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BDZKG gravity air scrubbing multi valve filter

key word:Heat exchange element


Product description

BDZKG gravity air scrubbing multi valve filter

 

1. Introduction

Bdzkg gravity air scrubbing multi valve filter is a new type of filter which combines the air scrubbing function of valveless filter and mechanical filter. During normal operation, it can be operated as valveless filter (only the inlet valve is opened at this time); when the pressure difference of filter layer is large or the turbidity of effluent is slightly higher than the normal value, the air scrubbing function can be used to make the backwashing complete, so as to ensure the quality of effluent. The equipment is a steel assembly with compact layout, simple operation and convenient maintenance. The specifications of gravity type air scrubbing filter series of Jiangsu Bada Technology Co., Ltd. are 60-500t / h. The products of 80 t / h, 120 t / h and 160 t / h are mainly introduced here.

 

2. Main technical parameters

The main technical parameters of gravity air scrubbing multi valve filter are shown in table 2-1

Table 2-1 main technical parameters of gravity air scrubbing valve filter

Model diameter of filter capacity influent turbidity effluent turbidity reverse water supply intensity Air scrubbing strengthL/(M2·S Air scrubbing pressureMPa Operating flow rate
(∮) (t/h) (mg/L) (mg/L) L/(M2·S t/h
BDZKG-320 3216 5786 20 25 1316 1020 0.15 810
BDZKG-440 4416 110165 20 25 1316 1020 0.15 810
BDZKG-500 5016 155196 20 25 1316 1020 0.15 810

 

3. Technical specification for quartz sand cushion and filter material, anthracite filter material

See table 2-2 for technical specifications of quartz sand cushion and filter material and anthracite filter material.

Table 2-2 technical specification of lime sand cushion and filter material and anthracite filter material

diameter of filter Quartz sand cushion Quartz sand filter material Anthracite filter layer
Height Particle size mass Height Particle size mass Height Particle size mass
mm mm t mm mm t mm mm t
3216 200 26 2.4 400 0.51.0 4.8 200 1.21.6 2.2
4416 200 26 4.6 400 0.51.0 9.2 200 1.21.6 4.1
5016 200 26 5.9 400 0.51.0 11.8 200 1.21.6 5.3

 

4. Process principle

The inlet water of gravity type air scrubbing multi valve filter should be the water after coagulation and clarification, which flows by gravity, and the water passes through the water distribution device

It is placed in the equipment for natural filtration from top to bottom, and the filtered water flows into the clear water tank of the device for storage

After the tank is full of water, the clear water overflows from the water outlet and enters the water supply system. The process flow is shown in Figure 2-1.

 

5. Schematic diagram of gravity air scrubbing multi valve filtration

The schematic diagram of gravity air scrubbing multi valve device is shown in Fig. 2-2

 

6. Operation procedure table

The operation procedure is shown in table 2-3

Table 2-3 operation procedure table

Steps Operation contents inlet valve reverse discharge valve connecting valve drain valve intake valve Timemin Remarks
1 Discharging water from compartments
 
  Turn on   Turn on   2  
2 air scrubbing   Turn on     Turn on 5  
3 water backwashing   Turn on Turn on     5  
4 washing drainage Turn on     Turn on      
5 normal operation Turn on   Turn on        
6 Discharge unqualified water Turn on            
7 Valve No. D1 D2 D3 D4 D5    

 

7. Structure and nozzle size table

The structure and nozzle size of gravity air scrubbing multi valve filter are shown in table 2-4

Table 2-4 structure and nozzle size of gravity air scrubbing multi valve filter

Model BDZKG-320 BDZKG-440 BDZKG-500
Filter diameter (mm) 3216 4416 5016
Filter floor diameter (mm) 3260 4460 5060
Water inlet pipe diameter (mm) DN150 DN250 DN300
H1mm 3400 3550 3850
Outlet diameter (mm) DN150 DN250 DN300
Diameter of upper connecting port (mm) DN300 DN400 DN500
H2mm 2452 2740 2950
Diameter of lower connecting port (mm) DN300 DN400 DN500
H3mm 280 380 450
Diameter of compressed air inlet (mm) DN100 DN125 DN150
H4mm 925 1090 1250
Height of filter body H (mm) 6150 6500 7200
Load (T) 70 120 190