ES1056175U - Waterproof plate of phosas for the storage of liquid waste and other products. (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Waterproof sheet of pits for the storage of liquid waste and other products, which being intended to cover the interior of a pit to prevent leakage, characterized in that it comprises a lower laminar layer (1), an upper laminar layer (2) and an intermediate layer of polyurethane (3) of greater thickness than the two previous ones (1 and 2); joining these by different types of welding, such as hot air or hot melt. (Machine-translation by Google Translate, not legally binding)

Description

Waterproof pits for storage of liquid waste and other products.

Object of the invention

The invention consists of a waterproof sheet of pits for storage of liquid and other waste products whose purpose is to prevent leaks from waste, therefore avoiding contamination of soil and groundwater.

Thus, it is applicable to rafts where store livestock waste, such as slurry and manure, as well as livestock food.

The main objective of the invention is to ensure a total tightness of the raft.

Background of the invention

Raft pits are generally limited by a bottom and side walls preferably inclined convergent towards that bottom, so that the edges and corners are rounded off in order to get a better adaptation of the waterproof sheets that will then cover these rafts, in order to receive Then the waste avoiding leaks.

Both the bottom and the side walls or slopes from the pit should be free of stones, roots and in general of any sharp material that can pierce the waterproofing sheets, so that to avoid it, in some cases an attempt will be made to lay a blanket of earth or sand with sufficient thickness to ensure that the waterproofing does not suffer any damage.

Description of the invention

The waterproof pits sheet for the liquid waste storage and other products are determined from two laminar bodies: one textile (geotextile) lower, which is in contact with the surface from the pit and another superior manufactured essentially with polyethylene that will be in contact with the content of the product a dam.

In turn, these laminar bodies complement each other with a third intermediate layer of greater composite thickness essentially by an expanded polyurethane material.

The geotextile laminar bodies that make up the bottom layer fix each other overlapping each other and being welded next by welding points by hot air, for example.

The intermediate polyurethane layer is projected onto the lower layer of geotextile.

The upper laminar bodies are held between yes, overlapping each other and then weld by a double welding thermofusion machine.

On one of the sides of the raft and attached to the one or more tubes will be placed (depending on the capacity of the raft) with a sufficient diameter to proceed to emptying of it when deemed appropriate.

On the other hand, in proximity to the mouth of the pit there is a perimeter channel that will be covered with a stretch perimeter of the waterproofing, then filling the space of that channel with a material in order to fix of immovable form the sheet of the invention.

Especially in rainy areas, the possibility of incorporating a cover supported by posts arranged outside the said channel perimeter. This will prevent the flow of water do not fill the pit, thus avoiding overflows and having to build larger rafts, avoiding also soil and water pollution underground.

There is also the possibility of incorporating a perimeter fence to prevent anyone from falling into the raft leaving an access door.

Next to facilitate a better understanding of this descriptive report and forming an integral part of the same are accompanied by some figures in which with character illustrative and not limiting the object of the invention.

Brief description of the drawings

Figure 1.- Shows a sectional view of the sheet waterproof pits for liquid storage and other products, object of the invention.

Figure 2.- Shows a detailed view of the sheet section of the invention.

Figure 3.- Shows a plan view of the sheet It covers a pit for waterproofing.

Description of the embodiment favorite

Considering the numbering adopted in the figures, the waterproof pit sheet comprises two sheets or layers: a lower 1 of geotextile material and a higher one 2 of polyethylene, both associated by a third layer Expanded polyurethane intermediate 3 thicker.

The lower sheets of geotextile 1 stand in solidarity each other by hot air welding points and the upper sheets of polyethylene 2 by double thermofusion welding.

Thus, the sheet of the invention will cover the pit throughout its surface including a perimeter band where there is a channel 4 near the mouth of pit 6, channel 4 that will also be covered with the waterproof sheet, and then fill that channel with a product in order to achieve total immobilization of the sheet of the invention.

A pipeline 5 is also planned to proceed to product emptying when required.

Claims (2)

1. Waterproof sheet of pits for the storage of liquid waste and other products, which being designed to cover the inside of a pit to prevent leaks, is characterized in that it comprises a lower laminar layer (1), an upper laminar layer (2) and an intermediate layer of polyurethane (3) thicker than the previous two (1 and 2); joining these by different types of welding, such as hot air or hot melt. 2. Waterproof pits sheet for the storage of liquid waste and other products, according to claim 1, characterized in that the sheet is fixed by a perimeter section in a groove (4) near the mouth of the pit (6), which groove is filled with any material.