Closed flotation system with dross blowing device

A flotation and flotation cell technology, applied in flotation water/sewage treatment, etc., can solve the problems of slag scraper that is prone to failure, and achieve the effects of avoiding secondary pollution, overcoming scum overflow, and reliable work

Inactive Publication Date: 2010-12-15
HEILONGJIANG JIANLONG IRON & STEEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a closed flotation system with a scum blowing device to solve the problem that the scum scraper in the existing flotation device is

Method used

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  • Closed flotation system with dross blowing device
  • Closed flotation system with dross blowing device

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0006] Specific embodiment one: the following combination figure 1 The present embodiment will be specifically described. figure 1 The part with the reference numeral 5 in the middle is the degreasing tank, and the wastewater flowing out from the degreasing tank 5 flows into the flotation tank 1 through the wastewater inlet pipe 1-1. This embodiment includes a flotation cell 1 , which also includes a compressed air pipe 4 , a tee pipe joint 11 , a No. 1 blowing pipe 12 , a No. 2 blowing pipe 13 , a sealing gasket 2 , a sealing plate 3 , a slag removal tank 8 , and a scum tank 9 , the chute 14 and the water pump 10, the sealing plate 3 is covered on the top of the flotation cell 1 to close the upper opening of the flotation cell 1, the sealing gasket 2 is arranged at the contact between the sealing plate 3 and the wall of the flotation cell 1, and the compressed air One end of the pipeline 4 is communicated with one end of the three-way pipe joint 11, and the other two ends of...

Example Embodiment

[0007] Specific embodiment two: the following combination figure 1 The present embodiment will be specifically described. The difference between this embodiment and the first embodiment is that it also includes a container tank 6 and a buffer tank 7, the air inlet of the buffer tank 7 is connected to the compressed air pipeline 4, and the air outlet of the buffer tank 7 is connected to the air intake of the container tank 6 The air outlet of the container tank 6 communicates with the bottom of the flotation cell 1 . This arrangement enables the slag that settles to the bottom of the flotation cell 1 to be washed up by the air bubbles, water flow, etc. generated by the gas introduced into it, so that the water can be treated more cleanly.

Example Embodiment

[0008] Specific embodiment three: the following combination figure 1 The present embodiment will be specifically described. The difference between this embodiment and the first embodiment is that the other end of the No. 1 blow pipe 12 and the other end of the No. 2 blow pipe 13 are uniformly distributed along the length direction of the side wall 1-2 of the flotation cell 1 . This arrangement makes the air distribution for purging the scum more reasonable.

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Abstract

The invention relates to a flotation device, in particular to a closed flotation system with a dross blowing device, which is used for blowing dross in the pretreatment stage of phenol-cyanogen wastewater treatment plants. The system solves the problem that dross scrapers in the existing floatation devices easily have failure. The system comprises a flotation tank, a compressed air pipe, a tee pipe coupling, a No.1 blowpipe, a No.2 blowpipe, a seal plate, a dross removal tank, a dross tank, a chute and a water pump, wherein one end of the compressed air pipe is communicated with one end of the tee pipe coupling; other two ends of the tee pipe coupling are respectively communicated with one end of the No.1 blowpipe and one end of the No.2 blowpipe; the other end of the No.1 blowpipe and the other end of the No.2 blowpipe are respectively inserted into the seal plate and are distributed along a side wall on which a wastewater inlet pipe of the flotation tank is positioned; the dross removal tank and the flotation tank are communicated; the upper and lower ends of the chute are respectively communicated with the dross removal tank and the dross tank; and a pumping pipe of the water pump is arranged in the dross tank. The system omits the dross scrapers, thus solving the problem that dross scrapers in the floatation devices easily have failure.

Description

technical field [0001] The invention relates to a flotation device, which is used for purging scum in the pretreatment stage of a phenol cyanide wastewater treatment station. Background technique [0002] The flotation system of the coking phenol cyanide wastewater treatment station is in the pretreatment stage of the wastewater treatment process. The main work of the flotation system is to remove light oil and suspended matter. Due to the continuous generation of scum, it is necessary to use the scum scraper to continuously scrape the scum. If the scum scraper fails, the generated scum cannot be removed in time, which will cause A large amount of scum overflows, causing secondary pollution to the environment. However, the existing slag scraper is prone to failures during operation, such as road drop, transmission chain falling off, travel switch wear, etc., and more than 4 people are required to handle the slag scraper failure each time. When the scum scraper breaks down,...

Claims

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Application Information

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IPC IPC(8): C02F1/24
Inventor 韩海红
Owner HEILONGJIANG JIANLONG IRON & STEEL
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