CN205650086U - A heat recovery crystal system for ammonia process of desulfurization - Google Patents
A heat recovery crystal system for ammonia process of desulfurization Download PDFInfo
- Publication number
- CN205650086U CN205650086U CN201620442983.9U CN201620442983U CN205650086U CN 205650086 U CN205650086 U CN 205650086U CN 201620442983 U CN201620442983 U CN 201620442983U CN 205650086 U CN205650086 U CN 205650086U
- Authority
- CN
- China
- Prior art keywords
- crystallization
- desulfurizing tower
- desulfurization
- concentration
- circulation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Treating Waste Gases (AREA)
Abstract
The utility model discloses a heat recovery crystal system for ammonia process of desulfurization belongs to desulfurization technical field, and this system includes the desulfurizing tower, and second grade circulation crystallizer tank, desulfurizing tower are equipped with the concentration and spray the layer, and the concentrate export is connected through the upper portion of pipeline with second grade circulation crystallizer tank, and the concentration through second grade circulation crystallization pump and pipeline and desulfurizing tower of the lower part of second grade circulation crystallizer tank sprays and layer is connected, and the concentration sprays and layer includes a plurality of branch pipe and shower nozzle, and shower nozzle evenly distributed is at the branch pipe, second grade circulation crystallizer tank is equipped with the crystallization discharge port. The utility model discloses a system utilizes the flue -gas temperature to evaporate the moisture in the circulation fluid for the circulation fluid is concentrated, along with the increase of concentration, reaches in the circulation crystallizer tank after the finite concentration and to send back sulphur ammonium system to through the crystallization pumping over and carry out the ejection of compact and handle. The utility model discloses utilize the concentrated crystallization of flue -gas temperature, thermal recycle has saved the operation of follow -up crystallization.
Description
Technical field
This utility model relates to a kind of pick up the heat crystal system, returns particularly to a kind of heat for the ammonia process of desulfurization
Receipts utilize crystal system, belong to technical field of desulfurization.
Background technology
Coal-burning power plant of China is numerous, the medium and small machine that the enterprise such as particularly heat supply, large-scale petrochemical, chemical industry, metallurgy has
Group (below 100MW unit) spreads all over the place especially.The coal-fired SO produced2Severe contamination is caused, for reducing to air
SO2Endangering, the newly-built coal-fired plant boiler of national requirements must build flue gas desulfurization device simultaneously, and in-service power plant also to limit
Phase administers.Due to the desulfurization method of limestone-gypsum technique that desulfurizer investment is relatively big, the most leading, medium and small thermoelectricity
Factory is difficult to bear, and operating cost is higher, and desulfurizing byproduct Gypsum Fibrosum is limited by quality, yield and cost, purposes
Limited, cause extra processing cost.Therefore seek a kind of compared with calcium method, there is relatively low operating cost, with
Time producing ammonium sulfate byproduct chemical fertilizer ammonia desulfurizing process, flue gas desulfurization cost will be substantially reduced.
At present, more domestic arcola uses a kind of easy ammonia process spray column desulfurizer, uses on the top of tower
Directly spray with ammonia, but owing to spray flux is few, flue-gas temperature be high (～100 DEG C), ammonia highly volatile in addition,
The flue gas making discharge carries substantial amounts of free ammonia secretly, and desulfuration efficiency is extremely low, is difficult to reclaim ammonium sulfate product, causes desulfurization
Agent is run off in a large number, and operating cost is high, but also defines the secondary pollution of ammonia.
More external companies, use the ammonia desulfuration equipment of spray column technology, owing to meet higher mass transfer, biography
Heat request, so the liquid-gas ratio of desulfurizing tower is very big, close to desulfurization method of limestone-gypsum technique so that absorption cycle
The flow of liquid is very big, and energy consumption is relatively big, simultaneously because liquid film is carried secretly seriously, desulfurizing tower except mist requirement the highest, even
Have employed electricity except mist, the most whole device requirement for anticorrosion height so that the construction costs of the ammonia process of desulfurization is than equal Calx
Stone-gypsum sulfur removal technology is taller～20%, seriously constrains the popularization of ammonia-process desulfurization technique.
Traditional ammonia desulfurizing process flue gas is by carrying out heat exchange with outlet neat stress, and neat stress temperature raises, anti-
The only corrosion to chimney.Crystallization process needs to add crystallizer, and the extra energy that adds crystallizes.Simultaneously because change
The needs of heat, need to be also required to certain input at desulfurizing tower outlet erection flue and heat exchanger, flue and heat exchanger
Expense.
On January 2nd, 2008 is announced, and number of patent application is CN200720067184.9, entitled " concentration knot
Brilliant and absorb the box-like ammonia process desulfuration tower of oxidation panel " Chinese utility model patent disclose a kind of condensing crystallizing and absorption
The box-like ammonia process desulfuration tower of oxidation panel, it is provided that the Novel ammonia desulphurization device that a kind of energy consumption is low, reliable, including taking off
Sulfur tower, condensing crystallizing tower and connection desulfurizing tower and the connecting tube of condensing crystallizing tower, enter the flue gas of entrance in desulfurizing tower
Row desulfurization, the ammonium sulfate of generation, as the absorption cycle liquid in device, discharges neat stress, comprising: remove mist
Section, absorber portion, temperature descending section, oxidation panel, be introduced into condensing crystallizing section before flue gas to be desulfurization enters desulfurizing tower,
The ammonium sulfate generated in desulfurizing tower is concentrated saturated crystallization by described condensing crystallizing section and becomes serosity discharge, its
Including smoke inlet, with nozzle distributor, make ammonium sulfate concentrate saturated crystallization circulation crystallization groove.Should
The device desulfurization degree of utility model is high, absorbent utilization rate is high, non-secondary pollution, utilizes the heat of heat smoke simultaneously
The ammonium sulfate that evaporation and concentration generates so that it is saturated crystallization, needed for being substantially reduced following process ammonium sulfate
Energy consumption.The shortcoming of this technical scheme is: condensing crystallizing tower separates with circulating tank, and structure is complicated, and operating cost is high.
Therefore it provides a kind of technique is simple, the service efficiency of flue-gas temperature can be improved greatly, the most cost-effective
The pick up the heat crystal system for the ammonia process of desulfurization just become this technical field be badly in need of solve technical barrier.
Utility model content
For above-mentioned deficiency, this utility model purpose is, it is provided that a kind of technique is simple, can improve cigarette greatly
The service efficiency of temperature, the most cost-effective pick up the heat crystal system for the ammonia process of desulfurization.
Above-mentioned purpose of the present utility model reaches by the following technical programs:
A kind of pick up the heat crystal system for the ammonia process of desulfurization, it is characterised in that: including desulfurizing tower, two grades are followed
Ring crystallization tank, secondary cycle pump, described desulfurizing tower is provided with concentration spraying layer, and dividing plate is arranged over outlet and by pipe
Line is connected with the top of described circulation crystallization groove, and secondary cycle pump and pipeline are passed through in the side of described circulation crystallization groove
Being connected with the concentration spraying layer of described desulfurizing tower, described concentration spraying layer includes several arms and shower nozzle, shower nozzle
It is evenly distributed on arm；Described secondary cycle crystallization tank is provided with crystallization outlet and carries out discharging.
Preferably, described desulfurizing tower also includes: the top of described desulfurizing tower is absorber portion；Upper at described absorber portion
Face is arranged except mist section, and carries automatic cleaning spraying device, to produce neat stress, the water of described automatic spraying device by
Water pump provides；The top of described desulfurizing tower is provided with exhanst gas outlet, to discharge described neat stress.
A kind of pick up the heat crystallization processes for the ammonia process of desulfurization, comprises the following steps:
(1) flue gas enters the concentration spraying layer of desulfurizing tower by flue, and with circulation fluid counter current contacting, temperature reduces；
(2) the circulation fluid gravity flow after concentrating enters secondary cycle crystallization tank；
(3) supernatant in secondary cycle crystallization tank is pumped into desulfurizing tower by secondary cycle and concentrates spraying layer
Circulation further；
(4) discharging after the circulation fluid in secondary cycle crystallization tank reaches finite concentration.
Preferably, described in described step (4), finite concentration is 5%-20%.
Beneficial effect:
The pick up the heat crystal system for the ammonia process of desulfurization that this utility model provides, technique is simple, it is easy to accomplish,
Use pick up the heat technology so that the heat of flue gas is fully utilized, simultaneously because desulfurizing tower exports clean cigarette
The discharge of gas need not set up heat exchanger, therefore need not arrange crooked flue again, is drawn from desulfurizing tower outlet by flue gas
To heat exchanger, from smoke stack emission；Crystallizer need not additionally add simultaneously, saves investment cost, and during
Need not additionally put into energy at crystalline portion, save again the input of energy.
Below by the drawings and specific embodiments, this utility model is described further, but is not meant to this
The restriction of utility model protection scope.
Accompanying drawing explanation
Fig. 1 is the structural representation of a kind of pick up the heat crystal system for the ammonia process of desulfurization of the present utility model.
Main Reference Numerals illustrates:
1 desulfurizing tower 2 secondary cycle crystallization tank
3 secondary cycle pumps 4 concentrate spraying layer
Detailed description of the invention
Embodiment 1
As it is shown in figure 1, be the structure of a kind of pick up the heat crystal system for the ammonia process of desulfurization of the present utility model
Schematic diagram, in figure, 1 is desulfurizing tower, and 2 is secondary cycle crystallization tank, and 3 is secondary cycle pump, and 4 for concentrating spray
Layer.
A kind of pick up the heat crystal system for the ammonia process of desulfurization, including desulfurizing tower 1, secondary cycle crystallization tank 2
Secondary cycle pump 3, described desulfurizing tower 1 be provided with concentration spraying layer 4, be provided with outlet and by pipeline with described two grades
The top of circulation crystallization groove 2 is connected, and the bottom of described secondary cycle crystallization tank 2 crystallizes pump 3 by secondary cycle
Being connected with the concentration spraying layer 4 of pipeline with described desulfurizing tower 1, described concentration spraying layer 4 arranges arm and shower nozzle
(depending on the quantity of arm and the shower nozzle serosity amount according to liquid/gas ratio needs), shower nozzle is evenly distributed on arm,
The material of described arm is fiberglass, and the material of shower nozzle is carborundum；Described secondary cycle crystallization tank 2 is provided with crystallization
Outlet carries out discharging.
Desulfurizing tower 1, secondary cycle crystallization tank 2 use carbon steel to make, and the part of contact feed liquid uses phosphorus sheet of resinizing
Or line with rubber anticorrosion, reduce construction costs.Tower internals can use fiberglass (FRP) or polypropylene (PP) to make.
Pick up the heat crystallization processes flow process for the ammonia process of desulfurization of the present utility model is as follows:
(1) flue gas enters the concentration spraying layer 4 of desulfurizing tower 1 by flue, inverse with circulation fluid (ammonium sulfate)
Stream contact, flue-gas temperature is down to 45～75 DEG C by 120～160 DEG C；
(2) circulation fluid (ammonium sulfate) after concentrating is entered two grades followed by enriching section outlet and pipeline gravity flow
Ring crystallization tank 2；
(3) supernatant in secondary cycle crystallization tank 2 is transported to desulfurizing tower by secondary cycle pump 3 and concentrates spray
Drench layer to circulate further；
(4) reach 5%-20% when the circulation fluid concentration in secondary cycle crystallization tank 2, carry out discharging.
After pick up the heat crystallization apparatus for the ammonia process of desulfurization of the present utility model is by the spray of circulation fluid, flue gas
Temperature reduces to about 60 DEG C, and moisture is taken away in evaporation simultaneously so that circulation fluid is concentrated.
Utilize flue-gas temperature condensing crystallizing, the recycling of heat, eliminate the operation of later crystallization.
By circulation crystallization, on the one hand flue-gas temperature reduces, and prevents high-temperature flue gas from contacting with absorbing liquid, produces gas molten
Glue；The energy required for later crystallization has been saved in the recovery of used heat.
The explanation of above-described embodiment, is not to this utility model structure, the restriction of technique, any to this utility model
Make the structure after simple transformation, or there is the technique of identical function, belong to the protection domain of this utility model patent.
Claims (3)
1. the pick up the heat crystal system for the ammonia process of desulfurization, it is characterised in that: include desulfurizing tower, two
Level circulation crystallization groove, secondary cycle pump, described desulfurizing tower is provided with concentration spraying layer, and dividing plate is arranged over outlet and leads to
Crossing pipeline to be connected with the top of described secondary cycle crystallization tank, the bottom of described secondary cycle crystallization tank passes through two grades
Circulation crystallization pump is connected with the concentration spraying layer of described desulfurizing tower with pipeline, described concentration spraying layer be provided with arm and
Shower nozzle, shower nozzle is evenly distributed on arm；Described secondary cycle crystallization tank is provided with crystallization outlet.
The most according to claim 1 for the pick up the heat crystal system of the ammonia process of desulfurization, it is characterised in that:
Described desulfurizing tower also includes: the top of described desulfurizing tower is absorber portion；It is arranged above with except mist section at described absorber portion,
And carry automatic cleaning spraying device；The top of described desulfurizing tower is provided with exhanst gas outlet.
The most according to claim 1 for the pick up the heat crystal system of the ammonia process of desulfurization, it is characterised in that:
The material of described arm is fiberglass, and the material of described shower nozzle is carborundum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620442983.9U CN205650086U (en) | 2016-05-14 | 2016-05-14 | A heat recovery crystal system for ammonia process of desulfurization |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620442983.9U CN205650086U (en) | 2016-05-14 | 2016-05-14 | A heat recovery crystal system for ammonia process of desulfurization |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205650086U true CN205650086U (en) | 2016-10-19 |
Family
ID=57402737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620442983.9U Active CN205650086U (en) | 2016-05-14 | 2016-05-14 | A heat recovery crystal system for ammonia process of desulfurization |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205650086U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105854604A (en) * | 2016-05-14 | 2016-08-17 | 张波 | Heat recycling crystallization system and process for ammonia desulphurization |
-
2016
- 2016-05-14 CN CN201620442983.9U patent/CN205650086U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105854604A (en) * | 2016-05-14 | 2016-08-17 | 张波 | Heat recycling crystallization system and process for ammonia desulphurization |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101670231B (en) | Device and process for converting calcium process desulfurization into temperature difference crystallizing ammonia process desulfurization | |
| CN200998639Y (en) | Concentrated crystallization and absorbed oxidation combined type ammonia process desulfuration tower | |
| CN103868087B (en) | A kind of collaborative enhancing PM2.5The method of elimination and fume afterheat deep exploitation and device | |
| CN201333374Y (en) | Device capable of collecting carbon dioxide contained in flue gases of power plant through ammonia by utilizing void tower | |
| CN101549246B (en) | Sintering flue gas desulfurization combined coking coal gas deamination cycling system | |
| CN201026440Y (en) | Absorption, oxidation, concentration combined desulfurizing tower | |
| CN201959716U (en) | Combination ammonia desulfurization tower | |
| CN205650072U (en) | Dual cycle desulfurization absorption tower | |
| CN105749704B (en) | A kind of ammonium sulfite desulphurization system and technique | |
| CN203886407U (en) | Flue gas purification and deep afterheat recycling integrated device | |
| CN209287031U (en) | A kind of sulfur dioxide minimum discharge desulfurizer being bubbled combination tower based on spray | |
| CN107261789B (en) | Ammonia desulphurization system and method for high-sulfur flue gas | |
| CN205650086U (en) | A heat recovery crystal system for ammonia process of desulfurization | |
| CN104212497A (en) | Alkali feeding pressure-reducing device for coke oven gas desulfurization and application method thereof | |
| CN201454382U (en) | Circulation system combining sintering flue gas desulfurization with coke oven gas deamination | |
| CN202207546U (en) | Device for reducing water consumption of wet flue gas desulfurization | |
| CN206897161U (en) | A kind of flue gas waste heat recovery system and a kind of high-efficiency desulfurization Tower System | |
| CN201214046Y (en) | Ammonia process desulphurizing device for reducing ammonia escape | |
| CN205288056U (en) | Useless ammonia processing system of propane diamine production line | |
| CN205360984U (en) | Waste discharge production line of ammonia preparation ammonium sulfate crystallization of utilization | |
| CN217568170U (en) | Desorption device suitable for amine method carbon dioxide entrapment system | |
| CN105854604A (en) | Heat recycling crystallization system and process for ammonia desulphurization | |
| CN207056338U (en) | The regenerating unit of sour gas trapping solution in a kind of power-plant flue gas | |
| CN206108916U (en) | Recovery system of ammonia among coking raw coke oven gas and coking wastewater | |
| CN105854563B (en) | A kind of chemical emission desulfurization treatment process absorbing ammonia process based on film |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170511 Address after: 250200 Shandong city of Ji'nan province Zhangqiu Mingshui old industrial park. Patentee after: Shandong Ming Sheng Chemical Engineering Co. Ltd. Address before: 250200 Shandong city of Ji'nan province Zhangqiu Mingshui check the old industrial park of Shandong Ming Sheng Chemical Engineering Co. Ltd. Patentee before: Zhang Bo |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 250200 Shandong city of Ji'nan province Zhangqiu Mingshui old industrial park. Patentee after: Shandong Mingsheng Environmental Protection Technology Co.,Ltd. Address before: 250200 Shandong city of Ji'nan province Zhangqiu Mingshui old industrial park. Patentee before: SHANDONG MINGSHENG CHEMICAL ENGINEERING Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |