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Coal slime and sludge drying upgrading device and process

A technology of sludge drying and drying medium, which is used in combined devices, dewatering/drying/concentrating sludge treatment, gas treatment, etc., which can solve the problem of poor particle size and quality of finished products, large floor space, and limited processing capacity of a single system. problems, to achieve the effect of small footprint, low system resistance, and accelerated water diffusion rate

Inactive Publication Date: 2017-06-09
周子童
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] Obvious defects such as 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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  • Coal slime and sludge drying upgrading device and process
  • Coal slime and sludge drying upgrading device and process
  • Coal slime and sludge drying upgrading device and process

Examples

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Embodiment Construction

[0032] The present invention will be described in more detail below in conjunction with the accompanying drawings and embodiments.

[0033] 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 configured in the middle of the drying pipe 3 below the outlet of the drying pipe 3 and 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. The flue gas is fed from the bottom of the material breaking device 4, and the flue gas generator 5 is a chain furnace. in ...

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Abstract

The invention relates to a coal slime and sludge drying upgrading device and process. The device mainly comprises a smoke gas generating furnace, a feeding machine, a drying pipe, a material scattering device, a cyclone separator, a fine particle conveying device, a finished product conveying device, a dust remover and a draft fan, wherein dry media generated by the smoke gas generating furnace and high-moisture materials to be dried fed from a feeding machine respectively enter the material scattering device and the drying pipe; the high-moisture material is subjected to scattering and primary drying in the material scattering device; the deep drying and pneumatic sorting are realized in the drying pipe, wherein particles with the particle diameter not exceeding the design upper limit requirements are carried by air flow to enter the separator; particles with the particle diameter greater than the design upper limit fall into the scattering device to be scattered again; finished products collected by the separator are conveyed into a coal field or other places through the conveying device. Exhaust air exhausted from the separator is treated by the dust remover and is then exhausted into the atmosphere through the draft fan. The characteristics of better drying effect, operation reliability, system simplicity and compact structure are realized.

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): C02F11/12C02F11/16B01D50/00
CPCC02F11/12C02F11/16C02F2103/10C02F2103/001B01D2258/0283B01D50/20
Inventor 周子童
Owner 周子童
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