Supporting equipment

Drum-type wood chip screening machine

In a charcoal production line, the drum-type sawdust screener acts as a “gatekeeper” for raw material pretreatment. It separates impurities and large pieces of material from the sawdust using an inclined rotating drum, providing uniformly sized, qualified raw materials for subsequent drying and briquetting processes. It is a key piece of equipment ensuring stable production line operation and the quality of the final product.

Core function: To ensure uniform particle size of raw materials and guarantee the performance of subsequent processes.

Screening to remove impurities: Effectively removes large impurities such as stones, wood blocks, and metal mixed in with raw materials such as sawdust and rice husks, preventing them from damaging subsequent dryers and briquetting machines.

Grading and preparation of raw materials: The raw materials are graded according to particle size to ensure that the particle size of the raw materials entering the briquetting process meets the standard (e.g., 3-8mm). This is the basis for ensuring that the briquettes are dense and do not crack.

Automatic wood chip distributor

In a charcoal production line, the sawdust feeder (also known as a screw conveyor or uniform feeder) is mainly responsible for quantitatively, uniformly, and continuously supplying raw materials to the next stage (such as a dryer or briquetting machine). It is a key hub to ensure stable production line flow and avoid “starvation” or “blockage”.

Core function: To achieve quantitative and uniform feeding and stabilize the production cycle.

Buffering and Regulation: The silo receives raw materials after upstream screening and, through its buffering function, eliminates the impact of upstream equipment shutdowns or fluctuations on the downstream.

Quantitative conveying: The conveying volume is precisely controlled by a variable frequency speed control or a drive device with a specific speed, ensuring a stable flow of raw materials entering the dryer or briquetting machine, thereby ensuring uniform drying effect.

screw conveyor

In charcoal production lines, screw conveyors play the crucial role of the “material transport artery.” Through rotating helical blades, they efficiently and environmentally transport bulk materials such as sawdust and charcoal powder horizontally, inclined, or vertically between various processes including crushing, drying, briquetting, and carbonization within enclosed pipes or U-shaped troughs. They are key equipment ensuring the continuous and automated operation of the production line.

Core function: To achieve continuous and controllable material conveying.

Acceptance and transfer: Connecting various process links, such as quantitatively feeding screened wood chips into the dryer, or evenly distributing dried materials to multiple briquetting machines to ensure stable production rhythm.

Sealed feeding and cooled char output: In continuous carbonization equipment, the screw conveyor is not only responsible for sealing the raw materials into the carbonization furnace to prevent air from entering, but also for outputting and cooling the high-temperature carbonized biochar.

belt conveyor

In a charcoal production line, belt conveyors play the role of “efficient horizontal transfer stations.” Through a circular conveyor belt, they smoothly and reliably transfer large quantities of materials such as sawdust and charcoal powder between various processes within a wide inclination angle (≤25°). They are fundamental logistics equipment ensuring the continuous and automated operation of the production line.

Core function: To achieve efficient and continuous material transfer.

Connecting various processes: As the “logistics artery” of the production line, belt conveyors are widely used in various stages. For example, they are responsible for smoothly feeding raw materials from automatic hoppers into the drying system, and also for conveying charcoal powder to the next process.

Adaptable to various material forms: whether it’s loose sawdust, granular raw materials, or raw materials such as charcoal powder and coal powder. The belt conveyor can adapt to conveying needs by adjusting the belt material and inclination angle.

Steel mesh conveyor

In charcoal production lines, steel mesh conveyors play the role of “high-temperature transporters.” With their high-temperature resistant metal mesh belts, they are specifically designed to smoothly and efficiently transport semi-finished charcoal briquettes, which are extruded from the briquetting machine and reach temperatures as high as 200-300°C, to the next stage or storage area. They are key equipment connecting molding and carbonization, enabling automated production.

Core function: To achieve non-destructive and automated transfer of high-temperature carbon rods.

Accepting output from multiple briquetting machines: This conveyor is typically used to collect semi-finished mandrels produced simultaneously by multiple briquetting machines, concentrating the dispersed outputs for unified transportation, greatly improving the efficiency of the downstream of the production line.

wheel type mixer

In the production process of charcoal powder molding (carbonization followed by molding), the roller mixer plays the role of a “super mixing master.” Through the crushing of the rollers and the tumbling of the mixing blades, it repeatedly squeezes, degasses, kneads, and disperses the charcoal powder, binder, and water, ultimately mixing them into a molding raw material with uniform density and excellent plasticity. This is the core equipment ensuring a smooth, crack-free, and high-strength charcoal product.

Core function: Deep blending, laying the foundation for high-quality molding.

Intensive Mixing and Compaction: The core advantage of the roller mill mixer lies in its unique “compression + mixing” combined function. It doesn’t simply mix materials evenly; instead, it uses the gravity of the rollers to repeatedly crush the charcoal particles, fully expelling air from between the particles and increasing the material’s density. This provides high-density raw materials for subsequent molding machines, forming the basis for ensuring the compactness of the finished charcoal briquettes.

Ensuring material uniformity: Its working principle involves repeatedly rolling, dispersing, rolling again, and dispersing again on the grinding disc. This unique kneading action allows the binder to evenly coat the surface of each charcoal particle, thoroughly fusing the various materials into a unified whole, ensuring the homogeneity of the raw materials at the microscopic level. In contrast, ordinary mixers can only achieve surface uniformity.

Improving product quality: Materials processed by a roller mill mixer have good plasticity, high density, and uniform composition. Charcoal briquettes pressed from this raw material have a smoother surface, are free of cracks (no splattering), and have higher cold strength (impact and compressive strength).

Charcoal crusher

zIn a charcoal powder molding production line, the core function of the charcoal crusher is to crush large pieces of waste charcoal (such as broken charcoal and unqualified charcoal rods) into fine and uniform powder, providing qualified raw materials for subsequent mixing with binders and high-pressure molding. It is the key starting point for the production line to realize “turning waste into treasure”.

Core function: To provide carbon powder raw materials with qualified particle size.

Waste processing and resource regeneration: A major advantage of charcoal powder forming technology is its ability to process the “waste” generated in traditional machine-made charcoal production, such as broken charcoal and substandard charcoal rods produced during carbonization. The pulverizer re-crushes these lumpy wastes into powder, enabling their reuse and turning waste into treasure.

Ensuring particle size to meet molding requirements: The crusher breaks down various carbonized materials (including charcoal scraps, carbonized straw, fruit shells, etc.) into fine, uniform powder. This is crucial for subsequent processes, because only uniformly sized charcoal powder can be fully mixed with the binder and tightly molded under high pressure, ensuring the strength and surface smoothness of the final product.

Charcoal stick cutting machine

In the charcoal powder forming production line, the hookah charcoal briquette cutting machine plays the role of a “precision cutter.” It automatically cuts the long charcoal briquettes continuously extruded from the extrusion molding machine into small pieces of hookah charcoal with precise dimensions and uniform shapes (such as cubes and flakes) through high-speed rotating blades. It is the core equipment connecting the forming and drying processes and realizing automated mass production.

Core function: Precise length measurement and efficient molding

Automated continuous cutting is achieved: the cutting machine is usually linked with a conveyor belt. The charcoal rods are automatically sensed and cut during the conveying process, eliminating the need for manual operation, which greatly improves production efficiency and saves labor costs.

Ensuring consistent product specifications: A precise control system ensures that each piece of hookah charcoal is of uniform length and has a clean cut, providing standardized products for subsequent drying and packaging.