Powder material and moisture mixing device

Abstract

The utility model provides a powder material and moisture mixing device which comprises an outer cylinder body, an inner cylinder body and a plurality of feeding pipes, a volute-shaped suction opening is formed in the top end of the side wall of the outer cylinder body, and a buffer storage bin is arranged at the bottom end of the side wall of the outer cylinder body; the inner cylinder body is inserted into the central axis of the outer cylinder body, an air inlet channel is formed in the inner cylinder body in a penetrating mode in the axial direction, the bottom end of the inner cylinder body extends to the lower middle portion of the outer cylinder body, and a rotational flow channel is formed between the outer wall of the inner cylinder body and the inner wall of the outer cylinder body; the multiple feeding pipes are all communicated with the lower middle portion of the outer barrel and evenly distributed on the same cross section, output ports of the feeding pipes face the outer wall of the inner barrel, and a plurality of atomization nozzles are evenly distributed on the outer wall of the inner barrel. The powder material and moisture mixing device has the advantages of scientific design, more sufficient powder material dispersion, more uniform water and powder mixing and contribution to improvement of the final product quality.

Description

Technical Field

[0001] The utility model relates to a material mixing device, specifically to a mixing device for powder materials and moisture. Background Art

[0002] The applicant disclosed an air purification ball, a preparation method thereof and an air purifier in the patent with the application number 201811102363.0. Among them, the air purification ball is made by mixing powder materials such as hydrated lime powder, heavy calcium powder, zeolite powder, tourmaline powder, talc powder, white cement, barite, diatomite, etc., and then made into small balls. The functional materials added to the product can continuously release negative oxygen ions into the air, playing a role in purifying the air. Therefore, the applicant also calls it a negative oxygen ion ball.

[0003] When preparing the above-mentioned negative oxygen ion ball, various powder materials need to be mixed together and then mixed evenly with a little water for subsequent granulation. The existing mixing method is to use the high-speed rotation of a horizontal cylinder to make the powder materials tumble in the cylinder. At the same time, a spray head is used to spray water into the horizontal cylinder to mix the powder materials with water. Since the powder materials are close to the cylinder wall when tumbling in the horizontal cylinder, the spray head can only spray water droplets on the surface of the powder materials, resulting in uneven mixing of water and powder and affecting the uniformity of the final balls.

[0004] In order to solve the above problems, people have been seeking an ideal technical solution. Summary of the Invention

[0005] The purpose of the utility model is to overcome the deficiencies of the prior art, so as to provide a mixing device for powder materials and moisture with scientific design, more sufficient dispersion of powder materials, more uniform mixing of water and powder, and helpful for improving the quality of the final product.

[0006] To achieve the above purpose, the technical solution adopted by the utility model is: a mixing device for powder materials and moisture, including an outer cylinder, an inner cylinder and multiple feed pipes. A volute-shaped air extraction port is arranged at the top end of the side wall of the outer cylinder, and a buffer bin is arranged at the bottom end; the inner cylinder is inserted at the central axis of the outer cylinder, and an air inlet channel is axially formed through the inner cylinder. The bottom end of the inner cylinder extends to the middle and lower part of the outer cylinder, and a swirling channel is formed between the outer wall of the inner cylinder and the inner wall of the outer cylinder; multiple feed pipes are all communicated with the middle and lower part of the outer cylinder and are evenly distributed on the same cross-section. The output port of the feed pipe is arranged towards the outer wall of the inner cylinder, and a plurality of atomizing spray heads are evenly distributed on the outer wall of the inner cylinder.

[0007] Based on the above, it further includes a circulating air duct and a circulating fan installed on the circulating air duct. The air inlet end of the circulating air duct is communicated with the volute-shaped air extraction port, and the air outlet end of the circulating air duct is communicated with the top end of the air inlet channel.

[0008] Based on the above, the upper half of the outer cylinder is a cylindrical section, and the lower half is an inverted conical section. A plurality of the feed pipes are all connected to the inverted conical section, and the output ports of the plurality of the feed pipes are arranged obliquely upward.

[0009] Based on the above, a pneumatic hammer is installed on the outer wall of the buffer bin.

[0010] Based on the above, there are four feed pipes in total.

[0011] The utility model has substantial features and progress compared with the prior art. Specifically, by arranging the volute-shaped air extraction port at the top end of the side wall of the outer cylinder and opening the air inlet channel in the inner cylinder, the air passes through the bottom end of the inner cylinder, the swirl channel and the volute-shaped air extraction port in sequence, forming an upward swirl in the swirl channel, lifting the powdery material sprayed from the feed pipe, making the powder dispersed evenly, and then using a plurality of the atomizing nozzles to spray atomized water vapor, so that the powder and the water vapor are evenly mixed. After being wetted, the weight of the powder increases and it falls back into the buffer bin for temporary storage for subsequent granulation use. It has the advantages of scientific design, more sufficient powder dispersion, more uniform water-powder mixing, and is helpful for improving the quality of the final product.

[0012] Furthermore, the arrangement of the circulating air duct and the circulating fan enables the air to circulate inside the system. On the one hand, it can make the air pressure more stable, which is beneficial to the stable diffusion and uniform mixing of the powder and the atomized water vapor. On the other hand, it can prevent the fan from sucking the powder out of the system, which is beneficial to recycling and environmental protection.

[0013] Furthermore, the output ports of the plurality of the feed pipes are arranged obliquely upward, which can provide an initial upward force for the sprayed powder and is conducive to the swirl lifting the powder. The arrangement of the pneumatic hammer can shake off the powder adhering to the inner wall of the buffer bin by knocking, ensuring smooth discharging. Description of the Drawings

[0014] Figure 1 is a schematic diagram of the internal structure of the mixing device for powder materials and moisture in the utility model.

[0015] Figure 2 is a schematic diagram of the external structure of the mixing device for powder materials and moisture in the utility model.

[0016] Figure 3 is a top view of the outer cylinder in the utility model.

[0017] In the figure: 1. Outer cylinder; 2. Inner cylinder; 3. Feed pipe; 4. Volute-shaped air extraction port; 5. Buffer bin; 6. Air inlet channel; 7. Swirl channel; 8. Atomizing nozzle; 9. Circulation air duct; 10. Circulation fan; 11. Pneumatic hammer. Detailed implementation mode

[0018] The technical solution of the present utility model will be further described in detail below through specific implementation modes.

[0019] As Figures 1 - 3 shown, a mixing device for powder materials and moisture includes an outer cylinder 1, an inner cylinder 2 and four feed pipes 3. A volute-shaped air extraction port 4 is provided at the top end of the side wall of the outer cylinder 1, and a buffer bin 5 is provided at the bottom end. The inner cylinder 2 is inserted at the central axis of the outer cylinder 1. An air inlet channel 6 is axially formed through the inner cylinder 2. The bottom end of the inner cylinder 2 extends to the middle and lower part of the outer cylinder 1. A swirl channel 7 is formed between the outer wall of the inner cylinder 2 and the inner wall of the outer cylinder 1. The four feed pipes 3 are all communicated with the middle and lower part of the outer cylinder 1 and are evenly distributed on the same cross-section. The output port of the feed pipe 3 is arranged towards the outer wall of the inner cylinder 2. A plurality of atomizing nozzles 8 are also evenly distributed on the outer wall of the inner cylinder 2.

[0020] During specific use, the volute-shaped air extraction port 4 extracts air to form a negative pressure, driving the air flow to sequentially pass through the bottom end of the inner cylinder 2, the swirl channel 7 and the volute-shaped air extraction port 4, forming an upward swirl in the swirl channel 7. The powder in the four feed pipes 3 evenly enters the outer cylinder 1 from all around and impacts the outer wall of the inner cylinder 2. The upward air flow will carry the powder into the swirl channel 7. At the same time, the atomizing nozzles 8 spray atomized water vapor into the swirl channel 7, so that the powder and the water vapor are evenly mixed. After being wetted, the weight of the powder increases and it falls back into the buffer bin 5 for temporary storage for subsequent granulation use.

[0021] In order to make the water-powder mixing process more stable, the mixing device for powder materials and moisture further includes a circulation air duct 9 and a circulation fan 10 installed on the circulation air duct 9. The air inlet end of the circulation air duct 10 is communicated with the volute-shaped air extraction port 4, and the air outlet end of the circulation air duct 9 is communicated with the top end of the air inlet channel 6. In this way, the air circulates inside the system, which can make the air pressure more stable, is conducive to the stable diffusion and uniform mixing of the powder and the atomized water vapor, and can also prevent the fan from pumping the powder out of the system to cause pollution.

[0022] In order to make the powder easier to be carried up by the cyclone, the upper half of the outer cylinder body 1 is a cylindrical section 11, and the lower half is an inverted conical section 12. The four feed pipes 3 are all connected to the inverted conical section 12, and the output ports of the four feed pipes 3 are arranged obliquely upward. During use, the initial spraying direction of the powder is obliquely upward, providing an initial upward force, which is conducive to the cyclone carrying up the powder.

[0023] In order to make the discharging smoother, a pneumatic hammer 11 is installed on the outer wall of the buffer bin 5. During use, through the intermittent knocking of the pneumatic hammer 11, the powder adhering to the inner wall of the buffer bin 5 can be shaken off to ensure smooth discharging.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that it is still possible to modify the specific implementation manners of the present invention or perform equivalent replacements for some technical features. Without departing from the spirit of the technical solutions of the present invention, they should all be covered by the scope of the technical solutions claimed by the present invention.

Claims

1. A device for mixing powder material and water, characterized in that: It includes an outer cylinder, an inner cylinder and a plurality of feed pipes, the top end of the outer cylinder side wall is provided with a volute-shaped exhaust port, and the bottom end is provided with a buffer bin; the inner cylinder is inserted at the central axis of the outer cylinder, the inner cylinder is axially penetrated with an air inlet channel, the bottom end of the inner cylinder extends to the middle and lower part of the outer cylinder, and a swirl channel is formed between the outer wall of the inner cylinder and the inner wall of the outer cylinder; the plurality of feed pipes are connected with the middle and lower part of the outer cylinder and are evenly distributed on the same cross section, the output port of the feed pipe is arranged toward the outer wall of the inner cylinder, and a plurality of atomizing nozzles are evenly distributed on the outer wall of the inner cylinder.

2. The device for mixing powder material and water according to claim 1, characterized in that: It also includes a circulating air duct and a circulating fan installed on the circulating air duct, the air inlet end of the circulating air duct is connected to the volute-shaped air outlet, and the air outlet end of the circulating air duct is connected to the top of the air inlet channel.

3. The device for mixing powder material and water according to claim 1 or 2, characterized in that: The upper half of the outer cylinder is a cylindrical section, and the lower half is an inverted cone section. The plurality of feed pipes are connected to the inverted cone section, and the output ports of the plurality of feed pipes are arranged obliquely upward.

4. The device for mixing powder material and water according to claim 3, characterized in that: A pneumatic hammer is installed on the outer wall of the buffer silo.

5. The device for mixing powder material and water according to any one of claims 1, 2 and 4, characterized in that: There are four feeding pipes in total.

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