CN207347443U - A kind of process system of regeneration hard carbon black used for rubber reinforcement - Google Patents

Abstract

The utility model discloses a kind of process system of regeneration hard carbon black used for rubber reinforcement, reduction furnace including supply air system and sealed set, material inlet, material outlet, air inlet and air outlet are set on the reduction furnace, air inlet is arranged at the top of reduction furnace, air outlet is arranged on reduction furnace bottom, the material pipeline of establishing conjunction material inlet and material outlet between air inlet and air outlet；The supply air system includes wind turbine and connects the gas heating stove of wind turbine, and gas heating stove connects the air inlet of reduction furnace.Using supply air system high-temperature medium gas is provided for reduction furnace, material is from top to bottom passed through into the high-temperature medium gas in reduction furnace, and carry the gaseous products that its cracking produces and depart from material and sent out from air outlet, tar vapor caused by microwave heating removing organic matter is prevented to be condensate on material and it is discharged rapidly reduction furnace, avoid carbon black caused by by tar pollution surface texture, surface-active, surface energy be destroyed, obtain the solid-state carbon black with reinforcing rubber ability.

Description

A kind of process system of regeneration hard carbon black used for rubber reinforcement

Technical field

The utility model is a kind of process system of regeneration hard carbon black used for rubber reinforcement, and in particular to one kind regeneration cracking The preparation facilities of carbon black, belongs to carbon black Preparation equipment field.

Background technology

Carbon black is a kind of industrial carbon products being mainly made of carbon, and purposes is quite varied, the 90% of its total output is usual It is added in rubber, is especially added in rubber tyre and is used as the hard carbon black of increase rubbery intensity.Mend Strong carbon black has complex microstructure, i.e., has unique particle size, internal structure and surface texture on microcosmic, For in theory, carbon black elementary particle is smaller, crystallite dimension is smaller, the defects of on crystallite edge, lattice and unsaturated electric charge It is more, i.e., inside it, surface microstructure it is more complicated, the surface energy and surface-active of such carbon black are higher, its add Reinforcing property into rubber is better.The elementary particle particle diameter of usual hard carbon black exists in 11~500nm, specific surface area 31 × 103~85 × 103 ㎡/kg, such as：N330 is 26~30nm, and specific surface area is 73 × 103~85 × 103 ㎡/kg；N660 For 49~60nm, specific surface area is 31 × 103~43 × 103 ㎡/kg.

The production method of conventional carbon black is very much, such as：Lamp black method, channel process, drum process, mixed gas method, steam stove method, Audit For Process Deng, but only Audit For Process can particularly produce good hard carbon black, such as because production kind of carbon black is more, quality is good：N330、 N660 etc., and account for more than the 95% of carbon black total output as the method mainly used at present, its yield.Audit For Process production of carbon black is Using hydrocarbon-type oil as raw material, a kind of method of carbon black is produced with imperfect combustion through cracking, hydrocarbon-type oil is in China mainly with coal tar Based on oil and its distillage carbolineum, and often producing 1 ton of carbon black averagely needs 1.60 ~ 1.84 tons of feedstock oils of consumption, consumes highest Can reach 2 tons.It is possible thereby to know, in Audit For Process carbon black process, since raw materials for production are expensive, raw material and the energy disappear Consume it is huge, not only make production of carbon black cost occupy it is high-leveled and difficult under, can also produce a large amount of carbon emissions, and caused by harmful substance in discharge Environmental pollution.And on the other hand, theoretical proof, chemical and physical features are all highly stable at typical condition for carbon, mend Chemical reaction can't occur during being added to rubber and finished product is made for strong carbon black or microstructure changes, this is reinforcement The main reason for carbon black is highly stable to rubber reinforcing property, sustained.As long as therefore it has been generally acknowledged that will can initially add The original hard carbon black being added in rubber is kept completely separate with organic matter, with regard to that can obtain reinforcing property and original hard carbon black phase When product.In order to economize on resources, reduce cost, the environmental pollution of reduction directly or indirectly, it is highly desirable that rubber can be recycled Carbon black in glue product, and be used again, rubber system is reused in especially as hard carbon black.

But the carbon black being recovered at present, typically by rotary kiln or vacuum thermal cracking technology, cracks damaged tire and obtains Product carbon, i.e. conventional pyrolytic carbon black；The but this carbon black obtained as byproduct, is caused since particle structure is destroyed Quality is hardened, particle is thick, surface energy and surface-active are extremely low, can not be used in rubber, so that economic value is lost, Cause to take for a long time and stack place, pollution environment.Current existing regenerated carbon black method, is used for conventional pyrolytic carbon black Mechanical crushing, modification, ash disposal are graded one or more combinations in method, such as：

Chinese patent CN103265828A discloses a kind of solid phase graft-modification method for regenerating cracking black carbon （2013.08.28）, by adding organic compound in the thermal cracking carbon black that waste old, plastics Pintsch process produce, by Milling equipment, makes organic compound situ-formed graft obtain the regeneration cracking charcoal of solid phase graft-modification to the surface of thermal cracking carbon black It is black.But this processing all carries out after conventional pyrolytic carbon black has been produced, no matter by how to handle, original hard carbon black Microcosmic unique particle size, internal structure, surface texture have all been not present, it is difficult to make its surface energy and surface-active Reach the level of original hard carbon black, this modification conventional pyrolytic carbon black is even aided with Mechanical Crushing, its reinforcing rubber Performance boost is very small.According to common technical knowledge it is known that Mechanical Crushing be difficult to make carbon black elementary particle reach 11~500nm this A scope, therefore carbon black particle specific surface area degradation, surface modification is carried out on the basis of specific surface area is extremely low and is also difficult to Remarkable result is obtained, carbon black can not be made to reach the requirement of reinforcing rubber.

Chinese patent CN103540172A discloses a kind of scrap rubber plastic products pyrolytic carbon ash disposal and is modified preparation, regeneration carbon black Method and system（2014.01.29）, pyrolytic carbon is made using pyrolytic process in scrap rubber plastic products and is crushed, passes through soda acid Reaction, wherein most ash conversion into soluble-salt and is removed, then is aided with modified change and is pyrolyzed carbon surface micro-chemical environment, New binder course is formed, strengthens the combination power between pyrolytic carbon particle and rubber, plastics.And ash disposal processing is carried out to carbon black, can have Effect reduces ash content index in carbon black, but since Mechanical Crushing, surface modification cannot lift the reinforcing rubber performance of carbon black in itself, because Even if this is handled with reference to these methods, it cannot equally recover the microcosmic unique particle size of carbon black, inside specific surface area Structure, surface texture, surface energy and surface-active, can not still make carbon black reach the requirement of reinforcing rubber.

Above-mentioned processing method and this experienced traditional rotary kiln or true both for the post processing of conventional pyrolytic carbon black The carbon black of empty thermal cracking processes, has occurred that elementary particle reaggregation, the microstructure heavy damage for being difficult to reverse, surface energy Become extremely low with surface-active.Black rubber reinforcing property is first destroyed for this, then the processing method recovered, except increase Outside process complexity, increase equipment and equipment investment and increase production cost, it is also possible to produce new environmental pollution, and final To carbon black but can not much meet the requirement of reinforcing rubber, it is impossible to produce economic benefit, it is difficult to implemented and promoted.

Utility model content

The purpose of this utility model is to provide a kind of process system of regeneration hard carbon black used for rubber reinforcement, air-supply is utilized System provides high-temperature medium gas for reduction furnace, from top to bottom passes through material into the high-temperature medium gas in reduction furnace, and take The gaseous products produced with its cracking depart from rapidly material and are sent out from the air outlet of reduction furnace, and high temperature can prevent gaseous products In tar steam occur condense and be attached on material, prevent material from polluting, high-temperature medium gas carry gaseous products it is rapid Depart from material, then tar pollution thing therein can be entirely prevented to impact carbon black particle, make gum material through Pintsch process Obtained solid carbon black particle structure is not destroyed, so as to keep the reinforcing rubber performance of solid-state carbon black.

The utility model is achieved through the following technical solutions：A kind of process system of regeneration hard carbon black used for rubber reinforcement, Reduction furnace including supply air system and sealed set, sets material inlet, material outlet, air inlet and outlet air on the reduction furnace Mouth, air inlet are arranged at the top of reduction furnace, and air outlet is arranged on reduction furnace bottom, establishing conjunction material inlet between air inlet and air outlet With the material pipeline of material outlet；The supply air system includes wind turbine and connects the gas heating stove of wind turbine, gas heating stove Connect the air inlet of reduction furnace.

The wind turbine is circulating fan, and the air outlet of reduction furnace is sequentially connected tar cold-trap, gas purifier, gas purification Device connects circulating fan entrance, circulating fan outlet connection gas heating stove.

The circulating fan outlet in the connecting pipe of gas heating stove with setting increment gas vent.

Envelope gas feed arrangement is set at the material inlet of the reduction furnace, envelope gas discharging dress is set at the material outlet of reduction furnace Put.

The outlet of the envelope gas drawing mechanism is connected with steel wire separator in turn, carbon black crushes homogeneous refining system and charcoal Black granulating system.

Air intake cover is set on the upper top mesh plate of the reduction furnace, the air inlet of reduction furnace is arranged on inlet wind cover, reduction furnace Bottom mesh plate on set out gas fan housing, the air outlet of reduction furnace is arranged on outlet fan housing.

The foraminous conveyer or mesh carrier bar of transported material are set on the material pipeline.

The reduction furnace combines carbon black reduction furnace for microwave hot gas.

The tar cold-trap includes one or more matching somebody with somebody in chimney cooler, panel cooler or spray cooler Close and use.

The gas purifier includes damping adsorption cleaning device, electrostatic purifier, screening type clarifier or centrifugal One or more in clarifier are used cooperatively.

The utility model compared with prior art, has the following advantages and beneficial effect：

（1）The utility model can be carried during microwave heat rubber material prepares solid-state carbon black using supply air system For the high-temperature medium gas that temperature is 350~700 DEG C, high-temperature medium gas from top to bottom passes through the material in reduction furnace, and will The gaseous products such as tar steam that the organic principle in tire is transformed, on-condensible gas are taken out of rapidly and depart from material, make gas Tar pollution thing in state product can not condense and be attached to surface of material, to carbon black particle when avoiding the traditional gum material from cracking Influence caused by structure, cut-out change the carbon source of original carbon black particle particle diameter, inside and surface texture, avoid original Between carbon black particle and carbon black particle surface forms new carbon bond and closes, and only relies on the carbon black particle that final separation comes out Weaker Van der Waals force with reference to and seem very loose, avoid subsequently using except the processing such as ash content, modification and band pyrolytic carbon black The series of problems such as the process costs increase come and new environmental pollution.

（2）The utility model devises a kind of new reduction furnace, it can be achieved that the effect of high-quality hard carbon black is made, and give up wheel Tire cracking process is used cooperatively using microwave hot gas joint carbon black reduction furnace with hot-air system, makes the carbon black in gum material with having Machine matter quick separating, cut-out are formed about except all carbon sources of original charcoal infrablack in original carbon black, maintain original to greatest extent There is the microstructure of carbon black, reduce the reinforcing property of original carbon black, therefore, the high-quality hard carbon black prepared through this process system, Only need to crush the original particle diameter level that just can reach traditional hard carbon black by simple physical.

（3）In the utility model, high-temperature medium gas from top to bottom through material and carries gas by being passed through above reduction furnace After state product forms gaseous mixture, by being discharged below reduction furnace, dielectric gas upper entering and lower leaving, from top to bottom through the mode energy of material Quickly by pollutant（Gaseous products）Take away, extracted out using negative pressure during practical operation, natural inflow, ensureing clean same of cavity When, moreover it is possible to maintain the stable operation of equipment, suitable industrial production.

（4）The high-temperature medium gas that the utility model uses can use inert gas or gaseous products to be mixed with dielectric gas The gaseous mixture of formation, gaseous mixture is recycled heating and is used as dielectric gas, therefore constantly need not be passed through Jie from the external world Matter gas, can greatly save production gas cost；In actual mechanical process, the tar pollution thing in gaseous mixture can be passed through tar Cold-trap and gas purifier are recycled after removing, during microwave continuous heating damaged tire, the increment gas of generation Can be by increment gas vent（Diversion three-way is such as set）Discharge system, uses it for anything else as fuel gas or collection storage or separately, can Produce additional economic benefit..

（5）The utility model crushes homogeneous refining system and pelletizing of carbon black system successively using steel wire separator, carbon black Regeneration hard carbon black is made with the use of to solid-state carbon black reprocess, carbon black crushes homogeneous refining system energy will be except after steel wire First hard carbon black processed crush to obtain homogeneous refined hard carbon black, refine the primary particle size of hard carbon black for 20~ 200nm, aggregate particle size are 0.2~10 μm, and the refined obtained regeneration hard carbon black finished product grain size size of hard carbon black is suitable, During being added to rubber, good mixing effect, carbon black dispersion is good.

（6）The utility model is simple in structure, the regeneration hard carbon black of preparation have cost of material is low, power consumption of polymer processing is low, into The costly advantage of product, has higher economy profit value.Compared to traditional oils furnace black, its raw material（And energy consumption）Cost reduction More than 50%；Compared to traditional thermal cracking carbon black, power consumption of polymer processing reduces by more than 30%, and the value of finished goods improves more than 400%.

Brief description of the drawings

Fig. 1 is the structure diagram of the utility model.

Wherein, 1-envelope gas feed arrangement, 2-reduction furnace, 3-envelope gas drawing mechanism, 4-steel wire separator, 5-charcoal Black broken homogeneous refining system, 6-pelletizing of carbon black system, 7-microwave generator, 21-outlet fan housing, 22-tar cold-trap, 23-gas purifier, 24-circulating fan, 25-gas heating stove, 26-inlet wind cover, 27-material pipeline, 28-on Push up mesh plate, 29-bottom mesh plate.

Embodiment

The utility model is described in further detail with reference to embodiment, but the embodiment of the utility model is not It is limited to this.

Embodiment 1：

The present embodiment is related to a kind of process system of regeneration hard carbon black used for rubber reinforcement, which includes air-supply and be System, the reduction furnace 2 of sealed set, steel wire separator 4, carbon black crush homogeneous refining system 5 and pelletizing of carbon black system 6.Such as Fig. 1 Shown in structure, reduction furnace 2 is provided with microwave generator 7 using microwave hot gas joint carbon black reduction furnace, for by damaged tire raw material Microwave heating removing wherein organic matter reduces to obtain solid-state carbon black, and in the present embodiment, material inlet, material are set on reduction furnace 2 Outlet, air inlet and air outlet, air inlet are arranged on the top of reduction furnace 2, and air outlet is arranged on 2 bottom of reduction furnace, the inlet air of reduction furnace 2 The material pipeline 27 through material inlet and material outlet is set between mouth and air outlet, supply air system includes wind turbine and connection wind The gas heating stove 25 of machine, gas heating stove 25 connect the air inlet of reduction furnace 2.In the present embodiment, the upper top mesh of reduction furnace 2 Inlet wind cover 26 is set on plate, the air inlet of reduction furnace 2 is arranged on inlet wind cover 26, and gas is set out on the bottom mesh plate of reduction furnace 2 Fan housing 21, the air outlet of reduction furnace 2 are arranged on outlet fan housing 21.

The present embodiment sets envelope gas feed arrangement 1 at the material inlet of reduction furnace 2, and envelope is set at the material outlet of reduction furnace 2 Gas drawing mechanism 3, envelope gas feed arrangement 1 and envelope gas drawing mechanism 3 can prevent gas exchanges inside and outside apparatus system, and can guarantee that Lasting supplies or conveys material to reduction furnace 2, therefore can select the closed storage tank of large capacity, rotation feeder, two-door cut The transitional storehouse changed and the auger conveyor by material envelope gas etc., water seal conveyer or oil also can be selected in envelope gas feed arrangement 1 Seal conveyer etc..

In use, the damaged tire raw material for being broken into bulk is sent to material pipeline 27 by envelope gas feed arrangement 1, microwave adds In thermal process, the high-temperature medium gas after the heating of gas heating stove 25 is passed through into reduction furnace 2 by the air inlet of reduction furnace 2 Body, such as：N₂、CO₂、H₂、CH₄, CO etc., the foraminous conveyer or mesh carrier bar of transported material are set on material pipeline 27, ensures high temperature Dielectric gas from top to bottom passes through material, while carries the gaseous products that the cracking of the organic matter in damaged tire produces and depart from material simultaneously Sent out by the air outlet of the lower section of reduction furnace 2.In the present embodiment, wind turbine uses circulating fan 24, and the air outlet of reduction furnace 2 connects successively Tar cold-trap 22, gas purifier 23 are connect, gas purifier 23 connects 24 entrance of circulating fan, the outlet of circulating fan 24 connection gas Body heating furnace 25, dielectric gas is carried after gaseous products form gaseous mixture and sent out by the air outlet of reduction furnace 2, by tar cold-trap 22 Condensation removes tar steam, and after gas purifier 23 removes the mist of oil that condensation produces, obtained incoagulability product is again by circulated air Machine 24, which is sent, to gas heating stove 25, to be thermally formed high-temperature medium gas and send again to the air inlet of reduction furnace 2.It is burnt in the present embodiment Oil cooling trap 22 can use in chimney cooler, panel cooler or spray cooler etc. it is one or more be used cooperatively, Gas purifier 23 can use damping adsorption cleaning device, electrostatic purifier, screening type clarifier or centrifugal purifier etc. In one or more be used cooperatively.

Since gaseous mixture is constantly circulated as dielectric gas, during microwave heat rubber material, constantly produce Gaseous products in incoagulable gas, such as CH₄And CO, constantly accumulation cause the gaseous mixture in system increment occur, can follow Ring wind turbine 24 exports and sets increment gas vent in the connecting pipe with gas heating stove 25, such as adjustable diversion three-way, passes through Adjusting shunting tolerance to match with increment, this Partial Incremental gas is discharged, the increment gas main component of discharge is fuel gas, Collect storage or separately use it for anything else.

During microwave continuous heating gum material, damaged tire material removes organic matter therein and reduces to obtain solid-state Carbon black, is passed to material outlet, the envelope gas drawing mechanism 3 of material outlet send solid-state carbon black to steel wire by material pipeline 27 Separator 4, through rolling repeatedly, sieve, after magnetic separation removal steel wire, obtains just hard carbon black processed, the first hard carbon black processed and belongs to The after polymerization body of particle, quality is very loose, but there are the non-uniform phenomenon of cohesive strength, therefore, need to be by just reinforcement processed Carbon black send to carbon black and crushes homogeneous refining system 5 again, obtains 20~200nm of primary particle size, the quality of 0.2~10 μm of aggregate particle size Uniformly refined hard carbon black, refined hard carbon black are re-fed into the particle that pelletizing of carbon black system 6 is processed into particle diameter about 2 ~ 5mm, obtain Regenerate hard carbon black finished product.

The above, is only the preferred embodiment of the utility model, and limit in any form is not done to the utility model System, every any simple modification made according to the technical essence of the utility model to above example, equivalent variations, each falls within Within the scope of protection of the utility model.

Claims (10)

1. A kind of 1. process system of regeneration hard carbon black used for rubber reinforcement, it is characterised in that：Including supply air system and sealed set Reduction furnace（2）, the reduction furnace（2）On set material inlet, material outlet, air inlet and air outlet, air inlet is arranged on reduction Stove（2）Top, air outlet are arranged on reduction furnace（2）Bottom, establishing conjunction material inlet and material outlet between air inlet and air outlet Material pipeline（27）；The supply air system includes wind turbine and connects the gas heating stove of wind turbine（25）, gas heating stove （25）Connect reduction furnace（2）Air inlet.
2. A kind of 2. process system of regeneration hard carbon black used for rubber reinforcement according to claim 1, it is characterised in that：It is described Wind turbine is circulating fan（24）, reduction furnace（2）Air outlet be sequentially connected tar cold-trap（22）, gas purifier（23）, gas Clarifier（23）Connect circulating fan（24）Entrance, circulating fan（24）Outlet connection gas heating stove（25）.
3. A kind of 3. process system of regeneration hard carbon black used for rubber reinforcement according to claim 2, it is characterised in that：It is described Circulating fan（24）Outlet and gas heating stove（25）Connecting pipe on set increment gas vent.
4. A kind of 4. process system of regeneration hard carbon black used for rubber reinforcement according to claim 1, it is characterised in that：It is described Reduction furnace（2）Material inlet at set envelope gas feed arrangement（1）, reduction furnace（2）Material outlet at set envelope gas drawing mechanism （3）.
5. A kind of 5. process system of regeneration hard carbon black used for rubber reinforcement according to claim 4, it is characterised in that：It is described Seal gas drawing mechanism（3）Outlet be connected with steel wire separator in turn（4）, carbon black crush homogeneous refining system（5）And carbon black Granulating system（6）.
6. A kind of 6. process system of regeneration hard carbon black used for rubber reinforcement according to claim 1, it is characterised in that：It is described Reduction furnace（2）Upper top mesh plate on set air intake cover, reduction furnace（2）Air inlet be arranged on inlet wind cover（26）On, reduction furnace（2） Bottom mesh plate on set out gas fan housing（21）, reduction furnace（2）Air outlet be arranged on outlet fan housing（21）On.
7. A kind of 7. process system of regeneration hard carbon black used for rubber reinforcement according to claim 1, it is characterised in that：It is described Material pipeline（27）On set the foraminous conveyer or mesh carrier bar of transported material.
8. A kind of 8. process system of regeneration hard carbon black used for rubber reinforcement according to claim 1, it is characterised in that：It is described Reduction furnace（2）Combine carbon black reduction furnace for microwave hot gas.
9. A kind of 9. process system of regeneration hard carbon black used for rubber reinforcement according to claim 2, it is characterised in that：It is described Tar cold-trap（22）It is used cooperatively including one or more in chimney cooler, panel cooler or spray cooler.
10. A kind of 10. process system of regeneration hard carbon black used for rubber reinforcement according to claim 2, it is characterised in that：Institute State gas purifier（23）Including damping adsorption cleaning device, electrostatic purifier, screening type clarifier or centrifugal purifier In one or more be used cooperatively.