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Drying and quality improvement apparatus for slime and sludge and technology thereof

A technology of sludge drying and drying medium, applied in the direction of dewatering/drying/concentrating sludge treatment, etc., can solve the problems of limited processing capacity of a single system, poor particle size of finished products, large floor space, etc., to speed up water diffusion The effect of speed, small footprint, and low system resistance

Active Publication Date: 2011-03-09
HUANENG CLEAN ENERGY RES INST
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The coal slime drum drying process system is relatively simple and the technology is relatively mature, but there are also obvious defects such as low heat transfer coefficient, limited processing capacity of a single system, poor particle size and quality of finished products, and large floor space.

Method used

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  • Drying and quality improvement apparatus for slime and sludge and technology thereof
  • Drying and quality improvement apparatus for slime and sludge and technology thereof
  • Drying and quality improvement apparatus for slime and sludge and technology thereof

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Embodiment Construction

[0029] The present invention will be described in more detail below in conjunction with the accompanying drawings and embodiments.

[0030] see figure 1 , the drying pipe 3 of this embodiment 1 adopts an equal cross-sectional structure, and the inlet of the high-moisture material to be dried is arranged below the outlet of the drying pipe 3 and in the middle of the drying pipe 3 above the outlet of the material breaking device 4, so as to realize feeding in the middle; The inlet of the dry high-moisture material is connected to the discharge port of the feeder 2, the feed port of the feeder 2 is connected to the silo 1, the feeder 2 is a coal slime rotary cutter, and the smoke of the material breaking device 4 The gas inlet is arranged at the bottom of the material breaking device 4 and communicates with the flue gas outlet of the flue gas generator 5, and the flue gas is fed from the bottom of the material breaking device 4, and the flue gas generator 5 is a chain furnace. i...

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Abstract

The invention provides a drying and quality improvement apparatus for slime and sludge and technology thereof. The device mainly comprises a smoke producer, a feeder, a drying tube, a material breaking-apart device, a cyclone separator, a fine-grain conveying device, a finished-product handling device, a dust remover and a draft fan. The drying medium generated by the smoke producer and high-moisture materials to be dried administered by the feeder enter into the material breaking-apart device and the drying tube respectively. The high-moisture materials are subject to deep drying and air classification in the drying tube after being broke apart and preliminarily dried in the material breaking-apart device, wherein the particles of the size within the designed upper limit are carried into the separator by airflow and the particles of the size higher than the designed upper limit drop into the material breaking-apart device to be broke apart for a second time. Finished products collected by the separator are sent to coal yards or other places by the conveying device. Exhaust steam discharged by the separator is discharged into the atmosphere by the draft fan after being treated with the dust remover. The above apparatus has the advantages of better drying effect, reliable operation, simple system and compact structure.

Description

technical field [0001] The invention relates to the technical field of drying and upgrading, in particular to a coal slime and sludge drying and upgrading device and process. Background technique [0002] Coal preparation production will be accompanied by a large amount of primary coal slime and secondary coal slime. Due to the high moisture content, the products have no market and can only be stacked in vacant land, which not only easily causes waste of resources, but also easily leads to environmental pollution. Even after being recycled by a filter press, the slime filter cake has fine particle size, high moisture content, high viscosity, and low quality, making it difficult to achieve efficient industrial applications, and the main outlet is civilian land sales. [0003] At present, there are only a few circulating fluidized bed (CFB) boilers in the power industry that can directly use co-firing to utilize press filter slime, and the co-firing share is basically controll...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F11/12
Inventor 徐正泉郭涛蒋敏华肖平
Owner HUANENG CLEAN ENERGY RES INST
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