A rapid mixing and casting device for high-water filling materials in mines

Abstract

This utility model belongs to the field of high-water filling technology for mines, specifically a rapid mixing and pouring device for high-water filling materials in mines, including a pair of mixing tanks; a mixing mechanism is installed inside each mixing tank; a magnetic control valve is installed at the bottom outlet of each mixing tank; a pressure pump is fixedly connected to the bottom of each mixing tank; the input end of the pressure pump is connected to the output end of the magnetic control valve; a three-way pipe is fixedly connected to the output end of the pair of pressure pumps; a shearing tank is installed at the other end of the three-way pipe; a shearing component is installed in the middle of the shearing tank; through the above structure, the slurry that has been mixed inside the pair of mixing tanks can be quickly transferred and mixed for pouring, eliminating the need for a transfer and storage device to store the slurry, and maintaining the slurry's high fluidity, reducing the difficulty of pouring and filling construction caused by the initial setting of the material. The intermittent opening and closing of the magnetic control valve allows the slurry to be mixed and discharged in the mixing tank, making it suitable for continuous pouring operations.

Description

Technical Field

[0001] This utility model belongs to the field of mining high-water filling technology, specifically a rapid mixing and pouring device for mining high-water filling materials. Background Technology

[0002] In the mining industry, backfilling technology is a key means to ensure safe underground production, control ground pressure disasters, and improve resource recovery rates.

[0003] High-water backfill materials (usually high-water-based gelling and solidifying materials formed by mixing two-component powders (component A and component B) with water) are widely used in mine sealing structures, goaf filling, and temporary roadway support due to their advantages such as fast solidification speed, high early strength, and good flowability. Currently, the on-site construction of high-water backfill materials often adopts a step-by-step operation mode of intermittent mixing followed by pumping and pouring. The mixed slurry needs to be temporarily stored in a transfer container or hopper. The stagnation time causes the slurry to lose fluidity or even begin to set, which can easily increase the difficulty of subsequent construction and reduce the quality of the operation.

[0004] Therefore, this utility model provides a rapid mixing and pouring device for high-water filling materials used in mines. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art, at least one technical problem raised in the background art is solved.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A rapid mixing and pouring device for high-water filling materials in mines, comprising a pair of mixing tanks; a mixing mechanism is installed inside each mixing tank; a magnetic control valve is installed at the bottom outlet of each mixing tank; a pressure pump is fixedly connected to the bottom of each mixing tank; the input end of the pressure pump is connected to the output end of the magnetic control valve; a three-way pipe is fixedly connected to the output end of the pair of pressure pumps; a shearing tank is installed at the other end of the three-way pipe; a shearing assembly is installed in the middle of the shearing tank; through the above structure, the slurry that has been mixed inside the pair of mixing tanks can be quickly transferred and mixed for pouring, eliminating the need for a transfer and storage device to store the slurry, maintaining high fluidity of the slurry, reducing difficulties in pouring and filling construction caused by initial setting of the material, and allowing the slurry to be mixed and discharged within the mixing tank through intermittent opening and closing of the magnetic control valve, suitable for continuous pouring operations.

[0007] Preferably, a feed pipe is fixedly connected to the top of the mixing tank; the mixing mechanism includes a support plate; the support plate is rotatably connected to the middle of the feed pipe; a first gear is fixedly connected to the middle of the support plate; a first motor is fixedly connected to the top of the mixing tank; a second gear is fixedly connected to the output end of the first motor; the second gear and the first gear mesh; and multiple stirring rods are installed in the middle of the support plate. With the above structure, multiple stirring rods are used to stir the material inside the mixing tank, so that the slurry can be more fully stirred and mixed inside the mixing tank during continuous pouring.

[0008] Preferably, the shearing assembly includes a second motor; the second motor is fixed to the top of the shearing tank; a shaft is fixed to the output end of the second motor; multiple high-shear serrated impellers are fixed to the middle of the shaft; multiple low-shear axial flow blades are fixed to the middle of the shaft; through the above structure, the slurry can be quickly and evenly mixed after entering the shearing tank and the agglomeration phenomenon in the slurry can be reduced, thereby improving the casting and filling effect.

[0009] Preferably, a toothed ring is fixedly connected to the inner wall of the mixing tank; the stirring rod is rotatably connected to the middle of the bearing plate; a third gear is fixedly connected to the top of the stirring rod; the third gear meshes with the toothed ring; through the above structure, the stirring rod can rotate on its own axis while revolving with the bearing plate, thereby further improving the mixing effect of the slurry.

[0010] Preferably, a connecting rod is fixedly connected to the bottom of the bearing plate; a connecting mechanism is installed in the middle of the connecting rod; and a scraper is installed in the middle of the connecting mechanism. Through the above structure, the residual slurry on the inner wall of the mixing tank can be easily cleaned, reducing the occurrence of slurry residue and solidification, and improving the cleaning convenience of the device.

[0011] Preferably, the connecting mechanism includes a connecting plate; the connecting plate is slidably connected to the middle of the connecting rod; a spring is installed at the connection between the connecting plate and the connecting rod; the scraper is fixedly connected to the middle of the connecting plate; through the above structure, the scraper can still contact the inner wall of the mixing tank after wear, reducing the occurrence of a decrease in cleaning effect after scraper wear.

[0012] Preferably, multiple scrapers are fixedly connected to the middle of the connecting plate; all of the scrapers are inclined; with the above structure, when cleaning the inside of the mixing tank, the slurry scraped off by the scrapers can be guided downward and then discharged with the water flow, thereby improving the cleaning speed and cleaning effect of the inside of the mixing tank.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. The present invention relates to a rapid mixing and pouring device for high-water filling materials in mines. Through the arrangement of a mixing tank, a magnetic control valve, a pressure pump, a three-way pipe, a shear tank, a mixing mechanism, and a shearing component, the device can quickly transfer and mix the slurry that has been mixed inside a pair of mixing tanks for subsequent pouring. It eliminates the need for a transfer and storage device to store the slurry and maintains the slurry's high fluidity, reducing the difficulties in pouring and filling construction caused by the initial setting of the material. The intermittent opening and closing of the magnetic control valve allows the slurry to be mixed and discharged within the mixing tank, making it suitable for continuous pouring operations.

[0015] 2. The mining high-water filling material rapid mixing and pouring device of this utility model, through the arrangement of feed pipe, bearing plate, first gear, first motor, second gear and stirring rod, uses multiple stirring rods to stir the material inside the mixing tank, so that the slurry can be more fully mixed inside the mixing tank during continuous pouring. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the mixing tank in this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the stirring rod in this utility model;

[0020] Figure 4 This is a schematic diagram of the scraper structure in this utility model;

[0021] Figure 5 This is a schematic diagram of the shearing tank in this utility model.

[0022] In the diagram: 1. Mixing tank; 12. Magnetically controlled valve; 13. Pressure pump; 14. T-pipe; 15. Shear tank; 2. Feed pipe; 21. Bearing plate; 22. First gear; 23. First motor; 24. Second gear; 25. Mixing rod; 3. Second motor; 31. Shaft; 32. High-shear serrated impeller; 33. Low-shear axial flow blade; 4. Gear ring; 41. Third gear; 5. Connecting rod; 51. Scraper; 6. Connecting plate; 61. Spring. Detailed Implementation

[0023] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0024] like Figures 1 to 5As shown in the figure, a rapid mixing and pouring device for high-water filling materials in mines according to an embodiment of the present invention includes a pair of mixing tanks 1; a mixing mechanism is installed inside the mixing tank 1; a magnetic control valve 12 is installed at the bottom outlet of the mixing tank 1; a pressure pump 13 is fixedly connected to the bottom of the mixing tank 1; the input end of the pressure pump 13 is connected to the output end of the magnetic control valve 12; a three-way pipe 14 is fixedly connected to the output end of the pair of pressure pumps 13; a shearing tank 15 is installed at the other end of the three-way pipe 14; a shearing component is installed in the middle of the shearing tank 15; during operation, two powders are respectively put into the pair of mixing tanks 1 and water is added, and the mixing components are used to stir them to form corresponding slurries inside the mixing tanks 1. After stirring for a period of time, the magnetic control valve 12 and the pressure pump 13 are connected to the bottom outlet of the mixing tank 1. 3. Opening the valve allows the slurry inside the pair of mixing tanks 1 to flow rapidly into the three-way pipe 14. The two slurries will then be initially mixed in the three-way pipe 14 and enter the shear tank 15 through the three-way pipe 14. The shearing component inside the shear tank 15 processes and mixes the slurry again to obtain the corresponding filling material, which is then extracted for pouring. Through the above structure, the slurry that has been mixed in the pair of mixing tanks 1 can be quickly transferred and mixed for pouring without the need for a transfer and storage device to store the slurry. This keeps the slurry highly fluid and reduces the difficulty of pouring and filling construction caused by the initial setting of the material. The intermittent opening and closing of the magnetic control valve 12 allows the slurry to be mixed and discharged in the mixing tank 1, which is suitable for continuous pouring operations.

[0025] like Figures 1 to 4 As shown, a feed pipe 2 is fixedly connected to the top of the mixing tank 1; the mixing mechanism includes a support plate 21; the support plate 21 is rotatably connected to the middle of the feed pipe 2; a first gear 22 is fixedly connected to the middle of the support plate 21; a first motor 23 is fixedly connected to the top of the mixing tank 1; a second gear 24 is fixedly connected to the output end of the first motor 23; the second gear 24 meshes with the first gear 22; multiple stirring rods 25 are installed in the middle of the support plate 21; during operation, powder and water are added into the mixing tank 1, and then the first motor 23 is started to drive the second gear 24 to rotate. At this time, the second gear 24 will drive the support plate 21 to rotate through the cooperation of the first gear 22, so that multiple stirring rods 25 rotate in the mixing tank 1 to stir and mix the powder and water inside into the corresponding slurry. Through the above structure, multiple stirring rods 25 are used to stir the materials inside the mixing tank 1, so that the slurry can be more fully stirred and mixed inside the mixing tank 1 during continuous pouring.

[0026] like Figure 5As shown, the shearing assembly includes a second motor 3; the second motor 3 is fixed to the top of the shearing tank 15; a shaft 31 is fixed to the output end of the second motor 3; multiple high-shear serrated impellers 32 are fixed to the middle of the shaft 31; multiple low-shear axial flow blades 33 are fixed to the middle of the shaft 31; during operation, the second motor 3 is started to drive the high-shear serrated impellers 32 and the low-shear axial flow blades 33 to rotate rapidly. As the two slurries are initially mixed in the three-way pipe 14 and injected into the shearing tank 15, the slurry is stirred and mixed in the shearing tank 15 by the rapidly rotating high-shear serrated impellers 32 and the low-shear axial flow blades 33. At the same time, the high shear force generated by the rapidly rotating high-shear serrated impellers 32, combined with the convection generated by the rotation of the low-shear axial flow blades 33, makes the slurry mix rapidly and breaks down some of the lumps. Through the above structure, the slurry can be quickly and evenly mixed after entering the shearing tank 15 and the lumps in the slurry can be reduced, thereby improving the casting and filling effect.

[0027] like Figures 1 to 4 As shown, a toothed ring 4 is fixedly connected to the inner wall of the mixing tank 1; the stirring rod 25 is rotatably connected to the middle of the bearing plate 21; a third gear 41 is fixedly connected to the top of the stirring rod 25; the third gear 41 meshes with the toothed ring 4; during operation, as the bearing plate 21 rotates, multiple stirring rods 25 will revolve around the bearing plate 21, and at the same time, the stirring rods 25 will rotate on their own axis due to the cooperation of the toothed ring 4 and the third gear 41. Through the above structure, the stirring rods 25 can rotate on their own axis while revolving around the bearing plate 21, thereby further improving the mixing effect of the slurry.

[0028] like Figures 1 to 4 As shown, a connecting rod 5 is fixedly connected to the bottom of the bearing plate 21; a connecting mechanism is installed in the middle of the connecting rod 5; a scraper 51 is installed in the middle of the connecting mechanism; during operation, after the device is used, it needs to be cleaned in time to prevent residual slurry from solidifying and adhering inside the machine. During cleaning, water is injected into the mixing tank 1. As the first motor 23 runs, the scraper 51 will rotate with the bearing plate 21. At this time, the scraper 51 will scrape off the slurry adhering to the inner wall of the mixing tank 1. Through the above structure, the residual slurry on the inner wall of the mixing tank 1 can be easily cleaned, reducing the occurrence of slurry residue and solidification, and improving the cleaning convenience of the device.

[0029] like Figure 4 As shown, the connecting mechanism includes a connecting plate 6; the connecting plate 6 is slidably connected to the middle of the connecting rod 5; a spring 61 is installed at the connection between the connecting plate 6 and the connecting rod 5; the scraper 51 is fixedly connected to the middle of the connecting plate 6; during operation, as the device is used for a long time, the scraper 51 will wear due to friction with the inside of the mixing tank 1. The spring 61 will push the connecting plate 6 towards the inner wall of the mixing tank 1 through its elastic force, so that the scraper 51 can still contact the inner wall of the mixing tank 1 after wear, reducing the occurrence of a decrease in cleaning effect after the scraper 51 wears.

[0030] like Figure 4 As shown, multiple scrapers 51 are fixedly connected to the middle of the connecting plate 6; all scrapers 51 are inclined; through the above structure, when cleaning the inside of the mixing tank 1, the slurry scraped off by the scrapers 51 can be guided downward and then discharged with the water flow, thereby improving the cleaning speed and cleaning effect of the inside of the mixing tank 1.

[0031] During operation, the two powders are separately added to a pair of mixing tanks 1, and water is added. The mixing components stir the powders to form corresponding slurries inside the mixing tanks 1. After stirring for a period of time, the magnetic control valve 12 and the pressure pump 13 are opened, allowing the slurries inside the mixing tanks 1 to quickly flow into the three-way pipe 14. The two slurries are then initially mixed in the three-way pipe 14 before entering the shearing tank 15. The shearing components inside the shearing tank 15 further process and mix the slurries to obtain the corresponding filling material, which is then extracted into the filling tank. In the pouring process, powder and water are added to the mixing tank 1. Then, the first motor 23 is started, driving the second gear 24 to rotate. At this time, the second gear 24, in conjunction with the first gear 22, drives the bearing plate 21 to rotate, causing multiple stirring rods 25 to rotate inside the mixing tank 1 to mix the powder and water into a corresponding slurry. The second motor 3 is started, driving the high-shear serrated impeller 32 and the low-shear axial flow blades 33 to rotate rapidly. As the two slurries are initially mixed in the three-way pipe 14 and injected into the shearing tank 15, the slurry is stirred and mixed in the shearing tank 15 by the rapidly rotating high-shear serrated impeller 32 and the low-shear axial flow blades 33. At the same time, the high shear force generated by the rapidly rotating high-shear serrated impeller 32, combined with the convection generated by the rotation of the low-shear axial flow blades 33, causes the slurry to mix rapidly and breaks down some of the clumps. As the bearing plate 21 rotates, the multiple stirring rods 25 will revolve around the bearing plate 21. Simultaneously, the stirring rods 25 will rotate on their own axis due to the cooperation of the gear ring 4 and the third gear 41. After the device is used, it needs to be cleaned and tidied up in a timely manner. To prevent residual slurry from solidifying and adhering inside the machine, cleaning is performed. During cleaning, water is injected into the mixing tank 1. As the first motor 23 runs, the scraper 51 rotates with the bearing plate 21. At this time, the scraper 51 scrapes off the slurry adhering to the inner wall of the mixing tank 1. With prolonged use of the device, the scraper 51 will wear due to friction with the inside of the mixing tank 1. The spring 61 will push the connecting plate 6 towards the inner wall of the mixing tank 1 through its elastic force, so that the scraper 51 can still contact the inner wall of the mixing tank 1 after wear.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rapid mixing and casting device for high-water-content filling materials in mines, comprising a pair of mixing tanks (1); characterized in that: The mixing tank (1) is equipped with a stirring mechanism; a magnetic control valve (12) is installed at the bottom outlet of the mixing tank (1); a pressure pump (13) is fixedly connected to the bottom of the mixing tank (1); the input end of the pressure pump (13) is connected to the output end of the magnetic control valve (12); a three-way pipe (14) is fixedly connected to the output end of a pair of pressure pumps (13); a shearing tank (15) is installed at the other end of the three-way pipe (14); a shearing assembly is installed in the middle of the shearing tank (15).

2. The rapid mixing and pouring device for high-water filling materials in mines according to claim 1, characterized in that: The top of the mixing tank (1) is fixedly connected to a feed pipe (2); the mixing mechanism includes a support plate (21); the support plate (21) is rotatably connected to the middle of the feed pipe (2); a first gear (22) is fixedly connected to the middle of the support plate (21); a first motor (23) is fixedly connected to the top of the mixing tank (1); a second gear (24) is fixedly connected to the output end of the first motor (23); the second gear (24) and the first gear (22) mesh; a plurality of stirring rods (25) are installed in the middle of the support plate (21).

3. The rapid mixing and pouring device for high-water filling materials in mines according to claim 1, characterized in that: The shearing assembly includes a second motor (3); the second motor (3) is fixed to the top of the shearing tank (15); a shaft (31) is fixed to the output end of the second motor (3); a plurality of high-shear sawtooth impellers (32) are fixed to the middle of the shaft (31); a plurality of low-shear axial flow blades (33) are fixed to the middle of the shaft (31).

4. The rapid mixing and pouring device for high-water filling materials in mines according to claim 2, characterized in that: A toothed ring (4) is fixedly connected to the inner wall of the mixing tank (1); the stirring rod (25) is rotatably connected to the middle of the bearing plate (21); a third gear (41) is fixedly connected to the top of the stirring rod (25); the third gear (41) and the toothed ring (4) mesh.

5. The rapid mixing and pouring device for high-water filling materials in mines according to claim 2, characterized in that: A connecting rod (5) is fixedly connected to the bottom of the bearing plate (21); a connecting mechanism is installed in the middle of the connecting rod (5); and a scraper (51) is installed in the middle of the connecting mechanism.

6. The rapid mixing and pouring device for high-water filling materials in mines according to claim 5, characterized in that: The connecting mechanism includes a connecting plate (6); the connecting plate (6) is slidably connected to the middle part of the connecting rod (5); a spring (61) is installed at the connection between the connecting plate (6) and the connecting rod (5); the scraper (51) is fixedly connected to the middle part of the connecting plate (6).

7. The rapid mixing and pouring device for high-water filling materials in mines according to claim 5, characterized in that: Multiple scrapers (51) are fixedly connected to the middle of the connecting plate (6); all of the scrapers (51) are inclined.

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