CN204933747U - Horizontal type screw settling centrifuge - Google Patents

Abstract

The utility model discloses a horizontal spiral sedimentation centrifuge, the main points of the technical scheme are: comprising a shell, a screw pusher, a differential gear and a bearing seat, the end of the screw propeller extends to the outside of the shell and is connected with the differential The screw propeller is connected with the speed device, and a drum is arranged outside the screw propeller, and a separation chamber is formed between the drum and the inner wall of the shell, and a material inlet and a solid phase outlet are arranged at the right end of the drum, and a The left end is provided with a liquid phase liquid outlet, and the end of the screw propeller close to the liquid phase discharge port is provided with a defoaming plate for eliminating foam in the liquid, and the defoaming plate is slidably connected with the screw propeller, Moreover, an adjustment piece for locking the position of the defoaming plate is provided between the defoaming plate and the screw propeller. The utility model solves the problem that the defoaming effect of the defoaming plate in the existing horizontal spiral sedimentation centrifuge is not good.

Description

Horizontal spiral decanter centrifuge

technical field

The utility model relates to a centrifuge, in particular to a horizontal spiral sedimentation centrifuge.

Background technique

The horizontal spiral decanter centrifuge is mainly composed of a high-speed rotating drum, a screw with the same rotation direction as the rotating drum and a slightly higher or lower rotating speed than the rotating drum, and a differential. When the suspension to be separated enters the drum of the centrifuge, the drum rotating at high speed generates a strong centrifugal force to settle the solid phase particles with a higher density than the liquid phase to the inner wall of the drum. There is relative motion, and the solid phase deposited on the inner wall of the drum is pushed to the outlet of the small end of the drum by the relative motion of the screw and the drum, and the separated clear liquid is discharged from the liquid outlet at the other end of the centrifuge.

Among them, the Chinese patent application number 201420344895.6 discloses a horizontal screw decanter centrifuge, which includes a housing, a screw propeller, a differential and a bearing seat, and a drum is arranged outside the screw propeller, and the There is a separation chamber between the drum and the inner wall of the shell, a filter screen is set in the separation chamber, a material inlet is provided at the right end of the shell, and a material outlet and a liquid outlet are provided at the lower part of the shell. A feed pipe is connected to the mouth, and the feed pipe extends to the inside of the screw propeller, and the end of the screw propeller extends to the outside of the casing and is connected with the differential gear, and the lower part of the screw propeller is provided with a fixed plate.

Most of the existing horizontal spiral decanter centrifuges are as described above. When the horizontal spiral decanter centrifuge is applied to processes such as slag removal in fruit juice production and soybean protein dejuicing, due to the rotation of the liquid in the screw pusher Under the action, foam will be generated, and the generated foam cannot be eliminated in the drum, and will be discharged from the liquid outlet. After the liquid is collected into the collection bucket, the foam floating on the surface of the liquid will generally be scooped away with a ladle. This will cause the original juice to be wasted.

And the Chinese patent application number 201320648230.X discloses a horizontal spiral unloading decanter centrifuge using defoaming plate technology. The inner rotor is provided with a defoaming plate, and the defoaming plate is located near the outlet of the clarified liquid. The radius of the defoaming plate is at least one-third of the height of the cavity. However, this kind of defoaming plate is welded and fixed with the inner rotor, so it is not convenient to adjust the defoaming plate. Then when the centrifuge is separating different materials, the position of the foam generated is different, so the position of the defoaming plate is different. Will affect the effect of defoaming.

Utility model content

Aiming at the deficiencies in the prior art, the purpose of this utility model is to provide a horizontal spiral sedimentation centrifuge with better defoaming effect.

In order to achieve the above purpose, the utility model provides the following technical solutions: a horizontal screw decanter centrifuge, including a shell, a screw pusher, a differential and a bearing seat, the end of the screw propeller extends to the outside of the shell And connected with the differential, the screw propeller is provided with a rotating drum outside, and a separation chamber is formed between the rotating drum and the inner wall of the shell, and a material inlet and a solid phase outlet are arranged at the right end of the rotating drum. The left end of the housing is provided with a liquid phase outlet, and the end of the screw propeller close to the liquid phase outlet is provided with a defoaming plate for eliminating foam in the liquid, and the defoaming plate slides with the screw propeller shift connection, and an adjustment piece for locking the position of the defoaming plate is provided between the defoaming plate and the screw propeller.

Preferably, the adjusting member includes an adjusting ring slidingly sleeved on the screw propeller, the defoaming plate is fixedly arranged on the adjusting ring, and the adjusting ring is symmetrically arranged with respect to the defoaming plate Two adjusting holes, and adjusting screws are arranged in the adjusting holes.

Preferably, there are three adjusting screws on the same side of the defoaming plate in a circular array on the adjusting ring.

Preferably, the number of the defoaming plates is at least two.

Preferably, the defoaming plate is arranged in a disc shape.

The utility model has the following advantages: the end of the screw propeller near the liquid phase discharge port in the horizontal spiral sedimentation centrifuge of the utility model is provided with a defoaming plate for eliminating foam in the liquid, and the defoaming plate is arranged in a disc shape . Since the liquid will generate foam when rotating and separating through the screw propeller in the drum, and it will gather at the liquid phase outlet. The defoaming plate arranged at the liquid phase outlet in the utility model can follow the screw propeller Rotate and rotate, and cut the foam, so that the foam is cut and eliminated, then the foam contained in the liquid coming out of the liquid phase liquid outlet will be greatly reduced, thereby avoiding the waste of juice. The defoaming plate is slidably connected with the screw propeller, so that the defoaming plate can be adjusted, and then the defoaming position can be optimized, so that the defoaming effect is better.

Description of drawings

Fig. 1 is the structural representation of the utility model horizontal spiral sedimentation centrifuge;

FIG. 2 is an enlarged schematic view of part A of FIG. 1 .

In the figure: 1. Shell; 2. Drum; 21. Feed port; 22. Solid phase discharge port; 23. Liquid phase discharge port; 3. Screw propeller; 4. Separation chamber; 5. Differential speed 6. Bearing seat; 7. Defoaming plate; 8. Adjusting ring; 9. Adjusting screw.

detailed description

Shown in the accompanying drawings, the utility model horizontal spiral sedimentation centrifuge is further described.

Embodiment: A horizontal spiral decanter centrifuge, comprising a housing 1, a screw propeller, a differential 5 and a bearing seat 6, the end of the screw propeller 3 extends to the outside of the housing 1 and is connected to the differential 5, The screw propeller 3 is provided with a rotating drum 2 outside, and a separation chamber 4 is formed between the rotating drum 2 and the inner wall of the housing 1, and a material inlet 21 and a solid phase outlet 22 are provided at the right end of the rotating drum 2. The left end of the cylinder is provided with a liquid phase outlet, and the raw material enters the drum 2 from the feed port 21, and through the differential rotation of the drum 2 and the screw propeller 3, the solid phase is pushed by the screw propeller 3 and is squeezed to the The small end (i.e. the right end) of the drum 2 will then come out from the solid phase outlet 22 at the right end of the drum 2, the liquid phase will flow through the gap between the screw propeller 3 and the drum 2, and the liquid phase will flow from the left end. Phase discharge port 23 flows out.

In this embodiment, the end of the screw propeller 3 close to the liquid phase outlet 23 is provided with a defoaming plate 7 for eliminating foam in the liquid, and the defoaming plate 7 is arranged in a disk shape. Perhaps this defoaming plate 7 also can be arranged in other shapes, such as rectangle or octagon etc., but the defoaming plate 7 that polygon is provided with does not have the effect of disc shape, because disc-shaped defoaming plate 7 is rotating The foam is cut continuously, while the polygonal defoaming plate 7 is cut intermittently.

Further, the defoaming plate 7 is slidably connected to the screw propeller 3 , and an adjusting piece for locking the position of the defoaming plate 7 is provided between the defoaming plate 7 and the screw propeller 3 . Since the defoaming plate 7 can slide on the screw propeller 3, the position of the defoaming plate 7 in the drum 2 can be adjusted; and because the density of different liquids is different, the positions of the foams in the drum 2 are different , so the foam can be better cut and eliminated by adjusting the position of the defoaming plate 7 .

Wherein, the adjusting member includes an adjusting ring 8 slidably sleeved on the screw propeller 3 , and the middle of the adjusting ring 8 is a shaft hole, through which the shaft hole is connected with the screw propeller 3 . The defoaming plate 7 is fixedly arranged in the middle of the adjusting ring 8, and the adjusting ring 8 is symmetrically provided with two adjusting holes with respect to the defoaming plate 7, and an adjusting screw 9 is arranged in the adjusting hole. Since the adjustment holes are symmetrically arranged on the adjustment ring 8, the fixing of the adjustment ring 8 has a stable effect. In order to further strengthen the connection stability between the adjusting ring 8 and the screw propeller 3, in this embodiment, there are three adjusting screws 9 on the same side of the defoaming plate 7 in a circular array on the adjusting ring 8, because the three-point fixing method from The adjusting ring 8 is respectively fixed in three directions, thereby making the fixing of the adjusting ring 8 on the screw propeller 3 better.

Furthermore, the number of defoaming plates 7 is at least two, can be two, three, or even more, setting more defoaming plates 7 can increase the cutting times of the foam, and the cutting and elimination of the foam is more thorough. Of course, considering the limited space in the drum 2, the number of defoaming plates 7 should not be too much, generally preferably 3, which can increase the number of times that the defoaming plates 7 can cut the foam, and eliminate the cutting of the foam. More thoroughly, the space in the drum 2 can also be rationally utilized.

The above descriptions are only preferred implementations of the present utility model, and the protection scope of the present utility model is not limited to the above-mentioned embodiments, and all technical solutions under the idea of the present utility model all belong to the protection scope of the present utility model. It should be pointed out that for those skilled in the art, some improvements and modifications without departing from the principle of the utility model should also be regarded as the protection scope of the utility model.

Claims (5)

1. A horizontal spiral decanter centrifuge, comprising a housing, a screw pusher, a differential and a bearing seat, the end of the screw pusher extends to the outside of the housing and is connected with the differential, the screw pusher There is a rotating drum on the outside, and a separation chamber is formed between the rotating drum and the inner wall of the shell. A feed port and a solid phase outlet are provided at the right end of the drum, and a liquid phase liquid outlet is provided at the left end of the shell. It is characterized in that: the end of the screw propeller close to the liquid phase outlet is provided with a defoaming plate for eliminating foam in the liquid, the defoaming plate is slidably connected with the screw propeller, and the defoaming plate An adjustment piece for locking the position of the defoaming plate is provided between the plate and the screw propeller. 2. The horizontal spiral decanter centrifuge according to claim 1, characterized in that: the adjusting member includes an adjusting ring slidingly sleeved on the screw propeller, and the defoaming plate is fixedly arranged on the On the adjusting ring, two adjusting holes are symmetrically arranged on the adjusting ring with respect to the defoaming plate, and adjusting screws are arranged in the adjusting holes. 3. The horizontal spiral decanter centrifuge according to claim 2, characterized in that there are three adjusting screws on the same side of the defoaming plate in a circular array on the adjusting ring. 4. The horizontal spiral decanter centrifuge according to claim 1, characterized in that: the number of the defoaming plates is at least two. 5. The horizontal spiral decanter centrifuge according to claim 1, characterized in that: the defoaming plate is arranged in a disc shape.