JPH01258708A - Waste water filter at construction site - Google Patents

Abstract

PURPOSE:To remove the washing refuse, etc., in waste water at construction sites and to prevent the clogging of a sewer by providing a filter bag in a vessel opened at the upper part, and arranging an overflow pipe for filtered water communicating with the bottom on the front side face of the vessel. CONSTITUTION:The inside of the vessel 1 opened at the upper end is separated by a perforated plate such as a punched metal into two chambers, an exchangeable filter bag 2 of a nonwoven fabric is placed in each chamber, an overflow pipe 3 for filtered water communicating with the bottom is provided on the front side face of the vessel 1, and multiple vessels 1 are further connected in compliance with the required filtration precision. When the waste water contg. mortar, coating, etc., is introduced into the vessel on the uppermost- stream side, washing refuse A is filtered off by the filter bag 2, the filtered water ascends in the overflow pipe 3 and is discharged into the succeeding vessel 1 from a faucet 3b, the process is repeated, and the final treated waste water is discharged into a sewer 9.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field 1] The present invention relates to a wastewater filtration device at a construction site.

[Prior Art] Generally, at a construction site, etc., after plasterers, painters, etc. have finished their work, they wash mortar, paint, etc. with water and pour it into the sewer.

[Problem to be Solved by the Invention 1] However, if the materials used in construction such as mortar and paint are poured into the sewer, there is a risk that they may accumulate in the sewer pipes and cause clogging, causing problems such as environmental pollution. There is.

The present invention has been made to solve the above-mentioned conventional problems, and its purpose is to provide a wastewater filtration device that is easy to move and install, and that can easily remove washing residue. It is in.

[Means for Solving the Problems J] The wastewater filtration device for construction sites of the present invention comprises a container equipped with an overflow pipe opened at the bottom and a filter bag exchangeably housed in the container. It is characterized by the fact that a perforated plate is arranged in the middle part of the container to form multiple storage chambers, casters are provided under the container to make it movable, and the container can be made movable. It is also characterized by the fact that it is configured so that it can be stored in a nested manner by changing the size of each.

[Example] Hereinafter, an example of the present invention will be described with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a container with an open top, in which a filter bag 2 can be accommodated.

An overflow pipe 7O-W3 is disposed on the front side of the container 1, and as is clear from FIG. 2, the lower i portion of the overflow pipe 3 communicates with the inside of the container 1.

In addition, the communication opening is provided with a protective material such as mesh or punched metal. [4 is provided.

Further, a cleaning opening 3a is provided outside the lower end of the over 71:F-pipe 3, into which a stopper 5 is normally inserted.

The upper part of the overflow pipe 3 is branched into a T-shape, and taps are provided on the left and right faucets 3b.

A perforated plate 7 made of punch metal or mesh is disposed in the middle of the container 1, and the container 1 is divided into two storage chambers, each of which accommodates a filter 92 in a replaceable manner. It is supposed to be done.

Further, casters 8 are attached to the lower side of the container 1, so that it can be easily moved.

The filter bag 1 is made of a material such as non-woven fabric, and is capable of filtering cleaning residue such as mortar and paint.

Since the wastewater filtration apparatus of this embodiment is constructed as described above, when using it, a large number of containers 1 are arranged in multiple stages according to the required filter accuracy, as shown in FIG.

Then, when wastewater containing mortar, paint, etc. is poured into the container 1 on the most upstream side, the waste A is filtered out by the filter bag 2 therein, and the filtrate rises through the overflow pipe 3 and flows to the faucet 3.
b is discharged into the next container 1, and the same operation is repeated one after another until it is finally purified and drained into the sewer pipe 9. In some cases, a chemical solution is dripped into the water to make it non-toxic and meet environmental standards before discharging it into the sewage system.

When two filter bags 2 are stored in the container 1, when the negative filter bag 2 becomes full, the filter is switched and the water is poured into the other filter bag 2. Tighten it, remove it from container 1, put in a new filtration R2, and prepare.

Furthermore, as is clear from Figure 2, the size of container 1 is large! By making the size smaller and smaller so that it can be stored in a nested manner, it can be stored compactly and is convenient for transportation.

[Effect of the invention] By changing the material of the filtration bag depending on the type of waste liquid to be filtered and by providing containers in multiple stages, filtration processing can be performed with high precision. Interlayers such as contamination can be prevented.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing one embodiment of the waste water filtration device of the present invention, and FIG. 2 is an explanatory view showing its usage state. 1... Container, 2... Filter bag, 3... Overflow pipe, 3a... Cleaning port, 3b... Faucet, 4... Storage lid, 5... Stopper, 6...・Hook, 7...perforated plate,
8...Caster, 9...Sewage pipe, A...Filter scum.

Claims (1)

[Claims] 1. A container equipped with an overflow pipe opened at the bottom;
A wastewater filtration device for a construction site, comprising a filtration bag replaceably housed within the container. 2. The wastewater filtration device for a construction site according to claim 1, wherein a perforated plate is disposed in the middle of the container to form a plurality of storage chambers. 3. The wastewater filtration device for a construction site according to claim 1 or 2, wherein casters are provided under the container to make it movable. 4. The wastewater filtration device for a construction site according to claim 1, 2 or 3, wherein the plurality of containers have different sizes and can be stored in a nested manner.