Device for recovering metals in sewage

Abstract

The utility model relates to the technical field of sewage treatment devices, in particular to a device for recovering metals in sewage, which comprises a reaction tank, the reaction tank is used for reaction operation of sewage and reaction liquid medicine, a blow-off pipe is fixedly mounted at the bottom of the reaction tank, a blow-off valve is fixedly mounted on the blow-off pipe, a movable filter cartridge is arranged at the end part of the blow-off pipe, and the filter cartridge is connected with the reaction liquid medicine. The bottom end of the filter cartridge is fixedly provided with an outer pipe used for discharging waste water after reaction, a mesh cylinder is detachably installed in the filter cartridge and is of a mesh-shaped cylinder structure, the inner surface of the mesh cylinder is fixedly provided with a filter screen, the filter screen is used for blocking operation of metal particles, the bottom end of the filter cartridge is fixedly provided with a vertical pipe penetrating out of the outer pipe, and the vertical pipe is fixedly connected with the outer pipe. A valve is fixedly mounted on the vertical pipe, and a plurality of temperature control electric heating rods are fixedly mounted on the inner wall of the filter cartridge. The sewage treatment device is convenient for sewage reaction treatment and solid-liquid separation operation, has a drying function, and is convenient to use.

Description

Technical Field

[0001] This utility model relates to the technical field of wastewater treatment devices, and more specifically, to a device for recovering metals from wastewater. Background Technology

[0002] With the acceleration of industrialization and increasingly stringent environmental protection requirements, metal recovery from wastewater has become a key link in resource recycling and environmental protection. Currently, traditional precipitation is one of the commonly used technologies for metal recovery from wastewater. This method involves adding a precipitant to the wastewater to form metal ions, which are then separated and recovered. However, this method not only has low precipitation efficiency, but also involves a complex precipitate treatment process and is prone to secondary pollution.

[0003] Ion exchange is also a common recycling method, which uses ion exchange resins to exchange metal ions in wastewater to achieve recycling. However, ion exchange resins are expensive, have a limited lifespan, and the regeneration process is cumbersome, requiring a large amount of acid and alkali, which increases costs and is not environmentally friendly. Although adsorption can selectively adsorb metal ions, most adsorption materials have limited adsorption capacity, and the desorption process after adsorption is difficult, making it difficult to achieve efficient metal recovery and reuse of adsorption materials. For example, after activated carbon adsorbs metal ions, the desorption rate is usually low, resulting in resource waste and increased costs.

[0004] Currently, to achieve better metal recovery, corresponding reaction solutions are usually added based on the composition of the wastewater. The reaction converts metal ions into precipitates, thus separating the metals from the wastewater. However, this type of wastewater metal recovery device still has some shortcomings. For example, after separating the metal ions from the wastewater, it lacks a corresponding filtration component, failing to separate the metal precipitate from the wastewater. It also hinders the unloading of the metal precipitate after separation, causing inconvenience to the user. Therefore, we propose a wastewater metal recovery device. Utility Model Content

[0005] The purpose of this invention is to provide a metal recovery device from wastewater to address the deficiencies mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A metal recovery device for wastewater includes a reaction tank for reacting wastewater with a reaction solution. A drain pipe is fixedly installed at the bottom of the reaction tank, and a drain valve is fixedly installed on the drain pipe. A movable filter cylinder is provided at the end of the drain pipe. An outer pipe for discharging wastewater after the reaction is fixedly installed at the bottom of the filter cylinder. A mesh cylinder is detachably installed inside the filter cylinder. The mesh cylinder has a mesh-shaped cylindrical structure. A filter screen is fixedly installed on the inner surface of the mesh cylinder for blocking metal particles. A vertical pipe extending through the outer pipe is fixedly installed at the bottom of the filter cylinder, and a valve is fixedly installed on the vertical pipe.

[0008] Preferably, multiple crossbeams are fixedly installed on the cylindrical body of the reaction vessel, and the crossbeams are fixedly installed on an external frame.

[0009] Preferably, multiple inlet pipes are fixedly installed on the top of the reaction vessel, one of which is used for the introduction of wastewater, and the remaining inlet pipes are used for the addition of reaction solution.

[0010] Preferably, a top cover is detachably installed on the top surface of the reaction vessel, and a stirring motor is fixedly installed at the center of the top surface of the top cover. A vertically arranged stirring shaft is fixedly installed at the end of the output shaft of the stirring motor, and stirring blades are fixedly installed on the stirring shaft. The stirring blades are located inside the reaction vessel.

[0011] This setting allows for stirring, promoting a more complete reaction between the wastewater and the chemical solution.

[0012] Preferably, a plurality of columns are fixedly installed at the bottom of the filter cartridge, and rollers are fixedly installed at the bottom end of the columns.

[0013] Preferably, a plurality of inner support rods are fixedly installed on the inner wall of the filter cylinder, and the mesh cylinder abuts against the ends of the plurality of inner support rods, and the mesh cylinder and the filter cylinder are inserted into each other.

[0014] This feature allows the mesh tube to be pulled outwards, enabling operations such as cleaning inside the mesh tube.

[0015] Preferably, a plurality of temperature-controlled electric heating rods are fixedly installed on the inner wall of the filter cylinder, and the temperature-controlled electric heating rods are used to heat and dry the filter screen.

[0016] Preferably, the bottoms of the reaction vessel, the filter cylinder, and the mesh cylinder are all funnel-shaped, and the mesh cylinder can be removed along the top of the filter cylinder.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] 1. This utility model connects a movable filter cylinder to a drain pipe at the bottom of the reaction tank. The filter cylinder has a detachable mesh cylinder with a filter screen, which effectively separates the metal precipitate from the waste liquid after the wastewater reacts with the reaction solution. The drain valve of the drain pipe controls the discharge, and the outer pipe of the filter cylinder discharges the treated wastewater. The vertical pipe and valve facilitate the unloading of the filtered metal particles, effectively solving the problems of traditional devices lacking filter components and inconvenient unloading.

[0019] 2. This utility model allows the filter cylinder to move flexibly by installing columns and rollers at the bottom of the filter cylinder. Combined with the plug-in and removable design of the mesh cylinder and the filter cylinder, it is convenient to transfer and unload the separated metal precipitate and clean the mesh cylinder, which greatly improves the convenience of unloading operation and reduces the difficulty of operation for users.

[0020] 3. This utility model promotes the full reaction between wastewater and chemical solution by setting a stirring motor, stirring shaft and stirring blades at the top of the reaction tank, thereby improving the efficiency of metal ion conversion into precipitates; a temperature-controlled electric heating rod is installed on the inner wall of the filter cylinder to heat and dry the filter screen, further treating the metal precipitates. At the same time, the funnel-shaped bottom design of the reaction tank, filter cylinder and mesh cylinder facilitates the flow and separation of liquid and precipitates, thus achieving high efficiency and practicality in the overall treatment of metal recovery from wastewater. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is one of the partial structural schematic diagrams of this utility model;

[0023] Figure 3 This is a cross-sectional view of the filter cartridge of this utility model;

[0024] Figure 4 This is the second partial structural schematic diagram of the present utility model;

[0025] The meanings of the labels in the diagram are as follows:

[0026] 1. Reaction vessel; 10. Crossbeam plate; 11. Drain pipe; 12. Drain valve; 13. Liquid inlet pipe; 14. Top cover; 15. Stirring motor; 151. Stirring shaft; 152. Stirring blades;

[0027] 2. Filter cartridge; 20. Column; 21. Roller; 22. Outer tube; 23. Inner support rod; 24. Temperature-controlled electric heating rod; 25. Mesh tube; 251. Filter screen; 26. Vertical tube; 27. Valve. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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 1-4 This utility model provides a technical solution: a metal recovery device in wastewater, including a reaction tank 1. The reaction tank 1 is used for the reaction operation of wastewater and reaction solution. A drain pipe 11 is fixedly installed at the bottom of the reaction tank 1, and a drain valve 12 is fixedly installed on the drain pipe 11. The reaction tank 1 is used to mix and react wastewater and reaction solution. The drain pipe 11 and drain valve 12 at the bottom control the discharge of the substances after the reaction.

[0030] In this embodiment, a movable filter cylinder 2 is provided at the end of the sewage pipe 11. An outer pipe 22 for discharging wastewater after the reaction is fixedly installed at the bottom of the filter cylinder 2. A mesh cylinder 25 is detachably installed inside the filter cylinder 2. The mesh cylinder 25 has a mesh-shaped cylindrical structure. A filter screen 251 is fixedly installed on the inner surface of the mesh cylinder 25. The filter screen 251 is used to block metal particles. A vertical pipe 26 that passes through the outer pipe 22 is fixedly installed at the bottom of the filter cylinder 2. A valve 27 is fixedly installed on the vertical pipe 26 so that the mixture after the reaction can enter the filter cylinder 2 in an orderly manner and discharge the waste liquid through the outer pipe 22. The detachable mesh cylinder 25 and the internal filter screen 251 effectively intercept metal particles, realize the rapid separation of metal precipitates and waste liquid, and solve the problem of lack of filter components in traditional devices.

[0031] like Figure 1 As shown, multiple crossbeams 10 are fixedly installed on the cylinder of the reaction vessel 1. The crossbeams 10 are fixedly installed on the external frame to ensure that the reaction vessel 1 is stably supported.

[0032] like Figure 1 As shown, multiple inlet pipes 13 are fixedly installed on the top tank of the reaction tank 1. One inlet pipe 13 is used for the introduction of wastewater, and the remaining inlet pipes 13 are used for the addition of reaction solution, which facilitates the introduction of waste liquid and reaction solution.

[0033] like Figure 1 and Figure 4As shown, a top cover 14 is detachably installed on the top surface of the reaction tank 1 by multiple fastening bolts. A stirring motor 15 is fixedly installed at the center of the top surface of the top cover 14. A vertically arranged stirring shaft 151 is fixedly installed at the end of the output shaft of the stirring motor 15. A stirring blade 152 is fixedly installed on the stirring shaft 151. The stirring blade 152 is located inside the reaction tank 1, so that the stirring motor 15 drives the stirring blade 152 to fully stir the substances in the reaction tank 1, promote the uniform mixing of wastewater and pharmaceutical solution, accelerate the conversion of metal ions into precipitates, and improve reaction efficiency.

[0034] like Figure 2 As shown, multiple columns 20 are fixedly installed at the bottom of the filter cylinder 2, and rollers 21 are fixedly installed at the bottom end of the columns 20, so that the filter cylinder 2 can be moved flexibly and the position can be adjusted.

[0035] like Figure 3 As shown, multiple inner support rods 23 are fixedly installed on the inner wall of the filter cylinder 2. The mesh cylinder 25 abuts against the ends of the multiple inner support rods 23. The mesh cylinder 25 is inserted and connected to the filter cylinder 2. The mesh cylinder 25 can be removed along the top of the filter cylinder 2, so that the mesh cylinder 25 can be pulled outward to realize operations such as cleaning inside the mesh cylinder 25.

[0036] like Figure 3 As shown, multiple temperature-controlled electric heating rods 24 are fixedly installed on the inner wall of the filter cylinder 2. The temperature-controlled electric heating rods 24 are used to heat and dry the filter screen 251, which helps to treat the metal deposits on the inside of the filter screen 251.

[0037] It is worth noting that the bottoms of the reaction vessel 1, filter cylinder 2, and mesh cylinder 25 are all funnel-shaped, which facilitates the concentrated flow of the mixture to the bottom under the action of gravity, improves the separation and unloading effect, and enhances the overall practicality and ease of operation of the device.

[0038] Finally, it should be noted that the stirring motor 15 and other components involved in this utility model are all general standard parts or components known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the spare parts of this device, all the above-mentioned electrical components, which refer to power elements, electrical components and the matching controller and power supply, are connected by wires. The specific connection method should refer to the working principle in this utility model. The electrical connection between each electrical component is completed in the order of operation. The detailed connection method is a technology known in the art.

[0039] When using the wastewater metal recovery device of this utility model, the reaction tank 1 is first securely installed on the external frame by the crossbeam plate 10. Then, the wastewater and the reaction solution are introduced into the reaction tank 1 through the liquid inlet pipe 13. The stirring motor 15 is started to drive the stirring shaft 151 and stirring blades 152 to stir fully, so as to promote the uniform mixing of wastewater and reaction solution and accelerate the conversion of metal ions into precipitates.

[0040] After the reaction is complete, open the drain valve 12. The mixture after the reaction flows into the filter cylinder 2 through the drain pipe 11. At this time, close the valve 27 on the vertical pipe 26. The waste liquid flows out through the filter screen 251 and is discharged through the outer pipe 22. The metal particles are blocked inside the filter screen 251, achieving solid-liquid separation. After the separation is complete, use the bottom column 20 and roller 21 of the filter cylinder 2 to move it to the unloading position. Start the temperature-controlled electric heating rod 24 to heat and dry the filter screen 251. After drying, open the valve 27 to let the metal particles fall out. Alternatively, after the filter cylinder 2 is moved to the corresponding position, remove the mesh cylinder 25 along the top of the filter cylinder 2 and clean the metal particles inside it and the filter screen 251.

[0041] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A metal recovery device from wastewater, comprising a reaction tank (1), characterized in that: The reaction tank (1) is used for the reaction operation of sewage and reaction solution. A sewage pipe (11) is fixedly installed at the bottom of the reaction tank (1). A sewage valve (12) is fixedly installed on the sewage pipe (11). A movable filter cylinder (2) is provided at the end of the sewage pipe (11). An outer pipe (22) for discharging wastewater after reaction is fixedly installed at the bottom of the filter cylinder (2). A mesh cylinder (25) is detachably installed inside the filter cylinder (2). The mesh cylinder (25) has a mesh-shaped cylindrical structure. A filter screen (251) is fixedly installed on the inner surface of the mesh cylinder (25). The filter screen (251) is used for blocking metal particles. A vertical pipe (26) that passes through the outer pipe (22) is fixedly installed at the bottom of the filter cylinder (2). A valve (27) is fixedly installed on the vertical pipe (26).

2. The wastewater metal recovery device according to claim 1, characterized in that: Multiple crossbeams (10) are fixedly installed on the cylinder of the reaction vessel (1), and the crossbeams (10) are fixedly installed on the external frame.

3. The wastewater metal recovery device according to claim 1, characterized in that: Multiple inlet pipes (13) are fixedly installed on the top tank of the reaction vessel (1). One of the inlet pipes (13) is used for the introduction of sewage, and the remaining inlet pipes (13) are used for the addition of reaction solution.

4. The wastewater metal recovery device according to claim 1, characterized in that: A top cover (14) is detachably installed on the top surface of the reaction vessel (1). A stirring motor (15) is fixedly installed at the center of the top surface of the top cover (14). A stirring shaft (151) is fixedly installed at the end of the output shaft of the stirring motor (15). A stirring blade (152) is fixedly installed on the stirring shaft (151). The stirring blade (152) is located inside the reaction vessel (1).

5. The wastewater metal recovery device according to claim 1, characterized in that: The bottom of the filter cylinder (2) is fixedly installed with multiple columns (20), and the bottom end of the columns (20) is fixedly installed with rollers (21).

6. The wastewater metal recovery device according to claim 1, characterized in that: Multiple inner support rods (23) are fixedly installed on the inner wall of the filter cylinder (2). The mesh cylinder (25) abuts against the ends of the multiple inner support rods (23). The mesh cylinder (25) and the filter cylinder (2) are inserted into each other.

7. The wastewater metal recovery device according to claim 1, characterized in that: Multiple temperature-controlled electric heating rods (24) are fixedly installed on the inner wall of the filter cylinder (2). The temperature-controlled electric heating rods (24) are used to heat and dry the filter screen (251).

8. The wastewater metal recovery device according to claim 1, characterized in that: The bottoms of the reaction vessel (1), the filter cylinder (2), and the mesh cylinder (25) are all funnel-shaped, and the mesh cylinder (25) can be removed along the top of the filter cylinder (2).

Images