Chromium slag screening and crushing device

By designing an adjustable and fixed movable screening structure, the problem of inconvenient material discharge in existing chromium slag screening devices has been solved, achieving efficient screening and stability, and improving the practicality and convenience of the device.

CN223819077UActive Publication Date: 2026-01-23YUNNAN YANCHENG TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202423280072.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-30
Publication Date
2026-01-23
Estimated Expiration
2034-12-30

AI Technical Summary

Technical Problem

Existing chromium slag screening devices are inconvenient for material discharge, have poor practicality, and suffer from low screening efficiency due to fixed supports.

Method used

A chromium slag screening and crushing device was designed, which adopts an adjustable and fixed movable screening structure. The chromium slag screening basket is driven to rotate by a rotary drive motor, and the material is efficiently fed and discharged through the cooperation of the tightening screw and the telescopic rod. The stability and convenience are improved by combining the constraint rollers and the handle frame.

Benefits of technology

It enables more efficient screening operations for material input and output, improves the practicality and stability of the equipment, avoids dust pollution, and enhances the reliability and convenience of the equipment.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of chromium slag treatment, in particular to a chromium slag screening and crushing device which is provided with a movable grain cooking screening structure capable of being adjusted in an offset manner and fixed, is more efficient in feeding, discharging and screening operation of materials, and improves practicability. Comprising a fixed base, a supporting frame, constraint sleeves, a movable shaft, an outer frame, a rotary driving motor, a chromium slag screening basket, a hinge frame, a hinge shaft, a hinge block, a sliding pipe, a telescopic rod, a jacking screw sleeve, a jacking screw rod and a jacking screwing handle, the outer side of the middle of the top end of the fixed base is connected with the bottom end of the supporting frame, and the two ends of the upper side of the interior of the supporting frame are movably connected with the outer side of the movable shaft through the constraint sleeves; the inner ends of the two movable shafts are connected with the middles of the left side and the right side of the outer frame respectively, the outer ends of the sliding pipe and the telescopic rod are connected to the hinge blocks respectively, the middle upper portion of the rear side of the sliding pipe is communicated with the inner side of the jacking screw sleeve, the inner wall of the jacking screw sleeve is in threaded connection with the outer wall of the jacking screw rod, and the outer end of the jacking screw rod is connected with the middle of the inner side of the jacking screwing handle.
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Description

Technical Field

[0001] This utility model relates to the technical field of chromium slag treatment, specifically to a chromium slag screening and crushing device. Background Technology

[0002] Chromium slag is an industrial waste generated during the production of metallic chromium and chromium salts. It poses certain hazards to humans. Chromium slag is an industrial waste produced during the production of metallic chromium and chromium salts. Currently, more than 20 provinces and cities in China discharge chromium slag.

[0003] An existing sieving device, such as the one with patent publication number CN218610284U, adopts a rotary sieving method. This sieving method facilitates the discharge of larger particles during sieving, and allows for further grinding and pulverization of the larger particles. Furthermore, it avoids dust generation during sieving, thus preventing environmental pollution and demonstrating strong practicality.

[0004] However, due to its fixed support, it is inconvenient for material discharge and has poor practicality. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides a chromium slag screening and crushing device with a movable screening structure that can be offset and fixed, which makes the material feeding, screening and operation more efficient and improves its practicality.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a chromium slag screening and crushing device, comprising a fixed base, a support frame, a constraint sleeve, a movable shaft, an outer frame, a rotary drive motor, a chromium slag screening basket, a hinge frame, a hinge shaft, a hinge block, a slide tube, a telescopic rod, a tightening screw sleeve, a tightening screw, and a tightening handle. The outer side of the top center of the fixed base is connected to the bottom end of the support frame. The two ends of the upper side of the support frame are movably connected to the outer side of the movable shaft via the constraint sleeve. The inner ends of the two sets of movable shafts are respectively connected to the middle of the left and right sides of the outer frame. The middle of the rear side of the outer frame is connected to the rotary drive motor. The inner end of the rotary drive motor is connected to the output end of the rotary drive motor and the middle of the rear end of the chromium slag screening basket. A set of hinge frames is connected to the lower middle side of the rear end of the outer frame and the middle rear side of the top of the fixed base. The inner side of the hinge frame is movably connected to the middle of the outer side of the hinge block via the hinge shaft. The output end of the slide tube is slidably connected to the outer side of the telescopic rod. The outer ends of the slide tube and the telescopic rod are respectively connected to a set of hinge blocks. The upper middle part of the rear side of the slide tube is connected to the inner side of the tightening screw sleeve. The inner wall of the tightening screw sleeve is screwed to the outer wall of the tightening screw rod. The outer end of the tightening screw rod is connected to the middle of the inner side of the tightening handle.

[0007] Preferably, it also includes wheel frames and constraint rollers. Multiple sets of wheel frames are evenly arranged inside the front ring side of the outer frame. Each set of wheel frames has a set of constraint rollers rotatably arranged inside. The constraint rollers are movably connected to the front of the outer side of the chromium slag screening basket.

[0008] Preferably, it also includes a grip frame and a grip sleeve, wherein the top rear side of the outer frame is connected to the bottom end of the grip frame, and a grip sleeve is fitted onto the outer side of the grip frame.

[0009] Preferably, it also includes an information board, with the upper left side of the support frame connected to the inner side of the information board.

[0010] Preferably, it also includes grease nipples, with a set of grease nipples respectively provided at the middle of the top of each set of constraint sleeves, and the output end of the grease nipple is connected to the contact point between the constraint sleeve and the movable shaft.

[0011] Preferably, it also includes an oil filling cap, wherein the outer side of the oil filling nozzle and the inner side of the oil filling cap are detachably installed.

[0012] Compared with the prior art, this utility model provides a chromium slag screening and crushing device, which has the following beneficial effects:

[0013] The entire device is supported by a fixed base. When the tightening screw is in the loosened state of the telescopic rod, the outer frame can be rotated under the constraint of the constraint sleeve. The hinge blocks are constrained by the hinge shafts in the two sets of hinge frames, allowing the telescopic rod to slide inside the slide tube and shift accordingly to adapt to the change in the orientation of the outer frame, facilitating material feeding and discharging. The rotary drive motor drives the chromium slag screening basket to rotate and screen the internal chromium slag. When the outer frame needs to be fixed in a certain position, the tightening handle can be turned to rotate the tightening screw. The tightening screw, through its screw engagement with the tightening screw sleeve, acts inward to tighten the telescopic rod on the outside. The outer frame is fixed through the fixed connection of the slide tube, telescopic rod, two sets of hinge frames, hinge shafts, and hinge blocks, and through the connection of the support frame, constraint sleeve, and movable shaft. The device features a movable screening structure that can be offset, adjusted, and fixed, making the material feeding, discharging, and screening operations more efficient and improving its practicality. Attached Figure Description

[0014] Figure 1 This is an axial view illustrating the structure of this utility model.

[0015] Figure 2 This utility model Figure 1 Rear view;

[0016] Figure 3 This utility model Figure 1 The left view;

[0017] Figure 4 This utility model Figure 1 The top view.

[0018] The following are labels in the attached diagram: 1. Fixed base; 2. Support frame; 3. Constraint sleeve; 4. Movable shaft; 5. Outer frame; 6. Rotary drive motor; 7. Chromium slag screening basket; 8. Hinge frame; 9. Hinge shaft; 10. Hinge block; 11. Slide tube; 12. Telescopic rod; 13. Tightening screw sleeve; 14. Tightening screw; 15. Tightening handle; 16. Wheel frame; 17. Constraint roller; 18. Handle frame; 19. Handle cover; 20. Information board; 21. Oil nozzle; 22. Oil cap. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Example

[0020] Please see Figure 1-4A chromium slag screening and crushing device includes a fixed base 1, a support frame 2, a constraint sleeve 3, a movable shaft 4, an outer frame 5, a rotary drive motor 6, a chromium slag screening basket 7, a hinge frame 8, a hinge shaft 9, a hinge block 10, a sliding tube 11, a telescopic rod 12, a tightening screw sleeve 13, a tightening screw 14, and a tightening handle 15. The outer side of the top center of the fixed base 1 is connected to the bottom end of the support frame 2. The upper two ends of the inner side of the support frame 2 are movably connected to the outer side of the movable shaft 4 via the constraint sleeve 3. The inner ends of the two sets of movable shafts 4 are respectively connected to the left and right sides of the outer frame 5. The outer frame 5 is connected to the inner end of the rotary drive motor 6 at the rear middle. The output end of the rotary drive motor 6 is connected to the rear middle of the chromium slag screening basket 7. A set of hinge frames 8 are connected to the lower rear middle of the outer frame 5 and the upper rear middle of the fixed base 1 respectively. The inner side of the hinge frame 8 is movably connected to the outer middle of the hinge block 10 via the hinge shaft 9. The output end of the slide tube 11 is slidably connected to the outer side of the telescopic rod 12. The outer ends of the slide tube 11 and the telescopic rod 12 are respectively connected to a set of hinge blocks 10. The upper rear middle part of the slide tube 11 is connected to the top. The inner side of the screw sleeve 13 is connected, and the inner wall of the tightening screw sleeve 13 is screwed to the outer wall of the tightening screw rod 14. The outer end of the tightening screw rod 14 is connected to the middle of the inner side of the tightening handle 15. The entire device is supported by the fixed base 1. When the tightening screw rod 14 is in the loosened state of the telescopic rod 12, the outer frame 5 can be rotated under the constraint of the constraint sleeve 3 by the two sets of movable shafts 4. The hinge block 10 is constrained by the hinge shaft 9 in the two sets of hinge frames 8, so that the telescopic rod 12 slides inside the slide tube 11 and is offset accordingly to adapt to the position of the outer frame 5. The mechanism allows for easy feeding and discharging of materials. The rotating drive motor 6 rotates the chromium slag screening basket 7 to screen the chromium slag inside. When the outer frame 5 needs to be fixed in a certain position, the tightening handle 15 can be turned to rotate the tightening screw 14. The tightening screw 14, through its screw engagement with the tightening screw sleeve 13, acts inward to tighten the outer side of the telescopic rod 12. The outer frame 5 is fixed through the fixed connection of the slide tube 11, the telescopic rod 12, and two sets of hinge frames 8, hinge shafts 9, and hinge blocks 10, and through the connection of the support frame 2, the constraint sleeve 3, and the movable shaft 4.

[0021] It also includes wheel frames 16 and constraint rollers 17. Multiple sets of wheel frames 16 are evenly arranged on the front ring side inside the outer frame 5. Each set of wheel frames 16 has a set of constraint rollers 17 rotatably arranged on its inner side. The constraint rollers 17 are movably connected to the front part of the outer side of the chromium slag screening basket 7. When the chromium slag screening basket 7 rotates, the multiple sets of wheel frames 16 can act on the constraint rollers 17 to provide movable support for the chromium slag screening basket 7, thereby improving its stability.

[0022] It also includes a grip frame 18 and a grip sleeve 19. The top middle rear side of the outer frame 5 is connected to the bottom end of the grip frame 18, and the grip sleeve 19 is sleeved on the outside of the grip frame 18. By gripping the grip sleeve 19, the outer frame 5 can be moved and shifted through the grip frame 18, thereby improving convenience.

[0023] It also includes an information board 20, with the upper left side of the support frame 2 connected to the inside of the information board 20; the information board 20 can display information about the device, making it easier to read and use, and improving convenience.

[0024] It also includes an oil injection nozzle 21. Each set of constraint sleeves 3 is provided with an oil injection nozzle 21 at the middle of its top. The output end of the oil injection nozzle 21 is connected to the contact point between the constraint sleeve 3 and the movable shaft 4. Oil can be injected into the inner wall of the constraint sleeve 3 through the oil injection nozzle 21 for convenient lubrication and maintenance.

[0025] It also includes an oil filling cap 22, and the outer side of the oil filling nozzle 21 and the inner side of the oil filling cap 22 can be detachably installed; after the oil filling cap 22 is installed on the outer side of the oil filling nozzle 21, the inside of the oil filling nozzle 21 can be sealed and protected, improving reliability.

[0026] In summary, when a chromium slag screening and crushing device is in use, the entire device is supported by a fixed base 1. When the tightening screw 14 is in the loosened state of the telescopic rod 12, the outer frame 5 can be moved and offset via the grip sleeve 19 and the grip frame 18. This allows the outer frame 5 to rotate under the constraint of the constraint sleeve 3 by two sets of movable shafts 4, and the hinge block 10 is constrained by the hinge shaft 9 inside the two sets of hinge frames 8, so that the telescopic rod 12 slides inside the slide tube 11 and is offset accordingly to adapt to the change in the orientation of the outer frame 5, facilitating material feeding and discharging. The rotary drive motor 6 drives the chromium slag screening basket 7 to rotate and screen the chromium slag inside. When the chromium slag screening basket 7 rotates, multiple sets of wheel frames 16 can act on the constraint rollers 17 to screen the chromium slag. The slag screening basket 7 has a movable support. When the outer frame 5 needs to be fixed in a certain position, the tightening handle 15 can be turned to rotate the tightening screw 14. The tightening screw 14, through its screw engagement with the tightening sleeve 13, acts inward to tighten the outer side of the telescopic rod 12. The outer frame 5 is fixed through the fixed connection of the slide tube 11, the telescopic rod 12, the two sets of hinge frames 8, the hinge shaft 9, and the hinge block 10, and through the connection of the support frame 2, the constraint sleeve 3, and the movable shaft 4. In addition, the information board 20 can display the information of this device for easy reading and auxiliary use. The inner wall of the constraint sleeve 3 can be injected with oil through the oil injection nozzle 21 for easy lubrication and maintenance. After installing the oil injection cap 22 on the outside of the oil injection nozzle 21, the inside of the oil injection nozzle 21 can be sealed and protected to improve reliability.

[0027] This rotary drive motor 6 is a commercially available device known to those skilled in the art. We are simply using it here without making any structural or functional improvements, and we will not go into detail about it here.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A chromium slag screening and crushing device, characterized in that, The system includes a fixed base (1), a support frame (2), a constraint sleeve (3), a movable shaft (4), an outer frame (5), a rotary drive motor (6), a chromium slag screening basket (7), a hinge frame (8), a hinge shaft (9), a hinge block (10), a slide tube (11), a telescopic rod (12), a tightening screw sleeve (13), a tightening screw (14), and a tightening handle (15). The top middle outer side of the fixed base (1) is connected to the bottom end of the support frame (2). The upper two ends of the support frame (2) are movably connected to the outer side of the movable shaft (4) via the constraint sleeve (3). The inner ends of the two sets of movable shafts (4) are respectively connected to the middle of the left and right sides of the outer frame (5). The middle of the rear side of the outer frame (5) is connected to the inner end of the rotary drive motor (6). The output end of the drive motor (6) is connected to the middle of the rear end of the chromium slag screening basket (7). The lower rear end of the outer frame (5) is connected to the middle and rear top of the fixed base (1) with a set of hinge frames (8). The inner side of the hinge frame (8) is movably connected to the middle of the outer side of the hinge block (10) via the hinge shaft (9). The output end of the slide tube (11) is slidably connected to the outer side of the telescopic rod (12). The outer ends of the slide tube (11) and the telescopic rod (12) are respectively connected to a set of hinge blocks (10). The upper rear side of the slide tube (11) is connected to the inner side of the tightening sleeve (13). The inner wall of the tightening sleeve (13) is screwed to the outer wall of the tightening screw (14). The outer end of the tightening screw (14) is connected to the middle of the inner side of the tightening handle (15).

2. The chromium slag screening and crushing device according to claim 1, characterized in that: It also includes wheel frames (16) and constraint rollers (17). Multiple sets of wheel frames (16) are evenly arranged on the front ring side inside the outer frame (5). Each set of wheel frames (16) is rotatably arranged with a set of constraint rollers (17) on the inner side. The constraint rollers (17) are movably connected to the front of the outer side of the chromium slag screening basket (7).

3. The chromium slag screening and crushing device according to claim 1, characterized in that: It also includes a grip frame (18) and a grip sleeve (19), the top rear side of the outer frame (5) is connected to the bottom end of the grip frame (18), and the grip frame (18) is fitted with a grip sleeve (19) on the outside.

4. The chromium slag screening and crushing device according to claim 1, characterized in that: It also includes an information board (20), the upper left side of the support frame (2) being connected to the inner side of the information board (20).

5. The chromium slag screening and crushing device according to claim 1, characterized in that: It also includes an oil nozzle (21), and each set of the constraint sleeve (3) has an oil nozzle (21) in the middle of its top. The output end of the oil nozzle (21) is connected to the contact point between the constraint sleeve (3) and the movable shaft (4).

6. A chromium slag screening and crushing device according to claim 5, characterized in that: It also includes an oil filling cap (22), the outer side of the oil filling nozzle (21) and the inner side of the oil filling cap (22) can be detachably installed.