System for recovering and reducing magnesium-discharged flue gas

Abstract

The utility model discloses a system for recovering and reducing magnesium-discharged flue gas, which comprises three treatment cylinders, the three treatment cylinders are arranged in a straight line, spray heads symmetrically penetrate through the upper ends of the inner walls of the three treatment cylinders, the lower ends of the treatment cylinders are fixedly communicated with drain pipes, the lower ends of the drain pipes are in threaded connection with filter cylinders, and the filter cylinders are in threaded connection with the filter cylinders. The flue gas is subjected to spraying treatment through the spraying head, magnesium chloride flue gas is absorbed by water, magnesium chloride has certain solubility in water, part of magnesium chloride can be dissolved in water to form a solution, meanwhile, the stirring structure is arranged to promote sufficient contact between magnesium chloride and water, part of residual flue gas enters the next treatment barrel through the connecting pipe again, and the treatment efficiency is improved. The flue gas is effectively treated until the flue gas is effectively treated by the three treatment cylinders, a multi-stage absorption mode is adopted, and the plurality of treatment cylinders connected in series are arranged, so that the absorption efficiency of magnesium chloride is improved, and the flue gas treatment effect is ensured.

Description

Technical Field

[0001] This utility model relates to the field of flue gas treatment technology, specifically to a system for recovering and reducing magnesium exhaust flue gas. Background Technology

[0002] The reduction of magnesium chloride by zirconium tetrachloride generates a large amount of flue gas. The purpose of installing an absorption scrubbing system is to solve the flue gas emission problem. The absorption scrubbing system uses water to absorb the magnesium chloride flue gas. Magnesium chloride has a certain solubility in water, and some magnesium chloride will dissolve in the water to form a solution. The existing absorption scrubbing system only has a single treatment effect, and the residual untreated flue gas will cause harm to the environment, making it impractical. Utility Model Content

[0003] The purpose of this invention is to provide a magnesium recovery and reduction flue gas system to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a magnesium recovery and reduction flue gas system, comprising three processing cylinders arranged in a straight line, with adjacent processing cylinders connected by a connecting pipe, an inlet pipe fixedly connected to the outer end of one processing cylinder, and an outlet pipe fixedly connected to the outer end of the other processing cylinder, a stirring structure being installed through the inner wall of each of the three processing cylinders, spray heads symmetrically penetrating the upper end of the inner wall of each of the three processing cylinders, a drain pipe fixedly connected to the lower end of each processing cylinder, and a filter cylinder screwed to the lower end of the drain pipe.

[0005] Preferably, the stirring structure includes a motor, which is fixedly mounted on the upper end of the processing cylinder. The motor shaft passes through the processing cylinder and is fixedly connected to a rotating rod. The lower end of the rotating rod is rotatably connected to the inner wall of the processing cylinder. Four stirring blades are symmetrically mounted on the outer wall of the rotating rod.

[0006] Preferably, it also includes a cleaning structure, which is fixedly assembled to the outer wall of the rotating rod;

[0007] The cleaning structure includes a sleeve plate, which is fixedly mounted on the outer wall of the rotating rod. A scraper is fixedly mounted on one end of the sleeve plate, and a brush is fixedly mounted on the other end of the sleeve plate. Both the scraper and the brush are in contact with the bottom surface of the inner cavity of the treatment cylinder.

[0008] Preferably, a transparent plate is fitted into one side of the inner wall of the processing cylinder.

[0009] Compared with the prior art, the beneficial effects of this utility model are as follows: the inlet pipe is connected to the pump body for flue gas discharge, which facilitates the collection of a large amount of flue gas generated during the reduction of magnesium chloride by zirconium tetrachloride. The flue gas is collected into the first treatment cylinder and sprayed through a spray head. Water is used to absorb the magnesium chloride flue gas. Magnesium chloride has a certain solubility in water, and some magnesium chloride will dissolve in the water to form a solution. At the same time, a stirring structure is set to promote full contact between magnesium chloride and water. Some residual flue gas enters the next treatment cylinder through the connecting pipe again, and the flue gas is also effectively treated. This continues until all three treatment cylinders have effectively treated the flue gas. The multi-stage absorption method, with multiple treatment cylinders connected in series, improves the absorption efficiency of magnesium chloride and ensures the effect of flue gas treatment. The treated flue gas is discharged through the exhaust pipe, and the water after the flue gas treatment is discharged through the drain pipe. The water is filtered through a filter cylinder to remove impurities. The filter cylinder is screwed to the drain pipe for easy disassembly and cleaning. It is convenient to use and highly practical. Attached Figure Description

[0010] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0011] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0012] Figure 3 This is a partial structural perspective view of the present invention;

[0013] Figure 4 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0014] In the diagram: 1-Inlet pipe, 2-Processing cylinder, 3-Stirring structure, 31-Motor, 32-Rotor, 33-Stirring blade, 4-Spray head, 5-Connecting pipe, 6-Exhaust pipe, 7-Cleaning structure, 71-Sheet plate, 72-Scraper, 73-Brush, 8-Drain pipe, 9-Filter cylinder, 10-Transparent plate. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-4This utility model provides a magnesium recovery and reduction flue gas recovery system, including three processing cylinders 2 arranged in a straight line. Adjacent processing cylinders 2 are connected by a connecting pipe 5. The outer end of one processing cylinder 2 is fixedly connected to a flue gas inlet pipe 1, and the outer end of the other processing cylinder 2 is fixedly connected to a flue gas outlet pipe 6. The inner walls of all three processing cylinders 2 are equipped with a stirring structure 3. The upper ends of the inner walls of all three processing cylinders 2 are symmetrically connected with spray heads 4. The lower ends of the processing cylinders 2 are fixedly connected to a drain pipe 8, and the lower end of the drain pipe 8 is screwed with a filter cylinder 9.

[0017] The inlet pipe 1 is connected to the pump body for flue gas discharge, facilitating the collection of the large amount of flue gas generated during the reduction of magnesium chloride by zirconium tetrachloride. The flue gas is collected into the first treatment cylinder 2 and sprayed through the spray head 4. Water is used to absorb the magnesium chloride flue gas. Magnesium chloride has a certain solubility in water, and some magnesium chloride will dissolve in the water to form a solution. At the same time, a stirring structure 3 is set to promote full contact between magnesium chloride and water. Some residual flue gas enters the next treatment cylinder 2 through the connecting pipe 5 again, and the flue gas is effectively treated in the same way. This process continues until all three treatment cylinders 2 have effectively treated the flue gas. A multi-stage absorption method is adopted, with multiple treatment cylinders 2 connected in series to improve the absorption efficiency of magnesium chloride and ensure the effect of flue gas treatment. The treated flue gas is discharged through the exhaust pipe 6, and the water after the flue gas treatment is discharged through the drain pipe 8. The water is filtered through the filter cylinder 9 to remove impurities. The filter cylinder 9 is screwed to the drain pipe 8, which is convenient to disassemble and clean. It is easy to use and highly practical.

[0018] The stirring structure 3 includes a motor 31, which is fixedly mounted on the upper end of the processing cylinder 2. The motor shaft of the motor 31 passes through the processing cylinder 2 and is fixedly connected to a rotating rod 32. The lower end of the rotating rod 32 is rotatably connected to the inner wall of the processing cylinder 2. Four stirring blades 33 are symmetrically mounted on the outer wall of the rotating rod 32.

[0019] When the stirring structure 3 is needed, first turn on the motor 31, and drive the rotating rod 32 to rotate through the motor shaft. At the same time, drive the stirring blade 33 to stir the water mixed with flue gas to promote full contact between magnesium chloride and water.

[0020] It also includes a cleaning structure 7, which is fixedly assembled to the outer wall of the rotating rod 32;

[0021] The cleaning structure 7 includes a sleeve 71, which is fixedly mounted on the outer wall of the rotating rod 32. A scraper 72 is fixedly mounted on one end of the sleeve 71, and a brush 73 is fixedly mounted on the other end of the sleeve 71. Both the scraper 72 and the brush 73 are in contact with the bottom surface of the inner cavity of the treatment cylinder 2.

[0022] During the absorption and rinsing process, the reaction between water and the components in the flue gas may generate solid precipitates. When absorbing magnesium chloride, magnesium hydroxide precipitate may be generated. If these precipitates are not discharged in time, they will cause blockage at the drain pipe 8. At this time, as the stirring structure 3 works, the rotating rod 32 continues to rotate, which will drive the sleeve plate 71 to rotate at the same time. At this time, the sleeve plate 71 can drive the scrapers 72 and brushes 73 on both sides to rotate at the same time. The scrapers 72 can scrape off the impurities at the drain pipe position and effectively disperse them through the brushes to form smaller particles, which can be discharged through the drain pipe 8.

[0023] A transparent plate 10 is fitted into one side of the inner wall of the processing cylinder 2.

[0024] The transparent plate 10 allows observation of the liquid level.

[0025] 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 magnesium recovery and reduction flue gas system, characterized in that: It includes three processing cylinders (2), which are arranged in a line. Adjacent processing cylinders (2) are connected by a connecting pipe (5). The outer end of one processing cylinder (2) is fixedly connected to a smoke inlet pipe (1), and the outer end of the other processing cylinder (2) is fixedly connected to a smoke exhaust pipe (6). The inner walls of the three processing cylinders (2) are all fitted with a stirring structure (3). The upper ends of the inner walls of the three processing cylinders (2) are symmetrically connected with spray heads (4). The lower end of the processing cylinder (2) is fixedly connected to a drain pipe (8), and the lower end of the drain pipe (8) is screwed with a filter cylinder (9).

2. The magnesium recovery and reduction flue gas system according to claim 1, characterized in that: The stirring structure (3) includes a motor (31), which is fixedly mounted on the upper end of the processing cylinder (2). The motor shaft of the motor (31) passes through the processing cylinder (2) and is fixedly connected to a rotating rod (32). The lower end of the rotating rod (32) is rotatably connected to the inner wall of the processing cylinder (2). Four stirring blades (33) are symmetrically mounted on the outer wall of the rotating rod (32).

3. The magnesium recovery and reduction flue gas system according to claim 2, characterized in that: It also includes a cleaning structure (7), which is fixedly assembled to the outer wall of the rotating rod (32); The cleaning structure (7) includes a sleeve (71), which is fixedly mounted on the outer wall of the rotating rod (32). A scraper (72) is fixedly mounted on one end of the sleeve (71), and a brush (73) is fixedly mounted on the other end of the sleeve (71). Both the scraper (72) and the brush (73) are in contact with the bottom surface of the inner cavity of the processing cylinder (2).

4. The magnesium recovery and reduction flue gas system according to claim 1, characterized in that: A transparent plate (10) is fitted into one side of the inner wall of the processing cylinder (2).

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