Automatic sampling device for ore pulp in pipeline

Abstract

The utility model discloses an automatic sampling device for ore pulp in a pipeline, which is characterized by comprising a sampling pipe communicated with the ore pulp pipeline, the upper end of the sampling pipe is opened and closed through a pneumatic piston valve arranged on the ore pulp pipeline, and the lower end of the sampling pipe is connected with a sampling pipeline. An ore pulp pump for sucking ore pulp and a three-way valve for shunting an ore pulp sample are sequentially arranged on the sampling pipeline, the ore pulp pump is also connected with a time relay, and one port of the three-way valve is connected with a sampling barrel for containing the ore pulp sample. By using the device, the simplicity and convenience of ore pulp sampling operation are realized, and meanwhile, the uniformity and representativeness of components required by an obtained ore pulp sample are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of ore pulp sampling devices, specifically to a kind of automatic ore pulp sampling device in pipeline. BACKGROUND

[0002] In the work of ore dressing, the products of each stage of the ore dressing process are often sampled and analyzed to detect production conditions and guide actual production. In the past, manual sampling was common, and the sampling site was far from the laboratory, usually 1 hour or even every few hours. The sampling time is uncertain, and the sample is not representative, which affects the test results. There are also some safety hazards in the sampling process. This sampling method is complex, the test results are lagging, and it is difficult to meet the needs of real-time online detection.

[0003] There are attempts to sample by sampling equipment in the prior art. Chinese patent number ZL201621047875.8 discloses a utility model patent for "a kind of ore pulp sampling spoon". The advantages of the sampling spoon are that the handle has an anti-slip design, the sampling rod can be freely extended and locked, and the sampling spoon has different opening shapes. The spoon body has a curved surface design, and the ore pulp is sampled by the sampling spoon. However, due to the multiple sampling points and short sampling interval, the sampling frequency is high, resulting in a large amount of manual sampling work, which cannot guarantee the quality of the ore pulp sample.

[0004] Therefore, there is an urgent need for a time-saving and labor-saving ore pulp sampling device with high automation. UTILITY MODEL CONTENT

[0005] In view of the problems in the above background technology, the utility model discloses an automatic ore pulp sampling device in pipeline.

[0006] The utility model adopts the following technical solutions:

[0007] An automatic ore pulp sampling device in pipeline, characterized by comprising a sampling pipe in communication with an ore pulp pipeline, the upper end of the sampling pipe being opened and closed by a pneumatic piston valve installed on the ore pulp pipeline, and the lower end of the sampling pipe being connected to a sampling pipeline, the sampling pipeline being sequentially provided with an ore pulp pump for pumping ore pulp and a three-way valve for splitting the ore pulp sample, the ore pulp pump being further connected to a time relay, and one port of the three-way valve being connected to a sampling bucket for receiving the ore pulp sample.

[0008] Further, the utility model further comprises a PLC controller connected to the ore pulp pump, the time relay and the pneumatic piston valve.

[0009] Compared with the prior art, the utility model has the following advantages:

[0010] 1. The use of this device simplifies the slurry sampling process while ensuring that the slurry samples are homogeneous and representative.

[0011] 2. By controlling the slurry pump to draw samples at intervals using a time relay, slurry samples at different time points can be obtained, improving the accuracy of slurry analysis; in addition, excess slurry can be returned to the slurry pipeline, reducing resource waste.

[0012] 3. This utility model can not only perform sampling according to different sampling needs and sampling quantities, but also reduce the labor intensity and workload of on-site personnel, further realizing the unmanned and automated mineral processing process. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model.

[0014] In the diagram, 1-sampling tube, 2-first switch valve, 3-second switch valve, 4-third switch valve, 5-slurry pump, 6-time relay, 7-three-way valve, 8-sampling bucket, 9-pneumatic piston valve. Detailed Implementation

[0015] The present invention will be further explained below with reference to the accompanying drawings.

[0016] like Figure 1 As shown, an automatic slurry sampling device for pipelines includes a sampling tube 1 connected to a slurry pipeline. The upper end of the sampling tube 1 is opened and closed via a pneumatic piston valve 9 installed on the slurry pipeline. The lower end of the sampling tube 1 is connected to a sampling pipeline, on which a slurry pump 5 for drawing slurry and a three-way valve 7 for diverting slurry samples are sequentially installed. A time relay 6 is also connected to the slurry pump 5. One port of the three-way valve 7 is connected to a sampling container 8 for collecting slurry samples. The device also includes a PLC controller, which is connected to the slurry pump 5, the time relay 6, and the pneumatic piston valve 9. The use of this device simplifies slurry sampling operations while ensuring that the collected slurry samples are homogeneous and representative.

[0017] The sampling pipeline is also equipped with a first switching valve 2 and a third switching valve 4. A cleaning pipeline is connected between the first switching valve 2 and the third switching valve 4, and a second switching valve 3 is installed on the cleaning pipeline. By setting up three switching valves and coordinating different opening and closing processes, the sampling tube and sampling pipeline can be cleaned to avoid blockage.

[0018] When in use, due to the difference in flow rate and diameter between the ore pulp pipeline and the sampling pipeline, the ore pulp does not flow into the sampling pipeline by itself after the pneumatic piston valve 9 is opened, so the ore pulp pump 5 is needed to extract the ore pulp. First, the pneumatic piston valve 9 and the related valves on the sampling pipeline are opened by the PLC controller, and the interval time of the time relay 6 is set, the ore pulp pump 5 is started by the time relay 6 to take samples at intervals, and multiple batches of samples at different times can be obtained; after sampling is completed, the excess samples in the pipeline can switch the related valve ports of the three-way valve 7, and the washing water of the cleaning pipeline and the ore pulp pump are used to re-introduce them into the ore pulp pipeline.

Claims

1. An automatic in-pipe ore slurry sampling device, characterized by, The sampling pipeline comprises a sampling pipe (1) communicated with the ore pulp pipeline, the upper end of the sampling pipe (1) is opened and closed through a pneumatic piston valve (9) installed on the ore pulp pipeline, and the lower end of the sampling pipe (1) is connected with a sampling pipeline, the sampling pipeline is sequentially provided with an ore pulp pump (5) for sucking the ore pulp and a three-way valve (7) for shunting the ore pulp sample, the ore pulp pump (5) is further connected with a time relay (6), and one port of the three-way valve (7) is connected with a sampling bucket (8) for containing the ore pulp sample.

2. The automatic in-line ore pulp sampling device of claim 1, wherein, The sampling pipeline is further provided with a first switch valve (2) and a third switch valve (4), a cleaning pipeline is connected between the first switch valve (2) and the third switch valve (4), and the cleaning pipeline is provided with a second switch valve (3).

3. The automatic in-line ore pulp sampling device of claim 1, wherein, The sampling pipeline further comprises a PLC controller connected with the ore pulp pump (5), the time relay (6) and the pneumatic piston valve (9).

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