CN111925819A - System and method for preparing coal tar and medium-temperature pitch from coal-prepared oil residues - Google Patents

System and method for preparing coal tar and medium-temperature pitch from coal-prepared oil residues Download PDF

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Publication number
CN111925819A
CN111925819A CN202010717942.7A CN202010717942A CN111925819A CN 111925819 A CN111925819 A CN 111925819A CN 202010717942 A CN202010717942 A CN 202010717942A CN 111925819 A CN111925819 A CN 111925819A
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China
Prior art keywords
coal
fixedly connected
liquid
pipe
coal tar
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CN202010717942.7A
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Chinese (zh)
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董建利
董斌
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Inner Mongolia Xiangtai Environmental Technology Co ltd
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Inner Mongolia Xiangtai Environmental Technology Co ltd
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Priority to CN202010717942.7A priority Critical patent/CN111925819A/en
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    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C10G1/002Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal in combination with oil conversion- or refining processes
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10CWORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
    • C10C1/00Working-up tar
    • C10C1/04Working-up tar by distillation
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10CWORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
    • C10C1/00Working-up tar
    • C10C1/04Working-up tar by distillation
    • C10C1/16Winning of pitch
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10CWORKING-UP PITCH, ASPHALT, BITUMEN, TAR; PYROLIGNEOUS ACID
    • C10C3/00Working-up pitch, asphalt, bitumen
    • C10C3/06Working-up pitch, asphalt, bitumen by distillation
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G1/00Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal
    • C10G1/02Production of liquid hydrocarbon mixtures from oil-shale, oil-sand, or non-melting solid carbonaceous or similar materials, e.g. wood, coal by distillation

Abstract

The invention discloses a system and a method for reforming coal tar and medium temperature pitch from coal oil residues, and the system comprises a stirring and distilling all-in-one machine, wherein the stirring and distilling all-in-one machine comprises a case, and a conical heating barrel is rotatably connected to the middle lower part of the inner cavity of the case through a supporting seat fixedly connected with the side wall. This coal system oil dregs reforms system coal tar, system and reforms system method of medium temperature pitch, can realize the screening to the cinder through set up screening mechanism in the case, and set up toper heating bucket cooperation (mixing) shaft and puddler, can realize the stirring of material and mix, toper heating bucket still can heat the distillation simultaneously, and the toper setting of toper heating bucket makes it rotate the in-process at a high speed, can throw away the residue of the last step of process in inside, avoid influencing next step process, will not only a set of stirring compounding equipment and distillation column integration in an equipment, equipment cost and cost of maintenance have not only been reduced, and area has been reduced.

Description

System and method for preparing coal tar and medium-temperature pitch from coal-prepared oil residues
Technical Field
The invention relates to the technical field of coal chemical industry, in particular to a system and a method for reforming coal tar and medium temperature pitch from coal tar residues.
Background
In recent years, the conversion of coal into oil has often appeared in people's lives, which is another big step forward in human science, and the application of high technology has led us to convert coal into oil; the coal-to-liquid is a product produced by scientifically processing coal serving as a raw material. From a chemical point of view, coal-to-liquids are actually an important part of coal chemistry, and are called coal chemical industry. The chemical processes of coal chemical and petrochemical are not the same. Coal chemical industry belongs to the carbon-chemical part, and takes coal as a raw material and coal gas containing one carbon as a raw material to produce related multi-carbon compounds, and sometimes also is a processing process of high molecular compounds. Petrochemical is a process for obtaining novel multi-carbon compounds from multi-carbon compounds by readjustment, cracking or synthesis. From a theoretical point of view, products produced by using petroleum and natural gas as raw materials and a process can be produced by using coal as a raw material and a process of coal chemical industry.
At present, in production processes of coal tar, medium-temperature pitch and the like, stirring equipment is generally used for mixing added materials, distillation equipment is used for distilling and extracting finished products, generally, materials in different procedures are prevented from interfering with each other, more than one set of processing equipment is provided, a plurality of sets of large-scale equipment are used in the whole process, the equipment cost is greatly increased, the maintenance is inconvenient, a large amount of factory building area is occupied, and the production cost is high.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a system for reforming coal tar and medium temperature pitch from coal tar residues and a reforming method thereof, which solve the problems that a plurality of sets of large-scale equipment are used in the whole process, the equipment cost is greatly increased, the maintenance is inconvenient, a large amount of factory area is occupied, and the production cost is high.
In order to achieve the purpose, the invention is realized by the following technical scheme: the system for preparing coal tar and medium-temperature pitch by reforming coal oil residues comprises a stirring and distilling all-in-one machine, wherein the stirring and distilling all-in-one machine comprises a case, a conical heating barrel is rotatably connected to the middle lower part of an inner cavity of the case through a supporting seat fixedly connected with a side wall, waste residue discharge grooves are respectively penetrated through the left side and the right side of the case, the two waste residue discharge grooves are sleeved on the tops of the two sides of the conical heating barrel, the bottom end of the conical heating barrel is rotatably connected with a three-way valve, two outlets of the three-way valve are respectively communicated with a coal liquid discharge pipe and a waste liquid discharge pipe, an infrared electric heating sleeve is sleeved at the middle lower part outside the conical heating barrel, the outer surface of the infrared electric heating sleeve is fixedly connected with the inner wall of the case through a supporting frame, a stirring shaft penetrates through the center of the top of the case, a stirring rod is fixedly, and the top fixedly connected with output of a supporting cylinder and the first motor of puddler top fixed connection, the top from the top down that the left and right sides of machine case just is located the toper heating bucket has run through coal tar distillation column, medium temperature pitch distillation column, parting liquid back flow and annotates the liquid pipe respectively, the top of stirring and distilling all-in-one inner chamber is provided with screening mechanism.
Preferably, the right end of the liquid injection pipe is respectively communicated with an oil washing storage tank and an industrial naphthalene storage tank through pipelines, the bottom end of the coal liquid discharge pipe is communicated with three separators through pipelines, liquid outlet ends of the three separators are communicated with a disc separator through pipelines, the liquid outlet end of the disc separator is communicated with the left end of the separation liquid return pipe through a pipeline, and one ends of the coal tar distillation pipe and the medium temperature pitch distillation pipe are respectively communicated with a coal tar storage tank and a medium temperature pitch tank through pipelines.
Preferably, the inside of waste residue discharge groove is divided into upper and lower two-layer cavity, and the waste residue discharge groove one side outwards is provided with the discharge pipe that is linked together with two-layer cavity respectively, the bottom slope of waste residue discharge groove sets up, and the top fixedly connected with of supporting seat and the anti-skidding cushion of waste residue discharge groove bottom crimping.
Preferably, the top fixedly connected with polylith baffle of toper heating bucket internal surface, the relief hole has all been seted up to the lateral wall of toper heating bucket and the both sides that are located the baffle, and the height of baffle both sides relief hole is corresponding with the two-layer cavity of waste residue discharge tank respectively, the top fixedly connected with of toper heating bucket keeps off the ring.
Preferably, the top on the right side of the inner wall of the case is fixedly connected with a second motor, the bottom end of an output shaft of the second motor is in transmission connection with the bottom end of the conical heating barrel through a belt pulley mechanism, and the right side of the inner wall of the case is fixedly connected with a protective cover outside the second motor.
Preferably, screening mechanism includes the swivel becket of fixed connection in quick-witted incasement wall top, and the inboard rotation of swivel becket is connected with the cover and establishes the outside toper sieve section of thick bamboo of (mixing) shaft, the top fixedly connected with screen cloth of a toper sieve section of thick bamboo, both sides just are located the top of a toper sieve section of thick bamboo and have all seted up the material of getting chamber door around the machine case.
Preferably, the top fixedly connected with cover of a toper sieve section of thick bamboo is established at the outside lower prism pipe of (mixing) shaft, and the outside slip cover of lower prism pipe is equipped with interior prism iron cylinder, the surface of (mixing) shaft just is located prismatic pipe's top fixedly connected with and goes up prismatic pipe down, the top fixedly connected with cover of machine case is established at the outside electro-magnet of (mixing) shaft.
Preferably, the toper hourglass material mouth has been seted up to the bottom of a toper sieve section of thick bamboo, the surface cover of (mixing) shaft is equipped with and keeps off the stopper with toper hourglass material mouth assorted round platform type, the bottom of a toper sieve section of thick bamboo side just is located the top fixedly connected with permanent magnetism hoop that the stopper was kept off to the round platform type, the surface of (mixing) shaft just is located the bottom fixedly connected with dog that the stopper was kept off to the round platform type.
Preferably, the top fixedly connected with feeder hopper of quick-witted case, the top of machine case just is located and has seted up a plurality of feed inlets between feeder hopper and the support section of thick bamboo, the positive fixedly connected with operating panel of machine case, and the equal fixedly connected with landing leg in bottom of machine case both sides, the front side of three-way valve turning handle extends to the front side of machine case.
The invention also discloses a remanufacturing method of a system for remanufacturing coal tar and medium temperature pitch based on the coal-to-liquid oil residue, which specifically comprises the following steps:
step one, feeding and screening: firstly, equipment is electrified, an electromagnet is controlled to be electrified and generate magnetism through an operation panel, an inner prismatic iron cylinder is upwards sucked up to be simultaneously sleeved on an upper prismatic tube and a lower prismatic tube, then a first motor is started, the first motor drives a stirring shaft to rotate, meanwhile, the upper prismatic tube, the inner prismatic iron cylinder and the lower prismatic tube drive a conical screen cylinder to rotate, then, coal cinder is poured into a feeding hopper, the coal cinder is screened by the screen after falling onto the screen, qualified fine coal cinder falls down, a circular table type stopper is pressed down and then leaks into a conical heating barrel, after screening is finished, a circular table type stopper slides upwards under the adsorption of a permanent magnet ring, the bottom of the conical screen cylinder is sealed, then, the electromagnet is powered off, the electromagnet loses magnetism, and the inner prismatic iron cylinder falls down;
step two, washing oil dilution and softening: after the coal cinder falls into the conical heating barrel, starting a pump body of an external pipeline, discharging the washing oil into the conical heating barrel through a liquid injection pipe according to the proportion of 30% washing oil configured for each ton of coal cinder, then starting an infrared electric heating sleeve to heat the conical heating barrel, keeping the temperature at 130 +/-5 ℃ to soften the coal cinder into coal liquid, and driving a stirring shaft and a stirring rod to rotate by the first motor to fully mix the coal cinder and the washing oil;
step three, secondary separation: after mixing for 10-15 minutes, closing the first motor, rotating the three-way valve to a state of conduction of a coal liquid discharge pipe, starting a pump body of a pipeline on the first motor, discharging the coal liquid out of the three separators for primary separation, and then discharging the coal liquid to the disc separator through the pipeline for secondary separation, so that ash in the coal liquid is separated from 23% to 0.15%;
step four, primary deslagging: in the separation process, a second motor is started in the forward direction, the conical heating barrel is driven to rotate in the forward direction through the belt wheel mechanism, residues in the conical heating barrel are thrown out upwards by using centrifugal force, and when the residues slide between the baffles, the residues continuously slide upwards along one side of the baffles under inertia and are discharged into an upper layer cavity of the waste residue discharge groove through the discharge hole at the upper side in the process, then the residues flow out to the two sides, and then the second motor is closed;
step five, proportioning industrial naphthalene: the separated liquid after twice separation is discharged back into the stirring and distilling all-in-one machine again by a corresponding pump body through a separated liquid return pipe, then a pipeline for connecting the wash oil storage tank with the liquid injection pipe is detached, a pipeline for connecting the industrial naphthalene storage tank is connected with the liquid injection pipe, the pump body on the pump body is started, the industrial naphthalene in the industrial naphthalene storage tank is pumped into the conical heating barrel according to the proportion of 2-4%, and the first motor is started again for stirring and mixing;
step six,
1) Distilling coal tar: if the coal tar is to be produced, a valve on a pipeline connecting a coal tar distillation pipe with a coal tar storage tank is opened, oil is heated to 130-180 ℃ through an infrared electric heating sleeve, coal tar steam is distilled out, is discharged through the coal tar distillation pipe, and flows into the coal tar storage tank after being condensed through an external condensation pipe;
2) distilling medium temperature pitch: if the medium-temperature asphalt is to be produced, a valve on a pipeline connecting the medium-temperature asphalt distillation pipe with the medium-temperature asphalt tank is opened, the oil is heated to 270-300 ℃ through an infrared electric heating sleeve, medium-temperature asphalt steam is distilled out, discharged through the medium-temperature asphalt distillation pipe and condensed by an external condenser pipe and flows into the medium-temperature asphalt tank;
seventhly, secondary deslagging: after the distillation is finished, the three-way valve is screwed to a waste liquid discharge pipe in a conducting state, waste liquid discharge treatment is carried out, then according to the four steps of the process, the second motor is reversely started, waste residues are attached to the other side of the baffle plate at last and flow upwards, the waste residues are thrown into a cavity at the lower layer of the waste residue discharge groove from the discharge hole at the lower layer and are discharged, after the processing is finished, the material taking box door is opened, the large coal residues on the screen mesh are taken out, and then the waste residue discharge groove is taken.
Advantageous effects
The invention provides a system and a method for modifying coal tar and medium temperature pitch from coal tar residues. Compared with the prior art, the method has the following beneficial effects:
(1) the system for preparing coal tar and medium temperature pitch from coal oil residues comprises a stirring and distilling integrated machine, wherein a conical heating barrel is rotatably connected at the middle lower part of an inner cavity of the machine case through a supporting seat fixedly connected with a side wall, waste residue discharge grooves are respectively penetrated through the left side and the right side of the machine case, the two waste residue discharge grooves are sleeved at the top parts of the two sides of the conical heating barrel, the bottom end of the conical heating barrel is rotatably connected with a three-way valve, two outlets of the three-way valve are respectively communicated with a coal liquid discharge pipe and a waste liquid discharge pipe, an infrared electric heating sleeve is sleeved at the middle lower part outside the conical heating barrel, the outer surface of the infrared electric heating sleeve is fixedly connected with the inner wall of the machine case through a supporting frame, a stirring shaft is penetrated through the center of the top part of the machine case, a stirring rod is fixedly connected on the surface of the stirring shaft and positioned inside the conical heating barrel, a supporting barrel is fixedly connected with, the left and right sides of machine case and the top from the top down that is located the toper heating bucket has run through respectively the coal tar distillation tube, medium temperature pitch distillation tube, parting liquid back flow and annotates the liquid pipe, the top of stirring distillation all-in-one inner chamber is provided with screening mechanism, can realize the screening to the cinder through setting up screening mechanism in the machine case, and set up toper heating bucket cooperation (mixing) shaft and puddler, can realize that the stirring to the material mixes, the toper heating bucket still can heat the distillation simultaneously, traditional distillation tower has been replaced, and the toper setting of toper heating bucket makes it rotate the in-process at high speed, can throw away the residue of inside last process, avoid influencing next process, will not only a set of stirring and mixing equipment and distillation tower integration in an equipment, equipment cost and cost of maintenance have not only been reduced, and floor area has been reduced, the expenditure has greatly reduced.
(2) The system for preparing coal tar and medium temperature pitch from coal oil residues comprises a case, waste residue discharge grooves are formed in the left side and the right side of the case in a penetrating manner, the two waste residue discharge grooves are sleeved at the tops of the two sides of a conical heating barrel, the interior of each waste residue discharge groove is divided into an upper layer of cavity and a lower layer of cavity, discharge pipes communicated with the two layers of cavities are arranged on the outward side of each waste residue discharge groove respectively, the bottom of each waste residue discharge groove is obliquely arranged, the top of a supporting seat is fixedly connected with an anti-skid rubber pad in compression joint with the bottom of the corresponding waste residue discharge groove, a plurality of baffle plates are fixedly connected to the top of the inner surface of the conical heating barrel, discharge holes are formed in the side wall of the conical heating barrel and positioned on the two sides of each baffle plate, the discharge holes in the two sides of each baffle plate correspond to the two layers of cavities of the corresponding, at the high-speed in-process that rotates of toper heating bucket, its inside residue is under centrifugal force and inertial action, can upwards slide until being thrown away attaching the baffle surface, and at the positive reverse in-process of toper heating bucket, the residue can laminate the different one side of baffle, can realize discharging from the bin outlet of not co-altitude, and the waste residue is discharged and is corresponding in the inslot and set up two-layer cavity, can separately discharge different bin outlet's cavity, can realize the categorised recovery of residue that produces different processes in the toper heating bucket and recycle, need not follow-up extraction separation, the cost is reduced.
(3) The system for preparing coal tar and medium temperature pitch from coal oil residues is characterized in that the screening mechanism comprises a rotating ring fixedly connected above the inner wall of a case, the inner side of the rotating ring is rotatably connected with a conical screen cylinder sleeved outside a stirring shaft, the top of the conical screen cylinder is fixedly connected with a screen, material taking case doors are respectively arranged on the front side and the rear side of the case and positioned at the top of the conical screen cylinder, the top of the conical screen cylinder is fixedly connected with a lower prism tube sleeved outside the stirring shaft, an inner prism iron cylinder is sleeved outside the lower prism tube in a sliding manner, an upper prism tube is fixedly connected on the surface of the stirring shaft and positioned at the top of the lower prism tube, an electromagnet sleeved outside the stirring shaft is fixedly connected at the top of the case, and the screening mechanism is rotatably arranged to electrify a coil of the electromagnet in the screening process to generate magnetic force to upwards adsorb the inner prism iron cylinder, so that the lower prism tube and the upper prism tube can be, and then link together (mixing) shaft and a toper sieve section of thick bamboo, make it realize the screening of rotary type, the screening effect is better, and can realize high-speed joint and separation, need not to use and can reduce motor load after the separation, reduce the consumption, convenient to use.
(4) This coal system oil dregs reforms into coal tar, system of medium temperature pitch, through having seted up the toper drain hole in the bottom of a toper sieve section of thick bamboo, the surface cover of (mixing) shaft is equipped with and keeps off the stopper with toper drain hole assorted round platform type, the bottom of toper sieve section of thick bamboo side just is located the top fixedly connected with permanent magnet hoop that the round platform type kept off the stopper, the surface of (mixing) shaft just is located the bottom fixedly connected with dog that the round platform type kept off the stopper, keep off stopper and permanent magnet hoop through setting up the round platform type in toper sieve section of thick bamboo bottom, in the blanking in-process, the material can keep off the stopper with the round platform type and push down, do not influence the blanking, and after the blanking, the permanent magnet hoop can upwards be inhaled the round platform type and keep off the stopper and seal a toper sieve section of thick bamboo bottom, steam is in a.
Drawings
FIG. 1 is a process flow diagram of the system of the present invention;
FIG. 2 is a front view of the integrated stirring and distilling machine of the present invention;
FIG. 3 is a cross-sectional view of the integrated stirrer-distiller of the present invention;
FIG. 4 is an enlarged view of a portion of the invention at A in FIG. 3;
FIG. 5 is an enlarged view of a portion of the invention at B in FIG. 3;
FIG. 6 is a cross-sectional view of the sifting mechanism of the present invention;
fig. 7 is a top view of the conical heating barrel and the slag discharge chute of the present invention.
In the figure: 1-stirring and distilling integrated machine, 2-case, 3-support base, 4-conical heating barrel, 41-baffle, 42-discharge hole, 43-baffle ring, 5-waste residue discharge groove, 6-three-way valve, 7-coal liquid discharge pipe, 8-waste liquid discharge pipe, 9-infrared electric heating jacket, 10-stirring shaft, 11-stirring rod, 12-support barrel, 13-first motor, 14-coal tar distillation pipe, 15-medium temperature asphalt distillation pipe, 16-separation liquid return pipe, 17-liquid injection pipe, 18-screening mechanism, 181-rotating ring, 182-conical screen barrel, 183-screen mesh, 184-material taking box door, 185-lower prism barrel, 186-inner prism iron barrel, 187-upper prism barrel, 188-electromagnet, 188-electric magnet, 189-circular truncated cone type stopper, 1810-permanent magnet iron ring, 1811-stopper, 19-oil washing storage tank, 20-industrial naphthalene storage tank, 21-three separators, 22-disc separator, 23-coal tar storage tank, 24-medium temperature asphalt tank, 25-discharge pipe, 26-anti-skid rubber mat, 27-second motor, 28-pulley mechanism, 29-shield, 30-feed hopper and 31-operation panel.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, the present invention provides the following technical solutions: the system for preparing coal tar and medium temperature pitch by reforming coal oil residues comprises a stirring and distilling integrated machine 1, wherein the stirring and distilling integrated machine 1 comprises a case 2, the case 2 is square when overlooked, the top of the case 2 is fixedly connected with a feed hopper 30, a plurality of feed inlets are formed in the top of the case 2 and positioned between the feed hopper 30 and a support cylinder 12, the front of the case 2 is fixedly connected with an operation panel 31, the bottoms of the two sides of the case 2 are fixedly connected with support legs, the front side of a rotating handle of a three-way valve 6 extends to the front side of the case 2, the middle lower part of the inner cavity of the case 2 is rotatably connected with a conical heating barrel 4 through a support seat 3 fixedly connected with a side wall, the top of the right side of the inner wall of the case 2 is fixedly connected with a second motor 27, the second motor 27 is a three-phase asynchronous alternating current motor and can rotate forward, a protective cover 29 is fixedly connected to the right side of the inner wall of the case 2 and outside the second motor 27, the protective cover 29 is made of heat insulating material and is used for isolating the influence of high temperature on the second motor 27, the left and right sides of the case 2 are penetrated by the waste residue discharge grooves 5, the two waste residue discharge grooves 5 are sleeved on the top of the two sides of the conical heating barrel 4, the inner part of the waste residue discharge groove 5 is divided into an upper layer cavity and a lower layer cavity, the outer side of the waste residue discharge groove 5 is provided with a discharge pipe 25 respectively communicated with the two layers of cavities, the bottom of the waste residue discharge groove 5 is obliquely arranged, the top of the supporting seat 3 is fixedly connected with an anti-skid rubber pad 26 which is in compression joint with the bottom of the waste residue discharge groove 5, the bottom of the conical heating barrel 4 is rotatably connected with a three-way valve 6, two outlets of the three-way valve 6 are respectively communicated with a coal liquid discharge pipe 7 and, an infrared electric heating sleeve 9 is sleeved at the middle lower part outside the conical heating barrel 4, the outer surface of the infrared electric heating sleeve 9 is fixedly connected with the inner wall of the case 2 through a support frame, a stirring shaft 10 penetrates through the center of the top of the case 2, a stirring rod 11 is fixedly connected on the surface of the stirring shaft 10 and positioned inside the conical heating barrel 4, a support cylinder 12 is fixedly connected at the top of the case 2, a first motor 13 with an output end fixedly connected with the top end of the stirring rod 11 is fixedly connected at the top of the support cylinder 12, a coal tar distillation tube 14, a medium temperature asphalt distillation tube 15, a separation liquid return tube 16 and a liquid injection tube 17 respectively penetrate through the left side and the right side of the case 2 and positioned above the conical heating barrel 4 from top to bottom, the right end of the liquid injection tube 17 is respectively communicated with a washing oil storage tank 19 and an industrial naphthalene storage tank 20 through pipelines, the bottom end of the coal liquid discharge tube, the liquid outlet end of the three-phase separator 21 is communicated with a disc separator 22 through a pipeline, the liquid outlet end of the disc separator 22 is communicated with the left end of a separation liquid return pipe 16 through a pipeline, one end of a coal tar distillation pipe 14 and one end of a medium temperature pitch distillation pipe 15 are respectively communicated with a coal tar storage tank 23 and a medium temperature pitch tank 24 through pipelines, a screening mechanism 18 is arranged above the inner cavity of the stirring and distillation integrated machine 1, screening of coal slag can be realized through the screening mechanism 18 arranged in the machine case 2, the conical heating barrel 4 is arranged to be matched with the stirring shaft 10 and the stirring rod 11 to realize stirring and mixing of materials, meanwhile, the conical heating barrel 4 can also carry out heating and distillation to replace the traditional distillation tower, and the conical arrangement of the conical heating barrel 4 can throw out residues of the previous process in the high-speed rotation process, so as to avoid influencing the next process, more than one group of stirring and mixing equipment and the distillation tower are integrated in, not only reduces the equipment cost and the maintenance cost, but also reduces the occupied area and greatly reduces the expenditure.
The top of the inner surface of the conical heating barrel 4 is fixedly connected with a plurality of baffle plates 41, the side wall of the conical heating barrel 4 and two sides of the baffle plates 41 are respectively provided with a discharge hole 42, the heights of the discharge holes 42 at the two sides of the baffle plates 41 respectively correspond to two layers of cavities of the waste residue discharge groove 5, the top of the conical heating barrel 4 is fixedly connected with a baffle ring 43, different discharge holes 42 at the two sides of the conical heating barrel are separated by arranging the baffle plates 41 on the inner wall of the conical heating barrel 4, residues in the conical heating barrel 4 can slide upwards under the centrifugal force and the inertia effect in the high-speed rotation process until the residues are thrown out by being attached to the surfaces of the baffle plates 41, the residues can be attached to different surfaces of the baffle plates 41 in the positive and negative rotation process of the conical heating barrel 4, the discharge from the discharge holes 42 with different heights can be realized, two layers of cavities are correspondingly arranged in the waste, the method can realize classification recycling of residues generated in different processes in the conical heating barrel 4, does not need subsequent extraction and separation, and reduces cost.
The screening mechanism 18 comprises a rotating ring 181 fixedly connected above the inner wall of the case 2, the inner side of the rotating ring 181 is rotatably connected with a conical screen cylinder 182 sleeved outside the stirring shaft 10, the top of the conical screen cylinder 182 is fixedly connected with a screen 183, the front side and the rear side of the case 2 and the top of the conical screen cylinder 182 are both provided with a material taking box door 184, the top of the conical screen cylinder 182 is fixedly connected with a lower prism tube 185 sleeved outside the stirring shaft 10, the outer part of the lower prism tube 185 is slidably sleeved with an inner prism iron cylinder 186, the surface of the stirring shaft 10 and the top of the lower prism tube 185 are fixedly connected with an upper prism tube 187, the top of the case 2 is fixedly connected with an electromagnet 188 sleeved outside the stirring shaft 10, the screening mechanism 18 is rotatably arranged, a coil of the electromagnet 188 is electrified in the screening process to generate magnetic force to upwards adsorb the inner prism iron cylinder 186, so that the lower prism tube 185 and the upper prism tube 187 can be sleeved at, furthermore, the stirring shaft 10 is connected with the conical screen cylinder 182, so that the rotary screening can be realized, the screening effect is better, the quick connection and separation can be realized, the motor load can be reduced after the separation without using, the power consumption is reduced, the use is convenient, the conical material leakage port is arranged at the bottom of the conical screen cylinder 182, the circular table type stopper 189 matched with the conical material leakage port is sleeved on the surface of the stirring shaft 10, the permanent magnet ring 1810 is fixedly connected at the bottom of the side surface of the conical screen cylinder 182 and above the circular table type stopper 189, the stopper 1810 is fixedly connected on the surface of the stirring shaft 10 and at the bottom of the circular table type stopper 189, the circular table type stopper 189 and the permanent magnet ring 1810 are arranged at the bottom of the conical screen cylinder 182, the circular table type stopper 189 can be pushed down by the material in the blanking process without influencing, and after the blanking is finished, the permanent magnet ring can suck the circular table type stopper 189 upwards to seal the bottom of the conical screen cylinder 182, avoid a large amount of steam to diffuse away during the distillation, simple structure is practical.
The invention also discloses a remanufacturing method of a system for remanufacturing coal tar and medium temperature pitch based on the coal-to-liquid oil residue, which specifically comprises the following steps:
step one, feeding and screening: firstly, the equipment is electrified, the electromagnet 188 is controlled to be electrified and generate magnetism through the operation panel 31, the inner prism iron cylinder 186 is upwards attracted, the upper prism tube 187 and the lower prism tube 185 are simultaneously sleeved with the inner prism iron cylinder 186, then the first motor 13 is started, the first motor 13 drives the stirring shaft 10 to rotate, the upper prism tube 187, the inner prism iron cylinder 186 and the lower prism tube 185 are simultaneously utilized to drive the conical screen cylinder 182 to rotate, coal cinder is poured into the feed hopper 30 and is screened by the screen 183 after falling onto the screen 183, qualified fine coal cinder falls down, the circular table type blocking plug 189 is pressed down and then leaks into the conical heating barrel 4, after screening is finished, the circular table type blocking plug 189 upwards slides under the adsorption of the permanent magnet ring 1810, the bottom of the conical screen cylinder 182 is sealed, then the electromagnet 188 is disconnected to supply power, the electromagnet 188 loses magnetism, and the inner prism iron cylinder 186 falls down;
step two, washing oil dilution and softening: after the coal cinder falls into the conical heating barrel 4, starting a pump body of an external pipeline, discharging the washing oil into the conical heating barrel 4 through a liquid injection pipe 17 according to the proportion of 30% washing oil configured for each ton of the coal cinder, then starting an infrared electric heating sleeve 9 to heat the conical heating barrel 4, keeping the temperature at 130 +/-5 ℃ to soften the coal cinder into coal liquid, and driving a stirring shaft 10 and a stirring rod 11 to rotate by keeping a first motor 13 still working to fully mix the coal cinder and the washing oil;
step three, secondary separation: after mixing for 10-15 minutes, closing the first motor 13, rotating the three-way valve 6 to a state of conduction of the coal liquid discharge pipe 7, starting a pump body of a pipeline on the three-way valve, discharging the coal liquid into the three-way separator 21 for primary separation, and then discharging the coal liquid into the disc separator 22 through the pipeline for secondary separation, so that ash in the coal liquid is separated from 23% to 0.15%;
step four, primary deslagging: in the separation process, the second motor 27 is started in the forward direction, the belt wheel mechanism 28 drives the conical heating barrel 4 to rotate in the forward direction, the residue in the conical heating barrel 4 is thrown out upwards by using centrifugal force, when the residue slides between the baffle plates 41, the residue slides upwards along one side of the baffle plates 41 under inertia, and is discharged into the upper-layer cavity of the waste residue discharge groove 5 through the upper-side discharge hole 42 in the process, then flows out towards two sides, and then the second motor 27 is closed;
step five, proportioning industrial naphthalene: the separated liquid after twice separation is discharged back into the stirring and distilling all-in-one machine 1 again through a separated liquid return pipe 16 by a corresponding pump body, then a pipeline for connecting a wash oil storage tank 19 with a liquid injection pipe 17 is detached, a pipeline for connecting an industrial naphthalene storage tank 20 is connected with the liquid injection pipe 17, the pump body on the pump body is started, industrial naphthalene in the industrial naphthalene storage tank 20 is pumped into a conical heating barrel 4 according to the proportion of 2-4%, and the first motor 13 is started again for stirring and mixing;
step six,
1, distilling coal tar: if the coal tar is to be produced, a valve on a pipeline connecting the coal tar distillation pipe 14 with the coal tar storage tank 23 is opened, the oil is heated to 130-180 degrees through the infrared electric heating jacket 9, coal tar steam is distilled out, is discharged through the coal tar distillation pipe 14, and flows into the coal tar storage tank 23 after being condensed through an external condensation pipe;
2, distilling medium-temperature pitch: if the medium-temperature asphalt is to be produced, a valve on a pipeline connecting the medium-temperature asphalt distillation pipe 15 with the medium-temperature asphalt tank 24 is opened, the oil is heated to 270-300 ℃ through the infrared electric heating sleeve 9, medium-temperature asphalt steam is distilled out, is discharged through the medium-temperature asphalt distillation pipe 15, is condensed through an external condenser pipe and then flows into the medium-temperature asphalt tank 24;
seventhly, secondary deslagging: after the distillation is finished, the three-way valve 6 is screwed to the waste liquid discharge pipe 8 to be in a conducting state, waste liquid is discharged and treated, then the second motor 27 is reversely started according to the four steps, waste residues are attached to the other side of the baffle 41 finally, flow upwards and are thrown into the lower cavity of the waste residue discharge groove 5 from the lower discharge hole 42 to be discharged, after the processing is finished, the material taking box door 184 is opened to take out large coal residues on the screen 183, and then the waste residue discharge groove 5 is drawn out from two sides to be cleaned.
And those not described in detail in this specification are well within the skill of those in the art.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (10)

1. System of coal tar, medium temperature pitch are reformed transform to coal system oil residue, including stirring distillation all-in-one (1), its characterized in that: the stirring and distilling integrated machine (1) comprises a case (2), wherein a conical heating barrel (4) is rotatably connected to the middle lower part of the inner cavity of the case (2) through a supporting seat (3) fixedly connected with a side wall, waste residue discharge grooves (5) are respectively penetrated through the left side and the right side of the case (2), the two waste residue discharge grooves (5) are sleeved at the tops of the two sides of the conical heating barrel (4), a three-way valve (6) is rotatably connected to the bottom end of the conical heating barrel (4), two outlets of the three-way valve (6) are respectively communicated with a coal liquid discharge pipe (7) and a waste liquid discharge pipe (8), an infrared electric heating sleeve (9) is sleeved at the middle lower part of the outer part of the conical heating barrel (4), the outer surface of the infrared electric heating sleeve (9) is fixedly connected with the inner wall of the case (2) through a supporting frame, and a stirring shaft (10), the surface of (mixing) shaft (10) just is located inside fixedly connected with puddler (11) of toper heating bucket (4), the top fixedly connected with of machine case (2) supports a section of thick bamboo (12), and supports top fixedly connected with output and puddler (11) top fixed connection's of a section of thick bamboo (12) first motor (13), the top from the top down that both sides just are located toper heating bucket (4) about machine case (2) has run through coal tar distillation column (14), medium temperature pitch distillation column (15), separator back flow (16) respectively and has annotated liquid pipe (17), the top of stirring distillation all-in-one (1) inner chamber is provided with screening mechanism (18).
2. The system for preparing coal tar and medium-temperature pitch from coal-to-liquid oil residues according to claim 1, characterized in that: the right end of the liquid injection pipe (17) is respectively communicated with an oil washing storage tank (19) and an industrial naphthalene storage tank (20) through pipelines, the bottom end of the coal liquid discharge pipe (7) is communicated with three separators (21) through pipelines, liquid outlet ends of the three separators (21) are communicated with a disc separator (22) through pipelines, the liquid outlet end of the disc separator (22) is communicated with the left end of a separation liquid return pipe (16) through a pipeline, and one ends of the coal tar distillation pipe (14) and the medium temperature pitch distillation pipe (15) are respectively communicated with a coal tar storage tank (23) and a medium temperature pitch tank (24) through pipelines.
3. The system for preparing coal tar and medium-temperature pitch from coal-to-liquid oil residues according to claim 1, characterized in that: the inside of waste residue discharge groove (5) is divided into two-layer cavity about, and waste residue discharge groove (5) one side outwards is provided with discharge pipe (25) that are linked together with two-layer cavity respectively, the bottom slope of waste residue discharge groove (5) sets up, and the top fixedly connected with of supporting seat (3) and anti-skidding cushion (26) of waste residue discharge groove (5) bottom crimping.
4. The system for preparing coal tar and medium-temperature pitch from coal-to-liquid oil residues according to claim 1, characterized in that: top fixedly connected with polylith baffle (41) of toper heating bucket (4) internal surface, relief hole (42) have all been seted up to the lateral wall of toper heating bucket (4) and the both sides that are located baffle (41), and the height of baffle (41) both sides relief hole (42) is corresponding with the two-layer cavity of waste residue discharge tank (5) respectively, the top fixedly connected with of toper heating bucket (4) keeps off ring (43).
5. The system for preparing coal tar and medium-temperature pitch from coal-to-liquid oil residues according to claim 1, characterized in that: the top fixedly connected with second motor (27) on machine case (2) inner wall right side, and pass through belt pulley mechanism (28) transmission connection between the bottom of second motor (27) output shaft and the bottom of toper heating bucket (4), the outside fixedly connected with guard shield (29) that just is located second motor (27) on the right side of machine case (2) inner wall.
6. The system for preparing coal tar and medium-temperature pitch from coal-to-liquid oil residues according to claim 1, characterized in that: screening mechanism (18) include swivel becket (181) of fixed connection in quick-witted case (2) inner wall top, and the inboard of swivel becket (181) is rotated and is connected with the cover and establish a toper sieve section of thick bamboo (182) outside (mixing) shaft (10), the top fixedly connected with screen cloth (183) of a toper sieve section of thick bamboo (182), material taking box door (184) have all been seted up at the top that both sides just are located a toper sieve section of thick bamboo (182) around quick-witted case (2).
7. The system for preparing coal tar and medium-temperature pitch from coal-to-liquid oil residues according to claim 6, wherein: the top fixedly connected with cover of a toper sieve section of thick bamboo (182) is established at the outside lower prism pipe (185) of (mixing) shaft (10), and the outside slip cover of lower prism pipe (185) is equipped with interior prism iron drum (186), prism pipe (187) on the surface of (mixing) shaft (10) and the top fixedly connected with that is located lower prism pipe (185), top fixedly connected with cover of quick-witted case (2) is established at the outside electro-magnet (188) of (mixing) shaft (10).
8. The system for preparing coal tar and medium-temperature pitch from coal-to-liquid oil residues according to claim 6, wherein: the bottom of a toper sieve section of thick bamboo (182) has been seted up the toper drain hole, the surface cover of (mixing) shaft (10) is equipped with and keeps off stopper (189) with toper drain hole assorted round platform type, the bottom of a toper sieve section of thick bamboo (182) side just is located the round platform type and keeps off top fixedly connected with permanent magnet ring (1810) of stopper (189), the surface of (mixing) shaft (10) just is located the round platform type and keeps off bottom fixedly connected with dog (1811) of stopper (189).
9. The system for preparing coal tar and medium-temperature pitch from coal-to-liquid oil residues according to claim 1, characterized in that: the top fixedly connected with feeder hopper (30) of quick-witted case (2), a plurality of feed inlets have been seted up at the top of quick-witted case (2) and between being located feeder hopper (30) and supporting cylinder (12), the positive fixedly connected with operating panel (31) of quick-witted case (2), and the equal fixedly connected with landing leg in bottom of quick-witted case (2) both sides, the front side of three-way valve (6) turning handle extends to the front side of quick-witted case (2).
10. The remanufacturing method of the system for remanufacturing the coal tar and the medium temperature pitch based on the coal oil residue is characterized in that: the method specifically comprises the following steps:
step one, feeding and screening: firstly, the equipment is electrified, the electromagnet (188) is controlled to be electrified and generate magnetism through the operation panel (31), the inner prism iron cylinder (186) is upwards sucked up to be sleeved on the upper prism tube (187) and the lower prism tube (185) at the same time, then the first motor (13) is started, the first motor (13) drives the stirring shaft (10) to rotate, meanwhile, the upper prism tube (187), the inner prism iron cylinder (186) and the lower prism tube (185) drive the conical screen cylinder (182) to rotate, then, the coal slag is poured into the feeding hopper (30), the coal slag is screened after falling onto the screen mesh (183), the qualified coal slag falls, the circular table type blocking plug (189) is pressed downwards and then leaks into the conical heating barrel (4), after screening is finished, the circular table type blocking plug (189) slides upwards under the adsorption of the permanent magnet ring (1810), the bottom of the conical screen cylinder (182) is sealed, then the electromagnet (188) is disconnected for supplying power, the electromagnet (188) loses magnetism, and the inner prism iron cylinder (186) falls down;
step two, washing oil dilution and softening: after the coal slag falls into the conical heating barrel (4), starting a pump body of an external pipeline, discharging the washing oil into the conical heating barrel (4) through a liquid injection pipe (17) according to the proportion of 30% washing oil configured for each ton of the coal slag, then starting an infrared electric heating sleeve (9) to heat the conical heating barrel (4), keeping the temperature at 130 degrees +/-5 degrees to soften the coal slag into coal liquid, and driving a stirring shaft (10) and a stirring rod (11) to rotate to fully mix the coal slag and the washing oil at the moment when a first motor (13) still works;
step three, secondary separation: after mixing for 10-15 minutes, closing the first motor (13), rotating the three-way valve (6) to a conducting state of the coal liquid discharge pipe (7), starting a pump body of a pipeline on the three-way valve, discharging the coal liquid into the three-way separator (21) for primary separation, then discharging the coal liquid into the disc separator (22) through the pipeline for secondary separation, and separating ash in the coal liquid from 23% to 0.15%;
step four, primary deslagging: in the separation process, a second motor (27) is started in the forward direction, the conical heating barrel (4) is driven to rotate forward through the belt wheel mechanism (28), residues in the conical heating barrel (4) are thrown out upwards by centrifugal force, when the residues slide between the baffle plates (41), the residues continuously slide upwards along one side of the baffle plates (41) under inertia, are discharged into an upper-layer cavity of the waste residue discharge groove (5) through the upper-side discharge hole (42) in the process, then flow out towards two sides, and then the second motor (27) is closed;
step five, proportioning industrial naphthalene: the separated liquid after twice separation is discharged back into the stirring and distilling all-in-one machine (1) again by a corresponding pump body through a separated liquid return pipe (16), then a pipeline for connecting a wash oil storage tank (19) with a liquid injection pipe (17) is detached, a pipeline for connecting an industrial naphthalene storage tank (20) is connected with the liquid injection pipe (17), the pump body on the pump body is started, industrial naphthalene in the industrial naphthalene storage tank (20) is pumped into a conical heating barrel (4) according to the proportion of 2% -4%, and a first motor (13) is started again for stirring and mixing;
step six,
1) Distilling coal tar: if the coal tar is to be produced, a valve on a pipeline connecting a coal tar distillation pipe (14) with a coal tar storage tank (23) is opened, oil is heated to 130-180 degrees through an infrared electric heating sleeve (9), coal tar steam is distilled out, is discharged through the coal tar distillation pipe (14), and flows into the coal tar storage tank (23) after being condensed through an external condenser pipe;
2) distilling medium temperature pitch: if the medium-temperature asphalt is to be produced, a valve on a pipeline connecting the medium-temperature asphalt distillation pipe (15) with the medium-temperature asphalt tank (24) is opened, the oil is heated to 270-300 ℃ through an infrared electric heating sleeve (9), medium-temperature asphalt steam is distilled out and discharged through the medium-temperature asphalt distillation pipe (15), and flows into the medium-temperature asphalt tank (24) after being condensed by an external condenser pipe;
seventhly, secondary deslagging: after the distillation is finished, the three-way valve (6) is screwed to a waste liquid discharge pipe (8) in a conducting state, waste liquid is discharged and treated, then according to the four steps, the second motor (27) is reversely started, waste residues are attached to the other side of the baffle (41) at last and flow upwards, the waste residues are thrown into a lower cavity of the waste residue discharge groove (5) from the lower discharge hole (42) and are discharged, after the processing is finished, the material taking box door (184) is opened to take out large coal residues on the screen mesh (183), and then the waste residue discharge groove (5) is taken out from two sides to be cleaned.
CN202010717942.7A 2020-07-23 2020-07-23 System and method for preparing coal tar and medium-temperature pitch from coal-prepared oil residues Withdrawn CN111925819A (en)

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JPS578286A (en) * 1980-06-18 1982-01-16 Electric Power Dev Co Ltd Liquefaction of brown coal
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS578286A (en) * 1980-06-18 1982-01-16 Electric Power Dev Co Ltd Liquefaction of brown coal
CN208275033U (en) * 2018-03-15 2018-12-25 南昌金轩科技有限公司 It is a kind of can serialization distillation, row residue distilling apparatus
CN108611114A (en) * 2018-05-31 2018-10-02 山西豪仑科化工有限公司 A kind of method of coal liquifaction dregs of fat extraction
CN109045555A (en) * 2018-09-18 2018-12-21 兰凤 A kind for the treatment of process of organosilicon slag slurry

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Application publication date: 20201113