CN216191843U

CN216191843U - Dirty separating centrifuge of centrifugal excrement

Info

Publication number: CN216191843U
Application number: CN202123193580.5U
Authority: CN
Inventors: 赵峰; 薛世浩; 陈海涛
Original assignee: Dingzhou Sifeng Environmental Protection Technology Co ltd
Current assignee: Dingzhou Sifeng Environmental Protection Technology Co ltd
Priority date: 2021-12-20
Filing date: 2021-12-20
Publication date: 2022-04-05
Anticipated expiration: 2031-12-20

Abstract

The utility model provides a centrifugal manure separator, which comprises: the device comprises a shell, a solid discharge port and a liquid discharge port, wherein the shell is provided with a feed inlet, a solid discharge port and a liquid discharge port; a screen positioned within the housing, the screen being disposed about a first axis to define a first chamber and being rotatable about the first axis, the screen and the housing defining a second chamber therebetween; the blade is used for conveying the solid part of the manure to the solid discharge hole, and the blade is fixed on the screen and extends towards the second chamber; the feed inlet and the solid discharge port are communicated with the second chamber, and the liquid discharge port is communicated with the first chamber.

Description

Dirty separating centrifuge of centrifugal excrement

Technical Field

The utility model relates to the field of separation, in particular to the field of feces separation.

Background

In the process of treating the manure, solid-liquid separation of the manure is usually required. Currently, for liquid manure with a large moisture content, such as pig manure, relatively viscous part of the liquid manure cannot be well separated preliminarily, so a device for treating the liquid manure with the large moisture content is needed.

SUMMERY OF THE UTILITY MODEL

Accordingly, the present invention provides a centrifugal manure separator capable of separating relatively viscous components from liquid manure.

The centrifugal manure separator provided by the embodiment of the utility model comprises a shell, wherein a feed inlet, a solid discharge outlet and a liquid discharge outlet are formed in the shell; a screen positioned within the housing, the screen being disposed about a first axis to define a first chamber and being rotatable about the first axis, the screen and the housing defining a second chamber therebetween; the blade is used for conveying the solid part of the manure to the solid discharge hole, is fixed on the screen and extends to the second chamber in the circumferential direction of the screen; the feed inlet and the solid discharge port are communicated with the second chamber, and the liquid discharge port is communicated with the first chamber.

Through setting up the screen cloth, the liquid part in the liquid excrement is dirty can permeate the screen cloth and gets into first cavity, and the great solid particle of volume then can not permeate the screen cloth and stop on the screen cloth surface or stop in the second cavity in the liquid excrement is dirty, and then plays the initial gross separation to the excrement.

The centrifugal force generated by the rotating screen can throw solid particles staying or blocking in the mesh of the screen into the second chamber, so that the screen is cleaned and the screen is prevented from being blocked.

Since the solid particles are of greater mass than the liquid, the solid particles will be closer to the side wall of the housing than the liquid under the influence of centrifugal force, i.e. in the second chamber, and further the moisture content of the fecal sewage close to the side wall of the housing will be lower than the moisture content of the fecal sewage close to the first axis, thereby achieving a further separation of the fecal sewage.

Meanwhile, the blades can generate thrust in the directions of the solid discharge port and the liquid discharge port when rotating, so that the part with lower moisture content in the excrement can be pushed to the solid discharge port, and the part with higher moisture content is discharged through the liquid discharge port, thereby realizing the solid-liquid separation of the excrement;

in addition, the rotational flow generated by the blades during rotation can also play a role in cleaning the screen, so that the solid components in the excrement are prevented from blocking the screen.

In one possible implementation, a pressure sensor is further included for determining the pressure in the housing.

In a possible implementation manner, the device further comprises a controller, the controller is used for stopping conveying the excrement from the feeding hole to the second chamber when the pressure in the shell is larger than a preset value, and the solid discharging hole is opened.

In a possible implementation manner, the device further comprises a controller, the controller is used for continuously conveying the excrement from the feeding hole to the second chamber when the pressure in the shell is larger than a preset value, and the solid discharging hole is opened.

Through above-mentioned setting, can be discharging the solid part in the liquid excrement to the casing, realize the dirty separation of liquid excrement.

In one possible implementation, the pressure at the feed inlet is 0.3Mpa to 0.5 Mpa.

Through the arrangement, the flow and the efficiency of filtered water (liquid part in excrement) filtered by the screen can be ensured.

In one possible implementation manner, the method further includes: and the pushing plate is fixed on the screen and extends to the second chamber, and the surface of the pushing plate faces the solid discharge port.

Through the arrangement, the solid dung accumulated near the solid discharge hole can be further pushed out of the solid discharge hole.

In a possible implementation manner, the opening directions of the feed inlet and the liquid outlet are parallel to the first axis, and the opening directions of the feed inlet and the liquid outlet are opposite to each other.

In one possible implementation, the rotation speed of the screen is greater than 3000 r/min.

In one possible implementation, the opening direction of the solids outlet is perpendicular to the first axis.

In one possible implementation, the housing and the first chamber are cylindrical, and the first axis is located on a central axis of the cylinder.

Drawings

Fig. 1 is a schematic structural diagram of a centrifugal manure separator provided in an embodiment of the present application.

Fig. 2 is a reference diagram of the working state of a centrifugal manure separator provided by the embodiment of the application.

Detailed Description

Hereinafter, specific embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a centrifugal manure separator provided in an embodiment of the present application. As shown in fig. 1, a centrifugal manure separator provided in an embodiment of the present application includes: the device comprises a shell 1, wherein a feed inlet 11, a solid discharge outlet 12 and a liquid discharge outlet 13 are formed in the shell 1; a screen 2 located in the housing 1 for filtering out a solid fraction of the manure, the screen 2 being arranged around a first axis a1 to form a first chamber 21, the screen 2 and the housing 1 forming a second chamber 22, the screen 2 being rotatable around a first axis a 1; and a blade 3 for conveying the solid fraction of the manure to the solids outlet, the blade 3 being secured to the screen 2 and extending towards the second chamber 22; wherein the inlet 11 and the solid outlet 12 are in communication with the second chamber 22, and the liquid outlet 13 is in communication with the first chamber 21. Optionally, the feed inlet 11 is located at one end of the housing 1, and the solid discharge outlet 12 and the liquid discharge outlet 13 are located at the other end of the housing 1. The opening directions of the feed inlet 11 and the liquid outlet 13 are parallel to the first axis a1, and the opening directions of the feed inlet and the liquid outlet are opposite.

In some embodiments, as shown in fig. 1, further comprising: and the pushing plate 5 is used for pushing the solid manure filtered into the second chamber 22 to the solid discharge hole 12. The material pushing plate 5 is fixed to the screen 2 and extends towards the second chamber 22, and the plate surface of the material pushing plate 5 faces the solid discharge hole 12.

In some embodiments, as shown in fig. 1, the housing 1 is cylindrical when viewed from the outside, the first axis a1 is located on the central axis of the cylinder, the screen 2 is surrounded in a cylindrical shape, and the first chamber surrounded by the screen 2 is cylindrical. The feed inlet 11 is located on one bottom surface of the cylindrical shell 1, the liquid discharge outlet 13 is located on the center of the other bottom surface of the cylindrical shell 1, and the solid discharge outlet 12 is located on the side wall of the cylindrical shell 1 and can extend out relative to the cylindrical side wall. Of course, the housing 1 may have other prism shapes, such as a quadrangular prism, a pentagonal prism, an elliptic cylinder, and the like.

In some embodiments, as shown in fig. 1, the centrifugal manure separator further comprises a pressure sensor 4 for determining the pressure in the housing 1. Specifically, the pressure sensors may be respectively disposed at the feed port and the liquid discharge port, so as to determine a pressure difference between the pressure sensors and the liquid discharge port.

When the manure separation is performed, the manure is transported from the feed opening 11 into the housing 1 by means of a feed pump (not shown), while the screen 2 and the blades 3 are controlled to rotate about the first axis a1, optionally at a rotational speed of more than 3000 r/min. The pressure that the charge pump produced can promote the excrement dirty inside that gets into casing 1, and then promotes the filter of screen cloth to excrement dirt, promotes filtration efficiency. The liquid and the less solid of granule in the excrement is dirty can permeate the screen cloth and get into first cavity, and the great solid particle of volume then can not permeate the screen cloth and stop on the screen cloth surface or stop in the second cavity in the excrement is dirty, and then plays the initial gross separation to the excrement.

The centrifugal force generated by the rotating screen 2 can throw solid particles that have settled or blocked in the mesh of the screen 2 into the second chamber 22, thereby cleaning the screen 2 and avoiding the screen 2 from being blocked.

Due to the larger mass of the solid particles than the liquid, the solid particle fraction S will be closer to the side wall of the housing 1, i.e. in the second chamber 22, than the liquid under the influence of the centrifugal force, while the lighter liquid fraction L will be closer to the first axis a1, (as shown in fig. 2), and further the moisture content of the manure near the side wall of the housing 1 will be lower than the moisture content of the manure near the first axis a1, and further separation of the manure will be achieved.

Meanwhile, the blades 3 can generate thrust in the directions of the solid discharge port 12 and the liquid discharge port 13 when rotating, so that the part with low moisture content in the excrement can be pushed to the solid discharge port 12, and the part with high moisture content is discharged through the liquid discharge port 13, thereby realizing solid-liquid separation of the excrement.

In addition, the rotational flow generated by the blades 3 during rotation also plays a role in cleaning the screen 3, so that solid particles in the excrement are prevented from blocking the screen 3.

When the pressure difference between the feed inlet 11 and the discharge outlet 12 in the shell 1 is greater than a preset threshold value, the solid discharge outlet 12 and the liquid discharge outlet 13 are opened; and (3) closing the feeding pump, or closing the feeding port 11, closing the solid discharging port 12 after the part with smaller moisture in the excrement is discharged from the second chamber, opening the feeding pump for feeding, and circulating the steps.

In some embodiments, when the pressure in the housing 1 is greater than a preset threshold, the solid discharge port and the liquid discharge port are opened; and (3) keeping the feeding pump open (namely, continuously conveying the dung into the second chamber), closing the solid discharge port after the solid dung is discharged from the second chamber, opening the feeding pump for feeding, and circulating.

In some embodiments, the pressure at the feed inlet is between 0.3Mpa and 0.5Mpa, thereby ensuring the flow rate and efficiency of the filtered water (liquid fraction in the fecal sewage) filtered by the screen.

It will be appreciated that the above described actions of the centrifugal manure separator are performed under the control of a controller provided therewith.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. A centrifugal manure separator, comprising:

the device comprises a shell, a solid discharge port and a liquid discharge port, wherein the shell is provided with a feed inlet, a solid discharge port and a liquid discharge port;

a screen positioned within the housing, the screen being disposed about a first axis to define a first chamber and being rotatable about the first axis, the screen and the housing defining a second chamber therebetween; and

a blade for conveying a solid fraction of the manure to the solids outlet, the blade being secured to the screen and extending in a circumferential direction of the screen towards the second chamber;

the feed inlet and the solid discharge port are communicated with the second chamber, and the liquid discharge port is communicated with the first chamber.

2. The centrifugal manure separator of claim 1, further comprising a pressure sensor for determining the pressure in the housing.

3. The centrifugal manure separator of claim 2, further comprising a controller for stopping the transfer of manure from the inlet port into the second chamber when the pressure in the housing is greater than a preset value, the solids outlet port being open.

4. The centrifugal manure separator of claim 2, further comprising a controller for continuing to convey manure from the inlet port into the second chamber when the pressure in the housing is greater than a preset value, the solids outlet port being open.

5. The centrifugal manure separator according to claim 2, wherein the pressure at the inlet is 0.3-0.5 Mpa.

6. The centrifugal manure separator of claim 1, further comprising: and the pushing plate is fixed on the screen and extends to the second chamber, and the surface of the pushing plate faces the solid discharge port.

7. The centrifugal manure separator according to claim 1, wherein the opening directions of the inlet and the liquid outlet are parallel to the first axis, and the opening directions of the inlet and the outlet are opposite.

8. The centrifugal manure separator according to claim 1, wherein the rotation speed of the screen is greater than 3000 r/min.

9. The centrifugal manure separator of claim 1, wherein the opening direction of the solids discharge outlet is perpendicular to the first axis.

10. The centrifugal manure separator of claim 1, wherein the housing and the first chamber are cylindrical, the first axis being located on a central axis of the cylinder.