A stirring rod for dropping trace coal samples and its application

Abstract

The present application discloses a stirring rod for dropping trace coal samples and its application, comprising a main body and a stirring rod head detachably connected to the main body, the stirring rod head having a free end, and a notch being provided on a side wall close to the free end, the notch forming a guide portion for dropping coal samples, a first stirring mechanism being provided on the side wall of the stirring rod head close to the guide portion, for stirring and dropping low-position coal samples, and a second stirring mechanism being provided on the side wall of the stirring rod head away from the free end, for stirring and dropping high-position coal samples; the present application satisfies the flow dropping control of coal samples in a hopper at different states of high and low positions by arranging the first stirring mechanism and the second stirring mechanism at different height positions of the stirring head, thereby realizing the dropping of large-flow coal samples when the coal is at high position and the dropping of trace coal samples when the coal is at low position, and has an ingenious structure and a simple and convenient operation.

Description

Technical Field

[0001] The present application relates to the technical field of coal quality testing and analysis, and in particular to a stirring rod for dropping trace coal samples and its application. Background Art

[0002] In the field of traditional coal quality analysis, whether it is industrial analysis or elemental analysis, the analytical test coal samples are generally weighed manually first. The weight of the analytical test coal samples varies from 0.05g, 0.2g to 1g according to the analysis items, and the deviation is generally within 10%. Sample weighing is mostly micro-weighing, with high repeatability, tedious and time-consuming.

[0003] With the continuous advancement of technology, coal quality analysis has begun to develop towards intelligence, realizing the automatic weighing of analytical test coal samples, liberating manpower, and making great progress in technology. However, since it is the weighing of trace coal samples, the traceability and reliability of the falling material are particularly important. Summary of the invention

[0004] The embodiment of the present application provides a stirring rod for dropping a trace coal sample and its application, which realizes the dropping of a large flow rate of coal sample when the coal is at a high level and the dropping of a trace amount of coal sample when the coal is at a low level, ensures the accuracy of the data during weighing, and thus ensures the accuracy of the experimental results of coal quality analysis; the technical solution is as follows:

[0005] According to one embodiment, a stirring rod for dropping trace coal samples includes a main body and a stirring rod head detachably connected to the main body, the stirring rod head having a free end, and a notch is provided on a side wall close to the free end, the notch forming a guide portion for the coal sample to drop, a first stirring mechanism is provided on the side wall of the stirring rod head close to the guide portion, for stirring and dropping low-position coal samples, and a second stirring mechanism is provided on the side wall of the stirring rod head away from the free end, for stirring and dropping high-position coal samples.

[0006] For example, in a stirring rod for dropping trace coal samples provided in one embodiment, the first stirring mechanism is a plurality of teeth arranged at equal intervals, and two groups of radially opposite teeth are provided on the side wall of the stirring rod head close to the guide portion, and the width of the teeth in a direction perpendicular to the center line of the stirring rod increases successively along the direction from the free end to the main body.

[0007] For example, in a stirring rod for dropping trace coal samples provided in one embodiment, the second stirring mechanism is a scraper parallel to the center line of the stirring rod, and two radially opposite scrapers are provided on the side wall of the stirring rod head away from the free end, and the connection between the scraper and the side wall of the stirring rod head is hollow, so that the coal material can pass through the hollow part to reduce the stirring resistance.

[0008] For example, in an embodiment, a stirring rod for dropping trace coal samples also includes a through hole that penetrates the stirring rod head in a direction perpendicular to the center line of the stirring rod head. The through hole is located between two groups of radially opposite teeth to allow coal to pass through the through hole to reduce stirring resistance.

[0009] For example, in one embodiment, a stirring rod for dropping trace coal samples also includes a flap, which is a convex strip protruding from the side wall of the stirring rod head. The flap is located between two groups of radially opposite teeth and is used to increase the fluidity of the coal sample during the rotation of the stirring rod.

[0010] For example, in a stirring rod for dropping a trace amount of coal sample provided in one embodiment, the body and the stirring rod head are detachably connected via a first thread pair.

[0011] For example, in a stirring rod for dropping trace coal samples provided in one embodiment, a second thread pair is provided at one end of the body close to the stirring rod head, and the body and the stirring rod head are fixedly connected via the second thread pair.

[0012] For example, in a stirring rod for dropping trace coal samples provided in one embodiment, the stirring rod head between the free end and the first stirring mechanism is conical, and the diameter of the stirring rod head increases sequentially along the direction from the free end to the first stirring mechanism.

[0013] The second aspect of the present application provides an application of a stirring rod for dropping trace coal samples, which also includes a hopper, the hopper having a discharge port, the stirring rod head being located in the hopper to stir the coal sample contained in the hopper and drop the coal sample through the discharge port.

[0014] For example, in the application of a stirring rod for dropping trace coal samples provided in one embodiment, when the coal sample contained in the hopper is at a low position, the free end of the stirring rod head is located in the discharge port, the low-position coal sample is stirred by the first stirring mechanism, and the coal sample is dropped through the gap between the free end and the discharge port; when the coal sample contained in the hopper is at a high position, the free end of the stirring rod head is away from the discharge port, the high-position coal sample is stirred by the second stirring mechanism, and the coal sample is dropped through the discharge port.

[0015] The beneficial effects brought by a stirring rod for dropping trace coal samples and its application provided in some embodiments of the present application are as follows: according to the above embodiments, the present application can adapt to the dropping of samples of various particle sizes by designing the main body and the stirring rod head to be detachable, which is convenient for replacing stirring rod heads of different sizes. When in use, stirring rod heads of different sizes and specifications corresponding to samples of different particle sizes are installed; by providing a notch near the free end of the stirring rod head, the stirring rod head at this part has a streamlined asymmetric structure, so that during the rotation of the stirring rod, the coal material increases the fluidity of the coal sample through the notch, improves the smoothness of the dropping, and facilitates It is used to separate a large amount of powdered coal samples to form a fine coal flow movement for quantitative transportation or weighing; by arranging a first stirring mechanism and a second stirring mechanism at different heights on the stirring rod head, the first stirring mechanism is used to drop a trace amount of coal samples when the coal material is at a low level, and the second stirring mechanism is used to drop a large flow of coal samples when the coal material is at a high level. This can meet the dropping needs of coal samples with different flow rates, achieve precise adjustment of the dropping, improve the micro-control and reliability of the dropping, avoid errors in the weighing results caused by uneven dropping, ensure the accuracy of the data during weighing, and thus ensure the accuracy of the experimental results of coal quality analysis. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic diagram of the structure of a stirring rod for dropping a trace coal sample provided in an embodiment of the present application;

[0018] Figure 2 This is a schematic diagram of the structure of a stirring rod for dropping a trace coal sample provided in another embodiment of the present application;

[0019] Figure 3 A schematic diagram of an application state of a stirring rod for dropping a trace amount of coal sample in the present application;

[0020] Figure 4 A schematic diagram of another application state of the stirring rod for dropping trace coal samples in the present application.

[0021] Figure numerals: 1-main body, 2-second thread pair, 3-first thread pair, 4-second stirring mechanism, 5-stirring rod head, 6-first stirring mechanism, 7-notch, 8-free end, 9-perforation, 10-ailer, 11-hopper, 12-discharge port, 13 hollow part. DETAILED DESCRIPTION

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

[0023] Unless otherwise defined, the technical terms or scientific terms used in the present disclosure should be understood by people with ordinary skills in the field to which the present disclosure belongs. The "first", "second" and similar words used in the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0024] The present application provides a stirring rod for dropping a trace amount of coal sample, such as Figure 1As shown, it includes a main body 1 and a stirring rod head 5 detachably connected to the main body 1, the stirring rod head 5 has a free end 8, and a notch 7 is provided on the side wall near the free end 8, the notch 7 forms a guide portion for the coal sample to fall, a first stirring mechanism 6 is provided on the side wall of the stirring rod head 5 near the guide portion, which is used for stirring and dropping low-position coal samples, and a second stirring mechanism 4 is provided on the side wall of the stirring rod head 5 away from the free end 8, which is used for stirring and dropping high-position coal samples. According to the above embodiment, the present application designs the body 1 and the stirring rod head 5 to be detachable, so that the stirring rod heads 5 of different sizes can be easily replaced, and can adapt to the dropping of samples of various particle sizes. When in use, the stirring rod heads 5 of different sizes and specifications can be installed according to the samples of different particle sizes; by setting a notch 7 at the free end 8 near the stirring rod head 5, the stirring rod head 5 at this part has a streamlined asymmetric structure, so that during the rotation of the stirring rod, the coal material passes through the notch 7 to increase the fluidity of the coal sample, improve the smoothness of the dropping, and facilitate the separation of a large amount of powdered coal samples to form fine Micro coal flow movement is used for quantitative transportation or weighing; by arranging the first stirring mechanism 6 and the second stirring mechanism 4 at different heights on the stirring rod head 5, the first stirring mechanism 6 is used for dropping a trace amount of coal samples when the coal material is at a low level, and the second stirring mechanism 4 is used for dropping a large flow of coal samples when the coal material is at a high level. This can meet the dropping needs of coal samples with different flow rates, achieve precise adjustment of the dropping, improve the micro-control and reliability of the dropping, avoid errors in the weighing results caused by uneven dropping, ensure the accuracy of the data during weighing, and thus ensure the accuracy of the experimental results of coal quality analysis.

[0025] For example, in a stirring rod for dropping a trace amount of coal sample provided in one embodiment, Figure 1 As shown, the first stirring mechanism 6 is a plurality of teeth arranged at equal intervals, and two groups of the teeth are arranged radially opposite to each other on the side wall of the stirring rod head 5 near the guide portion, and the width of the teeth in the direction perpendicular to the center line of the stirring rod increases successively along the direction from the free end 8 to the main body 1. Specifically, the first stirring mechanism 6 includes two groups of teeth groups that are radially opposite to each other, which are respectively located on both sides of the stirring rod head 5, and each tooth group includes 1, 2, 3 or 4 teeth arranged at equal intervals. According to the above embodiment, the stirring rod drives the coal sample to flow through the teeth and the spacing between the teeth during the rotation process, and the width of the teeth in the direction perpendicular to the center line of the stirring rod decreases successively from top to bottom, so that the stirring rod head has a conical structure to adapt to the structure of the hopper, and at the same time, it can achieve full contact and stirring of low-position coal samples, and realize the falling of trace coal samples.

[0026] For example, in a stirring rod for dropping a trace amount of coal sample provided in one embodiment, Figure 1As shown, the second stirring mechanism 4 is a scraper parallel to the center line of the stirring rod, and two radially opposite scrapers are provided on the side wall of the stirring rod head 5 away from the free end 8, and the connection between the scraper and the side wall of the stirring rod head 5 is a hollow part 13, so that the coal material passes through the hollow part 13 to reduce the stirring resistance. According to the above embodiment, by arranging scrapers covering the side wall at the stirring rod head 5 away from the free end 8, the stirring head 5 is in full contact with the coal material when the coal sample is at a high position, and the scraper is driven to stir the coal material during the rotation of the stirring rod, and by setting the scraper as a hollow structure, the coal sample can pass through the hollow part, reducing the resistance to coal stirring, increasing the fluidity of the coal material, avoiding coal accumulation, and realizing the flow and falling of the coal flow.

[0027] For example, in a stirring rod for dropping a trace amount of coal sample provided in one embodiment, Figure 2 As shown, it also includes a through hole 9 that penetrates the stirring rod head 5 in a direction perpendicular to the center line of the stirring rod head 5, and the through hole 9 is located between the two groups of radially opposite teeth, so that the coal material passes through the through hole 9 to reduce the stirring resistance. According to the above embodiment, since the free end 8 of the stirring rod head 5 is close to the discharge port, in order to avoid the accumulation of coal material at the discharge port, the through hole 9 is opened near the free end 8 of the stirring rod head 5, so that the head of the stirring rod head forms a structure similar to "hollow", so that the coal material can pass through the through hole 9, reducing the resistance to coal material stirring, thereby improving the fluidity of the coal material, realizing the flow of coal flow and falling, and improving the smoothness of falling.

[0028] For example, in a stirring rod for dropping a trace amount of coal sample provided in one embodiment, Figure 2 As shown, it also includes an aileron 10, which is a convex strip convexly arranged on the side wall of the stirring rod head 5, and the aileron 10 is located between two groups of radially opposite teeth, and is used to increase the fluidity of the coal sample during the rotation of the stirring rod. According to the above embodiment, by arranging the aileron 10 at the head of the stirring rod head, the aileron 10 rotates synchronously during the rotation of the stirring rod, and the rotation of the aileron 10 can increase the flow of the coal sample and improve the smoothness of the falling material.

[0029] For example, in a stirring rod for dropping a trace coal sample provided in an embodiment, the body 1 and the stirring rod head 5 are detachably connected via a first thread pair 3. Specifically, the body 1 and the stirring rod head 5 are connected via threaded engagement.

[0030] For example, in a stirring rod for dropping trace coal samples provided in one embodiment, a second thread pair 2 is provided at one end of the body 1 close to the stirring rod head 5 , and the body 1 and the stirring rod head 5 are fixedly connected via the second thread pair 2 .

[0031] For example, in a stirring rod for dropping trace coal samples provided in one embodiment, the stirring rod head 5 between the free end 8 and the first stirring mechanism 6 is conical, and the diameter of the stirring rod head 5 increases sequentially along the direction from the free end 8 to the first stirring mechanism 6.

[0032] The second aspect of the present application provides an application of a stirring rod for dropping a trace amount of coal sample, such as Figure 3-4 As shown, it also includes a hopper 11, and the hopper 11 has a discharge port 12. The stirring rod head 5 is located in the hopper 11 to stir the coal sample contained in the hopper 11 and discharge the coal through the discharge port 12.

[0033] For example, in an application of a stirring rod for dropping a trace amount of coal sample provided in an embodiment, when the coal sample contained in the hopper 11 is at a low level, such as Figure 3 As shown, the free end 8 of the stirring rod head 5 is located in the discharge port 12, and the low-position coal sample is stirred by the first stirring mechanism 6, and the coal falls through the gap between the free end 8 and the discharge port 12; when the coal sample contained in the hopper 11 is at a high position, as shown in FIG. Figure 4 As shown, the free end 8 of the stirring rod head 5 is away from the discharge port 12 , and the high-position coal sample is stirred by the second stirring mechanism 4 and falls through the discharge port 12 .

[0034] The present application arranges the first stirring mechanism and the second stirring mechanism at different heights of the stirring head to meet the flow and falling control of the coal sample in the hopper at different states of high and low positions, thereby realizing the falling of large-flow coal samples when the coal is at high positions and the falling of trace coal samples when the coal is at low positions. The structure is ingenious and the operation is simple and convenient, which reduces labor intensity, ensures the accuracy of data during weighing, avoids errors in weighing results due to uneven dropping, and thus ensures the accuracy of data in experimental results of coal quality analysis.

[0035] Although the embodiments of the present application have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the invention as disclosed in the accompanying claims.

Claims

1. A stirring rod for dropping trace coal samples, characterized in that: include: A body; and a stirring rod head detachably connected to the body, the stirring rod head having a free end, and a notch is provided on the side wall near the free end, the notch forming a guide portion for the coal sample to fall, a first stirring mechanism is provided on the side wall of the stirring rod head near the guide portion, for stirring and falling low-position coal samples, and a second stirring mechanism is provided on the side wall of the stirring rod head away from the free end, for stirring and falling high-position coal samples, the first stirring mechanism is a plurality of teeth arranged at equal intervals, and two groups of radially opposite teeth are provided on the side wall of the stirring rod head near the guide portion, and the width of the teeth in a direction perpendicular to the center line of the stirring rod is along the direction from the free end to the body. The directions increase successively, the second stirring mechanism is a scraper parallel to the center line of the stirring rod, and two radially opposite scrapers are arranged on the side wall of the stirring rod head away from the free end, and the connection between the scraper and the side wall of the stirring rod head is hollow, so that the coal material passes through the hollow part to reduce the stirring resistance, and also includes a through hole penetrating the stirring rod head in a direction perpendicular to the center line of the stirring rod head, the through hole is located between two groups of radially opposite teeth, so that the coal material passes through the through hole to reduce the stirring resistance, and also includes an aileron, the aileron is a convex strip protruding from the side wall of the stirring rod head, the aileron is located between the two groups of radially opposite teeth, and is used to increase the fluidity of the coal sample during the rotation of the stirring rod.

2. The stirring rod for dropping trace coal samples according to claim 1, characterized in that: The body and the stirring rod head are detachably connected via a first thread pair.

3. The stirring rod for dropping trace coal samples according to claim 1, characterized in that: A second thread pair is provided at one end of the body close to the stirring rod head, and the body and the stirring rod head are fixedly connected through the second thread pair.

4. The stirring rod for dropping trace coal samples according to claim 1, characterized in that: The portion of the stirring rod head between the free end and the first stirring mechanism is conical, and the diameter of the stirring rod head increases gradually along the direction from the free end to the first stirring mechanism.

5. The use of the stirring rod for dropping trace coal samples according to any one of claims 1 to 4, characterized in that: It also includes a hopper, which has a discharge port. The stirring rod head is located in the hopper to stir the coal sample contained in the hopper and discharge the coal through the discharge port.

6. The use of the stirring rod for dropping trace coal samples according to claim 5, characterized in that: When the coal sample contained in the hopper is at a low position, the free end of the stirring rod head is located in the discharge port, the low-position coal sample is stirred by the first stirring mechanism, and the material falls through the gap between the free end and the discharge port; when the coal sample contained in the hopper is at a high position, the free end of the stirring rod head is away from the discharge port, the high-position coal sample is stirred by the second stirring mechanism, and the material falls through the discharge port.

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