High-temperature-resistant negative-pressure suction device for underground flue and environmental protection equipment

Abstract

The utility model discloses a high-temperature-resistant negative-pressure suction device for underground flues and environmental protection equipment, which comprises a movable trolley, a stainless steel fan is mounted on the trolley, an air inlet nozzle communicated with an inner cavity of a volute of the stainless steel fan is arranged on the volute of the stainless steel fan, the air inlet nozzle extends outwards to be connected with a pipe body, a cooling electric control valve is further mounted on the air inlet nozzle, and the cooling electric control valve is connected with the pipe body. A connecting calandria is mounted at an air pipe of the stainless steel fan in an extending manner; the connecting calandria is connected with a dust collecting cloth bag and a dust falling hopper through an inlet hoop; according to the utility model, accumulated dust is sucked out from the dust cleaning holes reserved in the parts needing to be cleaned, such as the flue and the denitration tower through a negative pressure suction principle, and an operator does not need to enter the underground flue, so that the labor intensity is effectively reduced, and the occurrence rate of safety accidents is reduced; a flue door does not need to be opened in the cleaning process, the kiln pressure is not affected, the kiln is protected, and flue gas up-to-standard emission is guaranteed; and high-temperature dust can be cooled in the cleaning process, and storage and transportation are easy.

Description

Technical Field

[0001] The utility model relates to a suction device, in particular to a high temperature resistant negative pressure suction device for underground flues and environmental protection equipment. Background Art

[0002] The exhaust and air supply parts of glass kilns are mostly underground. As the kiln is running, some powdered raw materials and volatiles will gather in the flue, causing poor ventilation in the underground flue. This will increase the kiln pressure and seriously affect the life of the kiln. Insufficient secondary air supply to the fire direction will lead to incomplete combustion, increased energy consumption, and ash accumulation in the denitrification tower of environmental protection equipment will cause the catalyst to fail, affecting the efficiency of flue gas treatment.

[0003] In view of this, cleaning operations need to be carried out regularly. The traditional cleaning method still uses manual cleaning. The reserved door is opened, and workers enter the underground flue to clean it with shovels and iron buckets. However, the actual working temperature is close to 200℃, and it is still a limited space operation. The labor intensity of personnel is high, and it is easy to suffer from high temperature and lack of oxygen, which can easily cause burns. In addition, after the flue door is opened, the exhaust power of the exhaust fan will be insufficient, the kiln pressure will increase, the kiln will be damaged, the flue gas flow rate will be too large, and the oxygen content will increase, which can easily lead to excessive emissions. Utility Model Content

[0004] In order to solve the deficiencies existing in the above-mentioned technologies, the utility model provides a high temperature resistant negative pressure suction device for an underground flue and environmental protection equipment.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: it includes a movable trolley, a stainless steel fan is installed on the trolley, the volute of the stainless steel fan is equipped with an air inlet nozzle connected to the inner cavity of the volute, the air inlet nozzle extends outwardly and is connected to a pipe body, a cooling electric control valve is also installed on the air inlet nozzle, a connecting drain pipe is extended to the air duct of the stainless steel fan, and the connecting drain pipe is connected to a dust collecting bag and a dust hopper through an inlet clamp.

[0006] Furthermore, the tube body includes a steel hose and a dust suction nozzle. The steel hose is directly connected to the air inlet nozzle, and the dust suction nozzle is connected to a free port of the steel hose.

[0007] Furthermore, the dust suction nozzle, the steel wire hose and the air inlet nozzle are interconnected.

[0008] Furthermore, the cooling electric control valve is connected to the air inlet nozzle.

[0009] Furthermore, the connecting pipe is connected to the stainless steel fan and the inlet clamp at both ends thereof, and an external thermocouple is provided at the connection between the connecting pipe and the stainless steel fan.

[0010] Furthermore, the inlet clamp fastens the dust collecting bag and the dust hopper through its own locking buckle.

[0011] Furthermore, the dust collecting bag is located directly above the dust collecting hopper and the two are internally connected to each other.

[0012] Furthermore, an ash dropping valve is installed at the bottom of the ash dropping hopper.

[0013] The utility model discloses a high-temperature resistant negative pressure suction device for an underground flue and environmental protection equipment. The negative pressure suction principle is used to suck out accumulated ash from the flue, denitrification tower and other parts that need to be cleaned through ash cleaning holes reserved therein. Operators do not need to enter the underground flue, which effectively reduces labor intensity and the incidence of safety accidents. The flue door does not need to be opened during the cleaning process, which does not affect the kiln pressure, protects the kiln and ensures that the smoke is discharged in compliance with the standards. In addition, the high-temperature dust can be cooled during the cleaning process, which is easy to store and transport. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0015] In the figure: 1. Trolley; 2. Stainless steel fan; 3. Dust nozzle; 4. Steel wire hose; 5. Air inlet nozzle; 6. Cooling electric control valve; 7. Gauge; 8. Connecting pipe; 9. Inlet clamp; 10. Dust bag; 11. Ash hopper; 12. Ash valve. DETAILED DESCRIPTION

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0017] The present embodiment relates to an underground flue and a high-temperature resistant negative pressure suction device for environmental protection equipment, and includes a movable trolley 1 on which a stainless steel fan 2 is installed. The volute of the stainless steel fan 2 is provided with an air inlet nozzle 5 connected to the inner cavity of the volute, and the air inlet nozzle 5 extends outwardly and is connected to a pipe body. A cooling electric control valve 6 is also installed on the air inlet nozzle 5. A connecting drain pipe 8 is extended from the air duct of the stainless steel fan 2, and the connecting drain pipe 8 is connected to a dust collecting bag 10 and an ash hopper 11 through an inlet clamp 9. It should be noted that a motor is installed on the other side of the volute of the stainless steel fan 2, which is not a technical feature to be protected in this application, and is hereby stated.

[0018] Preferably, the tube body includes a steel wire hose 4 and a dust nozzle 3. The steel wire hose 4 is directly connected to the air inlet nozzle 5, and the dust nozzle 3 is connected to the free port of the steel wire hose 4. The steel wire hose 4 can be bent at will, which facilitates the application of this embodiment in a small space and is more suitable for working conditions with tortuous spaces, thereby increasing the applicability of this embodiment.

[0019] Furthermore, the dust nozzle 3, the steel hose 4 and the air inlet nozzle 5 are interconnected to ensure smooth suction passage.

[0020] The cooling electric control valve 6 is connected to the air inlet nozzle 5 , and the cold air from the outside is introduced through the cooling electric control valve 6 to cool the high-temperature smoke and dust sucked from the dust suction nozzle 3 .

[0021] The connecting pipe 8 is connected to the stainless steel fan 2 and the inlet clamp 9 at its two ends respectively. The connection between the connecting pipe 8 and the stainless steel fan 2 is equipped with an external thermocouple 7, which is used to extract the temperature information of the smoke entering the connecting pipe 8 from the stainless steel fan 2 and transmit the temperature signal to the external PLC.

[0022] The inlet clamp 9 fastens the dust collecting bag 10 and the ash hopper 11 by its own locking buckle. On this basis, the dust collecting bag 10 is located directly above the ash hopper 11 and the two are internally interconnected. An ash valve 12 is also installed at the bottom of the ash hopper 11. It should be noted that the dust collecting bag 10 is made of stainless steel.

[0023] The working principle of this embodiment is as follows:

[0024] Place the trolley 1 at the site, insert the dust suction nozzle 3 into the underground flue or the dust accumulation part of the environmental protection equipment through the dust blowing hole reserved on site, and use the negative pressure suction of the stainless steel fan 2 to suck the high-temperature smoke into the stainless steel fan 2 through the dust suction nozzle 3 and the steel wire hose 4 in sequence;

[0025] Since the dust bag 10 has a temperature limit, the temperature signal is extracted through the thermocouple 7 and the temperature data is transmitted to the PLC, and the cooling electric control valve 6 is controlled by the PLC to introduce cold air, thereby cooling the flue gas and high-temperature dust to the set temperature. It should be noted that the set temperature is not limited;

[0026] The cooled flue gas and high-temperature dust enter the dust collecting bag 10 through the connecting pipe 8 and the inlet clamp 9 in turn. After collection, the stainless steel fan 2 is turned off, the ash valve 12 is opened, and the dust is finally discharged through the ash hopper 11.

[0027] In this way, the underground flue and environmental protection equipment high-temperature resistant negative pressure suction device disclosed by the utility model can suck out the accumulated ash from the flue, denitrification tower and other parts that need to be cleaned through the reserved cleaning holes through the negative pressure suction principle. Operators do not need to enter the underground flue, which effectively reduces labor intensity and the incidence of safety accidents. There is no need to open the flue door during the cleaning process, which does not affect the kiln pressure, protects the kiln while ensuring that the flue gas is discharged in compliance with the standards. In addition, the high-temperature dust can be cooled during the cleaning process, which is easy to store and transport.

[0028] The above implementation modes are not limitations of the present invention, and the present invention is not limited to the above examples. Any changes, modifications, additions or substitutions made by technicians in this technical field within the technical solution of the present invention also belong to the protection scope of the present invention.

Claims

1. A high temperature resistant negative pressure suction device for underground flue and environmental protection equipment, characterized in that: The invention comprises a movable trolley (1), on which a stainless steel fan (2) is installed, a volute of the stainless steel fan (2) is provided with an air inlet (5) connected to the inner cavity of the volute, the air inlet (5) extends outwardly and is connected to a pipe body, a cooling electric control valve (6) is also installed on the air inlet (5), a connecting pipe (8) is extended and installed at the air duct of the stainless steel fan (2), and the connecting pipe (8) is connected to a dust collecting bag (10) and a dust hopper (11) through an inlet clamp (9).

2. The underground flue and environmental protection equipment high temperature resistant negative pressure suction device according to claim 1, characterized in that: The tube body comprises a steel hose (4) and a dust suction nozzle (3); the steel hose (4) is directly connected to the air inlet nozzle (5), and the dust suction nozzle (3) is connected to the free port of the steel hose (4).

3. The underground flue and environmental protection equipment high temperature resistant negative pressure suction device according to claim 2, characterized in that: The dust suction nozzle (3), the steel wire hose (4) and the air inlet nozzle (5) are formed in a mutually connected manner.

4. The underground flue and environmental protection equipment high temperature resistant negative pressure suction device according to claim 1, characterized in that: The cooling electric control valve (6) is in continuous communication with the air inlet nozzle (5).

5. The underground flue and environmental protection equipment high temperature resistant negative pressure suction device according to claim 1, characterized in that: The connecting row pipe (8) is connected to the stainless steel fan (2) and the inlet clamp (9) at its two ends respectively, and the connection between the connecting row pipe (8) and the stainless steel fan (2) is equipped with an external thermocouple (7).

6. The underground flue and environmental protection equipment high temperature resistant negative pressure suction device according to claim 1, characterized in that: The inlet clamp (9) fastens the dust collecting bag (10) and the dust hopper (11) by means of its own locking buckle.

7. The underground flue and environmental protection equipment high temperature resistant negative pressure suction device according to claim 6, characterized in that: The dust collecting bag (10) is located directly above the dust collecting hopper (11) and the two are internally connected to each other.

8. The underground flue and environmental protection equipment high temperature resistant negative pressure suction device according to claim 7, characterized in that: An ash dropping valve (12) is also installed at the bottom of the ash dropping hopper (11).

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