Operating a briquetting machine involves several key steps to ensure efficient and safe production of briquettes. Here’s a general step-by-step guide. Keep in mind that specific procedures might vary slightly depending on the type and model of your briquette machine, so always consult the manufacturer’s manual for detailed instructions.

How to Operate a Briquetting Machine

1. Preparation and Checks

Raw Material Preparation: Ensure your raw material (e.g., sawdust, agricultural waste) is of the correct size and moisture content as specified by your machine’s requirements (often below 15%). You may need to use a crusher or a dryer to achieve this.

Machine Inspection: Before starting, thoroughly inspect the briquette machine for any loose bolts, worn parts, or obstructions. Pay close attention to the screw propeller, forming die, and heating elements.

Lubrication: Check and lubricate all necessary parts as indicated in the machine’s manual. Proper lubrication is crucial for smooth operation and longevity.

Cooling System (if applicable): If your machine has a cooling system (often water-based), ensure it is properly connected and filled.

Electrical Connections: Verify that the machine is correctly connected to a stable power supply with the correct voltage. Ensure all wiring is secure and the machine is properly grounded.

Safety Checks: Make sure all safety guards and emergency stop buttons are in place and functioning correctly. Ensure the work area is clear of any obstructions and that a fire extinguisher (powder, foam, or CO2) is readily accessible. Operators should wear appropriate personal protective equipment (PPE) such as respirator masks.

2. Machine Start-Up

Main Switch: Turn on the main power switch of the machine.

Heating System: If your machine uses heat to soften the lignin in the raw material, turn on the heating system and set the temperature to the required level (typically between 120-300°C depending on the material). Allow sufficient time for the machine to reach the set temperature.

No-Load Running: Once the machine reaches the operating temperature (if applicable), run it without any raw material for a few minutes (around 3-30 minutes as per some recommendations). Listen for any unusual noises or vibrations. If any abnormalities occur, stop the machine immediately and identify the issue.

3. Briquette Production

Material Feeding: Gradually start feeding the prepared raw material into the hopper. Begin with a small amount and slowly increase the feeding rate until briquettes are formed consistently and are of good quality. Avoid overfeeding, which can cause blockages.

Monitoring Briquette Quality: Continuously monitor the quality of the produced briquettes. Check for density, shape, cracks, and surface finish. Adjust the feeding rate, temperature (if applicable), and pressure as needed to maintain optimal quality.

Temperature Regulation: Maintain the set temperature of the heating elements to ensure proper briquetting. Fluctuations in temperature can affect the quality of the briquettes.

Discharge Area: Ensure the briquettes are discharged smoothly and there is adequate space for them to accumulate or be conveyed away. Some suggest directing the output towards a wall with a plank in front initially.

4. Machine Shut-Down

Stop Feeding: Gradually stop feeding raw material into the hopper.

Empty the Machine: Allow the machine to continue running until all the material inside the forming chamber and screw conveyor is expelled.

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More detailed information about how to operate the briquetting machine can be found at: https://www.zymining.com/en/a/news/briquetting-machine-operation.html

Choosing the right screw conveyor is critical for ensuring efficient and reliable material handling in various industries. Whether you’re moving fine powders, granular materials, or semi-solid waste, selecting a conveyor that matches your specific application can enhance productivity, reduce maintenance costs, and prolong equipment life. With numerous configurations, materials, and designs available, it can be overwhelming to find the perfect fit. This guide will walk you through the essential factors to consider when choosing a screw conveyor, including material type, capacity, angle of inclination, and operational environment, helping you make a well-informed decision tailored to your needs.

Screw Conveyor Choose

1. Define the Material Being Conveyed (Most Critical Step):

Material Name: Be specific (e.g., “Portland Cement,” “Soybean Meal,” “Wet Sand”).

Bulk Density: Weight per unit volume (e.g., lbs/ft³ or kg/m ³). Essential for capacity calculations and power requirements.

Particle Size & Distribution: Is it fine powder, granular, pellets, lumpy, stringy? Give minimum, maximum, and average sizes if possible.

Flowability: How easily does it flow? (e.g., free-flowing, sluggish, sticky, fluidizable). Look up its Angle of Repose if possible.

Abrasiveness: Does it wear down equipment? (e.g., sand, alumina are highly abrasive). This dictates material choices for screw and trough.

Corrosiveness: Does it chemically attack materials? (e.g., acids, salts). Affects material choices (stainless steel grades, special coatings).

Temperature: Operating temperature of the material. Affects material selection, bearing/seal types, and potential expansion/contraction.

Moisture Content: Can significantly affect flowability, stickiness, and corrosiveness.

Friability: Is the material easily broken or degraded? May require slower speeds or specific flight designs.

Special Characteristics:

Hygroscopic: Absorbs moisture from the air.

Explosive/Flammable: Requires specific safety measures (explosion-proof motors, grounding, proper sealing).

Toxic/Hazardous: Requires containment (fully enclosed, specific seals).

Food Grade/Sanitary: Requires specific materials (stainless steel), finishes (polished), and design features (easy-clean, no crevices).

Sticky/Builds Up: May necessitate shaftless design, special coatings, or specific flight types.

2. Determine Required Capacity (Throughput):

Rate: How much material needs to be moved per unit of time? Specify units clearly (e.g., tons per hour (TPH), kg/min , cubic feet per hour (CFH), m³/hr).

Basis: Is the rate based on weight or volume? Be consistent. If based on weight, you need the bulk density to convert to volume for sizing.

3. Define the Conveyor Configuration:

Conveying Distance: The horizontal (or inclined) length from the center of the inlet to the center of the outlet.

Inclination Angle: Is the conveyor horizontal (0°) or inclined? Inclines significantly reduce capacity and increase power requirements. Specify the angle accurately. Vertical conveyors (90°) are a special category.

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For more detailed information on how to choose a suitable screw conveyor, please click here: https://www.zymining.com/en/a/news/screw-conveyor-choose.html

Separating sticky materials poses a significant challenge in screening operations, especially in industries like mining, recycling, and agriculture. Traditional vibrating screens often struggle to handle sticky, moist, or cohesive materials due to screen blinding, material buildup, and reduced screening efficiency.

However, with proper screen design, vibration techniques, and surface treatments, vibrating screens can effectively separate even the most difficult-to-process materials. Understanding the right methods and equipment configurations is key to optimizing performance and minimizing downtime when dealing with sticky substances.

How to Separate Sticky Materials by Vibrating Screen

Effectively separating sticky materials requires modifications to the screen, the process, or sometimes the material itself. Here’s how to approach it:

1. Screen Media Selection & Configuration:

Self-Cleaning Screen Media: This is often the most effective solution.

Polyurethane or Rubber Screens: These materials are flexible. The inherent vibration causes the flexible strands or apertures to constantly move, flexing and contracting, which helps dislodge sticky particles and prevent blinding. They come in various aperture shapes (square, slotted, round).

Wire Mesh with Flexible Elements: Some wire mesh designs incorporate polyurethane strips or other flexible components to achieve a similar self-cleaning effect.

Piano Wire / Harp Screens: Composed of individual longitudinal wires that can vibrate independently at high frequencies. This vigorous, independent movement is very effective at preventing blinding with near-size particles and slightly sticky material. Less robust than polyurethane.

Larger Aperture (If Possible): Using a slightly larger aperture than theoretically required can sometimes reduce blinding, but this depends on the acceptable product specification.

Slotted Apertures: Long, narrow openings can sometimes handle sticky materials better than square openings, especially if the particle shape allows passage. Orient slots parallel to the material flow.

2. Anti-Blinding Devices:

These are retrofitted or built-in systems designed to actively clear the mesh:

Ball Trays / Ball Decks: A perforated plate is installed below the screen mesh, creating compartments containing rubber or polyurethane balls. As the screen vibrates, the balls bounce aggressively against the underside of the screen mesh, dislodging stuck particles. Very common and effective for moderate stickiness.

Slider Decks / Ring Decks: Similar in concept to ball trays, but use plastic rings or sliders that move back and forth beneath the mesh, scraping or knocking particles loose. Can be effective for materials that might trap or damage balls.

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For more detailed information on how to use vibrating screen to separate sticky materials, please visit: https://www.hsd-industry.com/news/how-to-separate-sticky-materials-by-vibrating-screen/

The vibration force of a vibrating screen is a critical factor that directly impacts screening efficiency, material flow rate, and overall equipment performance. Whether you’re dealing with fine powders or coarse aggregates, proper adjustment of vibration force ensures optimal separation and prevents excessive wear or mechanical failure. Understanding how to fine-tune the vibration settings can help you adapt to different materials, improve productivity, and extend the lifespan of your machine. In this guide, we’ll walk you through the basic principles and step-by-step methods for adjusting the vibration force of your vibrating screen effectively and safely.

Vibrating screen vibration force adjustment

Adjusting the vibration force (often referred to as excitation force or G-force) of a vibrating screen is crucial for optimizing screening efficiency, preventing damage to the screen, and adapting to different material types or feed rates. The exact method depends heavily on the specific design of the screen’s vibrator mechanism, but here are the common ways it’s done:

1. Adjusting Eccentric Weights (Most Common Method):

Mechanism: Most vibrating screens use rotating shafts with eccentric counterweights. The rotation of these unbalanced weights generates the vibration. The amount of force generated depends on the mass of the weights and their distance from the center of rotation (eccentricity).

How to Adjust:

Adding/Removing Weight Plates: Many systems have counterweights composed of several stacked plates or blocks. By adding or removing these plates (usually in symmetrical pairs on both sides of the shaft or on corresponding shafts), you change the total rotating unbalanced mass, thus increasing or decreasing the vibration force.

Changing Weight Position (Angle/Radius): Some designs feature adjustable counterweights that can be rotated relative to the shaft or to each other.

Single Adjustable Weight: A single block might be designed to slide radially outwards (increasing force) or inwards (decreasing force) and then be locked in place.

Multiple Adjustable Weights: Often, there are two or more weight segments per side. By changing the angle between these segments, you change the effective eccentricity (the distance of the combined center of mass from the shaft center). Moving them closer together (aligned) maximizes the force; moving them further apart (opposed) minimizes or cancels out the force.

Location: These weights are typically located at the ends of the vibrator shaft(s), often enclosed within protective guards.

Procedure:

Safety First: ALWAYS lock out and tag out the power supply to the screen before removing guards or making adjustments.

Remove the protective guards covering the eccentric weights.

Loosen the bolts securing the weights.

Add/remove plates or adjust the angular position of the weights according to the manufacturer’s instructions. Crucially, adjustments must be identical on both sides of the screen (or on corresponding shafts) to maintain balanced vibration and prevent damage.

Ensure weights are securely tightened to the specified torque.

Reinstall the guards.

Test run the screen and observe performance.

2. Adjusting Speed (RPM):

Mechanism: Vibration force is proportional to the square of the rotational speed (RPM). Therefore, changing the speed significantly impacts the force.

How to Adjust:

Variable Frequency Drive (VFD / VSD): If the screen motor is controlled by a VFD, adjusting the frequency output directly changes the motor speed and thus the vibration force. This is the easiest and most flexible method if available.

Changing Pulleys (Sheaves): For belt-driven systems without a VFD, you can change the size ratio of the motor pulley and the vibrator shaft pulley. A smaller motor pulley or a larger vibrator pulley will decrease speed (and force); a larger motor pulley or a smaller vibrator pulley will increase speed (and force). This requires calculating the correct pulley sizes and potentially changing the belt length. This is a less common adjustment method used more for initial setup or major process changes.

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For more detailed information on how to adjust the excitation force of the vibrating screen, please click here:https://www.hsd-industry.com/news/vibrating-screen-vibration-force-adjustment/

Jaw crusher liners play a crucial role in the crushing process, protecting the crusher’s components while enhancing efficiency and durability. The choice of liner material depends on factors such as feed material hardness, abrasiveness, and operating conditions. Choosing the right liner material for your jaw crusher is crucial for maximizing its lifespan, efficiency, and overall performance.

Jaw Crusher Liner Material Choose

1. Understanding the Application & Requirements:

Material Being Crushed (Feed Material):

Type: What kind of rock or material are you crushing? (e.g., granite, limestone, basalt, ore, recycled concrete, etc.)

Abrasiveness: Highly abrasive materials (like granite and some ores) will wear liners down much faster.

Hardness (Mohs Scale or Brinell Hardness): The harder the material, the more resistant the liner needs to be.

Size and Shape of Feed: Larger, angular material puts more stress on the liners.

Moisture Content: Wet or sticky material can cause buildup and impact liner wear.

Crusher Size and Type: The size and specific design of your jaw crusher (e.g., single toggle, double toggle) will influence the liner design and material suitability.

Desired Production Rate: A higher production rate generally means more wear on the liners.

Operating Conditions:

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For more detailed information on how to choose the lining material of jaw crusher, please click to visit: https://www.yd-crusher.com/a/news/jaw-crusher-liner-material-choose.html