Air seal type water jacket conical hopper capable of preventing material spraying

Abstract

The utility model relates to the technical field of metallurgical equipment application, and discloses an air seal type water jacket conical hopper capable of preventing material spraying, which comprises a feed port hopper, a feed port water jacket is fixedly arranged at the lower end of the feed port hopper, and an air seal device I is fixedly arranged at the upper end of the left end of the feed port hopper. The first air sealing device is fixedly communicated with the feeding port hopper, the second air sealing device is fixedly installed at the lower end of the feeding port water jacket, an air sealing channel is arranged on the lower side of the feeding port hopper, and a water conveying pipe is fixedly installed at the lower end of the feeding port water jacket. According to the air seal type water jacket conical hopper capable of preventing material spraying, the situation that smoke in a furnace overflows or melts are splashed due to changes of pressure in the furnace can be avoided, the flow of a gas medium entering the furnace is increased or reduced by adjusting the pressure of an air curtain, production of a follow-up process is stabilized, and production efficiency is improved. The overflow of sulfur dioxide flue gas and mineral aggregate particles at the feeding hole can be effectively reduced, and the field environment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical equipment application, in particular to an air-sealed water-jacketed conical hopper for preventing material spraying. Background Art

[0002] During the production process, the ore put into the furnace will undergo thermal decomposition reaction when heated and undergo oxidation reaction when in contact with oxygen.

[0003] Due to the uneven particle size of solid mineral materials and the non-continuity of gas products gathering into bubbles and flushing out of the slag layer, the negative pressure in the furnace will fluctuate, and flue gas will be intermittently ejected from the charging port. The mineral powder particles in the flue gas will cause a poor on-site environment, and the personnel at the charging port will be at risk of being scalded by the splashed objects when cleaning the coke splashed from the upper part of the water jacket. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] The utility model aims to provide an air-sealed water-jacketed conical hopper for preventing material spraying, so as to solve the problem that mineral powder particles in the flue gas may spray out through the feeding port when the prior art is used.

[0006] (II) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an air-sealed water-jacketed conical hopper for preventing material spraying, comprising a feeding port hopper, a feeding port water jacket is fixedly installed at the lower end of the feeding port hopper, an air-sealing device 1 is fixedly installed at the upper end of the left end of the feeding port hopper, the air-sealing device 1 and the feeding port hopper are fixedly connected, and an air-sealing device 2 is fixedly installed at the lower end of the feeding port water jacket.

[0008] Preferably, an air sealing channel is provided on the lower side of the feeding port hopper, a water pipe is fixedly installed on the lower end of the feeding port water jacket, and an air sealing device 1 is provided on the wall in the middle position of the feeding port hopper. The air sealing device 1 is a carbon steel air sealing tube, which is externally connected to a stainless steel metal hose and is not affected by the rotation of the furnace body. When compressed air is turned on during production, a downward "air curtain" appears along the conical hopper according to the angle of the air sealing tube, which can not only prevent the flue gas from overflowing and play a sealing role, but also add downward impulse to the material particles, ensuring that the flue gas in the furnace will not overflow or the melt will splash due to changes in the pressure in the furnace, and by adjusting the "air curtain" pressure, the flow rate of the gas medium entering the furnace can be increased or decreased, and the production of subsequent processes can be stabilized, which can effectively reduce the overflow of sulfur dioxide flue gas and mineral particles at the feeding port and improve the on-site environment.

[0009] Preferably, the upper end of the water delivery pipe is fixedly connected to the feeding port hopper, and a water jacket body is provided on the outer side of the water delivery pipe.

[0010] Preferably, an opening is fixedly provided at the upper end of the water jacket body, and a water inlet pipe is fixedly installed at the left end of the upper end of the water jacket body. An air sealing device 2 is added downward at the upper edge of the feeding port water jacket. The air sealing device 2 is an annular carbon steel air sealing tube, which is wrapped around the "neck" of the upper edge of the feeding port water jacket. A plurality of channels for jetting air to the inside of the feeding port water jacket are evenly distributed on the tube, and the jetting direction is inclined downward. Compressed air can be turned on during production. The compressed air forms a downward "air curtain" along the conical hopper according to the angle of the air sealing tube, which can not only prevent smoke from overflowing and play a sealing role, but also add downward impulse to the material particles, thereby avoiding scalding of personnel caused by splashing of high-temperature molten material in the furnace.

[0011] Preferably, one end of the water inlet pipe extends to the interior of the water jacket body, and a water outlet pipe is fixedly mounted on the right end of the upper end of the water jacket body.

[0012] Preferably, one end of the water outlet pipe extends to the interior of the water jacket body, and the "gas sealing" medium entering the gas sealing channel can be replaced with "nitrogen" or "oxygen" or "compressed air" and other media according to the adjustment of the subsequent process, thereby reducing the occurrence rate of sulfur trioxide and the smoke rate in the subsequent process.

[0013] Preferably, a protective outer plate is provided on the outer side of the feeding port hopper, and a fixing piece is fixedly installed on the inner end of the protective outer plate, and the fixing piece is used to fix the position of the protective outer plate.

[0014] Preferably, the other end of the fixing member is fixedly connected to the charging port hopper, and the staff can feed all the mineral materials into the charging port hopper.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The air-sealed water-jacketed conical hopper to prevent material spraying can ensure that the flue gas in the furnace will not overflow or the melt will splash due to changes in the pressure in the furnace. In addition, by adjusting the "gas curtain" pressure, the flow rate of the gas medium entering the furnace is increased or decreased, and the production of subsequent processes is stabilized. It can effectively reduce the overflow of sulfur dioxide flue gas and mineral particles at the feed port and improve the on-site environment;

[0017] 2. The "gas seal" medium of the water-jacketed conical hopper that prevents material spraying can be automatically replaced with "nitrogen" or "oxygen" or "compressed air" according to the adjustment of the subsequent process, thereby reducing the occurrence rate of sulfur trioxide and the smoke rate in the subsequent process;

[0018] 3. The air-sealed water-jacketed conical hopper to prevent material spraying can open compressed air during production. The compressed air will form a downward "air curtain" along the conical hopper according to the angle of the air-sealing pipe, which can not only prevent the smoke from overflowing and play a sealing role, but also add a downward impulse to the material particles, avoiding the high-temperature molten material in the furnace from splashing and causing burns to personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0021] Figure 3 It is a partially enlarged three-dimensional structural schematic diagram of the utility model;

[0022] Figure 4 It is a partially enlarged cross-sectional structural schematic diagram of the utility model;

[0023] Figure 5 This is a schematic diagram of the enlarged three-dimensional structure of the local details of the utility model;

[0024] Figure 6 It is a schematic diagram of the enlarged cross-sectional structure of local details of the utility model.

[0025] In the figure: 1. Feeding port hopper; 2. Feeding port water jacket; 3. Air sealing device 1; 4. Air sealing device 2; 5. Air sealing channel; 6. Water pipe; 7. Water jacket cylinder; 8. Opening; 9. Water inlet pipe; 10. Water outlet pipe; 11. Protective outer plate; 12. Fixing parts. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Embodiment 1:

[0028] See also Figure 1-Figure 6 The utility model provides a technical solution: an air-sealed water-jacketed conical hopper for preventing material spraying, comprising a feeding port hopper 1, a feeding port water jacket 2 is fixedly installed at the lower end of the feeding port hopper 1, an air-sealing device 3 is fixedly installed at the upper end of the left end of the feeding port hopper 1, the air-sealing device 1 3 and the feeding port hopper 1 are fixedly connected, an air-sealing device 2 4 is fixedly installed at the lower end of the feeding port water jacket 2, an air-sealing channel 5 is arranged on the lower side of the feeding port hopper 1, and a water pipe 6 is fixedly installed at the lower end of the feeding port water jacket 2.

[0029] The upper end of the water pipe 6 is fixedly connected to the charging port hopper 1, and a water jacket body 7 is provided on the outside of the water pipe 6. An opening 8 is fixedly provided on the upper end of the water jacket body 7. A water inlet pipe 9 is fixedly installed on the left end of the upper end of the water jacket body 7. One end of the water inlet pipe 9 extends to the interior of the water jacket body 7. A water outlet pipe 10 is fixedly installed on the right end of the upper end of the water jacket body 7. All mineral materials enter from this charging port hopper 1. During the process of mineral materials entering during production, they are often ejected by short-term positive pressure formed by bubbles randomly rushing out from under the slag layer in the furnace, causing smoke and dust to overflow. Therefore, an air sealing device 3 is provided on the wall in the middle position of the charging port hopper 1. The air sealing device 3 is a carbon steel air sealing pipe, which is externally connected to a stainless steel metal hose and is not affected by the rotation of the furnace body.

[0030] One end of the water outlet pipe 10 extends to the interior of the water jacket body 7, and a protective outer plate 11 is provided on the outer side of the feeding port hopper 1. A fixing part 12 is fixedly installed on the inner end of the protective outer plate 11, and the other end of the fixing part 12 is fixedly connected to the feeding port hopper 1. When the compressed air is turned on during production, a downward "air curtain" appears along the conical hopper according to the angle of the air sealing pipe, which can not only prevent the smoke from overflowing and play a sealing role, but also add a downward impact force to the material particles.

[0031] Working principle: All the ore materials enter from the charging port hopper 1. During the process of ore materials entering the furnace, they are often ejected by the short-term positive pressure formed by the bubbles randomly rushing out from under the slag layer in the furnace, causing the smoke and dust to overflow. Therefore, an air seal device 3 is set on the wall in the middle position of the charging port hopper 1. The air seal device 3 is a carbon steel air seal pipe, which is externally connected to a stainless steel metal hose and is not affected by the rotation of the furnace body. During production, compressed air is turned on. The compressed air forms a downward "air curtain" along the conical hopper according to the angle of the air seal pipe, which can not only prevent the smoke from overflowing and play a sealing role, but also add a downward impact to the material particles.

[0032] Embodiment 2:

[0033] See also Figure 1-Figure 6 The utility model provides a technical solution: an air-sealed water-jacketed conical hopper for preventing material spraying, comprising a feeding port hopper 1, a feeding port water jacket 2 is fixedly installed at the lower end of the feeding port hopper 1, an air-sealing device 3 is fixedly installed at the upper end of the left end of the feeding port hopper 1, the air-sealing device 1 3 and the feeding port hopper 1 are fixedly connected, an air-sealing device 2 4 is fixedly installed at the lower end of the feeding port water jacket 2, an air-sealing channel 5 is arranged on the lower side of the feeding port hopper 1, and a water pipe 6 is fixedly installed at the lower end of the feeding port water jacket 2.

[0034] The upper end of the water pipe 6 is fixedly connected to the feeding port hopper 1, and a water jacket body 7 is provided on the outside of the water pipe 6. An opening 8 is fixedly provided on the upper end of the water jacket body 7. A water inlet pipe 9 is fixedly installed on the left end of the upper end of the water jacket body 7. One end of the water inlet pipe 9 extends to the interior of the water jacket body 7. A water outlet pipe 10 is fixedly installed on the right end of the upper end of the water jacket body 7. An air sealing device 2 4 is added downward on the upper edge of the feeding port water jacket 2. The air sealing device 2 4 is an annular carbon steel air sealing pipe, which is wrapped around the "neck" of the upper edge of the feeding port water jacket 2. A plurality of channels for jetting air to the inside of the feeding port water jacket 2 are evenly distributed on the pipe, and the jetting direction is inclined downward.

[0035] One end of the water outlet pipe 10 extends to the interior of the water jacket body 7, and a protective outer plate 11 is provided on the outer side of the feeding port hopper 1. A fixing part 12 is fixedly installed on the inner end of the protective outer plate 11, and the other end of the fixing part 12 is fixedly connected to the feeding port hopper 1. During production, the compressed air is turned on, and a stable and uniform air pressure enters the inner edge of the feeding port water jacket 2 through the air-sealed annular tube. Because of the inclination angle, a downward "air curtain" will be formed.

[0036] Working principle: an air sealing device 24 is added downward on the upper edge of the feeding port water jacket 2. The air sealing device 24 is an annular carbon steel air sealing tube, which is wrapped around the "neck" of the upper edge of the feeding port water jacket 2. A plurality of channels for jetting to the inside of the feeding port water jacket 2 are evenly distributed on the tube, and the jetting direction is inclined downward. During production, the compressed air is turned on, and a stable and uniform air pressure enters the inner edge of the feeding port water jacket 2 through the air sealing annular tube. Because of the inclination angle, a downward "air curtain" will be formed.

[0037] Finally, it should be noted that the above content is only used to illustrate the technical solution of the utility model, rather than to limit the protection scope of the utility model. Simple modifications or equivalent substitutions of the technical solution of the utility model by ordinary technicians in this field do not deviate from the essence and scope of the technical solution of the utility model.

Claims

1. An air-sealed water-jacketed conical hopper for preventing material spraying, comprising a feed port hopper (1), characterized in that: A feeding port water jacket (2) is fixedly installed at the lower end of the feeding port hopper (1), an air sealing device 1 (3) is fixedly installed at the upper end of the left end of the feeding port hopper (1), the air sealing device 1 (3) and the feeding port hopper (1) are fixedly connected, and an air sealing device 2 (4) is fixedly installed at the lower end of the feeding port water jacket (2).

2. The air-sealed water-jacketed conical hopper for preventing material spraying according to claim 1, characterized in that: An air sealing channel (5) is provided at the lower side of the feeding port hopper (1), and a water pipe (6) is fixedly installed at the lower end of the feeding port water jacket (2).

3. The air-sealed water-jacketed conical hopper for preventing material spraying according to claim 2, characterized in that: The upper end of the water delivery pipe (6) is fixedly connected to the feed port hopper (1), and a water jacket body (7) is provided on the outside of the water delivery pipe (6).

4. The air-sealed water-jacketed conical hopper for preventing material spraying according to claim 3, characterized in that: An opening (8) is fixedly provided at the upper end of the water jacket body (7), and a water inlet pipe (9) is fixedly installed at the left end of the upper end of the water jacket body (7).

5. The air-sealed water-jacketed conical hopper for preventing material spraying according to claim 4, characterized in that: One end of the water inlet pipe (9) extends to the interior of the water jacket body (7), and a water outlet pipe (10) is fixedly mounted on the right end of the upper end of the water jacket body (7).

6. The air-sealed water-jacketed conical hopper for preventing material spraying according to claim 5, characterized in that: One end of the water outlet pipe (10) extends to the interior of the water jacket body (7).

7. The air-sealed water-jacketed conical hopper for preventing material spraying according to claim 6, characterized in that: A protective outer plate (11) is provided on the outer side of the feed port hopper (1), and a fixing member (12) is fixedly mounted on the inner end of the protective outer plate (11).

8. The air-sealed water-jacketed conical hopper for preventing material spraying according to claim 7, characterized in that: The other end of the fixing member (12) is fixedly connected to the feeding port hopper (1).

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