Explosion-proof powder sprayer special for dust

Abstract

The utility model relates to the technical field of auxiliary parts of dust removers, in particular to a special powder sprayer for explosion-proof dust. Comprising a dust bin shell, an inert dust adding access door, an inert dust bin, an equipment bin shell, an electric control access door, a PLC intelligent controller, a power indicating lamp, a powder shortage alarm lamp, a switch power box, a material level sensor, an air pipe, an electromagnetic valve, an air source adjusting valve, an air source access port, an inert dust spraying pipe, an electric control valve, an inert dust spraying port and moving trundles. The device can be mounted at the air inlet of the dust remover, inert dust is automatically added into the collecting bin of the dust remover in the working process of the dust remover, the inert dust is fully mixed with flammable and explosive dust, and finally the purpose of reducing the explosion risk of the flammable and explosive dust is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of auxiliary components of dust collectors, in particular to a special dust sprayer for explosion-proof dust. Background Art

[0002] Various industrial environments: food, machinery, automobiles, aircraft, new energy, home furnishings, etc., will generate a large amount of flammable and explosive dust during the production and processing process, which is then collected and processed by dust collectors. The three key points of dust explosion are: dust particle size, dust concentration and ignition temperature. Dust will explode only when these three points are met at the same time.

[0003] Explosion-proof dust collectors currently on the market primarily reduce the risk of dust explosions by isolating temperature, heat sources, and eliminating static electricity. However, as components age during use, these protective measures may become ineffective. Furthermore, dust collected within the dust collector accumulates in the collection chamber, increasing dust concentration and the risk of flammability and explosion. Therefore, a device is needed to reduce the concentration of flammable and explosive dust, ensuring that the dust remains in a safe state. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings of the prior art that the dust concentration becomes higher due to the accumulation of dust, and the danger of flammability and explosion becomes higher, and to propose a special explosion-proof dust powder sprayer.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A special explosion-proof dust sprayer is designed, which includes a dust bin shell and an equipment bin shell. The equipment bin shell is installed below the dust bin shell, and is characterized in that:

[0007] An inert dust adding inspection door is provided above the dust bin shell, an inert dust bin is provided below the inert dust adding inspection door, and movable casters are provided below the dust bin shell and the equipment bin shell;

[0008] An electric control maintenance door is provided in front of the equipment compartment housing, and a PLC intelligent controller is installed on the side wall of the electric control maintenance door. The PLC intelligent controller is respectively provided with a power indicator light and a powder shortage alarm light;

[0009] A switch power box is installed on the inner wall of the equipment bin housing, and the switch power box is electrically connected to the material level sensor, electric control valve, electromagnetic valve and PCL intelligent controller.

[0010] A material level sensor is installed on the inner side wall of the equipment bin shell, an air pipe is installed on the inner side wall of the equipment bin shell, an electromagnetic valve is installed on the air pipe, an air source regulating valve is installed on the left side of the electromagnetic valve, and the left side of the air source regulating valve extends to the outer wall of the equipment bin shell and is connected to a gas source inlet;

[0011] An inert dust discharge pipe is installed in an opening on the upper inner wall of the equipment bin shell, an electric control valve is installed below the inert dust discharge pipe, and the inert dust discharge pipe extends to the outside of the equipment bin shell and is provided with an inert dust discharge port;

[0012] A control line access port is provided on the outer side wall of the equipment compartment shell.

[0013] Preferably, an air source regulating valve switch is installed on the right side of the air source regulating valve.

[0014] Preferably, the gas source regulating valve switch is used to manually open and close the gas source, which is convenient for daily maintenance.

[0015] Preferably, the material level sensor is used to issue an alarm when the inert dust is lower than the material level sensor position, prompting personnel to add inert dust.

[0016] Preferably, the gas source regulating valve is used to adjust the gas source pressure, thereby controlling the amount of inert dust used each time.

[0017] Preferably, the electromagnetic valve is used to control the opening and closing of the gas source.

[0018] Preferably, the switching power supply box is used to convert the 220V input power into a 24V safe working power supply to power the material level sensor, electric control valve, solenoid valve and PCL intelligent controller.

[0019] Preferably, the electric control valve is used to control the amount of inert dust. After the electric control valve and the electromagnetic valve are opened for 3 seconds, the electromagnetic valve is closed and the electric control valve is closed after a delay of 5 seconds.

[0020] The utility model proposes a special explosion-proof dust powder sprayer, which has the beneficial effect that: the utility model can be installed at the air inlet of the dust collector by connecting the inert dust spray port to the air inlet of an external dust collector through a hose. When the dust collector is working, the inert dust is automatically added to the dust collector collection bin, allowing the inert dust to be fully mixed with the flammable and explosive dust, ultimately achieving the purpose of reducing the explosion risk of the flammable and explosive dust. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the front cross-sectional structure of a special explosion-proof dust sprayer proposed by the utility model;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of a special explosion-proof dust sprayer proposed by the utility model;

[0023] Figure 3 The utility model is a schematic side view of the cross-sectional structure of a special explosion-proof dust sprayer.

[0024] In the figure: 10. Dust silo housing; 11. Inert dust addition inspection door; 12. Inert dust silo; 20. Equipment silo housing; 21. Electric control inspection door; 22. PLC intelligent controller; 23. Power indicator light; 24. Powder shortage alarm light; 25. Switch power box; 26. Material level sensor; 27. Air pipe; 28. Solenoid valve; 29. ​​Air source regulating valve; 30. Air source inlet; 40. Inert dust discharge pipe; 41. Electric control valve; 42. Inert dust discharge port; 50. Movable casters; 51. Control line inlet. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0026] Reference Figure 1-3 , a special explosion-proof dust sprayer, including a dust bin shell 10 and an equipment bin shell 20, wherein the equipment bin shell 20 is installed below the dust bin shell 10, characterized in that,

[0027] An inert dust adding inspection door 11 is provided above the dust bin housing 10, an inert dust bin 12 is provided below the inert dust adding inspection door 11, and movable casters 50 are provided below the dust bin housing 10 and the equipment bin housing 20;

[0028] An electric control maintenance door 21 is provided in front of the equipment compartment housing 20, and a PLC intelligent controller 22 is installed on the side wall of the electric control maintenance door 21. The PLC intelligent controller 22 is provided with a power indicator light 23 and a powder shortage alarm light 24;

[0029] A switch power box 25 is installed on the inner side wall of the equipment bin housing 20. The switch power box 25 is electrically connected to the material level sensor 26, the electric control valve 41, the electromagnetic valve 28 and the PCL intelligent controller.

[0030] A material level sensor 26 is installed on the inner side wall of the equipment bin housing 20. An air pipe 27 is installed on the inner side wall of the equipment bin housing 20. A solenoid valve 28 is installed on the air pipe 27. An air source regulating valve 29 is installed on the left side of the solenoid valve 28. The left side of the air source regulating valve 29 extends to the outer wall of the equipment bin housing 20 and is connected to an air source inlet 30.

[0031] An inert dust discharge pipe 40 is installed in a hole on the upper inner wall of the equipment bin housing 20. An electric control valve 41 is installed below the inert dust discharge pipe 40. The inert dust discharge pipe 40 extends to the outside of the equipment bin housing 20 and is provided with an inert dust discharge port 42.

[0032] A control line access port 51 is provided on the outer side wall of the equipment compartment housing.

[0033] As an optimization solution of this embodiment, a gas source regulating valve 29 switch is installed on the right side of the gas source regulating valve 29 .

[0034] As an optimization solution of this embodiment, the gas source regulating valve 29 switch is used to manually open and close the gas source, which is convenient for daily maintenance.

[0035] As an optimization solution of this embodiment, the material level sensor 26 is used to issue an alarm when the inert dust is lower than the position of the material level sensor 26, prompting personnel to add inert dust.

[0036] As an optimization solution of this embodiment, the gas source regulating valve 29 is used to adjust the gas source pressure, thereby controlling the amount of inert dust used each time.

[0037] As an optimization solution of this embodiment, the electromagnetic valve 28 is used to control the opening and closing of the gas source.

[0038] As an optimization solution of this embodiment, the switching power supply box 25 is used to convert the 220V input power into a 24V safe working power supply to power the material level sensor 26, the electric control valve 41, the electromagnetic valve 28 and the PCL intelligent controller.

[0039] As an optimization solution of this embodiment, the electric control valve 41 is used to control the amount of inert dust. After being opened simultaneously with the electromagnetic valve 28 for 3 seconds, the electromagnetic valve 28 is closed and the electric control valve 41 is closed after a delay of 5 seconds.

[0040] The overall workflow of this utility model is as follows:

[0041] S1. Connect the inert dust outlet 42 to the air inlet of the external dust collector using a hose;

[0042] S2. Connect compressed air to the air source inlet 30 and start the external dust collector to start working;

[0043] S3. After the external dust collector is started, the powder sprayer starts working at the same time. It is controlled by the PLC intelligent controller 22. The air source is opened once every 10 seconds, and the air source is used to blow up the inert dust from the bottom. At the same time, the electric control valve 41 is opened, and the suction force of the external dust collector itself is used to suck the floating inert dust into the dust collector. When the inert dust enters the dust suction port of the external dust collector, it is fully mixed with the flammable and explosive dust through the flow of air, thereby achieving the purpose of reducing the concentration of flammable and explosive dust.

[0044] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A special explosion-proof dust sprayer, comprising a dust bin shell and an equipment bin shell, wherein the equipment bin shell is installed below the dust bin shell, characterized in that: An inert dust adding inspection door is provided above the dust bin shell, an inert dust bin is provided below the inert dust adding inspection door, and movable casters are provided below the dust bin shell and the equipment bin shell; An electric control maintenance door is provided in front of the equipment compartment housing, and a PLC intelligent controller is installed on the side wall of the electric control maintenance door. The PLC intelligent controller is respectively provided with a power indicator light and a powder shortage alarm light; A switch power box is installed on the inner wall of the equipment bin housing, and the switch power box is electrically connected to the material level sensor, electric control valve, electromagnetic valve and PCL intelligent controller. A material level sensor is installed on the inner side wall of the equipment bin shell, an air pipe is installed on the inner side wall of the equipment bin shell, an electromagnetic valve is installed on the air pipe, an air source regulating valve is installed on the left side of the electromagnetic valve, and the left side of the air source regulating valve extends to the outer wall of the equipment bin shell and is connected to a gas source inlet; An inert dust discharge pipe is installed in an opening on the upper inner wall of the equipment bin shell, an electric control valve is installed below the inert dust discharge pipe, and the inert dust discharge pipe extends to the outside of the equipment bin shell and is provided with an inert dust discharge port; A control line access port is provided on the outer side wall of the equipment compartment shell.

2. The explosion-proof dust sprayer according to claim 1, characterized in that: An air source regulating valve switch is installed on the right side of the air source regulating valve.

3. The explosion-proof dust sprayer according to claim 2, characterized in that: The gas source regulating valve switch is used to manually open and close the gas source, which is convenient for daily maintenance.

4. The explosion-proof dust sprayer according to claim 1, characterized in that: The material level sensor is used to send out an alarm when the inert dust is lower than the material level sensor position, prompting personnel to add inert dust.

5. The explosion-proof dust sprayer according to claim 1, characterized in that: The gas source regulating valve is used to adjust the gas source pressure, thereby controlling the amount of inert dust used each time.

6. The explosion-proof dust sprayer according to claim 1, characterized in that: The electromagnetic valve is used to control the opening and closing of the gas source.

7. The explosion-proof dust sprayer according to claim 1, characterized in that: The switch power box is used to convert the 220V input power into a 24V safe working power supply to power the material level sensor, electric control valve, solenoid valve and PCL intelligent controller.

8. The explosion-proof dust sprayer according to claim 1, characterized in that: The electric control valve is used to control the amount of inert dust. After being opened simultaneously with the electromagnetic valve for 3 seconds, the electromagnetic valve is closed and the electric control valve is closed after a delay of 5 seconds.

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