Rapping ash removal device

Abstract

The utility model discloses a rapping ash removal device which comprises a rapping rod mechanism, a rapping transmission mechanism and a rapping hammer head, the rapping rod mechanism comprises a coiled pipe piece, a rapping rod and a stop block, a rapping rod clamping plate is arranged on the coiled pipe piece, the stop block is fixed to the bottom of the rapping rod clamping plate, and the rapping rod penetrates through the stop block and extends to the rapping transmission mechanism; the rapping transmission mechanism comprises an impact part, a sealing cover and a transmission shaft slidably arranged in the sealing cover, the transmission shaft and the rapping rod are coaxially arranged, and the impact part is arranged at the end, away from the rapping rod, of the transmission shaft; the rapping hammer head is driven by a motor to swing and impact the impact part, drives the transmission shaft to impact the rapping rod, and drives the coiled pipe piece to vibrate to achieve dust removal. According to the utility model, through the cooperative work of the rapping rod mechanism and the rapping transmission mechanism, the impact force and the vibration force of the rapping hammer head are effectively transmitted to the coiled pipe sheet, so that accumulated dust and sediments attached to the surface of equipment can quickly fall off.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of boiler, concretely relates to a rapping ash removal device. BACKGROUND

[0002] At present, in the field of kiln tail waste heat utilization of cement plant, the conventional ash removal mode of the industry is to use a mechanical rapping ash removal device, and the working principle thereof is to drive a long shaft to rotate at low speed through a speed reducer and a chain transmission, a plurality of rapping hammer heads are hung on the rotating shaft according to equal division, and the inside rapping rod connected to the heat receiving surface of the boiler is sequentially hammered from front to back, so that the heat receiving surface is strongly vibrated in an instant, the adhered ash is subjected to repeated stress and generates tiny cracks, and the adhesion of the ash is damaged and falls off.

[0003] The on-site installation precision and welding quality of the mechanical rapping device affect the use effect and product life of the rapping, and in the previous projects, problems such as large on-site installation error, uneven stress of the rapping rod, and poor on-site welding seam formation of the rapping rod and the clamping plate exist, and in the long-term use process, the rapping rod and the heat receiving surface are prone to mechanical fatigue, and the rapping rod and the heat receiving surface are damaged.

[0004] With the implementation of the clean and environmental protection demonstration project of the cement plant, the noise of the mechanical rapping ash removal device under the original technology is large during the operation process, the noise is greater than 80 decibels, especially in the projects lacking in daily maintenance, the noise of the rapping device is larger during operation, and when the rapping hammer head knocks the rapping shaft, a continuous noise of metal knocking is emitted, which is sharp and irritating, and is easy to cause discomfort to the nearby maintenance personnel, and causes noise pollution to the factory area.

[0005] Therefore, there is an urgent need for an improved rapping ash removal device in the prior art, which can ensure safe and reliable operation under the premise of continuous mechanical rapping ash removal effect of the waste heat boiler, and effectively reduce noise and relieve noise pollution. UTILITY MODEL CONTENTS

[0006] In order to solve the above problems, the utility model provides a rapping ash removal device.

[0007] The technical scheme provided by the utility model is as follows:

[0008] A rapping ash removal device, comprising a rapping rod mechanism, a rapping transmission mechanism and a rapping hammer head;

[0009] The rapping rod mechanism comprises a serpentine pipe piece, a rapping rod and a stop block, the rapping rod clamping plate is arranged on the serpentine pipe piece, the stop block is fixed at the bottom of the rapping rod clamping plate, and the rapping rod extends to the rapping transmission mechanism through the stop block;

[0010] The rapping transmission mechanism comprises a striking part, a sealing cover and a transmission shaft slidingly arranged in the sealing cover, the transmission shaft is coaxially arranged with the rapping rod, and the striking part is arranged at one end of the transmission shaft away from the rapping rod.

[0011] The rapping hammer head is driven to swing and strike the striking part by the motor, drives the transmission shaft to strike the rapping rod, and drives the snake tube sheet to vibrate to realize dust removal.

[0012] In some embodiments, the intermediate clamping plate sleeve is sleeved on the snake tube sheet, the first limiting sleeve and the second limiting sleeve are fixedly sleeved on both sides of the intermediate clamping plate sleeve, and the rapping rod clamping plate is fixed on the intermediate clamping plate sleeve.

[0013] In some embodiments, a gap of 0.5mm to 0.8mm is arranged between the intermediate clamping plate sleeve and the snake tube sheet.

[0014] In some embodiments, a gap of 1mm to 2mm is left between the intermediate clamping plate sleeve and the first limiting sleeve and the second limiting sleeve.

[0015] In some embodiments, the striking part comprises a sleeve, a sleeve clamp and a noise reduction rod, the sleeve is sleeved on the transmission shaft, the sleeve is detachably fixed on the transmission shaft through a fastening adjusting device, and the noise reduction rod is arranged on one side of the sleeve away from the transmission shaft through the sleeve clamp.

[0016] In some embodiments, the noise reduction rod is made of polytetrafluoroethylene material.

[0017] In some embodiments, the sealing cover is used for positioning the transmission shaft, the sealing cover and the transmission shaft are connected through high-temperature-resistant silicone rubber, and are sealed by using oil-immersed cotton hemp sealing packing.

[0018] In some embodiments, the rapping hammer head is an integrated hammer head made of a forging material and having a hardness of 230 to 300HB.

[0019] In summary, the beneficial effects of the utility model are as follows:

[0020] (1) The utility model cooperates the rapping rod mechanism and the rapping transmission mechanism, effectively transmits the striking force and the vibration force of the rapping hammer head to the snake tube sheet, so that the dust and deposits adhered to the surface of the equipment can be quickly removed.

[0021] (2) The reasonable gap design between the intermediate clamping sleeve, the first limiting sleeve and the second limiting sleeve in the utility model can ensure the vibration effect, buffer the impact of the intermediate clamping sleeve, and prevent the vibration force from directly acting on the welding points on both sides of the first limiting sleeve and the second limiting sleeve. In addition, the use of the noise reduction rod can effectively reduce the noise generated in the impact process, reduce the noise pollution during equipment operation, and improve the comfort of the working environment. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of the utility model;

[0023] Figure 2 It is a top view structural schematic diagram of the snake-shaped pipe piece of the utility model;

[0024] Figure 3 It is a top view structural schematic diagram of the utility model;

[0025] Figure 4 It is Figure 3 It is a sectional view of A-A angle;

[0026] Figure 5 It is a structural schematic diagram of the utility model;

[0027] The reference signs are as follows:

[0028] 1, vibration rod mechanism; 2, vibration transmission mechanism; 3, impact part; 11, snake-shaped pipe piece; 12, vibration rod; 13, stop block; 14, left limiting sleeve; 15, intermediate clamping sleeve; 16, right limiting sleeve; 17, vibration rod clamping plate; 21, vibration hammer head; 22, transmission shaft; 23, sealing cover; 24, high-temperature-resistant silicone rubber; 25, oil-impregnated cotton and hemp sealing packing; 31, sleeve; 32, sleeve hoop; 33, noise reduction rod; 34, fastening adjusting device. DETAILED DESCRIPTION

[0029] In order to deepen the understanding of the utility model, the utility model will be further described in combination with examples and drawings below, and the examples are only used to explain the utility model and do not constitute a limitation on the protection scope of the utility model.

[0030] As Figures 1-5 shown, the utility model provides a vibration and impact cleaning device, which is mainly used for dust and deposits in boilers, heat exchangers and other equipment. Through the combination of vibration and impact, the device can effectively remove the dust attached to the inner surface of the equipment, and improve the working efficiency and reliability of the equipment. The device comprises a vibration rod mechanism, a vibration transmission mechanism and a vibration hammer head.

[0031] The rapping rod mechanism 1 comprises a plurality of components such as the serpentine tube sheet 11, the rapping rod 12 and the stopper 13. The serpentine tube sheet 11 has a corrugated shape and can produce flexibility and vibration effects. When the rapping rod 12 vibrates, the serpentine tube sheet 11 also vibrates and in turn impacts the dust on the surface of the tube sheet.

[0032] The rapping rod 12 is made of a steel tube, one end of which is connected to the serpentine tube sheet 11 through the stopper 13, and the other end is connected to the rapping transmission mechanism 2. The stopper 13 is fixed on the rapping rod clamp plate 17 in such a way that the rapping rod 12 can be fixedly connected to the serpentine tube sheet 11 and will not deviate or displace excessively during operation, ensuring the stability and accuracy of vibration.

[0033] In a preferred embodiment, the intermediate clamp sleeve 15 is located in the center of the serpentine tube sheet 11 and is fixed by the first limiting sleeve 14 and the second limiting sleeve 16 on both sides. The first limiting sleeve 14 and the second limiting sleeve 16 are fixed on the serpentine tube sheet 11 by welding on the outside. The purpose of the intermediate clamp sleeve is to avoid direct welding of the rapping rod clamp plate 17 on the serpentine tube sheet 11.

[0034] The design between the intermediate clamp sleeve 15 and the serpentine tube sheet 11 has a certain gap, and the size of the gap is 0.5mm to 0.8mm. The intermediate clamp sleeve 15 is a precision tube, and the gap is set to ensure that the intermediate clamp sleeve 15 can be sleeved on the serpentine tube sheet 11 while forming a tight sleeve.

[0035] On this basis, the embodiment requires that the intermediate clamp sleeve 15 also has a gap of 1mm to 2mm between the first limiting sleeve 14 and the second limiting sleeve 16. The purpose of this gap is to ensure that the intermediate clamp sleeve 15 can maintain a certain buffer space during vibration. In this way, while ensuring the rapping effect, the impact of the intermediate clamp sleeve 15 is buffered, preventing the rapping force from acting directly on the welding points on both sides of the first limiting sleeve 14 and the second limiting sleeve 16.

[0036] The main function of the rapping transmission mechanism 2 is to transfer the kinetic energy of the rapping hammer head 21 to the rapping rod 12. The mechanism includes a striking part 3, a sealing cover 23, and a transmission shaft 22. The striking part 3 is composed of a sleeve 31, a sleeve clamp 32, and a noise reduction rod 33. The striking part 3 includes the sleeve 31, the sleeve clamp 32, and the noise reduction rod 33. The sleeve 31 is sleeved on the transmission shaft 22, and the sleeve 31 is detachably fixed on the transmission shaft 22 through a fastening adjustment device 34. The noise reduction rod 33 is arranged on the side of the sleeve 31 away from the transmission shaft 22 through the sleeve clamp 32. The fastening adjustment device 34 generally uses bolts to fix the transmission shaft 22 and the sleeve 31. The sleeve clamp 32 is assembled outside the sleeve 31, which can increase the rigidity of this area and prolong the service life of the equipment. In actual production, the tolerance between the inner diameter of the sleeve 31 and the outer diameter of the transmission shaft 22 is controlled at 0.5±0.01. The transmission shaft 22 is coaxially arranged with the rapping rod 12, and the power from the rapping hammer head 21 is transmitted through the striking part 3.

[0037] The material of the noise reduction rod 33 is polytetrafluoroethylene (Teflon), which not only has good wear resistance, but also can effectively reduce the noise generated during the impact process, and improve the comfort of the working environment. The sealing cover 23 ensures the stability of the transmission shaft 22, and is connected with the transmission shaft 22 through high-temperature-resistant silicone rubber 24, and is sealed with oil-impregnated cotton and hemp filler 25 to prevent leakage and wear in high-temperature environments.

[0038] The rapping hammer head 21 is driven by a motor and can swing and impact the striking part 3. The material of the rapping hammer head 21 is high-strength forged piece with a hardness of 230-300 HB, which has high hardness and durability and can withstand large impact force. The swinging and impact of the rapping hammer head 21 on the striking part 3 transmits energy to the rapping rod 12 through the transmission shaft 22, so that the rapping rod 12 generates longitudinal vibration, and then drives the vibration of the serpentine tube sheet 11. The corrugated shape of the serpentine tube sheet 11 makes the vibration effect more significant, and the accumulated dust can be removed in a short time.

[0039] The device drives the vibration of the rapping rod 12 through the repeated swinging and impact of the rapping hammer head 21, and then excites the vibration of the serpentine tube sheet 11, so that the dust attached to its surface is effectively removed. The rapping device of the device effectively removes the accumulated dust through regular cleaning operation, and maintains the efficient and stable operation of the equipment.

[0040] In addition to the basic working principle and structure, the rapping device can also be adjusted and optimized according to specific conditions during use. For example, the material of the rapping rod 12 can be selected according to the special needs of the working environment, such as high-wear-resistant and high-temperature-resistant alloy steel or carbon steel. The design of the sealing cover 23 can also be improved according to the actual situation, especially in high-temperature working environment, which can further improve the sealing effect and prolong the service life of the equipment.

[0041] It should be noted that the implementation not shown or described in the drawings or the specification is the form known by those skilled in the art, and is not described in detail. In addition, the above definition of each element and method is not limited to the various specific structures, shapes or ways mentioned in the embodiments.

[0042] It should also be noted that the present text can provide an example of a parameter containing a specific value, but these parameters do not necessarily equal the corresponding value, but can be approximately equal to the corresponding value within an acceptable error tolerance or design constraint. The direction of the language mentioned in the embodiments, such as "up", "down", "front", "back", "left", "right", "inside", "outside" and the like, is only the direction of the drawings, and is not intended to limit the scope of the application.

[0043] The above description shows and describes the preferred embodiments of the present application. As mentioned before, it should be understood that the present application is not limited to the form disclosed herein, and should not be considered as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application conceived herein by the above teachings or related art or knowledge. Any modification and change made by those skilled in the art without departing from the spirit and scope of the present application shall be within the scope of the claims of the present application.

Claims

1. A rapping device, characterized in that The utility model relates to a rapping mechanism, which comprises a rapping rod mechanism (1), a rapping transmission mechanism (2) and a rapping hammer head (21). The rapping rod mechanism (1) comprises a serpentine pipe piece (11), a rapping rod (12) and a stop block (13), the serpentine pipe piece (11) is provided with a rapping rod clamping plate (17), the stop block (13) is fixed at the bottom of the rapping rod clamping plate (17), and the rapping rod (12) extends through the stop block (13) to the rapping transmission mechanism (2). The rapping transmission mechanism (2) comprises a striking part (3), a sealing cover (23) and a transmission shaft (22) slidingly arranged in the sealing cover (23), the transmission shaft (22) is coaxially arranged with the rapping rod (12), and the striking part (3) is arranged at one end of the transmission shaft (22) away from the rapping rod (12). The rapping hammer head (21) is driven by a motor to swing and strike the striking part (3), drive the transmission shaft (22) to strike the rapping rod (12), and drive the serpentine pipe piece (11) to vibrate to realize dust removal.

2. The rapping and dust cleaning device according to claim 1, characterized in that: The serpentine pipe piece (11) is sleeved with an intermediate clamping plate sleeve (15), the first limiting sleeve (14) and the second limiting sleeve (16) are fixedly sleeved on the two sides of the intermediate clamping plate sleeve (15), and the rapping rod clamping plate (17) is fixed on the intermediate clamping plate sleeve (15).

3. The rapping device according to claim 2, characterized in that A gap of 0.5mm-0.8mm is arranged between the intermediate clamping plate sleeve (15) and the serpentine pipe piece (11).

4. The rapping device of claim 2, wherein A gap of 1mm-2mm is left between the intermediate clamping plate sleeve (15) and the first limiting sleeve (14) and the second limiting sleeve (16).

5. The rapping device of claim 1, wherein The striking part (3) comprises a sleeve (31), a sleeve clamp (32) and a noise reduction rod (33), the sleeve (31) is sleeved on the transmission shaft (22), the sleeve (31) is detachably fixed on the transmission shaft (22) through a fastening adjusting device (34), and the noise reduction rod (33) is arranged on one side of the sleeve (31) away from the transmission shaft (22) through the sleeve clamp (32).

6. The rapping device of claim 5, wherein The noise reduction rod (33) is made of polytetrafluoroethylene material.

7. The rapping device of claim 1, wherein The sealing cover (23) is used for positioning the transmission shaft (22), the sealing cover (23) and the transmission shaft (22) are connected through high-temperature-resistant silicone rubber (24), and oil-impregnated cotton and hemp sealing packing (25) is used for sealing.

8. The rapping device of claim 1, wherein, The rapping hammer head (21) is an integrated hammer head made of forged material and has a hardness of 230-300HB.

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