Pulverized coal forming method for solving long-distance transportation problem of low-metamorphic bituminous coal
A technology of long-distance transportation and molding method, which is applied in the field of railway transportation to achieve the effect of solving long-distance transportation, high molding rate and good quality
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Embodiment 1
[0021] like figure 1 As shown, a pulverized coal molding method to solve the problem of long-distance transportation of low metamorphic bituminous coal includes the following steps:
[0022] Step 1, crushing, screening and drying the low metamorphic non-caking coal;
[0023] Step 2: Take 85wt% Fugu non-sticky coal and 6wt% hydroxypropyl methylcellulose and mix them in a beaker according to weight percentage, add 9wt% water after mixing evenly, fully stir and mix, pack Put it into the mold and place it under the pressure of 30MPa for cold pressing, and press for 5 minutes to get cylindrical briquettes Each briquette weighs about 12g.
Embodiment 2
[0025] like figure 1 As shown, a pulverized coal molding method to solve the problem of long-distance transportation of low metamorphic bituminous coal includes the following steps:
[0026] Step 1, crushing, screening and drying the low metamorphic non-caking coal;
[0027] Step 2: Take 85wt% Fugu non-sticky coal and 6wt% hydroxypropyl methylcellulose and mix them in a beaker according to weight percentage, add 9wt% water after mixing evenly, fully stir and mix, pack After entering the mold, place it under a pressure of 40MPa and cold press it to form a cylindrical shaped coal after pressing for 10 minutes Each briquette weighs about 12g.
Embodiment 3
[0029] like figure 1 As shown, a pulverized coal molding method to solve the problem of long-distance transportation of low metamorphic bituminous coal includes the following steps:
[0030] Step 1, crushing, screening and drying the low metamorphic non-caking coal;
[0031] Step 2: Take 88wt% Fugu non-sticky coal and 3wt% hydroxypropyl methylcellulose and mix them in a beaker by weight percentage, add 9wt% water after mixing evenly, fully stir and mix, pack After entering the mold, place it under a pressure of 30MPa and cold press it to form a cylindrical shaped coal after pressing for 10 minutes Each briquette weighs about 12g.
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