An explosion-proof wet type aluminum-magnesium dust polishing workbench

Abstract

The utility model discloses an explosion -proof wet type aluminum magnesium dust polishing workstation relates to safety production equipment technical field, and this workstation includes box, is equipped with operating area, settlement area and ventilation system in the box, is provided with the pressure -relief piece on the box, the operating area is located in the middle part of the box, including the wave -shaped deflector of setting in the inner wall of the box, and the water flow injection device of setting in the upper end of the box, the settlement area is located in the bottom of the box, including the settlement board and the drain of echelon, the ventilation system includes the air outlet of setting on the lateral wall of the box, and the exhaust device that is connected with the air outlet, the utility model discloses setting pressure -relief piece, combines water flow injection device and ventilation system, reduces dust concentration from the source, and double -safeguard explosion -proof safety, and the wave -shaped deflector guides the steady flow of water flow, and cooperates settlement area and ventilation system, forms the complete processing flow of " water curtain capture - settlement separation - exhaust purification", reduces dust suspension and diffusion risk.

Description

Technical Field

[0001] This utility model relates to the field of safety production equipment technology, specifically an explosion-proof wet aluminum-magnesium dust grinding workbench. Background Technology

[0002] While existing grinding workbenches have made some progress in dust collection and wet treatment in current technological developments, they still have many shortcomings. For example, traditional dry dust removal methods have limited capacity to handle high-humidity, high-viscosity dust and cannot completely eliminate the explosion hazard caused by suspended dust. Patent CN113426232B discloses an environmentally friendly purification device for treating grinding dust, which uses a water film formed on the surface of a water wheel to achieve wet dust removal. However, the wet unit is located outside the grinding area, and the dust remains dry initially, posing an ignition risk. Furthermore, this device lacks an explosion-proof design, failing to meet the safety requirements for combustible metal dust such as aluminum and magnesium powder. Patent CN103624688B discloses a dust-collecting grinding table that uses a semi-enclosed space and a scrubber to treat dust-laden gas. However, its wet treatment only targets gaseous dust, while the grinding area remains dry, making it prone to localized dust concentration buildup and exceeding standards. Furthermore, existing technologies generally lack deep integration of "explosion-proof" and "wet operation," failing to fundamentally address the coupled risks among the five elements of dust explosion. This is particularly true in grinding scenarios involving flammable materials such as aluminum-magnesium dust, wood, and plastics, where safety and adaptability still need improvement. Therefore, a new technological solution is urgently needed to overcome these shortcomings and achieve safer, more efficient, and more adaptable functionality. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide an explosion-proof wet aluminum-magnesium dust grinding workbench. To achieve the above objective, the technical solution adopted by this utility model is as follows:

[0004] An explosion-proof wet aluminum-magnesium dust grinding workbench includes a housing, the housing of which is provided with an operating area, a settling area and a ventilation system;

[0005] The housing is equipped with pressure relief plates;

[0006] The operating area is located in the middle of the box and includes a corrugated guide plate on the inner wall of the box and a water jet device on the upper end of the box.

[0007] The settling zone is located at the bottom of the box and includes a stepped settling plate and a drainage outlet;

[0008] The ventilation system includes an exhaust vent installed on the side wall of the enclosure, and an exhaust device connected to the exhaust vent.

[0009] Furthermore, the water jetting device includes a jetting pipe, multiple nozzles disposed on the jetting pipe, and an inlet pipe connected to an external water source and the jetting pipe; a flow regulating valve is disposed on the inlet pipe.

[0010] Furthermore, the nozzle is tilted and faces the guide plate at an angle of 30°-45°, and a distance of 10-15cm is maintained between the nozzle and the guide plate.

[0011] Furthermore, the side of the enclosure is provided with a transparent observation port and an operation port, the edges of which are covered with soft material.

[0012] Furthermore, the enclosure is welded from corrosion-resistant metal plates, and the inner wall is coated with an electrostatic discharge coating with a thickness of 0.1-0.3mm.

[0013] Furthermore, a workpiece clamping device is provided in the operating area, and a grid is provided below the workpiece clamping device.

[0014] Furthermore, the settling plate is welded from multiple layers of metal plates, with a height difference of 3-5 cm between adjacent metal plates; a horizontal gap of 5-10 mm between adjacent metal plates; and the surface of the metal plates is polished.

[0015] Furthermore, the exhaust device includes a duct connected to the exhaust port and an exhaust fan connected to the duct; a filter screen is provided at the exhaust port.

[0016] Furthermore, the pressure relief plate is a thin aluminum alloy plate with a thickness of 0.5-1mm.

[0017] Furthermore, the inner wall of the air duct is coated with an anti-corrosion coating; the mesh is made of a corrosion-resistant metal material.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] (1) This utility model divides the box into an operation area, a settling area, and a ventilation system, achieving clear functional zoning and coordinated operation of each link, thereby improving space utilization and dust treatment efficiency. By setting pressure relief plates, the box can automatically rupture and release energy when the pressure exceeds the standard. Combined with wet dust removal (water jet device) and ventilation system, the dust concentration is reduced from the source, providing double protection against explosion. The wave-shaped guide plate guides the water flow smoothly, which, together with the settling area and ventilation system, forms a complete treatment process of "water curtain capture - settling separation - exhaust purification", reducing the risk of dust suspension and diffusion.

[0020] (2) In this utility model, the nozzles are tilted at 30°-45° toward the guide plate, and the spacing is controlled at 10-15cm to form a continuous and comprehensive water curtain. This can prevent the water flow from directly impacting the workpiece or the operator's hands, ensuring both dust capture efficiency and improving operating comfort. The design of the tilt angle and spacing can also reduce turbulence, allowing the water flow to flow along the preset path of the guide plate, avoiding dust diffusion caused by water flow turbulence, and enhancing the contact and adsorption effect between dust and water.

[0021] (3) The present invention is equipped with a transparent observation port to facilitate real-time monitoring of the operation, and the progress can be grasped without opening the box door; the box door with the operation port and the soft material edge not only ensures that the operator's hands can be flexibly inserted, but also effectively prevents dust from overflowing and reduces environmental pollution.

[0022] (4) The housing of this utility model is welded with corrosion-resistant metal plates, which can extend the service life of the equipment; the 0.1-0.3mm electrostatic conductive coating on the inner wall can effectively eliminate the static electricity accumulation caused by dust friction (resistivity less than 10). 6 (Ω·cm), to fundamentally avoid the risk of explosion caused by static sparks.

[0023] (5) This utility model includes a workpiece clamping device and a grid. The workpiece clamping device ensures that the workpiece is firmly fixed during the grinding process, improving the accuracy and safety of the operation. The grid can temporarily place the workpiece to be ground or store tools, preventing tools from scattering and affecting the water flow and dust settling path, and keeping the operating area orderly.

[0024] (6) The stepped settling plate of this utility model achieves three core functions through the stepped structure of multiple metal plates (height difference between adjacent plates 3-5cm, horizontal gap 5-10mm): First, it gradually slows down the water flow, prolongs the dust residence time, and allows coarse and fine particles to settle in layers, improving the solid-liquid separation efficiency; second, it suppresses secondary re-entrainment, the horizontal gap design reduces water flow disturbance, and the polished surface reduces dust adhesion, avoiding the risk of explosion caused by local concentration exceeding the standard; third, it optimizes the water flow path, forming "multi-stage filtration" and reducing drainage outlet blockage. The stepped settling plate is the key to connecting wet dust removal and explosion-proof safety, ensuring the efficient and stable operation of the system.

[0025] (7) The present invention is equipped with an exhaust fan to continuously draw out the air in the box. Combined with the exhaust port filter screen to intercept large particulate impurities, the dust concentration in the operating area can be reduced, and the risk of inhalation by operators can be reduced. Attached Figure Description

[0026] Figure 1 The overall external structure diagram of the workbench provided by this utility model;

[0027] Figure 2 A schematic diagram of the internal structure of the workbench provided by this utility model.

[0028] The corresponding names of the attached figures are: 1-box body, 2-pressure relief plate, 3-operation port, 4-observation port, 5-box door, 6-guide plate, 7-workpiece clamping device, 8-water jet device, 9-support, 10-grid, 11-settling plate, 12-drain outlet, 13-ventilation outlet, 14-water inlet pipe. Detailed Implementation

[0029] The present invention will be further described below with reference to the accompanying drawings and embodiments. The embodiments of the present invention include, but are not limited to, the following embodiments.

[0030] like Figure 1 and 2 As shown, this utility model provides an explosion-proof wet aluminum-magnesium dust grinding workbench, including a housing 1, an operating area, a settling area and a ventilation system, with each part working together to achieve safe and efficient dust treatment.

[0031] The enclosure 1, serving as the basic frame of the equipment, is welded from corrosion-resistant metal plates and has a rectangular shape. Its internal space is rationally partitioned into independent functional areas for operation, settling, and ventilation, ensuring orderly operation of each component while maximizing space utilization. To eliminate static electricity hazards, the inner wall of enclosure 1 is coated with an electrostatic eliminator coating. This coating is formed through a spraying process, covering the entire inner wall surface of the enclosure. Preferably, the thickness of this electrostatic eliminator coating is 0.1-0.3 mm. The resistivity of the electrostatic eliminator coating is less than 10 Ω·cm. 6 Ω·cm is used to ensure that static electricity accumulation caused by dust friction can be effectively eliminated, thus avoiding the risk of explosion caused by static sparks at the source.

[0032] The top edge of the enclosure 1 is equipped with a pressure relief plate 2, which is fixed to the outer wall of the enclosure by bolts. The plate is made of thin aluminum alloy with a thickness of 0.5-1mm. When the internal pressure of the enclosure 1 exceeds 0.1-0.2MPa, the pressure relief plate 2 will automatically break to release the overpressure energy, thereby ensuring the safe operation of the equipment. It acts as a "safety valve" for the equipment, effectively protecting the enclosure and the surrounding environment.

[0033] A transparent observation port 4, made of high-strength, impact-resistant transparent material, is provided on the side of the chamber 1. Operators can monitor the work inside the chamber in real time through the observation port 4, and can keep track of the grinding progress without opening the chamber door. Below the observation port 4, a chamber door 5 is provided, which is hinged to the chamber 1. Opening the chamber door 5 allows the workpiece to be ground to be placed inside the chamber 1. Two operating ports 3 are provided on the chamber door 5, and the edges of the operating ports 3 are covered with soft material. After placing the workpiece to be ground inside the chamber 1, the chamber door 5 is closed, and the operator can put their hands into the operating ports 3 to perform the grinding operation on the workpiece inside the chamber. This ensures operational flexibility and effectively prevents dust from escaping.

[0034] The operating area is located in the middle of the chamber 1. A corrugated guide plate 6 is bolted to the inner wall of the chamber on the side furthest from the door 5. This corrugated structure guides the water flow smoothly along a preset path, optimizing the water distribution in the operating area, minimizing turbulence, and preventing dust diffusion caused by water flow disturbance. The bottom of the guide plate 6 is connected to the settling zone, ensuring that the water and entrained dust can smoothly enter the settling stage. A workpiece clamping device 7 is installed within the operating area. This device is fixed to the inner wall of the chamber via a threaded connection to maintain workpiece stability during grinding. The installation position of the workpiece clamping device 7 can be flexibly adjusted according to the size and shape of the workpiece to accommodate different specifications of metal, wood, plastic, and other workpieces.

[0035] A water jet device 8 is installed above the operating area, and is welded and fixed to the top of the inner wall of the housing 1 via a bracket 9. The water jet device 8 includes a jet pipe and multiple nozzles. A water inlet pipe 14 is connected to the jet pipe, and a flow regulating valve is installed on the water inlet pipe 14 to control the water flow speed and jet intensity. The water inlet pipe 14 is connected to an external water source. The nozzles are designed with an inclined angle of 30°-45°, facing the guide plate. This ensures that the water curtain formed by the water flow fully covers the operating area, while avoiding direct impact of the water flow on the workpiece or the operator's hands, preventing damage to the workpiece surface and affecting the operating feel. The nozzle outlet diameter is 1-2mm, used to form a continuous water curtain covering the operating area. At the same time, a distance of 10-15cm is maintained between the nozzles of the water jet device 8 and the guide plate 6.

[0036] In addition, a grid 10 is provided below the workpiece clamping device 7. The grid is made of corrosion-resistant metal material, which can not only temporarily place the workpiece to be polished, but also store the polishing tools, making it convenient for operators to access at any time.

[0037] The settling zone, located below the operating area, consists of stepped settling plates 11. These plates are welded from multiple layers of metal plates, with a height difference of 3-5 cm between adjacent plates and a horizontal gap of 5-10 mm. This stepped structure allows the flow of dust-laden water to gradually slow down as it passes over the settling plates. The moistened dust settles step by step under the influence of gravity and water flow, effectively preventing secondary re-entrainment. The surface of the settling plates 11 is polished to reduce dust adhesion and simplify cleaning. A drain outlet 12 is located at the bottom of the settling zone, connected to external wastewater treatment equipment via a flange. Dust-laden wastewater discharged through the drain outlet can undergo professional treatment for recycling, making it both environmentally friendly and economical.

[0038] The ventilation system is located at the upper rear of the housing 1, offset from the water curtain formed by the water jet device 8, to prevent water from being drawn into the ventilation system and affecting equipment operation. The ventilation system includes an exhaust vent 13 on the side of the housing 1, a duct connected to the exhaust vent 13, and an exhaust fan connected to the duct. A filter screen with a pore size of 0.5-1mm is installed on the exhaust vent 13 to intercept large particles. The inner wall of the duct is coated with a 0.2-0.5mm thick anti-corrosion coating to resist humid environments and dust, extending the duct's service life. The exhaust fan is bolted to the end of the duct and operates at 800-1200rpm, continuously evacuating air from the housing and reducing dust concentration in the operating area. In this embodiment, an external exhaust gas treatment device is connected to the duct outlet via a flange for further purification of the discharged gas, ensuring emissions meet environmental protection requirements.

[0039] In practical application, the operating principle of this embodiment is as follows: The operator places the workpiece to be ground on the workpiece clamping device and fixes it. The position of the clamping device is adjusted according to the size and shape of the workpiece to ensure that the workpiece is firmly fixed. After closing the chamber door, the equipment is started, and the water jet device starts working, forming a continuous water curtain covering the operating area. The operator puts both hands into the operating port and uses the grinding tools to grind the workpiece. The dust generated during the grinding process quickly loses its suspension ability under the moistening effect of the water curtain and flows smoothly into the settling area along the wave-shaped guide plate with the water flow. After entering the settling area, the moistened dust settles step by step under the guidance of the stepped settling plate, and finally flows into the external wastewater treatment equipment through the drain outlet along with the water flow. At the same time, the exhaust fan of the ventilation system starts synchronously, continuously drawing out the air in the chamber. Large particulate impurities in the air are intercepted by the filter screen of the exhaust port, and the purified air is discharged through the air duct and then undergoes secondary purification by the external waste gas treatment equipment. Throughout the entire operation, the electrostatic discharge coating on the inner wall of the enclosure continuously discharges static electricity, and the pressure relief plate on the top is always on standby. This dual protection ensures that the equipment can operate stably for a long time in flammable and explosive environments.

[0040] The key to the workbench provided in this embodiment lies in the close cooperation and synergy between its various components. The overall frame design of the enclosure ensures the stability of the equipment, while the design of the electrostatic discharge coating and pressure relief plates eliminates the risk of static electricity accumulation and overvoltage from a safety perspective. The water jet device and wave-shaped guide vanes in the operating area ensure uniform water curtain coverage and smooth water flow. The stepped settling plates in the settling zone prevent secondary dust re-entrainment through gradual settling, significantly reducing the risk of explosion. The introduction of a ventilation system further optimizes the airflow organization within the enclosure, reduces dead zones, and ensures a clean and safe operating environment.

[0041] Example 2

[0042] Based on Example 1, to further optimize the water flow guidance effect, guide plates with the same structure were also installed on the two sides adjacent to the side where the guide plate 6 was installed. By adding guide plates on both sides, the water flow distribution to the sides is more uniform, further avoiding dust diffusion caused by water flow turbulence.

[0043] The above embodiments are merely one of the preferred embodiments of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications or refinements made to the main design concept and spirit of this utility model that are not of substantial significance, but solve the same technical problem as this utility model, should be included within the scope of protection of this utility model.

Claims

1. An explosion-proof wet aluminum-magnesium dust grinding workbench, comprising a housing (1), characterized in that, The enclosure (1) is equipped with an operating area, a settling area and a ventilation system; The housing (1) is equipped with a pressure relief plate (2); The operating area is located in the middle of the box (1) and includes a wave-shaped guide plate (6) on the inner wall of the box (1) and a water jet device (8) on the upper end of the box (1). The settling zone is located at the bottom of the box (1) and includes a stepped settling plate (11) and a drain outlet (12); The ventilation system includes an exhaust port (13) disposed on the side wall of the housing (1) and an exhaust device connected to the exhaust port (13).

2. The explosion-proof wet aluminum-magnesium dust grinding workbench according to claim 1, characterized in that, The water jetting device (8) includes a jetting pipe, multiple nozzles installed on the jetting pipe, and an inlet pipe (14) connected to an external water source and the jetting pipe; a flow regulating valve is installed on the inlet pipe (14).

3. The explosion-proof wet aluminum-magnesium dust grinding workbench according to claim 2, characterized in that, The nozzle is tilted and faces the guide plate, with an tilt angle of 30°-45°, and a distance of 10-15cm is maintained between the nozzle and the guide plate (6).

4. The explosion-proof wet aluminum-magnesium dust grinding workbench according to claim 1 or 3, characterized in that, The box (1) has a transparent observation port (4) on its side and a box door (5) with an operation port (3), the edges of which are wrapped with soft material.

5. The explosion-proof wet aluminum-magnesium dust grinding workbench according to claim 4, characterized in that, The enclosure (1) is made of corrosion-resistant metal plate welded together, and the inner wall is coated with an electrostatic discharge coating with a thickness of 0.1-0.3mm.

6. The explosion-proof wet aluminum-magnesium dust grinding workbench according to claim 5, characterized in that, The operating area is equipped with a workpiece clamping device (7), and a grid (10) is provided below the workpiece clamping device (7).

7. The explosion-proof wet aluminum-magnesium dust grinding workbench according to claim 6, characterized in that, The settling plate (11) is made of multiple layers of metal plates welded together. The height difference between adjacent metal plates is 3-5cm; the horizontal gap between adjacent metal plates is 5-10mm; and the surface of the metal plates is polished.

8. The explosion-proof wet aluminum-magnesium dust grinding workbench according to claim 7, characterized in that, The exhaust device includes a duct connected to the exhaust port (13) and an exhaust fan connected to the duct; a filter screen is provided at the exhaust port (13).

9. The explosion-proof wet aluminum-magnesium dust grinding workbench according to claim 8, characterized in that, The pressure relief plate (2) is a thin aluminum alloy plate with a thickness of 0.5-1mm.

10. The explosion-proof wet aluminum-magnesium dust grinding workbench according to claim 9, characterized in that, The inner wall of the air duct is coated with an anti-corrosion coating; the mesh (10) is made of corrosion-resistant metal material.

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