peanut shell pellet machine

In the global oilseed market, peanut production ranks fifth after soybeans, rapeseed, sunflower seeds and cottonseed. Peanuts originated in South America, and their planting areas are mainly concentrated in tropical and subtropical areas between 40°N and 40°S.

• Asia is the region with the largest planting scale, accounting for nearly 70% of the world’s total peanut planting area. In addition to China and India, peanuts are also grown in Indonesia, Myanmar, Bangladesh, Vietnam and other countries.
• The scale of peanut planting in Africa is second only to Asia. Nigeria, Senegal, Sudan, Tanzania, Ghana, etc. are the main peanut producing countries.
• The scale of peanut planting in the Americas ranks third among all continents. Argentina and Brazil in South America and the United States in North America are important peanut producers.

Obviously, the larger the scale of peanut planting, the richer the peanut shell resources, and the more advantages it will have to carry out peanut shell pellet machine plant and peanut shell pellet processing business.

In addition to these countries with resource advantages, peanut shell resources are abundant. Therefore, the selling price of these raw materials is also very low.

If there are channels to purchase cheap peanut shells, no matter which region you are in, if you can make good use of these resources, this will also be a profitable business for you.

Peanut shell pellets have the following advantages:

• Using peanut shells to make molded fuel can not only recycle resources, but also has high density, high calorific value, and resistance to incineration. It can also reduce environmental pollution caused by oxides such as S and N.
• High-density peanut shell pellets can ignite quickly, have good combustion performance, high combustion efficiency, and produce less ash.
• Peanut shells are a common raw material and easy to obtain. This will reduce the production cost of peanut shell pellets and provide larger profit margins.
• Peanut pellet fuel is a green biomass energy with low emissions and environmental friendliness.
• Due to their high combustion rate and easy storage, peanut shell pellets can be widely used in civil heating and daily energy supply, and can also be used in industrial boilers to generate electricity.

RICHI peanut shell pellet machine is capable to process many different agricultural and forestry waste, including rice husk, corn stalk, wheat straw, rice straw, EFB, bamboo, etc., which gives you the flexibility to choose the most economic raw material based on availability and price.

Among the various quality characteristics of peanut shell pellet fuel, in addition to satisfying its combustion characteristics, physical properties are the most important quality characteristics of peanut shell pellet fuel.

Because peanut shell pellet fuel will inevitably fall and collide during production, packaging, storage and transportation. If the pellet fuel cannot maintain its original basic shape, causing the peanut shell pellet to become loose and broken, it will not be conducive to the combustion of the fuel in the furnace and reduce its use value.

Therefore, peanut shell pellet fuel must meet certain physical performance conditions to meet the requirements throughout production, transportation, and use.

Good physical properties can reduce the packaging, transportation and storage costs of peanut shell pellet and ensure that the peanut shell pellet maintains the necessary physical shape when entering the boiler. Relaxed density and mechanical strength are two important indicators for measuring the physical quality characteristics of the molded block.

(1) Relaxed density

After the peanut shell pellet fuel is compressed and released from the peanut shell pellet machine mold, its compression density will gradually decrease due to factors such as stress relaxation and elastic deformation. After a certain period of time, the density of the fuel block will basically become stable. The density at this time is the molding fuel the relaxed density. Relaxation density is an important indicator of the physical properties and combustion performance of molded fuel.

Different particle sizes, moisture contents, compositions and peanut shell pellet machine compression processes will ultimately achieve different relaxed densities. It is generally believed that peanut shell pellet fuels with a relaxed density greater than or close to 1g/cm³ are ideal for combustion, storage and transportation.

(2) Mechanical strength

Mechanical strength is the basic requirement that briquette fuel must have and is a basic criterion for measuring whether it can replace coal. During the production and transportation process of biomass briquette fuel, collisions and drops will cause the pellet fuel to break, affecting the durability of the biomass briquette fuel.

Therefore, peanut shell pellet must have a certain strength to resist external forces, so that it can maintain a certain shape and volume without being damaged during transportation and use. The mechanical strength of solid molded fuels can be evaluated by compressive strength and drop strength.

(3) Compressive strength

The maximum pressure that the peanut shell pellet can withstand when it breaks due to external force is called compressive strength, which is generally used to measure the bonding strength between the internal particles of the peanut shell pellet.

Experimental measurements are made using pressure transducers and the compressive strength is expressed as failure load.

(4) Drop strength

During the transportation process of biomass peanut shell pellet fuel, mass loss caused by falling and collision will inevitably occur, so the pellet fuel needs to have a certain impact resistance. Therefore, the drop strength is used to measure the shatter resistance of molded fuel under multiple drops, and the weight loss rate is used to express the drop strength.

With the improvement of the overall machine efficiency and the improvement of the ring-die pellet machine, the RICHI peanut shell pellet machine has brought significant comprehensive benefits to the peanut shell molding fuel.

This fuel is a clean, renewable energy source and can completely replace traditional solid fuels such as coal from the perspective of molded fuel usage habits. This also meets the sustainable development requirements of various countries.

Biomass peanut shell pelleting technology complies with the energy development policies of various countries around the world and has broad development prospects. (Find RICHI on YouTube)

The price of feed type peanut shell pellet mill is 7,000-100,000 USD. The model of this type of equipment is SZLH, which also adopts the ring die principle. However, unlike the fuel peanut shell pellet mill, the feed pellet mill needs to be equipped with a conditioner.

The parameters of peanut shell feed pellet machine are as follows:

Model	Capacity(TPH)	Main Motor Power(kw)	Feeder Motor Power(kw)	Conditioner Power(kw)	Dia.of Ring Die(mm)	Final Pellet(mm)
SZLH250	1-2	22	0.75	1.5	250	2~12
SZLH320	3-4	37	1.5	2.2	320	2~12
SZLH350	5-7	55	1.5	3	350	2~12
SZLH420	8-12	110	1.5	7.5	420	2~12
SZLH508	10-18	160	2.2	11	508	2~12
SZLH558	15-25	180/200	2.2	11	558	2~12
SZLH558D	14-22	160/180/200	1.5	7.5	558	2~18
SZLH678	20-30	220/250	2.2	11	678	2~12
SZLH678D	15-25	200/220/250	2.2	11	673	2~18
SZLH768	25-40	280/315	2.2	11	768	2~12
SLZH858	25-42	280/315	2.2	15	858	2~18

At present, the main factors that affect the biomass molding process and the performance of the molded products are: the type of raw materials, particle size and distribution, moisture content of the raw materials, peanut shell pellet machine molding pressure and binder, etc.

(1) Types of raw materials

Different biomass raw materials have certain differences in their own organizational structure, composition and physical properties, so there are also differences in their compression molding properties.

Usually the main components of various biomass materials are cellulose, hemicellulose, lignin, etc. The higher cellulose content indicates that the mechanical organization of plant cells is developed, and a larger compression ratio is required during pelleting.

Generally, if the fiber content is low, the molding pressure required is small, and conversely, the molding pressure required is high.

The comprehensive cellulose (cellulose and hemicellulose) content of peanut shells is 66.36%. Therefore, compressing the molding fuel that uses peanut shells as 100% raw material requires a large molding pressure.

• Generally, the use of raw materials with low elasticity and good plasticity is beneficial to the molding effect;
• On the contrary, the fuel molding effect is poor.

The sludge after urban sewage treatment itself has a certain degree of cohesiveness. After being mixed with peanut shells and coal, it can be well formed using a small pressure.

Therefore, adding sludge as a binder to the raw material can not only improve the molding quality of the molded fuel, but also reduce a certain amount of power consumption.

(2) Molding pressure

Molding pressure is the most basic factor in the process of preparing peanut shell pellet, providing external force to compress loose raw materials into dense block fuel.

In the normal temperature compression molding process, generally the greater the molding pressure, the greater the molding density can be obtained, but the energy consumption will be greater and the cost will increase.

As the peanut shell pellet machine pressure increases, the molding density becomes larger and larger, but when the pressure reaches a certain value, the molding density basically becomes flat and does not change.

(3) Peanut hull particle size

The particle size of raw materials is an important factor in the quality of peanut shell pellets.

• Generally speaking, the smaller the particle size of the raw material, the easier it is for the particles to bond, which is more conducive to the molding effect;
• On the contrary, the larger the particle size of the raw material, there will be a certain gap between the raw materials during the peanut shell pellet machine compression process, the filling performance is poor, and the bonding effect between particles is not good, which is not conducive to molding.

However, the smaller the particle size of raw material crushing, the more power will be consumed and the cost will increase. Therefore, there should be a reasonable range for the selection of particle size.

(4) Moisture Content

Appropriate moisture content can play a certain role as a lubricant, reduce the friction resistance during the compression process, enhance fluidity, facilitate the mutual bonding between particles, and improve the mechanical strength of the peanut shell pellets.

• If the moisture content is too low, the friction increases during the compression process, and the particles cannot be tightly combined, so it is difficult to shape; and the molded fuel absorbs moisture in the surrounding air after it is released from the mold, making the fuel block easy to deform.
• If the moisture content is too high, the water will evaporate automatically after the fuel is molded, which can easily cause the molded fuel to dry out and break.

(5) Binder

Binders generally use materials with good plasticity, low elasticity and their own bonding effect. During the process of peanut shell pellet machine compression molding, adding binders can enter the gaps between raw material particles and strengthen the bonding effect between particles.

In the context of today’s energy crisis, peanut shell energy has received widespread attention as a clean and renewable energy source. The government has also implemented many policies to support the development of related industries. The application of peanut shell energy has gradually become a trend.

The peanut shell fuel pellets processed by RICHI peanut shell pellet machine not only have a uniform shape and stable properties, but also have good thermal efficiency, which is one of the best ways to apply biomass energy.

Welcome to contact us and tell us your needs, our engineers will customize a plan for you to maximize the benefits of peanut shell pellets processing.

At present, most peanut shells produced in various countries are still used as feed and fertilizer, with low added value and low utilization rate. In some countries, peanut shells are rarely further processed, resulting in a waste of resources.

The main reasons why the in-depth utilization of peanut shells is restricted are:

• The products currently developed have not yet been used for large-scale industrial production and are only laboratory research results;
• Peanut shells contain rich functional substances, but many current extraction methods have problems such as low yields and cumbersome extraction;
• There are large differences in the substance content of peanut shells among peanut varieties, and research is lagging behind.

As green and low-carbon life becomes the mainstream of society, waste reuse has attracted more and more attention. Starting peanut shell pellet machine plant, and strengthening the resource utilization of peanut shells of great significance for improving the efficiency of peanut planting, increasing farmers’ income, and reducing environmental pollution.

There are various types of peanuts found around the world, characterized by their branching habit and branch length. Extensive peanut production leaves behind a wealth of peanut waste, such as peanut shells and peanut fiber, which are now considered potential fuel sources.

(1) The value of peanut shells

After harvesting and shelling, the peanut shells, or husks, separate from the nut and make up approximately 20% of the weight of the dry peanut pod, meaning a significant amount of shell residual biomass is left after processing. Peanut shells are used as cattle feed, poultry liters and garden mulch, and they are now viewed as a potential fuel source.

(2) Ingredients of peanut shells

Although the composition of peanut shells varies from species to species, the main chemical components of peanut shells do not change significantly from species to species.

The main components of peanut shells are 37.0% cellulose, 28.8% lignin, 8.2% protein, and 2.5% carbohydrates. The composition of peanut shells makes peanuts a treasure in disguise, which can be used for both fuel and feed production.

In our peanut shell pellet machine projects, each customer’s raw material ratio is different. This ratio is usually decided by the customer himself.

What we need to do is: configure the peanut shell pellet processing technology according to the customer’s raw materials and special needs. and equipment, designing the layout and civil engineering of the entire peanut shell pellet production line.

In a recent case, a customer used the peanut shell pellet fuel ratio as:

• Peanut shell 79%
• Water 11%
• Glyceryl palmitate 5%
• Anthracite 5%

This customer believes that the pellet fuel pressed with this ratio is of the best quality, and through experimental verification, it is found that its calorific value is ≥17.5 MJ/kg, its crushing resistance is ≥98%, and its density is ≥650 kg/m3, which has reached the European production level industry standard for material pellet fuels (Agro).

On the basis of energy saving and consumption reduction, the method of using normal temperature and high pressure molding and using different additives to improve the quality of peanut shell pellet fuel is expected to be popularized and applied in biomass solid molding.

At present, there are still some technical bottlenecks in the development of peanut shell feed made by peanut shell pellet machine, such as:

• High lignin content: Peanut shells are limited in feed application due to their high fiber content, especially high lignin content, complex cell wall structure, and difficulty in digestion;
• Peanut shells are hard, have poor palatability, and have low animal digestion and utilization rates, so their use as livestock and poultry feed is greatly limited.
• Development and processing technology of peanut shell diet, including optimization of peanut shell diet formula, feed processing and modulation technology, etc. Except for a small amount of peanut shells used as roughage, a large amount of peanut shells are burned or thrown away without full and reasonable utilization, which is a waste of resources.

The lack of high-quality roughage resources and high feed costs restrict the development of animal husbandry. The utilization of food by-products has gradually become a research focus in many countries.

The current methods of using peanut shell pellet feed are:

• First crush the peanut shells, then chemically and biochemically treat them to decompose them, and then mix them with rice bran, bran, etc., and then use a feed-type peanut shell pellet machine to make mixed pellet feed;
• In addition, peanut shell powder can also be mixed and fermented with rice bran, bran, etc., and then made into pellet feed. These feeds can be used to feed pigs, cattle, chickens, fish, etc. Feeding this kind of feed not only improves the health of chickens egg production rate, the meat production rate of broilers and pigs, and the fattening time of pigs can also be shortened. The digestibility of animals is improved to a certain extent, and the economic benefits are significant.
• There are also customers who directly use peanut shells as feed raw materials. After crushing, they are directly mixed with other raw materials, and then granulated using a feed type peanut shell pellet machine. This method is a traditional complete compound feed pellet processing technology, usually used in animal feed mill plant, fully automatic cattle feed plant, poultry feed plant, pig feed mill, etc.

These methods have improved the palatability of peanut shells as animal feed to a certain extent, increased the nutritional value, and ultimately reduced the cost of the feed. However, the utilization rate of peanut shell feed for re-gastric animals after fermentation is still low, and It has not been widely used and promoted.

Compared with monogastric animals, animals with multiple stomachs have strong adaptability. Forage can be any type of forage grass and agricultural and sideline products, such as wheat straw, corn straw, peanut stalks, etc.

Using microbial conversion to convert peanut shells into animal feed, agricultural waste with low residual value is converted into feed ingredients that are more digestible and absorbable by livestock and have no toxic effects.

Compared with simple burning peanut shell and random discarding, etc., the processing method can better utilize the economic value of peanut shells, same as processing peanut shell fuel pellets.

As a by-product of consumer food processing, peanut shell fermented feed fermented by mixed strains can increase the growth rate of sheep and improve meat quality compared with unfermented feed, which has good breeding benefits.

With the continuous development of peanut shell pellet processing technology and the continuous strengthening of comprehensive development efforts, it will provide new impetus for the development of the feed industry in the future, find a new solution to alleviate the contradiction between human and animal sharing food, and provide new opportunities for the realization of ecological agriculture.