All kinds of traditional Chinese medicine, especially precious Chinese herbal medicines by crushing, mixing, made of pill taking, which is the patient and the pharmaceutical sector are willing to accept the method. But the large and medium sized Pill Machine tens of million or even ten million, beyond the reach of ordinary users. To this end, our factory develop and produce out of the machine, nearly ten thousand units have been put in the national market. The machine can produce honeyed pill, Pills, Water honeyed pill, Shuiwan, pill-shaped food, but also coating and drying.

Functions of pelleters

• PLASTICS Preform pellets from thermosetting plastics, phenolics, ureas and melamines.
• FOUNDRY Foundry flux tablets .
• Compaction of metallic powders prior to melting.
• LEISURE Swimming chlorination and chemical treatment blocks.
• PYROTECHNIC Rocket propellant tablets and smoke grenade tablets.
• AGRICULTURAL Salt lick tablets for cattle.
• NUCLEAR Compaction of radioactive powders.
• CARBON Compaction of fine powders.
• MOTOR Pre-compaction of brake pad materials.

Molten material flows from upstream processing via a steel belt moving at a uniform velocity. The upward spray cooling and water returning device is provided below the flaker belt to ensure that the molten material spread uniformly on the belt may be cooled and cured in the course of being conveyed to the discharge end. On the basis of the properties of the material and requirements for use, different operating modes and mechanisms for intermittent dropping, continuous bar output or full-width overflow may be selected for the material distributing device so as to yield hemisphere, strip or flake shaped products.
The plant is applied to products with a melting point below 250^oC for curing and shaping.
Typical applied materials include: sulphur, paraffin wax, resin, asphalt, maleic anhydride, trimellitic anhydride, salt stearate, hot-melt adhesives, m-phenylenediametermine, urea, rubber and plastic auxiliary.

This competency covers the operation of granulation equipment . It applies to a range of plastics and rubber sections where virgin or recycled material is processed into granules for further production. This competency is typically performed by operators working either independently or as part of a work team. This competency in practice This competency applies to operators who are required to apply knowledge of materials, product purpose and processes to the operation of granulation equipment . The key factors are the production of material meeting quality standards and product requirements. It includes: · checking job sheets for work requirements and preparing for production · following approved hazard minimisation procedures for any hazards connected with materials and process, using work instructions, labels and materials safety data sheets, and in accordance with occupational health and safety legislative responsibilities · checking granulator settings and adjustments · identifying and taking action on routine process problems · checking materials for quality and conformity to product requirements · discarding non conforming materials ensuring discarded materials are reused where possible and waste and scrap is disposed of in accordance with workplace instructions · cleaning granulator after product/grade change or preparing granulation equipment for maintenance · completing logs and reports.

A plastic granulator is a machine used to break plastic products down so they can be recycled. Recent surveys report that discarded bottles, bags, packaging, and other plastic products represent as much as 40% of the solid waste tossed out by residents in communities across the nation. Unfortunately, plastic is not biodegradable. Therefore, it does not break down naturally to become part of the earth. This means recycling is the only option for reducing the amount of plastic in landfills.

A plastic granulator operates much like a large shredder. It turns full sized bottles, jugs, and other plastic products into flakes, or granules. The material produced by the plastic granulator is later sold to molders and manufacturers of plastic products as recycled raw material. The recycled raw material can be used to make new plastic items. Aside from aluminum and glass, plastic is the only material capable of being reprocessed into new items that are of the same quality as the original.

A plastic granulator is comprised of a large electric motor that turns a rotor. Cutting blades are attached to the rotor and encased within a closed chamber. These blades and chambers are available in numerous shapes and sizes. When used plastic material is placed inside the chamber, the rotating blades shred it into granules.

A screen is also located inside the chamber. It serves as a shifter, ensuring the plastic is small enough to be resold. If the plastic pieces are larger than .125 to .375 inches (0.318 to 0.953 centimeters), they are reprocessed until they are small enough.

A plastic granulator is rated by pounds per hour, which refers to how much it can shred within an hour. For industrial recyclers, the chamber of the plastic granulator needs to be large. It is, however, possible to purchase a plastic granulator for home or small business use. It is important to note that these machines can be a dangerous, no matter how small. Therefore, it is important to follow the precautions provided by the manufacturer.

In order to properly maintain a plastic granulator, the user must keep it clean. Otherwise, it will not produce the desired small granules of plastic. The blades of the plastic granulator must be oiled periodically. In addition, the inside of the chamber needs to be wiped clean, including the screen. In fact, it is best to remove and clean the screen after every large job the machine completes.

The steel belt conveyor is used when you’re dealing with high peak loads, for instance domestic or industrial waste. The heavy steel construction ensures long operational life of the frame and steel belt. The steel belt conveyor , the transport chain and the seals on both sides of the steel belt form a unique whole. The sections of the belt have been given a special shape so it can accept a heavy load. A fully automated production process ensures consistent quality. A motor reductor provides the drive. There are many different options in regards to bale lengths, speeds, heaviness of construction and widths.

CF type pastillator condensing belt features:
1. Uniform particle shape and size is conducive to transport, storage and use and is conducive to the production and use of the process of improving the environment of operating conditions and product quality.
2. Using a thin strip of heat transfer and enforcement atomized spray cooling, hot-melt material to make rapid condensation, curing, improved production efficiency.
3. The use of fabric and steel drive stepless adjustment can be based on production capacity and material properties were controlled for.
4. Step-by-step temperature controller used to control the temperature, so that the state of materials and material temperature stability, reliable quality assurance granulation.
5. As the strip for the discharge end to bending, so that curing the combination of particle surface and strip off easily.

Working principle of distributor:
     Motor through the distributor driven feed system will supply the material after re-melting heat, and then will be divided into materials dropwise, strip or sheet, spread by the governor of the stainless steel belt motor drag. Cooling water as a result of the back strip of the role of forced cooling, spread to the strip on the rapid cooling of the material was solidified shape forming materials are approximate hemispherical shape, by adjusting the distributor of the aperture can be made from a few millimeters from zero to several mm, mm, etc. until the dozens of different particle size similar to the hemisphere-shaped particles, or strips of material cooling and solidification growth, such as the shape of sheet.

Twin Roller Compactor plays an important role in the pharmaceutical industry. Optimization of Twin Roller Compactor has improved product quality, process efficiencies, personnel ergonomics, reduced airborne contamination and machine noise. Twin Roller Compactor feeding and design system improvements have also significantly advanced equipment performance.

In several experiments, Miller studied and described the effects of horizontal twin auger feed-screws, under partial vacuum, which were enclosed in a novel stainless steel sealed system prior to the rolls. Essentially, feed stock was vacuum deaerated just prior to roller compaction. The experimental design showed the compactor's deaeration and feed system designs significantly increased compaction output and minimized powder leakage when compacting very low density blends, less than 0.3 g/cm3 . Miller concluded from his studies that there are four key processing conditions to consider when optimizing roller compaction throughput:

1. Adequate powder supply must enter the roll-pair-gripping zone.
2. Powder must be fully conveyed into the narrowest part of the roll gap.
3. Roll pressure must be distributed as uniformly as possible over the entire roller-gripped mass.
4. Vacuum deaeration must be adequately and effectively distributed before the nip roll region.

Abstract:

The invention relates to a rotary pelleting machine comprising a driveable die block provided with a defined number of dies distributed over the periphery thereof, bottom rams and top rams which are associated with the dies and rotate about a common rotational axis, synchronously with the die block, along a bottom ram guide and a top ram guide, at least one filler device for filling the dies with a material to be compressed, and a compression device for acting on the rams with a compression force. According to the invention, the filler device (18) comprises at least two independently chargeable filling chambers (24) which can be successively brought into a defined filling position. The invention also relates to a method for producing a multi-layer pellet by means of a rotary pelleting machine.

Claims:

1. Rotary pelleting machine with a driven die block having a defined number of dies distributed over a periphery of the die block, bottom plungers and top plungers associated with the dies and rotating along a bottom plunger guide and a top plunger guide about a common rotation axis synchronous with the die block, with at least one filling apparatus for filling the dies with a material to be pressed, and a pressing device for applying a pressing force to the plungers, characterized in that the filling apparatus (18) has at least two filling chambers (24) which can be filled independent of one another, wherein the filling chambers (24) can be moved sequentially to a defined filling position.

2. Rotary pelleting machine according to claim 1, characterized in that the filling chambers (24) can be moved in the filling position sequentially and continuously during the rotation of the die block (12).

3. Rotary pelleting machine according to claim 2, characterized in that the filling apparatus (18) has at least two sequentially accessible filling chambers.

4. Rotary pelleting machine according to claim 3, characterized in that the filling apparatus (18) is a rotatable chamber feed shoe (20) having at least two filling chambers (24).

5. Rotary pelleting machine according to claim 4, characterized in that the chamber feed shoe (20) has six filling chambers (24) which are arranged in star-shape about a rotation axis (22) of the chamber feed shoe (20).

6. Rotary pelleting machine according to claim 1, characterized in that the chamber feed shoe (20) is operatively connected with a drive which enables in combination a rotary and a linear motion.

7. Rotary pelleting machine according to claim 1, characterized in that a rotary drive of the chamber feed shoe (20) is a drive (48), a pneumatic drive and the like.

8. Rotary pelleting machine according to claim 1, characterized in that the pressing device (26) of the rotary pelleting machine (10) comprises a main pressure roller pair (30).

9. Rotary pelleting machine according to claim 8, characterized in that the pressure rollers (30) are arranged for height adjustment with respect to the die block (12).

10. Rotary pelleting machine according to claim 9, characterized in that the device for height adjustment comprises at least one drive (48), a pneumatic drive and the like.

11. Rotary pelleting machine according to claim 1, characterized in that the guide tracks (40, 42) for the bottom plungers and/or top plungers are height-adjustable relative to the die block.

12. Rotary pelleting machine according to claim 11, characterized in that segments of the guide tracks (40, 42) are height-adjustable independent of one another.

13. Rotary pelleting machine according to claim 11, characterized in that the height adjustment comprises at least one drive (48), a pneumatic drive and the like.

14. Rotary pelleting machine according to claim 1, characterized in that only a single plunger pair associated with the die (16) to be filled is provided.

15. Rotary pelleting machine according to claim 14, characterized in that additional dies (16) of the die block (12) are implemented as dummy dies.

16. Method for producing a multilayer tablet with a rotary pelleting machine , wherein the various layers and/or inserts are introduced in a die of a rotor and pressed, characterized in that the individual layers and/or inserts are introduced in the die sequentially in a continuous process at a common predefined filling position.

Description:

[0001]The invention relates to a rotary pelleting machine and method for producing a multilayer tablet.

[0002]Rotary pelleting machines are commonly known. A rotor of the rotary pelleting machine is set into rotation using a drive machine. The rotor includes dies arranged along a periphery which are associated with top plungers and bottom plungers. The dies are filled with a material to be pressed via at least one feed shoe and, depending on the angular position of the rotor, the bottom plungers and top plungers, which are guided via guide tracks, move axially with respect to the dies. The bottom and top plungers pass at least one pressing station, typically a pre-pressing station and a main pressing station. The top and bottom plungers are controllably guided past stationary pressure rollers, so that a pressing force can be applied to the material to be pressed introduced into the dies.

[0003]Rotary pelleting machines are known which can be used to produce so-called multilayer tablets, i.e., tablets containing several layers and/or inserts. Several feed devices and pressing stations are sequentially arranged along the periphery of the rotor. The rotor must therefore have a correspondingly large circumference which depends on the number of layers and/or inserts. Consequently, a rotary pelleting machine requires a large installation space.

[0004]Conventional rotary pelleting machines operate very inefficiently, in particular, when producing small quantities of multilayer tablets, for example in laboratory-type production setting or for tests pressings.

[0005]It is therefore an object of the invention to provide a rotary pelleting machine of the aforedescribed type and a method for producing a multilayer tablet, which can be used to produce multilayer tablets in a simple manner, and more particularly also in small quantities.

[0006]The object is attained with the invention with a rotary pelleting machine having the features recited in claim 1 and a method for producing a multilayer tablet with the features recited in claim 16.

[0007]Advantageously, a rotary pelleting machine for the production of multilayer tablets with a small footprint can be constructed by employing a filling apparatus with at least two filling chambers that can be filled independent of one another, wherein the filling chambers can be moved sequentially to a defined filling position, wherein preferably the filling chambers can be continuously and sequentially brought into the filling position during the rotation of the die block. A corresponding layer or an insert of the multilayer tablet can produced or brought into position during each complete revolution of the die block (rotor) by moving the filling chambers which can be filled independently of one another sequentially into the filling position. As a result, particularly the circumference of the die block can be reduced to the minimum dimension necessary to fill and press (optionally pre-press and main-press) the dies. This approach obviates the need for producing and positioning the layers and the inserts, respectively, sequentially during a revolution of the die block. The number of dies and plunger pairs is also reduced significantly. More particularly, such small-size rotary pelleting machine can be used as laboratory machines or test machines.

[0008]According to an advantageous embodiment of the invention, the filling apparatus includes several, i.e., at least two, sequential chambers which can be accessed individually (sequentially). The chambers are filled under production conditions. Filling and sequential addressing are hereby integrated into the temporal sequences of the overall process. Accordingly, one chamber is always brought into the filling position, thereby providing a continuous process flow.

A compactor is a machine or mechanism used to reduce the size of waste material or soil through compaction. A compactor is often used by homes and businesses to reduce the volume of trash.

Normally powered by hydraulics,compactors take many shapes and sizes. In landfill sites for example, a large bulldozer with spiked wheels called a landfill compactor is used to drive over waste deposited by waste collection vehicles (WCVs).

WCVs themselves incorporate a compacting mechanism which is used to increase the payload of the vehicle and reduce the number of times it has to empty. This usually takes the form of hydraulically-powered sliding plates which sweep out the collection hopper and compress the material into what has already been loaded.

Different compactorsare used in scrap metal processing, the most familiar being the car crusher. Such devices can either be of the "pancake" type, where a scrap automobile is flattened by a huge descending hydraulically-powered plate. The other type is the baling press, where the automobile is compressed from several directions until it resembles a large cube.

The standard of the industry. These highly efficient Steel belt  is engineered to elevate and transfer a broad range of tough materials.

Features and Benefits:

•  Steel belt is available in plain, perforated, or dimpled style in 2½, 4, 6, and 9 in. pitch

•  Available in closed or open frame designs in a variety of elevating configurations

•  Widths up to 8 ft and lengths to 600 ft are available

•  Features precision die-formed hinge sections

•  Heavy-duty side chain features replaceable bushings and flanged rollers

•  All other components are engineered standard off the shelf for ease of maintenance

•  Closed frame models come completely sealed and oil tight