Electrostatic induction device and powder mixer

Abstract

The application relates to the field of powder mixing equipment, in particular to an electrostatic leading-out device and a powder mixer. The electrostatic leading-out device of the powder mixer comprises a support structure and a leading wheel, the support structure is fixedly connected with the powder mixer and connected with a leading wire, the leading wheel is rotationally arranged on the support structure and electrically connected with the leading wire to transfer static electricity, the support structure is provided with a connecting piece to enable the leading wire to be detachably connected, and the surface of the leading wheel is provided with an electrically-conductive buffer layer; the support structure comprises an inner cylinder, an outer cylinder, a spring and the like, and is further provided with a fixing base; and the application further comprises a powder mixer which comprises a rack, a mixing roller and the electrostatic leading-out device. The application can effectively lead out the static electricity generated by the powder mixer, the device structure is reasonable, the installation and maintenance are convenient, and the static electricity can be stably transferred to the contact roller.

Description

Technical Field

[0001] This application relates to the field of powder mixing equipment, and in particular to an electrostatic discharge device and a powder mixer. Background Technology

[0002] In the field of powder mixing equipment, powder mixing is a crucial process widely used in numerous industries such as chemical, food, and pharmaceutical. With continuous industrial development, the requirements for the quality and efficiency of powder mixing are becoming increasingly stringent. Effective powder mixing can improve product quality stability, reduce production costs, and drive the development of related industries.

[0003] Powder mixing typically employs drum mixers. During the mixing process, static electricity can easily accumulate due to friction and collisions between powder particles. This accumulation not only causes powder to adhere to the inner wall of the mixer, affecting the mixing effect, but may also lead to safety accidents such as dust explosions. Utility Model Content

[0004] This application provides an electrostatic discharge device and a powder mixer, which can effectively eliminate static electricity generated by the rollers during operation.

[0005] On the one hand, this application provides an electrostatic discharge device, which adopts the following technical solution: An electrostatic discharge device includes a support structure and guide wheels; the support structure is used for fixed connection with a powder mixer; the support structure is also connected to a wire. The guide wheel is rotatably mounted on the support structure and electrically connected to the wire; the guide wheel is used to contact the drum of the powder mixer and can transfer static electricity to the wire.

[0006] By adopting the above technical solution, the static electricity generated by the roller of the powder mixer can be transferred to the wire, thereby effectively eliminating the static electricity generated by the roller during operation and avoiding the accumulation of static electricity that causes powder to adhere to the inner wall of the mixer, affecting the mixing effect and causing safety accidents such as dust explosions.

[0007] Preferably, the support structure is provided with a connector, the wire is detachably connected to the connector, and the connector is electrically connected to the guide wheel.

[0008] By adopting the above technical solution, connectors are set on the support structure, and the wires are detachably connected to the connectors, which facilitates the installation, disassembly and replacement of the wires.

[0009] Preferably, the surface of the guide wheel is provided with a conductive buffer layer.

[0010] By adopting the above technical solution, the conductive buffer layer can play a buffering role while transmitting static electricity, reducing noise, wear and impact when the guide wheel and the drum come into contact.

[0011] Preferably, the support structure includes an inner cylinder, an outer cylinder, and a spring; the inner cylinder is used for fixed connection with the powder mixer; the outer cylinder is sleeved on the inner cylinder, and the two ends of the spring act on the inner cylinder and the outer cylinder respectively and provide elastic force.

[0012] By adopting the above technical solution, the spring provides elastic force, which enables the guide wheel and the roller to make better contact and ensures the stability of electrostatic transmission.

[0013] Preferably, the inner cylinder sidewall is provided with a limiting pin, and the outer cylinder is provided with a limiting groove that cooperates with the limiting pin.

[0014] By adopting the above technical solution, the outer cylinder is provided with a limiting groove that cooperates with the limiting pin, which allows the outer cylinder to extend and retract smoothly along the inner cylinder under the action of the spring, avoiding circumferential rotation of the outer cylinder and ensuring good contact between the guide wheel and the powder mixer drum to transfer static electricity.

[0015] Preferably, the support structure further includes a fixing seat for fixed connection with the powder mixer, and the end of the inner cylinder is detachably connected to the fixing seat.

[0016] By adopting the above technical solution, the fixing seat is used to fix the connection with the powder mixer, ensuring the stability of the connection between the support structure and the powder mixer.

[0017] Preferably, the inner cylinder end is provided with a first flange, and the fixed seat is provided with a second flange, and the first flange and the second flange are connected by a clamp.

[0018] By adopting the above technical solution, the first flange at the end of the inner cylinder and the second flange on the fixed seat are connected by a clamp, realizing a detachable connection between the end of the inner cylinder and the fixed seat, which facilitates installation and maintenance.

[0019] On the other hand, this application provides a powder mixer, which adopts the following technical solution: A powder mixer includes a frame, a mixing drum, and the aforementioned electrostatic discharge device; the support structure is fixedly connected to the frame, and the guide wheel abuts against the outer wall of the mixing drum.

[0020] By adopting the above technical solution, the guide wheel of the static discharge device abuts against the outer wall of the mixing drum, which can transfer the static electricity generated by the mixing drum during operation to the wire, effectively eliminating the static electricity of the drum and avoiding the accumulation of static electricity that causes powder to adhere to the inner wall of the mixer, affecting the mixing effect and causing safety accidents such as dust explosion.

[0021] In summary, this application includes at least one of the following beneficial technical effects: 1. The static electricity discharge device contacts the drum of the powder mixer through the guide wheel and transfers static electricity to the wire, which can effectively eliminate the static electricity generated by the drum during operation and avoid problems such as powder adsorption on the inner wall of the mixer and safety accidents caused by static electricity accumulation. 2. The detachable connection between the inner cylinder and the fixed base via clamps facilitates the maintenance of the static electricity discharge device. The sliding connection between the inner and outer cylinders, with springs providing elasticity, ensures stable contact between the guide roller and the drum surface, thereby eliminating static electricity on the drum. Furthermore, the conductive buffer layer on the guide roller effectively reduces operating noise. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the electrostatic discharge device in the embodiments of this application; Figure 2 This is a cross-sectional view of the electrostatic discharge device in an embodiment of this application; Figure 3 This is a schematic diagram of the structure of the powder mixer in the embodiments of this application; Figure 4 yes Figure 3 A magnified view of part A in the diagram.

[0023] The following are labels in the attached diagram: 1. Support structure; 11. Inner cylinder; 111. First flange; 12. Outer cylinder; 121. Limiting groove; 13. Spring; 14. Limiting pin; 15. Fixing seat; 151. Second flange; 16. Clamp; 2. Guide wheel; 3. Wire; 4. Connector; 5. Conductive buffer layer; 6. Frame; 7. Roller. Detailed Implementation

[0024] The following is in conjunction with the appendix Figure 1 - Figure 4 This application will be described in further detail.

[0025] This application mainly adopts a scheme in which the guide wheel 2 contacts the drum 7 to transfer static electricity to the wire 3, which effectively eliminates the static electricity generated in the drum 7 of the powder mixer during operation. The following is a further detailed description of this application.

[0026] Reference Figure 1 and Figure 2 The present application provides an electrostatic discharge device for a powder mixer, which includes a support structure 1, a guide wheel 2, and a wire 3. The support structure 1 is fixedly connected to the powder mixer. The guide wheel 2 is rotatably mounted on the support structure 1 and is electrically connected to the wire 3. After the guide wheel 2 contacts the drum 7 of the powder mixer, it can transfer static electricity to the wire 3, thereby achieving the effect of timely discharge of static electricity from the drum 7 of the powder mixer.

[0027] Specifically, the support structure 1 includes an inner cylinder 11, an outer cylinder 12, a spring 13, and a fixing seat 15. The inner cylinder 11 is used for fixed connection with the powder mixer. The inner cylinder 11 is generally made of metal, such as stainless steel, and is cylindrical in shape, possessing good strength and electrical conductivity. A first flange 111 is provided at the end of the inner cylinder 11. The first flange 111 is an annular structure and is integrally formed with the inner cylinder 11. The outer cylinder 12 is sleeved on the inner cylinder 11. The outer cylinder 12 is also made of metal, and its inner diameter is slightly larger than the outer diameter of the inner cylinder 11 to ensure smooth sliding on the inner cylinder 11.

[0028] A limiting pin 14 is fixed on the side wall of the inner cylinder 11, and a limiting groove 121 that cooperates with the limiting pin 14 is provided on the outer cylinder 12. The limiting groove 121 is elongated and can restrict the circumferential rotation of the outer cylinder 12 on the inner cylinder 11 to ensure stability.

[0029] The two ends of spring 13 act on the inner cylinder 11 and the outer cylinder 12 respectively, providing elastic force. Spring 13 is generally a helical spring 13, which has good elasticity and durability. The fixed base 15 is used for fixed connection with the powder mixer. The fixed base 15 is provided with a second flange 151, which abuts against the first flange 111, and the two are connected by a clamp 16. The sliding fit between the inner cylinder 11 and the outer cylinder 12, as well as the elastic action of spring 13, allows the guide wheel 2 to maintain appropriate pressure on the surface of the drum 7. Even if the drum 7 experiences slight positional changes during operation, the continuity of static electricity discharge can be ensured.

[0030] The clamp 16 is a ring structure, consisting of a metal strip and bolts. The metal strip is fastened to both the first flange 111 and the second flange 151. The first flange 111 and the second flange 151 can be fixed by tightening the bolts, thus realizing the detachable connection between the inner cylinder 11 and the fixed seat 15.

[0031] Furthermore, a connector 4 is provided on the side wall of the outer cylinder 12. The connector 4 is fixed to the outer cylinder 12 by metal bolts through welding or bolt connection. A connecting piece is provided at the end of the wire 3. The connector 4 passes through the connecting piece and connects to the outer cylinder 12, thereby fixing the wire 3 to the outer cylinder 12 and achieving a conductive connection.

[0032] Specifically, the guide wheel 2 is rotatably mounted on the support structure 1. The guide wheel 2 is made of a conductive metal material, such as copper or aluminum, and is circular in shape with a central shaft hole. It is connected to the top of the outer cylinder 12 via a bearing, allowing for flexible rotation. A conductive buffer layer 5 is provided on the surface of the guide wheel 2. This layer can be conductive rubber, possessing good conductivity and elasticity, which can buffer the impact force when the guide wheel 2 contacts the roller 7, reducing wear and noise. The guide wheel 2 rotates along with the roller 7 as the roller 7 rotates, simultaneously transferring static electricity from the roller 7 to the conductively connected wire 3.

[0033] The implementation principle of this embodiment is as follows: The electrostatic discharge device utilizes a support structure 1 to rationally arrange the guide wheel 2 and the wire 3 on the powder mixer. The elastic design of the support structure 1 allows the guide wheel 2 to adapt to the positional changes of the drum 7, maintaining good contact with the drum 7 at all times. The conductive buffer layer 5 on the surface of the guide wheel 2 not only buffers the impact force during contact but also increases the contact area and improves the electrostatic transfer efficiency. The wire 3 is electrically connected to the guide wheel 2 through the connector 4, which can discharge static electricity in a timely manner. This design effectively solves the problem of static electricity accumulation in the drum 7 of the powder mixer, avoiding powder adsorption and safety accidents caused by static electricity. Compared with traditional static electricity elimination methods, it has the advantages of low cost, convenient installation, and real-time effectiveness.

[0034] Reference Figure 3 and Figure 4 This application also provides a powder mixer, including a frame 6, a mixing drum 7, and the aforementioned static electricity discharge device. The fixed base 15 is fixedly connected to the frame 6, which can be achieved by bolts or welding, ensuring the stability of the support structure 1. The guide wheel 2 abuts against the outer wall of the mixing drum 7. When the mixing drum 7 rotates, the guide wheel 2 rotates accordingly and transfers the static electricity on the drum 7 to the wire 3, thereby eliminating the static electricity on the drum 7.

[0035] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An electrostatic discharge device, characterized in that: It includes a support structure (1) and a guide wheel (2); the support structure (1) is used for fixed connection with the powder mixer; the support structure (1) is also connected to a wire (3); The guide wheel (2) is rotatably mounted on the support structure (1) and electrically connected to the wire (3); the guide wheel (2) is used to contact the drum (7) of the powder mixer and can transfer static electricity to the wire (3).

2. The electrostatic discharge device according to claim 1, characterized in that: The support structure (1) is provided with a connector (4), the wire (3) is detachably connected to the connector (4), and the connector (4) is electrically connected to the guide wheel (2).

3. The electrostatic induction device of claim 1, wherein: The surface of the guide wheel (2) is provided with a conductive buffer layer (5).

4. The electrostatic induction device of claim 1, wherein: The support structure (1) includes an inner cylinder (11), an outer cylinder (12) and a spring (13); the inner cylinder (11) is used to be fixedly connected to the powder mixer; the outer cylinder (12) is sleeved on the inner cylinder (11), and the two ends of the spring (13) act on the inner cylinder (11) and the outer cylinder (12) respectively and provide elastic force.

5. The electrostatic discharge device according to claim 4, characterized in that: The inner cylinder (11) has a limit pin (14) on its side wall, and the outer cylinder (12) has a limit groove (121) that cooperates with the limit pin (14).

6. The electrostatic discharge device according to claim 5, characterized in that: The support structure (1) also includes a fixed seat (15), which is used to be fixedly connected to the powder mixer, and the end of the inner cylinder (11) is detachably connected to the fixed seat (15).

7. The electrostatic discharge device according to claim 6, characterized in that: The inner cylinder (11) is provided with a first flange (111) at its end, and the fixed seat (15) is provided with a second flange (151). The first flange (111) and the second flange (151) are connected by a clamp (16).

8. A powder mixer, characterized in that: It includes a frame (6), a mixing drum (7), and an electrostatic discharge device as described in any one of claims 1-7; the support structure (1) is fixedly connected to the frame (6), and the guide wheel (2) abuts against the outer wall of the mixing drum (7).

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