CN216837823U

CN216837823U - Rotary furnace

Info

Publication number: CN216837823U
Application number: CN202220590317.5U
Authority: CN
Inventors: 彭青松; 杨长军; 邓俊
Original assignee: Sichuan Junhe Environmental Protection Co ltd
Current assignee: Sichuan Junhe Environmental Protection Co ltd
Priority date: 2022-03-16
Filing date: 2022-03-16
Publication date: 2022-06-28
Anticipated expiration: 2032-03-16

Abstract

The utility model discloses a rotary furnace, including rotary drum and returning charge passageway, the returning charge passageway is for fixing the spiral channel spare on the rotary drum inner wall, the returning charge passageway extends to the pan feeding end from the discharge end of rotary drum, and the returning charge passageway walk the material direction with the rotary drum walk the material opposite direction. The rotary furnace utilizes the returning charge passageway of setting on the rotary drum inner wall to realize automatic returning charge, need not to set up extra power unit, moreover, the steam generator is simple in structure, compact, it is with low costs to implement convenient, the high temperature drying mud sediment that returns to rotary drum pan feeding end contacts and mixes with the wet material of oil base detritus that has just added into the rotary drum, reduce material humidity and avoid the material adhesion to take place to stick with paste the wall situation on the outer wall of rotary drum, high temperature drying mud plays the effect of preheating to the wet material of oil base detritus simultaneously, improve heat utilization efficiency, reduce the consumption, improve distillation separation efficiency.

Description

Rotary furnace

Technical Field

The utility model relates to a dry distillation separation processing apparatus technical field especially relates to a rotary furnace.

Background

The separation treatment of the oil-based rock debris is to utilize a rotary furnace to carry out anaerobic distillation separation on petroleum hydrocarbons and water in the oil-based rock debris in an indirect heating mode, a rotary cylinder of the rotary furnace rotates to enable the oil-based rock debris added into the rotary cylinder to advance along the axial direction of the rotary cylinder, the oil-based rock debris is heated outside the rotary cylinder to enable the oil-based rock debris to carry out distillation separation in the advancing process, when the oil-water content of the oil-based rock debris is high, the oil-based rock debris adheres to the inner wall of the rotary cylinder to cause serious wall pasting along with evaporation and secondary condensation of oil and water in the rotary cylinder, the heat transfer efficiency is influenced, and the treatment effect of the distillation separation is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem and the technical task that provides improve prior art, provide a rotary furnace, solve among the prior art oil base detritus and adopt the rotary furnace to take place easily when carrying out the distillation separation and stick with paste the situation of wall, influence heat transfer efficiency, reduce the problem of distillation separation effect.

For solving the above technical problem, the technical scheme of the utility model is that:

the rotary furnace comprises a rotary drum and a material returning channel, wherein the material returning channel is a spiral channel piece fixed on the inner wall of the rotary drum, the material returning channel extends from the discharge end to the feeding end of the rotary drum, and the material feeding direction of the material returning channel is opposite to the material feeding direction of the rotary drum. The rotary furnace of the utility model realizes automatic returning material by utilizing the returning material channel arranged on the inner wall of the rotary drum without arranging an additional power mechanism, has simple and compact structure and low implementation convenience and cost, oil-based detritus wet material enters the rotary drum from the feeding end of the rotary drum, and is subjected to anaerobic distillation separation in the process of advancing along the axial direction of the rotary drum to obtain distilled gas containing water and petroleum hydrocarbon and high-temperature dry sludge, the high-temperature dry sludge is discharged from the discharging end of the rotary drum, because of the existence of the returning material channel, part of the high-temperature dry sludge enters the returning material channel from the feeding port of the returning material channel, the returning material channel synchronously rotates along with the rotary drum, so that the high-temperature dry sludge advances to the feeding end of the rotary drum, and finally the high-temperature dry sludge is discharged to the feeding end of the rotary drum from the discharging port of the returning material channel, and then the high-temperature dry sludge contacts and mixes with the oil-based detritus wet material which is just added into the rotary drum, the water in the whole material can be reduced to the high temperature drying mud sediment and the wet material of oil base detritus, the oil ratio, also reduce humidity promptly, thereby avoid the material adhesion on the outer wall of revolving drum and take place to stick with paste the wall situation, the temperature of high temperature drying mud sediment is higher simultaneously, and the wet material temperature of oil base detritus that just got into the revolving drum is lower, high temperature drying mud sediment plays the effect of preheating to the wet material of oil base detritus, be favorable to the oil base detritus to reach the distillation separation temperature sooner, the heat utilization efficiency is improved, the power consumption is reduced, the distillation separation efficiency is improved.

Furthermore, the material inlet and the material outlet of the material returning channel face to the circumferential direction of the rotary drum, so that high-temperature dry sludge can smoothly enter and exit the material returning channel, and the reliability of material returning is improved.

Furthermore, the calibers of the feeding port and the discharge port of the return channel are larger than the calibers of the channel sections of the return channel, so that sufficient sludge can enter the return channel and be returned to the feeding end of the rotary drum, the wall pasting prevention effect is guaranteed, and oil-based detritus wet materials are effectively preheated.

Furthermore, a feed inlet of the material returning channel is provided with an adjusting valve, and the material returning ratio can be flexibly adjusted according to the requirements of different production processes.

Furthermore, the material returning channel is provided with a plurality of along the circumference of rotary drum at interval, improves the efficiency and the homogeneity of returning charge, and the pan feeding mouth and the discharge gate of returning charge passageway distribute along the circumference of rotary drum, in other words, have a plurality of returning charge entry and returning charge export in the circumference of rotary drum for the mud sediment of high temperature drying can be along the even returning charge of circumference of rotary drum, is favorable to the more abundant even mixture of high temperature drying mud sediment and oil base detritus wet burden, improves and prevents the wall burnt and the effect that preheats to oil base detritus wet burden.

Furthermore, the guide plates are arranged between the two sides of the material returning channel along the axial direction of the rotary drum and the inner wall of the rotary drum respectively, the guide plates are inclined to the axial direction of the rotary drum, the step formed by the material returning channel on the inner wall of the rotary drum is prevented from blocking the advancing of the oil-based rock debris from the feeding end to the discharging end in the rotary drum, the oil-based rock debris is prevented from being remained and accumulated at the step to cause difficulty in cleaning, and the oil-based rock debris can smoothly advance from the feeding end to the discharging end of the rotary drum by the guide plates.

Furthermore, the height of the material returning channel in the radial direction of the rotary drum is 1/10-1/7 of the radius of the rotary drum, so that the phenomenon that a large amount of oil-based rock debris returns to the feeding end of the rotary drum to block normal advancing of the material due to the fact that the height of the material returning channel in the radial direction of the rotary drum is too high is avoided.

Compared with the prior art, the utility model discloses the advantage lies in:

the rotary furnace utilizes the returning charge passageway of setting on the rotary drum inner wall to realize automatic returning charge, need not to set up extra power unit, moreover, the steam generator is simple in structure, it is compact, implement convenient with low costs, the high temperature drying mud sediment that returns to rotary drum pan feeding end contacts and mixes with the wet material of oil base detritus that has just added into the rotary drum, reduce material humidity and avoid the material adhesion to take place to stick with paste the wall situation on the outer wall of rotary drum, high temperature drying mud plays the effect of preheating to the wet material of oil base detritus simultaneously, make partial oil and water just carried out the evaporation separation before the high temperature zone that gets into the rotary drum back end, reduce the distillation load of high temperature zone, improve heat utilization efficiency, reduce the consumption, improve the distillation separation efficiency.

Drawings

FIG. 1 is a schematic view of a rotary kiln;

FIG. 2 is a schematic structural view of a rotary drum;

FIG. 3 is a schematic sectional view of the rotary drum;

FIG. 4 is a schematic cross-sectional structure view of a plurality of material returning channels arranged in a rotary drum;

fig. 5 is a schematic structural view of a guide plate arranged on the outer wall of the material returning channel.

In the figure:

a rotary cylinder 1, a material returning channel 2, a guide plate 3 and a shell 4.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

The embodiment of the utility model discloses a rotary furnace returns the high temperature drying mud sediment of rotary furnace exit end to the rotary furnace entry end to make the wet material of oil base detritus that high temperature drying mud sediment and just got into rotary furnace mix, reduce the water content and the oil content of material in the rotary furnace, effectively improve and stick with paste the wall situation, ensure good heat transfer efficiency, improve the distillation separation effect.

As shown in fig. 1 to 3, a rotary furnace mainly comprises a rotary drum 1 and a material returning channel 2, wherein a shell 4 is surrounded on the periphery of the rotary drum 1, the rotary drum 1 is rotatably arranged in the shell, a space is arranged between the rotary drum 1 and the shell to form a heating cavity, the heating cavity surrounds the whole circumference of the rotary drum 1, a heating system is arranged in the heating cavity to heat the rotary drum 1, so that oil-based rock debris added into the rotary drum 1 is indirectly heated, and further the anaerobic distillation separation of the oil-based rock debris is realized, the rotary drum 1 is a cylinder body with two open ends, the rotary drum 1 is driven by a motor assembly to rotate around the axis thereof, the axis of the rotary drum 1 inclines to the horizontal plane at a certain angle, the higher end of the rotary drum 1 is a feeding end, the lower end of the rotary drum 1 is a discharging end, the oil-based rock debris is added into the rotary drum 1 from the feeding end, under the rotating action of the rotary drum 1, the oil-based detritus advances from the feeding end to the discharging end, the finally obtained mud residue is discharged out of the rotary drum 1 from the discharging end, the material returning channel 2 is a spiral channel piece fixed on the inner wall of the rotary drum 1, the material returning channel 2 extends from the discharging end to the feeding end of the rotary drum 1, and the material feeding direction of the material returning channel 2 is opposite to the material feeding direction of the rotary drum 1, namely, the feeding port of the material returning channel 2 is arranged at the discharging end of the rotary drum, the discharging port of the material returning channel 2 is arranged at the feeding end of the rotary drum, when the rotary drum 1 rotates, a part of mud residue enters the material returning channel 2 from the feeding port, and then is discharged to the feeding end of the rotary drum 1 from the discharging port of the material returning channel 2 under the action of spiral pushing, so that the high-temperature dry mud residue and the oil-based detritus wet detritus are contacted at the feeding end of the rotary drum 1 and are mixed under the rotating action of the rotary drum 1, firstly, reduce the water in the whole material, the oil ratio, thereby reduce the adhesion of material, avoid the material adhesion to take place to stick with paste the wall situation on the inner wall of rotary drum 1, the wall situation is stuck with paste in very big improvement, guarantee heat transfer efficiency, ensure that the material in rotary drum 1 can be heated effectively, and then guarantee distillation separation efficiency and sufficiency, secondly, high temperature drying mud sediment plays the preheating action to the oil base detritus wet burden that just gets into rotary drum 1, improve heat utilization efficiency, make the oil base detritus that just got into rotary drum can heat up to the distillation separation temperature more fast, make the material not get into the high temperature zone just begin to carry out the evaporation of oil, water, reduce the distillation separation load of high temperature zone, improve distillation separation efficiency, reduce the production energy consumption.

In this embodiment, the material inlet and the material outlet of the material returning channel 2 face the circumferential direction of the rotary drum 1, and the material is spirally advanced along with the rotation of the rotary drum, and the material inlet and the material outlet of the material returning channel 2 face the circumferential direction of the rotary drum 1, so that the material can more smoothly enter the material returning channel 2 or be discharged from the material returning channel 2, thereby ensuring smooth material returning and efficiency, wherein the cross section of the material returning channel 2 is rectangular, in other words, the material returning channel 2 is a rectangular pipeline, and the diameters of the material inlet and the material outlet of the material returning channel 2 are larger than the diameter of the channel cross section of the material returning channel 2, thereby ensuring that the sludge can sufficiently and smoothly enter the material returning channel 2 and be discharged from the material returning channel 2, and ensuring the material returning efficiency; the material inlet of the material returning channel 2 can be provided with an adjusting valve, so that the material returning ratio can be flexibly adjusted, and the requirements of different production processes can be met.

In order to improve the uniformity of the returned materials, a plurality of the return material channels 2 are arranged at intervals along the circumferential direction of the rotary drum 1, as shown in fig. 4, three return material channels 2 can be specifically arranged, namely, three spiral channel pieces are arranged on the inner wall of the rotary drum 1, three material returning channels 2 are distributed at intervals along the circumferential direction of the rotary drum, particularly, material inlet ports of the three material returning channels 2 are uniformly distributed at intervals along the circumferential direction of the rotary drum 1 at the material outlet end of the rotary drum 1, and the discharge ports of the three material returning channels 2 are uniformly distributed at intervals along the circumferential direction of the rotary drum 1 at the feeding end of the rotary drum 1, thereby make the mud sediment can evenly carry out the returning charge in the circumference of revolving drum, improve the efficiency of returning charge, ensure that the mud sediment of high temperature drying can be abundant and even with the wet material of oil base detritus and mix, improve the effect of preventing sticking with paste the wall and the effect of preheating to the wet material of oil base detritus.

As shown in fig. 5, a guide plate 3 is arranged between each of two sides of the material returning channel 2 along the axial direction of the rotary drum 1 and the inner wall of the rotary drum 1, and the guide plate 3 is inclined to the axial direction of the rotary drum 1, so that the material can smoothly advance from the feeding end to the discharging end along the axial direction of the rotary drum 1, the material returning channel 2 is prevented from forming a step to block the advance of the material, and the material is prevented from being remained at the step and being difficult to clean. The height of the material returning channel 2 in the radial direction of the rotary drum 1 is 1/10-1/7 of the radius of the rotary drum 1, so that the phenomenon that the height of the material returning channel in the radial direction of the rotary drum is too high and the material which should advance from the feeding end to the discharging end is excessively reversely pushed is avoided, and the material can be smoothly discharged from the discharging end of the rotary drum.

The above is only a preferred embodiment of the present invention, and it should be noted that the above preferred embodiment should not be considered as limiting the present invention, and the protection scope of the present invention should be subject to the scope defined by the claims. It will be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the spirit and scope of the invention, and such modifications and enhancements are intended to be within the scope of the invention.

Claims

1. The rotary furnace is characterized by comprising a rotary drum (1) and a material returning channel (2), wherein the material returning channel (2) is a spiral channel piece fixed on the inner wall of the rotary drum (1), the material returning channel (2) extends to a feeding end from a discharging end of the rotary drum (1), and the material feeding direction of the material returning channel (2) is opposite to the material feeding direction of the rotary drum (1).

2. The rotary kiln according to claim 1, characterized in that the inlet and outlet of the return channel (2) are oriented in the circumferential direction of the rotary drum (1).

3. The rotary kiln according to claim 1, characterized in that the caliber of the inlet and outlet of the return channel (2) is larger than the caliber of the channel cross section of the return channel (2).

4. The rotary kiln according to claim 1, characterized in that the inlet of the return channel (2) is provided with a regulating valve.

5. The rotary kiln according to claim 1, characterized in that the material returning channel (2) is provided in a plurality at intervals along the circumference of the rotary drum (1).

6. The rotary kiln according to any one of claims 1 to 5, characterized in that a guide plate (3) is arranged between each of the two sides of the material returning channel (2) along the axial direction of the rotary drum (1) and the inner wall of the rotary drum (1), and the guide plate (3) is inclined to the axial direction of the rotary drum (1).

7. The rotary kiln according to any one of claims 1 to 5, characterized in that the height of the return channel (2) in the radial direction of the rotary drum (1) is 1/10-1/7 of the radius of the rotary drum (1).