Side loading coal method for mechanical coke oven

Abstract

The method of side loading coal in mechanical coke oven includes pressing mixed coal into briquette, packing single briquette with inflammable matter, stacking in large packing box of inflammable matter, covering with heat insulating hood, eliminating the heat insulating hood after loading in the oven, and closing the oven door for coking. The present invention presses the mixed coal into briquette to raise the bulk density of coal in the oven, raises the strength of coke and makes it possible to increase the mixed weakly viscous coal to low cost and lower the ash, sulfur, phosphorus and other harmful components in coke. Packing the briquette can avoid the direct contact between the briquette and high temperature inside the oven to avoid raw gas, smoke and dust and to increase lump size of coke. The said coal loading method has less investment, high efficiency, high coke strength, and other advantages.

Description

Technical field:

[0001] The invention relates to a coking coal charging method for a mechanical coke oven, in particular to a side coal charging method for a mechanical coke oven. Background technique:

[0002] For coking in mechanical coke ovens, the higher the proportion of coal blended into the furnace, the better the coke strength and the higher the market price. The main way to increase the specific gravity of the pile is to compress part of the blended coal into small coal or tamp it all. The specific gravity of the pile is high. When the coke strength is required to be certain, more weakly caking coal can be added. The price of weakly caking coal is low, and at the same time it can reduce impurities such as ash, sulfur, and phosphorus in the coke. High-grade coke is coke with high strength, good lumpiness and less impurities. For coking in mechanical coke ovens, different furnace loading methods can be used to increase the heap specific gravity of coal blended into ...

Examples

Embodiment 1

[0013] Embodiment 1: The best implementation mode: the clean coal through coal blending is under a certain humidity, and the clean coal is made into briquettes by using a pressure forming machine (generally, presses such as a non-fired brick machine or a briquette machine can be used) , Thermoforming technology can also be used. Use cheap and combustible packaging materials, such as waste newspapers, horse manure paper, etc., to pack the coal bricks individually, and put them in multiple larger cartons, and cover the outside with high temperature resistant thermal insulation cloth (such as asbestos cloth, carbon fiber cloth, etc.) or other heat insulation devices, when the bottom of the side loader exits the carbonization chamber, quickly withdraw the heat insulation cloth or heat insulation cover, close the furnace door, and start coking. The size of briquettes and packing boxes is designed according to the volume of the carbonization chamber. The large box packaging is easy...

Embodiment 2

[0014] Example 2: After coal blending is pressed into briquettes, the briquettes are individually packaged with combustible packaging, and after being stacked and boxed, the outside of the large box can be coated with a high-temperature-resistant paint for a certain period of time or sprinkled with a certain amount of water, and loaded into the furnace from the side , when the water evaporates at high temperature, the side loader has pushed the coal bricks into the carbonization chamber and closed the furnace door, which can achieve the same environmental protection effect, and the coke produced has high strength and good lumpiness.

Embodiment 3

[0015] Example 3: After coal blending is pressed into coal briquettes, they are individually packaged and stacked directly on the side loading machine, covered with a heat-resistant heat-insulating cover outside. After side-loading into the furnace, the heat-insulating cover is withdrawn and the furnace door is closed. The thermal insulation device of this embodiment temporarily isolates the contact between the briquettes and the high temperature in the carbonization chamber, and prevents the briquettes from burning in large quantities before closing the furnace door to produce harmful gases such as waste gas.

Technical field:

[0001] The invention relates to a coking coal charging method for a mechanical coke oven, in particular to a side coal charging method for a mechanical coke oven. Background technique:

[0002] For coking in mechanical coke ovens, the higher the proportion of coal blended into the furnace, the better the coke strength and the higher the market price. The main way to increase the specific gravity of the pile is to compress part of the blended coal into small coal or tamp it all. The specific gravity of the pile is high. When the coke strength is required to be certain, more weakly caking coal can be added. The price of weakly caking coal is low, and at the same time it can reduce impurities such as ash, sulfur, and phosphorus in the coke. High-grade coke is coke with high strength, good lumpiness and less impurities. For coking in mechanical coke ovens, different furnace loading methods can be used to increase the heap specific gravity of coal blended into ...

Examples

Embodiment 1

[0013] Embodiment 1: The best implementation mode: the clean coal through coal blending is under a certain humidity, and the clean coal is made into briquettes by using a pressure forming machine (generally, presses such as a non-fired brick machine or a briquette machine can be used) , Thermoforming technology can also be used. Use cheap and combustible packaging materials, such as waste newspapers, horse manure paper, etc., to pack the coal bricks individually, and put them in multiple larger cartons, and cover the outside with high temperature resistant thermal insulation cloth (such as asbestos cloth, carbon fiber cloth, etc.) or other heat insulation devices, when the bottom of the side loader exits the carbonization chamber, quickly withdraw the heat insulation cloth or heat insulation cover, close the furnace door, and start coking. The size of briquettes and packing boxes is designed according to the volume of the carbonization chamber. The large box packaging is easy...

Embodiment 2

[0014] Example 2: After coal blending is pressed into briquettes, the briquettes are individually packaged with combustible packaging, and after being stacked and boxed, the outside of the large box can be coated with a high-temperature-resistant paint for a certain period of time or sprinkled with a certain amount of water, and loaded into the furnace from the side , when the water evaporates at high temperature, the side loader has pushed the coal bricks into the carbonization chamber and closed the furnace door, which can achieve the same environmental protection effect, and the coke produced has high strength and good lumpiness.

Embodiment 3

[0015] Example 3: After coal blending is pressed into coal briquettes, they are individually packaged and stacked directly on the side loading machine, covered with a heat-resistant heat-insulating cover outside. After side-loading into the furnace, the heat-insulating cover is withdrawn and the furnace door is closed. The thermal insulation device of this embodiment temporarily isolates the contact between the briquettes and the high temperature in the carbonization chamber, and prevents the briquettes from burning in large quantities before closing the furnace door to produce harmful gases such as waste gas.