Integral mixing device of large powder bin

Abstract

The invention belongs to the technical field of powder production, particularly relates to an integral mixing device of a large powder bin, and provides the following scheme aiming at the problems that in the prior art, the mixing effect of a large mixing bin is not ideal, and the manufacturing cost is high: the integral mixing device comprises a mixing bin and a plurality of mixing pipes fixedly arranged on the inner wall of the mixing bin, the bottom ends of the multiple mixing pipes are connected with communicating pipes, and the bottom ends of the communicating pipes are connected with a mixing chamber; the multi-time mixing mechanism is arranged on one side of the mixing chamber and used for forming multi-time mixing; the repeated mixing mechanism comprises an annular pipe arranged on one side of the mixing chamber, and an input end of a centrifugal fan is arranged on the annular pipe; the mixing area is arranged at the top of the stock bin, compared with an existing mixing bin, the overall height is reduced, the manufacturing cost is lower, overall closed-loop, top mixing and distributed conveying mixing are achieved, the structure is simple, manufacturing is easy, and the material mixing effect is greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of powder production, and in particular to an integral blending device for a large powder silo. Background Art

[0002] At present, in the field of powder engineering, the mixing of materials is an important unit operation. In many fields, many processes are accompanied by the mixing and homogenization of materials. This includes the mixing and homogenization of two or more materials with different physical properties (such as particle size, density, morphology, etc.) and chemical properties, and the material particles of different batches of the same material intersect and penetrate each other to form powder materials that meet people's needs. The quality of mixing is related to the quality of the final product. For example, the production of a certain plastic particle requires the process of mixing different batches of materials with different melt indexes. The small bubbles in the final product are caused by insufficient mixing uniformity. Therefore, a high-quality material mixing process is required in the production process of many materials.

[0003] For coarse-grained powders that are easy to flow (such as Class D powders), it is most economical to use a gravity mixing silo. Common gravity mixing silos include the following types: multi-tube type, center tube type, wall type, and center cone type. The first three types of silos all use mixing tubes to mix materials.

[0004] In the prior art, the mixing effect of large-scale mixing bins is not very ideal, and the manufacturing cost is high. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art that the mixing effect of large mixing bins is not very ideal and the manufacturing cost is high, and an integral mixing device for a large powder silo is proposed.

[0006] The present application provides an integrated mixing device for a large powder silo using the following technical solution:

[0007] An integral blending device for a large powder silo, comprising: a blending silo and a plurality of blending tubes fixedly arranged on the inner wall of the blending silo, wherein the bottom ends of the plurality of blending tubes are connected to a connecting tube, and the bottom ends of the connecting tubes are connected to a blending chamber;

[0008] A multiple blending mechanism is arranged at one side of the blending chamber and is used to form multiple blending;

[0009] Furthermore, the multiple mixing mechanism includes an annular tube arranged at one side of the mixing chamber, and the annular tube is provided with an input end of a centrifugal fan.

[0010] Furthermore, the output end ring pipe of the centrifugal fan is fixedly connected.

[0011] Furthermore, one end of the ring tube is fixedly connected to the top of the blending bin, and is used to transport the mixed materials in a closed loop to the top plane of the bin.

[0012] In summary, the present application includes at least one of the following beneficial technical effects:

[0013] In this solution, materials from different heights enter the mixing chamber at the same time, the materials taken out from the mixing tubes are spread on the same plane, and then multiple mixing is performed. The materials from all the mixing tubes enter the ring tube at the same time (which means that materials at different cross-sectional heights enter the ring tube), and the materials entering the ring tube are sent to the top of the silo by wind. That is, the materials are taken from different heights and mixed on the same plane, thus achieving multiple self-mixing.

[0014] The blending zone of the present invention is at the top of the silo, which has a lower overall height than the existing blending silo and a lower manufacturing cost. The overall closed loop, top mixing, and distributed conveying and blending have a simple structure and are easy to manufacture, which greatly improves the blending effect of the materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of an overall blending device for a large powder silo proposed by the present invention;

[0016] Figure 2 This is a schematic diagram of the top view of the mixing pipe of the integral mixing device for a large powder silo proposed by the present invention.

[0017] Figure numerals: 1. Mixing bin; 2. Mixing pipe; 3. Connecting pipe; 4. Mixing chamber; 5. Ring pipe; 6. Centrifugal fan. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0019] Example

[0020] Reference Figure 1-Figure 2 , an integral blending device for a large powder silo, comprising: a blending silo 1 and a plurality of blending tubes 2 fixedly arranged on the inner wall of the blending silo 1, wherein the bottom ends of the plurality of blending tubes 2 are all connected with a connecting tube 3, and the bottom ends of the connecting tubes 3 are connected with a blending chamber 4;

[0021] A multiple blending mechanism is provided at one side of the blending chamber 4 and is used to form multiple blending;

[0022] Reference Figure 1The multiple blending mechanism includes a ring tube 5 arranged on one side of the blending chamber 4, and an input end of a centrifugal fan 6 is arranged on the ring tube 5; the output end of the centrifugal fan 6 is fixedly connected to the ring tube 5; one end of the ring tube 5 is fixedly connected to the top of the blending bin 1, and is used to transport the mixed materials in a closed loop to the top plane of the bin;

[0023] like Figure 1 As shown, when materials are blended, materials at different heights enter the blending chamber 4 at the same time, the materials are mixed and flow out through the blending chamber 4, and the centrifugal fan 6 transports the mixed materials in a closed loop to the top plane of the silo. The mixed materials on the same plane flow out successively through the blending tubes 2 at different heights, thus forming multiple blending.

[0024] The implementation principle of the overall blending device of a large powder silo in the embodiment of the present application is as follows: the material enters the blending chamber 4 through a connecting pipe 3 from a plurality of blending tubes 2 at different heights for mixing. After mixing, the centrifugal fan 6 is started, and the centrifugal fan 6 is used to transport the material to the top of the silo through the annular pipe 5 in a closed loop for re-blending.

[0025] The above description is only a preferred specific implementation manner 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 scheme and inventive concept 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 integral blending device for a large powder silo, characterized in that: include: A blending bin (1) and a plurality of blending tubes (2) fixedly arranged on the inner wall of the blending bin (1), wherein the bottom ends of the plurality of blending tubes (2) are all connected to a connecting tube (3), and the bottom ends of the connecting tubes (3) are connected to a blending chamber (4); The multiple blending mechanism is arranged on one side of the blending chamber (4) and is used to perform multiple blending.

2. The integrated blending device for a large powder silo according to claim 1, characterized in that: The multiple blending mechanism comprises an annular tube (5) arranged on one side of the blending chamber (4), and an input end of a centrifugal fan (6) is arranged on the annular tube (5).

3. The integrated blending device for a large powder silo according to claim 2, characterized in that: The output end of the centrifugal fan (6) is fixedly connected to the ring pipe (5).

4. The integrated blending device for a large powder silo according to claim 3, characterized in that: One end of the ring tube (5) is fixedly connected to the top of the blending bin (1) and is used to transport the mixed materials in a closed loop to the top plane of the bin.

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