JPS62112904A - Combustion air suction device for grain drying burner - Google Patents

Abstract

PURPOSE:To make a superior gasification of fuel and enable a stable combustion to be performed in a burner by a method wherein when an amount of surrounding air is increased, means for resistance is arranged at a suction port to decrease a pressure at the suction port and an amount of air to be sucked is decreased to lower than a predetermined amount of air. CONSTITUTION:A semi-circular resistor 43 is fixed on a suction cylinder 6, a cylindrical discharging resistance cylinder 44 having a discharging part of small diameter of an ventilation cylinder 5 is arranged near a front part of a suction port 7 of the suction cylinder 6. When a density of the grains flowing down in a driving chamber 15 during a drying operation is made rough, an amount of surrounding air passing within an ventilation cylinder 5 around a burner 10 is increased and a pressure at the suction port 7 is decreased under an influences of the resistance 43 and the discharging resistance cylinder 44. An amount of air for combustion to be drawn through the suction port 7 is decreased to lower than a predetermined amount of combustion air set and stored in a control device 49 and then this decreased amount of combustion air is supplied. Due to this fact, even if a burner 10 is cooled with the increased amount of surrounding air, it may always show a stable combustion.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an air intake device for combustion in a burner for a grain dryer.

Conventional technology Conventionally, fuel was supplied from 16 fuel tanks.

Combustion air from the blower is supplied to the inside of I, and in this KoM cylinder, Yan Yancho is vaporized. The combustion flame becomes hot air, and the heated air and the outside air passing through the burner part combine to form drying hot air that dries the grains, but the amount of outside air passing through the bar is It was a device in which the jet port for ejecting 1M combustion flame and the suction port for sucking in the combustion air supplied from the blower were the same.

The IFI problem that is being solved by the fuel supply *Fuel is supplied from the cylinder to the rotating expansion cylinder, and the amount of fuel supplied is 6. At ^, the fuel is completely vaporized, and this vaporized fuel is ejected from the jet nozzle and burns, becoming a combustion flame. The grains in the drying area are exposed to the drying hot air and the grains are dried.At the start of this drying crop 1#, the grains in the drying area are Density is a phase, but it becomes denser as drying progresses, and as a result, the wind movement of the outside air passing around the burner fluctuates, and due to this fluctuation in the amount of outside air, the burner is able to properly match the fuel. Even if combustion air is supplied, when the outside air flow rate increases, the burner will be cooled by the increased outside air flow,
The vaporization of the fuel is not as expected, and as a result, the combustion state becomes lifted, and the combustion state of the burner becomes unstable.

Means for Solving the Problems This invention comprises a diffusion tube (2) which is guided and diffused by the rotation of fuel supplied from a fuel supply IIh device (1), and combustion air is introduced into this diffusion tube (2). A blower (3) for blowing air is provided, a spout (4) is provided for vaporizing the fuel in the diffusion tube (2) and ejecting and burning the vaporized fuel, and the blower (3)
The suction tube (6) that sucks the combustion air at (7,
)/ill is installed in the ventilation tube (5) through which air is introduced, and this ventilation reduces the pressure in the suction part (7) by increasing the outside air passing through the inside (5). The combustion air suction device for a burner for drying hot grains, which is provided with a pressure drop, causes the combustion air sucked through the suction port (7) fl to be lower than the set combustion air amount. do.

Effect of the invention Diffusion cylinder (2) rotating from the fuel supply fIh device 21 (1)
Fuel is supplied into the combustion chamber, and a predetermined amount of combustion air commensurate with this air supply is sucked in from the intake tube (6) through the intake tube (7), and is sent to the cylinder (3). l (2)
the fuel is vaporized within the diffusion tube (2);
This vaporized fuel cap is ejected from the jet 1 (4) and burns to become a combustion flame, this combustion flame becomes hot air, and this hot air is mixed with the outside air passing through the hole (5) surrounding the burner v4. This becomes 8jIL for drying, and the grains housed in the drying lantern are exposed to this drying hot air while repeating Ili rings and dried.

This dried product! If the density of the grains stored in the drying side is the sum, the amount of outside air passing through the ventilation tube (5) with a diameter of 10 mm increases, and this amount of outside air increases. S
In this case, a smaller amount of the combustion air ♀ than the amount of JII specified by the JII specified by the supplied IIh fuel is inhaled from the suction port (7) of the suction cylinder (6) and flows into the air flow chamber. (3) and the burner fires.

Effects of the Invention With this invention, when the amount of outside air passing through the ventilation tube (5) of the two-burner Jll is added to #I, the diffusion tube (2)
For example, if the amount of combustion air is smaller than the amount of combustion air set corresponding to the amount of fuel supplied to the engine.

In the 11th series, measures such as installing a resistor in the suction port (7) of suction # (6) or reducing the diameter of the discharge portion of the ventilation 1m1 (5) near the front of the suction port (A) were taken. and the inlet (7)
) I am reluctant to lower the pressure of m.

The amount of combustion air sucked from this suction r1 (7) is Ui
The amount of Kosaki air at R constant will decrease by a lot.

Therefore, even if one burner is cooled by the increase in the amount of outside air, the amount of combustion air is decreased from the setting.
The fuel 1 is vaporized well, and the burner always burns in a stable state.

Example 1. In the illustrated example, the drying It (8) is drying (9)
The vTIa has a long rectangular shape in the front and back direction, and consists of a front S jet plate and left and right wall plates, and a box-shaped ventilation pipe (5) is provided on the slope of this IvI wall, and this four-piece wind pipe (5) has a burner (io)
It also has a built-in operating device for starting and stopping the drying process (8). 1 (11)
A rising shell (12) for conveying the grains to the upper part is provided in the 1alv plate bent part, and the rear wall &? One samurai in the domain (13)
), and the relevant? At the lower part of (9), there is a built-in grain collecting trough (14) with a built-in transport function.
Drying chambers (15) and (15) are provided on the upper side and communicated with each other, and the lower portion of the drying chamber (15) and (Is) is equipped with a powder valve (111) for feeding and flowing down the grains, and a valve (1B) 111.
(16) is pivotally supported, and the drying chambers (15) and (1
5) A hot air chamber (17) is formed inside, and this hot air chamber (17) is formed inside.
17) and the burner (IO) are in communication with each other, and between the outside of the drying chamber (15), (15) and the left and right wall plates are ventilation chambers (18'), (LEJ ),
This ventilation chamber (18), (1,1) and A [jt machine (13)
It is a configuration in which the burner (10) is connected to the
IIF! There is a configuration that allows more outside air to be taken in.

1 side dry smoke room (15), (15) J2 side storage room (19)
) is formed on the i side of this storage chamber (19), which is equipped with a built-in transfer spiral, and also includes a transfer gutter (20) and a ceiling plate (2I).
a(i i, 1. A supply port for supplying the transferred grains into the storage chamber (19) is provided in the center of the transfer gutter (20),
A diffusion 1i (22) for uniformly dispersing grains into the storage chamber (19) is installed in the do part of this (1) feeder 1, and a motor (23) is installed in the rear wall plate f part. A motor (20) is installed on the top of the shell lifter (12), and the motor (23) operates the transfer spiral in the grain collecting trough (eye), the delivery valve (1B), (+6)
and the tiller (13) etc., and the motor (24)
) in the transfer trough (20), the transfer spiral (12) in the transfer trough (20);
) and the packet conveyor (25) in the w1 distributed IB (
22) etc., and the hot air chamber (17)
・A hot air temperature detection sensor (2B) for detecting the hot air temperature in this hot air chamber (17) is installed on the inner wall of the rear wall plate.

The burner ('10) if the ventilation 1 (5) inside the plate 1V
The burner (lO) is attached to a receiving board (27) that protrudes upward from the front wall, and the burner (lO) is equipped with a cylindrical blower tube at the rear that blows combustion air and has an open 1'1ill center part between the front and rear wall plates. (28
) is provided in this blower IFl [(2B), a diffusion cylinder (2B) is provided.
) is provided with a motor (29) that rotationally drives the
(28) A combustion tube (30) with an open center is provided on the front wall plate. 2 A conical guide width (31) with an open tip is provided in the open 1J portion of the combustion tube (30). Combustion # (30)
There is a nozzle hole (3) where -g of vaporized fuel is spouted near the outer circumference
2), a spout tf& (33) having an opening in the center and an inclined part #I #4 inward, and this spout cylinder (3
3) and the combustion tube (30), a passageway (34) through which the vaporized fuel passes is formed in the fourth part of the combustion tube (30), and the combustion tube (30)
30) Install an ignition heater (1) near the outer periphery to ignite the fuel.
35) is installed in one configuration.

A flying gauze body (37) that receives the fuel supplied from the 1" fuel nozzle (36) at the end of the motor (29) shaft and causes it to rotate and fly, and the spreading along the guide ll11 (31). Tube (
2) [After arriving at 1llJ, this diffuser tube (2) has a shape like a tip, with the 1"161 section folded in the direction of the outer periphery, the outer periphery of the tip expands into a conical shape, and the m end has a small diameter circular curve. This small diameter cylinder,
fl[] and the enlarged diameter part, and the enlarged diameter part and the inclined #1 portion of the ejection tube (33), there is an ejection where vaporized fuel is ejected and burned.
There is a possibility that Al1 formed 4').

A #l material tank (3B) is installed in the front of the dryer (8).
The ventilator (5) is equipped with a fuel supply system on the outer side of the lower plate.
1'), and a fuel hose (
39) and sucks fuel into the fuel supply device W(1),
The fuel supply device (1) supplies this fuel to the fuel supply pipe (4).
0), 1 insect spray through the fuel nozzle (36) (
37'') and 1-.

Combustion air is supplied by rotating a blower (3) provided on the outer side of the lower plate of the ventilation tube (5) with a blower motor (41), and passing the ventilation tube ( 5
) Inhale from the suction port (7) of the suction cylinder (6) that protrudes into the inside of the air blower (3).
28) ff1l with the opening of the rear wall plate i! I
! The ventilation tube (211) passes through the adjacent ventilation duct (42)
It is a 4111 hole that blows air inward, and 1- of the suction cylinder (6).
A T-circular resistor (43) is fixed to the side, and the suction cylinder (
The ventilation tube (5) is located near the front of the suction ty (7) of 6).
Cylindrical discharge resistance # (44'
), and when the outside air passing through the ventilation tube (5) increases, the pressure at the suction port (7) fl decreases17,
The combustion 111 air intake sucked from this intake r+ (7) is configured to decrease from the set combustion air amount.

The imitation device (11) is box-shaped and has a start switch (45), a stop switch (4e), a hot air knitting setting wax (47), and a timer gourd (48) on one surface plate. is an Al6 structure equipped with a control device (49), and this control device fi (49) is connected to each switch (45'),
The configuration is such that the operations of C48> and the above-mentioned 6 pronunciations (47) and (4111) are input, and the detection value detected by the hot air 111F detection sensor (28) is A-Dll converted and input. And this control @ device (48
), each of the motors (23), (2,4'), (2
9) and (41) are configured to control starting and stopping, etc., and the fuel supply system El (1) is controlled by #h operation and stop l.
: and the fuel #4I taken in by this fuel 114 supply device (1)
This is a configuration for kt-change control.

When the control device (49) operates the hot air temperature setting paper (47), the hot air temperature set and stored in the control device (48) is selected, and the hot air temperature is adjusted so that the set hot air temperature is reached. The detection sensor (2B) is connected to the hot air chamber (I7).
2. Detect the hot air temperature within ) 2. Compare this detected hot air temperature with the set hot air temperature, and if they are different, control the fuel supply device (, 1) so that the temperatures are the same, and 2. At the same time, the amount of fuel f14 supplied to the burner (10) is changed and controlled by the fuel supply device (1), and at the same time, the amount of fuel f14 supplied to the control device W1 (4+1) is set and stored for the combustion purpose. This is a configuration in which air is supplied.

Each page of the operation device 211 (II) ((7) , , (4
, [I) and by operating the start switch (45).

When the dryer (8) starts, D41! f, burner (10
) is energized to the ignition heater (35), and the ignition heater (35) is energized.
35) becomes red hot, and the fuel t1 flows from the fuel fuel tank (38) through the fuel hose (39).
1), and from this fuel supply device J(1) the fuel 4
The supply In (40) and the fuel nozzle (3G) are injected and supplied to the outside am of the flying object (37), and this flying object (37
), this fuel is scattered to the 1F part inside the diffusion cylinder (2), and while flowing down the inner wall part of the w1 scatterer (2), it is ejected from the small gap in the Φ6 part of this 1^★ information (2), and this ejected A part of the fuel splashed onto the red-hot large heater (35), causing r! ! P+M combustion starts.

This combustion expands /8! The tube (2) is heated, and the fuel 1 in fItF is vaporized in the diffusion tube 1 (2), and the vaporized fuel and the rotation of the air blower $1 (3) cause the suction v4 (6
) is inhaled from the suction port (7), and this 11L machine (3)
Combustion air blown from the ventilation duct and g (42) into the ventilation tube (28) is ejected from the two locations of Wr111 + (4) and the nozzle (32) and burns, becoming a combustion flame. ,
This combustion flame becomes hot air, and this hot air and the bar (lo
) w4jll ventilation 11i (5) The outside air passing through the interior mixes with the hot air for drying, and this hot air for drying is sucked by the air vent (I3), so that the air flows from the hot air chamber (17) to the drying chamber ( I5) is ventilated through the ventilation chamber (I8), sucked and exhausted at the wind vent 3), and is then sucked and exhausted into the storage chamber (1) of the dryer (8).
9) The grains stored in the storage chamber (1 g) are exposed to the drying hot air while flowing down in the drying chamber (I5) and are dried, and then sent to the lower part by the delivery valve (1, 8). The grains are fed out by the lower transfer spiral and are transferred and supplied into the shell raiser (I2) via the grain collecting tank (10), and transported to the upper part by this shell raiser (12) and supplied into the transfer gutter (2o). 2 The transfer spiral inside this transfer gutter (20) expands Wl (22) through this transfer gutter (20).
Transferred to the top and expanded to the top III' (22) -c'
UIF? ili [(II) y; When the I ring is dried and the time set in the timer arc (4 days) has elapsed, the control device W of the operating device 1 (11)
(49) to automatically stop the dryer (8).

During this drying process, when the density of the grains flowing down in the drying chamber (15) becomes coarse, the outside air passing through the ventilation tube (5) around the burner (I0) increases. When this outside air wind increases, the resistance element (4) on the upper side of the intake vl (6) increases.
3) and the suction port (7) #J1 has a discharge resistance cylinder (
44), the pressure at the suction port (7) decreases, and this pressure decrease causes the suction port (7)! The amount of combustion air taken in is decreased from the set amount of combustion air that has been set and stored, and the decreased amount of combustion air is supplied,
The burner (io) burns.

When the outside air wind increases, the burner (10)
Since the amount of combustion air supplied into the burner (10) is decreased from the set amount of combustion air, even if the burner (10) is cooled by the increased outside air, the amount of combustion air is reduced. Therefore, this burner (10) always burns in a stable state.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention: Fig. 1 is an enlarged sectional view of the steamed bun, Fig. 2 is an enlarged front view, Fig. 3 is a side view of the dryer, and Fig. 4 is a partially sectional front view. Figure 5 is an enlarged front view of a portion of the dryer. In the figure, code (1) is the fuel supply equipment, and (2) is the diffusion shaft 2.
(3) is the ventilation pipe, (4) is the spout, (5) is the ventilation end, (
6) shows the suction tube, and (7) shows the suction port.

Claims (1)

[Claims] A diffusion tube (2) that guides and diffuses the fuel supplied from the fuel supply device (1) by rotation, and a blower (3) that blows combustion air into the diffusion tube (2) are provided. )
A spout (4) is provided to vaporize the fuel in the interior and eject and burn the vaporized fuel, and the suction port (7) of the suction pipe (6) through which the air for combustion is taken in by the blower (3) is connected to the outside air. is installed in the ventilation tube (5) into which the ventilation tube (5) is introduced.
Pressure reducing means for reducing the pressure at the suction port (7) due to an increase in the outside air passing through the interior, thereby reducing the amount of combustion air taken in from the suction port (7) from a set amount of combustion air. An air intake device for combustion of a burner for a grain dryer.