A drainage system for a glass silica sand raw material stacking and reclaiming site

Abstract

The present invention provides a drainage system for a glass silica sand raw material storage site, belonging to the technical field of glass raw material storage. The system comprises a sand pool and a drainage pipe. The sand pool comprises a high retaining wall, a low retaining wall, two side retaining walls and a pool bottom plate. The side close to the high retaining wall is the feeding side, and the side close to the low retaining wall is the taking side. The pool bottom plate is located at the bottom of the area enclosed by the high retaining wall, the low retaining wall and the two side retaining walls. The pool bottom plate comprises a gentle slope surface and a steep slope surface. The junction of the gentle slope surface and the steep slope surface is the lowest point of the pool bottom plate. A water collection ditch is provided at the lowest point of the pool bottom plate. The drainage pipe is placed in the water collection ditch. A carrying plate is hinged to the top of the steep slope surface. The water collection ditch is located between the carrying plate and the steep slope surface. The carrying plate can swing around the hinge point until it abuts against the gentle slope surface. The drainage pipe is evenly distributed with small water holes that penetrate the inner and outer walls of the drainage pipe. Both ends of the drainage pipe extend out of the side retaining walls. The present invention has the advantages of high drainage efficiency and low maintenance cost.

Description

Technical Field

[0001] The invention belongs to the technical field of glass raw material storage, and relates to a drainage system for a glass silica sand raw material storage site. Background Art

[0002] In the production of raw glass, silica sand accounts for approximately 60% of the total raw material consumption. Large and medium-sized manufacturers typically construct dedicated silica sand storage areas, typically capable of storing 20,000 to 50,000 tons of sand. These areas, along with bucket elevators, distribution belts, and sand rakes, form a complete workshop to manage the storage and turnover of silica sand. The purpose of these storage areas is to stabilize the composition, particle size, and moisture content of the sand, while also promoting the degradation of organic matter within the sand, ensuring consistent, high-quality glass production. Silica sand is produced using a wet process, typically with a moisture content of around 10% upon arrival. This moisture content is reduced to 3% to 6% in the storage areas before use in the mix. This ensures accurate weighing, uniform mixing, and moisture stability.

[0003] The existing silica sand storage site is a rectangular structure with high and low retaining walls on the long sides and an inclined retaining wall on the wide sides. A fixed layer of silica sand, which accounts for 25% to 30% of the total capacity, is generally retained in the pool floor. This is for emergency use and also because the existing drainage structure cannot effectively control the silica sand at the bottom. The pool (pit) bottom is flat, and a drainage ditch is set on one side of the high retaining wall to divert the sediment into the sewer for direct discharge. The existing technology has the following disadvantages:

[0004] 1. The flat bottom of the sand pool is not conducive to the accumulation of water in the drainage ditch;

[0005] 2. The drainage ditch is located on one side of the sand pool, and the sedimentation water accumulates for a long time;

[0006] 3. The fine powder and mud residue deposited by silica sand can easily cause clogging of drainage ditches and poor drainage;

[0007] 4. The sedimentation water is directly discharged into the sewer, which is likely to cause sewer blockage and pollute the environment;

[0008] 5. Water overflows from the bottom of the pile, affecting the quality of silica sand and the on-site environment;

[0009] 6. The silica sand reserves in the fixed layer of the pool bottom are high, which occupies capital and storage capacity of the storage site. Summary of the Invention

[0010] The purpose of the present invention is to provide a drainage system for a glass silica sand raw material storage site in response to the above-mentioned problems existing in the existing technology. The technical problem to be solved by the present invention is how to improve the drainage efficiency and extend the cleaning cycle of the drainage system blockage.

[0011] The object of the present invention can be achieved through the following technical solutions: a drainage system for a glass silica sand raw material storage site, characterized in that it includes a sand pool and a drainage pipe, the sand pool includes a high retaining wall, a low retaining wall, two side retaining walls and a pool bottom plate, one side close to the high retaining wall is a material feeding side, and the side close to the low retaining wall is a material taking side, the pool bottom plate is located at the bottom of the area enclosed by the high retaining wall, the low retaining wall and the two side retaining walls, the pool bottom plate includes a gentle slope surface and a steep slope surface, the connection between the gentle slope surface and the steep slope surface is the lowest point of the pool bottom plate, the lowest point of the pool bottom plate is provided with a water collecting ditch, the drainage pipe is placed in the water collecting ditch, the top of the steep slope surface is hinged with a carrying plate, the water collecting ditch is located between the carrying plate and the steep slope surface, the carrying plate can swing around the hinge point to abut against the gentle slope surface, the drainage pipe is evenly distributed with water-passing holes penetrating the inner and outer walls of the drainage pipe, and both ends of the drainage pipe respectively extend out of the side retaining walls.

[0012] Furthermore, the two ends of the drainage pipe are respectively rotatably connected to the two side retaining walls at the ditch, and a rotating shaft is hinged in the middle of the steep slope, and the rotating shaft is connected to the output shaft of a reduction motor. A filter screen connected at both ends is pulled between the rotating shaft and the drainage pipe.

[0013] Furthermore, the pore size of the filter is smaller than the pore size of the water-passing hole.

[0014] Furthermore, a cleaning port is provided on the steep slope surface, and the filter screen portion faces the cleaning port.

[0015] Furthermore, the drainage pipe has an inclination angle of 1 to 3 degrees with the horizontal plane.

[0016] Furthermore, a plurality of nuts are provided on the steep slope surface, and a support rod is connected to the inner thread of the nut, and the inner end of the support rod rests on the outer surface of the carrying plate.

[0017] Furthermore, the slope of the gentle slope is 2 to 10 degrees.

[0018] Furthermore, the steep slope has a gradient of 30 to 80 degrees.

[0019] Compared with existing technologies, this solution has the following advantages:

[0020] 1. Set a slope at the bottom of the pool to improve drainage efficiency.

[0021] 2. Low maintenance cost and less maintenance workload.

[0022] 3. The reduction motor can be started at regular intervals to rotate the drain pipe. This not only allows the sand stored in the water holes to be discharged to a certain extent, but also can condition the inner wall of the drain pipe. In the existing technology, the drain pipe is generally a fixed part. The accumulation of sand will cause the inner wall of the pipe to become hardened, which will reduce the drainage efficiency over time. When controlling the rotation of the drain pipe, you can choose to swing the carrying plate to a state that presses against the bottom of the pool, or keep it in the initial state. The so-called initial state means that there is a certain gap between the carrying plate and the bottom of the pool. The size of this gap can be appropriately adjusted according to the amount of sand stored.

[0023] 4. The filter screen provides preliminary isolation for the drain pipe, preventing large-grained gravel from passing through the filter screen and entering the small water holes in the drain pipe, which greatly alleviates the blockage pressure of the drain pipe.

[0024] 5. The filter can be cleaned in a circulating manner, and there is no need to transport the silica sand in the storage area during the filter cleaning process. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a cross-sectional view of the raw material storage area.

[0026] Figure 2 It is a three-dimensional structural diagram of the gentle slope surface, the steep slope surface and the carrying plate.

[0027] Figure 3 yes Figure 1 Enlarged view of part A in the middle.

[0028] Figure 4 It is a schematic diagram of the structure of the rotating shaft, drain pipe and filter.

[0029] In the figure, 1. Drain pipe; 11. Water hole; 2. High retaining wall; 3. Low retaining wall; 41. Gentle slope; 42. Steep slope; 421. Cleaning port; 43. Drainage ditch; 5. Carrying plate; 6. Rotating shaft; 7. Reducer motor; 8. Filter; 9. Support rod. DETAILED DESCRIPTION

[0030] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solutions of the present invention, but the present invention is not limited to these embodiments.

[0031] like Figure 1-Figure 4As shown, the drainage system of the glass silica sand raw material storage site includes a sand pool and a drainage pipe 1. The sand pool includes a high retaining wall 2, a low retaining wall 3, two side retaining walls and a pool bottom plate. The side close to the high retaining wall 2 is the feeding side, and the side close to the low retaining wall 3 is the taking side. The pool bottom plate is located at the bottom of the area enclosed by the high retaining wall 2, the low retaining wall 3 and the two side retaining walls. The pool bottom plate includes a gentle slope surface 41 and a steep slope surface 42. The junction of the gentle slope surface 41 and the steep slope surface 42 is the lowest point of the pool bottom plate. A water collecting ditch 43 is provided at the lowest point of the pool bottom plate. The drainage pipe 1 is placed in the water collecting ditch 43. A carrying plate 5 is hinged on the top of the steep slope surface 42. The water collecting ditch 43 is located between the carrying plate and the steep slope surface 42. The carrying plate can swing around the hinge point until it abuts against the gentle slope surface 41. The drainage pipe 1 is evenly distributed with water holes 11 that penetrate the inner and outer walls of the drainage pipe 1, and both ends of the drainage pipe 1 extend out of the side retaining walls.

[0032] The two ends of the drainage pipe 1 are respectively rotatably connected to the two side retaining walls at the ditch 43. A rotating shaft 6 is hinged in the middle of the steep slope, and the rotating shaft 6 is connected to the output shaft of a reduction motor 7. A filter screen 8 connected at both ends is pulled between the rotating shaft 6 and the drainage pipe 1. The aperture of the filter screen 8 is smaller than the aperture of the water hole 11.

[0033] A cleaning port 421 is provided on the steep slope surface, and a portion of the filter screen 8 faces the cleaning port 421 .

[0034] The drainage pipe 1 is inclined at an angle of 1 to 3 degrees to the horizontal plane.

[0035] A plurality of nuts are provided on the steep slope surface, and a support rod 9 is connected to the inner thread of the nut, and the inner end of the support rod 9 is against the outer surface of the carrying plate.

[0036] The gradient of the gentle slope is 2-10°, and the gradient of the steep slope is 30-80°. The water collection ditch 43 is located at one twentieth of the length of the pool bottom.

[0037] Setting a slope at the bottom of the pool is conducive to improving drainage efficiency, so that more silica sand in the pool meets water control conditions in a shorter period of time. The accumulation volume can be greatly reduced, avoiding the accumulation of a large amount of silica sand that occupies funds and storage capacity.

[0038] The lowest point of the slope is located near the reclaim side. Because the sand is in a heaped valley shape, the area near the reclaim side is further away from the valley top. The pressure from the silica sand on drain pipe 1 is relatively small, making it less prone to clogging. Maintenance on drain pipe 1 also requires relatively little sand removal, resulting in lower maintenance costs and workload. Silica sand differs from liquid in form; under low pressure, it can contain cavities. This is why this solution can mitigate the pressure that could cause clogging in drain pipe 1.

[0039] When feeding, a large amount of silica sand usually enters the pool, which will cause a large pressure on the silica sand originally in the pool. The drainage pipe 1 is far away from the feeding side, which can slow down the high-intensity squeezing of the silica sand on the drainage pipe 1 during feeding, causing the drainage pipe 1 to be blocked. The material withdrawal side generally takes out small amounts and multiple times, and it is not easy to cause a large flow of silica sand in the pool when taking out.

[0040] The provision of a carrying plate can not only further reduce the squeezing of the silica sand in the pool on the drain pipe 1, but also, when necessary, by swinging the carrying plate to its lower end to press against the pool bottom plate, separate the area where the drain pipe 1 is located from the area where most of the silica sand in the pool is located. By cleaning the smaller amount of silica sand on the inside of the carrying plate, the drain pipe 1 can be thoroughly cleaned.

[0041] Another reason why the drainage pipe 1 is subjected to less silica sand pressure is that the setting of the carrying plate 5 makes the silica sand surface level inside the carrying plate 5 lower than the lowest silica sand level outside the carrying plate 5, so that the amount of silica sand above the drainage pipe 1 is less.

[0042] The reduction motor 7 can be started at a fixed time to rotate the drain pipe 1. This can not only discharge the sand stored in the water-passing holes 11 to a certain extent, but also can condition the inner wall of the drain pipe 1. In the prior art, the drain pipe 1 is generally a stationary part. The accumulation of sand will cause the inner wall of the pipe to become hardened, which will reduce the drainage efficiency over time. When controlling the rotation of the drain pipe 1, the carrying plate 5 can be swung to a state of pressing against the bottom of the pool, or it can be kept in the initial state. The so-called initial state is that there is a certain gap between the carrying plate 5 and the bottom of the pool. The size of this gap can be appropriately adjusted according to the amount of sand stored.

[0043] Filter 8 provides a preliminary barrier to drain pipe 1, preventing large sand particles from entering the drain pipe's small water holes 11. This significantly reduces the pressure of blockage. Furthermore, due to the presence of support plate 5, the pressure from the silica sand on filter 8 is relatively small. Furthermore, because filter 8 only partially covers drain pipe 1, some of the drain pipe's small water holes 11 are protected from pressure from silica sand. This is one of the reasons why this solution effectively avoids blockage and improves drainage efficiency.

[0044] The filter screen 8 can be cleaned in a circulating manner, and during the cleaning process of the filter screen 8, there is no need to transport the silica sand in the storage area.

[0045] The bottom of the pool is a sand layer. The gentle slope 41 of the pool bottom, the side retaining wall, the high retaining wall 2, and the low retaining wall 3 are all reinforced concrete components. The pool bottom is waterproofed. The shoulder plate 5 and the steep slope 42 of the pool bottom are made of metal, which is conducive to operations such as opening holes, swinging, and installing support rods 9. The drainage pipe is a double-layer pipe, the inner layer is metal, and the outer layer is a PE plastic pipe.

[0046] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope of the appended claims.

Claims

1. A drainage system for a glass silica sand raw material storage area, characterized in that: The invention comprises a sand pool and a drainage pipe (1), wherein the sand pool comprises a high retaining wall (2), a low retaining wall (3), two side retaining walls and a pool bottom plate, wherein the side close to the high retaining wall (2) is a feeding side, and the side close to the low retaining wall (3) is a taking side, and the pool bottom plate is located at the bottom of an area enclosed by the high retaining wall (2), the low retaining wall (3) and the two side retaining walls, and the pool bottom plate comprises a gentle slope surface (41) and a steep slope surface (42), and the junction of the gentle slope surface (41) and the steep slope surface (42) is the lowest point of the pool bottom plate, and the pool bottom plate is provided with a plurality of channels, wherein the channels are ... A water collecting ditch (43) is provided at the lowest point of the pool bottom plate, the drainage pipe (1) is placed in the water collecting ditch (43), a carrying plate (5) is hingedly connected to the top of the steep slope surface (42), the water collecting ditch (43) is located between the carrying plate and the steep slope surface (42), the carrying plate can swing around the hinge point to abut against the gentle slope surface (41), the drainage pipe (1) is uniformly provided with water-passing holes (11) penetrating the inner and outer walls of the drainage pipe (1), and both ends of the drainage pipe (1) extend out of the side retaining wall; The two ends of the drainage pipe (1) are respectively rotatably connected to the two side retaining walls at the water collection ditch (43); a rotating shaft (6) is hingedly connected in the middle of the steep slope; the rotating shaft (6) is connected to the output shaft of a reduction motor (7); and a filter screen (8) connected at both ends is pulled between the rotating shaft (6) and the drainage pipe (1).

2. The drainage system for a glass silica sand raw material storage site according to claim 1, characterized in that: The pore size of the filter screen (8) is smaller than the pore size of the water-passing hole (11).

3. A drainage system for a glass silica sand raw material storage area according to claim 1 or 2, characterized in that: A cleaning port (421) is provided on the steep slope surface, and a portion of the filter screen (8) faces the cleaning port (421).

4. A drainage system for a glass silica sand raw material storage site according to claim 1 or 2, characterized in that: The drainage pipe (1) has an inclination angle of 1 to 3° with the horizontal plane.

5. A drainage system for a glass silica sand raw material storage site according to claim 1 or 2, characterized in that: A plurality of nuts are provided on the steep slope surface, and the inner threads of the nuts are connected to a support rod (9), and the inner end of the support rod (9) rests on the outer surface of the carrying plate.

6. A drainage system for a glass silica sand raw material storage site according to claim 1 or 2, characterized in that: The gradient of the gentle slope is 2 to 10 degrees.

7. A drainage system for a glass silica sand raw material storage site according to claim 1 or 2, characterized in that: The steep slope has a gradient of 30 to 80 degrees.

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