Device for eliminating surface cracks of sintered ore
By using cross beams, circular hoe and steel cutter devices in sintering production in steel mills, the problem of transverse cracks on the surface of sintered cakes is solved, and the effect of improving sintered mineralization and reducing powder rebate and fixed fuel consumption is achieved. .
Patent Information
- Application Number
- CN202421589984.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-08
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-07-08
AI Technical Summary
During the sintering production process of steel plants, lateral cracks will occur on the surface of the sintered cake under the action of cold shrinkage, resulting in local air leakage, sintered cold and fragmentation of the sintered ore, affecting mineralization, increasing the amount of powder rebate and fixed fuel consumption.
A device consisting of a cross beam, a circular hoe and a steel cutter is designed. Multiple groups of circular press hoes are arranged below the beam, and the press hoes form a 15° angle with the material surface. A steel cutter is installed between the two press hoes, and an arc-shaped groove is pressed on the surface of the sintered ore cake through the trolley movement. And cut out the longitudinal groove to prevent the lateral development of the cracks.
It effectively eliminates lateral cracks on the surface of the sintered cake, improves the mineralization of sintered cake, reduces the amount of powder reversal and fixed fuel consumption, and has a simple and low cost, and does not require an external power source.
Smart Images
Figure CN222455146U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sintering equipment in steel plants, in particular to a device for eliminating surface cracks of sintered ore. Background Art
[0002] In the prior art, during the sintering production process in a steel plant, transverse cracks will appear on the surface of the sintered cake due to the effect of cold shrinkage. The cracks will form local air leakage areas, causing the sintered ore in this area to be rapidly cooled and broken, affecting the mineralization, increasing the amount of returned powder, and increasing fixed fuel consumption. Utility Model Content
[0003] The utility model aims to provide a device which has a simple structure and can effectively reduce transverse through cracks and eliminate surface cracks of sintered ore in view of the above-mentioned shortcomings.
[0004] The technical solution of the utility model is: a device for eliminating cracks on the surface of sintered ore, which is characterized by comprising a crossbeam, with mounting lugs upwardly, multiple groups of pressure hoes evenly distributed downwardly on the crossbeam, the pressure hoes forming an acute angle with the surface of the material, and a group of steel cutters installed in two adjacent groups of pressure hoes.
[0005] The above scheme also includes:
[0006] The multiple groups of pressure hoes are circular pressure hoes, and the pressure hoes form an angle of 15° with the material surface.
[0007] The lifting ears are two at intervals, and the lifting ears are composed of two at intervals vertical plates and a pin shaft hole on the upper part of the vertical plates.
[0008] The utility model has the advantages that the horizontal cracks on the surface of the sintered cake are eliminated under the joint action of the circular pressure hoe and the steel cutter, no external power source is needed, the surface cracks of the sintered cake are eliminated with a simple and effective device, and the sintering mineralization is improved.
[0009] The embodiments of the present invention will be described in further detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0010] Figure 1 It is a simplified structural diagram of the utility model.
[0011] Figure 2 This is a schematic diagram of the side structure of the pressure hoe. DETAILED DESCRIPTION
[0012] See also Figure 1 , 2 The names of the parts are as follows: cross beam 1, lifting eye 2, pressure hoe 3, steel cutter 4, vertical plate 5, pin shaft hole 6.
[0013] See also Figure 1 , 2The device for eliminating cracks on the surface of sintered ore includes a crossbeam 1 made of steel pipe. The crossbeam 1 has an upward mounting lug 2 for fixing the crossbeam 1 behind the flat material feeder. The lugs 2 are spaced apart and consist of two spaced vertical plates 5 and a pin hole 6 on the upper part of the vertical plates 5. Three groups of pressing hoes 3 are evenly distributed downward on the crossbeam 1. The pressing hoes 3 are circular. The pressing hoes 3 form an angle of 15° with the material surface. The circular arc groove is pressed on the surface of the sintered ore cake by the movement of the trolley to increase the length of the surface shrinkage line to offset the cold shrinkage. A group of steel cutters 4 is installed in the two adjacent groups of pressing hoes 3 to longitudinally cut a groove with a width of 5 mm and a depth of 30 mm on the surface of the sintered ore cake to prevent the cracks from developing horizontally and achieve the purpose of eliminating horizontal cracks.
[0014] Instructions for use: During the production process of the sintering machine, the trolley moves forward, and the circular pressure hoe 3 presses an inverted arc groove on the surface of the premix, which extends the surface length of the sintered ore cake in the cross section and offsets the shrinkage. The steel cutter 4 cuts a 5mm wide and 30mm deep cutting groove on the surface of the premix, which blocks the lateral development of cracks in the process of forming sintered cakes out of the igniter. Under the joint action of the circular pressure hoe 3 and the steel cutter 4, the lateral cracks on the surface of the sintered cake are eliminated. This device is simple to manufacture and low in cost. It uses the sintering machine itself to complete the working process without adding additional power.
[0015] The above description is only a specific implementation of the present utility model, and various examples do not constitute a limitation on the essential content of the present utility model.
Claims
1. A device for eliminating surface cracks of sintered ore, characterized in that The invention comprises a crossbeam (1), the crossbeam (1) is provided with a mounting lug (2) upward, a plurality of groups of pressure hoes (3) are evenly distributed downward on the crossbeam (1), the pressure hoes (3) form an acute angle with the surface of the material, and a group of steel cutters (4) are installed in two adjacent groups of pressure hoes (3).
2. The device for eliminating surface cracks of sintered ore according to claim 1, characterized in that The multiple groups of pressure hoes (3) are circular pressure hoes, and the pressure hoes (3) form an angle of 15° with the surface of the material.
3. The device for eliminating surface cracks of sintered ore according to claim 1 or 2, characterized in that The lifting ears (2) are two at intervals, and the lifting ears (2) are composed of two spaced vertical plates (5) and a pin hole (6) on the upper part of the vertical plate (5).