Double-power-source device and emergency system of coke car

Abstract

The utility model relates to the technical field of coke oven machinery, in particular to a double-power-source device and an emergency system of a coke car. Oil outlets of the gas-liquid booster pump and the hydraulic pump are connected with a node, and the node is connected with an external hydraulic system; a high-pressure ball valve is further arranged between the gas-liquid booster pump and the node; the gas-liquid booster pump is communicated with the gas storage tank, and a first stop valve is arranged between the gas storage tank and the gas-liquid booster pump; when the hydraulic pump stops working, the first stop valve is opened, and the gas storage tank provides power for the gas-liquid booster pump. According to the device, after the hydraulic pump cannot provide power for the hydraulic system due to a circuit fault, residual gas in the gas storage tank is pressurized under the action of the gas-liquid booster pump, so that the power of the hydraulic system is recovered, production halt accidents caused by equipment damage can be reduced, a mechanism is prevented from being burnt out by high temperature due to a power failure fault, and the service life of the hydraulic system is prolonged. Fault influence time is reduced, operation is simple and convenient, and human resources can be effectively optimized.

Description

Technical Field

[0001] This utility model relates to the field of coke oven machinery technology, and in particular to a dual power source device and emergency system for a coal and coke car. Background Technology

[0002] The coke oven car includes coke pusher cars, coke catcher cars, and coal feeder cars. During normal production, the coal feeder car receives raw coal from the coal tower and feeds it to the carbonization chambers via four screw feeders. The coke pusher car's pusher rod system pushes mature coke from the carbonization chamber into the coke guide grid; it includes a gate loader system, a coal leveling system, and a coke pushing system. The coke catcher car is mainly responsible for guiding the red-hot coke pushed by the coke pusher car into the coke pot; it includes a coke guiding system, a gate loader system, and a dust removal system. This is the coke oven coking system of a coking plant. With technological advancements, the automation level of coke oven car equipment is increasing. Key equipment such as the coke guide grid, gate loader, cover opener, and dust removal guide sleeve are all automated through hydraulic systems. The coke oven car's hydraulic system uses electric motors to convert electrical energy into mechanical and potential energy for each actuator, driving the coke oven car to operate normally.

[0003] The emergency equipment in the hydraulic system of current coal and coke trucks is a hand-cranked pump. By repeatedly cranking a lever, oil in the tank can be pumped out to provide emergency power. However, the hand-cranked pump is small in size and requires continuous manual cranking to provide new power to the hydraulic system.

[0004] In metallurgical industries like coking plants, the environments in which equipment operates are generally harsh. Coke ovens produce coke through high-temperature dry distillation, and the vehicles serving them operate in high-temperature, high-dust environments. During use, thermal expansion and contraction of the coke ovens, corrosion of electrical circuits, and coke dust accumulation can all lead to poor contact and short circuits in the vehicles. Simultaneously, electrical equipment operating in high-temperature environments ages rapidly, and circuit breaker trips are frequent, rendering the vehicles unusable. When a circuit failure occurs and power cannot be quickly restored, the only current solution is for personnel to manually retract the equipment using hand pumps. However, components such as the gate hoist, coke grid, and dust removal push rods use large hydraulic cylinders. Slowly retracting these components by hand pumps often results in them being burned out. This is because many critical pieces of equipment on the coke truck directly contact red-hot coke at around 1000°C or flames exceeding 1000°C during normal operation. A sudden power outage can paralyze these components in the high-temperature zone, causing them to burn out and resulting in significant economic losses. Currently, the system can only be powered by workers taking turns manually cranking it in high-temperature environments, which increases the risk of heatstroke for employees and consumes a lot of human resources. Utility Model Content

[0005] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0006] In view of the problem that the hydraulic system has no power source after a circuit failure in the above or existing technologies, this utility model is proposed.

[0007] Therefore, the purpose of this utility model is to provide a dual power source device for coal and coke trucks. To solve the above-mentioned technical problems, this utility model provides the following technical solution: the oil outlets of both the gas-liquid booster pump and the hydraulic pump are connected to a node, and the node is connected to an external hydraulic system; a high-pressure ball valve is also provided between the gas-liquid booster pump and the node; the gas-liquid booster pump is connected to the gas storage tank, and a first shut-off valve is provided between the gas storage tank and the gas-liquid booster pump; when the hydraulic pump stops working, the first shut-off valve opens, and the gas storage tank provides power to the gas-liquid booster pump.

[0008] As a preferred embodiment of the dual power source device for the coal and coke car described in this utility model, the oil inlet of the gas-liquid booster pump is connected to the oil tank and is fixedly installed on the upper side of the oil tank, the oil outlet of the gas-liquid booster pump is also connected to the oil tank, and an overflow valve is also provided between the node and the oil tank.

[0009] As a preferred embodiment of the dual power source device for the coal and coke car described in this utility model, a cooling pipe and a drying pipe are further provided between the gas storage tank and the gas-liquid booster pump, and the cooling pipe and the drying pipe are respectively located on both sides of the first shut-off valve.

[0010] As a preferred embodiment of the dual power source device for the coal and coke car described in this utility model, the gas storage tank always maintains a set pressure value, and the gas-liquid booster pump has a hydraulic system that flows to the outside at a set pressure.

[0011] As a preferred embodiment of the dual power source device for the coal and coke car described in this utility model, the cooling pipe is vertically arranged above the gas storage tank, and the drying pipe is U-shaped and contains a desiccant.

[0012] To solve the above-mentioned technical problems, the present invention also provides the following technical solution: an emergency system for a coal and coke car includes the above-mentioned dual power source device for a coal and coke car, and further includes an actuator, wherein the actuator includes a first oil circuit, a second oil circuit and a third oil circuit, wherein the first oil circuit, the second oil circuit and the third oil circuit are connected in parallel and are all connected to the oil cylinder.

[0013] In a preferred embodiment of the emergency system for the coal and coke car described in this utility model, the first oil circuit includes a first directional valve, a pressure reducing valve, a first hydraulic lock, and a first speed regulating valve. The pressure port of the first directional valve is connected to the hydraulic pump, the return port of the first directional valve is connected to the oil tank, the outlet of the first directional valve is connected to the inlet of the pressure reducing valve, the outlet of the pressure reducing valve is connected to the inlet of the first hydraulic lock, the outlet of the first hydraulic lock is connected to the inlet of the first speed regulating valve, and the outlet of the first speed regulating valve is connected to the oil cylinder.

[0014] In a preferred embodiment of the emergency system for the coal and coke car described in this utility model, the second oil circuit includes a second directional valve, a second speed regulating valve, and a second hydraulic lock. The pressure port of the second directional valve is connected to the hydraulic pump, the return port of the second directional valve is connected to the oil tank, the outlet of the second directional valve is connected to the inlet of the second speed regulating valve, the outlet of the second speed regulating valve is connected to the inlet of the second hydraulic lock, and the outlet of the second hydraulic lock is connected to the oil cylinder.

[0015] As a preferred embodiment of the emergency system for the coal and coke car described in this utility model, the third oil circuit includes a third directional valve, a third hydraulic lock, and a third speed control valve. The pressure port of the third directional valve is connected to the hydraulic pump, the return port of the third directional valve is connected to the oil tank, the inlet of the third hydraulic lock is connected to the outlet of the third directional valve, the outlet of the third hydraulic lock is connected to the inlet of the third speed control valve, and the outlet of the third speed control valve is connected to the oil cylinder.

[0016] As a preferred embodiment of the emergency system for coal and coke trucks described in this utility model, a second shut-off valve is further provided between the oil inlet of the gas-liquid booster pump and the oil tank, a third shut-off valve is further provided between the node and the first oil circuit and the second oil circuit, and a fourth shut-off valve is further provided between the node and the third oil circuit.

[0017] The beneficial effects of this utility model are as follows: When the hydraulic pump fails to provide power to the hydraulic system due to a circuit failure, the device can restore power to the hydraulic system by pressurizing the remaining gas in the gas tank through the action of the gas-liquid booster pump. This can reduce production stoppages caused by equipment damage, and the equipment can be quickly retrieved after a failure. Once power is restored, the vehicle can start production directly, reducing the downtime caused by the failure. The device is simple and convenient to operate, has low cost, and can be operated by one person, effectively optimizing human resources. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0019] Figure 1 This is a schematic diagram of the overall emergency system for coal and coke trucks.

[0020] Figure 2 for Figure 1 An enlarged view of the first oil passage in the middle.

[0021] Figure 3 for Figure 1 Enlarged view of the second oil passage.

[0022] Figure 4 for Figure 1 Enlarged view of the third oil passage. Detailed Implementation

[0023] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0024] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0026] Reference Figure 1 This embodiment provides a dual power source device for a coal and coke car, which enables the hydraulic system to quickly restore power after a circuit failure.

[0027] Specifically, the oil outlets of both the pneumatic-hydraulic booster pump 1 and the hydraulic pump 2 are connected to node K, which is connected to an external hydraulic system. A high-pressure ball valve 91 is also installed between the pneumatic-hydraulic booster pump 1 and node K. The pneumatic-hydraulic booster pump 1 is connected to the air storage tank 4, and a first shut-off valve 6 is installed between the air storage tank 4 and the pneumatic-hydraulic booster pump. When the hydraulic pump 2 stops working, the first shut-off valve 6 opens, and the air storage tank 4 provides power to the pneumatic-hydraulic booster pump 1. When there is no circuit failure, the hydraulic pump 2 works normally to provide power to the hydraulic system. When the circuit fails, the hydraulic pump 2 loses power and cannot provide power to the hydraulic system. At this time, the pneumatic-hydraulic booster pump 1 comes into play. The remaining gas in the air storage tank 4 enters the pneumatic-hydraulic booster pump 1 through the pipeline and is pressurized, so that the oil in the pneumatic-hydraulic booster pump 1 can be transmitted to the hydraulic system, restoring power to the power-damaged hydraulic system and converting the gas energy into the mechanical energy required by the various actuators of the hydraulic system.

[0028] Furthermore, the inlet of the gas-hydraulic booster pump 1 is connected to the oil tank 8 and is fixedly installed on the upper side of the oil tank 8. The outlet of the gas-hydraulic booster pump 1 is also connected to the oil tank 8. A high-pressure ball valve 91 and a relief valve 92 are also installed between the outlet of the gas-hydraulic booster pump 1 and the oil tank 8. The gas-hydraulic booster pump 1 draws hydraulic oil from the oil tank 8 and then pushes the hydraulic oil into the hydraulic system by pressurizing it with gas. A second shut-off valve is also installed between the inlet of the gas-hydraulic booster pump 1 and the oil tank 8. The other end of the second shut-off valve is connected to an M16 oil pipe connector. The M16 oil pipe connector extends 150mm above the bottom of the oil tank 8. An M16 hydraulic hose is used to connect the second shut-off valve and the oil pipe connector. The outlet of the gas-hydraulic booster pump 1 is welded with a DN15 stainless steel pipe. The other end of the pipe is welded with a high-pressure ball valve 91. The other end of the high-pressure ball valve 91 is welded with a DN15 pipe that connects to the inlet pipe of the relief valve 92.

[0029] The gas storage tank 4 is connected to the gas-liquid booster pump by a cooling pipe 5 and a drying pipe 7. The cooling pipe 5 and the drying pipe 7 are located on both sides of the first shut-off valve 6, and the gas storage tank 4 maintains the set pressure value at all times. The cooling pipe 5 is vertically installed above the gas storage tank 4, with a vertical length of 500mm to 1000mm. The drying pipe 7 is U-shaped and filled with desiccant.

[0030] Preferably, the high-pressure ball valve 91 has a diameter of 15mm and is set to normally closed to avoid affecting the normal use of the source hydraulic system under normal circumstances.

[0031] Preferably, the gas-liquid booster pump 1 adopts a 1:12 booster ratio, and the gas-liquid booster pump 1 always maintains a pressure of 5 MPa when providing power to the hydraulic system, and the excess pressure flows back to the oil tank 8 through the relief valve 92.

[0032] Preferably, the pipeline between the air tank 4 and the air-liquid booster pump 1 uses a DN15 galvanized pipe, and the oil tank 8 and the overflow valve 92 connected to the inlet and outlet of the air-liquid booster pump 1 use flexible hoses to effectively prevent the vibration generated by the air-liquid booster pump 1 from affecting the original hydraulic system.

[0033] During use, the remaining gas in the gas storage tank 4 is cooled and dehumidified by the cooling pipe 5, and the cooled water naturally flows back into the gas storage tank 4. The gas continues to be dried and dehumidified by the drying pipe 7. The dried gas enters the gas-liquid booster pump 1 to the air inlet of the gas-liquid booster pump 1. Under the conversion and boosting of the gas-liquid booster pump 1, hydraulic oil is drawn from the oil tank 8 through the oil inlet of the gas-liquid booster pump 1 and pumped into the hydraulic system from the oil outlet of the gas-liquid booster pump 1 to provide new power to the hydraulic system. At this time, the first shut-off valve 6, the second shut-off valve, the high-pressure ball valve 91, and the overflow valve 92 are all in the open state.

[0034] In summary, the redesign of the power system enabled the hydraulic system to regain power after a circuit failure, reducing economic losses and minimizing the duration of the malfunction.

[0035] As an optional embodiment, unlike the previous embodiment, this embodiment provides an actuator 3.

[0036] Specifically, refer to Figures 1-4 The actuator 33 includes a first oil circuit 31, a second oil circuit 32, and a third oil circuit 33, which are connected in parallel and all connected to the hydraulic cylinder 34. The first oil circuit 31 includes a first directional valve 311, a pressure reducing valve 312, a first hydraulic lock 313, and a first speed regulating valve 314. The pressure port of the first directional valve 311 is connected to the hydraulic pump 2, the return port of the first directional valve 311 is connected to the oil tank 8, the outlet of the first directional valve 311 is connected to the inlet of the pressure reducing valve 312, the outlet of the pressure reducing valve 312 is connected to the inlet of the first hydraulic lock 313, the outlet of the first hydraulic lock 313 is connected to the inlet of the first speed regulating valve 314, and the outlet of the first speed regulating valve 314 is connected to the hydraulic cylinder 34. The outlet of the first speed control valve 314 is divided into port A and port B. Port A of the first speed control valve is connected to the rodless chamber of the oil cylinder 34, and port B of the first speed control valve is connected to the rod chamber of the oil cylinder 34. When hydraulic oil is transmitted from port A of the first speed control valve to the rodless chamber, the piston rod extends. When hydraulic oil is transmitted from port B of the first speed control valve to the rod chamber, the piston rod retracts.

[0037] The second oil circuit 32 includes a second directional valve 321, a second speed control valve 322, and a second hydraulic lock 323. The pressure port of the second directional valve 321 is connected to the hydraulic pump 2, the return port of the second directional valve 321 is connected to the oil tank 8, the outlet of the second directional valve 321 is connected to the inlet of the second speed control valve 322, the outlet of the second speed control valve 322 is connected to the inlet of the second hydraulic lock 323, and the outlet of the second hydraulic lock 323 is connected to the cylinder 34. When oil enters the rodless chamber of the cylinder 34 through port A of the hydraulic lock 323, the piston rod extends; when oil enters the rod chamber of the cylinder 34 through port B of the hydraulic lock 323, the piston rod retracts.

[0038] The third oil circuit 33 includes a third directional valve 331, a third hydraulic lock 332, and a third speed control valve 333. The pressure port of the third directional valve 331 is connected to the hydraulic pump 2, and the return port of the third directional valve 331 is connected to the oil tank 8. The inlet of the third hydraulic lock 332 is connected to the outlet of the third directional valve 331, and the outlet of the third hydraulic lock 332 is connected to the inlet of the third speed control valve 333. The outlet of the third speed control valve 333 is connected to the cylinder 34. When oil enters the rodless chamber of the cylinder 34 through port A of the third speed control valve 333, the piston rod extends. When oil enters the rodless chamber of the cylinder 34 through port B of the third speed control valve 333, the piston rod retracts.

[0039] A third shut-off valve is installed before the first oil passage 31 and the second oil passage 32, and a fourth shut-off valve is installed before the third oil passage 33. The outlet of the high-pressure ball valve 91 is connected to the inlet of the third and fourth shut-off valves. The first directional valve 311, the second directional valve 321, and the third directional valve 331 are used to control the direction of hydraulic oil, causing the cylinder to extend or retract. The pressure reducing valve 312 is used to reduce pressure to protect downstream components. The first hydraulic lock 313, the second hydraulic lock 323, and the third hydraulic lock 332 are used to prevent the cylinder 34 from moving due to external forces, improving stability. The first speed regulating valve 314, the second speed regulating valve 322, and the third speed regulating valve 333 are used to control the oil flow rate and adjust the movement speed of the cylinder 34.

[0040] During use, since the hydraulic pump 2 cannot provide power to the actuator 33, the pneumatic-hydraulic booster pump 1 delivers hydraulic oil to the actuator 33. The hydraulic oil is delivered to the pressure ports of the first directional valve 311, the second directional valve 321, and the third directional valve 331 through the high-pressure ball valve 91. The hydraulic oil passing through the first directional valve 311 passes through the pressure reducing valve 312, the first hydraulic lock 313, and the first speed regulating valve before finally entering the cylinder 34. At the same time, the hydraulic oil passing through the second directional valve 321 passes through the second speed regulating valve 322 and the second hydraulic lock 323 before entering the cylinder 34. The hydraulic oil passing through the third directional valve 331 passes through the third hydraulic lock 332 and the third speed regulating valve 333 before entering the cylinder 34. When the control valve in one of the circuits fails, the other circuit can still work normally, ensuring that the entire actuator 3 can work normally.

[0041] In summary, the configuration of each oil circuit in actuator 3 increases the safety and reliability of the entire system, improves its anti-interference ability, and enables it to meet different load and speed requirements.

[0042] As an optional embodiment, this embodiment provides an emergency system for coal and coke trucks.

[0043] Specifically, the emergency system for the coke oven truck includes a gas-liquid booster pump 1, an air tank 44, a hydraulic system 3, and an oil tank 8. The air tank 44 is connected to the air inlet of the gas-liquid booster pump 1, the oil tank 8 is connected to the oil inlet of the gas-liquid booster pump 1, and the oil outlet of the gas-liquid booster pump 1 is connected to the hydraulic system 3. The air tank 44, as a component of the coke oven truck itself, is supplied with compressed air by an air compressor. The air compressor is equipped with a low-pressure gas alarm device. The internal pressure of the air tank 44 is set at 0.5 MPa, and it will replenish when the air pressure in the air tank 44 is low.

[0044] Furthermore, under normal circumstances, the compressed air in the air storage tank 4 is delivered to the pneumatic actuator of the air hammer through a pipeline. When it is necessary to tighten the small furnace door, the compressed air pushes the piston rod of the air hammer, generating an impact force to tighten the small furnace door. When it is necessary to loosen the small furnace door, the compressed air flows in the opposite direction, the piston rod of the air hammer retracts, and the small furnace door is released, ensuring that the furnace door is sealed and preventing the leakage of high-temperature gas and dust.

[0045] Furthermore, the compressed air in the air tank 4 can also be transported through a pipeline to the pneumatic actuator of the gate valve. The compressed air drives the pneumatic actuator to open or close the gate. By adjusting the pressure and flow rate of the compressed air, the degree of opening and closing of the gate can be precisely controlled.

[0046] Furthermore, the compressed air in the air tank 4 is transported through a pipeline to the pneumatic nozzle or pneumatic brush of the cleaning device. The compressed air is ejected from the nozzle at high speed to form an airflow that blows away the dust and coke powder on the vehicle surface.

[0047] In summary, the gas storage tank 4, as the original mechanism of the coal and coke car, can drive the small furnace door clamping air hammer, gate valve, and vehicle cleaning. At the same time, it can be used in conjunction with the gas-liquid booster pump 1 as a backup power source for the power system, which improves the utilization rate of the mechanism, the energy utilization rate, the system reliability, and the emergency response speed.

[0048] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0049] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0050] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0051] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A coal coke car dual power source device, characterized in that: an oil outlet of a gas-liquid booster pump (1) and an oil outlet of a hydraulic pump (2) are connected with a node (K), and the node (K) is connected with an external hydraulic system; a high-pressure ball valve (91) is further arranged between the gas-liquid booster pump (1) and the node (K); the gas-liquid booster pump (1) is communicated with a gas storage tank (4), and a first stop valve (6) is arranged between the gas storage tank (4) and the gas-liquid booster pump; when the hydraulic pump (2) stops working, the first stop valve (6) is opened, and the gas storage tank (4) provides power for the gas-liquid booster pump (1). The oil inlet of the gas-liquid booster pump (1) is communicated with an oil tank (8) and is fixedly arranged on the upper side of the oil tank (8), and the oil outlet of the gas-liquid booster pump (1) is also communicated with the oil tank (8), and an overflow valve (92) is further arranged between the node (K) and the oil tank (8). The gas storage tank (4) and the gas-liquid booster pump are further provided with a cooling pipe (5) and a drying pipe (7), and the cooling pipe (5) and the drying pipe (7) are respectively located on both sides of the first stop valve (6). The gas storage tank (4) always maintains a set pressure value, and the gas-liquid booster pump (1) has a set pressure flowing to the external hydraulic system. The cooling pipe (5) is vertically arranged above the gas storage tank (4), the drying pipe (7) is in the shape of U and is internally provided with a drying agent.

2. The dual power source apparatus for a coke car according to claim 1, wherein: The coal coke car dual power source device according to any one of claims 1-5 further comprises an actuator (3).

3. The coal coke car dual power source apparatus according to claim 1 or 2, characterized by: The actuator (3) comprises a first oil path (31), a second oil path (32) and a third oil path (33), and the first oil path (31), the second oil path (32) and the third oil path (33) are in parallel and are all communicated with an oil cylinder (34).

4. The dual power source apparatus for a coke car as set forth in claim 3, characterized by: The first oil path (31) comprises a first reversing valve (311), a pressure reducing valve (312), a first hydraulic lock (313) and a first speed regulating valve (314), a pressure oil port of the first reversing valve (311) is communicated with the hydraulic pump (2), a return oil port of the first reversing valve (311) is communicated with the oil tank (8), an outlet of the first reversing valve (311) is communicated with an inlet of the pressure reducing valve (312), an outlet of the pressure reducing valve (312) is communicated with an inlet of the first hydraulic lock (313), an outlet of the first hydraulic lock (313) is communicated with an inlet of the first speed regulating valve (314), and an outlet of the first speed regulating valve (314) is communicated with the oil cylinder (34).

5. The coal-car dual power source device according to claim 3 or 4, characterized by: ​ 6. A coke car emergency system characterized by: ​ ​ 7. The coke car emergency system of claim 6, wherein: ​ 8. The coke car emergency system of claim 7, wherein: The second oil path (32) comprises a second reversing valve (321), a second speed regulating valve (322) and a second hydraulic lock (323), the pressure oil port of the second reversing valve (321) communicates with the hydraulic pump (2), the back oil port of the second reversing valve (321) communicates with the oil tank (8), the outlet of the second reversing valve (321) communicates with the inlet of the second speed regulating valve (322), the outlet of the second speed regulating valve (322) communicates with the inlet of the second hydraulic lock (323), and the outlet of the second hydraulic lock (323) communicates with the oil cylinder (34).

9. The coke car emergency system of claim 8, wherein: The third oil path (33) comprises a third reversing valve (331), a third hydraulic lock (332) and a third speed regulating valve (333), the pressure oil port of the third reversing valve (331) communicates with the hydraulic pump (2), the back oil port of the third reversing valve (331) communicates with the oil tank (8), the inlet of the third hydraulic lock (332) communicates with the outlet of the third reversing valve (331), the outlet of the third hydraulic lock (332) communicates with the inlet of the third speed regulating valve (333), and the outlet of the third speed regulating valve (333) communicates with the oil cylinder (34).

10. The coke drum emergency system of claim 9, wherein: A second stop valve is further arranged between the oil inlet of the gas-liquid booster pump (1) and the oil tank (8), a third stop valve is further arranged between the node (K) and the first oil path (31) and the second oil path (32), and a fourth stop valve is further arranged between the node (K) and the third oil path (33).

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