CN211384521U - Spraying VOCs organic waste gas biological treatment device - Google Patents
Spraying VOCs organic waste gas biological treatment device Download PDFInfo
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- CN211384521U CN211384521U CN201922231441.3U CN201922231441U CN211384521U CN 211384521 U CN211384521 U CN 211384521U CN 201922231441 U CN201922231441 U CN 201922231441U CN 211384521 U CN211384521 U CN 211384521U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Abstract
The utility model discloses a spraying VOCs organic waste gas biological treatment device. The device includes biological washing tower and biofiltration tower, and biological washing tower includes the cylindric container, and the cylindric container includes a plurality of bio-packing layers, and the upper portion of every bio-packing layer is provided with first shower nozzle, and cylindric container lower part is provided with the first import that waste gas got into for the circulation groove of receiving water, the circulation groove passes through the circulating pump and is connected with first shower nozzle, and the top of cylindric container is provided with exhaust gas exhaust's first export, biofiltration tower is including horizontal rectangle container, and rectangle container is provided with a plurality of biological packing room from one end to the other end, and the downside of foremost biological packing room is the second import, and the upside of last biological packing room is the second export, first export and the import intercommunication of second, and the top of every biological packing room is provided with the second shower nozzle of shower water. The problem of prior art exhaust treatment device's pressure loss is big, be not suitable for high concentration organic waste gas is solved.
Description
Technical Field
The utility model relates to a waste gas treatment device especially relates to a spraying VOCs organic waste gas biological treatment device.
Background
At present, the biological treatment of the organic waste gas sprayed in China generally adopts three methods: (1) the biological washing method is to utilize microbe absorbing liquid comprising microbe, nutrients and water to treat waste gas. The gas-liquid contact method in the biological washing method generally adopts a liquid-phase spraying method, a gas-phase bubbling method and the like. Since the circulating washing liquid of the biological washing method needs to be regenerated by an activated sludge method, the circulating washing liquid is mainly water in a normal condition. (2) In the biological trickling filtration method, VOCs gas enters from the bottom of the tower, is contacted with a biological membrane in the flowing process and is purified, and the purified gas is discharged from the top of the tower. And circulating spray liquid enters the filter bed from the upper part of the biological filler layer, flows through the surface of the biological membrane and then is precipitated at the bottom of the filter tower, N, P, pH regulator and the like are added into supernatant liquid for recycling, and precipitates are discharged out of the system. (3) The biological filtration method comprises a purification system consisting of a humidifying tower and a biological filtration tower. The volatile organic gas enters a filter tower after being humidified in a humidifying tower, is in contact with a biological filter material inoculated with a biofilm and is degraded to finally generate CO2、H2O and microbial matrix, and the purified gas is discharged from the top. And regularly spraying nutrient solution on the tower top to provide nutrients and water for microorganisms on the filter material and maintain a constant pH value.
2. The advantages and the disadvantages of the existing products are objectively evaluated, and the main points are the following disadvantages:
the advantages are that: high removal rate, simple equipment, low operating cost, less secondary pollution, and particularly, more economical efficiency when treating gaseous pollutants with low concentration and good biodegradability.
The disadvantages are as follows: the pressure loss is large, the impact load resistance is poor, the requirement of microorganisms on the growth environment is high, the microorganisms are sensitive to temperature and humidity changes, the size is large, and the method is not suitable for high-concentration organic waste gas.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a pressure loss is little, is fit for high concentration exhaust-gas treatment's spraying VOCs organic waste gas biological treatment device to prior art not enough.
In order to achieve the above object, the utility model discloses a technical scheme that spraying VOCs organic waste gas biological treatment device adopted is:
a biological treatment device for organic waste gas sprayed with VOCs (volatile organic compounds) comprises a biological washing tower and a biological filtering tower, wherein the biological washing tower comprises a vertically placed cylindrical container, the cylindrical container comprises a plurality of biological packing layers from top to bottom, the upper part of each biological packing layer is provided with a first spray nozzle for spraying water, the lower part of the biological packing layer at the lowest layer is provided with a first inlet for waste gas to enter, a circulating groove for receiving water is arranged below the first inlet, the circulating groove is connected with the first spray nozzle through a circulating pump, the top of the cylindrical container is provided with a first outlet for waste gas discharge, the biological filtering tower comprises a transverse rectangular container, the rectangular container is provided with a plurality of biological packing chambers from one end to the other end, the upper side of the former biological packing chamber is communicated with the lower side of the latter packing chamber, and the lower side of the former biological packing chamber is provided with a second inlet, the upper side of the last biological packing chamber is provided with a second outlet which is provided with a draught fan, the first outlet is communicated with the second inlet to introduce the waste gas of the biological washing tower into the biological filtering tower, the top of each biological packing chamber is provided with a second spray head for spraying water, the lower side of each biological packing chamber and the circulating groove are provided with a sewage outlet which is communicated with a sewage treatment device,the circulating tank is provided with activated sludge. VOCs-sprayed organic waste gas is collected and sent into a biological washing tower through a workshop, most particulate matters are intercepted by a filtering system consisting of a plurality of biological filler layers, particulate pollutants are leached into activated sludge in a circulating tank for purification under the action of a humidifying system of a first spray head, and the particulate pollutants are decomposed into CO under the action of microbial metabolism2、H2O and a microbial matrix; then the waste gas enters a biological filter tower to further treat gaseous organic pollutants, air is discharged from the bottom of the biological packing chamber in sequence, air is introduced from the upper side to form a gas baffling system, the effective residence time of the pollutants is prolonged, the biological filter tower is humidified under the atomization and moisture retention effects of the second spray head, the organic pollutants and microorganisms in the waste gas are fully and effectively removed, the purification effect is improved, and finally the waste gas is discharged after reaching the standard.
The circulation tank is connected with two parallel circulating pumps, the two circulating pumps are connected with the first spray head, and one circulating pump is a standby circulating pump. When one circulating pump is damaged, the other circulating pump can continue to work, and the normal operation of the VOCs organic waste gas biological treatment device is ensured.
The circulation groove is provided with a first water replenishing port for replenishing water. The first water replenishing port replenishes water for the circulating groove, and ensures that enough water is circulated and sprayed in the circulating groove.
The rectangular container is provided with a spraying pump chamber for storing water, a spraying pump is arranged in the spraying pump chamber, and the spraying pump is communicated with a second spray head on the upper side of the biological filling chamber. The spraying pump chamber is used for storing water, and the structure is compact.
Two spray pumps connected in parallel are arranged in the spray pump chamber, the two spray pumps are both connected with the second spray head, and one of the spray pumps is a standby spray pump.
The spraying pump chamber is provided with a second water replenishing port for replenishing water to the spraying pump chamber. The second water replenishing port ensures that enough water source can provide atomized water for the biological stuffing chamber.
The air outlet of draught fan is provided with the detection mouth that is used for the sample. The detection port can detect the discharged gas at any time so as to ensure that the discharged gas is discharged up to the standard.
Compared with the prior art, the utility model, have following advantage:
1. the induced draft fan is arranged, and the pressure loss is smaller than that of the traditional biological filtration method;
2. the biological filtration tower which is vertically arranged has good purification effect, and the efficiency is improved by more than 30 percent compared with the traditional biological filtration method;
3. the activated sludge decomposes the particles in time, so that the generation of secondary pollutants is reduced;
4. compared with other waste gas treatment methods, the treatment device has the advantages of low investment and low operating cost;
5. the device has strong organic pollutant load impact resistance and can be suitable for purifying and treating high-concentration organic waste gas.
Drawings
FIG. 1 is a schematic structural diagram of a biological treatment device for spraying VOCs organic waste gas.
Detailed Description
The present invention will be further clarified by the following description in conjunction with the accompanying drawings, which are to be understood as illustrative only and not as limiting the scope of the invention, and modifications of the various equivalent forms of the invention by those skilled in the art after reading the present invention are within the scope defined by the appended claims.
As shown in fig. 1, a biological treatment device for organic waste gas sprayed with VOCs, comprising a biological washing tower 10 and a biological filtration tower 20, wherein the biological washing tower 10 comprises a vertically placed cylindrical container 101, two layers of biological packing layers 102 are installed on the cylindrical container from top to bottom, each layer of biological packing layer 102 adopts a packing, a biological flora is attached to the packing, a first spray head 103 used for spraying water is arranged on the upper portion of each layer of biological packing layer, a first inlet 104 for waste gas to enter is formed in the cylindrical container on the lower portion of the lowest layer of biological packing layer, a circulation tank 105 used for receiving water is installed below the first inlet 104, the circulation tank 105 is connected with the first spray head 103 through a circulation pump 106, electromagnetic valves are installed at the inlet and the outlet of the circulation pump 106, and a first outlet 107 for waste gas to discharge is formed at the top of the cylindrical container. The biological filter tower 20 comprises a transverse rectangular container 201, 3 biological filler chambers 202 are arranged on the rectangular container from one end to the other end, the biological filler chambers 202 are filled with fillers, adjacent biological filler chambers 202 are separated by a partition plate 203, the upper end of the partition plate on the front side of each biological filler chamber is fixedly connected with the rectangular container 201 in a closed mode, the lower end of the partition plate on the rear side of each biological filler chamber is open, the upper end of the partition plate on the rear side of each biological filler chamber is open, the lower end of the partition plate on the rear side of each biological filler chamber is fixedly connected with the rectangular container 201 in a closed mode, the partition plate on the rear side of the previous biological filler chamber and the partition plate on the front side of the next biological filler chamber form a gas channel 204, the upper side of the previous biological filler chamber is communicated with the lower side of the next filler chamber, a gas flow deflection system is formed, the lower side of the foremost biological filler chamber is provided with a, the first outlet 107 is communicated with the second inlet 205, waste gas of the biological washing tower 10 is introduced into the biological filtration tower 20, the top of each biological packing chamber is provided with a second spray head 207 for spraying water, the lower side of each biological packing chamber 202 and the circulating groove are provided with a sewage outlet 40, the water outlet 40 is provided with an electromagnetic valve and is communicated with a sewage treatment device, and activated sludge is placed in the circulating groove.
The circulation tank is connected with two circulating pumps 106 connected in parallel, and two circulating pumps are all connected with first shower nozzle, and one of them circulating pump is reserve circulating pump, and the solenoid valve is all installed to the import and the export of circulating pump, and another circulating pump can continue work when a circulating pump damages, has guaranteed spraying VOCs organic waste gas biological treatment device normal operating.
The circulation tank is provided with a first water replenishing port 108 for replenishing water, the first water replenishing port is provided with an upper side mounted on the water outlet 40, the first water replenishing port is provided with an electromagnetic valve for replenishing water to the circulation tank, and sufficient water in the circulation tank is ensured for circulating spraying.
The rectangle container is provided with the pump chamber 208 that sprays that is used for depositing the water, it is provided with two spray pump 209 in the pump chamber to spray, two spray pumps all are connected with the second shower nozzle, one of them spray pump is reserve spray pump, the solenoid valve is all installed to two delivery ports that spray the pump is equal, the second shower nozzle intercommunication of spray pump and biological packing room upside, it is used for depositing the water to spray the pump chamber, the structure is compacter, it is provided with the second moisturizing mouth 209 that is used for rather than the moisturizing to spray the pump chamber, the solenoid valve is installed at the second moisturizing mouth, the second moisturizing mouth has guaranteed to have the sufficient atomized water that provides of water source to the biological packing room.
The solenoid valve is installed to draught fan 30's air intake, and draught fan 30's air outlet is provided with the detection mouth 301 that is used for the sample, detects the mouth and can detect the combustion gas at any time to guarantee that the combustion gas is discharge to reach standard.
The circulation tank is equipped with a first level sensor 109 for monitoring the liquid level and a PH sensor 110 for monitoring the PH.
The spray pump chamber 208 is fitted with a second level sensor 210 for monitoring the liquid level.
1. The fillers of the biological filler layer 102 and the biological filler chamber 202 are filiform bionic fillers with the diameter of about 0.1mm, the materials are PVC, and the filiform fillers are filled in plastic hollow spheres with the diameter of 200 mm;
2. the filler is a microorganism attachment carrier, and the microorganism flora is related to the types of organic pollutants in the treated waste gas and mainly takes aerobic bacteria and facultative bacteria as main components;
3. the plastic hollow balls of the biological filler layer 102 and the biological filler chamber 202 form a gap in front, the filler porosity is 3-6 times larger than that of the filler in the prior art, and the usage amount is less than that of the traditional biological filler (1/3-1/5), so the pressure loss is small, the pressure loss is traditional (1/3-1/6), the plastic hollow balls are formed by overlapping, the filamentous filler in the biological hollow balls has better strength, microbial flora is fixed on the filler, and the impact resistance is strong.
Claims (7)
1. The utility model provides a spraying VOCs organic waste gas biological treatment device, includes biological scrubbing tower and biological filter tower, its characterized in that: the biological washing tower comprises a vertically placed cylindrical container, the cylindrical container comprises a plurality of biological packing layers from top to bottom, a first spray nozzle for spraying water is arranged at the upper part of each biological packing layer, a first inlet for waste gas to enter is arranged at the lower part of the biological packing layer at the lowest layer, a circulating groove for receiving water is arranged below the first inlet, the circulating groove is connected with the first spray nozzle through a circulating pump, a first outlet for discharging waste gas is arranged at the top of the cylindrical container, the biological filtering tower comprises a transverse rectangular container, the rectangular container is provided with a plurality of biological packing chambers from one end to the other end, the upper side of the former biological packing chamber is communicated with the lower side of the latter biological packing chamber, the lower side of the former biological packing chamber is a second inlet, the upper side of the last biological packing chamber is a second outlet, the second outlet is provided with an induced draft fan, and the first outlet is communicated with the second inlet, introducing waste gas of a biological washing tower into a biological filtering tower, wherein a second spray nozzle for spraying water is arranged at the top of each biological packing chamber, a sewage outlet is formed in the lower side of each biological packing chamber and a circulating groove, the sewage outlet is communicated with a sewage treatment device, and activated sludge is arranged in the circulating groove.
2. The biological treatment device for organic waste gas after spraying VOCs according to claim 1, characterized in that: the circulation tank is connected with two parallel circulating pumps, the two circulating pumps are connected with the first spray head, and one circulating pump is a standby circulating pump.
3. The biological treatment device for organic waste gas after spraying VOCs according to claim 1, characterized in that: the circulation groove is provided with a first water replenishing port for replenishing water.
4. The biological treatment device for organic waste gas after spraying VOCs according to claim 1, characterized in that: the rectangular container is provided with a spraying pump chamber for storing water, a spraying pump is arranged in the spraying pump chamber, and the spraying pump is communicated with a second spray head on the upper side of the biological filling chamber.
5. The biological treatment device for organic waste gas generated by spraying VOCs according to claim 4, wherein: two spray pumps connected in parallel are arranged in the spray pump chamber, the two spray pumps are both connected with the second spray head, and one of the spray pumps is a standby spray pump.
6. The biological treatment device for organic waste gas generated by spraying VOCs according to claim 4, wherein: the spraying pump chamber is provided with a second water replenishing port for replenishing water to the spraying pump chamber.
7. The biological treatment device for organic waste gas after spraying VOCs according to claim 1, characterized in that: the air outlet of draught fan is provided with the detection mouth that is used for the sample.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922231441.3U CN211384521U (en) | 2019-12-13 | 2019-12-13 | Spraying VOCs organic waste gas biological treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922231441.3U CN211384521U (en) | 2019-12-13 | 2019-12-13 | Spraying VOCs organic waste gas biological treatment device |
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| Publication Number | Publication Date |
|---|---|
| CN211384521U true CN211384521U (en) | 2020-09-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922231441.3U Active CN211384521U (en) | 2019-12-13 | 2019-12-13 | Spraying VOCs organic waste gas biological treatment device |
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| Country | Link |
|---|---|
| CN (1) | CN211384521U (en) |
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- 2019-12-13 CN CN201922231441.3U patent/CN211384521U/en active Active
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