KR101621508B1 - Apparatus for roasting corn used hot-air and thereof method - Google Patents

Abstract

The first door 32 is opened when the power is turned on so that a predetermined amount of grain is fed into the grain processing unit 40 from the grain feeding unit 30 and the heater 11 is rotated, The second door 43 is opened to allow the heated heat to be sent to the grain processing section 40 through the blower 21 for a preset time period while the grain processing section 40 The grain is floated upward along the hemispherical inner circumferential surface of the lower end portion and is moved downward along the outer circumferential surface of the hot air supply pipe 42 so that the grain is subjected to hot air processing while being repeatedly moved for a set time, When the grain is processed, the second door 43 is closed and the third door 44 at the lower end of the grain processing unit 40 is opened for a predetermined period of time by supplying the circulating material to the heating unit 10 through the heating unit 50, The grain processed by the grain And is recovered to the recovery unit 60 so that the processed grains can be continuously produced in an optimal state.

Description

[0001] The present invention relates to an apparatus and method for roasting cereals using hot air,

More particularly, the present invention relates to an apparatus and method for roasting cereals using hot air, and more particularly, to a method and apparatus for roasting cereals, The present invention relates to a device and method for roasting cereals using hot air, which enables the discharged residues to be recovered by their own weight and at the same time reuses hot air.

In general, grains such as rice, beans, and coffee beans are roasted to make their flavor and aroma evolve to be edible, and are then used for various purposes by changing into suitable sized particles.

In the past, the pot was fried in a manner that artificially stirs grains by directly heating the pot using a pot, especially a pot, such as a pot, but in this way, a small amount of grain can be roasted, And loss of manpower, and there is a limitation that the flavor and taste are unstable.

In addition, depending on the type of roasted grain, the roasted amount, time, and thermal power must be set differently, but there is a problem in that it is necessary to rely only on special people to roast the grains continuously under such conditions.

The recent increase in the kinds and amounts of roasted grains is due to the well-being of whole grains and sunshine. Some of them are roasted or roasted directly at home, but they are not useful either in terms of time or cost. This is the main reason for the increase in demand.

In order to meet the rapidly increasing demand, various apparatuses for roasting the grain have been proposed, but most of them are constructed by stirring the roots in a certain amount while automatically stirring the grains.

However, when the grain is roasted directly by applying heat, the shell is already burned in the process of frying until the inner part is ripe from the part of the shell which receives the firepower first. Even if the inside is not peeled, There is also a closed loop.

In addition, in the method of directly firing the grain by heating the container, it is difficult not only to continuously work but also to manually sort the residues such as dust generated during the roasting process.

Recently, a technique of roasting grains using hot air through a registered patent No. 0968771 (name: Grain roasting machine) was proposed.

In the prior art, the grains to be fed to the roasting portion from the upper portion are distributed by the hot wind discharged from the lower end portion at the center of the roasting portion, the hot wind discharged from the roasting portion is passed through the cyclone tube, The hot air is supplied again to the hot air blower and heated by the hot air heater to continuously supply the hot air to the hot air blower.

At this time, the roasted grains in the roasted portion are poured into the grain collection funnel by the operation of the grain support withdrawing means and gathered in the cooling trough 173.

However, in the prior art, since the hot air supplied to the roasted portion by the hot air blower is supplied without being sufficiently heated by the hot air heater portion, not only the roasting at high temperature is not possible but also the supply pressure of hot air is changed according to the amount and size of the grain supplied to the roasted portion There is a closure that allows the grain to pass to the cyclone tube along with the hot wind.

Particularly, in the roasting part of the prior art, it is not possible to grasp relatively large grains such as soy beans because it can be roasted only by the low-temperature hot wind which can withstand the drums by the transparent material drums. There is an uneconomical problem in that the production efficiency is lowered due to excessive delay of the frying time.

Registration No. 0968771 (2010.07.01.)

Accordingly, the present invention has been made to solve the problems of the prior art, and it is an object of the present invention to provide a method for heating a waste heat recovered together with outside air so that the waste heat can be sufficiently heated again and then roasted at a high temperature for a short time, The present invention relates to a roasting apparatus and method using hot air.

In addition, the present invention enables the supply of grain, the supply of hot air, and the discharge of fried grains to be automatically and continuously performed at regular intervals

According to another aspect of the present invention, there is provided a roasting apparatus for roasting a grain by hot air, comprising: a heating unit for heating the roasted heat to a predetermined temperature by introducing the outside air into the roasting unit at a predetermined rate; A blowing unit for blowing the heat forcedly drawn from the heating unit at a constant pressure; A grain supply unit for supplying a predetermined amount of grain fed from the upper part by an opening and closing operation of the first door; When a certain amount of grain is supplied through the grain supplying unit, the second door is opened for a predetermined time, hot air is introduced from the air-blowing unit to raise the grain to a certain height and roasted. A grain processing part made up of a double tube filled with a heat insulating material so as to be discharged; A dust collecting part consisting of a double tube filled with a heat insulating material so that waste heat is introduced into a space having an inner diameter that is larger than an inner diameter of the waste heat transfer tube so that the grain powder flowing down together is dropped down by its own weight and only pure waste heat is supplied to the heating part; Wherein the grain processed by the grain processing unit is temporarily stored until the third door is opened and discharged downward and is transferred to the cooling unit by vacuum negative pressure; And a control section for controlling and setting the temperature of the hot air, the processing time in the grain processing section, and the opening and closing of the first, second and third doors.

The method for roasting a grain using the hot air of the present invention through the above-described roasting apparatus comprises the steps of opening a first door when a power source is turned on to allow a certain amount of grain to be fed into a grain processing section from a grain supply section: Heating to a temperature; Opening the second door and sending the heat heated to the temperature set by the heater to the grain processing section through the blower for a set time: upwards along the hemispherical inner peripheral surface in the grain processing section; downward movement on the outer circumference of the hot air supply tube The grain is hot-winded while the grain is repeatedly moved for a preset time; Closing the second door when the grain is processed by supplying hot air for a set time; If the second door is closed, opening the third door at the lower end of the grain processing section for a predetermined time to recover the grain processed by the hot wind to the grain collection section; When the third door is closed, the grain recovered by the vacuum negative pressure is transferred to the cooling section, so that the grain is roasted.

According to the present invention according to the above configuration

1 is a perspective view illustrating a roasting apparatus using hot air according to the present invention;
Fig. 2 is a plan view of Fig. 1
FIG. 3 is a schematic view illustrating a structure of a roasting apparatus using hot air according to the present invention, in which ambient air is introduced into a chamber of a heating unit together with waste heat,
FIG. 4 is an enlarged cross-sectional view illustrating a connection structure between a rotary shaft and a bearing shaft of a blowing unit in a roasting apparatus using hot air according to the present invention
5 is a view showing the internal structure of the grain processing portion of the roasting apparatus using hot air according to the present invention
6 is a side cross-sectional view illustrating a coupling structure of a third door in a roasting apparatus using hot air according to the present invention.
Fig. 7 is an operational structural view illustrating a process of roasting a grain by flow of hot air in a grain processing section of a roasting apparatus using hot air according to the present invention

Hereinafter, preferred embodiments of a roasting apparatus using hot air according to the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view illustrating a roasting apparatus using hot air according to the present invention, and FIG. 2 is a plan view of FIG. 1.

As shown in the drawing, the roasting apparatus using hot air according to the present invention includes a heating unit 10, a blowing unit 20, a grain feeding unit 30, a grain processing unit 40, a dust collecting unit 50 and a grain collecting unit 60, And a control unit 70, as shown in Fig.

In the present invention, the heating unit 10 is configured such that the air introduced by the heater 11 is heated to a predetermined temperature while allowing the outside air to be introduced by a predetermined amount together with waste heat circulated from the upper part.

At this time, the chamber 12 of the heating unit 10 is formed so as to be vertically larger than the outer diameter of the waste heat recovering pipe 53 from which the waste heat is recovered, as shown in FIG. 3, thereby forming the outside air inlet 13.

In particular, the heater 11 of the present invention preferably uses a heat source as a gas so as to prevent the generation of unburned gas and to maintain a more stable thermal power.

The heat heated by the heater 11 along with the introduction of the waste heat into the heating portion 10 and the outside air is caused to flow by the suction force of the blowing portion 20 and the suction force at this time is transmitted to the blowing portion 20 Because it is much smaller than wind power, it transfers sufficiently heated heat by more powerful wind power.

Since the blowing unit 20 is formed as an outlet side through which the heat of the heating unit 10 is discharged, the blower 21 provided in the blowing unit 20 is directly affected by heat.

It is preferable that the driving motor 22 provided to drive the blower 21 is disposed at a position spaced apart from the blower 21. The rotational axis 210 of the blower 21 and the driving motor 22, The bearing shafts 23 of a certain length are connected to the driving shaft 220 of the driving motor 22 so that the driving shafts 220 of the driving shaft 22 are separated from each other.

The bearing shaft 23 is rotatably supported by a bearing hub 24 whose both ends are fixed to the equipment frame (non-base material), so that accurate driving force transmission can be stably performed.

The rotary shaft 210 of the blower 21 may be connected to the bearing shaft 23 such that the rotary shaft 210 and the bearing shaft 23 are simply coupled to each other by flange coupling. The heat in the heating unit 10 can affect the driving motor 22 through the bearing shaft 23. [

FIG. 4 is an enlarged cross-sectional view illustrating a connection structure between a rotary shaft and a bearing shaft of a blowing unit in a roasting apparatus using hot air according to the present invention.

The ends of the rotating shaft 210 influenced by the heating of the heating unit 10 and the ends of the bearing shaft 23 provided opposite to the rotating shaft 210 are respectively connected to the outer shaft 210 and the bearing shaft 23, (25) formed by a circular plate having a diameter larger than the outer diameter of the wheel (23) are respectively coupled to the wheel (25), and a plurality of And the gap holding pins 250 are connected by welding.

In this way, hot air heated by a certain pressure is transmitted through the blower 21 to generate hot air.

The grain processed by this hot wind together with the hot wind is supplied through the grain supply part 30. [

The grain feeding part 30 of the present invention is constituted by a hopper 31 for receiving a certain amount of grain and a first door 32 provided at a lower end of the hopper 31 to supply a certain amount of grain.

The hopper 31 is positioned on the upper part of the facility so that a large amount of grain can be filled, and the grain is stably introduced to the discharge port side of the lower end through the hopper 31.

The discharge port 310 of the hopper 31 is formed downward at a predetermined diameter and a height and the first door 32 opens and closes the discharge port 310 at the lower end of the discharge port 310.

The first door 32 has a structure in which the supply amount of the grain is adjusted according to the time for opening the discharge port 310. It is preferable that the first door 32 is provided so as to be opened and closed while sliding the discharge port 310 horizontally desirable.

The hot air sent through the blowing section 20 and the grain fed through the grain feeding section 30 are subjected to hot air processing in the grain processing section 40.

The main body 41 of the grain processing unit 40 is formed in such a shape that its diameter is gradually reduced from a predetermined height to a lower side and the main body 41 is supplied with hot wind from one side of the upper portion thereof, And the grain is supplied from the upper end portion.

The main body 41 of the grain processing unit 40 is constructed of a double tube which is filled with a heat insulating material so that the heat can be conducted even by hot hot air.

5 is an internal structural view of a grain processing unit of a roasting apparatus using hot air according to the present invention.

The hot air supply pipe 42 for supplying hot air to the grain processing unit 40 has one end connected to the blowing unit 20 and inserted through one side of the outer circumferential surface of the upper part and the insertion end is vertically disposed inside the main body 41 So that the lower end portion is formed at a lower height than the lower end portion of the main body 41 along the center of the inner diameter.

The grain fed to the grain processing unit 40 is dropped from the upper end of the main body 41 to the lower end through the first door 32.

The first door 32 may be formed on the upper surface of the grain processing unit 40 and the upper surface of the first door 32 may be formed on the upper surface of the grain processing unit 40. [ The upper end portion may have a funnel-shaped guide means having an inner diameter larger than the diameter of the discharge port 310 of the grain supply portion 30 and a lower end portion having an inner diameter smaller than the discharge port 310. [

That is, if the diameter of the passage of the grain in the first door 32 is reduced, the grain measurement by the first door 32 can be more accurate.

Hot air is introduced from the blowing portion 20 by opening the second door 43 through the hot air supply pipe 42 inserted into the upper portion of the main body 41 together with the supply of the grain.

A third door 44 is provided at the lower end of the main body 41 to open and close the downwardly opened end of the main body 41.

At this time, the hot air supply pipe 42 is horizontally inserted from the side through the upper side of the upper part of the main body 41 such that the diameter of the hot air supply pipe 42 is larger than the lower part. The inserted horizontal end is bent vertically downward at the center of the inner diameter of the main body 41 So that the lower end portion is located at a lower portion apart from a lower end portion of the main body body 41 by a certain gap.

6, the third door 44, which is configured to open and close the lower end of the body body 41, is spaced apart from the lower end of the hot air supply pipe 42 by a certain distance from the outer peripheral surface of the body body 41, So as to be spaced apart from each other.

It is preferable that the lower end of the main body 41 to which the third door 44 is coupled is formed in a hemispherical shape together with the third door 44.

On the other hand, a waste heat outlet 45 is formed in the upper part of the main body 41 to discharge hot air to the upper side of the hot air supply pipe 42.

The waste heat discharged through the grain processing section 40 for heating the grain by hot air flows through the waste heat transfer tube 52 to the adjacent dust collecting section 50.

The dust collecting part 50 has a height which is larger than an inner diameter of the waste heat transfer tube 52 and has a predetermined height from the lower end of the upper part to a diameter The dust collecting body 51 is formed in such a shape that the outer circumferential surface is inclined downward.

The lower end portion of the dust collecting body 51, which is inclined, extends downward at a predetermined height with the same diameter so that dust such as grain powder falling down due to its own weight in the dust collecting body 51 is collected.

The waste heat recovering pipe 53 for re-supplying the waste heat introduced into the dust collecting body 51 to the heating unit 10 so as not to be lower than the height at which the waste heat transfer tube 51 of the dust collecting body 51 is connected To be connected to the outer circumferential surface.

The structure of the dust collecting part 50 is similar to that of the prior art cyclone tube and the dust collecting body 51 of the dust collecting part 50 is made of a hot air of high temperature in the same manner as the body body 41 of the grain processing part 40 And a double pipe structure in which a heat insulating material is embedded so that the heat insulation is performed.

The roasted grains discharged from the grain processing unit 40 by the opening of the third door 33 are collected down to the grain collecting unit 60 and are discharged to the vacuum negative pressure at the time when the third door 33 is closed To the cooling section.

Therefore, the lower part of the funnel-shaped grain collecting part 60 is connected to the cooling part by the vacuum pipe 61, and the lower part of the funnel- .

Each constitution of the present invention as described above is automatically and continuously operated by the time set in the controller 70, the grain supply amount, and various setting control values.

That is, in the control box 71 of the control unit 70, the temperature of the hot air, the processing time in the grain processing unit 40, and the supply amount of the grain are set in advance, So that the first door 32, the second door 43, and the third door 44 can be operated at a predetermined time.

Meanwhile, in the present invention, the first door 32, the second door 43, and the third door 44 are operated to open and close by cylinder drive.

In the figure, reference numeral 46 denotes an inspection port for inspecting the interior of the grain processing section 40, reference numeral 47 denotes an inspection port for inspecting the inside of the grain processing section 40, .

Hereinafter, the operation of the present invention will be described in more detail.

When the main power is applied, the first door 32 is opened for a predetermined time through the grain supply part 30 so that a certain amount of grain is supplied to the main body 41 of the grain processing part 40, do.

The heater 11 is operated to heat the air introduced into the chamber 12 to a set temperature and when the heated air in the heating unit 10 reaches a set temperature, So that the blower 21 of the blower 20 is operated.

The second door 43 provided in the hot air supply pipe 42 connected between the blowing unit 20 and the grain processing unit 40 during the operation of the blower 21 is opened for a predetermined time and is blown through the blower 21 And the heated hot air is supplied into the grain processing unit 40 through the hot air supply pipe 42.

The grain in the grain processing unit 40 is separated from the lower end of the hot air supply pipe 42 by the hot air and the upper surface of the third door 44 so as to be curved downward, The grains are raised together by the wind force of the hot air rising along the inner circumferential surface, and circulated to the outer circumferential surface side of the hot air supply pipe 42 as shown in Fig.

When the grain is heated by the hot air for a certain period of time, the inside and outside of the grain are uniformly ripened by the heat. The heat that has passed through the grain moves to the upper part of the main body 41 of the grain processing section 40, To the waste heat transfer tube (52).

When the grain is ripened by the hot wind in the grain processing unit 40, the second door 43 is operated at a predetermined time to stop the supply of hot air through the hot air supply pipe 42, and then the third door 44 is opened So that the grains in the grain processing section (40) fall to the grain collection section (60) by their own weight.

When the grain falls, the third door 44 is immediately closed, and the first door 32 is opened again so that a certain amount of grain is supplied to the grain processing section 40.

The processed grain collected in the grain collecting section 60 is conveyed to the cooling section (not shown) through the vacuum pipe 61 by the vacuum negative pressure in the state where the third door 44 is closed.

Therefore, according to the present invention, immediately after the supply of the grain by the first door 32, the first door 32 is closed and the second door 43 is opened for a predetermined time to supply hot air. The third door 44 is closed and the hot air-processed grain is recovered to the grain collecting part 60, so that the grain processing can be continuously performed.

In order to enable such a continuous process, the grains must be stably supplied to the hopper 31 of the grain feeder 30 and the gas used as the heat source in the heater 11 must be stably supplied.

If only these process conditions are maintained, the grain can be continuously processed to an appropriate degree, which can provide higher productivity than the previous one, while at the same time allowing the grain to be adequately ripened without substantially deforming the outer surface of the grain, Make it possible to obtain thick processed grains.

On the other hand, the hot air after the grain processing in the grain processing unit 40 flows into the dust collecting body 51 of the dust collecting unit 50 through the waste heat transfer port 45 through the waste heat transfer tube 52.

Fine dusts such as grain shells that flow into the dust collecting body 51 together with the waste heat are suddenly introduced into the expanded space as compared with the waste heat transfer tube 52, and fall down due to their own weight.

The falling fine particles are temporarily collected by a collection means such as a dust collecting bag connected to the bottom of the dust collection body 51.

The waste heat from which the dusts have been removed is discharged through the waste heat recovery pipe 53 extending to the chamber 12 side of the heating unit 10 through the upper portion of the dust collecting unit 50 to be supplied to the chamber 12 again.

However, in the chamber 12, the waste heat recovering pipe 53 is inserted into the waste heat recovering pipe 53, and the outside air is introduced into the waste heat recovering pipe 53 through the outside air inlet 13 so as to be larger than the outer diameter of the waste heat recovering pipe 53. Make sure the amount of air is replenished.

As described above, the present invention has an effect that the grain can be optimally processed by blowing air while blowing the heat formed at a predetermined temperature through the blower 21 to a predetermined pressure.

In addition to the grain processing capability, the present invention is configured such that the main body 41 of the grain processing unit 40 and the dust collecting body 51 of the dust collecting unit 50 are formed into a double pipe structure in which a heat insulating material is inserted So that the work environment can be made operable even in the process of high temperature hot air, and at the same time, the deformation of the facility can be prevented.

In addition, since the heat transfer through the connection shaft with the drive motor 22 can be completely blocked while keeping the drive motor 22 at a maximum distance from the blower 21, advantages such as durability and stable operation of the facility can be obtained .

10: Heating part 11: Heater
12: chamber 13: outside air inlet
20: a blower 21: a blower
22: drive motor 23: bearing shaft
25: Wheel 30: Grain supplier
31: hopper 32: first door
40: grain processing section 41: body body
42: hot air supply pipe 43: second door
44: third door 50: dust collecting part
51: dust collecting body 52: waste heat flow tube
53: waste heat recovery pipe 60: grain recovery unit
70:

Claims (7)

In a grain roasting apparatus using hot air to roast a grain by hot air,
A heating unit for generating heat at a predetermined temperature by being heated by a heater in a chamber for introducing outside air together with waste heat through an outside air inlet having a larger diameter than the waste heat recovering pipe from the upper part together with the waste heat recovering pipe from the upper part;
A blower for sucking the heated air from the heating unit to be discharged at a predetermined pressure, and a drive motor for driving the blower while keeping a predetermined distance from the blower by connecting bearing shafts on the same axis so as not to transfer heat from the blower Wherein a wheel having a circular flat plate is coupled to an end portion of the rotary shaft of the blower and the bearing shaft is opposed to each other, while both wheels facing each other are fixed by a plurality of gap holding pins welded along the outer peripheral edge, A blowing part connected to each other by a gap to send the heat forcedly drawn from the heating part at a constant pressure;
A grain supply unit for supplying a predetermined amount of grain fed from the upper hopper by a slide opening / closing operation of the first door;
A main body which is a structure of a double pipe which is gradually reduced in diameter from a predetermined height to fill the inside with a heat insulating material so as to be adiabated by hot air at a high temperature and is horizontally inserted through an outer peripheral surface of one side of the upper surface of the main body, A hot air supply pipe connected at one end to the blowing portion and bent at a lower end vertically downward within the body body so as to form a lower end portion at a lower height than the lower end portion of the body body along the center of the inner diameter, A second door configured to intermittently flow hot air supplied through the hot air supply pipe to the inside of the main body for a predetermined period of time and a hemispherical shape coupled with a lower end of the main body to be downward curved, The lower end portion of the hot air supply pipe provided at the lower portion A third door which is opened and closed at a lower end of the main body so as to be spaced apart from the main body so as to discharge the processed grains downwardly and a third door connected to one side of the upper portion of the inside of the main body, A grain processing section as a waste heat outlet for discharging waste heat to be discharged;
A dust collecting part consisting of a double tube filled with a heat insulating material so that waste heat is introduced into a space having an inner diameter that is larger than an inner diameter of the waste heat transfer tube so that the grain powder flowing down together is dropped down by its own weight and only pure waste heat is supplied to the heating part;
Wherein the grain processed by the grain processing unit is temporarily stored until the third door is opened and discharged downward and is transferred to the cooling unit by vacuum negative pressure;
A control unit for controlling and setting the temperature of the hot air, the processing time in the grain processing unit, and opening and closing of the first, second and third doors;
Wherein the roasting device is configured to feed the roasted rice to the cereal roasting device. delete delete delete delete delete delete

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