Cement sampling device

Abstract

The utility model relates to the technical field of cement sampling, and discloses a cement sampling device. The cement sampling device comprises a connecting pipe, a baffle is fixedly installed in the connecting pipe, an adapting pipe is fixedly installed below the connecting pipe, a fixing frame is fixedly installed in the adapting pipe, a fixing pipe is fixedly installed in the center of the fixing frame, a piston is installed in the fixing pipe in a penetrating and inserting mode, and the connecting pipe is fixedly installed in the connecting pipe. A plug is fixedly installed at the top end of the piston, a conveying pipe is fixedly installed below the adapting pipe, the plug is movably connected with the fixing pipe through the piston, the plug is made of rubber and of a conical structure, the diameter of the bottom end of the plug is larger than the outer diameter of the fixing pipe, and the plug is located under the opening structure of the connecting pipe. The plug is driven by the piston to move upwards, so that the plug penetrates through the opening structure at the bottom of the connecting pipe, a cement board structure blocked at the opening structure of the connecting pipe is damaged, and cement is prevented from blocking the sampling hole.

Description

Technical Field

[0001] This utility model relates to the field of cement sampling technology, specifically a cement sampling device. Background Technology

[0002] Fineness control of cement grinding systems mainly includes indicators such as specific surface area, sieve residue, and particle size distribution. Among them, laser particle size distribution is one of the commonly used detection methods at home and abroad. Laser particle size detection is divided into offline detection and online detection. Online detection is carried out during the grinding process by collecting cement samples through a sampling device into an online particle size analyzer.

[0003] The existing Chinese utility model patent with publication number CN209945790U discloses a cement powder sampling device. The first sampling tube in the spiral sampler is located in the conveying chute and has multiple first sampling holes. The first end of the first sampling tube has a discharge hole. A spiral blade shaft is rotatably installed in the first sampling tube and connected to the output shaft of a motor. The two ends of the conveying tube are respectively connected to the discharge hole and the interior of the conveying chute. The second sampling tube in the first small-hole sampler is located in the conveying tube and has a second sampling hole. A first high-pressure air supply mechanism is connected to the first end of the second sampling tube, and the middle part of a first venturi tube is connected to the second end of the second sampling tube. This utility model's sampling device has two samplers. After the cement powder enters the first sampling tube, it is mixed by the agitation of the spiral blade shaft, ensuring a uniform particle size distribution of the powder exiting through the discharge hole. This provides favorable conditions for the small-hole sampler, ultimately greatly improving the representativeness of the small-hole sampling.

[0004] Existing sampling devices typically add small holes to the surface of cement conveying pipes for sampling. Due to the tendency of powder to caking, this method may cause the powder to caking at the sampling holes, affecting normal sampling. At the same time, cement is generally transported by gas, and existing sampling devices usually have an open structure at the end to remove the sample. This method may affect the air pressure inside the conveying pipe when removing the sample, which may cause the air pressure in the conveying pipe to drop, causing the cement to stop moving and resulting in cement accumulation inside the conveying pipe. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the shortcomings of the prior art, this utility model provides a cement sampling device, which has the advantages of avoiding clogging of the sampling hole and avoiding affecting the internal air pressure of the delivery pipeline, thus solving the above-mentioned technical problems.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a cement sampling device, comprising: a connecting pipe, a baffle fixedly installed inside the connecting pipe, a receiving pipe fixedly installed below the connecting pipe, a fixing frame fixedly installed inside the receiving pipe, a fixing pipe fixedly installed at the center of the fixing frame, a piston inserted inside the fixing pipe, a plug fixedly installed at the top of the piston, a conveying pipe fixedly installed below the receiving pipe, caps fixedly installed at both ends of the conveying pipe, a bearing fitted into the center of the cap, an end cap fixedly installed at the right end of the bearing, a drive shaft inserted into the center of the bearing, an auger fixedly installed on the outside of the drive shaft, a conveying motor fixedly installed at the left end of the drive shaft, a connecting frame inserted into the outside of the conveying motor, and a sample bottle inserted into the bottom end of the conveying pipe; the baffle facilitates cement entry into the receiving pipe.

[0009] As a preferred embodiment of this utility model, flange structures are provided at both ends of the connecting pipe, and an opening structure is provided below the surface of the connecting pipe. The baffle is fixedly installed on the rear side of the opening below the connecting pipe. The connecting pipe can communicate with the cement conveying pipeline, thereby facilitating cement sampling.

[0010] As a preferred technical solution of this utility model, the top end of the receiving pipe is provided with a recessed structure that fits into the outside of the connecting pipe, and the receiving pipe is connected to the cavity of the connecting pipe through an opening structure below the surface of the connecting pipe; the receiving pipe facilitates cement to enter the conveying pipe.

[0011] As a preferred technical solution of this utility model, the fixed pipe is fixedly connected to the receiving pipe through the fixed bracket, and the plug is movably connected to the fixed pipe through the piston. The plug is made of rubber, has a conical structure, and the bottom diameter of the plug is larger than the outer diameter of the fixed pipe. The plug is located directly below the opening structure of the connecting pipe. The plug can close the opening structure below the connecting pipe.

[0012] As a preferred embodiment of this utility model, the caps are symmetrically installed at both ends of the conveying pipe with the center of the conveying pipe as a reference. The inner diameter of the caps is larger than the outer diameter of the bearing. The drive shaft is rotatably connected to the caps at both ends of the conveying pipe through the bearing. The caps can seal both ends of the conveying pipe.

[0013] As a preferred embodiment of this utility model, the outer edge of the auger contacts the inner wall of the conveying pipe, the rotating shaft of the conveying motor is fixedly connected to the transmission shaft by means of insertion, and the conveying motor is fixedly connected to the cover by a connecting frame; the auger can drive the cement to move.

[0014] As a preferred embodiment of this utility model, the sample bottle has a threaded structure on the inner side of its top end, and the sample bottle is movably connected to the delivery tube through the threaded structure; the sample bottle can store a certain amount of sample.

[0015] Compared with the prior art, the present invention provides a cement sampling device, which has the following beneficial effects:

[0016] 1. This utility model uses a fixed tube, which is fixedly connected to the receiving tube via a fixed frame. The plug is movably connected to the fixed tube via a piston. The plug is made of rubber, has a conical structure, and the bottom diameter of the plug is larger than the outer diameter of the fixed tube. The plug is located directly below the opening structure of the connecting tube. The piston drives the plug to move upward, so that the plug passes through the opening structure at the bottom of the connecting tube, thereby destroying the cement board structure blocking the opening structure of the connecting tube and preventing cement from blocking the sampling hole.

[0017] 2. This utility model, through the setting of the conveying pipe, has caps symmetrically installed at both ends of the conveying pipe with the center of the conveying pipe as the reference. The inner diameter of the caps is larger than the outer diameter of the bearing. The drive shaft is rotatably connected to the caps at both ends of the conveying pipe through the bearing. The outer edge of the auger contacts the inner wall of the conveying pipe. The shaft of the conveying motor is fixedly connected to the drive shaft through an insertion method. The sample bottle is movably connected to the conveying pipe through a threaded structure. The cement sample will be conveyed into the sample bottle by the auger. When it is necessary to remove the sample bottle, the piston will seal the opening structure below the connecting pipe with the plug to prevent the airflow inside the connecting pipe from entering the receiving pipe, thereby preventing the gas from moving the cement to the outside when the sample is removed. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the baffle installation structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the plug installation structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the cross-sectional structure of the conveying pipe of this utility model;

[0022] The components are: 1. Connecting pipe; 11. Baffle; 12. Receiving pipe; 13. Fixing frame; 14. Fixing pipe; 15. Piston; 16. Plug; 2. Conveying pipe; 21. Cap; 22. Bearing; 23. End cap; 24. Drive shaft; 25. Screwdriver; 26. Conveying motor; 27. Connecting frame; 28. Sample bottle. Detailed Implementation

[0023] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0024] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. In addition, the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0026] Please see Figure 1 - Figure 4 In this embodiment, a cement sampling device includes: a connecting pipe 1, a baffle 11 fixedly installed inside the connecting pipe 1, a receiving pipe 12 fixedly installed below the connecting pipe 1, a fixing frame 13 fixedly installed inside the receiving pipe 12, a fixing pipe 14 fixedly installed at the center of the fixing frame 13, a piston 15 inserted inside the fixing pipe 14, and a plug 16 fixedly installed at the top of the piston 15.

[0027] Flange structures are provided at both ends of the connecting pipe 1. An opening structure is provided below the surface of the connecting pipe 1. A baffle 11 is fixedly installed on the rear side of the opening below the connecting pipe 1. A recessed structure that fits into the outside of the connecting pipe 1 is provided at the top of the receiving pipe 12. The receiving pipe 12 communicates with the cavity of the connecting pipe 1 through the opening structure below the surface of the connecting pipe 1. The fixed pipe 14 is fixedly connected to the receiving pipe 12 through the fixing bracket 13. The plug 16 is movably connected to the fixed pipe 14 through the piston 15. The plug 16 is made of rubber, has a conical structure, and the bottom diameter of the plug 16 is larger than the outer diameter of the fixed pipe 14. The plug 16 is located directly below the opening structure of the connecting pipe 1.

[0028] Specifically, the connecting pipe 1 can communicate with the cement conveying pipeline, thereby facilitating cement sampling. The baffle 11 facilitates cement entry into the receiving pipe 12, and the receiving pipe 12 facilitates cement entry into the conveying pipe 2. The fixing bracket 13 can restrict the position of the fixing pipe 14, the fixing pipe 14 can restrict the position of the piston 15, the piston 15 can facilitate the movement of the plug 16, and the plug 16 can seal the opening structure below the connecting pipe 1.

[0029] A conveying pipe 2 is fixedly installed below the receiving pipe 12. A cap 21 is fixedly installed at both ends of the conveying pipe 2. A bearing 22 is fitted into the center of the cap 21. An end cap 23 is fixedly installed at the right end of the bearing 22. A drive shaft 24 is inserted through the center of the bearing 22. An auger 25 is fixedly installed on the outside of the drive shaft 24. A conveying motor 26 is fixedly installed on the left end of the drive shaft 24. A connecting frame 27 is inserted through the outside of the conveying motor 26. A sample bottle 28 is inserted through the bottom end of the conveying pipe 2.

[0030] The caps 21 are symmetrically installed at the front and rear ends of the conveying pipe 2 with the center of the conveying pipe 2 as the reference. The inner diameter of the caps 21 is larger than the outer diameter of the bearing 22. The drive shaft 24 is rotatably connected to the caps 21 at both ends of the conveying pipe 2 through the bearing 22. The outer edge of the auger 25 is in contact with the inner wall of the conveying pipe 2. The shaft of the conveying motor 26 is fixedly connected to the drive shaft 24 by inserting it. The conveying motor 26 is fixedly connected to the caps 21 through the connecting frame 27. The top inner side of the sample bottle 28 is provided with a threaded structure. The sample bottle 28 is movably connected to the conveying pipe 2 through the threaded structure.

[0031] Specifically, the conveying pipe 2 facilitates the delivery of cement to the sample bottle 28, the cap 21 seals both ends of the conveying pipe 2, the bearing 22 facilitates the rotation of the drive shaft 24, the end cap 23 seals the right end of the cap 21, the drive shaft 24 facilitates the rotation of the auger 25, the auger 25 moves the cement, the conveying motor 26 facilitates the rotation of the drive shaft 24, the connecting frame 27 restricts the position of the conveying motor 26, and the sample bottle 28 can store a certain amount of sample.

[0032] In use, the top of the receiving tube 12 is provided with a recessed structure that fits into the outside of the connecting tube 1. The receiving tube 12 communicates with the cavity of the connecting tube 1 through an opening structure below the surface of the connecting tube 1. An opening structure is provided below the surface of the connecting tube 1. A baffle 11 is fixedly installed behind the opening below the connecting tube 1. The cement inside the connecting tube 1 impacts the baffle 11 under the influence of airflow and is intercepted by the baffle 11. Then, under the influence of gravity, it enters the receiving tube 12 through the opening structure below the connecting tube 1. Afterward, it is moved into the sample bottle 28 by the auger 25. The fixing tube 14 is fixedly connected to the receiving tube 12 through the fixing bracket 13. The plug 16 is movably connected to the fixing tube 14 through the piston 15. The plug 16 is made of rubber, has a conical structure, and the bottom diameter of the plug 16 is larger than the outer diameter of the fixing tube 14. The plug 16 is located directly below the opening structure of the connecting tube 1. The piston 15 drives the plug 16 to move upward, thereby causing the plug 16 to move upward. 6. The cement board structure blocking the sampling hole is destroyed by passing through the opening structure at the bottom of the connecting pipe 1, thereby preventing cement from blocking the sampling hole. The cap 21 is symmetrically installed at the front and rear ends of the conveying pipe 2 with the center of the conveying pipe 2 as the reference. The inner diameter of the cap 21 is larger than the outer diameter of the bearing 22. The drive shaft 24 is rotatably connected to the caps 21 at both ends of the conveying pipe 2 through the bearing 22. The outer edge of the auger 25 contacts the inner wall of the conveying pipe 2. The shaft of the conveying motor 26 is fixedly connected to the drive shaft 24 by inserting. The sample bottle 28 is movably connected to the conveying pipe 2 through the threaded structure. The cement sample will be conveyed into the sample bottle 28 through the auger 25. When it is necessary to remove the sample bottle 28, the piston 15 closes the opening structure below the connecting pipe 1 by the plug 16 to prevent the airflow inside the connecting pipe 1 from entering the receiving pipe 12, thereby preventing the gas from moving the cement to the outside when the sample is removed.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A cement sampling device, characterized in that, include: A connecting pipe (1) is provided, with a baffle (11) fixedly installed inside. A receiving pipe (12) is fixedly installed below the connecting pipe (1). A fixing frame (13) is fixedly installed inside the receiving pipe (12). A fixing pipe (14) is fixedly installed at the center of the fixing frame (13). A piston (15) is inserted inside the fixing pipe (14). A plug (16) is fixedly installed at the top of the piston (15). A conveying pipe (2) is fixedly installed below the receiving pipe (12). The conveying pipe (2) has... Both ends are fixedly installed with caps (21), and a bearing (22) is fitted into the center of the caps (21). An end cap (23) is fixedly installed on the right end of the bearing (22). A drive shaft (24) is inserted through the center of the bearing (22). An auger (25) is fixedly installed on the outside of the drive shaft (24). A conveyor motor (26) is fixedly installed on the left end of the drive shaft (24). A connecting frame (27) is inserted through the outside of the conveyor motor (26). A sample bottle (28) is inserted through the bottom end of the conveying pipe (2).

2. The cement sampling device according to claim 1, characterized in that: The connecting pipe (1) is provided with flange structures at both ends, and an opening structure is provided below the surface of the connecting pipe (1). The baffle (11) is fixedly installed on the rear side of the opening below the connecting pipe (1).

3. A cement sampling device according to claim 1, characterized in that: The top end of the receiving pipe (12) is provided with a recessed structure that fits into the outside of the connecting pipe (1). The receiving pipe (12) communicates with the cavity of the connecting pipe (1) through an opening structure below the surface of the connecting pipe (1).

4. A cement sampling device according to claim 1, characterized in that: The fixed tube (14) is fixedly connected to the receiving tube (12) through the fixed bracket (13), and the plug (16) is movably connected to the fixed tube (14) through the piston (15). The plug (16) is made of rubber, has a conical structure, and the bottom diameter of the plug (16) is larger than the outer diameter of the fixed tube (14). The plug (16) is located directly below the opening structure of the connecting tube (1).

5. A cement sampling device according to claim 1, characterized in that: The cap (21) is symmetrically installed at the front and rear ends of the conveying pipe (2) with the center of the conveying pipe (2) as the reference. The inner diameter of the cap (21) is larger than the outer diameter of the bearing (22). The drive shaft (24) is rotatably connected to the cap (21) at both ends of the conveying pipe (2) through the bearing (22).

6. A cement sampling device according to claim 1, characterized in that: The outer edge of the auger (25) contacts the inner wall of the conveying pipe (2), the shaft of the conveying motor (26) is fixedly connected to the transmission shaft (24) by means of insertion, and the conveying motor (26) is fixedly connected to the cover (21) by means of the connecting frame (27).

7. A cement sampling device according to claim 1, characterized in that: The sample bottle (28) has a threaded structure on the inner side of its top end, and the sample bottle (28) is connected to the delivery pipe (2) through the threaded structure.

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