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Spouted bed low-temp. pyrolysis method of waste rubber and its equipment

A low-temperature pyrolysis and spouted bed technology, applied in the field of waste treatment, can solve the problems of large construction investment and unsuitability for small and medium-sized enterprises, and achieve the effects of saving energy costs, reducing sulfide content, and improving heat and mass transfer efficiency

Inactive Publication Date: 2003-07-09
ANSHUN ENTERPRISE +1
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Problems solved by technology

The storage, transportation and use of combustible gas is a complex system engineering, so this kind of technology construction requires a lot of investment and is not suitable for small and medium-sized enterprises.

Method used

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  • Spouted bed low-temp. pyrolysis method of waste rubber and its equipment
  • Spouted bed low-temp. pyrolysis method of waste rubber and its equipment
  • Spouted bed low-temp. pyrolysis method of waste rubber and its equipment

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Embodiment Construction

[0021] Such as figure 1 As shown, waste rubber is added into the spouted bed reactor 5 by feeder 4 . The combustible gas 2 and the air are respectively driven by the fan 1 and enter the burner 3 in a certain proportion, and the fan 1, the combustible gas 2 and the burner 3 form a high-temperature flue gas generating part. The flue gas produced by combustion has a certain pressure and velocity, so as to ensure that the rubber particles can be spouted after the flue gas enters the spouted bed reactor 5 .

[0022] Such as figure 2 , 3 As shown, in the embodiment 1 and 2 using the traditional spouted bed or the guide tube spouted bed as the reactor, the rubber particles in the central part of the spouted bed reactor (i.e. the spouting zone) are sprayed upwards at a high speed in dilute phase form during operation. , in the other part of the spouted bed (that is, the annular area) the rubber particles move downward at a low speed in a dense phase.

[0023] Such as Figure 4 A...

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Abstract

The method for treating waste rubber includes the following steps: adopting waste rubber particles, feeding them into spouted bed reactor by means of feeder, using fan to respectively drive flammable gas and air and feeding them into the combustor, and feeding the flue gas produdced by combustion into the spouted bed reactor to make rubber particles form spouting so as to implement low-temp. polyrolysis of rubber particles. Its equipment is formed from fan, flammable gas source, combustor, feeder, spouted bed, cyclone separator, static dust-remover, condensator, flowmeter, thermometer and control device. The carbon black recovered from waste rubber by means of said process can be used as additive of rubber product, the recovered organic liquid can be used as chemical raw material and the gas produced in the reaction can be used as supplemented energy source for pyrolysis reaction.

Description

Technical field [0001] The invention relates to the field of waste treatment, and is mainly used for waste rubber treatment, in particular to a spouted bed low-temperature pyrolysis waste rubber method and a device thereof. Background technique [0002] At present, the main method of domestic waste rubber treatment is to produce reclaimed rubber, which accounts for about 90% of recycled rubber. The situation in foreign countries is that reclaimed rubber is rarely produced, mainly fine rubber powder. The process of producing reclaimed rubber will produce secondary pollution, so reclaimed rubber is not the future development direction. There are a series of advantages when making waste rubber into fine rubber powder, such as no secondary pollution, and up to 50% can be mixed in the rubber in industrial products (while the amount of reclaimed rubber can only be less than 20%. And it can only It is used in low-grade products such as bicycle tires). However, the production of ...

Claims

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Application Information

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IPC IPC(8): C08J11/12C10G1/10
CPCY02W30/62
Inventor 徐圣言刘伟民
Owner ANSHUN ENTERPRISE
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