External dust receiving device of dust remover for removing silicon monoxide dust

Abstract

The external dust receiving device comprises a dust receiving box, a stirrer, a dust input port pipeline, a dust output port pipeline, an air filter and the dust remover, the lower end of the dust input port pipeline and the lower end of the dust output port pipeline both extend into the dust receiving box, the upper end of the dust input port pipeline is connected with the dust remover, and the lower end of the dust output port pipeline is connected with the air filter. The upper end of the dust output port pipeline is connected with the air filter, the stirrer is installed on the top of the dust receiving box, the lower end of the stirrer extends into the dust receiving box, a sediment drain outlet is formed in the bottom of the dust receiving box, an automatic water injection port pipeline is arranged on the top of the dust receiving box, and an electromagnetic valve is arranged on the automatic water injection port pipeline. Through the application of the external dust receiving device of the dust remover for removing the silicon monoxide dust, the silicon monoxide dust can be fully mixed with water to form slurry, so that the direct contact between the slurry and air is blocked, and the spontaneous combustion risk and the fire hazard caused by the oxidation heat release of the silicon monoxide can be fundamentally eliminated.

Description

Technical Field

[0001] This utility model relates to the field of dust collector technology, and in particular to an external dust collection device for dust collectors that removes silica dust. Background Technology

[0002] Existing dust collector ash collection devices typically prioritize sealed collection, easy installation, and high dust collection efficiency in their design. For example, Chinese invention patent CN105521980A discloses a dust collector ash collection device that improves installation and maintenance convenience and dust collection efficiency through an openable and locking mechanism. Chinese utility model patent CN220214341U discloses a dust collector ash collection device that achieves centralized dust collection through multiple ash collection ports and a conveying device, improving ash cleanliness and dust collection efficiency. However, while existing dust collector ash collection devices consider the needs for convenient installation and high efficiency, they do not address the potential safety risks posed by the ash-generated media.

[0003] In the photovoltaic industry, silica dust poses certain safety risks: when silica accumulates at room temperature and pressure, it readily oxidizes with air and releases heat, clearly creating a fire hazard. Furthermore, its dust is irritating to human skin, eyes, and respiratory tract, easily causing occupational health problems. In the process of recovering and reusing photovoltaic crystal pulling exhaust gases, silica dust is typically collected and removed using a dust collector. However, current dust collector collection devices lack specific protective measures and cannot address the safety risks caused by silica dust. Utility Model Content

[0004] In view of this, in order to solve the above problems, the purpose of this utility model is to provide an external dust collection device for removing silica dust from a dust collector, comprising: a dust collection box, a stirrer, a dust inlet pipe, a dust outlet pipe, an air filter, and a dust collector. The lower end of the dust inlet pipe extends into the dust collection box, and the upper end of the dust inlet pipe is connected to the dust collector. The lower end of the dust outlet pipe extends into the dust collection box, and the upper end of the dust outlet pipe is connected to the air filter. The stirrer is installed on the top of the dust collection box, and the lower end of the stirrer extends into the dust collection box. The stirrer is located between the dust inlet pipe and the dust outlet pipe. A sediment discharge port is provided at the bottom of the dust collection box, and an automatic water inlet pipe is provided at the top of the dust collection box. A solenoid valve is provided on the automatic water inlet pipe, and the automatic water inlet pipe is located between the stirrer and the dust inlet pipe.

[0005] In another preferred embodiment, it further includes: a dust inlet valve and a dust outlet valve, wherein the dust inlet valve is disposed at the upper end of the dust inlet pipe and the dust outlet valve is disposed at the upper end of the dust outlet pipe.

[0006] In another preferred embodiment, the system further includes: a PVC wire hose, an outlet union, and an inlet union. The upper end of the dust inlet pipe is threadedly connected to one end of the PVC wire hose via the inlet union, and the other end of the PVC wire hose is connected to the dust collection box of the dust collector. The upper end of the dust outlet pipe is threadedly connected to the lower end of the air filter via the outlet union.

[0007] In another preferred embodiment, two baffles are provided on the inner top wall of the ash receiving box. One baffle is located between the dust output pipe and the agitator, and the other baffle is located between the automatic water inlet and the dust input pipe. Ventilation holes are provided on the baffles.

[0008] In another preferred embodiment, a plurality of settling chambers are provided on the inner bottom wall of the ash receiving box, and the settling chambers are arranged in a triangular shape.

[0009] In another preferred embodiment, the ash receiving box is provided with a sewage outlet pipe, which is connected to the interior of the settling chamber. One end of the sewage outlet pipe extends out of the ash receiving box, and one end of the sewage outlet pipe has the sediment discharge port. A sewage ball valve is also provided at one end of the sewage outlet pipe.

[0010] In another preferred embodiment, it further includes: a displacement gas inlet pipe and a gas detection pipe, the lower end of the gas detection pipe extending into the interior of the ash receiving box, the gas detection pipe being located between the baffle and the agitator, the gas detection pipe being provided with a gas detection port needle valve, the displacement gas inlet pipe being located on the side of the ash receiving box near the dust collector, one end of the displacement gas inlet pipe extending into the interior of the ash receiving box, the displacement gas inlet pipe being provided with a displacement inlet needle valve.

[0011] In another preferred embodiment, the system further includes a level gauge, which is disposed on the outer wall of the ash receiving box near the dust collector and located below the displacement gas inlet pipe. Both the level gauge and the solenoid valve are connected to an external control system.

[0012] In another preferred embodiment, the inner bottom wall of the ash receiving box is provided with two overflow plates, and each of the baffles is positioned directly opposite one of the overflow plates.

[0013] The present invention, by adopting the above-mentioned technical solution, has the following positive effects compared with the prior art: By applying the present invention, an external dust collection device for removing silica dust from a dust collector is proposed. This device not only ensures the dust collection efficiency of the dust collector, but also fully mixes the silica dust with water to form a slurry, thereby blocking its direct contact with air. This helps to fundamentally eliminate the risk of spontaneous combustion and fire hazards caused by the exothermic oxidation of silica, and helps to avoid occupational hazards caused by workers' contact with silica, thereby reducing the risk of occupational diseases caused by dust. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the external dust collection device for a dust collector that removes silica dust according to this utility model.

[0015] In the attached image:

[0016] 1. Ash receiving box; 2. Agitator; 3. Ash inlet pipe; 4. Ash outlet pipe; 5. Air filter; 6. Dust collector; 7. Automatic water inlet pipe; 8. Ash inlet valve; 9. Ash outlet valve; 10. PVC steel wire hose; 11. Outlet union; 12. Inlet union; 13. Baffle; 15. Settling chamber; 16. Sewage outlet pipe; 17. Replacement gas inlet pipe; 18. Gas detection pipe; 19. Level gauge; 20. Overflow plate; 21. Reducing elbow. Detailed Implementation

[0017] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0018] In the description of this utility model, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "inner", "outer", "front", "back", "horizontal", and "vertical" are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0019] It should be noted that the terms "horizontal" and "vertical" in this utility model are used to describe approximate positional relationships, and not strictly "horizontal plane" or "vertical plane".

[0020] like Figure 1The diagram illustrates a preferred embodiment of an external dust collection device for removing silica dust from a dust collector. The device includes: a dust collection box 1, a stirrer 2, a dust inlet pipe 3, a dust outlet pipe 4, an air filter 5, and a dust collector 6. The lower end of the dust inlet pipe 3 extends into the dust collection box 1, and the upper end of the dust inlet pipe 3 is connected to the dust collector 6. The lower end of the dust outlet pipe 4 extends into the dust collection box 1, and the upper end of the dust outlet pipe 4 is connected to the air filter 5. The air filter 5 is used to filter the incoming silica dust. The silica dust is emitted and the purified gas is discharged. The agitator 2 is installed on the top of the dust receiving box 1 and is bolted to the dust receiving box 1. The lower end of the agitator 2 extends into the interior of the dust receiving box 1 and is located between the dust inlet pipe 3 and the dust outlet pipe 4. The bottom of the dust receiving box 1 is provided with a sediment discharge port, and the top of the dust receiving box 1 is provided with an automatic water inlet pipe 7. The automatic water inlet pipe 7 is equipped with a solenoid valve and is located between the agitator 2 and the dust inlet pipe 3.

[0021] Furthermore, as a preferred embodiment, the stirrer 2 is preferably configured as a pneumatic stirrer.

[0022] Furthermore, as a preferred embodiment, it also includes: a dust inlet valve 8 and a dust outlet valve 9, wherein the dust inlet valve 8 is disposed at the upper end of the dust inlet pipe 3 and the dust outlet valve 9 is disposed at the upper end of the dust outlet pipe 4.

[0023] Furthermore, as a preferred embodiment, it also includes: a PVC wire hose 10, an outlet union 11, and an inlet union 12. The upper end of the dust inlet pipe 3 is threadedly connected to one end of the PVC wire hose 10 through the inlet union 12, and the other end of the PVC wire hose 10 is connected to the dust collection box of the dust collector 6. The upper end of the dust outlet pipe 4 is threadedly connected to the lower end of the air filter 5 through the outlet union 11.

[0024] Furthermore, as a preferred embodiment, the dust collector 6 is provided with a reducing elbow 21 on the dust collection box, and the other end of the PVC steel wire hose 10 is connected to the reducing elbow 21 by a union thread.

[0025] Furthermore, as a preferred embodiment, two baffles 13 are provided on the inner top wall of the ash receiving box 1. One baffle 13 is located between the dust output pipe 4 and the agitator 2, and the other baffle 13 is located between the automatic water inlet and the dust input pipe 3. Ventilation holes are provided on the baffles 13. Furthermore, the baffles 13 and the ventilation holes can prevent silica dust generated by agitation and mechanical stirring from accumulating on the inner top of the ash receiving box 1, and guide the silica dust to the dust output pipe 4.

[0026] Furthermore, as a preferred embodiment, a plurality of settling chambers 15 are provided on the inner bottom wall of the ash receiving box 1, and the settling chambers 15 are arranged in a triangular shape. Furthermore, the settling chambers 15 help to increase the settling contact area and improve settling efficiency.

[0027] Furthermore, as a preferred embodiment, the ash receiving box 1 is provided with a sewage outlet pipe 16 inside, the sewage outlet pipe 16 is connected to the interior of the settling chamber 15, one end of the sewage outlet pipe 16 extends out of the ash receiving box 1, one end of the sewage outlet pipe 16 has a settling sewage outlet, and one end of the sewage outlet pipe 16 is provided with a sewage ball valve.

[0028] Furthermore, as a preferred embodiment, it also includes: a displacement gas inlet pipe 17 and a gas detection pipe 18. The lower end of the gas detection pipe 18 extends into the interior of the ash receiving box 1. The gas detection pipe 18 is located between a baffle 13 and the agitator 2. A gas detection port needle valve is provided on the gas detection pipe 18. The displacement gas inlet pipe 17 is located on the side of the ash receiving box 1 near the dust collector 6. One end of the displacement gas inlet pipe 17 extends into the interior of the ash receiving box 1. A displacement inlet needle valve is provided on the displacement gas inlet pipe 17. The displacement inlet needle valve can be used to adjust the rate at which external gas enters the interior of the ash receiving box 1.

[0029] Furthermore, as a preferred embodiment, the other end of the displacement gas inlet pipe 17 is connected to an external gas source device, which introduces inert gases such as argon into the ash collection box 1 through the displacement gas inlet pipe 17. Furthermore, before use, the ash collection device can perform gas replacement on the inside of the ash collection box 1 through the displacement gas inlet pipe 17 to expel air from the ash collection box 1 and prevent oxidation reactions between silica dust and the air inside the ash collection box 1.

[0030] Furthermore, as a preferred embodiment, the upper end of the gas detection pipe 18 is connected to an external oxygen gas content detection device to facilitate the detection of the oxygen gas content inside the ash receiving box 1. Furthermore, after the gas in the ash receiving box 1 is replaced, the oxygen content in the ash receiving box 1 can be detected by the oxygen gas content detection device. Ash receiving is only performed after the detected oxygen content meets the standard, to avoid excessive oxygen content in the ash receiving box 1, which could lead to an oxidation reaction between the silica dust and the oxygen in the ash receiving box 1, causing a safety hazard.

[0031] Furthermore, as a preferred embodiment, it also includes: a level gauge 19, which is disposed on the outer wall of the ash receiving box 1 near the dust collector 6 and bolted to the ash receiving box 1. The level gauge 19 is located below the replacement gas inlet pipe 17. Both the level gauge 19 and the solenoid valve are connected to an external control system. Further, the float of the level gauge 19 is located inside the ash receiving box 1 so that the level gauge 19 can detect the liquid level inside the ash receiving box 1. When the level gauge 19 detects that the liquid level inside the ash receiving box 1 has reached a preset replenishment limit, the level gauge 19 sends a relevant signal to the control system. The control system then controls the solenoid valve to open, realizing automatic replenishment. When the level gauge 19 detects that the liquid level inside the ash receiving box 1 has reached a preset replenishment height limit, the level gauge 19 sends a relevant signal to the control system. The control system then controls the solenoid valve to close, realizing automatic shut-off of replenishment.

[0032] Furthermore, as a preferred embodiment, the control system is preferably configured as a PLC controller.

[0033] Furthermore, as a preferred embodiment, the inner bottom wall of the ash receiving box 1 is provided with two overflow plates 20, and each baffle 13 is directly opposite an overflow plate 20. Furthermore, the overflow plates 20 allow the mixture to overflow in layers to the next settling area after reaching the height of the overflow plates 20, which helps to prolong the settling time, promote the graded settling of light and heavy particles, and improve the settling effect.

[0034] Furthermore, as a preferred embodiment, the dust inlet pipe 3, the dust outlet pipe 4, the settling chamber 15, the baffle 13, and the overflow plate 20 are all welded to the inner wall of the dust receiving box 1.

[0035] The working principle of this utility model is as follows: In use, first open the manual valve on the dust collection box of the dust collector 6. The pulse air pressure inside the dust collector 6 will flush the silica dust out of the dust collection box. The silica dust then enters the ash receiving box 1 through the PVC steel wire hose 10 and the dust inlet pipe 3. Water is injected into the ash receiving box 1 through the automatic water inlet pipe 7. The silica dust will undergo aeration and agitation with the water. After aeration and agitation, the silica dust and water will mix to form a mixture. The mixture is then mechanically agitated by the stirrer 2. During the mechanical agitation process, the mixture will gradually become muddy. Slurry settling: After being stratified by the overflow plate 20, the slurry will slowly settle into the settling chamber 15. Observe the detection results of the level gauge 19. When the level gauge 19 detects that the mixed liquid in the ash receiving box 1 has reached a certain height, the drain ball valve can be manually opened so that the settled material can be discharged from the drain pipe 16 to the outside of the ash receiving box 1. During the aeration and mechanical stirring process, silica dust will also be generated. Silica dust can enter the air filter 5 from the dust output pipe 4 and the ash receiving outlet valve 9. The air filter 5 will filter the silica dust and discharge the purified gas.

[0036] The above description is only a preferred embodiment of the present utility model and does not limit the implementation method and protection scope of the present utility model. Those skilled in the art should realize that all solutions obtained by equivalent substitutions and obvious changes made based on the description and illustrations of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An external dust collection device for a dust collector that removes silica dust, characterized in that, include: The system includes a dust collection box, a mixer, a dust inlet pipe, a dust outlet pipe, an air filter, and a dust collector. The lower end of the dust inlet pipe extends into the dust collection box, and the upper end of the dust inlet pipe is connected to the dust collector. The lower end of the dust outlet pipe extends into the dust collection box, and the upper end of the dust outlet pipe is connected to the air filter. The mixer is installed on the top of the dust collection box, with its lower end extending into the dust collection box, and is located between the dust inlet pipe and the dust outlet pipe. A sediment discharge port is provided at the bottom of the dust collection box, and an automatic water inlet pipe is provided at the top of the dust collection box. A solenoid valve is installed on the automatic water inlet pipe, and the automatic water inlet pipe is located between the mixer and the dust inlet pipe.

2. The external dust collection device for removing silica dust according to claim 1, characterized in that, Also includes: The system includes an inlet valve for receiving dust and an outlet valve for receiving dust. The inlet valve is located at the upper end of the dust inlet pipe, and the outlet valve is located at the upper end of the dust outlet pipe.

3. The external dust collection device for removing silica dust according to claim 2, characterized in that, Also includes: The dust inlet pipe includes a PVC steel wire hose, an outlet union, and an inlet union. The upper end of the dust inlet pipe is threadedly connected to one end of the PVC steel wire hose via the inlet union. The other end of the PVC steel wire hose is connected to the dust collection box of the dust collector. The upper end of the dust outlet pipe is threadedly connected to the lower end of the air filter via the outlet union.

4. The external dust collection device for removing silica dust according to claim 1, characterized in that, The ash receiving box has two baffles on its inner top wall. One baffle is located between the ash output pipe and the agitator, and the other baffle is located between the automatic water inlet and the ash input pipe. The baffles are provided with ventilation holes.

5. The external dust collection device for removing silica dust according to claim 1, characterized in that, The bottom wall of the ash receiving box is provided with several settling chambers, which are arranged in a triangular shape.

6. The external dust collection device for removing silica dust according to claim 5, characterized in that, The ash receiving box is equipped with a sewage outlet pipe, which is connected to the interior of the settling chamber. One end of the sewage outlet pipe extends out of the ash receiving box, and one end of the sewage outlet pipe has a sewage outlet for the settled material. A sewage ball valve is also provided at one end of the sewage outlet pipe.

7. The external dust collection device for removing silica dust according to claim 4, characterized in that, Also includes: The gas collection box includes a displacement gas inlet pipe and a gas detection pipe. The lower end of the gas detection pipe extends into the interior of the ash receiving box. The gas detection pipe is located between the baffle and the agitator. A needle valve for gas detection port is provided on the gas detection pipe. The displacement gas inlet pipe is located on the side of the ash receiving box near the dust collector. One end of the displacement gas inlet pipe extends into the interior of the ash receiving box. A displacement gas inlet needle valve is provided on the displacement gas inlet pipe.

8. The external dust collection device for removing silica dust according to claim 7, characterized in that, Also includes: The level gauge is installed on the outer wall of the ash receiving box near the dust collector, and is located below the displacement gas inlet pipe. Both the level gauge and the solenoid valve are connected to an external control system.

9. The external dust collection device for removing silica dust according to claim 4, characterized in that, The bottom wall of the ash receiving box is provided with two overflow plates, and each of the baffles is positioned directly opposite one of the overflow plates.

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