CN206746300U - A kind of absorption tower with selective serum recycle system - Google Patents
A kind of absorption tower with selective serum recycle system Download PDFInfo
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- CN206746300U CN206746300U CN201720314516.2U CN201720314516U CN206746300U CN 206746300 U CN206746300 U CN 206746300U CN 201720314516 U CN201720314516 U CN 201720314516U CN 206746300 U CN206746300 U CN 206746300U
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- slurries
- absorption tower
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- spray
- slurry pool
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 42
- 210000002966 Serum Anatomy 0.000 title claims abstract description 23
- 239000002002 slurry Substances 0.000 claims abstract description 96
- 239000007921 spray Substances 0.000 claims abstract description 64
- 239000007788 liquid Substances 0.000 claims abstract description 24
- 239000012530 fluid Substances 0.000 claims abstract description 10
- 239000003546 flue gas Substances 0.000 claims abstract description 7
- UGFAIRIUMAVXCW-UHFFFAOYSA-N carbon monoxide Chemical compound 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[O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 6
- 229910052602 gypsum Inorganic materials 0.000 claims description 9
- 239000010440 gypsum Substances 0.000 claims description 9
- 230000003647 oxidation Effects 0.000 claims description 9
- 238000007254 oxidation reaction Methods 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 2
- 239000000779 smoke Substances 0.000 claims description 2
- 235000019504 cigarettes Nutrition 0.000 claims 1
- 238000006477 desulfuration reaction Methods 0.000 abstract description 10
- 238000005507 spraying Methods 0.000 abstract 1
- 230000003009 desulfurizing Effects 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N calcium Chemical compound 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[Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 2
- 239000011575 calcium Substances 0.000 description 2
- 229910052791 calcium Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 230000037250 Clearance Effects 0.000 description 1
- 208000003098 Ganglion Cysts Diseases 0.000 description 1
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- 230000005484 gravity Effects 0.000 description 1
- 230000002045 lasting Effects 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N magnesium Chemical compound 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[Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000002441 reversible Effects 0.000 description 1
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Abstract
A kind of absorption tower with selective serum recycle system, include spray fluid circulation and serum recycle system in tower body, the spray fluid circulation is provided with Multi-layer sprinkling liquid spray pipeline in the middle part of the tower body of absorption tower, the serum recycle system includes high ph-values slurry pool, circulating pump is provided with by this high ph-values slurry pool side, and high ph-values slurries spray pipeline is connected with absorption tower tower body top by this circulating pump, this high ph-values slurries spray pipeline is higher than the spray liquid spray pipeline in spray fluid circulation, and the slurries collection device passed through for flue gas is provided between high ph-values slurries spray pipeline and spray liquid spray pipeline, and the collecting terminal of the slurries collection device is then connected by pipeline with high ph-values slurry pool.The utility model is simple to operate, does not increase external equipment additionally, can meet the operation demand of existing desulfuration absorbing tower minimum discharge spraying layer to greatest extent.
Description
Technical field
Desulphurization plant technical field is the utility model is related to, is specially that one kind is applied to boiler of power plant, industrial boiler desulfurizing
The selective serum recycle system on absorption tower.
Background technology
Wet desulphurization occuping market is dominated at present, currently in order to reaching more preferable desulfurization operation effect or minimum discharge
It is required that absorption tower passes through the two-level absorption tower for being provided with series connection or external independent secondary tower（Single column Two-way Cycle）To obtain high pH value
Slurries carry out desulphurization circulating, and finally obtain more preferable desulfurized effect.But two level tower of the prior art absorbs or single column
The shortcomings of binary cycle system generally existing is disposably put into greatly, and operational outfit is more, complex operation, and equipment failure rate is high, thus have
Necessity makes improvements.
Utility model content
The technical problem that the utility model solves is to provide a kind of absorption tower with selective serum recycle system,
This serum recycle system can effectively meet the production link demand of the high pH value slurries of enterprise's desulfurization minimum discharge, while this is grasped
Make simple, it is not necessary to add any equipment more, desulfurization operation expense is effectively reduced, to solve the shortcomings that in above-mentioned background technology.
The technical problem that the utility model solves is realized using following technical scheme：
A kind of absorption tower with selective serum recycle system, its tower body is interior to include spray fluid circulation and slurries
The circulatory system, the spray fluid circulation are provided with Multi-layer sprinkling liquid spray pipeline, the slurries in the middle part of the tower body of absorption tower
The circulatory system includes high ph-values slurry pool, circulating pump is provided with by this high ph-values slurry pool side, and inhaling by this circulating pump
Receive tower tower body top and be connected with high ph-values slurries spray pipeline, this high ph-values slurries spray pipeline is higher than in spray fluid circulation
Spray liquid spray pipeline, and be provided with what is passed through for flue gas between high ph-values slurries spray pipeline and spray liquid spray pipeline
Slurries collection device, and the collecting terminal of the slurries collection device is then connected by pipeline with high ph-values slurry pool.
In the utility model, the slurries collection device is multistage funnel structure, the most upper rank of this multistage funnel it is upper
Surface outer diameter is consistent with absorption tower internal diameter, and the lower rank upper surface external diameter in adjacent rank is slightly larger than upper rank lower surface external diameter with convenient
Slurries are collected, meanwhile, also leave the gap passed through for flue gas between the adjacent rank of the multistage funnel.
In the utility model, the slurries collection device is that multistage funnel structure is preferably two ranks or three rank infundibular ganglions
Structure.
In the utility model, the smoke inlet of the absorption tower tower body is located under spray liquid spray pipeline.
In the utility model, the high ph-values slurry pool top is provided with fresh slurry inlet, and is then set in bottom
Be equipped with gypsum slurries outlet and bottom drain, and the gypsum slurries outlet directly with absorption tower tower reactor slurries area phase
Even.
In the utility model, the oxidation wind for extending into high ph-values slurry pool bottom is provided with the high ph-values slurry pool
Pipe, be passed through oxidation air into high ph-values slurry pool by oxidation air effectively can prevent from sinking to carry out desulfurization product oxidation
Starch precipitates.
In the utility model, agitating device is provided with the high ph-values slurry pool.
In the utility model, slurries parameter on-line monitoring device is provided with the high ph-values slurry pool, it is described online
Monitoring device includes online PH sensor, online serum density sensor.
The advantages of the utility model and beneficial effect are：
1）Desulfuration efficiency is high, fully meets minimum discharge demand
2）It is improved under conventional process conditions, its technical maturity, stable performance, security performance is high.
3）Equipment is once invested small, and fault rate is low, easy to operate reliable, and the limited space that is particularly suitable for use in puies forward mark transformation work
Journey.
4）Automation degree of equipment is high, and service life length, high pH value slurry room slurries are not required to processing and are directly discharged into absorption tower
Tower reactor slurries area participates in the circulation of high-sulfur area, thus need not additionally increase gypsum processing apparatus, and attached corollary equipment is few, running cost
With low.
Brief description of the drawings
Fig. 1 is the schematic diagram of the utility model preferred embodiment.
Wherein：1st, slurries collection device；2nd, upper strata spray liquid spray pipeline；3rd, lower floor's spray liquid spray pipeline；4th, flue gas
Import；5th, spray liquid circulating pump；6th, absorption tower tower reactor slurries area；7th, gypsum slurries outlet；8th, bottom drain；9th, high pH value
Slurry circulating pump；10th, agitator；11st, on-Line Monitor Device；12nd, oxidation air；13rd, high pH value slurry pool；14th, fresh slurry
Inlet；15th, serum recycle pipeline；16th, high pH value slurries recovery pipe；17th, high ph-values slurries spray pipeline.
Embodiment
In order that technological means, creation characteristic, reached purpose and effect that the utility model is realized are easy to understand, under
Face combines and is specifically illustrating, and the utility model is expanded on further.
Referring to a kind of preferred embodiment on Fig. 1 absorption tower with selective serum recycle system, in the present embodiment,
Absorption tower is for the absorption tower run under the conditions of minimum discharge, its desired SO2Concentration of emission≤35mg/Nm3；Suitable for calcium
The wet desulphurization environment such as method, magnesium processes, filter calcium desulfurizing.
Include spray fluid circulation and serum recycle system in the absorbing tower body, wherein, spray fluid circulation
Including spray liquid circulating pump 5 and the circulation line being connected with spray liquid circulating pump 5, this circulation line top connection upper strata spray
Liquid spray pipeline 2 and lower floor's spray liquid spray pipeline 3 and gas approach 4 is then molded under lower floor's spray liquid spray pipeline 3
Absorbing tower side by.And the main body in serum recycle system is high ph-values slurry pool 13, this top of high ph-values slurry pool 13
High ph-values slurries spray pipeline 17 is connected by serum recycle pipeline 15, and is provided with the bottom of high ph-values slurries spray pipeline 17
Surface outer diameter two rank funnel structures consistent with footpath in absorbing tower body in the top are as slurries absorption plant 1, and this slurries is inhaled
Gap is left between the not same order of two rank funnel structures of receiving apparatus 1, and the lower rank upper surface external diameter in adjacent rank is slightly larger than upper
Rank lower surface external diameter.
Because the lower rank upper surface external diameter in slurries absorption plant 1 is slightly larger than upper rank lower surface external diameter so that high ph-values are starched
In spray, spray liquid energy drops onto on lower stage structure liquid spray pipeline 17 along upper rank inside edge, and at lower stage structure bottom
Portion is recovered in slurries absorption plant 1 by high pH value slurries recovery pipe 16, and flue gas is by upper strata spray liquid spray pipeline 2
And lower floor's spray liquid spray pipeline 3 spray after continue up, and from the gap between the lower rank and upper rank of slurries absorption plant 1
In by and via the slurries that are sprayed in high ph-values slurries spray pipeline 17 carry out SO2Absorption.
Meanwhile the agitator 10 stretched into high pH value slurry pool 13, on-line monitoring are provided with high pH value slurry pool 13
Device 11, oxidation air 12, fresh slurry inlet 14 and the bottom drain 8 for cleaning and maintenance, whole absorption tower
Serum recycle system is operationally the reversible reaction for preventing desulfurization product, and high pH value slurry pool 13 is by blasting oxidation air 12
Oxidation air is aoxidized desulfurization product, forms stable gypsum product.Meanwhile by agitator 10 in high pH value slurry pool 13
Interior lasting stirring prevents gypsum from being deposited in high PH slurry rooms.
And on-Line Monitor Device 11 includes online pH sensors and online serum density sensor.Due to the present embodiment
SO is carried out for low-sulfur area flue gas2Absorption and removing.Because this region SO2 comparision contents are low, reach minimum discharge standard,
This region need to have high pH value slurries（9~11）As guarantee, higher clearance is can be only achieved, is set according to desulfurization removal efficiency
The setting range of line pH sensors is pH value 9 ~ 11, when pH value is less than 9 in high pH value slurry pool 13, is then noted by fresh slurry
Entrance 14 is automatically replenished fresh slurry.And with the continuous absorption cycle of slurries in high pH value slurry pool 13, slurry specific gravity increase
Proportion can gradually increase, when online serum density sensor detect the proportion of slurries increase to setting critical value when（At this
It is 1100Kg/m in embodiment3）, then the discharge part slurries of gypsum slurries outlet 7 are opened to absorption tower tower reactor slurries area 6, together
When by fresh slurry inlet 14 supplement part fresh slurry to improve plasm PH value, to meet serum recycle requirement and ensure
Desulfuration efficiency.Whole operation process can be realized unattended, and manipulation is convenient, reliable.
The advantages of general principle of the present utility model, principal character and the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, on the premise of the spirit and scope of the utility model is not departed from, the utility model is also
Various changes and modifications are had, these changes and improvements are both fallen within claimed the scope of the utility model.The utility model
Claimed scope is by appended claims and its equivalent thereof.
Claims (9)
1. a kind of absorption tower with selective serum recycle system, it is characterised in that include spray fluid circulation in tower body
And serum recycle system, the spray fluid circulation are provided with Multi-layer sprinkling liquid spray pipeline in the middle part of the tower body of absorption tower,
The serum recycle system includes high ph-values slurry pool, is provided with circulating pump by this high ph-values slurry pool side, and follow by this
Ring pump is connected with high ph-values slurries spray pipeline on absorption tower tower body top, and this high ph-values slurries spray pipeline follows higher than spray liquid
Spray liquid spray pipeline in loop system, and be provided between high ph-values slurries spray pipeline and spray liquid spray pipeline for cigarette
The slurries collection device that gas passes through, and the collecting terminal of the slurries collection device is then connected by pipeline with high ph-values slurry pool.
2. absorption tower according to claim 1, it is characterised in that the slurries collection device is multistage funnel structure, this
The upper surface external diameter of the most upper rank of multistage funnel is consistent with absorption tower internal diameter, and the lower rank upper surface external diameter in adjacent rank is slightly larger than
Upper rank lower surface external diameter is to facilitate slurries to collect, while between also leaving between the adjacent rank of multistage funnel and passing through for flue gas
Gap.
3. absorption tower according to claim 2, it is characterised in that the slurries collection device is that multistage funnel structure is two
Rank or three rank funnel structures.
4. absorption tower according to claim 1, it is characterised in that the smoke inlet of the absorption tower tower body is located at spray liquid
Under spray pipeline.
5. absorption tower according to claim 1, it is characterised in that the high ph-values slurry pool top is provided with fresh slurry
Inlet, and gypsum slurries outlet and bottom drain are then provided with bottom.
6. absorption tower according to claim 5, it is characterised in that the gypsum slurries outlet directly with absorption tower tower reactor
Slurries area is connected.
7. absorption tower according to claim 1, it is characterised in that be provided with the high ph-values slurry pool and extend into high pH
It is worth the oxidation air of slurry pool bottom.
8. absorption tower according to claim 1, it is characterised in that be provided with agitating device in the high ph-values slurry pool.
9. absorption tower according to claim 1, it is characterised in that online PH sensings are provided with the high ph-values slurry pool
Device and online serum density sensor.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720314516.2U CN206746300U (en) | 2017-03-29 | 2017-03-29 | A kind of absorption tower with selective serum recycle system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201720314516.2U CN206746300U (en) | 2017-03-29 | 2017-03-29 | A kind of absorption tower with selective serum recycle system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110013765A (en) * | 2019-04-03 | 2019-07-16 | 哈尔滨工程大学 | A kind of ship tail gas denitration integrated device |
-
2017
- 2017-03-29 CN CN201720314516.2U patent/CN206746300U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110013765A (en) * | 2019-04-03 | 2019-07-16 | 哈尔滨工程大学 | A kind of ship tail gas denitration integrated device |
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