CN107899389A - The energy saving hybrid processing system of Industrial Stoves VOC exhaust gas - Google Patents

Abstract

The invention discloses an energy-saving mixed treatment system for industrial kiln VOC waste gas, which includes a waste gas collection box, a concentration collection box, and at least two switchable adsorption and desorption devices arranged between the waste gas collection box and the concentration collection box. The switchable adsorption The inlet end of the desorption device communicates with the exhaust gas collection box, and the outlet end of the switchable adsorption-desorption device communicates with the concentration collection box; the concentration collection box is connected with a catalytic treatment device and a heat storage combustion device; The adsorption and desorption device is provided with a purification discharge port, and the purification discharge port is connected with the kiln through a self-circulation branch pipe. The beneficial technical effects of the present invention are as follows: effectively collect and mix multiple industrial kiln waste gases containing organic waste gas, and then perform multi-stage treatment and reuse of waste gas, so that the environment is no longer polluted; this can reduce the amount of gas treatment, Reduce fuel consumption, save costs, and be more energy-saving and environmentally friendly.

Description

Industrial kiln VOC waste gas energy-saving mixed treatment system

【Technical field】

The invention relates to a waste gas treatment device, in particular to an energy-saving mixed treatment system for VOC waste gas from industrial kilns.

【Background technique】

The painting process is widely used in machinery, electrical equipment, home appliances, automobiles, ships, furniture and other industries. Raw materials for spray paint—paints are composed of non-volatile and volatile components. The non-volatile components include film-forming substances and auxiliary film-forming substances, and the volatile components refer to solvents and thinners (mainly xylene). The organic gas in the paint exhaust gas comes from the volatilization of solvents and thinners. The organic solvent will not adhere to the surface of the painted object with the paint, and will be completely released during the painting and drying process to form organic waste gas. Generally, the amount of xylene waste gas volatilized in the painting process accounts for about 30% of the thinner consumption, and another 70% volatilizes in the drying process. The two-phase suspension formed after the atomization of paint and solvent in the spray painting operation escapes into the surrounding air, which will seriously pollute the air.

At present, the industry mainly adopts condensation method, adsorption-vacuum desorption post-absorption method, combustion method, membrane separation and other treatment methods. The existing organic waste gas treatment methods are single, either the treatment effect is poor, or most of the energy is consumed, which increases the treatment cost. ; In addition, the current exhaust gas treatment equipment is fixed and supporting equipment, which is not flexible to use and inconvenient to operate.

【Content of invention】

The purpose of the present invention is to address the deficiencies in the above-mentioned prior art, to provide a kind of industrial kiln VOC that can completely eliminate the volatile organic compound (VOC) gas emission pollution discharged from spraying workshops such as furniture factories, is energy-saving, efficient, more environmentally friendly, and flexible to use. Exhaust gas energy-saving hybrid treatment system.

In order to achieve the above object, the present invention is achieved in this way: the industrial kiln VOC waste gas energy-saving mixed treatment system includes a waste gas collection box, a concentration collection box, and at least two switchable adsorption-desorption devices arranged between the waste gas collection box and the concentration collection box device, the inlet end of the switchable adsorption-desorption device communicates with the waste gas collection box, a valve is set on the pipeline in it, the outlet end of the switchable adsorption-desorption device communicates with the concentrated collection box, and the pipeline is set valve for easy control. The valve is preferably a solenoid valve; the exhaust gas collection box is provided with an exhaust gas introduction interface for connecting with the exhaust gas source pipeline; processing device for processing; the waste gas collection box is connected to the waste gas discharge ports of at least two kilns; the concentration collection box is connected to the catalytic treatment device and the heat storage combustion device; the switchable adsorption and desorption device is provided with a purification discharge port, The purification discharge port is connected to the kiln through a self-circulation branch pipe, and is used to reuse the treated waste gas to form a self-circulation loop.

The regenerative combustion device includes a combustion chamber, a burner and at least two regenerative heat exchangers; the burner is installed in the combustion chamber and connected to a fuel delivery pipe for delivering fuel; the two regenerative Type heat exchangers are respectively installed on the side walls of the combustion chamber, and one end of the regenerative heat exchanger is provided with an air inlet and an air exhaust port, the air inlet is connected to the air intake pipe, and the air intake pipe is connected to the exhaust gas discharge pipe The air outlet is connected to the discharge pipe; the other end of the regenerative heat exchanger communicates with the inner cavity of the combustion chamber.

The flue gas discharge pipe of the catalytic treatment device is connected with the air inlet of the regenerative heat exchanger through a pipe.

The switchable adsorption-desorption device includes a first adsorption module and a second adsorption module, the first adsorption module and the second adsorption module are respectively provided with an air inlet, a purification outlet, a desorption inlet and a concentration outlet, and the inlet The connection between the gas port and the exhaust gas collection box, the purification discharge port is directly connected to the discharge outlet, and the purified gas that meets the emission standard is discharged through the discharge outlet; the concentration discharge port of the first adsorption module and the second adsorption module By connecting with the concentration collection box; the desorption inlets of the first adsorption module and the second adsorption module are connected to the desorption inlet pipe, and a valve and a desorption fan are installed on the desorption inlet pipe, and are connected with the waste gas collection box and the discharge outlet , the desorbed concentrated waste gas is recycled and collected in the concentrated collection box.

For the convenience of desorption, a branch pipe is provided to connect with the desorption inlets of the first adsorption module and the second adsorption module respectively, and the branch pipe can be connected with the treated discharge pipe, and the treated exhaust gas part is used for desorption The gas mixing desorbs the first adsorption module and the second adsorption module. The branch pipe is connected to the desorption pipes of the first adsorption module and the second adsorption module through a multi-way valve, and desorption is performed by mixing part of the thoroughly treated flue gas with air, which can reduce exhaust gas emissions, and recover and utilize waste heat, saving energy. energy. The volume ratio of air to flue gas after catalytic treatment is 2:1.5-2, preferably, the volume ratio of air to flue gas is 1:1.

Another branch pipe is set to connect with the air inlets on the first adsorption module and the second adsorption module respectively, and is used to discharge the final waste gas after being adsorbed by the first adsorption module and the second adsorption module, so as to ensure the treatment effect.

The desorption fan is connected to the outlet pipe of the exhaust gas treatment device through a desorption pipe and a multi-way valve, and an explosion-proof valve is arranged between the desorption fan and the concentration outlet. The multi-way valve may be a four-way valve.

A third adsorption module is arranged at the air inlets of the first adsorption module and the second adsorption module for pretreatment of exhaust gas. A movable adsorption medium is arranged in the third adsorption module, and the movable adsorption medium is installed on the rotating shaft, and the third adsorption module is provided with a flue gas inlet, a purification discharge port, a desorption inlet and a concentration discharge port, and the purification discharge port It is connected with the air inlets of the first adsorption module and the second adsorption module, and the concentration discharge port is respectively connected with the waste gas collection box through the pipeline and the desorption fan.

The third adsorption module can be a zeolite runner, and the zeolite runner can further increase the concentration ratio, improve the removal efficiency of VOCs and reduce the treatment cost by adjusting parameters such as desorption temperature and desorption gas flow rate, so as to reduce the concentration after concentration. Dispose of equipment, reduce energy consumption.

The first adsorption module and the second adsorption module can be activated carbon filters, or honeycomb activated carbon.

Compared with the prior art, the present invention has the following advantages and beneficial technical effects: the waste gas from multiple industrial kilns containing organic waste gas is effectively collected and mixed evenly, and then multi-stage treatment and waste gas are reused, without causing any harm to the environment. Pollution; this can reduce the amount of gas treatment, reduce fuel consumption, save costs, and be more energy-saving and environmentally friendly.

【Description of drawings】

Fig. 1 is the system structure block diagram 1 of the industrial kiln VOC waste gas energy-saving mixed treatment system of the present invention;

Fig. 2 is a system structure block diagram 2 of an energy-saving mixed treatment system for industrial kiln VOC waste gas of the present invention.

【Detailed ways】

The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

The industrial kiln VOC waste gas energy-saving mixed treatment system, as shown in Figure 1, includes a waste gas collection box 12, a concentration collection box 13, and at least two switchable adsorption and desorption devices 16 arranged between the waste gas collection box 11 and the concentration collection box 13 , the inlet port of the switchable adsorption-desorption device 16 communicates with the waste gas collection box 12, and a valve 17 is arranged on the pipeline, and the outlet port of the switchable adsorption-desorption device 16 communicates with the concentrated collection box 13, and Wherein a valve 17 is set on the pipeline for easy control. The valve 17 is preferably a solenoid valve; the exhaust gas collection box is provided with an exhaust gas introduction interface 14 for connecting with the exhaust gas source pipeline, and the concentrated collection box is provided with an exhaust gas treatment interface 15 for connecting with the exhaust gas treatment device, and the concentrated exhaust gas The waste gas is transported to the waste gas treatment device for treatment; the waste gas collection box 12 is connected with the waste gas discharge ports of at least two kilns. The switchable adsorption-desorption device 16 is provided with a purification outlet, and the purification outlet is connected to the kiln 11 through a self-circulation branch pipe 18 for reusing the treated waste gas to form a self-circulation loop. The waste gas collection box 12, the concentration collection box 13, and at least two switchable adsorption and desorption devices 16 arranged between the waste gas collection box 11 and the concentration collection box 13 are arranged on a mobile platform, which is convenient for moving and flexible to use.

The concentration collection box 13 is connected to a catalytic treatment device and a regenerative combustion device, wherein the ratio of the exhaust gas treatment capacity of the catalytic treatment device to the regenerative combustion device is in the range of 1:1-3. Preferably, the ratio range of the exhaust gas treatment capacity of the catalytic treatment device and the regenerative combustion device is 1:2.

The catalytic treatment device can be a photocatalytic purifier, and can directly purchase a mature product sold in the market, which mainly utilizes the photocatalyst titanium dioxide (TiO 2 ) to absorb the light energy of external radiation and convert it directly into chemical energy. Some organic substances that are difficult to be oxidized by ozone, such as chloroform, carbon tetrachloride, and hexachlorobenzene, can be effectively decomposed, so it has special significance for organic substances that are difficult to degrade. The effective oxidant for photocatalysis is hydroxyl radicals (HO ), hydroxyl radicals (HO) are more oxidative than common ozone, hydrogen peroxide, potassium permanganate, hypochlorous acid, etc. Activated carbon filter media or honeycomb activated carbon filter media are arranged in the first adsorption module and the second adsorption module.

The regenerative combustion device includes a combustion chamber, a burner and at least two regenerative heat exchangers. The burner is installed in the combustion chamber and connected with a fuel delivery pipe for delivering fuel. Natural gas is generally preferred as fuel due to the low fuel requirements. The two regenerative heat exchangers are respectively installed on the side wall of the combustion chamber, and one end of the regenerative heat exchanger is provided with an air inlet and an air exhaust port, the air inlet is connected with the air intake pipe, and the The air intake pipe is connected with the exhaust gas discharge pipe, and the air outlet is connected with the discharge pipe; the other end of the regenerative heat exchanger communicates with the inner cavity of the combustion chamber. The waste gas discharge pipe is connected to the air inlets of the two heat storage heat exchangers, the air outlets of the two heat storage heat exchangers are connected to the discharge pipe, the discharge pipe is connected to the chimney, and the treated Exhaust emissions. When working, the gas containing volatile organic compounds in the exhaust gas discharge pipe first enters the combustion chamber from one of the regenerative heat exchangers, mixes and burns with the fuel ejected from the burner, and heats up to 780°C to 840°C to make the VOC gas It is fully decomposed, and then enters from the inlet of another regenerative heat exchanger, passes through the heat storage medium, is output from the air outlet and is discharged into the chimney through the discharge pipe, and the high-temperature flue gas passes through the heat storage in the regenerative heat exchanger Heat the heat storage medium to 700°C-800°C. After setting the time, switch through the valve control, close the intake valve of the current regenerative heat exchanger, open the exhaust valve, open the intake valve of the second regenerative heat exchanger, and close its exhaust valve; including The waste gas of VOC gas is heated to 650°C -750°C by the heat storage medium in the second regenerative heat exchanger, and then enters the first regenerative heat exchanger after burning in the combustion chamber, and then passes through the first heat storage The exhaust outlet output of the thermal heat exchanger is discharged into the chimney through the discharge pipe, and at the same time heats the heat storage medium in the first regenerative heat exchanger. In the switching of combustion and emission of organic waste, the exhaust waste heat after combustion is fully utilized to preheat the organic waste gas to be treated, which can effectively save energy and improve the treatment effect.

The heat exchange and storage type heat exchanger includes a shell and a heat storage medium arranged in the shell, and the heat storage medium absorbs heat of high-temperature gas to heat incoming low-temperature gas. The heat storage medium can be a ceramic ball, which has a fire-resistant function, high heat capacity, and fast heat transfer. It can store the combustion heat generated by the combustion of organic matter and natural gas in the ceramic heat storage body, and release heat into the low-temperature intake airflow. Significantly reduce the energy required to burn VOCs; and the heat storage body can also buffer the temperature fluctuations when VOCs are burned. If the combustion temperature is 850°C, the allowable temperature of the combustion chamber can change to 1050°C for a short time, so that the system can maintain safe and stable operation. And when the system burns VOCs under high temperature conditions, it is suitable for lower VOCs inlet concentration and shorter residence time, enabling the combustion chamber to achieve flameless combustion, which can greatly reduce fuel costs and NOx production. In order to improve the heat exchange effect of the heat exchange and storage heat exchanger, stainless steel or cast iron balls can also be used as the heat storage medium.

The combustion chamber of the regenerative combustion device burns directly into carbon dioxide and water vapor. When the concentration of organic waste gas reaches more than 500PPm, the organic waste gas can maintain spontaneous combustion in the combustion chamber without external heating. The exhaust gas after combustion passes through the heat exchanger to heat the air, and the hot air is sent to the adsorption bed for the regeneration of activated carbon. In this way, the heat energy required for combustion and adsorption can be satisfied, and the purpose of energy saving can be achieved. After regeneration, it can enter the next adsorption; during desorption, the purification operation can be carried out with another adsorption bed, which is suitable for both continuous operation and discontinuous operation.

The flue gas discharge pipe of the catalytic treatment device is connected with the air inlet of the regenerative heat exchanger through a pipe.

As shown in Figure 2, the cyclone mixing cylinder 5 is set to be connected to the waste gas collection box 11, and the cyclone mixing cylinder 5 is provided with several tangential air inlets for introducing multiple strands of industrial kiln organic waste gas. The mixed gas outlet is connected with the exhaust gas collection box 12. The cyclone mixing cylinder 5 includes a cylinder body, the side wall of the cylinder body is provided with several tangential air inlets, and the bottom of the cylinder body is provided with a mixed gas outlet.

The switchable adsorption-desorption device includes a first adsorption module and a second adsorption module, the first adsorption module and the second adsorption module are respectively provided with an air inlet, a purification outlet, a desorption inlet and a concentration outlet, and the inlet The gas port is connected to the waste gas collection box 12, and the purification discharge port is directly connected to the discharge outlet, and the gas that meets the discharge standard after purification is discharged through the discharge outlet; the concentrated discharge of the first adsorption module and the second adsorption module The outlet is connected to the concentration collection box 13; the desorption inlet of the first adsorption module and the second adsorption module is connected to the desorption inlet pipe, and a valve and a desorption fan are installed on the desorption inlet pipe, and are connected with the waste gas collection box 12 and The discharge outlet is connected, and the desorbed concentrated exhaust gas is recycled and collected in the concentrated collection box 13 .

For the convenience of desorption, a branch pipe is provided to connect with the desorption inlets of the first adsorption module and the second adsorption module respectively, and the branch pipe can be connected with the treated discharge pipe, and the treated exhaust gas part is used for desorption The gas mixing desorbs the first adsorption module and the second adsorption module. The branch pipe is connected to the desorption pipes of the first adsorption module and the second adsorption module through a multi-way valve, and desorption is performed by mixing part of the thoroughly treated flue gas with air, which can reduce exhaust gas emissions, and recover and utilize waste heat, saving energy. energy. The volume ratio of air to flue gas after catalytic treatment is 2:1.5-2, preferably, the volume ratio of air to flue gas is 1:1. Another branch pipe is set to connect with the air inlets on the first adsorption module and the second adsorption module respectively, and is used to discharge the final waste gas after being adsorbed by the first adsorption module and the second adsorption module, so as to ensure the treatment effect.

The desorption fan is connected to the outlet pipe of the exhaust gas treatment device through a desorption pipe and a multi-way valve, and an explosion-proof valve is arranged between the desorption fan and the concentration outlet. The multi-way valve may be a four-way valve.

In order to improve the purification treatment effect, a third adsorption module is arranged at the air inlets of the first adsorption module and the second adsorption module for pretreatment of exhaust gas. A movable adsorption medium is arranged in the third adsorption module, and the movable adsorption medium is installed on the rotating shaft, and the third adsorption module is provided with a flue gas inlet, a purification discharge port, a desorption inlet and a concentration discharge port, and the purification discharge port It is connected with the air inlets of the first adsorption module and the second adsorption module, and the concentration discharge port is respectively connected with the waste gas collection box 12 through a pipeline and a desorption fan. The smoke containing flue gas enters from the flue gas inlet, passes through the adsorption surface of the active adsorption medium, and then is discharged through the purification discharge port, which can suck and remove 60-70% of the VOC in the flue gas; when desorption is required, the desorption gas is drawn from the desorption inlet Entering, the active adsorption medium rotates around the shaft, so that the desorption surface of the third adsorption module faces the desorption inlet, and the desorption gas will be eluted from the high-concentration VOC adsorbed on the active adsorption medium and then enter the waste gas collection box 12 from the concentrated discharge port. The third adsorption module is of rotary wheel type, has a simple structure, is convenient to use, and can work continuously.

The third adsorption module can be a zeolite runner, and the zeolite runner can further increase the concentration ratio, improve the removal efficiency of VOCs and reduce the treatment cost by adjusting parameters such as desorption temperature and desorption gas flow rate, so as to reduce the concentration after concentration. Dispose of equipment, reduce energy consumption. A third adsorption module is arranged in the primary enrichment part, and the third adsorption module is filled with zeolite. The concentration of VOCs in the waste gas can be increased through the primary enrichment unit, which can reduce the energy consumption of the subsequent waste gas treatment device.

If the exhaust gas treatment device is an over-combustion decomposing furnace, the fuel consumption of the over-combustion decomposing furnace can be reduced. The combustion temperature in the over-combustion decomposing furnace is about 750-890°C, and the VOCs are burned and burned by high temperature to generate harmless CO2 and H2O. It can make the VOCs intake concentration reach the self-sustaining concentration of the regenerative combustion decomposition furnace, without adding auxiliary fuel, and greatly reduce energy consumption; it is easy to realize automatic control and has high safety; it allows the concentration of waste gas to be treated to fluctuate greatly.

When the first adsorption module and the second adsorption module are working, they are controlled by valves. The first adsorption module performs adsorption and filtration, while the second adsorption module performs desorption, and then switches to perform desorption in the first adsorption module. Adsorption filtration is carried out in the second adsorption module. After being adsorbed and filtered, the flue gas to be treated can meet the discharge standard, and is directly discharged into the discharge pipe through the purification discharge port. The desorbed eluate gases from the first and second adsorption modules contain higher concentrations of volatile organic compounds (VOCs). In this way, the gas treatment amount can be reduced, the fuel consumption can be reduced, the cost can be saved, and it is more energy-saving and environmentally friendly.

The first adsorption module and the second adsorption module work alternately and continuously with dual gas paths. First, use one of the adsorption modules to adsorb the organic waste gas, stop the adsorption when it is almost saturated, and then use the desorption gas to desorb the organic matter from the activated carbon to regenerate the activated carbon; the desorbed organic matter has been concentrated (the concentration is increased by several tens of times) and sent to the subsequent processing device for processing.

Wherein, the first adsorption module and the second adsorption module may be activated carbon filters, or honeycomb activated carbon.

The switchable adsorption and desorption device can be installed in a mobile adsorption and desorption device, and the mobile adsorption and desorption device includes a mobile platform, a waste gas collection box 12 installed on the mobile platform and a concentrated collection box 13 in the waste gas collection box. 11 and the concentration collection box 13, a switchable adsorption-desorption device is installed, the inlet port of the switchable adsorption-desorption device communicates with the waste gas collection box, and the concentrated outlet port of the switchable adsorption-desorption device communicates with the concentrated collection box 13 connected. The exhaust gas collection box is provided with an exhaust gas introduction interface 14 for connecting with the exhaust gas source pipeline, and the concentrated collection box 13 is provided with an exhaust gas treatment interface 15 for connecting with the exhaust gas treatment device and transporting the concentrated exhaust gas to the exhaust gas treatment device for processing . The mobile platform can be a vehicle-mounted platform provided with wheels, which is flexible in movement and easy to manufacture.

The preferred specific embodiments of the present invention have been described in detail above, and it should be understood that those skilled in the art can make many modifications and changes according to the concept of the present invention without creative work. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning or limited experiments on the basis of the prior art should be within the scope of protection defined by the claims.

Claims (10)

1. the energy saving hybrid processing system of Industrial Stoves VOC exhaust gas, it is characterised in that including waste gas collection box, concentration collecting box, if Put minimum two suitching types adsorption-desorption device between waste gas collection box and concentration collecting box, the suitching type adsorption-desorption The arrival end of device is connected with the waste gas collection box, and the port of export of the suitching type adsorption-desorption device is collected with the concentration Case connects, and the waste gas collection box sets exhaust gas introducting interface, and for being connected with exhaust gas source pipeline, the concentration collecting box is set Exhaust-gas treatment interface, for being connected with emission-control equipment, is transported to emission-control equipment by the exhaust gas of concentration and is handled；Institute The Waste gas outlet that waste gas collection box is stated with minimum two strands of kilns is connected；The concentration collecting box connection device for catalytic treatment and storage Hot burner；The suitching type adsorption-desorption device is provided with purification floss hole, and the purification floss hole passes through self-loopa point Branch pipe is connected with kiln.

2. the energy saving hybrid processing system of Industrial Stoves VOC exhaust gas as claimed in claim 1, it is characterised in that the accumulation of heat combustion Burning device includes combustion chamber, burner and at least two heat regenerators；The burner is installed in combustion chamber, and with In the fuel -supply pipe connection of conveying fuel；Two heat regenerators are respectively arranged on the sidewall of combustion chamber, institute The one end for stating heat regenerator sets air inlet and exhaust outlet, the air inlet to be connected with air inlet pipe, and the air inlet pipe is with giving up Gas discharge pipe connects, and the exhaust outlet is connected with delivery pipe；The other end of the heat regenerator is interior with the combustion chamber Chamber communicates.

3. the energy saving hybrid processing system of Industrial Stoves VOC exhaust gas as claimed in claim 2, it is characterised in that at the catalysis The smoke discharge pipe of reason device is connected by pipeline with the air inlet of the heat regenerator.

4. the energy saving hybrid processing system of Industrial Stoves VOC exhaust gas as claimed in claim 1, it is characterised in that the suitching type Adsorption-desorption device includes the first adsorption module and the second adsorption module, divides on first adsorption module and the second adsorption module She Zhi not air inlet, purification floss hole, solution suction side and the company for concentrating outlet, the air inlet and the waste gas collection box Connect, the purification floss hole is directly connected with exhaust outlet, and the gas that discharge standard is met after purification is arranged by exhaust outlet Put；The concentration outlet of first adsorption module and the second adsorption module with concentration collecting box by being connected；Described first inhales Attached module connects desorption air inlet pipe with the solution suction side of the second adsorption module, and valve and desorption are installed in the desorption air inlet pipe Wind turbine, and be connected with the waste gas collection box and exhaust outlet, the concentration exhaust gas circulating collection of desorption is collected in the concentration In case.

5. the energy saving hybrid processing system of Industrial Stoves VOC exhaust gas as claimed in claim 4 a, it is characterised in that branch is set Solution suction side of the pipe respectively with first adsorption module and the second adsorption module is connected, the branched pipe and the discharge after processing Pipe connects, and the discharge gas part after processing is used to mix to the first adsorption module and the second adsorption module solution with desorption gas Inhale；The branched pipe is connected by multiple-way valve with the desorption tube of the first adsorption module and the second adsorption module, passes through reference portion Processed thoroughly flue gas is mixed with air carrys out desorption.

6. the energy saving hybrid processing system of Industrial Stoves VOC exhaust gas as claimed in claim 5, it is characterised in that set another point Branch pipe is connected with the air inlet on the first adsorption module and the second adsorption module respectively, passes through first for the exhaust-gas treatment by after Discharged after adsorption module and the absorption of the second adsorption module, ensure treatment effect.

7. the energy saving hybrid processing system of Industrial Stoves VOC exhaust gas as claimed in claim 6, it is characterised in that the solution air draught Machine is connected by the outlet of desorption tube and multiple-way valve and emission-control equipment, between the desorption wind turbine and concentration outlet Explosion-proof valve is set.

8. the energy saving hybrid processing system of Industrial Stoves VOC exhaust gas as claimed in claim 7, it is characterised in that described first The air inlet of adsorption module and the second adsorption module sets the 3rd adsorption module, for being pre-processed to exhaust gas；3rd absorption Setting activity adsorbing medium in module, the activity adsorbing medium is installed in shaft, and is set on the 3rd adsorption module There are gas inlet, purification floss hole, solution suction side and concentration outlet, the purification floss hole and the first adsorption module and second The air inlet connection of adsorption module, concentration floss hole are conciliate suction ventilator by pipeline and are connected respectively with waste gas collection box.

9. the energy saving hybrid processing system of Industrial Stoves VOC exhaust gas as claimed in claim 8, it is characterised in that the described 3rd inhales Attached module is zeolite runner.

10. the energy saving hybrid processing system of Industrial Stoves VOC exhaust gas as claimed in claim 8, it is characterised in that described first inhales Attached module and the second adsorption module are active carbon filter or cellular activated carbon.