CN109054464A - A kind of tire pyrolysis carbon black physics de-ash process - Google Patents
A kind of tire pyrolysis carbon black physics de-ash process Download PDFInfo
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- CN109054464A CN109054464A CN201810947728.3A CN201810947728A CN109054464A CN 109054464 A CN109054464 A CN 109054464A CN 201810947728 A CN201810947728 A CN 201810947728A CN 109054464 A CN109054464 A CN 109054464A
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/44—Carbon
- C09C1/48—Carbon black
- C09C1/56—Treatment of carbon black ; Purification
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/44—Carbon
- C09C1/48—Carbon black
- C09C1/482—Preparation from used rubber products, e.g. tyres
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/006—Combinations of treatments provided for in groups C09C3/04 - C09C3/12
Abstract
The invention discloses a kind of tire pyrolysis carbon black physics de-ash process, comprising the following steps: and one, mix tire pyrolysis carbon black with water, carbon black ore pulp is made；Two, carbon black ore pulp is fed in ultrasonic dispersing machine and is dispersed, obtain disperse black carbon ore pulp；Three, disperse black carbon ore pulp is fed in Falcon centrifugal classifier and is sorted, obtain sorting concentrate and sort tailing；Four, sorting concentrate is fed in BGT series surface modification pulp mixing machine, and kerosene is added and sec-octyl alcohol carries out processing of sizing mixing, obtain carbon black ore pulp of sizing mixing；Five, the carbon black ore pulp that will size mixing, which is fed in flotation column, to be sorted, and obtains column concentrate selection and column selects tailing；Six, column concentrate selection is fed in filter press and is carried out dehydrating, obtain physics deliming concentrate；Seven, tailings glass.The physical method for separation of particulate carbon black and ash impurities may be implemented in the present invention, and processing cost is low, simple, convenient, environmentally protective, is to realize that tire pyrolysis carbon black deliming recycles.
Description
Technical field
The invention belongs to de-ash process technical fields, are specifically related to a kind of tire pyrolysis carbon black physics de-ash process.
Background technique
Tire can cooperate various auxiliary agents in sizing material in the fabrication process, these auxiliary agents finally collect with the cracking of tire
Into cracking black carbon, cracking black carbon is due to cracking technology and tire source difference, and content of ashes is generally between 10%~20%, much
Higher than the content of ashes in commercial carbon blacks.The specific gravity that ash content accounts in cracking black carbon is larger and does not have any reinforcing effect, ash
Divide the active site that can not only cover cracking black carbon surface, the real surface of cracking black carbon is hindered directly to connect with rubber molecular chain
Touching, but also the amounts of carbon black being actually filled in rubber can be made to reduce.Therefore, study cracking black carbon in ash content removal methods with
Technique seems especially urgent necessity.
Tire pyrolysis carbon black and ash impurities granularity are fine, are not easy the separation of Typical physical method.Existing main ash content removing
Method is pickling or Acid-Base washes method processing, but there are operating cost height, equipment seriously corroded, maintenance difficult for such processing method
Etc. drawbacks, especially liquid waste processing be difficult, environmental pollution is serious, do not meet the requirement of Modern Green environmental protection.
Summary of the invention
It is an object of the invention to overcome the deficiencies in the prior art described above, a kind of tire pyrolysis carbon black physics deliming is provided
Technique solves the fine Typical physical method that is not easy of existing tire pyrolysis carbon black and ash impurities granularity and separates and existing pickling
Or Acid-Base washes method processing method there are problems that environmental pollution is serious, and this method is simple, low in cost, easily operated, effect
Well, there is certain industrial popularization and application value.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of tire pyrolysis carbon black physics de-ash process,
Be characterized in that, the technique the following steps are included:
Step 1: tire pyrolysis carbon black is mixed with water, the carbon black ore pulp that concentration is 60g/L~120g/L is made；
Ultrasonic disperse is carried out in ultrasonic dispersing machine Step 2: carbon black ore pulp manufactured in step 1 is fed, and is obtained
Disperse black carbon ore pulp；The dispersion power of the ultrasonic dispersing machine is 3000W~4200W, the dispersion of the ultrasonic dispersing machine
Time is 15min~30min；
It is sorted Step 3: disperse black carbon ore pulp obtained in step 2 is fed in Falcon centrifugal classifier,
Obtain Falcon centrifugal classifier sorting concentrate and Falcon centrifugal classifier sorting tailing；The Falcon centrifugal classifier
Back-flushing hydraulic pressure is 0.2MPa~0.25MPa；
Step 4: the sorting concentrate of Falcon centrifugal classifier obtained in step 3 is fed BGT series surfaction
In paste mixer, and into BGT series surface modification pulp mixing machine, addition kerosene and sec-octyl alcohol carry out processing of sizing mixing, and obtain carbon black of sizing mixing
Ore pulp；The impeller linear velocity of the BGT series surface modification pulp mixing machine is 2.0m/s~2.5m/s；
It is sorted Step 5: carbon black ore pulp obtained in step 4 of sizing mixing is fed in flotation column, obtains column choosing essence
Mine and column select tailing；
It is carried out dehydrating Step 6: column concentrate selection obtained in step 5 is fed in filter press, obtains finished product i.e.
Physics deliming concentrate；
Step 7: Falcon centrifugal classifier obtained in step 3, which is sorted column obtained in tailing and step 5, selects tail
Mine is fed in tailing tank.
Above-mentioned a kind of tire pyrolysis carbon black physics de-ash process, it is characterised in that: the hardness of water described in step 1 is
0 ° of DH~100 ° DH.
Above-mentioned a kind of tire pyrolysis carbon black physics de-ash process, it is characterised in that: the hardness of water described in step 1 is
50°DH。
A kind of above-mentioned tire pyrolysis carbon black physics de-ash process, it is characterised in that: the dosage of kerosene described in step 4
For the dry tire pyrolysis carbon black of 3~10kg/t, the dosage of the sec-octyl alcohol is the dry tire pyrolysis carbon black of 500~1500g/t.
A kind of above-mentioned tire pyrolysis carbon black physics de-ash process, it is characterised in that: the dosage of kerosene described in step 4
For the dry tire pyrolysis carbon black of 5~8kg/t, the dosage of the sec-octyl alcohol is the dry tire pyrolysis carbon black of 900~1100g/t.
A kind of above-mentioned tire pyrolysis carbon black physics de-ash process, it is characterised in that: the dosage of kerosene described in step 4
For the dry tire pyrolysis carbon black of 6.5kg/t, the dosage of the sec-octyl alcohol is the dry tire pyrolysis carbon black of 1000g/t.
Above-mentioned a kind of tire pyrolysis carbon black physics de-ash process, it is characterised in that: carbon black ore pulp described in step 1
Concentration is 90g/L.
A kind of above-mentioned tire pyrolysis carbon black physics de-ash process, it is characterised in that: the dispersion of ultrasonic wave described in step 2
The dispersion power of machine is 3600W, and the jitter time of the ultrasonic dispersing machine is 23min.
A kind of above-mentioned tire pyrolysis carbon black physics de-ash process, it is characterised in that: the centrifugation of Falcon described in step 3
The back-flushing hydraulic pressure of sorting machine is 0.23MPa.
A kind of above-mentioned tire pyrolysis carbon black physics de-ash process, it is characterised in that: the surface BGT series described in step 4
The impeller linear velocity for modifying paste mixer is 2.2m/s.
Compared with the prior art, the present invention has the following advantages:
1, present invention process mainly utilizes a variety of efficient physical dispersions and screening installation, reaches particulate tire pyrolysis carbon black
Disperse it is high to solve tire pyrolysis ash of carbon black, and at present existing for chemical treatment method with the purpose sorted with ash impurities
The problems such as operating cost is high, environmental pollution is serious.
2, the present invention mixes with water tire pyrolysis carbon black be made into ore pulp after feed it is fully dispersed in ultrasonic dispersing machine
Then carbon black and ash impurities feed Falcon centrifugal classifier and carry out efficient film concentration for the first time, Falcon centrifugal classification
Machine sorting concentrate is fed after BGT series surface modification pulp mixing machine is sized mixing carries out second of multiple mineralising microvesicle point in flotation column
Choosing, flotation column concentrate obtain tire pyrolysis carbon black physics deliming concentrate, Falcon centrifugal classifier after filter press is dehydrated
Sorting tailing feeds tailing tank after merging with flotation column tailing.The tire pyrolysis carbon black physics de-ash process, Ke Yishi
The physical method for separation of existing particulate carbon black and ash impurities, processing cost is low, simple, convenient, environmentally protective, is to realize wheel
Tire cracking black carbon deliming recycles, the effective ways of sustainable development, has certain industrial popularization and application value.
Below by drawings and examples, the present invention is described in further detail.
Detailed description of the invention
Fig. 1 is the flow chart of tire pyrolysis carbon black physics de-ash process of the present invention.
Specific embodiment
Embodiment 1
In conjunction with Fig. 1, a kind of tire pyrolysis carbon black physics de-ash process of the present embodiment the following steps are included:
Step 1: tire pyrolysis carbon black is mixed with water, the carbon black ore pulp that concentration is 90g/L is made；
Ultrasonic disperse is carried out in ultrasonic dispersing machine Step 2: carbon black ore pulp manufactured in step 1 is fed, and is obtained
Disperse black carbon ore pulp；The dispersion power of the ultrasonic dispersing machine is 3600W, and the jitter time of the ultrasonic dispersing machine is
23min；
It is sorted Step 3: disperse black carbon ore pulp obtained in step 2 is fed in Falcon centrifugal classifier,
Obtain Falcon centrifugal classifier sorting concentrate and Falcon centrifugal classifier sorting tailing；The Falcon centrifugal classifier
Back-flushing hydraulic pressure is 0.23MPa；
Step 4: the sorting concentrate of Falcon centrifugal classifier obtained in step 3 is fed BGT series surfaction
In paste mixer, and into BGT series surface modification pulp mixing machine, addition kerosene and sec-octyl alcohol carry out processing of sizing mixing, and obtain carbon black of sizing mixing
Ore pulp；The impeller linear velocity of the BGT series surface modification pulp mixing machine is 2.2m/s；
It is sorted Step 5: carbon black ore pulp obtained in step 4 of sizing mixing is fed in flotation column, obtains column choosing essence
Mine and column select tailing；
It is carried out dehydrating Step 6: column concentrate selection obtained in step 5 is fed in filter press, obtains finished product i.e.
Physics deliming concentrate；
Step 7: Falcon centrifugal classifier obtained in step 3, which is sorted column obtained in tailing and step 5, selects tail
Mine is fed in tailing tank.
In the present embodiment, the hardness of water described in step 1 is 50 ° of DH.
In the present embodiment, the dosage of kerosene described in step 4 is the dry tire pyrolysis carbon black of 6.5kg/t, the sec-octyl alcohol
Dosage is the dry tire pyrolysis carbon black of 1000g/t.
Embodiment 2
In conjunction with Fig. 1, a kind of tire pyrolysis carbon black physics de-ash process of the present embodiment the following steps are included:
Step 1: tire pyrolysis carbon black is mixed with water, the carbon black ore pulp that concentration is 70g/L is made；
Ultrasonic disperse is carried out in ultrasonic dispersing machine Step 2: carbon black ore pulp manufactured in step 1 is fed, and is obtained
Disperse black carbon ore pulp；The dispersion power of the ultrasonic dispersing machine is 3400W, and the jitter time of the ultrasonic dispersing machine is
26min；
It is sorted Step 3: disperse black carbon ore pulp obtained in step 2 is fed in Falcon centrifugal classifier,
Obtain Falcon centrifugal classifier sorting concentrate and Falcon centrifugal classifier sorting tailing；The Falcon centrifugal classifier
Back-flushing hydraulic pressure is 0.24MPa；
Step 4: the sorting concentrate of Falcon centrifugal classifier obtained in step 3 is fed BGT series surfaction
In paste mixer, and into BGT series surface modification pulp mixing machine, addition kerosene and sec-octyl alcohol carry out processing of sizing mixing, and obtain carbon black of sizing mixing
Ore pulp；The impeller linear velocity of the BGT series surface modification pulp mixing machine is 2.4m/s；
It is sorted Step 5: carbon black ore pulp obtained in step 4 of sizing mixing is fed in flotation column, obtains column choosing essence
Mine and column select tailing；
It is carried out dehydrating Step 6: column concentrate selection obtained in step 5 is fed in filter press, obtains finished product i.e.
Physics deliming concentrate；
Step 7: Falcon centrifugal classifier obtained in step 3, which is sorted column obtained in tailing and step 5, selects tail
Mine is fed in tailing tank.
In the present embodiment, the hardness of water described in step 1 is 80 ° of DH.
In the present embodiment, the dosage of kerosene described in step 4 is the dry tire pyrolysis carbon black of 5kg/t, the use of the sec-octyl alcohol
Amount is the dry tire pyrolysis carbon black of 700g/t.
Embodiment 3
In conjunction with Fig. 1, a kind of tire pyrolysis carbon black physics de-ash process of the present embodiment the following steps are included:
Step 1: tire pyrolysis carbon black is mixed with water, the carbon black ore pulp that concentration is 60g/L is made；
Ultrasonic disperse is carried out in ultrasonic dispersing machine Step 2: carbon black ore pulp manufactured in step 1 is fed, and is obtained
Disperse black carbon ore pulp；The dispersion power of the ultrasonic dispersing machine is 4200W, and the jitter time of the ultrasonic dispersing machine is
15min；
It is sorted Step 3: disperse black carbon ore pulp obtained in step 2 is fed in Falcon centrifugal classifier,
Obtain Falcon centrifugal classifier sorting concentrate and Falcon centrifugal classifier sorting tailing；The Falcon centrifugal classifier
Back-flushing hydraulic pressure is 0.22MPa；
Step 4: the sorting concentrate of Falcon centrifugal classifier obtained in step 3 is fed BGT series surfaction
In paste mixer, and into BGT series surface modification pulp mixing machine, addition kerosene and sec-octyl alcohol carry out processing of sizing mixing, and obtain carbon black of sizing mixing
Ore pulp；The impeller linear velocity of the BGT series surface modification pulp mixing machine is 2.1m/s；
It is sorted Step 5: carbon black ore pulp obtained in step 4 of sizing mixing is fed in flotation column, obtains column choosing essence
Mine and column select tailing；
It is carried out dehydrating Step 6: column concentrate selection obtained in step 5 is fed in filter press, obtains finished product i.e.
Physics deliming concentrate；
Step 7: Falcon centrifugal classifier obtained in step 3, which is sorted column obtained in tailing and step 5, selects tail
Mine is fed in tailing tank.
In the present embodiment, the hardness of water described in step 1 is 70 ° of DH.
In the present embodiment, the dosage of kerosene described in step 4 is the dry tire pyrolysis carbon black of 4.5kg/t, the sec-octyl alcohol
Dosage is the dry tire pyrolysis carbon black of 1400g/t.
Embodiment 4
In conjunction with Fig. 1, a kind of tire pyrolysis carbon black physics de-ash process of the present embodiment the following steps are included:
Step 1: tire pyrolysis carbon black is mixed with water, the carbon black ore pulp that concentration is 110g/L is made；
Ultrasonic disperse is carried out in ultrasonic dispersing machine Step 2: carbon black ore pulp manufactured in step 1 is fed, and is obtained
Disperse black carbon ore pulp；The dispersion power of the ultrasonic dispersing machine is 3900W, and the jitter time of the ultrasonic dispersing machine is
24min；
It is sorted Step 3: disperse black carbon ore pulp obtained in step 2 is fed in Falcon centrifugal classifier,
Obtain Falcon centrifugal classifier sorting concentrate and Falcon centrifugal classifier sorting tailing；The Falcon centrifugal classifier
Back-flushing hydraulic pressure is 0.2MPa；
Step 4: the sorting concentrate of Falcon centrifugal classifier obtained in step 3 is fed BGT series surfaction
In paste mixer, and into BGT series surface modification pulp mixing machine, addition kerosene and sec-octyl alcohol carry out processing of sizing mixing, and obtain carbon black of sizing mixing
Ore pulp；The impeller linear velocity of the BGT series surface modification pulp mixing machine is 2.2m/s；
It is sorted Step 5: carbon black ore pulp obtained in step 4 of sizing mixing is fed in flotation column, obtains column choosing essence
Mine and column select tailing；
It is carried out dehydrating Step 6: column concentrate selection obtained in step 5 is fed in filter press, obtains finished product i.e.
Physics deliming concentrate；
Step 7: Falcon centrifugal classifier obtained in step 3, which is sorted column obtained in tailing and step 5, selects tail
Mine is fed in tailing tank.
In the present embodiment, the hardness of water described in step 1 is 100 ° of DH.
In the present embodiment, the dosage of kerosene described in step 4 is the dry tire pyrolysis carbon black of 9kg/t, the use of the sec-octyl alcohol
Amount is the dry tire pyrolysis carbon black of 1100g/t.
Embodiment 5
In conjunction with Fig. 1, a kind of tire pyrolysis carbon black physics de-ash process of the present embodiment the following steps are included:
Step 1: tire pyrolysis carbon black is mixed with water, the carbon black ore pulp that concentration is 100g/L is made；
Ultrasonic disperse is carried out in ultrasonic dispersing machine Step 2: carbon black ore pulp manufactured in step 1 is fed, and is obtained
Disperse black carbon ore pulp；The dispersion power of the ultrasonic dispersing machine is 3000W, and the jitter time of the ultrasonic dispersing machine is
20min；
It is sorted Step 3: disperse black carbon ore pulp obtained in step 2 is fed in Falcon centrifugal classifier,
Obtain Falcon centrifugal classifier sorting concentrate and Falcon centrifugal classifier sorting tailing；The Falcon centrifugal classifier
Back-flushing hydraulic pressure is 0.22MPa；
Step 4: the sorting concentrate of Falcon centrifugal classifier obtained in step 3 is fed BGT series surfaction
In paste mixer, and into BGT series surface modification pulp mixing machine, addition kerosene and sec-octyl alcohol carry out processing of sizing mixing, and obtain carbon black of sizing mixing
Ore pulp；The impeller linear velocity of the BGT series surface modification pulp mixing machine is 2.5m/s；
It is sorted Step 5: carbon black ore pulp obtained in step 4 of sizing mixing is fed in flotation column, obtains column choosing essence
Mine and column select tailing；
It is carried out dehydrating Step 6: column concentrate selection obtained in step 5 is fed in filter press, obtains finished product i.e.
Physics deliming concentrate；
Step 7: Falcon centrifugal classifier obtained in step 3, which is sorted column obtained in tailing and step 5, selects tail
Mine is fed in tailing tank.
In the present embodiment, the hardness of water described in step 1 is 40 ° of DH.
In the present embodiment, the dosage of kerosene described in step 4 is the dry tire pyrolysis carbon black of 10kg/t, the sec-octyl alcohol
Dosage is the dry tire pyrolysis carbon black of 500g/t.
Embodiment 6
In conjunction with Fig. 1, a kind of tire pyrolysis carbon black physics de-ash process of the present embodiment the following steps are included:
Step 1: tire pyrolysis carbon black is mixed with water, the carbon black ore pulp that concentration is 85g/L is made；
Ultrasonic disperse is carried out in ultrasonic dispersing machine Step 2: carbon black ore pulp manufactured in step 1 is fed, and is obtained
Disperse black carbon ore pulp；The dispersion power of the ultrasonic dispersing machine is 3800W, and the jitter time of the ultrasonic dispersing machine is
30min；
It is sorted Step 3: disperse black carbon ore pulp obtained in step 2 is fed in Falcon centrifugal classifier,
Obtain Falcon centrifugal classifier sorting concentrate and Falcon centrifugal classifier sorting tailing；The Falcon centrifugal classifier
Back-flushing hydraulic pressure is 0.21MPa；
Step 4: the sorting concentrate of Falcon centrifugal classifier obtained in step 3 is fed BGT series surfaction
In paste mixer, and into BGT series surface modification pulp mixing machine, addition kerosene and sec-octyl alcohol carry out processing of sizing mixing, and obtain carbon black of sizing mixing
Ore pulp；The impeller linear velocity of the BGT series surface modification pulp mixing machine is 2.3m/s；
It is sorted Step 5: carbon black ore pulp obtained in step 4 of sizing mixing is fed in flotation column, obtains column choosing essence
Mine and column select tailing；
It is carried out dehydrating Step 6: column concentrate selection obtained in step 5 is fed in filter press, obtains finished product i.e.
Physics deliming concentrate；
Step 7: Falcon centrifugal classifier obtained in step 3, which is sorted column obtained in tailing and step 5, selects tail
Mine is fed in tailing tank.
In the present embodiment, the hardness of water described in step 1 is 0 ° of DH.
In the present embodiment, the dosage of kerosene described in step 4 is the dry tire pyrolysis carbon black of 4kg/t, the use of the sec-octyl alcohol
Amount is the dry tire pyrolysis carbon black of 1500g/t.
Embodiment 7
In conjunction with Fig. 1, a kind of tire pyrolysis carbon black physics de-ash process of the present embodiment the following steps are included:
Step 1: tire pyrolysis carbon black is mixed with water, the carbon black ore pulp that concentration is 120g/L is made；
Ultrasonic disperse is carried out in ultrasonic dispersing machine Step 2: carbon black ore pulp manufactured in step 1 is fed, and is obtained
Disperse black carbon ore pulp；The dispersion power of the ultrasonic dispersing machine is 4000W, and the jitter time of the ultrasonic dispersing machine is
18min；
It is sorted Step 3: disperse black carbon ore pulp obtained in step 2 is fed in Falcon centrifugal classifier,
Obtain Falcon centrifugal classifier sorting concentrate and Falcon centrifugal classifier sorting tailing；The Falcon centrifugal classifier
Back-flushing hydraulic pressure is 0.23MPa；
Step 4: the sorting concentrate of Falcon centrifugal classifier obtained in step 3 is fed BGT series surfaction
In paste mixer, and into BGT series surface modification pulp mixing machine, addition kerosene and sec-octyl alcohol carry out processing of sizing mixing, and obtain carbon black of sizing mixing
Ore pulp；The impeller linear velocity of the BGT series surface modification pulp mixing machine is 2.4m/s；
It is sorted Step 5: carbon black ore pulp obtained in step 4 of sizing mixing is fed in flotation column, obtains column choosing essence
Mine and column select tailing；
It is carried out dehydrating Step 6: column concentrate selection obtained in step 5 is fed in filter press, obtains finished product i.e.
Physics deliming concentrate；
Step 7: Falcon centrifugal classifier obtained in step 3, which is sorted column obtained in tailing and step 5, selects tail
Mine is fed in tailing tank.
In the present embodiment, the hardness of water described in step 1 is 60 ° of DH.
In the present embodiment, the dosage of kerosene described in step 4 is the dry tire pyrolysis carbon black of 8kg/t, the use of the sec-octyl alcohol
Amount is the dry tire pyrolysis carbon black of 900g/t.
Embodiment 8
In conjunction with Fig. 1, a kind of tire pyrolysis carbon black physics de-ash process of the present embodiment the following steps are included:
Step 1: tire pyrolysis carbon black is mixed with water, the carbon black ore pulp that concentration is 80g/L is made；
Ultrasonic disperse is carried out in ultrasonic dispersing machine Step 2: carbon black ore pulp manufactured in step 1 is fed, and is obtained
Disperse black carbon ore pulp；The dispersion power of the ultrasonic dispersing machine is 3200W, and the jitter time of the ultrasonic dispersing machine is
28min；
It is sorted Step 3: disperse black carbon ore pulp obtained in step 2 is fed in Falcon centrifugal classifier,
Obtain Falcon centrifugal classifier sorting concentrate and Falcon centrifugal classifier sorting tailing；The Falcon centrifugal classifier
Back-flushing hydraulic pressure is 0.25MPa；
Step 4: the sorting concentrate of Falcon centrifugal classifier obtained in step 3 is fed BGT series surfaction
In paste mixer, and into BGT series surface modification pulp mixing machine, addition kerosene and sec-octyl alcohol carry out processing of sizing mixing, and obtain carbon black of sizing mixing
Ore pulp；The impeller linear velocity of the BGT series surface modification pulp mixing machine is 2.0m/s；
It is sorted Step 5: carbon black ore pulp obtained in step 4 of sizing mixing is fed in flotation column, obtains column choosing essence
Mine and column select tailing；
It is carried out dehydrating Step 6: column concentrate selection obtained in step 5 is fed in filter press, obtains finished product i.e.
Physics deliming concentrate；
Step 7: Falcon centrifugal classifier obtained in step 3, which is sorted column obtained in tailing and step 5, selects tail
Mine is fed in tailing tank.
In the present embodiment, the hardness of water described in step 1 is 20 ° of DH.
In the present embodiment, the dosage of kerosene described in step 4 is the dry tire pyrolysis carbon black of 3kg/t, the use of the sec-octyl alcohol
Amount is the dry tire pyrolysis carbon black of 1200g/t.
Experiment shows the tire pyrolysis carbon black physics de-ash process provided using above-described embodiment 1-8, can be by ash content
17.82% tire pyrolysis carbon black obtains the physics deliming concentrate that yield is 55.13%, ash content is 12.37% by sorting.
Using a conventional direct flotation technique, since tire pyrolysis particle size carbon black is very tiny, in the feelings of identical floating agent dosage
Under condition, same carbon black be can only obtain into the concentrate that yield is 50.87%, ash content is 15.98% by sorting.And utilize chemistry
Method removes the ash content of tire pyrolysis carbon black, and higher cost, spent acid environmental pollution is serious simultaneously, and subsequent processing is difficult.Therefore,
By separation index as can be seen that present invention process has great advantages.
The above is only presently preferred embodiments of the present invention, is not intended to limit the invention in any way, it is all according to the present invention
Technical spirit any simple modification, change and equivalent structure transformation to the above embodiments, still fall within skill of the present invention
In the protection scope of art scheme.
Claims (10)
1. a kind of tire pyrolysis carbon black physics de-ash process, which is characterized in that the technique the following steps are included:
Step 1: tire pyrolysis carbon black is mixed with water, the carbon black ore pulp that concentration is 60g/L~120g/L is made；
Ultrasonic disperse is carried out in ultrasonic dispersing machine Step 2: carbon black ore pulp manufactured in step 1 is fed, and is dispersed
Carbon black ore pulp；The dispersion power of the ultrasonic dispersing machine is 3000W~4200W, the jitter time of the ultrasonic dispersing machine
For 15min~30min；
It sorts, obtains Step 3: disperse black carbon ore pulp obtained in step 2 is fed in Falcon centrifugal classifier
Falcon centrifugal classifier sorts concentrate and Falcon centrifugal classifier sorts tailing；The recoil of the Falcon centrifugal classifier
Water hydraulic pressure is 0.2MPa~0.25MPa；
It sizes mixing Step 4: the sorting concentrate of Falcon centrifugal classifier obtained in step 3 is fed BGT series surfaction
In machine, and into BGT series surface modification pulp mixing machine, addition kerosene and sec-octyl alcohol carry out processing of sizing mixing, and obtain charcoal black ore of sizing mixing
Slurry；The impeller linear velocity of the BGT series surface modification pulp mixing machine is 2.0m/s~2.5m/s；
Sorted Step 5: carbon black ore pulp obtained in step 4 of sizing mixing is fed in flotation column, obtain column concentrate selection and
Column selects tailing；
It is carried out dehydrating Step 6: column concentrate selection obtained in step 5 is fed in filter press, obtains finished product i.e. physics
Deliming concentrate；
Step 7: by Falcon centrifugal classifier obtained in step 3 sort column obtained in tailing and step 5 select tailing to
Enter into tailing tank.
2. a kind of tire pyrolysis carbon black physics de-ash process described in accordance with the claim 1, it is characterised in that: described in step 1
The hardness of water is 0 ° of DH~100 ° DH.
3. a kind of tire pyrolysis carbon black physics de-ash process according to claim 2, it is characterised in that: described in step 1
The hardness of water is 50 ° of DH.
4. a kind of tire pyrolysis carbon black physics de-ash process described in accordance with the claim 1, it is characterised in that: described in step 4
The dosage of kerosene is the dry tire pyrolysis carbon black of 3~10kg/t, and the dosage of the sec-octyl alcohol is the dry tire pyrolysis of 500~1500g/t
Carbon black.
5. a kind of tire pyrolysis carbon black physics de-ash process according to claim 4, it is characterised in that: described in step 4
The dosage of kerosene is the dry tire pyrolysis carbon black of 5~8kg/t, and the dosage of the sec-octyl alcohol is the dry tire pyrolysis charcoal of 900~1100g/t
It is black.
6. a kind of tire pyrolysis carbon black physics de-ash process according to claim 5, it is characterised in that: described in step 4
The dosage of kerosene is the dry tire pyrolysis carbon black of 6.5kg/t, and the dosage of the sec-octyl alcohol is the dry tire pyrolysis carbon black of 1000g/t.
7. a kind of tire pyrolysis carbon black physics de-ash process described in accordance with the claim 1, it is characterised in that: described in step 1
The concentration of carbon black ore pulp is 90g/L.
8. a kind of tire pyrolysis carbon black physics de-ash process described in accordance with the claim 1, it is characterised in that: described in step 2
The dispersion power of ultrasonic dispersing machine is 3600W, and the jitter time of the ultrasonic dispersing machine is 23min.
9. a kind of tire pyrolysis carbon black physics de-ash process described in accordance with the claim 1, it is characterised in that: described in step 3
The back-flushing hydraulic pressure of Falcon centrifugal classifier is 0.23MPa.
10. a kind of tire pyrolysis carbon black physics de-ash process described in accordance with the claim 1, it is characterised in that: institute in step 4
The impeller linear velocity for stating BGT series surface modification pulp mixing machine is 2.2m/s.
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