Centrifugal machine capable of thoroughly separating solid and liquid

Abstract

The utility model relates to a centrifugal machine capable of separating solid and liquid thoroughly, which comprises a centrifugal machine body, a liquid outlet pipe for discharging filtrate is arranged at the bottom of an outer barrel of the centrifugal machine body, a turbidity detector for detecting the filtrate in the pipe is arranged on a pipeline of the liquid outlet pipe close to the outer barrel, and a three-way electromagnetic valve is arranged on the pipeline of the liquid outlet pipe close to a liquid outlet. The other outlet of the three-way electromagnetic valve is communicated with a liquid return pipe, the liquid return pipe is connected to the feeding pipe of the centrifugal machine body through a water pump, and when the turbidity detector detects that particles in the liquid outlet pipe meet the requirement, the three-way electromagnetic valve conveys filtrate back into the centrifugal machine body through the liquid return pipe. The turbidity detector and the three-way electromagnetic valve are additionally arranged on the liquid outlet pipe of the centrifugal machine body, when the turbidity detector detects that the content of material particles in filtrate reaches a set value, the three-way electromagnetic valve sends the filtrate into the liquid return pipe, the water pump guides the filtrate back into the centrifugal machine body, the filtrate is filtered again, and the filtrate can be automatically circulated and filtered again.

Description

Technical Field

[0001] The utility model relates to the technical field of centrifuges, in particular to a centrifuge with thorough solid-liquid separation. Background Art

[0002] A centrifuge is a machine that uses centrifugal force to separate filtrate from solid particles or the components of a filtrate-filtrate mixture. During solid-liquid separation, during the initial stages of centrifugation, smaller particles can flow out of the filter holes in the inner drum, causing material loss. Excessive particles in the discharged filtrate are also detrimental to discharge. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a centrifuge with thorough solid-liquid separation, so as to solve the problem of waste caused by outflow of smaller particle materials during centrifugation.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0005] A centrifuge with thorough solid-liquid separation comprises a centrifuge body, an outlet pipe for discharging filtrate is provided at the bottom of an outer barrel of the centrifuge body, a turbidity detector for detecting filtrate in the pipe is provided on the outlet pipe near the outer barrel, a three-way solenoid valve is provided on the outlet pipe near the liquid outlet, the other outlet of the three-way solenoid valve is connected to a return pipe, and the return pipe is connected to a feed pipe of the centrifuge body through a water pump. When the turbidity detector detects that the particles inside the outlet pipe meet the requirements, the three-way solenoid valve transports the filtrate back to the interior of the centrifuge body through the return pipe.

[0006] As a preferred embodiment, the liquid outlet pipe is provided as a transparent tube at the turbidity detector, and the transparent tube is in the shape of a downwardly curved semicircular arc.

[0007] As a preferred embodiment, the turbidity detector includes a light source transmitter and a light receiver, and the light source transmitter and the light receiver are respectively arranged at the top and bottom of the lowest part of the transparent tube.

[0008] As a preferred embodiment, the liquid outlet pipe of the turbidity detector is arranged in a light-proof box.

[0009] As a preferred embodiment, the liquid return pipe and the three-way solenoid valve are installed through a quick-release connector.

[0010] The beneficial effect of the utility model is that by adding a turbidity detector and a three-way solenoid valve to the liquid outlet pipe of the centrifuge body, when the turbidity detector detects that the material particle content in the filtrate reaches a set value, the three-way solenoid valve sends the filtrate to the return pipe, and the water pump guides the filtrate back into the centrifuge body for re-filtration, thereby automatically realizing the re-circulation filtration of the filtrate. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The specific embodiments of the present invention are further described in detail below with reference to the accompanying drawings, wherein:

[0012] Figure 1 It is a structural diagram of the utility model;

[0013] Figure 1 Explanation of the reference numerals in the accompanying drawings: 1. Centrifuge body; 2. Door cover; 3. Feed pipe; 4. Water pump; 5. Liquid outlet; 6. Three-way solenoid valve; 7. Transparent tube; 8. Light transmitter; 9. Light receiver; 10. Light-proof box; 11. Outer barrel; 12. Liquid outlet pipe; 13. Liquid return pipe. DETAILED DESCRIPTION

[0014] The specific implementation scheme of the present utility model is described in detail below with reference to the accompanying drawings.

[0015] like Figure 1 The centrifuge with complete solid-liquid separation shown in the figure includes a centrifuge body 1, a liquid outlet pipe 12 for discharging the filtrate is provided at the bottom of the outer barrel 11 of the centrifuge body 1, a turbidity detector for detecting the filtrate in the tube is provided on the pipeline of the liquid outlet pipe 12 near the outer barrel 11, a three-way solenoid valve 6 is provided on the pipeline of the liquid outlet pipe 12 near the liquid outlet 5, and the other outlet of the three-way solenoid valve 6 is connected to a return pipe 13, and the return pipe 13 is connected to the feed pipe 3 of the centrifuge body 1 through a water pump 4. When the turbidity detector detects that the particles inside the liquid outlet pipe 12 meet the requirements, the three-way solenoid valve 6 transports the filtrate back to the interior of the centrifuge body 1 through the return pipe 13.

[0016] Specifically, a turbidity meter and a three-way solenoid valve 6 are added to the liquid outlet pipe 12. The turbidity meter is electrically connected to a controller. When the discharged filtrate contains a large number of material particles, the turbidity meter can detect that the filtrate has met the set requirements and send a signal to the controller. The controller controls the conduction direction of the three-way solenoid valve, starting the water pump 4. The filtrate is no longer discharged from the liquid outlet 5. The filtrate returns to the centrifuge body 1 through the return pipe 13 for centrifugal filtration. At this time, the material attached to the inner drum is retained, and even smaller particles of material can be retained. When the turbidity meter detects that the particle content in the filtrate is less than the set value, the three-way solenoid valve 6 discharges the filtrate from the liquid outlet 5.

[0017] The outlet pipe 12 is provided with a transparent tube 7 at the turbidity detector. The transparent tube 7 is in the shape of a downwardly curved semicircle. The transparent tube 7 facilitates the turbidity detector to illuminate the inside of the tube and detect the particle content of the filtrate in the tube.

[0018] Further, the turbidity detector includes a light source emitter 8 and a light receiver 9, which are respectively arranged opposite to each other at the top and bottom of the lowest part of the transparent tube 7. The light source emitter 8 irradiates through the transparent tube 7, and the imaging is projected onto the light receiver 9 to measure the content of filtrate particles in the transparent tube 7.

[0019] In addition, the liquid outlet pipe 12 at the turbidity detector is arranged in the light-shielding box 10 to reduce the influence of external light sources on the turbidity detector.

[0020] Furthermore, the return pipe 13 is installed with the three-way solenoid valve 6 through a quick-release joint, which is convenient for installation and maintenance.

[0021] The transparent tube 7 with a return bend structure can ensure that its interior is filled with filtrate to ensure the accuracy of the detection results of the turbidity detector. If the problem of emptying the transparent tube 7 is considered, an emptying port, an emptying pipe and an emptying valve can be provided at the bottom of the transparent tube 7. The light source emitter 8 and the light receiver 9 can also be horizontally arranged on both sides of the bottom arc section of the transparent tube 7 to avoid the arrangement of the emptying pipe. Since emptying the transparent tube 7 is not the technical problem to be solved by the present utility model, no further detailed description is made in this embodiment.

[0022] The working process of the present utility model is as follows:

[0023] As shown in Figure 1, when the filtrate is discharged from the liquid outlet 5 in the liquid outlet pipe 12, the turbidity detector detects the filtrate in the pipe to determine whether it reaches the set value. If the turbidity of the filtrate does not meet the standard, the controller of the centrifuge controls the three-way solenoid valve 6 to conduct the return pipe 13, so that the filtrate returns to the centrifuge body 1 through the return pipe 13 for re-filtration. If the turbidity of the filtrate meets the standard, the liquid outlet 5 is conducted to discharge the filtrate from the liquid outlet 5.

[0024] In the initial stage of filtration, since there are some fine particles in the solid-liquid mixed material, they are easily passed through the clean filter cloth and discharged with the filtrate. As the filtration progresses, the large particle solid materials accumulate and bridge on the surface of the filter cloth, thereby blocking the passage of smaller particle materials and making the discharged filtrate clean. The three-way solenoid valve 6 is controlled by the controller of the centrifuge. The controller compares the detection result of the turbidity detector with the preset value and controls the three-way solenoid valve 6 to make corresponding actions.

[0025] The above embodiments only illustrate the principle and efficacy of the present utility model creatively, as well as some applied embodiments, rather than being used to limit the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the creative concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model.

Claims

1. A centrifuge with complete solid-liquid separation, characterized in that It includes a centrifuge body (1). At the bottom of the outer barrel (11) of the centrifuge body (1), there is a liquid outlet pipe (12) for discharging filtrate. A turbidity detector for detecting the filtrate in the pipe is arranged on the pipeline of the liquid outlet pipe (12) near the outer barrel (11). A three-way solenoid valve (6) is arranged on the pipeline of the liquid outlet pipe (12) near the liquid outlet (5). The other outlet of the three-way solenoid valve (6) is connected to a liquid return pipe (13). The liquid return pipe (13) is connected to the feed pipe (3) of the centrifuge body (1) through a water pump (4). When the turbidity detector detects that the particles inside the liquid outlet pipe (12) reach the requirement, the three-way solenoid valve (6) conveys the filtrate back to the inside of the centrifuge body (1) through the liquid return pipe (13).

2. The centrifuge with complete solid-liquid separation according to claim 1, characterized in that, The pipeline of the liquid outlet pipe (12) is set as a transparent pipe (7) at the turbidity detector, and the transparent pipe (7) is a downward-bending semi-circular arc shape.

3. The centrifuge with complete solid-liquid separation according to claim 2, characterized in that, The turbidity detector includes a light source emitter (8) and a light receiver (9), and the light source emitter (8) and the light receiver (9) are respectively oppositely arranged at the top and bottom of the lowest part of the transparent pipe (7).

4. The centrifuge with complete solid-liquid separation according to claim 3, characterized in that, The liquid outlet pipe (12) at the turbidity detector is arranged inside a light-shielding box (10).

5. The centrifuge with complete solid-liquid separation according to claim 1, characterized in that, The liquid return pipe (13) and the three-way solenoid valve (6) are installed through a quick-release joint.

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