Supercharge Your Innovation With Domain-Expert AI Agents!

Energy-saving raw material grinding process

A grinding and process technology, applied in the field of raw meal grinding energy-saving process, can solve the problems of small disposal scale, high disposal cost and high disposal cost, and achieve the effects of large processing capacity, good environmental benefits and strong adaptability

Inactive Publication Date: 2021-01-15
HUBEI BAIZHAOSHAN CEMENT CO LTD
View PDF0 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with incineration disposal technology, several other disposal technologies have obvious limitations: (1) It is not the final disposal technology, such as physical disposal technology only changes the material form and separates substances, and other disposal methods are required, generally as pretreatment (2) Too targeted, only for specific wastes, such as chemical treatment, biological treatment and stabilization disposal technology; (3) High disposal cost
Among them, waste incinerators (rotary incinerators, mechanical grate incinerators, fluidized bed incinerators, liquid injection furnaces, multi-chamber incinerators, cyclone incinerators) can process various forms of waste, but require a large amount of waste. Auxiliary fuel (oil) has high processing cost and small disposal scale, and requires a complex tail gas treatment system to meet environmental protection requirements. The generated incineration slag and incineration fly ash rich in dioxins and heavy metals still need further disposal. This is the existing technology deficiencies

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
  • Energy-saving raw material grinding process
  • Energy-saving raw material grinding process
  • Energy-saving raw material grinding process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1: when this industrial waste is semi-solid oil plant, it comprises the steps:

[0047] (1) Heating: The oil sludge is first transported to the oil sludge receiving bin 1 and electrically heated in the oil sludge receiving bin 1. An electric heating layer is installed on the outside of the oil sludge receiving bin 1, and the temperature of the inner cavity of the oil sludge receiving bin is maintained at 62°C. Then, The sludge in the sludge receiving bin 1 is transported to the disc dryer 3 through the screw feeder 2 and heated to 80°C to make the material flowable;

[0048] (2) Separation: the oil sludge heated by the disc dryer 3 is transported to the decanter centrifuge 5 by the plunger pump 4 to separate the mud phase solid and the oil phase liquid;

[0049] (3) Grinding and entering the kiln:

[0050] The mud phase solids separated in step (2) are crushed to the raw meal fineness with the colloid mill 6, specifically, when the mud phase solids are incom...

Embodiment 2

[0052] Embodiment 2: when this industrial waste is semi-solid oil plant, it comprises the steps:

[0053] (1) Heating: The oil sludge is first transported to the oil sludge receiving bin 1, and electrically heated in the oil sludge receiving bin 1. An electric heating layer is arranged on the outside of the oil sludge receiving bin 1. The temperature of the inner cavity of the oil sludge receiving bin 1 is maintained at 65°C, and then , transport the sludge in the sludge receiving bin 1 to the disc dryer 3 through the screw feeder 2 and heat it to 95°C to make the material flowable;

[0054] (2) Separation: the oil sludge heated by the disc dryer 3 is transported to the decanter centrifuge 5 by the plunger pump 4 to separate the mud phase solid and the oil phase liquid;

[0055] (3) Grinding and entering the kiln:

[0056] The mud phase solids separated in step (2) are crushed to the raw meal fineness with the colloid mill 6, specifically, when the mud phase solids are incomb...

Embodiment 3

[0058] Embodiment 3: when this industrial waste is semi-solid oil plant, it comprises the steps:

[0059] (1) Heating: The oil sludge is first transported to the oil sludge receiving bin 1 and electrically heated in the oil sludge receiving bin 1. An electric heating layer is arranged on the outside of the oil sludge receiving bin 1. The temperature of the inner cavity of the oil sludge receiving bin 1 is maintained at 68°C, and then , the sludge in the sludge receiving bin 1 is transported to the disc dryer 3 through the screw feeder 2 and heated to 100°C to make the material flowable;

[0060] (2) Separation: the oil sludge heated by the disc dryer 3 is transported to the decanter centrifuge 5 by the plunger pump 4 to separate the mud phase solid and the oil phase liquid;

[0061] (3) Grinding and entering the kiln:

[0062] The mud phase solids separated in step (2) are crushed to the raw meal fineness with the colloid mill 6, specifically, when the mud phase solids are in...

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 an energy-saving raw material grinding process. According to the energy-saving raw material grinding process provided by the invention, wastes are sorted, pretreated and ground, then thewastes are incinerated by utilizing an existing novel dry-process cement kiln system, ash residues are blended into a cement raw material, and harmful gas is decomposed at high temperature, so the heat value of combustible components in the wastes is fully utilized to calcine the raw material, available inorganic components in the waste ash residues are utilized to produce the cement raw material, and the problems of harmful gas emission pollution, secondary ash treatment and the like of a common incinerator are solved; and the process has good environmental benefits, high adaptability to a rotary kiln, large treatment capacity, simple, reliable, reasonable and feasible technology, capacity of completely utilizing the wastes, good social benefits and economic benefits, energy conservation, emission reduction and reduction in energy wasting.

Description

technical field [0001] The invention relates to an energy-saving raw meal grinding process, which belongs to the technical field of cement production. Background technique [0002] Waste was first disposed of by landfill, but waste landfill sites have high requirements for site selection, construction and operation, high operating costs, and stabilization treatment must be performed before landfill, otherwise it is easy to cause "secondary pollution" of toxic and harmful substances. secondary pollution". [0003] At present, waste disposal technologies mainly include: physical disposal technology, chemical treatment technology, biochemical disposal technology, stabilization and solidification disposal technology and incineration disposal technology. Compared with incineration disposal technology, several other disposal technologies have obvious limitations: (1) It is not the final disposal technology, such as physical disposal technology is only to change the material form ...

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 Applications(China)
IPC IPC(8): C04B7/44C04B7/24C10L1/00C10L5/48C02F11/13C02F11/127C02F11/10
CPCC02F11/10C02F11/127C04B7/24C04B7/4423C10L1/00C10L5/48C02F11/13Y02E50/30Y02P40/10Y02P40/125
Inventor 蔡长杰
Owner HUBEI BAIZHAOSHAN CEMENT CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com