Device and method for dewatering and drying mud under water

A drying and sludge technology, applied in the direction of dehydration/drying/concentrating sludge treatment, etc., can solve the problems of single form of mechanical dehydration equipment, inability to large-scale batch production, and direct discharge of effluent, etc., and achieve high-efficiency dehydration and drying treatment. , The effect of reducing the time required for natural drying and reducing the cost of dredging

Inactive Publication Date: 2010-12-22
中国船舶重工集团公司第七〇二研究所
View PDF7 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Aiming at the shortcomings of the above-mentioned existing mechanical dehydration equipment used for drying underwater sludge, the effluent cannot be directly discharged, and cannot be produced in a large scale or in b

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Device and method for dewatering and drying mud under water
  • Device and method for dewatering and drying mud under water
  • Device and method for dewatering and drying mud under water

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] The specific embodiments of the present invention will be described below in conjunction with the drawings.

[0026] Such as figure 1 As shown, the underwater sludge dehydration and drying device of the present invention includes a vibrating screen 100, a filter press 200, a purification tower 300, and a centrifuge 400 connected in series by a pipeline and a transfer pump, wherein the filter press 200, purification The input pipeline of the tower 300 and the centrifuge 400 is provided with a flocculant addition machine, and the drain 407 of the centrifuge 400 is connected to the inlet of the purification tower 300. Reference Image 6 The method for dehydration and drying of underwater sludge according to the present invention is mainly divided into four stages for sludge treatment.

[0027] The first level: pretreatment of muddy sewage. The vibrating screen 100 is selected as the pretreatment equipment of muddy sewage. In the dredging and dredging projects of rivers and l...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to a device and a method for dewatering and drying mud under water. The device comprises a filter sieve, a filter press, a purification tower and a centrifugal machine, wherein the filter sieve is connected in series with a delivery pump through a pipeline; input pipelines of the filter press, the purification tower and the centrifugal machine are provided with flocculating agent adding machines; and a water outlet of the centrifugal machine is connected to an input port of the purification tower. A plurality of water treatment equipment are selected reasonably and a complete set of device is established based on the advantages of various equipment, so that the defect of low treatment efficiency of single equipment is overcome and dewatering and drying treatment can be efficiently performed on mud under water. The device and the method have the characteristics of reducing time needed by natural drying of a mud yard, improving mud treatment efficiency, greatly lowering dredging cost and meeting the requirement of mass, batched and engineered mud treatment, along with small floor area, low energy consumption, no blocking in continuous operation, high mud yield, good mobility, convenient arrangement on a mud treatment site and the like.

Description

Technical field [0001] The invention relates to the field of environmental protection equipment, in particular to an underwater sludge dewatering and drying device and method. Background technique [0002] In recent years, lake water pollution has caused serious accumulation of pollutants in sediments, with relatively high levels of nitrogen, phosphorus, organic matter, etc., which provided necessary nutrients for the outbreak of cyanobacteria and lake flooding, so the lake sediments were removed Particularly important. Lake sediment has a large water content, and the use of silt drying technology can greatly reduce the transportation pressure of subsequent treatment, improve the efficiency of dredging, and reduce the cost of dredging. At present, sludge drying technology at home and abroad mainly adopts chemical solidification method or dehydration drying method. The treatment object of the chemical curing method is mainly the sludge with high water content and fluidity. A lar...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C02F11/14
Inventor 倪其军高扬睢爱国杨栋
Owner 中国船舶重工集团公司第七〇二研究所
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap