Disclosure of Invention
In order to solve the problems, the invention provides a continuous carbonization system which can carbonize biomass with water content of more than 30% without adding drying fuel.
The utility model provides a continuous carbomorphism system of living beings, includes drying kiln, gasifier, carbomorphism kiln, drying kiln does carbonization kiln provides the living beings after the drying, the gasifier does carbonization kiln provides preheating combustible gas, drying kiln outside is furnished with the combustion chamber who preheats for it, carbomorphism kiln top passes through the steam pipeline intercommunication drying kiln with the combustion chamber, carbomorphism kiln top pass through gas clean system intercommunication extremely carbonization kiln furnace end, drying kiln with be equipped with dustless conveying system between the carbonization kiln.
Furthermore, the combustion chamber is provided with an auxiliary combustion chamber, and the top of the carbonization kiln is communicated with the auxiliary combustion chamber through a gas pipeline.
Further, the gas purification system comprises a primary coarse purification tower, a secondary coarse purification tower, a cooling tower, a gas-water separation tower, a separation tank and a purification tower in sequence.
Further, dustless conveying system mainly includes high-power fan, prestores the storage bucket, once whirlwind dust remover, secondary whirlwind dust remover, auger conveyer, the dry kiln discharge gate intercommunication the storage bucket prestores, prestore the storage bucket and connect high-power fan, the material is sent into once whirlwind dust remover feed inlet by the malleation, once whirlwind dust remover discharge gate is connected secondary whirlwind dust remover feed inlet, the secondary whirlwind dust remover discharge gate is connected through the feed cylinder auger conveyer, auger conveyer discharge end inserts the carbomorphism kiln feed inlet.
Further, high-power fan sets up in the amortization room, the amortization room is equipped with air intake, air outlet, supplies the door of operation personnel business turn over, the top and the lower part in amortization room all are equipped with the muffler.
The invention has the beneficial effects that: the biomass with the water content of more than 30% can be carbonized without adding other drying fuels, and the material drying can be realized, other fuels are saved, and the self-circulation of carbonization energy is realized; not only greatly facilitates the biomass carbonization operation, but also facilitates the industrialization, and the generated economic benefit is considerable.
Example 1
A biomass continuous carbonization system, as shown in fig. 1 and 2, comprising a drying kiln 1, a gasification furnace (not shown in the figure) and a carbonization kiln 2, wherein the drying kiln 1 provides dried biomass for the carbonization kiln 2, the gasification furnace provides preheated combustible gas for the carbonization kiln 2, a combustion chamber 3 for preheating the drying kiln 1 is arranged outside the drying kiln 1, and the top of the carbonization kiln 2 is communicated with the drying kiln 1 and the combustion chamber 3 through a hot gas pipeline 4; a dust-free conveying system is arranged between the drying kiln 1 and the carbonization kiln 2.
During carbonization operation, firstly, combustible materials such as wood and the like are ignited in a combustion chamber, a drying kiln is preheated, and when the temperature of the drying kiln reaches 100 ℃, the drying kiln starts to be charged; meanwhile, dry biomass (such as rice husks and the like) is ignited in the gasification furnace, the generated combustible gas enters the carbonization kiln for combustion, when the temperature in the carbonization kiln reaches 600 ℃, the drying kiln also starts to produce biomass with the water content of below 15%, and the biomass is conveyed to a feeding hole of the carbonization kiln through a dust-free conveying system.
The top of the carbonization kiln 2 sequentially passes through a fuel gas purification system consisting of a primary coarse purification tower, a secondary coarse purification tower, a cooling tower, a gas-water separation tower, a separation tank and a purification tower, and finally flows back to the head of the carbonization kiln to be ignited, and the gasification furnace is closed after normal combustion. Here, the connection relationship between the devices of the gas purification system is common knowledge in the art, and will not be described in detail herein.
Then, opening a hot gas pipeline valve to enable heat generated by the carbonization kiln to enter the drying kiln through a hot gas pipeline; then, the combustible gas that the carbomorphism kiln produced still can have a large amount of residuals except supplying self burning, consequently, combustion chamber 3 is furnished with auxiliary combustion chamber 6, 2 tops of carbomorphism kiln are passed through gas pipeline 7 intercommunication auxiliary combustion chamber 6 opens gas pipeline valve, lets combustible gas get into the burning of auxiliary combustion chamber, treats under backward flow steam and the gas combined action, and when the temperature of drying kiln reached the stoving demand, main combustion chamber stop work.
To this end, a complete biomass continuous carbonization system is formed.
The biomass produced from the drying kiln is prepared by mixing the material and water vapor, and the water vapor needs to be discharged, and the dried material is sent into the carbonization kiln.
In this embodiment, the dust-free conveying system mainly includes a high-power fan (not shown in the figure), a pre-storage bin 501, a primary cyclone 502, a secondary cyclone 503 and an auger conveyor 504, the discharge port of the drying kiln 1 is communicated with the pre-storage bin 501, the pre-storage bin 501 is connected with the high-power fan, materials are sent into the feed port of the primary cyclone 502 by positive pressure, the discharge port of the primary cyclone 502 is connected with the feed port of the secondary cyclone 503, the discharge port of the secondary cyclone 503 is connected with the auger conveyor 504 through a discharge barrel 505, and the discharge end of the auger conveyor 504 is connected with the feed port of the carbonization kiln 2.
The high-power fan is used for sucking materials from a discharge hole of the drying kiln into a pre-storage material barrel through negative pressure and pressing the materials to a feed hole of the primary cyclone dust collector through positive pressure so as to realize primary material-steam separation; after primary material steam separation, the material enters a secondary cyclone dust collector for secondary material steam separation, and then is conveyed into a carbonization kiln through a screw conveyer.
The high-power fan is used here, and very big noise can be produced certainly, and in this embodiment, the high-power fan sets up in the amortization room, and the storage bucket discharge gate that prestores that is located the amortization outside the amortization room accesss to high-power fan, communicates to primary cyclone from the amortization roof portion. The amortization room is equipped with air intake, air outlet, supplies the door of operation personnel business turn over, the top and the lower part in amortization room all are equipped with the muffler. The wall body of the sound attenuation room is a sound insulation cotton sandwich foam brick wall.
Through the technical scheme, the problems of dust and noise pollution in material conveying from the drying kiln to the carbonization kiln are thoroughly solved.
The drying kiln, the gasification furnace and the carbonization kiln all adopt the existing equipment, and the specific structure is not the key point for protection of the invention.
It is to be understood that the described embodiments are merely a few embodiments of the invention, and not all embodiments. All other embodiments, which can be derived by one of ordinary skill in the art and related arts based on the embodiments of the present invention without any creative effort, shall fall within the protection scope of the present invention.