CN219290713U

CN219290713U - High-viscosity material liquid-solid continuous separation device

Info

Publication number: CN219290713U
Application number: CN202222788452.3U
Authority: CN
Inventors: 李裕超; 唐文刚
Original assignee: Mingshi New Materials Co ltd
Current assignee: Mingshi New Materials Co ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-07-04
Anticipated expiration: 2032-10-21

Abstract

The utility model discloses a high-viscosity material liquid-solid continuous separation device, which comprises a separation tank, wherein a feed pipe is arranged on the separation tank, a filter plate is arranged in the separation tank, a stirring structure for stirring and flattening the material is arranged above the filter plate, and a screw conveyor for conveying out solid particles filtered on the filter plate is arranged on the side wall of the separation tank; a material buffer tank for collecting filtrate is arranged below the separation tank, the material buffer tank is connected with the separation tank through a connecting pipe, and a diaphragm pump is arranged on a discharge pipe of the material buffer tank; the material buffer tank is provided with a vacuumizing structure for vacuumizing the material buffer tank. The high-viscosity material liquid-solid continuous separation device with the structure can solve the problems that the conventional filtering separation device has low filtering separation efficiency and cannot realize continuous separation.

Description

High-viscosity material liquid-solid continuous separation device

Technical Field

The utility model relates to the technical field of solid-liquid separation, in particular to a solid-liquid continuous separation device for high-viscosity material liquid.

Background

In the PI resin production process, the viscosity of the reaction material is 100-500cp, a large amount of solid particles generated by the reaction are suspended in the high-viscosity material, and in order to realize the separation of the solid materials, a filter element filtering mode is mostly adopted, so that the filtering effect is better, but the problems are more obvious: firstly, a certain pressure difference is needed for filtration, and the larger pressure difference leads to the limitation of equipment size, so that continuous production cannot be realized; and secondly, the filtered solid particles and the high-viscosity materials are adhered to the filter assembly and cannot be reused, so that the production cost is high.

The utility model provides a current patent CN216440072U discloses a high viscosity material solid-liquid separation device, including the support frame, the fixed filter-pressing frame that has cup jointed in top of support frame, the top of filter-pressing frame is equipped with intake pipe and material input tube, and the bottom of material input tube is equipped with automatically controlled valve, and the top of support frame is equipped with air compressor, and air compressor's air outlet is connected with the other end of intake pipe, and the middle part of support frame is provided with filtration, and filtration includes two filter screen boards, the hydraulic telescoping rod and the backup pad of being connected with the support frame. Through the setting of water diversion board and rotation motor, the rotation of rotation motor drives the filter screen plate and rotates, and the filter screen plate keeps parallel with the water spray board, and water in the water spray board can spray on the filter screen plate, washs the filter screen plate, is convenient for use of filter screen plate. In this patent, only rely on compressed air and filter screen plate to filter the material, the efficiency of filtration separation is low to can't realize continuous separation.

Disclosure of Invention

The utility model aims to provide a high-viscosity material liquid-solid continuous separation device, which solves the problems that the existing filtering separation device is low in filtering separation efficiency and cannot realize continuous separation.

In order to achieve the above purpose, the utility model provides a high-viscosity material liquid solid continuous separation device, which comprises a separation tank, wherein a feed pipe is arranged on the separation tank, a filter plate is arranged in the separation tank, a stirring structure for stirring and flattening the material is arranged above the filter plate, and a screw conveyor for conveying out solid particles filtered on the filter plate is arranged on the side wall of the separation tank; a material buffer tank for collecting filtrate is arranged below the separation tank, the material buffer tank is connected with the separation tank through a connecting pipe, and a diaphragm pump is arranged on a discharge pipe of the material buffer tank; the material buffer tank is provided with a vacuumizing structure for vacuumizing the material buffer tank.

Preferably, the stirring structure comprises a stirring paddle, the stirring paddle is connected with a stirring motor through a stirring shaft, and the stirring motor is arranged on the separating tank.

Preferably, the distance between the stirring paddle and the filter plate is 1-3 cm.

Preferably, the vacuum pumping structure comprises a buffer tank for liquid, a circulating pump, a vacuum tank and a vacuum pumping machine, wherein the circulating pump is arranged on a connecting pipe between the bottom of the buffer tank and the vacuum pumping machine, the vacuum pumping machine is connected with the material buffer tank through an exhaust pipe, the vacuum pumping machine is connected with the buffer tank through the connecting pipe to form a circulating pipeline, and an exhaust pipe is arranged on the buffer tank.

Preferably, the exhaust pipe is located at the top end of the material buffer tank.

According to the high-viscosity material liquid solid continuous separation device, a certain vacuum degree is formed at the upper part of a material buffer tank through a circulating pump and a vacuum pumping machine, and vacuum pumping is formed at the bottom of the separation tank; the stirring paddle is used for stirring and flattening the materials, the materials are filtered under the action of gravity, the stirring paddle and vacuum suction, and the filtering efficiency is improved. The filtered solid particles are discharged out of the separating tank through the screw conveyor, the filtered PI filtrate is collected in the material buffer tank and pumped out through the diaphragm pump, and the solid-liquid continuous separation of high-viscosity materials can be realized.

The technical scheme of the utility model is further described in detail through the drawings and the embodiments.

Drawings

FIG. 1 is a schematic diagram of an embodiment of a solid-liquid continuous separation device for high-viscosity materials according to the present utility model.

Reference numerals

1. A separation tank; 2. a feed pipe; 3. stirring paddles; 4. a stirring motor; 5. a filter plate; 6. a screw conveyor; 7. a discharge port; 8. a material buffer tank; 9. a diaphragm pump; 10. a discharge pipe; 11. an exhaust pipe; 12. a vacuum tank; 13. a vacuum pumping machine; 14. a buffer tank; 15. a circulation pump; 16. and an exhaust pipe.

Detailed Description

The technical scheme of the utility model is further described below through the attached drawings and the embodiments.

Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

Examples

FIG. 1 is a schematic diagram of an embodiment of a solid-liquid continuous separation device for high-viscosity materials according to the present utility model. As shown in the figure, the high-viscosity material liquid-solid continuous separation device comprises a separation tank 1, wherein the separation tank 1 is of a closed tank structure. The separating tank 1 is provided with a feeding pipe 2, the feeding pipe 2 is positioned at the top end of the separating tank 1, and materials are continuously fed into the separating tank 1 through the feeding pipe 2 in a liquid-solid suspension mixing mode. The inside of knockout drum 1 is provided with filter 5, and filter 5 is used for carrying out the separation of solid-liquid to the material, and the edge of filter 5 and the inner wall fixed connection of knockout drum 1.

A stirring structure for stirring and flattening the materials is arranged above the filter plate 5. The stirring structure comprises a stirring paddle 3, the stirring paddle 3 is connected with a stirring motor 4 through a stirring shaft, and the stirring motor 4 is fixedly arranged on the separation tank 1. The stirring paddle 3 is positioned below the stirring shaft and is welded with the stirring shaft or fixedly connected with the stirring shaft through bolts. The stirring shaft is positioned on the longitudinal axis of the separating tank 1, and the stirring motor 4 is welded with the top end of the stirring shaft or fixedly connected with the stirring shaft through bolts. The distance between the stirring paddle 3 and the filter plate 5 is 1-3 cm. The stirring motor 4 drives the stirring paddle 3 to rotate through the stirring shaft, the rotating speed of the stirring paddle 3 is 2-3rpm, the stirring paddle 3 spreads and stirs materials falling onto the filter plate 5 in the rotating process, the materials are filtered through the filter plate 5 under the action of vacuum suction and gravity, PI liquid materials pass through the filter plate 5 to fall into the bottom of the separation tank 1, and solid particles are filtered above the filter plate 5, so that solid-liquid separation is realized. The materials are separated by gravity and vacuum suction under the stirring and flattening actions of the stirring paddles 3, which is beneficial to improving the separation efficiency.

A screw conveyor 6 for conveying out the solid particles filtered on the filter plate 5 is provided on the side wall of the separation tank 1. In this embodiment, a screw conveyor 6 is provided on each side of the separator tank 1. The solid particles filtered on the filter plate 5 are gathered under the action of the stirring paddle 3 and pushed to the edge of the separation tank 1, and then the solid particles are conveyed out by the screw conveyor 6 and discharged through the discharge port 7 for collection. The screw conveyor 6 has a conventional structure as required.

The below of knockout drum 1 is provided with the material buffer tank 8 of collecting the filtrate, is connected through the connecting pipe between material buffer tank 8 and knockout drum 1, is provided with the valve on the connecting pipe. The valve can be a manual mechanical valve or an electromagnetic valve according to the requirement. The filtrate in the separation tank 1 flows into the material buffer tank 8 through the connecting pipe. A diaphragm pump 9 is arranged on a discharge pipe 10 of the material buffer tank 8, and the diaphragm pump 9 provides power for the flow of filtrate.

A liquid level sensor is arranged in the material buffer tank 8, and the liquid level sensor and the diaphragm pump 9 are connected with a controller by adopting the existing structure. When the filtrate in the material buffer tank 8 reaches a certain height, the diaphragm pump 9 works to discharge the filtrate in the material buffer tank 8 through the discharge pipe 10 for collection.

The material buffer tank 8 is provided with a vacuumizing structure for vacuumizing the material buffer tank 8. The vacuumizing structure comprises a buffer tank 14 for liquid, a circulating pump 15, a vacuum tank 12 and a vacuum extractor 13; the buffer tank 14 is of a closed structure, 50% -70% of liquid is filled in the buffer tank 14, and the liquid can be water. A circulating pump 15 is arranged on a connecting pipe between the bottom of the buffer tank 14 and the vacuum extractor 13, and the circulating pump 15 provides power for the flow of liquid. The vacuum extractor 13 is connected with the material buffer tank 8 through an exhaust pipe 11, and the exhaust pipe 11 is positioned at the top end of the material buffer tank 8. The vacuum extractor 13 is used for extracting liquid and vacuumizing the material buffer tank 8 through the exhaust pipe 11, so that the vacuum degree of the material buffer tank 8 is kept at 90KPa, and the separation of liquid and solid in the separation tank 1 is facilitated by forming a certain vacuum degree in the separation tank 1. The vacuum extractor 13 is connected with the buffer tank 14 through a connecting pipe, and the liquid pumped by the circulating pump 15 is sent into the buffer tank 14 again to form a circulating pipeline, so that the circulating flow of the liquid in the buffer tank 14 is realized. The buffer tank is provided with an exhaust pipe 16, and the exhaust pipe 16 is used for exhausting the gas in the buffer tank.

When the device is used, the circulating pump 15 works to pump out liquid in the buffer tank 14, the liquid is pressurized to 0.5MPa, the liquid passes through the vacuum pumping machine 13, under the action of high-pressure pumping, the gas at the top of the material buffer tank 8 is continuously pumped into the buffer tank 14 through the pumping pipe 11, a certain vacuum degree is formed at the top of the material buffer tank 8, and the gas in the buffer tank 14 is discharged through the exhaust pipe 16; the material buffer tank 8 is communicated with the separation tank 1 through a connecting pipe, and a certain vacuum degree is formed at the bottom of the separation tank 1; the materials enter the separating tank 1 through the feeding pipe 2, the stirring motor 4 is started to drive the stirring paddle 3 to rotate, and the materials are filtered through the filter plate 5 under the action of gravity, the stirring paddle 3 and vacuum suction force, so that solid-liquid separation of the materials is realized; the solid particles on the filter plate are enriched and moved to the edge of the separating tank 1 under the action of the stirring paddle 3, and then are conveyed out through the screw conveyor 6; realizing the solid-liquid continuous separation of materials.

Therefore, the high-viscosity material liquid-solid continuous separation device adopting the structure can solve the problems that the conventional filtering separation device has low filtering separation efficiency and can not realize continuous separation.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting it, and although the present utility model has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that: the technical scheme of the utility model can be modified or replaced by the same, and the modified technical scheme cannot deviate from the spirit and scope of the technical scheme of the utility model.

Claims

1. A high-viscosity material liquid-solid continuous separation device is characterized in that: the device comprises a separating tank, wherein a feeding pipe is arranged on the separating tank, a filter plate is arranged in the separating tank, a stirring structure for stirring and flattening materials is arranged above the filter plate, and a screw conveyor for conveying out solid particles filtered on the filter plate is arranged on the side wall of the separating tank; a material buffer tank for collecting filtrate is arranged below the separation tank, the material buffer tank is connected with the separation tank through a connecting pipe, and a diaphragm pump is arranged on a discharge pipe of the material buffer tank; the material buffer tank is provided with a vacuumizing structure for vacuumizing the material buffer tank.

2. The solid-liquid continuous separation device for high-viscosity materials according to claim 1, wherein: the stirring structure comprises stirring paddles, the stirring paddles are connected with a stirring motor through a stirring shaft, and the stirring motor is arranged on the separating tank.

3. The solid-liquid continuous separation device for high-viscosity materials according to claim 2, wherein: the distance between the stirring paddle and the filter plate is 1-3 cm.

4. The solid-liquid continuous separation device for high-viscosity materials according to claim 1, wherein: the vacuum pumping structure comprises a buffer tank for liquid, a circulating pump, a vacuum tank and a vacuum pumping machine, wherein the circulating pump is arranged on a connecting pipe between the bottom of the buffer tank and the vacuum pumping machine, the vacuum pumping machine is connected with the material buffer tank through an exhaust pipe, the vacuum pumping machine is connected with the buffer tank through the connecting pipe to form a circulating pipeline, and an exhaust pipe is arranged on the buffer tank.

5. The solid-liquid continuous separation device for high-viscosity materials according to claim 4, wherein: the exhaust tube is positioned at the top end of the material buffer tank.