JPS6021313B2 - Circulating grain dryer - Google Patents

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to a circulating grain dryer whose constituent parts are unitized.

[Conventional technology 1] Conventional dryers of this type have a processing capacity of about 1 to 6 tons (1
It has an amount of grain that can be stored in one batch, and has a weight of around several hundred kilograms to one ton.It is transported to individual farmers in divided form, where it is assembled almost entirely by hand. Teshita, ta. [Problems to be Solved by the Invention] If we examine the actual situation in detail, we find that: ■ The demand for dryers ranges widely from 1 to 6 tons, even in terms of processing capacity, and as a result, farmers' In order to meet demand, many models were required, and from the viewpoint of mechanical strength, it was difficult to adopt common parts designs among each model. Therefore, there was a drawback that the product price was high. ■ It took a lot of effort to set up large models, which placed an excessive burden on the workers. Shortcomings have been pointed out. Therefore, the present invention takes into account the drawbacks of conventional dryers, improves the circulating grain dryer of the type disclosed in Hakamakai Publication No. 51-10069, and solves the above-mentioned drawbacks. It was designed to be eliminated.

[Means and actions for solving problems]

That is, the present invention has several types of grain storage tanks constituting a circulating grain dryer, drying chambers and grain flow chambers connected in parallel to this, and grain collection chambers connected to these in series. By preparing, selecting these and matching them,
Try to obtain a dryer with any processing capacity according to demand,
As a result, we were able to standardize parts and reduce the number of models manufactured compared to the number of models sold.Furthermore, we made the drying room stackable and separated from the grain collection room, reducing the weight of each part. It is something.

【Example】

Hereinafter, the present invention will be specifically described with reference to the drawings showing examples. In Figures 1 to 4, reference numeral 1 is a grain collection room, 2 is a drying room, 3 is a grain streaming room, 4 is a grain storage tank, 5 is a roof, 6 is a leveling device, and 7 is a grain collection room. This is an elevator that lifts grains from 1 to an equalizing device 6. Then, a drying chamber 2 and a streaming grain room 3 are connected in parallel to the lower part of the storage tank 4, which has a connection part from the elevator 7 to the equalizing device 6 as one receiving port, and furthermore, the drying chamber 2 and the streaming grain room 3 are connected in parallel. A grain collecting room 1 is connected in series to the lower part of each grain room 3. In addition, when two drying chambers 2 are stacked (see Figures 3 and 4), the drying chambers 2
A grain storage chamber 4a corresponding to the height of one grain is interposed between the storage tank 4 and the grain flow chamber 3. The grain collection room 1 is provided with a valley-shaped bottom plate 12 in a hollow box-shaped casing 11, and a screw conveyor 1 is installed along the valley of the bottom plate 12.
3 is arranged so that grains are discharged from the discharge port. Further, the upper space of the screw conveyor 13 is closed by an upper plate 14, which passes vertically through the upper plate 14 of the bracket to form a grain outlet 15 which is long in the front and rear direction in two parallel rows. Rotary valve 16 along mouth 15
are placed. The drying chamber 2 mounted on the upper part of the grain collection chamber 1 is equipped with a ventilation plate 23 having a mountain-shaped cross section and forming a hot air passage 22 in the center of a box-shaped casing 21. Ventilation plates 25 forming the ventilation passage 24 are installed facing each other at a certain interval, and these ventilation plates 23 and 25
It has a funnel-shaped grain flow path 26 formed by. The lower end of this grain flow path 26 is passed through the wire outlet 15. Further, a hot air generator 8 consisting of a burner, a blower (or exhaust) fan, a control device, etc. is provided outside the drying chamber 2, and the hot air generated by the hot air generator 8 is supplied to the hot air path 22. Furthermore, the grains flowing down the grain flow path 26 are passed through and crossed to the exhaust air path 24 side, thereby reducing the moisture content of the grains. In addition, the flowing grain room 3 stacked on top of the grain collecting room 1 is provided with a guide plate 32 having a mountain-shaped cross section in the center of a box-shaped casing 31, and one end of which is fixed to the inner surface of the casing 31 on both sides. A guide plate 33 whose forehead is inclined toward the guide plate 32 side is provided to form a funnel-shaped grain passage 34, and its lower end is fitted into the line outlet 15. A drying room 1 in which this flowing grain room 3 is piled up, and the above-mentioned drying room 2
The grain collection room 1 in which the grains are loaded has substantially the same height, upper surface area, and internal structure, and can be connected to and separated from the grain flow room 3 and the drying room 2. The flowing grain room 3 and the drying room 2 have substantially the same height and upper and lower surface areas, and grain storage tanks 4 are arranged in parallel above each of them. This storage tank 4 is constituted by a hollow frame-shaped casing 41, and is connected to the drying chamber 2 and grain streaming chamber 3 arranged side by side. The capacity of the storage tank 4 is determined in relation to the processing capacity of the dryer. Therefore, the casing 41 may be prepared in several types so as to obtain processing capacity according to the demand, and each side surface may be formed from a single plate. The plate may be divided into a plurality of parts so that they can be connected and separated. In the latter case, the two divided panel plates 41a, 41a are connected by a connecting plate 41c and a clamp CR to form a front and rear plate, and a reinforcing village 41b is provided between the front and rear connecting plates 41c, 41c. Since one end of the reinforcing plate 41e is fixed to the reinforcing village 41b (by the set bolt 41d) and the other side of the reinforcing plate 41e is connected and fixed to both side plates, if the connection by the connecting plate 41c is released and separated, as shown in FIG. It is now possible to connect the side plates and the front and rear panel plates 41a with clamps CR as shown in Figure 2, and it is also possible to form a circulating dryer in which the conventional upper storage tank, drying chamber, and grain collection chamber are stacked one above the other. It is possible. Further, in the storage tank 4, a mountain-shaped branch body 42 is installed so as to straddle the upper ends of the drying chamber 2 and the flowing grain chamber 3 which are arranged side by side to close the gap between the two. Further, a frame-shaped casing 51 forms a roof portion 5 on top of the storage tank 4, and an equalizing device 6 is disposed on the top of the roof portion 5 for distributing the grains approximately evenly across the front and rear directions of the storage tank 4. ,
The upper discharge port of the elevator 7 is connected to the starting end of the screw conveyor constituting the equalizing device 6. In addition,
The equalizer 6 is eccentrically installed on the roof 5 above the drying chamber 2. Then, a storage tank 4, a drying room 2,
In order to easily connect the grain flow room 3, the grain collection room 1, etc. to each other, a required flange portion is formed on the supporting peripheral edge of each, and the flange portions are fixed with set bolts or clamps. Further, the lower part of the elevator 7 fits into the discharge port of one grain collection room 1 and also connects to the discharge port of the other grain collection room 1 via the transverse conveyor 9. This foundation feed conveyor 9 is provided with a hopper 10 for feeding grain. The discharge port of each grain collection room 1 is transported via the receiving port of the storage tank 4 and the conveyance mechanism. The one shown in Fig. 7 has a larger drying chamber, which serves as the base, in order to meet the diversification of demand. That is, the drying chamber 2a has four grain flow passages 26 and is large in size. Accordingly, the grain collection room la to be connected is also formed wide in the same way, and the bottom plate 12
Since the forehead slope of a cannot be changed, its height increases. Therefore, when the grain collection room la is juxtaposed with the grain collection room 1, a difference in height occurs. Therefore, the height of the grain collection room 3 and the storage tank 4 is set at a height corresponding to the difference between the case where the grain flow room 3 and the grain collection room 1 are stacked and the case where the drying room 2a and the grain collection room la are stacked. Storage chamber 4b connected between
has been established. Figure 8 shows the drive device for each rotary valve 16, 16a of the dryer. One chain is equipped with a knob, etc., and is wound around a sprocket fixed to the rotating shaft of all rotary valves 16, 16a. The rotation of these components is sequentially and intermittently controlled. Furthermore, in the embodiments of FIGS. 3 and 4, the drying chamber 2
The hot air path 2 of each drying room 2, 2 is stacked one above the other.
2 is passed through by a duct 81, and the elevator 7 is also higher than the one shown in FIGS. 1 and 2 by one drying chamber 2. As shown in each of the above embodiments, the circulation type grain dryer of the present invention has an upper storage tank, a grain flow room, and a grain collection room on the left side of a circulation drying section in which an upper storage tank, a drying room, and a grain collection room are stacked. It is designed to increase the processing capacity by integrally combining the circulating flow grain section with stacked grain chambers, and the circulating drying section alone can be used as an independent circulating type dryer. It is also possible to connect the circulating grain section to the right side of the circulating drying section, depending on the installation location and usage conditions of the dryer. Next, the operation of this invention will be explained. During drying work, grains (e.g. raw paddy) are
It is put into the storage tank 4 via the transfer conveyor 9, the elevator 7, and the equalizing device 6. If the rotary valves 16 and 16a are stopped at this time, the grains are initially deposited in the drying chamber 2 and the storage tank 4 above it, and eventually overflow over the branch body 42 into the flow bush chamber 3. Furthermore, the upper storage tank 4 is filled. After completing the predetermined amount of tensioning, remove the hot air generator 8 and rotary valve 1.
6, 16a, the screw conveyors 13, 13, the machine feeding conveyor 9, the elevator 7, the equalizing device 6, etc. are driven to circulate the grains and blow hot air through them for drying. now,
Assuming that the upper part of the drying chamber 2 is x and the upper part of the flowing grain chamber 3 is Y, the grains filled in X flow down, pass through the drying chamber 2 and come into contact with hot air, but the grains filled in Y Even if the grains flow down, they only flow down the grain chamber and do not come into contact with the hot air. Therefore, each rotary valve 16, 16a is constructed and operated with the following relationship. That is, it is desirable that the grains that have flowed down X and passed through the drying chamber 2 are always filled into Y when they are returned to the storage tank 4 through the grain collecting chamber 1. This is an essential consideration in order to prevent uneven drying of grains during drying or quality deterioration due to rapid drying. On the other hand, even if the grains that have flowed down the Y are to flow down the Y continuously again, there will be no problem in drying. Therefore, from the drying chamber 2 to the rotary valve 16,1
WX is the amount of grain discharged by 6a, and W is the amount of grain discharged from the grain flow chamber 3 by rotary valves 16 and 16a.
If Y, then WY needs to be at least larger than WX. By sequentially and intermittently rotating each rotary valve 16, 16a with a single chain, the relationship WY>WX is maintained, and the grains of WY move through the screw conveyor 13, elevator 7, and equalizing layer 6. The timing is set so that WX is discharged during the subsequent reduction on tin, and a portion of WY is filled into the depression of X corresponding to the discharged amount of WX, and then the WX deposited on tin flows into Y. Drive like you would. Therefore, the grain is
The material is passed through X and Y almost alternately, and drying and tempering are repeated intermittently to dry the material without degrading its quality. The grains that have been dried are transferred to the rotary valve 16,
16a, the screw conveyor 13, the cross conveyor 9, etc., and are taken out from the exit of the elevator 7. In addition, when assembling the dryer, the grain building room 1 or la prepared in advance, the drying room 2 or 2a, the flowing grain room 3, the storage room 4a or 4b, the storage tank 4, the roof part 5, and the equalizing device 6 are required. , elevator 7, etc., can be appropriately combined to configure a circulating dryer according to desired processing capacity and drying capacity. At this time, mechanically complex grain collection rooms 1 and la, drying rooms 2 and 2
a and the flowing grain room 3 with unified specifications according to a predetermined standard,
Since each product can be connected and assembled, it is possible to reduce production costs by standardizing parts, simplify assembly work by making parts lightweight, and reduce space required for inventory management at the distribution stage. Ta. (Accommodation tanks 4 must be prepared in the number of models according to the processing capacity, but since they are simply panels for storage, their volume is extremely small, so there is little impact.) [Effect of the invention 1 As is clear from the above description, according to the circulating grain dryer according to the present invention, a storage tank having a reception port at the upper part, a drying chamber and a flowing grain room connected in parallel to the lower part of this storage tank,
It consists of a grain collection room connected in series to both of these rooms, and a conveyance mechanism that connects the outlet of each grain collection room and the reception port of the storage tank, and is connected to the lower part of the drying room and the grain flow room. Each grain collection room has approximately the same height, top surface area, and internal structure, and can be connected to and separated from the drying room and grain flow room. The area of the chamber and the upper and lower surfaces are almost the same, and it is configured so that it can be connected and separated in parallel to the lower part of the grain collection room, so by appropriately combining each component unit, the desired processing capacity and drying capacity can be achieved. You can rough dry the dryer according to your needs. In addition, the multiple grain collection rooms, drying rooms, and grain distribution rooms are mechanically configured to be compact according to the specified standards, and the storage tank and conveyance mechanism are also built to stand up, allowing production by standardizing parts. Cost reduction and ease of assembly work are achieved. Furthermore, since each part is made into units, weight can be reduced, and transportation, storage management, etc. at the distribution stage can be streamlined, and other excellent effects can be achieved.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; FIG. 1 is a vertical cross-sectional rear view of the dryer as a whole, FIG. 2 is a front view thereof, FIG. 3 is a vertical cross-sectional rear view of a dryer according to another embodiment, and FIG. The figure is its front view, No. 5
Figure a is an explanatory plan view showing the configuration of the storage tank, b is an enlarged plan view showing the main parts of a, c is an enlarged perspective view of the main parts of a, and Fig. 6 a is only the circulation drying section Fig. 7 is a longitudinal cross-sectional rear view of the entire dryer of another embodiment, (corresponding to Figs. 1 and 3) Fig. 8 This figure is an explanatory front view showing the drive system of the rotary valve in the one shown in FIG. 7. 1, la... Grain collection room, 11... Casing, 12... Bottom plate, 13, 13a...
・Screw conveyor, 14...Top plate, 15...
・Outlet port, 16, 16a...Rotary valve, 2,
2a...Drying room, 21...Casing, 2
2... Hot air path, 23... Ventilation board, 24
...9E air duct, 25...ventilation board, 26
... Grain flow path, 3 ... Grain flow chamber, 31 ...
...Casing, 32... Information board, 34...
・Grain aisle, 4...Accommodation tank, 4a, 4b...
...Containment chamber, 41...Casing, 41a...
...Panel board, 41b...Reinforcement punch, 41c...Connection plate, 41d...Set bolt, 41e...
... Reinforcement plate, CR ... Clamp, 42. ．． ．．
．． ...Branch body, 5...Roof part, 51...
・Casing, 6... Evening device, 7...
・Elevator, 8...Hot air generator, 81...
...Duct, 9...Horizontal conveyor, 10...
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Claims (1)

[Claims] 1. A grain storage tank with a receiving port at the top, a drying room and a flowing grain room connected in parallel to the lower part of this storage tank, and a grain collection room connected in series to the drying room and flowing grain room, respectively.
Each grain collection room, which is connected to the lower part of the drying room and the grain distribution room, is composed of a conveyance mechanism that connects the discharge port of each grain collection room and the reception port of the storage tank, and the height, top surface area and The internal structure is almost the same, and the drying room and the flowing grain room can be connected to and separated from each other, and the drying room and the flowing grain room have almost the same height and upper and lower surface areas, A circulating grain dryer characterized in that it is configured to be connected in parallel to the lower part of a storage chamber and can be separated.