CN214718423U - Activated carbon regeneration material dust separation system - Google Patents
Activated carbon regeneration material dust separation system Download PDFInfo
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- CN214718423U CN214718423U CN202120634071.2U CN202120634071U CN214718423U CN 214718423 U CN214718423 U CN 214718423U CN 202120634071 U CN202120634071 U CN 202120634071U CN 214718423 U CN214718423 U CN 214718423U
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Abstract
The utility model discloses an active carbon regeneration material dust separation system, which comprises a blanking channel and a dust bin, wherein the blanking channel is obliquely arranged, and the dust bin is vertically arranged; the top end of the blanking channel is provided with a high-temperature feeding hole, the blanking channel is communicated with the dust bin, a material dust screen is arranged at the communication position of the blanking channel and the dust bin, and the lower end of the blanking channel is communicated with the bin; the lower end of the dust bin is provided with a fine dust recoverer, the lower part of the fine dust recoverer is provided with an air inlet, the air inlet is communicated with an outlet of the air blower, the fine dust recoverer is provided with a dust-containing air outlet, and the lower end of the fine dust recoverer is provided with a dust falling port; a coarse dust and fine dust separating baffle is arranged in the middle of the cavity of the fine dust recoverer; offer the entry of an export intercommunication draught fan on the blanking passageway, the export intercommunication power plant's coal pulverizer back wind pipeline of dusty air outlet and draught fan, the device simple structure can effectively separate the dirt powder that the active carbon produced in absorption and regeneration process, and separation efficiency is high, and the separation back high temperature dirt powder can reuse, and is energy-conserving economized material, and the clean environmental protection of operation scene.
Description
Technical Field
The utility model belongs to the technical field of the flue gas pollutant purifies, concretely relates to active carbon regeneration material dirt piece-rate system.
Background
The utilization mode of direct combustion of coal can generate a large amount of acidic waste gas pollutants, such as smoke dust and SO2NOx and the like seriously affect the balance of ecological environment and the physical health of people. NOx is mainly composed of NO and also contains a small amount of NO2. At present, the mainstream flue gas purification technology is to perform desulfurization, denitrification and dust removal by adopting the combination of SCR denitration, ESP electric precipitation and FGD wet desulphurization.
The traditional flue gas desulfurization and denitration adopt a separate treatment method, although a certain achievement is achieved, the equipment is huge, the technology is complex, the cost is overhigh, and great influence is caused to the development of a thermal power plant. For example, the FGD wet desulphurization technology occupies a large area, needs a large amount of limestone as an auxiliary absorbent, is easy to corrode and scale the inner wall of the equipment and has high maintenance difficulty. The SCR denitration technology has high initial investment cost, ammonia or urea needs to be continuously consumed as a reducing agent, an SCR catalyst is easy to be poisoned and invalid, the treatment difficulty is high, and the operation cost is high. Although the above-mentioned difficult problem has been solved to the integration flue gas pollutant desorption technique of current novel high-efficient low temperature, nevertheless in activated carbon adsorption and regeneration process, along with the adsorption regeneration circulation that the activated carbon adsorbent flows, can produce a large amount of dusts, the dust powder doping not only can increase the pipeline resistance in the activated carbon adsorbent, easily blocks up, and under the oxygen regeneration atmosphere of high temperature, activated carbon powder changes to catch fire in addition, causes the activated carbon loss, has the potential safety hazard of system. Therefore, there is a need for effectively separating dust generated during the adsorption and regeneration processes of activated carbon, so that the activated carbon adsorbent can be recycled safely and efficiently.
SUMMERY OF THE UTILITY MODEL
In order to overcome the shortcoming that above-mentioned prior art exists, the utility model aims to provide an active carbon regeneration material dirt piece-rate system, the device simple structure can effectively separate the dirt powder that the active carbon produced in absorption and regeneration process, and separation efficiency is high, and the dirt powder after the separation can reuse, and energy-conservation festival material, the clean environmental protection of operation scene.
In order to realize the purpose, the utility model discloses a technical scheme is: an active carbon regeneration material dust separation system comprises a blanking channel and a dust bin, wherein the blanking channel is obliquely arranged, and the dust bin is vertically arranged; the top end of the blanking channel is provided with a high-temperature feeding hole, the blanking channel is communicated with the dust bin, a material dust screen is arranged at the communication position of the blanking channel and the dust bin, the lower end of the blanking channel is communicated with the bin, and the material dust screen is arranged along the channel wall of the blanking channel; the lower end of the dust bin is provided with a fine dust recoverer, the lower part of the fine dust recoverer is provided with an air inlet, the air inlet is communicated with an outlet of an air blower, the fine dust recoverer is provided with a dust-containing air outlet, the dust-containing air outlet is communicated with a primary air pipeline behind a coal mill of a power plant, the lower end of the fine dust recoverer is connected with a dust falling valve, and the lower end of the dust falling valve is provided with a dust falling port; a coarse dust and fine dust separating baffle is arranged in the middle of the cavity of the fine dust recoverer; an outlet of the induced draft fan is communicated with a primary air pipeline behind a coal mill of a power plant, and an air inlet faces to the center of the fine dust recoverer.
The bottom end of the dust bin is provided with a fine dust collector blanking pipe which extends into the fine dust collector, the fine dust collector blanking pipe is provided with a fine dust separating baffle which is arranged outside the fine dust collector blanking pipe, the flow area of the fine dust separating baffle is gradually reduced from top to bottom, and a circle of the upper end of the fine dust separating baffle is provided with a downward bend.
The distance between the thick and thin dust separating baffle and the outer side of the fine dust collector blanking pipe is 10-20cm, and the distance between the position with the largest diameter of the thick and thin dust separating baffle and the inner wall of the fine dust collector is 5-30 cm.
The dust distributor is arranged below the coarse and fine dust separating baffle and comprises vertical partition plates, the vertical partition plates are arranged at equal interval angles in the vertical direction, and the number of the intervals is the same as that of the air inlets.
The dust-containing air outlets are arranged at the top end of the fine dust recoverer, and the number of the dust-containing air outlets is the same as that of the air inlets.
A screen is arranged at the position of the dust-containing air outlet or at the top end of the coarse and fine dust separating baffle, and the size of the screen is 4-12 meshes;
the material dust screen is a pluggable screen, and the specification of the material dust screen is 8 meshes, 10 meshes, 12 meshes or 14 meshes.
A feeding baffle is arranged below the high-temperature feeding hole, one end of the feeding baffle is connected with the blanking channel, the other end of the feeding baffle is a suspended end, and a blanking gap is reserved between the suspended end and the material dust screen.
The feeding baffle adopts a rigid plate.
The lower end of the stock bin is communicated with the blanking port, and a blanking valve is arranged between the lower end of the stock bin and the blanking port.
Compared with the prior art, the utility model discloses following beneficial effect has at least:
the utility model discloses active carbon material dirt effective separation after will regenerating, the active carbon material after the separation is retrieved, the dust after the separation, get into fine dust recoverer through the dust storehouse, thick and thin separation under the effect of air-blower and thick and thin dirt separation baffle, wherein fine dust blows off from the dusty air outlet along with under the air current drives, fine dust directly sends to the coal pulverizer back wind pipeline and finally gets into the boiler, the raise dust of blanking in-process is sent to the coal pulverizer back wind pipeline and finally gets into the boiler along with the air current under the effect of draught fan, this system simple structure, can effectively separate the dust powder that the active carbon produced at absorption and regeneration in-process, separation efficiency is high, active carbon material and dust all can reuse after the separation, energy-saving and material-saving, the clean environmental protection of operation scene.
Further, thickness dirt powder separation baffle sets up in the outside of fine dust recoverer blanking pipe, and thickness dirt powder separation baffle reduces from last down flow area gradually, and upper end a week of thickness dirt powder separation baffle is equipped with decurrent buckling, and the fine powder is exported from the dusty air outlet along the clearance of thickness dirt powder separation baffle side under the air current effect, and the coarse grain is kept off at the fine dust recoverer by thickness dirt powder separation baffle, falls into the dust falling mouth of bottom fine dust recoverer below.
Furthermore, a feeding baffle is arranged below the high-temperature feeding hole, one end of the feeding baffle is connected with the blanking channel, the other end of the feeding baffle is a suspended end, and a blanking gap is reserved between the suspended end and the material dust screen, so that the activated carbon falls down along the material dust screen, and the activated carbon is fully separated from dust.
Drawings
Fig. 1 is a schematic diagram of an implementable structure of the present invention.
FIG. 2 is a schematic diagram of a dust screen that can be implemented.
The device comprises an air blower 1, an induced draft fan 2, a material dust screen 3, a material dust screen handle 4, a coarse dust and fine dust separating baffle 5, a dust distributor 6, a high-temperature feed inlet 7, a blanking port 8, a blanking port 9, a blanking valve 10, a blanking valve 11, an air inlet 12, an air outlet 13, a feeding baffle 14, a storage bin 15, a dust bin 16, a blanking channel 17, a fine dust recoverer 18 and a fine dust recoverer blanking pipe 19.
Detailed Description
The present invention will be described in more detail with reference to the accompanying drawings and embodiments.
Referring to fig. 1, an active carbon regeneration material dust separation system comprises a blanking channel 17 and a dust bin 16, wherein the blanking channel 17 is obliquely arranged, the dust bin 16 is vertically arranged, a high-temperature feed port 7 is formed in the top end of the blanking channel 17, the blanking channel 17 is communicated with the dust bin 16, a material dust screen 3 is arranged at the communication position of the blanking channel 17 and the dust bin 16, the upper end of the material dust screen 3 is connected with the blanking channel 17, the lower end of the blanking channel 17 is communicated with a material bin 15, the lower end of the material bin 15 is communicated with a blanking port 8, and a blanking valve 10 is arranged between the lower end of the material bin 15 and the blanking port 8; a blanking channel 17 is arranged above the material dust screen 3, a dust bin 16 is arranged below the material dust screen 3, the lower end of the dust bin 16 is connected with a fine dust recoverer 18, the lower part of the fine dust recoverer 18 is provided with an air inlet 12, the air inlet 12 is communicated with an outlet of the air blower 1, the fine dust recoverer 18 is provided with a dust-containing air outlet 13, the dust-containing air outlet 13 is communicated with a primary air pipeline behind a coal mill of a power plant, the lower end of the fine dust recoverer 18 is connected with a dust falling valve 11, and the lower end of the dust falling valve 11 is provided with a dust falling port 9; a fine dust separating baffle 5 is arranged in the middle of the inner cavity of the fine dust recoverer 18, and a dust distributor 6 is arranged below the fine dust separating baffle 5; a fine dust collector blanking pipe 19 is arranged at the bottom end of the dust bin 16 and extends to the fine dust collector 18.
A feeding baffle 14 is arranged below the high-temperature feeding hole 7, one end of the feeding baffle 14 is connected with a blanking channel 17, the other end of the feeding baffle is a suspended end, and a blanking gap is reserved between the suspended end and the material dust screen 3, so that the activated carbon falls down along the material dust screen 3, and the activated carbon is fully separated from dust.
The material baffle 14 is made of a steel plate
An inlet of an outlet communicated with an induced draft fan 2 is formed in the blanking channel 17, the induced draft fan 2 enables the blanking channel 17 to generate negative pressure air flow, lifted dust in the blanking channel 17 is taken out, the outlet of the induced draft fan 2 is communicated with a rear primary air pipeline of a coal mill of a power plant, and air flow of the induced draft fan 2 and air flow of a dust-containing air outlet 13 are mixed and then enter the rear primary air pipeline of the coal mill of the power plant.
The thick and thin dust separating baffle 5 is arranged outside the blanking pipe 19 of the fine dust collector, the through flow area of the thick and thin dust separating baffle 5 is gradually reduced from top to bottom, and a circle of the upper end of the thick and thin dust separating baffle 5 is bent downwards.
The distance between the thick and thin dust separating baffle 5 and the outer side of the fine dust collector blanking pipe 19 is 10-20cm, and the distance between the position with the largest diameter of the thick and thin dust separating baffle 5 and the inner wall of the fine dust collector 18 is 5-30 cm.
As an alternative, the coarse-fine dust separating baffle 5 is connected to the fine-dust collector down pipe 19 by a transverse link, or the coarse-fine dust separating baffle 5 is connected to the side wall of the fine-dust collector 18 by a transverse link.
The dust distributor 6 comprises a plurality of partition plates which are arranged at equal intervals in the circumferential direction, namely, the partition plates equally divide a cylinder in which the partition plates are arranged into a plurality of equal parts; as an example: when the number of the partition plates is two, the partition plates are spaced by 180 degrees, and the dust distributor 6 divides the lower part of the fine dust recoverer 18 into two parts; when the number of the clapboards is three, the clapboards are spaced at 120 degrees, and the dust distributor 6 divides the lower part of the fine dust recoverer 18 into three parts; when the partition plates are four, the partition plates are spaced by 90 degrees, and the dust distributor 6 divides the lower part of the fine dust recoverer 18 into four parts; of course, the lower part of the equally divided fine dust collector 18 is an open space, and the dust distributor 6 can make the dust fall more uniformly.
The lower part of the fine dust recoverer 18 is funnel-shaped, the upper part is straight cylinder-shaped, and the lower part of the fine dust recoverer 18 is provided with at least two air inlets 12.
The angle between the axis of the blanking channel 17 and the axis of the dust bin 16 is an acute angle, and in the process that the activated carbon quickly rolls to the bin 15 through the blanking channel 17, dust falls to the dust bin 16 from the dust screen 3 under the action of vibration and wind blowing.
A screen can be arranged at the dust-containing air outlet 13, and the screen and the dust-containing air outlet 13 are correspondingly arranged one by one;
the top end of the thick and thin dust separating baffle 5 can be provided with a screen, the screen is in a circular ring shape, the screen can be connected with the top end of the thick and thin dust separating baffle 5 and can also be connected and installed through the inner wall of the fine dust recoverer 18, and the size of the screen is 4-12 meshes.
Referring to fig. 2, a material dust screen handle 4 is arranged at the upper end of the material dust screen 3, the material dust screen 3 is in a pull type, a material dust screen groove is arranged on the blanking channel 17, and the material dust screen 3 passes through the material dust screen groove and is installed and convenient to replace.
The inlet of the draught fan 2 is connected with the upper section of the blanking channel 17, and the outlet of the draught fan 2 is connected with the outlet pipeline of the dust-containing air outlet 13 and then goes to the primary air pipeline behind the coal mill of the power plant.
The technical process and the principle of the utility model are as follows:
novel high-efficient low temperature integration flue gas pollutant desorption technique is with the pollutant in the active carbon adsorption flue gas under the low temperature operating mode, and the active carbon after the absorption needs heating regeneration, but regeneration and the active carbon reuse after the cooling, the system draws and connects in the export after the active carbon high temperature regeneration.
Activated carbon regenerated at 250 +/-20 ℃ enters an activated carbon regeneration material dust separation system from a feed inlet 7, part of the activated carbon after feeding falls on a feeding baffle 14, a material dust screen 3 slides from the feeding baffle 14, the activated carbon screened by the material dust screen 3 falls through a blanking channel 17 and enters a storage bin 15, a blanking valve 10 is arranged at the lower end of the storage bin 15, and the material enters a subsequent cooling working section from a blanking port 8 through the blanking valve 10.
The screened dust enters a dust bin 16, the lower end of the dust bin 16 is connected with a fine dust recoverer 18, the dust falls into the fine dust recoverer 18 from the lower end of the dust bin 16, the dust is uniformly distributed and falls down through a dust distributor 6, air is blown in through an air inlet 12 through an air blower 1, the air containing coarse dust and fine dust is separated through a coarse dust and fine dust separating baffle 5, the coarse dust falls down, and the fine dust is blown out from a dust-containing air outlet 13.
The material can produce a large amount of raise dusts in the blanking passageway 17 blanking, and the entry of draught fan 2 links to each other with the upper segment of blanking passageway 17, and the export of draught fan 2 links to each other the back with dust-laden air outlet 13 outlet pipe, and the air duct once comes behind the power plant's coal pulverizer, together sends into the boiler burning.
Based on the activated carbon regeneration material dust separation method of the system, the activated carbon subjected to high-temperature pyrolysis is cooled and then is sent into the blanking channel 17, dust is separated from the activated carbon under the action of blanking vibration, the activated carbon enters the material bin 15, the dust enters the dust bin 16, and raised dust generated in the blanking process of the activated carbon is conveyed to a primary air pipeline behind a coal mill of a power plant from the blanking channel 17 by adopting air flow generated by the draught fan 2; the dust entering the dust bin 16 is subjected to coarse and fine separation, the fine dust is conveyed to a primary air pipeline behind a coal mill of a power plant, and is mixed with dust airflow of the draught fan 2 to enter a hearth boiler for combustion, so that the active carbon is not influenced by the dust, the active carbon is recycled, and meanwhile, the dust is recycled.
The lower part of the material dust screen 3 is connected with a dust bin 16, the lower end of the dust bin 16 is connected with a fine dust recoverer 18, the fine dust recoverer 18 comprises a dust-containing air outlet 13, a coarse dust and fine dust separating baffle 5, a dust distributor 6 and an air inlet 12, the lower end of the fine dust recoverer 18 is connected with a dust falling valve 11, and the lower end of the dust falling valve 11 is provided with a dust falling port 9.
An air inlet 12 of the fine dust recoverer 18 is connected with an outlet of the air blower 1, and a dust-containing air outlet 13 of the fine dust recoverer 18 is communicated with a primary air pipeline behind a coal mill of a power plant.
The inlet of the draught fan 2 is connected with the upper section of the blanking channel 17, and the outlet of the draught fan 2 is connected with the outlet pipeline of the dust-containing air outlet 13 and then goes to the primary air pipeline behind the coal mill of the power plant.
The utility model discloses effectively separate the active carbon material dirt after the high temperature regeneration, the material after the separation is gone to the cooling tower cooling, the high temperature dust after the separation, through air-blower and fine dust recoverer, directly send the high temperature fine dust to the coal pulverizer after the wind pipeline advance the stove burning, the raise dust of blanking in-process is sent the wind pipeline that once only after the coal pulverizer to advance the stove burning through the draught fan equally, the device simple structure, can effectively separate the dust powder that the active carbon produced at absorption and regeneration in-process, separation efficiency is high, the high temperature dust powder can reuse after the separation, energy saving and material saving, the clean environmental protection of operation scene.
Claims (9)
1. The active carbon regeneration material dust separation system is characterized by comprising a blanking channel (17) and a dust bin (16), wherein the blanking channel (17) is obliquely arranged, and the dust bin (16) is vertically arranged; the top end of the blanking channel (17) is provided with a high-temperature feeding hole (7), the blanking channel (17) is communicated with the dust bin (16), a dust screen (3) is arranged at the communication position of the blanking channel (17) and the dust bin (16), the lower end of the blanking channel (17) is communicated with the storage bin (15), and the dust screen (3) is arranged along the channel wall of the blanking channel (17); a fine dust recoverer (18) is arranged at the lower end of the dust bin (16), an air inlet (12) is formed in the lower portion of the fine dust recoverer (18), the air inlet (12) is communicated with an outlet of the air blower (1), a dust-containing air outlet (13) is formed in the fine dust recoverer (18), the dust-containing air outlet (13) is communicated with a rear primary air pipeline of a coal mill of a power plant, a dust falling valve (11) is arranged at the lower end of the fine dust recoverer (18), and a dust falling port (9) is formed in the lower end of the dust falling valve (11); a coarse dust and fine dust separating baffle (5) is arranged in the middle of the cavity of the fine dust recoverer (18); an outlet of the blanking channel (17) is communicated with an inlet of the induced draft fan (2), an outlet of the induced draft fan (2) is communicated with a rear primary air pipeline of a coal mill of a power plant, and the air inlet (12) faces to the center of the fine dust recoverer (18).
2. The active carbon regeneration material dust separation system according to claim 1, wherein a fine dust collector blanking pipe (19) is arranged at the bottom end of the dust bin (16) and extends to the fine dust collector (18), the fine dust collector blanking pipe (19) is provided with the fine dust separating baffle (5), the fine dust separating baffle (5) is arranged outside the fine dust collector blanking pipe (19), the flow area of the fine dust separating baffle (5) is gradually reduced from top to bottom, and the upper end of the fine dust separating baffle (5) is provided with a downward bend in a circle.
3. The activated carbon regeneration material dust separation system according to claim 1, wherein the distance between the thick and thin dust separation baffle (5) and the outer side of the fine dust collector blanking pipe (19) is 10-20cm, and the distance between the position where the diameter of the thick and thin dust separation baffle (5) is the largest and the inner wall of the fine dust collector (18) is 5-30 cm.
4. The activated carbon regeneration material dust separation system according to claim 1, wherein a dust distributor (6) is arranged below the coarse and fine dust separation baffle (5), the dust distributor (6) comprises vertical partition plates which are arranged at equal intervals in the vertical direction, and the number of the intervals is the same as that of the air inlets (12).
5. The system for separating the regenerated active carbon dust according to claim 1, wherein the dust-containing air outlets (13) are opened at the top end of the fine dust collector (18), and the number of the dust-containing air outlets (13) is the same as that of the air inlets (12).
6. The active carbon regeneration material dust separation system according to claim 1, wherein a screen is arranged at the dust outlet (13) or at the top end of the coarse and fine dust separation baffle (5), and the screen is 4-12 meshes;
the material dust screen (3) is a pluggable screen, and the specification of the material dust screen (3) is 8 meshes, 10 meshes, 12 meshes or 14 meshes.
7. The active carbon regeneration material dust separation system according to claim 1, wherein a feeding baffle (14) is arranged below the high-temperature feeding hole (7), one end of the feeding baffle (14) is connected with the blanking channel (17), the other end of the feeding baffle is a hanging end, and a blanking gap is reserved between the hanging end and the material dust screen (3).
8. The activated carbon regeneration dust separation system of claim 7, wherein the feed baffle (14) is a rigid plate.
9. The activated carbon regeneration material dust separation system according to claim 1, wherein the lower end of the storage bin (15) is communicated with the blanking port (8), and the blanking valve (10) is arranged between the lower end of the storage bin (15) and the blanking port (8).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202120634071.2U CN214718423U (en) | 2021-03-29 | 2021-03-29 | Activated carbon regeneration material dust separation system |
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| CN202120634071.2U CN214718423U (en) | 2021-03-29 | 2021-03-29 | Activated carbon regeneration material dust separation system |
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| CN214718423U true CN214718423U (en) | 2021-11-16 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112893137A (en) * | 2021-03-29 | 2021-06-04 | 中国华能集团清洁能源技术研究院有限公司 | Activated carbon regeneration material dust separation system and method |
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2021
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112893137A (en) * | 2021-03-29 | 2021-06-04 | 中国华能集团清洁能源技术研究院有限公司 | Activated carbon regeneration material dust separation system and method |
| CN112893137B (en) * | 2021-03-29 | 2024-03-01 | 中国华能集团清洁能源技术研究院有限公司 | System and method for separating regenerated active carbon dust |
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