Device capable of continuously and rapidly precipitating wastewater

Abstract

The utility model relates to the technical field of wastewater treatment, in particular to a device capable of continuously and quickly precipitating wastewater, which comprises a first box body, a second box body, a flow divider, a guide cylinder and a conical fluid director, wherein a first box body is arranged in the second box body, a conical fluid director is arranged outside the first box body, a flow divider is arranged in the first box body, and a guide cylinder penetrates through the top of the second box body and extends into the first box body; according to the utility model, the flow direction of the wastewater is changed through the flow divider and the conical flow guider, so that the wastewater respectively enters the bottoms of the first box body and the second box body along the inner walls of the first box body and the second box body, thereby reducing the impact of the wastewater on the bottoms of the box bodies and avoiding floating of precipitated particulate matters at the bottoms of the box bodies; therefore, the solid-liquid separation efficiency of the wastewater is improved; and on the basis of completing primary precipitation on the wastewater in the first box body, the wastewater in the first box body is subjected to secondary precipitation by the second box body, and the recoverable rate of the wastewater is improved through continuous and sustainable precipitation.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a device for continuously and rapidly precipitating wastewater. Background Art

[0002] There are often still a lot of fine particles in the filtered wastewater. The most common way to separate the fine particles is to place the wastewater in a sedimentation tank for static sedimentation, so that the clear liquid floats up and the particles sink. The upper clear liquid and the lower particles are then transported through pipes for other uses, thereby achieving solid-liquid separation in the wastewater. During use, the sedimentation tank often needs to be continuously injected with wastewater. The wastewater will generate a large impact force on the bottom of the tank during the injection process. Under the action of the impact force, the precipitated particles float up again. The floating particles will not only cause secondary pollution to the upper clear liquid, but also increase the sedimentation time of the particles, reducing the sedimentation efficiency of the particles. Furthermore, the most commonly used sedimentation tanks currently mostly adopt a single tank structure, that is, the upper clear liquid and the lower particles are always in the same tank, which makes the solid-liquid separation degree in the wastewater not high, resulting in the problem of low wastewater recovery rate. Utility Model Content

[0003] The purpose of the utility model is to provide a device for sustainable and rapid sedimentation of wastewater, so as to solve the problems raised in the above background technology.

[0004] The technical solution adopted in this utility model is:

[0005] A device for continuously and rapidly precipitating wastewater, comprising:

[0006] The first box has an open top structure, is provided with a first sewage pipe and a slot extending through the opening near the top of the first box, and is used for the initial sedimentation of wastewater;

[0007] A second box body is arranged outside the first box body and is fixedly connected to the top of the first box body. A cleaning pipe and a second sewage pipe are arranged on the second box body. The second box body is used for secondary sedimentation of wastewater;

[0008] A flow diverter, fixedly disposed in the first housing and located below the notch;

[0009] a guide cylinder, which is provided through the top of the second box body and extends downwardly into the first box body and faces the diverter;

[0010] a conical deflector, arranged on the circumference of the outer wall of the first box body and below the notch;

[0011] in,

[0012] The diverter comprises:

[0013] The welding ring portion is fixedly mounted on the inner wall of the first box body;

[0014] A plurality of connecting portions are arranged at intervals on the inner circumferential surface of the welding annular portion;

[0015] The hollow conical portion is arranged in the welding circular ring portion and is fixedly connected to the welding circular ring portion through the connecting portion.

[0016] Optionally, a guide plate is spirally arranged in the guide cylinder along the axial direction of the guide cylinder.

[0017] Optionally, the outer sides of the guide cylinder and the guide plate are both covered with an anti-corrosion layer.

[0018] Optionally, the connection between the guide cylinder and the guide plate is a smooth transition connection.

[0019] Optionally, the guide cylinder and the guide plate are an integrally formed structure.

[0020] Optionally, the guide cylinder is detachably connected to the second box body via threads.

[0021] Optionally, the bottom of the first box is a tapered groove.

[0022] Optionally, the bottom of the second box is a tapered groove.

[0023] Optionally, central axes of the guide cylinder, the diverter, the first box, the conical flow guide and the second box are on the same straight line.

[0024] Optionally, the first sewage pipe is fixedly arranged on the inner wall of the first box body through a plurality of welding end blocks.

[0025] Compared with the prior art, the beneficial effects of the present invention are:

[0026] In the present invention, the wastewater is caused to enter the bottom of the first box along the inner wall of the first box through the diverter, thereby reducing the impact of the wastewater on the bottom of the first box and avoiding the floating of the precipitated particles at the bottom of the first box, thereby improving the efficiency of solid-liquid separation of the wastewater; similarly, the flow direction of the wastewater is changed by the conical guide, so that the wastewater flowing out of the first box enters the bottom of the second box along the inner wall of the second box, thereby reducing the impact of the wastewater on the bottom of the second box and avoiding the floating of the precipitated particles. Under the action of the diverter and the conical guide, the wastewater is quickly precipitated, shortening the precipitation time of the particles; furthermore, on the basis of the first precipitation of the wastewater in the first box, the second box performs secondary precipitation on the wastewater in the first box, and the recoverable rate of the wastewater is improved through continuous and sustainable precipitation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0028] Figure 1 This is a schematic diagram of the overall structure of this application;

[0029] Figure 2 Schematic diagram of the structure of the diverter in this application;

[0030] Figure 3 This is a schematic structural diagram of the guide cylinder in this application.

[0031] Reference numerals:

[0032] 1. First box body; 111. First upper box body; 1111. Notch; 112. First lower box body;

[0033] 2. Flow divider; 221. Welding ring portion; 222. Hollow conical portion; 223. Connecting portion;

[0034] 3. First sewage pipe; 4. First control valve; 5. First sewage pump; 6. Conical deflector;

[0035] 7. Second box; 771. Second upper box; 772. Second lower box;

[0036] 8. Drain pipe; 9. Second control valve; 10. Drain pump; 11. Second sewage pipe; 12. Third control valve; 13. Second sewage pump;

[0037] 14. Guide cylinder; 141. Guide plate;

[0038] 15. Weld the end blocks. DETAILED DESCRIPTION

[0039] Hereinafter, only certain exemplary embodiments are briefly described. As will be appreciated by those skilled in the art, the described embodiments may be modified in various ways without departing from the spirit or scope of the present invention. Therefore, the drawings and description are to be regarded as illustrative in nature and not restrictive.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the products of the present invention are conventionally placed when in use, or are the orientations or positional relationships conventionally understood by those skilled in the art. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0042] The embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0043] The embodiment of the present utility model provides a device for sustainable and rapid sedimentation of wastewater, comprising: a first box body 1 for primary sedimentation of wastewater and a second box body 7 arranged outside the first box body 1 and fixedly connected to the top of the first box body 1 for secondary sedimentation of wastewater.

[0044] Among them, a diverter 2 for diversion is fixedly provided in the first box body 1, and a guide cylinder 14 is provided above the diverter 2. The guide cylinder 14 passes through the top of the second box body 7 and extends downward into the first box body 1. The top of the guide cylinder 14, that is, the inlet end, is located outside the second box body 7 and is connected to other wastewater transmission equipment outside. The bottom of the guide cylinder 14, that is, the outlet end, faces the diverter 2; the filtered wastewater is transported to the first box body 1 through the guide cylinder 14, and then the wastewater is diverted through the diverter 2, so that the wastewater is dispersed and slowly enters the bottom of the first box body 1 along the inner wall of the first box body 1, and the impact force of the wastewater on the bottom of the first box body 1 is reduced by the diverter 2. A slot 1111 is provided on the first box body 1 at a position relatively close to the top. The upper layer of clear liquid that has completed the first sedimentation in the first box body 1, i.e., the primary clear liquid, passes through the slot 1111 along the outer wall of the first box body 1 into the interior of the second box body 7. In order to reduce the impact force of the primary clear liquid on the bottom of the second box body 7, a conical deflector 6 is fixedly provided on the circumference of the outer wall of the first box body 1, that is, below the slot 1111. The primary clear liquid flowing out through the slot 1111 flows to the conical deflector 6, and the conical deflector 6 first diverts and then diverts the primary clear liquid. The last time, the clear liquid enters the bottom of the second box body 7 along the inner wall of the second box body 7 for secondary sedimentation. The wastewater is allowed to enter the bottom of the first box body 1 along the inner wall of the first box body 1 through the diverter 2, reducing the impact of the wastewater on the bottom of the first box body 1, avoiding the floating of the precipitated particles at the bottom of the first box body 1, and thus improving the efficiency of solid-liquid separation of the wastewater; similarly, the flow direction of the primary clear liquid is changed by the conical guide 6, so that the primary clear liquid enters the bottom of the second box body 7 along the inner wall of the second box body 7, reducing the impact of the primary clear liquid on the bottom of the second box body 7, and avoiding the floating of the precipitated particles; furthermore, on the basis of completing the first precipitation of the wastewater in the first box body 1, the second box body 7 performs secondary precipitation on the primary clear liquid in the first box body 1, and the recoverable rate of the wastewater is improved through continuous and sustainable precipitation.

[0045] Specifically, if Figure 1 As shown, the first housing 1 is a top-opening structure, comprising a first upper housing 111 and a first lower housing 112. The first upper housing 111 and the first lower housing 112 are integrally formed and interlinked, with the first upper housing 111 being cylindrical and the first lower housing 112 being a tapered groove. A notch 1111 is provided adjacent to the opening of the first upper housing 111 for passage of the primary clear liquid. A first drain pipe 3 is fixedly provided on the inner walls of the first upper housing 111 and the first lower housing 112 via a plurality of welded end blocks 15. The first drain pipe 3 extends from the interior of the first housing 1 to the exterior of the second housing 7. A first control valve 4 and a first drain pump 5 are provided adjacent to the first drain pipe 3. Primary precipitated particles deposited at the bottom of the first lower housing 112 are discharged from the first housing 1 via the first drain pipe 3, the first control valve 4, and the first drain pump 5.

[0046] The diverter 2 is fixedly arranged at the junction of the first upper box body 111 and the first lower box body 112. The specific structure is as follows Figure 2 As shown, it comprises: a welded annular portion 221, a hollow conical portion 222, and a connecting portion 223. The welded annular portion 221 is fixedly mounted on the inner bottom wall of the first upper housing 111. A plurality of connecting portions 223 are fixedly disposed on its inner circumferential surface at intervals, forming a plurality of channels between the spaced connecting portions 223. A hollow conical portion 222, which functions as a diversion device, is fixedly disposed at the free extending end of the connecting portion 223. Wastewater flowing out of the guide cylinder 14 is dispersed along the hollow conical portion 222, passes through the channels, and flows along the inner wall of the first lower housing 112 into the groove of the first lower housing 112.

[0047] Like the first housing 1, the second housing 7 also includes a second upper housing 771 and a second lower housing 772. The second upper housing 771 and the second lower housing 772 are integrally formed and connected. The second upper housing 771 is cylindrical, and the second lower housing 772 is a tapered groove. The second upper housing 771 is provided with a drain pipe 8 for discharging secondary clear liquid (wastewater that has undergone secondary sedimentation). The drain pipe 8 is adjacently provided with a second control valve 9 and a drain pump 10. The secondary clear liquid is discharged from the second housing 7 through the drain pipe 8, the second control valve 9, and the drain pump 10. In order to discharge the secondary precipitated particles settled in the groove of the second lower housing 72 out of the second housing 7, a second sewage pipe 11 is provided in the groove of the second lower housing 772. Similarly, the second sewage pipe 11 is adjacently provided with a third control valve 12 and a second sewage pump 13.

[0048] In order to further reduce the impact of wastewater on the bottom of the first box body 1, in this embodiment, Figure 3 As shown, a guide plate 141 can be spirally arranged inside the guide cylinder 14 along the axial direction of the guide cylinder 14. The wastewater in the guide cylinder 14 is depressurized through the spirally arranged guide plate 141 to avoid excessive water flow speed, which causes the sediment particles at the bottom of the first box body 1 to float up.

[0049] Furthermore, in order to increase the service life of the guide cylinder 14 and the guide plate 141 , an anti-corrosion layer may be coated on the outer sides of the guide cylinder 14 and the guide plate 141 .

[0050] Furthermore, in order to prevent particles in the wastewater from accumulating at the connection between the guide plate 141 and the guide cylinder 14, which makes it difficult to clean them later, the connection between the guide plate 141 and the guide cylinder 14 is configured as a smooth transition connection.

[0051] Furthermore, in order to improve the stability between the guide plate 141 and the guide cylinder 14 , the guide plate 141 and the guide cylinder 14 are formed into an integral structure.

[0052] Furthermore, in this embodiment, in order to control the size of the gap between the outlet end of the guide cylinder 14 and the diverter 2 , the guide cylinder 14 can be detachably connected to the top of the second box body 7 through threads.

[0053] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A device for continuous and rapid precipitation of wastewater, characterized in that: include: A first box body has an open top structure, is provided with a first sewage pipe and a notch extending through the opening near the top of the first box body, and is used for primary sedimentation of wastewater; a second box body is provided outside the first box body and fixedly connected to the top of the first box body, is provided with a drainage pipe and a second sewage pipe, and is used for secondary sedimentation of wastewater; a diverter is fixedly provided in the first box body and is located below the notch; a guide cylinder is provided through the top of the second box body and extends downward into the first box body to face the diverter; A conical deflector is arranged on the circumference of the outer wall of the first box body and is located below the notch; wherein, the diverter includes: a welding ring portion, which is fixedly arranged on the inner wall of the first box body; a plurality of connecting portions, which are arranged at intervals on the inner circumferential surface of the welding ring portion; and a hollow conical portion, which is arranged inside the welding ring portion and is fixedly connected to the welding ring portion through the connecting portions.

2. The device for sustainable and rapid wastewater precipitation according to claim 1, characterized in that: A guide plate is spirally arranged in the guide cylinder along the axial direction of the guide cylinder.

3. The device for sustainable and rapid wastewater precipitation according to claim 2, characterized in that: The outer sides of the guide cylinder and the guide plate are both covered with an anti-corrosion layer.

4. The device for sustainable and rapid wastewater precipitation according to claim 2, characterized in that: The connection between the guide cylinder and the guide plate is a smooth transition connection.

5. The device for sustainable and rapid wastewater precipitation according to claim 2, characterized in that: The guide cylinder and the guide plate are an integrally formed structure.

6. The device for sustainable and rapid wastewater precipitation according to claim 1, characterized in that: The guide cylinder is detachably connected to the second box body through threads.

7. The device for sustainable and rapid wastewater precipitation according to claim 1, characterized in that: The bottom of the first box is a tapered groove.

8. The device for sustainable and rapid wastewater precipitation according to claim 1, characterized in that: The bottom of the second box is a tapered groove.

9. The device for sustainable and rapid wastewater precipitation according to claim 1, characterized in that: The central axes of the guide cylinder, the diverter, the first box, the conical flow guide and the second box are on the same straight line.

10. The device for sustainable and rapid wastewater precipitation according to claim 1, characterized in that: The first sewage pipe is fixedly arranged on the inner wall of the first box through a plurality of welding end blocks.

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