Integrated smoke dust recovery device for slagging front bed of ore-smelting electric furnace

Abstract

The utility model relates to the field of ore-smelting electric furnaces, and discloses an ore-smelting electric furnace slagging front bed integrated smoke dust recovery device which comprises a feeding hopper, a rectangular frame is arranged at the top of the feeding hopper, a connecting pipe is arranged at the top of the rectangular frame, and a raw material recovery pipeline is arranged on the connecting pipe. A cooling structure is arranged on the surface of the raw material recycling pipeline and comprises a liquid storage tank, a refrigerator is arranged on the surface of the liquid storage tank, a circulating pump is fixedly connected to the top of the liquid storage tank, a cooling pipe is fixedly connected to the output end of the circulating pump, and a mounting plate is fixedly connected to the surface of the raw material recycling pipeline. A motor is fixedly connected to the surface of the mounting plate and fixedly connected with a driving wheel through a rotating rod. According to the smoke dust recycling device, the cooling structure is arranged, so that smoke dust can be cooled in the process of recycling the smoke dust, and meanwhile, the cooling area is enlarged to ensure the cooling effect on the smoke dust.

Description

Technical Field

[0001] The utility model relates to the field of ore-fired electric furnaces, in particular to an integrated smoke and dust recovery device for a slag discharge front bed of an ore-fired electric furnace. Background Art

[0002] The ore-fired furnace is also called an electric arc furnace or an electric resistance furnace. It is mainly used for reducing and smelting ores, carbonaceous reducing agents, solvents and other raw materials. It mainly produces ferrosilicon, ferromanganese, ferrochrome, ferrotungsten, silicon-manganese alloy and other ferroalloys. It is an important industrial raw material in the metallurgical industry and chemical raw materials such as calcium carbide.

[0003] After searching, Chinese patent announcement number: CN220250673U discloses a smoke recovery device for a tin smelting ore thermal electric furnace with a speed-controlled spiral feeding function. Through the coordination of a rectangular frame, a connecting pipe, a raw material recovery pipeline, a feeding assembly and a feed hopper, under the action of wind pumping, the tin smoke can be efficiently recovered and granulated for reuse, thereby improving the quality of the working environment while efficiently recovering the smoke.

[0004] In the above technical scheme, smoke dust can be recovered through the cooperation of the connecting pipe and the raw material recovery pipeline. The smoke dust lacks cooling function during recovery. The high temperature during smoke dust recovery will reduce the smoke dust recovery efficiency. At the same time, smoke dust recovery with too high a temperature will reduce the stability during recovery, which is not conducive to the safety of smoke dust recovery. Therefore, a smoke dust recovery device integrated with the front bed of the slag discharge of a mineral thermal electric furnace is proposed to solve the above problems. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an integrated smoke dust recovery device for the front bed of a slag-discharging electric furnace, aiming to improve the problem in the prior art that the integrated smoke dust recovery device for the front bed of a slag-discharging electric furnace lacks a cooling function during smoke dust recovery, resulting in reduced recovery efficiency.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an integrated smoke recovery device for a slag discharge front bed of a mineral thermal electric furnace, comprising a feed hopper, a rectangular frame is arranged on the top of the feed hopper, a connecting pipe is arranged on the top of the rectangular frame, a raw material recovery pipeline is arranged on the connecting pipe, a cooling structure is arranged on the surface of the raw material recovery pipeline, and the cooling structure comprises:

[0007] A liquid storage tank, a refrigerator is arranged on the surface of the liquid storage tank, a circulating pump is fixedly connected to the top of the liquid storage tank, a cooling pipe is fixedly connected to the output end of the circulating pump, a mounting plate is fixedly connected to the surface of the raw material recovery pipeline, a motor is fixedly connected to the surface of the mounting plate, the motor is fixedly connected to a driving wheel through a rotating rod, a driven wheel is arranged on the outer side of the driving wheel, and a rotating shaft is fixedly connected to the outer wall of the driven wheel;

[0008] The blades are fixedly connected to the outer wall of the rotating shaft, the cam is fixedly connected to the outer wall of the rotating shaft, the outer wall of the cooling tube is fixedly connected to a fixing plate, the bottom of the fixing plate is fixedly connected to a spring, a magnetic ring 2 is arranged at the bottom of the spring, and the inner wall of the magnetic ring 2 is magnetically connected to the magnetic ring 1.

[0009] As a further description of the above technical solution:

[0010] A separation tube body is arranged on the surface of the raw material recovery pipeline, a plug rod is fixedly connected to the surface of the separation tube body, a plug hole is opened on the surface of the raw material recovery pipeline, a sealing ring is arranged on the outer wall of the separation tube body, and a magnetic attraction sheet is arranged on the surface of the sealing ring.

[0011] As a further description of the above technical solution:

[0012] One end of the cooling pipe away from the circulation pump is located inside the raw material recovery pipeline, and the cooling pipe is arranged in an S shape.

[0013] As a further description of the above technical solution:

[0014] The inner wall of the raw material recovery pipeline is fixedly connected with a bracket, and the outer wall of the rotating shaft is rotatably connected to the inner wall of the rotating shaft.

[0015] As a further description of the above technical solution:

[0016] One end of the spring away from the fixed plate is fixedly connected to the upper surface of the second magnetic ring.

[0017] As a further description of the above technical solution:

[0018] The outer wall of the magnetic ring 1 is slidably connected to the inner wall of the cooling pipe.

[0019] As a further description of the above technical solution:

[0020] The inner surface of the separation tube body is fitted on the inner wall of the raw material recovery pipeline, and the outer wall of the insertion rod is matched with the inner wall of the insertion hole.

[0021] As a further description of the above technical solution:

[0022] The inner surface of the sealing ring is fitted on the outer wall of the raw material recovery pipeline.

[0023] The utility model has the following beneficial effects:

[0024] 1. In the utility model, by providing a cooling structure, a circulating pump fills the cooled coolant into the interior of the cooling pipe, and the motor drives the blades to rotate through the transmission between the driving wheel and the driven wheel, and the blades break up the smoke. The extrusion force of the cam causes the second magnetic ring to drive the first magnetic ring to move inside the cooling pipe to stir the coolant, so that the smoke can be cooled during recovery, and at the same time, the cooling area is expanded to ensure the cooling effect on the smoke.

[0025] 2. In the utility model, the separation tube body and the raw material recovery pipeline can be quickly positioned by providing a socket and an insertion rod. The cooperation of the sealing ring and the magnetic suction sheet can increase the sealing between the separation tube body and the raw material recovery pipeline, facilitate the maintenance of the cooling structure, and ensure the cooling effect on the smoke. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic top view of the main structure of a slag-discharging front bed integrated smoke dust recovery device for a submerged arc furnace proposed by the utility model;

[0027] Figure 2 It is a schematic side view of the partial structure of a smoke dust recovery device integrated with the front bed of a slag discharge electric furnace proposed by the utility model;

[0028] Figure 3 This is an enlarged schematic diagram of region A of an integrated smoke recovery device for a slag discharge front bed of a submerged arc furnace proposed by the utility model;

[0029] Figure 4 This is a schematic diagram of the internal structure of a raw material recovery pipeline of an integrated smoke recovery device for a slag discharge front bed of a submersible thermal electric furnace proposed by the utility model;

[0030] Figure 5 This is an enlarged schematic diagram of the B area of ​​a slag-discharging front bed integrated smoke and dust recovery device for a submerged arc furnace proposed by the utility model;

[0031] Figure 6 It is a partial structural rear view schematic diagram of a smoke dust recovery device integrated with the front bed of a slag discharge electric furnace proposed by the utility model;

[0032] Figure 7 It is an enlarged schematic diagram of the C area of ​​a slag-discharging front bed integrated smoke dust recovery device for a submerged arc furnace proposed by the utility model.

[0033] Legend:

[0034] 1. Feed hopper; 2. Rectangular frame; 3. Connecting pipe; 4. Raw material recovery pipeline; 5. Liquid storage tank; 6. Refrigerator; 7. Circulating pump; 8. Cooling pipe; 9. Mounting plate; 10. Motor; 11. Rotating shaft; 12. Driving wheel; 13. Driven wheel; 14. Blade; 15. Cam; 16. Fixed plate; 17. Spring; 18. Magnetic ring 1; 19. Magnetic ring 2; 20. Bracket; 21. Separation tube body; 22. Socket; 23. Insert rod; 24. Sealing ring; 25. Magnetic sheet. DETAILED DESCRIPTION

[0035] 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.

[0036] Reference Figure 1-Figure 3 The utility model provides an embodiment: an integrated smoke recovery device for a slag discharge front bed of a mineral thermal electric furnace, comprising a feed hopper 1, a rectangular frame 2 is arranged on the top of the feed hopper 1, a connecting pipe 3 is arranged on the top of the rectangular frame 2, a raw material recovery pipeline 4 is arranged on the connecting pipe 3, and a cooling structure is arranged on the surface of the raw material recovery pipeline 4, and the cooling structure comprises a liquid storage tank 5, a refrigerator 6, a circulating pump 7, a cooling pipe 8, a mounting plate 9, a motor 10, a rotating shaft 11, a driving wheel 12, a driven wheel 13, a blade 14, a cam 15, a fixing plate 16, a spring 17, a magnetic ring 18, a magnetic ring 2 19, and a bracket 20.

[0037] Reference Figure 1-Figure 3A refrigerator 6 is arranged on the surface of the liquid storage tank 5. The liquid storage tank 5 stores coolant inside. The refrigerator 6 cools the coolant inside the liquid storage tank 5. A circulating pump 7 is fixedly connected to the top of the liquid storage tank 5. The circulating pump 7 reciprocates to extract the coolant and discharge it into the cooling pipe 8. The output end of the circulating pump 7 is fixedly connected to the cooling pipe 8. A mounting plate 9 is fixedly connected to the surface of the raw material recovery pipeline 4. A motor 10 is fixedly connected to the surface of the mounting plate 9. The motor 10 is fixedly connected to a driving wheel 12 through a rotating rod. A driven wheel 13 is arranged on the outer side of the driving wheel 12. The driving wheel 12 and the driven wheel 13 are connected to each other. The outer wall of the driven wheel 13 is fixedly connected to the rotating shaft 11, and the outer wall of the rotating shaft 11 is fixedly connected to the blades 14. The blades 14 are arranged in several groups, and the several groups of blades 14 are distributed in a circular array with the center point of the rotating shaft 11 as the symmetry axis. The outer wall of the rotating shaft 11 is fixedly connected to a cam 15, and the cam 15 contacts the top of the magnetic ring 19 after rotating one circle. The outer wall of the cooling tube 8 is fixedly connected to a fixing plate 16, and the bottom of the fixing plate 16 is fixedly connected to a spring 17. The bottom of the spring 17 is provided with a magnetic ring 19, and the inner wall of the magnetic ring 19 is magnetically connected to a magnetic ring 18.

[0038] Reference Figure 4-Figure 6 The end of the cooling pipe 8 away from the circulation pump 7 is located inside the raw material recovery pipe 4. The cooling pipe 8 is arranged in an S shape. The S-shaped cooling pipe 8 is convenient for expanding the accommodation area of ​​the coolant. The inner wall of the raw material recovery pipe 4 is fixedly connected with a bracket 20. The bracket 20 provides support force for the rotating shaft 11. The outer wall of the rotating shaft 11 is rotatably connected to the inner wall of the rotating shaft 11. The end of the spring 17 away from the fixed plate 16 is fixedly connected to the upper surface of the magnetic ring 19. The outer wall of the magnetic ring 18 is slidably connected to the inner wall of the cooling pipe 8. When the magnetic ring 19 slides up and down outside the pipe wall of the cooling pipe 8, the magnetic ring 18 can follow it to move inside the cooling pipe 8.

[0039] Reference Figure 7 The surface of the raw material recovery pipe 4 is provided with a separation pipe body 21, and the surface of the separation pipe body 21 is provided with a handle, which is convenient for driving the separation pipe body 21 to separate from the raw material recovery pipe 4. The surface of the separation pipe body 21 is fixedly connected with a plug rod 23, and the surface of the raw material recovery pipe 4 is provided with a plug hole 22. After the plug hole 22 and the plug rod 23 are matched, the raw material recovery pipe 4 and the raw material recovery pipe 4 can be quickly installed as a whole, and the outer wall of the separation pipe body 21 is provided with a sealing ring 24. The sealing ring 24 is provided with a plurality of groups, and a plurality of groups of sealing rings 24 are formed in pairs to form a whole annular sealing structure, and the surface of the sealing ring 24 is provided with a magnetic suction sheet 25, and both ends of the surface of each group of sealing rings 24 are provided with magnetic suction sheets 25, and the magnetic suction sheets 25 and the magnetic suction sheets 25 are magnetically attracted to each other, and the inner surface of the separation pipe body 21 is attached to the inner wall of the raw material recovery pipe 4, the outer wall of the plug rod 23 is adapted to the inner wall of the plug hole 22, and the inner surface of the sealing ring 24 is attached to the outer wall of the raw material recovery pipe 4.

[0040] Working principle: The smoke generated by the electric furnace smelting pool is sucked in through wind pumping, and enters the raw material recovery pipeline 4 through the conveying cylinder, shell, feed hopper 1, rectangular frame 2 and connecting pipe 3 in turn. Before the smoke enters, the circulating pump 7 circulates the coolant refrigerated by the refrigerator 6 into the interior of the cooling tube 8. At the same time, the motor 10 drives the rotating rod, and through the transmission of the driving wheel 12 and the driven wheel 13, the blades 14 break up the smoke, and the smoke can be diverted to contact the wall of the cooling tube 8, thereby improving the contact between the smoke and the cooling tube 8. When the rotating shaft 11 rotates, the cam 15 reciprocates to squeeze the magnetic ring 2 19. When the magnetic ring 2 19 descends, it will drive the magnetic ring 1 18 to move inside the cooling tube 8. When the spring 17 is stretched due to the extrusion force, it will stir the rear end of the cooling tube 8 to increase the pressure. The cooling liquid flows in the cooling pipe 8 quickly. After the raw material recovery pipe 4 has been transporting smoke for a long time, the sealing rings 24 that fit together are manually separated, and then the separation tube body 21 is pulled outward by the handle to separate the insertion rod 23 from the insertion hole 22. The interior of the raw material recovery pipe 4 can be opened through the separation tube body 21, which is convenient for cleaning and maintenance of its internal components. The above-mentioned feed hopper 1, rectangular frame 2, connecting pipe 3 and raw material recovery pipe 4 are similar in principle to the feed hopper, rectangular frame, connecting pipe and raw material recovery pipe mentioned in the Chinese patent with authorization announcement number CN220250673U (smoke recovery device for tin smelting ore thermal electric furnace with speed-controlled spiral feeding function), and the same effect is achieved. It is an existing public technical means in this field and will not be elaborated here.

[0041] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An integrated smoke recovery device for a slag discharge front bed of a submerged arc furnace, comprising a feed hopper (1), a rectangular frame (2) being arranged on the top of the feed hopper (1), a connecting pipe (3) being arranged on the top of the rectangular frame (2), a raw material recovery pipeline (4) being arranged on the connecting pipe (3), characterized in that: The surface of the raw material recovery pipeline (4) is provided with a cooling structure, and the cooling structure comprises: A liquid storage tank (5), a refrigerator (6) is arranged on the surface of the liquid storage tank (5), a circulating pump (7) is fixedly connected to the top of the liquid storage tank (5), a cooling pipe (8) is fixedly connected to the output end of the circulating pump (7), a mounting plate (9) is fixedly connected to the surface of the raw material recovery pipeline (4), a motor (10) is fixedly connected to the surface of the mounting plate (9), the motor (10) is fixedly connected to a driving wheel (12) via a rotating rod, a driven wheel (13) is arranged on the outer side of the driving wheel (12), and a rotating shaft (11) is fixedly connected to the outer wall of the driven wheel (13); The blade (14) is fixedly connected to the outer wall of the rotating shaft (11), the cam (15) is fixedly connected to the outer wall of the rotating shaft (11), the fixing plate (16) is fixedly connected to the outer wall of the cooling tube (8), the bottom of the fixing plate (16) is fixedly connected to a spring (17), the bottom of the spring (17) is provided with a second magnetic ring (19), and the inner wall of the second magnetic ring (19) is magnetically connected to a first magnetic ring (18).

2. The integrated smoke recovery device for the slag discharge front bed of a submerged arc furnace according to claim 1 is characterized by: A separation tube body (21) is provided on the surface of the raw material recovery pipe (4), an insertion rod (23) is fixedly connected to the surface of the separation tube body (21), an insertion hole (22) is opened on the surface of the raw material recovery pipe (4), a sealing ring (24) is provided on the outer wall of the separation tube body (21), and a magnetic attraction sheet (25) is provided on the surface of the sealing ring (24).

3. The integrated smoke recovery device for the slag discharge front bed of a submerged arc furnace according to claim 1 is characterized in that: One end of the cooling pipe (8) away from the circulation pump (7) is located inside the raw material recovery pipeline (4), and the cooling pipe (8) is arranged in an S shape.

4. The integrated smoke recovery device for the slag discharge front bed of a submerged arc furnace according to claim 1 is characterized by: A bracket (20) is fixedly connected to the inner wall of the raw material recovery pipeline (4), and the outer wall of the rotating shaft (11) is rotatably connected to the inner wall of the rotating shaft (11).

5. The integrated smoke recovery device for the slag discharge front bed of a submerged arc furnace according to claim 1 is characterized by: One end of the spring (17) away from the fixed plate (16) is fixedly connected to the upper surface of the second magnetic ring (19).

6. The integrated smoke recovery device for the slag discharge front bed of a submerged arc furnace according to claim 1, characterized in that: The outer wall of the magnetic ring 1 (18) is slidably connected to the inner wall of the cooling pipe (8).

7. The integrated smoke recovery device for the slag discharge front bed of a submerged arc furnace according to claim 2, characterized in that: The inner surface of the separation tube body (21) is fitted onto the inner wall of the raw material recovery pipe (4), and the outer wall of the insertion rod (23) is matched with the inner wall of the insertion hole (22).

8. The integrated smoke recovery device for the slag discharge front bed of a submerged arc furnace according to claim 2, characterized in that: The inner surface of the sealing ring (24) is fitted onto the outer wall of the raw material recovery pipe (4).

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