Furnace door structure of coking furnace with waste heat recovery device

Abstract

The utility model belongs to the technical field of coking furnaces, and particularly relates to a coking furnace door structure with a waste heat recovery device, which comprises a furnace door body, a heat collection cavity is arranged in the furnace door body, a fireproof plate is fixedly arranged on one side of the furnace door body, an absorption cover is fixedly arranged in the heat collection cavity, and a connecting pipe is fixedly arranged on one side of the absorption cover. The waste heat recovery structure is arranged, when the coking furnace works, the air pump is started, the air pump operates to enable the absorption cover to be in an air suction state, heat on the furnace door can be sucked in by the absorption cover, the waste heat on the furnace door can be recovered, and the waste heat on the furnace door can be recovered. Water in the water storage barrel can be heated, heat can be recycled, hot air in the heat conduction pipe is discharged into the water tank through the air guide pipe, the purpose of preheating cold water at the top of the partition plate can be achieved, and maximum utilization of waste heat can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of coking furnaces, in particular to a coking furnace door structure with a waste heat recovery device. Background Art

[0002] A coking furnace is a device used for high-temperature dry distillation of coal and is a core piece of equipment in a coking plant. Its operating principle is to heat coal to a certain temperature in an airtight environment, causing it to decompose into coke, coal gas, and other byproducts. During this process, the organic matter in the coal undergoes pyrolysis. The resulting gases, after purification and treatment, are converted into coal gas, while the remaining solid matter forms coke. To minimize heat loss, waste heat recovery structures are typically installed on the exterior of the furnace, significantly improving energy utilization and reducing production costs.

[0003] However, the existing coking furnace door does not have a waste heat recovery structure. A large amount of heat will be generated on the door surface during equipment operation. The waste heat on the door surface cannot be utilized, which also causes a large amount of heat loss. For this reason, a coking furnace door structure with a waste heat recovery device is proposed. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings in the prior art and to propose a coking furnace door structure with a waste heat recovery device.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a coking furnace door structure with a waste heat recovery device, comprising a furnace door body, a heat collecting chamber is provided in the furnace door body, a fireproof plate is fixedly provided on one side of the furnace door body, an absorption cover is fixedly provided in the heat collecting chamber, a connecting pipe is fixedly provided on one side of the absorption cover, one end of the connecting pipe passes through an inner wall of one side of the heat collecting chamber and extends to the outside of the heat collecting chamber, a mounting plate is fixedly provided on one side of the furnace door body, two grooves are provided on one side of the mounting plate, a locking structure is provided in the groove, two support plates are fixedly provided on one side of the furnace door body, and a waste heat recovery structure is provided on the top of the two support plates.

[0006] As a further description of the above technical solution:

[0007] The locking structure includes a hinged seat fixedly connected to the inner wall of one side of the groove and a top rod movably connected to the inner wall of one side of the groove. A lock frame is movably provided in the hinged seat, and a spring is fixedly provided on one side of the lock frame. The other end of the spring is fixedly connected to the inner wall of the groove.

[0008] As a further description of the above technical solution:

[0009] The heat dissipation regulating device is a kind of heat dissipation regulating device, and the heat dissipation regulating device is a kind of heat dissipation regulating device. The heat dissipation regulating device is a kind of heat dissipation regulating device, and the heat dissipation regulating device is a kind of heat dissipation regulating device.

[0010] As a further description of the above technical solution:

[0011] The heat conducting pipe is spiral-shaped, one end of the heat conducting pipe is fixedly connected to the exhaust pipe, and the other end of the heat conducting pipe is fixedly connected to the air conducting pipe.

[0012] As a further description of the above technical solution:

[0013] The lock frame includes a lock rod and a lock hook. The lock hook and the side close to the clamping block are both provided with an inclined surface. The inclined surface on one side of the clamping block is parallel to the inclined surface on one side of the lock hook.

[0014] As a further description of the above technical solution:

[0015] The water guide pipe and the drainage pipe are both made of stainless steel and are provided with valves.

[0016] The utility model has the following beneficial effects:

[0017] 1. Compared with the existing technology, the coking furnace door structure with a waste heat recovery device is provided with a heat collecting box, a horizontal plate, an air pump, a water storage barrel, a heat pipe, an exhaust pipe, an air pipe, a water tank, a partition, a water pipe and a drain pipe. When the coking furnace is working, the air pump is started, and the operation of the air pump puts the absorption cover in an air suction state. The absorption cover can absorb the heat on the furnace door and transport it to the heat pipe through the exhaust pipe. The heat pipe fits with the water storage barrel and can heat the water in the water barrel, thereby realizing heat recovery and reuse. The hot air in the heat pipe is discharged into the water tank through the air pipe, which can achieve the purpose of preheating the cold water on the top of the partition and maximize the utilization of waste heat.

[0018] 2. Compared with the existing technology, the coking furnace door structure with a waste heat recovery device is equipped with a plug plate, a card block, a push rod, a lock frame and a spring. The push rod is squeezed, and the push rod then squeezes the lock frame and makes it break away from the contact with the card block. Then, the heat collecting box is pulled outward to remove the waste heat recovery structure, which can realize the rapid disassembly of the waste heat recovery structure and facilitate subsequent maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a first-perspective three-dimensional structural diagram of a coking furnace door structure with a waste heat recovery device proposed in the present invention;

[0020] Figure 2 This is a schematic diagram of the third perspective structure of the coking furnace door structure with a waste heat recovery device proposed in the present invention;

[0021] Figure 3 This is a schematic diagram of the top cross-section of the coking furnace door structure with a waste heat recovery device proposed in the present invention;

[0022] Figure 4 This is a schematic side sectional view of the mounting plate in the door structure of a coking furnace with a waste heat recovery device proposed in the present invention;

[0023] Figure 5 This is a three-dimensional schematic diagram of the waste heat recovery structure in the coking furnace door structure with a waste heat recovery device proposed by the present invention;

[0024] Figure 6 This is a side sectional plan view of the waste heat recovery structure in the coking furnace door structure with a waste heat recovery device proposed by the present invention.

[0025] Legend:

[0026] 1. Furnace door body; 2. Fireproof board; 3. Heat collecting chamber; 4. Absorption cover; 5. Mounting plate; 6. Groove; 7. Locking structure; 701. Articulated seat; 702. Push rod; 703. Locking frame; 704. Spring; 8. Support plate; 9. Waste heat recovery structure; 901. Heat collecting box; 902. Horizontal plate; 903. Air pump; 904. Insert plate; 905. Block; 906. Water storage barrel; 907. Heat pipe; 908. Exhaust pipe; 909. Air pipe; 910. Water tank; 911. Partition; 912. Water pipe; 913. Drain pipe. DETAILED DESCRIPTION

[0027] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0028] Reference Figures 1 to 6 The utility model provides a coking furnace door structure with a waste heat recovery device: it includes a furnace door body 1, a heat collecting chamber 3 is provided in the furnace door body 1, a fireproof plate 2 is fixedly provided on one side of the furnace door body 1, an absorption cover 4 is fixedly provided in the heat collecting chamber 3, a connecting pipe is fixedly provided on one side of the absorption cover 4, one end of the connecting pipe passes through the inner wall of one side of the heat collecting chamber 3 and extends to the outside of the heat collecting chamber 3, a mounting plate 5 is fixedly provided on one side of the furnace door body 1, and two grooves 6 are provided on one side of the mounting plate 5;

[0029] Reference Figure 4 , in order to achieve the purpose of quick disassembly, a locking structure 7 is provided in the groove 6, which includes a hinge seat 701 fixedly connected to the inner wall of one side of the groove 6 and a push rod 702 movably connected to the inner wall of one side of the groove 6, and a lock frame 703 is movably provided in the hinge seat 701, and a spring 704 is fixedly provided on one side of the lock frame 703, and the other end of the spring 704 is fixedly connected to the inner wall of the groove 6, squeezing the push rod 702, and the push rod 702 squeezes the lock frame 703 and makes it break away from the contact with the block 905, and then the heat collecting box 901 is pulled outward to remove the waste heat recovery structure 9, which can realize the rapid disassembly of the waste heat recovery structure 9 and facilitate subsequent maintenance;

[0030] Reference Figure 5 and Figure 6In order to achieve the purpose of recycling preheating, two support plates 8 are fixed on one side of the furnace door body 1. A waste heat recovery structure 9 is provided on the top of the two support plates 8. The waste heat recovery structure 9 includes an air pump 903 connected to the groove 6 and a heat collecting box 901 movably connected to the support plate 8. Two horizontal plates 902 are fixed on one side of the heat collecting box 901. The two horizontal plates 902 are fixedly connected to the bottom of the air pump 903. An exhaust pipe 908 and an intake pipe are respectively provided on both sides of the air pump 903. The intake pipe is sleeved on the connecting pipe. There is a gap between the intake pipe and the connecting pipe. There is an asbestos pad, two plug plates 904 are fixed on one side of the air pump 903, and a card block 905 is fixed on the side away from the two plug plates 904. The lock frame 703 includes a locking rod and a locking hook. The side where the locking hook and the card block 905 are close to each other is provided with an inclined surface. The inclined surface on one side of the card block 905 is parallel to the inclined surface on the side of the locking hook. A water storage bucket 906 is fixed in the heat collecting box 901, and a heat conducting pipe 907 is wrapped around the water storage bucket 906. A water tank 910 is fixed on the top of the heat collecting box 901, and the front of the water tank 910 is provided with an inner diameter of two centimeters. The through hole is used to discharge the excess gas in the water tank 910. A partition 911 is fixed in the water tank 910. A water pipe 912 is fixed at the bottom of the partition 911. The bottom end of the water pipe 912 passes through the top inner wall of the heat collecting box 901 and is fixedly connected to the water storage barrel 906. An air pipe 909 is provided on the bottom inner wall of the water tank 910. The air pipe 909 introduces the preheated water into the water tank 910, which can achieve the purpose of preheating the cold water on the top of the partition 911. The heat pipe 907 is spiral, and one end of the heat pipe 907 is connected to the exhaust pipe 90 8 is fixedly connected, the other end of the heat pipe 907 is fixedly connected to the air pipe 909, a drain pipe 913 is provided on the bottom inner wall of the heat collecting box 901, the water pipe 912 and the drain pipe 913 are both made of stainless steel, and valves are provided on the water pipe 912 and the drain pipe 913, the top of the drain pipe 913 is fixedly connected to the water storage barrel 906, and the air pump 903 is started. The air pump 903 allows the absorption cover 4 to absorb the heat and pass the heat into the heat pipe 907, so as to heat the water inside the water storage barrel 906 and recycle the heat of the furnace door.

[0031] Working principle: When in use, first fill water into the water tank 910, then open the valve to let the water in the water tank 910 flow into the water storage barrel 906, and then start the air pump 903. The operation of the air pump 903 puts the absorption cover 4 in the suction state. The absorption cover 4 can absorb the heat on the furnace door and transport it to the heat pipe 907 through the exhaust pipe 908. The heat pipe 907 fits with the water storage barrel 906 and can heat the water in the water storage barrel 906, so that the heat can be recycled and reused. The hot air in 907 is discharged into the water tank 910 through the air duct 909, which can achieve the purpose of preheating the cold water on the top of the partition 911. By opening the valve on the drain pipe 913, the heated water can be discharged for use. If the waste heat recovery structure 9 needs to be removed for maintenance later, the top rod 702 is squeezed inward, and the top rod 702 drives the locking frame 703 to rotate and disengage it from the block 905, and then the heat collecting box 901 is pulled outward to remove the waste heat recovery structure 9.

[0032] Finally, it should be noted that the above 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 make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A coking furnace door structure with a waste heat recovery device, comprising a furnace door body (1), characterized in that: A heat collecting chamber (3) is provided in the furnace door body (1), a fireproof plate (2) is fixedly provided on one side of the furnace door body (1), an absorption cover (4) is fixedly provided in the heat collecting chamber (3), a connecting pipe is fixedly provided on one side of the absorption cover (4), one end of the connecting pipe passes through the inner wall of one side of the heat collecting chamber (3) and extends to the outside of the heat collecting chamber (3), a mounting plate (5) is fixedly provided on one side of the furnace door body (1), two grooves (6) are provided on one side of the mounting plate (5), a locking structure (7) is provided in the groove (6), two support plates (8) are fixedly provided on one side of the furnace door body (1), and a waste heat recovery structure (9) is provided on the top of the two support plates (8).

2. The coking furnace door structure with a waste heat recovery device according to claim 1 is characterized in that: The locking structure (7) comprises a hinge seat (701) fixedly connected to the inner wall of one side of the groove (6) and a push rod (702) movably connected to the inner wall of one side of the groove (6); a lock frame (703) is movably provided in the hinge seat (701); a spring (704) is fixedly provided on one side of the lock frame (703); and the other end of the spring (704) is fixedly connected to the inner wall of the groove (6).

3. The coking furnace door structure with a waste heat recovery device according to claim 2 is characterized in that: The waste heat recovery structure (9) includes an air pump (903) connected to the groove (6) and a heat collecting box (901) movably connected to the support plate (8), two transverse plates (902) are fixedly provided on one side of the heat collecting box (901), and the two transverse plates (902) are fixedly connected to the bottom of the air pump (903), and an exhaust pipe (908) and an intake pipe are respectively provided on both sides of the air pump (903), and the intake pipe is sleeved on the connecting pipe, and an asbestos pad is provided between the intake pipe and the connecting pipe, and two plug-in plates (904) are fixedly provided on one side of the air pump (903), and a card block (905) is fixedly provided on the side away from each other of the two plug-in plates (904), and a water storage bucket (906) is fixedly provided in the heat collecting box (901). The water storage barrel (906) is wrapped with a heat conduction pipe (907), a water tank (910) is fixedly provided on the top of the heat collecting box (901), a through hole with an inner diameter of two centimeters is provided on the front of the water tank (910), a partition (911) is fixedly provided inside the water tank (910), a water conduction pipe (912) is fixedly provided at the bottom of the partition (911), the bottom end of the water conduction pipe (912) passes through the top inner wall of the heat collecting box (901) and is fixedly connected to the water storage barrel (906), an air conduction pipe (909) is provided on the bottom inner wall of the water tank (910), a drainage pipe (913) is provided on the bottom inner wall of the heat collecting box (901), and the top of the drainage pipe (913) is fixedly connected to the water storage barrel (906).

4. The coking furnace door structure with a waste heat recovery device according to claim 3 is characterized in that: The heat conducting pipe (907) is spiral-shaped, one end of the heat conducting pipe (907) is fixedly connected to the exhaust pipe (908), and the other end of the heat conducting pipe (907) is fixedly connected to the air conducting pipe (909).

5. The coking furnace door structure with a waste heat recovery device according to claim 3 is characterized in that: The lock frame (703) includes a lock rod and a lock hook. The lock hook and the side close to the clamping block (905) are both provided with an inclined surface. The inclined surface on one side of the clamping block (905) is parallel to the inclined surface on one side of the lock hook.

6. The coking furnace door structure with a waste heat recovery device according to claim 3 is characterized in that: The water guide pipe (912) and the drainage pipe (913) are both made of stainless steel, and are both provided with valves.

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