Wear-resistant backpack for grain slag feed opening
By installing the backpack plate and protective layer of anti-wear materials at the water slag cutter, the serious wear of the water slag cutter is solved, the equipment is long life and low-cost maintenance are achieved, and the production continuity is ensured.
Patent Information
- Application Number
- CN202422335048.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-25
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-25
AI Technical Summary
The water slag discharge port is severely worn, resulting in high production costs, frequent maintenance and affecting production continuity.
The backpack plate and anti-wear material are used to form a protective layer. The backpack plate and the outer wall of the lower hopper are welded into a rectangular structure, and the anti-wear material is filled inside. The welding angle is controlled within 40°. The welding angle between the backpack plate and the outer wall of the lower hopper is ≤40°.
It improves the service life of the lower hopper, reduces the cost of spare parts, simplifies the maintenance process, and improves production efficiency and continuity.
Smart Images
Figure CN223060028U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of slag discharging equipment, and particularly relates to an abrasion-resistant backpack for a slag discharging port. Background Technique
[0002] The height difference between the head and the tail of the slag belt in the water steel slag plant is between 300 - 2000 mm, and the speed of the slag conveying belt is between v1.5 - 2.5 m / s. The impact wear of the slag on the side wall of the discharging port is serious.
[0003] Firstly, the on-site operation environment of the slag conveying belt is harsh. The waste water and steam in the belt corridor are diffused, resulting in easy rusting of the discharging port. At the same time, due to the different height differences of the slag belt, the local lining plate at the material dropping point of the discharging port is severely scoured. And the slag belt is for the conveying of blast furnace slag, and the slag conveying volume is extremely unstable, resulting in the change of the material dropping point of the discharging port, and causing wear and leakage of materials at some parts of the discharging port. The overall replacement cost of the discharging port is high, and the maintenance period is short.
[0004] Secondly, the treatment of the discharging port is difficult. In the area where the discharging port is scoured by slag, the wall thickness of the lining plate becomes thinner and repair welding cannot be carried out. The whole needs to be repaired by welding. Each treatment requires 3 people and more than 3 hours, and the shutdown of the belt will affect the smooth operation of the blast furnace. Content of the Utility Model
[0005] The purpose of the utility model is to solve the above problems and provide an abrasion-resistant backpack for a slag discharging port.
[0006] To solve the above technical problems, the technical scheme adopted by the utility model is as follows:
[0007] An abrasion-resistant backpack for a slag discharging port includes a backpack plate and abrasion-resistant materials. The backpack plate is welded by steel plates to form a rectangular structure, and is filled with abrasion-resistant materials inside. The four peripheral edges of the backpack plate are welded to the middle part of the outer side wall of the feeding hopper opposite to the belt conveyor.
[0008] Further, the abrasion-resistant materials are the same as the slag materials.
[0009] Further, the welding angle between the backpack plate and the outer side wall of the feeding hopper is ≤ 40°.
[0010] Further, the thickness of the backpack plate is 14 mm.
[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:
[0012] 1. By setting the backpack plate and wear-resistant materials, the utility model forms a further protective layer for the side wall of the feeding hopper, which can effectively improve its service life, reduce the spare parts cost, and effectively ensure normal production.
[0013] 2. The structure of the utility model is simple and easy to install. It can be manufactured offline without shutting down the machine, greatly improving production efficiency and reducing production costs.
[0014] 3. The welding angle of the backpack plate of the utility model is controlled within 40 degrees, which can reduce the impact wear of water slag materials on the welding interface and does not affect the overall use effect of the feeding port. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 is a schematic structural diagram of the utility model;
[0016] In the figure: 1. Feeding hopper; 2. Belt conveyor; 3. Water slag material; 4. Backpack plate; 5. Wear-resistant material. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0017] The present utility model will be further described below with reference to the drawings and embodiments.
[0018] As Figure 1 shown, a wear-resistant backpack for a water slag feeding port includes a backpack plate 4 and a wear-resistant material 5. The backpack plate 4 is welded with a 14-mm-thick steel plate to form a rectangular structure, and is filled with a wear-resistant material 5 that is the same as the water slag material 3 and has uniform particle size. The four sides of the backpack plate 4 are welded to the middle of the outer side wall of the feeding hopper 1 opposite to the belt conveyor 2, and the welding angle between the backpack plate 4 and the outer side wall of the feeding hopper 1 is ≤40°, so as to reduce the impact wear of the water slag material 3 on the welding interface and not affect the overall use effect of the feeding port.
[0019] The working process of the present utility model:
[0020] The water slag material 3 is transported by the belt conveyor 2. When it reaches the end of the belt conveyor 2, the water slag material 3 falls. Due to the relatively high speed of the belt conveyor 2, the water slag material 3 impacts and falls on the side wall of the opposite feeding hopper 1 under the action of inertia. Due to the height difference and the action of inertial speed, the impact of the water slag material 3 on the material dropping point on the inner side wall of the feeding hopper 1 is serious. And because the water slag belt is for transporting blast furnace water slag, the conveying volume of the water slag material 3 is extremely unstable, resulting in the change of the material dropping point, causing large-area wear and leakage of the inner side wall of the feeding hopper 1. When the inner side wall of the feeding hopper 1 is worn and leaks under the repeated impact of the water slag material 3, after the wear-resistant material 5 stored in the backpack plate 4 is washed away by the water slag material 3, the water slag material 3 particles will continuously fill in, keeping the quantity of the wear-resistant material 5 basically unchanged, showing the phenomenon of "material grinding material", preventing the impact wear of the water slag material 3 on the backpack plate 4, thereby improving the service life of the feeding hopper 1, reducing the spare part cost, and effectively ensuring normal production.
[0021] According to the material conveying direction of the belt conveyor 2, just install the backpack plate 4 at the corresponding blanking position of the blanking hopper 1. The backpack plate 4 can be manufactured offline without major disassembly, with short processing time and good effect.
Claims
1. An abrasion-resistant backpack for the water slag feeding port, characterized in that It includes a backpack plate (4) and wear-resistant material (5). The backpack plate (4) is formed into a rectangular structure by welding steel plates and is filled with wear-resistant material (5) inside. The four peripheral edges of the backpack plate (4) are welded to the middle of the outer side wall of the blanking hopper (1) opposite to the belt conveyor (2).
2. The wear-resistant backpack at the water slag discharge port according to claim 1, wherein The wear-resistant material (5) is the same as the slag granule material (3).
3. A wear-resistant backpack for the water slag discharge port according to claim 2, characterized in that, The welding angle between the backpack plate (4) and the outer side wall of the blanking hopper (1) is ≤ 40°.
4. The wear-resistant backpack at the water slag feeding port according to claim 1, characterized in that The thickness of the backpack plate (4) is 14 mm.