JPH06167429A - Grain sampling device for lift - Google Patents

Abstract

PURPOSE:To properly supply sample grain to the moisture meter provided in the way of a lift. CONSTITUTION:The sample grain take-in port of a moisture meter is provided to the machine frame of a lifter 11 wherein a belt having a plurality of buckets 28 arranged thereto at a predetermined interval is provided. When only the bucket 28a among a plurality of the buckets 28 is transferred from a forward process scooping up grain to a backward process, the bucket 28a is formed into a carried-about inner peripheral shape in order to scatter the scooped-up grain to the outside of the range of the charging opening part 15 provided to the upper part of the machine frame of the lift 11 to forcibly reflux a part of grain into the lift.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grain sampling device for elevators used in grain dryers.

[0002]

2. Description of the Related Art In a grain dryer, a moisture meter is provided to monitor the dry condition of dried grains. Generally, this moisture meter is installed in the middle of an elevator provided for grain circulation. . However, in the above-mentioned form, since the grain overflowed from the elevator bucket is received at the intake port of the moisture meter as a sample grain, when the grain conveyed in the elevator bucket decreases, the overflow grain decreases and the sample amount becomes appropriate. Cannot be secured.

[0003]

Therefore, according to the present invention, a sample grain intake port 25 such as a moisture meter 26 is provided in a frame of an elevator 11 having a belt 13 in which a plurality of buckets 28, 28 ... Are arranged at predetermined intervals. And a plurality of buckets 28, 2 are provided.
In order to scatter only some of the buckets 28a, 28a of 8 ... from the forward stroke i for scooping the grain to the reverse stroke b, the scooped grain is scattered outside the range of the spout opening 15 at the top of the elevator 11 frame. The grain sampling device for an elevator is formed to have an inner peripheral shape that is rotated around.

[0004]

Effects of the Invention Grains supplied on the lower side of the elevator are scooped up by the buckets 28, 28, and are transferred in the forward stroke and are transferred to the return stroke at the upper end while the grains inside the bucket are scattered. While being discharged through the spout opening 15, some of the buckets 28
The inner peripheral shapes of a and 28a do not face the throwing opening 15 but are rotated around to some extent and returned to the elevator 11. This reduced grain is supplied to a moisture meter or the like and used as a sample for analysis.

Since the sampling shape is added only to some of the buckets, less grain is wasted than the case where all the grains have the same shape and a portion of the grains is constantly returned to the elevator 11, and addition and deletion of the buckets are performed. It also has the effect of making it easy to adjust the amount of grain needed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. 1 is a machine frame of a grain dryer, and a storage tank 2, a drying chamber 3, and a grain collecting chamber 4 are vertically installed from the upper part in the frame, and the drying chamber 3 includes a burner cylinder having a burner 5. The grain flow-down passages 9, 9 are formed between the hot air chamber 6 leading to the air passage and the exhaust air chamber 8 leading to the fan body having the suction fan 7, and the feeding valves 10, 10 provided at the lower portions of the respective flow passages 9, 9. With a constant rotation, the grains flowing down by a predetermined amount are exposed to hot air and dried.

Outside the machine frame 1, an elevator 11 is installed upright on one side of the grain collection chamber 4 for lifting and returning the collected grain to the storage tank 2. The elevator 11 includes a pair of upper and lower drive pulleys 12 inside.
The bucket belt 13 is wound between the driven pulley and the driven pulley so that the dry grain transferred to one side can be transferred to the scooping upper part by the lower transfer spiral 14 provided laterally below the grain collection chamber 4. . The grain picked up by the elevator 11 and thrown at the upper part is guided to the starting end side of the transfer gutter 17 provided with the upper transfer spiral 16 through the spout opening 15.
The grains that are horizontally transferred by the transfer spiral 16 are stored in the storage tank 2.
It is configured such that it is guided by the rotary diffusion plate 18 disposed in the upper center part of and is dropped into the storage tank 2.

The elevator 11, the upper and lower transfer spirals 1
The grain circulation system consisting of 4, 16 is rotationally interlocked by a circulation system motor 19 fixed to the upper side wall of the frame of the elevator 11. A shaft 22 of the upper transfer spiral 16 and a shaft 23 of the drive pulley 12 around the bucket belt 13 of the elevator 11 are directly rotatably interlocked with two drive belts 20 and 21 on the drive shaft of the motor 19.

An intake port 25 is provided on the side wall 24 of the elevator 11 at an appropriate height so as to correspond to the space between the forward and backward strokes A and B of the bucket belt 13 and the intake. A moisture meter 26 is detachably attached to the lower side of the mouth 25. The moisture meter 26 has, for example, a known configuration in which one resistance of a sample grain is crushed between a pair of electrode rolls and its resistance value is electrically processed to be converted into a grain moisture value.
Between the electrode rolls, an inclined guide plate 27 is fixedly provided in the elevator 11 at a position where it can be seen into the intake port 25 so that the sample grain can be taken in from the intake port 25. The buckets 28, 28 ... Arranged at predetermined intervals on the bucket belt 13 of the elevator 11 are made of resin material and have a U-shaped cross section. Two reinforcing ribs 29, 30 are integrally formed inside and are opposed to each other. The two buckets 28a, 28a that are formed together are sampling buckets integrally formed with the reinforcing ribs 29, 30 and the guide ridges 31 diagonally on the grain scooping side inner wall. The guide ridges 31 are connected to one of the reinforcing ribs, and the grain scooped in the partition space 33 formed by both of them and the inner wall 32 is held as it is in the forward stroke and partly removed from the spout opening 25 and thrown into the bucket. The inner peripheral shape (a part of the inner peripheral shape) constitutes a shape for returning inside the elevator 11. The guide ridge 31 is formed so as to coincide with the side having the moisture meter 26. Further, although the partition space 33 is formed by the reinforcing rib 29 and the guide ridge 31, both may be guide ridges.

Reference numeral 34 is a tension hopper. The operation of the above example will be described. A predetermined amount of grain is loaded into the storage tank 2 from the loading hopper 34 using the elevator 11. Next, the grain type, finishing moisture, etc. are set and the drying operation is started. Grains in the storage tank 2 are exposed to hot air while flowing down the drying chamber 3 and reach the grain collecting chamber 4. The grain that has received the hot air is transferred to one side by the lower transfer spiral, and the buckets 28, 28 of the elevator 11 ...
At the time of turning for a while along the pulley 12 on the upper side, most of it is taken over by the upper transfer spiral 16 through the spout opening 15 and reaches the storage tank 2 again for a while. Receives tempering effect.

The above process is repeated to complete the drying when a predetermined water content is reached. During the above drying operation,
At a relatively high position, a part of the grain overflowing from the forward bucket 28, 28 ... Or a part thrown from the partition space 33 part partitioned by the guide ridge 31 of the bucket 28a, 28a is removed from the spout opening 15. A part of the grain is collided with the inner wall and dropped, bypassing the bucket belt 13 and received by the inclined guide plate 27, taken into the moisture meter 26 through the intake port 25, and set at predetermined time intervals. Moisture is measured. The drying speed is calculated from the measured water content, and the hot air temperature, that is, the burner 5 is adjusted so that the drying speed becomes a predetermined value.
The amount of fuel supplied to the fuel cell is controlled.

Since the buckets 28, 28 ... In the above-mentioned embodiment are formed with slanted guide ridges 31 on the inner wall of the grain picking-up side, a predetermined amount of grain is constantly provided in the space 33 parted by the ridges 31 and the reinforcing ribs 29. Can be secured, bucket 28, 28 ...
Insufficient amount of grain to be scooped with
It is possible to secure a stable amount of return to the sample intake section 25 in the elevator regardless of whether it is too small. Therefore, this is advantageous when it is necessary to continuously measure the water content of a plurality of particles within a predetermined time and average them, as in the case of a one-particle moisture meter.

Buckets 28a, 28 in the present embodiment
Although the guide ridges 31 of a are provided only at the two opposing positions, the number of the guide ridges 31 may be increased if necessary. Although the moisture meter has been described as an example of sample uptake in the present embodiment, the same applies to sample uptake simply for visual determination and the like.

[Brief description of drawings]

1] Overall front view

FIG. 2 is a sectional view.

FIG. 3 is a sectional view taken along line AA.

FIG. 4 is a sectional view taken along line BB.

[Figure 5] Bucket front view

FIG. 6 is a bucket plan view.

[Figure 7] Bucket rear view

[Figure 8] Left side view of bucket

FIG. 9 is a right side view of the bucket

FIG. 10 is a bottom view of the bucket.

[Explanation of symbols]

 1 Grain dryer frame 2 Storage tank 3 Drying chamber 4 Grain collecting chamber 5 Burner 6 Hot air chamber 7 Suction fan 8 Exhaust chamber 9,9 Grain flow passage 10, 10 Feeding valve 11 Elevator 12 Drive pulley 13 Bucket belt 14 Lower transfer spiral 15 Throw opening 16 Upper transfer spiral 17 Transfer trough 18 Rotating diffuser 19 Circulation system motor 20,21 Drive belt 22 Shaft 23 Shaft 24 Side wall 25 Intake port 26 Moisture meter 27 Inclined guide plate 28 Bucket 28a , 28a Sampling bucket 29,30 Reinforcing rib 31 Guide ridge 32 Inner wall 33 Partition space 34 Tightening hopper

Claims (1)

[Claims] 1. A plurality of buckets 28, 28 at predetermined intervals.
A sample grain intake port 25 such as a moisture meter 26 is provided in the machine frame of the elevator 11 that houses the belt 13 in which a plurality of buckets 28a, 28a
Only 28a is formed into an inner peripheral shape that is scooped so that the scooped grain is scattered outside the range of the spout opening 15 on the upper part of the machine frame of the elevator 11 when shifting from the forward stroke i for scooping grain to the reverse stroke b. Grain sampling device for elevators.