Complexing agent feeding device

Abstract

The utility model relates to the technical field of complexing agents, in particular to a complexing agent feeding device which comprises a stock bin, a conveying pipe is fixedly connected to the lower end of the stock bin, a first pneumatic valve is fixedly installed in the conveying pipe, a transfer bin is fixedly connected to the end, away from the stock bin, of the conveying pipe, and an air cylinder is fixedly installed at one end of the transfer bin. A stone mill push ring is fixedly installed at the end of the air cylinder, a hollow cavity is formed in the stone mill push ring, a nitrogen conveying pipe is fixedly connected to one side of the transfer bin, and a third pneumatic valve is fixedly installed in the nitrogen conveying pipe. The complexing agent feeding device can achieve quantitative feeding and is worthy of popularization.

Description

Technical Field

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

[0002] In the process of removing metal chloride from polysilicon or organosilicon high-boiling materials, it is necessary to add a complexing agent. Since the complexing agent is a solid powder, it generally requires manual supervision during the process of adding the complexing agent, and the material needs to be added regularly and quantitatively, which is time-consuming and labor-intensive, making the material addition process troublesome. Utility Model Content

[0003] The utility model aims to solve the shortcomings of the prior art that the feeding work needs manual supervision and is time-consuming and labor-intensive, and proposes a complexing agent feeding device.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A complexing agent feeding device is designed, including a silo, a conveying pipe is fixedly connected to the lower end of the silo, a first pneumatic valve is fixedly installed inside the conveying pipe, a transfer silo is fixedly connected to the end of the conveying pipe away from the silo, a cylinder is fixedly installed at one end of the transfer silo, a stone mill push ring is fixedly installed at the end of the cylinder, a hollow cavity is opened inside the stone mill push ring, a nitrogen delivery pipe is fixedly connected to one side of the transfer silo, a third pneumatic valve is fixedly installed inside the nitrogen delivery pipe, a quantitative tube is fixedly connected to the other side of the transfer silo, a second pneumatic valve is fixedly installed inside the quantitative tube.

[0006] Preferably, the quantitative tube is coaxially arranged with the end of the nitrogen delivery pipe close to the transfer bin.

[0007] Preferably, a rotating shaft is rotatably installed inside the silo, and a toggle plate is fixedly installed on one side of the rotating shaft.

[0008] Preferably, the bottom of the silo is semi-cylindrical, and the rotating shaft is coaxially arranged with the bottom of the silo.

[0009] Preferably, a blocking plate is fixedly installed inside the silo, and the middle part of the blocking plate is tilted downward.

[0010] The complexing agent feeding device proposed by the utility model has the beneficial effect that: during the working process, the complexing agent feeding device drives the toggle plate to rotate through the rotating shaft, and the rotation of the toggle plate can stir the material inside the silo, so that the material can be discharged more smoothly, and the stone mill push ring can be driven to move through the cylinder, and the conveying pipe can convey the material into the hollow cavity. The internal volume of the hollow cavity is fixed, and the amount of material conveyed each time can be guaranteed to be certain. The material inside the hollow cavity can be fully flushed into the quantitative tube through the nitrogen delivery pipe, so that there is no material residue inside the hollow cavity, the feeding is smooth, and automatic quantitative feeding is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of the transverse cross-sectional structure of the complexing agent feeding device proposed in the utility model;

[0012] Figure 2 This is a schematic diagram of the longitudinal cross-sectional structure of the complexing agent feeding device proposed by the utility model;

[0013] Figure 3 This is a schematic diagram of the top view of the complexing agent feeding device proposed by the utility model.

[0014] In the figure: 1. silo; 2. delivery pipe; 3. first pneumatic valve; 4. transfer bin; 5. cylinder; 6. graphite push ring; 7. hollow cavity; 8. quantitative tube; 9. second pneumatic valve; 10. nitrogen delivery pipe; 11. third pneumatic valve; 12. rotating shaft; 13. toggle plate; 14. blocking plate. DETAILED DESCRIPTION

[0015] 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 of the embodiments.

[0016] Example 1

[0017] Reference Figure 1-3 The complexing agent feeding device comprises a silo 1, a conveying pipe 2 is fixedly connected to the lower end of the silo 1, and the conveying pipe 2 is used to convey the complexing agent material. A first pneumatic valve 3 is fixedly installed inside the conveying pipe 2, and the first pneumatic valve 3 can control the on-off of the conveying pipe 2. When the first pneumatic valve 3 is opened, the material in the silo 1 can be conveyed to the transfer silo 4 through the conveying pipe 2. The end of the conveying pipe 2 away from the silo 1 is fixedly connected to the transfer silo 4, and a cylinder 5 is fixedly installed at one end of the transfer silo 4. A stone mill push ring 6 is fixedly installed at the end of the cylinder 5. The graphite push ring 6 can move in the transfer silo 4. A hollow cavity 7 is opened inside the stone mill push ring 6. The inside of the hollow cavity 7 is used to temporarily store materials. When the hollow cavity 7 is located below the conveying pipe 2, the conveying pipe 2 can convey the material into the hollow cavity 7. The internal volume of the hollow cavity 7 is fixed, and the amount of material that can be stored each time is also fixed.

[0018] A nitrogen delivery pipe 10 is fixedly connected to one side of the transfer warehouse 4. The end of the nitrogen delivery pipe 10 away from the transfer warehouse 4 is connected to the nitrogen delivery equipment. The interior of the nitrogen delivery pipe 10 is used to transport nitrogen. A third pneumatic valve 11 is fixedly installed inside the nitrogen delivery pipe 10, and the third pneumatic valve 11 can be used to control the on-off of the interior of the nitrogen delivery pipe 10. A quantitative tube 8 is fixedly connected to the other side of the transfer bin 4, and a second pneumatic valve 9 is fixedly installed inside the quantitative tube 8. The second pneumatic valve 9 can be used to control the on-off of the quantitative tube 8. The quantitative tube 8 and the nitrogen delivery pipe 10 are coaxially arranged near the end of the transfer bin 4. When the hollow cavity 7 is located between the quantitative tube 8 and the nitrogen delivery pipe 10, the hollow cavity 7, the quantitative tube 8 and the nitrogen delivery pipe 10 are all coaxially arranged. By opening the third pneumatic valve 11, the nitrogen delivery pipe 10 can transport nitrogen into the hollow cavity 7. By opening the second pneumatic valve 9, nitrogen will flow into the quantitative tube 8 through the hollow cavity 7. The nitrogen pulse purging method can quickly transport materials and avoid material residue in the hollow cavity 7. The material stored in the hollow cavity 7 will be fully transported to the quantitative tube 8 along with the flowing nitrogen, and the material will be transported to the subsequent equipment through the quantitative tube 8.

[0019] A rotating shaft 12 is installed inside the silo 1 for rotation. One end of the rotating shaft 12 is fixedly connected to an external power device, and the rotating shaft 12 can be driven to rotate by the external power device. A toggle plate 13 is fixedly installed on one side of the rotating shaft 12. The rotation of the rotating shaft 12 can drive the toggle plate 13 to rotate. During the rotation of the toggle plate 13, the material inside the silo 1 can be stirred. The bottom of the silo 1 is semi-cylindrical, and the rotating shaft 12 is coaxially arranged with the bottom of the silo 1. During the rotation of the toggle plate 13, it can fully contact with the bottom of the silo 1, which can improve the stirring effect of the material. When the conveying pipe 2 conveys the material in the silo 1 to the transfer silo 4, the material at the bottom of the silo 1 above the conveying pipe 2 is sent out, and the material may form a gap above the conveying pipe 2, and cannot fall into the conveying pipe 2 in time and evenly. The material inside the silo 1 can be fully stirred by the toggle plate 13, which can ensure that the material falls smoothly.

[0020] A blocking plate 14 is fixedly installed inside the silo 1, and the middle part of the blocking plate 14 is tilted downward. As shown in the attached figure, the blocking plate 14 is located at the top of the silo 1. When the upper cover of the silo 1 is opened to replenish materials, the blocking plate 14 can separate the silo 1 into an upper and lower part. The upper part of the silo 1 is used to pour materials, and the materials will fall downward into the lower part of the silo 1 through the blocking plate 14. The lower part of the silo 1 is stirred by rotating the toggle plate 13, and the toggle plate 13 drives the materials to be stirred. The blocking plate 14 can prevent the materials from being scattered. With the blocking of the blocking plate 14, the materials can be replenished during the working process of the toggle plate 13.

[0021] Working principle: During operation, the complexing agent feeding device puts the material into the silo 1 through the blocking plate 14, and drives the toggle plate 13 to rotate through the rotating shaft 12. The rotation of the toggle plate 13 can stir the material inside the silo 1, making the material discharge smoother. The cylinder 5 is started to drive the stone mill push ring 6 to move, so that the hollow cavity 7 is located below the conveying pipe 2, and the first pneumatic valve 3 is opened. The material inside the silo 1 enters the hollow cavity 7 through the conveying pipe 2. The cylinder 5 is started again to drive the stone mill push ring 6 to move, so that the hollow cavity 7 moves to between the quantitative tube 8 and the nitrogen delivery pipe 10, and the second pneumatic valve 9 and the third pneumatic valve 11 are opened. Nitrogen enters the hollow cavity 7 through the nitrogen delivery pipe 10, and the material inside the hollow cavity 7 is rushed to the quantitative tube 8 by the nitrogen gas flow. The quantitative tube 8 can convey the material to the subsequent equipment to complete the quantitative feeding.

[0022] 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 within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A complexing agent feeding device, comprising a silo (1), characterized in that: The lower end of the silo (1) is fixedly connected to a delivery pipe (2), a first pneumatic valve (3) is fixedly installed inside the delivery pipe (2), an end of the delivery pipe (2) away from the silo (1) is fixedly connected to a transfer bin (4), one end of the transfer bin (4) is fixedly installed with a cylinder (5), the end of the cylinder (5) is fixedly installed with a millstone push ring (6), a hollow cavity (7) is provided inside the millstone push ring (6), one side of the transfer bin (4) is fixedly connected to a nitrogen delivery pipe (10), a third pneumatic valve (11) is fixedly installed inside the nitrogen delivery pipe (10), and the other side of the transfer bin (4) is fixedly connected to a quantitative pipe (8), a second pneumatic valve (9) is fixedly installed inside the quantitative pipe (8).

2. The complexing agent feeding device according to claim 1, characterized in that: The quantitative tube (8) is coaxially arranged with the end of the nitrogen delivery pipe (10) close to the transfer bin (4).

3. The complexing agent feeding device according to claim 1, characterized in that: A rotating shaft (12) is rotatably mounted inside the silo (1), and a toggle plate (13) is fixedly mounted on one side of the rotating shaft (12).

4. The complexing agent feeding device according to claim 3, characterized in that: The bottom of the silo (1) is semi-cylindrical, and the rotating shaft (12) is coaxially arranged with the bottom of the silo (1).

5. The complexing agent feeding device according to claim 1, characterized in that: A blocking plate (14) is fixedly installed inside the silo (1), and the middle portion of the blocking plate (14) is tilted downward.

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