JPS5949043B2 - Continuous “filtration” device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to the treatment of suspended solids (hereinafter referred to as S) contained in a liquid.
This relates to a rotary furnace type filtration device that continuously separates SS) and concentrates the separated SS.

The basic structure of this device has already been patented.

The diameter of the fins of each P body is the same, and two rows of furnace bodies are placed facing each other in the processing chamber so that they can rotate freely. The SS was separated and concentrated by passing the stock solution containing SS through the liquid, but the concentrated SS moves forward due to the rotation of the P body,
It is discharged from the system as a cake.

At this time, the SS is surrounded on all four sides by the row of P bodies and the side plates of the processing chamber, and the portion of the SS that contacts the stream body is likely to peel off due to the rotation of the P body, but the SS is in contact with the side plates of the processing chamber. Part SS
adheres to the side plate and is more difficult to separate from than the part in contact with the P body.

In other words, in the cake formed by stacking SS, cracks may occur in the cake itself due to the difference in the advancing speed near the P body and near the side plate of the processing chamber, and the raw solution may flow out of the system from that part. , which could cause off-shore failure.

The present invention is free from such drawbacks and will be described below with reference to the drawings.

The furnace body 2 is placed vertically at appropriate intervals in the processing chamber 11 of the processing box 1, which is separated into a processing chamber 11 having a stock solution supply port 11a and a cake takeout port 11b, and a liquid discharge chamber 12 having a liquid liquid discharge port 12a. They are arranged in two rows with their central axes 21 horizontally spaced apart from each other, and the central axes 21 are rotatably fixed to both side plates 10, 10' of the processing chamber 11.

Here, the P body 2 has large and small fins 22 and 23 of different diameters stacked alternately around the central axis 21, and both fins 22 and 23 have fins 22 and 23 parallel to the central axis 21 and a mud discharge chamber 1.
One or more furnace liquid discharge holes 25 are provided on the circumference having the same diameter as the furnace liquid guide hole 10a formed in one side plate 10 of the processing chamber 11 in contact with the P body 2, and both ends of the P body 2 are provided. The fins 24, 24 are made larger in diameter than the other fins 22, 23, and the fins 24, 24 at both ends of the furnace bodies 2, 2, which are vertically spaced apart from each other at appropriate intervals, are close to each other on the outer periphery.

Alternatively, as shown in FIG. 3, the diameter of the fins may be gradually increased from appropriate points toward both ends of the P body 2.

In addition, the minute C in the figure is the opening/closing lid of the cake removal port 11b, and G
P indicates a gear connected to a driving means (not shown) for rotating the P body 2, and P indicates a peeling plate for peeling the cake from the surface of the P body 2, respectively.

Next, to explain the operation of the device of the present invention, first, the stock solution is supplied from the stock solution supply port 11a.

At that time, the lid C closes the cake removal port 11b, and the lid C closes the cake outlet 11b.
Body 2 is rotating.

Therefore, the stock solution is applied to the outer periphery of the fin 23 and the large fin 22.
．． The P liquid is passed through the slit groove between the fins 22,
P liquid discharge hole 25 and P liquid guide hole 10 opened in 23 and 24
a, and is discharged out of the system from the P liquid discharge chamber 12a, while SS is laminated on the outer periphery of the P body 2, forming a cake, and P
The rotation of the body 2 causes it to move in the direction of the cake outlet 11b.

Then, the undiluted solution is caught in the cake and the cake is removed from the cake outlet 1.
When the cake no longer flows directly from 1b, the lid C is opened and the cake is discharged from the cake discharge port 11b.

The following cakes will be discharged one after another.

Thus, the present invention achieves its objectives.

The present invention gradually increases the diameter of the fins at the sidemost end of the P body or toward both ends, and reduces the area of the cake in contact with the side plate of the processing chamber. The advancing speed of the cake on both sides of the P body, which is in contact with the side plate of the processing box and receives the frictional resistance, is almost the same, and the cake sandwiched between the opposing furnace bodies cracks in the axial direction of the body. The cake is moved in the direction of the cake outlet by the rotational force of the P body.

Therefore, the cake approaching the cake outlet forms a layer and can completely separate the cake outlet and the concentrate, stopping the direct flow of the concentrate from the cake outlet and removing SS from the concentrate as a cake. It has the effect of eliminating, that is, allowing it to pass.

[Brief explanation of the drawing]

FIG. 1 is a front cross-sectional view of the present invention, and FIG. 2 is II-II of FIG. 1.
FIG. 3 is a side sectional view showing another embodiment. 1...Processing box, 2...P body, lla・
...Standard solution supply port, llb...Cake removal port, 12a...Furnace liquid discharge port, 22, 23, 24
······fin.

Claims (1)

[Scope of Claims] 1. A large number of P bodies each having thin grooves opened on the outer periphery of the fins alternately in the axial direction, and each fin having a furnace liquid discharge hole in the axial direction, are mutually arranged. A process in which the fins are lined up in an intersecting state with the fins protruding into the slot grooves of adjacent P bodies to form a row of furnace bodies, and two rows of these rows of offshore bodies are made to face each other to have a stock solution supply port, a furnace solution discharge port, and a cake takeout port. In a filtration device in which each P body is arranged in a box and rotated so as to move the cake between the rows of P bodies toward the cake outlet, the diameter of the fins at both ends of each P body is larger than the diameter of the other fins. A continuous filtration device characterized in that the outer peripheries of the fins at both ends of the opposing P bodies are brought closer to each other. 2. The continuous filtration device according to claim 1, wherein the diameter of each P body gradually increases toward both ends.