Calcium carbide liquid forming and calcium carbide liquid waste heat utilization equipment

Abstract

The application relates to a calcium carbide liquid forming and calcium carbide liquid waste heat utilization equipment, which comprises a calcium carbide liquid forming unit and a calcium carbide liquid waste heat utilization unit, the calcium carbide liquid forming unit comprises a track, a calcium carbide furnace and a transfer assembly, the track is laid on a processing site in a closed manner, the calcium carbide furnace is arranged at one place along the track, the transfer assembly can travel along the track and is used for transporting calcium carbide liquid produced in the calcium carbide furnace to cool and form, and the calcium carbide liquid waste heat utilization unit comprises a waste heat utilization assembly and a steam turbine power station. The turning paddle accelerates the cooling speed of the calcium carbide liquid in the deep part of the stone pot, and the waste heat recovery efficiency is improved; when the stone pot is loaded and unloaded, the turning paddle is automatically moved out of or into the stone pot through a connecting rod, so that the equipment is convenient to use; in addition, based on the Bernoulli principle, the air flow speed can be improved under the condition that the running power of the fan is unchanged, so that the working efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of calcium carbide processing technology, specifically to a device for calcium carbide liquid forming and waste heat utilization of calcium carbide liquid. Background Technology

[0002] Industrial production of calcium carbide involves continuous feeding, continuous smelting, and intermittent tapping. Every so often, molten calcium carbide is released from the furnace. Since the released molten calcium carbide is at 1800℃-2000℃, it needs to be cooled, shaped, and crushed into a certain particle size for use by downstream industries.

[0003] Currently, the calcium carbide liquid forming equipment commonly used by calcium carbide enterprises involves multiple stone pots being used to alternately connect liquid calcium carbide and transport it to a cooling workshop for settling and cooling with natural or forced air. However, the stone pots currently in use generally only have a loading function. During the cooling process of the calcium carbide liquid, the liquid calcium carbide deep inside the stone pot cannot be exposed to the outside and therefore cannot be cooled quickly, which increases the time spent occupying the stone pot and is not conducive to improving the production efficiency of enterprises. Secondly, the heat of the hot calcium carbide liquid is also lost. According to the principle of energy conservation, producing hot calcium carbide liquid requires a very high energy consumption. For energy conservation and environmental protection, it is essential to recover and reuse the residual heat during the cooling process of calcium carbide liquid. Summary of the Invention

[0004] This invention provides a device for forming calcium carbide liquid and utilizing waste heat from calcium carbide liquid to solve the above-mentioned problems.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A calcium carbide liquid forming and waste heat utilization device includes a calcium carbide liquid forming unit and a calcium carbide liquid waste heat utilization unit. The calcium carbide liquid forming unit includes a track, a calcium carbide furnace, and a transfer assembly. The track is laid in a closed loop on the processing site. The calcium carbide furnace is located at one point along the track. The transfer assembly can travel along the track and is used to transport the calcium carbide liquid produced in the calcium carbide furnace away for cooling and forming. The calcium carbide liquid waste heat utilization unit includes a waste heat utilization component and a steam turbine power station. The waste heat utilization component is located outside the track and close to the calcium carbide furnace. It is used to recover the heat of the calcium carbide liquid transferred in the transfer assembly and use the heat to produce part of the high-temperature steam required for power generation by the steam turbine power station. The steam turbine power station is used to provide electrical energy to the calcium carbide liquid forming unit. The transfer assembly includes multiple frames connected end to end. Axles are rotatably connected to both sides of the interior of each frame. Wheels that engage with tracks are located at both ends of each axle. A base is mounted on one side of the top of each frame, with a notch on one edge. A stone pot is mounted on the top of the base. A first connecting rod is mounted on the other side of the top of the frame. A second connecting rod is rotatably connected above the first connecting rod. A first rotating shaft is rotatably connected to one end of the second connecting rod. Multiple agitator blades are evenly mounted on one end of the first rotating shaft. A third connecting rod is rotatably connected to the side of the second connecting rod closest to the first connecting rod. A fourth connecting rod is rotatably connected to the bottom of the third connecting rod. One end of the fourth connecting rod is rotatably connected to the middle of the first connecting rod, and the other end of the fourth connecting rod extends into the notch at the edge of the base. A base is mounted inside the frame below the notch at the edge of the base, and a spring is mounted on the top of the base. The transfer assembly further includes a first sprocket, a second sprocket, a third sprocket, a fourth sprocket, and a second shaft. The first sprocket is mounted on the outside of one side of the axle. The second shaft is rotatably connected to one end of a second connecting rod. The connecting shaft between the second shaft, the second connecting rod, and the first connecting rod is on the same central axis. The second sprocket is mounted on the outside of one end of the second shaft. The first sprocket and the second sprocket are connected by a chain. The third sprocket is mounted on the outside of the other end of the second shaft. The fourth sprocket is mounted on the outside of the middle of the first shaft. The third sprocket and the fourth sprocket are connected by a chain. The waste heat utilization component includes a tunnel erected outside the track. Multiple vent pipes are connected to both sides of one end of the tunnel, with a certain angle between the central axis of the vent pipes and the central axis of the tunnel. A first fan is installed at one end of each vent pipe, and the first fan is at a certain distance from the vent pipe. A first heat exchange coil is installed on the inner wall of the tunnel. An exhaust chimney is connected to the top of the other end of the tunnel. A second heat exchange coil is installed on the inner wall of the exhaust chimney. A second fan is installed at the bottom end of the exhaust chimney, and the second fan is at a certain distance from the exhaust chimney. The inlets of both the first and second heat exchange coils are connected to the steam liquefied water return pipeline of the steam turbine power plant, and the outlets of both the first and second heat exchange coils are connected to the steam boiler inlet of the steam turbine power plant.

[0006] As a preferred embodiment of the present invention, the transfer assembly further includes an electric traction vehicle head, which is mounted on the track and serves as a traction frame.

[0007] As a preferred embodiment of the present invention, the transfer component further includes a ground rail power supply system, which is laid out along the track and used to provide energy for the electric traction locomotive.

[0008] As a preferred embodiment of the present invention, the stone pot is provided with a plurality of end lugs for hoisting around its outer perimeter.

[0009] As a preferred embodiment of the present invention, the connection axis between the first link and the second link is designated as point A, the connection axis between the second link and the third link is designated as point B, the connection axis between the third link and the fourth link is designated as point C, and the connection axis between the fourth link and the first link is designated as point D. The distances between A, B, C, and D satisfy the following condition: LAB < LCD < LAD < LBC.

[0010] As a preferred embodiment of the present invention, the angle between the central axis of the blower pipe and the central axis of the tunnel is set as ∠1, where 30°≤∠1≤60°.

[0011] As a preferred embodiment of the present invention, the distance between the first fan and the blower pipe is set as L1, 1m≤L1≤3m, and the distance between the second fan and the exhaust chimney is set as L2, 1m≤L2≤3m.

[0012] As a preferred embodiment of the present invention, electric doors are provided at both ends of the tunnel.

[0013] This invention accelerates the cooling rate of the molten calcium carbide deep within the stone pot by turning it over, resulting in more uniform and rapid cooling of the molten calcium carbide and improving the efficiency of waste heat recovery per unit time.

[0014] This invention utilizes an irregular quadrilateral linkage design. After the calcium carbide liquid is loaded onto the transfer assembly and placed in the unloading area, the stone pot is hoisted and unloaded. When the stone pot is lifted, the fourth linkage is raised upwards under the elastic action of the spring. Since LAB < LCD < LAD < LBC, the second linkage is quickly pushed upwards under the transmission action of the third linkage, thereby removing the tumbling blade inside the stone pot, facilitating its use. Conversely, when reloading an empty stone pot, the pressure of the fourth linkage at the bottom of the stone pot will quickly pull the second linkage downwards through the transmission action of the third linkage, thereby extending the tumbling blade into the stone pot. Through this simple transmission structure, the ease of use of the calcium carbide liquid forming and waste heat utilization equipment is improved.

[0015] This invention provides a first heat exchange coil installed on the inner wall of the tunnel and a second heat exchange coil installed on the inner wall of the exhaust chimney. Furthermore, based on Bernoulli's principle, by using fans placed at certain intervals, the airflow speed can be increased without changing the fan's operating power, thereby accelerating the cooling rate of the calcium carbide liquid and improving the efficiency of waste heat recovery. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 for Figure 1Another perspective diagram of the structure; Figure 3 This is a schematic diagram of the transfer component structure of the present invention; Figure 4 for Figure 3 Another perspective diagram of the structure; Figure 5 This is a schematic diagram of the structure of some of the transfer components of the present invention; Figure 6 for Figure 5 Another perspective diagram of the structure; Figure 7 This is a schematic diagram of a portion of the waste heat utilization components of the present invention; Figure 8 This is a schematic diagram of the internal structure of the tunnel according to the present invention; Figure 9 This is a simplified schematic diagram of a waste heat utilization unit for calcium carbide liquid provided in an embodiment of the present invention.

[0017] Among them, 1. Track; 2. Calcium carbide furnace; 3. Transfer assembly; 301. Electric traction locomotive; 302. Chassis; 303. Wheel axle; 304. Base; 305. Stone pot; 306. First connecting rod; 307. Second connecting rod; 308. First rotating shaft; 309. Tilting blade; 310. Third connecting rod; 311. Fourth connecting rod; 312. Base; 313. Spring; 314. First sprocket; 315. Second sprocket; 316. 317. Third sprocket; 318. Fourth sprocket; 319. Second shaft; 4. Waste heat recovery assembly; 401. Tunnel; 402. Electric door; 403. Blower pipe; 404. First fan; 405. First heat exchange coil; 406. Exhaust chimney; 407. Second heat exchange coil; 408. Second fan; 5. Steam turbine power station; 501. Steam boiler; 502. Steam turbine; 503. Generator set; 504. Condenser. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Example: Figure 1-9As shown, this embodiment of the invention provides a calcium carbide liquid forming and calcium carbide liquid waste heat utilization device, including a calcium carbide liquid forming unit and a calcium carbide liquid waste heat utilization unit. The calcium carbide liquid forming unit includes a track 1, a calcium carbide furnace 2, and a transfer component 3. The track 1 is laid in a closed loop on the processing site. The calcium carbide furnace 2 is located at one point along the track 1. The transfer component 3 can travel along the track 1 and is used to transport the calcium carbide liquid produced in the calcium carbide furnace 2 away for cooling and forming. The calcium carbide liquid waste heat utilization unit includes a waste heat utilization component 4 and a steam turbine power station 5. The waste heat utilization component 4 is located outside the track 1 and close to the calcium carbide furnace 2. It is used to recover the heat of the calcium carbide liquid transferred in the transfer component 3 and use the heat to produce part of the high-temperature steam required for power generation by the steam turbine power station 5. The steam turbine power station 5 is used to provide electrical energy to the calcium carbide liquid forming unit.

[0020] In this embodiment, reference Figure 3-6 The transfer assembly 3 includes multiple frames 302 connected end to end. Axles 303 are rotatably connected to both sides of the interior of each frame 302. Wheels that cooperate with the track 1 are provided at both ends of each axle 303. A base 304 is mounted on one side of the top of each frame 302. A notch is provided on one edge of the base 304. A stone pot 305 is mounted on the top of the base 304. A first connecting rod 306 is provided on the other side of the top of the frame 302. A second connecting rod 307 is rotatably connected above the first connecting rod 306. A first rotating shaft 308 is rotatably connected to one end of the second connecting rod 307. Multiple tumbling blades 309 are evenly installed at one end of the first rotating shaft 308. The second connecting rod 307 is rotatably connected to the third connecting rod 310 on the side close to the first connecting rod 306. The fourth connecting rod 311 is rotatably connected below the third connecting rod 310. One end of the fourth connecting rod 311 is rotatably connected to the middle of the first connecting rod 306. The other end of the fourth connecting rod 311 extends into the recess at the edge of the base 304. A base 312 is installed inside the frame 302 below the recess at the edge of the base 304. A spring 313 is installed on the top of the base 312.

[0021] In this embodiment, reference Figure 4 The transfer assembly 3 also includes an electric traction head 301, which is mounted on the track 1 and serves as a traction frame 302.

[0022] In this embodiment, reference Figure 1-2 The transfer component 3 also includes a ground rail power supply system, which is laid along the direction of the track 1 and is used to provide energy for the electric traction head 301.

[0023] In this embodiment, reference Figure 5-6 The stone pot 305 has multiple end lugs installed around its exterior for hoisting purposes.

[0024] In this embodiment, refer again Figure 5-6Point A is the connection axis between the first link 306 and the second link 307. Point B is the connection axis between the second link 307 and the third link 310. Point C is the connection axis between the third link 310 and the fourth link 311. Point D is the connection axis between the fourth link 311 and the first link 306. The distances between A, B, C, and D satisfy the following condition: LAB < LCD < LAD < LBC.

[0025] As described above, after the transfer assembly 3 loads calcium carbide liquid into the unloading area, it hoists and unloads the stone pot 305. When lifting the stone pot 305, the fourth connecting rod 311 is lifted upward under the elastic action of the spring 313. Since LAB < LCD < LAD < LBC, the second connecting rod 307 is quickly pushed upward under the transmission action of the third connecting rod 310, thereby removing the tumbling blade 309 inside the stone pot 305 for easier use. Conversely, when reloading an empty stone pot 305, when the fourth connecting rod 311 is pressed at the bottom of the stone pot 305, the second connecting rod 307 will be quickly pulled down downward through the transmission action of the third connecting rod 310, thereby extending the tumbling blade 309 into the stone pot 305.

[0026] In this embodiment, refer again Figure 5-6 The transfer assembly 3 also includes a first sprocket 314, a second sprocket 315, a third sprocket 316, a fourth sprocket 317, and a second shaft 318. The first sprocket 314 is installed outside one side axle 303. The second shaft 318 is rotatably connected to one end of the second connecting rod 307. The connecting shaft between the second shaft 318, the second connecting rod 307, and the first connecting rod 306 is on the same central axis. The second sprocket 315 is installed outside one end of the second shaft 318. The first sprocket 314 and the second sprocket 315 are connected by a chain. The third sprocket 316 is installed outside the other end of the second shaft 318. The fourth sprocket 317 is installed in the middle outside the first shaft 308. The third sprocket 316 and the fourth sprocket 317 are connected by a chain.

[0027] As described above, when the transfer component 3 moves, it drives the wheels to roll, which in turn drives the wheel axle 303 to rotate, which in turn drives the first sprocket 314 to rotate. Through the chain transmission, the second sprocket 315, the third sprocket 316, and the fourth sprocket 317 are driven to rotate in sequence, which in turn drives the tumbling paddle 309 to rotate, thereby agitating the calcium carbide liquid in the stone pot 305. By agitating, the cooling speed of the calcium carbide liquid deep in the stone pot 305 is accelerated, making the cooling of the calcium carbide liquid more uniform and faster, and also improving the efficiency of waste heat recovery per unit time.

[0028] In this embodiment, reference Figure 7-9The waste heat utilization component 4 includes a tunnel 401, which is erected outside the track 1. Multiple air ducts 403 are connected to both sides of one end of the tunnel 401. The central axis of the air ducts 403 forms a certain angle with the central axis of the tunnel 401. A first fan 404 is installed at one end of each air duct 403, and there is a certain distance between the first fan 404 and the air duct 403. A first heat exchange coil 405 is installed on the inner wall of the tunnel 401. A drain is connected to the top of the other end of the tunnel 401. The exhaust chimney 406 has a second heat exchange coil 407 on its inner wall and a second fan 408 at its bottom end. The second fan 408 is at a certain distance from the exhaust chimney 406. The inlets of the first heat exchange coil 405 and the second heat exchange coil 407 are both connected to the steam liquefied water return pipe of the steam turbine power plant 5. The outlets of the first heat exchange coil 405 and the second heat exchange coil 407 are both connected to the inlet of the steam boiler 501 of the steam turbine power plant 5.

[0029] In this embodiment, reference Figure 7 The angle between the central axis of the blower duct 403 and the central axis of the tunnel 401 is set as ∠1, 30°≤∠1≤60°. This angle design improves the efficiency of airflow to the exhaust chimney 406.

[0030] In this embodiment, reference Figure 8 The distance between the first fan 404 and the blower pipe 403 is set as L1, 1m≤L1≤3m, and the distance between the second fan 408 and the exhaust chimney 406 is set as L2, 1m≤L2≤3m.

[0031] As mentioned above, based on Bernoulli's principle, by placing fans at certain intervals, the airflow speed can be increased without changing the fan's operating power, thereby accelerating the cooling rate of the calcium carbide liquid and improving the efficiency of waste heat recovery.

[0032] In this embodiment, reference Figure 7 Electric doors 402 are installed at both ends of tunnel 401 to improve insulation performance and prevent heat loss.

[0033] Furthermore, this embodiment also provides a method for using the calcium carbide liquid forming and calcium carbide liquid waste heat utilization equipment, including the following steps: Step 1: After loading the molten calcium carbide produced by the calcium carbide furnace 2, the transfer component 3 travels along track 1 into tunnel 401.

[0034] Step 2: The first fan 404 operates, blowing cold air from outside into the tunnel 401 to cool the calcium carbide liquid loaded in the stone pot 305. The second fan 408 operates to expel the hot air accumulated inside the tunnel 401 through the exhaust chimney 406 to accelerate cooling. As the air flows inside the tunnel 401 and carries away the heat from the calcium carbide liquid, the air will heat up and then exchange heat with the liquid inside the first heat exchange coil 405 and the second heat exchange coil 407 in sequence. The heated liquid enters the steam turbine power plant 5 to generate electricity, which is then used to power the calcium carbide liquid forming unit. The cooled air will be discharged from the exhaust chimney 406.

[0035] In this embodiment, one mode of operation of the calcium carbide liquid waste heat utilization unit is as follows: Figure 9 As shown, the steam boiler 501 heats the liquid into high-temperature and high-pressure steam, which is then transported through pipelines to the inlet of the steam turbine 502, driving the steam turbine 502 to rotate, which in turn drives the generator set 503 to generate electricity. The generated electricity is transmitted to the substation and then supplies power to the ground rail power supply system. The waste steam after driving the steam turbine 502 to rotate is liquefied by the condenser 504. Some of the steam liquefied water flows into the first heat exchange coil 405 and the second heat exchange coil 407, while some of the steam liquefied water flows directly into the steam boiler 501 to produce steam again.

[0036] Step 3: The transfer component 3, loaded with calcium carbide liquid, moves slowly forward in tunnel 401 until the calcium carbide liquid is cooled.

[0037] Step 4: As the transfer component 3 moves forward, the rolling wheels drive the axle 303 to rotate, which in turn drives the first sprocket 314 to rotate. Through the chain transmission, the tumbling paddle 309 is finally driven to rotate, so as to tumble the calcium carbide liquid in the stone pot 305. By tumbling, the cooling speed of the calcium carbide liquid deep in the stone pot 305 is accelerated.

[0038] Step 5: The transfer assembly 3, loaded with calcium carbide liquid, continues to move forward to the unloading area. The stone pot 305 is then hoisted and unloaded. When the stone pot 305 is lifted, the fourth connecting rod 311 is lifted upward under the elastic action of the spring 313. Then, under the transmission action of the third connecting rod 310, the second connecting rod 307 is quickly lifted upward, thereby removing the tumbling blade 309 inside the stone pot 305. The stone pot 305 will be left to stand until the calcium carbide liquid cools and solidifies. The empty transfer assembly 3 will then reload the empty stone pot 305 to continue loading the produced calcium carbide liquid at the calcium carbide furnace 2.

[0039] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for forming calcium carbide liquid and utilizing waste heat from calcium carbide liquid, comprising a calcium carbide liquid forming unit and a calcium carbide liquid waste heat utilization unit, characterized in that: The calcium carbide liquid forming unit includes a track (1), a calcium carbide furnace (2), and a transfer component (3). The track (1) is laid in a closed loop on the processing site. The calcium carbide furnace (2) is located at one point along the track (1). The transfer component (3) can travel along the track (1) and is used to transport the calcium carbide liquid produced in the calcium carbide furnace (2) away for cooling and forming. The calcium carbide liquid waste heat utilization unit includes a waste heat utilization component (4) and a steam turbine power station (5). The waste heat utilization component (4) is located outside the track (1) and close to the calcium carbide furnace (2). It is used to recover the heat of the calcium carbide liquid transferred in the transfer component (3) and use the heat to produce part of the high-temperature steam required for the steam turbine power station (5) to generate electricity. The steam turbine power station (5) is used to provide electrical energy to the calcium carbide liquid forming unit. The transfer assembly (3) includes multiple frames (302) connected end to end. Axles (303) are rotatably connected to both sides of the interior of each frame (302). Wheels that cooperate with the track (1) are provided at both ends of each axle (303). A base (304) is mounted on one side of the top of each frame (302). A notch is provided on one side of the edge of the base (304). A stone pot (305) is provided on the top of the base (304). A first connecting rod (306) is provided on the other side of the top of the frame (302). A second connecting rod (307) is rotatably connected above the first connecting rod (306). One end of the second connecting rod (307) is rotatably connected to a first rotating shaft (307). 8) A plurality of tumbling blades (309) are evenly installed at one end of the first rotating shaft (308). The second connecting rod (307) is rotatably connected to the third connecting rod (310) on the side close to the first connecting rod (306). The third connecting rod (310) is rotatably connected to the lower part of the fourth connecting rod (311). One end of the fourth connecting rod (311) is rotatably connected to the middle part of the first connecting rod (306). The other end of the fourth connecting rod (311) extends into the recess at the edge of the base (304). The frame (302) is equipped with a base (312) located below the recess at the edge of the base (304). A spring (313) is installed on the top of the base (312). The transfer assembly (3) further includes a first sprocket (314), a second sprocket (315), a third sprocket (316), a fourth sprocket (317), and a second shaft (318). The first sprocket (314) is installed outside the axle (303) on one side. The second shaft (318) is rotatably connected to one end of the second connecting rod (307). The connecting shaft between the second shaft (318), the second connecting rod (307), and the first connecting rod (306) is on the same central axis. The second sprocket (315) is installed outside one end of the second shaft (318). The first sprocket (314) and the second sprocket (315) are connected by a chain. The third sprocket (316) is installed outside the other end of the second shaft (318). The fourth sprocket (317) is installed in the middle outside the first shaft (308). The third sprocket (316) and the fourth sprocket (317) are connected by a chain. The waste heat utilization component (4) includes a tunnel (401) erected outside the track (1). Multiple air ducts (403) are connected to both sides of one end of the tunnel (401). The central axis of each air duct (403) forms a certain angle with the central axis of the tunnel (401). A first fan (404) is provided at one end of each air duct (403), and there is a certain distance between the first fan (404) and the air duct (403). A first heat exchange coil (405) is provided on the inner wall of the tunnel (401). The top of the other end of the tunnel (401) is connected to... There is an exhaust chimney (406), and the inner wall of the exhaust chimney (406) is provided with a second heat exchange coil (407). The bottom port of the exhaust chimney (406) is provided with a second fan (408), and there is a certain distance between the second fan (408) and the exhaust chimney (406). The inlets of the first heat exchange coil (405) and the second heat exchange coil (407) are both connected to the steam liquefied water return pipeline of the steam turbine power plant (5), and the outlets of the first heat exchange coil (405) and the second heat exchange coil (407) are both connected to the inlet of the steam boiler (501) of the steam turbine power plant (5).

2. The equipment for calcium carbide liquid forming and waste heat utilization according to claim 1, characterized in that: The transfer assembly (3) also includes an electric traction vehicle head (301), which is mounted on the track (1) and serves as a traction frame (302).

3. The equipment for calcium carbide liquid forming and waste heat utilization according to claim 2, characterized in that: The transfer component (3) also includes a ground rail power supply system, which is laid along the track (1) to provide energy for the electric traction locomotive (301).

4. The equipment for calcium carbide liquid forming and waste heat utilization according to claim 1, characterized in that: The stone pot (305) has multiple end lugs installed around its outer perimeter for hoisting purposes.

5. The equipment for calcium carbide liquid forming and waste heat utilization according to claim 1, characterized in that: Point A is set at the connection axis between the first link (306) and the second link (307), point B is set at the connection axis between the second link (307) and the third link (310), point C is set at the connection axis between the third link (310) and the fourth link (311), and point D is set at the connection axis between the fourth link (311) and the first link (306). The distances between A, B, C, and D satisfy the following condition: LAB < LCD < LAD < LBC.

6. The equipment for calcium carbide liquid forming and waste heat utilization according to claim 1, characterized in that: The angle between the central axis of the blower pipe (403) and the central axis of the tunnel (401) is set as ∠1, 30°≤∠1≤60°.

7. The equipment for calcium carbide liquid forming and waste heat utilization according to claim 1, characterized in that: The distance between the first fan (404) and the blower pipe (403) is set as L1, 1m≤L1≤3m, and the distance between the second fan (408) and the exhaust chimney (406) is set as L2, 1m≤L2≤3m.

8. The equipment for calcium carbide liquid forming and waste heat utilization according to claim 1, characterized in that: Electric doors (402) are installed at both ends of the tunnel (401).

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