Coal mine moisture detection device
By designing a coal mine moisture detection device with a rotating barrel and stirring blades, the problem of insufficient contact area between the sample and hot air was solved, achieving rapid and uniform heating and efficient detection, thus ensuring the stability of sample properties and the accuracy of detection results.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-04-07
AI Technical Summary
In existing coal mine moisture detection devices, the contact area between the coal sample and the hot air is limited, which slows down the evaporation rate of moisture, reduces the drying rate, causes uneven heating of some samples, poses a risk of damage, and is not conducive to maintaining the original properties of the sample.
A coal mine moisture detection device was designed, comprising a detection tank and a rotating barrel. Stirring blades are evenly connected to the barrel. By rotating the barrel and cooperating with the stirring blades, the contact area between the sample and hot air is increased, and the sample is evenly heated by a heating rod, ensuring that the sample tumbles and disperses during the drying process to prevent agglomeration.
It increases the rate of water evaporation, ensures uniform heating, avoids sample damage, improves the accuracy and efficiency of detection, prevents cross-contamination, and extends the service life of the device.
Smart Images
Figure CN224095610U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to coal mine detection technical field, especially relate to a coal mine moisture detection device. BACKGROUND
[0002] The carbon moisture content detection is a common coal detection project, is used for detecting the coal specific wet condition, needs taking a small amount of coal sample and putting into the specific device in the detection, through the detection coal moisture content in sample to determine, generally through the moisture in the drying oven coal, compares the weight of coal before and after drying to calculate the weight of coal volatile water.
[0003] The existing coal mine moisture detection device, generally when detecting, the area of coal sample and hot air contact is limited, slows down the water evaporation speed, reduces the drying speed, part of sample is in high area for a long time, sample heating is uneven, has the risk of damage, is not favorable to keeping the original nature of sample.
[0004] Therefore, it is necessary to provide a coal mine moisture detection device to solve the above problems. UTILITY MODEL CONTENT
[0005] The utility model discloses a coal mine moisture detection device to solve the area of coal sample and hot air contact is limited when detecting, slows down the water evaporation speed, reduces the drying speed, part of sample is in high area for a long time, sample heating is uneven, has the risk of damage, is not favorable to keeping the original nature of sample.
[0006] To realize the above-mentioned purpose, the utility model provides the following technical scheme: a coal mine moisture detection device, including detection shell, the detection shell middle part is equipped with the detection groove, and the detection groove inside rotation is provided with the barrel, the barrel middle part rotation is provided with the rotary rod, and the rotary rod periphery evenly fixed connection has a plurality of stirring vane, the detection groove side wall evenly fixed connection has four heating rods;
[0007] The barrel outer wall bottom is fixedly connected with the first shaft sleeve, the first shaft sleeve both sides are equipped with the clamping groove, the detection groove bottom rotation is connected with the second shaft sleeve, and the second shaft sleeve top both sides are fixedly connected with the clamping block, the clamping block is inserted in the corresponding clamping groove inside, the second shaft sleeve inside rotation is connected with the connecting rod, and the connecting rod inside is equipped with the spline groove, and the rotary rod bottom end is fixedly connected with the spline, and the spline is inserted in the spline groove inside.
[0008] Preferably, the detection shell periphery bottom is fixedly connected with a motor, the motor rotating shaft is fixedly connected with a rotating shaft, the detection shell bottom is provided with a first bevel gear, a second bevel gear and a third bevel gear, the rotating shaft end portion penetrates through the detection shell and is fixedly connected with the first bevel gear, the second bevel gear is fixedly connected with a connecting rod, the third bevel gear is fixedly connected with a second shaft sleeve, the connecting rod is rotatably connected with the third bevel gear, and the second bevel gear and the third bevel gear are meshingly connected with the first bevel gear.
[0009] Preferably, the detection groove inner bottom surface is fixedly connected with an annular bearing seat, and the annular bearing seat is in movable contact with the barrel body bottom.
[0010] Preferably, the barrel body periphery is uniformly and annularly provided with a plurality of through holes.
[0011] Preferably, the detection shell top side is rotatably connected with a cover body, and the cover body middle portion is provided with a breathable net.
[0012] Preferably, the barrel body inner wall top is fixedly connected with a limiting rod, and the limiting rod is rotatably connected with a rotating rod.
[0013] The technical effects and advantages of the present application are as follows:
[0014] 1. In the present application, the rotating barrel body makes the coal sample continuously tumble during the drying process, increases the contact area of the sample and hot air, and the counter-rotating stirring blades further scatter the sample, prevent coal particle agglomeration, make heat transfer more sufficient, accelerate the evaporation speed of moisture, and improve the drying efficiency.
[0015] 2. The cooperation of the stirring blades and the barrel body can make the coal sample continuously move in the barrel body, ensure the uniformity of sample heating, avoid the overheating damage of part of the sample in the high temperature area, is beneficial to maintaining the original properties of the coal sample, and improves the accuracy of moisture detection.
[0016] 3. In the present application, the barrel body can be disassembled, which is convenient for the staff to clean the barrel body thoroughly, ensures that there is no impurity residue in the barrel body, and when batch detection is carried out, multiple barrel bodies containing different coal samples can be prepared, when one coal sample detection is completed, the barrel body is disassembled and replaced, and the next detection can be started, which greatly improves the detection efficiency.
[0017] 4. The barrel body shell is disassembled, which is convenient for cleaning the barrel body and the stirring blades, avoids cross contamination between different samples, ensures the accuracy of the detection result, prevents coal impurities from accumulating in the device, reduces the problems of overheating, short circuit and the like caused by impurity accumulation, and prolongs the service life of the whole device. BRIEF DESCRIPTION OF DRAWINGS
[0018] Figure 1It is a structure schematic view of the utility model.
[0019] Figure 2 It is a section schematic view of the utility model.
[0020] Figure 3 It is a section explosion schematic view of the utility model.
[0021] Figure 4 It is a structure schematic view of the utility model Figure 3 It is an enlarged schematic view of A in the middle.
[0022] In the figure: 1, detection shell; 11, detection groove; 12, cover; 13, breathable net; 14, annular bearing seat; 15, heating rod;
[0023] 2, barrel body; 21, rotating rod; 22, stirring blade; 23, spline; 24, connecting rod; 25, spline groove; 26, limiting rod; 27, through hole;
[0024] 3, first shaft sleeve; 31, clamping groove; 32, clamping block; 33, second shaft sleeve;
[0025] 4, motor; 41, rotating shaft; 42, first bevel gear; 43, second bevel gear; 44, third bevel gear. DETAILED DESCRIPTION
[0026] In order to make the purpose, technical scheme and advantages of the utility model more clear, the technical scheme in the utility model will be described clearly and completely below in combination with the drawings in the utility model. Obviously, the described embodiments are a part of the embodiments of the utility model, rather than all the embodiments, and they should not be understood as the limitation of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the protection scope of the utility model. In the description of the utility model, it is understood that the used terms are only for the purpose of description, and should not be understood as indicating or implying relative importance.
[0027] The utility model discloses to solve the problem that the area of contact between coal sample and hot air is limited when detecting, the speed of moisture evaporation is slowed down, the drying speed is reduced, part of sample is in high division area for a long time, sample heating is uneven, there is the risk of damage, and it is not conducive to keeping the original nature of sample. Figures 1-4The device for detecting coal moisture content includes a detection shell 1, a detection groove 11 in the middle of the shell 1, a barrel 2 rotatably mounted inside the detection groove 11, a rotating rod 21 rotatably mounted in the middle of the barrel 2, and multiple stirring blades 22 uniformly fixedly connected to the outer circumference of the rotating rod 21. Four heating rods 15 are uniformly fixedly connected to the side wall of the detection groove 11. When testing the coal, the coal sample is weighed and placed inside the barrel 2. The barrel 2 is then installed inside the detection groove 11. The heating rods 15 are turned on to heat the detection groove 11. Simultaneously, the barrel 2 and the rotating rod 21 are rotated. The rotation of the rotating rod 21 drives the stirring blades 22 to rotate, which in turn stirs the coal. The barrel 2 and the rotating rod 21 rotate in opposite directions, breaking up the coal sample and ensuring that the coal sample is in full contact with the hot air.
[0028] The rotating barrel 2 causes the coal sample to tumble continuously during the drying process, increasing the contact area between the sample and the hot air. The counter-rotating stirring blades 22 further disperse the sample, preventing coal particles from agglomerating, allowing for more complete heat transfer, accelerating the evaporation of moisture, and improving drying efficiency.
[0029] The combination of the stirring blade 22 and the barrel 2 allows the coal sample to move continuously within the barrel 2, ensuring the uniformity of sample heating and preventing some samples from being damaged by overheating due to prolonged exposure to high temperatures. This helps maintain the original properties of the coal sample and improves the accuracy of moisture detection.
[0030] Furthermore, a first bushing 3 is fixedly connected to the bottom surface of the outer wall of the barrel 2. The first bushing 3 has slots 31 on both sides. A second bushing 33 is rotatably connected to the bottom surface of the detection groove 11. A locking block 32 is fixedly connected to both sides of the top surface of the second bushing 33. The locking block 32 is inserted into the corresponding slot 31. A connecting rod 24 is rotatably connected inside the second bushing 33. A spline groove 25 is opened inside the connecting rod 24. A spline 23 is fixedly connected to the bottom end of the rotating rod 21. The spline 23 is inserted into the spline groove 25. When installing the barrel 2, align the slot 31 on the first bushing 3 with the locking block 32, insert the locking block 32 into the slot 31 to complete the installation of the first bushing 3 and the second bushing 33. At the same time, insert the spline 23 at the bottom of the rotating rod 21 into the spline groove 25 on the connecting rod 24 to install the connecting rod 24 and the rotating rod 21. When removing, simply lift the barrel 2 upwards to remove it.
[0031] It should be noted that lifting handles can be installed on both sides of the barrel 2 to facilitate the installation or removal of the barrel 2 by the staff. The handles are existing technology and are not shown in the figure, so they will not be described in detail here.
[0032] The detachable structure of the barrel body 2 facilitates the staff to clean the barrel body 2 thoroughly, ensures that no impurities are left in the barrel body 2, and when batch detection is performed, a plurality of barrel bodies 2 containing different coal samples can be prepared, when detection of one coal sample is completed, the barrel body 2 is removed and replaced, and the next detection can be started, so that the detection efficiency is greatly improved.
[0033] The detachable structure of the barrel body 2 facilitates the staff to clean the barrel body 2 thoroughly, ensures that no impurities are left in the barrel body 2, and when batch detection is performed, a plurality of barrel bodies 2 containing different coal samples can be prepared, when detection of one coal sample is completed, the barrel body 2 is removed and replaced, and the next detection can be started, so that the detection efficiency is greatly improved.
[0034] In the utility model, the motor 4 is fixedly connected with the rotating shaft 41 at the rotating shaft, the first bevel gear 42, the second bevel gear 43 and the third bevel gear 44 are arranged at the bottom of the detection shell 1, the rotating shaft 41 is fixedly connected with the first bevel gear 42 through the detection shell 1, the second bevel gear 43 is fixedly connected with the connecting rod 24, the third bevel gear 44 is fixedly connected with the second shaft sleeve 33, the connecting rod 24 is rotatably connected with the third bevel gear 44, the second bevel gear 43 and the third bevel gear 44 are rotatably connected with the first bevel gear 42;When in use, the motor 4 is started, the motor 4 drives the rotating shaft 41 to rotate, the rotating shaft 41 drives the first bevel gear 42 to rotate, the first bevel gear 42 drives the second bevel gear 43 and the third bevel gear 44 to rotate, the second bevel gear 43 drives the connecting rod 24 to rotate, the connecting rod 24 drives the rotating rod 21 to rotate, the rotating rod 21 drives the stirring blade 22 to rotate, the third bevel gear 44 drives the second shaft sleeve 33 to rotate, the second shaft sleeve 33 drives the first shaft sleeve 3 to rotate, and the first shaft sleeve 3 drives the barrel body 2 to rotate, through the cooperation of the components, the barrel body 2 and the rotating rod 21 can rotate in opposite directions, and the coal heating is more uniform.
[0035] It should be noted that the annular bearing seat 14 is fixedly connected to the inner bottom surface of the detection groove 11 and movably contacts the bottom of the barrel body 2.
[0036] In the utility model, a plurality of through holes 27 are uniformly and continuously arranged on the outer periphery of the barrel body 2 in a ring shape;The through holes 27 are arranged to enable the barrel body 2 to communicate with the hot air in the detection groove 11, the hot air can directly pass through the through holes 27 to contact the coal, and the steam on the coal can be removed, so that the humid hot air in the barrel body 2 is not retained.
[0037] It should be noted that the barrel body 2 with different sizes of through holes 27 can be prepared for different types or states of coal samples, and the adaptability is good.
[0038] The utility model discloses a detection shell 1 top side rotatory connection has the cover 12, and the cover 12 middle part is provided with the breathable net 13, and when heating to the coal mine, the cover 12 is closed, and the moisture flows outward from the breathable net 13.
[0039] Need to explain, the bucket body 2 inner wall top fixed connection has the limit rod 26, and the limit rod 26 is rotatory connection with the rotating rod 21, and the limit rod 26 plays the limiting effect, and ensures the rotating rod 21 normal work.
Claims
1. A coal mine moisture detection device, comprising a detection shell (1), characterized in that: The detection shell (1) has a detection groove (11) in the middle, and a barrel (2) is rotatably arranged inside the detection groove (11). A rotating rod (21) is rotatably arranged in the middle of the barrel (2). Multiple stirring blades (22) are evenly fixedly connected to the outer periphery of the rotating rod (21). Four heating rods (15) are evenly fixedly connected to the side wall of the detection groove (11). The bottom surface of the outer wall of the barrel (2) is fixedly connected to a first bushing (3), and slots (31) are provided on both sides of the first bushing (3). The bottom surface of the detection groove (11) is rotatably connected to a second bushing (33), and a locking block (32) is fixedly connected to both sides of the top surface of the second bushing (33). The locking block (32) is inserted into the corresponding slot (31). A connecting rod (24) is rotatably connected inside the second bushing (33), and a spline groove (25) is provided inside the connecting rod (24). A spline (23) is fixedly connected to the bottom end of the rotating rod (21), and the spline (23) is inserted into the spline groove (25).
2. The coal mine moisture detection device according to claim 1, characterized in that: A motor (4) is fixedly connected to the bottom of the outer periphery of the detection shell (1). A rotating shaft (41) is fixedly connected to the shaft of the motor (4). A first bevel gear (42), a second bevel gear (43), and a third bevel gear (44) are provided at the bottom of the detection shell (1). The end of the rotating shaft (41) passes through the detection shell (1) and is fixedly connected to the first bevel gear (42). The second bevel gear (43) is fixedly connected to the connecting rod (24). The third bevel gear (44) is fixedly connected to the second bushing (33). The connecting rod (24) is rotatably connected to the third bevel gear (44). The second bevel gear (43) and the third bevel gear (44) are both meshed with the first bevel gear (42).
3. The coal mine moisture detection device according to claim 1, characterized in that: The bottom surface of the detection groove (11) is fixedly connected to an annular bearing seat (14), and the annular bearing seat (14) is in contact with the bottom of the barrel (2).
4. The coal mine moisture detection device according to claim 1, characterized in that: The barrel body (2) has multiple through holes (27) evenly distributed in a ring around its outer periphery.
5. A coal mine moisture detection device according to claim 1, characterized in that: The top side of the detection shell (1) is rotatably connected to a cover (12), and a breathable mesh (13) is provided in the middle of the cover (12).
6. The coal mine moisture detection device according to claim 1, characterized in that: A limiting rod (26) is fixedly connected to the top of the inner wall of the barrel (2), and the limiting rod (26) is rotatably connected to the rotating rod (21).