A continuous fermentation broth separation centrifuge

Abstract

The utility model discloses a continuous fermentation liquid separation centrifugal machine relates to biological fermentation technical field. The utility model discloses a setting, the movement direction of the solid phase that sprays is oriented as vertical downward, avoids the solid phase of high -speed spray and directly collides with the inner wall of shell, through the setting of buffer board, and the solid phase will be accumulated into the buffer stack that is roughly triangular because of the existence of dead angle at buffer board, and this buffer stack can buffer the solid phase of subsequent and slow down, avoids the collision between the solid phase of high -speed movement and rigid structure, and the stable process is carried out to the discharge, guarantees the activity of solid phase.

Description

Technical Field

[0001] This utility model relates to the field of bio-fermentation technology, and in particular to a continuous fermentation broth separation centrifuge. Background Technology

[0002] The fermentation broth, after completing the fermentation process in the fermenter, needs to be separated to obtain a liquid phase (mainly a clarified liquid) and a solid phase (mainly microorganisms, cells, etc.). Existing technology often uses a disc centrifuge as the separation device for the fermentation broth. This is a continuous feeding and continuous discharging centrifuge with solid phase nozzles arranged circumferentially around the drum. When the solid phase accumulates to a certain extent near the nozzles, it is intermittently sprayed out for discharge.

[0003] However, due to the limitations of the ejection method of disc centrifuges, it is difficult to avoid collisions between the high-speed moving solid phase and the rigid structure, which reduces its activity.

[0004] Therefore, those skilled in the art are dedicated to developing a continuous fermentation broth separation centrifuge that can effectively ensure the activity of the solid phase. Summary of the Invention

[0005] In view of the above-mentioned defects of the prior art, the technical problem to be solved by the present invention is to provide a continuous fermentation broth separation centrifuge that can effectively ensure the activity of the solid phase.

[0006] To achieve the above objectives, this utility model provides a continuous fermentation broth separation centrifuge, comprising a housing and a disc drum rotatably connected within the housing. The outer periphery of the disc drum is provided with several discharge nozzles that radially eject solid phase. A transmission box for driving the disc drum's rotation is provided at the bottom of the disc drum. An annular receiving groove is formed between the inner wall of the housing and the side wall of the transmission box. An annular guide plate and a buffer plate are respectively arranged from top to bottom on the inner wall of the housing. The guide plate has a concave arc cross-section, and its lower surface is a guide surface. One end of the guide surface near the discharge nozzle is higher than the height of the discharge nozzle, causing the solid phase ejected from the discharge nozzle to move along the guide surface. The other end of the guide surface is tangent to the inner wall of the housing. The buffer plate is horizontally positioned.

[0007] Preferably, the end of the guide surface near the discharge nozzle is tangent to the horizontal plane, which further reduces the collision between the solid phase and the guide plate.

[0008] During operation, when the solid phase near the discharge nozzle accumulates to a certain extent, the discharge nozzle is opened to spray out the solid phase. After the sprayed solid phase reaches the lower surface of the guide plate, i.e., the guide surface, it moves along the guide surface and is guided to move vertically downwards. This process avoids the sprayed solid phase directly colliding with the inner wall of the shell. Further, the solid phase moves vertically downwards along the inner wall of the shell to the buffer plate. At the buffer plate, the solid phase accumulates into a roughly triangular buffer pile due to the existence of dead angles. This buffer pile, which is composed of the solid phase itself, can buffer and decelerate the solid phase that subsequently moves to this point, avoiding collisions between the high-speed solid phase and the rigid structure. Finally, the solid phase slides down from one side of the buffer pile into the receiving trough, achieving stable receiving and ensuring the activity of the solid phase.

[0009] Compared with the prior art, the present invention has the following beneficial effects:

[0010] By setting up the guide plate, the movement direction of the ejected solid phase is guided vertically downward, avoiding direct collision between the high-speed ejected solid phase and the inner wall of the shell; by setting up the buffer plate, the solid phase will accumulate into a roughly triangular buffer pile at the buffer plate due to the existence of dead angles. This buffer pile can buffer and decelerate the subsequent solid phase, avoiding collision between the high-speed moving solid phase and the rigid structure. The discharge process proceeds smoothly, ensuring the activity of the solid phase. Attached Figure Description

[0011] Figure 1 This is a main sectional view of the present invention;

[0012] Figure 2 This is a schematic diagram of the material discharge state of this utility model;

[0013] Figure 3 yes Figure 2 Enlarged view of point A in the image.

[0014] Reference numerals in the attached drawings: 1. Housing; 2. Disc-type drum; 3. Transmission box; 4. Discharge nozzle; 5. Guide plate; 6. Buffer plate. Detailed Implementation

[0015] The following description, with reference to the accompanying drawings, illustrates several preferred embodiments of the present invention to make its technical content clearer and easier to understand. The present invention can be embodied in many different forms, and the scope of protection of the present invention is not limited to the embodiments mentioned herein.

[0016] In the accompanying drawings, components with the same structure are indicated by the same numerical designation, and components with similar structures or functions are indicated by similar numerical designations. The dimensions and thicknesses of each component shown in the drawings are arbitrary, and this invention does not limit the dimensions and thicknesses of each component. To make the illustrations clearer, the thickness of some components has been appropriately exaggerated in the drawings.

[0017] like Figure 1-3 As shown, the continuous fermentation broth separation centrifuge of this utility model includes a housing 1 and a disc drum 2 rotatably connected inside the housing 1. The outer periphery of the disc drum 2 is provided with a plurality of discharge nozzles 4 that spray solid phase radially. The bottom of the disc drum 2 is provided with a transmission box 3 for driving the disc drum 2 to rotate. An annular receiving groove is formed between the inner wall of the housing 1 and the side wall of the transmission box 3. The inner wall of the housing 1 is provided with an annular guide plate 5 and a buffer plate 6 from top to bottom. The cross-section of the guide plate 5 is concave arc-shaped. The lower surface of the guide plate 5 is a guide surface. The end of the guide surface near the discharge nozzle 4 is higher than the height of the discharge nozzle 4, so that the solid phase sprayed from the discharge nozzle 4 moves along the guide surface. The other end of the guide surface is tangent to the inner wall of the housing 1. The buffer plate 6 is horizontally arranged.

[0018] The disc drum 2 is equipped with discs, a feed pipe, a main shaft, and other structures, which are standard configurations for existing disc centrifuges and are not shown in the figure.

[0019] During operation, when the solid phase accumulates to a certain extent near the discharge nozzle 4, the discharge nozzle 4 is opened to spray out the solid phase. The sprayed solid phase reaches the lower surface of the guide plate 5, i.e., the guide surface, and moves along the guide surface, with the direction of movement directed vertically downwards. This process avoids the sprayed solid phase directly colliding with the inner wall of the housing 1; see attached diagram for further details. Figure 2-3 The solid phase moves vertically downwards along the inner wall of the shell 1 to the buffer plate 6. Due to the presence of dead angles, the solid phase accumulates at the buffer plate 6 into a roughly triangular buffer pile. This buffer pile, composed of the solid phase itself, can buffer and decelerate the solid phase that subsequently moves to this location, avoiding collisions between the high-speed solid phase and the rigid structure. Finally, the solid phase slides down from one side of the buffer pile into the receiving trough, achieving stable receiving and ensuring the activity of the solid phase.

[0020] Preferably, the end of the guide surface near the discharge nozzle 4 is tangent to the horizontal plane, which further reduces the collision between the solid phase and the guide plate 5.

[0021] The preferred embodiments of this utility model have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of this utility model without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of this utility model through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A continuous fermentation broth separation centrifuge, characterized in that, The device includes a housing (1) and a disc drum (2) rotatably connected within the housing (1). The outer periphery of the disc drum (2) is provided with several discharge nozzles (4) that spray solid phase radially. The bottom of the disc drum (2) is provided with a transmission box (3) for driving the disc drum (2) to rotate. An annular receiving groove is formed between the inner wall of the housing (1) and the side wall of the transmission box (3). An annular guide plate (5) and a buffer plate (6) are respectively provided on the inner wall of the housing (1) from top to bottom. The cross section of the guide plate (5) is concave arc-shaped. The lower surface of the guide plate (5) is a guide surface. The end of the guide surface near the discharge nozzle (4) is higher than the height of the discharge nozzle (4), so that the solid phase sprayed from the discharge nozzle (4) moves along the guide surface. The other end of the guide surface is tangent to the inner wall of the housing (1). The buffer plate (6) is horizontally arranged.

2. The continuous fermentation broth separation centrifuge as described in claim 1, characterized in that, The end of the guide surface near the discharge nozzle (4) is tangent to the horizontal plane.

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