Casting furnace with waste heat recovery function

Abstract

The utility model relates to foundry furnace technical field, and disclose a kind of foundry furnaces with waste heat recovery function, including bottom plate, the top of bottom plate is provided with smelting furnace, the outside of smelting furnace is provided with recovery assembly, and the recovery assembly includes: heat exchange component, setting in the outer wall of smelting furnace;Filtering component, setting in one side of heat exchange component;The heat exchange component includes: jacket, fixedly covered in the outer wall of smelting furnace;Protective frame one, setting in one side of jacket;Protective frame two, setting in the other side of jacket.The utility model passes through the structure such as jacket, water cooling pipe in heat exchange component, can sufficiently absorb the waste heat of smelting furnace outer wall emission, after cold water heating, it is delivered to water tank storage;Meanwhile, high-temperature flue gas enters water in water tank after purification, and the waste heat carried by it is further absorbed by water, realizes the double recovery of smelting furnace heat dissipation and flue gas waste heat, effectively improves energy utilization, reduces energy waste.

Description

Technical Field

[0001] This utility model relates to the field of casting furnace technology, specifically a casting furnace with waste heat recovery function. Background Technology

[0002] In the casting production process, the furnace is one of the core pieces of equipment. When it is working, it generates a lot of heat. Not only does the furnace itself emit a lot of waste heat, but the high-temperature flue gas generated during combustion also carries a lot of heat.

[0003] However, existing foundry furnaces often lack effective waste heat recovery mechanisms. Waste heat emitted from the furnace body is directly dissipated into the air, and the heat from the high-temperature flue gas is not fully utilized, resulting in serious energy waste and contradicting the principles of energy conservation and environmental protection. Simultaneously, the high-temperature flue gas generated during furnace operation contains a large amount of dust, metal shavings, and fine particulate matter, which, if directly emitted, would cause significant environmental pollution. The filter media used for flue gas purification in existing equipment requires regular cleaning or replacement after long-term use. However, traditional filter media have complex installation structures, and the disassembly and installation processes are cumbersome and inconvenient. This not only affects the normal operating efficiency of the equipment but also makes it difficult to ensure timely maintenance of the filter media, leading to a gradual decline in filtration efficiency and an inability to consistently meet purification requirements. Utility Model Content

[0004] The purpose of this utility model is to provide a foundry furnace with waste heat recovery function, which solves the technical problem of serious energy waste caused by the lack of an effective waste heat recovery mechanism in existing foundry furnaces, and achieves the purpose of efficiently recovering the waste heat of the furnace body and high-temperature flue gas.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a casting furnace with waste heat recovery function, comprising a bottom plate, a furnace disposed on the top of the bottom plate, and a recovery component disposed outside the furnace, the recovery component comprising: a heat exchange component disposed on the outer wall of the furnace; and a filter component disposed on one side of the heat exchange component.

[0006] Preferably, the heat exchange component includes: a jacket, which is fixedly fitted onto the outer wall of the furnace; a first protective frame, which is disposed on one side of the jacket; and a second protective frame, which is disposed on the other side of the jacket.

[0007] Preferably, water-cooling pipes are evenly arranged inside the jacket. One end of each water-cooling pipe is connected to a connecting pipe, and the other end of the connecting pipe is connected to a connecting vertical pipe. The connecting vertical pipe is located inside the protective frame. A water inlet pipe is connected to the top of the connecting vertical pipe, and the other end of the water inlet pipe penetrates the top of the inner wall of the protective frame and extends to the top of the outer wall of the protective frame.

[0008] Preferably, the other end of the water-cooling pipe is connected to a connecting pipe II, and the other end of the connecting pipe II is connected to a connecting vertical pipe II. The connecting vertical pipe II is located inside the protective frame II. The other side of the connecting vertical pipe II is connected to a water pumping pipe. The other end of the water pumping pipe passes through one side of the inner wall of the protective frame II and extends to one side of the outer wall of the protective frame II, and is connected to a pump. The output end of the pumping pipe is connected to a water outlet pipe.

[0009] Preferably, the filtration component includes: a water tank, disposed on the top of the base plate; a flue pipe, connected to the top of the furnace; and a filter box, disposed on the top of the base plate.

[0010] Preferably, the water tank is connected to the other end of the outlet pipe, the water tank is located on one side of the furnace, the filter box is located between the furnace and the water tank, the other end of the exhaust pipe is connected to the filter box, the other side of the filter box is connected to the exhaust pipe, the other end of the exhaust pipe extends through the top of the water tank and into the interior of the water tank, the top of the water tank is connected to the vent pipe, the side of the water tank is connected to the drain pipe, the middle end of the drain pipe is provided with a valve, the front of the filter box has an opening, the top and bottom of the inner wall of the filter box are respectively fixedly installed with sliding rods, the outer wall of the sliding rods is slidably connected to the mounting plate, and the opposite sides of the mounting plate are symmetrically provided with locking grooves.

[0011] Preferably, the mounting plate is connected to the coarse filter layer and the fine filter layer by a locking groove. An outer plate is fixedly installed on the front of the mounting plate. The outer plate is locked to the filter box through a movable opening. A handle is fixedly installed on the front of the outer plate. A locking frame is fixedly installed on the front of the outer plate. An L-shaped connecting plate is fixedly installed on the top of the filter box. A movable rod is movably sleeved on the top of the L-shaped connecting plate. A limit plate is fixedly installed on the top of the movable rod. A locking block is fixedly installed on the bottom of the movable rod. The locking block is locked to the locking frame. A spring is sleeved on the outer wall of the movable rod. One end of the spring is fixedly connected to the locking block. The other end of the spring is fixedly connected to the L-shaped connecting plate.

[0012] This utility model provides a foundry furnace with waste heat recovery function. It has the following beneficial effects: (1) This utility model can fully absorb the residual heat emitted from the outer wall of the furnace through the structure of the heat exchange component such as the jacket and water cooling pipe, and then heat the cold water and transport it to the water tank for storage; at the same time, the high-temperature flue gas enters the water in the water tank after purification, and the residual heat it carries is further absorbed by the water, realizing the dual recovery of furnace heat dissipation and flue gas residual heat, effectively improving energy utilization and reducing energy waste.

[0013] (2) By setting a sliding rod, the mounting plate of the filter box is slidably connected by the sliding rod, and the outer plate is connected to the filter box by a snap-fit ​​connection. When it is necessary to clean or replace the coarse filter layer and the fine filter layer, simply pull the limiting plate to disengage the snap-fit ​​block from the snap-fit ​​frame, and the mounting plate can be pulled out for operation. During installation, the spring force can also be used to quickly complete the fixing. The operation is convenient and conducive to timely maintenance of the filter material, ensuring a long-term stable filtration effect. Attached Figure Description

[0014] Figure 1 This is a three-dimensional schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the heat exchange component structure of this utility model; Figure 3 This is a cross-sectional view of the filter component structure of this utility model; Figure 4 This utility model Figure 3 A magnified view of A in the middle.

[0015] In the diagram: 1. Base plate; 2. Furnace; 3. Recycling components. 31 Heat exchange components, 311 Jacket, 312 Protective frame one, 313 Protective frame two, 314 Water cooling pipe, 315 Connecting pipe one, 316 Connecting vertical pipe one, 317 Water inlet pipe, 318 Connecting pipe two, 319 Connecting vertical pipe two, 3111 Pumping pipe, 3112 Pump, 3113 Water outlet pipe; 32 Filter components, 321 Water tank, 322 Exhaust pipe I, 323 Filter box, 324 Exhaust pipe II, 325 Air outlet pipe, 326 Drain pipe, 327 Valve, 328 Slide rod, 329 Mounting plate, 3211 Outer plate, 3212 Coarse filter layer, 3213 Fine filter layer, 3214 Clamping frame, 3215 L-shaped connecting plate, 3216 Movable rod, 3217 Clamping block, 3218 Limiting plate, 3219 Spring. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention. Example

[0018] Based on the current problem of serious energy waste caused by the lack of effective waste heat recovery mechanisms in existing foundry furnaces, this utility model provides a preferred embodiment of a foundry furnace with waste heat recovery function, for example... Figure 1-4 As shown: A casting furnace with waste heat recovery function includes a base plate 1, a furnace 2 disposed on top of the base plate 1, and a recovery assembly 3 disposed outside the furnace 2. The recovery assembly 3 includes: a heat exchange component 31 disposed on the outer wall of the furnace 2; and a filter component 32 disposed on one side of the heat exchange component 31. The heat exchange component 31 includes: a jacket 311 fixedly sleeved on the outer wall of the furnace 2; a first protective frame 312 disposed on one side of the jacket 311; and a second protective frame 313 disposed on the other side of the jacket 311. Water-cooled pipes 314 are evenly arranged inside the jacket 311. One end of the water-cooled pipe 314 is connected to a connecting pipe 315, and the other end of the connecting pipe 315 is connected to a connecting vertical pipe 316. The connecting vertical pipe 316 is disposed on the protective frame 311. Inside frame 312, a water inlet pipe 317 is connected to the top of vertical pipe 316. The other end of the water inlet pipe 317 passes through the top of the inner wall of the protective frame 312 and extends to the top of the outer wall of the protective frame 312. The other end of the water cooling pipe 314 is connected to a connecting pipe 318. The other end of the connecting pipe 318 is connected to a connecting vertical pipe 319. The connecting vertical pipe 319 is located inside the protective frame 313. A water pump 3111 is connected to the other side of the connecting vertical pipe 319. The other end of the water pump 3111 passes through one side of the inner wall of the protective frame 313 and extends to one side of the outer wall of the protective frame 313. A pump 3112 is connected to the pump 3112. The output end of the pump 3112 is connected to the water outlet pipe 3113.

[0019] Furthermore, in this embodiment, by setting up a water inlet pipe 317, cold water enters the connecting vertical pipe 316 through the water inlet pipe 317, and is then diverted through the connecting pipe 315 to the water-cooling pipe 314 inside the jacket 311. The water-cooling pipe 314 contacts the outer wall of the furnace 2 and absorbs the residual heat emitted by the furnace body. After being heated, the cold water is collected through the connecting pipe 318 to the connecting vertical pipe 319, and then transported through the pumping pipe 3111 to the water tank 321 for storage under the action of the pumping pump 3112. Example

[0020] Based on Embodiment 1, a preferred embodiment of the casting furnace with waste heat recovery function provided by this utility model is as follows: Figure 1-4As shown: The filter component 32 includes: a water tank 321, disposed on the top of the base plate 1; a flue pipe 322, connected to the top of the furnace 2; and a filter box 323, disposed on the top of the base plate 1. The other end of the water tank 321 is connected to the outlet pipe 3113. The water tank 321 is disposed on one side of the furnace 2, and the filter box 323 is disposed between the furnace 2 and the water tank 321. The other end of the flue pipe 322 is connected to the filter box 323, and the other side of the filter box 323 is connected to a drain pipe. The second exhaust pipe 324 passes through the top of the water tank 321 and extends into the interior of the water tank 321. An exhaust pipe 325 is connected to the top of the water tank 321. A drain pipe 326 is connected to one side of the water tank 321. A valve 327 is installed at the middle of the drain pipe 326. A movable opening is provided on the front of the filter box 323. Slide rods 328 are fixedly installed at the top and bottom of the inner wall of the filter box 323, respectively. An mounting plate is slidably connected to the outer wall of the slide rods 328. 329. A mounting plate 329 has symmetrically arranged engaging grooves on opposite sides. The mounting plate 329 is connected to the coarse filter layer 3212 and the fine filter layer 3213 via these engaging grooves. An outer plate 3211 is fixedly mounted on the front of the mounting plate 329. The outer plate 3211 is engaged with the filter box 323 via a movable opening. A handle is fixedly mounted on the front of the outer plate 3211, and a engaging frame 3214 is fixedly mounted on the front of the outer plate 3211. An L-shaped connecting plate 32 is fixedly mounted on the top of the filter box 323. 15. The top of the L-shaped connecting plate 3215 is movably fitted with a movable rod 3216. The top of the movable rod 3216 is fixedly installed with a limit plate 3218. The bottom of the movable rod 3216 is fixedly installed with a locking block 3217. The locking block 3217 is engaged with the locking frame 3214. The outer wall of the movable rod 3216 is fitted with a spring 3219. One end of the spring 3219 is fixedly connected to the locking block 3217, and the other end of the spring 3219 is fixedly connected to the L-shaped connecting plate 3215.

[0021] Furthermore, in this embodiment, the high-temperature flue gas generated by the operation of the furnace 2 enters the filter box 323 through the exhaust pipe 322 at the top for filtration. The flue gas first passes through the coarse filter layer 3212 on the mounting plate 329, and then continues to flow through the fine filter layer 3213. The purified flue gas enters the water in the water tank 321 through the exhaust pipe 324, and the treated flue gas is discharged through the exhaust pipe 325. The water in the water tank 321, which has absorbed residual heat, can be discharged as needed by opening valve 3. 27. The filter is discharged through the drain pipe 326 for subsequent use. When it is necessary to clean or replace the coarse filter layer 3212 and the fine filter layer 3213, pull the limit plate 3218 upward, which will drive the movable rod 3216 and the locking block 3217 to move upward. The spring 3219 is compressed, which will disengage the locking block 3217 from the locking frame 3214. Then, by pulling the outer plate 3211 with the handle, the mounting plate 329 can be pulled out from the movable port of the filter box 323 along the slide rod 328, and then the operation can be carried out.

[0022] During operation, the heat generated by furnace 2 is used partly for metal melting and partly dissipated outwards through the furnace body. At this time, heat exchange component 31 starts to operate. Cold water enters the connecting vertical pipe 316 through the inlet pipe 317, and is then diverted through the connecting pipe 315 to the water-cooled pipe 314 inside the jacket 311. The water-cooled pipe 314 contacts the outer wall of furnace 2 and absorbs the residual heat dissipated by the furnace body. After being heated, the cold water is collected through the connecting pipe 318 to the connecting vertical pipe 319, and then pumped through the pump 3112. The waste heat generated by the furnace 2 is transported to the water tank 321 via the outlet pipe 3113 for storage, thus realizing the recovery and utilization of the waste heat from the furnace body. Simultaneously, the high-temperature flue gas generated during the operation of the furnace 2 enters the filter box 323 through the top exhaust pipe 322 for filtration. The flue gas first passes through the coarse filter layer 3212 on the mounting plate 329, which intercepts larger dust particles, metal fragments, and other impurities in the flue gas. After coarse filtration, the flue gas continues to flow through the fine filter layer 3213, which further filters out fine dust and particles, thus improving the flue gas quality. The purified flue gas enters the water tank 321 through the exhaust pipe 324. On one hand, the residual heat in the flue gas is absorbed by the water, further increasing the water temperature; on the other hand, the water also further purifies the flue gas. Finally, the treated flue gas is discharged through the exhaust pipe 325, while the water in the tank 321, having absorbed residual heat, can be discharged through the drain pipe 326 by opening valve 327 for subsequent use. When it is necessary to clean or replace the coarse filter layer 3212 and the fine filter layer 3213, pull the limit plate 321 upwards. 8. Move the movable rod 3216 and the locking block 3217 upwards, compress the spring 3219, and disengage the locking block 3217 from the locking frame 3214. Then, pull the outer plate 3211 by the handle to pull the mounting plate 329 out of the movable opening of the filter box 323 along the slide rod 328, and you can start the operation. During installation, insert the mounting plate 329 into the filter box 323, release the limiting plate 3218, and under the elastic force of the spring 3219, the locking block 3217 engages with the locking frame 3214 to complete the fixation.

[0023] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A casting furnace with waste heat recovery function, comprising a bottom plate (1), characterized in that: A furnace (2) is provided on the top of the base plate (1), and a recycling component (3) is provided on the outside of the furnace (2). The recycling component (3) includes: The heat exchange component (31) is installed on the outer wall of the furnace (2); A filter element (32) is disposed on one side of the heat exchange element (31); The heat exchange component (31) includes: The jacket (311) is fixedly fitted onto the outer wall of the furnace (2); The protective frame (312) is set on one side of the sleeve (311); The second protective frame (313) is located on the other side of the sleeve (311); The jacket (311) is uniformly provided with water cooling pipes (314). One end of the water cooling pipe (314) is connected to a connecting pipe (315). The other end of the connecting pipe (315) is connected to a connecting vertical pipe (316). The connecting vertical pipe (316) is located inside the protective frame (312). The top end of the connecting vertical pipe (316) is connected to a water inlet pipe (317). The other end of the water inlet pipe (317) penetrates the top of the inner wall of the protective frame (312) and extends to the top of the outer wall of the protective frame (312).

2. A casting furnace with waste heat recovery function according to claim 1, characterized in that: The other end of the water cooling pipe (314) is connected to a connecting pipe two (318), and the other end of the connecting pipe two (318) is connected to a connecting vertical pipe two (319). The connecting vertical pipe two (319) is located inside the protective frame two (313). The other side of the connecting vertical pipe two (319) is connected to a water pumping pipe (3111). The other end of the water pumping pipe (3111) penetrates one side of the inner wall of the protective frame two (313) and extends to one side of the outer wall of the protective frame two (313), and is connected to a pump (3112). The output end of the pump (3112) is connected to a water outlet pipe (3113).

3. A casting furnace with waste heat recovery function according to claim 1, characterized in that: The filter element (32) includes: Water tank (321) is located on top of base plate (1); Exhaust pipe 1 (322) is connected to the top of the furnace (2); The filter box (323) is located on top of the base plate (1).

4. A casting furnace with waste heat recovery function according to claim 3, characterized in that: The water tank (321) is connected to the other end of the outlet pipe (3113). The water tank (321) is located on one side of the furnace (2). The filter box (323) is located between the furnace (2) and the water tank (321). The other end of the exhaust pipe (322) is connected to the filter box (323). The other side of the filter box (323) is connected to the exhaust pipe (324). The other end of the exhaust pipe (324) passes through the top of the water tank (321) and extends into the interior of the water tank (321). A vent pipe (325) is connected to the top of the water tank (321), and a drain pipe (326) is connected to one side of the water tank (321). A valve (327) is provided at the middle end of the drain pipe (326). An movable opening is provided on the front of the filter box (323). A slide rod (328) is fixedly installed on the top and bottom of the inner wall of the filter box (323). An mounting plate (329) is slidably connected to the outer wall of the slide rod (328). A locking groove is symmetrically provided on the opposite side of the mounting plate (329).

5. A casting furnace with waste heat recovery function according to claim 4, characterized in that: The mounting plate (329) is connected to the coarse filter layer (3212) and the fine filter layer (3213) by a snap-fit ​​groove. An outer plate (3211) is fixedly installed on the front of the mounting plate (329). The outer plate (3211) is snap-fitted to the filter box (323) through a movable opening. A handle is fixedly installed on the front of the outer plate (3211). A snap-fit ​​frame (3214) is fixedly installed on the front of the outer plate (3211). An L-shaped connecting plate (3215) is fixedly installed on the top of the filter box (323). The top of the movable rod (3216) is movably fitted with a movable rod (3216), the top of the movable rod (3216) is fixedly fitted with a limit plate (3218), the bottom of the movable rod (3216) is fixedly fitted with a locking block (3217), the locking block (3217) is locked and connected with the locking frame (3214), the outer wall of the movable rod (3216) is fitted with a spring (3219), one end of the spring (3219) is fixedly connected with the locking block (3217), and the other end of the spring (3219) is fixedly connected with the L-shaped connecting plate (3215).

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