CN110355190A - A kind of paint slag resource utilization process - Google Patents

A kind of paint slag resource utilization process Download PDF

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Publication number
CN110355190A
CN110355190A CN201910785945.1A CN201910785945A CN110355190A CN 110355190 A CN110355190 A CN 110355190A CN 201910785945 A CN201910785945 A CN 201910785945A CN 110355190 A CN110355190 A CN 110355190A
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CN
China
Prior art keywords
paint slag
removal
residue
technique
paint
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Granted
Application number
CN201910785945.1A
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Chinese (zh)
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CN110355190B (en
Inventor
孙英钦
郭献军
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Laiyang Chunfan Paint Co Ltd
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Laiyang Chunfan Paint Co Ltd
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Priority to CN201910785945.1A priority Critical patent/CN110355190B/en
Publication of CN110355190A publication Critical patent/CN110355190A/en
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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B02CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
    • B02CCRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
    • B02C23/00Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
    • B02C23/08Separating or sorting of material, associated with crushing or disintegrating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B09DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
    • B09BDISPOSAL OF SOLID WASTE
    • B09B3/00Destroying solid waste or transforming solid waste into something useful or harmless
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10BDESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
    • C10B53/00Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal

Abstract

The present invention relates to a kind of paint slag resource utilization process.Steps are as follows: pretreatment: High water cut paint slag being dehydrated, is crushed, the pretreated paint slag of moisture content≤20%, partial size≤20cm is obtained;Pyrolysis: paint slag after pretreatment is pyrolyzed, gas and carbonaceous residues are pyrolyzed out, wherein the gas being pyrolyzed out obtains the combustible gas and fuel oil of high heating value after condensing;Calcining: the carbonaceous residues are calcined, the carbon residue of carbonaceous residues is removed, obtains inorganic residues;Removal of impurities: the residue is sorted into removal metal impurities;Grinding: the residue after the removal of impurities is ground, and by sorting, obtains partial size≤80 mesh pigment or filler.Solid residue after paint Slag treatment of the present invention can be back to production paint;The fixed gas and cold oil for painting the generation of Slag treatment process are exotic fuels.

Description

A kind of paint slag resource utilization process
Technical field
The present invention relates to a kind of paint slag resource utilization process.
Background technique
Paint slag belongs to HW12 class hazardous waste.Currently, the domestic processing method to paint slag is mainly filled and is burned. Painting slag landfill, not only the available resources of slag is painted in waste, but also occupies valuable landfill yard resource, it is also possible to cause secondary pollution. Though painting slag and burning has minimizing, innoxious advantage, minimizing is limited, and incineration residue is still dangerous waste, it is also necessary to landfill stabilization, And waste the available resources of paint slag.Further, patent it is a kind of paint slag resource utilization method (application number: It 201610328279.5) is only the paint a kind of pretreated method of slag, i.e., by solid-liquid separation technique, resource utilization contains organic matter Waste liquid, but do not provide the processing method of solid residue.Patent paint slag pyrolytic process and its device (application number: 201610813273.7) it proposes that a kind of paint slag pyrolysis utilizes the technique and equipment of combustible gas, but is not directed to the processing of pyrolysis residue And disposal options.
Summary of the invention
Thoroughly to solve the problems, such as that paint slag resource utilization, the present invention propose a kind of paint slag resource utilization process.The technique Paint slag resource utilization may make to maximize.
The present invention provides a kind of paint slag resource utilization process, and steps are as follows:
(1) it pre-processes: High water cut paint slag being dehydrated, is crushed, the pre- place of granularity≤20cm, moisture content≤20% is obtained Paint slag after reason;
(2) it cleans: the paint slag removal of impurities removal metal impurities that step (1) is obtained;
(3) grind: the paint slag that step (2) is obtained is ground, and by sorting, obtains the production of partial size≤80 mesh Product, i.e. pigment or filler.
Further, the technique further includes the pyrolysis step between the pre-treatment step and the removal step Suddenly, specifically: the paint slag obtained after the pre-treatment step is pyrolyzed, is pyrolyzed out gas and carbonaceous residues, then will contain Carbon residue carries out the removal step processing;Wherein, pyrolysis temperature is 200-800 DEG C, pyrolysis time 10-60min;It is pyrolyzed out Gas the combustible gas and fuel oil of high heating value are obtained after condensing.
Further, the technique further includes the calcining step between the pre-treatment step and the removal step Suddenly, specifically: the paint slag obtained after the pre-treatment step is calcined, organic matter and moisture is removed, obtains inorganic residues, Inorganic residues are subjected to the removal step processing again;Wherein, calcination temperature is 300-800 DEG C, calcination time 10-60min.
Further, the technique further includes the calcining step between the pyrolysis step and the removal step, Specifically: the carbonaceous residues are calcined, the carbon residue of carbonaceous residues is removed, obtains inorganic residues;Wherein, calcination temperature is 300-800 DEG C, calcination time 10-60min.
The utility model has the advantages that
Paint slag of the present invention is prepared into pigment or filler after processing can be back to production paint;Paint slag of the present invention has unit Divide and inorganic component all realizes resource utilization.Solid residue after paint Slag treatment can be back to production paint;Paint Slag treatment The fixed gas and cold oil that process generates are exotic fuels.
Specific embodiment
Embodiment 1:
A kind of paint slag resource utilization process, including pretreatment unit+pyrolysis unit+calcining unit+impurity removing unit+grinding Unit specifically includes: by High water cut paint slag (moisture content > 20%) be dehydrated and be crushed pretreatment after, obtain moisture content≤20%, Partial size≤5cm particulate matter;After 450 DEG C are pyrolyzed 1 hour, the carbonaceous residues of black or brown can be obtained, in the carbonaceous residues Carbon content 1-30%, inorganic mixture content 70-99%;It is calcined 30 minutes using 600 DEG C, removes the carbon residue of pyrolysis residue, Obtain redness of the skin or complexion or brown light-weight inorganic calcining residue;After metal impurities in the inorganic calcining residue of removal of impurities removal, grinds, sorts To partial size≤200 mesh redness of the skin or complexion or brown, to be back to production paint.
The method of above-mentioned removing metal impurities is using conventional removal metal impurities method, as ferrous metal impurity passes through magnetic Mode is selected to remove.
Embodiment 2:
A kind of paint slag resource utilization process, including pretreatment unit+pyrolysis unit+impurity removing unit+grinding unit, specifically It include: that paint slag obtains moisture content≤20%, partial size≤5cm particulate matter after pretreatment;After 450 DEG C are pyrolyzed 1 hour, it can obtain To black or the carbonaceous residues of brown, carbon content 1-30%, inorganic mixture content 70-99% in the carbonaceous residues;Removal of impurities is gone After the metal impurities of carbonaceous residues, grinding, sorting obtain partial size≤200 mesh black pigment.
Embodiment 3:
A kind of paint slag resource utilization process, including pretreatment unit+calcining unit+impurity removing unit+grinding unit, specifically It include: that paint slag obtains moisture content≤20%, partial size≤5cm particulate matter after pretreatment;It calcines 30 minutes and obtains by 600 DEG C Redness of the skin or complexion or brown light-weight inorganic calcine residue;After removal of impurities removal metal impurities, grinding, sorting obtain partial size≤200 mesh redness of the skin or complexion Or brown.
Embodiment 4:
A kind of paint slag resource utilization process, including pretreatment unit+impurity removing unit+grinding unit, specifically include: paint slag Moisture content≤20%, partial size≤5cm particulate matter are obtained after pretreatment;After removal of impurities removal metal impurities;Grinding, sorting obtain Partial size≤200 mesh grey or brown pigments.Mechanico-chemical reaction occurs for process of lapping, and pretreated paint slag heats up and takes off Water, part larger molecular organics are changed into the fuel gas and carbon residue of small molecule, realize that paint slag is dry and uniforms.
Resin interference product quality and grinding performance, index are low preferably;Carbon residue influences the color of product, and index is low to be It is good.As can be seen from Table 1, after calcination processing, the resin and residual carbon content for painting slag are substantially reduced, obtained pigment product quality Preferably.Wherein, the resin in 1 products obtained therefrom of embodiment and residual carbon content are 0, are optimal;3 products obtained therefrom of embodiment only contains A small amount of carbon residue;The quality of 2 product pigment of embodiment is general;Can be mixed in 4 product residue of embodiment a certain amount of organic matter and Carbon residue, obtained product quality are lower.
The product component analytical table of embodiment 1-4
Component (%) Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4
Calcium carbonate 19.0 15.0 18.7 13.6
Barium sulfate 8.0 7.1 7.8 6.5
Silica 24.0 20.3 23.6 18.8
Titanium dioxide 9.0 8.0 8.8 7.0
Aluminum oxide 5.0 4.1 4.8 3.7
Zinc oxide 4.5 4.0 4.5 4.1
Talcum powder 20.1 12.8 19.6 11.5
Iron oxide 4.4 3.2 4.4 3.3
Potassium oxide 0.14 0.2 0.16 0.2
Sodium oxide molybdena 0.26 0.3 0.27 0.3
Copper oxide 1.5 1.3 1.5 1.3
Phosphorus pentoxide 0.1 0.3 0.17 0.3
Magnesia 4.0 5.8 4.1 4.4
Resin 0 0 0 15.0
Carbon residue 0 17.6 1.6 10.0
The present invention can be summarized with others without prejudice to the concrete form of spirit or essential characteristics of the invention.Therefore, nothing By from the point of view of which point, the embodiment above of the invention can only all be considered the description of the invention and cannot limit this hair Bright, claims indicate the scope of the present invention, and above-mentioned explanation does not point out the scope of the present invention, therefore, with this Any change in the comparable meaning and scope of claims of invention is all considered as including in claim of the invention In the range of book.

Claims (5)

1. a kind of paint slag resource utilization process, which is characterized in that the processing step includes:
(1) it pre-processes: High water cut paint slag being dehydrated, is crushed, after obtaining the pretreatment of granularity≤20cm, moisture content≤20% Paint slag;
(2) it cleans: the paint slag removal of impurities removal metal impurities that step (1) is obtained;
(3) grind: the paint slag that step (2) is obtained is ground, and by sorting, is obtained partial size≤80 mesh pigment or is filled out Material.
2. technique as described in claim 1, which is characterized in that the technique further includes positioned at the pre-treatment step and described Pyrolysis step between removal step, specifically: the paint slag obtained after the pre-treatment step is pyrolyzed, outlet is pyrolyzed Body and carbonaceous residues, then the carbonaceous residues are subjected to the removal step processing;
Wherein, pyrolysis temperature is 200-800 DEG C, pyrolysis time 10-60min;The gas being pyrolyzed out obtains high fever after condensing The combustible gas and fuel oil of value.
3. technique as described in claim 1, which is characterized in that the technique further includes positioned at the pre-treatment step and described Calcining step between removal step, specifically: the pretreated paint slag is calcined, carbon residue is removed, obtains inorganic Residue;
Wherein, calcination temperature is 300-800 DEG C, calcination time 10-60min.
4. technique as claimed in claim 2, which is characterized in that the technique further includes positioned at the pyrolysis step and described removing Calcining step between miscellaneous step, specifically: the carbonaceous residues are calcined, the carbon residue of carbonaceous residues is removed, obtains nothing Machine residue;
Wherein, calcination temperature is 300-800 DEG C, calcination time 10-60min.
5. technique as claimed in claim 2, which is characterized in that the pyrolysis temperature is 400-500 DEG C.
CN201910785945.1A 2019-08-23 2019-08-23 Paint slag resource utilization process Active CN110355190B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910785945.1A CN110355190B (en) 2019-08-23 2019-08-23 Paint slag resource utilization process

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Application Number Priority Date Filing Date Title
CN201910785945.1A CN110355190B (en) 2019-08-23 2019-08-23 Paint slag resource utilization process

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CN110355190B CN110355190B (en) 2021-06-15

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111996019A (en) * 2020-07-13 2020-11-27 南通天地和环保科技有限公司 Paint-containing waste cracking process for harmless and recycling treatment
CN112210239A (en) * 2020-10-14 2021-01-12 日照德联化工有限公司 Waste paint slag recovery treatment process
CN112456577A (en) * 2020-12-08 2021-03-09 莱阳市春帆漆业有限责任公司 Paint waste residue sewage treatment all-in-one
WO2021138933A1 (en) * 2020-01-06 2021-07-15 杰瑞环保科技有限公司 Comprehensive treatment device for waste paint slag

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0484332A1 (en) * 1989-07-22 1992-05-13 Gfr Aufbereitung Reststoffe Process and device for utilizing paint shop residues, etc.
CN105038370A (en) * 2015-08-19 2015-11-11 四川星源特种涂料有限公司 Application of paint waste residues and method for recycling and reapplying paint waste residues
CN106322386A (en) * 2016-09-09 2017-01-11 缪卫东 Paint slag pyrolysis process and device thereof
CN107033651A (en) * 2017-04-21 2017-08-11 泰州市涂瑞装饰材料有限公司 A kind of coating composite prepared based on paint slag and its preparation method
CN109226185A (en) * 2018-09-13 2019-01-18 如东中惠再生资源有限公司 Paint slag recycling system device and its production technology

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0484332A1 (en) * 1989-07-22 1992-05-13 Gfr Aufbereitung Reststoffe Process and device for utilizing paint shop residues, etc.
CN105038370A (en) * 2015-08-19 2015-11-11 四川星源特种涂料有限公司 Application of paint waste residues and method for recycling and reapplying paint waste residues
CN106322386A (en) * 2016-09-09 2017-01-11 缪卫东 Paint slag pyrolysis process and device thereof
CN107033651A (en) * 2017-04-21 2017-08-11 泰州市涂瑞装饰材料有限公司 A kind of coating composite prepared based on paint slag and its preparation method
CN109226185A (en) * 2018-09-13 2019-01-18 如东中惠再生资源有限公司 Paint slag recycling system device and its production technology

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021138933A1 (en) * 2020-01-06 2021-07-15 杰瑞环保科技有限公司 Comprehensive treatment device for waste paint slag
CN111996019A (en) * 2020-07-13 2020-11-27 南通天地和环保科技有限公司 Paint-containing waste cracking process for harmless and recycling treatment
CN112210239A (en) * 2020-10-14 2021-01-12 日照德联化工有限公司 Waste paint slag recovery treatment process
CN112456577A (en) * 2020-12-08 2021-03-09 莱阳市春帆漆业有限责任公司 Paint waste residue sewage treatment all-in-one

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Denomination of invention: A resource utilization process of paint residue

Effective date of registration: 20220318

Granted publication date: 20210615

Pledgee: CITIC Bank Yantai branch

Pledgor: Laiyang Chunfan paint Co.,Ltd.

Registration number: Y2022980002755