CN212374892U - Kiln type activation furnace - Google Patents
Kiln type activation furnace Download PDFInfo
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- CN212374892U CN212374892U CN202020455376.2U CN202020455376U CN212374892U CN 212374892 U CN212374892 U CN 212374892U CN 202020455376 U CN202020455376 U CN 202020455376U CN 212374892 U CN212374892 U CN 212374892U
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- 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
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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 utility model relates to the technical field of activated carbon manufacturing, in particular to a kiln type activation furnace, which comprises a primary activation furnace body, a secondary activation furnace body, a steam stirring device and a waste heat recovery chamber; compared with the traditional activation furnace, the kiln type activation furnace changes the mode of spraying steam by using a fixed steam pipeline, adds steam by using the stirring blades at the bottom of the activation furnace in the process of stirring materials, ensures that the steam entering the activation furnace can be more fully contacted with the stirred materials, and ensures the activation quality; high-temperature steam in the activation furnace enters the waste heat recovery chamber to heat the waste heat boiler again to produce steam after being used, and heat energy in waste gas of the activation furnace is secondarily utilized, so that the method is very environment-friendly; and simple structure, convenient to use to low in manufacturing cost is fit for using widely.
Description
Technical Field
The utility model relates to the technical field of activated carbon manufacturing, in particular to a kiln type activation furnace.
Background
The production process of the carbon comprises a carbonization process and an activation process, and firstly, the material reacts with air at the high temperature of 400-650 ℃ to generate a carbonized material, so that the carbonization process of the material is realized; then the carbonized material and air are activated at the high temperature of 600-950 ℃, and the activated carbonized material is changed into an activated material and then treated by a discharging process to finally produce the activated carbon. Although the temperature in the cylinder is regulated by devices such as secondary ventilation and the like, the technical requirements that the carbonization temperature is controlled to be 650 ℃ and the activation temperature is controlled to be 600 ℃ to 950 ℃ are difficult to realize in the current commonly-used internal heating type steam activation furnace. The current commonly used external heating type converter is simple in structure, steam and materials can only be in surface contact and cannot be in full contact, the activation efficiency is low, the yield is low, and the fuel consumption is high.
At present, the equipment for producing the activated carbon in China is still a Slapple activation furnace introduced in the former Soviet Union, the furnace has large production capacity and stable product quality, but the investment of the furnace is also large. The construction is more complex, the corresponding production matching equipment investment is also large, and the consumption of the fire coal is larger. It is characterized by that the steam produced by coal-fired steam boiler is reacted with carbonized material in the boiler, and the produced combustible gas CO and small quantity of hydrogen are combusted so as to retain its heat balance. The raw material for producing the activated carbon is water vapor except the carbonized material in the activation furnace, the temperature of the discharged flue gas is 200-400 ℃, the flue gas is discharged into the atmosphere through a chimney, and the flue gas generated by a coal-fired boiler is discharged into the atmosphere, so the environment is greatly polluted. The cost of the water vapor as the main raw material is only second to the consumption of the carbonized material and the steam. For example, about 7-11 tons of steam is used for producing 1 ton of active carbon, 1-1.2 tons of coal is consumed by a boiler, and the power consumption of the boiler is over 100KW, so that the production cost of enterprises is increased.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to solve the technical problems that: provides a kiln type activation furnace which is more environment-friendly in energy utilization.
In order to solve the technical problem, the utility model discloses a technical scheme be: a kiln type activation furnace comprises a primary activation furnace body, a secondary activation furnace body, a steam stirring device and a waste heat recovery chamber;
the top of the primary activation furnace body is provided with a feed hopper, the top of the primary activation furnace is communicated with the waste heat recovery chamber through a flue, and the bottom of the primary activation furnace is communicated with the secondary activation furnace body through a material channel;
the top of the secondary activation furnace body is communicated with the primary activation furnace body through a flue, the bottom of the secondary activation furnace body is provided with a discharge pipe, and the inner cavity of the primary activation furnace body and the inner cavity of the secondary activation furnace body are both cylindrical;
the bottom of each of the first-stage activation furnace body and the second-stage activation furnace body is provided with the stirring device, the stirring device comprises a stirring shaft, stirring blades and a steam pipeline, the stirring shaft extends into the activation furnace body, one end of the stirring shaft, which is positioned in the activation furnace body, is provided with a plurality of stirring blades, the stirring blades are mutually vertical to the stirring shaft, the stirring blades are provided with a plurality of steam nozzles, one end of the stirring shaft, which is positioned outside the activation furnace body, is provided with a steam interface, and the pipeline is arranged in the stirring shaft and the stirring blades in a penetrating manner and communicated with the steam nozzles and the steam interface;
the waste heat recovery device is characterized in that a waste heat recovery boiler is arranged in the waste heat recovery chamber, the waste heat recovery boiler is connected with a steam interface through a pipeline, and a smoke outlet is formed in the top of the waste heat recovery chamber.
The waste heat recovery chamber, the first-stage activation furnace body and the second-stage activation furnace body are arranged in a step shape from high to low, escalators are arranged between the ground and the second-stage activation furnace body, between the second-stage activation furnace body and the first-stage activation furnace body, and between the first-stage activation furnace body and the waste heat recovery chamber, elevators are arranged beside the escalators, and the elevators are used for filling materials into the feed hopper.
And sealing covers are arranged between the steam stirring shaft and the bottom wall of the primary activation furnace body and between the steam stirring shaft and the bottom wall of the secondary activation furnace body.
The stirring shaft is characterized in that the outer wall of the stirring shaft is coated with a cooling sleeve, the inner cavity of the cooling sleeve is provided with a water inlet pipe and a water outlet pipe, and the height of the water inlet pipe is greater than that of the water outlet pipe.
The waste heat recovery boiler water injection system is characterized by further comprising a boiler water injection pump and a motor, wherein the boiler water injection pump injects water into the waste heat recovery boiler through a pipeline, and the motor drives the stirring shaft through a speed reducer.
The waste heat recovery boiler is provided with a steam flowmeter with a digital display meter, and the primary activation furnace body and the secondary activation furnace body are both provided with furnace thermometers.
The beneficial effects of the utility model reside in that: compared with the traditional activation furnace, the kiln type activation furnace changes the mode of spraying steam by using a fixed steam pipeline, adds steam by using the stirring blades at the bottom of the activation furnace in the process of stirring materials, ensures that the steam entering the activation furnace can be more fully contacted with the stirred materials, and ensures the activation quality; high-temperature steam in the activation furnace enters the waste heat recovery chamber to heat the waste heat boiler again to produce steam after being used, and heat energy in waste gas of the activation furnace is secondarily utilized, so that the method is very environment-friendly; and simple structure, convenient to use to low in manufacturing cost is fit for using widely.
Drawings
FIG. 1 is a schematic structural view of a kiln type activation furnace according to an embodiment of the present invention;
FIG. 2 is a top view of a kiln type activation furnace according to an embodiment of the present invention;
fig. 3 is a schematic structural view of a steam stirring device of a kiln type activation furnace according to an embodiment of the present invention;
description of reference numerals:
1. a first-stage activation furnace body; 11. a feed hopper;
2. a secondary activation furnace body; 21. a discharge pipe;
3. a steam stirring device; 31. a stirring shaft; 311. a steam interface; 32. stirring blades; 321. a steam jet; 33. a steam line; 34. a sealing cover; 35. cooling the sleeve;
4. a waste heat recovery chamber; 41. a waste heat recovery boiler; 411. a boiler water injection pump; 42. a smoke outlet;
5. a flue;
6. a material channel;
7. an escalator;
8. a hoist;
9. kiln thermometer.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1, 2 and 3, the kiln type activation furnace of the present invention includes a first-stage activation furnace body 1, a second-stage activation furnace body 2, a steam stirring device 3 and a waste heat recovery chamber 4;
the top of the primary activation furnace body 1 is provided with a feed hopper 11, the top of the primary activation furnace is communicated with a waste heat recovery chamber 4 through a flue 5, and the bottom of the primary activation furnace is communicated with a secondary activation furnace body 2 through a material channel 6;
the top of the secondary activation furnace body 2 is communicated with the primary activation furnace body 1 through a flue 5, the bottom of the secondary activation furnace body 2 is provided with a discharge pipe 21, and the inner cavity of the primary activation furnace body 1 and the inner cavity of the secondary activation furnace body 2 are both cylindrical;
the bottom of the first-stage activation furnace body 1 and the bottom of the second-stage activation furnace body 2 are both provided with the stirring devices, each stirring device comprises a stirring shaft 31, stirring blades 32 and a steam pipeline 33, each stirring shaft 31 extends into the activation furnace body, one end, positioned in the activation furnace body, of each stirring shaft 31 is provided with a plurality of stirring blades 32, the plurality of stirring blades 32 are perpendicular to the corresponding stirring shaft 31, each stirring blade 32 is provided with a plurality of steam nozzles 321, one end, positioned outside the activation furnace body, of each stirring shaft 31 is provided with a steam interface 311, and the pipelines penetrate through the corresponding stirring shaft 31 and the corresponding stirring blades 32 and are communicated with the steam nozzles 321 and the steam interfaces 311;
a waste heat recovery boiler 41 is arranged in the waste heat recovery chamber 4, the waste heat recovery boiler 41 is connected with the steam interface 311 through a pipeline, and a smoke outlet 42 is arranged at the top of the waste heat recovery chamber 4.
The working principle is as follows: the carbonized material is put into the primary activation furnace body 1 from the feed hopper 11 through the hoister 8, the stirring shaft 31 drives the stirring blades 32 to rotate, steam is introduced through the steam connector, the steam enters the activation furnace from the steam outlets on the stirring blades 32 after passing through the steam pipeline 33, and the stirring blades 32 spray the steam while stirring the carbonized material so that the steam is fully contacted with the carbonized material; the flue gas waste heat in the secondary activation furnace body 2 reaches the primary activation furnace body 1 through the flue 5, the flue gas in the primary activation furnace body 1 enters the waste heat recovery chamber 4 through the flue 5 and heats the water in the waste heat boiler, the water in the waste heat boiler is heated to be steam and then is introduced into the steam pipeline 33 for recycling, and the redundant flue gas is discharged from the smoke outlet 42 of the waste heat recovery chamber 4; the materials in the first-stage activation furnace body 1 enter the second-stage activation furnace body 2 for continuous activation through the material channel 6 after being subjected to overactivation, and the materials in the second-stage activation furnace body 2 are discharged through the discharge pipe 21 after being subjected to secondary activation.
As can be seen from the above description, the utility model has the advantages that: compared with the traditional activation furnace, the kiln type activation furnace changes the mode of spraying steam by using a fixed steam pipeline, adds steam by using the stirring blades at the bottom of the activation furnace in the process of stirring materials, ensures that the steam entering the activation furnace can be more fully contacted with the stirred materials, and ensures the activation quality; high-temperature steam in the activation furnace enters the waste heat recovery chamber to heat the waste heat boiler again to produce steam after being used, and heat energy in waste gas of the activation furnace is secondarily utilized, so that the method is very environment-friendly; and simple structure, convenient to use to low in manufacturing cost is fit for using widely.
Further, the waste heat recovery chamber 4, the first-stage activation furnace body 1 and the second-stage activation furnace body 2 are arranged in a step shape from high to low, an escalator 7 is arranged between the ground and the second-stage activation furnace body 2, between the second-stage activation furnace body 2 and the first-stage activation furnace body 1, and between the first-stage activation furnace body 1 and the waste heat recovery chamber 4, a lifting machine 8 is arranged beside the escalator 7, and the lifting machine 8 is used for filling the feeding hopper 11.
Further, sealing covers 34 are arranged between the steam stirring shaft 31 and the bottom wall of the primary activation furnace body 1 and between the steam stirring shaft 31 and the bottom wall of the secondary activation furnace body 2.
Further, the outer wall of the stirring shaft 31 is coated with a cooling sleeve 35, an inner cavity of the cooling sleeve 35 is provided with a water inlet pipe and a water outlet pipe, and the height of the water inlet pipe is larger than that of the water outlet pipe.
As can be seen from the above description, the cooling jacket functions to cool the stirring shaft; the height of the water inlet pipe is larger than that of the water outlet pipe so as to discharge the cooling water in the cooling sleeve in a circulating mode.
Further, still include boiler water injection pump 411 and motor, boiler water injection pump 411 passes through the pipeline and injects water to waste heat recovery boiler 41, the motor drives (mixing) shaft 31 through the reduction gear.
Further, a steam flowmeter with a digital display meter is arranged on the waste heat recovery boiler 41, and kiln thermometers 9 are arranged in the first-stage activation furnace body 1 and the second-stage activation furnace body 2.
Referring to fig. 1, fig. 2 and fig. 3, a first embodiment of the present invention is:
a kiln type activation furnace comprises a primary activation furnace body 1, a secondary activation furnace body 2, a steam stirring device 3 and a waste heat recovery chamber 4;
the top of the primary activation furnace body 1 is provided with a feed hopper 11, the top of the primary activation furnace is communicated with a waste heat recovery chamber 4 through a flue 5, and the bottom of the primary activation furnace is communicated with a secondary activation furnace body 2 through a material channel 6;
the top of the secondary activation furnace body 2 is communicated with the primary activation furnace body 1 through a flue 5, the bottom of the secondary activation furnace body 2 is provided with a discharge pipe 21, and the inner cavity of the primary activation furnace body 1 and the inner cavity of the secondary activation furnace body 2 are both cylindrical;
the bottom of the first-stage activation furnace body 1 and the bottom of the second-stage activation furnace body 2 are both provided with the stirring devices, each stirring device comprises a stirring shaft 31, stirring blades 32 and a steam pipeline 33, each stirring shaft 31 extends into the activation furnace body, one end, positioned in the activation furnace body, of each stirring shaft 31 is provided with a plurality of stirring blades 32, the plurality of stirring blades 32 are perpendicular to the corresponding stirring shaft 31, each stirring blade 32 is provided with a plurality of steam nozzles 321, one end, positioned outside the activation furnace body, of each stirring shaft 31 is provided with a steam interface 311, and the pipelines penetrate through the corresponding stirring shaft 31 and the corresponding stirring blades 32 and are communicated with the steam nozzles 321 and the steam interfaces 311;
a waste heat recovery boiler 41 is arranged in the waste heat recovery chamber 4, the waste heat recovery boiler 41 is connected with the steam interface 311 through a pipeline, and a smoke outlet 42 is arranged at the top of the waste heat recovery chamber 4. The waste heat recovery chamber 4, the first-stage activation furnace body 1 and the second-stage activation furnace body 2 are arranged in a step shape from high to low, escalators 7 are arranged between the ground and the second-stage activation furnace body 2, between the second-stage activation furnace body 2 and the first-stage activation furnace body 1 and between the first-stage activation furnace body 1 and the waste heat recovery chamber 4, elevators 8 are arranged beside the escalators 7, and the elevators 8 are used for filling materials into a feed hopper 11;
sealing covers 34 are arranged between the steam stirring shaft 31 and the bottom wall of the primary activation furnace body 1 and between the steam stirring shaft 31 and the bottom wall of the secondary activation furnace body 2;
a cooling sleeve 35 is coated on the outer wall of the stirring shaft 31, a water inlet pipe and a water outlet pipe are arranged in the inner cavity of the cooling sleeve 35, and the height of the water inlet pipe is greater than that of the water outlet pipe;
the waste heat recovery boiler is characterized by further comprising a boiler water injection pump 411 and a motor, wherein the boiler water injection pump 411 injects water into the waste heat recovery boiler 41 through a pipeline, and the motor drives the stirring shaft 31 through a speed reducer;
the waste heat recovery boiler 41 is provided with a steam flowmeter with a digital display meter, and the first-stage activation furnace body 1 and the second-stage activation furnace body 2 are both internally provided with kiln thermometers 9.
To sum up, compared with the traditional activation furnace, the kiln type activation furnace provided by the utility model changes the way of spraying steam by using a fixed steam pipeline, adds steam in the process of stirring materials by using the stirring blades at the bottom of the activation furnace, ensures that the steam entering the activation furnace can be more fully contacted with the stirred materials, and ensures the activation quality; high-temperature steam in the activation furnace enters the waste heat recovery chamber to heat the waste heat boiler again to produce steam after being used, and heat energy in waste gas of the activation furnace is secondarily utilized, so that the method is very environment-friendly; the structure is simple, the use is convenient, the manufacturing cost is low, and the device is suitable for popularization and use;
the cooling sleeve is arranged to play a role in cooling the stirring shaft; the height of the water inlet pipe is larger than that of the water outlet pipe so as to discharge the cooling water in the cooling sleeve in a circulating mode.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (6)
1. A kiln type activation furnace is characterized by comprising a primary activation furnace body, a secondary activation furnace body, a steam stirring device and a waste heat recovery chamber;
the top of the primary activation furnace body is provided with a feed hopper, the top of the primary activation furnace is communicated with the waste heat recovery chamber through a flue, and the bottom of the primary activation furnace is communicated with the secondary activation furnace body through a material channel;
the top of the secondary activation furnace body is communicated with the primary activation furnace body through a flue, the bottom of the secondary activation furnace body is provided with a discharge pipe, and the inner cavity of the primary activation furnace body and the inner cavity of the secondary activation furnace body are both cylindrical;
the bottom of each of the first-stage activation furnace body and the second-stage activation furnace body is provided with the stirring device, the stirring device comprises a stirring shaft, stirring blades and a steam pipeline, the stirring shaft extends into the activation furnace body, one end of the stirring shaft, which is positioned in the activation furnace body, is provided with a plurality of stirring blades, the stirring blades are mutually vertical to the stirring shaft, the stirring blades are provided with a plurality of steam nozzles, one end of the stirring shaft, which is positioned outside the activation furnace body, is provided with a steam interface, and the pipeline is arranged in the stirring shaft and the stirring blades in a penetrating manner and communicated with the steam nozzles and the steam interface;
the waste heat recovery device is characterized in that a waste heat recovery boiler is arranged in the waste heat recovery chamber, the waste heat recovery boiler is connected with a steam interface through a pipeline, and a smoke outlet is formed in the top of the waste heat recovery chamber.
2. The kiln type activation furnace as claimed in claim 1, wherein the waste heat recovery chamber, the primary activation furnace body and the secondary activation furnace body are arranged in a step shape from high to low, escalators are arranged between the ground and the secondary activation furnace body, between the secondary activation furnace body and the primary activation furnace body, and between the primary activation furnace body and the waste heat recovery chamber, and a lifter is arranged beside the escalators and used for filling the feeding hopper with materials.
3. The kiln type activation furnace as claimed in claim 1, wherein sealing covers are arranged between the steam stirring device and the bottom wall of the primary activation furnace body and between the steam stirring device and the bottom wall of the secondary activation furnace body.
4. The kiln type activation furnace of claim 1, wherein the outer wall of the stirring shaft is coated with a cooling sleeve, an inner cavity of the cooling sleeve is provided with a water inlet pipe and a water outlet pipe, and the height of the water inlet pipe is greater than that of the water outlet pipe.
5. The kiln activation furnace of claim 4, further comprising a boiler water injection pump and a motor, wherein the boiler water injection pump injects water into the waste heat recovery boiler through a pipeline, and the motor drives the stirring shaft through a speed reducer.
6. The kiln type activation furnace of claim 1, wherein a steam flow meter with a digital display meter is arranged on the waste heat recovery boiler, and kiln thermometers are arranged in the primary activation furnace body and the secondary activation furnace body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020455376.2U CN212374892U (en) | 2020-04-01 | 2020-04-01 | Kiln type activation furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020455376.2U CN212374892U (en) | 2020-04-01 | 2020-04-01 | Kiln type activation furnace |
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| CN212374892U true CN212374892U (en) | 2021-01-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113003575A (en) * | 2021-03-18 | 2021-06-22 | 南京工程学院 | Active carbon production device and method for forced internal disturbance coupling homogeneous steam distribution |
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2020
- 2020-04-01 CN CN202020455376.2U patent/CN212374892U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113003575A (en) * | 2021-03-18 | 2021-06-22 | 南京工程学院 | Active carbon production device and method for forced internal disturbance coupling homogeneous steam distribution |
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