Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Spiral-flow type elutriation and separation device for dredging sludge and sludge elutriation pretreatment method of device

A technology for communicating sludge and separating devices, which is applied in water/sludge/sewage treatment, sludge treatment, chemical instruments and methods, etc. To achieve the effect of reducing water consumption, shortening elutriation time, and improving elutriation efficiency

Active Publication Date: 2015-04-15
SHANGHAI MUNICIPAL ENG DESIGN INST GRP
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a swirl type ditch sludge elutriation and separation device, which can solve the problems of excessive water consumption, low separation efficiency and regular maintenance of the circulating pump system in the pretreatment process of ditch sludge elutriation

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
  • Spiral-flow type elutriation and separation device for dredging sludge and sludge elutriation pretreatment method of device
  • Spiral-flow type elutriation and separation device for dredging sludge and sludge elutriation pretreatment method of device
  • Spiral-flow type elutriation and separation device for dredging sludge and sludge elutriation pretreatment method of device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] As shown in the figure, a swirling ditch sludge elutriation and separation device includes a sludge receiving and mixing tank 2, which is characterized in that the sludge receiving and mixing tank 2 is equipped with a steel platform grid 3, and a steel platform grid 3 is provided with a discharge chute 1, the grid spacing of the steel platform grille 3 is 5cm to 10cm, and the center of the sludge receiving mixing tank 2 is provided with a water collection cylinder, which includes a sewage collection cylinder 7, and the top of the sewage collection cylinder is set There is a scum collecting tank 8, the bottom of the sludge receiving and mixing tank 2 is a conical tank with a taper of 2:1 to 3:1, the side of the sludge receiving and mixing tank 2 is provided with a water inlet pipe 10, and the bottom of the sewage collecting tank 7 is provided with an outlet Water pipe 11, the bottom of the sludge receiving mixing tank is sealed, and the outlet pipe and the sludge receivin...

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

PropertyMeasurementUnit
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a spiral-flow type elutriation and separation device for dredging sludge. The device comprises a sludge receiving and agitating tank, and is characterized in that a steel platform grating is arranged above the sludge receiving and agitating tank; an underwater agitator is arranged around the sludge receiving and agitating tank; and the centre of the sludge receiving and agitating tank is provided with a water collecting barrel that comprises a sewage collecting barrel; a dross collecting tank is arranged above the sewage collecting barrel; the bottom of the sludge receiving and agitating tank is tapered; a water inlet pipe is arranged at one side surface of the sludge receiving and agitating tank; and a water outlet pipe is arranged at the bottom of the sewage collecting barrel. The problems that water consumption is too much and the separation efficiency is low in the process of elutriation pretreatment for the dredging sludge are solved. As the recycle ratio of elutriated sewage and the separation efficiency are improved, compared with a traditional plug flow type separation device, the device saves water by 30%-50%, and the elutriation time is shortened by more than 1 / 3.

Description

technical field [0001] The invention relates to the field of trench sludge treatment, in particular to a cyclone type trench sludge elutriation and separation device and a sludge elutriation pretreatment method thereof. Background technique [0002] Ditch sludge is part of the rainwater and sewage that is easily settled during pipeline transportation and gradually accumulates in the pipeline. It is mainly composed of sand, gravel, and a small amount of organic matter. It can be used as an auxiliary raw material for building materials. Waste utilization is carried out, but at the same time, a large amount of heavy metals and pathogenic microorganisms have accumulated in the trench sludge. If not properly treated, it will not only cause secondary pollution of the environment, but also pose a great threat to human health. Compared with the solid matter of channel sludge in western developed countries, which is basically inorganic, the feature of channel sludge in my country is ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/00
Inventor 邹锦林赵国志王艳明
Owner SHANGHAI MUNICIPAL ENG DESIGN INST GRP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com