750-1050 ℃.
4. The activated carbon regeneration device according to claim 1, wherein the rotation mechanism includes a rotating motor, a rotating gear, a gear ring; the rotating gear is coaxially and fixedly connected with a rotating shaft of the rotating motor; the gear ring is sleeved on the circumferential surface of the regeneration rotary furnace body; the rotating gear is in external meshing connection with the gear ring.
5. The activated carbon regeneration device according to claim 1, wherein the lye spray tower set comprises a first lye spray tower, a second lye spray tower, a third lye spray tower; the flue gas inlet of the first alkali liquor spray tower is connected with the outlet of the bag-type dust collector, and the flue gas outlet of the first alkali liquor spray tower is connected with the flue gas inlet of the second alkali liquor spray tower; the flue gas outlet of the second alkali liquor spray tower is connected with the flue gas inlet of the third alkali liquor spray tower; and the flue gas outlet of the third alkali liquor spraying tower is connected with the inlet of the demister.
6. The activated carbon regeneration device of claim 5, wherein a first induced draft fan is arranged between the outlet of the bag-type dust collector and the first alkali liquor spray tower; and a second induced draft fan is arranged between the activated carbon adsorption box and the flue gas heater.
7. The activated carbon regeneration apparatus according to claim 1, wherein a waste heat utilization system is provided between the rotary regenerative furnace and the tail gas purification system;
the waste heat utilization system comprises a second cyclone dust collector, and an inlet of the second cyclone dust collector is connected with a flue gas outlet of the regeneration rotary furnace; the outlet of the second cyclone dust collector is connected with the inlet of the combustion settling chamber; an outlet of the combustion settling chamber is connected with a flue gas inlet of a waste heat boiler, and a flue gas outlet of the waste heat boiler is connected with an inlet of a quench tower; the outlet of the quenching tower is connected with the inlet of the dry deacidification tower.
8. An activated carbon regeneration device as defined in claim 7, wherein the waste heat boiler is a tube type water-cooled wall steam boiler, and a steam outlet of the waste heat boiler is connected with the first steam tube and the flue gas heater through steam pipes respectively.
9. The activated carbon regeneration device as claimed in claim 1, wherein a feeding system is arranged at the feeding end of the rotary regeneration furnace, the feeding system comprises a dry material bin, the bottom of the dry material bin is of a funnel structure, a dry material screw feeder is arranged at the bottom of the dry material bin, and an outlet of the dry material screw feeder is positioned inside the feeding end of the rotary regeneration furnace.
10. The activated carbon regeneration device as claimed in claim 9, wherein a drying system is provided at the front end of the feeding system, and the drying system comprises a wet material conveyor for conveying the regenerated material to be activated to a wet material bin; the bottom of wet feed bin sets up wet material screw feeder, the export of wet material screw feeder links to each other with the entry of drying furnace, the export of drying furnace links to each other with the entry in dry feed bin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010214618.3A CN111346624A (en) | 2020-03-24 | 2020-03-24 | Active carbon regenerating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010214618.3A CN111346624A (en) | 2020-03-24 | 2020-03-24 | Active carbon regenerating unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111346624A true CN111346624A (en) | 2020-06-30 |
Family
ID=71189070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010214618.3A Withdrawn CN111346624A (en) | 2020-03-24 | 2020-03-24 | Active carbon regenerating unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111346624A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111729490A (en) * | 2020-07-01 | 2020-10-02 | 中国计量大学 | Waste gas treatment process in activated carbon regeneration process |
| CN112456494A (en) * | 2020-12-14 | 2021-03-09 | 湖州强大环保科技有限公司 | Energy-saving and environment-friendly activated carbon regeneration activation method and system |
| CN113636553A (en) * | 2021-03-16 | 2021-11-12 | 黄炜 | External heat rotary type high-quality activated carbon efficient energy-saving environment-friendly production device |
| CN114452962A (en) * | 2022-02-11 | 2022-05-10 | 青岛新太平洋节能环保集团有限公司 | Active coke regeneration and tail gas treatment system and treatment process thereof |
-
2020
- 2020-03-24 CN CN202010214618.3A patent/CN111346624A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111729490A (en) * | 2020-07-01 | 2020-10-02 | 中国计量大学 | Waste gas treatment process in activated carbon regeneration process |
| CN112456494A (en) * | 2020-12-14 | 2021-03-09 | 湖州强大环保科技有限公司 | Energy-saving and environment-friendly activated carbon regeneration activation method and system |
| CN112456494B (en) * | 2020-12-14 | 2023-03-10 | 湖州强大环保科技有限公司 | Energy-saving and environment-friendly activated carbon regeneration activation method and system |
| CN113636553A (en) * | 2021-03-16 | 2021-11-12 | 黄炜 | External heat rotary type high-quality activated carbon efficient energy-saving environment-friendly production device |
| CN113636553B (en) * | 2021-03-16 | 2024-02-09 | 黄炜 | External heat rotary high-quality active carbon efficient energy-saving environment-friendly production device |
| CN114452962A (en) * | 2022-02-11 | 2022-05-10 | 青岛新太平洋节能环保集团有限公司 | Active coke regeneration and tail gas treatment system and treatment process thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111346624A (en) | Active carbon regenerating unit | |
| CN110560019A (en) | efficient, energy-saving and environment-friendly waste activated carbon regeneration method | |
| CN203750409U (en) | Flue gas purifying treatment device in waste incineration process | |
| CN107617317A (en) | A kind of ultra-clean cleaning system of flue gas | |
| CN103768929A (en) | Purification treatment device for flue gas generated in garbage incineration process, and application of purification treatment device | |
| JP5428736B2 (en) | Method for reducing mercury components and organochlorine compounds in exhaust gas from cement production facilities | |
| CN107961770B (en) | Regeneration system and regeneration method of adsorbent in coke oven flue gas purification | |
| CN108455605A (en) | A kind of waste active carbon activating and regenerating treatment process | |
| CN206385096U (en) | The high-temperature plasma gasification and melting processing system of trade waste | |
| WO2012089089A1 (en) | Method using dual process reactor for processing flue gas from high temperature waste incinerator, and system thereof | |
| CN111346625A (en) | Many receipts of active carbon high efficiency regenerating unit | |
| CN110360575A (en) | A kind of incineration system at dangerous waste disposition center | |
| JP2006212524A (en) | Composite incineration system and method for waste | |
| CN202289850U (en) | Smoke burning disposal system for sludge | |
| CN109264717B (en) | Clean production process and system for activated carbon and coke | |
| CN113587117B (en) | System and method for innocent treatment of sludge | |
| CN208809774U (en) | A kind of ultra-clean purification system of flue gas | |
| CN213943158U (en) | Typical sewage treatment waste activated carbon regeneration treatment system | |
| CN210278758U (en) | Super-clean emission treatment device for flue gas of household garbage incinerator | |
| CN116422311A (en) | Thermal regeneration device and regeneration method for activated carbon | |
| CN106482120A (en) | The method and apparatus for organic solid waste process being carried out using recirculating fluidized bed | |
| JP4795015B2 (en) | Fly ash detoxification method and apparatus | |
| CN114832606A (en) | Sludge carbonization tail gas treatment and de-whitening process | |
| JP3086156B2 (en) | RDF incineration / exhaust gas treatment equipment | |
| CN209584111U (en) | A kind of superheated steam anaerobic carbonization organic matter integrated system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200630 |
|
| WW01 | Invention patent application withdrawn after publication |