Activated carbon production equipment is generally kiln type, vertical furnace structure or external heating type, internal heating type rotary furnace, such as vertical activation furnace and rotary carbonization furnace to produce activated carbon: raw materials are added to the carbonization furnace through a bucket elevator or belt conveyor, and the furnace head is The furnace gas is heated, and the hot flue gas contacts the material in a counter-current manner. As the temperature gradually increases, the processes of preheating, drying, dehydration, cracking and carbonization are completed in sequence; the carbonized material produced is discharged from the tail of the furnace and is cooled and stored in the warehouse. The tail gas is burned in the waste heat boiler and then emptied; the carbonized material is added from the top of the vertical activation furnace through lifting equipment, and is activated by high-temperature water vapor and discharged from the bottom of the furnace, which is the finished activated carbon.
The above-mentioned carbonization furnace and activation furnace are set up independently of each other, requiring high raw material processing and transportation costs; the structure of the furnace body is difficult to achieve the desired temperature control, resulting in low output of activated carbon and poor product quality stability; commonly used internal heating steam Although the activation furnace can adjust the temperature inside the cylinder through secondary ventilation and other devices, it is difficult to achieve the technical requirements of controlling the carbonization temperature at 400-650°C and the activation temperature at 700-900°C; in addition, an independent boiler is required. Provide the steam required for activation; the furnace body lacks a waste heat recovery device and a combustible gas reuse device, resulting in a waste of heat energy and resources.
In view of the shortcomings of the existing technology, the present utility model proposes an equipment for producing activated carbon, which can reduce costs, control the carbonization reaction temperature of the furnace body, improve the production capacity and quality of activated carbon, and reduce resource losses.
The utility model is realized through the following technical solutions: an equipment for producing activated carbon, including a carbonization part and an activation part connected to the carbonization part. The carbonization part is provided with a first feed hopper, and also includes a combustion part. part, the combustion part includes an oil tank body, a furnace body placed in the oil tank body, a second feed hopper and a plurality of water vapor pipes, the furnace body is connected with the carbonization part to provide the carbonization The water vapor pipe is connected to the activation part to provide high-temperature steam to the activation part. A jacket space containing a liquid energy-carrying medium is formed between the furnace body and the oil tank body. The liquid energy carrier circulates heat to the combustion part and the carbonization part. In this solution, the liquid energy-carrying medium has strong heat conduction and heat storage capabilities, high boiling point, and is environmentally friendly. Therefore, the above-mentioned liquid energy-carrying medium is heated and combined with high-temperature flue gas to provide the high-temperature environment required for the carbonization part; high-temperature flue gas and high-temperature steam Provide the high-temperature environment and activation conditions required for the activation part; the liquid energy-carrying medium is forced to circulate in the combustion part and the carbonization part to connect them as one, so that it can absorb the heat of the combustion part and provide a high-temperature environment for the carbonization part, and can also be connected with the combustion part. The excess heat released by the carbonization part forms a balance, allowing the excess heat to return to the combustion part to provide heat for the combustion part.
The combustion part, carbonization part and activation part are each provided with a chain row for transporting corresponding materials. The chain row allows the corresponding materials to react directly and continuously quickly and be heated evenly.
Preferably, the activation part is provided below the carbonization part.
Preferably, the water vapor pipe is spirally provided on the inner wall of the furnace body or/and is spirally wound around the outer wall of the furnace body inside the jacket space. Wrapping the water vapor pipe spirally around the outer or inner wall of the furnace body is beneficial to the heating of the water vapor pipe. It can absorb the heat in the furnace body and the heat of the liquid energy-carrying medium, improve the heating efficiency, and cause the water in the water vapor pipe to form a high temperature. steam.
Preferably, the boiling point of the liquid energy-carrying medium is 340°C.
The activation part is provided with a steam distribution device for uniformly ejecting high-temperature steam, and the steam distribution device is connected to the outlet end of the water vapor pipe. The steam distribution device sprays the material on the chain row correspondingly, making the activation even and complete.
The equipment also includes a flue gas treatment tower. An induced draft fan is installed at the upper inlet of the flue gas treatment tower. The induced draft fan communicates with the activation part and the carbonization part. The induced draft fan sends the flue gas to the flue gas treatment tower for treatment and emission standards. The combustible components such as tar and volatile matter are recovered by the combustible material recovery device and enter the combustion part for combustion, recovering heat and reducing losses.
Preferably, the carbonization part is provided with a discharge port for discharging material to the outside. The carbonized material carbonized by the carbonization part can directly enter the activation part for activation, or can be discharged from the discharge port, so that the equipment can produce carbonized material while producing activated carbon, adapting to the needs of different manufacturers.
