JPS6028481Y2 - Rotary concentrator - Google Patents

Description

[Detailed explanation of the idea] This invention relates to a rotary concentrator.

Conventionally, cylindrical containers with heating jackets are often used in evaporative concentration devices for high viscosity, but since the heat transfer surface of this device can only be used on the inner surface of the cylindrical heating barrel, it cannot be applied to products with a large amount of evaporation. There were some difficult aspects.

Therefore, there is an improved method in which a plurality of hollow disks are arranged, an internal heating medium is passed through, and both sides of the hollow disks are used as heat transfer surfaces.
The structure was complicated because it used a nozzle, and the application was not reliable.

This idea solves these conventional drawbacks by arranging multiple hollow disks, passing a heating medium inside them, using both sides of the hollow disks as heating surfaces, and increasing the number of hollow rotating disks according to the amount of evaporation. It is designed to handle a large amount of evaporation, and is equipped with a packet around the disk as a means of applying the liquid to be treated onto the disk.It has a simple structure and can reliably apply the liquid to the disk. It is possible.

To explain the figures, FIG. 1 is a side sectional view of the implementation of this invention, and FIG. 2 is a sectional view taken along the line X-X in FIG.
Reference numeral 1 indicates a casing, which is closed by a side cover 2 and can hold a predetermined amount of the liquid to be treated inside.

3 is an inlet nozzle for supplying the liquid to be treated, 4 is an outlet nozzle for concentrated liquid, 5 is an outlet for steam from which water in the liquid to be treated has evaporated, 6
are legs that support the casing 1.

A hollow shaft 7 is installed horizontally in the casing 1, and a plurality of hollow discs 8 are provided on the hollow shaft.

11 is a shaft sealing device, 12 is a bearing device that supports the horizontal shaft, and 13 is a drive device for rotating the horizontal shaft.

14 is a heating steam inlet, 15 is a drain outlet, 16
is a communication hole through which heating steam enters the disk from inside the hollow shaft.

Further, W in FIGS. 1 and 2 indicates the liquid level inside the casing.

A plurality of packets 19 are provided on the outer peripheral surface of each disk.
・Equipped with

10 is a device for scraping off solid matter adhering to the disk surface.

To explain the operation, the liquid to be treated is supplied from the inlet nozzle 3 and is temporarily stored in the casing.

Since packets 19, . . . are fixed around each hollow disk, as shown in FIG. As it rotates, it gradually falls from the packet when it reaches the top, ensuring that it is evenly applied to the surface of each disc.

Note that the packet may be shaped like a feather. In this design, a packet is attached to each disk, and no extra liquid is scooped up beyond what evaporates, so power is not wasted.

Since heating steam is supplied into the hollow disk from the nozzle 14, the entire disk serves as an effective transmission surface.

Furthermore, even if solid matter adheres to the heat transfer surface, the scraping device 1
Since the heat transfer coefficient is always removed by zero, a constant heat transfer coefficient can be maintained throughout.

Since this invention has such a structure, there is no need for pipes, nozzles, etc. to apply the material to be treated onto the disk, and it can be applied reliably and uniformly with a simple structure, and since the liquid is stirred with a packet, It also has effects such as improving heat transfer performance and mixing liquids.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of an embodiment of this invention, and FIG. 2 is a sectional view taken along the line X--X in FIG. Explanation of symbols, 1...Casing, 2...
・Side cover, 3... Inlet nozzle, 4...
...Outlet nozzle, 5...Steam outlet, 6...
... Legs, 7 ... Hollow shaft, 8 ... Hollow disk, 10 ... Scraping device, 11 ...
・Shaft sealing device, 12...Bearing device, 13...
...Drive device, 14...Steam inlet, 15...
...Drain outlet, 16...Steam passage,
19...Packet.

Claims (1)

[Scope of utility model registration request] In a concentrator that has a plurality of hollow rotating disks in a casing that can hold a predetermined amount of liquid to be treated and a hollow horizontal rotating shaft that supports them, a plurality of packets are provided around each hollow disk. A rotary concentrator characterized by: