CN-122006334-A - Solid-liquid separation device

CN122006334ACN 122006334 ACN122006334 ACN 122006334ACN-122006334-A

Abstract

The application provides a solid-liquid separation device, which relates to the technical field of water-liquid treatment, and comprises a tank body, a liquid inlet pipe, a waste discharge pipe, a filtering part and a liquid outlet pipe, wherein when mixed liquid flows into a separation cavity of the tank body from the liquid inlet pipe at a high speed, the mixed liquid can flow along a first inner peripheral surface of the tank body to form a spiral circulation which flows around a central line of the tank body and flows towards a second end part, solid particles in the mixed liquid gradually gather towards the first inner peripheral surface of the tank body under the action of centrifugal force generated by the spiral circulation, so that the mixed liquid is separated into a first mixed liquid flow and a second mixed liquid flow, the second mixed liquid flow can be discharged outwards from the waste discharge pipe, the filtering part can filter the first mixed liquid flow into a clean liquid flow, and the clean liquid flow can outwards flow from the liquid outlet pipe, so that the solid-liquid separation device can filter the mixed liquid into the clean liquid, has a better filtering effect, does not need external power driving, can greatly reduce energy consumption, and has a simple structure and low filtering cost.

Inventors

TU HANYANG
XIE CHENG
YANG QUAN

Assignees

长沙华实半导体有限公司

Dates

Publication Date: 20260512
Application Date: 20260408

Claims (10)

1. A solid-liquid separation apparatus, comprising: the tank body is provided with a separation cavity and a first inner peripheral surface surrounding the separation cavity, and the tank body is also provided with a first end part and a second end part which are arranged along the extending direction of the central line of the separation cavity; a liquid inlet pipe connected with the first end part, wherein the liquid inlet pipe is obliquely arranged from the first end part to a direction away from the second end part, the liquid inlet pipe is communicated with the separation cavity, the liquid inlet pipe is used for guiding mixed liquid to flow into the separation cavity and flow along the first inner peripheral surface so as to form a spiral circulation which flows around the central line and flows towards the second end part, and the mixed liquid is separated into a first mixed liquid flow close to the central line and a second mixed liquid flow close to the first inner peripheral surface, and the solid-liquid ratio of the first mixed liquid flow is smaller than that of the second mixed liquid flow; A waste pipe connected to the second end and in communication with the separation chamber, the waste pipe for directing the second mixture in the separation chamber to drain outwardly; The filtering part is arranged in the separation cavity and is positioned in the central area of the separation cavity, and the filtering part is used for filtering the first mixed liquid flow to form a net liquid flow; the liquid outlet pipe is communicated with the filtering part and used for guiding the clean liquid to flow out of the separation cavity.
2. The solid-liquid separation device according to claim 1, wherein the liquid inlet pipe has a first axis, and the liquid inlet pipe is configured to guide the mixed liquid to flow into the separation chamber in an extending direction of the first axis; The first axis and the central line form an included angle, and the first axis and the central line form a first included angle a, wherein a is more than or equal to 30 degrees and less than or equal to 45 degrees.
3. The solid-liquid separator according to claim 2, wherein in the extending direction of the center line, the projection of the first axis is a first straight line, the projection of the first inner peripheral surface is a first circular line, the first straight line intersects the first circular line at a first point, and the first circular line has a first tangential line passing through the first point; wherein the extending direction of the first straight line is parallel to the extending direction of the first tangent line, or The first straight line and the first tangent line form an included angle, and the first straight line and the first tangent line form a second included angle b, wherein b is 0 degrees < b is less than or equal to 5 degrees.
4. The solid liquid separation device of claim 1, wherein the liquid inlet pipe comprises: A first tube segment connected to the first end and in communication with the separation chamber; The second pipe section is connected with the first pipe section, the diameter of the second pipe section is larger than that of the first pipe section, and the diameter of the second pipe section gradually becomes smaller along the direction close to the first pipe section.
5. The solid-liquid separation device according to claim 1, wherein a baffle is provided on the first inner peripheral surface, the baffle extending spirally around the center line, the baffle being for guiding the mixed liquid to flow spirally around the center line.
6. The solid liquid separator according to claim 5, wherein an end of the baffle adjacent to the second end extends to a junction of the waste pipe and the tank.
7. The solid liquid separation device of claim 1, wherein the waste pipe has a second axis, the waste pipe being adapted to direct the second mixed liquid stream to exit the separation chamber along an extension of the second axis; wherein, in the extending direction of the central line, the projection of the second axis is a second straight line, the projection of the first inner peripheral surface is a first round line, the second straight line intersects with the first round line at a second point, and the first round line is provided with a second tangent line passing through the second point; The extending direction of the second straight line is parallel to the extending direction of the second tangent line, or The second straight line and the second tangent line form an included angle, and the second straight line and the second tangent line form a third included angle c, wherein c is 0 degrees < c is less than or equal to 5 degrees.
8. The solid liquid separation device of claim 1, wherein the liquid inlet pipe is connected to a first location of the tank and the waste pipe is connected to a second location of the tank; the filtering part is positioned between the first position and the second position, and the distance between the filtering part and the first position is larger than the distance between the filtering part and the second position along the extending direction of the central line.
9. The solid-liquid separation device according to claim 1, further comprising: The flow sensor is arranged in the liquid outlet pipe and is used for monitoring the flow of the net liquid flow; The regulating valve is arranged in the liquid outlet pipe and is electrically connected with the flow sensor.
10. The solid-liquid separation device according to claim 1, wherein the liquid outlet pipe is detachably connected to the filtering portion.

Description

Solid-liquid separation device Technical Field The application relates to the technical field of water and liquid treatment, in particular to a solid-liquid separation device. Background At present, CNC grinding fluid is special industrial cooling fluid which is specially matched with CNC numerical control grinding machine, and in the use process, the grinding fluid is easy to mix with impurities such as material scraps, grinding wheel abrasives and the like, so that the machining precision and the product yield are affected. In the related art, a solid-liquid separation device for CNC grinding fluid mainly includes a paper filter, a magnetic filter, a centrifugal separator, and the like. However, the paper filter device has limited filtering precision, the filter element needs to be replaced frequently, the operation cost is high, the maintenance is complicated, the magnetic filter device can only remove magnetic solid impurities, the filtering effect on non-magnetic grinding wheel abrasive materials and other impurities is extremely poor, the high-precision processing requirement is difficult to meet, the traditional centrifugal separation device mostly needs external power (such as a motor) to drive a centrifugal mechanism to operate, the energy consumption is high, the structure is complex, the occupied area is large, and meanwhile, the problem of insufficient centrifugation exists. Disclosure of Invention In view of this, the embodiment of the application provides a solid-liquid separation device, which aims to make the solid-liquid separation device have a better filtering effect and also reduce energy consumption. The present application provides a solid-liquid separation device, comprising: the tank body is provided with a separation cavity and a first inner peripheral surface surrounding the separation cavity, and the tank body is also provided with a first end part and a second end part which are arranged along the extending direction of the central line of the separation cavity; a liquid inlet pipe connected with the first end part, wherein the liquid inlet pipe is obliquely arranged from the first end part to a direction away from the second end part, the liquid inlet pipe is communicated with the separation cavity, the liquid inlet pipe is used for guiding mixed liquid to flow into the separation cavity and flow along the first inner peripheral surface so as to form a spiral circulation which flows around the central line and flows towards the second end part, and the mixed liquid is separated into a first mixed liquid flow close to the central line and a second mixed liquid flow close to the first inner peripheral surface, and the solid-liquid ratio of the first mixed liquid flow is smaller than that of the second mixed liquid flow; A waste pipe connected to the second end and in communication with the separation chamber, the waste pipe for directing the second mixture in the separation chamber to drain outwardly; The filtering part is arranged in the separation cavity and is positioned in the central area of the separation cavity, and the filtering part is used for filtering the first mixed liquid flow to form a net liquid flow; the liquid outlet pipe is communicated with the filtering part and used for guiding the clean liquid to flow out of the separation cavity. In some embodiments, the liquid inlet pipe has a first axis, and the liquid inlet pipe is used for guiding the mixed liquid to flow into the separation cavity along the extending direction of the first axis; The first axis and the central line form an included angle, and the first axis and the central line form a first included angle a, wherein a is more than or equal to 30 degrees and less than or equal to 45 degrees. In some embodiments, in the extending direction of the center line, the projection of the first axis is a first straight line, the projection of the first inner peripheral surface is a first circular line, the first straight line intersects the first circular line at a first point, and the first circular line has a first tangent line passing through the first point; wherein the extending direction of the first straight line is parallel to the extending direction of the first tangent line, or The first straight line and the first tangent line form an included angle, and the first straight line and the first tangent line form a second included angle b, wherein b is 0 degrees < b is less than or equal to 5 degrees. In some embodiments, the feed tube comprises: A first tube segment connected to the first end and in communication with the separation chamber; The second pipe section is connected with the first pipe section, the diameter of the second pipe section is larger than that of the first pipe section, and the diameter of the second pipe section gradually becomes smaller along the direction close to the first pipe section. In some embodiments, a baffle is disposed on the first inner peripheral surface, the baffle ex