Block scraping device for rotary kiln

Abstract

The utility model aims to provide a block raking device for a rotary kiln, aiming at solving the problems of ring raking and block raking operation of the existing rotary kiln. The block raking device for the rotary kiln comprises a block raking hook head, a walking trolley frame, a trolley track frame, a trolley walking wheel set, a balance weight, a hydraulic push rod, a rotating supporting frame, a central rotating shaft, a rotating shaft bearing seat, a base, a track frame rotating shaft, a hook head fixing beam and a rotating push rod. The device is installed on a platform, right facing a kiln door, of the head of the rotary kiln, applicability is high, operation efficiency is high, operation is easy and convenient, installation and maintenance cost is low, and rotary kiln block raking operation can be efficiently completed.

Description

Technical Field

[0001] This utility model belongs to the technical field of pellet sintering equipment, and particularly relates to a pelletizing device for rotary kilns. Background Technology

[0002] In the chain grate-rotary kiln pellet production process, green pellets are dried and preheated on a chain grate machine to achieve preliminary solidification and gain a certain strength before entering the rotary kiln for final roasting and solidification. During the roasting process in the rotary kiln, pellets may form clumps and rings (rings refer to ring-shaped structures formed by adhering material on certain areas of the kiln lining during rotary kiln operation) due to various reasons. The detached rings are discharged from the kiln head along with the roasted pellets and accumulate on the fixed screen at the kiln head. These rings need to be manually removed from the fixed screen using tools and transported through the chute at the kiln head to a waste trough on the ground for storage. In the past, there were two types of tools used manually for removing blocks. One type involved attaching the hook to an iron pipe, which the worker held by hand. This method was physically demanding, required workers to endure high temperatures, and posed safety hazards. The other type involved attaching the hook to the working device of a forklift or excavator, which the worker then operated. This method was somewhat mechanized and could reduce the physical labor intensity of workers to some extent. However, it required workers to have specialized operational skills, and the block removal site was limited, constituting confined space work. This method demanded high skill levels from workers and posed certain safety hazards. Summary of the Invention

[0003] The purpose of this utility model patent is to address the problems existing in the current rotary kiln ring-forming and ring-removing operation by providing a ring-removing device for rotary kilns. This device is installed on a platform at the head of the rotary kiln directly opposite the kiln door. It is highly adaptable, efficient, easy to operate, and has low installation and maintenance costs, enabling it to efficiently complete the ring-forming operation in rotary kilns.

[0004] A block-scraping device for a rotary kiln includes a block-scraping hook, a traveling trolley frame, a trolley track frame, a trolley traveling wheel set, a counterweight, a hydraulic push rod, a rotating support frame, a central rotating shaft, a rotating shaft bearing seat, a base, a track frame rotating shaft, a hook fixing beam, and a rotating push rod.

[0005] The block-scraping hook consists of a front bent hook head and a rear connecting rod. The rear connecting rod is fixedly connected to the hook head fixing beam. The traveling trolley frame is mounted on the trolley traveling wheel set. The two ends of the hook head fixing beam are fixedly connected to the front of the traveling trolley frame. The rear end of the traveling trolley frame is equipped with a counterweight. The trolley traveling wheel set is mounted in the trolley track frame and moves linearly back and forth within the trolley track frame. The bottom front end of the trolley track frame is connected to the track frame rotating shaft, and the bottom rear end is connected to the hydraulic push rod. The hydraulic push rod and the track frame rotating shaft are fixedly connected to the rotating support frame. The bottom of the rotating support frame is fixedly connected to the central rotating shaft. A thrust bearing is mounted on the central rotating shaft and fixed to the base through the rotating shaft bearing seat. The base is mounted on the rotary kiln head platform. The rotating push rod is fixedly connected to the rotating support frame.

[0006] Furthermore, in the aforementioned rotary kiln scraper device, the trolley traveling wheel set includes a front axle and a front traveling wheel, as well as a rear axle and a rear traveling wheel, and the trolley traveling wheel set is equipped with a power drive mechanism.

[0007] Furthermore, the aforementioned rotary kiln shovel device includes a power drive mechanism for the trolley traveling wheel set, which is a winch mounted on the top of the trolley track frame. One end of the winch's wire rope is connected to the front axle of the trolley traveling wheel set, and the other end is connected to the rear axle of the trolley traveling wheel set. The forward and reverse rotation of the winch can control the forward and backward movement of the trolley traveling wheel set.

[0008] Furthermore, the aforementioned rotary kiln block-scraping device includes an upper frame, a lower frame, and a support rod for connecting the upper and lower frames. The upper and lower frames are provided with grooves for setting the front and rear wheels of the trolley's wheel set.

[0009] Compared with the prior art, the advantages of this utility model are:

[0010] The device is installed on a platform directly opposite the kiln door at the head of the rotary kiln. It is highly adaptable, efficient, easy to operate, and has low installation and maintenance costs, enabling it to efficiently complete the block removal operation in the rotary kiln. Attached Figure Description

[0011] Figure 1 Side view of this device;

[0012] Figure 2 Top view of this device;

[0013] Among them, 1. Block hook, 2. Traveling trolley frame, 3. Trolley track frame, 4. Trolley traveling wheel set, 5. Wire rope, 6. Winch, 7. Counterweight, 8. Hydraulic push rod, 9. Rotating support frame, 10. Central shaft, 11. Shaft bearing seat, 12. Base, 13. Track frame shaft, 14. Hook head fixing beam, 15. Rotating push rod, 1-1. Front bent hook head, 1-2. Rear connecting rod. Detailed Implementation

[0014] A block-scraping device for a rotary kiln includes a block-scraping hook 1, a traveling trolley frame 2, a trolley track frame 3, a trolley traveling wheel set 4, a wire rope 5, a winch 6, a counterweight plate 7, a hydraulic push rod 8, a rotating support frame 9, a central rotating shaft 10, a rotating shaft bearing seat 11, a base 12, a track frame rotating shaft 13, a hook fixing beam 14, and a rotating push rod 15.

[0015] The block-pulling hook consists of a front bent hook head 1-1 and a rear connecting rod 1-2. The rear connecting rod is fixedly connected to the hook head fixing beam. Both ends of the hook head fixing beam are fixedly connected to the front of the traveling trolley frame. A counterweight is provided at the rear end of the traveling trolley frame. The weight of the counterweight is similar to the weight of the front block-pulling hook to keep the two ends of the traveling trolley frame balanced. The traveling trolley frame is mounted on the trolley traveling wheel set. The trolley traveling wheel set includes a front axle and front wheel, and a rear axle and rear wheel. The trolley traveling wheel set is equipped with a power drive mechanism. The trolley traveling wheel set is mounted inside the trolley track frame and moves linearly back and forth within the trolley track frame. The power drive mechanism of the trolley traveling wheel set includes a winch mounted on the top of the trolley track frame. One end of the winch's wire rope is connected to the front axle of the trolley traveling wheel set, and the other end is connected to the rear axle of the trolley traveling wheel set. The forward and reverse rotation of the winch can control the forward and backward movement of the trolley traveling wheel set. The trolley track frame includes an upper frame, The system includes a lower frame and support rods for connecting the upper and lower frames. The upper and lower frames have grooves for mounting the wheels of the trolley's traveling wheel assembly. The support rods also restrict the movement of the trolley's traveling wheel assembly, preventing the front and rear wheels from moving off the trolley track frame. The bottom front end of the trolley track frame is connected to a track frame pivot, and the bottom rear end is connected to a hydraulic push rod. The hydraulic push rod allows the trolley track frame to rotate within a certain angle around the track frame pivot in a vertical plane. The hydraulic push rod and the track frame pivot are fixedly connected to a rotating support frame. The bottom of the rotating support frame is fixedly connected to a central pivot. A thrust bearing is installed on the central pivot and fixed to a base via a pivot bearing seat. The base is located on the rotary kiln head platform. The rotating push rod and the rotating support frame are integral; when needed, they can be manually pushed to achieve horizontal rotation of the rotating support frame.

[0016] When this device is used for briquetting operations, the rotation of the winch drives the trolley's traveling wheels to move forward or backward, thereby causing the briquetting hook to move forward or backward in a straight line. Alternatively, a hydraulic push rod can be used to rotate the trolley's track frame within a certain angle around its axis in a vertical plane, thus moving the briquetting hook up and down. Furthermore, a rotating push rod can be pushed to rotate the rotating support frame horizontally, thereby causing the briquetting hook to rotate horizontally. With the assistance of the winch, hydraulic push rod, and bearings, this device boasts high operating efficiency, simple operation, and low installation and maintenance costs, enabling it to efficiently complete briquetting operations in rotary kilns.

Claims

1. A spade block device for a rotary kiln, characterized in that, The hook head, the walking trolley frame, the trolley track frame, the trolley walking wheel set, the counterweight, the hydraulic push rod, the rotating support frame, the central rotating shaft, the rotating shaft bearing seat, the base, the track frame rotating shaft, the hook head fixing beam, and the rotating push rod are included. The hook head is composed of a front bent hook head and a rear connecting rod, and the rear connecting rod is fixedly connected with the hook head fixing beam. The walking trolley frame is arranged on the trolley walking wheel set, and the two ends of the hook head fixing beam are fixedly connected with the front part of the walking trolley frame. The rear end of the walking trolley frame is provided with a counterweight, and the trolley walking wheel set is arranged in the trolley track frame and moves linearly in the trolley track frame. The front end bottom of the trolley track frame is connected with the track frame rotating shaft, and the rear end bottom is connected with the hydraulic push rod. The hydraulic push rod and the track frame rotating shaft are fixedly connected on the rotating support frame, the bottom of the rotating support frame is fixedly connected with the central rotating shaft, the central rotating shaft is provided with a thrust bearing, the thrust bearing is fixed on the base through the rotating shaft bearing seat, the base is arranged on the rotary kiln head platform, and the rotating push rod is fixedly connected with the rotating support frame.

2. A flighting device for a rotary kiln according to claim 1, characterised in that, The trolley walking wheel set includes a front wheel shaft and a front walking wheel, and a rear wheel shaft and a rear walking wheel. The trolley walking wheel set is provided with a power driving mechanism.

3. A flighting device for a rotary kiln according to claim 2, characterised in that, The power driving mechanism of the trolley walking wheel set includes a winch arranged on the top of the trolley track frame. One end of the steel wire rope of the winch is connected with the front shaft of the trolley walking wheel set, and the other end is connected with the rear shaft of the trolley walking set. The winch can control the trolley walking wheel set to move forward and backward by forward and reverse rotation.

4. The flighting apparatus for a rotary kiln of claim 2, wherein, The trolley track frame includes an upper frame, a lower frame, and a support rod for connecting the upper frame and the lower frame. The upper frame and the lower frame are provided with grooves for arranging the front and rear walking wheels of the trolley walking wheel set.

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