CN113980697A - High-efficiency needle coke production device and method - Google Patents
High-efficiency needle coke production device and method Download PDFInfo
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- CN113980697A CN113980697A CN202111608834.7A CN202111608834A CN113980697A CN 113980697 A CN113980697 A CN 113980697A CN 202111608834 A CN202111608834 A CN 202111608834A CN 113980697 A CN113980697 A CN 113980697A
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- coking reaction
- tower
- reaction tower
- filter plate
- oil gas
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B55/00—Coking mineral oils, bitumen, tar, and the like or mixtures thereof with solid carbonaceous material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0032—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions using electrostatic forces to remove particles, e.g. electret filters
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
- B01J4/001—Feed or outlet devices as such, e.g. feeding tubes
- B01J4/007—Feed or outlet devices as such, e.g. feeding tubes provided with moving parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2204/00—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices
- B01J2204/005—Aspects relating to feed or outlet devices; Regulating devices for feed or outlet devices the outlet side being of particular interest
Abstract
The invention relates to the technical field of needle coke production, and aims to solve the problems that coke particles are easy to block an equipment pipeline in a coking process and the temperature in the coking process is uneven, in particular to a high-efficiency needle coke production device and a high-efficiency needle coke production method, wherein the device comprises a coking reaction tower, the output end of the coking reaction tower is connected with a purification tower through a pipeline, the side wall of the coking reaction tower is provided with a gas guide pipe, and the inside of a discharge pipe is provided with a discharge mechanism; according to the invention, when high-temperature oil gas circulates in the coking reaction tower, the purification tower and the fractionating tower, the high-temperature oil gas is primarily purified by the purification mechanism each time the high-temperature oil gas is led out from the coking reaction tower, so that the purification pressure of the purification tower is reduced, the high-temperature oil gas in the fractionating tower is ensured not to contain coke particle impurities, and meanwhile, due to the existence of the discharge mechanism, during the internal coking reaction, the raw material is slowly moved, the uniformity of temperature is increased, and the discharge speed is increased by the aid of the discharge mechanism, so that the situation of blocking a discharge pipe is prevented.
Description
Technical Field
The invention relates to the technical field of needle coke production, in particular to a device and a method for producing high-efficiency needle coke.
Background
The needle coke is a high-quality variety developed greatly in carbon materials, the appearance of the needle coke is silver gray and porous solid with metallic luster, the produced needle coke can be divided into two types of petroleum series and coal series according to the used raw materials, the needle coke is a raw material for producing high-end carbon products such as ultrahigh power electrodes, special carbon materials, carbon fibers and composite materials thereof, particularly in the aspect of manufacturing the high-power and ultrahigh power electrodes, the needle coke is a second high-quality material, and the graphite electrode manufactured by the needle coke has the advantages of strong thermal shock resistance, high mechanical strength, good oxidation performance, low electrode consumption, large allowed current density and the like.
The patent document with the publication number of CN203440306U proposes a technical scheme, which is to introduce the high-temperature oil gas escaping from the coking tower into the auxiliary fractionating tower for deslagging fractionation and purification buffering to ensure that excessive coke particles do not appear in the high-temperature oil gas extracted by the section extraction in the main fractionating tower, so that the equipment and pipelines can operate stably for a long time, but in the scheme, the high-temperature oil gas enters the auxiliary fractionating tower for deslagging purification, so that the high-temperature oil gas in the main fractionating tower is purified, and the pipeline from the auxiliary fractionating tower and the coking tower to the auxiliary fractionating tower is subjected to higher pressure; meanwhile, a better temperature rise program is adopted in the scheme, the produced needle coke has a lower thermal expansion coefficient, and can meet the technical requirements of manufacturing high-power electrodes and ultrahigh-power electrodes, but because the amount of raw materials in the coking tower is large, when the heating is carried out, the temperature of the part close to the heating device is firstly raised, then the heat is transferred to each part, and the temperature is raised to reduce the gas density, and finally the temperature of the top of the coking tower is higher than that of the bottom, so that the temperature difference in the coking tower is easily caused, and the yield of the needle coke is influenced.
In view of the above technical problem, the present application proposes a solution.
Disclosure of Invention
The invention aims to provide a device and a method for producing high-efficiency needle coke, aiming at solving the problems that coke particles are easy to block an equipment pipeline in the coking process and the temperature is not uniform in the coking process.
The purpose of the invention can be realized by the following technical scheme:
a production device of high-efficiency needle coke comprises a coking reaction tower, wherein the output end of the coking reaction tower is connected with a purification tower through a pipeline, the purification tower is connected with a fractionating tower through a pipeline, a discharge pipe is fixedly arranged at the bottom end of the coking reaction tower, a feed pipe is arranged at the top end of the coking reaction tower, a gas guide pipe is arranged on the side wall of the coking reaction tower, and a discharge mechanism is arranged in the discharge pipe;
discharge mechanism is including dwang, helical blade, motor and mounting hole, the mounting hole is seted up in the discharging pipe bottom surface, the dwang penetrates from the discharging pipe bottom through the mounting hole, dwang top protrusion in coking reaction tower bottom surface, the first fixed mounting of dwang has helical blade, helical blade top protrusion in coking reaction tower bottom surface, dwang bottom and motor output shaft fixed connection, motor fixed mounting is at the discharging pipe lower surface, dwang outward appearance wall has cup jointed sealed bearing, sealed bearing installs in the clearance of dwang and mounting hole, sealed bearing rotates with the dwang to be connected, the dwang has the sealed cowling with the junction fixed mounting of discharging pipe lower surface.
As a preferred embodiment of the invention, one end of the gas guide tube, which is far away from the coking reaction tower, is fixedly provided with a purification mechanism, one side of the purification mechanism and the gas guide tube are symmetrically provided with pipelines, the bottom end of the purification mechanism is connected with a return tube, one end of the return tube is connected with a collection processing device, and the purification mechanism comprises a filtering mechanism, a cleaning mechanism and a box body shell.
As a preferred embodiment of the invention, the filtering mechanism comprises an air cylinder, a filter plate shell, a clamping block, a sliding rail, a trapping filter plate, a bottom plate and a scraper, wherein the air cylinder is fixedly arranged outside the box body shell, an output shaft of the air cylinder penetrates into the box body shell, the filter plate shell is fixedly arranged at the output end of the air cylinder, the trapping filter plate is fixedly arranged inside the filter plate shell, the scraper is fixedly arranged at the bottom end of the filter plate shell, the bottom plate is fixedly arranged inside the box body shell, the scraper is in sliding connection with the upper surface of the bottom plate, and two ends of the bottom plate are provided with grooves.
As a preferred embodiment of the present invention, the cleaning mechanism includes a support rod, a fixed shaft, a rotating shaft, a mounting seat, a cleaning plate, a slider and a sliding groove, the fixed shaft is fixedly mounted inside the casing of the box body, the top end of the support rod is rotatably connected to the outer wall of the fixed shaft, the rotating shaft is fixedly mounted at a position of the support rod close to the bottom end, the mounting seat is sleeved on the outer wall of the rotating shaft, the cleaning plate is fixedly mounted on the outer wall of the mounting seat, and the slider is fixedly mounted at the bottom end of the support rod.
As a preferred embodiment of the invention, the sliding grooves are formed on two sides of the filter plate shell, the sliding blocks are connected inside the sliding grooves in a clamping mode, and the cleaning plate is connected to the outer wall of the trapping filter plate in a sliding mode.
As a preferred embodiment of the invention, clamping blocks are fixedly mounted on both sides of the top end of the filter plate shell, the clamping blocks are clamped and connected inside the sliding rails, and the two groups of sliding rails are symmetrically arranged on both sides of the inner wall of the box body shell
The use method of the high-efficiency needle coke production device comprises the following steps:
the method comprises the following steps: the refined coal tar soft pitch is pumped out of the raw material tank by a pump, is preheated and then is conveyed to the bottom of a fractionating tower, meanwhile, high-temperature oil gas from a coking reaction tower is conveyed to the other side of the fractionating tower, the refined coal tar soft pitch exchanges heat with the high-temperature oil gas in the fractionating tower to form a mixture of the high-temperature oil gas and the refined coal tar soft pitch, then the mixture is pumped to the coking reaction tower, and the mixture is heated by a heating furnace in the pumping process;
step two: after the mixture of the high-temperature oil gas and the refined coal tar soft pitch enters a coking reaction tower, the coking reaction tower starts to be heated in a staged and ordered manner to promote the coking reaction of the internal raw materials to be carried out, a discharging mechanism at the bottom of the coking reaction tower starts to operate while the temperature is raised, a motor drives a helical blade to rotate through a rotating rod, and the helical blade rotates clockwise at the moment, so that the central part of the internal raw material mixture continuously turns upwards;
step three: when raw materials in the coking reaction tower react, high-temperature oil gas generated in the coking reaction tower escapes from the coking reaction tower through the gas guide tube and enters the purification mechanism, the trapping filter plate in the purification mechanism moves in a reciprocating mode under the pushing of the cylinder to trap coke particles wrapped in the escaped high-temperature oil gas, and the number of the coke particles in the escaped high-temperature oil gas is reduced;
step four: when the cylinder pushes the trapping filter plate to reciprocate, the trapping filter plate drives the cleaning mechanism on the trapping filter plate to move, the cleaning mechanism reciprocates around the fixed shaft to perform circular motion at a certain angle under the extrusion and stretching of the filter plate shell so as to drive the cleaning plate to reciprocate on the filter plate, scrape coke particles on the trapping filter plate, fall down along the return pipe, enter the coking reaction tower, and are re-melted into the raw material mixture after stirring and surging through the discharging mechanism;
step five: the purified high-temperature oil gas is conveyed out from the other end of the purification mechanism, is conveyed to a purification tower through a pipeline for further deslagging and fractionation, and then is conveyed into a fractionating tower for heat exchange with new refined coal tar soft pitch;
step six: after the reaction in the coking reaction tower is finished, the discharging mechanism starts to rotate reversely to push the internal products to be sent out from the bottom of the coking reaction tower.
Compared with the prior art, the invention has the beneficial effects that:
1. when the product in the coking reaction tower is heated, the discharging mechanism arranged at the bottom of the coking reaction tower rotates clockwise, at the moment, the helical blade has a downward precession trend relative to the internal raw material, so that the raw material in the blade gap can be driven to be conveyed upwards, and after the internal raw material is conveyed upwards, a gap is formed in the blade gap, thereby driving the raw materials around to rush into the blade gaps and then to be conveyed upwards by the helical blades, reciprocating in such a way, realizing the billowing circulation of the raw materials in the coking reaction tower, ensuring the same temperature of the raw materials at the deep part and the surface layer, improving the thorough degree of the coking reaction, improving the yield, simultaneously, after the reaction is completed, the raw material in the coking reaction tower can be driven to be conveyed out of the discharging pipe through the anticlockwise rotation of the helical blade, the discharging is accelerated, and the situation that the discharging pipe is blocked by partial solid formed inside is avoided.
2. When the inside high temperature oil gas of coking reaction tower is derived, for avoiding wrapping up in a large amount of the coke particles that hold by the side in the high temperature oil gas of effusion and influencing the stable long-term operation of equipment, increase purification mechanism between the pipeline of high temperature oil gas output, filter the coke particles in the high temperature oil gas through the entrapment filter that carries with static, the effect of tentatively purifying high temperature oil gas has been realized, then the high temperature oil gas after tentatively purifying lets in the purifying column and removes the slag and fractionate, realize further purification, effectively reduce the purifying column and the running pressure of the pipeline that leads to the purifying column from the coking reaction tower, the stability of equipment operation has been increased, the long-term stable operation of equipment has been guaranteed.
3. Carry out the in-process at the filtration of traping the filter, the filter screen can adsorb more and more burnt grain gradually, in order to prevent to trap the filter and accumulate too much burnt grain in the use and influence the result of use, at the in-process of traping the reciprocal promotion of filter, it can periodic extrusion and the bracing piece that pulls clean mechanism to trape the filter, thereby make the clean board of bracing piece front end reciprocating motion about traping the filter, will traping the filter on the absorbent burnt grain scrape down, drop to the bottom plate, and reuse the reciprocating motion of traping the filter, push down the burnt grain on the bottom plate, drop to the collection device in the back flow, the result of use of traping the filter has been guaranteed.
Drawings
In order to facilitate understanding for those skilled in the art, the present invention will be further described with reference to the accompanying drawings.
FIG. 1 is a schematic front view of the structure of the present invention;
FIG. 2 is a schematic side cross-sectional view of the present invention;
FIG. 3 is a schematic structural diagram of a discharging mechanism of the present invention;
FIG. 4 is an enlarged view of the structure at B in FIG. 4 according to the present invention;
FIG. 5 is a schematic view of the purification mechanism of the present invention;
FIG. 6 is a schematic view of the filter mechanism of the present invention;
FIG. 7 is a schematic view of the cleaning mechanism of the present invention;
FIG. 8 is a schematic structural view of the cleaning plate according to the present invention in an operating state;
FIG. 9 is an enlarged view of the structure at A in FIG. 8 according to the present invention;
FIG. 10 is a schematic view of a portion of the process flow of the present invention.
In the figure: 1. a coking reaction tower; 2. an air duct; 3. a discharge pipe; 4. a return pipe; 5. a purification mechanism; 501. a filtering mechanism; 5011. a cylinder; 5012. a filter plate housing; 5013. a clamping block; 5014. a slide rail; 5015. trapping filter plates; 5016. a base plate; 5017. a squeegee; 502. a cleaning mechanism; 5021. a support bar; 5022. a fixed shaft; 5023. a rotating shaft; 5024. a mounting seat; 5025. cleaning the plate; 5026. a slider; 5027. a chute; 503. a case body shell; 6. a discharging mechanism; 601. rotating the rod; 602. a helical blade; 603. a motor; 604. mounting holes; 7. sealing the bearing; 8. a sealing cover; 9. a purification tower; 10. a fractionating column; 11. and (4) feeding a pipe.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood 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.
The first embodiment is as follows:
referring to fig. 1-10, a high-efficiency needle coke production apparatus includes a coking reaction tower 1, an output end of the coking reaction tower 1 is connected to a purifying tower 9 through a pipe for thorough purification and fractionation of high-temperature oil gas to ensure that no coke particles exist in the high-temperature oil gas entering the fractionating tower 10, the purifying tower 9 is connected to the fractionating tower 10 through a pipe, a discharge pipe 3 is fixedly installed at a bottom end of the coking reaction tower 1, the discharge pipe 3 is provided with a valve opening and closing device for controlling the opening and closing of the discharge pipe 3, a feed pipe 11 is disposed at a top end of the coking reaction tower 1, the feed pipe 11 is connected to the fractionating tower 10 for feeding the high-temperature oil gas and refined coal tar soft pitch mixture in the fractionating tower 10 into the coking reaction tower 1, a gas guide tube 2 is disposed on a side wall of the coking reaction tower 1 for circularly discharging the high-temperature oil gas inside the coking reaction tower 1, a discharging mechanism 6 is arranged inside the discharging pipe 3;
the discharging mechanism 6 comprises a rotating rod 601, a helical blade 602 and a motor 603, a mounting hole 604 is formed in the bottom surface of the discharging pipe 3, the rotating rod 601 penetrates from the bottom of the discharging pipe 3 through the mounting hole 604, the top end of the rotating rod 601 protrudes out of the bottom surface of the coking reaction tower 1 and is used for mounting the helical blade 602 and controlling the helical blade 602 to rotate, so as to realize control in processing internal raw materials and discharge assistance after processing, the helical blade 602 is fixedly mounted on the upper half part of the rotating rod 601, the top of the helical blade 602 protrudes out of the bottom surface of the coking reaction tower 1 and is convenient for driving raw materials at the bottom of the coking reaction tower 1 to rotate, the helical blade 602 has a downward precession tendency relative to internal raw materials when the helical blade 602 rotates, so that raw materials in gaps of the helical blade 602 can be driven to be conveyed upwards, and original raw materials in the helical blade 602 are missing after the internal raw materials are conveyed upwards, a gap is formed between two adjacent circles of the spiral blades 602, so that the raw materials around are driven to flow into the gap between two adjacent groups of the spiral blades 602 and are conveyed upwards through the spiral blades 602 again, and the process is repeated in such a way, so that the raw materials are turned over and circulated in the coking reaction tower 1, the temperature of the raw materials in the deep part is ensured to be the same as that of the raw materials on the surface layer, the thorough degree of the coking reaction is improved, the yield is improved, the bottom end of the rotating rod 601 is fixedly connected with an output shaft of the motor 603, the motor 603 adopts a common speed reducer form, the spiral blades 602 rotate at a low speed in the coking reaction tower 1 through reasonably controlling the low rotating speed of the motor 603, the growth and fusion of spherical crystals are prevented from being influenced by the excessively high rotating speed of the spiral blades 602, the smooth coking is ensured, the motor 603 is fixedly installed on the lower surface of the discharging pipe 3, the outer surface wall of the rotating rod 601 is sleeved with a sealing bearing 7, the sealing bearing 7 is installed in the gap between the rotating rod 601 and the installation hole 604, the airtightness between the outer wall of the rotating rod 601 and the inner diameter of the mounting hole 604 is improved, the sealing bearing 7 is rotatably connected with the rotating rod 601, the sealing cover 8 is fixedly arranged at the joint of the rotating rod 601 and the lower surface of the discharge pipe 3, the sealing performance of the sealing bearing 7 and the sealing cover 8 is further enhanced by maintaining the stable air pressure in the sealing cover 8, and the product leakage in the mounting hole 604 is prevented; in addition, after the reaction is completed, the helical blade 602 can rotate anticlockwise to drive the raw material in the coking reaction tower 1 to be conveyed out from the discharge pipe 3, so that the discharge is accelerated, and the situation that the discharge pipe 3 is blocked by partial solid formed inside is avoided.
Example two:
referring to fig. 1, 5-10, a purification mechanism 5 is fixedly installed at one end of the gas guide tube 2 far from the coking reaction tower 1, when the high-temperature oil gas in the coking reaction tower 1 is led out, a large amount of coke particles are wrapped in the escaped high-temperature oil gas, which easily affects the stable and long-term operation of the equipment, the purification mechanism 5 aims to primarily purify the escaped high-temperature oil gas through a physical method, so as to reduce the pressure of deslagging and fractionation of a conveying pipeline and a purification tower 9 at the rear, a pipeline is symmetrically arranged at one side of the purification mechanism 5 and the gas guide tube 2, the pipeline is used for connecting the purification mechanism 5 and the purification tower 9, a return pipe 4 is connected at the bottom end of the purification mechanism 5, one end of the return pipe 4 is connected with a collection processing device, the collected coke particles are centrally processed, the economic benefit is improved, the purification mechanism 5 comprises a filtering mechanism 501, a cleaning mechanism 502 and a box shell 503, the filtering mechanism 501 comprises a cylinder 5011, a filter board housing 5012, a clamping block 5013, a sliding rail 5014, a trapping filter board 5015, a bottom board 5016 and a scraper 5017, wherein the cylinder 5011 is fixedly arranged outside the box housing 503, an output shaft of the cylinder 5011 penetrates into the box housing 503, the filter board housing 5012 is fixedly arranged at the output end of the cylinder 5011 and is used for pushing the filter board housing 5012 to move, the trapping filter board 5015 is fixedly arranged inside the filter board housing 5012, an electrostatic generating device is connected to the trapping filter board 5015, so that static electricity is attached to the trapping filter board 5015, the adsorption force of the trapping filter board 5015 to coke particles is increased through the static electricity, the filtering effect of the trapping filter board 5015 is enhanced, meanwhile, the filter board housing 5012 is made of an insulating material, so that the static electricity only exists on the trapping filter board 5015, the scraper 5017 is fixedly arranged at the bottom end of the filter board housing 5012, the bottom board 5016 is fixedly arranged inside the box housing 503, and the scraper 5017 is connected with the upper surface of the bottom board 5016 in a sliding way, make filter plate housing 5012 when reciprocating motion, can scrape above bottom plate 5016, push the accumulational burnt grain on the bottom plate 5016 to both ends, bottom plate 5016 both ends are all seted up slottedly, make the burnt grain at bottom plate 5016 both ends drop from the groove, and enter back flow 4 and collect, the equal fixed mounting in both sides in filter plate housing 5012 top has fixture block 5013, the fixture block 5013 block is connected inside slide rail 5014, two sets of slide rails 5014 symmetry are seted up in box shell 503 inner wall both sides, guarantee that filter plate housing 5012 and trap filter 5015 keep vertical gesture and stable reciprocating motion, the effect of carrying out preliminary purification to high temperature oil gas has been realized.
Example three:
referring to fig. 1 and 7-10, a purification mechanism 5 is fixedly installed at one end of the gas guide tube 2 far from the coking reaction tower 1, when the high-temperature oil gas in the coking reaction tower 1 is led out, a large amount of coke particles are wrapped in the escaped high-temperature oil gas, which easily affects the stable and long-term operation of the equipment, the purification mechanism 5 aims to primarily purify the escaped high-temperature oil gas through a physical method, so as to reduce the pressure of deslagging and fractionation of a conveying pipeline and a purification tower 9 at the rear, a pipeline is symmetrically arranged at one side of the purification mechanism 5 and the gas guide tube 2, the pipeline is used for connecting the purification mechanism 5 and the purification tower 9, a return pipe 4 is connected at the bottom end of the purification mechanism 5, one end of the return pipe 4 is connected with a collection processing device, the collected coke particles are centrally processed, the economic benefit is improved, the purification mechanism 5 comprises a filtering mechanism 501, a cleaning mechanism 502 and a box shell 503, the filtering mechanism 501 comprises a cylinder 5011, a filter plate housing 5012, a trapping filter plate 5015 and a bottom plate 5016, the filter plate housing 5012 is fixedly installed at the output end of the cylinder 5011, the trapping filter plate 5015 is fixedly installed inside the filter plate housing 5012, coke particles in high-temperature oil gas are trapped and filtered through the trapping filter plate 5015 with static electricity, the cleaning mechanism 502 comprises a supporting rod 5021, a fixing shaft 5022, a rotating shaft 5023, a mounting seat 5024, a cleaning plate 5025, a slider 5026 and a chute 5027, the fixing shaft 5022 is fixedly installed inside a box housing 503, the top end of the supporting rod 5021 is rotatably connected to the outer wall of the fixing shaft 5022, so that the supporting rod 5021 can rotate around the fixing shaft 5022, the rotating shaft 5023 is fixedly installed at a position of the supporting rod 5021 close to the bottom end, the outer wall of the rotating shaft 5023 is sleeved with a mounting seat 5024, the cleaning plate 5025 is fixedly installed on the outer wall of the mounting seat 5024, the slider 5026 is fixedly installed at the bottom end of the supporting rod 5021, the chute 5027 is arranged on two sides of the filter plate housing 5012, slider 5026 block is connected inside spout 5027, make in the reciprocal in-process that promotes of traping filter 5015, traping filter 5015 can periodic extrusion and drag bracing piece 5021 of clean mechanism 502, clean board 5025 sliding connection is at traping filter 5015 outer wall, thereby make the cleaning board 5025 of bracing piece 5021 front end reciprocate from top to bottom on traping filter 5015, scrape the burnt granule of adsorbing on traping filter 5015, drop to bottom plate 5016, and reuse the reciprocating motion of traping filter 5015, push down the burnt granule on bottom plate 5016, drop to collection device in from back flow 4, it is effective to have guaranteed that traping filter 5015 lasts.
Example four:
referring to fig. 1-10, a method for using a high efficiency needle coke production apparatus includes the following steps:
the method comprises the following steps: the refined coal tar soft pitch is pumped out from the raw material tank by a pump, is preheated and then is conveyed to the bottom of a fractionating tower 10, meanwhile, high-temperature oil gas from a coking reaction tower 1 is conveyed to the other side of the fractionating tower 10, the refined coal tar soft pitch exchanges heat with the high-temperature oil gas in the fractionating tower 10 to form a mixture of the high-temperature oil gas and the refined coal tar soft pitch, then the mixture is pumped to the coking reaction tower 1, and the mixture is heated by a heating furnace in the pumping process;
step two: after the mixture of high-temperature oil gas and refined coal tar soft pitch enters a coking reaction tower 1, the coking reaction tower 1 starts to be heated in a staged and ordered manner to promote the coking reaction of internal raw materials to be carried out, a discharging mechanism 6 at the bottom of the coking reaction tower 1 starts to operate while the temperature is raised, a motor 603 drives a helical blade 602 to rotate through a rotating rod 601, and at the moment, the helical blade 602 rotates clockwise, so that the central part of the internal raw material mixture continuously turns upwards;
step three: when the raw materials in the coking reaction tower 1 react, high-temperature oil gas generated inside can escape from the coking reaction tower 1 through the gas guide pipe 2 and enter the purification mechanism 5, the trapping filter plate 5015 in the purification mechanism 5 reciprocates under the pushing of the cylinder 5011 to trap coke particles wrapped in the escaped high-temperature oil gas, and the number of the coke particles in the escaped high-temperature oil gas is reduced;
step four: when the cylinder 5011 pushes the trapping filter plate 5015 to reciprocate, the trapping filter plate 5015 can drive the cleaning mechanism 502 on the trapping filter plate to move, the cleaning mechanism 502 performs reciprocating circular motion around the fixed shaft 5022 at a certain angle under the extrusion and stretching of the filter plate housing 5012, so that the cleaning plate 5025 is driven to reciprocate on the filter plate, coke particles on the trapping filter plate 5015 are scraped off and fall down along the return pipe 4 to enter the coking reaction tower 1, and are re-melted into the raw material mixture through stirring and surge of the discharging mechanism 6;
step five: the purified high-temperature oil gas is conveyed out from the other end of the purification mechanism 5, is conveyed to a purification tower 9 through a pipeline for further deslagging and fractionation, and then is conveyed into a fractionating tower 10 for heat exchange with new refined coal tar soft pitch;
step six: after the reaction in the coking reaction tower 1 is completed, the discharging mechanism 6 starts to rotate reversely, and internal products are pushed to be sent out from the bottom of the coking reaction tower 1.
When the device is used, when high-temperature oil gas circulates in the coking reaction tower 1, the purification tower 9 and the fractionating tower 10, the high-temperature oil gas is primarily purified by the purification mechanism 5 every time the high-temperature oil gas is led out from the coking reaction tower 1, so that the purification pressure of the purification tower 9 is reduced, the high-temperature oil gas in the fractionating tower 10 is ensured not to contain coke particle impurities, the effect is not influenced by the coke particles existing in a foam layer in the subsequent coking stage, equipment and pipelines are not blocked by the coke particles, and meanwhile, due to the existence of the internal discharging mechanism 6, raw materials are slowly moved during the internal coking reaction, the uniformity of temperature is increased, the yield is improved, the discharging speed is increased by the aid of the discharging mechanism 6 during discharging, and the situation that the discharging pipe 3 is blocked is prevented.
The preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (7)
1. The production device of the high-efficiency needle coke comprises a coking reaction tower (1), wherein the output end of the coking reaction tower (1) is connected with a purifying tower (9) through a pipeline, the purifying tower (9) is connected with a fractionating tower (10) through a pipeline, a discharge pipe (3) is fixedly installed at the bottom end of the coking reaction tower (1), a feed pipe (11) is arranged at the top end of the coking reaction tower (1), and a gas guide pipe (2) is arranged on the side wall of the coking reaction tower (1), and is characterized in that a discharge mechanism (6) is arranged inside the discharge pipe (3);
discharge mechanism (6) is including dwang (601), helical blade (602), motor (603) and mounting hole (604), discharging pipe (3) bottom surface is seted up in mounting hole (604), dwang (601) penetrates from discharging pipe (3) bottom through mounting hole (604), dwang (601) top protrusion in coking reaction tower (1) bottom surface, the first fixed mounting of dwang (601) has helical blade (602), helical blade (602) top protrusion in coking reaction tower (1) bottom surface, dwang (601) bottom and motor (603) output shaft fixed connection, motor (603) fixed mounting is at discharging pipe (3) lower surface, dwang (601) exterior wall has cup jointed sealed bearing (7), sealed bearing (7) are installed in the clearance of dwang (601) and mounting hole (604), sealed bearing (7) rotate with dwang (601) and be connected, dwang (601) and the junction fixed mounting of discharging pipe (3) lower surface have sealed cowling (8).
2. The device for producing the high-efficiency needle coke according to claim 1, wherein a purification mechanism (5) is fixedly installed at one end of the gas guide tube (2) far away from the coking reaction tower (1), a pipeline is symmetrically arranged at one side of the purification mechanism (5) and the gas guide tube (2), a return pipe (4) is connected to the bottom end of the purification mechanism (5), one end of the return pipe (4) is connected with a collection processing device, and the purification mechanism (5) comprises a filtering mechanism (501), a cleaning mechanism (502) and a box body shell (503).
3. The apparatus for producing high-efficiency needle coke as claimed in claim 2, the filtering mechanism (501) comprises a cylinder (5011), a filter plate shell (5012), a clamping block (5013), a sliding rail (5014), a trapping filter plate (5015), a bottom plate (5016) and a scraper (5017), the cylinder (5011) is fixedly arranged outside the box body shell (503), the output shaft of the cylinder (5011) penetrates into the box body shell (503), the output end of the cylinder (5011) is fixedly provided with a filter plate shell (5012), the interior of the filter plate shell (5012) is fixedly provided with a trapping filter plate (5015), the bottom end of the filter plate shell (5012) is fixedly provided with a scraper (5017), the bottom plate (5016) is fixedly arranged inside the box body shell (503), the scraper (5017) is in sliding connection with the upper surface of the base plate (5016), and two ends of the base plate (5016) are provided with grooves.
4. The device for producing the high-efficiency needle coke as claimed in claim 3, wherein the cleaning mechanism (502) comprises a supporting rod (5021), a fixed shaft (5022), a rotating shaft (5023), a mounting seat (5024), a cleaning plate (5025) and a slider (5026), the fixed shaft (5022) is fixedly mounted inside the box shell (503), the top end of the supporting rod (5021) is rotatably connected to the outer wall of the fixed shaft (5022), the rotating shaft (5023) is fixedly mounted at a position, close to the bottom end, of the supporting rod (5021), the mounting seat (5024) is sleeved on the outer wall of the rotating shaft (5023), the cleaning plate (5025) is fixedly mounted on the outer wall of the mounting seat (5024), and the slider (5026) is fixedly mounted at the bottom end of the supporting rod (5021).
5. The device for producing high-efficiency needle coke according to claim 4, wherein the filter plate housing (5012) is symmetrically provided with chutes (5027) at both sides, the slider (5026) is connected in the chute (5027) in a clamping manner, and the cleaning plate (5025) is connected to the outer wall of the trapping filter plate (5015) in a sliding manner.
6. The device for producing high-efficiency needle coke as claimed in claim 3, wherein the two sides of the top end of the filter plate housing (5012) are fixedly provided with fixture blocks (5013), the fixture blocks (5013) are clamped and connected inside the slide rails (5014), and the two sets of slide rails (5014) are symmetrically arranged on the two sides of the inner wall of the box housing (503).
7. A method of using the apparatus for producing high efficiency needle coke as claimed in claim 5, comprising the steps of:
the method comprises the following steps: the refined coal tar soft pitch is pumped out of the raw material tank by a pump, is conveyed to the bottom of a fractionating tower (10) after being preheated, meanwhile, high-temperature oil gas from a coking reaction tower (1) is conveyed to the other side of the fractionating tower (10), the refined coal tar soft pitch exchanges heat with the high-temperature oil gas in the fractionating tower (10) to form a mixture of the high-temperature oil gas and the refined coal tar soft pitch, then the mixture is pumped to the coking reaction tower (1), and the mixture is heated by a heating furnace in the pumping process;
step two: after a mixture of high-temperature oil gas and refined coal tar soft pitch enters a coking reaction tower (1), the coking reaction tower (1) starts to be heated in a staged and ordered manner to promote the coking reaction of internal raw materials to be carried out, a discharging mechanism (6) at the bottom of the coking reaction tower (1) starts to operate while the temperature is raised, a motor (603) drives a helical blade (602) to rotate through a rotating rod (601), and at the moment, the helical blade (602) rotates clockwise, so that the central part of the internal raw material mixture is continuously turned upwards;
step three: when raw materials in the coking reaction tower (1) react, high-temperature oil gas generated inside the coking reaction tower escapes from the coking reaction tower (1) through the gas guide pipe (2) and enters the purification mechanism (5), the trapping filter plate (5015) in the purification mechanism (5) reciprocates under the pushing of the cylinder (5011) to capture coke particles wrapped in the escaped high-temperature oil gas, and the number of the coke particles in the escaped high-temperature oil gas is reduced;
step four: when the cylinder (5011) pushes the trapping filter plate (5015) to reciprocate, the trapping filter plate (5015) can drive the cleaning mechanism (502) on the trapping filter plate to move, the cleaning mechanism (502) reciprocates around the fixed shaft (5022) to perform circular motion at a certain angle under the extrusion and stretching of the filter plate shell (5012), so that the cleaning plate (5025) is driven to reciprocate on the filter plate, coke particles on the trapping filter plate (5015) are scraped off, fall along the return pipe (4), and enter another collecting device for centralized treatment;
step five: the purified high-temperature oil gas is conveyed out from the other end of the purification mechanism (5), is conveyed to a purification tower (9) through a pipeline for further deslagging and fractionation, and then is conveyed into a fractionating tower (10) for heat exchange with new refined coal tar soft pitch;
step six: after the reaction in the coking reaction tower (1) is finished, the discharging mechanism (6) starts to rotate reversely to push the internal products to be sent out from the bottom of the coking reaction tower (1).
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| CN113980697B (en) | 2022-04-08 |
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Effective date of registration: 20220728 Address after: 257500 No. 66, Yongxin Road, Shengtuo Town, Kenli District, Dongying City, Shandong Province Patentee after: SHANDONG YUJIA ADVANCED MATERIALS Co.,Ltd. Address before: 257000 No. 77, Yinhai 3rd road, Binhai Industrial Park, Diaokou Township, Dongying Port Economic Development Zone, Dongying City, Shandong Province Patentee before: SHANDONG HUIYU NEW MATERIAL CO.,LTD. |