JPH0647071B2 - Reactor - Google Patents

Description

Description: TECHNICAL FIELD OF THE INVENTION The present invention relates to a reaction apparatus provided with stirring blades, and more particularly to a reaction apparatus capable of compacting the stirring blades in and out in a narrow space.

[Conventional device]

Some reactors are equipped with stirring blades for uniform mixing and stirring or for promoting uniform reaction. Such stirring blades are usually supported at the upper end above the reaction vessel, and the main body of the stirring blade is inserted downward.

In general, such stirring blades are regularly or irregularly taken out of the reaction tank to be washed or otherwise treated. However, in the case of a stirring blade having a long insertion length, in order to draw the whole of the stirring blade to the outside of the reaction tank, it has to be pulled up to a considerably high position above the reaction tank. Therefore, the building that houses the reactor must be tall, and it cannot be installed in a building with height restrictions, and it requires a large space around the reaction tank to raise it. There was a problem.

[Problems to be Solved by the Invention]

An object of the present invention is to provide a reaction device that allows even a stirring blade having a long insertion length to be put in and taken out from a reaction tank in a compact manner, and the putting-out mechanism can be installed outside the reaction tank without requiring a large space. To provide.

[Means for Solving the Problems]

In the present invention for achieving the above object, a fixing base is provided on the outside of the side wall of a reaction tank, a supporting arm is pivotally supported on the fixing base at a pivot fulcrum Os, and an upper end portion of a stirring blade is provided at the other end of the supporting arm. In a reaction device which is supported in a cantilever manner and in which the main body portion of the stirring blade can be put in and out of a reaction vessel by swinging the supporting arm, another extension arm is provided above the supporting arm at the upper end portion of the stirring blade. It is fixed, the upper end of an actuator for expansion and contraction operation is connected to the rear end of the extension arm, and the lower end of the actuator is a pivot provided on the same plane closer to the reaction tank than the pivot fulcrum Os of the support arm of the fixed base. It is characterized by being pivotally supported on the fulcrum Oa.

In this way, the upper end of the stirring blade is cantilevered by the supporting arm pivotally supported by the fixed base provided on the outer side wall of the reaction tank, so that the main body of the stirring blade can be compactly taken in and out of the reaction tank. Moreover, by fixing the extension arm above the support arm and using this extension arm,
Since the pivot point Oa of the actuator on the fixed table is located on the same plane as the pivot point Os of the support arm and closer to the reaction tank than the pivot point Os, the mechanism for moving the stirring blade in and out can be compactly installed outside the reaction tank. To

〔Example〕

In the embodiment shown in the figure, 1 is a reaction tank and 2 is a stirring blade. The stirring blade 2 is configured by mounting a plurality of blades 4 on a shaft 3 in multiple stages, and the upper end of the shaft 3 is supported by a support portion 5.
Therefore, it is supported in a cantilever manner, and is rotationally driven by the motor 6. The stirring blade 2 supported above the reaction tank 1 has its main body part
It is designed to be inserted into the inside of a container to stir the reaction product in the tank.

The supporting portion 5 of the stirring blade 2 is provided on a fixed table 7 placed outside the side wall of the reaction tank 1. The support portion 5 is composed of a support arm 5a, an extension arm 5b, and an actuator 9 for expanding and contracting, and the support arm 5a is a stirring blade 2
Is cantilevered and is swingably supported at a pivot point Os on the fixed base 7. At the upper end of the stirring blade 2, an extension arm 5b is provided above the support arm 5a.
Are fixed in parallel, the upper end of the actuator 9 is rotatably connected to the rear end of the extension arm 5b, and the lower end of the actuator 9 is pivotally supported at a pivot point Oa on the fixed base 7. Moreover, this pivot point Oa is the support arm 5a.
Is provided on the same plane as the pivot fulcrum Os of
It is located closer to the reaction tank than.

The actuator 9 is not particularly limited as long as it can expand and contract. For example, an air cylinder, a hydraulic cylinder,
A mechanism such as a screw mechanism is preferably used.

When the cantilever support arm 5a is reciprocally rocked as described above, the stirring blade 2 inserted into the reaction vessel 1 as shown by the solid line draws a locus as shown by an arrow A while maintaining a lying posture, It is pulled up to the position shown by the chain line outside the reaction vessel.
On the contrary, the stirring blade taken out to the outside of the reaction tank is returned to the solid line position in the reaction tank while drawing a locus as indicated by the arrow A ′ and maintaining the lying posture.

That is, in the above-described reaction apparatus, when the stirring blade 2 is pulled out from the reaction tank 1, the stirring blade 2 can be operated in an extremely narrow region without being pulled up above the reaction tank. Such an effect is that the insertion length l of the stirring blade 2 into the reaction tank 1 is very long, and l> is larger than the reaction tank diameter L>.
It is possible even if there is an L relationship. Therefore, the present invention is particularly effective for the reactor having the relationship of 1> L.

Further, as the support portion 5, an extension arm 5b is attached to the upper side of the support arm 5a, and by using the extension arm 5b, the pivot point Oa at the lower end of the actuator 9 is on the same plane as the pivot point Os of the support arm 5a. , And pivot point O
Since it is located closer to the reaction tank than s, without increasing the installation space of the support portion 5 in the vertical and horizontal directions,
Can be made compact.

〔The invention's effect〕

As described above, in the reaction apparatus of the present invention, the upper end portion of the stirring blade is cantilevered by the supporting arm pivotally supported by the fixed base arranged outside the side wall of the reaction tank, so that the main portion of the stirring blade is supported by the reaction tank. It can be put in and taken out compactly. Moreover, by fixing the extension arm above the support arm and using this extension arm, the pivot point Oa of the actuator on the fixed base is on the same plane as the pivot point Os of the support arm and more than the pivot point Os. Since it was placed near the reaction tank,
Allows a mechanism for installing and removing stirring blades to be installed compactly outside the reaction tank.

[Brief description of drawings]

FIG. 1 is a schematic diagram showing a reaction apparatus according to an embodiment of the present invention. 1 ... Reaction tank, 2 ... Stirring blade, 3 ... Shaft, 4 ...
... blades, 5 ... (cantilever) support part, 5a ... support arm, 5b ... extension arm, 6 ... motor, 9 ... actuator, Os ... (support arm) pivot point, Oa ...
The pivot point (of the actuator).

Claims (1)

[Claims] 1. A fixing base is provided on the outside of a side wall of a reaction tank, a supporting arm is pivotally supported on the fixing base at a pivot point Os, and the other end of the supporting arm cantilever-supports an upper end portion of a stirring blade. A reactor in which the main body of the stirring blade can be moved in and out of the reaction vessel by swinging the support arm, wherein another extension arm is fixed above the support arm at the upper end of the stirring blade, The upper end of an actuator for expansion and contraction is connected to the rear end of the extension arm, and the lower end of the actuator is pivoted to a pivot point Oa provided on the same plane closer to the reaction tank than the pivot point Os of the support arm of the fixed base. Supported reactor.