CN216403900U

CN216403900U - Floating slag liquid level control device of air flotation tank

Info

Publication number: CN216403900U
Application number: CN202122434817.8U
Authority: CN
Inventors: 李高辉; 刘鹏; 吴恒斌; 姚瀚威
Original assignee: Dongguan Daohui Environmental Protection Technology Co ltd
Current assignee: Dongguan Daohui Environmental Protection Technology Co ltd
Priority date: 2021-10-09
Filing date: 2021-10-09
Publication date: 2022-04-29
Anticipated expiration: 2031-10-09

Abstract

The utility model discloses a floating slag liquid level control device of an air floatation tank, which comprises the air floatation tank, wherein the air floatation tank comprises a slag scraping area and an overflow area which are mutually isolated, the slag scraping area is provided with a liquid inlet and a liquid outlet, the liquid outlet is positioned at the bottom of the slag scraping area, the liquid outlet is connected with an overflow pipe, the outlet of the overflow pipe is positioned in the overflow area, and the outlet of the overflow pipe is used for adjusting the liquid level so that the liquid level is flush with a scraper of a slag scraping machine. According to the principle of the communicating vessel, when the wastewater continuously enters the slag scraping area from the liquid inlet of the slag scraping area, the clear water is timely discharged into the overflow area by utilizing the outlet of the overflow pipe so as to prevent the liquid level of the slag scraping area from rising. Meanwhile, the liquid outlet is positioned at the bottom of the scum scraping area, and the scum is positioned at the liquid level, so that the liquid discharged from the liquid outlet is clear water, and the scum content is very low, so that the scum is more removed by the scum scraping machine.

Description

Floating slag liquid level control device of air flotation tank

Technical Field

The utility model relates to the technical field of air floatation tanks, in particular to a scum liquid level control device of an air floatation tank.

Background

Scum in the solid-liquid separation area of the air floatation tank needs to be removed in time, otherwise, micro bubbles can be naturally broken after a long time interval, and the bearing force on the scum is lost, so that the phenomenon of water quality deterioration is caused. Usually, scum is removed by a scum scraper, namely, the scum is removed from the air flotation tank by the scraper of the scum scraper.

The height is fixed after the installation based on scraping the sediment machine, scrapes the scraper blade of sediment machine also fixed promptly, so, when continuously getting into waste water in the air supporting pond, the liquid level is too high leads to scraping the sediment machine and will too much aqueous solution to arrange away easily, leads to promptly to scraping the sediment effect relatively poor.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a floating slag liquid level control device of an air flotation tank, which can prevent the liquid level in the air flotation tank from being too high, thereby ensuring that a slag scraper has a good slag scraping effect.

The purpose of the utility model is realized by adopting the following technical scheme:

air supporting pond dross liquid level control device, including the air supporting pond, the air supporting pond is distinguished and is distinguished including what keep apart each other scrapes the sediment, scrape the sediment district and seted up inlet and leakage fluid dram, the leakage fluid dram is located scrape the bottom in sediment district, the leakage fluid dram is connected with the overflow pipe, and the export of overflow pipe is located in the overflow district, the export of overflow pipe is used for adjusting the liquid level to make the liquid level high with the scraper blade of scraping the sediment machine.

Further, the overflow tube is a hose; the floating slag liquid level control device of the air floatation tank further comprises a lifting driving mechanism, and the lifting driving mechanism is in driving connection with the overflow pipe and is used for driving the outlet of the overflow pipe to ascend or descend.

Further, the lifting driving mechanism is a combination of a turbine and a worm, a cylinder or an electric push rod.

Further, a liquid level sensor is installed in the slag scraping area, and the liquid level sensor is connected with the lifting driving mechanism through a control system.

Further, the control system is a PLC system.

Further, the liquid level sensor is an ultrasonic liquid level sensor.

Further, the floating slag liquid level control device of the air flotation tank further comprises a slag scraping machine, the slag scraping machine is located in the slag scraping area, and a scraper of the slag scraping machine is located at the top of the slag scraping area.

Compared with the prior art, the utility model has the beneficial effects that:

according to the principle of the communicating vessel, when the wastewater continuously enters the slag scraping area from the liquid inlet of the slag scraping area, the clear water is timely discharged into the overflow area by utilizing the outlet of the overflow pipe so as to prevent the liquid level of the slag scraping area from rising. Meanwhile, the liquid outlet is positioned at the bottom of the scum scraping area, and the scum is positioned at the liquid level, so that the liquid discharged from the liquid outlet is clear water, and the scum content is very low, so that the scum is more removed by the scum scraping machine.

Drawings

Fig. 1 is a schematic structural diagram of a scum level control device of an air flotation tank of the present invention, wherein a dotted line represents a liquid flow direction.

In the figure: 1. a slag scraping area; 11. a liquid inlet; 12. a liquid discharge port; 2. an overflow area; 3. an overflow pipe; 31. an outlet of the overflow tube; 4. a lifting drive mechanism; 5. a liquid level sensor; 6. and a slag scraper.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may be present. As used herein, "vertical," "horizontal," "left," "right," and similar expressions are for purposes of illustration only and do not represent the only embodiments.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Fig. 1 shows a scum level control device of an air flotation tank according to a preferred embodiment of the utility model, which comprises an air flotation tank. The air supporting pond includes that the sediment district 1 and the overflow district 2 of scraping of mutual isolation, scrapes sediment district 1 and has seted up inlet 11 and leakage fluid dram 12, and leakage fluid dram 12 is located the bottom of scraping sediment district 1, and leakage fluid dram 12 is connected with overflow pipe 3, and the export 31 of overflow pipe is located overflow district 2, and the export 31 of overflow pipe is used for adjusting the liquid level to make the liquid level high with the scraper blade of scraping sediment machine 6. Thus, according to the principle of the communicating vessel, when the wastewater continuously enters the slag scraping zone 1 from the liquid inlet 11 of the slag scraping zone 1, the clear water is discharged into the overflow zone 2 in time by the outlet 31 of the overflow pipe, so as to prevent the liquid level of the slag scraping zone 1 from rising; the liquid in the overflow area 2 will be drained away from the outlet of the overflow area 2. Meanwhile, because the liquid discharge port 12 is located at the bottom of the scum scraping area 1 and the scum is located at the liquid level, the liquid discharged from the liquid discharge port 12 is clean water, so that the scum content is extremely low, and the scum is more removed by the scum scraper 6.

When the liquid inlet 11 of the slag scraping area 1 has a large discharge capacity, the phenomenon that the two liquid surfaces are kept level may be delayed to a certain extent due to the fact that the pipe diameter of the overflow pipe 3 is fixed and certain energy is required for liquid to rise. Therefore, in order to be able to quickly lower the liquid level in the slag scraping zone 1, the overflow pipe 3 is preferably a hose, so that the overflow pipe 3 can be connected to the liquid outlet 12 on the one hand, and can also be adjusted in height on the other hand. More specifically, the floating slag liquid level control device of the air flotation tank further comprises a lifting driving mechanism 4, and the lifting driving mechanism 4 is in driving connection with the overflow pipe 3 and is used for driving the outlet 31 of the overflow pipe to ascend or descend. The arrangement is that when the liquid level of the slag scraping area 1 is too high, the outlet 31 of the overflow pipe can be lowered to increase the hydraulic pressure difference and increase the overflow speed; when the liquid level is too low due to excessive liquid drainage of the slag scraping area 1, the outlet 31 of the overflow pipe can rise to raise the liquid level of the slag scraping area 1, so that the scraper of the slag scraper 6 is prevented from being separated from the liquid level.

Wherein, the lifting driving mechanism 4 is a combination of a turbine and a worm, a cylinder or an electric push rod.

Preferably, the slag scraping area 1 is provided with a liquid level sensor 5, and the liquid level sensor 5 is connected with the lifting driving mechanism 4 through a control system. The liquid level of the slag scraping area 1 is monitored through a liquid level sensor 5, so that the lifting driving mechanism 4 is controlled to operate in real time through a control system. Among them, the control system is preferably a PLC system.

Preferably, the level sensor 5 may be of the contact type or of the non-contact type. Preferably, the level sensor 5 is an ultrasonic level sensor.

Preferably, the floating slag liquid level control device of the air flotation tank further comprises a slag scraper 6, the slag scraper 6 is positioned in the slag scraping area 1, and a scraper of the slag scraper 6 is positioned at the top of the slag scraping area 1.

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. The floating slag liquid level control device of the air flotation tank is characterized in that: including the air supporting pond, the air supporting pond is including scraping sediment district (1) and overflow district (2) of mutual isolation, scrape sediment district (1) and seted up inlet (11) and leakage fluid dram (12), leakage fluid dram (12) are located scrape the bottom in sediment district (1), leakage fluid dram (12) are connected with overflow pipe (3), and export (31) of overflow pipe are located in overflow district (2), export (31) of overflow pipe are used for adjusting the liquid level to make the liquid level high with the scraper blade of scraping sediment machine (6).

2. The dross level control device of claim 1, wherein: the overflow pipe (3) is a hose; the floating slag liquid level control device of the air floatation tank further comprises a lifting driving mechanism (4), wherein the lifting driving mechanism (4) is in driving connection with the overflow pipe (3) and is used for driving an outlet (31) of the overflow pipe to ascend or descend.

3. The dross level control apparatus of claim 2, wherein: the lifting driving mechanism (4) is a combination of a turbine and a worm, a cylinder or an electric push rod.

4. The dross level control apparatus of claim 2, wherein: and a liquid level sensor (5) is installed in the slag scraping area (1), and the liquid level sensor (5) is connected with the lifting driving mechanism (4) through a control system.

5. The dross level control apparatus of claim 4, wherein: the control system is a PLC system.

6. The dross level control apparatus of claim 4, wherein: the liquid level sensor (5) is an ultrasonic liquid level sensor.

7. The dross level control device of claim 1, wherein: the floating slag liquid level control device of the air flotation tank further comprises a slag scraping machine (6), wherein the slag scraping machine (6) is located in the slag scraping area (1), and a scraping plate of the slag scraping machine (6) is located at the top of the slag scraping area (1).