Industrial wastewater one-step purifier

Abstract

The utility model provides a one-step purifier for industrial wastewater, which relates to the technical field of industrial wastewater treatment devices and comprises a reaction tank, a vortex reaction cylinder, a buffer reaction cylinder, a sewage inlet pipe, a sludge discharge pipe, a water production pipe and a filter plate. The buffer reaction cylinder covers the outer side of the vortex reaction cylinder and is communicated with the vortex reaction cylinder, a suspension clarification settling zone is arranged between the buffer reaction cylinder and the reaction tank shell, a strong adsorption zone and a sludge concentration zone are respectively arranged above and below the buffer reaction cylinder, and the sewage inlet pipe is arranged at the bottom of the reaction tank and is communicated with the vortex reaction cylinder; a rotary spray head is arranged at the end part of the sewage inlet pipe and extends into the vortex reaction cylinder, the water production pipe is connected with an overflow table at the top of the reaction tank, and the filter plate is mounted on the overflow table in a covering manner. The reaction between the medicament in the sewage and the sewage is not sufficient, and the flocculation effect is not good.

Description

Technical Field

[0001] The utility model relates to the technical field of industrial wastewater treatment devices, and particularly relates to an industrial wastewater one-step purifier. Background Art

[0002] According to the principle of oxidation-reduction-neutralization high-efficiency flocculation precipitation treatment, the industrial wastewater one-step purifier can treat electroplating mixed wastewater. The industrial wastewater one-step purifier internally includes five regions: a high-speed vortex reaction region, a gradient buffer reaction region, a suspension clarification precipitation region, a strong adsorption region, and a sludge thickening region. The five regions respectively have the following functions: oxidation-reduction neutralization reaction, high-speed coagulation, suspension clarification, strong adsorption, and sludge thickening effects.

[0003] The electroplating mixed wastewater is pumped into a pipeline mixer through a pipeline pump. After respectively adding a reducing agent, an alkaline agent, an oxidizing agent, and PAM according to needs through a dosing device, it is sent to the one-step purifier through a pipeline pump. The effluent is sprayed out through a nozzle in the high-speed vortex reaction region, and an oxidation-reduction neutralization reaction occurs in the high-speed vortex reaction region and enters the gradient buffer reaction region. As the flow rate slows down, large-particle sludge precipitates downward to the sludge thickening region, and fine particles enter the suspension clarification precipitation region and the strong adsorption region along with the clear water and are filtered by the filter material to produce clear water.

[0004] During the process of treating electroplating mixed industrial wastewater by the existing one-step purifier, the vortex reaction in the high-speed vortex reaction region is only realized by spraying through a nozzle in a conical cylinder, and the vortex effect is not uniform and sufficient enough, resulting in insufficient reaction between the medicament in the sewage and the sewage and poor flocculation effect. Therefore, the present application proposes an industrial wastewater one-step purifier. Summary of the Utility Model

[0005] In order to overcome the problems in the background art, the utility model provides an industrial wastewater one-step purifier, which solves the problems that in the process of treating electroplating mixed industrial wastewater by the existing one-step purifier, the vortex effect is not uniform and sufficient enough, the reaction between the medicament in the sewage and the sewage is insufficient, and the flocculation effect is poor.

[0006] An industrial wastewater one-step purifier includes a reaction tank, a vortex reaction cylinder, a buffer reaction cylinder, a sewage inlet pipe, a sludge discharge pipe, a water production pipe, and a filter plate. The vortex reaction cylinder is arranged at the center of the bottom inside the reaction tank. The buffer reaction cylinder covers the outside of the vortex reaction cylinder and is communicated with the vortex reaction cylinder. The area between the buffer reaction cylinder and the reaction tank shell is a suspension clarification precipitation region. The upper and lower parts of the buffer reaction cylinder are respectively a strong adsorption region and a sludge thickening region. The sewage inlet pipe is installed at the bottom of the reaction tank and is communicated with the vortex reaction cylinder. A rotary spray head is arranged at the end of the sewage inlet pipe and extends into the vortex reaction cylinder. The nozzles of the rotary spray head are tangentially arranged. The sludge discharge pipe is connected with the sludge thickening region. The water production pipe is connected with the overflow platform at the top of the reaction tank. The filter plate is covered and installed on the overflow platform.

[0007] Furthermore, air vent holes are evenly formed in the shell of the eddy current reaction cylinder, and an air supply pipe is installed on the outer wall of the eddy current reaction cylinder. The air outlet of the air supply pipe is communicated with the air vent holes.

[0008] Furthermore, a screen is installed between the middle part of the outer wall of the buffer reaction cylinder and the shell of the reaction tank.

[0009] Furthermore, the eddy current reaction cylinder and the buffer reaction cylinder are in a conical cylinder shape that is wider at the top and narrower at the bottom, and the distance between the buffer reaction cylinder and the eddy current reaction cylinder gradually increases from top to bottom.

[0010] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0011] In the eddy current reaction cylinder of the present application, a rotary nozzle is provided and the nozzles are tangentially arranged. During the water spraying process in the eddy current reaction cylinder, the eddy current reaction can be strengthened, making the reaction and flocculation more sufficient. At the same time, the eddy current reaction cylinder is also connected to tiny bubbles generated by the air supply pipe, which adhere to the fine suspended solids to form a flotation body, facilitating subsequent sludge sedimentation and suspension clarification, and solving the problems that in the process of treating electroplating mixed industrial wastewater by the existing one-step purifier, the eddy current effect is not uniform and sufficient, and the reaction between the chemicals in the sewage and the sewage is not sufficient and the flocculation effect is poor. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings required for the description of the embodiments are described below to clearly illustrate the technical solutions in the embodiments of the present utility model.

[0013] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0014] Figure 2 It is a schematic diagram of the bottom structure of the present utility model;

[0015] Figure 3 It is a schematic diagram of the internal structure of the present utility model;

[0016] Figure 4 It is a schematic diagram of the cross-sectional structure of the present utility model.

[0017] 1 - reaction tank, 11 - suspension clarification sedimentation area, 12 - strong adsorption area, 13 - sludge concentration area, 14 - overflow table, 2 - eddy current reaction cylinder, 21 - air vent hole, 3 - buffer reaction cylinder, 4 - sewage inlet pipe, 41 - rotary nozzle, 5 - sludge discharge pipe, 6 - water production pipe, 7 - filter plate, 8 - air supply pipe, 9 - screen. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In order to make the purpose, technical solutions and beneficial effects of the present utility model clearer, the preferred embodiments of the present utility model will be described in detail below with reference to the drawings for the convenience of those skilled in the art to understand.

[0019] The utility model provides a one-step purifier for industrial wastewater. Refer to Figures 1-4 , a one-step purifier for industrial wastewater, comprising a reaction tank 1, a vortex reaction cylinder 2, a buffer reaction cylinder 3, a sewage inlet pipe 4, a sludge discharge pipe 5, a water production pipe 6 and a filter plate 7. The vortex reaction cylinder 2 is arranged at the center of the bottom inside the reaction tank 1. The buffer reaction cylinder 3 covers the outside of the vortex reaction cylinder 2 and is communicated with the vortex reaction cylinder 2. Between the buffer reaction cylinder 3 and the shell of the reaction tank 1 is a suspended clarification sedimentation area 11. Above and below the buffer reaction cylinder 3 are a strong adsorption area 12 and a sludge concentration area 13 respectively. The sewage inlet pipe 4 is installed at the bottom of the reaction tank 1 and is communicated with the vortex reaction cylinder 2. The end of the sewage inlet pipe 4 is provided with a rotary spray head 41 extending into the vortex reaction cylinder 2. The rotary spray head 41 is tangentially arranged. The sludge discharge pipe 5 is connected with the sludge concentration area 13. The water production pipe 6 is connected with an overflow platform 14 at the top of the reaction tank 1. The filter plate 7 is covered and installed on the overflow platform 14.

[0020] In the vortex reaction cylinder 2 of the reaction tank 1, through the vortex action, the electroplating mixed wastewater added with a reducing agent, an alkali agent, an oxidizing agent and PAM can be fully mixed and reacted. The wastewater is sprayed in the vortex reaction cylinder 2 through the rotary spray head 41. Since the nozzle of the rotary spray head 41 is tangentially arranged, the rotary spray head 41 rotates during the spraying process, strengthening the vortex action and making the mixing uniform, so that the redox reaction and the flocculation effect are more sufficient. After the vortex reaction, the sewage moves upward and then downward after entering the buffer reaction cylinder 3. As the flow rate slows down, the large-particle sludge in the sewage precipitates downward to the sludge concentration area 13, and the fine particles enter the suspended clarification sedimentation area 11 and the strong adsorption area 12 with the clear water upward, and are filtered and adsorbed by the fixed filter material. Finally, the clear water reaches the overflow platform 14 through the filter plate 7 and enters the water production pipe 6, and the concentrated sludge can be discharged from the sludge discharge pipe 5.

[0021] Refer to Figures 1-4 , evenly distributed aeration holes 21 are formed on the shell of the vortex reaction cylinder 2. An aeration pipe 8 is installed on the outer wall of the vortex reaction cylinder 2. The air outlet of the aeration pipe 8 is communicated with the aeration holes 21. The tiny bubbles generated by the aeration pipe 8 adhere to the fine suspended matters to form a flotation body, which is beneficial to subsequent sludge precipitation and suspended clarification.

[0022] Refer to Figures 1-4 , a screen 9 is installed between the middle part of the outer wall of the buffer reaction cylinder 3 and the shell of the reaction tank 1, which can screen the large-particle sludge entrained into the suspended clarification sedimentation area 11.

[0023] Refer to Figures 1-4 , the vortex reaction cylinder 2 and the buffer reaction cylinder 3 are in the shape of a tapered cylinder with a wider upper part and a narrower lower part, and the distance between the buffer reaction cylinder 3 and the vortex reaction cylinder 2 gradually increases from top to bottom, which is beneficial to generating a high-speed vortex and a gradual buffer reaction.

[0024] Working process:

[0025] The electroplating mixed wastewater is pumped into a pipe mixer by a pipe pump. After adding a reducing agent, an alkali agent, an oxidizing agent, and PAM respectively according to needs through a dosing device, it is sent to the sewage inlet pipe 4 by the pipe pump. The effluent is sprayed out in the eddy reaction cylinder 2 through a rotating nozzle 41. An oxidation-reduction neutralization reaction occurs in the eddy reaction cylinder 2 and enters the buffer reaction cylinder 3. As the flow rate slows down, large particles of sludge settle downward to the sludge concentration area 13, and fine particles enter the suspended clarification sedimentation area 11 and the strong adsorption area 12 with the clear water upward. After being filtered by the sieve 9 and the fixed light filter material, the clear water overflows and is produced.

[0026] The above is only the preferred specific implementation mode of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution and the inventive concept of the present utility model, making equivalent substitutions or changes should be covered within the protection scope of the present utility model.

Claims

1. A one-step purifier for industrial wastewater, characterized in that: The invention comprises a reaction tank (1), a vortex reaction cylinder (2), a buffer reaction cylinder (3), a sewage inlet pipe (4), a mud discharge pipe (5), a water production pipe (6) and a filter plate (7), wherein the vortex reaction cylinder (2) is arranged at the bottom center of the reaction tank (1), the buffer reaction cylinder (3) cover is arranged outside the vortex reaction cylinder (2) and is connected to the vortex reaction cylinder (2), a suspension clarification sedimentation area (11) is provided between the buffer reaction cylinder (3) and the shell of the reaction tank (1), and the upper and lower parts of the buffer reaction cylinder (3) are respectively The invention relates to a strong adsorption zone (12) and a sludge concentration zone (13). A sewage inlet pipe (4) is installed at the bottom of the reaction tank (1) and is connected to the vortex reaction cylinder (2). A rotating nozzle (41) is arranged at the end of the sewage inlet pipe (4) and extends into the vortex reaction cylinder (2). The nozzle of the rotating nozzle (41) is arranged tangentially. The sludge discharge pipe (5) is connected to the sludge concentration zone (13). The water production pipe (6) is connected to the overflow platform (14) at the top of the reaction tank (1). The filter plate (7) is installed on the overflow platform (14) to cover the overflow platform (14).

2. The one-step industrial wastewater purifier according to claim 1, characterized in that: Aeration holes (21) are evenly arranged on the shell of the vortex reaction cylinder (2), an aeration pipe (8) is installed on the outer wall of the vortex reaction cylinder (2), and the air outlet of the aeration pipe (8) is connected to the aeration hole (21).

3. The one-step industrial wastewater purifier according to claim 1, characterized in that: A screen (9) is installed between the middle portion of the outer wall of the buffer reaction cylinder (3) and the shell of the reaction tank (1).

4. The one-step industrial wastewater purifier according to claim 1, characterized in that: The vortex reaction cylinder (2) and the buffer reaction cylinder (3) are in the shape of a cone that is wide at the top and narrow at the bottom, and the distance between the buffer reaction cylinder (3) and the vortex reaction cylinder (2) gradually increases from top to bottom.

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