Chloride ion removal device

Abstract

The utility model relates to the technical field of gas purification, in particular to a chloride ion removal device, which comprises a bottom plate and further comprises a raw gas preheater arranged at the top of the bottom plate, a discharge pipe for discharging flue gas is arranged on the outer side of the raw gas preheater, one end of the discharge pipe is communicated with a washing tower, a washing drum is arranged at the top of the washing tower, and the other end of the washing tower is communicated with a gas outlet of the washing drum. According to the utility model, chloride ions and impurities in flue gas are washed and removed through a NaOH solution and demineralized water, so that the problem that the chloride ions easily cause environmental pollution is avoided, and the device is simple in structure, convenient to operate and high in practicability. Chloride ions and impurities in wastewater are purified and filtered through an activated carbon screen plate, purified liquid is pumped into the washing cylinder through a circulating pump and a circulating pipe to be recycled, and resource waste is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of gas purification, in particular to a chloride ion removal device. Background Art

[0002] The raw gas preheater is a device used to treat mine exhaust gas containing high concentrations of hydrogen sulfide (H2S) and carbon dioxide (CO2). Its main purpose is to reduce the concentration of these toxic gases in the mine, protect the health and safety of miners, and improve energy utilization.

[0003] The raw gas preheater needs to discharge flue gas when in use, and chloride ions will be attached to the flue gas, so a chloride ion removal device is needed. During use, the existing chloride ion removal device usually uses a washing tower to wash and remove the chloride ions in the flue gas. However, the washing tower currently only washes the flue gas with pure water, and pure water cannot react with chloride ions. The chloride ion removal efficiency is low, and the wastewater after washing cannot be recycled, resulting in a waste of resources.

[0004] Therefore, it is necessary to provide a new chloride ion removal device to solve the above technical problems. Utility Model Content

[0005] The purpose of the present invention is to provide a chloride ion removal device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solution: a chloride ion removal device, comprising a bottom plate, and further comprising:

[0007] A raw gas preheater is provided on the top of the base plate, a discharge pipe for discharging flue gas is provided on the outside of the raw gas preheater, one end of the discharge pipe is connected to a washing tower, a washing cylinder is provided on the top of the washing tower, a spray hood is provided on the outside of the washing cylinder, and multiple groups of connecting pipes are provided at the bottom of the spray hood, each of which has a nozzle for spraying and purifying chloride ions in the flue gas;

[0008] A water storage chamber for storing wastewater is provided at the bottom of the washing tower. A recovery pump for treating the wastewater is connected to the outside of the washing tower through a pipeline. A recovery pipe is provided at the water outlet of the recovery pump. One end of the recovery pipe is connected to a purification cylinder. An activated carbon mesh plate for purifying the wastewater is provided on the inner wall of the purification cylinder. A cleaning plate is provided on the top of the activated carbon mesh plate.

[0009] Preferably, a water inlet is provided on the top of the washing tub, and a water pump is provided on the top of the spray hood.

[0010] Preferably, a motor is fixedly connected to the top of the inner cavity of the purification cylinder, and a driving rod is fixedly connected to the output end of the motor.

[0011] Preferably, the bottom of the activated carbon mesh plate is fixedly connected to a mounting frame, and the inner wall of the mounting frame is slidably connected to a collection box.

[0012] Preferably, the top of the purification cylinder is connected to a circulation pump for circulating the purified wastewater through a pipeline, and a circulation pipe is provided at the water outlet end of the circulation pump.

[0013] Preferably, an exhaust pipe is provided on the outside of the washing tower, and a baffle is provided on the outside of the purification cylinder.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] The utility model adds 30% NaOH solution before fresh water enters the washing drum, dilutes the water with desalted water, starts a water pump to pump out the liquid in the washing drum, and washes and removes chloride ions and impurities in the flue gas by the NaOH solution and desalted water, thereby avoiding the problem that chloride ions easily cause environmental pollution. The chloride ions and impurities in the wastewater are purified and filtered by an activated carbon mesh plate, and the purified liquid is pumped into the washing drum for recycling through a circulation pump and a circulation pipe, thereby reducing resource waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic structural diagram of a preferred embodiment of the chloride ion removal device provided by the present invention;

[0017] Figure 2 This is a schematic diagram of the structure of the washing tower and purification cylinder in the utility model;

[0018] Figure 3 This is a schematic diagram of the structure of the washing drum in the present utility model;

[0019] Figure 4 It is a structural diagram of the purification cartridge in the utility model.

[0020] In the figure: 1. Base plate; 2. Raw gas preheater; 3. Discharge pipe; 4. Scrubber; 5. Scrubber drum; 6. Spray hood; 7. Connecting pipe; 8. Nozzle; 9. Water storage chamber; 10. Recovery pump; 11. Recovery pipe; 12. Purification drum; 13. Activated carbon mesh; 14. Water inlet; 15. Water pump; 16. Cleaning plate; 17. Motor; 18. Drive rod; 19. Mounting frame; 20. Collection box; 21. Circulation pump; 22. Circulation pipe; 23. Exhaust pipe; 24. Baffle. DETAILED DESCRIPTION

[0021] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the utility model, the following is a detailed description of the specific implementation method, structure, characteristics and effects of the present invention in combination with the accompanying drawings and preferred embodiments.

[0022] See also Figure 1-4 As shown, a chloride ion removal device includes a base plate 1, a raw gas preheater 2 is provided on the top of the base plate 1, the raw gas preheater 2 is a prior art device for increasing the temperature of raw gas, an exhaust pipe 3 for exhausting flue gas is provided on the outside of the raw gas preheater 2, one end of the exhaust pipe 3 is connected to a washing tower 4, and the flue gas is discharged into the washing tower 4 through the exhaust pipe 3 for washing, and a washing drum 5 is provided on the top of the washing tower 4. Before fresh water enters the washing drum 5, a 30% NaOH solution is added and diluted with deionized water to wash and purify the chloride ions in the flue gas, and a spray hood 6 is provided on the outside of the washing drum 5. A plurality of connecting pipes 7 are provided at the bottom of the spray hood 6, and a bottom of the connecting pipe 7 is provided. There is a nozzle 8, through which chloride ions in the flue gas can be sprayed and purified. A water storage chamber 9 is provided at the bottom of the washing tower 4, through which washing wastewater can be stored. The outside of the washing tower 4 is connected to a recovery pump 10 through a pipeline, and a recovery pipe 11 is provided at the water outlet end of the recovery pump 10. One end of the recovery pipe 11 is connected to a purification cylinder 12. An activated carbon mesh plate 13 is provided on the inner wall of the purification cylinder 12, and the chloride ions and impurities in the wastewater are purified and filtered through the activated carbon mesh plate 13. A cleaning plate 16 is provided on the top of the activated carbon mesh plate 13, and impurities on the activated carbon mesh plate 13 can be cleaned by the cleaning plate 16. An exhaust pipe 23 is provided on the outside of the washing tower 4, and a baffle 24 is provided on the outside of the purification cylinder 12.

[0023] refer to Figure 3 As shown, a water inlet 14 is provided on the top of the washing tub 5, through which NaOH solution and desalted water can be poured into the washing tub 5. A water pump 15 is provided on the top of the spray hood 6. The water inlet end of the water pump 15 is connected to the outside of the washing tub 5 through a pipe, and the water outlet end is connected to the top of the spray hood 6. Before fresh water enters the washing tub 5, 30% NaOH solution is added and diluted with desalted water. The water pump 15 is started to pump out the liquid inside the washing tub 5. The chloride ions and impurities in the flue gas are washed and removed by the NaOH solution and desalted water, thereby avoiding the problem of environmental pollution caused by chloride ions.

[0024] refer to Figure 2 and Figure 4As shown, the top of the inner cavity of the purification cylinder 12 is fixedly connected to a motor 17, the output end of the motor 17 is fixedly connected to a driving rod 18, the cleaning plate 16 is fixed to the outside of the driving rod 18, the bottom of the activated carbon mesh plate 13 is fixedly connected to a mounting bracket 19, the inner wall of the mounting bracket 19 is slidably connected to a collecting box 20, and the top of the purification cylinder 12 is connected to a circulation pump 21 for recycling the purified waste water through a pipeline, and a circulation pipe 22 is provided at the water outlet end of the circulation pump 21, and one end of the circulation pipe 22 is connected to the outside of the washing cylinder 5.

[0025] Working principle: When the device is in use, the flue gas is discharged into the washing tower 4 through the discharge pipe 3 for washing, 30% NaOH solution is added to the fresh water before entering the washing drum 5, and the water is diluted with desalted water, the water pump 15 is started to extract the liquid inside the washing drum 5, and the chloride ions and impurities in the flue gas are washed and removed by the NaOH solution and desalted water to avoid the problem of chloride ions easily causing environmental pollution, the washing wastewater can be stored through the water storage chamber 9, the wastewater in the water storage chamber 9 is pumped into the purification drum 12 through the recovery pump 10, the chloride ions and impurities in the wastewater are purified and filtered through the activated carbon mesh plate 13, and the purified liquid is pumped into the washing drum 5 through the circulation pump 21 and the circulation pipe 22 for recycling, reducing resource waste, starting the motor 17 to drive the drive rod 18 to rotate, so that the cleaning plate 16 scrapes the impurities on the activated carbon mesh plate 13, and the scraped impurities are collected through the collection box 20, and the collection box 20 can be disassembled by opening the baffle 24.

[0026] The above description is merely a preferred embodiment of the present invention and does not constitute any form of limitation to the present invention. Although the present invention has been disclosed as a preferred embodiment as above, it is not intended to limit the present invention. Any person skilled in the art can make some changes or modifications to equivalent embodiments using the technical contents disclosed above without departing from the scope of the technical solution of the present invention. However, any brief modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solution of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. A chloride ion removal device, comprising a bottom plate (1), characterized in that: Also includes: A raw gas preheater (2) is provided on the top of the base plate (1); a discharge pipe (3) for discharging flue gas is provided on the outside of the raw gas preheater (2); one end of the discharge pipe (3) is connected to a washing tower (4); a washing cylinder (5) is provided on the top of the washing tower (4); a spray hood (6) is provided on the outside of the washing cylinder (5); a plurality of connecting pipes (7) are provided at the bottom of the spray hood (6); a nozzle (8) for spraying and purifying chloride ions in the flue gas is provided at the bottom of the connecting pipe (7); A water storage chamber (9) for storing wastewater is provided at the bottom of a washing tower (4); a recovery pump (10) for treating wastewater is connected to the outside of the washing tower (4) via a pipeline; a recovery pipe (11) is provided at the water outlet of the recovery pump (10); one end of the recovery pipe (11) is connected to a purification cylinder (12); an activated carbon mesh plate (13) for purifying wastewater is provided on the inner wall of the purification cylinder (12); and a cleaning plate (16) is provided on the top of the activated carbon mesh plate (13).

2. A chloride ion removal device according to claim 1, characterized in that: The top of the washing drum (5) is provided with a water inlet (14), and the top of the spray hood (6) is provided with a water pump (15).

3. A chloride ion removal device according to claim 1, characterized in that: The top of the inner cavity of the purification cylinder (12) is fixedly connected to a motor (17), and the output end of the motor (17) is fixedly connected to a driving rod (18).

4. A chloride ion removal device according to claim 1, characterized in that: The bottom of the activated carbon mesh plate (13) is fixedly connected to a mounting frame (19), and the inner wall of the mounting frame (19) is slidably connected to a collection box (20).

5. A chloride ion removal device according to claim 1, characterized in that: The top of the purification cylinder (12) is connected to a circulation pump (21) for circulating the purified wastewater through a pipeline, and a circulation pipe (22) is provided at the water outlet end of the circulation pump (21).

6. A chloride ion removal device according to claim 1, characterized in that: An exhaust pipe (23) is provided on the outside of the washing tower (4), and a baffle (24) is provided on the outside of the purification cylinder (12).

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