Coking wastewater impurity separation device

Abstract

The utility model discloses a coking wastewater impurity separating device which comprises a separating tank, a water adding cavity is arranged on the inner side of the separating tank, an annular deposition cavity is arranged on the periphery of the water adding cavity, a drain outlet is arranged at the bottom of the deposition cavity, and a water adding opening and a water discharging opening are respectively arranged on the upper side and the lower side of the water adding cavity. A plurality of through holes communicated with the deposition cavity are formed in the periphery of the water adding cavity, a vertical shaft is arranged in the water adding cavity, a stirring piece is arranged on the vertical shaft, and a driving device for driving the vertical shaft to rotate is arranged at the top of the separation tank. The water adding cavity and the deposition cavity are formed in the separation tank, the stirring piece drives the water flow to rotate, scrap iron and large-particle impurities are separated into the deposition cavity through centrifugal force and then deposited, the scrap iron and the large-particle impurities in the deposition cavity cannot flow out along with the water flow during water drainage, the separation effect on the scrap iron and the impurities is prevented from being affected, and the separation efficiency is improved. The subsequent water purification operation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of coking wastewater treatment, in particular to a coking wastewater impurity separation device. Background Art

[0002] At present, in the wastewater treatment of petroleum coking, coking wastewater contains a lot of iron filings and large impurities. The current treatment of domestic sewage and coking wastewater is to separate iron filings and large impurities through sedimentation, and then discharge the separated water for subsequent purification treatment. At present, during the discharge of separated water, the water flow in the sedimentation tank will also drive the deposited iron filings and impurities to flow, and some impurities will still be carried out with the water flow, affecting the separation effect of iron filings and impurities. Utility Model Content

[0003] The purpose of the utility model is to avoid the deficiencies of the prior art and provide a coking wastewater impurity separation device, thereby effectively solving the deficiencies in the prior art.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a coking wastewater impurity separation device, including a separation tank, a water adding chamber is arranged on the inner side of the separation tank, an annular sedimentation chamber is arranged on the outer periphery of the water adding chamber, a sewage outlet is arranged at the bottom of the sedimentation chamber, a water adding port and a drain port are respectively arranged on the upper and lower sides of the water adding chamber, a plurality of through holes connected with the sedimentation chamber are arranged on the outer periphery of the water adding chamber, a vertical shaft is arranged in the water adding chamber, a stirring member is arranged on the vertical shaft, and a driving device for driving the vertical shaft to rotate is arranged on the top of the separation tank.

[0005] Furthermore, a conical bevel is provided on the inner wall of the water adding chamber at a position matching the through hole.

[0006] Furthermore, the bottom of the water adding chamber is configured to be conical, and the drain port is configured at the bottom of the water adding chamber.

[0007] Furthermore, a plurality of stirring members are arranged on the vertical axis at heights corresponding to the through holes.

[0008] Furthermore, the stirring member is a plurality of arc-shaped blades uniformly arranged on the vertical axis along the circumferential direction.

[0009] Furthermore, a spiral chute is provided on the inner wall of the outer circumference of the deposition chamber, and the opening width of the chute is smaller than the width of the interior of the chute.

[0010] Furthermore, a slope is arranged at the bottom of the sedimentation chamber, and the sewage outlet is arranged at the bottom of the slope.

[0011] The above technical scheme of the utility model has the following beneficial effects: the utility model arranges a water adding chamber and a sedimentation chamber in the separation tank, drives the rotating water flow through the stirring element, separates the iron filings and large-particle impurities into the sedimentation chamber by centrifugal force and then deposits them; when draining water, the iron filings and large-particle impurities in the sedimentation chamber will not flow out with the water flow, avoiding affecting the separation effect of the iron filings and impurities, and facilitating subsequent water purification operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a cross-sectional schematic diagram of an embodiment of the utility model;

[0013] Figure 2 It is a schematic top view of a stirring member according to an embodiment of the utility model. DETAILED DESCRIPTION

[0014] The following is a detailed description of the preferred implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0015] In the description of the present utility model, unless otherwise specified, "multiple" means two or more than two; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present utility model and simplifying the description, and does 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 cannot be understood as a limitation on the present utility model. In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0016] like Figure 1-2As shown, a coking wastewater impurity separation device of this embodiment includes a separation tank 1, a water adding chamber 2 is arranged inside the separation tank 1, an annular sedimentation chamber 3 is arranged on the periphery of the water adding chamber 2, a sewage outlet 31 is arranged at the bottom of the sedimentation chamber 3, a water adding port 21 and a drainage port 22 are arranged on the upper and lower sides of the water adding chamber 2, a plurality of through holes 23 connected with the sedimentation chamber 3 are arranged on the periphery of the water adding chamber 2, a vertical shaft 24 is arranged in the water adding chamber 2, a stirring member 25 is arranged on the vertical shaft 24, and a driving member 24 is arranged on the top of the separation tank 1. Device 11; In this embodiment, the driving device 11 is a motor, which drives the vertical shaft 24 to rotate, and stirs the vortex in the water adding chamber 2 through the stirring member 25, and the iron filings and large impurities flow to the periphery through the centrifugal force, enter the sedimentation chamber 3 through the through hole 23, and then deposit downward in the sedimentation chamber 3; when draining water, the iron filings and large impurities in the sedimentation chamber 3 will not flow out with the water flow, so as to avoid affecting the separation effect of the iron filings and impurities, and facilitate the subsequent water purification operation; after draining water, the impurity iron filings deposited in the sedimentation chamber 3 can be discharged through the sewage outlet 31;

[0017] Preferably, a conical bevel 26 is provided on the inner wall of the water adding chamber 2 at a position matching the through hole 23, and iron filings and impurities can be guided by the bevel 26 and enter the deposition chamber 3 through the through hole 23;

[0018] Preferably, the bottom of the water adding chamber 2 is set to be conical, and the drain port 22 is set at the bottom of the water adding chamber 2 to facilitate drainage; when the vortex is generated, the iron filings and impurities at the bottom of the water adding chamber 2 can also flow along the through hole 23 facing the outer periphery of the conical surface at the bottom of the water adding chamber 2;

[0019] Preferably, a plurality of stirring members 25 are provided on the vertical shaft 24 at a height corresponding to the through hole 23;

[0020] Preferably, the stirring member 25 is a plurality of arc-shaped blades uniformly arranged on the vertical shaft 24 along the circumferential direction, and the swirl effect is increased by the rotation of the arc-shaped blades;

[0021] Preferably, a spiral chute 32 is provided on the inner wall of the outer periphery of the sedimentation chamber 3, and the opening width of the chute 32 is smaller than the width inside the chute 32. After iron filings and impurities enter the sedimentation chamber 3, they can enter the chute 32 by centrifugal force, and then can be deposited downward following the flow direction of the chute 32. The small opening width of the chute 32 can prevent iron filings and impurities from flowing out of the chute 32.

[0022] Preferably, a slope is provided at the bottom of the deposition chamber 3 , and a drain port 31 is provided at the bottom of the slope to facilitate the discharge of impurities deposited in the deposition chamber 3 .

[0023] The embodiments of the present invention are provided for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and thereby design various embodiments with various modifications suitable for specific uses.

Claims

1. A coking wastewater impurity separation device, characterized in that: It includes a separation tank, a water adding chamber is arranged on the inner side of the separation tank, an annular sedimentation chamber is arranged on the outer periphery of the water adding chamber, a sewage outlet is arranged on the bottom of the sedimentation chamber, a water adding port and a drain outlet are arranged on the upper and lower sides of the water adding chamber respectively, a plurality of through holes connected with the sedimentation chamber are arranged on the outer periphery of the water adding chamber, a vertical shaft is arranged in the water adding chamber, a stirring member is arranged on the vertical shaft, and a driving device for driving the vertical shaft to rotate is arranged on the top of the separation tank.

2. The coking wastewater impurity separation device according to claim 1, characterized in that: A conical bevel is arranged on the inner wall of the water adding chamber at a position matching the through hole.

3. The coking wastewater impurity separation device according to claim 1 is characterized by: The bottom of the water adding chamber is arranged in a cone shape, and the drain port is arranged at the bottom of the water adding chamber.

4. The coking wastewater impurity separation device according to claim 1, characterized in that: A plurality of stirring members are arranged on the vertical axis corresponding to the height of the through holes.

5. The coking wastewater impurity separation device according to claim 1, characterized in that: The stirring member is a plurality of arc-shaped blades uniformly arranged on the vertical axis along the circumferential direction.

6. The coking wastewater impurity separation device according to claim 1, characterized in that: A spiral chute is arranged on the inner wall of the outer circumference of the deposition chamber, and the opening width of the chute is smaller than the width inside the chute.

7. The coking wastewater impurity separation device according to claim 1, characterized in that: The bottom of the sedimentation chamber is provided with a slope, and the sewage outlet is arranged at the bottom of the slope.

Images