The SJHS2A Double-circle Mixing Machinery 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.

STHJ Paddle Molasses Mixer is widely used in feed, cereal, food, chemicals, medicine and pesticide industries, and suitable for mixing mash feeds (adding molasses) in feed mills, so that all the ingredients can be uniformly distributed and the quality of the compound feeds can be ensured.

The power is transferred from the motor to the rotor via sprocket. The molasses o the feed machinery is blown into the mixer by steam. The paddles are regularly staggered on the rotor along axial and circumferential directions in a certain angle to the rotor, so that a helical surface is formed between the paddles. When working, the rotor brings the feed to roll over and meantime push them to the discharging outlet.

Molasses is blown in by steam via molasses adding pipes. The heating temperature of the molasses mixture shall be 32℃~38℃, and its viscosity should be less than 200 CP. The steam temperature shall be 130℃ and the pressure shall be 0.3MPa.

The mixing machinery is with new rotor structure, and the gap between rotor and trough is adjustable. The machine is equipped with molasses adding port with beautiful appearance. It fits for adding molasses into completed mash feeds or being used as molasses adding device before pellet feed production.

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.

The extrusion provides for production of many products with great superiority in comparison with other technologies. Because it almost integrates functions of different equipments in a single process when extruding, the procedures of mixing, extruding, cutting, cooking, forming and drying process in a certain degree can be carried out at the same time.
The principal machine of the extruder machine is mainly composed of supporting framework, belt wheel guard, motor base, main motor, lubrication circuit, base, slide rail support, cutting device, suspended pull rod assembly, slide rail, lifting tackle assembly, extruding assembly, by-pass and front support of conditioner.
Principal machine of the extruder machinery is the core of the whole extruder system. The extruder is used for processing different materials, such as cornmeal, soybean flour, piglet feed and soybean meal. The properties of some materials are widely different, for example, the cornmeal has high starch content, the soybean flour has high fat content but no starch content, therefore, when an extruder processes different materials, in order to get good qualities of final products and good productivity while the extruder processes certain material, it needs to configure different configurations for different material properties. The selections of different configurations generally refer to as the selections of different pressure rings, screws, discharging devices.

An extrusion machine is a device which pushes or pulls a material through a shaped die to form a continuous length of product with a preset cross section. The extrusion process is used to produce a large number of commercial products which include steel or copper wire, plastic tubing, plastic sheets, and many food types. Extrusion as a manufacturing process offers many benefits such as the wide range of complex cross sections possible and the ability to form brittle materials. Depending on the material used, an extrusion machine may form the material cold or hot with some types of materials being completely melted prior to extrusion.
The simplest example of extruder machinery is a bakers piping bag. The bag is filled with icing and a fitted with a decorative piping nozzle. If the bag is squeezed, the icing fills the nozzle and is forced out or extruded as a continuous length with the same cross section as the shape of the nozzle opening. This is the same basic principle as industrial extruding machine used to form many products using plastics, metals, and food or pharmaceutical ingredients. The only real departure from this simple example is in the complexity of the cross sections, the inclusion of hollow cores, and the fact that some machines draw the material through the die rather than pushing it.
An extruder machine can be used to produce a wide variety of products from an equally large range of raw materials. It is also an attractive alternative to other manufacturing processes as it allows for a larger selection of profiles and is suitable for use with brittle materials. In industrial applications, plastics are extruded to produce food packaging film, cladding sheets, insulation, automotive parts, and tubing products such as electrical conduit and plumbing pipes. Steel and alloys are extruded to form rods, pipes, and wires as well as steel conduits and construction members for light engineering. The food and pharmaceutical industries also make extensive use of extrusions in the production of products such as pasta, cereals, cookies, and several drug carriers.

In several extrusion applications, particularly those using plastics, the material to be extruded needs to be heated to melting point prior to being used. These applications typically use a screw feeder mechanism similar to those used in the injection molding process to heat and feed the material. Cold extrusion is also a common extrusion process and is normally limited to metals such as tin, lead, steel, aluminum, and copper. Cold extrusion has several benefits over the hot process such as a lack of oxidization, better surface finishes, and quicker extrusion times. A cold extrusion machine is used to produce items such as automotive pistons, steel cylinders, tubing, and gear blanks.

STHJ paddle molasses mixing machinery is widely used in feed, cereal, food, chemicals, medicine and pesticide industries, and suitable for mixing mash feeds (adding molasses) in feed mills, so that all the ingredients can be uniformly distributed and the quality of the compound feeds can be ensured.

The power is transferred from the motor to the rotor via sprocket. The molasses is blown into the mixer by steam. The paddles are regularly staggered on the rotor along axial and circumferential directions in a certain angle to the rotor, so that a helical surface is formed between the paddles. When working, the rotor brings the feed to roll over and meantime push them to the discharging outlet.

The machine features:

***New rotor structure, no dead corner of mixing, high mixing homogeneity
***The gap between rotor and trough is adjustable.
***Cleaning door is furnished, convenient cleaning in working room.
***The feed mixer is equipped with molasses adding port, beautiful appearance and easy operation and maintenance.
***Continuous mixing, higher efficiency.
***Fit for adding molasses into completed mash feeds or being used as molasses adding device before pellet feed production.

A principal advantage of using extruding machine to make aquafeeds is that it permits sinking and floating diets to be produced on the same equipment.

If some floating feed is generated during the production of sinking feed, the following measures can be took for troubleshooting:

1. Readjust kneading elements to make all the kneading elements arranged to feed reverse;
2. Replace the short twin-screw and kneading element with middle section singe screw and remove the shearlocks;
3. Add a vacuum pump for creation of vacuum at the pressure relief opening;
4. Add density control equipment at discharge outlet;
5. Reduce the rotation speed of the principal machine of extruder.

Generally, configuration 1 is more economic without adding any accessories, but have little effect; configuration 2 has good effect and only needs to replace one section screw, it also was employed on MY165 extruder machinery for producing sinking river crab feed which is more difficult to be manufactured, even so, at given formula the obtained end products delivered good quality with conditioner temperature maintaining above 90 , while the conditioner temperature can only remain about 80 and some floating end products were produced when configuration 2 was not used; configuration 5 is theoretically feasible, but it needs to replace belt disc to control the rotation speed of main machine due to the absence of frequency-transformer on single screw extruder, which is relatively more complicated for application; configuration 3 and configuration 4 are of relatively high cost, and if addition of equipment took account configuration 4 is recommended which provides good performance and easy operation.

In general, final biomass pellets which is made biomass pellet machine is dry, hard, durable and after combustion. With low amounts of ash, we say the biomass pellet is high-quality pellet. Comparing to raw feedstock, properties of biomass Pellets which usually have some advantage than others. For example, biomass pellets made by biomass pellet machine can not only be easily handled or used in some important feed making systems, but also the biomass particles contains more energy.

Biomass pellets can be used to burn to provide energy which it is more attractive for use because of the combustion of sustainability and less pollution. The most common diameters of biological particle is generally 6-8 mm and maximum diameter is generally not more than 38 mm if diameters of biomass pellets are over 25 mm, we call them "briquettes" but rarely appear. Wood particles are the typical of biomass pellets.