CN219615097U - Thermal power plant centrifugal dust removal device - Google Patents

Abstract

The utility model discloses a centrifugal dedusting device for a thermal power plant electric unit in the related technical field of environmental protection equipment, which comprises a centrifugal dedusting cabin, a main frame and a spraying dedusting cabin. The lower end of the centrifugal dedusting cabin is provided with a centrifugal slag discharge port. The lower end of the spray dedusting cabin is provided with a spray slag outlet, and the centrifugal slag outlet and the spray slag outlet are equipped with telescopic dustproof covers, and the upper end of the centrifugal dedusting cabin is connected to the The spray inlet pipes of the spray dedusting cabins are connected. The dust removal device of the utility model is equipped with a centrifugal dust removal cabin and a spray dust removal cabin. Through two-stage dust removal treatment, the flue gas treatment effect can be effectively improved. After two-stage treatment, the emission standard detector is used for detection and judgment. , the normal discharge that meets the discharge standard, and the non-compliance with the discharge standard are circulated to the centrifugal dust chamber for secondary treatment to ensure that the exhaust gas meets the standard. The telescopic dust cover can prevent the smoke and dust generated during the slag discharge process from being discharged into the air and cause secondary treatment. Pollution, safety and environmental protection.

Description

Thermal power plant centrifugal dust removal device

technical field

The utility model belongs to the related technical field of environmental protection equipment, and in particular relates to a centrifugal dedusting device for an electric unit in a thermal power plant.

Background technique

Coal-fired thermal power plants are an important source of pollution, and their pollutants are mainly sulfur dioxide. In order to reduce the content of sulfur dioxide in the flue gas, thermal power plants use limestone-gypsum wet desulfurization, and the flue gas after wet desulfurization also contains a large amount of The gypsum slurry and Pm10-Pm2.5 particles, after the flue gas leaves the chimney, under certain conditions, "gypsum rain" and particle haze are formed. In the past, the flue gas was heated to increase the lift of the flue gas, so that the flue gas entered the upper atmosphere And dissipate, this method cannot fundamentally avoid the discharge of acidic particles, and the heat exchanger is easily corroded and damaged to block the flue. After contacting the blades, under the action of centrifugal force, it is thrown radially along the centrifugal fan and hits on the box wall, and then falls along the box wall to be collected. In addition, microwave vibrators and plasma purifiers are used to prevent the box wall from sticking and clogging, and eliminate air pollution. However, since plasma is an interdisciplinary subject including discharge physics, discharge chemistry, chemical reaction engineering and vacuum technology, there are very few units that can maturely master this technology, resulting in The cost of the plasma purifier is very high. At the same time, the flue gas that has been dedusted has not been tested and discharged directly, and some untreated flue gas is mixed with it. Direct emission will also pollute the environment.

In view of this, the utility model is proposed.

Utility model content

The technical problem to be solved by the utility model is to overcome the deficiencies in the prior art and provide a centrifugal dedusting device for thermal power plant motor units. In order to solve the above technical problems, the basic idea of the technical solution adopted by the utility model is:

The centrifugal dedusting device of the electric unit of the thermal power plant comprises a centrifugal dedusting cabin, a main frame and a spraying dedusting cabin. The spray slag outlet, the centrifugal slag outlet and the spray slag outlet are equipped with telescopic dust-proof covers, and the upper end of the centrifugal dedusting cabin is connected to the spraying of the spray dedusting cabin through a pipeline. The air pipes are connected, and the top exhaust port of the spray dedusting chamber is connected with the emission compliance detector. The gas is discharged directly if it reaches the standard, and the gas that is not up to the standard is re-supplied into the centrifugal dedusting chamber through the circulation pipe for secondary treatment.

As a further solution of the utility model: the centrifugal dedusting cabin and the spray dedusting cabin are fixedly installed on the main frame, and a centrifugal pump is fixedly installed on the main frame on the side of the centrifugal dedusting cabin An air filter is fixedly installed on the side of the centrifugal pump, and the air is supplied to the centrifugal pump after being filtered by the air filter, so as to prevent impurities in the air from affecting the centrifugal pump.

As a further solution of the present invention: the upper part of the centrifugal dedusting cabin is provided with a centrifugal power joint and a soot gas joint on the side close to the centrifugal pump, the centrifugal power joint is connected to the centrifugal pump through a pipeline, and the soot The gas joint is connected with the smoke gas inlet pipe, and the smoke gas inlet pipe is used to supply the smoke gas to be processed into the centrifugal dedusting chamber.

As a further solution of the present invention: an exhaust pipe guide sleeve is inserted on the top of the centrifugal dedusting chamber, and under the joint action of the centrifugal pump and the exhaust pipe guide sleeve, The dust gas in the dust cabin spirals downward, the solid particles in the flue gas are discharged from the centrifugal slag outlet, and the gas is supplied to the spray dedusting cabin from the guide sleeve of the exhaust pipe through the pipeline. In the process, spray slag removal treatment is carried out.

As a further solution of the utility model: a liquid storage tank is arranged on the side of the spray dedusting cabin away from the centrifugal dedusting cabin, and a water pump is fixedly installed above the liquid storage tank, and the water pump passes through the water supply pipe It is connected with the circulating water spray pipe in the spraying dedusting cabin, and the circulating water spraying pipe is fixed on the inner side wall of the spraying dedusting cabin in a ring shape through the pipe fixing port, and the circulating water spraying pipe Located above the spray inlet pipe, it is convenient for spray settlement.

As a further solution of the utility model: a spray head is installed on the circulating water spray pipe, the circulating pipe is connected with the smoke gas inlet pipe, a valve is installed on the circulating pipe, and the centrifugal slag discharge A first slag collection box is provided below the spray port, a second slag collection box is provided below the spray slag outlet, and the first slag collection box and the second slag collection box are used to collect The slag at the separation place after dedusting treatment.

After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art.

The dust removal device of the utility model is provided with a centrifugal dust removal cabin and a spray dust removal cabin. Through two-stage dust removal treatment, the flue gas treatment effect can be effectively improved. After the two-stage treatment, the emission standard detector is used for detection and judgment. , the normal discharge that meets the discharge standard, and the non-compliance with the discharge standard are circulated to the centrifugal dedusting chamber for secondary treatment to ensure that the discharge gas meets the standard.

Both the centrifugal slag discharge port and the spray slag discharge port of the utility model are equipped with telescopic dust-proof covers to prevent the smoke and dust generated during the slag discharge process from being discharged into the air holes to cause secondary pollution, with good protection performance, safety and environmental protection.

Below in conjunction with accompanying drawing, the specific embodiment of the utility model is described in further detail.

Description of drawings

The accompanying drawings, as a part of this application, are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, but do not constitute improper limitations to the utility model. Apparently, the drawings in the following description are only some embodiments, and those skilled in the art can obtain other drawings according to these drawings without creative efforts. In the attached picture:

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the front view of the utility model;

Fig. 3 is a schematic view inside the centrifugal dedusting cabin of the present invention;

Fig. 4 is a schematic diagram of the interior of the spray dedusting cabin of the present invention.

In the figure: 1. Main frame; 2. Centrifugal dust removal cabin; 3. Spray dust removal cabin; 4. Centrifugal pump; 5. Air filter; 6. Circulation pipe; 7. Valve; 8. Smoke gas intake pipe; 9. Centrifugal power joint; 10. Smoke gas joint; 11. Emission compliance detector; 12. Liquid storage tank; 13. Water pump; 14. First slag collection box; 15. Centrifugal slag discharge port; 17. Second slag collection box; 18. Spray slag outlet; 19. Water supply pipe; 20. Exhaust pipe guide sleeve; 21. Circulating water spray pipe; 22. Spray head; trachea.

It should be noted that these drawings and text descriptions are not intended to limit the scope of the invention in any way, but illustrate the concept of the invention for those skilled in the art by referring to specific embodiments.

Detailed ways

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. The following embodiments are used for illustration The utility model, but not used to limit the scope of the utility model.

As shown in Figures 1 to 4, the centrifugal dedusting device of the thermal power plant electric unit includes a centrifugal dedusting cabin 2, a main frame 1 and a spray dedusting cabin 3, and the lower end of the centrifugal dedusting cabin 2 is provided with a centrifugal slag discharge port 15 , the lower end of the spray dedusting cabin 3 is provided with a spray slag outlet 18, and the centrifugal slag outlet 15 and the spray slag outlet 18 are equipped with a telescopic dustproof cover 16, and the upper end of the centrifugal dedusting cabin 2 passes through the pipeline and The spray inlet pipe 23 of the spray dedusting cabin 3 is connected, and the top exhaust port of the spray dedusting cabin 3 is connected with the emission standard detector 11, and the gas is discharged directly if the gas reaches the standard, and the gas is re-supplied through the circulation pipe 6 if the gas is not up to the standard. Enter the centrifugal dedusting cabin 2 for secondary treatment to ensure that the exhaust gas meets the standards. The telescopic dust cover 16 can prevent the smoke and dust generated during the slag discharge process from entering the air hole and cause secondary pollution. It has good protection performance and is safe and environmentally friendly.

Wherein, the centrifugal dedusting cabin 2 and the spray dedusting cabin 3 are fixedly installed on the main frame 1, and the centrifugal pump 4 is fixedly installed on the main frame 1 on the side of the centrifugal dedusting cabin 2, and the side of the centrifugal pump 4 is fixedly installed with The air filter 5 , the air is supplied to the centrifugal pump 4 after being filtered by the air filter 5 , so as to prevent impurities in the air from affecting the centrifugal pump 4 .

The upper part of the centrifugal dedusting cabin 2 close to the centrifugal pump 4 is provided with a centrifugal power joint 9 and a dust gas joint 10, the centrifugal power joint 9 is connected to the centrifugal pump 4 through a pipeline, and the smoke gas joint 10 is connected to the smoke gas inlet pipe 8 , The soot gas inlet pipe 8 is used to supply the soot gas to be treated into the centrifugal dedusting cabin 2 .

The top of the centrifugal dedusting cabin 2 is inserted with an exhaust pipe guide sleeve 20. Under the joint action of the centrifugal pump 4 and the exhaust pipe guide sleeve 20, the smoke gas entering the centrifugal dedusting cabin 2 spirals downward. The solid particles in the flue gas are discharged from the centrifugal slag discharge port 15, and the gas is supplied from the guide sleeve 20 of the exhaust pipe to the spray dedusting cabin 3 through the pipeline for spray slag discharge treatment.

The side of the spray dedusting cabin 3 away from the centrifugal dedusting cabin 2 is provided with a liquid storage tank 12, and a water pump 13 is fixedly installed above the liquid storage tank 12. The water spray pipes 21 are connected, and the circulating water spray pipe 21 is annularly fixed on the inner side wall of the spray dedusting cabin 3 through the fixed opening of the pipe. settlement.

The spray head 22 is installed on the circulating water spray pipe 21, the circulating pipe 6 is connected with the smoke gas inlet pipe 8, the valve 7 is installed on the circulating pipe 6, and the first slag collecting box 14 is arranged under the centrifugal slag discharge port 15 A second slag collection box 17 is arranged below the spray slag discharge port 18, and the first slag collection box 14 and the second slag collection box 17 are used to collect the slag at the separation place after dedusting treatment.

The working principle of the utility model is: when performing the dedusting process of the soot gas, the soot gas is fed into the soot gas inlet pipe 8, enters the centrifugal dedusting cabin 2 through the soot gas joint 10, and is filtered by the air filter 5 After the air is processed by the centrifugal pump 4, it is supplied to the centrifugal dedusting cabin 2. The centrifugal power connector 9 is located above the soot gas connector 10. Under the joint action of the centrifugal pump 4 and the exhaust pipe guide sleeve 20, it enters the centrifugal dedusting cabin The smoke and dust gas in 2 spirals downwards, and the dust is thrown to the inner wall of the centrifugal dedusting chamber 2 under the action of centrifugal force, and falls under the action of gravity to be discharged from the centrifugal slag discharge port 15, and the gas is discharged from the guide sleeve 20 of the exhaust pipe. It is supplied to the spray dedusting cabin 3 through the pipeline, and the water pump 13 pumps out the water in the liquid storage tank 12, supplies it to the circulating water spray pipe 21, and sprays the gas from the spray head 22 to carry out spray slag removal treatment, and then the gas Enter the discharge standard detector 11, and detect and judge through the discharge standard detector 11. The normal discharge that meets the discharge standard, and the cycle that does not meet the discharge standard are sent to the centrifugal dedusting cabin 2 for secondary treatment to ensure that the exhaust gas meets the standard. Both the slag discharge port 15 and the spray slag discharge port 18 are provided with telescopic dust-proof covers 16 to prevent the smoke and dust generated during the slag discharge process from being discharged into the air holes to cause secondary pollution, with good protection performance, safety and environmental protection.

The above descriptions are only preferred embodiments of the present utility model, and do not limit the utility model in any form. Although the utility model has been disclosed as above with preferred embodiments, it is not intended to limit the utility model. Without departing from the scope of the technical solution of the utility model, the technicians of this patent may use the technical content of the above prompts to make some changes or modify them into equivalent embodiments with equivalent changes, but all do not depart from the content of the technical solution of the utility model Any simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the utility model still belong to the scope of the solution of the utility model.

Claims (6)

1. The utility model provides a thermal power plant's motor unit centrifugation dust device, includes centrifugal dust removal cabin (2), main frame (1) and sprays dust removal cabin (3), its characterized in that, the lower extreme in centrifugal dust removal cabin (2) is provided with centrifugal slag notch (15), the lower extreme in spraying dust removal cabin (3) is provided with sprays slag notch (18), centrifugal slag notch (15) with spray and all install flexible dirt proof boot (16) on slag notch (18), the upper end in centrifugal dust removal cabin (2) through the pipeline with spray intake pipe (23) in spraying dust removal cabin (3) are connected, the top gas vent in spraying dust removal cabin (3) is connected with emission up to standard detector (11), and gaseous up to standard direct discharge, gaseous then not supplies into again through circulating pipe (6) centrifugal dust removal cabin (2) carries out secondary treatment.

2. The centrifugal dedusting device of a thermal power plant motor unit according to claim 1, wherein the centrifugal dedusting cabin (2) and the spraying dedusting cabin (3) are fixedly arranged on the main frame (1), a centrifugal pump (4) is fixedly arranged on the main frame (1) at the side edge of the centrifugal dedusting cabin (2), an air filter (5) is fixedly arranged at the side edge of the centrifugal pump (4), and air is supplied to the centrifugal pump (4) after being filtered by the air filter (5).

3. The centrifugal dedusting device of the thermal power plant motor group according to claim 2, wherein a centrifugal power joint (9) and a smoke gas joint (10) are arranged on one side, close to the centrifugal pump (4), of the upper portion of the centrifugal dedusting cabin (2), the centrifugal power joint (9) is connected with the centrifugal pump (4) through a pipeline, and the smoke gas joint (10) is connected with a smoke gas inlet pipe (8).

4. The centrifugal dedusting device of the thermal power plant motor unit according to claim 2, wherein an exhaust pipe guide sleeve (20) is inserted at the top of the centrifugal dedusting cabin (2), smoke and dust gas entering the centrifugal dedusting cabin (2) is spirally downward under the combined action of the centrifugal pump (4) and the exhaust pipe guide sleeve (20), solid particles in the smoke are discharged from the centrifugal slag discharge port (15), and the gas is supplied into the spray dedusting cabin (3) through a pipeline from the exhaust pipe guide sleeve (20).

5. A centrifugal dedusting device for a thermal power plant electric unit according to claim 3, characterized in that a liquid storage tank (12) is arranged on one side of the spray dedusting cabin (3) away from the centrifugal dedusting cabin (2), a water pump (13) is fixedly arranged above the liquid storage tank (12), the water pump (13) is connected with a circulating water spray pipe (21) in the spray dedusting cabin (3) through a water supply pipe (19), the circulating water spray pipe (21) is annularly fixed on the inner side wall of the spray dedusting cabin (3) through a pipeline fixing port, and the circulating water spray pipe (21) is positioned above the spray air inlet pipe (23).

6. The centrifugal dedusting device of a thermal power plant motor unit according to claim 5, wherein a spray header (22) is installed on the circulating water spray pipe (21), the circulating pipe (6) is connected with the smoke gas inlet pipe (8), a valve (7) is installed on the circulating pipe (6), a first slag collecting box (14) is arranged below the centrifugal slag discharge port (15), and a second slag collecting box (17) is arranged below the spray slag discharge port (18).