3/09/2015

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.

3/05/2015

Extruder Working Procedure and Extruding Principle

Firstly the mash that has been formulated and pulverized should be conveyed into the anti-bridging bin. When the extruding machine is working, the material in the anti-bridging bin is continuously fed into the different diameter cylinder conditioner by the feeder. On the other hand, metered steam, water and other liquids should be added evenly and continuously into the conditioner while the material is entering the conditioner.

Material being conditioned for a certain period will flow into the feeding section of the extruder chamber. In the feeding section, the material is primarily compressed and conveyed to the kneading section. In the kneading section, the material is gradually ripened or dissolved under the comprehensive effects of strong agitating, mixing and shearing. After entering the final ripening section, the pressure as well as the temperature rise gradually, which will enable the material to be ripened further, resulting in further gelatinized starch, denatured fat and protein, and homogenized non-crystal texture. Finally, the material will be extruded out of the die and then cut into pellets.

The three sections of extruding assembly can be adjusted depending on the production requirement. The extruding screw pushes material to pass through the whole extruder machinery chamber. And mechanical energy generated by the rotating screw will be transformed into heat energy through the frictional interaction between the material and extruder parts as well as the frictional interaction of material particles.

When this doughy material is extruded to pass through the die holes at the end of the extruder chamber, it is processed to a certain shape. Due to the great pushing and mixing effects of the screw, the material in the chamber is at a certain pressure and temperature, which will evaporate water to make material expanded momentarily when extruded out of the die holes. The more the water evaporated the larger expansion of extruded product, and vice versa. So the product expansion is controllable, and the required expansion extent can be obtained through adjusting each operation parameter strictly. The production of low-density products depends on material composition and the processing conditions. In such case the product will be greatly expanded and kept in a corresponding shape and dimension.

When producing products with high density, the products will be slightly expanded depending on the pressure relief opening provided on the extruder machine barrel as well as the processing conditions (including increasing water content, reducing extruding strength and temperature).

3/04/2015

Process of Complete Wood Pellet Production Line

Raw materials Preparation
Wood pellets can be made from sawdust, wood shavings, wood chips or wood logs, any forestry wastes or biomass straws, stalks, etc.

Raw Material Crushing Process
Crushing machine is used for crushing the larger materials into smaller powder for supporting produce wood pellets. Wood crusher is ideal equipment for crushing raw materials like square logs with diameter less than 200mm; if the material has a diameter less than 50mm, then wood grinding machinery is the best choice. The best thickness of the wood chip is less 5mm. After milled, the output size can reach diameter 3-5 mm, which is convenient for further processing to get dried and pelletized.

Biomass Material Drying Process
The best moisture content to pelletizing is about 11-17%. So before pelletizing, a drying machine is needed to make the moisture content reaches the required standards.

Wood Pelletizing Process
Pellet mill is the significant part of the wood pellet production line, and has reliable and stable performance. Capacity ranges from 1T to 10T per hour. You can choose ring die pellet mill or flat die pellet mill depend on your capacity requirements.

Wood Pellet Cooling Process
After pelletizing process, the temperature of wood pellets is between 60-80 degrees and the moisture content is close to 15%. So a cooler must be used to reduce their surface temperature and the moisture content which makes the wood pellets easy to store, meanwhile helps screen good and pure pellets.

Wood Pellet Packing Process
After the cooling process, packing process is necessary to protect the wood pellets from the damp. Muyang automatic wood pellet weighing & packing system adopts PLC control with high weighing accuracy and easy operation is your best choice.

3/03/2015

Muyang Pet Food Project

Muyang is the integrated solutions provider of high quality pet food project. Our research focuses on developing efficient pet food manufacturing technology and feed machines to improve the palatability, nutrition value, quality and safety of pet food.


Muyang pet food manufacturing technology helps customers present their formula in the shape, size, palatability, extrusion rate and moisture content of the product, and satisfy clients' demand in color, oil coating, pulp coating, powder coating and end product automatic color/material blending.

Following the concept of creating value for clients, Muyang Pet Food Company helps you manufacture better pet food and reduce manufacture cost to the most extent to obtain maximum value.

Our clients include Bridge, Sanpo Pet, Fubei, Huaxing, Wanpy, Singen, Navarch, Vitakraft, Burgess, Bachoco, ERE, ABIS, Bioalimentar, Agrizoo and Unicharm.

3/02/2015

FAMSUN Service Tour Program welcomed in Vietnam

At its first stop in Vietnam December 2014, the FAMSUN Southeast Asia Service Tour Program was warmly welcomed by local feed manufacturers.

According to Muyang, the Service Tour Program was launched by its FAMSUN Feedmill Solution. The specialists' team used to take a tour across North Vietnam market and more than 10 feed mills were served last March and April. This time, the team went across the whole country and brought a full-service to more customers, no matter they are local buyers or foreign investors such as New Hope, Tequ and Tongwei from China.

The full-course service includes feed machine trouble solving, operation and maintenance skills training, and production lines improvement advices. After the work is done in Vietnam, the service tour will head towards Thailand, Myanmar and other Southeast Asia countries.

As the traditional value-added Customer Care program, Muyang's service tour program can go back to 2008 and be seen on China and other international markets in feed mills, animal farms, grain storage terminals, etc.

2/28/2015

Muyang honored with Best Enterprise Award in Talents

A joint statement from Business Review and Beisen Evaluation Company recently honored Muyang as one of 6 Best Enterprise Award winners across China in recognition of its achievements in Human Resources management. Other winners are BEIQI FOTON MOTOR CO. LTD., CNOOC and Hisense Group.

The scrutiny consists of Human Resources management and employee devotion, career opportunities as well as training and continuing education practices. The winners are without doubt the "TOP Employers" in China.

For many years, Muyang has dedicated itself to the mission of "Creating value for customers and making our staff dreams come true". In order to play a vanguard role in Human Resources management, generating sustainable growth with a good team by creating satisfied customers, Muyang has devoted a lot of energy to the intensive training and development of its own employees.

Muyang Business School was established in 2009, and since then, a systematic develop program applied to every employee had been launched. Knowledge, skill and experience subject to machines, technologies, services, sales, management as well as foreign language are shared and learned through trainings, online courses, and in practices. All of these help to create a competent, motivated and long-serving young team.

12/16/2014

How extrusion become profitable for piglet feed

If you have an improved, cheaper and safer end product you will have the edge over competitor and eventually your profit ratio. For feed manufacturing industry, technology that help feed manufactures keep leading in the industry has become the primary consideration for making the investment decision, be it greenfield or upgraded project.

For livestock feed production, pretreatment technology is very important, and the basic type of processing used within feed mills usually is pellet conditioner. As concerns over feed cost increased, new pretreatment technologies are asked to widen the scope of available raw materials. And higher standards on feed nutrition and feed safety in breeding farms also require improved technologies and equipment for production, especially for young animal feed. For these reasons, expander used in pretreatment has become more and more popular in processing lines. However, gelatinization level of end product of traditional expander is limited to 60%. When requirement to starch gelatinization comes up to 70~75%, extruder is a better choice than expander, but it also faces problems of reduced output and increased energy consumption.

As a technology problem solver, Muyang introduces a new technology specialized for piglet feed production. The so call "fully extrusion and low-temperature pelleting system" may initially be more expansive than the expander and pelleting system, but when makes a simple comparison of the increased profit from high quality end product and the reduced tonnage power consumption, it can normally be shown to be cost effective, and this is without taking into account the probable increased efficiency of the extruder machinery itself.

Feed intake efficiency comparison

Results of tests demonstrated that piglets fed with feed produced by fully extrusion and low-temperature pelleting line showed significant improvement on feed intake, weight gain and intestinal health. It is because:
1) Fully extrusion process can achieve products tasty flavor and better palatability;
2) Fully extrusion and low temperature pelleting can diminish nutritional ingredients loss during processing, and ensure enough nutrition and energy for weanling pigs, resulting in increased weight gain;
3) Fully extrusion can contribute to higher starch gelatinization and eliminates the effects of anti-nutritional factors and toxins, which is good for intestinal health.