Metallurgical furnace waste heat recovery device

Abstract

The utility model relates to the technical field of metallurgical furnaces, in particular to a metallurgical furnace waste heat recovery device which comprises a device body, a partition plate is fixedly connected to the interior of the device body, a recovery cavity is formed in the top of the partition plate, an air inlet is formed in one side of the recovery cavity, a circulation assembly is arranged in the recovery cavity, and an air outlet is formed in the other side of the recovery cavity. And the circulating assembly comprises a connecting pipe, the connecting pipe fixedly communicates with the interior of the recycling cavity, one end of the connecting pipe is fixedly connected with a water pump, the water pump is connected with a water tank through a pipeline, and the other end of the connecting pipe fixedly communicates with a discharging pipe. According to the metallurgical furnace waste heat recovery device, the circulating assembly is installed, metallurgical furnace waste gas enters the recovery cavity through the gas inlet, a water pump is started, water in the water tank can absorb heat in the waste gas, and meanwhile the absorbed water is discharged into the water tank through a discharging pipe and recycled; and continuous flowing and efficient heat exchange of a heat exchange medium are ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical furnaces, in particular to a waste heat recovery device for a metallurgical furnace. Background Art

[0002] Industrial furnaces that perform thermal processing on various materials or workpieces during metallurgical production. Thermal processing is a processing process with the heating of materials or workpieces as an important feature, such as roasting, smelting, heating, heat treatment, drying, etc. Most of the production links of steel metallurgy and non-ferrous metallurgy are inseparable from furnaces. Modern metallurgical industrial furnaces can be divided into three categories according to different heat sources: fuel furnaces, electric furnaces, and self-heating furnaces.

[0003] At present, in the process of waste heat recovery, the existing recovery devices usually use water cooling or other cooling media for heat treatment. During use, the medium needs to be constantly replaced to ensure the normal use of waste heat recovery, which affects the recovery efficiency. Utility Model Content

[0004] The purpose of the utility model is to provide a waste heat recovery device for a metallurgical furnace to solve the problem that the existing recovery device proposed in the above background technology usually adopts water cooling or other cooling media for heat treatment during the waste heat recovery process. When in use, it is necessary to constantly replace the medium to ensure the normal use of waste heat recovery, thereby affecting the recovery efficiency. To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a waste heat recovery device for a metallurgical furnace, comprising a device main body, a partition plate is fixedly connected to the interior of the device main body, a recovery chamber is arranged on the top of the partition plate, an air inlet is opened on one side of the recovery chamber, a circulation component is arranged inside the recovery chamber, the circulation component comprises a connecting pipe, the connecting pipe is fixedly connected to the interior of the recovery chamber, one end of the connecting pipe is fixedly connected to a water pump, the water pump is connected to a water tank through a pipeline, the other end of the connecting pipe is fixedly connected to a discharge pipe, one end of the discharge pipe is fixedly connected to one side of the water tank, by installing the circulation component, the exhaust gas from the metallurgical furnace enters the interior of the recovery chamber through the air inlet, the water pump is started, so that the water body in the water tank can flow inside the connecting pipe, absorb the heat in the exhaust gas, thereby realizing the recovery of waste heat, and at the same time, the absorbed water body is discharged into the water tank through the discharge pipe for recycling, thereby ensuring the continuous flow of the heat exchange medium and efficient heat exchange.

[0005] Further preferably, a support plate is fixedly connected to one side of the recovery chamber, a blower is fixedly connected to the top of the support plate, one end of the blower is fixedly connected to an exhaust pipe, and a filter is sleeved on the outer wall of the exhaust pipe. By installing the blower, the heat-treated exhaust gas can be sucked in and circulated in the exhaust pipe, and the exhaust gas is filtered and transported through the filter before circulation.

[0006] Further preferably, a purification chamber is provided at the bottom of the partition plate, one side of the purification chamber is fixedly connected to the exhaust pipe, and a purification component is provided inside the purification chamber. By setting up the purification chamber, the waste gas after heat treatment can be purified. After the waste gas undergoes heat exchange in the recovery chamber, the temperature is reduced, but it may still contain a certain amount of pollutants. The purified waste gas is then discharged into the atmosphere, which can reduce corrosion and damage to subsequent processing equipment and extend the service life of the equipment.

[0007] Further preferably, the purification component includes a mounting plate, which is fixedly connected to the inner wall of the purification chamber, and one side of the mounting plate is fixedly connected to a plurality of water outlet pipes, one end of the plurality of water outlet pipes is fixedly connected to a nozzle, and one end of the mounting plate is fixedly connected to a water inlet pipe, and the top of the water inlet pipe is movably connected to a cover plate. By installing the purification component, water mist can be sprayed to the nozzle through the water outlet pipe during use, and the water mist or droplets capture the pollutants in the exhaust gas and carry them away from the mainstream of the exhaust gas through physical and chemical processes such as adsorption, dissolution, and neutralization, thereby achieving purification of the exhaust gas.

[0008] Further preferably, a filter is fixedly connected to the bottom wall inside the purification chamber, and a collection box is movably connected to the bottom of the filter. A transparent observation window is provided on one side of the collection box, and an exhaust port is provided on one side of the purification chamber. By installing the filter, tiny particles in the exhaust gas can be further filtered to ensure that the discharged gas meets environmental protection standards. The filtered impurities are collected by the collection box and observed through the transparent observation window, so that the staff can check the situation in the collection box at any time and clean it in time.

[0009] Further preferably, a control button is fixedly connected to the front of the device body, a controller is fixedly connected to one side of the control button, and a display light is fixedly connected to the other side of the control button, the control button is electrically connected to the controller, the display light is electrically connected to the controller, the water pump is electrically connected to the controller, and the blower is electrically connected to the controller. When in use, the control button, the controller and the display light together constitute the control system of the device. The user can operate the device through the control button, and the controller is responsible for receiving instructions and controlling the operation of equipment such as the water pump and the blower, and the display light is used to display the working status of the device.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] In the utility model, by installing a circulation component, the waste gas from the metallurgical furnace enters the interior of the recovery chamber through the air inlet, and the water pump is started to allow the water inside the water tank to flow inside the connecting pipe to absorb the heat in the waste gas, thereby realizing the recovery of waste heat. At the same time, the absorbed water is discharged into the water tank through the discharge pipe for recycling, thereby ensuring the continuous flow of the heat exchange medium and efficient heat exchange.

[0012] In the utility model, by installing a purification component, water mist can be sprayed to the nozzle through the water outlet pipe during use. The water mist or droplets capture the pollutants in the exhaust gas and remove them from the mainstream of the exhaust gas through physical and chemical processes such as adsorption, dissolution and neutralization, thereby achieving exhaust gas purification. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The three-dimensional structure of the utility model is shown in FIG. Figure 1 ;

[0014] Figure 2 The three-dimensional structure of the utility model is shown in FIG. Figure 2 ;

[0015] Figure 3 For this utility model Figure 2 A in the middle is an enlarged schematic diagram of the three-dimensional structure;

[0016] Figure 4 The three-dimensional structure of the utility model is shown in FIG. Figure 3 ;

[0017] Figure 5 It is a schematic diagram of a partial three-dimensional structure of the utility model.

[0018] In the figure: 1. device body; 2. partition plate; 3. recovery chamber; 4. air inlet; 5. circulation component; 6. support plate; 7. blower; 8. exhaust pipe; 9. filter; 10. purification chamber; 11. purification component; 12. filter; 13. collection box; 14. transparent observation window; 15. exhaust port; 16. control button; 17. controller; 18. display light; 501. connecting pipe; 502. water pump; 503. water tank; 504. discharge pipe; 1101. mounting plate; 1102. water outlet pipe; 1103. nozzle; 1104. water inlet pipe; 1105. cover plate. DETAILED DESCRIPTION

[0019] 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 technical personnel in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1 - Figure 5The utility model provides a technical solution: a waste heat recovery device for a metallurgical furnace, comprising a device body 1, a partition plate 2 is fixedly connected to the inside of the device body 1, a recovery chamber 3 is arranged on the top of the partition plate 2, an air inlet 4 is opened on one side of the recovery chamber 3, a circulation component 5 is arranged inside the recovery chamber 3, and the circulation component 5 comprises a connecting pipe 501, the connecting pipe 501 is fixedly connected to the inside of the recovery chamber 3, one end of the connecting pipe 501 is fixedly connected to a water pump 502, the water pump 502 is connected to a water tank 503 through a pipeline, and the other end of the connecting pipe 501 is fixedly connected to a water pump 502. One end is fixedly connected with a discharge pipe 504, and one end of the discharge pipe 504 is fixedly connected to one side of the water tank 503. By installing the circulation component 5, when in use, the high-temperature exhaust gas generated by the metallurgical furnace enters the interior of the recovery chamber 3 through the air inlet 4, and the water pump 502 is started by starting the control button 16 to pump the water in the water tank 503 into the recovery chamber 3 through the connecting pipe 501. When the water flows in the recovery chamber 3, it absorbs the heat in the exhaust gas. After absorbing the heat, the water body flows back to the water tank 503 through the discharge pipe 504, thereby realizing the recycling of the heat exchange medium.

[0021] In this embodiment, Figure 2 , Figure 3 and Figure 4 As shown, one side of the recovery chamber 3 is fixedly connected to a support plate 6, the top of the support plate 6 is fixedly connected to a blower 7, one end of the blower 7 is fixedly connected to an exhaust pipe 8, the outer wall of the exhaust pipe 8 is sleeved with a filter screen 9, and a purification chamber 10 is provided at the bottom of the partition plate 2, one side of the purification chamber 10 is fixedly connected to the exhaust pipe 8, and a purification component 11 is provided inside the purification chamber 10. By setting up the purification chamber 10, the temperature of the exhaust gas after heat exchange is reduced during use, and the exhaust gas is then sucked into the purification chamber 10 by the blower 7 through the exhaust pipe 8, and the filter screen 9 filters it at the same time.

[0022] In this embodiment, Figure 2 and Figure 3As shown, the purification component 11 includes a mounting plate 1101, the mounting plate 1101 is fixedly connected to the inner wall of the purification chamber 10, one side of the mounting plate 1101 is fixedly connected to multiple water outlet pipes 1102, one end of the multiple water outlet pipes 1102 is fixedly connected to a nozzle 1103, one end of the mounting plate 1101 is fixedly connected to a water inlet pipe 1104, the top of the water inlet pipe 1104 is movably connected to a cover plate 1105, the bottom wall inside the purification chamber 10 is fixedly connected to a filter screen 12, the bottom of the filter screen 12 is movably connected to a collection box 13, one side of the collection box 13 is provided with a transparent observation window 14, and the purification chamber 10 is fixedly connected to the bottom wall of the purification chamber 10. An exhaust port 15 is opened on one side. By installing the purification component 11, when in use, in the purification chamber 10, the water inlet pipe 1104 supplies water to the water outlet pipe 1102 on the mounting plate 1101, and the water is sprayed into water mist or droplets through the nozzle 1103, and comes into contact with the pollutants in the exhaust gas and undergoes physical and chemical processes such as adsorption, dissolution, and neutralization. The purified exhaust gas continues to flow downward, passes through the filter net 12 to further filter tiny particles, and is finally discharged into the atmosphere through the exhaust port 15. The filtered impurities are collected in the collection box 13, and the staff can observe the collection situation through the transparent observation window 14 and clean it up in time.

[0023] In this embodiment, Figure 1 and Figure 4 As shown, a control button 16 is fixedly connected to the front of the device body 1, a controller 17 is fixedly connected to one side of the control button 16, and a display light 18 is fixedly connected to the other side of the control button 16. The control button 16 is electrically connected to the controller 17, the display light 18 is electrically connected to the controller 17, the water pump 502 is electrically connected to the controller 17, and the blower 7 is electrically connected to the controller 17. When in use, the control button 16, the controller 17 and the display light 18 together constitute the control system of the device. The user can operate the device through the control button 16, and the controller 17 is responsible for receiving instructions and controlling the operation of the water pump 502, the blower 7 and other equipment. The display light 18 is used to display the working status of the device.

[0024] The use method and advantages of the utility model: When the waste heat recovery device of the metallurgical furnace is used, the working process is as follows:

[0025] like Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5As shown, when in use, the high-temperature exhaust gas generated by the metallurgical furnace enters the interior of the recovery chamber 3 through the air inlet 4, and the water pump 502 is started by starting the control button 16 to pump the water in the water tank 503 into the recovery chamber 3 through the connecting pipe 501. When the water flows in the recovery chamber 3, it absorbs the heat in the exhaust gas. The water body after absorbing the heat flows back to the water tank 503 through the discharge pipe 504, so as to realize the recycling of the heat exchange medium. The temperature of the exhaust gas after the heat exchange is reduced, and the exhaust gas is then sucked into the purification chamber 10 by the blower 7 through the exhaust pipe 8. In the purification chamber 10, The water pipe 1104 supplies water to the water outlet pipe 1102 on the mounting plate 1101. The water is sprayed into water mist or droplets through the nozzle 1103, and comes into contact with the pollutants in the exhaust gas to undergo physical and chemical processes such as adsorption, dissolution, and neutralization. The purified exhaust gas continues to flow downward, and further filters tiny particles through the filter mesh 12, and is finally discharged into the atmosphere through the exhaust port 15. The filtered impurities are collected in the collection box 13. The staff can observe the collection situation through the transparent observation window 14 and clean it in time. At the same time, the user operates the device through the control button 16.

[0026] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A waste heat recovery device for a metallurgical furnace, comprising a device body (1), characterized in that: A partition plate (2) is fixedly connected to the inside of the device body (1); a recovery chamber (3) is arranged on the top of the partition plate (2); an air inlet (4) is opened on one side of the recovery chamber (3); a circulation component (5) is arranged inside the recovery chamber (3); the circulation component (5) comprises a connecting pipe (501); the connecting pipe (501) is fixedly connected to the inside of the recovery chamber (3); one end of the connecting pipe (501) is fixedly connected to a water pump (502); the water pump (502) is connected to a water tank (503) via a pipeline; the other end of the connecting pipe (501) is fixedly connected to a discharge pipe (504); one end of the discharge pipe (504) is fixedly connected to one side of the water tank (503).

2. A metallurgical furnace waste heat recovery device according to claim 1, characterized in that: A support plate (6) is fixedly connected to one side of the recovery chamber (3), a blower (7) is fixedly connected to the top of the support plate (6), one end of the blower (7) is fixedly connected to an exhaust pipe (8), and a filter screen (9) is sleeved on the outer wall of the exhaust pipe (8).

3. The waste heat recovery device for a metallurgical furnace according to claim 1, characterized in that: A purification chamber (10) is provided at the bottom of the partition plate (2), one side of the purification chamber (10) is fixedly connected to the exhaust pipe (8), and a purification component (11) is provided inside the purification chamber (10).

4. A metallurgical furnace waste heat recovery device according to claim 3, characterized in that: The purification component (11) comprises a mounting plate (1101), wherein the mounting plate (1101) is fixedly connected to the inner wall of the purification chamber (10), one side of the mounting plate (1101) is fixedly connected to a plurality of water outlet pipes (1102), one end of the plurality of water outlet pipes (1102) is fixedly connected to a nozzle (1103), one end of the mounting plate (1101) is fixedly connected to a water inlet pipe (1104), and the top of the water inlet pipe (1104) is movably connected to a cover plate (1105).

5. The metallurgical furnace waste heat recovery device according to claim 3, characterized in that: A filter screen (12) is fixedly connected to the bottom wall of the purification chamber (10), a collection box (13) is movably connected to the bottom of the filter screen (12), a transparent observation window (14) is provided on one side of the collection box (13), and an exhaust port (15) is provided on one side of the purification chamber (10).

6. A metallurgical furnace waste heat recovery device according to claim 2, characterized in that: A control button (16) is fixedly connected to the front of the device body (1), a controller (17) is fixedly connected to one side of the control button (16), and a display light (18) is fixedly connected to the other side of the control button (16); the control button (16) is electrically connected to the controller (17), the display light (18) is electrically connected to the controller (17), the water pump (502) is electrically connected to the controller (17), and the blower (7) is electrically connected to the controller (17).

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