Powder mixing and adding device

Abstract

The utility model discloses a powder mixing and feeding device, and relates to the technical field of powder treatment. The powder mixing and adding device comprises a hollow mixing bin with an opening in the upper portion, at least two feeding pipes, a lower connecting rod and an upper connecting rod, a guide pipe is connected to the bottom of the mixing bin, the upper end of the guide pipe is communicated with an inner cavity of the mixing bin, and the feeding pipes are distributed on the outer wall of the mixing bin at equal intervals. Through a convection mode, powdery particles can be scoured and mixed, the heating condition caused by stirring and mixing is avoided, and the property of a powdery material is kept stable. And by adjusting the conical block at the upper end of the conical block, the falling powder is further mixed, so that the powder is further dispersed. Through the arrangement of the bottom plate, falling powder particles are dispersed to the periphery, the dispersion position is enlarged, the feeding area is increased, the upper surface of the bottom plate can be set to be in an upward convex shape, and powder particle residues on the surface of the bottom plate are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of powder processing, in particular to a powder mixing and feeding device. Background Technique

[0002] Powder mixing is a process in which more than two components are stirred under the action of external force in a dry state or with a small amount of liquid present, so that their non-uniformity is continuously reduced. It is the most important index for evaluating the performance of a mixer.

[0003] At present, the mixing of powders mainly adopts the method of stirring and mixing. During the stirring and mixing process, due to the action of friction, heat is generated, which is easy to damage the powder by heating, and even cause a heating reaction of the powder, changing its chemical properties. For example, in some sewage treatments, some powdery agents need to be added, and the agents need to be pre-mixed to be evenly dispersed at the edge and then put into the sewage. Due to the method of stirring and mixing, the temperature of the powder rises, especially for some sugar-containing components, resulting in an increase in viscosity and difficulty in separation. Content of the Utility Model

[0004] (I) Technical Problems to be Solved

[0005] In view of the deficiencies of the prior art, the utility model provides a powder mixing and feeding device, which solves the above-mentioned problems.

[0006] (II) Technical Solutions

[0007] To achieve the above purposes, the utility model is realized through the following technical solutions: A powder mixing and feeding device includes:

[0008] A mixing bin that is hollow and open at the upper part, the bottom of the mixing bin is connected with a guiding pipe, and the upper end of the guiding pipe is communicated with the inner cavity of the mixing bin;

[0009] Feeding pipes, at least two feeding pipes are provided, and the feeding pipes are equidistantly distributed on the outer wall of the mixing bin;

[0010] An upper connecting rod, the upper end of the upper connecting rod is suspended at the upper opening of the mixing bin, a supporting spring is connected to the lower side of the upper connecting rod, the bottom end of the supporting spring is connected with an adjusting conical block, the adjusting conical block includes a cylindrical middle connecting block and conical blocks connected to the upper and lower ends of the middle connecting block, and the bottom end of the supporting spring is connected with the upper conical block;

[0011] A lower connecting rod, the lower connecting rod is connected to the lower side of the lower conical block, the lower end of the lower connecting rod passes through the guiding pipe and extends to the lower side of the guiding pipe, and a bottom plate is arranged at the bottom end of the lower connecting rod.

[0012] Preferably, a top cover is detachably connected to the upper opening of the mixing bin.

[0013] Preferably, two support rods are provided on the outer wall of the mixing bin, and the two support rods are arranged on opposite sides of the outer wall of the mixing bin.

[0014] Preferably, one end of the feed pipe close to the mixing bin is lower than the other end, and a connection joint is provided at the end of the feed pipe away from the mixing bin.

[0015] Preferably, the upper end of the upper connecting rod is provided with an external thread. The upper end of the upper connecting rod penetrates through the top cover and extends to the upper side of the top cover. An adjusting thread ring matching the external thread is provided on the upper part of the top cover.

[0016] Preferably, the same number of guiding and dispersing plates as the number of feed pipes are arranged inside the mixing bin, and one side of the guiding and dispersing plate facing the middle of the inner cavity of the mixing bin is located above the conical block at the upper end.

[0017] Preferably, dispersing strips are provided on the upper surface of the guiding and dispersing plate.

[0018] (III) Beneficial effects

[0019] The utility model provides a powder mixing and dosing device, which has at least the following beneficial effects compared with the prior art:

[0020] In a convection manner, the powdery particles can be washed and mixed, avoiding the heating situation caused by stirring and mixing, and keeping the properties of the powder material stable.

[0021] By adjusting the setting of the conical block at the upper end of the conical block, the falling powder is further mixed, so that the powder is further dispersed. Through the setting of the bottom plate, the falling powder particles are dispersed around, expanding the dispersion position, increasing the dosing area, and the upper surface of the bottom plate can be set in a convex shape to avoid the residue of powder particles on the surface of the bottom plate. Description of the drawings

[0022] Figure 1 It is a schematic structural diagram of the utility model;

[0023] Figure 2 It is a schematic structural diagram of the top cover, upper connecting rod, support spring, adjusting conical block, lower connecting rod and bottom plate of the utility model;

[0024] Figure 3 It is a schematic internal structure diagram of the mixing bin of the utility model.

[0025] In the figure: 1. Mixing bin; 2. Top cover; 3. Adjusting thread ring; 4. Guiding pipe; 5. Upper connecting rod; 6. Support spring; 7. Adjusting conical block; 8. Lower connecting rod; 9. Bottom plate; 10. Feed pipe; 11. Connection joint; 12. Guiding and dispersing plate; 13. Dispersing strip; 14. Support rod. Detailed implementation manners

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0027] Please refer to Figures 1-3 , the present utility model provides a technical solution: a dosing device, including: a mixing bin 1 that is hollow and open at the upper part, a feed pipe 10, an upper connecting rod 5, and a lower connecting rod 8;

[0028] A guide pipe 4 is connected to the bottom of the mixing bin 1. The upper end of the guide pipe 4 communicates with the inner cavity of the mixing bin 1. At least two feed pipes 10 are provided, and the feed pipes 10 are equidistantly distributed on the outer wall of the mixing bin 1. The upper end of the upper connecting rod 5 is suspended at the upper opening of the mixing bin 1. A support spring 6 is connected to the lower side of the upper connecting rod 5. The bottom end of the support spring 6 is connected to an adjusting conical block 7. The adjusting conical block 7 includes a cylindrical intermediate connecting block and conical blocks connected to the upper and lower ends of the intermediate connecting block. The bottom end of the support spring 6 is connected to the upper conical block. The lower connecting rod 8 is connected to the lower side of the lower conical block. The lower end of the lower connecting rod 8 passes through the guide pipe 4 and extends to the lower side of the guide pipe 4. A bottom plate 9 is provided at the bottom end of the lower connecting rod 8. Inside the mixing bin 1, there are guide dispersion plates 12 having the same number as the feed pipes 10. The side of the guide dispersion plate 12 facing the middle of the inner cavity of the mixing bin 1 is located above the upper conical block. Dispersion strips 13 are provided on the upper surface of the guide dispersion plate 12. Two support rods 14 are provided on the outer wall of the mixing bin 1. The two support rods 14 are arranged on opposite sides of the outer wall of the mixing bin 1.

[0029] Analysis of the above content: When used for mixing and dosing powder agents for sewage treatment (it can also be used for powder mixing and dispersed dosing in other aspects), different powders enter the mixing bin 1 through the feed pipes 10. The powders fall on the guide dispersion plates 12. Since the outer side of the guide dispersion plates 12 is lower than the inner side, the powders move inward under the action of gravity. Different powders are concentrated inside (the middle of the mixing bin 1). The different powders collide and impact with each other, making the powders mix evenly.

[0030] The evenly mixed powders fall on the upper conical block. Since the upper end of the conical block is spiky, the mixed powders are dispersed outward and then concentrated towards the guide pipe 4 for further mixing. Finally, they fall from the guide pipe 4 and land on the bottom plate 9. Under the dispersion action of the bottom plate 9, they are further dispersed and dosed into the sewage, expanding the contact range with the sewage.

[0031] When there is a large amount of falling powder (when the falling powder flow rate is high), the powder falls on the bottom plate 9, impacts the bottom plate 9, causes the support spring 6 to elongate, the bottom plate 9 to descend, and the conical block at the lower end to move towards the guide pipe 4, reducing the effective pipe diameter of the guide pipe 4 to reduce the flow rate.

[0032] As Figure 1 、 2 shown, a top cover 2 is detachably connected to the upper opening of the mixing bin 1. The upper end of the upper connecting rod 5 is provided with an external thread. The upper end of the upper connecting rod 5 penetrates through the top cover 2 and extends to the upper side of the top cover 2. An adjusting thread ring 3 matching the external thread is provided on the upper part of the top cover 2.

[0033] The upper connecting rod 5 is threadedly connected to the adjusting thread ring 3. By rotating the adjusting thread ring 3, the upper connecting rod 5 can be raised or lowered, facilitating the control and adjustment of the heights of the conical block 7 and the bottom plate 9 to regulate the dispersion method.

[0034] As Figure 1 、 3 shown, one end of the feed pipe 10 close to the mixing bin 1 is lower than the other end. A connection joint 11 is provided at the end of the feed pipe 10 away from the mixing bin 1.

[0035] Analysis of the above content: Through the setting of the connection joint 11, it is convenient to connect with other powder feeding pipelines. According to the usage requirements, structures such as connection threads can be set inside the connection joint 11.

[0036] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variation thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A powder mixing and dosing device, characterized in that, Comprising: A hollow mixing bin (1) with an upper opening, a guiding pipe (4) is connected to the bottom of the mixing bin (1), and the upper end of the guiding pipe (4) communicates with the inner cavity of the mixing bin (1); Feeding pipes (10), at least two feeding pipes (10) are provided, and the feeding pipes (10) are equidistantly distributed on the outer wall of the mixing bin (1); An upper connecting rod (5), the upper end of the upper connecting rod (5) is suspended at the upper opening of the mixing bin (1), a supporting spring (6) is connected to the lower side of the upper connecting rod (5), the bottom end of the supporting spring (6) is connected to an adjusting conical block (7), the adjusting conical block (7) includes a cylindrical middle connecting block and conical blocks connected to the upper and lower ends of the middle connecting block, and the bottom end of the supporting spring (6) is connected to the upper conical block; A lower connecting rod (8), the lower connecting rod (8) is connected to the lower side of the lower conical block, the lower end of the lower connecting rod (8) penetrates through the guiding pipe (4) and extends to the lower side of the guiding pipe (4), and a bottom plate (9) is provided at the bottom end of the lower connecting rod (8).

2. The powder mixing and dosing device according to claim 1, wherein: A top cover (2) is detachably connected to the upper opening of the mixing bin (1).

3. The powder mixing and dosing device according to claim 1, characterized in that: Two support rods (14) are provided on the outer wall of the mixing bin (1), and the two support rods (14) are arranged on opposite sides of the outer wall of the mixing bin (1).

4. A powder mixing and dosing device according to claim 1, characterized in that: One end of the feeding pipe (10) close to the mixing bin (1) is lower than the other end, and a connection joint (11) is provided at the end of the feeding pipe (10) away from the mixing bin (1).

5. The powder mixing and dosing device according to claim 2, characterized in that: The upper end of the upper connecting rod (5) is provided with an external thread, the upper end of the upper connecting rod (5) penetrates through the top cover (2) and extends to the upper side of the top cover (2), and an adjusting thread ring (3) matching the external thread is provided on the upper part of the top cover (2).

6. The powder mixing and dosing device according to claim 1, characterized in that: The same number of guiding and dispersing plates (12) as the number of feeding pipes (10) are arranged inside the mixing bin (1), and the side of the guiding and dispersing plate (12) facing the middle of the inner cavity of the mixing bin (1) is located above the upper conical block.

7. A powder mixing and dosing device according to claim 6, characterized in that: Dispersing strips (13) are provided on the upper surface of the guiding and dispersing plate (12).

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