Method for producing tree pit cover plate from paper mill sludge

A papermaking sludge and cover plate technology, which is applied in chemical instruments and methods, water/sludge/sewage treatment, dehydration/drying/concentrated sludge treatment, etc., can solve the problems of consuming socially beneficial resources and increasing manufacturing costs, etc. Achieve the effect of saving beneficial resources, reducing environmental pollution and reducing production costs

Inactive Publication Date: 2018-02-06
上海永玺环境科技有限公司
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the materials of tree hole covers mainly include cast iron, wood, concrete and composite materials, etc. Tree hole covers of various mat

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The method that the present invention adopts papermaking sludge to manufacture tree hole cover plate comprises the steps:

[0016] Step 1. Add a mineralizer to the papermaking sludge with a water content greater than 60% and mix it thoroughly. Under the action of the mineralizer, quickly combine the void water and free water of the papermaking sludge and condense and volatilize on the surface of the papermaking sludge particles. ;

[0017] Step 2. Add flocculant to the papermaking sludge treated in step 1 and fully mix it, so that the papermaking sludge is basically formed in a short time and has a certain plasticity;

[0018] Step 3: Add coupling agent to the papermaking sludge treated in step 2 and mix thoroughly, change the surface properties of papermaking sludge particles under the action of coupling agent, overcome the hydration and electrostatic interaction between particles, and make the particles and Better contact between particles;

[0019] Step 4. Add reta...

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 discloses a method for manufacturing a tree hole cover plate by using papermaking sludge. In the method, a mineralizer, a flocculant, a coupling agent, a retarder and an expansion agent are respectively added to the papermaking sludge for treatment, so that the papermaking sludge is treated with The moisture content of the mud is reduced from more than 60% to less than 10%, so that the papermaking sludge can meet the requirements of stabilization, harmlessness, reduction and resource utilization, and then the papermaking sludge is crushed and homogenized to form Fine powder, papermaking sludge fine powder is added with corresponding materials and stirred by a high-speed mixer. After stirring, the material is injected into the tree hole cover shaping die from the extruder, and the melt in the shaping die is cooled to obtain the tree hole cover plate. The method effectively treats the papermaking sludge to make the tree hole cover, which reduces the production cost of the tree hole cover, saves beneficial resources, reduces the pollution of the papermaking sludge to the environment, and has greater social and economic benefits.

Description

technical field [0001] The invention relates to a method for manufacturing tree hole cover boards by using papermaking sludge. Background technique [0002] Street trees play an irreplaceable role in urban greening, and are widely used in roads, parks, street green belts and green shelters in various places; and the tree hole cover of street trees is an important part of street tree facilities. Material, application, etc. have an important impact on the landscape appearance, healthy growth and pedestrian and vehicle traffic of street trees. [0003] At present, the materials of the tree hole cover mainly include cast iron, wood, concrete and composite materials, etc. The tree hole cover of various materials has its own advantages and disadvantages, but it consumes the beneficial resources of the society and relatively increases the manufacturing cost. The papermaking sludge is a waste in the papermaking process and has great pollution. It needs to spend a lot of manpower an...

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): C02F11/14B29C44/04C02F103/28
CPCC02F11/14B29C44/04C02F2103/28C02F2303/06
Inventor 郁永清
Owner 上海永玺环境科技有限公司
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