Maintenance platform for rotary kiln

Abstract

The utility model discloses a maintenance platform for a rotary kiln, which belongs to the technical field of rotary kilns and comprises a base, brake casters and a shear type lifting frame, the brake casters are fittingly arranged at the bottom of the base, the shear type lifting frame is mounted above the base, and a fixed platform is mounted at the top of the base through the shear type lifting frame. A sealing surface is mounted on the outer side of the shear type lifting frame below the fixed platform, and the other end of the sealing surface is connected with the base through a locking bolt. The protective plate is adjusted through the servo motor, so that the protective plate moves in the sliding rail, when the protective plate is matched with the radian of the kiln body, the movable platform is pushed through the electric telescopic rod to conduct fine adjustment on the fixed platform till the protective plate is attached to the kiln body, at the moment, the electromagnet is powered on, the electromagnet generates magnetic attraction force, and the protective plate is driven to move. The guide rail is attracted with a steel skin on the surface of the kiln body to achieve the fixing purpose, meanwhile, the gap between the guide rail and the kiln body is filled, and safety is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of rotary kilns, in particular to a maintenance platform for rotary kilns. Background Art

[0002] When red mud is treated by dry environmental protection, the red mud, coal powder and limestone need to be processed and mixed before undergoing a high-temperature reduction reaction. The container for this reaction is a rotary kiln. Today's rotary kilns generally use natural gas as a heat source, which is more environmentally friendly than previous rotary kilns that used coal as a heat source.

[0003] The working principle of the rotary kiln is to obtain the desired product by rotating and calcining the material to undergo physical and chemical reactions at high temperatures. Specifically, the dry rotary kiln uses a rotary kiln, cooler, combustion system, and a fan and smoke tube that drive the gas flow to make the raw material powder undergo a series of physical and chemical reactions in the rotary kiln to achieve the desired purpose. The interior of the rotary kiln is made of fireproof bricks and the outer surface is made of steel. It is erected at high altitude. The length is determined according to demand and is generally more than 30 meters. When a problem occurs in the rotary kiln, it needs to be repaired, generally requiring a working elevated platform.

[0004] Among them, a search found that there is an application number CN202121226276.3 for a high-altitude construction lifting platform, which drives a lead screw through a motor to move a lead block and a movable plate at the same time, so that the high-altitude construction lifting platform can be raised a certain distance from its original height, thereby increasing the original high-altitude construction range and avoiding the need to replace the high-altitude construction lifting platform due to insufficient height; among them, the shortcomings are as follows:

[0005] Existing maintenance platforms generally use scissor-type lifting frames to drive the platform to rise and fall. When applied to rotary kilns, there are certain disadvantages. Since the cross-section of the kiln body is circular, and the working platform is generally square, this leads to insufficient fit between the platform and the kiln body. Whether working above or below the kiln body, there will be a gap between the platform and the kiln body. Safety needs to be improved. At the same time, tools and materials will inevitably be missed during the operation. It is necessary to add equipment that can lift light tools to the platform to facilitate work and reduce the danger of manual lifting. Utility Model Content

[0006] The purpose of the utility model is to provide a maintenance platform for a rotary kiln in order to solve the above problems.

[0007] The technical solution adopted by the utility model is as follows: a maintenance platform for a rotary kiln, comprising a base, brake casters, and a scissor-type lifting frame, wherein the bottom of the base is equipped with a brake caster, the scissor-type lifting frame is installed above the base, and a fixed platform is installed on the top of the base through the scissor-type lifting frame;

[0008] A sealing surface is installed below the fixed platform and outside the scissor lift frame, and the other end of the sealing surface is connected to the base through a locking bolt;

[0009] A slide is embedded in the fixed platform, and the slide is connected to the mobile platform through a slider. A fixed seat is installed in the middle of the upper part of the fixed platform, and an electric telescopic rod is installed through the fixed seat. The other side of the electric telescopic rod is connected to the mobile platform. An electric turntable is installed on one side of the top of the mobile platform through a column, and a winch is installed above the mobile disk of the electric turntable through a bracket.

[0010] A protective assembly is provided on the top of the mobile platform, which includes a compensation plate, guardrail, lifting guardrail, right-angle transmission, handwheel, screw rod, slide rail, guard plate, and electromagnet;

[0011] A guardrail is installed on the top of the mobile platform, one side of the guardrail is open, and a compensation plate is slidably connected to the side of the mobile platform on the open side. A lifting guardrail is slidably connected inside the guardrail, and a right-angle transmission is installed at the bottom of the guardrail. The output shaft and input shaft of the right-angle transmission are respectively connected to a screw rod and a handwheel, and the slider in the lifting guardrail is threadedly engaged with the screw rod;

[0012] Both ends of the mobile platform located on the opening side of the guardrail are fixedly installed with slide rails, and a guard plate is slidably connected inside the slide rail. An electromagnet is embedded in the surface of the guard plate. The guard plate and the slide rail are both arc-shaped. The guard plate has an array of teeth on the side close to the slide rail. A servo motor is installed on the side of the slide rail, and a gear is installed on the output shaft of the servo motor, which engages with the teeth on the guard plate.

[0013] Among them, a slide groove is also provided inside the mobile platform, which is distributed in a triangular shape with the slide groove in the fixed platform, and the slider inside the slide groove is connected to the fixed seat.

[0014] Among them, the movable platform is provided with bolt holes on one side close to the compensation plate, and the surface of the compensation plate also has corresponding holes, which are connected by pins.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0016] 1. In the utility model, the servo motor is used to adjust the guard plate so that the guard plate moves inside the slide rail. When the guard plate fits the curvature of the kiln body, the electric telescopic rod is used to push the mobile platform on the fixed platform for fine adjustment until the guard plate fits the kiln body. At this time, the electromagnet is energized to generate magnetic attraction, which attracts the steel skin on the surface of the kiln body to achieve the purpose of fixation. At the same time, it fills the gap between the guardrail and the kiln body and improves safety.

[0017] 2. In the present invention, in order to compensate for the distance between the kiln body and the mobile platform, the compensation plate can be pulled out from the mobile platform and locked with a latch to prevent the staff from stepping on empty space.

[0018] 3. In the present invention, the winch can be driven to rotate horizontally by controlling the electric turntable. At this time, the winch can lift the tools on the ground, and then cooperate with the electric turntable to move the tools into the guardrail, thereby achieving the purpose of time saving and convenience. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the overall side structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the working state structure of the utility model;

[0021] Figure 3 For this utility model Figure 1 A in the middle is an enlarged schematic diagram of the structure;

[0022] Figure 4 This is a schematic diagram of a partial three-dimensional structure of the present utility model;

[0023] Figure 5 It is a schematic diagram of the local three-dimensional structure of the utility model.

[0024] Markings in the figure: 1. Base; 101. Brake caster; 2. Scissor lift; 3. Sealing surface; 301. Locking bolt; 4. Fixed platform; 401. Slide; 402. Electric telescopic rod; 5. Mobile platform; 501. Electric turntable; 502. Winch; 503. Compensation plate; 6. Guardrail; 601. Lifting guardrail; 602. Right-angle actuator; 6021. Handwheel; 603. Screw; 7. Slide rail; 701. Guard plate; 702. Electromagnet. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] In this utility model:

[0027] Reference Figure 1-5A maintenance platform for a rotary kiln includes a base 1, a brake caster 101, and a scissor lift 2. The base 1 is provided with a brake caster 101 at the bottom, the scissor lift 2 is installed above the base 1, and a fixed platform 4 is installed on the top of the base 1 through the scissor lift 2.

[0028] A sealing surface 3 is installed on the outside of the scissor lift 2 below the fixed platform 4. The other end of the sealing surface 3 is connected to the base 1 via a locking bolt 301. The sealing surface 3 has an accordion-shaped folding design. On the one hand, it can protect the scissor lift 2, and on the other hand, it can shield external objects to improve safety.

[0029] A slide 401 is embedded in the fixed platform 4, and the slide 401 is connected to the mobile platform 5 through a slider. A fixed seat is installed in the middle of the upper part of the fixed platform 4, and an electric telescopic rod 402 is installed through the fixed seat. The other side of the electric telescopic rod 402 is connected to the mobile platform 5. An electric turntable 501 is installed on one side of the top of the mobile platform 5 through a column. A winch 502 is installed above the mobile disk of the electric turntable 501 through a bracket. The electric turntable 501 can be controlled to drive the winch 502 to rotate horizontally. At this time, the winch 502 can lift the tools on the ground, and then cooperate with the electric turntable 501 to move the tools into the guardrail 6, so as to achieve the purpose of time saving and convenience.

[0030] A protective assembly is provided on the top of the mobile platform 5, which includes a compensation plate 503, a guardrail 6, a lifting guardrail 601, a right-angle actuator 602, a handwheel 6021, a screw 603, a slide rail 7, a guard plate 701, and an electromagnet 702;

[0031] A guardrail 6 is installed on the top of the mobile platform 5. One side of the guardrail 6 is open, and a compensation plate 503 is slidably connected to the side of the mobile platform 5 on the open side. A lifting guardrail 601 is slidably connected inside the guardrail 6. A right-angle transmission 602 is installed at the bottom of the guardrail 6. The output shaft and input shaft of the right-angle transmission 602 are respectively connected to a screw rod 603 and a handwheel 6021. The slider in the lifting guardrail 601 is threadedly engaged with the screw rod 603. When a staff member enters the guardrail 6 and rotates the handwheel 6021, the gear inside the right-angle transmission 602 is engaged, thereby rotating the screw rod 603. Since the screw rod 603 is threadedly engaged with the slider in the lifting guardrail 601, the lifting guardrail 601 can be raised, thereby increasing the height of the entire guardrail to achieve the purpose of protection.

[0032] Both ends of the mobile platform 5 located on the open side of the guardrail 6 are fixedly installed with slide rails 7, and a guard plate 701 is slidably connected inside the slide rail 7. An electromagnet 702 is embedded in the surface of the guard plate 701. The guard plate 701 and the slide rail 7 are both arc-shaped. The guard plate 701 has an array of teeth on the side close to the slide rail 7. A servo motor is installed on the side of the slide rail 7, and a gear is installed on the output shaft of the servo motor, which engages with the teeth on the guard plate 701. The guard plate 701 is adjusted by the servo motor to move inside the slide rail 7. When the guard plate 701 fits the curvature of the kiln body, the electromagnet 702 is energized, and the electromagnet 702 generates magnetic attraction, which attracts the steel skin on the surface of the kiln body to achieve the purpose of fixation. At the same time, it fills the gap between the guardrail 6 and the kiln body, thereby improving safety.

[0033] Furthermore, a slide groove 401 is also provided inside the mobile platform 5, which is distributed in a triangular shape with the slide groove 401 in the fixed platform 4, and the slider inside the slide groove 401 is connected to the fixed seat. This design allows the mobile platform 5 to slide parallel to the fixed platform 4 under the telescopic action of the electric telescopic rod 402, making it convenient to fine-tune the distance between the guard plate 701 and the kiln body.

[0034] Furthermore, bolt holes are reserved on the side of the mobile platform 5 close to the compensation plate 503, and corresponding holes are also provided on the surface of the compensation plate 503, which are connected by a latch. In order to compensate for the distance between the kiln body and the mobile platform 5, the compensation plate 503 can be pulled out from the mobile platform 5 and locked with a latch to prevent staff from stepping on air and improve the safety of the platform.

[0035] Furthermore, a hydraulic rod matching the scissor lift 2 is installed inside the base 1, and the hydraulic rod is connected to an external pump station, and the electric telescopic rod 402, electric turntable 501, winch 502, electromagnet 702 are connected to an external power supply through a control panel.

[0036] Working principle: First, the staff enters the guardrail 6, and rotates the handwheel 6021 to make the gear inside the right-angle transmission 602 engage, thereby rotating the screw rod 603. Since the screw rod 603 is engaged with the slider thread in the lifting guardrail 601, the lifting guardrail 601 can be raised, thereby increasing the height of the entire guardrail to achieve the purpose of protection. At this time, the scissor lift 2 is controlled to rise, thereby raising the fixed platform 4. At this time, the mobile platform 5 moves to the kiln body that needs to be repaired, and the guard plate 701 is adjusted by the servo motor so that the guard plate 701 moves inside the slide rail 7. When the guard plate 701 fits the curvature of the kiln body, the electric telescopic rod 402 pushes the mobile platform 5 in Fine-tuning is performed on the fixed platform 4 until the guard plate 701 fits with the kiln body. At this time, the electromagnet 702 is energized, and the electromagnet 702 generates magnetic attraction, which attracts the steel skin on the surface of the kiln body to achieve the purpose of fixation. At the same time, it fills the gap between the guardrail 6 and the kiln body to improve safety. In order to compensate for the distance between the kiln body and the mobile platform 5, the compensation plate 503 can be pulled out from the mobile platform 5 and locked with a pin to prevent the staff from stepping on air. Finally, by controlling the electric turntable 501, the winch 502 can be driven to rotate horizontally. At this time, the winch 502 can lift the tools on the ground, and then cooperate with the electric turntable 501 to move the tools into the guardrail 6, thereby achieving the purpose of saving time and convenience.

[0037] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A maintenance platform for a rotary kiln, comprising a base (1), a brake caster (101), and a scissor lift (2), wherein the base (1) is provided with a brake caster (101) at the bottom, and the scissor lift (2) is installed above the base (1), characterized in that: A fixed platform (4) is installed on the top of the base (1) via a scissor-type lifting frame (2); A sealing surface (3) is installed below the fixed platform (4) and outside the scissor lift (2), and the other end of the sealing surface (3) is connected to the base (1) via a locking bolt (301); A slide groove (401) is embedded in the fixed platform (4), and the slide groove (401) is connected to the mobile platform (5) through a slider. A fixed seat is installed in the middle of the upper part of the fixed platform (4), and an electric telescopic rod (402) is installed through the fixed seat. The other side of the electric telescopic rod (402) is connected to the mobile platform (5). An electric turntable (501) is installed on one side of the top of the mobile platform (5) through a column. A winch (502) is installed above the mobile disk of the electric turntable (501) through a bracket. A protective assembly is provided on the top of the mobile platform (5), and the protective assembly includes a compensation plate (503), a guardrail (6), a lifting guardrail (601), a right-angle transmission (602), a handwheel (6021), a screw rod (603), a slide rail (7), a guard plate (701), and an electromagnet (702); A guardrail (6) is installed on the top of the mobile platform (5), one side of the guardrail (6) is open, and a compensation plate (503) is slidably connected to the side of the mobile platform (5) on the open side, a lifting guardrail (601) is slidably connected inside the guardrail (6), and a right-angle transmission (602) is installed at the bottom of the guardrail (6), and the output shaft and input shaft of the right-angle transmission (602) are respectively connected to a screw rod (603) and a hand wheel (6021); Slide rails (7) are fixedly installed at both ends of the mobile platform (5) located on the opening side of the guardrail (6), and a guard plate (701) is slidably connected inside the slide rail (7), and an electromagnet (702) is embedded in the surface of the guard plate (701).

2. The maintenance platform for a rotary kiln according to claim 1, characterized in that: The guard plate (701) and the slide rail (7) are both arranged in an arc shape. A tooth array is provided on one side of the guard plate (701) close to the slide rail (7). A servo motor is installed on the side of the slide rail (7), and a gear is installed on the output shaft of the servo motor to engage with the teeth on the guard plate (701).

3. The maintenance platform for a rotary kiln according to claim 1, characterized in that: The slider in the lifting guardrail (601) is threadedly engaged with the screw rod (603).

4. The maintenance platform for a rotary kiln according to claim 1, characterized in that: The movable platform (5) is also provided with a slide groove (401) which is distributed in a triangular shape with the slide groove (401) in the fixed platform (4), and the slider inside the slide groove (401) is connected to the fixed seat.

5. The maintenance platform for a rotary kiln according to claim 1, characterized in that: The movable platform (5) is provided with bolt holes on one side close to the compensation plate (503), and the surface of the compensation plate (503) also has corresponding holes, which are connected via bolts.

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