CN217613998U - Semidry process absorption tower bottom ash discharging device with sweep function - Google Patents
Semidry process absorption tower bottom ash discharging device with sweep function Download PDFInfo
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- CN217613998U CN217613998U CN202221511799.7U CN202221511799U CN217613998U CN 217613998 U CN217613998 U CN 217613998U CN 202221511799 U CN202221511799 U CN 202221511799U CN 217613998 U CN217613998 U CN 217613998U
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Abstract
The lower part of an absorption tower is communicated with an inlet flue of the absorption tower, the lower part of the inlet flue of the absorption tower is communicated with a tower bottom ash hopper, the bottom of the tower bottom ash hopper is communicated with a bin pump through a first pneumatic gate valve and a pneumatic flow shutoff valve, and the bottom of the bin pump is respectively communicated with an ash warehouse and a compressed air pipeline through an ash conveying pneumatic gate valve and a bin pump air inlet valve group; the side part of the tower bottom ash bucket is communicated with a landing pipeline, and a second pneumatic gate valve and a heavy hammer type double-layer flap valve are arranged on the landing pipeline from top to bottom; the bottom of the inlet flue of the absorption tower and the peripheral surface of the tower bottom ash hopper are both provided with back-blowing nozzles which are communicated with a compressed air pipeline and are controlled by an electromagnetic valve; the utility model provides a raise dust problem when the easy deposition of import flue bottom and tower bottom ash bucket hardens problem and outer fortune ash, improved degree of automation, alleviateed the labour, reduced the fault point, reduced safe risk coefficient and operation and maintenance cost.
Description
Technical Field
The utility model relates to an atmosphere is administered the field, specifically is a semidry process absorption tower bottom ash discharging device with function sweeps.
Background
Circulating fluidized bed semidry process desulfurization system is improper in the operation personnel, the unstable phenomenon of bed and bed often can appear collapsing under the circumstances such as desulfurization draught fan stop using suddenly, the desulfurization ash can fall into absorption tower import flue bottom and tower bottom ash bucket in, if not sweep in time and make its raise, take away it gradually or in time discharge it through the ash discharging device at the bottom of the tower through the flue gas, can cause the unable normal discharge of desulfurization ash at the bottom of the tower, and then block up the import flue, finally cause the effect that boiler and desulfurization system can't operate.
Meanwhile, most of the existing absorption tower bottom ash discharging modes are a double-shaft ash discharging machine, a pneumatic gate valve and a heavy hammer type double-layer flap valve. The mechanical outward discharging mode is easy to break down, so that the ash discharging device is paralyzed, great safety risk and environmental pollution exist, and a great amount of labor force is needed to load the tower bottom desulfurized ash for outward transportation.
In order to solve the problems, the bottom ash discharging device with the blowing function for the semi-dry absorption tower is provided.
Disclosure of Invention
The utility model aims at providing a semi-dry process absorption tower bottom ash discharging device with sweep function has solved the problem that above-mentioned background art provided.
A tower bottom ash discharging device of a semi-dry absorption tower with a purging function comprises an absorption tower inlet flue, a tower bottom ash bucket, a compressed air pipeline, an electromagnetic valve, a back-blowing nozzle, a first pneumatic gate valve, a second pneumatic gate valve, a pneumatic flow shutoff valve, a heavy hammer type double-layer gate valve, a bin pump, an ash conveying pneumatic gate valve, a bin pump air inlet valve group, an absorption tower and a floor pipeline;
the lower part of the absorption tower is communicated with an inlet flue of the absorption tower, the lower part of the inlet flue of the absorption tower is communicated with a tower bottom ash bucket, the bottom of the tower bottom ash bucket is communicated with a bin pump through a first pneumatic gate valve and a pneumatic flow shutoff valve, the bottom of the bin pump is communicated with an ash warehouse through an ash conveying pneumatic gate valve, and the bottom of the bin pump is communicated with a compressed air pipeline through a bin pump air inlet valve group;
the side part of the tower bottom ash bucket is communicated with a landing pipeline, and a second pneumatic gate valve and a heavy hammer type double-layer flap valve are arranged on the landing pipeline from top to bottom;
the bottom of the inlet flue of the absorption tower and the circumferential surface of the tower bottom ash hopper are both provided with back-blowing nozzles, the back-blowing nozzles are communicated with a compressed air pipeline, and the compressed air pipeline is provided with an electromagnetic valve for controlling the back-blowing nozzles; the direction of a back-blowing nozzle arranged at the bottom of the inlet flue faces the ash bucket at the bottom of the tower, and the direction of a back-blowing nozzle arranged on the periphery of the ash bucket at the bottom of the tower faces a discharge opening of the ash bucket in the tower.
The back-blowing nozzles are uniformly distributed on the inlet flue of the absorption tower and the bottom ash bucket of the tower, and the interval between every two adjacent back-blowing nozzles is 400mm.
The absorption tower inlet flue and the tower bottom ash hopper are made of carbon steel, and the compressed air pipeline is made of 20# steel.
The utility model discloses a working process and principle:
when the utility model is used, when the desulfurization ash falls into the bottom of the inlet flue of the absorption tower and the ash bucket at the bottom of the tower, the electromagnetic valves of the inlet flue and the ash bucket at the bottom of the tower are opened, and the compressed air sprayed out by the compressed air pipeline and the back-blowing nozzle carries out back-blowing on the desulfurization ash, so that the desulfurization ash has good fluidity; when the desulfurized ash level in the ash bucket at the bottom of the tower reaches the set value, the pneumatic gate valve and the pneumatic flow shutoff valve are automatically opened to discharge the desulfurized ash into the bin pump, and after the discharging time is reached, the pneumatic gate valve and the pneumatic flow shutoff valve are automatically closed to stop discharging the ash to the bin pump. The bin pump air inlet valve group and the ash conveying pneumatic gate valve are sequentially and automatically opened to convey the desulfurized ash into the ash bin through the ash conveying pipe; and when the pressure in the bin pump reaches a set lower limit, closing the air inlet valve set and the ash conveying pneumatic gate valve of the bin pump, and finishing ash conveying.
Consider that storehouse pump, pneumatic push-pull valve, pneumatic flow shut-off valve, storehouse pump valve unit and defeated grey pneumatic gate valve probably break down and can not in time handle, the utility model discloses still set up emergent outer row of spare, mainly be pneumatic push-pull valve, the double-deck flap valve of weight formula and the pipeline that falls to the ground, in time open pneumatic push-pull valve and the double-deck flap valve of weight formula when meetting emergent accident and unload grey processing.
The blowing function of the desulfurized ash is mainly realized by a compressed air pipeline, an electromagnetic valve and a back-blowing nozzle; the back flushing nozzles are uniformly distributed at the bottom of the inlet flue and the tower bottom ash bucket, the nozzle directions of the back flushing nozzles arranged at the bottom of the inlet flue face the tower bottom ash bucket, so that the desulfurized ash at the bottom of the inlet flue can smoothly flow to the tower bottom ash bucket, the nozzle directions of the back flushing nozzles arranged on the peripheral surface of the tower bottom ash bucket face the discharge opening of the tower bottom ash bucket, and the aim of enabling the desulfurized ash of the tower bottom ash bucket to smoothly flow to the discharge opening of the tower bottom ash bucket is achieved; the back-blowing nozzles are uniformly arranged at intervals of 400mm.
The back-blowing nozzle is composed of
One end of the seamless steel pipe is welded by a steel plate with the thickness of 2mm, an opening with the thickness of 2mm and the depth of 5mm is cut on the pipe, and the direction of a nozzle is arranged according to the requirements; the electromagnetic valves are automatically and sequentially opened at regular time or manually opened according to actual conditions, and after the set running time is up, the electromagnetic valves are automatically and sequentially closed or manually closed; when the electromagnetic valve is opened, 5-7 kg of compressed air is ejected through a back-blowing nozzle controlled by the electromagnetic valve, and the ejected compressed air back-blows the desulfurized ash to make the desulfurized ash flow so as to prevent the desulfurized ash from hardening.
The utility model has the advantages that:
the utility model provides an easy deposition of ash of import flue bottom and tower bottom ash bucket harden problem, the raise dust problem when having solved traditional machinery simultaneously and unloading the ash device outward and transport the ash has improved whole semidry desulfurization system's degree of automation, has alleviateed the labour, has reduced the fault point, has reduced safe risk coefficient and operation and maintenance cost.
Drawings
Fig. 1 is a schematic structural diagram of the utility model.
Wherein: 1-an inlet flue of an absorption tower; 2-tower bottom ash bucket; 3-compressed air pipeline; 4-an electromagnetic valve; 5-a back-blowing nozzle; 61-a first pneumatic gate valve, 62-a second pneumatic gate valve and 7-a pneumatic flow shutoff valve; 8-weight hammer type double-layer flap valve; 9-bin pump; 10-ash conveying pneumatic gate valve; 11-a bin pump air inlet valve group; 12-an absorption tower; 13-floor pipe.
Detailed Description
As shown in fig. 1, the semidry absorption tower bottom ash discharging device with purging function comprises an absorption tower inlet flue 1, a tower bottom ash bucket 2, a compressed air pipeline 3, an electromagnetic valve 4, a back-blowing nozzle 5, a first pneumatic gate valve 61, a second pneumatic gate valve 62, a pneumatic flow shutoff valve 7, a heavy hammer type double-layer gate valve 8, a bin pump 9, an ash conveying pneumatic gate valve 10, a bin pump air inlet valve group 11, an absorption tower 12 and a landing pipeline 13;
the lower part of an absorption tower 12 is communicated with an inlet flue 1 of the absorption tower, the lower part of the inlet flue 1 of the absorption tower is communicated with a tower bottom ash bucket 2, the bottom of the tower bottom ash bucket 2 is communicated with a bin pump 9 through a first pneumatic gate valve 61 and a pneumatic flow shutoff valve 7, the bottom of the bin pump 9 is communicated with an ash storehouse through an ash conveying pneumatic gate valve 10, and the bottom of the bin pump 9 is communicated with a compressed air pipeline 3 through a bin pump air inlet valve group 11;
the side part of the tower bottom ash bucket 2 is communicated with a landing pipeline 13, and the landing pipeline 13 is provided with a second pneumatic gate valve 62 and a heavy hammer type double-layer flap valve 8 from top to bottom;
the bottom of an inlet flue 1 of the absorption tower and the circumferential surface of a tower bottom ash bucket 2 are both provided with a back-blowing nozzle 5, the back-blowing nozzle 5 is communicated with a compressed air pipeline 3, and the compressed air pipeline 3 is provided with an electromagnetic valve 4 for controlling the back-blowing nozzle 5; the spout direction of a back-blowing nozzle 5 arranged at the bottom of the inlet flue 1 faces the tower bottom ash bucket 2, and the spout direction of a back-blowing nozzle 5 arranged on the circumferential surface of the tower bottom ash bucket 2 faces the discharge opening of the ash bucket 2 in the tower.
The back-blowing nozzles 5 are uniformly distributed on the inlet flue 1 of the absorption tower and the ash hopper 2 at the bottom of the tower, and the interval between the adjacent back-blowing nozzles 5 is 400mm.
The absorption tower inlet flue 1 and the tower bottom ash hopper 2 are made of carbon steel, and the compressed air pipeline 3 is made of 20# steel.
The utility model discloses a working process and principle:
when the utility model is used, when the desulfurization ash falls into the bottom of the inlet flue 1 of the absorption tower and the tower bottom ash bucket 2, the electromagnetic valve 4 of the inlet flue 1 and the tower bottom ash bucket 2 is opened, and the compressed air sprayed out by the compressed air pipeline 3 and the back-blowing nozzle 5 carries out back-blowing on the desulfurization ash, so that the desulfurization ash has good fluidity; when the material level of the desulfurized ash in the ash bucket 2 at the bottom of the tower reaches the set value, the pneumatic gate valve 6 and the pneumatic flow shutoff valve 7 are automatically opened to discharge the desulfurized ash into the bin pump 9, and after the discharging time is reached, the pneumatic gate valve 6 and the pneumatic flow shutoff valve 7 are automatically closed to stop discharging the ash from the bin pump 9. Automatically opening a bin pump air inlet valve group 11 and an ash conveying pneumatic gate valve 10 in sequence to convey the desulfurized ash into an ash storehouse through an ash conveying pipe; and when the pressure in the bin pump 9 reaches a set lower limit, closing the bin pump air inlet valve group 11 and the ash conveying pneumatic gate valve 10, and finishing ash conveying.
Consider that 9, pneumatic gate valve 6, pneumatic flow shut-off valve 7, storehouse pump intake valves 11 and defeated grey pneumatic gate valve 10 probably break down and can not in time handle, the utility model discloses still set up emergent outer row spare, mainly be pneumatic gate valve 6, the double-deck flap valve 8 of weight formula and pipeline 13 that falls to the ground, in time open pneumatic gate valve 6 and the double-deck flap valve 8 of weight formula when meetting emergent accident and unload grey processing.
The blowing function of the desulfurized ash is mainly realized by a compressed air pipeline 3, an electromagnetic valve 4 and a back-blowing nozzle 5; the bottom of the inlet flue 1 and the bottom ash bucket 2 are uniformly provided with back-blowing nozzles 5, the nozzle directions of the back-blowing nozzles 5 arranged at the bottom of the inlet flue 1 face the bottom ash bucket 2 so as to enable the desulfurized ash at the bottom of the inlet flue 1 to smoothly flow to the bottom ash bucket 2, the nozzle directions of the back-blowing nozzles 5 arranged on the peripheral surface of the bottom ash bucket 2 face the discharge opening of the ash bucket 2 in the tower so as to enable the desulfurized ash in the bottom ash bucket 2 to smoothly flow to the discharge opening of the bottom ash bucket 2; the back-blowing nozzles 5 are uniformly arranged at intervals of 400mm.
The blowback nozzle 5 is composed of
One end of the seamless steel pipe is welded by a steel plate with the thickness of 2mm, an opening with the thickness of 2mm and the depth of 5mm is cut on the pipe, and the direction of the nozzle is arranged according to the requirements; the electromagnetic valves 4 are automatically and sequentially opened at regular time or manually opened according to actual conditions, and after the set running time is up, the electromagnetic valves 4 are automatically and sequentially closed or manually closed. When the electromagnetic valve 4 is opened, 5-7 kilograms of compressed air is sprayed out through the back blowing nozzle 5 controlled by the electromagnetic valve 4, and the sprayed compressed air back blows the desulfurized ash to make the desulfurized ash flow so as to prevent the desulfurized ash from hardening.
Claims (4)
1. The utility model provides a semidry process absorption tower bottom ash discharging device with sweep function which characterized in that: the device comprises an absorption tower inlet flue (1), a tower bottom ash hopper (2), a compressed air pipeline (3), an electromagnetic valve (4), a back-blowing nozzle (5), a first pneumatic gate valve (61), a second pneumatic gate valve (62), a pneumatic flow shutoff valve (7), a heavy hammer type double-layer gate valve (8), a bin pump (9), an ash conveying pneumatic gate valve (10), a bin pump air inlet valve group (11), an absorption tower (12) and a floor pipeline (13);
the lower part of the absorption tower (12) is communicated with an inlet flue (1) of the absorption tower, the lower part of the inlet flue (1) of the absorption tower is communicated with a tower bottom ash bucket (2), the bottom of the tower bottom ash bucket (2) is communicated with a bin pump (9) through a first pneumatic gate valve (61) and a pneumatic flow shutoff valve (7), the bottom of the bin pump (9) is communicated with an ash warehouse through an ash conveying pneumatic gate valve (10), and the bottom of the bin pump (9) is communicated with a compressed air pipeline (3) through a bin pump air inlet valve group (11);
the side part of the tower bottom ash bucket (2) is communicated with a landing pipeline (13), and a second pneumatic gate valve (62) and a heavy hammer type double-layer flap valve (8) are arranged on the landing pipeline (13) from top to bottom;
the bottom of an inlet flue (1) of the absorption tower and the peripheral surface of a tower bottom ash hopper (2) are both provided with back-blowing nozzles (5), the back-blowing nozzles (5) are communicated with a compressed air pipeline (3), and the compressed air pipeline (3) is provided with an electromagnetic valve (4) for controlling the back-blowing nozzles (5); the spout direction of a back-blowing nozzle (5) arranged at the bottom of the inlet flue (1) faces to the tower bottom ash bucket (2), and the spout direction of the back-blowing nozzle (5) arranged on the periphery of the tower bottom ash bucket (2) faces to the discharge opening of the ash bucket (2) in the tower.
2. The bottom ash discharging device with the blowing function for the semi-dry absorption tower as claimed in claim 1, wherein: the back-blowing nozzles (5) are uniformly distributed on the inlet flue (1) of the absorption tower and the tower bottom ash bucket (2).
3. The bottom ash discharging device with the blowing function for the semi-dry absorption tower as claimed in claim 2, wherein: the interval between the adjacent back blowing nozzles (5) is 400mm.
4. The bottom ash discharging device with the purging function for the semidry absorption tower as claimed in claim 1, wherein: the absorption tower inlet flue (1) and the tower bottom ash hopper (2) are made of carbon steel, and the compressed air pipeline (3) is made of 20# steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221511799.7U CN217613998U (en) | 2022-06-17 | 2022-06-17 | Semidry process absorption tower bottom ash discharging device with sweep function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221511799.7U CN217613998U (en) | 2022-06-17 | 2022-06-17 | Semidry process absorption tower bottom ash discharging device with sweep function |
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| Publication Number | Publication Date |
|---|---|
| CN217613998U true CN217613998U (en) | 2022-10-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221511799.7U Active CN217613998U (en) | 2022-06-17 | 2022-06-17 | Semidry process absorption tower bottom ash discharging device with sweep function |
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| Country | Link |
|---|---|
| CN (1) | CN217613998U (en) |
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2022
- 2022-06-17 CN CN202221511799.7U patent/CN217613998U/en active Active
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