Solid waste treatment combustion boiler for preventing coking

Abstract

The utility model relates to a kind of solid waste treatment combustion boiler of preventing coking, including boiler body, multiple intermittent rapping devices are installed on the boiler membrane wall of boiler body, the intermittent rapping device includes motor, hitting hammer and resonance plate, the hitting hammer is driven by the motor, the motor is fixedly installed on the outer wall of the boiler body, the resonance plate is fixedly installed on the boiler membrane wall, so that the motor drives the hitting hammer swing and impact the resonance plate.The utility model is installed on the boiler membrane wall by multiple intermittent rapping devices, the hitting hammer swing and impact resonance plate using motor, the vibration generated can promptly shake off ash and other impurities on the boiler membrane wall, prevent its accumulation to form coking, keep heating surface clean, improve the heat transfer efficiency and operating stability of boiler.

Description

Technical Field

[0001] This utility model relates to the field of solid waste treatment technology, specifically to a solid waste treatment combustion boiler that prevents coking. Background Technology

[0002] Hazardous waste incineration lines are a method of reducing the volume of hazardous waste by using the principle of high-temperature incineration. The incineration process mainly involves solid waste and waste liquid.

[0003] During the rotary kiln incineration of solid waste, unburned gases and particulate matter are generated due to oxygen and the nature of the materials themselves. Unburned gases such as CO and SO2, as well as unburned particulate matter, enter the secondary combustion chamber for combustion. After combustion, oxides are formed, which are mainly composed of salts and ash.

[0004] Salts and ash enter the boiler due to the negative pressure induced draft. The outlet temperature of the secondary combustion chamber is 1100℃. The temperature begins to drop in the primary combustion chamber. As the temperature decreases, salts and ash begin to adhere to the boiler membrane wall, forming coke.

[0005] Coking affects the boiler's heat exchange efficiency, reduces steam production, and causes the boiler outlet temperature to rise, leading to an increase in dioxins produced in the flue gas. Utility Model Content

[0006] The purpose of this invention is to provide a solid waste treatment combustion boiler that prevents coking. This invention, through the design of an intermittent rapping device, can effectively improve the problem of coking in the combustion boiler during solid waste treatment and improve the boiler's heat transfer efficiency.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A solid waste treatment combustion boiler for preventing coking includes a boiler body. Multiple intermittent rapping devices are installed on the boiler membrane wall of the boiler body. Each intermittent rapping device includes a motor, a hammer, and a resonant plate. The hammer is driven by the motor, which is fixedly installed on the outer wall of the boiler body. The resonant plate is fixedly installed on the boiler membrane wall, so that the motor drives the hammer to swing and strike the resonant plate.

[0009] Preferably, the output shaft of the motor is connected to a reducer, and a turntable is connected to the output shaft of the reducer. The striking hammer is rotatably mounted on the output shaft of the reducer. The turntable is also provided with a stop lever, which cooperates with a slot on the hammer handle of the striking hammer, so that when the striking hammer moves passively away from the resonance plate, the stop lever is held by the slot, and when the striking hammer moves actively away from the resonance plate, the stop lever naturally disengages from the slot.

[0010] Preferably, the end of the striking hammer that contacts the resonant plate is provided with a detachable wear-resistant alloy head, which is fitted into the striking hammer through a dovetail groove structure and fixed by an anti-loosening bolt.

[0011] Preferably, the edge of the turntable is provided with multiple adjustment holes, and the stop bar can be detachably installed in any of the adjustment holes by bolts to adjust the swing amplitude of the striking hammer.

[0012] Preferably, the number of intermittent rapping devices is not less than eight, and they are arranged in pairs along the height direction of the boiler membrane wall and the geometric center line of the boiler.

[0013] Preferably, the surface of the resonant plate is coated with a nano-ceramic coating to improve its anti-adhesion and corrosion resistance.

[0014] Compared with the prior art, the technical solution of this application has the following technical effects:

[0015] This invention installs multiple intermittent rapping devices on the boiler membrane wall. The motor drives the hammer to swing and strike the resonant plate. The resulting vibration can shake off ash and other impurities on the boiler membrane wall in a timely manner, preventing them from accumulating and forming coke, keeping the heating surface clean, and improving the boiler's heat transfer efficiency and operational stability. Attached Figure Description

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Figure 1 This is a schematic diagram of the structure of one embodiment of the present utility model.

[0018] Figure 2 This is a schematic diagram of the structure of the interrupted and continuous vibration device of this utility model.

[0019] Figure 3 This is a schematic diagram of another device structure of the interrupted and continuous vibration device of this utility model.

[0020] In the diagram: 10. Boiler body; 11. Boiler membrane wall; 20. Intermittent rapping device; 21. Motor; 22. Hammer; 23. Resonance plate; 24. Reducer; 25. Turntable; 26. Stop bar; 27. Bayonet; 28. Wear-resistant alloy head; 29. ​​Adjustment hole. Detailed Implementation

[0021] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0022] As a preferred embodiment of this utility model, see attached... Figures 1-3 As shown: This embodiment provides a solid waste treatment combustion boiler for preventing coking, including a boiler body 10. Multiple intermittent vibration devices 20 are installed on the boiler membrane wall 11 of the boiler body 10. Each intermittent vibration device 20 includes a motor 21, a hammer 22, and a resonant plate 23. The hammer 22 is driven by the motor 21, which is fixedly installed on the outer wall of the boiler body 10. The resonant plate 23 is fixedly installed on the boiler membrane wall 11, so that the motor 21 drives the hammer 22 to swing and strike the resonant plate 23.

[0023] In the above embodiments, such as Figure 2 and Figure 3 As shown, the output shaft of the motor 21 is connected to the reducer 24, and the output shaft of the reducer 24 is connected to the turntable 25. The striking hammer 22 is rotatably mounted on the output shaft of the reducer 24. The turntable 25 is also provided with a stop lever 26. The stop lever 26 cooperates with a slot 27 opened on the hammer handle of the striking hammer 22, so that when the striking hammer 22 moves passively away from the resonance plate 23, the stop lever 26 is held by the slot 27. When the striking hammer 22 moves actively away from the resonance plate 23, the stop lever 26 naturally disengages from the slot 27.

[0024] In the above embodiments, during the actual vibration process, the striking hammer 22 will react and move after striking the resonant plate 23. Since the striking hammer 22 is rotatably mounted on the output shaft of the reducer 24, the mutual cooperation between the stop lever 26 and the bayonet 27 on the hammer handle ensures the different states of the striking hammer when it moves away from the resonant plate passively and actively, ensuring the reliability and stability of the device operation, and enabling the striking action to be carried out continuously and effectively.

[0025] In the above embodiment, the end of the striking hammer 22 that contacts the resonant plate 23 is provided with a detachable wear-resistant alloy head 28. The wear-resistant alloy head 28 is fitted with the striking hammer 22 through a dovetail groove structure and is fixed by an anti-loosening bolt.

[0026] In the above embodiment, the end of the striking hammer is equipped with a detachable wear-resistant alloy head 28, which improves the wear resistance of the striking hammer, extends its service life, and reduces maintenance costs. Simultaneously, the wear-resistant alloy head adopts a dovetail groove structure, is embedded in the striking hammer, and is fixed by anti-loosening bolts, facilitating replacement. The resonant plate surface is coated with a nano-ceramic coating, improving its anti-adhesion and corrosion resistance.

[0027] In a preferred embodiment, such as Figure 2 As shown, the edge of the turntable 25 is provided with multiple adjustment holes 29, and the stop bar 26 is detachably installed in any of the adjustment holes 29 by bolts, for adjusting the swing amplitude of the striking hammer 22.

[0028] In this embodiment, multiple adjustment holes are provided on the edge of the turntable, and the stop bar 26 can be installed in different adjustment holes by bolts, which can adjust the swing amplitude of the hammer and thus change the striking force.

[0029] In some preferred embodiments, the motor 21 is a variable frequency motor, and the speed of the motor 21 can be adjusted by the variable frequency control system through the frequency converter. The speed adjustment range can be designed to be 10-100 r / min.

[0030] In some preferred embodiments, the number of intermittent rapping devices 20 is no less than eight, arranged in pairs along the height direction of the boiler membrane wall 11 and the geometric center line of the boiler. This embodiment can more comprehensively rappel and remove slag from the boiler membrane wall, avoid dead corners in slag removal, ensure that the entire surface of the membrane wall is effectively cleaned, and further improve the effect of preventing slag formation.

[0031] In the above embodiment, the surface of the resonant plate 23 is coated with a nano-ceramic coating. The nano-ceramic coating has a hardness ≥ HRC65 and a thickness of 0.1-0.3 mm, which is used to improve anti-adhesion performance and corrosion resistance.

[0032] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A solid waste treatment combustion boiler for preventing coking, comprising a boiler body (10), characterized in that: Multiple intermittent rapping devices (20) are installed on the boiler membrane wall (11) of the boiler body (10). The intermittent rapping device (20) includes a motor (21), a hammer (22) and a resonant plate (23). The hammer (22) is driven by the motor (21). The motor (21) is fixedly installed on the outer wall of the boiler body (10). The resonant plate (23) is fixedly installed on the boiler membrane wall (11). The motor (21) drives the hammer (22) to swing and strike the resonant plate (23).

2. A solid waste treatment combustion boiler for preventing coking according to claim 1, characterized in that: The output shaft of the motor (21) is connected to the reducer (24), and the output shaft of the reducer (24) is connected to the turntable (25). The hammer (22) is rotatably mounted on the output shaft of the reducer (24). The turntable (25) is also provided with a stop bar (26). The stop bar (26) cooperates with a slot (27) opened on the hammer handle of the hammer (22), so that when the hammer (22) moves passively away from the resonance plate (23), the stop bar (26) is held by the slot (27). When the hammer (22) moves actively away from the resonance plate (23), the stop bar (26) naturally disengages from the slot (27).

3. A solid waste treatment combustion boiler for preventing coking according to claim 2, characterized in that: The end of the striking hammer (22) that contacts the resonant plate (23) is provided with a detachable wear-resistant alloy head (28). The wear-resistant alloy head (28) is fitted with the striking hammer (22) through a dovetail groove structure and fixed by anti-loosening bolts.

4. A solid waste treatment combustion boiler for preventing coking according to claim 2, characterized in that: The turntable (25) has multiple adjustment holes (29) on its edge. The stop bar (26) can be detachably installed in any adjustment hole (29) by bolts to adjust the swing amplitude of the hammer (22).

5. A solid waste treatment combustion boiler for preventing coking according to claim 1, characterized in that: The motor (21) is a variable frequency motor.

6. A solid waste treatment combustion boiler for preventing coking according to claim 1, characterized in that: The number of intermittent rapping devices (20) is not less than 8, and they are arranged in pairs along the height direction of the boiler membrane wall (11) with respect to the geometric center line of the boiler.

7. A solid waste treatment combustion boiler for preventing coking according to claim 1, characterized in that: The resonant plate (23) is coated with a nano-ceramic coating with a thickness of 0.1-0.3 mm to improve its anti-adhesion and corrosion resistance.

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