Coal sample crushing mechanism with secondary crushing function

Abstract

The utility model relates to the technical field of coal sample crushing, and discloses a coal sample crushing mechanism with secondary crushing, which comprises a coal sample crusher, the interior of the coal sample crusher is divided into a first crushing cavity and a second crushing cavity, the first crushing cavity is positioned above the second crushing cavity, and the second crushing cavity is positioned above the first crushing cavity. And the lower portion of the first crushing cavity communicates with the upper portion of the second crushing cavity, a rotor is arranged in the first crushing cavity, and a plurality of crushing hammers are fixedly installed on the outer wall of the rotor. According to the coal sample crushing device, the first crushing cavity, the rotor, the crushing hammer, the impact-resistant lining plate, the collision-resistant crushing block and the motors I are matched, so that primary crushing is conveniently performed on a coal sample, the coal sample subjected to primary crushing falls into the second crushing cavity, and secondary crushing is performed on the coal sample through the matching of the first crushing roller, the second crushing roller and the two motors II; and the coal sample can be conveniently subjected to secondary crushing at a time, so that the coal sample is crushed more sufficiently, and the crushing efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal sample crushing, and more specifically to a coal sample crushing mechanism with secondary crushing. Background Art

[0002] A coal sample is a representative part of coal taken according to regulations to determine certain characteristics of the coal. According to the data obtained from the analysis of the coal sample, the type and quality characteristics of the coal can be determined, as well as its processing and utilization characteristics and industrial utilization directions. Since coal is a heterogeneous substance, to ensure the representativeness of the coal sample, the sampling and preparation of the sample must be carried out according to national standards. According to the sampling purpose and research content, coal samples can be divided into chemical coal samples, process coal samples, coal petrology coal samples, and coal (rock) technical samples. Coal sample crushing is the process of reducing the particle size of coal samples by mechanical or manual methods during the sample preparation process.

[0003] At present, when reducing the particle size of coal samples by crushing, the coal samples are usually crushed by a crushing device. However, when the existing crushing device is in use, the coal samples are usually crushed once. But when crushed once, the coal samples are prone to insufficient crushing. If secondary crushing is carried out, it is more troublesome, resulting in a lower crushing efficiency, which needs to be improved. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a coal sample crushing mechanism with secondary crushing to solve the problems existing in the above background art.

[0005] The utility model provides the following technical solution: A coal sample crushing mechanism with secondary crushing, including a coal sample crusher. The interior of the coal sample crusher is divided into a first crushing chamber and a second crushing chamber. The first crushing chamber is located above the second crushing chamber, and the lower part of the first crushing chamber communicates with the upper part of the second crushing chamber. A rotor is arranged inside the first crushing chamber, and a plurality of crushing hammers are fixedly installed on the outer wall of the rotor. A first crushing roll and a second crushing roll are symmetrically arranged inside the second crushing chamber. A coal sample conveying mechanism is arranged below the coal sample crusher. The coal sample conveying mechanism includes a conveyor housing. The conveyor housing is located below the coal sample crusher, and a main shaft is arranged inside the conveyor housing. A spiral conveying blade is fixedly installed on the outer wall of the main shaft.

[0006] Further, an inclined feeding port is opened on the right side of the top of the coal sample crusher. The bottom end of the inclined feeding port communicates with one side above the inner cavity of the first crushing chamber. A feeding hopper is fixedly installed on the right side of the top of the coal sample crusher. The bottom of the feeding hopper is located above the top end of the inclined feeding port. Support frames are fixedly installed at the four corners of the bottom of the coal sample crusher.

[0007] Furthermore, a first motor is fixedly installed above the front of the coal sample crusher. The output end of the first motor extends into the inner cavity of the first crushing chamber and is fixedly connected to one end of the rotor. The other end of the rotor is rotatably installed in the inner cavity of the first crushing chamber.

[0008] Furthermore, impact-resistant liners are fixedly connected to both sides of the inner wall of the first crushing chamber. Impact-resistant crushing blocks are provided on the inner walls of the impact-resistant liners, and the impact-resistant crushing blocks are integrally formed with the impact-resistant liners.

[0009] Furthermore, two second motors are symmetrically installed below the front of the coal sample crusher. The output ends of the two second motors extend into the inner cavity of the second crushing chamber and are fixedly connected to one end of the first crushing roller and the second crushing roller. The other ends of the first crushing roller and the second crushing roller are rotatably installed on the inner wall of the second crushing chamber.

[0010] Furthermore, connecting frames are fixedly connected to both sides of the bottom of the coal sample crusher. The bottom ends of the connecting frames are fixedly connected to the top of the conveyor housing. A discharge port is provided in the middle of the bottom of the coal sample crusher. A guide pipe is fixedly connected to the middle of the bottom of the coal sample crusher. The top end of the guide pipe is located below the discharge port. The bottom end of the guide pipe is fixedly connected to the top of the conveyor housing. A feed port is provided on the left side of the top of the conveyor housing. The bottom end of the guide pipe is located above the feed port.

[0011] Furthermore, a third motor is fixedly installed at the left end of the conveyor housing. The output end of the third motor extends into the inner cavity of the conveyor housing and is fixedly connected to the left end of the main shaft. The right end of the main shaft is rotatably connected to the right end of the inner cavity of the conveyor housing. A discharge opening is provided at the right end of the bottom of the conveyor housing.

[0012] The technical effects and advantages of the present utility model:

[0013] By adopting the cooperation of the first crushing chamber, the rotor, the crushing hammer, the impact-resistant liner, the impact-resistant crushing block and the first motor, the present utility model facilitates the primary crushing of the coal sample. The coal sample after primary crushing falls into the second crushing chamber, and through the cooperation of the first crushing roller, the second crushing roller and the two second motors, the coal sample is subjected to secondary crushing, so that it is convenient to perform secondary crushing on the coal sample at one time, making the crushing of the coal sample more sufficient and improving the crushing efficiency.

[0014] By adopting the cooperation of the conveyor housing, the guide pipe, the feed port, the connecting frame, the third motor, the main shaft, the spiral conveying blade and the discharge port, the present utility model facilitates the conveying of the crushed coal sample, which is convenient for subsequent processing or storage of the coal sample. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0016] Figure 2 This is a schematic cross-sectional view of the overall structure of the present utility model.

[0017] Figure 3 This is a schematic cross-sectional view of the conveyor housing structure of the present utility model.

[0018] The reference numerals are: 1, coal sample crusher; 11, feed hopper; 12, inclined feeding port; 13, discharge port; 14, support frame; 2, first crushing chamber; 21, rotor; 22, crushing hammer; 23, impact-resistant lining plate; 24, impact-resistant crushing block; 25, first motor; 3, second crushing chamber; 31, first crushing roll; 32, second crushing roll; 33, second motor; 4, coal sample conveying mechanism; 41, conveyor housing; 42, guide pipe; 43, feed inlet; 44, connecting frame; 45, third motor; 46, main shaft; 47, spiral conveying blade; 48, discharge port. Specific embodiments

[0019] Next, the technical solutions in the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the present utility model. Additionally, the forms of each structure described in the following embodiments are merely examples, and a coal sample crushing mechanism with secondary crushing involved in the present utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present utility model. Embodiment

[0020] As Figures 1-3As shown in the figure, a coal sample crushing mechanism with secondary crushing includes a coal sample crusher 1. The interior of the coal sample crusher 1 is divided into a first crushing chamber 2 and a second crushing chamber 3. The first crushing chamber 2 is located above the second crushing chamber 3, and the lower part of the first crushing chamber 2 communicates with the upper part of the second crushing chamber 3. A rotor 21 is provided inside the first crushing chamber 2, and a plurality of crushing hammers 22 are fixedly installed on the outer wall of the rotor 21. Above the front of the coal sample crusher 1, a first motor 25 is fixedly installed. The output end of the first motor 25 extends into the inner cavity of the first crushing chamber 2 and is fixedly connected to one end of the rotor 21. The other end of the rotor 21 is rotatably installed in the inner cavity of the first crushing chamber 2. On both sides of the inner wall of the first crushing chamber 2, impact-resistant liners 23 are fixedly connected. Impact-resistant crushing blocks 24 are provided on the inner walls of the impact-resistant liners 23, and the impact-resistant crushing blocks 24 are integrally formed with the impact-resistant liners 23. Inside the second crushing chamber 3, a first crushing roller 31 and a second crushing roller 32 are symmetrically arranged. Below the front of the coal sample crusher 1, two second motors 33 are symmetrically installed. The output ends of the two second motors 33 extend into the inner cavity of the second crushing chamber 3 and are fixedly connected to one end of the first crushing roller 31 and the second crushing roller 32. The other ends of the first crushing roller 31 and the second crushing roller 32 are rotatably installed on the inner wall of the second crushing chamber 3. On the right side of the top of the coal sample crusher 1, an inclined feeding port 12 is opened. The bottom end of the inclined feeding port 12 communicates with one side above the inner cavity of the first crushing chamber 2. On the right side of the top of the coal sample crusher 1, a feeding hopper 11 is fixedly installed. The bottom of the feeding hopper 11 is located above the top end of the inclined feeding port 12. At the four corners of the bottom of the coal sample crusher 1, support frames 14 are fixedly installed.

[0021] In this embodiment, through the settings of the feeding hopper 11 and the inclined feeding port 12, it is convenient for the staff to add the coal samples to be crushed into the interior of the coal sample crusher 1. Through the settings of the first motor 25, the rotor 21 and the crushing hammers 22, it is convenient to rotate and strike the coal samples inside the first crushing chamber 2, so that the coal samples are crushed. At the same time, through the cooperation of the impact-resistant liners 23 and the impact-resistant crushing blocks 24, it is convenient to protect the interior of the first crushing chamber 2. When the coal samples move and collide with the impact-resistant crushing blocks 24 on the inner wall of the impact-resistant liners 23 during the striking process, they are further crushed, so as to perform primary crushing. After the coal samples in the first crushing chamber 2 are struck and crushed, they fall downward into the interior of the second crushing chamber 3. At this time, the two second motors 33 drive the first crushing roller 31 and the second crushing roller 32 to rotate relatively, and perform secondary crushing on the coal samples, so that the coal samples are crushed more fully. Embodiment

[0022] As Figures 1-3As shown in the figure, a coal sample conveyor mechanism 4 is provided below the coal sample crusher 1. The coal sample conveyor mechanism 4 includes a conveyor housing 41. The conveyor housing 41 is located below the coal sample crusher 1. A main shaft 46 is provided inside the conveyor housing 41. A spiral conveyor blade 47 is fixedly installed on the outer wall of the main shaft 46. A third motor 45 is fixedly installed at the left end of the conveyor housing 41. The output end of the third motor 45 extends into the inner cavity of the conveyor housing 41 and is fixedly connected to the left end of the main shaft 46. The right end of the main shaft 46 is rotatably connected to the right end of the inner cavity of the conveyor housing 41. A discharge port 48 is provided at the right end of the bottom of the conveyor housing 41. Connecting frames 44 are fixedly connected to both sides of the bottom of the coal sample crusher 1. The bottom ends of the connecting frames 44 are fixedly connected to the top of the conveyor housing 41. A discharge port 13 is provided in the middle of the bottom of the coal sample crusher 1. A guide pipe 42 is fixedly connected to the middle of the bottom of the coal sample crusher 1. The top end of the guide pipe 42 is located below the discharge port 13. The bottom end of the guide pipe 42 is fixedly connected to the top of the conveyor housing 41. A feed inlet 43 is provided on the left side of the top of the conveyor housing 41. The bottom end of the guide pipe 42 is located above the feed inlet 43.

[0023] In this embodiment, through the setting of the connecting frame 44, it is convenient to fix the conveyor housing 41 below the coal sample crusher 1. Through the settings of the discharge port 13, the guide pipe 42 and the feed inlet 43, it is convenient to discharge the crushed coal sample into the interior of the conveyor housing 41. At this time, through the setting of the third motor 45, it is convenient to drive the main shaft 46 and the spiral conveyor blade 47 to rotate, so that the coal sample inside the conveyor housing 41 is conveyed by the spiral rotation of the spiral conveyor blade 47 and discharged through the discharge port 48, which is convenient for subsequent processing or storage of the coal sample.

[0024] To sum up, as Figures 1-3 shown, when using this coal sample crushing mechanism with secondary crushing, first, the coal sample to be crushed is put into the first crushing chamber 2 inside the coal sample crusher 1 through the feed hopper 11 and the inclined feeding port 12. At this time, the first motor 25 drives the rotor 21 and the crushing hammers 22 to rotate. While rotating, the crushing hammers 22 strike the coal sample, causing the coal sample to be crushed. At the same time, during the striking process, the coal sample moves and collides with the impact-resistant crushing blocks 24 on the inner wall of the impact-resistant lining plate 23, further crushing occurs, achieving primary crushing. After the coal sample in the first crushing chamber 2 is broken by striking, it falls downward into the second crushing chamber 3. At this time, two second motors 33 drive the first crushing roller 31 and the second crushing roller 32 to rotate relatively inside the second crushing chamber 3 to perform secondary crushing on the coal sample. The crushed coal sample falls downward into the conveyor housing 41 through the discharge port 13, the guide pipe 42 and the feed inlet 43. At this time, the third motor 45 drives the main shaft 46 and the spiral conveyor blade 47 to rotate, so that the coal sample inside the conveyor housing 41 is conveyed and discharged through the discharge port 48, which is convenient for subsequent processing or storage of the coal sample.

[0025] The following points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and defined, the terms "installed", "connected", and "coupled" should be understood in a broad sense, which can be a mechanical connection or an electrical connection, or the communication inside two components, and can be directly connected. The terms "upper", "lower", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the object being described changes, the relative position relationship may change;

[0026] Second, in the drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0027] Finally, the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A coal sample crushing mechanism with secondary crushing, comprising a coal sample crusher (1), characterized in that: The interior of the coal sample crusher (1) is divided into a first crushing chamber (2) and a second crushing chamber (3), the first crushing chamber (2) is located above the second crushing chamber (3), the lower part of the first crushing chamber (2) is communicated with the upper part of the second crushing chamber (3), a rotor (21) is provided inside the first crushing chamber (2), a plurality of crushing hammers (22) are fixedly mounted on the outer wall of the rotor (21), a first crushing roller (31) and a second crushing roller (32) are symmetrically mounted inside the second crushing chamber (3), a coal sample conveying mechanism (4) is provided below the coal sample crusher (1), the coal sample conveying mechanism (4) includes a conveyor casing (41), the conveyor casing (41) is located below the coal sample crusher (1), a main shaft (46) is provided inside the conveyor casing (41), and a spiral conveying blade (47) is fixedly mounted on the outer wall of the main shaft (46).

2. The coal sample crushing mechanism with secondary crushing according to claim 1, characterized in that: The right side of the top of the coal sample crusher (1) is provided with an inclined feeding port (12), the bottom end of which is communicated with a side above the inner cavity of the first crushing cavity (2), a feed hopper (11) is fixedly installed on the right side of the top of the coal sample crusher (1), the bottom of which is located above the top of the inclined feeding port (12), and support frames (14) are fixedly installed at the four corners of the bottom of the coal sample crusher (1).

3. The coal sample crushing mechanism with secondary crushing according to claim 1, characterized in that: A No. 1 motor (25) is fixedly mounted above the front surface of the coal sample crusher (1); an output end of the No. 1 motor (25) extends to the inner cavity of the first crushing chamber (2) and is fixedly connected to one end of the rotor (21); and the other end of the rotor (21) is rotatably mounted in the inner cavity of the first crushing chamber (2).

4. The coal sample crushing mechanism with secondary crushing according to claim 1, characterized in that: Impact-resistant lining plates (23) are fixedly connected to both sides of the inner wall of the first crushing chamber (2), and the inner wall of the impact-resistant lining plate (23) is provided with collision-resistant crushing blocks (24), and the collision-resistant crushing blocks (24) are integrally formed with the impact-resistant lining plate (23).

5. The coal sample crushing mechanism with secondary crushing according to claim 1, characterized in that: Two No. 2 motors (33) are symmetrically installed below the front of the coal sample crusher (1), and the output ends of the two No. 2 motors (33) extend to the inner cavity of the second crushing chamber (3) and are fixedly connected to one end of the first crushing roller (31) and the second crushing roller (32), and the other ends of the first crushing roller (31) and the second crushing roller (32) are rotatably installed on the inner wall of the second crushing chamber (3).

6. The coal sample crushing mechanism with secondary crushing according to claim 1, characterized in that: The two sides of the bottom of the coal sample crusher (1) are fixedly connected with connecting frames (44), the bottom end of the connecting frame (44) is fixedly connected to the top of the conveyor housing (41), the middle part of the bottom of the coal sample crusher (1) is provided with a discharge port (13), the middle part of the bottom of the coal sample crusher (1) is fixedly connected with a guide pipe (42), the top end of the guide pipe (42) is located below the discharge port (13), the bottom end of the guide pipe (42) is fixedly connected to the top of the conveyor housing (41), the left side of the top of the conveyor housing (41) is provided with a feed port (43), and the bottom end of the guide pipe (42) is located above the feed port (43).

7. The coal sample crushing mechanism with secondary crushing according to claim 1, characterized in that: A No. 3 motor (45) is fixedly mounted on the left end of the conveyor housing (41); an output end of the No. 3 motor (45) extends to the inner cavity of the conveyor housing (41) and is fixedly connected to the left end of the main shaft (46); a right end of the main shaft (46) is rotatably connected to the right end of the inner cavity of the conveyor housing (41); and a discharge port (48) is provided at the right end of the bottom of the conveyor housing (41).

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