A solid-liquid separation device

Abstract

The application relates to a centrifuge technical field, and particularly discloses a solid-liquid separation device, which comprises a base, a rotating drum and a screw pusher, a sealing cover is arranged at the upper end of the base, the rotating drum is rotationally connected in the sealing cover, the screw pusher is rotationally connected in the rotating drum, a feeding pipe is arranged in the screw pusher, the end of the feeding pipe extends out of the sealing cover and is rotationally connected with the sealing cover, the feeding pipe is a cavity structure, so that the solution flows along the wall of the feeding pipe, a diffuser is arranged at the tail of the feeding pipe, the solution can be dispersed to the inner wall of the screw pusher, a feeding port is arranged on the screw pusher and corresponds to the diffuser, the solution enters the rotating drum through the feeding port, the solid-liquid mixed solution flows along the wall of the feeding pipe after entering the feeding pipe, is dispersed to the inner wall of the screw pusher through the diffuser at the tail of the feeding pipe, and the solid in the solution can quickly enter the rotating drum and adhere to the inner wall of the rotating drum, so that the separation is faster, and the separation efficiency can be improved.

Description

Technical Field

[0001] This utility model relates to the field of centrifuge technology, specifically to a solid-liquid separation device. Background Technology

[0002] A horizontal centrifuge is an industrial device used for solid-liquid separation and filtration. It primarily utilizes a high-speed rotating drum to generate centrifugal force, trapping solid particles in the suspension within the drum while the liquid is ejected through the filter medium and small holes in the drum, thus achieving solid-liquid separation. In biotechnology, solid-liquid mixtures are often extracted and subjected to turbulent flow disruption before being separated by a centrifuge to remove the heavier solids from the mixed solution. This process is used, for example, to treat molecularly complex solutions of Ganoderma lucidum, Gastrodia elata, and Dendrobium nobile. In the prior art, such as the horizontal centrifuge for nanomaterial production disclosed in CN220941237U, a base, a rotating sleeve, and a screw feeder are included. A sealing cover is installed on the upper end of the base. The rotating sleeve is rotatably connected inside the sealing cover. The screw feeder is rotatably connected inside the rotating sleeve. A slag discharge hole and an overflow hole are respectively provided at both ends of the rotating sleeve. A slag discharge pipe and a drain pipe are respectively installed on the sealing cover at positions corresponding to the slag discharge hole and the overflow hole. The end of the sealing cover near the slag discharge hole is a conical structure and is provided with a nanofiltration membrane sleeve. A feed pipe is installed inside the screw feeder. The end of the feed pipe extends out of the sealing cover and is rotatably connected to the sealing cover. A feed inlet is opened on the screw feeder at a position aligned with the opening of the feed pipe. In this technical solution, the feed pipe is a hollow tube. Due to the high-speed rotation of the screw feeder and the rotating sleeve, the solution moves erratically when it enters the inner cavity of the screw feeder through the feed pipe. It does not immediately adhere to the inner wall of the screw feeder, resulting in a longer time for the solids in the solution to enter the rotating sleeve and low separation efficiency. Utility Model Content

[0003] To address the shortcomings of existing technologies, the present invention provides a solid-liquid separation device that solves the problem of low separation efficiency in existing centrifuges.

[0004] To solve the above problems, the technical solution adopted by this utility model is: a solid-liquid separation device, including a base, a rotating drum and a screw feeder. A sealing cover is installed on the upper end of the base, the rotating drum is rotatably connected inside the sealing cover, the screw feeder is rotatably connected inside the rotating drum, and a feed pipe is installed inside the screw feeder. The end of the feed pipe extends out of the sealing cover and is rotatably connected to the sealing cover. The feed pipe has a hollow structure, and a diffuser is provided at the tail end of the feed pipe. A feed inlet is opened on the screw feeder at a position corresponding to the diffuser. The solution enters the rotating drum through the feed inlet.

[0005] The beneficial effects of this solution are as follows: Compared with the prior art, the solid-liquid separation device of this utility model, by setting a hollow structure feed pipe and diffuser, allows the solid-liquid mixed solution to flow along the pipe wall after entering the feed pipe, and disperse to the inner wall of the spiral stacker through the diffuser at the tail of the feed pipe. This allows the solids in the solution to quickly enter the drum and adhere to the inner wall of the drum, resulting in faster separation and improved separation efficiency.

[0006] Furthermore, a solid rod is provided at the center of the feed pipe along the axial direction. The solid rod is fixed to the outer wall of the feed pipe by a connecting rib, and a cavity is formed between the solid rod and the outer wall of the feed pipe for solution to flow through.

[0007] Furthermore, the connecting ribs are thin sheet structures, and multiple connecting ribs are provided.

[0008] Furthermore, the diffuser has a cylindrical structure with several small holes on its side wall and a solid structure in the middle. After being installed and connected to the feed pipe, the solid structure in the middle abuts against the solid rod of the feed pipe.

[0009] Furthermore, the sealing cover is provided with drive boxes at both ends, and the drive boxes are respectively equipped with drive devices that drive the drum and the screw feeder to rotate independently.

[0010] Furthermore, the drum is provided with a slag discharge hole and an overflow hole at both ends, and a slag discharge pipe and a drain pipe are respectively installed on the sealing cover at positions corresponding to the slag discharge hole and the overflow hole. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the feed pipe and diffuser of this utility model;

[0013] In the diagram: 1-base, 2-drum, 3-spiral feeder, 4-sealing cover, 5-feed pipe, 6-drive box, 7-diffuser, 21-slag discharge hole, 22-overflow hole, 31-feed inlet, 41-slag discharge pipe, 42-drain pipe, 51-solid rod, 52-connecting rib. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Implementation, for example, attached Figures 1 to 2The following describes a solid-liquid separation device: A base 1, a rotating drum 2, and a screw conveyor 3. A sealing cover 4 is mounted on the upper end of the base 1. The rotating drum 2 is rotatably connected inside the sealing cover 4, and the screw conveyor 3 is rotatably connected inside the rotating drum 2. A feed pipe 5 is installed inside the screw conveyor 3, with its end extending out of and rotatably connected to the sealing cover 4. Drive boxes 6 are located at both ends of the sealing cover 4. Each drive box 6 is equipped with a drive device that independently rotates the rotating drum 2 and the screw conveyor 3. The drive device can be a motor and a gearbox. The motor drives the rotating drum 2 and the screw conveyor 3 respectively. The rotating feeder 3 achieves solid-liquid separation. The drum 2 has a slag discharge hole 21 and an overflow hole 22 at both ends. The sealing cover 4 is equipped with a slag discharge pipe 41 and a drain pipe 42 at positions corresponding to the slag discharge hole 21 and the overflow hole 22, respectively, for discharging the separated solids and liquids. The feed pipe 5 has a cavity structure, which allows the solution to flow along the wall of the feed pipe 5. The feed pipe 5 is equipped with a diffuser 7 at the tail end, which can disperse the solution to the inner wall of the spiral feeder. The spiral feeder 3 has a feed inlet 31 at the position corresponding to the diffuser 7, and the solution enters the drum 2 through the feed inlet 31.

[0016] A solid rod 51 is provided at the center of the feed pipe 5 along the axial direction. The solid rod 51 is fixed to the outer wall of the feed pipe 5 by a connecting rib 52, forming a cavity between the solid rod 51 and the outer wall of the feed pipe 5. The cavity allows the solution to flow. The connecting rib 52 is a thin sheet structure, which will not affect the flow of the solution in the feed pipe 5. Multiple connecting ribs 52 are provided to ensure the structural stability of the feed pipe 5. The flow of the solution in the cavity of the feed pipe 5 is more stable than that in a hollow pipe, and it can flow closely to the wall of the feed pipe 5. The diffuser 7 is a cylindrical structure with several small holes on its side wall. The middle part of the diffuser 7 is a solid structure. The diffuser 7 and the feed pipe 5 can be connected by threads. After the diffuser 7 and the feed pipe 5 are installed and connected, the solid structure in the middle abuts against the solid rod 51 of the feed pipe 5. When the solution flows to the diffuser 7, it is dispersed to the inner wall of the spiral pusher 3 through the small holes of the diffuser 7, so that the solids in the solution can quickly enter the drum 2 and stick to the inner wall of the drum 2, improving the separation efficiency.

[0017] The specific implementation process is as follows:

[0018] The drive unit inside the drive box 6 drives the screw conveyor 3 and the drum 2 to rotate. The drum 2 and the screw conveyor 3 rotate at different speeds. The feed pipe 5 is connected to a variable frequency rotor pump, which pumps the solid-liquid mixture into the feed pipe 5. The solution flows along the feed pipe 5 to the diffuser 7 at the end of the feed pipe 5. After passing through the diffuser 7, it is dispersed to the inner wall of the screw conveyor 3 and enters the drum 2 through the feed inlet 31. Under the action of centrifugal force, solid-liquid separation is achieved. The solid particles are pushed by the screw conveyor 3 to the slag discharge hole 21 and flow out through the slag discharge pipe 41. The liquid is discharged through the overflow hole 22 and flows out through the drain pipe 42. The outflowing liquid enters the next process, such as entering the defoaming device for defoaming treatment. During the solid-liquid separation process, the solution can quickly adhere to the inner wall of the screw conveyor 3, so that the solids in the solution can quickly pass through the feed inlet 31, enter the drum 2 and adhere to the inner wall of the drum 2, effectively improving the separation efficiency.

[0019] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A solid-liquid separation device, comprising a base, a rotating drum, and a screw conveyor, wherein a sealing cover is installed on the upper end of the base, the rotating drum is rotatably connected inside the sealing cover, the screw conveyor is rotatably connected inside the rotating drum, a feed pipe is installed inside the screw conveyor, and the end of the feed pipe extends out of the sealing cover and is rotatably connected to the sealing cover, characterized in that: The feed pipe has a hollow structure, and a diffuser is provided at the tail end of the feed pipe. A solid rod is provided at the center of the feed pipe along the axial direction. A feed inlet is provided on the spiral feeder at the position corresponding to the diffuser. The solution enters the drum through the feed inlet. The diffuser has a cylindrical structure with several small holes on its side wall. The middle part of the diffuser is a solid structure. After being installed and connected with the feed pipe, the solid structure in the middle abuts against the solid rod of the feed pipe.

2. The solid-liquid separation device according to claim 1, characterized in that: The solid rod is fixed to the outer wall of the feed pipe by a connecting rib, and a cavity is formed between the solid rod and the outer wall of the feed pipe for the solution to flow through.

3. The solid-liquid separation device according to claim 2, characterized in that: The connecting ribs are thin sheet structures, and there are multiple connecting ribs.

4. The solid-liquid separation device according to claim 1, characterized in that: The sealing cover is equipped with drive boxes at both ends, and the drive boxes are respectively equipped with drive devices that drive the drum and the screw feeder to rotate independently.

5. The solid-liquid separation device according to claim 1, characterized in that: The drum is provided with a slag discharge hole and an overflow hole at both ends, and a slag discharge pipe and a drain pipe are installed on the sealing cover at the corresponding positions of the slag discharge hole and the overflow hole, respectively.

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