Structure of Main Working Components on Paddle Mixer

The mixing machine consists of rotor, machine body, machine housing, speed reducer, upper cover, liquid application device, access doors, etc. The rotor is installed on the machine body through the two bearings (with pedestal) at the shaft ends. It is driven by the output hollow shaft of the reducing motor. A discharge gate is installed at the bottom of machine housing, whose opening or closing is controlled by pneumatic cylinders according to the mixing cycle. The access doors for cleaning and maintenance are on the upper part of machine housing. There are two feeding inlets on the top cover of the mixer for adding major materials and additives separately. The air-return mechanism is installed between top cover and the machine bottom.

①Rotor
The rotor on the paddle mixer consists of a main shaft, four paddle assemblies (each of which is made up by a group of big and small paddles of different angles and welded to the stay bar and bar bottom cover ), end covers and stainless steel sheets.

②  Bearing and shaft end seal
The rotor is supported and installed on the machine body through the bearings at the shaft ends, and the seal at shaft ends is guaranteed by transparent cover, seal packing as well as gland.

③  Discharge gates and the control
The discharge gate of the feed mixer is connected to the shaft of discharge gate by the gate support arm, while the driven rocking lever (rocker arm) is connected to the shaft of discharge gate by key. The cylinder hinge is connected to the driving rocking lever which, on the other hand, is connected to the driven rocking lever through a connecting rod. When opening the gate, the piston of cylinder is retracted to drive the driving rocking lever rotate counterclockwise, while the driving rocking lever drive the driven rocking lever rotate clockwise through the connecting rod, so as to open the discharge gate. When closing the gate, the piston of cylinder is pushed to drive the driving rocking lever rotate clockwise, then the driven rocking lever rotate counterclockwise, till the three holes that on the driving rocking lever, the connecting rod and the drives rocking lever sight alignment, the gate is closed.

④  Sealing of discharge gate
There are sealing members surrounding the discharge gate frame at lower part of the housing. When the gate is closed tightly, the side of the discharge gate clings tightly to the silica strip on the sealing member, and the discharge gate is sealed by the compact silica strip to prevent material in the mixer from leakage.

⑤  Liquid application device (if optioned)
The liquid application system is installed above the top cover and consists of pipe and nozzles etc. Several nozzles are evenly distributed on the pipe. The liquid application system can be able to move up and down for easily cleaning and replacing nozzles. Muyang mixing machines are all with full equipments and the standard application amount is 2% for one pipe, please note in the contract if you have different requirement. When adopting the atomizing spraying nozzle, liquid will be sprayed out from nozzle in a segment shape through the compound effect of atomization and compressed air. 

⑥  Protection device
Interlock safety device should be installed on the cleaning gate to ensure the motor cannot be started when the cleaning gate is opened, so as to prevent accident during working.

⑦  Air-sac blowing device (if selected)
Whether to switch on/off the nozzles for supplying compressed air on the pipeline is controlled by two pulse solenoid valve which are controlled by pulse controller. The compressed air spraying onto the rotor and trough continuously through the series nozzle on the pipeline inner the  chamber, which will clean material residues away the mixer so as to minimize material residues in the mixer.

⑧  Air-return mechanism
The air-return mechanism is a filter pocket with a skeleton that used to connect the mixing chamber with ambient air. When feeding material into the mixer, the compressed air in the mixing chamber is released through the air-return mechanism into ambient air and balance the pressure in the chamber; when discharging, air pressure in the chamber is decreased, and ambient air is induced into the mixing chamber, and balances the pressure in there as well. Generally, it is unnecessary for the feed machine to install the air-return mechanism if the opening on the top cover is connected to the exhausted system during feed mill installation.

Production Process with Paddle Mixer

The SJHS2A Double-circle Paddle Mixer is widely used for mixing powdery and special granular materials in feed industry. Mixing machine is playing a vital role in feed production. It is fair to say that if proportioning system is disjoined from mixer, even with advanced manufacturing processes, the production will become meaningless. Therefore, the quality and performance of mixing machine directly influences survival and development of feed mills. Stable-performance equipment not only helps enterprises to keep making profits but also reduce large sum of money for maintenance and repairing.

(1) Feeding

Solid materials
The materials can be directly fed from the bin (see Fig.2-7 005) controlled by a lock gate (see Fig.2-7 006) after weighting with the proportion scales (see Fig. 2-7 001), and also can be fed via a covering equipment or via an operator (see Fig.2-3 003) at the manual dumping bit (see Fig.2-7 004).
Liquid (if necessary)
Liquid is generally fed into the mixing machine via the liquid addition system (see Fig. 2-7 010).

(2) Discharging

The mixtures conveyed from mixer (see Fig. 2-7 007) shall be collected by a surge bin (see Fig. 2-7 008);
And the volume of surge bin should be 1.5 times more than that of feed mixer. The surge bin usually has an access door (manhole) and a glass inspection window; the lower part shall have a lock gate or conveying equipment (see Fig. 2-7 009);
The upper end of air-return duct (see Fig. 2-7 009) is connected to the surge bin or that above the scale to ensure stably feeding. In addition, the surge bin shall be removable for maintainability; the environmental protection equipment can be equipped at the outlet to prevent dust pollution of the surge bin.

Specification of the Mixer

If you have got Muyang mixing machine, you would notice some tips when you operate it. Following are some basic specifications:

(1) Material characteristics
Particle size of materials: Length of edge shall be less than 10mm
Bulk density: 0.15~0.8 t/m3
Total liquid addition: less than 3% among which sticky liquid such as molasses: less than 1%

(2) Environmental conditions
① Ambient temperature range (-10~+40℃)
② Relative humidity range: 30%~85%
③ Altitude: Less than 1000m
④ Temperature range for normal transportation is:-25～55℃
⑤ Air supply for normal use is above 0.6Mpa
⑥ Electric supply for normal use: AC380V
Note: if the actual condition fails to accord with the environment condition ①, the temperature shall be adjusted properly. If it fails to accord with conditions ② and ③, a speed reducing motor shall be customized. If it fails to accord with condition ⑥, please refer to the motor nameplate.

(3) Configuration conditions
① The paddle mixer should match the equipments before and after it in process flow.
② Configuration shall be carried out within the power supply for normal use (permissible voltage deviation ±5% and frequency deviation ±1%).
③ The user must configure an over-voltage protection device for the power supply.
(4) Noise testing during normal production.

Muyang SJHS0.5B Double-circle Paddle Mixer

Environment conditions
In order to operate this paddle mixer safely, please install it according to following operating conditions.
(1)Please install this equipment indoors according to following conditions:
Ambient temperature range (-10~+40°C)
Relative humidity range: 30%~85%
Altitude: less than 1000m
Guarantee indoor cleaning and ventilation
Guarantee that the equipment is far away from the corrosive gas, inflammable and explosive gas as well as steam
(2)Power source: as for Voltage and Frequency, please refer to the nameplate; pressure ≧0.6Mpa.
(3)For easy use, operation and maintenance, please check this equipment and reserve enough space for it.
(4)Please place the mixing machine horizontally.
(5)The vibration to be borne under effects of many complicated environments may not exceed 12 mm∙s.

Description of warning marks
(1)In order to well understand this operation Manual, the safety warning marks are divided into following kinds.
(2)These warning marks have been worked out according to the operating regulations and safety attention points for this equipment. In order to avoid dangerous accidents, this Operation Manual also includes concrete preventive measures. Please operate this equipment according to the instructions based on sufficient understanding of warning marks.

Description of safety marks
(1)Relevant safety marks are pasted on different corresponding positions of this feed mixer, which are property dangerous to personal safety.
(2)All the safety marks are indicated. Please carefully understand and install, adjust, operate, maintain and inspect this equipment.
(3)Please place these safety marks near the equipment.
(4)When these safety marks have fallen off or been damaged, please replace them with new marks.
(5)If you want to order new marks, please contact our company.

Muyang MPJH Series Food Mixer

MPJH Series Double-Circle Paddle Mixers are widely used for mixing powdery, granular, flaky, lumpish, sticky and miscellaneous materials in food industry, and also for drying and cooling different materials.



Features

1. The rotor adopted is in our unique proprietary double-circle structure, which is characterized by its short mixing period and high mixing homogeneity, for common materials the mixing homogeneity is CV≤5% or even up to 2%~3% within 45s~60s. So, the mixing time is shortened and the production efficiency of the feed mill can be greatly improved;

2. Large variable range of filling factor: 0.4~1, applicable for mixing the materials with different specific gravity and granularity etc. in food industry;

3. Our unique proprietary technology for sealing is adopted for shaft-end sealing mechanism, featuring reliable sealing performance, long service life and free of leakage;

4. Fast discharge and little residues: the discharge gate on the mixing machinery is in a bomb-type full-bottom double-leaf structure, so the discharging is fast with little residues;

5. For the sealing mechanism of discharge gate, our unique patented technology of air-sac sealing is used, which can make up the defect of gate body deformation, and it is reliable for sealing and free of leakage;

Operating conditions

1. Operating under normal temperature and pressure;

2. The front and rear corollary equipments for mixing machine should be matched in technology.

Muyang SLHSJ Series Twin-Shaft Paddle Mixer

Over the years, Muyang quickened its pace in technological innovation ans imported a considerable number of advanced machine tools to ensure manufacturing efficiency and the processing precision of products. Also, Muyang can provide you with best service, including technical consultation, equipment selection and installation supervision, commissioning and personnel training, trace investigation of products and clients, periodic client visiting, routine maintenance of machine products, and trouble remedy and on-site repairing.

Mixing machine is playing an important role in feed production. Here I would introduce you Muyang SLHSJ series twin-shaft paddle mixer which is a highly efficient mixing machine for most industrial blending applications, premix / additive / feed in particular. It has four great characters:

Wide application
Suitable for various blending applications such as premix, additive, feed, food, cement, chemical and pharmaceutical industries.

Stable and efficient
Low speed and gentle mixing, stable running and no segregation; High homogeneity (CV≤3~5%) with shorting mixing (45~60s) and discharging time.

Hygienic design
Fully-open doors and W-shaped trough plus unique air-sac seal, momentary discharging, minimum residue, no leakage; optional stainless steel design.

Ease maintenance
Large access door and optional air-clean device, ease of cleaning and maintenance.

Muyang Double Circle Paddle Mixer

Double-circle Paddle Mixer is a efficient mixing machine independently developed by Muyang Group and has a international patent. It has the advantage of fast mixing time, high uniformity, less residue, etc., and it obtains national authoritative organization testing.



Main usage:

Double-circle Paddle Mixer is a new efficient, high-precision particle mixing equipment, it is widely used in chemical, pesticides, dyes, medicines, food, feed, petroleum, metallurgy, mining and other industries. Muyang double-circle paddle mixer has mixing homogeneity of 97.7%(i.e. CV value =2.3%), natural residue percentage of 0.1%，and unit power consumption of 0.30kW*h/t.



Main feature:

1. Advanced structure, convenient operation, safe and reliable operation.
2. High mixing speed, and uniform quality. Adjustable gap between paddle and casing, ensuring extremely low residue ratio, avoiding materials cross contamination; fully open discharging gate, mixed materials are discharged completely in no time, no residue.
3. Significant energy saving effect, the machine energy consumption compared with the drum mixer is only one-tenth.
4. Heat-sensitive materials are without overheating mixed reactions.
5. Stable mixing stratification and without segregation.
6. The machine's discharge door is using silicone seals to ensure without leakage, and it can be worn with more sustainable life.