Slurry Briquetting Machine

Slurry Briquetting Machine For Sale

Slurry refers to the semi solid materials formed by coal and water, which is a kind of product in the coal production process. Due to the varieties and formation natures of materials, their properties difference is very big, which is the same as their usages. Slurry briquetting machine or coal slime briquetting machine is mainly used for pressing slurry into balls and blocks, which can be directly put into the furnace for smelting, so as to increase the added value.

Slurry briquetting machine or coal slime press is mainly used for grouting with high pressure, automatic feeding and other characteristics. The pressed particles have high density and hardness. The series of briquetting machine equipment also includes coal briquetting machine, desulfurization gypsum briquetting machine, ore powder briquetting machine.

What is a Slurry Briquetting Machine?

A slurry briquetting machine is not just one machine; it is a complete system designed to dewater and compact wet materials. Many people think you can just pump wet slurry into a press, but this is not true. The real heart of the system is a high-intensity, dual-shaft mixer that comes before the press. This powerful mixer takes your high-moisture slurry, blends it with a precise amount of binder (like lime or cement) and sometimes dry recycled material, and kneads it into a consistent, damp, pressable feedstock. Only after this critical conditioning step does the material go to the roller press for compaction.

Why Should We Briquette the Slurry?

Managing wet slurry is a major operational headache. It is heavy, takes up a lot of space, and is expensive to transport for disposal. Briquetting this material fundamentally changes the equation. Instead of paying to get rid of a waste product, you create a new revenue stream or a valuable feedstock for your own processes.

You are essentially taking a low-value, high-volume waste and concentrating it into a high-value, low-volume product. This process reduces your landfill needs, cuts transportation costs by more than half, and turns an environmental liability into a component of a circular economy. It is a smart financial decision that also improves your company’s environmental credentials.

Benefits of Using Slurry Briquetting Machine

Investing in a slurry briquetting machine system offers clear, measurable benefits that impact your bottom line and your operations. It goes beyond just waste management; it is a process optimization tool.

• Economic Value: The most obvious benefit is financial. You stop paying disposal fees and start creating a product that can be sold or reused. For example, briquettes made from steel mill sludge can be charged back into the furnace, recovering valuable iron.
• Operational Efficiency: Solid briquettes are far easier to handle, store, and transport than wet slurry. They can be moved with standard loaders and conveyors, eliminating the need for expensive slurry pumps and ponds.
• Environmental Compliance: Regulations on waste disposal are becoming stricter. Briquetting helps you meet these regulations by significantly reducing the volume of waste sent to landfills. It also allows for the recovery of water from the slurry.
• Improved Product Quality: The briquettes have a uniform size, shape, and chemical composition, which makes them a reliable and predictable raw material for downstream processes.

Applications of Slurry Briquetting Machine

This technology is incredibly versatile and is used across many heavy industries to solve waste problems. The key is that we can customize the system to handle the specific challenges of your material, whether it is corrosive or highly abrasive.

• Steel Industry: This is a primary application. We design systems to handle Basic Oxygen Furnace (BOF) sludge, mill scale, and other iron-rich slurries. The resulting briquettes are a premium feedstock for blast furnaces or EAFs.
• Power Generation: Flue Gas Desulfurization (FGD) gypsum slurry from coal-fired power plants can be briquetted. These briquettes are then used to manufacture wallboard and cement, turning a waste product into a valuable building material. For this corrosive material, we often use stainless steel components.
• Mining Industry: Mineral tailings from iron ore, manganese, or copper processing are often stored in massive, risky tailings ponds. Briquetting these tailings can recover water and create a stable material for backfill or further metal recovery. These materials are highly abrasive, so we use high-chrome and tungsten carbide wear parts.

Working Principle of Slurry Briquetting Machine

The slurry briquette machine is the key equipment of the slurry pressing technology, and its structure directly affects the quality of the size. The main type of press machine is roller press, and it has a pair of parallel shaft, the same diameter and a certain gap of a cylindrical wheel, and there are many hemispherical pits of the same shape and size arranged in regular order.

Driven by an electric motor, the twin cylinders rotate at the same speed and in opposite directions. As the material falls into the joint of the twin-cylinder wheels, they begin to withstand pressure and generate volume compression between the two ball pits. As the cylinder wheel continues to rotate, the pit will gradually close and the pressure will increase. Pressure peaks when the distance between the two ball pits is minimized. The cylindrical wheel would then rotate away from each other and the pressure would drop rapidly. When the pressing pressure drops to zero, the precipitated slurry expands and falls off.

Applicable Materials of Slurry Briquetting Machine

The slurry briquette machinery is widely used in the coal industry, power plants, metallurgy industry, refractory material, chemical industry, energy, transportation, heating, and other industries. For processing coal slimes into briquettes that can be utilized for electricity-generating in power plant, gas making, boiler burning, calcining lime, metal smelting, etc. This coal lime briquetting machine manufactured by Zoneding Machinery is a great project that is energy-saving and eco-friendly. Using this roller press briquetting machine, your enterprise will obtain enormous economic benefit. 

Applications of Slurry Briquetting Machine

What are Key Components and Structure of Slurry Briquetting Machine?

A robust and reliable slurry briquetting machine system is built from several key components that must work together seamlessly. The quality of each part determines the long-term performance of the whole system.

1. Dosing System: Precisely measures and feeds the wet slurry and dry binder into the mixer. Accuracy here is key to a consistent product.
2. Dual-Shaft Mixer: As we mentioned, this is the heart of the system. It intensively blends the materials to achieve the target moisture content and consistency.
3. Roller Press: This is the machine that forms the briquettes. It consists of a heavy-duty frame, two counter-rotating rollers with pockets, and a hydraulic system to apply immense pressure. A critical design feature for wet environments is a fully seam-welded, sealed frame. This prevents moisture from getting inside and rusting the structure from within, ensuring a much longer machine life.
4. Conveying System: Transports the “green” (wet) briquettes from the press to the dryer.
5. Dryer: A mesh belt or chain plate dryer that uses hot air to remove the remaining moisture and cure the briquettes to their final strength.

How Does the Slurry Briquetting Machine Work?

The process is a logical flow from a wet waste to a dry, valuable product. Understanding this flow helps you see how each step adds value and contributes to the final briquette quality.

The principle is based on conditioning followed by compaction. First, the raw slurry and binders are precisely metered into the dual-shaft mixer. The mixer’s paddles shear and knead the material, ensuring every wet particle is coated with binder and the moisture is evenly distributed. This transforms the slurry into a damp, soil-like material. This conditioned feed is then force-fed into the gap between the two rollers of the press.

As the rollers turn, the material is squeezed into the pockets at extreme pressures, compacting it and forming the briquette. The critical goal here is to achieve good “green strength”—the ability of the wet briquette to hold its shape after leaving the press. The final hardness is achieved later, in the dryer.

What Types of Industrial Sludge Can Be Made into Briquettes?

A wide variety of industrial sludges and slurries can be successfully briquetted. The main requirement is that we can condition the material to a pressable consistency.

Here is a list of common materials:

• Steel Mill Sludge (BOF Sludge, Mill Scale)
• Iron Ore Fines and Tailings
• Manganese Ore Fines
• Flue Gas Desulfurization (FGD) Gypsum
• Coal Slurry and Anthracite Fines
• Aluminum Dross and Dust
• Lime and Dolomite Dust
• Refractory Materials

What is the Process of Making Slurry Briquettes?

Creating a high-quality briquette is a multi-stage industrial process. Each step is carefully controlled to ensure the final product meets your specifications.

1. Material Analysis: First, we analyze your slurry to understand its properties.
2. Recipe Development: Based on the analysis, we develop a recipe, selecting the right type and amount of binder.
3. Mixing and Conditioning: The slurry and binder are precisely mixed to create the ideal press feed.
4. Briquetting: The conditioned material is compacted in the roller press to form green briquettes.
5. Drying and Curing: The green briquettes are sent through a dryer where heat removes moisture and activates the binder, giving the briquettes their final strength.
6. Screening: The final product is screened to separate any fine particles, which are recycled back into the process.

What is the Size and Shape of Finished Slurry Briquettes?

The size and shape of the briquettes are fully customizable. They are determined by the pockets machined into the surface of the rollers. This allows you to create a product that is perfectly suited for your end-use.

Common shapes include pillow, oval, round, and square. The most popular is the pillow shape because it is robust and easy to handle. Typical sizes range from 25 mm to 60 mm. We work with you to design a briquette size and shape that provides the best performance for your application, whether it is for charging into a furnace or for easy packaging.

What is the Price of Slurry Briquetting Machine?

The price of a slurry briquetting system can range from $30,000 for a small, basic press to over $500,000 for a large, complete, automated line. It is important to understand that you are not just buying a press. The biggest mistake customers make is focusing only on the cost of the briquetting machine.

The reality is that the dryer is the real factory in this process. A dryer capable of handling the output of a medium-sized press can easily cost as much as, or even more than, the press itself. Furthermore, the single largest ongoing operational cost will be the energy (natural gas, coal, etc.) required to run the dryer. We believe in being transparent about these costs so you can plan your project for long-term success.

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