CN207203799U - A kind of tail gas of sulphur cleaning system - Google Patents
A kind of tail gas of sulphur cleaning system Download PDFInfo
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- CN207203799U CN207203799U CN201721010817.2U CN201721010817U CN207203799U CN 207203799 U CN207203799 U CN 207203799U CN 201721010817 U CN201721010817 U CN 201721010817U CN 207203799 U CN207203799 U CN 207203799U
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Abstract
The utility model discloses a kind of tail gas of sulphur cleaning system, including：Spray tower shell, main body spraying layer and tail end spraying layer；Gas pollutant concentration detection apparatus, gas pollutant concentration detection apparatus are arranged at the gas inlet of spray tower shell；Accident circulating pump；Absorbent body agent regulating；Tail end absorbs agent regulating；Control system, control system absorb agent regulating, accident circulating pump and gas pollutant concentration detection apparatus with absorbent body agent regulating, tail end respectively and are connected.The utility model is uniformly controlled by adding control system, can be ensured realize qualified discharge under all operating modes according to different operating mode quick responses.
Description
Technical field
It the utility model is related to exhaust gas processing device technical field, more particularly to a kind of tail gas of sulphur cleaning system.
Background technology
Sulfur recovery facility is the most key environmental protecting device of oil plant, whether up to standard is responsible for full factory's atmospheric environment index
Substantial responsibility.With the continuous progress of technology, the sulphur recovery efficiency of sulfur recovery facility is up to more than 99.9% at present, only
Micro element sulphur is after tail gas burning furnace burns with SO2Form be discharged into air.As the promulgation of new environmental regulation is held
OK, the tail gas SO of sulphur unit2Concentration of emission requirement is also increasingly strict, and national standard GB31570-2015 is provided under all operating modes, sulphur
SO in the discharge of sulphur device exhaust2The upper limit of concentration is 100mg/Nm3, granular material discharged concentration is less than 50mg/Nm3。
In general, under nominal situation, the SO of the outer last person's gas of sulfur recovery facility2Concentration is less than 100mg/Nm3, still, open
Sulfur content in the tail gas of shut-down condition is then up to 10000mg/Nm3More than, further, since the unstripped gas source of sulphur unit is answered
It is miscellaneous, even under nominal situation, sulfur content may also occur 2-5 times and fluctuate, and have the short time more than 1000mg/Nm3Pole
End situation.Moreover, more severe accident conditions also be present.Current desulfurization technology is developed for stable operating mode mostly, such as
Chinese utility model patent 201520651492.0, patent name be sulfur recovery unit in flue gas sodium method desulfurization unit, the patent
In order to meet new environmental protection standard requirement, a kind of new desulfurization unit is developed, meets the SO in outer last person's gas2Concentration is small
In 100mg/Nm3, still, such device is difficult to tackle under sulphur unit complex working condition, and sulphur emissions whole process is up to standard in emission
Requirement.
Therefore, the applicant is directed to providing a kind of new tail gas of sulphur cleaning system to solve above-mentioned technical problem.
The content of the invention
The purpose of this utility model is to provide a kind of tail gas of sulphur cleaning system, can protect under currently all operating mode in fact
Demonstrate,prove the SO of tail gas2The qualified discharge of concentration.
The technical scheme that the utility model is provided is as follows：
A kind of tail gas of sulphur cleaning system, including：Tower shell is sprayed, the top of the spray tower shell, which is provided with, to be vented out
Mouthful, it is provided with gas inlet in the side wall of bottom；Absorbent body circulatory pool, the absorbent body circulatory pool are arranged at the spray column
The bottom of housing；Tail end absorption cycle pond, the tail end absorption cycle pond are arranged in the spray tower shell, and the tail end is inhaled
Receive the top that circulatory pool is located at the absorbent body circulatory pool；Accident spraying layer and main body spraying layer, the accident spraying layer and
Main body spraying layer is arranged between absorbent body circulatory pool and tail end the absorption cycle pond；Tail end spraying layer, the tail end spray
Drenching layer is arranged at the spray column enclosure interior and between the tail end absorption cycle pond and air exit；Gas pollutant
Concentration detection apparatus, the gas pollutant concentration detection apparatus are arranged at the gas inlet of the spray tower shell；Accident
Circulating pump, the first end of the accident circulating pump connect with the bottom of the absorbent body circulatory pool, the second end and the accident
Spraying layer connects；Absorbent body agent regulating, the absorbent body agent regulating are arranged at the absorbent body circulatory pool
Place；Tail end absorbs agent regulating, and the tail end absorbs agent regulating and is arranged at the tail end absorption cycle Chi Chu；Control system
System, the control system are gentle with the absorbent body agent regulating, tail end absorption agent regulating, accident circulating pump respectively
Body pollution thing concentration detection apparatus connects；When spray column is in the first default operating mode, the control system closes the accident
Circulating pump, the tail gas of sulphur is successively by the gas inlet, main body spraying layer, tail end absorption cycle pond, tail end spraying layer
And air exit；When spray column is in the second default operating mode, the control system opens the accident circulating pump, the sulphur
Tail gas passes sequentially through the gas inlet, accident spraying layer, main body spraying layer, tail end absorption cycle pond, tail end spraying layer and row
Gas exports.
In said structure, SO in tail gas of sulphur is detected by setting gas pollutant concentration detection apparatus2Concentration value, and
By SO in the tail gas of sulphur2Concentration value feeds back to control system, when spray column is in the first default operating mode, is adjusted merely by leading
Absorbent body liquid and the concentration of tail end absorbing liquid in body absorption cycle pond and tail end absorption cycle pond can ensure outer last person's gas
It is lasting up to standard, when spray column is in the second default operating mode, the SO of tail gas of sulphur2Concentration sharply increases, and depends merely on regulation main body and inhales
Receiving the concentration of liquid and tail end absorbing liquid can not meet that outer last person's gas lasts up to target requirement, and now, control system is opened accident and followed
Absorbent body liquid in absorbent body circulatory pool is delivered to accident spraying layer and carries out spray desulfurization, entered by ring pump, accident circulating pump
One step improves desulfurized effect, disclosure satisfy that the SO in tail gas of sulphur2When concentration sharply increases outer last person's gas last up to target will
Ask, and then, the tail gas of sulphur cleaning system of said structure can ensure under all operating modes, and outer last person's gas is gas up to standard.
Preferably, the tail end absorption cycle Chi Chu is provided with some gas passages, and the gas passage connection tail end is inhaled
Receive the both sides up and down of circulatory pool.
Preferably, liquid of the upper surface of the gas passage higher than the tail end absorbing liquid in the tail end absorption cycle pond
Face.
In said structure, the both sides up and down of tail absorption circulatory pool are connected by gas passage, and by the upper of gas passage
End face is designed to the liquid level of the tail end absorbing liquid higher than tail end absorption cycle pond, can ensure the downside gas in tail end absorption cycle pond
Body can pass through the upside that gas passage enters tail end absorption cycle pond, will not enter gas passage due to tail end absorbing liquid
Circulation that is interior and hindering gas.
Preferably, the absorbent body agent regulating includes：Absorbent body agent regulating valve and the inspection of absorbent body agent concentration
Survey instrument；The absorbent body agent regulating valve connects with the absorbent body circulatory pool, is circulated for adjusting to the absorbent body
The amount of absorbent body agent is added in pond；The absorbent body agent concentration detector connects with the absorbent body circulatory pool, is used for
Detect the concentration of absorbent body liquid in the absorbent body circulatory pool；The tail end, which absorbs agent regulating, to be included：Tail end absorbs
Agent regulating valve and tail end concentration of absorbing detector；The tail end absorbent regulating valve connects with the tail end absorption cycle pond,
For in the tail end absorption cycle pond add tail end absorbent；The tail end concentration of absorbing detector is inhaled with the tail end
Receive circulatory pool connection, the concentration of the tail end absorbing liquid for detecting the tail end absorption cycle pond；The control system respectively with
The absorbent body agent regulating valve, absorbent body agent concentration detector, tail end absorbent regulating valve, the detection of tail end concentration of absorbing
Instrument connects with accident circulating pump.
In said structure, absorbent body agent regulating absorbs agent regulating with tail end and is respectively provided with regulating valve and concentration inspection
Instrument is surveyed, the concentration of absorbing liquid can be detected in real time by concentration detector and feed back to control system, control system passes through feedback
Absorbent body liquid and tail end absorbing liquid concentration data combination gas pollutant concentration detection apparatus feedback tail gas of sulphur
SO2Concentration value carries out calculation process, and then draws more accurate absorbent body agent addition, tail end absorbent addition and thing
Therefore the opening and closing of circulating pump, it can realize and more be accurately controlled.
Preferably, the tail gas of sulphur cleaning system also includes：Demister, the demister are arranged at the spray tower casing
Internal portion and between the tail end spraying layer and air exit.
In said structure, by setting demister, the droplet of the 3-5um except can going in last person's gas, and then avoid outer
After last person's gas discharge spray column, the equipment of surrounding is caused to corrode.
Preferably, the tail gas of sulphur cleaning system also includes：Heat exchanger, the heat exchanger enter provided with heat exchanger tail gas
Mouth, the outlet of heat exchanger cooled exhaust gas, cool air inlet and hot air outlet；Air blower, the air blower and the heat exchange
The air intake connection of device；The heat exchanger cooled exhaust gas outlet of the heat exchanger and the gas inlet of the spray tower shell connect
It is logical.
,, can using the temperature difference of air and tail gas of sulphur because the temperature of tail gas of sulphur is general higher in said structure
A precooling is first carried out to tail gas of sulphur, and then the cooling water consumption more than 30% of tail gas of sulphur can be saved.
Preferably, the tail gas of sulphur cleaning system also includes：Air sparger, the air sparger are located at the spray
Drench in tower shell and between the demister and air exit, the air sparger is provided with hot air inlet, the heat
Air intake connects with the hot air outlet of the heat exchanger.
In said structure, the hot-air discharged using heat exchanger is mixed with outer last person's gas, can effectively improve outer row
The temperature of tail gas, and then ensure that outer last person's gas is in hypersaturated state, and then white cigarette will not be produced when discharging spray column, and then
Equipment near spray column will not be polluted and corroded.
Preferably, it is provided with chilling spraying layer at the gas inlet of the spray tower shell.
A kind of tail gas of sulphur cleaning system provided by the utility model, can bring following beneficial effect：
The utility model provides a kind of tail gas of sulphur cleaning system, can be by measuring in advance into the sulphur in spray column
The SO of sulphur tail gas2Concentration value simultaneously feeds back to control system, so as to which control system is according to the SO of the tail gas of sulphur received2Concentration
Be worth the concentration of absorbent body liquid changed in real time in spray column, the concentration of tail end absorbing liquid and accident circulating pump beats on or off
Close, ensure under all operating modes, control system can quick response.And instruction is sent in time, ensure that outer last person's gas is always to reach
Mark tail gas.
Brief description of the drawings
Below by a manner of clearly understandable, preferred embodiment is described with reference to the drawings, to tail gas of sulphur cleaning system
Above-mentioned characteristic, technical characteristic, advantage and its implementation are further described.
Fig. 1 is a kind of structural representation of embodiment of tail gas of sulphur cleaning system of the present utility model；
Fig. 2 is the structural representation of another embodiment of tail gas of sulphur cleaning system of the present utility model.
Drawing reference numeral explanation：
1- spray columns, 1a- chilling spraying layers, 1b- accident spraying layers, 1c- main body spraying layers, 1d- tail end spraying layers, 1f-
Tail end absorption cycle pond, 1g- gas passages, 1h- absorbent body circulatory pools, 1i- spray tower shells, 2- control systems, 3- main bodys
Absorb agent regulating, 3a- absorbent body agent regulating valves, 3b- absorbent body agent concentration detectors, 4- tail ends absorbent regulation dress
Put, 4a- tail end absorbent regulating valves, 4b- tail end concentration of absorbing detectors, 5- accident circulating pumps, 6- main body Sprayer Circulation pumps,
7- tail end Sprayer Circulation pumps, 8- demisters, 9- heat exchangers, 10- air blowers, 11- air spargers, A- tail gas of sulphur, outside B-
Last person's gas, C- air.
Embodiment
In order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art, accompanying drawing will be compareed below
Illustrate specific embodiment of the present utility model.It should be evident that drawings in the following description are only of the present utility model one
A little embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to these
Accompanying drawing obtains other accompanying drawings, and obtains other embodiments.
To make simplified form, the part related to the utility model is only schematically show in each figure, they are simultaneously
Its practical structures as product is not represented.
【Embodiment 1】
As shown in figure 1, embodiment 1 discloses a kind of embodiment of tail gas of sulphur cleaning system, including：Spray column
Housing 1i, spray tower shell 1i top are provided with air exit (not marked in figure), are provided with gas inlet in the side wall of bottom, set
It is placed in the absorbent body circulatory pool 1h of spray tower shell 1i bottom, the tail end absorption cycle pond being arranged in spray tower shell 1i
The 1f and accident spraying layer 1b being arranged between absorbent body circulatory pool 1h and tail end absorption cycle pond 1f and main body spraying layer 1c,
The tail end spraying layer 1d being arranged between tail end absorption cycle pond 1f and air exit.
Wherein, spray and be provided with gas-detecting device (not marked in figure) and chilling spraying layer at tower shell 1i gas inlet
1a, gas-detecting device, which is used to detect, is passed through SO in the tail gas of sulphur A in spray column 12Concentration, chilling spraying layer 1a are used for sulphur
Sulphur tail gas A carries out cooling, desulfurizing.
Also include：Accident circulating pump 5, the absorbent body agent regulating 3 for being arranged at 1h at absorbent body circulatory pool, set
Agent regulating 4 and control system 2 are absorbed in tail end absorption cycle Chi1fChu tail end, wherein, accident circulating pump 5, main body are inhaled
Receipts agent regulating 3, tail end absorb agent regulating 4 and are connected respectively with control system 2, and control system 2 is also detected with gas and filled
Put connection.
The first end of accident circulating pump 5 connects with absorbent body circulatory pool 1h bottom, the second end of accident circulating pump 5 with
Accident spraying layer 1b is connected, and the absorbent body liquid in absorbent body circulatory pool 1h is delivered to accident spraying layer 1 by accident circulating pump 5
Carry out spray desulfurization.Absorbent body agent regulating 3 is used for the concentration for adjusting the absorbent body liquid in absorbent body circulatory pool 1h,
Tail end absorbs the concentration that agent regulating 4 is used to adjust the tail end absorbing liquid in tail end absorption cycle pond 1f.
The workflow of control system 2 is as described below：
Control system 2 receives the SO for coming from the tail gas of sulphur A that gas-detecting device transmission comes2Concentration value, it is pre- with first
If SO2The size of concentration value is compared.
If tail gas of sulphur A SO2Concentration value >=the first presets SO2Concentration value, control system 2 will start accident circulating pump 5.
Now, the accident spraying layer 1b connected with accident circulating pump 5 proceeds by spray desulfurization work.Simultaneously according to the sulphur received
Tail gas A SO2Concentration value, which is calculated, needs what is added respectively into absorbent body circulatory pool 1h and tail end absorption cycle pond 1f
The amount of absorbent body agent and the amount of tail end absorbent, and correspond to be delivered to absorbent body agent regulating 3 and tail end absorption respectively
Agent regulating 4, so as to adjust the concentration of absorbent body liquid and tail end absorbing liquid.
If tail gas of sulphur A SO2Concentration value ＜ first presets SO2Concentration value, control system 2 is according to the sulphur tail received
Gas A SO2The master for needing to be added respectively into absorbent body circulatory pool 1h and tail end absorption cycle pond 1f is calculated in concentration value
The amount of body absorbent and the amount of tail end absorbent, and correspond to be delivered to absorbent body agent regulating 3 and tail end absorbent respectively
Adjusting means 4, so as to adjust the concentration of absorbent body liquid and tail end absorbing liquid, now, accident circulating pump 5 is closed,
Accident spraying layer 1b is without spraying desulfurization work.
The opening and closing of adjustment and accident circulating pump 5 under above two situation to absorbent body liquid and the concentration of tail end absorbing liquid
To reach outer last person's gas B SO2Concentration meets the second default SO2Concentration value.
Wherein, the first default SO2Concentration value is an artificial defined value, and analog value is taken according to the difference of actual conditions,
Institute's value is according to whether opening accident spray pump and then realizing under all operating modes to be tail gas up to standard to determine.
By add a control system 2 be uniformly controlled the state of accident circulating pump 5 and absorbent body circulatory pool 1h with
The concentration value of absorbent body liquid and tail end absorbing liquid in tail end absorption cycle pond 1f, can realize the sulphur tail under all operating modes
Gas A, which is passed through after spray column 1, can guarantee that outer last person's gas B meets environmental requirement.
【Embodiment 2】
As shown in figure 1, embodiment 2, on the basis of embodiment 1, the tail end absorption cycle Chi1fChu of embodiment 2 is provided with 4
Gas passage 1g, the gas passage 1g connection tail end absorption cycle pond 1f both sides up and down, and gas passage 1g upper surface is high
In the liquid level of the tail end absorbing liquid in tail end absorption cycle pond 1f, ensure that tail end absorbing liquid will not be due to higher than gas passage 1g's
Upper surface and enter in gas passage 1g, and then block gas passage 1g, hinder passing through for gas.
【Embodiment 3】
As shown in figure 1, embodiment 3 is on the basis of embodiment 1 or 2, the absorbent body agent regulating 3 in embodiment 3
Including：Absorbent body agent regulating valve 3a and absorbent body agent concentration detector 3b, absorbent body agent regulating valve 3a and absorbent body
Circulatory pool 1h is connected, and adds the amount of absorbent body agent, the inspection of absorbent body agent concentration into absorbent body circulatory pool 1h for adjusting
Survey instrument 3b to connect with absorbent body circulatory pool 1h, the concentration of the absorbent body liquid for detecting absorbent body circulatory pool 1h.
Tail end, which absorbs agent regulating 4, to be included：Tail end absorbent regulating valve 4a and tail end concentration of absorbing detector 4b, tail
End absorbent regulating valve 4a is connected with tail end absorption cycle pond 1f, and tail end suction is added in caudad absorption cycle pond 1f for adjusting
The amount of agent is received, tail end concentration of absorbing detector 4b connects with tail end absorption cycle pond 1f, for detecting tail end absorption cycle pond
The concentration of 1f tail end absorbing liquid.
Wherein, control system 2 is inhaled with absorbent body agent regulating valve 3a, absorbent body agent concentration detector 3b, tail end respectively
Receive agent regulating valve 4a, tail end concentration of absorbing detector 4b and accident circulating pump 5 to connect, realization is uniformly controlled.
Absorbent body agent concentration detector 3b and tail end concentration of absorbing detector 4b detect absorbent body circulatory pool respectively
1h and tail end absorption cycle pond 1f concentration simultaneously feeds back to control system 2, and control system 2 is by handling the tail gas of sulphur received
A SO2Concentration value, absorbent body liquid concentration value and tail end absorbing liquid concentration value, absorbent body agent regulating valve 3a is obtained to main body
What the amount of the absorbent body agent added in the 1h of absorption cycle pond, tail end absorption cycle pond 1f were caudad added in the 1f of absorption cycle pond
The amount and accident circulating pump 5 of tail end absorbent are opened or closed, and instruction is transferred into corresponding device and performs corresponding operation.
The present embodiment is by setting absorbent body agent concentration detector 3b and tail end concentration of absorbing detector 4b being capable of essence
The really concentration of measurement absorbent body liquid and tail end absorbing liquid, is further ensured that under all operating modes, outer last person's gas B can reach all the time
Mark, does not cause air pollution.
【Embodiment 4】
As shown in figure 1, embodiment 4, on the basis of embodiment 1~3, embodiment 4 also includes demister 8, the demister 8
Inside spray tower shell 1i and between tail end spraying layer 1d and air exit.
By setting demister 8, the droplet of the 3-5um in exclusive tail gas can be effectively removed, so as to avoid outer last person's gas B
Because water content is big, the equipment of surrounding is caused to corrode.
【Embodiment 5】
As shown in Fig. 2 embodiment 5, on the basis of embodiment 1~4, embodiment 5 also includes：Heat exchanger 9 and air blower
10, wherein, heat exchanger 9 is provided with heat exchanger gas inlet, the outlet of heat exchanger cooled exhaust gas, cool air inlet and hot-air and gone out
Mouthful.Air blower 10 connects with the air intake of heat exchanger 9, the outlet of heat exchanger cooled exhaust gas and the spray tower shell of heat exchanger 9
1i gas inlet connection.Air C enters from the air intake of air blower 10, heat absorption when carrying out heat exchange into heat exchanger 9
Temperature raises.
By first carrying out a heat exchange with air C before tail gas of sulphur A is passed into spray column 1, precooling is carried out, is reduced
Tail gas of sulphur A temperature, the water consumption of the chilling spraying layer 1a at spray tower shell 1i gas inlet can be substantially reduced,
Compared to not using heat exchanger 9 first to carry out the situation of precooling, water consumption more than 30% can be saved.
【Embodiment 6】
As shown in Fig. 2 embodiment 6, on the basis of embodiment 5, embodiment 6 also includes：Air sparger 11, air point
In spray tower shell 1i and between demister 8 and air exit, air sparger 11 enters cloth device 11 provided with hot-air
Mouthful, hot air inlet connects with the hot air outlet of heat exchanger 9., will be hot empty for receiving the hot-air heated by heat exchanger 9
Gas is well mixed with outer last person's gas B, and then improves outer last person's gas B temperature so that outer last person's gas B is in hypersaturated state all the time
And be unlikely to condense, avoid that the equipment near spray column 1 is caused to corrode and polluted.
【Embodiment 7】
As depicted in figs. 1 and 2, on the basis of embodiment 1~6, embodiment 7 also includes embodiment 7：Main body Sprayer Circulation
Pump 6 and tail end Sprayer Circulation pump 7, wherein, the first end of main body Sprayer Circulation pump 6 connects with absorbent body circulatory pool 1h bottom
Logical, the second end connects with chilling spraying layer 1a and main body spraying layer 1c respectively, and first end and the tail end of tail end Sprayer Circulation pump 7 are inhaled
Circulatory pool 1f bottom connection is received, the second end connects with tail end spraying layer 1d.Realization body absorption cycle pond 1h absorbs with tail end
Absorbent body liquid in circulatory pool 1f recycles with tail end absorbing liquid, saves the energy.
【Embodiment 8】
Embodiment 8 discloses a kind of control method of tail gas of sulphur cleaning system, comprises the following steps：
S100：Obtain the SO of the tail gas of sulphur at the gas inlet of spray tower shell2Concentration value；
S200：As the SO of tail gas of sulphur2Concentration value >=the first preset SO2Concentration value, S300 is performed, when tail gas of sulphur
SO2Concentration value ＜ first preset SO2Concentration value, perform S400；
S300：Control system opens accident circulating pump, and controls the regulation absorbent body circulation of absorbent body agent regulating
The concentration of absorbent body liquid in pond, control tail end absorb the tail end absorbing liquid in agent regulating regulation tail end absorption cycle pond
Concentration so that spray the SO of outer last person's gas of the air exit of tower shell2Concentration value≤the second presets SO2Concentration value；
S400：Control system closes accident circulating pump, and controls the regulation absorbent body circulation of absorbent body agent regulating
The concentration of absorbent body liquid in pond, control tail end absorb the tail end absorbing liquid in agent regulating regulation tail end absorption cycle pond
Concentration so that spray the SO of outer last person's gas of the air exit of tower shell2Concentration value≤the second presets SO2Concentration value.
Specifically, SO of the concentration of the absorbent body liquid in step S300 according to tail gas of sulphur2Concentration value it is corresponding from the
One preset concentration becomes the second preset concentration, the SO of the concentration of tail end absorbing liquid also according to tail gas of sulphur2Concentration value it is corresponding from
3rd preset concentration becomes the 4th preset concentration, in step S400 the change of absorbent body liquid concentration and tail end absorbing liquid concentration with
Step S300 is consistent.
Wherein, the first default SO2For concentration value to be manually set, first in the present embodiment presets SO2Concentration value and embodiment
The first default SO in 12Concentration value is same numerical value, and second presets SO2Concentration value is used for the SO for limiting outer last person's gas2Concentration, enter
And the second default SO2The value of concentration value is necessary≤international standard SO2Concentration value, as the case may be specific value.
It should be noted that above-described embodiment can independent assortment as needed.Described above is only of the present utility model
Preferred embodiment, it is noted that for those skilled in the art, do not departing from the utility model principle
On the premise of, some improvements and modifications can also be made, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (8)
- A kind of 1. tail gas of sulphur cleaning system, it is characterised in that including：Tower shell is sprayed, the top of the spray tower shell is provided with air exit, gas inlet is provided with the side wall of bottom；Absorbent body circulatory pool, the absorbent body circulatory pool are arranged at the bottom of the spray tower shell；Tail end absorption cycle pond, the tail end absorption cycle pond are arranged in the spray tower shell, the tail end absorption cycle Pond is located at the top of the absorbent body circulatory pool；Accident spraying layer and main body spraying layer, the accident spraying layer and main body spraying layer are arranged at the absorbent body circulatory pool Between tail end absorption cycle pond；Tail end spraying layer, the tail end spraying layer are arranged at the spray column enclosure interior and are located at the tail end absorption cycle pond Between air exit；Gas pollutant concentration detection apparatus, the gas pollutant concentration detection apparatus are arranged at the tail of the spray tower shell Gas porch；Accident circulating pump, the first end of the accident circulating pump connect with the bottom of the absorbent body circulatory pool, the second end with The accident spraying layer connection；Absorbent body agent regulating, the absorbent body agent regulating are arranged at the absorbent body circulatory pool；Tail end absorbs agent regulating, and the tail end absorbs agent regulating and is arranged at the tail end absorption cycle Chi Chu；Control system, the control system absorb agent regulating, accident with the absorbent body agent regulating, tail end respectively Circulating pump connects with gas pollutant concentration detection apparatus；When spray column is in the first default operating mode, the control system closes the accident circulating pump, the tail gas of sulphur according to It is secondary to pass through the gas inlet, main body spraying layer, tail end absorption cycle pond, tail end spraying layer and air exit；When spray column is in the second default operating mode, the control system opens the accident circulating pump, the tail gas of sulphur according to It is secondary to pass through the gas inlet, accident spraying layer, main body spraying layer, tail end absorption cycle pond, tail end spraying layer and air exit.
- 2. tail gas of sulphur cleaning system according to claim 1, it is characterised in that：The tail end absorption cycle Chi Chu is provided with some gas passages, and the gas passage connects the upper of tail end absorption cycle pond Lower both sides.
- 3. tail gas of sulphur cleaning system according to claim 2, it is characterised in that：Liquid level of the upper surface of the gas passage higher than the tail end absorbing liquid in the tail end absorption cycle pond.
- 4. tail gas of sulphur cleaning system according to claim 1, it is characterised in that：The absorbent body agent regulating includes：Absorbent body agent regulating valve and absorbent body agent concentration detector；The absorbent body agent regulating valve connects with the absorbent body circulatory pool, for adjusting to the absorbent body circulatory pool The middle amount for adding absorbent body agent；The absorbent body agent concentration detector connects with the absorbent body circulatory pool, for detecting the absorbent body circulation The concentration of absorbent body liquid in pond；The tail end, which absorbs agent regulating, to be included：Tail end absorbent regulating valve and tail end concentration of absorbing detector；The tail end absorbent regulating valve connects with the tail end absorption cycle pond, for in the tail end absorption cycle pond plus Enter tail end absorbent；The tail end concentration of absorbing detector connects with the tail end absorption cycle pond, for detecting the tail end absorption cycle The concentration of the tail end absorbing liquid in pond；The control system is adjusted with the absorbent body agent regulating valve, absorbent body agent concentration detector, tail end absorbent respectively Section valve, tail end concentration of absorbing detector connect with accident circulating pump.
- 5. tail gas of sulphur cleaning system according to claim 1, it is characterised in that also include：Demister, the demister be arranged at the spray column enclosure interior and positioned at the tail end spraying layer and air exit it Between.
- 6. tail gas of sulphur cleaning system according to claim 5, it is characterised in that also include：Heat exchanger, the heat exchanger are provided with heat exchanger gas inlet, the outlet of heat exchanger cooled exhaust gas, cool air inlet and hot-air Outlet；Air blower, the air blower connect with the air intake of the heat exchanger；The heat exchanger cooled exhaust gas outlet of the heat exchanger connects with the gas inlet of the spray tower shell.
- 7. tail gas of sulphur cleaning system according to claim 6, it is characterised in that also include：Air sparger, the air sparger in the spray tower shell and positioned at the demister and air exit it Between, the air sparger is provided with hot air inlet, and the hot air inlet connects with the hot air outlet of the heat exchanger.
- 8. tail gas of sulphur cleaning system according to claim 1, it is characterised in that：Chilling spraying layer is provided with the gas inlet of the spray tower shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721010817.2U CN207203799U (en) | 2017-08-14 | 2017-08-14 | A kind of tail gas of sulphur cleaning system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721010817.2U CN207203799U (en) | 2017-08-14 | 2017-08-14 | A kind of tail gas of sulphur cleaning system |
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| CN207203799U true CN207203799U (en) | 2018-04-10 |
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| CN201721010817.2U Active CN207203799U (en) | 2017-08-14 | 2017-08-14 | A kind of tail gas of sulphur cleaning system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114028886A (en) * | 2021-10-29 | 2022-02-11 | 青岛诺诚化学品安全科技有限公司 | Recovery system and method for scattered flue gas in liquid sulfur loading process |
-
2017
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114028886A (en) * | 2021-10-29 | 2022-02-11 | 青岛诺诚化学品安全科技有限公司 | Recovery system and method for scattered flue gas in liquid sulfur loading process |
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