Downhole movable type double-layer grading crusher

Abstract

The underground movable type double-layer grading crusher comprises a movable frame structure, a second-stage crusher is fixedly arranged in the movable frame structure, a first-stage crusher is arranged at the position, over the second-stage crusher, in the movable frame structure, and the first-stage crusher and the second-stage crusher are connected through a flexible connecting cylinder. A gangue powder discharging port is formed in the bottom of the second-stage crusher, an original gangue feeding port is formed in the top of the first-stage crusher, and a plurality of moving wheels are fixedly connected to the bottom of the movable frame structure. The underground movable type double-layer grading crusher has the advantages of being portable, movable, small in occupied space, efficient and low in cost, and movable, miniaturized and simplified arrangement of a filling station is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of mining and relates to an underground mobile double-layer grading crusher. Background Art

[0002] The gangue slurry filling technology is to process the gangue into finished materials with a certain particle size and gradation by crushing and other methods, and then mix it with water in a certain proportion to make a slurry of a specific concentration. Finally, the gangue slurry is filled into the underground goaf by a grouting pump through a pipeline, thereby realizing the underground disposal of the gangue. For the gangue slurry filling technology, in order to realize the construction of a small underground filling station, the crushing system needs to be miniaturized first.

[0003] The traditional crushing system is generally divided into two or three stages, and each stage of crushers is connected by belts or scrapers to form a 30-60m long crushing production line, which eventually turns gangue into gangue powder. The traditional crushing system not only occupies a large area, but can only be fixed in one place, with low flexibility, and cannot fully meet the crushing needs of high-yield and high-efficiency mine gangue slurry filling technology. Utility Model Content

[0004] The utility model aims to provide an underground mobile double-layer grading crusher, which has the characteristics of being portable and movable and occupying a small space.

[0005] The technical solution of the utility model is that an underground mobile double-layer grading crusher comprises a movable frame structure, a secondary crusher is fixedly installed in the movable frame structure, a primary crusher is arranged in the movable frame structure just above the secondary crusher, the primary crusher and the secondary crusher are connected by a flexible connecting tube, a gangue powder discharge port is provided at the bottom of the secondary crusher, a raw gangue feed port is provided at the top of the primary crusher, and a plurality of movable wheels are fixedly connected to the bottom of the movable frame structure.

[0006] The utility model is characterized in that:

[0007] A retractable dust cover is arranged directly above the primary crusher, and the size of the retractable dust cover is adapted to the size of the raw gangue feed port.

[0008] The retractable dust cover includes several pneumatic telescopic rods fixed to the top of the raw gangue feeding port. The first pneumatic telescopic rod to the last pneumatic telescopic rod are wrapped with side flexible telescopic cloth in sequence, and the tops of the telescopic ends of the pneumatic telescopic rods are wrapped with top flexible fixed cloth.

[0009] The movable frame structure includes a secondary connecting frame fixed to the outer periphery of the secondary crusher and a primary connecting frame fixed to the outer periphery of the primary crusher. The primary connecting frame is parallel to the secondary connecting frame. Two primary crushing legs are connected to both sides of the primary connecting frame. The primary crushing legs are perpendicular to the primary connecting frame and are fixed by rivets. The center positions of the two opposite primary crushing legs are connected and fixed by a middle-layer connecting cross bar. Several jacks are fixed to the secondary connecting frame at a position directly below the middle-layer connecting cross bar, and the top of the jacks is abutted against the middle-layer connecting cross bar; a primary crushing anchor is fixed to the bottom of each primary crushing leg, and a movable wheel is fixed to the bottom of the secondary connecting frame.

[0010] The secondary connecting frame is a rectangular frame composed of the secondary crushing front crossbeam, the secondary crushing left crossbeam, the secondary crushing rear crossbeam, and the secondary crushing right crossbeam connected in sequence; the primary connecting frame is a rectangular frame composed of the primary crushing front cross bar, the primary crushing left cross bar, the primary crushing rear cross bar, and the primary crushing right cross bar connected in sequence.

[0011] A number of secondary crushing legs are evenly arranged at the position of the secondary connecting frame between the two middle-layer connecting cross bars. The tops of the two secondary crushing legs at the ends are respectively connected to the two middle-layer connecting cross bars. The lower sections of the secondary crushing legs are connected to the outer side of the secondary connecting frame through rivets, and the bottoms of the secondary crushing legs are fixed with secondary crushing ground anchors.

[0012] A group of rivet holes are provided at the position corresponding to the secondary crushing leg on the outside of the secondary connecting frame and at the position close to the two ends on the outside of the primary connecting frame. The lower section of the secondary crushing leg and the upper section of the primary crushing leg are provided with multiple groups of rivet holes from top to bottom.

[0013] The beneficial effects of the utility model are:

[0014] The utility model provides an underground mobile double-layer grading crusher, which breaks the layout of the traditional underground fixed and large-scale filling station and realizes the layout of the underground movable, miniaturized, lightweight and linear filling station. It is portable and movable, occupies a small space, is highly efficient and low-cost, and can not only meet the requirements of the slurry filling technology for the crushing particle size, but also meet the requirements of the paste filling and solid filling for the crushing particle size by adjusting the internal structure of the crusher, which greatly reduces the footprint of the underground filling station and realizes the miniaturized and simplified layout of the filling station. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of the utility model underground mobile double-layer grading crusher;

[0016] Figure 2 This is a schematic diagram of the structure of a retractable dust cover in an underground mobile double-layer grading crusher of the utility model;

[0017] Figure 3 For this utility model Figure 1 A front view of the movable frame structure in the walking state;

[0018] Figure 4 For this utility model Figure 1 A cross-sectional view of the movable frame structure in the walking state;

[0019] Figure 5 For this utility model Figure 1 The left view of the movable frame structure in the walking state;

[0020] Figure 6 For this utility model Figure 1 The right side view of the movable frame structure in the walking state;

[0021] Figure 7 For this utility model Figure 1 A front view of the movable frame structure in operation;

[0022] Figure 8 For this utility model Figure 1 A left view of the movable frame structure in operation;

[0023] Fig. 9 For this utility model Figure 1 A top view of the movable frame structure in operation.

[0024] In the figure, 1. raw gangue feeding port, 2. primary crusher, 3. flexible connecting cylinder, 4. secondary crusher, 5. gangue powder discharging port, 6. movable frame structure, 7. movable wheel, 8. retractable dust cover, 9. pneumatic telescopic rod, 10. top flexible fixed cloth, 11. side flexible telescopic cloth, 12. secondary crushing left beam, 13. secondary crushing right beam, 14. secondary crushing front beam, 15. secondary crushing rear beam, 16. secondary crushing left three legs, 17. secondary crushing left two legs, 18 secondary crushing left one leg, 19. secondary crushing right three legs, 20. secondary crushing right two legs, 21. secondary crushing 1. First-level crushing anchor, 2. Second-level crushing leg upper rivet, 2. Second-level crushing leg lower rivet, 2. Second-level crushing anchor, 2. Middle-layer connecting rear cross bar, 2. Middle-layer connecting front cross bar, 2. Middle-layer connecting cross bar connecting screws, 2. Jack, 3. First-level crushing left second leg, 3. First-level crushing left leg, 3. First-level crushing right second leg, 3. First-level crushing left cross bar, 3. First-level crushing right cross bar, 3. First-level crushing rear cross bar, 3. First-level crushing front cross bar, 3. First-level crushing leg lower rivet, 3. First-level crushing leg upper rivet. DETAILED DESCRIPTION

[0025] The utility model is described in detail below with reference to the accompanying drawings and specific implementation modes.

[0026] Example 1

[0027] The utility model of underground mobile double-layer classification crusher has a structure as follows Figure 1 As shown, it includes a gangue feed port 1, a primary crusher 2, a flexible connection tube 3, a secondary crusher 4, a gangue powder discharge port 5, a movable frame structure 6, a moving wheel 7, and a retractable dust cover 8. The primary crusher 2 is located directly above the secondary crusher 4, and the two are connected by a flexible connection tube 3 and are respectively fixed in the movable frame structure 6; the primary crusher 2 has a gangue feed port 1 on the top, and the retractable dust cover 8 is located directly above the primary crusher 2, and the size is adapted to the gangue feed port 1; the secondary crusher 4 has a gangue powder discharge port 5 at the bottom, and the gangue powder discharge port 5 is generally connected to a sealed screw conveyor or a scraper conveyor. Four moving wheels 7 are fixed to the bottom of the movable frame structure 6.

[0028] Example 2

[0029] Based on Example 1, the structure of the retractable dust cover 8 is as follows: Figure 2 As shown, it includes four pneumatic telescopic rods 9, and the tops of the four pneumatic telescopic rods 9 are wrapped with a flexible fixed cloth 10 together. The first pneumatic telescopic rod to the last pneumatic telescopic rod 9 are wrapped with a side flexible telescopic cloth 11 in sequence; when the underground mobile double-layer grading crusher is moving, the pneumatic telescopic rod 9 drives the side flexible telescopic cloth 11 to be compressed by 300 to 400 mm, and the top flexible fixed cloth 10 is lowered accordingly; when the underground mobile double-layer grading crusher is running, the pneumatic telescopic rod 9 drives the side flexible telescopic cloth 11 to extend by 300 to 400 mm, and the top flexible fixed cloth 10 is raised accordingly.

[0030] Example 3

[0031] Based on the second embodiment, the movable frame structure 6 is specifically as follows Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, it includes a secondary connecting frame and a primary connecting frame arranged in parallel. The secondary connecting frame is a rectangular frame composed of a secondary crushing front cross beam 14, a secondary crushing left cross beam 12, a secondary crushing rear cross beam 15, and a secondary crushing right cross beam 13 connected in sequence. The inner sides of the four sides of the secondary connecting frame are respectively fixedly connected to the outer periphery of the secondary crusher 4; the primary connecting frame is a rectangular frame composed of a primary crushing front cross bar 37, a primary crushing left cross bar 34, a primary crushing rear cross bar 36, and a primary crushing right cross bar 35 connected in sequence. The inner sides of the four sides of the primary connecting frame are respectively fixedly connected to the outer periphery of the primary crusher 2.

[0032] like Figure 3and Figure 4 As shown, a group of rivet holes are provided at the outer sides of the left and right cross bars 34 and 35 of the primary crusher near both ends, and multiple groups of rivet holes are provided from top to bottom on the upper sections of the left second leg 30, the left one leg 31, the right second leg 32 and the right one leg 33 of the primary crusher. The left second leg 30 and the left one leg 31 of the primary crusher are vertically connected to the left cross bar 34 of the primary crusher through rivets, and the right second leg 32 and the right one leg 33 of the primary crusher are vertically connected to the right cross bar 35 of the primary crusher through rivets. The bottom of each primary crusher leg is fixedly connected to the primary crusher ground anchor 22, and the moving wheel 7 is fixedly connected to the bottom of the left cross beam 12 and the right cross beam 13 of the secondary crusher.

[0033] The center positions of the left second supporting legs 30 of the primary crusher and the center positions of the right second supporting legs 32 of the primary crusher are connected and fixed by a middle-layer connecting rear cross bar 26, and the center positions of the left supporting legs 31 of the primary crusher and the center positions of the right supporting legs 33 of the primary crusher are connected and fixed by a middle-layer connecting front cross bar 27;

[0034] A group of rivet holes are provided at the positions corresponding to the left third support leg 16, the left second support leg 17 and the left first support leg 18 of the secondary crusher on the outside of the left crossbeam 12 of the secondary crusher. The left third support leg 16, the left second support leg 17 and the left first support leg 18 of the secondary crusher are provided with multiple groups of rivet holes from top to bottom and are connected to the left crossbeam 12 of the secondary crusher through rivets.

[0035] A group of rivet holes are provided at the positions corresponding to the second-level crushing right third leg 19, the second right leg 20 and the second right leg 21 of the second crushing. The second right third leg 19, the second right leg 20 and the second right leg 21 of the second crushing are provided with multiple groups of rivet holes from top to bottom and are connected to the second-level crushing right crossbeam 13 through rivets.

[0036] The bottoms of the secondary crushing left third leg 16, the secondary crushing left second leg 17, the secondary crushing left one leg 18, the secondary crushing right third leg 19, the secondary crushing right second leg 20 and the secondary crushing right one leg 21 are all fixedly connected with the secondary crushing ground anchor 25.

[0037] like Figure 5 and Figure 6 As shown, three jacks 29 are fixedly connected to the secondary crushing front side cross beam 14 and the secondary crushing rear side cross beam 15 of the secondary connecting frame, and the tops of the jacks 29 are all in contact with the middle layer connecting cross bar.

[0038] When the movable frame structure 6 is in the walking state, each jack 29 props up the middle layer connection rear cross bar 26 and the middle layer connection front cross bar 27; the top of the secondary crushing left three legs 16 and the top of the secondary crushing right three legs 19 are connected to the middle layer connection rear cross bar 26 through the middle layer connection cross bar connection screws 28, the top of the secondary crushing left leg 18 and the top of the secondary crushing right leg 21 are connected to the middle layer connection front cross bar 27 through the middle layer connection cross bar connection screws 28, the secondary crushing right three legs 19, the secondary crushing right second legs 20, and the secondary crushing right leg 21 are connected to the secondary crushing legs through the secondary crushing leg lower rivets 24 respectively. The crushing right side cross beam 13 is connected; the secondary crushing left third leg 16, the secondary crushing left second leg 17, and the secondary crushing left one leg 18 are respectively connected to the secondary crushing left side cross beam 12 through the secondary crushing leg lower rivet 24; the primary crushing left second leg 30 and the primary crushing left one leg 31 are connected to the primary crushing left cross bar 34 through the primary crushing leg lower rivet 38; the primary crushing right second leg 32 and the primary crushing right one leg 33 are connected to the primary crushing right cross bar 35 through the primary crushing leg lower rivet 38, thereby driving the primary crushing anchor 22 and the secondary crushing anchor 25 to rise, and the moving wheel 7 moves.

[0039] like Figure 7 , Figure 8 , Fig. 9 As shown, when the movable frame structure 6 is in operation, each jack 29 descends, separates from the middle-layer connecting rear cross bar 26 and the middle-layer connecting front cross bar 27, removes the middle-layer connecting cross bar connecting screws 28, and the secondary crushing left three legs 16, the secondary crushing left two legs 17, and the secondary crushing left one leg 18 are respectively connected to the secondary crushing left cross beam 12 through the secondary crushing leg rivets 23; the secondary crushing right three legs 19, the secondary crushing right two legs 20, and the secondary crushing right one leg 21 are respectively connected to the secondary crushing right cross beam 13 through the secondary crushing leg rivets 23; the secondary crushing ground anchor 25 is all fixed to the tunnel floor; the primary crushing left two legs 30 and the primary crushing left one leg 31 are connected to the primary crushing left cross bar 34 through the primary crushing leg rivets 39; the primary crushing right two legs 32 and the primary crushing right one leg 33 are connected to the primary crushing right cross bar 35 through the primary crushing leg rivets 39; the primary crushing ground anchor 22 is all fixed to the tunnel floor.

[0040] The working process of the underground mobile double-layer grading crusher of the utility model is as follows:

[0041] The raw gangue is conveyed to the raw gangue feeding port 1 by a belt, and enters the primary crusher 2 for primary crushing, and the raw gangue is changed from block gangue to semi-finished gangue of -150mm; the semi-finished gangue enters the secondary crusher 4 through the flexible connecting tube 3 for crushing, and the semi-finished gangue is crushed into finished gangue powder of -3mm; finally, the finished gangue powder of -3mm leaks out from the gangue powder discharge port 5 and enters the next link through a sealed screw conveyor or a scraper conveyor.

[0042] The underground mobile double-layer grading crusher is divided into a walking state and an operating state. In the walking state, the retractable dust cover 8 is lowered, and the underground mobile double-layer grading crusher moves in the underground tunnel through the moving wheels 7; in the operating state, the retractable dust cover 8 is raised, the moving wheels 7 are unloaded, the secondary crushing anchors 25 are all fixed to the tunnel floor and bear the entire weight of the secondary crusher 4, and the primary crushing anchors 22 are all fixed to the tunnel floor and bear the entire weight of the primary crusher 2.

[0043] The utility model has the advantages of being portable, small in space, efficient and low in cost, and can meet the requirements of slurry filling technology for crushing particle size, and can also meet the requirements of paste filling and solid filling for crushing particle size by adjusting the internal structure of the crusher, thereby greatly reducing the footprint of the underground filling station, breaking the traditional layout of fixed and large-scale underground filling stations, and realizing the layout of movable, miniaturized, lightweight, simple and linear underground filling stations.

Claims

1. Underground mobile double-layer grading crusher, characterized in that: The invention comprises a movable frame structure (6), wherein a secondary crusher (4) is fixedly installed in the movable frame structure (6), a primary crusher (2) is arranged in the movable frame structure (6) at a position directly above the secondary crusher (4), the primary crusher (2) and the secondary crusher (4) are connected via a flexible connecting tube (3), the secondary crusher (4) has a gangue powder discharge port (5) at the bottom, the primary crusher (2) has a raw gangue feed port (1) at the top, and a plurality of movable wheels (7) are fixedly connected to the bottom of the movable frame structure (6).

2. The underground mobile double-layer classification crusher according to claim 1 is characterized in that: A retractable dust cover (8) is arranged directly above the primary crusher (2), and the size of the retractable dust cover (8) is adapted to the size of the raw gangue feeding port (1).

3. The underground mobile double-layer classification crusher according to claim 2 is characterized in that: The retractable dust cover (8) comprises a plurality of pneumatic telescopic rods (9) fixedly connected to the top of the raw gangue feeding port (1), the first pneumatic telescopic rod (9) to the last pneumatic telescopic rod (9) are sequentially wrapped by side flexible telescopic cloth (11), and the tops of the telescopic ends of the pneumatic telescopic rods (9) are collectively wrapped by top flexible fixed cloth (10).

4. The underground mobile double-layer grading crusher according to claim 1 is characterized in that: The movable frame structure (6) includes a secondary connecting frame fixedly connected to the outer periphery of the secondary crusher (4) and a primary connecting frame fixedly connected to the outer periphery of the primary crusher (2), the primary connecting frame is parallel to the secondary connecting frame, two primary crushing legs are connected to both sides of the primary connecting frame, the primary crushing legs are perpendicular to the primary connecting frame and fixed by rivets, the center positions of the two opposite primary crushing legs are connected and fixed by a middle-layer connecting cross bar, the secondary connecting frame is fixedly connected to a plurality of jacks (29) at a position directly below the middle-layer connecting cross bar, and the top of the jack (29) is abutted against the middle-layer connecting cross bar; the bottom of each primary crushing leg is fixedly connected to a primary crushing anchor (22), and the movable wheel (7) is fixedly connected to the bottom of the secondary connecting frame.

5. The underground mobile double-layer classification crusher according to claim 4 is characterized in that: The secondary connection frame is a rectangular frame formed by sequentially connecting a secondary crushing front crossbeam (14), a secondary crushing left crossbeam (12), a secondary crushing rear crossbeam (15), and a secondary crushing right crossbeam (13); the primary connection frame is a rectangular frame formed by sequentially connecting a primary crushing front crossbar (37), a primary crushing left crossbar (34), a primary crushing rear crossbar (36), and a primary crushing right crossbar (35).

6. The underground mobile double-layer classification crusher according to claim 4, characterized in that: The secondary connecting frame is evenly provided with a plurality of secondary crushing legs at a position between the two middle-layer connecting cross bars. The tops of the two secondary crushing legs at the ends are respectively connected to the two middle-layer connecting cross bars. The lower sections of the secondary crushing legs are connected to the outer sides of the secondary connecting frame by rivets. The bottoms of the secondary crushing legs are fixedly connected with secondary crushing ground anchors (25).

7. The underground mobile double-layer classifying crusher according to claim 6, characterized in that: A group of rivet holes are provided at the position on the outside of the secondary connecting frame corresponding to the secondary crushing leg and at the position on the outside of the primary connecting frame close to the two ends. The lower section of the secondary crushing leg and the upper section of the primary crushing leg are provided with multiple groups of rivet holes from top to bottom.

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