JPH02101376A - Drying frame for grin drying machine - Google Patents

Abstract

PURPOSE:To obtain good drying without adhering water drips to a wall surface by a method wherein a detouring duct, guiding hot air from the side of a burner to the upper side wall of a suction type air discharging fan, provided on the outer wall of a drying chamber so as to be communicated with one end thereof, is provided in the title frame. CONSTITUTION:A drying machine 6, a burner 4, a moisture sensor and the like are started by operating an operating device, hot air is generated from the burner 4 and the hot air crosses a drying chamber 2 and ventilates the same chamber 2 from a hot air chamber 12 through a detouring duct 5, the discharging port 7 of an upper hot air passage chamber 13 and a lower hot air passage chamber 34, then, is sucked and discharged by a suction type discharging fan 3 through an air discharging chamber 15. Grain, received in a reserving chamber 10, is exposed to the hot air and is dried while flowing down from the reserving chamber 10 through a grain flow down chamber 1 and the drying chamber 2 while the grain is delivered to the lower part of a delivery valve 14 and is supplied into a grain collecting trough 19. Thereafter, the grain is transferred and supplied from the grain collecting trough 19 into a grain elevator 26 through a grain supplying trough by a transfer screw provided at the lower part of the title machine.

Description

[Detailed description of the invention] Industrial applications This invention relates to a dryer frame for a grain dryer.

Conventional technology In the past, while the grains flow down from the second grain downstream chamber to the lower drying chamber repeatedly, the hot air generated from the burner crosses the drying chamber from the hot air chamber to exhaust the air. The grains flowing down the drying chamber are exposed to and dried by the hot air which is sucked and exhausted by the suction exhaust fan through the drying chamber, and the hot air is discharged once the grains are exposed. It was a dryer frame.

Problems to be Solved by the Invention While the grains are repeatedly circulated from the upper grain flow chamber to the lower drying chamber, the hot air generated from the burner is passed from the hot air chamber across the drying chamber, and the air exhaust chamber is The grains flowing down the drying chamber are then sucked and exhausted by a suction exhaust machine.
It is exposed to this hot air and dried.

During this drying process, if the grains to be dried have a high moisture content, water droplets may adhere to the wall surface of the grain flow chamber, and these water droplets cause the grains to flow down the wall surface. The purpose is to prevent this from occurring and to effectively utilize the hot air generated from the burner.

Means for Solving the Problems The present invention provides a grain dryer that performs ventilation drying while allowing grains to flow down from an upper grain flow chamber (1) to a lower drying chamber (2). A suction/exhaust fan (3) is provided on the outer wall in communication with one end, and the suction/exhaust fan (3)
The dryer frame has a structure in which a detour wind cylinder (5) is provided on the upper wall portion for detouring hot air blown from the burner (4) side to the drying chamber (2) side.

Effect of the invention While the grains are repeatedly circulated from the upper grain flow chamber (1) to the lower drying chamber (2), the hot air generated from the burner (4) is transferred from the hot air chamber to the rear detour wind barrel (5). The air is blown across the drying chamber (2) to the front through the ventilation chamber, and is sucked and ventilated by the suction and exhaust fan (3) on the lower side of the detour wind cylinder (5). The grains flowing down in the drying chamber (2) are exposed to this hot air and dried.6 Effects of the Invention According to this invention, the wall surface forming the grain flow chamber (1) is constantly warmed by the hot air. , water droplets do not adhere to this wall surface, which improves the flow of the grains and allows the grains to be properly dried without dry spots, and at the same time, this hot air can be used effectively. It became so.

Example In addition, in turning, grain drying is 4! The mechanism (7) of II f61 has a rectangular shape that is long in the front and back direction, and the front mechanism (7)
A burner case (9) containing an operating device (8) for starting and stopping the dryer (6) and a burner (4) is installed on the outer wall of the mechanism (7) on the rear side. The structure includes a suction exhaust fan (3) and a box-shaped detour wind barrel (5) above the suction exhaust fan (3). A hot air chamber 0δ is formed in the central part partitioned by each inclined plate (11) below this storage chamber (I11), and a hot air chamber 0δ is formed on the outside of this hot air chamber (11) in communication with the storage chamber (11). Each grain flow chamber (1) is formed with an upper hot air passage chamber (13) outside the grain flow chamber (1).
The two hot air passage chambers (13 at the rear end of the hot air chamber Oi5 and the detour air cylinder (5) are in communication with each other, and the hot air chamber (1) and the It is configured to communicate with the burner (4).

At the bottom of each grain flow chamber (1), there are formed drying chambers (2) which are partitioned with a ventilation net and communicated with this grain flow chamber (1). It has a structure in which a feeding valve (to) that freely feeds and flows the grains is mounted on a shaft, and a ventilation chamber (19) is formed between the inner sides of these drying chambers (2). ) A lower hot air passage chamber (b) is formed on the outside.

An upper partition plate +IQ is provided between the lower hot air passage chamber (B) and the upper hot air passage chamber (13), and each discharge port (m) for discharging hot air is provided in this upper partition plate (IB), and each The discharge port (■ has a configuration in which it is formed gradually wider from the rear side to the front side, and this exhaust chamber +19 and the suction exhaust fan (3) are communicated with each other.

A lower partition plate (11) is provided at the bottom of this lower hot air passage chamber i13, and a grain collecting mtq equipped with a transfer spiral is formed below each softening chamber (2) and is communicated with the lower partition plate (11). The mechanism (7) on the rear side is provided with a motor 00, and this motor D operates the respective delivery valves 04 and 1 (the transfer spiral in Fl and the suction/exhaust air ll!+3). It is configured to rotate and drive.

A transfer @ ell equipped with a ceiling plate (to) and a transfer spiral is provided on the upper side of the storage chamber (11), and this transfer 4i1 (2+
1 is configured to be attached to the ceiling plate (toward) so as to be rotatable in the left and right direction, and the starting end of this transfer @ 2+1 is provided with a protrusion that protrudes upward for a predetermined length, and one side of this protrusion is provided. The side is provided with an opening Qδ, and the center of the bottom plate is provided with a supply port for supplying the transferred grains into this storage chamber (11), and below this supply port is provided with a diffusion plate Q4 and a rear part of the diffusion plate Q4 and this diffusion chamber G13. It has a configuration in which a full amount detection device 4 is provided on the side.

The grain raising function is provided in the front part of the mechanism (7) on the front side, and a packet conveyor (5) belt is stretched between the upper and lower pulleys inside, and the upper end and the protruding part (company) of the transfer 4ii2T1 are connected to each other. The opening (27J) is connected by a fitting (2) so as to communicate with the opening (27J), and a supply &14 is provided between the lower end and the terminal end of the grain collection gutter (1) for communication. A motor (to) is installed on the upper part of the kiln, and this motor (
to) the packet conveyor (5) belt, the transfer Ial
121) in which the transfer spiral and the spreading plate 94, etc. are rotatably driven, and the vertically central portion receives grains that fall during conveyance to the upper part at the mouth of the packet conveyor. The structure includes a moisture sensor 03 equipped with a motor that detects the moisture content of the crushed grains at the same time as the grains are crushed under pressure.

Hereinafter, the operation of the above embodiment will be explained.

Dryer (6) by operating the operating device (8).

The burner (4), the moisture sensor (g), etc. are started, and hot air is generated from the burner (4), and this hot air flows from the hot air chamber 0 to the detour air cylinder (5) and the -1-hot air passage chamber (11). Discharge port (
r71, cross-ventilates through the drying room (2) via the upper hot air passage room (B), is sucked into the ventilation chamber (through 19 and is sucked into the drying room *f3), and the grains stored in the storage room fl (I are , the grains are exposed to this hot air and dried while flowing down from this storage chamber fl (I) to the drying chamber (2), and then the grains are dried through the delivery valve (
The grain is sent down to the lower part and is supplied to the collection gi4ii (I! The packets are supplied and transported to the upper part by the packet conveyor (5) to the transfer gutter?
1), from the transfer gutter) onto the diffusion plate 24 by the upper transfer spiral, and in this diffusion plate (21), it is evenly diffused and returned to the storage chamber (11), and is circulated Kfa. When the moisture sensor 03 detects the same grain moisture as the finishing target moisture, the operating device automatically controls 8) to automatically stop the dryer (6).

During this drying operation, each inclined plate (11) forming the grain flow chamber (1) is heated by being exposed to hot air from the inside.

The grains are dried while flowing down on each of the heated inclined plates (10).

[Brief explanation of drawings]

The drawings show one embodiment of the present invention, in which Fig. 1 is an overall side view of the dryer that can be partially cut away, and Fig. 2 is an A-A in Fig. 1.
Cross-sectional view, Figure 3 is a BB cross-sectional view of Figure 1, Figure 4 is a cross-sectional view of Figure 1.
The sectional view taken along the line CC in the figure and FIG. 5 are partially enlarged perspective views. In the figure, (1) is the grain flow chamber, (2) is the drying chamber, and (3
) indicates a suction haiku machine, (4) indicates a burner, and (5) indicates a detour wind cylinder.

Claims (1)

[Claims] In a grain dryer that ventilates and dries grains while flowing them down from an upper grain flow chamber (1) to a lower drying chamber (2), the outer wall of the grain is connected to one end of the drying chamber (2). A suction/exhaust fan (3) is installed on the upper wall of the suction/exhaust fan (3) to send hot air blown from the burner (4) side to the drying chamber (2).
A dryer frame provided with a detour wind cylinder (5) for detouring to the side.