Treatment device for shock absorber part cleaning wastewater

Abstract

The treatment device comprises a lifting pump, a reaction tank, an air floatation tank, a scum tank, a transition tank, a sedimentation tank, a clean water tank, a sludge tank, an activated carbon tank, a quartz sand filter tank, a plate-and-frame filter press and a plurality of dosing devices, the lifting pump is externally connected with wastewater and is communicated with the reaction tank through a pipeline, the reaction tank is provided with a stirring device, the middle lower part of the reaction tank is communicated with the air floatation tank through a pipeline, the air floatation tank is provided with a foam scraping device, and an overflow partition plate is arranged in the transition tank and divides the interior of the transition tank into a primary precipitation tank and a primary clear water tank; the primary precipitation tank is communicated with the middle lower part of the air floatation tank through a pipeline, the primary clear water tank is communicated with the precipitation tank through a U-shaped pipeline, the side wall of the precipitation tank is provided with an overflow hole and is communicated with the clear water tank through the overflow hole, and the clear water tank is sequentially connected with the activated carbon tank and the quartz sand filter tank through pipelines. The sewage treatment device can remove sludge and foam from the wastewater and recycle the wastewater, so that water resources are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a treatment device for wastewater used for washing shock absorber parts. Background Art

[0002] In the production and processing of shock absorbers, ultrasonic cleaning equipment and high and low pressure spray cleaning machines are used to clean parts (mainly oil storage cylinders and connecting rods). The wastewater generated in the cleaning process contains pollutants such as emulsion, cutting fluid, hydraulic oil, anti-rust oil, iron filings, and cleaning agents (alkaline). This wastewater must be treated by wastewater equipment before being discharged; therefore, it is necessary to provide a wastewater treatment device to solve the above technical problems. Utility Model Content

[0003] The utility model aims to provide a treatment device for waste water from washing shock absorber parts in view of the defects and shortcomings of the prior art.

[0004] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a treatment device for wastewater from washing shock absorber parts, the innovation of which is that it includes a lifting pump, a reaction tank, an air flotation tank, a scum tank, a transition tank, a sedimentation tank, a clean water tank, a sludge tank, an activated carbon tank, a quartz sand filter tank, a plate and frame filter press and a plurality of dosing devices; the lifting pump is externally connected to the wastewater and is connected to the reaction tank through a pipeline, a stirring device is arranged on the reaction tank, the lower part of the reaction tank is connected to the air flotation tank through a pipeline, a scraping device is arranged on the air flotation tank, the scraping device scrapes the scum into the scum tank, an overflow baffle is arranged inside the transition tank, The overflow baffle divides the interior of the transition tank into a primary sedimentation tank and a primary clear water tank. The primary sedimentation tank is connected to the middle and lower parts of the flotation tank through a pipeline. The primary clear water tank and the sedimentation tank are connected by a U-shaped pipeline. An overflow hole is opened on the side wall of the sedimentation tank, and is connected to the clear water tank through the overflow hole. The clear water tank is connected to an activated carbon tank and a quartz sand filter tank in sequence through pipelines. The bottoms of the reaction tank, the flotation tank, the primary sedimentation tank and the sedimentation tank are all connected to a sludge tank through pipelines. The sludge tank is connected to a plate and frame filter press, and the plate and frame filter press is connected to a lift pump through a reflux pipe; the dosing device is respectively connected to the reaction tank, the flotation tank and the sedimentation tank.

[0005] Furthermore, the stirring device includes a stirring motor, a stirring shaft and a stirring blade.

[0006] Furthermore, the foam scraping device includes a pair of rotating shafts, and sprockets are arranged at both ends of the rotating shafts, and the sprockets are connected by chains for transmission, and foam scraping plates are arranged between the chains, and the rotating shafts are driven by a motor.

[0007] Furthermore, the scum pool is inclined and has a discharge port.

[0008] Furthermore, it also includes escalators.

[0009] After adopting the above structure, the utility model has the following beneficial effects:

[0010] The utility model can carry out reaction treatment on wastewater, remove sludge and foam, thereby meeting the wastewater discharge standard, can reuse the wastewater, save water resources, and at the same time can circulate the wastewater for treatment, thereby improving the treatment quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a top view of the utility model;

[0012] Figure 2 It is a side view of the utility model;

[0013] Figure 3 It is a structural schematic diagram of the foam scraping device in the utility model.

[0014] Description of reference numerals:

[0015] 1 lifting pump, 2 reaction tank, 3 flotation tank, 4 slag tank, 5 transition tank, 51 overflow baffle, 52 primary sedimentation tank, 53 primary clear water tank, 6 sedimentation tank, 61 overflow hole, 7 clear water tank, 8 sludge tank, 9 activated carbon tank, 10 quartz sand filter tank, 11 plate and frame filter press, 12 dosing device, 13 stirring device, 14 scraper device, 141 rotating shaft, 142 sprocket, 143 chain, 144 scraper plate, 15-U-type pipeline, 16 escalator. DETAILED DESCRIPTION

[0016] The utility model is further described below in conjunction with the accompanying drawings.

[0017] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described here are only used to explain the utility model and are not used to limit the utility model.

[0018] See also Figure 1-3A treatment device for wastewater from washing shock absorber parts, comprising a lifting pump 1, a reaction tank 2, an air flotation tank 3, a scum tank 4, a transition tank 5, a sedimentation tank 6, a clean water tank 7, a sludge tank 8, an activated carbon tank 9, a quartz sand filter tank 10, a plate and frame filter press 11 and a plurality of dosing devices 12; the lifting pump 1 is connected to the wastewater externally and is connected to the reaction tank 2 through a pipeline, a stirring device 13 is arranged on the reaction tank 2, the middle and lower part of the reaction tank 2 is connected to the air flotation tank 3 through a pipeline, a froth scraping device 14 is arranged on the air flotation tank 3, the froth scraping device 14 scrapes the scum into the scum tank, an overflow partition 51 is arranged inside the transition tank 5, and the overflow partition 51 divides the inside of the transition tank into a primary sedimentation tank and a secondary sedimentation tank. The primary sedimentation tank 53 is connected to the middle and lower part of the flotation tank 3 through a pipeline. The primary clear water tank 53 is connected to the sedimentation tank 6 by a U-shaped pipeline 15. An overflow hole 61 is opened on the side wall of the sedimentation tank 6, and is connected to the clean water tank 7 through the overflow hole 61. The clean water tank 7 is connected to the activated carbon tank 9 and the quartz sand filter tank 10 in sequence through pipelines. The bottoms of the reaction tank 2, the flotation tank 3, the primary sedimentation tank 52 and the sedimentation tank 6 are all connected to the sludge tank 8 through pipelines. The sludge tank 8 is connected to the plate and frame filter press 11, and the plate and frame filter press 11 is connected to the lifting pump 1 through a reflux pipe; the dosing device 12 is respectively connected to the reaction tank 2, the flotation tank 3 and the sedimentation tank 6. Specifically, the wastewater is treated step by step through interconnected mechanisms and equipment to meet the discharge standards; the overflow baffle 51 can be a split structure with overlapping parts at the upper and lower parts, and the upper part is height-adjusted by a screw to match the water level of the primary sedimentation tank 52; the stirring device 13 can accelerate the reaction speed of the wastewater, thereby improving the efficiency; the scraping device 14 is used to scrape off the scum on the surface of the flotation tank 3 to preliminarily treat the wastewater.

[0019] The working principle of this utility model:

[0020] The cleaning wastewater enters the reaction tank 2 by the lifting pump 1. The tank is equipped with a stirring device 13. Demulsifier is added to fully demulsify. After the addition of the agent, obvious flocs will be produced; the wastewater enters the flotation tank 3 (the flotation tank is equipped with a flotation circulation pump and a dissolving tank), and polyaluminium chloride (PAC) or polyacrylamide (PAM) is added to the tank for full reaction, which can aggregate the suspended matter in the water to form large floccules. At the same time, part of the treated return water is pressurized by the flotation circulation pump and enters the dissolving tank to mix with compressed air. The air is dissolved in the wastewater. At this time, the dissolving efficiency reaches more than 80%; the air dissolved in the water is released under reduced pressure in the flotation tank 3, and the air is precipitated in the form of 20-30μm bubbles with a high surface area adsorption capacity. The microbubbles combine with the suspended matter in the sewage to reduce the specific gravity of the suspended matter in the sewage until it floats to the surface of the water body to form a large amount of scum, and then the scum is removed by the scraping device 14 installed on the flotation tank. The wastewater in the flotation tank 3 flows into the primary sedimentation tank 52 and undergoes preliminary sedimentation. The primary clean water on the surface of the wastewater flows through the overflow baffle 51 into the primary clean water tank 53 and into the sedimentation tank 6 through the U-shaped pipe 15 for sedimentation. The clean water on the surface of the wastewater flows into the clean water tank 7 through the overflow hole 61. The wastewater in the clean water tank 7 is lifted by a water pump to the activated carbon tank 9 and the quartz sand filter tank 10 to remove the colloidal substances and fine particles in the wastewater again, so that the effluent meets the standards and is discharged through the pipe. The wastewater can be transported to the cleaning area for use of the semi-finished product. The scum and sludge deposited at the bottom of the reaction tank 2, the flotation tank 3, the primary sedimentation tank 52 and the sedimentation tank 6 are all transported to the sludge tank 8 through pipelines, and then transported to the plate and frame filter press 11 for filtration. The sludge after filtration is entrusted to the corresponding institutions for disposal, and the wastewater can enter the lifting pump 1 again for further treatment. The pH value can be adjusted in the sedimentation tank 6 to 6-9.

[0021] In this embodiment, the stirring device 13 includes a stirring motor, a stirring shaft and stirring blades. The stirring motor drives the stirring blades to rotate through the stirring shaft, thereby allowing the wastewater to fully react.

[0022] In this embodiment, the scraper device 14 includes a pair of rotating shafts 141, and sprockets 142 are arranged at both ends of the rotating shaft 141, and the sprockets 142 are connected by chains 143 for transmission, and a scraper plate 144 is arranged between the chains 143, and the rotating shaft 141 is driven by a motor. The motor drives the rotating shaft 141 to rotate, thereby driving the sprocket 142 to rotate, so that the chain 143 moves, thereby driving the scraper plate 144 to circulate, and removing the scum on the surface of the wastewater and scraping it into the scum pool 4.

[0023] In this embodiment, the scum pool 4 is tilted and provided with a discharge port. The waste scum in the scum pool 4 will be slowly discharged from the discharge port by its own weight, and a waste bucket can be provided outside the discharge port for receiving.

[0024] In this embodiment, an escalator 16 is also included. The escalator 16 is convenient for the staff to go up and observe the working conditions of each device, which is convenient for maintenance.

[0025] The above description is only used to illustrate the technical solution of the utility model rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the utility model by ordinary technicians in this field should be included in the scope of the claims of the utility model as long as they do not depart from the spirit and scope of the technical solution of the utility model.

Claims

1. A device for treating wastewater from washing shock absorber parts, characterized in that: It includes a lifting pump, a reaction tank, an air flotation tank, a scum tank, a transition tank, a sedimentation tank, a clear water tank, a sludge tank, an activated carbon tank, a quartz sand filter tank, a plate and frame filter press and a plurality of dosing devices; the lifting pump is externally connected to wastewater and is connected to the reaction tank through a pipeline, a stirring device is arranged on the reaction tank, the lower part of the reaction tank is connected to the air flotation tank through a pipeline, a froth scraping device is arranged on the air flotation tank, and the froth scraping device scrapes the scum into the scum tank, an overflow partition is arranged inside the transition tank, and the overflow partition divides the interior of the transition tank into a primary sedimentation tank and a primary clear water tank. The primary sedimentation tank is connected to the middle and lower parts of the flotation tank through a pipeline, the primary clear water tank is connected to the sedimentation tank by a U-shaped pipeline, an overflow hole is provided on the side wall of the sedimentation tank, and the clear water tank is connected to the clear water tank through the overflow hole, the clear water tank is connected to the activated carbon tank and the quartz sand filter tank in sequence through pipelines, the bottoms of the reaction tank, the flotation tank, the primary sedimentation tank and the sedimentation tank are all connected to the sludge tank through pipelines, the sludge tank is connected to the plate and frame filter press, and the plate and frame filter press is connected to the lift pump through a reflux pipe; the dosing device is respectively connected to the reaction tank, the flotation tank and the sedimentation tank.

2. The device for treating wastewater from washing shock absorber parts according to claim 1, characterized in that: The stirring device comprises a stirring motor, a stirring shaft and a stirring blade.

3. The device for treating wastewater from washing shock absorber parts according to claim 1, characterized in that: The foam scraping device comprises a pair of rotating shafts, and sprocket wheels are arranged at both left and right ends of the rotating shafts, and the sprocket wheels are connected by chains for transmission, and foam scraping plates are arranged between the chains. The rotating shafts are driven by motors.

4. The device for treating wastewater from washing shock absorber parts according to claim 1, characterized in that: The scum pool is inclined and provided with a discharge port.

5. The device for treating wastewater from washing shock absorber parts according to claim 1, characterized in that: Also includes escalators.

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