Silica sand desliming device
By combining the design of the material silo, conveying pipe, water conveying pipe and supporting mud discharge components, the natural separation of silica sand and mud is achieved by using gravity and water flow, which solves the problem of screen clogging, improves the desliming efficiency and reduces costs.
Patent Information
- Application Number
- CN202423018930.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-11-21
- Estimated Expiration
- 2034-12-06
AI Technical Summary
In existing silica sand desliming devices, the screens are easily clogged by large particles or debris, which affects desliming efficiency and increases production costs and operational difficulty.
The design incorporates a material silo, conveying pipe, water conveying pipe, and supporting mud discharge components. It utilizes gravity and water flow to achieve natural separation of silica sand and mud, thus avoiding screen clogging.
It improves desliming efficiency, reduces production costs and operational difficulty, and ensures effective separation of silica sand and mud.
Smart Images
Figure CN223570909U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a desliming device technical field especially relates to a silica sand desliming device. BACKGROUND
[0002] In the process of processing of silica stone, the silica stone is ground into small sand particles, and the sand particles need to be washed. Because the silica stone will be covered with a large amount of soil in the process of mining, it needs to be washed with water. The desliming device is usually used to complete the desliming treatment of silica sand, but the silica sand device in the prior art usually screens the silica sand through screens with different hole diameters to separate silica sand of different particle sizes and mud. The material moves on the screen surface through the vibration of the vibrating screen, the particles smaller than the screen hole size pass through the screen hole, and the particles larger than the screen hole size remain on the screen surface, and silica sand of different particle size ranges is separated. However, in the screening process, the screen is easily blocked by large particles or impurities, affecting the desliming efficiency, and the screen needs to be cleaned regularly, increasing the production cost and operation difficulty. SUMMARY
[0003] The utility model aims at providing a silica sand desliming device for simply separating silica sand and mud, avoiding the problem of screen blockage, and reducing production cost and operation difficulty.
[0004] In order to achieve the above purpose, the utility model provides the following technical scheme:
[0005] A silica sand desliming device, comprising:
[0006] The material container is used to contain the mud-water-sand mixture, and the bottom of the material container is provided with a sand outlet for passing silica sand;
[0007] The discharge pipe is arranged at the bottom of the material container and is in communication with the sand outlet;
[0008] The material conveying pipe has one end located in the material container and is used to input the mud-water-sand mixture into the material container;
[0009] The water conveying pipe has a water outlet located in the material container and is used to introduce an external water source into the material container, and the discharge amount of the discharge pipe is less than the sum of the input amount of the material conveying pipe and the input amount of the water conveying pipe;
[0010] The support and mud discharge assembly is located in the material container, and has a connected bottom plate and a side plate, the bottom plate is fixedly connected around the outer wall of the material container, and the side plate surrounds the bottom plate, the bottom plate, the side plate and the outer wall of the material container form an overflow groove, the bottom plate is provided with a first through hole in communication with the overflow groove, and the first through hole is used to connect the desliming pipe and discharge the mud-water mixture.
[0011] Optionally, in the silica sand desliming device, the end port of the material conveying pipe located at the material storage bin is closed, and a plurality of second through holes are formed in the side wall of the material conveying pipe.
[0012] Optionally, in the silica sand desliming device, the plurality of second through holes are uniformly formed in the side wall of the material conveying pipe along the circumferential direction of the material conveying pipe.
[0013] Optionally, in the silica sand desliming device, the extension line of the axis of the material conveying pipe passes through the center of the bottom surface of the material storage bin.
[0014] Optionally, in the silica sand desliming device, the silica sand desliming device further comprises a baffle, the baffle is suspended at the sand outlet by a support rod, the baffle is coaxial with the material conveying pipe, the diameter of the baffle is greater than the diameter of the material conveying pipe and less than the diameter of the sand outlet, and the diameter of the baffle is greater than the diameter of the discharge pipe.
[0015] Optionally, in the silica sand desliming device, the water outlet of the water conveying pipe is located below the material conveying pipe, and the extension line of the axis of the water conveying pipe is offset from the baffle.
[0016] Optionally, in the silica sand desliming device, the diameter of the baffle is 550mm-650mm, and the inner diameter of the discharge pipe is 90mm-110mm.
[0017] The inner diameter of the material conveying pipe is 300mm-500mm, the inner diameter of the water conveying pipe is 90mm-110mm, and the pipe diameter of the first through hole is 180mm-210mm.
[0018] Optionally, in the silica sand desliming device, the top edge of the material storage bin is 150mm-500mm lower than the top edge of the side plate, the bottom plate is 100mm-200mm lower than the top edge of the material storage bin, and the radial width of the overflow tank is 250mm-350mm.
[0019] Optionally, in the silica sand desliming device, the first through hole has a plurality of first through holes, and the plurality of first through holes are symmetrically formed in the bottom plate with the center of the material storage bin as the center.
[0020] Optionally, in the silica sand desliming device, the material storage bin is a conical cylinder.
[0021] Compared with the prior art, the siliceous sand desliming device is used to realize siliceous sand desliming, the mud water sand mixture enters the material storage bin through the material conveying pipe, the water conveying pipe connects the water source to the material storage bin, the water source mixes with the mud water sand mixture, the mixture is diluted, and the state of the siliceous sand and the mud in the water is separated. Since the density of the siliceous sand is large, the siliceous sand gradually sinks under the action of gravity, sinks to the sand outlet at the bottom of the material storage bin, reaches the discharge pipe, and is output by the discharge pipe to realize separation and collection of the siliceous sand, and the mud is suspended in the water or flows with the water flow. When the siliceous sand desliming is performed, the flow of the water source connected outside and the mud water sand mixture entering the material storage bin is greater than the flow of the mud water sand mixture flowing out of the material storage bin, so that the water level of the mud water mixture in the material storage bin rises, and when the mud water mixture in the material storage bin rises to the edge of the material storage bin and overflows, since the overflow groove is surrounded between the side plate and the bottom plate supporting the desliming assembly and the outer wall of the material storage bin, the mud water mixture in the material storage bin overflows into the overflow groove, and then the mud water mixture is discharged through the first through hole in the bottom plate. The siliceous sand desliming device utilizes the action of gravity and water flow, separates and discharges mud through the sand outlet at the bottom of the material storage bin and the bottom plate through hole of the desliming assembly, realizes natural separation of the siliceous sand and the mud, effectively avoids the problem of screen clogging, improves the desliming efficiency, and reduces the production cost and operation difficulty. BRIEF DESCRIPTION OF DRAWINGS
[0022] The drawings described herein are used to provide further understanding of the present application, constitute a part of the present application, and the illustrative embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitations on the present application. In the drawings:
[0023] Figure 1 A front view schematic diagram of a siliceous sand desliming device provided for the embodiments of the present application;
[0024] Figure 2 A top view schematic diagram of a siliceous sand desliming device provided for the embodiments of the present application;
[0025] Figure 3 A structure diagram of a siliceous sand desliming device provided for the embodiments of the present application.
[0026] Reference signs:
[0027] 1 is a material storage bin, 110 is a sand outlet, 2 is a material conveying pipe, 210 is a second through hole, 3 is a water conveying pipe, 4 is a desliming assembly, 410 is a first through hole, 420 is a bottom plate, 430 is a side plate, 5 is a baffle, 510 is a supporting rod, 6 is a discharge pipe, and 7 is a desliming pipe. DETAILED DESCRIPTION
[0028] In order to make the technical problems, technical solutions and beneficial effects of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and should not be used to limit the present application.
[0029] It should be noted that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.
[0030] In addition, the terms "first", "second" are only for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more than two, unless otherwise explicitly specified and limited. The meaning of "several" is one or more than one, unless otherwise explicitly specified and limited.
[0031] In the description of the present application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be understood as limiting the present application.
[0032] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0033] Please refer to Figure 1The silicon sand desliming device provided by the embodiment of the utility model includes: a material containing bin 1, a discharging pipe 6, a material conveying pipe 2, a water conveying pipe 3 and a supporting and sludge discharging assembly 4, wherein the material containing bin 1 is used for containing a mixture of mud, water and sand, a sand outlet 110 is formed in the bottom of the material containing bin 1, and the sand outlet 110 is used for passing silicon sand; the discharging pipe 6 is arranged at the bottom of the material containing bin 1, and the discharging pipe 6 is communicated with the sand outlet 110; one end of the material conveying pipe 2 is located in the material containing bin 1, and the material conveying pipe 2 is used for inputting the mixture of mud, water and sand into the material containing bin 1; the water outlet of the water conveying pipe 3 is located in the material containing bin 1, one end of the water conveying pipe 3 is used for connecting an external water source to the material containing bin 1, and the discharging capacity of the discharging pipe 6 is less than the sum of the input capacity of the material conveying pipe 2 and the input capacity of the water conveying pipe 3; the material containing bin 1 is located in the supporting and sludge discharging assembly 4, the supporting and sludge discharging assembly 4 has a bottom plate 420 and a side plate 430 connected with each other, the bottom plate 420 surrounds the outer wall of the material containing bin 1 and is fixedly connected, the side plate 430 surrounds the bottom plate 420, and the bottom plate 420, the side plate 430 and the outer wall of the material containing bin 1 form an overflow groove, the bottom plate 420 is provided with a first through hole 410 communicated with the overflow groove, and the first through hole 410 is used for connecting a desliming pipe 7 and discharging the mixture of mud and water.
[0034] In specific implementation: when the silicon sand desliming device is used to realize silicon sand desliming, the mixture of mud, water and sand enters the material containing bin 1 through the material conveying pipe 2, the water conveying pipe 3 connects the external water source to the material containing bin 1, the water source is mixed with the mixture of mud, water and sand, the mixture is diluted, and the state of silicon sand and mud in water is separated. Since the density of silicon sand is large, the silicon sand gradually sinks under the action of gravity, reaches the sand outlet 110 in the bottom of the material containing bin 1, reaches the discharging pipe 6 and is output by the discharging pipe 6 to realize separation and collection of silicon sand, and the mud is suspended in water or flows with water. When the silicon sand desliming is performed, the flow of the external water source and the mixture of mud, water and sand entering the material containing bin 1 is greater than the flow of the mixture of mud, water and sand flowing out of the material containing bin 1, so the water level of the mixture of mud and water in the material containing bin 1 rises, and when the mixture of mud and water in the material containing bin 1 rises to the edge of the material containing bin 1 and overflows, since the overflow groove formed by the bottom plate 420 between the side plate 430 of the supporting and sludge discharging assembly 4 and the outer wall of the material containing bin 1, the mixture of mud and water in the material containing bin 1 overflows into the overflow groove, and then the mixture of mud and water is discharged through the first through hole in the bottom plate 420. The silicon sand desliming device utilizes the action of gravity and water flow, separates and discharges sludge through the sand outlet 110 in the bottom of the material containing bin 1 and the through hole in the bottom plate 420 of the supporting and sludge discharging assembly 4, realizes natural separation of silicon sand and mud, effectively avoids the problem of screen clogging, improves the desliming efficiency, reduces the production cost and the operation difficulty.
[0035] As a possible implementation manner, as shown in Figure 1As shown, one end of the material conveying pipe 2 is located inside the material container 1, and the end port is closed, which means that the material will not be directly sprayed out of the port, but will enter the material container 1 through the second through holes 210 opened in the side wall of the material conveying pipe 2, providing conditions for the reasonable distribution of the material in the material container 1.
[0036] When the slurry sand mixture is conveyed into the material conveying pipe 2, due to the closed port, the slurry sand mixture will enter the material container 1 through the second through holes 210 in the side wall under the action of pressure. This input method allows the material to enter the material container 1 in a dispersed manner, avoiding local accumulation caused by concentrated input. The presence of multiple second through holes 210 allows the material to be evenly distributed within the material container 1 within a certain range. If there is only one input port, the material may accumulate in a certain area of the material container 1, but through multiple through holes, the material can be more widely distributed in the horizontal direction, which is beneficial to the subsequent desliming process, such as uniform sedimentation of silica sand in water and uniform suspension of mud, which can ensure that the silica sand has enough time and space to sediment, and will not affect the sedimentation speed due to local accumulation. At the same time, after water is injected through the water conveying pipe 3, the separation effect of silica sand and mud is better. The silica sand can be more evenly deposited and pass through the sand outlet 110, and the mud can be more stably suspended in the water and discharged through the support and mud discharge assembly 4, thereby improving the silica sand desliming effect of the entire device.
[0037] Further, in some embodiments, as shown in Figure 1 As shown, multiple second through holes 210 are uniformly opened in the side wall of the material conveying pipe 2 along the circumference of the material conveying pipe 2. That is, these second through holes 210 are uniformly distributed in the circumferential direction of the material conveying pipe 2. This layout makes the output capacity of the material conveying pipe 2 at each position in the circumferential direction the same. When the slurry sand mixture flows in the material conveying pipe 2, the mixture will be discharged into the material container 1 through these circumferentially uniformly distributed second through holes 210 due to the action of internal pressure. In the circumferential direction, due to the uniform distribution of the through holes, the material will flow out of the material conveying pipe 2 at the same rate from all directions. This uniform material output method can avoid excessive accumulation of material near a certain side wall of the material container 1, ensuring that the material can be evenly spread on the horizontal plane, creating good conditions for the subsequent desliming process.
[0038] Exemplarily, the plurality of second through holes 210 are uniformly arranged on the side wall of the material conveying pipe 2 in the circumferential direction and the axial direction of the material conveying pipe 2. That is, in the circumferential direction of the material conveying pipe 2, the plurality of second through holes 210 are equidistantly distributed, ensuring that the flow of the material into the material storage bin 1 from the circumferential direction is uniform. The second through holes 210 are also uniformly arranged in the axial direction of the material conveying pipe 2, so that the material can also uniformly enter the material storage bin 1 in the axial range of the material conveying pipe 2. The uniform distribution in the axial direction in combination with the uniform distribution in the axial direction forms a three-dimensional uniform material distribution system.
[0039] In the working process, when the slurry-sand mixture flows in the material conveying pipe 2, due to the uniform distribution of the second through holes 210 in the circumferential direction and the axial direction, the material is uniformly input into the material storage bin 1 from the side wall of the material conveying pipe 2 in all directions. From the circumferential direction, the through holes at each angle simultaneously output the material, so that the material is uniformly spread on the cross section of the material storage bin 1. From the axial direction, the through holes at different positions along the length direction of the material conveying pipe 2 also sequentially input the material. This uniform material input method can establish a dynamic balance of the material distribution state in the material storage bin 1. In the continuous material input process, due to the uniform input in the axial direction and the circumferential direction, the newly input material can be uniformly mixed with the existing material, maintaining the uniformity of the material distribution in the entire material storage bin 1. The all-directional uniform material input reduces the wear and damage of the equipment caused by excessive local stress. Neither the bottom, the side wall, nor other parts of the material storage bin 1 will bear excessive pressure or impact force due to local material accumulation. This uniform material distribution method can disperse the wear of the equipment to each part, thereby effectively prolonging the overall service life of the equipment.
[0040] As a possible implementation manner, the extension line of the axis of the material conveying pipe 2 passes through the center of the bottom surface of the material storage bin 1.
[0041] The beneficial effect of such an arrangement is that, when the extension line of the axis of the material conveying pipe 2 passes through the center of the bottom surface of the material storage bin 1, when the slurry-sand mixture is input into the material storage bin 1 through the material conveying pipe 2, the material will spread to the periphery with the center of the bottom surface of the material storage bin 1 as the center, so that the material forms a relatively symmetrical distribution at the bottom of the material storage bin 1. Such an arrangement can promote the orderliness in the sedimentation process. In the subsequent sedimentation process, the silica sand sinks under the action of gravity. Since the material is initially distributed symmetrically with the center of the bottom surface as the center, the silica sand is more likely to gather at the center area of the sand outlet 110. This orderly sedimentation process helps to improve the efficiency of the silica sand passing through the sand outlet 110, avoiding the situation that part of the sand outlet 110 is blocked or the silica sand is unevenly accumulated at the bottom of the material storage bin 1 due to uneven material distribution.
[0042] Exemplarily, the outer diameter of the material container 1 is 10-15 times, for example, 11 times, 12 times, 13 times, etc., of the pipe diameter of the material conveying pipe 2. A larger pipe diameter is beneficial to achieve a better desliming effect. Compared with the material conveying pipe 2, the larger material container 1 provides a longer residence time and sufficient separation space for the material, so that the silica sand can be better separated from the mud, the mud content in the final product is reduced, and the purity of the silica sand is further improved.
[0043] As a possible implementation, as shown in Figure 2 The silica sand desliming device further includes a baffle 5, which is suspended at the sand outlet 110 by a support rod 510. The baffle 5 is coaxial with the material conveying pipe 2, and the diameter of the baffle 5 is greater than the diameter of the material conveying pipe 2 and less than the diameter of the sand outlet 110. The diameter of the baffle 5 is greater than the diameter of the discharge pipe 6.
[0044] Exemplarily, the bottom of the silica sand desliming device is fixedly provided with a baffle 5. The fixed connection can be welding, bolt connection, etc. In the embodiments provided in the present application, as shown in Figure 2 The baffle 5 is suspended and welded at the sand outlet 110 by a plurality of support rods 510, ensuring the stability of the position of the baffle 5 during the operation of the device. In this way, when the mixture of muddy water and sand enters the material container 1 from the material conveying pipe 2, the baffle 5 is coaxially arranged with the material conveying pipe 2, the extended line of the axis of the material conveying pipe 2 intersects the baffle 5, and the diameter of the baffle 5 is greater than the diameter of the material conveying pipe 2 and less than the diameter of the sand outlet 110. The material will directly impact on the baffle 5. The baffle 5 changes the flow direction of the material, so that the material is dispersed in all directions. This dispersion makes the distribution of the material at the bottom of the material container 1 more uniform, avoiding the concentration of the material in a certain area. At the same time, since the diameter of the baffle 5 is greater than the diameter of the discharge pipe 6, the presence of the baffle 5 makes the mixture of mud and sand unable to flow out from the middle part of the sand outlet 110, but stays in the material container 1 for a period of time. During this period, the water introduced by the water conveying pipe 3 can impact on the mixture of mud and sand, further promoting the separation of the mud and the silica sand. This process of staying and water impact helps to improve the desliming effect. This process improves the quality of desliming, reduces the difficulty and cost of subsequent treatment.
[0045] As a possible implementation, as shown in Figure 1 The water outlet of the water conveying pipe 3 is located below the material conveying pipe 2, and the extended line of the axis of the water conveying pipe 3 is offset from the baffle 5. That is, the water outlet position of the water conveying pipe 3 in the material container 1 is not in the same straight line with the baffle 5, so that the water flow will not directly impact on the baffle 5.
[0046] In a specific implementation, the external water source is first introduced into the material container 1, and the flow rate of the external water source entering the material container 1 is greater than the flow rate of the external water source flowing out of the material container 1. After a period of time, a certain height of water is accumulated in the lower part of the material container 1. Then, the slurry-sand mixture is introduced into the material container 1 to ensure that the slurry-sand mixture does not directly flow out of the sand outlet 110.
[0047] When the external water source enters the material container 1 through the water inlet pipe 3, the water flow does not directly impact the baffle 5 due to the misalignment of the axis extension line and the baffle 5. Instead, the water flow works at other positions within the material container 1. The water flow can dilute and stir the slurry-sand mixture in the material container 1, promoting the separation of silica sand and mud. This independent water flow action can avoid the situation of local water flow disorder or excessive accumulation of materials near the baffle 5 caused by the direct impact of the water flow on the baffle 5. The water flow can be more evenly distributed within the material container 1 and fully contact with the materials, improving the desliming effect.
[0048] Further, as shown in Figure 1 , the water outlet of the water inlet pipe 3 is lower than the second through hole 210 of the material inlet pipe 2. When the water outlet of the water inlet pipe 3 is lower than the second through hole of the material inlet pipe 2, the water flowing out of the water inlet pipe 3 can directly impact the slurry-sand mixture discharged from the second through hole 210. This impact action enables the materials and water to mix rapidly after entering the material container 1, improving the mixing efficiency.
[0049] Exemplarily, as shown in Figure 2 , the number of first through holes 410 is multiple. During the operation of the silica sand desliming device, when the water level of the slurry mixture in the material container 1 rises to a certain height, it will overflow the material container 1 and enter the support and mud discharge assembly 4. At this time, the multiple first through holes 410 become the discharge channels for the slurry mixture. Due to the multiple through holes, the discharge speed and flow rate of the slurry are increased, avoiding excessive accumulation of the slurry in the material container 1 and affecting the desliming effect. The multiple first through holes 410 can enable the slurry mixture to be discharged simultaneously from different positions, avoiding the problem of local blockage or poor drainage that may be caused by a single through hole. If there is only one through hole, when the solid particles in the slurry are large or the flow rate is large, the through hole is likely to be blocked. However, multiple through holes reduce this risk.
[0050] As a possible implementation, the diameter of the baffle 5 is 550mm-650mm, the inner diameter of the discharge pipe 6 is 90mm-110mm; the inner diameter of the material conveying pipe 2 is 300mm-500mm, the inner diameter of the water conveying pipe 3 is 90mm-110mm, and the pipe diameter of the first through hole is 180mm-210mm. That is, the diameter of the baffle 5 is in the range of 550mm-650mm, which can be 550mm, 560mm, 570mm, etc. In cooperation therewith, the diameter of the discharge pipe 6 is in the range of 90mm-110mm, which can also be 90mm, 95mm, 100mm, etc. The inner diameter of the material conveying pipe 2 is 300mm-500mm, the inner diameter of the water conveying pipe 3 is 90mm-110mm, and the pipe diameter of the first through hole is 180mm-210mm. The beneficial effects produced by such arrangement are as described above, which will not be repeated here.
[0051] As a possible implementation, as shown in Figure 1 , the height D1 of the top edge of the material container 1 below the top edge of the side plate 430 is 150mm-500mm; the height D2 of the bottom plate 420 below the top edge of the material container 1 is 100mm-200mm; and the radial width of the overflow chute is 250mm-350mm. The height difference between the top edge of the material container 1 and the top edge of the side plate 430 is 150mm-500mm, i.e. the height difference can be 150mm, 250mm, 350mm, etc. The height difference between the bottom plate 420 and the top edge of the material container 1 is 100mm-200mm; and the radial width of the overflow chute is 250mm-350mm. The beneficial effects produced by such arrangement are as described above, which will not be repeated here.
[0052] Further, as shown in Figure 2 , the first through hole has a plurality of first through holes 410 symmetrically arranged on the bottom plate 420 with the center of the material container 1. The plurality of first through holes 410 are symmetrically arranged on the bottom plate 420 with the center of the material container 1. The arrangement of the plurality of first through holes 410 corresponds to the center position of the material container 1, so that the slurry mixture can pass through the through holes more uniformly during discharge. At the same time, in cooperation with the outer wall of the material container 1 and the side plate 430 supporting the sludge discharging assembly 4, a closed space is formed to ensure that the slurry mixture can flow smoothly from the material container 1 into the sludge discharging assembly 4 and be discharged through the first through hole 410.
[0053] The beneficial effect of the arrangement is that the symmetrically distributed first through holes 410 help to form a stable flow field in the material containing bin 1, and when the water inlet pipe 3 injects water and the material inlet pipe 2 injects the mixture of slurry and sand, the symmetrically distributed through holes can keep the water flow and the material flow in a laminar state, reduce the generation of turbulence and vortex, improve the stability in the desliming process, and the stable flow field is conducive to the sedimentation of silica sand and the suspension of sludge, so that the silica sand can be more smoothly discharged through the sand outlet 110, and the sludge can be better mixed with water and discharged through the first through holes 410 to support the sludge discharge assembly 4. At the same time, the desliming efficiency of the whole device is improved.
[0054] As a possible implementation, as shown in Figure 1 The material containing bin 1 is in a conical cylinder shape, that is, the material containing bin 1 has a circular bottom surface and a side surface gradually tapering towards the circular bottom surface, forming a shape similar to a cone.
[0055] The beneficial effect of the arrangement is that the side surface of the conical cylinder-shaped material containing bin 1 is inclined, and when the mixture of slurry and sand enters the material containing bin 1, it naturally flows to the bottom under the action of gravity, and the flow rate of the mixture of slurry and sand gradually increases as it approaches the sand outlet, which is conducive to the sedimentation and separation of silica sand. The conical shape of the material containing bin 1 can make the silica sand more easily concentrate near the sand outlet 110 at the bottom, improving the discharge efficiency of the silica sand, and the sludge will be suspended in the water under the action of the water flow and eventually discharged through the support sludge discharge assembly 4. The conical cylinder-shaped material containing bin 1 can enhance the mixing effect of the material and water, and when the water inlet pipe 3 injects water, the inclined side surface can cause the water flow to rotate and turbulent to some extent, further promoting the separation of sludge and silica sand, and helping to improve the efficiency and quality of desliming.
[0056] In the description of the above embodiments, specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.
[0057] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto, and any skilled person in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.
Claims
1. A silica sand desliming device, characterized by, include: A material storage silo is used to hold a mixture of mud, water and sand. The bottom of the material storage silo is provided with a sand outlet for passing silica sand. A discharge pipe is provided at the bottom of the material hopper, and the discharge pipe is connected to the sand outlet; A conveying pipe, one end of which is located inside the silo, is used to feed a mixture of mud, water and sand into the silo; A water supply pipe, the outlet of which is located inside the material storage silo, is used to supply an external water source into the material storage silo. The discharge volume of the discharge pipe is less than the sum of the input volume of the material supply pipe and the input volume of the water supply pipe. A sludge discharge assembly is provided, wherein the silo is located within the sludge discharge assembly. The sludge discharge assembly has a connected bottom plate and side plates. The bottom plate surrounds the outer wall of the silo and is fixedly connected. The side plates surround the bottom plate. The bottom plate, the side plates, and the outer wall of the silo form an overflow channel. The bottom plate has a first through hole communicating with the overflow channel. The first through hole is used to connect a sludge removal pipe and discharge the mud-water mixture.
2. The silica sand desliming device of claim 1, wherein The end of the conveying pipe located in the hopper is closed, and the side wall of the conveying pipe is provided with a plurality of second through holes.
3. The silica sand desliming device of claim 2, wherein, The plurality of second through holes are evenly opened along the circumference of the conveying pipe on the side wall of the conveying pipe.
4. The silica sand desliming device of claim 1, wherein, The extension line of the axis of the conveying pipe passes through the center of the bottom surface of the hopper.
5. The silica sand desliming device of claim 1, wherein, The silica sand desliming device also includes a baffle plate, which is suspended at the sand outlet by a support rod. The baffle plate is coaxial with the conveying pipe. The diameter of the baffle plate is larger than the diameter of the conveying pipe and smaller than the diameter of the sand outlet. The diameter of the baffle plate is larger than the diameter of the discharge pipe.
6. The silica sand desliming device of claim 5, wherein, The outlet of the water supply pipe is located below the material supply pipe, and the extension line of the axis of the water supply pipe is offset from the baffle.
7. The silica sand desliming device of claim 5, wherein, The diameter of the baffle is 550mm to 650mm, and the inner diameter of the discharge pipe is 90mm to 110mm. The inner diameter of the feed pipe is 300mm to 500mm, the inner diameter of the water pipe is 90mm to 110mm, and the diameter of the first through hole is 180mm to 210mm.
8. The silica sand desliming device of claim 1, wherein, The top edge of the hopper is 150mm-500mm lower than the top edge of the side plate; the bottom plate is 100mm-200mm lower than the top edge of the hopper; the radial width of the overflow trough is 250mm-350mm.
9. The silica sand desliming device of claim 1, wherein, There are multiple first through holes, which are symmetrically opened on the bottom plate with respect to the center of the material storage bin.
10. The silica sand desliming device of claim 1, wherein, The silo is conical in shape.