Scale eliminating device of reaction kettle

Abstract

A scaling eliminating device of a reaction kettle comprises a supporting frame body, a lifting mechanism, a rotating mechanism, a brush body stretching mechanism, a brush body and a control mechanism, the supporting frame body is erected above the reaction kettle, the lifting mechanism is arranged on the upper portion of the supporting frame body, and the driving end of the lifting mechanism movably penetrates through the supporting frame body downwards; the rotating mechanism is arranged in the supporting frame body with the driving end of the rotating mechanism facing downwards and connected with the driving end of the lifting mechanism, the brush body stretching mechanism is arranged at the driving end of the rotating mechanism, the brush body is arranged on the brush body stretching mechanism, and the control mechanism is arranged on the outer side of the supporting frame body and electrically connected with the lifting mechanism, the rotating mechanism and the brush body stretching mechanism. The control mechanism controls the driving end of the lifting mechanism to drive the rotating mechanism and the brush body stretching mechanism to move downwards and enable the brush body to enter the reaction kettle, so that the brush body is unfolded and attached to the inner circumferential side wall of the reaction kettle to move in the circumferential direction to eliminate scaling. Therefore, the reaction kettle does not need to be improved, and the scale on the inner side wall can be wiped and eliminated instead of manual operation.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of eliminating the scaling of reaction kettle, especially to a scaling elimination device of reaction kettle which uses a brush body to wipe and eliminate the scaling on the circumferential side wall inside the reaction kettle. BACKGROUND

[0002] Reaction kettles are widely used in the fields of petroleum, chemical industry, rubber, pesticide, dye, medicine and food, and are pressure vessels used to complete processes such as vulcanization, nitration, hydrogenation, alkylation, polymerization and condensation. The circumferential side wall inside the reaction kettle often scales after long-term use, affecting the process reaction and the quality of the output. The existing methods for eliminating the scaling of reaction kettles mainly include two types. The first method is to use manual elimination, which involves soaking the scaling with chemical agents and then manually wiping and eliminating the scaling on the circumferential side wall inside the reaction kettle with a cleaning brush. This method has the problems of uneven scaling removal, poor cleaning effect, long operation time and low cleaning efficiency. The second method is to use a cleaning component provided with the reaction kettle. This method involves installing the cleaning component on the stirring shaft inside the reaction kettle or improving the reaction kettle by adding a cleaning component. This method has the problems of high manufacturing or improvement cost of the reaction kettle and the cleaning component affecting the process inside the reaction kettle. Therefore, how to provide a cleaning device that can automatically wipe and eliminate the scaling on the circumferential side wall inside the reaction kettle without manual cleaning and without structural improvement of the reaction kettle has become one of the technical problems to be solved in the field. SUMMARY

[0003] The technical problem to be solved by the present technical solution is how to provide a cleaning device that is independent and is specially used to automatically wipe and eliminate the scaling on the circumferential side wall inside the reaction kettle, so as to eliminate the need for manual operation and structural improvement of the reaction kettle.

[0004] In order to solve the above technical problems, the technical scheme provides a kind of fouling elimination device of reaction kettle, it is used to eliminate the fouling on the inside circumferential side wall of reaction kettle physically, the horizontal section of the internal reaction chamber of reaction kettle is circular, the upper portion of reaction kettle has the mouth with internal reaction chamber, the fouling elimination device includes: support frame body, lifting mechanism, rotating mechanism, brush body extension mechanism, several brush bodies and control mechanism, wherein support frame body is erected on the outside of reaction kettle, lifting mechanism is arranged in the upper portion of support frame body, and the driving end of lifting mechanism is vertically downward and can be movably passed through support frame body, rotating mechanism is arranged in the inside of support frame body with its driving end vertically downward, and rotating mechanism is fixedly connected with the driving end of lifting mechanism, brush body extension mechanism is arranged in the driving end of rotating mechanism, the several brush bodies are arranged on brush body extension mechanism, control mechanism is arranged on the outside of support frame body and is electrically connected with lifting mechanism, rotating mechanism and brush body extension mechanism, is controlled by control mechanism to make the driving end of lifting mechanism drive rotating mechanism and brush body extension mechanism move downward, and make brush body extension mechanism and the several brush bodies enter internal reaction chamber through mouth, then make the several brush bodies spread and adhere to internal circumferential side wall and move in circumference to eliminate fouling.Accordingly, without improving reaction kettle, without manual operation, the fouling on the inside circumferential side wall of reaction kettle can be wiped and eliminated, not only save the reconstruction cost, but also the fouling elimination effect is better, and the cleaning efficiency is higher.

[0005] As another implementation of the technical solution, the support frame body is mainly composed of a first Π-shaped frame, a second Π-shaped frame, a connecting pipe, a bearing disc and a bearing. The first Π-shaped frame is composed of two first vertical rods arranged vertically and a first horizontal rod arranged horizontally. The two ends of the first horizontal rod are fixedly combined with the upper ends of the two first vertical rods. A control mechanism is arranged outside one of the first vertical rods. The second Π-shaped frame is composed of two second vertical rods arranged vertically and a second horizontal rod arranged horizontally. The two ends of the second horizontal rod are fixedly combined with the upper ends of the two second vertical rods. The length of the second vertical rod is smaller than that of the first vertical rod, and the length of the second horizontal rod is also smaller than that of the first horizontal rod. When the first Π-shaped frame and the second Π-shaped frame are superimposed and located in the same plane, the second horizontal rod is located below the first horizontal rod, the two second vertical rods are located inside the opposite sides of the two first vertical rods, and the lower ends of the second vertical rods are flush with the lower ends of the first vertical rods. A sleeving hole penetrating up and down is formed in the middle of the first horizontal rod. A through hole penetrating up and down is formed in the middle of the second horizontal rod in position with the sleeving hole. The connecting pipe is arranged vertically. The bearing disc is fixedly combined with the upper end of the connecting pipe, and a driving hole communicating with the inside of the connecting pipe is formed in the bearing disc. The bearing is sleeved and fixed to the upper part of the connecting pipe with its inner ring. The first horizontal rod is sleeved and fixed to the outer ring of the bearing with its sleeving hole. The lower part of the connecting pipe is exposed to the sleeving hole of the first horizontal rod and is fixedly penetrated into the through hole of the second horizontal rod. The first Π-shaped frame can rotate around the connecting pipe to form an angle of 90 degrees or 0 degrees with the second Π-shaped frame. Accordingly, by rotating the first Π-shaped frame relative to the second Π-shaped frame, the support frame body can be conveniently unfolded and stably arranged outside the reaction kettle, or the first and second Π-shaped frames can be superimposed to facilitate the movement and storage of the scale removal device.

[0006] As another implementation of the technical solution, the lower ends of the two first vertical rods and the lower ends of the two second vertical rods are each provided with a universal wheel with a brake function. Accordingly, the movement, unfolding and superimposing operation of the scale removal device is facilitated.

[0007] As another implementation of the technical solution, the support frame body further comprises a Π-shaped limiting clamp composed of a horizontal clamping portion and two vertical fixing portions. The two ends of the clamping portion are fixedly combined with the upper ends of the two fixing portions. The upper part of the second horizontal rod is recessed downward near the through hole to form a clamping groove perpendicular to the axis of the second horizontal rod. When the second Π-shaped frame forms an angle of 90 degrees with the first Π-shaped frame, the clamping groove is located beside the first horizontal rod and parallel to the first horizontal rod. The Π-shaped limiting clamp is placed in the clamping groove so that the lower half of the clamping portion is located in the clamping groove and the upper half of the clamping portion is attached to the side surface of the first horizontal rod, and the two fixing portions are located on the two sides of the second horizontal rod. Accordingly, after the support frame body is unfolded, the first Π-shaped frame and the second Π-shaped frame can be fixed by placing the Π-shaped limiting clamp in the clamping groove.

[0008] As another implementation of the technical solution, the lifting mechanism is mainly composed of a pressure telescopic cylinder, two guide rails and a support beam. The pressure telescopic cylinder is fixedly arranged on the bearing disc with the telescopic driving rod vertically downward. The telescopic driving rod penetrates the connecting pipe through the driving hole and the lower end of the telescopic driving rod is exposed outside the lower end of the connecting pipe. The two guide rails are vertically arranged on the side walls on the opposite sides of the two second vertical rods. The support beam is horizontally arranged and the middle part of the support beam is fixedly connected with the lower end of the telescopic driving rod. The two ends of the support beam are respectively provided with guide blocks. The two guide blocks are respectively embedded on the two guide rails and can slide up and down. The rotating mechanism is arranged on the lower part of the middle part of the support beam. The telescopic driving rod drives the support beam to vertically move up and down along the guide rails through the driving of the pressure telescopic cylinder.

[0009] As another implementation of the technical solution, the rotating mechanism is mainly composed of a mounting seat, a closed shell, a rotating motor and a rotating bearing. The mounting seat is fixedly arranged on the lower part of the middle part of the support beam. The closed shell is fixedly arranged on the lower part of the mounting seat. The rotating motor is fixedly arranged in the closed shell with the driving end downward. The driving end of the rotating motor penetrates the lower part of the closed shell through the rotating bearing and can rotate circumferentially. The brush body stretching mechanism is arranged on the lower end of the driving end of the rotating motor.

[0010] As another implementation of the technical solution, the brush body stretching mechanism is mainly composed of a closed shell seat, two pressure telescopic rods, two groups of telescopic sleeve rods, a battery and a control unit. The number of brush bodies is two. The closed shell seat has a setting space in the inside. The closed shell seat is fixedly arranged on the lower end of the driving end of the rotating motor. The two pressure telescopic rods are horizontally arranged on the same straight line. The cylinder ends of the two pressure telescopic rods are fixedly arranged on the opposite two side walls of the closed shell seat. Each group of telescopic sleeve rods includes two telescopic sleeve rods. The two telescopic sleeve rods of each group are horizontally arranged and parallel to the pressure telescopic rods. The two telescopic sleeve rods of each group are respectively located above and below the pressure telescopic rod on the same side. One end of the telescopic sleeve rod is fixedly combined with the side wall of the closed shell seat and the other end is fixedly combined with the telescopic end of the pressure telescopic rod on the same side. The battery and the control unit are arranged in the setting space. The control unit is electrically connected with the control mechanism, the battery and the pressure telescopic rod. Accordingly, the arrangement of the telescopic sleeve rod can not only strengthen the structural strength of the brush body stretching mechanism, but also assist the pressure telescopic rod in driving the brush body.

[0011] As another implementation of the technical solution, the brush body stretching mechanism further includes two pressure sensors. Each pressure sensor is arranged on the telescopic end of each pressure telescopic rod and is electrically connected with the control unit. Accordingly, the detection of the pressure of the brush body by the pressure sensor can assist the control mechanism in accurately controlling the unfolded position of the brush body.

[0012] As another implementation of this technical solution, the electrical connection between the control unit and the control mechanism is a wireless data signal connection. This facilitates the transmission of data and commands between the control unit and the control mechanism.

[0013] As another implementation of this technical solution, the control mechanism mainly consists of a panel, a display screen, buttons, a processing unit, a storage unit, and a data transmission unit. The processing unit is electrically connected to the display screen, the storage unit, and the data transmission unit, and the data transmission unit is electrically connected to the lifting mechanism, the rotating mechanism, and the brush extension mechanism. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the scale removal device for a reaction vessel of the present invention in a folded state.

[0015] Figure 2 This is a top view of the scale removal device for a reaction vessel of the present invention in an unfolded state, located above the reaction vessel;

[0016] Figure 3 This is a partial schematic diagram of the application of the Π-shaped limiting card to limit the unfolding of the first and second Π-shaped frames in this utility model.

[0017] Explanation of symbols in the attached diagram:

[0018] 1. Reactor; 11. Outlet; 2. Support frame; 21. First π-shaped frame; 211. First vertical rod; 212. First horizontal rod; 22. Second π-shaped frame; 221. Second vertical rod; 222. Second horizontal rod; 2221. Slot; 23. Connecting pipe; 24. Bearing plate; 25. Bearing; 26. Caster wheel; 27. π-shaped limit clamp; 271. Engaging part; 272. Fixing part; 3. Lifting mechanism; 31. Pressure telescopic cylinder; 32. Guide rail; 33. Support beam; 331. Guide block; 4. Rotating mechanism; 41. Mounting base; 42. Sealed shell; 43. Rotary motor; 44. Rotary bearing; 5. Brush extension mechanism; 51. Sealed shell base; 52. Pressure telescopic rod; 53. Telescopic sleeve rod; 6. Brush body; 7. Control mechanism. Detailed Implementation

[0019] The detailed description and technical content of this utility model are explained below with reference to the accompanying drawings. However, the accompanying drawings are provided for reference and illustration only and are not intended to limit this utility model.

[0020] In the context of this specification, any two or more embodiments of this utility model can be arbitrarily combined, and the resulting technical solutions are part of the original disclosure of this specification and also fall within the protection scope of this utility model.

[0021] like Figure 1 and2 As shown in the figure, it is a schematic diagram of a specific embodiment of the fouling elimination device of the reaction kettle. The fouling elimination device (hereinafter referred to as the fouling elimination device) is used for physically eliminating the fouling adhered to the circumferential side wall (not shown in the figure) of the reaction kettle 1 (not shown in the figure). The horizontal cross section of the internal reaction chamber (not shown in the figure) of the reaction kettle 1 is circular, and the upper part of the reaction kettle 1 has a through port 11 communicating with the internal reaction chamber.

[0022] As shown in the figure, the fouling elimination device of the utility model comprises a support frame 2, a lifting mechanism 3, a rotating mechanism 4, a brush body stretching mechanism 5, a plurality of brush bodies 6 and a control mechanism 7. The support frame 2 is erected outside the reaction kettle 1. The lifting mechanism 3 is arranged on the upper part of the support frame 2, and the driving end of the lifting mechanism 3 is vertically downward and can be movably arranged through the support frame 2. The rotating mechanism 4 is arranged inside the support frame 2 with its driving end vertically downward, and the rotating mechanism 4 is fixedly connected with the driving end of the lifting mechanism 3. The brush body stretching mechanism 5 is arranged on the driving end of the rotating mechanism 4. The plurality of brush bodies 6 are arranged on the brush body stretching mechanism 5. The control mechanism 7 is arranged outside the support frame 2 and is electrically connected with the lifting mechanism 3, the rotating mechanism 4 and the brush body stretching mechanism 5. In the utility model, the electrical connection includes electrical connection and data signal connection. When the fouling elimination device is running, the control mechanism 7 is controlled to drive the driving end of the lifting mechanism 3 to move downward with the rotating mechanism 4 and the brush body stretching mechanism 5, and the brush body stretching mechanism 5 and the plurality of brush bodies 6 enter the internal reaction chamber through the through port 11, so that the plurality of brush bodies 6 are unfolded and attached to the circumferential side wall to move circumferentially and wipe off the fouling.

[0023] Specifically, the support frame 2 mainly consists of a first Π-shaped frame 21, a second Π-shaped frame 22, a connecting pipe 23, a bearing plate 24, and a bearing 25. The first Π-shaped frame 21 is composed of two vertically arranged first vertical rods 211 and a horizontally arranged first horizontal rod 212. The two ends of the first horizontal rod 212 are fixedly connected to the upper ends of the two first vertical rods 211. The control mechanism 7 is located on the outside of one of the first vertical rods 211. The second Π-shaped frame 22 is composed of two vertically arranged second vertical rods 221 and a horizontally arranged second horizontal rod 222. The two ends of the second horizontal rod 222 are fixedly connected to the upper ends of the two second vertical rods 221. The length of the second vertical rod 221 is less than the length of the first vertical rod 211, and the length of the second horizontal rod 222 is also less than the length of the first horizontal rod 212. When the first Π-shaped frame 21 and the second Π-shaped frame 22 overlap and are located on the same plane, the second horizontal rod 222 is located at the top of the first horizontal rod 211. Below 12, the two second vertical rods 221 are located inside the two first vertical rods 211 on opposite sides, and the lower ends of the second vertical rods 221 are flush with the lower ends of the first vertical rods 211. The middle of the first horizontal rod 212 has a through hole (not shown in the figure) that runs vertically through it. The middle of the second horizontal rod 222 has a through hole (not shown in the figure) that runs vertically through it. The connecting pipe 23 is vertically arranged, and the bearing plate 24 is fixedly connected to the upper end of the connecting pipe 23. The connecting pipe 24 has a drive hole (not shown in the figure) communicating with the inside of the connecting pipe 23. The bearing 25 is fixed to the upper part of the connecting pipe 23 with its inner ring. The first crossbar 212 is fixed to the outer ring of the bearing 25 with its sleeve hole. The lower part of the connecting pipe 23 is exposed through the sleeve hole of the first crossbar 212 and passes through the through hole fixed to the second crossbar 222. This allows the first Π-shaped frame 21 to rotate about the connecting pipe 23 as an axis and form an angle of 90 degrees or 0 degrees with the second Π-shaped frame 22. By rotating the first Π-shaped frame 21 relative to the second Π-shaped frame 22, the support frame 2 can be easily unfolded and stably set on the outside of the reactor 1, or the first and second Π-shaped frames 21 and 22 can be folded up to facilitate the movement and storage of the scale removal device. Additionally, casters 26 with braking functions can be installed at the lower ends of the two first vertical rods 211 and the two second vertical rods 221 to facilitate the movement, unfolding, and folding of the scale removal device. Furthermore, to limit and fix the unfolded support frame 2, combined with... Figure 3As shown, the support frame body 2 can further include a Π-shaped limiting clamp 27, which is composed of a horizontal clamping portion 271 and two vertical fixing portions 272, the two end portions of the clamping portion 271 are fixedly combined with the upper end portions of the two fixing portions 272, and the upper portion of the second cross rod 222 is recessed downward near the through hole to form a clamping groove 2221 perpendicular to the axis of the second cross rod 222, when the second Π-shaped frame 22 is at an angle of 90 degrees with the first Π-shaped frame 21, the clamping groove 2221 is located beside the first cross rod 212 and parallel to the first cross rod 212, the Π-shaped limiting clamp 27 is placed in the clamping groove 2221, so that the lower half of the clamping portion 271 is located in the clamping groove 2221 and the upper half of the clamping portion 271 is attached to the side surface of the first cross rod 212, and the two fixing portions 272 are located on the two sides of the second cross rod 222, so that the first Π-shaped frame 21 and the second Π-shaped frame 22 can be limited and fixed.

[0024] In the utility model, the lifting mechanism 3 is mainly composed of a pressure telescopic cylinder body 31, two guide rails 32 and a support beam 33, wherein the pressure telescopic cylinder body 31 is fixedly installed on the bearing disc 24 with the telescopic drive rod vertically downward, and the telescopic drive rod penetrates the connecting pipe 23 through the drive hole, and the lower end portion of the telescopic drive rod is exposed outside the lower end portion of the connecting pipe 23, the pressure telescopic cylinder body 31 can be a hydraulic drive telescopic cylinder or a pneumatic drive telescopic cylinder, the two guide rails 32 are vertically arranged on the side walls on the opposite sides of the two second vertical rods 221, the support beam 33 is horizontally arranged and the middle portion is fixedly connected with the lower end portion of the telescopic drive rod, the two ends of the support beam 33 are respectively provided with guide blocks 331, the two guide blocks 331 are respectively embedded on the two guide rails 32 and can slide up and down, and the rotating mechanism 4 is installed on the lower portion of the middle portion of the support beam 33, so that the telescopic drive rod drives the support beam 33 to vertically move up and down along the guide rails 32 by the driving of the pressure telescopic cylinder body 31.

[0025] In the utility model, the rotating mechanism 4 is mainly composed of a mounting seat 41, a closed shell 42, a rotating motor 43 and a rotating bearing 44, wherein the mounting seat 41 is fixedly arranged on the lower portion of the middle portion of the support beam 33, the closed shell 42 is fixedly installed on the lower portion of the mounting seat 41, the rotating motor 43 is fixedly installed in the inside of the closed shell 42 with the driving end downward, the driving end of the rotating motor 43 penetrates the lower portion of the closed shell 42 and can rotate circumferentially through the rotating bearing 44, and the brush body stretching mechanism 5 is arranged on the lower end portion of the driving end of the rotating motor 43.

[0026] The utility model discloses a brush body stretching mechanism 5 mainly is by airtight shell base 51, two pressure telescopic link 52, two groups telescopic sleeve rod 53, battery (not marked in the drawing) and control unit (not marked in the drawing) constitute, wherein the quantity of brush body 6 is two, the inside of airtight shell base 51 has the setting space, and airtight shell base 51 can prevent cleaning agent etc. and prevent the penetration setting space in such as sealing washer (not marked in the drawing) etc. sealing device, airtight shell base 51 is fixedly arranged in the lower end of the drive end of rotary motor 43, two pressure telescopic link 52 is horizontally arranged and is located on same straight line, and the cylinder body end of two pressure telescopic link 52 is fixedly arranged on the opposite two side walls of airtight shell base 51, and the pressure telescopic link 52 can be hydraulic telescopic link or pneumatic telescopic link, each group telescopic sleeve rod 53 includes two telescopic sleeve rods 53, and the two telescopic sleeve rods 53 of each group are horizontally arranged and are parallel with pressure telescopic link 52, and the two telescopic sleeve rods 53 of each group are located on the upper and lower sides of the pressure telescopic link 52 of same side respectively and one end of telescopic sleeve rod 53 and the side wall of airtight shell base 51 are fixedly combined, and the other end and the telescopic end of pressure telescopic link 52 of same side are fixedly combined with brush body 6, and battery and control unit are arranged in setting space, and control unit and control mechanism 7, battery and pressure telescopic link 52 are electrically connected, and by setting telescopic sleeve rod 53, not only can strengthen the structural strength of brush body stretching mechanism 5, but also can assist the limit driving of pressure telescopic link 52 to brush body 6. In addition, the brush body stretching mechanism 5 can also include two pressure sensors (not shown in the drawing), and each pressure sensor is arranged on the telescopic end of each pressure telescopic link 52 and is electrically connected with the control unit, and by the detection of the pressure sensor to the pressure of brush body 6, the control mechanism can assist the accurate control to the brush body unfolding position, for example, when the pressure sensor senses that the pressure received by the brush body reaches a set value, it indicates that the brush body is unfolded and is in place with the internal circumferential side wall, and by the sensing of the two pressure sensors, the fouling removal device can also be positioned.

[0027] The control mechanism 7 can be constituted by a panel, a display screen, a key, a processing unit, a storage unit and a data transmission unit, wherein the processing unit is electrically connected with the display screen, the storage unit and the data transmission unit, and the data transmission unit is electrically connected with the lifting mechanism, the rotating mechanism and the brush body stretching mechanism.

[0028] In conclusion, the fouling elimination device of the utility model needs not to improve the reaction kettle, and needs not to manually operate by manpower, and can wipe and eliminate the fouling on the circumferential side wall inside the reaction kettle, which not only saves the reconstruction cost, but also has better fouling elimination effect and higher cleaning efficiency.

[0029] The above is only a preferred embodiment of the utility model, and does not limit the patent range of the utility model, and equivalent changes made by using the patent concept of the utility model should belong to the patent protection range of the utility model.

Claims

1. A fouling elimination device for a reaction vessel for physically eliminating fouling on the circumferential side wall of the interior of the reaction vessel, the horizontal cross section of the interior reaction chamber of the reaction vessel being circular, the upper portion of the reaction vessel having an opening communicating with the interior reaction chamber, characterized in that, The fouling removal device comprises a support frame, a lifting mechanism, a rotating mechanism, a brush body extension mechanism, a plurality of brush bodies and a control mechanism, the support frame is arranged outside the reactor, the lifting mechanism is arranged at the upper part of the support frame and the driving end of the lifting mechanism is vertically downward and movably arranged through the support frame, the rotating mechanism is arranged inside the support frame with the driving end vertically downward and the driving end of the rotating mechanism is fixedly connected with the lifting mechanism, the brush body extension mechanism is arranged at the driving end of the rotating mechanism, the plurality of brush bodies are arranged on the brush body extension mechanism, the control mechanism is arranged outside the support frame and is electrically connected with the lifting mechanism, the rotating mechanism and the brush body extension mechanism, the control mechanism is controlled to drive the driving end of the lifting mechanism to move downward, the brush body extension mechanism and the plurality of brush bodies enter the internal reaction chamber through the opening, and then the plurality of brush bodies are unfolded and attached to the internal circumferential side wall to move circumferentially to remove the fouling.

2. The scale elimination device of claim 1, wherein, The support frame mainly comprises a first Π-shaped frame, a second Π-shaped frame, a connecting pipe, a bearing disc and a bearing, the first Π-shaped frame comprises two first vertical rods arranged vertically and a first horizontal rod arranged horizontally, the two ends of the first horizontal rod are fixedly combined with the upper ends of the two first vertical rods, the control mechanism is arranged outside one of the first vertical rods, the second Π-shaped frame comprises two second vertical rods arranged vertically and a second horizontal rod arranged horizontally, the two ends of the second horizontal rod are fixedly combined with the upper ends of the two second vertical rods, the length of the second vertical rod is less than the length of the first vertical rod, the length of the second horizontal rod is also less than the length of the first horizontal rod, when the first Π-shaped frame and the second Π-shaped frame are combined and located in the same plane, the second horizontal rod is located below the first horizontal rod, the two second vertical rods are located inside the opposite sides of the two first vertical rods, and the lower ends of the second vertical rods are flush with the lower ends of the first vertical rods, a sleeving hole penetrating upward and downward is formed in the middle part of the first horizontal rod, a through hole penetrating upward and downward is formed in the middle part of the second horizontal rod in position with the sleeving hole, the connecting pipe is arranged vertically, the bearing disc is fixedly combined with the upper end of the connecting pipe and a driving hole communicating with the inside of the connecting pipe is formed in the bearing disc, the bearing is sleeved and fixed to the upper part of the connecting pipe with its inner ring, the first horizontal rod is sleeved and fixed to the outer ring of the bearing with its sleeving hole, the lower part of the connecting pipe is exposed outside the sleeving hole of the first horizontal rod and is fixedly arranged through the through hole of the second horizontal rod, and the first Π-shaped frame can rotate around the connecting pipe to form an angle of 90 degrees or 0 degrees with the second Π-shaped frame.

3. The scale elimination device of claim 2, wherein, The lower ends of the two first vertical rods and the lower ends of the two second vertical rods are provided with universal wheels with brake function.

4. The scale elimination device of claim 2, wherein, The support frame body further comprises a Π-shaped limiting clamp composed of a horizontal clamping portion and two vertical fixing portions, the two end portions of the clamping portion are fixedly combined with the upper end portions of the two fixing portions, the upper portion of the second horizontal rod is recessed downward near the through hole to form a clamping groove perpendicular to the axis of the second horizontal rod, when the second Π-shaped frame is at an angle of 90 degrees with the first Π-shaped frame, the clamping groove is located beside the first horizontal rod and parallel to the first horizontal rod, the Π-shaped limiting clamp is placed in the clamping groove, so that the lower half of the clamping portion is located in the clamping groove and the upper half of the clamping portion is attached to the side surface of the first horizontal rod, and the two fixing portions are located on the two sides of the second horizontal rod respectively.

5. The scale elimination device of claim 2, wherein, The lifting mechanism is mainly composed of a pressure telescopic cylinder, two guide rails and a support beam, the pressure telescopic cylinder is fixedly installed on the bearing disc with its telescopic drive rod vertically downward, the telescopic drive rod penetrates through the connecting pipe through the drive hole and the lower end portion of the telescopic drive rod is exposed outside the lower end portion of the connecting pipe, the two guide rails are vertically arranged on the side walls on the opposite sides of the two second vertical rods, the support beam is horizontally arranged and the middle portion thereof is fixedly connected with the lower end portion of the telescopic drive rod, the two ends of the support beam are respectively provided with guide blocks, the two guide blocks are respectively embedded on the two guide rails and can slide up and down, the rotating mechanism is installed on the lower portion of the middle portion of the support beam and is driven by the pressure telescopic cylinder to make the telescopic drive rod drive the support beam to vertically move up and down along the guide rails.

6. The scale elimination device of claim 5, wherein, The rotating mechanism is mainly composed of a mounting seat, a closed housing, a rotating motor and a rotating bearing, the mounting seat is fixedly arranged on the lower portion of the middle portion of the support beam, the closed housing is fixedly installed on the lower portion of the mounting seat, the rotating motor is fixedly installed inside the closed housing with its driving end downward, the driving end of the rotating motor can rotate circumferentially and penetrates through the lower portion of the closed housing through the rotating bearing, and the brush body stretching mechanism is arranged on the lower end portion of the driving end of the rotating motor.

7. The scale elimination device of claim 6, wherein, The brush body stretching mechanism is mainly composed of a closed shell, two pressure telescopic rods, two sets of telescopic sleeve rods, a battery and a control unit, the number of the brush bodies is two, the closed shell has a setting space inside, the closed shell is fixedly arranged at the lower end of the driving end of the rotary motor, the two pressure telescopic rods are arranged horizontally and are located on the same straight line, and the cylinder bodies of the two pressure telescopic rods are respectively fixedly arranged on the opposite two side walls of the closed shell, each set of the telescopic sleeve rods comprises two telescopic sleeve rods, the two telescopic sleeve rods of each set are arranged horizontally and are parallel to the pressure telescopic rods, and the two telescopic sleeve rods of each set are respectively located above and below the pressure telescopic rod on the same side, one end of the telescopic sleeve rod is fixedly combined with the side wall of the closed shell, and the other end is fixedly combined with the telescopic end of the pressure telescopic rod on the same side, the battery and the control unit are arranged in the setting space, and the control unit is electrically connected with the control mechanism, the battery and the pressure telescopic rod.

8. The scale elimination device of claim 7, wherein, The brush body stretching mechanism further comprises two pressure sensors, each pressure sensor is arranged at the telescopic end of each pressure telescopic rod and is electrically connected with the control unit.

9. The scale elimination device of claim 7, wherein, The electrical connection between the control unit and the control mechanism is wireless data signal connection.

10. The scale elimination device of claim 1, wherein, The control mechanism is mainly composed of a panel, a display screen, a key, a processing unit, a storage unit and a data transmission unit, the processing unit is electrically connected with the display screen, the storage unit and the data transmission unit, and the data transmission unit is electrically connected with the lifting mechanism, the rotating mechanism and the brush body stretching mechanism.

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