Energy recycling type temperature adjusting dehumidification sludge drying machine system

Abstract

The invention discloses an energy recycling type temperature adjusting dehumidification sludge drying machine system. A sludge feeding bar cutting device is arranged at the top of an inlet / outlet transmission tank; sludge is extruded into a porous plate by using the sludge feeding bar cutting device through a rotating cutter; net strips are arranged inside a drying tank; a cut bar feeding device is arranged at one end of the net strip; a temperature adjusting dehumidification drying device is arranged on one side of the drying tank; the temperature adjusting dehumidification drying device is connected with the bottom of the drying tank through an air supply hole; the net strips are divided into two layers; the first layer of the net strips and the second layer of the net strips are arranged from top to bottom; the start end of the second layer of the net strips is arranged at the lower part of the tail end of the first layer of the net strips; materials of the first layer of the net strips drop into a crushing device at the tail end of first layer of the net strips; crushed sludge drops onto the start end of the second layer of the net strip and finally drops into a discharge hole.By adopting the system, sludge of which the water content rate is within 80-65% can be effectively treated, sludge bar extrusion is not affected, flexible adjustment is achieved, the supply amount can be adjusted through variable frequency of a screw rod pump, a good and uniform spreading effect is achieved, the air permeability of sludge bars can be adjusted, and the requirements of different types of sludge bar extrusion can be met.

Description

technical field [0001] The patent of the present invention relates to the field of drying equipment, specifically an energy recovery type temperature-regulating dehumidification sludge dryer system. Background technique [0002] At present, the commonly used drying systems are mainly direct drying drum drying process, multi-layer step drying process, rotary disc drying process, and fluidized bed drying process. However, sludge belt drying has attracted widespread attention due to its strong adaptability to wet sludge, fewer maintenance parts, long service life, and low drying temperature, and has a good market application prospect; dehumidification combined with mesh belt drying sludge drying Sludge belt drying technology is a new trend, which has great advantages in terms of energy saving and environmental protection. Sludge dehumidification and drying technology will dominate sludge belt drying. [0003] The existing sludge dryers have the following problems: (1) High ene...

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Problems solved by technology

[0003] The existing sludge dryer has the following problems: (1) High energy consumption: sludge drying is a process of net energy consumption, and traditional sludge drying equipment adopts heating, drying and dehumidification methods, and the energy utilization rate is low

(2) There are safety risks. Nitrogen is usually added to reduce the oxygen content in sludge drying to avoid explosions; (3) It is not environmentally friendly: a large amount of odor is emitted, and an exhaust gas treatment system needs to be built; the working environment of the drying workshop is poor; the heating source is used during the drying process The use of boilers also emits a large amount of tail gas, and there is a secondary sludge problem; (4) The wet sludge forming technology is a key link in sludge drying. The current market technology is the orifice extrusion technology, but this technology is affected by impurities (sand) Stone) has a great influence on the friction loss, the sludge strip spread has poor air permeability, and the sludge volume is not easy to adjust, especially the small sludge machine has poor adaptability

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