Top combustion type hot blast stove

Abstract

The utility model discloses a top combustion type hot-blast stove in the technical field of hot-blast stoves, which comprises a base, a stove body mounted on the base, a smoke pipe mounted on the stove body, a partition plate fixedly connected in the smoke pipe, an adjusting mechanism mounted on the smoke pipe and movably connected with the partition plate, and a heat exchange box mounted on the base. The smoke pipes are located in the heat exchange box, a heat exchange pipe is installed in the heat exchange box, a communicating pipe is fixedly connected to the heat exchange pipe, the communicating pipe and one end of the heat exchange pipe are connected into the two smoke cavities in a penetrating mode respectively, a liquid injection pipe is installed on the heat exchange box, a filtering mechanism is installed on the heat exchange box, the other end of the heat exchange pipe is connected to the filtering mechanism in a penetrating mode, and an exhaust pipe is installed on the filtering mechanism. The waste of resources is effectively reduced, and meanwhile, the working efficiency of the equipment is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot blast stoves, in particular to a top-burning hot blast stove. Background Art

[0002] The top-burning hot blast furnace is a device for heating and blowing air for blast furnaces, and is an important and indispensable part of modern blast furnaces. The most commonly used in modern large blast furnaces is the regenerative lattice brick hot blast furnace, which can be divided into top-burning, internal-burning, external-burning and other types according to the combustion method. Its working principle is to burn gas first, use the generated flue gas to heat the lattice bricks in the regenerative chamber, and then heat the cold air through the red-hot lattice bricks, and then the hot blast furnace is alternately burned and blown, so that the blast furnace can continuously obtain high-temperature hot air. The existing top-burning hot blast furnace needs to transport the hot air through the hot air outlet pipe during the transmission process. The hot air outlet pipe connects the blast furnace with the hot blast furnace. The hot air outlet pipe is usually installed outside. When the equipment is used in winter, the temperature difference between the internal and external gases is large, which can easily cause the hot air outlet pipe to be damaged faster. After the service life of the hot air outlet pipe is reduced, it needs to be repaired and replaced after a short period of use. During the repair and replacement of the hot air outlet pipe, the entire equipment needs to be shut down and wait, and the entire equipment needs to be shut down, etc. It will affect the blast furnace processing efficiency later. To solve the above problems, a technical solution is disclosed in patent number: CN202320427951.1. This technical solution can solve the above problems, but this technical solution still has some problems when it is used. This technical solution uses a heating ring to heat the outer wall of the smoke pipe when in use. When the smoke pipe is exhausting smoke, the flue gas generally contains a large amount of heat. This technical solution does not utilize the heat, but heats it through external resources, resulting in a waste of resources. At the same time, during the exhaust process, the flue has only one exhaust hole. When a lot of dust accumulates in the flue, the equipment needs to be shut down for maintenance, which affects the efficiency of the equipment when in use.

[0003] Based on this, the utility model designs a top-burning hot blast stove to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a top-burning hot blast stove to solve the problems of resource waste and maintenance required in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A top-burning hot blast stove comprises a base, a furnace body is mounted on the base, a smoke pipe is mounted on the furnace body, a partition is fixedly connected inside the smoke pipe, the partition separates the inside of the furnace body into two smoke chambers, an adjusting mechanism is mounted on the smoke pipe, the adjusting mechanism and the partition are movably connected, a heat exchange box is mounted on the base, the smoke pipe is located inside the heat exchange box, a heat exchange tube is mounted inside the heat exchange box, a connecting tube is fixedly connected to the heat exchange tube, one end of the connecting tube and the heat exchange tube are respectively connected in two smoke chambers, an injection tube is mounted on the heat exchange box, a filtering mechanism is mounted on the heat exchange box, the other end of the heat exchange tube is connected in a through-connection to the filtering mechanism, and an exhaust pipe is mounted on the filtering mechanism.

[0007] Preferably, the adjustment mechanism includes a drive motor, a drive shaft and an adjustment plate. The smoke pipe is equipped with a drive motor, the output end of the drive motor is fixedly connected to the drive shaft, the drive shaft is equipped with an adjustment plate, the adjustment plate is arc-shaped, and one end of the adjustment plate is movably connected to the partition.

[0008] Preferably, the heat exchange tube is spiral-shaped, the heat exchange tube is installed in a heat exchange box, and the smoke pipe is located inside the heat exchange tube.

[0009] Preferably, the filtering mechanism comprises a box body, a spring, a placement rack and a handle, the heat exchange box is installed with a box body, two springs are fixedly connected in the box body, a placement rack is fixedly connected between the two springs, and filter cotton is arranged in the placement rack.

[0010] Preferably, a handle is installed on the placement rack, and a rubber anti-slip layer is provided on the surface of the handle.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The utility model controls the operation of the driving motor so that the driving motor controls the driving shaft to rotate. When the driving shaft rotates, the driving shaft controls the adjusting plate to rotate. When the adjusting plate rotates, an angle is formed between the adjusting plate and the partition, so that the adjusting plate can block one of the smoke chambers and block the other smoke chamber at the same time. When one of the smoke chambers is blocked, the smoke can be continuously discharged, and the other smoke chamber can be cleaned at this time, so that the equipment can be cleaned without stopping, thereby ensuring the working efficiency of the equipment;

[0013] 2. When the flue gas passes through the smoke chamber, the flue gas rushes into the heat exchange tube. Since the heat exchange box contains a large amount of liquid, the heat exchange box can effectively absorb the heat in the flue gas when the heat exchange tube passes through the heat exchange box, so that the temperature of the liquid increases, thereby effectively heating the smoke tube to avoid excessive cooling of the external air and damage to the flue. At the same time, the heat in the flue gas can effectively replace external resources, so that the equipment can save more energy when working and prevent waste of resources. After the heat in the flue gas is absorbed, the flue gas enters the box body, and the filter cotton in the box body adsorbs the impurities in the flue gas. The adsorbed air is then discharged by the exhaust pipe. Continuous work in this way can effectively improve the working efficiency of the equipment, while ensuring the utilization of resources and avoiding waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0015] Figure 1 This is a schematic diagram of the structure of the utility model from the front side perspective;

[0016] Figure 2 This is a schematic diagram of the internal structure of the utility model from the right side perspective;

[0017] Figure 3 This is a schematic diagram of the internal structure of the utility model from a partial front side perspective;

[0018] Figure 4 It is a schematic diagram of the internal structure of the utility model from a partial left side perspective.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Base; 2. Furnace body; 3. Smoke pipe; 4. Partition; 5. Smoke chamber; 6. Adjustment mechanism; 7. Drive motor; 8. Drive shaft; 9. Adjustment plate; 10. Heat exchange box; 11. Heat exchange tube; 12. Connecting pipe; 13. Liquid injection pipe; 14. Filter mechanism; 15. Box; 16. Spring; 17. Placement rack; 18. Handle; 19. Exhaust pipe. DETAILED DESCRIPTION

[0021] 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 of 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.

[0022] See also Figure 1-Figure 4 , the utility model provides a technical solution:

[0023] A top-burning hot blast stove comprises a base 1, a furnace body 2 is mounted on the base 1, a smoke pipe 3 is mounted on the furnace body 2, a partition 4 is fixedly connected inside the smoke pipe 3, the partition 4 separates the inside of the furnace body 2 into two smoke chambers 5, an adjusting mechanism 6 is mounted on the smoke pipe 3, the adjusting mechanism 6 and the partition 4 are movably connected, a heat exchange box 10 is mounted on the base 1, the smoke pipe 3 is located in the heat exchange box 10, a heat exchange tube 11 is mounted in the heat exchange box 10, a connecting tube 12 is fixedly connected to the heat exchange tube 11, one end of the connecting tube 12 and the heat exchange tube 11 are respectively connected in two smoke chambers 5, a liquid injection tube 13 is mounted on the heat exchange box 10, a filtering mechanism 14 is mounted on the heat exchange box 10, the other end of the heat exchange tube 11 is connected in a through-connection to the filtering mechanism 14, an exhaust pipe 19 is mounted on the filtering mechanism 14.

[0024] Among them, the adjustment mechanism 6 includes a drive motor 7, a drive shaft 8 and an adjustment plate 9. The drive motor 7 is installed on the smoke pipe 3. The output end of the drive motor 7 is fixedly connected to the drive shaft 8. The adjustment plate 9 is installed on the drive shaft 8. The adjustment plate 9 is arc-shaped, and one end of the adjustment plate 9 is movably connected to the partition 4; it is convenient to control the circulation of smoke so that it can flow in different smoke chambers 5, thereby facilitating the cleaning of the smoke chamber 5 with accumulated dust, so that it can work without stopping, and further improve the working efficiency of the equipment.

[0025] Among them, the heat exchange tube 11 is spiral, the heat exchange tube 11 is installed in the heat exchange box 10, and the smoke pipe 3 is located on the inner side of the heat exchange tube 11; it is convenient to improve the heat exchange efficiency of the equipment, further absorb the heat in the flue gas, make it heat exchange, and then further heat the smoke pipe 3 to reduce energy waste.

[0026] Among them, the filtering mechanism 14 includes a box body 15, a spring 16, a placement rack 17 and a handle 18. The box body 15 is installed on the heat exchange box 10. Two springs 16 are fixedly connected inside the box body 15. A placement rack 17 is fixedly connected between the two springs 16. Filter cotton is arranged in the placement rack 17, which is convenient for filtering the smoke and thus avoiding environmental waste.

[0027] A handle 18 is installed on the placement rack 17, and a rubber anti-skid layer is provided on the surface of the handle 18, which is convenient for replacing the filter cotton.

[0028] Working principle:

[0029] During operation, the driving motor 7 is controlled to control the driving shaft 8 to rotate. When the driving shaft 8 rotates, the driving shaft 8 controls the adjusting plate 9 to rotate. When the adjusting plate 9 rotates, an angle is formed between the adjusting plate 9 and the partition 4, so that the adjusting plate 9 can block one of the smoke chambers 5 and block the other smoke chamber 5 at the same time. When one of the smoke chambers 5 is blocked, the smoke can be continuously discharged. At this time, the other smoke chamber 5 can be cleaned, and then the equipment can be cleaned without stopping, thereby ensuring the working efficiency of the equipment. When the smoke passes through the smoke chamber 5, the smoke rushes into the heat exchange tube 11. Since the heat exchange box 10 contains a large amount of liquid, Therefore, when the heat exchange tube 11 passes through the heat exchange box 10, the heat exchange box 10 can effectively absorb the heat in the flue gas, increase the temperature of the liquid, and thus effectively heat the smoke pipe 3 to prevent the external air from being too cold and causing damage to the flue. At the same time, the heat in the smoke can effectively replace external resources, making the equipment more energy-saving when working and preventing waste of resources. After the heat in the smoke is absorbed, the smoke enters the box body 15, and the filter cotton in the box body 15 adsorbs impurities in the smoke, and then the adsorbed air is discharged through the exhaust pipe 19. Continuous work in this way can effectively improve the working efficiency of the equipment, while ensuring the utilization of resources and avoiding waste of resources.

Claims

1. A top-burning hot air stove, comprising a base (1), characterized in that: A furnace body (2) is mounted on the base (1), a smoke pipe (3) is mounted on the furnace body (2), a partition (4) is fixedly connected inside the smoke pipe (3), the partition (4) separates the interior of the furnace body (2) into two smoke chambers (5), an adjustment mechanism (6) is mounted on the smoke pipe (3), the adjustment mechanism (6) and the partition (4) are movably connected, a heat exchange box (10) is mounted on the base (1), the smoke pipe (3) is located inside the heat exchange box (10), and the heat exchange box (10) is ) is installed in a heat exchange tube (11), a connecting tube (12) is fixedly connected to the heat exchange tube (11), one end of the connecting tube (12) and the heat exchange tube (11) are respectively connected through two smoke chambers (5), a liquid injection tube (13) is installed on the heat exchange box (10), a filter mechanism (14) is installed on the heat exchange box (10), the other end of the heat exchange tube (11) is connected through the filter mechanism (14), and an exhaust pipe (19) is installed on the filter mechanism (14).

2. A top-fired hot blast stove according to claim 1, characterized in that: The regulating mechanism (6) comprises a driving motor (7), a driving shaft (8) and an regulating plate (9); the driving motor (7) is mounted on the smoke pipe (3); the output end of the driving motor (7) is fixedly connected to the driving shaft (8); the regulating plate (9) is mounted on the driving shaft (8); the regulating plate (9) is arc-shaped; one end of the regulating plate (9) is movably connected to the partition plate (4).

3. A top-fired hot blast stove according to claim 1, characterized in that: The heat exchange tube (11) is spiral-shaped, and is installed in a heat exchange box (10). The smoke pipe (3) is located inside the heat exchange tube (11).

4. A top-fired hot blast stove according to claim 1, characterized in that: The filtering mechanism (14) comprises a box body (15), a spring (16), a placement rack (17) and a handle (18); the box body (15) is installed on the heat exchange box (10); two springs (16) are fixedly connected inside the box body (15); a placement rack (17) is fixedly connected between the two springs (16); and filter cotton is arranged inside the placement rack (17).

5. A top-fired hot blast stove according to claim 4, characterized in that: A handle (18) is installed on the placement rack (17), and a rubber anti-slip layer is provided on the surface of the handle (18).

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