CN213475873U - Special dry distillation device for pulverized coal and straw - Google Patents
Special dry distillation device for pulverized coal and straw Download PDFInfo
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- CN213475873U CN213475873U CN202022108576.3U CN202022108576U CN213475873U CN 213475873 U CN213475873 U CN 213475873U CN 202022108576 U CN202022108576 U CN 202022108576U CN 213475873 U CN213475873 U CN 213475873U
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Abstract
The utility model discloses a special dry distillation device of buggy and straw, include: the system comprises a rotary dry distillation furnace, a spiral feeder, a hopper, a furnace end settling chamber, a furnace end combustion chamber, a furnace tail settling chamber, a heat-conducting oil cooler, an electric tar precipitator, a cooling scrubbing tower and an induced draft fan; the feed end of the rotary retort is sequentially connected with a spiral feeder and a hopper through pipelines; the gas inlet end of the rotary gas retort is sequentially connected with the furnace end settling chamber and the furnace end combustion chamber through pipelines; the gas outlet end of the rotary gas retort is sequentially connected with a furnace tail settling chamber, a heat-conducting oil cooler, an electric tar precipitator, a cooling gas washing tower, a draught fan and a furnace end combustion chamber through pipelines. The utility model discloses dry distillation device can become clean energy with weak viscosity buggy and living beings straw processing to improve its resource utilization, added value utilization and environmental protection level, reduced the degree of dependence of china to foreign oil, natural gas import.
Description
Technical Field
The utility model relates to a utilization technical field, more specifically the special dry distillation device of buggy and straw that says so relates to.
Background
China is a big coal country, has rich coal resources, high aggregation degree and complete varieties, particularly Jurassic weak-viscosity coal produced by Nemeng, northern Shaanxi and Shanxi provinces equally, is inflammable, has high volatile content, low sulfur, low phosphorus and low ash content, and is high-quality chemical and power coal. The main coal processing method at present is that the coal blocks and coal particles with the size of more than 10mm which are artificially mined are subjected to low-temperature dry distillation to obtain raw coal and by-products of low-temperature tar and low-temperature coal gas, wherein the raw coal and the coal gas are used for generating electricity and producing metallurgical products such as metal magnesium, metal calcium and the like; the tar is used for ignition of steel heating furnaces, power plant boilers and cement plants, and the new application is to produce fuel oil by adopting a catalytic hydrogenation technology. However, in the production process of coal dry distillation, pulverized coal with the particle size of less than 10mm is not utilized, can only be sold at low cost, is used for direct coal-fired industries such as power generation, cement and boilers, and is subjected to burning prohibition and banning treatment due to serious pollution.
Meanwhile, China is a traditional agricultural large country, according to the estimation of experts, cultivated land in China is 18 hundred million mu, crop straws are more than 10 hundred million tons every year, wood processing, forest area updating, fruit tree updating and the like are included, the estimated fiber biomass and agricultural crop straws are about 15 hundred million tons, and the yield is huge. Traditional Chinese rural areas utilize crop straws as firewood for life, but the crop straws are replaced by new energy technologies such as wind power, photovoltaic power and the like due to environmental pollution. In order to prevent pollution caused by burning of crop straws, China repeatedly sends out various burning-forbidden crop strawsHowever, because straw power generation is affected by the transportation radius and the straw processing cost, crop diseases and insect pests cannot be eliminated, rainwater in northern China is less, farmland water after straw returning to the field is less, germination rate is low, straw pulp papermaking pollution is serious, and other factors affect the biomass resources, and the policy of straw burning prohibition cannot be implemented well. In rural areas, although the government strictly prohibits straw burning, the phenomenon of burning in the rural areas is still serious, a large amount of straws are piled in front of and behind houses, at the sides of highways and ditches, fire disasters are caused by burning in the rural areas, trees which are burnt for many years and are arduous to carry and bake are also burnt together, and after the straws are piled for a long time, the straws are influenced by light and bacteria decomposition, and finally are slowly decomposed to release heat, and CO is generated2Also, pollution to the nature is caused.
Moreover, the weakly caking coal originally belongs to a biomass substance composed of cellulose, hemicellulose and lignin like crop straws, and is characterized in that coal is deteriorated under the influence of high temperature and high pressure under the crust, the deterioration degree is deep, organic matters are seriously carbonized into anthracite, the deterioration degree is moderately weakly caking coal or small bituminous coal (also influenced by precursor variety), coking coal is generated for forming biomass variety, the deterioration time is less than 10000 years, and the coal formed by dry distillation, dehydration and dehydrogenation deterioration is lignite.
Aiming at the various conditions, the weakly viscous coal powder and the biomass straws with the thickness of less than 10mm are in low-value utilization and non-value incineration at present, and the processing of the weakly viscous coal powder and the biomass straws into clean energy is an effective way for improving the resource utilization, the additional value utilization and the environmental protection level of the coal powder and the biomass straws, and is an effective measure for reducing the dependence on foreign oil and natural gas imports in China.
Therefore, how to realize the efficient utilization of the weakly-viscous coal powder with the particle size of less than 10mm and the resource utilization of the biomass straws is a problem to be solved urgently by the technical personnel in the field.
Disclosure of Invention
In view of this, the utility model aims at providing a special dry distillation device of buggy and straw can become clean energy with weak viscidity buggy and living beings straw processing to improve its utilization as a resource, added value utilization and environmental protection level, reduced the degree of dependence of china to oil, natural gas import abroad.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a special dry distillation device for pulverized coal and straws comprises: the system comprises a rotary dry distillation furnace, a spiral feeder, a hopper, a furnace end settling chamber, a furnace end combustion chamber, a furnace tail settling chamber, a heat-conducting oil cooler, an electric tar precipitator, a cooling scrubbing tower and an induced draft fan; wherein, the feed end of the rotary retort is sequentially connected with a spiral feeder and a hopper through pipelines; the gas inlet end of the rotary gas retort is sequentially connected with the furnace end settling chamber and the furnace end combustion chamber through pipelines; the gas outlet end of the rotary gas retort is sequentially connected with a furnace tail settling chamber, a heat-conducting oil cooler, an electric tar precipitator, a cooling gas washing tower, a draught fan and a furnace end combustion chamber through pipelines.
The beneficial effects of the utility model reside in that, pyrolysis dry distillation can take place for weak viscosity buggy and living beings straw heating under the anaerobic condition, produces the dry distillation gas, wherein contains the hydrocarbons of different molecular weights, and these hydrocarbons can present gaseous state, liquid and solid-state under different temperatures, and what and the temperature situation of carbon content and hydrogen content decide its form in the hydrocarbon molecule. The tar and coke oven gas are obtained by cracking and dry distillation at normal temperature and normal pressure, and different amounts of tar can be generated under different temperature and pressure due to different coal types or biomass. Liquid hydrocarbons generated by weakly viscous coal powder are generally called low-temperature tar, liquid hydrocarbons generated by biomass straws are generally called wood tar, the two types of tar can be prepared into clean energy or other petrochemical products with higher added values through further processing, and meanwhile, the two types of tar are products which have the greatest influence on the environment in the industry, so that the recycling of the tar must be paid attention to.
Through the utility model discloses rotation dry distillation device and system and operation technology, make buggy or straw through necessary technological means such as suitable temperature and oxidation concentration in the rotation dry distillation stove, coal gas in the dry distillation gas, tar cools down through heat conduction oil cooler, adopt the tar in the electrical tar precipitator recovery dry distillation gas, smoke and dust and further cooling in the dry distillation gas are detached through cooling gas washing tower, carry through the draught fan and utilize or handle workshop section processing and utilize, wood vinegar in the dry distillation gas of straw or other biomass materials uses the lime cream in cooling gas washing tower and makes calcium acetate, and then the processing becomes acetone, in order to reach the high added value utilization that the harm was turned into the benefit, benefit the country and benefit people.
Further, the furnace end combustion chamber comprises a combustion chamber, a combustion nozzle, a wind sleeve, an air inlet pipe and a flue gas pipe; the air inlet end of the combustion chamber is connected with an induced draft fan through a burner nozzle, an air sleeve and an air inlet pipe in sequence; the gas outlet end of the combustion chamber is connected with the furnace end settling chamber through a flue gas pipe; furthermore, the furnace end combustion chamber also comprises a blow-off valve, a furnace head cover and a cut-off valve; the bleeding valve is arranged at the first gas outlet end of the flue gas pipe; the furnace end cover is arranged at the second air outlet end of the flue gas pipe and is connected with the furnace end settling chamber; the stop valve is arranged between the air outlet end of the combustion chamber and the second air outlet end of the flue gas pipe.
Adopt above-mentioned further beneficial effect to lie in, the utility model discloses the effect of furnace end combustion chamber is that the burning produces high temperature hot flue gas, then gets into the rotation gas retort through the inlet end of furnace end settling chamber and rotation gas retort, makes buggy and straw decompose under isolated air condition to generate dry distillation gas, vapour and solid residue.
Furthermore, the special dry distillation device for the pulverized coal and the straws also comprises an oil storage tank, and the oil storage tank is respectively connected with the heat conduction oil cooler and the electric tar precipitator through pipelines; furthermore, the device also comprises an oil delivery pump which is connected with the oil storage tank through a pipeline.
The oil storage tank and the oil transfer pump are main devices in the recovery process, wherein the oil storage tank is a storage container for recovered products, and the oil transfer pump is a power device for absorbing the flowing of cooling liquid in the recovery process.
Further, the special dry distillation device for the pulverized coal and the straws also comprises a cooling circulating water tank, wherein the cooling circulating water tank is respectively connected with the heat-conducting oil cooler and the cooling scrubbing tower through pipelines; furthermore, the cooling circulation pump is further included and is respectively connected with the cooling circulation water pool and the cooling scrubbing tower through pipelines.
The method has the further beneficial effects that after the temperature is reduced, the dry distillation gas with high carbon content is in a liquid state, the dry distillation gas with low carbon content is still in a gas state, at normal temperature, the liquid state is an oil product, the gas state is gaseous hydrocarbon or coal gas, the tar and the coal gas are obtained by collection, and the separation means is water cooling, wherein the cooling circulating water tank is a cooling water storage container, and the cooling circulating pump is a refrigerant conveying device for promoting the contact process of a cooling substance and a heat source in the cooling process.
Known through foretell technical scheme, compare with prior art, the beneficial effect of the utility model is as follows:
1. the utility model discloses utilize weak slime coal buggy and through the rotten principle of crops straw class living beings heating dry distillation dehydration dehydrogenation change that minks, utilize the same rotation internal heating mode, the higher low temperature tar of added value and low temperature coke oven gas dry distillation catalytic hydrogenation production high-end fuel oil in the weak slime buggy, chemical products, or as high-quality clean energy production magnesium metal, metal calcium, accessory substance coke breeze (the volatile component is below 1-2%, pollute lighter) is used as power plant fuel, the ancient technological coal slurry of moral soil is prepared, Holland shell brand fine coal gasification technology produces synthetic ammonia, organic synthetic gas or be used for making the moulded coal and supply the heating of cooking in remote rural area.
2. To living beings such as crop straw, the utility model discloses adopt this device and technology to carry out low temperature dry distillation equally, tar adopts the electric tar of catching to collect in the dry distillation gas, pyroligneous acid adopts calcium hydroxide to neutralize, and the calcium acetate of formation is used for making acetic acid or acetone again, and the charcoal powder that the dry distillation obtained can be used to all uses of active carbon and weak viscosity burnt powder.
3. The utility model can also be used for producing high-quality hydrocarbons by adopting pure oxygen or oxygen-enriched nitrogen-free heating, and develops towards the chemical industry of petroleum and natural gas.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic structural view of a special dry distillation device for pulverized coal and straw provided by the present invention;
fig. 2 is a schematic structural diagram of a furnace end combustion chamber provided by the present invention.
The system comprises a 1-rotary gas retort, a 2-spiral feeder, a 3-hopper, a 4-furnace end settling chamber, a 5-furnace end combustion chamber, a 6-furnace tail settling chamber, a 7-heat conduction oil cooler, an 8-electric tar precipitator, a 9-cooling gas washing tower, a 10-induced draft fan, an 11-oil storage tank, a 12-oil transfer pump, a 13-cooling circulating water tank, a 14-cooling circulating pump, a 41-furnace end cover, a 51-combustion chamber, a 52-combustion nozzle, a 53-air sleeve, a 54-air inlet pipe, a 55-flue gas pipe, a 56-blow-off valve and a 57-cut-off valve.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
The embodiment of the utility model discloses special dry distillation device of buggy and straw, as shown in figure 1, include: the system comprises a rotary dry distillation furnace 1, a spiral feeder 2, a hopper 3, a furnace end settling chamber 4, a furnace end combustion chamber 5, a furnace tail settling chamber 6, a heat-conducting oil cooler 7, an electric tar precipitator 8, a cooling gas washing tower 9 and an induced draft fan 10; wherein, the feed end of the rotary retort 1 is sequentially connected with a spiral feeder 2 and a hopper 3 through pipelines; the air inlet end of the rotary gas retort 1 is sequentially connected with a furnace end settling chamber 4 and a furnace end combustion chamber 5 through pipelines; the gas outlet end of the rotary gas retort 1 is sequentially connected with a furnace tail settling chamber 6, a heat-conducting oil cooler 7, an electric tar precipitator 8, a cooling scrubbing tower 9, an induced draft fan 10 and a furnace end combustion chamber 5 through pipelines.
Through the utility model discloses rotation dry distillation device and system and operation technology, make buggy or straw through necessary technological means such as suitable temperature and oxygen concentration in rotation gas retort 1, coal gas in the dry distillation gas, tar cools down through heat conduction oil cooler 7, adopt the tar in the dry distillation gas of electric tar precipitator 8 recovery, smoke and dust and further cooling in the dry distillation gas are detached through cooling gas washing tower 9, carry through draught fan 10 and utilize or handle workshop section processing and utilize, pyroligneous acid in the dry distillation gas of straw or other biomass materials uses lime cream in cooling gas washing tower 9 and makes calcium acetate, and then processing into acetone, in order to reach the high added value utilization that the harm is profitable, benefit the country and the people.
In one embodiment, as shown in fig. 2, the burner combustion chamber 5 includes a combustion chamber 51, a burner tip 52, a windpipe 53, an air inlet pipe 54, and a flue gas pipe 55; wherein, the air inlet end of the combustion chamber 51 is connected with the induced draft fan 10 through a burner tip 52, an air sleeve 53 and an air inlet pipe 54 in sequence; the outlet end of the combustion chamber 51 is connected with the burner settling chamber 4 through a flue gas pipe 55. In another embodiment, the burner combustion chamber 5 further comprises a blow-off valve 56, a burner cap 41 and a shut-off valve 57; the bleeding valve 56 is arranged at the first gas outlet end of the flue gas pipe 55; the furnace head cover 41 is arranged at the second air outlet end of the flue gas pipe 55 and is connected with the furnace head settling chamber 4; the shut-off valve 57 is disposed between the outlet end of the combustion chamber 51 and the second outlet end of the flue gas pipe 55. The utility model discloses furnace end combustion chamber 5's effect is that the burning produces high temperature hot flue gas, then gets into rotation gas retort 1 through furnace end settling chamber 4 and rotation gas retort 1's inlet end, makes buggy and straw decompose under the isolated air condition to generate dry distillation gas, steam and solid residue.
In one embodiment, the system further comprises an oil sump 11, and the oil sump 11 is respectively connected with the conduction oil cooler 7 and the electrical tar precipitator 8 through pipelines. In another embodiment, the oil pump 12 is further included, and the oil pump 12 is connected to the oil sump 11 through a pipe. The oil sump 11 and the oil transfer pump 12 are main devices of the recycling process, wherein the oil sump is a storage container of the recycled product 11, and the oil transfer pump 12 is a power device for absorbing the flow of the cooling liquid during the recycling process.
In one embodiment, the cooling circulation water tank 13 is further included, and the cooling circulation water tank 13 is respectively connected with the conduction oil cooler 7 and the cooling scrubbing tower 9 through pipelines. In another embodiment, a cooling circulation pump 14 is further included, and the cooling circulation pump 14 is respectively connected with the cooling circulation water tank 13 and the cooling scrubbing tower 9 through pipelines. The cooling circulation water tank 13 is a cooling water storage container, and the cooling circulation pump 14 is a device for transferring a cooling medium for promoting a contact process between a cooling material and a heat source during a cooling process.
The use method of the special dry distillation device for the coal dust and the straw (the weakly caking coal dust) specifically comprises the following steps:
(1) adding the weakly viscous coal powder with the particle size of less than or equal to 10mm into a hopper 3, and then feeding the weakly viscous coal powder into a rotary retort 1 through a spiral feeder 2 and the feeding end of the rotary retort 1 to obtain a raw material to be subjected to dry distillation;
(2) the furnace end combustion chamber 5 is ignited, and the generated high-temperature hot flue gas enters the rotary retort 1 through the furnace end settling chamber 4 and the gas inlet end of the rotary retort 1;
(3) starting the rotary retort 1, enabling the raw material to be subjected to dry distillation to move towards the furnace end settling chamber 4 in a spiral line manner under the action of 3-4% gradient of the rotary retort and rotation of the cylinder, and gradually decomposing from the furnace end to the tail of the dry distillation furnace under the action of high-temperature hot flue gas to generate high-quality dry distillation gas;
(4) the dry distillation gas enters a furnace tail settling chamber 6 through an air outlet end of a rotary dry distillation furnace 1 and a pipeline, the smoke dust in the dry distillation gas is settled and collected under the action of gravity, and partial steam in the dry distillation gas is condensed and removed under the action of low temperature to obtain the smoke-free dry distillation gas at 380 ℃;
(5) the smoke-removing dry distillation gas enters a heat-conducting oil cooler 7 through a pipeline, and part of heat is recovered to obtain low-temperature dry distillation gas;
(6) the low-temperature dry distillation gas enters an electric tar precipitator 8 through a pipeline and is recovered with more than 95 percent of tar to obtain deoiled dry distillation gas;
(7) the deoiled dry distillation gas enters a cooling gas washing tower 9 through a pipeline, and the residual smoke, water vapor and tar are further recovered to obtain pure dry distillation gas at 25 ℃;
(8) pure dry distillation gas enters a centrifugal induced draft fan 10 with the inlet pressure of 0.8KPa through a pipeline (a circulation loop is started when the pressure is lower than 0.3 KPa), and is compressed to 4.5KPa and then is sent to a gas frame for collection or other purposes, wherein a part of the pure dry distillation gas is continuously compressed to 10KPa and enters a furnace end combustion chamber 5 through a pipeline for dry distillation (the outlet of the centrifugal induced draft fan 10 is pressurized to 5.0KPa, and a rotary retort 1 heating permanent fuel gas pipeline is led out for heating the rotary retort 1).
The use method of the special dry distillation device for the coal powder and the straws (biomass straws) specifically comprises the following steps:
(1) adding biomass straws which are naturally dried and have the water content of less than or equal to 15% and the particle size of less than or equal to 10mm into a hopper 3, and then feeding the biomass straws into a rotary retort 1 through a spiral feeder 2 and a feeding end of the rotary retort 1 to obtain a raw material to be subjected to dry distillation;
(2) the furnace end combustion chamber 5 is ignited, and the generated high-temperature hot flue gas enters the rotary retort 1 through the furnace end settling chamber 4 and the gas inlet end of the rotary retort 1;
(3) starting the rotary retort 1, enabling the raw material to be subjected to dry distillation to move towards the furnace end settling chamber 4 in a spiral line manner under the action of 3-4% gradient of the rotary retort and rotation of the cylinder, and gradually decomposing from the furnace end to the tail of the dry distillation furnace under the action of high-temperature hot flue gas to generate high-quality dry distillation gas;
(4) the dry distillation gas enters a furnace tail settling chamber 6 through an air outlet end of a rotary dry distillation furnace 1 and a pipeline, the smoke in the dry distillation gas is settled and collected under the action of gravity, and partial water vapor in the dry distillation gas is condensed and removed under the action of low temperature to obtain the smoke-free dry distillation gas at the temperature of 400 ℃;
(5) the smoke-removing dry distillation gas enters a heat-conducting oil cooler 7 through a pipeline, and part of heat is recovered to obtain low-temperature dry distillation gas;
(6) the low-temperature dry distillation gas enters an electric tar precipitator 8 through a pipeline and is recovered with more than 95 percent of tar to obtain deoiled dry distillation gas;
(7) the deoiled dry distillation gas enters a cooling and gas washing tower 9 through a pipeline, the deoiled dry distillation gas is cooled to 20-25 ℃ due to cooling and washing of cooling water at the temperature of 20-25 ℃, smoke dust and a small amount of tar are collected, and pyroligneous acid is neutralized by calcium hydroxide in washing water to obtain pure dry distillation gas at the temperature of 30 ℃;
(8) the pure dry distillation gas enters a centrifugal induced draft fan 10 with the inlet pressure of 1.0KPa through a pipeline (the circulation loop is opened when the pressure is less than 0.8 KPa), and is sent into a gas frame for collection or other application places after being compressed to 4.8KPa, wherein, part of the pure dry distillation gas is used for heating the rotary dry distillation furnace 1 after the circulation loop is opened.
In the above using method, the specific operation of igniting the burner combustion chamber 5 in the step (2) is as follows: the compressed pure dry distillation gas is continuously compressed to 10KPa by a high-pressure centrifugal fan, then is added into an air inlet pipe 54, the air is pressurized to 10KPa by a Roots fan, then is added into a wind sleeve 53, the pure dry distillation gas and the air are mixed in the wind sleeve 53 (heat-resistant stainless steel, which is internally provided with refractory materials capable of resisting 1600 ℃), then are combusted at the outlet of a combustion nozzle 52 and enter a combustion chamber 51 to be uniformly mixed, and when O in the generated high-temperature flue gas is2When the content is stabilized at 6%, the bleeding valve 56 is closed, and the cut-off valve 57 is opened, so that the high-temperature flue gas enters the carbonization furnace through the flue gas pipe 55, the furnace end cover 41 and the furnace end settling chamber 4, and the raw material to be carbonized is heated and pyrolyzed.
To sum up, compare with prior art, the beneficial effects of the utility model are as follows:
1. the utility model discloses utilize weak slime coal buggy and through the rotten principle of crops straw class living beings heating dry distillation dehydration dehydrogenation change that minks, utilize the same rotation internal heating mode, the higher low temperature tar of added value and low temperature coke oven gas dry distillation catalytic hydrogenation production high-end fuel oil in the weak slime buggy, chemical products, or as high-quality clean energy production magnesium metal, metal calcium, accessory substance coke breeze (the volatile component is below 1-2%, pollute lighter) is used as power plant fuel, the ancient technological coal slurry of moral soil is prepared, Holland shell brand fine coal gasification technology produces synthetic ammonia, organic synthetic gas or be used for making the moulded coal and supply the heating of cooking in remote rural area.
2. To living beings such as crop straw, the utility model discloses adopt this device and technology to carry out low temperature dry distillation equally, tar adopts the electric tar of catching to collect in the dry distillation gas, pyroligneous acid adopts calcium hydroxide to neutralize, and the calcium acetate of formation is used for making acetic acid or acetone again, and the charcoal powder that the dry distillation obtained can be used to all uses of active carbon and weak viscosity burnt powder.
3. The utility model can also be used for producing high-quality hydrocarbons by adopting pure oxygen or oxygen-enriched nitrogen-free heating, and develops towards the chemical industry of petroleum and natural gas.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.
Claims (7)
1. A special dry distillation device for pulverized coal and straws is characterized by comprising: the system comprises a rotary dry distillation furnace, a spiral feeder, a hopper, a furnace end settling chamber, a furnace end combustion chamber, a furnace tail settling chamber, a heat-conducting oil cooler, an electric tar precipitator, a cooling scrubbing tower and an induced draft fan;
the feed end of the rotary retort is sequentially connected with the spiral feeder and the hopper through pipelines;
the gas inlet end of the rotary retort is sequentially connected with the furnace end settling chamber and the furnace end combustion chamber through a pipeline;
and the gas outlet end of the rotary gas retort is sequentially connected with the furnace tail settling chamber, the heat conduction oil cooler, the electric tar precipitator, the cooling scrubbing tower, the induced draft fan and the furnace end combustion chamber through pipelines.
2. The special dry distillation device for the coal powder and the straws as claimed in claim 1, wherein the furnace end combustion chamber comprises a combustion chamber, a combustion nozzle, an air sleeve, an air inlet pipe and a flue gas pipe;
the air inlet end of the combustion chamber is connected with the induced draft fan sequentially through the combustion nozzle, the air sleeve and the air inlet pipe;
and the air outlet end of the combustion chamber is connected with the furnace end settling chamber through the flue gas pipe.
3. The special dry distillation device for the coal dust and the straws as claimed in claim 2, wherein the furnace end combustion chamber further comprises a blow-off valve, a furnace head cover and a cut-off valve;
the bleeding valve is arranged at the first gas outlet end of the flue gas pipe;
the furnace end cover is arranged at the second air outlet end of the flue gas pipe and is connected with the furnace end settling chamber;
the block valve is arranged between the air outlet end of the combustion chamber and the second air outlet end of the flue gas pipe.
4. The special dry distillation device for the coal dust and the straws as claimed in claim 1, further comprising an oil storage tank, wherein the oil storage tank is respectively connected with the heat conduction oil cooler and the electric tar precipitator through pipelines.
5. The special dry distillation device for the coal dust and the straws as claimed in claim 4, further comprising an oil transfer pump, wherein the oil transfer pump is connected with the oil storage tank through a pipeline.
6. The special dry distillation device for the coal dust and the straws as claimed in claim 1, further comprising a cooling circulation water tank, wherein the cooling circulation water tank is respectively connected with the heat conduction oil cooler and the cooling scrubbing tower through pipelines.
7. The special dry distillation device for the coal dust and the straws as claimed in claim 6, further comprising a cooling circulation pump, wherein the cooling circulation pump is respectively connected with the cooling circulation water tank and the cooling scrubbing tower through pipelines.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022108576.3U CN213475873U (en) | 2020-09-23 | 2020-09-23 | Special dry distillation device for pulverized coal and straw |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022108576.3U CN213475873U (en) | 2020-09-23 | 2020-09-23 | Special dry distillation device for pulverized coal and straw |
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