CN2871159Y

CN2871159Y - Microwave rubber pyrolyzer

Info

Publication number: CN2871159Y
Application number: CNU2005200794055U
Authority: CN
Inventors: 李晟
Original assignee: Tianshui Huayuan Pharmaceutical Equipment Technology Co Ltd
Current assignee: Tianshui Huayuan Pharmaceutical Equipment Technology Co Ltd
Priority date: 2005-09-16
Filing date: 2005-09-16
Publication date: 2007-02-21
Anticipated expiration: 2015-09-16

Abstract

The utility model mainly relates to a structure of a microwave rubber pyrolyzer.. A microwave rubber pyrolyzer. comprises a box (2), a switchable door (3) on one side of the box, a gas collecting tube (7) on the box (2), a microwave heating system (1) on the wall inside the box (1). The utility model is simply and reasonably designed. The calorific conduction of rubber is very low. The prior art of the heat cracking is to heat with steam or far infrared by the rubber with its activator. Since the heat is exchanged from the external to the internal with medium, the heating time would be long and the efficiency is very low. The microwave heating is different from the traditional heating method. The microwave heating is to heat the medium from the internal with the microwave energy. The heating speed is very quick. High efficiency and energy saving have shortened the cracking time of rubber greatly. The advanced microwave designing can improve the heating homogeneity and quality. The utility model can be controlled automatically and can improve the working condition.

Description

The microwave rubber cracking furnace

Technical field:

The utility model relates generally to a kind of structure of microwave rubber cracking furnace.

Background technology:

Since last century the seventies, states such as France, Japan, the U.S., Sweden, Britain, Italy, Spain, the microwave energy application technology not only has been widely used in the sulfuration preheating of various extruding adhesive tape, sebific duct, and be used for the sulfuration preheating of all kinds of tires, it is the magnetron energy regenerative in parallel of a plurality of 1～5KW of 2450MHz that employed microwave source adopts frequency mostly, and it is 915MHz that the sizing material of big carrying surface is adopted frequency.Microwave generator has good adjusting and control performance, heater can specifically design according to multiple difform sizing material, and travelling-wave type, standing wave type and slow-wave structure etc. are arranged.

China has adopted the microwave vulcanization new technology since reform and opening-up, new technology, and introduced tens microwave seal bar continuous vulcanization production lines from countries such as West Germany, Japan, Spain, Britain, mostly normally come into operation.For further applying, took the lead by the Ministry of Chemical Industry in 1988, units concerned carry out production domesticization work to the state-of-the-art sealing joint strip continuous vulcanization production line that West Germany BESTOFF company introduces.

Along with the development of microwave energy application technology, the producer of some introducing equipment uses producer with microwave energy and cooperates, and has set about the existing problem of vulcanization of rubber equipment of import is transformed, and its product quality and output are greatly improved.Microwave energy is used producer and has also successively been developed some relevant rubber microwave vulcanizing equipments simultaneously, because technology prematurity still at that time, inadequate communication is widelyd popularize always.In recent years, the application of multitube energy regenerative on microwave vulcanization of rubber equipment makes a breakthrough the microwave vulcanization of rubber, also moves to maturity just day by day and perfect.The micro wave regeneration desulfurization of rubber is succeedd abroad.The microwave desulfurization of u s company " Goodyear tire and rubber co " begin one's study butyl rubber, second third glue etc. in 1971, drop into suitability for industrialized production in 1977 and be named microwave desulfurization, obtained United States Patent (USP) in 1978, and again it had been made significant improvement, obtain patent again to the said firm in 1984.Meanwhile, people such as Japanese woods scape three, Yu Tianchun have also delivered the report and the patent of micro wave regeneration rubber desulfurizing method and commercial Application device in Japan.It is reported the industrial applications that microwave rubber regeneration method has been succeedd abroad.

Annual in the world tire output is up to 7,000,000 tons, and scrappage is up to 22.4%.Damaged tire has become one of refuse source maximum in the world today.

Scrap rubber belongs to thermoset copolymer material, is difficult to degraded under field conditions (factors), if abandon in the face of land or be embedded in the underground more than ten years all imputrescibility is rotten.The accumulation land occupation of scrap rubber, contaminated environment.The whole piece damaged tire is deposited in together also can grow mosquito, not only damages residents ' health and fire hazardous.Therefore, although scrap rubber proportion in the solid waste total amount is less, be one of subject matter of Solid Waste Treatment.The recycling cost of scrap rubber is higher, and technical difficulty is big, and the past, people regarded it as refuse, only considers how to handle clean.Enter after the seventies in 20th century, along with development of science and technology, it is found that recycling scrap rubber can save the production substantial oil that synthetic rubber consumed, beginning is recycled it by every possible means, perhaps as the packing material of rubber and plastics, perhaps list is produced rubber with rubber powder, has opened up the New Times of scrap rubber recycling.

The scrap rubber utilization is that discarded processes such as tire, pipe, band, industrial rubber articles, rubber overshoes and rubber plant's waste material are reclaimed, process and utilize.The recycling of scrap rubber has whole utilization, regeneration and 3 kinds of modes of heat utilization substantially.The whole utilization is that damaged tire is carried out whole utilization, as the processing of the carrying out nerve retreads, fish shelter, water and soil conservation material, fender, construction that make it to recover original purposes are with mud bucket, physical game equipment, road pad, track buffering material, pasture fence etc.Regeneration is that damaged tire is made reclaimed rubber or rubber powder.Heat utilization divides pyrolytic and two classes of directly burning: pyrolytic is with damaged tire hot cracked multiple destructive distillation analytes such as miscella, pyrolysis gas and carbon black that obtain under catalyst action; Directly burning is damaged tire to be acted as a fuel directly be used.

China is a rubber consumption big country.Calendar year 2001 consumes rubber 2,790,000 t altogether, is only second to the U.S. (281.2 ten thousand t), occupies the 2nd in the world.According to IRSG statistics, 2002 China's rubber consumption figure (3,060,000 t) surpass the U.S. (285.4 ten thousand) first, become world's rubber and consume first big country, the U.S. occupies the second, Japan (182.7 ten thousand) the 3rd.In other words, China also will become maximum in the world scrap rubber and produce state when becoming maximum in the world rubber producing country and country of consumption.It is estimated that the scrap rubber composite of the annual generation of China at present is 5,000,000 t nearly.So a large amount of scrap rubber materials is if handle early, not only contaminated environment but also waste resource.

The cracking of damaged tire is reclaimed has become the problem that countries in the world are very paid close attention to.It is under the situation of anoxic or limited oxygen supply fully damaged tire to be heated that the damaged tire vacuum cracking technology of being researched and developed can be ground in Guangzhou, make its high molecular polymer and organic additive be degraded to low molecule or micromolecular compound, make the limonene in the pyrolysis oil of recovery reach 11%.The rubber heat conductivility is poor, and the method for thermal cracking adopts steam or Far-infrared Heating with sizing material and catalyst thereof and since heating-up temperature be by the medium outside to inside heat conduction at leisure, so its heat time heating time is long, efficient is low.

The utility model content:

The purpose of this utility model is to avoid the deficiencies in the prior art part and a kind of microwave rubber cracking furnace is provided.

The purpose of this utility model can be by realizing by the following technical solutions: a kind of microwave rubber cracking furnace, include casing (2), one side at casing (2) is provided with openable door (3), also be provided with gather qi together pipe (7) on the casing (2), its main feature is also to include to be provided with microwave heating system (1) on the box body wall of casing (2).

The casing of described microwave rubber cracking furnace is provided with transmitting device in (2), transmitting device by actuating unit (62) pass casing (2) by driving-belt/or chain connect conveyer belt (61).Damaged tire (9) is placed on the conveyer belt (61), and the residue after the thermal cracking can transport casing (2) by transport tape (61).

Microwave system of the present utility model (1) is provided with microwave feed-in mouth (14) on casing (2), be provided with nonmetal division board (13) in it, microwave feed-in mouth (14) is provided with excitation cavity (15), is provided with waveguide (12) between microwave source (11) and the microwave feed-in mouth (14); Can be provided with many row's microwave feed-in mouths (14) in casing (2) border, upper edge.Described microwave source (11) be magnetron or in, the output of low power microwave transmitting tube or platinotron.The mode of feed-in microwave can have multiple, the low power microwave transmitting tube directly can be contained in the waveguide (12), also can connect feed-in by waveguide, connects the HIGH-POWERED MICROWAVES generator with waveguide.

The casing of described microwave rubber cracking furnace (2) is located on the carriage (5).On casing (2), be provided with safety valve (4).Also be provided with temperature-adjusting device (81), pressure-indication means (82), temperature indicating device (83).

The beneficial effects of the utility model are, and are simple in structure, reasonable in design.The rubber heat conductivility is poor, the conventional method of thermal cracking be with sizing material and wherein catalyst adopt steam or Far-infrared Heating since heating-up temperature be by the medium outside to inside heat conduction at leisure, so its heat time heating time is long, efficient is low.And heating using microwave is different fully with traditional heating mode, and it is microwave energy to be penetrated into heated medium inside directly carry out the integral body heating, so heating is energy-efficient rapidly, has shortened the rubber thermal cracking time greatly.Consummate microwave designing can make its heating uniformity better, the quality height, and can adopt automation control, improve workman's working condition greatly.

Description of drawings:

Be described in further detail below in conjunction with the most preferred embodiment shown in the accompanying drawing:

Fig. 1 looks cross-sectional schematic for the master of the utility model embodiment 1.

Fig. 2 is the vertical view of Fig. 1.

Fig. 3 looks cross-sectional schematic for the master of the utility model embodiment 2.

Fig. 4 looks cross-sectional schematic for the left side of Fig. 3.

Fig. 5 is the schematic diagram of microwave system (1).

The specific embodiment:

Embodiment 1: see Fig. 1, Fig. 2, Fig. 5, vertical microwave rubber cracking furnace has casing 2, is provided with openable door 3 on casing 2, also is provided with gather qi together pipe 7 on the casing 2, is provided with microwave heating system 1 on the box body wall of casing 2.Microwave system 1 is provided with microwave feed-in mouth 14 on casing 2, be provided with nonmetal division board 13 in it, and microwave feed-in mouth 14 is provided with excitation cavity 15, is provided with waveguide 12 between microwave source 11 and the microwave feed-in mouth 14; Can be provided with many row's microwave feed-in mouths 14 in border, casing 2 upper edge.Casing 2 is located on the carriage 5.On casing 2, be provided with safety valve 4, temperature-adjusting device 81, pressure-indication means 82, temperature indicating device 83.

Embodiment 2: see Fig. 3, Fig. 4, horizontal microwave rubber cracking furnace has casing 2, is provided with openable door 3 in the two sides of casing 2, also is provided with gather qi together pipe 7 on the casing 2, is provided with microwave heating system 1 on the box body wall of casing 2.Be provided with transmitting device in the casing 2, transmitting device passes casing 2 by actuating unit 62 and connects conveyer belt 61 by driving-belt.All the other structures are identical with last example.

Claims

1. a microwave rubber cracking furnace includes casing (2), is provided with openable door (3) in the one side of casing (2), also is provided with gather qi together pipe (7) on the casing (2), it is characterized in that also including being provided with microwave heating system (1) on the box body wall of casing (2).

2. microwave rubber cracking furnace as claimed in claim 1 is characterized in that being provided with transmitting device in the described casing (2), transmitting device by actuating unit (62) pass casing (2) by driving-belt/or chain connect conveyer belt (61).

3. microwave rubber cracking furnace as claimed in claim 1 or 2, the described microwave system of its feature (1) is provided with microwave feed-in mouth (14) on casing (2), be provided with nonmetal division board (13) in it, microwave feed-in mouth (14) is provided with excitation cavity (15), is provided with waveguide (12) between microwave source (11) and the microwave feed-in mouth (14); Can be provided with many row's microwave feed-in mouths (14) in casing (2) border, upper edge.

4. microwave rubber cracking furnace as claimed in claim 3, it is characterized in that described microwave source (11) for magnetron or in, the output of low power microwave transmitting tube or platinotron.

5. microwave rubber cracking furnace as claimed in claim 4, its feature also include casing (2) and are located on the carriage (5).

6. microwave rubber cracking furnace as claimed in claim 5, its feature also include and be provided with safety valve (4) on casings (2).

7. microwave rubber cracking furnace as claimed in claim 6, its feature also include and be provided with temperature-adjusting device (81), pressure-indication means (82), temperature indicating device (83) on casings (2).