Zinc plating wastewater recovery treatment device

Abstract

The utility model relates to the technical field of wastewater treatment, and discloses a zinc plating wastewater recovery treatment device which comprises a mixing pool, a rotating rod and a rotating pipe, the rotating rod and the rotating pipe are transversely and rotatably installed on the two sides in the mixing pool respectively, the rotating rod and the rotating pipe are located in the middle positions of the two sides in the mixing pool respectively, and a ring rod is fixed to the outer ring of the rotating rod through a connecting rod. An annular pipe is fixed to the outer circle of the rotating pipe through a connecting pipe, four transverse pipes are transversely and evenly connected between the annular rod and the annular pipe, a plurality of spray heads communicated with the interiors of the transverse pipes are evenly arranged on the surfaces of the inner sides and the outer sides of the transverse pipes, and the spray heads obliquely face one side of the annular rod. According to the technical scheme, the horizontal pipe driven to rotate is arranged in the mixing tank, the zinc plating wastewater can be stirred, and a precipitant is introduced into the horizontal pipe to act towards the left side opposite to the wastewater, so that the precipitant and the wastewater can be better mixed and react; the mixing efficiency is better; the precipitation is sufficient; and the waste of the precipitant is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a galvanizing wastewater recovery and treatment device. Background Art

[0002] Galvanizing refers to a surface treatment technology that coats a layer of zinc on the surface of metals, alloys or other materials for aesthetic purposes and to prevent rust. The main methods used are hot-dip galvanizing and electro-galvanizing. The pollution components of electro-galvanizing are very complex, mainly coming from the wastewater before the treatment of galvanized products, the wastewater after cleaning the surface galvanized layer, and the waste liquid generated during the electro-galvanizing process. Since these liquids mainly contain heavy polluting metal elements such as chromium, copper, nickel, and zinc, if they are discharged without strict treatment, it will have a great impact on the environment.

[0003] The existing technology mainly adds precipitants to make the metal ions in the wastewater react and precipitate, and then enters the sedimentation tank for precipitation and separation. When the precipitant is added, the mixing speed between the precipitant and the wastewater is slow, which easily leads to waste of precipitant or insufficient precipitation. Therefore, we propose a galvanizing wastewater recovery and treatment device. Utility Model Content

[0004] The utility model aims to provide a galvanizing wastewater recovery and treatment device. A horizontal pipe driven to rotate is arranged inside a mixing tank, which can stir the galvanizing wastewater. A precipitant is introduced into the horizontal pipe to the left side facing the wastewater, so that the precipitant and the wastewater can be better mixed and reacted. The mixing efficiency is better, the precipitation is sufficient and the waste of the precipitant is reduced, thereby solving the problems raised in the background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a galvanized wastewater recovery and treatment device, comprising a mixing tank, a rotating rod and a rotating tube, the rotating rod and the rotating tube are respectively installed on both sides of the interior of the mixing tank in a transversely rotatable manner, and the rotating rod and the rotating tube are respectively located in the middle positions of the two sides of the interior of the mixing tank; the outer ring of the rotating rod is fixed with a ring rod through a connecting rod, and the outer ring of the rotating tube is fixed with a ring tube through a connecting tube, and the connecting tube connects the ring tube and the rotating tube, and four transverse tubes are evenly connected between the ring rod and the ring tube, and the transverse tubes are connected to the ring tubes, and a plurality of nozzles connected to the inside of the transverse tubes are evenly arranged on the inner and outer surfaces of the transverse tubes, and the nozzles are inclined toward one side of the ring rod.

[0006] By adopting the above technical scheme, the galvanizing wastewater enters from the left side and flows to the right side. The precipitant enters the rotating pipe and the ring pipe through the rotating joint, and then enters the horizontal pipe and is sprayed to the left side from the nozzle, acting in the opposite direction to the wastewater flowing to the right side and being stirred by the rotation of the horizontal pipe, so that the precipitant and the wastewater can be mixed and reacted better.

[0007] Optionally, the end of the rotating tube can be rotatably passed through the outside of the mixing tank, and the end of the rotating tube is connected to a rotating joint.

[0008] By adopting the above technical solution, the supply pipe of the sedimentation tank is connected to the rotating pipe through the rotating joint, and the rotating pipe can maintain communication with the supply pipe of the sedimentation tank when rotating.

[0009] Optionally, a motor is installed on the outer surface of the mixing pool at the end of the rotating rod, and the motor is transmission-connected to the rotating rod.

[0010] By adopting the above technical solution, the motor drives the rotating rod to rotate, thereby driving the ring rod, the cross tube, the ring tube and the rotating tube and other structures to rotate.

[0011] Optionally, the rotating rod and the rotating tube are rotatably connected to the inner wall of the mixing tank via bearings, and the bearings are embedded in the inner wall of the mixing tank.

[0012] Optionally, a water inlet pipe is connected to the lower side of the mixing pool on one side of the ring rod, and the water inlet pipe is connected to the inside of the mixing pool.

[0013] By adopting the above technical solution, the galvanizing wastewater enters the interior of the mixing tank through the water inlet pipe.

[0014] Optionally, a water outlet pipe is connected above the side of the mixing pool on one side of the ring pipe, and the water outlet pipe is connected to the inside of the mixing pool.

[0015] By adopting the above technical solution, the wastewater after the mixing reaction is discharged to the outside through the outlet pipe.

[0016] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0017] 1. The technical solution of the present application is to provide a rotating horizontal pipe inside the mixing tank, which can stir the galvanizing wastewater, and the precipitant is introduced into the horizontal pipe to the left side facing the wastewater, so that the precipitant and the wastewater can be better mixed and reacted, and the mixing efficiency is better to make the precipitation sufficient and reduce the waste of the precipitant.

[0018] 2. The technical solution of the present application connects the end of the rotating tube with a rotating joint connected to the interior thereof, and connects the rotating tube to the supply pipeline of the precipitant through the rotating joint, thereby ensuring that the precipitant can be normally introduced into the rotating tube and the ring tube when the rotating tube rotates. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Other features, objects and advantages of the present invention will become more apparent by reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of the galvanizing wastewater recovery and treatment device of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the mixing tank of the galvanizing wastewater recovery and treatment device of the utility model.

[0022] In the figure: 1, mixing tank; 11, water inlet pipe; 12, water outlet pipe; 2, rotating rod; 21, ring rod; 211, connecting rod; 22, motor; 3, rotating pipe; 31, ring pipe; 311, connecting pipe; 32, rotating joint; 4, horizontal pipe; 41, nozzle. DETAILED DESCRIPTION

[0023] See also Figure 1-2 The utility model provides a technical solution: a galvanizing wastewater recovery and treatment device, comprising a mixing tank 1, a rotating rod 2 and a rotating pipe 3. An inlet pipe 11 is horizontally connected to the lower left side of the mixing tank 1. The inlet pipe 11 is communicated with the interior of the mixing tank 1, so that the inlet pipe 11 is connected to the galvanizing wastewater supply pipe through a joint, and enters the interior of the sedimentation tank from the inlet pipe 11. An outlet pipe 12 is horizontally connected to the upper right side of the mixing tank 1. The outlet pipe 12 is connected to the sedimentation tank through a joint. The galvanizing wastewater that fully reacts with the precipitant is discharged from the outlet pipe 12 and enters the sedimentation tank.

[0024] The rotating rod 2 and the rotating tube 3 are respectively installed laterally and rotatably on the left and right sides of the mixing pool 1. The rotating rod 2 and the rotating tube 3 are respectively located in the middle position of the left and right sides of the mixing pool 1. The rotating rod 2 and the rotating tube 3 are rotatably connected to the inner wall of the mixing pool 1 through bearings. The bearings are embedded in the inner wall of the mixing pool 1. A motor 22 is installed on the outer surface of the mixing pool 1 at the end of the rotating rod 2. The motor 22 is transmission-connected to the rotating rod 2. When the motor 22 is started, it can drive the rotating rod 2 on the left side to rotate.

[0025] The outer ring of the rotating rod 2 is fixed with the ring rod 21 through the connecting rod 211, and the outer ring of the rotating tube 3 is fixed with the ring tube 31 through the connecting tube 311. The connecting tube 311 connects the ring tube 31 and the rotating tube 3. The diameters of the ring rod 21 and the ring tube 31 are the same. Four horizontal tubes 4 are evenly connected between the ring rod 21 and the ring tube 31. The right end of the horizontal tube 4 is connected to the inside of the ring tube 31. The end of the rotating tube 3 can be rotatably penetrated to the outside of the mixing tank 1, and the end of the rotating tube 3 is connected to a rotating joint 32, which is connected to the precipitant water supply pipe to make the precipitant The precipitant passes through the rotary joint 32 and enters the rotating tube 3 and the annular tube 31, and then enters the transverse tube 4. The inner and outer surfaces of the transverse tube 4 are evenly provided with a plurality of nozzles 41 connected with the inside of the transverse tube 4. The nozzles 41 are inclined toward one side of the annular rod 21. After entering the transverse tube 4, the precipitant is sprayed to the left, and the wastewater flows from the left to the right, so that the precipitant and the wastewater have opposite effects. When the transverse tube 4 is driven to rotate with the annular rod 21 and the annular tube 31, it also has a stirring effect on the wastewater, so that the precipitant is fully mixed and reacted with the wastewater.

[0026] When in use, the motor 22 is connected to the control device and powered, the pipeline of the galvanized wastewater is connected to the water inlet pipe 11, the water outlet pipe 12 is connected to the sedimentation tank, and the rotating pipe 3 is connected to the precipitant supply pipe through the rotating joint 32. When the precipitant is mixed into the galvanized wastewater, the galvanized wastewater enters from the water inlet pipe 11 and flows in the direction of the water outlet pipe 12, the motor 22 is started to drive the rotating rod 2 and the ring rod 21 to rotate, and drive the transverse pipe 4 and the ring pipe 31 on the other side and the rotating pipe 3 to rotate, at the same time, the precipitant enters the rotating pipe 3 through the rotating joint 32, and then flows into the transverse pipe 4 through the connecting pipe 311, and finally the precipitant is sprayed out from the nozzle 41 obliquely to the left, and the transverse pipe 4 is driven to rotate to stir the galvanized wastewater, and the precipitant is sprayed to the left, and can be well mixed and reacted with the galvanized wastewater flowing to the right, so that the metal ions in the galvanized wastewater are precipitated, and finally discharged from the water outlet pipe 12 into the sedimentation tank with the wastewater.

Claims

1. A galvanizing wastewater recovery and treatment device, comprising a mixing tank (1), a rotating rod (2) and a rotating pipe (3), characterized in that: The rotating rod (2) and the rotating tube (3) are respectively installed on both sides of the interior of the mixing tank (1) in a rotatable manner in a transverse direction, and the rotating rod (2) and the rotating tube (3) are respectively located in the middle positions of the two sides of the interior of the mixing tank (1); The outer ring of the rotating rod (2) is fixed with a ring rod (21) via a connecting rod (211); the outer ring of the rotating tube (3) is fixed with a ring tube (31) via a connecting tube (311); the connecting tube (311) connects the ring tube (31) and the rotating tube (3); four transverse tubes (4) are evenly connected between the ring rod (21) and the ring tube (31); the transverse tubes (4) are connected with the ring tube (31); a plurality of nozzles (41) connected with the inside of the transverse tube (4) are evenly arranged on the inner and outer surfaces of the transverse tube (4); the nozzles (41) are inclined toward one side of the ring rod (21).

2. A galvanizing wastewater recycling and treatment device according to claim 1, characterized in that: The end of the rotating tube (3) can be rotatably inserted into the outside of the mixing tank (1), and the end of the rotating tube (3) is connected to a rotating joint (32).

3. A galvanizing wastewater recycling and treatment device according to claim 1, characterized in that: A motor (22) is installed on the outer surface of the mixing tank (1) at the end of the rotating rod (2), and the motor (22) is transmission-connected to the rotating rod (2).

4. A galvanizing wastewater recycling and treatment device according to claim 1, characterized in that: The rotating rod (2) and the rotating tube (3) are both rotatably connected to the inner wall of the mixing tank (1) via bearings, and the bearings are embedded in the inner wall of the mixing tank (1).

5. A galvanizing wastewater recycling and treatment device according to claim 1, characterized in that: A water inlet pipe (11) is connected to the lower side of the mixing tank (1) on one side of the ring rod (21), and the water inlet pipe (11) is in communication with the interior of the mixing tank (1).

6. A galvanizing wastewater recycling and treatment device according to claim 1, characterized in that: A water outlet pipe (12) is connected to the upper side of the mixing tank (1) on one side of the ring pipe (31), and the water outlet pipe (12) is in communication with the interior of the mixing tank (1).

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