U-shaped sieve device of ball forming machine

Abstract

The utility model relates to a ball forming machine and belongs to steel production equipment. In particular to a U-shaped screen device of a ball making machine. The purposes of prolonging the service life and reducing the maintenance cost are achieved. Comprising a screen part and screen fixing parts arranged at the two ends of the screen part, wherein the first fixing part is connected with the first end of the screen part, and the second fixing part is connected with the second end of the screen part; a gasket part is arranged at the top of the fixing part II; the outer side of each screen fixing part is provided with a shaft lug part used for being connected with a ball forming machine. The gasket part and the second fixing part form an integrated structure, and the integrated structure and the first fixing part are both made of metal materials. The bottom of the first fixing part and the bottom of the second fixing part are each provided with a concave inverted-U-shaped clamping groove, and the first fixing part and the second fixing part are detachably connected with the screen part through the corresponding inverted-U-shaped clamping grooves. And the inverted U-shaped clamping groove is connected with the corresponding end part of the screen part through a locking screw.

Description

Technical Field

[0001] The utility model relates to a ball making machine, belonging to steel production equipment, and in particular to a U-shaped screen device of the ball making machine. Background Art

[0002] Ball making machines are mainly used in steel enterprises to make powdered or fine-grained materials into spheres of certain shapes and sizes, which are usually used in subsequent smelting processes. The U-type screen is used to grade and screen the initially produced pellets, remove unqualified large and small particles, and ensure that qualified pellets and coke balls enter the smelting process.

[0003] At present, the coke hot strength pelletizing machines used in steel mills produce a large number of pellets on average every day, and about 10 pelletizing machines are required to work at the same time. The working time of the pelletizing machines is as long as 12 hours, which causes the U-shaped screen plates used in the pelletizing machines to wear out quickly.

[0004] After one week of normal use (about 50 samples), the rubber gasket of the U-shaped screen accessory of the original factory screen plate was broken and fell off by the coke, causing some coke blocks to fall into the trolley, seriously affecting the quality and efficiency of ball making. Therefore, this original factory-configured ball making machine U-shaped screen cannot meet the production and use requirements of the steel plant. An improved ball making machine U-shaped screen device is needed to overcome the above problems encountered in production. Summary of the invention

[0005] The utility model aims at the defects of the prior art and proposes a U-shaped screen device for a ball making machine, which achieves the purpose of extending the service life of the ball making machine and reducing the maintenance cost.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical scheme, including a screen part and a screen fixing part arranged at both ends of the screen part: the fixing part one is connected to the first end of the screen part, and the fixing part two is connected to the second end of the screen part; a gasket part is arranged on the top of the fixing part two (the two are connected by rubber coating); an axial ear part for connecting to a ball making machine is arranged on the outer side of each screen fixing part; the gasket part and the fixing part two form an integrated structure, and the integrated structure and the fixing part one are both made of metal.

[0007] The bottom of the fixing part 1 and the fixing part 2 are each provided with an inwardly concave inverted U-shaped clamping groove, and the fixing part 1 and the fixing plate 2 are detachably connected to the screen part through their respective inverted U-shaped clamping grooves; the inverted U-shaped clamping grooves are connected to the corresponding ends of the screen part through locking screws.

[0008] Furthermore, the end of the screen portion extends into the corresponding inverted U-shaped clamping groove, and the corresponding locking screws connect the two together.

[0009] Furthermore, the gasket portion is connected to the second fixing portion by welding.

[0010] Furthermore, the fixing portion 1 and the integrated structure are both made of 304 stainless steel or tungsten carbide.

[0011] Compared with the prior art, the utility model has beneficial effects.

[0012] The utility model adopts a split design of the U-shaped screen for the ball making machine, and the screen part is separated from the fixing parts on both sides. In this way, the screen part of the U-shaped screen can be directly replaced after being worn, which can save costs and is more convenient to replace.

[0013] At the same time, metal structures are used for both the fixing plate 1 and the fixing plate 2, so that the service life of the structure is longer than that of the rubber structure used in the past. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods. The protection scope of the utility model is not limited to the following descriptions.

[0015] Figure 1 It is a schematic diagram of the structure of a U-shaped screen device of a ball making machine in the prior art;

[0016] Figure 2 It is a schematic diagram of a prior art U-shaped screen installed on a ball making machine;

[0017] Figure 3 It is a schematic structural diagram of a U-shaped screen device of a ball making machine in an embodiment.

[0018] In the figure, 1 is the feed port, 2 is the upper machine, 3 is the middle machine, 4 is the base, 5 is the drive motor, 6 is the belt, 7 is the axis 1, 8 is the axis 2, 9 is the U-shaped screen, 10 is the ball making device, 11 is the rubber connection, and 12 is the screen fixing part;

[0019] 901 is the fixing part 1, 902 is the fixing part 2, 903 is the shaft ear 1, 904 is the shaft ear 2, 905 is the locking screw, 906 is the inverted U-shaped clamping groove, 907 is the screen part, 908 is the gasket part, and 909 is the shaft ear part. DETAILED DESCRIPTION

[0020] In order to better understand the technical solution of the present utility model, a specific implementation plan is provided as follows; and the following scheme is only for illustration.

[0021] like Figure 1 As shown, the existing U-shaped screen 9 configured by the original factory has screen fixing parts 12 on both sides of the screen part 907, and a rubber gasket is arranged above the screen fixing part 12 on one side, and the rubber gasket is connected to the screen fixing part 12 of the vehicle by rubber coating, and an axle ear part 909 is arranged on the outer side of each of the two screen fixing parts 12.

[0022] like Figure 2As shown, when the existing U-shaped screen 9 is installed on the ball making machine, the positions and installation relationships of the feed port 1, the upper platforms, the middle platform 3 and the ball making device 10 and the U-shaped screen 9 are shown; wherein, the shaft ear portion 909 includes a shaft ear 1 903 and a shaft ear 2 904. During installation, the shaft ear 1 903 is fixed to the upper platform 2 through the shaft 1 7, and the shaft ear 2 904 is fixed to the upper platform 2 through the shaft 2 8. Specifically, the shaft 1 7 is fixed to the upper platform 2 after passing through the shaft ear 1 903, and the shaft 2 8 is fixed to the upper platform 2 after passing through the shaft ear 2 904; and the shaft ear 1 903 and the shaft ear 2 904 can rotate with the corresponding shafts.

[0023] The utility model actually disassembles the ball making machine to observe its movement process, measures the high and low position data of the ball making machine rotating with the main shaft, and proposes an improved U-shaped screen 9 structure, thereby achieving the purpose of extending its service life and reducing maintenance costs.

[0024] Example: Figure 3 As shown, the U-shaped screen 9 device of the ball making machine includes a screen part 907 and a screen fixing part 12 arranged at both ends of the screen part 907: the fixing part 1 901 is connected to the first end of the screen part 907, and the fixing part 2 902 is connected to the second end of the screen part 907; a gasket part 908 is arranged on the top of the fixing part 2 902, and the two are connected by rubber coating; generally, the gasket part 908 adopts a rubber gasket. Each screen fixing part 12 is provided with an axial ear part 909 for connecting to the ball making machine on the outside. And the fixing part 1 901 and the fixing part 2 902 both adopt a fixed plate, that is, a plate-like structure.

[0025] The gasket portion 908 and the second fixing portion 902 form an integrated structure, and the integrated structure and the fixing portion 1 901 are both made of metal. Specifically, the fixing portion 1 901 and the integrated structure are made of 304 stainless steel or tungsten carbide. The bottom of the fixing portion 1 901 and the fixing portion 2 902 are each provided with a concave inverted U-shaped clamping groove 906, and the fixing portion 1 901 and the fixing plate 2 are detachably connected to the screen portion 907 through their respective inverted U-shaped clamping grooves 906; the corresponding ends of the inverted U-shaped clamping grooves 906 and the screen portion 907 are connected through locking screws 905. Among them, the specific installation and connection of the shaft ear portion 909 and the U-shaped screen 9 and the ball making machine refer to the connection of the existing U-shaped screen 9, which will not be repeated here.

[0026] Connecting the U-shaped clamping groove to the screen by means of locking screws 905 enables:

[0027] 1. Stability: The inverted U-shaped clamping groove can provide stable support and fixation for the screen, prevent the screen from shifting when the ball making machine vibrates or when the screen is stressed, and maintain its stable operating state throughout the working cycle. It can also ensure that the screen remains in a safe and stable working state under high-speed operation and heavy load of the ball making machine, reducing the safety hazards caused by failures such as screen shedding. At the same time, the use of an inverted U-shaped clamping groove to fix the screen avoids the damage to the screen aperture that may be caused by direct bolt connection, and reduces the risk of wear and deformation of the screen during installation.

[0028] 2. Convenient installation and disassembly: The use of locking screws 905 is convenient for quick installation and replacement of the screen. When you need to clean the blocked material, replace the worn screen or adjust the size of the screen hole, you only need to loosen the screws to easily disassemble and assemble, which greatly improves the maintenance efficiency.

[0029] 3. Adaptability: The inverted U-shaped clamping groove can be customized according to different sizes and types of screens. Together with the locking screw 905, it can achieve good adaptation to screens of various specifications, enhancing the versatility and flexibility of the equipment.

[0030] 4. Uniform force: The inverted U-shaped clamping groove can evenly disperse the pressure on the screen, avoid damage or deformation of the screen due to excessive local force, and extend the service life of the screen.

[0031] 5. Accurate positioning: The locking screw 905 can ensure that the position of the screen in the U-shaped clamping groove is accurate, which is beneficial to ensure screening accuracy and production quality.

[0032] 6. Cost saving: This connection method is relatively simple and low-cost, which reduces the manufacturing cost caused by complex structure and reduces the cost of subsequent maintenance and replacement.

[0033] Preferably, the end of the screen portion 907 extends into the corresponding inverted U-shaped clamping groove 906, and the corresponding locking screw 905 connects the two together.

[0034] Preferably, the gasket portion 908 is welded to the second fixing portion 902. As a preferred embodiment, the second fixing portion 902 can also be modified, deformed and lengthened, so that the outer contour of the improved integrated structure is the same as the outer contour of the original second fixing portion 902 + the original gasket portion 908.

[0035] Specifically, the utility model removes the rubber gasket of the existing U-shaped screen 9, and replaces it with a wear-resistant gasket of other materials of corresponding size or designs a steel plate of suitable size to be directly connected to the U-shaped screen 9. The modified U-shaped screen 9 has a very stable use effect, and the coke blocks no longer fall into the trolley, and there is no need to frequently open the ball making machine case to replace the rubber gasket.

[0036] Introduction to the use and working process of the ball making machine U-type screen 9 device:

[0037] After the coke pellets are manually introduced into the pelletizing machine from the feed port 1, the coarse carbon powder is pressed by rollers. The pelletizing machine is usually composed of a group of rotating rollers, and the rollers are driven by a motor through a belt to form a dense grid of rollers.

[0038] In the U-shaped screen 9 , the coke pellets are formed into pellets. During this process, the U-shaped screen 9 and the coke pellets are in contact with each other, causing the U-shaped screen 9 to be worn.

[0039] When the U-shaped screen 9 is severely worn, the locking screw 905 can be manually opened, the screen part 907 of the U-shaped screen 9 can be replaced, and then fixed.

[0040] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some or all of the technical features thereof may be replaced by equivalents. Therefore, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope defined by the claims of the present invention.

Claims

1. A U-shaped screen device for a ball making machine, comprising a screen part and screen fixing parts arranged at both ends of the screen part: the fixing part 1 connected to the first end of the screen part is the fixing part 1, and the fixing part 2 connected to the second end of the screen part is the fixing part 2; a gasket part is arranged on the top of the fixing part 2; each screen fixing part is arranged on the outer side with an axle ear part for connecting with the ball making machine; Features: The gasket portion and the second fixing portion form an integrated structure, and the integrated structure and the first fixing portion are both made of metal; The bottom of the fixing part 1 and the fixing part 2 are each provided with an inwardly concave inverted U-shaped clamping groove, and the fixing part 1 and the fixing plate 2 are detachably connected to the screen part through their respective inverted U-shaped clamping grooves; the inverted U-shaped clamping grooves are connected to the corresponding ends of the screen part through locking screws.

2. A U-shaped screen device for a ball making machine according to claim 1, characterized in that: The end of the screen part extends into the corresponding inverted U-shaped clamping groove, and the corresponding locking screw connects the two together.

3. A U-shaped screen device for a ball making machine according to claim 1, characterized in that: The gasket portion is connected to the second fixing portion by welding.

4. A U-shaped screen device for a ball making machine according to claim 1, characterized in that: The fixing portion 1 and the integrated structure are both made of 304 stainless steel or tungsten carbide.

Images