Unlock instant, AI-driven research and patent intelligence for your innovation.

Asphalt concrete rotary kiln flue gas white smoke elimination system

A technology of asphalt concrete and rotary kiln, which is applied in the field of flue gas purification, and can solve the problems of unproven whitening effect, limited flue gas condensation and limited heating range.

Pending Publication Date: 2019-08-09
浙江菲达环保科技股份有限公司
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the invention authorization number CN206940794U, the patent name is a patent for the flue outlet structure of asphalt equipment for removing white smoke, adding a condensation flue and an exhaust flue to eliminate white smoke, and its flue gas condensation and heating range are very limited, eliminating white smoke The effect is yet to be demonstrated

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Asphalt concrete rotary kiln flue gas white smoke elimination system
  • Asphalt concrete rotary kiln flue gas white smoke elimination system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] refer to figure 1 An asphalt concrete rotary kiln flue gas whitening system of the present invention comprises a dust removal system 1, an induced draft fan 2, a flue gas cooling and condensing system 31, a cooler 311, a condenser 312, a first demister 313, and a water collecting system connected in sequence. Bucket 314, mechanical ventilation cooling tower 4, cooling water pump 51, heat transfer oil pump 52, heat transfer oil heater 6, asphalt heating system 7, heat transfer oil boiler 8 and chimney 9.

[0025] The working principle of the present invention is as follows: Taking a unit with an annual output of 400,000 tons as an example, after the flue gas discharged from the asphalt concrete rotary kiln is treated by the dust removal system 1, the temperature of the flue gas is about 100°C, and the flue gas is introduced by the induced draft fan 2 The cooling condensing system 3 exchanges heat with the cooling water from the mechanical ventilation cooling tower 4, coo...

Embodiment 2

[0027] refer to figure 1 In this embodiment, on the basis of Embodiment 1, the mechanical ventilation cooling tower 4 is replaced by a heat pump system or a floor heating system to further recover the low-temperature waste heat of the circulating cooling water in the flue gas cooling and condensing system 31, which not only reduces the energy consumption of the system , but also to ensure the heating demand of the plant.

Embodiment 3

[0029] refer to figure 2 , this embodiment is based on the embodiment 1, and the spray cooling tower 32 is used instead of the flue gas cooling and condensing system 31 to realize the cooling of the flue gas and the condensation and water collection. The spray cooling tower 32 includes a demister 321 , a spray layer 322 , a packing layer 323 , and a sump 324 arranged sequentially from top to bottom. The flue gas contacts the spray water from bottom to top to exchange heat, and enters the flue through the outlet at the top of the demister 321. The spray water and condensed water mix and collect in the sump 324, and return to the mechanical ventilation cooling tower 4 through the circulating water pipeline. . This method reduces the area occupied by the equipment, but has the same whitening effect.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an asphalt concrete rotary kiln flue gas white smoke elimination system. The system comprises: a dedusting system, an induced draft fan, a flue gas cooling device, a cooling water heat exchange device, a heat conducting oil heater, an asphalt heating system, a heat conducting oil boiler and a chimney. The dedusting system, the induced draft fan, the flue gas cooling device,the heat conducting oil heater and the chimney are arranged along the flue gas treatment direction in order, the flue gas cooling device and the cooling water heat exchange device are connected to form cold circulation, the flue gas cooling device is a flue gas cooling condensation system, which includes a cooler, a condenser and a first demister that are arranged along the flue gas treatment direction in order, and also includes a water collecting hopper disposed at the bottom, the heat conducting oil heater is connected to the asphalt heating system and the heat conducting oil boiler respectively to form thermal circulation. The flue gas exhausted by an asphalt concrete rotary kiln is sent to the flue gas cooling condensation system and a reheater for condensation and reheating, then thetreated glue gas is emitted to the atmosphere through the chimney, thus realizing the white smoke elimination purpose.

Description

[0001] 【Technical field】 [0002] The invention relates to the technical field of flue gas purification, in particular to an asphalt concrete rotary kiln flue gas whitening system. [0003] 【Background technique】 [0004] In the building material industry, the flue gas produced by the asphalt concrete rotary kiln not only causes serious waste of heat, but also produces a large amount of white smoke, causing heat pollution and visual pollution, and affecting the corporate image. In recent years, the pollutant discharge requirements of the building materials industry have become more and more stringent, but there is a certain degree of lag in its whitening technology and requirements. [0005] At present, for the white smoke discharged from the asphalt concrete rotary kiln, some common whitening process equipment is not suitable. For example, the invention authorization number CN206940794U, the patent name is a patent for the flue outlet structure of asphalt equipment for removi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B01D53/00B01D53/26F27D17/00
CPCB01D53/002B01D53/265B01D53/005F27D17/004B01D2257/80B01D2258/0283Y02P10/25
Inventor 周林海陈孙伟王淦郭峰章成伟吴神栋
Owner 浙江菲达环保科技股份有限公司