A coal sampling device for improving the representativeness of the sampling of incoming coal

Abstract

The utility model discloses a coal taking device of being favorable to improve the sampling representativeness of factory coal, it includes the sampling tube of coal taking machine, be equipped with screw rod in the sampling tube, be equipped with sampling box on the sampling tube upper end, sampling box lower extreme and upper end are equipped with sample discharge gate and sample feed port respectively, sample feed port with sampling tube intercommunication, be equipped with the feed port size adjusting device for adjusting the feed quantity at sample feed port, the utility model is favorable to improve the sampling representativeness, and the objective reaction factory coal quality.

Description

Technical Field

[0001] This utility model relates to a coal sampling device that is beneficial to improving the representativeness of coal samples taken from the plant, and belongs to the field of coal sampling tools. Background Technology

[0002] When new coal is delivered, the thermal power plant operation department samples the coal powder in the car to test whether the quality meets the usage requirements. The existing sampling machine has a screw rod inside the sampling tube, and a sampling box is set at the top of the sampling tube. The sampling box has a sample inlet at the top. During sampling, the sample is transported to the sample inlet by the screw rod for collection. During use, the applicant found that when the existing device collects coal samples, because the sample opening size is uniform, the sample transported during feeding tends to fill the sample box in advance, making it impossible to collect other layers of coal sample on the screw rod. As a result, the sampling accuracy of coal is poor, affecting the sampling effect.

[0003] In other words, there is a need for a coal sampling device that can improve the representativeness of coal sampling, enhance sampling effectiveness, and ensure the accuracy of subsequent test results. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a coal sampling device that is conducive to improving the representativeness of incoming coal sampling, improving the sampling effect, and ensuring the accuracy of subsequent test results; it can overcome the shortcomings of the prior art.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] This utility model discloses a coal sampling device that is beneficial to improving the representativeness of coal samples taken from the plant. It includes a sampling tube of a coal sampling machine, a spiral rod inside the sampling tube, a sampling box at the upper end of the sampling tube, a sample outlet and a sample inlet at the lower and upper ends of the sampling box, respectively, the sample inlet being connected to the sampling tube, and a feed inlet size adjustment device for adjusting the feed amount at the sample inlet.

[0007] The above-mentioned feed inlet size adjustment device includes a flap and a flap rotating shaft provided at the sample feed inlet. The flap can be rotated to form an angle of 0-90 degrees with the sample feed inlet.

[0008] As mentioned above, a hand handle is provided at one end of the flip plate pivot.

[0009] A motor is installed at one end of the aforementioned flap shaft.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] 1. This utility model uses a feed inlet size adjustment device to repeatedly open and close the sample feed inlet or adjust its size as needed, thereby limiting the amount of sample entering and ensuring that the sampling box has reserved volume for collecting samples from different coal seams. This allows samples from different coal seams to be collected, thus improving the accuracy of coal sampling and the representativeness of subsequent samples.

[0012] 2. The feed inlet size adjustment device includes a flap and a flap rotating shaft at the sample feed inlet. The flap is fixed on the flap rotating shaft. The flap can be rotated to form an angle of 0-90 degrees with the sample feed inlet. The flap can be rotated by rotating the flap rotating shaft, thereby adjusting the size of the sample feed inlet.

[0013] 3. A hand handle is provided at one end of the flip plate shaft. This is a manual control scheme. When sampling, the flip plate shaft is rotated by holding the hand handle, thereby adjusting the size of the sample inlet or repeatedly opening and closing it, so that samples from different coal seams can be sampled.

[0014] 4. A motor is installed at one end of the flip plate shaft 6. This is an electric control scheme. The motor is set to rotate the flip plate shaft back and forth through the motor controller, or the flip plate shaft can be rotated to a fixed position as needed, so that the flip plate and the sample inlet have a fixed angle. This adjusts the size of the sample inlet, so that samples from different layers conveyed by the screw rod can be collected into the sampling box, thereby improving the sampling accuracy.

[0015] Other advantages, objectives, and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination and study, or may be learned from practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the following will describe this utility model in further detail with reference to the accompanying drawings, wherein:

[0017] Figure 1 This is a schematic diagram of the connection structure of this utility model.

[0018] Figure 2 This is a perspective structural diagram of the present invention.

[0019] Figure 3 This is a half-sectional structural diagram of the present invention.

[0020] Among them, sampling tube 1; spiral rod 2; sampling box 3; sample inlet 4; flip plate 5; flip plate rotating shaft 6. Detailed Implementation

[0021] The preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that the preferred embodiments are for illustrative purposes only and are not intended to limit the scope of protection of the present invention.

[0022] Example 1

[0023] like Figures 1-3 As shown, this utility model discloses a coal sampling device that improves the representativeness of coal samples taken from the coal mine. It includes a sampling tube 1 of the coal sampling machine, a spiral rod 2 inside the sampling tube 1, and a sampling box 3 at the upper end of the sampling tube 1. The sampling box 3 has a sample outlet and a sample inlet 4 at its lower and upper ends, respectively. The sample inlet 4 is connected to the sampling tube 1. A feed inlet size adjustment device is provided at the sample inlet 4 to adjust the feed amount. The feed inlet size adjustment device can repeatedly open and close the sample inlet 4 or adjust its size as needed, thereby limiting the amount of sample entering and ensuring that the sampling box 3 has a reserved volume for collecting samples from different coal seams. In this way, samples from different coal seams can be collected, which improves the accuracy of coal sampling and the accuracy of subsequent sample testing.

[0024] Furthermore, the feed inlet size adjustment device includes a flap 5 and a flap shaft 6 provided at the sample feed inlet 4. The flap 5 is fixed on the flap shaft 6. The flap 5 can rotate to form an angle of 0-90 degrees with the sample feed inlet 4. The sampling box 3 at the sample feed inlet 4 is hinged with a mounting arm and mounting hole for the shaft. The flap 4 can be rotated by rotating the flap shaft 6, thereby adjusting the size of the sample feed inlet 4.

[0025] Meanwhile, a hand handle is provided at one end of the flip plate shaft 6. When sampling, the flip plate shaft 6 is rotated by holding the hand handle, thereby adjusting the size of the sample inlet 4, or repeatedly opening and closing it, so that samples from different coal seams can be sampled.

[0026] Example 2

[0027] This embodiment is an improvement on embodiment 1. Specifically, a motor is installed at one end of the flip plate shaft 6 (the motor is not shown in the figure). The installation method is conventional and there is no special design. The motor is set by the motor controller to make the motor rotate the flip plate shaft 6 back and forth, or to rotate the flip plate shaft 6 to a fixed position as needed, so that the flip plate 5 and the sample inlet 4 have a fixed angle. This adjusts the sample inlet 4 to a certain size, so that samples from different layers conveyed by the screw rod 2 can be collected into the sampling box 3, thereby improving the sampling accuracy.

[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to restrict the present utility model in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments without departing from the technical solution of the present utility model and based on the technical essence of the present utility model shall still fall within the scope of the technical solution of the present utility model.

Claims

1. A coal sampling device for improving the sampling representativeness of incoming coal, comprising a sampling tube (1) of a coal sampling machine, a screw rod (2) arranged in the sampling tube (1), a sampling box (3) arranged at the upper end of the sampling tube (1), a sample outlet and a sample inlet (4) arranged at the lower end and the upper end of the sampling box (3) respectively, and the sample inlet (4) being in communication with the sampling tube (1), characterized in that, The sample inlet (4) is provided with a size adjusting device for adjusting the amount of sample.

2. The coal sampling device for improving the sampling representativeness of incoming coal of claim 1, wherein, The size adjusting device comprises a flap (5) and a flap rotating shaft (6) provided at the sample inlet (4), and the flap (5) can be rotated to form an angle of 0-90 degrees with the sample inlet (4).

3. The coal sampling device for improving the sampling representativeness of incoming coal of claim 2, wherein, One end of the flap rotating shaft (6) is provided with a handgrip.

4. The coal sampling device for improving the sampling representativeness of incoming coal of claim 2, wherein, One end of the flap rotating shaft (6) is provided with a motor.

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