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.

① Rotor
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 feeding machine to install the air-return mechanism if the opening on the top cover is connected to the exhausted system during feed mill installation.

Important Explanations on Muyang Machine

1. Documents
This Operation Manual and/or List of Spare Parts shall be provided to your working personnel in charge of operating and managing the equipment manufactured by Jiangsu Muyang Group. Therefore, it is very important to deliver these documents to them.

2. Acceptance of the goods
A check on appearance should be made immediately when the mixing machine is transported to the destination. If it is sure there is any damage caused during transport, a necessary claim procedure must be taken according to the supply contract. The repair expense shall be borne by relevant risk undertaker.

3. Storage
The equipment including grinding machine, mixing machine, extruder, pelleting machine, cannot be installed in predetermined place immediately, must be stored in a weatherproof place with facilities against external infringement in original packages. Any loss arising from storage shall be conducted as per the Contract.

4. Installation
The equipment and parts manufactured by Jiangsu Muyang Group shall be installed only by the trained technical personnel based on installation specifications provided together with the equipment.

5. Structure
If several structures are introduced in the documents provided, only the structures specified in Supply Contract shall be effective. We reserve the right of improvement before delivery.

6. Startup and commissioning
Startup and commissioning shall only be done by trained personnel. The operators shall know the instructions and operation regulations in provided documents before startup. Lubricating oil shall be filled before startup, such as oil for variable speed devices.

7. Accident prevention
The accident prevention rules in related documents must be well known and strictly obeyed. Jiangsu Muyang Group devotes to manufacturing machinery equipment according to the latest National Safety Standards and European Safety Standards (CE Certification Standards). Customers shall tell us the local safety rules before manufacturing. Additional expenses there from shall be borne by customers.

8. Maintenance/cleaning
Only professional persons can carry out maintenance and shall well know relevant stipulations in the documents provided by us. These stipulations are helpful for keeping the equipment in good condition, reducing wear and prolonging the service life. Cleaning shall be done according to relevant legal stipulations and explanations in the documents provided by us.

9. Quality guarantee
We are responsible for the quality guarantee specified in the Contract, but the precondition is: the real spare parts manufactured by Jiangsu Muyang Group shall be certainly used. Any losses caused by using the spare parts from other manufacturers shall not be borne by our Group. Any losses caused by improper operation or disobeying our operation regulations or wrong operation by untrained personnel shall not be compensated by our Group.

10. Education duty
The leaders of an enterprise owning the equipment from Jiangsu Muyang Group shall have the duty to allow the operators to know the operating instructions, and shall point out where the especial dangers are during operating these machines.

Operation Principle on MPJH Series Food Mixer

The rotor of the mixing machine is equipped with two paddles on each paddle-carrier rod, forming two circles of paddles (4 big paddles at special angles in the outer circle and 4 small paddles at special angles in the inner circle). The outer big paddles drive the materials to turn over leftward and rightward in the fast-flow zone and move in continuous circulars in the trough in all directions, keeping materials mixed evenly and rapidly under a strong convective mixing action; the small paddles also greatly increase the convective mixing at the slow-flow zone. In addition, the two circles of paddles can increase actions like diffusion, shearing and impacting mixing between material particles, so as to obtain fast mixing with high homogeneity.



Muyang MPJH series double-circle paddle food mixer consists of a rotor, a machine body, a reducing motor, a pneumatic discharging gate system, etc. The Overall structure is shown in following picture:

1. Top cover
2. Rotor
3. Machine body
4. Pneumatic device for discharge gates
5. Pneumatic control element
6. Motor and chain driving device
7. Access door

Adjustment on SFSP66K/A Series Paddy Husk Hammer Mill

SFSP paddy husk hammer mill is a special paddy husk grinding machine and used as associated equipment of the rice mill and used for grinding of other paddy husk concerned.

Adjustment of hammers: the hammer in rotor is arranged symmetrically. When installing the hammers, which must be arranged strictly according to requirements, the different weight of two groups of correspondent hammers must be not more than 2 g, two edges of hammer can be used for grinding. After two angles of hammer are worn, replace this hammer. In order to apply the hammer and sieve plate much better, it is proposed that the rotation direction of grinder rotor is changed once each shift for increase the service life of the hammer and sieve plate. When replacing the hammer mill, open the operating gate, loosen the handle of sieve keeping mechanism, put down the sieve keeping mechanism, loosen the bolts on upper sealing plate at two ends of grinder by inner hexagon spanner and screw driver, dismount the upper sealing plate, pull out the split pin on pin shaft, take out the pin shaft, and replace the hammer. After replacing, reassemble the split pin (in assembling split pin may be damaged, if damaged, it should be replaced), and assemble the upper sealing plate.

Adjustment of sieve plate: according to fineness requirement of ground materials, select the sieve plate with corresponding aperture. The sieve plate on the grinding machinery should be replaced timely if worn through or damaged, the sieve plate is set in from two sides and held down by hold -down mechanism.

Adjustment of gap between hammer and sieve: two sets of pin shaft holes are designed on rotor hammer frame plate, 4 groups each set. The arrangement radius of two sets of pin shaft holes is different on hammer frame plate, thus, one set among them used respectively will obtain 12mm and 10mm (ex -works 12mm) gap between hammer and sieve, which can meet the different grinding demand (generally, it is required that the gap between hammer and sieve should be processed based on ex-works gap, if find out the troubles such as sieve blockage and unstable electric current etc, or if higher demand for particle size, the 10mm gap between hammer and sieve should be processed).

Introduction and Development on Steel Structure

In recent decades, the former Soviet Union, the USA and Japan had always been the top three on steel output around the world. In recent years, with the implementation of China's reform and opening-up policy, our country had made rapid progress. During this period, China's steel production became the first in the world.

Light steel structure buildings have been widely used in factories, warehouses, stadiums, exhibition halls, supermarkets and other buildings in some developed countries. Light steel makes color plate as roof and wall, make thin-walled steel as purling and ring beam, and make weld "H"-shaped cross section as shot and beam, with bolted or welded splice of the door frame as the main structure, together with parts, fasteners, doors and windows.

Giant steel structure is a new system as high-rise building, which is designed to meet special features or comprehensive functions. It has good flexibility and potential efficiency, such as Japan’s NEC complex which is a giant space truss system with a strong anti-push rigidity. Another example is a new building built commercial banks in Frankfurt, Germany in 1997 which is the highest building in Europe. HSBC also belongs to a giant steel structure building.

Large span steel structure engineering is most used for versatile venues, convention, exhibition center Expo, terminal, hangars and so on. The earliest largest flat truss span is in California Coliseum, Los Angeles. The international community as well as China is using a popular wavy surface, the intersection of the tree as well as direct support JOINTS stereo truss system, looking majestic and beautiful. China Shenzhen Airport, Beijing Capital International Airport, Shanghai Pudong International Airport are all typical examples.

Notes on Application of Fire-Proof Paint

Fireproof spray protection project on steel structure should be constructed by trained and qualified team which can choose strict construction program according to the engineering characteristics and product selection. Physical and chemical properties of the coating can be carried out in accordance with the project which needs the required proportion for sampling.

Substrate surface on fire-retardant paint should be viewed as a strict process. And the people should clear dust, iron, rust, grease and other substances interfere with adhesion to take great measures on rust prevention. The bottom and surface on the fireproof paint should be correspondingly matched without rust steel.

The coating thickness should meet the value; the node position should be thickened. Spraying area requirements, component surface treatment, filling seams, paint preparation, spraying passes, quality control and inspection, etc., should be consistent with existing national standards "Steel fire-retardant application of technical specifications" (CECS24) requirements. If the coating crack is large, you should research and analysis process to ensure whether it is correct. Coating is also important in the whole steel structure engineering, so you must pay more attentions to it.

Consistency should be well controlled while coating, and the distance between air compressor and component. If there are many splash down things, that means the construction parameter is unreasonable and it should be adjusted. Paint thinner dosage is not too much, otherwise it will reduce the viscosity of the normal construction of the paint, and coatings cannot be attached to the structural steel surface.

In the coating application process, you must coat it after first basic coating is drying. Paint protection, construction of the number of times the thickness of the protective layer should be determined according to the construction design requirements, each pass coating thickness should be moderate, not too thick or roller evenly, so as not to affect the quality of the coating.

Five Tips on Light Steel Structure Construction

As the rapid development of light steel structure, more and more steel constructions are in the way. Well, this is certainly not a simple project, in which we have to study. Then, in the process of light steel structure building, what we need to notice? Here Muyang comes to you to answer this question.



First, when you use light steel construction, you must have a realistic construction plan. Any workshop can be greater after being given a blueprint. If there are any deviations in the plan, it can not only affect the construction process and construction achievements, but also will give the plant owners devastating blow, letting him lose everything.

Second, you must understand the specific configuration. The workshop using light steel structure must be with steel frames, roof trusses, pralines and wall spaces. If construction workers cannot understand the secret, it is impossible to successfully complete the installation tasks.



Third, while constructing the workshop, people must operate step by step. No matter what method is used to build factories, according to designed plan to achieve success is the only way.

Fourth, when you use light steel to construct workshop, you must take quality as top priority. You cannot ignore the quality as the light steel is easily installed. Light steel is an advanced scientific and technological achievement, and if you do not consider its advantages, it runs counter.



Fifth, the use of light steel construction must meet the acceptance criteria. When a construction team completed all the installation tasks, they should wait for the final judgment. Light steel structure engineering must meet the standards on each respect, which is a good start.

In process of building plan, we should have a more profound understanding that light steel structure is indeed a very advanced technology that can bring us benefits. Of course, if you understand the contents of Muyang solutions, you will be more pleasantly surprised to find that structural steel can also have such a big arena.

Muyang Steel Structure Engineering

Yangzhou Muyang Steel Structure Engineering Co., Ltd. was founded in 1996 and is one of the oldest nationally recognized fabricators in China. The steel structure engineering divisions currently cover a land area of 120,000m² with 54,000m² of covered shops. Under development is another 330,000m² that will house the new fabrication center and testing facility. The current capacity for structural steel can reach 3,000 tons per month, but this capacity will be increased in 2011 with a target of 5,000 tons of column and beam, and other special application structures. Muyang serves petrochemical, power, mining & metal, oil & gas, agriculture, and industrial manufacturing industries. (This paragraph is from : http://www.steelmuyang.com/Article.aspx?Id=144664331014)

As those steel structures widely used in developed countries, Muyang steel structure is characterized by its high strength, light weight, good antiseismic behavior, short construction time, low cost of groundwork, small area needed, fine outside view and so on. Compared to a conventional concrete structure, it's friendlier with environment, more re-utilizable and easier to be industrialized in fabrication.

Strong in experienced engineers and installation teams for structural steel, MSSE have undertaken and successfully completed lots of steel structure items such as the main workhouses, raw material warehouses and finished project storages, large or small, for various feed mills both at home and broad.

Muyang Steel Structure With CE Certification

Muyang steel structure has passing CE certification which is not allowed unless the Factory Production Control (FPC) system under which they are produced has been assessed by a suitable certification body that has been approved to the European Commission. In terms of a load bearing structural frame, most construction projects will generally consist of structural steel, concrete, masonry, and/or wood, using an infinite combination of each to produce an efficient structure.

Structural steel is one of the most commonly used materials in commercial and industrial building construction. And structural steel can be developed into nearly any shape, which are either bolted or welded together in construction. When in contact with water, steel structure can corrode, creating a potentially dangerous structure.

Muyang steel structure has done many large projects on airports, exhibition halls, stadiums and so on featuring truss and grid construction. And Muyang has an average monthly production of 6,000 metric tons and a maximum capacity of 8,000 metric tons per month. In keeping with its corporate spirit featuring innovation, responsibility, cooperation and efficiency, Muyang will continue its persistent efforts aimed at "laying a solid foundation for a century's glory by creating a world-class brand".