JPS5823548B2 - Drying section dust removal device in circulation humidity control type grain drying equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a drying section dust removal device in a circulation humidity control type grain drying device.

Conventionally, humidity control type drying equipment uses a humidity control tank at the top, and a flowing drying section is attached to the bottom of the tank, and the grain dried in the drying section is piled up and returned to the upper humidity control tank for circulation drying. However, (for example, the special public official
(Refer to Publication No. 1), the drying device has defects in which dust accumulates on the bottom wall of the hot air supply chamber or the bottom wall of the hot air exhaust chamber.The present invention is a method for removing the accumulated dust. , the bottom walls of the supply chamber and the ventilation chamber can be opened and closed, and switching between loading, discharging, and drying can be done to prevent the bottom walls from being opened during continuous operation and hindering the drying operation. It is designed to open in conjunction with operation, thereby allowing drying without burrs and easy removal of dust.

Therefore, the present invention, which has been devised, is equipped with a humidity control tank at the top, a falling type drying section at the bottom, and an elevator on the side that stacks and returns the grain discharged from the drying section into the humidity control tank.
The downstream drying section is formed into a downstream drying chamber in which both sides are formed of porous members between the hot air supply chamber and the hot air exhaust chamber, and the bottom wall of the hot air exhaust chamber and/or the hot air supply chamber is a case. In a drying section dust removal device in a circulation humidity control type grain drying device configured to be able to be opened and closed within the drying device, the drying device is equipped with a gear group for switching the rotational speed of each section of charging, discharging, and drying, and This is a drying section dust removal device in a circulation humidity control type grain drying device, in which the gear group and the bottom wall are connected in a related manner so that the bottom wall opens and closes in conjunction with the switching operation of the groups. .

To explain with a diagram, 1 is a humidity control tank with a hollow inside, a flowing drying section 2 is provided at the bottom, a grain collection section 3 is formed below it, and a circulation section is provided on the side. Lift 4
is installed.

5 is a hot air supply chamber with vertical porous walls 6, 6' on both sides.
Flow F type drying chambers 7, 7' are provided, and hot air exhaust chambers 8, 8' are further formed outside the drying chambers 7, 7'.

The hot air supply chamber 5 is provided with a furnace 9, and the hot air exhaust chamber 8 is provided with a furnace 9.
, 8' are equipped with a suction machine 10, and when the suction machine 10 sucks, the hot air from the furnace 9 flows down.

The air is discharged across the drying chamber 7.7'.

7. The downflow drying chamber. A rotary valve 11.11' is mounted on a shaft at the lower part of each T', a grain collection gutter 12 is provided so as to surround both ends of the tally pulp 11.11', and a screw conveyor 13 is installed in the center of the grain collection gutter 12. is installed horizontally, and the end of the conveyor 13 faces the lower end of the elevator 4.

14 is a case, the upper part of the case 14 also serves as the humidity control tank 1, and the central part serves as the hot air exhaust chambers 8, 8'.
The F section also serves as the outer wall of the trough 12, and the F section supports the entire grain collection trough 12 and double surrounds the grain collecting trough 12.

Therefore, a chamber 15 is formed between the outer surface of the grain collecting trough 12 and the inner surface of the case 14.

Each bottom wall 16 of the hot air exhaust chamber 8, 8'. '16' is installed at a position slightly above the rotary valves 11, 11', and both bottom walls 16, 16' are double-mounted if they are on the right, or one of the left is pivoted by a shaft 17 or 17'. , which can be opened downward.

FIG. 3 shows a specific open configuration, with both bottom walls 16
．． 16' is always biased in a closed state by a spring 18, 18', and is connected by a wire 19, so that when the wire 19 is pulled, it opens downward against the elasticity of the spring 18, 18'. be done.

Reference numeral 20 denotes a gear group, which is housed in the case, and has a switching lever 21 protruding from its negative side, and connects the switching lever 21 and the wire 19 in a related manner.

The switching lever 21 is a lever that switches the meshing of the gear group 20. When grain is loaded, the gear group 20 is meshed so that it can be fed as quickly as possible, and when performing circulation drying, the gear group 20 is meshed at a predetermined speed. The gear group 20 was engaged so that the grains would flow down the down-flow drying chambers 7, 7' over a period of time (for example, a passing time of 15 minutes), and circulation drying was performed several times, and the lever 21 was switched to discharge. At this time, each part is rotated at the same speed as in circulation drying, and the bottom walls 16, 16' are horizontal when the lever 21 is in the drying or tensioning position, and open only when switching to discharge. Configure it to do so.

In the embodiment shown in FIG. 4, the bottom wall 22 of the hot air supply chamber 5 has an open structure. 23 and the wire 24, and the shutter 2
3 and an operating lever 25 are further connected by a wire 26, and when the lever 25 is operated, the bottom wall 22 is opened.

Next, we will discuss the effect.

In the first embodiment, when the switching lever 20 is set to the position indicated by the solid line in the center, the bottom walls 16, 16' of the hot air exhaust chamber 8, 8' become horizontal via the wire 19, and the elevator 4 is connected via the gear group 20. Rotate at high speed.

Therefore, when grains are introduced in the direction of arrow A, they are quickly spread, and the flow-down type drying chambers T and 7' and the humidity control tank 1 are filled.

In this state, when the switching lever 21 is moved to the drying position, the wire 19 is loosened, so the bottom walls 16, 16' are kept in the closed state by the springs 18, 18' and remain horizontal. The suction device 10 rotates to suck the hot air in the hot air supply chamber 5, and the hot air then traverses the down-flow drying chambers 7, 7' and reaches the hot air exhaust chambers 8, 8', during which the grains are dry.

Also, the rotary valve IL'11' rotates, and the grains in the flow F type drying chambers 1 and 7' are dropped little by little into the grain collection gutter 12.
It is caused to flow into the lower part of the elevator 4 by the screw conveyor 13, raised and returned to the top in the humidity control tank 1.

The amount of grain piled up in the humidity control tank 1 gradually increases, and after a long period of time, it finally enters the down-flow drying chambers γ and 7', during which time the moisture inside and outside of the grains is controlled, and the grain is dried for the second time. received,
Drying is completed by repeating this several times.

When drying is completed, the switching lever 21 is moved to the right in FIG. 3 to the discharge position.

Therefore, the wire 19 is pulled, and the bottom walls 16, 16' rotate downward against the elasticity of the springs 18, 18', thereby removing the dust accumulated in the hot air exhaust chambers 8, 8' from the lower chamber 15. It is made to fall inside.

In this case, if a large amount of dust falls into the chamber 15, it is taken out through an arbitrarily opened window and removed.

In the case of the embodiment shown in FIG. 4, when the operating lever 25 is rotated downward, the switching discharge shutter 23 of the elevator 4 is opened via the wire 26, and the bottom of the hot air supply chamber 5 is opened via the wire 24. The wall 22 is opened and the dust is dropped onto the grain collection gutter 12 and taken out together with the grains.

As described above, the present invention has a humidity control tank 1 in the upper part, a falling type drying part 2 in the lower part, and an elevator 4 on the side for reloading the grain discharged from the drying part 2 into the humidity control tank 1. The downstream drying section 2 is provided with a hot air supply chamber 5, a hot air exhaust chamber 8,
8' are formed into downstream drying chambers 7, 7' having porous walls 6, 6' on both sides, and the hot air exhaust chambers 8, 8.
' and/or the bottom walls 16, 16' of the hot air supply chamber 5 are configured to be openable and closable within the case 14. , 20 groups of rotational speed switching gears for filling, discharging, and drying are installed, and the 20 groups of gears and the bottom wall 16 are installed so that the bottom walls 16, 16' open and close in connection with the switching operation of the 20 groups of gears. , 16' are connected to each other to form a drying section dust removal device in a circulation humidity control type grain drying device.
, 16' are opened and the drying hot air is discharged to the outside, there is no risk of uneven drying.

That is, if the bottom walls 16, 16' are opened 45 during the drying operation, the hot air will no longer pass through the drying chambers T, 7', resulting in uneven drying.

However, in the present invention, when switching the 20 groups of rotating speed switching gears for filling, discharging, and drying, the bottom wall 16° 16'
Since this opens, the above-mentioned concerns are eliminated.

Furthermore, since the aforementioned switching of the gear groups 20 is always performed, there is no need to forget to open the bottom walls 16, 16', and the bottom walls 16, 16' are reliably opened to remove accumulated dust.

In addition, when the gear 20 groups are switched, the bottom wall 16,1
6' can be opened, making operation easier.

[Brief explanation of drawings]

Figure 1 is an overall side view, Figure 2 is a longitudinal side view of the dry area of pregnancy, and Figure 3 is a side view of the entire body.
The figure is a diagram of a first embodiment, and FIG. 4 is a diagram of a second embodiment. Explanation of symbols 1... Humidity control tank, 2... Down-flow drying section, 3... Grain collecting section, 4... Elevator, 5... Hot air supply room, 6.6'-... Porous wall, 7, 7'... Downflow drying room, 8, 8'... Hot air exhaust room, 9... Furnace, 1
0... Suction machine, 11° 11'... Rotary valve, 12... Grain collection gutter, 13... Screw conveyor,
14...case, 15...chamber, 16.16'...
Bottom wall, 17, 17'... shaft, 18.18'... spring, 19... wire, 20... gear group, 21...
Switching lever, 22...Bottom wall, 23...Switching discharge stopper 124...Wire, 25...Operation lever,
26...Wire.

Claims (1)

[Claims] 1. A tank for humidity control at the top, a downstream type drying section at the F section, and a side part for controlling the humidity of the grains discharged from the drying section. An elevator is provided in the tank for reloading, and the downflow drying section is formed into a downflow drying chamber with porous members on both sides between the hot air supply chamber and the hot air exhaust chamber. / Or in a drying section dust removal device in a circulation humidity control type grain drying device, in which the bottom wall of the hot air supply chamber can be opened and closed within a case, the drying device has rotating parts for filling, discharging, and drying. Dust in the drying section of a circulation humidity control type grain drying device in which a speed switching gear group is installed and the gear group and the bottom wall are connected so that the bottom wall opens and closes in conjunction with the switching operation of the gear group. removal device.