Sampling device for centrifugal machine of coal preparation plant

Abstract

The invention discloses a coal preparation plant centrifugal machine sampling device which comprises a supporting frame and a centrifugal machine body, the centrifugal machine body is fixed to the upper end face of the supporting frame, a fixing frame is fixed to the right side of the centrifugal machine body, an air cylinder is fixed to the fixing frame, a fixing plate is fixed to the output end of the air cylinder, and the fixing plate is connected with a sampling mechanism. According to the centrifugal machine sampling device for the coal preparation plant, in the using process of the device, a shifting plate can move backwards through leftward movement of a movable plate in cooperation with the action of a connecting rod, a mounting plate and a fixed rod, when the shifting plate makes contact with a protruding block backwards, the shifting plate normally rotates and moves to the rear side of the protruding block, and when the movable plate moves rightwards, the shifting plate is matched with the action of the protruding plate; according to the technical scheme, the positioning of the shifting plate can be realized, so that the shifting plate cannot rotate, the shifting plate provides an acting force for the convex block, the material storage box is further moved, the intermittent movement of the material storage box can be realized, the classified storage effect of samples sampled for multiple times is further realized, and subsequent detection is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of centrifuge sampling, in particular to a centrifuge sampling device for a coal preparation plant. Background Art

[0002] The centrifuge is currently used for coal screening in the coal mining process. During the centrifugal separation process, it is necessary to sample and test the coal screened in the centrifuge to identify the quality of the coal. Existing centrifuge sampling devices, such as a coal preparation plant centrifuge sampling device with publication number CN214702789U, are provided with a hollow tubular body, a sampling hole and a sampling hole, so that the use of a shovel to open the cover for sampling can be completely eliminated. On the other hand, the sampling rod, the push plate, the compression spring and the cam cooperate with each other, so that the sampling time can be shortened, and the sampling efficiency is effectively improved. At the same time, it can avoid the leakage of coal and the loss of clean coal, avoid safety hazards, and facilitate production operations; In actual use, the above-mentioned existing sampling device needs to be manually collected after each sampling is completed. In order to ensure the accuracy of the test data, multiple samplings are required. The existing device cannot realize the classified storage and collection of multiple samples. Therefore, in view of the above problems, a coal preparation plant centrifuge sampling device is designed to better meet the actual use needs. Summary of the invention

[0003] The object of the present invention is to provide a centrifuge sampling device for a coal preparation plant to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a centrifuge sampling device in a coal preparation plant, comprising a support frame and a centrifuge body, wherein the centrifuge body is fixed to the upper end surface of the support frame, a fixing frame is fixed to the right side of the centrifuge body, a cylinder is fixed to the fixing frame, a fixing plate is fixed to the output end of the cylinder, the fixing plate and the sampling mechanism are connected to each other, an adjusting mechanism is arranged on the side of the fixing plate, the adjusting mechanism comprises a movable plate, a sliding rod, a second spring, a connecting rod, a mounting plate, a fixing rod, a dial plate, a torsion spring, a vertical rod and a convex plate, the movable plate is arranged on the left side of the fixing plate, sliding rods are symmetrically fixed to the movable plate front and back, the sliding rods are slidably connected to the fixing plate, and a second spring is also fixed between the movable plate and the fixing plate. The movable plate is rotatably connected to a spring, and the other end of the connecting rod is rotatably connected to the mounting plate. The mounting plate is fixed with a fixing rod, and the fixing rod and the fixing frame are slidably connected. The lower end surface bearing of the mounting plate is connected with a dial plate, and a torsion spring is also connected between the dial plate and the mounting plate. A vertical rod is also fixed to the right end surface of the dial plate, and the vertical rod contacts with a convex plate to achieve limiting, and the convex plate is fixed to the lower end surface of the mounting plate. A sample storage mechanism is also installed on the fixed frame, and the sample storage mechanism includes a guide frame, a material storage box, a partition and a protrusion. The guide frame is fixed to the lower end surface of the fixed frame, and a material storage box is slidably connected to the guide frame, and partitions are fixed at equal intervals in the material storage box, and protrusions are also fixed at equal intervals on the material storage box.

[0005] Preferably, a vertical plate is fixed in the centrifuge body, and a discharge port is provided on the right side of the centrifuge body. Through the above structure, the normal centrifugal screening of coal can be ensured.

[0006] Preferably, a limiting plate is fixed symmetrically front and back on the fixing frame, and the limiting plate contacts the movable plate to achieve a limiting effect. The positioning of the movable plate by the limiting plate can ensure the normal operation of the device.

[0007] Preferably, the sampling mechanism includes a fixed box, a discharge port, a sampling frame, a cross bar, a baffle, a guide rod and a first spring. The fixed box is fixed on the centrifuge body, and a through hole is opened on the upper side of the fixed box, and the discharge port is installed on the lower side of the fixed box. Through the above structure, basic guarantee can be provided for the normal sampling of coal.

[0008] Preferably, the sampling frame is slidably connected in the fixed box, and one end of a cross bar is fixed on the sampling frame, and the other end of the cross bar is fixed on the fixed plate. At the same time, the cross bar is slidably connected to the fixed box and the movable plate. The sliding action of the cross bar can drive the sampling frame to move, thereby realizing automatic sampling of coal and automatic release of samples.

[0009] Preferably, a baffle is also slidably connected to the fixed box, and the baffle cooperates with the through hole on the upper side of the fixed box to achieve a shielding effect. Through the effect of the baffle, the through hole on the upper side of the fixed box can be shielded when no sampling is taking, thereby preventing coal from entering the fixed box and hindering the normal operation of the device.

[0010] Preferably, a guide rod is also fixed on the baffle, and the guide rod is slidably connected to the fixed box, and the distance between the left end of the guide rod and the inner left end of the fixed box is equal to the width of the sampling frame. When the baffle moves, the sliding guiding effect between the guide rod and the fixed box can ensure the stability of the baffle movement, and by limiting the distance between the left end of the guide rod and the inner left end of the fixed box, the normal sampling can be ensured.

[0011] Preferably, one end of a first spring is fixed on the baffle, and the other end of the first spring is fixed in the fixing box. The elastic action of the first spring can provide a basic force for the automatic reset of the baffle when the baffle is not acted upon by an external force.

[0012] Preferably, the front-to-back distance between the transverse center axis of the shift plate and the transverse center axis of the fixed box is equal to half the width of the protrusion. By limiting the front-to-back distance between the transverse center axis of the shift plate and the transverse center axis of the fixed box, it can be ensured that the storage space of the storage box can be located directly below the discharge port each time it moves, thereby ensuring normal sample storage.

[0013] Preferably, the protrusion contacts the dial plate and can move forward, and each movement distance of the protrusion is greater than the distance between two adjacent protrusions. By limiting the movement distance of the protrusion, a basic guarantee can be provided for realizing the storage of multiple samples.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. The centrifuge sampling device of the coal preparation plant, during the use of the device, the movable plate is moved to the left, and the action of the connecting rod, the mounting plate and the fixed rod can make the paddle plate move backward. When the paddle plate contacts the convex block backward, the paddle plate rotates normally and moves to the rear side of the convex block. When the movable plate is moved to the right, the action of the convex plate can realize the positioning of the paddle plate, so that the paddle plate cannot rotate, so that the paddle plate provides a force on the convex block, and then the material storage box moves, so that the material storage box can be intermittently moved, and then the classification and storage of samples taken multiple times can be realized for subsequent detection; 2. The coal preparation plant centrifuge sampling device can move the sampling frame through the action of the cylinder, the fixed plate and the cross bar during sampling. With the action of the baffle, the guide rod and the first spring, the upper through hole of the fixed box can be opened during sampling, and the upper through hole of the fixed box can be covered after sampling. This can ensure the normal sampling and prevent the sample from entering the fixed box and hindering the normal operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall side view of the stereoscopic structure of the device of the present invention; Figure 2 It is a schematic diagram of the overall front view cross-section of the three-dimensional structure of the device of the present invention; Figure 3 This is a schematic diagram of the front three-dimensional structure of the fixing frame of the present invention; Figure 4 This is a schematic diagram of the three-dimensional structure of the fixing frame of the present invention when viewed from above; Figure 5 This is a schematic diagram of the three-dimensional structure of the sampling frame of the present invention when viewed from above; Figure 6 It is a schematic diagram of the three-dimensional structure composed of the adjusting mechanism and the sample storage mechanism of the present invention; Figure 7 It is a bottom-up three-dimensional structural schematic diagram of the adjusting mechanism of the present invention.

[0016] In the figure: 1, support frame; 2, centrifuge body; 201, vertical plate; 202, discharge port; 3, fixed frame; 301, limit plate; 4, cylinder; 5, fixed plate; 6, sampling mechanism; 601, fixed box; 602, discharge port; 603, sampling frame; 604, cross bar; 605, baffle; 606, guide rod; 607, first spring; 7, adjustment mechanism; 701, movable plate; 702, slide bar; 703, second spring; 704, connecting rod; 705, mounting plate; 706, fixed rod; 707, dial plate; 708, torsion spring; 709, vertical rod; 710, convex plate; 8, sample storage mechanism; 801, guide frame; 802, storage box; 803, partition; 804, convex block. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] See also Figure 1-Figure 7 The present invention provides a technical solution: a centrifuge sampling device for a coal preparation plant, comprising a support frame 1 and a centrifuge body 2, the centrifuge body 2 is fixed on the upper end surface of the support frame 1, a fixing frame 3 is fixed on the right side of the centrifuge body 2, a cylinder 4 is fixed on the fixing frame 3, a fixing plate 5 is fixed on the output end of the cylinder 4, the fixing plate 5 is connected to a sampling mechanism 6, and an adjusting mechanism 7 is arranged on the side of the fixing plate 5.

[0019] A vertical plate 201 is also fixed in the centrifuge body 2, and a discharge port 202 is opened on the right side of the centrifuge body 2; the sampling mechanism 6 includes a fixed box 601, a discharge port 602, a sampling frame 603, a cross bar 604, a baffle 605, a guide rod 606 and a first spring 607, the fixed box 601 is fixed on the centrifuge body 2, and a through hole is opened on the upper side of the fixed box 601, and the discharge port 602 is installed on the lower side of the fixed box 601; the sampling frame 603 is slidably connected in the fixed box 601, and one end of the cross bar 604 is also fixed on the sampling frame 603, and the other end of the cross bar 604 is fixed to the fixed plate 5, and the cross bar 604 is slidably connected to the fixed box 601 and the movable plate 701; a baffle 605 is slidably connected in the fixed box 601, and the baffle 605 cooperates with the through hole on the upper side of the fixed box 601 to achieve a shielding effect; a guide rod 606 is also fixed on the baffle 605, and the guide rod 606 is slidably connected to the fixed box 601, and the distance between the left end of the guide rod 606 and the left end of the inner side of the fixed box 601 is equal to the width of the sampling frame 603; one end of a first spring 607 is also fixed on the baffle 605, and the other end of the first spring 607 is fixed in the fixed box 601; When using the centrifuge sampling device in the coal preparation plant, if Figure 1-Figure 7 As shown, when sampling is performed, the cylinder 4 is controlled to extend, thereby driving the fixed plate 5, the cross bar 604 and the sampling frame 603 to move to the left. When the sampling frame 603 moves to contact the baffle 605, the cylinder 4 continues to extend, so that the sampling frame 603 pushes the baffle 605 to move, and the sliding guide effect between the guide rod 606 and the fixed box 601 can ensure the stability of the movement of the baffle 605. At this time, the first spring 607 is forced to shrink. When the baffle 605 moves, the shielding effect on the upper through hole of the fixed box 601 can be released, so that the coal can pass through the upper through hole of the fixed box 601 to enter the sampling frame 603, thereby realizing the sampling of the coal, until the left end of the guide rod 606 is in contact with the fixed box 601. The fixed box 601 is contacted to achieve positioning. At this time, the sampling frame 603 is just below the through hole at the upper end of the fixed box 601 to ensure the normal sampling. After the sampling is completed, the fixed plate 5, the cross bar 604 and the sampling frame 603 can be driven to move to the right through the contraction of the cylinder 4. At this time, the baffle 605 can be reset through the elastic action of the first spring 607 to achieve the shielding of the through hole at the upper end of the fixed box 601, so as to avoid the complete sampled coal from entering the fixed box 601 to hinder the normal operation of the device. When the sampling frame 603 drives the sample coal to move to cooperate with the discharge port 602, the sample coal can be automatically unloaded, and the coal falls into the storage space on the storage box 802 for storage, so as to be tested later. The adjusting mechanism 7 comprises a movable plate 701, a sliding rod 702, a second spring 703, a connecting rod 704, a mounting plate 705, a fixed rod 706, a dial plate 707, a torsion spring 708, a vertical rod 709 and a convex plate 710. The movable plate 701 is arranged on the left side of the fixed plate 5. The sliding rod 702 is symmetrically fixed to the movable plate 701 in the front and rear directions. The sliding rod 702 is slidably connected to the fixed plate 5. The second spring 703 is also fixed between the movable plate 701 and the fixed plate 5. One end of the connecting rod 704 is rotatably connected to the movable plate 701, and the other end of the connecting rod 704 is rotatably connected to the mounting plate 705. The fixing rod 706 is fixed to the mounting plate 705, and the fixing rod 706 is slidably connected to the fixing frame 3. The lower end surface bearing of the mounting plate 705 is connected to the dial plate 707. A torsion spring 708 is also connected between the dial plate 707 and the mounting plate 705. The vertical rod 709 is also fixed to the right end surface of the dial plate 707. , the vertical rod 709 contacts with the convex plate 710 to achieve limiting, the convex plate 710 is fixed to the lower end surface of the mounting plate 705, and a sample storage mechanism 8 is also installed on the fixed frame 3, and the sample storage mechanism 8 includes a guide frame 801, a storage box 802, a partition 803 and a convex block 804, the guide frame 801 is fixed to the lower end surface of the fixed frame 3, and the guide frame 801 is slidably connected with the storage box 802, and the partitions 803 are fixed at equal intervals in the storage box 802, and the storage box 802 is also fixed with convex blocks 804 at equal intervals; the fixed frame 3 is also symmetrically fixed with a limiting plate 301 front and back, and the limiting plate 301 contacts with the movable plate 701 to achieve limiting effect; the front-to-back distance between the transverse central axis of the dial plate 707 and the transverse central axis of the fixed box 601 is equal to half the width of the convex block 804; the convex block 804 contacts with the dial plate 707 and can move forward, and the distance moved by the convex block 804 each time is greater than the distance between two adjacent convex blocks 804. During the sampling process, Figure 1-Figure 7As shown, at this time, the second spring 703 is in a contracted state. When sampling is performed, the cylinder 4 is controlled to extend, thereby driving the fixed plate 5 and the sampling frame 603 to move to the left. At this time, the second spring 703 is reset under the action of its own elasticity, that is, when the fixed plate 5 moves to the left, the movable plate 701 remains in contact with the limiting plate 301 and does not move. At this time, the fixed plate 5 moves relative to the movable plate 701. When the sampling frame 603 contacts the baffle 605, and the right side of the sampling frame 603 is separated from the discharge port 602, the second spring 703 just returns to a normal state, and the fixed plate 5 just contacts the movable plate 701. At this time, the cylinder 4 continues to extend, thereby The fixed plate 5, the sampling frame 603 and the movable plate 701 can be driven to move to the left. When the movable plate 701 moves, the transmission action of the connecting rod 704 and the sliding action between the fixing rod 706 and the fixing frame 3 make the mounting plate 705 slide backward, thereby synchronously driving the dial plate 707 to move backward. When the dial plate 707 contacts the protrusion 804, the dial plate 707 is rotated by force until the dial plate 707 moves to the rear side of the protrusion 804. At this time, under the action of the torsion spring 708, the dial plate 707 is reset, and the sampling frame 603 just matches with the through hole at the upper end of the fixed box 601 to realize the coal sampling function. When the sampling is completed, the cylinder 4 contracts and the belt When the movable fixed plate 5, the sampling frame 603 and the movable plate 701 move to the right, according to the above principle, the mounting plate 705 and the dial plate 707 can be moved forward. At this time, due to the limiting effect between the convex plate 710 and the vertical rod 709, the dial plate 707 cannot rotate. When the dial plate 707 moves forward and contacts the protrusion 804, the protrusion 804 is forced to move forward, thereby driving the storage box 802 to slide on the guide frame 801. When the right end face of the sampling frame 603 contacts the left end face of the discharge port 602, the movable plate 701 keeps in contact with the limiting plate 301 to achieve limiting, and at this time, the first storage space on the front side of the storage box 802 is just moved to the discharge port. 602 is directly below, and the cylinder 4 continues to contract to drive the fixed plate 5 and the sampling frame 603 to move. At this time, the second spring 703 is forced to contract. When the sampling frame 603 cooperates with the discharge port 602, the coal sample falls into the first storage space on the front side of the storage box 802 for storage. According to the above principle, multiple sampling effects can be achieved by controlling the cylinder 4 to extend and retract multiple times, and during the sampling process, the storage box 802 is moved forward intermittently, so that the multiple storage spaces on the storage box 802 cooperate with the discharge port 602 in turn, thereby realizing the classification and storage of multiple samples for subsequent detection. This is the working principle of the centrifuge sampling device of the coal preparation plant.

[0020] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A centrifuge sampling device for a coal preparation plant, comprising a support frame (1) and a centrifuge body (2), wherein the centrifuge body (2) is fixed to the upper end surface of the support frame (1), characterized in that: A fixing frame (3) is fixed on the right side of the centrifuge body (2), a cylinder (4) is fixed on the fixing frame (3), a fixing plate (5) is fixed on the output end of the cylinder (4), the fixing plate (5) is connected to the sampling mechanism (6), an adjusting mechanism (7) is arranged on the side of the fixing plate (5), and the adjusting mechanism (7) comprises a movable plate (701), a sliding rod (702), a second spring (703), a connecting rod (704), a mounting plate (705), a fixing rod (706), a dial plate (707), The movable plate (701) is provided on the left side of the fixed plate (5), and sliding rods (702) are fixed to the movable plate (701) symmetrically in the front and rear directions. The sliding rods (702) are slidably connected to the fixed plate (5). A second spring (703) is also fixed between the movable plate (701) and the fixed plate (5). One end of a connecting rod (704) is rotatably connected to the movable plate (701), and the other end of the connecting rod (704) is rotatably connected to the movable plate (701). A fixing rod (706) is fixed on the mounting plate (705), the fixing rod (706) is slidably connected to the fixing frame (3), a shift plate (707) is connected to the bearing on the lower end surface of the mounting plate (705), a torsion spring (708) is further connected between the shift plate (707) and the mounting plate (705), a vertical rod (709) is further fixed to the right end surface of the shift plate (707), the vertical rod (709) contacts with a convex plate (710) to achieve position limiting, and the convex plate (710) is fixed on The fixing frame (3) is also provided with a sample storage mechanism (8), the sample storage mechanism (8) comprising a guide frame (801), a material storage box (802), a partition (803) and a protrusion (804). The guide frame (801) is fixed to the lower end surface of the fixing frame (3). The material storage box (802) is slidably connected to the guide frame (801). The material storage box (802) has partitions (803) fixed at equal intervals in the material storage box (802). The material storage box (802) also has protrusions (804) fixed at equal intervals.

2. A coal preparation plant centrifuge sampling device according to claim 1, characterized in that: A vertical plate (201) is also fixed inside the centrifuge body (2), and a discharge port (202) is provided on the right side of the centrifuge body (2).

3. A coal preparation plant centrifuge sampling device according to claim 1, characterized in that: A limiting plate (301) is also fixed to the fixing frame (3) symmetrically in the front and rear directions, and the limiting plate (301) is in contact with the movable plate (701) to achieve a limiting effect.

4. A coal preparation plant centrifuge sampling device according to claim 1, characterized in that: The sampling mechanism (6) comprises a fixed box (601), a discharge port (602), a sampling frame (603), a cross bar (604), a baffle (605), a guide rod (606) and a first spring (607); the fixed box (601) is fixed on the centrifuge body (2); a through hole is provided on the upper side of the fixed box (601); and the discharge port (602) is installed on the lower side of the fixed box (601).

5. A coal preparation plant centrifuge sampling device according to claim 4, characterized in that: The sampling frame (603) is slidably connected in the fixed box (601), and one end of a cross bar (604) is fixed to the sampling frame (603), and the other end of the cross bar (604) is fixed to the fixed plate (5), and the cross bar (604) is slidably connected to the fixed box (601) and the movable plate (701).

6. A coal preparation plant centrifuge sampling device according to claim 4, characterized in that: A baffle (605) is also slidably connected inside the fixed box (601), and the baffle (605) cooperates with the through hole on the upper side of the fixed box (601) to achieve a shielding effect.

7. A coal preparation plant centrifuge sampling device according to claim 4, characterized in that: A guide rod (606) is also fixed on the baffle (605), and the guide rod (606) is slidably connected to the fixed box (601), and the distance between the left end of the guide rod (606) and the inner left end of the fixed box (601) is equal to the width of the sampling frame (603).

8. A coal preparation plant centrifuge sampling device according to claim 4, characterized in that: One end of a first spring (607) is also fixed on the baffle (605), and the other end of the first spring (607) is fixed in the fixing box (601).

9. A coal preparation plant centrifuge sampling device according to claim 1, characterized in that: The front-to-rear distance between the transverse central axis of the dial plate (707) and the transverse central axis of the fixed box (601) is equal to half the width of the protrusion (804).

10. A coal preparation plant centrifuge sampling device according to claim 1, characterized in that: The protrusion (804) can move forward when in contact with the dial plate (707), and the distance each time the protrusion (804) moves is equal to the distance between two adjacent protrusions (804).

Images