A pinch roll dephosphorizing device

Abstract

The utility model relates to a kind of pinch roll phosphorus removal device, it includes rack (1), the rack (1) is provided with upper pin shaft (2) and lower pin shaft (3), hinged setting is provided with upper roll shaft box (4) on the upper pin shaft (2), hinged setting is provided with lower roll shaft box (5) on the lower pin shaft (3), upper roll shaft (6) is worn along front-back direction on the upper roll shaft box (4), lower roll shaft (7) is worn along front-back direction on the lower roll shaft box (5), upper pinch roll (8) is provided at the front end of the upper roll shaft (6), lower pinch roll (9) is provided at the front end of the lower roll shaft (7), upper pinch roll (8) and lower pinch roll (9) are arranged oppositely up and down.The utility model relates to a kind of pinch roll phosphorus removal device, its structure is simple, production manufacturing cost is low, can effectively remove the oxide scale on the surface of blank, effectively ensure the final product quality.

Description

Technical Field

[0001] This utility model relates to a descaling device for pinch rollers, belonging to the technical field of steel ball production equipment. Background Technology

[0002] Steel balls, as the grinding media in ball mills, are widely used in the grinding process of ball mills. Ball mills are the main equipment in mineral processing and are widely used in mineral processing plants. my country is a major ore-producing country with a large number of ball mills in operation, requiring a large quantity of steel balls. Steel balls are consumable parts, and the annual consumption is substantial. Forged steel balls are widely used due to their long service life. Hot-rolled steel balls are also widely used because of their stable internal quality, dense microstructure, fine grains, resistance to deformation, and good wear resistance.

[0003] Conventional hot-rolled steel ball production processes generally adopt the ferrous metallurgical industry standard for forged (rolled) steel balls (YB / T091-2005) to professionally produce hot-rolled grinding steel balls of various specifications, with a diameter range of ￠25~￠125mm. The billets used for rolling grinding steel balls are hot-rolled round steel bars of various chemical compositions, with a diameter equal to the nominal diameter of the steel ball; conventional hot-rolled steel balls mainly... The production process should be as follows: Step 1: After inspection, the round steel bars are cut into steel ball blanks according to the specified length; Step 2: The steel ball billet is heated to a suitable temperature in a continuous heating furnace before rolling; Step 3: After the red-hot steel billet is fed into the hot rolling mill, it passes between two rolls with special spiral grooves. It rotates forward and is continuously rolled into steel balls; Step 4: The rolled red-hot steel balls are immediately sent to a heat treatment device for quenching and tempering heat treatment, so that the steel balls... Achieve high and uniform hardness; Step 5: Products that pass inspection are sent to the finished goods warehouse, packaged, and then shipped to customers.

[0004] Step Two: Before rolling, the billet needs to be heated to a suitable temperature in a reheating furnace. During this heating process, iron oxide scale will form on the surface of the billet. If this iron oxide scale is not removed before rolling, it can easily cause material jamming. Furthermore, during rolling, it can be pressed into the surface of the steel balls by the rolls, affecting its surface quality. Simultaneously, the residual iron oxide scale will accelerate roll wear and reduce roll life. Therefore, the iron oxide scale on the surface of the billet must be removed before rolling. Currently, the common practice is to add a high-pressure water descaling device to the furnace exit roller conveyor. This method has relatively high investment costs, complex structure, high manufacturing and operating costs, and high technical performance requirements. In addition, the billet temperature drops significantly after high-pressure water descaling, increasing both energy consumption and the operating load of the rolling equipment. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a pinch roller descaling device that is simple in structure, low in manufacturing cost, and can remove iron oxide scale from the surface of billets, thus effectively ensuring the quality of the final product.

[0006] The technical solution adopted by this utility model to solve the above problems is as follows: a pinch roller descaling device, which includes a frame, an upper pin and a lower pin on the frame, an upper roller shaft box hinged to the upper pin, a lower roller shaft box hinged to the lower pin, an upper roller shaft passing through the upper roller shaft box along the front-back direction, a lower roller shaft passing through the lower roller shaft box along the front-back direction, an upper pinch roller at the front end of the upper roller shaft, a lower pinch roller at the front end of the lower roller shaft, and the upper pinch roller and the lower pinch roller are arranged vertically opposite each other.

[0007] Optionally, the upper pinch roller is eccentrically arranged with respect to the upper roller shaft, and the lower pinch roller is eccentrically arranged with respect to the lower roller shaft.

[0008] Optionally, a cylinder seat is provided above the upper roller housing, and a cylinder is hinged to the cylinder seat, with the lower end of the cylinder hinged to the top of the upper roller housing.

[0009] Optionally, a pneumatic vibrator is provided on the top of the upper roller box.

[0010] Optionally, the pneumatic vibrator is positioned near the front side of the upper roller housing.

[0011] Optionally, a support bolt is provided below the lower roller housing, and an adjusting nut is provided on the support bolt.

[0012] Optionally, the support bolt is located near the front side of the lower roller housing.

[0013] Optionally, there are two sets of upper roller shaft boxes, arranged side by side; there are also two sets of lower roller shaft boxes, arranged side by side.

[0014] Optionally, the positions of the left and right upper roller shaft boxes and the left and right lower roller shaft boxes correspond to each other.

[0015] Optionally, a support is provided at the rear of the frame, a drive motor is provided on the support, and a reduction gearbox is provided in front of the drive motor. The reduction gearbox includes an input end and an output end. The output end of the drive motor is connected to the input end, and the output end is connected to the upper roller shaft or the lower roller shaft through a universal coupling.

[0016] Compared with the prior art, the advantages of this utility model are: 1. This utility model has a simple structure, low investment cost, and low production and usage cost; 2. This utility model can quickly remove iron oxide scale from the surface of the billet through the pinch roller mechanism, which greatly improves the dephosphorization efficiency and effectively ensures the quality of the final product. 3. This utility model removes the iron oxide scale on the surface of the billet through the pinch roll mechanism, which will not significantly reduce the billet temperature or increase the operating load of subsequent rolling equipment. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a pinch roller descaling device according to the present invention.

[0018] Figure 2 for Figure 1 Top view.

[0019] Figure 3 for Figure 1 Side view.

[0020] in: Rack 1 Upper pin 2 Lower pin 3 Upper roller box 4 Lower roller box 5 Upper roller 6 Lower roller 7 Upper pinch roller 8 Lower pinch roller 9 Cylinder seat 10 Cylinder 11 Pneumatic vibrator 12 Support bolt 13 Adjusting nut 14 Bracket 15 Drive motor 16 Gearbox 17 Input terminal 171 Output 172 Universal coupling 18. Detailed Implementation

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0022] See Figures 1-3 This utility model relates to a pinch roller dephosphorization device, which includes a frame 1. An upper pin 2 and a lower pin 3 are provided on the frame 1. An upper roller shaft box 4 is hinged to the upper pin 2, and a lower roller shaft box 5 is hinged to the lower pin 3. An upper roller shaft 6 is threaded through the upper roller shaft box 4 along the front-back direction, and a lower roller shaft 7 is threaded through the lower roller shaft box 5 along the front-back direction. An upper pinch roller 8 is provided at the front end of the upper roller shaft 6, and a lower pinch roller 9 is provided at the front end of the lower roller shaft 7. The upper pinch roller 8 and the lower pinch roller 9 are arranged vertically opposite each other. The upper pinch roller 8 is eccentrically arranged with the upper roller shaft 6, and the lower pinch roller 9 is eccentrically arranged with the lower roller shaft 7; A cylinder seat 10 is provided above the upper roller shaft box 4, and a cylinder 11 is hinged on the cylinder seat 10. The lower end of the cylinder 11 is hinged to the top of the upper roller shaft box 4. A pneumatic vibrator 12 is provided on the top of the upper roller box 4; The pneumatic vibrator 12 is located near the front side of the upper roller box 4; A support bolt 13 is provided below the lower roller box 5, and an adjusting nut 14 is provided on the support bolt 13; The support bolt 13 is located near the front side of the lower roller box 5; There are two sets of upper roller shaft boxes 4, which are arranged side by side; there are also two sets of lower roller shaft boxes 5, which are arranged side by side. The positions of the left and right upper roller shaft boxes 4 and the left and right lower roller shaft boxes 5 are corresponding; A support 15 is provided at the rear of the frame 1, and a drive motor 16 is provided on the support 15. A reduction gearbox 17 is provided in front of the drive motor 16. The reduction gearbox 17 includes an input end 171 and an output end 172. The output end of the drive motor 16 is connected to the input end 171, and the output end 172 is connected to the upper roller shaft 6 or the lower roller shaft 7 through a universal coupling 18.

[0023] In addition to the above embodiments, this utility model also includes other implementation methods. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of this utility model.

Claims

1. A pinch roller descaling device, characterized in that: It includes a frame (1), on which an upper pin (2) and a lower pin (3) are provided. An upper roller housing (4) is hinged on the upper pin (2), and a lower roller housing (5) is hinged on the lower pin (3). An upper roller shaft (6) is threaded through the upper roller housing (4) along the front-back direction, and a lower roller shaft (7) is threaded through the lower roller housing (5) along the front-back direction. An upper pinch roller (8) is provided at the front end of the upper roller shaft (6), and a lower pinch roller (9) is provided at the front end of the lower roller shaft (7). The upper pinch roller (8) and the lower pinch roller (9) are arranged opposite each other vertically.

2. The pinch roller descaling device according to claim 1, characterized in that: The upper pinch roller (8) is eccentrically arranged with the upper roller shaft (6), and the lower pinch roller (9) is eccentrically arranged with the lower roller shaft (7).

3. The pinch roller descaling device according to claim 1, characterized in that: A cylinder seat (10) is provided above the upper roller shaft box (4), and a cylinder (11) is hinged on the cylinder seat (10). The lower end of the cylinder (11) is hinged to the top of the upper roller shaft box (4).

4. The pinch roller descaling device according to claim 1, characterized in that: A pneumatic vibrator (12) is provided on the top of the upper roller box (4).

5. The pinch roller descaling device according to claim 1, characterized in that: A support bolt (13) is provided below the lower roller box (5), and an adjusting nut (14) is provided on the support bolt (13).

6. The pinch roller descaling device according to claim 5, characterized in that: The support bolt (13) is located near the front side of the lower roller box (5).

7. The pinch roller descaling device according to claim 1, characterized in that: There are two sets of upper roller shaft boxes (4), which are arranged side by side on the left and right; there are also two sets of lower roller shaft boxes (5), which are arranged side by side on the left and right.

8. The descaling device for pinch rollers according to claim 7, characterized in that: The positions of the two sets of upper roller shaft boxes (4) and the two sets of lower roller shaft boxes (5) are corresponding.

9. The pinch roller descaling device according to claim 1, characterized in that: A support (15) is provided behind the frame (1), a drive motor (16) is provided on the support (15), and a reduction gearbox (17) is provided in front of the drive motor (16). The reduction gearbox (17) includes an input end (171) and an output end (172). The output end of the drive motor (16) is connected to the input end (171), and the output end (172) is connected to the upper roller shaft (6) or the lower roller shaft (7) through a universal coupling (18).

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