CN210480884U - Active carbon preparation system - Google Patents
Active carbon preparation system Download PDFInfo
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- CN210480884U CN210480884U CN201920966061.1U CN201920966061U CN210480884U CN 210480884 U CN210480884 U CN 210480884U CN 201920966061 U CN201920966061 U CN 201920966061U CN 210480884 U CN210480884 U CN 210480884U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
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Abstract
The embodiment of the utility model discloses active carbon preparation system, it includes: the waste heat boiler comprises an activation furnace, a combustion chamber, a mixer and a waste heat boiler, wherein a coal gas outlet of the activation furnace is connected with a coal gas inlet of the combustion chamber, a heated gas outlet of the combustion chamber and a steam outlet of the waste heat boiler are respectively connected with the activation furnace through the mixer, the heated gas and the water vapor are fully mixed in the mixer, and a combustion flue gas outlet of the combustion chamber is connected with an air inlet of the waste heat boiler. The activated carbon preparation system of the embodiment of the utility model carries out the activation reaction of the carbonized material on the reaction plate with a plurality of air caps, and the mixed gas of the water vapor coming out of the air caps and the heated air makes the carbonized material in a boiling state under the pressure action of the mixed gas and the self gravity of the carbonized material to form a fluidized state; the steam and the carbonized material are uniformly and fully mixed, the steam is saved, the energy is saved, and high-quality active carbon can be produced.
Description
Technical Field
The embodiment of the utility model provides an embodiment relates to active carbon production facility technical field, concretely relates to active carbon preparation system.
Background
Currently, there are various types of furnaces for producing activated carbon, for example: smoldering furnaces, tube furnaces, rotary furnaces, fluidized bed furnaces, flat-bed furnaces, multi-stage furnaces, Steckel furnaces, Schlep furnaces, and the like. Wherein, the Silepu furnace originated in France in the thirties of the twentieth century, and then popularized in the original Soviet Union to produce coal columnar activated carbon in a large scale. The Slapple furnace has certain characteristics: if the saddle brick is arranged in the activation belt, the carbon granules move along the zigzag path, so that the activation effect is enhanced; the regenerator is designed, so that the heat energy utilization is good, and the saturated vapor temperature of the activating agent is high, thereby being beneficial to activation; no heavy maintenance workload; the service life of the furnace is long. However, the defects of the Slapple furnace are two points: the accumulated slag on the activating belt saddle can not be removed, the manufacturing cost is high, the one-time investment is large, and the energy consumption, the cost and the environmental protection property are poor in the process of preparing the active carbon.
The multi-stage furnace, also known as a rake furnace, can produce granular carbon and powdered carbon. Due to the structural characteristics of the multi-stage furnace, the rake teeth on each layer rotate to stir the carbon layer, so that the carbon is turned over for multiple times, the activation can be effectively carried out, and the activation speed is accelerated. Its effective contact area is large, and its layer number is large, so that its production capacity is large. The mechanization and automation can be realized, the rotating shaft, the rake teeth and the arms all need high-temperature-resistant steel materials, the technical transfer cost is added, the investment is large, no certain economic strength can be built, and the production cost is high; in addition, because rake teeth are required to stir the carbon layer in the process of producing the activated carbon, the damage rate of the prepared activated carbon product is high.
The rotary furnace belongs to a flowing bed, is convenient to blow in and shut down, can produce easily activated carbon, consumes certain carbonized materials, has large mechanical maintenance amount, needs to lengthen a furnace cylinder for continuous production, has larger manufacturing cost, and is not environment-friendly in production process.
In summary, in the conventional activated carbon production furnace, the problems of high production cost, high manufacturing cost, poor environmental protection and high energy consumption of the activated carbon in the activated carbon production process are urgently needed to be further improved.
SUMMERY OF THE UTILITY MODEL
Therefore, the embodiment of the utility model provides an active carbon preparation system to there is the problem that consumes energy height, steam consumption is big, manufacturing cost is high, the feature of environmental protection is poor in active carbon production facility among the solution prior art.
In order to achieve the above object, the embodiment of the present invention provides the following technical solutions:
an activated carbon production system, comprising: the device comprises an activation furnace, a combustion chamber, a mixer and a waste heat boiler, wherein a coal gas outlet of the activation furnace is connected with a coal gas inlet of the combustion chamber, a heated air outlet and a steam outlet of the waste heat boiler are respectively connected with the activation furnace through the mixer, heated gas and water vapor are fully mixed in the mixer, and a combustion flue gas outlet of the combustion chamber is connected with an air inlet of the waste heat boiler;
the bottom of the activation furnace is provided with a reaction plate, the reaction plate is provided with a plurality of air caps, a mixture of water vapor and air in the mixer enters the activation furnace through the air caps to perform activation reaction with the carbonized material on the reaction plate, and the heated air and the water vapor are used as fluidizing mediums to realize the full contact of solid carbonized material particles in the activation furnace and gas mediums.
Preferably, the middle upper part of the activation furnace is provided with a feed inlet, and the feed inlet is connected with a feeding device through a vertical pipe.
Preferably, a discharge hole of the activation furnace is connected with a roller slag cooler.
Preferably, the discharge port is of a conical cylinder-shaped structure, and through holes which can be communicated with the steam outlet of the waste heat boiler are formed in the peripheral side of the conical cylinder.
Preferably, the combustion chamber is horizontally arranged, coal gas from the activation furnace is sprayed into the combustion nozzle from the center of the combustion nozzle, and the circumferential direction of the combustion nozzle is uniformly provided with air inlets with dip angles, so that swirl flame can be formed;
an air-flue gas heat exchanger is arranged at the rear part of the combustion chamber, and air is preheated in the combustion chamber.
Preferably, the blender embeds there is the pipe that supplies preheated air to get into, the tip of pipe is sealed, and week side is equipped with the venthole, and preheated air spouts through the venthole perpendicular to vapor flow direction, realizes the intensive mixing of preheated air and vapor.
Preferably, the waste gas outlet of the waste heat boiler is connected with the desulfurizing tower through a dust removing device.
Preferably, a plurality of temperature measuring devices and pressure measuring devices are arranged on the activation furnace, and a material level monitoring device is further arranged on the activation furnace.
Preferably, the preheated air inlet is connected with a Roots blower, and a check valve is arranged on a pipeline connecting the Roots blower and the combustion chamber.
The embodiment of the utility model provides a have following advantage:
the activated carbon preparation system provided by the embodiment of the utility model carries out activation reaction on the carbonized material on the reaction plate with a plurality of air caps, and the carbonized material is in a boiling state and forms a fluidized state under the action of the mixed gas of the water vapor coming out of the air caps and the heated air, the pressure of the mixed gas and the self gravity of the carbonized material; the steam and the carbonized material are uniformly and fully mixed, the steam is saved, the energy is saved, and high-quality active carbon can be produced. The oxygen entering the activation furnace is quantified through the Roots blower, the combustible gas generated by the reaction of the water vapor and the carbonized materials fully reacts with the oxygen, and the released energy can keep the furnace temperature of the activation furnace on one hand and supplement the energy required by the activation reaction of the carbonized materials on the other hand, so that the activation reaction is continuously carried out. Meanwhile, various types of activated carbon can be produced, including preparation of high-strength activated carbon and the like.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the scope which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.
Fig. 1 is a schematic structural composition diagram of an activated carbon preparation system provided in embodiment 1 of the present invention;
in the figure: 1-a feeding device; 2-activating furnace; 3-a combustion chamber; 4, a waste heat boiler; 5-a dust remover; 6-a desulfurizing tower; 7-a draught fan; 8-a chimney; 9-Roots blower; 10-a mixer; 11-roller slag cooler; 12-centrifugal fan.
Detailed Description
The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides an activated carbon preparation system, which includes an activation furnace 2, a combustion chamber 3, a mixer 10 and a waste heat boiler 4, wherein a coal gas outlet of the activation furnace 2 is connected to a coal gas inlet of the combustion chamber 3, a heated air outlet of the combustion chamber 3 is connected to the activation furnace 2, and a combustion flue gas outlet of the combustion chamber 3 is connected to an air inlet of the waste heat boiler 4; a steam outlet of the waste heat boiler 4 is connected with the activation furnace 2 through a mixer 10; the bottom of the activation furnace 2 is provided with a reaction plate, a plurality of air caps are uniformly arranged on the reaction plate, and the inner wall of the activation furnace 2 is also provided with a material level detection device for detecting the addition amount of the carbonized materials in the activation furnace; the gas in the mixer 10 enters the activation furnace through the blast caps and is subjected to activation reaction with the carbonized material which enters the activation furnace and is positioned on the reaction plate, the mixed gas of water vapor and hot air which enters the activation furnace from a plurality of blast caps which are uniformly distributed on the reaction plate is made of refractory materials, the upward pressure of the mixed air and the downward gravity action of the carbonized material, the track of the carbonized material in the activation furnace is more uniform, the carbonized material is fused with the mixed gas, the carbonized material is in a fluidized state, and the purposes of saving water vapor, saving energy and improving the conversion rate are achieved. The embodiment of the utility model provides an in, air and vapor can realize inside solid carbonization material granule and the abundant contact of mist medium as fluidizing medium, and heat and mass transfer are efficient, have avoided other active carbon apparatus for producing because of the insufficient vapor that leads to of contact to consume height, calorific loss big scheduling problem. The fluidization speed in the activation furnace is controlled to be 0.5-1 m/s, and the mass ratio of the air volume to the carbonized material is 1.5-2 m3The mass ratio of the water vapor to the carbonized material is 0.8-1.2 kg/kg. The height of the carbonized material layer in the activation furnace and the inner diameter of the activation furnaceThe proportion is 0.7-1.2, so that the yield of the activated carbon is improved while effective activation can be realized, the power consumption of a fan is reduced, and the escape of fine particles is reduced, wherein the yield of the activated carbon is 45-55% under the above conditions.
The side wall of the top of the activation furnace 2 is provided with a feed inlet, the feed inlet is connected with the feeding device 1 through a vertical pipe, cold air is introduced into the pipe to serve as conveying media and cooling media, a sealing valve is further installed between conveying pipelines connected with the feed inlet and the feeding device 1, the feeding device 1 comprises a screw feeder, carbon materials in the feeding device 1 are conveyed into the activation furnace 2 through the screw feeder, and finally the carbon materials are stacked on a reaction plate.
The mixer 10 is a mixture of hot air and water vapor, the mixture enters the activation furnace through a plurality of hoods and fully reacts with the high-temperature carbonized material accumulated on the reaction plate, and the carbonized material is in a boiling state under the action of the air flow, so that the activation reaction is more full, the water vapor is saved, and the carbon ablation is reduced. Through setting up the reaction of carrying out the material on the reaction plate, not only can prepare general active carbon, can prepare high strength active carbon moreover.
The embodiment of the utility model provides an in, carbonization material passes through in feeder 1 adds activation furnace 2, and the hot-air and the steam that let in bottom the activation furnace take place to react, and partial carbon takes place to react the release heat with the oxygen in the preheated air in the carbonization material, maintains the reaction chamber temperature about 900 ℃. And (3) activating the steam and the carbonized material particles in a fluidized state under the high-temperature condition, discharging the prepared activated carbon to a roller slag cooler 11 through an outlet at the bottom of the activation furnace, cooling and discharging.
The utility model discloses still be equipped with a plurality of temperature measurement device and pressure measurement device and material level measuring device on the activation furnace 2, through pressure detection device and the temperature-detecting device that different positions department set up on the activation furnace 2, temperature and pressure in survey activation furnace 2 that can be convenient control each item condition of activated carbon reaction, reach real time monitoring's purpose, increased the controllability of activated carbon reaction.
The discharge gate of activation furnace 2 is connected with cylinder cold sediment machine 11, and cylinder cold sediment machine 11 can be fast with the active carbon cooling of preparation in the activation furnace to suitable temperature, and the preferred still installs the picture peg in discharge gate department, through the load of picture peg control active carbon.
High-temperature coal gas generated in the activation furnace is conveyed to the combustion chamber 3 through an insulating pipeline and is combusted with air fed by the centrifugal fan 12 to release heat, the temperature of the combustion chamber 3 is 1000 ℃, the air fed into the activation furnace is preheated to 300 ℃ by a heat exchanger arranged in the combustion chamber 3, and then high-temperature flue gas enters the waste heat boiler 4.
The bottom of activation furnace and 3 by the heated air exit linkage of combustion chamber, combustible gas in the combustion chamber 3 with activation furnace 2 fully burns, the heat that the burning produced heats the air through the heat exchanger, the air after the heating enters into the activation furnace through blender 10, the waste gas of 3 combustions of combustion chamber lets in exhaust-heat boiler 4, obtain vapor to water heating, some entering mixer 10 of vapor, fully mix with the air that is heated in mixer 10, another part passes through baffle and discharge gate UNICOM. Thus, the heated air and the water vapor are fully mixed in the mixer 10, and the mixed gas enters the activation furnace through a plurality of gas caps to react with the carbon material. The air heated in the combustion chamber 3 is fully and uniformly mixed with the water vapor from the waste heat boiler 4 through the mixer 10, and the uniformly mixed gas can better participate in the reaction of the activated carbon, so that the activation reaction efficiency is improved.
The embodiment of the utility model provides an in, combustion chamber 3 adopts horizontal arrangement, and coal gas is spouted into from the nozzle center, and the nozzle is circumference equipartition all around and takes inclination air inlet, makes it form whirl flame, and air-gas heater is arranged at 3 rear portions of combustion chamber, preheats the air that will get into the reactor to 300 ℃, when realizing waste heat recovery, has avoided steam and low temperature air to mix and has produced the condensation. The temperature of the flue gas discharged from the combustion chamber 3 is reduced to 180 ℃ through a waste heat boiler, the flue gas enters a bag-type dust remover 5 to remove dust, and then the flue gas enters a desulfurization system to remove SO2And is sent into a chimney for emission through a draught fan 7. The waste gas outlet of the waste heat boiler 4 is connected with the desulfurizing tower 6 through the dust removing device, the waste heat air coming out from the combustion chamber is subjected to heat recovery of the waste heat boiler 4, the waste gas is subjected to dust removal through the dust removing device, and the gas subjected to dust removal is removed through the desulfurizing tower 6Sulfur, thereby reducing the discharge of pollutants such as smoke dust, sulfur dioxide, nitrogen oxides and the like in the waste gas, reducing the discharge amount of harmful pollutants in the gas discharged by the activation furnace 2, and simultaneously fully utilizing and recycling the energy through the combustion chamber 3 and the waste heat boiler 4, thereby achieving the purpose of environmental protection and energy saving. The gas outlet department of desulfurizing tower 6 still is connected with draught fan 7, and the waste gas after 6 desulfurates through the desulfurizing tower discharges in the air through draught fan 7 through chimney 8 for the processing of waste gas is more smooth in the desulfurizing tower 6, accelerates the speed to exhaust-gas treatment.
The preheated air inlet is connected with the Roots blower 9, and a check valve is arranged on a preheated air pipeline connecting the Roots blower 9 and the combustion chamber 3. The amount of heated air entering the combustion chamber 3 is controlled by the Roots blower 9, so that the amount of gas entering the activation furnace to participate in the activation reaction can be accurately controlled, and the ablation of carbonized materials is reduced. The amount of heated air entering the combustion chamber 3 is controlled by the Roots blower 9, so that the amount of gas entering the activation furnace and participating in the activated carbon production reaction can be indirectly controlled, the content of oxygen in the reaction gas is accurately controlled, high-quality activated carbon can be produced, homogeneous reaction between the oxygen and combustible gas is carried out, and the released heat can not only keep the furnace temperature, but also provide energy required by the activation reaction between water vapor and carbon.
The exhaust-heat boiler 4 can cool the flue gas to 180 ℃ and generate 0.3MPa saturated steam. Steam and the air after preheating pass through blender 10 and mix, and the top of blender 10 embeds the pipe, and the pipe is sealed, sets up a plurality of ventholes around the pipe, and the preheated air passes through the venthole perpendicular to vapor flow direction and spouts into, realizes the effective mixture of preheated air and vapor.
The combustion chamber 3 is also provided with a centrifugal fan 12 which distributes air for supporting combustion, and air entering from the centrifugal fan 12 and combustible gas carry out combustion reaction, so that the combustible gas coming out of the activation furnace is fully combusted.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (9)
1. An activated carbon preparation system characterized by comprising: the device comprises an activation furnace, a combustion chamber, a mixer and a waste heat boiler, wherein a coal gas outlet of the activation furnace is connected with a coal gas inlet of the combustion chamber, a heated air outlet of the combustion chamber and a steam outlet of the waste heat boiler are respectively connected with the activation furnace through the mixer, heated gas and water vapor are fully mixed in the mixer, and a combustion flue gas outlet of the combustion chamber is connected with an air inlet of the waste heat boiler;
the bottom of the activation furnace is provided with a reaction plate, the reaction plate is provided with a plurality of air caps, a mixture of water vapor and air in the mixer enters the activation furnace through the air caps to perform activation reaction with the carbonized material on the reaction plate, and the heated air and the water vapor are used as fluidizing mediums to realize the full contact of solid carbonized material particles in the activation furnace and gas mediums.
2. The activated carbon production system of claim 1,
the middle upper part of the activation furnace is provided with a feed inlet, and the feed inlet is connected with a feeding device through a vertical pipe.
3. The activated carbon production system of claim 1,
and a discharge port of the activation furnace is connected with a roller slag cooler.
4. The activated carbon production system of claim 3,
the discharge gate sets up to a toper section of thick bamboo tubular structure, the week side of a toper section of thick bamboo be provided with can with exhaust-heat boiler's vapor outlet intercommunication's through-hole.
5. The activated carbon production system of claim 1,
the combustion chamber is horizontally arranged, coal gas from the activation furnace is sprayed into the combustion nozzle from the center of the combustion nozzle, and the circumferential direction of the combustion nozzle is uniformly provided with air inlets with inclination angles, so that swirl flame can be formed;
an air-smoke heat exchanger is arranged at the rear part of the combustion chamber, and the air entering the activation furnace is preheated in the combustion chamber.
6. The activated carbon production system of claim 1,
the blender embeds there is the pipe that supplies preheated air to get into, the tip of pipe is sealed, and week side is equipped with the venthole, and preheated air spouts into through venthole perpendicular to vapor flow direction, realizes the intensive mixing of preheated air and vapor.
7. The activated carbon production system of claim 1,
and a flue gas outlet of the waste heat boiler is connected with the desulfurizing tower through a dust removal device.
8. The activated carbon production system of claim 1,
the activation furnace is provided with a plurality of temperature measuring devices and pressure measuring devices, and is also provided with a material level monitoring device.
9. The activated carbon production system of claim 1,
the preheating air inlet of the combustion chamber is connected with a Roots blower, and a check valve is arranged on a pipeline connecting the Roots blower and the combustion chamber.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110117013A (en) * | 2019-06-10 | 2019-08-13 | 新疆鑫力环保科技有限公司 | A kind of active carbon preparation system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110117013A (en) * | 2019-06-10 | 2019-08-13 | 新疆鑫力环保科技有限公司 | A kind of active carbon preparation system |
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