JPS6011470Y2 - Measuring hopper for water-containing materials - Google Patents

Description

[Detailed description of the invention] This invention relates to a hopper for weighing water-containing materials such as dust containing water.

In order to accurately determine the weight of such a water-containing material, it is necessary to prevent water from dripping during weighing.

Therefore, in the case of a weighing hopper with an input port at the top and a discharge port at the bottom, a sufficient seal must be provided to prevent water from leaking when the bottom discharge port is closed by the gate or top plate.

For this reason, various efforts have been made to date, but it is difficult to maintain complete watertightness over a long period of time, and even if watertightness is achieved, foreign objects may be trapped between the periphery of the outlet and the gate plate, preventing leakage. This may occur in some cases.

In order to solve the problem of the conventional watertight structure as mentioned above, this idea is to install a water tray under the gate plate, catch the leaked water in this water tray, and measure the weight of the water inside the water tray. A weighing hopper is provided.

The details of this invention will be explained below based on the attached drawings.

In the figure, reference numeral 1 denotes a weighing hopper body in the form of a rectangular tube with an open top and bottom, with an input port 2 at the top and a discharge port 3 at the bottom.

In addition, a plurality of arms 4 projecting outward from the main body 1 are supported by a measuring mechanism such as a load cell or a lever system (not shown) to measure the load applied to the main body 1.

Reference numeral 5 denotes gate plates for opening and closing the discharge port 3 at the lower part of the main body 1, and there are a pair of left and right gate plates, each of which rotates around a shaft 6 to open and close the discharge port 3.

A gasket 7 is attached to the upper surface around the gate plate 5 and to the periphery of the discharge port 3 so that watertightness is maintained when the gate plate 5 closes the discharge port 3.

Reference numeral 8 denotes a water tray fixed to the lower side of each gate plate 5 by a plurality of mounting rods 9, and the water tray 8 on the right side as viewed in the figure is enlarged to have a peripheral wall larger than the entire circumference of the right gate plate 5. The water dripping from around the gate plate 5 is made sure to enter the water tray δ.

Also, although the left water tray 8 is small, its right side wall is on the lower left side of the right water tray 8, and the other side walls are positioned outside the outer edge of the left gate plate 7. Water dripping from around 5 falls into a water tray 8 on the left or right side.

In addition, the side walls of each water tray 8, especially the side walls of the lowest part when the gate plate 5 is opened, are tilted outward so that when the gate plate 5 rotates downward and the discharge port 3 is fully opened. Water saucer 8
Make sure the water inside is completely drained.

Note that the gate plate 5 is opened and closed by a hydraulic or air cylinder, an electromagnet, a motor, or the like.

This device has the above-mentioned configuration, and when the gate plate 5 closes the discharge port 3 as shown in FIG. Throw something in and measure its weight.

During this measurement, water in the hydrous material flows down and collects in the body 1, which is closed by the gate plate 5, but some of it leaks through imperfections in the seal.

However, in the case of this invention, all the water leaking from the seal portion of the gate plate 5 and the main body 1 enters the water tray 8.

Therefore, since the water coming out of the water-containing material is measured together with the water-containing material, there is no risk of measurement errors caused by separated water.

After measuring the weight of the water-containing material in this way, when the gate plate 5 is opened downward as shown in Fig. 2, the water-containing material in the main body 1 and the water in the water tray 8 are discharged together and sent to the next conveyor, etc. It will be done.

As mentioned above, this idea is based on the fact that a water tray for leaked water is provided under the gate plate that opens and closes the discharge port at the bottom of the weighing hopper, and the leaked water is weighed together with the water-containing material by weight. There is no measurement error, so there is an advantage that the watertight structure between the gate plate and the main body can be easily created.

Further, when the gate plate is in the open position, all the water in the water tray is discharged, so there is no risk that water will remain in the water tray and cause an error during the next measurement.

As mentioned above, this device accurately measures the weight of moisture-containing garbage, so it is suitable for, for example, installing it in the middle of a transportation path for moisture-containing garbage to accurately determine the amount of moisture to be conveyed. There is.

[Brief explanation of drawings]

FIGS. 1 and 2 are longitudinal sectional views showing various states of the weighing hopper of this invention. 1...Measuring hopper body, 2...Input port, 3...Discharge port, 5...Gate plate, 8
・・・・・・Water saucer.

Claims (1)

[Scope of utility model registration request] In the weighing hopper body, which has an input port at the top and a discharge port at the bottom, the discharge port is opened and closed by a gate plate that rotates downward. A water-containing container is equipped with a water tray that collects water dripping from the container and drains the water when the gate plate is opened.