Ammonia-containing condensate treatment system
By designing an ammonia-containing condensate treatment system during the gasification of water coal slurry, and using super ammonia absorbers and heat exchangers to increase the concentration of ammonia water, the problem of high cost of treatment of ammonia-containing condensate generated by gasification of water coal slurry is solved, and the problem of high cost of treatment of ammonia-containing condensate produced by gasification of water coal slurry is realized. Efficient concentration of ammonia and pollution reduction.
Patent Information
- Application Number
- CN202420891520.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-04-26
AI Technical Summary
The ammonia-containing condensate produced by gasification of water coal slurry is costly and economically low.
An ammonia-containing condensate treatment system was designed, and a super ammonia absorber was used to contact ammonia with ammonia water through an aeration pipe to improve the solubility of ammonia, and to increase the contact area and cooling through a heat exchanger to increase the concentration of ammonia water. It includes super ammonia aspirator, air supply pipe, aeration pipe, circulating drain pipe and circulating water supply pipe to ensure efficient enrichment of ammonia.
About 10 cubic meters of ammonia-containing condensate water are processed every hour, increasing the ammonia water concentration to 15-20%, increasing the economic value of by-products and reducing pollution emissions.
Smart Images
Figure CN222274179U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of ammonia-containing wastewater treatment, in particular to an ammonia-containing condensed water treatment system. Background Art
[0002] Since the widespread application of water-coal slurry gasification technology, the cost effect of new synthetic ammonia has gradually been reflected, and safe and environmentally friendly production has been placed in a more prominent position. However, the ammonia-containing condensate produced by the conversion system is generally sent to gasification and boilers for use, which does not generate economic benefits. Summary of the invention
[0003] The technical problem to be solved by the utility model is that the treatment cost of ammonia-containing condensed water generated by water-coal slurry gasification is high and the economic benefits generated are low.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an ammonia-containing condensate treatment system, including a super ammonia absorber, the super ammonia absorber is connected to an ammonia water tank through a discharge pipe, the bottom and top of the ammonia water tank are connected to the canning equipment and the tail gas absorption tower through an output pipe and an exhaust pipe respectively, the super ammonia absorber is connected to an air supply pipe and an ammonia water inlet pipe, an aeration pipe is arranged in parallel on the air supply pipe, the aeration pipe is located below the ammonia water in the super ammonia absorber, a heat exchanger is arranged in the super ammonia absorber, and the heat exchanger is connected to a circulating drainage pipe and a circulating water supply pipe.
[0005] Preferably, the heat exchanger is located below the liquid level of the ammonia solution, and the output end of the aeration pipe is located inside the heat exchanger.
[0006] Preferably, the heat exchanger includes vertically arranged heat exchange plates and connecting seats fixedly connected horizontally to both ends of the heat exchange plates, the two connecting seats are respectively connected to the circulating drainage pipe and the circulating water supply pipe, the heat exchange plates are equidistantly distributed in the horizontal direction, and the aeration pipe is located between adjacent heat exchange plates.
[0007] Preferably, a fixing hole is provided on the connecting seat at the top, the aeration pipe passes through the fixing hole, and a gap is provided between the connecting seat and the inner wall of the super ammonia absorber.
[0008] Preferably, the circulating drainage pipe is connected to the connecting seat located above.
[0009] Preferably, the ammonia water inlet pipe is connected in parallel with a synthetic ammonia water pipe and a conversion ammonia water pipe.
[0010] 1. The utility model provides an ammonia condensate treatment system, which transports ammonia condensed water to a super ammonia absorber and aerates the ammonia condensed water with ammonia to increase the ammonia concentration in the ammonia condensed water, thereby achieving the purpose of concentration. The device processes about 10 cubic meters of ammonia condensed water per hour, and increases the ammonia concentration to 15-20%, thereby improving the taste of ammonia, increasing the economic value of by-products and reducing pollution emissions.
[0011] 2. The ammonia water inlet pipe includes a by-product conversion ammonia water pipe and a synthetic ammonia water pipe to ensure the output of ammonia water. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] The utility model is further described below in conjunction with the accompanying drawings and embodiments:
[0013] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.
[0014] Figure 2 It is a schematic diagram of the internal structure of the super ammonia absorber in the embodiment of the utility model.
[0015] Figure 3 It is an exploded diagram of the heat exchanger in the embodiment of the utility model.
[0016] In the figure: 1. Super ammonia absorber; 11. Air supply pipe; 12. Synthetic ammonia pipe; 13. Conversion ammonia pipe; 14. Circulating drainage pipe; 15. Circulating water supply pipe; 16. Aeration pipe; 17. Heat exchanger; 18. Connecting seat; 19. Heat exchange plate; 2. Discharge pipe; 3. Ammonia tank; 4. Exhaust pipe; 5. Output pipe; 6. Tail gas absorption tower. DETAILED DESCRIPTION
[0017] like Figure 1-3 The utility model proposes an ammonia-containing condensate treatment system, comprising a super ammonia absorber 1, the super ammonia absorber 1 is connected to an ammonia water tank 3 through a discharge pipe 2, the bottom and top of the ammonia water tank 3 are respectively connected to a canning device and a tail gas absorption tower 6 through an output pipe 5 and an exhaust pipe 4, the super ammonia absorber 1 is connected to an air supply pipe 11 and an ammonia water inlet pipe, an aeration pipe 16 is arranged in parallel on the air supply pipe 11, the aeration pipe 16 is located below the ammonia water in the super ammonia absorber 1, a heat exchanger 17 is arranged in the super ammonia absorber 1, and the heat exchanger 17 is connected to a circulating drainage pipe 14 and a circulating water supply pipe 15.
[0018] The ammonia water produced by the conversion system is transported to the super ammonia absorber 1. After a set volume of ammonia water is formed in the super ammonia absorber 1, ammonia gas is transported to the super ammonia absorber 1 through the air supply pipe 11. The ammonia gas is transported to the bottom of the ammonia water through the aeration pipe 16 for aeration to increase the contact area between the ammonia gas and the ammonia water. At the same time, the heat exchanger 17 cools the ammonia water through the circulating drainage pipe 14 and the circulating water supply pipe 15 to ensure that the ammonia gas has a high solubility. During the continuous transportation of ammonia gas, the ammonia gas delivery amount is recorded by the gas flow meter on the air supply pipe 11. After reaching the set gas delivery amount, the ammonia gas delivery is stopped, and the ammonia gas dissolution is detected by the barometer inside the super ammonia absorber 1. After the pressure in the super ammonia absorber 1 reaches the set pressure, it indicates that the ammonia water has reached the set concentration, and then the ammonia water is discharged.
[0019] A cold-insulating layer is arranged outside the ammonia water tank 3 and the discharge pipe 2 .
[0020] like Figure 2 The heat exchanger 17 is located below the liquid level of the ammonia solution, and the output end of the aeration pipe 16 is located inside the heat exchanger 17 .
[0021] By arranging the heat exchanger 17 in the ammonia water, the temperature of the ammonia water near the heat exchanger 17 is low, and the ammonia gas output from the aeration pipe 16 preferentially contacts the ammonia water inside the heat exchanger 17, thereby increasing the dissolution rate of the ammonia gas.
[0022] like Figure 2 and Figure 3 As shown, in order to increase the contact area between the heat exchanger 17 and the ammonia water, the heat exchanger 17 includes a vertically arranged heat exchange plate 19 and a connecting seat 18 horizontally fixedly connected to both ends of the heat exchange plate 19, the two connecting seats 18 are respectively connected to the circulating drainage pipe 14 and the circulating water supply pipe 15, the heat exchange plates 19 are evenly distributed in the horizontal direction, and the aeration pipe 16 is located between adjacent heat exchange plates 19.
[0023] After being output through the aeration pipe 16, the ammonia gas is located between two adjacent heat exchange plates 19. The ammonia water between the two adjacent heat exchange plates 19 is at a lower temperature, so more ammonia gas can be dissolved, thereby increasing the overall concentration of the ammonia water. Moreover, arranging multiple heat exchange plates 19 can increase the contact area between the heat exchanger 17 and the ammonia water, thereby ensuring that the ammonia water is at a lower temperature.
[0024] The connection seat 18 at the top is provided with a fixing hole, the aeration pipe 16 passes through the fixing hole, and a gap is provided between the connection seat 18 and the inner wall of the super ammonia absorber 1 .
[0025] like Figure 1-3As shown, in order to facilitate the temperature control of the ammonia water inside the super ammonia absorber 1, the circulating drain pipe 14 is connected to the connecting seat 18 located above. By inputting circulating cooling water at the bottom and discharging circulating cooling water at the top, the flow rate of circulating cooling water is controlled, thereby controlling the heat exchange efficiency of the heat exchanger 17.
[0026] As a preferred embodiment of the utility model, during the reproduction process, if the amount of converted ammonia water produced by the conversion system does not meet the volume requirement of the primary ammonia water concentration, part of the synthesized ammonia water is transported for unified concentration to ensure the yield. The ammonia water inlet pipe is connected in parallel with a synthetic ammonia water pipe 12 and a converted ammonia water pipe 13.
Claims
1. An ammonia condensate treatment system, characterized in that: The invention comprises a super ammonia absorber (1), wherein the super ammonia absorber (1) is connected to an ammonia water tank (3) via a discharge pipe (2), wherein the bottom and top of the ammonia water tank (3) are connected to a canning device and an exhaust gas absorption tower (6) via an output pipe (5) and an exhaust pipe (4) respectively, wherein an air supply pipe (11) and an ammonia water inlet pipe are connected to the super ammonia absorber (1), an aeration pipe (16) is arranged in parallel on the air supply pipe (11), and the aeration pipe (16) is located below the ammonia water in the super ammonia absorber (1), and a heat exchanger (17) is arranged in the super ammonia absorber (1), and the heat exchanger (17) is connected to a circulating drainage pipe (14) and a circulating water supply pipe (15).
2. The ammonia-containing condensate treatment system according to claim 1, characterized in that: The heat exchanger (17) is located below the liquid level of the ammonia solution, and the output end of the aeration pipe (16) is located inside the heat exchanger (17).
3. The ammonia-containing condensate treatment system according to claim 2, characterized in that: The heat exchanger (17) comprises a vertically arranged heat exchange plate (19) and a connecting seat (18) horizontally fixedly connected to both ends of the heat exchange plate (19), the two connecting seats (18) being respectively connected to the circulating drainage pipe (14) and the circulating water supply pipe (15), the heat exchange plates (19) being equidistantly distributed in the horizontal direction, and the aeration pipe (16) being located between adjacent heat exchange plates (19).
4. The ammonia-containing condensate treatment system according to claim 3, characterized in that: A fixing hole is provided on the connection seat (18) located at the top, the aeration pipe (16) passes through the fixing hole, and a gap is provided between the connection seat (18) and the inner wall of the super ammonia absorber (1).
5. The ammonia-containing condensate treatment system according to claim 4, characterized in that: The circulating drainage pipe (14) is connected to the connecting seat (18) located above.
6. The ammonia-containing condensate treatment system according to claim 1, characterized in that: The ammonia water inlet pipe is connected in parallel with a synthetic ammonia water pipe (12) and a conversion ammonia water pipe (13).