CN209985159U - Device for removing mercury by spraying adsorbent in coal-fired flue gas - Google Patents
Device for removing mercury by spraying adsorbent in coal-fired flue gas Download PDFInfo
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- CN209985159U CN209985159U CN201920124453.3U CN201920124453U CN209985159U CN 209985159 U CN209985159 U CN 209985159U CN 201920124453 U CN201920124453 U CN 201920124453U CN 209985159 U CN209985159 U CN 209985159U
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Abstract
The utility model belongs to coal-fired flue gas filters the field, especially a sorbent sprays demercuration device in coal-fired flue gas. The demercuration device includes: a stock bin system: the device is used for containing the adsorbent and providing the adsorbent for the injection demercuration; sorbent delivery injection system: the system is used for conveying and spraying the adsorbent of the storage bin system into the flue to adsorb mercury in the coal-fired flue gas; adsorbent recovery system: the adsorbent is used for recovering the adsorbent and is recycled after treatment; the vibration system comprises a vibration gun I and a vibration gun II, wherein the vibration gun I and the vibration gun II are attached to different positions of the conveying pipeline and used for enabling the conveying pipeline to vibrate. The application provides a demercuration device is through setting up a plurality of branch pipe structures at the pipeline end to at the trompil all around of being in charge of, the adsorbent sprays into the flue through the trompil of being in charge of, thereby can realize the even injection of adsorbent in the flue.
Description
Technical Field
The utility model belongs to coal-fired flue gas filters the field, especially a sorbent sprays demercuration device in coal-fired flue gas.
Background
Coal-fired flue gas can discharge a large amount of harmful gases and heavy metal pollution, and mercury pollution is the first place in heavy metal pollution. Mercury has toxicity, volatility, biological enrichment and the like, and has certain influence on human life and environment. The mercury removal technology in flue gas after combustion is the most widely researched and mature mercury control technology at present, and is beneficial to the cooperative emission reduction of mercury. The technology for removing mercury from flue gas after combustion mainly comprises three aspects of the existing flue gas pollution control equipment of a coal-fired power plant, a mercury removal adsorbent and a combined removal technology of various pollutants. The solid adsorbent injection demercuration is a coal-fired power plant flue gas demercuration technology with great application prospect, and the development of a cheap and efficient demercuration adsorbent is the key of industrial application of the technology.
At present, the adsorbent can not be uniformly sprayed by a large part of the existing adsorbent spraying device, and meanwhile, the adsorbent sprayed into a flue is mixed with dust, so that the adsorbent in the large part is not completely adsorbed, and the waste is caused. In addition, in the existing adsorbent injection device, the adsorbent is easily adhered in the injection pipeline to cause blockage. The above problems all affect the efficiency and safety of the sorbent injection demercuration device.
SUMMERY OF THE UTILITY MODEL
The technical problem solved by the utility model is to provide an adsorbent sprays demercuration device in coal-fired flue gas.
Realize the utility model discloses the technical solution of purpose does:
a sorbent injection demercuration apparatus in coal-fired flue gas, the demercuration apparatus comprising:
a stock bin system: the device is used for containing the adsorbent and providing the adsorbent for the injection demercuration;
sorbent delivery injection system: the system is used for conveying and spraying the adsorbent of the storage bin system into the flue to adsorb mercury in the coal-fired flue gas;
adsorbent recovery system: used for recycling the adsorbent and recycled after treatment.
Further, the bin system comprises a new bin and a mixing bin.
Further, the adsorbent conveying and spraying system comprises a fan, a conveying pipeline and a plurality of conveying branch pipes arranged at the tail end of the conveying pipeline;
the conveying branch pipe is cylindrical, a plurality of through holes are formed in the cylindrical outer wall of the conveying branch pipe, the axial direction of the conveying branch pipe is perpendicular to the flowing direction of flue gas, and the conveying branch pipes are arranged at the upstream, the midstream and the downstream of the flue respectively;
the fan sets up in one side of feed bin system, and the fan sprays the adsorbent and gets into in the pipeline.
Furthermore, a plurality of branch pipes are carried including carrying branch pipe I, carry branch pipe II and carry branch pipe III.
Further, carry and be in charge of I, carry and be in charge of II and carry the diameter of the through-hole on the III pipe of being 0.5 ~ 1 cm.
Further, adsorbent recovery system includes dust collector, storage silo, the mixing bunker is connected through the delivery chute to the storage silo lower part, dust collector sets up the end at the flue for collect the dust, withdraw the adsorbent, the adsorbent after retrieving sends into mixing bunker through the delivery chute.
Furthermore, the inclination of the conveying chute is 20-30 degrees from the horizontal plane.
Further, the device still includes vibrations system, vibrations system is including vibrations rifle I and vibrations rifle II, vibrations rifle I and vibrations rifle II attach in pipeline's different positions for make pipeline vibrations.
Furthermore, the vibration frequency of the vibration gun I and the vibration gun II is between 350Hz and 500 Hz.
Furthermore, the adsorbent is one or more of activated carbon, biomass coke and non-carbon-based adsorbents, and the particle diameter of the adsorbent powder is less than 100 microns.
Compared with the prior art, the utility model, it is showing the advantage:
(1) the application provides a demercuration device is through setting up a plurality of branch pipe structures at the pipeline end to at the trompil all around of being in charge of, the adsorbent sprays into the flue through the trompil of being in charge of, thereby can realize the even injection of adsorbent in the flue.
(2) The application provides a demercuration device is through setting up the dust collector to set up the storage silo in dust collector below, can retrieve the adsorbent in the flue, and through carrying in the chute reentrant mixing bunker, realize the cyclic use of adsorbent.
(3) The application provides a demercuration device through a plurality of vibrations guns of installation on pipeline, makes the adsorbent can not the adhesion in pipeline through the vibrations of vibrations rifle, causes the jam of pipeline.
The present invention will be described in further detail with reference to the accompanying drawings.
Drawings
FIG. 1 is a schematic structural view of a demercuration device of the present application.
1-flue, 2-dust collector, 3-conveying chute, 4-mixing bunker, 5-fan, 6-conveying pipeline, 7-vibration gun I, 8-vibration gun II, 9-new bunker, 10-storage bunker, 11-conveying branch pipe I, 12-conveying branch pipe II, 13-conveying branch pipe III.
Detailed Description
To the adsorbent that exists among the prior art spray inhomogeneous, bond the pipeline easily, dust and adsorbent mix extravagant scheduling problem, provide an adsorbent and spray demercuration device, make adsorbent spray desorption efficiency improve, the adsorbent of injection can be at the inside adsorbent of flue evenly distributed to can not bond the pipeline of carrying the adsorbent, can circulate the secondary simultaneously and be suitable for the adsorbent. The device can study the mechanism of the adsorbent injection demercuration in a laboratory and can remove the mercury in an actual power station, and the device and the method have good removing efficiency and simple and economic system equipment.
The utility model discloses a sorbent sprays demercuration device in coal-fired flue gas. The device comprises a dust removing system, a storage bin system, an adsorbent conveying system, an adsorbent circulating system and a vibration gun system. The device for spraying and removing mercury of the adsorbent in the coal-fired flue gas solves the problem of uneven spraying of the adsorbent in the flue through the branched structure at the front end of the conveying pipeline; the problem of waste after the adsorbent and the dust are mixed is solved through a circulating system of the adsorbent; the problem that the adsorbent is easily adhered to a conveying pipeline is solved through the vibration gun system.
With reference to fig. 1, the utility model provides an adsorbent injection apparatus in coal-fired flue gas, the device include that the dust gets rid of the system, feed bin system, adsorbent conveying system, adsorbent circulation system, vibrations rifle system.
Wherein the dust removal system is composed of: a dust collector 2; the storage bin system comprises the following parts: a mixing bin 4 and a new bin 9; the adsorbent circulating system consists of the following parts: a storage bin 10, a delivery chute 3; the sorbent delivery system consists of: a fan 5, a conveying pipeline 6, conveying branch pipes 11, 12 and 13; the vibrating gun system is composed of the following parts: a shaker gun 7 and a shaker gun 8.
The dust collector 2 is attached to the flue wall 1, the dust collector 1 is connected with the storage bin 10 in a downward mode, and the storage bin 10 injects the adsorbent into the mixing bin 4 through the conveying chute 3. Mixing bunker 4 links to each other with fan 5, and during fan 5 sprayed the adsorbent and got into pipeline 6, vibrations rifle 7 and vibrations rifle 8 attached on pipeline 6, prevent the adsorbent adhesion 6 on pipeline through the vibration of certain frequency. The end of the transport duct 6 forms a diverging duct 11, 12, 13 through which sorbent is injected into the flue. New sorbent can be continuously added to the mixing silo 4 through the new silo 9.
Preferably, the adsorbent powder particles are less than 100 microns in diameter
Preferably, the inclination of the conveying chute 3 is 20 degrees
Preferably, the vibration frequency of the vibration guns 7 and 8 is 400Hz
Preferably, the diameter of the opening on the conveying branch pipe is 0.5cm
The utility model discloses the device can carry out the desorption of mercury again in actual power station at the mechanism that laboratory research adsorbent sprays demercuration, and the device and method desorption are efficient, and the simple economy of system's equipment.
Claims (10)
1. A coal-fired flue gas adsorbent injection demercuration device is characterized by comprising:
a stock bin system: the device is used for containing the adsorbent and providing the adsorbent for the injection demercuration;
sorbent delivery injection system: the system is used for conveying and spraying the adsorbent of the storage bin system into the flue to adsorb mercury in the coal-fired flue gas;
adsorbent recovery system: used for recycling the adsorbent and recycled after treatment.
2. The apparatus according to claim 1, characterized in that the silo system comprises a fresh silo (9) and a mixing silo (4).
3. The device according to claim 2, characterized in that the sorbent delivery injection system comprises a fan (5), a delivery duct (6) and a plurality of delivery branches arranged at the end of the delivery duct (6);
the conveying branch pipe is cylindrical, a plurality of through holes are formed in the cylindrical outer wall of the conveying branch pipe, the axial direction of the conveying branch pipe is perpendicular to the flowing direction of flue gas, and the conveying branch pipes are arranged at the upstream, the midstream and the downstream of the flue (1) respectively;
the fan (5) is arranged on one side of the storage bin system, and the fan (5) sprays the adsorbent into the conveying pipeline (6).
4. The apparatus of claim 3, wherein the plurality of delivery manifolds includes delivery manifold I (11), delivery manifold II (12), and delivery manifold III (13).
5. The device according to claim 4, characterized in that the diameter of the through holes in the conveying branch pipe I (11), the conveying branch pipe II (12) and the conveying branch pipe III (13) is 0.5-1 cm.
6. The apparatus according to claim 5, characterized in that the sorbent recovery system comprises a dust collector (2), a storage bin (10), the lower part of the storage bin (10) is connected with the mixing bin (4) through a conveying chute (3), the dust collector (2) is arranged at the end of the flue (1) and is used for collecting dust and recovering the sorbent, and the recycled sorbent is sent into the mixing bin (4) through the conveying chute (3).
7. A device according to claim 6, characterised in that the inclination of the conveying chute (3) is 20-30 ° from the horizontal.
8. The device according to claim 7, characterized in that the device further comprises a vibration system, the vibration system comprising a vibration gun I (7) and a vibration gun II (8), the vibration gun I (7) and the vibration gun II (8) being attached to the conveying pipe (6) at different positions for vibrating the conveying pipe (6).
9. The apparatus of claim 8, wherein the vibration frequency of the jarring gun i (7) and the jarring gun ii (8) is between 350Hz and 500 Hz.
10. The device of claim 1, wherein the sorbent powder particles are less than 100 microns in diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920124453.3U CN209985159U (en) | 2019-01-23 | 2019-01-23 | Device for removing mercury by spraying adsorbent in coal-fired flue gas |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920124453.3U CN209985159U (en) | 2019-01-23 | 2019-01-23 | Device for removing mercury by spraying adsorbent in coal-fired flue gas |
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| CN209985159U true CN209985159U (en) | 2020-01-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109647133A (en) * | 2019-01-23 | 2019-04-19 | 南京理工大学 | Sorbent injection mercury removal device in a kind of coal-fired flue-gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109647133A (en) * | 2019-01-23 | 2019-04-19 | 南京理工大学 | Sorbent injection mercury removal device in a kind of coal-fired flue-gas |
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