Method and apparatus in a pneumatic material conveying system, and a waste conveying system

Abstract

Method in a pneumatic material conveying system, such as in a waste conveying system, which conveying system comprises at least one input point (61) of material, more particularly of waste material, a material conveying pipe (100), which can be connected to an input point (61), and a separating device, in which the material to be transferred is separated from the conveying air, and also means for achieving a pressure difference and / or a conveying air flow in the conveying pipe (100) at least during the transfer of material. In the method material is conveyed from an input point (61) to the separating means (106) or an accumulator tank of a subsystem (1), where the material is separated from the conveying air, and in a second phase the separating means (106) or the accumulator tank of the subsystem (1) is emptied.

Description

BACKGROUND OF THE INVENTION[0001]The object of the invention is a method as defined in the preamble of claim 1.[0002]The object of the invention is also an apparatus as defined in the preamble of claim 10.[0003]The object of the invention is also a pneumatic waste conveying system as defined in the preamble of claim 18.[0004]The invention relates generally to pneumatic material conveying systems, such as to partial-vacuum conveying systems, more particularly to the collection and conveying of wastes, such as to the conveying of household wastes.[0005]Systems wherein wastes are conveyed in piping by means of suction and / or conveying air are known in the art. In these, wastes are conveyed long distances in the piping by sucking. The apparatuses are used for, among other things, the conveying of wastes in different institutions. It is typical to these systems that a partial-vacuum apparatus is used to achieve a pressure difference, in which apparatus a partial vacuum is achieved in the...

AI Technical Summary

Benefits of technology

The invention provides a solution for waste systems in construction projects that can better distribute costs over a longer period of time and be expanded modularly. The system includes partial-vacuum generators that can provide the necessary suction and blowing for a more extensive system. In case of malfunctions, another partial-vacuum generator can be used instead. The system also allows for efficient transfer of wastes between subsystems by using the suction / pressure of the subsystem. The conveying pipe diameter of a subsystem can be smaller than the diameter of the trunk pipe, reducing power requirements and costs. The system reduces the volume of outlet air, noise, and dust problems. The conveying pipe is composed of operating areas that can be effectively arranged for material transfer and emptying input points. The solution is suitable for both conventional conveying systems and ring piping systems.

Problems solved by technology

In this case in the initial phase of a construction project a situation is encountered wherein it is necessary to make sizable investments in equipment, even though the designed full capacity will not be needed in the system for years yet.

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