Recovery device for ammonia water after ammonia stripping

Abstract

The utility model relates to the field of coal gas purification especially relates to a recovery unit after ammonia water steaming ammonia, including the sedimentation tank, the one side outer wall top department of sedimentation tank is connected with the inlet pipe, and the one side outer wall middle part of sedimentation tank is connected with the processing pipe, the bottom center of sedimentation tank is connected with the discharge pipe, and the top outer wall of sedimentation tank is equipped with exhaust component, the bottom end four side outer walls of sedimentation tank are equipped with heating assembly all;Heating assembly includes the connecting port of setting up in the outer wall of sedimentation tank, the sealed cabin of sealing installation in the outer wall of connecting port department and the heater of installing in the inner wall of sealed cabin;Exhaust component includes the installation bucket, the exhaust pipe of connecting in the top center of installation bucket and the exhaust fan of installing in the top inner wall of installation bucket. The utility model wastewater and waste are automatically discharged to mechanization clarifying tank, and the labor intensity of production post staff is reduced, and the production parameter is tempered, and the qualified discharge is obtained after the effective purification of waste gas, and the manual direct participation is avoided.

Description

Technical Field

[0001] This utility model relates to the field of coal gas purification technology, and in particular to a device for recovering ammonia after ammonia stripping. Background Technology

[0002] The residual ammonia water from the gas purification unit is treated by the ammonia stripping tower and then discharged into the tar discharge tank through the bottom discharge pipe. The discharged substances are wastewater, waste gas, and waste. The wastewater is collected in the underground ammonia stripping tank and then periodically pumped manually to the mechanized clarification tank using a submersible pump. The waste accumulates at the bottom of the tar discharge tank and is periodically scooped out manually, loaded onto trucks, and transported to the tar residue bin.

[0003] The wastewater and waste treatment process requires manual operation throughout, which brings a lot of labor intensity to the production staff. At the same time, direct human intervention in production operations also brings instability to production parameters. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned problems and shortcomings by proposing an ammonia recovery device after ammonia stripping: wastewater and waste are automatically discharged to a mechanized clarification tank, reducing the labor intensity for production staff, improving production parameters, and ensuring that waste gas is effectively purified before being discharged in compliance with regulations, thus avoiding direct manual intervention.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A device for recovering ammonia after ammonia stripping in ammonia water includes a sedimentation hopper. An inlet pipe is connected to the top of one side of the outer wall of the sedimentation hopper, and a processing pipe is connected to the middle of one side of the outer wall of the sedimentation hopper. An outlet pipe is connected to the center of the bottom of the sedimentation hopper, and an exhaust assembly is installed on the top outer wall of the sedimentation hopper. Heating assemblies are provided on all four sides of the bottom outer wall of the sedimentation hopper. The heating assembly includes a connection port opened on the outer wall of the sedimentation hopper, a sealing chamber sealed on the outer wall of the connection port, and a heater installed on the inner wall of the sealing chamber. The exhaust assembly includes an installation hopper, an exhaust pipe connected to the center of the top of the installation hopper, and an exhaust fan installed on the inner wall of the top of the installation hopper.

[0007] Preferably, the outer wall of the other end of the treatment pipe is connected to an underground ammonia stripping tank, and an electric valve is installed at one end of the treatment pipe.

[0008] Preferably, a slurry pump is installed on the bottom outer wall of the sedimentation hopper at the discharge pipe, and the input end of the slurry pump is connected to the bottom end of the sedimentation hopper, and the output end of the slurry pump is connected to one end of the discharge pipe.

[0009] Preferably, the bottom of the installation hopper is installed on the top of the sedimentation hopper and the top outer wall of the ammonia stripping underground tank, and support legs are installed at the four corners of the bottom outer wall of the sedimentation hopper.

[0010] Preferably, an electric ball valve is installed on the inner wall of one end of the inlet pipe, and a temperature sensor is installed on the inner wall of the bottom of the sedimentation hopper.

[0011] Preferably, liquid level sensors are installed on the inner wall of the sedimentation tank at both the top and bottom of the processing tube.

[0012] Preferably, the heater, electric ball valve, electric valve, slurry pump, and exhaust fan are connected to the PLC controller via wires, and the PLC controller is connected to the power supply via wires.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. Wastewater and waste are automatically discharged into a mechanized clarification tank, which reduces the labor intensity of production staff, improves production parameters, and ensures that exhaust gas is effectively purified before being discharged in compliance with regulations, thus avoiding direct manual intervention.

[0015] 2. The waste enters the sedimentation tank 1 through the inlet pipe 2 and settles. The waste settles on the bottom inner wall of the sedimentation tank 1. The oil and sludge mixture at the bottom is kept above 65°C by the heater 16 and the temperature sensor 18, which is convenient for control and processing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of an ammonia recovery device after ammonia stripping in water, as proposed in this utility model.

[0017] Figure 2 This is a schematic diagram of the installation bucket structure of a recovery device for ammonia water after ammonia stripping, as proposed in this utility model.

[0018] Figure 3 This is a cross-sectional structural schematic diagram of an ammonia recovery device after ammonia stripping in ammonia water, as proposed in this utility model.

[0019] Figure 4 This is a schematic diagram of the bottom structure of a recovery device after ammonia stripping in ammonia water, as proposed in this utility model.

[0020] In the diagram: 1 sedimentation hopper, 2 inlet pipe, 3 processing pipe, 4 outlet pipe, 5 heating assembly, 6 exhaust assembly, 7 installation hopper, 8 exhaust pipe, 9 exhaust fan, 10 electric ball valve, 11 electric valve, 12 slurry pump, 13 support leg, 14 connection port, 15 sealed chamber, 16 heater, 17 liquid level sensor, 18 temperature sensor. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0022] Example:

[0023] Reference Figure 1-4 A device for recovering ammonia after steam distillation in ammonia water includes a sedimentation hopper 1, an inlet pipe 2 connected to the top of one side outer wall of the sedimentation hopper 1, a treatment pipe 3 connected to the middle of one side outer wall of the sedimentation hopper 1, an outlet pipe 4 connected to the center of the bottom of the sedimentation hopper 1, an exhaust assembly 6 installed on the top outer wall of the sedimentation hopper 1, and heating assemblies 5 installed on the four sides of the bottom of the sedimentation hopper 1. Wastewater and waste are automatically discharged to a mechanized clarification tank, which reduces the labor intensity of production workers, improves production parameters, and ensures that the exhaust gas is effectively purified before being discharged in compliance with regulations.

[0024] The heating assembly 5 includes a connection port 14 opened on the outer wall of the sedimentation tank 1, a sealing chamber 15 sealed and installed on the outer wall of the connection port 14, and a heater 16 installed on the inner wall of the sealing chamber 15.

[0025] The other end of the treatment pipe 3 is connected to an underground ammonia stripping tank, and an electric valve 11 is installed at one end of the treatment pipe 3. After the wastewater volume submerges the two liquid level sensors 17, the electric valve 11 on the treatment pipe 3 is activated, and the electric valve 11 flows the wastewater to the underground ammonia stripping tank.

[0026] A slurry pump 12 is installed on the bottom outer wall of the sedimentation tank 1 at the discharge pipe 4, and the input end of the slurry pump 12 is connected to the bottom end of the sedimentation tank 1, and the output end of the slurry pump 12 is connected to one end of the discharge pipe 4.

[0027] Reference Figure 2-4 The exhaust assembly 6 includes an installation hopper 7, an exhaust pipe 8 connected to the center of the top of the installation hopper 7, and an exhaust fan 9 installed on the inner wall of the top of the installation hopper 7. The waste gas generated by the sedimentation hopper 1 under the action of the heater 16 and the waste gas generated by the heating of the ammonia stripping underground tank are sent to the acid washing circulation tower and the alkali washing circulation tower in sequence through the exhaust fan 9 in the installation hopper 7.

[0028] The bottom of the hopper 7 is installed on the top of the sedimentation hopper 1 and the top outer wall of the ammonia stripping underground tank, and support legs 13 are installed at the four corners of the bottom outer wall of the sedimentation hopper 1.

[0029] An electric ball valve 10 is installed on the inner wall of one end of the inlet pipe 2, and a temperature sensor 18 is installed on the bottom inner wall of the sedimentation tank 1. The electric ball valve 10 is opened for 10 minutes every 2 hours, allowing the external sewage to enter the sedimentation tank 1 through the inlet pipe 2 for static sedimentation.

[0030] Liquid level sensors 17 are installed on the inner wall of the sedimentation tank 1 at the top and bottom of the processing tube 3, respectively.

[0031] The heater 16, electric ball valve 10, electric valve 11, slurry pump 12 and exhaust fan 9 are connected to the PLC controller via wires, and the PLC controller is connected to the power supply via wires.

[0032] Working principle: During use, the electric ball valve 10 is opened for 10 minutes every 2 hours, allowing the external sewage to enter the sedimentation tank 1 through the inlet pipe 2 for settling. The waste settles on the bottom inner wall of the sedimentation tank 1. After the wastewater volume submerges the two liquid level sensors 17, the electric valve 11 on the treatment pipe 3 is activated. The electric valve 11 flows the wastewater to the ammonia stripping underground tank. The waste in the sedimentation tank 1 activates the heater 16 in the sealed chamber 15. The lower oil sludge mixture is kept above 65°C by the action of the heater 16 and the temperature sensor 18. The waste gas generated in the sedimentation tank 1 by the heater 16 and the waste gas generated by the heating of the wastewater in the ammonia stripping underground tank are sent to the acid washing circulation tower and the alkali washing circulation tower in sequence through the exhaust fan 9 installed in the tank 7. The liquid level of the ammonium sulfate mother liquor in the acid washing circulation tower is controlled at 0.5-3m. The mother liquor at the bottom of the acid washing circulation tower is sent to the top of the tower for spraying inside the tower. The mother liquor is replaced once a week. The liquid alkali level in the alkali washing circulation tower is controlled at 0.5-3m. The mother liquor from the bottom of the alkali washing circulation tower is sent to the top of the tower for spraying inside the tower. The alkali solution is replaced once a week and is washed by countercurrent spraying of ammonium sulfate mother liquor and liquid alkali to remove contaminants. After that, it is discharged into the atmosphere through the vent pipe at the top of the alkali washing circulation tower. The waste at the bottom of the sedimentation hopper 1 is heated and then sent to the mechanized clarification tank through the slurry pump 12.

[0033] Wastewater and waste are automatically discharged into a mechanized clarification tank, which reduces the labor intensity of production staff, improves production parameters, and ensures that exhaust gas is effectively purified before being discharged in compliance with regulations.

[0034] Mechanized clarification tank: This tank primarily separates tar, ammonia water, and tar residue based on the different specific gravities of the materials. The tank consists of three layers: an upper layer of ammonia water, a middle layer of tar, and a lower layer of tar residue. The tar residue settled at the bottom is conveyed by a scraper conveyor to a drain nozzle and discharged from the tank. The tar flows to the tar tank via a liquid level regulator, while the clarified ammonia water overflows from the top into a circulating ammonia water tank.

[0035] The exemplary embodiments of the present invention have been described in detail herein with reference to examples. However, those skilled in the art will understand that various modifications and alterations can be made to the specific embodiments described above without departing from the spirit of the present invention, and various combinations can be made to the various technical features and structures proposed in the present invention without exceeding the protection scope of the present invention, which is determined by the appended claims. The foregoing description of specific exemplary embodiments of the present invention is not intended to limit the present invention to the precise forms disclosed, and it is obvious that many changes and variations can be made based on the above teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the present invention and its practical applications, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the present invention, as well as various different choices and variations. The scope of the present invention is intended to be defined by the claims and their equivalents.

Claims

1. A device for recovering ammonia after ammonia distillation, comprising a sedimentation tank (1), characterized in that, An inlet pipe (2) is connected to the top of one side outer wall of the sedimentation hopper (1), and a processing pipe (3) is connected to the middle of one side outer wall of the sedimentation hopper (1). An outlet pipe (4) is connected to the center of the bottom of the sedimentation hopper (1), and an exhaust assembly (6) is installed on the top outer wall of the sedimentation hopper (1). Heating assemblies (5) are provided on the four sides of the bottom of the sedimentation hopper (1). The heating assembly (5) includes a connection port (14) opened on the outer wall of the sedimentation tank (1), a sealing chamber (15) sealed and installed on the outer wall of the connection port (14), and a heater (16) installed on the inner wall of the sealing chamber (15). The exhaust assembly (6) includes a mounting hopper (7), an exhaust pipe (8) connected to the center of the top of the mounting hopper (7), and an exhaust fan (9) mounted on the inner wall of the top of the mounting hopper (7).

2. The ammonia recovery device after ammonia stripping according to claim 1, characterized in that, The outer wall of the other end of the treatment pipe (3) is connected to an underground ammonia steaming tank, and an electric valve (11) is installed at one end of the treatment pipe (3).

3. The ammonia recovery device after ammonia stripping according to claim 1, characterized in that, A slurry pump (12) is installed on the bottom outer wall of the sedimentation tank (1) at the discharge pipe (4), and the input end of the slurry pump (12) is connected to the bottom end of the sedimentation tank (1), and the output end of the slurry pump (12) is connected to one end of the discharge pipe (4).

4. The ammonia recovery device after ammonia stripping according to claim 1, characterized in that, The bottom of the installation bucket (7) is installed on the top of the sedimentation bucket (1) and the top outer wall of the ammonia stripping underground tank, and support legs (13) are installed at the four corners of the bottom outer wall of the sedimentation bucket (1).

5. The ammonia recovery device after ammonia stripping according to claim 1, characterized in that, An electric ball valve (10) is installed on the inner wall of one end of the inlet pipe (2), and a temperature sensor (18) is installed on the inner wall of the bottom of the sedimentation tank (1).

6. The ammonia recovery device after ammonia stripping according to claim 1, characterized in that, Liquid level sensors (17) are installed on the inner wall of the sedimentation tank (1) at the top and bottom of the processing tube (3).

7. The ammonia recovery device after ammonia stripping according to claim 1, characterized in that, The heater (16), electric ball valve (10), electric valve (11), slurry pump (12) and exhaust fan (9) are connected to the PLC controller via wires, and the PLC controller is connected to the power supply via wires.

Images