CN218841914U

CN218841914U - Extrusion separation device

Info

Publication number: CN218841914U
Application number: CN202222917045.8U
Authority: CN
Inventors: 李鹏; 卢骏; 周彧; 张雨曼; 马清扬; 王进; 芮丽蓉
Original assignee: Wuhan University of Technology WUT
Current assignee: Wuhan University of Technology WUT
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-04-11
Anticipated expiration: 2032-10-31

Abstract

The utility model discloses an extrusion separation device, barrel including pivot and being used for splendid attire red mud, the pivot sets up along the axial of barrel, be equipped with the air inlet that is used for letting in carbon dioxide gas on the barrel, be equipped with filter and the baffle that is used for extrudeing the red mud in the barrel, one side of filter links to each other with the pivot, the inner wall of another side direction barrel extends, one side of baffle links to each other with the inner wall of barrel, another side direction pivot extends, form the space that is used for extrudeing the red mud between baffle and the filter, be equipped with in the barrel and be used for driving the pivot and around the rotatory actuating lever of axial, be equipped with the piston on the barrel, the radial reciprocating motion of barrel is followed to the piston, the one end and the piston of actuating lever link to each other, the other with the periphery of pivot, this extrusion separation device can let in carbon dioxide gas when extrusion red mud carries out solid-liquid separation, realize the further carbonization of red mud, the treatment effect of red mud has been improved, obtain the red mud of abundant dehydration, help the use on next step of red mud, avoid polluting the environment.

Description

Extrusion separation device

Technical Field

The utility model is used for solid-liquid separation equipment technical field especially relates to an extrusion separator.

Background

The red mud is industrial solid waste generated in the industrial production process of alumina, and if the red mud is not treated, the environment can be polluted by strong alkali, heavy metal and the like, at present, 1-2 tons of red mud can be additionally generated when each ton of alumina is produced in industrial activities on average, the red mud is red powder mud, has high water content, strong alkalinity and complex components and properties, has a micro dense porous morphological structure and presents a series of characteristics such as large surface area, and the like.

The existing wet-process carbonization alkali-reducing technology for red mud mainly uses carbon dioxide gas to directly carbonize the red mud so as to reduce the alkalinity of the red mud, but the red mud system treated by the wet-process carbonization alkali-reducing technology has the defects of a large amount of water, difficulty in solidification, difficulty in interfusion of gas-liquid phases in treatment, non-uniform liquid-solid system and the like, so that the problems of insufficient contact between the red mud and the carbon dioxide, low carbonization efficiency and difficulty in solid-liquid separation are caused, and the red mud which is not dehydrated after treatment has large water content and strong alkalinity, so that the damage to the environment is still great, and the secondary utilization is not facilitated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve one of the technical problem that exists among the prior art at least, provide an extrusion separation device, it can.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model provides an extrusion separation device, includes the pivot and is used for the barrel of splendid attire red mud, the pivot is followed the axial setting of barrel, be equipped with the air inlet that is used for letting in carbon dioxide gas on the barrel, be equipped with filter and the baffle that is used for extrudeing the red mud in the barrel, one side of filter with the pivot links to each other, and the opposite side direction the inner wall of barrel extends, one side of baffle with the inner wall of barrel links to each other, the opposite side direction the pivot extends, the baffle with form the space that is used for extrudeing the red mud between the filter, be equipped with in the barrel and be used for driving the pivot is around the rotatory actuating lever of axial, be equipped with the piston on the barrel, the piston is followed the radial reciprocating motion of barrel, the one end of actuating lever with the piston links to each other, the other end with the periphery of pivot links to each other.

Preferably, a gas tank body for storing compressed carbon dioxide is arranged outside the cylinder body, and the tank body is communicated with the cylinder body through the gas inlet.

Preferably, an air pump is arranged on the tank body.

Preferably, a shell is arranged on the periphery of the barrel, an annular channel for filling carbon dioxide gas is formed between the shell and the barrel, the air inlet is arranged around the periphery of the barrel, and the annular channel is communicated with the interior of the barrel through the air inlet.

Preferably, a connecting part is arranged between the tank body and the cylinder body, an inner cavity for the piston to reciprocate along the radial direction is arranged in the connecting part, one end of the connecting part is connected with the cylinder body, the other end of the connecting part is communicated with the tank body and the annular channel, and a storage space for temporarily storing carbon dioxide gas is formed in one side, connected with the tank body, of the piston in the connecting part.

Preferably, an air inlet pipe is arranged on the periphery of the connecting part, one end of the air inlet pipe is communicated with the annular channel, and the other end of the air inlet pipe is communicated with the storage space and the tank body.

Preferably, a mud inlet pipe is arranged on the shell, one end of the mud inlet pipe is communicated with the barrel, and the other end of the mud inlet pipe penetrates through the shell and extends outwards.

Preferably, a sludge discharge pipe is arranged on the shell and communicated with the barrel, one end of the sludge discharge pipe is arranged at the position of the outer side of the baffle, and the other end of the sludge discharge pipe penetrates through the shell and extends to the outside.

Preferably, a drain pipe is arranged on the shell and is positioned below the sludge discharge pipe.

Preferably, the filter plate comprises a filter screen and filter cloth, and the filter cloth is arranged on two sides of the filter screen.

One of the above technical solutions has at least one of the following advantages or beneficial effects: the squeezing separation device comprises a rotating shaft and a barrel, wherein an air inlet used for introducing carbon dioxide gas is formed in the barrel, so that red mud in the barrel is carbonized, a filter plate and a baffle used for extruding the red mud are arranged in the barrel, a space used for extruding the red mud is formed between the baffle and the filter plate, when the squeezing separation device is used, the rotating shaft rotates to drive the filter plate to rotate, the red mud between the baffle and the filter plate is squeezed, moisture in the red mud is filtered out through the filter plate and flows to the bottom of the barrel, a driving rod used for driving the rotating shaft to rotate around an axial direction is arranged in the barrel, a piston is arranged on the barrel and reciprocates along the radial direction of the barrel and drives the rotating shaft to rotate through the driving rod, so that the red mud is squeezed and a water phase is filtered out, the carbon dioxide gas can be introduced while the red mud is squeezed to perform solid-liquid separation, further carbonization of the red mud is realized, the red mud treatment effect is improved, the fully dehydrated red mud is obtained, the next step of using of the red mud is facilitated, and the environment is prevented from being polluted.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a schematic structural view of an embodiment of the filter plate of the present invention.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the present invention, if there is a description of directions (up, down, left, right, front and back), it is only for convenience of description of the technical solution of the present invention, and it is not intended to indicate or imply that the technical features indicated must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.

In the utility model, the meaning of "several" is one or more, the meaning of "a plurality of" is more than two, "greater than", "less than", "exceed" and so on are understood as not including the number; the terms "above", "below", "within" and the like are understood to include the instant numbers. In the description of the present invention, if there is any description of "first" and "second" only for the purpose of distinguishing technical features, it is not to be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the precedence of the indicated technical features.

In the present invention, unless otherwise explicitly defined, the terms "set", "install", "connect", and the like are to be understood in a broad sense, and for example, may be directly connected or may be indirectly connected through an intermediate medium; can be fixedly connected, can also be detachably connected and can also be integrally formed; may be mechanically coupled, may be electrically coupled or may be capable of communicating with each other; either internal to the two elements or in an interactive relationship of the two elements. The technical skill in the art can reasonably determine the specific meaning of the above words in the present invention by combining the specific contents of the technical solution.

The embodiment of the utility model provides an extrusion separator, refer to fig. 1, fig. 2, barrel 200 including pivot 100 and the red mud that is used for splendid attire, pivot 100 sets up along the axial of barrel 200, be equipped with the air inlet 210 that is used for letting in carbon dioxide gas on barrel 200, make the interior red mud of barrel 200 carbonize, be equipped with filter 300 and the baffle 400 that is used for extrudeing the red mud in the barrel 200, one side of filter 300 links to each other with pivot 100, another side is to the inner wall extension of barrel 200, one side of baffle 400 links to each other with the inner wall of barrel 200, another side is to the extension of pivot 100, form the space that is used for extruding the red mud between baffle 400 and the filter 300, when using, pivot 100 rotates, drive filter 300 rotates, be equipped with in the barrel 200 and be used for driving pivot 100 to flow to the bottom of barrel 200 through 300 filtering out, piston 600 is equipped with in the barrel 200 and is used for driving pivot 100 to drive pivot 100 to rotate, be equipped with piston 600 on the barrel 200, piston 600 is along the radial reciprocating motion of barrel 200, the one end of drive pivot 500 and the effective scraping and the water phase of extrusion separator's environment of extrusion and the red mud is avoided the extrusion to the red mud to push out the water phase to push and the water pollution because the red mud to further the red mud to the contact and the water pollution of the extrusion separator, the water pollution of the effective scraping that the extrusion separator that the water phase of the extrusion is avoided the extrusion to the red mud to the extrusion separator, the red mud that the water phase of the extrusion to further to the extrusion to take place, the contact of the extrusion separator, the water phase pollution of the extrusion is avoided the extrusion to the extrusion separator.

Referring to fig. 1, a gas tank 700 for storing compressed carbon dioxide is disposed outside the barrel 200, and the tank 700 is communicated with the barrel 200 through the gas inlet 210 to introduce carbon dioxide gas into the barrel 200 to promote red mud carbonization.

Preferably, referring to fig. 1, an air pump 710 is disposed on the tank 700, and the air pump 710 pumps the carbon dioxide gas in the tank 700 into the barrel 200.

In some embodiments, referring to fig. 1, the shell 800 is provided at the outer circumference of the drum 200, an annular channel 810 for charging carbon dioxide gas is formed between the shell 800 and the drum 200, the gas inlet 210 is provided around the outer circumference of the drum 200, the annular channel 810 communicates with the inside of the drum 200 through the gas inlet 210, and preferably, the gas inlet 210 is provided in plurality so that the carbon dioxide gas is sufficiently contacted with the red mud.

As a preferred embodiment of the present invention, referring to fig. 1, a connection member 900 is disposed between the tank 700 and the barrel 200, an inner cavity for the piston 600 to reciprocate along a radial direction is disposed in the connection member 900, one end of the connection member 900 is connected to the barrel 200, the other end is connected to the tank 700 and the annular channel 810, a storage space 910 for temporarily storing carbon dioxide is formed in one side of the connection member 900 where the piston 600 is connected to the tank 700, carbon dioxide in the tank 700 enters the storage space 910, while the piston 600 moves, carbon dioxide in the storage space 910 can be compressed, and the carbon dioxide is promoted to enter the barrel 200 through the annular channel 810 and fully contact with red mud, preferably, a through hole is disposed on the piston 600, and gas in the storage space 910 can enter the barrel 200 through the through hole.

Preferably, referring to fig. 1, an air inlet pipe 920 is disposed at the periphery of the connection part 900, one end of the air inlet pipe 920 is communicated with the annular channel 810, and the other end is communicated with the storage space 910 and the tank body 700, so as to promote carbon dioxide gas to enter the barrel 200 through the annular channel 810 and to fully contact with the red mud.

In some embodiments, referring to fig. 1, a mud inlet pipe 820 is disposed on the housing 800, one end of the mud inlet pipe 820 is communicated with the cylinder 200, and the other end extends through the housing 800 to the outside.

As a preferred embodiment of the present invention, referring to fig. 1, a mud pipe 830 is disposed on the casing 800, the mud pipe 830 is connected to the barrel 200, one end of the mud pipe 830 is disposed at the position outside the baffle 400, and the other end of the mud pipe 830 passes through the casing 800 and extends to the outside.

Referring to fig. 1, a drain pipe 840 is disposed on the casing 800, the drain pipe 840 is disposed below the sludge discharge pipe 830 and is used for discharging liquid generated by pressing the red mud, and preferably, a sensor is disposed in the drain pipe 840 and is used for sensing a change condition of the liquid in the drain pipe 840.

In some embodiments, referring to fig. 2, the filter plate 300 includes a filter screen 310 and a filter cloth 320, the filter cloth 320 is disposed on two sides of the filter screen 310, the filter screen 310 supports the filter screen 310, which is more beneficial to sufficiently extruding moisture in the red mud, the filter cloth 320 is used for fixing and protecting the filter screen 310, the filter cloth 320 has certain toughness, is not easily scratched by red mud particles, and can bear pressure generated in an extrusion process, meanwhile, the filter cloth 320 is relatively soft and can bear deformation to a certain degree, so as to further increase the fault tolerance of the extrusion separation device, which is beneficial to prolonging the service life of the extrusion separation device, the filter plate 300 is easy to clean and can be replaced in time, thereby reducing the use cost of the extrusion separation device and effectively separating moisture in the red mud.

The application method of the extrusion separation device comprises the following steps:

the method comprises the following steps: keeping the mud discharging pipe 830 and the water discharging pipe 840 closed, adding the red mud to be treated into the barrel 200 through the mud inlet pipe 820, and closing the mud inlet pipe 820;

step two: starting the air pump 710, pumping carbon dioxide gas into the storage space 910 and the air inlet pipe 920, and after the carbon dioxide gas enters the annular channel 810, entering the barrel 200 through the air inlet 210 to carbonize the red mud;

step three: carbon dioxide gas is continuously introduced, the piston 600 is controlled by a motor to work, the piston 600 moves towards the direction far away from the cylinder 200, the carbon dioxide gas in the storage space 910 is promoted to enter the cylinder 200, meanwhile, the piston 600 drives the driving rod 500 to move, the filter plate 300 is driven to move towards the baffle 400 to extrude red mud, and the filtered liquid passes through the filter plate 300 to flow to the bottom of the cylinder 200 and flows out of the extrusion separation device through the drain pipe 840;

step four: when the induction of the liquid in the drain pipe 840 does not increase any more, the sludge discharge pipe 830 is opened, the red mud is continuously extruded through the filter plate 300, and the red mud is promoted to be discharged out of the extrusion separation device through the sludge discharge pipe 830;

step five: after the red mud is fully discharged, the piston 600 is controlled by the motor to work, and the piston 600 moves towards the direction close to the cylinder 200 to drive the filter plate 300 to reset.

In the description herein, references to the description of the term "example," "an embodiment," or "some embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The invention is not limited to the above embodiments, and those skilled in the art can make equivalent modifications or substitutions without departing from the spirit of the invention, and such equivalent modifications or substitutions are included in the scope defined by the claims of the present application.

Claims

1. An extrusion separation apparatus, comprising: including the pivot with be used for the barrel of splendid attire red mud, the pivot is followed the axial setting of barrel, be equipped with the air inlet that is used for letting in carbon dioxide gas on the barrel, be equipped with filter and the baffle that is used for extrudeing the red mud in the barrel, one side of filter with the pivot links to each other, another side direction the inner wall of barrel extends, one side of baffle with the inner wall of barrel links to each other, another side direction the pivot extends, the baffle with form the space that is used for extrudeing the red mud between the filter, be equipped with in the barrel and be used for driving the pivot is around the rotatory actuating lever of axial, be equipped with the piston on the barrel, the piston is followed the radial reciprocating motion of barrel, the one end of actuating lever with the piston links to each other, the other end with the periphery of pivot links to each other.

2. The pinch-off device of claim 1, wherein: the outer part of the cylinder body is provided with a gas tank body for storing compressed carbon dioxide, and the tank body is communicated with the cylinder body through the gas inlet.

3. The pinch-off device of claim 2, wherein: an air pump is arranged on the tank body.

4. The pinch-off device of claim 2, wherein: the carbon dioxide gas filling device is characterized in that a shell is arranged on the periphery of the barrel, an annular channel used for filling carbon dioxide gas is formed between the shell and the barrel, the gas inlet is arranged around the periphery of the barrel, and the annular channel is communicated with the interior of the barrel through the gas inlet.

5. The pinch-off device of claim 4, wherein: the carbon dioxide gas storage tank is characterized in that a connecting part is arranged between the tank body and the cylinder body, an inner cavity for the piston to reciprocate along the radial direction is arranged in the connecting part, one end of the connecting part is connected with the cylinder body, the other end of the connecting part is communicated with the tank body and the annular channel, and a storage space for temporarily storing carbon dioxide gas is formed in one side, connected with the tank body, of the piston in the connecting part.

6. The pinch-off device of claim 5, wherein: an air inlet pipe is arranged on the periphery of the connecting part, one end of the air inlet pipe is communicated with the annular channel, and the other end of the air inlet pipe is communicated with the storage space and the tank body.

7. The pinch-off device of claim 4, wherein: and a mud inlet pipe is arranged on the shell, one end of the mud inlet pipe is communicated with the barrel, and the other end of the mud inlet pipe penetrates through the shell and extends outwards.

8. The pinch-off device of claim 4, wherein: the shell is provided with a sludge discharge pipe, the sludge discharge pipe is communicated with the barrel, one end of the sludge discharge pipe is arranged at the position of the outer side of the baffle, and the other end of the sludge discharge pipe penetrates through the shell and extends to the outside.

9. The pinch-off device of claim 8, wherein: the casing is provided with a drain pipe, and the drain pipe is positioned below the sludge discharge pipe.

10. The pinch-off device of claim 1, wherein: the filter plate comprises a filter screen and filter cloth, and the filter cloth is arranged on two sides of the filter screen.