Apparatus for recovering ethanol in organic exhaust gas from tipping paper printing

A technology for recycling water and waste gas, which is applied in steam condensation, dispersed particle filtration, and dispersed particle separation, etc. It can solve the problems of waste gas emission and environmental pollution, achieve high recovery efficiency, improve pollution, and shorten desorption time.

Active Publication Date: 2013-10-16
YUNNAN YUXI TIPPING PAPER FACTORY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies of the above-mentioned background technology, the present invention provides a device for recovering ethanol in printing waste gas with high recovery efficiency, simple operation and low energy consumption. Using the device to recycle the waste gas produced by tipping paper printing can effectively Recycling the organic solvent ethanol in the exhaust gas reduces the production cost and solves the problem of environmental pollution caused by exhaust emissions

Method used

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  • Apparatus for recovering ethanol in organic exhaust gas from tipping paper printing
  • Apparatus for recovering ethanol in organic exhaust gas from tipping paper printing
  • Apparatus for recovering ethanol in organic exhaust gas from tipping paper printing

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Embodiment 1: A device for recovering ethanol in waste gas from tipping paper printing, including a filter 2 connected in sequence, a fan 3, a secondary surface cooler 4, an adsorber assembly 5, a desorber condenser 8, and gas-liquid separation Device 10, liquid storage tank 11 and rectifying tower 12. The exhaust gas collection room 1 installed on the printing press is connected to the air inlet of the filter 2 through a pipeline, and a flow regulating valve is installed on the outlet pipe of the filter 2, and the two ends of the filter 2 are funnel-shaped front wind cover 15 and Rear wind cover 16 is connected by the rectangular two-way box body that is positioned at the middle, and the primary sieve 17 of 80 mesh screens is installed on the side of the air inlet in the box; Stage sieve 18; There is a certain distance in the middle of the two-stage filter sieve, and a sealed door 20 is provided on the side wall of the rectangular box corresponding to the distance.

...

Embodiment 2

[0030]Embodiment 2: A device for recovering ethanol in tipping paper printing waste gas. The difference from Embodiment 1 is that the horizontal adsorber with the following structure is adopted: the horizontal adsorber 6 includes an adsorption tank body 21 that is cylindrical as a whole , the adsorption core 22 that is made up of activated carbon granules in the middle and lower part of the adsorption tank body 21, the steam pipe 25 above the adsorption tank body 22, the waste gas inlet pipe 23 positioned at one end of the adsorption tank body 21, and the exhaust gas inlet pipe 23 positioned at the adsorption tank body 21 top Exhaust pipe 26, solution collecting pipe 27 of the bottom, gas diffuser is installed on the described waste gas inlet pipe 23, and gas high-speed nozzle is installed on the gas diffuser, described steam pipe 25 is U-shaped and is arranged on it. A plurality of steam injection holes 28; the end cover 29 at one end of the adsorption tank body 21 is movably ...

Embodiment 3

[0031] Embodiment 3: A device for recovering ethanol in waste gas from tipping paper printing. The difference from Embodiment 2 is that a primary condensation is provided at one end of the secondary screen 18 in the filter 2 box body and close to the rear windshield 16. Device 19.

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Abstract

The invention discloses an apparatus for recovering ethanol in organic exhaust gas from tipping paper printing. In production technology of printing industry, usage of a great amount of organic solvent causes indoor air pollution. The apparatus of the invention comprises a filter (2), a blower fan (3), a secondary surface cooler (4), an absorber assembly (5), a desorption device condenser (8), a gas-liquid separation device (10), a liquid storage tank (11) and a rectifying tower (12). An 80-mesh primary sieve (17) is arranged on one side of an air intake of the filter (2) casing; a 120-mesh secondary sieve (18) is arranged on one side of an air outlet; and the absorber assembly (5) comprises three horizontal absorbers (6) in parallel connection. If employed, the apparatus for treating printing exhaust gas of the invention not only improves pollution caused by direct discharge but also effectively recovers ethanol in the printing exhaust gas, at low cost and low energy consumption.

Description

technical field [0001] The invention relates to cleaning of organic waste gas, in particular to a device for cleaning and recovering organic waste gas. Background technique [0002] In the production process of tipping paper printing, a large amount of organic solvents are used. These organic solvents will all volatilize during the drying process, causing indoor air pollution and affecting the health of production workers. After installing exhaust fans indoors, Although it can eliminate indoor exhaust gas, the exhaust gas mixed with air will cause serious pollution to the air, and these organic solvents cannot be reused. Printing companies have to invest a lot of money to purchase these organic solvents, which has brought heavy burdens to the company. Economic burden, but also caused a huge waste of resources. [0003] At present, there are generally absorption methods, condensation methods, and adsorption methods for the recovery and treatment of organic solvents. The esse...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/04B01D5/00B01D46/12
Inventor 何金星代虽愚方建明代金正何金春任金柱郭建宏
Owner YUNNAN YUXI TIPPING PAPER FACTORY
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