CN104087329A - Linkage spiral return stroke type oil sand dry distillation system - Google Patents

Linkage spiral return stroke type oil sand dry distillation system Download PDF

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CN104087329A
CN104087329A CN 201410357909 CN201410357909A CN104087329A CN 104087329 A CN104087329 A CN 104087329A CN 201410357909 CN201410357909 CN 201410357909 CN 201410357909 A CN201410357909 A CN 201410357909A CN 104087329 A CN104087329 A CN 104087329A
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pyrolysis
hot air
unit
screw conveyor
tube
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CN 201410357909
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CN104087329B (en )
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樊金鑫
吴小平
陈洪霞
孙文龙
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樊金鑫
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Abstract

The invention relates to a linkage spiral return stroke type oil sand dry distillation system which comprises a raw material drying unit, a pyrolysis dry distillation unit, a heat storing rotational flow hot air unit, a condensation separating unit and a tailing cooling unit and is characterized in that a linkage spiral three-return stroke dry distillation device which comprises a heating box and a plurality of groups of three-return stroke screw conveyors arranged in the heating box is used as the pyrolysis dry distillation unit; each three-return stroke screw conveyor comprises a preheating screw conveyor, a pyrolysis screw conveyor and a dry distillation screw conveyor which are communicated end to end and vertically arranged from top to bottom, wherein hot air guide clapboards are respectively arranged between the preheating screw conveyor and the pyrolysis screw conveyor and between the pyrolysis crew conveyor and the dry distillation screw conveyor; an upper hot air heat transfer channel, an intermediate hot air heat transfer channel and a lower hot air heat transfer channel which are communicated end to end are arranged in the heating box; an air inlet and an air outlet are respectively formed in the upper surface and lower surface of the shell of the heating box, and high-temperature hot air of a heating meson is provided by the heat storing rotational flow hot air unit. The system is reliable in operation, and can be used for stably and thoroughly separating gases, solids and liquids.

Description

联动螺旋回程式油砂干馏工艺系统 Linkage flyback coil system retorting oil sands

技术领域 FIELD

[0001] 本发明涉及物料干馏综合利用技术,特别是一种联动螺旋回程式油砂干馏工艺系统。 [0001] The present invention relates to the pyrolysis of material utilization technologies, more particularly to a flyback coil system linkage retorting oil sands.

背景技术 Background technique

[0002] 随着全球能源市场不断增长,特别是石油产品的市场需求巨增,开发石油替代品新型能源技术产品已成为世界各国开发研究的主要课题。 [0002] With the growing global energy market, especially the market demand for petroleum products giant, to develop new energy alternatives to oil technology products has become a major research topic developed countries in the world. 目前国内、外油砂抽提技术主要有热碱水法、溶剂萃取法、热解干馏法。 Domestic and foreign oil sands extraction technologies include hot alkali, solvent extraction, pyrolysis dry distillation. 前两种工艺法因受技术本身使用局限性而少用于工业化生产。 The first two methods due to process limitations of the technology itself and less used for industrial production. 世界发达国家均对油砂干馏技术有不同程度的开发研究,美国、加拿大、巴西、德国、日本等国家均有各自代表性的工艺技术,多数处在工业试验初期,工业规模化应用还不成熟。 The world's developed countries have had varying degrees of research and development of oil sand pyrolysis technology, the United States, Canada, Brazil, Germany, Japan and other countries have their own representative technology, most in the early industrial test, industrial-scale application is not ripe .

[0003] 国内现有油砂抽提工艺技术有以下几种形式:抚顺式干馏炉技术工艺、气燃式干馏炉技术工艺、大工新法干馏技术工艺、上海博生干馏技术工艺、吉林全循环干馏技术工艺和回转外热干馏技术工艺。 [0003] Existing domestic oil sands extraction technology has the following form: Fushun retort art process, the air fired retort process technology, a large New method for the pyrolysis process technology, process technology Haibo raw pyrolysis, carbonization full cycle Jilin art processes and rotary external heating pyrolysis techniques. 上述干馏技术工艺在油页岩干馏行业应用较成熟的为抚顺式干馏炉技术工艺。 Retorting oil shale industry applications mature Fushun retort pyrolysis technique art processes above process. 其它工艺方法在油页岩干馏分离行业应用较少,在油砂干馏分离行业应用均处在工业性试验阶段。 Other application process for oil shale retorting less separation industry, the separation of the pyrolysis oil sands industry applications are at the industrial trials. 而现行的油砂干馏分离技术工艺应用存在的问题如下:1、采用直燃换热干馏工艺存在炉内氧化燃烧过程难以控制、原料油气分离回收率较低、工艺过程复杂、能耗高、污染重且设备单台产能低的缺陷;2、采用外热回转窑干馏技术工艺,物料在窑内滚动前行、热烟气在窑外筒环绕前行,热介子烟气与被加热物料为非接触式换热,受换热筒壁面积限制,使筒内物料换热效率较低,受热不均,常出现物料粘壁现象;物料热分解速度较慢,单台设备产能较低;加热介子为热烟气,在窑筒外壁运行时,会对外壁污染结垢,增加热阻,降低传热效率;同时烟气在物料入口侧外壁会因冷物料而结露形成酸化腐蚀。 Exists existing pyrolysis oil sands process application of separation techniques are as follows: 1, using the presence of direct-fired furnace heat retorting oxidation is difficult to control the combustion process, the raw material is low and gas separation recovery process complex, high energy consumption, pollution heavy equipment and low defect single capacity; 2, using external heat kiln carbonization process technology, the material forward in the rolling kiln where the hot gases in the kiln around the forward outer cylinder, meson smoke and heat non-heated material contact heat, by heat exchange cylinder wall area restricted, so that less heat exchange efficiency barrel material, uneven heating, often occurs the phenomenon of wall material viscosity; slow thermal decomposition of the material, a single lower equipment capacity; heating meson of hot flue gas in the cylindrical outer wall of the kiln is running, the outer wall of pollution will scale, increase the thermal resistance, heat transfer efficiency; while the outer wall of the flue gas dew condensation due to the cold material is formed on the material inlet side etching acidified. 综上,现行油砂干馏分离技术工艺尚处于工业化试验成长阶段,不能满足现代工业化生产要求。 In summary, the existing oil sands separation technology pyrolysis process is still in the experimental stage of development of industrialization, industrial production can not meet modern requirements.

发明内容 SUMMARY

[0004] 本发明的目的是为油砂干馏分离综合利用提供一种联动螺旋回程式油砂干馏工艺系统,其运行可靠、气、固、液三种产品分离稳定、彻底。 [0004] The object of the present invention is to separate pyrolysis oil sands is provided a linkage utilization flyback coil system retorting oil sands, which is reliable, gas, solid, liquid stable three products separated completely.

[0005] 本发明的技术方案是: 一种联动螺旋回程式油砂干馏工艺系统,包括原料干燥单元、热解干馏单元、蓄热旋流热风单元、冷凝分离单元以及尾砂冷却单元,其特征在于:所述热解干馏单元采用联动螺旋三回程干馏装置,所述联动螺旋三回程干馏装置由加热箱和设于加热箱中的多组相互平行的三回程螺旋机组成,每组三回程螺旋机由首尾相连通且由上至下垂直布置的预热螺旋机、热解螺旋机和干馏螺旋机组成,所述预热螺旋机管体一端设有伸出加热箱壳体上表面的进料口,所述干馏螺旋机管体远离进料口的一端设有伸出加热箱壳体下表面的出料口, 所述预热螺旋机和热解螺旋机之间设有热风导流隔板I,所述热解螺旋机和干馏螺旋机之间设有热风导流隔板II,所述热风导流隔板I、II在加热箱内形成三条首尾相通的上、中、 下热风换热通道,所述 [0005] aspect of the present invention is: A spiral flyback system linkage retorting oil sands, including feedstock drying unit, the pyrolysis unit retorting, hot regenerator cyclone unit, the condensing unit and the tailings separated cooling unit, characterized in wherein: said pyrolysis pyrolysis unit with three return helical linkage pyrolysis device, said interlocking means of the pyrolysis coil, three-pass heating tank and heating the tank is provided in the plurality of sets of three parallel screw machine backhaul composition, groups of three helical return machine on and joined end to end by a vertically arranged top to bottom of the preheating spiral machine, pyrolysis and carbonization screw machine screw machine composed of the preheating spiral machine is provided with the feed end of the tubular body projecting on the housing surface of the heating chamber port, one end of the tubular body away from the pyrolysis screw machine feed inlet is provided at the discharge port of the housing surface extending heating chamber, said hot air flow separator is provided between the preheating spiral screw conveyor unit and pyrolysis I, the heat dissipation plates is provided with a hot air dryer and II between the helicase pyrolysis screw machine, the hot air flow separator I, II is formed on the end to end communication in the three heating cabinet, a hot air heat exchanger, the lower channel, said 加热箱壳体下表面和上表面分别设有与热风导流通道相通的进风口和出风口,相邻的两组三回程螺旋机之间沿其轴向设有多根集气坚管,所述集气坚管与其对应的预热螺旋机、热解螺旋机和干馏螺旋机管壳之间分别利用支管连通,各集气坚管顶部伸出加热箱壳体后连接有通向蓄热旋流热风单元或冷凝分离单元的集气横管。 The lower surface of the heating box and the housing are provided on the surface of a hot air flow passage communicating with the inlet and outlet, provided with a plurality of plenum pipes firm axial direction thereof between adjacent two of the three return screw machine, the Kennedy said plenum tube corresponding preheating spiral machine, respectively, by using communication between the manifold and the pyrolysis pyrolysis screw machine screw machine shell, each set top gas pipe firmly connected to leads extending rotary regenerative heating tank housing hot air unit stream separation unit or condensation plenum cross tubes.

[0006] 上述的联动螺旋回程式油砂干馏工艺系统,所述蓄热旋流热风单元包括热风炉、 热风循环风机、燃烧系统鼓、引风机和四通换向阀,所述燃烧室内设有旋流管式换热装置, 所述旋流管式换热装置由平行、错列布置的换热管束、设于换热管束两端的连管端板组成, 所述换热管束通过两端的连管端板分别与热风炉低温热风入口管路、高温热风出口管路封闭连接并连通,所述高温热风出口管路与联动螺旋三回程干馏装置的进风口相连接,所述低温热风入口管路与热风循环风机出风口相连接,所述热风循环风机的吸风口与联动螺旋三回程干馏装置的出风口相连接形成闭式热风系统,所述热风炉炉体两侧均布置有两组燃烧系统用新风/烟气联箱,同一侧的上、下部两组新风/烟气联箱分别对应换热管束的两端,且新风/烟气联箱与所述燃烧室之间分别设置 [0006] The interlock coil flyback oil sand pyrolysis process system, a hot cyclone unit comprises a heat storage stove, hot air circulation blower, combustion system drum, induced draft fan and four-way valve, the combustion chamber is provided with swirl tube heat exchanger means, said heat exchanger device consists of swirl tube parallel to the wrong exchange bundle arranged in a column, attached exchange bundle disposed at opposite sides of the tube end plate, through the heat exchange tubes connected to both ends of the beam tube end plate respectively low temperature hot stove inlet conduit, a hot air temperature and the outlet conduit is connected in communication is closed, the high-temperature hot air outlet conduit and the three return helical linkage pyrolysis device is connected to the air inlet, the low-temperature hot air inlet conduit with hot air circulation fan outlet connected to the suction inlet of the hot air circulation fan in conjunction with three-pass pyrolysis coil outlet means are connected to form a closed hot air system, a stove furnace are arranged on both sides of the two combustion systems with fresh air / flue gas header, on the same side, the lower portion of the two fresh air / flue gas header exchange bundle ends respectively, and are disposed between the fresh air / flue gas header with the combustion chamber 蜂窝式高铝蓄热体作为隔断墙体,每组所述新风/烟气联箱上部分别设有引出箱外的法兰短管,所述四通换向阀的数量为两个且分别布置于热风炉炉体两侧,所述四通换向阀的两个纵向管口分别与同侧的两组新风/烟气联箱的法兰短管相连,四通换向阀的两个横向管口分别与燃烧系统鼓风机的出风口和引风机的吸风口相连,所述燃烧室两侧分别设有燃气喷嘴,所述燃气喷嘴的燃气接口端穿过蜂窝式高铝蓄热体和新风/烟气联箱与外部储气罐相连接。 Alumina honeycomb regenerator as a partition wall, each of the fresh air / flue gas header are respectively provided with an upper flange outer lead stub case, the number of two and four-way valve is arranged respectively on both sides of the furnace hot stove, the four-way valve, respectively, two longitudinal spout / flue gas header flange short tube connected to the two new wind ipsilateral lateral two way valve and the suction outlet the nozzle outlet, respectively, and the induced draft fan blower connected to the combustion system, the combustion chamber are respectively provided on both sides of the gas nozzle, the gas passes through the nozzle gas interface end alumina honeycomb regenerator and fresh air / flue gas headers connected to an external tank.

[0007] 上述的联动螺旋回程式油砂干馏工艺系统,所述三回程螺旋机的传动机构由分别安装于所述预热螺旋机首部和干馏螺旋机尾部的主动链轮、分别安装于所述预热螺旋机尾部和干馏螺旋机首部的中间链轮、安装于所述热解螺旋机首、尾部的从动链轮、连接于所述预热螺旋机尾部中间链轮与所述热解螺旋机尾部从动链轮间的传动链条、连接于所述干馏螺旋机首部中间链轮与所述热解螺旋机首部从动链轮间的传动链条组成。 [0007] The linkage flyback coil system retorting oil sands, the three return helical gear by the machine are attached to the drive sprocket preheating coil portion and the nose end of the pyrolysis screw machine, are mounted on the preheating screw conveyor screw conveyor tail and intermediate sprocket carbonization header portion attached to the first pyrolysis screw machine, the tail of the driven sprocket connected to the screw conveyor tail preheating intermediate sprocket and the pyrolysis coil machine drive chain between the tail of the driven sprocket, the pyrolysis coil is connected to the intermediate sprocket and the nose portion of the transmission chain between said first portion of the driven sprocket pyrolysis spiral machine. 以采用链条联结传动方式,在实现传动比的同时,利于动力机与工作机之间隔热,保证了动力机的工作温度环境;另外,采用双主动链轮驱动的方式避免了单台驱动装置因螺旋总承过长使螺旋总承扭拒过大而增大螺旋轴几何尺寸,减少螺旋管内有效流通面积,降低输料能力。 Transmission mode to employ chain links, while achieving the gear ratio, facilitates insulation between the power machine and the work machine, the operating temperature to ensure that the power machine environment; Moreover, dual drive sprocket driven manner to avoid the single drive means by a spiral Total Cheng long spiral principal resist twisting the screw shaft is increased too large geometrical dimensions, reducing the effective flow area of ​​the spiral, reduced conveying capacity.

[0008] 上述的联动螺旋回程式油砂干馏工艺系统,所述预热螺旋机、热解螺旋机和干馏螺旋机的管壳外侧沿其长度方向均匀布置有多组换热筋片,每组换热筋片沿管壳周向均匀分布。 [0008] The linkage flyback coil system retorting oil sands, the outer casing tube preheating spiral machine, pyrolysis and carbonization screw machine screw conveyor along its longitudinal direction a plurality of sets are arranged uniformly heat rib pieces, each heat transfer sheet in the envelope circumferential ribs uniformly distributed. 以强化螺旋机管壳热风侧的换热面积和换热效率,保证热风中的热能通过换热筋片有效、稳定、可靠的传递到螺旋机内的物料。 To enhance heat transfer area and the heat exchange efficiency of the shell-side spiral hot air dryer, the heat energy in the air to ensure the efficient, stable, reliable delivery of material to the screw conveyor through a heat exchanger in the rib piece.

[0009] 上述的联动螺旋回程式油砂干馏工艺系统,所述加热箱壳体由内到外依次由耐热不锈钢板、耐热隔热层和Q235钢板组成。 [0009] The interlock coil flyback oil sand pyrolysis process system, from the housing of the heating chamber inside to outside by a heat-resistant stainless steel, heat-resistant insulating layer composed of steel and Q235.

[0010] 上述的联动螺旋回程式油砂干馏工艺系统,所述联动螺旋三回程干馏设备螺旋总承均匀设有四道滑环,以避免螺旋轴过长产生下弯变形现象,确保螺旋总承在管内正常运转。 [0010] The interlock coil flyback oil sand pyrolysis process system, the interlocking three return helical coil pyrolysis apparatus has four principal homogeneous slip ring to prevent the screw shaft bending deformation phenomena produce long, helical principal ensure in the normal operation of the tube.

[0011] 上述的联动螺旋回程式油砂干馏工艺系统,所述进风口与热风导流通道之间设有进风布风箱,所述出风口与热风导流通道之间设有回风布风管。 [0011] The interlock coil flyback oil sand pyrolysis process system, the intake air inlet is provided between the air distribution box and the hot air outlet flow passage, said return air with the air distribution channel between the outlet and the hot air flow tube.

[0012] 上述的联动螺旋回程式油砂干馏工艺系统,所述燃烧室上部两侧分别设有脱硝剂喷嘴,以采用SMCR脱硝工艺进行炉内脱硝,确保烟气达标排放,减污环保。 [0012] The interlock coil flyback oil sand pyrolysis process system, the combustion chamber are respectively provided on both sides of an upper portion of a denitration agent nozzle, to employ SMCR furnace denitration denitration process is performed to ensure that the flue gas discharge standards, environmental abatement.

[0013] 上述的联动螺旋回程式油砂干馏工艺系统,所述换热管束采用不锈钢管,且其内设有长螺距螺旋片,螺距为100mm-200mm,以保证热风在管束内呈螺旋贴壁流型进、出管束, 增大传热系数。 [0013] The interlock coil flyback oil sand pyrolysis process system, the heat exchange tube bundle with stainless steel, and which are equipped with long pitch helical sheet, a pitch of 100mm-200mm, in the form of hot air to ensure that the helix bundle adherent flow into and out of the tube bundle, the heat transfer coefficient is increased.

[0014] 上述的联动螺旋回程式油砂干馏工艺系统,所述热风炉外壳采用钢板,壳体内壁设有三层耐火材料构筑的隔热层,以达到隔热、保温的目的。 [0014] The interlock coil flyback oil sand pyrolysis process system, a stove steel shell, a heat insulating housing wall constructed of the three layers refractory material, in order to achieve thermal, insulation purposes.

[0015] 本发明的有益效果是: 1、该系统工艺流程简单,油砂原料在联动螺旋三回程干馏装置内经过预热螺旋机(第一行程)被加热,经过热解螺旋机(第二回程)被热解,经过干馏螺旋机(第三回程)被干馏。 [0015] Advantageous effects of the invention are: 1. The system is simple process, the preheated feed oil sand screw conveyor (first stroke) is heated in the three return helical linkage pyrolysis device through a pyrolysis screw conveyor (a second return) is pyrolyzed, after pyrolysis screw machine (third backhaul) is carbonized. 油砂原料经过联动螺旋三回程干馏装置干馏分离出气液两相组份以气相形态析出,经管道进入横管冷凝分离单元,在冷却介子冷却水作用下,油气中的液相组份被冷凝还原为液相轻质油,除去液相组份的气体成为单纯的可燃气体;被干馏后的尾砂经尾砂冷却单元冷却后可用于改性浙青基料和建材配料;干馏加热的介子为由蓄热旋流热风装置提供的高温热风,循环加热使用,在蓄热旋流热风装置中燃烧加热热风的燃料为油砂原料干馏分离出来经过冷却净化处理后的可燃气体。 After separation of the oil sands feed three return helical linkage means distillation of pyrolysis liquid two-phase set of parts precipitating gas phase, via a conduit into the cross-tube condensing-separating means, the cooling water in the cooling effect meson, the liquid components are reduced by the condensed hydrocarbon light oil as liquid phase, gas liquid components removed parts becomes simple combustible gas; tailings through the tailings cooling unit may be used after being carbonized binder, and modified building materials Zhejiang green ingredients; retort heating is meson provided by high-temperature heat storage swirl-blowing hot air, using a heating cycle, hot fuel combustion heating combustible gas is separated by cooling the oil sands feedstock purification carbonized hot air swirl in the heat storage apparatus. 油砂原料通过本工艺系统干馏后生产出油砂轻质油、可燃气、尾矿三种产品,具有运行可靠、气、固、液三种产品分离稳定、彻底的优点。 Oil sand feedstock through the pyrolysis system of the present process produces light oil sand oil, gas, tailings three products, having a reliable, gas, solid and liquid separation stable three products, complete advantages.

[0016] 2、由于采用联动螺旋三回程干馏装置,其整合性能优良,物料在其中完成加热、热解、干馏三个工况过程,完成气、固、液三种产品的生产过程。 [0016] 2, the use of three return helical linkage pyrolysis device that integrates excellent performance, the material in which the completion of the heating, pyrolysis, pyrolysis three process conditions, complete gas, solid, liquid three kinds of production process. 物料在干馏装置中依次经过预热螺旋机、热解螺旋机和干馏螺旋机推动运行,既保证物料前行的可靠性,又保证了物料与螺旋机管壁充分接触达到换热目的,同时三回程螺旋机并联极大的增加了换热面积和物料接触面积,显著增强了换热效果。 Material in the pyrolysis device sequentially preheated screw machine, pyrolysis and carbonization screw machine screw machine driven operation, both to ensure the reliability of the material forward, but also to ensure that the material in contact with the screw conveyor to achieve sufficient heat transfer wall object, while three parallel spiral return greatly increases the heat transfer area and the contact area of ​​the material significantly enhances the heat transfer.

[0017] 3、由于联动螺旋三回程干馏装置中布置有集气坚管和集气横管,及时将物料在加热、热解、干馏工艺过程中分离出的气相组份全部及时排出三回程螺旋机外,减少了螺旋机内气相组份的分压力,利于物料中气相组份的析出分离。 [0017] 3, since the interlocking spiral three-pass pyrolysis apparatus is arranged plenum strong pipes and the plenum cross tubes, in time the material separated in the heating, pyrolysis, pyrolysis process the gaseous components of all timely discharged three return helical outside the machine, reducing the spiral machine parts component vapor pressure, the conducive material parts separating gaseous components precipitated.

[0018] 4、由于联动螺旋三回程干馏装置中布置了两层热风导流隔板,则自下而上形成三条首尾相通的下、中、上热风导流通道,从而形成自下而上三个不同温度场,即预热螺旋机、 热解螺旋机和干馏螺旋机分别处于不同的温度场,使物料在三个回程的螺旋机中具有不同的物质形态,利于传质换热,实现物料气、固、液三态转化分离。 [0018] 4, due to the interlocking means in the pyrolysis coil, three-pass two hot air flow separator is arranged, the bottom-end to form a three lower communication, in the hot air flow passage, thereby forming the three bottom-up different temperature field, i.e., the preheating spiral machine, pyrolysis and carbonization screw machine screw machine field are at different temperatures, with the material in three different physical forms of the return spiral machine, facilitate heat transfer and mass transfer to achieve material separating gas, solid and liquid tristate conversion.

[0019] 5、由于联动螺旋三回程干馏装置采用三回程螺旋机,使物料从进料口到出料口经过长距离换热过程(长度约60m),延长了物料加热分解的时间,同时物料因采用螺旋机强制推进,从而避免了物料粘壁、滞料现象,保证了物料在螺旋机内稳定、均匀前行换热,实现加热、热解、干馏工艺过程。 [0019] 5, since the three return helical linkage pyrolysis apparatus using three return screw machine, the material from the feed port to the discharge port through the heat exchanger during a long distance (about 60m length), extends the time of thermal decomposition of material, while the material forced by spiral propulsion machine, thus avoiding the wall material viscosity, the material stagnation phenomena, to ensure the stability of materials in the screw machine, even before the heat transfer line, to achieve the heating, pyrolysis, retorting process.

[0020] 6、由于联动螺旋三回程干馏装置采用三回程螺旋机,三回程干馏设备加热物料长度大于60m,但设备整体长度小于24m,设备长宽比合理,利于设备总图平面布置,节约占地面积和厂房空间。 [0020] 6, since the helical linkage pyrolysis device with three three-pass return screw machine, the three return pyrolysis apparatus for heating material length greater than 60m, but the overall length of the device is less than 24m, the aspect ratio of the device is reasonable, the total beneficial FIG device layout, savings accounts and the area of ​​factory space.

[0021] 7、采用联动螺旋三回程干馏装置在转速60转/分,物料水平速度2. 5m/min条件下,加热处理油砂物料达50t/h ·台以上,年处理油砂物料达36万吨/年(工作300天)比国内回转窑干馏设备(Φ 3000)生产能力20万吨/年增加16万吨/年,生产能力提高80%。 [0021] 7, using three interlocking spiral return speed of the pyrolysis apparatus 60 rev / min, speed of the material level 2. / min conditions 5m, heat treated oil sands material of more than 50t / h · station, in the processing of oil sands material 36 tons / year (300 days of work) than domestic rotary kiln pyrolysis equipment (Φ 3000) production capacity of 200,000 tons / year increase of 16 million tons / year, production capacity increased by 80%. 同时设备外型几何尺寸小于回转窑干馏设备,生产能力最大。 At the same time equipment exterior geometry less than kiln dry distillation equipment, the largest production capacity.

[0022] 8、联动螺旋三回程干馏装置加热干馏油砂物料适应性强,特别是物料粒度适应性更强,不会因物料粒度偏大不均,在窑内受热时间不够长,温度场不均匀而使部分物料热解分离不彻底,半原料出窑,影响生产作业率和物料加热分离率。 [0022] 8, the three return helical linkage means for heating the pyrolysis pyrolysis oil sands material adaptability, particularly adaptable material size, material size is not too large because of unevenness, heating time is long enough in the kiln, the temperature field is not the pyrolysis part of the material uniform separation is not complete, half the kiln feed, and the rate affect production operations were heated separation rate.

[0023] 9、蓄热旋流热风炉采用了燃烧效率最优的蓄热式燃烧工艺和气一气换热效率最优的旋流管式烟气一空气换热技术。 [0023] 9, the heat storage using the optimum swirl stove optimum combustion efficiency of regenerative heat exchange efficiency of the combustion process and gas swirl tube stretch a flue gas-air heat exchanger technology. 使本生产工艺加热热源热风的供应得到保证,确保联动螺旋三回程干馏装置稳定安全可靠运行。 Production process of the present supply of hot air heat source is ensured, to ensure that the three return helical linkage pyrolysis device stable and safe and reliable operation.

[0024] 10、蓄热旋流热风炉生产热风为洁净热空气,传热系数大,热阻小,在进入干馏装置的热风换热通道时利于换热,流通阻力小,不会因尘垢粘壁增加热阻影响传热进行,使螺旋机管壳内物料稳定均匀受热,达到加热、热解、干馏工艺目的。 [0024] 10, producing hot air for the regenerator cyclone stove clean hot air, heat transfer coefficient, low thermal resistance, heat beneficial when entering the heat exchange channels hot pyrolysis apparatus, a small flow resistance, dirt will not stick Effect of heat transfer in the thermal resistance of the wall increases, so that the envelope screw machine material stable uniform heating, to heat, pyrolysis, retorting purposes.

[0025] 11、蓄热旋流热风炉采用蓄热燃烧工艺和旋流管换热技术,使炉内温度场均匀可靠,利于烟气和空气换热,不需过氧燃烧而产生氮氧化物,排放污染环境,不需过氧减少鼓、 引风机轴功率,节省电能;采用高铝耐热蓄热体装置,使燃烧用新风和排烟显热在经过蓄热体装置时被加热和吸热,得到有效回收利用,利于炉内燃烧、降低排烟温度、减少排烟热损失、节能减排。 [0025] 11, the heat storage using regenerative stove cyclone combustion process and heat transfer technology swirl tube, the furnace temperature field uniform and reliable, and facilitates the flue gas-air heat exchanger, without a peroxygen nitrogen oxides generated by combustion emissions environmental pollution, without reducing peroxygen drums, fan shaft power, save energy; alumina using heat regenerator means with fresh air and the combustion exhaust gas passes through the sensible heat in the regenerator is heated and suction means heat, effectively recycled, conducive to the furnace combustion, reduce exhaust gas temperature, reducing heat losses, energy conservation.

附图说明 BRIEF DESCRIPTION

[0026] 图1是本发明的工艺流程图; 图2是本发明的联动螺旋三回程干馏装置的结构示意图; 图3是图2中AA向剖面图; 图4是本发明的蓄热旋流热风炉的结构示意图; 图5是图4的左视图。 [0026] FIG. 1 is a process flow diagram of the present invention; FIG. 2 is a schematic view of the present invention, the helical interlocking three-pass pyrolysis apparatus; FIG. 3 is a sectional view taken along line AA in FIG. 2; Figure 4 is a regenerator cyclone of the present invention stove structural diagram; FIG. 5 is a left side view of FIG.

[0027] 图中序号说明:1加热箱、2预热螺旋机、3热解螺旋机、4干馏螺旋机、5进料口、6 主动链轮、7热风导流隔板I、8从动链轮、9料通管、10中间链轮、11进风布风箱、12进风口、13出料口、14主动链轮、15热风导流隔板II、16从动链轮、17料通管、18中间链轮、19 出风口、20回风布风管、21散热筋片、22集气坚管、23支管、24集气横管、25热风炉外壳、26 低温热风入口管路、27旋流管式换热装置、2701换热管束、2702连管端板、28新风/烟气联箱、29蓄热体、30燃气喷嘴、3001燃气接口端、31高温热风出口管路、32热风炉炉体、33法兰短管、34燃烧室、35四通换向阀、3501纵向管口、3502横向管口。 [0027] FIG sequence number: 1 heating tank, screw machine preheater, pyrolysis screw conveyor 3, 4 carbonization screw machine, feed port 5, the drive sprocket 6, a separator 7 the hot air flow I, 8 follower sprocket 9 through the feed tube, the intermediate sprocket 10, 11 into the wind boxes air distribution, air inlet 12, the discharge port 13, the drive sprocket 14, a hot air flow separator 15 II, 16 a driven sprocket 17 through the feed pipe, an intermediate sprocket 18, outlet 19, return air distribution duct 20, cooling ribs 21 sheets, strong gas collector tube 22, tube 23, the plenum cross pipe 24, a hot air oven housing 25, the low-temperature hot air inlet pipe 26, swirl tube heat exchanger means 27, 2701 exchange bundle, the end plate with tube 2702, 28 fresh air / flue gas header, the heat storage member 29, the gas nozzle 30, 3001 gas interface end, the high-temperature hot air outlet line 31, 32 furnace hot stove, the stub flange 33, a combustion chamber 34, four-way valve 35, the longitudinal nozzle 3501, 3502 lateral spout.

具体实施方式 detailed description

[0028] 如图所示,该联动螺旋回程式油砂干馏工艺系统由原料干燥单元、热解干馏单元、 蓄热旋流热风单元、冷凝分离单元、尾砂冷却单元及相应公辅配套单元组成。 [0028] As shown, the interlocking coil flyback oil sand pyrolysis process system from the raw material drying unit, the pyrolysis unit retorting, hot regenerator cyclone unit, condensation separation unit, a cooling unit and corresponding tailings public auxiliary supporting units . 热解干馏单元和蓄热旋流热风单元为本系统的关键设备。 The key device pyrolysis pyrolysis unit and the heat storage unit of the present system is hot cyclone.

[0029] 其中,所述热解干馏单元采用联动螺旋三回程干馏装置,所述联动螺旋三回程干馏装置由加热箱1和设于所述加热箱1中的多组相互平行的三回程螺旋机组成,所述三回程螺旋机由首尾相连通且由上至下垂直布置的预热螺旋机2、热解螺旋机3和干馏螺旋机4组成,所述预热螺旋机2和热解螺旋机3的管壳之间、热解螺旋机3和干馏螺旋机4的管壳之间分别利用料通管17、9连接并连通。 [0029] wherein the pyrolysis coil pyrolysis unit with three return linkage pyrolysis device, said interlocking means for heating the pyrolysis coil, three-pass tank return more than one group of three and a screw conveyor disposed in said heating chamber 1 in parallel to each other composition, the three return joined end to end by a screw conveyor arranged vertically from top to bottom and through a preheating coil unit 2, coil unit 3 and the pyrolysis unit 4 composed of the pyrolysis coil, the preheating and pyrolysis screw conveyor screw conveyor 2 between the shell 3, respectively, using a pyrolysis screw conveyor feeding through pipes and the communication connection between 17,9 pyrolysis screw conveyor 3 and 4 of the envelope. 所述预热螺旋机2管体一端设有伸出所述加热箱1壳体上表面的进料口5,所述干馏螺旋机4管体远离所述进料口5的一端设有伸出所述加热箱1壳体下表面的出料口13。 Preheating the screw conveyor 2 is provided with one end extending out of said heating feed port 5 of the housing 1 on the box surface, the pyrolysis screw conveyor 4 moves away from the feed port 5 is provided with a projecting end the heating tank 1 of the discharge opening surface of the housing 13. 所述三回程螺旋机的传动机构由分别安装于所述预热螺旋机2首部和干馏螺旋机4尾部的主动链轮6、14、分别安装于所述预热螺旋机2尾部和干馏螺旋机4首部的中间链轮18、10、安装于所述热解螺旋机3首、尾部的从动链轮8、16、 连接于所述预热螺旋机2尾部中间链轮18与所述热解螺旋机3尾部从动链轮16间的传动链条、连接于所述干馏螺旋机4首部中间链轮10与所述热解螺旋机3首部从动链轮8间的传动链条组成。 The three return helical gear by the machine are attached to the preheating portion 2 and a screw conveyor screw machine 4 tail pyrolysis drive sprocket 6 and 14, are mounted on the screw conveyor preheating and retorting aft screw conveyor 2 intermediate sprocket four portions 18,10 attached to the pyrolysis screw machine 3, the rear driven sprocket 8, 16, connected to the preheating spiral tail unit 2 to the intermediate sprocket 18 and pyrolysis tail screw conveyor 3 driven sprocket drive chain 16 connected to the pyrolysis screw conveyor 4 and the intermediate sprocket 10 to the pyrolysis screw conveyor 3 driven sprocket portion 8 of the drive chain components. 所述预热螺旋机2和热解螺旋机3之间设有热风导流隔板I 7,所述热解螺旋机3和干馏螺旋机4之间设有热风导流隔板II 15,所述热风导流隔板I、II 7、15在加热箱1内形成三条首尾相通的上、中、下热风导流通道,所述加热箱1壳体下表面和上表面分别设有与热风导流通道相通的进风口12和出风口19,所述进风口12与热风导流通道之间设有进风布风箱11,所述出风口19与热风导流通道之间设有回风布风管20。 The preheating unit 2 is provided with a helical screw conveyor and the pyrolysis hot air flow between the separator 3 I 7, is provided with a hot air flow separator 4 II 15 between the pyrolysis and the pyrolysis helical screw conveyor unit 3, the said hot-air flow separator I, II 7,15 communicating form three end to end on, the hot air flow path within the heating tank 1, the heating surface and the upper surface of the housing 1 are provided with the hot air guide box flow path communicating the air inlet 12 and outlet 19, the intake air inlet is provided between the air distribution box 11 and the hot air flow passage 12, the outlet 19 is provided between the hot air return flow passage with the air distribution pipe 20. 为加强换热效果,所述预热螺旋机2、热解螺旋机3和干馏螺旋机4的管壳外侧沿其长度方向均匀布置有多组散热筋片21,每组所述散热筋片21沿管壳周向均匀分布。 To strengthen the effect of heat, a preheating screw conveyor 2, the outer casing tube pyrolysis coil unit 3 and the pyrolysis screw machine 4 along its length a plurality of sets are arranged uniformly radiating rib plate 21, each plate 21 of the cooling ribs along the circumferential envelope uniformly distributed. 所述加热箱1壳体由内到外依次由耐热不锈钢板、耐热隔热层和Q235钢板组成。 The heating chamber 1 from the housing inside to outside by a heat-resistant stainless steel, heat-resistant insulating layer composed of steel and Q235. 相邻的两组所述三回程螺旋机之间沿其轴向设有多根集气坚管22,所述集气坚管22与其对应的预热螺旋机2、热解螺旋机3和干馏螺旋机4管壳之间分别利用支管23连通,各所述集气坚管22顶部伸出加热箱1壳体后连接有通向蓄热旋流热风单元或冷凝分离单元的集气横管24。 Is provided with a plurality of gas gathering tube 22 firmly in its axial direction between said two of the three adjacent return screw machine, said manifold tube 22 corresponding thereto Kennedy preheating coil unit 2, coil unit 3, and pyrolysis pyrolysis respectively, using the branch pipe 23 communicating between the screw conveyor housing 4, each of said manifold 22 is connected with a hard top of the tube leading to the heat storage unit or a hot cyclone separating the condensed gas collection unit after the heating tank 1 extending transverse tube 24 housing . 其中,部分集气坚管22仅与预热螺旋机2连接用于将预热螺旋机2中干燥物料产生的水蒸汽输送给蓄热旋流热风单元的热风系统加湿热风,部分集气坚管22与预热螺旋机2后程、热解螺旋机3和干馏螺旋机4同时连通(参见图3),部分集气坚管22与热解螺旋机3和干馏螺旋机4同时连通,用于将高温混合气体送入冷凝分离单元实现液相轻质油和可燃气体的分离。 Wherein the water vapor transport gas partial set Kennedy tube 22 only connect the preheating spiral screw conveyor 2 for preheating the dried material produced hot cyclone 2 to the regenerator hot air system hot air humidifying unit, part of the gas collector tube Kennedy preheating coil 22 after the process unit 2, the coil unit 3 and the pyrolysis pyrolysis screw conveyor 4 are simultaneously connected (see FIG. 3), part of the gas collector tube 22 strong pyrolysis coil unit 3 and the communication pyrolysis screw conveyor 4 at the same time, for the high temperature mixing gas into a liquid phase separation condensation separation unit and light oil combustible gas.

[0030] 本实施例中,采用三组三回程螺旋机,三组三回程式螺旋机中心距为700mm,每组三回程螺旋机的管壳内径为Φ500 mm,进、出料口中心线距离20m,上、中、下三台螺旋机的轴距分别为700mm。 [0030] In this embodiment, with three groups of three return screw machine, three groups of three flyback screw machine center distance of 700mm, an inner diameter of each three-pass shell and tube screw conveyor is Φ500 mm, into the center line from the discharge port 20m, upper, middle and lower three screw machine wheelbase respectively 700mm. 在预热螺旋机2、热解螺旋机3和干馏螺旋机4的管壳外侧分别沿长度方向布置有24组换热筋片21,换热筋片21绕圆周均布,换热筋片21高度为80 mm、厚度为12 mm。 2, the outer shell pyrolysis screw conveyor 3 and the pyrolysis unit 4 are arranged in a spiral in a preheating screw machine direction longitudinal ribs 24 set of heat plate 21, rib pieces 21 around the circumference of the heat exchanger uniform, heat transfer sheet reinforcement 21 height of 80 mm, a thickness of 12 mm. 集气坚管22的管径为ΦΙΟΟπιπι,两侧分别用Φ50·ι的支管23与各螺旋机外壳连通,集气坚管22沿螺旋机长度方向每间隔2m布置一个,集气横管24的管径为Φ 200mm,每个集气坚管22与集气横管24相连通。 Kennedy pipe diameter plenum 22 is ΦΙΟΟπιπι, Φ50 · ι sides respectively of branch pipe 23 communicates with the screw conveyor housing, the plenum tube 22 along the screw machine Kennedy longitudinal direction arranged at intervals of 2m a plenum cross tubes 24 pipe diameter Φ 200mm, each gas gathering tube 22 and the gas collecting solid cross pipe 24 is connected through.

[0031] 所述蓄热旋流热风单元包括热风炉、热风循环风机、燃烧系统鼓、引风机和四通换向阀35,所述燃烧室34内设有旋流管式换热装置27,所述旋流管式换热装置27由平行、 错列布置的换热管束2701、设于换热管束2701两端的连管端板2702组成,所述换热管束2701通过两端的连管端板2702分别与热风炉低温热风入口管路26、高温热风出口管路31 封闭连接并连通,所述高温热风出口管路31与联动螺旋三回程干馏装置的进风口12相连接,所述低温热风入口管路26与热风循环风机出风口相连接,所述热风循环风机的吸风口与联动螺旋三回程干馏装置的出风口19相连接形成闭式热风系统。 The [0031] regenerator cyclone unit comprises a hot air stove, hot air circulation blower, combustion system drum, induced draft fan and four-way valve 35, the combustion chamber 34 and tube heat exchanger equipped with swirl means 27, the swirl tube device 27 by the heat exchanger parallel to the wrong exchange bundle arranged in 2701, provided in the exchange bundle tube connected at both ends of the end plate 2701 composed 2702, 2701 through the heat exchange tube bundle with tube ends of the end plates 2702, respectively stove hot air inlet line 26 low, the high temperature hot air outlet connection and communication line 31 is closed, the high-temperature outlet hot air inlet pipe 31 with the coupling coil 12 of the three-pass pyrolysis device is connected to the low-temperature hot air inlet with hot air circulation line 26 is connected to the fan outlet, the three return helical suction outlet of the pyrolysis device and the hot air circulation blower outlet 19 of the linkage are connected to form a closed hot air system. 所述热风炉炉体32两侧均布置有两组燃烧系统用新风/烟气联箱28,同一侧的上、下部两组新风/烟气联箱28 分别对应换热管束2701的两端,且新风/烟气联箱28与所述燃烧室34之间分别设置蜂窝式高铝蓄热体29作为隔断墙体,每组所述新风/烟气联箱28上部分别设有引出箱外的法兰短管33,所述四通换向阀35的数量为两个且分别布置于热风炉炉体32两侧,所述四通换向阀35的两个纵向管口3501分别与同侧的两组新风/烟气联箱28的法兰短管33相连, 四通换向阀35的两个横向管口3502分别与燃烧系统鼓风机的出风口和引风机的吸风口相连,所述燃烧室34两侧分别设有燃气喷嘴30,所述燃气喷嘴30的燃气接口端3001穿过蜂窝式高铝蓄热体29和新风/烟气联箱28与外部储气罐相连接,所述燃烧室34上部两侧分别设有脱硝剂喷嘴。 The stove furnace 32 has two sets disposed on both sides with a new combustion system, air / flue gas header 28, on the same side, the lower portion of the two fresh air / flue gas header 28 respectively corresponding to both ends of the exchange bundle 2701, and fresh air / flue gas header 28 respectively disposed between the alumina honeycomb regenerator 34 the combustion chamber 29 as a partition wall, each of the fresh air / flue gas 28 upper headers are provided outside the lead tank short tube flange 33, the four-way valve 35 is the number two and are arranged at both sides of the stove furnace 32, the two four-way valve orifice longitudinal 350,135 respectively ipsilateral two sets of fresh air / flue gas header pipe 28 connected to the short flange 33, two four-way valve transverse orifices 350,235 respectively with the blower outlet of the combustion system and the suction draft fan outlet connected to the combustion chamber 34 are provided on both sides of the gas nozzle 30, the gas interface end 30 of the gas nozzle 3001 through alumina honeycomb regenerator 29 and fresh air / flue gas header 28 is connected to the external tank, the combustion an upper chamber 34 are respectively provided on both sides of the denitration agent nozzles. 所述热风炉外壳25采用钢板,壳体内壁设有三层耐火材料构筑的隔热层。 The use of steel stove housing 25, the housing inner wall is provided with three insulating refractory layer constructed.

[0032] 本实施例中,所述热风炉炉体32有效容积尺寸长、宽、高为3000X2400X2400,旋流管式换热装置27结构尺寸为3000X 1400X2000。 [0032] In this embodiment, the effective volume of the stove furnace 32 size length, width, height 3000X2400X2400, swirl means 27 and tube heat exchanger structure size 3000X 1400X2000. 所述换热管束2701采用不锈钢管,且其内设有长螺距螺旋片,本实施例中不锈钢管直径为76mm,壁厚为3 mm,螺旋片的螺距为100mm-200mm〇 The beam 2701 with stainless steel heat exchange tubes, and which are equipped with long pitch helical sheet, according to the present embodiment, stainless steel tube having a diameter of 76mm, a wall thickness of 3 mm, the pitch of the helical sheet is 100mm-200mm〇

[0033] 所述原料干燥单元为在原料储库底层设置的换热排管系统,接受来自尾砂冷却单元的被加热的热水将换热排管加热,油砂物料堆放后,接受热水热量而将油砂进行生产前干燥处理,析出水份。 [0033] The material is dried in the heat exchanger unit is a drain pipe system of feedstock reservoir bottom provided, receiving the heated water from the cooling unit of the tailings discharge tube is heated after the heat exchanger, oil sands stockpiling, receiving water heat the oil sands production before the drying process, the moisture deposited. 换热排管内的热水在加热物料冷却后经水泵、管道再送至尾砂冷却单元冷却尾砂,吸热升温后再返回原料干燥单元如此循环工作。 Hot water in the heat exchanger after heating calandria cooling material through pumps, pipes and then sent to tailings tailings cooling unit, heating the endothermic material is dried and then return unit so the cycle work.

[0034] 所述冷凝分离单元主要由横管间接冷却器及相应配套水泵、阀门和管道组成,全部采用现有技术标准配置。 [0034] The condensate separation unit mainly by the cross pipe and corresponding supporting indirect cooling pumps, valves and piping components, all the prior art standard configuration. 其中,横管间接冷却器为直立长方体外壳,冷却水管与水平面呈3°角横向布置,管板外侧管箱与冷却水管连通,构成冷却水通道,分为上、下两段供水。 Wherein the cross pipe indirect cooler upright rectangular housing, the cooling water pipe 3 ° angle with the horizontal plane arranged laterally outer tube plate and the cooling water tank communicating tube, constituting a cooling water passage is divided into upper and lower two water. 上段为循环冷却水,下段为低温冷却水。 Circulating cooling water to the upper section, the lower section of the low-temperature cooling water. 冷凝气体从冷却器上部进入、经过两段降温换热后,气体中的液相组份被冷凝分离出来,冷凝液集中沉入冷却器底部集液池,经泵抽出送入相应储油罐。 Condensable gases entering the cooler from the top, after the two cooling heat exchanger, the liquid components of the gas are separated out of the condensate, the condensate concentration sink bottom sump cooler, into the corresponding tank was pumped. 分离后的气相组份经管道进入气体净化系统处理后送入干式储气柜,经加压风机装入储气罐。 The separated gaseous components into the gas cleaning system via a conduit into the workup of dry storage cabinets, the pressurized gas tank charged with the fan. 冷凝分离单元的冷却水和低温水分别由公辅部分工业冷水机组和冷却塔提供循环使用,工业冷水机组采用双效溴化锂制冷机组,热源采用本工艺油砂分离出的洁净可燃气体。 Low temperature cooling water and condensed water are provided by the separation unit known auxiliary section industrial chillers and cooling towers recycling, industrial chillers double effect lithium bromide refrigeration unit, the heat source using clean combustible gas present in the separated oil sands process.

[0035] 所述尾砂冷却单元主要由双螺旋冷砂装置及相应的水泵、阀门、管道等组成,全部采用现有技术标准系统配置。 [0035] The tailing of the double helix of the cooling unit main cooling means and the corresponding sand pumps, valves, piping and other components, all prior art standard system configuration. 其冷却水管道与原料干燥单元的换热排管系统形成一个闭式系统,冷砂换热升温后的热水经管道送入原料干燥单元的换热排管系统用于干燥油砂原料,放热降温后再返回尾砂冷却单元,循环使用。 Cooling water heat transfer pipe with the raw material drying system exhaust duct forming a closed system unit, after cold sand heated water heat exchanger via a conduit into the exhaust pipe system feed drying unit for drying the raw material oil sands, the discharge tailings return heat to cool before the cooling unit, recycling.

[0036] 工艺流程: 油砂原料由运输车运至工厂油砂原料场地下储库,原料在储库底层的换热排管系统作用下被预热干燥除去部分水份。 [0036] Process: oil sands material transported by a truck to the site plant oil sand reservoir material, the raw material is preheated in a heat exchanger tube row systemic action underlying the reservoir portion of water removed by drying. 干燥后的油砂原料由斗提机提升至地面设备层上的皮带输送机将原料输送到干馏设备前储料仓。 After drying the oil sands material lifted by bucket elevator to the ground on the belt conveyor device transporting layer material to storage bins prior to the pyrolysis device. 储料仓内原料经仓出口电动给料阀将原料送至计量皮带输送机上,经计量后通过炉前缓冲仓落入炉前螺旋给料机,由此送入联动螺旋三回程干馏装置。 The storage silo to the feed motor through the cartridge outlet valve on the feed to the metering belt conveyor, screw feeder after the metering furnace falls through the surge bin furnace, whereby the coil is fed three return linkage pyrolysis device.

[0037] 油砂原料经三回程螺旋机的进料口5进入预热螺旋机2内,在螺旋片推动下贴壁缓慢前行,吸收管壁导热和管内对流热而逐渐加热升温,原料中自由水分陆续析出蒸发,水蒸气经过仅与预热螺旋机2连通的集气坚管、集气横管排出机外经管道送入热风系统加湿热风,当物料温度达到l〇〇°C -150°C时,原料中自由水分全部析出蒸发,完成物料干燥过程。 [0037] Oil sands feedstock through the feed inlet of the three-pass screw machine screw conveyor 5 into the preheater 2, adherent driven at slow forward flight, absorption wall heat conduction and convection within the tube is gradually heated up, the raw material free water was evaporated gradually precipitated, water vapor through gas collector pipe communicating with only strong spiral preheating unit 2, the plenum cross pipe feeding hot air into the discharge conduit foreign economic machine humidified hot air system, when the material temperature reached l〇〇 ° C -150 when ° C, feed free water was evaporated completely deposited, the material to complete the drying process.

[0038] 干燥后的物料在预热螺旋机2尾部通过料通管进入热解螺旋机3内,在螺旋片推动下贴壁缓慢前行,吸收管壁导热和管内对流热而加热升温,当物料温度达到200°C以上时,原料中相关混合物组份相连的化学结合水受热发生脱水反应,物料分子结构发生变化, 由化学结合水相连接的混合物转化成游离无定形的相关氧化物(胶质组份、浙青组份、烃类组份、钙质组份等),并以相关氧化物理化特性形成游离软化物料,随着加热温度升高,软化物料中的挥发组分全部挥发析出,陆续由集气坚管22导入集气横管24送入冷凝分离单元, 烃类组份完全液化形成固液混合物,完成物料热解过程。 [0038] The dried material in a preheating screw conveyor 2 through the feed tube into the tail by pyrolysis screw conveyor 3, driven at flight adherent slowly forward, wall conduction and convection heat absorption of the inner tube and heated up, when when the material temperature reached 200 ° C, a mixture of related parts of the stock chemical joining a group of water heated dehydration reaction, the molecular structure of the material changes, the aqueous phase mixture into the free connection related amorphous oxide (chemically bonded by the glue mass parts of the group, Zhejiang cyan component parts hydrocarbon component, the calcium group, etc.), and the relevant physical and chemical properties form a free oxide softening material, as the heating temperature increases, the volatile components of the softening material deposited all volatiles , have a strong air current introducing tube 22 into the plenum 24 cross tube condensing-separating means, parts fully liquefied hydrocarbon group forming a solid-liquid mixture, to complete the pyrolysis of materials.

[0039] 固液混合物料在热解螺旋机3尾部通过料通管9进入干馏螺旋机4内,在螺旋片推动下贴壁缓慢前行,吸收管壁导热和管内对流热而继续加热升温,当物料温度达到500°C 以上时,固液混合物料中的液相组份全部挥发转化为气相组份,通过集气坚管22和集气横管24排出机外送入冷凝分离单元,完成物料干馏过程,固液分离后的固态组份(尾砂)经出料口排出机外送入尾砂冷却单元。 [0039] The solid-liquid mixed feed in the pyrolysis coil unit 3 through the feed pipe 9 through the tail into the pyrolysis screw machine 4, adherent driven at slow forward flight, the absorption heat conducting wall and the inner tube heat convection heating was continued to heat up, when the material temperature reaches above 500 ° C, the solid-liquid mixture feed all the liquid components into volatile gaseous components, through the plenum and the plenum tube 22 strong cross tubes 24 is discharged outside the machine into the condensing-separating means complete material pyrolysis process, the solid component after solid-liquid separation (tailings) through the discharge opening into the tailings from the plane of the cooling unit.

[0040] 从热解干馏单元分离出的高温混合气体经管道进入冷凝分离单元的横管间接冷却器上部,在冷却水作用下,混合气体降温,部分气体达到冷凝温度被冷凝为液相组份,余下混合气体继续下行,在低温水进一步冷却作用下,混合气体中液相组份全部被冷凝成为液体组份,上、下冷凝液在冷凝器底部集液槽中集中由输油泵送入储油罐储存待外运;经过冷凝分离单元冷凝分离后的余下气体组份经管道送入可燃气体净化脱水处理后送入干式储气柜储存待用。 [0040] Indirect into the upper horizontal tube chiller condensate separation unit from the pyrolysis unit retorting temperature mixed gas separated via line, under the action of the cooling water, cooling gas mixture, part of the gas is condensed to the condensing temperature reaches the liquid components the remaining gas mixture continues downward, under the action of low temperature cooling water further, parts of the mixed gas is condensed into liquid components of all liquid components, the condensed liquid concentrated in the bottom of the condenser sump into the reservoir by a supply pump storage tank to be sinotrans; condensation separation unit through the remaining parts of the gas component condensate separator via a conduit into the combustible gas into the dehydration treatment the dry purge gas storage cabinets stand.

[0041] 从热解干馏单元分离出来的高温尾砂经管道送入尾砂冷却单元中的双螺旋冷砂装置中,在冷却水作用下降温冷却排出机外,由皮带输送机送至尾砂场待运综合利用;冷却水吸收尾砂显热升温后通过管道送到原料干燥库换热排管系统,加热干燥油砂原料,放出热能降温后由循环水泵经管道送入双螺旋冷砂装置冷却尾砂,如此循环工作。 [0041] Feeding means duplexes sand tailings cooled cooling unit is separated from the pyrolysis temperature pyrolysis unit through a pipe in the tailings, cooled down at a cooling water discharge machine effects, by the belt conveyor to the tailings utilization field to be transported; tailings after sensible heat absorbed by the warmed cooling water feed pipe to the discharge pipe heat exchanger system library was dried, heat-dried oil sand feedstock, the heat released by the cooling water circulating pump through conduit means into the double helix cold sand cooling tailings, so the cycle of work.

[〇〇42] 热解干馏单元的加热介子高温热风由蓄热旋流热风单元提供,从热解干馏单元加热物料降温后的低温热风经热风循环风机加压后由风管送入热风炉内旋流管式换热装置27,在换热管内螺旋片导流下呈旋流流型穿过换热管束2701吸收炉膛热能,升温后经管道送入热解干馏单元加热物料,降温后返回热风炉循环工作。 [〇〇42] meson heating hot pyrolysis temperature pyrolysis unit is provided by a hot cyclone heat storage unit, from the low temperature hot pressurized hot-air circulation fan after carbonization pyrolysis unit heating stove material fed into the cooling duct swirl tube heat exchanger device 27, as a swirling flow pattern through the heat exchange bundle furnace at 2701 absorbent in spiral within the heat transfer tubes, through the conduit into the heating unit for heating the pyrolysis carbonization material, the hot air return cooling furnace cycle work. 其中,热风炉燃烧系统采用蓄热式燃烧工艺。 Wherein stove combustion system uses regenerative combustion process. 当炉内烟气在引风机引力作用下排出炉膛时流经蓄热体29,烟气中显热被蓄热体29充分吸收降温,经管道送入烟®高空排放。 When the off gas discharged in the furnace under the action of gravity induced draft fan 29 flows through the regenerator, the flue gas sensible heat regenerator 29 is cooled sufficiently absorbent, fed via a conduit ® smoke emissions high. 燃烧用新风由鼓风机经管道送入燃烧室34流经蓄热体29时被高温蓄热体29迅速加热膨胀快速进入燃烧室34,与从燃气喷口30 喷入炉内的可燃气体充分混合氧化燃烧、放出热能、加热换热管束2701内的循环热风。 Fresh air into the combustion pipe by a blower 29 via the high-temperature regenerator when the combustion chamber 34 flows through the regenerator 29 is heated rapidly expanded quickly into combustion chamber 34, injected into the furnace with the combustion gas discharge port 30 from the combustible gas mixed oxide , heat energy is released, the hot air heating cycle exchange bundle 2701. 新风、烟气通过四通换向阀35周期循环,经过蓄热体29进、出燃烧室34,保证燃烧室34可燃气充分氧化燃烧,形成稳定均匀的温度场,保证热风温度。 Fresh air, smoke cycles through four-way valve 35, through the regenerator 29 into and out of the combustion chamber 34, combustion chamber 34 can ensure the sufficiently oxidized combustion gas, to form a stable uniform temperature field, to ensure the hot air temperature. 热风炉加热燃料洁净可燃气由本工艺油砂热解干馏分离出来的净化可燃气体供应。 The fuel may be a gas heating stove clean purge gas supply combustible separated by the present process the pyrolysis oil sands retorting.

Claims (10)

  1. 1. 一种联动螺旋回程式油砂干馏工艺系统,包括原料干燥单元、热解干馏单元、蓄热旋流热风单元、冷凝分离单元以及尾砂冷却单元,其特征在于:所述热解干馏单元采用联动螺旋三回程干馏装置,所述联动螺旋三回程干馏装置由加热箱和设于加热箱中的多组相互平行的三回程螺旋机组成,每组三回程螺旋机由首尾相连通且由上至下垂直布置的预热螺旋机、热解螺旋机和干馏螺旋机组成,所述预热螺旋机管体一端设有伸出加热箱壳体上表面的进料口,所述干馏螺旋机管体远离进料口的一端设有伸出加热箱壳体下表面的出料口, 所述预热螺旋机和热解螺旋机之间设有热风导流隔板I,所述热解螺旋机和干馏螺旋机之间设有热风导流隔板II,所述热风导流隔板I、II在加热箱内形成三条首尾相通的上、中、 下热风换热通道,所述加热箱壳体下表面和上表 An interlocking spiral flyback retorting oil sands system comprising a feedstock drying unit, the pyrolysis unit retorting, hot regenerator cyclone unit, the condensing unit and the tailings separated cooling unit, characterized in that: said pyrolysis pyrolysis unit using pyrolysis three return helical linkage means, said linkage means of the pyrolysis coil, three-pass heating tank and heating the tank provided in the plurality of sets of three mutually parallel return helix composed machine, the three return each screw conveyor and connected end to end by the upper pass preheated to a vertical screw conveyor arrangement, pyrolysis and carbonization screw machine screw machine composed of the preheating spiral machine is provided with an end projecting tubular body housing the heating chamber inlet surface, the pyrolysis tube screw conveyor moves away from the feed port provided at one end projecting spout heating tank housing surface, preheating said flow separator is provided with a hot air dryer and I between the spiral screw machine pyrolysis, the pyrolysis screw conveyor and a screw conveyor is provided between the hot pyrolysis flow separator II, the hot air flow separator I, II on the formation of three interlinked end to end, in a hot air heat exchange passages in a heating cabinet, a heating chamber housing and the lower surface of the table 分别设有与热风导流通道相通的进风口和出风口,相邻的两组三回程螺旋机之间沿其轴向设有多根集气坚管,所述集气坚管与其对应的预热螺旋机、热解螺旋机和干馏螺旋机管壳之间分别利用支管连通,各集气坚管顶部伸出加热箱壳体后连接有通向蓄热旋流热风单元或冷凝分离单元的集气横管。 Are provided with a hot air flow passage communicating inlet and outlet, the axial direction between adjacent two of the three screw conveyor is provided with a plurality of return gas collecting tube Kennedy, said manifold tube corresponding pre-Kennedy thermal screw machine, respectively, by using communication between the manifold and the pyrolysis pyrolysis screw machine screw machine shell, each set top gas pipe firmly connected with a rear projecting housing leading to the heat storage tank heating unit or a hot cyclone collector condensation separation unit gas cross tube.
  2. 2. 根据权利要求1所述的联动螺旋回程式油砂干馏工艺系统,其特征在于:所述蓄热旋流热风单元包括热风炉、热风循环风机、燃烧系统鼓、引风机和四通换向阀,所述燃烧室内设有旋流管式换热装置,所述旋流管式换热装置由平行、错列布置的换热管束、设于换热管束两端的连管端板组成,所述换热管束通过两端的连管端板分别与热风炉低温热风入口管路、高温热风出口管路封闭连接并连通,所述高温热风出口管路与联动螺旋三回程干馏装置的进风口相连接,所述低温热风入口管路与热风循环风机出风口相连接,所述热风循环风机的吸风口与联动螺旋三回程干馏装置的出风口相连接形成闭式热风系统,所述热风炉炉体两侧均布置有两组燃烧系统用新风/烟气联箱,同一侧的上、下部两组新风/烟气联箱分别对应换热管束的两端,且新风/烟气联箱与所 The flyback coil linkage retorting oil sand system according to claim 1, wherein: said thermal storage means comprises a cyclone hot stove, hot air circulation blower, combustion system drum, induced draft fan and the four-way selector valve, said combustion chamber is provided with swirl-tube heat exchanger means, said heat exchanger device consists of swirl tube parallel to the wrong exchange bundle arranged in a column, attached exchange bundle disposed at opposite sides of the tube end plate, the Heat exchange bundle and said low-temperature hot stove inlet conduit, an outlet temperature of hot air through a conduit connected to the closed end pipe is connected across each plate and communicating the high-temperature hot air outlet conduit and the three return helical linkage pyrolysis device is connected to the air inlet the low temperature hot air inlet conduit and a hot air circulation fan outlet connected to the suction inlet of the hot air circulation fan in conjunction with three-pass pyrolysis coil outlet means are connected to form a closed hot air system, the furnace hot stove two side are arranged two combustion systems with fresh air / flue gas header, on the same side, the lower portion of the two fresh air / flue gas header corresponding exchange bundle ends, and the fresh air / flue gas header and the 述燃烧室之间分别设置蜂窝式高铝蓄热体作为隔断墙体,每组所述新风/烟气联箱上部分别设有引出箱外的法兰短管,所述四通换向阀的数量为两个且分别布置于热风炉炉体两侧,所述四通换向阀的两个纵向管口分别与同侧的两组新风/烟气联箱的法兰短管相连,四通换向阀的两个横向管口分别与燃烧系统鼓风机的出风口和引风机的吸风口相连,所述燃烧室两侧分别设有燃气喷嘴,所述燃气喷嘴的燃气接口端穿过蜂窝式高铝蓄热体和新风/烟气联箱与外部储气罐相连接。 Are provided between the combustion chambers of said honeycomb regenerator alumina as a partition wall, an upper portion of each of the fresh air / flue gas header pipe are provided with an outer flange short lead box, in the four-way valve two in number and are arranged at both sides of the stove furnace, a four-way valve connected to two longitudinal spout flange are short flue gas header pipe and the two new wind ipsilateral / Stone two lateral valve orifice of the combustion system, respectively blower outlet and the suction draft fan outlet connected to the combustion chamber are respectively provided on both sides of the gas nozzle, the gas nozzle through the gas cellular interface end high aluminum regenerator and fresh air / flue gas header connected with an external storage tank.
  3. 3. 根据权利要求1所述的联动螺旋回程式油砂干馏工艺系统,其特征在于:所述三回程螺旋机的传动机构由分别安装于所述预热螺旋机首部和干馏螺旋机尾部的主动链轮、分别安装于所述预热螺旋机尾部和干馏螺旋机首部的中间链轮、安装于所述热解螺旋机首、 尾部的从动链轮、连接于所述预热螺旋机尾部中间链轮与所述热解螺旋机尾部从动链轮间的传动链条、连接于所述干馏螺旋机首部中间链轮与所述热解螺旋机首部从动链轮间的传动链条组成。 The flyback coil linkage retorting oil sand system according to claim 1, wherein: said actuator screw machine of three-pass the preheater by a screw conveyor are respectively mounted to the active portion and the first end of the pyrolysis screw machine sprockets, are mounted on the intermediate sprocket preheating spiral tail and header machine screw machine pyrolysis, the pyrolysis coil mounted on the first machine, the tail of the driven sprocket connected to said intermediate preheating screw conveyor tail sprocket and the driven sprocket of the drive chain between said aft screw machine pyrolysis, the pyrolysis coil is connected to an intermediate portion of the nose with the sprockets pyrolysis screw conveyor driven sprocket of the drive chain between the first portion.
  4. 4. 根据权利要求1所述的联动螺旋回程式油砂干馏工艺系统,其特征在于:所述预热螺旋机、热解螺旋机和干馏螺旋机的管壳外侧沿其长度方向均匀布置有多组换热筋片,每组换热筋片沿管壳周向均匀分布。 The flyback coil linkage retorting oil sand system according to claim 1, wherein: said outer preheat tube screw conveyor, pyrolysis and carbonization screw machine screw machine shell uniformly disposed along the length thereof a plurality set of heat rib plate, shell and tube heat exchanger along the circumferential rib pieces each uniformly distributed.
  5. 5. 根据权利要求1所述的联动螺旋回程式油砂干馏工艺系统,其特征在于:所述加热箱壳体由内到外依次由耐热不锈钢板、耐热隔热层和Q235钢板组成。 The flyback coil linkage retorting oil sand system according to claim 1, wherein: said heating chamber housing from the inside to outside by a heat-resistant stainless steel, heat-resistant insulating layer composed of steel and Q235.
  6. 6. 根据权利要求1所述的联动螺旋回程式油砂干馏工艺系统,其特征在于:所述联动螺旋三回程干馏设备螺旋总承均匀设有四道滑环。 The flyback coil linkage retorting oil sand system according to claim 1, wherein: said linkage helical spiral three-pass pyrolysis apparatus has four principal homogeneous slip ring.
  7. 7. 根据权利要求1所述的联动螺旋回程式油砂干馏工艺系统,其特征在于:所述进风口与热风导流通道之间设有进风布风箱,所述出风口与热风导流通道之间设有回风布风管。 The flyback coil linkage retorting oil sand system according to claim 1, wherein: the intake air inlet is provided between the bellows cloth and hot air outlet flow passage, said hot air outlet flow passage cloth is provided between the return air duct.
  8. 8. 根据权利要求2所述的联动螺旋回程式油砂干馏工艺系统,其特征在于:所述燃烧室上部两侧分别设有脱硝剂喷嘴。 8. The interlocking coil flyback oil sand pyrolysis process system according to claim 2, wherein: said upper portion of the combustion chamber are respectively provided on both sides of the denitration agent nozzles.
  9. 9. 根据权利要求2所述的联动螺旋回程式油砂干馏工艺系统,其特征在于:所述换热管束采用不锈钢管,且其内设有长螺距螺旋片,所述螺旋片的螺距为l〇〇mm-200mm。 9. The interlocking coil flyback oil sand pyrolysis process system according to claim 2, wherein: said heat exchange tube bundle with stainless steel, and which are equipped with long pitch helical sheet, the pitch of the helical sheet is l 〇〇mm-200mm.
  10. 10. 根据权利要求2所述的联动螺旋回程式油砂干馏工艺系统,其特征在于:所述热风炉外壳采用钢板,壳体内壁设有三层耐火材料构筑的隔热层。 10. The interlocking coil flyback retorting oil sand system according to claim 2, wherein: said stove steel shell, a heat insulating housing wall constructed of the three layers refractory.
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