Kiln waste heat recovery device

Abstract

The utility model provides a kiln waste heat recovery device, and relates to the technical field of kilns. A smoke inlet bottom cover is mounted at the top of the base; a gate valve is connected to the bottom of the smoke inlet bottom cover; a multi-pipe device is mounted at the top of the smoke inlet bottom cover, and a shell sleeves the outer part of the multi-pipe device; the top of the multi-pipe device is provided with a smoke exhaust top cover, the top of the smoke inlet bottom cover is fixedly connected with a top frame, and the center of the top of the top frame is connected with a worm wheel; a lifting plate is installed in the top frame and connected with the worm gear. A motor and a worm are installed on the top of the top frame, and a driving shaft of the motor is connected with the worm. After the device is used for a period of time, impurities contained in smoke are attached to the interior of the multi-tube device, the motor drives the worm to rotate, the worm drives the worm gear to rotate, the worm gear drives the lifting plate to move downwards, the scraping cone moves into the multi-tube device, the impurities attached to the inner wall of the multi-tube device are cleaned through the scraping cone, the heat conduction effect of the multi-tube device is guaranteed, and the service life of the multi-tube device is prolonged. Therefore, the waste heat recovery effect of the device is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of kilns, and in particular to a kiln waste heat recovery device. Background Art

[0002] A kiln is a furnace used to fire ceramics and sculptures or to fuse enamel to the surface of metal objects. It is usually made of bricks and stones and can be made into various sizes according to needs. Since the kiln emits a large amount of high-temperature smoke during operation, it is usually equipped with a waste heat recovery device to achieve waste heat recovery and reuse for energy conservation and environmental protection.

[0003] After the existing kiln waste heat recovery device has been used for a period of time, impurities contained in the flue gas will adhere to the inside of the device, causing the heat conduction effect inside the device to deteriorate, affecting the waste heat recovery effect of the device. It is necessary to manually disassemble the device regularly to manually clean the impurities attached to the inside. This process is relatively cumbersome and time-consuming. Utility Model Content

[0004] The disclosed embodiment relates to a waste heat recovery device for a kiln, which solves the problem that after the existing waste heat recovery device for a kiln has been used for a period of time, impurities contained in the flue gas adhere to the inside of the device, causing the heat conduction effect inside the device to deteriorate, affecting the waste heat recovery effect of the device, and requiring manual disassembly of the device regularly to manually clean the impurities attached to the inside, which is a cumbersome process and takes a long time.

[0005] In a first aspect of the present disclosure, a kiln waste heat recovery device is provided, which specifically includes: a base; a smoke inlet bottom cover is installed on the top of the base, and a gate valve is connected to the bottom of the smoke inlet bottom cover; a multi-tube device is installed on the top of the smoke inlet bottom cover, and a shell is installed on the outside of the multi-tube device; a smoke exhaust top cover is installed on the top of the multi-tube device, and a top frame is fixedly connected to the top of the smoke inlet bottom cover, and a worm gear is connected to the center of the top of the top frame; a lifting plate is installed inside the top frame, and the lifting plate is connected to the worm gear; a motor and a worm are installed on the top of the top frame, and the drive shaft of the motor is connected to the worm gear.

[0006] In at least some embodiments, the bottom of the multi-tube device is connected to the smoke inlet bottom cover, a smoke inlet port is provided outside the smoke inlet bottom cover, the smoke inlet port is connected to the kiln smoke exhaust pipeline, and the top of the multi-tube device is connected to the smoke exhaust top cover, a smoke exhaust port is provided outside the smoke exhaust top cover.

[0007] In at least some embodiments, an air inlet and an exhaust port are provided on the outside of the shell, and the exhaust port is connected to the air inlet pipeline of the kiln. The high-temperature flue gas exhausted by the kiln enters the multi-tube device through the smoke inlet bottom cover, and the outside air enters the kiln through the shell. The heat in the flue gas is released through the multi-tube device, and the multi-tube device heats the air circulating inside the shell, and uses the heat in the exhausted flue gas to preheat the air entering the kiln.

[0008] In at least some embodiments, the lifting plate slides in the top frame, vertical rods are arranged at the bottom of the lifting plate, sliding holes are arranged at the top of the smoke exhaust top cover, the vertical rods slide through the sliding holes, a scraper cone is provided at the bottom of the vertical rod, and the scraper cone is slidably connected to the multi-tube device.

[0009] In at least some embodiments, the worm gear is rotatably connected to the top frame, a screw hole is provided inside the worm gear, a screw rod is provided in the middle portion of the top of the lifting plate, and the screw rod is threadedly connected in the screw hole.

[0010] In at least some embodiments, the worm is rotatably connected to the top frame, and the worm is transmission-connected to the worm gear. After the device has been used for a period of time, impurities contained in the flue gas adhere to the inside of the multi-tube device, and the motor drives the worm to rotate, which drives the worm gear to rotate, and the worm gear drives the lifting plate to move downward, so that the scraper cone moves to the inside of the multi-tube device, and the impurities attached to the inner wall of the multi-tube device are cleaned by the scraper cone.

[0011] In at least some embodiments, the smoke inlet bottom cover is a funnel-shaped structure, a waste outlet is provided at the bottom of the smoke inlet bottom cover, and the gate valve is connected to the waste outlet.

[0012] The utility model provides a kiln waste heat recovery device, which has the following beneficial effects:

[0013] When the utility model is in use, the high-temperature flue gas discharged by the kiln enters the multi-tube device through the smoke inlet bottom cover, and the outside air enters the kiln through the outer shell. The heat in the flue gas is released through the multi-tube device, and the multi-tube device heats the air circulating inside the outer shell, and uses the heat in the discharged flue gas to preheat the air entering the kiln, thereby recovering the waste heat of the kiln, reducing heat loss, thereby reducing the energy consumption of the kiln operation, and being more energy-saving and environmentally friendly.

[0014] In addition, after the device has been used for a period of time, impurities contained in the flue gas adhere to the inside of the multi-tube device, affecting the heat conduction effect of the multi-tube device. The motor drives the worm to rotate, the worm drives the worm wheel to rotate, and the worm wheel drives the lifting plate to move downward, so that the scraper cone moves to the inside of the multi-tube device, and the impurities attached to the inner wall of the multi-tube device are cleaned by the scraper cone to ensure the heat conduction effect of the multi-tube device, thereby ensuring the waste heat recovery effect of the device; the impurities cleaned by the scraper cone fall into the bottom of the smoke inlet bottom cover, the gate valve is opened, and the impurities are discharged through the waste outlet, which is convenient for the staff to collect the impurities and the operation is easier.

[0015] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solution of the embodiment of the utility model, the drawings of the embodiment will be briefly introduced below.

[0017] The drawings described below only relate to some embodiments of the present invention, but are not intended to limit the present invention.

[0018] In the attached picture:

[0019] Figure 1 The overall axial structure schematic diagram of the kiln waste heat recovery device of the present application is shown;

[0020] Figure 2 A schematic diagram showing the split structure of the smoke inlet bottom cover, multi-tube device and smoke exhaust top cover of the kiln waste heat recovery device of the present application is shown;

[0021] Figure 3 A schematic diagram of the cross-sectional connection structure of the smoke inlet bottom cover, the multi-tube device and the smoke exhaust top cover of the kiln waste heat recovery device of the present application is shown;

[0022] Figure 4 A schematic diagram of the axial structure of the lifting plate of the kiln waste heat recovery device of the present application is shown;

[0023] Figure 5 A schematic diagram of the worm gear and worm transmission connection structure of the kiln waste heat recovery device of the present application is shown.

[0024] Reference numerals list

[0025] 1. Base; 2. Smoke inlet bottom cover; 201. Smoke inlet; 202. Waste outlet; 3. Gate valve; 4. Multi-tube device; 5. Shell; 501. Air inlet; 502. Exhaust outlet; 6. Smoke exhaust top cover; 601. Smoke exhaust outlet; 602. Slide hole; 7. Top frame; 8. Worm gear; 801. Screw hole; 9. Lifting plate; 901. Vertical rod; 9011. Scraper cone; 902. Screw; 10. Motor; 11. Worm. Implementation

[0026] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] Example 1: Please refer to Figures 1 to 5 :

[0028] The utility model proposes a kiln waste heat recovery device, comprising: a base 1; a smoke inlet bottom cover 2 is installed on the top of the base 1, and a gate valve 3 is connected to the bottom of the smoke inlet bottom cover 2; a multi-tube device 4 is installed on the top of the smoke inlet bottom cover 2, and a shell 5 is sleeved on the outside of the multi-tube device 4; a smoke exhaust top cover 6 is installed on the top of the multi-tube device 4, a top frame 7 is fixedly connected to the top of the smoke inlet bottom cover 2, and a worm gear 8 is connected to the center of the top of the top frame 7; a lifting plate 9 is installed inside the top frame 7, and the lifting plate 9 is connected to the worm gear 8; a motor 10 and a worm 11 are installed on the top of the top frame 7, and the driving shaft of the motor 10 is connected to the worm 11; the bottom of the multi-tube device 4 is connected to the smoke inlet bottom cover 2, and a smoke inlet port 201 is provided on the outside of the smoke inlet bottom cover 2. 201 is connected with the kiln smoke exhaust pipeline, the top of the multi-tube device 4 is connected with the smoke exhaust top cover 6, and the outside of the smoke exhaust top cover 6 is provided with a smoke exhaust port 601; the outside of the outer shell 5 is provided with an air inlet 501 and an exhaust port 502, and the exhaust port 502 is connected with the kiln air inlet pipeline, and the high-temperature flue gas exhausted by the kiln enters the multi-tube device 4 through the smoke inlet bottom cover 2, and the outside air enters the kiln through the outer shell 5. The heat in the flue gas is released through the multi-tube device 4, and the multi-tube device 4 heats the air circulating inside the outer shell 5, and uses the heat in the exhausted flue gas to preheat the air entering the kiln, which has the effect of recovering the waste heat of the kiln, reducing heat loss, thereby reducing the energy consumption of the kiln operation, and being more energy-saving and environmentally friendly.

[0029] In the disclosed embodiment, the lifting plate 9 slides in the top frame 7, the bottom of the lifting plate 9 is arranged with vertical rods 901, the top of the smoke exhaust cover 6 is arranged with sliding holes 602, the vertical rods 901 slide through the sliding holes 602, the bottom of the vertical rods 901 is provided with a scraper cone 9011, the scraper cone 9011 is slidably connected to the multi-tube device 4, the worm gear 8 is rotatably connected to the top frame 7, the worm gear 8 is provided with a screw hole 801, the middle part of the top of the lifting plate 9 is provided with a screw 902, the screw 902 is threadedly connected to the screw hole 801, and the worm 11 is rotatably connected to the top frame 7 The worm 11 is dynamically connected and is transmission-connected with the worm wheel 8; by adopting the above technical scheme, after the device has been used for a period of time, impurities contained in the flue gas adhere to the inside of the multi-tube device 4, affecting the heat conduction effect of the multi-tube device 4, the motor 10 drives the worm 11 to rotate, the worm 11 drives the worm wheel 8 to rotate, and the worm wheel 8 drives the lifting plate 9 to move downward, so that the scraper cone 9011 moves to the inside of the multi-tube device 4, and the impurities attached to the inner wall of the multi-tube device 4 are cleaned by the scraper cone 9011, so as to ensure the heat conduction effect of the multi-tube device 4, thereby ensuring the waste heat recovery effect of the device.

[0030] Embodiment 2, on the basis of embodiment 1, the smoke inlet bottom cover 2 is funnel-shaped, a waste outlet 202 is provided at the bottom of the smoke inlet bottom cover 2, and the gate valve 3 is connected to the waste outlet 202; by adopting the above technical scheme, the impurities cleaned by the scraper cone 9011 fall into the bottom of the smoke inlet bottom cover 2, and the gate valve 3 is opened, and the impurities are discharged through the waste outlet 202, which is convenient for the staff to collect the impurities and the operation is simpler.

[0031] The working principle of this embodiment is as follows: the high-temperature flue gas discharged from the kiln enters the multi-tube device 4 through the smoke inlet bottom cover 2, and the outside air enters the kiln through the outer shell 5. The heat in the flue gas is released through the multi-tube device 4, and the multi-tube device 4 heats the air circulating inside the outer shell 5. The heat in the discharged flue gas is used to preheat the air entering the kiln, thereby reducing the energy consumption of the kiln operation. After the device has been used for a period of time, the impurities contained in the flue gas adhere to the inside of the multi-tube device 4, affecting the heat conduction effect of the multi-tube device 4. The motor 10 drives the worm 11 to rotate, the worm 11 drives the worm wheel 8 to rotate, and the worm wheel 8 drives the lifting plate 9 to move downward, so that the scraper cone 9011 moves to the inside of the multi-tube device 4, and the impurities attached to the inner wall of the multi-tube device 4 are cleaned by the scraper cone 9011. The impurities cleaned by the scraper cone 9011 fall into the bottom of the smoke inlet bottom cover 2, and the gate valve 3 is opened, and the impurities can be discharged through the waste outlet 202.

[0032] In this article, there are a few points to note:

[0033] 1. The drawings of the embodiments of the present disclosure only involve structures related to the embodiments of the present disclosure, and other structures may refer to general designs.

[0034] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to obtain new embodiments.

[0035] The above are only specific embodiments of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A kiln waste heat recovery device, comprising: A base (1); characterized in that a smoke inlet bottom cover (2) is installed on the top of the base (1), and a gate valve (3) is connected to the bottom of the smoke inlet bottom cover (2); a multi-tube device (4) is installed on the top of the smoke inlet bottom cover (2), and a shell (5) is mounted on the outside of the multi-tube device (4); a smoke exhaust top cover (6) is installed on the top of the multi-tube device (4), a top frame (7) is fixedly connected to the top of the smoke inlet bottom cover (2), and a worm gear (8) is connected to the center of the top of the top frame (7); a lifting plate (9) is installed inside the top frame (7), and the lifting plate (9) is connected to the worm gear (8); a motor (10) and a worm (11) are installed on the top of the top frame (7), and the drive shaft of the motor (10) is connected to the worm gear (11).

2. A kiln waste heat recovery device according to claim 1, characterized in that: The bottom of the multi-tube device (4) is connected to the smoke inlet bottom cover (2), a smoke inlet port (201) is provided outside the smoke inlet bottom cover (2), the smoke inlet port (201) is connected to the kiln smoke exhaust pipeline, the top of the multi-tube device (4) is connected to the smoke exhaust top cover (6), and a smoke exhaust port (601) is provided outside the smoke exhaust top cover (6).

3. The kiln waste heat recovery device according to claim 1, characterized in that: An air inlet (501) and an air outlet (502) are provided outside the shell (5), and the air outlet (502) is connected to the kiln air inlet pipeline.

4. The kiln waste heat recovery device according to claim 1, characterized in that: The lifting plate (9) slides in the top frame (7); the bottom of the lifting plate (9) is provided with vertical rods (901) in an arranged manner; the top of the smoke exhaust top cover (6) is provided with sliding holes (602) in an arranged manner; the vertical rods (901) slide through the sliding holes (602); a scraping cone (9011) is provided at the bottom end of the vertical rod (901); and the scraping cone (9011) is slidably connected to the multi-tube device (4).

5. The kiln waste heat recovery device according to claim 1, characterized in that: The worm wheel (8) is rotatably connected to the top frame (7), a screw hole (801) is provided inside the worm wheel (8), a screw rod (902) is provided at the middle part of the top of the lifting plate (9), and the screw rod (902) is threadedly connected to the screw hole (801).

6. The kiln waste heat recovery device according to claim 1, characterized in that: The worm (11) is rotationally connected to the top frame (7), and the worm (11) is transmission-connected to the worm wheel (8).

7. The kiln waste heat recovery device according to claim 1, characterized in that: The smoke inlet bottom cover (2) is of a funnel-shaped structure, a waste discharge port (202) is provided at the bottom of the smoke inlet bottom cover (2), and the gate valve (3) is in communication with the waste discharge port (202).

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