CN103540172A - Method and system for preparing regenerative carbon black by deashing and modifying pyrolytic carbon of waste rubber and plastic products - Google Patents
Method and system for preparing regenerative carbon black by deashing and modifying pyrolytic carbon of waste rubber and plastic products Download PDFInfo
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- CN103540172A CN103540172A CN201310534302.2A CN201310534302A CN103540172A CN 103540172 A CN103540172 A CN 103540172A CN 201310534302 A CN201310534302 A CN 201310534302A CN 103540172 A CN103540172 A CN 103540172A
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- pyrolytic carbon
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- carbon black
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- 239000006229 carbon black Substances 0.000 title claims abstract description 54
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- 229920003023 plastic Polymers 0.000 title claims abstract description 52
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- 239000002699 waste material Substances 0.000 title claims abstract description 48
- 238000000034 method Methods 0.000 title claims abstract description 26
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- 239000007789 gas Substances 0.000 claims abstract description 28
- 238000000197 pyrolysis Methods 0.000 claims abstract description 23
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- 239000002245 particle Substances 0.000 claims abstract description 11
- 238000005406 washing Methods 0.000 claims abstract description 10
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- 238000012986 modification Methods 0.000 claims description 27
- 230000004048 modification Effects 0.000 claims description 26
- 238000002360 preparation method Methods 0.000 claims description 22
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- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 12
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 claims description 10
- 239000000706 filtrate Substances 0.000 claims description 10
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 9
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- 239000007822 coupling agent Substances 0.000 claims description 7
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 6
- 229910017604 nitric acid Inorganic materials 0.000 claims description 6
- 239000003610 charcoal Substances 0.000 claims description 5
- 229910000029 sodium carbonate Inorganic materials 0.000 claims description 5
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 4
- 229910000147 aluminium phosphate Inorganic materials 0.000 claims description 4
- 238000005453 pelletization Methods 0.000 claims description 4
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 3
- 235000021355 Stearic acid Nutrition 0.000 claims description 3
- 150000004645 aluminates Chemical class 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 claims description 3
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 claims description 3
- RYYKJJJTJZKILX-UHFFFAOYSA-M sodium octadecanoate Chemical compound [Na+].CCCCCCCCCCCCCCCCCC([O-])=O RYYKJJJTJZKILX-UHFFFAOYSA-M 0.000 claims description 3
- 239000008117 stearic acid Substances 0.000 claims description 3
- 239000002737 fuel gas Substances 0.000 claims description 2
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- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
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- 239000005864 Sulphur Substances 0.000 description 1
- -1 Titanic acid ester Chemical class 0.000 description 1
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- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a method and a system for preparing regenerative carbon black by deashing and modifying pyrolytic carbon of waste rubber and plastic products. The method comprises the following steps: preparing the pyrolytic carbon from the waste rubber and plastic products through a pyrolytic process, and crushing the pyrolytic carbon; respectively carrying out two different acid reactions and one alkali reaction on the pyrolytic carbon to convert the vast majority of ash in the pyrolytic carbon into soluble salts; washing the pyrolytic carbon through water, and filtering to remove the soluble salts; reacting the deashed pyrolytic carbon with a modifier to change the micro chemical environment on the surface of the pyrolytic carbon to form a new combined layer and strength the binding force between the pyrolytic carbon particles and the rubber and the plastic so as to prepare the regenerative carbon black, and by means of the treatment, the ash content in the pyrolytic carbon is greatly decreased, and the waste rubber and plastic products are recycled. Meanwhile, the invention also discloses a system for preparing regenerative carbon black by deashing and modifying pyrolytic carbon of waste rubber and plastic products, and heat needed in the reaction process of the system is obtained from combustible gases generated by pyrolysis of the waste rubber and plastic products, so that cyclic utilization of energy source is realized.
Description
Technical field
The present invention relates to a kind of method and system of waste rubber plastics pyrolytic carbon ash disposal modification preparation, regeneration carbon black, particularly a kind of method and system that pyrolytic carbon degree of depth ash disposal at high proportion, surface modification improved to the pyrolytic carbon ash disposal modification preparation, regeneration carbon black of reinforcing effect.
Background technology
Along with the accelerated development of rubber, plastics industry, in world wide, there are a large amount of waste rubber plastics, these rubber plastic products contain high molecular polymer, carbon black and some ash contents conventionally.In ash content, contain the elements such as zinc, calcium, silicon, aluminium, sodium, iron, magnesium, potassium, sulphur, phosphorus.
Along with technical progress, pyrolytic technique can be converted into waste rubber plastics charcoal, oil and inflammable gas, but in pyrolytic carbon, contain a large amount of ash contents, ash content accounts for 15% of pyrolytic carbon mass ratio conventionally---and 20%, this causes the performance of pyrolytic carbon and general industry carbon black, and there is a big difference, and particularly the existence of some ash content causes pyrolytic carbon cannot carry out recycle.
At application number, be that CN03129370.0, name are called in the Chinese patent of " a kind of production method of low ash content regenerative carbon cellulosic material ", disclosed under inert atmosphere the charing of waste polymer material intensification thermo-cracking has been obtained after cracking black carbon, add a kind of inorganic salt and this cracking black carbon baking mixed, make inorganic salt be molten state and with this cracking black carbon in reactive metal oxide, generate the metal-salt of solubility, through subsequent techniques such as washing, dry, crushing and classifications, prepare low ash content regenerative carbon cellulosic material.So these patent employing inorganic salt and carbon black are baking mixed, and its dedusting effect is undesirable, and roasting required equipment is more complicated, expensive, and the required energy of roasting is more.
In addition, at application number, be that CN201310165196.5, name are called in the Chinese patent of " a kind of solid phase graft-modification method of the cracking black carbon of regenerating ", disclosed in the pyrolytic carbon producing at waste old, plastics Pintsch process and added organic compound, by milling equipment, organifying compound situ-formed graft, to the surface of pyrolytic carbon, obtains the regeneration cracking black carbon of solid phase graft-modification.This patent is fully contacted organic compound and pyrolytic carbon surface, reacts by milling equipment, but that its weak point is this reaction effect is not good, and does not solve the problem that pyrolytic carbon ash content is high.
Summary of the invention
The method and the device that the object of this invention is to provide a kind of waste rubber plastics pyrolytic carbon ash disposal modification preparation, regeneration carbon black that can suitability for industrialized production, use pyrolysis gas is the energy, with better simply chemical reaction, remove the ash content in pyrolytic carbon, change the micro-chemical environment in pyrolytic carbon surface, thereby pyrolytic carbon is converted into the regeneration carbon black of similar general industry carbon black performance.
For achieving the above object, the present invention proposes following technical scheme: a kind of method of waste rubber plastics pyrolytic carbon ash disposal modification preparation, regeneration carbon black, comprises the following steps:
Step 1, waste rubber plastics make pyrolytic carbon by pyrolytic reaction;
Step 2, by described pyrolytic carbon and the first acid-respons, and washing and filtering;
More preferably, between described step 2 and step 3, also comprise the reactions steps of pyrolytic carbon and alkali.
Described alkali is selected from one or more the combination in sodium carbonate, sodium hydroxide, potassium hydroxide;
The reaction conditions of described pyrolytic carbon and alkali is temperature 70 C～100 ℃, normal pressure or 120 ℃～151 ℃ of temperature, pressure 0.2MPa～0.5MPa.
In described the first acid and second, acid is selected from one or more the combination in hydrochloric acid, nitric acid, sulfuric acid, hydrofluoric acid, phosphoric acid, and the first is sour different from the composition of the second acid;
Reaction conditions in described step 2, step 3 is temperature 70 C～100 ℃, normal pressure or 120 ℃～151 ℃ of temperature, pressure 0.2MPa～0.5MPa.
Described properties-correcting agent is selected from one or more the combination in silane coupling agent, titanate coupling agent, aluminate coupling agent, stearic acid, sodium stearate.
The present invention also proposes a kind of technical scheme of system of waste rubber plastics pyrolytic carbon ash disposal modification preparation, regeneration carbon black, comprises acid-respons container, modified-reaction container, sprinkling equipment, filter plant, precipitation and water treatment system; Wherein said acid-respons container is connected with modified-reaction container, is respectively used to pyrolytic carbon to react with acid and properties-correcting agent; Described sprinkling equipment is connected with acid-respons container, for the gas that acid-respons is produced, neutralizes, absorbs; Described filter plant is arranged on acid-respons container and modified-reaction container Hou road, for the discharging after acid-respons, modified-reaction are completed, carries out solid-liquid separation; Described precipitation and water treatment system are connected with described filter plant, for precipitating filtering the solids of rear gained filtrate.
More preferably, described system also comprises the alkali reaction container being connected with described acid-respons container and modified-reaction container, and described alkali reaction container is for reacting described pyrolytic carbon with alkali.
Described system also comprises the granulating equipment being connected with filter plant, and described granulating equipment is for pelletizing of carbon black that powdery is regenerated.
Described system also comprise shredder assembly, pyrolysis installation, shredding unit and gas fired-boiler; Described shredder assembly is broken into particle by waste rubber plastics; Described pyrolysis installation becomes pyrolytic carbon, oil and combustible gas by the pyrolysis of waste rubber plastics; Described shredding unit is connected with the charcoal outlet of pyrolysis installation, for pyrolytic carbon is pulverized; Described gas fired-boiler is connected with the gas outlet of pyrolysis installation, for by pyrolysis fuel gas buring water vapour processed.
It is raw material that waste rubber plastics pyrolytic carbon is take in the present invention, by twice different acid-respons and an alkali reaction, the ash content in pyrolytic carbon is converted into soluble salt, then by washing, filter salt separatedly from pyrolytic carbon, realize ash disposal; By modified-reaction, change the micro-chemical environment in pyrolytic carbon surface, form new key coat, the bonding force between enhances pyrolysis carbon granule and rubber, plastics, improves reinforcing effect, thereby makes regeneration carbon black, substantially reaches the performance index of general industry carbon black.
The reaction process of described pyrolytic carbon and the first acid comprises: the first acid is added in pyrolytic carbon, be uniformly mixed, when stirring, pyrolytic carbon is heated, described pyrolytic carbon is under 70 ℃～100 ℃, condition of normal pressure or is 120 ℃～151 ℃ in temperature in temperature, pressure is fully to react with the first acid under 0.2MPa～0.5MPa condition, and part of ash changes into soluble salt; After having reacted, wash pyrolytic carbon, discharging with water and filter, removing soluble salt; Remaining pyrolytic carbon is proceeded ensuing reaction.
The reaction process of described pyrolytic carbon and alkali comprises: alkali is added in pyrolytic carbon, be uniformly mixed, when stirring, pyrolytic carbon is heated, described pyrolytic carbon is under 70 ℃～100 ℃, condition of normal pressure or is 120 ℃～151 ℃ in temperature in temperature, pressure is fully to react with alkali under 0.2MPa～0.5MPa condition, and part of ash changes into soluble salt; After having reacted, wash pyrolytic carbon, discharging with water and filter, removing soluble salt; Remaining pyrolytic carbon is proceeded ensuing reaction.
The reaction process of described pyrolytic carbon and the second acid comprises: the second acid is added in pyrolytic carbon, be uniformly mixed, when stirring, pyrolytic carbon is heated, described pyrolytic carbon is under 70 ℃～100 ℃, condition of normal pressure or is 120 ℃～151 ℃ in temperature in temperature, pressure is fully to react with the second acid under 0.2MPa～0.5MPa condition, and part of ash changes into soluble salt; After having reacted, wash pyrolytic carbon, discharging with water and filter, removing soluble salt; Remaining pyrolytic carbon is proceeded ensuing reaction.
The reaction process of described pyrolytic carbon and properties-correcting agent comprises: properties-correcting agent is added in pyrolytic carbon, be uniformly mixed, in the time of stirring, pyrolytic carbon is heated, described pyrolytic carbon reacts under temperature is 70 ℃～100 ℃, condition of normal pressure, filtration after completing.Obtained regeneration carbon black can be further processed.
Compared with prior art, the present invention can be reduced to 1%-2% up to the ash oontent of 20% original pyrolytic carbon by ash oontent, the reinforcement ability of the regeneration carbon black making can compare favourably with industrial carbon blacks such as N330, N660, realizes the recycle of waste rubber plastics.More meaningfully, in above-mentioned reaction, drying process, institute's heat requirement comes from the combustible gas that the pyrolysis of waste rubber plastics produces, and has both avoided the outer pollution discharging environment of pyrolysis gas, fully realizes again recycle.
Accompanying drawing explanation
Fig. 1 is the schema of the method for waste rubber plastics pyrolytic carbon ash disposal modification preparation, regeneration carbon black of the present invention;
Fig. 2 is the schema of Fig. 1 refinement;
Fig. 3 is the structural representation of the system of waste rubber plastics pyrolytic carbon ash disposal modification preparation, regeneration carbon black of the present invention.
In figure, element numbers is:
Waste rubber plastic breaker 1, transfer roller 21～28, pyrolysis installation 3; pyrolytic carbon shredding unit 4, gas fired-boiler 5, sour A reaction vessel 6; filter plant 71～74, alkali B reaction vessel 8, alkali spray column 9; acid C reaction vessel 10; modified-reaction container 11, tablets press 12, drying plant 13; packaging facilities 14, precipitation and water treatment system 15
Embodiment
Below in conjunction with accompanying drawing of the present invention, the technical scheme of the embodiment of the present invention is carried out to clear, complete description.
Described in Fig. 1, Fig. 2, the method for waste rubber plastics pyrolytic carbon ash disposal modification preparation, regeneration carbon black of the present invention comprises the following steps:
S1, waste rubber plastics adopt pyrolytic process to make pyrolytic carbon, oil, combustible gas.
S2, pyrolytic carbon is crushed to the following fineness of 325 order (particle diameter < 45 μ m).
S3, pyrolytic carbon reacts with sour A, and part of ash is changed into soluble salt, then removes through washing and filtering.
Specifically, the reaction process of pyrolytic carbon and sour A comprises: sour A is added in pyrolytic carbon, be uniformly mixed, when stirring, pyrolytic carbon is heated, described pyrolytic carbon is under 70 ℃～100 ℃, condition of normal pressure or is 120 ℃～151 ℃ in temperature in temperature, pressure is fully to react with sour A under the condition of 0.2MPa～0.5MPa, and reaction rear section ash content changes into soluble salt; After having reacted, wash pyrolytic carbon, discharging with water and filter, removing soluble salt; Remaining pyrolytic carbon is proceeded subsequent reactions.Wherein sour A is selected from one or more the combination in hydrochloric acid, nitric acid, sulfuric acid, hydrofluoric acid, phosphoric acid.
S4, pyrolytic carbon reacts with alkali B, and part of ash is changed into soluble salt, then removes through washing and filtering.
Specifically, pyrolytic carbon comprises with the process that alkali B reacts: alkali B is added in pyrolytic carbon, be uniformly mixed, when stirring, pyrolytic carbon is heated, described pyrolytic carbon is under 70 ℃～100 ℃, condition of normal pressure or is 120 ℃～151 ℃ in temperature in temperature, pressure is fully to react with alkali under 0.2MPa～0.5MPa condition, and part of ash changes into soluble salt; After having reacted, wash pyrolytic carbon, discharging with water and filter, removing soluble salt; Remaining pyrolytic carbon is proceeded subsequent reactions.Alkali B is one or more the combination in sodium carbonate, sodium hydroxide, potassium hydroxide.
Whether the step that pyrolytic carbon reacts with alkali B is optional step, according to the ash content kind of waste rubber plastics is different, select to adopt.
S4, pyrolytic carbon reacts with sour C, and part of ash is changed into soluble salt, then removes through washing and filtering.
Specifically, pyrolytic carbon comprises with the process that sour C reacts: sour C is added in pyrolytic carbon, be uniformly mixed, when stirring, pyrolytic carbon is heated, described pyrolytic carbon is under 70 ℃～100 ℃, condition of normal pressure or is 120 ℃～151 ℃ in temperature in temperature, pressure is fully to react with sour C under 0.2MPa～0.5MPa condition, and part of ash changes into soluble salt; After having reacted, wash pyrolytic carbon, discharging with water and filter, removing soluble salt; Remaining pyrolytic carbon is proceeded subsequent reactions.Acid C is one or more the combination in hydrochloric acid, nitric acid, sulfuric acid, hydrofluoric acid, phosphoric acid, and different from sour A composition.
For different waste rubber plastics pyrolytic carbons, interchangeable scheme is that the sequencing of S3, S4, S5 can change.
S6, pyrolytic carbon reacts with properties-correcting agent D, changes the micro-chemical environment in pyrolytic carbon surface, forms new key coat, and the bonding force between enhances pyrolysis carbon granule and rubber, plastics, improves reinforcing effect, thereby makes regeneration carbon black.
Specifically, pyrolytic carbon comprises with the process that properties-correcting agent D reacts: properties-correcting agent D is added in pyrolytic carbon, be uniformly mixed, in the time of stirring, pyrolytic carbon is heated, described pyrolytic carbon reacts under temperature is 70 ℃～100 ℃, condition of normal pressure, filtration after completing.Obtained regeneration carbon black is proceeded described step 7.Properties-correcting agent D is one or more the combination in silane coupling agent, titanate coupling agent, aluminate coupling agent, stearic acid, sodium stearate.
S7, after ash disposal modification, gained regeneration carbon black is through granulation, dry, packing, available.
As shown in Figure 3, the system of disclosed a kind of waste rubber plastics pyrolytic carbon ash disposal modification preparation, regeneration carbon black, comprises waste rubber plastic breaker 1; transfer roller 21～27, pyrolysis installation 3, pyrolytic carbon shredding unit 4; gas fired-boiler 5, sour A reaction vessel 6, filter plant 71～74; alkali B reaction vessel 8, alkali spray column 9, sour C reaction vessel 10; modified-reaction container 11, tablets press 12, drying plant 13; packaging facilities 14, precipitation and water treatment system 15.Described crusher 1 to particle diameter 2-5cm particle, enters described pyrolysis installation 3 by described transfer roller 21, as the raw material of pyrolytic reaction by waste rubber plastic crushing.
Waste rubber plastics are changed into pyrolytic carbon, oil and combustible gas by pyrolysis installation 3.Combustible gas inputs to described gas fired-boiler 5 burnings and produces steam for reaction vessel, drying plant.Pyrolytic carbon is crushed to the following fineness of 325 order (particle diameter < 45 μ m) by described shredding unit 4, through described transfer roller 22, delivers to sour A reaction vessel 6.Pyrolytic carbon reacts with sour A in reaction vessel 6, and the part of ash in pyrolytic carbon is changed into soluble salt.The collection and confinement of gases producing in reaction process arrives described alkali spray column 9, after treatment outer row.After having reacted, reaction vessel 6 dischargings are filtered by described filter plant 71, then filter residue is washed with water, filtered.Filtrate collection arrives precipitation and water treatment system 15, outer row after treated environment protection standard.
The filter residue that filter plant 71 produces is delivered to alkali B reaction vessel 8 through described transfer roller 23.Pyrolytic carbon reacts with alkali B in reaction vessel 8, and the part of ash in pyrolytic carbon is changed into soluble salt.After having reacted, reaction vessel 8 dischargings are filtered by described filter plant 72, then filter residue is washed with water, filtered.Filtrate collection arrives precipitation and water treatment system 15, outer row after treated environment protection standard.
The filter residue that filter plant 72 produces is delivered to sour C reaction vessel 10 through described transfer roller 24.Pyrolytic carbon reacts with sour C in reaction vessel 10, and the part of ash in pyrolytic carbon is changed into soluble salt.The collection and confinement of gases producing in reaction process arrives described alkali spray column 9, after treatment outer row.After having reacted, reaction vessel 10 dischargings are filtered by described filter plant 73, then filter residue is washed with water, filtered.Filtrate collection arrives precipitation and water treatment system 15, outer row after treated environment protection standard.
In the present embodiment, with sour A reaction vessel 6, in front, placed in the middle, sour C reaction vessel 10 postpones of alkali B reaction vessel 8, introduce the process of the acid of waste rubber plastics pyrolytic carbon, alkali ash disposal reaction, in other embodiments, the front and back position that described sour A reaction vessel 6, alkali B reaction vessel 8, sour C reaction vessel 10 connect can specifically carry out front and back according to the difference of the contained ash content kind of waste rubber plastics pyrolytic carbon to be changed, and some embodiment also can omit alkali B reaction vessel 8.
The filter residue that filter plant 73 produces is delivered to modified-reaction container 11 through described transfer roller 25.Pyrolytic carbon reacts with properties-correcting agent D in reaction vessel 11, makes regeneration carbon black.Reaction vessel 11 dischargings are filtered by described filter plant 74.Filtrate collection arrives precipitation and water treatment system 15, outer row after treated environment protection standard.
Obtained regeneration carbon black is delivered to tablets press 12 through described transfer roller 26, the pelletizing of carbon black of regenerating.Carbon black particle is delivered to drying plant 13 through described transfer roller 27, is dried.Dried carbon black particle is delivered to packaging facilities 14 through described transfer roller 28 and is packed.
The waste tyre pyrolytic charcoal ash disposal modification preparation, regeneration carbon black of take is below example, and the process of the present invention to waste rubber plastics pyrolytic carbon ash disposal modification preparation, regeneration carbon black is described.Damaged tire is delivered to crusher 1 by e Foerderanlage (not shown), is broken into the micelle of 2-5cm.Micelle enters pyrolysis installation 3 by transfer roller 21, through pyrolytic reaction, changes into pyrolytic carbon, oil and combustible gas.Combustible gas inputs to described gas fired-boiler 5 burnings and produces steam for reaction vessel, drying plant.Pyrolytic carbon is crushed to 325 orders by shredding unit 4, through transfer roller 22, delivers to sour A reaction vessel 6.Pyrolytic carbon reacts with hydrochloric acid (sour A) in reaction vessel 6, and the part of ash in pyrolytic carbon is changed into soluble salt.The collection and confinement of gases producing in reaction process, to alkali spray column 9, is arranged outward after treatment.After having reacted, reaction vessel 6 dischargings are filtered by filter plant 71, then filter residue is washed with water, filtered.Filtrate collection arrives precipitation and water treatment system 15, outer row after treated environment protection standard.
The filter residue that filter plant 71 produces is delivered to alkali B reaction vessel 8 through transfer roller 23.Pyrolytic carbon reacts with soda ash (alkali B) in reaction vessel 8, and the part of ash in pyrolytic carbon is changed into soluble salt.After having reacted, reaction vessel 8 dischargings are filtered by filter plant 72, then filter residue is washed with water, filtered.Filtrate collection arrives precipitation and water treatment system 15, outer row after treated environment protection standard.
The filter residue that filter plant 72 produces is delivered to sour C reaction vessel 10 through described transfer roller 24.Pyrolytic carbon reacts with nitric acid (sour C) in reaction vessel 10, and the part of ash in pyrolytic carbon is changed into soluble salt.The collection and confinement of gases producing in reaction process, to alkali spray column 9, is arranged outward after treatment.After having reacted, reaction vessel 10 dischargings are filtered by filter plant 73, then filter residue is washed with water, filtered.Filtrate collection arrives precipitation and water treatment system 15, outer row after treated environment protection standard.
Above-mentioned hydrochloric acid, nitric acid, soda ash add-on record various component proportionss in ash oontent and ash content according to pyrolytic carbon and determine.
The filter residue that filter plant 73 produces is delivered to modified-reaction container 11 through transfer roller 25.Pyrolytic carbon reacts with titanate coupling agent CT-136 in reaction vessel 11, makes regeneration carbon black.Titanic acid ester add-on is the 1%-2% of pyrolytic carbon quality.Reaction vessel 11 dischargings are filtered by described filter plant 74.Filtrate collection arrives precipitation and water treatment system 15, outer row after treated environment protection standard.
Obtained regeneration carbon black is delivered to tablets press 12 through transfer roller 26, the pelletizing of carbon black of regenerating.Carbon black particle is delivered to drying plant 13 through transfer roller 27, is dried.Dried carbon black particle is delivered to packaging facilities 14 through transfer roller 28 and is packed.
After above-mentioned processing, the ash oontent of waste tyre pyrolytic charcoal is reduced to 1.5%, DBP adsorptive value 85, tensile strength 17MPa, tensile yield 440%, 300% stress at definite elongation 8.1MPa from 18%.Performance index and general industry carbon black N330, N660 approach.
Technology contents of the present invention and technical characterictic have disclosed as above; yet those of ordinary skill in the art still may be based on teaching of the present invention and announcements and are done all replacement and modifications that does not deviate from spirit of the present invention; therefore; protection domain of the present invention should be not limited to the content that embodiment discloses; and should comprise various do not deviate from replacement of the present invention and modifications, and contained by present patent application claim.
Claims (10)
1. a method for waste rubber plastics pyrolytic carbon ash disposal modification preparation, regeneration carbon black, is characterized in that comprising the following steps:
Step 1, waste rubber plastics make pyrolytic carbon by pyrolytic reaction;
Step 2, by described pyrolytic carbon and the first acid-respons, and washing and filtering;
Step 3, by the pyrolytic carbon after step 2 is processed and the second acid-respons, and washing and filtering; And
Step 4, the pyrolytic carbon after step 3 is processed is reacted with properties-correcting agent and filter after obtain described regeneration carbon black.
2. the method for waste rubber plastics pyrolytic carbon ash disposal modification preparation, regeneration carbon black according to claim 1, is characterized in that: between described step 2 and step 3, also comprise the reactions steps of pyrolytic carbon and alkali.
3. the method for waste rubber plastics pyrolytic carbon ash disposal modification preparation, regeneration carbon black according to claim 2, is characterized in that: described alkali is selected from one or more the combination in sodium carbonate, sodium hydroxide, potassium hydroxide; The reaction conditions of described pyrolytic carbon and alkali is temperature 70 C～100 ℃, normal pressure or 120 ℃～151 ℃ of temperature, pressure 0.2MPa～0.5MPa.
4. the method for waste rubber plastics pyrolytic carbon ash disposal modification preparation, regeneration carbon black according to claim 1, it is characterized in that: in described the first acid and second, acid is selected from one or more the combination in hydrochloric acid, nitric acid, sulfuric acid, hydrofluoric acid, phosphoric acid, and the first is sour different from the composition of the second acid.
5. the method for waste rubber plastics pyrolytic carbon ash disposal modification preparation, regeneration carbon black according to claim 1, is characterized in that: the reaction conditions in described step 2, step 3 is temperature 70 C～100 ℃, normal pressure or 120 ℃～151 ℃ of temperature, pressure 0.2MPa～0.5MPa.
6. the method for waste rubber plastics pyrolytic carbon ash disposal modification preparation, regeneration carbon black according to claim 1, is characterized in that: described properties-correcting agent is selected from one or more the combination in silane coupling agent, titanate coupling agent, aluminate coupling agent, stearic acid, sodium stearate.
7. a system for waste rubber plastics pyrolytic carbon ash disposal modification preparation, regeneration carbon black, is characterized in that, comprises acid-respons container, modified-reaction container, sprinkling equipment, filter plant, precipitation and water treatment system; Wherein said acid-respons container is connected with modified-reaction container, is respectively used to pyrolytic carbon to react with acid and properties-correcting agent; Described sprinkling equipment is connected with acid-respons container, for the gas that acid-respons is produced, neutralizes, absorbs; Described filter plant is arranged on acid-respons container and modified-reaction container Hou road, for the discharging after acid-respons, modified-reaction are completed, carries out solid-liquid separation; Described precipitation and water treatment system are connected with described filter plant, for precipitating filtering the solids of rear gained filtrate.
8. the system of waste rubber plastics pyrolytic carbon ash disposal modification preparation, regeneration carbon black according to claim 7, it is characterized in that, also comprise the alkali reaction container being connected with described acid-respons container and modified-reaction container, described alkali reaction container is for reacting described pyrolytic carbon with alkali.
9. the system of waste rubber plastics pyrolytic carbon ash disposal modification preparation, regeneration carbon black according to claim 7, is characterized in that, also comprises the granulating equipment being connected with filter plant, and described granulating equipment is for pelletizing of carbon black that powdery is regenerated.
10. the system of waste rubber plastics pyrolytic carbon ash disposal modification preparation, regeneration carbon black according to claim 7, is characterized in that, also comprises shredder assembly, pyrolysis installation, shredding unit and gas fired-boiler; Described shredder assembly is broken into particle by waste rubber plastics; Described pyrolysis installation becomes pyrolytic carbon, oil and combustible gas by the pyrolysis of waste rubber plastics; Described shredding unit is connected with the charcoal outlet of pyrolysis installation, for pyrolytic carbon is pulverized; Described gas fired-boiler is connected with the gas outlet of pyrolysis installation, for by pyrolysis fuel gas buring water vapour processed.
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