Small-scale high-concentration ammonia-containing wastewater treatment and recovery device

Abstract

The utility model discloses a small-scale high-concentration ammonia-containing wastewater treatment and recovery device which comprises a deamination kettle, a steam tank is sleeved outside the deamination kettle, steam is filled in the steam tank, a filling gap capable of accommodating the steam is reserved between the steam tank and the deamination kettle, an alkaline solution is filled in the deamination kettle, and the alkaline solution is filled in the deamination kettle. A steam inlet is formed in the top of the steam tank, and a steam condensate outlet is formed in the bottom of the steam tank. According to the application, the deamination kettle is filled with an alkaline solution, the alkaline solution can react with ammonia-containing wastewater in the deamination kettle, the deamination kettle is directly placed in a steam tank, a filling gap is reserved between the steam tank and the deamination kettle, and steam in a steam pipe can uniformly heat the deamination kettle through the filling gap; therefore, the temperature is controlled at about 85 DEG C, and the generated ammonia gas can be recycled by a subsequent device.

Description

TECHNICAL FIELD

[0001] The utility model relates to wastewater treatment technical field especially relates to a small -scale high concentration ammonia -containing wastewater treatment recovery device. BACKGROUND

[0002] In the process of extracting precious metals from anode slime by wet method, liquid ammonia silver separation-hydrazine hydrate reduction process is used to extract silver and palladium, and ammonia complex process is used to purify the generated ammonia-containing wastewater, for 1t-2t / day of anode slime treatment capacity, about 3m3 / day of high-concentration ammonia-containing wastewater is generated in the treatment process.

[0003] For example, the publication number "CN221275298U" discloses "a dual-purpose evaporation and ammonia removal device", which includes a deamination tower, an ammonia-free distilled water tower and a condensation tower. The first output channel of the deamination tower is connected with the condensation tower, the second output channel is connected with the input end of the condensation tower through the ammonia-free distilled water tower, the condensation tower is connected with the deamination tower through the power pump pipeline, and the deamination tower is internally provided with a gas-liquid separation mechanism connected to the condensation tower through the first output channel, a stripping mechanism and a tower kettle from top to bottom. The stripping mechanism includes a wastewater pipe through the negative pressure tower cavity, a tower plate for deamination arranged on the wastewater pipe and a first steam channel for heating the tower plate and a second steam channel for deamination. However, in actual application, such equipment has high cost, more deamination steps and complex installation, and is not suitable for small-scale deamination recovery. SUMMARY

[0004] In view of the problems of high equipment cost and complicated operation of the prior art mentioned in the background, the utility model provides a small-scale high-concentration ammonia-containing wastewater treatment recovery device, which can reduce the space ratio of the device, reduce the production cost, reduce the deamination steps and improve the production efficiency.

[0005] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions.

[0006] The utility model provides a kind of small-scale high-concentration ammonia-containing wastewater treatment recovery device, including deaminase kettle, the deaminase kettle is sleeved with steam tank, the steam tank is filled with steam, the steam tank is left with the filling gap capable of containing steam between deaminase kettle, the deaminase kettle is filled with alkaline solution, the steam tank top is provided with steam inlet, the steam tank bottom is provided with steam condensate outlet.In the application, fill practice solution in deaminase kettle, reaction can occur with ammonia-containing wastewater in deaminase kettle by alkaline solution, wherein the deaminase kettle is directly placed in steam tank in the application, and filling gap is left between steam tank and deaminase kettle, steam in steam pipe can uniformly heat deaminase kettle by filling gap, so as to control temperature at about 85 DEG C, so as to generate ammonia gas to be recycled by subsequent device, and steam inlet is provided at the top of steam tank, so that steam can quickly fill the entire steam tank, and steam condensate outlet is provided at the bottom of steam tank, when steam heats deaminase kettle in steam tank, condensate is generated, which can be quickly discharged from the steam tank by the steam condensate outlet at the bottom.

[0007] As preferred, the deaminase kettle top is provided with an inlet hole, and the deaminase kettle bottom is provided with a post-deamination liquid discharge outlet. The waste liquid can be put into the deaminase kettle through the inlet hole at the top of the deaminase kettle, and the waste liquid after the heating reaction can be discharged and collected through the post-deamination liquid discharge outlet at the bottom of the deaminase kettle.

[0008] As preferred, the deaminase kettle is connected with a compressed air inlet pipe. The compressed air can be flushed into the deaminase kettle through the compressed air inlet pipe, thereby improving the removal speed of ammonia water and promoting the discharge of ammonia gas to improve the discharge efficiency of ammonia gas.

[0009] As preferred, the compressed air inlet pipe includes an air inlet located outside the deaminase kettle and an air outlet located inside the deaminase kettle. The air inlet of the compressed air inlet pipe is arranged outside the deaminase kettle, so that the compressed air can be conveniently flushed in, and the air outlet of the compressed air inlet pipe is arranged inside the deaminase kettle, so that the compressed air can fully promote the removal speed in the deaminase kettle to improve the production efficiency.

[0010] As preferred, the compressed air inlet pipe is in an "L" shape. The compressed air inlet pipe is arranged in an "L" shape, so that the air inlet of the compressed air inlet pipe is more stable, and the reaction is more complete.

[0011] As preferred, the deaminase kettle top is connected with an ammonia gas discharge pipe. The ammonia gas after the reaction can be discharged to the subsequent device through the ammonia gas discharge pipe by connecting the ammonia gas discharge pipe at the top of the deaminase kettle, and the ammonia gas discharge pipe is arranged at the top, which can facilitate the discharge efficiency of ammonia gas and improve the overall work efficiency.

[0012] As preferred, the deamination kettle is connected with an ammonia water collecting tank, and a condensing assembly is arranged between the deamination kettle and the ammonia water collecting tank.

[0013] As preferred, the condensing assembly comprises a plurality of tube condensing units, and each tube condensing unit is connected with the deamination kettle and the ammonia water collecting tank in series.

[0014] As preferred, each tube condensing unit is connected with a condensing water pipe in series, and cooling water flows through the condensing water pipe.

[0015] As preferred, the deamination kettle is connected with an ammonia water collecting tank, and a vacuum jet assembly is connected with the ammonia water collecting tank.

[0016] The wastewater treatment device has the advantages that ammonia in wastewater is effectively recycled and reused, the device has small investment and occupies small area, has good recycling effect, is suitable for small-scale high-concentration ammonia-containing wastewater treatment and recycling, can improve the recycling efficiency of ammonia, and can ensure the conversion rate of recycling. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a structural schematic view of the utility model.

[0018] Figure 2 is a structural schematic view of example 1.

[0019] Figure 3 is a structural schematic view of example 2.

[0020] Figure 4 is a structural schematic view of example 3.

[0021] In the picture:

[0022] 1. Ammonia removal vessel, 11. Manhole, 12. Ammonia removal liquid outlet, 13. Compressed air inlet pipe, 131. Air inlet, 132. Exhaust end, 14. Ammonia gas outlet pipe;

[0023] 2. Steam tank; 21. Filling gap; 22. Steam inlet; 23. Steam condensate outlet;

[0024] 3 condenser assembly, 31 tube-and-shell condenser unit, 32 condensate pipe;

[0025] 4. Ammonia water collection tank;

[0026] 5 Vacuum jet assembly, 51 Vacuum jet circulating water tank, 52 Circulation pipe, 53 Water jet ejector, 54 Jet pump. Detailed Implementation

[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0028] Example 1:

[0029] like Figure 1 , 2 As shown, a small-scale high-concentration ammonia-containing wastewater treatment and recovery device includes an ammonia removal vessel 1, an outer sleeve of the ammonia removal vessel 1 and a steam tank 2, the steam tank 2 being filled with steam, a filling gap 21 between the steam tank 2 and the ammonia removal vessel 1 to accommodate the steam, the ammonia removal vessel 1 being filled with an alkaline solution, a steam inlet 22 being provided at the top of the steam tank 2 and a steam condensate outlet 23 being provided at the bottom of the steam tank 2. In this application, an alkaline solution is filled into the ammonia removal vessel 1. The alkaline solution reacts with the ammonia-containing wastewater in the ammonia removal vessel 1. The ammonia removal vessel 1 is placed directly in the steam tank 2, with a filling gap 21 between the steam tank 2 and the ammonia removal vessel 1. The steam in the steam pipe can uniformly heat the ammonia removal vessel 1 through the filling gap 21, thereby controlling the temperature at about 85°C, so as to generate ammonia gas that can be recovered by subsequent devices. The top of the steam tank 2 is the steam inlet 22, which allows the steam to quickly fill the entire steam tank 2. The bottom of the steam tank 2 is provided with a steam condensate outlet 23. When the steam heats the ammonia removal vessel 1 in the steam tank 2, condensate is generated. The condensate in the steam tank 2 can be quickly discharged through the steam condensate outlet 23 at the bottom.

[0030] like Figure 2 As shown, the deammoniation reactor 1 has an inlet 11 at the top and a deammoniation liquid outlet 12 at the bottom. Waste liquid can be put into the deammoniation reactor 1 through the inlet 11 at the top, and the waste liquid after the reaction heating is completed can be discharged and collected through the deammoniation liquid outlet 12 at the bottom.

[0031] As shown in Figure 2 , the deamination kettle 1 is connected with a compressed air inlet pipe 13. Through the compressed air inlet pipe 13, compressed air can be rushed into the deamination kettle 1, thereby improving the removal speed of ammonia water, and promoting the discharge of ammonia gas and improving the discharge efficiency of ammonia gas.

[0032] As shown in Figure 2 , the compressed air inlet pipe 13 includes an air inlet 131 located outside the deamination kettle 1, and the compressed air inlet pipe 13 includes an exhaust end 132 located inside the deamination kettle 1. The air inlet 131 of the compressed air inlet pipe 13 is arranged outside the deamination kettle 1, so that the compressed air can be conveniently rushed in, and the exhaust end 132 of the compressed air inlet pipe 13 is arranged inside the deamination kettle 1, so that the compressed air can fully promote the removal speed in the deamination kettle 1 and improve the production efficiency.

[0033] As shown in Figure 2 , the compressed air inlet pipe 13 is of "L" type structure. The compressed air inlet pipe 13 is arranged in "L" type structure, so that the air inlet of the compressed air inlet pipe 13 is more stable, and the reaction is more sufficient.

[0034] As shown in Figure 2 , the deamination kettle 1 is connected with an ammonia gas discharge pipe 14 at the top. By connecting the ammonia gas discharge pipe 14 at the top of the deamination kettle 1, the reaction completed ammonia gas can be discharged to the subsequent device through the ammonia gas discharge pipe 14, and the ammonia gas discharge pipe 14 is arranged at the top, which can facilitate the discharge efficiency of ammonia gas and improve the overall work efficiency.

[0035] Example 2:

[0036] As shown in Figure 1 , 2As shown, a small-scale high-concentration ammonia-containing wastewater treatment and recovery device, comprising a deamination kettle 1, a steam tank 2 is connected to the deamination kettle 1, the steam tank 2 is filled with steam, and the steam tank 2 and the deamination kettle 1 are left with a filling gap 21 capable of containing steam. The deamination kettle 1 is filled with an alkaline solution. The steam inlet 22 is arranged at the top of the steam tank 2. The steam condensate outlet 23 is arranged at the bottom of the steam tank 2. In this application, the deamination kettle 1 is filled with an alkaline solution, which can react with the ammonia-containing wastewater in the deamination kettle 1. In this application, the deamination kettle 1 is directly placed in the steam tank 2, and a filling gap 21 is left between the steam tank 2 and the deamination kettle 1. The steam in the steam pipe can uniformly heat the deamination kettle 1 through the filling gap 21, so that the temperature is controlled at about 85°C, so that ammonia gas can be generated and recovered by the subsequent device. The steam inlet 22 is arranged at the top of the steam tank 2, so that the steam can quickly fill the entire steam tank 2. The steam condensate outlet 23 is arranged at the bottom of the steam tank 2. When the steam heats the deamination kettle 1 in the steam tank 2, condensate is generated. The steam condensate outlet 23 at the bottom can quickly discharge the condensate in the steam tank 2.

[0037] As Figure 2 shown, the deamination kettle 1 is provided with an inlet hole 11 at the top, and a deamination liquid discharge outlet 12 is arranged at the bottom of the deamination kettle 1. The waste liquid can be put into the deamination kettle 1 through the inlet hole 11 at the top of the deamination kettle 1. The waste liquid after the reaction is heated and completed can be discharged and collected through the deamination liquid discharge outlet 12 at the bottom of the deamination kettle 1.

[0038] As Figure 2 shown, the deamination kettle 1 is connected with a compressed air inlet pipe 13. The compressed air can be rushed into the deamination kettle 1 through the compressed air inlet pipe 13, so as to improve the removal speed of ammonia water, and promote the discharge of ammonia gas and improve the discharge efficiency of ammonia gas.

[0039] As Figure 2 shown, the compressed air inlet pipe 13 includes an air inlet 131 located outside the deamination kettle 1, and the compressed air inlet pipe 13 includes an exhaust end 132 located inside the deamination kettle 1. The air inlet 131 of the compressed air inlet pipe 13 is arranged outside the deamination kettle 1, so that the compressed air can be conveniently rushed in. The exhaust end 132 of the compressed air inlet pipe 13 is arranged inside the deamination kettle 1, so that the compressed air can fully promote the removal speed in the deamination kettle 1 and improve the production efficiency.

[0040] As Figure 2 shown, the compressed air inlet pipe 13 is in "L" shape. The compressed air inlet pipe 13 is arranged in "L" shape, so that the air inlet of the compressed air inlet pipe 13 is more stable, and the reaction is more sufficient.

[0041] As Figure 2As shown, the top of the deamination kettle 1 is connected with an ammonia exhaust pipe 14. By connecting the ammonia exhaust pipe 14 at the top of the deamination kettle 1, the reaction completed ammonia can be discharged to the subsequent device through the ammonia exhaust pipe 14, and the ammonia exhaust pipe 14 is arranged at the top, which can facilitate the discharge efficiency of the ammonia and improve the overall work efficiency.

[0042] As shown in Figure 3 , the deamination kettle 1 is connected with an ammonia water collecting tank 4, and a condensing assembly 3 is arranged between the deamination kettle 1 and the ammonia water collecting tank 4. The ammonia water collecting tank 4 can recycle the ammonia in the deamination kettle 1, and the condensing assembly 3 is arranged between the deamination kettle 1 and the ammonia water collecting tank 4, so that the ammonia can be condensed into ammonia water when passing through the condensing assembly 3, thereby improving the recycling efficiency of the ammonia water collecting tank 4 and increasing the collection amount of the ammonia.

[0043] As shown in Figure 3 , the condensing assembly 3 includes a plurality of tube condensing units 31, and each tube condensing unit 31 is connected in series with the deamination kettle 1 and the ammonia water collecting tank 4. The condensing assembly 3 includes a plurality of series-connected condensing units, which can improve the condensing efficiency and condense multiple times to increase the proportion of ammonia gas converted into ammonia water, reduce the proportion of ammonia gas in the ammonia water collecting tank 4, and improve the collection efficiency of the ammonia water.

[0044] As shown in Figure 3 , each tube condensing unit 31 is connected in series with a condensing water pipe 32, and cooling water flows through the condensing water pipe 32. By connecting the condensing water pipe 32 to each tube condensing unit 31, the ammonia flowing through the tube condensing unit 31 is cooled and liquefied by the condensing water flowing through the condensing water pipe 32, and the condensing water pipe 32 is connected in series with each tube condensing unit 31, so that the condensing water can be circulated in each tube condensing unit 31 by one water inlet and outlet.

[0045] Example 3:

[0046] As shown in Figure 1 , 2As shown, a small-scale high-concentration ammonia-containing wastewater treatment and recovery device, comprising a deamination kettle 1, a steam tank 2 is connected to the deamination kettle 1, the steam tank 2 is filled with steam, and the steam tank 2 and the deamination kettle 1 are left with a filling gap 21 capable of containing steam. The deamination kettle 1 is filled with an alkaline solution. The steam tank 2 is provided with a steam inlet 22 at the top, and a steam condensate outlet 23 at the bottom. In this application, the deamination kettle 1 is filled with an alkaline solution, which can react with the ammonia-containing wastewater in the deamination kettle 1. In this application, the deamination kettle 1 is directly placed in the steam tank 2, and a filling gap 21 is left between the steam tank 2 and the deamination kettle 1. The steam in the steam pipe can uniformly heat the deamination kettle 1 through the filling gap 21, so that the temperature is controlled at about 85°C, so that ammonia gas can be generated and recovered by the subsequent device. The steam inlet 22 is provided at the top of the steam tank 2, so that the steam can quickly fill the entire steam tank 2. The steam condensate outlet 23 is provided at the bottom of the steam tank 2, so that when the steam heats the deamination kettle 1 in the steam tank 2, condensate is generated, which can be quickly discharged from the steam tank 2 through the steam condensate outlet 23 at the bottom.

[0047] As shown, Figure 2 The deamination kettle 1 is provided with an inlet hole 11 at the top, and a deamination liquid outlet 12 at the bottom. The waste liquid can be put into the deamination kettle 1 through the inlet hole 11 at the top of the deamination kettle 1, and the waste liquid after the reaction is heated can be discharged and collected through the deamination liquid outlet 12 at the bottom of the deamination kettle 1.

[0048] As shown, Figure 2 The deamination kettle 1 is connected with a compressed air inlet pipe 13. The compressed air can be rushed into the deamination kettle 1 through the compressed air inlet pipe 13, thereby improving the removal speed of ammonia water and promoting the discharge of ammonia gas, improving the discharge efficiency of ammonia gas.

[0049] As shown, Figure 2 The compressed air inlet pipe 13 includes an air inlet 131 located outside the deamination kettle 1, and an exhaust end 132 located inside the deamination kettle 1. The air inlet 131 of the compressed air inlet pipe 13 is arranged outside the deamination kettle 1, so that the compressed air can be conveniently rushed in. The exhaust end 132 of the compressed air inlet pipe 13 is arranged inside the deamination kettle 1, so that the compressed air can fully promote the removal speed in the deamination kettle 1 and improve the production efficiency.

[0050] As shown, Figure 2 The compressed air inlet pipe 13 is in "L" shape. The compressed air inlet pipe 13 is arranged in "L" shape, so that the air inlet of the compressed air inlet pipe 13 is more stable, and the reaction is more sufficient.

[0051] As shown, Figure 2As shown, the top of the deamination kettle 1 is connected with an ammonia gas exhaust pipe 14. By connecting the ammonia gas exhaust pipe 14 at the top of the deamination kettle 1, the reaction completed ammonia gas can be discharged to the subsequent device through the ammonia gas exhaust pipe 14, and the ammonia gas exhaust pipe 14 is arranged at the top, which can improve the ammonia gas discharge efficiency and improve the overall working efficiency.

[0052] As shown in the figure, Figure 3 The deamination kettle 1 is connected with an ammonia water collecting tank 4, and a condensing assembly 3 is arranged between the deamination kettle 1 and the ammonia water collecting tank 4. The ammonia gas in the deamination kettle 1 can be recovered through the ammonia water collecting tank 4, and the condensing assembly 3 is arranged between the deamination kettle 1 and the ammonia water collecting tank 4. The ammonia gas can be condensed into ammonia water when passing through the condensing assembly 3, thereby improving the recovery efficiency of the ammonia water collecting tank 4 and increasing the collection amount of ammonia gas.

[0053] As shown in the figure, Figure 3 The condensing assembly 3 includes a plurality of tube condensing units 31, and each tube condensing unit 31 is connected in series with the deamination kettle 1 and the ammonia water collecting tank 4. The condensing assembly 3 includes a plurality of series-connected condensing units, which can improve the condensing efficiency and condense multiple times to increase the proportion of ammonia gas converted into ammonia water, reduce the proportion of ammonia gas in the ammonia water collecting tank 4, and improve the collection efficiency of ammonia water.

[0054] As shown in the figure, Figure 3 Each tube condensing unit 31 is connected in series with a condensing water pipe 32, and cooling water flows through the condensing water pipe 32. By connecting the condensing water pipe 32 to each tube condensing unit 31, the ammonia gas flowing through the tube condensing unit 31 is cooled and liquefied by the condensing water flowing through the condensing water pipe 32, and the condensing water pipe 32 is connected in series with each tube condensing unit 31, so that the condensing water can circulate in each tube condensing unit 31 through the inlet and outlet water.

[0055] As shown in the figure, Figure 4 The deamination kettle 1 is connected with an ammonia water collecting tank 4, and the ammonia water collecting tank 4 is connected with a vacuum jet assembly 5, which includes a vacuum jet circulating water tank 51, and the vacuum jet circulating water tank 51 is connected with a circulating pipe 52, and the circulating pipe 52 is provided with a water jet 53 and a jet pump 54. By connecting the ammonia water collecting tank 4 with the vacuum jet assembly 5, a negative pressure environment can be formed in the ammonia water collecting tank 4, so that the ammonia gas can move from the deamination kettle 1 to the ammonia water collecting tank 4, and the overall fluid flow direction is ensured.

Claims

1. A small-scale high-concentration ammonia-containing wastewater treatment and recovery device, characterized in that, The deamination kettle is provided with a steam tank outside which is filled with steam, and a filling gap capable of containing steam is left between the deamination kettle and the steam tank.

2. A device for treating and recovering ammonia from a small-scale high-concentration ammonia-containing wastewater according to claim 1, characterized in that, The deamination kettle is provided with an inlet hole at the top and a deamination liquid outlet at the bottom.

3. A device for treating and recovering ammonia from a small-scale high-concentration ammonia-containing wastewater according to claim 1, characterized in that, The deamination kettle is connected with a compressed air inlet pipe.

4. The device according to claim 3, wherein the device is characterized by, The compressed air inlet pipe is provided with an air inlet outside the deamination kettle and an air outlet inside the deamination kettle.

5. A small-scale high-concentration ammonia-containing wastewater treatment and recovery device according to claim 3, characterized in that, The compressed air inlet pipe is in "L" shape.

6. A small-scale high-concentration ammonia-containing wastewater treatment and recovery device as claimed in claim 1, characterized in that, The deamination kettle is connected with an ammonia gas outlet pipe.

7. The device according to any one of claims 1-6, wherein the device is a small-scale device for treating and recovering ammonia-containing wastewater with high concentration. The deamination kettle is connected with an ammonia water collecting tank, and a condensing assembly is arranged between the deamination kettle and the ammonia water collecting tank.

8. A small-scale high-concentration ammonia-containing wastewater treatment and recovery device according to claim 7, characterized in that, The condensing assembly comprises a plurality of tube condensing units, and each tube condensing unit is connected with the deamination kettle and the ammonia water collecting tank in series.

9. A small-scale high-concentration ammonia-containing wastewater treatment and recovery device according to claim 8, characterized in that, Each tube condensing unit is connected with a condensing water pipe in series, and cooling water flows through the condensing water pipe.

10. The device according to any one of claims 1-6, wherein the device is a small-scale device for treating and recovering ammonia-containing wastewater with high concentration. The deamination kettle is connected with an ammonia water collecting tank, and the ammonia water collecting tank is connected with a vacuum jet assembly, the vacuum jet assembly comprises a vacuum jet circulating water tank, the vacuum jet circulating water tank is connected with a circulating pipe, and the circulating pipe is provided with a water jet sprayer and a jet pump.

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