CN201010567Y

CN201010567Y - Automatic washing aerating biological filter

Info

Publication number: CN201010567Y
Application number: CNU2007200351357U
Authority: CN
Inventors: 钱盘生; 蒋鸿明; 刘立忠; 吴文华
Original assignee: JIANGSU JINSHAN ENVIRONMENT PROTECTION ENGINEERING Co Ltd
Current assignee: Jiangsu Jinshan Environmental Protection Technology Co.,Ltd.
Priority date: 2007-03-16
Filing date: 2007-03-16
Publication date: 2008-01-23
Anticipated expiration: 2017-03-16

Abstract

An automatic flushing and aerating biological filter, relating to a biological wastewater treatment device, comprises a filter tank, filtering material in the filter tank, a water distributing filter cap below the filtering material, and a gas distributing device in a water collecting area at the bottom of the filter tank, wherein a water inlet pipe and a water outlet pipe are provided at the top of the filter tank; a flushing water tank is disposed at the upper part of the tank and integrated with the tank; the flushing water tank is communicated with the water collecting area at the bottom of the tank through connecting pipes in the tank; the outlet pipe is disposed at the top of the flushing water tank, and a tee is disposed on the water inlet pipe at the top of the tank and respectively equipped with a water inlet valve and a water outlet valve. The utility model is equipped with the flushing water tank at the upper part of the aerating biological filter tank, so as to realize back flushing the biological filtering material without consumption of power. The utility model has the advantages of saved power consumption, reduced operating cost, compact entire equipment, and high treatment efficiency.

Description

Automatically wash BAF

Technical field

The utility model relates to the biological wastewater treatment device, refers in particular to a kind of automatic flushing BAF.

Background technology

Chinese patent CN200520145852.6 discloses " a kind of BAF ", mainly include the pond body, filler, the filler baffle plate, aeration water-distributing device part, Chi Tizhong is equipped with light filler, the top of light filler is provided with the filler baffle plate, there is class active sludge district the top of filler baffle plate, the top of pond body is provided with back flushing water inlet pipe and water inlet pipe, the bottom of pond body is provided with the back flushing rising pipe, the bottom of pond body is provided with rising pipe, this rising pipe is provided with the water outlet filter, also be provided with the gas main that aeration is used on the body of pond, gas main is connected with inlet pipe in the packing layer that is arranged on body middle and upper part, pond, this inlet pipe is provided with aeration head, gas main also be arranged on body middle and lower part, pond packing layer and be connected with back flushing inlet pipe between the rising pipe, also be provided with aeration head on this back flushing inlet pipe.Similar with this device, when BAF was in the market carried out back flushing, the common power requirement of backwash water was sent in the BAF, had increased energy consumption on the one hand, and equipment also seems not compact on the other hand.

Summary of the invention

The utility model is just in order to overcome above-mentioned deficiency, a kind of automatic flushing BAF is provided, it carries flush box, utilize the filter tank water outlet, automatically operation, automatically flushing, need not external force and can finish back flushing automatically filtrate, facility compact, specifically implement like this: wash BAF automatically, comprise the filtering basin body, the intravital filtrate in pond, the water distribution filter cap of filtrate below, distribution device in the catchment area, filtering basin body bottom, body top, pond is provided with water inlet pipe and vapor pipe, it is characterized in that a flush box places Chi Tishang and fuses with the pond body, and described flush box is connected catchment area, body bottom, pond by the intravital pipe connecting in pond, rising pipe places the flush box top, is equipped with a threeway on the water inlet pipe at body top, pond and is respectively arranged with water intaking valve and water discharge valve.During aeration filtration, drain shut valve, sewage enters from body top, pond by water intaking valve, pass through biofilter material from top to down, clear water is filtered the catchment area that cap enters body bottom, pond by water distribution, is entered in the flush box by pipe connecting, from the rising pipe outflow at flush box top again; When filtrate needs back flushing, close water intaking valve, the water discharge valve in the water inlet pipe threeway, the clear water in the flush box enters the catchment area through pipe connecting, carry out back flushing biofilter material in upper reaches behind the water distribution by water distribution filter cap, backwashing water is discharged through water discharge valve by the water inlet pipe at body top, pond.The operation of the gas in filtration and the backwash process all is to carry out gas distribution by the distribution device in the catchment area, pond body bottom, discharges from the vapor pipe at body top, pond then.

In order to realize filtering and the automatization that recoils, the utility model is provided with pressure transmitter in the pond body at water inlet position, described pressure sensor signal connects automatic control system, pass through pressure difference, automatically the operation of control back flushing, the automatic control system of this equipment also can be controlled common realization by pressure difference, time and be filtered and the automatization that recoils by design.

The utility model is realized the power-free back washing biofilter material by above the body of biological aerated filter pond flush box being set, and has saved power consumption, has reduced running cost, entire equipment compactness, processing efficiency height.

Description of drawings

Accompanying drawing is a structural representation of the present utility model.

Embodiment

Automatically wash BAF, comprise filtering basin body 1, the intravital filtrate 2 in pond, the water distribution filter cap 3 of filtrate below, distribution device 5 in the catchment area, filtering basin body bottom 4, body top, pond is provided with water inlet pipe 6 and vapor pipe 7, one flush box 8 places on the pond body 1 and with pond body 1 and fuses, this flush box 8 is connected catchment area, body 1 bottom, pond 4 by the pipe connecting in the pond body 19, rising pipe 10 places flush box 8 tops, be equipped with a threeway on the water inlet pipe 6 at pond body 1 top and be respectively arranged with water intaking valve 11 and water discharge valve 12, the pond body 1 at water inlet position is provided with pressure transmitter, its signal connects automatic control system, by the time of pressure difference and setting, control the filtration of BAF and the operation of back flushing automatically.

Claims

1. wash BAF automatically, comprise the water distribution filter cap of filtering basin body, the intravital filtrate in pond, filtrate below, the distribution device in the catchment area, filtering basin body bottom, body top, pond is provided with water inlet pipe and vapor pipe, it is characterized in that a flush box places Chi Tishang and fuses with the pond body, described flush box is connected catchment area, body bottom, pond by the intravital pipe connecting in pond, rising pipe places the flush box top, is equipped with a threeway on the water inlet pipe at body top, pond and is respectively arranged with water intaking valve and water discharge valve.

2. automatic flushing BAF according to claim 1 is characterized in that into the pond body at water position is provided with pressure transmitter, and described pressure sensor signal connects automatic control system.