JPS6096887A - Cereal drier - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention generally relates to grain drying methods that provide a cyclical drying effect to grains to be dried, and more particularly, to drying methods based on drying temperature settings and initial moisture content. ,: Concerning grain drying I which adjusts the grain temperature value using the grain humidity reference value.

When performing drying work using a conventional grain dryer, the drying temperature is set according to the type of grain to be dried prior to driving the dryer, and then predetermined controls such as fuel flow m control are performed. In this way, the temperature of the dryer was controlled to match the drying temperature of the warm melon kernels. However, in the temperature control described above, the initial moisture content of the grain to be dried is not used as a parameter for grain temperature adjustment.
The drying work for grains of type 1i1 with different initial moisture contents was carried out in row 4 using a uniformly set drying temperature as the target value.

Therefore, for grains with low initial moisture content, it is often necessary to perform unnecessary drying work over a long period of time, instead of drying it in a relatively short period of time. There was. Also, for the reasons mentioned above, if the drying process lasts for a long time, overdrying will occur, which can cause a decrease in product value, such as cracking of the shell.Contrary to the one-sided description of 7C0, even grains of the same type have a high initial moisture content. Although drying requires a relatively long period of time, if the drying temperature reaches the initially set drying humidity (1) target value, the dryer will automatically stop operating even in the middle of sheet metal drying. Therefore, there is no stuffiness in the undried grains being discharged outside the machine or in the grains being circulated inside the machine! 1- There were some drawbacks.
Therefore, the present invention is an attempt to improve the above-mentioned drawbacks of the conventional technology, and the first objective is to make it possible to perform drying work to the minimum necessary level depending on the initial moisture content of the grain to be dried. The purpose of the present invention is to provide a grain dryer that does not reduce the grain quality.

The fourteen features of the present invention to achieve the above [Object 1] include a grain type setting means 9 for setting the drying water content according to the type of the grain to be dried, etc.; The moisture content detection means 21 for detecting the grain temperature and the detection means 17 for detecting the grain temperature of the grains being dried are used to set the drying temperature given to the grain type setting stage J. The grain temperature of the grain is determined based on the set value and the initial moisture content detected by the moisture content detection means. I (1 + Q) to ξ, the Jttv
l 4fi detected by the grain temperature detection means I
This grain drying unit is equipped with a grain temperature adjusting means 1 which adjusts the grain temperature based on a comparison calculation with the grain temperature value.

The present invention will be explained in detail below with reference to the drawings.

The accompanying drawing shows a block circuit diagram of a control device for a grain dryer according to an embodiment of the present invention.

In the figure, reference number 1 is a grain temperature adjusting means, that is, a microphone 1 and a computer, and a mark color computer 1 is a CP
Move U101, input circuit 102, and output circuit 103 to the right. The input information given to the CPU 101 via the input circuit 102 is, for example, an elevator motor, an upper spiral, []
- Drive system safety sensor information 23 output from the drive system safety sensor 9-nY3 that detects the driving status of the dryer drive system such as the tally valve and lower helix, drying of the ignition heater, fuel supply pump, etc. (driving status of the combustion system) Combustion system safety error information 25 output from the combustion system safety lens group 5 that detects
Target moisture content setting information 27 output from the target moisture content setting knob 7 for setting a target moisture content selected according to the characteristics of the grain to be dried; Grain type setting information 29 output from the grain type setting means 9, that is, the grain type setting knob 9, in which the drying temperature setting value of the grain is automatically set by turning the scale according to the type. Motor drive switch operation information 31 given from the motor drive switch 11 that drives the dryer motor 45, ignition switch operation information 33 given from the ignition switch 13, stop switch operation information 35 given from the stop switch 15, Grain temperature detection means 17 for detecting the temperature of grains to be dried during circulation drying
5 grains warm Renri '17) j grain +! +a l=
moisture content detection information 39 outputted from the moisture content detection means 21, that is, the water separator 121, which detects the initial moisture content of the grains to be dried when they are loaded into the dryer and the moisture content of the grains during circulation drying. There is. The feature of the present invention is that the grain temperature of the grain to be dried is adjusted by providing a grain type setting knob 9, a moisture index 21, etc., and a grain temperature control 4J17. C
I) The display output of tJ 101 is given to the display device 47 via the output circuit 103, and a predetermined l-Eo display is made. CI) Ulo.

A drive command signal for the dryer drive system and/or the combustion system given from 1 is given to drive circuits (not shown) for the motor 45, the fuel supply pump 43, and the fuel supply solenoid valve 41 via the output circuit 103, respectively.

Reference number @51 is a power source for driving the micro 1 viewer 1.

The memory 104 contains a control program and the like and also stores necessary data.

The CPU 101 uses arithmetic theory L'J! Operation and (J comparison'
a Let's shine. cpu"+oi performs the functions described in 1 below. ■ The grain type setting information 29 output from the grain type setting knob 9 is taken in via the input circuit 102 and the drying temperature of the granules to be dried is determined based on the information. A target value of is calculated and stored in memory '104.

(2) Moisture content detection information 39 of the grains to be dried outputted from the water cutter 21 when loaded into the dryer In other words, the initial moisture content detection information 39 is taken in via the input circuit 102 and stored in the memory 104 . The target value of the drying tR temperature calculated in ■■ and the initial moisture content detection information 39 taken in in ■■ are called from the memory 104 to calculate the grain thirst standard value, and the extracted standard 1i1 is stored in the memory 104. do. ■ The grain temperature range information 37 of the dried grains during circulation drying outputted from the grain temperature sensor 17 is taken in via the input circuit 102, and the information is combined with the grain temperature reference value information called from the rice sensor 104. Compare t3'l t'>ru. Based on the result of the comparison operation performed in ■■, "C grain temperature 1σ" - / lowered U
Combustion control is preferably performed by outputting a predetermined valve drive command signal to a valve drive circuit (not shown) via the output circuit 103 and controlling the opening and closing of the combustion-specific power supply 111 and valve no. 41.

The control operation of the above configuration will be explained using the accompanying drawing (71).

Drying Work Volume W First, the A-pellator is connected to a power source 5 that supplies commercial current to a computer 11-1 installed in the control box (not shown) of the dryer.
Write ゛1 as A. Next, the grains to be dried are dried (drying) (21).
That is, the initial moisture content) is detected and the detected information 39 is output.

CI) jJ 101 receives moisture n via the input circuit 102
It takes in the nQ information 39 outputted from 121 and stores it in the memory 104.

The CPU 101 takes in the grain type setting information 29 output from the grain type setting knob 9 via the input circuit 102, and sets the target value of the drying temperature of the grains to be dried based on the information as described above. CPU 101 is input circuit 10
When the ignition switch operation information 33 outputted from the ignition switch '13 is taken in through the output circuit 103, the set target value C is input to the pump 43 and the valve 41 through the output circuit 103 in order to perform the circulation drying operation. Drive circuit (not shown)
A drive command signal is output to. The CPU 101 calculates a grain temperature reference value of the grain to be dried based on the set drying temperature index 1jrJ and the initial moisture content. CPU1
01 takes in the grain temperature 1 = temperature information 37 of the grain to be dried during circulation drying which is output from the 'J'/IA lens 117 through the input circuit 102 and calculates the grain temperature, Comparison calculation with reference value. As a result of the above comparison calculation, the CPU 101 recognizes that the detected grain temperature is below the grain temperature 1% value! This outputs a predetermined valve drive command signal to a valve drive circuit (not shown) via the output circuit 103 in order to increase the fuel flow rate supplied to a burner (not shown). The CPU 101 continues the above-described fuel flow m control until the detected value outputted from the grain temperature range 17 via the input circuit 102 becomes equal to the reference value. CI) Ulol is compared with the above) σ (result of bell, detected I this grain) blue light is grain humidity j, eye 1 (lffi
As soon as it is recognized that the temperature has become approximately
When a predetermined valve drive stop command signal is output, the drive of the dryer combustion system is restarted. After completing the 1st work, we move on to the ventilation drying work.This example is just one example according to the present invention ('tI 9 (unexploded + ttl is limited to the above example) , 'There are not even eight bad things.

According to the present invention, the drying temperature and the moisture content detection means are set by the grain type setting means.
Detected and excluded from the water content! Based on the grain temperature 1i'-11ft, the grain temperature is detected by the grain temperature detection means. The drying process can be completed in a relatively short time even if the initial moisture content is low, even if the grain is a stud.

Therefore, unnecessary drying work is not carried out for a long period of time, so over-drying can be prevented, and causes such as cracking of the granules, which can lead to low commercial value, can also be eliminated. In addition, for grains that have been interpolated, the drying process is relatively long (for grains with a high moisture content in the first month). It is also possible to prevent stuffiness from occurring in the lfl internal circulation medium.

[Brief explanation of drawings]

The accompanying drawing is part 1b showing a ten-dimensional diagram of a control device for a grain dryer according to an embodiment of the present invention. 9... Grain type setting means (grain type setting knob) 21
... Moisture content detection means (moisture it) 17 ... Grain temperature detection means (grain temperature range) 1 ... Granule temperature adjustment means (microcombi" - 3) ♂ -

Claims (1)

[Claims] A grain type setting means for setting a drying temperature according to the type of grain to be dried; a moisture content detection means for detecting the moisture content of the grain to be dried; and a grain temperature of the grain during drying. and a detection means for detecting J:, and the grain type setting means J:! Based on the obtained drying temperature setting value and the initial moisture content detected by the moisture content detection means, extract the grain '#I warm melon base value of the grain, and calculate the ratio. 1. A grain characterized in that it is provided with a grain temperature adjusting means for adjusting the grain temperature based on a comparison result with the grain temperature value detected by the grain temperature detection means. Dryer.