Negative pressure charging mechanism for crude magnesium smelting

Abstract

The utility model relates to a negative pressure charging mechanism for crude magnesium smelting, which belongs to the technical field of crude magnesium feeding and comprises a reduction tank, a charging component and a hopper, a water jacket is sleeved outside a tank opening of the reduction tank, and a sealing sleeve is inserted into the tank opening of the reduction tank. The charging assembly comprises a feeding pipe, a negative pressure fan and a dust remover, the feeding pipe penetrates through the sealing sleeve and can extend into or out of the reduction tank, a feeding port connected with the hopper is upwards formed in the end, away from the reduction tank, of the feeding pipe, an air inlet of the negative pressure fan is communicated with the sealing sleeve, and an air outlet of the negative pressure fan is connected with the dust remover; and the dust remover is connected with the feeding hole. The charging mechanism replaces traditional manual inward pushing, and has the advantages that after improvement, negative pressure circulation can be used for sucking materials, automation is basically achieved during manual operation, the labor intensity of workers is greatly reduced, the speed can be controlled, the operation time is shortened, dust on ball materials is sucked away through negative pressure, dust removal, filtration, reuse and ball pressing are conducted, the quality of the ball materials is improved, and the working efficiency is improved. The yield is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of crude magnesium feeding, in particular to a negative pressure charging mechanism used for crude magnesium smelting. Background Art

[0002] In the existing technology, the main method for producing magnesium metal at home and abroad is still based on the horizontal reduction tank silicon thermal reduction method, and combustion holes are opened on both sides of the bottom of the reduction tank head for gas heating. Therefore, during the heating and reduction process, there is a temperature change field inside the reduction tank, and the temperature is lower as it is closer to the cooling water jacket.

[0003] In the existing crude magnesium smelting process, raw materials need to be added to the reduction tank manually. This process requires the hopper to slide to the top of the charging chute and place the raw materials on the charging chute at the reduction tank mouth through the switch at the bottom of the hopper. At the same time, it is also necessary to manually push the raw materials at the reduction tank mouth into the reduction tank through a pushing tool. Therefore, it takes a long time to fill a furnace reduction tank and requires a lot of manpower. Utility Model Content

[0004] The utility model provides a negative pressure charging mechanism for crude magnesium smelting, which solves the technical problems raised by the background technology in the prior art.

[0005] The utility model solves the above technical problems as follows: it comprises a reduction tank, a charging assembly and a hopper.

[0006] The outer surface of the reduction tank opening is connected with a water jacket, and the inner surface is connected with a sealing sleeve.

[0007] The loading assembly includes a feed pipe, a negative pressure fan and a dust collector, wherein the feed pipe passes through the sealing sleeve and can extend into or out of the reduction tank, wherein an end of the feed pipe away from the reduction tank is upwardly provided with a feed port connected to a hopper, the air inlet of the negative pressure fan is connected to the sealing sleeve, the air outlet of the negative pressure fan is connected to the dust collector, and the dust collector is connected to the feed port.

[0008] On the basis of the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, the feed port is respectively connected to the dust collector and the hopper through flexible connections.

[0010] Furthermore, the flexible connection is any one of a rubber pipe, a plastic pipe or a canvas pipe.

[0011] Furthermore, the sealing sleeve and the feed pipe are both open structures at one end of the reduction tank.

[0012] Furthermore, the discharge port of the hopper is an adjustable structure, having a plug plate that can be opened or closed.

[0013] Furthermore, the sealing sleeve is located at one end outside the reduction tank, and a connecting port is opened on its side wall, and the connecting port is connected to the air inlet of the negative pressure fan.

[0014] Furthermore, the length of the feed pipe is greater than the length of the reduction tank.

[0015] The beneficial effects of the utility model are as follows: the utility model provides a negative pressure charging mechanism for crude magnesium smelting, which has the following advantages:

[0016] Through the negative pressure fan inlet, a sealed sleeve is inserted into the reduction tank, and the gas in the tank is extracted to create negative pressure for suction. According to the material accumulation in the reduction tank, the central tube that slowly moves outward is fed, thereby replacing the traditional manual pushing of materials. The advantage is that after improvement, the suction can be carried out by negative pressure circulation, and the human operation is basically automated, which greatly reduces the labor intensity, can control the speed, shorten the operation time, and suck away the dust on the ball material through negative pressure, and then filter it for reuse and then press the ball, which improves the quality of the ball material and increases the output;

[0017] The discharge port of the hopper is controlled by a plug plate, which can control the feeding speed and effectively cooperate with the negative pressure fan to load the reduction tank.

[0018] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 A schematic diagram of the structure of a negative pressure charging mechanism for crude magnesium smelting provided by the utility model in use state;

[0021] Figure 2 The utility model provides a schematic diagram of the overall structure of a negative pressure charging mechanism for crude magnesium smelting;

[0022] Figure 3 It is a partial cross-sectional view of a negative pressure charging mechanism used for crude magnesium smelting in the utility model.

[0023] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0024] 100, reduction tank; 110, water jacket; 120, sealing sleeve; 121, connection port; 200, charging assembly; 210, feed pipe; 211, feed port; 220, negative pressure fan; 230, dust collector; 300, hopper; 310, plug board. DETAILED DESCRIPTION

[0025] The following is combined with Figure 1-3 The principles and features of the present invention are described, and the examples given are only used to explain the present invention, and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0026] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0028] like Figure 1-3 As shown, the utility model provides a negative pressure charging mechanism for crude magnesium smelting, including a reduction tank 100, a charging assembly 200 and a hopper 300. The prior art is that a plurality of reduction tanks 100 are horizontally distributed in a reduction furnace, and specifically, a water jacket 110 is connected to the outer mouth of the reduction tank 100, and a sealing sleeve 120 is inserted inside. The sealing sleeve 120 can better avoid the gap between the feed pipe 210 and the reduction tank 100, forming air loss, and cannot form negative pressure in the reduction tank 100. The material can be made of high temperature resistant cotton.

[0029] The charging assembly 200 includes a feed pipe 210, a negative pressure fan 220 and a dust collector 230. The feed pipe 210 passes through the sealing sleeve 120 and can extend into or out of the reduction tank 100. The sealing sleeve 120 and the feed pipe 210 are both open structures at one end of the reduction tank 100, so as to better form a negative pressure air flow situation. In addition, the inner diameter of the feed pipe 210 is 0.2-0.35 times the inner diameter of the reduction tank 100, so that the air flow rate of the feed pipe 210 can be much greater than the air flow rate in the reduction tank 100, and the ball material can enter the reduction tank 100 with the high-flow air. Among them, the end of the feed pipe 210 away from the reduction tank 100 is upwardly provided with a feed port 211 connected to the hopper 300, the air inlet of the negative pressure fan 220 is connected to the sealing sleeve 120, and the air outlet of the negative pressure fan 220 is connected to the dust collector 230, and the negative pressure fan 220 adopts variable frequency speed regulation to accurately control the air flow rate and the charging speed. The dust collector 230 is connected to the feed port 211, and the dust collector 230 can not only filter the dust sucked out of the reduction tank 100 by the negative pressure fan 220 to avoid dust pollution, but also indirectly transfer the hot air in the reduction tank 100 to the material entering the feed pipe 210, so as to preheat the material entering the reduction tank 100, so that the material can be better smelted in the reduction furnace, and this process can form a cycle to reduce heat loss.

[0030] On the basis of the above technical solution, it should be noted that the present invention is specifically configured as follows.

[0031] like Figure 1-Figure 3 As shown, the feed port 211 is respectively connected to the dust collector 230 and the hopper 300 through a flexible connection. Specifically, the flexible connection is any one of a rubber pipe, a plastic pipe or a canvas pipe. Since the feed pipe 210 needs to move outward according to the local loading situation in the reduction tank 100, after the feed pipe 210 moves, its feed port 211 cannot continue to be aligned and connected with the dust collector 230 and the hopper 300, so it needs to be set to a connecting pipe that can be extended to a certain extent to be connected, so as to be better applied to the use status.

[0032] The discharge port of the hopper 300 is an adjustable structure with an openable or closed plug plate 310. The plug plate 310 can be used to control the size of the discharge port, thereby controlling the speed and amount of material discharge. At the same time, a feeder can be used under the hopper 300 to replace the plug plate 310 for precise feeding.

[0033] The sealing sleeve 120 is located at one end outside the reduction tank 100, and a connecting port 121 is opened on its side wall. The connecting port 121 is connected to the air inlet of the negative pressure fan 220, so that its structural design is reasonable, and it is faster and more efficient when connecting and disassembling.

[0034] The length of the feed pipe 210 is greater than the length of the reduction tank 100, so that the feed pipe 210 extends into the reduction tank 100 closest to the inner bottom wall, and one end can also be outside, so as to realize the operation of the hopper 300 feeding into the feed port 211. At the same time, the inner diameter of the feed pipe 210 is 0.2-0.35 times the inner diameter of the reduction tank 100, so as to ensure that the air flow rate of the feed pipe 210 is much greater than the air flow rate in the reduction tank 100, so as to ensure that the ball material enters the reduction tank 100 with the high-flow air.

[0035] The specific working principle and use method of the utility model are as follows:

[0036] The utility model provides a negative pressure charging mechanism for crude magnesium smelting. When in use, the inlet of the negative pressure fan 220 is connected to the sealing sleeve, and then the negative pressure fan 220 is started. Since the space in the reduction tank 100 is large and the diameter of the feed pipe 210 is small, the negative pressure is formed in the reduction tank 100 under the suction force of the negative pressure fan 220, that is, the raw materials dropped from the hopper 300 into the feed pipe 210 can be directly loaded into the reduction tank 100, and the outlet of the negative pressure fan 220 is connected to the dust collector 230, and the outlet of the dust collector 230 is connected to the hopper, so that the reduction tank 100 can be filled with negative pressure. The hot air in 100 forms a cycle to reduce heat loss, so as to ensure that the air flow rate of the feed pipe 210 is much greater than the air flow rate in the reduction tank 100, and ensure that the ball material enters the reduction tank 100 with the high-flow air. When the ball material reaches the outlet of the feed pipe 210 in the reduction tank 100, the flow rate is reduced due to the large diameter of the tank. The ball material falls and accumulates in the reduction tank 100 as the flow rate changes, and then the feed pipe 210 is moved outward, and the process is repeated continuously to fill the entire reduction tank 100, and then the ball material is moved to the next reduction tank 100 to continue the loading operation.

[0037] The above description is only a preferred embodiment of the utility model and does not impose any form of limitation on the utility model. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A negative pressure charging mechanism for crude magnesium smelting, characterized in that: include A reduction tank (100), wherein a water jacket (110) is connected to the outer surface of the reduction tank (100) and a sealing sleeve (120) is inserted into the inner surface of the reduction tank (100); A charging assembly (200), the charging assembly (200) comprising a feed pipe (210), a negative pressure fan (220) and a dust collector (230), the feed pipe (210) passing through the sealing sleeve (120) and being able to extend into or out of the reduction tank (100), wherein an end of the feed pipe (210) away from the reduction tank (100) is upwardly provided with a feed port (211) connected to a hopper (300), an air inlet of the negative pressure fan (220) is connected to the sealing sleeve (120), an air outlet of the negative pressure fan (220) is connected to the dust collector (230), and the dust collector (230) is connected to the feed port (211).

2. A negative pressure charging mechanism for crude magnesium smelting according to claim 1, characterized in that: The feed port (211) is respectively connected to the dust collector (230) and the hopper (300) through flexible connections.

3. A negative pressure charging mechanism for crude magnesium smelting according to claim 2, characterized in that: The flexible connection is any one of a rubber pipe, a plastic pipe or a canvas pipe.

4. A negative pressure charging mechanism for crude magnesium smelting according to claim 3, characterized in that: The sealing sleeve (120) and the feed pipe (210) are both open structures at one end of the reduction tank (100).

5. A negative pressure charging mechanism for crude magnesium smelting according to claim 2, characterized in that: The material discharge port of the hopper (300) is an adjustable structure, and has a plug plate (310) that can be opened or closed.

6. A negative pressure charging mechanism for crude magnesium smelting according to claim 4, characterized in that: The sealing sleeve (120) is located at one end outside the reduction tank (100), and a connecting port (121) is provided on a side wall thereof, wherein the connecting port (121) is connected to an air inlet of the negative pressure fan (220).

7. A negative pressure charging mechanism for crude magnesium smelting according to claim 1, characterized in that: The length of the feed pipe (210) is greater than the length of the reduction tank (100).

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