CN106237774A - Honeycomb turbulent ball type urea dust recovery device and recovery method thereof - Google Patents
Honeycomb turbulent ball type urea dust recovery device and recovery method thereof Download PDFInfo
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- CN106237774A CN106237774A CN201610808347.8A CN201610808347A CN106237774A CN 106237774 A CN106237774 A CN 106237774A CN 201610808347 A CN201610808347 A CN 201610808347A CN 106237774 A CN106237774 A CN 106237774A
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- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 488
- 239000000428 dust Substances 0.000 title claims abstract description 284
- 239000004202 carbamide Substances 0.000 title claims abstract description 248
- 238000011084 recovery Methods 0.000 title claims abstract description 114
- 238000000034 method Methods 0.000 title claims abstract description 23
- 239000007788 liquid Substances 0.000 claims abstract description 405
- 238000005406 washing Methods 0.000 claims abstract description 216
- 239000007921 spray Substances 0.000 claims abstract description 192
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 146
- 230000000694 effects Effects 0.000 claims abstract description 58
- 238000005469 granulation Methods 0.000 claims abstract description 21
- 230000003179 granulation Effects 0.000 claims abstract description 21
- 238000009423 ventilation Methods 0.000 claims abstract description 17
- 210000002700 urine Anatomy 0.000 claims abstract description 14
- 238000004519 manufacturing process Methods 0.000 claims abstract description 8
- 235000013877 carbamide Nutrition 0.000 claims description 240
- 230000001869 rapid Effects 0.000 claims description 64
- 230000004087 circulation Effects 0.000 claims description 51
- 239000002245 particle Substances 0.000 claims description 48
- 239000006210 lotion Substances 0.000 claims description 45
- 239000012530 fluid Substances 0.000 claims description 42
- 239000004743 Polypropylene Substances 0.000 claims description 40
- -1 polypropylene Polymers 0.000 claims description 40
- 229920001155 polypropylene Polymers 0.000 claims description 40
- 239000007787 solid Substances 0.000 claims description 39
- 239000002699 waste material Substances 0.000 claims description 18
- 239000000945 filler Substances 0.000 claims description 15
- 239000008187 granular material Substances 0.000 claims description 14
- 230000000630 rising effect Effects 0.000 claims description 14
- 238000001802 infusion Methods 0.000 claims description 12
- 239000000463 material Substances 0.000 claims description 12
- 230000009469 supplementation Effects 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 11
- 239000000843 powder Substances 0.000 claims description 7
- 230000001413 cellular effect Effects 0.000 claims description 6
- 238000009826 distribution Methods 0.000 claims description 6
- 239000012528 membrane Substances 0.000 claims description 6
- 230000004089 microcirculation Effects 0.000 claims description 6
- 230000003020 moisturizing effect Effects 0.000 claims description 6
- 238000001179 sorption measurement Methods 0.000 claims description 6
- 239000003643 water by type Substances 0.000 claims description 5
- 241000521257 Hydrops Species 0.000 claims description 3
- 206010030113 Oedema Diseases 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 2
- 238000005507 spraying Methods 0.000 abstract description 3
- 238000009825 accumulation Methods 0.000 abstract 1
- 239000008188 pellet Substances 0.000 description 7
- 239000001913 cellulose Substances 0.000 description 4
- 229920002678 cellulose Polymers 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 150000001336 alkenes Chemical class 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/40—Combinations of devices covered by groups B01D45/00 and B01D47/00
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
- C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
- C07C273/14—Separation; Purification; Stabilisation; Use of additives
- C07C273/16—Separation; Purification
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention belongs to a honeycomb turbulent ball type urea dust recovery device and a recovery method thereof; the device comprises a urea dust recovery device shell with a large middle and small two ends, wherein the bottom of the urea dust recovery device shell is connected with a dust-containing gas outlet at the top of a urea granulation tower, a primary gas-lifting liquid loading device is arranged at the inner lower part of the urea dust recovery device shell, and a primary corrugated plate guide strip, a honeycomb turbulent ball type dust remover device, a primary spray water washing layer and a secondary spray water washing layer are sequentially arranged in the middle of the urea dust recovery device shell from bottom to top; the upper part of the urea dust recovery device shell is sequentially provided with a second-stage air-lift liquid accumulation device, a third-stage spraying water washing layer, a fourth-stage spraying water washing layer, a second-stage corrugated plate guide strip and a ventilation device from bottom to top; the method has the advantages of simple and convenient operation, low manufacturing cost, obvious dust removal effect and high solution utilization rate, and simultaneously, the method is combined with a urine concentration device, and the discharge amount of dust at the outlet can be obtained below the national standard.
Description
Technical field
The invention belongs to urea dust recovery device technical field, be specifically related to a kind of honeycomb rapids ball carbamide dust and reclaim
Device and recovery method thereof.
Background technology
Urea prilling tower, during running, inevitably produces dust, and granulation tower produces the dense of dust simultaneously
Degree increases along with production-scale expansion, and not only the atmospheric environment on surrounding creates impact, also results in urea product simultaneously
A large amount of losses.The main cause producing dust is: during urea synthesis, the concentration of carbamide steam and condensation；Shower nozzle is grasped
Make state abnormal and produce；Various mechanical forces crush, when as at the bottom of tower, scraper rotates, broken, granule before cooling after and tower
Collision between wall or granule, waits and the urea powder that produces.Current dust of urea granulation has been put into country and must administer
One of environmental protection project.Existing recovery method is broadly divided into dry and wet.Utilize carbamide to have character soluble in water, pass
The hydrometallurgic recovery device of system has following three kinds: spraying, three sections of water washing dedust systems, liquid gas jet systems.These recovery methods are deposited
Increasing the resistance of system, the urine recovery difficult of collection is bigger than normal, and outlet dust emission is unable to reach national standard 30mg/ simultaneously
m3Following defect.
Summary of the invention
It is an object of the invention to overcome defect of the prior art, it is provided that a kind of water consumption is low, efficiency of dust collection is high, reaching
A kind of honeycomb rapids ball urea dust recovery device of the discharge standard that can be up to state standards while recovery dust purpose
And recovery method.
The object of the present invention is achieved like this: include urea dust recovery device housing small in ends broad in the middle, institute
The dusty gas outlet of the bottom and carbamide granulation top of tower of stating urea dust recovery device housing is connected, described carbamide dust
The interior bottom of retracting device housing is provided with one-level and rises QI-mass liquid device, and the middle part of urea dust recovery device housing is from the bottom to top
It is disposed with one-level corrugated sheet flow guide bar, honeycomb rapids ball dust catcher device, one-level spray washing layer, two grades of spray washings
Layer；The top of described urea dust recovery device housing is disposed with two grades from the bottom to top and rises QI-mass liquid device, three grades of sprays
Washing layer, level Four spray washing layer, secondary wave shape plate flow guide bar and ventilation unit；Described urea dust recovery device housing and one
Level rises and offers one-level liquid outlet on the position that a side lower part of QI-mass liquid device is corresponding；Described urea dust recovery device shell
Body and two grades rise and offer two grades of liquid outlets on the position that a side lower part of QI-mass liquid device is corresponding；Described one-level liquid outlet and
Two grades of liquid outlets reclaim circulation fluid system with carbamide dust respectively and are connected, and carbamide dust reclaims circulation fluid system and sprays with one-level respectively
Trickle washes layer, two grades of spray washing layers, three grades of spray washing layers, level Four spray washing layers are connected with urea solution concentrating device.
Preferably, described carbamide dust reclaims circulation fluid system and includes primary cycle reservoir and secondary cycle reservoir,
One-level liquid outlet is connected with the top inlet of primary cycle reservoir by pipeline, going out bottom described primary cycle reservoir
Liquid mouth is connected with urea solution concentrating device inlet by the first valve, and described primary cycle reservoir top liquid return hole passes through
Second valve is connected with the liquid outlet bottom secondary cycle reservoir, and the circulation fluid mouth of described primary cycle reservoir side passes through
Filter, one-stage water wash circulating pump, the first threeway, the second threeway are connected with the 3rd threeway, the second end of described 3rd threeway with
One-level spray washing layer is connected, and the 3rd end and two grades of spray washing layers of the 3rd threeway are connected, and the 3rd end of the second threeway passes through
4th threeway is connected with moisturizing pipeline, and the 3rd end of described first threeway is by the 3rd valve and urea solution concentrating device feed liquor
Mouth is connected；3rd end of the 4th threeway is connected with the fluid infusion mouth of secondary cycle reservoir side by the 4th valve, described two grades
The circulation fluid mouth of circulation reservoir opposite side is connected by two grades of water washing cycles pumps and the 5th threeway, the second end of the 5th threeway with
Three grades of spray washing layers are connected, and the 3rd end of the 5th threeway is connected with level Four spray washing layer；Described two grades of liquid outlets are by pipe
Road is connected with the inlet at secondary cycle reservoir top.
Preferably, described one-level rises QI-mass liquid device and two grades and rises QI-mass liquid device and be a liter QI-mass liquid device, described liter
QI-mass liquid device includes drip tray, and drip tray offers several liter of gas passage, and the top of several liter of gas passage sets respectively
There is a liter gas cap.
Preferably, described one-level corrugated sheet flow guide bar is arranged in order by several one-level deflection plates and constitutes, adjacent two
Distance between one-level deflection plate is 40～48mm, and the height of one-level deflection plate is 320～360mm, described one-level deflection plate
Material is superpower polypropylene；Secondary wave shape plate flow guide bar is arranged in order by several two grades of deflection plates and constitutes, adjacent two two
Distance between level deflection plate is 24～32mm, and the height of two grades of deflection plates is 450～490mm, the material of described two grades of deflection plates
Matter is superpower polypropylene.
Preferably, described honeycomb rapids ball dust catcher device includes the polypropylene sieve plate being located at bottom and is located at polypropylene sieve
The polypropylene partition panel on plate top, if cellular polypropylene partition panel is internally provided with dried layer solid filler layers of balls, if described
A diameter of 45～55mm of solid filling ball in dried layer solid filler layers of balls, described solid filling ball is solid polypropylene filler
Ball.
Preferably, described ventilation unit is propeller fan.
Preferably, the 5th valve, the 3rd end of the second threeway and the 4th it are provided with between described first threeway and the second threeway
It is provided with the 6th valve between threeway, between the second end and the one-level spray washing layer of the 3rd threeway, is provided with the 7th valve, the three or three
Be provided with the 8th valve between logical the 3rd end and two grades of spray washing layers, the second end of the 5th threeway and three grades of spray washing layers it
Between be provided with the 9th valve, be provided with the tenth valve between the 3rd end and the level Four spray washing layer of the 5th threeway.
Preferably, described one-level spray washing layer and two grades of spray washing layers are respectively equipped with eddy spray head；Three grades of sprays
Trickle is washed and is respectively equipped with solid cone shaped shower nozzle on layer and level Four spray washing layer.
Preferably, described primary cycle reservoir and secondary cycle reservoir top are provided with primary cycle reservoir air vent
With secondary cycle reservoir air vent.
The recovery method of a kind of honeycomb rapids ball urea dust recovery device, comprises the steps:
Step one: in granulation workshop, the gas containing carbamide dust in the dusty gas outlet of carbamide granulation top of tower leads to
Crossing stack effect and enter the bottom of urea dust recovery device housing, the gas containing carbamide dust rises QI-mass liquid device through one-level
Entering the flared region of urea dust recovery device housing central section, the gas flow rate containing carbamide dust is by original 5.5～6.5m/
S is reduced to 3.5～4.5m/s；
Step 2: flow velocity described in step one is reduced to the gas containing carbamide dust of 3.5～4.5m/s and passes sequentially through one
Level corrugated sheet flow guide bar and honeycomb rapids ball dust catcher device, the gas containing carbamide dust is logical in the gap of one-level deflection plate
Cross, and laterally enter in honeycomb rapids ball dust catcher device, the big particle diameter dust granules of more than 100um with airflow collision at filler
Ball surface, the gap between dusty gas streams by filling ball simultaneously, there is the change of 8～10 times in direction, gas is uniform
It is distributed in honeycomb rapids ball dust catcher device, simultaneously under the effect of gas flow rate, filling ball generation rotation phenomenon, make dust-laden
Gas forms several microcirculations around filling ball；
Step 3: described in step 2, the gas containing carbamide dust is removed by one-level corrugated sheet flow guide bar and honeycomb rapids ball
While dirt device device, under the effect of one-stage water wash circulating pump, by one-stage water wash liquid by one from primary cycle reservoir
Level water washing cycles pump, the first threeway, the second threeway and the 3rd threeway respectively enter one-level spray washing layer and two grades of spray washings
In layer, one-stage water wash liquid is contacted with the back flow of gas containing carbamide dust by the ejection of eddy current shape shower nozzle, simultaneously in the effect of hydraulic pressure
Under, striking filling ball surface, make filling ball beat and turbulent flow, water lotion forms uniform liquid on lower floor's filling ball surface
Film, liquid film has adsorbed 30% and has been centered around the carbamide dust of 50～100um in filling ball ambient gas；
Step 4: gas containing carbamide dust described in step 3 continuously the most from bottom to top by filling ball, one-stage water wash
Liquid passes through filling ball continuously, due to the common effect of hydraulic pressure and air pressure, at the of honeycomb rapids ball dust catcher device
Defining the air bubble liquid-membrane that a layer height is 50～60mm above one layer of filling ball, the gas containing carbamide dust breaks through after liquid film 55
～the dust-laden granule of 65% is adsorbed, final step water lotion acts on whereabouts, to lower floor's filling ball surface at self gravitation
Wash, remove the dust of lower floor's filling ball surface adsorption, then by the deflection plate gap of one-level corrugated sheet flow guide bar, fall
Enter in the catch tray of one-level liter QI-mass liquid device and collect；
Step 5: fall into one-level described in step 4 and rise the one-stage water wash liquid in QI-mass liquid device catch tray, along with liquid level
Increase, enter in primary cycle reservoir from one-level liquid outlet, when the concentration of one-stage water wash liquid reaches 7.0%～8.0%,
Open the first valve of primary cycle reservoir bottom, make the one-stage water wash liquid of 7.0%～8.0% enter urea liquid concentration dress
Put and reclaimed by subsequent production device；
Step 6: by rapid ball dust catcher device, one-level spray washing layer and two grades of spray washings described in step 4
The gas containing carbamide dust of layer becomes band liquid gas, and band liquid gas enters the reducing of urea dust recovery device housing middle and upper part
Region, now band liquid gas flow rate is increased to 4.5～5.0m/s by original 3.5～4.5m/s；
Step 7: the band liquid gas in the reducing region entering urea dust recovery device housing middle and upper part described in step 6 enters
Entering in two grades of liter gas passages rising QI-mass liquid device, in band liquid gas, the droplet impact of big particle diameter rises QI-mass liquid device to two grades
Rising gas cap bottom, the drop forming liquid film or bigger particle diameter falls, and enters the circulation of one-stage water wash circulation fluid；Described risen by two grades
After QI-mass liquid device, the dust content in band liquid gas have dropped 80%～85%, and the dust size distribution in band liquid is
30～70um, flow velocity is 4.5m/s～5.0m/s；
Step 8: two grades of water lotions in secondary cycle reservoir, under the effect of two grades of water washing cycles pumps, are followed by two grades
Ring reservoir is connected with three grades of spray washing layers and level Four spray washing layer respectively by two grades of water washing cycles pumps and the 5th threeway,
Two grades of water lotions fill shower nozzle by solid vertebra and are atomized into the droplet of 20～80um, and substantial amounts of droplet is logical with described in step 7
Cross two grades of 30～70um particle diameter dust risen in QI-mass liquid device band liquid gas to rise QI-mass liquid device top at two grades and collide
With contact, under the effect of surface tension of liquid and dust-charge, the dust of small particle is wrapped up by droplet, then grows up
To the big drop that particle diameter is more than 100um, fall in two grades of drip tray rising QI-mass liquid device acting on of liquid deadweight, logical
Cross two grades of liquid outlets and enter secondary cycle reservoir, when the concentration of two grades of water lotions in secondary cycle reservoir reaches 4.0%
～when 5.0%, open the second valve of secondary cycle reservoir bottom, make two grades of water lotions of 4.0%～5.0% enter one-level
Circulation reservoir, the fluid infusion as primary cycle reservoir uses；
Step 9: in secondary cycle reservoir described in step 8, two grades of water lotions entrance one-levels of 4.0%～5.0% are followed
After ring reservoir, pressure is that the carbamide waste stripping liquid of 0.70～0.80MPa is by making in liquid supplementation pipe entrance secondary cycle reservoir
It is that two grades of water lotions use；In described carbamide waste stripping liquid, the proportion of urine is 0%, and temperature is 80～95 DEG C；
Step 10: the band liquid gas in step 8 is by 96-97% after three grades of spray washing layers and level Four spray washing layer
Dust absorbed and removed, band liquid gas flow rate is down to 2.0m/s～3.0m/s, now with the band liquid gas of a large amount of drops
Entering in the gap of two grades of deflection plates, the adjacent distance between two two grades of deflection plates is 24～32mm, due to adjacent two
Gap between individual two grades of deflection plates is little, band liquid gas flow rate raise, the drop of small particle under the effect of inertia by two grades of foldings
The turning trapping of stream plate, the drop forming big particle diameter falls in two grades of drip tray rising QI-mass liquid device；
Step 11: by the band liquid gas of three grades of spray washing layers and level Four spray washing layer 96 described in step 8
～the dust of 97% is absorbed and is removed；By in band liquid gas after secondary wave shape plate flow guide bar 80～90% in described step 10
Drop be removed, become by the band liquid gas after secondary wave shape plate flow guide bar and can discharge gas, now can discharge gas
Flow velocity is dropped to 1.5m/s～2.0m/s by 2.0m/s～3.0m/s, can discharge gas under the effect of ventilation unit axial flow blower
Flow velocity is discharged by dusty gas outlet after rising to 4.0～5.0m/s；
Step 12: when carbamide concentration unit can not use and the concentration of primary cycle reservoir one-stage water wash liquid reaches
When 7.0%～8.0%, closing the 4th valve, open the 6th valve, making pressure described in step 9 is 0.70～0.80MPa
Carbamide waste stripping liquid enters one-level spray washing layer and two grades of sprays by liquid supplementation pipe, the 4th threeway, the 6th valve and the second threeway
Trickle is washed in layer, recycles as one-stage water wash liquid.
The present invention is easy and simple to handle, and cost of manufacture is on the low side, and dust removing effects is obvious, and solution utilization rate is high, carries in combination with urine
Dense device, outlet dust discharge amount can obtain below national Specification.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the top view of honeycomb rapids ball dust catcher device in the present invention.
Fig. 3 is the upward view that in the present invention, one-level rises QI-mass liquid device.
Detailed description of the invention
In order to technical characteristic, purpose and the effect of invention are more clearly understood from, the now comparison accompanying drawing explanation present invention
Detailed description of the invention, the most identical label represents identical parts.For making simplified form, in each figure only schematically
Indicate part related to the present invention, they do not represent its practical structures as product.
As shown in Figure 1, 2, 3, the present invention is a kind of honeycomb rapids ball urea dust recovery device and recovery method thereof, including
Urea dust recovery device housing 7 small in ends broad in the middle, the bottom of described urea dust recovery device housing 7 and carbamide granulation
The dusty gas outlet 28 of top of tower is connected, and the interior bottom of described urea dust recovery device housing 7 is provided with one-level and rises gas
Hydrops device 1, the middle part of urea dust recovery device housing 7 is disposed with one-level corrugated sheet flow guide bar 2, honeycomb from the bottom to top
Rapid ball dust catcher device 3,14, two grades of spray washing layer 15 of one-level spray washing layer；Described urea dust recovery device housing 7
Top be disposed with from the bottom to top two grades rise 4, three grades of spray washing layers 16 of QI-mass liquid device, level Four spray washing layer 17,
Secondary wave shape plate flow guide bar 5 and ventilation unit 6；Described urea dust recovery device housing 7 rises the one of QI-mass liquid device 1 with one-level
One-level liquid outlet 31 is offered on the position that side lower part is corresponding；Described urea dust recovery device housing 7 and two grades rise QI-mass
Two grades of liquid outlets 32 are offered on the position that one side lower part of liquid device 4 is corresponding；Described one-level liquid outlet 31 and two grades go out liquid
Mouthfuls 32 reclaim circulation fluid system with carbamide dust respectively is connected, carbamide dust recovery circulation fluid system respectively with one-level spray washing
Layer 15, three grades of spray washing layer 16 of 14, two grades of spray washing layers, level Four spray washing layer 17 and urea solution concentrating device 13 phase
Even.Described carbamide dust reclaims circulation fluid system and includes primary cycle reservoir 10 and secondary cycle reservoir 8, one-level liquid outlet
31 are connected with the top inlet of primary cycle reservoir 10 by pipeline, the liquid outlet bottom described primary cycle reservoir 10
Being connected with urea solution concentrating device 13 inlet by the first valve 27, described primary cycle reservoir 10 top liquid return hole leads to
Cross the second valve 26 to be connected with the liquid outlet bottom secondary cycle reservoir 8, the circulation of described primary cycle reservoir 10 side
Liquid mouth is connected with the 3rd threeway 35 by filter 11, the 12, first threeway the 33, second threeway 34 of one-stage water wash circulating pump, described
Second end of the 3rd threeway 35 is connected with one-level spray washing layer 14, the 3rd end of the 3rd threeway 35 and two grades of spray washing layers 15
Being connected, the 3rd end of the second threeway 34 is connected with moisturizing pipeline 37 by the 4th threeway 36, the 3rd end of described first threeway 33
It is connected with urea solution concentrating device 13 inlet by the 3rd valve 18；3rd end of the 4th threeway 36 passes through the 4th valve 20
Being connected with the fluid infusion mouth of secondary cycle reservoir 8 side, the circulation fluid mouth of described secondary cycle reservoir 8 opposite side passes through two grades
Water washing cycles pump 9 is connected with the 5th threeway 38, and the second end and three grades of spray washing layers 16 of the 5th threeway are connected, the 5th threeway 38
The 3rd end be connected with level Four spray washing layer 17；Described two grades of liquid outlets 32 are by pipeline and secondary cycle reservoir 8 top
Inlet be connected.Described one-level rises QI-mass liquid device 1 and two grades and rises QI-mass liquid device 4 and be a liter QI-mass liquid device, described liter
QI-mass liquid device includes drip tray 39, and drip tray 39 offers several liter of gas passage 40, the top of several liter of gas passage 40
Portion is respectively equipped with liter gas cap 41.Described one-level corrugated sheet flow guide bar 2 is arranged in order by several one-level deflection plates 42 and constitutes, adjacent
Two one-level deflection plates 42 between distance be 40～48mm, the height of one-level deflection plate 42 is 320～360mm, described one
The material of level deflection plate 42 is superpower polypropylene；Secondary wave shape plate flow guide bar 5 is arranged in order structure by several two grades of deflection plates 43
Becoming, the adjacent distance between two two grades of deflection plates 43 is 24～32mm, and the height of two grades of deflection plates 43 is 450～490mm,
The material of described two grades of deflection plates 43 is superpower polypropylene.Described honeycomb rapids ball dust catcher device 3 includes being located at the poly-of bottom
Propylene sieve plate 44 and the polypropylene partition panel 45 being located at polypropylene sieve plate 44 top, cellular polypropylene partition panel 45 is internal to be set
If being equipped with dried layer solid filler layers of balls 46, if a diameter of 45 of the solid filling ball in described dried layer solid filler layers of balls 46～
55mm, described solid filling ball is solid reclaimed polypropylene pellet.Described ventilation unit 6 is propeller fan.Described first threeway
33 and second are provided with the 5th valve 19 between threeway 34, are provided with the 6th valve between the 3rd end and the 4th threeway 36 of the second threeway 34
Door 21, is provided with the 7th valve 22 between the second end and the one-level spray washing layer 14 of the 3rd threeway 35, the 3rd of the 3rd threeway 35
Hold and be provided with the 8th valve 23 between two grades of spray washing layers 15, the second end of the 5th threeway 38 and three grades of spray washing layers 16 it
Between be provided with the 9th valve 24, be provided with the tenth valve 25 between the 3rd end and the level Four spray washing layer 17 of the 5th threeway 38.Described
It is respectively equipped with eddy spray head 47 on one-level spray washing layer 14 and two grades of spray washing layers 15；Three grades of spray washing layers 16 and four
It is respectively equipped with solid cone shaped shower nozzle 48 on level spray washing layer 17.Described primary cycle reservoir 10 and secondary cycle reservoir 8
Top is provided with primary cycle reservoir air vent 29 and secondary cycle reservoir air vent 30.
The recovery method of a kind of honeycomb rapids ball urea dust recovery device, this recovery method comprises the steps:
Step one: the gas containing carbamide dust in the dusty gas outlet 28 of carbamide granulation top of tower in granulation workshop
Entered the bottom of urea dust recovery device housing 7 by stack effect, the gas containing carbamide dust rises QI-mass liquid through one-level
Device 1 enters the flared region in the middle part of urea dust recovery device housing 7, and the gas flow rate containing carbamide dust is by original 5.5
～6.5m/s is reduced to 3.5～4.5m/s；
Step 2: flow velocity described in step one is reduced to the gas containing carbamide dust of 3.5～4.5m/s and passes sequentially through one
Level corrugated sheet flow guide bar 2 and honeycomb rapids ball dust catcher device 3, the gas containing carbamide dust is in the gap of one-level deflection plate 42
Passing through, and laterally enter in honeycomb rapids ball dust catcher device 3, the big particle diameter dust granules of more than 100um exists with airflow collision
Filling ball surface, the gap between dusty gas streams by filling ball simultaneously, there is the change of 8～10 times in direction, gas is equal
Even is distributed in honeycomb rapids ball dust catcher device 3, simultaneously under the effect of gas flow rate, and filling ball generation rotation phenomenon,
Dusty gas is made to form several microcirculations around filling ball；
Step 3: described in step 2, the gas containing carbamide dust is by one-level corrugated sheet flow guide bar 2 and honeycomb rapids ball
While dust catcher device 3, under the effect of one-stage water wash circulating pump 12, by one-stage water wash liquid from primary cycle reservoir 10
One-level spray washing layer is respectively enterd by one-stage water wash circulating pump the 12, first threeway the 33, second threeway 34 and the 3rd threeway 35
14 and two grades of spray washing layers 15 in, one-stage water wash liquid by eddy current shape shower nozzle ejection connect with the back flow of gas containing carbamide dust
Touching, simultaneously under the effect of hydraulic pressure, strike filling ball surface, make filling ball beat and turbulent flow, water lotion is filled out in lower floor
Pellet surface forms uniform liquid film, and liquid film has adsorbed 30% and has been centered around the carbamide powder of in filling ball ambient gas 50～100um
Dirt；
Step 4: gas containing carbamide dust described in step 3 continuously the most from bottom to top by filling ball, one-stage water wash
Liquid passes through filling ball continuously, due to the common effect of hydraulic pressure and air pressure, at the of honeycomb rapids ball dust catcher device 3
Defining the air bubble liquid-membrane that a layer height is 50～60mm above one layer of filling ball, the gas containing carbamide dust breaks through after liquid film 55
～the dust-laden granule of 65% is adsorbed, final step water lotion acts on whereabouts, to lower floor's filling ball surface at self gravitation
Wash, remove the dust of lower floor's filling ball surface adsorption, then by the deflection plate gap of one-level corrugated sheet flow guide bar 2,
Fall in the catch tray of one-level liter QI-mass liquid device 1 and collect；
Step 5: fall into one-level described in step 4 and rise the one-stage water wash liquid in QI-mass liquid device 1 catch tray, along with liquid level
Increase, enter in primary cycle reservoir 10 from one-level liquid outlet 31, when the concentration of one-stage water wash liquid reach 7.0%～
When 8.0%, open the first valve 27 of primary cycle reservoir 10 bottom, make the one-stage water wash liquid of 7.0%～8.0% enter urine
Cellulose solution concentration unit 13 is reclaimed by subsequent production device；
Step 6: by rapid ball dust catcher device 3, one-level spray washing layer 14 and two grades of shower waters described in step 4
The gas containing carbamide dust washing layer 15 becomes band liquid gas, and band liquid gas enters urea dust recovery device housing 7 middle and upper part
Reducing region, now band liquid gas flow rate is increased to 4.5～5.0m/s by original 3.5～4.5m/s；
Step 7: enter the band liquid gas in the reducing region of urea dust recovery device housing 7 middle and upper part described in step 6
Entering in two grades of liter gas passages rising QI-mass liquid device 4, in band liquid gas, the droplet impact to two grades of big particle diameter rises QI-mass liquid dress
Putting the liter gas cap bottom of 4, the drop forming liquid film or bigger particle diameter falls, and enters the circulation of one-stage water wash circulation fluid；Described pass through
After two grades rise QI-mass liquid device 4, the dust content in band liquid gas have dropped 80%～85%, the dust size distribution in band liquid
Scope is 30～70um, and flow velocity is 4.5m/s～5.0m/s；
Step 8: two grades of water lotions in secondary cycle reservoir 8 are under the effect of two grades of water washing cycles pumps 9, by two grades
Circulation reservoir 8 by two grades of water washing cycles pumps 9 and the 5th threeway 38 respectively with three grades of spray washing layers 16 and level Four shower water
Washing layer 17 to be connected, two grades of water lotions fill shower nozzle by solid vertebra and are atomized into the droplet of 20～80um, substantial amounts of droplet and step
QI-mass liquid device is risen by two grades of 30～70um particle diameter dust risen in QI-mass liquid device 4 band liquid gas at two grades described in rapid seven
4 tops collide and contact, and under the effect of surface tension of liquid and dust-charge, the dust of small particle is carried out by droplet
Parcel, then grows up to the big drop that particle diameter is more than 100um, falls into two grades rise QI-mass liquid device acting on of liquid deadweight
In the drip tray of 4, enter secondary cycle reservoir 8 by two grades of liquid outlets 32, when two grades of washings in secondary cycle reservoir 8
When the concentration of liquid reaches 4.0%～5.0%, open the second valve 26 of secondary cycle reservoir 8 bottom, make 4.0%～5.0%
Two grades of water lotions enter primary cycle reservoirs 10, the fluid infusion as primary cycle reservoir uses；
Step 9: in secondary cycle reservoir described in step 88, two grades of water lotions of 4.0%～5.0% enter one-level
After circulation reservoir 10, pressure is that the carbamide waste stripping liquid of 0.70～0.80MPa enters secondary cycle liquid storage by liquid supplementation pipe 37
Groove 8 uses as two grades of water lotions；In described carbamide waste stripping liquid, the proportion of urine is 0%, and temperature is 80～95 DEG C；
Step 10: the band liquid gas in step 8 is by 96-after three grades of spray washing layers 16 and level Four spray washing layer 17
The dust of 97% is absorbed and is removed, and band liquid gas flow rate is down to 2.0m/s～3.0m/s, now with the band liquid of a large amount of drops
Gas enters in the gap of two grades of deflection plates 43, and the adjacent distance between two two grades of deflection plates 43 is 24～32mm, due to
The adjacent gap between two two grades of deflection plates 43 is little, and band liquid gas flow rate raises, and the drop of small particle is in the effect of inertia
The lower turning by two grades of deflection plates 43 traps, and the drop forming big particle diameter falls in two grades of drip tray rising QI-mass liquid device 4；
Step 11: by three grades of spray washing layers 16 and the band liquid gas of level Four spray washing layer 17 described in step 8
In 96～97% dust absorbed and removed；By in band liquid gas after secondary wave shape plate flow guide bar 5 80 in described step 10
～the drop of 90% is removed, is become by the band liquid gas after secondary wave shape plate flow guide bar 5 and can discharge gas, now can discharge
The flow velocity of gas is dropped to 1.5m/s～2.0m/s by 2.0m/s～3.0m/s, can discharge gas at ventilation unit axial flow blower 6
Effect under flow velocity rise to 4.0～5.0m/s after discharged by dusty gas outlet 28；
Step 12: when carbamide concentration unit 13 can not use and the concentration of primary cycle reservoir 10 one-stage water wash liquid
When reaching 7.0%～8.0%, close the 4th valve 20, open the 6th valve 21, make pressure described in step 9 be 0.70～
The carbamide waste stripping liquid of 0.80MPa enters one-level by liquid supplementation pipe the 37, the 4th threeway the 36, the 6th valve 21 and the second threeway 34 and sprays
Trickle is washed in layer 14 and two grades of spray washing layers 15, recycles as one-stage water wash liquid.
The present invention installs the top with urea prilling tower, make use of the stack effect of urea prilling tower itself, it is possible to save
A part of power, it addition, utilize the self-purification capacity of rapid ball, can save the washing of 1/3 relative to common washing packing layer
Amount.The ladder concentration of water lotion is utilized in urea dust recovery device by technical scheme simultaneously, improve urine
The response rate of element dust is to 95%, by two-layer deflection plate demister and four layers of spray washing layer, may finally ensure outlet
Carbamide dust at 20mg/m3Within.
For the more detailed explanation present invention, in conjunction with embodiment, the present invention is further elaborated.Specific embodiment
As follows:
Embodiment one
A kind of honeycomb rapids ball urea dust recovery device, including urea dust recovery device housing small in ends broad in the middle
7, the bottom of described urea dust recovery device housing 7 is connected with the dusty gas outlet 28 of carbamide granulation top of tower, described
The interior bottom of urea dust recovery device housing 7 is provided with one-level and rises QI-mass liquid device 1, urea dust recovery device housing 7
Middle part is disposed with one-level corrugated sheet flow guide bar 2, honeycomb rapids ball dust catcher device 3, one-level spray washing layer from the bottom to top
14, two grades of spray washing layers 15；The top of described urea dust recovery device housing 7 is disposed with two grades from the bottom to top and rises gas
4, three grades of spray washing layers 16 of hydrops device, level Four spray washing layer 17, secondary wave shape plate flow guide bar 5 and ventilation unit 6；Described
Offer one-level on the position that urea dust recovery device housing 7 is corresponding with a side lower part of one-level liter QI-mass liquid device 1 to go out
Liquid mouth 31；Described urea dust recovery device housing 7 rises with two grades and opens on the position that a side lower part of QI-mass liquid device 4 is corresponding
It is provided with two grades of liquid outlets 32；Described one-level liquid outlet 31 and two grades of liquid outlets 32 reclaim circulation fluid system phase with carbamide dust respectively
Even, carbamide dust reclaim circulation fluid system respectively with one-level spray washing layer 15, three grades of spray washing of 14, two grades of spray washing layers
Layer 16, level Four spray washing layer 17 are connected with urea solution concentrating device 13.Described carbamide dust reclaims circulation fluid system and includes
Primary cycle reservoir 10 and secondary cycle reservoir 8, one-level liquid outlet 31 is by the top of pipeline with primary cycle reservoir 10
Portion's inlet is connected, and the liquid outlet bottom described primary cycle reservoir 10 passes through the first valve 27 and urea solution concentrating device
13 inlets are connected, and described primary cycle reservoir 10 top liquid return hole is by the second valve 26 and secondary cycle reservoir 8 end
The liquid outlet in portion is connected, and the circulation fluid mouth of described primary cycle reservoir 10 side passes through filter 11, one-stage water wash circulating pump
12, first threeway the 33, second threeway 34 is connected with the 3rd threeway 35, the second end of described 3rd threeway 35 and one-level spray washing
Layer 14 is connected, and the 3rd end and two grades of spray washing layers 15 of the 3rd threeway 35 are connected, and the 3rd end of the second threeway 34 passes through the 4th
Threeway 36 is connected with moisturizing pipeline 37, and the 3rd end of described first threeway 33 passes through the 3rd valve 18 and urea solution concentrating device
13 inlets are connected；3rd end of the 4th threeway 36 is by the fluid infusion mouth phase of the 4th valve 20 with secondary cycle reservoir 8 side
Even, the circulation fluid mouth of described secondary cycle reservoir 8 opposite side is connected with the 5th threeway 38 by two grades of water washing cycles pumps 9, the
Second end of five threeways and three grades of spray washing layers 16 are connected, the 3rd end of the 5th threeway 38 and level Four spray washing layer 17 phase
Even；Described two grades of liquid outlets 32 are connected with the inlet at secondary cycle reservoir 8 top by pipeline.Described one-level rises QI-mass liquid
Device 1 and two grades rise QI-mass liquid device 4 and are a liter QI-mass liquid device, and described liter of QI-mass liquid device includes drip tray 39, drip tray
Offering several liter of gas passage 40 on 39, the top of several liter of gas passage 40 is respectively equipped with liter gas cap 41.Described fist-order wave
Shape plate flow guide bar 2 is arranged in order by several one-level deflection plates 42 and constitutes, the adjacent distance between two one-level deflection plates 42
Being 40～48mm, the height of one-level deflection plate 42 is 320～360mm, and the material of described one-level deflection plate 42 is superpower polypropylene；
Secondary wave shape plate flow guide bar 5 is arranged in order by several two grades of deflection plates 43 and constitutes, between two adjacent two grades of deflection plates 43
Distance be 24～32mm, the height of two grades of deflection plates 43 is 450～490mm, and the material of described two grades of deflection plates 43 is superpower
Polypropylene.Described honeycomb rapids ball dust catcher device 3 includes the polypropylene sieve plate 44 being located at bottom and is located at polypropylene sieve plate 44
The polypropylene partition panel 45 on top, if cellular polypropylene partition panel 45 is internally provided with dried layer solid filler layers of balls 46, institute
If a diameter of the 45～55mm of the solid filling ball stated in dried layer solid filler layers of balls 46, described solid filling ball is solid poly-third
Alkene filling ball.Described ventilation unit 6 is propeller fan.It is provided with the 5th valve between described first threeway 33 and the second threeway 34
19, it is provided with the 6th valve 21 between the 3rd end and the 4th threeway 36 of the second threeway 34, the second end of the 3rd threeway 35 and one-level
It is provided with the 7th valve 22 between spray washing layer 14, between the 3rd end and two grades of spray washing layers 15 of the 3rd threeway 35, is provided with
Eight valves 23, are provided with the 9th valve 24 between the second end and three grades of spray washing layers 16 of the 5th threeway 38, the 5th threeway 38
It is provided with the tenth valve 25 between 3rd end and level Four spray washing layer 17.Described one-level spray washing layer 14 and two grades of spray washings
It is respectively equipped with eddy spray head 47 on layer 15；It is respectively equipped with solid-cone on three grades of spray washing layers 16 and level Four spray washing layer 17
Shape shower nozzle 48.Described primary cycle reservoir 10 and secondary cycle reservoir 8 top are provided with primary cycle reservoir air vent 29
With secondary cycle reservoir air vent 30.
The recovery method of a kind of honeycomb rapids ball urea dust recovery device, this recovery method comprises the steps:
Step one: the gas containing carbamide dust in the dusty gas outlet 28 of carbamide granulation top of tower in granulation workshop
Entered the bottom of urea dust recovery device housing 7 by stack effect, the gas containing carbamide dust rises QI-mass liquid through one-level
Device 1 enters the flared region in the middle part of urea dust recovery device housing 7, and the gas flow rate containing carbamide dust is by original 5.5
～6.5m/s is reduced to 3.5～4.5m/s；
Step 2: flow velocity described in step one is reduced to the gas containing carbamide dust of 3.5～4.5m/s and passes sequentially through one
Level corrugated sheet flow guide bar 2 and honeycomb rapids ball dust catcher device 3, the gas containing carbamide dust is in the gap of one-level deflection plate 42
Passing through, and laterally enter in honeycomb rapids ball dust catcher device 3, the big particle diameter dust granules of more than 100um exists with airflow collision
Filling ball surface, the gap between dusty gas streams by filling ball simultaneously, there is the change of 8～10 times in direction, gas is equal
Even is distributed in honeycomb rapids ball dust catcher device 3, simultaneously under the effect of gas flow rate, and filling ball generation rotation phenomenon,
Dusty gas is made to form several microcirculations around filling ball；
Step 3: described in step 2, the gas containing carbamide dust is by one-level corrugated sheet flow guide bar 2 and honeycomb rapids ball
While dust catcher device 3, under the effect of one-stage water wash circulating pump 12, by one-stage water wash liquid from primary cycle reservoir 10
One-level spray washing layer is respectively enterd by one-stage water wash circulating pump the 12, first threeway the 33, second threeway 34 and the 3rd threeway 35
14 and two grades of spray washing layers 15 in, one-stage water wash liquid by eddy current shape shower nozzle ejection connect with the back flow of gas containing carbamide dust
Touching, simultaneously under the effect of hydraulic pressure, strike filling ball surface, make filling ball beat and turbulent flow, water lotion is filled out in lower floor
Pellet surface forms uniform liquid film, and liquid film has adsorbed 30% and has been centered around the carbamide powder of in filling ball ambient gas 50～100um
Dirt；
Step 4: gas containing carbamide dust described in step 3 continuously the most from bottom to top by filling ball, one-stage water wash
Liquid passes through filling ball continuously, due to the common effect of hydraulic pressure and air pressure, at the of honeycomb rapids ball dust catcher device 3
Defining the air bubble liquid-membrane that a layer height is 50～60mm above one layer of filling ball, the gas containing carbamide dust breaks through after liquid film 55
～the dust-laden granule of 65% is adsorbed, final step water lotion acts on whereabouts, to lower floor's filling ball surface at self gravitation
Wash, remove the dust of lower floor's filling ball surface adsorption, then by the deflection plate gap of one-level corrugated sheet flow guide bar 2,
Fall in the catch tray of one-level liter QI-mass liquid device 1 and collect；
Step 5: fall into one-level described in step 4 and rise the one-stage water wash liquid in QI-mass liquid device 1 catch tray, along with liquid level
Increase, enter in primary cycle reservoir 10 from one-level liquid outlet 31, when the concentration of one-stage water wash liquid reach 7.0%～
When 8.0%, open the first valve 27 of primary cycle reservoir 10 bottom, make the one-stage water wash liquid of 7.0%～8.0% enter urine
Cellulose solution concentration unit 13 is reclaimed by subsequent production device；
Step 6: by rapid ball dust catcher device 3, one-level spray washing layer 14 and two grades of shower waters described in step 4
The gas containing carbamide dust washing layer 15 becomes band liquid gas, and band liquid gas enters urea dust recovery device housing 7 middle and upper part
Reducing region, now band liquid gas flow rate is increased to 4.5～5.0m/s by original 3.5～4.5m/s；
Step 7: enter the band liquid gas in the reducing region of urea dust recovery device housing 7 middle and upper part described in step 6
Entering in two grades of liter gas passages rising QI-mass liquid device 4, in band liquid gas, the droplet impact to two grades of big particle diameter rises QI-mass liquid dress
Putting the liter gas cap bottom of 4, the drop forming liquid film or bigger particle diameter falls, and enters the circulation of one-stage water wash circulation fluid；Described pass through
After two grades rise QI-mass liquid device 4, the dust content in band liquid gas have dropped 80%～85%, the dust size distribution in band liquid
Scope is 30～70um, and flow velocity is 4.5m/s～5.0m/s；
Step 8: two grades of water lotions in secondary cycle reservoir 8 are under the effect of two grades of water washing cycles pumps 9, by two grades
Circulation reservoir 8 by two grades of water washing cycles pumps 9 and the 5th threeway 38 respectively with three grades of spray washing layers 16 and level Four shower water
Washing layer 17 to be connected, two grades of water lotions fill shower nozzle by solid vertebra and are atomized into the droplet of 20～80um, substantial amounts of droplet and step
QI-mass liquid device is risen by two grades of 30～70um particle diameter dust risen in QI-mass liquid device 4 band liquid gas at two grades described in rapid seven
4 tops collide and contact, and under the effect of surface tension of liquid and dust-charge, the dust of small particle is carried out by droplet
Parcel, then grows up to the big drop that particle diameter is more than 100um, falls into two grades rise QI-mass liquid device acting on of liquid deadweight
In the drip tray of 4, enter secondary cycle reservoir 8 by two grades of liquid outlets 32, when two grades of washings in secondary cycle reservoir 8
When the concentration of liquid reaches 4.0%～5.0%, open the second valve 26 of secondary cycle reservoir 8 bottom, make 4.0%～5.0%
Two grades of water lotions enter primary cycle reservoirs 10, the fluid infusion as primary cycle reservoir uses；
Step 9: in secondary cycle reservoir described in step 88, two grades of water lotions of 4.0%～5.0% enter one-level
After circulation reservoir 10, pressure is that the carbamide waste stripping liquid of 0.70MPa enters work in secondary cycle reservoir 8 by liquid supplementation pipe 37
It is that two grades of water lotions use；In described carbamide waste stripping liquid, the proportion of urine is 0%, and temperature is 80 DEG C；
Step 10: the band liquid gas in step 8 is by 96-after three grades of spray washing layers 16 and level Four spray washing layer 17
The dust of 97% is absorbed and is removed, and band liquid gas flow rate is down to 2.0m/s～3.0m/s, now with the band liquid of a large amount of drops
Gas enters in the gap of two grades of deflection plates 43, and the adjacent distance between two two grades of deflection plates 43 is 24～32mm, due to
The adjacent gap between two two grades of deflection plates 43 is little, and band liquid gas flow rate raises, and the drop of small particle is in the effect of inertia
The lower turning by two grades of deflection plates 43 traps, and the drop forming big particle diameter falls in two grades of drip tray rising QI-mass liquid device 4；
Step 11: by three grades of spray washing layers 16 and the band liquid gas of level Four spray washing layer 17 described in step 8
In 96～97% dust absorbed and removed；By in band liquid gas after secondary wave shape plate flow guide bar 5 80 in described step 10
～the drop of 90% is removed, is become by the band liquid gas after secondary wave shape plate flow guide bar 5 and can discharge gas, now can discharge
The flow velocity of gas is dropped to 1.5m/s～2.0m/s by 2.0m/s～3.0m/s, can discharge gas at ventilation unit axial flow blower 6
Effect under flow velocity rise to 4.0～5.0m/s after discharged by dusty gas outlet 28；
Step 12: when carbamide concentration unit 13 can not use and the concentration of primary cycle reservoir 10 one-stage water wash liquid
When reaching 7.0%～8.0%, close the 4th valve 20, open the 6th valve 21, make pressure described in step 9 be 0.70～
The carbamide waste stripping liquid of 0.80MPa enters one-level by liquid supplementation pipe the 37, the 4th threeway the 36, the 6th valve 21 and the second threeway 34 and sprays
Trickle is washed in layer 14 and two grades of spray washing layers 15, recycles as one-stage water wash liquid.
Embodiment two
A kind of honeycomb rapids ball urea dust recovery device and recovery method thereof, including carbamide dust small in ends broad in the middle
Retracting device housing 7, the bottom of described urea dust recovery device housing 7 and the dusty gas outlet of carbamide granulation top of tower
28 are connected, and the interior bottom of described urea dust recovery device housing 7 is provided with one-level and rises QI-mass liquid device 1, and carbamide dust reclaims
The middle part of device case 7 is disposed with one-level corrugated sheet flow guide bar 2, honeycomb rapids ball dust catcher device 3, one-level from the bottom to top
14, two grades of spray washing layer 15 of spray washing layer；The top of described urea dust recovery device housing 7 sets gradually from the bottom to top
Two grades are had to rise 4, three grades of spray washing layers 16 of QI-mass liquid device, level Four spray washing layer 17, secondary wave shape plate flow guide bar 5 and ventilate
Device 6；Open on the position that described urea dust recovery device housing 7 is corresponding with a side lower part of one-level liter QI-mass liquid device 1
It is provided with one-level liquid outlet 31；The side lower part that described urea dust recovery device housing 7 rises QI-mass liquid device 4 with two grades is corresponding
Position on offer two grades of liquid outlets 32；Described one-level liquid outlet 31 and two grades of liquid outlets 32 reclaim with carbamide dust respectively and follow
Ring liquid system be connected, carbamide dust reclaim circulation fluid system respectively with 14, two grades of spray washing layer 15, three of one-level spray washing layer
Level spray washing layer 16, level Four spray washing layer 17 are connected with urea solution concentrating device 13.Described carbamide dust reclaims circulation
Liquid system includes that primary cycle reservoir 10 and secondary cycle reservoir 8, one-level liquid outlet 31 are stored up with primary cycle by pipeline
The top inlet of liquid bath 10 is connected, and the liquid outlet bottom described primary cycle reservoir 10 is molten with carbamide by the first valve 27
Liquid concentration unit 13 inlet is connected, and described primary cycle reservoir 10 top liquid return hole passes through the second valve 26 and secondary cycle
Liquid outlet bottom reservoir 8 is connected, and the circulation fluid mouth of described primary cycle reservoir 10 side passes through filter 11, one-level water
Wash circulating pump the 12, first threeway the 33, second threeway 34 to be connected with the 3rd threeway 35, the second end of described 3rd threeway 35 and one-level
Spray washing layer 14 is connected, and the 3rd end and two grades of spray washing layers 15 of the 3rd threeway 35 are connected, the 3rd end of the second threeway 34
Being connected with moisturizing pipeline 37 by the 4th threeway 36, the 3rd end of described first threeway 33 passes through the 3rd valve 18 and urea liquid
Concentration unit 13 inlet is connected；3rd end of the 4th threeway 36 is by the 4th valve 20 and secondary cycle reservoir 8 side
Fluid infusion mouth is connected, and the circulation fluid mouth of described secondary cycle reservoir 8 opposite side passes through two grades of water washing cycles pumps 9 and the 5th threeway 38
Being connected, the second end and three grades of spray washing layers 16 of the 5th threeway are connected, the 3rd end of the 5th threeway 38 and level Four spray washing
Layer 17 is connected；Described two grades of liquid outlets 32 are connected with the inlet at secondary cycle reservoir 8 top by pipeline.Described one-level liter
QI-mass liquid device 1 and two grades rise QI-mass liquid device 4 and are a liter QI-mass liquid device, and described liter of QI-mass liquid device includes drip tray 39,
Offering several liter of gas passage 40 in drip tray 39, the top of several liter of gas passage 40 is respectively equipped with liter gas cap 41.Described
One-level corrugated sheet flow guide bar 2 is arranged in order by several one-level deflection plates 42 and constitutes, between two adjacent one-level deflection plates 42
Distance be 40～48mm, the height of one-level deflection plate 42 is 320～360mm, and the material of described one-level deflection plate 42 is superpower
Polypropylene；Secondary wave shape plate flow guide bar 5 is arranged in order by several two grades of deflection plates 43 and constitutes, two adjacent two grades of deflection plates
Distance between 43 is 24～32mm, and the height of two grades of deflection plates 43 is 450～490mm, the material of described two grades of deflection plates 43
For superpower polypropylene.Described honeycomb rapids ball dust catcher device 3 includes the polypropylene sieve plate 44 being located at bottom and is located at polypropylene
The polypropylene partition panel 45 on sieve plate 44 top, if cellular polypropylene partition panel 45 is internally provided with dried layer solid filler layers of balls
46, if a diameter of 45～55mm of the solid filling ball in described dried layer solid filler layers of balls 46, described solid filling ball is real
Heart reclaimed polypropylene pellet.Described ventilation unit 6 is propeller fan.It is provided with between described first threeway 33 and the second threeway 34
Five valves 19, are provided with the 6th valve 21 between the 3rd end and the 4th threeway 36 of the second threeway 34, the second end of the 3rd threeway 35
And it is provided with the 7th valve 22 between one-level spray washing layer 14, between the 3rd end and two grades of spray washing layers 15 of the 3rd threeway 35
It is provided with the 8th valve 23, between the second end and three grades of spray washing layers 16 of the 5th threeway 38, is provided with the 9th valve 24, the five or three
It is provided with the tenth valve 25 between 3rd end and the level Four spray washing layer 17 of logical 38.Described one-level spray washing layer 14 and two grades of sprays
Trickle is washed and is respectively equipped with eddy spray head 47 on layer 15；It is respectively equipped with on three grades of spray washing layers 16 and level Four spray washing layer 17
Solid cone shaped shower nozzle 48.Described primary cycle reservoir 10 and secondary cycle reservoir 8 top are provided with primary cycle reservoir row
QI KOU 29 and secondary cycle reservoir air vent 30.
The recovery method of a kind of honeycomb rapids ball urea dust recovery device, this recovery method comprises the steps:
Step one: the gas containing carbamide dust in the dusty gas outlet 28 of carbamide granulation top of tower in granulation workshop
Entered the bottom of urea dust recovery device housing 7 by stack effect, the gas containing carbamide dust rises QI-mass liquid through one-level
Device 1 enters the flared region in the middle part of urea dust recovery device housing 7, and the gas flow rate containing carbamide dust is by original 5.5
～6.5m/s is reduced to 3.5～4.5m/s；
Step 2: flow velocity described in step one is reduced to the gas containing carbamide dust of 3.5～4.5m/s and passes sequentially through one
Level corrugated sheet flow guide bar 2 and honeycomb rapids ball dust catcher device 3, the gas containing carbamide dust is in the gap of one-level deflection plate 42
Passing through, and laterally enter in honeycomb rapids ball dust catcher device 3, the big particle diameter dust granules of more than 100um exists with airflow collision
Filling ball surface, the gap between dusty gas streams by filling ball simultaneously, there is the change of 8～10 times in direction, gas is equal
Even is distributed in honeycomb rapids ball dust catcher device 3, simultaneously under the effect of gas flow rate, and filling ball generation rotation phenomenon,
Dusty gas is made to form several microcirculations around filling ball；
Step 3: described in step 2, the gas containing carbamide dust is by one-level corrugated sheet flow guide bar 2 and honeycomb rapids ball
While dust catcher device 3, under the effect of one-stage water wash circulating pump 12, by one-stage water wash liquid from primary cycle reservoir 10
One-level spray washing layer is respectively enterd by one-stage water wash circulating pump the 12, first threeway the 33, second threeway 34 and the 3rd threeway 35
14 and two grades of spray washing layers 15 in, one-stage water wash liquid by eddy current shape shower nozzle ejection connect with the back flow of gas containing carbamide dust
Touching, simultaneously under the effect of hydraulic pressure, strike filling ball surface, make filling ball beat and turbulent flow, water lotion is filled out in lower floor
Pellet surface forms uniform liquid film, and liquid film has adsorbed 30% and has been centered around the carbamide powder of in filling ball ambient gas 50～100um
Dirt；
Step 4: gas containing carbamide dust described in step 3 continuously the most from bottom to top by filling ball, one-stage water wash
Liquid passes through filling ball continuously, due to the common effect of hydraulic pressure and air pressure, at the of honeycomb rapids ball dust catcher device 3
Defining the air bubble liquid-membrane that a layer height is 50～60mm above one layer of filling ball, the gas containing carbamide dust breaks through after liquid film 55
～the dust-laden granule of 65% is adsorbed, final step water lotion acts on whereabouts, to lower floor's filling ball surface at self gravitation
Wash, remove the dust of lower floor's filling ball surface adsorption, then by the deflection plate gap of one-level corrugated sheet flow guide bar 2,
Fall in the catch tray of one-level liter QI-mass liquid device 1 and collect；
Step 5: fall into one-level described in step 4 and rise the one-stage water wash liquid in QI-mass liquid device 1 catch tray, along with liquid level
Increase, enter in primary cycle reservoir 10 from one-level liquid outlet 31, when the concentration of one-stage water wash liquid reach 7.0%～
When 8.0%, open the first valve 27 of primary cycle reservoir 10 bottom, make the one-stage water wash liquid of 7.0%～8.0% enter urine
Cellulose solution concentration unit 13 is reclaimed by subsequent production device；
Step 6: by rapid ball dust catcher device 3, one-level spray washing layer 14 and two grades of shower waters described in step 4
The gas containing carbamide dust washing layer 15 becomes band liquid gas, and band liquid gas enters urea dust recovery device housing 7 middle and upper part
Reducing region, now band liquid gas flow rate is increased to 4.5～5.0m/s by original 3.5～4.5m/s；
Step 7: enter the band liquid gas in the reducing region of urea dust recovery device housing 7 middle and upper part described in step 6
Entering in two grades of liter gas passages rising QI-mass liquid device 4, in band liquid gas, the droplet impact to two grades of big particle diameter rises QI-mass liquid dress
Putting the liter gas cap bottom of 4, the drop forming liquid film or bigger particle diameter falls, and enters the circulation of one-stage water wash circulation fluid；Described pass through
After two grades rise QI-mass liquid device 4, the dust content in band liquid gas have dropped 80%～85%, the dust size distribution in band liquid
Scope is 30～70um, and flow velocity is 4.5m/s～5.0m/s；
Step 8: two grades of water lotions in secondary cycle reservoir 8 are under the effect of two grades of water washing cycles pumps 9, by two grades
Circulation reservoir 8 by two grades of water washing cycles pumps 9 and the 5th threeway 38 respectively with three grades of spray washing layers 16 and level Four shower water
Washing layer 17 to be connected, two grades of water lotions fill shower nozzle by solid vertebra and are atomized into the droplet of 20～80um, substantial amounts of droplet and step
QI-mass liquid device is risen by two grades of 30～70um particle diameter dust risen in QI-mass liquid device 4 band liquid gas at two grades described in rapid seven
4 tops collide and contact, and under the effect of surface tension of liquid and dust-charge, the dust of small particle is carried out by droplet
Parcel, then grows up to the big drop that particle diameter is more than 100um, falls into two grades rise QI-mass liquid device acting on of liquid deadweight
In the drip tray of 4, enter secondary cycle reservoir 8 by two grades of liquid outlets 32, when two grades of washings in secondary cycle reservoir 8
When the concentration of liquid reaches 4.0%～5.0%, open the second valve 26 of secondary cycle reservoir 8 bottom, make 4.0%～5.0%
Two grades of water lotions enter primary cycle reservoirs 10, the fluid infusion as primary cycle reservoir uses；
Step 9: in secondary cycle reservoir described in step 88, two grades of water lotions of 4.0%～5.0% enter one-level
After circulation reservoir 10, pressure is that the carbamide waste stripping liquid of 0.80MPa enters work in secondary cycle reservoir 8 by liquid supplementation pipe 37
It is that two grades of water lotions use；In described carbamide waste stripping liquid, the proportion of urine is 0%, and temperature is 95 DEG C；
Step 10: the band liquid gas in step 8 is by 96-after three grades of spray washing layers 16 and level Four spray washing layer 17
The dust of 97% is absorbed and is removed, and band liquid gas flow rate is down to 2.0m/s～3.0m/s, now with the band liquid of a large amount of drops
Gas enters in the gap of two grades of deflection plates 43, and the adjacent distance between two two grades of deflection plates 43 is 24～32mm, due to
The adjacent gap between two two grades of deflection plates 43 is little, and band liquid gas flow rate raises, and the drop of small particle is in the effect of inertia
The lower turning by two grades of deflection plates 43 traps, and the drop forming big particle diameter falls in two grades of drip tray rising QI-mass liquid device 4；
Step 11: by three grades of spray washing layers 16 and the band liquid gas of level Four spray washing layer 17 described in step 8
In 96～97% dust absorbed and removed；By in band liquid gas after secondary wave shape plate flow guide bar 5 80 in described step 10
～the drop of 90% is removed, is become by the band liquid gas after secondary wave shape plate flow guide bar 5 and can discharge gas, now can discharge
The flow velocity of gas is dropped to 1.5m/s～2.0m/s by 2.0m/s～3.0m/s, can discharge gas at ventilation unit axial flow blower 6
Effect under flow velocity rise to 4.0～5.0m/s after discharged by dusty gas outlet 28；
Step 12: when carbamide concentration unit 13 can not use and the concentration of primary cycle reservoir 10 one-stage water wash liquid
When reaching 7.0%～8.0%, close the 4th valve 20, open the 6th valve 21, make pressure described in step 9 be 0.70～
The carbamide waste stripping liquid of 0.80MPa enters one-level by liquid supplementation pipe the 37, the 4th threeway the 36, the 6th valve 21 and the second threeway 34 and sprays
Trickle is washed in layer 14 and two grades of spray washing layers 15, recycles as one-stage water wash liquid.
Embodiment three
A kind of honeycomb rapids ball urea dust recovery device and recovery method thereof, including carbamide dust small in ends broad in the middle
Retracting device housing 7, the bottom of described urea dust recovery device housing 7 and the dusty gas outlet of carbamide granulation top of tower
28 are connected, and the interior bottom of described urea dust recovery device housing 7 is provided with one-level and rises QI-mass liquid device 1, and carbamide dust reclaims
The middle part of device case 7 is disposed with one-level corrugated sheet flow guide bar 2, honeycomb rapids ball dust catcher device 3, one-level from the bottom to top
14, two grades of spray washing layer 15 of spray washing layer；The top of described urea dust recovery device housing 7 sets gradually from the bottom to top
Two grades are had to rise 4, three grades of spray washing layers 16 of QI-mass liquid device, level Four spray washing layer 17, secondary wave shape plate flow guide bar 5 and ventilate
Device 6；Open on the position that described urea dust recovery device housing 7 is corresponding with a side lower part of one-level liter QI-mass liquid device 1
It is provided with one-level liquid outlet 31；The side lower part that described urea dust recovery device housing 7 rises QI-mass liquid device 4 with two grades is corresponding
Position on offer two grades of liquid outlets 32；Described one-level liquid outlet 31 and two grades of liquid outlets 32 reclaim with carbamide dust respectively and follow
Ring liquid system be connected, carbamide dust reclaim circulation fluid system respectively with 14, two grades of spray washing layer 15, three of one-level spray washing layer
Level spray washing layer 16, level Four spray washing layer 17 are connected with urea solution concentrating device 13.Described carbamide dust reclaims circulation
Liquid system includes that primary cycle reservoir 10 and secondary cycle reservoir 8, one-level liquid outlet 31 are stored up with primary cycle by pipeline
The top inlet of liquid bath 10 is connected, and the liquid outlet bottom described primary cycle reservoir 10 is molten with carbamide by the first valve 27
Liquid concentration unit 13 inlet is connected, and described primary cycle reservoir 10 top liquid return hole passes through the second valve 26 and secondary cycle
Liquid outlet bottom reservoir 8 is connected, and the circulation fluid mouth of described primary cycle reservoir 10 side passes through filter 11, one-level water
Wash circulating pump the 12, first threeway the 33, second threeway 34 to be connected with the 3rd threeway 35, the second end of described 3rd threeway 35 and one-level
Spray washing layer 14 is connected, and the 3rd end and two grades of spray washing layers 15 of the 3rd threeway 35 are connected, the 3rd end of the second threeway 34
Being connected with moisturizing pipeline 37 by the 4th threeway 36, the 3rd end of described first threeway 33 passes through the 3rd valve 18 and urea liquid
Concentration unit 13 inlet is connected；3rd end of the 4th threeway 36 is by the 4th valve 20 and secondary cycle reservoir 8 side
Fluid infusion mouth is connected, and the circulation fluid mouth of described secondary cycle reservoir 8 opposite side passes through two grades of water washing cycles pumps 9 and the 5th threeway 38
Being connected, the second end and three grades of spray washing layers 16 of the 5th threeway are connected, the 3rd end of the 5th threeway 38 and level Four spray washing
Layer 17 is connected；Described two grades of liquid outlets 32 are connected with the inlet at secondary cycle reservoir 8 top by pipeline.Described one-level liter
QI-mass liquid device 1 and two grades rise QI-mass liquid device 4 and are a liter QI-mass liquid device, and described liter of QI-mass liquid device includes drip tray 39,
Offering several liter of gas passage 40 in drip tray 39, the top of several liter of gas passage 40 is respectively equipped with liter gas cap 41.Described
One-level corrugated sheet flow guide bar 2 is arranged in order by several one-level deflection plates 42 and constitutes, between two adjacent one-level deflection plates 42
Distance be 40～48mm, the height of one-level deflection plate 42 is 320～360mm, and the material of described one-level deflection plate 42 is superpower
Polypropylene；Secondary wave shape plate flow guide bar 5 is arranged in order by several two grades of deflection plates 43 and constitutes, two adjacent two grades of deflection plates
Distance between 43 is 24～32mm, and the height of two grades of deflection plates 43 is 450～490mm, the material of described two grades of deflection plates 43
For superpower polypropylene.Described honeycomb rapids ball dust catcher device 3 includes the polypropylene sieve plate 44 being located at bottom and is located at polypropylene
The polypropylene partition panel 45 on sieve plate 44 top, if cellular polypropylene partition panel 45 is internally provided with dried layer solid filler layers of balls
46, if a diameter of 45～55mm of the solid filling ball in described dried layer solid filler layers of balls 46, described solid filling ball is real
Heart reclaimed polypropylene pellet.Described ventilation unit 6 is propeller fan.It is provided with between described first threeway 33 and the second threeway 34
Five valves 19, are provided with the 6th valve 21 between the 3rd end and the 4th threeway 36 of the second threeway 34, the second end of the 3rd threeway 35
And it is provided with the 7th valve 22 between one-level spray washing layer 14, between the 3rd end and two grades of spray washing layers 15 of the 3rd threeway 35
It is provided with the 8th valve 23, between the second end and three grades of spray washing layers 16 of the 5th threeway 38, is provided with the 9th valve 24, the five or three
It is provided with the tenth valve 25 between 3rd end and the level Four spray washing layer 17 of logical 38.Described one-level spray washing layer 14 and two grades of sprays
Trickle is washed and is respectively equipped with eddy spray head 47 on layer 15；It is respectively equipped with on three grades of spray washing layers 16 and level Four spray washing layer 17
Solid cone shaped shower nozzle 48.Described primary cycle reservoir 10 and secondary cycle reservoir 8 top are provided with primary cycle reservoir row
QI KOU 29 and secondary cycle reservoir air vent 30.
The recovery method of a kind of honeycomb rapids ball urea dust recovery device, this recovery method comprises the steps:
Step one: the gas containing carbamide dust in the dusty gas outlet 28 of carbamide granulation top of tower in granulation workshop
Entered the bottom of urea dust recovery device housing 7 by stack effect, the gas containing carbamide dust rises QI-mass liquid through one-level
Device 1 enters the flared region in the middle part of urea dust recovery device housing 7, and the gas flow rate containing carbamide dust is by original 5.5
～6.5m/s is reduced to 3.5～4.5m/s；
Step 2: flow velocity described in step one is reduced to the gas containing carbamide dust of 3.5～4.5m/s and passes sequentially through one
Level corrugated sheet flow guide bar 2 and honeycomb rapids ball dust catcher device 3, the gas containing carbamide dust is in the gap of one-level deflection plate 42
Passing through, and laterally enter in honeycomb rapids ball dust catcher device 3, the big particle diameter dust granules of more than 100um exists with airflow collision
Filling ball surface, the gap between dusty gas streams by filling ball simultaneously, there is the change of 8～10 times in direction, gas is equal
Even is distributed in honeycomb rapids ball dust catcher device 3, simultaneously under the effect of gas flow rate, and filling ball generation rotation phenomenon,
Dusty gas is made to form several microcirculations around filling ball；
Step 3: described in step 2, the gas containing carbamide dust is by one-level corrugated sheet flow guide bar 2 and honeycomb rapids ball
While dust catcher device 3, under the effect of one-stage water wash circulating pump 12, by one-stage water wash liquid from primary cycle reservoir 10
One-level spray washing layer is respectively enterd by one-stage water wash circulating pump the 12, first threeway the 33, second threeway 34 and the 3rd threeway 35
14 and two grades of spray washing layers 15 in, one-stage water wash liquid by eddy current shape shower nozzle ejection connect with the back flow of gas containing carbamide dust
Touching, simultaneously under the effect of hydraulic pressure, strike filling ball surface, make filling ball beat and turbulent flow, water lotion is filled out in lower floor
Pellet surface forms uniform liquid film, and liquid film has adsorbed 30% and has been centered around the carbamide powder of in filling ball ambient gas 50～100um
Dirt；
Step 4: gas containing carbamide dust described in step 3 continuously the most from bottom to top by filling ball, one-stage water wash
Liquid passes through filling ball continuously, due to the common effect of hydraulic pressure and air pressure, at the of honeycomb rapids ball dust catcher device 3
Defining the air bubble liquid-membrane that a layer height is 50～60mm above one layer of filling ball, the gas containing carbamide dust breaks through after liquid film 55
～the dust-laden granule of 65% is adsorbed, final step water lotion acts on whereabouts, to lower floor's filling ball surface at self gravitation
Wash, remove the dust of lower floor's filling ball surface adsorption, then by the deflection plate gap of one-level corrugated sheet flow guide bar 2,
Fall in the catch tray of one-level liter QI-mass liquid device 1 and collect；
Step 5: fall into one-level described in step 4 and rise the one-stage water wash liquid in QI-mass liquid device 1 catch tray, along with liquid level
Increase, enter in primary cycle reservoir 10 from one-level liquid outlet 31, when the concentration of one-stage water wash liquid reach 7.0%～
When 8.0%, open the first valve 27 of primary cycle reservoir 10 bottom, make the one-stage water wash liquid of 7.0%～8.0% enter urine
Cellulose solution concentration unit 13 is reclaimed by subsequent production device；
Step 6: by rapid ball dust catcher device 3, one-level spray washing layer 14 and two grades of shower waters described in step 4
The gas containing carbamide dust washing layer 15 becomes band liquid gas, and band liquid gas enters urea dust recovery device housing 7 middle and upper part
Reducing region, now band liquid gas flow rate is increased to 4.5～5.0m/s by original 3.5～4.5m/s；
Step 7: enter the band liquid gas in the reducing region of urea dust recovery device housing 7 middle and upper part described in step 6
Entering in two grades of liter gas passages rising QI-mass liquid device 4, in band liquid gas, the droplet impact to two grades of big particle diameter rises QI-mass liquid dress
Putting the liter gas cap bottom of 4, the drop forming liquid film or bigger particle diameter falls, and enters the circulation of one-stage water wash circulation fluid；Described pass through
After two grades rise QI-mass liquid device 4, the dust content in band liquid gas have dropped 80%～85%, the dust size distribution in band liquid
Scope is 30～70um, and flow velocity is 4.5m/s～5.0m/s；
Step 8: two grades of water lotions in secondary cycle reservoir 8 are under the effect of two grades of water washing cycles pumps 9, by two grades
Circulation reservoir 8 by two grades of water washing cycles pumps 9 and the 5th threeway 38 respectively with three grades of spray washing layers 16 and level Four shower water
Washing layer 17 to be connected, two grades of water lotions fill shower nozzle by solid vertebra and are atomized into the droplet of 20～80um, substantial amounts of droplet and step
QI-mass liquid device is risen by two grades of 30～70um particle diameter dust risen in QI-mass liquid device 4 band liquid gas at two grades described in rapid seven
4 tops collide and contact, and under the effect of surface tension of liquid and dust-charge, the dust of small particle is carried out by droplet
Parcel, then grows up to the big drop that particle diameter is more than 100um, falls into two grades rise QI-mass liquid device acting on of liquid deadweight
In the drip tray of 4, enter secondary cycle reservoir 8 by two grades of liquid outlets 32, when two grades of washings in secondary cycle reservoir 8
When the concentration of liquid reaches 4.0%～5.0%, open the second valve 26 of secondary cycle reservoir 8 bottom, make 4.0%～5.0%
Two grades of water lotions enter primary cycle reservoirs 10, the fluid infusion as primary cycle reservoir uses；
Step 9: in secondary cycle reservoir described in step 88, two grades of water lotions of 4.0%～5.0% enter one-level
After circulation reservoir 10, pressure is that the carbamide waste stripping liquid of 0.75MPa enters work in secondary cycle reservoir 8 by liquid supplementation pipe 37
It is that two grades of water lotions use；In described carbamide waste stripping liquid, the proportion of urine is 0%, and temperature is 87.5 DEG C；
Step 10: the band liquid gas in step 8 is by 96-after three grades of spray washing layers 16 and level Four spray washing layer 17
The dust of 97% is absorbed and is removed, and band liquid gas flow rate is down to 2.0m/s～3.0m/s, now with the band liquid of a large amount of drops
Gas enters in the gap of two grades of deflection plates 43, and the adjacent distance between two two grades of deflection plates 43 is 24～32mm, due to
The adjacent gap between two two grades of deflection plates 43 is little, and band liquid gas flow rate raises, and the drop of small particle is in the effect of inertia
The lower turning by two grades of deflection plates 43 traps, and the drop forming big particle diameter falls in two grades of drip tray rising QI-mass liquid device 4；
Step 11: by three grades of spray washing layers 16 and the band liquid gas of level Four spray washing layer 17 described in step 8
In 96～97% dust absorbed and removed；By in band liquid gas after secondary wave shape plate flow guide bar 5 80 in described step 10
～the drop of 90% is removed, is become by the band liquid gas after secondary wave shape plate flow guide bar 5 and can discharge gas, now can discharge
The flow velocity of gas is dropped to 1.5m/s～2.0m/s by 2.0m/s～3.0m/s, can discharge gas at ventilation unit axial flow blower 6
Effect under flow velocity rise to 4.0～5.0m/s after discharged by dusty gas outlet 28；
Step 12: when carbamide concentration unit 13 can not use and the concentration of primary cycle reservoir 10 one-stage water wash liquid
When reaching 7.0%～8.0%, close the 4th valve 20, open the 6th valve 21, make pressure described in step 9 be 0.70～
The carbamide waste stripping liquid of 0.80MPa enters one-level by liquid supplementation pipe the 37, the 4th threeway the 36, the 6th valve 21 and the second threeway 34 and sprays
Trickle is washed in layer 14 and two grades of spray washing layers 15, recycles as one-stage water wash liquid.
The a series of detailed description of those listed above is only for the feasibility embodiment of the present invention specifically
Bright, they also are not used to limit the scope of the invention, all equivalent implementations made without departing from skill of the present invention spirit
Or change should be included within the scope of the present invention.In describing the invention, it should be noted that unless otherwise bright
True regulation and restriction, term " is arranged ", " installation " etc. should be interpreted broadly, and connects for example, it may be fixing, connects integratedly
Connect, it is also possible to be to removably connect；It can also be the connection of two element internals；Can be to be joined directly together, it is also possible in by
Between medium be indirectly connected to, for the ordinary skill in the art, can understand as the case may be above-mentioned term this
Concrete meaning in invention.Foregoing detailed description is only for illustrating of the feasibility embodiment of the present invention, it
And be not used to limit the scope of the invention, all without departing from skill of the present invention spirit made equivalent implementations, change
Should be included within the scope of the present invention with transformation.
Claims (10)
1. a honeycomb rapids ball urea dust recovery device, it is characterised in that: include that carbamide dust small in ends broad in the middle returns
The dusty gas of receiving apparatus housing (7), the bottom of described urea dust recovery device housing (7) and carbamide granulation top of tower is discharged
Mouth (28) is connected, and the interior bottom of described urea dust recovery device housing (7) is provided with one-level and rises QI-mass liquid device (1), carbamide
The middle part of device for recovering powder housing (7) is disposed with one-level corrugated sheet flow guide bar (2), honeycomb rapids ball dedusting from the bottom to top
Device device (3), one-level spray washing layer (14), two grades of spray washing layers (15)；Described urea dust recovery device housing (7)
Top is disposed with two grades from the bottom to top and rises QI-mass liquid device (4), three grades of spray washing layers (16), level Four spray washing layers
(17), secondary wave shape plate flow guide bar (5) and ventilation unit (6)；Described urea dust recovery device housing (7) rises QI-mass with one-level
One-level liquid outlet (31) is offered on the position that one side lower part of liquid device (1) is corresponding；Described urea dust recovery device shell
Body (7) rises with two grades and offers two grades of liquid outlets (32) on the position that a side lower part of QI-mass liquid device (4) is corresponding；Described one
Level liquid outlet (31) reclaims circulation fluid system with carbamide dust respectively with two grades of liquid outlets (32) and is connected, and carbamide dust reclaims circulation
Liquid system sprays with one-level spray washing layer (14), two grades of spray washing layers (15), three grades of spray washing layers (16), level Four respectively
Washing layer (17) is connected with urea solution concentrating device (13).
A kind of honeycomb rapids ball urea dust recovery device, it is characterised in that: described carbamide dust
Reclaiming circulation fluid system and include primary cycle reservoir (10) and secondary cycle reservoir (8), one-level liquid outlet (31) is by pipe
Road is connected with the top inlet of primary cycle reservoir (10), and the liquid outlet of described primary cycle reservoir (10) bottom passes through
First valve (27) is connected with urea solution concentrating device (13) inlet, described primary cycle reservoir (10) top liquid return hole
It is connected by the liquid outlet of the second valve (26) with secondary cycle reservoir (8) bottom, described primary cycle reservoir (10)
The circulation fluid mouth of side passes through filter (11), one-stage water wash circulating pump (12), the first threeway (33), the second threeway (34) and the 3rd
Threeway (35) is connected, and the second end of described 3rd threeway (35) is connected with one-level spray washing layer (14), the 3rd threeway (35)
3rd end and two grades of spray washing layers (15) are connected, and the 3rd end of the second threeway (34) is by the 4th threeway (36) and moisturizing pipeline
(37) being connected, the 3rd end of described first threeway (33) is by the 3rd valve (18) and urea solution concentrating device (13) inlet
It is connected；3rd end of the 4th threeway (36) is connected with the fluid infusion mouth of secondary cycle reservoir (8) side by the 4th valve (20),
The circulation fluid mouth of described secondary cycle reservoir (8) opposite side is connected with the 5th threeway (38) by two grades of water washing cycles pumps (9),
Second end and three grades of spray washing layers (16) of the 5th threeway are connected, the 3rd end of the 5th threeway (38) and level Four spray washing layer
(17) it is connected；Described two grades of liquid outlets (32) are connected with the inlet at secondary cycle reservoir (8) top by pipeline.
A kind of honeycomb rapids ball urea dust recovery device, it is characterised in that: described one-level rises gas
Hydrops device (1) and two grades rise QI-mass liquid device (4) and are a liter QI-mass liquid device, and described liter of QI-mass liquid device includes drip tray
(39), drip tray (39) offering several liter of gas passage (40), the top of several liter of gas passage (40) is respectively equipped with liter
Gas cap (41).
A kind of honeycomb rapids ball urea dust recovery device, it is characterised in that: described one-level waveform
Plate flow guide bar (2) is arranged in order by several one-level deflection plates (42) and constitutes, between two adjacent one-level deflection plates (42)
Distance is 40～48mm, and the height of one-level deflection plate (42) is 320～360mm, and the material of described one-level deflection plate (42) is super
Strong polypropylene；Secondary wave shape plate flow guide bar (5) is arranged in order by several two grades of deflection plates (43) and constitutes, adjacent two two grades
Distance between deflection plate (43) is 24～32mm, and the height of two grades of deflection plates (43) is 450～490mm, described two grades of bafflings
The material of plate (43) is superpower polypropylene.
A kind of honeycomb rapids ball urea dust recovery device, it is characterised in that: described honeycomb rapids ball
Formula dust catcher device (3) include being located at bottom polypropylene sieve plate (44) and be located at the polypropylene on polypropylene sieve plate (44) top every
Disconnected plate (45), cellular polypropylene partition panel (45) is if being internally provided with dried layer solid filler layers of balls (46), if described dried layer
A diameter of 45～55mm of solid filling ball in solid filler layers of balls (46), described solid filling ball is solid polypropylene filler
Ball.
A kind of honeycomb rapids ball urea dust recovery device, it is characterised in that: described ventilation unit
(6) it is propeller fan.
A kind of honeycomb rapids ball urea dust recovery device, it is characterised in that: described first threeway
(33) the 5th valve (19) it is provided with between and the second threeway (34), between the 3rd end and the 4th threeway (36) of the second threeway (34)
It is provided with the 6th valve (21), between the second end and one-level spray washing layer (14) of the 3rd threeway (35), is provided with the 7th valve
(22), it is provided with the 8th valve (23) between the 3rd end and two grades of spray washing layers (15) of the 3rd threeway (35), the 5th threeway
(38) it is provided with the 9th valve (24), the 3rd end and four of the 5th threeway (38) between the second end and three grades of spray washing layers (16)
It is provided with the tenth valve (25) between level spray washing layer (17).
A kind of honeycomb rapids ball urea dust recovery device, it is characterised in that: described one-level sprays
It is respectively equipped with eddy spray head (47) in washing layer (14) and two grades of spray washing layers (15)；Three grades of spray washing layers (16) and four
It is respectively equipped with solid cone shaped shower nozzle (48) in level spray washing layer (17).
A kind of honeycomb rapids ball urea dust recovery device, it is characterised in that: described primary cycle
Reservoir (10) and secondary cycle reservoir (8) top are provided with primary cycle reservoir air vent (29) and secondary cycle reservoir
Air vent (30).
10. the recovery method of a honeycomb rapids ball urea dust recovery device as claimed in claim 1, it is characterised in that: should
Recovery method comprises the steps:
Step one: in granulation workshop, the gas containing carbamide dust in the dusty gas outlet (28) of carbamide granulation top of tower leads to
Crossing stack effect and enter the bottom of urea dust recovery device housing (7), the gas containing carbamide dust rises QI-mass liquid through one-level
Device (1) enters the flared region at urea dust recovery device housing (7) middle part, and the gas flow rate containing carbamide dust is by original
5.5～6.5m/s are reduced to 3.5～4.5m/s；
Step 2: flow velocity described in step one is reduced to the gas containing carbamide dust of 3.5～4.5m/s and passes sequentially through fist-order wave
Shape plate flow guide bar (2) and honeycomb rapids ball dust catcher device (3), the gas containing carbamide dust is in the gap of one-level deflection plate (42)
In pass through, and in laterally entering honeycomb rapids ball dust catcher device (3), the big particle diameter dust granules of more than 100um touches with air-flow
Hitting on filling ball surface, the gap between dusty gas streams by filling ball simultaneously, there is the change of 8～10 times, gas in direction
Body is distributed in honeycomb rapids ball dust catcher device (3) uniformly, simultaneously under the effect of gas flow rate, and filling ball generation rotation
Phenomenon, makes dusty gas form several microcirculations around filling ball；
Step 3: described in step 2, the gas containing carbamide dust is removed by one-level corrugated sheet flow guide bar (2) and honeycomb rapids ball
While dirt device device (3), under the effect of one-stage water wash circulating pump (12), by one-level water from primary cycle reservoir (10)
Washing liquid respectively enters one by one-stage water wash circulating pump (12), the first threeway (33), the second threeway (34) and the 3rd threeway (35)
In level spray washing layer (14) and two grades of spray washing layers (15), one-stage water wash liquid is by the ejection of eddy current shape shower nozzle and containing carbamide powder
The back flow of gas contact of dirt, simultaneously under the effect of hydraulic pressure, strikes filling ball surface, makes filling ball beat and turbulent flow,
Water lotion forms uniform liquid film on lower floor's filling ball surface, liquid film adsorbed 30% be centered around in filling ball ambient gas 50～
The carbamide dust of 100um；
Step 4: gas containing carbamide dust described in step 3 continuously the most from bottom to top by filling ball, one-stage water wash liquid is even
Continue and pass through filling ball, due to hydraulic pressure and the common effect of air pressure, at the first of honeycomb rapids ball dust catcher device (3)
Define, above layer filling ball, the air bubble liquid-membrane that a layer height is 50～60mm, the gas containing carbamide dust break through after liquid film 55～
The dust-laden granule of 65% is adsorbed, and final step water lotion acts on whereabouts at self gravitation, enters lower floor's filling ball surface
Row washing, removes the dust of lower floor's filling ball surface adsorption, then by the deflection plate gap of one-level corrugated sheet flow guide bar (2),
Fall in the catch tray of one-level liter QI-mass liquid device (1) and collect；
Step 5: fall into one-level described in step 4 and rise the one-stage water wash liquid in QI-mass liquid device (1) catch tray, along with liquid level
Increase, enter in primary cycle reservoir (10) from one-level liquid outlet (31), when the concentration of one-stage water wash liquid reach 7.0%～
When 8.0%, open first valve (27) of primary cycle reservoir (10) bottom, make the one-stage water wash liquid of 7.0%～8.0% enter
Enter urea solution concentrating device (13) to be reclaimed by subsequent production device；
Step 6: by rapid ball dust catcher device (3), one-level spray washing layer (14) and two grades of shower waters described in step 4
The gas containing carbamide dust washing layer (15) becomes band liquid gas, and band liquid gas enters in urea dust recovery device housing (7)
The reducing region on top, now band liquid gas flow rate is increased to 4.5～5.0m/s by original 3.5～4.5m/s；
Step 7: the band liquid gas in the reducing region entering urea dust recovery device housing (7) middle and upper part described in step 6 enters
Entering in two grades of liter gas passages rising QI-mass liquid device (4), in band liquid gas, the droplet impact to two grades of big particle diameter rises QI-mass liquid dress
Putting the liter gas cap bottom of (4), the drop forming liquid film or bigger particle diameter falls, and enters the circulation of one-stage water wash circulation fluid；Described logical
Cross two grades rise QI-mass liquid device (4) after, the dust content in band liquid gas have dropped 80%～85%, the dust size in band liquid
Distribution is 30～70um, and flow velocity is 4.5m/s～5.0m/s；
Step 8: two grades of water lotions in secondary cycle reservoir (8) are under the effect of two grades of water washing cycles pumps (9), by two grades
Circulation reservoir (8) by two grades of water washing cycles pumps (9) and the 5th threeway (38) respectively with three grades of spray washing layers (16) and four
Level spray washing layer (17) is connected, and two grades of water lotions fill shower nozzle by solid vertebra and are atomized into the droplet of 20～80um, substantial amounts of
By two grades of 30～70um particle diameter dust risen in QI-mass liquid device (4) band liquid gas at two grades described in droplet and step 7
Rising QI-mass liquid device (4) top collide and contact, under the effect of surface tension of liquid and dust-charge, droplet is by little
The dust of particle diameter wraps up, and then grows up to the big drop that particle diameter is more than 100um, falls into two acting on of liquid deadweight
Level rises in the drip tray of QI-mass liquid device (4), enters secondary cycle reservoir (8) by two grades of liquid outlets (32), when two grades are followed
When the concentration of two grades of water lotions in ring reservoir (8) reaches 4.0%～5.0%, open secondary cycle reservoir (8) bottom
Second valve (26), makes two grades of water lotions of 4.0%～5.0% enter primary cycle reservoir (10), stores up as primary cycle
The fluid infusion of liquid bath uses；
Step 9: in secondary cycle reservoir described in step 8 (8), two grades of water lotions entrance one-levels of 4.0%～5.0% are followed
After ring reservoir (10), pressure is that the carbamide waste stripping liquid of 0.70～0.80MPa is by liquid supplementation pipe (37) entrance secondary cycle storage
Liquid bath (8) uses as two grades of water lotions；In described carbamide waste stripping liquid, the proportion of urine is 0%, and temperature is 80～95
℃；
Step 10: the band liquid gas in step 8 passes through three grades of spray washing layers (16) and level Four spray washing layer (17) 96-afterwards
The dust of 97% is absorbed and is removed, and band liquid gas flow rate is down to 2.0m/s～3.0m/s, now with the band liquid of a large amount of drops
Gas enters in the gap of two grades of deflection plates (43), and the adjacent distance between two two grades deflection plates (43) is 24～32mm,
Owing to the gap between two two grades adjacent deflection plates (43) is little, band liquid gas flow rate raises, and the drop of small particle is at inertia
Effect under trapped by the turning of two grades of deflection plates (43), form the drop of big particle diameter and fall to two grades and rise QI-mass liquid device (4)
Drip tray in；
Step 11: by three grades of spray washing layers (16) and the band liquid gas of level Four spray washing layer (17) described in step 8
In 96～97% dust absorbed and removed；By in secondary wave shape plate flow guide bar (5) band liquid gas afterwards in described step 10
80～90% drop be removed, become by the band liquid gas after secondary wave shape plate flow guide bar (5) and gas can be discharged, now may be used
The flow velocity of discharge gas is dropped to 1.5m/s～2.0m/s by 2.0m/s～3.0m/s, can discharge gas at ventilation unit axial flow wind
Discharged by dusty gas outlet (28) after under the effect of machine (6), flow velocity rises to 4.0～5.0m/s；
Step 12: when carbamide concentration unit (13) can not use and the concentration of primary cycle reservoir (10) one-stage water wash liquid
When reaching 7.0%～8.0%, closing the 4th valve (20), open the 6th valve (21), making pressure described in step 9 is 0.70
～the carbamide waste stripping liquid of 0.80MPa is by liquid supplementation pipe (37), the 4th threeway (36), the 6th valve (21) and the second threeway (34)
Enter in one-level spray washing layer (14) and two grades of spray washing layers (15), recycle as one-stage water wash liquid.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106731399A (en) * | 2016-12-30 | 2017-05-31 | 天津大学 | A kind of multistage combined high efficient heat exchanging dust arrester and its application method |
| CN107029542A (en) * | 2017-06-08 | 2017-08-11 | 威海普益船舶环保科技有限公司 | Guiding device and scrubbing tower |
| CN107754533A (en) * | 2017-11-14 | 2018-03-06 | 江苏国强环保集团有限公司 | A kind of bubbling restrains dedusting and desulfurizing tower |
| CN107789934A (en) * | 2017-10-27 | 2018-03-13 | 安徽凯奇化工科技股份有限公司 | A kind of device for recovering powder for granulation tower |
| CN107970716A (en) * | 2018-01-12 | 2018-05-01 | 西安同大科技有限公司 | Mechanical ventilation type tower top treating flour dust retracting device |
| CN109519952A (en) * | 2018-12-12 | 2019-03-26 | 河南心连心化肥有限公司 | A kind of device and plume removal methods of the removing of boiler chimney plume |
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| CN105597513A (en) * | 2016-01-29 | 2016-05-25 | 石家庄宇清环保科技有限公司 | Flue gas desulfurizing and dust removing device of coal-fired boiler |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106731399A (en) * | 2016-12-30 | 2017-05-31 | 天津大学 | A kind of multistage combined high efficient heat exchanging dust arrester and its application method |
| CN107029542A (en) * | 2017-06-08 | 2017-08-11 | 威海普益船舶环保科技有限公司 | Guiding device and scrubbing tower |
| CN107789934A (en) * | 2017-10-27 | 2018-03-13 | 安徽凯奇化工科技股份有限公司 | A kind of device for recovering powder for granulation tower |
| CN107754533A (en) * | 2017-11-14 | 2018-03-06 | 江苏国强环保集团有限公司 | A kind of bubbling restrains dedusting and desulfurizing tower |
| CN107970716A (en) * | 2018-01-12 | 2018-05-01 | 西安同大科技有限公司 | Mechanical ventilation type tower top treating flour dust retracting device |
| CN109519952A (en) * | 2018-12-12 | 2019-03-26 | 河南心连心化肥有限公司 | A kind of device and plume removal methods of the removing of boiler chimney plume |
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