Ore pulp sampling device

Abstract

The utility model discloses an ore pulp sampling device which comprises a sampling pipe, one end of the sampling pipe is inserted into an ore pulp tank, the other end of the sampling pipe is connected with a sample barrel, and a valve group and a sampling pump are sequentially arranged between the sampling pipe and the sample barrel; the valve group comprises a three-way pipe, one end of the three-way pipe is communicated with the sampling pipe through a rubber pipe valve, one end of the three-way pipe is communicated with a sampling pump, and the other end of the three-way pipe is connected with a high-pressure water pipe through a pneumatic control water valve. The ore pulp tank is additionally arranged near the ore pulp overflow port, so that ore pulp in the conveying process is temporarily stored in the ore pulp tank, and the sampling pump is arranged to convey the ore pulp in the ore pulp tank into the sampling pipe to complete sampling; the device can solve the problem that self-flowing cannot be realized due to insufficient height difference or sampling cannot be realized due to the fact that a traditional sampler cannot be mounted due to small mounting space, sampling errors are reduced to the greatest extent, and sampling representativeness and sampling quantity are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of sampling devices, in particular to a slurry sampling device, and in particular to a dual-channel active slurry sampling device. Background Art

[0002] Sampling is an indispensable part of the mineral processing process, which refers to taking a small representative part from the total pulp flow. Good sampling representativeness is of great significance for flotation optimization control, process regulation and metal balance calculation. With the development trend of mineral processing automation and intelligence, and the increasing emphasis on sampling representativeness in mineral processing, the technology of fully automatic samplers has become increasingly mature, replacing manual sampling, reducing the labor cost of mineral processing, and avoiding uncontrollable manual sampling deviations.

[0003] The current sampling method is to install a sampler on the process pipeline, take a portion of the slurry in the process pipeline, and then let the obtained slurry sample flow from a high position to a low-level sample bucket by gravity. In addition, the size of the pipeline sampler is large, and a certain amount of space needs to be reserved at the top and bottom of the pipeline to install the sampling device.

[0004] For some special locations, such as the places where there are obstructions directly above or below the pipeline to be sampled, where gravity self-flow sampling devices cannot be installed, and a series of places where general pipeline sampling devices cannot be installed due to location restrictions, or even places where the overflow port of the main pipeline and the discharge pipeline form a 90-degree bend. For these special sites where the height difference is not enough to allow self-flow or the installation space is small, the existing sampling devices cannot be installed and actively sampled, and the existing sampling devices will interfere between two samplings and affect the sample test results. Utility Model Content

[0005] The utility model aims to provide a slurry sampling device to solve the technical problem in the prior art that the existing sampling device cannot be installed and actively sampled in special pipeline locations.

[0006] In order to solve the above technical problems, the utility model specifically provides the following technical solutions:

[0007] A slurry sampling device comprises a sampling tube, one end of which is inserted into a slurry tank, and the other end of which is connected to a sample barrel, and a valve group and a sampling pump are sequentially arranged between the sampling tube and the sample barrel;

[0008] The valve group includes a three-way pipe, one end of which is connected to the sampling pipe through a hose valve, one end is connected to the sampling pump, and the other end is connected to a high-pressure water pipe through an air-controlled water valve;

[0009] During sampling, the slurry in the slurry tank is actively pumped by the sampling pump and sequentially passes through the sampling tube, the hose valve, the three-way pipe, and the sampling pump to reach the sample barrel, thereby forming a sampling channel;

[0010] During flushing, external high-pressure water passes through the high-pressure water pipe, air-controlled water valve, and sampling pump in sequence to form a flushing channel.

[0011] As a preferred solution of the utility model, a one-way valve is provided on the high-pressure water pipe, and the one-way valve is arranged between the air-controlled water valve and the three-way pipe. The one-way valve controls the high-pressure water to flow from the high-pressure water pipe to the three-way pipe in one direction.

[0012] As a preferred solution of the utility model, an elbow is connected between the sampling tube and the hose valve to change the conveying angle of the sampling tube.

[0013] As a preferred solution of the utility model, a manual valve is provided at the end of the high-pressure water pipe away from the three-way pipe.

[0014] As a preferred solution of the utility model, the hose valve, the air-controlled water valve and the sampling pump are all controlled on and off by electromagnetic valves, and each of the electromagnetic valves is connected to the same control system.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model installs a slurry trough near the slurry overflow port so that the slurry in the transportation process is temporarily stored in the slurry trough, and a sampling pump is provided to transport the slurry in the slurry trough to the sampling tube to complete active sampling, which can solve the situation where sampling cannot be performed due to insufficient height difference and self-flow or small installation space and inability to install a traditional sampler. A dual-channel design is adopted to flush the sampling channel through a high-pressure water pipe and a three-way pipe, thereby reducing sample interference, minimizing sampling errors, and greatly improving sampling representativeness and sampling volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0018] Figure 1 The overall structural diagram provided by the utility model;

[0019] Figure 2 It is a schematic diagram of the connection structure between the sampling tube and the slurry tank in the utility model.

[0020] The numbers in the figure represent the following:

[0021] 1-sampling tube; 2-hose valve; 3-tee pipe; 4-check valve; 5-air-controlled water valve; 6-high-pressure water pipe; 7-manual valve; 8-sampling pump; 9-sample tube; 10-sample barrel; 11-elbow; 12-slurry tank; 13-slurry junction box; 14-ore inlet pipeline; 15-ore discharge pipeline. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] like Figure 1 and Figure 2 As shown, the present invention provides a slurry sampling device, which mainly completes active sampling through a slurry tank 12, a sampling pump 8 and a high-pressure water pipe 6.

[0024] As an embodiment, the existing pipeline arrangement is as shown in the attached Figure 1 As shown, a mine inlet pipe 14 is connected to one side of the slurry junction box 13, and a discharge pipe 15 is connected to the bottom of the mine inlet pipe 14, and the mine inlet pipe 14 and the discharge pipe 15 are 90 degrees, and the bottom of the discharge pipe 15 is blocked alone, and there is no redundant pipe between the mine inlet pipe 14 and the slurry junction box 13. For this special site, or similar places where a general pipeline sampling device cannot be installed due to limited location, the sampling device is installed between the mine inlet pipe 14 and the discharge pipe 15, and the slurry trough 12 is installed at the right-angle turn between the mine inlet pipe 14 and the discharge pipe 15, so that the height of the slurry liquid level in the slurry trough 12 is always greater than 4 / 5 of the height of the slurry trough 12, and a sample tube 9 is provided between the sampling pump 8 and the sampling barrel 10, one end of the sample tube 9 is connected to the output end of the sampling pump 8, and the other end is inserted into the sampling barrel 10.

[0025] The dual-channel active ore liquid sampling device comprises a sampling tube 1, one end of which is inserted into a slurry tank 12, and the other end is connected to a sample barrel 10, and a valve group and a sampling pump 8 are sequentially arranged between the sampling tube 1 and the sample barrel 10;

[0026] The valve group includes a three-way pipe 3, one end of which is connected to the sampling pipe 1 through a hose valve 2, one end of which is connected to a sampling pump 8, and the other end of which is connected to a high-pressure water pipe 6 through an air-controlled water valve 5;

[0027] During sampling, the slurry in the slurry tank 12 is actively pumped by the sampling pump 8 and sequentially passes through the sampling tube 1, the hose valve 2, the three-way pipe 3, and the sampling pump 8 to reach the sample barrel 10, thereby forming a sampling channel;

[0028] During flushing, external high-pressure water passes through the high-pressure water pipe 6, the air-controlled water valve 5, and the sampling pump 8 in sequence to form a flushing channel.

[0029] Since the current slurry sampling device has high requirements for installation space, it is impossible to install traditional slurry sampling devices in some pipelines with insufficient space. Therefore, it is necessary to develop a sampling device that can sample in a limited space.

[0030] This embodiment can solve the problem that the original main pipeline needs to be dismantled and unblocked due to blockage by installing a slurry tank 12 near the slurry overflow port, so that the slurry in the transportation process is temporarily stored in the slurry tank 12. At the same time, a sampling pump 8 is provided to transport the slurry in the slurry tank 12 to the sampling tube 1 to complete active sampling. It can solve the situation where sampling cannot be performed due to insufficient height difference and self-flow or small installation space and inability to install a traditional sampler. A dual-channel design is adopted to flush the sampling channel through a high-pressure water pipe 6 and a three-way pipe 3, thereby reducing sample interference, minimizing sampling errors, and greatly improving sampling representativeness and sampling volume.

[0031] As a preferred embodiment of this embodiment, a one-way valve 4 is provided on the high-pressure water pipe 6, and the one-way valve 4 is arranged between the air-controlled water valve 5 and the three-way pipe 3. The one-way valve 4 controls the high-pressure water to flow from the high-pressure water pipe 6 to the three-way pipe 3 in one direction. The one-way valve 4 allows the high-pressure flushing water to flow from the high-pressure water pipe 6 to the three-way pipe 3 in one direction, while preventing the slurry from flowing back.

[0032] Specifically, an elbow 11 is connected between the sampling tube 1 and the hose valve 2 to change the conveying angle of the sampling tube 1. The elbow 11 is provided to change the conveying direction of the sampling tube 1.

[0033] A manual valve 7 is provided at the end of the high-pressure water pipe 6 away from the three-way pipe 3. A manual valve 7 is provided at the end of the high-pressure water pipe 6 away from the three-way pipe 3 to control the on and off of the high-pressure water inside the high-pressure water pipe 6 to further improve safety.

[0034] The hose valve 2, the air-controlled water valve 5 and the sampling pump 8 are all controlled by electromagnetic valves, and each electromagnetic valve is connected to the same control system. The control system automatically controls the opening and closing of the hose valve 2, the air-controlled water valve 5 and the sampling pump 8, and can automatically complete sampling and flushing, thereby realizing automatic sampling.

[0035] In normal working state, the slurry in the slurry junction box 13 is transported to the slurry tank 12 through the ore inlet pipe 14, and then transported out through the ore discharge pipe 15. The slurry in the transportation process is temporarily stored in the slurry tank 12, and the slurry in the slurry tank 12 flows to the ore discharge pipe 15 under the action of gravity.

[0036] At this time, the manual valve 7 is in an open state, and the hose valve 2, the air-controlled water valve 5 and the sampling pump 8 are all in a closed state;

[0037] When receiving the sampling instruction, the hose valve 2 automatically opens, the sampling pump 8 starts working, and the sampling tube 1 draws slurry from the inside of the slurry tank 12. The slurry passes through the sampling tube 1, the elbow 11, the hose valve 2, the tee pipe 3, the sampling pump 8 and the sample tube 9, and finally reaches the sampling barrel 10;

[0038] When the sampling time is reached, the hose valve 2 is automatically closed, the air-controlled water valve 5 is automatically opened, and the flushing water passes through the manual valve 7, the high-pressure water pipe 6, the air-controlled water valve 5, the one-way valve 4, the three-way pipe 3, the sampling pump 8 and the sample tube 9 to complete the cleaning of the sample pipeline. When the flushing time is reached, the air-controlled water valve 5 is closed, waiting for the next round of sampling to start.

[0039] The above embodiments are only exemplary embodiments of the present application and are not intended to limit the present application. The protection scope of the present application is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present application within the essence and protection scope of the present application, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present application.

Claims

1. A slurry sampling device, characterized in that: It comprises a sampling tube (1), one end of which is inserted into a slurry tank (12), and the other end of which is connected to a sample barrel (10), and a valve group and a sampling pump (8) are arranged in sequence between the sampling tube (1) and the sample barrel (10); The valve group comprises a three-way pipe (3), one end of which is connected to the sampling pipe (1) via a hose valve (2), one end of which is connected to a sampling pump (8), and the other end of which is connected to a high-pressure water pipe (6) via an air-controlled water valve (5); During sampling, the slurry inside the slurry tank (12) is actively drawn by the sampling pump (8) and sequentially passes through the sampling tube (1), the hose valve (2), the three-way tube (3), and the sampling pump (8) to reach the sample barrel (10), thereby forming a sampling channel; During flushing, external high-pressure water passes through the high-pressure water pipe (6), the air-controlled water valve (5), and the sampling pump (8) in sequence to form a flushing channel.

2. A slurry sampling device according to claim 1, characterized in that: A one-way valve (4) is provided on the high-pressure water pipe (6). The one-way valve (4) is arranged between the air-controlled water valve (5) and the three-way pipe (3). The one-way valve (4) controls the high-pressure water to flow from the high-pressure water pipe (6) to the three-way pipe (3) in one direction.

3. A slurry sampling device according to claim 2, characterized in that: An elbow (11) is connected between the sampling tube (1) and the hose valve (2) and is used to change the conveying angle of the sampling tube (1).

4. A slurry sampling device according to claim 3, characterized in that: A manual valve (7) is provided at the end of the high-pressure water pipe (6) away from the three-way pipe (3).

5. A slurry sampling device according to claim 4, characterized in that: The hose valve (2), the air-controlled water valve (5) and the sampling pump (8) are all controlled on and off by electromagnetic valves, and each of the electromagnetic valves is connected to the same control system.

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