Explosive production anti-static device

Abstract

The utility model provides a kind of explosive production anti-static device, by the form of ion generator and atomizer of combination setting, reduce the dryness of staff protective clothing, to reduce the attachment ability of static electricity. By setting dust pad, corrugated surface step board, touch switch and the like components, ensure that the body surface static electricity is removed, while setting conducting plate, avoid the static electricity that staff body surface carries in production area is not completely removed. The utility model provides explosive production anti-static device, simple operation, structure is simple, failure rate is low, maintenance cost is low, can safely and simply remove the static electricity of staff body surface, meet the static electricity reduction demand of explosive production process.

Description

Technical Field

[0001] This utility model belongs to the field of explosives production technology, and in particular relates to an anti-static device for explosives production. Background Technology

[0002] In explosives production, a safe and static-free production environment is crucial, especially in the production of powdered explosives. The raw materials are mostly powdery substances, and many are flammable and explosive. If static electricity is generated during the production process, it can easily cause safety accidents. Therefore, it is necessary to continuously strengthen the elimination and prevention of static electricity during the production process.

[0003] Currently used methods for static electricity elimination and prevention mostly involve placing conductive contact objects at the edges of the production area, allowing workers to conduct static electricity off their bodies through contact. However, in explosives production and processing, workers need to wear protective clothing with insulating properties to ensure their safety. This type of clothing is mostly made of synthetic materials, which are very prone to static electricity accumulation. Therefore, ordinary static electricity elimination methods cannot effectively prevent static electricity. Summary of the Invention

[0004] To address the problems existing in the background art, this utility model provides an anti-static device for explosive production. The device has a compact structure, is simple to use, and has a good static electricity removal effect, which can effectively prevent static electricity from being brought into the work area.

[0005] This utility model provides an anti-static device for explosive production, including a chamber body, an inlet door, an outlet door, an anti-static rack, and a drive assembly;

[0006] Both the inbound and outbound doors are swing doors, installed on the inbound and outbound sides of the warehouse body, respectively.

[0007] There are two electrostatic removal racks, which are slidably and vertically installed on the inner walls of the left and right sides of the chamber. Each inner wall of the chamber has a fabric cavity, and a drive assembly is installed in each of the two fabric cavities. The two drive assemblies are connected to the two electrostatic removal racks. The drive assemblies drive the two electrostatic removal racks to slide up and down. The two electrostatic removal racks are symmetrically arranged and together enclose the electrostatic removal area. The electrostatic removal area is provided with a step plate on the bottom plate of the chamber. When the worker enters the chamber and stands on the step plate, he controls the operation of the drive assembly to drive the two electrostatic removal racks to slide up and down, thereby removing static electricity from the worker's body surface.

[0008] Each electrostatic removal rack includes a mounting base and a U-shaped frame. The U-shaped frame is fixedly connected to the mounting base, and the mounting base is driven by a drive assembly. The U-shaped frame extends horizontally into the internal cavity of the chamber. An ion generator is installed on the inner wall of the U-shaped frame. Spray nozzles are opened on both sides of the U-shaped frame above and below the ion generator. Water mist generated by the atomizer built into the U-shaped frame is sprayed out from the spray nozzles on both sides. Ions generated by the ion generator adhere to the water mist. The water mist with ions attached slides back and forth with the rise and fall of the electrostatic removal rack and adheres to the surface of the worker's body, removing the static electricity attached to the worker's body.

[0009] The drive assembly includes a drive motor, a lead screw, and a guide rod. The drive motor is fixedly mounted on the top of the fabric cavity. The lead screw is vertically rotatable within the fabric cavity. The guide rod is vertically fixed within the fabric cavity. The drive end of the drive motor is coaxially and fixedly connected to the lead screw. The mounting base has two vertical through holes corresponding to the lead screw and the guide rod, respectively. One through hole is a light hole and is fitted onto the guide rod. A sliding sleeve is coaxially rotatably mounted in the other through hole and is fitted onto the lead screw.

[0010] A touch switch is fixedly installed on the inner wall of the chamber, and the touch switch is electrically connected to the drive assembly.

[0011] The bottom plate inside the silo is also equipped with a dust-adhesive pad and a conductive plate. The dust-adhesive pad and the conductive plate are located on both sides of the step plate, with the dust-adhesive pad located on the entrance side of the silo and the conductive plate located on the exit side of the silo.

[0012] The inner walls of the chamber on both sides of the step are provided with exhaust ducts, and the air outlets of the two exhaust ducts are located on the outer wall of the chamber entrance side, and exhaust fans are installed on the two air outlets.

[0013] A through groove is provided on the door body of the exit door, and an air intake filter is fixedly installed on the through groove.

[0014] The electrostatic removal frame also includes multiple stabilizing rods, which are rotatably mounted on the mounting base and the opposing side surfaces of the U-shaped frame, and the rotation axes of the multiple stabilizing rods are all horizontally set.

[0015] Beneficial effects

[0016] This utility model provides an anti-static device for explosives production. It removes static electricity by combining an ion generator and an atomizer. The moist water mist reduces the dryness of workers' protective clothing, decreasing static electricity adhesion and improving safety. Simultaneously, adhesive mats ensure the cleanliness of workers' shoes; corrugated step treads ensure stability and prevent slippage; and conductive plates provide reliable static discharge, preventing residual static electricity from entering the production area and ensuring production safety. Workers entering the chamber and pressing a touch switch activates multiple components simultaneously, completing the static electricity removal process and preventing static electricity from entering the production area. This anti-static device for explosives production is simple to operate, has a concise structure, low failure rate, and low maintenance costs. It safely and easily discharges static electricity from workers' bodies, fully meeting the static electricity reduction requirements of the explosives production process. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the outlet door from the opening angle of this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the warehouse door from the opening angle of this utility model;

[0020] Figure 4 This is a schematic diagram of the electrostatic removal frame structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the warehouse structure of this utility model;

[0022] In the diagram: 1. Bin body; 2. Inlet door; 3. Outlet door; 4. Static electricity removal rack; 5. Drive assembly;

[0023] 11. Adhesive mat; 12. Step tread; 13. Conductive plate; 14. Exhaust fan; 15. Exhaust duct; 16. Fabric cavity;

[0024] 31. Air intake filter;

[0025] 41. Touch switch; 42. Mounting base; 43. U-shaped frame; 44. Sliding sleeve; 45. Optical aperture; 46. Ion generator; 47. Spray nozzle; 48. Stabilizing bar;

[0026] 51. Drive motor; 52. Lead screw; 53. Guide rod. Detailed Implementation

[0027] The present invention will now be described in further detail with reference to the accompanying drawings.

[0028] An antistatic device for explosives production includes a chamber 1, an inlet door 2, an outlet door 3, static removal racks 4, and a drive assembly 5. The inlet door 2 and outlet door 3 are both swing doors, installed on the inlet and outlet sides of the chamber 1, respectively. When closed, the inlet door 2 and outlet door 3 enclose the interior of the chamber 1 into a sealed space. Two static removal racks 4 are slidably and vertically mounted on the left and right side walls of the chamber 1. Each side wall of the chamber 1 has a fabric cavity 16, in which a drive assembly 5 is installed. The two drive assemblies 5 are connected to the two static removal racks 4, and their operation drives the two static removal racks 4 to reciprocate and slide vertically. The two static removal racks 4 are symmetrically arranged and together form a static removal area. A step plate 12 is installed on the bottom plate inside the chamber 1 within the static removal area. Workers enter the chamber 1, stand on the step plate 12, and control the drive assembly 5 to drive the two static removal racks 4 to reciprocate and slide vertically, thus removing static electricity from the worker's body surface.

[0029] Each of the electrostatic removal racks 4 includes a mounting base 42 and a U-shaped frame 43. The U-shaped frame 43 is fixedly connected to the mounting base 42. The mounting base 42 is slidably inserted into the fabric cavity 16 and is connected to the drive assembly 5. The U-shaped frame 43 extends horizontally through the cavity wall of the fabric cavity 16 into the inner cavity of the chamber 1. An ion generator 46 is installed on the inner wall of the U-shaped frame 43. The ion generator 46 is located in the center of the vertical direction of the U-shaped frame 43. The ion generator 46 extends from one end of the U-shaped frame 43 to the other end. Spray nozzles 47 are opened on the upper and lower sides of the U-shaped frame 43. The water mist generated by the atomizer built into the U-shaped frame 43 is sprayed out from the two spray nozzles 47. The ions generated by the ion generator 46 adhere to the water mist. The water mist with ions attached adheres to the surface of the worker's body as the electrostatic removal rack 4 moves up and down and slides back and forth, removing the static electricity attached to the worker's body.

[0030] The drive assembly 5 includes a drive motor 51, a lead screw 52, ​​and a guide rod 53. The drive motor 51 is fixedly mounted on the top of the fabric cavity 16. The lead screw 52 is vertically rotatably mounted in the fabric cavity 16. The guide rod 53 is vertically fixedly mounted in the fabric cavity 16. The drive end of the drive motor 51 is coaxially fixedly connected to the lead screw 52. When the drive motor 51 operates, it drives the lead screw 52 to rotate. The mounting base 42 has two vertical through holes corresponding to the lead screw 52 and the guide rod 53, respectively. One through hole is a light hole 45, which is fitted onto the guide rod 53. A sliding sleeve 44 is coaxially rotatably mounted in the other through hole. The sliding sleeve 44 is axially limited in the other through hole and is fitted onto the lead screw 52. The lead screw 52 is driven by the drive motor 51 to rotate, that is, the mounting base 42 is driven to slide up and down in the vertical direction through the sliding sleeve 44, which causes the static electricity removal frame 4 to slide up and down.

[0031] A touch switch 41 is fixedly installed on the inner wall of the chamber 1. The touch switch 41 is electrically connected to the drive assembly 5. Pressing the touch switch 41 will drive the drive assembly 5 to operate, thereby driving the static removal frame 4 to rise and slide. At the same time, the touch switch 41 is electrically connected to the ion generator 46 and the atomizer. Pressing the touch switch 41 can synchronously control the operation of the ion generator 46 and the atomizer.

[0032] The bottom plate inside the chamber 1 is also equipped with a dust-adhesive pad 11 and a conductive plate 13. The dust-adhesive pad 11 and the conductive plate 13 are located on both sides of the step plate 12. The dust-adhesive pad 11 is located on the entrance side of the chamber 1, and the conductive plate 13 is located on the exit side of the chamber 1. The dust-adhesive pad 11 removes dust and impurities from the soles of the workers' shoes on the entrance side, preventing impurities from being brought into the work area and ensuring the purity of the work area. The conductive plate 13 is made of conductive metal material. Stepping on the conductive plate 13 can conduct away any static electricity that has not been completely removed from the workers' bodies, ensuring that the workers can fully remove static electricity in the chamber 1.

[0033] Exhaust ducts 15 are provided on the inner walls of the chamber 1 on both the left and right sides of the step plate 12. The air outlets of the two exhaust ducts 15 are located on the outer wall of the chamber 1 on the entrance side. Exhaust fans 14 are installed on the two air outlets. The redundant water mist with ions in the chamber 1 is discharged from the chamber 1 through the exhaust ducts 15 by the operation of the exhaust fans 14.

[0034] Both the inlet door 2 and the outlet door 3 are equipped with viewing windows. The outlet door 3 has a through groove, and an air intake filter 31 is fixedly installed on the through groove. While the exhaust fan 14 draws out the water mist in the chamber 1, dry air is replenished into the chamber 1 through the air intake filter 31 to maintain stable air pressure inside the chamber 1 and prevent the inlet door 2 and the outlet door 3 from being unable to open.

[0035] The standing surface of the step plate 12 is corrugated, which can effectively prevent water mist generated by the staff during static electricity removal from adhering to the surface of the step plate 12 and causing it to become slippery, thereby ensuring that the staff can safely perform static electricity removal.

[0036] The electrostatic removal frame 4 also includes multiple stabilizing rods 48, which are rotatably mounted on the opposing side surfaces of the mounting base 42 and the U-shaped frame 43. The rotation axes of the multiple stabilizing rods 48 are all horizontally set. When the electrostatic removal frame 4 is installed in the chamber 1, the opposing stabilizing rods 48 roll against the inner wall of the chamber 1 and the cavity wall of the cloth-filling cavity 16 to ensure the stability of the electrostatic removal frame 4 while reducing the friction between the mounting base 42 and the U-shaped frame 43 and the cavity wall, thereby reducing drive losses.

[0037] Both the inbound door 2 and the outbound door 3 are equipped with door closers to ensure that both the inbound door 2 and the outbound door 3 can be closed automatically.

[0038] During work:

[0039] The device is fixedly installed in the cleaning passage where staff enter the work area, and the entrance and exit sides of the chamber 1 are respectively set in two isolated spaces (that is, the device is fixedly installed on the wall, and the entrance and exit sides of the chamber 1 are located in two separate rooms). The initial position of the static electricity removal rack 4 is located at the top of the chamber 1.

[0040] Staff members open the entrance door 2 and enter the chamber 1. They step over the adhesive mat 11 to remove impurities from the soles of their shoes, and then stand on the step plate 12. The staff member presses the touch switch 41 by hand or foot to activate the drive assembly 5, ion generator 46, and atomizer. The electrostatic removal frame 4 begins to descend and slide, enclosing the staff member in the electrostatic removal area. Ionized water mist falls onto the staff member's body surface to eliminate static electricity. After the electrostatic removal frame 4 descends to the bottom, the lead screw 52 reverses, causing the electrostatic removal frame 4 to return to the top of the chamber 1. During the ascent of the electrostatic removal frame 4, the ion generator 46 and atomizer continue to work, thoroughly removing static electricity from the staff member's body surface. After the electrostatic removal frame 4 rises to the top of the chamber 1, the drive assembly 5, ion generator 46, and atomizer all stop working.

[0041] After the static electricity removal rack 4 rises to the top of the chamber 1, the staff can leave the step plate 12 and step onto the conductive plate 13 to carry out the final protective static electricity removal. At this point, the staff can open the exit door 3 and leave the chamber 1.

[0042] The exhaust fan 14 is always running to ensure that the chamber 1 remains dry. Air is supplied to the chamber 1 through the air intake filter 31 to maintain stable air pressure in the chamber 1.

Claims

1. An anti-static device for explosives production, characterized in that: The system includes a storage chamber (1), an inlet door (2), an outlet door (3), an electrostatic removal rack (4), and a drive assembly (5). The inlet door (2) and outlet door (3) are both swing doors and are installed on the inlet side and outlet side of the storage chamber (1), respectively. The two electrostatic removal racks (4) are slidably and liftably installed on the left and right side walls of the storage chamber (1), respectively. Fabric cavities (16) are opened in the left and right side walls of the storage chamber (1), and drive assemblies (5) are installed in the two fabric cavities (16), respectively. The two drive assemblies (5) are respectively connected to the storage chamber (1). Two static removal racks (4) are connected by a drive assembly (5). The drive assembly (5) drives the two static removal racks (4) to move back and forth. The two static removal racks (4) are symmetrically arranged and together enclose the static removal area. The static removal area is provided with a step plate (12) on the bottom plate inside the chamber (1). The staff enters the chamber (1) and stands on the step plate (12). The drive assembly (5) is adjusted to drive the two static removal racks (4) to move back and forth, thereby removing static electricity from the staff's body surface.

2. The anti-static device for explosive production according to claim 1, characterized in that: Each of the electrostatic removal racks (4) includes a mounting base (42) and a U-shaped frame (43). The U-shaped frame (43) is fixedly connected to the mounting base (42), and the mounting base (42) is connected to the drive assembly (5). The U-shaped frame (43) extends horizontally into the inner cavity of the chamber (1). An ion generator (46) is installed on the inner wall of the U-shaped frame (43). Spray nozzles (47) are opened on the upper and lower sides of the U-shaped frame (43) of the ion generator (46). The water mist generated by the atomizer built into the U-shaped frame (43) is sprayed out from the two spray nozzles (47). The ions generated by the ion generator (46) adhere to the water mist. The water mist with ions adheres to the workers' bodies as the electrostatic removal rack (4) moves up and down and slides back and forth, removing the static electricity attached to the workers' bodies.

3. The anti-static device for explosive production according to claim 2, characterized in that: The drive assembly (5) includes a drive motor (51), a lead screw (52), and a guide rod (53). The drive motor (51) is fixedly installed on the top of the fabric cavity (16). The lead screw (52) is vertically rotatably installed in the fabric cavity (16). The guide rod (53) is vertically fixedly installed in the fabric cavity (16). The drive end of the drive motor (51) is coaxially fixedly connected to the lead screw (52). The mounting base (42) has two vertical through holes corresponding to the lead screw (52) and the guide rod (53), respectively. One through hole is a light hole (45) and is fitted on the guide rod (53). The other through hole is coaxially rotatably installed with a sliding sleeve (44) which is fitted on the lead screw (52).

4. An anti-static device for explosive production according to claim 1 or 2, characterized in that: A touch switch (41) is fixedly installed on the inner wall of the compartment (1), and the touch switch (41) is electrically connected to the drive assembly (5).

5. The anti-static device for explosive production according to claim 3, characterized in that: A touch switch (41) is fixedly installed on the inner wall of the compartment (1), and the touch switch (41) is electrically connected to the drive assembly (5).

6. An anti-static device for explosives production according to claim 1 or 2, characterized in that: The bottom plate of the chamber (1) is also provided with a dust-adhesive pad (11) and a conductive plate (13). The dust-adhesive pad (11) and the conductive plate (13) are located on both sides of the step plate (12). The dust-adhesive pad (11) is located on the entrance side of the chamber (1), and the conductive plate (13) is located on the exit side of the chamber (1). The inner walls of the chamber (1) on both sides of the step plate (12) are provided with exhaust ducts (15). The air outlets of the two exhaust ducts (15) are located on the outer wall of the entrance side of the chamber (1), and exhaust fans (14) are installed on the two air outlets.

7. The anti-static device for explosive production according to claim 5, characterized in that: The bottom plate of the chamber (1) is also provided with a dust-adhesive pad (11) and a conductive plate (13). The dust-adhesive pad (11) and the conductive plate (13) are located on both sides of the step plate (12). The dust-adhesive pad (11) is located on the entrance side of the chamber (1), and the conductive plate (13) is located on the exit side of the chamber (1). The inner walls of the chamber (1) on both sides of the step plate (12) are provided with exhaust ducts (15). The air outlets of the two exhaust ducts (15) are located on the outer wall of the entrance side of the chamber (1), and exhaust fans (14) are installed on the two air outlets.

8. The anti-static device for explosive production according to claim 7, characterized in that: The exit door (3) has a through groove, and an air intake filter is fixedly installed on the through groove; the standing surface of the step plate (12) is corrugated.

9. An anti-static device for explosives production according to claim 1 or 2, characterized in that: The electrostatic removal frame (4) also includes multiple stabilizing rods (48), which are rotatably mounted on the opposing side surfaces of the mounting base (42) and the U-shaped frame (43), and the rotation axes of the multiple stabilizing rods (48) are all horizontally set.

10. An anti-static device for explosives production according to claim 8, characterized in that: The electrostatic removal frame (4) also includes multiple stabilizing rods (48), which are rotatably mounted on the opposing side surfaces of the mounting base (42) and the U-shaped frame (43), and the rotation axes of the multiple stabilizing rods (48) are all horizontally set.

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