JPH0245748A - Grain moisture measuring device - Google Patents

Abstract

PURPOSE:To shorten intervals of grain-by-grain detection time for grain moisture content and to speed up the grain moisture detection by providing plural parallel feed-out rolls which have spiral grooves in their outer peripheral surfaces for feed grains by rotation. CONSTITUTION:Grains which are being dried are fed, one after another, from a dryer by the spiral grooves 1 of the feed-out rolls 2 provided in parallel and fitted. Then the grains are supplied from individual end parts to detection rolls 3 which are provided in parallel, and pressed and crushed by the outer peripheral surface parts of the detection rolls 3, and the moisture content of the crushed grains is detected individually. Then when the moisture content of the detected crushed grains reaches a finish target moisture content, the drying of grains is stopped and remaining grains which are not fed to the respective spiral grooves 1 fall and are returned into the dryer and dried. Consequently, the intervals of grain-by-grain detection time for grain moisture content are shortened and the grain moisture detection is speeded up.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a grain moisture measuring device and can be used in grain dryers and the like.

Conventional technology Conventionally, grains were fitted into a spiral groove provided on the outer circumferential surface of a rotating feed roll and guided to a guide plate along the direction of the axis of one rotation, and the grains were fed and transferred and detected from the end. This was a grain moisture measuring device that detected the moisture content of the crushed grains while supplying the grains to the upper side of a roll and crushing the crushed grains by pinching and pressing the outer peripheral surface of the detection roll.

Problems to be Solved by the Invention For example, in a grain moisture measuring device used in a grain dryer,
During grain drying work in this dryer, each part of the grain moisture measuring device is started by sending an electrical measurement signal, and some of the grains being dried are stored in the dryer and circulated repeatedly. teeth,
The grains are fed from this dryer to the upper side between the feed roll and the guide plate of this grain moisture measuring device, and the grains are fed into the spiral groove of the feed roll one by one by the rotational drive of the feed roll and fit into the spiral groove of the feed roll. They are combined and transported along the direction of the rotation axis while being guided by the guide plate, and are supplied from the end to the upper side between detection rolls provided on the lower side, where they are fed and crushed by the outer circumferential surface of the detection rolls, The moisture content of the crushed grains is detected, for example, the moisture content of 32 grains is detected in each grain in this transmission signal, the average value of the detected moisture content of these 32 grains is calculated, and the moisture content of the 32 grains obtained by this calculation is The average moisture value becomes the grain moisture detected once, and the remaining grains that were not fed into the spiral groove leak and are returned to the dryer and re-dried, and this detected grain moisture becomes the finishing target. Once the moisture is equalized, the drying of the grain is stopped.

The purpose is to shorten the time interval between grain moisture detection for each grain to speed up grain moisture detection and at the same time improve the accuracy of detected moisture.

Means for Solving the Problems The present invention provides a plurality of feed rolls (2) in parallel having spiral grooves (1) on the outer circumferential surface for feeding and transferring grains by rotation, and a lower end of the feed rolls (2). A method for measuring moisture content of grains, in which a plurality of detection rolls (3) are arranged in parallel on the side to detect the moisture content of the crushed grains while receiving the grains fed out from the feed rolls (2) and crushing them under pressure. The configuration of the device.

Effect of the Invention While grains are being dried in a grain dryer, each part of the grain moisture measuring device is started by sending an electrical measurement signal, and the grains being dried are stored in the dryer and circulated repeatedly. A portion of the grains is supplied from this dryer onto a plurality of parallel delivery rolls (2) of this grain moisture measuring device, and each delivery roll (2) is rotated by the rotational drive of each delivery roll (2). ) of t
The grains are fed into the grooves (1) and (1) one by one and fitted together, and then transported along the rotational axis direction to the detection rolls (3) installed in parallel from separate ends. ), the grains are fed and crushed by the outer circumferential surface of the detection rolls (3), and the moisture content of the crushed grains is detected separately, for example, the grains detected separately in this transmission signal. Moisture is detected in 32 grains, the average value of the detected moisture in these 32 grains is calculated, and the average moisture value of the 32 grains obtained by this calculation is considered as the grain moisture detected at one time, and this detected grain moisture is used as the finishing target moisture. When the grain moisture becomes the same, the drying of the grains is stopped, and the remaining grains that have not been fed into the respective spiral grooves (1) leak and are returned to the dryer and dried.

Effects of the Invention According to this invention, grains are transferred by the spiral grooves (1) of a plurality of parallel delivery rolls (2), and the grains are transferred from separate ends of these delivery rolls (2) by a plurality of grains arranged in parallel. By separately supplying the grain moisture to the detection rolls (3) and detecting the grain moisture separately between these detection rolls (3), the grain moisture of a predetermined number of grains can be detected in a short time, and at the same time, the transmission signal can be detected. By reliably detecting the moisture content of a predetermined number of grains within a predetermined time, an average value is calculated from the detected moisture content of the predetermined number of grains, so that accurate grain moisture can be obtained. Now, the grain moisture measuring device (5) attached to the grain dryer 41 (4) will be explained.

The dryer (4) has a storage chamber (7) formed in the upper part of the machine wall (6), and below the storage chamber (7) is a drying chamber (7) in which a delivery valve (8) is rotatably supported. 9) are installed in parallel and communicated,
A grain collection gutter (10) in which a transfer spiral is rotatably supported is provided on the lower side of each drying chamber (9) and communicated with the drying chamber (9), and the drying chamber (9) is connected to the drying chamber (9) on the front side of the machine wall (6). (4) An operating device for starting and stopping operations! (11) and burner (12)
) is installed inside the burner case (13), the rear machine wall (6) is equipped with an exhaust fan (14), and the upper side of the storage chamber (7) is equipped with a ceiling plate ( 15) and a transfer gutter (1B) equipped with a transfer spiral, and this transfer gutter (1B) is provided.
6) A supply port for supplying grains to be transferred into the storage chamber (7) is provided in the center, and a diffusion plate (17) is provided below the supply port.
This is a configuration with a

The grain raising machine (18) is installed in the front part of the machine wall (6) on the front side, and inside there is a packet conveyor (18) stretched between the upper and lower belt pulleys, and the upper end and the starting end of the transfer gutter (1B). A feeding tube (21) is provided between the lower end and the terminal end of the grain collecting gutter (10) to communicate with each other, and a feed gutter (21) is provided between the lower end and the terminal end of the grain hoist (18). ) The grain moisture measuring device (5) is installed in the center of C in the vertical direction, and the packet conveyor (1
8), the grains falling while being conveyed to the upper part are received by a grain flow gutter (22), guided downward by this grain flow gutter (22), and supplied into the grain moisture measuring device (5). , a lower part is provided with a loading hopper for supplying grains into the grain hoist (18).

The grain moisture measurement'! IC placement (5) is on the front and rear plates (23)
(23), upper and lower plates (24), (24), and left and right horizontal plates (
25) and (25) are formed into a box shape, and inside this box there are supporting metals (26), (27), (28) and grain racks (3).
0) is provided, and each delivery roll shaft (31
), (32), : The support metal (2e) (27
), (2 days), and the feeding roll shaft (3 days).
3) is rotatably supported by the support metals (28) and (27), and these respective feeding roll shafts (31), (32), (
33) are provided in parallel, and on the other hand, the respective feeding rolls (2) having different overall lengths are fixed in order of the longest overall length, and on the other side of this feeding roll shaft (31), a bevel gear (34) and a small diameter gear (35) are attached. ) and a large diameter gear (3B) are fixed, and a small diameter gear (37) is fixed to the other side of the feed roll shaft (33), and this small diameter gear (37) and the small diameter gear (35) are fixed. The large diameter gear (3B) is fixed to the other side of the feed roll shaft (32), and the large diameter gear (38) and the large diameter gear (3B) are meshed with each other. A motor (38) is provided on the grain shelf (30) below the terminal end of the feed roll (2) of the feed roll shaft (31), and a motor (38) is provided at the shaft end of the motor (3S). Gear (40) in order from the bottom,
A bevel gear (41) and a detection roll (3) are fixed, and the lower side of the terminal end of the feeding roll (2) of the feeding roll shaft (33) and the terminal end of the feeding roll (2) of the feeding roll shaft (32) are fixed. Detection roll shafts (46) and (47) pivotally supported by the grain rack (30) are provided on the lower side of the part.
A gear (42) and the detection roll (3) are fixed to the detection roll shaft (4B), a gear (43) and the detection roll (3) are fixed to the detection roll shaft (47), and each of these detection rolls ( 3) is a configuration in which they are provided in parallel, and the bevel gear (41) of the motor (38) and the bevel gear (34) of the feed roll shaft (31) are in mesh with each other, and each of these gears ( 40), (42), and (43) are in mesh with each other, and the respective feeding rolls (2) are rotated by the motor (39).
And the valley detection roll (3) is configured to be rotationally driven.

Each of the feed rolls (2) has a spiral groove (1) on its outer peripheral surface into which grains are fed and fitted one by one, and a deep groove into which remaining grains that are not fed into the spiral groove (1) leak. A spiral groove (48) is provided, and each of the feed rolls (2) is provided with a spiral groove (48).
Upper: The grains to be fed are fed one by one into the spiral grooves (1), (1) of each feed roll (2), and are fed along the spiral grooves (1), (1). The grains are transported and dropped separately from each end, and the falling grains are collected by the detection roll (3).

(3) The structure is such that the moisture content of the crushed grains is detected at the same time as the crushed grains are compressed and crushed at the outer peripheral surface portion.

The left and right horizontal plates (25), (25) and the supporting metal (
27) is provided with cleaning brushes (44) for removing the moisture detection method crushed grains adhering to each of the detection rolls (3), and removes the moisture detection method crushed grains and the respective spiral grooves (48). )
The residual grains leaking from the husks are guided down by the husks shelf (30) and supplied into the husk raiser (18), where they are circulated and dried simultaneously with the grains being circulated and dried. The air in the grain moisture measuring device M (5) is suctioned and discharged into the grain raising machine (18) by the movement of air inside this grain raising machine (18), and the grain moisture measuring device A suction fan (4
5) may be provided, and the air in the grain moisture measuring device (5) may be sucked and discharged into the shell raiser (18).

The motor (38) rotates due to the electrical measurement signal transmitted at predetermined time intervals from the operating device (11), and the rotation of this motor (39) causes the grain moisture measuring device (5) to rotate. Each part is driven to rotate forward or backward to detect the moisture content of the grains.For example, the moisture content of 32 grains is detected, and the average value of the detected moisture content of these 32 grains is determined by this operating device. Calculated by (11), 32 obtained by this calculation
The average value of the grains is taken as the detected grain moisture of - times, and this detected moisture is displayed on the display window of the operating device (11), and this grain moisture measuring device M (5) When the same grain moisture as the target is detected, the operating device (11) of ζ is automatically controlled to automatically stop the dryer (4).1. The structure is such that the drying of the grains is stopped.

By operating the operating device (11), the dryer (4)
At the same time, the burner (12) and the grain moisture measuring device (5) are started, and hot air is generated from the burner (12), which is passed through the drying room (9) and sent to the exhaust fan (14).
The grains stored in the storage chamber (7) by being suctioned and exhausted by the storage chamber (7) are exposed to this hot air and dried while being drawn down from the storage chamber (7) into the drying chamber (9). (8), the grain is fed out to the lower part from the collection gutter (10) to the supply gutter (21).
The grains are then transferred and supplied into the grain raising machine (1 day) by the lower transfer spiral, guided to the upper part by the packet conveyor (18), passed through the dispensing cylinder (20), and fed into the transfer gutter (16). The grains are transferred and supplied from the transfer gutter (IE) onto the diffusion plate (17) by the upper transfer spiral, and are evenly diffused and reduced into the storage chamber (7) by this diffusion plate (17), and are circulated and dried. When the moisture measuring device (5) detects the same grain moisture as the finishing target, the operating device (11) automatically controls and automatically stops the dryer (4).

During this drying work, the grains that fall while being transported north by the packet conveyor (13) are received by the grain gutter (22) and guided down by the grain gutter (22) to separate them into grain trees. Measuring device 21
(5) onto each feed roll (2), and this grain moisture measuring device (5) is connected to the operating device? It is actuated by the transmission of an electrical measurement signal transmitted at predetermined time intervals from t (11), and the grains are fed one by one between the spiral * (1) and (1) of each of the feeding rolls (2). The grains are fitted together and transported along the spiral groove (1), and fall separately from the ends of the respective feed rolls (2), and the falling grains are detected by the detection roll (3).
, (3), the moisture content of the crushed grains is detected at the same time, and the average value of the detected moisture content of each of the 32 grains is calculated by the operating device (11). The average value obtained by the calculation becomes the grain moisture detected once.

The grains fall from separate ends of each feed roll (2),
By separately detecting the moisture content of the separately fallen grains between the detection rolls (3), the time required to detect the grains was significantly increased.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a plan sectional view, Fig. 2 is a sectional view taken along line A-A in Fig. 1, and Fig. 3 is an overall side view of the dryer partially cut away. , FIG. 4 is a sectional view taken along the line BB in FIG. 3. In the figure, code (1) is a spiral groove, (2) is a feeding roll, and (3) is a spiral groove.
) indicates a detection role.

Claims (1)

[Claims] Spiral grooves (1) on the outer circumferential surface where grains are fed and transferred by rotation.
A plurality of feed rolls (2) having a diameter of A grain moisture measuring device comprising a plurality of detection rolls (3) arranged in parallel to detect moisture.