Safe sampling device for centrifugal machine in coal preparation plant

Abstract

The utility model discloses a safe sampling device for a centrifugal machine in a coal preparation plant, and relates to the technical field of sampling. The centrifugal machine comprises a centrifugal machine body, a machine cover used for opening and closing a charging barrel is arranged on the upper portion of the centrifugal machine body, a sampling assembly used for sampling the charging barrel in the centrifugal machine body is arranged above the centrifugal machine body, and a clamping assembly used for fixing the sampling assembly is arranged on the peripheral side of the centrifugal machine body. The clamping assembly is provided with an adjusting assembly used for controlling the position and angle of the sampling assembly. Through the arrangement of the clamping assembly, the sampling device can be connected to unmodified centrifugal machine equipment through simple operation, then the sampling assembly is controlled to sample raw materials in the centrifugal machine main body, and the centrifugal machine does not need to be additionally modified, so that the sampling efficiency is improved, and the possibility of faults is reduced; compared with an existing sampling device, the adaptive range is wider, and due to the detachable arrangement, repair and maintenance work can be conveniently carried out.

Description

Technical Field

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

[0002] When a coal preparation plant conducts coal screening, a centrifuge is used. During the centrifugal separation process of the centrifuge, a sampling device is required to sample the screened coal material to verify the quality of the coal material. Existing patents CN220356687U and CN214702789U both propose a sampling device for a centrifuge in a coal preparation plant, and a sampling device with telescopic sampling is inserted on one side of the centrifuge. However, the adaptability of the above sampling devices is not good, and the existing centrifuge needs to be modified to open a through hole suitable for the use of the sampling device. Limited by the quality of the modification, there is a risk of unstable installation, which in turn leads to a decrease in sampling efficiency and an increase in the risk of failure.

[0003] Therefore, a safety sampling device for a centrifuge in a coal preparation plant is proposed. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a safety sampling device for a centrifuge in a coal preparation plant to solve the above problems.

[0005] The utility model specifically adopts the following technical solutions to achieve the above purpose:

[0006] A safety sampling device for a centrifuge in a coal preparation plant includes a centrifuge main body. The upper part of the centrifuge main body is provided with a machine cover for opening and closing a feed cylinder. Above the centrifuge main body, a sampling component for sampling the feed cylinder in the centrifuge main body is arranged. On the periphery of the centrifuge main body, a clamping component for fixing the sampling component is arranged. On the clamping component, an adjustment component for controlling the position and angle of the sampling component is arranged.

[0007] The clamping component includes two semi-circular attaching rings. The concave surfaces of the two attaching rings are distributed corresponding to both sides of the centrifuge main body. One end of each of the two attaching rings is respectively connected with a plug rod and a screw rod. The plug rod is slidably connected to the other attaching ring, and the screw rod is threadedly connected to the other attaching ring.

[0008] Furthermore, the sampling component includes a sampling cylinder. The outer wall of the bottom side of the sampling cylinder is provided with a feed port. A sampling column is sleeved inside the sampling cylinder. A plurality of storage grooves are annularly arranged on the outer wall of the sampling column corresponding to the position of the feed port. At the top of the sampling cylinder, a driving motor for driving the sampling column to rotate to switch the sampling of the storage grooves is installed. The transmission shaft of the driving motor is connected to the sampling column.

[0009] Furthermore, the adjustment component includes a base. The number of bases is two and they are respectively connected to two attaching rings. An opening is provided on the base and a rotating rod is rotatably installed thereon. A first rotating motor for driving the rotating rod to rotate is installed on one of the bases. Linear guide rails are provided at the tops of the corresponding surfaces of the two rotating rods. A slider is slidably installed on the linear guide rails. The sampling cylinder is arranged at the bottom of the slider.

[0010] Furthermore, a telescopic motor is installed on the slider, and the transmission shaft of the telescopic motor is connected to the sampling cylinder.

[0011] Furthermore, a through hole is formed on one side of the slider and a lifting guide rod is inserted therein. The bottom end of the lifting guide rod is connected to the sampling cylinder.

[0012] Furthermore, the linear guide rail is rotatably connected to the rotating rod. A second rotating motor for driving the linear guide rail to rotate to adjust the angle of the sampling cylinder is installed on one of the rotating rods, and the transmission shaft of the second rotating motor is connected to the linear guide rail.

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

[0014] 1. Through the setting of the clamping component, the present utility model can be connected to an unmodified centrifuge device through simple operations, and then the sampling component is controlled to sample the raw materials in the centrifuge main body. There is no need to modify the centrifuge additionally, thereby improving the sampling efficiency and reducing the possibility of failures. The adaptation range is wider than that of existing sampling devices, and the detachable setting facilitates the carrying out of repair and maintenance work.

[0015] 2. Through the setting of the adjustment component, during sampling, the sampling position and depth can be freely selected, improving the flexibility of the sampling work. Moreover, after sampling, the sampling component can be moved to the outside of the centrifuge main body, avoiding obstruction to the use of the centrifuge main body and facilitating the dumping and collection of the sampled raw materials.

[0016] 3. Through the setting of the sampling component, by controlling the selection of the sampling column to switch the storage tank corresponding to the feed inlet, and in cooperation with the adjustment component, it is possible to batch-collect the raw materials at different positions and angles before sampling, thereby further improving the sampling efficiency and the sampling quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural diagram of the present utility model before use;

[0018] Figure 2 is a schematic structural diagram of the present utility model during use;

[0019] Figure 3 is a schematic structural diagram of the clamping component of the present utility model;

[0020] Figure 4 This is a schematic structural view of the sampling cylinder of the present utility model;

[0021] Reference numerals: 1, centrifuge main body; 2, machine cover; 3, attaching ring; 4, inserting rod; 5, screw rod; 6, sampling cylinder; 7, feeding port; 8, sampling column; 9, storage tank; 10, driving motor; 11, base; 12, rotating rod; 13, first rotating motor; 14, linear guide rail; 15, slider; 16, telescopic motor; 17, lifting guide rod; 18, second rotating motor. Detailed implementation manners

[0022] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Generally, the components of the embodiments of the present utility model described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents selected embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts fall within the scope of protection of the present utility model.

[0024] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, the terms "first", "second", etc. are only used for descriptive distinction and cannot be understood as indicating or implying relative importance.

[0025] In the description of the embodiments of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "inner", "outer", "upper", etc. is based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use. It is only for the convenience of describing the present utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present utility model.

[0026] Such as Figures 1-4As shown in the figure, a safety sampling device for a coal preparation plant centrifuge includes a centrifuge main body 1. A machine cover 2 for opening and closing the material cylinder is provided on the upper part of the centrifuge main body 1. A sampling assembly for sampling the material cylinder inside the centrifuge main body 1 is arranged above the centrifuge main body 1. A clamping assembly for fixing the sampling assembly is arranged on the periphery of the centrifuge main body 1. An adjustment assembly for controlling the position and angle of the sampling assembly is arranged on the clamping assembly. The clamping assembly includes two semi-circular attaching rings 3. The concave surfaces of the two attaching rings 3 are distributed corresponding to both sides of the centrifuge main body 1. One end of each of the two attaching rings 3 is respectively connected with a plug rod 4 and a screw rod 5. The plug rod 4 is slidably connected to the other attaching ring 3, and the screw rod 5 is threadedly connected to the other attaching ring 3. A magnet is arranged at the bottom of the attaching ring 3.

[0027] As Figure 3 and Figure 4 shown in the figure, the sampling assembly includes a sampling cylinder 6. A feed inlet 7 is opened on the outer wall of the bottom side of the sampling cylinder 6. A sampling column 8 is sleeved inside the sampling cylinder 6. A plurality of storage grooves 9 are annularly opened on the outer wall of the sampling column 8 corresponding to the position of the feed inlet 7. A driving motor 10 for driving the sampling column 8 to rotate to switch the sampling of the storage grooves 9 is installed on the top of the sampling cylinder 6. The driving motor 10 is a three-phase asynchronous motor. The transmission shaft of the driving motor 10 is connected to the sampling column 8. The rotation angle of the sampling column 8 is detected and controlled by a sensor. This is a known technology in the art and will not be elaborated here.

[0028] As Figure 3 shown in the figure, the adjustment assembly includes two bases 11 which are respectively connected to the two attaching rings 3. An opening is provided on the base 11 and a rotating rod 12 is rotatably installed. A rotating motor one 13 for driving the rotating rod 12 to rotate is installed on one of the bases 11. The rotating motor one 13 is a three-phase asynchronous motor. The top ends of the corresponding surfaces of the two rotating rods 12 are provided with linear guide rails 14. A slider 15 is slidably installed on the linear guide rails 14. The sampling cylinder 6 is arranged at the bottom of the slider 15. It should be noted that the rotation amplitude of the rotating rod 12 is also detected and controlled by a sensor, and its specific detection range is set according to the needs of those skilled in the art.

[0029] A telescopic motor 16 is installed on the slider 15. The transmission shaft of the telescopic motor 16 is connected to the sampling cylinder 6.

[0030] A through hole is opened on one side of the slider 15 and a lifting guide rod 17 is inserted. The bottom end of the lifting guide rod 17 is connected to the sampling cylinder 6.

[0031] The linear guide rail 14 is rotatably connected to the rotating rod 12. A rotating motor two 18 is installed on one of the rotating rods 12. The rotating motor two 18 is a three-phase asynchronous motor. The transmission shaft of the rotating motor two 18 is connected to the linear guide rail 14. It should be noted that the rotation amplitude of the linear guide rail 14 is also detected and controlled by a sensor.

[0032] Working principle: Before use: First, put the sticker ring 3 around the circumference of the machine cover 2, tighten the screw rod 5 to make the two sticker rings 3 approach each other, thereby clamping and fixing the barrel of the centrifuge main body 1. Push the slider 15 to slide on the linear guide rail 14 to adjust the front and rear orientation of the sampling cylinder 6, so as to correspond to the required sampling position during sampling.

[0033] During use: First, open the machine cover 2, rotate the first motor 13 to move the rotating rod 12 from the outside of the centrifuge main body 1 to the upper side of the centrifuge main body 1. Rotate the second motor 18 to drive the linear guide rail 14 to rotate, and the sampling cylinder 6 rotates with the linear guide rail 14 to adjust the angle inserted into the centrifuge main body 1. Then start the telescopic motor 16 to drive the sampling cylinder 6 to descend, so that the sampling cylinder 6 is inserted into the centrifuge main body 1 to sample the raw material. Drive the sampling column 8 to rotate through the drive motor 10 to switch the storage tank 9 corresponding to the feed inlet 7, and cooperate with the adjustment and control of the position of the sampling cylinder 6 by the first motor 13, the second motor 18 and the linear guide rail 14 to sample the raw materials at different positions in the centrifuge main body 1 respectively.

[0034] After use: The telescopic motor 16 drives the sampling cylinder 6 to rise to move out of the centrifuge main body 1. Then the first motor 13 drives the rotating rod 12 and other structures to move to one side of the centrifuge main body 1. After closing the machine cover 2, the second motor 18 drives the linear guide rail 14 to rotate to tilt the feed inlet 7, and the drive motor 10 drives the sampling column 8 to rotate to pour out the sampled raw material in the storage tank 9 through the feed inlet 7.

[0035] The above shows and describes the basic principle, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection required by the present invention is defined by the appended claims and their equivalents.

Claims

1. A coal preparation plant centrifuge safety sampling device, comprising a centrifuge body (1), the upper part of the centrifuge body (1) is provided with a cover (2) for opening and closing a barrel, characterized in that: A sampling assembly for sampling the barrel in the centrifuge body (1) is arranged above the centrifuge body (1), a clamping assembly for fixing the sampling assembly is arranged on the peripheral side of the centrifuge body (1), and an adjustment assembly for controlling the position and angle of the sampling assembly is arranged on the clamping assembly; The clamping assembly comprises two sticking rings (3), the number of the sticking rings (3) being two and both being semi-circular, the concave surfaces of the two sticking rings (3) corresponding to the two sides of the centrifuge body (1), the two ends of one of the sticking rings (3) being respectively connected with an insertion rod (4) and a screw rod (5), the insertion rod (4) being slidably connected to the sticking ring (3) on the other side, and the screw rod (5) being threadedly connected to the sticking ring (3) on the other side.

2. A coal preparation plant centrifuge safety sampling device according to claim 1, characterized in that: The sampling assembly comprises a sampling cylinder (6), a feed port (7) is provided on the bottom outer wall of the sampling cylinder (6), a sampling column (8) is sleeved inside the sampling cylinder (6), a plurality of material storage grooves (9) are provided in an annular manner on the outer wall of the sampling column (8) corresponding to the feed port (7), a driving motor (10) is installed on the top of the sampling cylinder (6) for driving the sampling column (8) to rotate so as to switch the material storage groove (9) for sampling, and a transmission shaft of the driving motor (10) is connected to the sampling column (8).

3. A coal preparation plant centrifuge safety sampling device according to claim 2, characterized in that: The adjustment assembly comprises a base (11), wherein the number of the bases (11) is two and the bases (11) are connected to two adhesive rings (3) respectively, an opening is provided on the base (11) and a rotating rod (12) is rotatably mounted thereon, a rotating motor (13) for driving the rotating rod (12) to rotate is mounted on one of the bases (11), a linear guide rail (14) is provided at the top end of the corresponding surfaces of the two rotating rods (12), a sliding block (15) is slidably mounted on the linear guide rail (14), and a sampling cylinder (6) is arranged at the bottom of the sliding block (15).

4. A coal preparation plant centrifuge safety sampling device according to claim 3, characterized in that: A telescopic motor (16) is installed on the sliding block (15), and a transmission shaft of the telescopic motor (16) is connected to the sampling cylinder (6).

5. A coal preparation plant centrifuge safety sampling device according to claim 4, characterized in that: A through hole is provided on one side of the sliding block (15) and a lifting guide rod (17) is inserted therein, and the bottom end of the lifting guide rod (17) is connected to the sampling tube (6).

6. A coal preparation plant centrifuge safety sampling device according to claim 4, characterized in that: The linear guide rail (14) is rotatably connected to the rotating rod (12), and a second rotating motor (18) is installed on one of the rotating rods (12) for driving the linear guide rail (14) to rotate to adjust the angle of the sampling tube (6), and the transmission shaft of the second rotating motor (18) is connected to the linear guide rail (14).

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