A chain plate, a chain plate conveyor, a hot forging waste heat utilization system and method

Abstract

The present invention discloses a chain plate, a chain plate conveyor, a hot forging waste heat utilization system and method. The chain plate has a hollow structure and includes a first wall plate, a second wall plate, a first arc-shaped wall plate, a second arc-shaped wall plate and end plates at both ends in the length direction of the chain plate. A partition plate is arranged in the chain plate chamber, and the partition plate divides the chain plate chamber into independent first and second chambers; a working medium is filled in the first chamber, and a phase change heat storage material is filled in the second chamber. When the chain plate runs to the lower layer of the chain plate conveyor, the heat dissipated by the first wall plate through convection and radiation is reduced. When the chain plate runs to the upper layer of the chain plate conveyor, the heat pipe working principle is formed, and the heat is efficiently transferred from the phase change heat storage material to the material to be heated.

Description

Technical Field

[0001] The present invention relates to the technical field of hot upsetting waste heat utilization, and particularly relates to a chain plate, a chain plate conveyor, a hot upsetting waste heat utilization system and a method. Background Art

[0002] After hot upsetting processing of large-sized nut fasteners above M30, there is still forging waste heat of nearly 900 °C. Non-quenched and tempered steel fasteners are mainly applied to 8.8-grade bolts, and after cold processing, a stabilization treatment at 200 - 510 °C is required. In order to use the 900 °C forging waste heat after hot upsetting processing as a heat source to treat the stabilization of non-quenched and tempered steel fasteners and achieve green and low-carbon manufacturing of non-quenched and tempered steel fasteners, the existing process adopts a system for using hot upsetting waste heat for the stabilization treatment of non-quenched and tempered steel bolts.

[0003] This system mainly includes a heat preservation housing, a chain plate conveyor, a hot upsetting product feeding hopper, a hot upsetting product discharging hopper, a non-quenched and tempered steel fastener loading machine, and a non-quenched and tempered steel fastener discharging hopper. The chain plate conveyor is horizontally arranged inside the heat preservation housing. The chain plate conveyor includes a chain plate and a driving sprocket and a driven sprocket respectively arranged at both ends. When the chain plate runs to the upper layer, the first surface of the chain plate faces upward and moves from the first end to the second end. When the chain plate moves to the lower layer, the second surface of the chain plate faces upward and moves from the second end to the first end. The hot upsetting product feeding hopper is arranged at the second end of the lower layer of the chain plate conveyor, and the hot upsetting product discharging hopper is arranged at the first end of the lower layer of the chain plate conveyor. The hot upsetting products enter the upper surface of the chain plate at the lower layer of the chain plate conveyor from the hot upsetting product feeding hopper and move from the second end to the first end along with the chain plate. The non-quenched and tempered steel fastener loading machine is arranged at the first end of the upper layer of the chain plate conveyor, and the non-quenched and tempered steel fastener discharging hopper is arranged at the second end of the upper layer of the chain plate conveyor. The non-quenched and tempered steel fasteners enter the upper surface of the chain plate at the upper layer of the chain plate conveyor from the non-quenched and tempered steel fastener loading machine and move from the first end to the second end along with the chain plate. The hot upsetting products and the non-quenched and tempered steel fasteners move in reverse inside the heat preservation housing to achieve heat exchange.

[0004] However, in the above-mentioned system for using hot upsetting waste heat for the stabilization treatment of non-quenched and tempered steel bolts, the hot upsetting products and the non-quenched and tempered steel fasteners mainly achieve convective heat transfer through the air inside the heat preservation housing, conductive heat transfer through the chain plate as an intermediate heat carrier, and a small part of indirect radiation heat transfer through the inner wall of the heat preservation housing. The heat transfer efficiency of the above three methods is not high. Although the heat preservation housing uses heat preservation materials, due to the low heat transfer efficiency between the hot upsetting products and the non-quenched and tempered steel fasteners, there is still a large proportion of heat dissipation. Summary of the Invention

[0005] The purpose of the present invention is to solve the shortcomings of the existing system for using hot upsetting waste heat for the stabilization treatment of non-quenched and tempered steel fasteners, and to propose a chain plate, a chain plate conveyor, a hot upsetting waste heat utilization system and a method.

[0006] To achieve the above object, the first technical solution of the present invention is as follows:

[0007] A chain plate for a horizontally arranged chain conveyor. When the chain plate runs to the lower layer of the chain conveyor, the second wall plate of the chain plate faces upward. When the chain plate runs to the upper layer of the chain conveyor, the first wall plate of the chain plate faces upward.

[0008] The chain plate is of a hollow structure. The chain plate includes a first wall plate, a second wall plate, a first arc wall plate, a second arc wall plate, and end plates at both ends in the length direction of the chain plate. The first wall plate, the second wall plate, the first arc wall plate, the second arc wall plate, and the end plates at both ends in the length direction of the chain plate enclose to form a chain plate chamber. A partition is arranged in the chain plate chamber. The partition is arranged parallel to the first wall plate and the second wall plate, and is fixedly connected to the first arc wall plate, the second arc wall plate, and the end plates, dividing the chain plate chamber into two independent first chambers and second chambers. The first chamber is filled with a working medium, and the second chamber is filled with a phase change heat storage material.

[0009] As a further preferred technical solution of the present invention, the first wall plate, the second wall plate, and the partition are all made of high thermal conductivity materials.

[0010] As a further preferred technical solution of the present invention, the phase change temperature of the phase change heat storage material is 600 - 800 °C.

[0011] Preferably, the phase change heat storage material is molten salt.

[0012] The present invention also provides a second technical solution:

[0013] A chain conveyor using the chain plate of the first technical solution described above. The chain conveyor further includes a hinge plate, a driving gear, and a driven gear. A hinge shaft is arranged on the end plate of the chain plate. A plurality of the chain plates form a chain belt in the form of a hinge through the cooperation of the hinge plate and the hinge shaft. The driving gear is in transmission connection with the hinge plate, the hinge plate is in transmission connection with the driven gear, and the hinge plate is rotatably connected to the hinge shaft. Under the cooperation of the driving gear, the driven gear, and the hinge plate, the driving gear drives the chain belt to run.

[0014] As a further preferred technical solution of the present invention, in the length direction of the chain plate, there are gaps between the driving gear, the driven gear, and the hinge plate and the end plate of the chain plate.

[0015] The present invention also provides a third technical solution:

[0016] A hot forging waste heat utilization system, the hot forging waste heat utilization system includes the chain conveyor described in the second technical solution above. The hot forging waste heat utilization system further includes a heat preservation housing, a hot forging product feed hopper, a hot forging product discharge hopper, a non-quenched and tempered steel fastener loading machine, and a non-quenched and tempered steel fastener discharge hopper. The hot forging product feed hopper is arranged at the second end of the lower layer of the chain conveyor, and the hot forging product discharge hopper is arranged at the first end of the lower layer of the chain conveyor. The hot forging product enters the upper surface of the chain on the lower layer of the chain conveyor from the hot forging product feed hopper and moves from the second end to the first end following the chain, and discharges from the hot forging product discharge hopper. The non-quenched and tempered steel fastener loading machine is arranged at the first end of the upper layer of the chain conveyor, and the non-quenched and tempered steel fastener discharge hopper is arranged at the second end of the upper layer of the chain conveyor. The non-quenched and tempered steel fasteners enter the upper surface of the chain on the upper layer of the chain conveyor from the non-quenched and tempered steel fastener loading machine and move from the first end to the second end following the chain, and discharge from the non-quenched and tempered steel fastener discharge hopper.

[0017] As a further preferred technical solution of the present invention, the hot forging waste heat utilization system further includes an air circulation fan, and the air circulation fan is used to convey the hot air between the upper and lower layers of the chain conveyor to the space between the upper layer of the chain conveyor and the heat preservation housing. The air circulation fan can enhance the heat exchange between the hot forging product and the non-quenched and tempered steel fasteners, thereby improving the heat exchange efficiency.

[0018] As a further preferred technical solution of the present invention, the hot forging waste heat utilization system further includes a hot forging product cooling tank, a magnet loading machine, a non-quenched and tempered steel fastener cooling tank, and a non-quenched and tempered steel fastener pretreatment tank. A first connecting water pipe is arranged between the hot forging product cooling tank and the non-quenched and tempered steel fastener pretreatment tank, and a second connecting water pipe is arranged between the non-quenched and tempered steel fastener cooling tank and the hot forging product cooling tank. A water pump is arranged on the second connecting water pipe.

[0019] The present invention also provides a fourth technical solution:

[0020] A hot forging waste heat utilization method, the method uses the hot forging waste heat utilization system described in the third technical solution above, and the method is used for the stabilization treatment of non-quenched and tempered steel fasteners. The method mainly includes the following steps:

[0021] The hot forging product enters the second wall plate of the chain at the second end of the lower layer of the chain conveyor from the hot forging product feed hopper;

[0022] The hot forging product moves from the second end to the first end following the chain;

[0023] The hot forging product discharges from the hot forging product discharge hopper;

[0024] Meanwhile, the non-quenched and tempered steel fasteners enter the first wall plate of the chain plate on the upper layer at the first end of the chain plate conveyor from the non-quenched and tempered steel fastener loader;

[0025] The non-quenched and tempered steel fasteners move from the first end to the second end following the chain plate;

[0026] The non-quenched and tempered steel fasteners are discharged from the non-quenched and tempered steel fastener discharge hopper.

[0027] The present invention has the following beneficial effects:

[0028] 1. When the chain plate provided by the present invention runs to the lower layer of the chain plate conveyor, the second wall plate of the chain plate faces upward, and the conveyed high-temperature material is conveyed on the second wall plate. The conveyed high-temperature material exchanges heat with the phase change heat storage material filled in the second chamber through the second wall plate, and the heat is stored in the phase change heat storage material. At this time, under the action of gravity, the liquid working medium in the first chamber is located at the bottom of the first chamber in contact with the first wall plate, and the first chamber is in an adiabatic state, preventing heat from being transferred from the phase change heat storage material to the first wall plate. Further, the first wall plate that has not been heat-transferred is in a low-temperature state, and the heat dissipated by the first wall plate through convection and radiation is reduced.

[0029] 2. When the chain plate provided by the present invention runs to the upper layer of the chain plate conveyor, the first wall plate of the chain plate faces upward, and the conveyed material to be heated is conveyed on the first wall plate. The conveyed material to be heated exchanges heat with the phase change heat storage material filled in the second chamber through the first wall plate and the first chamber, and the heat is transferred from the phase change heat storage material to the material to be heated. At this time, under the action of gravity, the liquid working medium in the first chamber is located at the bottom of the first chamber in contact with the partition plate. The liquid working medium exchanges heat with the high-temperature phase change heat storage material through the partition plate. The liquid working medium absorbs heat and evaporates into a gaseous working medium. The gaseous working medium moves upward to the first wall plate and exchanges heat with the material to be heated through the first wall plate. The gaseous working medium releases heat and condenses into a liquid working medium. The liquid working medium flows back to the bottom of the first chamber in contact with the partition plate under the action of gravity, and so on in a cycle, forming the heat pipe working principle, and efficiently transferring the heat from the phase change heat storage material to the material to be heated.

[0030] 3. The drive mechanism of the chain conveyor provided by the present invention drives the rotation of the driving gear, and the driving gear is in transmission connection with the hinge plate. Under the cooperation of the driving gear, the driven gear, the hinge plate and the hinge shaft, the driving gear drives the chain conveyor belt to operate. In the prior art, the chain conveyor belt is driven by a roller, and the contact area between the roller and the chain plate is large, and the heat stored in the chain plate is dissipated through the heat conduction of the roller to a large extent. Compared with the prior art, in the chain conveyor provided by the present invention, the heat stored in the chain plate can only be conducted to the hinge plate through the hinge shaft, and then conducted to the driving gear or the driven gear through the hinge plate. The heat conduction path is long and the conduction area is small, which can effectively reduce the dissipation of the heat stored in the chain plate. Description of the Drawings

[0031] Figure 1 It is a schematic structural diagram of the chain plate in the upper state of the chain conveyor provided by the present invention;

[0032] Figure 2 is Figure 1 The structural diagram after sectioning along the A-A line;

[0033] Figure 3 is Figure 2 The view of the chain plate along the B direction of;

[0034] Figure 4 It is a structural diagram of the chain conveyor provided by the present invention;

[0035] Figure 5 is Figure 4 The partial enlarged schematic diagram at C in;

[0036] Figure 6 It is a system diagram of hot forging waste heat utilization provided by the present invention;

[0037] Figure 7 is Figure 6 The schematic diagram of the hot forging waste heat utilization system in after removing the heat preservation housing.

[0038] In the figure: 100 - chain plate, 101 - hinge shaft, 102 - first wall plate, 103 - second wall plate, 104 - first arc wall plate, 105 - second arc wall plate, 106 - partition plate, 107 - first chamber, 108 - second chamber;

[0039] 200 - chain conveyor, 201 - driving gear, 202 - driven gear, 203 - hinge plate;

[0040] 301 - Thermal insulation housing, 302 - Feeding hopper for hot - upset products, 303 - Discharging hopper for hot - upset products, 304 - Feeding machine for non - quenched and tempered steel fasteners, 305 - Discharging hopper for non - quenched and tempered steel fasteners, 306 - Cooling tank for hot - upset products, 307 - Magnet feeding machine, 308 - Cooling tank for non - quenched and tempered steel fasteners, 309 - Air circulation fan, 310 - Water pump, 311 - First connecting water pipe, 312 - Second connecting water pipe, 313 - Pretreatment tank for non - quenched and tempered steel fasteners. Detailed implementation mode

[0041] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments.

[0042] Refer to Figures 1-3 , a chain plate, which is used for a horizontally arranged chain - plate conveyor. When the chain plate 100 runs to the lower layer of the chain - plate conveyor, the second wall plate 103 of the chain plate 100 faces upward. When the chain plate 100 runs to the upper layer of the chain - plate conveyor, the first wall plate 102 of the chain plate 100 faces upward.

[0043] The chain plate 100 is of a hollow structure. The chain plate 100 includes a first wall plate 102, a second wall plate 103, a first arc - shaped wall plate 104, a second arc - shaped wall plate 105, and end plates at both ends in the length direction of the chain plate. The first wall plate 102, the second wall plate 103, the first arc - shaped wall plate 104, the second arc - shaped wall plate 105, and the end plates at both ends in the length direction of the chain plate enclose to form a chain - plate chamber. A partition plate 106 is arranged in the chain - plate chamber. The partition plate 106 is arranged parallel to the first wall plate 102 and the second wall plate 103. The partition plate 106 is fixedly connected to the first arc - shaped wall plate 104, the second arc - shaped wall plate 105, and the end plates, dividing the chain - plate chamber into independent first chamber 107 and second chamber 108. The first chamber 107 is filled with a working medium, and the second chamber 108 is filled with a phase - change heat - storage material.

[0044] It should be understood that when the link plate 100 runs to the lower layer of the link plate conveyor, the second wall plate 103 of the link plate 100 faces upward, and the conveyed high-temperature material is conveyed on the second wall plate 103. The conveyed high-temperature material exchanges heat with the phase change heat storage material filled in the second chamber 108 through the second wall plate 103, and the heat is stored in the phase change heat storage material. At this time, under the action of gravity, the liquid working medium in the first chamber 107 is located at the bottom of the first chamber 107 and contacts the first wall plate 102. The first chamber 107 is in an adiabatic state, and the heat is prevented from being transferred from the phase change heat storage material to the first wall plate 102. Further, the first wall plate 102 that has not been heat-transferred is in a low-temperature state, and the heat dissipated by the first wall plate 102 through convection and radiation is reduced.

[0045] It should be understood that when the link plate 100 runs to the upper layer of the link plate conveyor, the first wall plate 102 of the link plate 100 faces upward, and the conveyed material to be heated is conveyed on the first wall plate 102. The conveyed material to be heated exchanges heat with the phase change heat storage material filled in the second chamber 108 through the first wall plate 102 and the first chamber 107, and the heat is transferred from the phase change heat storage material to the material to be heated. At this time, under the action of gravity, the liquid working medium in the first chamber 107 is located at the bottom of the first chamber 107 and contacts the partition plate. The liquid working medium exchanges heat with the high-temperature phase change heat storage material through the partition plate. The liquid working medium absorbs heat and evaporates into a gaseous working medium. The gaseous working medium moves upward to the first wall plate 102 and exchanges heat with the material to be heated through the first wall plate 102. The gaseous working medium releases heat and condenses into a liquid working medium. The liquid working medium flows back to the bottom of the first chamber 107 under the action of gravity and contacts the partition plate. This cycle is repeated, forming the heat pipe working principle, and efficiently transferring the heat from the phase change heat storage material to the material to be heated.

[0046] As a further preferred technical solution of the present invention, the first wall plate 102, the second wall plate 103, and the partition plate 106 are all made of high thermal conductivity materials. Preferably, the high thermal conductivity material is a metal. Preferably, the high thermal conductivity material is aluminum.

[0047] As a further preferred technical solution of the present invention, the phase change temperature of the phase change heat storage material is 600 - 800 °C. Preferably, the phase change heat storage material is molten salt. Preferably, the phase change heat storage material is chloride salt. Preferably, the phase change heat storage material is potassium chloride.

[0048] Refer to Figures 4-5, on the other hand, the present invention provides a chain plate conveyor. The chain plate conveyor 200 uses the chain plate 100 described in any of the above embodiments. The chain plate conveyor 200 further includes a hinge plate 203, a driving gear 201, and a driven gear 202. A hinge shaft 101 is provided on the end plate of the chain plate 100. A plurality of the chain plates 100 form a chain plate conveyor belt in a hinge form through the cooperation of the hinge plate 203 and the hinge shaft 101. The driving gear 201 is in transmission connection with the hinge plate 203, the hinge plate 203 is in transmission connection with the driven gear 202, and the hinge plate 203 is rotatably connected to the hinge shaft 101. Under the cooperation of the driving gear 201, the driven gear 202, and the hinge plate 203, the driving gear 201 drives the chain plate conveyor belt to run.

[0049] As a further preferred technical solution of the present invention, in the length direction of the chain plate 100, there is a certain gap between the driving gear 201, the driven gear 202, and the hinge plate 203 and the end plate of the chain plate 100.

[0050] It can be understood that a driving mechanism (not shown in the figure) of the chain plate conveyor 200 drives the driving gear 201 to rotate. The driving gear 201 is in transmission connection with the hinge plate 203. Under the cooperation of the driving gear 201, the driven gear 202, the hinge plate 203, and the hinge shaft 101, the driving gear 201 drives the chain plate conveyor belt to run. In the prior art, the chain plate conveyor belt is driven by a roller, and the contact area between the roller and the chain plate is large. The heat stored in the chain plate is dissipated greatly through the heat conduction of the roller. Compared with the prior art, in the chain plate conveyor provided by the present invention, the heat stored in the chain plate 100 can only be conducted to the hinge plate 203 through the hinge shaft 101, and then conducted to the driving gear 201 or the driven gear 202 through the hinge plate 203. The heat conduction path is long and the conduction area is small, which can effectively reduce the dissipation of the heat stored in the chain plate 100.

[0051] Refer to Figures 6-7, on the other hand, the present invention provides a hot forging waste heat utilization system, which includes the chain conveyor 200 described in any of the above embodiments. The hot forging waste heat utilization system further includes a heat preservation housing 301, a hot forging product feeding hopper 302, a hot forging product discharging hopper 303, a non-quenched and tempered steel fastener feeding machine 304, and a non-quenched and tempered steel fastener discharging hopper 305. The hot forging product feeding hopper 302 is arranged at the second end of the lower layer of the chain conveyor 200, and the hot forging product discharging hopper 303 is arranged at the first end of the lower layer of the chain conveyor 200. The hot forging products enter the upper surface of the chain 100 on the lower layer of the chain conveyor 200 from the hot forging product feeding hopper 302, and move from the second end to the first end following the chain 100, and are discharged from the hot forging product discharging hopper 303. The non-quenched and tempered steel fastener feeding machine 304 is arranged at the first end of the upper layer of the chain conveyor 200, and the non-quenched and tempered steel fastener discharging hopper 305 is arranged at the second end of the upper layer of the chain conveyor 200. The non-quenched and tempered steel fasteners enter the upper surface of the chain 100 on the upper layer of the chain conveyor 200 from the non-quenched and tempered steel fastener feeding machine 304, and move from the first end to the second end following the chain 100, and are discharged from the non-quenched and tempered steel fastener discharging hopper 305.

[0052] It can be understood that the hot forging products and the non-quenched and tempered steel fasteners move reversely inside the heat preservation housing to achieve heat exchange.

[0053] As a further preferred technical solution of the present invention, the hot forging waste heat utilization system further includes an air circulation fan 309, which is used to convey the hot air between the upper and lower layers of the chain conveyor 200 to the space between the upper layer of the chain conveyor 200 and the heat preservation housing 301. The air circulation fan 309 can enhance the heat exchange between the hot forging products and the non-quenched and tempered steel fasteners, thereby improving the heat exchange efficiency.

[0054] As a further preferred technical solution of the present invention, the hot forging waste heat utilization system further includes a hot forging product cooling tank 306, a magnet feeding machine 307, a non-quenched and tempered steel fastener cooling tank 308, and a non-quenched and tempered steel fastener pretreatment tank 313.

[0055] A first connecting water pipe 311 is arranged between the hot forging product cooling tank 306 and the non-quenched and tempered steel fastener pretreatment tank 313, and a second connecting water pipe 312 is arranged between the non-quenched and tempered steel fastener cooling tank 308 and the hot forging product cooling tank 306. A water pump 310 is arranged on the second connecting water pipe 312.

[0056] It can be understood that the high-temperature non-quenched and tempered steel fasteners enter the non-quenched and tempered steel fastener cooling tank 308 from the non-quenched and tempered steel fastener discharge hopper 305, and the heat of the high-temperature non-quenched and tempered steel fasteners is absorbed by the cooling water in the non-quenched and tempered steel fastener cooling tank 308. The high-temperature hot forged products enter the hot forged product cooling tank 306 from the hot forged product discharge hopper 303, and the heat of the high-temperature hot forged products is absorbed by the cooling water in the hot forged product cooling tank 306. By setting the first connecting water pipe 311 and the second connecting water pipe 312, the heat of the cooling water in the hot forged product cooling tank 306 and the cooling water in the non-quenched and tempered steel fastener cooling tank 308 can be transferred to the non-quenched and tempered steel fastener pretreatment tank 313.

[0057] On the other hand, the present invention provides a method for utilizing hot forging waste heat. The method utilizes the hot forging waste heat utilization system described in any one of the above embodiments. The method is used for the stabilization treatment of non-quenched and tempered steel fasteners, and the method mainly includes the following steps:

[0058] The hot forged products enter the second wall plate 103 of the chain plate 100 at the lower layer and the second end of the chain plate conveyor 200 from the hot forged product feed hopper 302;

[0059] The hot forged products move from the second end to the first end following the chain plate 100;

[0060] The hot forged products are discharged from the hot forged product discharge hopper 303;

[0061] At the same time, the non-quenched and tempered steel fasteners enter the first wall plate 102 of the chain plate 100 at the upper layer and the first end of the chain plate conveyor 200 from the non-quenched and tempered steel fastener loader 304;

[0062] The non-quenched and tempered steel fasteners move from the first end to the second end following the chain plate 100;

[0063] The non-quenched and tempered steel fasteners are discharged from the non-quenched and tempered steel fastener discharge hopper 305.

[0064] The above is only the preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A chain plate, used for a horizontally arranged chain plate conveyor, wherein when the chain plate (100) runs to the lower layer of the chain plate conveyor, the second wall plate (103) of the chain plate (100) faces upward, and when the chain plate (100) runs to the upper layer of the chain plate conveyor, the first wall plate (102) of the chain plate (100) faces upward; characterized in that: The chain plate (100) is a hollow structure, and comprises a first wall plate (102), a second wall plate (103), a first curved wall plate (104), a second curved wall plate (105), and end plates at both ends of the length direction of the chain plate, wherein the first wall plate (102), the second wall plate (103), the first curved wall plate (104), the second curved wall plate (105), and the end plates at both ends of the length direction of the chain plate enclose a chain plate chamber, and a partition is provided in the chain plate chamber. The partition plate (106) is arranged in parallel with the first wall plate (102) and the second wall plate (103); the partition plate (106) is fixedly connected to the first arc-shaped wall plate (104), the second arc-shaped wall plate (105) and the end plate, so as to divide the chain plate chamber into a first chamber (107) and a second chamber (108) which are independent of each other; the first chamber (107) is filled with a working medium, and the second chamber (108) is filled with a phase change heat storage material.

2. A chain plate according to claim 1, characterized in that: The first wall plate (102), the second wall plate (103) and the partition plate (106) are all made of high thermal conductivity materials.

3. A chain plate according to claim 1, characterized in that: The phase change temperature of the phase change heat storage material is 600-800°C.

4. A chain plate according to claim 3, characterized in that: The phase change heat storage material is molten salt.

5. A chain conveyor, characterized in that: The chain plate conveyor (200) adopts the chain plate (100) according to any one of claims 1 to 4, and the chain plate conveyor (200) further includes a hinge plate (203), a driving gear (201) and a driven gear (202), the end plate of the chain plate (100) is provided with a hinge shaft (101), and a plurality of chain plates (100) form a hinged chain plate conveyor belt through the cooperation of the hinge plate (203) and the hinge shaft (101); the driving gear (201) is transmission-connected to the hinge plate (203), the hinge plate (203) is transmission-connected to the driven gear (202), the hinge plate (203) is rotationally connected to the hinge shaft (101), and under the cooperation of the driving gear (201), the driven gear (202) and the hinge plate (203), the driving gear (201) drives the chain plate conveyor belt to run.

6. A chain conveyor according to claim 5, characterized in that: In the length direction of the chain plate (100), there is a gap between the driving gear (201), the driven gear (202) and the hinge plate (203) and the end plate of the chain plate (100).

7. A hot upsetting waste heat utilization system, characterized in that: The hot upsetting waste heat utilization system comprises the chain conveyor (200) as claimed in claim 6, and the hot upsetting waste heat utilization system also comprises an insulation shell (301), a hot upsetting product feed hopper (302), a hot upsetting product discharge hopper (303), a non-quenched and tempered steel fastener loader (304), and a non-quenched and tempered steel fastener discharge hopper (305); the hot upsetting product feed hopper (302) is arranged at the lower second end of the chain conveyor (200), the hot upsetting product discharge hopper (303) is arranged at the lower first end of the chain conveyor (200), the non-quenched and tempered steel fastener loader (304) is arranged at the upper first end of the chain conveyor (200), and the non-quenched and tempered steel fastener discharge hopper (305) is arranged at the upper second end of the chain conveyor.

8. The hot upsetting waste heat utilization system according to claim 7, characterized in that: The hot upsetting waste heat utilization system further comprises an air circulation fan (309), wherein the air circulation fan (309) is used to transport hot air between the upper layer and the lower layer of the chain conveyor (200) to the space between the upper layer of the chain conveyor (200) and the heat-insulating shell (301).

9. The hot upsetting waste heat utilization system according to claim 8, characterized in that: The hot forging waste heat utilization system also includes a hot forging product cooling trough (306), a magnet loader (307), a non-quenched and tempered steel fastener cooling trough (308), and a non-quenched and tempered steel fastener pretreatment trough (313); a first connecting water pipe (311) is provided between the hot forging product cooling trough (306) and the non-quenched and tempered steel fastener pretreatment trough (313); a second connecting water pipe (312) is provided between the non-quenched and tempered steel fastener cooling trough (308) and the hot forging product cooling trough (306); and a water pump (310) is provided on the second connecting water pipe (312).

10. A method for utilizing waste heat from hot upsetting, characterized in that: The method utilizes the hot upsetting waste heat utilization system as described in any one of claims 7 to 9, and the method is used for stabilization treatment of non-quenched and tempered steel fasteners, and the method comprises the following steps: The hot upsetting product enters the second wall plate (103) of the chain plate (100) at the second end of the lower layer of the chain plate conveyor (200) from the hot upsetting product feeding hopper (302); The hot upsetting product moves from the second end to the first end following the chain plate (100); The hot upsetting product is discharged from the hot upsetting product discharge hopper (303); At the same time, non-quenched and tempered steel fasteners enter the first wall plate (102) of the chain plate (100) at the first end of the upper layer of the chain plate conveyor (200) from the non-quenched and tempered steel fastener loader (304); The non-quenched and tempered steel fastener moves from the first end to the second end following the chain plate (100); The non-quenched and tempered steel fasteners are discharged from the non-quenched and tempered steel fastener discharge hopper (305).

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