阅读说明：本技术 一种废油漆渣的处理方法 (A kind of processing method of waste painting slag ) 是由 方昭环 蒋璐 吴浩琨 赵庆彬 卫志瑶 李娇燕 于 2019-08-23 设计创作，主要内容包括：本发明公开了一种废油漆渣的处理方法,涉及工业固废处理技术领域。所提供的废油漆渣的处理方法,包括“预处理+破碎+配伍＋混合+焚烧+填埋”的处理工艺,具体包括固液分离,对液相废物进行处理,对固相废物进行破碎,并进行焚烧配伍,以及充分混合后焚烧,焚烧过程中产生的烟气经烟气处理系统处理合格后,检测达标后排放,焚烧过程中,焚烧残渣经检测合格后进行填埋处理。本发明所提供的一种废油漆渣的处理方法,可以使使残渣灼烧减率低于5%,低于规范要求标准,避免后续处理；而且工艺成本低,操作简单,不产生二次污染,除杂效果好、节约动力和油漆的利用率高。(The invention discloses a kind of processing methods of waste painting slag, are related to Industrial Solid Waste processing technology field.The processing method of provided waste painting slag, treatment process including " pretreatment+broken+compatibility+mixing+burning+landfill ", separation of solid and liquid is specifically included, liquid phase waste is handled, solid phase waste is crushed, and carry out burning compatibility, and burned after being sufficiently mixed, the flue gas generated in burning process detects rear discharge up to standard after smoke processing system processing is qualified, in burning process, incineration residue carries out landfill disposal after detection is qualified.A kind of processing method of waste painting slag provided by the present invention can make residue calcination lapse rate lower than 5%, be lower than code requirement standard, avoid subsequent processing；And process costs are low, and it is easy to operate, do not generate secondary pollution, good impurity removing effect, the utilization rate height for saving power and paint.)

1. a kind of processing method of waste painting slag, characterized by the following steps:

(1) waste painting slag is classified, detection, the physics shape of Oil Paint Slag is sampled according to the physical state of Oil Paint Slag respectively State is divided into solid phase and liquid phase, if solid-liquid mix, be separated by solid-liquid separation after abundant static layering, then respectively by standard method into Row sample detection formulates pretreating scheme according to detection data；

(2) for liquid phase waste liquid in step (1), according to the COD of waste, calorific value and waste liquid materializing strategy effect, to can be at materialization Carry out materializing strategy is collected separately in the waste liquid of reason, for can not materializing strategy part, processing, then root are filtered to waste liquid first It is handled according to detection data centralized burning；

(3) by the solid portion in step (1) after solid-liquid separation treatment, waste attribute is detected, according to packaging and physical attribute, Selection directly feeds or is crushed；

(4) incineration of waste compatibility program is formulated to incinerating waste material testing result according to testing result in step (3) and residue；

(5) by the compatibility program formulated in step (4), waste is put into and burns pretreatment system, is sufficiently mixed, mixing is useless Object is detected, and detection meets into furnace technical indicator and can be further processed；

(6) by burning disposal, the rotary kiln use the dual firing chamber for having fire grate in waste investment rotary kiln in step (5)；

(7) residue and flying dust generated in step (6) is handled through detection and stable curing processing laggard landfill yard up to standard, is burnt Burn flue gas detected after smoke processing system is handled it is up to standard after discharge, the heat generated in the process through waste heat boiler recycle generate steaming Vapour recycles.

2. a kind of processing method of waste painting slag according to claim 1, it is characterised in that: useless in the step (1) Oil Paint Slag carries out solid-liquid separation treatment by the corrosion resistant apparatus with filter after static layering.

3. a kind of processing method of waste painting slag according to claim 1, it is characterised in that: useless in the step (1) Processing is adjusted according to component of effluent in liquid, reaches and burns into furnace index.

4. a kind of processing method of waste painting slag according to claim 1, it is characterised in that: pre- in the step (1) Processing, carries out at room temperature.

5. a kind of processing method of waste painting slag according to claim 1, it is characterised in that: in the step (3) into Material mode, needs broken segment, into crusher use nitrogen filled protection.

6. a kind of processing method of waste painting slag according to claim 1, it is characterised in that: the cigarette in the step (7) Gas processing system includes flue gas purification system and cigarette coke processing system, and the cigarette coke processing system is for further processing in flue gas Dioxin and organic gas.

7. a kind of processing method of waste painting slag according to claim 1, it is characterised in that: used in the step (7) National standard flue gas automatic checkout system detects flue gas emission situation.

Technical field

The present invention relates to Industrial Solid Waste processing technology field, specially a kind of processing method of waste painting slag is suitable for solid The processing of the waste painting slag of state and liquid state.

Background technique

Oil Paint Slag is the discharge product of the coating objects such as mechanical equipment coating, steel structure ironware anti-corrosion, woodenware, accounts for about painting charge of oil The 45~55% of dosage are painted, hazardous waste is belonged to, there is toxicity and combustibility, dangerous waste code HW12；Its Major Natural exhaust emission Object VOCs, primary discharge ingredient toluene, dimethylbenzene.Oil Paint Slag water content > 80%, viscosity is very big, is Water-In-Oil structure, Wu Fatong It crosses shearing granulating and keeps granular, realize that desiccation because depositing more VOCs during processing, is handled using the method for mechanical dehydration Exhaust gas is difficult to thoroughly dispel undesirable so as to cause whole disposal process effect in the process.

It is relatively broad at this stage to be cleaned to waste painting slag on vacant lot when rubbish by operating personnel there are the phenomenon that, not only can It causes largely to waste, while environment is caused seriously to pollute.There are also be partially by discarded Oil Paint Slag through machinery crushing after again into Row rinses, so that the impurity in it is cleaned removal, such technique is crushed Oil Paint Slag due to being so that Oil Paint Slag and Impurity is lumped together, although be rinsed again be also difficult to remove the impurity in it more thoroughly, therefore can also reduce the benefit of paint With rate, a large amount of organic wastewaters can be generated at the same time and need to handle, increase processing cost.

Pollution of the waste painting slag in air, soil, water and working environment jeopardizes farmland, irrigation and people and animals' drinking water And underground water, pollute irreversible harmfulness it is well known that common waste painting slag processing method is landfill or burns, Both processing methods cause seriously to pollute to air, soil, water and working environment, and drink to farmland, irrigation and people and animals Water and underground water cause irreversible harmfulness.Although having there are large quantities of researchers to put into waste painting slag at present to recycle Field, also achieves good effect, and the circular treatment of waste painting slag may be implemented at present, but leads in its practical operation Often need a large amount of manpower intervention, production district low environmental quality, such production method not only large labor intensity, production efficiency It is low, and since operator needs in production process and excessive fuel consumption slag carries out front face, there is health for operator Risk, the requirement to resource utilization are also extremely limited to, and the amount that can be recycled is less.

Since paint is organic polymer organic matter, and high molecular carbon has higher tack, direct Air-pollution From Combustion atmosphere Environment, Oil Paint Slag are arbitrarily toppled over, first can contaminated land, fire is second easily caused, so dangerous waste treatment industry is universal now Burning disposal is carried out to Oil Paint Slag using rotary kiln, during rotary kiln incineration, Oil Paint Slag easily forms bulk, kiln is blocked, Dioxin can be generated while occupying mass energy.Therefore, because the limitation of processing difficulty, China's Oil Paint Slag burning disposal The construction speed and processing capacity of engineering are much unable to reach the increment requirement of Oil Paint Slag generation；Solve Oil Paint Slag it is innoxious, It is the currently processed task of top priority that the discharge of pollutant is reduced while minimizing.To sum up, need to research and develop a kind of removal of impurities effect at present Fruit is good, saves power and the high method recycled to waste painting slag of the utilization rate of paint, cleans in the prior art to overcome The disadvantage that effect is poor, the utilization rate of waste power and paint is low.

Summary of the invention

The present invention is low for the utilization rate for solving poor impurity-eliminating effect in existing waste painting slag processing, waste power and paint Problem provides a kind of processing method of waste painting slag.

The present invention is achieved by the following technical solution: a kind of processing method of waste painting slag includes the following steps:

(1) waste painting slag is classified, detection, the physics shape of Oil Paint Slag is sampled according to the physical state of Oil Paint Slag respectively State is divided into solid phase and liquid phase, if solid-liquid mix, be separated by solid-liquid separation after abundant static layering, then respectively by standard method into Row sample detection formulates pretreating scheme according to detection data.The standard method of sample detection therein is institute in liquid waste processing Well known common sense, detection data be through the device analysis such as atomic absorption spectrophotometer, atomic fluorescence copper, zinc, lead, chromium, nickel, The content of the indexs such as chromium, Cr VI, mercury, arsenic, fluorine, these have a scheduled index, are made according to the content of these indexs Determining pretreating scheme is well known to technical staff.

(2) for liquid phase waste liquid in step (1), according to the COD of waste, calorific value and waste liquid materializing strategy effect, to can object Change processing waste liquid carry out materializing strategy is collected separately, for can not materializing strategy part, processing is filtered to waste liquid first, Further according to the processing of detection data centralized burning；Specifically mean have not in the COD of waste, calorific value and waste liquid materializing strategy effect etc. In the case where meeting the requirements, a variety of wastes can be mixed, for example, a kind of COD of waste, calorific value were found after detecting Height, and COD, the calorific value of another waste find too low after detecting, and the two can be mixed, after the two balances COD and calorific value Burning disposal is carried out again.

(3) by the solid portion in step (1) after solid-liquid separation treatment, waste attribute is detected, according to packaging and physics Attribute, selection directly feed or are crushed, quick-fried in order to avoid occurring dodging in shattering process, under feeding manner, need broken segment Into in crusher use nitrogen filled protection.

(4) incineration of waste compatibility side is formulated to incinerating waste material testing result according to testing result in step (3) and residue Case；Incineration of waste compatibility program is common a kind of burning scheme in waste treatment plant, is not described in detail here.

(5) by the compatibility program formulated in step (4), waste is put into and burns pretreatment system, is sufficiently mixed, mixed It closes waste to be detected, detection meets into furnace technical indicator and can be further processed；Mixing using agitating mode be in order to Promote to be sufficiently mixed between raw material, do not need to limit mixing speed, determine stirring extent according to testing result, here into furnace skill Art index refers to the parameter after detection, this parameter meets rotary kiln can be burned into furnace standard into furnace.

(6) by burning disposal, the rotary kiln use the dual firing chamber for having fire grate in waste investment rotary kiln in step (5)； The burning process technological parameter especially temperature need to ensure in burning process in strict conformity with relevant national standard specification, dual firing chamber The residue of generation complies with standard.

(7) residue and flying dust generated in step (6) is handled at laggard landfill yard up to standard through detection and stable curing Reason, incineration flue gas detected after smoke processing system is handled it is up to standard after discharge, the heat generated in the process is recycled through waste heat boiler Steam Recovery is generated to utilize.

The processing method of waste painting slag provided by the present invention, including " pretreatment+broken+compatibility+mixing+is burned+is filled out Bury " treatment process, the flue gas generated in burning process after smoke processing system processing is qualified, detect it is up to standard after discharge, burn During burning, incineration residue carries out landfill disposal after detection is qualified.

Preferably, the waste painting slag in the step (1), after static layering, by the corrosion resistant apparatus with filter into Row solid-liquid separation treatment；In order to enable liquid phase waste combustion stability to handle, waste liquid is adjusted processing according to component of effluent, reaches It burns into furnace index；Pretreatment in the step (1), carries out at room temperature.

Preferably, in order to avoid occurring dodging quick-fried feeding manner in the step (3) in shattering process, broken portion is needed Point, into crusher use nitrogen filled protection.

Preferably, the smoke processing system in the step (7) includes flue gas purification system and cigarette coke processing system, described The cigarette coke processing system dioxin and other organic gas in flue gas for further processing.

National standard flue gas automatic checkout system is used in the step (7), detects flue gas emission situation, and detecting flue gas at any time is It is no to meet national emission standard.

Compared with prior art the invention has the following advantages: a kind of processing of waste painting slag provided by the present invention Method can make residue calcination lapse rate lower than 5%, be lower than code requirement standard, avoid subsequent processing；And process costs are low, It is easy to operate, do not generate secondary pollution, good impurity removing effect, the utilization rate height for saving power and paint.

Specific embodiment

Below in conjunction with specific embodiment, the invention will be further described.

A kind of processing method of waste painting slag, includes the following steps:

(1) waste painting slag is classified, detection, the physics shape of Oil Paint Slag is sampled according to the physical state of Oil Paint Slag respectively State is divided into solid phase and liquid phase, if solid-liquid mix, be separated by solid-liquid separation after abundant static layering, then respectively by standard method into Row sample detection formulates pretreating scheme according to detection data.The standard method of sample detection therein is institute in liquid waste processing Well known common sense, detection data be through the device analysis such as atomic absorption spectrophotometer, atomic fluorescence copper, zinc, lead, chromium, nickel, The content of the indexs such as chromium, Cr VI, mercury, arsenic, fluorine, these have a scheduled index, are made according to the content of these indexs Determining pretreating scheme is well known to technical staff, and pretreatment temperature carries out at room temperature；Wherein waste painting slag, through static layering Afterwards, solid-liquid separation treatment is carried out by the corrosion resistant apparatus with filter；In order to enable liquid phase waste combustion stability to handle, waste liquid is pressed Processing is adjusted according to component of effluent, reaches and burns into furnace index；Pretreatment carries out at room temperature；

(2) for liquid phase waste liquid in step (1), according to the COD of waste, calorific value and waste liquid materializing strategy effect, to can be at materialization Carry out materializing strategy is collected separately in the waste liquid of reason, for can not materializing strategy part, processing, then root are filtered to waste liquid first It is handled according to detection data centralized burning；It specifically means, is not met in the COD of waste, calorific value and waste liquid materializing strategy effect etc. In the case where it is required that, a variety of wastes can be mixed, for example, a kind of COD of waste, calorific value found after detecting it is excessively high, And COD, the calorific value of another waste find too low after detecting, and the two can be mixed, the two balance after COD and calorific value again into Row burning disposal.

(3) by the solid portion in step (1) after solid-liquid separation treatment, waste attribute is detected, according to packaging and physics Attribute, selection are directly fed or broken, and quick-fried in order to avoid occurring dodging in shattering process, feeding manner needs broken segment, into breaking Nitrogen filled protection is used in broken machine.

(4) incineration of waste compatibility side is formulated to incinerating waste material testing result according to testing result in step (3) and residue Case；Incineration of waste compatibility program is common a kind of burning scheme in waste treatment plant, is not described in detail here.

(5) by the compatibility program formulated in step (4), waste is put into and burns pretreatment system, is sufficiently mixed, mixed It closes waste to be detected, detection meets into furnace technical indicator and can be further processed；Mixing using agitating mode be in order to Promote to be sufficiently mixed between raw material, do not need to limit mixing speed, determine stirring extent according to testing result, here into furnace skill Art index refers to the parameter after detection, this parameter meets rotary kiln can be burned into furnace standard into furnace.

(6) by burning disposal, the rotary kiln use the dual firing chamber for having fire grate in waste investment rotary kiln in step (5)； The burning process technological parameter especially temperature need to ensure in burning process in strict conformity with relevant national standard specification, dual firing chamber The residue of generation complies with standard.

(7) residue and flying dust generated in step (6) is handled at laggard landfill yard up to standard through detection and stable curing Reason, incineration flue gas detected after smoke processing system is handled it is up to standard after discharge, the heat generated in the process is recycled through waste heat boiler Steam Recovery is generated to utilize.In the present embodiment: smoke processing system includes flue gas purification system and cigarette coke processing system, the cigarette The burnt processing system dioxin and other organic gas in flue gas for further processing；And it is detected automatically using national standard flue gas System detects flue gas emission situation, detects whether flue gas meets national emission standard at any time.

Method provided by the present invention can be used in most of disposal centre, due to the various objects of waste painting slag Reason state and index difference, thus while processing scheme is not accurately calculated, but scheme provided by the present invention is to big absolutely The processing of most waste painting slags provides processing method, and is all applicable in, and subtle change only needs to carry out according to the actual situation Adjustment.

Therefore the scope of protection of present invention is not limited to the above specific embodiment, and for those skilled in the art For, the present invention can there are many deformation and change, all any modifications made within design and principle of the invention, improvement It should be all included within protection scope of the present invention with equivalent replacement.