Integrated discharging device

Abstract

The invention relates to an integrated discharging device. The integrated discharging device comprises a powder bin; a flow aid bin; the pneumatic conveying structure comprises a Roots blower, a main conveying pipeline and a branch pipeline, the main conveying pipeline is arranged at the air outlet end of the Roots blower, and the powder bin and the main conveying pipeline are communicated through the branch pipeline; and the two groups of discharging control structures are respectively arranged at the discharging holes of the powder bin and the flow aid bin, are communicated with the main conveying pipeline, and are used for controlling whether the powder coating and the flow aid in the powder bin and the flow aid bin can enter the main conveying pipeline or not. According to the integrated discharging device, the flow aid is additionally designed and can be relatively uniformly mixed with the powder coating, so that the powder coating can pass through the main conveying pipeline more easily, the friction between the materials and the main conveying pipeline is reduced, the abrasion is reduced, the interaction force between the materials can be reduced, and the discharging efficiency is improved. Materials are prevented from bridging in the pipeline, and the pipeline is prevented from being blocked.

Description

Technical Field

[0001] The invention relates to the technical field of powder coating production, in particular to an integrated discharging device. Background Art

[0002] Powder coating is completely different from general coating. It exists in the state of fine powder. Its main characteristics are harmlessness, high efficiency, resource saving and environmental protection.

[0003] With the rapid development of the powder coating market, the required output of powder coatings has gradually increased. As a result, the problem of dust prevention in the factory has become more and more prominent. For example, the authorization announcement number is CN215795879U, and the subject is a conveying device for powder coatings. A conveyor belt is designed under the unloading device (bin) to perform belt conveying and realize the discharge transfer of materials.

[0004] However, in the above-mentioned prior art, since the powder coating is exposed to the outside world when using belt conveyor, dust and impurities are easily mixed in, and the powder coating is easy to scatter during transportation. In addition, in the factory, this type of belt conveyor can only be used for transportation on the same floor, and the transportation flexibility is insufficient. For example, if the silo is located on the ground and the extruder is on the second floor, it is difficult to arrange the belt conveyor. For this reason, the present application proposes an integrated discharge device. Summary of the invention

[0005] Based on the above description, the present invention provides an integrated discharging device, which solves the technical problems that when a belt conveyor is used between the silo and the base machine, the belt conveyor equipment is inconvenient to arrange, and dust is easily mixed into the powder coating and the powder coating will spill.

[0006] The technical solution of the present invention to solve the above technical problems is as follows: an integrated discharging device, comprising: A powder silo, in which powder coating is stored; A flow aid silo, in which the flow aid is stored; A pneumatic conveying structure, which includes a Roots blower, a main conveying pipeline and a branch pipeline, wherein the main conveying pipeline is arranged at the air outlet end of the Roots blower, and the branch pipeline connects the powder silo and the main conveying pipeline; Two sets of discharge control structures are respectively arranged at the discharge ports of the powder silo and the flow aid silo, and are both connected to the main conveying pipeline to control whether the powder coating and flow aid in the powder silo and the flow aid silo can enter the main conveying pipeline.

[0007] Based on the above technical solution, the present invention can also be improved as follows.

[0008] Furthermore, it also includes a material breaking up structure for breaking up the material passing through the branch pipe, and an expansion platform is welded at the corner of the branch pipe.

[0009] Furthermore, the material breaking up structure includes a motor 1, a reducer and a break up device, wherein the reducer is fixed to the outside of the expansion platform by bolts, the output end of the motor 1 is correspondingly connected to the input end of the reducer, and the break up device is located in the branch pipe and assembled at the output end of the reducer.

[0010] Furthermore, the scatterer is composed of a scattering column and a plurality of scattering blades, and the plurality of scattering blades are distributed in a circular array and welded to the outer side of the scattering column.

[0011] Furthermore, a filter is provided at the air outlet of the powder silo.

[0012] Furthermore, a support platform is welded in the powder silo, and a screen plate is arranged on the support platform to allow materials that are not dispersed by the material dispersing structure to be separated.

[0013] Furthermore, the two groups of discharge control structures include a transfer chamber, a second motor and a feeder. The two groups of transfer chambers are respectively fixed at the discharge ports of the powder silo and the flow aid silo, and are both connected to the main conveying pipeline. The feeder is located in the transfer chamber and connected to the output end of the second motor.

[0014] Furthermore, the feeder is composed of a sleeve and a plurality of feeding paddles, wherein the sleeve is assembled at the output end of the second motor, and the plurality of feeding paddles are distributed in a circular array and welded to the outside of the sleeve.

[0015] Furthermore, a solenoid valve is detachably connected between the main conveying pipeline and the branch pipeline to control whether the branch pipeline can pass materials.

[0016] Furthermore, the flow aid in the flow aid silo is talcum powder.

[0017] Compared with the prior art, the technical solution of this application has the following beneficial technical effects: 1. The integrated discharging device adopts pneumatic conveying, which can avoid the exposure of powder coating when it is transferred from the silo, ensure that external dust and impurities are not mixed in, and the powder coating will not be scattered during the discharging and transportation. The pipeline layout can be designed according to specific application requirements, the layout is relatively simple, and the transportation flexibility is better.

[0018] 2. The integrated discharging device, through the additional design of flow aids, allows the flow aids to be mixed with the powder coating relatively evenly, which can improve the fluidity of the material, making the powder coating easier to pass through the main conveying pipeline, reducing the friction between the material and the main conveying pipeline, reducing wear, and also reducing the interaction force between the materials, preventing the material from bridging in the pipeline and avoiding pipeline blockage.

[0019] 3. The integrated discharging device can break up some agglomerated materials by means of a material breaking up structure when the solenoid valve is opened to allow the materials to pass through the branch pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of an integrated discharging device provided by an embodiment of the present invention; Figure 2 for Figure 1 A structural diagram from another perspective; Figure 3 for Figure 1 A schematic diagram of the half-section structure of the middle powder silo and its connecting mechanism; Figure 4 for Figure 3 Schematic diagram of the local structure of the material breaking up structure and its connection structure.

[0021] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Powder silo; 11. Screen plate; 2. Flow aid silo; 3. Pneumatic conveying structure; 31. Roots blower; 32. Main conveying pipeline; 33. Branch pipeline; 331. Expansion table; 34. Solenoid valve 1; 4. Discharge control structure; 41. Transfer room; 42. Motor 2; 43. Feeder; 5. Material scattering structure; 51. Motor 1; 52. Reducer; 53. scatterer; 6. Filter. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0023] In the prior art, the silo and the extruder are usually not placed together, so a conveying device, such as a belt conveyor, is set between the silo and the extruder. However, since the powder coating is exposed to the outside when using a belt conveyor, dust and impurities are easily mixed in, and the powder coating is prone to scattering during transportation. In addition, in the factory, this type of belt conveyor can only be used for transportation on the same floor, and the transportation flexibility is insufficient. How to integrate the silo and the conveying device to achieve dust-free, spill-free and convenient control is a problem that needs to be solved in this application. To this end, this application provides an integrated conveying device.

[0024] like Figure 1 and Figure 2 As shown, an integrated discharging device in this embodiment is used to provide discharging to the extruder, including a powder silo 1, a flow aid silo 2, a pneumatic conveying structure 3 and two sets of discharging control structures 4, wherein the powder silo 1 and the flow aid silo 2 are respectively filled with powder coating and flow aid, and the flow aid adopts a non-reactive flow aid, such as talcum powder, and the two sets of discharging control structures 4 are respectively arranged at the discharge ports of the powder silo 1 and the flow aid silo 2, and are both connected to the pneumatic conveying structure 3, for controlling whether the powder coating and flow aid in the powder silo 1 and the flow aid silo 2 can enter the pneumatic conveying structure 3.

[0025] For further description of the pneumatic conveying structure 3, Figure 1 As shown, the pneumatic conveying structure 3 includes a Roots blower 31 , a main conveying pipeline 32 and a branch pipeline 33 , wherein the main conveying pipeline 32 is arranged at the air outlet end of the Roots blower 31 , and the branch pipeline 33 connects the powder silo 1 and the main conveying pipeline 32 .

[0026] At this point, it should be noted that the powder silo 1 and the flow aid silo 2 are preferably conical, and the inner walls of the powder silo 1 and the flow aid silo 2 can be coated, such as aluminum or silver coating, to provide a smooth surface, which helps to improve the fluidity of the material, reduce the risk of blockage, and facilitate cleaning and maintenance. In addition, the powder silo 1 and the flow aid silo 2 are made of stainless steel to provide good corrosion resistance.

[0027] It should also be noted that a filter 6 is provided at the air outlet of the powder silo 1, and the filter 6 is used to intercept the lifted powder coating and only allow relatively clean air to flow through. The two sets of discharge control structures 4 are both connected to the main conveying pipe 32, and are used to control whether the powder coating and flow aid in the powder silo 1 and the flow aid silo 2 can enter the main conveying pipe 32. A solenoid valve 1 34 is detachably connected between the main conveying pipe 32 and the branch pipe 33, and is used to control whether the branch pipe 33 can pass the material. In addition, a solenoid valve 2 is provided on the outside of the main conveying pipe 32, and is used to control whether the main conveying pipe 32 can be conducted.

[0028] As for the discharge control structure 4, Figure 1-4 As shown, the two groups of discharge control structures 4 include a transfer chamber 41, a second motor 42 and a feeder 43. The two groups of transfer chambers 41 are respectively fixed at the discharge ports of the powder silo 1 and the flow aid silo 2, and are both connected to the main conveying pipeline 32. The feeder 43 is located in the transfer chamber 41 and is connected to the output end of the second motor 42.

[0029] To further explain, the feeder 43 is composed of a sleeve and a plurality of feeding paddles, wherein the sleeve is assembled at the output end of the motor 2 42, and the plurality of feeding paddles are distributed in a circular array and welded to the outer side of the sleeve.

[0030] When designed in this way, the entire powder coating discharging is divided into two processes, namely the pretreatment mixing process and the discharging and conveying process.

[0031] Among them, in the pretreatment mixing process, at this time, initially, the flow aid is not mixed with the powder coating. In order to mix the flow aid with the powder coating, the operation process is to open the solenoid valve 1 34, close the solenoid valve 2, and start the motor 2 42. The motor 2 42 will drive the feeder 43 to rotate and feed. In this way, the powder coating and the flow aid discharged from the outlets of the powder silo 1 and the flow aid silo 2 will be transported to the main conveying pipe 32, and then the Roots blower 31 will be started. The powder coating and the flow aid will be transported and mixed, and then enter the powder silo 1 through the branch pipe 33. After operating for a period of time, the mixing of the powder coating and the flow aid can be completed. After the powder coating and the flow aid are mixed, the material that can improve the fluidity of the material makes it easier for the powder coating to pass through the main conveying pipe 32, reduce the friction between the material and the main conveying pipe 32, reduce wear, and can also reduce the interaction force between the materials, prevent the material from bridging in the pipeline, and avoid pipeline blockage.

[0032] As for the discharging and conveying process, it is carried out after the pretreatment mixing process. After the flow aid and the powder coating are mixed, the solenoid valve 1 34 is closed, the solenoid valve 2 is opened, and only the motor 2 42 under the powder silo 1 is started, so that the corresponding feeder 43 drives the mixed flow aid and powder coating to be discharged, and the Roots blower 31 is started to feed the mixed flow aid and powder coating toward the corresponding extruder.

[0033] Considering that a small amount of powder coating in the powder silo 1 may clump initially, in order to remove the clumped powder coating, Figure 3 and 4 As shown, the integrated discharging device also includes a material breaking up structure 5 for breaking up the material passing through the branch pipe 33 . The branch pipe 33 has a corner, and an expansion platform 331 is welded at the corner of the branch pipe 33 .

[0034] Further explanation of the material scattering structure 5 is that the material scattering structure 5 includes a motor 51, a reducer 52 and a scatterer 53, wherein the reducer 52 is fixed to the outside of the expansion platform 331 by bolts, the output end of the motor 51 is correspondingly connected to the input end of the reducer 52, and the scatterer 53 is located in the branch pipe 33 and assembled at the output end of the reducer 52.

[0035] It should be noted that the scatterer 53 is composed of a scattering column and a plurality of scattering blades, and the plurality of scattering blades are distributed in a circular array and welded to the outer side of the scattering column.

[0036] When designed in this way, during the above-mentioned pretreatment mixing process, the motor 1 51 is started at the same time, so that the scatterer 53 can scatter the flow aid and the powder coating after they enter the branch pipe 33.

[0037] Considering that some agglomerated powder coatings may be missed when broken up, in order to isolate the missed agglomerated powder coatings, a support platform is welded in the powder silo 1, and a screen plate 11 is fixed on the support platform by bolts, so that the materials that are not broken up by the material breaking up structure 5 can be separated.

[0038] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An integrated discharging device, characterized in that: include: A powder silo (1) storing powder coating; A flow aid silo (2) storing a flow aid; A pneumatic conveying structure (3), comprising a Roots blower (31), a main conveying pipeline (32) and a branch pipeline (33), wherein the main conveying pipeline (32) is arranged at the air outlet end of the Roots blower (31), and the branch pipeline (33) connects the powder silo (1) and the main conveying pipeline (32); Two sets of discharge control structures (4) are respectively arranged at the discharge ports of the powder silo (1) and the flow aid silo (2), and are both connected to the main conveying pipeline (32).

2. An integrated discharging device according to claim 2, characterized in that: It also includes a material breaking up structure (5) for breaking up the material passing through the branch pipe (33), and an expansion platform (331) is welded at the corner of the branch pipe (33).

3. An integrated discharging device according to claim 3, characterized in that: The material scattering structure (5) comprises a motor (51), a reducer (52) and a scatterer (53), wherein the reducer (52) is fixed to the outside of the expansion platform (331) by bolts, the output end of the motor (51) is correspondingly connected to the input end of the reducer (52), and the scatterer (53) is located in the branch pipe (33) and assembled on the output end of the reducer (52).

4. The integrated discharging device according to claim 4, characterized in that: The scatterer (53) is composed of a scattering column and a plurality of scattering blades, wherein the plurality of scattering blades are distributed in a circular array and welded to the outer side of the scattering column.

5. An integrated discharging device according to any one of claims 1 to 4, characterized in that: A filter (6) is provided at the air outlet of the powder silo (1).

6. The integrated discharging device according to claim 4, characterized in that: A support platform is welded in the powder silo (1), and a screen plate (11) is arranged on the support platform to allow materials that have not been dispersed by the material dispersing structure (5) to be separated.

7. An integrated discharging device according to claim 6, characterized in that: The two groups of discharge control structures (4) each include a transfer chamber (41), a second motor (42) and a feeder (43). The two groups of transfer chambers (41) are respectively fixed at the discharge ports of the powder silo (1) and the flow aid silo (2), and are both connected to the main conveying pipeline (32). The feeder (43) is located in the transfer chamber (41) and is connected to the output end of the second motor (42).

8. An integrated discharging device according to claim 7, characterized in that: The feeder (43) is composed of a sleeve and a plurality of feed paddles, wherein the sleeve is mounted on the output end of the second motor (42), and the plurality of feed paddles are distributed in a circular array and welded to the outside of the sleeve.

9. The integrated discharging device according to claim 1, characterized in that: A solenoid valve (34) is detachably connected between the main conveying pipeline (32) and the branch pipeline (33) to control whether the branch pipeline (33) can pass materials.

10. The integrated discharging device according to claim 1, characterized in that: The flow aid in the flow aid silo (2) is talcum powder.

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