Forging piece heating device with waste heat utilization function and using method of forging piece heating device

Abstract

The invention discloses a forge piece heating device with a waste heat utilization function and a using method thereof, and relates to the field of forge piece heating, and the technical scheme is characterized in that the forge piece heating device comprises a heating box, and a heating cavity used for containing a forge piece and heating the forge piece is formed in the heating box; the heat pipe type waste heat recoverer is fixed to the back of the heating box in an embedded mode, the heat exchange contact face of the heat pipe type waste heat recoverer is attached to the inner wall of the heating cavity, one end of a pipe body, located outside the heating box, of the heat pipe type waste heat recoverer communicates with an air inlet pipe used for introducing cold air, and the other end of the pipe body communicates with a connecting pipe; the heat pipe type waste heat recovery device has the advantages that cavity wall waste heat, equipment heat dissipation and part of smoke heat which are originally dissipated into the environment are efficiently recovered through the embedded design of the heat pipe type waste heat recovery device, and then hot air obtained after heat exchange flows back to the heating cavity through the draught fan A and the connecting pipe to be reused.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of forging heating, more particularly, it relates to a forging heating device with waste heat utilization and a using method thereof. BACKGROUND

[0002] In the forging production and processing process, heating is a crucial preliminary process, by heating the metal blank, the deformation resistance can be reduced, the plasticity is improved, and the subsequent forging process can be carried out smoothly.

[0003] When the existing heating device heats the internal forging, a large amount of waste heat will be generated along with the cavity wall, and the high-temperature flue gas after heating or the surface heat dissipation of the equipment will also carry a large amount of heat. The existing conventional forging heating device mostly does not effectively recycle and utilize these waste heat, but allows the waste heat to directly dissipate to the surrounding environment, which not only causes serious waste of energy, increases the production cost of forging heating, but also is difficult to further improve the overall thermal efficiency of the heating device.

[0004] Therefore, in order to solve the above technical problems, the present application provides a forging heating device with waste heat utilization and a using method thereof. SUMMARY

[0005] In view of the deficiencies of the prior art, the purpose of the present application is to provide a forging heating device with waste heat utilization and a using method thereof.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a forging heating device with waste heat utilization, comprising:

[0007] A heating box, the inside of the heating box forms a heating cavity for accommodating and heating forgings;

[0008] A heat pipe type waste heat recovery device is fixedly embedded at the back of the heating box, the heat exchange contact surface of the heat pipe type waste heat recovery device is attached to the inner wall of the heating cavity, one end of the pipe body of the heat pipe type waste heat recovery device located outside the heating box is communicated with an air inlet pipe for introducing cold air, the other end is communicated with a connecting pipe, the end of the connecting pipe away from the heat pipe type waste heat recovery device is communicated with the bottom of the heating box, so as to deliver the hot air after heat exchange into the heating cavity, a fan A is installed on the air inlet pipe;

[0009] A heating component is installed on the inner side wall of the heating box.

[0010] Preferably, a push-pull type box door is installed on the surface of the heating box, a forging placing groove seat is installed on the surface of the box door facing the heating box, for placing a plurality of forgings, the forging placing groove seat is made of high-temperature resistant metal mesh material, and the heating component comprises a plurality of heating rods for providing heating heat source.

[0011] Preferably, a plurality of fans B are installed inside the heating box to facilitate air circulation inside the heating box and achieve uniform temperature distribution inside the heating cavity.

[0012] Preferably, an exhaust pipe is installed at the top center of the heating box.

[0013] Preferably, guide rails A for sliding the sliding blocks A are installed on both sides of the heating box, and the surface of the sliding blocks A is connected to the door of the heating box through a connecting rod.

[0014] Preferably, protrusions are fixedly connected to both sides of the door of the heating box, and recessed seats for inserting the protrusions are fixedly connected to both sides of the heating box, screw holes A are formed in the surface of the protrusions, and through holes A are formed in the surface of the recessed seats.

[0015] Preferably, guide rails B for sliding the sliding blocks B are fixedly connected to the rear part of the side surface of the heating box, a bearing is fixedly connected to the surface of the sliding blocks B, a rotating rod is fixedly connected to the inner ring part of the bearing, a screw rod capable of passing through the through holes A and being screwed into the screw holes A is fixedly connected to one end of the rotating rod, and a handle is fixedly connected to the other end of the rotating rod.

[0016] Preferably, the bottom end of the heating box is connected to the cast iron counterweight base through a plurality of vertical rods, the vertical rods include outer rods connected to the top of the cast iron counterweight base and inner rods connected to the bottom of the heating box, the inner rods slide along the inner part of the outer rods, a plurality of screw holes B are vertically arranged on the surface of the inner rods, through holes B are formed in the surface of the outer rods near the top part, and the height of the heating box is fixed by screwing screws through the through holes B into the corresponding screw holes B.

[0017] Preferably, a high-temperature-resistant thermal insulation layer is arranged on the inner wall of the heating cavity, the thermal insulation layer is made of aluminum silicate fiber material, and the thermal insulation layer is provided with an adaptive gap at a position corresponding to the heat exchange contact surface of the heat pipe type waste heat recovery device.

[0018] The method for using the above-mentioned waste heat utilization forging heating device includes the following steps:

[0019] Step one: adjust the height of the heating box according to actual operation requirements (such as matching the height of the conveying line, facilitating the operation personnel to take and place the forgings). Remove the fixing screws on the vertical rods, pull the inner rods to slide up and down along the outer rods, adjust the heating box to the appropriate height from the ground, screw the screws through the through holes B of the outer rods into the screw holes B of the corresponding height of the inner rods, complete the fixing of the height of the heating box, and ensure the overall stability of the device with the cast iron counterweight base.

[0020] Step two: open the push-pull box door, reverse rotation handle on the back of the groove seat, drive the rotating rod to drive the screw to rotate out of the protrusion screw hole A, along the guide rail B sliding block B, make the screw disengaged from the through hole A of the groove seat, pull the box door, through the connecting rod drive sliding block A along the guide rail A on both sides of the heating box sliding, completely pull open the box door;

[0021] Step three: the multiple forgings to be heated are regularly placed in the forging placing groove seat on the inside of the box door, after placing, push the box door, through the sliding block A along the guide rail A, push the forging placing groove seat into the heating cavity of the heating box, at the same time, make the box door close the surface opening of the heating box, at this time, the protrusions on both sides of the box door are inserted into the groove seats on both sides of the heating box, realize the preliminary positioning;

[0022] Step four: along the guide rail B sliding block B, drive the bearing, rotating rod and screw to move, make the screw pass through the through hole A of the groove seat, align the screw hole A of the protrusion, rotate the handle to drive the rotating rod, through the rotating action of the bearing, screw with screw hole A is screwed tightly, all the screws are screwed into the corresponding screw hole, complete the firm fixation of the box door and the heating box;

[0023] Step five: connect the power supply of the heating component, make the several heating rods electrify and heat, release heat to the heating cavity, heat the forgings in the forging placing groove seat, at the same time, start the fan A on the air inlet pipe and the multiple fans B in the heating box;

[0024] During the heating process, the residual heat generated by the heating cavity wall, the heat dissipation of the heating box back and part of the high-temperature flue gas dissipation heat are quickly captured and absorbed by the heat pipe type waste heat recovery device embedded in the back of the heating box, the heat is conducted to the pipe body outside the heating box through the heat pipe inside the heating box, the fan A continuously inhales the external cold air into the pipe body outside the heat pipe, the cold air is fully heat exchanged with the residual heat in the pipe body to form hot air, which is transported to the bottom of the heating box through the connecting pipe and sent into the heating cavity, which realizes the waste heat recycling of the heating rod;

[0025] The fan B accelerates the air flow in the heating cavity, promotes the rapid diffusion of the heat exchanged hot air to the whole heating cavity, at the same time, makes the heat generated by the heating rod evenly distributed, avoids the local temperature difference anomaly, guarantees that all forgings are heated evenly, the high-temperature flue gas generated by heating is gathered in the upper part of the heating cavity, slowly discharged through the exhaust pipe in the center of the top, maintains the stable air pressure in the heating cavity, ensures the heating effect.

[0026] Compared with the prior art, the present application has the following beneficial effects:

[0027] 1、The present application recovers the cavity wall residual heat, equipment heat dissipation and part of the flue gas heat which will be lost to the environment through the embedded design of the heat pipe type waste heat recovery device, and then returns the heat exchanged hot air to the heating cavity through the fan A and the connecting pipe for repeated use, effectively solves the problems of waste heat waste, large energy consumption and low thermal efficiency of the existing heating device.

[0028] 2、The high-temperature-resistant heat preservation layer of the aluminum silicate fiber material is attached to the inner wall of the heating cavity, which can greatly reduce the heat loss of the heating cavity to the outside, and reduce the energy consumption of the heating part;

[0029] 3、The vertical rod adopts a sliding fit structure of an outer rod and an inner rod, and is fixed by a screw passing through the through hole B of the outer rod and the screw holes B of different heights of the inner rod, so that the ground clearance of the heating box can be flexibly adjusted to adapt to the use requirements in different operation scenes;

[0030] 4、The fan B can accelerate the air flow in the heating cavity, promote the hot air sent into the bottom of the heating cavity after heat exchange of the heat pipe type waste heat recovery device to quickly spread to the whole heating cavity, and make the heat generated by the heating rod evenly distributed, so that local high-temperature or low-temperature areas in the heating cavity are avoided, the heating quality of the forgings in the forging placing groove is guaranteed, and the heating time of the forgings is shortened, and the production efficiency is improved;

[0031] 5、The screw rod, the rotating rod, the bearing and the sliding block B form an integrated connection structure with the guide rail B and the groove seat, the screw rod cannot be completely separated from the device main body, after the fixing operation is completed, the screw rod is still hung on the guide rail B together with the sliding block B and the rotating rod, and the situation that the traditional screw is lost due to random placement after disassembly is avoided, the fastener loss is effectively avoided, and the step of finding a matching screw during fixing each time is saved. BRIEF DESCRIPTION OF DRAWINGS

[0032] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, and the schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0033] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0034] Figure 2 It is a schematic diagram of the specific structure of the side of the present application;

[0035] Figure 3 It is a schematic diagram of the specific structure of the bottom of the present application; Figure 2

[0036] Figure 4 It is a schematic diagram of the specific structure of the bottom of the present application;

[0037] Figure 5 It is a schematic diagram of the specific structure of the bottom of the present application;

[0038] Figure 6 It is a schematic diagram of the specific structure of the bottom of the present application; ​

[0039] Figure 7 Figure is a schematic diagram of the bearing connection structure in the application.

[0040] In the figure: 1, heating box; 101, heating cavity; 2, heat pipe type waste heat recovery device; 3, air inlet pipe; 4, connecting pipe; 5, heating component; 501, heating rod; 6, fan A; 7, box door; 8, forging placement groove; 9, guide rail A; 10, sliding block A; 11, protruding block; 1101, screw hole A; 12, groove seat; 1201, through hole A; 13, guide rail B; 14, sliding block B; 15, bearing; 16, rotating rod; 17, screw rod; 18, handle; 19, vertical rod; 1901, outer rod; 19011, through hole B; 1902, inner rod; 19021, screw hole B; 20, cast iron counterweight base; 21, connecting rod; 22, air outlet pipe; 23, fan B. DETAILED DESCRIPTION

[0041] Example 1

[0042] As shown in Figure 1 , Figure 2 , Figure 4 and Figure 5 , the application provides a forging heating device with waste heat utilization. A heating box 1 is internally formed with a heating cavity 101 for accommodating and heating forgings. An air outlet pipe 22 is installed at the top center of the heating box 1.

[0043] A heat pipe type waste heat recovery device 2 is embeddedly fixed at the back of the heating box 1. The heat exchange contact surface of the heat pipe type waste heat recovery device 2 is attached to the inner wall of the heating cavity 101. One end of the pipe body of the heat pipe type waste heat recovery device 2 located outside the heating box 1 is communicated with an air inlet pipe 3 for introducing cold air, and the other end is communicated with a connecting pipe 4. The end of the connecting pipe 4 away from the heat pipe type waste heat recovery device 2 is communicated with the bottom of the heating box 1, so as to deliver the heat-exchanged hot air into the heating cavity 101. A fan A 6 is installed on the air inlet pipe 3.

[0044] A heating component 5 is installed on the inner side wall of the heating box 1. The heating component 5 includes a plurality of heating rods 501 for providing heating heat sources.

[0045] When the several heating rods 501 of the heating component 5 are electrified, heat is released into the heating cavity 101 of the heating box 1, and the forging placed in the heating cavity 101 is heated. During the heating process, a large amount of waste heat is generated on the cavity wall of the heating cavity 101, and at the same time, high-temperature flue gas generated by heating is gathered at the upper part of the heating cavity 101 and slowly discharged through the exhaust pipe 22, and the back and periphery of the heating box 1 are also accompanied by surface heat dissipation of the equipment. Since the heat pipe type waste heat recovery device 2 is embeddedly fixed on the back of the heating box 1, and the heat exchange contact surface thereof is tightly attached to the inner wall of the heating cavity 101, the waste heat of the cavity wall of the heating cavity 101, the heat dissipation of the back of the heating box 1 and the heat of the partial high-temperature flue gas dissipation can be quickly captured and absorbed, and the heat is transmitted to the pipe body outside the heating box 1 through the heat conduction characteristics inside the heat pipe type waste heat recovery device 2. The fan A6 on the air inlet pipe 3 is started, and the fan A6 continuously inhales external cold air to the pipe body outside the heat pipe type waste heat recovery device 2 by acting on the air inlet pipe 3. After the cold air is fully heat exchanged with the waste heat in the pipe body, the cold air is heated to form hot air, and the heated hot air is transported to the bottom of the heating box 1 through the connecting pipe 4 and is sent into the heating cavity 101, thereby assisting the heating rod 501 to heat the forging, and realizing the recycling of waste heat. The structure efficiently recovers the cavity wall waste heat, equipment heat dissipation and partial flue gas heat which would be lost to the environment through the embedded design of the heat pipe type waste heat recovery device 2, and then the hot air after heat exchange is returned to the heating cavity 101 through the fan A6 and the connecting pipe 4 for repeated use, thereby effectively solving the problems of waste heat waste, large energy consumption and low thermal efficiency of the existing heating device. At the same time, the exhaust pipe 22 can ensure the stability of the air pressure in the heating cavity 101, and avoid the influence of high-temperature flue gas retention on the heating effect.

[0046] Furthermore, first, a high-temperature resistant insulation layer is attached to the inner wall of the heating cavity 101, the insulation layer is made of aluminum silicate fiber material, and an adaptive notch is provided on the position of the heat exchange contact surface of the heat pipe type waste heat recovery device 2. The high-temperature resistant insulation layer made of aluminum silicate fiber material is attached to the inner wall of the heating cavity 101, which can greatly reduce the heat loss of the heating cavity 101 to the outside, and reduce the energy consumption of the heating component 5.

[0047] Secondly, the bottom end of the heating box 1 is connected with the cast iron counterweight base 20 through a plurality of vertical rods 19, the vertical rod 19 includes an outer rod 1901 connected with the top of the cast iron counterweight base 20, and an inner rod 1902 connected with the bottom of the heating box 1, the inner rod 1902 slides along the inside of the outer rod 1901, the surface of the inner rod 1902 is vertically arrayed with a plurality of screw holes B19021, the surface of the outer rod 1901 is provided with a through hole B19011 near the top, in use, first pull the inner rod 1902 to move up and down along the outer rod 1901, adjust the heating box 1 to the appropriate height, then fix the height of the heating box 1 by the way that the screw is installed into the corresponding position of the screw hole B19021 through the through hole B19011, only need to disassemble the screw on the vertical rod 19, then adjust the height of the heating box 1, the cast iron counterweight base 20 itself has large weight, which can significantly enhance the overall stability of the device, avoid the heating box 1 from falling due to vibration or external force collision in the working process; and the vertical rod 19 adopts the sliding fit structure of the outer rod 1901 and the inner rod 1902, and is fixed by the screw passing through the through hole B19011 of the outer rod 1901 and the screw holes B19021 of the inner rod 1902 at different heights, which can flexibly adjust the ground clearance of the heating box 1, adapt to the use requirements in different operation scenes (such as matching different height conveying lines, facilitating the operation personnel to take and place the forgings).

[0048] Finally, a plurality of fans B23 are installed in the heating box 1, the fan B23 can accelerate the air flow in the heating cavity 101, promote the hot air sent into the bottom of the heating cavity 101 after heat exchange of the heat pipe type waste heat recovery device 2 to quickly spread to the whole heating cavity 101, and make the heat generated by the heating rod 501 evenly distributed, avoid the local high temperature or low temperature area in the heating cavity 101, protect all the forgings in the forging placing groove 8 from being heated evenly, and improve the forging heating quality; in addition, the rapid circulation of air can also speed up the heat transfer speed on the surface of the forgings, shorten the heating time of the forgings, and improve the production efficiency.

[0049] Embodiment 2

[0050] As shown in Figure 1 - Figure 3 , Figure 6 and Figure 7 , this embodiment supplements the structure of the heating box 1 on the basis of the embodiment: the surface of the heating box 1 is installed with a push-pull box door 7, the surface of the box door 7 towards the heating box 1 is installed with a forging placing groove 8 for placing a plurality of forgings, the forging placing groove 8 is made of high-temperature-resistant metal mesh material, the heating component 5 includes a plurality of heating rods 501 for providing heating heat source, and the specific structure of the push-pull is as follows: the two sides of the heating box 1 are installed with guide rails A9 for sliding of sliding blocks A10, the surface of the sliding block A10 is connected with the box door 7 through a connecting rod 21.

[0051] When the door 7 is opened and closed, the slider A10 will slide along the guide rails A9 on both sides of the heating box 1 via the connecting rod 21. Compared with the traditional hinged door 7, it is not only convenient and labor-saving to open and close, but also avoids occupying the operating space on both sides when the door 7 is opened, which is suitable for the compact working environment of the workshop. The forging placement slot 8 on the inside of the door 7 can realize the neat placement of multiple forgings (after being placed, push the door 7 to push the forging placement slot 8 into the heating chamber 101 of the heating box 1, and at the same time, the door 7 closes the opening on the surface of the heating box 1), which facilitates batch heating and improves processing efficiency. Moreover, its high-temperature resistant metal mesh material can withstand the high temperature environment inside the heating chamber 101 and is not easily deformed or damaged. It can also ensure that the heat penetrates the mesh and acts evenly on the surface of the forging, avoiding uneven heating of the forging.

[0052] Meanwhile, this embodiment also provides a fixing structure between the door 7 and the heating box 1: both sides of the door 7 facing the heating box 1 are fixedly connected with protrusions 11, both sides of the heating box 1 are fixedly connected with groove seats 12 for the protrusions 11 to be inserted, the surface of the protrusions 11 is provided with screw holes A1101, the surface of the groove seats 12 is provided with through holes A1201, the side of the heating box 1 located behind the groove seats 12 is fixedly connected with guide rails B13 for sliding sliders B14, and the surface of sliders B14 is fixedly connected with bearings 15, the inner ring of the bearings 15 is fixedly connected with a rotating rod 16, one end of the rotating rod 16 is fixedly connected with a screw rod 17 that can pass through the through hole A1201 and be threadedly connected to the screw hole A1101, and the other end of the rotating rod 16 is fixedly connected with a handle 18.

[0053] The closing and fixing operation of the box door 7 is as follows: the box door 7 is pushed, the sliding block A10 is driven to slide along the guide rail A9 through the connecting rod 21, the forging piece placing groove seat 8 on the inner side of the box door 7 is pushed into the heating cavity 101 of the heating box 1, meanwhile, the surface opening of the heating box 1 is closed by the box door 7, at this time, the protrusions 11 on both sides of the box door 7 are just inserted into the recess groove seats 12 on both sides of the heating box 1, preliminary positioning is realized; then, the sliding block B14 is slid along the guide rail B13, the bearing 15, the rotating rod 16 and the screw rod 17 are driven to move, the screw rod 17 is in contact with the opening part of the screw hole A1101 of the protrusion 11 through the through hole A1201 of the recess groove seat 12, then, the handle 18 is rotated to drive the rotating rod 16 to drive the inner ring of the bearing 15 to rotate (the inner ring of the bearing 15 rotates along the outer ring), so that the screw rod 17 is screwed with the screw hole A1101 (preferably, all the screw rods 17 are screwed into the corresponding screw holes A1101), the firm fixing of the box door 7 and the heating box 1 is completed; when the fixing is released, the handle 18 is reversely rotated to make the screw rod 17 rotate out of the screw hole A1101, the sliding block B14 is slid along the guide rail B13 to drive the screw rod 17 to be separated from the through hole A1201, the box door 7 can be pulled, the box door 7 is opened by sliding the sliding block A10 along the guide rail A9, the whole operation is convenient, meanwhile, the screw rod 17, the rotating rod 16, the bearing 15 and the sliding block B14 of the structure form an integrated connection structure through the guide rail B13 and the recess groove seat 12, the screw rod 17 will not be completely separated from the device main body, after the releasing operation is completed, the screw rod 17 is still hung on the guide rail B13 together with the sliding block B14 and the rotating rod 16, the traditional screw will not be lost due to random placement after disassembly, the loss of fasteners is effectively avoided, meanwhile, the step of finding matching screws every time is saved, the operation efficiency of the opening and closing and fixing of the box door 7 is further improved.

[0054] The application also provides a use method of the forging heating device with waste heat utilization.

[0055] Step one: according to the actual operation requirement (such as matching the height of the conveying line, facilitating the operator to take and place the forging piece), the height of the heating box 1 is adjusted. The fixing screws on the vertical rod 19 are disassembled, the inner rod 1902 is pulled to slide along the outer rod 1901, the heating box 1 is adjusted to the appropriate height from the ground, then the screws are passed through the through hole B19011 of the outer rod 1901 and screwed into the screw hole B19021 of the inner rod 1902 at the corresponding height, the height fixing of the heating box 1 is completed, and the cast iron counterweight base 20 is used to ensure the stability of the whole device;

[0056] Step two: the push-pull box door 7 is opened, the handle 18 at the back of the recess groove seat 12 is reversely rotated to drive the rotating rod 16 to drive the screw rod 17 to rotate out of the screw hole A1101 of the protrusion 11, the sliding block B14 is slid along the guide rail B13 to make the screw rod 17 separate from the through hole A1201 of the recess groove seat 12, the box door 7 is pulled, the sliding block A10 is driven to slide along the guide rail A9 of both sides of the heating box 1 through the connecting rod 21, the box door 7 is completely pulled open.

[0057] Step three: the multiple forgings to be heated are regularly placed in the forging placing groove seat 8 inside the box door 7, after the placing is completed, the box door 7 is pushed, the forging placing groove seat 8 is pushed into the heating cavity 101 of the heating box 1 through the sliding of the sliding block A10 along the guide rail A9, and the box door 7 is closed to the surface opening of the heating box 1 at the same time, at this time, the protrusions 11 on both sides of the box door 7 are just inserted into the recess groove seat 12 on both sides of the heating box 1, and the preliminary positioning is realized;

[0058] Step four: the sliding block B14 is slid along the guide rail B13, the bearing 15, the rotating rod 16 and the screw rod 17 are moved, the screw rod 17 passes through the through hole A1201 of the recess groove seat 12, is aligned with the screw hole A1101 of the protrusion 11, the handle 18 is rotated to drive the rotating rod 16, the screw rod 17 is screwed with the screw hole A1101 through the rotating action of the bearing 15, all the screw rods 17 are screwed into the corresponding screw holes, and the firm fixing of the box door 7 and the heating box 1 is completed;

[0059] Step five: the power supply of the heating part 5 is connected, the several heating rods 501 are powered to generate heat, heat is released into the heating cavity 101, the forgings in the forging placing groove seat 8 are heated, the fan A6 on the air inlet pipe 3 and the multiple fans B23 in the heating box 1 are started at the same time;

[0060] During the heating process, the residual heat generated by the cavity wall of the heating cavity 101, the heat dissipation of the back of the heating box 1 and the heat of the partial high-temperature flue gas dissipation are quickly captured and absorbed through the heat pipe type residual heat recovery device 2 embedded in the back of the heating box 1, the heat is conducted to the pipe body outside the heating box 1 through the heat pipe inside, the fan A6 continuously inhales the external cold air into the pipe body outside the heat pipe, the cold air is fully heat-exchanged with the residual heat in the pipe body and is heated to form hot air, the hot air is transported to the bottom of the heating box 1 through the connecting pipe 4 and is sent into the heating cavity 101, and the residual heat recycling is realized by the heating rod 501;

[0061] The fan B23 accelerates the air flow in the heating cavity 101, promotes the rapid diffusion of the heat-exchanged hot air to the whole heating cavity 101, uniformly distributes the heat generated by the heating rod 501, avoids the local temperature difference anomaly, guarantees that all the forgings are heated uniformly, the high-temperature flue gas generated by heating is gathered in the upper part of the heating cavity 101, is slowly discharged through the exhaust pipe 22 at the top center, the air pressure in the heating cavity 101 is stabilized, and the heating effect is ensured.

[0062] The forging heating device with residual heat utilization and the using method thereof have the following advantages:

[0063] The cavity wall waste heat, equipment heat dissipation and part of flue gas heat which would be lost to the environment are recovered efficiently through the embedded design of the heat pipe type waste heat recovery device 2, and then the heat exchanged hot air is returned to the heating cavity 101 by the fan A6 and the connecting pipe 4 for repeated use, effectively solving the problems of waste of waste heat, large energy consumption and low thermal efficiency of the existing heating device;

[0064] The high-temperature-resistant insulation layer made of aluminum silicate fiber material is attached to the inner wall of the heating cavity 101, which can greatly reduce the heat loss of the heating cavity 101 to the outside, and reduce the energy consumption of the heating component 5;

[0065] The vertical rod 19 adopts a sliding fit structure of the outer rod 1901 and the inner rod 1902, and is fixed by a screw passing through the through hole B19011 of the outer rod 1901 and the screw holes B19021 of the inner rod 1902 at different heights, so that the ground clearance of the heating box 1 can be flexibly adjusted to adapt to the use requirements in different operation scenarios.

[0066] The fan B23 can accelerate the air flow in the heating cavity 101, so that the hot air sent into the bottom of the heating cavity 101 by the heat pipe type waste heat recovery device 2 after heat exchange can quickly spread to the entire heating cavity 101, and the heat generated by the heating rod 501 can be evenly distributed, avoiding the occurrence of local high-temperature or low-temperature areas in the heating cavity 101, ensuring that all forgings in the forging placing groove 8 are evenly heated, and improving the heating quality of the forgings. In addition, the rapid circulation of air can also accelerate the heat transfer speed on the surface of the forgings, shorten the heating time of the forgings, and improve the production efficiency.

[0067] The screw rod 17, the rotating rod 16, the bearing 15 and the sliding block B14 form an integrated connection structure through the guide rail B13 and the groove seat 12, so that the screw rod 17 will not be completely separated from the device main body. After completing the dismounting operation, the screw rod 17 still hangs on the guide rail B13 together with the sliding block B14 and the rotating rod 16, and will not be lost due to random placement after dismounting as in the traditional screw, effectively avoiding the loss of fasteners, and also saving the step of finding matching screws every time.

[0068] The above is only a preferred embodiment of the present application, and does not limit the present application in any form; any ordinary skilled person in the industry can easily implement the present application according to the drawings and the above description; however, any equivalent changes, modifications and evolution made by those skilled in the art without departing from the scope of the technical solutions of the present application, using the technical content disclosed above, are equivalent embodiments of the present application; at the same time, any equivalent changes, modifications and evolution of the above embodiments according to the essential technology of the present application are still within the protection scope of the technical solutions of the present application.

Claims

1. A forging heating device with waste heat utilization, comprising: Heating box (1), wherein a heating cavity (101) is formed inside the heating box (1) for accommodating and heating the forging; A heat pipe waste heat recovery unit (2) is embedded and fixed on the back of the heating box (1). The heat exchange contact surface of the heat pipe waste heat recovery unit (2) is attached to the inner wall of the heating chamber (101). One end of the tube of the heat pipe waste heat recovery unit (2) located outside the heating box (1) is connected to an air inlet pipe (3) for introducing cold air, and the other end is connected to a connecting pipe (4). The end of the connecting pipe (4) away from the heat pipe waste heat recovery unit (2) is connected to the bottom of the heating box (1) to deliver the hot air after heat exchange to the heating chamber (101). A fan A (6) is installed on the air inlet pipe (3). Heating component (5) is installed on the inner wall of the heating box (1).

2. The forging heating device with waste heat utilization according to claim 1, characterized in that: The surface of the heating box (1) is equipped with a sliding door (7). A forging placement slot (8) is installed on the side of the door (7) facing the heating box (1) for placing multiple forgings. The forging placement slot (8) is made of high-temperature resistant metal mesh material. The heating component (5) includes several heating rods (501) for providing a heat source.

3. The forging heating device with waste heat utilization according to claim 1, characterized in that: The heating box (1) is equipped with multiple fans B (23) to promote air circulation inside the heating box (1) and achieve uniform temperature distribution inside the heating chamber (101).

4. A forging heating device with waste heat utilization according to claim 1, characterized in that: An exhaust pipe (22) is installed at the top center of the heating box (1).

5. A forging heating device with waste heat utilization according to claim 1, characterized in that: The heating box (1) is equipped with guide rails A (9) on both sides for sliding slider A (10). The surface of slider A (10) is connected to the box door (7) through connecting rod (21).

6. A forging heating device with waste heat utilization according to claim 1, characterized in that: The door (7) is fixedly connected to protrusions (11) on both sides facing the heating box (1). The heating box (1) is fixedly connected to groove seats (12) for the protrusions (11) to be inserted on both sides. The surface of the protrusions (11) is provided with screw holes A (1101), and the surface of the groove seats (12) is provided with through holes A (1201).

7. A forging heating device with waste heat utilization according to claim 6, characterized in that: The side of the heating box (1) is fixedly connected to the guide rail B (13) for sliding the slider B (14) at the rear of the groove seat (12). The surface of the slider B (14) is fixedly connected to the bearing (15). The inner ring of the bearing (15) is fixedly connected to the rotating rod (16). One end of the rotating rod (16) is fixedly connected to the screw rod (17) that can pass through the through hole A (1201) and be threadedly connected to the screw hole A (1101). The other end of the rotating rod (16) is fixedly connected to the handle (18).

8. A forging heating device with waste heat utilization according to claim 1, characterized in that: The bottom of the heating box (1) is connected to the cast iron counterweight base (20) by multiple vertical rods (19). The vertical rods (19) include an outer rod (1901) connected to the top of the cast iron counterweight base (20) and an inner rod (1902) connected to the bottom of the heating box (1). The inner rod (1902) slides along the inside of the outer rod (1901). The surface of the inner rod (1902) has multiple screw holes B (19021) arranged in a vertical array. The surface of the outer rod (1901) near the top has a through hole B (19011). The height of the heating box (1) is fixed by screws passing through the through hole B (19011) and being installed into the corresponding screw hole B (19021).

9. A forging heating device with waste heat utilization according to claim 1, characterized in that: The inner wall of the heating chamber (101) is fitted with a high-temperature resistant insulation layer, which is made of aluminum silicate fiber material, and the insulation layer has an adaptation notch at the position corresponding to the heat exchange contact surface of the heat pipe waste heat recovery device (2).

10. A method of using the forging heating device with waste heat utilization according to any one of claims 1-9, characterized in that: Includes the following steps: Step 1: Adjust the height of the heating box (1) according to the actual operation requirements (such as matching the height of the conveyor line and facilitating the operation of the operator to pick up and put down the forgings). Remove the fixing screws on the vertical rod (19), pull the inner rod (1902) up and down along the outer rod (1901), adjust the heating box (1) to a suitable height from the ground, pass the screw through the through hole B (19011) of the outer rod (1901), and screw it into the screw hole B (19021) of the inner rod (1902) at the corresponding height to complete the height fixing of the heating box (1), and use the cast iron counterweight base (20) to ensure the overall stability of the device; Step 2: Open the sliding door (7), rotate the handle (18) on the back of the groove seat (12) in the opposite direction, drive the rotating rod (16) to drive the screw (17) out of the screw hole A (1101) of the protrusion (11), slide the slider B (14) along the guide rail B (13) to make the screw (17) disengage from the through hole A (1201) of the groove seat (12), pull the door (7), and drive the slider A (10) along the guide rail A (9) on both sides of the heating box (1) through the connecting rod (21) to fully open the door (7); Step 3: Arrange the multiple forgings to be heated in the forging placement slot (8) inside the box door (7). After placement, push the box door (7) and slide the slider A (10) along the guide rail A (9) to push the forging placement slot (8) into the heating chamber (101) of the heating box (1). At the same time, the box door (7) closes the opening on the surface of the heating box (1). At this time, the protrusions (11) on both sides of the box door (7) are inserted into the grooves (12) on both sides of the heating box (1) to achieve preliminary positioning. Step 4: Slide slider B (14) along guide rail B (13) to drive bearing (15), rotating rod (16) and screw (17) to move, so that screw (17) passes through through hole A (1201) of groove seat (12) and aligns with screw hole A (1101) of protrusion (11). Turn handle (18) to drive rotating rod (16), and tighten screw (17) with screw hole A (1101) by means of the rotation of bearing (15). Tighten all screws (17) into corresponding screw holes to complete the firm fixation of box door (7) and heating box (1); Step 5: Connect the power supply of the heating component (5) to make several heating rods (501) energize and heat up, release heat into the heating chamber (101) to heat the forging in the forging placement slot (8), and at the same time start the fan A (6) on the air inlet pipe (3) and the multiple fans B (23) inside the heating box (1). During the heating process, the residual heat generated by the wall of the heating chamber (101), the heat dissipation from the back of the heating box (1), and the heat dissipated by some high-temperature flue gas are quickly captured and absorbed by the heat pipe type waste heat recovery device (2) embedded and fixed on the back of the heating box (1). The heat is conducted through the inside of the heat pipe to the tube outside the heating box (1). The fan A (6) continuously draws in external cold air into the tube outside the heat pipe. After the cold air and the residual heat inside the tube are fully exchanged, the temperature rises to form hot air. It is transported to the bottom of the heating box (1) through the connecting pipe (4) and sent into the heating chamber (101). The auxiliary heating rod (501) realizes the recycling of waste heat. Fan B (23) accelerates the airflow in the heating chamber (101), causing the hot air after heat exchange to spread rapidly to the entire heating chamber (101), while making the heat generated by the heating rod (501) evenly distributed, avoiding local temperature differences, ensuring that all forgings are heated evenly, and the high-temperature flue gas generated by heating gathers in the upper part of the heating chamber (101) and is slowly discharged through the exhaust pipe (22) at the top center, maintaining the stable air pressure in the heating chamber (101) and ensuring the heating effect.

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