Improved blanking chute of raw coal desliming screen

Abstract

The utility model relates to an improved blanking chute of a raw coal desliming screen, and belongs to the technical field of blanking chutes. The discharging belt conveys materials to the left side, the upper face, the lower face and the right side face of the box body are open, the two sets of screen frames are distributed up and down, the right sides of the screen frames are open, a plurality of sets of supporting legs are fixedly connected below the discharging belt, and side plates are fixedly connected to the front side and the rear side above the discharging belt. According to the utility model, elastic acting force for rightward movement of the C-shaped frame can be given through the elastic piece to ensure that the roller and the cam are always in a contact state, and at the moment, the C-shaped frame and the screen frame can be driven by the driving assembly to reciprocate along the guide rail path, so that the purpose of reciprocating shaking of the screen is achieved, and materials are convenient to screen; and the materials are prevented from blocking the screen. When materials fall onto the screen mesh, the screen mesh can screen the materials, due to the fact that the fixing frame is obliquely arranged, the materials on the screen mesh can gradually slide to the right side in the shaking process, and therefore automatic discharging is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of blanking chutes, in particular to an improved blanking chute for a raw coal de-sludging screen. Background Art

[0002] A raw coal de-sludging screen is a device used to remove soil and other impurities from raw coal. During the coal processing process, raw coal often contains certain impurities such as soil, limestone, calcite, limestone, and clay. In order to improve the quality and purity of coal, it is necessary to carry out de-sludging treatment on raw coal. A blanking chute is also used in conjunction with the raw coal de-sludging screen to receive materials.

[0003] After retrieval, the utility model patent with the publication number CN216779354U discloses an improved blanking chute for a raw coal de-sludging screen. Through the mutual cooperation of a base, a hydraulic cylinder, a hydraulic rod, a support box, a limiting plate, a frame, a filter screen, a fixing block, and a lifting ring, the device has a filtering function, which is convenient for screening treatment, convenient for increasing the filtering of blanking items, convenient for sorting raw coal, and has stronger practicability. However, the filter screen used to filter coal slag in this device is in a static state, its filtering effect is relatively poor, and it is prone to blockage. Secondly, when the coal on the filter screen reaches a certain capacity, manual unloading is required, which is time-consuming and laborious. Summary of the Utility Model

[0004] To solve the above technical problems, the utility model provides an improved blanking chute for a raw coal de-sludging screen.

[0005] The technical solution of the utility model is as follows:

[0006] An improved blanking chute for a raw coal de-sludging screen, comprising a blanking belt for conveying materials to the left, a box body with openings on the upper, lower, and right sides, and two groups of screen frames distributed vertically and opening on the right side. A plurality of support legs are fixedly connected below the blanking belt. The front and rear sides above the blanking belt are fixedly connected with side plates. The left sides of the two groups of side plates form a blanking port. The box body is fixedly connected to the upper ends of the two groups of side plates. Two groups of fixing frames distributed vertically are fixedly connected inside the box body, and the fixing frames are inclined. The fixing frame includes two groups of guide rails, the guide rails are fixedly connected to the front and rear inner walls of the box body. A square seat is fixedly provided in the middle of the left sides of the two groups of guide rails. A C-shaped frame is slidably connected in the middle of the two groups of guide rails. An installation groove is opened on the right side of the square seat. A plurality of elastic members are connected inside the installation groove, and the right sides of the elastic members are connected to the left side of the C-shaped frame. A driving component for driving the C-shaped frame to move to the left is connected to the front side of the C-shaped frame. The screen frame is fixed inside the C-shaped frame by bolts, and a screen is fixedly connected to the inside of the screen frame;

[0007] A front side wall of the box body is penetrated and provided with an outer sliding groove, and a front side of the guide rail located at the front side is penetrated and provided with an inner sliding groove. The outer sliding groove is communicated with the inner sliding groove. The driving assembly includes a square plate and a support rod. The square plate is fixedly connected to the front side of the C-shaped frame, and the support rod is fixedly connected to the front side of the square plate. L-shaped connecting rods are fixedly connected to both the left and right sides of the support rod. One end of the L-shaped connecting rod far from the support rod is fixedly connected to the square plate. The support rod penetrates through the inner sliding groove and the outer sliding groove and extends to the outside of the box body. The support rod is slidably connected to the inside of the inner sliding groove and the outer sliding groove. A roller is rotatably connected to the outside of the support rod and on the front side of the box body. A shaft rod is rotatably connected to the front side wall of the box body and on the right side of the outer sliding groove. A cam is fixedly connected to the outside of the shaft rod. The front end of the shaft rod located below is connected to a reduction motor through a coupling. A support seat is fixedly provided on the front side of the feeding belt through bolts, and a fixing seat for fixing the reduction motor is fixedly connected to the upper surface of the support seat. The two shaft rods are connected through a synchronizing member

[0008] Optionally, baffles are fixedly provided on the right sides of the two side plates through bolts.

[0009] Optionally, a C-shaped top plate for blocking the gap between the fixed frame and the C-shaped frame is fixedly connected to the upper surface of the C-shaped frame. A support frame for supporting the screen is fixedly connected to the inside of the C-shaped frame. Pulleys are rotatably connected to both the front and rear sides of the C-shaped frame through short shafts, and the pulleys are slidably connected to the inside of the guide rail.

[0010] Optionally, a feeding plate is fixedly provided on the right side of the support frame through bolts.

[0011] Optionally, the elastic member includes a sleeve and a sliding rod. The right side of the sleeve is fixedly connected to the left side of the C-shaped frame. The left end of the sliding rod is fixedly connected to a circular seat, and the circular seat is fixedly connected to the left side inside the installation groove. The sleeve and the sliding rod are slidably connected to each other. A spring is sleeved on the outside of the sliding rod. The left end of the spring is fixedly connected to the right side of the circular seat, and the right end of the spring is fixedly connected to the left side of the sleeve.

[0012] Optionally, the synchronizing member includes two synchronizing wheels and one synchronizing belt. The two synchronizing wheels are respectively fixedly connected to the outside of the two shaft rods, and the synchronizing belt is sleeved on the outside of the two synchronizing belts.

[0013] Optionally, a plurality of guide plates are fixedly connected to the front and rear sides inside the screen frame and on the upper surface of the screen. The guide plates are inclined towards the right side. Handles are fixedly provided on the front and rear sides of the upper surface of the screen frame through bolts.

[0014] All the above optional technical solutions can be arbitrarily combined, and the present utility model does not elaborate on the structures after combination one by one.

[0015] With the above solutions, the beneficial effects of the present utility model are as follows:

[0016] 1. Through the elastic member, the present utility model can apply an elastic force to move the C-shaped frame to the right, ensuring that the roller is always in contact with the cam. At this time, the driving assembly can drive the C-shaped frame and the screen frame to reciprocate along the guide rail path, thereby achieving the purpose of reciprocatingly shaking the screen, facilitating the screening of materials, and preventing materials from clogging on the screen.

[0017] 2. When the material falls onto the screen, the screen will screen it. Since the fixed frame is inclined, the material on the screen will gradually slide to the right during the shaking process, thus realizing automatic feeding.

[0018] The above description is only an overview of the technical solution of the present utility model. In order to better understand the technical means of the present utility model and implement it according to the content of the specification, the following provides a detailed description of the preferred embodiments of the present utility model in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall external structure of the improved blanking chute of the raw coal slime screen provided by the present utility model from one perspective;

[0020] Figure 2 It is a schematic diagram of the overall external structure of the improved blanking chute of the raw coal slime screen provided by the present utility model from another perspective;

[0021] Figure 3 It is a front sectional view of the improved blanking chute of the raw coal slime screen provided by the present utility model;

[0022] Figure 4 It is a right sectional view of the improved blanking chute of the raw coal slime screen provided by the present utility model;

[0023] Figure 5 It is an exploded structure diagram of the improved blanking chute of the raw coal slime screen provided by the present utility model;

[0024] Figure 6 It is a schematic diagram of the structure of the box body and the fixed frame in the present utility model in cooperation;

[0025] Figure 7 It is an exploded structure diagram of the fixed frame, C-shaped frame and screen frame in the present utility model;

[0026] Figure 8 It is an exploded structure diagram of the C-shaped frame and some of its connecting components in the present utility model;

[0027] Figure 9 It is an exploded structure diagram of the elastic member in the present utility model;

[0028] Figure 10 This is a schematic structural diagram of the cooperation of some components of the drive assembly in the present utility model.

[0029] Reference numerals in the figure: 1, blanking belt; 11, support legs; 12, support seats; 13, fixed seats; 2, side plates; 21, blanking opening; 22, baffle; 3, box body; 31, outer chute; 4, fixed frame; 41, guide rails; 411, inner chute; 42, square seat; 421, installation groove; 5, C-shaped frame; 51, C-shaped top plate; 52, support frame; 53, blanking plate; 54, pulleys; 6, elastic members; 61, sleeves; 62, sliding rods; 621, circular seats; 63, springs; 7, drive assembly; 71, square plate; 72, support rods; 721, L-shaped connecting rods; 73, rollers; 74, shaft rods; 75, cams; 76, reduction motors; 77, synchronizing members; 771, synchronizing wheels; 772, synchronizing belts; 8, screen frame; 81, screen; 82, diversion plate; 83, handle. Specific embodiments

[0030] The following combines the accompanying drawings and embodiments to further describe in detail the specific embodiments of the present utility model. The following embodiments are used to illustrate the present utility model, but are not used to limit the scope of the present utility model.

[0031] Please refer to Figures 1-10 , the present utility model provides an improved blanking chute for raw coal desliming screens, including a blanking belt 1 for conveying materials to the left, a box body 3 with openings on the upper, lower and right sides, and two groups of screen frames 8 distributed up and down and open on the right side. A plurality of support legs 11 are fixedly connected below the blanking belt 1. Both the front and rear sides above the blanking belt 1 are fixedly connected with side plates 2. The left sides of the two groups of side plates 2 form a blanking opening 21. The box body 3 is fixedly connected to the upper ends of the two groups of side plates 2. Two groups of fixed frames 4 are fixedly connected inside the box body 3 and are arranged obliquely. The fixed frame 4 includes two groups of guide rails 41. The guide rails 41 are fixedly connected to the front and rear inner walls of the box body 3. A square seat 42 is fixedly provided in the middle of the left sides of the two groups of guide rails 41. A C-shaped frame 5 is slidably connected between the two groups of guide rails 41. An installation groove 421 is opened on the right side of the square seat 42. A plurality of elastic members 6 are connected inside the installation groove 421. The right sides of the elastic members 6 are connected to the left side of the C-shaped frame 5. The front side of the C-shaped frame 5 is connected with a drive assembly 7 for driving the C-shaped frame 5 to move to the left direction. The screen frame 8 is fixed inside the C-shaped frame 5 by bolts. A screen 81 is fixedly connected inside the screen frame 8;

[0032] A front side wall of the box body 3 is penetrated and provided with an outer sliding groove 31. A front side of the guide rail 41 located at the front side is penetrated and provided with an inner sliding groove 411. The outer sliding groove 31 communicates with the inner sliding groove 411. The driving assembly 7 includes a square plate 71 and a support rod 72. The square plate 71 is fixedly connected to the front side of the C-shaped frame 5. The support rod 72 is fixedly connected to the front side of the square plate 71. Both left and right sides of the support rod 72 are fixedly connected with L-shaped connecting rods 721. One end of the L-shaped connecting rod 721 away from the support rod 72 is fixedly connected to the square plate 71. The support rod 72 penetrates through the inner sliding groove 411 and the outer sliding groove 31 and extends to the outside of the box body 3. The support rod 72 is slidably connected to the inside of the inner sliding groove 411 and the outer sliding groove 31. A roller 73 is rotatably connected to the outside of the support rod 72 and on the front side of the box body 3. A shaft rod 74 is rotatably connected to the front side wall of the box body 3 and on the right side of the outer sliding groove 31. A cam 75 is fixedly connected to the outside of the shaft rod 74. The front end of the lower shaft rod 74 is connected to a reduction motor 76 through a coupling. A support seat 12 is fixedly provided on the front side of the feeding belt 1 through bolts. A fixing seat 13 for fixing the reduction motor 76 is fixedly connected to the upper surface of the support seat 12. The two shaft rods 74 are connected through a synchronizing member 77.

[0033] Wherein, conveyor belts can be installed on the right sides of the two sets of screen meshes 81 to transport the materials falling from the screen meshes 81.

[0034] The utility model drives the C-shaped frame 5 and the screen frame 8 to reciprocate along the path of the guide rail 41 through the driving assembly 7. The function of the elastic member 6 is to give the C-shaped frame 5 an elastic force to move to the right side, ensuring that the roller 73 and the cam 75 are always in contact, so as to achieve the purpose of reciprocatingly shaking the screen mesh 81, facilitating the screening of materials, and at the same time preventing the materials from clogging on the screen mesh 81. When the materials fall onto the screen mesh 81, the screen mesh 81 will screen them. Since the fixed frame 4 is inclined, the materials on the screen mesh 81 will gradually slide to the right side during the shaking process, thus realizing automatic feeding. The materials falling onto the feeding belt 1 will be conveyed to the left side along with the operation of the feeding belt 1 and finally discharged from the discharge port 21.

[0035] Specifically, the inclination angle of the fixed frame 4 can be set within the range of 3 degrees to 10 degrees. The purpose of such setting is to ensure that the materials will not accumulate on the screen mesh 81 during the screening process, but will slide to the right by themselves along with the shaking of the screen mesh 81, thus realizing automatic feeding. Secondly, an appropriate inclination angle can give the materials sufficient screening time (if the inclination angle of the fixed frame 4 is too large, the materials falling onto the screen mesh 81 will slide off from the right side before being effectively screened).

[0036] Specific driving process of the driving component 7: The reduction motor 76 drives a set of lower shaft rods 74 to rotate through the output shaft, and a set of lower shaft rods 74 drives another set of upper shaft rods 74 to rotate synchronously through the synchronizing member 77. At this time, the two sets of shaft rods 74 will simultaneously drive the outer cam 75 to rotate. Affected by the elastic member 6, the roller 73 will always be in contact with the cam 75. When the cam 75 rotates, the roller 73 will drive the support rod 72 to slide along the paths of the inner chute 411 and the outer chute 31, and then the support rod 72 drives the square plate 71, the C-shaped frame 5, the screen frame 8, the screen 81 and the materials in the screen 81 to reciprocate along the direction of the guide rail 41.

[0037] Specifically, the L-shaped connecting rods 721 on the left and right sides of the support rod 72 can strengthen the structure of the support rod 72 and the square plate 71.

[0038] Furthermore, baffles 22 are fixedly provided on the right sides of the two side plates 2 by bolts.

[0039] Specifically, when the materials fall from the lower screen 81 onto the blanking belt 1, the blanking belt 1 will drive the materials to be conveyed to the left, and the baffle 22 can block the right side of the blanking belt 1 to prevent the materials from falling from the right side of the blanking belt 1 during the falling process.

[0040] Furthermore, a C-shaped top plate 51 for blocking the gap between the fixed frame 4 and the C-shaped frame 5 is fixedly connected to the upper surface of the C-shaped frame 5. A support frame 52 for supporting the screen 81 is fixedly connected to the inner side of the C-shaped frame 5. Pulleys 54 are rotatably connected to the front and rear sides of the C-shaped frame 5 through short shafts, and the pulleys 54 are slidably connected to the inside of the guide rail 41.

[0041] Specifically, the C-shaped top plate 51 can block the gap between the fixed frame 4 and the C-shaped frame 5 to prevent the materials from falling into the gap. During the shaking process of the C-shaped frame 5, the pulleys 54 are driven to slide inside the guide rail 41, and the guide rail 41 further restricts the shaking direction of the C-shaped frame 5 by restricting the sliding direction of the pulleys 54, so that the C-shaped frame 5 can only shake along the path of the guide rail 41.

[0042] Furthermore, a blanking plate 53 is fixedly provided on the right side of the support frame 52 by bolts.

[0043] Specifically, the blanking plate 53 can be used to receive the materials falling from the right side of the screen 81.

[0044] Further, the elastic member 6 includes a sleeve 61 and a sliding rod 62. The right side of the sleeve 61 is fixedly connected to the left side of the C-shaped frame 5. The left end of the sliding rod 62 is fixedly connected with a circular seat 621, and the circular seat 621 is fixedly connected to the inner left side of the installation groove 421. The sleeve 61 and the sliding rod 62 are slidably connected. A spring 63 is sleeved on the outer side of the sliding rod 62. The left end of the spring 63 is fixedly connected to the right side of the circular seat 621, and the right end of the spring 63 is fixedly connected to the left side of the sleeve 61.

[0045] Specifically, when the driving assembly 7 drives the C-shaped frame 5 to the left, the C-shaped frame 5 will drive the sliding rod 62 to slide leftward in the sleeve 61 and compress the spring 63. When the C-shaped frame 5 loses the abutting force from the driving assembly 7, the spring 63 recovers its deformation, and at the same time, the elastic force generated by the spring 63 will drive the sliding rod 62 to slide rightward in the sleeve 61, thereby driving the C-shaped frame 5 to reset to the right.

[0046] Further, the synchronizing member 77 includes two sets of synchronizing wheels 771 and one set of synchronous belts 772. The two sets of synchronizing wheels 771 are respectively fixedly connected to the outer sides of the two sets of shaft rods 74, and the synchronous belt 772 is sleeved on the outer sides of the two sets of synchronizing wheels 771.

[0047] Specifically, the lower shaft rod 74 will drive the lower synchronizing wheel 771 to rotate, and the lower synchronizing wheel 771 will drive the upper synchronizing wheel 771 to rotate through the synchronous belt 772, so as to drive the upper shaft rod 74 to rotate, realizing the effective transmission and synchronous operation of the power between the two sets of shaft rods 74.

[0048] Further, a plurality of guide plates 82 are fixedly connected to the front and rear sides inside the screen frame 8 and on the upper surface of the screen 81. The guide plates 82 are inclined to the right. Handlebars 83 are fixedly provided on the front and rear sides of the upper surface of the screen frame 8 through bolts.

[0049] Specifically, when the material falls onto the screen 81, the guide plates 82 can play a role in blocking the rapid sliding of the material, thereby giving the material sufficient screening time.

[0050] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. It should be pointed out that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. An improved unloading chute for raw coal desludging screen, characterized in that: The invention comprises a material discharging belt (1) for conveying materials to the left side, a box body (3) which is open on the upper and lower sides and the right side, and two groups of screen frames (8) which are distributed up and down and open on the right side, wherein a plurality of groups of supporting legs (11) are fixedly connected to the lower side of the material discharging belt (1), the upper front and rear sides of the material discharging belt (1) are fixedly connected to side panels (2), and the left sides of the two groups of side panels (2) form a material discharging opening (21), the box body (3) is fixedly connected to the upper ends of the two groups of side panels (2), and two groups of fixed frames (4) which are distributed up and down are fixedly connected inside the box body (3), and the fixed frames (4) are inclinedly arranged, and the fixed frames (4) comprise two groups of guide rails (41), and the guide rails (41) are fixedly connected to the upper ends of the two groups of side panels (2). Connected to the front and rear inner walls of the box body (3), a square seat (42) is fixedly provided in the middle of the left side of the two groups of guide rails (41), a C-shaped frame (5) is slidably connected in the middle of the two groups of guide rails (41), a mounting groove (421) is provided on the right side of the square seat (42), a plurality of groups of elastic members (6) are connected inside the mounting groove (421), the right side of the elastic member (6) is connected to the left side of the C-shaped frame (5), the front side of the C-shaped frame (5) is connected to a driving assembly (7) for driving the C-shaped frame (5) to move in the left direction, the screen frame (8) is fixed to the inner side of the C-shaped frame (5) by bolts, and a screen (81) is fixedly connected to the inner side of the screen frame (8); The front side wall of the box body (3) is penetrated with an outer slide groove (31), and the front side of the guide rail (41) located on the front side is penetrated with an inner slide groove (411), the outer slide groove (31) is connected with the inner slide groove (411), the driving component (7) comprises a square plate (71) and a support rod (72), the square plate (71) is fixedly connected to the front side of the C-shaped frame (5), the support rod (72) is fixedly connected to the front side of the square plate (71), the left and right sides of the support rod (72) are fixedly connected with L-shaped connecting rods (721), the end of the L-shaped connecting rod (721) away from the support rod (72) is fixedly connected to the square plate (71), the support rod (72) penetrates the inner slide groove (411) and the outer slide groove (31) and extends to the box body ( 3), the support rod (72) is slidably connected to the inside of the inner slide groove (411) and the outer slide groove (31), the outer side of the support rod (72) and located at the front side of the box body (3) is rotatably connected with a roller (73), the front side wall of the box body (3) and located at the right side of the outer slide groove (31) is rotatably connected with a shaft rod (74), the outer side of the shaft rod (74) is fixedly connected with a cam (75), the front end of the shaft rod (74) located at the bottom is connected with a reduction motor (76) through a coupling, the front side of the unloading belt (1) is fixedly provided with a support seat (12) by bolts, the upper surface of the support seat (12) is fixedly connected with a fixing seat (13) for fixing the reduction motor (76), and the two groups of the shaft rods (74) are connected by a synchronous member (77).

2. The improved unloading chute for raw coal desludging screen according to claim 1 is characterized in that: The right sides of the two groups of side plates (2) are fixed with baffles (22) by means of bolts.

3. The improved unloading chute for raw coal desludging screen according to claim 1 is characterized in that: The upper surface of the C-shaped frame (5) is fixedly connected to a C-shaped top plate (51) for blocking a gap between the fixed frame (4) and the C-shaped frame (5); the inner side of the C-shaped frame (5) is fixedly connected to a support frame (52) for supporting a screen (81); the front and rear sides of the C-shaped frame (5) are rotatably connected to pulleys (54) via short shafts; the pulleys (54) are slidably connected to the inside of the guide rail (41).

4. The improved unloading chute for raw coal desludging screen according to claim 3 is characterized in that: A blanking plate (53) is fixedly provided on the right side of the support frame (52) by means of bolts.

5. The improved unloading chute for raw coal desludging screen according to claim 3 is characterized in that: The elastic member (6) comprises a sleeve (61) and a slide bar (62); the right side of the sleeve (61) is fixedly connected to the left side of the C-shaped frame (5); the left end of the slide bar (62) is fixedly connected to a circular seat (621); the circular seat (621) is fixedly connected to the left side of the interior of the mounting groove (421); the sleeve (61) and the slide bar (62) are slidably connected; a spring (63) is sleeved on the outer side of the slide bar (62); the left end of the spring (63) is fixedly connected to the right side of the circular seat (621); and the right end of the spring (63) is fixedly connected to the left side of the sleeve (61).

6. The improved unloading chute for raw coal desludging screen according to claim 1 is characterized in that: The synchronous member (77) comprises two sets of synchronous wheels (771) and a set of synchronous belts (772). The two sets of synchronous wheels (771) are respectively fixedly connected to the outer sides of the two sets of shafts (74), and the synchronous belts (772) are sleeved on the outer sides of the two sets of synchronous wheels (771).

7. The improved unloading chute for raw coal desludging screen according to claim 1 is characterized in that: A plurality of guide plates (82) are fixedly connected to the front and rear sides of the interior of the screen frame (8) and located on the upper surface of the screen (81); the guide plates (82) are inclined toward the right side; and handles (83) are fixedly provided on the front and rear sides of the upper surface of the screen frame (8) by bolts.

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