The adhesive, there are many types of adhesive, such as: starch, bentonite, clay, palm wax,paraffin,kaolin,molasses, starch paste,gum,bentonite,dextrin lime,sodium silicate, carboxymethyl cellulose, Sodium Lignosulphonate,etc. It can be one or a mixture of two or more of the above adhesive.
Choosing the right adhesive depends on the purpose of the briquette and the ease of obtaining the adhesive and economic analysis.with different usage, we may choose different adhesives for our briquette. For example, starch, which is a very common adhesive and easy to get, also make a good performance on briquette making, it is widely used to make BBQ charcoal as it’s natural and smokeless way. But in industrial usage like make briquette for furnace, as the high temperature strength of starch is that bad, silicon-containing adhesives widely used this time.
Adhesive, the secret to making briquettes. therefore, there are many companies on the market that specialize in making and selling adhesive. they can make the suitable adhesive for you according to your needs. of course, you can prepare your own adhesive according to your needs.

• Barbecue Charcoal Adhesive

commonly used machine types: screw extrusion type, roller type, stamping type, hydraulic type
Use pure starch, such as corn starch, potato starch, potato starch, tapioca starch, wheat starch, rice starch, etc.
Adding ratio: 2-5%, different purity, different adding ratio
Typically, starch needs to be thoroughly cooked in water between 60°C and 80°C to gelatinize. This temperature breaks intermolecular bonds, creates hydrogen bonding sites to attach additional water molecules, and makes starch soluble in cold water. After cooking, the starch is dried in a spray dryer, drum dryer or extruder. You can buy pregelatinized starch, but it’s much more expensive than raw starch.
When starch is gelatinized, the ratio of starch to hot water is 1:3-1:5

• Hookah Charcoal Adhesive

commonly used machine types: screw extrusion type, hydraulic type
Generally, customers who smoke hookah charcoal expect the charcoal ash to be white, but in fact, the color of the charcoal ash is directly related to the raw materials. According to our experience, if the soil contains calcium, then the gray color is white. Soil contains potassium, which turns gray into brown. Moreover, additives in hookah charcoal, such as deliming agent (lime), will also change the color of charcoal ash. However, no matter what the color of the ash after combustion is, it actually has little effect on the quality of hookah charcoal, it is just a different sensory experience.
However, ash content is also one of the indicators to measure the quality of hookah charcoal. Good quality hookah charcoal requires an ash content of no more than 6% (weight basis).
Preparation method:
(a) Mix coconut shell charcoal powder, volcanic stone powder (or glass powder), potassium nitrate, sodium carboxymethyl cellulose, and glucose evenly;
(b) Add a certain proportion of water to the mixed powder, stir it thoroughly, pour it into the tablet press, and press it into shape;
(c) Place the pressed material in a drying device to dry, to obtain coconut shell raw material flake shisha charcoal.
The mass percentage of each component is: volcanic stone powder 10%-30%, potassium nitrate 6%-20%, sodium carboxymethyl cellulose 0.5%-10%, glucose 0.5%-10%, and the remaining ingredients are coconut shell charcoal pink.
The mass of water added is 0.3-5 times the mass of the powder.
Mix a certain mass fraction of coconut shell charcoal powder (80%), volcanic stone powder (10%), potassium nitrate (5%), sodium carboxymethyl cellulose (4.5%), and glucose (0.5%), and add the mass of the powder 0.2 times of water, stir thoroughly, pour it into a tablet press, press it into shape, and dry it in a drying device to obtain flake coconut shell hookah charcoal. The obtained coconut shell shisha charcoal takes 8 seconds to ignite, and the combustion duration of each gram of coconut shell shisha charcoal is 15 minutes. The combustion is clean and safe, and there is no ash flying during the combustion process.

• Civil Fuel Coal or Gas Briquette Adhesive

Commonly used machine types are screw extrusion type, roller type, stamping type, hydraulic type
There are many formulas. For details, please refer to the detailed adhesive formula. Examples are listed below.
Sodium nitrate 20-50, magnesium chloride 10-30, sodium chloride 10-20, ammonium chloride 5-20, light magnesium oxide 10-40, calcium oxide 5-20, cellulose 20-30. The described preparation method of briquette desulfurization, waterproofing and combustion-supporting binder is made by the following steps:
1) Crush the above ingredients into 60-350 mesh, measure according to the required weight, and set aside;
2) After proportioning according to the weight parts required by the formula, put the above raw materials into the mixer, mix and mix evenly.
3) After the mixed products pass the inspection, they are packaged and put into storage.
Among the above ingredients, sodium nitrate, sodium chloride, and cellulose play a role in supporting combustion during the reaction process, and increase the combustion reaction activity of coal to achieve full and complete combustion of briquettes; magnesium chloride, sodium chloride, light magnesium oxide, oxidation Calcium generates magnesium oxide cementing components during the reaction process, which plays a bonding, waterproofing and reinforcing role. Light magnesium oxide and calcium oxide play a role in fixing sulfur during the reaction process, causing the sulfur dioxide in the coal to react to generate magnesium sulfate and calcium sulfate, which are retained in the ash residue, so that the flue gas emissions meet environmental protection requirements.
Compared with the prior art, the beneficial effects of the present invention are:
1) Low cost of use, a very small increase in ash content of briquettes does not affect the calorific value of raw coal, and can improve the combustion reaction of briquettes.
It is reactive, quick to catch fire, has a long flame, and can burn completely and fully.
2) Strong waterproof performance, the briquettes can be soaked in water for 8 hours and then baked, with a compressive strength of 810SSD (N/piece) and
There is no significant change compared with the initial compressive strength of 808SSD (N/unit). After being soaked in water for 72 hours, the sphere showed no change. Briquettes can be stacked in the open air and are easy to store.
3) The mechanical strength is 98.7%. It will not be broken or damaged during production, transportation, storage and use.
4) When burning briquettes, no black smoke is emitted, only a small amount of blue-white smoke is emitted, and the sulfur fixation rate reaches more than 60%. It is an ideal energy-saving and environmentally friendly product.

• Briquette Adhesive for Steel Mills

Commonly used machine types are roller type.
Based on different steelmaking processes, special adhesives are used.
Most of them contain Si element and require heat intensity. The steelmaking furnace temperature is about 1000-1400℃, blast furnace or rotary hearth furnace or electric arc steelmaking furnace.
Liquid binders that are stable at high temperatures, such as sodium silicate (water glass) or aluminum phosphate, can also be added to prevent segregation, such as molasses or sulfurous acid waste liquid.