Rod type constant volume feeder

Abstract

The utility model discloses a rod type constant volume discharger which comprises a discharger body, the discharger body is provided with a constant volume cylinder and an upper sealing body used for sealing a feeding port of the constant volume cylinder, the discharger body is provided with an anti-blocking feeding mechanism communicated with the feeding port of the constant volume cylinder, and the anti-blocking feeding mechanism comprises a stock bin and a pulse blowing assembly. A discharging port of the stock bin and an air outlet of the pulse blowing assembly are both communicated with a feeding port of the constant volume cylinder, and the upper sealing body is matched with the discharging port of the stock bin and the air outlet of the pulse blowing assembly. The constant-volume discharger is provided with the anti-blocking feeding mechanism, when materials are supplied to the constant-volume cylinder through the stock bin, the pulse blowing assembly can intermittently blow air to the feeding port of the constant-volume cylinder according to a certain frequency so as to prevent the problem that the feeding port is blocked due to extrusion of the materials, it is guaranteed that the constant-volume discharger works stably and smoothly, and the working efficiency is improved. And besides, pulse blowing can prevent the blockage phenomenon and can promote material flowing, and the discharging effect is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of electrolytic aluminum production equipment, and in particular to a rod-type constant volume feeder. Background Technology

[0002] The constant-volume feeder at the top of the aluminum electrolytic cell is one of the important pieces of equipment for material balance required for stable production. During the aluminum electrolytic cell production process, alumina powder needs to be continuously replenished. This feeding is done at fixed times and in fixed quantities, typically every 1 to 2 minutes. In existing technology, such as the Chinese utility model patent with publication number CN218951518U entitled "Constant-volume feeder and electrolytic aluminum system," the constant-volume feeder is located in the middle of a material hopper containing alumina and fluoride salt powder. The powder enters through the feed window of the feeding cylinder, passes through the inlet, and fills the entire constant-volume cavity of the constant-volume cylinder before exiting into the electrolytic cell.

[0003] When the material hopper feeds material into the constant volume cylinder, it relies entirely on the material's own weight to flow into the constant volume cavity. Considering the powder properties of alumina and fluoride salts, once the material is squeezed and clogged at the feed inlet, it becomes difficult to feed the material, thus causing operational obstacles. Therefore, there is an urgent need for a constant volume feeder that prevents material blockage. Utility Model Content

[0004] The purpose of this invention is to provide a rod-type constant volume feeder to solve the problem that existing constant volume feeders are prone to material compression and blockage of the constant volume cavity inlet when using a material box for feeding.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A rod-type constant-volume feeder includes a feeder body, which has a constant-volume cylinder and an upper sealing body for sealing the feed inlet of the constant-volume cylinder. The feeder body is provided with an anti-clogging feeding mechanism communicating with the feed inlet of the constant-volume cylinder. The anti-clogging feeding mechanism includes a hopper and a pulse blowing assembly. The outlet of the hopper and the outlet of the pulse blowing assembly are both communicating with the feed inlet of the constant-volume cylinder. The upper sealing body is adapted to the outlet of the hopper and the outlet of the pulse blowing assembly. A further technical solution is that a sealing mating surface is formed between the outlet of the hopper and the upper sealing body. A further technical solution is that the upper sealing body is a soft rubber stopper. A further technical solution is as follows: the pulse blowing assembly includes an air source, a pulse solenoid valve, an explosion-proof valve, and a blowing channel. The blowing channel is located at the feed inlet of the constant volume cylinder. The outlet of the air source is connected to the inlet of the pulse solenoid valve. The outlet of the pulse solenoid valve is connected to the inlet of the blowing channel. The explosion-proof valve is installed on the pressure relief port of the blowing channel.

[0007] A further technical solution is that the explosion-proof valve is a pressure relief valve. A further technical solution is that a one-way valve is installed at the outlet end of the air blowing channel. A further technical solution is that a screen is installed inside the hopper.

[0008] Compared with the prior art, the present invention can achieve at least one of the following beneficial effects:

[0009] This utility model proposes a rod-type constant volume feeder, which has an anti-clogging feeding mechanism. When feeding material into the constant volume cylinder through the hopper, the pulse blowing component can intermittently blow air into the feed inlet of the constant volume cylinder at a certain frequency to prevent the material from being squeezed and causing blockage at the feed inlet, thus ensuring the stable and smooth operation of the constant volume feeder. In addition to preventing blockage, the pulse blowing can also promote material flow and improve the feeding effect. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of a rod-type constant volume feeder according to the present invention.

[0011] Figure 2 This is a schematic diagram of the anti-clogging feeding mechanism of this utility model.

[0012] Reference numerals in the attached drawings: 1. Feeder body; 2. Volumetric cylinder; 3. Upper sealing body; 4. Anti-clogging feeding mechanism; 5. Hopper; 6. Pulse air blowing assembly; 7. Air source; 8. Pulse solenoid valve; 9. Explosion-proof valve; 10. Air blowing channel; 11. Check valve; 12. Screen. Detailed Implementation

[0013] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0014] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0015] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0016] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0017] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Example 1:

[0020] This implementation example Figure 1 and Figure 2As shown, a rod-type constant volume feeder includes a feeder body 1, which has a constant volume cylinder 2 and an upper sealing body 3 for sealing the feed inlet of the constant volume cylinder 2. The feeder body 1 is provided with an anti-clogging feeding mechanism 4 that communicates with the feed inlet of the constant volume cylinder 2. The anti-clogging feeding mechanism 4 includes a hopper 5 and a pulse blowing assembly 6. The outlet of the hopper 5 and the air outlet of the pulse blowing assembly 6 are both connected to the feed inlet of the constant volume cylinder 2. The upper sealing body 3 is adapted to the outlet of the hopper 5 and the air outlet of the pulse blowing assembly 6. A hopper 5 is set on the feeder body 1 to temporarily store a large amount of raw materials (alumina and fluoride salt powder). Then, as the upper sealing body 3 moves up and down, the material in the hopper 5 flows from the inlet of the constant volume cylinder 2 into the constant volume chamber. When powdery material is squeezed, stuck, and blocks the inlet, the pulse blowing component 6 can intermittently blow air at a certain frequency to disperse or blow off the squeezed or blocked material, so as to prevent the material from being squeezed and causing blockage at the inlet, ensuring that the constant volume feeder works stably and smoothly. In addition, pulse blowing can not only prevent blockage, but also promote material flow and improve the feeding effect.

[0021] It is worth noting that when the upper sealing body 3 descends, it can seal both the outlet of the hopper 5 and the air outlet of the pulse blowing assembly 6, achieving multiple benefits. Furthermore, it reduces the need for air-closing or air-cut-off control components in the pulse blowing assembly 6, saving installation and air consumption costs. Preferably, a sealing mating surface is formed between the outlet of the hopper 5 and the upper sealing body 3. The sealing mating surface is a conical surface, allowing the upper sealing body 3 to block the outlet of the hopper 5 when descending. Preferably, the upper sealing body 3 is a soft rubber plug, such as a rubber stopper. When descending, the upper sealing body 3 can better enter the inlet and block both the inlet and the air outlet of the pulse blowing assembly 6.

[0022] Example 2:

[0023] Based on the above embodiments, the pulse blowing assembly 6 includes an air source 7, a pulse solenoid valve 8, an explosion-proof valve 9, and a blowing channel 10. The blowing channel 10 is located at the feed inlet of the constant volume cylinder 2. The air outlet of the air source 7 is connected to the air inlet of the pulse solenoid valve 8, and the air outlet of the pulse solenoid valve 8 is connected to the air inlet of the blowing channel 10. The explosion-proof valve 9 is installed on the pressure relief port of the blowing channel 10.

[0024] The air source 7 can be a compressed air tank. Under the control of the pulse solenoid valve 8, the compressed air from the air source 7 can be introduced into the air blowing channel 10 in the form of pulses through the hose. Then, the feed inlet of the constant volume cylinder 2 is purged to disperse or blow off the squeezed or blocked material, so as to prevent the material from being squeezed and causing the feed inlet to be blocked. This ensures that the constant volume feeder works stably and smoothly. In addition, pulse blowing can not only prevent blockage, but also promote material flow and improve the feeding effect.

[0025] The explosion-proof valve 9 primarily functions to release pressure promptly when the internal pressure of the constant-volume cylinder 2 becomes excessive, thus preventing explosions. Preferably, the explosion-proof valve 9 is a pressure relief valve. Preferably, a one-way valve 11 is installed at the outlet of the air blowing channel 10. The one-way valve 11 prevents material from entering the air blowing channel 10. Preferably, a screen 12 is installed inside the hopper 5. The screen 12 is used to screen the material, refining it and further preventing blockages.

[0026] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A rod-type constant-volume feeder, comprising a feeder body (1), the feeder body (1) having a constant-volume cylinder (2) and an upper sealing body (3) for sealing the feed inlet of the constant-volume cylinder (2), characterized in that: The feeder body (1) is provided with an anti-blocking feeding mechanism (4) that communicates with the feed inlet of the constant volume cylinder (2); wherein, the anti-blocking feeding mechanism (4) includes a hopper (5) and a pulse blowing assembly (6), the discharge port of the hopper (5) and the air outlet of the pulse blowing assembly (6) are both connected to the feed inlet of the constant volume cylinder (2), and the upper sealing body (3) is adapted to the discharge port of the hopper (5) and the air outlet of the pulse blowing assembly (6).

2. The rod-type constant-volume feeder according to claim 1, characterized in that: A sealing mating surface is formed between the discharge port of the hopper (5) and the upper sealing body (3).

3. The rod-type constant-volume feeder according to claim 1, characterized in that: The upper seal (3) is a soft rubber stopper.

4. The rod-type constant-volume feeder according to claim 1, characterized in that: The pulse blowing assembly (6) includes an air source (7), a pulse solenoid valve (8), an explosion-proof valve (9), and a blowing channel (10). The blowing channel (10) is located at the feed inlet of the constant volume cylinder (2). The outlet of the air source (7) is connected to the inlet of the pulse solenoid valve (8). The outlet of the pulse solenoid valve (8) is connected to the inlet of the blowing channel (10). The explosion-proof valve (9) is installed on the pressure relief port of the blowing channel (10).

5. The rod-type constant-volume feeder according to claim 4, characterized in that: The explosion-proof valve (9) is a pressure relief valve.

6. The rod-type constant-volume feeder according to claim 4, characterized in that: The air outlet of the air blowing channel (10) is equipped with a one-way valve (11).

7. The rod-type constant-volume feeder according to claim 1, characterized in that: The hopper (5) is equipped with a screen (12).

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