CN105983319A - Multilayer spraying device - Google Patents
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- CN105983319A CN105983319A CN201510052350.7A CN201510052350A CN105983319A CN 105983319 A CN105983319 A CN 105983319A CN 201510052350 A CN201510052350 A CN 201510052350A CN 105983319 A CN105983319 A CN 105983319A
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Abstract
The invention relates to a multilayer spraying device. The multilayer spraying device is mainly used for solving the problems in the prior art that the ratio of distribution of multilayer spraying of a cooling tower for ammonia oxidation reaction gases is unreasonable, the cooling effect is poor, and the ammonia neutralization effect is poor. According to the multilayer spraying device, by adopting the technical scheme that the multilayer spraying device comprises multiple spraying layers which are formed by sprayers in a manner of being distributed in a geometric shape, distances among the multiple spraying layers gradually increase from bottom to top, and the distance among an upper spraying layer is 1 to 1.5 times that among next spraying layer, the problems are better solved, and thus the multilayer spraying device can be applied to an industrial unit for an ammonia oxidation reaction.
Description
Technical field
The present invention relates to a kind of Multi-layer sprinkling device, be particularly well-suited to the neutralization of ammonia in ammoxidation reaction.
Background technology
In ammoxidation reaction device, containing unreacted ammonia in the reacting gas of fluidized-bed reactor outlet, it is necessary to as early as possible
Being removed, and remove thorough, otherwise ammonia entrance follow-up system will cause system pH value to increase, and cause loss of product to increase
Add, affect the response rate of product, also result in the polymer plugging of tower, heat exchanger, pipeline etc. simultaneously, just affecting device
Often run.In existing apparatus, the distance between Multi-layer sprinkling layer is typically by contour arrangement, not according to the ammonia in reacting gas
The situation of change that uphill process from top to bottom gradually decreases, carries out spraying layer arrangement, it is impossible to remove rapidly targetedly
Ammonia, therefore, neutralizes the cycle of operation for extension fixture of the unreacted ammonia in reacting gas quickly, up hill and dale, reduces device
Consumption, be of great practical significance and economic benefit.
Document US3885928 describes recovery and the refining system of a kind of alkene nitrile, and wherein on the one hand the purpose of emergency cooling process is
Reactor effluent is cooled to uniform temperature, be on the other hand in reactor effluent unreacted ammonia and reaction generate poly-
Compound and heavy impurity.Technical scheme employed in the document is to use water and sulphuric acid as chilling liquid, aqueous, sour, polymerization
The bottoms of thing and other impurity is discharged from chilling system.Liquid containing ammonium sulfate, heavy impurity, a small amount of lightweight in these bottoms
Organic substance and water.Owing to ammonia conversion ratio is uncontrolled, make in reacting gas containing unreacted ammonia, unreacted ammonia and propylene
Nitrile reacts, and reduces the refined recovery rate of acrylonitrile.Unreacted ammonia must be removed quickly, up hill and dale.
Summary of the invention
One of the technical problem to be solved is many to the neutralizing tower of ammoxidation reaction gas present in prior art
Layer spray equipment is unreasonable, and cooling effect is bad, and ammonia neutralization is bad, and ammonia enters follow-up tower, heat exchanger and pipeline system
System, causes follow-up equipment, pipeline to block, and device consumption increases, the problem that cycle of operation shortens, it is provided that a kind of new spray
Device.This device has good cooling results, and ammonia neutralization is good, reduces device consumption, the advantage of extension fixture cycle of operation.
The two of the technical problem to be solved are to the neutralizing tower of ammoxidation reaction gas present in prior art
Neutralization method is unreasonable, and cooling effect is bad, and ammonia neutralization is bad, and ammonia enters follow-up tower, heat exchanger and pipeline system,
Causing follow-up equipment, pipeline to block, device consumption increases, the problem that cycle of operation shortens, it is provided that a kind of new neutralization method.
The method has good cooling results, and ammonia neutralization is good, reduces device consumption, the advantage of extension fixture cycle of operation.
For solving one of above-mentioned technical problem, the technical solution used in the present invention is as follows: a kind of Multi-layer sprinkling device, including shell
Body, reaction gas inlet and outlet, reacting gas neutralizer entrance and exit, reaction gas inlet is arranged on sprinkling equipment
Bottom, reaction gas outlet is arranged on the top of sprinkling equipment, and reacting gas neutralizer entrance is provided in reaction gas inlet
Top, neutralizer outlet is arranged on bottom sprinkling equipment, and spraying layer is provided above except mist eliminator, wherein reacting gas neutralizer
Entrance is arranged is arranged the Multi-layer sprinkling layer that forms by geometry by shower nozzle, the distance between Multi-layer sprinkling layer be from top to bottom by
Step increases, and the distance between a upper spraying layer is 1-1.5 times of the distance between next spraying layer.
In technique scheme, preferred technical scheme is, on Multi-layer sprinkling layer, the distance between a spraying layer is next spray
1.05-1.4 times of distance between Ceng, preferably scope are 1.1-1.2 times.
In technique scheme, preferred technical scheme is, the preferred scope of described spraying layer is 1～8 layer, more preferably model
Enclosing is 2～4 layers, and most preferred range is 1～2 layer；The preferred scope of the arrangement density of every layer of spraying layer shower nozzle is 1～4 spray
Head/m2, more preferably scope is 1～2 shower nozzle/m2；The geometry of every layer of water-spraying fabric includes square, rectangle, just
At least one in triangle, concentric circular annular；Described shower nozzle includes hollow cone, solid-cone, screw type, air atomizing
At least one in shower nozzle.
In technique scheme, preferred technical scheme is, is provided above demister at spraying layer, and demister includes board-like
At least one in demister, wire mesh demister, bubble cap tray, sieve plate, filler；Demister includes the reason of bubble cap tray, sieve plate
The preferred scope of opinion plate number is 1～5 piece, and more preferably scope is 1～2 piece；Demister is the preferred model of the number of theoretical plate of filler
Enclosing is 1～5 piece, and more preferably scope is 1～2 piece.
In technique scheme, preferred technical scheme is, below described reacting gas neutralizer spraying layer, reacting gas
It is 1～10 piece that entrance top arranges the preferred scope of the theoretical plate of column plate or filler, and more preferably scope is 2～6 pieces；Described
Column plate is at least one in float valve, sieve aperture, bubble-cap, guiding sieve aperture；Described filler is that grid, regular screen waviness are filled out
At least one in material, Raschig ring, Pall ring.
In technique scheme, preferred technical scheme is, the distance 0.7-1.3 rice between Multi-layer sprinkling layer, every layer of spray
Layer arranges supervisor, arm, short tube, the wherein 0.2-0.5 of a diameter of predominant tube diameter of arm；Short tube a diameter of arm diameter
0.3-0.5, arranges the spraying layer that 1-2 layer upwards sprays below demister.
In technique scheme, preferred technical scheme is, arranges gas distributor at reaction gas inlet, and gas is distributed
Type formula includes the one in semicircle cast, pipe distributor, dendroid porous type, biserial vane type.
In technique scheme, preferred technical scheme is, reaction gas inlet is provided above liquid distribution trough, and liquid divides
Cloth device includes the one in tube and tank type, hole slot formula, trough-tray liquid distributor.
For solving the two of above-mentioned technical problem, the technical solution used in the present invention is as follows:
A kind of neutralization method, uses any one spray equipment above-mentioned, and neutralization method includes following several step:
A) by the neutralizer that weight ratio is 0.3～20 that temperature is 50～200 DEG C and reacting gas from by shower nozzle by geometry
The neutralizer spraying layer of arrangement composition sprays, with reacting gas counter current contacting；
B) reacting gas after neutralizing enters above spraying layer with the speed of 0.2～5m/s, enters absorption system after mist eliminator.
In technique scheme, preferred technical scheme is, the reacting gas neutralizer temperature contacted with reacting gas preferred
Scope is 50～150 DEG C, and more preferably scope is 70～120 DEG C；Reacting gas cleaning mixture and the preferred model of reacting gas weight ratio
Enclosing is 4.5～18, and more preferably scope is 5～16；The preferred scope entering the reacting gas speed above spraying layer is
0.8～2m/s；
In technique scheme, preferred technical scheme is, the spray flux of Multi-layer sprinkling layer from top to bottom for gradually reducing, with
On weight meter the spray flux of a spraying layer be the 0.5-1 of next spraying layer spray flux, preferably scope be 0.7-0.99, more preferably model
Enclose for 0.8-0.9.
Due to Multi-layer sprinkling device and the neutralization method of the present invention, spray equipment include housing, reaction gas inlet and outlet,
Reacting gas neutralizer entrance and exit, wherein the setting of reacting gas neutralizer entrance is made up of by geometry arrangement shower nozzle
Multi-layer sprinkling layer, the distance between Multi-layer sprinkling layer is from top to bottom for being stepped up, and reaction gas inlet is arranged on sprinkling equipment
Bottom, reaction gas outlet is arranged on the top of sprinkling equipment, and reacting gas neutralizer entrance is provided in reacting gas and enters
Above Kou, neutralizer outlet is arranged on bottom sprinkling equipment, and spraying layer is provided above, except mist eliminator, using uniform temperature, with
Reacting gas is that the reacting gas neutralizer of certain weight ratio sprays from the spraying layer being made up of by geometry arrangement shower nozzle,
Wash with reacting gas counter current contacting, and at the appropriate speed above spraying layer, gas-to-liquid contact washing is abundant, effectively
Eliminate the ammonia in reacting gas, reduce the consumption level of device, extend the cycle of operation of device, improve spray and set
Standby cooling effect, owing to being provided with the spraying layer upwards sprayed below demister, upwards hydroblasting defoaming plate and demister
Long-pending upper polymer, maintains the cleaning of defoaming plate.
The present invention is applicable to the neutralization reaction of ammoxidation reaction ammonia in gas, is equally applicable to fluidized-bed reactor outlet reaction gas
The catalyst fines carried secretly in the cooling of body and ammoxidation reaction gas and the removal of heavy constituent.
Use the Multi-layer sprinkling device of the present invention, spray equipment arranges 4 layers and is made up of by square arrangement hollow cone shower nozzle
Reacting gas neutralizer spraying layer, the arrangement density of shower nozzle is 2 shower nozzle/m2, under distance between a upper spraying layer is
1.2 of distance between one spraying layer, spraying layer is provided above the bubble cap tray of 2 pieces of theoretical plates as demister, at reaction gas
Below body cleaning mixture spraying layer, reaction gas inlet be provided above the grid packing of 6 pieces of theoretical plates, reaction gas inlet is arranged
Dendroid porous type distributor, after spray equipment shower nozzle sprays, the clearance of the ammonia in reacting gas reaches 99.9%, spray
Device and follow-up system are without blocking, and heat exchanger heat transfer effect is constant, and device consumption keeps constant, extend the operation week of device
Phase, achieve preferable technique effect.
Accompanying drawing explanation
Fig. 1 is the spray equipment schematic diagram neutralizing reaction of the present invention；
In Fig. 1,1 is spray equipment, and 2 is gas distributor, and 3 is reaction gas inlet, and 5 spray for reacting gas neutralizer
Layer, 6 is demister, and 7 is reaction gas outlet, and 8 is reacting gas neutralizer entrance, and 9 export for neutralizer.
The Multi-layer sprinkling device of the present invention and the technical process of neutralization method are as follows: reacting gas enters from reaction gas inlet 3
Spray equipment 1 bottom, after gas distributor 2 and from reacting gas neutralizer spraying layer 5, the reacting gas of ejection neutralizes
Liquid 8 carries out counter current contacting neutralization, and the reacting gas after neutralization removes subsequent absorption from reaction gas outlet 7 after entering demister 6
Tower, neutralizes waste liquid 9 and removes wastewater treatment equipment.
Below by specific embodiment, the invention will be further elaborated.
Detailed description of the invention
[comparative example 1]
Chilling tower reacting gas neutralizer sprays from Multi-layer sprinkling layer and reacts with reacting gas counter current contacting, and spraying layer is equidistant
Distribution, in chilling tower outlet gas phase, the neutralization of ammonia is incomplete, and the clearance of ammonia reaches 95%, after unneutralized ammonia enters into
In continuous system, organic polymerization losses increases, and causes follow-up tower, heat exchanger, pipeline to block, is just affecting device
Often run, shorten cycle of operation.
[comparative example 2]
Chilling tower reacting gas neutralizer sprays from monolayer spraying layer and reacts with reacting gas counter current contacting, and chilling tower exports
In gas phase, the neutralization of ammonia is incomplete, and the clearance of ammonia reaches 93%, and unneutralized ammonia enters in follow-up system, Organic substance
Polymerization losses increase, cause follow-up tower, heat exchanger, pipeline blocks, affect the properly functioning of device, shortening operation
Cycle.
[embodiment 1]
Use the Multi-layer sprinkling device of the present invention, spray equipment arranges 4 layers and is made up of by square arrangement hollow cone shower nozzle
Reacting gas neutralizer spraying layer, the arrangement density of shower nozzle is 2 shower nozzle/m2, under distance between a upper spraying layer is
1.2 of distance between one spraying layer, spraying layer is provided above the bubble cap tray of 2 pieces of theoretical plates as demister, at reaction gas
Below body cleaning mixture spraying layer, reaction gas inlet be provided above the grid packing of 6 pieces of theoretical plates, reaction gas inlet is arranged
Dendroid porous type distributor, after spray equipment shower nozzle sprays, the clearance of the ammonia in reacting gas reaches 99.0%, spray
Device and follow-up system are without blocking, and heat exchanger heat transfer effect is constant, and device consumption keeps constant, extend the operation week of device
Phase, achieve preferable technique effect.
[embodiment 2]
Use the Multi-layer sprinkling device of the present invention, spray equipment arranges 8 layers and is made up of by square arrangement hollow cone shower nozzle
Reacting gas neutralizer spraying layer, the arrangement density of shower nozzle is 4 shower nozzle/m2, under distance between a upper spraying layer is
1.5 of distance between one spraying layer, spraying layer is provided above the bubble cap tray of 3 pieces of theoretical plates as demister, at reaction gas
Below body cleaning mixture spraying layer, reaction gas inlet be provided above the grid packing of 5 pieces of theoretical plates, reaction gas inlet is arranged
Dendroid porous type distributor, after spray equipment shower nozzle sprays, the clearance of the ammonia in reacting gas reaches 99.2%, spray
Device and follow-up system are without blocking, and heat exchanger heat transfer effect is constant, and device consumption keeps constant, extend the operation week of device
Phase, achieve preferable technique effect.
[embodiment 3]
A kind of Multi-layer sprinkling device, including housing, reaction gas inlet, reaction gas inlet outlet, reacting gas neutralizer
Entrance, reacting gas neutralizer export, and reaction gas inlet is arranged on the bottom of sprinkling equipment, and reaction gas outlet is arranged on
The top of sprinkling equipment, reacting gas neutralizer entrance is provided in above reaction gas inlet, and reacting gas neutralizer exports
Being arranged on bottom sprinkling equipment, spraying layer is provided above demister,
Wherein, reacting gas neutralizer entrance arranges the Multi-layer sprinkling layer being made up of shower nozzle, Multi-layer sprinkling by geometry arrangement
Distance between Ceng is from top to bottom for being stepped up, and the distance between a upper spraying layer is the distance between next spraying layer
1.1 again.
The spraying layer that reacting gas neutralizer entrance is arranged is 3 layers；The arrangement density of every layer of shower nozzle is 2 shower nozzle/m2；Often
The geometry of layer water-spraying fabric includes square, equilateral triangle；Described shower nozzle includes hollow cone；
Described spraying layer is provided above demister, and demister is bubble cap tray, arranges 2 layers of spraying layer upwards sprayed below demister.
Every layer of spraying layer arranges supervisor, arm, short tube, wherein the 0.2 of a diameter of predominant tube diameter of arm；A diameter of of short tube
The 0.3 of pipe diameter.
After spray equipment shower nozzle sprays, the clearance of the ammonia in reacting gas reaches 99.6%.
[embodiment 4]
A kind of Multi-layer sprinkling device, including housing, reaction gas inlet, reaction gas inlet outlet, reacting gas neutralizer
Entrance, reacting gas neutralizer export, and reaction gas inlet is arranged on the bottom of sprinkling equipment, and reaction gas outlet is arranged on
The top of sprinkling equipment, reacting gas neutralizer entrance is provided in above reaction gas inlet, and reacting gas neutralizer exports
Being arranged on bottom sprinkling equipment, spraying layer is provided above demister,
Wherein, reacting gas neutralizer entrance arranges the Multi-layer sprinkling layer being made up of shower nozzle, Multi-layer sprinkling by geometry arrangement
Distance between Ceng is from top to bottom for being stepped up, and the distance between a upper spraying layer is the distance between next spraying layer
1.45 again.
The spraying layer that reacting gas neutralizer entrance is arranged is 7 layers；The arrangement density of every layer of shower nozzle is 4 shower nozzle/m2；Often
The geometry of layer water-spraying fabric includes equilateral triangle, concentric circular annular；Described shower nozzle is air atomizing shower nozzle；
Described spraying layer is provided above demister, and demister is board-like demister, and the number of plates is 2, arranges 1 below demister
The spraying layer that layer upwards sprays.
Every layer of spraying layer arranges supervisor, arm, short tube, wherein the 0.5 of a diameter of predominant tube diameter of arm；A diameter of of short tube
The 0.5 of pipe diameter.
After spray equipment shower nozzle sprays, the clearance of the ammonia in reacting gas reaches 99.8%.
[embodiment 5]
A kind of Multi-layer sprinkling device, including housing, reaction gas inlet, reaction gas inlet outlet, reacting gas neutralizer
Entrance, reacting gas neutralizer export, and reaction gas inlet is arranged on the bottom of sprinkling equipment, and reaction gas outlet is arranged on
The top of sprinkling equipment, reacting gas neutralizer entrance is provided in above reaction gas inlet, and reacting gas neutralizer exports
Being arranged on bottom sprinkling equipment, spraying layer is provided above demister,
Wherein, reacting gas neutralizer entrance arranges the Multi-layer sprinkling layer being made up of shower nozzle, Multi-layer sprinkling by geometry arrangement
Distance between Ceng is from top to bottom for being stepped up, and the distance between a upper spraying layer is the distance between next spraying layer
1.1 again.
The spraying layer that reacting gas neutralizer entrance is arranged is 1 layer；The arrangement density of every layer of shower nozzle is 2 shower nozzle/m2；Often
The geometry of layer water-spraying fabric includes square, equilateral triangle；Described shower nozzle includes hollow cone；Above described spraying layer
Arranging demister, demister is bubble cap tray, arranges 2 layers of spraying layer upwards sprayed below demister.Every layer of spraying layer arranges master
Pipe, arm, short tube, wherein the 0.2 of a diameter of predominant tube diameter of arm；The 0.3 of short tube a diameter of arm diameter.
Reaction gas inlet arranges gas distributor, and gas distributor pattern is dendroid porous type.
Below reacting gas neutralizer entrance spraying layer, reaction gas inlet is provided above the column plate of 8 pieces of theoretical plates or fills out
Material；Described column plate is float valve；Described filler is grid；The described distance 0.7 meter between Multi-layer sprinkling layer.
After spray equipment shower nozzle sprays, the clearance of the ammonia in reacting gas reaches 99.7%.
[embodiment 6]
A kind of Multi-layer sprinkling device, including housing, reaction gas inlet, reaction gas inlet outlet, reacting gas neutralizer
Entrance, reacting gas neutralizer export, and reaction gas inlet is arranged on the bottom of sprinkling equipment, and reaction gas outlet is arranged on
The top of sprinkling equipment, reacting gas neutralizer entrance is provided in above reaction gas inlet, and reacting gas neutralizer exports
Being arranged on bottom sprinkling equipment, spraying layer is provided above demister,
Wherein, reacting gas neutralizer entrance arranges the Multi-layer sprinkling layer being made up of shower nozzle, Multi-layer sprinkling by geometry arrangement
Distance between Ceng is from top to bottom for being stepped up, and the distance between a upper spraying layer is the distance between next spraying layer
1.1 again.
Using above-mentioned Multi-layer sprinkling device, neutralization method is: be 20 by the weight ratio that temperature is 200 DEG C and reacting gas
Neutralizer spray, with reacting gas counter current contacting by the geometry neutralizer spraying layer that forms of arrangement from by shower nozzle；
Reacting gas after neutralization enters above spraying layer with the speed of 5m/s, enters subsequent absorption system after mist eliminator.
The temperature of the described reacting gas neutralizer contacted with reacting gas is 150 DEG C；Reacting gas neutralizer and reaction gas
The weight ratio of body is 18, and the speed entering the reacting gas above spraying layer is 2m/s；Reacting gas neutralizer recycles.
After spray equipment shower nozzle sprays, the clearance of the ammonia in reacting gas reaches 99.9%.
[embodiment 7]
A kind of Multi-layer sprinkling device, including housing, reaction gas inlet, reaction gas inlet outlet, reacting gas neutralizer
Entrance, reacting gas neutralizer export, and reaction gas inlet is arranged on the bottom of sprinkling equipment, and reaction gas outlet is arranged on
The top of sprinkling equipment, reacting gas neutralizer entrance is provided in above reaction gas inlet, and reacting gas neutralizer exports
Being arranged on bottom sprinkling equipment, spraying layer is provided above demister,
Wherein, reacting gas neutralizer entrance arranges the Multi-layer sprinkling layer being made up of shower nozzle, Multi-layer sprinkling by geometry arrangement
Distance between Ceng is from top to bottom for being stepped up, and the distance between a upper spraying layer is the distance between next spraying layer
1.2 again.
Using above-mentioned Multi-layer sprinkling device, neutralization method is: be 10 by the weight ratio that temperature is 100 DEG C and reacting gas
Neutralizer spray, with reacting gas counter current contacting by the geometry neutralizer spraying layer that forms of arrangement from by shower nozzle；
Reacting gas after neutralization enters above spraying layer with the speed of 2m/s, enters subsequent absorption system after mist eliminator.
The temperature of the described reacting gas neutralizer contacted with reacting gas is 100 DEG C；Reacting gas neutralizer and reaction gas
The weight ratio of body is 10, and the speed entering the reacting gas above spraying layer is 1m/s；Reacting gas neutralizer recycles.
The temperature of the described reacting gas neutralizer contacted with reacting gas is 120 DEG C；Reacting gas cleaning mixture and reaction gas
The weight ratio of body is 16.
The spray flux of described Multi-layer sprinkling layer is from top to bottom for gradually reducing, and the spray flux of Multi-layer sprinkling layer goes up one by weight
The spray flux of spraying layer is the 0.7 of next spraying layer spray flux.
After spray equipment shower nozzle sprays, the clearance of the ammonia in reacting gas reaches 99.8%.
[embodiment 8]
A kind of Multi-layer sprinkling device, including housing, reaction gas inlet, reaction gas inlet outlet, reacting gas neutralizer
Entrance, reacting gas neutralizer export, and reaction gas inlet is arranged on the bottom of sprinkling equipment, and reaction gas outlet is arranged on
The top of sprinkling equipment, reacting gas neutralizer entrance is provided in above reaction gas inlet, and reacting gas neutralizer exports
Being arranged on bottom sprinkling equipment, spraying layer is provided above demister,
Wherein, reacting gas neutralizer entrance arranges the Multi-layer sprinkling layer being made up of shower nozzle, Multi-layer sprinkling by geometry arrangement
Distance between Ceng is from top to bottom for being stepped up, and the distance between a upper spraying layer is the distance between next spraying layer
1.2 again.
Using above-mentioned Multi-layer sprinkling device, neutralization method is: be 10 by the weight ratio that temperature is 100 DEG C and reacting gas
Neutralizer spray, with reacting gas counter current contacting by the geometry neutralizer spraying layer that forms of arrangement from by shower nozzle；
Reacting gas after neutralization enters above spraying layer with the speed of 2m/s, enters subsequent absorption system after mist eliminator.
The temperature of the described reacting gas neutralizer contacted with reacting gas is 100 DEG C；Reacting gas neutralizer and reaction gas
The weight ratio of body is 10, and the speed entering the reacting gas above spraying layer is 1m/s；Reacting gas neutralizer recycles.
The temperature of the described reacting gas neutralizer contacted with reacting gas is 120 DEG C；Reacting gas cleaning mixture and reaction gas
The weight ratio of body is 16.
The spray flux of described Multi-layer sprinkling layer, from top to bottom for gradually reducing, goes up under the spray flux of a spraying layer is by weight
The 1 of one spraying layer spray flux.
After spray equipment shower nozzle sprays, the clearance of the ammonia in reacting gas reaches 99.5%.
[embodiment 9]
Multi-layer sprinkling device, including housing, reaction gas inlet, reaction gas inlet outlet, reacting gas neutralizer entrance,
Reacting gas neutralizer exports, and reaction gas inlet is arranged on the bottom of sprinkling equipment, and reaction gas outlet is arranged on spray and sets
Standby top, reacting gas neutralizer entrance is provided in above reaction gas inlet, and the outlet of reacting gas neutralizer is arranged on
Bottom sprinkling equipment, spraying layer is provided above demister, and wherein, reacting gas neutralizer entrance arranges and pressed geometric form by shower nozzle
The Multi-layer sprinkling layer of shape arrangement composition, the distance between Multi-layer sprinkling layer is from top to bottom for being stepped up, between a upper spraying layer
Distance be 1.05 times of the distance between next spraying layer.
Using above-mentioned Multi-layer sprinkling device, neutralization method is: be 5 by the weight ratio that temperature is 100 DEG C and reacting gas
Neutralizer spray, with reacting gas counter current contacting by the geometry neutralizer spraying layer that forms of arrangement from by shower nozzle；
Reacting gas after neutralization enters above spraying layer with the speed of 4m/s, enters subsequent absorption system after mist eliminator.
The temperature of the described reacting gas neutralizer contacted with reacting gas is 150 DEG C；Reacting gas neutralizer and reaction gas
The weight ratio of body is 5, and the speed entering the reacting gas above spraying layer is 2m/s；Reacting gas neutralizer recycles.
The temperature of the described reacting gas neutralizer contacted with reacting gas is 150 DEG C；Reacting gas cleaning mixture and reaction gas
The weight ratio of body is 12.
The spray flux of described Multi-layer sprinkling layer, from top to bottom for gradually reducing, goes up under the spray flux of a spraying layer is by weight
The 0.9 of one spraying layer spray flux.
After spray equipment shower nozzle sprays, the clearance of the ammonia in reacting gas reaches 99.85%.
Claims (16)
1. a Multi-layer sprinkling device, including housing, reaction gas inlet, reaction gas inlet outlet, the outlet of reacting gas neutralizer entrance, reacting gas neutralizer, reaction gas inlet is arranged on the bottom of sprinkling equipment, reaction gas outlet is arranged on the top of sprinkling equipment, reacting gas neutralizer entrance is provided in above reaction gas inlet, the outlet of reacting gas neutralizer is arranged on bottom sprinkling equipment, and spraying layer is provided above demister
Wherein, reacting gas neutralizer entrance arranges the Multi-layer sprinkling layer being made up of shower nozzle by geometry arrangement, and the distance between Multi-layer sprinkling layer is from top to bottom for being stepped up, and the distance between a upper spraying layer is 1～1.5 times of the distance between next spraying layer.
Multi-layer sprinkling device the most according to claim 1, it is characterised in that on described Multi-layer sprinkling layer, distance between a spraying layer is 1.05～1.4 times of the distance between next spraying layer, and the spraying layer that reacting gas neutralizer entrance is arranged is 1～8 layer；The arrangement density of every layer of shower nozzle is 1～4 shower nozzle/m2；The geometry of every layer of water-spraying fabric includes at least one in square, rectangle, equilateral triangle, concentric circular annular；Described shower nozzle includes at least one in hollow cone, solid-cone, screw type, air atomizing shower nozzle.
Multi-layer sprinkling device the most according to claim 1, it is characterized in that described spraying layer is provided above demister, demister includes at least one in board-like demister, wire mesh demister, bubble cap tray, sieve plate, filler, arranges the spraying layer that 1-2 layer upwards sprays below demister.
Multi-layer sprinkling device the most according to claim 2, it is characterised in that on described Multi-layer sprinkling layer, distance between a spraying layer is 1.1～1.2 times of the distance between next spraying layer, and the neutralizer spraying layer that reacting gas neutralizer entrance is arranged is 2～4 layers；The arrangement density of every layer of shower nozzle is 1～2 shower nozzle/m2。
Multi-layer sprinkling device the most according to claim 2, it is characterised in that every layer of spraying layer arranges supervisor, arm, short tube, wherein the 0.2～0.5 of a diameter of predominant tube diameter of arm；The 0.3～0.5 of short tube a diameter of arm diameter.
The sprinkling equipment neutralizing reaction the most according to claim 3, it is characterised in that the neutralizer spraying layer that described reacting gas neutralizer entrance is arranged is 1～2 layer.
Multi-layer sprinkling device the most according to claim 1, it is characterised in that described reaction gas inlet arranges gas distributor, gas distributor pattern includes the one in semicircle cast, pipe distributor, dendroid porous type, biserial vane type.
Multi-layer sprinkling device the most according to claim 1, it is characterised in that below reacting gas neutralizer entrance spraying layer, reaction gas inlet be provided above column plate or the filler of 1～10 piece of theoretical plate；Described column plate includes at least one in float valve, sieve aperture, bubble-cap, guiding sieve aperture；Described filler includes at least one in grid, structured wire corrugated wire gauze packing, Raschig ring, Pall ring.
Multi-layer sprinkling device the most according to claim 5, it is characterised in that below described reacting gas neutralizer entrance spraying layer, reaction gas inlet be provided above column plate or the filler of 2～6 pieces of theoretical plates.
Multi-layer sprinkling device the most according to claim 1, it is characterised in that the described distance 0.7-1.3 rice between Multi-layer sprinkling layer.
11. 1 kinds of neutralization method, use any one Multi-layer sprinkling device in claim 1～10, and neutralization method includes following several step:
A) by the neutralizer that weight ratio is 0.3～20 ejection from the neutralizer spraying layer being made up of by geometry arrangement shower nozzle that temperature is 50～200 DEG C and reacting gas, with reacting gas counter current contacting；
B) reacting gas after neutralizing enters above spraying layer with the speed of 0.2～5m/s, enters subsequent absorption system after mist eliminator.
12. neutralization method according to claim 11, it is characterised in that the temperature of the described reacting gas neutralizer contacted with reacting gas is 50～150 DEG C；Reacting gas neutralizer is 4.5～18 with the weight ratio of reacting gas, and the speed entering the reacting gas above spraying layer is 0.8～2m/s；Reacting gas neutralizer recycles.
13. neutralization method according to claim 11, it is characterised in that the temperature of the described reacting gas neutralizer contacted with reacting gas is 70～120 DEG C；Reacting gas cleaning mixture is 5～16 with the weight ratio of reacting gas.
14. neutralization method according to claim 11, it is characterised in that the spray flux of described Multi-layer sprinkling layer, from top to bottom for gradually reducing, goes up spray flux is next spraying layer spray flux 0.5～the 1 of a spraying layer by weight.
15. neutralization method according to claim 11, it is characterised in that the spray flux of described Multi-layer sprinkling layer goes up spray flux is next spraying layer spray flux 0.7～the 0.99 of a spraying layer by weight.
16. neutralization method according to claim 12, it is characterised in that the spray flux of described Multi-layer sprinkling layer goes up spray flux is next spraying layer spray flux 0.8～the 0.9 of a spraying layer by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510052350.7A CN105983319B (en) | 2015-01-31 | 2015-01-31 | Multi-layer sprinkling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510052350.7A CN105983319B (en) | 2015-01-31 | 2015-01-31 | Multi-layer sprinkling device |
Publications (2)
| Publication Number | Publication Date |
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| CN105983319A true CN105983319A (en) | 2016-10-05 |
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| CN201510052350.7A Active CN105983319B (en) | 2015-01-31 | 2015-01-31 | Multi-layer sprinkling device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106595334A (en) * | 2016-12-08 | 2017-04-26 | 中山大学 | Water-saving fog-dissipation closed cooling tower with float valve structure |
| CN106767036A (en) * | 2016-11-30 | 2017-05-31 | 深圳市瑞升华科技股份有限公司 | A kind of heat exchanger |
| CN109662895A (en) * | 2017-10-16 | 2019-04-23 | 天津和治药业集团有限公司 | A kind of Chinese medicine softening method and device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11347331A (en) * | 1998-06-10 | 1999-12-21 | Sanki Eng Co Ltd | Air washer |
| CN203777915U (en) * | 2014-04-18 | 2014-08-20 | 中石化南京工程有限公司 | System for treating low-concentration ammonium-contained tail gas |
| CN203777923U (en) * | 2014-03-31 | 2014-08-20 | 英尼奥斯欧洲股份公司 | Improved ammonia removal process for reactor effluents |
| CN203916446U (en) * | 2014-06-16 | 2014-11-05 | 山西太钢不锈钢股份有限公司 | Desulphurization denitration enriched flue gas cooling device |
-
2015
- 2015-01-31 CN CN201510052350.7A patent/CN105983319B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH11347331A (en) * | 1998-06-10 | 1999-12-21 | Sanki Eng Co Ltd | Air washer |
| CN203777923U (en) * | 2014-03-31 | 2014-08-20 | 英尼奥斯欧洲股份公司 | Improved ammonia removal process for reactor effluents |
| CN203777915U (en) * | 2014-04-18 | 2014-08-20 | 中石化南京工程有限公司 | System for treating low-concentration ammonium-contained tail gas |
| CN203916446U (en) * | 2014-06-16 | 2014-11-05 | 山西太钢不锈钢股份有限公司 | Desulphurization denitration enriched flue gas cooling device |
Non-Patent Citations (1)
| Title |
|---|
| 中国环境科学学会: "《中国环境科学学会学术年会优秀论文集 下卷》", 31 December 2006 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767036A (en) * | 2016-11-30 | 2017-05-31 | 深圳市瑞升华科技股份有限公司 | A kind of heat exchanger |
| CN106595334A (en) * | 2016-12-08 | 2017-04-26 | 中山大学 | Water-saving fog-dissipation closed cooling tower with float valve structure |
| CN109662895A (en) * | 2017-10-16 | 2019-04-23 | 天津和治药业集团有限公司 | A kind of Chinese medicine softening method and device |
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| CN105983319B (en) | 2018-04-06 |
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