CN107348359B

CN107348359B - Rice processing method

Info

Publication number: CN107348359B
Application number: CN201710696795.8A
Authority: CN
Inventors: 赵松
Original assignee: Ningxia Saiyun Rice Co ltd
Current assignee: Ningxia Saiyun rice Co.,Ltd.
Priority date: 2017-08-15
Filing date: 2017-08-15
Publication date: 2021-04-02
Anticipated expiration: 2037-08-15
Also published as: CN107348359A

Abstract

The invention discloses a processing method of rice, which sequentially comprises a mixing step, a granulating step, a stewing step, a drying step and a cooling step, wherein the drying step and the cooling step are carried out in a drying device, the drying device comprises a box body, a drying cylinder and a cooling cylinder, alcohol is stored in the box body, the lower half part of the cooling cylinder is immersed in the alcohol, and the drying cylinder heats the alcohol on the surface of the cooling cylinder to volatilize the alcohol and take away the heat of the cooling cylinder, so that the rice can be cooled in time, and the problem of non-uniform quality caused by untimely cooling of the dried rice in the prior art is solved.

Description

Rice processing method

Technical Field

The present invention relates to a method for producing a cereal food.

Background

The artificial rice is prepared by adding various nutrition-enhancing substances into starch raw materials, and granulating, gelatinizing, and drying by artificial method to obtain similar granule with natural rice. The production method of the rice sequentially comprises a mixing step, a granulating step, a cooking step, a drying step and a cooling step. The mixing step is that various raw materials are added with water and stirred to be mixed to prepare dough. And the granulating step is to make the dough obtained in the mixing step into rice grains through a granulator. The cooking step is to steam-treat the rice grains obtained in the granulating step to gelatinize the rice grains. The drying step is to dry the rice grains obtained in the cooking step. And the cooling step is to cool the dried rice to obtain a finished product. In the prior art, the drying and the cooling are carried out separately, and the rice obtained by drying is collected and then transported to a cooling device for cooling. Because the rice is dried the back, the temperature is higher, and at the in-process of collecting, the rice can be piled up, and the rice on rice heap top layer is big with the area of contact of air, and the heat dissipation is fast, and the rice that is located rice heap inside dispels the heat slowly, causes the heat dissipation condition inconsistent of rice, and then makes the quality of rice non-uniform.

Disclosure of Invention

The invention aims to provide a processing method of rice, and aims to solve the problem of non-uniform quality of the rice caused by untimely cooling after drying in the prior art.

The processing method of the rice in the scheme sequentially comprises a mixing step, a granulating step, a cooking step, a drying step and a cooling step, wherein the drying step and the cooling step are carried out by adopting a drying device, the drying device comprises a box body, a drying cylinder made of metal is arranged at the upper part of the box body, one end of the drying cylinder is provided with a drying feed inlet, the other end of the drying cylinder is provided with a drying discharge outlet, the drying cylinder transversely penetrates through the box body and is rotatably connected with the box body, a first spiral plate strip is fixedly arranged in the drying cylinder along the axial direction, and a heating mechanism is arranged in the drying cylinder; a cooling cylinder made of metal is arranged below the drying cylinder, the cooling cylinder and the drying cylinder are arranged in parallel, the cooling cylinder penetrates through the box body and is connected with the box body in a sealing and rotating mode, a cooling feed inlet is formed in one end of the cooling cylinder, a cooling discharge outlet is formed in the other end of the cooling cylinder, and a second spiral plate strip is fixedly arranged in the cooling cylinder along the axial direction; alcohol is stored in the box body, and the lower part of the cooling cylinder is immersed in the alcohol; the box body is provided with a material conveying pipe communicated with the drying discharge port and the cooling feed port; the drying cylinder and the cooling cylinder are connected through a gear transmission mechanism, and a motor for driving the drying cylinder to rotate is fixedly arranged on the box body; the specific drying and cooling method comprises the following steps: A. starting a motor and a heating mechanism to rotate a drying cylinder and a cooling cylinder; B. putting the cooked rice into a drying feed port of a drying cylinder, moving the rice under the action of a first spiral belt, and discharging the rice from a drying discharge port; C. and the rice discharged from the drying discharge port enters the cooling cylinder from the cooling feed port, moves under the action of the second spiral plate strip and is discharged from the cooling discharge port.

When the cooling cylinder rotates, alcohol is adsorbed on the surface of the cooling cylinder, the drying cylinder heats the alcohol on the cooling surface to volatilize the alcohol, and the heat of the cooling cylinder is taken away when the alcohol volatilizes, so that the temperature of the cooling cylinder is reduced.

Compared with the prior art, the scheme has the advantages that: 1. through set up drying cylinder and cooling cylinder simultaneously on the box to alcohol has been stored in the bottom of box, utilizes drying cylinder's heat to heat the alcohol that adsorbs on the cooling cylinder surface, makes alcohol volatilize and takes away the heat of cooling cylinder, makes the temperature of cooling cylinder reduce, thereby realizes cooling the rice, compares and additionally sets up cooling device and cools off and compare, makes cooling that the rice can be timely, thereby has improved the production efficiency of rice. 2. The volatilization of alcohol on the cooling cylinder is realized by utilizing the heat radiation of the drying cylinder, and a heating mechanism is not required to be additionally arranged, so that the energy is saved. 3. The rotation that utilizes drying cylinder and cooling cylinder realizes the removal of rice, and simultaneously, the rice also can take place the upset when removing, makes the rice can by even stoving and cooling, has guaranteed the stoving and the refrigerated effect of rice.

Furthermore, the top intercommunication of box has the condenser pipe, and the lower part of box sets firmly the collecting box with the inside intercommunication of box, condenser pipe and collecting box intercommunication. Through setting up the condenser pipe, collect the cooling with the alcohol steam that produces behind the alcohol heating to become the liquid with the condensation of alcohol steam, drop into in the collecting box, realize the recycle to alcohol.

Further, the outside cover of a stoving section of thick bamboo is equipped with the insulating tube, insulating tube and a stoving section of thick bamboo clearance fit, insulating tube and box fixed connection, the bottom of insulating tube is equipped with the bar hole relative with the cooling cylinder. Through setting up the insulating tube, keep warm to a stoving section of thick bamboo, reduce the giving off of stoving section of thick bamboo heat, and then can reduce the waste of the energy.

Furthermore, a driving gear ring is fixedly sleeved on the drying cylinder, and a driven gear ring meshed with the driving gear ring is fixedly sleeved on the cooling cylinder. Through setting up initiative ring gear and driven ring gear, make things convenient for drying cylinder and cooling drum to rotate simultaneously.

Further, the spiral directions of the first spiral plate strip and the second spiral plate strip are the same. The first spiral plate strip and the second spiral plate strip are same in rotation direction, so that the rice can move in opposite directions in the drying cylinder and the cooling cylinder under the condition that the rotation directions of the drying cylinder and the cooling cylinder are opposite, the distance between the drying discharge port of the drying cylinder and the cooling feed port of the cooling cylinder is short, and the rice is convenient to transport between the drying cylinder and the cooling cylinder.

Drawings

FIG. 1 is a schematic structural diagram of a drying apparatus in an embodiment of a rice processing method according to the present invention;

fig. 2 is a left side view of the drying apparatus of fig. 1.

Detailed Description

The present invention will be described in further detail below by way of specific embodiments:

reference numerals in the drawings of the specification include: the device comprises a driving gear ring 1, a driven gear ring 2, a motor 3, a box body 4, a drying cylinder 5, a cooling cylinder 6, a condensation pipe 7, a heat preservation pipe 8, a first spiral plate strip 9, a second spiral plate strip 10, alcohol 11 and a material conveying pipe 12.

A processing method of rice sequentially comprises the following steps,

mixing: adding water into the raw materials, stirring and mixing to prepare dough.

A granulation step: and (4) making the dough obtained in the mixing step into rice grains through a granulator.

A cooking step: and (4) performing steam treatment on the rice grains obtained in the granulating step to gelatinize the rice grains.

Drying and cooling: a drying device is adopted, as shown in figures 1 and 2, the drying device comprises a box body 4, a transverse iron cooling cylinder 6 is arranged at the lower part of the box body 4, and the cooling cylinder 6 penetrates through the box body 4 and is connected with the box body 4 in a sealing and rotating mode. The tank 4 stores alcohol 11 therein, and the lower half portion of the cooling cylinder 6 is immersed in the alcohol 11. The surface of the cooling cylinder 6 is adhered with a sponge layer with the thickness of 2mm, and the sponge layer is used for absorbing the alcohol 11, so that the surface of the cooling cylinder 6 has more alcohol 11. The cooling cylinder 6 is internally provided with a second spiral plate strip 10 extending along the axial direction, and the rotation direction of the second spiral plate strip 10 is a right spiral. The left end of the cooling cylinder 6 is provided with a cooling discharge hole, the right end of the cooling cylinder is provided with a cooling feed hole, and an annular end plate is welded at the cooling feed hole. The left end of the cooling cylinder 6 extends out of the box body 4, the driven gear ring 2 is sleeved on the left end of the cooling cylinder 6, and the driven gear ring 2 is welded with the cooling cylinder 6. A collecting hopper is arranged right below the left end of the cooling cylinder 6. A transverse iron drying cylinder 5 is arranged above the cooling cylinder 6, and the drying cylinder 5 and the cooling cylinder 6 are arranged in parallel. The drying cylinder 5 penetrates through the box body 4 and is rotatably connected with the box body 4, a drying feeding hole is formed in the left end of the drying cylinder 5, and a drying discharging hole is formed in the right end of the drying cylinder. A first spiral plate belt 9 is arranged inside the drying cylinder 5, and the rotation direction of the first spiral plate belt 9 is right spiral. The pitch of the first spiral plate belt 9 is half of that of the second spiral plate belt 10. An electric heating wire is fixedly arranged on the first spiral plate belt 9. The part of the left end of the drying cylinder 5 extending out of the box body 4 is sleeved with a driving gear ring 1, and the driving gear ring 1 is meshed with a driven gear ring 2. The left end of the drying cylinder 5 is provided with a feed hopper. The box body 4 is fixedly provided with a motor 3, and an output shaft of the motor 3 is connected with a driving gear meshed with the driving gear ring 1 through a flat key. The part of the drying cylinder 5, which is positioned inside the box body 4, is sleeved with a heat preservation pipe 8, and the heat preservation pipe 8 and the drying cylinder 5 are coaxially arranged and in clearance fit. The bottom of insulating tube 8 is equipped with the bar hole just to cooling cylinder 6, and the length direction in bar hole is parallel with the axial of insulating tube 8. The drying cylinder 5 transfers heat radiation to the cooling cylinder 6 through the strip-shaped holes, so that alcohol 11 on the surface of the cooling cylinder 6 is heated. The pipe wall of the heat preservation pipe 8 is internally provided with a cavity which is filled with heat preservation cotton. A material conveying pipe 12 is arranged right below the right end of the drying cylinder 5, a feeding hole of the material conveying pipe 12 is opposite to a drying discharging hole, and a discharging hole of the material conveying pipe 12 is opposite to a cooling feeding hole. The top of the box 4 is connected with a condensation pipe 7. The lower part of the box body 4 is connected with a collecting box communicated with the inside of the box body 4. The liquid outlet end of the condensing pipe 7 is positioned right above the collecting box; the specific drying and cooling method comprises the following steps: A. starting the motor 3 and the heating mechanism to rotate the drying drum 5 and the cooling drum 6; B. putting the cooked rice into a drying feed inlet of a drying cylinder 5, moving the rice under the action of a first spiral belt, and discharging the rice from a drying discharge outlet; C. the rice discharged from the drying discharge port enters the cooling cylinder 6 from the cooling feed port, moves under the action of the second spiral plate belt 10, and is discharged from the cooling discharge port.

Claims

1. A processing method of rice sequentially comprises a mixing step, a granulating step, a cooking step, a drying step and a cooling step, and is characterized in that: the drying step and the cooling step are carried out by adopting a drying device, the drying device comprises a box body, the upper part of the box body is provided with a drying cylinder made of metal, one end of the drying cylinder is provided with a drying feed inlet, the other end of the drying cylinder is provided with a drying discharge outlet, the drying cylinder transversely penetrates through the box body and is rotatably connected with the box body, a first spiral plate strip is fixedly arranged in the drying cylinder along the axial direction, and a heating mechanism is arranged in the drying cylinder; a cooling cylinder made of metal is arranged below the drying cylinder, the cooling cylinder and the drying cylinder are arranged in parallel, the cooling cylinder penetrates through the box body and is connected with the box body in a sealing and rotating mode, a cooling feed inlet is formed in one end of the cooling cylinder, a cooling discharge outlet is formed in the other end of the cooling cylinder, and a second spiral plate strip is fixedly arranged in the cooling cylinder along the axial direction; alcohol is stored in the box body, and the lower part of the cooling cylinder is immersed in the alcohol; the box body is provided with a material conveying pipe communicated with the drying discharge port and the cooling feed port; the drying cylinder and the cooling cylinder are connected through a gear transmission mechanism, and a motor for driving the drying cylinder to rotate is fixedly arranged on the box body; the specific drying and cooling method comprises the following steps: A. starting a motor and a heating mechanism to rotate a drying cylinder and a cooling cylinder; B. putting the cooked rice into a drying feed port of a drying cylinder, moving the rice under the action of a first spiral belt, and discharging the rice from a drying discharge port; C. the rice discharged from the drying discharge port enters the cooling cylinder from the cooling feed port, moves under the action of the second spiral plate strip and is discharged from the cooling discharge port, the outer side of the drying cylinder is sleeved with a heat preservation pipe, the heat preservation pipe is in clearance fit with the drying cylinder, the heat preservation pipe is fixedly connected with the box body, and the bottom of the heat preservation pipe is provided with a strip-shaped hole opposite to the cooling cylinder.

2. The processing method of rice according to claim 1, wherein: the top intercommunication of box has the condenser pipe, and the lower part of box sets firmly the collecting box with the inside intercommunication of box, condenser pipe and collecting box intercommunication.

3. The processing method of rice according to claim 2, characterized in that: the drying cylinder is fixedly sleeved with a driving gear ring, and the cooling cylinder is fixedly sleeved with a driven gear ring meshed with the driving gear ring.

4. The processing method of rice according to claim 3, wherein: the spiral directions of the first spiral plate strip and the second spiral plate strip are the same.