JPH0998766A - Manufacturing equipment for special malt and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide equipment and a process for manufacturing a special malt, which can efficiently produce special malt by automation in no need of excessive manual assistance. SOLUTION: In the process for manufacturing a special malt where hot air from the heat source is blown to the malt feedstock in the roaster which is rotated by a rotating means, the temperature of the malt feedstock in the roaster is detected by the temperature sensors 25, 26 and the hot air from the heat source is controlled by the controller equipped with the temperature- controlling program previously set for the malt feedstock based on the detection results as well as the water-spraying to the malt feedstock in the roaster by the sprayer 27 is controlled.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing special malt, and more particularly, to a method for efficiently producing colored malt by controlling the drying treatment of the malt raw material using automatic control. Regarding the method.

[0002]

2. Description of the Related Art In the production of beer, in addition to the light-colored malt used for ordinary light-colored beer and the dark-colored malt used for dark-colored beer, various malt types are used depending on the type of beer to be manufactured. These are collectively called special malt. These special malts are mainly used for imparting a characteristic color and aroma to beer, but also contribute to beer's thickness, foam retention and stability.

In general, special malt is roasted at a high temperature, so that its enzymatic activity is destroyed. Further, when the special malt is used alone or in a large amount, the color of the beer produced and its unique flavor become too strong. For this reason, special malt is generally used by adding it to normal malt.
The addition of special malt makes it possible to produce a wide variety of beers depending on the type and the amount used.

Among the special malts, colored malt is used for the production of dark beer. This is because when a malt raw material is roasted, a proteolytic substance such as an amino acid reacts with sugar to form a coloring substance melanoidin, which is involved to form dark beer. In order to produce such colored malt,
The roasted (dried and roasted) malt raw material or the malt raw material with a moisture content of 7-8% in the roast is put in a rotary roaster to gradually raise the temperature to 200-230 ° C in 2-4 hours. By reaching and drying, it was colored blackish brown.

[0005]

However, in the above-described conventional method for producing colored malt, all the work is performed manually. Moreover, since the worker has to constantly monitor the manufacturing process to perform the work, he is forced to perform the troublesome work such as checking the temperature and working time, operating and adjusting the machine.

The present invention has been made to solve the above-mentioned problems, and by automating the production of special malt, it is possible to efficiently produce special malt without undue labor and labor. An object of the present invention is to provide an apparatus for producing special malt and a method for producing special malt.

[0007]

Means for Solving the Problems The present invention solves the above-mentioned problems by constantly monitoring the temperature of the malt itself to be treated with a sensor, and setting a temperature value corresponding to a predetermined elapsed time. Colored malt is produced by comparing the malt temperatures detected by the sensors and controlling the combustion temperature of the burner, which is a heat source, so as to approximate the set temperature.

That is, the apparatus for producing special malt of the present invention is for storing the malt raw material and performing the roasting treatment, the rotating means for rotating the roasting portion, and the blowing of hot air to the roasting portion. Heat source, a circulation path for circulating the hot air blown from the heat source to the roasting unit to the heat source, a temperature sensor for measuring the temperature in the roasting unit, a sprinkling means for sprinkling malt in the roasting unit, and a predetermined Equipped with a temperature control program for roasting malt, controlling the temperature and amount of hot air supplied by the heat source based on the signal from the temperature sensor, and the temperature of the malt raw material during the roasting process exceeds a specified value. Then, the sprinkling means is controlled to operate.

Further, the method for producing a special malt of the present invention is a method for producing a special malt in which the malt raw material is roasted by blowing hot air from a heat source to the malt raw material stored in the roasting section rotated by the rotating means. In the method, the temperature of the malt raw material in the roasting section is detected by a temperature sensor, and the hot air from the heat source is detected based on the temperature detection result by the control section having a predetermined temperature control program for malt roasting. And controlling the watering by the watering means to the malt raw material in the roasting section.

In the above-mentioned method for producing special malt, the temperature of the malt raw material in the roasting section is detected by a temperature sensor, and the temperature is detected by a control section having a predetermined temperature control program for roasting malt. The hot air from the heat source is controlled based on the result, and the watering by the watering means to the malt raw material in the roasting section is controlled. For this reason, it becomes possible to efficiently manufacture the special malt without undue labor of the operator. Moreover, since it is possible to control the temperature ideally throughout the entire production process of the special malt, it is possible to manufacture the special malt with the desired color and aroma in a short time.

Further, by circulating hot air to roast the malt raw material, the energy of the hot air can be used without waste, and the energy saving of the manufacturing method can be achieved.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a system diagram of an apparatus for producing special malt according to the present invention. In FIG. 1, a special malt manufacturing apparatus 10 includes a roasting device 20 for roasting a malt raw material, a hot air generating device 30 for generating hot air for roasting a malt raw material, and a malt to the roasting device 20. A connecting portion 40 for introducing the raw material and guiding the hot air roasted the malt raw material to the exhaust passage 50, a circulation portion 63 for circulating the hot air in the exhaust passage 50 to the hot air generating portion 30, and cooling the roasted malt raw material. It is provided with a cooling tank 60 and a control unit 70 (not shown in FIG. 1) for controlling the special malt manufacturing apparatus.

The roasting device 20 includes a rotary drum 21 in which a malt raw material to be roasted is accommodated, a drum motor 22 for rotating the rotary drum 21, and a rotation of the drum motor 22 for supporting the rotary drum 21. The rotating drum 21
And a rotary shaft 23 that transmits the Rotating drum 21
Is provided in the case 24. In this case, an inlet 24a for introducing the hot air generated by the hot air generator 30 into the case 24, and for discharging the roasted malt raw material to the outside of the apparatus. Discharge gate 24b is formed. The net portion 2 is provided at the end of the rotary drum 21 on the side of the inlet 24a.
1a is provided, and the hot air introduced into the case 24 is introduced into the rotary drum 21. The other end of the rotary drum 21 is open,
This open end serves as an inlet when the malt raw material is charged into the rotary drum 21, and serves as an outlet for the hot air introduced into the rotary drum 21 during roasting.

In the case 24 and the rotary drum 21 of the roasting device 20, temperature sensors 25 and 26 are provided. The temperature sensor 25 provided in the case 24 detects the temperature in the case 24, and the temperature sensor 26 provided in the rotary drum 21 detects the temperature in the rotary drum 21.
The rotating drum 21 is provided with a sprinkler 27 for spraying water into the rotating drum 21. This sprinkler 2
No. 7 prevents the malt raw material from burning by sprinkling water on the malt raw material in the rotary drum 21 to lower the temperature when the temperature inside the rotary drum 21 exceeds a predetermined value.

The hot air generator 30 is in the same housing 35 as the roasting device 20, and includes a burner 31 and a burner 3.
Burner fan 3 for blowing the heat generated by 1.
2 are provided. The housing 35 cools the hot air generated by the burner 31 and the burner fan 32 to the roaster 20.
Acts as a hot air duct for sending to.

The connecting portion 40 has a rotary drum 2 at one end thereof.
1 is connected to the other side, and the other end side is the housing 35.
And protrudes to the outside and branches into an upper end 40a and a side end 40b. A hopper 42 for accommodating the malt raw material to be roasted is provided at the upper end 40a of the connecting portion 40. At the lower part of the hopper 42, a hopper outlet 42a is provided with a charging gate 44 for opening and closing the hopper outlet 42a. By opening the charging gate 44, the malt raw material stored in the hopper 42 is charged into the rotary drum 21 of the roasting device 20 through the connecting portion 40. An outlet damper 46 is provided at the side end 40b of the connecting portion 40, and is configured to open and close the side end 40b.

The circulation unit 50 has one end connected to the side end 40b of the connecting unit 40 and the other end connected to the connection port 34 near the burner 31 of the hot air generator 30. This makes it possible to circulate the hot air guided from the roasting device 20 to the connecting portion 40 to the hot air generating portion 30 and effectively use the energy. An introduction control damper 51 is provided on the upstream side of the circulation unit 50 in the blowing direction.
Open and close the upstream side of the blast direction. In addition, the introduction control damper 5
An exhaust fan 52 is provided on the downstream side in the blowing direction of 1 to urge the hot air flow in the circulation unit 50 to facilitate circulation of the hot air. Further, a rotary valve 53 whose opening degree is adjustable is provided on the downstream side of the exhaust fan 52 in the blowing direction, and the rotary valve 53 controls the circulation of the hot air flow.
In addition, the circulation unit 5 is provided between the exhaust fan 52 and the rotary valve 53.
Temperature sensor 54 for detecting the temperature of hot air at 0
Is provided.

The cooling tank 60 is the case 24 of the roasting device 20.
It is provided on the outer side of the discharge gate 24b formed in. This cooling tank 60 is provided with a cooling fan 62, and blows cold air to the malt raw material discharged to the cooling tank 60, thereby efficiently cooling the freshly roasted malt raw material.

Further, the special malt production apparatus 1 according to the present invention
0 is equipped with a control system 70 (not shown in FIG. 1) as shown in FIG.
Has a CPU 72. The temperature sensors 25, 26, and 54 are connected to the input end of the CPU 72, and the output end thereof includes the sprinkler 27, the exhaust fan 52, and the cooling fan 6.
2, a material input gate 44, a drum controller that controls the drum motor 22, a burner 31, and a burner fan 3
Burner controller for controlling 2 and introduction control damper 5
It is connected to the introduction control damper controller for controlling the first control and the drum outlet damper controller for controlling the drum outlet damper 46. Then, the CPU 72 compares the preset set temperature with the temperatures detected by the temperature sensors 25, 26, 54, and the CPU 7 approximates the set temperature.
Controls each of the above components connected to the two output terminals.

Next, a method for producing special malt using the above-mentioned special malt producing apparatus 10 will be described with reference to FIG. FIG. 3 is a time chart showing the operating state of each component of the apparatus for producing special malt according to the present invention. The method for producing special malt according to the present invention is roughly classified into (1) warm-up step (initial setting step), (2) uniform drying step, and (3) aroma / coloring step.

In the warm-up process, the rotary drum 21
In the state where the malt raw material is not charged, the burner 31 and the burner fan 32 blow hot air into the roasting device 20 including the rotary drum 21 by rotating the malt raw material at a predetermined temperature. Warm up as much as possible. In the uniform drying process, malt whose roasting rate has been finished to 4-5% is put into the rotary drum 21 from the hopper 42, and the rotary drum 21 is driven at the second predetermined speed higher than the speed in the warm-up process. While rotating, the temperature of the hot air to be blown is gently raised to dry the malt raw material. In this uniform drying step, the temperature of the malt raw material changes as shown in FIG. That is, the temperature is almost constant at the beginning, but rises as the temperature of the hot air rises after a lapse of a predetermined time. When the temperature of the entire malt raw material rises to a certain degree, thereafter, the temperature rises gently in proportion to the temperature rise of the hot air.
In this uniform drying step, the malt raw material temperature is kept at a predetermined temperature (for example, 200-23 for a predetermined time (for example, about 2 hours)).
The temperature is controlled to reach 0 ° C.

In the scent / coloring step, since the roasted malt raw material is given a scent and color, this temperature is maintained after the temperature of the malt raw material reaches a predetermined temperature (for example, 210 ° C.). While roasting for a predetermined time (for example, about 1 hour). In this step, since the temperature is close to the burning temperature of the malt raw material, when the temperature exceeds a predetermined temperature, the sprinkling device 27 sprays water on the malt raw material to control the temperature so as not to reach the burning temperature. Be seen.

The hot air passing through the rotary drum 21 is connected to the connecting portion 4
0, and is sent to the circulation unit 50 via the drum outlet damper 46. The hot air sent to the circulation unit 50 passes through the introduction control damper 51, is urged by the exhaust fan 52, and is controlled by the rotary valve 53 capable of adjusting the opening degree in the vicinity of the burner 31 of the hot air generator 30. It is circulated to the connection port 34. Thereby, the generated hot air can be effectively reused. Further, part of the hot air that has passed through the rotary valve 53 may be discharged to the outside. In the above process, the exhaust fan 52, the cooling fan 62, the raw material charging gate 44, the drum motor 2
2, burner 31, burner fan 32, introduction control damper 5
As shown in FIG. 2, the CPU 1 and the drum outlet damper 46 are controlled by the CPU 72 based on the signals from the temperature sensors 25, 26, 54. Therefore, the temperature in the rotary drum 21, the amount of hot air blown, and the sprinkler device. The adjustment and control of water sprinkling by 27 can be automated.

Next, the method for producing special malt according to the present invention will be described in more detail with reference to FIGS. 3 and 4. FIG. 4 is a flow chart for explaining the method for producing special malt according to the present invention. First, in order to start the above warm-up process, the burner fan 32 and the exhaust fan 52 are activated, the burner 31 is ignited, and the drum motor 2
2 starts, and the rotating drum 21 is rotated at a speed of 24 rpm (S100). This is continued until the rotating drum 21 reaches a predetermined temperature (S102).

When the inside of the rotary drum 21 reaches a predetermined temperature,
The temperature sensor 26 detects this and instructs and notifies that the warm-up is completed (S104). Further, if warm-up is required (S106), that effect is instructed (S108), and warm-up is continued.

When it is not necessary to continue warming up, the introduction of the malt raw material is instructed (S110), and the introduction control damper 51 is fully closed (S112, S114). As a result, the flow of hot air is stopped during the introduction of the malt raw material. At this time,
The drum outlet damper may be closed in order to stop the flow of hot air while feeding the raw material and prevent the malt from flowing into the circulation path.

Next, the raw material charging gate 44 provided in the hopper 42 is fully opened (S116), and the malt raw material charged in the hopper 42 is charged into the rotary drum 21 of the roasting device 20 through the connecting portion 40. When the malt raw material is put into the rotary drum 21 (S118), roasting of the malt raw material based on the automatic temperature control program is started (S120). That is, the introduction control damper 51 and the drum outlet damper 46 are fully opened, the rotation speed of the rotary drum 21 is increased to 36 rpm (S122), and roasting of the malt raw material is started. During this roasting, the inside of the rotary drum 21 has a predetermined temperature, for example, 220 ° C.
(124), the sprinkler 27 is activated (S12
6), water is sprinkled in the rotary drum 21. As a result, the malt raw material in the rotary drum 21 is cooled, and the malt raw material is prevented from burning. When the temperature inside the rotary drum becomes 220 ° C. or lower due to water spraying (S128), the water spray device 27
Is stopped (S130). Such a rotating drum 21
The automatic temperature control inside is continued during roasting.
When roasting ends and the automatic temperature control program ends (S132), "roasting" is announced (S134).

Further, when it is necessary to continue the roasting (S136), that effect is instructed (S138). When it is not necessary to continue the roasting, the end of roasting is instructed (S140). This opens the discharge gate 24b,
The introduction control damper 51 is fully closed, the rotation speed of the rotary drum 21 is reduced to 8 rpm, and the burner 31 is extinguished (S142).

Then, the roasted malt raw material is discharged from the discharge gate 24b (S144) and transferred to the cooling tank 60. At the same time, the cooling fan 62 provided in the cooling tank 60 is activated (S146), and cold air is blown to the just-roasted malt raw material for a predetermined time, for example, about 2 to 3 minutes,
This is cooled (S148).

When the discharge of the malt raw material is completed, the discharge gate 2
4b is closed (S150). And the rotating drum 2
After cooling 1 (S152), a special malt manufacturing apparatus 1
0 is stopped (S154).

[0031]

INDUSTRIAL APPLICABILITY In the special malt production apparatus and the special malt production method of the present invention, the temperature and the amount of hot air supplied from the heat source are controlled based on the signal from the temperature sensor, and the roasting treatment is performed. Since the sprinkling means is controlled to operate when the temperature of the malt raw material exceeds a predetermined value, it is possible to efficiently produce the special malt without undue labor of the operator.

Further, since it is possible to control the ideal temperature throughout the entire production process of the special malt, it is possible to produce the special malt having the desired color and scent in a short time.
Further, by circulating the hot air to roast the malt raw material, the energy of the hot air can be used without waste, and the energy saving of the manufacturing method can be achieved.

[Brief description of drawings]

FIG. 1 is a system diagram of an apparatus for producing special malt according to the present invention.

FIG. 2 is a block diagram of a control unit of the special malt manufacturing apparatus according to the present invention.

FIG. 3 is a time chart showing the operating state of each component of the apparatus for producing special malt according to the present invention.

FIG. 4 is a flow chart of a method for producing special malt according to the present invention.

FIG. 5 is a flowchart following FIG. 4;

FIG. 6 is a flowchart following on from FIG.

[Explanation of symbols]

 10 Special Malt Manufacturing Device 20 Roasting Device 21 Rotating Drum 22 Drum Motor 23 Rotating Shaft 25 Temperature Sensor 26 Temperature Sensor 27 Sprinkler 30 Hot Air Generator 50 Exhaust Route 63 Circulation

Claims (2)

[Claims] 1. A roasting unit for containing malt raw material for roasting treatment, a rotating means for rotating the roasting unit, a heat source for blowing hot air to the roasting unit, and a roasting unit from the heat source. A circulation path for circulating the hot air blown to the focal portion to the heat source,
A temperature sensor for measuring the temperature in the roasting unit, a watering means for watering malt in the roasting unit, and a temperature control program for predetermined malt roasting are provided, and based on a signal from the temperature sensor. And controlling the temperature and the amount of hot air supplied by the heat source, and controlling the sprinkling means to operate when the temperature of the malt raw material during the roasting process exceeds a predetermined value. And special malt production equipment. 2. A method for producing a special malt, in which hot air from a heat source is blown to roast the malt raw material, which is stored in the roasting portion rotated by a rotating means, to roast the malt raw material. The temperature of the malt raw material is detected by a temperature sensor,
While controlling hot air from a heat source based on the temperature detection result by a control unit having a temperature control program for malt roasting that is predetermined, watering by a watering means to the malt raw material in the roasting unit. A method for producing a special malt characterized by controlling.