Coal mine filling and stirring testing machine

Abstract

The utility model provides a coal mine filling and stirring testing machine which comprises a test bed, a stirring tank, a stirring assembly and a striker plate, the stirring tank is rotatably connected to the test bed, a feeding and discharging opening is formed in the stirring tank, and the striker plate used for blocking the feeding and discharging opening is rotatably connected into the stirring tank. The stirring assembly is rotationally connected to the stirring tank, and a main shaft of the stirring assembly extends in the horizontal direction; the stirring tank has a feeding stirring state that the feeding and discharging port is in the top and a discharging state that the feeding and discharging port is in the bottom. According to the coal mine filling and stirring testing machine provided by the utility model, the stirring assembly is used for carrying out horizontal mechanical stirring, so that filling slurry can be fully stirred in the stirring tank, the stirring efficiency is improved, the stirring tank adopts a rotatable structure, and raw materials are put in and the filling slurry is discharged through the same feeding and discharging opening; the feeding and discharging process is simplified, the operation efficiency is improved, the uniformity of filling slurry is further improved, and the accuracy of subsequent test results is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal mine filling, and more specifically relates to a coal mine filling stirring testing machine. Background Art

[0002] Since coal mining creates goafs after mining, backfilling of goafs in coal mines has become increasingly common. Currently, coal mine laboratories primarily rely on simple handheld mechanical stirring or manual mixing during testing. Due to the volume requirements of the test, a mixing tank that is too small not only limits the mixing volume but also easily causes splashing. A tank that is too large and uses a vertical stirring shaft can cause the filling slurry to accumulate at the bottom of the tank, resulting in uneven mixing, which can affect the accuracy of test results and inconvenience the loading and unloading of materials. Utility Model Content

[0003] The purpose of the utility model is to provide a coal mine filling and stirring testing machine, which is convenient for material feeding and discharging operations, can evenly stir the filling slurry, and helps to improve the test efficiency.

[0004] To achieve the above-mentioned object, the technical solution adopted by the present invention is as follows: providing a coal mine filling and mixing test machine, comprising a test bench, a mixing tank, a mixing assembly, and a material baffle plate, wherein the mixing tank is rotatably connected to the test bench, the mixing tank is provided with an inlet and outlet, a material baffle plate is rotatably connected inside the mixing tank for blocking the inlet and outlet, the mixing assembly is rotatably connected to the mixing tank, and the main axis of the mixing assembly extends in the horizontal direction;

[0005] Among them, the mixing tank has a feeding and stirring state with the inlet and outlet at the top and a discharging state with the inlet and outlet at the bottom; when the mixing tank is in the feeding and stirring state, the baffle plate can swing vertically to receive the material entering from the inlet and outlet; when the mixing tank is in the discharging state, the baffle plate can swing vertically to unload the material through the inlet and outlet.

[0006] In one possible implementation, the stirring assembly includes a stirring shaft and several stirring blades, which are connected to the outer periphery of the stirring shaft and are arranged at intervals along the axial direction of the stirring shaft. The test bench is also provided with a rotating drive connected to the stirring shaft, which is used to drive the stirring shaft to rotate.

[0007] In one possible implementation, the stirring blade includes a middle blade and two end blades respectively arranged near the two ends of the stirring shaft. The extension directions of the middle blade and the end blades are arranged at an angle. The outer end of the middle blade has a material gathering plate extending along the axial direction of the stirring shaft. The width of the material gathering plate gradually decreases from the middle to the two ends, and the thickness of the material gathering plate gradually decreases from the middle to the two ends, and is used to disperse the material to the two ends of the stirring shaft.

[0008] In some embodiments, the outer end of the end blade has a bulk plate extending axially along the stirring shaft, and the width and thickness of the bulk plate gradually increase at the end away from the middle blade.

[0009] In a possible implementation, the coal mine filling and mixing test machine further includes a controller, which is electrically connected to the rotating drive component, and is configured to send start / stop instructions or forward / reverse rotation instructions to the rotating drive component.

[0010] In one possible implementation, the stirring tank is rotatably connected to the test bench through a rotating shaft and a rotating sleeve, the stirring assembly is arranged through the rotating sleeve and rotates with the rotating sleeve, the test bench is provided with a supporting seat for supporting the rotating shaft or the rotating sleeve, and a rotating motor is provided at the outer end of the rotating shaft.

[0011] In some embodiments, a limiting baffle is provided at one end of the mixing tank, and the limiting baffle can abut against the supporting seat to limit the rotation angle of the mixing tank.

[0012] In one possible implementation, an inlet and outlet hopper connected to the inlet and outlet is provided in the mixing tank, the opening of the inlet and outlet hopper at one end away from the inlet and outlet gradually becomes larger, and a baffle is located below the inlet and outlet hopper.

[0013] In some embodiments, a plurality of distribution barrels are provided in the inlet and outlet, which extend radially along the stirring component and are spaced apart axially along the stirring component. The ends of the distribution barrels are connected to the ends of the inlet and outlet hoppers and are used to disperse the materials in the inlet and outlet hoppers one by one into a plurality of test molds when unloading the materials.

[0014] In some embodiments, both ends of the baffle plate are rotatably connected to the mixing tank via horizontally extending rotating shafts, wherein one of the rotating shafts passes through the side wall of the mixing tank and is connected to a rotating handle.

[0015] The scheme shown in the embodiment of the present application is compared with the existing technology. The coal mine filling and mixing test machine provided in the embodiment of the present application utilizes a horizontally arranged stirring assembly to perform horizontal mechanical stirring, so that the filling slurry can be fully stirred in the stirring tank, avoiding splashing of the filling slurry in the stirring tank, and improving the stirring efficiency. The stirring tank adopts a rotatable structure, and the raw materials are placed and the filling slurry is discharged through the same inlet and outlet, which simplifies the feeding and discharging process, improves operating efficiency, and can further improve the uniformity of the filling slurry, thereby ensuring the accuracy of subsequent test results. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 1 A schematic diagram of a partial cross-section of the main structure of the coal filling and mixing test machine provided by an embodiment of the present utility model when in a mixing state;

[0018] Figure 2 For the embodiment of the utility model Figure 1 Schematic diagram of the cross-sectional structure of AA;

[0019] Figure 3 This is a schematic diagram of the main view and partial cross-section of the coal mine filling and mixing testing machine provided by an embodiment of the utility model when it is in the discharging state.

[0020] Among them, the reference numerals in the figures are:

[0021] 1. Test bench; 2. Mixing tank; 21. Limit baffle; 22. Rotating handle; 3. Mixing assembly; 31. Mixing shaft; 32. Middle blade; 33. End blade; 34. Material gathering plate; 35. Material dispersing plate; 36. Rotating drive member; 4. Material baffle; 5. Distributing barrel; 61. Rotating shaft; 62. Rotating sleeve; 63. Support seat; 64. Rotating motor; 7. Inlet and outlet hopper; 8. Test mold. DETAILED DESCRIPTION

[0022] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0023] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or indirectly on the other element. It should be understood that the terms "length", "width", "upper", "lower", "front", "back", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. The terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "several" means two or more, unless otherwise clearly and specifically defined.

[0024] Please also refer to Figures 1 to 3 The coal filling and mixing test machine provided by the present invention is now described. The coal filling and mixing test machine includes a test bench 1, a mixing tank 2, a mixing assembly 3, and a material baffle 4. The mixing tank 2 is rotatably connected to the test bench 1. The mixing tank 2 is provided with an inlet and outlet. The material baffle 4 is rotatably connected to the mixing tank 2 for blocking the inlet and outlet. The mixing assembly 3 is rotatably connected to the mixing tank 2, and the main axis of the mixing assembly 3 extends in the horizontal direction.

[0025] Among them, the mixing tank 2 has a feeding and stirring state with the inlet and outlet at the top and a discharging state with the inlet and outlet at the bottom; when the mixing tank 2 is in the feeding and stirring state, the baffle plate 4 can swing vertically to receive the material entering the inlet and outlet; when the mixing tank 2 is in the discharging state, the baffle plate 4 can swing vertically to unload the material through the inlet and outlet.

[0026] Compared with the prior art, the coal mine filling and mixing test machine provided in this embodiment uses a horizontally arranged stirring assembly 3 to perform horizontal mechanical stirring, so that the filling slurry can be fully stirred in the stirring tank 2, avoiding splashing of the filling slurry in the stirring tank 2, and improving the stirring efficiency. The stirring tank 2 adopts a rotatable structure, and the raw materials are placed and the filling slurry is discharged through the same inlet and outlet, which simplifies the feeding and discharging process, improves the operating efficiency, and can further improve the uniformity of the filling slurry, thereby ensuring the accuracy of subsequent test results.

[0027] In this embodiment, the inlet and outlet are arranged on the peripheral wall of the stirring tank 2. When feeding is required, the stirring tank 2 is rotated to a position where the inlet and outlet are located at the top of the stirring tank 2, and then the baffle plate 4 is opened to feed the raw materials into the stirring tank 2 from the inlet and outlet. Afterwards, the baffle plate 4 is closed, and the stirring assembly 3 stirs the raw materials so that the raw materials form a filling slurry. After the stirring is completed, the stirring tank 2 is rotated so that the inlet and outlet are located at the bottom of the stirring tank 2, and the baffle plate 4 is opened to discharge the filling slurry from the inlet and outlet for sample preparation. Therefore, when the stirring tank 2 is in a feeding or stirring state, the inlet and outlet are located at the top of the stirring tank 2. Specifically, when the stirring tank 2 is in a feeding state, the baffle plate 4 is arranged vertically to open the inlet and outlet, and when it is in a stirring state, the baffle plate 4 is arranged horizontally to block the inlet and outlet. When the stirring tank 2 is in a discharging state, the inlet and outlet are located at the bottom of the stirring tank 2, and the baffle plate 4 is arranged vertically to open the inlet and outlet.

[0028] By using the above-mentioned device, the raw materials can be fully stirred to obtain the filling slurry, which not only ensures the uniformity of the filling slurry, but also effectively prevents the filling slurry from splashing outside the stirring tank 2, which not only saves the consumption of raw materials, but also ensures the quality of subsequent sample preparation and improves the accuracy of the test.

[0029] In one possible implementation, please also refer to Figures 1 to 3 The stirring assembly 3 includes a stirring shaft 31 and a plurality of stirring blades. The stirring blades are connected to the outer periphery of the stirring shaft 31 and are arranged at intervals along the axial direction of the stirring shaft 31. The test bench 1 is also provided with a rotating drive member 36 connected to the stirring shaft 31. The rotating drive member 36 is used to drive the stirring shaft 31 to rotate.

[0030] In this embodiment, the stirring component 3 adopts the form of a combination of a stirring shaft 31 and a stirring blade. The rotating driving member 36 drives the stirring shaft 31 to rotate circumferentially, and then the stirring blades fully disturb the raw materials, so that the raw materials are fully mixed to form a filling slurry to meet the subsequent sample preparation requirements.

[0031] In one possible implementation, please also refer to Figures 1 to 3 The stirring blades include a middle blade 32 and two end blades 33 respectively arranged near the two ends of the stirring shaft 31. The extension directions of the middle blade 32 and the end blades 33 are arranged at an angle. The outer end of the middle blade 32 has a material gathering plate 34 extending along the axial direction of the stirring shaft 31. The width of the material gathering plate 34 gradually decreases from the middle to the two ends, and the thickness of the material gathering plate 34 gradually decreases from the middle to the two ends, and is used to disperse the material to the two ends of the stirring shaft 31.

[0032] In this embodiment, the main shaft of the mixing tank 2 extends horizontally and has a certain extension length. The mixing blades are a combination of a central blade 32 and an end blade 33. The end blades 33 are respectively located near the ends of the mixing shaft 31, so that materials at different axial positions of the mixing shaft 31 can be effectively stirred.

[0033] On this basis, the end blades 33 and the middle blades 32 are arranged in intervals in the circumferential direction, effectively covering the interior space of the mixing tank 2. The material-collecting plates 34 outside the middle blades 32 have gradually decreasing thickness and width at both ends, effectively dispersing the material toward the ends of the mixing tank 2 and moving it toward the ends of the mixing shaft 31, creating a good disturbance effect on the material and improving the uniformity of the material mixing.

[0034] In some embodiments, please refer to Figures 1 to 3 The outer ends of the end blades 33 are provided with bulking plates 35 extending axially along the agitator shaft 31. The width and thickness of the bulking plates 35 gradually increase at the end away from the middle blades 32. These bulking plates 35 push the material toward the middle bulking plates 35, creating a disturbance opposite to that of the middle blades 32. This in turn causes the material to move in both directions axially within the agitator tank 2, further enhancing the disturbance and improving the uniformity of the filling slurry.

[0035] In one possible implementation, please also refer to Figures 1 to 3 The coal mine filling and mixing test machine further includes a controller, which is electrically connected to the rotary drive member 36 , and is used to send start / stop instructions or forward / reverse rotation instructions to the rotary drive member 36 .

[0036] In this embodiment, the controller is used to output instructions to the rotating drive member 36. By sending control instructions to the rotating drive member 36, the controller realizes various stirring modes such as forward rotation, reverse rotation and inching of the stirring component 3, meets the stirring requirements of the filling slurry, and improves the convenience and flexibility of operation.

[0037] In one possible implementation, please also refer to Figures 1 to 3 The stirring tank 2 is rotatably connected to the test bench 1 through a rotating shaft 61 and a rotating sleeve 62. The stirring assembly 3 is arranged through the rotating sleeve 62 and rotates with the rotating sleeve 62. A supporting seat 63 for supporting the rotating shaft 61 or the rotating shaft 61 sleeve is provided on the test bench 1. A rotating motor 64 is provided at the outer end of the rotating shaft 61.

[0038] In this embodiment, the mixing tank 2 is rotatably connected to the test bench 1 via a rotating sleeve 62 and a rotating shaft 61, allowing for convenient circumferential rotation of the mixing tank 2, thereby positioning the inlet and outlet ports at the top or bottom, respectively, to meet the feeding and discharging requirements of the mixing tank 2. The rotary motor 64 can drive the rotating shaft 61 and the mixing tank 2 to rotate, positioning the inlet and outlet ports at the desired feeding or discharging positions, further improving operational convenience.

[0039] In some embodiments, please refer to Figures 1 to 3 A limiting baffle 21 is provided at one end of the mixing tank 2 , and the limiting baffle 21 can abut against the supporting seat 63 to limit the rotation angle of the mixing tank 2 .

[0040] In this embodiment, a limit baffle 21 is provided at one end of the mixing tank 2 to limit the rotation angle of the mixing tank 2. The limit baffle 21 can contact the front side wall or the rear side wall of the support seat 63, thereby preventing the inlet and outlet ports from misaligning with the test mold 8 when the mixing tank 2 rotates too much, thereby improving the convenience of switching between the feeding and stirring state and the discharging state.

[0041] In one possible implementation, please also refer to Figures 1 to 3 A feed hopper 7 connected to the feed inlet and outlet is provided in the mixing tank 2 . The opening of the feed hopper 7 at one end away from the feed inlet and outlet gradually becomes larger, and the baffle plate 4 is located below the feed hopper 7 .

[0042] In this embodiment, by setting the inlet and outlet hoppers 7 at the inlet and outlet, the filling slurry after stirring can be effectively gathered and collected, which facilitates the smooth discharge of the filling slurry from the inlet and outlet, avoids the filling slurry from gathering at the end position of the stirring tank 2, avoids the waste of the filling slurry, improves the utilization rate of the filling slurry, avoids the waste of materials, and ensures the accuracy of the later test results.

[0043] In some embodiments, please refer to Figures 1 to 3 A plurality of distribution barrels 5 are provided in the inlet and outlet, which extend radially along the stirring component 3 and are arranged at intervals along the axial direction of the stirring component 3. The ends of the distribution barrels 5 are connected to the ends of the inlet and outlet hoppers 7, and are used to disperse the materials in the inlet and outlet hoppers 7 into a plurality of test molds 8 one by one when unloading the materials.

[0044] In this embodiment, in order to prepare multiple samples at once, multiple diverter barrels are provided at the inlet and outlet. Multiple diverter barrels 5 correspond one-to-one with multiple test molds 8 below, allowing the material to be divided into multiple streams and simultaneously enter the multiple test molds 8, thereby achieving batch preparation of samples and improving preparation efficiency.

[0045] In some embodiments, please refer to Figures 1 to 3The two ends of the baffle plate 4 are rotatably connected to the mixing tank 2 through horizontally extending rotating shafts, one of which is set through the side wall of the mixing tank 2 and is connected to a rotating handle 22.

[0046] In this embodiment, the baffle plate 4 is driven to rotate by the rotating handle 22, which can block or open the inlet and outlet, meeting the needs of opening and blocking the inlet and outlet during the feeding, discharging and stirring processes, and improving the convenience of operation.

[0047] The above-mentioned coal mine filling and mixing test machine uses a horizontally arranged mixing component 3 to perform horizontal mechanical mixing, so that the filling slurry can be fully stirred in the mixing tank 2, avoiding splashing of the filling slurry in the mixing tank 2, and improving the mixing efficiency. The mixing tank 2 adopts a rotatable structure, and the raw materials are placed and the filling slurry is discharged through the same inlet and outlet, which simplifies the feeding and discharging process, improves the operating efficiency, and can further improve the uniformity of the filling slurry, thereby ensuring the accuracy of subsequent test results.

[0048] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. Coal mine filling and mixing test machine, characterized in that, The invention comprises a test bench (1), a stirring tank (2), a stirring assembly (3) and a baffle plate (4), wherein the stirring tank (2) is rotatably connected to the test bench (1), the stirring tank (2) is provided with an inlet and outlet, the stirring tank (2) is rotatably connected to a baffle plate (4) for blocking the inlet and outlet, the stirring assembly (3) is rotatably connected to the stirring tank (2), and the main axis of the stirring assembly (3) extends in the horizontal direction; The stirring tank (2) has a feeding and stirring state in which the inlet and outlet are at the top, and a discharging state in which the inlet and outlet are at the bottom; when the stirring tank (2) is in the feeding and stirring state, the baffle plate (4) can swing vertically to receive the material entering the inlet and outlet; when the stirring tank (2) is in the discharging state, the baffle plate (4) can swing vertically to discharge the material through the inlet and outlet.

2. The coal mine filling and mixing testing machine according to claim 1, characterized in that: The stirring assembly (3) comprises a stirring shaft (31) and a plurality of stirring blades, wherein the stirring blades are connected to the outer periphery of the stirring shaft (31) and are arranged at intervals along the axial direction of the stirring shaft (31). The test bench (1) is also provided with a rotating drive member (36) connected to the stirring shaft (31), and the rotating drive member (36) is used to drive the stirring shaft (31) to rotate.

3. The coal mine filling and mixing testing machine according to claim 2, characterized in that: The stirring blade comprises a middle blade (32) and two end blades (33) respectively arranged near the two ends of the stirring shaft (31); the extension directions of the middle blade (32) and the end blades (33) are arranged at an angle; the outer end of the middle blade (32) has a material gathering plate (34) extending along the axial direction of the stirring shaft (31); the width of the material gathering plate (34) gradually decreases from the middle to the two ends, and the thickness of the material gathering plate (34) gradually decreases from the middle to the two ends, and is used for dispersing materials to the two ends of the stirring shaft (31).

4. The coal mine filling and mixing testing machine according to claim 3, characterized in that: The outer end of the end blade (33) has a bulking plate (35) extending along the axial direction of the stirring shaft (31), the width of the bulking plate (35) away from the end of the middle blade (32) gradually increases, and the thickness of the bulking plate (35) away from the end of the middle blade (32) gradually increases.

5. The coal mine filling and mixing testing machine according to claim 2, characterized in that: The coal mine filling and mixing test machine further comprises a controller, which is electrically connected to the rotary drive member (36), and is used to send a start / stop instruction or a forward / reverse rotation instruction to the rotary drive member (36).

6. The coal mine filling and mixing testing machine according to claim 1, characterized in that: The stirring tank (2) is rotatably connected to the test bench (1) via a rotating shaft (61) and a rotating sleeve (62); the stirring assembly (3) is arranged through the rotating sleeve (62) and is rotatably matched with the rotating sleeve (62); a supporting seat (63) for supporting the rotating shaft (61) or the rotating shaft (61) sleeve is provided on the test bench (1); and a rotating motor (64) is provided at the outer end of the rotating shaft (61).

7. The coal mine filling and mixing testing machine according to claim 6, characterized in that: One end of the stirring tank (2) is provided with a limiting baffle (21), and the limiting baffle (21) can abut against the supporting seat (63) to limit the rotation angle of the stirring tank (2).

8. The coal mine filling and mixing test machine according to any one of claims 1 to 7, characterized in that: The mixing tank (2) is provided with an inlet and outlet hopper (7) connected to the inlet and outlet port. The opening of the inlet and outlet hopper (7) at one end away from the inlet and outlet port gradually becomes larger, and the baffle plate (4) is located below the inlet and outlet hopper (7).

9. The coal mine filling and mixing testing machine according to claim 8, characterized in that: A plurality of distribution barrels (5) are provided in the inlet and outlet ports. The distribution barrels (5) extend radially along the stirring assembly (3) and are spaced apart along the axial direction of the stirring assembly (3). The ends of the distribution barrels (5) are connected to the ends of the inlet and outlet hoppers (7) and are used to disperse the materials in the inlet and outlet hoppers (7) into a plurality of test molds (8) one by one when the materials are discharged.

10. The coal mine filling and mixing testing machine according to claim 9, characterized in that: Both ends of the baffle plate (4) are rotatably connected to the stirring tank (2) via horizontally extending rotating shafts, one of the rotating shafts being arranged to pass through the side wall of the stirring tank (2) and connected to a rotating handle (22).

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