Pitch hot mix plant recycling tail gas treatment device and method

A technology for exhaust gas treatment and thermal regeneration, which is applied in combustion methods, lighting and heating equipment, combustion types, etc., can solve the problems of continuous production and high treatment costs, and achieve the effect of long service life of equipment

Pending Publication Date: 2017-10-20
FUJIAN SOUTHERN HIGHWAY MECHANICAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

With the existing asphalt thermal regeneration exhaust gas treatment device, as the treatment progresses, the dust and asphalt fume are coated and agglomerated on the filter device, and the treatment efficiency gradually decreases. It is necessary to manually clean or replace the filter device regularly, which cannot be achieved continuously. Production and processing costs are high

Method used

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  • Pitch hot mix plant recycling tail gas treatment device and method
  • Pitch hot mix plant recycling tail gas treatment device and method

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Embodiment Construction

[0019] The present invention will be further described below through specific embodiments.

[0020] refer to Figure 1 to Figure 2 As shown in the figure, an asphalt plant mixed heat regeneration tail gas treatment device includes a regeneration drying drum 1, a flue gas transmission device 2, and a primary drying drum 3. The tail of the regeneration drying drum 1 is provided with a recycled material storage bin 11 and a metering hopper 12, and the flue gas The transmission device 2 includes a flue gas separator 21, an ash unloading valve 22, a mixing chamber 23, and an induced draft fan 24. The flue gas separator 21 includes an air inlet 211, an air outlet 212, an ash unloading port 213, an inverted conical air cylinder 214, an inner The core pipe 215, the air outlet of the inner core pipe 215 is connected with the air outlet 212, the air inlet of the inner core pipe 215 is lower than the air inlet 211, the air inlet 211 is connected with the regenerative drying drum 1, the a...

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Abstract

The invention relates to the technical field of tail gas treatment, in particular to a pitch hot mix plant recycling tail gas treatment device and method. The pitch hot mix plant recycling tail gas treatment device comprises a recycling drying drum, a primary drying drum and a flue gas transmission device; the flue gas transmission device comprises a flue gas separator, an ash discharging valve, a mixing chamber and an induced draft fan, the flue gas separator comprises an air inlet, an air outlet and an ash discharging port, the air inlet is connected with the recycling drying drum, the air outlet is connected with the induced draft fan, the ash discharging port is connected with the mixing chamber through the ash discharging valve, the induced draft fan blows air from one side of the mixing chamber, and the other side, opposite to the induced draft fan, of the mixing chamber is connected with the primary drying drum. According to the pitch hot mix plant recycling tail gas treatment device and method, the vast majority of dust particles can not enter a draught fan, the draught fan is protected, dust is automatically removed, the labor cost is reduced, the service life of equipment is long, and long-term continuous operation can be achieved.

Description

technical field [0001] The invention relates to the technical field of tail gas treatment, in particular to an asphalt plant mixed heat regeneration tail gas treatment device and method. Background technique [0002] With the rapid development of asphalt pavement construction in my country and a large number of high-grade pavement needs to be rebuilt and repaired, the milling and reuse of old asphalt pavement has been highly valued and widely concerned. Plant-mixed heat regeneration is the most widely used and most mature regeneration technology. A large amount of exhaust gas will be generated during the production process. Generally, the exhaust gas generated during the heating and drying process of recycled materials will be forced into the front end of the original drying drum burner through the induced draft fan, and then Combustion to achieve the purpose of tail gas treatment, thermal regeneration tail gas contains a lot of dust and flammable asphalt smoke, if it is pum...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23G5/16F23G7/06
CPCF23G5/16F23G7/06
Inventor 吕辉祥陈杰河杜金亮黄波来姚亚鹏
Owner FUJIAN SOUTHERN HIGHWAY MECHANICAL
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