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CN-224216345-U - Sampling device for thickener

CN224216345UCN 224216345 UCN224216345 UCN 224216345UCN-224216345-U

Abstract

The utility model discloses a sampling device for a thickener, and belongs to the technical field of thickener sampling. The device comprises a sampling cylinder fixedly arranged on the cavity wall of a thickener, a sampling pipe orifice is fixedly arranged at the lower end of the sampling cylinder, a sliding rod is slidably matched in the sampling cylinder, a pushing assembly for pushing the sliding rod to move is arranged on the sampling cylinder, a cleaning mechanism for conveying fluid to the inside of the sampling cylinder is fixedly arranged on the sampling cylinder, a diversion trench which is communicated with the sampling pipe orifice and the output end of the cleaning mechanism is formed in the side face of the sliding rod, and the middle of the diversion trench is deviated to the cavity wall of the thickener. When the diversion trench needs to be cleaned, the three-way reversing valve can be opened, so that the water pipe is connected to clean the inside of the sampling cylinder, the state of the three-way reversing valve is changed, the air pipe is connected to dry the diversion trench, the sample liquid residue after sampling is reduced, and the detection accuracy is improved.

Inventors

  • LIU XIAOZHI
  • HONG JUNMIN
  • YAN SAISAI
  • Hao Xingzong
  • HU LONGFEI

Assignees

  • 安徽傲海矿山机器有限公司

Dates

Publication Date
20260508
Application Date
20250425

Claims (10)

  1. 1. The utility model provides a sampling device for thickener, includes fixed sampling tube (2) that set up on thickener chamber wall (1), sampling tube (2) lower extreme is fixed to be provided with sampling tube mouth (201), its characterized in that: The inside of the sampling tube (2) is in sliding fit with a sliding rod (5), a pushing assembly for pushing the sliding rod (5) to move is arranged on the sampling tube (2), and a cleaning mechanism (6) for conveying fluid into the sampling tube (2) is fixedly arranged on the sampling tube (2); The side of the sliding rod (5) is provided with a guide groove (503) which is communicated with the sampling pipe orifice (201) and the output end of the cleaning mechanism (6), the middle of the guide groove (503) is deviated to the wall (1) of the thickener, and when the end part of the sliding rod (5) moves into the inner side of the wall (1) of the thickener, sample liquid can enter the guide groove (503) and then flow out of the sampling pipe orifice (201).
  2. 2. A sampling device for a thickener according to claim 1, wherein the cleaning mechanism (6) comprises a three-way reversing valve (601) fixedly arranged on the sampling cylinder (2), a group of output ports and two groups of input ports are arranged on the three-way reversing valve (601), the output ports are communicated with the diversion trench (503), one group of the input ports is connected with a water pipe (602), the other end of the water pipe (602) is connected with a water supply device, the other group of the input ports is connected with an air pipe (603), and the other end of the air pipe (603) is connected with an air supply device.
  3. 3. A sampling device for a thickener according to claim 2, wherein the flow guide groove (503) extends along the side surface of the slide bar (5) in a herringbone shape, the upper end of the flow guide groove (503) is communicated with the output port of the three-way reversing valve (601), the lower end is communicated with the sampling pipe orifice (201), and the middle is axially offset to the thickener cavity wall (1) along the slide bar (5).
  4. 4. A sampling device for a thickener according to claim 3, wherein the sliding rod (5) is provided with a thread groove (501) at one end far away from the wall (1) of the thickener, the pushing component comprises a threaded rod (3) in threaded connection with the thread groove (501), and a hand wheel (4) rotatably arranged at one end of the sampling cylinder (2) close to the wall (1) of the thickener, one end of the threaded rod (3) far away from the thread groove (501) is fixedly connected with the hand wheel (4) coaxially, and a guiding component is arranged between the sliding rod (5) and the sampling cylinder (2).
  5. 5. The sampling device for a thickener according to claim 4, wherein the guide assembly comprises a guide groove (504) which is arranged on the slide bar (5) and extends along the axial direction of the slide bar (5), the guide groove (504) is not communicated with the guide groove (503), and a guide block (203) which is in sliding fit with the guide groove (504) is fixedly arranged on the inner side of the sampling tube (2).
  6. 6. A sampling device for a thickener according to claim 3 or 4, wherein the sampling tube orifice (201) is provided with a valve (202) for controlling the flow state of the sampling tube orifice (201).
  7. 7. A sampling device for a thickener according to claim 6, wherein said valve (202) is a flow regulating valve capable of manually regulating flow.
  8. 8. A sampling device for a thickener according to claim 3 or 4, wherein the inner side of the chamber wall (1) of the thickener is provided with a sealing sliding port (101), the axis of the sealing sliding port (101) coincides with the axis of the sampling tube (2), and a sealing plate (502) which is in sliding fit with the side wall of the sealing sliding port (101) is fixedly arranged at one end of the sliding rod (5) close to the chamber wall (1).
  9. 9. A sampling device for a thickener according to claim 1, wherein a sealing ring matched with the shape of the sliding rod (5) is arranged on the inner side of the sampling cylinder (2), and the sealing ring is positioned between one end of the sliding rod (5) far away from the thickener cavity wall (1) and the diversion trench (503).
  10. 10. The sampling device for a thickener according to claim 8, wherein a sealing gasket is fixedly arranged on the inner side of the sealing slide opening (101).

Description

Sampling device for thickener Technical Field The utility model relates to the technical field of concentrator sampling, in particular to a sampling device for a concentrator. Background The thickener is a continuously working pulp concentration and water quality clarification device, and is widely applied to industries such as mineral dressing, metallurgy, chemical industry, coal, environmental protection and the like. The gravity sedimentation principle is adopted to precipitate solid particles in the ore pulp, so that solid-liquid separation is realized, the concentration of the ore pulp is improved or the water quality is purified, and the gravity sedimentation type ore pulp has important significance for resource recovery and environmental protection. The concentrator sampling process is usually carried out later in the concentration operation, and at this time, sampling is required to determine the specific gravity of the solution concentration. Before sampling, the upper valve of the sampling port is opened for 10 seconds, then the lower valve is opened, and a small amount of concentrated solution flows out for detection. If the concentration does not reach the standard, the concentration is continued for 25-30 minutes, sampling and inspection are carried out again until the concentration meets the requirement, and the subsequent discharging operation can be carried out. The prior art scheme has the defects that after one sampling is finished, part of samples can be attached to the inner wall of the sampling port, and residual substances are difficult to thoroughly remove due to the fact that the space of the sampling port is relatively narrow and the structure is complex. When sampling is carried out next time, the residual substances are mixed with a newly collected sample, so that components of the new sample are changed, the accuracy of secondary sampling is further affected, the detection result can not truly reflect the current sample condition, and errors are caused for subsequent analysis and judgment. Disclosure of utility model The utility model provides a sampling device for a thickener, which can solve the problem that part of sampled samples in the thickener in the prior art are attached to the inner wall of a sampling port, thereby affecting the accuracy of secondary sampling. A sampling device for a thickener comprises a sampling tube fixedly arranged on the wall of a thickener cavity, a sampling tube orifice is fixedly arranged at the lower end of the sampling tube, a sliding rod is slidably matched inside the sampling tube, a pushing assembly for pushing the sliding rod to move is arranged on the sampling tube, a cleaning mechanism for conveying fluid to the inside of the sampling tube is fixedly arranged on the sampling tube, a guide groove which is communicated with the sampling tube orifice and the output end of the cleaning mechanism is formed in the side face of the sliding rod, the middle of the guide groove deflects towards the wall of the thickener cavity, and when the end part of the sliding rod moves into the inner side of the wall of the thickener cavity, sample liquid enters the guide groove and flows out of the opening of the sampling tube. The cleaning mechanism comprises a three-way reversing valve fixedly arranged on the sampling cylinder, wherein a group of output ports and two groups of input ports are arranged on the three-way reversing valve, the output ports are communicated with the diversion trench, one group of input ports are connected with a water pipe, the other end of the water pipe is connected with a water supply device, the other group of input ports are connected with an air pipe, and the other end of the air pipe is connected with an air supply device. As a further scheme of the utility model, the diversion trench extends along the side surface of the slide bar in a herringbone manner, the upper end of the diversion trench is communicated with the output port of the three-way reversing valve, the lower end of the diversion trench is communicated with the sampling pipe orifice, and the middle of the diversion trench is offset towards the wall of the thickener cavity along the axial direction of the slide bar. As a further scheme of the utility model, one end of the sliding rod far away from the cavity wall of the thickener is provided with a thread groove, the pushing component comprises a threaded rod in threaded connection with the thread groove, and a hand wheel rotatably arranged at one end of the sampling cylinder near the cavity wall of the thickener, one end of the threaded rod far away from the thread groove is fixedly connected with the hand wheel coaxially, and a guide component is arranged between the sliding rod and the sampling cylinder. As a further scheme of the utility model, the guide assembly comprises a guide groove which is arranged on the slide bar and extends along the axial direction of the slide bar, the guide groove is not comm