A method for preparing molded coke from low-modified pulverized coal, heavy oil, and tar residue
A low-modification pulverized coal and tar slag technology, applied in the field of coal chemical industry, can solve the problems of less reserves, less coking coal sources, and difficulty in meeting the development needs of the metallurgical industry, and achieve the effect of expanding the field of use
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Embodiment 1
[0034] Such as figure 1 As shown, a method for preparing molded coke with low metamorphic pulverized coal, heavy oil, and tar residue as raw materials comprises the following steps:
[0035] Step 1, after the low metamorphic pulverized coal and the tar residue are pretreated by grinding and screening, the particle size of the low metamorphic pulverized coal is controlled to 80 mesh, and the particle size of the tar residue is controlled below 3mm;
[0036] Step 2: According to weight percentage, take 70% of low metamorphic coal powder with a particle size of less than 80 mesh, 15% of heavy oil, and 15% of tar residue, and put them together into a beaker for stirring. After the materials are evenly mixed, put them into a mold , cold-pressed under a pressure of 6Mpa to obtain cylindrical briquettes (Φ30mm×20mm).
[0037] In step 3, the prepared coal briquettes are intensively treated at a low temperature of 300° C. for 40 minutes, and then taken out and cooled to room temperatu...
Embodiment 2
[0040] Such as figure 1 As shown, a method for preparing molded coke with low metamorphic pulverized coal, heavy oil, and tar residue as raw materials comprises the following steps:
[0041] Step 1, after the low metamorphic pulverized coal and the tar residue are pretreated by grinding and screening, the particle size of the low metamorphic pulverized coal is controlled to 80 mesh, and the particle size of the tar residue is controlled below 3mm;
[0042] Step 2: According to weight percentage, take 65% low-deteriorated coal powder with a particle size of less than 80 mesh, 15% heavy oil, and 20% tar residue, and put them together into a beaker for stirring. After the materials are evenly mixed, put them into a mold , cold-pressed under a pressure of 6Mpa to obtain cylindrical briquettes (Φ30mm×20mm).
[0043] In step 3, the prepared briquettes are subjected to intensive treatment at a low temperature of 200° C. for 40 minutes, and then taken out and cooled to room temperature...
Embodiment 3
[0046] Such as figure 1 As shown, a method for preparing molded coke with low metamorphic pulverized coal, heavy oil, and tar residue as raw materials comprises the following steps:
[0047] Step 1, after the low metamorphic pulverized coal and the tar residue are pretreated by grinding and screening, the particle size of the low metamorphic pulverized coal is controlled to 80 mesh, and the particle size of the tar residue is controlled below 3 mm;
[0048] Step 2: Take 75% of low-deteriorated coal powder with a particle size of less than 80 mesh, 10% of heavy oil, and 15% of tar residue according to weight percentage, and put them together into a beaker for stirring. After the materials are evenly mixed, put them into a mold , cold-pressed under a pressure of 6Mpa to obtain cylindrical briquettes (Φ30mm×20mm).
[0049] In step 3, the prepared coal briquettes are intensively treated at a low temperature of 300° C. for 40 minutes, and then taken out and cooled to room temperat...
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