A tail gas absorption treatment device for producing polyferric chloride

Abstract

The utility model discloses a tail gas absorption treatment device for producing polyiron chloride, including base, the one side of base top is installed water tank, the one side of cylinder is installed circulation mechanism, and the circulation mechanism includes the tubulature of installing in one side of cylinder, and the one side of tubulature top is provided with the entrance. The utility model discloses an entrance is provided with on the top of tubulature, when the waste gas reaction rises to the high place, and the pump body work can produce suction, and the waste gas can enter the inside of cylinder again through the outlet of tubulature bottom, and the waste gas is reacted again, lets the reaction effect be better and more thorough, when the gas flows through check valve, will rush open the valve plate, then passes through the through -hole on the valve plate and connecting plate and passes through check valve, and when waste gas reflux, the valve plate will rise, and installs ring cooperation, can block check valve, prevents the waste gas and appears the situation of reflux, to this to reach the tail gas absorption treatment device for producing polyiron chloride is convenient for the circulation treatment of tail gas's purpose.

Description

Technical Field

[0001] This utility model relates to the field of polyferric chloride production technology, and in particular to a tail gas absorption and treatment device for the production of polyferric chloride. Background Technology

[0002] Polyferric chloride (PFCC) is an inorganic polymeric coagulant mainly used in water treatment. It is an iron-based inorganic polymeric flocculant, produced by polymerizing iron and chloride ions through a chemical process. It possesses a multinucleated complex structure, enabling it to efficiently remove impurities from water. Its water purification effect is significantly superior to traditional coagulants such as aluminum sulfate. It is suitable for treating drinking water, industrial wastewater, urban sewage, and high-turbidity water sources. During PFCC production, tail gas is generated, requiring treatment. This necessitates a tail gas absorption and treatment device for PFCC production. The core device for PFCC tail gas absorption is an acid-base neutralization absorption tower, where alkaline spraying neutralizes acidic pollutants in the tail gas.

[0003] To address this, patent publication CN207755976U discloses a device for treating tail gas from ferric chloride production. The device includes an absorption tower body and an absorption tank. The absorption tank contains alkaline solution. A tail gas outlet is located at the top of the absorption tower body, connected to a connecting pipe. The other end of the connecting pipe is positioned below the alkaline solution level in the absorption tank. The tail gas generated during ferric chloride production enters the bottom of the absorption tower body through the tail gas pipe. The tail gas pipe is equipped with a vent hopper shaped like a lotus leaf, which has multiple downward-facing vent holes. The absorption tower body is equipped with a circulation assembly for the tail gas absorption liquid. In this invention, the absorption of chlorine gas by the absorption tower body and absorption tank ensures that chlorine gas is not released outdoors, thus maintaining air quality in the production space. Furthermore, the downward-facing vent hopper and the V-shaped plate in this invention promote the reaction between chlorine gas and ammonia or other alkaline solutions.

[0004] The aforementioned device for treating the tail gas from ferric chloride production proposes that the absorption of chlorine by the absorption tower body and absorption pool can ensure that chlorine is not discharged outdoors, thus guaranteeing the air quality of the production space. At the same time, the downward setting of the outlet hopper and the V-shaped plate in this invention can promote the reaction of chlorine with ammonia or other alkaline solutions. However, when treating the tail gas, the reaction treatment may not be thorough enough, requiring multiple cycles to treat the tail gas. Utility Model Content

[0005] The purpose of this invention is to provide a tail gas absorption and treatment device for the production of polyferric chloride, in order to solve the defect of existing tail gas absorption and treatment devices for the production of polyferric chloride that are difficult to recycle the tail gas.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a tail gas absorption and treatment device for the production of polyferric chloride, including a base;

[0007] A water tank is installed on one side of the top of the base, a water pump is installed on the top of the water tank, and a water pipe is installed on the top of the water pump.

[0008] A cylinder is installed at the middle position of the top of the base, and a water outlet is installed at the bottom of one end of the cylinder, and an air outlet is installed at the top of one end of the cylinder. Both the air outlet and the water outlet are equipped with a cover.

[0009] A conduit is installed on one side of the cylinder, and a circulation mechanism is installed on one side of the cylinder. The circulation mechanism includes a pipe installed on one side of the cylinder, and an inlet is provided on one side of the top end of the pipe.

[0010] In use, the filtered exhaust gas first enters the cylinder through the conduit, and the alkaline absorbent liquid is loaded into the water tank. The water pump works to draw out the alkaline absorbent liquid through the water pipe, and then sprays it out through the nozzle at the top. The sprayed alkaline absorbent liquid can react and mix with the exhaust gas. The reacted exhaust gas can be discharged through the gas outlet at the top, and the excess alkaline absorbent liquid can be discharged through the water outlet at the bottom.

[0011] Furthermore, a stirring mechanism is installed inside the cylinder. The stirring mechanism includes a servo motor installed at the bottom of the cylinder, and a stirring shaft is installed at the top of the servo motor. Stirring blades are installed on the outside of the stirring shaft. The stirring mechanism can stir the inside of the cylinder.

[0012] Furthermore, a scraper is installed on the outer side of the stirring blade, and the scraper is symmetrically distributed about the central axis of the stirring shaft. The scraper can clean the inner wall of the cylinder.

[0013] Furthermore, a filter structure is installed on one side of the duct, and the filter structure includes a filter box installed on one side of the duct. A sealing gasket is provided at the top of the filter box. An inlet is installed on one side of the filter box, and a flange is installed on one side of the inlet. A cover plate is installed at the top of the filter box. A magnet is installed on one side of the bottom end of the cover plate, and a screen is installed on the other side of the bottom end of the cover plate. A handle is installed at the top of the cover plate. The filter structure can filter exhaust gas.

[0014] Furthermore, the top of the filter box is provided with a slot, and the bottom of the cover plate is provided with a locking block. The filter box and the cover plate form a locking structure, which facilitates disassembly.

[0015] Furthermore, a pump body is installed on one side of the inlet, an outlet is provided at the bottom end of the pipe body, a one-way valve is installed on the outside of the pipe body, an installation ring is installed at the top of the inside of the one-way valve, a connecting plate is installed at the bottom of the inside of the one-way valve, a spring is installed at the top of the connecting plate, and a valve plate is installed at the top of the spring, so that the waste gas can be circulated and treated by the circulation mechanism.

[0016] Furthermore, both the valve plate and the connecting plate have through holes on their outer sides, which are arranged in a ring shape, allowing the valve plate to seal the one-way valve.

[0017] Furthermore, the spring is helical in shape, and the spring and the valve plate form an elastic connection, giving the spring elasticity.

[0018] Furthermore, a nozzle is installed at the bottom end of the water pipe, and the nozzles are arranged at equal intervals at the bottom end of the water pipe, and the nozzles can spray out alkaline absorbent liquid.

[0019] The tail gas absorption and treatment device for the production of polyferric chloride provided by this utility model has the following advantages: during use, the inside of the cylinder can be stirred by the stirring mechanism to allow the alkaline absorbent liquid to react better with the waste gas; the waste gas can be circulated by the circulation mechanism; and the waste gas can be simply filtered by the filtration structure.

[0020] By setting an inlet at the top of the pipe, when the waste gas rises to a high position, the pump works to generate suction. The waste gas can then re-enter the cylinder through the outlet at the bottom of the pipe for a second reaction, making the reaction more effective and thorough. When the gas flows through the one-way valve, it opens the valve plate and then passes through the through holes on the valve plate and connecting plate. When the waste gas flows back, the valve plate rises and, in conjunction with the mounting ring, blocks the one-way valve, preventing the waste gas from flowing back. This achieves the purpose of facilitating the recycling of waste gas in the tail gas absorption and treatment device used for the production of polyferric chloride.

[0021] By installing a servo motor at the bottom of the cylinder, the servo motor can drive the stirring shaft at the top to rotate. The rotation of the stirring shaft can drive the stirring blades to rotate, which can stir the inside of the cylinder, allowing the alkaline absorbent liquid and waste gas to react and mix better. At the same time, the rotation of the stirring blades can drive the scraper to rotate, which can clean the inner wall of the outer shell. This achieves the purpose of enhancing the reaction effect of the tail gas absorption and treatment device used in the production of polyferric chloride. Attached Figure Description

[0022] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0023] Figure 2 This is a three-dimensional cross-sectional structural diagram of the present invention;

[0024] Figure 3 This is a partial three-dimensional structural diagram of the filter structure of this utility model;

[0025] Figure 4 This is a partial three-dimensional structural diagram of the circulation mechanism of this utility model;

[0026] Figure 5 This is a partial three-dimensional structural diagram of the stirring mechanism of this utility model.

[0027] The following are the annotations in the diagram: 1. Base; 2. Water tank; 3. Cylinder; 4. Outlet; 5. Filter structure; 501. Filter box; 502. Inlet; 503. Flange; 504. Magnet; 505. Cover plate; 506. Handle; 507. Screen; 508. Sealing gasket; 6. Guide tube; 7. Circulation mechanism; 701. Pipe body; 702. Pump body; 703. Inlet; 704. Outlet; 705. Check valve; 706. Mounting ring; 707. Valve plate; 708. Spring; 709. Through hole; 710. Connecting plate; 8. Air outlet; 9. Cover; 10. Water pipe; 11. Water pump; 12. Nozzle; 13. Stirring mechanism; 1301. Servo motor; 1302. Stirring shaft; 1303. Stirring blade; 1304. Scraper. Detailed Implementation

[0028] 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.

[0029] Please see Figures 1-5 One embodiment of this utility model is a tail gas absorption and treatment device for the production of polyferric chloride, which includes a base 1.

[0030] A water tank 2 is installed on one side of the top of the base 1. A water pump 11 is installed on the top of the water tank 2. A water pipe 10 is installed on the top of the water pump 11. A nozzle 12 is installed at the bottom of the water pipe 10. The nozzles 12 are arranged at equal intervals at the bottom of the water pipe 10.

[0031] A cylinder 3 is installed at the middle position of the top of the base 1. A stirring mechanism 13 is installed inside the cylinder 3. The stirring mechanism 13 includes a servo motor 1301 installed at the bottom of the cylinder 3. A stirring shaft 1302 is installed at the top of the servo motor 1301. A stirring blade 1303 is installed on the outside of the stirring shaft 1302. A scraper 1304 is installed on the outside of the stirring blade 1303. The scraper 1304 is symmetrically distributed about the central axis of the stirring shaft 1302.

[0032] See attached document Figure 2 and attached Figure 5 As shown, the servo motor 1301 can drive the top stirring shaft 1302 to rotate. The rotation of the stirring shaft 1302 can drive the stirring blade 1303 to rotate. The rotation of the stirring blade 1303 can stir the inside of the cylinder 3, allowing the alkaline absorption liquid and waste gas to react and mix better. At the same time, the rotation of the stirring blade 1303 drives the scraper 1304 to rotate, and the scraper 1304 can clean the inner wall of the outer shell.

[0033] A water outlet 4 is installed at the bottom of one end of the cylinder 3, and an air outlet 8 is installed at the top of one end of the cylinder 3. Both the air outlet 8 and the water outlet 4 are equipped with a cover 9.

[0034] A guide tube 6 is installed on one side of the cylinder 3, and a filter structure 5 is installed on one side of the guide tube 6. The filter structure 5 includes a filter box 501 installed on one side of the guide tube 6. A slot is provided at the top of the filter box 501, and a locking block is provided at the bottom of the cover plate 505. The filter box 501 and the cover plate 505 form a locking structure.

[0035] A sealing gasket 508 is provided at the top of the filter box 501. An inlet 502 is installed on one side of the filter box 501, and a flange 503 is installed on one side of the inlet 502. A cover plate 505 is installed at the top of the filter box 501. A magnet 504 is installed on one side of the bottom of the cover plate 505. A screen 507 is installed on the other side of the bottom of the cover plate 505. A handle 506 is installed at the top of the cover plate 505.

[0036] See attached document Figure 1-3As shown, the cover plate 505 and the filter box 501 form a locking structure. When the screen 507 and magnet 504 need to be replaced, the handle 506 can be grasped to open the cover plate 505 and pull out the screen 507 and magnet 504 for replacement. The feed port 502 can be connected to other pipes through the flange 503. Exhaust gas can be discharged into the filter box 501 through the feed port 502. The exhaust gas will first pass through the magnet 504 to filter out the metal scrap inside the exhaust gas, and then pass through the screen 507 to filter out the metal scrap inside the exhaust gas. Impurities in the part are filtered, and the filtered exhaust gas can enter the inside of the cylinder 3 through the conduit 6. The alkaline absorbent can be loaded into the water tank 2. The water pump 11 works to draw out the alkaline absorbent through the water pipe 10 and then spray it out through the nozzle 12 at the top. The sprayed alkaline absorbent can react and mix with the exhaust gas. The reacted exhaust gas can be discharged through the air outlet 8 at the top. Excess alkaline absorbent can be discharged through the water outlet 4 at the bottom. The cover 9 can seal the water outlet 4 and the air outlet 8.

[0037] A circulation mechanism 7 is installed on one side of the cylinder 3, and the circulation mechanism 7 includes a pipe 701 installed on one side of the cylinder 3. An inlet 703 is provided on one side of the top end of the pipe 701. A pump body 702 is installed on one side of the inlet 703. An outlet 704 is provided at the bottom end of the pipe 701. A one-way valve 705 is installed on the outside of the pipe 701. An installation ring 706 is installed at the top end inside the one-way valve 705. A connecting plate 710 is installed at the bottom end inside the one-way valve 705. A spring 708 is installed at the top end of the connecting plate 710. The spring 708 is spiral in shape. The spring 708 and the valve plate 707 form an elastic connection.

[0038] A valve plate 707 is installed at the top of the spring 708. Both the valve plate 707 and the connecting plate 710 have through holes 709 on their outer sides, which are arranged in a ring.

[0039] See attached document Figure 1-2 and attached Figure 4 As shown, when the exhaust gas rises to a high position, the pump body 702 can generate suction, which can draw the exhaust gas that has risen to a high point into the pipe body 701 through the inlet 703. The exhaust gas can re-enter the cylinder 3 through the outlet 704 at the bottom of the pipe body 701 to react with the exhaust gas again, making the reaction effect better and more thorough. The spring 708 between the valve plate 707 and the connecting plate 710 is elastic. At the same time, the one-way valve 705 can prevent the exhaust gas from flowing back. When the gas flows through the one-way valve 705, it will open the valve plate 707 and then pass through the through hole 709 on the valve plate 707 and the connecting plate 710 through the one-way valve 705. When the exhaust gas flows back, the valve plate 707 will rise and cooperate with the mounting ring 706 to block the one-way valve 705 and prevent the exhaust gas from flowing back.

[0040] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A tail gas absorption and treatment device for the production of polyferric chloride, comprising a base (1); Its features are: A water tank (2) is installed on one side of the top of the base (1), a water pump (11) is installed on the top of the water tank (2), and a water pipe (10) is installed on the top of the water pump (11). A cylinder (3) is installed at the middle position of the top of the base (1), and a water outlet (4) is installed at the bottom of one end of the cylinder (3). An air outlet (8) is installed at the top of one end of the cylinder (3). A cover (9) is installed at one end of both the air outlet (8) and the water outlet (4). A conduit (6) is installed on one side of the cylinder (3), and a circulation mechanism (7) is installed on one side of the cylinder (3). The circulation mechanism (7) includes a pipe (701) installed on one side of the cylinder (3), and an inlet (703) is provided on one side of the top end of the pipe (701).

2. The tail gas absorption and treatment device for the production of polyferric chloride according to claim 1, characterized in that: The cylinder (3) is equipped with a stirring mechanism (13). The stirring mechanism (13) includes a servo motor (1301) installed at the bottom of the cylinder (3), and a stirring shaft (1302) is installed at the top of the servo motor (1301). A stirring blade (1303) is installed on the outside of the stirring shaft (1302).

3. The tail gas absorption and treatment device for the production of polyferric chloride according to claim 2, characterized in that: A scraper (1304) is installed on the outer side of the stirring blade (1303), and the scraper (1304) is symmetrically distributed about the central axis of the stirring shaft (1302).

4. The tail gas absorption and treatment device for the production of polyferric chloride according to claim 1, characterized in that: A filter structure (5) is installed on one side of the conduit (6), and the filter structure (5) includes a filter box (501) installed on one side of the conduit (6). A sealing gasket (508) is provided at the top of the filter box (501). An inlet (502) is installed on one side of the filter box (501), and a flange (503) is installed on one side of the inlet (502). A cover plate (505) is installed at the top of the filter box (501). A magnet (504) is installed on one side of the bottom of the cover plate (505), and a screen (507) is installed on the other side of the bottom of the cover plate (505). A handle (506) is installed at the top of the cover plate (505).

5. A tail gas absorption and treatment device for the production of polyferric chloride according to claim 4, characterized in that: The filter box (501) has a slot at its top and a locking block at its bottom, forming a locking structure between the filter box (501) and the cover plate (505).

6. The tail gas absorption and treatment device for the production of polyferric chloride according to claim 1, characterized in that: A pump body (702) is installed on one side of the inlet (703), an outlet (704) is provided at the bottom end of the pipe body (701), a one-way valve (705) is installed on the outside of the pipe body (701), an installation ring (706) is installed at the top end of the inside of the one-way valve (705), a connecting plate (710) is installed at the bottom end of the inside of the one-way valve (705), a spring (708) is installed at the top end of the connecting plate (710), and a valve plate (707) is installed at the top end of the spring (708).

7. A tail gas absorption and treatment device for the production of polyferric chloride according to claim 6, characterized in that: Both the valve plate (707) and the connecting plate (710) are provided with through holes (709) on their outer sides, and the through holes (709) are distributed in a ring.

8. A tail gas absorption and treatment device for the production of polyferric chloride according to claim 6, characterized in that: The spring (708) is helical in shape, and the spring (708) and the valve plate (707) form an elastic connection.

9. A tail gas absorption and treatment device for the production of polyferric chloride according to claim 1, characterized in that: The water pipe (10) is equipped with a nozzle (12) at the bottom end, and the nozzles (12) are arranged at equal intervals at the bottom end of the water pipe (10).

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