JPS6349189Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an expansion can that utilizes centrifugal force to separate the product obtained by the expansion treatment from a heating medium when expanding raw materials.

Conventionally, the pressure heating and swelling treatment of raw materials has been carried out in the following manner using, for example, an apparatus as shown in FIG.

That is, in FIG.
is introduced into the heating tube 304 via the
The superheated steam flowing through the cyclone 301 is heated under high pressure, and the superheated steam is supplied to the cyclone 301 together with the superheated steam. The raw material and superheated steam are separated in this cyclone 301, and the steam is drawn from above by a circulation blower 306 and circulated within the system, while the raw material is introduced from below the cyclone 301 into the expansion can 310 via the discharge valve 314. This expansion can 31
Expansion processing is performed within 0.

The thus expanded product is recovered from below the expansion can 310 by pneumatic transportation.

Therefore, when the raw material is introduced into the expansion can 310 via the discharge valve 314, the superheated steam is also introduced into the expansion can 310.
This superheated steam is cooled and condensed, and as a result, the transport air contains moisture and has a high dew point. Therefore, it is necessary to take measures to make the product moisture-proof, such as keeping the air transport pipe warm.

In addition, since the raw material was introduced into the expansion can 310 from the center of the upper surface of the expansion can 310 as shown in the figure,
There was a disadvantage that the material was damaged as a result of considerable impact.

The present invention has been made to effectively eliminate the above-mentioned disadvantages in expansion cans, and its purpose is to:
The material supply pipe is tangentially connected to the outer cylinder, and the inner cylinder is led upward and connected to the exhaust duct, which allows the heating medium and the product to be separated by centrifugal force. To provide an expanding can which can be separated to prevent the product from getting wet and effectively prevent the product from being damaged by impact.

A preferred embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

Figure 1 is an overall configuration diagram of a raw material processing equipment including an expansion can according to the present invention, and Figure 2 is a diagram of Figure 1.2.
-2 line sectional view.

In Fig. 1, 1 is a known cyclone,
A raw material supply pipe 2 is connected to the cyclone 1 in the tangential direction, and a steam discharge pipe 3 is connected to the upper center. A heating pipe 4 is connected to the raw material supply pipe 2 as shown in the figure, and a steam pipe 5 is connected to the steam discharge pipe 3, and the steam pipe 5 is connected to the heating pipe 4 through a circulation blower 6 and a super heater 7. These 4 and 5 constitute a closed loop. Also, a steam pipe 8 led from a boiler (not shown) is a super heater 7.
It is connected to the heating tube 4 via. Further, a raw material input valve 9 is connected to the heating pipe 4.

On the other hand, below the cyclone 1, an expansion can 10 according to the present invention is installed. This expansion can 10
It has a double cylindrical structure with inner and outer cylinders 11 and 12, and the outer cylinder 12 is connected to the lower part of the cyclone 1 via a raw material supply pipe 13 and a discharge valve 14 as shown in the figure. The raw material supply pipe 13 is connected to the outer cylinder 12 in a tangential direction as shown in FIG.

The lower end of the inner cylinder 11 opens into the outer cylinder 12, and the upper end of the inner cylinder 11 extending above the outer cylinder 12 is connected to a condenser 17 via an exhaust duct 15 and an exhaust blower 16 as shown. The lower end of the inner cylinder 11 is connected to a product recovery pipe 19 via a discharge valve 18.

The entire expansion can 10 constructed in this way is a heat insulation can 2.
Covered by 0.

Next, the operation of the expansion can 10 will be explained while explaining the raw material processing process.

The raw material is introduced into the heating tube 4 through the input valve 9, and is mixed with high-pressure superheated steam flowing inside the heating tube 4. This raw material is heated under high pressure with superheated steam while flowing through the heating pipe 4, and introduced into the cyclone 1 along with the superheated steam from the raw material supply pipe 2 in the tangential direction. In the cyclone 1, the raw material and steam are separated by centrifugal force, and the steam is drawn from the steam exhaust pipe 3 to the circulation blower 6 and introduced into the super heater 7. The temperature of the steam discharged from the cyclone 1 decreases due to heat exchange with the raw material or piping, and the degree of superheating decreases, or it becomes saturated steam or wet steam,
This water vapor is heated to a predetermined degree of superheating by the super heater 7, introduced into the heating tube 4, and circulated within the system. Since the superheated steam in the system leaks to the outside through valves and the like, the leaked superheated steam is replenished with the superheated steam supplied from the steam pipe 8, and a certain amount of steam is circulated within the system.

On the other hand, the raw material separated in the cyclone 1 is passed through the discharge valve 14 and the raw material supply pipe 13 to the expansion canister 1.
0 in the tangential direction and is subjected to the swelling process. At this time, some of the superheated steam in the cyclone 1 is introduced into the expansion can 10 along with the raw material, and these raw materials and steam swirl in the direction of the arrow in FIG. Similarly, the raw material and water vapor are separated by the action of centrifugal force, and the water vapor is drawn above the inner cylinder 11 by the exhaust blower 16 and introduced into the condenser 17, where it exchanges heat and condenses to become water. This condenser 17 recovers the thermal energy of the steam.

On the other hand, the raw material, which is separated from water vapor in the expansion can 10 and does not contain any moisture, is recovered as a product from below the expansion can 10 via a discharge valve 18 and a recovery pipe 19.

As described above, in the expansion can 10, the raw material is expanded and the raw material and water vapor are separated at the same time, so there is no need for special moisture-proofing measures for the raw material as in the past.

Moreover, since the raw material is supplied into the expansion can 10 in the tangential direction, the impact force at this time is alleviated, and damage to the product is effectively prevented.

Furthermore, the thermal energy of the steam discharged from the expansion canister 10 is recovered by the condenser 17 and reused, which is advantageous in terms of energy economy.

Next, a modified embodiment of the present invention will be described based on FIGS. 3 and 4.

FIG. 3 shows an example in which an exhaust duct 115 connected to the inner cylinder 111 of the expansion can 110 extends directly upward, and a drain tank 121 and a drain valve 122 are disposed in the horizontal lower part of the duct 115. Of the water vapor discharged from 110, the condensed water is stored in a drain tank 121 and periodically discharged from the system through a valve 122. The rest of the configuration of the processing device is the same as that shown in FIG.

Further, FIG. 4 shows an example in which a steaming can 201 is used instead of the cyclone 1 in FIG.
A direct input valve 209 is connected to the upper part of 01.

Then, the steaming can 2 is fed through the input valve 209.
The raw material supplied into the can 201 is subjected to high-pressure heat treatment with saturated steam introduced through a steam pipe 205 provided on the side of the can 201, and thereafter is heated to the expansion can 210 in the same manner as in the embodiment shown in FIG. Separated into raw material and steam inside.

Thus, in the modified embodiments shown in FIGS. 3 and 4, the same effects as obtained in the embodiment shown in FIG. 1 can be obtained.

Furthermore, FIG. 6 shows another embodiment of the method of charging raw materials into the expansion can 12. For example, when the product is viscous, such as defatted soybeans treated with saturated steam, by forming the raw material supply pipe 13 in a straight line as in this embodiment, it is possible to prevent the product from adhering to the wall of the pipe 13. . Note that the reference numerals in the figures refer to the same parts as above, and detailed explanation of each part is omitted.

In the embodiments described above, steam was used as the heating medium, but any other heating medium may be used.

As is clear from the above explanation, according to the present invention, the expansion can is constructed into a double cylindrical shape with an inner and an outer cylinder, and the raw material supply pipe is tangentially connected to the outer cylinder, and the inner cylinder is guided upward. Since the heating medium and the product are connected to the exhaust duct, the heating medium and the product can be completely separated by centrifugal force, and the product can be prevented from getting wet and damaged due to impact.

[Brief explanation of the drawing]

Figure 1 is an overall configuration diagram of a raw material processing equipment including an expansion can according to the present invention, and Figure 2 is a diagram of Figure 1.2.
-2 line sectional view, FIGS. 3 and 4 are similar to FIG. 1 according to a modified embodiment of the present invention, FIG. 5 is an overall configuration diagram of a raw material processing apparatus according to a conventional example, and FIG. It is another Example figure. In addition, in the drawing, 1 is a cyclone, 2 and 13 are raw material supply pipes, 4 is a heating pipe, 9 and 209 are raw material input valves,
10, 110, and 210 are expansion cans, 14 is a discharge valve, 15, 115 is an exhaust duct, and 20 is a heat-retaining pipe.

Claims (1)

[Scope of utility model registration request] This is a device that expands raw materials that have been heat-treated with a heating medium under high pressure, and is constructed in an inner and outer double cylindrical shape, with the raw material supply pipe for supplying the heat-treated raw materials placed in the outer cylinder. An expansion canister characterized by being connected in a tangential direction and having an inner cylinder led upward and connected to an exhaust duct.