A reaction kettle for removing impurities from lead-containing ferrous chloride waste acid

Abstract

The utility model relates to a reaction kettle for containing lead ferrous chloride waste acid impurity removal belongs to chemical equipment technical field. The reaction kettle aims at the problem that the effect of existing cleaning lead slag is poor and the artificial labor quantity is big, provides an improved scheme. The reaction kettle includes kettle body, feed end and blowdown end, the kettle body top is equipped with motor -driven stirring rod, is equipped with multiple groups of stirring blade auxiliary mixing outside wall. The sleeve is fixed with the scraping strip through the connecting strip. The blowdown end is provided with the blockage, and the sleeve bottom end is rotatably connected with the blockage. The scraping strip and kettle wall keep gap with rotation auxiliary reaction when mixing, and the blockage is moved down to open the blowdown end when cleaning, drives the scraping strip to descend to the kettle bottom and rotates to scrape off the lead slag. It is driven to move down through the external thread rod mechanism. The scheme makes the scraping strip avoid wearing the kettle wall in the stirring, and the sediment is scraped off automatically when discharging residue, reduces manual intervention, and improves the impurity removal efficiency.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, and in particular to a reaction vessel for removing impurities from lead-containing ferrous chloride waste acid. Background Technology

[0002] In the process of removing impurities from lead-containing ferrous chloride waste acid, the waste acid mainly contains impurities such as ferrous chloride, hydrochloric acid, and heavy metal lead. A common treatment method is to mix the waste acid with a precipitant in a reaction vessel to achieve solid-liquid separation. Some manufacturers further utilize smaller reaction vessels to accommodate variations in waste acid concentration and unstable production volumes. However, after the reaction, heavy metal lead easily precipitates or scales on the inner wall of the vessel. Existing cleaning methods largely rely on manual operation; increasing the number of rinses or changing the type of agitator has limited effect, resulting in high labor intensity and low efficiency. Utility Model Content

[0003] The purpose of this invention is to address the shortcomings of existing technologies, such as the generally limited effectiveness of manual cleaning, increased rinsing frequency, and improved impurity removal methods for lead-containing ferrous chloride waste acid, and to propose a reaction vessel for removing impurities from such waste acid.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A reactor for removing impurities from lead-containing ferrous chloride waste acid includes a reactor body, a feed end located at the top of the reactor body, and a drain end located at the bottom of the reactor body.

[0006] The stirring rod and multiple sets of stirring blades are arranged on the outer wall of the stirring rod. Each set of stirring blades has multiple blades arranged in a ring at equal intervals. A motor is fixedly installed on the top of the vessel. One end of the stirring rod rotates through the vessel and is fixedly connected to the output shaft of the motor.

[0007] Multiple scraper blades are provided, and a sleeve is slidably fitted on the bottom end of the outer wall of the stirring rod. Multiple connecting strips are fixedly provided on the outer wall of the sleeve, and the other end of the connecting strips is fixedly connected to the adjacent scraper blade.

[0008] A sealing plug is slidably disposed at the sewage discharge end to seal the sewage discharge end, and the bottom end of the sleeve is rotatably connected to the top of the sealing plug;

[0009] During the mixing process, the motor drives the stirring rod and stirring blade to rotate, and the scraper rotates with the sleeve and maintains a gap with the inner wall of the vessel to assist in mixing. During the cleaning process, the sealing plug moves down to open the drain end, and at the same time, it drives the scraper to move down to the bottom of the vessel. The motor drives the scraper to rotate to scrape off the precipitated lead slag.

[0010] In one possible design, a slider and a groove are provided between the outer wall of the sealing plug and the inner wall of the drain end to achieve a sliding fit.

[0011] In one possible design, the drain end is narrower at the top and wider at the bottom, while the sealing plug is wider at the top and narrower at the bottom.

[0012] In one possible design, the outer wall of the sealing plug is provided with a sealing ring.

[0013] In one possible design, a mounting base is fixedly provided on the outer wall of the vessel body, a threaded rod is rotatably provided on the top of the mounting base, a through hole is provided on the outer wall of the vessel body, a connecting frame is fixedly provided on the outer wall of the sealing plug, and the connecting frame extends to the outside of the vessel body through the through hole, and the connecting frame is threaded onto the outer wall of the threaded rod.

[0014] In one possible design, a protective ring is fixedly fitted onto the outer wall of the vessel body, and the protective ring is fixedly fitted onto the outer wall of the connecting frame.

[0015] In one possible design, the blades of the stirring blade are at an angle to the axis of the stirring rod.

[0016] In this application, during actual use, the filtered waste acid, along with the corresponding precipitant and auxiliary agents, are added to the interior of the reactor through the feed end. Then, a drive motor rotates the stirring rod and the stirring blades on the outer wall to initiate a mixing reaction, thereby separating impurities such as ferrous chloride, hydrochloric acid, and heavy metal lead from the waste acid. During mixing, a gap is maintained between the scraper and the inner wall of the reactor. The rotation of the stirring rod, via the sleeve and connecting strip, drives the scraper to rotate, aiding in mixing. After the reaction is complete and sedimentation occurs, the purified acid is extracted. At this point, the threaded rod is rotated and the drain valve is opened. The threaded rod drives the connecting frame to move the sealing plug downwards to open the drain end. Simultaneously, the sleeve and connecting strip move the scraper down to the bottom of the reactor. The drive motor rotates the scraper to scrape off the precipitated lead slag, and this is further aided by rinsing with a spray pipe above, thus achieving a cleaning effect.

[0017] In this utility model, the reaction vessel for removing impurities from lead-containing ferrous chloride waste acid can achieve rapid and uniform mixing of waste acid and precipitant by tilting the stirring blades, and the scraper maintains a gap with the vessel wall when not in operation.

[0018] In this utility model, the reaction vessel for removing impurities from lead-containing ferrous chloride waste acid can be adjusted by a scraper that can move downwards when it is necessary to clean the lead slag that has settled at the bottom, thereby achieving the scraping effect of the lead slag and thus helping to clean manually and reducing the amount of manual labor.

[0019] In this invention, during daily mixing and stirring, the scraper can rotate synchronously as a stirring blade, thereby increasing the mixing efficiency and avoiding contact with the vessel wall, reducing wear. When cleaning, it can be adjusted to help scrape off sediment such as lead slag from the bottom wall, reducing manual labor. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the main structure of a reaction vessel for removing impurities from lead-containing ferrous chloride waste acid, as proposed in this utility model.

[0021] Figure 2 This is a cross-sectional structural diagram of a reaction vessel for removing impurities from lead-containing ferrous chloride waste acid, as proposed in this utility model.

[0022] Figure 3 This utility model Figure 2 Enlarged view of the structure of part A in the middle.

[0023] Figure 4 This utility model Figure 2 Enlarged view of the structure of section B.

[0024] In the diagram: 1. Kettle body; 2. Feed end; 3. Motor; 4. Stirring rod; 5. Stirring blade; 6. Connecting strip; 7. Scraper; 8. Sealing plug; 9. Sleeve; 10. Sealing ring; 11. Connecting frame; 12. Threaded rod; 13. Protective ring; 14. Mounting base; 15. Through hole. Detailed Implementation

[0025] 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.

[0026] In one embodiment: Reference Figure 1-2 A reaction vessel includes: a vessel body 1, with a feed end 2 at the top and a drain end at the bottom.

[0027] A motor 3 is bolted to the top of the vessel body 1. The output shaft of the motor 3 is connected to the top of the vertically arranged stirring rod 4 via a coupling. Multiple sets of stirring blades 5 are welded to the outer wall of the stirring rod 4. Each set of stirring blades 5 consists of multiple blades evenly distributed in a ring. The blades are at a 45° angle to the axis of the stirring rod 4 to improve mixing efficiency.

[0028] refer to Figure 2-3A sleeve 9 is slidably fitted onto the bottom end of the stirring rod 4. Multiple connecting strips 6 are welded to the outer wall of the sleeve 9, and scraper strips 7 are welded to the ends of the connecting strips 6. The working surface of the sleeve 6 maintains a gap with the inner wall of the vessel body 1. The drain end adopts a structure that is narrow at the top and wide at the bottom. A sliding groove that matches the outer wall of the sealing plug 8 is embedded inside. The sealing plug 8 has a structure that is wide at the top and narrow at the bottom. A sealing ring 10 is embedded in its outer wall. A sliding seal connection is formed between the sliding block and the sliding groove on the inner wall of the drain end.

[0029] refer to Figure 4 A mounting base 14 is welded to the outer wall of the vessel body 1, and a threaded rod 12 is rotatably mounted on the top of the mounting base 14 via a bearing. A strip-shaped through hole 15 is opened on the side wall of the vessel body 1, and the connecting bracket 11 welded to the outer wall of the sealing plug 8 passes through the through hole 15 and forms a threaded engagement with the threaded rod 12. A retaining ring 13 is fitted on the outer wall of the connecting bracket 11, and the retaining ring 13 is slidably connected to the outer wall of the vessel body 1 by bolts, which is used to seal the through hole 15.

[0030] In actual operation, the operator injects pre-filtered waste acid and precipitant into the vessel 1 through the feed end 2, starts the motor 3 to drive the stirring rod 4 to rotate, and the stirring blades 5 to fully mix and react the materials. After the reaction is complete, the mixture is allowed to settle, and the clear liquid at the top is pumped into the storage tank through a pipeline. When it is necessary to discharge the lead slag at the bottom, the threaded rod 12 is driven to rotate, and the connecting frame 11 drives the sealing plug 8 to move vertically downward along the chute, gradually opening the drain end. During this process, the sleeve 9 moves downward with the sealing plug 8, causing the scraper 7 to descend to the bottom of the vessel 1. The motor 3 is started again, and the scraper 7 rotates at low speed, working in conjunction with the external spray device to wash away the lead slag adhering to the inner wall.

[0031] This application can be used in the field of chemical equipment, or in other fields applicable to this application.

[0032] In another embodiment: Reference Figure 1 A reaction vessel for removing impurities from lead-containing ferrous chloride waste acid is applied in the field of chemical equipment. The bottom of the vessel body 1 is equipped with corresponding valves and sewage pipes.

[0033] A handwheel or drive motor is installed at the end of the threaded rod 12.

[0034] However, as is well known to those skilled in the art, the working principle and wiring method of motor 3 are commonplace and are all conventional methods or common knowledge. They will not be elaborated here. Those skilled in the art can make any selections according to their needs or convenience.

[0035] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0036] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A reactor for the purification of waste ferrous chloride acid containing lead, characterized in that, include: The vessel body (1), the feed end (2) located at the top of the vessel body (1), and the drain end located at the bottom of the vessel body (1); The stirring rod (4) and multiple sets of stirring blades (5) are provided on the outer wall of the stirring rod (4). Each set of stirring blades (5) is provided with multiple blades and arranged in a ring at equal intervals. A motor (3) is fixedly provided on the top of the vessel body (1). One end of the stirring rod (4) rotates through the vessel body (1) and is fixedly connected to the output shaft of the motor (3). Multiple scraper blades (7), a sleeve (9) is slidably sleeved on the bottom end of the outer wall of the stirring rod (4), and multiple connecting strips (6) are fixedly installed on the outer wall of the sleeve (9). The other end of the connecting strip (6) is fixedly connected to the adjacent scraper blade (7). A sealing plug (8) is slidably disposed at the sewage discharge end to seal the sewage discharge end, and the bottom end of the sleeve (9) is rotatably connected to the top of the sealing plug (8); During the mixing process, the motor (3) drives the stirring rod (4) and stirring blade (5) to rotate, and the scraper (7) rotates with the sleeve (9) and maintains a gap with the inner wall of the vessel (1) to assist in mixing. During the cleaning process, the sealing plug (8) moves down to open the drain end, and at the same time drives the scraper (7) to move down to the bottom of the vessel (1). The motor (3) drives the scraper (7) to rotate to scrape off the precipitated lead slag.

2. The reactor for removing impurities from lead-containing ferrous chloride waste acid according to claim 1, characterized in that, A slider and a groove are provided between the outer wall of the sealing plug (8) and the inner wall of the sewage discharge end to achieve sliding fit.

3. The reactor for removing impurities from lead-containing ferrous chloride waste acid according to claim 2, characterized in that, The drain end is narrow at the top and wide at the bottom, and the sealing plug (8) is wide at the top and narrow at the bottom.

4. A reaction vessel for removing impurities from lead-containing ferrous chloride waste acid according to any one of claims 1 to 3, characterized in that, The outer wall of the sealing plug (8) is provided with a sealing ring (10).

5. A reaction vessel for removing impurities from lead-containing ferrous chloride waste acid according to claim 1, characterized in that, The outer wall of the vessel body (1) is fixedly provided with a mounting base (14), and a threaded rod (12) is rotatably provided on the top of the mounting base (14). The outer wall of the vessel body (1) is provided with a through hole (15), and the outer wall of the sealing plug (8) is fixedly provided with a connecting frame (11), and the connecting frame (11) extends to the outside of the vessel body (1) through the through hole (15). The connecting frame (11) is threaded onto the outer wall of the threaded rod (12).

6. A reaction vessel for removing impurities from lead-containing ferrous chloride waste acid according to claim 5, characterized in that, The outer wall of the vessel body (1) is fixedly fitted with a protective ring (13), and the protective ring (13) is fixedly fitted on the outer wall of the connecting frame (11).

7. The reaction vessel for removing impurities from lead-containing ferrous chloride waste acid according to claim 1, characterized in that, The blade of the stirring blade (5) forms an angle with the axis of the stirring rod (4).

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