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Method for drying domestic waste and drying drum for same

A technology for drying drums and wastes, applied in the field of drying drums for household wastes, can solve problems such as inapplicability, and achieve the effect of reducing wear and tear

Active Publication Date: 2012-10-03
ALBA 2 ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

None of them are suitable for waste recovery equipment

Method used

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  • Method for drying domestic waste and drying drum for same
  • Method for drying domestic waste and drying drum for same

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Embodiment Construction

[0075] Application DE 10 2007 010 070 A1 is a description of the structural design of an MPS plant, the components of said plant and the methods used in this plant, in particular with regard to the tumble dryer, which is hereby incorporated by reference in its entirety.

[0076] The drying drum 1 has an interior space 2 through which a hot air flow flows in a longitudinal direction 6 . The hot air flow 4 enters the interior space 2 through an upstream inlet 8 , from which it is discharged through an outlet 10 . Depending on the composition of the household waste varying from one area to an adjacent area, the temperature of the hot air stream 4 can vary from 300°C to 500°C. The speed of the hot air flow can be between 20m / s and 40m / s. The object to be achieved is shock drying of the material flow. To ensure this, the material flow is controlled within the drying drum by means of process variables such as temperature and humidity. For example, if the temperature drops and / or ...

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Abstract

The method for drying domestic wastes (14) including a light-density fraction (16) and a heavy fuel fraction (18) using a rotating drum dryer (1) with ejector blades (42) and a drum wall (20), comprises introducing the domestic wastes arranged into the drum dryer, and transporting a hot air stream directed along the drum dryer of the light-density fraction. The heavy fuel fraction is transported over a portion of length of the drum dryer to a part of the ejector blades passing along the drum wall and conveyed by a rotational movement of the drum dryer along the drum wall. The method for drying domestic wastes (14) including a light-density fraction (16) and a heavy fuel fraction (18) using a rotating drum dryer (1) with ejector blades (42) and a drum wall (20), comprises introducing the domestic wastes arranged into the drum dryer, and transporting a hot air stream directed along the drum dryer of the light-density fraction. The heavy fuel fraction is: transported over a portion of length of the drum dryer to a part of the ejector blades passing along the drum wall; conveyed by a rotational movement of the drum dryer along the drum wall; transported to a heavy mass transfer openings consecutive in a longitudinal direction of the drum dryer through bulkhead walls of the drum dryer; and partially transported by the ejector blades through one of the ejector blade downstream to the heavy mass transfer openings along the drum wall. The hot air stream decelerates in an upstream part of the drum dryer and is accelerated in a downstream part of the drum dryer. An independent claim is included for a drum dryer for domestic wastes.

Description

technical field [0001] The invention relates to a method for drying household waste comprising a light fraction and a heavy material fraction by means of a rotating drying drum having a discharge notch and a drum wall, the household waste to be dried being introduced into A drying drum and a stream of hot air, which is directed along the drying drum, convey the lightweight portion through the tumble dryer. [0002] The invention also relates to a drying drum for household waste, comprising at least one inlet, at least one outlet, an interior space divided by a partition wall extending substantially transverse to the longitudinal direction of the drying drum, and further A flow channel is included that extends substantially continuously along the middle region of the drying drum from the inlet to the outlet. Background technique [0003] Such methods and drum dryers including such drying drums are used in so-called MPS plants (MPS—Mechanical-Physical Stabilization) for the p...

Claims

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Application Information

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IPC IPC(8): F26B3/02F26B17/30F26B25/16
CPCF26B11/0413Y02E50/30F26B2200/04Y02E50/10
Inventor 不公告发明人
Owner ALBA 2 ENERGY
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