Double-slot polyurethane self-cleaning screen plate

Abstract

The utility model discloses a double -card slot polyurethane self -cleaning screen plate, including screen plate, fixed frame and protection frame, the screen plate is fastened in the fixed frame, the bottom outside milling chamfer of fixed frame is convenient for the fixed frame fastening in the protection frame, the screen plate includes screen sheet, support subassembly and cleaning subassembly, the support subassembly sets up screen sheet's downside and is convenient for the support screen sheet upwards, the cleaning subassembly sets up screen sheet's upside and is symmetrical with support subassembly, the cleaning subassembly is triangular structure and is convenient for cleaning sundries. The utility model discloses long rib board, short rib board bottom end outside milling chamfer, and the outside interval of long rib board and short rib board is equipped with the hanging strip, realizes the split guiding effect when pouring polyurethane, increases long rib board, short rib board and polyurethane's contact area, has improved the coating strength of polyurethane to fixed frame, has effectively reduced the risk of fixed frame falling off in the coal -washing process.

Description

Technical Field

[0001] This utility model relates to the field of vibrating machinery and equipment, and in particular to a double-slot polyurethane self-cleaning screen plate. Background Technology

[0002] In the field of coal washing and preparation, polyurethane screen plates are generally used. Screen plates are the core product for separating coal from impurities. Screen plates are composed of polyurethane, long stiffeners, short stiffeners, intermediate vertical plates, and screen mesh. In existing screen plates, polyurethane is directly cast on the outside of the long stiffeners and short stiffeners, resulting in insufficient coating strength of polyurethane on the long stiffeners and short stiffeners. The long stiffeners and short stiffeners are prone to detach from the polyurethane. When the screen mesh is used for screening, hairy impurities in the coal flow are easy to get entangled in the screen gaps, causing the screen mesh to become clogged and affecting the service life of the screen plate. Therefore, it is necessary to design a self-cleaning screen plate. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a double-slot polyurethane self-cleaning screen plate. The bottom outer edges of the long and short ribs of this utility model are chamfered, and hanging strips are provided at intervals on the outer edges of the long and short ribs. This enables the polyurethane to be poured with a diversion and guiding function, increases the contact area between the long and short ribs and the polyurethane, improves the covering strength of the polyurethane on the fixed frame, and effectively reduces the risk of the fixed frame falling off during the coal washing process.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is: a double-slot polyurethane self-cleaning screen plate, comprising a screen plate, a fixing frame, and a protective frame. The screen plate is fastened within the fixing frame. The bottom outer side of the fixing frame is chamfered to facilitate fastening the fixing frame within the protective frame. The screen plate includes a screen mesh, a support assembly, and a cleaning assembly. The support assembly is located on the lower side of the screen mesh to facilitate upward support of the screen mesh. The cleaning assembly is located on the upper side of the screen mesh and is symmetrical to the support assembly. The cleaning assembly has a triangular structure to facilitate cleaning debris.

[0005] Preferably, the support assembly includes a plurality of elastic rods, which are spaced apart along the length or width of the screen sheet.

[0006] Preferably, the cleaning assembly includes a plurality of cleaning rods, each cleaning rod being an equilateral triangular rod. The number of cleaning rods is the same as the number of elastic rods, and the length of each cleaning rod is the same as the length of the elastic rod. The position of each cleaning rod corresponds to the position of the elastic rod.

[0007] Preferably, the fixing frame includes long ribs, short ribs, and hanging strips. There are multiple hanging strips. There are two long ribs and two short ribs. The two long ribs are arranged facing each other, and the two short ribs are arranged facing each other. The end of each long rib is fastened to the end of the adjacent short rib to form a square structure. Hanging strips are provided at intervals on the outer sides of the long ribs and short ribs.

[0008] Preferably, the inner side of the short stiffener is provided with a snap-fit ​​groove along the length direction to facilitate snap-fitting of the screen sheet. The upper and lower sides of the snap-fit ​​groove are respectively provided with a plurality of first snap-fit ​​holes and a plurality of second snap-fit ​​holes, and the plurality of first snap-fit ​​holes and the plurality of second snap-fit ​​holes are respectively spaced apart along the length direction of the short stiffener.

[0009] Preferably, the outer bottom end of each of the long and short stiffeners is chamfered.

[0010] Preferably, the hanging strip is "ear" shaped to facilitate the hanging of material during polyurethane pouring.

[0011] Preferably, the long stiffeners, short stiffeners, and hanging strips are all made of Q345 steel.

[0012] Preferably, the elastic rod and the cleaning rod are both made of SUS304 steel, and the screen is made of SUS201 steel.

[0013] This utility model has the following advantages compared with the prior art:

[0014] 1. The bottom outer edges of the long and short stiffeners of this utility model are chamfered, and hanging strips are provided at intervals on the outer edges of the long and short stiffeners. This enables the polyurethane to be poured in a diversion and guiding role, increases the contact area between the long and short stiffeners and the polyurethane, improves the covering strength of the polyurethane on the fixed frame, and effectively reduces the risk of the fixed frame falling off during the coal washing process.

[0015] 2. This utility model provides an equilateral triangular cleaning rod on the upper side of the screen mesh, and places the cleaning rod on the upper side of the elastic rod. The cleaning rod prevents hairy debris generated during coal washing from getting tangled in the screen gaps or the elastic rod, thereby extending the service life of the screen mesh and improving the screening efficiency of the product.

[0016] 3. The short stiffener plate of this utility model is provided with a snap-fit ​​groove on the inner side. The two ends of the screen sheet are snapped into the snap-fit ​​groove and the screen sheet is welded to the snap-fit ​​groove, which improves the stability of the connection between the screen sheet and the short stiffener plate.

[0017] 4. The lower side of the snap-fit ​​groove of this utility model is provided with a second snap-fit ​​hole. The two ends of the elastic rod along the length direction are respectively embedded in the opposite second snap-fit ​​holes. The elastic rod is welded to the second snap-fit ​​hole, which improves the support strength of the elastic rod.

[0018] 5. The upper side of the snap-fit ​​groove of this utility model is provided with a first snap-fit ​​hole. The two ends of the cleaning rod along the length direction are respectively embedded in the first snap-fit ​​hole facing each other, and the cleaning rod is welded to the first snap-fit ​​hole, which improves the connection strength between the cleaning rod and the short stiffener and extends the service life of the screen plate.

[0019] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of this utility model;

[0021] Figure 2 This is a structural diagram of the back of the fixing frame of this utility model;

[0022] Figure 3 This is a structural schematic diagram of the front of the fixing frame of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1—Sieve plate; 2—Fixed frame; 3—Protective frame;

[0025] 4—Screen mesh; 5—Elastic rod; 6—Cleaning rod;

[0026] 7—Long stiffener plate; 8—Short stiffener plate; 9—Hanging strip;

[0027] 10—Card slot. Detailed Implementation

[0028] like Figures 1 to 3 As shown, this utility model discloses a double-slot polyurethane self-cleaning screen plate, including a screen plate 1, a fixing frame 2, and a protective frame 3. The screen plate 1 is fastened inside the fixing frame 2. The bottom outer side of the fixing frame 2 is chamfered to facilitate the fastening of the fixing frame 2 inside the protective frame 3. The screen plate 1 includes a screen mesh 4, a support assembly, and a cleaning assembly. The support assembly is located on the lower side of the screen mesh 4 to facilitate upward support of the screen mesh 4. The cleaning assembly is located on the upper side of the screen mesh 4 and is symmetrical to the support assembly. The cleaning assembly has a triangular structure to facilitate the cleaning of debris.

[0029] In this embodiment, the screen plate 1 is a square screen plate, and the fixed frame 2 matches the shape of the screen plate 1, which facilitates the screen plate 1 to be fastened and welded in the fixed frame 2. The cleaning component is located on the upper side of the screen sheet 4, and the bottom edge of the triangular structure of the cleaning component is welded to the surface of the screen sheet 4. The support component is located on the lower side of the screen sheet 4. The fixed frame 2 is placed in the mold, and polyurethane is poured along the side of the fixed frame 2 to form a protective frame 3. The fixed frame 2 is then fastened in the protective frame 3. During operation, the screen plate 1 vibrates with the screen machine, and the cleaning component located on the screen sheet 4 vibrates synchronously. The inclined side of the triangular structure of the cleaning component blocks and cuts the debris, preventing hairy impurities from entering the screen gap of the screen sheet 4 or getting caught on the support component, which would cause the screen sheet 4 to become clogged.

[0030] The support assembly includes a plurality of elastic rods 5, which are spaced apart along the length or width of the screen sheet 4.

[0031] In this embodiment, the elastic rod 5 is a cylindrical rod, and the length of the elastic rod 5 is consistent with the length of the screen sheet 4. Multiple elastic rods 5 are spaced apart along the width direction of the screen sheet 4. The side of the elastic rod 5 that contacts the screen sheet 4 is welded to the screen sheet 4 to improve the supporting effect of the elastic rod 5 on the screen sheet 4.

[0032] In another possible embodiment, unlike the above embodiment, the length of the elastic rod 5 is consistent with the width of the screen sheet 4, and multiple elastic rods 5 are spaced apart along the length direction of the screen sheet 4.

[0033] The cleaning assembly includes multiple cleaning rods 6, each of which is an equilateral triangular rod. The number of cleaning rods 6 is the same as the number of elastic rods 5, and the length of each cleaning rod 6 is the same as the length of each elastic rod 5. The position of each cleaning rod 6 corresponds to the position of each elastic rod 5.

[0034] In this embodiment, the bottom edge of the cleaning rod 6 is welded to the screen plate 4. During coal washing, hairy debris gets caught on the cleaning rod 6. Since the cleaning rod 6 is an equilateral triangular rod, the hypotenuse of the cleaning rod 6 can easily block the hairy debris generated during the coal washing process, thus preventing the debris from getting caught on the elastic rod 5 and causing the screen plate 4 to become clogged.

[0035] In another possible embodiment, unlike the above embodiment, the cleaning rod 6 has a serrated structure. While blocking hairy debris, the cleaning rod 6 can also cut the coal block, thereby improving the screening efficiency of the product.

[0036] The fixed frame 2 includes long stiffeners 7, short stiffeners 8, and hanging strips 9. There are multiple hanging strips 9. There are two long stiffeners 7 and two short stiffeners 8. The two long stiffeners 7 are arranged facing each other, and the two short stiffeners 8 are arranged facing each other. The end of each long stiffener 7 is fastened to the end of the adjacent short stiffener 8 to form a square structure. Hanging strips 9 are provided at intervals on the outer sides of the long stiffeners 7 and the short stiffeners 8.

[0037] The inner side of the short stiffener 8 is provided with a snap-fit ​​groove 10 along the length direction to facilitate snap-fitting of the screen sheet 4. The upper and lower sides of the snap-fit ​​groove 10 are respectively provided with a plurality of first snap-fit ​​holes and a plurality of second snap-fit ​​holes, and the plurality of first snap-fit ​​holes and the plurality of second snap-fit ​​holes are respectively spaced along the length direction of the short stiffener 8.

[0038] In this embodiment, the snap-fit ​​groove 10 is located in the middle of the short stiffener 8 along its width direction. The first snap-fit ​​hole is located on the upper side of the snap-fit ​​groove 10, and the second snap-fit ​​hole is located on the lower side of the snap-fit ​​groove 10. Multiple first snap-fit ​​holes and multiple second snap-fit ​​holes are arranged facing each other and spaced apart on both sides of the snap-fit ​​groove 10. After snapping the two ends of the screen sheet 4 into the facing snap-fit ​​grooves 10, the screen sheet 4 is welded to the snap-fit ​​groove 10 and the short stiffener 8 respectively. After snapping the two ends of the elastic rod 5 along its length direction into the facing second snap-fit ​​holes, the end of the elastic rod 5 is welded to the second snap-fit ​​hole and the short stiffener 8. The elastic rod 5 is then welded to the screen sheet along its length direction. The side of the cleaning rod 6 that is in contact with the screen plate 4 is welded to the screen plate 4; the top corner of the cleaning rod 6 is away from the screen plate 4. After the two ends of the cleaning rod 6 along the length direction are respectively snapped into the first snapping holes facing each other, the end of the cleaning rod 6 is welded to the first snapping hole and the short stiffener 8. The side of the cleaning rod 6 that is in contact with the screen plate 4 along the length direction is welded to the screen plate 4. During coal washing, the hairy debris will hang on the inclined side of the cleaning rod 6. When coal flows along the cleaning rod 6, the coal block rubs against the hairy debris hanging on the cleaning rod 6, causing the hairy debris to break and fall into the screen through the screen gap with the coal flow, thus extending the service life of the screen plate 1.

[0039] In another possible embodiment, unlike the above embodiment, the first and second locking holes are both provided on the long stiffener 7. The inner sidewalls of the opposing long stiffeners 7 are respectively provided with the first and second locking holes on the upper and lower sides of the screen sheet 4. The elastic rod 5 is welded to the screen sheet 4 and the second locking hole and is parallel to the short stiffener 8. The cleaning rod 6 is welded to the screen sheet 4 and the first locking hole and is parallel to the short stiffener 8. There is a cleaning rod 6 on the upper side of each elastic rod 5. Each elastic rod 5 is on the same plane as the cleaning rod 6 on its upper side. The elastic rod 5 is used to support the screen sheet 4 upward, and the cleaning rod 6 is used to clean hairy debris.

[0040] The bottom outer side of each of the long stiffeners 7 and short stiffeners 8 is chamfered.

[0041] The hanging strip 9 is "ear" shaped to facilitate the hanging of material during polyurethane pouring.

[0042] In this embodiment, the long stiffeners 7 and short stiffeners 8 form the outer frame of the fixed frame 2. Multiple hanging strips 9 are spaced apart on the outside of the long stiffeners 7 and short stiffeners 8. When the fixed frame 2 is placed in the mold and polyurethane is poured, the long stiffeners 7 and short stiffeners 8 have milled chamfers on their bottom outer sides, which increases the contact area between the long stiffeners 7 and short stiffeners 8 and the polyurethane. Moreover, the "ear"-shaped hanging strips 9 increase the contact area between the polyurethane and the fixed frame 2, thereby improving the strength of the polyurethane-coated fixed frame 2 and effectively reducing the risk of the fixed frame 2 falling off during the coal washing process.

[0043] The long stiffener plate 7, short stiffener plate 8, and hanging strip 9 are all made of Q345 steel.

[0044] Both the elastic rod 5 and the cleaning rod 6 are made of SUS304 steel, and the screen plate 4 is made of SUS201 steel.

[0045] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the present utility model. Any simple modifications, alterations, or equivalent structural transformations made to the above embodiments based on the technical essence of the present utility model shall still fall within the protection scope of the present utility model.

Claims

1. A double-slot polyurethane self-cleaning screen plate, characterized in that: The device includes a sieve plate (1), a fixing frame (2), and a protective frame (3). The sieve plate (1) is fastened to the fixing frame (2). The bottom outer side of the fixing frame (2) is chamfered to facilitate the fastening of the fixing frame (2) to the protective frame (3). The sieve plate (1) includes a screen sheet (4), a support component, and a cleaning component. The support component is located on the lower side of the screen sheet (4) to facilitate the upward support of the screen sheet (4). The cleaning component is located on the upper side of the screen sheet (4) and is symmetrical to the support component. The cleaning component has a triangular structure to facilitate the cleaning of debris.

2. The double-slot polyurethane self-cleaning screen plate according to claim 1, characterized in that: The support assembly includes a plurality of elastic rods (5), which are spaced apart along the length or width of the screen sheet (4).

3. A double-slot polyurethane self-cleaning screen plate according to claim 2, characterized in that: The cleaning assembly includes multiple cleaning rods (6), each cleaning rod (6) being an equilateral triangular rod. The number of cleaning rods (6) is the same as the number of elastic rods (5), and the length of each cleaning rod (6) is the same as the length of the elastic rod (5). The position of each cleaning rod (6) corresponds to the position of the elastic rod (5).

4. A double-slot polyurethane self-cleaning screen plate according to claim 1, characterized in that: The fixed frame (2) includes long stiffeners (7), short stiffeners (8) and hanging strips (9). There are multiple hanging strips (9). There are two long stiffeners (7) and two short stiffeners (8). The two long stiffeners (7) are arranged facing each other, and the two short stiffeners (8) are arranged facing each other. The end of each long stiffener (7) is fastened to the end of the adjacent short stiffener (8) to form a square structure. Hanging strips (9) are provided at intervals on the outer sides of the long stiffeners (7) and the short stiffeners (8).

5. A double-slot polyurethane self-cleaning screen plate according to claim 4, characterized in that: The inner side of the short stiffener (8) is provided with a snap-fit ​​groove (10) along the length direction to facilitate snap-fitting of the screen sheet (4). The upper and lower sides of the snap-fit ​​groove (10) are respectively provided with a plurality of first snap-fit ​​holes and a plurality of second snap-fit ​​holes. The plurality of first snap-fit ​​holes and the plurality of second snap-fit ​​holes are respectively arranged at intervals along the length direction of the short stiffener (8).

6. A double-slot polyurethane self-cleaning screen plate according to claim 4, characterized in that: The bottom outer side of each of the long stiffeners (7) and short stiffeners (8) is chamfered.

7. A double-slot polyurethane self-cleaning screen plate according to claim 4, characterized in that: The hanging strip (9) is "ear" shaped to facilitate the hanging of material when pouring polyurethane.

8. A double-slot polyurethane self-cleaning screen plate according to claim 4, characterized in that: The long stiffener plate (7), short stiffener plate (8) and hanging strip (9) are all made of Q345 steel.

9. A double-slot polyurethane self-cleaning screen plate according to claim 3, characterized in that: The elastic rod (5) and the cleaning rod (6) are both made of SUS304 steel, and the screen plate (4) is made of SUS201 steel.

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