Uniform feeding device

Abstract

The utility model relates to a uniform feeding device which comprises a feeding chute, a distributing device, a distributing chute, a centrifugal fan and an air supply main pipe, the distributor is arranged at the top of the stock bin; a material inlet of the material distributor is connected with the elevator through a material feeding chute; a feed opening is formed in the bottom of the distributor; a plurality of distributing chutes are uniformly arranged below the distributor along the radial direction of the stock bin; the feeding end of the material distribution chute is communicated with the discharging opening of the material distributor, and the discharging end of the material distribution chute extends into the material bin; an air supply main pipe is arranged at the top of the stock bin; the air supply main pipe is externally connected with a centrifugal fan; a plurality of air supply branch pipes are arranged in the circumferential direction of the air supply main pipe; and air outlets of the plurality of air supply branch pipes are respectively communicated with the material distributor and the material distribution chute. According to the device, the loading capacity of the stock bin can be improved; meanwhile, unbalance loading can be prevented, and potential safety hazards are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of feeding, in particular to a uniform feeding device. Background Art

[0002] In the current electrolytic aluminum production process, alumina particle size segregation affects the electrolytic cell production process, attracting more and more attention and research from the aluminum industry at home and abroad. With the application of large-scale electrolytic cells and advanced cell control machines, the control of alumina concentration and feeding time has become more stringent, so maintaining good material uniformity and balance is particularly important.

[0003] Due to the large diameter of the silo, uniform feeding is particularly important in order to increase the loading capacity and prevent uneven loading. The existing feeding structure is direct feeding, which is prone to uneven loading and can cause danger. Utility Model Content

[0004] The utility model mainly solves the technical problems of uneven loading in direct feeding in the prior art, and proposes a uniform feeding device, which can prevent uneven loading and avoid safety hazards.

[0005] The utility model provides a uniform feeding device, comprising: a feeding chute, a distributor, a material distribution chute, a centrifugal fan and an air supply main;

[0006] The distributor is arranged on the top of the silo; the feed port of the distributor is connected to the elevator through a feed chute; a discharge port is arranged at the bottom of the distributor; multiple distribution chutes are evenly arranged below the distributor along the radial direction of the silo; the feed end of the distribution chute is connected to the discharge port of the distributor, and the discharge end of the distribution chute extends into the silo;

[0007] An air supply main is provided on the top of the silo; the air supply main is externally connected to a centrifugal fan; a plurality of air supply branches are provided circumferentially of the air supply main; the air outlets of the plurality of air supply branches are respectively connected to the distributor, the feed chute and the plurality of branch and distribution chutes.

[0008] Furthermore, a feeding port is provided at the center of the bottom of the distributor.

[0009] Furthermore, a branch pipe valve is provided on the air supply branch pipe.

[0010] Furthermore, the air supply main pipe is a polygonal annular pipe; the air supply main pipe includes: an air supply bend pipe and an air supply straight pipe; the air supply bend pipe and the air supply straight pipe are alternately connected.

[0011] Furthermore, two feeding chutes are arranged at the inlet of the distributor.

[0012] Furthermore, the number of the distribution chutes is 3-10.

[0013] Furthermore, the feed end of the distribution chute is higher than the discharge end.

[0014] Furthermore, the air outlet of the air supply branch pipe is close to the feed end of the distribution chute.

[0015] Furthermore, the feed end of the feed chute is higher than the discharge end.

[0016] Furthermore, the feed opening of the distributor is located at the center axis of the silo.

[0017] Compared with the prior art, the uniform feeding device provided by the utility model has a central discharge port in the middle of the distributor, and multiple distribution chutes are arranged around the distributor, so that the alumina powder enters the silo at multiple points; it can increase the loading capacity of the silo; and at the same time prevent unbalanced loading and avoid safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a top view of the uniform feeding device of the utility model;

[0019] Figure 2 yes Figure 1 Middle BB section view;

[0020] Figure 3 yes Figure 1 Middle AA section view;

[0021] Figure 4 This is the structural diagram of the air supply main of the utility model;

[0022] Figure numerals: 1. Feed chute; 2. Distributor; 3. Distribution chute; 4. Centrifugal fan; 5. Air supply main pipe; 501. Air supply elbow pipe; 502. Air supply straight pipe; 6. Air supply branch pipe; 7. Branch pipe valve. DETAILED DESCRIPTION

[0023] To make the technical problems solved, the technical solutions adopted, and the technical effects achieved by the present invention more clearly apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely intended to illustrate the present invention and are not intended to limit the present invention. It should also be noted that, for ease of description, the accompanying drawings only illustrate portions relevant to the present invention, rather than all of its contents.

[0024] like Figure 1-3 As shown, the embodiment of the present invention provides a uniform feeding device, comprising: a feeding chute 1, a distributor 2, a distribution chute 3, a centrifugal fan 4 and an air supply main 5;

[0025] The distributor 2 is installed on the top of the silo. The feed port of the distributor 2 is connected to the elevator through the feed chute 1. The feed end of the feed chute 1 is higher than the discharge end. Two feed chutes 1 can be installed, which can enter the distributor 2 at the same time, one for use and the other as a backup.

[0026] The distributor 2 has a discharge port at its bottom. Multiple distribution chutes 3 are evenly distributed along the silo's radial direction below the distributor 2. The feed ends of the distribution chutes 3 are connected to the discharge port of the distributor 2, and the discharge ends of the distribution chutes 3 extend into the silo. There are three distribution chutes 3. The angle between any two adjacent distribution chutes is 120 degrees. The feed ends of the distribution chutes 3 are higher than the discharge ends.

[0027] An air supply main pipe 5 is arranged on the top of the silo; the air supply main pipe 5 is externally connected to a centrifugal fan 4; a plurality of air supply branch pipes 6 are circumferentially connected to the air supply main pipe 5; the air outlets of the plurality of air supply branch pipes 6 are respectively connected to the distributor 2, the feed chute 1 and the multiple branch material chutes 3; the air outlet of the air supply branch pipe 6 connected to the feed chute 1 is close to the discharge end of the feed chute.

[0028] The bottom center of the distributor 2 is provided with a discharge port. The discharge port of the distributor 2 is located at the center axis of the silo. Two feed chutes 1 are provided at the entrance of the distributor 2.

[0029] The air supply branch pipe 6 is provided with a branch valve 7. The outlet of the air supply branch pipe 6 is located near the feed end of the material distribution chute 3. The air supply main pipe 5 is a polygonal annular pipe and includes an air supply bend 501 and an air supply straight pipe 502. The air supply bend 501 and the air supply straight pipe 502 are alternately connected.

[0030] The working process of this utility model is as follows: Alumina powder is transported via an elevator (bucket elevator or air lift). Each elevator is connected to a corresponding feed chute 1, through which the alumina powder enters the distributor 2. The distributor 2 has a central discharge port located at its center. The distributor 2 is connected to multiple distribution chutes 3 on its exterior, which inject the alumina powder into the silo at multiple points.

[0031] The air supply to the distributor 2 and the distribution chute 1 is provided by a centrifugal fan 4, and an air supply main 5 is provided to connect with the centrifugal fan 4. A plurality of air supply branches 6 are provided at appropriate positions of the air supply main 5 to supply air to the distribution chute 3 and the distributor 2. Each air supply branch 6 is equipped with a branch valve 7 for adjusting the air volume.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications to the technical solutions described in the above embodiments, or equivalent replacement of some or all of the technical features therein, do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A uniform feeding device, characterized in that: include: A feed chute (1), a distributor (2), a distribution chute (3), a centrifugal fan (4) and an air supply main (5); The distributor (2) is arranged on the top of the silo; the feed port of the distributor (2) is connected to the elevator through the feed chute (1); a discharge port is arranged at the bottom of the distributor (2); a plurality of distribution chutes (3) are evenly arranged below the distributor (2) along the radial direction of the silo; the feed end of the distribution chute (3) is connected to the discharge port of the distributor (2), and the discharge end of the distribution chute (3) extends into the silo; An air supply main pipe (5) is provided on the top of the silo; the air supply main pipe (5) is externally connected to a centrifugal fan (4); a plurality of air supply branch pipes (6) are circumferentially provided on the air supply main pipe (5); the air outlets of the plurality of air supply branch pipes (6) are respectively connected to a distributor (2), a feed chute (1) and a plurality of branch material distribution chutes (3).

2. The uniform feeding device according to claim 1, characterized in that: A feeding port is provided at the center of the bottom of the distributor (2).

3. The uniform feeding device according to claim 1, characterized in that: A branch pipe valve (7) is provided on the air supply branch pipe (6).

4. The uniform feeding device according to claim 1, characterized in that: The air supply main pipe (5) is a polygonal annular pipe; the air supply main pipe (5) comprises an air supply bend pipe (501) and an air supply straight pipe (502); the air supply bend pipe (501) and the air supply straight pipe (502) are alternately connected.

5. The uniform feeding device according to claim 1, characterized in that: Two feeding chutes (1) are arranged at the inlet of the distributor (2).

6. The uniform feeding device according to claim 1, characterized in that: The number of the material distribution chutes (3) is 3-10.

7. The uniform feeding device according to claim 6, characterized in that: The feed end of the distribution chute (3) is higher than the discharge end.

8. The uniform feeding device according to claim 1, characterized in that: The air outlet of the air supply branch pipe (6) is close to the feed end of the distribution chute (3).

9. The uniform feeding device according to claim 1, characterized in that: The feed end of the feed chute (1) is higher than the discharge end.

10. The uniform feeding device according to claim 1, characterized in that: The discharge port of the distributor (2) is located at the center axis of the silo.

Images