Device for replacing push head of preheater of rotary kiln
By designing a push head replacement device including a mobile car, hydraulic cylinder and pulley set, the problem of difficulty in replacing the push head of the rotary kiln preheater is solved, and the rapid replacement of the push head is achieved and the replacement efficiency is improved.
Patent Information
- Application Number
- CN202421862567.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-08-02
AI Technical Summary
In the prior art, the rotary kiln preheater pusher is difficult to quickly pull out due to site and erection angle problems during replacement, resulting in low replacement efficiency.
A push head replacement device including a moving trolley, hydraulic cylinder, pulley set and pull rope is designed. The pull rope is driven to move along the pulley set by hydraulic cylinder, and combined with a support seat and auxiliary rod, the push head is quickly pulled out and replaced.
The rapid replacement of the push head is realized, the replacement efficiency is improved, and the problem of slow replacement of the push head in the prior art is solved.
Smart Images
Figure CN223050409U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a push head replacement device for a rotary kiln preheater, belonging to the technical field of rotary kilns. Background Art
[0002] In the raw material system of a lime kiln, limestone is fed into the preheater through a belt, and the preheater feeds the preheated limestone into the rotary kiln through a push head. During operation, the push head will crack and break due to a series of reasons such as high temperature and high pressure. Since the push head weighs 300 kg, the preheater is about 35 m high, and there is a 2-m-wide platform and railing around the push head without fixed anchor points. Usually, the replacement is carried out by erecting a steam crane, using the steam crane hook as an anchor point, and pulling out and replacing the push head through the cooperation of manual labor and the steam crane. During the process, due to site and erection angle problems, the push head cannot be pulled out or the replacement is slow. Content of the Utility Model
[0003] The technical problem to be solved by the utility model is to provide a push head replacement device for a rotary kiln preheater according to the above-mentioned prior art, which can quickly pull out the push head, facilitate the replacement of the push head, and improve the replacement efficiency.
[0004] The technical solution adopted by the utility model to solve the above problems is as follows: A push head replacement device for a rotary kiln preheater includes a moving trolley, the moving trolley is arranged outside the preheater body, the push head body penetrates through the side surface of the preheater body, a hydraulic cylinder is arranged inside the preheater body, and the push head body is arranged above the hydraulic cylinder; a fixed seat is arranged on the moving trolley, a pulley block is arranged inside the fixed seat, a pulling rope is arranged on the pulley block, one end of the pulling rope is connected to the push head body, and the other end of the pulling rope is connected to the extending rod of the hydraulic cylinder. The hydraulic cylinder drives the pulling rope to move along the pulley block, pulls the push head body to the moving trolley, and then pushes the moving trolley out.
[0005] A support seat is arranged at the bottom of the push head body, the top surface of the support seat is an inclined surface, and the inclination angle of the top surface of the support seat matches the inclination angle of the push head body.
[0006] The moving trolley includes a vehicle frame, and wheels and auxiliary wheels are symmetrically arranged at the bottom of the vehicle frame.
[0007] An auxiliary rod is also provided, the auxiliary rod is arranged on the connecting frame, and the auxiliary rod abuts against the top of the moving trolley.
[0008] The pulley block includes two pulleys arranged in parallel up and down, and the pulling rope is arranged in the groove of the pulley.
[0009] Compared with the prior art, the advantages of the utility model are as follows: A push head replacement device for a rotary kiln preheater can quickly pull out the push head body, facilitate the replacement of the push head body, and improve the replacement efficiency. Description of the Drawings
[0010] Figure 1 This is the front view of a device for replacing the pusher head of a rotary kiln preheater according to an embodiment of the present utility model;
[0011] Figure 2 This is the 3D view of a device for replacing the pusher head of a rotary kiln preheater according to an embodiment of the present utility model;
[0012] In the figure, 1 is the preheater body, 2 is the auxiliary rod, 3 is the connecting frame, 4 is the vehicle frame, 5 are the wheels, 6 is the pusher head connecting rod, 7 is the fixed seat, 8 is the pulling rope, 9 is the support seat, 10 is the pusher head body, 11 is the hydraulic cylinder, 12 is the hydraulic cylinder seat, 13 are the auxiliary wheels, and 14 are the pulleys. Detailed implementation manners
[0013] The following further describes the present utility model in detail with reference to the accompanying drawings and embodiments.
[0014] As Figure 1 、 2 shown, a device for replacing the pusher head of a rotary kiln preheater in this embodiment includes a mobile trolley. The mobile trolley is arranged outside the preheater body 1. The pusher head body 10 penetrates through the side surface of the preheater body 1. A hydraulic cylinder 11 is arranged inside the preheater body 1. The cylinder end of the hydraulic cylinder 11 is hinged to the preheater body 1 through a hydraulic cylinder seat 12. The pusher head body 10 is arranged above the hydraulic cylinder 11. A support seat 9 is arranged between the hydraulic cylinder and the pusher head body. The pusher head body 10 is supported on the support seat 9. The top surface of the support seat 9 is an inclined surface. The inclination angle of the top surface of the support seat 9 matches the inclination angle of the installation of the pusher head body 10, so that the bottom of the pusher head body 10 is attached to the top surface of the support seat 9, playing a supporting role for the pusher head body. A fixed seat 7 is arranged on the mobile trolley. Two pulleys 14 arranged in parallel up and down are arranged inside the fixed seat 7. One end of the pulling rope 8 is tied to the pusher head body 10, and the other end of the pulling rope 8 is tied to the extending rod of the hydraulic cylinder 11 after passing through the two pulleys 14. When the extending rod of the hydraulic cylinder 11 retracts, it drives the pulling rope to pull the pusher head body along the support seat towards the mobile trolley, so that the pusher head body is pulled out of the preheater body and then removed through the mobile trolley.
[0015] The above-mentioned pulling rope is arranged in the groove of the pulley, and the groove has a limiting effect on the movement of the pulling rope.
[0016] The above-mentioned mobile trolley includes a vehicle frame 4. Wheels 5 and auxiliary wheels 13 are symmetrically arranged at the bottom of the vehicle frame 4. After moving into place, the wheels and auxiliary wheels are limited by a limiting block to prevent the vehicle frame from moving. When the limiting block is removed, the vehicle frame can move, and then the pusher head body can be moved out.
[0017] A connecting frame 3 is hinged to the top of the preheater body 1. The bottom surface of the connecting frame 3 is hinged to a pusher head connecting rod 6. An auxiliary rod 2 is arranged on the connecting frame 3. The connecting frame 3 rotates upwards around the hinge point, and the auxiliary rod 2 abuts against the top of the mobile trolley, so that the connecting frame 3 is in a suspended state.
[0018] When the pusher body is working, the connecting frame is connected to the hydraulic cylinder, and the pusher body is connected to the pusher connecting rod. The hydraulic cylinder pushes the connecting frame to rotate around the hinge point, so that the pusher connecting rod pulls the pusher body to send the preheated limestone into the rotary kiln. When the pusher body needs to be replaced, remove the connecting parts between the connecting frame and the hydraulic cylinder, and the connecting parts between the pusher body and the pusher connecting rod. Move the trolley to the side of the preheater body, rotate the connecting frame upward, and the auxiliary rod abuts against the moving trolley. One end of the rear pull rope is tied to the pusher body, and the other end is tied to the extending rod of the hydraulic cylinder after passing through two pulleys. The extending rod of the hydraulic cylinder retracts, driving the pull rope to pull the pusher body to move along the support seat towards the moving trolley, so that the pusher body is pulled out of the preheater body and placed on the moving trolley, and then removed by the moving trolley.
[0019] This application can quickly pull out the pusher body, which is convenient for replacing the pusher body and improves the replacement efficiency.
[0020] In addition to the above embodiments, the present utility model also includes other embodiments. Any technical solutions formed by equivalent transformation or equivalent substitution shall fall within the protection scope of the claims of the present utility model.
Claims
1. A pusher replacement device for a rotary kiln preheater, characterized in that: It includes a moving trolley, which is arranged on the outside of the preheater body, a pusher head body is passed through the side of the preheater body, a hydraulic cylinder is arranged in the preheater body, and the pusher head body is arranged above the hydraulic cylinder; a fixed seat is arranged on the moving trolley, a pulley block is arranged in the fixed seat, a pulley block is arranged on the pulley block, one end of the pull rope is connected to the pusher head body, and the other end of the pull rope is connected to the extension rod of the hydraulic cylinder, the hydraulic cylinder drives the pull rope to move along the pulley block, pulls the pusher head body to the moving trolley, and then pushes the moving trolley out.
2. The device for replacing a pusher head of a rotary kiln preheater according to claim 1, characterized in that: A support seat is provided at the bottom of the pusher head body, and the top surface of the support seat is an inclined surface, and the inclination angle of the top surface of the support seat matches the inclination angle of the pusher head body.
3. The device for replacing a pusher head of a rotary kiln preheater according to claim 1, characterized in that: The mobile vehicle comprises a frame, and wheels and auxiliary wheels are symmetrically arranged at the bottom of the frame.
4. The device for replacing a pusher head of a rotary kiln preheater according to claim 1, characterized in that: An auxiliary rod is also provided, which is arranged on the connecting frame and abuts against the top of the moving trolley.
5. The device for replacing a pusher head of a rotary kiln preheater according to claim 1, characterized in that: The pulley block comprises two pulleys which are arranged in parallel up and down, and the pull rope is arranged in the grooves of the pulleys.