JPS58131240A - Operation of running type grit collector - Google Patents

Abstract

PURPOSE:To effectively operate a grit collector by a method in which a supersonic distance measurer is hung down from part of the grit collector running on a grit basin, the settling condition of grit is measured and calculated, and the grit is lifted up preferentially from higher place of settled grit. CONSTITUTION:A girder 2 is provided to a grit basin 1 in a freely running manner, a transversally running truck 3 is provided on the grider 2, and a grit collector and lifter 4 is provided to the truck 3. A rod 5 is hung down from part of the grider 2 in a turnable manner, and a supersonic distance measurer 6 is provided to the lower part of the rod 5 in such a way as to permit the fitting angle to freely alter. In grasping the settled condition of grit, supersonic waves are generated while turning the measurer 6 by varying its angle, reflected waves from the surfaces of settled grit are collected, and the depth of the settled grit is calculated by a computer on the basis of the reflected waves. When more than a given amount of settled grit is reached, higher place of the settled grit is preferentially collected and lifted up by the grit collector and lifter 4.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of operating a traveling type sand-settling machine that constantly monitors and grasps the sedimentation situation in a sand-settling basin to efficiently scrape up sand.

Sand settling basins, especially rainwater settling basins, are also used as bypass channels during rainfall, so they require a relatively wide waterway (t).A traveling sand pump (A) is used to lift the sand, and the sand is pumped into the pond or at any desired location. Sand is lifted little by little while the Yoya Traveling Type 5II Sand Shin is running.However, since the conventional method of checking the sand accumulation status in the settling basin by sliding the foot over the entire surface of the settling basin was from the inner layer, sand raking was done using a timer. Intermittent operation and settling basin jllll
Scheduled operation was carried out in which the operation started from s, but in addition to wasting the operation, there were disadvantages such as the area with a large amount of sediment that needed to be scraped up with the highest priority could become jl[.

In view of this, the present invention has been made in order to perform raking efficiently by always monitoring and understanding the accumulation status of sediment in a settling basin. Then, an ultrasonic oscillator receiver is suspended, and the oscillator is used to travel over the entire surface of the settling basin or any part of the basin and scrape up t% mold, preferentially starting from the area with the most accumulated sand. .

The present invention will be explained below with reference to the illustrated embodiment.

In the figure, 1 is a sand settling basin, 2 is a traveling girder that runs along the sand settling basin in the longitudinal or lateral direction of the settling basin, and 3 is on this girder 2. Nine transverse carriages are disposed in the transversal carriage 5, and a sand suction type sand lift machine 4 comprising a submersible pump, a hose, etc., a packet elevator type lifting machine, or other type of 1Ilp machine 4 is installed on the transverse carriage 5.

A rod 5 is vertically installed on a part of the traveling girder 2 so as to be able to move up and down, and an ultrasonic distance measuring device 6 consisting of an ultrasonic oscillator and a receiver is attached to the lower part of the rod 5. The mounting angle is provided so that it can be freely moved.

Therefore, in order to ascertain the sedimentation situation in the settling basin using the above-mentioned device, an ultrasonic oscillator 6t supported vertically from the traveling girder 2 is lowered into a part of the settling basin, preferably below the water surface, and the oscillator is activated. The ultrasonic oscillator generates ultrasonic waves while changing the oscillation angle, and calculates the distance from the ultrasonic oscillator to the table of sand by capturing the reflected waves, and calculates the depth of accumulation at each location. Then, if the predetermined amount of accumulation or the depth of accumulation in one area becomes abnormally deep, a traveling type pump (fl is a sand absorption type,
A packet elevator (packet elevator type) is operated, and the operation is carried out so as to preferentially lift the sand in the deep areas, sequentially or singly. As a method of understanding the sedimentation state of sand, an ultrasonic oscillator is used to emit ultrasonic waves from any point in the pond while changing the oscillation angle to the entire surface or part of the sedimentation basin.The depth of sand accumulation can be determined from the relationship between position and angle. The block diagram in Fig. 4 shows a method for calculating and understanding the entire irradiated area of SAT7 (using a microcomputer) and a method for performing raking according to the calculation. Further, FIG. II5 is an explanatory diagram showing the method of calculation, which is obtained using the following equation.

An-g-, t%&tAh An-lxmH-z si x bt* outside-ILPL-χ%jkh island-1
Infectious milk/l cicada-maru 4k + 4%-1mH-zn 6#
J la +H-Pmz bq* IL, xm zH-
zs b#j&-I%-16JPj A, zJL%-1
%-1 Wealth χu-? - Operation or only one part of the pile! Compared to the method of issuing operation commands based on R depth, it is very effective because it depends on the total amount of sedimentation. Advantages such as effective operation tfF.

[Brief explanation of the drawing]

Fig. 1 is a front view showing a traveling sand scraping system in a sand settling basin, Fig. 2 is a plan view of the same, Fig. 3 is an explanatory diagram of an ultrasonic oscillator, Fig. 4 is a control block diagram, and Fig. 5 is a Ii for arithmetic calculations! It is clearly illustrated. 1...Sand basin 2...Traveling girder 3...Traversing trolley 4...Lifting 1m 5...Rodro...Ultrasonic incubator

Claims (1)

[Claims] In a traveling type sand scraper that scrapes up sediment while traveling in a sand settling basin, an ultrasonic oscillator receiver is suspended from a part of the sand settling machine, and the cough oscillator is connected to the entire surface of the settling basin or any arbitrary part. 17i, and while changing the oscillation angle f, oscillates ultrasonic waves to measure and calculate the state of sand accumulation Nt in the settling basin, and sequentially travels and rakes up from areas with a large amount of sand in the settling basin. A method of operating a sand raking machine characterized by the following.