Coal sample weighing and adding device
By designing an automated coal sample weighing and loading device, the problems of cumbersome weighing operations and poor accuracy in coal analysis and testing have been solved. This device enables efficient and accurate weighing of coal samples and their inversion into the crucible, ensuring the reliability of the test data.
Patent Information
- Application Number
- CN202520615607.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-02
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-04-02
AI Technical Summary
In current coal analysis and testing, the weighing of coal samples is cumbersome and easily affected by human factors, resulting in poor accuracy. Furthermore, coal samples are prone to spillage or are affected by the external environment.
A coal sample weighing and dispensing device was designed, including a weighing component, a height adjustment component, and a dispensing component. The device achieves automated coal sample inversion and weighing by combining a sample bottle with a cap, a slide valve, and a feeding pipe connected by threads, along with a micro servo motor and worm gear transmission.
It improves the accuracy and efficiency of coal sample weighing, prevents coal sample spillage and external environmental influences, and ensures the reliability of test data.
Smart Images
Figure CN223870169U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of sample addition devices, specifically a coal sample weighing and addition device. Background Technology
[0002] In coal analysis and testing, accurate weighing of coal samples is a crucial step. Various characteristic indicators of coal, such as calorific value, ash content, volatile matter, and sulfur content, are directly related to the quality of the coal sample. Only by accurately weighing the coal sample can we ensure that the data obtained in subsequent testing accurately reflect the characteristics of the coal. For example, in the determination of calorific value, the accuracy of the coal sample's mass directly affects the accuracy of the final calorific value.
[0003] Currently, the industrial analyzers, sulfur analyzers, and calorimeters used for coal quality analysis all require operators to use a sample spoon to remove the coal sample from the sample bottle and add it to the weighing crucible. The operator then repeatedly adjusts the sample against the balance to control the mass within the required range. This process is cumbersome, time-consuming, and prone to spillage due to human error, resulting in sample loss and affecting weighing accuracy. Furthermore, the frequent opening and closing of the sample bottle exposes the coal sample to external environmental factors such as dust and moisture, further compromising the accuracy of the analytical results.
[0004] Therefore, in view of this, we have studied and improved the existing structure and its shortcomings, and provided a coal sample weighing and adding device in order to achieve a more practical purpose. Utility Model Content
[0005] The purpose of this invention is to provide a coal sample weighing and dispensing device to solve the problems mentioned in the background art.
[0006] In view of the above problems, the technical solution proposed by this utility model is as follows:
[0007] A coal sample weighing and dispensing device includes a weighing component, a height adjustment component, and a dispensing component. The height adjustment component is disposed outside the weighing component, and the dispensing component is disposed inside the height adjustment component. The weighing component is used for weighing coal samples, the height adjustment component is used for adjusting the height of the dispensing component, and the dispensing component is used for dispensing samples. The dispensing component includes a sample bottle, the top of which is externally threaded with a cap. A first baffle valve is installed on the upper end of the cap, a conical cylinder is installed on the upper end of the first baffle valve, a second baffle valve is installed on the upper end of the conical cylinder, and a discharge pipe is installed on the upper end of the second baffle valve. The top end of the discharge pipe is inclined. The cap, the first baffle valve, the conical cylinder, the second baffle valve, and the discharge pipe are interconnected.
[0008] Furthermore, a first connecting strip is installed on both sides of the sample bottle, and a first square groove is opened inside each of the two first connecting strips.
[0009] Furthermore, the height adjustment component includes a connecting frame, and a sliding seat is slidably provided inside the connecting frame. One end of the sliding seat is connected to a hollow ring, and the sample bottle is placed inside the hollow ring. Second connecting strips are installed on both sides of the top surface of the hollow ring near the first connecting strip. A second square groove is opened inside the two second connecting strips, and a square block is provided inside the adjacent first square groove and second square groove.
[0010] The beneficial effect of adopting the above-mentioned further solution is that, through the combined use of the first connecting strip, the second connecting strip, and the block, the sample bottle and the hollow ring are connected together. When the block is removed from the first and second square slots, the sample bottle and the hollow ring are no longer connected.
[0011] Furthermore, the outer wall of the block slides in conjunction with the inner walls of the first and second square grooves, and round rods are connected to the opposite sides of the two blocks. A cavity is opened inside one end of the slide block, and a micro servo motor is installed inside the cavity. The output end of the micro servo motor is connected to the hollow ring for transmission.
[0012] The beneficial effect of adopting the above-mentioned further solution is that, by using the round rod and the block in combination, the block is removed by pulling the round rod outward, so that the first connecting strip and the second connecting strip are no longer connected. Then, the operator removes the sample bottle from the hollow ring, opens the bottle cap, places the prepared coal sample into the sample bottle, tightens the bottle cap, shakes the sample bottle to mix the coal sample thoroughly, and then reinserts the sample bottle into the hollow ring, so that the first square groove on the first connecting strip and the second square groove on the second connecting strip are aligned. Then, the operator holds the round rod and inserts the block into the first square groove and the second square groove to reconnect the hollow ring and the sample bottle. Then, the operator starts the micro servo motor to make the hollow ring rotate, thereby inverting the sample bottle.
[0013] Furthermore, the connecting frame has a sliding groove inside, and the outer wall of the slide block at the end away from the hollow ring slides into contact with the inner wall of the sliding groove. The sliding groove has a screw inside, one end of which extends through the slide block to the outside and is threadedly connected to the slide block. The two ends of the screw are respectively connected to the inner wall of the sliding groove through bearings.
[0014] The beneficial effect of adopting the above-mentioned further solution is that, through the coordinated use of the screw, slide block and slide groove, when the screw rotates, the slide block connected to its external thread moves upward or downward under the sliding limit action of the slide groove, thereby adjusting the height of the sample feeding component, and thus adjusting the distance between the sample feeding component and the crucible placed on the weighing component.
[0015] Furthermore, an installation box is installed at the upper end of the connecting frame, the top end of the screw extends through the installation box into the interior and is fitted with a worm gear, a worm is rotatably connected inside the installation box, the worm and the worm gear mesh with each other, one end of the worm extends through the installation box into the exterior and is fitted with a knob.
[0016] The beneficial effect of adopting the above-mentioned further solution is that, through the coordinated use of the knob, worm gear and worm wheel, when the operator turns the knob, it is easy to drive the worm gear to rotate, and the worm gear drives the worm wheel to rotate. Since the worm wheel is sleeved on the outside of the screw near the top, the screw can then be rotated.
[0017] Furthermore, the weighing assembly includes a base, one side of the outer wall of the base is fixedly connected to one side of the connecting frame, a placement platform is installed on the top of the base, a groove is formed inside the top of the placement platform, a weighing plate is installed inside the groove, a weighing sensor is connected to the bottom of the weighing plate, a control panel is installed on the front of the placement platform, and the control panel is electrically connected to the weighing sensor through a wire.
[0018] The beneficial effect of adopting the above-mentioned further solution is that by placing the crucible on the weighing plate, the operator can know the weight of the crucible in advance, so as to facilitate the subsequent weight removal of the crucible. When the coal sample in the sample bottle is poured and falls into the crucible, the weight of the coal sample can be measured because the weighing sensor is connected to the weighing plate. Since the control panel is electrically connected to the weighing sensor through wires, the operator can conveniently obtain the coal sample weight data measured by the weighing sensor through the control panel.
[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: The coal sample weighing and adding device has a threaded connection between the sample bottle and the bottle cap, facilitating easy opening of the cap to add the coal sample. Simultaneously, it effectively prevents leakage or spillage of the coal sample during storage and adding. At this time, both the first and second slide valves are closed. Pulling the round rod outwards removes the block, disconnecting the first and second connecting strips. Then, the sample bottle is removed from the hollow ring, the cap is opened, the prepared coal sample is placed in the sample bottle, the cap is tightened, and the sample bottle is shaken to thoroughly mix the coal sample. Finally, the sample bottle is... After re-inserting the hollow ring and aligning the first square groove on the first connecting strip with the second square groove on the second connecting strip, the operator holds the round rod and inserts the block into the first and second square grooves to reconnect the hollow ring and the sample bottle. Then, the operator starts the micro servo motor to rotate the hollow ring, which in turn inverts the sample bottle. The operator then opens the first insert valve and then the second insert valve, connecting the bottle cap, the first insert valve, the conical cylinder, the second insert valve, and the feed pipe. The coal sample in the sample bottle will fall into the weighing crucible from the feed pipe opening under the action of gravity. Attached Figure Description
[0020] Figure 1A three-dimensional structural diagram of a coal sample weighing and dispensing device provided by this utility model;
[0021] Figure 2 A three-dimensional structural schematic diagram of the sample addition component of a coal sample weighing and adding device provided by this utility model;
[0022] Figure 3 An exploded three-dimensional structural diagram of the mounting ring of a coal sample weighing and adding device provided by this utility model;
[0023] Figure 4 A partial side cross-sectional view of the connecting frame of a coal sample weighing and adding device provided by this utility model;
[0024] Figure 5 A front cross-sectional view of the placement platform of a coal sample weighing and adding device provided by this utility model.
[0025] In the diagram: 1. Weighing assembly; 11. Base; 12. Placement platform; 13. Weighing plate; 14. Weighing sensor; 2. Height adjustment assembly; 21. Connecting frame; 22. Slide groove; 23. Slide seat; 24. Screw; 25. Mounting box; 26. Worm gear; 27. Worm; 28. Knob; 29. Hollow ring; 210. Second connecting strip; 211. Square block; 212. Round rod; 3. Sample feeding assembly; 31. Sample bottle; 32. Bottle cap; 33. First slide valve; 34. Conical cylinder; 35. Second slide valve; 36. Feed pipe; 37. First connecting strip. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Please see Figures 1-5This utility model provides a technical solution: a coal sample weighing and dispensing device, including a weighing component 1, a height adjustment component 2, and a dispensing component 3. The height adjustment component 2 is disposed outside the weighing component 1, and the dispensing component 3 is disposed inside the height adjustment component 2. The weighing component 1 is used for weighing the coal sample, the height adjustment component 2 is used for adjusting the height of the dispensing component 3, and the dispensing component 3 is used for dispensing the sample. The dispensing component 3 includes a sample bottle 31 with a bottle cap 32 threadedly connected to the top end. A first insert valve 33 is installed on the upper end of the bottle cap 32. A conical cylinder 34 is installed on the upper end of the first insert valve 33. A second insert valve 35 is installed on the upper end of the conical cylinder 34. A discharge pipe 36 is installed on the upper end of the second insert valve 35, and the top end of the discharge pipe 36 is inclined. The bottle cap 32, the first insert valve 33, the conical cylinder 34, the second insert valve 35, and the feed pipe 36 are interconnected. The sample bottle 31 is threadedly connected to the bottle cap 32, which facilitates opening the bottle cap 32 to add coal samples and effectively prevents leakage or spillage of coal samples during storage and sample addition. At this time, the first insert valve 33 and the second insert valve 35 are both closed. After the coal sample is put into the sample bottle 31 and shaken to mix it, it is inverted. Then, the first insert valve 33 is opened first, and then the second insert valve 35 is opened, so that the bottle cap 32, the first insert valve 33, the conical cylinder 34, the second insert valve 35, and the feed pipe 36 are interconnected. The coal sample in the sample bottle 31 will fall into the weighing crucible from the opening of the feed pipe 36 under the action of gravity.
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] Please see Figures 1-5This utility model provides a technical solution: First connecting strips 37 are installed on both outer sides of the sample bottle 31. Each of the two first connecting strips 37 has a first square groove inside. The height adjustment component 2 includes a connecting frame 21. A slide block 23 is slidably installed inside the connecting frame 21. One end of the slide block 23 is connected to a hollow ring 29. The sample bottle 31 is placed inside the hollow ring 29. Second connecting strips 210 are installed on both sides of the hollow ring 29 near the top surface of the first connecting strips 37. Each of the two second connecting strips 210 has a second square groove inside. A block 211 is provided inside adjacent first and second square grooves. The outer wall of the block 211 slides in cooperation with the inner wall of the first and second square grooves. A round rod 212 is connected to the opposite side of each block 211. A cavity is provided inside one end of the slide block 23. A round rod 212 is installed inside the cavity. Equipped with a micro servo motor, the output end of which is connected to the hollow ring 29. By pulling the round rod 212 outward, the block 211 is removed, thus decoupling the first connecting strip 37 and the second connecting strip 210. Then, the sample bottle 31 is removed from the hollow ring 29, the bottle cap 32 is opened, the prepared coal sample is placed in the sample bottle 31, the bottle cap 32 is tightened, and the sample bottle 31 is shaken to mix the coal sample thoroughly. The sample bottle is then reinserted into the hollow ring 29, aligning the first square groove on the first connecting strip 37 with the second square groove on the second connecting strip 210. The round rod 212 is then used to insert the block 211 into the first and second square grooves, reconnecting the hollow ring 29 and the sample bottle 31. The operator then activates the micro servo motor to rotate the hollow ring 29, thereby inverting the sample bottle 31.
[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0031] Please see Figures 1-5This utility model provides a technical solution: a sliding groove 22 is provided inside the connecting frame 21, and the outer wall of the slide seat 23 at the end away from the hollow ring 29 slides in cooperation with the inner wall of the sliding groove 22. A screw 24 is provided inside the sliding groove 22, one end of the screw 24 extends through the slide seat 23 to the outside and is threadedly connected to the slide seat 23. The two ends of the screw 24 are respectively connected to the inner wall of the sliding groove 22 through bearings. An installation box 25 is installed at the upper end of the connecting frame 21, and the top end of the screw 24 extends through the installation box 25 to the inside and is fitted with a worm gear. A worm gear 27 is rotatably connected inside the mounting box 25, and the worm gear 27 meshes with the worm wheel 26. One end of the worm gear 27 extends through the mounting box 25 to the outside and is fitted with a knob 28. The weighing assembly 1 includes a base 11, one side of the outer wall of the base 11 is fixedly connected to one side of the connecting frame 21, and a placement platform 12 is installed on the top of the base 11. A groove is opened inside the top of the placement platform 12, and a weighing plate 13 is installed inside the groove. A weighing sensor 14 is connected to the bottom end of the weighing plate 13. A control panel is mounted on the front, and is electrically connected to the weighing sensor 14 via wires. Through the cooperation of a knob 28, a worm gear 27, and a worm wheel 26, when the operator rotates the knob 28, the worm gear 27 is driven to rotate, which in turn drives the worm wheel 26. Since the worm wheel 26 is fitted onto the outside of the screw 24 near its top, the screw 24 rotates, causing the externally threaded slide block 23 to move upwards or downwards under the sliding limit action of the slide groove 22, thereby adjusting the sample feeding assembly 3. The height is adjusted, thereby adjusting the distance between the crucible placed on the sample addition component 3 and the weighing component 1, and the crucible is placed on the weighing plate 13. The operator can know the weight of the crucible in advance so as to remove the weight of the crucible later. When the coal sample in the sample bottle 31 is poured and falls into the crucible, the weight of the coal sample can be measured because the weighing sensor 14 is connected to the weighing plate 13. Since the control panel is electrically connected to the weighing sensor 14 through the wire, the operator can conveniently obtain the coal sample weight data measured by the weighing sensor 14 through the control panel.
[0032] Specifically, the working principle of this coal sample weighing and adding device is as follows: During use, the round rod 212 is pulled outwards to remove the block 211, thus decoupling the first connecting strip 37 and the second connecting strip 210. Then, the operator removes the sample bottle 31 from the hollow ring 29, opens the cap 32, places the prepared coal sample into the sample bottle 31, tightens the cap 32, shakes the sample bottle 31 to thoroughly mix the coal sample, and then reinserts the sample bottle into the hollow ring 29, causing the first connecting strip 37 to reconnect. After aligning the first square groove on the first ring and the second square groove on the second connecting bar 210, the operator holds the round rod 212 and inserts the block 211 into the first and second square grooves, thus reconnecting the hollow ring 29 and the sample bottle 31. Then, the operator activates the micro servo motor to rotate the hollow ring 29, causing the sample bottle 31 to invert and be placed on the weighing plate 13. The operator can know the weight of the crucible beforehand to facilitate subsequent weight removal. The operator can then easily drive the device by turning the knob 28. The worm gear 27 rotates, driving the worm wheel 26 to rotate. Since the worm wheel 26 is sleeved on the outside of the top of the screw 24, the screw 24 rotates, causing the externally threaded slide block 23 to move upward or downward under the sliding limit action of the slide groove 22, thereby adjusting the height of the sample feeding assembly 3 and the distance between the sample feeding assembly 3 and the crucible placed on the weighing assembly 1. Then, the first slide valve 33 is opened first, followed by the second slide valve 35, so that the bottle cap 32, the first slide valve 33, the conical cylinder 34, the second slide valve 35 and the feed pipe 36 are interconnected. The coal sample in the sample bottle 31 will fall into the weighing crucible from the feed pipe 36 under the action of gravity. Since the weighing sensor 14 is connected to the weighing plate 13, it can measure the weight of the coal sample. Since the control panel is electrically connected to the weighing sensor 14 through wires, the operator can easily obtain the coal sample weight data measured by the weighing sensor 14 through the control panel.
Claims
1. A coal sample weighing and dispensing device, characterized in that, The device includes a weighing component (1), a height adjustment component (2), and a sample dispensing component (3). The height adjustment component (2) is located outside the weighing component (1), and the sample dispensing component (3) is located inside the height adjustment component (2). The weighing component (1) is used for weighing coal samples, the height adjustment component (2) is used for adjusting the height of the sample dispensing component (3), and the sample dispensing component (3) is used for dispensing samples. The sample dispensing component (3) includes a sample bottle (31), and a bottle cap (32) is threaded onto the top of the sample bottle (31). The bottle cap (32) is equipped with a first insert valve (33) at its upper end, a conical cylinder (34) is installed at the upper end of the first insert valve (33), a second insert valve (35) is installed at the upper end of the conical cylinder (34), and a feed pipe (36) is installed at the upper end of the second insert valve (35). The top end of the feed pipe (36) is inclined. The bottle cap (32), the first insert valve (33), the conical cylinder (34), the second insert valve (35) and the feed pipe (36) are interconnected.
2. The coal sample weighing and dispensing device according to claim 1, characterized in that, The sample bottle (31) is equipped with a first connecting strip (37) on both sides of its exterior, and a first square groove is provided inside each of the two first connecting strips (37).
3. The coal sample weighing and dispensing device according to claim 2, characterized in that, The height adjustment component (2) includes a connecting frame (21), and a sliding seat (23) is slidably provided inside the connecting frame (21). A hollow ring (29) is rotatably connected to one end of the sliding seat (23). The sample bottle (31) is placed inside the hollow ring (29). A second connecting strip (210) is installed on both sides of the top surface of the hollow ring (29) near the first connecting strip (37). A second square groove is opened inside the two second connecting strips (210). A block (211) is provided inside the adjacent first square groove and second square groove.
4. The coal sample weighing and dispensing device according to claim 3, characterized in that, The outer wall of the block (211) slides in conjunction with the inner wall of the first and second square grooves. The opposite sides of the two blocks (211) are connected to round rods (212). A cavity is opened inside one end of the slide (23). A micro servo motor is installed inside the cavity. The output end of the micro servo motor is connected to the hollow ring (29) for transmission.
5. A coal sample weighing and dispensing device according to claim 4, characterized in that, The connecting frame (21) has a sliding groove (22) inside. The outer wall of the slide block (23) at the end away from the hollow ring (29) slides and engages with the inner wall of the sliding groove (22). The sliding groove (22) has a screw (24) inside. One end of the screw (24) passes through the slide block (23) and extends to the outside, and is threadedly connected to the slide block (23). The two ends of the screw (24) are respectively connected to the inner wall of the sliding groove (22) through bearings.
6. A coal sample weighing and dispensing device according to claim 5, characterized in that, The upper end of the connecting frame (21) is equipped with a mounting box (25). The top end of the screw (24) extends through the mounting box (25) into the interior and is fitted with a worm gear (26). The interior of the mounting box (25) is rotatably connected to a worm (27). The worm (27) and the worm gear (26) mesh with each other. One end of the worm (27) extends through the mounting box (25) into the exterior and is fitted with a knob (28).
7. A coal sample weighing and dispensing device according to claim 6, characterized in that, The weighing assembly (1) includes a base (11), one side of the outer wall of the base (11) is fixedly connected to one side of the connecting frame (21), a placement platform (12) is installed at the top of the base (11), a groove is provided inside the top of the placement platform (12), a weighing plate (13) is installed inside the groove, and a weighing sensor (14) is connected to the bottom of the weighing plate (13).