Coal caking index tester
By introducing a waterproof pump, nozzle, and motor-driven scraper system into the coal caking index tester, the problem of drum cleaning was solved, ensuring the accuracy of the test results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHANGZHOU AOLIAN TECH CO LTD
- Filing Date
- 2025-04-07
- Publication Date
- 2026-04-17
AI Technical Summary
The existing coal caking index tester does not have a drum cleaning function during operation, which causes residues to mix into the coal sample of the next test, affecting the accuracy of the test results.
A cleaning system with a waterproof pump, nozzle, scraper, and motor drive was designed to clean the inner wall of the drum by rinsing with water and scraping, ensuring the drum is clean after each test.
This method effectively cleans the drum, avoids the influence of residues on test results, and improves the accuracy of the measuring instrument.
Smart Images

Figure CN224137146U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of caking index determination technology, specifically a coal caking index tester. Background Technology
[0002] Coal, as an important energy resource, has a wide and indispensable application in many industrial fields such as power, steel, and chemical industries. The caking property of coal is a crucial process property that has a profound impact on the performance of coal in different industrial processing processes and the quality of the final product. In the coal blending process, by accurately understanding the caking property index of different coals, the proportion of different coal types can be rationally adjusted to obtain a mixed coal type that meets specific process requirements, thereby improving the comprehensive utilization efficiency of coal resources and optimizing product quality.
[0003] Existing coal caking index testers lack a drum cleaning function during operation. After each test, coal samples, coke particles, dust, and other substances remain inside the drum. If not cleaned in time, these residues will mix into the coal samples of the next test, changing the composition and properties of the coal samples and thus affecting the accuracy of the test results. Therefore, we propose a coal caking index tester. Utility Model Content
[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a coal caking index tester with the advantage of an auxiliary cleaning function. This solves the problem that existing coal caking index testers lack a drum cleaning function during operation. After each test, coal samples, coke particles, dust, and other substances remain in the drum. If not cleaned in time, these residues will mix into the coal samples of the next test, changing the composition and properties of the coal samples and thus affecting the accuracy of the test results.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a coal caking index tester, comprising a housing, a waterproof pump fixedly connected to the central axis at the bottom of the housing cavity, a water pump connected to the bottom of the waterproof pump, a corrugated pipe connected to the top of the waterproof pump, a nozzle connected to one side of the corrugated pipe, a scraper fixedly connected to one side of the nozzle, a third motor fixedly connected to the right side of the bottom of the housing, a lead screw fixedly connected to the output end of the third motor, an adjusting rod threaded onto the surface of the lead screw, a fixing rod fixedly connected to one side of the adjusting rod, and a scraper fixedly connected to one side of the fixing rod, a water tank fixedly connected to the bottom of the housing, a return pipe connected to the left side of the water tank, and the top of the return pipe connected to the housing.
[0006] Preferably, a first motor is fixedly connected to the right side of the housing, a horizontal plate is fixedly connected to the output end of the first motor, a second motor is fixedly connected to the left side of the top of the horizontal plate, a gear is fixedly connected to the output end of the second motor, a gear ring is meshed on one side of the gear, and a drum is fixedly connected to the inner cavity of the gear ring.
[0007] Preferably, the top of the horizontal plate is provided with a movable groove, and the inner wall of the movable groove is movably connected to the drum through a first bearing.
[0008] Preferably, a filter plate is inserted into the front of the water tank, and a hollow tube is connected to the bottom of the rear side of the water tank, with a control valve movably connected to one side of the hollow tube.
[0009] Preferably, a connecting shaft is fixedly connected to the left side of the horizontal plate, and the left side of the connecting shaft is movably connected to the housing via a second bearing, and a movable door is movably connected to the front of the housing.
[0010] Preferably, a slide rod is slidably connected to the rear side of the inner cavity of the adjusting rod, and the bottom of the slide rod is fixedly connected to the housing.
[0011] Compared with the prior art, this utility model provides a coal caking index tester, which has the following beneficial effects:
[0012] This invention places the material inside the drum, then starts the second motor, which drives the gear to rotate, which in turn drives the gear ring to rotate, and the gear ring to rotate the drum for adhesion index determination. Next, the first motor starts, which drives the horizontal plate to rotate, causing the drum to flip and facilitating material discharge. Then, the third motor starts, which drives the lead screw to rotate, which in turn drives the adjusting rod to move, which in turn drives the fixing rod to move, which in turn drives the scraper to move, and the scraper to move the nozzle. The nozzle and scraper are then moved into the drum's inner cavity. A waterproof pump is then started, drawing water through a pipe and spraying it through a corrugated pipe and nozzle to rinse the drum's inner cavity. The operation of the second motor also causes the drum to rotate, and the scraper scrapes the inner wall of the drum, facilitating cleaning. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model;
[0014] Figure 2 This is a first-view structural schematic diagram of the present invention in cross-section.
[0015] Figure 3 This is a schematic diagram of the structure of the present invention from a second perspective in cross-sectional view;
[0016] Figure 4 This is a partial structural diagram of the present invention.
[0017] In the diagram: 1. Housing; 2. First motor; 3. Horizontal plate; 4. Second motor; 5. Gear; 6. Gear ring; 7. Rotary drum; 8. Waterproof pump; 9. Bellows; 10. Nozzle; 11. Scraper; 12. Third motor; 13. Lead screw; 14. Adjusting rod; 15. Fixing rod; 16. Water tank; 17. Filter plate; 18. Return pipe; 19. Movable door. Detailed Implementation
[0018] 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.
[0019] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments. Example
[0020] Please see Figure 1 , Figure 2 and Figure 3 As shown, this utility model provides a coal caking index tester, including a housing 1. A waterproof pump 8 is fixedly connected to the central axis at the bottom of the inner cavity of the housing 1. A water pumping pipe is connected to the bottom of the waterproof pump 8, and a corrugated pipe 9 is connected to the top of the waterproof pump 8. A nozzle 10 is connected to one side of the corrugated pipe 9, and a scraper 11 is fixedly connected to one side of the nozzle 10. A third motor 12 is fixedly connected to the right side of the bottom of the housing 1. A lead screw 13 is fixedly connected to the output end of the third motor 12, and an adjustment mechanism is threaded onto the surface of the lead screw 13. A rod 14 is fixedly connected to a fixed rod 15 on one side, and a scraper rod 11 is fixedly connected to one side of the fixed rod 15. A water tank 16 is fixedly connected to the bottom of the housing 1. A return pipe 18 is connected to the left side of the water tank 16. The top of the return pipe 18 is connected to the housing 1. A filter plate 17 is inserted into the front of the water tank 16. A hollow pipe is connected to the bottom of the rear side of the water tank 16, and a control valve is movably connected to one side of the hollow pipe. A sliding rod is slidably connected to the rear side of the inner cavity of the adjusting rod 14, and the bottom of the sliding rod is fixedly connected to the housing 1.
[0021] The specific function of this technical solution is as follows: Starting the third motor 12 drives the lead screw 13 to rotate, which in turn moves the adjusting rod 14. The adjusting rod 14 then moves the fixing rod 15, which in turn moves the scraper 11. The scraper 11 then moves the nozzle 10, causing the nozzle 10 and scraper 11 to move into the inner cavity of the drum 7. The waterproof pump 8 is then started, drawing water through the water pipe and spraying it out through the corrugated pipe 9 and nozzle 10 to rinse the inner cavity of the drum 7. Furthermore, the operation of the second motor 4 causes the drum 7 to rotate, and the scraper 11 scrapes the inner wall of the drum 7, facilitating cleaning. Example
[0022] Based on Embodiment 1, this utility model is as follows: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a first motor 2 is fixedly connected to the right side of the housing 1. A horizontal plate 3 is fixedly connected to the output end of the first motor 2. A second motor 4 is fixedly connected to the top left side of the horizontal plate 3. A gear 5 is fixedly connected to the output end of the second motor 4. A gear ring 6 meshes with one side of the gear 5. A rotating drum 7 is fixedly connected to the inner cavity of the gear ring 6. A movable groove is opened at the top of the horizontal plate 3, and the inner wall of the movable groove is movably connected to the rotating drum 7 through a first bearing. A connecting shaft is fixedly connected to the left side of the horizontal plate 3, and the left side of the connecting shaft is movably connected to the housing 1 through a second bearing. A movable door 19 is movably connected to the front of the housing 1.
[0023] The specific function of this technical solution is as follows: the material is placed in the inner cavity of the rotating drum 7, and then the second motor 4 is started. The second motor 4 drives the gear 5 to rotate, the gear 5 drives the gear ring 6 to rotate, and the gear ring 6 drives the rotating drum 7 to rotate, so as to determine the adhesion index. Then the first motor 2 is started, and the first motor 2 drives the horizontal plate 3 to rotate, thereby causing the rotating drum 7 to flip, so as to facilitate the discharge of the material.
[0024] Working principle: The material is placed inside the drum 7. Then, the second motor 4 is started, which drives the gear 5 to rotate. The gear 5 drives the gear ring 6 to rotate, and the gear ring 6 drives the drum 7 to rotate for adhesion index determination. Then, the first motor 2 is started, which drives the horizontal plate 3 to rotate, thereby causing the drum 7 to flip and facilitate material discharge. Subsequently, the third motor 12 is started, which drives the lead screw 13 to rotate. The lead screw 13 drives the adjusting rod 14 to move, the adjusting rod 14 drives the fixing rod 15 to move, the fixing rod 15 drives the scraper 11 to move, and the scraper 11 drives the nozzle 10 to move, so that the nozzle 10 and the scraper 11 move into the inner cavity of the drum 7. The waterproof pump 8 is started, and water is drawn out through the water pipe. Then, the water is sprayed out through the corrugated pipe 9 and the nozzle 10 to rinse the inner cavity of the drum 7. The operation of the second motor 4 causes the drum 7 to rotate, and the scraper 11 scrapes the inner wall of the drum 7 for easy cleaning.
[0025] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values (e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.
[0026] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.
[0027] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the essence and scope of the technical solutions of this utility model.
Claims
1. A coal caking index tester comprising a housing (1), characterised in that: A waterproof pump (8) is fixedly connected to the central axis at the bottom of the inner cavity of the housing (1). A water pump (8) is connected to the bottom of the waterproof pump (8) and a corrugated pipe (9) is connected to the top of the waterproof pump (8). A nozzle (10) is connected to one side of the corrugated pipe (9). A scraper (11) is fixedly connected to one side of the nozzle (10). A third motor (12) is fixedly connected to the right side of the bottom of the housing (1). A lead screw (13) is fixedly connected to the output end of the third motor (12). An adjusting rod (14) is threaded onto the surface of the lead screw (13). A fixing rod (15) is fixedly connected to one side of the adjusting rod (14). One side of the fixing rod (15) is fixedly connected to the scraper (11). A water tank (16) is fixedly connected to the bottom of the housing (1). A return pipe (18) is connected to the left side of the water tank (16). The top of the return pipe (18) is connected to the housing (1).
2. A coal caking index tester as claimed in claim 1, wherein: A first motor (2) is fixedly connected to the right side of the housing (1). A horizontal plate (3) is fixedly connected to the output end of the first motor (2). A second motor (4) is fixedly connected to the left side of the top of the horizontal plate (3). A gear (5) is fixedly connected to the output end of the second motor (4). A gear ring (6) meshes with one side of the gear (5). A rotating drum (7) is fixedly connected to the inner cavity of the gear ring (6).
3. A coal caking index tester as claimed in claim 2, wherein: The top of the horizontal plate (3) is provided with a movable groove, and the inner wall of the movable groove is movably connected to the drum (7) through the first bearing.
4. The apparatus for determining the caking index of coal as claimed in claim 1, wherein: A filter plate (17) is inserted into the front of the water tank (16), and a hollow tube is connected to the bottom of the rear side of the water tank (16), with a control valve movably connected to one side of the hollow tube.
5. The apparatus for determining the caking index of coal as claimed in claim 2 wherein: A connecting shaft is fixedly connected to the left side of the horizontal plate (3), and the left side of the connecting shaft is movably connected to the housing (1) through a second bearing. A movable door (19) is movably connected to the front of the housing (1).
6. The apparatus for determining the caking index of coal as claimed in claim 1, wherein: The rear side of the inner cavity of the adjusting rod (14) is slidably connected to a slide rod, and the bottom of the slide rod is fixedly connected to the housing (1).