A concentrator flow guide

Abstract

The utility model discloses a concentrator flow guide device belongs to the field of concentrator, the device includes the flow guide plate and support plate of setting in the front side of overflow weir, and the liquid flow and fine particle are screened through flow guide plate and support plate in the front side of overflow weir, and the flow guide plate is set to the combination of two arc plates, two horizontal blocks and two guide arcs, wherein the arc plate edge extension line and the guide arc edge intersection, the liquid flow will be guided to the guide arc position under the action of arc plate, and then is flowed to the overflow weir through the water seepage groove under the action of guide arc, and the liquid flow direction changes in this process, and fine particle is thrown on the guide arc surface or moves along the guide arc to the middle part of concentrator body when the liquid flow direction changes due to inertia, and the longer flow distance can make part fine particle self -precipitation, thereby reducing the deposition of fine particle on the edge of overflow weir, and guiding fine particle to flow to the middle part of concentrator body and deposit and discharge, and the fine particle that can flow under the action of the material blocking component that stays on the edge of flow guide plate is avoided and deposits on the edge.

Description

Technical Field

[0001] This utility model relates to the field of concentrators, and in particular to a concentrator flow guiding device. Background Technology

[0002] As a key piece of equipment for solid-liquid separation, the thickener's core objective is to achieve solid-liquid separation through gravity sedimentation. During operation, a certain amount of flocculant is added to the slurry to be thickened, causing the mineral particles in the slurry to form flocs. These flocs and solid particles then settle, while the liquid flows into the overflow weir. To optimize the fluid path and sedimentation environment, the thickener's interior is typically equipped with flow-guiding structures such as baffles.

[0003] However, the existing thickener's flow guiding structure is mainly set in the center of the thickener to separate the material from the liquid and ensure the thickening effect. However, when the slurry settles inside the thickener, some fine particles will move with the liquid flow towards the overflow weir. The liquid flow velocity at the overflow weir is relatively high, and fine particles are easily carried into the overflow weir by the liquid flow. At the same time, some fine particles that are not carried into the overflow weir will settle at the edge of the overflow weir. Fine particles at this position are difficult to move to the center of the thickener to settle and be discharged, and may be carried into the subsequent liquid flow.

[0004] In the existing technology, the flow guiding structure of the thickener is set in the center, which makes it difficult to affect the particle settling at the overflow weir. There is a problem that fine particles carried by the liquid flow to the edge of the overflow weir are discharged with the liquid flow or deposited at the edge. Utility Model Content

[0005] This invention provides a flow guiding device for a thickener, which can solve the problem in the prior art where the flow guiding structure of the thickener is set in the center, making it difficult to affect the particle settling at the overflow weir position. This results in fine particles being carried to the edge of the overflow weir by the liquid flow being discharged with the liquid flow or deposited at the edge.

[0006] A flow guiding device for a thickener includes an overflow weir fixedly disposed on the surface of the thickener body, and a flow guiding mechanism is disposed between the thickener body and the overflow weir, the flow guiding mechanism comprising: Several guide plates and several support plates are fixedly installed on the surface of the thickener body. The guide plates are arranged in a ring array on the surface of the thickener body, and adjacent guide plates are fixedly installed inside the support plates by fixing components. The projection of the guide plates on the side wall of the thickener covers the projection of the overflow weir. The guide plate includes two symmetrically arranged arc-shaped plates, which are fixedly set with a support plate. A horizontal block is fixedly connected to the end of each arc-shaped plate. Several seepage grooves are opened on the surface of each horizontal block. A guide arc is fixedly connected to the end of each horizontal block. The guide arc covers a part of the horizontal block. The extension line of the edge of the arc-shaped plate intersects with the edge of the guide arc. Material-blocking assemblies are disposed on both sides of the arc-shaped plate, and the material-blocking assemblies are used to guide the flow of fine particles.

[0007] Optionally, the surface of the arc-shaped plate is provided with a plurality of guide grooves, the edges of which are all spiral-shaped, and the distance between the guide groove and the concentrator body on the side closer to the horizontal block is smaller than the distance between the guide groove and the concentrator body on the other side.

[0008] Optionally, the guide groove has a greater depth on the side closer to the horizontal block than on the other side.

[0009] Optionally, the fixing component includes a through groove formed on the surface of the arc-shaped plate, and a fixing rod is threadedly connected inside the concentrator body, the fixing rod being adapted to the through groove.

[0010] Optionally, open grooves are provided on the surface of the arc-shaped plates on both sides of a single guide vane, with the edge projection of one side of the arc-shaped plate being concave and the edge projection of the other side of the arc-shaped plate being convex.

[0011] Optionally, the end of the fixing rod is provided with a thread to connect with the concentrator body.

[0012] Optionally, the baffle assembly includes a plurality of diverting blocks and a plurality of inclined plates rotatably disposed on the surface of the concentrator body. The diverting blocks are located between the overflow weir and the guide plates. The projection of the diverting blocks toward the guide plates covers the bottom of the horizontal blocks. The cross-section of the diverting blocks is U-shaped.

[0013] Optionally, the two drainage blocks and the two inclined plates are grouped together, and the two drainage blocks and the two inclined plates in the same group are symmetrically arranged relative to the guide arc.

[0014] Optionally, both the diversion block and the inclined plate are fixedly connected to adjusting gears. Two adjusting rings are rotatably connected inside the concentrator body. Each adjusting ring is fixedly connected to a number of meshing teeth. The meshing teeth are divided into two groups. Within the same group, the meshing teeth are arranged in a ring array inside the adjusting ring. The meshing teeth mesh with the adjusting gears. A drive gear is slidably connected inside the concentrator body. The projection of the drive gear toward the top of the concentrator body meshes with the projection of the meshing teeth toward the top of the concentrator body.

[0015] Optionally, a cylinder is fixedly connected to the surface of the concentrator body, and a control rod is fixedly connected to the end of the piston rod inside the cylinder, and the control rod is rotatably connected to the drive gear.

[0016] This utility model provides a flow guiding device for a thickener, including a guide plate and a support plate disposed in front of the overflow weir. The guide plate and support plate screen the liquid flow and fine particles in front of the overflow weir. The guide plate is configured as a combination of two arc-shaped plates, two horizontal blocks, and two guide arcs, wherein the extended lines of the edges of the arc-shaped plates intersect the edges of the guide arcs. The liquid flow is guided to the position of the guide arcs by the action of the arc plates, and then flows to the overflow weir through the seepage channel under the action of the guide arcs. During this process, the direction of the liquid flow changes. When the direction of the liquid flow changes, the fine particles are thrown onto the surface of the guide arcs or move towards the middle of the thickener body along the guide arcs due to inertia. The longer flow distance will cause some fine particles to settle on their own, thereby reducing the deposition of fine particles at the edge of the overflow weir and guiding the fine particles to flow to the middle of the thickener body for sedimentation and discharge. Furthermore, the fine particles that stay at the edge of the guide plate can flow under the action of the baffle assembly to avoid deposition at the edge. Attached Figure Description

[0017] Figure 1 A schematic diagram of a flow guiding device for a concentrator provided by this utility model; Figure 2 A three-dimensional structural cross-sectional view of the overflow weir provided by this utility model; Figure 3 A three-dimensional structural view of the arc-shaped plate provided by this utility model; Figure 4 A three-dimensional view of the inclined plate provided by this utility model; Figure 5 An exploded three-dimensional view of the drainage block provided by this utility model; Figure 6 Provided by this utility model Figure 5 Enlarged view of the local structure at point A in the middle.

[0018] Explanation of reference numerals in the attached figures: 1. Concentrator body; 2. Overflow weir; 31. Support plate; 32. Curved plate; 33. Horizontal block; 34. Drainage groove; 35. Guide arc; 36. Guide channel; 41. Through slot; 42. Fixing rod; 51. Drainage block; 52. Inclined plate; 53. Adjusting gear; 54. Adjusting ring; 55. Meshing teeth; 56. Drive gear; 57. Control lever. Detailed Implementation

[0019] The specific embodiments of this utility model are described in detail below, but it should be understood that the protection scope of this utility model is not limited to the specific embodiments.

[0020] like Figures 1 to 6As shown in the figure, an embodiment of the present invention provides a flow guiding device for a thickener, including an overflow weir 2 fixedly disposed on the surface of the thickener body 1, and a flow guiding mechanism disposed between the thickener body 1 and the overflow weir 2, the flow guiding mechanism including: A plurality of guide plates and a plurality of support plates 31 are fixedly installed on the surface of the thickener body 1. The plurality of guide plates are arranged in a ring array on the surface of the thickener body 1. Adjacent guide plates are fixedly installed inside the support plates 31 by fixing components. The projection of the guide plates on the side wall of the thickener covers the projection of the overflow weir 2 on the side wall of the thickener. The guide plate includes two symmetrically arranged arc-shaped plates 32, which are fixedly arranged with the support plate 31. Horizontal blocks 33 are fixedly connected to the ends of the arc-shaped plates 32. A plurality of seepage grooves 34 are opened on the surface of the horizontal blocks 33. Guide arcs 35 are fixedly connected to the ends of the horizontal blocks 33. The guide arcs 35 cover a part of the horizontal blocks 33. The extension line of the edge of the arc-shaped plate 32 intersects the edge of the guide arc 35. A baffle assembly is disposed on both sides of the arc-shaped plate 32, and the baffle assembly is used to guide the flow of fine particles; In summary, the present invention provides a flow guiding device for a thickener, comprising a guide plate and a support plate 31 disposed in front of the overflow weir 2. The guide plate and support plate 31 screen the liquid flow and fine particles in front of the overflow weir 2. The guide plate is configured as a combination of two arc-shaped plates 32, two horizontal blocks 33, and two guide arcs 35, wherein the extended edge of the arc-shaped plate 32 intersects the edge of the guide arc 35. The liquid flow is guided to the position of the guide arc 35 under the action of the arc plate 32, and then flows to the overflow weir 2 through the seepage channel 34 under the action of the guide arc 35. During this process, the direction of the liquid flow changes. When the direction of the liquid flow changes, the fine particles are thrown onto the surface of the guide arc 35 or move towards the middle of the thickener body 1 along the guide arc 35 due to inertia. The longer flow distance will cause some fine particles to settle on their own, thereby reducing the deposition of fine particles at the edge of the overflow weir 2 and guiding the fine particles to the middle of the thickener body 1 for sedimentation and discharge. Furthermore, the fine particles that stay at the edge of the guide plate can flow under the action of the baffle assembly to avoid deposition at the edge. In some specific implementations, the surface of the arc plate 32 is provided with a plurality of guide grooves 36, the edges of which are all spiral-shaped. The distance between the guide groove 36 and the concentrator body 1 on the side closer to the horizontal block 33 is smaller than the distance between the guide groove 36 and the concentrator body 1 on the other side. The guide grooves 36 can guide the liquid flow to slide on the surface of the horizontal block 33 and limit the area where the liquid flow is directed toward the overflow weir 2. In a further embodiment, the depth of the guide groove 36 on the side near the horizontal block 33 is greater than the depth on the other side; by continuously increasing the depth, fine particles are kept in the area near the edge of the horizontal block 33, avoiding fine particles being repeatedly impacted by the liquid flow at the edge of the arc-shaped block; In some specific implementations, the fixing component includes a through groove 41 formed on the surface of the arc plate 32. Open grooves are formed on the surfaces of the arc plates 32 on both sides of a single guide plate. The edge projection of one side of the arc plate 32 is concave, and the edge projection of the other side of the arc plate 32 is convex. A fixing rod 42 is threadedly connected inside the concentrator body 1. The fixing rod 42 is adapted to the through groove 41. In a further embodiment, the end of the fixing rod 42 is provided with a thread to connect with the concentrator body 1; the area of ​​the thread on the surface of the fixing rod 42 is limited, thereby ensuring the smooth surface of the fixing rod 42 at the liquid contact position and avoiding fine particles remaining inside the thread, which would affect the subsequent movement of the fixing rod 42; In some specific implementations, the baffle assembly includes a plurality of diverting blocks 51 and a plurality of inclined plates 52 rotatably disposed on the surface of the concentrator body 1. The diverting blocks 51 are located between the overflow weir 2 and the guide plate. The projection of the diverting blocks 51 toward the guide plate covers the bottom of the horizontal block 33. The cross-section of the diverting blocks 51 is U-shaped. In a further embodiment, the two drainage blocks 51 and the two inclined plates 52 are grouped together, and the two drainage blocks 51 and the two inclined plates 52 in the same group are symmetrically arranged relative to the guide arc 35. In a further embodiment, both the diversion block 51 and the inclined plate 52 are fixedly connected to adjusting gears 53. Two adjusting rings 54 are rotatably connected inside the concentrator body 1. Each adjusting ring 54 has several meshing teeth 55 fixedly connected inside it. These meshing teeth 55 are divided into two groups, with each group arranged in a circular array inside the adjusting ring 54. The meshing teeth 55 mesh with the adjusting gears 53. A drive gear 56 is slidably connected inside the concentrator body 1. The projection of the drive gear 56 toward the top of the concentrator body 1 meshes with the projection of the meshing teeth 55 toward the top of the concentrator body 1. The two groups of meshing teeth 55 meshing with the drive gear 56 are staggered in the vertical direction. Synchronous pulleys are fixedly connected to the surfaces of the adjusting gears 53, and synchronous belts are cross-connected between the synchronous pulleys in the same group. In a further embodiment, a motor is fixedly connected to the surface of the concentrator body 1, the motor is electrically connected to an external power source, the end of the motor output shaft is slidably connected to the drive gear 56, a cylinder is fixedly connected to the surface of the concentrator body 1, and a control rod 57 is fixedly connected to the end of the piston rod inside the cylinder, and the control rod 57 is rotatably connected to the drive gear 56. In a further embodiment, the surface of the drive gear 56 is provided with an annular groove, and the control rod 57 is adapted to the annular groove; When it is necessary to adjust the angle of the diversion block 51 or the inclined plate 52, first control the cylinder to push the control rod 57 to slide, so that the drive gear 56 meshes with the corresponding meshing tooth 55. Then start the motor to drive the drive gear 56 to rotate. The rotation of the drive gear 56 drives the adjustment ring 54 to rotate, so that the adjustment gear 53 rotates and changes the angle of the diversion block 51 or the inclined plate 52. The working principle of this utility model: When the thickener is in use, the liquid flow first contacts the guide plate, and then flows to the overflow weir 2. After the liquid flow contacts the guide plate, part of the liquid flow that contacts the arc plate 32 will flow to the surface of the horizontal block 33 under the action of the guide groove 36 and the arc plate 32. After contacting the guide arc 35, it flows to the overflow weir 2 through the seepage groove 34. Part of the water flow close to the thickener body 1 impacts the guide block 51 during the process of flowing to the overflow weir 2, and flows in the opposite direction through the seepage groove 34, impacting the inclined plate 52, and driving the fine particles on the surface of the guide plate and the inclined plate 52 to flow to the center of the thickener body 1.

[0021] The above-disclosed embodiments are only a few specific examples of the present utility model. However, the embodiments of the present utility model are not limited thereto. Any changes that can be conceived by those skilled in the art should fall within the protection scope of the present utility model.

Claims

1. A flow guiding device for a concentrator, characterized in that, The system includes an overflow weir (2) fixedly disposed on the surface of the thickener body (1), and a flow guiding mechanism is provided between the thickener body (1) and the overflow weir (2). The flow guiding mechanism includes: Several guide plates and several support plates (31) are fixedly installed on the surface of the thickener body (1). The guide plates are arranged in a ring array on the surface of the thickener body (1). Adjacent guide plates are fixedly installed inside the support plates (31) by fixing components. The projection of the guide plates on the side wall of the thickener covers the projection of the overflow weir (2). The guide plate includes two symmetrically arranged arc-shaped plates (32), the arc-shaped plates (32) are fixedly arranged with the support plate (31), and the ends of the arc-shaped plates (32) are fixedly connected with horizontal blocks (33). The surface of the horizontal blocks (33) is provided with several seepage grooves (34), and the ends of the horizontal blocks (33) are fixedly connected with guide arcs (35). The guide arcs (35) cover a part of the horizontal blocks (33), and the extension line of the edge of the arc-shaped plate (32) intersects with the edge of the guide arc (35). Material-blocking assemblies are provided on both sides of the arc-shaped plate (32), which are used to guide the flow of fine particles.

2. The concentrator flow guiding device as described in claim 1, characterized in that, The surface of the arc plate (32) is provided with several guide grooves (36), the edges of the guide grooves (36) are all spiral-shaped, and the distance between the guide groove (36) and the concentrator body (1) on the side closer to the horizontal block (33) is smaller than the distance between the guide groove (36) and the concentrator body (1) on the other side.

3. The concentrator flow guiding device as described in claim 2, characterized in that, The guide groove (36) is deeper on the side closer to the horizontal block (33) than on the other side.

4. The concentrator flow guiding device as described in claim 1, characterized in that, The fixing component includes a through groove (41) formed on the surface of the arc plate (32), and a fixing rod (42) is threadedly connected inside the concentrator body (1), the fixing rod (42) being adapted to the through groove (41).

5. The concentrator flow guiding device as described in claim 1, characterized in that, The surfaces of the arc plates (32) on both sides of a single guide plate are provided with open grooves. The edge projection of one side of the arc plate (32) is concave, and the edge projection of the other side of the arc plate (32) is convex.

6. The concentrator flow guiding device as described in claim 4, characterized in that, The end of the fixing rod (42) is threaded and connected to the concentrator body (1).

7. The concentrator flow guiding device as described in claim 1, characterized in that, The baffle assembly includes several diversion blocks (51) and several inclined plates (52) rotatably disposed on the surface of the concentrator body (1). The diversion blocks (51) are located between the overflow weir (2) and the guide plate. The projection of the diversion blocks (51) toward the guide plate covers the bottom of the horizontal block (33). The cross-section of the diversion blocks (51) is U-shaped.

8. The concentrator flow guiding device as described in claim 7, characterized in that, The two drainage blocks (51) and the two inclined plates (52) are a group, and the two drainage blocks (51) and the two inclined plates (52) in the same group are symmetrically arranged relative to the guide arc (35).

9. A flow guiding device for a concentrator as described in claim 7, characterized in that, The ends of the diversion block (51) and the inclined plate (52) are fixedly connected with adjusting gears (53). The body of the concentrator (1) is rotatably connected with two adjusting rings (54). The adjusting rings (54) are fixedly connected with several meshing teeth (55). The meshing teeth (55) are divided into two groups. The meshing teeth (55) in the same group are arranged in a ring array inside the adjusting rings (54). The meshing teeth (55) mesh with the adjusting gears (53). The body of the concentrator (1) is slidably connected with a drive gear (56). The projection of the drive gear (56) toward the top of the concentrator body (1) meshes with the projection of the meshing teeth (55) toward the top of the concentrator body (1).

10. A flow guiding device for a concentrator as described in claim 9, characterized in that, A cylinder is fixedly connected to the surface of the concentrator body (1), and a control rod (57) is fixedly connected to the end of the piston rod inside the cylinder. The control rod (57) is rotatably connected to the drive gear (56).

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