JPS58178107A - Vaporizing burner - Google Patents

Abstract

PURPOSE:To simplify a structure and to miniaturize a device, by a method wherein a motor for turning a heating bowl and a variable speed motor for rotating a blower are located within a blast duct and facing in opposite directions. CONSTITUTION:A motor 17 for turning a heating bowl 20 and a variable speed motor 31 for rotating a blower 34 are located within a vertical blast duct 12 and facing in opposite directions, a rotary shaft 33 of the variable speed motor 31 is protruded backward horizontally, and the blower 34 is mounted to the rear end thereof. The blower 34 is positioned at the rear part of the blast duct 12, a vertical suction port 36 is formed in the rear end of the blast duct 12 which is surrounded with a U-shaped suction duct 42 being open at its front end. A suction path 43 is formed between an inner surface of a suction duct 42 and an outer surface of the blast duct 12, and the suction duct 42 is hung down at the inside of a ventilator 9. This prevents the occurrence of unexpected extinguishment even if a blue flame is dimished in size, permits planning of a device with a minimum capacity, and provides an excellent combustion.

Description

[Detailed description of the invention] The present invention relates to a vaporizing burner.

The vaporizing burner of a conventionally known drying device is, for example, a kerosene supply device as described in Japanese Utility Model Application Publication No. 55-64622. The kerosene supplied by 'J was rotated and stirred in a rotating heating bowl, and a portion of the air flowing through the ventilation pipe was used as the combustion air.

This configuration causes the following defects.

1!11 At least 1 to 2 centimeters per 1 ton of unhulled rice should be kept in the ventilation section of the circulation-type humidity-controlled grain drying device.
Since there is a strong wind called Suu C, if we use the above configuration, oil 1. When you turn down the i to make the flame smaller, the wind may be too strong and cause a misfire. To overcome this deficiency,
Even if it is a one-digit vaporizing burner that can be installed inside the ventilation tube,
Instead of using the air flowing through the ventilation tube as combustion air, a separate blower rotated by a variable motor could be installed to send combustion air commensurate with the amount of kerosene.

As described above, the present invention simplifies and miniaturizes the structure of the vaporizing burner in the case where the blower rotated by the fan-shaped motor is provided separately from the fan that creates the wind flowing inside the ventilation tube. At the same time, the air pressure at the intake port of the blower and the air pressure at the flame outlet are made approximately equal to ensure stable combustion.

In the present invention, a motor that rotates a heating bowl and an NF variable motor that rotates a blower are installed back to back in a horizontal cylindrical blower cylinder, and the rotating shaft of the variable motor is horizontally protruded backwards and attached to the rear end. Install the blower and turn the blower fd
AiJ: Place the air blower cylinder in position 1a and open the suction 11 perpendicular to the rear end of the air cylinder; The structure of the vaporizing burner is such that the suction tube is surrounded by a tube, a suction passage is formed between the inner surface of the suction tube and the outer surface of the blow tube, and the suction sieve is suspended within the blow tube.

To explain with a diagram, (1) is the first
The tank is a humidity control tank (the bottom part of the tank (+1) has a leakage of +12
1 (formed in 2H, the lower end of the leakage chamber +21 +21 is connected to one end of the downstream drying chamber +31 +31).

The example includes a control gamma 11F tank (1) and a flowing drying chamber (3).
) or shown as an integral type, or the tank (11
The drying room (3) and the drying room (3) may be separate models, and the two may be connected by an elevator or the like. In the embodiment diagram, a hot air supply chamber (4) is formed between the pair of left and right drying chambers [31+31, and a hot air exhaust chamber f51 (51) is formed outside the drying chambers +31 and +31, respectively. A rotary valve (6) (6) is attached to the lower end of the drying chamber (31) to adjust the amount of grain falling.
The lower side of the +61 is surrounded by the central part or the lowest support gutter (surround it with force), and the screw conveyor (8) is installed horizontally on the upper surface of the center of the sword, and the conveyor (8) The sent grains are lifted by an elevator (not shown) and returned to H of unhulled rice in the tank (1) and two kinds of J.
The ■-■ cross-sectional view in the figure is Figure 2, and the hot air supply'\(4)
A ventilation pipe (1) is provided at one end, and a hot air exhaust chamber (5) is provided.
)(5) The other end, the discharge side, has an exhaust illumination.
] Get kicked. When the r fan (Ill is not installed in the exhaust pipe 001) rotates, hot air is circulated as shown by the arrow in FIG. The fan θυ is very powerful and is capable of sending at least 1 to 2 i/ee of air per ton of unhulled rice. A vaporizing burner as shown in FIG. 3 is installed inside the horizontal cylindrical ventilation tube (9). At the center of the ventilation tube (9), there is a horizontal tube O3, which has a much smaller diameter than the inner diameter of the ventilation tube (9). It is suspended from the provided 1 [8 tool 03).

The blowing cylinder O2 is a horizontal circle, and a small diameter portion formed thinly is cut out on the l111 side.

0! i) is the 11 part between the tips of the small diameter part circle. Air blower (1)
2) A vertical mounting plate 06) is provided inside the mounting plate 06).
A blower tube (motor 07, which has a much smaller diameter than IZ) is fixed to the rear center of 0. Tori (= J board tllil
A plurality of through holes θ& are bored in the portion between the motor Q71 and the feed tube A21. The rotation axis 0 value of the motor 0η extends horizontally forward from the center of the small diameter part α4 and extends to the tip opening 09.
The heating bowl (A) is fixed to the tip of the bowl. The heating bowl (A) has a shape with its mouth facing backward (that is, toward the motor 071), and surrounds the outer periphery of the small diameter portion Q41 with a gap CD formed over the entire circumference. At the bottom of the heating bowl (a) at the tip of the rotating shaft load, a conical portion (diffuser) 03 is attached which gradually becomes larger in diameter as it reaches the bottom of the heating bowl (j) (as it goes forward).

C131 is an oil supply device, and the pipe extends forward inside the small diameter section (2), and its tip is opened at the conical section C2Z1. The base 041 of the small diameter part [141 is the blower tube O
It is fixed to the front end of 3., or it is fixed there so as to sandwich the base of the outer cylinder C25+. The outer cylinder 051 tightly surrounds the outside of the heat bowl circle. A connecting air sieve (2) is completely fitted into the rear part of the air tube u3. The rear end of the blower tube has an opening 11 in a truncated shape to form an opening 11, and the connecting portion of the connecting blower tube ω is formed to have a slightly larger diameter than the shape [ ] part t27). Insert the C hole and attach it to I by the screw. A vertical mounting plate C row is fixed inside the connecting blower tube (to), and a variable motor ELL is attached to the center of the front surface of the mounting plate F4 (00). Use motor C (
f) is also smaller in diameter than the inner diameter of the air blowing cylinder, and a ventilation passage C33 is formed around it. use motor ell
+ is placed back to back with the motor surface, and its rotational axis C is aligned with the rotational axis u9 of the motor 07). It protrudes toward the rotating shaft 011, and a blower C34) is fixed to the rear end. The blower C (4) is located inside the connecting blower tube, its rear part is surrounded by a vertical rear wall, and the intake UI CMR is opened at the center of the rear wall (51). θD is the gasification chamber, (effect is the combustion plate, G9 is the ceramic heater 1 (40 is the combustion chamber. suction cylinder (surrounded by 4'lr. Suction cylinder t4
A suction path (to) is formed between the inner surface of the air blower 2 and the outer surface of the air blower tube O2 and the outer surface of the connecting air blower tube O2. Therefore, the 9th station is a stay that connects the air blower @O2 and the suction cylinder +C7J, and the suction cylinder (42) is lowered by 111 points using the +15 tool 0'5.

Next, we will discuss the effect.

The diagram may be omitted, or if undried rice is supplied to the loading port of the elevator, the undried rice is fried by the elevator and supplied into the humidity control tank (+1), and falls through the tank under its own weight and flows. 1 drying room +31 +31, leakage S1 (21 (2) and 1ml tank (1) - - cup.In this condition!So turn on the switch, inside the exhaust air o aha The motor that rotates the attached fan (11) is energized and the fan 0υ is rotated at a furious speed,
At least 1 to 2 m'/"C or more per ton of paddy
- Supply drying air. Also, the variable motor (ID) of the heating (motor 071 that rotates the destination and the blower 04) is also energized to rotate the heating bowl C2 and the blower C341.

Therefore, the 1 oil supplied by the 1 oil supply device c231 is supplied to the conical portion C which rotates at 2500 revolutions per minute! 'b (
When it is heated, it is agitated by centrifugal force and reaches the inner surface of the heating example (a), where it is violently agitated and the gap 12
It becomes like fog within +1. iJ Henmo Motor C31 there
A view of the air intake path caused by the blower Ga rotated by
Suction [1+3fi+-Ventilation passage W-Inside small diameter part O4-Gap (
20 and 14 of kerosene. The kerosene that has turned into mist is gasified and the air is blown into the gasification chamber C17.
1, it becomes a completely mixed gas and is injected from the combustion plate (end) to the combustion chamber (41) outside (front).Therefore, if the ceramic heater OI is energized, it can be easily ignited like ordinary gas. Therefore, the flame makes the outer surface of the heating bowl red hot.Then, the kerosene in the gap Cυ on the inner surface of the heating bowl becomes more and more actively gasified, and finally turns into a blue flame that is too hot to burn. It is something.

Therefore, hot air with blue flame is supplied from the hot air supply chamber (4) to the down-flow drying chamber +31 +31 to dry the grains.
Unlike traditional red flame, it does not reduce grain quality. The dried grains are dropped little by little into a receiving gutter (71) by the rotation of a rotary valve (61f61), collected by a screw conveyor (8), lifted by an elevator, and placed in a humidity control tank (1). 1, this circulation drying is done 5
If you repeat this process about 6 times, the unhulled rice will become completely dry. When carrying out such work, if there is a difference in the variety or quality of the grain, or if the outside air becomes abnormally high, a small amount of blue flame may suffice, so reduce the amount of H-colored flame. It turns out. Even if the +r flame is made small in this way, the combustion air of the present invention is
Since it is sent by a special blower Cl4) that is rotated by the air, it will not disappear. Also, Book 5e Akira's blower (, 3.1)
Since the air sent in passes around the two motors 071 C1l+ and reaches the casing chamber C17), both motors 071 Cil+ are cooled at that time. Also, looking at the relationship between the combustion chamber of Moku Kaimei (4 (υ) and 1 suction 1'' (peng), the suction port side is a U-shaped suction iJ (since it opens at the bottom of 4Z) , the air flowing through the ventilation pipe (9) does not act on the suction port (361), so that the static II of the flame discharge [1 and the suction port (to) is approximately equal, so that smooth combustion occurs. , it is possible to form a uniform gas mixture.

Conventionally known grain drying apparatuses include, for example, the Japanese Utility Model Application Publication No. 55-646.
As described in Publication No. 22, a fan (OD of the embodiment of the present invention or this (applicable) was also used. That is, a part of the air passing through the ventilation tube was used to cause combustion in the vaporizing burner. With this kind of structure, when the flame was made small, strong winds hit the flame, so there was a risk of a misfire.

However, in the present invention, the motor 07) that rotates the heating bowl (to) and the variable motor c31) that rotates the blower (2) are placed back to back in a horizontal sieve-shaped blower tube oz, and 1)
11 The rotating shaft Oj of the river motor (31) is made to protrude horizontally rearward, and a blower (34) is attached to the rear end, and the blower C1l is located at the rear of the blower tube Oz Ai, and the blower tube (1 force A vertical suction port (36) is opened at the rear end, and it is surrounded by a U-shaped suction sieve (T42) with the end open. One inlet passage (G) is formed between the tube (1/l) and the suction sieve (4) is suspended in the ventilation tube (9), so that blue flame is generated. No misfire will occur even if the CO
Since the motor OD that rotates the C34) and the single motor Oυ that rotates the blower 34) are installed back to back, it is possible to design with the minimum volume, as well as the blower C341.
This has the effect of cooling both motors (n CID) with the air flow.Also, in the present invention, the suction port of the blower C141 is opened at the bottom of the U-shaped suction tube T42.
The static pressure between the intake port (1) and the combustion chamber (4G is approximately equal,
Burns well.

Therefore, the combustion control of the vaporizing burner is simple, and since the flame and air mix well, the temperature distribution is improved.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional front view of the grain drying apparatus, FIG. 2 is a -1 sectional plan view, FIG. 3 is a sectional view of the inside of the ventilation tube, and FIG. 4 is a right side view of FIG. 3. Code explanation tll Humidity control tank, (21 funnel, (,3)
Flow F type drying room, (4) hot air supply room, (5) hot air exhaust room, (6) rotary valve, (7) receiving gutter, (8) screw conveyor, (11) ventilation pipe, (101 ventilation pipe) , old) fan, 0 power
Blower tube, 031-tll tool, U small diameter part, 05
) Between the tips [] part, (16) Mounting plate, +171
Motor for heating bowl, (1) Through hole, UV rotating shaft,
(2α heating bowl, C!1) gap, so conical part, c! , Il 1 oil supply device 6, C14)-
Base, C9 outer cylinder, (26)・Connection blower tube, t27+
Opening, C81 connection, C29) screw,
) Plate, C31) Use motor, C(3
・Ventilation duct, 0ta Rotating shaft, 04) Blower, 09
-Rear wall, (G)・Suction [], c37)・Gasification chamber, (To)・Combustion plate, 6I Ceramic heater-1+
41 Combustion chamber, (4υ...opening, +4a-suction cylinder, -suction passage, (44) stay. Patent applicant Iseki Agricultural Machinery Co., Ltd.

Claims (1)

[Claims] The motor that rotates the heating bowl and the motor that rotates the blower are installed back-to-back inside the horizontal cylindrical blower cylinder.
The rotary shaft of the variable motor projects horizontally rearward, and a blower is attached to the rear end thereof, and the blower is located at the rear of the blower tube, and a vertical suction port is opened at the rear end of the blower tube. is surrounded by a U-shaped suction tube whose front end is open, a suction passage is formed between the inner surface of the suction tube and the outside 11fI of the blower tube, and one suction tube is installed inside the ventilation tube. vaporizing burner.