JPH09286386A - Water quality improving agent spraying device in ship - Google Patents

Abstract

PROBLEM TO BE SOLVED: To spray a water quality improving agent even under a bridge over a river under which a working ship can not go by continuously making water quality improving agent slurry with extreme ease and by continuously spraying the slurry in the wide region of water with uniform concentration and by slanting a guide tower for a spray rod. SOLUTION: A water quality improving agent is stirred into water to make slurry. A spray rod 12 having a spray nozzle 14 for continuously spraying the slurry in the water at the bottom end thereof is freely slanted and the spray nozzle 14 can be moved in the direction which separates from a spray ship 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water quality improving agent spraying boat apparatus, and more particularly to a water quality improving agent spraying boat apparatus capable of spraying an improving agent under a river bridge.

[0002]

2. Description of the Related Art In recent years, the sea and rivers are polluted with the inflow of domestic wastewater and industrial wastewater, generating hydrogen sulfide, blue tide, red tide, and the like, and sludge is deposited on the bottom.

[0003] In order to improve the water quality and sediment of such seas and rivers, improvers such as lime have been conventionally sprayed.

[0004]

In order to improve the water quality and sediment as described above, it is generally necessary to spray 400 g of an improving agent such as lime per 1 m ² . Improving agents such as lime are sprayed by hand, and powders are scattered by such an improving method, which is not only harmful to the human body, but also cannot be sprayed at a uniform concentration continuously over a wide area. In addition, there was a drawback that it could not be sprayed under a river bridge.

The present invention has been made to eliminate the above disadvantages.

[0006]

SUMMARY OF THE INVENTION A water quality improving agent spraying vessel device of the present invention forms a slurry by stirring a water quality improving agent spraying vessel main body and a predetermined amount of improving agent powder together with a predetermined amount of water. Means, a spraying rod for the slurry, a spraying nozzle provided at the lower end of the spraying rod, a guide turret for supporting the spraying rod up and down on the outside of one end of the spraying boat main body, and a guide turret To vertically move the spray rod, and to tilt the guide turret so that the spray nozzle of the spray rod supported thereby is separated from the spray boat main body. Consist of manual tilting.

The above-mentioned spray nozzle is a variable spray angle nozzle having a central hole and a conical hole that gradually expands radially outward from the central hole toward the opening, and the spray angle changes according to the change in pressure.

[0008]

Embodiments of the present invention will be described below with reference to the drawings.

1 to 3 show a water quality improver spraying apparatus according to the present invention, wherein 1 is a workboat, 2 is a hopper storage tank for placing a powdery improver arranged on the barge 1, and 3 is a hopper storage tank. Hopper,
Reference numeral 4 denotes an improver measuring device for measuring the improver as it passes from the hopper 3, 5 denotes a screw conveyor, 6 denotes a slurry stirring tank, and 7 denotes a high-pressure spray pump.

In the present invention, a predetermined amount of powder of water quality and bottom sediment improver such as lime is continuously taken out from a hopper storage tank 2 on a workboat 1 via a hopper 3 and a improver measuring device 4, and a screw is removed. The slurry is continuously introduced into the slurry stirring tank 6 via the conveyor 5 and stirred together with a predetermined amount of water, for example, at a ratio of the improver 1 to water 10.

A base 8 extending horizontally beyond the end of the barge is attached to one end of the work barge 1, and an improving agent dispersing guide turret 10 can be tilted to an end of the base 8 via an arm 9. The guide turret 10 can be tilted from a vertical state in a direction in which a lower end portion of the guide turret 10 is moved outward from the barge 1 by a tilting means 11 which is pivotally supported and comprises a telescopic rod.

An improving agent spraying rod 12 is attached to the guide tower 10 via a winch wire 13 so as to be movable up and down.
4 and the spray nozzle device 14 and the stirring tank 6
The spaces are connected by an improver spray hose 15 so that the slurry can be pumped to the spray nozzle device 14 by the high-pressure spray pump 7.

As shown in FIG. 3, the spray nozzle device 14 has a common nozzle mounting triangular base 16 extending in the horizontal direction and, for example, six 90 ° to 120 ° wide-angle spray nozzles disposed at the lower end of the base 16. The nozzle 17 is used.

As shown in FIG. 4, the wide-angle spray nozzle 17 has a nozzle body 18, a center hole 19, and a central hole 19.
And a conical hole 21 that gradually widens radially outward toward the opening 20. By changing the pressure of the spray to be sprayed, the spray angle is set to, for example, 90 ° to 120 °.
Can be changed to

Since the water quality improving agent spraying boat apparatus of the present invention has the above-described structure, the rod 12 is usually lowered into the water through the winch wire 13 to convert the water quality such as lime and the bottom quality improving agent slurry into sludge. After dredging, for example, a maximum pressure of 20 kg / cm ^{2 at a} position 1 m above the water bottom from the nozzle 17
Sprinkle with.

When spraying under a river bridge or the like, the guide tower 10 is tilted by the tilting means 11 so that the spray nozzle device 14 is moved to be positioned under the river bridge to perform spraying.

[0017]

According to the water quality improver spraying apparatus of the present invention as described above, the improver slurry can be obtained very easily and continuously, and it can be continuously dispersed in a wide area of water. Can be sprayed at a uniform concentration and the guide tower 10
By inclining it, it becomes possible to spray the improver even under a river bridge where the workboat 1 cannot enter. Also, for example, after sludge dredging, if the slurry mixture is sprayed approximately 10 m above the water bottom, after sludge dredging, The generated mud can be easily suppressed, and there is a great advantage that the spray angle can be arbitrarily changed as required.

[Brief description of drawings]

FIG. 1 is a front view of a water quality improving agent spraying apparatus according to the present invention.

FIG. 2 is a side view of the water quality improving agent spraying ship apparatus of the present invention.

FIG. 3 is a sectional view taken along line AA of FIG. 2;

FIG. 4 is a detailed view of a spray nozzle in the water quality improving agent spray boat apparatus of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Workboat 2 Hopper storage tank 3 Hopper 4 Improver measuring device 5 Screw conveyor 6 Slurry tank 7 High-pressure spray pump 8 Base 9 Arm 10 Improver spray guide turret 11 Tilt means 12 Improver spray rod 13 Winch wire 14 Spraying nozzle device 15 Improving agent spraying hose 16 Nozzle mounting triangular base 17 Wide-angle spraying nozzle 18 Nozzle body 19 Center hole 20 Opening 21 Conical hole

Claims (2)

[Claims] 1. A main body of a water quality improving agent sprayer, a means for stirring a predetermined amount of improving agent powder together with a predetermined amount of water to form a slurry, a spraying rod of the slurry, and a lower end of the spraying rod. , A guide turret that supports the above-mentioned spray rod so as to be vertically movable outside one end of the above-mentioned spray boat main body, and a spray rod vertical movement for vertically moving the above-mentioned spray rod relative to this guide turret. Means and a guide stilt tilting manual for tilting the guide turret so that the spray nozzle of the spray rod supported thereby is separated from the spray boat main body. apparatus. 2. A spray angle variable nozzle having a central hole and a conical hole that gradually expands outward in the radial direction from the central hole toward the opening, wherein the spray angle is variable by changing the applied pressure. The water-quality improving agent-dispersing ship device according to claim 1.