An example of treatment of Cu-Cd slag by a lead-zinc joint enterprise replacement method in the former Soviet Union

Wu Siji former Soviet Union -卡敏诺哥尔Trask electrical lead zinc conglomerate zinc plant is to replace Cu-Cd precipitation process slag a centrifugal reactor, the production process shown in Figure 1.

Figure 1 Tungstensky-Kaminnogorsk electric zinc plant processing copper cadmium slag production process

The centrifugal reaction separator has a cylindrical shape and a hollow shaft at the center. The shaft is equipped with a special structure separation disc, and the rotation speed of the hollow shaft reaches 3000r/min.

The rate of displacement of the precipitate in the centrifugal reactor was more than 300 times the precipitation rate of the general displacement sedimentation tank, and the productivity per liter volume reached 200 L/h. The low-cadmium cotton obtained in the second-stage centrifugal reactor is dissolved with zinc waste electrolyte, heated to 343K, and the final pH of the reaction is 4.5-5.5, and then purified by KMnO 4 to remove the ruthenium , and then sent to the centrifugal reactor for replacement. cadmium.

PVC High speed Auto-Recovery Door


Product Description

Recovery High Speed Door/ Self Recoverable Roller Shutter/Aoto Repair Roller Shutter Door


Advantages:
The advantage of Self Reparing High Speed Doors are self-reparing,easy to clean,complete safe,energy
saving and so on. If the door curtain comes out of its guides(for example in the event of impact with a forklift),
the system will reset the cutrain back intp the guide during the next opening cycle autimatically
Product Description
PVC Curtain

Grey,Yellow grid,Purple,Green,Light green,Black,Perforated Yellow grid,White,Blue,White grid,Sky Blue,Yellow,Orange,Red

Color curtain:0.8mmthickness.
Transparent curtain:1.2mm.

Function:insect prevention

Door Size

Max Door Size: 8M Wide x 6M Height

Bottom Bar

Aluminum alloy 95mm width

Function:reinforce the crutain to keep the door opening without a hitch

Radar Sensor

The place on the cover box. Can detect 3 meters area!

Function: detect the moving thing and open the door.

For the place which has more people through.

Photocell Sensor Function:It's stop the door when the door is closing and someone through the door.
Drive System

High speed door motor: Germany brand(SEW)and Our own brand Hofic.

Germany SEW motor(380V/220V 50Hz 0.75KW,1.5KW,2.2kw.)

Our own brand Hofic(380V/220V 50Hz 0.75KW,1.5KW,2.2KW)

Control System

Control box:Include control system+PLC+transducer+encoder+airbag system.

Brand:Japan Mitsubishi and Our own Hofic

Function: all the control system are inside in it.

Cover Box

Material: Stainless steel201#or304#
To avoid corrosive thing corrode the roll and dustproof

Running Speed Opening Speed:0.8m/s - 1.2m/s(Adjustable)
Closing Speed:0.6m/s - 1.0m/s(Adjustable)
Opening Way Radar sensor+push button for People through
Magnetic loop+push button for forklift through

Main Accessories
Self-Repairing Door Curtain:
Made of reinforced PVC, with flexible weighted soft bottom edge.
The edge of curtain has continuous injection molded teeth that then move up and down in a self-lubricating
polyethylene track attached to structural galvanized side frames.


Auto Recovery Rapid Door,pvc machine protection high speed door,machine protection door,Recovery High Speed Door,Self Recoverable Roller Shutter,Aoto Repair Roller Shutter Door

SHENZHEN HONGFA AUTOMATIC DOOR CO., LTD , https://www.hongfahsrd.com