Heavy metal adsorption device for sewage treatment

Abstract

The utility model relates to the technical field of sewage treatment, and discloses a heavy metal adsorption device for sewage treatment, which comprises a base and a treatment box fixedly connected to the top surface of the base, the inner side wall of the treatment box is rotatably connected with a mixing assembly, the end surface of the treatment box is fixedly connected with a motor, and the motor is fixedly connected with the base. An output shaft of the motor is fixedly connected with one end of the mixing assembly, a filter plate is fixedly connected to the inner side wall of the treatment box, a backflow assembly is fixedly connected to the top surface of the filter plate in a penetrating mode, and a cleaning assembly is slidably arranged in the side wall of the backflow assembly in an embedded mode. According to the utility model, through the arrangement of the mixing assembly and the backflow assembly, wastewater and an adsorbent are fully mixed, a better adsorption effect is achieved through multiple times of circulation, and through the arrangement of the cleaning assembly, impurities at the filter holes are cleaned, so that the problems that the passing ability of a filter plate is reduced after long-time use, and an operator needs to stop the filter plate for treatment are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of sewage treatment, in particular to a heavy metal adsorption device for sewage treatment. Background Art

[0002] With the development of the economy and society, the types of heavy metal wastewater are increasing. Wastewater discharged from electroplating, mining and metal manufacturing, industrial machinery production, photography and painting, pesticide and textile industries often contains heavy metals such as cadmium, copper, nickel, tin and calcium. Unlike organic pollutants, heavy metals will not decay. Once water is contaminated by heavy metals, it is difficult to repair, so it needs to be treated before discharge.

[0003] For example, a heavy metal adsorption device for sewage treatment with publication number CN220201530U includes a shell, a scraper, an adsorption member and a driving member. The shell has an adsorption chamber and a receiving chamber arranged outside the adsorption chamber. The inner wall of the adsorption chamber is provided with a first opening and a second opening connected to the receiving chamber, and the second opening is located below the first opening. The shell is provided with an inlet connected to the receiving chamber. The scraper is rotatably installed in the receiving chamber, and the scraper rotates relative to the axis of the receiving chamber to drive the sewage to move from the inlet to the first opening. The adsorption member is installed in the second opening to adsorb heavy metal ions in the sewage, and the sewage in the adsorption chamber passes through the adsorption member to enter the receiving chamber. The driving member is installed outside the shell and connected to the scraper. The driving member is used to drive the scraper to rotate around the axis of the receiving chamber. As a result, the sewage passes through the adsorption member multiple times, thereby adsorbing the sewage multiple times.

[0004] At present, the main methods for treating heavy metal wastewater are chemical, physical and biological methods. Among them, the physical method usually separates through concentration and adsorption. However, the existing equipment still has some shortcomings when in use, such as: by setting up a multi-stage filter plate, not only the device volume is larger, but also the saturation degree of adsorption of each stage of the filter plate is different, which is not convenient to replace together; when the wastewater adsorbed by the adsorbent passes through the filter plate, some impurities in it accumulate at the filter plate, which can easily lead to a decrease in the permeability of the filter plate over time, requiring operators to handle it, affecting the working efficiency of the equipment.

[0005] Therefore, we proposed a heavy metal adsorption device for sewage treatment in order to solve the above problems. Utility Model Content

[0006] The utility model aims to provide a heavy metal adsorption device for sewage treatment, so as to solve the problem proposed in the above-mentioned background technology that the multi-stage filter plate is set, which not only makes the device larger in size, but also the saturation degree of adsorption of each filter plate is different, which is not convenient to replace together; when the wastewater adsorbed by the adsorbent passes through the filter plate, some impurities therein accumulate at the filter plate, which may easily lead to a decrease in the permeability of the filter plate over time, requiring the operator to handle it, affecting the working efficiency of the equipment.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a heavy metal adsorption device for sewage treatment, comprising a base and a treatment box fixedly connected to the top surface of the base, a mixing assembly rotatably connected to the inner wall of the treatment box, a motor fixedly connected to the end surface of the treatment box, the output shaft of the motor fixedly connected to one end of the mixing assembly, a filter plate fixedly connected to the inner wall of the treatment box, a reflux assembly fixedly connected through the top surface of the filter plate, and a cleaning assembly embedded and slidably arranged on the side wall of the reflux assembly.

[0008] Preferably, a feed port is provided at the upper end of the side wall of the processing box, a discharge port is provided on one end surface of the processing box, and an observation port is provided on one end surface of the processing box.

[0009] Preferably, the mixing assembly comprises a rotating shaft rotatably connected to the inner side wall of the processing box, a plurality of stirring blades are fixedly connected to both ends of the side wall of the rotating shaft, and a cam is fixedly connected to the middle of the side wall of the rotating shaft.

[0010] Preferably, the reflux assembly includes a plunger barrel fixedly connected to the filter plate, a piston sealingly and slidingly connected to the inner wall of the plunger barrel, a connecting rod fixedly connected to the side wall of the piston, the connecting rod and the top surface of the plunger barrel are slidingly connected, the top of the connecting rod is fixedly connected to a back plate, and the bottom surface of the back plate and the top surface of the plunger barrel are elastically connected by a spring and a telescopic sleeve.

[0011] Preferably, the reflux assembly also includes a one-way liquid inlet pipe passing through and fixedly connected to the outer walls on both sides of the plunger barrel, and one-way liquid outlet pipes passing through and fixedly connected to the outer walls on the other two sides of the plunger barrel, one end of each of the one-way liquid outlet pipes is fixedly connected to a reflux pipe, and the end of the reflux pipe away from the one-way liquid outlet pipe is connected to the upper end part of the filter plate.

[0012] Preferably, sliding holes are symmetrically provided on the side wall of the plunger cylinder;

[0013] The cleaning assembly includes a sliding plate that slides through the sliding hole, one end of the sliding plate is fixedly connected to the connecting rod, the other end of the sliding plate is fixedly connected to a mounting seat, the top surface of the mounting seat is provided with bristles, and a baffle is fixedly connected to the side wall of the sliding plate, and the baffle slides against the outer wall of the plunger cylinder.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] 1. Through the setting of the mixing component and the reflux component, the mixing component rotates to fully mix the wastewater and the adsorbent to improve the adsorption effect; when the mixing component rotates, the cam and the reflux component's abutment plate act to drive the piston to move up and down, and the wastewater at the lower end of the filter plate is drawn in, and then passed into the reflux pipe, so that it returns to the upper end of the filter plate for adsorption treatment again, and a better adsorption effect is achieved through multiple cycles.

[0016] 2. Through the cleaning assembly, the connecting rod is driven by the cam, and at the same time, it can drive the sliding plate in the cleaning assembly to move, so that the mounting seat drives the bristles to make up and down reciprocating motion. Through the action of the bristles and the filter holes of the filter plate, the impurities in the filter holes are cleaned, avoiding the problem of reduced permeability of the filter plate after long-term use, which requires the operator to stop the machine for processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the processing box in the utility model;

[0019] Figure 3 It is a structural schematic diagram of the mixing component part in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the reflux component and the cleaning component in the utility model;

[0021] Figure 5 for Figure 4 A magnified schematic diagram of the structure of part A;

[0022] Figure 6 for Figure 4 A magnified schematic diagram of the structure of part B.

[0023] In the figure: 1. base; 2. processing box; 21. feed port; 22. discharge port; 23. observation port; 3. mixing assembly; 31. rotating shaft; 32. stirring blade; 33. cam; 4. motor; 5. filter plate; 6. reflux assembly; 61. plunger cylinder; 611. sliding hole; 62. piston; 63. connecting rod; 64. abutment plate; 65. spring; 66. telescopic sleeve; 67. one-way liquid inlet pipe; 68. one-way liquid outlet pipe; 69. reflux pipe; 7. cleaning assembly; 71. sliding plate; 72. mounting seat; 73. bristles; 74. baffle. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Example 1

[0026] See also Figure 1-Figure 5 A heavy metal adsorption device for sewage treatment comprises a base 1 and a treatment box 2 fixedly connected to the top surface of the base 1, a mixing assembly 3 is rotatably connected to the inner side wall of the treatment box 2, and the setting of the mixing assembly 3 enables the wastewater containing heavy metals to be better mixed with the added adsorbent, a motor 4 is fixedly connected to the end surface of the treatment box 2, and the output shaft of the motor 4 is fixedly connected to one end of the mixing assembly 3, a filter plate 5 is fixedly connected to the inner side wall of the treatment box 2, and the adsorbent is isolated by the filter plate 5 after adsorbing heavy metal ions, and the treated wastewater flows down through the filter plate 5, and a reflux assembly 6 is fixedly connected through the top surface of the filter plate 5, and the setting of the reflux assembly 6 enables the filtered wastewater to pass through the upper part of the filter plate 5 again, and continue to adsorb heavy metals, so as to achieve the effect of multiple treatments, and a cleaning assembly 7 is embedded and slidably set on the side wall of the reflux assembly 6, and the setting of the cleaning assembly 7 enables the reflux assembly 6 to drive the cleaning assembly 7 to clean the filter hole part of the filter plate 5 when it is running, so as to avoid the decrease of its passability after long-term use, and there is no need for the operator to stop the machine for treatment.

[0027] A feed port 21 is provided at the upper end of the side wall of the treatment box 2 for introducing wastewater containing heavy metals and adsorbents. A discharge port 22 is provided on one end face of the treatment box 2, and the treated wastewater is discharged through the discharge port 22. An observation port 23 is provided on one end face of the treatment box 2 for the convenience of staff to check the internal situation.

[0028] The mixing assembly 3 includes a rotating shaft 31 rotatably connected to the inner wall of the treatment box 2, and multiple stirring blades 32 are fixedly connected to both ends of the side wall of the rotating shaft 31. The rotating shaft 31 drives the multiple stirring blades 32 to rotate through the motor 4 to fully mix the wastewater containing heavy metals with the adsorbent. A cam 33 is fixedly connected to the middle of the side wall of the rotating shaft 31.

[0029] The reflux assembly 6 includes a plunger cylinder 61 which is fixedly connected to the filter plate 5, a piston 62 is sealingly and slidably connected to the inner wall of the plunger cylinder 61, a connecting rod 63 is fixedly connected to the side wall of the piston 62, the connecting rod 63 is slidably connected to the top surface of the plunger cylinder 61, a butt plate 64 is fixedly connected to the top of the connecting rod 63, the bottom surface of the butt plate 64 and the top surface of the plunger cylinder 61 are elastically connected by a spring 65 and a telescopic sleeve 66, when the rotating shaft 31 drives the cam 33 to rotate, the cam 33 and the butt plate 64 are abutted against each other under the action of the elastic force of the spring 65, and then the piston 62 can be driven to reciprocate up and down through the connecting rod 63, the spring 65 is arranged inside the telescopic sleeve 66, and the spring 65 is protected by the telescopic sleeve 66.

[0030] The reflux assembly 6 also includes a one-way liquid inlet pipe 67 that passes through and is fixedly connected to the outer walls on both sides of the plunger cylinder 61. When the piston 62 moves upward, the waste water is sucked in through the one-way liquid inlet pipe 67. The outer walls on the other two sides of the plunger cylinder 61 are passed through and fixedly connected with a one-way liquid outlet pipe 68. When the piston 62 moves downward, the waste water is discharged through the one-way liquid outlet pipe 68. One end of each one-way liquid outlet pipe 68 is fixedly connected to a reflux pipe 69. The end of the reflux pipe 69 away from the one-way liquid outlet pipe 68 is connected to the upper end of the filter plate 5, so that the waste water can be passed into the upper end of the filter plate 5 again through the action of the piston 62 for heavy metal adsorption treatment.

[0031] In this embodiment: when in use, the wastewater containing heavy metals to be treated is passed into the treatment box 2, and then the corresponding adsorbent, such as activated carbon, is added; the motor 4 is started to drive the mixing component 3 to rotate, so that the wastewater and the adsorbent are fully mixed to improve the adsorption effect; when the mixing component 3 rotates, the cam 33 and the abutment plate 64 of the reflux component 6 act to drive the piston 62 to move up and down, and the wastewater at the lower end of the filter plate 5 is sucked in, and then passed into the reflux pipe 69, so that it returns to the upper end of the filter plate 5 for adsorption treatment again, and a better adsorption effect is achieved through multiple cycles.

[0032] Example 2

[0033] This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 4 and Figure 6 , sliding holes 611 are symmetrically opened on the side wall of the plunger cylinder 61;

[0034] The cleaning component 7 includes a sliding plate 71 that slides through the sliding hole 611. One end of the sliding plate 71 is fixedly connected to the connecting rod 63. The other end of the sliding plate 71 is fixedly connected to a mounting seat 72. Bristles 73 are provided on the top surface of the mounting seat 72. A baffle 74 is fixedly connected to the side wall of the sliding plate 71. The baffle 74 slides against the outer wall of the plunger cylinder 61. The baffle 74 is set to shield the sliding hole 611.

[0035] In this embodiment: when the connecting rod 63 is driven by the cam 33, it can drive the sliding plate 71 in the cleaning assembly 7 to move, and then the mounting seat 72 drives the bristles 73 to make up and down reciprocating motions. Through the action of the bristles 73 and the filter holes of the filter plate 5, the impurities in the filter holes are cleaned, avoiding the problem that the permeability of the filter plate 5 is reduced after long-term use, and the operator needs to stop the machine for processing.

[0036] Working principle: When in use, the wastewater containing heavy metals to be treated is introduced into the treatment box 2 through the feed port 21, and the corresponding adsorbent is added, and then the motor 4 is started to drive the mixing component 3 to rotate and mix it. The wastewater flows down through the filter plate 5, and the adsorbent is isolated above the filter plate 5. While the mixing component 3 rotates, the cam 33 and the abutment plate 64 of the reflux component 6 drive the piston 62 to move up and down. When the piston 62 rises, the wastewater at the lower end of the filter plate 5 is drawn in through the one-way liquid inlet pipe 67. When the piston 62 descends, the wastewater is passed into the reflux pipe 69 through the one-way liquid outlet pipe 68, so that the wastewater returns to the upper end of the filter plate 5 for adsorption treatment.

[0037] The contents not described in detail in this specification belong to the prior art known to professional and technical personnel in this field.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A heavy metal adsorption device for sewage treatment, comprising a base (1) and a treatment box (2) fixedly connected to the top surface of the base (1), characterized in that: A mixing assembly (3) is rotatably connected to the inner wall of the treatment box (2), a motor (4) is fixedly connected to the end surface of the treatment box (2), an output shaft of the motor (4) is fixedly connected to one end of the mixing assembly (3), a filter plate (5) is fixedly connected to the inner wall of the treatment box (2), a reflux assembly (6) is fixedly connected to the top surface of the filter plate (5), and a cleaning assembly (7) is slidably embedded in the side wall of the reflux assembly (6).

2. A heavy metal adsorption device for sewage treatment according to claim 1, characterized in that: A material inlet (21) is provided at the upper end of the side wall of the processing box (2), a material outlet (22) is provided on one end surface of the processing box (2), and an observation port (23) is provided on one end surface of the processing box (2).

3. A heavy metal adsorption device for sewage treatment according to claim 1, characterized in that: The mixing assembly (3) comprises a rotating shaft (31) rotatably connected to the inner wall of the processing box (2), a plurality of stirring blades (32) are fixedly connected to both ends of the side wall of the rotating shaft (31), and a cam (33) is fixedly connected to the middle of the side wall of the rotating shaft (31).

4. A heavy metal adsorption device for sewage treatment according to claim 1, characterized in that: The reflux assembly (6) comprises a plunger cylinder (61) which penetrates and is fixedly connected to the filter plate (5); a piston (62) is sealingly and slidably connected to the inner wall of the plunger cylinder (61); a connecting rod (63) is fixedly connected to the side wall of the piston (62); the connecting rod (63) is slidably connected to the top surface of the plunger cylinder (61); a support plate (64) is fixedly connected to the top of the connecting rod (63); and the bottom surface of the support plate (64) and the top surface of the plunger cylinder (61) are elastically connected via a spring (65) and a telescopic sleeve (66).

5. A heavy metal adsorption device for sewage treatment according to claim 4, characterized in that: The reflux assembly (6) further comprises a one-way liquid inlet pipe (67) penetrating and fixedly connected to the outer walls on both sides of the plunger barrel (61); one-way liquid outlet pipes (68) penetrating and fixedly connected to the outer walls on the other two sides of the plunger barrel (61); one end of each of the one-way liquid outlet pipes (68) is fixedly connected to a reflux pipe (69); and one end of the reflux pipe (69) away from the one-way liquid outlet pipe (68) is in communication with the upper end of the filter plate (5).

6. A heavy metal adsorption device for sewage treatment according to claim 4, characterized in that: The side wall of the plunger cylinder (61) is symmetrically provided with sliding holes (611); The cleaning assembly (7) comprises a sliding plate (71) which passes through and slides inside the sliding hole (611); one end of the sliding plate (71) is fixedly connected to the connecting rod (63); the other end of the sliding plate (71) is fixedly connected to a mounting seat (72); bristles (73) are provided on the top surface of the mounting seat (72); a baffle (74) is fixedly connected to the side wall of the sliding plate (71); the baffle (74) slides against the outer wall of the plunger cylinder (61).

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