Precipitation device based on gap-adjustable inclined plate

Abstract

The utility model provides a sedimentation device based on a gap-adjustable inclined plate, which belongs to the technical field of sedimentation tanks and comprises an inclined plate sedimentation tank, a flow guide wall and a flow guide plate, inclined plate assemblies with adjustable intervals are arranged in the same-direction large particle settling zone and the reverse small particle settling zone; the water collecting tank is arranged above the inclined plate sedimentation tank; the sedimentation mud bucket is arranged at the bottom of the inclined plate sedimentation tank; and the sludge discharge pipe is connected with the sediment sludge hopper. According to the utility model, the same-direction large particle settling zone and the reverse-direction small particle settling zone are arranged in sequence; through two-time precipitation, the pool type structure is optimized, the precipitation area is effectively increased, the precipitation time is effectively shortened, and the precipitation efficiency is correspondingly improved; in addition, inclined plate assemblies with adjustable intervals are arranged in the same-direction large particle settling zone and the reverse-direction small particle settling zone; the technical effects of effectively avoiding blockage and improving the water treatment efficiency are achieved.

Description

Technical Field

[0001] This utility model relates to the field of sedimentation tank technology, and more specifically, to a sedimentation device based on an adjustable gap inclined plate. Background Technology

[0002] Inclined plate sedimentation is a water treatment technology used to remove suspended solid particles from water. Inclined plate sedimentation tanks belong to the inclined flow sedimentation type and are particularly suitable for removing loose particles, achieving a sedimentation efficiency 3-5 times higher than ordinary horizontal flow sedimentation tanks. However, existing inclined plate sedimentation zones have the following drawbacks: 1) The existing inclined plate angle is generally set at 50°-60°, and the plate spacing is 100 mm; although most sludge can be discharged smoothly, in scenarios involving highly viscous sludge, not only is sludge discharge difficult, but the limited plate spacing also makes cleaning undischarged sludge more challenging; 2) When changes in water treatment conditions such as temperature lead to variations in water viscosity, changes in the density and size of the particles to be settled will affect the particle settling velocity, thus reducing water treatment efficiency.

[0003] Therefore, there is an urgent need for an inclined plate sedimentation device suitable for treating highly viscous sludge. Summary of the Invention

[0004] The purpose of this invention is to provide a sedimentation device based on an adjustable gap inclined plate to solve at least one technical problem existing in the prior art.

[0005] A sedimentation device based on adjustable-gap inclined plates includes an inclined plate sedimentation tank, which is divided into a co-current large particle sedimentation zone and a counter-current small particle sedimentation zone by a guide wall; and an inclined plate assembly with adjustable spacing is provided in both the co-current large particle sedimentation zone and the counter-current small particle sedimentation zone.

[0006] A water collection trough is located above the inclined plate sedimentation tank;

[0007] A sedimentation hopper is located at the bottom of the inclined plate sedimentation tank;

[0008] The sludge discharge pipe is connected to the sedimentation sludge hopper.

[0009] Furthermore, in a preferred configuration, in the co-directional large particle sedimentation zone, the angle between the inclined plate of the inclined plate assembly and the horizontal plane is 45-60°; and in the counter-directional small particle sedimentation zone, the angle between the inclined plate of the inclined plate assembly and the horizontal plane is 55-70°.

[0010] Furthermore, in a preferred configuration, the inclined plate assembly includes an inclined plate and an inclined plate connector for connecting adjacent inclined plates; the inclined plate connector is two or more X-shaped connecting units that are hinged sequentially.

[0011] Furthermore, in a preferred configuration, the X-shaped connecting unit is used to connect two adjacent front and rear inclined plates;

[0012] The X-shaped connection unit includes a first arm and a second arm that cross each other in an X shape and are hinged to each other at the intersection point; each of the first arm and the second arm includes a first connecting end and a second connecting end; the first connecting ends of the first arm and the second arm are rotatably connected to the front inclined plate respectively; the second connecting ends of the first arm and the second arm are rotatably connected to the rear inclined plate respectively.

[0013] Furthermore, in a preferred configuration, the first connecting end and the second connecting end of the first support arm are hinged together at the intersection point; the first connecting end and the second connecting end of the second support arm are also hinged together at the intersection point.

[0014] The inclined plate assembly also includes a spacing adjustment structure; the spacing adjustment structure is a spacing adjustment rod at the intersection of each X-shaped connecting unit of the inclined plates in the same array.

[0015] Furthermore, a preferred structure is that adjacent X-shaped connecting units are hinged to each other through the ends of two support arms;

[0016] The first connecting end of the first support arm is fixedly installed relative to the front inclined plate; the first connecting end of the second support arm is slidably disposed in the first mounting groove; the first mounting groove is disposed on the front inclined plate along the length direction of the inclined plate; a first locking member for locking and positioning is provided on the first connecting end of the second support arm;

[0017] The second connecting end of the first support arm is fixedly installed relative to the rear inclined plate; the second connecting end of the second support arm is slidably disposed in the second mounting groove; the second mounting groove is disposed on the rear inclined plate along the length direction of the inclined plate; a second locking member for locking and positioning is provided on the second connecting end of the second support arm.

[0018] Furthermore, a preferred structure is that the inclined plate assembly is provided with lifting lugs for hoisting.

[0019] Furthermore, a preferred structure is that a drive motor for driving the first connecting end to slide within the first mounting groove is provided at the first connecting end of the second arm;

[0020] It also includes a control system for controlling the drive motor and the first locking element.

[0021] Furthermore, a preferred structure is that an adjustable weir plate for adjusting the height and flow rate of the water outlet is provided on the water collection tank.

[0022] Furthermore, in a preferred configuration, the co-current large particle sedimentation zone is located at the inlet of the inclined plate sedimentation tank; and the counter-current small particle sedimentation zone is located at the outlet of the inclined plate sedimentation tank.

[0023] As described above, the sedimentation device based on adjustable-gap inclined plates of this invention, by sequentially setting up a co-directional large particle sedimentation zone and a counter-directional small particle sedimentation zone, optimizes the tank structure, dividing the sedimentation tank into two sections, thereby improving sedimentation efficiency. Through two sedimentation processes, the sedimentation area and time are effectively increased, and the sedimentation efficiency is correspondingly improved. In addition, by setting adjustable-gap inclined plate components in both the co-directional large particle sedimentation zone and the counter-directional small particle sedimentation zone, the spacing of the inclined plate components can be increased according to the scenario of treating highly viscous sludge, thereby improving sludge discharge efficiency and reducing the difficulty of sludge cleaning. When changes in water treatment conditions such as temperature cause changes in water viscosity, the spacing of the inclined plate components is adjusted according to the change in particle settling velocity, effectively avoiding clogging problems and improving water treatment efficiency. Attached Figure Description

[0024] Other objects and results of this invention will become more apparent and readily understood with reference to the following description taken in conjunction with the accompanying drawings and the contents of the claims, and with a more complete understanding of this invention.

[0025] In the attached diagram:

[0026] Figure 1 This is a structural schematic diagram of a sedimentation device based on an adjustable gap inclined plate according to an embodiment of the present invention.

[0027] Figure 2 This is another structural schematic diagram of a sedimentation device based on an adjustable gap inclined plate according to an embodiment of the present utility model.

[0028] Figure 3 This is a schematic diagram of the water flow direction of the inclined plate according to an embodiment of the present utility model.

[0029] Figure 4 This is a schematic diagram of the inclined plate assembly according to an embodiment of the present utility model.

[0030] The components include: 1. Inclined plate sedimentation tank; 2. Water collection trough; 3. Sludge discharge pipe; 4. Co-current large particle sedimentation zone; 5. Counter-current small particle sedimentation zone; 11. Inclined plate; 12. X-type connection unit. Detailed Implementation

[0031] In the following description, numerous specific details are set forth for illustrative purposes and to provide a thorough understanding of one or more embodiments. However, it will be apparent that these embodiments may also be implemented without these specific details. In other instances, well-known structures and devices are shown in block diagram form for ease of description of one or more embodiments.

[0032] It should be understood that the terms "horizontal", "vertical", "upper", "lower", "top", "middle", "length", "inner", "bottom", etc., which indicate orientation or positional relationship, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model.

[0033] Unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Example 1

[0035] The various embodiments of this utility model will now be described in detail with reference to the accompanying drawings.

[0036] Figures 1-3 The structure of a sedimentation device based on an adjustable gap inclined plate is described in general. Specifically, Figure 1 This is a structural schematic diagram of a sedimentation device based on an adjustable gap inclined plate according to an embodiment of the present invention. Figure 2 This is another structural schematic diagram of a sedimentation device based on an adjustable gap inclined plate according to an embodiment of the present utility model. Figure 3 This is a schematic diagram of the water flow direction of the inclined plate according to an embodiment of the present utility model.

[0037] like Figures 1-3As shown, the present invention provides a sedimentation device based on adjustable-gap inclined plates. An inclined plate sedimentation tank 1 is divided into a co-current large particle sedimentation zone and a counter-current small particle sedimentation zone by a guide wall. Adjustable-gap inclined plate assemblies are installed in both the co-current large particle sedimentation zone and the counter-current small particle sedimentation zone. A water collection trough 2 is located above the inclined plate sedimentation tank. A sedimentation sludge hopper is located at the bottom of the inclined plate sedimentation tank. A sludge discharge pipe 3 is connected to the sedimentation sludge hopper. An adjustable effluent weir plate for adjusting the height and flow rate of the effluent is installed on the water collection trough 2. An effluent pipe is installed at the end of the water collection trough, and a sedimentation sludge hopper and a sludge discharge pipe are installed below the bidirectional flow sedimentation tank. Specifically, in the inclined plate sedimentation tank, water to be treated is introduced into the inclined plate assembly in the sedimentation tank; wherein, the inclined plate assembly consists of a series of inclined plates installed vertically or nearly vertically in the sedimentation tank; due to gravity, suspended particles in the water gradually settle to the surface of the inclined plates; the particles aggregate on the inclined plates to form a sludge layer. Sludge accumulated on the inclined plates can be periodically removed using a scraper or other cleaning equipment. The inclined plates significantly increase the settling area of ​​the sedimentation tank, thereby improving treatment efficiency. Due to the increased settling area, particle settling time is shortened, increasing the treatment speed. Compared to traditional flat-bottomed sedimentation tanks, inclined plate sedimentation tanks can achieve the same treatment capacity within a smaller footprint. Inclined plate sedimentation can more effectively remove suspended solids from water, improving effluent quality. The inclined plate structure is simple, easy to install and maintain.

[0038] According to Stokes' theorem, the formula for calculating the sedimentation velocity of particles in water is: V = (ρ g -ρ 液 )d p 2 g / 18μ; where V represents the particle settling velocity (m / s); ρ g Represents particle density; ρ 液 d represents the density of the liquid. p The nominal diameter of the particle is represented by ρ; g represents gravitational acceleration; μ represents the dynamic viscosity of the liquid. As can be seen from the formula, doubling the particle size increases the sedimentation rate fourfold. The sedimentation time varies greatly for particles of different sizes. Therefore, adjusting the plate spacing is crucial to ensuring the treatment effect. The sedimentation device based on adjustable-gap inclined plates provided in this invention can reduce the plate spacing when encountering particles with low sedimentation rates and a decrease in sedimentation efficiency. This allows the particles to settle onto the plates within the designed time without increasing the residence time. When the inclined plates become clogged, the plate size can be increased, and the device can be reused after rinsing.

[0039] This invention achieves partitioned sedimentation zones for co-current large particles and counter-current small particles through the cooperation of a guide wall and an inclined plate assembly. The co-current large particle sedimentation zone is located at the inlet of the inclined plate sedimentation tank, and the counter-current small particle sedimentation zone is located at the outlet of the inclined plate sedimentation tank. In the co-current large particle sedimentation zone, the angle between the inclined plate of the inclined plate assembly and the horizontal plane is 45-60°; in the counter-current small particle sedimentation zone, the angle between the inclined plate of the inclined plate assembly and the horizontal plane is 55-70°. Figure 3 As shown, the water flows downwards, while the sediment particles slide automatically down the inclined plate surface; that is, the water flow direction and the movement direction of the sediment particles are the same, i.e., co-directional. In the large particle sedimentation zone, setting the water flow to co-directional can avoid the backing effect caused by the inclined plate and the water flow direction being opposite, thereby greatly improving the sedimentation efficiency. This invention separates large and small particle sediments for sedimentation, avoiding the clogging problem between the inclined plates, thus improving sedimentation efficiency. In specific implementation, the sedimentation efficiency can be further improved by setting closed or semi-closed baffles. Alternatively, a buffer chamber can be set before the sedimentation tank to reduce the impact force entering the sedimentation zone. The above improvements expand the applicable scenarios of the sedimentation device based on adjustable gap inclined plates, such as in drinking water treatment scenarios, removing suspended solids and particulate matter from water sources; in wastewater treatment scenarios, removing pollutants in industrial and municipal wastewater treatment; and in rainwater treatment scenarios, removing sediments in collection and treatment systems.

[0040] Figure 4 This is a structural schematic diagram of the inclined plate assembly according to an embodiment of the present utility model. Figure 4As shown, in a specific implementation process, the inclined plate assembly includes an inclined plate 11 and an inclined plate connector 12 for connecting adjacent inclined plates; the inclined plate connector 12 consists of two or more X-shaped connecting units hinged sequentially. That is, the spacing between the inclined plates is adjustable through the inclined plate connector. The X-shaped connecting unit is used to connect two adjacent front and rear inclined plates; the X-shaped connecting unit includes a first arm and a second arm that cross in an X shape and are hinged to each other at the intersection point; both the first arm and the second arm include a first connecting end and a second connecting end; the first connecting ends of the first arm and the second arm are rotatably connected to the preceding inclined plate; the second connecting ends of the first arm and the second arm are rotatably connected to the following inclined plate. When adjusting the spacing between two adjacent inclined plates of the inclined plate assembly, the spacing between the preceding and following inclined plates can be adjusted by adjusting the X-shaped connecting unit. Because the first and second arms intersect in an X-shape and are hinged at the intersection, the vertical distance (i.e., the spacing between the inclined plates) between the upper and lower ends of the first or second arm can be adjusted by adjusting the horizontal distance between their ends. For example, when the distance between the first connecting ends of the first and second arms increases, the tilt angle of the first and second arms increases, thus shortening the vertical distance occupied by the first and second arms, and consequently reducing the spacing between adjacent inclined plates. Conversely, when the distance between the first connecting ends of the first and second arms decreases, the tilt angle of the first and second arms decreases, thus lengthening the vertical distance occupied by the first and second arms, and consequently increasing the spacing between adjacent inclined plates.

[0041] The specific implementation of the X-type connecting unit is as follows: adjacent X-type connecting units are hinged together by the ends of two support arms; the first connecting end of the first support arm is fixedly installed relative to the preceding inclined plate; the first connecting end of the second support arm is slidably disposed in the first mounting groove; the first mounting groove is disposed on the preceding inclined plate along the length direction of the inclined plate; a first locking member for locking and positioning is provided on the first connecting end of the second support arm; the second connecting end of the first support arm is fixedly installed relative to the following inclined plate; the second connecting end of the second support arm is slidably disposed in the second mounting groove; the second mounting groove is disposed on the following inclined plate along the length direction of the inclined plate; a second locking member for locking and positioning is provided on the second connecting end of the second support arm. In other words, adjacent X-type connecting units are hinged together by the ends of two support arms. For the same column of inclined plate assemblies, they are installed on the same column of X-type connecting units. Because the X-type connecting units are connected one after the other, when the first group of X-type connecting units deforms, each of the other X-type connecting units deforms to the same degree, thus causing the spacing between adjacent inclined plates in the column of inclined plate assemblies to change by the same amount simultaneously. The mounting slots and locking elements are correspondingly configured; the locking and releasing mechanism allows the user to lock the X-type connecting unit after adjusting the position of the ramps, preventing accidental movement. The locking element can be a locking nut. When the distance between the first connecting ends of the first arm and the second arm is increased by sliding within the first mounting slot, the connecting frame is compressed, reducing the distance between the two ramps connecting every two adjacent X-type connecting units, thus decreasing the spacing between multiple ramps. Alternatively, when the distance between the first connecting ends of the first arm and the second arm is decreased by sliding within the first mounting slot, the connecting frame is stretched, increasing the distance between the two ramps connecting every two adjacent X-type connecting units, thus increasing the spacing between multiple ramps.

[0042] Furthermore, the inclined plate assembly is equipped with lifting lugs for easy removal from the sedimentation tank. After the inclined plates are removed, the spacing between them can be increased using an adjustable device, and a dedicated rinsing device can be used to thoroughly clean the sedimentation area on the surface of the inclined plates, achieving offline cleaning. Offline cleaning avoids the problem of excessive emissions caused by online cleaning.

[0043] Example 2

[0044] Based on the same structure as in Embodiment 1, to automate the spacing adjustment, a drive motor is provided at the first connecting end of the second arm to drive the first connecting end to slide within the first mounting groove; a control system is also included to control the drive motor and the first locking element. In other words, for the automatically adjustable inclined plate unit, sensors may be included to monitor the inclined plate position and a control system to remotely adjust the support; that is, precise control of the inclined plate spacing adjustment is achieved by using an electronic control system corresponding to the drive motor, electronic locking, and sensors. As an improvement to this embodiment, a monitoring system can also be installed to monitor the parameters of the water to be treated and the sedimentation effect in real time, and automatically or manually adjust the inclined plate angle based on feedback information.

[0045] Example 3

[0046] A further implementation of the X-type connecting unit is as follows: the first connecting end and the second connecting end of the first arm are hinged at the intersection; the first connecting end and the second connecting end of the second arm are also hinged at the intersection; the inclined plate assembly further includes a spacing adjustment structure; the spacing adjustment structure is a spacing adjustment rod used to connect the intersections of the X-type connecting units of the inclined plates in the same array. That is, the first arm and the second arm are each configured as two sub-arms hinged together; specifically, for the first arm, the first sub-arm with the first connecting end and the second sub-arm with the second connecting end are hinged at the intersection of the first arm and the second arm; that is, at the intersection, the first sub-arm and the second sub-arm of the first arm, and the first sub-arm and the second sub-arm of the second arm are hinged together. The spacing adjustment rod connects the intersections of the X-type connecting units of the inclined plates in the same array together. When the spacing adjustment rod is on the same plane as each inclined plate, the first and second sub-arms of the first arm and the first and second sub-arms of the second arm are in a straight line, and the spacing between adjacent inclined plates is at its maximum. When the spacing adjustment rod is lifted, the greater the distance between the spacing adjustment rod and the plane of the inclined plate, the smaller the angle between the first and second sub-arms of the first arm, and the smaller the distance between the first and second connecting ends of each arm, thus the smaller the spacing between adjacent inclined plates. Because the spacing adjustment rod connects the intersections of the X-shaped connecting units of the inclined plates in the same array, the deformation of the X-shaped connecting units between each inclined plate is the same, which makes the spacing change of each inclined plate in the sedimentation device based on adjustable gap inclined plates the same.

[0047] In summary, this utility model provides a sedimentation device based on adjustable-gap inclined plates. By sequentially setting up a co-directional large particle sedimentation zone and a counter-directional small particle sedimentation zone, and optimizing the tank structure by dividing the sedimentation tank into two sections, sedimentation efficiency is improved. Through two sedimentation processes, the sedimentation area and time are effectively increased, and the sedimentation efficiency is correspondingly improved. In addition, by setting adjustable-gap inclined plate components in both the co-directional large particle sedimentation zone and the counter-directional small particle sedimentation zone, the spacing of the inclined plate components can be increased according to the scenario of treating highly viscous sludge, thereby improving sludge discharge efficiency and reducing the difficulty of sludge cleaning. When changes in water treatment conditions such as temperature lead to changes in water viscosity, the spacing of the inclined plate components can be adjusted according to the changes in particle settling velocity to effectively avoid clogging problems and improve water treatment efficiency.

[0048] However, those skilled in the art should understand that various improvements can be made to the sedimentation device based on the adjustable gap inclined plate provided by this utility model without departing from the scope of this utility model. Therefore, the scope of protection of this utility model should be determined by the contents of the appended claims.

Claims

1. A sedimentation device based on an adjustable gap inclined plate, characterized in that, include, The inclined plate sedimentation tank is divided into a co-current large particle sedimentation zone and a counter-current small particle sedimentation zone by a guide wall; both the co-current large particle sedimentation zone and the counter-current small particle sedimentation zone are equipped with inclined plate assemblies with adjustable spacing. A water collection trough is located above the inclined plate sedimentation tank; A sedimentation hopper is located at the bottom of the inclined plate sedimentation tank; The sludge discharge pipe is connected to the sedimentation sludge hopper.

2. The sedimentation device based on an adjustable gap inclined plate according to claim 1, characterized in that, In the co-current large particle sedimentation zone, the angle between the inclined plate of the inclined plate assembly and the horizontal plane is 45-60°; in the counter-current small particle sedimentation zone, the angle between the inclined plate of the inclined plate assembly and the horizontal plane is 55-70°.

3. The sedimentation device based on an adjustable gap inclined plate according to claim 1, characterized in that, The inclined plate assembly includes an inclined plate and an inclined plate connector for connecting adjacent inclined plates; the inclined plate connector is two or more X-shaped connecting units that are hinged sequentially.

4. The sedimentation device based on an adjustable gap inclined plate according to claim 3, characterized in that, The X-shaped connecting unit is used to connect two adjacent front and rear inclined plates; The X-shaped connecting unit includes a first arm and a second arm that are hinged together and cross each other to form an X shape; each of the first arm and the second arm includes a first connecting end and a second connecting end; the first connecting ends of the first arm and the second arm are rotatably connected to the front inclined plate respectively; the second connecting ends of the first arm and the second arm are rotatably connected to the rear inclined plate respectively.

5. The sedimentation device based on an adjustable gap inclined plate according to claim 4, characterized in that, The first connecting end and the second connecting end of the first support arm are hinged at the intersection point; the first connecting end and the second connecting end of the second support arm are also hinged at the intersection point. The inclined plate assembly also includes a spacing adjustment structure; the spacing adjustment structure is a spacing adjustment rod at the intersection of each X-shaped connecting unit of the inclined plates in the same array.

6. The sedimentation device based on an adjustable gap inclined plate according to claim 4, characterized in that, Adjacent X-shaped connecting units are hinged to each other through the ends of two support arms; The first connecting end of the first support arm is fixedly installed relative to the front inclined plate; the first connecting end of the second support arm is slidably disposed in the first mounting groove; the first mounting groove is disposed on the front inclined plate along the length direction of the inclined plate; a first locking member for locking and positioning is provided on the first connecting end of the second support arm; The second connecting end of the first support arm is fixedly installed relative to the rear inclined plate; the second connecting end of the second support arm is slidably disposed in the second mounting groove; the second mounting groove is disposed on the rear inclined plate along the length direction of the inclined plate; a second locking member for locking and positioning is provided on the second connecting end of the second support arm.

7. The sedimentation device based on an adjustable gap inclined plate according to claim 1, characterized in that, The inclined plate assembly is provided with lifting lugs for hoisting.

8. The sedimentation device based on an adjustable gap inclined plate according to claim 6, characterized in that, A drive motor for driving the first connection end is provided at the first connection end of the second arm, and the drive motor slides in the first mounting groove; The sedimentation device also includes a control system for controlling the drive motor and the first locking element.

9. The sedimentation device based on an adjustable gap inclined plate according to claim 1, characterized in that, An adjustable weir plate is provided on the water collection tank for adjusting the height and flow rate of the water outlet.

10. The sedimentation device based on an adjustable gap inclined plate according to claim 1, characterized in that, The co-current large particle sedimentation zone is located at the inlet of the inclined plate sedimentation tank; the counter-current small particle sedimentation zone is located at the outlet of the inclined plate sedimentation tank.

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