Ore pulp stirring device capable of assisting mixing through high-pressure air

Abstract

The utility model discloses an ore pulp stirring device with mixing assisted by high-pressure air, which comprises a stirring pool, a first stirring paddle and a second stirring paddle which are arranged on a stirring shaft and are driven by a motor arranged on a supporting piece, and a feeding unit is arranged above the stirring pool. A high-pressure air pipe communicated with an external air source penetrates into the stirring pool to be connected with an air auxiliary mixing unit in the stirring pool, an ore pulp outlet is further formed in the bottom of the stirring pool, the air auxiliary mixing unit comprises an annular main pipe, and the annular main pipe is communicated with the high-pressure air pipe. The annular main pipe is provided with a plurality of arc-shaped branch pipes which are the same as the annular main pipe in diameter and extend upwards in a spiral mode. The stirring blades can be assisted to efficiently stir ore pulp through assistance of high-pressure air, and the stirring effect of the ore pulp is improved.

Description

Technical Field

[0001] The utility model relates to the field of pulp stirring devices, in particular to a pulp stirring device assisted by high-pressure air for mixing. Background Art

[0002] The uniform and sufficient mixing of pulp is crucial for the entire mineral processing process. It can ensure the full contact of mineral particles with chemical reagents or air, thereby accelerating chemical reactions or oxidation processes and improving reaction efficiency. This uniform mixing helps to optimize separation effects, such as flotation and gravity separation, by uniformly dispersing mineral particles to improve separation efficiency and selectivity. At the same time, uniform mixing can reduce local vortices and dead zones during the stirring process, reduce energy consumption, improve processing capacity, reduce equipment wear, and contribute to obtaining consistent product quality, improving product purity and stability. In addition, uniform mixing helps to reduce the usage amount of chemical reagents, reduce production costs, improve environmental friendliness, and achieve precise control through an automated control system, improving the stability and predictability of the production process.

[0003] For example, a utility model with the publication number CN209406199U discloses a pulp stirring device. The device includes a stirring barrel. A first guide rod and a second guide rod are vertically and fixedly installed at the top of the stirring barrel. A stirring motor is fixedly installed between two horizontal connecting rods. A rotating sleeve is rotatably installed on the stirring barrel through a second bearing. A stirring shaft is rotatably installed in a lifting sleeve block through a first bearing. A forward and reverse motor is drivingly connected to a driving shaft. A horizontal rotating rod is horizontally and fixedly installed at the bottom end of a stirring plate. In the utility model, the stirring shaft drives the stirring plate to rotate to rotate and stir the pulp in the stirring barrel. The forward and reverse rotation of the forward and reverse motor enables the lifting sleeve block to drive the stirring shaft to reciprocate up and down through the first bearing, thereby stirring the pulp at different longitudinal positions in the stirring barrel. The rotating scraper scrapes the pulp adhered to the inner wall of the stirring barrel into the interior of the stirring barrel, making the stirring of the pulp more sufficient and thorough, and greatly improving the stirring efficiency.

[0004] However, the above-mentioned simple mechanical stirring is still prone to undispersed lumps. Therefore, in order to ensure the dispersion effect of the pulp, a better stirring device is needed. Summary of the Utility Model

[0005] To solve the problems existing in the prior art, the purpose of the utility model is to disclose a pulp stirring device assisted by high-pressure air for mixing, which can, with the assistance of high-pressure air, assist the stirring blades to stir the pulp efficiently and improve the stirring effect of the pulp.

[0006] To achieve the above effects, the present application discloses a pulp stirring device assisted by high-pressure air mixing, which includes a stirring tank. The first stirring paddle and the second stirring paddle arranged on the stirring shaft are driven by a motor installed on a support member. An inlet unit is arranged above the stirring tank. A high-pressure air pipe communicated with an external air source extends deep into the stirring tank and is connected to an air-assisted mixing unit in the stirring tank. A pulp outlet is also provided at the bottom of the stirring tank. The air-assisted mixing unit includes an annular main pipe, which is communicated with the high-pressure air pipe. A number of arc-shaped branch pipes with the same diameter as the annular main pipe and spirally extending upward are arranged on the annular main pipe.

[0007] Further, 6 - 18 arc-shaped branch pipes are provided, and the arc-shaped branch pipes are evenly distributed on the annular main pipe at equal intervals.

[0008] Further, the radian of the arc-shaped branch pipe is less than π / 5.

[0009] Further, a valve is also provided on the pulp outlet.

[0010] Further, the inlet unit includes a hopper supported by a bracket. The material is conveyed from the hopper to the material outlet through a screw conveyor below the hopper.

[0011] Further, the first stirring paddle and the second stirring paddle are the same, and both are axial-flow inclined blade paddles.

[0012] The beneficial effects of the present utility model include:

[0013] The present application discloses a pulp stirring device assisted by high-pressure air mixing. Through high-pressure air assistance for mixing, the mixing and stirring effects of the pulp are greatly improved. Specifically, by setting an air-assisted mixing unit with a unique structure, high-pressure air is introduced into the stirring tank filled with pulp in a spiral upward form to achieve the improvement of the stirring effect of the pulp. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0016] Figure 2 It is a schematic diagram of the structure of the stirring tank of the present utility model.

[0017] Figure 3This is a schematic structural view of the air-assisted mixing unit of the present utility model.

[0018] Figure 4 This is a schematic cross-sectional view of the air-assisted mixing unit of the present utility model.

[0019] Figure 5 This is a schematic structural view of the feeding unit of the present utility model.

[0020] Wherein: agitation tank - 1, agitation shaft - 2, first agitation paddle - 3, second agitation paddle - 4, support member - 5, motor - 6, feeding unit - 7, high-pressure air pipe - 8, air-assisted mixing unit - 9, pulp outlet - 10, valve - 11, support - 71, hopper - 72, screw conveyor - 73, material outlet - 74, annular main pipe - 91, arc-shaped branch pipe - 92. Specific embodiments

[0021] The following will further elaborate on the specific embodiments of the present utility model in the form of combining with the attached drawings. However, the following embodiments only list the relatively preferred embodiments, which only play an explanatory role to help understand the present utility model and cannot be construed as a limitation on the present utility model.

[0022] Reference Figures 1-5 , a pulp agitation device assisted by high-pressure air mixing, comprising an agitation tank 1, a first agitation paddle 3 and a second agitation paddle 4 arranged on an agitation shaft 2 are driven by a motor 6 installed on a support member 5. A feeding unit 7 is arranged above the agitation tank. A high-pressure air pipe 8 communicated with an external air source extends into the agitation tank and is connected to an air-assisted mixing unit 9 in the agitation tank. A pulp outlet 10 is further arranged at the bottom of the agitation tank. The air-assisted mixing unit 9 includes an annular main pipe 91, the annular main pipe is communicated with the high-pressure air pipe, and a plurality of arc-shaped branch pipes 92 with the same diameter as the annular main pipe and spirally extending upward are arranged on the annular main pipe.

[0023] The core design of this pulp agitation device lies in improving the mixing efficiency and uniformity of the pulp through the assistance of high-pressure air mixing. The entire device consists of the following key components, which work together to achieve an efficient pulp agitation process.

[0024] The agitation tank 1 is the basis of the entire device, which provides a necessary accommodation space for the pulp. The first agitation paddle 3 and the second agitation paddle 4 on the agitation shaft 2 are key components for realizing pulp agitation. They rotate through the drive of the motor 6 to generate an agitation force, causing the pulp to be mixed in the agitation tank. The support member 5 provides a stable support for the agitation shaft to ensure the normal operation of the agitation paddle.

[0025] The feeding unit 7 is located above the stirring tank and is responsible for adding pulp or raw materials into the stirring tank, providing raw materials for the stirring process. The high-pressure air pipe 8 is connected to an external air source and extends deep into the stirring tank to provide high-pressure air for the air-assisted mixing unit 9. The introduction of this high-pressure air can significantly improve the mixing effect of the pulp. Especially when dealing with viscous or heavy pulp, the injection of high-pressure air helps to break the surface tension of the pulp and promote the uniform mixing of the pulp.

[0026] The design of the air-assisted mixing unit 9 is very crucial. It includes an annular main pipe 91 and several arc-shaped branch pipes 92. The annular main pipe is connected to the high-pressure air pipe to ensure that high-pressure air can be evenly distributed throughout the stirring tank. The design of the arc-shaped branch pipes enables the high-pressure air to enter the pulp in a spiral upward manner, increasing the contact area between the air and the pulp and further improving the mixing efficiency. This design can also reduce the generation of air bubbles and prevent the formation of large bubbles in the pulp, which may affect the stirring effect.

[0027] The pulp outlet 10 is located at the bottom of the stirring tank and is used to discharge the well-stirred pulp for further processing or use.

[0028] During use, the entire working process of the above device is as follows: First, the pulp or raw materials are added into the stirring tank 1 through the feeding unit 7. Then, the motor 6 drives the stirring paddle to rotate, starting the stirring process. At the same time, high-pressure air enters the stirring tank through the high-pressure air pipe 8 and the air-assisted mixing unit 9 and mixes with the pulp. The design of the arc-shaped branch pipes 92 enables the air to be fully mixed with the pulp in a spiral upward manner, improving the mixing efficiency. Finally, the well-stirred pulp is discharged through the pulp outlet 10, completing the entire stirring process.

[0029] The technical effects brought by the above technical solution include: improving the stirring efficiency and uniformity of the pulp, especially being remarkable when dealing with viscous or heavy pulp; reducing the generation of air bubbles and avoiding uneven phenomena during the stirring process; with the assistance of high-pressure air, the wear of the stirring paddle can be reduced, extending the service life of the equipment; the entire stirring process is more energy-saving and efficient, improving the overall efficiency of pulp processing.

[0030] Preferably, referring to Figures 3-4 There are 6 - 18 arc-shaped branch pipes provided, and the arc-shaped branch pipes 92 are evenly distributed on the annular main pipe 91 at equal intervals. The radian of the arc-shaped branch pipe is less than π / 5.

[0031] More preferably, a valve 11 is further provided on the pulp outlet 10. The feeding unit 7 includes a hopper 72 supported by a bracket 71, and the material below the hopper is conveyed from the hopper 72 to the material outlet 74 through a screw conveyor 73. The first stirring paddle and the second stirring paddle are the same, both being axial-flow inclined blade paddles.

[0032] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and do not limit the scope of the present invention. Without departing from the spirit of the present invention, various deformations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope determined by the claims of the present invention.

Claims

1. A slurry stirring device for high pressure air assisted mixing, characterized in that: The invention comprises a stirring tank (1), a first stirring paddle (3) and a second stirring paddle (4) arranged on a stirring shaft (2) and driven by a motor (6) installed on a support member (5), a feeding unit (7) being arranged above the stirring tank, a high-pressure air pipe (8) communicating with an external air source extending deep into the stirring tank and connected to an air-assisted mixing unit (9) in the stirring tank, a slurry outlet (10) being also arranged at the bottom of the stirring tank, the air-assisted mixing unit (9) comprising an annular main pipe (91) communicating with the high-pressure air pipe, and a plurality of arc-shaped branch pipes (92) having the same diameter as the annular main pipe and extending spirally upward are arranged on the annular main pipe.

2. The slurry stirring device for high pressure air assisted mixing according to claim 1, characterized in that: The arc-shaped branch pipes are provided in a number of 6 to 18, and the arc-shaped branch pipes (92) are evenly distributed on the annular main pipe (91) at equal distances from each other.

3. The slurry stirring device for high pressure air assisted mixing according to claim 1, characterized in that: The arc angle of the arc-shaped branch pipe is less than π / 5.

4. The slurry stirring device for high pressure air assisted mixing according to claim 1, characterized in that: The slurry outlet (10) is also provided with a valve (11).

5. The slurry stirring device for high pressure air assisted mixing according to claim 1, characterized in that: The feeding unit (7) comprises a hopper (72) supported by a bracket (71), and a screw conveyor (73) is provided below the hopper to convey materials from the hopper (72) to a material outlet (74).

6. The slurry stirring device for high pressure air assisted mixing according to claim 1, characterized in that: The first stirring paddle and the second stirring paddle are the same, both of which are axial flow inclined blade paddles.

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