Best briquette machine for briquetting salt, DRI, ore, mill scale for sale

Cold roll briquette machine is a roll type briquetter used for room temperture briquetting work. It can work under a very high pressure and make briquette under a low moisture with shapes like oval, pillow, square, etc. Widely used in industries like metugally, mining, chemical, etc.

Served Industries: Fuel, Mining, Metallugry, Chemical, Building, Foods, etc.

Common material: Coal, steel mill by-product, ores, charcoal, metal, salt, etc.

MAXTON supplies spare parts for roller briquette machines, including rollers, screws, and more, ensuring comprehensive support for your maintenance needs.

Working Principles

The material passes through the buffer bin, and then goes past the feeder, quantitatively and evenly enters the feed port of the roll briquette machine. After that, it reaches the pre-compression feeding device of the machine.

To maintain a stable material level in the pre-compression feeding device, the screw in the pre-compression feeding device will force the material into the middle of the rolls. The screw will pre-compress the material and remove the gas as much as possible from particles, and moves the material to be transported to the middle of two rolls.

At the arc-shaped notch of the rollers, the pockets of the same shape are evenly distributed on the surface of the two rolls. Through the meshing transmission of the synchronous gear reducer, the two rollers run at the same speed and opposite to each other, thus the material will be transported to the arc-shaped notch. The material is bitten into the groove and forced to compress. As the rolls continue to rotate, when they exceed the center line, the finished briquette will fall out of the pocket under the action of its own elasticity and gravity, thereby completing the process of briquette making.

Structure and Main Components

structure of the hydraulic roll briquette press

1. Angle reducer 2. Main motor 3. Main gearbox 4. Coupling 5. Hydraulic station 6. Main frame 7. Screw feeding (optional)

Transmission

Motor——V belt——Double shaft output reducer——Coupling——Rolls

Feeding

Screw or double screw feeding or gravity feeding. Specially designed sealing structure.

Output

Belt output or customized.

Main frame

Surface is cold worked, beams are connected by high-strength bolts.

Lubrication

Central lubrication or point lubrication.

Features

Roll raw material comes from high-quality suppliers, supplemented by Maxton’s excellent processing capabilities and quality control, the life of the roll is very high.
Different roll assembly forms to meet the needs of different customers. Common assembling: tire roll, segment, etc.
Driven by hard-tooth surface output double-shaft reducer, the pressure on the rollers is evenly distributed, the life of the roll is greatly extended.
Reducer comes from top suppliers or Maxton shall produce and manufactures itself to ensure the continuous operation of the equipment under harsh working conditions and provide a strong guarantee for the customer’s operation.
Different feeding forms and feeding structures meet the different requirements of customers. The materials used for the feeding screw are exquisite, and the working life of the screw is improved by using wear-resistant materials and wear-resistant technology.
Sealing structure is improved, no material leakage at low levels after long-term operation, helping customers improve the briquette quality and save running costs.

Applications & Materials

Cokes, coal and charcoal (production of briquettes for home heating or industrial purpose (partial coke oven charge, brìquettes treated to obtain form coke, briquettes for gasification); Coal for production of activated carbon; Lignite, peat; )
Steel mill by-products (Mill scales, Steel-grids, Mill sludges/dust, Blast furnace sludges, EAF dust, Iron pellet fines, DRI fines, Ferro alloy fines, Coal + Coke fines, etc.)
Clay
Lime, dolomite, magnesite, high purity magnesium oxide, caustic calcined magnesia
Salt
Minerals (alumina, bauxite, lime, dolomite, China clay, magnesia, fluorspar (fluorite), paint pigments, sulphur, chromium, cobalt, copper, iron, manganese, lead, zinc, etc.)
Specialty chemicals
Lithium carbonate
Micronutrients/Fertilizers
Gypsum from power station flue gas desulphurisatìon (FGD gypsum)
Chemicals (sodium sulphate, sodium chloride, carbonates, sodium cyanide, potassium cyanide, iron sulphate, maleic anhydride, potassium bromide, boric acid, urea, calcium hypochlorite, etc.)
Dried sewage sludge
Sugar
Frozen food
Soda ash
Metal (aluminum chip, copper chip, electrolytic manganese, etc.)

Systems

Briquette with binder

The role of the binder is to reduce the friction between the material particles and between the particles and the pocket. The binder is generally a liquid or a soft and easily deformable substance, which has two functions:

1. A layer of binder which is evenly wrapped on the surface of the material particles can greatly reduce the roughness of the particle surface, facilitates the sliding between materials;

2. When the material particles move relative to the pocket, the binder lubricates the ball socket, which greatly reduces the friction between the material and the ball socket, which is beneficial to briquetting and increases the service life of the roll.

Special binder can also help to improve the performance of the finished briquette like water proof, high high-temperature strength, etc. typical briquetting making process with binder from Maxton

Examples:

Chrome ore with molasses/hydrated lime
Coal with bitumen
Coke fines with starch
Copper-nickel concentrate with lignosulfonate
DRI fines with molasses/ hydrated lime or sodium silicate / hydrated lime
Steel plant residues with molasses / hydrated lime

Briquette without binder

So many advantages of following a binder free briquetting way, raw materials are saved, a simple process, purer briquette, no harmful substances from binders, etc.

Binder-free briquette making, normally when the size of the raw material is suitable, the material is added to the briquetter at a constant speed and then make the briquette. In some cases, it is necessary to use the plasticity of the raw material under certain special conditions before briquetting.

typical briquetting process without binder from Maxton

Examples:

Aluminum
Bentonite
Burnt lime
CaO
Caustic dolomite
Caustic magnesia
MgO
Clay
Gypsum
Lateritic iron ore
Lignite
Salt NaCl
Maleic anhydride

Project Showcase

Stainless Steel Mill Scale

Coke

DRI

iron ore briquette machine for blast furnace, shaft furnace and rotary kiln

Iron Ore Concentrate

Parameters

According to the characteristics, applications and pressure needed for different materials. Maxton’s cold roll briquette machines are divided into 3types: medium and low pressure roll press (specific pressing force ≤ 50kN/cm), high pressure roll press (specific pressing force ≥50kN/cm), extreme high pressure roll press (specific pressing force above 150 kN/cm).

Medium and low pressure briquette machine
Model	Roll diameter (mm)	Roll width (mm)	Total pressure (kN)	Specific pressing force (kN/cm)	Capacity (m3/h)	Main power (kW)
ZY4320	430	200	1000	50	2.7	30-37
ZY4332	430	320	1000	30	4.5	30-37
ZY5235	520	350	1500	50	4.1	45-55
ZY5242	520	420	1500	30	7	45-55
ZY6540	650	400	2200	50	9.6	75-90
ZY6560	650	600	2200	30	14.4	75-90
ZY6548	750	480	3000	50	11.5	132-160
ZY7568	750	680	3000	30	16.6	132-160
ZY10090	1000	900	5000	50	27.5	2*(110-132)

Optional:

Screw feeding or gravity feeding;
Tool steel roll tire;
Segment roll;
Spring pressing (low pressure type);
Central lubrication;

High pressure roll briquette machine
Model	Roll diameter (mm)	Roll width (mm)	Total pressure (kN)	Specific pressing force (kN/cm)	Capacity (m3/h)	Main power (kW)
GY430-100	430	100-120	1000	80-110	1.3-1.6	30-37
GY520-150	520	150-200	1500	80-110	2-2.7	55-75
GY650-220	650	200-270	2200	80-110	4.8-6.5	90-110
GY750-300	750	280	3000	110	6.7	185
GY800-380	800	350	3800	110	8.4	200
GY850-400	850	360	4000	110	9.5	250
GY1000-500	1000	500	5000	100	15	315
GY1200-800	1200	800	6000	125	23	500
GY1400-1000	1400	1000	10000	100	35	2*315

Optional:

Tool steel roll tire;
Segment roll;
Central lubrication;

Extreme high pressure roll press
Model	Roll diameter (mm)	Roll width (mm)	Total pressure (kN)	Specific pressing force (kN/cm)	Capacity (m3/h)	Main power (kW)
CGY650-220	650	120	2200	200	2.9	132
CGY750-330	750	160	3300	200	3.8	200
CGY850-400	850	200	4000	200	5.3	250
CGY1000-500	1000	250	5000	200	7.5	315
CGY1200-800	1200	400	8000	200	11.5	500-560