CN2591041Y

CN2591041Y - Improved waste tyre thermal cracking apparatus

Info

Publication number: CN2591041Y
Application number: CN 02293089
Authority: CN
Inventors: 王林生
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-12-28
Filing date: 2002-12-28
Publication date: 2003-12-10
Anticipated expiration: 2012-12-28

Abstract

The utility model relates to the improvement of a thermal cracking apparatus which can produce low molecular hydrocarbon mixture and carbon black by thermal cracking treatment of waste tyres. The utility model is characterized in that the radial direction of a rotary shaft of a stirring scraping plate of a cracking kettle is provided with a long fixing shaft sleeve. As a consequence, the utility model effectively prevent steel wires from winding the rotary shaft. Thus, the utility model simply realizes effective and quick separation of the steel wires of the tyres, and as a consequence, the tyres can be cracked by directly entering the kettle without breaking and disassembling. Thus, the utility model reduces requirements for feeding cutting blocks and simplifies procedures of pretreatment and aftertreatment. The exterior of the cracking kettle is also provided with a water spraying apparatus which can spray the water into the kettle so as to drive the hydrocarbon steam in the kettle, and thus, the remaining high temperature combustible hydrocarbon steam in the kettle can be exhausted. Besides, the utility model can discharge the carbon black and feed the material under high temperature without dropping the temperature. The utility model has the advantages of little heat loss, high utilization rate of heat energy, low cracking energy consumption, shortened cracking period in the kettle and high production efficiency.

Description

The damaged tire thermal cracker of improvement

Technical field

Utility model is about the waste rubber thermo-cracking is handled, the improvement of producing the thermal cracker of low molecular hydrocarbon mixture (as oil fuel, gas) and carbon black, and the cracking that is particularly useful for damaged tire is handled.

Background technology

Along with developing of automobile industry, the damaged tire generation grows with each passing day, and has become big public hazards of modern civilization society.For handling these refuses, a kind of method that people adopt is a thermo-cracking, by being heated the dried cracking of staying, produce low-molecular-weight oil fuel, gas and carbon black, reach and both eliminate environmental pollution, refuse is fully utilized, turn waste into wealth, make the offal treatment resource utilization.

Known various still formula crackers (internal thermal cracking still), as Chinese patent 95245119,00208005 etc., owing to fail better to solve the efficient recovery technology of steel wire in the tire thermal cracking processes, therefore when the thermo-cracking waste tire, all need it is cracked frustillatum, treat to discharge with carbon black after cracking finishes, by methods such as magnetic separation or screenings tiny steel wire section is separated with carbon black again.Not only increased pre-treatment (stripping and slicing) and aftertreatment (carbon black separates with short steel wire) workload, made processing cost increase, and be unfavorable for the easy recovery of steel wire.

Secondly, known various still formula cracker, be a still one still gap cracking, promptly in still, place waste rubber, after the intensification cracking finishes, during for the row's of avoiding carbon black in the still high temperature, hydrocarbon steam contact with outside air and cause flame danger, usually need at first lower the temperature, with the cracking still temperature drop to lesser temps as below 100 ℃, then just can the row's of opening the door carbon black prepurging, reinforced again again (350-450 ℃) cracking that heats up.This batch by cooling one intensification interval type cracking, the one, cause the significant wastage of heating energy source, it is higher to make this type of handle energy consumption, the 2nd, the blowing out cooling, the production cycle is longer, and the cracking still utilising efficiency is lower, recruitment is many, therefore actual treatment is usually lost money, and is profitless, thereby lacks actual application value.

In addition, because cracking still is dry distillation, add carbon black thermal resistance influence at the bottom of the still, naked light burning heating easily causes at the bottom of the still because of high temperature oxidation and corrosion, causes easily to burn at the bottom of the cracking still logically, and work-ing life is shorter.

Summary of the invention

The purpose of utility model is to provide a kind of stripping and slicing pre-treatment that do not need substantially, directly cracked damaged tire thermal cracker at the deficiency of prior art existence.

Another purpose of utility model is to provide a kind of thermo-cracking cycle short, less cooling between still, production efficiency height, the damaged tire thermal cracker that energy consumption is low.

A purpose again of utility model is to provide a kind of naked light heating, damaged tire thermal cracker of cracking still long service life of being applicable to.

Utility model first purpose realizes, the main improvement is that the stirring scratch board rotating shaft radially is provided with the major axis cover that maintains static in still, to prevent isolating long steel wire twisting shaft in the bulk tire thermal cracking processes, make utility model can be used for directly handling bulk even whole damaged tire, and do not need again for preventing that separating the steel wire twisting shaft cracks into fritter.Specifically, utility model damaged tire thermal cracker comprises the cracking still of being with the bottom stirring scratch board, the opening for feed on still top and splitting gas relief outlet, and the bottom slag notch is characterized in that the rotating shaft of said cracking still stirring scratch board radially has the major axis cover that maintains static.The said major axis cover of utility model mainly plays and stops that steel wire prevents to twine axle and transfers to usefulness, for avoiding the axle sleeve internal memory to be difficult for the hydrocarbon steam of discharging, influence high temperature to drive still simultaneously, and said major axis cover better adopts the opening open design, so just can not accumulate hydrocarbon steam; For helping under the scraper plate agitaion forming steel wire group, wherein a kind ofly be preferably employing radially for stretching out blade structure, prevent twining agglomerating better effects if like this.Tire is the thermo-cracking fusing in still, steel wire separates to sink, stop down in stirring of bottom scraper plate and covering of the fan, the separation of steel filament is easily agglomerating, accumulate at the bottom of still, thereby better solved the shortcoming that the long steel wire of tire twines axle, thereby can directly handle relatively large shape, and steel wire also obtains the easy recovery that utilizes as 1/2 or above tire.

Utility model second purpose realizes, it is characterized in that outside thermally cracked kettle, being provided with the waterworks that is used to drive hydrocarbon steam in the still, cracking finish need open still at the bottom of row carbon black in still, spray water in front of the door, high temperature makes into, and water becomes water vapor, high temperature, hydrocarbon steam in the still is driven row's (pressure) to be gone out, make to reach in the high-temperature kettle and do not have the flammable hydrocarbon steam of high temperature substantially, so just eliminated the flame danger that high temperature row's carbon black and charging easily cause, temperature in the kettle can not reduce much yet simultaneously, help the quick cracking of next still, save the cracking power consumption.The said waterworks of utility model, a kind of the easiest be that high-order quantitatively water tank is set outside still, promptly according to the cracking still size, be provided with the basic quantitative water tank that can drive high temperature, hydrocarbon steam in the most still, all spray into water in the water tank in the still, just can accomplish substantially to the greatest extent hydrocarbon steam flood in the still, both convenient, simple again.

Utility model the 3rd purpose realizes, the surface build-up welding that it is characterized in that starting to exchange fire at the bottom of still has the fire-resistant oxidation resistant layer, thereby slowed down the oxidation corrosion that is subjected to the high temperature naked light at the bottom of the still greatly, reduced the material requirements of making cracking still, saved equipment cost, and effectively prevented to have prolonged the work-ing life of cracking still at the bottom of the flame high temperature ablation still.

Utility model damaged tire thermal cracker, owing to the major axis cover that maintains static radially is set in the rotating shaft of thermally cracked kettle stirring scratch board, especially radially be with the uncovered axle sleeve of flabellum, prevented that effectively the long steel wire of tire from rotating twisting shaft with rotating shaft, conveniently realized effective sharp separation of tyre wire, make tire need not to crack, can directly use bulk as 1/2 in addition whole tire advance the still cracking, not only reduced charging stripping and slicing requirement, pre-treatment and postprocessing working procedures have been simplified, reduced processing cost, but also easy the recovery can be utilized steel wire.Secondly, the outer waterworks of driveing hydrocarbon steam in the still that is provided with of cracking still, can be before opening ash gate by the water vapor of in still, spraying water and becoming, the flammable hydrocarbon steam of residue high temperature in the still is drained, thereby do not need by falling end still temperature, just can the row's of opening the door carbon black, charging, reach the black furnace deslagging of need not lowering the temperature, the high temperature charging, calorific loss is few, heat energy utilization rate height, and the cracking energy consumption is low, and can improve thermo-cracking speed once more, can realize do not lower the temperature discharge, charging, shorten lytic cycle, the production efficiency height, processing cost is low, has improved the processing economic benefit.The face of starting to exchange fire at the bottom of the still increases the fire-resistant oxidation resistant layer, has not only reduced the material requirements of making cracking still, has saved equipment cost, and has effectively prevented to have prolonged the work-ing life of thermally cracked kettle greatly at the bottom of the flame high temperature ablation still.

Below in conjunction with the description of two indefiniteness embodiment, further specify utility model structure and advantage.

Description of drawings

Fig. 1 is embodiment 1 a thermally cracked kettle structural representation.

Fig. 2 is Figure 1A-A structural representation.

Fig. 3 is Figure 1B-B structural representation.

Embodiment

Embodiment 1: referring to accompanying drawing, the airtight cracking still 1 of utility model damaged tire thermo-cracking, the bottom is circular arc, 1.1 built-up welding of counter-fire face have the fire-resistant oxidation resistant layer, top, top is respectively equipped with the tilting tubulose feeding cylinder 7 with two road gates 7.1 and 7.2, the catalytic reactor 4 that connects the hydrocarbon steam outlet, with be communicated with the high-order quantitatively water tank 8 that is used to drive hydrocarbon steam in the still in the still, carbon black relief outlet 12 is arranged at the bottom, the scraper plate upper position is equipped with steel wire relief outlet 11, have in the still with at the bottom of the still near and the stirring scratch board 2 that coincide, scraper plate rotating shaft 10 radially is fixed with does not rotate three long flabellums of putting 3 triangular in shape.7 liang of gatehouses of feeding cylinder are provided with the external combustion chamber 6 that is communicated with feeding cylinder, and catalytic reactor 4 links to each other with gas transmission (oil) pipe 9 of downward oblique setting, and gas transmission (oil) caliber is to there being condenser 5, and the baffle plate 13 that stretches out is downwards radially arranged at each flabellum bottom.

First still cracking, damaged tire enters cracking still by feeding cylinder 7, close feeding cylinder gate 7.1 and 7.2, to cracking still heating (bottom and periphery heating), make in the still and heat up as 350-450 ℃, built-in tire is subjected to thermal cracking gasification, and low molecular hydrocarbon steam enters catalyzing tank 4 by steam outlet and discharges, be condensed into liquid co-fuel oil (can further handle) through condenser 5, deliver to collection container (or further handling) by transfer lime 9.The stirring scratch board effect, the one, prevent still prodelta clay carbon, two stirrings have been accelerated heat passage, make temperature in the kettle even, can improve rate of cleavage, and three help separating the steel wire balling-up concentrates, and four-function is in discharging carbon black.The fixed length flabellum 3 that rotating shaft radially is provided with has effectively prevented separation steel wire twisting shaft, also helps separating simultaneously the steel wire balling-up and concentrates, and the baffle plate 13 of bottom has prevented that steel wire from piercing flabellum and squeegee gap.After the complete cracking of damaged tire (no oil droplet is discharged), open quantitative water tank 8 valves, in still, spray water, high temperature makes into, and water becomes water vapor, drive remaining flammable hydrocarbon steam in the still, after hydrocarbon steam drains, open and close after row's carbon black door 12 is discharged carbon blacks at the bottom of the still, opening the sluices 7.1 makes still inner top small quantities of hydrocarbon steam it be burnouted (preventing the outside flame of charging opening) by combustion chamber 6, opens to get and closes after steel wire door 11 reclaims steel wires.Opening the sluices 7.2 adds damaged tire in cracking still, close two gates in less cooling or do not reduce beginning next round cracking under the still temperature substantially.

Blended fuel is further handled, and can not obtain standard compliant gasoline, diesel oil.

Embodiment 2: omit the radially long flabellum 3 of fixed triangle setting of the interior rotating shaft of still, and steel wire relief outlet 11, can be used for plastic waste or waste rubber that cracking does not have steel wire.

For raising adds heat utilization efficiency, utility model also can be provided with heat absorption fin (better shape rises in the shape of a spiral) at the cracking still periphery wall, to increase the cracking still endotherm area, combustion flame and cracking still are prolonged duration of contact, improve fuel availability, fuel economy, it is even also to help temperature in the kettle simultaneously.

Claims

1, a kind of damaged tire thermal cracker comprises the cracking still of being with the bottom stirring scratch board, the opening for feed on still top and splitting gas relief outlet, and the bottom slag notch is characterized in that the rotating shaft of said cracking still stirring scratch board radially has the major axis cover that maintains static.

2,, it is characterized in that said major axis cover radially opens wide according to the described damaged tire thermal cracker of claim 1.

3,, it is characterized in that said major axis cover is for extending radially out blade structure according to the described damaged tire thermal cracker of claim 1.

4,, it is characterized in that the baffle plate that stretches out is radially arranged at said major axis cover bottom downwards according to claim 1,2 or 3 described damaged tire thermal crackers.

5,, it is characterized in that said cracking still has to spray water outward and be used to drive the waterworks of hydrocarbon steam in the still in still according to the described damaged tire thermal cracker of claim 1.

6,, it is characterized in that said waterworks is high-order quantitatively water tank according to the described damaged tire thermal cracker of claim 5.

7,, it is characterized in that said opening for feed is one the feeding cylinder of twice gate to be arranged according to the described damaged tire thermal cracker of claim 1.

8,, it is characterized in that said feeding cylinder two gatehouses are provided with the combustion chamber of connection outward according to the described damaged tire thermal cracker of claim 7.

9,, it is characterized in that said cracking still periphery wall has the heat absorption fin according to the described damaged tire thermal cracker of claim 1.

10,, it is characterized in that said heat absorption fin makes progress in the shape of a spiral according to the described damaged tire thermal cracker of claim 9.