Drum type screening device

Abstract

The utility model provides a drum-type screening device. The drum-type screening device comprises a mounting frame, a drum screen, a blanking box, a conveying belt, a baffle and a fixing assembly. According to the drum-type screening device, the installation frame is arranged, and the drum screen, the conveying belt and the discharging box are sequentially arranged on the installation frame from top to bottom. The rotary screen is used for filtering powder and filtering qualified powder onto the conveying belt, and when the powder cannot fall onto the conveying belt or overflows from the two sides of the conveying belt, the powder can fall into the blanking box and slide like the bottommost part of the blanking box through the inclined plane at the bottom of the blanking box. The discharging port is formed in the bottommost portion of the discharging box, the baffle is hinged to the discharging port, the baffle can cover the discharging port through the fixing assembly, powder falling into the discharging box can be collected in a centralized mode by opening the baffle, the situation that the powder is overstocked excessively, and consequently equipment halt is caused is avoided, and meanwhile waste of the powder can be reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of drum screens, and in particular relates to a drum type screening device. Background Art

[0002] After being crushed, the waste insulation materials are mixed into the materials for producing decorative panels in a certain proportion, and decorative panels are produced through the decorative panel production process. The thermal insulation performance of the decorative panels can be improved to a certain extent. At the same time, the effect of waste utilization can be achieved. However, the waste insulation materials will still be mixed with larger debris after being crushed, and further filtering and treatment are required before they can be used. At present, conventional filtering equipment usually uses a drum screen, and in order to improve the material conveying efficiency, a conveyor belt will be installed at the bottom of the drum screen to facilitate the timely delivery of the screened powder to the designated location. However, during use, the powder is easy to fall between the conveyor belts through the drum, and the powder that falls out of the conveyor belt is not easy to collect and process, which easily causes equipment shutdown maintenance and waste of powder. Utility Model Content

[0003] The utility model provides a drum-type screening device in an embodiment, aiming to solve the problem in the prior art that powder screened by the drum-type screening device is inconvenient to collect and process after it leaves the conveyor belt.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a drum-type screening device, comprising:

[0005] Mounting frame;

[0006] A drum screen is rotatably arranged on the mounting frame, and the axis of the drum screen is arranged at an angle to the horizontal direction;

[0007] A material drop box is installed at the bottom of the drum screen, the bottom of the material drop box is an inclined surface that forms an angle with the horizontal plane, and a material drop opening is arranged at the bottom end of the material drop box;

[0008] A conveyor belt is installed below the drum screen, and a feeding end of the conveyor belt is located inside the blanking box;

[0009] A baffle, hingedly arranged at the bottom of the blanking box and located at the blanking opening, for blocking the blanking opening;

[0010] A fixing assembly is arranged between the baffle plate and the blanking box and is used for fixing the baffle plate at the blanking opening.

[0011] In a possible implementation, a groove is formed at the bottom of the material drop box, the material drop opening is located inside the groove, and a limiting plate for abutting against the bottom of the groove is installed on the baffle.

[0012] In a possible implementation, the fixing component includes:

[0013] A sleeve, fixedly mounted on the bottom of the blanking box;

[0014] A latch is inserted in the sleeve, and when the baffle cover is arranged at the blanking opening, the latch can be pressed against the bottom of the baffle.

[0015] In a possible implementation, a limit rod is bent at one end of the pin, and a limit sleeve coaxially arranged with the sleeve is fixedly installed at the bottom of the blanking box, a groove for avoiding the limit rod is provided on one side of the limit sleeve, and a gap for accommodating the limit rod is provided between the limit sleeve and the sleeve.

[0016] In a possible implementation, a guide plate is obliquely provided on the side wall of the blanking box, one side of the guide plate is fixedly mounted on the side wall of the blanking box, and the other side is located above the conveyor belt.

[0017] In a possible implementation, a plurality of support rollers are rotatably provided on the mounting frame, the plurality of support rollers are spaced apart along the length direction of the conveyor belt, and the support rollers are supported on the lower side of the conveyor belt to prevent the conveyor belt from being deformed.

[0018] In a possible implementation, a beating shaft is rotatably provided on the top of the drum screen, the axis of the beating shaft is arranged parallel to the axis of the drum screen, and a beating sheet for beating the drum screen is fixedly installed on the outer side of the beating shaft.

[0019] In a possible implementation, the beating shaft and the rotating shaft of the drum screen are arranged to transmit to each other.

[0020] Compared with the prior art, the scheme shown in the embodiment of the present application is provided with a mounting frame, on which a drum screen, a conveyor belt and a material drop box are sequentially arranged from top to bottom. The length direction of the material drop box is arranged along the length direction of the conveyor belt, and the ground of the conveyor belt and the material drop box are arranged to be gradually inclined upward along the conveying direction of the conveyor belt. The drum screen is used to filter powder and filter qualified powder onto the conveyor belt. When the powder cannot fall onto the conveyor belt or overflows from both sides of the conveyor belt, it will fall into the inside of the material drop box and slide to the bottom of the material drop box through the inclined surface at the bottom of the material drop box. A material drop port is provided at the bottom of the material drop box, and a baffle is hingedly provided at the material drop port. The baffle can be covered at the material drop port by a fixed component, and the powder that falls into the inside of the material drop box can be collected by opening the baffle to avoid excessive accumulation of powder and cause equipment shutdown, and reduce the waste of powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure of a drum-type screening device provided in an embodiment of the utility model;

[0022] Figure 2 A schematic diagram of the structure of a fixing assembly provided in an embodiment of the utility model;

[0023] Figure 3 A schematic diagram of the installation structure of the guide plate provided in an embodiment of the utility model.

[0024] Description of reference numerals:

[0025] 1. Mounting frame; 2. Drum screen; 3. Blanking box; 31. Guide plate; 4. Conveyor belt; 41. Support roller; 5. Baffle; 51. Limit plate; 6. Fixing assembly; 61. Sleeve; 62. Latch; 621. Limit rod; 63. Limit sleeve; 7. Beating shaft; 71. Beating piece. DETAILED DESCRIPTION

[0026] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0027] Please also read Figures 1 to 3 , the drum-type screening device provided by the utility model is now described. The drum-type screening device comprises a mounting frame 1, a drum screen 2, a blanking box 3, a conveyor belt 4, a baffle 5 and a fixing assembly 6. The drum screen 2 is rotatably arranged on the mounting frame 1, and the axis of the drum screen 2 is arranged at an angle with the horizontal direction; the blanking box 3 is installed at the bottom of the drum screen 2, and the bottom of the blanking box 3 is an inclined surface that is at an angle with the horizontal plane, and a blanking port is arranged at the bottom of the blanking box 3; the conveyor belt 4 is installed below the drum screen 2, and the feeding end of the conveyor belt 4 is located inside the blanking box 3; the baffle 5 is hingedly arranged at the bottom of the blanking box 3, and is located at the blanking port, for blocking the blanking port; the fixing assembly 6 is arranged between the baffle 5 and the blanking box 3, for fixing the baffle 5 at the blanking port.

[0028] Compared with the prior art, the drum-type screening device provided in this embodiment is provided with a mounting frame 1, on which a drum screen 2, a conveyor belt 4 and a material box 3 are sequentially arranged from top to bottom. The length direction of the material box 3 is arranged along the length direction of the conveyor belt 4, and the ground of the conveyor belt 4 and the material box 3 are gradually inclined upward along the conveying direction of the conveyor belt 4. The drum screen 2 is used to filter the powder and filter the qualified powder onto the conveyor belt 4. When the powder cannot fall onto the conveyor belt 4 or overflows from both sides of the conveyor belt 4, it will fall into the inside of the material box 3 and slide to the bottom of the material box 3 through the inclined surface at the bottom of the material box 3. A material drop opening is provided at the bottom of the material box 3, and a baffle 5 is hingedly provided at the material drop opening. The baffle 5 can be covered at the material drop opening by a fixing component 6, and the powder falling into the inside of the material box 3 can be collected by opening the baffle 5 to avoid the shutdown of the equipment caused by excessive accumulation of powder, and at the same time reduce the waste of powder.

[0029] In some embodiments, the above-mentioned blanking box 3 can be used as follows Figure 2 See the structure shown. Figure 2 , a groove is concavely provided at the bottom of the blanking box 3, the blanking opening is located inside the groove, and a limiting plate 51 is installed on the baffle 5 for abutting against the bottom of the groove. A groove is concavely provided at the bottom of the blanking box 3, the blanking opening is located inside the groove, and a limiting plate 51 is fixedly installed on the edge of the baffle 5 by bolts or welding, and one side of the limiting plate 51 extends out of the baffle 5 setting. In this embodiment, the baffle 5 can be rotated into the blanking opening and fit on the inner wall of the blanking opening. The position of the baffle 5 is then limited by the limiting plate 51 abutting against the ground of the groove. The setting of the groove and the limiting plate 51 can prevent the powder from falling from the gap between the baffle 5 and the blanking opening, and ensure that the dust is collected inside the blanking box 3.

[0030] In some embodiments, the fixing assembly 6 may be configured as follows: Figure 2 See the structure shown. Figure 2 The fixing assembly 6 includes a sleeve 61 and a latch 62. The sleeve 61 is fixedly mounted at the bottom of the blanking box 3; the latch 62 is inserted inside the sleeve 61. When the baffle 5 is covered at the blanking port, the latch 62 can abut against the bottom of the baffle 5. The sleeve 61 is fixedly mounted at the bottom of the blanking box 3. The sleeve 61 is located on one side of the blanking port, and the mouth of the sleeve 61 is arranged toward the blanking port. When the latch 62 is inserted into the sleeve 61, one end of the latch 62 passes through the sleeve 61 and extends outward from one end of the sleeve 61 to the blanking port. When the baffle 5 is covered at the blanking port, the latch 62 can abut against the bottom of the baffle 5 to prevent the baffle 5 from flipping downward. When it is necessary to open the cover, the latch 62 is pulled to disengage the baffle 5, so that the baffle 5 can be opened to discharge the powder inside the blanking box 3.

[0031] Preferably, in this embodiment, the number of the latches 62 is at least two, and the plurality of latches 62 are evenly arranged on the outer side of the baffle 5 .

[0032] Preferably, in this embodiment, an elastic rubber strip is provided between the limit plate 51 and the bottom of the groove, and the latch pin 62 abuts against the limit plate 51. When the limit plate 51 is located inside the groove, the elastic rubber strip is used to achieve sealing between the limit plate 51 and the groove, and at the same time can push the limit plate 51 so that the limit plate 51 can always abut against the latch pin 62.

[0033] In some embodiments, the fixing assembly 6 may be configured as follows: Figure 2 See the structure shown. Figure 2 , a limit rod 621 is bent at one end of the latch 62, and a limit sleeve 63 coaxially arranged with the sleeve 61 is fixedly installed at the bottom of the blanking box 3. A clearance groove for avoiding the limit rod 621 is arranged on one side of the limit sleeve 63, and a gap for accommodating the limit rod 621 is arranged between the limit sleeve 63 and the sleeve 61. A limit rod 621 is bent at one end of the latch 62 away from the blanking port, and the limit rod 621 and the latch 62 are arranged perpendicular to each other. A limit sleeve 63 is arranged on the outer side of one end of the sleeve 61 away from the blanking port, and the limit sleeve 63 is fixedly installed at the bottom of the blanking box 3. A clearance groove for avoiding the movement of the limit rod 621 is opened on one side of the limit sleeve 63 along the horizontal direction. When in use, the limit rod 621 can be aligned with the clearance groove by rotating the latch 62, so that the latch 62 can slide inside the sleeve 61. When the limiting rod 621 moves to between the sleeve 61 and the limiting sleeve 63 , the limiting rod 621 automatically maintains a downwardly extending state due to its own gravity, thereby being stuck between the sleeve 61 and the limiting sleeve 63 to prevent the latch 62 from sliding inside the sleeve 61 .

[0034] In some embodiments, the above-mentioned blanking box 3 can be used as follows Figure 3 See the structure shown. Figure 3 A guide plate 31 is obliquely arranged on the side wall of the blanking box 3, one side of the guide plate 31 is fixedly mounted on the side wall of the blanking box 3, and the other side is located above the conveyor belt 4. A guide plate 31 is obliquely arranged inside the blanking box 3, and guide plates 31 are arranged on both sides of the drum screen 2. The guide plate 31 is located below the drum screen 2, and the side of the bottom end of the guide plate 31 is located in the middle of the conveyor belt 4, which can guide the falling powder to be transported to the middle of the conveyor belt 4, reduce the powder falling on the conveyor belt 4, and improve the collection rate of the powder.

[0035] In some embodiments, the mounting frame 1 may be used as follows: Figure 1 See the structure shown. Figure 1A plurality of support rollers 41 are also rotatably provided on the mounting frame 1. The plurality of support rollers 41 are arranged at intervals along the length direction of the conveyor belt 4. The support rollers 41 are supported on the lower side of the conveyor belt 4 to prevent the conveyor belt 4 from deforming. A driving roller is rotatably provided on the mounting frame 1. The driving roller is driven to rotate by a motor. A driven roller is also rotatably provided on the mounting frame 1. The driven roller is spaced apart from the driving roller. The conveyor belt 4 is wound between the driving roller and the driven roller. The conveyor belt 4 is driven to move by the rotation of the driving roller.

[0036] Specifically, in this embodiment, the support roller 41 is supported on the lower side of the upper half of the conveyor belt 4 .

[0037] Preferably, in this embodiment, the support roller 41 is located between the driving roller and the driven roller. And the multiple support rollers 41 are all against the bottom of the upper section of the conveyor belt 4, used to support the conveyor belt 4 to prevent the conveyor belt 4 from deforming and causing the powder on the conveyor belt 4 to fall into the blanking box 3. And the outer diameter of the middle part of the support roller 41 is smaller than the size of the two ends of the support roller 41. The height of the two ends of the conveyor belt 4 can be made higher than the height of the middle part to prevent the powder from falling off.

[0038] In some embodiments, the drum screen 2 may be used as follows: Figure 1 See the structure shown. Figure 1 The top of the drum screen 2 is also rotatably provided with a beating shaft 7, the axis of which is parallel to the axis of the drum screen 2, and a beating sheet 71 for beating the drum screen 2 is fixedly installed on the outside of the beating shaft 7. The beating shaft 7 and the drum screen 2 are arranged parallel to each other in the vertical direction. In addition, a plurality of large beating sheets are installed on the outside of the beating shaft 7. When the drum screen 2 is in the working state, the beating shaft 7 can rotate to drive the beating sheets 71 on the outside of the beating shaft 7 to beat on the outside of the drum screen 2, thereby realizing the vibration of the drum screen 2, reducing the blockage of the screen holes on the drum screen 2, and improving the working efficiency of the drum screen 2.

[0039] In some embodiments, the beating shaft 7 may be Figure 1 See the structure shown. Figure 1 The beating shaft 7 and the rotating shaft of the drum screen 2 are mutually driven. The beating shaft 7 and the rotating shaft of the drum screen 2 are arranged in parallel with each other, and pulleys are installed at the ends of the beating shaft 7 and the drum screen 2, and the transmission connection between the beating shaft 7 and the drum screen 2 is realized through the pulleys. In order to achieve the effect of transmission connection between the drum screen 2 and the beating shaft 7. The same motor can be used to drive the drum screen 2 and the beating shaft 7 to rotate synchronously.

[0040] Preferably, in this embodiment, the outer diameter of the pulley on the beating shaft 7 is smaller than the outer diameter of the pulley on the rotating shaft of the drum screen 2 .

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A drum screening device, It is characterized in that include: Mounting frame (1); A drum screen (2) is rotatably mounted on the mounting frame (1), wherein the axis of the drum screen (2) is arranged at an angle to the horizontal direction; A material drop box (3) is installed at the bottom of the drum screen (2); the bottom of the material drop box (3) is an inclined surface that forms an angle with the horizontal plane; and a material drop opening is provided at the bottom end of the material drop box (3); A conveyor belt (4) is installed below the drum screen (2), and a feed end of the conveyor belt (4) is located inside the blanking box (3); A baffle (5) is hingedly arranged at the bottom of the blanking box (3) and located at the blanking opening, and is used to block the blanking opening; A fixing assembly (6) is arranged between the baffle plate (5) and the blanking box (3) and is used to fix the baffle plate (5) at the blanking opening.

2. The drum screening device according to claim 1, It is characterized in that The bottom of the blanking box (3) is provided with a groove, the blanking opening is located inside the groove, and a limiting plate (51) for abutting against the bottom of the groove is installed on the baffle plate (5).

3. The drum screening device according to claim 1, It is characterized in that The fixing assembly (6) comprises: A sleeve (61) is fixedly mounted on the bottom of the blanking box (3); The latch (62) is inserted into the sleeve (61), and when the baffle (5) is covered at the drop opening, the latch (62) can abut against the bottom of the baffle (5).

4. The drum screening device according to claim 3, It is characterized in that A limiting rod (621) is bent at one end of the latch pin (62), and a limiting sleeve (63) coaxially arranged with the sleeve (61) is fixedly mounted at the bottom of the blanking box (3), a clearance groove for avoiding the limiting rod (621) is arranged on one side of the limiting sleeve (63), and a gap for accommodating the limiting rod (621) is arranged between the limiting sleeve (63) and the sleeve (61).

5. The drum screening device according to claim 1, It is characterized in that A guide plate (31) is obliquely arranged on the side wall of the blanking box (3); one side of the guide plate (31) is fixedly mounted on the side wall of the blanking box (3), and the other side is located above the conveyor belt (4).

6. The drum type screening device according to claim 1, It is characterized in that A plurality of support rollers (41) are also rotatably arranged on the mounting frame (1), and the plurality of support rollers (41) are arranged at intervals along the length direction of the conveyor belt (4). The support rollers (41) are supported on the lower side of the conveyor belt (4) to prevent the conveyor belt (4) from being deformed.

7. The drum screening device according to claim 1, It is characterized in that A beating shaft (7) is rotatably arranged on the top of the drum screen (2), the axis of the beating shaft (7) is arranged parallel to the axis of the drum screen (2), and a beating sheet (71) for beating the drum screen (2) is fixedly installed on the outer side of the beating shaft (7).

8. The drum screening device according to claim 7, It is characterized in that The beating shaft (7) and the rotating shaft of the drum screen (2) are arranged to transmit to each other.

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