A new high-efficiency residual ammonia water purification device

Abstract

The utility model relates to ammonia water purification technical field discloses a novel high -efficient residual ammonia water purification device, including the casing, the lower end fixedly connected with the conical bottom of collecting sewage of casing, the inside fixedly connected with the baffle of casing and conical bottom of collecting sewage, the upper end of casing is equipped with the inspection port, the inside of one side casing is provided with first radar liquid level meter, the inside of the other side casing is provided with second radar liquid level meter, the upper end of one side casing of first radar liquid level meter is equipped with VOCs export, the upper end of the other side casing of second radar liquid level meter is equipped with nitrogen inlet, and the device can add demulsifier, flocculating agent and coagulant aid etc. to the system through the setting agitator cooperation chemical auxiliary agent entrance, under the stirring effect, accelerates oil and water separation and impurity agglomeration, forms easy to precipitate big granule, improves purification efficiency, and through first radar liquid level meter, the liquid level of primary purification section and depth purification section can be monitored in real time.

Description

Technical Field

[0001] This utility model relates to the field of ammonia water purification technology, specifically to a novel high-efficiency residual ammonia water purification device. Background Technology

[0002] When bituminous coal is carbonized at a high temperature of about 950 to 1050 degrees Celsius in the coke oven carbonization chamber, the organic matter in the coal undergoes a complex cracking reaction. Among them, oxygen-containing functional groups (such as carboxyl-COOH and hydroxyl-OH) decompose to generate water vapor. This part of the water is called "pyrolysis water" or "combined water". At the same time, the washed coal used by the coking plant itself contains about 10% to 12% surface moisture. When the coal is charged into the coke oven, this part of the water becomes the initial source of the residual ammonia water in the coking plant.

[0003] Existing ammonia purification devices cannot solve the problem of deposits in pipes, nozzles, heat exchangers (especially spiral plate heat exchangers), and ammonia stripping tower trays, which can easily lead to a reduction in the flow cross-section or even complete blockage, reducing the processing capacity and efficiency of the ammonia stripping tower. Furthermore, solid particles can accelerate the wear and tear of pumps, pipes, and nozzles. At the same time, they cannot reduce a series of problems such as CODcr in the residual ammonia water. Therefore, those skilled in the art provide a new type of high-efficiency residual ammonia water purification device to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to provide a novel, highly efficient residual ammonia water purification device to solve the problems mentioned in the background section of the prior art.

[0005] This utility model provides the following technical solution: a novel high-efficiency residual ammonia water purification device, comprising a shell, a conical sludge collection bottom fixedly connected to the lower end of the shell, a partition fixedly connected to the inner side of the shell and the conical sludge collection bottom, an inspection port opened at the upper end of the shell, a first radar level gauge arranged on the inner side of one side of the shell, a second radar level gauge arranged on the inner side of the other side of the shell, a VOCs outlet opened at the upper end of one side of the shell of the first radar level gauge, and a nitrogen inlet opened at the upper end of the other side of the shell of the second radar level gauge.

[0006] As a preferred embodiment of the above technical solution, an ammonia inlet is provided on the outer side of the shell near the upper end, a stirrer is fixedly connected to the inner side of the ammonia inlet, a chemical additive inlet is provided on the outer side of the ammonia inlet, an ammonia outlet is provided on the outer side of the shell below the ammonia inlet, and a sampling port is provided on the outer side of the ammonia outlet.

[0007] As a preferred embodiment of the above technical solution, an ammonia outlet 2 is provided on the outer side of the shell near the lower end, an ammonia outlet 3 is provided on the outer side of the shell below the ammonia outlet 2, and a cleaning port is provided on the outer side of the ammonia outlet 3.

[0008] As a preferred embodiment of the above technical solution, the outer side of the conical sludge collection bottom is provided with two sets of symmetrical sludge outlets. A cleaning pipe is provided on the outer side of the sludge outlets. A sliding rod is slidably connected to the inner side of the cleaning pipe. A pressure plate is fixedly connected to one end of the sliding rod. A spring is provided on the outer side of the sliding rod. One end of the spring is fixedly connected to the sliding rod, and the other end of the spring is fixedly connected to the cleaning pipe.

[0009] As a preferred embodiment of the above technical solution, a heater is provided on the outer side of the conical sludge collection bottom, one end of the heater is fixedly connected to a steam inlet, and the other end of the heater is fixedly connected to a condensate outlet.

[0010] As a preferred embodiment of the above technical solution, two sets of symmetrical thermometers are fixedly connected to the inner side of the conical sludge collection bottom, and the temperature sensing element of the thermometer is located on the inner side of the conical sludge collection bottom.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This device, equipped with a stirrer and chemical additive inlet, allows the addition of demulsifiers, flocculants, and coagulants to the system. The stirring action accelerates oil-water separation and impurity agglomeration, forming large, easily precipitated particles, thus improving purification efficiency. Two sets of radar level gauges monitor the liquid levels in the primary and deep purification sections in real time, ensuring the level is controlled within a reasonable range of 200-500mm from the top of the baffle. A thermometer, heater, and steam inlet work together to precisely control the temperature of the purification section between 50-80 degrees Celsius, adapting to the physicochemical properties of different impurities and ensuring stable purification results. Both the primary and deep purification sections are equipped with drain outlets, each fitted with a cleaning pipe, slide bar, pressure plate, and spring. In case of blockage, pressing the slide bar moves the pressure plate to push out the dirt, and the spring prevents the slide bar from sliding freely, ensuring smooth drainage and reducing maintenance difficulty. Attached Figure Description

[0013] Figure 1 A schematic diagram of a novel, highly efficient residual ammonia water purification device.

[0014] Figure 2 This is a three-dimensional cross-sectional view of a novel, highly efficient residual ammonia water purification device.

[0015] Figure 3 This is a new type of high-efficiency residual ammonia water purification device. Figure 2 Enlarged schematic diagram of part A in the middle.

[0016] Legend:

[0017] 1. Shell; 2. Conical sludge collection bottom; 3. Baffle; 4. Inspection port; 5. First radar level gauge; 6. VOCs outlet; 7. Nitrogen inlet; 8. Ammonia inlet; 9. Stirrer; 10. Chemical auxiliaries inlet; 11. Ammonia outlet one; 12. Sampling port; 13. Ammonia outlet two; 14. Ammonia outlet three; 15. Cleaning port; 16. Drain outlet; 17. Cleaning pipe; 18. Sliding rod; 19. Pressing plate; 20. Spring; 21. Heater; 22. Steam inlet; 23. Condensate outlet; 24. Thermometer; 25. Second radar level gauge. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0019] Please see Figures 1-2 As shown, this utility model provides a technical solution: a novel high-efficiency residual ammonia water purification device, including a shell 1, a conical sludge collection bottom 2 fixedly connected to the lower end of the shell 1, a partition 3 fixedly connected to the inner side of the shell 1 and the conical sludge collection bottom 2, an inspection port 4 opened at the upper end of the shell 1, a first radar level gauge 5 provided on the inner side of one side of the shell 1, a second radar level gauge 25 provided on the inner side of the shell 1 on the other side of the shell 1, a VOCs outlet 6 opened at the upper end of one side of the shell 1 with the first radar level gauge 5, and a nitrogen inlet 7 opened at the upper end of the shell 1 on the other side of the shell 1 with the second radar level gauge 25.

[0020] As one implementation method in this embodiment, please refer to Figures 1-2 As shown, an ammonia inlet 8 is located near the upper part of the outer side of the shell 1. A stirrer 9 is fixedly connected to the inner side of the ammonia inlet 8. A chemical additive inlet 10 is located outside the ammonia inlet 8. An ammonia outlet 11 is located below the ammonia inlet 8 on the outer side of the shell 1. A sampling port 12 is located outside the ammonia outlet 11. Harmful substances enter the stirrer 9 through the ammonia inlet 8. At the same time, demulsifiers, flocculants, and coagulants are added through the chemical additive inlet 10, thereby promoting the separation of oil and water and the agglomeration of other impurities, forming large particles that settle rapidly. The remaining ammonia water after the addition of demulsifiers, flocculants, and coagulants enters the primary purification section near the ammonia inlet 8. The remaining ammonia water after purification is sampled and analyzed through the sampling port 12. When the test results meet the set indicators of the shell 1 outlet, it is directly discharged into the remaining ammonia water clear liquid tank through the ammonia outlet 11 for later use.

[0021] As one implementation method in this embodiment, please refer to Figures 1-2As shown, an ammonia outlet 2 13 is provided on the outer side of the shell 1 near the lower end. An ammonia outlet 3 14 is provided on the outer side of the shell 1 below the ammonia outlet 2 13. A cleaning port 15 is provided on the outer side of the ammonia outlet 3 14. When the ammonia outlet 2 13 and the ammonia outlet 3 14 are opened, and the water quality is judged to be qualified by the water output index, the purified remaining ammonia water is discharged into the remaining ammonia water clear liquid tank for later use. The ammonia outlet 3 14 is cleaned through the cleaning port 15.

[0022] As one implementation method in this embodiment, please refer to Figure 3 As shown, two sets of symmetrical drain ports 16 are provided on the outer side of the conical sludge collection bottom 2. A cleaning pipe 17 is provided on the outer side of the drain port 16. A sliding rod 18 is slidably connected to the inner side of the cleaning pipe 17. A pressure plate 19 is fixedly connected to one end of the sliding rod 18. A spring 20 is provided on the outer side of the sliding rod 18. One end of the spring 20 is fixedly connected to the sliding rod 18, and the other end of the spring 20 is fixedly connected to the cleaning pipe 17. The drain port 16 of the primary purification section is opened to drain the sludge. If there is a blockage or the sludge is not drained smoothly, hold the outer side of the sliding rod 18 and press it towards the drain port 16. The pressure plate 19 pushes the dirt out of the drain port 16 at the lower end of the cleaning pipe 17 to clean and unclog the pipe. The spring 20 connects the sliding rod 18 and the cleaning pipe 17 and prevents the sliding rod 18 from sliding down and interfering with the sludge discharge. After the liquid in the drain port 16 of the primary purification section is clear and transparent, the valve of the drain port 16 is closed.

[0023] As one implementation method in this embodiment, please refer to Figures 1-2 As shown, a heater 21 is provided on the outside of the conical sludge collection bottom 2. One end of the heater 21 is fixedly connected to a steam inlet 22, and the other end of the heater 21 is fixedly connected to a condensate outlet 23. After confirming that the condensate outlet 23 pipe is unobstructed, the steam inlet 22 is opened to heat the heater 21.

[0024] As one implementation method in this embodiment, please refer to Figures 1-2 As shown, two sets of symmetrical thermometers 24 are fixedly connected to the inner side of the conical sludge collection bottom 2. The temperature sensing element of the thermometer 24 is set on the inner side of the conical sludge collection bottom 2, and the temperature is controlled between 50 and 80 degrees Celsius according to the temperature displayed by the thermometer 24 inside the housing 1.

[0025] Working Principle: During operation, the baffle 3, which is jointly installed on the inner side of the shell 1 and the conical sludge collection bottom 2, divides the device into two parts. The side closer to the ammonia inlet 8 is the primary purification section, and the side closer to the ammonia outlet 13 is the deep purification section. However, there is a distance of 500-1000mm between the upper end of the baffle 3 and the top of the shell 1. The ammonia inlet 8 contains harmful substances such as small tar particles, free carbon, tiny particles released during coal charging and coking operations, emulsified tar, naphthalene, ammonium salt crystals, and corrosion products. These substances enter the agitator 9 through the ammonia inlet 8. At the same time, demulsifiers, flocculants, and coagulants are added through the chemical additive inlet 10, thereby promoting the separation of oil and water and the agglomeration of other impurities, forming large particles that settle rapidly. The remaining ammonia water, after the addition of demulsifiers, flocculants, and coagulants, enters the agitator 9. Enter the primary purification section near the ammonia inlet 8. When the level gauge 5 at the top of the primary purification section shows that the distance to the top of the baffle 3 is 200-500mm lower, close the ammonia inlet 8 and the chemical additive inlet 10. Confirm that the condensate outlet 23 is unobstructed. Then open the steam inlet 22 and heat the heater 21. Depending on the different impurities and physicochemical properties in the remaining ammonia, control the temperature between 50-80 degrees Celsius according to the temperature displayed by the thermometer 24 in the primary purification section. Then let it stand for 2-6 hours. After completion, open the drain port 16 of the primary purification section to drain the wastewater. If blockage or poor drainage occurs, hold the outside of the slide bar 18 and press it towards the drain port 16. The pressure plate 19 will push the dirt out of the lower end of the cleaning pipe 17. Sewage outlet 16 is used for pipe cleaning and unblocking. Spring 20 connects slide rod 18 and cleaning pipe 17 and prevents slide rod 18 from sliding downwards and interfering with sewage discharge. After the liquid in sewage outlet 16 of the primary purification section is clear and transparent, the valve of sewage outlet 16 is closed. After completion, the remaining ammonia water after purification is sampled and analyzed through sampling port 12. When the test results meet the set index of the shell 1 outlet, it is directly discharged into the remaining ammonia water clear liquid tank through ammonia water outlet 11 for later use. If the remaining ammonia water index after sampling and analysis does not meet the set index of the shell 1 outlet, the remaining ammonia water with added chemical additives is continued to be introduced into the shell 1 through ammonia water inlet 8 until the liquid level in the primary purification section exceeds the top of the partition 3. Then, water is injected into the deep purification section near the ammonia water outlet 13 to the second radar. When the level gauge 25 shows that the distance to the top of the baffle 3 is 200-500mm below the level of the liquid level, close the ammonia inlet 8 and chemical auxiliary agent inlet 10 valves. Adjust the temperature of the remaining ammonia in the deep purification section to between 50-80 degrees Celsius, as indicated by the thermometer 24. Let it stand for 2-3 hours. During this operation, the primary purification section is filled with the remaining ammonia containing demulsifier, flocculant, and coagulant aid. Then, control the temperature between 50-80 degrees Celsius according to the temperature displayed by the thermometer 24 in the deep purification section, and let it stand for 2-6 hours. Discharge the wastewater as needed, and take samples of the purified remaining ammonia for testing and analysis to determine whether it can be discharged subsequently. After reaching the temperature target and the required standing time, open the ammonia outlet 2 13 and ammonia outlet 3 14 in sequence.Furthermore, after determining that the effluent meets the acceptable standards, the remaining purified ammonia water is discharged into the remaining ammonia water clearing tank for later use. The ammonia water outlet 14 is cleaned through cleaning port 15, and the valve is opened from the deep purification section drain port 16 to drain the wastewater. If blockage or poor drainage occurs, the above steps are repeated. The condition inside the shell 1 is checked through inspection port 4. The top of the shell 1 is designed with a VOCs outlet 6 to collect and purify odorous gases within the unit. To prevent negative pressure or displacement within the unit, a nitrogen inlet 7 is provided at the top for automatic pressure replenishment and safe displacement.

[0026] The above embodiments are only used to illustrate the technical solution of this utility model, and are not intended to limit it.

Claims

1. A novel high-efficiency residual ammonia water purification device, comprising a shell (1), characterized in that: The lower end of the housing (1) is fixedly connected to a conical sludge collection bottom (2). The inner sides of the housing (1) and the conical sludge collection bottom (2) are fixedly connected to a partition (3). An inspection port (4) is opened at the upper end of the housing (1). A first radar level gauge (5) is provided on the inner side of one side of the housing (1) of the (4). A second radar level gauge (25) is provided on the inner side of the other side of the housing (1) of the (4). A VOCs outlet (6) is opened at the upper end of one side of the housing (1) of the first radar level gauge (5). A nitrogen inlet (7) is opened at the upper end of the other side of the housing (1) of the second radar level gauge (25).

2. The novel high-efficiency residual ammonia water purification device according to claim 1, characterized in that: An ammonia inlet (8) is provided on the outer side of the shell (1) near the upper end. A stirrer (9) is fixedly connected to the inner side of the ammonia inlet (8). A chemical auxiliary inlet (10) is provided on the outer side of the ammonia inlet (8). An ammonia outlet (11) is provided on the outer side of the shell (1) below the ammonia inlet (8). A sampling port (12) is provided on the outer side of the ammonia outlet (11).

3. The novel high-efficiency residual ammonia water purification device according to claim 1, characterized in that: An ammonia outlet 2 (13) is provided on the outer side of the shell (1) near the lower end. An ammonia outlet 3 (14) is provided on the outer side of the shell (1) below the ammonia outlet 2 (13). A cleaning port (15) is provided on the outer side of the ammonia outlet 3 (14).

4. The novel high-efficiency residual ammonia water purification device according to claim 1, characterized in that: The conical sludge collection bottom (2) has two sets of symmetrical drain outlets (16) on its outer side. A cleaning pipe (17) is provided on the outer side of the drain outlet (16). A sliding rod (18) is slidably connected to the inner side of the cleaning pipe (17). A pressure plate (19) is fixedly connected to one end of the sliding rod (18). A spring (20) is provided on the outer side of the sliding rod (18). One end of the spring (20) is fixedly connected to the sliding rod (18), and the other end of the spring (20) is fixedly connected to the cleaning pipe (17).

5. A novel high-efficiency residual ammonia water purification device according to claim 1, characterized in that: A heater (21) is provided on the outside of the conical sludge collection bottom (2). One end of the heater (21) is fixedly connected to a steam inlet (22), and the other end of the heater (21) is fixedly connected to a condensate outlet (23).

6. The novel high-efficiency residual ammonia water purification device according to claim 1, characterized in that: Two sets of symmetrical thermometers (24) are fixedly connected to the inner side of the conical dirt collection bottom (2), and the temperature sensing element of the thermometer (24) is located on the inner side of the conical dirt collection bottom (2).

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