Negative pressure type concentrate sampling device

Abstract

The utility model provides a negative pressure type concentrate sampling device which comprises a negative pressure sampling drill rod, a pipeline is connected to the right side of the upper portion of the negative pressure sampling drill rod, a cyclone dust collector is connected to the right side of the pipeline, a filter screen is connected to the upper portion of the cyclone dust collector, and the left end and the right end of the bottom of the cyclone dust collector are connected with a material returning barrel and a sampling and collecting barrel respectively. A high negative pressure fan is connected above the filter screen through a top pipeline, the top of the negative pressure sampling drill rod is connected with a guide pipe, a pulley mechanism is nested on the outer side of the guide pipe, and a left pressure switch is mounted at an outlet above the negative pressure sampling drill rod. According to the utility model, closed-loop control is carried out on each link, full-automatic concentrate powder sampling can be realized, personnel participation is avoided, and the working environment is improved. Full-section sampling is realized, and the representativeness of the sample is ensured.

Description

Technical Field

[0001] This utility model relates to the field of mineral testing equipment technology, and in particular to a negative pressure concentrate sampling device. Background Technology

[0002] With the development of technology, the content of concentrate powder and trace element powder required by metal smelting and other industries needs to be tested. The sampling results will directly affect the quality of product production and the economic benefits of trade settlement. At present, the main method is to manually insert a sampling probe into the ore powder in the carriage. The insertion depth is insufficient, the sampling is not full-section sampling, and the sample representativeness is insufficient. While the robotic arm can hold the sampling probe to insert into the ore powder, the cost of the robotic arm is high, the depth of the ore powder is not easy to detect, the insertion depth of the sampling probe cannot completely touch the carriage, and there will be a delay when the controller is equipped with a pressure sensor. The sampling probe is prone to damage to the bottom of the carriage and is prone to blockage. It is necessary to knock it to remove the sample, which will have a negative impact on the working environment. Many factors of human intervention lead to unstable sampling representativeness and even fraud. Automated sampling probe is just a simple round tube, which is prone to blockage and requires knocking to remove, affecting sampling efficiency and damaging the working environment. Utility Model Content

[0003] The purpose of this utility model is to solve the problems existing in the above-mentioned background technology and to propose a negative pressure concentrate sampling device.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A negative pressure concentrate sampling device includes a negative pressure sampling probe. A pipe is connected to the upper right side of the negative pressure sampling probe, and a cyclone dust collector is connected to the right side of the pipe. A filter screen is connected to the upper part of the cyclone dust collector. A return material bucket and a sampling collection bucket are respectively connected to the left and right ends of the bottom of the cyclone dust collector. A high negative pressure fan is connected to the upper part of the filter screen through a top pipe. A guide tube is connected to the top of the negative pressure sampling probe, and a pulley mechanism is nested on the outside of the guide tube. A left pressure switch is installed at the upper outlet of the negative pressure sampling probe.

[0006] Preferably, the negative pressure sampling probe consists of an inner tube and an outer tube, and an air flow field is formed inside the inner tube and the outer tube. The mineral powder is drawn into the pipeline along with the air through the negative pressure formed by the inner tube.

[0007] Preferably, the negative pressure sampling probe has evenly distributed small holes on the outer side of its top, through which airflow enters the bottom of the negative pressure sampling probe, and a flow-guiding and air-sealing ring is installed at the bottom of the negative pressure sampling probe.

[0008] Preferably, the pulley mechanism includes a fixed pulley, a movable pulley, a movable bracket, a spring, and a reduction motor. The movable pulley is mounted on the movable bracket, a spring is mounted on the bottom right side of the movable bracket, and a reduction motor is mounted on the front end of the movable pulley. The pulley mechanism is mounted on a trolley, and the trolley is positioned and confirmed by the system control.

[0009] Preferably, the filter screen is installed at the air outlet above the center of the cyclone dust collector, and a right pressure switch is installed at the rear end of the filter screen to determine whether the filter screen is clogged.

[0010] Preferably, both the return bucket and the collection bucket are placed on the weighing equipment.

[0011] 1. Sampling is performed using a pneumatic conveying method. During sampling, a negative pressure sampling probe is inserted downwards, preventing blockage inside the tube. Mineral powder is delivered to the sampling collection bucket in real time. No residue is easily left inside the tube, eliminating the need for additional cleaning.

[0012] 2. A pulley mechanism is used to drive the movement up and down through friction between the movable pulley and the guide tube. Because friction has a limit, when the negative pressure sampling probe touches the bottom of the vehicle, the pulley will slip, and the negative pressure sampling probe will not damage the vehicle. There is no need for a pressure sensor to determine whether it has touched the bottom, thus reducing equipment costs. Using a negative pressure sampling probe can determine whether it has touched the bottom, and the control logic can be changed by sending instructions to the system through a pressure switch. According to the sampling efficiency requirements, multiple negative pressure sampling probes can be connected in parallel to improve sampling efficiency. Attached Figure Description

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

[0014] Figure 2 This is a front cross-sectional view of a partial structure of the negative pressure sampling probe in this utility model;

[0015] Figure 3 This is a partial front view of the pulley mechanism in this utility model;

[0016] Figure 4 This is a top view of a partial structure of the pulley mechanism in this utility model;

[0017] Figure 5 This is a partial structural diagram of the cyclone dust collector in this utility model.

[0018] Legend:

[0019] Negative pressure sampling probe 100, inner tube 101, outer tube 102, air-sealing guide ring 103, pipe 200, cyclone dust collector 300, filter screen 301, return material bucket 302, sampling collection bucket 303, high negative pressure fan 400, guide tube 500, pulley mechanism 600, fixed pulley 601, movable pulley 602, movable bracket 603, spring 604, geared motor 605, left pressure switch 700, right pressure switch 800. Detailed Implementation

[0020] Example 1, referring to Figure 1-5 A negative pressure concentrate sampling device includes a negative pressure sampling probe 100, a pipe 200 connected to the upper right side of the negative pressure sampling probe 100, a cyclone dust collector 300 connected to the right side of the pipe 200, a filter screen 301 connected to the upper part of the cyclone dust collector 300, a return material bucket 302 and a sampling collection bucket 303 respectively connected to the left and right ends of the bottom of the cyclone dust collector 300, a high negative pressure fan 400 connected to the upper part of the filter screen 301 through a top pipe, a guide pipe 500 connected to the top of the negative pressure sampling probe 100, a pulley mechanism 600 nested on the outside of the guide pipe 500, and a left pressure switch 700 installed at the upper outlet of the negative pressure sampling probe 100.

[0021] The negative pressure sampling probe 100 consists of an inner tube 101 and an outer tube 102. An air flow field is formed inside the inner tube 101 and the outer tube 102. The mineral powder is drawn into the pipeline 200 along with the air through the negative pressure formed by the inner tube 101.

[0022] The negative pressure sampling probe 100 has evenly distributed small holes on the top outer side. Airflow enters the bottom of the negative pressure sampling probe 100 through the small holes. A flow guide and air-closing ring 103 is installed at the bottom of the negative pressure sampling probe 100.

[0023] Using the special design of the negative pressure sampling probe 100, the special air-sealing ring 101 at the bottom can ensure that there is still air flow when sampling mineral powder at great depths, without the pipe being sealed and causing the sampling probe tube to be blocked. Furthermore, when the sampling touches the bottom of the carriage, the air duct can be closed, causing the negative pressure in the pipe to rise rapidly and triggering the signal of the left pressure switch 700.

[0024] The pulley mechanism 600 includes a fixed pulley 601, a movable pulley 602, a movable bracket 603, a spring 604, and a reduction motor 605. The movable pulley 602 is mounted on the movable bracket 603. The spring 604 is mounted on the bottom right side of the movable bracket 603. The reduction motor 605 is mounted on the front end of the movable pulley 602. The pulley mechanism 600 is mounted on a trolley, and the trolley is positioned and confirmed by the system control.

[0025] The movable pulley 602 is pressed against the guide tube 500 by the spring force of the spring 604. A geared motor 605 is installed on one side of the movable pulley 602 to drive the rotation of the movable pulley 602. The guide tube 500 and the negative pressure sampling probe 100 are moved up and down by friction to achieve the operation.

[0026] The pulley mechanism 600 is installed on the mobile platform of the trolley. The conveying pipe 200 transports the sample to the sample collection chamber along the trolley. The cyclone dust collector 300 and the high negative pressure fan 400 are installed in the sample collection chamber. After the system moves the negative pressure sampling probe 100 to the designated point according to the coordinates of the random sampling point, the pulley mechanism 600 lowers the negative pressure sampling probe 100 to the concentrate powder working surface. The high negative pressure fan 400 is turned on to start the sampling work until the negative pressure sampling probe 100 touches the bottom of the carriage. The left pressure switch 700 is triggered to send a stop sampling signal, and the high negative pressure fan 400 is turned off. The pulley mechanism 600 lifts the negative pressure sampling probe 100. This is the end of one sampling point work cycle.

[0027] The signal provided by the left pressure switch 700 is mainly used to control the shutdown of the high negative pressure fan 400 and the stop of the geared motor 605, so as to stop the sampling action.

[0028] Example 2 differs from Example 1 in that, in this example, the filter screen 301 is installed at the air outlet above the center of the cyclone dust collector 300, and a right pressure switch 800 is installed at the rear end of the filter screen 301 to determine whether the filter screen 301 is blocked.

[0029] Both the return material bin 302 and the collection bin 303 are placed on the weighing equipment;

[0030] A right pressure switch 800 is installed at the rear end of filter screen 301 to determine whether filter screen 301 is clogged;

[0031] Weighing equipment is used to detect the quantity taken from a container to prevent exceeding the container's capacity;

[0032] This patented control device uses a cyclone dust collector 300 with a filter screen 301 installed on the top to prevent mineral powder from being sucked into the high negative pressure fan 400, which would cause equipment maintenance costs and environmental degradation. A return bucket 302 is installed at the bottom to collect excess samples and return them to the vehicle, reducing the number of samples taken and thus reducing the workload. Small holes are opened on the side of the cyclone dust collector 300 and a collection bucket 303 is installed to store the final samples that need to be sent for testing.

[0033] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several modifications and improvements can be made without departing from the concept of this utility model, and these should also be considered within the scope of protection of this utility model. These will not affect the implementation effect of this utility model or the practicality of the patent.

Claims

1. A negative pressure concentrate sampling device, comprising a negative pressure sampling probe (100), characterized in that, A pipe (200) is connected to the upper right side of the negative pressure sampling probe (100), and a cyclone dust collector (300) is connected to the right side of the pipe (200). A filter screen (301) is connected to the upper part of the cyclone dust collector (300). A return material bucket (302) and a sampling collection bucket (303) are respectively connected to the left and right ends of the bottom of the cyclone dust collector (300). A high negative pressure fan (400) is connected to the upper part of the filter screen (301) through a top pipe. A guide tube (500) is connected to the top of the negative pressure sampling probe (100). A pulley mechanism (600) is nested on the outside of the guide tube (500). A left pressure switch (700) is installed at the upper outlet of the negative pressure sampling probe (100).

2. The negative pressure concentrate sampling device according to claim 1, characterized in that, The negative pressure sampling probe (100) consists of an inner tube (101) and an outer tube (102). An air flow field is formed inside the inner tube (101) and the outer tube (102). The mineral powder is drawn into the pipeline (200) along with the air through the negative pressure formed by the inner tube (101).

3. The negative pressure concentrate sampling device according to claim 1, characterized in that, The negative pressure sampling probe (100) has evenly distributed small holes on the outer side of its top. Airflow enters the bottom of the negative pressure sampling probe (100) through the small holes. A flow guide and air-closing ring (103) is installed at the bottom of the negative pressure sampling probe (100).

4. The negative pressure concentrate sampling device according to claim 1, characterized in that, The pulley mechanism (600) includes a fixed pulley (601), a movable pulley (602), a movable bracket (603), a spring (604), and a reduction motor (605). The movable pulley (602) is mounted on the movable bracket (603). A spring (604) is mounted on the bottom right side of the movable bracket (603). A reduction motor (605) is mounted on the front end of the movable pulley (602). The pulley mechanism (600) is mounted on a crane, and the crane is positioned and confirmed by the system control.

5. The negative pressure concentrate sampling device according to claim 1, characterized in that, The filter screen (301) is installed at the air outlet above the center of the cyclone dust collector (300). A right pressure switch (800) is installed at the rear end of the filter screen (301) to determine whether the filter screen (301) is blocked.

6. The negative pressure concentrate sampling device according to claim 1, characterized in that, Both the return bucket (302) and the collection bucket (303) are placed on the weighing equipment.

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