Energy-saving forging furnace
By setting up a heat exchange device in the smoke exhaust channel of the forging furnace, the high-temperature flue gas is quickly cooled, which solves the problem of high-temperature flue gas damaging the filter plate, and improves the smoke filtering effect and the environmental protection performance of the equipment.
Patent Information
- Application Number
- CN202510211018.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-25
- Publication Date
- 2025-05-13
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
When the high-temperature flue gas enters the dust removal device directly, the existing forging furnaces can easily cause high temperature damage to the filter plate, and the high-temperature filter plate is inconvenient for replacement or maintenance.
The heat exchange device is arranged in the smoke exhaust passage of the forging furnace, including a heat exchange box and a heat exchange tube. The smoke guide plate and nozzle in the heat exchange box can achieve rapid cooling of the smoke, and then lower the smoke temperature before entering the smoke filtering device.
It effectively avoids the direct damage to the filter plate by high-temperature flue gas, extends the service life of the filter plate, and improves the smoke filtering effect, reduces smoke emissions, and improves the environmental protection performance of the equipment.
Smart Images
Figure CN119973030A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of forging equipment, and in particular to an energy-saving forging furnace. Background Art
[0002] Forging furnaces are widely used in the industrial field for heating and forging metals. Their energy consumption and environmental friendliness have a significant impact on production efficiency and environmental impact. With the increasing environmental protection requirements and energy shortages, energy-efficient and environmentally friendly forging furnaces have become an important direction for the development of the industry, which has also prompted companies and research institutions to continuously explore and optimize relevant technical solutions. In the prior art, in order to solve the pollution problem in flue gas emissions, the commonly used method is to set filter plates and other devices on the exhaust channel of the furnace body for dust removal, and use filter plates of different materials or specifications to filter particulate matter in the smoke, thereby reducing smoke emissions.
[0003] However, high-temperature flue gas directly entering the dust removal device can easily cause high-temperature damage to the filter plate, and the high-temperature filter plate is not convenient for subsequent replacement or maintenance, so there is room for improvement. Summary of the invention
[0004] In order to quickly cool the high-temperature flue gas and then filter the smoke, the present application provides an energy-saving forging furnace.
[0005] The energy-saving forging furnace provided in this application adopts the following technical solution: An energy-saving forging furnace comprises a furnace body and a smoke exhaust channel connected to the furnace body, the smoke exhaust channel is provided with a smoke filter device, the smoke exhaust channel is also provided with a heat exchange device and the heat exchange device is located between the furnace body and the smoke filter device, the heat exchange device comprises a heat exchange box, the heat exchange box is provided with a smoke inlet and a smoke outlet for being connected in series with the smoke exhaust channel, a plurality of heat exchange tubes are arranged inside the heat exchange box, a water collecting tank body is connected to the bottom of the heat exchange box, and a pump body for supplying liquid to the plurality of heat exchange tubes is arranged inside the water collecting tank body. By adopting the above technical scheme, the energy-saving forging furnace is provided with a heat exchange device on the smoke exhaust channel, which can quickly cool the high-temperature smoke and reduce the smoke temperature, thereby avoiding the problem of high-temperature damage to the filter plate caused by the high-temperature smoke directly entering the smoke filter device, and extending the service life of the filter plate. At the same time, the cooled smoke enters the smoke filter device, which improves the smoke filtering effect, reduces smoke emissions, and improves the environmental protection performance of the equipment. The pump body inside the water collecting tank provides cooling liquid for the heat exchange tubes, ensuring the continuity and high efficiency of the cooling process. Preferably, a plurality of smoke guide plates are provided on the inner wall of the heat exchange box, and the plurality of smoke guide plates are staggered so that the path of the smoke from the smoke inlet to the smoke outlet is in an "S" shape. By adopting the above technical scheme, the plurality of smoke guide plates provided on the inner wall of the heat exchange box are staggered so that the path of the smoke from the smoke inlet to the smoke outlet is in an "S" shape, which increases the flow path length of the smoke in the heat exchange box, improves the contact time and heat exchange efficiency between the smoke and the heat exchange tubes, and thus realizes effective cooling of the high-temperature smoke. Preferably, the top wall of the smoke guide plate is provided with an enclosure along the circumferential direction, and the top wall of the smoke guide plate and the inner wall of the enclosure form a water storage area. By adopting the above technical solution, the enclosure arranged along the circumferential direction of the top wall of the smoke guide plate and the top wall of the smoke guide plate together form a water storage area, which can store coolant, increase the contact area between the smoke and the coolant, and further improve the heat exchange efficiency, so that the smoke can be cooled more fully when passing through the heat exchange box, thereby effectively reducing the burden of the smoke filter device and improving the cooling and filtering effect of the entire energy-saving forging furnace. Preferably, the water storage area has a concave area and the bottom wall of the smoke guide plate is connected with a nozzle through the concave area. By adopting the above technical solution, the concave area of the water storage area can store more coolant, and the nozzle connected through the bottom wall of the smoke guide plate near the concave area can spray the coolant to the high-temperature smoke, thereby improving the smoke cooling effect and reducing the risk of damage to the filter plate. Preferably, the top of the heat exchange box is connected to a reflux tank body for receiving the liquid sprayed from the top of the falling heat exchange tube, and the bottom of the reflux tank body is connected to a nozzle, and the bottom of the nozzle extends into the heat exchange box. By adopting the above technical solution, the reflux trough body arranged on the top of the heat exchange box can effectively receive the liquid sprayed from the top of the heat exchange tube, and spray it back into the heat exchange box through the nozzle arranged at the bottom, thereby realizing liquid recycling and improving heat exchange efficiency.Preferably, a resonance ring plate is connected to the opening of the reflux tank body, and the resonance ring plate is provided with a plurality of clearance holes for the heat exchange tubes to pass through, and the heat exchange tubes are matched with the clearance holes. By adopting the above technical scheme, the falling water body has a certain potential energy, and the collision of the falling water body with the resonance ring plate can drive the heat exchange box to vibrate as a whole, so that the smoke and turbid liquid in the heat exchange box is not easy to hang on the wall, and the turbid liquid is not easy to stratify after standing for a long time. Preferably, the resonance ring plate is provided with a plurality of drainage holes, and the plurality of drainage holes are arranged along the circumference of the resonance ring plate, and the height of the drainage holes is lower than the clearance holes. By adopting the above technical scheme, the drainage holes arranged on the resonance ring plate can effectively discharge excess liquid and avoid liquid accumulation; the drainage holes are arranged along the circumference of the resonance ring plate to ensure that the liquid is evenly distributed and flows downward along the outer wall of the heat exchange box to cool down the outer wall of the heat exchange box, and at the same time, the liquid can also quickly dissipate heat to improve the heat exchange efficiency. Preferably, the ports at the bottom ends of the several drainage holes are rotatably connected with a guide tube connected to the drainage holes, and a non-slip sleeve is provided at the bottom of the guide tube, which abuts against the top wall of the heat exchange box. By adopting the above technical solution, the ports at the bottom ends of the several drainage holes are rotatably connected with a guide tube connected to the drainage holes, and a non-slip sleeve is provided at the bottom of the guide tube, and the non-slip sleeve abuts against the top wall of the heat exchange box, so that the liquid discharged from the drainage holes is effectively guided, thereby adjusting the angle of water discharge. If the angle is vertically downward, the liquid is recovered faster, and if the angle is inclined, the liquid stays on the side wall of the heat exchange box longer.
[0006] Preferably, a sedimentation ring plate is provided on the inner wall of the water collecting tank body, a gap is left between the bottom of the sedimentation ring plate and the inner bottom wall of the water collecting tank, an overflow ring plate is provided on the inner bottom wall of the water collecting tank, the overflow ring plate is located inside the sedimentation ring plate, and the pump body is located inside the overflow ring plate. By adopting the above technical solution, a sedimentation ring plate is provided on the inner wall of the water collecting tank body, a gap is left between the bottom of the sedimentation ring plate and the inner bottom wall of the water collecting tank body, an overflow ring plate is provided on the inner bottom wall of the water collecting tank body, the overflow ring plate is located inside the sedimentation ring plate, and the pump body is located inside the overflow ring plate, thereby achieving effective sedimentation and separation of the liquid, reducing impurities entering the pump body to cause blockage or damage, and improving the stability and service life of the system. Preferably, a guide ring plate is provided at the bottom of the heat exchange box, the bottom of the guide ring plate is tilted outward and the bottom of the guide ring plate is located between the sedimentation ring plate and the side wall of the water collecting tank body. By adopting the above technical solution, the guide ring plate provided at the bottom of the heat exchange box can effectively guide the coolant to flow to the edge of the water collecting tank body, thereby more stably precipitating.
[0007] In summary, the present application includes at least one of the following beneficial technical effects: 1. By arranging a heat exchange device in the exhaust channel and locating the heat exchange device between the furnace body and the smoke filter device, the temperature of the high-temperature smoke can be effectively reduced, and the problem of high-temperature smoke directly entering the dust removal device and causing damage to the filter plate can be avoided; 2. The adsorption of larger particles of smoke and dust during the spray cooling process can also reduce the replacement frequency of subsequent filter devices, enhance reliability and simplify maintenance, making the entire device more energy-saving, environmentally friendly and efficient; 3. A pump body is installed inside the water collecting tank connected to the bottom of the heat exchange box, which can continuously provide coolant to the heat exchange tube, ensuring the effective operation of the heat exchange device and improving the energy-saving and environmental protection performance of the forging furnace. BRIEF DESCRIPTION OF THE DRAWINGS
[0008] Figure 1 This is a schematic diagram of the structure of an embodiment of the present application; Figure 2 A top view of an embodiment of the present application; Figure 3 for Figure 2 Cross-sectional view along AA direction; Figure 4 This is a structural schematic diagram for reflecting the connection relationship between the smoke guide plate and the heat exchange box in the embodiment of the present application; Figure 5 for Figure 2 Cross-sectional view along direction BB; Figure 6 This is a structural schematic diagram for illustrating the connection relationship between the flow guide tube and the resonance ring plate in the embodiment of the present application; Figure 7 for Figure 6 Enlarged view of point C in the middle.
[0009] In the figure: 1. Furnace body; 11. Smoke exhaust passage; 2. Heat exchange device; 21. Heat exchange box; 211. Smoke inlet; 212. Smoke outlet; 22. Heat exchange tube; 23. Drain pipe; 24. Smoke guide plate; 241. Baffle; 242. Concave area; 25. Guide ring plate; 3. Smoke and dust filtering device; 4. water collecting tank body; 41. pump body; 42. sedimentation ring plate; 43. overflow ring plate; 44. grid pad; 5. Reflux tank body; 51. Nozzle; 52. Resonance ring plate; 520. Make way hole; 521. Drain hole; 53. Flow guide pipe; 54. Bellows; 55. Anti-slip sleeve. DETAILED DESCRIPTION
[0010] The following will be combined with the accompanying drawings to clearly and completely describe the technical solutions in the embodiments of the present invention. The described embodiments are only possible technical implementations of the present invention, not all possible implementations. Those skilled in the art can completely combine the embodiments of the present invention to obtain other embodiments without creative work, and these embodiments are also within the scope of protection of the present invention.
[0011] The following is combined with Figure 1-7 This application is described in further detail.
[0012] The present application embodiment discloses an energy-saving forging furnace. Figure 1 An energy-saving forging furnace includes a furnace body 1 and a smoke exhaust channel 11 installed on the top cover of the furnace body 1. The smoke exhaust channel 11 is sequentially provided with a heat exchange device 2 and a smoke dust filter device 3 along the flow direction of the smoke. The heat exchange device 2 includes a heat exchange box 21, and the heat exchange box 21 is provided with a smoke inlet 211 and a smoke outlet 212 for being connected in series with the smoke exhaust channel 11. The smoke inlet 211 is located at the top position of one side wall, and the smoke outlet 212 is located at the bottom position of the other side wall, so that the smoke path in the heat exchange box 21 is longer.
[0013] Reference Figure 2 and Figure 3 The bottom of the heat exchange box 21 is connected to a water collecting tank body 4, a pump body 41 is placed inside the water collecting tank body 4, and the pump body 41 is connected to a plurality of heat exchange tubes 22 through pipelines. The plurality of heat exchange tubes 22 all pass through the interior of the heat exchange box 21 and can directly discharge water from the top and fall back to the outer wall of the heat exchange box 21 and finally fall back to the interior of the water collecting tank body 4 along the outer wall of the heat exchange box 21. In this process, the high-temperature flue gas inside the heat exchange box 21 can exchange heat energy with the heat exchange tube 22 to cool down, and the water on the outer wall of the heat exchange box 21 can also absorb heat by evaporation to cool down the outer shell of the heat exchange box 21. In addition, the water body can also be cooled by heat exchange with the external air and finally recovered to the interior of the water collecting tank body 4 for circulating water supply.
[0014] Reference Figure 3 The top wall of the heat exchange box 21 is welded and fixed with a reflux tank body 5, which opens upward to receive the liquid sprayed from the top of the heat exchange tube 22. The bottom of the reflux tank body 5 is equipped with a nozzle 51, and the bottom of the nozzle 51 extends into the inside of the heat exchange box 21. The flue gas flows and exchanges heat inside the heat exchange box 21 to assist in spraying and cooling. On the one hand, spraying can promote heat exchange to achieve rapid cooling of the flue gas. On the other hand, water mist can also adsorb larger particles of smoke in the smoke, and finally discharge them from the drain pipe 23 at the bottom of the heat exchange box 21, thereby reducing large particles of smoke entering the subsequent smoke filter device 3, reducing the workload of the smoke filter device 3, and reducing the replacement / maintenance frequency of the smoke filter.
[0015] Reference Figure 3, the inner wall of the heat exchange box 21 is also welded and fixed with a number of smoke guide plates 24, which are themselves arranged horizontally and evenly distributed vertically. In addition, two vertically adjacent smoke guide plates 24 are respectively located at positions opposite to the inner wall of the heat exchange box 21, thereby realizing the staggered distribution of a number of smoke guide plates 24. In this embodiment, the transverse cross section of the smoke guide plate 24 covers more than half of the area of the inner cross section of the heat exchange box 21, so that the walking path of the flue gas in the heat exchange box 21 is "S" shaped, so that the flue gas stays longer inside the heat exchange box 21, increases the cooling time, and improves the cooling effect. The smoke guide plate 24 can be made of different materials, such as an aluminum alloy smoke guide plate 24 or a copper alloy smoke guide plate 24, and is finely processed to ensure that its surface is smooth and burr-free to prevent smoke particles from accumulating on its surface.
[0016] Reference Figure 3 and Figure 4 , the top wall of the smoke guide plate 24 is also bent along the circumferential direction to form a baffle 241, and the baffle 241 and the top wall of the smoke guide plate 24 form a water storage area. The function of the water storage area is to form a layer of liquid buffer to further enhance the contact between the flue gas and the coolant. In addition, the bottom wall of the smoke guide plate 24 is also provided with a concave area 242, and the position of the concave area 242 is as close as possible to the center of the water storage area below. The smoke guide plate 24 is also connected to a nozzle 51 at a position close to the concave area 242, so that spray cooling can be performed at each bend of the "S"-shaped path of the flue gas. After the smoke and dust turbid liquid in the water storage area above is full, it can overflow along the edge of the smoke guide plate 24 to the next layer of water storage area, thereby realizing water supply to each layer of water storage area. The smoke and dust turbid liquid in the water storage area of the lowest layer is finally discharged directly from the drain pipe 23 at the bottom of the heat exchange box 21. Therefore, the water volume of the entire device will continue to be lost, and it is necessary to continuously replenish the lost water volume in the water collection tank body 4 to achieve continuous operation.
[0017] Reference Figure 4 A resonance ring plate 52 is welded and fixed to the edge of the top opening of the reflux trough body 5. On the one hand, the resonance ring plate 52 can receive the falling water in a larger range and more stably. On the other hand, the falling water has a certain potential energy. When it finally collides with the resonance ring plate 52, it can drive the reflux trough body 5 and the heat exchange box 21 to vibrate slightly as a whole, thereby helping to shake off the water droplets hanging on the wall of the heat exchange box 21, and also helping to make the smoke and dust turbid liquid in the water storage area not easy to stand and stratify. Because once the smoke and dust turbid liquid stands for a certain period of time, a mud-like stratification will form at the bottom, which can easily directly cause the nozzle to fail to spray smoothly or be directly damaged.
[0018] Reference Figure 5The resonance ring plate 52 is provided with a plurality of clearance holes 520, which correspond to the heat exchange tubes 22 one by one for them to pass through, and the heat exchange tubes 22 and the clearance holes 520 are matched with each other in a gap to reduce the influence of the heat exchange tubes 22 on the vibration of the resonance ring plate 52. Although a small part of the water flows out from the gap, it can still drip on the surface of the heat exchange box 21. The resonance ring plate 52 is provided with a plurality of drainage holes 521 along the circumferential direction, and the position of the drainage holes 521 is lower than the clearance holes 520, so that after the reflux tank body 5 is full of water, it can flow out from the drainage holes 521 to sprinkle water on the surface of the heat exchange box 21.
[0019] Reference Figure 6 and Figure 7 In addition, the resonant ring plate 52 is located at the bottom end of each drain hole 521 and is connected to a guide pipe 53 through a bellows 54. The bellows 54 can be bent freely. The guide pipe 53 is made of hard pipe, and the bottom of the guide pipe 53 is sleeved and glued with an anti-skid sleeve 55. The anti-skid sleeve 55 is made of rubber material to prevent slipping with the heat exchange box 21. In the actual process of spraying water on the outside of the heat exchange box 21, the angle of the guide pipe 53 can be adjusted. For example, all the guide pipes 53 are tilted at the same angle with the axis of the heat exchange box 21 as the center, so that several streams of water can flow downward in a certain spiral direction, so that the outer wall of the heat exchange box 21 is sprayed and cooled more comprehensively, and the path of the water flow is also lengthened, thereby improving the cooling effect.
[0020] Reference Figure 3 , a guide ring plate 25 is provided at the bottom of the heat exchange box 21, and the bottom of the guide ring plate 25 is tilted outward to guide the water on the outer wall of the heat exchange box 21 to fall into the water collecting tank body 4 more accurately. A sedimentation ring plate 42 is suspended and fixed to the inner wall of the water collecting tank body 4 through a support rod, so that a gap is left between the bottom of the sedimentation ring plate 42 and the inner bottom wall of the water collecting tank, and the guide ring plate 25 is located on the outside of the sedimentation ring plate 42. An overflow ring plate 43 is also fixed to the bottom wall of the inner side of the water collecting tank, and the overflow ring plate 43 is located on the inner side of the sedimentation ring plate 42. The guide ring plate 25 guides the water to the outside of the sedimentation ring plate 42 and precipitates, allowing the water to enter the inner side of the overflow ring plate 43 by overflow. A grid pad 44 is also placed at the bottom of the overflow ring plate 43, and the pump body 41 is placed on the grid pad 44 to maximize the cleanliness of the recycled water.
[0021] The implementation principle of this embodiment is: by setting the heat exchange device 2 in the smoke exhaust channel 11, using the multiple heat exchange tubes 22 in the heat exchange box 21 and the spray nozzle to spray and cool down, the smoke is efficiently cooled, and the impact of high-temperature smoke on the subsequent filtering device is reduced. In addition, the adsorption of larger particles of smoke during the spraying process can also reduce the replacement frequency of the subsequent filtering device, enhance reliability and simplify maintenance, and make the entire device more energy-saving, environmentally friendly and efficient.
[0022] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. An energy-saving forging furnace, comprising a furnace body (1) and a smoke exhaust channel (11) connected to the furnace body (1), wherein the smoke exhaust channel (11) is provided with a smoke dust filtering device (3), characterized in that: The smoke exhaust passage (11) is also provided with a heat exchange device (2), and the heat exchange device (2) is located between the furnace body (1) and the smoke filter device (3). The heat exchange device (2) comprises a heat exchange box (21), and the heat exchange box (21) is provided with a smoke inlet (211) and a smoke outlet (212) for being connected in series with the smoke exhaust passage (11). A plurality of heat exchange tubes (22) are arranged inside the heat exchange box (21). The bottom of the heat exchange box (21) is connected to a water collecting tank body (4), and a pump body (41) for supplying liquid to the plurality of heat exchange tubes (22) is arranged inside the water collecting tank body (4).
2. The energy-saving forging furnace according to claim 1, characterized in that: The inner wall of the heat exchange box (21) is provided with a plurality of smoke guide plates (24), and the plurality of smoke guide plates (24) are arranged in a staggered manner so that the path of smoke from the smoke inlet (211) to the smoke outlet (212) is in an "S" shape.
3. The energy-saving forging furnace according to claim 2, characterized in that: The top wall of the smoke guide plate (24) is provided with a baffle (241) along the circumferential direction, and the top wall of the smoke guide plate (24) and the inner wall of the baffle (241) form a water storage area.
4. The energy-saving forging furnace according to claim 3, characterized in that: The water storage area has a concave area (242) and the bottom wall of the smoke guide plate (24) is located near the concave area (242) and is connected to a nozzle (51) through it.
5. The energy-saving forging furnace according to claim 1, characterized in that: The top of the heat exchange box (21) is connected to a reflux tank (5) for receiving liquid sprayed from the top of the falling heat exchange tube (22); the bottom of the reflux tank (5) is connected to a nozzle (51), and the bottom of the nozzle (51) extends into the heat exchange box (21).
6. The energy-saving forging furnace according to claim 5, characterized in that: A resonance ring plate (52) is connected to the opening of the reflux tank body (5), and a plurality of clearance holes (520) for the heat exchange tubes (22) to pass through are provided through the resonance ring plate (52), and the heat exchange tubes (22) are loosely matched with the clearance holes (520).
7. The energy-saving forging furnace according to claim 6, characterized in that: The resonance ring plate (52) is provided with a plurality of drainage holes (521) penetrating therethrough. The plurality of drainage holes (521) are arranged along the circumference of the resonance ring plate (52). The height of the drainage holes (521) is lower than the clearance hole (520).
8. The energy-saving forging furnace according to claim 7, characterized in that: The ports at the bottom ends of the plurality of drainage holes (521) are rotatably connected to a flow guide pipe (53) that is in communication with the drainage hole (521); an anti-slip sleeve (55) is provided at the bottom of the flow guide pipe (53); and the anti-slip sleeve (55) abuts against the top wall of the heat exchange box (21).
9. The energy-saving forging furnace according to claim 1, characterized in that: The inner wall of the water collecting tank body (4) is provided with a sedimentation ring plate (42), a gap is left between the bottom of the sedimentation ring plate (42) and the inner bottom wall of the water collecting tank, the inner bottom wall of the water collecting tank body (4) is provided with an overflow ring plate (43), the overflow ring plate (43) is located on the inner side of the sedimentation ring plate (42), and the pump body (41) is located on the inner side of the overflow ring plate (43).
10. The energy-saving forging furnace according to claim 9, characterized in that: A guide ring plate (25) is arranged at the bottom of the heat exchange box (21), the bottom of the guide ring plate (25) is arranged to be inclined outward, and the bottom of the guide ring plate (25) is located between the sedimentation ring plate (42) and the side wall of the water collecting tank body (4).