CN204151096U - A kind of industry contains pre-treatment and the heat reclamation device of ammonia sewage - Google Patents
A kind of industry contains pre-treatment and the heat reclamation device of ammonia sewage Download PDFInfo
- Publication number
- CN204151096U CN204151096U CN201420643983.6U CN201420643983U CN204151096U CN 204151096 U CN204151096 U CN 204151096U CN 201420643983 U CN201420643983 U CN 201420643983U CN 204151096 U CN204151096 U CN 204151096U
- Authority
- CN
- China
- Prior art keywords
- communicated
- pipeline
- waste water
- deammoniation tower
- depickling deammoniation
- 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
- Physical Water Treatments (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model discloses pre-treatment and heat reclamation device that a kind of industry contains ammonia sewage, include the low heat recovery system of waste water, interchanger, secondary steam supercharging system, depickling deammoniation tower, watercooler, waste water flash tank, ammoniacal liquor surge tank, the low heat recovery system of described waste water comprises vaporizer, condenser, be communicated with by circulation line between vaporizer, condenser, and circulation line have access to compressor, expansion valve; The nozzle that described secondary steam supercharging system is communicated with successively by concentrically axle, reception chamber, tubular mixing section, long trumpet degree of lip-rounding diffuser casing are formed, two sections are divided in described depickling deammoniation tower, in depickling deammoniation tower, hypomere adopts board-like float valve internals, in depickling deammoniation tower, epimere adopts filler internals, and in depickling deammoniation tower, between two sections, gas phase is communicated with.The utility model device is simple and reliable, the wastewater temperature of outer row and indices, all meets the basic demand entering biochemical treatment.
Description
Technical field
The utility model relates to industry containing ammonia field of sewage treatment, and specifically a kind of industry contains pre-treatment and the heat reclamation device of ammonia sewage.
Background technology
As shown in table 1, be the ammoniacal liquor composition that a kind of high-temperature-coked is produced, ammonia, phenol, sour gas etc. wherein containing high density, first must carry out pre-treatment to it, reduces the correlation parameter index in waste water, just can enter the further advanced treatment of biochemical sewage device.
The composition of a table 1 high-temperature-coked ammoniacal liquor
| Composition | Full ammonia | Volatilization ammonia | CO 2 | H 2S | HCN | Phenol | Pyridine |
| g/L | 2~5 | 2~3 | 1.5~2.5 | 0.5~2.5 | 0.1~0.2 | 1~2 | 0.2~0.4 |
General industry is made up of two portions containing ammonia pre-treating process for sewage, namely comprise phenol to reclaim and recovery ammonia, in order to ensure the quality reclaiming crude phenols, by extraction treatment technique recovery crude phenols wherein, make the total phenol of waste water after processing lower than 400mg/L, pH value is 6.5 ~ 8, and temperature about 30 DEG C, directly delivers to recovery ammonia treatment system.
At present, ammonia reclaiming process generally takes tower distil process, and type of heating comprises steam direct heating, steam indirect heating, heat-conducting oil heating and tube furnace flue gas heating etc.To compare steam direct heating, the processing units such as steam indirect heating, diamond heating and heat-conducting oil heating be many, take up an area large, working cost is high.But traditional steam direct heating ammonia distillation process, do not adopt recovery of heat Optimization Technology, advantage is not obvious generally.
utility model contentthe purpose of this utility model is to provide pre-treatment and the heat reclamation device that a kind of industry contains ammonia sewage, to solve the ammonia reclaiming process Problems existing of prior art.
In order to achieve the above object, the technical scheme that the utility model adopts is:
Industry contains pre-treatment and the heat reclamation device of ammonia sewage, it is characterized in that: include the low heat recovery system of waste water, interchanger, secondary steam supercharging system, depickling deammoniation tower, watercooler, waste water flash tank, ammoniacal liquor surge tank, wherein:
The low heat recovery system of described waste water comprises vaporizer, condenser, is communicated with between vaporizer, condenser by circulation line, and circulation line has access to compressor, expansion valve;
Described interchanger has two input apertures, and two delivery ports;
The nozzle that described secondary steam supercharging system is communicated with successively by concentrically axle, reception chamber, tubular mixing section, long trumpet degree of lip-rounding diffuser casing are formed, nozzle top is as secondary steam supercharging system input aperture, diffuser casing end is as secondary steam supercharging system delivery port, and reception chamber side is also provided with bypass input mouth;
Be divided into two sections in described depickling deammoniation tower, in depickling deammoniation tower, hypomere adopts board-like float valve internals, and in depickling deammoniation tower, epimere adopts filler internals, and in depickling deammoniation tower, between two sections, gas phase is communicated with, and tower reactor adopts low-pressure superheated steam direct heating;
In the low heat recovery system of described waste water, industrial ammonia-containing water is introduced by pipeline in the input aperture of vaporizer, the delivery port of vaporizer is communicated with by pipeline and interchanger input aperture, the input aperture of condenser is communicated with by pipeline and interchanger delivery port, and the delivery port of condenser is communicated with outside sewage works by pipeline; Another delivery port of described interchanger by pipeline connection to depickling deammoniation tower epimere side, depickling deammoniation tower hypomere side is communicated with waste water flash tank one upper lateral part by pipeline, and waste water flash tank opposite side bottom is communicated with by another input aperture of pipeline and interchanger; Secondary steam supercharging system input aperture is communicated with external steam source, and secondary steam supercharging system delivery port is communicated with depickling deammoniation tower hypomere side by pipeline, and the bypass input mouth of secondary steam supercharging system is communicated with waste water flash drum overhead by pipeline; Described depickling deammoniation tower top is communicated with watercooler input aperture by pipeline, watercooler delivery port is communicated with ammoniacal liquor surge tank input aperture by pipeline, ammoniacal liquor surge tank has two delivery ports, one of them delivery port is communicated with depickling deammoniation tower epimere opposite side by pipeline, and another delivery port is communicated with exterior storage tank field by pipeline.
Advantage of the present utility model is:
(1) adopt the secondary steam after steam injector supercharging as the supplementary vapour source of this depickling deamination distil process, less investment, efficiency is high;
(2) adopt the relevant heat-exchange equipment such as low heat recovery system and secondary steam supercharging system, the low grade residual heat in distillation waste water is reclaimed in classification, effectively can reduce the running cost of device.
Accompanying drawing explanation
Fig. 1 is the utility model structure principle chart.
Fig. 2 is the low heat recovery system structure principle chart of waste water.
Fig. 3 is secondary steam boosting system arrangement figure.
Embodiment
Shown in Figure 1, a kind of industry contains pre-treatment and the heat reclamation device of ammonia sewage, includes the low heat recovery system 1 of waste water, interchanger 2, secondary steam supercharging system 3, depickling deammoniation tower 4, watercooler 5, waste water flash tank 6, ammoniacal liquor surge tank 7, wherein:
The low heat recovery system 1 of waste water comprises vaporizer, condenser, is communicated with, and circulation line has access to compressor, expansion valve between vaporizer, condenser by circulation line;
Interchanger 2 has two input apertures, and two delivery ports;
The nozzle 31 that secondary steam supercharging system 3 is communicated with successively by concentrically axle, reception chamber 32, tubular mixing section 33, long trumpet degree of lip-rounding diffuser casing 34 are formed, nozzle 31 top is as secondary steam supercharging system input aperture, diffuser casing 34 end is as secondary steam supercharging system delivery port, and reception chamber 32 side is also provided with bypass input mouth;
Be divided into two sections in depickling deammoniation tower 4, in depickling deammoniation tower 4, hypomere adopts board-like float valve internals, and in depickling deammoniation tower 4, epimere adopts filler internals, and in depickling deammoniation tower 4, between two sections, gas phase is communicated with, and tower reactor adopts low-pressure superheated steam direct heating;
In the low heat recovery system 1 of waste water, industrial ammonia-containing water is introduced by pipeline in the input aperture of vaporizer, the delivery port of vaporizer is communicated with by pipeline and interchanger 2 one input apertures, the input aperture of condenser is communicated with by pipeline and interchanger 2 one delivery ports, and the delivery port of condenser is communicated with outside sewage works by pipeline; Another delivery port of interchanger 2 by pipeline connection to depickling deammoniation tower 4 epimere side, depickling deammoniation tower 4 hypomere side is communicated with waste water flash tank 6 one upper lateral part by pipeline, and waste water flash tank 6 opposite side bottom is communicated with another input aperture of interchanger 2 by pipeline; Secondary steam supercharging system 3 input aperture is communicated with external steam source, and secondary steam supercharging system 3 delivery port is communicated with depickling deammoniation tower 4 hypomere side by pipeline, and the bypass input mouth of secondary steam supercharging system 3 is communicated with waste water flash tank 7 top by pipeline; Depickling deammoniation tower 4 top is communicated with watercooler 5 input aperture by pipeline, watercooler 5 delivery port is communicated with ammoniacal liquor surge tank 7 input aperture by pipeline, ammoniacal liquor surge tank 7 has two delivery ports, one of them delivery port is communicated with depickling deammoniation tower 4 epimere opposite side by pipeline, and another delivery port is communicated with exterior storage tank field by pipeline.
Between waste water flash tank 6 and interchanger 2, connecting pipeline is provided with pump 8.
The pipeline that ammoniacal liquor surge tank 7 is communicated to exterior storage tank field is provided with pump.
In the utility model, the low heat recovery system of waste water: waste water low-heat unit and use side, heat source side water-flow circuit as shown in Figure 2: the low temperature formed after throttling, low pressure two-phase refrigerant, from distillation waste water, heat is absorbed in vaporizer, and flash to the overheated gaseous coolant of low temperature, low pressure, and discharge after distillation waste water is lowered the temperature; This refrigerant is transfused to the compressor of shaft power, is compressed into the overheated gaseous coolant of high temperature, high pressure, then in condenser, is condensed into the liquid coolant of High Temperature High Pressure, condenser heat is discharged simultaneously and contains ammonia sewage to raw material, make its heat temperature raising; And high pressure, excessively cold liquid coolant, again become the two-phase refrigerant of low temperature, low pressure through throttling, with the thermodynamic cycle of completion system.
In the utility model, secondary steam supercharging system: secondary steam supercharging system is a kind of steam injector, its structural representation as shown in Figure 3, mainly comprises nozzle, reception chamber, mixing section, diffuser casing.Be used to carry out recompression supercharging to low-grade steam.In work, the fresh superheated vapour of outer confession to enter in injection type compressor with very high speed from nozzle out, enter reception chamber again, injection secondary steam lower for pressure is siphoned away, two kinds of steam together enter in mixing section and carry out the equilibrium of speed and the rising of pressure, enter diffuser casing relaying pressure of continuing rising subsequently.In diffuser casing exit, the pressure of mixing steam fluid higher than the pressure of injection secondary steam fluid when entering reception chamber, thus makes low-grade secondary steam obtain boosting recycling.
Concrete implementation example:
In industry containing in ammonia sewage, ammonia except existing with free state, also often with NH
4 +form is present in mixed aqueous solution, and general existing volatilization ammonia is (as (NH
4)
2s, NH
4cN and (NH
4)
2cO
3), also contain a certain amount of fixed ammonia (as (NH
4cl, NH
4cNS and (NH
4)
2sO
4).Usual volatilization ammonia can adopt water vapour stripping and decompose and steam; Fixed ammonia then directly with steam stripped and decomposition evaporation, can not steam after needing to adopt basic solution to resolve into volatilization ammonia.Its reaction formula is as follows:
NH
4Cl + NaOH→ NaCl + NH
3+ H
2O
NH
4CNS+ NaOH→ NaCNS + NH
3+ H
2O
（NH
4）
2SO
4+ NaOH→ Na
2SO
4+ 2NH
3+ H
2O
From the normal temperature industry out-of-bounds sent here containing ammonia sewage, successively by low heat recovery system and interchanger, carry out heat exchange with from depickling deamination tower reactor distillation waste water out, be finally heated to more than 96 DEG C, inject the alkali lye of 5% more in proportion, send on the column plate on depickling deammoniation tower top.Bottom extracting tower, tower reactor directly passes into the thermal source of superheated vapour as stripping and distillation, top gaseous phase is after circulating water condensing cooling, the ammoniacal liquor forming concentration about 20% enters in surge tank, an ammoniacal liquor part is back in tower, reflux ratio about 3 ~ 5, all the other strong aquas are delivered to out-of-bounds by transferpump as product.
The waste water of the discharge at the bottom of depickling deammoniation tower, containing ammonia density lower than 150mg/L, temperature about 105 ~ 108 DEG C, in order to fully reclaim the waste heat in distillation waste water, present method takes step to reclaim according to energy grade:
(1) first waste water after the distillation going out tower reactor is sent in flash tank, the saturation steam of 0.02MPaG is gone out through vacuum flashing, saturation steam enters vapor pressurization propulsion system, under the superheated vapour suction function that 0.7MPaG is fresh, boost to 0.2 ~ 0.5MPaG, return to depickling deamination tower reactor as vapour source.
(2) waste water after flash tank flash distillation, is pressurizeed by pump and delivers to interchanger, and the raw material being 80 DEG C with temperature carries out heat exchange containing ammonia sewage, enters depickling deammoniation tower carry out distillation pre-treatment containing ammonia sewage temperature after rising to 98 DEG C; Waste water then temperature drops to 75 DEG C further.
(3) low heat recovery system is entered from interchanger distillation waste water out, continue to reclaim the low grade residual heat in waste water, raw material containing ammonia sewage, is preheated to 80 DEG C containing ammonia sewage from 30 DEG C from the raw material out-of-bounds sent here by preheating, is sent to sewage works after distillation waste water is then down to 40 DEG C from 75 DEG C.
Claims (1)
1. industry contains pre-treatment and a heat reclamation device for ammonia sewage, it is characterized in that: include the low heat recovery system of waste water, interchanger, secondary steam supercharging system, depickling deammoniation tower, watercooler, waste water flash tank, ammoniacal liquor surge tank, wherein:
The low heat recovery system of described waste water comprises vaporizer, condenser, is communicated with between vaporizer, condenser by circulation line, and circulation line has access to compressor, expansion valve;
Described interchanger has two input apertures, and two delivery ports;
The nozzle that described secondary steam supercharging system is communicated with successively by concentrically axle, reception chamber, tubular mixing section, long trumpet degree of lip-rounding diffuser casing are formed, nozzle top is as secondary steam supercharging system input aperture, diffuser casing end is as secondary steam supercharging system delivery port, and reception chamber side is also provided with bypass input mouth;
Be divided into two sections in described depickling deammoniation tower, in depickling deammoniation tower, hypomere adopts board-like float valve internals, and in depickling deammoniation tower, epimere adopts filler internals, and in depickling deammoniation tower, between two sections, gas phase is communicated with, and tower reactor adopts low-pressure superheated steam direct heating;
In the low heat recovery system of described waste water, industrial ammonia-containing water is introduced by pipeline in the input aperture of vaporizer, the delivery port of vaporizer is communicated with by pipeline and interchanger input aperture, the input aperture of condenser is communicated with by pipeline and interchanger delivery port, and the delivery port of condenser is communicated with outside sewage works by pipeline; Another delivery port of described interchanger by pipeline connection to depickling deammoniation tower epimere side, depickling deammoniation tower hypomere side is communicated with waste water flash tank one upper lateral part by pipeline, and waste water flash tank opposite side bottom is communicated with by another input aperture of pipeline and interchanger; Secondary steam supercharging system input aperture is communicated with external steam source, and secondary steam supercharging system delivery port is communicated with depickling deammoniation tower hypomere side by pipeline, and the bypass input mouth of secondary steam supercharging system is communicated with waste water flash drum overhead by pipeline; Described depickling deammoniation tower top is communicated with watercooler input aperture by pipeline, watercooler delivery port is communicated with ammoniacal liquor surge tank input aperture by pipeline, ammoniacal liquor surge tank has two delivery ports, one of them delivery port is communicated with depickling deammoniation tower epimere opposite side by pipeline, and another delivery port is communicated with exterior storage tank field by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420643983.6U CN204151096U (en) | 2014-10-30 | 2014-10-30 | A kind of industry contains pre-treatment and the heat reclamation device of ammonia sewage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420643983.6U CN204151096U (en) | 2014-10-30 | 2014-10-30 | A kind of industry contains pre-treatment and the heat reclamation device of ammonia sewage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204151096U true CN204151096U (en) | 2015-02-11 |
Family
ID=52509232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420643983.6U Active CN204151096U (en) | 2014-10-30 | 2014-10-30 | A kind of industry contains pre-treatment and the heat reclamation device of ammonia sewage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204151096U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104341015A (en) * | 2014-10-30 | 2015-02-11 | 东华工程科技股份有限公司 | Pretreatment and heat recovery device and method for industrial ammonia containing wastewater |
| CN113184936A (en) * | 2021-03-25 | 2021-07-30 | 宣化钢铁集团有限责任公司 | Efficient and energy-saving ammonia distillation deacidification system and method for recycling ammonia nitrogen |
| CN114262109A (en) * | 2021-11-03 | 2022-04-01 | 青川县青云上锰业有限公司 | Ammonia recovery method of low-concentration ammonium sulfate solution |
-
2014
- 2014-10-30 CN CN201420643983.6U patent/CN204151096U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104341015A (en) * | 2014-10-30 | 2015-02-11 | 东华工程科技股份有限公司 | Pretreatment and heat recovery device and method for industrial ammonia containing wastewater |
| CN104341015B (en) * | 2014-10-30 | 2016-05-25 | 东华工程科技股份有限公司 | A kind of industry is containing pretreatment and heat reclamation device and the method for ammonia sewage |
| CN113184936A (en) * | 2021-03-25 | 2021-07-30 | 宣化钢铁集团有限责任公司 | Efficient and energy-saving ammonia distillation deacidification system and method for recycling ammonia nitrogen |
| CN114262109A (en) * | 2021-11-03 | 2022-04-01 | 青川县青云上锰业有限公司 | Ammonia recovery method of low-concentration ammonium sulfate solution |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104817481A (en) | Technological method for recovering DMSO from DMSO aqueous solution | |
| CN104843816B (en) | A kind of heat pump flash distillation stripping deamination coproduction of ammonia sulfate and the method for ammonia | |
| CN204151096U (en) | A kind of industry contains pre-treatment and the heat reclamation device of ammonia sewage | |
| CN104709954A (en) | Ammonia stilling and desulfurating integrated system by utilizing waste heat of flue gas of coke oven | |
| CN207046874U (en) | A kind of recycling treatment system that ammonia is reclaimed from ammonia nitrogen waste water | |
| CN105293524A (en) | Recovery system and process for waste heat in production of anhydrous ammonia from ammonium phosphate through ammonia washing | |
| CN104986816B (en) | Process and apparatus for carrying out wastewater desorption and falling film evaporation on coking sewage | |
| CN212222702U (en) | High-efficient low temperature negative pressure ammonia nitrogen waste water strip system | |
| CN203307083U (en) | Negative pressure ammonia distiller by using raw gas waste heat as heat source | |
| CN210214856U (en) | Energy-efficient surplus aqueous ammonia distillation plant | |
| CN104495968A (en) | Negative-pressure ammonia distilling method used for heating ammonia distilling recycled waste water with coke oven crude gas waste heat | |
| CN104724776A (en) | Device and method for mixing secondary steam into pressurized water in pressurized evaporation | |
| CN104058475A (en) | Novel heat pump distillation deamination energy-saving process | |
| CN204607626U (en) | Coal gas primary cooler waste heat ammonia steaming device | |
| CN104056462A (en) | Heat pump distillation energy-saving device | |
| CN204644041U (en) | A kind of ammonia nitrogen waste water treatment system | |
| CN203768054U (en) | System for recovering ammonia vapor waste heat from top of residual ammonia water ammonia stripper | |
| CN106809896B (en) | A kind of organic wastewater treating system and method | |
| CN206502628U (en) | A kind of organic waste-water treating apparatus | |
| CN206408037U (en) | A kind of coal chemical industry buck flash distillation process system for reducing ammonia accumulation | |
| CN210751311U (en) | Solution concentration device | |
| CN104341015A (en) | Pretreatment and heat recovery device and method for industrial ammonia containing wastewater | |
| CN210973956U (en) | Vacuum-pumping non-condensable gas evaporative crystallization system | |
| CN1858005A (en) | Energy saving, purifying and recovering process for urea process condensate | |
| CN104477955B (en) | Live steam condensed water cooling in a kind of alumina producing and heat recovery method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |