Coal coking ammonia wastewater treatment and recycling device
By designing a wastewater treatment and recycling device for coal coking ammonia, heat exchangers and cooling plates are used for heat exchange, which solves the problem of high wastewater temperature, reduces wastewater temperature and reuses heat, thereby reducing treatment costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-03-13
AI Technical Summary
In the existing wastewater treatment process after ammonia production in coal coking, the wastewater temperature is high and not effectively utilized, which increases consumption costs and requires additional treatment.
A wastewater treatment and recycling device for coal coking ammonia production was designed. By setting up heat exchange jackets and cooling plates, heat exchange medium is used to exchange heat with wastewater, thereby reducing the temperature of the wastewater and enabling its reuse.
This effectively reduced wastewater temperature and enabled the reuse of heat, thereby reducing treatment costs and energy consumption.
Smart Images
Figure CN223992531U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of chemical wastewater treatment technology, specifically a device for treating and recycling wastewater after coal coking and ammonia production. Background Technology
[0002] Coal coking, also known as high-temperature coal dry distillation, is a coal conversion process that uses coal as raw material. Under air-isolated conditions, the coal is heated to approximately 950°C and then dry distilled to produce coke, while simultaneously obtaining coal gas, coal tar, and recovering other chemical products.
[0003] The phenol and cyanide section of the coal coking chemical production workshop receives wastewater from the entire plant every day, including a large amount of ammonia post-treatment wastewater. Sending such a large amount of ammonia post-treatment wastewater to the sewage treatment plant will inevitably increase various consumptions (chemicals, water, electricity, air, steam, etc.). Moreover, the existing ammonia post-treatment wastewater has a high temperature, and this heat is not well utilized, so it still needs to be treated.
[0004] Therefore, we propose a device for the treatment and recycling of wastewater from coal coking ammonia production. Utility Model Content
[0005] The purpose of this invention is to provide a device for treating and recycling wastewater from coal coking ammonia production, in order to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a coal coking ammonia post-wastewater treatment and recycling device, comprising a fixed frame, a cooling plate fixedly installed at the bottom inside the fixed frame, a heat exchange sleeve fixedly installed above the cooling plate inside the fixed frame, a cooling pipe penetrating through the middle of the cooling plate, fixed plates fixedly installed at both ends of the heat exchange sleeve, a connecting sleeve fixedly installed at one end of the heat exchange sleeve on one side of the fixed plate, a flow guide shroud fixedly installed at the other end of the heat exchange sleeve on one side of another fixed plate, a waste liquid inlet integrally provided at the top of the connecting sleeve, a waste liquid outlet integrally provided at the bottom of the connecting sleeve, one end of the cooling pipe fixedly installed to the waste liquid outlet, a partition plate fixedly installed inside the connecting sleeve, a connecting pipe fixedly installed through the fixed plate, a flow guide plate provided in the middle inside the heat exchange sleeve, a connecting groove opened on the side of the flow guide plate near the flow guide shroud, a medium outlet integrally provided at the top of the heat exchange sleeve near the connecting sleeve, and a medium inlet integrally provided at the bottom of the heat exchange sleeve near the connecting sleeve.
[0007] Optionally, several of the connecting pipes are evenly and parallelly arranged inside the heat exchange sleeve, with both ends of the connecting pipes respectively sealed and installed through two fixed plates, and the connecting pipes are symmetrically distributed on the upper and lower sides of the guide plate.
[0008] Optionally, the guide plate and the partition plate are located on the same horizontal plane, the thickness of the guide plate is the same as the thickness of the bottom of the guide plate, and the interior of the guide plate and the partition plate is filled with heat insulation material.
[0009] Optionally, the top and bottom of the guide plate are integrally connected with a flow disturbance plate, and the side of the flow disturbance plate is in close contact with the inside of the heat exchange sleeve.
[0010] Optionally, a cooling fan located below the cooling plate is fixedly installed at the bottom of the mounting bracket, and the cooling plate and the cooling pipe are made of the same material.
[0011] Optionally, the mounting bracket has multiple heat exchange sleeves and corresponding connecting sleeves fixedly installed inside, and the inlets and outlets of the multiple heat exchange sleeves and connecting sleeves are connected in sequence.
[0012] Optionally, the heat exchange sleeve and the connecting sleeve have the same diameter, and the heat exchange sleeve and the connecting sleeve are wrapped with heat insulation material.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] This coal coking ammonia wastewater treatment and recycling device uses a heat exchange sleeve to send high-temperature ammonia wastewater into a connecting sleeve through a waste liquid inlet. At the same time, a heat exchange medium is sent into the heat exchange sleeve through a medium inlet. The ammonia wastewater inside the connecting sleeve flows into a connecting pipe to exchange heat with the heat exchange medium inside the heat exchange sleeve. After heat exchange, the wastewater flows out through a waste liquid outlet. The heat in the wastewater is collected through the connecting pipe for reuse, while the temperature of the wastewater is reduced to facilitate subsequent treatment.
[0015] This coal coking ammonia post-wastewater treatment and recycling device uses cooling plates to cool the wastewater after heat exchange. The wastewater is sent to the cooling pipe through the waste liquid outlet, whereby the remaining heat in the wastewater is transferred to the cooling plates, thereby cooling the wastewater to the temperature required for subsequent treatment. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a coal coking ammonia post-ammonia wastewater treatment and recycling device according to the present invention.
[0017] Figure 2 This is a schematic diagram of the cooling plate structure of a coal coking ammonia post-wastewater treatment and recycling device according to the present invention.
[0018] Figure 3 This is a schematic diagram of the heat exchange sleeve of a coal coking ammonia post-wastewater treatment and recycling device according to the present invention.
[0019] Figure 4This is a schematic diagram of the guide plate of a coal coking ammonia post-ammonia wastewater treatment and recycling device according to the present invention.
[0020] In the diagram: 1. Fixing frame; 2. Cooling plate; 3. Cooling pipe; 4. Heat exchange sleeve; 5. Connecting sleeve; 6. Waste liquid inlet; 7. Waste liquid outlet; 8. Divider plate; 9. Medium inlet; 10. Medium outlet; 11. Fixing plate; 12. Connecting pipe; 13. Flow guide plate; 14. Baffle plate; 15. Connecting channel; 16. Flow guide cover. 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. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] Please see Figures 1 to 4 This utility model provides a wastewater treatment and recycling device for coal coking ammonia production, including a fixed frame 1. A cooling plate 2 is fixedly installed at the bottom inside the fixed frame 1. A heat exchange sleeve 4 is fixedly installed inside the fixed frame 1 above the cooling plate 2. A cooling pipe 3 is inserted through the middle of the cooling plate 2. Fixed plates 11 are fixedly installed at both ends of the heat exchange sleeve 4. A connecting sleeve 5 is fixedly installed at one end of the heat exchange sleeve 4 on one side of the fixed plate 11. A guide shroud 16 is fixedly installed at the other end of the heat exchange sleeve 4 on one side of the other fixed plate 11. A waste liquid inlet 6 is integrally provided at the top of the connecting sleeve 5. A waste liquid outlet 7 is integrally provided at the bottom of the connecting sleeve 5. One end of the cooling pipe 3 is fixedly installed to the waste liquid outlet 7. A partition plate 8 is fixedly installed inside the connecting sleeve 5. The partition plate 8 is inserted through the fixed plate 11. A connecting pipe 12 is fixedly installed. A guide plate 13 is provided in the middle of the heat exchange sleeve 4. A connecting groove 15 is opened on the side of the guide plate 13 near the guide shroud 16. A medium outlet 10 is integrally provided on the top side of the heat exchange sleeve 4 near the connecting sleeve 5. A medium inlet 9 is integrally provided on the bottom side of the heat exchange sleeve 4 near the connecting sleeve 5. Through the heat exchange sleeve 4, high-temperature ammonia wastewater is sent into the connecting sleeve 5 through the waste liquid inlet 6. At the same time, the heat exchange medium is sent into the heat exchange sleeve 4 through the medium inlet 9. The ammonia wastewater inside the connecting sleeve 5 flows into the connecting pipe 12 to exchange heat with the heat exchange medium inside the heat exchange sleeve 4. The wastewater after heat exchange flows out through the waste liquid outlet 7. The heat in the wastewater is collected through the connecting pipe 12 for reuse, and the temperature of the wastewater is reduced for subsequent treatment.
[0023] Several connecting pipes 12 are evenly and parallelly arranged inside the heat exchange sleeve 4. Both ends of each connecting pipe 12 are respectively sealed and connected to two fixing plates 11. The connecting pipes 12 are symmetrically distributed on the upper and lower sides of the guide plate 13. The guide plate 13 and the partition plate 8 are located on the same horizontal plane. The thickness of the guide plate 13 is the same as its base thickness. The interior of the guide plate 13 and the partition plate 8 is filled with heat insulation material. Several turbulence-disrupting plates 14 are integrally connected to the top and bottom of the guide plate 13. The sides of the turbulence-disrupting plates 14 are in close contact with the interior of the heat exchange sleeve 4. A diffuser located below the cooling plate 2 is fixedly installed at the bottom of the fixing frame 1. The hot air fan, cooling plate 2, and cooling pipe 3 are made of the same material. Multiple heat exchange sleeves 4 and corresponding connecting sleeves 5 are fixedly installed inside the fixing frame 1. The inlets and outlets of the multiple heat exchange sleeves 4 and connecting sleeves 5 are connected in sequence. The heat exchange sleeves 4 and connecting sleeves 5 have the same diameter. The heat exchange sleeves 4 and connecting sleeves 5 are wrapped with heat insulation material. By setting up the cooling plate 2, the wastewater after heat exchange is completed is sent into the cooling pipe 3 through the waste liquid outlet 7, thereby transferring the remaining heat in the wastewater to the cooling plate 2, thereby cooling the wastewater to the temperature required for subsequent treatment.
[0024] Working principle:
[0025] High-temperature ammonia wastewater is fed into connecting sleeve 5 through waste liquid inlet 6, while heat exchange medium is fed into heat exchange sleeve 4 through medium inlet 9. The ammonia wastewater inside connecting sleeve 5 flows into connecting pipe 12 to exchange heat with the heat exchange medium inside heat exchange sleeve 4. After heat exchange, the wastewater flows out through waste liquid outlet 7. The heat in the wastewater is collected through connecting pipe 12 for reuse, while the temperature of the wastewater is reduced to facilitate subsequent treatment. After heat exchange, the wastewater is sent to cooling pipe 3 through waste liquid outlet 7, whereby the remaining heat in the wastewater is transferred to cooling plate 2 to cool the wastewater to the temperature required for subsequent treatment.
[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A coal coking ammonia post wastewater treatment and recycling device, comprising a fixing frame (1), characterized in that, The bottom of the fixed frame (1) is fixedly installed with a cooling plate (2), the inside of the fixed frame (1) is fixedly installed with a heat exchange sleeve (4) above the cooling plate (2), the middle of the cooling plate (2) is provided with a cooling pipe (3) penetrating through, both ends of the heat exchange sleeve (4) are fixedly installed with a fixed plate (11), one end of the heat exchange sleeve (4) is fixedly installed with a connecting sleeve (5) on one side of the fixed plate (11), the other end of the heat exchange sleeve (4) is fixedly installed with a flow guide cover (16) on one side of the other fixed plate (11), the top of the connecting sleeve (5) is integrally provided with a waste liquid inlet (6), the bottom of the connecting sleeve (5) is integrally provided with a waste liquid outlet (7), one end of the cooling pipe (3) is fixedly installed with the waste liquid outlet (7), the inside of the connecting sleeve (5) is fixedly installed with a partition plate (8), the fixed plate (11) is fixedly installed with a communication pipe (12) penetrating through, the middle of the inside of the heat exchange sleeve (4) is provided with a flow guide plate (13), the side of the flow guide plate (13) close to the flow guide cover (16) is provided with a communication groove (15), the top of the heat exchange sleeve (4) is integrally provided with a medium outlet (10) on the side close to the connecting sleeve (5), the bottom of the heat exchange sleeve (4) is integrally provided with a medium inlet (9) on the side close to the connecting sleeve (5).
2. The device for treating and recycling ammonia post-waste water of coal coking according to claim 1, characterized in that, A plurality of communication pipes (12) are evenly and parallel arranged in the inside of the heat exchange sleeve (4), both ends of the communication pipe (12) are respectively fixedly and sealingly installed with two fixed plates (11) penetrating through, the communication pipe (12) is symmetrically distributed on the upper and lower sides of the flow guide plate (13).
3. The device for treating and recycling ammonia post-waste water of coal coking according to claim 1, characterized in that, The flow guide plate (13) and the partition plate (8) are located on the same horizontal plane, the thickness of the flow guide plate (13) is the same as the thickness of the flow guide plate (13), the inside of the flow guide plate (13) and the partition plate (8) is filled with heat insulation material.
4. The device for treating and recycling ammonia post-waste water of coal coking according to claim 1, characterized in that, The top and the bottom of the flow guide plate (13) are integrally connected with a plurality of spoiler plates (14), the side surface of the spoiler plate (14) is in close contact with the inside of the heat exchange sleeve (4).
5. The device for treating and recycling ammonia post-waste water of coal coking according to claim 1, characterized in that, The bottom of the fixed frame (1) is fixedly installed with a cooling plate (2) below the cooling plate (2), the cooling plate (2) and the cooling pipe (3) are made of the same material.
6. The device for treating and recycling ammonia post-waste water of coal coking according to claim 1, characterized in that, The inside of the fixed frame (1) is fixedly installed with a plurality of heat exchange sleeves (4) and corresponding connecting sleeves (5), the inlets and outlets of the plurality of heat exchange sleeves (4) and connecting sleeves (5) are sequentially connected.
7. The device according to claim 1, characterized in that, The diameter of the heat exchange sleeve (4) and the connecting sleeve (5) is the same, the outside of the heat exchange sleeve (4) and the connecting sleeve (5) is wrapped with heat insulation material.