CN106310867A - Device for treating vacuum calcining waste gas and treatment method - Google Patents
Device for treating vacuum calcining waste gas and treatment method Download PDFInfo
- Publication number
- CN106310867A CN106310867A CN201610687557.6A CN201610687557A CN106310867A CN 106310867 A CN106310867 A CN 106310867A CN 201610687557 A CN201610687557 A CN 201610687557A CN 106310867 A CN106310867 A CN 106310867A
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- Prior art keywords
- gas
- waste gas
- pipeline
- air inlet
- activated carbon
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1487—Removing organic compounds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2247/00—Details relating to the separation of dispersed particles from gases, air or vapours by liquid as separating agent
- B01D2247/10—Means for removing the washing fluid dispersed in the gas or vapours
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
- B01D2257/708—Volatile organic compounds V.O.C.'s
Abstract
The invention discloses a device for treating vacuum calcining waste gas and a treatment method. The device comprises gas-water separators, a washing tower and an activated carbon adsorption device, wherein a first gas inlet and a first gas outlet are formed in each gas-water separator; a water draining port communicated with a water collecting tank is formed in the lower end of each gas-water separator; a second gas inlet is formed in the side wall of the washing tower; a second gas outlet is formed in the upper end of the washing tower; a third gas inlet is formed in one side of the activated carbon adsorption device; a third gas outlet is formed in the upper part of the activated carbon adsorption device; each first gas inlet is connected with a calcining waste gas exhausting pipe, and a water ring vacuum pump is arranged on each connecting pipe; each first gas outlet and the corresponding second gas inlet are connected through a pipe; the second gas outlet and the third gas inlet are connected through a pipe, and a fan is arranged on the connecting pipe. The invention has the advantages as follows: dust and volatile organic compounds can be effectively separated, activated carbon does not adsorb a large amount of dust, the adsorption efficiency of the activated carbon is improved, the service life of the activated carbon is prolonged, and the running cost is reduced.
Description
Technical field:
The invention mainly relates to vacuum calcining waste gas technical field, particularly relate to a kind of device processing vacuum calcining waste gas
And processing method.
Background technology:
At the spinning process of chemical fibre industry, its filter assemblies used, such as web plate, filtration core etc., have at filter process
A lot of plastics lumps gather on filter assemblies so that crossed assembly blocking, needed to be replaced, and the filter assemblies after changing
Need to remove plastics lumps through high-temperature calcination, and calcination process can produce substantial amounts of dust and harmful gas such as VOC, non-first
The gases such as alkane total hydrocarbon, volatility low molecule organic matter；Can not directly be thrown in air, if directly environment can be caused by discharge
Pollute greatly.
At present, main processing mode is to use water ring vacuum pump the aqueous vapor after calcining to be evacuated to together in collecting pond, converges
Added with lid above Ji Chi, then directly it is evacuated to absorbent charcoal adsorber with blower fan；Use above-mentioned this processing mode, can make to give up
In gas, substantial amounts of dust is directly adsorbed on the activated carbon of absorbent charcoal adsorber, causes activated carbon to use the time short, absorption effect
Rate is poor, and operating cost is higher.
Summary of the invention
The present invention is directed to the above-mentioned deficiency of prior art, it is provided that one can efficiently separate dust and volatile organic matter, no
Can cause a large amount of dust of activated carbon adsorption, improve adsorption efficiency and the service life of activated carbon, the process reducing operating cost is true
The device of empty calcining waste gas.
In order to solve above-mentioned technical problem, the technical solution used in the present invention is: a kind of dress processing vacuum calcining waste gas
Putting, this device includes moisture trap, scrubbing tower and absorbent charcoal adsorber；It is provided with first on described moisture trap to enter
QI KOU is provided with, with the first gas outlet, lower end, the discharge outlet connected with collecting-tank；The sidewall of described scrubbing tower is provided with second
Air inlet, upper end is provided with the second gas outlet；The side of described absorbent charcoal adsorber is provided with the 3rd air inlet, and top sets
It is equipped with the 3rd gas outlet；The first described air inlet is connected with calciner emission discharge duct and is connected on pipeline and is provided with
Water ring vacuum pump, the first described gas outlet is connected by pipeline with the second air inlet, described the second gas outlet and the 3rd
Air inlet is connected by pipeline and is provided with blower fan on interconnective pipeline.
Using said structure, the waste gas after calcining is not directly to enter in absorbent charcoal adsorber, but is introduced into
Moisture trap, the dust in this process waste gas is separated by water, is flowed in collecting-tank then decontaminated water treating stations with water,
This process can remove a large amount of dust；Then gas enters into the second air inlet of scrubbing tower after the first gas outlet is out, should
Process so that gas is also deposited big fraction dust and volatility low molecule organic matter, by washing after dust and molten water
Property organic matter removal falls；Then gas enters into activated carbon suction through the second gas outlet of scrubbing tower through the effect of centrifugal blower
In adsorption device, after the effect of activated carbon, the organic gas containing VOC, NMHC is removed by activated carbon adsorption,
Clearance more than 75%, and too much dust will not be adhered to.By the exhaust device of the present invention, activated carbon can be used the longevity
Life can increase by 500 above, greatly reduces production cost.
As preferably, described moisture trap is provided with multiple, and multiple moisture traps are arranged side by side, and each air water divides
The first air inlet and a water ring vacuum pump on device are connected；It is provided with multiple on described calciner emission discharge duct
Exhaust branch pipe in parallel, each exhaust branch pipe correspondence connects a water ring vacuum pump；On each moisture trap first is given vent to anger
Mouth is connected with the second air inlet of scrubbing tower by total pipeline, and the discharge outlet on each moisture trap passes through main sewer road
It is connected with collecting-tank；Use said structure, can use multiple moisture trap that waste gas is separated, improve dust with
The separation efficiency of gas and dust removal amount.
As preferably, described scrubbing tower is positioned at top and is provided with except mist packing layer, except the lower section of mist packing layer is provided with
Spraying layer and hollow ball packing layer, described spraying layer and hollow ball packing layer are two-layer and alternately arranged；Use this structure
Can ensure that raising dust and water soluble organic substance removal efficiency and removal amount, remove compared to single spraying layer and packing layer
Effect is more preferable, removal the most thorough.
As further preferably, the described thickness except mist packing layer is 120-160mm, and the thickness of hollow ball packing layer is
180-240mm；Preferably, the described thickness except mist packing layer is 150mm, and the thickness of hollow ball packing layer is 200mm.
As preferably, being provided with Honeycomb-type activated layer of charcoal in described absorbent charcoal adsorber, described is Honeycomb-type activated
The thickness of carbon-coating is 450-550mm, a diameter of 1300-1600mm.This structure is used can effectively to go removing exhaust gas contains
VOC, the organic gas of NMHC, clearance more than 75%, and too much dust will not be adhered to.Further, described
The thickness of Honeycomb-type activated carbon-coating be 500mm, a diameter of 1500mm
The present invention also provides for the processing method of the device of a kind of above-mentioned process vacuum calcining waste gas, and concrete steps include:
(1) first, under the effect of water ring vacuum pump, it is incorporated into aerofluxus from calciner emission discharge duct waste gas out
Arm, through vacuum cycle pump enter into the first air inlet then into moisture trap in separate, the water after separation
Entering into collecting-tank after discharge outlet is pooled to main sewer road, gas then enters total pipeline after the first gas outlet is gone out, so
Gas in rear total pipeline enters into scrubbing tower through the second air inlet；
(2) gas entering into scrubbing tower runs from the bottom up, and shower water runs from top to bottom, thus water, gas are abundant
Contact, it is achieved the washing to gas, the second exhaust port from scrubbing tower top of the gas after washing is discharged through piping, at blower fan
Effect under be incorporated into absorbent charcoal adsorber, be then passed through active carbon layer absorption after from the 3rd gas outlet connection pipeline row
Go out.
Total pipeline and the caliber of calciner emission discharge duct described in step of the present invention (1) are 180-220mm, are preferably
200mm。
The caliber of the pipeline described in step of the present invention (2) is 180-220mm, preferably 200mm.
Waste gas flow velocity in inventive pipeline is 2500-3500m3/ h, preferably 3000m3/h。
It is high that the above-mentioned method of the present invention has clearance, can realize dust and be sufficiently separated with gas, making of prolongation activated carbon
With the life-span, reduce the harmful substance contents of discharge gas, improve the purpose of environment.
Accompanying drawing explanation
Accompanying drawing 1 apparatus of the present invention structural representation.
The top view structural representation that accompanying drawing 2 moisture trap of the present invention is connected with the exhausting waste gas pipeline of calcining.
Accompanying drawing 3 scrubbing tower of the present invention sectional view structural representation.
Accompanying drawing 4 absorbent charcoal adsorber of the present invention sectional view structural representation.
The moisture trap structural representation that accompanying drawing 5 present invention is single.
Detailed description of the invention
Describe the present invention in detail below by specific embodiment, but the present invention is not limited solely to following example.
As shown in Figure 1: a kind of device processing vacuum calcining waste gas of the present invention, this device include moisture trap 1,
Scrubbing tower 2 and absorbent charcoal adsorber 3；The first air inlet 1.1 and the first gas outlet it is provided with on described moisture trap 1
1.2 (as shown in Figure 5: the first air inlet is arranged at the sidewall of moisture trap, the first gas outlet is arranged at moisture trap
Upper end), lower end be provided with the discharge outlet 1.3 connected with collecting-tank 4；The sidewall of described scrubbing tower is provided with the second air inlet
2.1, upper end is provided with the second gas outlet 2.2；The side of described absorbent charcoal adsorber is provided with the 3rd air inlet 3.1, on
Portion is provided with the 3rd gas outlet 3.2；The first described air inlet is connected with the exhausting waste gas pipeline 5 of calcining and is connected pipeline
On be provided with water ring vacuum pump 6, the first described gas outlet is connected by pipeline with the second air inlet, and described second is given vent to anger
Mouthful it is connected by pipeline with the 3rd air inlet and on interconnective pipeline, is provided with blower fan 7.
Using said structure, the waste gas after calcining is not directly to enter in absorbent charcoal adsorber, but is introduced into
Moisture trap, the dust in this process waste gas is separated by water, is flowed in collecting-tank then decontaminated water treating stations with water,
This process can remove a large amount of dust；Then gas enters into the second air inlet of scrubbing tower after the first gas outlet is out, should
Process so that the fraction dust that there is also in gas and volatility low molecule organic matter, by after washing dust and molten
Aqueous organic is got rid of；Then gas through the second gas outlet of scrubbing tower blower fan (such as centrifugal blower) effect enter
In absorbent charcoal adsorber, after the effect of activated carbon, the organic gas containing VOC, NMHC is inhaled by activated carbon
Attached removed, clearance more than 75%, and too much dust on activated carbon, will not be adhered to.Filled by the waste gas of the present invention
Put, can activated carbon can be increased by 500 above service life, greatly reduce production cost.
As shown in accompanying drawing 1,2 and 5: moisture trap of the present invention is provided with multiple, the present embodiment specifically can set
Putting four, four moisture traps are arranged side by side, the first air inlet on each moisture trap and a water ring vacuum pump phase
Connect；Being provided with the exhaust branch pipe 5.1 of multiple parallel connection on the exhausting waste gas pipeline of described calcining, each exhaust branch pipe correspondence is even
(the first air inlet on the most each exhaust branch pipe and each moisture trap directly passes through Water-ring vacuum to connect a water ring vacuum pump
Pump connects)；The first gas outlet on each moisture trap is connected, often with the second air inlet of scrubbing tower by total pipeline 8
Discharge outlet on individual moisture trap is connected with collecting-tank by main sewer road 9；Use said structure, it is possible to achieve simultaneously
Use multiple moisture trap that waste gas is separated, improve dust and the separation efficiency of gas and dust removal amount.
As described in accompanying drawing 3: as described in scrubbing tower be positioned at top and be provided with except mist packing layer 2.3, except the lower section of mist packing layer
It is provided with spraying layer 2.4 and hollow ball packing layer 2.5, described spraying layer and hollow ball packing layer be two-layer and alternately arrange
Row；This structure is used to can ensure that raising dust and water soluble organic substance removal efficiency and removal amount, compared to single spray
Layer and packing layer removal effect are more preferable, removal the most thorough.The described thickness except mist packing layer is 120-160mm, empty
The thickness of bulbus cordis packing layer is 180-240mm；The thickness except mist packing layer described in the present embodiment is 150mm, hollow ball filler
The thickness of layer is 200mm.
As shown in Figure 4: in described absorbent charcoal adsorber, be provided with Honeycomb-type activated charcoal (Alveolate activated carbon) layer
3.3, the thickness of described Honeycomb-type activated carbon-coating is 450-550mm, a diameter of 1300-1600mm.This structure is used to have
The VOC going to contain in removing exhaust gas of effect, the organic gas of NMHC, clearance more than 75%, and will not adhere to too much
Dust.The thickness of the Honeycomb-type activated carbon-coating described in the present embodiment is 500mm, a diameter of 1500mm.
The present invention utilizes the method for the device of above-mentioned process vacuum calcining waste gas, and concrete steps include:
(1) first, under the effect of water ring vacuum pump, it is incorporated into from vacuum calcining furnace exhaust discharge duct waste gas out
Exhaust branch pipe, through vacuum cycle pump enter into the first air inlet then into moisture trap in separate, after separation
Water after discharge outlet is pooled to main sewer road, enter into collecting-tank, gas then after the first gas outlet is gone out enter house steward
Road, then the gas in total pipeline enters into scrubbing tower through the second air inlet；
(2) gas entering into scrubbing tower runs from the bottom up, and shower water runs from top to bottom, thus water, gas are abundant
Contact, it is achieved the washing to gas, the second exhaust port from scrubbing tower top of the gas after washing is discharged through piping, at blower fan
Effect under be incorporated into absorbent charcoal adsorber, be then passed through active carbon layer absorption after from the 3rd gas outlet connection pipeline row
Go out.
The caliber of the total pipeline described in step of the present invention (1) is 200mm.The caliber of the pipeline described in step of the present invention (2)
For 200mm.Waste gas flow velocity in inventive pipeline is 3000m3/h。
By the structures and methods that the present invention is above-mentioned, after treatment, from absorbent charcoal adsorber gas out
Clearance containing VOC, the organic gas of NMHC reaches 90%；And the dust content clearance in gas also reaches 90%
Left and right, the replacing construction of activated carbon extends to original 5 times, substantially increases service efficiency, extends service life, reduction
Production cost, what is more important effectively eliminates pollutant simultaneously, reduces the discharge capacity of harmful substance, optimizes the environment.
Alveolate activated carbon of the present invention, all uses commercially available prod except mist filler etc..
Claims (10)
1. the device processing vacuum calcining waste gas, it is characterised in that: this device includes moisture trap, scrubbing tower and activity
Charcoal adsorbent equipment；It is provided with the first air inlet on described moisture trap and the first gas outlet, lower end are provided with and collecting-tank
The discharge outlet of connection；The sidewall of described scrubbing tower is provided with the second air inlet, and upper end is provided with the second gas outlet；Described work
The side of property charcoal adsorbent equipment is provided with the 3rd air inlet, and top is provided with the 3rd gas outlet；The first described air inlet with forge
Burning furnace exhaust discharge duct is connected and connects and is provided with water ring vacuum pump on pipeline, and the first described gas outlet is entered with second
QI KOU is connected by pipeline, and the second described gas outlet is connected and interconnective pipe by pipeline with the 3rd air inlet
Blower fan it is provided with on road.
The device of process vacuum calcining waste gas the most according to claim 1, it is characterised in that: described moisture trap sets
Being equipped with multiple, multiple moisture traps are arranged side by side, the first air inlet on each moisture trap and a water ring vacuum pump
It is connected；Being provided with the exhaust branch pipe of multiple parallel connection on described calciner emission discharge duct, each exhaust branch pipe correspondence is even
Connect a water ring vacuum pump；The first gas outlet on each moisture trap is by the second air inlet phase of total pipeline with scrubbing tower
Connection, the discharge outlet on each moisture trap is connected with collecting-tank by main sewer road.
The device of process vacuum calcining waste gas the most according to claim 1, it is characterised in that: in upper in described scrubbing tower
Portion is provided with except mist packing layer, except the lower section of mist packing layer is provided with spraying layer and hollow ball packing layer, described spraying layer and
Hollow ball packing layer is two-layer and alternately arranged.
The device of process vacuum calcining waste gas the most according to claim 3, it is characterised in that: described except mist packing layer
Thickness is 120-160mm, and the thickness of hollow ball packing layer is 180-240mm.
The device of process vacuum calcining waste gas the most according to claim 1, it is characterised in that: described activated carbon adsorption dress
Being provided with Honeycomb-type activated layer of charcoal in putting, the thickness of described Honeycomb-type activated carbon-coating is 450-550mm, a diameter of 1300-
1600mm。
6. one kind utilizes the method that the device processing vacuum calcining waste gas processes waste gas, it is characterised in that: concrete steps include:
(1) first, under the effect of water ring vacuum pump, it is incorporated into aerofluxus from calciner emission discharge duct waste gas out and props up
Pipe, through vacuum cycle pump enter into the first air inlet then into moisture trap in separate, the water after separation from
Discharge outlet enters into collecting-tank after being pooled to main sewer road, gas then enters total pipeline after the first gas outlet is gone out, then
Gas in total pipeline enters into scrubbing tower through the second air inlet；
(2) gas entering into scrubbing tower runs from the bottom up, and shower water runs from top to bottom, thus water, gas are fully contacted,
Realizing washing to gas, the second exhaust port from scrubbing tower top of the gas after washing is discharged through piping, at the work of blower fan
Being incorporated into absorbent charcoal adsorber under with, after being then passed through active carbon layer absorption, the pipeline from the 3rd gas outlet connection is discharged.
Utilization the most according to claim 6 processes the method that the device of vacuum calcining waste gas processes waste gas, it is characterised in that:
Total pipeline and the caliber of calciner emission discharge duct described in step (1) are 180-220mm.
Utilization the most according to claim 6 processes the method that the device of vacuum calcining waste gas processes waste gas, it is characterised in that:
The caliber of the pipeline described in step (2) is 180-220mm.
Utilization the most according to claim 6 processes the method that the device of vacuum calcining waste gas processes waste gas, it is characterised in that:
Waste gas flow velocity in pipeline is 2500-3500m3/h。
Utilization the most according to claim 9 processes the method that the device of vacuum calcining waste gas processes waste gas, and its feature exists
In: the waste gas flow velocity in pipeline is 3000m3/h。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610687557.6A CN106310867A (en) | 2016-08-17 | 2016-08-17 | Device for treating vacuum calcining waste gas and treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610687557.6A CN106310867A (en) | 2016-08-17 | 2016-08-17 | Device for treating vacuum calcining waste gas and treatment method |
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| CN106310867A true CN106310867A (en) | 2017-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610687557.6A Pending CN106310867A (en) | 2016-08-17 | 2016-08-17 | Device for treating vacuum calcining waste gas and treatment method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107511017A (en) * | 2017-09-26 | 2017-12-26 | 中盐昆山有限公司 | Soda manufacture calcination process suction dust collecting device and dust collecting process |
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| CN101125651A (en) * | 2007-06-05 | 2008-02-20 | 浙江大学 | Method for reclaiming carbon dioxide from tail gas of calcium formate producing process |
| CN201978626U (en) * | 2011-02-19 | 2011-09-21 | 本松工程塑料（杭州）有限公司 | Exhaust gas and dust processing system in plastic-rubber modifying industry |
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Application publication date: 20170111 |