In modern energy utilization, biomass energy has attracted much attention because of its renewable and environmental protection characteristics. As an important form of biomass energy utilization, biomass briquette making is gradually widely used in heating, power generation and other fields because of its high efficiency and cleanliness. However, when many people come into contact with biomass briquette making, they often have a question: Is it necessary to add adhesive in the production process of biomass briquette making?

Basic principle of biomass briquette making

To answer this question, we first need to understand the basic principle of biomass briquette making. Biomass briquette making machine is a kind of equipment that extrudes agricultural and forestry wastes such as sawdust, rice husk, straw and corncob at high temperature and high pressure. In this process, Lignin in raw materials is softened at high temperature and acts as a natural adhesive. This feature enables biomass raw materials to form solid rod-shaped finished products without adding any external adhesive.

Is it necessary to add adhesive?

From the technical point of view, in most cases, biomass briquette making does not need to add additional adhesive. This is because the biomass raw material itself contains a certain amount of lignin, and this natural component can bond the raw material particles together well at high temperature and high pressure, thus forming a dense finished product.

However, in some special cases, the addition of adhesive may be considered. For example:

1. The nature of raw materials is insufficient

If the lignin content of raw materials used is low (such as some herbs or low-quality crop straws), the strength of finished products may be insufficient. In this case, in order to improve the quality of briquette making, some natural or environmentally friendly adhesives, such as starch or glue, can be added in a proper amount.

2. Improve product performance

Some special-purpose biomass briquettes may need higher strength or better combustion performance, and at this time, you can also choose to add binders to meet specific needs.

3. Reduce production costs

In some cases, adding cheap adhesives may help to reduce dependence on high-quality raw materials, thus reducing production costs.

Advantages and disadvantages of adding adhesive

Although adding adhesive can improve some properties, it also has some disadvantages.

Advantages:

-Improve the strength and density of finished briquettes.

-improve combustion performance, such as reducing smoke or increasing calorific value.

-Adapting to more kinds of raw materials and expanding the sources of raw materials for production.

Disadvantages:

-Increase production costs.

-May cause environmental pollution, especially when using chemical adhesives.

-Affect the environmental protection performance of finished products, so that they are no longer completely degradable.

Therefore, in actual production, whether to add adhesive needs to be comprehensively considered according to many factors such as raw material characteristics, product use and cost-effectiveness.

Working process of biomass briquette machine

In the working process of biomass briquette machine, raw materials are first crushed and dried to ensure that their particle size and water content are appropriate. Then, they are sent to the briquette making machine through the feeding device, and compressed and formed under the action of high temperature and high pressure. The whole process does not need complicated chemical treatment and additional chemical reagents, so it is a green and environmentally friendly process.

Environmental protection and future development

With the enhancement of environmental awareness and the growth of renewable energy demand, the development prospect of biomass briquetting technology is very broad. In the future, researchers may further optimize equipment and processes to improve production efficiency and reduce dependence on adhesives. At the same time, more kinds of raw materials and more environmentally friendly adhesives will be developed to meet the needs of different application fields.

To sum up, biomass briquette making usually does not need to add adhesive, because lignin in raw materials can already play a natural bonding role. However, in some special cases, in order to improve the product performance or adapt to different raw materials, you can also choose to add an appropriate amount of environmentally friendly adhesive. In actual production, reasonable choices should be made according to specific needs and economic benefits to ensure the balance between product quality and environmental protection performance. As a clean energy utilization method, biomass briquette making will play an increasingly important role in sustainable development.