CN105525098A - Recovery treatment method for waste CRT display glass shell - Google Patents
Recovery treatment method for waste CRT display glass shell Download PDFInfo
- Publication number
- CN105525098A CN105525098A CN201610072430.3A CN201610072430A CN105525098A CN 105525098 A CN105525098 A CN 105525098A CN 201610072430 A CN201610072430 A CN 201610072430A CN 105525098 A CN105525098 A CN 105525098A
- Authority
- CN
- China
- Prior art keywords
- lead
- smelting
- waste
- heat treatment
- vacuum heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
- C22B7/002—Dry processes by treating with halogens, sulfur or compounds thereof; by carburising, by treating with hydrogen (hydriding)
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B13/00—Obtaining lead
- C22B13/02—Obtaining lead by dry processes
- C22B13/025—Recovery from waste materials
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Metallurgy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Organic Chemistry (AREA)
- Geology (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Glass Melting And Manufacturing (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention relates to a recovery treatment method for a waste CRT display glass shell and belongs to the field of resource utilization of solid waste. The method comprises the following steps: disassembling a waste CRT display; then performing crushing and grinding treatment of the obtained CRT glass shell, and separating out steel mesh and other substances to obtain lead glass particles; mixing and grinding the obtained lead glass particles and calcium sulfide, and performing grading to obtain a mixture; performing vacuum heat treatment of the mixture, and performing crushing and grading to obtain an lead-smelting auxiliary material; and mixing the lead-smelting auxiliary material, a lead-smelting raw material and a smelting solvent, and adding the mixture of the lead-smelting auxiliary material, the lead-smelting raw material and the smelting solvent into a lead-smelting furnace for lead smelting to obtain lead bullion and lead-smelting slag. Waste gas produced during vacuum heat treatment as well as waste gas produced during the lead-smelting process is introduced into a special waste gas treatment system for purification treatment. The method realizes recycling of the waste CRT display, has a simple and efficient process and is free of secondary pollution.
Description
Technical field:
The invention provides a kind of recovery and treatment method of waste and old CRT monitor glass bulb, belong to field of solid waste resource utilization.
Technical background:
According to the relevent statistics, the social recoverable amount of China's televisor is more than 400,000,000, and wherein very major part is the product entering family late 1980s, has arrived and has scrapped the time limit.From 2003, China had the televisor of more than 5,000,000 to need to scrap every year.Along with country's striding forward to informationized society, have the robot calculator of more than 3,000 ten thousand to enter family at present every year, the display equipment of most computer be CRT monitor.
The glass bulb of CRT monitor is welded by low-melting point sealing glass primarily of tube panel glass, neck glass, pipe cone glass.Tube panel glass is containing 0-4% plumbous oxide, and pipe cone glass is containing 22-23% plumbous oxide, and neck glass is containing 32-35% plumbous oxide, and seal glass plumbous oxide content reaches 78%.Therefore, CRT monitor glass bulb has recovery value.Meanwhile, due to lead glass reutilization technology difficulty, being regarded as the potentially dangerous solid waste source of environmental pollution always, security landfill process can only being carried out by having the unit of qualification at present.
Containing a large amount of silica compositions in CRT monitor glass bulb lead glass, it is one of plumbous slag former raw material of refining, lead simultaneously in lead glass is the important plumbous source of one of refining leady raw materials, is undertaken processing will be had huge economic worth and environmental value by effective recovery method.
Summary of the invention
The object of the invention is under vacuum, the lead in waste and old CRT monitor glass bulb and sulfurated lime are reacted and generate more stable lead sulfide, calcium and silicate form Calucium Silicate powder.Lead sulfide is the important source material of refining lead, and the silico-calcium compounds such as Calucium Silicate powder are the main components of plumbous smelting slag making agent, thus realize high-valued recycling.
The present invention includes following steps:
(1) waste and old CRT monitor is disassembled, be separated and obtain CRT glass bulb;
(2) the CRT glass bulb obtained in step (1) is carried out crushing milled processed, isolate the materials such as steel mesh, obtain lead glass particulate matter;
(3) the lead glass particulate matter obtained in step (2) and sulfurated lime are carried out compound abrasive, in the process of compound abrasive, lead glass particulate matter mass content is 70-75%, the mass content of sulfurated lime is 25-30%, both mass content sums are 100%, carry out classification after abrasive material and obtain compound, compound granularity is-100 orders;
(4) compound obtained in step (3) is placed in vacuum heat treatment system to process, system pressure is 20kpa, Heating temperature is 600 DEG C-720 DEG C, heat treatment time is 30-50min, waste gas through vacuum pump extraction enters special waste gas pollution control and treatment system and disposes, and obtains vacuum heat treatment material;
(5) the vacuum heat treatment material obtained in step (4) is carried out broken classification to obtain refining plumbous auxiliary material, refine plumbous auxiliary material granularity for-100 orders.
(6) by plumbous for the refining obtained in step (5) auxiliary material and refining leady raw materials, smelts solvent and carries out mix, add in lead-smelting furnace and carry out lead and smelt, obtain lead bullion and refine lead skim.
Principle and advantage:
1, by under vacuum, the flint glass in CRT glass bulb and sulfurated lime are reacted, generate the plumbous auxiliary material of the refining such as lead sulfide and Calucium Silicate powder, realize high-efficiency comprehensive utilization;
2, under vacuum condition by the reaction such as plumbous oxide, silicon-dioxide in sulfurated lime and flint glass, speed of response improves greatly, the reaction times shorten, temperature of reaction reduce, reaction efficiency is higher.
3, whole process and simple to operate, tail gas carries out special disposal, realizes whole process non-secondary pollution.
Accompanying drawing explanation
Fig. 1 is a kind of process flow sheet of recovery and treatment method of waste and old CRT monitor glass bulb
Embodiment:
Embodiment 1
Waste and old CRT monitor is disassembled, is separated and obtains CRT glass bulb; Then CRT glass bulb is carried out crushing milled processed, isolate the materials such as steel mesh, obtain lead glass particulate matter; The lead glass particulate matter obtained and sulfurated lime are carried out compound abrasive, and in the process of compound abrasive, lead glass particulate matter mass content is 75%, and the mass content of sulfurated lime is 25%, carry out classification after abrasive material and obtain compound, compound granularity is-100 orders; The compound obtained is placed in vacuum heat treatment system process, system pressure is 20kpa, and Heating temperature is 720 DEG C, and heat treatment time is 50min, and the waste gas through vacuum pump extraction enters special waste gas pollution control and treatment system and disposes, and obtains vacuum heat treatment material; Vacuum heat treatment material is carried out broken classification to obtain refining plumbous auxiliary material, refine plumbous auxiliary material granularity for-100 orders.By plumbous for the refining obtained auxiliary material and refining leady raw materials, smelts solvent and carry out mix, add in lead-smelting furnace and carry out lead and smelt, obtain lead bullion and refine lead skim.
Embodiment 2
Waste and old CRT monitor is disassembled, is separated and obtains CRT glass bulb; Then CRT glass bulb is carried out crushing milled processed, isolate the materials such as steel mesh, obtain lead glass particulate matter; The lead glass particulate matter obtained and sulfurated lime are carried out compound abrasive, and in the process of compound abrasive, lead glass particulate matter mass content is 70%, and the mass content of sulfurated lime is 30%, carries out classification and obtain compound after abrasive material, and compound granularity is-100 orders; The compound obtained is placed in vacuum heat treatment system process, system pressure is 20kpa, and Heating temperature is 600 DEG C, and heat treatment time is 30min, and the waste gas through vacuum pump extraction enters special waste gas pollution control and treatment system and disposes, and obtains vacuum heat treatment material; Vacuum heat treatment material is carried out broken classification to obtain refining plumbous auxiliary material, refine plumbous auxiliary material granularity for-100 orders.By plumbous for the refining obtained auxiliary material and refining leady raw materials, smelts solvent and carry out mix, add in lead-smelting furnace and carry out lead and smelt, obtain lead bullion and refine lead skim.
Embodiment 3
Waste and old CRT monitor is disassembled, is separated and obtains CRT glass bulb; Then CRT glass bulb is carried out crushing milled processed, isolate the materials such as steel mesh, obtain lead glass particulate matter; The lead glass particulate matter obtained and sulfurated lime are carried out compound abrasive, and in the process of compound abrasive, lead glass particulate matter mass content is 73%, and the mass content of sulfurated lime is 27%, carries out classification and obtain compound after abrasive material, and compound granularity is-100 orders; The compound obtained is placed in vacuum heat treatment system process, system pressure is 20kpa, and Heating temperature is 650 DEG C, and heat treatment time is 40min, and the waste gas through vacuum pump extraction enters special waste gas pollution control and treatment system and disposes, and obtains vacuum heat treatment material; Vacuum heat treatment material is carried out broken classification to obtain refining plumbous auxiliary material, refine plumbous auxiliary material granularity for-100 orders.By plumbous for the refining obtained auxiliary material and refining leady raw materials, smelts solvent and carry out mix, add in lead-smelting furnace and carry out lead and smelt, obtain lead bullion and refine lead skim.
Claims (3)
1. the recovery and treatment method of a waste and old CRT monitor glass bulb, it is characterized in that: with waste and old CRT monitor for raw material, lead glass particulate matter is obtained through disassembling, crushing grinding separation, add sulfurated lime and carry out compound abrasive, vacuum heat treatment, fragmentation, smelting batching and plumbous smelting procedure, finally obtain lead bullion and lead skim, the flue gas that vacuum heat treatment and plumbous smelting process produce enters corresponding smoke processing system, specifically comprises the following steps:
(1) disassemble: waste and old CRT monitor is disassembled, be separated and obtain CRT glass bulb;
(2) be separated: the CRT glass bulb obtained in step (1) is carried out crushing milled processed, isolates the materials such as steel mesh, obtain lead glass particulate matter;
(3) compound abrasive: the lead glass particulate matter obtained in step (2) and sulfurated lime are carried out compound abrasive, then carries out classification and obtains compound, and compound granularity is-100 orders;
(4) vacuum heat treatment: the compound obtained in step (3) is placed in vacuum heat treatment system and processes, the waste gas through vacuum pump extraction enters special waste gas pollution control and treatment system and disposes, and obtains vacuum heat treatment material;
(5) broken classification: the vacuum heat treatment material obtained in step (4) is carried out broken classification and obtains refining plumbous auxiliary material, refines plumbous auxiliary material granularity for-100 orders;
(6) smelt batching to smelt with plumbous: by plumbous for the refining obtained in step (5) auxiliary material and refining leady raw materials, smelts solvent and carry out mix, add in lead-smelting furnace and carry out lead smelting, obtain lead bullion and refine lead skim.
2. the recovery and treatment method of a kind of waste and old CRT monitor glass bulb according to claim 1, it is characterized in that: in compound abrasive process, lead glass particulate matter mass content is 70-75%, and the mass content of sulfurated lime is 25-30%, and both mass content sums are 100%.
3. the recovery and treatment method of a kind of waste and old CRT monitor glass bulb according to claim 1, is characterized in that: the system pressure of vacuum heat treatment is 20kpa, and Heating temperature is 600 DEG C-720 DEG C, and heat treatment time is 30-50min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610072430.3A CN105525098A (en) | 2016-02-02 | 2016-02-02 | Recovery treatment method for waste CRT display glass shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610072430.3A CN105525098A (en) | 2016-02-02 | 2016-02-02 | Recovery treatment method for waste CRT display glass shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105525098A true CN105525098A (en) | 2016-04-27 |
Family
ID=55767618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610072430.3A Pending CN105525098A (en) | 2016-02-02 | 2016-02-02 | Recovery treatment method for waste CRT display glass shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105525098A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110981161A (en) * | 2019-12-17 | 2020-04-10 | 湖南恒晟环保科技有限公司 | Lead-containing glass comprehensive recycling device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6132488A (en) * | 1996-02-16 | 2000-10-17 | Aichi Steel Works, Ltd. | Process of treating waste containing zinc oxide |
| CN102191383A (en) * | 2011-04-22 | 2011-09-21 | 深圳市格林美高新技术股份有限公司 | Treatment method for waste printed circuit board |
| CN104141043A (en) * | 2014-06-27 | 2014-11-12 | 北京科技大学 | Method for co-processing heavy metal waste gypsum and lead glass |
-
2016
- 2016-02-02 CN CN201610072430.3A patent/CN105525098A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6132488A (en) * | 1996-02-16 | 2000-10-17 | Aichi Steel Works, Ltd. | Process of treating waste containing zinc oxide |
| CN102191383A (en) * | 2011-04-22 | 2011-09-21 | 深圳市格林美高新技术股份有限公司 | Treatment method for waste printed circuit board |
| CN104141043A (en) * | 2014-06-27 | 2014-11-12 | 北京科技大学 | Method for co-processing heavy metal waste gypsum and lead glass |
Non-Patent Citations (2)
| Title |
|---|
| 何凤姣: "《无机化学》", 30 June 2006 * |
| 张志杰: "《材料物理化学》", 31 May 2006 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110981161A (en) * | 2019-12-17 | 2020-04-10 | 湖南恒晟环保科技有限公司 | Lead-containing glass comprehensive recycling device |
| CN110981161B (en) * | 2019-12-17 | 2023-09-15 | 湖南恒晟环保科技有限公司 | Comprehensive recycling device for lead-containing glass |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US12054673B2 (en) | Green resource-generating method based on thermal mass synergy of waste integrated circuit board | |
| CN107083488B (en) | A kind of waste lead acid battery lead cream bath smelting processing method | |
| WO2019042157A1 (en) | Comprehensive resourceful treatment system for electronic waste and method therefor | |
| WO2019042156A1 (en) | Resource recovery system for electronic waste | |
| CN106381391B (en) | A kind of selecting smelting combination processing method of the more metal dusts of old circuit board | |
| CN210085535U (en) | Resource utilization system for waste incineration power generation ash | |
| CN108754134A (en) | A kind of red mud comprehensive utilization process | |
| CN110093471A (en) | A kind of efficient low-consume red mud method of comprehensive utilization | |
| CN103937983B (en) | Useless cathode tube flint glass and used and scrapped battery lead plaster cooperative disposal method | |
| CN115353115A (en) | Low-carbon high-efficiency extraction of high-purity SiO from high-silicon hematite tailings 2 Method (2) | |
| CN108380360B (en) | Production process of steel slag and iron fine powder | |
| CN102826562B (en) | Method for preparing water glass by utilizing waste lead-containing glass and separating lead-containing compound | |
| CN113526514A (en) | A kind of method that utilizes iron tailings to prepare silicon micropowder | |
| CN105525098A (en) | Recovery treatment method for waste CRT display glass shell | |
| CN110205495B (en) | Pyrogenic process comprehensive recycling method for copper-containing and nickel-containing sludge | |
| CN114888043B (en) | Treatment method and device for secondary aluminum ash | |
| CN101450843B (en) | Iron and aluminum complex ore comprehensive utilization method | |
| CN104141043B (en) | One heavy metal species waste gypsum and the method for lead glass cooperative disposal | |
| CN113215394B (en) | Treatment method of stone coal | |
| CN108707759B (en) | Method for recovering lead from lead-containing glass | |
| CN102219922B (en) | Comprehensive recycling method of resin component in discarded circuit board waste | |
| CN102161514B (en) | Method for extracting metal hydroxide from gangue | |
| CN109942202B (en) | Method for producing rock wool board by comprehensively utilizing electric furnace ash | |
| CN116121543B (en) | Method for recycling antimony lead and noble metal by sulfuration reduction smelting of dearsenified lead anode slime | |
| CN114315255B (en) | Method for preparing high-purity alloy by using electric furnace dust removal ash and recycling tailings |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20161219 Address after: 410100 Hunan province Changsha Changsha City Economic and Technological Development Zone Bancang Road No. 29 new Changhai center service outsourcing base 3 A block 2 building 204 Applicant after: Changsha convergent Environment Technology Co., Ltd. Address before: 410100 Hunan Province, Changsha County city Xingsha street Changsha sealing knife Ridge Community Kaiyuan Road No. 65 Building 2 building 1803 Garden Applicant before: Zhou Yihui |
|
| TA01 | Transfer of patent application right | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160427 |
|
| RJ01 | Rejection of invention patent application after publication |