Coke waste heat recovery device

Abstract

The utility model discloses a coke waste heat recovery device which comprises a smoke exhaust pipe, a waste heat recovery mechanism is arranged at the output end of the smoke exhaust pipe, a smoke filtering mechanism is arranged at the output end of the waste heat recovery mechanism, the waste heat recovery mechanism comprises a protective shell, and the protective shell is fixedly connected to the output end of the smoke exhaust pipe. A support is fixedly connected to one end of the outer surface of the protective shell. A water inlet pipe is fixedly connected into the support. The water inlet pipe is connected with the water conveying pipe so that flowing cold water can be supplied to the interior of the heat exchange pipe, the water inlet pipe is fixed through the support, smoke enters the protective shell from the smoke exhaust pipe, heat is transmitted to the cold water in the heat exchange pipe through the heat conduction pipe, and due to the spiral shape of the heat exchange pipe, water in the heat exchange pipe can be fully heated. And the water is conveyed into the water storage device through the water outlet pipe.

Description

TECHNICAL FIELD

[0001] The utility model relates to coke boiler technical field, concretely relates to a coke waste heat recovery device. BACKGROUND

[0002] Coke is a solid fuel, and a coke furnace in a coke production system produces a large amount of coal gas with extremely high heat during use. The heat of the coal gas has been ignored by enterprises in the past, resulting in a huge waste of resources. In the current era of building an ecological and sustainable development and achieving energy saving and emission reduction for enterprises in China, enterprises have begun to pay attention to the recovery of coal gas waste heat and maximize the use of resources through a coal gas waste heat recovery device. The recovery and utilization of waste heat from coal gas also provides an important revenue-generating approach for enterprise efficiency.

[0003] After searching, patent No. CN216668374U discloses a coal gas waste heat recovery device for coke production. By setting the first connecting block, the second connecting block and the limiting bolt, the waste heat recovery tank cover and the waste heat recovery tank body have a detachable function. At the same time, the flow mechanism is connected with the waste heat recovery tank cover and is not connected with the waste heat recovery tank body. Therefore, during the opening of the waste heat recovery tank cover, the flow mechanism can be taken out with the waste heat recovery tank cover, facilitating the periodic maintenance or repair of the flow mechanism.

[0004] However, the above-mentioned patent content only facilitates the repair of the flow mechanism and internal components through the detachable waste heat recovery tank cover and tank body. However, the overall structure of the device is relatively fixed and is not convenient for adjusting the device according to the actual smoke exhaust demand. Therefore, we provide a coke waste heat recovery device to solve the above-mentioned problems. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a coke waste heat recovery device to solve the problems raised in the background art.

[0006] To solve the above-mentioned technical problems, the utility model adopts the technical scheme of a coke waste heat recovery device, which comprises a smoke exhaust pipe. The output end of the smoke exhaust pipe is provided with a waste heat recovery mechanism. The output end of the waste heat recovery mechanism is provided with a flue gas filtering mechanism.

[0007] The waste heat recovery mechanism comprises a protective shell, which is fixedly connected to the output end of the smoke exhaust pipe. One end of the outer surface of the protective shell is fixedly connected with a support. The inside of the support is fixedly connected with a water inlet pipe. The other end of the outer surface of the protective shell is fixedly connected with a water outlet pipe at the bottom surface. The output end of the water outlet pipe is provided with a water storage device.

[0008] The inside of the protective shell is fixedly connected with a heat exchange pipe, the water inlet pipe is fixedly connected with the input end of the heat exchange pipe, the water outlet pipe is fixedly connected with the output end of the heat exchange pipe, the outer surface of the heat exchange pipe is fixedly connected with a heat conduction pipe, and one end of the outer surface of the heat conduction pipe is fixedly connected with the inside of the protective shell.

[0009] Further improvement of the utility model technical scheme lies in: the water storage device includes a water storage tank, one end of the top surface of the water storage tank is provided with a water inlet, the water inlet is fixedly connected with the output end of the water outlet pipe, and the output end of the water storage tank is fixedly connected with a water outlet valve.

[0010] Further improvement of the utility model technical scheme lies in: the other end of the top surface of the water storage tank is fixedly connected with a steam outlet, the inside of the steam outlet is threadedly connected with a plug, and the inside bottom surface of the water storage tank is fixedly connected with a heating pipe.

[0011] Further improvement of the utility model technical scheme lies in: the flue gas filtering mechanism includes a connecting pipe, the other end of the outer surface of the connecting pipe is fixedly connected with the protective shell, one end of the inside of the connecting pipe is fixedly connected with a fixed frame, the inside of the fixed frame is fixedly connected with a motor, and the output end of the motor is fixedly connected with an accelerating fan blade.

[0012] Further improvement of the utility model technical scheme lies in: the inside of the side surface of the connecting pipe is movably connected with a movable frame, the inside of the movable frame is fixedly connected with an ash filtering net, the middle of the inside of the connecting pipe is fixedly connected with a scraper, the movable frame is movably connected with the side surface of the scraper, the inside of the connecting pipe is provided with an ash outlet, and the bottom surface of the connecting pipe is provided with a storage device.

[0013] Further improvement of the utility model technical scheme lies in: the storage device includes an ash accumulation bin, the ash accumulation bin is fixedly connected with the bottom surface of the connecting pipe, the ash outlet is fixedly connected with the input end of the ash accumulation bin, and the bottom surface of the ash accumulation bin is fixedly connected with an ash outlet bin.

[0014] Further improvement of the utility model technical scheme lies in that the inside of the ash outlet bin is movably connected with a hopper, and the side surface of the hopper is fixedly connected with a handle.

[0015] Due to the adoption of the above technical scheme, the utility model has the following technical progress compared with the prior art:

[0016] 1. The coke waste heat recovery device can supply flowing cold water to the inside of the heat exchange pipe through the water inlet pipe connected with the water conveying pipe, the water inlet pipe is fixed by the support, the flue gas enters the inside of the protective shell from the smoke exhaust pipe, the heat is transmitted to the cold water in the inside of the heat exchange pipe through the heat conduction pipe, the water in the inside of the heat exchange pipe can be fully heated due to the spiral shape of the heat exchange pipe, and is transmitted to the inside of the water storage device through the water outlet pipe.

[0017] The heated hot water enters the inside of the water storage tank from the water inlet, and is temporarily stored in the inside of the water storage tank, and the hot water in the inside of the water storage tank can be taken out through the water outlet valve when needed;

[0018] Or the hot water in the inside of the water storage tank is further heated through the heating pipe, at this time, the input end of the steam engine can be connected to the output end of the steam outlet by removing the plug, at this time, the hot water heated through the heating pipe is boiled to generate steam to provide power for the steam engine, thereby improving the adaptability of the device.

[0019] 2. The coke waste heat recovery device is characterized in that the flue gas passing through the waste heat recovery mechanism is transmitted to the inside of the protective shell, at this time, the motor drives the accelerating fan blade to rotate to generate suction to accelerate the flow of the flue gas and improve the smoke exhaust efficiency, at this time, the flue gas is blocked by the ash filtering net, so that the dust in the flue gas is blocked on the side surface of the ash filtering net, and when the flue gas discharge is completed, the ash filtering net can be taken out through the movable frame for cleaning, at this time, the scraper scrapes the dust attached to the surface of the ash filtering net and falls into the inside of the storage device through the ash outlet, the falling dust slides on the top surface of the ash storage bin through the guidance of the ash accumulation bin and accumulates in the inside of the ash bucket, and the ash bucket can be taken out through the handle to process the dust, thereby improving the adaptability of the device. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a three-dimensional structure schematic view of the utility model;

[0021] Figure 2 It is a structure schematic view of the waste heat recovery mechanism of the utility model;

[0022] Figure 3 It is a structure schematic view of the water storage device of the utility model;

[0023] Figure 4 It is a structure schematic view of the flue gas filtering mechanism of the utility model;

[0024] Figure 5 It is a structure schematic view of the storage device of the utility model.

[0025] In the drawing: 1, smoke exhaust pipe; 2, waste heat recovery mechanism; 21, protective shell; 22, support; 23, water inlet pipe; 24, heat exchange pipe; 25, heat conducting pipe; 26, water outlet pipe; 27, water storage device; 271, water storage tank; 272, water inlet; 273, steam outlet; 274, plug; 275, heating pipe; 276, water outlet valve; 3, flue gas filtering mechanism; 31, connecting pipe; 32, fixed frame; 33, motor; 34, accelerating fan blade; 35, ash outlet; 36, scraper; 37, movable frame; 38, storage device; 381, ash accumulation bin; 382, ash storage bin; 383, ash bucket; 384, handle; 39, ash filtering net. DETAILED DESCRIPTION

[0026] The utility model will be further explained in detail in combination with the embodiments:

[0027] Embodiment 1

[0028] As Figures 1-5 shown, the utility model provides a coke waste heat recovery device, including the smoke pipe 1, the output of smoke pipe 1 is provided with waste heat recovery mechanism 2, the output of waste heat recovery mechanism 2 is provided with flue gas filtering mechanism 3;

[0029] Waste heat recovery mechanism 2 includes protective housing 21, and the protective housing 21 is fixedly connected at the output of smoke pipe 1, and the outer surface one end of protective housing 21 is fixedly connected with support 22, and the inside of support 22 is fixedly connected with water inlet pipe 23, and the outer surface other end bottom of protective housing 21 is fixedly connected with water outlet pipe 26, and the output of water outlet pipe 26 is provided with water storage device 27;

[0030] Water storage device 27 includes water storage tank 271, and the top surface one end of water storage tank 271 is provided with water inlet 272, and water inlet 272 is fixedly connected at the output of water outlet pipe 26, and the output of water storage tank 271 is fixedly connected with water outlet valve 276;

[0031] The top surface other end of water storage tank 271 is fixedly connected with steam outlet 273, and the inside of steam outlet 273 is threadedly connected with plug 274, and the inside bottom of water storage tank 271 is fixedly connected with heating pipe 275;

[0032] The inside of protective housing 21 is fixedly connected with heat exchange pipe 24, and water inlet pipe 23 is fixedly connected at the input of heat exchange pipe 24, and water outlet pipe 26 is fixedly connected at the output of heat exchange pipe 24, and the outer surface of heat exchange pipe 24 is fixedly connected with heat conduction pipe 25, and one end of heat conduction pipe 25 outer surface is fixedly connected in the inside of protective housing 21.

[0033] In this embodiment, the two ends of protective housing 21 are provided with connecting ports, a single waste heat recovery mechanism 2 and flue gas filtering mechanism 3 are a group, the extension of flue gas passage can be realized through the connection of multiple groups of waste heat recovery mechanism 2 and flue gas filtering mechanism 3, protective housing 21 has certain heat preservation effect, heat exchange pipe 24 and protective housing 21 are connected together, and a mounting space of heat exchange pipe 24 is reserved therein, heat exchange pipe 24 is spiral, can increase the time of water in its inside staying in the inside of protective housing 21, improves heat exchange efficiency;

[0034] The water inlet pipe 23 is connected to the water supply pipe to supply cold water inside the heat exchange pipe 24, the support 22 fixes the water inlet pipe 23, the flue gas enters the inside of the protective shell 21 from the flue gas exhaust pipe 1, the heat is transmitted to the cold water inside the heat exchange pipe 24 through the heat conducting pipe 25, and due to the spiral shape of the heat exchange pipe 24, the water inside can be fully heated, and the water is transmitted to the inside of the water storage device 27 through the water outlet pipe 26;

[0035] The heated hot water enters the inside of the water storage tank 271 from the water inlet 272 and is temporarily stored in the inside of the water storage tank 271, and the hot water in the inside of the water storage tank 271 can be taken out through the water outlet valve 276 when needed;

[0036] Or the hot water in the inside of the water storage tank 271 is further heated through the heating pipe 275, at this time, the steam engine input end can be connected to the output end of the steam outlet 273 by removing the plug 274, at this time, the hot water heated by the heating pipe 275 is boiled to generate steam to provide power for the steam engine.

[0037] Embodiment 2

[0038] As Figures 1-5 As shown in the embodiment 1, the utility model provides a technical scheme: preferably, the flue gas filtering mechanism 3 includes the connecting pipe 31, the connecting pipe 31 fixedly connected to the other end of the outer surface of the protective shell 21, the inside one end of the connecting pipe 31 is fixedly connected with the fixed frame 32, the inside of the fixed frame 32 is fixedly connected with the motor 33, and the output end of the motor 33 is fixedly connected with the accelerating fan blade 34.

[0039] The side surface inside the connecting pipe 31 is movably connected with the movable frame 37, the inside of the movable frame 37 is fixedly connected with the ash filter screen 39, the middle part of the inside of the connecting pipe 31 is fixedly connected with the scraper 36, the movable frame 37 is movably connected to the side surface of the scraper 36, the inside of the connecting pipe 31 is provided with the ash outlet 35, and the bottom surface of the connecting pipe 31 is provided with the storage device 38.

[0040] The storage device 38 includes the ash accumulation bin 381, the ash accumulation bin 381 is fixedly connected to the bottom surface of the connecting pipe 31, the ash outlet 35 is fixedly connected to the input end of the ash accumulation bin 381, the bottom surface of the ash accumulation bin 381 is fixedly connected with the ash outlet bin 382, the inside of the ash outlet bin 382 is movably connected with the ash bucket 383, and the side surface of the ash bucket 383 is fixedly connected with the handle 384.

[0041] In this embodiment, by connecting a proper number of waste heat recovery mechanisms 2 and flue gas filtering mechanisms 3 according to actual needs, the inside of both ends of the connecting pipe 31 is provided with a port that can be connected with the protective shell 21, and the movable frame 37 can be clamped inside the side opening of the connecting pipe 31 to provide a filtering effect for the flue, if one flue is provided with multiple groups of waste heat recovery mechanisms 2 and flue gas filtering mechanisms 3, the mesh number of the ash filtering screen 39 inside each flue gas filtering mechanism 3 is increased;

[0042] The flue gas passing through the waste heat recovery mechanism 2 will be transmitted to the inside of the protective shell 21, at this time the motor 33 drives the accelerating fan blade 34 to rotate to generate suction to accelerate the flow of flue gas and improve the exhaust efficiency, at this time the flue gas will be blocked by the ash filtering screen 39, so that the dust inside the flue gas is blocked on the side of the ash filtering screen 39;

[0043] When the flue gas discharge is finished, the ash filtering screen 39 can be removed by the movable frame 37 for cleaning, at this time the scraper 36 will scrape the dust attached to the surface of the ash filtering screen 39, and fall into the inside of the storage device 38 through the ash outlet 35;

[0044] The falling dust will slide on the top surface of the ash storage bin 382 through the guidance of the ash accumulation bin 381, and accumulate in the inside of the ash hopper 383, the ash hopper 383 can be taken out by the handle 384 to process the dust.

[0045] The working principle of the coke waste heat recovery device will be described below.

[0046] As shown in Figures 1-5 , the connecting water pipe can supply flowing cold water to the inside of the heat exchange pipe 24 through the water inlet pipe 23, the bracket 22 fixes the water inlet pipe 23, the flue gas enters the inside of the protective shell 21 from the flue gas pipe 1, the heat is transmitted to the cold water in the inside of the heat exchange pipe 24 through the heat conduction pipe 25, due to the spiral shape of the heat exchange pipe 24, the water in the inside can be fully heated, and the heated hot water is transmitted to the inside of the water storage device 27 through the water outlet pipe 26;

[0047] The heated hot water enters the inside of the water storage tank 271 from the water inlet 272 and is temporarily stored in the inside of the water storage tank 271, the hot water in the inside of the water storage tank 271 can be taken out through the water outlet valve 276 when needed;

[0048] Or the hot water in the inside of the water storage tank 271 is further heated by the heating pipe 275, at this time the input end of the steam engine can be connected to the output end of the steam outlet 273 by taking down the plug 274, at this time the hot water heated by the heating pipe 275 again will boil to generate steam to provide power for the steam engine;

[0049] The flue gas passing through the waste heat recovery mechanism 2 is transmitted to the inside of the protective shell 21, at this time the motor 33 drives the accelerating fan blade 34 to rotate to generate suction, accelerate the flow of flue gas, improve the exhaust efficiency, at this time the flue gas is blocked by the ash filter screen 39, so that the dust in the flue gas is blocked on the side of the ash filter screen 39;

[0050] When the flue gas emission is finished, the ash filter screen 39 can be taken out by the movable frame 37 for cleaning, at this time the scraper 36 scrapes the dust attached to the surface of the ash filter screen 39, and the dust falls into the inside of the storage device 38 through the ash outlet 35;

[0051] The falling dust slides on the top surface of the ash storage bin 382 through the guide of the ash accumulation bin 381, and is accumulated in the inside of the ash hopper 383, the ash hopper 383 can be taken out by the handle 384 to process the dust.

[0052] The above has made a detailed description of the utility model, but on the basis of the utility model, some modifications or improvements can be made, which is obvious to those skilled in the art. Therefore, within the range of modification or improvement without departing from the spirit of the utility model, it is within the protection scope of the utility model.

Claims

1. A coke waste heat recovery device comprising a flue gas duct (1), characterized in that: The output end of the smoke exhaust pipe (1) is provided with a waste heat recovery mechanism (2), and the output end of the waste heat recovery mechanism (2) is provided with a flue gas filtering mechanism (3); The waste heat recovery mechanism (2) comprises a protective shell (21) fixedly connected to the output end of the smoke exhaust pipe (1), a support (22) fixedly connected to one end of the outer surface of the protective shell (21), a water inlet pipe (23) fixedly connected to the inside of the support (22), a water outlet pipe (26) fixedly connected to the bottom surface of the other end of the outer surface of the protective shell (21), and a water storage device (27) provided at the output end of the water outlet pipe (26). The protective shell (21) is fixedly connected with a heat exchange pipe (24), the water inlet pipe (23) is fixedly connected to the input end of the heat exchange pipe (24), the water outlet pipe (26) is fixedly connected to the output end of the heat exchange pipe (24), and the outer surface of the heat exchange pipe (24) is fixedly connected with a heat conduction pipe (25), one end of the outer surface of the heat conduction pipe (25) is fixedly connected to the inside of the protective shell (21).

2. A coke waste heat recovery device according to claim 1, characterized in that: The water storage device (27) comprises a water storage tank (271), a water inlet (272) is formed in one end of the top surface of the water storage tank (271), the water inlet (272) is fixedly connected to the output end of the water outlet pipe (26), and the output end of the water storage tank (271) is fixedly connected with a water outlet valve (276).

3. A coke waste heat recovery device according to claim 2, characterized in that: The other end of the top surface of the water storage tank (271) is fixedly connected with a steam outlet (273), the inside of the steam outlet (273) is threadedly connected with a plug (274), and the inside bottom surface of the water storage tank (271) is fixedly connected with a heating pipe (275).

4. A coke waste heat recovery device according to claim 3, characterized in that: The flue gas filtering mechanism (3) comprises a connecting pipe (31) fixedly connected to the other end of the outer surface of the protective shell (21), a fixed frame (32) fixedly connected to one end of the inside of the connecting pipe (31), a motor (33) fixedly connected to the inside of the fixed frame (32), and an accelerating fan blade (34) fixedly connected to the output end of the motor (33).

5. A coke waste heat recovery device according to claim 4, characterized in that: An activity frame (37) is movably connected to the inside of the side surface of the connecting pipe (31), a filter ash net (39) is fixedly connected to the inside of the activity frame (37), a scraper (36) is fixedly connected to the middle of the inside of the connecting pipe (31), the activity frame (37) is movably connected to the side surface of the scraper (36), an ash outlet (35) is formed in the inside of the connecting pipe (31), and a storage device (38) is arranged on the bottom surface of the connecting pipe (31).

6. A coke waste heat recovery device according to claim 5, characterized in that: The storage device (38) comprises an ash accumulation bin (381) fixedly connected to the bottom surface of the connecting pipe (31), the ash outlet (35) is fixedly connected to the input end of the ash accumulation bin (381), and the bottom surface of the ash accumulation bin (381) is fixedly connected with an ash outlet bin (382).

7. A coke waste heat recovery device according to claim 6, characterized in that: The inside of the ash outlet bin (382) is movably connected with an ash chute (383), and the side surface of the ash chute (383) is fixedly connected with a handle (384).

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