Chemical raw material static electricity removing safe feeding device

Abstract

This invention discloses a safe feeding device for eliminating static electricity in chemical raw materials, solving safety issues. The device includes a feeding hopper, a telescopic hose, and a magnetic chuck. An equipotential material distribution component and a static eliminator are integrated within the feeding hopper, and a grounding wire connection point is fixedly installed on the outside of the hopper. The telescopic hose is mechanically fixed to the discharge port of the feeding hopper, and the magnetic chuck is mechanically fixed to the lower end of the telescopic hose. The equipotential material distribution component divides the internal space of the feeding hopper into two parts, and at least one static eliminator is installed in the space below it. This technology uses grounding and a static eliminator together to achieve dual protection, minimizing the static charge in the chemical raw materials. The entire system is in an equipotential state, preventing spark discharge caused by potential differences and reducing the amount of air in the feeding hopper, which is of positive significance for ensuring safe production.

Description

Technical Field

[0001] This utility model relates to the field of chemical safety production facilities technology, and in particular to a safe feeding device for eliminating static electricity in chemical raw materials. Background Technology

[0002] During chemical feedstock feeding processes, such as when chemical raw materials are transported in pipelines, poured from containers, or sprayed in powder or liquid form, intense friction and collisions occur between them and the pipe walls, container walls, and particles, generating a large amount of static charge. This static charge needs to be eliminated promptly. If the static charge is not eliminated in time, it will accumulate to a certain level and cause electrostatic discharge. If flammable materials (such as dust clouds) are present in the vicinity, it can easily lead to serious fires or explosions. Therefore, static electricity is a significant factor threatening safe production in chemical processes, especially since it can easily generate sparks during feedstock feeding, potentially leading to fires or explosions. Therefore, static electricity elimination is essential during the feedstock feeding process.

[0003] For example, Chinese patent document CN2873308Y discloses an air-material mixing and jet feeding device. The device consists of a feeding hopper, a feeding pipe, a compressed air nozzle, and a venturi tube. The raw material is mixed with compressed air outside the working chamber, dispersed into small particles, and then enters the working chamber. It then reacts with compressed air, resulting in good dispersion and preventing the raw material from clumping. However, this feeding structure has an electrostatic problem, that is, the raw material will generate frictional static electricity during high-speed movement, causing production safety hazards. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a safe feeding device for eliminating static electricity in chemical raw materials. Its technical objective is to provide a feeding device with built-in static electricity elimination function, suitable for the feeding and production of flammable and explosive chemical raw materials.

[0005] The technical solution adopted by this utility model to solve its technical problem is as follows: A safe feeding device for eliminating static electricity in chemical raw materials is characterized by comprising a feeding hopper, a telescopic hose, and a magnetic chuck. An equipotential material distribution component and a static eliminator are integrated within the feeding hopper. A grounding wire connection point is fixedly installed on the outside of the feeding hopper, and the grounding wire connection point is grounded via a conductor. The telescopic hose is mechanically fixed to the discharge port of the feeding hopper, and the magnetic chuck is mechanically fixed to the lower end of the telescopic hose. The equipotential material distribution component divides the internal space of the feeding hopper into two parts, and at least one static eliminator is installed in the space below it.

[0006] The equipotential material distribution assembly includes an annular fixed cylinder with conductive properties, arc-shaped fan blades, and a conical material distribution cover. The conical material distribution cover and the annular fixed cylinder are arranged concentrically, and multiple arc-shaped fan blades are welded and fixed between the conical material distribution cover and the annular fixed cylinder. There are material distribution channels between the multiple equally spaced arc-shaped fan blades.

[0007] The annular fixed cylinder is attached to and anchored to the inner wall of the feeding hopper.

[0008] Furthermore, the arc-shaped fan blades are provided with a number of perforated holes at equal intervals. These perforated holes can be round, square, or other shapes, giving the arc-shaped fan blades a perforated structural feature.

[0009] Furthermore, the arc-shaped fan blades are welded and fixed in a spiral rotation manner, which can create a better impact on the process of chemical raw materials falling.

[0010] Furthermore, the feeding hopper is a cone-shaped hopper, and connecting flanges are provided at the upper feed port and the lower discharge port.

[0011] Furthermore, the telescopic hose is a steel-plastic composite structure hose.

[0012] Furthermore, the telescopic hose is a plastic-steel composite pipe composed of metal flanges at both ends and a corrugated pipe in the middle.

[0013] Furthermore, the outer wall of the corrugated pipe is a flexible rubber layer, and the inner side is a stainless steel wire braid. The stainless steel wire braid is attached to the inner wall of the rubber pipe, and the stainless steel wire braid is welded to the metal flange to form an equipotential design.

[0014] Furthermore, a strong magnetic block is embedded inside the magnetic chuck.

[0015] Furthermore, at least one micro vibration motor is fixedly installed on the outer wall of the feeding hopper. By turning on the micro vibration motor, the contact efficiency of the chemical raw materials when passing through the equipotential distribution component is improved.

[0016] The beneficial effects of this utility model are: The application of this technology effectively addresses the electrostatic risks associated with feeding chemical raw materials (powders or fine particles), preventing flash explosions. This technology utilizes both grounding and static eliminators to provide dual protection, minimizing the electrostatic charge in the chemical raw materials. The entire system remains at an equipotential state, preventing spark discharges caused by potential differences, and reducing the amount of air in the feeding hopper. This is of positive significance for ensuring safe production.

[0017] This technology, through the design of a telescopic flexible hose and a magnetic chuck, allows the magnetic chuck to be seamlessly connected to the opening of the chemical tank, preventing the chemical raw materials from coming into contact with air during the feeding process and avoiding direct impact on the inner wall of the tank after mixing with air, thus providing better safety performance. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention.

[0019] Figure 2 for Figure 1 The top view shows the layout of the upper port.

[0020] Figure 3 This is a full sectional view of the present invention.

[0021] Figure 4 This is a cross-sectional view of the feeding hopper, showing its three-dimensional state.

[0022] Figure 5 This is a 3D view of the telescopic hose.

[0023] Figure 6 This is a cross-sectional view of the telescopic hose.

[0024] Figure 7 This is a force diagram of a magnetic chuck.

[0025] In the picture: 100. Feeding hopper; 200. Telescopic flexible hose; 300. Magnetic chuck; 310. Strong magnetic block; 400. Equipotential material distribution assembly; 410. Annular fixed cylinder; 420. Arc-shaped fan blade; 421. Hollow hole; 430. Conical material distribution cover; 440. Material distribution channel; 500. Static eliminator rod; 600. Miniature vibration motor; 700. Grounding wire connection point. Detailed Implementation

[0026] A safe feeding device for eliminating static electricity in chemical raw materials is disclosed. This feeding device has an active static electricity elimination function, which can eliminate the charge carried or generated by the chemical raw materials (powder or granules) to the greatest extent, thus providing better safety performance.

[0027] This embodiment will be described in conjunction with the appendix to the instruction manual. Figure 1 To be continued Figure 7 This technology is described in detail. The device consists of a feeding hopper 100, a telescopic hose 200, and a magnetic chuck 300. The feeding hopper 100 integrates functional components such as an equipotential material distribution component 400, an static eliminator 500, a micro vibration motor 600, and a grounding wire connection point 700.

[0028] The aforementioned feeding hopper 100 is a conical hopper structure with a large upper end featuring a connecting flange. This flange is used to seal the connection to chemical raw material storage tanks, conveying pipes, or other sources. This connection method allows the feeding hopper 100 to be installed in a suspended state, where the chemical raw materials can be quickly fed using gravity. The lower end of the feeding hopper 100 also features a connecting flange for installing and connecting the lower telescopic hose 200.

[0029] The flexible hose 200 is a steel-plastic composite structure hose. Specifically, the connecting flanges at both ends of the flexible hose 200 are made of metal, and the corrugated pipe in the middle is a plastic-steel composite pipe. Specifically, the outer wall of the corrugated pipe is made of flexible rubber, and the inner side is made of stainless steel wire braid. The stainless steel wire braid is attached to the inner wall of the rubber pipe to form a plastic-steel composite pipe. The upper and lower ends of the stainless steel wire braid are spot welded to the metal flanges of the flexible hose 200 to form an equipotential design.

[0030] A magnetic chuck 300 is fixedly installed on the lower metal flange of the aforementioned flexible hose 200. The magnetic chuck 300 is a metal flange, and eight strong magnetic blocks 310, made of strong magnetic material, are embedded in the metal flange. The embedding of these blocks ensures a smooth, flat surface, meaning the magnetic chuck 300 is a flange with a strong magnetic effect. The strong magnetic chuck is fixedly installed at the lower end of the flexible hose 200 using high-strength bolts.

[0031] An equipotential material distribution assembly 400 and an electrostatic eliminator 500 are integrated and installed within the aforementioned feeding hopper 100 to eliminate static electricity from the chemical raw materials entering the hopper 100. Specifically, the feeding hopper 100 is preferably made of stainless steel. The aforementioned equipotential material distribution assembly 400 includes an annular fixed cylinder 410, an arc-shaped fan blade 420, and a conical material distribution cover 430, all of which are made of metals with excellent electrical conductivity. The conical material distribution cover 430 and the annular fixing cylinder 410 are concentrically arranged, with the conical material distribution cover 430 centrally located at the center of the annular fixing cylinder 410. The conical material distribution cover 430 has an upward protrusion and a pointed tip. Multiple arc-shaped fan blades 420 are welded and fixed between the conical material distribution cover 430 and the annular fixing cylinder 410. The outer ends of the arc-shaped fan blades 420 are welded to the annular fixing cylinder 410, and their inner ends are inserted into and spot-welded to the conical material distribution cover 430. After welding and fixing, multiple material distribution channels 440 are formed between the multiple equally spaced arc-shaped fan blades 420, creating a material drop space. To achieve the dispersion of chemical raw materials, specifically, the chemical raw materials fall from top to bottom, and during their descent, they come into contact with the conical distribution cover 430 and the arc-shaped fan blades 420, thus dispersing the chemical raw materials. During this process, the chemical raw materials and the metal arc-shaped fan blades 420 and conical distribution cover 430 make full contact, conducting the charge carried by the chemical raw materials to the equipotential distribution assembly 400. The annular fixing cylinder 410 of the equipotential distribution assembly 400 is fitted against the inner wall of the feeding hopper 100 and is fixed in place by anchoring nails. Furthermore, a grounding connection point 700 is provided on the outer wall of the feeding hopper 100, for example at the flange connection. This grounding connection point 700 is grounded through a high-quality copper wire, ensuring that the feeding hopper 100 and its internal equipotential distribution assembly 400 are grounded, achieving the first line of defense against static electricity. The specific process and principle are as follows: Through the above structure, the chemical raw materials are in a dispersed state and collide with the feeding hopper 100 and the equipotential material distribution component 400, so that the charge in the chemical raw materials is conducted to the grounding wire, thereby realizing the elimination of static electricity in the chemical raw materials.

[0032] Furthermore, the aforementioned arc-shaped fan blade 420 is provided with a number of perforated holes 421 arranged at equal intervals. These perforated holes 421 can be round, square, or other shapes, giving the arc-shaped fan blade 420 a perforated structural feature. This structural feature can improve the throughput efficiency of chemical raw materials.

[0033] Optimally, the aforementioned arc-shaped fan blades 420 are welded and fixed in a spiral rotation manner. This arrangement provides better impact during the material feeding process, resulting in better dispersion of the chemical raw materials and positively impacting the elimination of static electricity. This is because replacing the arc-shaped fan blades 420 with vertical plates would reduce the contact area and probability with the material, while replacing them with flat plates would increase the probability of material accumulation and blockage.

[0034] In this embodiment, the equipotential material distribution component 400 breaks down the falling path of the chemical raw materials and creates an impact, so that the chemical raw materials are fully dispersed, increasing the contact area between the chemical raw materials and the equipotential material distribution component 400 and the inner wall of the feeding hopper 100, resulting in better static electricity elimination.

[0035] The aforementioned equipotential material distribution component 400 divides the cavity inside the feeding hopper 100 into two parts, and four static eliminators 500 are installed in the space below it. The static eliminators 500 are purchased electrical components. When energized, the static eliminators 500 generate a large number of positively and negatively charged air masses, most of which are located in the space below. This can neutralize the static charge carried by the chemical raw materials passing through the cavity to the greatest extent, thereby eliminating static electricity in the chemical raw materials. This is the second barrier for static elimination, keeping the amount of static charge in the chemical raw materials within a safe range, thus avoiding the occurrence of flash explosion accidents.

[0036] Furthermore, the installation point of the static eliminator 500, namely the outside of the feeding hopper 100, is subjected to explosion-proof treatment. That is, the outer end of the static eliminator 500 is designed to be explosion-proof, so that the power supply system has an explosion-proof structure and improves safety.

[0037] Furthermore, at least one micro vibration motor 600 is fixedly installed on the outer wall of the aforementioned feeding hopper 100. By turning on the micro vibration motor 600, the contact efficiency of the chemical raw materials during the process of passing through the equipotential material distribution component 400 is improved, thereby improving the static electricity elimination effect.

[0038] The aforementioned static eliminator 500 and miniature vibration motor 600 have control circuits (not shown in the figure) for power supply.

[0039] Furthermore, the four static eliminators 500 mentioned above can be selectively activated in varying numbers according to the characteristics of the chemical raw materials, thereby improving the controllability of the static elimination effect. This is because different chemical raw materials generate different amounts of static charge during transportation and storage.

[0040] Furthermore, in this technology, the parts of the inner wall of the feeding hopper 100 and the telescopic hose 200 that can directly contact the chemical raw materials have a grounded equipotential design, which quickly conducts the generated static charge to the ground, avoids accumulation, and has a very good static elimination effect.

Claims

1. A chemical raw material anti-static safe feeding device, characterized in that, The device includes a feeding hopper (100), a telescopic hose (200), and a magnetic chuck (300). An equipotential material distribution component (400) and an electrostatic eliminator (500) are integrated inside the feeding hopper (100). A grounding wire connection point (700) is fixedly installed on the outside of the feeding hopper (100). The grounding wire connection point (700) is grounded through a wire. The telescopic hose (200) is mechanically fixed to the discharge port of the feeding hopper (100). The magnetic chuck (300) is mechanically fixed to the lower end of the telescopic hose (200). The equipotential material distribution component (400) divides the space inside the feeding hopper (100) into two parts, and at least one electrostatic eliminator (500) is installed in the space below it.

2. The device for safe feeding of chemical raw materials according to claim 1, characterized in that The equipotential material distribution assembly (400) includes an annular fixed cylinder (410) with conductive properties, arc-shaped fan blades (420) and a conical material distribution cover (430), wherein the conical material distribution cover (430) and the annular fixed cylinder (410) are arranged concentrically, and multiple arc-shaped fan blades (420) are welded and fixed between the conical material distribution cover (430) and the annular fixed cylinder (410), and there are material distribution channels (440) between the multiple equally spaced arc-shaped fan blades (420).

3. The device according to claim 2, wherein, The annular fixed cylinder (410) is attached to and anchored to the inner wall of the feeding hopper (100).

4. The device for safe feeding of chemical raw materials according to claim 3, characterized in that The arc-shaped fan blade (420) has several perforated holes (421) arranged at equal intervals.

5. The device for safe feeding of chemical raw materials according to claim 4, characterized in that The arc-shaped fan blade (420) is welded and fixed in a spiral rotation manner.

6. The device for safe feeding of chemical raw materials according to claim 1, characterized in that The telescopic hose (200) is a steel-plastic composite structure hose.

7. The device according to claim 6, wherein The telescopic hose (200) is a plastic-steel composite pipe consisting of metal flanges at both ends and a corrugated pipe in the middle.

8. The device according to claim 7, wherein the device is characterized by: The outer wall of the corrugated pipe is a flexible rubber layer, and the inner side is a stainless steel wire braid. The stainless steel wire braid is attached to the inner wall of the rubber pipe and is welded to the metal flange.

9. The device according to claim 1, wherein, The magnetic chuck (300) is embedded with a strong magnetic block (310).

10. The device according to claim 1, wherein A miniature vibration motor (600) is fixedly installed on the outer wall of the feeding hopper (100).

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