A low-cost and high-efficiency coking device with waste heat circulation

Abstract

The invention discloses a low-cost and high-efficiency coking device with waste heat circulation. The device adopts a structural design of multi-level waste gas heat circulation. The coking oven is arranged on a coking oven base plate. The coking oven is connected to a feed box through a second waste gas pipeline. A feed crawler is arranged between the coking oven and the feed box. The feed crawler passes through one side of the feed box. The second waste gas pipeline passes through the feed box. An exhaust port is arranged on the side of the feed box away from the coking oven. The second waste gas pipeline is connected to the exhaust port. A slag furnace is arranged on the lower surface of the coking oven base plate. The slag furnace and the coking oven are connected through a slag discharger. An induced draft fan is arranged on the top of the coking oven. The output end of the induced draft fan is connected to the first waste gas pipeline. The first waste gas pipeline passes through the slag furnace. The first waste gas pipeline passes through the coking oven and is connected to the second waste gas pipeline. A first motor is arranged on the upper surface of the coking oven base plate. A second motor is arranged on the side of the coking oven base plate away from the first motor. The device has the effect of waste heat circulation function.

Description

Technical Field

[0001] The invention relates to the technical field of environmental protection machinery, in particular to a low-cost and high-efficiency coking device with waste heat circulation. Background Art

[0002] The recovery of crude benzene from coke oven gas is a vital part of the chemical industry. During the coking process, a large amount of energy support is needed, otherwise coking cannot be completed, and crude benzene and other chemical substances cannot be obtained. Therefore, maintaining energy support has become the most critical step in the coking process. However, such a huge energy support is bound to have an impact on the energy market, and the energy waste generated is also imaginable. Gradually, people have discovered that the benefits brought by the high cost are not optimistic, and due to the long-term high temperature state, the coking device is accelerated to damage. Data show that the ideal working life of traditional coking devices is fifteen years, but due to frequent failures and corrosion problems during use, the actual service life is no more than three years, which is undoubtedly a huge blow to the chemical industry.

[0003] Gradually, people found that part of the energy conversion generated in the coking process is used for the machine, part is used for the coking process, and a large part is absorbed by the waste gas and residue generated in the coking process. After realizing this problem, people began to optimize the coking device. The Chinese invention patent specification CN201510098875.4 discloses a coking machine, which is characterized in that the coking machine is composed of a driving mechanism and a coking heating device, wherein the driving mechanism adopts a vibration mechanism, and the coking heating device is located above the driving mechanism and is connected to the driving mechanism. Compared with the existing coking oven, the coking machine is characterized by simple manufacturing process, simple coking method, low cost, high efficiency, and coking cost is within 50% of the existing coking oven, which has extremely high economic value. The coking machine adopts a closed dry coking method, which is simpler, cleaner and more environmentally friendly than the traditional coking method. This invention solves the dirty and messy characteristics of traditional machinery, and also saves energy output. However, there are still problems during use. During this process, the efficiency and effect of coking cannot be guaranteed, and the waste gas residue generated during coking still has an impact on the coking process, which also indirectly leads to a large amount of energy loss and the problem has not been solved. Summary of the invention

[0004] The object of the present invention is to provide a low-cost and high-efficiency coking device with waste heat circulation to solve the problems raised in the above-mentioned background technology.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: a low-cost and high-efficiency coking device with waste heat circulation, the coking device comprising: a coking oven, a feed box, an exhaust port, an induced draft fan, a feed crawler, a slag furnace, a slag discharger, a first exhaust gas pipeline, a second exhaust gas pipeline, a first motor, a second motor, and a coking oven base plate, the coking oven is arranged on the coking oven base plate, a heating device is arranged in the coking oven, the coking oven base plate provides support for the coking oven and provides an installation position for the coking oven support, the coking oven is connected to the feed box through a second exhaust gas pipeline, and the second exhaust gas pipeline is used to To transmit exhaust gas, a feeding crawler is arranged between the coking oven and the feeding box. The feeding crawler is powered by a motor to realize the transportation function. The feeding crawler passes through one side of the feeding box, and the feeding crawler transports the raw materials in the feeding box to the coking oven to realize the transportation function. The second exhaust gas pipe passes through the feeding box, and the waste heat in the exhaust gas is used to preheat the feeding box, thereby realizing the effect of waste gas utilization. The second exhaust gas pipe is connected to the exhaust port, and an exhaust port is arranged on the side of the feeding box away from the coking oven. The preheated exhaust gas will be discharged from the exhaust port to the feeding box, so as to make full use of the heat in the exhaust gas, and the preheated raw materials are also The slag furnace is connected to the coking furnace through a slag discharger, and the slag after coking will enter the slag furnace from the slag discharger, so as to achieve the effect of timely slag removal and avoid the influence of slag accumulation on the subsequent coking operation. An induced draft fan is arranged on the top of the coking furnace, which absorbs the waste gas generated by coking in the coking furnace. The output end of the induced draft fan is connected to the first waste gas pipeline, and the induced draft fan sends the high-temperature flue gas sucked out into the first waste gas pipeline for transmission. The first waste gas pipeline passes through the refining furnace. Slag furnace, the slag furnace will heat the exhaust gas in the first exhaust gas pipe, the first exhaust gas pipe passes through the coking oven and is connected with the second exhaust gas pipe, the exhaust gas in the first exhaust gas pipe will heat the coking oven, reducing the energy usage in the coking oven, and the thermal insulation layer formed by the first exhaust gas pipe also provides an insulation effect for the heat loss of the coking oven, a first motor is arranged on the upper surface of the coking oven substrate, a second motor is arranged on the side of the coking oven substrate away from the first motor, the first motor, the second motor are fixedly connected to the coking oven substrate, and the first motor and the second motor provide power for the turning of raw materials in the coking oven.

[0006] The coking oven comprises: a coking oven wall, an air outlet, an electronic dust collector, a control box, a first rotating dial, a feed port, a feed control panel, and a second rotating dial. The coking oven wall is fixedly connected to the coking oven base plate. The coking oven wall is a sandwich structure. A first exhaust gas pipe passes through the interlayer of the coking oven wall. Such a structural design enables the first exhaust gas pipe to form an effective thermal insulation layer in the coking oven wall. A first rotating dial and a second rotating dial are arranged at the bottom end of the coking oven wall. The first rotating dial is sleeved on the second rotating dial. The first rotating dial and the second rotating dial rotate The first rotating dial is connected to the coking oven wall, and the first rotating dial rotates with the second rotating dial, which can drive the raw materials in the coking oven so that the raw materials can be fully heated, reducing the problem of raw material accumulation, which leads to the inability to fully coke during the coking process, thereby causing a large amount of raw material waste. A control box is arranged on the coking oven wall, and an electronic dust collector is arranged in the coking oven wall. The electronic dust collector can adsorb the dust generated in the coking process, reducing the impact of dust on the coking process. The control box is connected with the electronic dust collector, the feeding crawler motor, the first motor, and the second motor through wires. The control box can control the working state of these electrical appliances, so that the entire coking process can be accurately controlled. At the same time, it can also reduce unnecessary energy waste. The electronic dust collector is arranged above the first rotating dial and the second rotating dial. A feeding port is arranged on the coking oven wall, and a feeding crawler is arranged in the feeding port. The feeding crawler inputs the raw materials into the coking oven through the feeding port, replacing the traditional manual feeding, and the efficiency is improved. A feeding control is arranged on the side of the feeding port away from the feeding box. The feed control plate is slidably connected with the feed port, and the feed control plate can control the feeding state of the feed port, thereby avoiding accidents caused by excessive stacking of raw materials in the coking oven. The feed port is connected with the coking oven, and the feed port is arranged between the electronic dust collector and the first rotating dial wheel. Such a structural design can prevent the electronic dust collector from affecting the feeding process. An air outlet is arranged on the top of the coking oven wall, and the air outlet is connected with the input end of the induced draft fan. The generated exhaust gas will be discharged into the induced draft fan through the air outlet and continued to be transported by the induced draft fan.

[0007] Turbine-shaped grooves are arranged on the upper surfaces of the first rotating paddle wheel and the second rotating paddle wheel, and the directions of the turbine-shaped grooves of the first rotating paddle wheel and the second rotating paddle wheel are opposite. With such a structural design, the raw materials can be fully mixed in the coking oven. At the same time, the opposite directions of the grooves also have a certain crushing effect, so that the raw materials can be fully coked, reducing energy use.

[0008] The output ends of the first motor and the second motor are respectively provided with a first motor pulley and a second motor pulley, the first motor pulley is connected to the first rotating paddle wheel through a track, and the second motor pulley is connected to the second rotating paddle wheel through a track, and the first rotating paddle wheel and the second rotating paddle wheel rotate in opposite directions, and the opposite rotation directions crush the raw materials, and the grooves on the first rotating paddle wheel and the grooves on the second rotating paddle wheel are combined, so that the raw materials can be crushed more finely, achieving a better coking effect and reducing raw material waste.

[0009] The first exhaust gas pipe passing through the slag furnace is spiral-shaped and adopts a spiral stacking method, which fully utilizes the space in the slag furnace and also greatly increases the contact area between the first exhaust gas pipe and the slag in the slag furnace, thereby achieving a better heat exchange effect, making full use of the heat in the slag and minimizing energy loss.

[0010] The first exhaust pipe includes a filter plate and a first exhaust pipe wall. The filter plate is arranged inside the first exhaust pipe wall. The filter plate can filter the exhaust gas flowing through the first exhaust pipe, and filter out the dust and particulate matter therein. The filter plate and the first exhaust pipe wall are slidably connected. The radius of the filter plate is equal to the inner radius of the first exhaust pipe wall. Such a structural design enables the filter plate to filter the exhaust gas with higher precision. The filter plate can be removed, and the filtered residue and waste can be cleaned in time.

[0011] The feed box has a sandwich structure, and the second exhaust gas pipe is arranged in the sandwich of the feed box. Such a structural design allows the second exhaust gas pipe to fully surround the feed box, so that the second exhaust gas pipe can fully preheat the feed box and provide a preparatory effect for the coking operation. The preheated raw materials are also easier to coke, thereby saving a lot of energy.

[0012] The coke oven base plate is made of heat-insulating material. This design can prevent the high temperature generated in the coke oven from affecting the service life of the first motor and the second motor. At the same time, the design of the heat-insulating material also reduces the heat loss in the coke oven.

[0013] Compared with the prior art, the beneficial effects achieved by the present invention are: 1. The present invention has the function of recycling waste heat, utilizing the heat in the tail gas for hierarchical utilization, and utilizing the heat in the slag for secondary heating of the waste gas, so that the heat utilization in each stage is optimized and energy loss is reduced.

[0014] 2. The present invention has the function of fully coking the raw materials. The crushing and mixing functions of the rotating dial are used to fully heat the raw materials, avoiding the problem of being unable to coke due to accumulation problems, reducing energy waste, and preheating the raw materials before coking, making the raw materials easier to coke. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a front view structural schematic diagram of the present invention;

[0017] Figure 2 It is a side structural schematic diagram of the present invention;

[0018] Figure 3 It is a schematic diagram of the top view of the structure of the present invention;

[0019] Figure 4 yes Figure 3 The schematic diagram of the cross-sectional structure in the AA direction;

[0020] Figure 5 yes Figure 3 The schematic diagram of the cross-sectional structure in the BB direction;

[0021] Figure 6 It is a schematic diagram of the internal structure of the slag furnace of the present invention;

[0022] Figure 7 yes Figure 6 Schematic diagram of the cross-sectional structure in CC direction;

[0023] Figure 8 It is a schematic diagram of a partial cross-sectional structure of an induced draft fan of the present invention;

[0024] Fig. 9 It is a schematic diagram of the structure of the matching relationship of the rotary dial of the present invention;

[0025] In the figure: 1. coking oven; 1-1. coking oven wall; 1-2. air outlet; 1-3. electronic dust collector; 1-4. control box; 1-5. first rotary dial; 1-6. feed inlet; 1-7. feed control board; 1-8. second rotary dial; 2. feed box; 3. exhaust outlet; 4. induced draft fan; 5. feed crawler; 6. slag furnace; 7. slag discharger; 8. first exhaust gas duct; 81. filter plate; 8-2. first exhaust gas duct wall; 9. second exhaust gas duct; 10. first motor; 10-1. first motor pulley; 11. second motor; 11-1. second motor pulley; 12. coking oven base plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] See also Figure 1-9 , the present invention provides a technical solution:

[0028] like Figure 1 , 23, a low-cost and high-efficiency coking device with waste heat circulation, the coking device comprising: a coking oven 1, a feed box 2, an exhaust port 3, an induced draft fan 4, a feed crawler 5, a slag furnace 6, a slag discharger 7, a first exhaust gas pipeline 8, a second exhaust gas pipeline 9, a first motor 10, a second motor 11, and a coking oven base plate 12. The coking oven 1 is arranged on the coking oven base plate 12, and the coking oven base plate 12 provides support for the coking oven 1 and provides an installation position for the coking oven 1 support. The coking oven 1 is connected to the feed box 2 through the second exhaust gas pipeline 9, and the second exhaust gas pipeline 9 is used to transmit exhaust gas. A feed gas pipeline 9 is arranged between the coking oven 1 and the feed box 2. The crawler belt 5 is powered by a motor to realize transportation. The feeding crawler belt 5 passes through one side of the feeding box 2. Driven by the motor, the feeding crawler belt 5 transports the raw materials in the feeding box 2 to the coking oven 1 to realize the transportation function. The second exhaust gas pipe 9 passes through the feeding box 2, and the waste heat in the exhaust gas is used to preheat the feeding box 2, so as to realize the effect of waste gas utilization. The second exhaust gas pipe 9 is connected to the exhaust port 3. The exhaust port 3 is provided on the side of the feeding box 2 away from the coking oven 1. The preheated exhaust gas will be discharged from the feeding box 2 from the exhaust port 3, so as to make full use of the heat in the exhaust gas. The preheated raw materials are also easier to refine. The coking oven substrate 12 A slag furnace 6 is provided on the lower surface for loading the slag after coking. The slag furnace 6 is connected to the coking oven 1 through a slag discharger 7. The slag after coking will enter the slag furnace 6 from the slag discharger 7, so as to achieve the effect of timely slag removal and avoid the influence of slag accumulation on the subsequent coking operation. An induced draft fan 4 is provided on the top of the coking oven 1. The induced draft fan 4 absorbs and removes the waste gas generated by coking in the coking oven 1. The output end of the induced draft fan 4 is connected to the first exhaust gas pipeline 8. The induced draft fan 4 sends the high-temperature flue gas sucked out into the first exhaust gas pipeline 8 for transmission. The first exhaust gas pipeline 8 passes through the slag furnace 6. The slag furnace 6 will be the first exhaust gas The exhaust gas in the pipe 8 is heated, and the first exhaust gas pipe 8 passes through the coking oven 1 and is connected with the second exhaust gas pipe 9. The exhaust gas in the first exhaust gas pipe 8 will heat the coking oven 1, reducing the energy usage in the coking oven 1, and the thermal insulation layer formed by the first exhaust gas pipe 8 also provides an insulation effect for the heat loss of the coking oven 1. A first motor 10 is arranged on the upper surface of the coking oven substrate 12, and a second motor 11 is arranged on the side of the coking oven substrate 12 away from the first motor 10. The first motor 10, the second motor 11 and the coking oven substrate 12 are fixedly connected, and the first motor 10 and the second motor 11 provide power for the turning of the raw materials in the coking oven.

[0029] like Figure 4As shown, the coking oven 1 includes: a coking oven wall 1-1, an air outlet 1-2, an electronic dust collector 1-3, a control box 1-4, a first rotating dial wheel 1-5, a feed port 1-6, a feed control panel 1-7, and a second rotating dial wheel 1-8. The coking oven wall 1-1 is fixedly connected to the coking oven base plate 12. The coking oven wall 1-1 is a sandwich structure. A first exhaust gas pipe 8 passes through the interlayer of the coking oven wall 1-1. Such a structural design allows the first exhaust gas pipe 8 to form an effective thermal insulation layer in the coking oven wall 1-1. The bottom end of the coking oven wall 1-1 is provided with a first rotating dial wheel 1-5 and a second rotating dial wheel 1-8. The first rotating dial wheel 1-5 is sleeved in the second On the rotating dial 1-8, the first rotating dial 15 is rotationally connected with the second rotating dial 1-8, and the first rotating dial 1-5 is rotationally connected with the coking oven wall 1-1. The rotation of the first rotating dial 1-5 and the second rotating dial 1-8 can drive the raw materials in the coking oven 1, so that the raw materials can be fully heated, reducing the problem of insufficient coking during the coking process due to the accumulation of raw materials. A control box 1-4 is arranged on the coking oven wall 1-1, and an electronic dust collector 1-3 is arranged in the coking oven wall 1-1. The electronic dust collector 1-3 can absorb the dust generated during the coking process, reducing the influence of dust on the coking process. The control box 1-4 The control box 1-4 is connected to the motor of the electronic dust collector 1-3, the feeding crawler 5, the first motor 10, and the second motor 11 through wires, and can control the working status of these electrical appliances, so that the entire coking process can be accurately controlled. At the same time, it can also reduce unnecessary energy waste. The electronic dust collector 1-3 is arranged above the first rotating dial wheel 1-5 and the second rotating dial wheel 1-8. A feeding port 1-6 is arranged on the coking oven wall 1-1, and a feeding crawler 5 is arranged in the feeding port 1-6. The feeding crawler 5 inputs the raw materials into the coking oven 1 through the feeding port 1-6, replacing the traditional manual feeding, and the efficiency is improved. A feed control panel 1-7 is provided on one side away from the feed box 2, and the feed control panel 1-7 is slidably connected to the feed port 1-6. The feed control panel 1-7 can control the feeding state of the feed port 1-6, and the feed port 1-6 is connected with the coking oven 1. The feed port 1-6 is provided between the electronic dust collector 1-3 and the first rotating dial wheel 1-5. Such a structural design can prevent the electronic dust collector 1-3 from affecting the feeding process. An air outlet 1-2 is provided at the top of the coking oven wall 1-1, and the air outlet 1-2 is connected to the input end of the induced draft fan 4. The generated exhaust gas will be discharged into the induced draft fan 4 from the air outlet 1-2 and continued to be transported by the induced draft fan 4.

[0030] like Fig. 9As shown, turbine-shaped grooves are arranged on the upper surfaces of the first rotating dial 1-5 and the second rotating dial 1-8, and the directions of the turbine-shaped grooves of the first rotating dial 1-5 and the second rotating dial 1-8 are opposite. With such a structural design, the raw materials can be fully mixed in the coking oven 1, and at the same time, the opposite directions of the grooves also have a certain crushing effect, so that the raw materials can be fully coked, reducing energy use.

[0031] like Figure 4 As shown, the output ends of the first motor 10 and the second motor 11 are respectively provided with a first motor pulley 10-1 and a second motor pulley 11-1, the first motor pulley 10-1 is connected to the first rotating dial wheel 1-5 through a track, and the second motor pulley 11-1 is connected to the second rotating dial wheel 18 through a track, and the first rotating dial wheel 1-5 and the second rotating dial wheel 1-8 rotate in opposite directions, and the opposite rotation directions, combined with the grooves on the first rotating dial wheel 1-5 and the grooves on the second rotating dial wheel 1-8, allow the raw materials to be fully crushed to achieve the best coking effect and reduce raw material waste.

[0032] like Figure 6 , 7 As shown, the first exhaust gas pipe 8 passing through the slag furnace 6 is spiral-shaped, and a spiral stacking method is adopted to fully utilize the space in the slag furnace 6. At the same time, the contact area between the first exhaust gas pipe 8 and the slag in the slag furnace is greatly increased, thereby achieving the best heat exchange effect, making full use of the heat in the slag, and minimizing energy loss.

[0033] like Figure 8 As shown, the first exhaust gas pipe 8 includes a filter plate 8-1 and a first exhaust gas pipe wall 8-2. The filter plate 8-1 is arranged inside the first exhaust gas pipe wall 8-2. The filter plate can filter the exhaust gas flowing through the first exhaust gas pipe 8, and filter out the dust and particulate matter therein. The filter plate 8-1 and the first exhaust gas pipe wall 8-2 are slidably connected. The radius of the filter plate 8-1 is equal to the inner radius of the first exhaust gas pipe wall 8-2, which can achieve a better filtering effect. The filter plate 8-1 can be removed, and the filtered residue and waste can be cleaned in time.

[0034] like Figure 5 As shown, the feed box 2 is a sandwich structure, and the second exhaust gas pipe 9 is arranged in the sandwich of the feed box 2. Such a structural design allows the second exhaust gas pipe 9 to fully surround the feed box 2, so that the second exhaust gas pipe 9 can fully preheat the feed box 2 and provide a preparatory effect for the coking operation. The preheated raw materials are also easier to be coked, thereby saving a lot of energy usage.

[0035] The coke oven base plate 12 is made of heat-insulating material. Such a design can prevent the high temperature generated in the coke oven 1 from affecting the service life of the first motor 10 and the second motor 11 . Meanwhile, the design of the heat-insulating material also reduces the heat loss in the coke oven 1 .

[0036] The working principle of the present invention is as follows: the feed box 2 conveys the raw materials into the coking oven 1 through the feed crawler 5, and the coking oven 1 starts to heat and coke. During the coking process, a large amount of flue gas will be generated, most of the dust will be adsorbed by the electronic dust collector 1-3, and the generated slag will be sent into the slag furnace 6 by the slag discharger 7. Then the flue gas enters the first exhaust gas pipe under the action of the induced draft fan 4, and the first exhaust gas pipe 8 is filtered again, and then it will flow through the slag furnace 6 along the first exhaust gas pipe 8. The slag in the slag furnace 6 will heat the exhaust gas again, replenishing the energy loss of the exhaust gas during the flow, and enter the interlayer of the coking oven wall 1-1 again, thereby providing heat for the coking oven 1, forming a thermal insulation layer, and reducing the heat loss of the coking oven 1 to the outside. After passing through the coking oven 1, the exhaust gas will enter the interlayer of the feed box 2 to preheat the raw materials in the feed box 2, so that the heat in the exhaust gas can be utilized again, and the coking degree of the raw materials is also increased.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0038] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A low-cost and high-efficiency coking device with waste heat circulation, characterized in that: The coking device comprises: a coking oven (1), a feed box (2), an exhaust port (3), an induced draft fan (4), a feed crawler (5), a slag furnace (6), a slag discharger (7), a first exhaust gas pipeline (8), a second exhaust gas pipeline (9), a first motor (10), a second motor (11), and a coking oven base plate (12). The coking oven (1) is arranged on the coking oven base plate (12). The coking oven (1) is connected to the feed box (2) via the second exhaust gas pipeline (9). A feed crawler (5) is arranged between the coking oven (1) and the feed box (2). The feed crawler (5) passes through one side of the feed box (2). The second exhaust gas pipeline (9) passes through the feed box (2). The exhaust port (3) is arranged on the side of the feed box (2) away from the coking oven (1). The second exhaust gas pipe (9) is connected to the exhaust port (3); a slag furnace (6) is arranged on the lower surface of the coking oven base plate (12); the slag furnace (6) is connected to the coking oven (1) via a slag discharger (7); an induced draft fan (4) is arranged at the top of the coking oven (1); the output end of the induced draft fan (4) is connected to the first exhaust gas pipe (8); the first exhaust gas pipe (8) passes through the slag furnace (6); the first exhaust gas pipe (8) passes through the coking oven (1) and is connected to the second exhaust gas pipe (9); a first motor (10) is arranged on the upper surface of the coking oven base plate (12); a second motor (11) is arranged on the side of the coking oven base plate (12) away from the first motor (10); the first motor (10) and the second motor (11) are fixedly connected to the coking oven base plate (12); The coking oven (1) comprises: a coking oven wall (1-1), an air outlet (1-2), an electronic dust collector (1-3), a control box (1-4), a first rotating dial wheel (1-5), a feed port (1-6), a feed control panel (1-7), and a second rotating dial wheel (1-8). The coking oven wall (1-1) is fixedly connected to a coking oven base plate (12). The coking oven wall (1-1) is a sandwich structure. A first exhaust gas pipe (8) passes through the sandwich of the coking oven wall (1-1). ), a first rotating dial (1-5) and a second rotating dial (1-8) are arranged at the bottom end of the coking oven wall (1-1), the first rotating dial (1-5) is sleeved on the second rotating dial (1-8), the first rotating dial (1-5) and the second rotating dial (1-8) are rotationally connected, the first rotating dial (1-5) and the coking oven wall (1-1) are rotationally connected, a control box (1-4) is arranged on the coking oven wall (1-1), and the coking oven wall (1-1) ) is provided with an electronic dust collector (1-3), the control box (1-4) is connected to the electronic dust collector (1-3), the feeding crawler (5), the first motor (10), and the second motor (11) through wires, the electronic dust collector (1-3) is arranged above the first rotating dial wheel (1-5) and the second rotating dial wheel (1-8), the coking furnace wall (1-1) is provided with a feeding port (1-6), the feeding crawler (5) is arranged in the feeding port (1-6), and the feeding port A feed control panel (1-7) is arranged on the side of the coking furnace (1-6) away from the feed box (2), the feed control panel (1-7) is slidably connected to the feed port (1-6), the feed port (1-6) is connected to the coking furnace, the feed port (1-6) is arranged between the electronic dust collector (1-3) and the first rotating dial wheel (1-5), and an air outlet (1-2) is arranged at the top of the coking furnace wall (1-1), and the air outlet (1-2) is connected to the input end of the induced draft fan (4).

2. A low-cost and high-efficiency coking device with waste heat circulation according to claim 1, characterized in that: The upper surfaces of the first rotating dial (1-5) and the second rotating dial (1-8) are provided with turbine-shaped grooves, and the directions of the turbine-shaped grooves of the first rotating dial (1-5) and the second rotating dial (1-8) are opposite.

3. A low-cost and high-efficiency coking device with waste heat circulation according to claim 1, characterized in that: The output ends of the first motor (10) and the second motor (11) are respectively provided with a first motor pulley (10-1) and a second motor pulley (11-1); the first motor pulley (10-1) is connected to a first rotating dial wheel (1-5) via a track; the second motor pulley (11-1) is connected to a second rotating dial wheel (1-8) via a track; the first rotating dial wheel (1-5) and the second rotating dial wheel (1-8) rotate in opposite directions.

4. A low-cost and high-efficiency coking device with waste heat circulation according to claim 1, characterized in that: The portion of the first exhaust gas pipe (8) passing through the slag furnace (6) is spiral.

5. A low-cost and high-efficiency coking device with waste heat circulation according to claim 1, characterized in that: The first exhaust gas pipe (8) comprises a filter plate (8-1) and a first exhaust gas pipe wall (8-2); the filter plate (8-1) is arranged inside the first exhaust gas pipe wall (8-2); the filter plate (8-1) and the first exhaust gas pipe wall (8-2) are slidably connected; the radius of the filter plate (8-1) is equal to the inner radius of the first exhaust gas pipe wall (8-2).

6. A low-cost and high-efficiency coking device with waste heat circulation according to claim 1, characterized in that: The feed box (2) is a sandwich structure, and the second exhaust gas pipe (9) is arranged in the sandwich of the feed box (2).

7. A low-cost and high-efficiency coking device with waste heat circulation according to claim 1, characterized in that: The coking oven base plate (12) is a heat insulating material.

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