Paper Pellet Plant For recyclable paper waste

Paper pellets are granular substances made from raw materials such as waste paper and wood. They are an important intermediate product in the pulp production process.

Paper pellets have a wide range of uses and can be used to produce various paper products, such as cat litter, rabbit litter, pet litter, paper, cardboard, and cartons, as well as to produce wooden boards, biomass fuels, etc.

In addition to the above three fields, paper pellets can also be used in other fields. For example, paper pellets can be used to produce animal feed, such as chicken feed, cattle feed, etc.

These feeds have the characteristics of high protein, high energy and easy digestion, which can improve the production performance of animals.

In addition, paper mill pellets can also be used to produce biomass chemicals such as biomass ethanol, biomass acetone, etc. These chemicals have broad application prospects and can replace traditional petrochemicals and reduce environmental pollution. (Find RICHI on YouTube)

Paper pellet processing can also be considered as paper recycling.

Using recycled fibers to make paper can greatly save resources and reduce pollutant emissions. Waste paper is called the forest resource in the city, because whether it is waste newspapers, book paper, office paper, kraft paper, paper boxes, corrugated paper, etc., they are all valuable fiber raw materials.

Using waste paper to make paper has the advantages of low energy consumption, low environmental protection treatment costs, low unit raw material costs, and reduced environmental pollution.

Therefore, people call paper and cardboard produced using recycled fibers green products.

Confetti cat litter is mainly made of paper-based materials, and some are added with activated carbon. It has the characteristics of hygroscopicity, good deodorization, and good caking property.

Paper cat litter is softer than sawdust cat litter, with smaller pellets. It turns gray after peeing, making it easy to identify and easy to clean up in time.

The paper cat litter disposal method can be poured directly into the toilet and flushed away, making it easy to operate. Paper cat litter is cheaper and can be used as a substitute for plant-based cat litter.

From a manufacturing perspective, the biggest difference between wood and cardboard pellets is that cardboard initially transitions from wood to cardboard fibers through the process of pulping.

This process strips most of the lignin out of the wood, which is the main substance that binds the wood pellets together.

Cardboard pellets require cellulose fibers for binding.

Paperboard pellets are produced at temperatures slightly higher than those required for wood pellet production.

There is a greater reliance on cellulose fibers to maintain the shape of cardboard pellets. Producing wood pellets from waste wood uses a higher density feedstock than cardboard pellets. Shredded cardboard, on the other hand, is “super fluffy,” as opposed to using sawdust to make wood pellets.

(1) Working principle

• Once the original cardboard has been stripped of all staples, plastic and other unwanted materials, the waste paper and waste cardboard are shredded in a shredder, producing cardboard fragments two to three millimeters in size.
• The shredded cardboard is fed into a pellet forming machine where they are subjected to considerable heat and pressure. The temperature inside the granulation chamber can reach 150℃, and the pressure under the rollers can reach thousands of pounds per square inch.
• There is no heater in the pellet molding machine, but the pressure applied to the raw material creates enough internal friction to produce a rapid temperature rise.
• Through the extrusion molding of ring die and pressure roller, pellets are finally produced.

(2) About the calorific value of paper pellets

In fact, the calorific value of cardboard pellets is 15% lower than that of wood pellets. Combustion data indicates that 5% cardboard pellets mixed with wood pellets will produce the most desirable heat and ash results when using pellets for the end user.

(3) About profit

Using information on the calorific value of paper pellets, you can calculate a comparable price to wood pellets and see if your manufacturing costs exceed or under that price.

However, in the end you will find that if you can introduce a subsidy system or a municipal waste diversion system, you can at least break even or have a chance to make a profit.

Regarding the processing of fuel paper pellets, there are currently few applications. Obviously, the paper pellet plant is a very economical choice for cat litter processing, plate pellet processing, and paper mill pellet processing.

Pulp is one of the key raw materials for paper manufacturing, and pellet equipment is an essential piece of equipment in the pulp preparation process. The paper mill pellet process includes material pretreatment, particle preparation, particle separation, pellet processing and other links. These links will be introduced in detail below.

(1) Preprocessing of materials

The pretreatment of materials is the first step in the pellet process, and its main purpose is to make the materials more suitable for pellet preparation. The main methods of pretreatment include screening, washing, presoaking, drying, etc.

• The function of screening is to remove impurities and dust from materials to ensure the quality of pellets;
• Washing can remove sand, silt and other impurities in the material to avoid affecting the preparation process;
• lPre-soaking is to soak the material in water to make it softer and easier to process;
• Drying is to reduce the moisture content of the material to avoid agglomeration during the pellet preparation process.

(2) Preparation of particles

Pellets preparation is the core link of the pellet equipment process. Its purpose is to process materials into granules for subsequent processing.

The preparation methods of particles mainly include wet preparation and dry preparation.

• Wet preparation is to add materials to a specific solution and form pellets through chemical reactions;
• Dry preparation is to add materials to specific equipment and form pellets through mechanical action.

Among them, wet preparation is suitable for some materials with relatively active chemical properties, while dry preparation is suitable for some materials with relatively stable mechanical properties.

(3) Separation of particles

The separation of pellets is an important link in the pellet process. Its main purpose is to separate prepared pellets from unprepared materials to ensure the purity and quality of the pellets.

Pellet separation methods mainly include screening, centrifugation, filtration, etc.

• Screening is a relatively common separation method. Its principle is to use different apertures of the screen to separate pellets and materials;
• Centrifugation uses centrifugal force to separate pellets and materials;
• Filtration uses filters to separate pellets and materials.

(4) Pellet processing

Pellet processing is the last step in the paper mill use paper pellet plant equipment process. Its main purpose is to process the prepared pellets to make them more suitable for subsequent use.

The processing methods of pellets mainly include drying, baking, compression, etc.

• Drying is to remove moisture from the particles to make them drier;
• Baking involves treating the particles at high temperatures to make them harder and more durable;
• Compression is to compress the pellets to make them more compact and firm.

The paper mill pellet production process is a complex process, which includes material pretreatment, particle preparation, pellet separation, pellet processing and other links.

Only by strictly controlling every link can we ensure the preparation of high-quality pellets and provide reliable guarantee for paper manufacturing.

A complete cat litter paper pellet plant consists of cleaning machines, hammer mills, mixers, ring die paper granulators, coolers, microwave dryers, screening machines, packaging machines, and other auxiliary equipment.

Detailed process flow of cat litter paper pellet plant:

1. Collecting.
   Waste papers are abundant in schools, printing companies, markets, and office buildings. Paper mill residues are another important source. These materials have different sizes and features, you need to sort them into groups for future processing.
2. Grinding.
   You need a hammer mill to crush large sizes of waste papers into powder with a size of less than 6mm.
3. Drying.
   The moisture content of paper materials should be 12%-15%. Neither higher nor lower are not acceptable. If the papers are too dry, it would cause a static charge and make the pellets light and fluffy.
   In this regard, you can add a certain amount of water to the paper pellet making machine when processing. If the moisture content is over-high, you need to lower it by putting the powdery material in a rotary dryer or a pipeline dryer.
4. Making paper cat litter pellets.
   This is the core process of making paper pellets. Feed materials of proper size and moisture content into the paper pellet machine.
   They will get compressed and molded in the compression chamber and come out in the shape of cylinders. Usually, there are ring die pellet machines for large-scale production and flat die pellet machines for small-scale production.
5. Pellet cooling.
   The newly produced paper pellets have a high temperature of 90 ℃. So you need a pellet cooler to lower the pellets to room temperature. Cooling can improve the stability and hardness of paper pellets. Also, you can put the paper pellets in the open air for natural withering.
6. Pellet screening.
   Use a pellet sieve to remove the residual powders in the paper pellets. These powders can be re-pelletized together with the left materials.
7. Pellet packing.
   A Pellet packing machine is essential for commercial paper pellet plant. It can weigh and package the pellet products in bags. The package can protect the paper pellets from erosion by moisture and wind. Pellets can be stored in closed silos.

(1) Raw material classification

According to the different raw materials of paper mill pellets, they can be divided into two categories: wood type paper pellets and non-wood type paper pellets.

Wood pellets refer to pellets produced from wood, bamboo and other woody waste materials, while non-wood pellets are pellets produced from non-wood materials such as waste paper, straw, and straw.

(2) Granularity classification

According to the different sizes of paper mill pellets, they can be divided into two categories: large pellets and small pellets. Large pellets are mainly used for biomass fuel paper pellet plant and cat litter paper pellet plant.

Paper mill pellets of different pellet sizes can be obtained through cutting, crushing and other processes; while small pellets are mainly used for paper making, and the production process usually includes processes such as refining and fiber separation.

As one of the important raw materials in the fields of pulp preparation and biomass fuel, paper mill pellets play an important role in industrial production. Its different classifications and uses also provide a more diverse and flexible choice for related industries.

In order to serve you better, please try to provide the below information:

1. What is the material to make pellets? Better if you can share us some pictures
2. Hardness of your material?
3. Moisture content?
4. Maximum diameter of the material to be processed?
5. The capacity per hour you want to get for the pellet production.

Then we will recommend suitable paper pellet plant design and machine model based on your actual needs.