A device for preventing segregation of machine-made sand storage

Abstract

The invention relates to an anti-segregation device for a machine-made sand storage warehouse, comprising a casing warehouse and a feeding pipe. The casing warehouse is arranged in a machine-made sand warehouse, and square holes are evenly distributed on the warehouse wall of the casing warehouse. Anti-segregation regulating pipes are fixedly installed on the square holes. The anti-segregation regulating pipes include an active regulating pipe and two passive regulating pipes. A square slip ring and two first baffles are arranged in the passive regulating pipe, and two second baffles are arranged in the active regulating pipe. The square holes are used to reduce the horizontal rolling speed of large-particle machine-made sand along the inclined surface of the cone material, so as to realize the anti-segregation function of the machine-made sand. According to different flow rates of the machine-made sand, the machine-made sand in the passive regulating pipe impacts a filter screen, and the ratio of entering the passive regulating pipe and the active regulating pipe is automatically adjusted to ensure that the machine-made sand in the anti-segregation regulating pipe is fully mixed to prevent segregation again.

Description

Technical Field

[0001] The invention belongs to the technical field of machine-made sand manufacturing equipment, and in particular relates to an anti-segregation device for a machine-made sand storage tank. Background Art

[0002] Artificial sand is an industrialized building material. According to its powder selection process, it can be divided into wet sand making and dry sand making. Dry sand making is that sand particles are made by air separation in a powder selection machine in a dry state. After the manufactured sand is produced, it is transported to the highest point of the pile by a belt, and then it will directly settle freely to the bottom of the pile. Since the force between stone powder and sand particles in dry sand making is not closely connected, the sand particles are different in size and shape, and the resistance in the air is different, which will lead to different falling speeds, so that the finished dry mix will be stratified and segregated during the falling process, which greatly affects the quality of the manufactured sand.

[0003] At present, the most commonly used anti-segregation device is to reduce the segregation of machine-made sand by directly lowering the stockpile height or installing a conduit at the discharge point to indirectly lower the stockpile height. The disadvantages of these two methods are that the anti-segregation effect is not obvious when the stockpile height is lowered. In large-scale cylindrical silos, the height of the anti-segregation cylinder and the height of the silo bottom are too large, which will seriously affect the anti-segregation effect.

[0004] In view of the shortcomings of existing technologies, further improvements are needed. Summary of the invention

[0005] In view of this, an object of the present invention is to provide an anti-segregation device for a machine-made sand storage reservoir to solve the above-mentioned problem.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a device for preventing segregation of a machine-made sand storage tank, comprising a casing and a discharge pipe, wherein the casing is arranged in a machine-made sand warehouse, and the casing is a cylindrical structure with a diameter of 8 meters, a height of 8-12 meters and an upper open end, and a plurality of square holes are evenly distributed on the wall of the casing, and a belt conveyor is arranged above the discharge pipe, and the discharge port of the belt conveyor is connected with the upper end of the discharge pipe, and a feeding barrel is arranged at the lower end of the discharge pipe, and the feeding barrel is an inverted cone structure with a small upper end and a large lower end, and the upper end of the feeding barrel is connected with the lower end of the discharge pipe, and the lower end of the feeding barrel is fixedly connected to the upper edge of the casing.

[0007] The anti-segregation regulating tube is fixedly installed on the square hole, and the anti-segregation regulating tube includes an active regulating tube and two passive regulating tubes. The passive regulating tubes are distributed on the left and right sides of the active regulating tube. The feed ports of the active regulating tube and the passive regulating tube are both located in the square hole, and the discharge port of the active regulating tube is located outside the sheath. The discharge port of the passive regulating tube is bent toward one side of the active regulating tube, and the discharge port of the passive regulating tube is connected with the side of the active regulating tube. A square slip ring is arranged in the passive regulating tube, and the slip ring slides in the passive regulating tube. A filter is fixed in the slip ring. Guide rails are fixed on the upper and lower edges of the side, and two first baffles are arranged between the slide rails and the feed port of the passive adjustment tube, the inner edges of the two first baffles are respectively hinged to the left and right edges of the feed port of the passive adjustment tube, and the upper and lower ends of the outer edges of the first baffles are respectively slidably connected to the guide rails at corresponding positions, and two parallel and horizontal cross bars are arranged at the discharge port of the passive adjustment tube, two parallel sliding bars are fixed on each cross bar, the slip ring is slidably connected to the sliding bar, and a spring is sleeved on the sliding bar, one end of the spring is fixedly connected to the slip ring, and the other end of the spring is fixedly connected to the cross bar.

[0008] The active adjustment tube is provided with two second baffles which are symmetrical on the left and right. The inner edges of the second baffles are respectively hinged to the left and right edges of the feed port of the active adjustment tube. An adjustment rod is slidably connected on the tube wall between the active adjustment tube and the passive adjustment tube. Guide wheels are provided at both ends of the adjustment rod, and the guide wheels are respectively in contact with the first baffle and the second baffle on the corresponding side.

[0009] Preferably, the total area of ​​the square holes is much larger than the diameter of the feed pipe. By providing the square holes, the horizontal rolling speed of the machine-made sand is reduced to prevent the machine-made sand from segregating.

[0010] Preferably, a plurality of partitions are evenly distributed in an annular shape inside the feed barrel, and the partitions are used to evenly divide the internal space of the feed barrel into a plurality of small spaces, so that the machine-made sand is evenly distributed when entering the storage.

[0011] Preferably, the mesh of the filter in the slip ring is larger than the diameter of the machine-made sand particles, and the filter is used to increase the resistance of the machine-made sand passing through, so as to facilitate the sliding of the slip ring.

[0012] The beneficial effects of the present invention are as follows: the present invention arranges a jacket in the machine-made sand storehouse, and utilizes the jacket to divide the machine-made sand storehouse into multiple independent spaces, thereby reducing material stacking. At the same time, multiple square holes are evenly distributed on the wall of the jacket to reduce the horizontal rolling speed of large-particle machine-made sand along the tapered surface, thereby realizing the anti-segregation function of machine-made sand. After the anti-segregation regulating tube is installed in the square hole, a part of the machine-made sand enters the active regulating tube, and the other part of the machine-made sand enters the passive regulating tube. The machine-made sand in the passive regulating tube changes direction at the bending part of the passive regulating tube and enters the active regulating tube. The machine-made sand in the passive regulating tube is impacted by the machine-made sand in the active regulating tube. On the one hand, under the limiting action of the filter screen, the flow velocity of the machine-made sand in the passive regulating tube is lower than the flow velocity of the machine-made sand in the active regulating tube. On the other hand, the machine-made sand entering the active regulating tube from the passive regulating tube has a different flow direction from the machine-made sand in the active regulating tube. Under the mutual impact, not only the flow velocity is reduced The moving speed is increased and they are mixed with each other at the same time to prevent segregation during feeding, thereby further improving the anti-segregation effect. In the process of the machine-made sand in the passive regulating tube flowing through the filter screen, the resistance between the machine-made sand and the filter screen pushes the sliding compression spring of the slip ring, and the first baffle opens to the left and right sides under the limiting action of the guide rail, and the faster the flow speed of the machine-made sand, the larger the opening amplitude of the first baffle. Under the action of the adjusting rod, the first baffle pushes the second baffle to tighten, that is, the machine-made sand is used to impact the filter screen compression spring to adjust the opening and closing of the first baffle and the second baffle, and the cross-sectional size of the machine-made sand passing through the passive regulating tube and the active regulating tube is adjusted. The faster the flow speed of the machine-made sand, the more machine-made sand enters the passive regulating tube, and under the limiting action of the second baffle, the cross-sectional size of the machine-made sand in the active regulating tube becomes smaller, and the machine-made sand entering the active regulating tube becomes less. According to the different flow rates of the machine-made sand, the ratio of entering the passive regulating tube and the active regulating tube is automatically adjusted to ensure that the machine-made sand in the anti-segregation regulating tube is fully mixed to prevent segregation again. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is the main structure diagram of the present invention;

[0014] Figure 2 The cross section of the sleeve of the present invention Figure 1 ;

[0015] Figure 3 A bottom view of the feed barrel of the present invention;

[0016] Figure 4 It is a cross-sectional view of the feed barrel of the present invention;

[0017] Figure 5 The cross section of the sleeve of the present invention Figure 2 ;

[0018] Figure 6 This is a structural diagram of the anti-segregation regulating tube of the present invention;

[0019] Figure 7 For the present invention Figure 6 A partial enlarged view of area A in the middle.

[0020] Numbers in the figure: 1 sleeve; 101 square hole; 2 feed pipe; 3 feed barrel; 301 partition; 4 anti-segregation adjustment tube; 401 active adjustment tube; 402 passive adjustment tube; 5 slip ring; 6 guide rail; 7 first baffle; 8 cross bar; 9 slide bar; 10 spring; 11 second baffle; 12 adjustment rod; 13 guide wheel. DETAILED DESCRIPTION

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0022] Embodiment 1, as Figure 1-4 As shown, an anti-segregation device for a machine-made sand storage tank comprises a casing 1 and a discharge pipe 2, wherein the casing 1 is arranged in a machine-made sand warehouse, the casing 1 is a cylindrical structure with a diameter of 8 meters, a height of 8-12 meters and an upper open end, a plurality of square holes 101 are evenly distributed on the storage wall of the casing 1, a belt conveyor is arranged above the discharge pipe 2, and the produced machine-made sand is transported by the belt conveyor, the discharge port of the belt conveyor is connected with the upper end of the discharge pipe 2, a feeding barrel 3 is arranged at the lower end of the discharge pipe 2, the feeding barrel 3 is an inverted cone structure with a small upper end and a large lower end, the upper end of the feeding barrel 3 is connected with the lower end of the discharge pipe 2, and the lower end of the feeding barrel 3 is fixedly connected to the upper edge of the casing 1.

[0023] In this embodiment, the total area of ​​the square holes 101 is much larger than the aperture of the discharge pipe 2, ensuring that the flow rate of the machine-made sand overflowing from the square holes 101 in the horizontal direction is much lower than the flow rate of the machine-made sand in the discharge pipe 2, thereby preventing the machine-made sand from segregating by reducing the horizontal rolling speed of the machine-made sand.

[0024] In this embodiment, a plurality of partitions 301 are evenly distributed in an annular manner inside the feed barrel 3. The partitions 301 are used to evenly divide the internal space of the feed barrel 3 into a plurality of small spaces, so that the machine-made sand is evenly distributed when entering the casing.

[0025] In this embodiment, during use, a jacket 1 is set in the machine-made sand warehouse, and the machine-made sand warehouse is divided into multiple independent spaces by the jacket 1 to reduce material stacking. At the same time, a plurality of square holes 101 are evenly distributed on the wall of the jacket 1 to reduce the horizontal rolling speed of large-particle machine-made sand along the tapered material slope, thereby preventing segregation of machine-made sand.

[0026] Example 2: Figure 5-7As shown, on the basis of Example 1, an anti-segregation regulating tube 4 is fixedly installed on the square hole 101, and the anti-segregation regulating tube 4 includes an active regulating tube 401 and two passive regulating tubes 402, and the passive regulating tubes 402 are distributed on the left and right sides of the active regulating tube 401, and the feed ports of the active regulating tube 401 and the passive regulating tube 402 are both located in the square hole 102, and the discharge port of the active regulating tube 401 is located outside the sleeve 1, and the discharge port of the passive regulating tube 402 is bent to one side of the active regulating tube 401, and the discharge port of the passive regulating tube 402 is connected with the side of the active regulating tube 401, and a square slip ring 5 is arranged in the passive regulating tube 402, and the slip ring 5 is arranged in the passive regulating tube 402. Internal sliding, a filter is fixed inside the slip ring 5, guide rails 6 are fixed on the upper and lower inner edges of the slip ring 5, and two first baffles 7 are arranged between the slip ring 5 and the feed port of the passive regulating tube 402, the inner edges of the two first baffles 7 are hinged to the left and right edges of the feed port of the passive regulating tube 402 respectively, and the upper and lower ends of the outer edges of the first baffles 7 are slidingly connected to the guide rails 6 at corresponding positions respectively, and two parallel and horizontal cross bars 8 are arranged at the discharge port of the passive regulating tube 402, and two parallel sliding bars 9 are fixed on each cross bar 8, the slip ring 5 is slidingly connected to the sliding bar 9, and a spring 10 is sleeved on the sliding bar 9, one end of the spring 10 is fixedly connected to the slip ring 5, and the other end of the spring 10 is fixedly connected to the cross bar 8.

[0027] In this embodiment, the mesh of the filter in the slip ring 5 is larger than the diameter of the machine-made sand particles. The filter is used to increase the resistance of the machine-made sand passing through, so as to facilitate the sliding of the slip ring 5.

[0028] In this embodiment, the active adjustment tube 401 is provided with two second baffles 11 which are symmetrical on the left and right. The inner edges of the second baffles 11 are respectively hinged to the left and right edges of the feed port of the active adjustment tube 401. An adjustment rod 12 is slidably connected on the tube wall between the active adjustment tube 401 and the passive adjustment tube 402. Guide wheels 13 are provided at both ends of the left and right ends of the adjustment rod 12. The guide wheels 13 are respectively in contact with the first baffle 7 and the second baffle 11 on the corresponding side.

[0029] In this embodiment, when the machine-made sand enters the anti-segregation regulating pipe 4 through the square hole 101, a part of the machine-made sand enters the active regulating pipe 401, and the other part of the machine-made sand enters the passive regulating pipe 402. In the process of the machine-made sand in the passive regulating pipe 402 flowing through the filter screen, the resistance between the machine-made sand and the filter screen pushes the sliding ring 5 to slide the compression spring, and the first baffle 7 opens to the left and right sides under the limiting action of the guide rail 6. The faster the flow speed of the machine-made sand, the greater the opening amplitude of the first baffle 7, the larger the cross-section of the machine-made sand passing through the passive regulating pipe 402, and the more machine-made sand enters the passive regulating pipe 402. At the same time, the first baffle 7, under the action of the regulating rod 12, pushes the second baffle 11 to tighten, so that the cross-section of the machine-made sand passing through the active regulating pipe 401 becomes smaller, and the sand entering The amount of machine-made sand in the active regulating tube 401 decreases, and the machine-made sand in the active regulating tube 401 flows out directly from the discharge port of the active regulating tube 401, while the machine-made sand in the passive regulating tube 402 changes direction at the bending part of the passive regulating tube 402 and then enters the active regulating tube 401, impacting the machine-made sand in the active regulating tube 401. On the one hand, under the limiting effect of the filter, the flow velocity of the machine-made sand in the passive regulating tube 402 is lower than the flow velocity of the machine-made sand in the active regulating tube 401. On the other hand, the machine-made sand entering the active regulating tube 401 from the passive regulating tube 402 has a different flow direction from the machine-made sand in the active regulating tube 401. The mutual impact not only reduces the flow velocity, but also mixes with each other, preventing segregation during feeding, thereby further improving the anti-segregation effect.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A machine-made sand storage anti-segregation device, comprising a casing and a feeding pipe, characterized in that: The jacket is arranged in the machine-made sand warehouse, and is a cylindrical structure with a diameter of 8 meters, a height of 8-12 meters and an upper open end. A plurality of square holes are evenly distributed on the jacket wall. A belt conveyor is arranged above the discharge pipe, and the discharge port of the belt conveyor is connected with the upper end of the discharge pipe. A feed barrel is arranged at the lower end of the discharge pipe, and the feed barrel is an inverted cone structure with a small upper end and a large lower end. The upper end of the feed barrel is connected with the lower end of the discharge pipe, and the lower end of the feed barrel is fixedly connected with the upper edge of the jacket; The anti-segregation regulating tube is fixedly installed on the square hole, and the anti-segregation regulating tube includes an active regulating tube and two passive regulating tubes. The passive regulating tubes are distributed on the left and right sides of the active regulating tube. The feed ports of the active regulating tube and the passive regulating tube are both located in the square hole, and the discharge port of the active regulating tube is located outside the sheath. The discharge port of the passive regulating tube is bent toward one side of the active regulating tube, and the discharge port of the passive regulating tube is connected with the side of the active regulating tube. A square slip ring is arranged in the passive regulating tube, and the slip ring slides in the passive regulating tube. A filter is fixed in the slip ring. Guide rails are fixed on the upper and lower edges of the side, and two first baffles are arranged between the slide rails and the feed port of the passive adjustment tube, the inner edges of the two first baffles are respectively hinged to the left and right edges of the feed port of the passive adjustment tube, and the upper and lower ends of the outer edges of the first baffles are respectively slidably connected to the guide rails at the corresponding positions, and two mutually parallel and horizontal cross bars are arranged at the discharge port of the passive adjustment tube, and two mutually parallel sliding rods are fixed on each cross bar, the sliding ring is slidably connected to the sliding rod, and a spring is sleeved on the sliding rod, one end of the spring is fixedly connected to the sliding ring, and the other end of the spring is fixedly connected to the cross bar; The active adjustment tube is provided with two second baffles which are symmetrical on the left and right. The inner edges of the second baffles are respectively hinged to the left and right edges of the feed port of the active adjustment tube. An adjustment rod is slidably connected on the tube wall between the active adjustment tube and the passive adjustment tube. Guide wheels are provided at both ends of the adjustment rod, and the guide wheels are respectively in contact with the first baffle and the second baffle on the corresponding side.

2. The anti-segregation device for machine-made sand storage according to claim 1, characterized in that: The total area of ​​the square holes is much larger than the hole diameter of the feed pipe.

3. The anti-segregation device for machine-made sand storage according to claim 1, characterized in that: A plurality of partitions are evenly distributed in an annular manner inside the feed barrel, and the partitions are used to evenly divide the internal space of the feed barrel into a plurality of small spaces, so that the machine-made sand is evenly distributed when entering the casing.

4. The anti-segregation device for a machine-made sand storage tank according to claim 2, characterized in that: The mesh of the filter screen in the sliding ring is larger than the diameter of the machine-made sand particles.

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