JPS6357055B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a grain steaming machine for rapidly depositing grains in large quantities, and in particular, a grain steamer having a grain inlet, a wire gauze for holding grains on its upper surface, and a drain. Therefore, the grain steamer is rotatably attached to a support, and includes the grain steamer, a steam/water separation cyclone, a heat exchanger, pipes connecting these in this order to an endless circulation path, and a fan that circulates gas in this order. The grain steamer is further characterized in that the grain steamer is provided with a pipe having a steam outlet opening at the top and a pipe having an exhaust steam recovery port opening at the bottom.

Embodiments of the present invention will be described in detail below with reference to the drawings.

A grain steamer according to the invention is indicated generally by the number 1. The grain steamer 1 mainly consists of a steamer 2, a steam/water separation cyclone 3, a fan 4, and a heat exchanger 5, through which gas is circulated in a sealed manner as will be described later.

This will be explained in detail below. The steaming pot 2 has a pair of hollow rotating shafts 30, 3 on both outer sides of the central part in the height direction.
A grain inlet 9 with a lid 10 is provided at the top, and a drain 11 with a valve is provided at the bottom. Further, the steamer 2 is provided with a pipe 14 serving as a steam passage passing through the rotating shaft 30 at the center of the interior in the height direction. This pipe 14 is bent upward at the center, passes through a wire mesh 7 to be described later, extends upward, and has a steam jetting pipe 13 having a steam jetting port 12 at its upper end.
is connected to. Further, the steamer 2 is provided with a pipe 16 serving as an exhaust steam passage that is located coaxially with the pipe 14, passes through the interior of the rotating shaft 31, and is bent downward in the middle.
6 extends vertically downward in order to recover the exhaust steam in the steam boiler 2, and has an exhaust steam recovery port 34 at the lower end.
An exhaust steam recovery pipe 15 that opens is connected to the exhaust steam recovery pipe 15. The steaming pot 2 includes the pair of rotating shafts 3 mentioned above.
Posts 27 on foundations 23, 24 by 0,31;
It is rotatably attached to 28. In this embodiment, the steamer 2 is typically rotated by a motor 6, but it can also be rotated using other mechanical devices.

A wire gauze 7 is stretched inside the steamer pot 2, and supports the input grains 29 on its upper surface.
Furthermore, a rotary blade 33 for stirring grains is provided in the steamer 2.
It is also possible to provide Furthermore, a removable umbrella 8 can be provided as an accessory of the steamer 2 to prevent grains from clogging the steam outlet 12 when grains are introduced.

The outer end of the pipe 16 is connected to a fixed steam recovery pipe 32 via a rotatable pipe joint 26. The steam recovery pipe 19 is connected to the steam/water separation cyclone 3.

The air/water separation cyclone 3 is equipped with a drain 18 equipped with a valve at its bottom and a clean air outlet pipe 17 extending from the bottom to the top at the center. The pipes 32 arranged in are connected to each other. This pipe 32 is then connected to the heat exchanger 5.

A steam supply pipe 21 for steam replenishment and a gas delivery pipe 20 for sending out the heat-exchanged gas are connected to the heat exchanger 5. steam supply pipe 2
2 are connected. The delivery pipe 20 is connected to the aforementioned pipe 14 via a rotatable pipe joint 25.
An endless circulation path is formed by the steam boiler 2, the steam/water separation cyclone 3, the heat exchanger 5, and the aforementioned pipes that connect these in this order. Then, gas (particularly steam) flows through this circulation path in the direction shown by the arrow in the figure.

Next, the operation of the grain steamer 1 according to the present invention will be described in detail. After opening the lid 10 of the steam pot 2 and attaching the umbrella 8, grains 29 are thrown into the steam pot 2 through the grain inlet 9. Thereafter, the lid 10 is sealed. Cereals 29
is stirred by a stirring rotary blade 33 as desired. Next, the fan 4 and heat exchanger 5 are operated.
At this time, the heat exchanger 5 is set to a heating function and is operated to heat the steam. Further, steam is supplied from steam supply pipes 21 and 22, and the steam is circulated in the direction of the arrow in the figure. Then, the heated steam is blown into the grains in the steam pot 2 from the steam outlet 12 through the pipe 14 and the steam jetting pipe 13, and after passing through the grains 29, the heated steam is transferred from the exhaust steam recovery pipe 15 to the pipe 16 and then to the steam recovery pipe. 19 in this order, and is sent to the steam/water separation cyclone 3. At this time, some of the steam in the steam pot 2 is condensed to water, and this water is drained out of the steam pot 2 through the drain 11. The steam sent to the steam/water separation cyclone 3 is purified by removing coagulated water droplets and the like contained therein by the action of the steam/water separation cyclone 3. Water droplets and the like removed here are discharged from the drain 18. The purified steam is then transferred from the steam extraction pipe 17 to the steam pipe 3.
2 to the heat exchanger 5 by the fan 4. The steam is heated here and sent to pipe 20 and pipe 14 again. Then, by repeating the above cyclone, the grains 29 in the steamer 2 are
will be rapidly deposited.

Next, once the grain 29 has been deposited, the heat exchanger 5 is switched to a cooling operation. The steam that has been circulating will then condense into water, and the cold air will then be circulated through the same path as the steam flow. The steamed grains are therefore immediately cooled. After cooling to a desired temperature, the operation of the fan 4 and the heat exchanger 5 is stopped, and then the motor 6 is rotated and the steamer 2 is heated.
, and cover the steamed grains in steamer pot 2 with lid 1.
Open 0 and take it out. Therefore, the grain can be taken out extremely easily and reliably. In addition,
In the above embodiment, the fan 4 is the air/water separation cyclone 3.
Although it is arranged between the heat exchanger 5 and the heat exchanger 5, the arrangement is not limited to this arrangement, and it goes without saying that it can be arranged at any desired position in the circulation path.

The grain steamer according to the present invention has the above-described structure, and since steam is blown into the grains from above to below, there is no condensation on the grains, the wire mesh, or the inner peripheral wall of the steamer, and even if steam is Even if the grains freeze, they are immediately blown down and discharged, making it possible to obtain steamed grains in the optimum condition. Furthermore, since the steam is rapidly circulated, the steaming time can be extremely shortened. In addition, the steamed grains can be easily cooled immediately after steaming, and the steamed grains can be removed from the steamer by simply rotating the steamer by 180 degrees, making it easy to handle. It is possible to obtain steamed rice in the optimum condition. Therefore, according to the grain steamer of the present invention, it is possible to quickly obtain steamed grains in large quantities.

[Brief explanation of the drawing]

The drawing is a schematic representation of a grain steamer according to the invention. 1... Grain steamer, 2... Grain steamer, 3...
Steam/water separation cyclone, 4...fan, 5...heat exchanger, 7...wire mesh, 12...steam outlet, 13,
15... Pipe, 33... Rotating vane, 34... Exhaust steam recovery port.

Claims (1)

[Scope of Claims] 1. A steaming pot is formed in the shape of a hollow can body, a wire mesh is stretched inside the boiling pot, and a pair of hollow rotating shafts are provided protruding from both outsides of the central part of the steaming pot in the height direction. A rotating shaft is rotatably attached to a support on the base, a lid is provided at the top of the steamer, and a drain with a valve is provided at the bottom, and one of the rotating shafts 30 of the pair of rotating shafts is , a steam jet pipe having a pipe 14 penetrating the inside thereof and penetrating into the inside of the steam boiler, the pipe being bent upward to extend upward through the wire mesh, and having a steam jet opening at the upper end. The other rotating shaft 31 is provided with a pipe 16 which penetrates the inside of the steamer and into the steamer, and the pipe is bent downward to form an exhaust gas with an exhaust steam recovery port at its lower end. A steam recovery pipe is also connected, and the outer end of the pipe 16 is connected to the steam recovery pipe via a rotatable pipe joint 26, and the steam recovery pipe is connected to a steam separation cyclone, and the steam recovery pipe is cleaned. The gas outlet pipe is connected to a heat exchanger having a steam supply pipe, and the gas delivery pipe of the heat exchanger is connected to the pipe 1.
4 through a rotatable pipe joint 25, an endless circulation path consisting of a steam boiler, a steam/water separation cyclone, and a heat exchanger is formed, and in the middle of the circulation path, gas is A grain steamer, comprising: a steamer, a steam/water separation cyclone, a heat exchanger, and a fan that causes water to flow through the steamer in this order; and a rotary drive device on the rotating shaft. 2. Grain steamer according to claim 1, characterized in that when the heat exchanger is set to heating action, the gas is steam. 3. Grain steamer according to claim 1, characterized in that when the heat exchanger is set to cooling action, the gas is cooling air. 4. The grain steamer as set forth in each of the preceding claims, characterized in that the steamer is provided with a rotary blade for stirring the grains inside the steamer.