Chain plate, chain plate conveyor and hot upsetting waste heat utilization system and method

Abstract

The invention discloses a chain plate, a chain plate conveyor and a hot upsetting waste heat utilization system and method.The chain plate is of a hollow structure and comprises a first wall plate, a second wall plate, a first arc-shaped wall plate, a second arc-shaped wall plate and end plates at the two ends of the chain plate in the length direction, and a partition plate is arranged in a cavity of the chain plate; the chain plate chamber is divided into a first chamber and a second chamber which are independent from each other by the partition plate; the first cavity is filled with a working medium, and the second cavity is filled with a phase change heat storage material. When the chain plate runs to the lower layer of the chain plate conveyor, heat dissipated by the first wall plate through convection and radiation is reduced, and when the chain plate runs to the upper layer of the chain plate conveyor, a heat pipe working principle is formed, and heat is efficiently transferred to a material to be heated from a phase change heat storage material.

Description

Technical Field

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

[0002] After hot upsetting of large-size nut fasteners above M30, there is still nearly 900℃ forging waste heat. Non-quenched and tempered steel fasteners are mainly used for 8.8-grade bolts, and need to be stabilized at 200~510℃ after cold processing. In order to use the 900℃ forging waste heat after hot upsetting as a heat source to treat the stabilization of non-quenched and tempered steel fasteners and realize the green and low-carbon manufacturing of non-quenched and tempered steel fasteners, the existing process adopts a hot upsetting waste heat for non-quenched and tempered steel bolt stabilization treatment system.

[0003] The system mainly includes an insulation shell, a chain conveyor, a hot upsetting product feed hopper, a hot upsetting product discharge hopper, a non-quenched and tempered steel fastener loader, and a non-quenched and tempered steel fastener discharge hopper. The chain conveyor is horizontally arranged inside the insulation shell. The chain 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 feed hopper is arranged at the second end of the lower layer of the chain plate conveyor, and the hot upsetting product discharge hopper is arranged at the first end of the lower layer of the chain plate conveyor. The hot upsetting product enters the upper surface of the chain plate of the lower layer of the chain plate conveyor from the hot upsetting product feed hopper, and moves from the second end to the first end with the chain plate; the non-quenched and tempered steel fastener feeder is arranged at the first end of the upper layer of the chain plate conveyor, and the non-quenched and tempered steel fastener discharge 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 of the upper layer of the chain plate conveyor from the non-quenched and tempered steel fastener feeder, and move from the first end to the second end with the chain plate. The hot upsetting product and the non-quenched and tempered steel fasteners move in the opposite direction inside the heat-insulating shell to realize heat exchange.

[0004] However, the above-mentioned hot upsetting waste heat is used in the non-quenched and tempered steel bolt stabilization treatment system. The heat exchange between the hot upsetting product and the non-quenched and tempered steel fasteners is mainly achieved through convection heat exchange in the air inside the insulation shell, heat conduction heat exchange through the chain plate as an intermediate heat carrier, and a small part of indirect radiation heat exchange through the inner wall of the insulation shell. The heat exchange efficiency of the above three methods is not high. Although the insulation shell adopts insulation material, due to the low heat exchange efficiency between the hot upsetting product and the non-quenched and tempered steel fasteners, a large proportion of heat dissipation still exists. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art system for using hot upsetting waste heat for 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 method.

[0006] In order to achieve the above object, the first technical solution of the present invention is: A chain plate is used for a horizontally arranged chain plate conveyor. When the chain plate runs to the lower layer of the chain plate conveyor, the second wall plate of the chain plate faces upwards. When the chain plate runs to the upper layer of the chain plate conveyor, the first wall plate of the chain plate faces upwards.

[0007] The chain plate is a hollow structure, comprising a first wall plate, a second wall plate, a first curved wall plate, a second curved wall plate and end plates at both ends of the length direction of the chain plate. The first wall plate, the second wall plate, the first curved wall plate, the second curved wall plate and the end plates at both ends of the length direction of the chain plate enclose a chain plate chamber. A partition is arranged in the chain plate chamber, and the partition is arranged parallel to the first wall plate and the second wall plate. The partition is fixedly connected to the first curved wall plate, the second curved wall plate and the end plates to separate the chain plate chamber into a first chamber and a second chamber that are independent of each other; the first chamber is filled with a working medium, and the second chamber is filled with a phase change heat storage material.

[0008] As a further preferred technical solution of the present invention, the first wall plate, the second wall plate and the partition plate are all made of high thermal conductivity materials.

[0009] 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.

[0010] Preferably, the phase change heat storage material is molten salt.

[0011] The present invention also provides a second technical solution: A chain conveyor, which adopts the chain plate described in the first technical solution above, and also includes a hinge plate, a driving gear and a driven gear. The end plate of the chain plate is provided with a hinge shaft, and a plurality of chain plates form a hinge-shaped chain conveyor belt through the cooperation of the hinge plate and the hinge shaft; the driving gear is transmission connected to the hinge plate, the hinge plate is transmission connected to the driven gear, the hinge plate is rotationally connected to the hinge shaft, and under the cooperation of the driving gear, the driven gear and the hinge plate, the driving gear drives the chain conveyor belt to operate.

[0012] As a further preferred technical solution of the present invention, in the length direction of the chain plate, there is a gap between the driving gear, the driven gear and the hinge plate and the end plate of the chain plate.

[0013] The present invention also provides a third technical solution: A hot upsetting waste heat utilization system, the hot upsetting waste heat utilization system includes the chain plate conveyor described in the second technical solution, the hot upsetting waste heat utilization system also includes an insulation shell, a hot upsetting product feed hopper, a hot upsetting product discharge hopper, a non-quenched and tempered steel fastener feeder, and a non-quenched and tempered steel fastener discharge hopper; the hot upsetting product feed hopper is arranged at the second end of the lower layer of the chain plate conveyor, the hot upsetting product discharge hopper is arranged at the first end of the lower layer of the chain plate conveyor, and the hot upsetting product enters the chain plate conveyor from the hot upsetting product feed hopper The non-quenched and tempered steel fastener loader is arranged at the upper first end of the chain plate conveyor, and the non-quenched and tempered steel fastener hopper is arranged at the upper second end of the chain plate conveyor. The non-quenched and tempered steel fasteners enter the upper surface of the chain plate of the upper layer of the chain plate conveyor from the non-quenched and tempered steel fastener loader, and follow the chain plate to move from the first end to the second end, and are discharged from the non-quenched and tempered steel fastener hopper.

[0014] As a further preferred technical solution of the present invention, the hot upsetting waste heat utilization system also includes an air circulation fan, which is used to transport 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 insulation shell. The air circulation fan can enhance the heat exchange between the hot upsetting products and the non-quenched and tempered steel fasteners, thereby improving the heat exchange efficiency.

[0015] As a further preferred technical solution of the present invention, the hot upsetting waste heat utilization system also includes a hot upsetting product cooling tank, a magnet feeder, 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 provided between the hot upsetting product cooling tank and the non-quenched and tempered steel fastener pretreatment tank, and a second connecting water pipe is provided between the non-quenched and tempered steel fastener cooling tank and the hot upsetting product cooling tank, and a water pump is provided on the second connecting water pipe.

[0016] The present invention also provides a fourth technical solution: A method for utilizing waste heat from hot upsetting, the method utilizing the waste heat utilization system from hot upsetting described in the third technical solution, the method being used for stabilization treatment of non-quenched and tempered steel fasteners, the method mainly comprising the following steps: The hot upsetting product enters the second wall plate of the chain plate at the second end of the lower layer of the chain plate conveyor from the hot upsetting product feeding hopper; The hot upsetting product moves from the second end to the first end following the chain plate; The hot upsetting product is discharged from the hot upsetting product discharge hopper; At the same time, non-quenched and tempered steel fasteners enter the first wall plate of the chain plate at the first end of the upper layer of the chain plate conveyor from the non-quenched and tempered steel fastener feeder; The non-quenched and tempered steel fastener moves with the link plate from the first end to the second end; Non-quenched and tempered steel fasteners are discharged from the non-quenched and tempered steel fastener discharge hopper.

[0017] The present invention has the following beneficial effects: 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 high-temperature material being transported is transported on the second wall plate. The high-temperature material being transported exchanges heat with the second chamber filled with phase change heat storage material 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 and contacts the first wall plate. The first chamber is in an adiabatic state, and heat is prevented from being transferred from the phase change heat storage material to the first wall plate. Furthermore, the first wall plate that is not heat-transferred is in a low-temperature state, and the heat dissipated by the first wall plate through convection and radiation is reduced.

[0018] 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 material to be heated is transported on the first wall plate. The 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 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 and contacts the partition. The liquid working medium exchanges heat with the high-temperature phase change heat storage material through the partition. 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 under the action of gravity and contacts the partition. This reciprocating cycle forms the working principle of a heat pipe, and efficiently transfers heat from the phase change heat storage material to the material to be heated.

[0019] 3. The driving mechanism of the chain conveyor provided by the present invention drives the driving gear to rotate, and the driving gear is connected to the hinge plate in transmission. With 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 rollers, and the contact area between the rollers and the chain plates is large. The heat stored in the chain plates is largely dissipated through the heat conduction of the rollers. Compared with the prior art, in the chain conveyor provided by the present invention, the heat stored in the chain plates can only be conducted to the hinge plate through the hinge shaft, and then 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 plates. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of the chain plate provided by the present invention when the chain plate conveyor is running to the upper layer; Figure 2 for Figure 1 The structural diagram after cutting along the AA line; Figure 3 for Figure 2 The view of the chain plate along the B direction; Figure 4 A structural diagram of the chain conveyor provided by the present invention; Figure 5 for Figure 4 A partial enlarged schematic diagram of point C in the middle; Figure 6 A diagram of a hot upsetting waste heat utilization system provided by the present invention; Figure 7 for Figure 6 Schematic diagram of the medium-heat upsetting waste heat utilization system after removing the insulation shell.

[0021] In the figure: 100-chain plate, 101-hinge shaft, 102-first wall plate, 103-second wall plate, 104-first arc-shaped wall plate, 105-second arc-shaped wall plate, 106-partition plate, 107-first chamber, 108-second chamber; 200-chain conveyor, 201-driving gear, 202-driven gear, 203-hinged plate; 301-insulation shell, 302-hot upsetting product feed hopper, 303-hot upsetting product discharge hopper, 304-non-quenched and tempered steel fastener loader, 305-non-quenched and tempered steel fastener discharge hopper, 306-hot upsetting product cooling trough, 307-magnet loader, 308-non-quenched and tempered steel fastener cooling trough, 309-air circulation fan, 310-water pump, 311-first connecting water pipe, 312-second connecting water pipe, 313-non-quenched and tempered steel fastener pretreatment tank. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0023] Reference Figure 1-3 A chain plate is used for a horizontally arranged chain conveyor. When the chain plate 100 runs to the lower layer of the chain 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 conveyor, the first wall plate 102 of the chain plate 100 faces upward.

[0024] The chain plate 100 is a hollow structure, and the chain plate 100 includes 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. 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 plate 106 is arranged in the chain plate chamber, and 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 curved wall plate 104, the second curved wall plate 105 and the end plates to separate 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.

[0025] It should be understood that 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 the high-temperature material being transported is transported on the second wall plate 103. The high-temperature material being transported exchanges heat with the second chamber 108 filled with phase-change heat storage material 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 heat is prevented from being transferred from the phase-change heat storage material to the first wall plate 102. Furthermore, the first wall plate 102 that is not heat-transferred is in a low-temperature state, and the heat dissipated by the first wall plate 102 through convection and radiation is reduced.

[0026] It should be understood that 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, and the material to be heated is transported on the first wall plate 102. The material to be heated is exchanged with the second chamber 108 filled with phase change heat storage material through the first wall plate 102 and the first chamber 107, and 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. The liquid working medium exchanges heat with the high-temperature phase change heat storage material through the partition. 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. This reciprocating cycle forms the working principle of a heat pipe, which efficiently transfers heat from the phase change heat storage material to the material to be heated.

[0027] 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 material. Preferably, the high thermal conductivity material is metal, preferably, the high thermal conductivity material is aluminum.

[0028] 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 uses molten salt. Preferably, the phase change heat storage material uses chloride salt. Preferably, the phase change heat storage material uses potassium chloride.

[0029] Reference Figure 4-5 On the other hand, the present invention provides a chain conveyor, wherein the chain conveyor 200 adopts the chain plate 100 described in any of the above embodiments, and the chain conveyor 200 also includes a hinged 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 conveyor belt through the cooperation of the hinged plate 203 and the hinge shaft 101; the driving gear 201 is transmission-connected to the hinged plate 203, and the hinged plate 203 is transmission-connected to the driven gear 202, and the hinged plate 203 is rotationally connected to the hinge shaft 101. Under the cooperation of the driving gear 201, the driven gear 202 and the hinged plate 203, the driving gear 201 drives the chain conveyor belt to run.

[0030] 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 .

[0031] It can be understood that the driving mechanism (not shown in the figure) of the chain plate conveyor 200 drives the driving gear 201 to rotate, and the driving gear 201 is connected to the hinge plate 203 in transmission. 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 operate. In the prior art, the chain plate conveyor belt is driven by rollers, and the contact area between the rollers and the chain plates is large. The heat stored in the chain plates is dissipated largely through the heat conduction of the rollers. 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 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.

[0032] Reference Figure 6-7 On the other hand, the present invention provides a hot upsetting waste heat utilization system, which includes the chain conveyor 200 described in any of the above embodiments, and the hot upsetting waste heat utilization system also includes a heat preservation shell 301, a hot upsetting product feed hopper 302, a hot upsetting product discharge hopper 303, a non-quenched and tempered steel fastener feeder 304, and a non-quenched and tempered steel fastener discharge hopper 305; the hot upsetting product feed hopper 302 is arranged at the second end of the lower layer of the chain conveyor 200, and the hot upsetting product discharge hopper 303 is arranged at the first end of the lower layer of the chain conveyor 200. The hot upsetting product enters the chain conveyor from the hot upsetting product feed hopper 302. The non-quenched and tempered steel fastener loader 304 is arranged at the upper first end of the chain plate conveyor 200, and the non-quenched and tempered steel fastener discharging hopper 305 is arranged at the upper second end of the chain plate conveyor. The non-quenched and tempered steel fasteners enter the upper surface of the chain plate 100 of the upper layer of the chain plate conveyor 200 from the non-quenched and tempered steel fastener loader 304, and follow the chain plate 100 to move from the first end to the second end, and are discharged from the non-quenched and tempered steel fastener discharging hopper 305.

[0033] It is understandable that the hot-forged product and the non-quenched and tempered steel fastener move in opposite directions inside the heat-insulating shell to achieve heat exchange.

[0034] As a further preferred technical solution of the present invention, the hot upsetting waste heat utilization system also includes an air circulation fan 309, which is used to transport 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 insulation shell 301. The air circulation fan 309 can enhance the heat exchange between the hot upsetting product and the non-quenched and tempered steel fasteners, thereby improving the heat exchange efficiency.

[0035] As a further preferred technical solution of the present invention, the hot upsetting waste heat utilization system also includes a hot upsetting product cooling tank 306, a magnet loader 307, a non-quenched and tempered steel fastener cooling tank 308, and a non-quenched and tempered steel fastener pretreatment tank 313.

[0036] A first connecting water pipe 311 is provided between the hot upsetting product cooling tank 306 and the non-quenched and tempered steel fastener pretreatment tank 313 , a second connecting water pipe 312 is provided between the non-quenched and tempered steel fastener cooling tank 308 and the hot upsetting product cooling tank 306 , and a water pump 310 is provided on the second connecting water pipe 312 .

[0037] 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 upsetting products enter the hot upsetting product cooling tank 306 from the hot upsetting product discharge hopper 303, and the heat of the high-temperature hot upsetting products is absorbed by the cooling water in the hot upsetting product cooling tank 306. By providing the first connecting water pipe 311 and the second connecting water pipe 312, the heat of the cooling water in the hot upsetting 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.

[0038] Another aspect of the present invention provides a method for utilizing waste heat from hot upsetting, the method utilizing the waste heat utilization system from hot upsetting described in any of the above embodiments, the method being used for stabilization treatment of non-quenched and tempered steel fasteners, the method mainly comprising 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 link plate 100; The non-quenched and tempered steel fasteners are discharged from the non-quenched and tempered steel fastener discharge hopper 305 .

[0039] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by 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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