JP2003054747A - Crush chip force-feeding booster device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a booster device capable of keeping long-distance transport without being influenced by compressor performance of a chip scattering vehicle even if a property or gravity of chips, when a low capacity compressor of a PTO driven chip scattering vehicle is forcedly sent by hose as a pressurizing air source. SOLUTION: An introducing cylinder 20, a nozzle inner cylinder 23, and an outer cylinder 33 screwed in the inner cylinder to be adjusted in position are assembled so as to make inner diameters thereof same. An annular clearance 25 is formed between an inner cylinder base portion 24 and the introducing cylinder, and an annular nozzle clearance G is formed between an inner cylinder tip nozzle portion 29 and an outer cylinder inner wall. The nozzle clearance is adjusted by rotations of the inner and outer cylinders.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a booster device for pressure-feeding crushed chips with a pressurized gas, and is particularly effective when it is used when the specific gravity of the chips fluctuates greatly.

[0002]

2. Description of the Related Art In the case of crushing coarse chips stored in a chip spraying vehicle and spraying them to mountains and the like, when the chips are dry and the apparent specific gravity is 0.2 / cm ³ or less and light, the present inventors propose Buster device (Fig. 7, Japanese Patent Application No. 2000-65780,
It can be sprayed within a radius of about 100m from the sprayer using the device in Fig. 9), but if the tip is wet or contains gravel and the specific gravity becomes 0.3 or more, the spraying distance will drastically decrease.
It will be less than 0 m.

[0003]

DISCLOSURE OF THE INVENTION The present invention is directed to a compressor (usually 0.5 to 0.6) mounted on a tip spraying vehicle.
The present invention provides a booster device capable of maintaining long-distance transportation without being affected by the compressor capacity of the spraying vehicle even when the property or specific gravity of the tip changes when the hose is pressure-fed by using (kg / cm ² ) as a pressurized air source. .

[0004]

In the device of the present invention, the introduction cylinder, the nozzle inner cylinder, and the outer cylinder connected to the tip pressure feed hose of the work vehicle are concentrically arranged so that their inner diameters are substantially the same.
A hose coupler is connected to the introduction cylinder or the outer cylinder and is connected to the middle of the hose connected to the pressure feeding device of the work vehicle. A proximal end portion of the inner cylinder is connected to the introduction cylinder outer wall to form an annular gap between the introduction cylinder outer wall and the introduction cylinder outer wall for adjusting the amount of intake of outside air, and a tapered surface is formed on the outer peripheral surface on the tip side. The outer cylinder is provided with a booster gas blowing port on the outer surface of the body, and the base end side is screwed to the outer wall of the inner cylinder body so that the forward and backward positions can be adjusted. An annular nozzle gap is formed by forming a tapered inner surface facing the tapered tapered surface, and the tapered inner surface is connected to a jet flow guide portion, and the annular nozzle gap is adjusted by rotating the inner cylinder and the outer cylinder. The intake amount of outside air into the annular gap is performed by opening and closing a plurality of intake ports provided on the outer circumference of the inner cylinder base.

[0005]

BEST MODE FOR CARRYING OUT THE INVENTION 1 is a part of a work vehicle, and 2 is a rotary crushing device 3 for the next stage of chips supplied from a storage chamber (not shown).
Is a pressure feeding device and is connected to a pressure air pipe 6 of a compressor 5 which is PTO driven by a work vehicle engine. 7 is a hose that transports the crushing chips and the pressurized air, and the unit length is about 6 to 7 m.
More than one book is linked. Even with such a configuration, when the chips are dry and do not contain gravel or small rocks, a spraying distance of about 100 m can be obtained from the work vehicle. However, if the average specific gravity of the tip is 0.3 or more and contains gravel, etc., gravel will accumulate on the bottom of the hose, so the spray distance is 2
It will be drastically reduced to 0-30m. Reference numeral 10 is a booster of the present invention connected in the middle of the hose, 8 is a female coupler or coupler connecting portion, and 9 is a male coupler connecting portion, which can be connected to any portion of the hose. Reference numeral 11 denotes a diesel engine-driven compressor installed outside the machine, and the pressurized gas supply hose 12 is connected to the blower port 13 of the booster outer cylinder.

The structure of the booster of the present invention is shown in FIG. 20
Is a short tube-shaped chip introduction tube having a coupler or a coupler coupling portion formed at the outer end 21, 23 is an inner nozzle tube, and the base end is formed so as to form an annular space 25 with the outer wall of the introduction tube. The portion 24 is connected to the intermediate outer wall 22 of the introduction cylinder, and a plurality of open / closed outside air inlets 26 are provided on the outer periphery of the base end portion.
A stop taper surface 28 is formed on the inner surface of the base end portion. 27
Is an opening / closing plug for adjusting the intake amount of outside air. A tapered surface 30 and an air chamber 31 are provided on the outer circumference of the tip nozzle portion 29, and a screw portion 32 is formed on the outer circumference of the body portion. Outer cylinder 33
Is provided with a booster gas blowing port 13 on the outer periphery of the body portion, and the base end side is screwed into the threaded portion of the inner cylinder 34 and is connected so as to be able to move forward and backward. Reference numeral 35 denotes a tapered inner surface which is connected to the blow-in port 13 and is formed on the inner surface of the outer cylinder so as to face the tapered surface of the inner cylinder, whereby an annular nozzle gap G is formed. Reference numeral 36 is a jet guide tube connected to the inner surface of the taper, and the coupler connecting portion 9 is provided at the tip thereof. The tip introducing cylinder, the nozzle inner cylinder, and the outer cylinder have the same inner diameter (minimum diameter).

In the above apparatus, the chip feed rate is proportional to the rotation speed of the rotary crushing apparatus 3, and the tip discharge range is determined by the booster gas pressure and the adjustment of the booster apparatus, but the intake outside air has a light tip and a large discharge rate. Especially effective when.
This booster device can be directly connected in two stages by using a hose coupler provided at the end of the introduction cylinder and the outer cylinder to further enhance the suction capability of the chip.

[0008]

[Embodiment] Each cylinder has an inner diameter of about 5 inches, and an outer cylinder has a length of about 50c.
m, the length of the inner cylinder is about 35 cm, each taper angle is 10 °, the outside air suction port (inner diameter is about 1.8 cm) is made into six, and a buster main body is produced, and this is connected to the pumping device 4 of the work vehicle. It was placed at an intermediate position of 100 m (6.6 m × 16). As shown in FIG. 2, a diesel engine driven compressor (output 37 kW) compressor 11 (discharging air amount 5 m ³ / min, discharge maximum pressure 7 kg) is provided in the blower inlet 13 as shown in FIG.
/ Cm ² ) was connected, and the inner and outer cylinders were rotated so that the discharge pressure was 5 to 6 kg / cm ² , and the annular nozzle gap G was adjusted. It should be noted that the outside air intake amount is effective in the case of a relatively lightweight tip, but is less effective in the case of a heavy tip, so the intake port 26 is opened at only two locations. In this state, the compressor 5 (output 33
kW, rotation speed 1550 rpm, discharge air amount 20 m ³ /
When a water-containing tip (average specific gravity 0.3) in which gravel was mixed was pressure-fed by a discharge maximum pressure of 0.59 kg / cm ² , the tip could be sprayed within a range of about 20 m from the tip of the hose. By the way, when the booster was removed, it could not be sprayed from the work vehicle with a hose length of about 25 m or more.

[0009]

The spray chips are usually piled up near the felling site, and the apparent specific gravity fluctuates extremely due to the absorption of rainwater and the inclusion of rocks. In many cases, it is not possible to deal with this, but according to the present invention, such a chip can secure a spraying range similar to that of the dry lightweight chip. Further, since the booster compressor of the present invention may be a commercially available product or a rental product, it is advantageous in terms of cost.

[Brief description of drawings]

FIG. 1 is a piping connection system diagram showing a usage state of the booster device of the present invention.

FIG. 2 is a vertical sectional side view of the booster device of the present invention.

[Explanation of symbols]

3 Chip crusher 4 pumping device 5 compressor 7 hose 8, 9 hose coupler 10 Busta 11 External high pressure compressor 13 Inlet 20 Introductory tube 23 nozzle inner cylinder 24 Base end 25 annular void 26 Outside air intake 28 Aperture taper surface 29 Tip nozzle 30 Tapered taper side 33 outer cylinder G annular nozzle gap 36 Jet guide tube

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Toshimi Omiya             1-22 Sakuragaoka, Setagaya-ku, Tokyo Maru             Inside technica corporation (72) Inventor Koji Shibuya             3-6-10 Seko, Fujieda City, Shizuoka Prefecture F-term (reference) 3F047 BA02 CA01

Claims (3)

[Claims] 1. An introduction cylinder, a nozzle inner cylinder, and an outer cylinder connected to a chip pressure-feeding hose of a work vehicle are arranged concentrically with their inner diameters being substantially the same, and a hose coupler is provided on the introduction cylinder and the outer cylinder. The inner cylinder has a base end portion continuously connected to the outer wall of the introducing cylinder body portion, and an annular gap is formed between the inner cylinder and the outer wall of the introducing cylinder to suck outside air. The outer cylinder is provided with a booster gas blowing port on the outer peripheral surface of the barrel portion, and the base end side is screwed to the outer wall of the inner barrel body so that the forward and backward positions can be adjusted, and is connected to the booster gas blowing port. A booster device for pressure-feeding a tip, characterized in that a tapered inner surface facing the tapered tapered surface of the inner cylinder is formed on the inner surface of the outer cylinder to form an annular nozzle gap, and the tapered inner surface is connected to a jet flow guide portion. 2. The apparatus according to claim 1, wherein the amount of outside air sucked into the annular gap is adjusted by a plurality of inlets that can be opened and closed. 3. The apparatus according to claim 1, wherein a tapered inner surface is formed on an inner surface of the inner cylinder which is connected to the annular gap.