Crushing and screening device for coal dressing processing

Abstract

The utility model relates to the technical field of coal processing, and discloses a crushing and screening device for coal dressing processing, which comprises a box body, the feeding hole is formed in the top of the box body; the supporting legs are arranged at the bottom of the box body; the adsorption mechanism is arranged at the top of the box body and comprises a fixing plate, a magnetic bar connecting plate and an L-shaped rod, a through hole is formed in the right side of the feeding port, the fixing plate is movably connected to the interior of the through hole, the magnetic bar is detachably connected to the outer wall of the left side of the fixing plate, and the L-shaped rod is fixedly installed on the outer wall of the right side of the fixing plate. The L-shaped rod penetrates through the connecting plate and is movably connected with the connecting plate; raw materials are poured into the box body from the feeding port to be crushed and screened, the raw materials pass through the plurality of magnetic bars on the fixing plate, and the magnetic bars adsorb iron-containing impurities in the raw materials, so that damage to the device during crushing is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of coal processing, in particular to a crushing and screening device for coal preparation processing. Background Art

[0002] Coal preparation is also called coal washing. Coal washing is an indispensable process in coal deep processing. It is the process of selecting clean coal that meets the user's quality requirements from raw coal. Many impurities are mixed into the raw coal during the mining process. Coal washing is to remove the impurities in the raw coal. Coal washing requires the raw coal to be crushed and screened.

[0003] For example, the Chinese patent publication number is CN214599399U, and the technical solution disclosed in the patent document is as follows: a crushing and screening device for coal preparation processing, including a box body, a feed port is provided at the upper end of the box body, a clean coal outlet is provided at the lower end, and an impurity outlet is provided on one side. The box body is provided with a first sieve plate, a second sieve plate, a first crushing mechanism and a hot air mechanism, the first crushing mechanism is arranged below the feed port, the second sieve plate is arranged below the first sieve plate, the first sieve plate has a first outlet, the second sieve plate has a second outlet, the second outlet is connected to the impurity outlet, and the first outlet is provided with a second crushing mechanism; the raw coal is crushed into a first crushed material after the first crushing mechanism, the first crushed material includes clean coal and a second crushed material, and the first crushed material is crushed into clean coal and impurities after the second crushing mechanism; the clean coal falls into the clean coal outlet after being separated by the first sieve plate and the second sieve plate, and the impurities are discharged from the impurity outlet. The utility model can effectively separate impurities and clean coal and can dry the raw coal to avoid adhesion to the equipment and blockage during the crushing process.

[0004] The above technology is not convenient for separating the iron-containing impurities in the raw materials when preparing coal. If they are not separated in advance, the hammer ring will be damaged due to its high hardness, affecting the efficiency of coal preparation. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a crushing and screening device for coal preparation.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crushing and screening device for coal preparation processing, comprising a box body; a feed port arranged at the top of the box body; a supporting leg arranged at the bottom of the box body; and an adsorption mechanism arranged at the top of the box body, the adsorption mechanism comprising a fixed plate, a magnetic rod connecting plate and an L-shaped rod, a through hole is opened on the right side of the feed port, and the fixed plate is movably connected to the inside of the through hole, the magnetic rod is detachably connected to the left outer wall of the fixed plate, the L-shaped rod is fixedly installed on the right outer wall of the fixed plate, and the L-shaped rod passes through the connecting plate and is movably connected to the connecting plate.

[0009] Preferably, a vertical plate 1 and a vertical plate 2 are fixedly installed on the top of the box body, and a round rod is fixedly installed between the vertical plate 1 and the vertical plate 2. The round rod is provided so that the fixed plate can move stably and horizontally.

[0010] Preferably, a fixing block is fixedly installed on the right side of the connecting plate, and the round rod passes through the fixing block and is slidably connected to the fixing block. A handle is fixedly installed on the right side of the fixing block, and the fixing plate is conveniently pulled by providing the handle.

[0011] Preferably, a trapezoidal block is fixedly installed on the bottom of the fixed block, a connecting piece is fixedly connected to the right outer wall of the vertical plate, and the connecting piece is movably connected to a trapezoidal rod. When the fixed plate is installed in the through hole, the inclined surface of the trapezoidal rod can be squeezed with the inclined surface of the trapezoidal block, so that the downward movement of the trapezoidal rod does not block the leftward movement of the trapezoidal block. When the trapezoidal block does not squeeze the trapezoidal rod, the trapezoidal rod is reset to block the trapezoidal block, so that the fixed plate is stably installed in the through hole.

[0012] Preferably, a disc is fixedly mounted on the bottom of the trapezoidal rod, a spring is sleeved on the outer wall of the trapezoidal rod, and both ends of the spring are respectively fixedly connected to the bottom of the connecting piece and the top of the disc, so that the trapezoidal rod can be driven to reset by setting the spring.

[0013] Preferably, a universal wheel is fixedly installed on the bottom of the supporting leg, and a guide plate is fixedly installed on the top of the feed port. The opening of the feed port can be enlarged by setting the guide plate, and the movement of the device is facilitated by setting the universal wheel. Relevant crushing and screening mechanisms are arranged in the box body. This is the prior art and is not the main innovation point, so it will not be elaborated on.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a crushing and screening device for coal preparation processing, which has the following beneficial effects:

[0016] 1. A crushing and screening device for coal preparation processing, which pours raw materials from a feed port into a box for crushing and screening. The raw materials pass through multiple magnetic bars on a fixed plate, and the magnetic bars adsorb iron-containing impurities in the raw materials, thereby avoiding damage to the device during crushing.

[0017] 2. This crushing and screening device for coal preparation processing drives the trapezoidal rod to move downward by pulling down the disc. When the restriction of the trapezoidal block is released, the handle can be held to pull the fixed plate, so that the magnetic rod moves out of the feed port, making it convenient for the staff to recover the adsorbed impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 It is a schematic diagram of the structure of the utility model;

[0020] Figure 2 This is a schematic diagram of the internal structure of the feed port of the utility model;

[0021] Figure 3 It is an enlarged view of A of the present utility model.

[0022] In the figure: 1. box body; 2. supporting legs; 3. universal wheels; 4. feed port; 5. guide plate; 6. adsorption mechanism; 61. fixing plate; 62. magnetic rod; 63. connecting plate; 64. L-shaped rod; 65. fixing block; 66. vertical plate 1; 67. round rod; 68. vertical plate 2; 69. handle; 7. trapezoidal block; 8. connecting plate; 9. trapezoidal rod; 10. round plate; 11. spring. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0024] Example 1

[0025] like Figure 1-3 As shown, the utility model provides a crushing and screening device for coal preparation processing, including a box body 1; a feed port 4 arranged at the top of the box body 1; a support leg 2 arranged at the bottom of the box body 1; and an adsorption mechanism 6 arranged at the top of the box body 1, the adsorption mechanism 6 includes a fixed plate 61, a magnetic bar 62, a connecting plate 63 and an L-shaped rod 64, a through hole is opened on the right side of the feed port 4, and the fixed plate 61 is movably connected to the inside of the through hole, and the magnetic bar 62 is detachably connected to the left outer wall of the fixed plate 61, the number of the magnetic bars 62 is several, and it is convenient to disassemble, when the size of the raw material is large, some of the magnetic bars 62 can be removed, and the adjacent magnetic bars 6 can be adjusted. 2, an L-shaped rod 64 is fixedly installed on the right outer wall of the fixing plate 61, and the L-shaped rod 64 passes through the connecting plate 63 and is movably connected to the connecting plate 63. A vertical plate 1 66 and a vertical plate 2 68 are fixedly installed on the top of the box body 1, and a round rod 67 is fixedly installed between the vertical plate 1 66 and the vertical plate 2 68. By setting the round rod 67, the fixing plate 61 can be stably horizontally movable, a fixing block 65 is fixedly installed on the right side of the connecting plate 63, and the round rod 67 passes through the fixing block 65 and is slidably connected to the fixing block 65. A handle 69 is fixedly installed on the right side of the fixing block 65, and the handle 69 is provided to facilitate pulling the fixing plate 61.

[0026] In this embodiment, the raw materials are poured from the feed port 4 into the box body 1 for crushing and screening. The raw materials pass through a plurality of magnetic bars 62 on the fixed plate 61, and the magnetic bars 62 adsorb iron-containing impurities in the raw materials, thereby avoiding damage to the device during crushing.

[0027] Example 2

[0028] like Figure 1-3 As shown, on the basis of Example 1, the utility model provides a technical solution: preferably, a trapezoidal block 7 is fixedly installed on the bottom of the fixed block 65, a connecting piece 8 is fixedly connected to the right outer wall of the vertical plate 66, and the connecting piece 8 is movably connected to the trapezoidal rod 9. When the fixed plate 61 is installed in the through hole, the inclined surface of the trapezoidal rod 9 can be squeezed with the inclined surface of the trapezoidal block 7, so that the trapezoidal rod 9 moves downward without blocking the trapezoidal block 7 from moving left. When the trapezoidal block 7 does not squeeze the trapezoidal rod 9, the trapezoidal rod 9 is reset to block the trapezoidal block 7, so that the fixed plate 61 is stably installed in the through hole, and a round piece 10 is fixedly installed on the bottom of the trapezoidal rod 9. The outer wall of the trapezoidal rod 9 is provided with a spring 11, and the two ends of the spring 11 are respectively fixedly connected to the bottom of the connecting piece 8 and the top of the round piece 10. The trapezoidal rod 9 can be driven to reset by setting the spring 11.

[0029] In this embodiment, by pulling down the disc 10 to drive the trapezoidal rod 9 downward, the trapezoidal block 7 is released from restriction and the handle 69 is grasped to pull the fixed plate 61, so that the magnetic rod 62 moves out of the feed port 4, making it convenient for the staff to recover the adsorbed impurities.

[0030] Example 3

[0031] like Figure 1-3 As shown, based on Example 1, the utility model provides a technical solution: preferably, a universal wheel 3 is fixedly installed on the bottom of the support leg 2, and a guide plate 5 is fixedly installed on the top of the feed port 4.

[0032] In this embodiment, the opening of the feed port 4 can be enlarged by providing a guide plate 5, and the movement of the device is facilitated by providing a universal wheel 3. Relevant crushing and screening mechanisms are provided in the box body 1, which is the prior art in the background technology.

[0033] The following is a detailed description of the working principle of this crushing and screening device for coal preparation.

[0034] like Figure 1-3As shown, when in use, the raw materials are poured from the feed port 4 into the box body 1 for crushing and screening. The raw materials pass through multiple magnetic rods 62 on the fixed plate 61, and the magnetic rods 62 adsorb iron-containing impurities in the raw materials, thereby avoiding damage to the device during crushing; by making the fixed block 65 contact with the vertical plate 66, the trapezoidal block 7 is located on the left side of the trapezoidal rod 9, so that the fixed plate 61 is stably installed in the through hole, so that the magnetic rod 62 can play a role, and the downward pull disc 10 drives the trapezoidal rod 9 to move downward. The trapezoidal block 7 releases the restriction and the handle 69 can be held to pull the fixed plate 61, so that the magnetic rod 62 moves out of the feed port 4, which is convenient for the staff to recover the adsorbed impurities. By setting an L-shaped rod 64, the fixed plate 61 can be removed by lifting the fixed plate 61, which is convenient for cleaning impurities on the magnetic rod 62; the above is the working process of the entire device, and the contents not described in detail in this specification belong to the existing technology known to professional and technical personnel in this field.

Claims

1. A crushing and screening device for coal preparation, comprising a housing (1); A feed inlet (4) is arranged on the top of the box body (1); Support legs (2) arranged at the bottom of the box body (1); and an adsorption mechanism (6) arranged on the top of the box (1), characterized in that: The adsorption mechanism (6) comprises a fixed plate (61), a magnetic rod (62), a connecting plate (63) and an L-shaped rod (64); a through hole is provided on the right side of the feed port (4); the fixed plate (61) is movably connected to the inside of the through hole; the magnetic rod (62) is detachably connected to the left outer wall of the fixed plate (61); the L-shaped rod (64) is fixedly mounted on the right outer wall of the fixed plate (61); and the L-shaped rod (64) passes through the connecting plate (63) and is movably connected to the connecting plate (63).

2. A crushing and screening device for coal preparation according to claim 1, characterized in that: A first vertical plate (66) and a second vertical plate (68) are fixedly installed on the top of the box body (1), and a round rod (67) is fixedly installed between the first vertical plate (66) and the second vertical plate (68).

3. A crushing and screening device for coal preparation according to claim 2, characterized in that: A fixing block (65) is fixedly installed on the right side of the connecting plate (63), and a round rod (67) penetrates the fixing block (65) and is slidably connected to the fixing block (65), and a handle (69) is fixedly installed on the right side of the fixing block (65).

4. A crushing and screening device for coal preparation according to claim 3, characterized in that: A trapezoidal block (7) is fixedly mounted on the bottom of the fixed block (65), a connecting piece (8) is fixedly connected to the right outer wall of the vertical plate (66), and the connecting piece (8) is movably connected to a trapezoidal rod (9).

5. A crushing and screening device for coal preparation according to claim 4, characterized in that: A disc (10) is fixedly mounted on the bottom of the trapezoidal rod (9), a spring (11) is sleeved on the outer wall of the trapezoidal rod (9), and two ends of the spring (11) are respectively fixedly connected to the bottom of the connecting piece (8) and the top of the disc (10).

6. A crushing and screening device for coal preparation according to claim 1, characterized in that: A universal wheel (3) is fixedly mounted on the bottom of the support leg (2), and a guide plate (5) is fixedly mounted on the top of the feed opening (4).

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