Flocculation device for heavy metal wastewater

Abstract

The utility model discloses a flocculation device for heavy metal wastewater, including shell, raw material cavity, conveying cavity, reaction cavity, baffle, stirring rod, drive component and conveying component, the quantitative flocculating agent is placed in raw material cavity, and the conveying component of installation drives baffle rotation, and the flocculating agent in raw material cavity falls into between adjacent baffle, and with the rotation of baffle can further the quantitative continuous conveying of flocculating agent to reaction cavity, and then can realize the continuous addition of a certain amount of flocculating agent to wastewater in multiple times, and the drive component of installation drives telescopic pipe rotation, and the stirring rod on the rotation of telescopic pipe and drives dispersion block and mounting rod, under the action of centrifugal force, and dispersion block will fall on its surface flocculating agent and throw in the multiple position of reaction cavity, and cooperate the rotation of installed stirring rod and carry out the stirring of waste liquid and flocculating agent in reaction cavity, make flocculating agent and raw material contact more fully, improve the efficiency of metal coagulation, improve the quality of wastewater treatment.

Description

TECHNICAL FIELD

[0001] The utility model relates to a flocculation device, concretely is a flocculation device for heavy metal wastewater. BACKGROUND

[0002] The heavy metal wastewater is very extensive in origin, and the wastewater containing copper, nickel, chromium, lead, zinc and cadmium is the most common heavy metal wastewater, which mainly comes from metal smelting and surface treatment industry. The heavy metal elements can enter the human body through air, drinking water and food, damage the normal physiological metabolism of the human body, cause serious diseases, and even death. Therefore, the treatment of heavy metal wastewater has always been a hot spot in the field of environmental protection. The existing wastewater treatment needs to add flocculants to the water, and the existing adding method is to directly put a large amount of flocculants into the wastewater at one time, and then stir the flocculation by the stirrer. This method has slow flocculant diffusion speed and low flocculation efficiency, which affects the treatment quality of the metal wastewater. Therefore, a flocculation device for heavy metal wastewater is needed to solve this problem. SUMMARY

[0003] The utility model aims at providing a flocculation device for heavy metal wastewater to solve the problems in the background art.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0005] A flocculation device for heavy metal wastewater comprises a shell, a raw material cavity, a conveying cavity and a reaction cavity are arranged in the shell, a connecting pipe is arranged at the bottom of the raw material cavity, one end of the connecting pipe away from the raw material cavity is communicated with the conveying cavity, the bottom of the conveying cavity is communicated with the reaction cavity, a plurality of partition plates are arranged in the conveying cavity, one end of the partition plate is attached to the inner wall of the conveying cavity, a conveying assembly is installed on the side wall of the conveying cavity, and the partition plate is connected with the conveying assembly;

[0006] A chute is formed in the side wall of the reaction cavity, a mounting plate is slidably installed in the chute, an extension pipe is arranged on one side of the mounting plate, a mounting hole is formed in the mounting plate, a rotating shaft is arranged in the mounting hole, the movable end of the extension pipe is rotatably connected with the mounting plate through a bearing, the fixed end of the extension pipe is rotatably connected with a horizontal plate, the horizontal plate is connected with the side wall of the reaction cavity, a dispersing block is connected with one end of the extension pipe, and an installation rod is connected with the other end of the extension pipe; the dispersing block is arranged at the bottom of the conveying cavity, and a stirring rod is installed on the installation rod;

[0007] A driving assembly is installed on the shell and connected with the extension pipe.

[0008] A transmission assembly is connected with the driving assembly, and one end of the transmission assembly away from the driving assembly is connected with the mounting plate.

[0009] As a further embodiment of this utility model: the conveying assembly includes a driving component, which is installed on the rear wall of the conveying cavity. A driving shaft is installed at the output end of the driving component, which extends into the conveying cavity, and a partition is installed on the driving shaft.

[0010] As a further embodiment of this utility model: the driving assembly includes a driving component, the driving component is mounted on the housing, a driving rod is mounted on the output end of the driving component, the end of the driving rod away from the driving component extends into the reaction chamber, and a connecting unit is mounted on the driving rod, the end of the connecting unit away from the driving rod is connected to the fixed end of the telescopic tube.

[0011] As a further embodiment of this utility model: the transmission assembly includes an elastic component, one end of which is connected to the mounting plate and the other end of which is connected to the bottom wall of the slide groove;

[0012] A cam is mounted on the drive rod, and the cam is located on one side of the mounting plate.

[0013] As a further embodiment of this invention, the elastic component is a spring.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows: When the device is in use, a measured amount of flocculant is placed in the raw material chamber. The driving component drives the connected driving shaft to rotate, which in turn drives multiple partitions to rotate. Adjacent partitions form a conveying chamber, and the flocculant in the raw material chamber falls into the conveying chamber. As the partitions rotate, the flocculant can be continuously and quantitatively conveyed to the reaction chamber, thus enabling the continuous addition of a certain amount of flocculant to the wastewater in multiple stages. The driving component drives the connected driving rod to rotate, which in turn drives the telescopic tube to rotate via the connecting unit. The telescopic tube then drives the dispersing block and the stirring rod on the mounting rod to rotate. Under centrifugal force, the dispersing block throws the flocculant falling on its surface into multiple positions within the reaction chamber. The rotating agitator, in conjunction with the installed stirring rod, stirs the waste liquid and flocculant in the reaction chamber, ensuring more thorough contact between the flocculant and the wastewater, thus improving the efficiency of metal flocculation. The rotating drive rod drives the cam to rotate, and the cam's rotation, in contact with the mounting plate, compresses the mounting plate downwards. This downward movement of the mounting plate compresses the elastic component, generating elastic force. Simultaneously, the downward movement of the mounting plate causes the movable end of the telescopic tube to move downwards, allowing the stirring rod on the mounting rod to move longitudinally downwards during rotation. After the cam disengages from the mounting plate, the elastic force causes the mounting plate to reset, which in turn causes the stirring rod on the mounting rod to move upwards and reset. In this way, the stirring rod can stir wastewater at different depths, further improving the efficiency of metal reaction flocculation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of a flocculation device for heavy metal wastewater.

[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0017] Figure 3 This is a schematic diagram of the connecting unit in a flocculation device for heavy metal wastewater.

[0018] In the diagram: 1. Shell; 2. Raw material chamber; 3. Reaction chamber; 4. Connecting pipe; 5. Conveying chamber; 6. Partition plate; 7. Drive shaft; 8. Dispersion block; 9. Horizontal plate; 10. Telescopic pipe; 11. Mounting plate; 12. Elastic component; 13. Mounting rod; 14. Stirring rod; 15. Connecting unit; 16. Drive rod; 17. Cam; 18. Drive component; 19. Bearing. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1 to 3 As an embodiment of this utility model, a flocculation device for heavy metal wastewater includes a shell 1, in which a raw material chamber 2, a conveying chamber 5 and a reaction chamber 3 are provided. A connecting pipe 4 is provided at the bottom of the raw material chamber 2, and the end of the connecting pipe 4 away from the raw material chamber 2 is connected to the conveying chamber 5. The bottom of the conveying chamber 5 is connected to the reaction chamber 3. A plurality of partitions 6 are provided in the conveying chamber 5, one end of the partitions 6 is attached to the inner wall of the conveying chamber 5, and a conveying assembly is installed on the side wall of the conveying chamber 5. The partitions 6 are connected to the conveying assembly.

[0021] A sliding groove is provided on the side wall of the reaction chamber 3, and an installation plate 11 is slidably installed in the sliding groove. A telescopic tube 10 is provided on one side of the installation plate 11. An installation hole is provided on the installation plate 11, and a rotating shaft is provided in the installation hole. The movable end of the telescopic tube 10 is rotatably connected to the installation plate 11 through a bearing 19. A horizontal plate 9 is rotatably connected to the fixed end of the telescopic tube 10. The horizontal plate 9 is connected to the side wall of the reaction chamber 3. A dispersion block 8 is connected to one end of the telescopic tube 10, and an installation rod 13 is connected to the other end. The dispersion block 8 is located at the bottom of the conveying chamber 5, and the stirring rod 14 is installed on the installation rod 13.

[0022] A drive assembly is installed on the housing 1, and the drive assembly is connected to the telescopic tube 10.

[0023] A transmission component is connected to the drive component, and the end of the transmission component away from the drive component is connected to the mounting plate 11.

[0024] In this embodiment, when the device is in use, a fixed amount of flocculant is placed in the raw material chamber 2. The installed conveying component drives the partition 6 to rotate, and the flocculant in the raw material chamber 2 falls between the adjacent partitions 6. As the partition 6 rotates, the flocculant can be continuously and quantitatively conveyed to the reaction chamber 3, thereby realizing the continuous addition of a certain amount of flocculant to the wastewater in multiple portions. The installed driving component drives the telescopic tube 10 to rotate, and the rotation of the telescopic tube 10 drives the dispersion block 8 and the stirring rod 14 on the mounting rod 13 to rotate. Under the action of centrifugal force, the dispersion block 8 throws the flocculant falling on its surface to multiple positions in the reaction chamber 3. With the rotation of the installed stirring rod 14, the waste liquid and flocculant in the reaction chamber 3 are stirred, so that the flocculant and raw materials are in more sufficient contact, improving the efficiency of metal agglomeration and improving the quality of wastewater treatment.

[0025] As an embodiment of the present invention, the conveying assembly includes a driving member, which is installed on the rear wall of the conveying cavity 5. A driving shaft 7 is installed at the output end of the driving member, which extends into the conveying cavity 5, and a partition 6 is installed on the driving shaft 7.

[0026] In this embodiment, the driving component drives the connected driving shaft 7 to rotate, and the rotation of the driving shaft 7 drives multiple partitions 6 to rotate. A conveying chamber 5 is formed between adjacent partitions 6. The flocculant in the raw material chamber 2 falls into the conveying chamber 5. As the partitions 6 rotate, the flocculant can be quantitatively and continuously conveyed to the reaction chamber 3. This allows a certain amount of flocculant to be added to the wastewater in multiple batches. Combined with the stirring of the stirring rod 14 and the dispersion of the dispersing block 8, the flocculant and raw material are in more sufficient contact, improving the efficiency of metal agglomeration.

[0027] Furthermore, the driving component can be a stepper motor or a servo motor, etc., which will not be described in detail here.

[0028] As an embodiment of the present invention, the driving assembly includes a driving component 18, which is mounted on the housing 1. A driving rod 16 is mounted on the output end of the driving component 18. The end of the driving rod 16 away from the driving component 18 extends into the reaction chamber 3, and a connecting unit 15 is mounted on the driving rod 16. The end of the connecting unit 15 away from the driving rod 16 is connected to the fixed end of the telescopic tube 10.

[0029] In this embodiment, the driving component 18 drives the driving rod 16 connected to it to rotate. The rotation of the driving rod 16 drives the telescopic tube 10 to rotate through the connecting unit 15. The rotation of the telescopic tube 10 in turn drives the dispersion block 8 and the stirring rod 14 on the mounting rod 13 to rotate. Under the action of centrifugal force, the dispersion block 8 throws the flocculant that falls on its surface into multiple positions in the reaction chamber 3. With the rotation of the installed stirring rod 14, the waste liquid and flocculant in the reaction chamber 3 are stirred, so that the flocculant and raw materials are in more sufficient contact, improving the efficiency of metal agglomeration and improving the quality of wastewater treatment.

[0030] Furthermore, the driving component 18 can be a stepper motor or a servo motor, etc., which will not be described in detail here.

[0031] Furthermore, the connecting unit 15 can be a gear set or a worm gear and worm wheel combination, which will not be described in detail here.

[0032] As an embodiment of the present utility model, the transmission assembly includes an elastic component 12, one end of which is connected to the mounting plate 11 and the other end is connected to the bottom wall of the slide groove.

[0033] A cam 17 is mounted on the drive rod 16, and the cam 17 is located on one side of the mounting plate 11.

[0034] In this embodiment, the rotation of the drive rod 16 drives the cam 17 to rotate. The rotation of the cam 17 and its contact with the mounting plate 11 will compress the mounting plate 11 and move it downward. The downward movement of the mounting plate 11 will compress the elastic component 12, which will generate elastic force. At the same time, the downward movement of the mounting plate 11 will drive the movable end of the telescopic tube 10 to move downward, thereby enabling the stirring rod 14 on the mounting rod 13 to move longitudinally downward during rotation. After the cam 17 disengages from the mounting plate 11, the elastic force will drive the mounting plate 11 to reset. The reset of the mounting plate 11 will then drive the stirring plate on the mounting rod 13 to move upward and reset. In this way, the stirring rod 14 can stir wastewater at different depths, improving the efficiency of metal reaction and sedimentation.

[0035] In one embodiment of this utility model, the elastic component 12 is a spring.

[0036] In this embodiment, the elastic component 12 is a spring, which is compressed to generate elastic force when subjected to pressure.

[0037] The working principle of this utility model is as follows: When the device is in use, a fixed amount of flocculant is placed in the raw material chamber 2. The driving component drives the drive shaft 7 connected to it to rotate. The rotation of the drive shaft 7 drives multiple partitions 6 to rotate, and a conveying chamber 5 is formed between adjacent partitions 6. The flocculant in the raw material chamber 2 falls into the conveying chamber 5. With the rotation of the partitions 6, the flocculant can be continuously and quantitatively conveyed to the reaction chamber 3, thereby realizing the continuous addition of a certain amount of flocculant to the wastewater in multiple batches. The driving component 18 drives the drive rod 16 connected to it to rotate. The rotation of the drive rod 16 drives the telescopic tube 10 to rotate through the connecting unit 15. The rotation of the telescopic tube 10 drives the dispersion block 8 and the stirring rod 14 on the mounting rod 13 to rotate. Under the action of centrifugal force, the dispersion block 8 throws the flocculant falling on its surface to multiple positions in the reaction chamber 3, which, together with the installed stirring rod, causes the flocculant to fall into multiple positions in the reaction chamber 3. Rotating rod 14 stirs the waste liquid and flocculant in reaction chamber 3, making the flocculant and wastewater more fully contacted and improving the efficiency of metal flocculation. Rotating drive rod 16 drives cam 17 to rotate. When cam 17 rotates and contacts mounting plate 11, it squeezes mounting plate 11 and moves it downward. The downward movement of mounting plate 11 compresses elastic component 12, which generates elastic force. At the same time, the downward movement of mounting plate 11 drives the movable end of telescopic tube 10 to move downward, so that stirring rod 14 on mounting rod 13 can move vertically downward during rotation. After cam 17 disengages from mounting plate 11, it drives mounting plate 11 to reset under the action of elastic force. The reset of mounting plate 11 then drives stirring rod 13 to move upward and reset. In this way, stirring rod 14 can stir wastewater at different depths, further improving the efficiency of metal reaction flocculation.

[0038] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

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