CN208671029U - A kind of printing machine gas sampling exhaust system - Google Patents
A kind of printing machine gas sampling exhaust system Download PDFInfo
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- CN208671029U CN208671029U CN201821124362.1U CN201821124362U CN208671029U CN 208671029 U CN208671029 U CN 208671029U CN 201821124362 U CN201821124362 U CN 201821124362U CN 208671029 U CN208671029 U CN 208671029U
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- printing machine
- gas
- collection
- drying chamber
- drying
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model discloses a kind of printing machine gas sampling exhaust systems, drying system including printing machine, the drying chamber of the drying system is equipped with fresh inlet, fresh inlet supplements extraneous fresh air by negative-pressure adsorption mode to reduce the temperature of drying chamber, it further include the gas collection overhead guard above printing machine and the gas collection side cover positioned at printing machine side, gas collection overhead guard sum aggregate gas side cover is respectively communicated with basic collection system by collecting pipe and strengthens collection system.The construction and operation of the system are convenient and easy, economic and practical, are effectively improved the air quality of machine room, realize pollution-free orderly discharge.
Description
Technical field
The utility model relates to the systems that a kind of pair of printing machine exhaust gas is collected.
Background technique
Printing exhaust gas constituents usually have the volatility such as benzene,toluene,xylene, acetone, butanone, lipid, ethers are extremely strong to have
Machine exhaust gas, Gu the two-phase suspended matter uncontrollable discharge formed after material and solvent volatilization or atomization is spilt into the air of surrounding, and it is dirty
Air is contaminated.Therefore, it is necessary to effectively be collected and done purified treatment, to ensure enterprise security operation and personnel health, improvement
Workshop and plant environment reach national requirements for environmental protection.
However, the construction project of the collection system of existing printing exhaust gas is huge, cost is higher；It runs simultaneously, maintenance cost
It is high；Increase the burden of printing enterprise.
Utility model content
In order to solve above-mentioned drawback, technical problem to be solved by the utility model is to provide a kind of for printing machine
Waste gas collecting system, it is convenient to construct, it is economic and practical.In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model
It is a kind of printing machine gas sampling exhaust system, the drying system including printing machine, the drying chamber of the drying system is equipped with new
Wind inlet, fresh inlet supplement extraneous fresh air by negative-pressure adsorption mode to reduce the temperature of drying chamber, further include being located at printing
Gas collection overhead guard above machine and the gas collection side cover positioned at printing machine side, gas collection overhead guard sum aggregate gas side cover are distinguished by collecting pipe
It is connected to basic collection system and strengthens collection system:
Basic collection system: the collecting pipe is connected to the drying chamber of printing machine, the fresh air by the fresh inlet
Import is equipped with activated carbon adsorption filtering layer, and the exhaust outlet of drying chamber leads to catalytic combustion system；
Enter drying chamber after negative-pressure adsorption filtering exhaust gas to utilize printing machine drying system, and with drying system
Operation is expelled to external environment for being sent into after catalytic combustion system is purified after heating by the exhaust gases.
Discharge characteristics during printing technology is that concentration is low, air quantity is big, and concentration range is mainly in 300~800mg/m.It
Between, the exhaust air rate of every printing machine is about in 30000~50000m3/ h or so.Since its ink component is more, thus VOCs discharge at
Divide complexity.Catalytic decomposition has become the effective means of purification high-concentration organic waste gas, and particularly suitable ink prints drying course
The high-concentration organic waste gas of middle discharge.Because its temperature and organic concentration are all higher after exhaust gas drying preheating, to decomposition reaction and
Heat recovery is advantageous, reduces equipment operation and investment cost.
Strengthen collection system: the collecting pipe is connected to leading air hose, dominates air hose and leads to catalytic combustion system, prevailing wind
Pipe is equipped with blower, and machine room is built-in to empty gas monitoring probe, the control mechanism of air monitering probe communication connection blower.In sky
Gas monitoring probe detects that air pollutants are exceeded, and gas sampling is strengthened in blower starting.On the basis of ensuring that surrounding air is qualified
Effectively reduce operating cost.
The beneficial effects of the utility model are that the construction and operation of waste gas collecting system are convenient and easy, economic and practical, have
Effect improves the air quality of machine room, realizes pollution-free orderly discharge.
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing to this
The specific embodiment of utility model is described in detail.Many details are explained in the following description in order to abundant
Understand the utility model.But the utility model can be implemented with being much different from other way described herein, this field
Technical staff can do similar improvement without prejudice to the utility model connotation, therefore the utility model is not by following public affairs
The limitation for the specific embodiment opened.
Detailed description of the invention
Fig. 1 is system principle of compositionality schematic diagram.
Specific embodiment
Referring to attached drawing, reflect that a kind of specific structure of the utility model, the printing machine gas sampling exhaust system include
The drying chamber of the drying system of printing machine 1, the drying system is equipped with seven fresh inlets 3, and fresh inlet 3 passes through negative-pressure adsorption
Mode supplements extraneous fresh air to reduce the temperature of drying chamber.The system further includes the gas collection overhead guard 9 and position positioned at 1 top of printing machine
Seven gas collection side covers 2 in 1 side of printing machine, 9 sum aggregate gas side of gas collection overhead guard cover 2 are distinguished by collecting pipe 4 and collecting pipe 5
It is connected to basic collection system and strengthens collection system:
In basic collection system, the collecting pipe 4 is connected to printing machine 1 by the fresh inlet 3 with collecting pipe 5
Drying chamber, the fresh inlet 3 are equipped with activated carbon adsorption filtering layer, and the exhaust outlet of drying chamber leads to catalytic combustion system 6.It is basic to receive
Collecting system is using entering drying chamber after the negative-pressure adsorption filtering exhaust gas of 1 drying system of printing machine, and with the operation of drying system,
It is purified catalytic combustion system 6 is sent into after heating by the exhaust gases.The catalytic combustion system 6 utilizes the Deep catalytic oxygen of catalyst
Change activity, organic component is reacted in burning point temperature below (150-400 DEG C) with oxygen, generates carbon dioxide and water etc.
Innocuous substance, to achieve the purpose that purifying volatile organic exhaust gas.Catalysis burning catalyst used is with Large ratio surface
Noble metal and metal oxide multi-component material.Such as the catalytic materials of load Pd or rare earth compound, CO in tail gas can be reduced
Content improves the thermal efficiency.The aluminium oxide catalyst of load 0.2%pt can burn most of organic compounds at 500 DEG C,
Deodorization is purified to chemical shift σ=1 or less.
After organic exhaust gas is introduced catalytic combustion system 6, its temperature need to be increased to by electric heater in the incipient stage
The temperature needed is reacted, exhaust gas occurs exothermic oxidation reaction in catalysis catalyst action and generates harmless H2O and CO2, released after decomposition
The heat of releasing enters the organic exhaust gas of catalytic bed by heat exchanger heating, when the concentration of organic exhaust gas reaches certain concentration
When, heat required for heat release and heat exchange reaches balance, is not necessarily to electric heating, disposes high concentration organic waste by Equilibrium
Gas.The above process can pass through PLC system control cabinet full automatic working.
Discharge exhaust gas during printing technology is since its ink component is more, therefore VOCs discharges complicated component.Catalytic decomposition
Method has become the effective means of purification high-concentration organic waste gas, and the high concentration being discharged in particularly suitable ink printing drying course has
Machine exhaust gas.The basic collection system has borrowed the air-supply of printing machine drying system as main long-term work equipment simultaneously
System substantially reduces equipment investment；Basic no newly-increased operating cost；And because of its temperature and organic after exhaust gas drying preheating
Object concentration is all higher, advantageous to decomposition reaction and heat recovery, is further reduced equipment operation and investment cost.
In the reinforcing collection system, the collecting pipe 4 is connected to leading air hose 8 with collecting pipe 5, and it is logical to dominate air hose 8
Toward catalytic combustion system 6, dominates air hose 8 and be equipped with blower 7, machine room is built-in to empty gas monitoring probe, and air monitering probe is logical
The control mechanism of news connection blower 7.Usually strengthen collection system not start, detect air pollutants in air monitering probe
When exceeded, issue signal and blower 7 is started, strengthen gas sampling.Ensure to effectively reduce fortune on the basis of surrounding air is qualified
Row expense.
Above-mentioned implementation is merely to clearly illustrate the technical solution of the utility model, and should not be understood as to this
Utility model makes any restrictions.The utility model has well known a variety of substitutions or deformation in the art, is not taking off
Under the premise of from the utility model in essence meaning, the protection scope of the utility model is each fallen within.
Claims (1)
1. a kind of printing machine gas sampling exhaust system, which is characterized in that the drying system including printing machine, the drying system
Drying chamber be equipped with fresh inlet, fresh inlet supplements extraneous fresh air by negative-pressure adsorption mode to reduce the temperature of drying chamber；
It further include the gas collection overhead guard above printing machine and the gas collection side cover positioned at printing machine side, gas collection overhead guard sum aggregate gas side cover is logical
Collecting pipe is crossed to be respectively communicated with basic collection system and strengthen collection system:
Basic collection system: the collecting pipe is connected to the drying chamber of printing machine, the fresh inlet by the fresh inlet
Equipped with activated carbon adsorption filtering layer, the exhaust outlet of drying chamber leads to catalytic combustion system；
Strengthen collection system: the collecting pipe is connected to leading air hose, dominates air hose and leads to catalytic combustion system, leading air hose is set
There is blower, machine room is built-in to empty gas monitoring probe, the control mechanism of air monitering probe communication connection blower.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821124362.1U CN208671029U (en) | 2018-07-16 | 2018-07-16 | A kind of printing machine gas sampling exhaust system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821124362.1U CN208671029U (en) | 2018-07-16 | 2018-07-16 | A kind of printing machine gas sampling exhaust system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208671029U true CN208671029U (en) | 2019-03-29 |
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ID=65828706
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| Application Number | Title | Priority Date | Filing Date |
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| CN201821124362.1U Active CN208671029U (en) | 2018-07-16 | 2018-07-16 | A kind of printing machine gas sampling exhaust system |
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| CN (1) | CN208671029U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662598A (en) * | 2018-07-16 | 2018-10-16 | 浏阳市源友印务包装有限公司 | A kind of printing machine gas sampling exhaust system |
-
2018
- 2018-07-16 CN CN201821124362.1U patent/CN208671029U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108662598A (en) * | 2018-07-16 | 2018-10-16 | 浏阳市源友印务包装有限公司 | A kind of printing machine gas sampling exhaust system |
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