JPS606412Y2 - High viscosity substance processing equipment - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an apparatus for continuously processing a highly viscous substance, and its purpose is to suppress fluctuations in the viscosity of the substance to be processed.

Conventional equipment for continuous processing of high viscosity substances, especially when dealing with polyester continuous polycondensation reactions, is usually horizontal, with one rotating shaft equipped with stirring blades.
A book or two are mounted parallel to the device.

Furthermore, in order to increase the volumetric efficiency of the device, partition plates are provided to divide the device into multiple tanks.

However, when using conventional equipment, changes in inlet viscosity,
When the viscosity of the substance to be treated changes due to changes in the reaction temperature or degree of vacuum, the amount of the substance to be treated that is held between the stirring blades will inevitably change, and this will cause the residence time and reaction time to change. Conventional devices have no self-control over viscosity fluctuations; as a result, the viscosity also fluctuates.

Therefore, the inventors of the present invention have devoted themselves to research and efforts aimed at suppressing viscosity fluctuations of the material to be treated in an apparatus that continuously processes high-viscosity materials, and as a result, the time has come to complete the present invention. Ta.

In other words, the present invention provides a high viscosity substance processing apparatus in which stirring blades are attached at right angles to the rotating shaft for industrial water or higher, in which the height of the partition plate that divides the apparatus into multiple tanks is greater than or equal to the diameter of the stirring blade,
The partition plate is provided with an opening so that the substance to be treated flows from the inlet to the outlet, and a guide plate is attached to the opening to guide the substance to be treated to the downstream chamber. This is a high viscosity substance processing device.

The high viscosity substance processing equipment of the present invention is applicable not only to polycondensation reactors used in polyester production, but also to various other high viscosity substances such as solvent removal, absorption, reaction, and mixing of different substances using reaction diffusion on the surface of high viscosity substances. It can be applied to processing.

Next, the present invention will be specifically explained using the drawings.

Figure 1 is a plan view of a conventional horizontal biaxial polycondensation reactor.
FIG. 2 is a longitudinal cross-sectional view of the reactor shown in FIG. 1, and FIG. 3 is a cross-sectional view.

In FIG. 1, the reactor wall 1 is heated by a heating jacket 8. In FIG.

Two rotating shafts 2 are installed, and although not shown, one end of one of the two shafts is normally connected to a drive device, and the other shaft is interlocked and rotates in opposite directions from the inside to the outside. rotating in the direction.

Furthermore, when viewed from the axial direction, the liquid surface shape 11 of the reactant is supplied from the supply pipe 6, pushed out, and directed toward the discharge pipe 7 while maintaining a shape that swells in the center as shown in FIG. distributed.

In addition, 3 is a stirring blade, 4 is a partition plate, 5 is a scraping blade, 9
10 indicates the seat for mounting the stirring blade, and 10 indicates the exhaust pipe.

Next, Figures 4 to 7 show examples of embodiments of the apparatus of the present invention. Figure 4 is a vertical cross-sectional view of the horizontal twin-shaft polycondensation reactor of the present invention, and Figure 5 is a vertical cross-sectional view of the horizontal single-shaft polycondensation reactor of the present invention. Front view, Figures 6 and 7
The figures are cross-sectional views of the reactors shown in FIGS. 5 and 6, respectively.

In Figures 4 to 7, 12 is a partition plate, 13 is an opening, and 14 is a partition plate.
is a guide plate, and FIG. 8 shows a perspective view of the partition plate.

In this invention, the height of the partition plate is equal to or greater than the diameter of the stirring blade, and the height of the partition plate is greater than the diameter of the stirring blade, so that the substance to be treated moves through the opening in the partition plate without exceeding the partition plate. It is necessary to leave a little space between it and the ceiling, or to open a ventilation hole in the partition plate.

In addition, the shape of the hole can be various shapes such as rectangular, circular, oval, etc., but it is preferable that both the length and width are equal to or less than the radius of the stirring blade, and the position of the hole is as shown in the figure.
It is best to choose a location that can maintain the minimum amount of retention.

The guide plate attached to the opening is for guiding the substance to be treated to the downstream chamber, and when the viscosity of the substance to be treated becomes low, it serves to suppress the amount of the substance passing through. The partition plate maintains an angle of 30' to 80' and may be the same or different in shape from the opening, and may be plate-shaped as shown in Figure 8, or may be shaped like a plate surrounding the opening (not shown). It can also be a shape.

As described above, when the device of the present invention having such a configuration is used, the causal relationship between the viscosity, retention amount, and passing amount as described above is improved, and even if the viscosity of the substance to be treated varies, the difference in variation is considerably alleviated. .

Next, examples will specifically show the effects of using the device of the present invention.

Example Using the conventional apparatus shown in Figures 1 to 3 and the apparatus of the present invention shown in Figure 5.7, starch syrup at 20°C and 240 poise was passed through each, and at a certain moment, the water was flowing through the jacket of the apparatus. The water temperature was raised by 3°C, and the flow rate, viscosity, and temperature of the starch syrup were then measured at m-minute intervals.

The results are shown in the graph of FIG. The conventional device and the device of the present invention used in this example had one stirring blade and four partition plates.

In FIG. 9, a shows the results when the conventional device was used, and b shows the results when the device of the present invention was used.

As is clear from Fig. 9, it is better to use the device of the present invention.
It can be seen that the fluctuations in the outlet flow rate and the retention amount have become smaller.

[Brief explanation of the drawing]

Figures 1 to 3 show conventional equipment, with Figure 1 being a plan view and Figure 2 being a plan view.
The figure is a longitudinal cross-sectional view, and FIG. 3 is a cross-sectional view. Figures 4 to 7 show the device of the present invention; Figure 4 is a vertical cross-sectional view of a horizontal biaxial polycondensation reactor, Figure 5 is a vertical cross-sectional view of a horizontal single-shaft polycondensation reactor, and Figures 6 and 7 are Each cross-sectional view is shown, and FIG. 8 is a perspective view of the partition plate of the present invention. FIG. 9 is a graph showing the measurement results of the example. 1... Reactor wall, 2... Rotating shaft, 3.
... Stirring blade, 4 ... Partition plate, 5 ...
... scraping blade, 6 ... supply pipe, 7 ...
...Discharge pipe, 8...Heating jacket, 9...
...Attach the stirring blade to the seat, 10...Exhaust pipe,
11... Liquid surface shape, 12... Partition plate of the present invention, 13... Opening portion, 14... Guide plate.

Claims (1)

[Scope of utility model registration request] In a high viscosity substance processing device in which stirring blades are attached at right angles to one or more rotating shafts, the height of the partition plate that divides the device into multiple tanks is greater than or equal to the diameter of the stirring blade, and the material to be processed is placed on the partition plate. An opening is provided so that the water flows from the inlet to the outlet.
A high viscosity substance processing apparatus, further comprising a guide plate attached to the opening for guiding the substance to be processed to a downstream chamber.