CN213854397U - Crude pyrene oil granulation device and system - Google Patents

Abstract

The invention relates to the technical field of coal gasification, in particular to a crude pyrene oil granulating device and a system, wherein the crude pyrene oil granulating device comprises a shell, one end of a straight cylinder section of the shell is provided with a granulating nozzle, the granulating nozzle comprises an oil inlet pipe, an air inlet pipe for introducing hot air is sleeved outside the oil inlet pipe, and the air outlet direction of the air inlet pipe is arranged towards the axis direction of the oil inlet pipe; the conical section of the shell is provided with an air distribution assembly and a discharge hole. The utility model provides an among the thick pyrene oil prilling granulator, tip through at straight section of thick bamboo sets up the granulation shower nozzle, set up the gas distribution subassembly that provides air conditioning in the toper section, fluid breaks up under the effect of steam and forms the liquid drop, the liquid drop condenses under the effect of air conditioning, form the granule and discharge through the discharge gate, the granulation treatment and the collection to thick pyrene oil have been realized, the phenomenon of fluid condensation blocking equipment and pipeline has effectively been avoided, the long-time continuous stable operation of hydro-gasification has been guaranteed, the rate of recovery and hydro-gasification's of thick pyrene oil economic nature have been improved.

Description

Crude pyrene oil granulation device and system

Technical Field

The utility model relates to a coal gasification technical field especially relates to a crude pyrene oil prilling granulator and system.

Background

The coal hydrogasification oil is produced according to three parts of different condensation temperatures, the overall oil yield is 10%, the crude pyrene oil is firstly produced by condensation and mainly comprises 3-5 rings of macromolecular aromatic hydrocarbon, and the flowability is poor.

Adopt the pipe-line transportation to the tank field after present thick pyrene oil retrieves, for preventing thick pyrene oil condensation and block up equipment and pipeline, need be to the equipment of storing thick pyrene oil, carry the pipeline of thick pyrene oil and carry out the companion's heat preservation, this mode exists that transport and companion's heat pipe are longer, the uneven scheduling problem of local companion's heat, easily cause the phenomenon that thick pyrene oil condensation blocks up equipment and pipeline, the continuous steady operation's of hydrogasification time has been shortened, it is lower to cause the rate of recovery of thick pyrene oil simultaneously, the economic nature that has leaded to hydrogasification descends.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem or at least partially solve the technical problem, the present disclosure provides a crude pyrene oil granulation apparatus and system.

The present disclosure provides a crude pyrene oil granulation apparatus, comprising a housing, the housing comprising a straight barrel section and a conical section, wherein,

a granulation nozzle is arranged at one end, away from the conical section, of the straight cylinder section, the granulation nozzle comprises an oil inlet pipe, an air inlet pipe used for introducing hot air into the shell is sleeved outside the oil inlet pipe, and the air outlet direction of the air inlet pipe is arranged towards the axis direction of the oil inlet pipe;

the conical section deviates from one end of the straight cylinder section and is provided with a discharge hole, and the conical section is provided with an air distribution assembly for introducing cold air into the shell.

In the thick pyrene oil prilling granulator that this disclosure provided, the casing includes straight section of thick bamboo section and toper section, and the tip of straight section of thick bamboo section is provided with the granulation shower nozzle, and thick pyrene oil enters into to the casing through the oil pipe that advances of granulation shower nozzle in, simultaneously, steam lets in to the casing through the intake pipe. Because the intake pipe cover is established in the outside of advancing oil pipe, fluid is in the intraductal flow in-process of oil feed, and steam can carry out the companion heat preservation to advancing oil pipe, prevents effectively that the oil condensation from blockking up advances oil pipe, guarantees to advance unobstructed and the oil feed volume in the casing of oil pipe. And because the air outlet direction of the air inlet pipe is arranged towards the axial direction of the oil inlet pipe, hot air is converged, when oil enters the shell along the axial direction of the oil inlet pipe, the hot air can be sprayed into the shell at a certain speed and is converged and sprayed towards the oil, the oil is effectively scattered into liquid drops and completely wraps the liquid drops, volatile components contained in the liquid drops are volatilized from the liquid drops under the heating action of the hot air, and primary formed particles are formed. Be provided with the gas distribution subassembly that is used for letting in air conditioning in to the casing on the toper section of casing, air conditioning passes through the toper section and enters into to the casing in to the direction motion near the granulation shower nozzle, above-mentioned liquid drop is when not forming preliminary fashioned granule, the liquid drop receives the effort of the direction of cold air by the directional granulation shower nozzle of discharge gate, under the combined action with hot-air, the liquid drop is rotatory in the casing, float, the speed of volatilizing of volatile component has been accelerated, make liquid form preliminary fashioned granule fast. Preliminary fashioned granule moves to the direction that is close to the discharge gate under the action of gravity, moves to the direction of the gas distribution subassembly that is close to cold air promptly, and the cold air concentration in the casing increases, and preliminary fashioned granule is chilled fast by the air conditioning from bottom to top, forms final fashioned granule after granule surface rapid cooling, the shrink, then collects outside discharging to the casing through the discharge gate.

Tip through the straight section of thick bamboo section at the casing sets up the granulation shower nozzle, set up the gas distribution subassembly of air conditioning at the toper section, break up the fluid in the casing under the effect of steam and form the liquid drop, and make the liquid drop condensation under the effect of air conditioning, form a large amount of granules, discharge through the discharge gate so that collect, thereby realized handling and collecting the miniaturation of thick pyrene oil, the phenomenon of the fluid condensation jam equipment and pipeline that leads to through long pipeline transport fluid has effectively been avoided, it can long-time continuous stable operation to have guaranteed hydro-gasification, the rate of recovery of thick pyrene oil has been improved simultaneously, hydro-gasification's economic nature has been improved.

In addition, because thick pyrene oil is collected with the graininess, the convenience of later stage use has been improved to the taking and the use of thick pyrene oil of the later stage of being convenient for.

Optionally, the end face where the oil outlet end of the oil inlet pipe is located and the end face where the air outlet end of the air inlet pipe is located are located on the same plane.

Optionally, be provided with the baffling part in the casing, the outer peripheral face of baffling part with the internal surface laminating of casing, the baffling part is provided with the intercommunication passageway, the intercommunication passageway respectively with the granulation shower nozzle with the discharge gate intercommunication, the axis of intercommunication passageway with the axis of straight section of thick bamboo section is parallel.

Optionally, the ratio of the diameter size of the communication channel to the diameter size of the straight cylinder section ranges from greater than or equal to 0.2 to less than or equal to 0.4.

Optionally, a first guide surface is provided on a side of the baffle member facing the granulating nozzle, for moving the granules between the baffle member and the granulating nozzle in a direction close to the communication channel.

Optionally, a second guide surface is disposed on a side of the deflection member facing away from the granulating nozzle, and is used for moving the granules between the deflection member and the discharge port in a direction away from the communication channel.

Optionally, an included angle between the air outlet direction of the air inlet pipe and the axial direction of the oil inlet pipe is greater than or equal to 15 degrees and less than or equal to 45 degrees.

The utility model also provides a thick pyrene oil granulation system, including tail gas treatment component and above-mentioned thick pyrene oil prilling granulator, tail gas treatment component's inlet end with the straight section of thick bamboo of thick pyrene oil prilling granulator's casing intercommunication, and the intercommunication position is close to the granulation shower nozzle sets up, tail gas treatment component give vent to anger the end with thick pyrene oil prilling granulator's cloth gas subassembly intercommunication.

Optionally, the tail gas treatment assembly comprises a tail gas purification assembly and a tail gas pressurizing fan, the tail gas purification assembly is communicated with the straight cylinder section, the gas inlet end of the tail gas pressurizing fan is communicated with the tail gas purification assembly, and the gas outlet end of the tail gas pressurizing fan is communicated with the gas distribution assembly.

Optionally, a gas cooler is arranged between the tail gas pressurizing fan and the gas distribution assembly.

Optionally, the system further comprises an air supply machine, and the air supply machine is communicated with the gas cooler.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

FIG. 1 is a schematic structural diagram of a crude pyrene oil granulation system according to an embodiment of the disclosure.

Wherein, 10-a crude pyrene oil granulation device; 1-a shell; 11-a straight cylinder section; 12-a conical section; 2-a granulation nozzle; 21-oil inlet pipe; 22-an air inlet pipe; 3-discharging port; 4-gas distribution component; 5-a baffle member; 51-a communication channel; 52-a first guide surface; 53-a second guide surface; 6-a particle collection member;

20-tail gas pressurizing fan; 30-air supplement machine; 40-a gas cooler; 50-a separator; 60-a purifier; 70-dust collector.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

FIG. 1 is a schematic structural diagram of a crude pyrene oil granulation system according to an embodiment of the disclosure. As shown in fig. 1, the embodiment of the present disclosure provides a crude pyrene oil granulation apparatus, which includes a casing 1, where the casing 1 includes a straight cylinder section 11 and a conical section 12, where one end of the straight cylinder section 11, which is far away from the conical section 12, is provided with a granulation nozzle 2, the granulation nozzle 2 includes an oil inlet pipe 21, an air inlet pipe 22 for introducing hot air into the casing 1 is sleeved outside the oil inlet pipe 21, and an air outlet direction of the air inlet pipe 22 is arranged toward an axis direction of the oil inlet pipe 21; one end of the conical section 12 departing from the straight cylinder section 11 is provided with a discharge port 3, and the conical section 12 is provided with an air distribution assembly 4 for introducing cold air into the shell 1.

In the crude pyrene oil granulation device 10 provided by the embodiment of the present disclosure, the casing 1 includes a straight cylinder section 11 and a conical section 12, the end of the straight cylinder section 11 is provided with a granulation nozzle 2, crude pyrene oil enters the casing 1 through an oil inlet pipe 21 of the granulation nozzle 2, and meanwhile, hot gas is introduced into the casing 1 through an air inlet pipe 22. Because the air inlet pipe 22 is sleeved on the outer side of the oil inlet pipe 21, in the process that oil flows in the oil inlet pipe 21, hot air can carry out heat tracing and heat preservation on the oil inlet pipe 21, the oil inlet pipe 21 is effectively prevented from being blocked by oil condensation, and smoothness of the oil inlet pipe 21 and the oil inlet amount in the shell 1 are guaranteed. And because the direction of giving vent to anger of intake pipe 22 sets up towards the axis direction of advancing oil pipe 21 again to make hot gas assemble, when oil entered into casing 1 along the axis direction of advancing oil pipe 21, hot gas can be at certain speed jet and enter casing 1 to assemble the injection towards oil, break up into the liquid drop effectively and wrap up the liquid drop completely with oil, the volatile component that contains in the liquid drop volatilizes from the liquid drop under the heating effect of hot gas, forms the granule of primary forming. Be provided with on casing 1's the toper section 12 and be used for letting in the gas distribution subassembly 4 of air conditioning to casing 1 in, air conditioning passes through toper section 12 and enters into casing 1 in, and move towards the direction that is close to granulation shower nozzle 2, above-mentioned liquid drop is when not forming preliminary fashioned granule, the liquid drop receives the effort of the direction of cold air by discharge gate 3 directional granulation shower nozzle 2, under the combined action with the hot-air, the liquid drop is rotatory in casing 1, it floats, the speed of volatilizing of volatile component has been accelerated, make liquid form preliminary fashioned granule fast. Preliminary shaping particle is to the direction motion that is close to discharge gate 3 under the action of gravity, move to the direction of the gas distribution subassembly 4 that is close to cold air promptly, the cold air concentration in casing 1 increases, preliminary shaping particle is chilled fast by air conditioning from bottom to top, particle surface rapid cooling, form after the shrink have the mobility good, non-stick, different particle diameters, the component all is close with thick pyrene oil, final shaping particle with good component stability, then discharge through discharge gate 3 and collect outside casing 1.

End through straight section of thick bamboo 11 at casing 1 sets up granulation shower nozzle 2, set up the gas distribution subassembly 4 of air conditioning at toper section 12, break up the fluid in casing 1 under the effect of steam and form the liquid drop, and condense the liquid drop under the effect of air conditioning, form a large amount of granules, discharge so that the collection through discharge gate 3, thereby realized the miniaturation to thick pyrene oil and handled and collect, the phenomenon of the fluid condensation jam equipment and pipeline that leads to through long pipeline transport fluid has effectively been avoided, the continuous steady operation for a long time of hydro-gasification has been guaranteed, the rate of recovery of thick pyrene oil has been improved simultaneously, hydro-gasification's economic nature has been improved.

In addition, because thick pyrene oil is collected with the graininess, the convenience of later stage use has been improved to the taking and the use of thick pyrene oil of the later stage of being convenient for.

Specifically, the end surface where the oil outlet end of the oil inlet pipe 21 is located and the end surface where the air outlet end of the air inlet pipe 22 is located are located on the same plane.

The end face where the oil outlet end of the oil inlet pipe 21 is located and the end face where the air outlet end of the air inlet pipe 22 is located are arranged to be flush, so that hot air and oil can be gathered, if the oil outlet end of the oil inlet pipe 21 is located in an inner cavity enclosed by the air inlet pipe 22, the oil can be broken up by the hot air in advance, broken oil drops are slowly accumulated at the air outlet end, and the risk of blocking a nozzle exists; if the oil outlet end of the oil inlet pipe 21 protrudes from the air outlet end of the air inlet pipe 22, the mixing of hot air and oil is delayed, and the spraying distance is increased, so that the height of the granulating device 10 is increased, and the manufacturing cost is increased.

Specifically, an included angle between the air outlet direction of the air inlet pipe 22 and the axial direction of the oil inlet pipe 21 is greater than or equal to 15 degrees and less than or equal to 45 degrees, and the oil outlet direction of the oil inlet pipe 21 is parallel to the air outlet direction of the air inlet pipe 22.

The oil in the oil inlet pipe 21 is sprayed out in a conical shape, which is beneficial to gathering the oil. Because the intake pipe 22 sets up in the outside of advancing oil pipe 21, set up intake pipe 22 into the hot gas of intake pipe 22 and become the coniform blowout, and the direction of giving vent to anger is more than or equal to 15 degrees and be less than or equal to 45 degrees with the axis direction's that advances oil pipe 21 contained angle, make simultaneously advance oil pipe 21 the direction of giving vent to anger parallel with intake pipe 22, be more favorable to more effectively breaking up into the liquid drop with fluid and wrap up the liquid drop completely to improve fluid and break up and the shaping effect. The specific included angle may be selected according to conditions such as oil inlet amount in unit time, and is not limited in this embodiment.

In the granulation sprayer 2, the ratio range of the diameter size of the air inlet pipe 22 to the diameter size of the oil inlet pipe 21 is more than or equal to 2 and less than or equal to 5, so that the scattering effect of hot air on oil liquid in the shell 1 is ensured, and meanwhile, the waste of air and the obstruction of the condensation of liquid drops caused by too much hot air input are avoided.

In some embodiments, a baffle member 5 is arranged in the housing 1, the outer circumferential surface of the baffle member 5 is attached to the inner surface of the housing 1, the baffle member 5 is provided with a communication channel 51, the communication channel 51 is respectively communicated with the granulating nozzle 2 and the discharge port 3, and the axis of the communication channel 51 is parallel to the axis of the straight cylinder section 11.

Because the conical section 12 is provided with the air distribution assembly 4, in the embodiment, the baffle member 5 is arranged in the straight cylinder section 11, the inner cavity of the shell 1 is divided into a granulation area and a cooling area by arranging the baffle member 5, wherein the area between the baffle member 5 and the granulation nozzle 2 is the granulation area, the area between the baffle member 5 and the discharge port 3 is the cooling area, the baffle member 5 is provided with a communication channel 51 for communicating the granulation area and the cooling area, cold air in the cooling area can enter the granulation area through the communication channel 51, liquid drops formed by oil liquid form primary formed particles under the combined action of hot air and cold air, the primary formed particles enter the communication channel 51 under the action of gravity and then enter the cooling area, and because the cold air flows to the granulation area, the movement direction of the primary formed particles is opposite to that of the primary formed particles, the primary formed particles are under the action of quick chilling of the cold air, the surface is cooled rapidly and contracted to form finally-formed particles.

Through setting up baffling part 5, can effectively reduce the granule quantity that moves to the granulation district along with cold air in the cooling zone, effectively avoid the granule to the influence of liquid drop condensation to the yield of granule has been improved.

Specifically, the ratio of the diameter dimension of the communication passage 51 to the diameter dimension of the straight cylinder section 11 ranges from 0.2 or more to 0.4 or less.

The size of the communication channel 51 is set to maintain a ratio to the diameter of the straight cylinder section 11 between 0.2 and 0.4, and a specific ratio may be 0.2, 0.3 or 0.4, which is not limited in this embodiment. Through setting up intercommunication passageway 51, make the granule accessible intercommunication passageway 51 of granulation district move to the cooling space in to further cooling and subsequent collection, with intercommunication passageway 51's size setting in above-mentioned within range, when having guaranteed that the granule can get into the cooling space smoothly, can also guarantee that air conditioning gets into the granulation district smoothly, simultaneously, can effectively reduce the small granule in the cooling space and follow the quantity that air conditioning got into to the granulation district, thereby improved the efficiency that the liquid drop formed preliminary fashioned granule.

The ratio of the length dimension of the communication passage 51 to the height dimension of the housing 1 in the axial direction of the housing 1 is in the range of 0.1 or more and 0.5 or less. In the communicating channel 51, the moving direction of the cold air is opposite to that of the particles, the particles are subject to rapid chilling, so that the surfaces of the particles are rapidly cooled, and the length dimension of the communicating channel 51 is set within the range, so that the cooling effect of the particles in the communicating channel 51 can be effectively ensured.

In order to avoid the formation of a build-up of granules in the granulation zone, the side of the baffle member 5 facing the granulation nozzle 2 is provided with a first guide surface 52 for moving the granules between the baffle member 5 and the granulation nozzle 2 in a direction close to the communication channel 51.

In this embodiment, the first guiding surface 52 is a conical surface, and the inclined direction of the conical surface is the direction from the inner wall of the housing 1 to the communicating channel 51, and is gradually away from the granulating nozzle 2, that is, an inclined plane gradually approaching the cooling area is formed, when the particles formed in the granulating area fall on the conical surface, under the action of self gravity, the particles move along the inclined plane, move into the communicating channel 51 and fall into the cooling area, so that the number of the particles in the granulating area entering the cooling area is increased.

In some embodiments, the side of the deflecting member 5 facing away from the granulation nozzle 2 is provided with a second guide surface 53 for moving the granules between the deflecting member 5 and the discharge opening 3 in a direction away from the communication channel 51.

In the cooling zone, since some of the particles move with the cold air toward the granulation zone during the movement of the cold air toward the granulation zone, by providing the flow deflecting member 5, part of the particles moving with the cold air is blocked by the flow deflecting member 5. After blocking, in order to make the particles far away from the communication channel 51, the surface of the baffle member 5 in the cooling area is provided with a second guide surface 53, and the second guide surface 53 may be a conical surface, and the inclined direction is a direction from the inner wall of the housing 1 to the communication channel 51, and gradually gets away from the discharge port 3, so that the particles at the second guide surface 53 move in a direction far away from the communication channel 51. Further, an air outlet is provided in the casing 1 at a position close to the granulation nozzle 2, and the baffle member 5 is provided to prevent the segregation of the air flow close to the air outlet.

Specifically, the inclined direction of the first guide surface 52 is within an angle range of 15 degrees or more and 75 degrees or less from the horizontal plane direction to ensure that the particles can flow along the first guide surface 52 into the communication passage 51.

In this embodiment, in order to further improve the efficiency of the particles entering the communicating passage 51 and prevent the particles from forming a pile in the granulation zone, the range of the angle between the inclined direction of the first guide surface 52 and the horizontal plane direction is set to be greater than or equal to 30 degrees and less than or equal to 60 degrees.

The range of the angle between the direction of the second guide surface 53 and the horizontal plane is set to be greater than or equal to 15 degrees and less than or equal to 75 degrees, and in order to further prevent the particles from entering the communicating passage 51, the range of the angle between the direction of the second guide surface 53 and the horizontal plane is set to be greater than or equal to 30 degrees and less than or equal to 60 degrees.

The first guide surface 52 and the second guide surface 53 may be inclined in the same direction or in different directions, and are not limited herein.

In some embodiments, the gas distribution assembly 4 comprises a gas distribution chamber and a gas distribution plate, the gas distribution plate is arranged on the conical section 12 of the housing 1, the gas distribution chamber is arranged on the side of the distribution plate facing away from the inner cavity of the housing 1, and the gas in the gas distribution chamber enters the housing 1 through the gas distribution plate.

Specifically, the gas distribution plate is uniformly provided with a plurality of openings to realize uniform gas distribution and contribute to uniform cooling of finally-formed particles. The pore size ranges from greater than or equal to 75 μm and less than or equal to 100 μm. Since the diameter size of the finally formed particles is in the range of 100 μm or more and 300 μm or less, the size of the openings is set to be smaller than the size of the particles in the housing 1 by setting the size of the openings in the above range, so that the particles are effectively prevented from entering the openings of the gas distribution plate and the gas distribution chamber, and the housing 1 is prevented from blocking the gas distribution assembly 4.

The gas distribution chamber is provided with a plurality of gas inlets, for example 2, 3 or 4 gas inlets, to ensure that the distribution chamber can provide sufficient gas to the housing 1.

In some embodiments, a particle collecting part 6 is disposed at the discharge port 3, and the particles are discharged through the discharge port 3 and fall into the particle collecting part 6 to achieve the collection of the particles.

The embodiment of the disclosure also provides a coarse pyrene oil granulation system, including tail gas treatment component and above-mentioned coarse pyrene oil granulation device 10, the inlet end of tail gas treatment component and the straight section of thick bamboo 11 intercommunication of casing 1 of coarse pyrene oil granulation device 10, and the intercommunication position is close to granulation shower nozzle 2 and sets up, and the end of giving vent to anger of tail gas treatment component communicates with the gas distribution subassembly 4 of coarse pyrene oil granulation device 10.

Among the above-mentioned granulation system, among the crude pyrene oil prilling granulator 10, position department that casing 1 is close to granulation shower nozzle 2 is provided with the gas outlet, 11 combustion gas of straight section of thick bamboo section includes steam, volatile component and the tiny particle that the granule that volatilizees in the fluid produced in the generation process, tail gas treatment component and gas outlet intercommunication, volatile component and tiny particle in can being with the 11 combustion gas of straight section of thick bamboo section are got rid of, in order to realize the purification of the 11 combustion gas of straight section of thick bamboo section, reentry to in the gas distribution component 4, with the recycle gas, reduce gaseous waste.

Specifically, the tail gas processing subassembly includes tail gas purification subassembly and tail gas booster fan 20, and the tail gas purification subassembly communicates with straight section of thick bamboo 11, and the inlet end and the tail gas purification subassembly intercommunication of tail gas booster fan 20, the end of giving vent to anger of tail gas booster fan 20 and cloth gas subassembly 4 intercommunication.

After the gas in the shell 1 is discharged into the tail gas purification assembly through the gas outlet, the tail gas purification assembly purifies the gas, then the purified gas passes through the tail gas pressurizing fan 20 to be processed and is charged into the gas distribution assembly 4 again to supply gas to the cooling area, so that the recycling of the gas is realized, and the production cost of coarse pyrene oil particles is reduced.

Specifically, the exhaust gas purification assembly may include a separator 50 and a purifier 60, the separator 50 being in communication with the gas outlet, the purifier 60 being in communication with the separator 50, the separator 50 including a dust outlet, and a dust collector 70 disposed at the dust outlet.

In the above granulation system, since the gas discharged from the casing 1 contains a small amount of fine particles, the gas is introduced into the separator 50, and the gas is subjected to a dust removal treatment to remove the fine particles in the gas. The dedusted gas is fed to a purifier 60 and the dust is fed to a dust collector 70. The gas after purification flows back to the gas distribution component 4 under the pressurization conveying action of the tail gas pressurization fan 20, so that the gas is recycled, and the production cost of coarse pyrene oil particles is reduced.

Specifically, a gas cooler 40 is arranged between the tail gas pressurizing fan 20 and the gas distribution assembly 4, and since the gas distribution assembly 4 provides cold gas into the conical section 12, stable supply of the cold gas in the conical section 12 is ensured by arranging the gas cooler 40 between the tail gas pressurizing fan 20 and the gas distribution assembly 4.

Specifically, a make-up air blower 30 may also be included, the make-up air blower 30 being in communication with the gas cooler 40. In the gas circulation process, there may be leakage points of equipment or pipelines to cause partial loss of gas, and meanwhile, in the process of blanking particles or dust to the particle collection part 6 and the dust collector 70, part of gas is entrained to cause a small amount of loss of gas, so that gas needs to be supplied into the system to ensure the required gas amount, and by arranging the gas supply fan 30, the stability of gas supply in the gas distribution assembly 4 is ensured. In order to ensure that the air provided by the air supply fan 30 is cold air, the air outlet end of the air supply fan 30 is communicated with the air cooler 40.

Specifically, a control component is arranged in the tail gas pipeline before the cold air enters the gas cooler 40 through the air supplement fan 30, and is used for adjusting the air quantity and the air temperature of the cold air provided to the air distribution assembly 4.

It is noted that, in this document, 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. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (11)

1. The crude pyrene oil granulating device is characterized by comprising a shell (1), wherein the shell (1) comprises a straight cylinder section (11) and a conical section (12),

a granulation nozzle (2) is arranged at one end, far away from the conical section (12), of the straight cylinder section (11), the granulation nozzle (2) comprises an oil inlet pipe (21), an air inlet pipe (22) used for introducing hot air into the shell (1) is sleeved outside the oil inlet pipe (21), and the air outlet direction of the air inlet pipe (22) is arranged towards the axis direction of the oil inlet pipe (21);

one end of the conical section (12) departing from the straight cylinder section (11) is provided with a discharge hole (3), and the conical section (12) is provided with an air distribution assembly (4) for introducing cold air into the shell (1).

2. The crude pyrene oil granulation apparatus according to claim 1, wherein the end face of the oil outlet end of the oil inlet pipe (21) and the end face of the air outlet end of the air inlet pipe (22) are located on the same plane.

3. The crude pyrene oil granulation device according to claim 1, wherein a baffle member (5) is arranged in the shell (1), the outer peripheral surface of the baffle member (5) is attached to the inner surface of the shell (1), the baffle member (5) is provided with a communication channel (51), the communication channel (51) is respectively communicated with the granulation nozzle (2) and the discharge port (3), and the axis of the communication channel (51) is parallel to the axis of the straight cylinder section (11).

4. The crude pyrene oil granulation apparatus according to claim 3, wherein a ratio of a diameter dimension of the communication passage (51) to a diameter dimension of the straight barrel section (11) ranges from 0.2 or more to 0.4 or less.

5. The granulation device for crude pyrene oil according to claim 3, wherein a side of said baffle member (5) facing said granulation nozzle (2) is provided with a first guide surface (52) for moving the particles between said baffle member (5) and said granulation nozzle (2) in a direction approaching said communication channel (51).

6. The granulation device for crude pyrene oil according to claim 3, wherein a side of said baffle member (5) facing away from said granulation nozzle (2) is provided with a second guide surface (53) for moving the particles between said baffle member (5) and said discharge port (3) in a direction away from said communication channel (51).

7. The granulation device for crude pyrene oil according to claim 1, wherein an included angle between the gas outlet direction of the gas inlet pipe (22) and the axial direction of the oil inlet pipe (21) is greater than or equal to 15 degrees and less than or equal to 45 degrees.

8. The crude pyrene oil granulation system is characterized by comprising a tail gas treatment component and the crude pyrene oil granulation device (10) as claimed in any one of claims 1 to 7, wherein the gas inlet end of the tail gas treatment component is communicated with a straight cylinder section (11) of a shell (1) of the crude pyrene oil granulation device (10), the communication position of the gas inlet end of the tail gas treatment component is close to the granulation nozzle (2), and the gas outlet end of the tail gas treatment component is communicated with a gas distribution component (4) of the crude pyrene oil granulation device (10).

9. The crude pyrene oil granulation system according to claim 8, wherein the tail gas treatment assembly comprises a tail gas purification assembly and a tail gas pressurizing fan (20), the tail gas purification assembly is communicated with the straight cylinder section (11), an inlet end of the tail gas pressurizing fan (20) is communicated with the tail gas purification assembly, and an outlet end of the tail gas pressurizing fan (20) is communicated with the gas distribution assembly (4).

10. The crude pyrene oil granulation system according to claim 9, wherein a gas cooler (40) is arranged between the tail gas booster fan (20) and the gas distribution assembly (4).

11. The crude pyrene oil granulation system of claim 10, further comprising a make-up air fan (30), wherein the make-up air fan (30) is in communication with the gas cooler (40).

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