Gas-solid separation system for flammable and explosive gas dust

Abstract

The utility model provides a gas-solid separation system for flammable and explosive gas dust, which comprises a gravity settling device, a gas inlet pipe is arranged on one side of the gravity settling device, and the other side of the gravity settling device is communicated with a cloth bag dust removal device through a connecting pipeline. Collecting mechanisms are arranged at the bottoms of the gravity settling equipment and the cloth bag dust removal equipment, conveying mechanisms are arranged at the bottoms of the collecting mechanisms, negative pressure mechanisms are arranged on one sides of the collecting mechanisms, and balancing parts and pressure gauges are arranged on the outer sides of the gravity settling equipment and the cloth bag dust removal equipment. The gas-solid separation system for the flammable and explosive gas dust solves the problems that when the existing gas-solid separation equipment is used for treating the dust separation of the flammable and explosive gas, the potential safety hazard is high, the separated solid dust is inconvenient to treat, and the blockage phenomenon is easy to occur in the solid dust discharging process.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to a gas-solid separation system for flammable and explosive gases and dust. Background Technology

[0002] With the acceleration of industrialization, the demand for high-temperature powder processing technology is increasing in fields such as metallurgy, chemical industry, and new energy materials (e.g., sintering of lithium battery cathode materials). These processes often involve the release of flammable and explosive gases such as hydrogen, methane, and natural gas. The resulting ultrafine dust (particle size ≤10μm) can easily mix with combustible gases to form an explosive environment (e.g., dust cloud concentration exceeding the minimum explosive concentration (MEC),) posing serious safety hazards.

[0003] Traditional gas-solid separation equipment can achieve basic separation functions, but it generally does not have an explosion-proof design for flammable and explosive gases. When handling dust separation of flammable and explosive gases, there are high safety hazards, and it is inconvenient to handle the separated solid dust. Blockage is prone to occur during the solid dust discharge process. Therefore, it is necessary to provide a gas-solid separation system for flammable and explosive gas dust to solve the above technical problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a gas-solid separation system for flammable and explosive gas and dust.

[0005] The flammable and explosive gas dust gas-solid separation system provided by this utility model includes a gravity settling device. An air inlet pipe is provided on one side of the gravity settling device, and a bag filter is connected to the other side of the gravity settling device through a connecting pipe. A collection mechanism is provided at the bottom of both the gravity settling device and the bag filter. A conveying mechanism is provided at the bottom of the collection mechanism. A negative pressure mechanism is provided on one side of the collection mechanism. A balancing component and a pressure gauge are provided on the outside of both the gravity settling device and the bag filter. An explosion relief valve is provided at the top of both the gravity settling device and the bag filter.

[0006] As a flammable and explosive gas dust gas-solid separation system provided by this utility model, preferably, the collection mechanism includes a first hopper, and the first hopper is provided below both the gravity settling device and the bag filter dust collector. The bottom of both the gravity settling device and the bag filter dust collector is connected to the top of the first hopper through a first discharge valve. The bottom of the first hopper is connected to a second discharge valve, and the bottom of the second discharge valve is connected to a second hopper.

[0007] As a flammable and explosive gas dust gas-solid separation system provided by this utility model, preferably, the negative pressure mechanism includes a negative pressure unit, the negative pressure unit is located on one side of the first silo, the negative pressure interface of the negative pressure unit is connected to a negative pressure pipe, the top of the first silo is connected to a connecting pipe, a first solenoid valve is provided on the outside of the connecting pipe, and one end of the connecting pipe is connected to the outside of the negative pressure pipe.

[0008] As a flammable and explosive gas dust gas-solid separation system provided by this utility model, preferably, the conveying mechanism includes a mounting frame, the mounting frame is fixedly connected to one side of the second silo, a motor is fixedly connected to the bottom of the mounting frame, a conveying shaft is fixedly connected to the output end of the motor, a conveying pipe is provided on the outside of the conveying shaft, the top of the conveying pipe is fixedly connected to the bottom of the second silo, and one end of the conveying pipe is connected to a discharge pipe.

[0009] As a flammable and explosive gas dust gas-solid separation system provided by this utility model, preferably, the balancing component includes a balancing pipe, and the outside of the gravity settling device and the bag filter dust collector are both connected to the balancing pipe. A second solenoid valve is provided on the outside of the balancing pipe, and one end of the balancing pipe is connected to the outside of the first silo.

[0010] As a flammable and explosive gas-dust gas-solid separation system provided by this utility model, preferably, a first level gauge and a second level gauge are provided on the outside of both the gravity settling device and the bag filter dust collector.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This flammable and explosive gas-dust gas-solid separation system gradually separates gas and dust through gravity settling equipment and bag filter dust collection equipment. The explosion relief valve can automatically release pressure when the pressure reaches 0.15 MPa to avoid excessive internal pressure in the gravity settling equipment and bag filter dust collection equipment. When collecting and discharging solid dust from the second hopper 504, the conveyor shaft is driven by a motor to rotate, and the solid dust is discharged through the discharge pipe by the spiral shaft on the outside of the conveyor shaft. This solves the problems of high safety hazards and inconvenience in handling the separated solid dust when the current gas-solid separation equipment is used to separate dust from flammable and explosive gases, and the blockage that easily occurs during the solid dust discharge process. Attached Figure Description

[0013] Figure 1 A schematic diagram of a preferred embodiment of the flammable and explosive gas-dust gas-solid separation system provided by this utility model;

[0014] Figure 2 This utility model Figure 1 An enlarged schematic diagram of the structure at point A in the diagram.

[0015] The diagram is labeled as follows: 1. Gravity settling equipment; 2. Air inlet pipe; 3. Connecting pipe; 4. Bag filter dust collector; 5. Collection mechanism; 501. First hopper; 502. First discharge valve; 503. Second discharge valve; 504. Second hopper; 6. Negative pressure mechanism; 601. Negative pressure unit; 602. Negative pressure pipe; 603. Connecting pipe; 604. First solenoid valve; 7. Conveying mechanism; 701. Mounting frame; 702. Motor; 703. Conveying pipe; 704. Conveying shaft; 705. Discharge pipe; 8. Balancing component; 801. Balancing pipe; 802. Second solenoid valve; 9. Explosion relief valve; 10. Pressure gauge; 11. First level gauge; 12. Second level gauge. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Please refer to the following: Figure 1 and Figure 2 ,in Figure 1 A schematic diagram of a preferred embodiment of the flammable and explosive gas-dust gas-solid separation system provided by this utility model; Figure 2 This utility model Figure 1 The diagram shows an enlarged view of the structure at point A. The flammable and explosive gas-dust gas-solid separation system includes a gravity settling device 1. An inlet pipe 2 is installed on one side of the gravity settling device 1, and a bag filter 4 is connected to the other side of the gravity settling device 1 via a connecting pipe 3. A collection mechanism 5 is installed at the bottom of both the gravity settling device 1 and the bag filter 4. A conveying mechanism 7 is installed at the bottom of the collection mechanism 5. A negative pressure mechanism 6 is installed on one side of the collection mechanism 5. A balancing component 8 and a pressure gauge 10 are installed on the outer sides of both the gravity settling device 1 and the bag filter 4. An explosion relief valve 9 is installed at the top of both the gravity settling device 1 and the bag filter 4.

[0018] In this embodiment: the bag filter dust collector 4 uses a vibrator for vibration cleaning. By installing a pressure relief valve 9 on the top of the gravity settling device 1 and the bag filter dust collector 4, the pressure relief valve 9 can automatically release pressure when the pressure reaches 0.15 MPa, thus avoiding excessive internal pressure in the gravity settling device 1 and the bag filter dust collector 4. The pressure gauge 10 is a digital pressure gauge 10, which can be connected to the PLC control system.

[0019] As a technical optimization of this utility model, the collection mechanism 5 includes a first hopper 501. The first hopper 501 is provided below both the gravity settling device 1 and the bag dust collector 4. The bottoms of the gravity settling device 1 and the bag dust collector 4 are connected to the top of the first hopper 501 through a first discharge valve 502. The bottom of the first hopper 501 is connected to a second discharge valve 503, and the bottom of the second discharge valve 503 is connected to a second hopper 504.

[0020] In this embodiment: level gauges are installed on the outside of the first hopper 501 and the second hopper 504, and one-way exhaust valves are installed on the top of the first hopper 501 and the second hopper 504. The pressure is automatically released when the pressure reaches 0.15 MPa. The first discharge valve 502 and the second discharge valve 503 are specifically pneumatic ball valves.

[0021] As a technical optimization of this utility model, the negative pressure mechanism 6 includes a negative pressure unit 601, which is located on one side of the first hopper 501. The negative pressure interface of the negative pressure unit 601 is connected to a negative pressure pipe 602. The top of the first hopper 501 is connected to a connecting pipe 603. A first solenoid valve 604 is provided on the outside of the connecting pipe 603. One end of the connecting pipe 603 is connected to the outside of the negative pressure pipe 602.

[0022] The balancing component 8 includes a balancing pipe 801. The outside of the gravity settling device 1 and the bag filter dust collector 4 are both connected to the balancing pipe 801. A second solenoid valve 802 is installed on the outside of the balancing pipe 801. One end of the balancing pipe 801 is connected to the outside of the first hopper 501.

[0023] In this embodiment, the vacuum pump unit 601 can be used to vacuum the two first hoppers 501 respectively.

[0024] As a technical optimization of this utility model, the conveying mechanism 7 includes a mounting frame 701, which is fixedly connected to one side of the second hopper 504. A motor 702 is fixedly connected to the bottom of the mounting frame 701, and a conveying shaft 704 is fixedly connected to the output end of the motor 702. A conveying pipe 703 is provided on the outside of the conveying shaft 704, and the top of the conveying pipe 703 is fixedly connected to the bottom of the second hopper 504. One end of the conveying pipe 703 is connected to a discharge pipe 705.

[0025] In this embodiment, the top of the conveying pipe 703 is provided with a feed inlet, and the bottom of the second hopper 504 is provided with a discharge outlet corresponding to the top of the conveying pipe 703. When collecting and discharging solid dust inside the second hopper 504, the conveying shaft 704 can be rotated by the motor 702, and the solid dust can be discharged through the discharge pipe 705 by the spiral shaft on the outside of the conveying shaft 704.

[0026] As a technical optimization of this utility model, a first level gauge 11 and a second level gauge 12 are provided on the outside of both the gravity settling device 1 and the bag filter dust collector 4.

[0027] In this embodiment: by setting the first level gauge 11 and the second level gauge 12, it is convenient to detect the internal materials of the gravity settling device 1 and the bag filter dust collector 4.

[0028] The working principle of the flammable and explosive gas-dust gas-solid separation system provided by this utility model is as follows:

[0029] In operation, gas and dust enter the gravity settling device 1 through the inlet pipe 2. Large dust particles settle freely and fall to the bottom of the settling tank in the gravity settling device 1. Then, the first solenoid valve 604 on the outside of the connecting pipe 603 at the first hopper 501 below the gravity settling device 1 opens, and the first solenoid valve 604 on the outside of the connecting pipe 603 at the first hopper 501 below the bag filter dust collector 4 closes. The negative pressure unit 601 creates a vacuum in the first hopper 501 below the gravity settling device 1. When the vacuum pressure reaches -0.09 MPa, the first solenoid valve 604 on the outside of the connecting pipe 603 at the first hopper 501 below the gravity settling device 1 closes, the negative pressure unit 601 stops, and the gravity settling... The second solenoid valve 802 at the outer balance pipe 801 of the gravity settling device 1 is opened to balance the pressure of the first hopper 1 below the gravity settling device 1. When the pressure reaches the system pressure, the second solenoid valve 802 at the outer balance pipe 801 of the gravity settling device 1 is closed, and the first discharge valve 502 at the bottom of the gravity settling device 1 is opened, and the material falls into the first hopper 501 below. When the level gauge of the first hopper 501 senses that the material is full, the first discharge valve 502 at the bottom of the gravity settling device 1 is closed, and at the same time the second discharge valve 503 at the bottom of the first hopper 501 is opened, and the material falls into the second hopper 504 until all the material is discharged, and then the first discharge valve 502 at the bottom of the first hopper 501 is closed.

[0030] Fine dust that has not settled by gravity settling device 1 can enter bag filter dust collector 4 through connecting pipe 3. After filtration by bag filter dust collector 4, it enters the dust hopper of bag filter dust collector. Then, the first solenoid valve 604 on the outside of connecting pipe 603 at the first hopper 501 below bag filter dust collector 4 opens, and the negative pressure unit 601 creates a vacuum in the first hopper 501 below bag filter dust collector 4. When the vacuum pressure reaches -0.09MPa, the first solenoid valve 604 on the outside of connecting pipe 603 at the first hopper 501 below bag filter dust collector 4 closes, the negative pressure unit 601 stops, and the second solenoid valve on the balance pipe 801 on the outside of bag filter dust collector 4 closes. Valve 802 opens to balance the pressure in the first hopper 1 below the bag filter dust collector 4. When the pressure reaches the system pressure, the second solenoid valve 802 at the balance pipe 801 on the outside of the bag filter dust collector 4 closes, and the first discharge valve 502 at the bottom of the bag filter dust collector 4 opens, allowing the material to fall into the first hopper 501 below. When the level gauge of the first hopper 501 senses that the material is full, the first discharge valve 502 at the bottom of the bag filter dust collector 4 closes, and at the same time, the second discharge valve 503 at the bottom of the first hopper 501 opens, allowing the material to fall into the second hopper 504. This process continues until all material is discharged, at which point the first discharge valve 502 at the bottom of the first hopper 501 is closed.

[0031] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A flammable and explosive gas-dust gas-solid separation system, characterized in that, The device includes a gravity settling device (1), an air inlet pipe (2) on one side of the gravity settling device (1), and a bag filter dust collector (4) connected to the other side of the gravity settling device (1) via a connecting pipe (3). A collection mechanism (5) is provided at the bottom of both the gravity settling device (1) and the bag filter dust collector (4). A conveying mechanism (7) is provided at the bottom of the collection mechanism (5). A negative pressure mechanism (6) is provided on one side of the collection mechanism (5). A balance component (8) and a pressure gauge (10) are provided on the outside of both the gravity settling device (1) and the bag filter dust collector (4). A relief valve (9) is provided at the top of both the gravity settling device (1) and the bag filter dust collector (4).

2. The flammable and explosive gas and dust gas-solid separation system according to claim 1, characterized in that, The collection mechanism (5) includes a first hopper (501). The first hopper (501) is provided below both the gravity settling device (1) and the bag filter dust collector (4). The bottom of both the gravity settling device (1) and the bag filter dust collector (4) is connected to the top of the first hopper (501) through a first discharge valve (502). The bottom of the first hopper (501) is connected to a second discharge valve (503), and the bottom of the second discharge valve (503) is connected to a second hopper (504).

3. The flammable and explosive gas and dust gas-solid separation system according to claim 2, characterized in that, The negative pressure mechanism (6) includes a negative pressure unit (601), which is located on one side of the first silo (501). The negative pressure interface of the negative pressure unit (601) is connected to a negative pressure pipe (602). The top of the first silo (501) is connected to a connecting pipe (603). A first solenoid valve (604) is provided on the outside of the connecting pipe (603). One end of the connecting pipe (603) is connected to the outside of the negative pressure pipe (602).

4. The flammable and explosive gas and dust gas-solid separation system according to claim 2, characterized in that, The conveying mechanism (7) includes a mounting frame (701), which is fixedly connected to one side of the second hopper (504). A motor (702) is fixedly connected to the bottom of the mounting frame (701). A conveying shaft (704) is fixedly connected to the output end of the motor (702). A conveying pipe (703) is provided on the outside of the conveying shaft (704). The top of the conveying pipe (703) is fixedly connected to the bottom of the second hopper (504). One end of the conveying pipe (703) is connected to a discharge pipe (705).

5. The flammable and explosive gas and dust gas-solid separation system according to claim 2, characterized in that, The balancing component (8) includes a balancing pipe (801). The outside of the gravity settling device (1) and the bag filter dust collector (4) are both connected to the balancing pipe (801). A second solenoid valve (802) is provided on the outside of the balancing pipe (801). One end of the balancing pipe (801) is connected to the outside of the first silo (501).

6. The flammable and explosive gas and dust gas-solid separation system according to claim 1, characterized in that, Both the gravity settling device (1) and the bag filter dust collector (4) are equipped with a first level gauge (11) and a second level gauge (12) on their outer sides.

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