A flow slurry detection quick sampler

Abstract

This invention relates to the field of slurry sampling, and more particularly to a rapid sampler for detecting flowing slurry. The rapid sampler for detecting flowing slurry of this invention samples slurry flowing through the edge region via a side sampling hole on a ring-shaped tube, and samples slurry flowing through the middle region via a central sampling tube on the ring-shaped tube. This achieves uniform sampling of slurry from different regions within the sampling tube. After sampling is completed, an annular baffle and a central baffle respectively seal and block the annular tube and the central sampling tube. At this point, the annular tube and the central sampling tube occupy a small area within the sampling tube, and their obstruction of the slurry flowing within the sampling tube is also minimal. This rapid sampler for detecting flowing slurry of this invention solves the technical problem that requiring temporary shutdown of the next processing equipment for full-section sampling of slurry in a pipeline would affect the processing efficiency of the entire slurry production process.

Description

Technical Field

[0001] This invention relates to the field of slurry sampling, and more particularly to a rapid sampler for detecting flowing slurry. Background Technology

[0002] In the slurry conveying system of a mineral processing plant, slurry sampling and testing are crucial for ensuring production processes, product quality, and safe operation. Slurry sampling must provide representative samples to reflect the concentration, particle size distribution, and chemical composition of solid particles throughout the pipeline. Otherwise, misjudgments in feed ratios and flotation reagent dosages will occur, directly affecting concentrate recovery and grade. The flow rate, solid concentration, and particle size of the slurry in the pipeline fluctuate over time, significantly increasing sampling errors and leading to statistical bias. Therefore, existing sampling equipment directly samples the slurry across the entire pipeline, requiring the entire slurry flowing through the pipeline to be discharged into a sampling container via a sampling valve. This method results in the slurry not being able to continuously flow to the next processing unit in a short period, necessitating the temporary shutdown of the next processing unit and impacting the overall efficiency of the slurry production process. Summary of the Invention

[0003] To overcome the drawback that requiring the temporary shutdown of the next processing equipment for full-section sampling of slurry in pipelines would affect the processing efficiency of the entire slurry production process, this invention provides a rapid sampler for detecting flowing slurry.

[0004] The technical solution of this invention: A rapid sampler for detecting flowing slurry, comprising a sampling tube, an annular tube, a central liquid collection tube, a sampling valve, an annular baffle, a gear ring, a motor, a gear, a support frame, and a central baffle; the annular tube is fixedly connected inside the sampling tube; the sampling tube is equipped with a sampling valve that connects to the annular tube; several side liquid collection holes are provided on the left side of the annular tube; the central liquid collection tube is connected to the bottom of the annular tube, and the central liquid collection tube is designed as an L-shaped structure that bends to the upper left, and the upper end of the central liquid collection tube is not aligned with the axis of the annular tube; an annular baffle that blocks all the side liquid collection holes is rotatably connected inside the sampling tube; the annular baffle has a liquid inlet channel structure corresponding to the number of side liquid collection holes; a gear ring is fixedly connected to the annular baffle; a motor is installed on the sampling tube; a gear is fixedly connected to the output shaft of the motor; the gear meshes with the gear ring; a support frame is fixedly connected to the annular baffle; a central baffle that blocks the liquid inlet port of the central liquid collection tube is fixedly connected to the support frame.

[0005] Furthermore, an inner tube is fixed to the left side of the sampling tube; the inner tube is equipped with several flow guiding threads.

[0006] Furthermore, a support block is fixed to the central liquid extraction tube to support the central baffle after it is opened.

[0007] Furthermore, a support plate for supporting the central liquid extraction tube is fixed to the annular tube; the left side of the support plate is provided with a diversion structure with double beveled tips on both the front and rear sides.

[0008] Furthermore, the left side of the support plate has several auxiliary sampling channels that connect to the double-sloping diversion plate; the support frame closes and blocks the auxiliary sampling channels.

[0009] Furthermore, each liquid inlet channel of the annular baffle is fixed with several side cutters.

[0010] Furthermore, an installation component is installed on the central liquid collection tube; a fixing rod is fixed to the installation component; a flow guide ring is fixed to the fixing rod; and several central cutters are fixed inside the flow guide ring.

[0011] Furthermore, the mounting component uses an electrically rotating part, and the rotating part of the mounting component is fixedly connected to a fixing rod.

[0012] Furthermore, the outer surface of the guide ring is designed as a right-expanding annular conical guide structure.

[0013] Furthermore, a miniature flow velocity sensor is installed inside the flow guide ring.

[0014] The beneficial effects of this invention are as follows: This invention provides a rapid sampler for detecting flowing slurry. It samples the slurry flowing along the edge of the pipe through a side sampling hole on the annular tube, and samples the slurry flowing through the middle region through a central sampling tube on the annular tube. This achieves uniform sampling of slurry from different regions within the sampling tube. After sampling, the annular baffle and the central baffle respectively seal and block the annular tube and the central sampling tube. At this point, the annular tube and the central sampling tube occupy a small area within the sampling tube, minimizing their obstruction of the flowing slurry. If the debris in the slurry is uniformly small in size, the auxiliary sampling channel on the support plate can increase the number of sampling points and the coverage area. If the debris in the slurry contains trace amounts of large debris, the side and central cutters can prevent blockage of the side sampling holes and the central sampling tube. This invention solves the technical problem that requiring temporary shutdown of the next processing equipment for full-section sampling of slurry in a pipeline would affect the processing efficiency of the entire slurry production process. Attached Figure Description

[0015] Figure 1 A three-dimensional structural diagram illustrating the present invention;

[0016] Figure 2 This is a cross-sectional view illustrating the three-dimensional structure of the sampling tube and inner tube of the present invention.

[0017] Figure 3 A three-dimensional structural diagram of the annular tube of the present invention is provided.

[0018] Figure 4 A three-dimensional structural diagram illustrating the annular baffle of the present invention;

[0019] Figure 5 An exploded view illustrating the three-dimensional structure of the annular tube and annular baffle of the present invention;

[0020] Figure 6 This is a partial three-dimensional structural diagram illustrating the annular baffle of the present invention;

[0021] Figure 7 A three-dimensional structural diagram illustrating the fixing rod of the present invention;

[0022] Figure 8 A three-dimensional structural diagram illustrating the flow guide ring of the present invention is provided.

[0023] Reference numerals: 1-Sampling tube, 11-Inner tube, 1101-Guide thread, 2-Annular tube, 201-Side liquid sampling hole, 21-Central liquid sampling tube, 211-Support block, 22-Support plate, 2201-Auxiliary sampling channel, 23-Sampling valve, 3-Annular baffle, 301-Liquid inlet channel, 31-Gear ring, 32-Motor, 33-Gear, 34-Support frame, 35-Central baffle, 36-Side cutter, 41-Mounting component, 42-Fixing rod, 43-Guide ring, 44-Central cutter, 45-Miniature flow rate sensor. Detailed Implementation

[0024] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0025] Example 1: A rapid sampler for detecting flowing slurry, such as... Figures 1-6 As shown, the device includes a sampling tube 1, an annular tube 2, a central liquid collection tube 21, a sampling valve 23, an annular baffle 3, a gear ring 31, a motor 32, a gear 33, a support frame 34, and a central baffle 35. The annular tube 2 is fixedly connected inside the sampling tube 1. The sampling valve 23 is installed in the sampling tube 1 and connects to the annular tube 2. Several side liquid collection holes 201 are provided on the left side of the annular tube 2. The central liquid collection tube 21 is connected to the bottom of the annular tube 2. The central liquid collection tube 21 is an L-shaped structure that bends to the upper left, and the upper end of the central liquid collection tube 21 is not aligned with the axis of the annular tube 2. A device tightly attached to the annular tube 2 is rotatably connected inside the sampling tube 1. The left-side annular baffle 3 initially blocks all side liquid collection holes 201; the annular baffle 3 has a liquid inlet channel 301 structure corresponding to the number of side liquid collection holes 201, and the liquid inlet channel 301 is not initially aligned with the corresponding side liquid collection hole 201; a toothed ring 31 is fixedly connected to the annular baffle 3; a motor 32 is installed on the sampling tube 1; a gear 33 is fixedly connected to the output shaft of the motor 32; the gear 33 meshes with the toothed ring 31; a support frame 34 is fixedly connected to the annular baffle 3; a middle baffle 35 is fixedly connected to the support frame 34; the middle baffle 35 initially blocks the liquid inlet port of the middle liquid collection tube 21.

[0026] like Figure 2 As shown, an inner tube 11 is fixedly connected to the left side of the sampling tube 1; the inner tube 11 is provided with several flow guiding threads 1101. During the process of the slurry flowing to the right along the flow guiding threads 1101 of the inner tube 11, the slurry will flow to the annular tube 2 and the middle liquid collection tube 21 in a spiral flow state. At this time, the slurry will stir the internal debris evenly during the spiral flow, avoid the debris from settling at the bottom of the slurry, and improve the uniformity of the internal debris distribution of the slurry during sampling.

[0027] like Figure 4 and Figure 5 As shown, a support block 211 is fixedly connected to the central liquid collection pipe 21; a support plate 22 is fixedly connected to the annular pipe 2, and the support plate 22 is supported below the central liquid collection pipe 21; the left side of the support plate 22 is provided with a diversion structure with double inclined tips on the front and rear sides. When the slurry flows to the right through the diversion structure with double inclined tips on the front and rear sides of the support plate 22, the slurry completes the diversion action to the front and rear sides with a small flow resistance effect, avoiding the slurry from being subjected to a large flow resistance due to directly hitting the central liquid collection pipe 21 to the right.

[0028] After connecting the two ends of the sampling tube 1 to the slurry conveying pipeline, the slurry flows continuously between the slurry conveying pipeline and the sampling tube 1. When the slurry flows through the guide thread 1101, it stirs the debris evenly. The steps for using the quick sampler for detecting flowing slurry of the present invention to sample the slurry are as follows.

[0029] Taking a ball valve as an example, the operator first connects a sampling container to the outlet of the sampling valve 23, then opens the sampling valve 23. The operator then controls the motor 32 via the PLC controller to rotate the gear 33. The gear 33 meshes with the gear ring 31, causing the annular baffle 3 to rotate, aligning the liquid inlet channel 301 of the annular baffle 3 with the corresponding side liquid inlet 201 on the annular tube 2. Simultaneously, the annular baffle 3 causes the middle baffle 35 on the support frame 34 to rotate away from the liquid inlet port of the middle liquid inlet tube 21, and the middle liquid inlet tube 21 is then supported by the middle baffle 34. The support block 211 provides support for the rotating and departing central baffle 35, preventing vibration caused by continuous impact of the slurry fluid on the central baffle 35. At this time, part of the slurry flowing through the edge area of ​​the sampling tube 1 will flow into the annular tube 2 through each inlet channel 301 and the corresponding side sampling hole 201. The slurry flowing through the central area of ​​the sampling tube 1 will flow into the annular tube 2 through the inlet port of the central sampling tube 21. Finally, the sampled slurry flows into the external sampling container along the annular tube 2 and the sampling valve 23, completing the slurry sampling work.

[0030] Example 2, as Figures 1-6As shown, based on the above embodiment 1, the support plate 22 of this embodiment has several auxiliary sampling channels 2201 structures connected to the double inclined diversion plate on the left side; the support frame 34 initially closes the support plate 22 to close and block the auxiliary sampling channels 2201.

[0031] When a slag crushing and treatment device is installed on the external slurry conveying pipeline, the slurry will flow through the slag crushing and treatment device before entering the external slurry conveying pipeline to crush the slag into uniform small volume sizes. Therefore, small volume slag flows uniformly in the slurry in the sampling tube 1. After the annular baffle 3 drives the support frame 34 and the middle baffle 35 to rotate, the auxiliary sampling channel 2201 on the support plate 22 will also participate in the slurry sampling work. The auxiliary sampling channel 2201 on the support plate 22 covers various areas from the middle to the side edge of the sampling tube 1 along the radial direction. Therefore, it can not only speed up the sampling speed, but also increase the number of sampling points and the coverage area, and improve the slurry sampling efficiency.

[0032] Example 3, as Figures 1-8 As shown, based on the above embodiment 1, in this embodiment, each liquid inlet channel 301 of the annular baffle 3 is fixedly connected with a plurality of side cutters 36, and the left end of the side cutters 36 protrudes to the left from the liquid inlet channel 301; a mounting component 41 is installed on the central liquid inlet tube 21, and the mounting component 41 is an electric rotating component; a fixing rod 42 is fixedly connected to the rotating component of the mounting component 41, and the mounting component 41 and the fixing rod 42 are located on the rear side of the central liquid inlet tube 21. The annular baffle 3 drives the central baffle 35 on the support frame 34 to move to the left viewing angle. Rotating counterclockwise avoids interference between the support frame 34 and the fixed rod 42; a guide ring 43 is fixedly attached to the fixed rod 42; several central cutters 44 are fixedly attached at equal intervals around the inside of the guide ring 43, and the left end of the central cutter 44 protrudes to the left from the guide ring 43; the outer surface of the guide ring 43 is designed as a right-expanding annular conical guide structure; a miniature flow rate sensor 45 is installed inside the guide ring 43; the diameter of the guide ring 43 is larger than the aperture of the central liquid collection tube 21, so that the slurry entering the central liquid collection tube 21 needs to flow through the guide ring 43.

[0033] When a screening device is installed on the external slurry delivery pipeline, the slurry will flow through the screening device before entering the pipeline to intercept and filter large-volume debris. If the screening device does not completely intercept the large-volume debris, resulting in a small amount of debris remaining in the slurry, to prevent the side intake hole 201 and the middle intake pipe 21 of the annular pipe 2 from being blocked by the debris, a side cutter 36 and a middle cutter 44 are respectively installed on the left side of the side intake hole 201 and the middle intake pipe 21. When the large-volume debris in the slurry passes through the side cutter 36 and the middle cutter 44, if the debris is a hard lump, it will be blocked and bounced away by the side cutter 36 and the middle cutter 44. The hard lumps that are ejected by the central cutter 44 flow to the right along the inner ring surface of the annular baffle 3 and the outer surface of the guide ring 43 with the slurry. If the large volume debris is a soft mud lump with low hardness, the soft mud lump is cut into pieces by the side cutter 36 and the central cutter 44 under the flow impact force generated by the soft mud lump itself during the flow of the slurry. This allows the soft mud lump to pass smoothly through the liquid inlet channel 301 and the guide ring 43. Even if the soft mud lump is cut into pieces and flows into the sampling slurry along the side liquid inlet 201 and the central liquid inlet pipe 21 to participate in the testing, since the content of large volume debris in the slurry is small, the soft mud lump mixed in the sampling slurry will not affect the test results. Moreover, the soft mud lump can flow smoothly through the guide ring 43 without causing blockage after being cut into pieces.

[0034] Since the central cutters 44 are distributed inside the guide ring 43, large-volume debris may get stuck between all the central cutters 44 inside the guide ring 43. At this time, because the guide ring 43 is blocked by large-volume debris, the micro flow velocity sensor 45 will detect that the flow velocity of the slurry flowing through the guide ring 43 has dropped significantly. At this time, the sampling valve 23 will be temporarily closed to suspend the slurry sampling work. The electric rotating component used by the mounting component 41 will immediately drive the fixing rod 42, the guide ring 43 and the central cutters 44 to flip to the right, so that the slurry flowing from left to right will flush out the large-volume debris stuck inside the guide ring 43 to the right, thus solving the problem of the guide ring 43 being blocked by large-volume debris.

[0035] The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Therefore, all equivalent changes made to the content described in the claims of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A rapid sampler for detecting flowing slurry, comprising a sampling tube (1); characterized in that: It also includes an annular tube (2), a central liquid collection tube (21), a sampling valve (23), an annular baffle (3), a gear ring (31), a motor (32), a gear (33), a support frame (34), and a central baffle (35); the annular tube (2) is fixedly connected inside the sampling tube (1); the sampling tube (1) is equipped with a sampling valve (23) that connects to the annular tube (2); the annular tube (2) has several side liquid collection holes (201) on its left side; the bottom of the annular tube (2) is connected to the central liquid collection tube (21), which is designed as an L-shaped structure that bends to the upper left, and the upper end of the central liquid collection tube (21) is not connected to the annular tube (2). The axes are aligned; an annular baffle (3) is rotatably connected inside the sampling tube (1) to block all side liquid collection holes (201); the annular baffle (3) has a liquid inlet channel (301) structure corresponding to the number of side liquid collection holes (201); a toothed ring (31) is fixedly connected to the annular baffle (3); a motor (32) is installed on the sampling tube (1); a gear (33) is fixedly connected to the output shaft of the motor (32); the gear (33) meshes with the toothed ring (31); a support frame (34) is fixedly connected to the annular baffle (3); a middle baffle (35) is fixedly connected to the support frame (34) to block the liquid inlet port of the middle liquid collection tube (21).

2. The rapid sampler for detecting flowing slurry according to claim 1, characterized in that: The sampling tube (1) is fixed to the left side with an inner tube (11); the inner tube (11) has several guide threads (1101).

3. The rapid sampler for detecting flowing slurry according to claim 1, characterized in that: A support block (211) is fixed to the middle liquid collection tube (21) to support the middle baffle (35) after it is opened.

4. The rapid sampler for detecting flowing slurry according to claim 1, characterized in that: A support plate (22) for supporting the middle liquid collection tube (21) is fixed on the annular tube (2); the left side of the support plate (22) is provided with a diversion structure with double inclined tips on the front and rear sides.

5. The rapid sampler for detecting flowing slurry according to claim 4, characterized in that: The left side of the support plate (22) has several auxiliary sampling channels (2201) structure that connect to the double inclined diversion plate; the support frame (34) closes and blocks the auxiliary sampling channels (2201).

6. The rapid sampler for detecting flowing slurry according to claim 1, characterized in that: Each liquid inlet channel (301) of the annular baffle (3) is fixed with several side cutters (36).

7. A rapid sampler for detecting flowing slurry according to any one of claims 1-6, characterized in that: An installation component (41) is installed on the middle liquid collection tube (21); a fixing rod (42) is fixed to the installation component (41); a guide ring (43) is fixed to the fixing rod (42); and several middle cutters (44) are fixed inside the guide ring (43).

8. The rapid sampler for detecting flowing slurry according to claim 7, characterized in that: The mounting component (41) uses an electric rotating component, and the rotating component of the mounting component (41) is fixedly connected to the fixing rod (42).

9. A rapid sampler for detecting flowing slurry according to claim 7, characterized in that: The outer surface of the guide ring (43) is designed as a right-expanding annular conical guide structure.

10. A rapid sampler for detecting flowing slurry according to claim 8, characterized in that: A miniature flow velocity sensor (45) is installed inside the flow guide ring (43).

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