Rotary unloader for aluminum oxide production
By adding a discharge slip and feed pipe at the feed port of the unloader, an open impeller structure is formed, and a reinforcement plate is welded in the middle of the blade, the problem of small and particulate materials in the production of alumina is solved, and the stable operation of the equipment is achieved.
Patent Information
- Application Number
- CN202422377782.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-29
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2034-09-29
AI Technical Summary
The existing rigid star unloaders are prone to jamming when transporting small particulate materials in alumina production, resulting in equipment stoppage.
Improve the position of the feed port of the unloader, and add a discharge slip and feed pipe to form an open impeller structure. The reinforcement plate is welded in the middle of the blade to improve stiffness and change the material conveying method.
It effectively avoids material jamming and failure, reduces system shear force, is suitable for the cutting control of block-face mixed materials, and has good on-site application without jamming.
Smart Images
Figure CN223046542U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a rotary discharger, in particular to a rotary discharger for alumina production. Background Art
[0002] The alumina clinker produced by our company belongs to self-pulverizing clinker, and the self-pulverization rate reaches more than 90%. As a result, a small part of the powdery material is small granular material. The rigid star-shaped discharger selected by our company is suitable for powdery materials. When there are small granular materials inside, a jamming failure will occur. The reason for jamming is that small particles are stuck at the edge of the upper blade of the shell, and the formed torque is equal to the uniform main force received by the blade edge multiplied by the distance from the blade to the axis. When this torque is greater than the maximum torque that the equipment can bear, the equipment will jam. This kind of rigid impeller discharger that feeds from the upper part and discharges from the lower part by the rotation of the blade is not suitable for transporting this kind of material. Summary of the Invention
[0003] The purpose of the utility model is to provide a rotary discharger for alumina production. By improving the position of the feed inlet of the discharger, adding a blanking chute, and adding reinforcing rib plates between the blades, the jamming failure during the material transportation process can be avoided.
[0004] The technical solution of the utility model: A rotary discharger for alumina production, including a discharger body, one feed inlet is opened on each of the left and right side walls of the discharger body, the feed inlet is located above the rotating shaft, one blanking chute is arranged above the discharger body, the discharge port of the blanking chute is connected with two feed pipes, and each feed pipe is connected with one feed inlet.
[0005] In the above-mentioned rotary discharger for alumina production, a plurality of blades are distributed on the rotating shaft, and adjacent blades are fixedly connected together through reinforcing rib plates on the side surfaces.
[0006] In the above-mentioned rotary discharger for alumina production, the middle positions in the length direction of adjacent blades are fixedly connected together through two reinforcing rib plates.
[0007] The beneficial effect of the utility model: Compared with the prior art, the utility model has a feed inlet on the side of the discharger, and a blanking chute and feed pipes are arranged to communicate with the feed inlet, forming an open impeller structure. Two reinforcing ribs are welded in the middle of the blade to ensure the stiffness of the blade during operation. Through this structural improvement, the shear force received by the system when the material is jammed is smaller, which is suitable for the blanking control of blocky and powdery mixed materials. After the transformed discharger is applied on site, the application situation is good and no jamming and stopping failures occur. Brief Description of the Drawings
[0008] Figure 1 It is a schematic diagram of the structure of the utility model;
[0009] Figure 2 Schematic side view of the unloader body;
[0010] Figure 3 Schematic view of the structure of the rotating shaft and the blades;
[0011] Figure 4 is Figure 3 schematic side view of;
[0012] Figure 5 Schematic side view of the existing unloader.
[0013] Reference numerals: 1 - unloader body, 2 - feed inlet, 3 - rotating shaft, 4 - discharge chute, 5 - feed pipe, 6 - blade, 7 - stiffening rib plate. Detailed implementation mode
[0014] The present invention will be further described below in conjunction with the drawings and embodiments, but it shall not be used as a basis for limiting the present invention.
[0015] Embodiment of the present invention: A rotary unloader for alumina production, comprising an unloader body 1. One feed inlet 2 is provided on each of the left and right side walls of the unloader body 1. The feed inlet 2 is located above the rotating shaft 3. One discharge chute 4 is provided above the unloader body 1. The discharge port of the discharge chute 4 is connected to two feed pipes 5. Each feed pipe 5 is connected to one feed inlet 2.
[0016] During use, the material enters through the discharge chute 4, and then enters the interior of the unloader body 1 through two feed pipes 5 respectively from two feed inlets 2 provided on the side, changing the original feeding method of feeding from the top of the unloader structure to feeding from both sides.
[0017] A plurality of blades 6 are distributed on the rotating shaft 3. The adjacent sides of the blades 6 are fixedly connected together by a stiffening rib plate 7 to ensure the rigidity of the blades 6 during operation.
[0018] The middle positions in the length direction of the adjacent blades 6 are fixedly connected together by two stiffening rib plates 7. Setting one in the middle position can strengthen the rigidity of the blades 6, and the other will not hinder the material from entering the bin formed between the adjacent blades 6 and the rotating shaft 3 through the feed inlet 2.
[0019] The improvement idea of the present invention: 1. Reduce the uniform resistance received by the blades 6; 2. Leave a certain material buffer space in the volume of the blades 6.
[0020] The specific improvements are as follows: The feed inlet of the existing unloader is welded and sealed with arc-shaped steel plates such as a cylinder body. Two feed inlets 2 are opened on the upper parts of the two side covers of the unloader body 1, and a blanking chute 4 is installed. The blanking chute 4 is connected to the feed inlet 2 through a feed pipe 5. The impeller is modified as follows: After two feed inlets 2 are opened on the upper parts of the two side plates of the unloader body 1, the original baffles on both sides of the impeller are removed, forming an open impeller structure; Two stiffening ribs 7 are welded to the middle of the blade 6 and the blade 6 to ensure the stiffness of the blade 6 during operation. After installation, the double-port side-type rotary unloader is successfully modified.
Claims
1. A rotary discharger for alumina production, characterized in that: The discharger comprises a discharger body (1), wherein a feed port (2) is respectively provided on the left and right side walls of the discharger body (1), and the feed port (2) is located above the rotating shaft (3). A discharge chute (4) is provided above the discharger body (1), and the discharge port of the discharge chute (4) is connected to two feed pipes (5), and each feed pipe (5) is connected to one feed port (2).
2. The rotary discharger for aluminum oxide production according to claim 1, characterized in that: A plurality of blades (6) are distributed on the rotating shaft (3), and the side surfaces of adjacent blades (6) are fixedly connected together via reinforcing rib plates (7).
3. The rotary discharger for aluminum oxide production according to claim 2, characterized in that: Adjacent blades (6) are fixedly connected together at the middle positions in the length direction via two reinforcing rib plates (7).