Feeding device of melting purification furnace

Abstract

The utility model discloses a feeding device of a melting purification furnace. The feeding device comprises a stock bin, a pneumatic arch breaking flow aid, a pneumatic gate valve, a rotary feeder, a continuous weighing device, a first air locker, a flow equalizer, a second air locker, a spiral feeder, a chute and a melting purification furnace feeding port, the bottom of the stock bin is fixedly connected with a pneumatic arch breaking flow aid; the pneumatic gate valve is arranged at an outlet of the stock bin; the rotary feeder is arranged at a discharge port of the stock bin; a continuous weighing device is arranged below the rotary feeder; a current equalizer is arranged below the continuous weighing device; a first air locker is arranged above the flow equalizer, and a second air locker is arranged below the flow equalizer; the spiral feeder is arranged below the flow equalizer and the second air locker; the chute is arranged at the discharge end of the screw feeder; and the discharging end of the chute is connected with a charging hole of the melting purification furnace. The feeding effect of the feeding device is improved, and material blocking is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of industrial equipment, and particularly relates to a feeding device for a melting and purification furnace. Background Art

[0002] Magnesium chloride has always been an important raw material in industry and plays a crucial role in various industrial fields. In the metallurgical industry, magnesium chloride is an important raw material for the production of metallic magnesium, which is obtained by cooling the carnallite solution, removing potassium chloride, and then concentrating, filtering, cooling, and crystallizing. As an important part of the entire metallic magnesium production field, the feeding device of the magnesium chloride melting and purification furnace also plays an important role, and the quality of the feeding device directly affects the efficiency of the entire metallic magnesium production process.

[0003] In the related art, there is no arch-breaking and flow-aiding device in the feed bin of the feeding device, and material arches often form at the bottom of the feed bin, resulting in frequent material jamming. Secondly, there is a pressure difference between the upper and lower parts of the granular material, and there is no air-lock function device on the feed pipe, making the material flow in the feeding device not smooth. The feeding devices of existing melting and purification furnaces generally use rotary feed valves to control the feeding amount of granular materials and do not have the dynamic continuous metering function of granular materials.

[0004] Therefore, how to improve the feeding effect of the feeding device of the melting and purification furnace and avoid material jamming is a key issue concerned by those skilled in the art. Summary of the Utility Model

[0005] To solve the problems existing in the prior art, the utility model provides a feeding device for a melting and purification furnace, which improves the feeding effect of the feeding device of the melting and purification furnace and avoids the problem of material jamming.

[0006] To achieve the purpose of the utility model, the following technical solutions are adopted: A feeding device for a melting and purification furnace, comprising:

[0007] A feed bin, a pneumatic arch-breaking and flow-aiding device, a pneumatic gate valve, a rotary feeder, a continuous weigher, a first air-lock, a flow equalizer, a second air-lock, a screw feeder, a chute, and a feeding port of the melting and purification furnace;

[0008] The bottom of the feed bin is fixedly connected to the pneumatic arch-breaking and flow-aiding device; the pneumatic gate valve is arranged at the outlet of the feed bin; the rotary feeder is arranged at the discharge port of the feed bin; the continuous weigher is arranged below the rotary feeder; the flow equalizer is arranged below the continuous weigher; the first air-lock is arranged above the flow equalizer, and the second air-lock is arranged below the flow equalizer; the screw feeder is arranged below the flow equalizer and the second air-lock; the chute is arranged at the discharge end of the screw feeder; the discharge end of the chute is connected to the feeding port of the melting and purification furnace.

[0009] Optionally, the silo is a silo with adjustable discharging.

[0010] Optionally, the surface of the chute is coated with a wear-resistant coating.

[0011] Optionally, a deflector is arranged in the silo along the discharging direction.

[0012] Optionally, both the first air lock and the second air lock are multi-stage air locks.

[0013] Compared with the prior art, the present utility model has the following beneficial effects:

[0014] The air locking functions of the rotary feeder and the air lock arranged in the feeding device overcome the pressure difference between the upper and lower parts of the material pipe during the material conveying process, improve the fluidity of the granular material, and can realize the continuous and uniform discharging of the granular material;

[0015] The flow equalizer can make the granular material evenly fall into the screw feeder, thereby further ensuring the metering accuracy of the screw feeder;

[0016] The granular material enters the material pipe through the pneumatic slide gate valve. The pneumatic arch-breaking and flow-aiding device arranged at the bottom of the silo realizes arch breaking through continuous vibration, thereby avoiding the occurrence of material stacking and jamming;

[0017] The continuous weigher arranged in the feeding device can realize the continuous real-time metering of the granular material. Description of the Drawings

[0018] Figure 1 It is a schematic structural diagram of a feeding device of a melting and purification furnace provided by an embodiment of the present application;

[0019] In the figure: silo - 1, pneumatic arch-breaking and flow-aiding device - 2, pneumatic slide gate valve - 3, rotary feeder - 4, continuous weigher - 5, first air lock - 6, flow equalizer - 7, second air lock - 8, screw feeder - 9, chute - 10, melting and purification furnace feeding port - 11. Detailed Embodiments

[0020] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model:

[0021] Please refer to Figure 1 , Figure 1 It is a schematic structural diagram of a feeding device of a melting and purification furnace provided by an embodiment of the present application.

[0022] In this embodiment, the device may include:

[0023] Bunker 1, pneumatic arch-breaking air flow assistor 2, pneumatic slide gate valve 3, rotary feeder 4, continuous weigher 5, first air lock 6, flow equalizer 7, second air lock 8, screw feeder 9, chute 10, charging opening of melting and purification furnace 11;

[0024] The bottom of the bunker 1 is fixedly connected to the pneumatic arch-breaking air flow assistor 2; the pneumatic slide gate valve 3 is arranged at the outlet of the bunker 1; the rotary feeder 4 is arranged at the discharge port of the bunker 1; the continuous weigher 5 is arranged below the rotary feeder 4; the flow equalizer 7 is arranged below the continuous weigher 5; the first air lock 6 is arranged above the flow equalizer 7, and the second air lock 8 is arranged below the flow equalizer 7; the screw feeder 9 is arranged below the flow equalizer 7 and the second air lock 8; the chute 10 is arranged at the discharge end of the screw feeder 9; the discharge end of the chute 10 is connected to the charging opening 11 of the melting and purification furnace.

[0025] It can be seen that the feeding device stores materials through the bunker, the pneumatic arch-breaking air flow assistor prevents the formation of material arches and jams at the bottom of the bunker, the pneumatic slide gate valve controls the opening and closing of the material outlet, the rotary feeder realizes continuous feeding, the continuous weigher continuously weighs the materials, the first air lock and the second air lock reduce the influence of the upper and lower pressure differences of the materials on the material flow, the flow equalizer makes the materials evenly fall into the screw feeder, the screw feeder conveys the materials, and the chute guides the materials into the charging opening of the melting and purification furnace. The feeding effect of the feeding device is improved, the occurrence of jamming is avoided, the continuous and uniform feeding of materials is realized, and the dynamic continuous metering function of granular materials is possessed.

[0026] Optionally, the bunker 1 is a bunker with adjustable discharge.

[0027] It can be seen that the discharge amount of the bunker can be adjusted according to needs, which can better control the output amount of materials and meet different production requirements.

[0028] Optionally, the surface of the chute 10 is coated with a wear-resistant coating.

[0029] It can be seen that the wear-resistant coating on the surface of the chute can improve the wear resistance of the chute, extend the service life of the chute, and reduce the equipment maintenance cost.

[0030] Optionally, a deflector is arranged in the bunker 1 in the material discharging direction.

[0031] It can be seen that the deflector helps to guide the material discharging direction, makes the materials flow more smoothly, further improves the flow performance of the materials in the bunker, and reduces material accumulation and blockage.

[0032] Optionally, both the first air lock 6 and the second air lock 8 are multi-stage air locks.

[0033] It can be seen that by adopting a multi-stage air lock, the air locking effect is enhanced, the pressure difference existing between the upper and lower parts of the granular material is better isolated, and the material transportation is ensured to be smoother.

[0034] Furthermore, please refer to Figure 1 . The feeding device of the melting and purification furnace includes: a silo 1, a pneumatic gate valve 3, a rotary feeder 4, a continuous weigher 5, an air lock 6, a flow equalizer 7, an air lock 8, a screw feeder 9 and a chute 10; the pneumatic arch-breaking and assisting flow device 2 is arranged at the bottom of the silo 1 and directly vibrates the granular material inside the silo 1 through pulsed compressed air to achieve the arch-breaking effect, aiming to make the granular material in the silo 1 flow smoothly; the pneumatic gate valve 3 is arranged at the discharge port of the silo 1, and its main purpose is that when the feeding system fails for maintenance, the pneumatic gate valve 3 can close the passage of the granular material at the lower part of the silo 1; during normal operation, the pneumatic gate valve 3 is in the open state, and the granular material in the silo 1 flows into the rotary feeder 4 by gravity through the connecting pipe. The rotary feeder 4 can isolate the pressure difference existing between the upper and lower parts of the granular material and realize the continuous feeding of the granular material. While the rotary feeder 4 feeds the continuous weigher 5, the continuous real-time measurement of the granular material can be realized, and the amount of material flowing into the melting and purification furnace can be accurately controlled; a flow equalizer 7 is arranged below the continuous weigher 5, and the flow equalizer 7 can make the granular material evenly fall into the screw feeder 9, so as to further ensure the metering accuracy of the screw feeder 9. Air locks 6 and 8 are respectively arranged above and below the flow equalizer 7, which can isolate the pressure difference existing between the upper and lower parts of the granular material and realize the continuous feeding of the granular material; the screw feeder 9 is arranged below the air lock 8 and feeds by means of screw conveying. It can not only achieve stable flow transportation but also further realize the metering feeding of the granular material. One end of the chute 10 is connected to the discharge port of the screw feeder 9, and the other end is connected to the feeding port 11 of the melting and purification furnace. The granular material flows into the feeding port 11 of the melting and purification furnace along the chute 10 by gravity self-flow.

[0035] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its improved concept, makes equivalent substitutions or changes, and all should be covered by the protection scope of the present invention.

Claims

1. A feeding device for a melting and purification furnace, characterized in that: include: A silo (1), a pneumatic arch-breaking flow aid (2), a pneumatic gate valve (3), a rotary feeder (4), a continuous weigher (5), a first air lock (6), a flow equalizer (7), a second air lock (8), a screw feeder (9), a chute (10), and a melting and purification furnace charging port (11); The bottom of the silo (1) is fixedly connected to the pneumatic arch-breaking flow aid (2); the pneumatic gate valve (3) is arranged at the outlet of the silo (1); the rotary feeder (4) is arranged at the discharge port of the silo (1); the continuous weigher (5) is arranged below the rotary feeder (4); the flow equalizer (7) is arranged below the continuous weigher (5); the first air lock (6) is arranged above the flow equalizer (7), and the second air lock (8) is arranged below the flow equalizer (7); the screw feeder (9) is arranged below the flow equalizer (7) and the second air lock (8); the chute (10) is arranged at the discharge end of the screw feeder (9); the discharge end of the chute (10) is connected to the feeding port (11) of the melting purification furnace.

2. The feeding device according to claim 1, characterized in that: The silo (1) is a silo with adjustable material discharge.

3. The feeding device according to claim 1, characterized in that: The surface of the chute (10) is coated with a wear-resistant coating.

4. The feeding device according to claim 1, characterized in that: A guide plate is provided in the material discharge direction inside the material bin (1).

5. The feeding device according to claim 1, characterized in that: The first air lock (6) and the second air lock (8) are both multi-stage air locks.

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