Heavy metal-containing comprehensive wastewater treatment device

Abstract

The utility model discloses a heavy-metal-containing comprehensive wastewater treatment device, which belongs to the field of wastewater treatment and comprises a settling barrel and a filter barrel, a settling mechanism is arranged in an inner cavity of the settling barrel, and a filter mechanism is arranged in an inner cavity of the filter barrel. The motor is started to drive the rotating rod and the stirring rod to rotate to fully stir and mix wastewater and a precipitant in the precipitation barrel, complete reaction between the wastewater and the precipitant is ensured, the stirring rod rotates to drive the scraper to rotate to scrape the inner wall of the precipitation barrel, and the situation that impurities and precipitates are attached to the inner wall of the precipitation barrel and are difficult to clean is avoided.

Description

Technical Field

[0001] The utility model relates to the field of wastewater treatment, and more specifically to a comprehensive wastewater treatment device containing heavy metals. Background Art

[0002] Comprehensive wastewater containing heavy metals refers to wastewater containing multiple heavy metal ions generated in industrial production or other activities. Since heavy metals are highly toxic, cumulative and long-lasting, they will cause long-term damage to the aquatic ecosystem. In order to protect the ecological environment and promote the recycling of resources, it is necessary to treat the wastewater, remove harmful substances, ensure the safety of water resources, and realize the recycling of resources.

[0003] When treating wastewater, it will first be introduced into the equalization tank for pretreatment, and then chemical precipitation will be used to convert the heavy metals in the wastewater into a solid form that is easy to separate, so as to facilitate subsequent filtration and reprocessing. Suspended matter and incompletely precipitated heavy metal particles will be further removed by filtration to improve the effluent quality. Wastewater that meets the treatment standards can be directly discharged or recycled in the production process as needed.

[0004] In the actual use of the prior art, wastewater is filtered to remove suspended matter and heavy metal particles. Since the pores on the filter layer will gradually be clogged by impurities over time, resulting in a decrease in its filtration efficiency, a comprehensive wastewater treatment device containing heavy metals is now proposed. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the problems existing in the prior art, the utility model provides a comprehensive wastewater treatment device containing heavy metals. It starts the motor to drive the rotating rod and the stirring rod to rotate to fully stir and mix the wastewater and the precipitant in the sedimentation barrel, ensuring that the wastewater and the precipitant react completely. When the stirring rod rotates, it drives the scraper to rotate to scrape the inner wall of the sedimentation barrel, preventing impurities and sediments from adhering to the inner wall of the sedimentation barrel and being difficult to clean.

[0007] 2. Technical solution

[0008] To solve the above problems, the utility model adopts the following technical solutions.

[0009] A comprehensive wastewater treatment device containing heavy metals comprises a sedimentation barrel and a filter barrel, wherein the inner cavity of the sedimentation barrel is provided with a sedimentation mechanism, and the inner cavity of the filter barrel is provided with a filtering mechanism; the sedimentation mechanism comprises a rotating rod rotatably connected to the inner cavity of the sedimentation barrel, the outer surface of the rotating rod is fixedly connected to a stirring rod, one end of the stirring rod is fixedly connected to a scraper, and the lower surface of the sedimentation barrel is connected to a sewage pipe; the filtering mechanism comprises a delivery pipe connected to the outer surface of the sewage pipe, one end of the delivery pipe is connected to a barrel cover, a pump is provided in the inner cavity of the delivery pipe, two vertical grooves are symmetrically opened in the inner cavity of the filter barrel, the inner cavity of the filter barrel is opened with a horizontal groove, and the inner cavity of the filter barrel is movably connected with a filtering layer.

[0010] Furthermore, the lower surfaces of the sedimentation barrel and the filter barrel are fixedly connected with support legs, the upper surface of the sedimentation barrel is connected with a feed pipe, the upper surface of the sedimentation barrel is fixedly connected with a motor, and the output shaft end of the motor is fixedly connected to the rotating rod.

[0011] Furthermore, the outer surface of the scraper is in contact with the inner wall of the sedimentation barrel, and a valve is provided in the inner cavity of the sewage pipe.

[0012] Furthermore, a filter screen is fixedly connected to the inner cavity of one end of the delivery pipe close to the sewage pipe, the barrel cover is movably connected to the filter barrel, and a limiting block is interspersed in the inner cavity of the barrel cover.

[0013] Furthermore, a movable plate is fixedly connected to one side of the limit block, two telescopic rods are fixedly connected to one side of the movable plate, a spring is sleeved on the outer surface of the telescopic rod, and two ends of the spring are respectively fixedly connected to the filter barrel and the movable plate.

[0014] Furthermore, two connection blocks are symmetrically fixedly connected to the outer surface of the filter layer, and the connection blocks move in the horizontal groove and the vertical groove respectively. The lower surface of the filter barrel is connected to a discharge pipe, and a second valve is provided in the inner cavity of the discharge pipe.

[0015] 3. Beneficial effects

[0016] Compared with the prior art, the advantages of the present invention are:

[0017] (1) This solution pulls the movable plate and the spring outward to drive the limit block to move outward and away from the inner cavity of the barrel cover. At this time, the barrel cover loses its fixed limit and can be opened. Then the operator manually rotates the filter layer to drive the connecting block to rotate in the horizontal groove. When the connecting block rotates to the vertical groove, the filter layer can be taken out from the vertical groove upward to be cleaned and replaced, thereby preventing the pores on the filter layer from being gradually blocked by impurities over time, resulting in reduced filtration efficiency, and further improving the convenience and practicality of the device when used.

[0018] (2) This solution starts the motor to drive the rotating rod and the stirring rod to rotate, so as to fully stir and mix the wastewater and the precipitant in the sedimentation barrel, thereby ensuring that the wastewater and the precipitant react completely. When the stirring rod rotates, it will drive the scraper to rotate and scrape the inner wall of the sedimentation barrel, thereby preventing impurities and sediment from adhering to the inner wall of the sedimentation barrel and being difficult to clean. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 This is a half-section schematic diagram of the internal structure of the utility model;

[0021] Figure 3 This is a schematic diagram of the partial structure of the utility model;

[0022] Figure 4 It is a schematic diagram of the local structure of the utility model.

[0023] Description of the numbers in the figure:

[0024] 1. Sedimentation barrel; 101. Filter barrel; 102. Support leg; 2. Sedimentation mechanism; 201. Motor; 202. Feed pipe; 203. Rotating rod; 204. Stirring rod; 205. Scraper; 206. Drain pipe; 207. Valve 1; 3. Filter mechanism; 301. Delivery pipe; 302. Filter screen; 303. Pump; 304. Barrel cover; 305. Limit block; 306. Moving plate; 307. Telescopic rod; 308. Spring; 309. Discharge pipe; 310. Valve 2; 311. Vertical slot; 312. Horizontal slot; 313. Filter layer; 314. Connecting block. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model; it is obvious that the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the utility model without making creative work are within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0028] Example 1

[0029] Reference Figure 1 and Figure 2 , which is the first embodiment of the utility model, and provides a comprehensive wastewater treatment device containing heavy metals, including a sedimentation barrel 1 and a filter barrel 101, wherein the inner cavity of the sedimentation barrel 1 is provided with a sedimentation mechanism 2, including a rotating rod 203 rotatably connected to the inner cavity of the sedimentation barrel 1, and the outer surface of the rotating rod 203 is fixedly connected with a stirring rod 204, and one end of the stirring rod 204 is fixedly connected with a scraper 205, and the lower surface of the sedimentation barrel 1 is connected with a sewage pipe 206;

[0030] Specifically, the lower surfaces of the sedimentation barrel 1 and the filter barrel 101 are fixedly connected with support legs 102, the upper surface of the sedimentation barrel 1 is connected with a feed pipe 202, the upper surface of the sedimentation barrel 1 is fixedly connected with a motor 201, the output shaft end of the motor 201 is fixedly connected with a rotating rod 203, the outer surface of the scraper 205 abuts against the inner wall of the sedimentation barrel 1, and the inner cavity of the sewage pipe 206 is provided with a valve 207;

[0031] Further, the wastewater to be treated is fed into the sedimentation barrel 1 through the feed pipe 202. After the wastewater is fed, a sulfide precipitant is added to the sedimentation barrel 1 according to a specified ratio, so that the heavy metal ions in the wastewater form sulfide precipitates with lower solubility, which is convenient for separation. The motor 201 is started to drive the rotating rod 203 and the stirring rod 204 to rotate, so that the wastewater and the precipitant in the sedimentation barrel 1 are fully stirred and mixed to ensure that the wastewater and the precipitant react completely. When the stirring rod 204 rotates, it will drive the scraper 205 to rotate and scrape the inner wall of the sedimentation barrel 1 to prevent impurities and precipitates from adhering to the inner wall of the sedimentation barrel 1 and being difficult to clean. After mixing and precipitating, the wastewater naturally settles in the sedimentation barrel 1, and the solid and liquid are separated by gravity separation. The solid precipitate at the bottom of the sedimentation barrel 1 can be discharged from the sewage pipe 206 by opening the valve 1 207.

[0032] Example 2

[0033] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 , which is the second embodiment of the utility model. This embodiment is based on the previous embodiment. The inner cavity of the filter barrel 101 is provided with a filtering mechanism 3, including a delivery pipe 301 connected to the outer surface of the sewage pipe 206, one end of the delivery pipe 301 is connected to a barrel cover 304, and the inner cavity of the delivery pipe 301 is provided with a pump 303. The inner cavity of the filter barrel 101 is symmetrically provided with two vertical grooves 311, and the inner cavity of the filter barrel 101 is provided with a horizontal groove 312. The inner cavity of the filter barrel 101 is movably connected with a filter layer 313;

[0034] Specifically, a filter screen 302 is fixedly connected to the inner cavity of one end of the delivery pipe 301 close to the sewage pipe 206, a barrel cover 304 is movably connected to the filter barrel 101, a limit block 305 is inserted into the inner cavity of the barrel cover 304, a movable plate 306 is fixedly connected to one side of the limit block 305, two telescopic rods 307 are fixedly connected to one side of the movable plate 306, a spring 308 is sleeved on the outer surface of the telescopic rod 307, two ends of the spring 308 are respectively fixedly connected to the filter barrel 101 and the movable plate 306, a movable plate 306 is fixedly connected to one side of the limit block 305, two telescopic rods 307 are fixedly connected to one side of the movable plate 306, a spring 308 is sleeved on the outer surface of the telescopic rod 307, and two ends of the spring 308 are respectively fixedly connected to the filter barrel 101 and the movable plate 306;

[0035] Further, the pump 303 is started to pump the wastewater that has undergone preliminary sedimentation treatment in the sedimentation barrel 1 into the filter barrel 101 through the delivery pipe 301. When passing through the delivery pipe 301, the wastewater automatically passes through the filter screen 302 to filter out the solid sediment remaining in the wastewater. When the wastewater enters the filter barrel 101, it is filtered multiple times through the three-layer filter layer 313, and then the valve 2 310 is opened to discharge the filtered wastewater through the discharge pipe 309. When it is necessary to clean or replace the filter layer 313, the operator can pull the movable plate 306 and the spring 308 outward to drive the limit block 305 to move outward and away from the inner cavity of the barrel cover 304. At this time, the barrel cover 304 loses its fixed limit and can be opened. Then the operator manually rotates the filter layer 313 to drive the connecting block 314 to rotate in the horizontal groove 312. When the connecting block 314 rotates to the vertical groove 311, the filter layer 313 can be taken out upward from the vertical groove 311.

[0036] Working principle: During the use of the device, the operator places the sedimentation barrel 1 and the filter barrel 101 at the designated location for wastewater treatment through the support legs 102, and then feeds the wastewater to be treated into the sedimentation barrel 1 through the feed pipe 202. After the wastewater is fed, the sulfide precipitant is added to the sedimentation barrel 1 according to the specified ratio, so that the heavy metal ions in the wastewater form sulfide precipitates with lower solubility, which is convenient for separation. The motor 201 is started to drive the rotating rod 203 and the stirring rod 204 to rotate to fully precipitate the wastewater and the precipitant in the sedimentation barrel 1. Stirring and mixing ensures that the wastewater and the precipitant react completely. When the stirring rod 204 rotates, it drives the scraper 205 to rotate and scrape the inner wall of the sedimentation barrel 1 to prevent impurities and sediments from adhering to the inner wall of the sedimentation barrel 1 and being difficult to clean. The mixed and precipitated wastewater is naturally settled in the sedimentation barrel 1, and the solid and liquid are separated by gravity separation. The solid sediments settled at the bottom of the sedimentation barrel 1 can be discharged from the sewage pipe 206 by opening the valve 207, and then the pump 303 is started to pump the wastewater that has undergone preliminary sedimentation treatment in the sedimentation barrel 1 through the delivery pipe 301. When the wastewater passes through the conveying pipe 301, it automatically passes through the filter screen 302 to filter out the solid sediments remaining in the wastewater. When the wastewater enters the filter barrel 101, it passes through the three-layer filter layer 313 for multiple filtrations to further remove the fine suspended solids and some heavy metal particles that have not been completely precipitated in the water, ensuring that the water outlet is clear. Then open the valve 2 310 to discharge the filtered wastewater through the discharge pipe 309. When it is necessary to clean or replace the filter layer 313, the operator can pull the movable plate 306 and the spring 313 outward. 08 drives the limit block 305 to move outward and away from the inner cavity of the barrel cover 304. At this time, the barrel cover 304 loses its fixed limit and can be opened. Then the operator manually rotates the filter layer 313 to drive the connecting block 314 to rotate in the horizontal groove 312. When the connecting block 314 rotates to the vertical groove 311, the filter layer 313 can be taken out upward from the vertical groove 311 to be cleaned and replaced, so as to avoid the pores on the filter layer 313 being gradually blocked by impurities over time, resulting in reduced filtration efficiency, thereby further improving the convenience and practicality of the device when used.

[0037] The above is only a preferred specific implementation of the utility model; however, the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and improved ideas of the utility model within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model.

Claims

1. A comprehensive wastewater treatment device containing heavy metals, comprising a sedimentation tank (1) and a filter tank (101), characterized in that: The inner cavity of the sedimentation barrel (1) is provided with a sedimentation mechanism (2), and the inner cavity of the filtering barrel (101) is provided with a filtering mechanism (3); The sedimentation mechanism (2) comprises a rotating rod (203) rotatably connected to the inner cavity of the sedimentation barrel (1), the outer surface of the rotating rod (203) is fixedly connected to a stirring rod (204), one end of the stirring rod (204) is fixedly connected to a scraper (205), and the lower surface of the sedimentation barrel (1) is connected to a sewage discharge pipe (206); The filtering mechanism (3) comprises a delivery pipe (301) connected to the outer surface of the sewage discharge pipe (206), one end of the delivery pipe (301) being connected to a barrel cover (304), a pump (303) being arranged in the inner cavity of the delivery pipe (301), two vertical grooves (311) being symmetrically arranged in the inner cavity of the filter barrel (101), a horizontal groove (312) being arranged in the inner cavity of each filter barrel (101), and a filter layer (313) being movably connected in the inner cavity of each filter barrel (101).

2. A comprehensive heavy metal wastewater treatment device according to claim 1, characterized in that: The lower surfaces of the sedimentation barrel (1) and the filter barrel (101) are both fixedly connected to support legs (102), the upper surface of the sedimentation barrel (1) is connected to a feed pipe (202), the upper surface of the sedimentation barrel (1) is fixedly connected to a motor (201), and the output shaft end of the motor (201) is fixedly connected to a rotating rod (203).

3. A comprehensive heavy metal wastewater treatment device according to claim 1, characterized in that: The outer surface of the scraper (205) is in contact with the inner wall of the sedimentation barrel (1), and the inner cavity of the sewage discharge pipe (206) is provided with a valve 1 (207).

4. The device for treating heavy metal-containing wastewater according to claim 1, characterized in that: The inner cavity of one end of the delivery pipe (301) close to the sewage pipe (206) is fixedly connected with a filter screen (302), the barrel cover (304) is movably connected to the filter barrel (101), and a limit block (305) is inserted into the inner cavity of the barrel cover (304).

5. A comprehensive heavy metal-containing wastewater treatment device according to claim 4, characterized in that: One side of the limit block (305) is fixedly connected to a movable plate (306), and one side of the movable plate (306) is fixedly connected to two telescopic rods (307). The outer surface of the telescopic rod (307) is sleeved with a spring (308), and the two ends of the spring (308) are respectively fixedly connected to the filter barrel (101) and the movable plate (306).

6. The device for treating heavy metal-containing wastewater according to claim 1, characterized in that: The outer surface of the filter layer (313) is symmetrically and fixedly connected with two connection blocks (314), and the connection blocks (314) move in the horizontal groove (312) and the vertical groove (311) respectively. The lower surface of the filter barrel (101) is connected with a discharge pipe (309), and the inner cavity of the discharge pipe (309) is provided with a second valve (310).

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