CN210584336U - Double-rotating-wheel organic waste gas treatment device - Google Patents
Double-rotating-wheel organic waste gas treatment device Download PDFInfo
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- CN210584336U CN210584336U CN201921391369.4U CN201921391369U CN210584336U CN 210584336 U CN210584336 U CN 210584336U CN 201921391369 U CN201921391369 U CN 201921391369U CN 210584336 U CN210584336 U CN 210584336U
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Abstract
The utility model discloses a double-runner organic waste gas treatment device, which comprises a honeycomb runner and a zeolite runner, wherein the honeycomb runner is used for drying organic waste gas, and the zeolite runner is used for adsorbing and concentrating the organic waste gas; the honeycomb rotating wheel comprises a drying adsorption area and a drying desorption area, and the zeolite rotating wheel comprises a zeolite adsorption area, a zeolite desorption area and a cooling area; the organic waste gas is absorbed in the drying absorption area and the zeolite absorption area, and the gas treated by the zeolite absorption area is discharged; volatile organic compounds adsorbed in the zeolite desorption area and the dry desorption area are heated by hot air, the heated volatile organic compounds are struggled and bound, and organic waste gas after desorption is conveyed to a combustion device for combustion treatment. The utility model discloses increased the honeycomb runner and set up suitable connection structure before the zeolite runner for adsorb the steam in the organic waste gas, the zeolite runner is difficult for blockking up to dry gas, and zeolite runner adsorption efficiency is higher.
Description
Technical Field
The utility model relates to a technical field of exhaust-gas treatment equipment especially relates to a double-runner organic waste gas treatment device.
Background
For low-concentration organic waste gases (VOCs), under the condition of large air volume (such as printing factories, workshops and the like), the recovery and other measures are carried out to prevent pollutants from diffusing into the atmosphere, the required equipment is extremely large, so the operation cost for treating the VOCs is very expensive, the economic pressure for enterprises is high, the investment in the aspect of treating tail gas is insufficient, and the tail gas emission does not accord with the national standard, and the environment is polluted. The zeolite runner system is developed from the eighties of the last century and is gradually applied to the field, organic waste gas (VOCs) with low concentration and large air volume can be concentrated and absorbed for recovery, and finally pollutants are destroyed by an incineration technology, so that the zeolite runner system is mainly used for treating industrial organic waste gas. In treating organic waste gas with low concentration and large air quantity, the zeolite runner technology is one of the most economic means, and the effect is extremely good. The zeolite molecular sieve is installed into cylindrical rotating wheel, which is divided into adsorption zone, desorption zone and cooling zone, and the zeolite rotating wheel rotates at certain rotation speed and continuously and repeatedly rotates in each zone. Waste gas enters an adsorption area of the zeolite molecular sieve through the air inlet pipeline, volatile organic compounds in the waste gas can be adsorbed due to the characteristics of zeolite, the waste gas is purified, and the purified gas is discharged to the atmosphere from the exhaust pipeline. The volatile organic compounds adsorbed in the zeolite rotating wheel are blown off and desorbed when meeting preheated gas in the desorption area, and are destroyed in a subsequent combustion device. The zeolite rotating wheel is cooled in the cooling area and is recovered to be reusable, and heat can be recycled.
The key point of the rotating wheel technology is the adsorption capacity of the molecular sieve, whether the hydrophobicity is excellent or not determines the quality of the device under the condition of ensuring the large specific surface area, and then the humidity of a factory with high exhaust gas humidity is more than 60 percent, so that great examination is made on the hydrophobicity of zeolite. The zeolite having poor hydrophobicity causes the fine pores of the molecular sieve to be occupied by moisture, and prevents the exhaust gas from contacting the zeolite, thereby reducing the adsorption efficiency. In actual operation, the problem of zeolite blockage is always the cause of low purification efficiency.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a double-runner organic waste gas treatment device to the zeolite runner among the solution prior art causes the problem of zeolite jam because of adsorbing steam.
The technical scheme of the utility model as follows:
a double-rotary organic waste gas treatment device comprises:
the waste gas circulation pipeline sequentially comprises a waste gas inlet pipe, a waste gas treatment pipeline and an exhaust pipe, and the waste gas inlet pipe is connected with the air inlet fan;
the waste gas purification mechanism sequentially comprises a pre-filter, a honeycomb rotating wheel and a zeolite rotating wheel, wherein the honeycomb rotating wheel comprises a dry adsorption area and a dry desorption area, the zeolite rotating wheel comprises a zeolite adsorption area, a zeolite desorption area and a cooling area, and the pre-filter, the adsorption area of the honeycomb rotating wheel and the zeolite adsorption area of the zeolite rotating wheel are sequentially arranged in the waste gas treatment pipeline; the air inlet fan sends the organic waste gas to the pre-filter through the waste gas inlet pipe, the drying and adsorption area of the honeycomb rotating wheel dries the organic waste gas, and the zeolite adsorption area of the zeolite rotating wheel adsorbs volatile organic compounds in the organic waste gas; the purified gas is discharged through an exhaust pipe;
the waste gas desorption treatment structure comprises a desorption waste gas circulation pipeline, a regeneration fan, a heater and a combustion device, wherein a drying desorption area of the honeycomb rotating wheel and a zeolite desorption area of the zeolite rotating wheel are positioned in the desorption waste gas circulation pipeline; volatile organic compounds adsorbed by the zeolite adsorption area of the zeolite rotating wheel are desorbed in the zeolite desorption area, water vapor adsorbed by the drying adsorption area of the honeycomb rotating wheel is desorbed in the drying desorption area, and the desorbed volatile organic compounds and the water vapor enter the combustion device through the desorption exhaust gas circulation pipeline for combustion treatment;
preferably, the waste gas treatment pipeline is respectively connected at the edge of the dry adsorption zone and at the edge of the zeolite adsorption zone, and the desorption waste gas circulation pipeline is respectively connected at the edge of the dry desorption zone and at the edge of the zeolite desorption zone; the part of the honeycomb rotating wheel, which is positioned in the waste gas treatment pipeline, forms the dry adsorption area, and the rest part of the honeycomb rotating wheel is positioned in the desorption waste gas circulation pipeline, so as to form the dry desorption area; the part of the zeolite rotating wheel positioned in the waste gas treatment pipeline forms the zeolite adsorption area, the part of the zeolite rotating wheel positioned in the desorption waste gas circulating pipeline forms the zeolite desorption area, and the rest part of the zeolite rotating wheel forms the cooling area.
The organic waste gas is dried in the drying and adsorbing area, the adsorption is finished in the zeolite adsorbing area, and the purified gas is discharged; the volatile organic compounds adsorbed by the zeolite rotating wheel in the zeolite adsorption area are desorbed in the zeolite desorption area, and the water vapor adsorbed by the drying rotating wheel in the drying adsorption area is desorbed in the drying desorption area; the zeolite wheel is cooled in the cooling zone.
Preferably, the regeneration fan, the heater, the zeolite desorption area and the drying desorption area are sequentially arranged in an exhaust gas circulation pipeline, the regeneration fan blows hot air into the exhaust gas circulation pipeline, and volatile organic compounds are struggled from the zeolite rotating wheel and the drying rotating wheel in the zeolite desorption area and the drying desorption area under the action of the hot air, so that desorption is completed.
Preferably, the drying adsorption area and the drying desorption area are respectively manufactured and fixed by a fixing piece to form the honeycomb rotating wheel; the zeolite adsorption area, the zeolite desorption area and the cooling area are manufactured respectively and fixed through fixing pieces to form the zeolite rotating wheel. The honeycomb rotating wheel and the zeolite rotating wheel are manufactured in a blocking mode and spliced, so that the honeycomb rotating wheel and the zeolite rotating wheel are convenient to install, disassemble and maintain.
Preferably, the honeycomb rotating wheel and the zeolite rotating wheel are connected through a rotating shaft.
Preferably, the honeycomb rotating wheel and the zeolite rotating wheel synchronously rotate slowly.
Preferably, the honeycomb rotating wheel is made of ceramic fibers and activated carbon, and can absorb moisture rapidly.
Preferably, a filter screen and a condenser are arranged in the pre-filter, and the organic waste gas is primarily filtered to remove impurities and high-boiling-point organic matters.
Preferably, the air volume of the air inlet fan is 5-25 times of that of the regeneration fan, and the low-concentration organic waste gas enters the waste gas inlet pipe at a large air volume.
Compared with the prior art, the beneficial effects of the utility model are as follows:
firstly, the honeycomb rotating wheel is additionally arranged before the zeolite rotating wheel is adsorbed, the honeycomb rotating wheel is also based on the physical adsorption principle, when air passes through the rotating honeycomb rotating wheel, water vapor is adsorbed by the porous honeycomb rotating wheel, and the discharged air is dry; the dried gas is not easy to block the zeolite rotating wheel, and simultaneously, the moisture is prevented from possibly forming adsorption competition with pollutants, and the adsorption space of the zeolite rotating wheel is occupied to reduce the pollutant removal efficiency; remove as much as possible of pollutants, and improve the adsorption capacity of the zeolite runner.
Secondly, in the double-runner organic waste gas treatment device, the drying adsorption area and the drying desorption area are respectively manufactured and fixed by the fixing part to form the honeycomb runner; the zeolite adsorption area, the zeolite desorption area and the cooling area are respectively manufactured and fixed through the fixing piece to form a zeolite rotating wheel, so that the rotating wheel can be conveniently checked and cleaned in a non-working time period, and the service life is prolonged.
Of course, it is not necessary for any particular product to achieve all of the above-described advantages at the same time.
Drawings
FIG. 1 is a schematic view of a double-rotor organic waste gas treatment device according to embodiment 1 of the present invention;
figure 2 is a schematic diagram of a honeycomb wheel and a zeolite wheel according to an embodiment of the present invention.
Reference numerals: an exhaust gas inlet pipe 1; an exhaust gas treatment line 1-2; 1-3 of a first exhaust pipe; an air intake fan 2; a pre-filter 3; a honeycomb rotating wheel 4; a zeolite wheel 5; a dry adsorption zone 16; a dry desorption zone 17; a zeolite adsorption zone 13; a zeolite desorption zone 14; a cooling zone 15; a heater 8; a regenerative fan; a ROC combustion device 9; a second exhaust pipe 10; a second conduit 11.
Detailed Description
The utility model provides a birotor organic waste gas processing apparatus, including waste gas intake pipe, leading filter, honeycomb runner and zeolite runner and connect gradually, the second pipeline is still connected to honeycomb runner and zeolite runner, sets up heater and regeneration fan in the second pipeline. The honeycomb rotating wheel comprises a drying adsorption area and a drying desorption area, and the zeolite rotating wheel comprises a zeolite adsorption area, a zeolite desorption area and a cooling area; the organic waste gas is absorbed in the drying absorption area and the zeolite absorption area, and the organic waste gas treated by the zeolite rotating wheel is discharged. The air after the heating in the second pipeline heats the organic waste gas that zeolite desorption district and dry desorption district adsorb, and organic waste gas desorption after the heating, organic waste gas after the desorption carry to burner and carry out combustion processing. The utility model discloses increased the honeycomb runner before the zeolite runner for adsorb the steam in the organic waste gas, the zeolite runner is difficult for blockking up to dry gas, and zeolite runner adsorption efficiency is higher.
Adsorption and desorption principles: the pre-filter 3 is internally provided with an activated carbon filter screen and a condenser, and the honeycomb rotating wheel 4 is composed of a honeycomb made of ceramic fibers and activated carbon and can quickly absorb water. The zeolite runner 5 is a zeolite molecular sieve formed by metaaluminate and gel, and has stronger adsorption capacity. The organic waste gas is primarily filtered by a prefilter 3 to remove impurities and high-boiling-point organic matters, the drying is finished by a honeycomb rotating wheel 4, and the adsorption and the concentration are finished by a zeolite rotating wheel 5. Honeycomb runner 4 and zeolite runner 5 after the absorption rotate to second pipeline 11, and hot air is to honeycomb runner 4 and the adsorbed waste gas heating of zeolite runner 5, and organic waste gas is heated and is struggled to take off honeycomb runner 4 and zeolite runner 5, accomplishes the desorption, and the volatile organic compounds after the desorption gets into burner and carries out combustion processing, and the gas after the purification is discharged in following the zeolite adsorption zone.
Through the device innovation of this patent, play organic waste gas purification's effect, reduced the device size simultaneously.
The present invention will be further described with reference to the following specific examples. It should be understood that these examples are only for illustrating the present invention, and are not intended to limit the scope of the present invention. In practical applications, the improvement and adjustment made by those skilled in the art according to the present invention still belong to the protection scope of the present invention.
Example 1
Referring to fig. 1 and fig. 2, the dual-rotor organic waste gas treatment device of the present invention comprises a waste gas inlet pipe 1, a waste gas treatment pipeline 1-2, and a first exhaust pipe 1-3, wherein low concentration organic waste gas enters from the waste gas inlet pipe 1, an inlet fan 2 is fixedly arranged in the waste gas inlet pipe 1, and a pre-filter 3, a honeycomb runner 4 and a zeolite runner 5 are sequentially arranged in the waste gas treatment pipeline 1-2; the honeycomb rotor 4 and the zeolite rotor 5 are also connected to a second pipe 11. The honeycomb runner 4 comprises a dry adsorption area 16 and a dry desorption area 17, and both the dry adsorption area 16 and the dry desorption area 17 are semicircular areas. The zeolite rotating wheel 5 comprises a zeolite adsorption zone 13, a zeolite desorption zone 14 and a cooling zone 15; the zeolite adsorption zone 13, zeolite desorption zone 14 and cooling zone 15 are three equally divided sector-shaped zones.
The waste gas treatment pipeline 1-2 is connected on the edges of the dry adsorption zone 16 and the zeolite adsorption zone 13, and the second pipeline 11 is connected on the edges of the zeolite desorption zone 14 and the dry desorption zone 17. Adsorption of the honeycomb rotating wheel 4 and the zeolite rotating wheel 5 is completed in the waste gas inlet pipe 1, the honeycomb rotating wheel and the zeolite rotating wheel are rotated to the second pipeline 11, the heater 8 and the regeneration fan 7 are arranged in the second pipeline 11, the heater 8 and the regeneration fan 7 are arranged at one end of the zeolite rotating wheel 5, and desorption of volatile organic compounds adsorbed by the honeycomb rotating wheel 4 and the zeolite rotating wheel 5 is completed in the second pipeline 11. The heater 8 heats the air to about 200 ℃, and the regeneration fan 7 sends the hot air to the zeolite desorption zone 14 of the zeolite rotating wheel 5 with small air quantity. In order to ensure the adsorption and desorption effects, the air quantity of the air inlet fan 2 is 5-25 times of the air quantity of the regeneration fan 7.
The zeolite adsorption zone 13 is also connected with a first exhaust pipe 1-3, and the drying desorption zone 17 is also connected with a second exhaust pipe 10 and an ROC combustion device 9. The organic waste gas is discharged from the first exhaust pipes 1-3 after being adsorbed by the zeolite adsorption zone 13, and the desorbed volatile organic compounds and water vapor enter the ROC combustion device 9 from the second exhaust pipe 10 for combustion treatment.
An activated carbon filter screen and a condenser are arranged in the pre-filter 3 to carry out primary treatment on the organic waste gas. Prevent the high boiling point substance from attaching to the zeolite runner 5 and being difficult to be desorbed by hot air, causing blockage and influencing the adsorption efficiency. The honeycomb rotating wheel 4 is composed of honeycombs made of ceramic fibers and activated carbon, and can quickly absorb moisture and dry organic waste gas. The zeolite runner 5 is a zeolite molecular sieve formed by metaaluminate and gel, and has stronger adsorption capacity. The honeycomb rotating wheel 4 and the zeolite rotating wheel 5 are connected through a rotating shaft 6. The rotating shaft 6 is driven by an internal motor through a gear, and connects the two rotating wheels and drives the two rotating wheels to move simultaneously. In another embodiment, the honeycomb rotor 4 and the zeolite rotor 5 are not connected and are each connected to a drive means and each rotate.
Preferably, the drying adsorption area 16 and the drying desorption area 17 of the honeycomb rotating wheel 4 are respectively manufactured and spliced to form the honeycomb rotating wheel 4. The zeolite adsorption zone 13, the zeolite desorption zone 14 and the cooling zone 15 of the zeolite rotating wheel 5 are respectively manufactured and then spliced to form the zeolite rotating wheel 5, so that the rotating wheel can be conveniently checked and cleaned in a non-working time period. Dry adsorption zone 16 and dry desorption zone 17 are two semicircles in this embodiment, and zeolite adsorption zone 13, zeolite desorption zone 14 and cooling space 15 are that three central angle is 120 degrees fan-shaped, and two regions of honeycomb runner 4 and the three fan-shaped regional central angle of zeolite runner 5 are not used for the restriction the utility model discloses a protection scope can design according to specific operating mode.
The utility model discloses a double-runner organic waste gas treatment device organic waste gas's processing procedure:
factory exhaust low concentration organic waste gas gets into waste gas intake pipe 1, and intake fan 2 carries the big amount of wind of low concentration organic waste gas to leading filter 3 and just strains, gets rid of impurity and high boiling waste gas, and the low concentration organic waste gas of big amount of wind accomplishes the drying in dry adsorption zone 16, accomplishes in zeolite adsorption zone 13 and adsorbs the concentration, and the gas after the purification is discharged through first exhaust pipe 1-3.
The honeycomb rotating wheel 4 and the zeolite rotating wheel 5 are driven by the rotating shaft 6 to synchronously rotate at a low speed, the drying adsorption area 16 and the zeolite adsorption area 13 finish adsorption in the waste gas treatment pipeline 1-2, and the honeycomb rotating wheel 4 and the zeolite rotating wheel 5 rotate to the second pipeline 11. The heater 8 heats the air to about 200 ℃, the regeneration fan 7 sends the hot air to the zeolite runner, the high-concentration volatile organic compounds adsorbed on the zeolite runner 5 are desorbed, the water vapor adsorbed on the honeycomb runner 4 is desorbed, and the desorbed high-concentration volatile organic compounds and water vapor are discharged from the second exhaust pipe 10 to the ROC combustion device for combustion treatment. The honeycomb rotating wheel 4 and the zeolite rotating wheel 5 continue to rotate, the zeolite rotating wheel 5 rotates out of the second pipeline 11 and carries out natural cooling, and the honeycomb rotating wheel 4 enters the waste gas treatment pipeline 1-2 to continue to adsorb; the zeolite rotating wheel 5 is restored after being cooled in the cooling area 15 and continuously rotates to enter the waste gas treatment pipeline 1-2 for continuous adsorption.
The above disclosure is only illustrative of the preferred embodiments of the present invention. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and its practical application, to thereby enable others skilled in the art to best utilize the invention. The present invention is limited only by the claims and their full scope and equivalents.
Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (9)
1. A double-rotary organic waste gas treatment device is characterized by comprising:
the waste gas circulation pipeline sequentially comprises a waste gas inlet pipe, a waste gas treatment pipeline and an exhaust pipe, and the waste gas inlet pipe is connected with the air inlet fan;
the waste gas purification mechanism sequentially comprises a pre-filter, a honeycomb rotating wheel and a zeolite rotating wheel, wherein the honeycomb rotating wheel comprises a dry adsorption area and a dry desorption area, the zeolite rotating wheel comprises a zeolite adsorption area, a zeolite desorption area and a cooling area, and the pre-filter, the adsorption area of the honeycomb rotating wheel and the zeolite adsorption area of the zeolite rotating wheel are sequentially arranged in the waste gas treatment pipeline; the air inlet fan sends the organic waste gas to the pre-filter through the waste gas inlet pipe, the drying and adsorption area of the honeycomb rotating wheel dries the organic waste gas, and the zeolite adsorption area of the zeolite rotating wheel adsorbs volatile organic compounds in the organic waste gas; the purified gas is discharged through an exhaust pipe;
the waste gas desorption treatment structure comprises a desorption waste gas circulation pipeline, a regeneration fan, a heater and a combustion device, wherein a drying desorption area of the honeycomb rotating wheel and a zeolite desorption area of the zeolite rotating wheel are positioned in the desorption waste gas circulation pipeline; volatile organic compounds adsorbed in the zeolite adsorption area of the zeolite rotating wheel are desorbed in the zeolite desorption area, water vapor adsorbed in the dry adsorption area of the honeycomb rotating wheel is desorbed in the dry desorption area, and the desorbed volatile organic compounds and the water vapor are taken away by hot air generated by the regeneration fan and the heater through the desorption exhaust gas circulating pipeline and enter the combustion device for combustion treatment.
2. The dual-rotor organic waste gas treatment device according to claim 1, wherein the waste gas treatment pipes are respectively connected to the edge of the dry adsorption zone and the edge of the zeolite adsorption zone, and the desorption waste gas circulation pipes are respectively connected to the edge of the dry desorption zone and the edge of the zeolite desorption zone; the part of the honeycomb rotating wheel positioned in the waste gas treatment pipeline forms the dry adsorption area, and the part of the honeycomb rotating wheel positioned in the desorption waste gas circulating pipeline forms the dry desorption area; the part of the zeolite rotating wheel positioned in the waste gas treatment pipeline forms the zeolite adsorption area, the part of the zeolite rotating wheel positioned in the desorption waste gas circulation pipeline forms the zeolite desorption area, and the part of the zeolite rotating wheel positioned outside the desorption waste gas circulation pipeline and the waste gas treatment pipeline forms the cooling area.
3. The dual-rotor organic waste gas treatment device according to claim 1, wherein the regeneration fan, the heater, the zeolite desorption zone and the dry desorption zone are sequentially disposed in the desorption waste gas flow pipeline.
4. The dual rotor organic waste gas treatment device of claim 1, wherein the honeycomb rotor comprises several segments, each segment being separately fabricated and fixed by fasteners to form the honeycomb rotor.
5. The dual-rotor organic waste gas treatment device of claim 1, wherein the zeolite rotor comprises several segments, each segment being separately fabricated and fixed by a fixing member to form the zeolite rotor.
6. The dual rotor organic waste gas treatment device of claim 1, wherein the honeycomb rotor and the zeolite rotor are connected by a rotating shaft.
7. The dual rotor organic waste gas treatment plant of claim 6, wherein the honeycomb rotor and the zeolite rotor rotate synchronously.
8. The dual rotor organic waste gas treatment device of claim 1, wherein the material of the honeycomb rotor comprises ceramic fibers and activated carbon that can rapidly absorb moisture.
9. The dual-rotor organic waste gas treatment device according to claim 1, wherein a filter screen and a condenser are arranged in the pre-filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921391369.4U CN210584336U (en) | 2019-08-26 | 2019-08-26 | Double-rotating-wheel organic waste gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921391369.4U CN210584336U (en) | 2019-08-26 | 2019-08-26 | Double-rotating-wheel organic waste gas treatment device |
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| Publication Number | Publication Date |
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| CN210584336U true CN210584336U (en) | 2020-05-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921391369.4U Active CN210584336U (en) | 2019-08-26 | 2019-08-26 | Double-rotating-wheel organic waste gas treatment device |
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| CN (1) | CN210584336U (en) |
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2019
- 2019-08-26 CN CN201921391369.4U patent/CN210584336U/en active Active
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