JPH0696118B2 - Regenerating apparatus for a plurality of reaction tanks and operating method thereof - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a plurality of reaction tank regenerators suitable for producing a high-purity product using a plurality of reaction tanks and a method of operating the same. It is a thing.

(Prior Art) When manufacturing chemicals or other products using a plurality of reaction tanks, each reaction tank (51) is arranged as shown in FIGS. 6 and 7, and The liquid supply pipe (52) of the reaction tank (51) is connected to the stock solution line (55) and the chemical solution line (56) through the valves (53) and (54), respectively, and the drainage of each reaction tank (51) A reactor in which a pipe (57) is connected to a product take-out line (60) and a chemical solution take-out line (61) via valves (58) and (59) is used. And normally, as shown in Fig. 6, the valves (53) and (58) are opened and the valves (62) and (63) are closed to No. 1 to N.
o.6 reaction tanks (51) are connected in series to connect No. 1 reaction tank (5
The stock solution supplied to the stock solution line (55) in 1) is gradually converted into products as it passes through the inside of each reaction tank (51), and the concentration is obtained from the product take-out line (60) of the final reaction tank (51). Is to be taken out as an enhanced product.

However, it is inevitable that this type of reaction tank will gradually deteriorate the reaction after long-term use, and it is necessary to periodically send the chemical solution from the chemical solution line (56) into each reaction tank (51) to regenerate it. Cause Therefore, conventionally, as shown in FIG. 7, the stock solution system valve (53), valve (58) and valve (62) of the reaction tank (No. 2 in the illustrated example) to be regenerated is closed and the stock solution is used as the reaction solution. While bypassing No.2, open the valve (54) and valve (59) of the chemical system, and open each reaction tank (5
The chemical solution and the washing water were sequentially introduced into the inside of 1) to perform the regeneration. However, in such a conventional regeneration method, the part between the valve (53) and the valve (54) of the liquid supply pipe (52) and the valve (58) and the valve of the liquid discharge pipe (57). (Five
9) There is a residual chemical solution in the area between and, for example, when the chemical solution and the undiluted solution must not be mixed, as in the food industry, a serious drawback of decreasing the purity of the finally obtained product. was there. Moreover, the conventional device as described above has a problem that the piping becomes complicated and the number of valves increases.

(Problems to be Solved by the Invention) The present invention solves the above-mentioned conventional problems and eliminates the possibility that a chemical solution is mixed into a product, and reduces the number of valves to simplify piping. The present invention has been completed in order to provide a plurality of reaction tank regenerators and a method of operating the same.

(Means for Solving the Problem) The above-mentioned problem is to provide a plurality of reaction tanks on the intermittent turntable and a lower valve plate connected to a liquid supply pipe and a liquid discharge pipe to each reaction tank, and An upper valve plate that does not rotate but can move up and down is provided above the lower valve plate, and a desorption valve connected to the feed pipe and drain pipe of each reaction tank is attached to the lower valve plate and the upper valve plate. 2. A plurality of desorption valves according to claim 1, wherein only the desorption valve at a specific position of the valve plate is connected to a chemical liquid supply pipe for supplying a chemical liquid for recovering the activity of the reaction tank and a chemical liquid discharge pipe for discharging the chemical liquid. It is solved by the reactor regeneration device.

Further, the above-mentioned problem is a raw material for producing a product in the reaction tank while intermittently rotating in a state in which a plurality of reaction tanks are connected by connecting the drainage pipe of the previous stage and the feed pipe of the next stage. Injecting a chemical solution for restoring the activity of the reaction tank in place of the above-mentioned raw material solution when each reaction tank rotates to a specific position to cause a reaction by supplying a raw material solution containing The method for operating a regeneration device for a plurality of reaction tanks according to claim 1, characterized in that the regeneration is carried out so as to sequentially recover the activity of the reaction tanks.

In the present specification, the raw material liquid means a raw material liquid containing a raw material for producing a product, the chemical liquid means a chemical liquid for recovering the activity of the reaction tank, and the regeneration means regeneration of the reaction tank. It shall mean to restore activity.

(Example) First, the outline of the present invention will be described with reference to FIG.
Reference numeral (1) is a plurality of reaction vessels (six in the drawing), and each reaction vessel (1) is provided with a liquid supply pipe (2) and a liquid discharge pipe (3). The whole of these reaction tanks (1) can be intermittently rotated, and at the stop position, the drain pipe (3) of the reaction tank (1) of the preceding stage is the reaction tank (1) of the next stage as shown in the figure. The fixed side pipe (4) is provided so as to be connected to the liquid supply pipe (2). Therefore, if the raw material liquid is supplied from the liquid supply pipe (2) of the No. 1 reaction tank (1) as shown in the figure, the raw material liquid is gradually converted to the product by the reaction inside each reaction tank (1), It is taken out from the No. 5 reaction tank (1).

However, at this time, in the state of FIG. 1 which has rotated to a specific rotation position, only the liquid supply pipe (2) and the liquid discharge pipe (3) of the reaction tank (1) of No. 6 have the chemical liquid supply pipe (5) and the chemical liquid. Regeneration is achieved by being connected to the discharge pipes (6) and injecting a chemical solution into the reaction tank (1). As described above, in the present invention, the reaction tank (1) that has been rotated to a specific position is sequentially regenerated, while the reaction can be continued in the other reaction tanks (1), and all reaction tanks (1) have a constant rate. It becomes possible to perform reproduction at intervals of. Further, according to the present invention, the piping can be greatly simplified as compared with the conventional one, and unlike the conventional one, the chemical liquid and the raw material liquid are supplied to and discharged from the reaction tank (1) through the same route. It is possible to reliably prevent the chemical solution from remaining in the pipe by injecting the cleaning water after the injection.

Next, the apparatus of the present invention will be described in more detail with reference to FIGS.

In the figure, (1) is a plurality of reaction tanks, the whole of which is installed on an intermittent rotary base (7) and has a structure capable of intermittent rotation by a motor (8) at regular intervals. (9) is a lower valve plate which is also installed on the intermittent rotary table (7), and the liquid supply pipe (2) and the drain pipe (3) extending from each reaction tank (1) are respectively connected to the lower valve plate (9). )It is connected to the.

Reference numeral (10) is an upper valve plate provided adjacently above the lower valve plate (9). The upper valve plate (10) is a cylinder (1) provided on the upper end of a non-rotating center column (11) at the center of the intermittent turntable (7).
It is attached to 2) via a plurality of columns (13) and can move up and down by the action of the cylinder (12) but cannot rotate. The lower valve plate (9) and the upper valve plate (10) are attached to the removable valve (1) as shown in FIG.
4) and (15) are attached in correspondence with the number of liquid supply pipes (2) and liquid discharge pipes (3) of each reaction tank (1). Although not shown in FIGS. 2 and 3, the upper valve plate (1
The pipe (4) as shown in the upper part of FIG. 1 is provided on the (0) side, and only the desorption valve at a specific position on the upper valve plate (10) side is supplied with the chemical solution shown in FIG. The pipe (5) and the chemical liquid discharge pipe (6) are connected.

When the intermittent rotary base (7) is stopped, the upper valve plate (10) descends toward the lower valve plate (9) as shown in FIG.
When (15) is brought into close contact, and the intermittent rotary base (7) is rotated, the detachable valves (14), (15) are separated from each other by raising as shown in FIG. Desorption valve (14), (15)
Are springs (16a), (16b) in the flow path as shown in Fig. 4.
It supports the contact bodies (17) and (18) that are resiliently ejected by the spring. In the state shown in FIG. 4, the tapered portions of the contact bodies (17) and (18) are springs on the tapered portion of the valve body. The flow paths are closed by being pressed by the forces of (16a) and (16b). However, when the attachment / detachment valves (14), (15) are pressed against each other, the contact bodies (17), (18) separate from the valve body against the elastic force of the springs (16a), (16b). It has a structure in which a raw material liquid, a chemical liquid, cleaning water, and the like can be flown into.

As described above, according to the present invention, since the detachable valves (14) and (15) need to be reliably brought into and out of contact with each other, the intermittent turntable (7) is required.
It is necessary to surely lower the upper valve plate (10) toward the lower valve plate (9) and keep it at that position during the stop. Therefore, in this embodiment, the upper valve plate (1
A lock plate (19) is provided above (0). The lock plate (19) is provided with a through hole (21) as shown in FIG. 5 corresponding to the short column (20) projecting above the upper valve plate (10). The whole structure of 19) can be rotated by a small angle by a horizontal cylinder (22). Therefore, as shown in Fig. 2, the cylinder (12)
If the lock plate (19) is rotated by the horizontal cylinder (22) while the upper valve plate (10) is being lowered by the horizontal cylinder (22), the upper end surface of the short column (20) will pass through the through hole (21) of the lock plate (19). 2), the upper valve plate (10) is kept in the lowered position in FIG. 2 even if the pressing force of the cylinder (12) is lost. If the through hole (21) of the lock plate (19) is aligned with the short column (20), the cylinder (1
2) allows the upper valve plate (10) to rise. In addition, (23) is a lock plate (19)
The reinforcing plate provided on the upper surface of (4), (24) shown in FIG. 5, is an elongated hole for avoiding interference with the column (13) when the lock plate (19) is rotated.

According to the apparatus of the present invention described above, the plurality of reaction tanks (1) are sequentially moved by the rotation of the intermittent turntable (7), and each reaction tank (1) is attached / detached to / from the upper valve plate (10) in a specific manner. When the valves (14) and (15) are reached, the chemical solution can be supplied from the chemical solution supply pipe (5) instead of the raw material solution to regenerate the reaction tanks (1) one by one. Further, to the other reaction tank (1), the raw material liquid can be supplied as in the conventional case, and the reaction can be continued to obtain the product.

(Effects of the Invention) As described above, according to the present invention, it is possible to sequentially regenerate one reaction tank while allowing a plurality of reaction tanks to carry out the reaction. Further, at this time, unlike the conventional method, it is possible to prevent the chemical liquid from remaining in the pipe, and to eliminate the possibility that the chemical liquid is mixed in the product. Further, according to the present invention, simplification of piping and reduction in the number of valves can be achieved as compared with the prior art. Therefore, the present invention, as a regenerating apparatus for a plurality of reaction tanks and a method of operating the same, has greatly contributed to the development of industry as it eliminates the conventional problems.

[Brief description of drawings]

FIG. 1 is a piping system diagram for explaining the outline of the present invention, FIG. 2 is a partially cutaway front view for explaining an embodiment of the device of the present invention, and FIG.
The figure is a partially cutaway front view showing the state where the intermittent rotary base is rotating, FIG. 4 is a sectional view showing a detachable valve, FIG. 5 is a plan view of a lock plate, and FIGS. 6 and 7 are conventional methods. It is a piping system diagram explaining. (1): Reaction tank, (2): Liquid supply pipe, (3): Drainage pipe,
(5): Chemical supply pipe, (6): Chemical discharge pipe, (7): Intermittent turntable, (9): Lower valve plate, (10): Upper valve plate, (14), (15): Desorption valve .

Claims (2)

[Claims] 1. A plurality of reaction tanks (1) on an intermittent turntable (7).
And a liquid supply pipe (2) and a liquid discharge pipe (3) to each reaction tank (1)
And a lower valve plate (9) connected to the lower valve plate (9), and an upper valve plate (10) which can move up and down but does not rotate above the lower valve plate (9),
Also, these lower and upper valve plates (9), (1
The desorption valves (14) and (15) connected to the liquid supply pipe (2) and the liquid discharge pipe (3) of each reaction tank (1) are attached to (0) and at a specific position of the upper valve plate (10). Only the desorption valves (14) and (15) were connected to the chemical liquid supply pipe (5) for supplying the chemical liquid for restoring the activity of the reaction tank (1) and the chemical liquid discharge pipe (6) for discharging the chemical liquid. Characterizing multiple reactor regeneration equipment. 2. A plurality of reaction tanks (1) are connected to a drainage pipe (3) in the preceding stage.
And the liquid supply pipe (2) at the next stage are connected to each other, and while being intermittently rotated, a raw material liquid containing a raw material for producing a product is supplied in the reaction tank (1) to react When each reaction tank (1) is rotated to a specific position, a chemical solution for restoring the activity of the reaction tank (1) is injected from the chemical solution supply pipe (5) in place of the raw material solution. The method for operating a plurality of reaction tank regenerators according to claim 1, characterized in that the regeneration of the reaction tanks (1) is sequentially performed thereby.