CN219291048U - Ammonia supplementing device for coke oven gas desulfurization by ammonia process - Google Patents
Ammonia supplementing device for coke oven gas desulfurization by ammonia process Download PDFInfo
- Publication number
- CN219291048U CN219291048U CN202320648816.XU CN202320648816U CN219291048U CN 219291048 U CN219291048 U CN 219291048U CN 202320648816 U CN202320648816 U CN 202320648816U CN 219291048 U CN219291048 U CN 219291048U
- Authority
- CN
- China
- Prior art keywords
- ammonia
- coke oven
- desulfurization
- gas
- pipeline
- 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
Images
Landscapes
- Industrial Gases (AREA)
Abstract
An ammonia supplementing device for ammonia desulfurization of coke oven gas relates to the technical field of ammonia desulfurization of coke oven gas, solves the problem that the ammonia desulfurization process of coke oven gas needs to periodically supplement concentrated ammonia water into desulfurization liquid to cause inconvenience, and comprises the following steps: the device for preparing the methanol and the liquid ammonia is connected with a pneumatic adjusting valve group through an ammonia pipeline, the pneumatic adjusting valve group is connected with an air inlet gas pipeline of a chemical production desulfurizing tower through a pipeline, and an air outlet gas pipeline of the chemical production desulfurizing tower is connected with the air inlet gas pipeline of the device for preparing the methanol and the liquid ammonia; ammonia gas generated by the device for preparing methanol and co-producing liquid ammonia from coke oven gas is controlled to flow through a pneumatic adjusting valve group, enters a gas pipeline before a chemical production desulfurization tower, is fully mixed with the coke oven gas, and then enters the desulfurization tower to react with desulfurization liquid, so that the effect of supplementing ammonia is achieved.
Description
Technical Field
The utility model relates to the technical field of ammonia desulfurization of coke oven gas, in particular to an ammonia supplementing device for ammonia desulfurization of coke oven gas.
Background
The ammonia desulfurization technology is widely applied in the chemical industry field, namely, the ammonia desulfurization of the coke oven gas is realized by taking ammonia gas as an alkali source, absorbing hydrogen sulfide in the coke oven gas in a form of dilute ammonia water (also called desulfurization liquid), and then introducing oxygen in the air to oxidize the hydrogen sulfide into elemental sulfur, so that the purpose of removing the hydrogen sulfide in the coke oven gas is achieved.
Part of ammonia gas generated in the coking process is sent to an ammonia evaporation process for treatment in the form of ammonia water, and the evaporated ammonia gas is sent to a desulfurization device for ammonia supplementation; the other part of ammonia gas directly enters the desulfurization device along with the coke oven gas in a gas form and is absorbed by the desulfurization liquid to be used as an ammonia source. The ammonia concentration in the desulfurizing liquid directly influences the removing efficiency of the hydrogen sulfide, when the ammonia content in the desulfurizing liquid is lower than 9mg/L, the desulfurizing efficiency is greatly reduced, and the ammonia gas is timely supplemented at the moment. The ammonia gas of the ammonia synthesis device is stored in a normal-temperature spherical tank with the pressure of about 1.0Mpa, the spherical tank is influenced by the external environment temperature, the pressure can be increased, and the ammonia gas needs to be diffused to maintain the pressure of the spherical tank.
The technical proposal of the prior art is to periodically supplement concentrated ammonia water with the concentration of 18-20% into the desulfurizing liquid. But has the following disadvantages; the method has the following defects: the outsourcing ammonia water has higher cost, needs links such as production, transportation, storage and the like, needs a large amount of manpower and material resources, and has low efficiency. And the second disadvantage is that: in the ammonia water adding system, the desulfurizing liquid of the system is increased, the pretreatment load of the acid preparation working section is increased, the loads of a centrifugal machine and a concentration tower are increased, the electricity consumption and the steam consumption are increased, and the operation cost is increased. And the third disadvantage is: the ammonia water contains chloride ions and other impurities, which corrodes the pipelines and equipment of the system, reduces the service life of the equipment and causes safety and environmental protection risks.
Disclosure of Invention
Aiming at the problem that the ammonia desulfurization device for coke oven gas needs to periodically supplement concentrated ammonia water into desulfurization liquid in the ammonia desulfurization process of the coke oven gas in the prior art to cause various inconveniences, the utility model provides the ammonia desulfurization and ammonia supplementation device for coke oven gas, which fully utilizes the surplus ammonia generated by evaporation of a spherical tank of a synthetic ammonia device, solves the problem of high cost of outsourcing ammonia water and reduces the operation cost of the ammonia desulfurization device; the environmental protection problem that the addition of ammonia water causes surplus desulfurization solution is eliminated, the operation load of an acid making device is reduced, meanwhile, the way that chloride ions enter the desulfurization solution is eliminated, the corrosion to the pipelines and equipment of the system is avoided, and the service life of the equipment is prolonged.
The utility model provides a coke oven gas ammonia desulfurization and ammonia supplementation device, which comprises: the device for preparing methanol and co-producing liquid ammonia is connected with a pneumatic adjusting valve group through an ammonia pipeline, the pneumatic adjusting valve group is connected with an air inlet gas pipeline of a chemical production desulfurizing tower through a pipeline, and an air outlet gas pipeline of the chemical production desulfurizing tower is connected with the air inlet gas pipeline of the device for preparing methanol and co-producing liquid ammonia. The ammonia gas generated by the device for preparing methanol and co-producing liquid ammonia from coke oven gas is controlled to flow through the pneumatic adjusting valve group, enters the gas pipeline before the chemical production desulfurization tower, is fully mixed with the coke oven gas, enters the desulfurization tower to react with desulfurization liquid, achieves the effect of supplementing the ammonia gas, utilizes the ammonia gas generated by the ammonia desulfurization system of the coke oven gas to supplement the ammonia gas by self, replaces the mode of externally adding the ammonia gas, and avoids the problem of inconvenience caused by externally adding the ammonia gas.
Further, a pneumatic cut-off valve is arranged between the pneumatic adjusting valve group and the ammonia pipeline, and when the pressure of the ammonia pipeline is too high, the pneumatic cut-off valve is interlocked and cut off, so that the pipeline is prevented from being overpressurized.
Further, a check valve is arranged between the pneumatic adjusting valve group and the pneumatic cut-off valve to prevent the gas from flowing backwards.
Further, the air outlet end of the pneumatic adjusting valve group is connected with a flowmeter valve group, so that the flow of ammonia gas can be conveniently adjusted.
Further, the air outlet end of the flowmeter valve bank is provided with a pressure transmitter, the pressure of ammonia gas is detected, and when abnormality occurs, the pressure transmitter timely processes the pressure of the ammonia gas.
Further, a remote heat transfer resistor is arranged at the air outlet end of the flowmeter valve bank, the temperature of ammonia gas is detected, and when abnormality occurs, the ammonia gas is timely processed.
The utility model has the beneficial effects that: the ammonia gas generated by the device for preparing methanol and co-producing liquid ammonia from coke oven gas is controlled to flow through the pneumatic adjusting valve group, enters the gas pipeline before the chemical production desulfurization tower, is fully mixed with the coke oven gas, enters the desulfurization tower to react with desulfurization liquid, achieves the effect of supplementing the ammonia gas, utilizes the ammonia gas generated by the ammonia desulfurization system of the coke oven gas to supplement the ammonia gas by self, replaces the mode of externally adding the ammonia gas, and avoids the problem of inconvenience caused by externally adding the ammonia gas.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural view of the present utility model.
In the figure, 1, coproduction liquid ammonia device, 2, ammonia pipeline, 3, pneumatic adjusting valve group, 4, chemical production desulfurizing tower, 5, pneumatic stop valve, 6, check valve, 7, flowmeter valves, 8, pressure transmitter, 9, far heat transfer resistance.
Detailed Description
In order to make the technical solution of the present utility model better understood by those skilled in the art, the technical solution of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are only some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
As shown in fig. 1, an ammonia desulfurization and compensation device for coke oven gas by an ammonia method comprises: the device for preparing methanol and co-producing liquid ammonia 1 is characterized in that an ammonia gas outlet end of the device for preparing methanol and co-producing liquid ammonia 1 is connected with a pneumatic adjusting valve group 3 through an ammonia gas pipeline 2, the pneumatic adjusting valve group 3 is connected with an air inlet gas pipeline of a chemical production desulfurizing tower 4 through a pipeline, and an air outlet gas pipeline of the chemical production desulfurizing tower 4 is connected with an air inlet gas pipeline of the device for preparing methanol and co-producing liquid ammonia 1. The ammonia gas generated by the device 1 for preparing methanol and co-producing liquid ammonia from coke oven gas is controlled to flow through the gas pipeline before the ammonia gas enters the chemical production desulfurization tower 4 by the pneumatic control valve group 3, and the ammonia gas is fully mixed with the coke oven gas and then enters the desulfurization tower to react with desulfurization liquid, so that the effect of supplementing the ammonia gas is achieved, the ammonia gas generated by the ammonia method desulfurization system of the coke oven gas is utilized for self supplementing, the mode of externally adding the ammonia gas is replaced, and the inconvenience caused by externally adding the ammonia gas is avoided.
A pneumatic cut-off valve 5 is arranged between the pneumatic adjusting valve group 3 and the ammonia pipeline 2, and when the pressure of the ammonia pipeline 2 is too high, the pneumatic cut-off valve 5 is interlocked and cut off to prevent the pipeline from being overpressurized. A check valve 6 is arranged between the pneumatic adjusting valve group 3 and the pneumatic cut-off valve 5 to prevent the gas from flowing backwards. The air outlet end of the pneumatic adjusting valve group 3 is connected with a flowmeter valve group 7, so that the flow of ammonia gas can be conveniently adjusted. The pressure transmitter 8 is arranged at the air outlet end of the flowmeter valve bank 7, the remote heat transfer resistor 9 is arranged at the air outlet end of the flowmeter valve bank 7, the pressure and the temperature of ammonia gas are detected, and when abnormality occurs, the pressure and the temperature of the ammonia gas are processed timely.
The utility model has the beneficial effects that: the ammonia gas generated by the device for preparing methanol and co-producing liquid ammonia from coke oven gas is controlled to flow through the pneumatic adjusting valve group, enters the gas pipeline before the chemical production desulfurization tower, is fully mixed with the coke oven gas, enters the desulfurization tower to react with desulfurization liquid, achieves the effect of supplementing the ammonia gas, utilizes the ammonia gas generated by the ammonia desulfurization system of the coke oven gas to supplement the ammonia gas by self, replaces the mode of externally adding the ammonia gas, and avoids the problem of inconvenience caused by externally adding the ammonia gas.
Although the present utility model has been described in detail by way of preferred embodiments with reference to the accompanying drawings, the present utility model is not limited thereto. Various equivalent modifications and substitutions may be made in the embodiments of the present utility model by those skilled in the art without departing from the spirit and scope of the present utility model, and it is intended that all such modifications and substitutions be within the scope of the present utility model/be within the scope of the present utility model as defined by the appended claims.
Claims (6)
1. An ammonia desulphurization and ammonia supplementation device for coke oven gas by an ammonia method comprises: the device for preparing methanol and co-producing liquid ammonia is characterized in that the device for preparing methanol and co-producing liquid ammonia is connected with a pneumatic adjusting valve group through an ammonia pipeline, the pneumatic adjusting valve group is connected with an air inlet gas pipeline of a chemical production desulfurizing tower through a pipeline, and an air outlet gas pipeline of the chemical production desulfurizing tower is connected with the air inlet gas pipeline of the device for preparing methanol and co-producing liquid ammonia.
2. The ammonia desulfurization and supplementation device for coke oven gas according to claim 1, wherein a pneumatic shut-off valve is arranged between the dynamic adjustment valve group and the ammonia pipeline.
3. The ammonia desulfurization and supplementation device for coke oven gas according to claim 2, wherein a check valve is arranged between the pneumatic adjusting valve group and the pneumatic cut-off valve.
4. The ammonia desulfurization and supplementation device for coke oven gas according to claim 1, wherein the gas outlet end of the pneumatic adjusting valve group is connected with a flowmeter valve group.
5. The ammonia desulfurization and ammonia supplementation device for coke oven gas according to claim 4, wherein the air outlet end of the flowmeter valve group is provided with a pressure transmitter.
6. The ammonia desulfurization and ammonia supplementation device for coke oven gas according to claim 4, wherein the gas outlet end of the flowmeter valve group is provided with a far heat transfer resistor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320648816.XU CN219291048U (en) | 2023-03-24 | 2023-03-24 | Ammonia supplementing device for coke oven gas desulfurization by ammonia process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320648816.XU CN219291048U (en) | 2023-03-24 | 2023-03-24 | Ammonia supplementing device for coke oven gas desulfurization by ammonia process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219291048U true CN219291048U (en) | 2023-07-04 |
Family
ID=86953678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320648816.XU Active CN219291048U (en) | 2023-03-24 | 2023-03-24 | Ammonia supplementing device for coke oven gas desulfurization by ammonia process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219291048U (en) |
-
2023
- 2023-03-24 CN CN202320648816.XU patent/CN219291048U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105003706A (en) | Natural gas pressure reducing valve with pressure reducing ratio being convenient to adjust | |
| CN107096371A (en) | The lime stone slurry supply system and adjusting method of a kind of wide Load Regulation | |
| CN207375096U (en) | A kind of Fuel Tanking Unit of low nitrogen consumption | |
| CN219291048U (en) | Ammonia supplementing device for coke oven gas desulfurization by ammonia process | |
| CN111408243B (en) | Wet desulfurization pH value control system and method for thermal power generating unit | |
| CN105179768A (en) | Natural gas pressure reducing valve beneficial to improving gas exhaust pressure control precision | |
| CN210584343U (en) | Exhaust gas purification device | |
| CN216431267U (en) | Natural gas hydrogen-mixing system | |
| CN206669333U (en) | A kind of biogas cooperates with air supply system with municipal natural gas | |
| CN204922130U (en) | Do benefit to decompression than natural gas relief pressure valve of adjusting | |
| CN103407971A (en) | Novel technology for production of liquid sulfur dioxide | |
| CN208711352U (en) | A kind of coke-oven plant VOCs negative pressure recovery system | |
| CN207786332U (en) | Double adding type desulfurizers | |
| AU2021376697A1 (en) | Flue gas treatment system and flue gas treatment method | |
| CN209020156U (en) | A kind of wet desulphurization device | |
| CN219670667U (en) | Parallel water electrolysis hydrogen production water inlet system | |
| CN216856252U (en) | Sodium-alkali desulphurization device | |
| CN111377517A (en) | System and method for treating water in thermal power plant furnace based on ammonia oxygen water | |
| CN112426859A (en) | Ammonia water regulating system for SNCR (selective non-catalytic reduction) denitration | |
| CN208295532U (en) | A kind of storage tank pressurization sled | |
| CN217323989U (en) | Integrated pure oxygen biological desulfurization reaction device | |
| CN214437835U (en) | Device for improving biological desulfurization efficiency and desulfurization stability of alkaline biogas | |
| CN204922128U (en) | Do benefit to natural gas relief pressure valve of controlled pressure output precision | |
| CN217398459U (en) | Automatic acid adding system of hydrogen peroxide production device | |
| CN205115045U (en) | Improve ore deposit or smelt device of sour low temperature heat recovery of flue gas sulfur production |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |