Heavy metal ion precipitation mechanism for wastewater treatment

Abstract

The utility model relates to the technical field of wastewater treatment, and discloses a heavy metal ion precipitation mechanism for wastewater treatment, which comprises a water tank, a tank cover fixedly connected to the top of the water tank, a U-shaped frame fixedly connected to the top of the tank cover close to the middle, a first motor fixedly connected to the middle of the top of the U-shaped frame, and a screw rod fixedly connected to the bottom output end of the first motor through the U-shaped frame. The bottom of the lead screw is rotationally connected to the top of the box cover, a lifting plate is in threaded connection with the circumferential surface of the lead screw, the lifting plate is fixedly sleeved with a lead screw nut matched with the lead screw, sliding rods are fixedly connected to the two ends of the bottom of the U-shaped frame, the bottoms of the two sliding rods penetrate through the lifting plate to be fixedly connected to the top of the box cover, and round holes matched with the sliding rods are formed in the two sides of the lifting plate. According to the utility model, the technical effects that whether the inner wall of the water tank needs to be cleaned or not can be selected in real time according to the use condition, the practicability of the mechanism is improved, the service life of the scraper blade is prolonged, and the maintenance cost is reduced are realized.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a heavy metal ion precipitation mechanism for wastewater treatment. Background Art

[0002] Heavy metal ions in sewage are extremely harmful. They not only damage human health, but also pollute soil and groundwater, affecting crop growth and drinking water safety. They are also toxic to aquatic organisms, destroying the aquatic ecological balance, affecting biodiversity, and thus undermining the stability of the entire ecosystem.

[0003] After searching, the Chinese patent authorization number CN221254130U discloses a heavy metal ion wastewater treatment equipment, which belongs to the technical field of wastewater treatment equipment. The utility model includes a treatment barrel, a barrel cover is threadedly connected to the top of the treatment barrel, a stirring mechanism is fixedly connected to the bottom of the top of the barrel cover, a water inlet is fixedly connected to the left side of the top of the barrel cover, a feeding inlet is fixedly connected to the right side of the top of the barrel cover, an annular sheet is fixedly connected inside the treatment barrel, a filtering mechanism is threadedly connected to the bottom of the treatment barrel, and a support seat is fixedly connected to the bottom of the surface of the treatment barrel. The device accelerates the mixing of drugs and heavy metal ions through the stirring mechanism, so that the heavy metal ions form precipitation, and the heavy metal ions in the wastewater are removed. The scraper in the stirring assembly can prevent impurities from accumulating on the inner wall of the treatment barrel for a long time. The precipitated impurities are collected by the filtering mechanism. The entire device adopts a design that is easy to dismantle, and the entire device can be initially disassembled to facilitate cleaning of the internal structure.

[0004] A heavy metal ion wastewater treatment equipment in the above patent has the following shortcomings: the mixing and stirring of sewage and drugs is achieved through the rotation of the stirring mechanism, but the scraper is always in contact with the inner wall of the treatment barrel during the process, resulting in greater wear of the scraper, affecting the service life of the scraper. At the same time, the water outlet is set at the bottom of the filter bag, so that the treated sewage can be discharged through the filter bag, but the precipitate after the metal reaction cannot pass through the filter bag. However, a large amount of precipitate will cause the filter bag to be blocked, making the water flow slow and reducing the work efficiency. For this reason, a heavy metal ion precipitation mechanism for wastewater treatment is designed. Utility Model Content

[0005] The utility model aims to solve the shortcomings in the prior art and proposes a heavy metal ion precipitation mechanism for wastewater treatment.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A heavy metal ion precipitation mechanism for wastewater treatment, including a water tank. A tank cover is fixedly connected to the top of the water tank. A U-shaped frame is fixedly connected to the middle of the top of the tank cover. A first motor is fixedly connected to the middle of the top of the U-shaped frame. The output end of the first motor at the bottom penetrates through the U-shaped frame and is fixedly connected to a lead screw, and the bottom of the lead screw is rotatably connected to the top of the tank cover. A lifting plate is screwed on the circumferential surface of the lead screw. A lead screw nut adapted to the lead screw is fixedly sleeved on the lifting plate. Both ends of the bottom of the U-shaped frame are fixedly connected with slide bars. The bottoms of the two slide bars penetrate through the lifting plate and are fixedly connected to the top of the tank cover. Round holes adapted to the slide bars are opened on both sides of the lifting plate. The other end of the top of the lifting plate is fixedly connected with a second motor. The output end of the second motor penetrates through the lifting plate and is fixedly connected to a first rotating rod, and the bottom of the first rotating rod penetrates through the tank cover. A round hole adapted to the first rotating rod is opened on the tank cover. A plurality of stirring rods are fixedly connected to the first rotating rod inside the water tank. Two first fixing rings are fixedly connected to the bottom of the first rotating rod. A sliding ring is slidably sleeved on the circumferential surface of the first rotating rod between the two first fixing rings. Two first clamping blocks are fixedly connected to the bottom of the sliding ring. Springs are sleeved on the first rotating rod between the top of the sliding ring and the top first fixing ring. Through the setting of the springs, when the first rotating rod drives the sliding ring to descend, with the rotation of the first rotating rod, the first rotating rod can definitely drive the second rotating rod to rotate, so that the scraping plate scrapes the inner wall of the water tank. Two convex strips are fixedly connected to the circumferential surface of the first rotating rod at the two first fixing rings, and a notch adapted to the convex strips is opened on the sliding ring.

[0008] As a further scheme of the present utility model, the bottom of the water tank is conical. A bottom pipe is fixedly connected to the middle position of the bottom of the water tank. Connecting plates are fixedly connected to the two sides of the inner wall of the water tank at the top of the bottom pipe. A second rotating rod is rotatably connected to the middle position of the top of the connecting plate. The top of the second rotating rod is slidably sleeved on the bottom of the first rotating rod. A round hole adapted to the second rotating rod is opened at the bottom of the first rotating rod. A second fixing ring is fixedly connected to the circumferential surface of the second rotating rod near the top. Two second clamping blocks are fixedly connected to both ends of the top of the second fixing ring, and the second clamping blocks are adapted to the first clamping blocks.

[0009] As a further scheme of the present utility model, two scraping plates are fixedly connected to both ends of the bottom of the second rotating rod, and the scraping plates are in contact with the inside of the water tank.

[0010] As a further solution of the present utility model, a hollow filter cylinder is fixedly connected to the middle of the bottom of the connecting plate. The setting of the hollow filter cylinder allows water to pass through, but metal precipitates cannot pass through. A screwed cylinder is screwed on the outer surface of the bottom of the bottom pipe. An inner ring is fixedly connected to the inner bottom of the screwed cylinder, and the outer circumferential wall of the inner ring fits with the inner wall of the bottom pipe. A connecting ring is fixedly sleeved on the bottom of the screwed cylinder. A clamping groove is formed at the top of the connecting ring. A rubber pad is arranged inside the clamping groove, and the rubber pad is adapted to the bottom of the hollow filter cylinder.

[0011] As a further solution of the present utility model, a thin pipe is fixedly connected to the bottom of the connecting ring. A screwed cap is screwed on the bottom of the thin pipe. When the screwed cap is unscrewed, the sewage in the bottom pipe can be discharged.

[0012] As a further solution of the present utility model, a water inlet pipe is arranged at one end of the top of the box cover, and a feeding hopper is arranged at the other end of the top of the box cover.

[0013] As a further solution of the present utility model, a drain pipe is arranged at one end of the bottom of the water tank, and a control valve is fixedly installed on the drain pipe.

[0014] The beneficial effects of the present utility model are as follows:

[0015] In the present utility model: Due to the adoption of technical means such as the second rotating rod, the scraping plate, the first fixing ring, the spring, the sliding ring, the first clamping block, the second fixing ring and the second clamping block, when the inside of the water tank does not need to be cleaned, the second motor drives the first rotating rod to rotate, so that the stirring rod stirs. When it is necessary to clean the inside of the water tank, the first motor is used to lower the first rotating rod, so that the second fixing ring is driven to rotate through the sliding ring, and the second rotating rod drives the scraping plate to rotate, effectively solving the problem in the background technology that the scraping plate is in long-term contact with the inner wall of the water tank, resulting in serious wear and reduced service life. Furthermore, it realizes the function of being able to select in real time whether it is necessary to clean the inner wall of the water tank according to the usage situation, improves the practicability of the mechanism, prolongs the service life of the scraping plate, and reduces the maintenance cost.

[0016] In the present utility model: Through the setting of the hollow filter cylinder, the screwed cylinder, the inner ring, the connecting ring, the rubber pad, the thin pipe and the screwed cap, the sewage inside the water tank is discharged through the drain pipe, and then by opening the screwed cap, the remaining small amount of sewage is discharged. Unscrew the screwed cylinder, and the precipitates of the metal reaction can be cleaned out. Furthermore, it is ensured that the drain pipe will not be blocked by the precipitates after the metal reaction, resulting in a decrease in the drainage speed, and the working efficiency is guaranteed. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of an overall heavy metal ion precipitation mechanism for wastewater treatment proposed by the present utility model;

[0018] Figure 2 Schematic structural view of the cross-section of the water tank of a heavy metal ion precipitation mechanism for wastewater treatment proposed by the present utility model;

[0019] Figure 3 A heavy metal ion precipitation mechanism for wastewater treatment proposed by the present utility model Figure 2 Schematic enlarged structural view of part A;

[0020] Figure 4 A heavy metal ion precipitation mechanism for wastewater treatment proposed by the present utility model Figure 2 Schematic enlarged structural view of part B;

[0021] Figure 5 Schematic partial internal structural view of the water tank of a heavy metal ion precipitation mechanism for wastewater treatment proposed by the present utility model;

[0022] Figure 6 Of a heavy metal ion precipitation mechanism for wastewater treatment proposed by the present utility model Figure 5 Schematic enlarged structural view of part C;

[0023] Figure 7 Schematic cross-sectional structural view of the screwed cylinder of a heavy metal ion precipitation mechanism for wastewater treatment proposed by the present utility model.

[0024] In the figure: 1. Water tank; 101. Bottom pipe; 102. Drain pipe; 103. Control valve; 2. Tank cover; 201. Water inlet pipe; 202. Feeding hopper; 3. First rotating rod; 301. Stirring rod; 4. U-shaped frame; 401. Slide bar; 402. Lead screw; 403. First motor; 404. Lifting plate; 405. Second motor; 6. Connecting plate; 7. Second rotating rod; 701. Scraper; 8. First fixing ring; 9. Spring; 10. Sliding ring; 1001. First clamping block; 11. Second fixing ring; 1101. Second clamping block; 12. Hollow filter cylinder; 13. Screwed cylinder; 1301. Inner ring; 14. Connecting ring; 15. Rubber pad; 16. Thin pipe; 17. Screwed cap. Detailed implementation manners

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments.

[0026] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. Next, the present utility model will be described in detail with reference to the drawings and in conjunction with the embodiments.

[0027] Refer to Figures 1 - 7, A heavy metal ion precipitation mechanism for wastewater treatment, including a water tank 1. A tank cover 2 is fixedly connected to the top of the water tank 1. A U-shaped frame 4 is fixedly connected to the middle of the top of the tank cover 2. A first motor 403 is fixedly connected to the middle of the top of the U-shaped frame 4. The output end of the first motor 403 penetrates through the U-shaped frame 4 and is fixedly connected to a lead screw 402. The bottom of the lead screw 402 is rotatably connected to the top of the tank cover 2. A lifting plate 404 is screwed on the circumferential surface of the lead screw 402. A lead screw nut adapted to the lead screw 402 is fixedly sleeved on the lifting plate 404. Both ends of the bottom of the U-shaped frame 4 are fixedly connected with slide bars 401. The bottoms of the two slide bars 401 penetrate through the lifting plate 404 and are fixedly connected to the top of the tank cover 2. By the forward and reverse rotation of the first motor 403, the first rotating rod 3 is lifted and lowered. Circular holes adapted to the slide bars 401 are opened on both sides of the lifting plate 404. A second motor 405 is fixedly connected to the other end of the top of the lifting plate 404. The output end of the second motor 405 penetrates through the lifting plate 404 and is fixedly connected to a first rotating rod 3. The bottom of the first rotating rod 3 penetrates through the tank cover 2. A circular hole adapted to the first rotating rod 3 is opened on the tank cover 2. A plurality of stirring rods 301 are fixedly connected to the part of the first rotating rod 3 inside the water tank 1. Two first fixing rings 8 are fixedly connected to the bottom of the first rotating rod 3. A sliding ring 10 is slidably sleeved on the circumferential surface of the first rotating rod 3 between the two first fixing rings 8. Two first clamping blocks 1001 are fixedly connected to the bottom of the sliding ring 10. Springs 9 are sleeved on the first rotating rod 3 between the top of the sliding ring 10 and the top first fixing ring 8. Two convex strips are fixedly connected to the circumferential surface of the first rotating rod 3 at the two first fixing rings 8. A notch adapted to the convex strips is opened on the sliding ring 10. The setting of the convex strips enables the sliding ring 10 to rotate with the first rotating rod 3.

[0028] In this embodiment, the bottom of the water tank 1 is conical. A bottom pipe 101 is fixedly connected to the middle position of the bottom of the water tank 1. Connecting plates 6 are fixedly connected to both sides of the inner wall of the water tank 1 at the top of the bottom pipe 101. A second rotating rod 7 is rotatably connected to the middle position of the top of the connecting plate 6. The top of the second rotating rod 7 is slidably sleeved on the bottom of the first rotating rod 3. A circular hole adapted to the second rotating rod 7 is opened at the bottom of the first rotating rod 3. A second fixing ring 11 is fixedly connected to the circumferential surface of the second rotating rod 7 near the top. Two second clamping blocks 1101 are fixedly connected to both ends of the top of the second fixing ring 11. The second clamping blocks 1101 are adapted to the first clamping blocks 1001.

[0029] In this embodiment, scraping plates 701 are fixedly connected to both ends of the bottom of the second rotating rod 7, and the scraping plates 701 are in contact with the inside of the water tank 1.

[0030] In this embodiment, a hollow filter cylinder 12 is fixedly connected to the middle of the bottom of the connecting plate 6. A screw connection cylinder 13 is screwed on the outer surface of the bottom of the bottom pipe 101. An inner ring 1301 is fixedly connected to the inner bottom of the screw connection cylinder 13, and the outer circumferential wall of the inner ring 1301 is in fit with the inner wall of the bottom pipe 101. A connection ring 14 is fixedly sleeved on the bottom of the screw connection cylinder 13. A clamping groove is formed at the top of the connection ring 14. A rubber pad 15 is arranged inside the clamping groove, and the rubber pad 15 is adapted to the bottom of the hollow filter cylinder 12. The rubber pad 15 makes the bottom of the hollow filter cylinder 12 closely adhere to the rubber pad 15, and the sediment will not leak out from the thin pipe 16.

[0031] In this embodiment, a thin pipe 16 is fixedly connected to the bottom of the connection ring 14. A screw connection cover 17 is screwed on the bottom of the thin pipe 16. By disassembling the screw connection cover 17, the remaining water inside the bottom pipe 101 can be discharged, which is convenient for subsequent treatment of the sediment.

[0032] In this embodiment, a water inlet pipe 201 is arranged at one end of the top of the box cover 2, and a feeding hopper 202 is arranged at the other end of the top of the box cover 2.

[0033] In this embodiment, a drain pipe 102 is arranged at one end of the bottom of the water tank 1, and a control valve 103 is fixedly installed on the drain pipe 102.

[0034] Working principle: When in use, the sewage after filtering out impurity particles is added into the interior of the water tank 1 through the water inlet pipe 201, and an appropriate amount of medicine that can form a precipitate with heavy metals is added through the feeding hopper 202. The second motor 405 is started, so that the first rotating rod 3 drives a plurality of stirring rods 301 to stir the mixture of sewage and medicine, facilitating the rapid reaction between the medicine and metal ions. After waiting for the reaction to end, the second motor 405 is turned off, and the generated substances are allowed to stand and precipitate. Due to the conical setting at the bottom of the water tank 1, the metal ion precipitate enters the bottom pipe 101. At this time, the control valve 103 is opened, so that the treated sewage is discharged through the drain pipe 102. When the sewage at the top of the drain pipe 102 is drained, the screw cap 17 is unscrewed, so that the remaining sewage inside the bottom pipe 101 is discharged. Through the filtration of the hollow filter cylinder 12, the metal ion precipitate will not be discharged and is retained inside the inner ring 1301. When the remaining water is drained, the screw cylinder 13 is unscrewed, and the precipitate after the reaction of metal ions inside the inner ring 1301 can be collected and processed. When substances produced by the reaction adhere to the interior of the water tank 1, the first motor 403 is started, so that the lifting plate 404 drives the second motor 405 and the first rotating rod 3 to descend, causing the sliding ring 10 to descend. When the sliding ring 10 contacts the second fixed ring 11, when the first clamping block 1001 and the second clamping block 1101 are staggered from each other, when the first rotating rod 3 rotates, it can drive the second rotating rod 7 and the scraper 701 to rotate, realizing scraping inside the water tank 1. When the first clamping block 1001 and the second clamping block 1101 are not staggered, the spring 9 will be compressed, but when the first rotating rod 3 rotates, under the action of the spring 9, the first clamping block 1001 of the sliding ring 10 will still be misaligned with the second clamping block 1101, thereby driving the second rotating rod 7 to rotate, and further realizing the cleaning of the interior of the water tank 1.

[0035] For the sake of convenience in description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "upper" etc. can be used here to describe the spatial position relationship between a device or feature shown in the figure and other devices or features. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the device described in the figure. For example, if the device in the attached drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will be positioned as "below other devices or structures" or "under other devices or structures" afterwards. Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding explanations are made for the spatial relative descriptions used here.

[0036] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0037] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A heavy metal ion precipitation mechanism for wastewater treatment, comprising a water tank (1), characterized in that, A lid (2) is fixedly connected to the top of the water tank (1). A U-shaped frame (4) is fixedly connected to the top of the lid (2) near the middle. A first motor (403) is fixedly connected to the middle of the top of the U-shaped frame (4). The output end of the first motor (403) penetrates through the U-shaped frame (4) and is fixedly connected to a lead screw (402), and the bottom of the lead screw (402) is rotatably connected to the top of the lid (2). A lifting plate (404) is screwed onto the circumferential surface of the lead screw (402). A lead screw nut adapted to the lead screw (402) is fixedly sleeved on the lifting plate (404). Both ends of the bottom of the U-shaped frame (4) are fixedly connected with sliding rods (401). The bottoms of the two sliding rods (401) penetrate through the lifting plate (404) and are fixedly connected to the top of the lid (2). Round holes adapted to the sliding rods (401) are opened on both sides of the lifting plate (404). The other end of the top of the lifting plate (404) is fixedly connected with a second motor (405). The output end of the second motor (405) penetrates through the lifting plate (404) and is fixedly connected to a first rotating rod (3), and the bottom of the first rotating rod (3) penetrates through the lid (2). A round hole adapted to the first rotating rod (3) is opened on the lid (2). A plurality of stirring rods (301) are fixedly connected to the first rotating rod (3) inside the water tank (1). Two first fixing rings (8) are fixedly connected to the bottom of the first rotating rod (3). A sliding ring (10) is slidably sleeved on the circumferential surface of the first rotating rod (3) between the two first fixing rings (8). Two first clamping blocks (1001) are fixedly connected to the bottom of the sliding ring (10). Springs (9) are sleeved between the top of the sliding ring (10) and the first fixing rings (8) at the top and bottom of the first rotating rod (3). Two protrusions are fixedly connected to the circumferential surface of the first rotating rod (3) at the two first fixing rings (8), and notches adapted to the protrusions are opened on the sliding ring (10).

2. The heavy metal ion precipitation mechanism for wastewater treatment according to claim 1, characterized in that, The bottom of the water tank (1) is tapered. A bottom pipe (101) is fixedly connected to the middle position of the bottom of the water tank (1). Connecting plates (6) are fixedly connected to both sides of the inner wall of the water tank (1) at the top of the bottom pipe (101). A second rotating rod (7) is rotatably connected to the middle position of the top of the connecting plate (6). The top of the second rotating rod (7) is slidably sleeved on the bottom of the first rotating rod (3). A round hole adapted to the second rotating rod (7) is opened at the bottom of the first rotating rod (3). A second fixing ring (11) is fixedly connected to the circumferential surface of the second rotating rod (7) near the top. Two second clamping blocks (1101) are fixedly connected to both ends of the top of the second fixing ring (11), and the second clamping blocks (1101) are adapted to the first clamping blocks (1001).

3. The heavy metal ion precipitation mechanism for wastewater treatment according to claim 2, wherein, Both ends of the bottom of the second rotating rod (7) are fixedly connected with scraping plates (701), and the scraping plates (701) are in contact with the inside of the water tank (1).

4. The heavy metal ion precipitation mechanism for wastewater treatment according to claim 3, characterized in that, A hollow filter cylinder (12) is fixedly connected to the middle of the bottom of the connecting plate (6). A screw connection cylinder (13) is screwed on the outer surface of the bottom of the bottom pipe (101). An inner ring (1301) is fixedly connected to the inner bottom of the screw connection cylinder (13), and the circumferential outer wall of the inner ring (1301) fits with the inner wall of the bottom pipe (101). A connection ring (14) is fixedly sleeved on the bottom of the screw connection cylinder (13). A clamping groove is formed at the top of the connection ring (14), and a rubber pad (15) is arranged inside the clamping groove, and the rubber pad (15) is adapted to the bottom of the hollow filter cylinder (12).

5. The heavy metal ion precipitation mechanism for wastewater treatment according to claim 4, characterized in that, A thin pipe (16) is fixedly connected to the bottom of the connection ring (14), and a screw connection cover (17) is screwed on the bottom of the thin pipe (16).

6. The heavy metal ion precipitation mechanism for wastewater treatment according to claim 1, characterized in that, A water inlet pipe (201) is arranged at one end of the top of the box cover (2), and a feeding hopper (202) is arranged at the other end of the top of the box cover (2).

7. The heavy metal ion precipitation mechanism for wastewater treatment according to claim 1, characterized in that, A drain pipe (102) is arranged at one end of the bottom of the water tank (1), and a control valve (103) is fixedly installed on the drain pipe (102).

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