CN207708822U - A kind of device being recycled to VOC gas - Google Patents

Abstract

The utility model discloses a kind of devices being recycled to VOC gas,It include the processing unit being connected with paint spray booth,It is provided with admission line and discharge duct on the air-introduced machine of processing unit,Admission line is connected with paint spray booth,Discharge duct is connected with overflow tower side wall,It is provided with run-off at the top of Overflow Tower,It is connected with outlet pipe at the top of run-off,Buffer case is internally provided with pressure gauge and VOC electronic detectors,Valve one is provided on downtake pipe,Valve two is provided on outlet pipe,Valve three is provided on circulating line,Run-off bottom is provided with drain pipe,Liquid reserve tank bottom is connected by pipeline with Overflow Tower,Liquid reserve tank is internally provided with ultrasonic probe,Liquid reserve tank is connected by inlet tube with run-off,The utility model is of low cost,It is simple in structure,The device of coating cloud and organic exhaust gas can be handled simultaneously,VOC gas can effectively be removed.

Description

A kind of device being recycled to VOC gas

Technical field

The utility model is related to technical field of waste gas treatment, and in particular to a kind of device being recycled to VOC gas.

Background technology

A large amount of coating clouds and organic exhaust gas are will produce in furniture and automotive lacquer industry.Coating cloud is that the solid that spray painting generates is small Particle, main component are benzene,toluene,xylene；Organic exhaust gas main component be the substances such as benzene, ketone, alcohol, ether, ester, alkene and its Homologue.Direct emission VOC compound can cause atmosphere pollution, can also cause the poisoning of human canceration animals and plants, fetal anomaly, base It is mostly at present the methods of burning processing, activated carbon adsorption, UF membrane to the exhaust-gas treatment in paint industry, mostly because of mutation etc. Method needs to carry out the pretreatment to coating cloud and dust, and high grade activated carbon per unit mass absorbs homogenous quantities than 20% to 60% Organic exhaust gas reach saturation, while needing to be replaced frequently activated carbon, and regenerating active carbon is also more complex, it is expensive；Combustion It is mostly heat storage type combustion to burn processing（RTO）, recovery type thermal device burning（TNV）Processing and catalysis burning processing.RTO is run It is of high cost, it takes up a large area, and have secondary pollution, and TNV processing has the problems such as maintenance difficult, short life；It is catalyzed efficiency of combustion Height, but it is catalyzed expensive catalyst in burning, easily cause human poisoning.

Invention content

The technical problem to be solved by the present invention is to provide a kind of low costs, and operation is simple, and operating cost is low recyclable What is used is recycled to the device of VOC gas.

The task of the utility model is done in such a way that a kind of device being recycled to VOC gas, including with paint spray booth The processing unit being connected is provided with negative-pressure air fan in paint spray booth, it is characterised in that：Processing unit include air-introduced machine, liquid reserve tank, Overflow Tower caches gas tank and outlet pipe, and admission line and discharge duct, admission line and paint spray booth phase are provided on air-introduced machine Connection, discharge duct are connected with overflow tower side wall, and run-off, run-off top and outlet pipe phase are provided at the top of Overflow Tower Connection, caches and is provided with downtake pipe at the top of gas tank, the side wall for caching gas tank is connected with outlet pipe, caches gas tank Bottom is connected by circulating line with admission line, and buffer case is internally provided with pressure gauge and VOC electronic detectors, and first It is provided with valve one on exhaust pipe, valve two is provided on outlet pipe, valve three, run-off bottom are provided on circulating line It is provided with drain pipe, drain pipe is connected by the through-hole that run-off bottom is arranged with Overflow Tower, and liquid reserve tank bottom passes through pipeline It is connected with Overflow Tower, liquid reserve tank is internally provided with ultrasonic probe, and liquid reserve tank is connected by inlet tube with run-off, feed liquor Water pump is provided on pipe.

Further, discharge duct is connected with the bottom of Overflow Tower, and the discharge duct end in Overflow Tower is provided with four Platform is in the jet blower of criss-cross setting.

Further, one week at the top of drain pipe is provided with zigzag overflow port.

Further, it is provided with filter screen in the pipeline between liquid reserve tank and Overflow Tower.

Further, it caches in the discharge duct between gas tank and run-off and is fixedly installed drier.

The utility model is of low cost, simple in structure, can handle the device of coating cloud and organic exhaust gas simultaneously, can be effective Removal VOC gas.

Description of the drawings

Fig. 1 is the structural schematic diagram of the utility model；

Fig. 2 is the structural schematic diagram of jet blower；

Fig. 3 is the structural schematic diagram of overflow port.

Drawing explanation：1, paint spray booth, 2, air-introduced machine, 3, liquid reserve tank, 4, Overflow Tower, 5, caching gas tank, 6, outlet pipe, 7, Admission line, 8, discharge duct, 9, run-off, 10, downtake pipe, 11, circulating line, 12, valve one, 13, valve two, 14, valve three, 15, drain pipe, 16, through-hole, 17, ultrasonic electrode probe, 18, inlet tube, 19, water pump, 20, jet blower, 21, overflow port, 22, filter screen, 23, drier, 24, pressure gauge, 25, VOC electronic detectors, 26, water curtain.

Specific implementation mode

In the description of the present invention, it should be understood that term " longitudinal direction ", " transverse direction ", "upper", "lower", " preceding ", The orientation or positional relationship of the instructions such as " rear ", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" be based on Orientation or positional relationship shown in the drawings is merely for convenience of description the utility model, does not indicate or imply the indicated dress It sets or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as to the utility model Limitation.

It is described in detail the technical solution of the utility model in conjunction with attached drawing, a kind of device being recycled to VOC gas, including The processing unit being connected with paint spray booth 1, is provided with negative-pressure air fan in paint spray booth, processing unit include air-introduced machine 2, liquid reserve tank 3, Overflow Tower 4 caches gas tank 5 and outlet pipe 6, and admission line 7 and discharge duct 8, admission line and spray are provided on air-introduced machine Japanning room is connected, and discharge duct is connected with overflow tower side wall, is provided with run-off 9 at the top of Overflow Tower, at the top of run-off with go out Feed channel is connected, and caches and is provided with downtake pipe 10 at the top of gas tank, and the side wall for caching gas tank is connected with outlet pipe, The bottom of caching gas tank is connected by circulating line 11 with admission line, and buffer case is internally provided with pressure gauge 24 and VOC Electronic detector 25 is provided with valve 1 on downtake pipe, valve 2 13 is provided on outlet pipe, is set on circulating line It is equipped with valve 3 14, run-off bottom is provided with drain pipe 15, the through-hole 16 and overflow that drain pipe is arranged by run-off bottom Tower is connected, and liquid reserve tank bottom is connected by pipeline with Overflow Tower, and liquid reserve tank is internally provided with ultrasonic probe 17, liquid reserve tank It is connected with run-off by inlet tube 18, water pump 19 is provided on inlet tube.

When handling the VOC gas that paint spray booth generates, treatment fluid can be put into liquid reserve tank, treatment fluid includes point Solve liquid and absorbing liquid:

Decomposed solution:Sodium citrate 5~10%, sodium acetate 5~10%, neopelex 3~5%, water 75%~ 87%.（Quality proportioning utilizes the similar principle that mixes of organic chemistry）

Absorbing liquid:Iron chloride 1~5%, EDTA 1~3%, protein degrading enzyme 7~20%, water 72%~ 85%.（Quality proportioning, it is theoretical using Hitman's bimodulus）

Decomposed solution absorbing liquid liquid is according to 6~10：3~7 mass ratio is uniformly mixed and is configured to treatment fluid.Treatment fluid It can be recycled, only need to add appropriate tap water in complex liquid, replace primary, pollutant decomposable asymmetric choice net, no sedimentation within about 3-6 months Object, non-secondary pollution, be not necessarily to special wastewater collection controlling device, after replacement waste liquid can it is in line enter city planting ductwork processing, will locate Treatment fluid is pumped into run-off after being put into liquid reserve tank by water pump by reason liquid to be accumulated in run-off, when treatment fluid height is accumulated It is flowed into Overflow Tower from drain pipe after at the top of to drain pipe and forms water curtain, the negative-pressure air fan in paint spray booth makes shape in paint spray booth at this time At fallout winds, the VOC gas in fallout winds are passed sequentially through after admission line, air-introduced machine and discharge duct enter in Overflow Tower and are passed through The water curtain for the treatment of fluid, when fallout winds are raised across water, VOC gas carry out reaction treatment with treatment fluid, and then fallout winds are by overflowing From being expelled in outlet pipe in caching gas tank behind stream pond, valve one and valve three are closed at this time, and valve two is in Open state, the pressure gauge and VOC electronic detectors cached in gas tank are monitored in real time, can be held according to caching gas tank itself The pressure setup pressure value of load, when reaching set pressure value, and the parameter of VOC electronic detectors monitoring not exceeded reaches discharge mark On time, it keeps valve three to close at this time, opens valve one, close valve two, the gas in discharge caching gas tank, when one section of discharge After time, when the numerical value in pressure gauge drop reduces, valve one and valve three is made to be closed, Open valve two continues It caches and collects treated gas in gas tank, after then reaching certain pressure, valve three is kept to close, open valve one, closed Valve two, discharge caches the gas in gas tank, when pressure gauge is not up to set pressure value or just reaches set pressure value, and When the superscalar data of VOC electronic detector building materials, valve one and valve two are closed, Open valve three by circulating line and draws Flow fan is fed gas into again carries out reaction treatment again in Overflow Tower, discharge a period of time when that will cache the gas in gas tank Afterwards, closing valve three opens valve two, and caching gas tank continues to collect gas after closing valve one, reaches both level pressure when reaching to work as Force value and the parameter of VOC electronic detectors monitoring be not exceeded when reaching discharge standard, and gas is discharged into air.

Treatment fluid after being reacted with VOC gas is back to by Overflow Tower in liquid reserve tank, opens ultrasonic electrode at this time Probe, the ultrasonic wave of 100~1000kHz can instantaneously generate high temperature and pressure by solution；Small complex in body is in sound wave It is intensified under effect, while microjet and shock wave with strong impacts is generated with the speed of about 110m/s.Liquid at this time Following reaction occurs for internal portion：

1, partial organic substances are because the pyrolytic reaction similar to burning occurs for high temperature and pressure；

2, partial organic substances or water enter free radical (H, HO, HOO, O etc. of formation strong oxidizing property after cavitation bubble pyrolysis ), part free radical has the freedom that can be generated with cavitation in conjunction with the oxygen and H2O2 for forming free state, organic matter soluble in water Base and H2O2 carry out a series of reaction, and to make, organic pollution directly decomposes or free-radical oxidation is degraded；

3, the mechanical effect of ultrasonic wave can be such that the carbon key on macromolecular main chain is broken, to play degraded macromolecular Effect；

Treatment fluid after being reacted with VOC gas by the treatment and purification of ultrasonic electrode probe, enables treatment fluid to repeat It utilizes.

It is provided with zigzag overflow port 21 within one week at the top of drain pipe, the treatment fluid in run-off can be enable by overflowing Head piece uniformly flows into Overflow Tower, and discharge duct is connected with the bottom of Overflow Tower, the discharge duct end setting in Overflow Tower Have four be in criss-cross setting jet blowers 20, the gas that jet blower gives off can make gas being emitted into evenly excessive It flows in tower, the water curtain 26 that exhaust gas is formed with treatment fluid is made more preferably to come into full contact with carry out exhaust-gas treatment；Between liquid reserve tank and Overflow Tower Pipeline in be provided with filter screen 22, for filtering the paint slag and dust carried secretly in fallout winds, cache between gas tank and run-off Discharge duct in be fixedly installed drier 23, for dry by being expelled to caching gas tank from outlet pipe after run-off In treated gas.

The basic principle of the utility model, main feature and advantage has been shown and described above, it is new not departing from this practicality Under the premise of type spirit and scope, the utility model also has various changes and modifications, these changes and improvements both fall within requirement and protect The scope of the utility model of shield.

Claims (5)

1. a kind of device being recycled to VOC gas includes the processing unit being connected with paint spray booth, is provided in paint spray booth Negative-pressure air fan, it is characterised in that：Processing unit includes air-introduced machine, liquid reserve tank, Overflow Tower, caching gas tank and outlet pipe, air inducing Admission line and discharge duct are provided on machine, admission line is connected with paint spray booth, and discharge duct is connected with overflow tower side wall It connects, run-off is provided at the top of Overflow Tower, is connected with outlet pipe at the top of run-off, is cached and be provided with first at the top of gas tank Exhaust pipe, the side wall for caching gas tank are connected with outlet pipe, and the bottom for caching gas tank passes through circulating line and admission line phase Connection, buffer case are internally provided with pressure gauge and VOC electronic detectors, valve one, escape pipe are provided on downtake pipe It is provided with valve two on road, valve three is provided on circulating line, run-off bottom is provided with drain pipe, and drain pipe passes through overflow The through-hole of bottom of pond portion setting is connected with Overflow Tower, and liquid reserve tank bottom is connected by pipeline with Overflow Tower, is set inside liquid reserve tank It is equipped with ultrasonic probe, liquid reserve tank is connected by inlet tube with run-off, and water pump is provided on inlet tube.

2. a kind of device being recycled to VOC gas according to claim 1, it is characterised in that：Discharge duct with overflow The bottom of stream tower is connected, and the discharge duct end in Overflow Tower is provided with four jet blowers in criss-cross setting.

3. a kind of device being recycled to VOC gas according to claim 1, it is characterised in that：At the top of drain pipe It is provided with zigzag overflow port within one week.

4. a kind of device being recycled to VOC gas according to claim 1, it is characterised in that：Liquid reserve tank and overflow It is provided with filter screen in pipeline between tower.

5. a kind of device being recycled to VOC gas according to claim 1, it is characterised in that：It caches gas tank and overflows It is fixedly installed drier in discharge duct between stream pond.