CN210506003U

CN210506003U - Oil sludge pyrolysis machine

Info

Publication number: CN210506003U
Application number: CN201920910901.2U
Authority: CN
Inventors: 李建伟
Original assignee: Zhengzhou Hongyuan Petrochemical Equipment Co ltd
Current assignee: China Aviation Environmental Science (Beijing) Technology Development Co.,Ltd.
Priority date: 2019-06-18
Filing date: 2019-06-18
Publication date: 2020-05-12
Anticipated expiration: 2029-06-18

Abstract

An oil sludge pyrolysis machine comprises an outer rotary drum, an inner rotary drum is coaxially fixed in the outer rotary drum, a left end cap is rotatably connected to the left side of the outer rotary drum, a discharge hole communicated with the left end of the outer rotary drum is formed in the lower portion of the left end cap, a right end opening of the inner rotary drum is located in the outer rotary drum, supporting devices supporting the outer rotary drum and in rolling contact with the outer rotary drum are arranged at two ends of the outer rotary drum, at least one section of heat exchange portion is arranged on the outer rotary drum, a heating device is arranged outside the heat exchange portion, materials enter from the left end of the inner rotary drum and sequentially pass through the right end of the inner rotary drum, the right end of the. The inner rotary drum and the outer rotary drum are matched in a two-layer design, so that the use space is reduced, the heating effect is improved and the heat loss is reduced by heating materials more intensively; the material is heated more uniformly, and the pyrolysis effect and speed are improved.

Description

Oil sludge pyrolysis machine

Technical Field

The utility model relates to a sludge treatment equipment technical field, especially a fatlute pyrolysis machine.

Background

Sludge is produced during the treatment of sewage in oil development, transportation and refining. The mixture containing silt, mineral substances and other impurities of crude oil or finished oil has the oil content existing in the mixture of various forms and can not be directly recovered, and the oil sludge has increasingly greater pollution to the environment. The composition of the oil sludge is as follows: the composition of the sludge is very complex. Generally consists of a water-in-oil and oil-in-water emulsion and suspended solids, and is a relatively stable suspended emulsion system. The particles of the oil sludge are fine and are flocculent; the density difference is small (the density of oil and water is close), the water content is high (generally between 40% and 90%), and the water holding capacity is strong; fully emulsify, have high viscosity and are difficult to settle; poor stability, easy putrefaction and generation of foul smell, and great harm to environment. The existing device for heating and pyrolyzing the oil sludge occupies a large space, has a complex structure and is high in use cost.

SUMMERY OF THE UTILITY MODEL

To the above situation, in order to overcome the defects of the prior art, the utility model aims to provide a fatlute pyrolysis machine, which has small occupied space, uniform heating of the fatlute and thorough decomposition.

The oil sludge pyrolysis machine comprises an outer rotary drum, wherein an inner rotary drum is coaxially fixed in the outer rotary drum, the left side of the outer rotary drum is rotatably connected with a left end cap, the right end of the outer rotary drum is rotatably connected with a right end cap, the lower part of the left end cap is provided with a discharge hole communicated with the left end of the outer rotary drum, the left end cap is provided with a feed hole communicated with the inner rotary drum, the right end opening of the inner rotary drum is positioned in the outer rotary drum, two ends of the outer rotary drum are provided with supporting devices for supporting the outer rotary drum and in rolling contact with the outer rotary drum, the outer rotary drum is coaxially sleeved with an inherent gear ring, the gear ring is meshed with a driving gear, the lower part of the driving gear is provided with a base for supporting a gear, the driving gear is connected with the base through a gear shaft, the gear shaft is connected with a driving device, at least one section of heat exchange, The right end of the outer rotary cylinder and the left end of the outer rotary cylinder finally flow out of the discharge hole.

Preferably, the left end of the inner rotary drum extends out of the outer rotary drum to the left, the inner rotary drum is connected with a screw conveyer, a feed inlet of the screw conveyer extends into the inner rotary drum, the left end of the inner rotary drum is provided with a protection plate extending inwards, and the screw conveyer is not in contact with the protection plate or the outer wall of the screw conveyer is rotatably connected with the protection plate.

Preferably, at least one of the left end cap and the right end cap is provided with an exhaust hole communicated with the outer rotary drum.

Preferably, the heat exchanging parts are two sections and are arranged on two sides of the gear ring, and the two heating devices correspond to the two sections of the heat exchanging parts one by one.

Preferably, the heating device comprises a combustion furnace, a plurality of gas nozzles are arranged in the combustion furnace, the outer rotary drum penetrates through the combustion furnace, and flame sprayed by the gas nozzles heats the outer rotary drum, and further heats oil sludge in the outer rotary drum and the inner rotary drum through heat exchange with the heat exchange part.

Preferably, the inner wall of the outer rotating cylinder is provided with a first helical blade.

Preferably, the inner wall of the inner rotating drum is provided with a second helical blade.

Preferably, the inner rotary drum is internally provided with a heat exchange ball, and the right port of the inner rotary drum is provided with a filter screen for blocking the heat exchange ball from passing through.

Preferably, the supporting device comprises a supporting seat, and the supporting seat is provided with two rollers which are positioned at the lower part of the outer rotary drum and used for supporting the outer rotary drum.

Preferably, the heat exchange part of the outer cylinder is circumferentially provided with a plurality of heat exchange plates parallel to the axis of the outer cylinder.

The utility model has the advantages that: the inner rotary drum and the outer rotary drum are matched in a two-layer design, so that the use space is reduced, the heating effect is improved and the heat loss is reduced by heating materials more intensively; the material is heated more uniformly, and the pyrolysis effect and speed are improved; by adding the helical blades, the circulation speed of the materials in the inner rotary drum and the outer rotary drum can be improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a perspective view of the present invention.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

As shown in fig. 1 and 2, the oil sludge pyrolysis machine comprises an outer barrel 1, and is characterized in that an inner barrel 2 is coaxially fixed in the outer barrel 1, a left end cap 3 is rotatably connected to the left side of the outer barrel 1, a right end cap 6 is rotatably connected to the right end of the outer barrel 1, a discharge port 4 communicated with the left end of the outer barrel 1 is arranged at the lower part of the left end cap 3, the left end cap is provided with a feed port communicated with the inner barrel 2, the right end port of the inner barrel 2 is positioned in the outer barrel 1, support devices 5 for supporting the outer barrel and in rolling contact with the outer barrel are arranged at the two ends of the outer barrel, a gear ring 7 is coaxially sleeved on the outer barrel 1, a driving gear 8 is meshed with the gear ring 7, a base 9 for supporting a gear is arranged at the lower part of the driving gear 8, the driving gear 8 is connected with the base 9 through a gear shaft, the gear shaft, the heating part 10 is externally provided with a heating device, materials enter from the left end of the inner rotary drum 2, sequentially pass through the right end of the inner rotary drum 2, the right end of the outer rotary drum 1 and the left end of the outer rotary drum 1 and finally flow out from the discharge hole 4.

The left end of the inner rotary drum 2 extends out of the outer rotary drum 1 leftwards, the inner rotary drum 2 is connected with a spiral conveyor 11, a feed inlet of the spiral conveyor 11 extends into the inner rotary drum 2, a protection plate 12 extending inwards is arranged at the left end of the inner rotary drum 2, and the spiral conveyor 11 is not in contact with the protection plate 12 or the outer wall of the spiral conveyor 11 is rotatably connected with the protection plate 12.

The oil sludge pyrolysis machine can be used for pyrolyzing oil sludge generated in the oil production process, and can also be used for biomass pyrolysis, urban domestic garbage pyrolysis and the like. The material such as oil sludge to be pyrolyzed is conveyed into the inner rotary drum 2 through the screw conveyer 11, and then the oil sludge sequentially passes through the right end of the inner rotary drum 2, the right end of the outer rotary drum 1 and the left end of the outer rotary drum 1 and finally flows out of the discharge hole 4. The heating device heats the outer rotary drum 1, and then materials such as oil sludge in the outer rotary drum 1 and the inner rotary drum 2 are heated, the materials such as oil sludge are heated for decomposition, and the materials after the heating decomposition finally flow out from the discharge port 4 and enter the next procedure. The discharge port 4 is communicated with a cooling pipeline, the cooling pipeline passes through a cooling device, the cooling pipeline is connected with a discharge pipeline, and the discharge pipeline is connected with a material collecting box. The material flowing out of the discharge port 4 sequentially passes through the cooling pipeline, is cooled in the cooling pipeline, and then enters the material collecting box through the discharge pipeline to be processed and utilized in the next procedure. The driving device drives the outer rotary drum 1 to rotate through the driving gear 8 and the gear ring 7, and a support frame is arranged between the outer rotary drum 1 and the inner rotary drum 2 to fix the inner rotary drum in the outer rotary drum 1.

At least one of the left end cap 3 and the right end cap 6 is provided with an exhaust hole 13 communicated with the outer rotary drum 1. The exhaust hole 13 is connected with an exhaust duct.

The heat exchanging parts 10 are two sections and are arranged on two sides of the gear ring 7, and the two heating devices are in one-to-one correspondence with the two sections of the heat exchanging parts 10.

The heating device comprises a combustion furnace 14, a plurality of gas nozzles 15 are arranged in the combustion furnace 14, the outer rotary drum 1 penetrates through the combustion furnace, flame sprayed by the gas nozzles 15 heats oil sludge in the outer rotary drum 1 and further in the outer rotary drum 1 and the inner rotary drum 2 through heat exchange with the heat exchange part 10. The exhaust pipe is connected with the combustion furnace 14, and the waste gas discharged from the exhaust hole 13 and the exhaust pipe contains combustible gas and is discharged into the combustion furnace 14 for combustion utilization, thereby saving energy and reducing waste gas discharge.

The inner wall of the outer rotating cylinder 1 is provided with a first helical blade. The first helical blade is added, so that materials such as oil sludge can be conveniently conveyed to the left end of the outer rotary drum 1 from the right end of the outer rotary drum 1.

And a second helical blade is arranged on the inner wall of the inner rotating drum 2. The second helical blade is added, so that materials such as oil sludge can be conveniently conveyed to the right end of the inner rotary drum 2 from the left end of the inner rotary drum 2.

The interior rotary drum is equipped with the heat transfer ball in, interior rotary drum right port is equipped with the filter screen that blocks the heat transfer ball and pass through. The heat exchange ball is added, so that the heat transfer between the outer rotary drum 1 and materials such as oil sludge is improved, the materials can pass through the heat exchange ball, and the filter screen cannot be passed through by the heat exchange ball.

The supporting device 5 comprises a supporting seat, and the supporting seat is provided with two rollers which are positioned at the lower part of the outer rotary drum 1 and used for supporting the outer rotary drum 1.

The heat exchange part 10 of the outer cylinder 1 is circumferentially provided with a plurality of heat exchange plates 16 parallel to the axis of the outer cylinder 1. The heat exchange plate 16 increases the heat transfer area between the heat exchange part 10 of the outer rotary drum 1 and the combustion furnace 14, and improves the heat transfer efficiency.

The driving device comprises a driven chain wheel, a driving chain wheel, a motor and a speed reducer, wherein the driven chain wheel, the driving chain wheel, the motor and the speed reducer are installed on a gear shaft, the motor is connected with the speed reducer, an output shaft of the speed reducer is connected with the driving chain wheel, and the driving chain wheel is connected with the driven chain wheel through a chain.

The above-mentioned embodiments are not intended to limit the scope of the present invention, and various modifications and improvements made by those skilled in the art without departing from the design concept of the present invention should be included in the protection scope defined by the claims of the present invention.

Claims

1. An oil sludge pyrolysis machine comprises an outer rotating cylinder (1), and is characterized in that an inner rotating cylinder (2) is coaxially fixed in the outer rotating cylinder (1), the left side of the outer rotating cylinder (1) is rotatably connected with a left end cap (3), the right end of the outer rotating cylinder (1) is rotatably connected with a right end cap (6), the lower part of the left end cap (3) is provided with a discharge hole (4) communicated with the left end of the outer rotating cylinder (1), the left end cap is provided with a feed inlet communicated with the inner rotating cylinder (2), the right end opening of the inner rotating cylinder (2) is positioned in the outer rotating cylinder (1), two ends of the outer rotating cylinder are provided with supporting devices (5) for supporting the outer cylinder and in rolling contact with the outer cylinder, the outer rotating cylinder (1) is coaxially sleeved with an inherent gear ring (7), the gear ring (7) is meshed with a driving gear (8), the lower part of the driving gear (8) is provided with a base (, the gear shaft is connected with a driving device, at least one section of heat exchange part (10) is arranged on the outer cylinder, a heating device is arranged outside the heat exchange part (10), materials enter from the left end of the inner rotary cylinder (2), sequentially pass through the right end of the inner rotary cylinder (2), the right end of the outer rotary cylinder (1) and the left end of the outer rotary cylinder (1) and finally flow out from the discharge hole (4).

2. The sludge pyrolysis machine as claimed in claim 1, wherein the left end of the inner rotary drum (2) extends out of the outer rotary drum (1) to the left, the inner rotary drum (2) is connected with a screw conveyor (11), a feed port of the screw conveyor (11) extends into the inner rotary drum (2), the left end of the inner rotary drum (2) is provided with a protection plate (12) extending inwards, and the screw conveyor (11) is not in contact with the protection plate (12) or the outer wall of the screw conveyor (11) is rotatably connected with the protection plate (12).

3. The sludge pyrolysis machine of claim 1, wherein at least one of the left end cap (3) and the right end cap (6) is provided with an air vent (13) communicating with the outer rotor (1).

4. The sludge pyrolysis machine as claimed in claim 1, wherein the heat exchanging part (10) is provided in two sections and arranged on both sides of the gear ring (7), and the heating devices are provided in two and correspond to the two heat exchanging parts (10) one by one.

5. The sludge pyrolysis machine as claimed in claim 1 or 4, wherein the heating device comprises a combustion furnace (14), a plurality of gas nozzles (15) are arranged in the combustion furnace (14), the outer rotary drum (1) passes through the combustion furnace, and flames sprayed from the gas nozzles (15) heat the sludge in the outer rotary drum (1) and the inner rotary drum (2) through heat exchange with the heat exchanging part (10).

6. The sludge pyrolysis machine of claim 1, wherein the inner wall of the outer rotor (1) is provided with a first helical blade.

7. The sludge pyrolysis machine of claim 1 or 6, wherein the inner wall of the inner rotating cylinder (2) is provided with second helical blades.

8. The oil sludge pyrolysis machine of claim 1, wherein the inner rotary drum is internally provided with a heat exchange ball, and a right port of the inner rotary drum is provided with a filter screen for blocking the heat exchange ball from passing through.

9. The sludge pyrolysis machine of claim 1, wherein the support means (5) comprises a support base provided with two rollers located below the outer drum (1) for supporting the outer drum (1).

10. The sludge pyrolysis machine of claim 5, wherein the heat exchanging part (10) of the outer rotary drum (1) is circumferentially provided with a plurality of heat exchanging plates (16) parallel to the axis of the outer rotary drum (1).