Rapid decoking tool for household garbage incinerator

Abstract

The utility model discloses a rapid decoking tool for a household garbage incinerator. An ultrasonic generator comprises a power supply circuit, an oscillator and a power amplifier which are electrically connected in sequence; the power amplifier is connected with the ultrasonic transducer through a connecting cable, a tool bit fixing device is arranged at the tail part of the ultrasonic transducer, and the coking cutting tool bit is detachably mounted on the tool bit fixing device. The ultrasonic generator converts electric energy into high-frequency alternating-current electric signals matched with the ultrasonic transducer through an external circuit, the high-frequency alternating-current electric signals are transmitted to the ultrasonic transducer through the connecting cable, and then the alternating-current electric signals are converted into mechanical kinetic energy to be gathered on the coking cutting tool bit. Coked blocks in the household garbage incinerator can be easily cut, the shutdown time of the household garbage incinerator is shortened, the maintenance working time and the maintenance cost are effectively reduced, and good economic benefits are achieved.

Description

Technical Field

[0001] This utility model relates to the technical field of boiler cleaning equipment, and in particular to a rapid descaling tool for municipal solid waste incinerators. Background Technology

[0002] With the development of urbanization across the country, the amount of domestic waste has increased rapidly along with the development of productivity. Incineration of domestic waste has gradually become the mainstream development direction for harmlessness, resource utilization and volume reduction. A domestic waste incinerator is an energy conversion device that converts the chemical energy in domestic waste into electrical energy. Due to the complexity of domestic waste, as well as the large temperature fluctuations in the furnace, high furnace temperature and changes in the flame flow field, hard coke deposits adhere to the inner wall of the furnace. At the same time, as the incinerator is running, the coke deposits will continue to grow, reducing the horizontal cross-sectional area of ​​the furnace flue, resulting in increased flue gas loss and reduced incineration efficiency. In severe cases, it may force the incinerator to shut down, shortening the service life of the incinerator.

[0003] To remove these coke lumps, the waste incineration industry currently employs both manual and mechanical methods. Manual removal requires erecting scaffolding inside the furnace and using handheld electric picks, which is inefficient and yields poor results. Mechanical removal typically damages the furnace walls, necessitating re-bricklaying, insulation, and recasting, further extending downtime, increasing maintenance time and costs, and impacting economic efficiency. Both manual and mechanical removal methods are costly, involve extensive cleaning processes, and contribute to environmental degradation with high dust concentrations. The broken, hard, and irregular coke lumps randomly fall and damage the scaffolding and bottom grate within the furnace.

[0004] Ultrasonic cutters, due to their advantages such as high cutting strength (metals, diamonds), wide cutting range (including sticky, soft, and hard materials), low production and usage costs, minimal cutting debris, and smooth cuts, have gained recognition in the medical, cosmetic, artistic, and precision machining fields. However, there has been no application of ultrasonic cutters in the boiler cleaning field, which could improve the current industry status quo. Therefore, ultrasonic cutters have enormous application potential in cutting coke deposits in furnaces.

[0005] It is evident that existing technologies still need improvement and enhancement. Utility Model Content

[0006] In view of the shortcomings of the prior art, the purpose of this utility model is to provide a rapid descaling tool for municipal solid waste incinerators, which solves the problems of high difficulty and low efficiency in descaling incinerators in the prior art.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a rapid coking removal tool for a municipal solid waste incinerator, comprising an ultrasonic generator, a connecting cable, and a handheld transducer. The ultrasonic generator comprises a power supply circuit, an oscillator, and a power amplifier connected in sequence. The handheld transducer comprises an ultrasonic transducer, a blade fixing device, and a coking cutting blade. The power amplifier is connected to the ultrasonic transducer via the connecting cable. The blade fixing device is provided at the tail of the ultrasonic transducer, and the coking cutting blade is detachably mounted on the blade fixing device.

[0008] In one embodiment of the present invention, the coking cutting head is a straight shank head or a crank head head. The crank head head includes a connected shank portion and a head portion. The angle between the shank portion and the head portion is 105°. The shank portion is mounted on the head fixing device.

[0009] The beneficial effects of the above embodiments are that they provide two different types of cutting head selection: the straight shank cutting head is suitable for straight cutting, while the crank shank cutting head is more suitable for curved cutting in confined spaces, increasing the applicability and flexibility of the tool.

[0010] In one embodiment of this utility model, the coking cutting head is made of cemented carbide steel.

[0011] The beneficial effects of the above embodiments are that the cutting head made of cemented carbide steel has higher hardness and wear resistance, can better resist high temperature and wear, and extend the service life of the tool.

[0012] In one embodiment of the present invention, a handle is also included, wherein the handle is provided at the middle and top of the ultrasonic transducer.

[0013] The beneficial effects of the above embodiments are that the handle makes it easier for the operator to hold and use the tool more comfortably, reduces hand fatigue, and improves work efficiency.

[0014] In one embodiment of this utility model, the rated voltage of the power supply circuit is 220V / 380V.

[0015] The beneficial effect of the above embodiments is that the power supply circuit is compatible with two common power supply voltage options, enabling the tool to work normally under the standard voltage in different regions, thus enhancing its versatility and adaptability.

[0016] In one embodiment of the present invention, the handheld transducer further includes an amplitude transformer, and the ultrasonic transducer is fixedly connected to the blade fixing device through the amplitude transformer.

[0017] The beneficial effects of the above embodiments are as follows: the amplitude transformer converts ultrasonic electrical energy into mechanical energy, increases the amplitude, and can amplify the displacement or velocity of the mechanically vibrating particles, and concentrate the ultrasonic energy on a smaller area, thereby making the vibration of the cutter head more intense and enhancing the cutting effect.

[0018] In one embodiment of the present invention, a roller and a telescopic rod are further included. The roller is rotatably disposed at the bottom of the ultrasonic generator, and the telescopic rod is installed on the side of the ultrasonic generator.

[0019] The advantages of the above embodiments are that using telescopic rods and wheels for daily handling makes it easier to move and position the ultrasonic generator, improving operational flexibility and convenience.

[0020] In one embodiment of this utility model, the ultrasonic generator is provided with a handle.

[0021] The beneficial effect of the above embodiments is that the handle allows the operator to easily lift and move the ultrasonic generator, increasing the ease of use.

[0022] In one embodiment of this utility model, the cutter head fixing device is a threaded retainer.

[0023] The beneficial effects of the above embodiments are as follows: the threaded retainer, as a cutter head fixing device, can ensure a tight connection between the coking cutter head and the ultrasonic transducer, avoiding loosening or falling off during use, and improving the stability and safety of the tool.

[0024] As described above, the rapid decoking tool for municipal solid waste incinerators of this utility model has the following beneficial effects: the ultrasonic generator converts electrical energy into a high-frequency AC signal that matches the ultrasonic transducer through an external circuit. The high-frequency AC signal is transmitted to the ultrasonic transducer through a connecting cable, and then the AC signal is converted into mechanical kinetic energy and focused onto the coking cutting head, which can easily cut the coking blocks in the municipal solid waste incinerator, reduce the downtime of the municipal solid waste incinerator, effectively reduce maintenance time and maintenance costs, and has good economic benefits. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1A schematic diagram of the structure of the rapid decoking tool for a municipal solid waste incinerator provided by this utility model;

[0027] Figure 2 A schematic diagram of the crank blade head structure of the rapid descaling tool for municipal solid waste incinerators provided by this utility model.

[0028] Component designation explanation

[0029] 1. Ultrasonic generator; 6. Coking cutting head

[0030] 2 Connecting cable 7 Grip

[0031] 3 handheld transducers and 8 rollers

[0032] 4. Ultrasonic transducer; 9. Telescopic rod

[0033] 5. Cutter head fixing device; 10. Handle Detailed Implementation

[0034] This utility model provides a rapid descaling tool for municipal solid waste incinerators. To make the purpose, technical solution and effects of this utility model clearer and more explicit, the following describes this utility model in further detail with reference to the accompanying drawings and embodiments.

[0035] In the description of this utility model, it should be understood that the terms "up, down, left, right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and should not be construed as limiting this utility model; in addition, the terms "installation," "connection," etc. should be interpreted broadly, and those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] Please see Figure 1 and Figure 2 This utility model provides a rapid decoking tool for municipal solid waste incinerators, including an ultrasonic generator 1, a connecting cable 2, and a handheld transducer 3. The ultrasonic generator 1 includes a power supply circuit, an oscillator, and a power amplifier connected in sequence. The handheld transducer 3 includes an ultrasonic transducer 4, a blade fixing device 5, and a coking cutting blade 6. The power amplifier is connected to the ultrasonic transducer 4 through the connecting cable 2. The blade fixing device 5 is provided at the tail of the ultrasonic transducer 4, and the coking cutting blade 6 is detachably installed on the blade fixing device 5.

[0037] The rated voltage of the power supply circuit is 220V / 380V, and the power range of the ultrasonic generator 1 is 1000-3000W. When the ultrasonic generator 1 is powered on, the power supply circuit generates a high-frequency signal, which is amplified by an oscillator and then amplified by a power amplifier to output a high-power, high-frequency ultrasonic signal. The ultrasonic generator 1 uses a transistor power supply, which converts the ultrasonic signal into a sinusoidal signal. The sinusoidal signal has a more stable frequency and waveform. In addition, the ultrasonic generator 1 also releases feedback signals, mainly including an output power signal and a frequency tracking signal. The output power signal is used to adjust the power amplifier to maintain a stable output power and ensure the stability of the cutting effect. The frequency tracking signal ensures that the ultrasonic generator 1 can track the resonant frequency of the transducer during operation and maintain optimal working condition.

[0038] The handheld transducer 3 converts the electrical signal from the ultrasonic generator 1 into mechanical vibration energy and generates ultrasonic waves. It is primarily composed of piezoelectric ceramic material and a metal sheet. When an external voltage is applied to the ceramic material, the ceramic material compresses or deforms under tension, causing the metal sheet to vibrate accordingly, thus generating ultrasonic vibrations. The handheld transducer 3 also includes an amplitude transformer. The ultrasonic transducer 4 is fixedly connected to the cutter head fixing device 5 via the amplitude transformer. The amplitude transformer converts ultrasonic electrical energy into mechanical energy, increasing the amplitude and amplifying the displacement or velocity of the mechanically vibrating particles. It also concentrates the ultrasonic energy onto a smaller area, making the cutter head vibrate more intensely and enhancing the cutting effect.

[0039] The ultrasonic frequency of the coking cutting head 6 is 20kHz-80kHz. The ultrasonic frequency needs to be adjusted according to the hardness of the coking blocks on site. In actual use, the coking cutting head 6 vibrates 20,000-80,000 times per second. The coking cutting head 6 generates huge energy and acts on the coking blocks on the inner wall of the incinerator furnace. Without the need for strong external force, the coking cutting head 6 can easily cut the coking blocks on the inner wall of the municipal solid waste incinerator furnace.

[0040] In detail, the coking cutting head 6 is made of cemented carbide steel, and it is either a straight shank or a crank shank head. The crank shank head includes a connected shank and a head, with the angle between the shank and the head being 105°. The shank is mounted on the head fixing device 5. The coking cutting head 6, made of cemented carbide steel, has higher hardness and wear resistance, better resisting high temperatures and wear, thus extending the tool's service life. At the same time, two different types of heads are provided: a straight shank head suitable for straight cutting, and a crank shank head more suitable for curved cutting in confined spaces, increasing the tool's applicability and flexibility. In actual use, the straight shank cutter head is first used to cut the coke blocks in the front and rear arch areas and the lower part of the front and rear supply areas of the furnace. During the cutting process, the dust concentration is low. At the same time, the handheld transducer 3 has the advantages of simple structure and small weight, making it easy to operate and cut without effort. The cutting process is fast, and each cut can produce a complete and smooth cut. The coke blocks after cutting are also easy to manage. After the coke blocks protruding from the inner wall of the furnace are cleaned, the crank cutter head is used to repair the coke blocks on the inner wall of the furnace. All protruding surfaces on the inner wall of the furnace can be cleaned into smooth surfaces without damaging or affecting the fireproof bricks on the inner wall of the furnace. This significantly reduces the downtime of the municipal solid waste incinerator and increases the effective operating time of the municipal solid waste incineration plant.

[0041] Please see Figure 1 The ultrasonic transducer 4 also includes a handle 7, which is located at both the middle and top of the transducer. The handle 7 allows the operator to hold and use the tool more comfortably, reducing hand fatigue and improving work efficiency. The ultrasonic generator 1 also includes rollers 8, a telescopic rod 9, and a handle 10. The rollers 8 are rotatably located at the bottom of the ultrasonic generator 1, and the telescopic rod 9 is mounted on the side of the ultrasonic generator 1. The telescopic rod 9 and rollers 8 facilitate daily transport, making the ultrasonic generator 1 easier to move and position, improving operational flexibility and convenience. The handle 10 allows the operator to easily lift and carry the ultrasonic generator 1, increasing ease of use.

[0042] In this embodiment, the cutter head fixing device 5 is a threaded retainer, which can ensure a tight connection between the coking cutting cutter head 6 and the ultrasonic transducer 4, avoiding loosening or falling off during use, and improving the stability and safety of the tool.

[0043] In summary, the rapid decoking tool for municipal solid waste incinerators of this invention utilizes an ultrasonic generator 1, which, through an external circuit, converts electrical energy into a high-frequency AC signal matching the ultrasonic transducer 4. This high-frequency AC signal is transmitted to the ultrasonic transducer 4 via a connecting cable, and then converted into mechanical kinetic energy, which is focused onto the coking cutting head 6. This allows for easy cutting of coke deposits within the municipal solid waste incinerator, reducing incinerator downtime, effectively lowering maintenance time and costs, and resulting in significant economic benefits. Therefore, this invention effectively overcomes the various shortcomings of existing technologies and possesses high industrial application value.

[0044] It is understood that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of this utility model, and all such substitutions or changes should fall within the protection scope of this utility model.

Claims

1. A rapid descaling tool for municipal solid waste incinerators, characterized in that, The device includes an ultrasonic generator, a connecting cable, and a handheld transducer. The ultrasonic generator includes a power supply circuit, an oscillator, and a power amplifier connected in sequence. The handheld transducer includes an ultrasonic transducer, a blade fixing device, and a coking cutting blade. The power amplifier is connected to the ultrasonic transducer via the connecting cable. The blade fixing device is located at the tail of the ultrasonic transducer, and the coking cutting blade is detachably mounted on the blade fixing device.

2. The rapid decoking tool for municipal solid waste incinerators according to claim 1, characterized in that, The coking cutting head is a straight shank head or a crank head head. The crank head head includes a connected shank portion and a head portion. The angle between the shank portion and the head portion is 105°. The shank portion is mounted on the head fixing device.

3. The rapid descaling tool for municipal solid waste incinerators according to claim 1, characterized in that, The coking cutting head is made of cemented carbide steel.

4. The rapid descaling tool for municipal solid waste incinerators according to claim 1, characterized in that, It also includes a handle, which is provided at the middle and top of the ultrasonic transducer.

5. The rapid descaling tool for municipal solid waste incinerators according to claim 1, characterized in that, The rated voltage of the power supply circuit is 220V / 380V.

6. The rapid decoking tool for municipal solid waste incinerators according to claim 1, characterized in that, The handheld transducer also includes an amplitude transformer, and the ultrasonic transducer is fixedly connected to the blade fixing device through the amplitude transformer.

7. The rapid decoking tool for municipal solid waste incinerators according to claim 1, characterized in that, It also includes rollers and telescopic rods. The rollers are rotatably located at the bottom of the ultrasonic generator, and the telescopic rods are mounted on the side of the ultrasonic generator.

8. The rapid descaling tool for municipal solid waste incinerators according to claim 1, characterized in that, The ultrasonic generator is equipped with a handle.

9. The rapid decoking tool for municipal solid waste incinerators according to claim 1, characterized in that, The cutting head fixing device is a threaded retainer.

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