ZMG-4000
ZMG-4000

Batch operated horizontal counterflow mixer ZMG-4000 is designed for mixing of compound feed components after batch dosing. Mixer can be applied at the animal feed production plants and for production of enrichment mixtures.

Batch operated horizontal counterflow mixer ZMG-4000 is designed for mixing of compound feed components after batch dosing. Mixer can be applied at the animal feed production plants and for production of enrichment mixtures.

 

Specifications


Throughput                                                                                                 max 10…12 t/h

Storage capacity                                                                                         4 m3

Mixing homogeneity rate                                                                             max. 95 %

Mixing cycle                                                                                                4-5 min

Time for loading                                                                                          7÷15 sec

Time for unloading                                                                                      3…4 min

Rotor speed                                                                                                29,2 rpm

Rated power:

- mixer rotor                                                                                                22 kW

- unloading screw                                                                                       3 kW

* - gate valve of mixer unloading                                                                0,25 kW

** - gate valve of over-the-mixer hopper                                                    0,25 kW

* Mixer design versions provide different gate valve drive by pneumatic cylinders (optionally**).

Dimensions:

- length (without screw)                                                                             4055 mm

- width (with hopper)                                                                                  1740 mm

           (without hopper)                                                                              1430 mm

- height with over-the-mixer hopper                                                           4860 mm

- height without over-the-mixer hopper                                                      2375 mm

Weight                                                                                                        3400 kg/2800 kg

 

Structure and Functioning


Mixer consists of the following elements:

body – 1;

rotor – 2;

drive – 3;

frame – 4;

electric (pneumatic) gate valve of mixer unloading – 5;

unloading screw – 6;

** over-the-mixer hopper – 7;

** electric (pneumatic) gate valve of unloading over-the-mixer hopper – 8;

(**optionally).

 

Body-1 is represented by steel welded construction of semi-cylindrical shape. Windows closed with the covers are designed in the side walls of mixer body. Covers are interlocked with electric motor limit switchers and designed for repair works, visual inspection and periodic cleaning of mixer from the inside by scraping or pneumatic tools.


DO NOT turn off the limit switches on the covers during operating and maintaining the mixer. DO NOT continue to operate the mixer in case of limit switches failure.


Body dismountable construction allows rotor disassembling. Rotor-2 is represented by shaft with 4 spiral paddles: 2 internal and 2 external with opposite winding. Rotor shaft is supported by bearings installed on outboard supports of mixer housing. Drive-3 provides specified rotor speed from the electric motor through reduction unit. Frame-4 is represented by welded construction for mixer installation to foundations. Gate valve of mixer unloading-5. Compound feed mixture unloading is carried out through windows in the body bottom part, which are blocked by the gate valve during mixing process. Gate valve is represented by sheet, bent along the radius of mixer body. Gate valve is operated by electric or pneumatic drive. Gate valve opening may be regulated by limit switches. Unloading screw-6 is designed for compound feed mixture remove from under the mixer and transportation along the mixer to 1-1,5m distance for supply to the following mechanism (bucket elevator, conveyor).


Operation concept of the mixer is as follows: dosed components entering to the over-the-mixer hopper are storing up until a portion is reached. Further, products are quickly discharged to the mixer body for 8-12 seconds (short loading time prevents delamination of components), in the mixer body, components under rotation of the screw rotor are subjected to intensive back mixing by internal and external blades-spirals. On expiration of mixing time, gate valve opens and resulting mixture is directed by outer screws to the discharge point from the body and then unloaded from the mixer by screw.