CN113532103A

CN113532103A - Sectional rotary furnace

Info

Publication number: CN113532103A
Application number: CN202111045491.8A
Authority: CN
Inventors: 姜良军; 李兵成; 马贵权; 周林; 常鄂刚; 谭仕熠; 刘扬; 卓超
Original assignee: Hunan Dingjiu Energy Environment Technology Co ltd
Current assignee: Hunan Dingjiu Energy Environment Technology Co ltd
Priority date: 2021-02-04
Filing date: 2021-09-07
Publication date: 2021-10-22
Also published as: CN219328303U

Abstract

The application discloses sectional type rotary furnace, including cylinder, furnace end device and stove tail device, the both ends of cylinder rotate sealing connection with the furnace end device and the stove tail device that the rigid set up respectively, and the cylinder can follow same direction and rotate in succession, and sectional type rotary furnace still includes: the one or more segmented plates are arranged in the roller, the edges of the segmented plates are hermetically connected with the inner wall of the roller, and the segmented plates are used for axially dividing the roller into a plurality of mutually independent working condition segments; and two ends of the solid-phase conveying device are communicated with the two adjacent working condition sections and are used for conveying the solid materials between the two adjacent working condition sections. The sectional type rotary furnace divides the roller into a plurality of mutually independent working condition sections through the sectional plates, allows different working conditions to be set in each working condition section, completes corresponding processes for materials in each working condition section, and realizes solid material conveying and residence time adjustment among the working condition sections through the solid phase conveying device.

Description

Sectional rotary furnace

This application claims priority from the following prior applications:

the Chinese patent application with the application number of 202110155928.7 and the invented name of 'sectional rotary furnace' filed by the Chinese patent office at 04.02 month in 2021;

the Chinese patent application with the application number of 202110155900.3 and the name of the invention of a three-section rotary furnace is filed in 2021, 02, 04;

the Chinese patent application with the application number of 202110155916.4 and the name of the invention of a three-section rotary furnace is filed in 2021, 02, 04;

the application of Chinese patent with the application number of 202110154614.5 and the name of two-section rotary furnace is filed in 2021, 02/04;

the application of Chinese patent with the application number of 202110154508.7 and the name of two-section rotary furnace is filed in 2021, 02/04;

the Chinese patent application with the application number of 202110155768.6 and the name of the invention of a three-section rotary furnace is filed in 2021, 02, 04;

the Chinese patent application with the application number of 202110154498.7 and the name of the invention of a three-section rotary furnace is filed in 2021, 02, 04;

the Chinese patent application with the application number of 202110154496.8 and the name of the invention of a three-section rotary furnace is filed in 2021, 02, 04;

the application of Chinese patent with the application number of 202110154491.5 and the name of two-section rotary furnace is filed in 2021, 02/04;

the application of Chinese patent with the application number of 202110155766.7 and the name of two-section rotary furnace is filed in 2021, 02/04;

the application of Chinese patent with the application number of 202110155762.9 and the name of two-section rotary furnace is filed in 2021, 02/04;

the Chinese patent application with the application number of 202110154621.5 and the name of the invention of a three-section rotary furnace is filed in 2021, 02, 04;

the application of Chinese patent with the application number of 202110155751.0 and the name of two-section rotary furnace is filed in 2021, 02/04;

the application of the Chinese patent with the application number of 202110154464.8 and the name of the invention of a three-section rotary furnace is filed in 2021, 02/04.

The entire contents of the above prior applications are incorporated by reference in the present application.

Technical Field

The invention relates to the technical field of environmental protection, energy and chemical equipment, in particular to a sectional type rotary furnace.

Background

In the environmental protection, energy and chemical production, the conversion process of some materials usually needs to be carried out through the processes of drying, pyrolysis, gasification, carbonization, activation, reaction, cooling and the like, and the processes are generally carried out by different rotary furnaces. The existing rotary furnace generally comprises a roller, a furnace end and a furnace tail, wherein the furnace end and the furnace tail are fixedly and fixedly connected in a sealing manner around two ends of the roller and are in dynamic and static sealing with two ends of the roller, and the roller continuously rotates in a single direction through an external driving device. The rotary furnace is an integral chamber because the interior of the roller is communicated front and back, and gas flows unimpededly in the chamber; meanwhile, as the rotary furnace has a certain inclination angle, solid materials inevitably roll and move to the lower end of the rotary furnace along with the rotation of the rotary furnace body, and the retention time of the solid materials in the roller cannot be effectively controlled. Meanwhile, for certain processes with large reaction condition difference, the existing rotary furnace cannot be well carried out in the same rotary furnace due to the fact that the chambers are integrally communicated.

In conclusion, how to solve the problems that the residence time of the solid materials in the rotary furnace cannot be effectively controlled and different processes cannot be carried out in the same rotary furnace becomes a problem to be solved by the technical personnel in the field.

Disclosure of Invention

In view of the above, the present invention provides a sectional type rotary furnace, which can effectively control the retention time of solid materials and realize the section of the rotary furnace, and can complete respective process treatment under different working conditions of each section.

In order to achieve the purpose, the invention provides the following technical scheme:

the utility model provides a sectional type rotary furnace, includes cylinder, furnace end device and stove tail device, the both ends of cylinder respectively with fixed motionless setting the furnace end device with stove tail device rotates sealing connection, the cylinder can follow same direction and rotate in succession, sectional type rotary furnace still includes:

one or more segmented plates are arranged in the roller, the edges of the segmented plates are hermetically connected with the inner wall of the roller, and the segmented plates are used for axially dividing the roller into a plurality of mutually independent working condition segments;

and two ends of the solid-phase conveying device are communicated with the two adjacent working condition sections and are used for conveying the solid materials between the two adjacent working condition sections.

Preferably, in the segmented rotary furnace, the solid phase conveying device is a screw conveyor, the screw conveyor is obliquely and sequentially inserted into two adjacent working condition sections corresponding to the screw conveyor from the outside of the roller and penetrates through the segmented plate, the inlet of the screw conveyor is located in one of the two adjacent working condition sections close to the burner device, and the outlet of the screw conveyor is located in the other of the two adjacent working condition sections far away from the burner device.

Preferably, in the segmented rotary furnace, the screw conveyor comprises a power part, a screw part and a cylinder, the screw part is arranged in the cylinder, the screw part is in transmission connection with the power part, an outlet of the screw conveyor is arranged at the end part of the cylinder, and the part of the screw conveyor, which is positioned in the working section close to the furnace end device, is not provided with the cylinder.

Preferably, in the segmented rotary kiln described above, the screw member is an interrupted screw and/or there is a distance between an end of the screw member near the outlet of the screw conveyor and an end of the barrel.

Preferably, in the segmented rotary furnace, the segmented rotary furnace further comprises a controller and a position switch, the power component and the position switch are in signal connection with the controller, the position switch is arranged on the roller, when the solid phase conveying device is located in a material accumulation range right below the roller, the position switch is triggered, the controller controls the power component to operate, and the power component drives the spiral component to move.

Preferably, in the above-mentioned segmented rotary kiln, the position switch is any one or combination of a photoelectric switch and a magnetic induction switch.

Preferably, in the segmented rotary furnace, the solid phase conveying device is arranged outside the drum, and an inlet and an outlet of the solid phase conveying device are respectively connected with the drum walls of two adjacent working condition segments corresponding to the solid phase conveying device.

Preferably, in the segmented rotary kiln, the solid phase conveyor is a screw conveyor or a piston conveyor.

Preferably, in the segmented rotary furnace described above, the burner apparatus comprises:

the furnace end kiln body is internally provided with one or more exhaust chambers, each exhaust chamber is provided with a first exhaust port and a first ash discharge port, the furnace end kiln body is fixedly and fixedly connected with the feeding end of the roller in a rotating and sealing manner, and each exhaust chamber is correspondingly communicated with one working condition section of the roller;

the feeding mechanism penetrates through the furnace end kiln body in a sealing mode and extends into the roller, and the feeding mechanism is provided with a material inlet.

Preferably, in the segmented rotary furnace, a follow-up jacket and/or a fixed jacket are/is further included;

the follow-up jacket is fixed on the wall of the roller, a heating medium is introduced into the follow-up jacket, and the follow-up jacket is communicated with one exhaust chamber;

the fixed jacket is fixedly arranged, the roller penetrates through the fixed jacket, the wall of the roller is connected with the fixed jacket in a rotating and sealing mode, and a heating medium is introduced into the fixed jacket.

Preferably, in the segmented rotary furnace, the feeding end of the roller is provided with a reducing section, the outer diameter of the reducing section is smaller than that of the rest shaft section of the roller, and the furnace end kiln body is connected with the reducing section in a rotating and sealing mode.

the follow-up jacket is fixed on the wall of the roller and is internally used for introducing a heating medium;

Preferably, in the segmented rotary furnace, the follower jacket is in communication with at least one of the working segments of the drum; and/or the fixed jacket is communicated with at least one working condition section of the roller.

Preferably, in the segmented rotary furnace described above, the furnace tail device comprises:

the furnace tail kiln body, pyrolysis gas export and bin outlet have been seted up to the furnace tail kiln body, the furnace tail kiln body immovably with the discharge end of cylinder directly or indirectly rotates sealing connection, the furnace tail kiln body with being close to of cylinder the discharge end operating mode section directly or indirectly communicates.

Preferably, the sectional type rotary furnace further comprises a combustion furnace body and a burner, the combustion furnace body is provided with an air inlet, a hot air outlet and a second ash discharge port, the burner is communicated with the combustion furnace body and used for generating heating gas through combustion in the combustion furnace body, the air inlet is used for introducing oxygen-containing gas, and the hot air outlet is communicated with at least one working condition section of the follow-up jacket and/or the fixed jacket and/or the roller through a hot air conveying pipe.

Preferably, in the segmented rotary furnace, the pyrolysis gas outlet of the furnace tail kiln body is communicated with the combustion furnace body through a pyrolysis gas conveying pipe, and is used for introducing the pyrolysis gas in the furnace tail kiln body into the combustion furnace body for combustion.

Preferably, in the above-mentioned segmented rotary furnace, the pyrolysis gas conveying pipe is disposed in the combustion furnace body, one end of the pyrolysis gas conveying pipe is communicated with the pyrolysis gas outlet, and the other end of the pyrolysis gas conveying pipe enters the combustion furnace body.

Preferably, in foretell sectional type rotary furnace, still be provided with the median septum in the burning furnace body, the median septum will the burning furnace body divides into combustion area and steam exhaust area, the combustor air intake with the second ash discharge mouth all is located combustion area, the hot gas export is located steam exhaust area, combustion area with the upper portion intercommunication in steam exhaust area.

Preferably, in the segmented rotary furnace, the furnace tail kiln body and the combustion furnace body are of an integrated structure or a split structure.

Preferably, in the sectional type rotary furnace, the discharge end of the drum is open, the furnace tail kiln body is in rotary sealing connection with the outer peripheral wall of the discharge end of the drum, and the furnace tail kiln body is directly communicated with the working condition section, close to the discharge end, of the drum;

the hot gas delivery pipe includes:

the hot gas conveying main pipe is connected with the hot gas outlet in a rotating and sealing mode, the axis of the hot gas conveying main pipe is overlapped with that of the roller, one end of the hot gas conveying main pipe is communicated with the combustion furnace body, the other end of the hot gas conveying main pipe is closed or communicated with at least one working condition section in the roller and/or the servo jacket and/or the fixed jacket, and one or more parallel pipes are arranged on the part, located in the roller, of the hot gas conveying main pipe;

and two ends of the hot gas conveying branch pipe are respectively fixedly communicated with the hot gas conveying main pipe and a follow-up jacket arranged on the roller, and the hot gas conveying branch pipe is positioned in the furnace tail kiln body.

Preferably, in the segmented rotary furnace, the number of the hot gas conveying branch pipes is multiple, the hot gas conveying branch pipes are uniformly arranged along a conical surface and are of an umbrella-shaped structure, and a gap is formed between every two adjacent hot gas conveying branch pipes.

Preferably, in the segmented rotary furnace, the discharge end of the drum is arranged in a closed manner, and the furnace tail kiln body is connected with the peripheral wall of the discharge end of the drum in a rotating and sealing manner; the furnace tail kiln body is communicated with a working condition section, close to the discharge end, of the roller through a roller wall discharge mechanism; the cylinder wall discharging mechanism is sequentially obliquely inserted into the roller from the outside of the roller and penetrates through the discharging end, the inlet of the cylinder wall discharging mechanism is positioned in the working condition section of the roller close to the discharging end, and the outlet of the cylinder wall discharging mechanism is positioned in the furnace tail kiln body;

the hot gas delivery pipe includes:

one end of the hot gas conveying main pipe is connected with a hot gas outlet in a rotating and sealing mode, the axis of the hot gas conveying main pipe is overlapped with the axis of the roller, one end of the hot gas conveying main pipe is communicated with the combustion furnace body, the other end of the hot gas conveying main pipe is communicated with at least one working condition section in the roller and/or the servo jacket and/or the fixed jacket, and one or more parallel pipes are arranged on the part, located in the roller, of the hot gas conveying main pipe;

the hot gas conveying branch pipe is positioned in the roller, one end of the hot gas conveying branch pipe is fixedly communicated with the hot gas conveying main pipe, and the other end of the hot gas conveying branch pipe is communicated with the servo jacket and/or the fixed jacket.

Preferably, in the segmented rotary furnace, the discharge end of the drum is arranged in a closed manner, and the furnace tail kiln body is connected with the peripheral wall of the discharge end of the drum in a rotating and sealing manner; the furnace tail kiln body is communicated with a working condition section, close to the discharge end, of the roller through a roller wall discharge mechanism; the cylinder wall discharging mechanism is sequentially obliquely inserted into the roller from the outside of the roller and penetrates through the discharging end, the inlet of the cylinder wall discharging mechanism is positioned in the working condition section, close to the discharging end, of the roller, and the outlet of the cylinder wall discharging mechanism is positioned in the furnace tail kiln body;

the hot gas delivery pipe includes:

Preferably, in the segmented rotary furnace, the number of the hot gas conveying branch pipes is multiple, and the hot gas conveying branch pipes are uniformly arranged in a radial shape.

Preferably, in the segmented rotary furnace, the cylinder wall discharging mechanism is a cylinder wall spiral discharging mechanism.

Preferably, in the segmented rotary furnace described above, the furnace tail device further includes:

the furnace tail gas inlet cylinder is fixedly arranged, the furnace tail gas inlet cylinder is connected with the outer peripheral wall of the roller, close to the discharge end, or the outer wall of the follow-up jacket in a rotating and sealing mode, the furnace tail gas inlet cylinder is communicated with the follow-up jacket and/or the fixed jacket and/or at least one working condition section of the roller, the furnace tail gas inlet cylinder is provided with a hot gas inlet and a third ash discharge port, and the hot gas inlet is communicated with a hot gas outlet of the combustion furnace body.

Preferably, in the sectional type rotary furnace, the discharge end of the roller is arranged in a closed manner, the furnace tail kiln body is connected with the outer peripheral wall of the discharge end of the roller in a rotating and sealing manner, and the furnace tail kiln body is communicated with the working condition section, close to the discharge end, of the roller through a roller wall discharge mechanism; the cylinder wall discharging mechanism is sequentially obliquely inserted into the cylinder from the outside of the cylinder and penetrates through the discharging end, the inlet of the cylinder wall discharging machine is positioned in the working condition section, close to the discharging end, of the cylinder, and the outlet of the cylinder wall discharging machine is positioned in the furnace tail kiln body.

Preferably, in the sectional type rotary furnace, the discharge end of the drum is sealed, a central discharge mechanism is fixedly arranged at the discharge end of the drum, the furnace tail kiln body is in indirect rotary sealing connection with the discharge end of the drum through rotary sealing connection with the central discharge mechanism, and the furnace tail kiln body is indirectly communicated with the working section, close to the discharge end, of the drum through the central discharge mechanism.

Preferably, in the segmented rotary furnace, the furnace tail gas inlet cylinder covers the outer part of the discharge end of the roller, and the furnace tail gas inlet cylinder is connected with the outer wall of the central discharge mechanism in a rotating and sealing manner.

Preferably, in the segmented rotary furnace, an air supply pipeline is arranged in the roller, and the furnace tail air inlet cylinder is communicated with at least one working condition segment of the roller and/or the servo jacket and/or the fixed jacket through the air supply pipeline; the gas supply pipeline comprises a gas supply main pipe and a gas supply branch pipe, the gas supply branch pipe is communicated with the furnace tail gas inlet cylinder, one end of the gas supply main pipe is communicated with the gas supply branch pipe, the other end of the gas supply main pipe is communicated with at least one working condition section of the roller and/or the servo jacket and/or the fixed jacket, and the gas supply main pipe is provided with one pipe or a plurality of parallel pipes.

Preferably, in the segmented rotary furnace, the central discharging mechanism is a central spiral discharging mechanism or a central piston discharging mechanism, a material turning plate is fixed at an inlet of the central discharging mechanism, and the material turning plate is fixed on the inner wall of the drum in an extending manner;

the central spiral discharging mechanism comprises:

one end of the central discharging barrel is fixed at the discharging end of the roller, the other end of the central discharging barrel is in rotary sealing connection with the furnace tail kiln body, and the central discharging barrel is in rotary sealing connection with the furnace tail air inlet barrel;

the central spiral is rotatably arranged on the central discharging barrel;

and the second power component is in driving connection with the central spiral and is used for driving the central spiral to rotate relative to the central discharging barrel.

Preferably, the sectional type rotary furnace further comprises a furnace exhaust box which is fixedly arranged, the roller penetrates through the furnace exhaust box, the roller wall of the roller is connected with the furnace exhaust box in a rotating and sealing mode, the working condition section corresponding to the furnace exhaust box in the roller or the follow-up jacket is communicated with the furnace exhaust box, and the furnace exhaust box is provided with a second exhaust port and a fourth ash discharge port.

Preferably, in the segmented rotary furnace, a gas outlet pipe group is arranged on the wall of the roller corresponding to the exhaust box in the furnace, and the exhaust box in the furnace and the inside of the roller are communicated through the gas outlet pipe group.

Preferably, in the segmented rotary furnace, the segmented rotary furnace further comprises at least one fixed partition plate arranged in the working condition section of the roller; the fixed partition board is fixed in the roller, an opening is formed in the fixed partition board, and the opening is close to the roller wall of the roller.

Preferably, in the above segmented rotary furnace, outer insulating layers are arranged on two side plate surfaces of the segmented plate, or an insulating interlayer is arranged inside the segmented plate.

Preferably, in the segmented rotary furnace, the wall of the drum is provided with an insulating layer.

Preferably, in the segmented rotary furnace, the included angle between the plate surface of the segmented plate and the axis of the roller is 45-135 degrees.

Preferably, in the segmented rotary furnace, a plurality of heat exchange tubes for indirectly heating the material in the working condition segment are arranged in the roller, and the heat exchange tubes penetrate through the segmented plate in a sealing manner.

Preferably, in the sectional type rotary furnace, the interior of the roller is sequentially divided into two mutually independent working condition sections from the feeding end to the discharging end through the sectional plates, wherein the two working condition sections are respectively a drying section and a carbonization section; or the interior of the roller is sequentially divided into three mutually independent working condition sections from the feeding end to the discharging end through the sectional plates, namely a pre-drying section, a drying section and a carbonization section.

Compared with the prior art, the invention has the beneficial effects that:

the sectional type rotary furnace provided by the invention comprises a roller, a furnace end device, a furnace tail device and a solid phase conveying device, wherein two ends of the roller are respectively connected with the fixedly arranged furnace end device and the furnace tail device in a rotating and sealing way, and the roller can continuously and slowly rotate along the same direction; be provided with one or more segmentation boards in the cylinder, the edge of segmentation board and the inner wall sealing connection of cylinder cut apart into a plurality of mutually independent operating mode sections with the cylinder, keep apart completely between each operating mode section, and solid phase conveyor's both ends and two adjacent operating mode sections intercommunication for solid material between two adjacent operating mode sections is carried.

When the solid material conveying device works, materials are conveyed into the roller through the furnace end device, the roller is placed at a certain inclination angle, the feeding end is higher than the discharging end, the roller continuously rotates along the same direction, the materials roll from the feeding end to the discharging end under the action of self weight, and the roller is divided into a plurality of mutually independent working condition sections by the sectional plates, so that the solid materials are conveyed to the next working condition section through the solid phase conveying device when the solid phase conveying device rotates to be positioned below in the moving process, the solid materials in the previous working condition section can only enter the next working condition section through the solid phase conveying device, and the solid phase conveying device is always filled with the solid phase materials, so that gas phase is not allowed to pass through, each working condition section is mutually independent, the segmentation is realized, different working conditions are allowed to be set in each working condition section, and the materials can finish corresponding processes under different working conditions of each working condition section, and the retention time of the solid material in the roller is effectively controlled by controlling the conveying operation of the solid-phase conveying device.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

FIG. 1 is a schematic structural view of a sectional type rotary kiln according to an embodiment of the present invention;

FIG. 2 is a schematic structural view of section A-A of FIG. 1;

FIG. 3 is a schematic structural view of a section B-B in FIG. 1;

FIG. 4 is a schematic structural view of a solid phase transportation apparatus of a sectional type rotary kiln according to an embodiment of the present invention;

FIG. 5 is a schematic view showing the structure of a solid phase transport apparatus of another rotary kiln according to the present invention;

FIG. 6 is a schematic structural view of a second rotary kiln according to an embodiment of the present invention;

FIG. 7 is a schematic structural view of a third sectional type rotary kiln according to an embodiment of the present invention;

FIG. 8 is a schematic structural view of a fourth rotary kiln according to an embodiment of the present invention;

FIG. 9 is a schematic structural view of a fifth rotary kiln according to an embodiment of the present invention;

FIG. 10 is a schematic structural view of a sixth sectional type rotary kiln according to an embodiment of the present invention;

FIG. 11 is a schematic view of section C-C of FIG. 10;

FIG. 12 is a schematic view of section D-D of FIG. 10;

FIG. 13 is a schematic structural view of a seventh sectional type rotary kiln according to an embodiment of the present invention;

FIG. 14 is a schematic structural view of section E-E of FIG. 13;

FIG. 15 is a schematic structural view of an eighth rotary kiln according to an embodiment of the present invention;

FIG. 16 is a schematic structural view of a ninth sectional type rotary kiln according to an embodiment of the present invention;

FIG. 17 is a schematic structural view of a tenth sectional type rotary kiln according to an embodiment of the present invention;

fig. 18 is a schematic structural view of a burner unit of a sectional type rotary kiln according to an embodiment of the present invention;

FIG. 19 is a schematic view of a burner assembly of a rotary kiln according to another embodiment of the present invention;

FIG. 20 is a schematic structural view of an eleventh sectional type rotary kiln according to an embodiment of the present invention;

FIG. 21 is a schematic structural view of a twelfth sectional type rotary kiln according to an embodiment of the present invention;

FIG. 22 is a schematic structural view of a thirteenth sectional type rotary kiln according to an embodiment of the present invention;

FIG. 23 is a schematic structural view of a fourteenth sectional type rotary kiln according to an embodiment of the present invention;

fig. 24 is a structural view of the section F-F in fig. 23.

In fig. 1 to 24, 1 is a roller, 2 is a follow-up jacket, 3 is a furnace tail kiln body, 31 is a discharge port, 32 is a pyrolysis gas outlet, 4 is a pyrolysis gas delivery pipe, 5 is a combustion furnace body, 51 is an air inlet, 52 is a second ash discharge port, 53 is a hot gas outlet, 54 is a pyrolysis gas inlet, 6 is a burner, 7 is a middle partition plate, 8 is a hot gas delivery pipe, 81 is a hot gas delivery main pipe, 82 is a hot gas delivery branch pipe, 9 is a solid phase delivery device, 91 is a cylinder body, 911 is a material inlet, 912 is a material outlet, 92 is a screw part, 93 is a power part, 10 is a kiln body, 101 is a first exhaust port, 102 is a first ash discharge port, 11 is a feeding mechanism, 12 is a fixed jacket, 13 is an air pipe, 14 is a furnace tail air inlet pipe, 141 is a third ash discharge port, 142 is an inspection port, 15 is a segmented plate, 16 is an exhaust pipeline, 17 is a central discharge mechanism, 18 is a material turning plate, 19 is a cylinder wall discharging mechanism, 20 is an exhaust box in the furnace, 201 is a second exhaust port, 202 is a fourth ash discharge port, 21 is an insulating layer, 22 is an air supply pipeline, 221 is an air supply branch pipe, 222 is an air supply main pipe, and 23 is a gas outlet pipe group; 25 is a cylinder outer tube, 26 is a cylinder inner tube, and 27 is a confluence guide plate.

Detailed Description

The core of the invention is to provide a sectional type rotary furnace, which can effectively control the retention time of solid materials and realize the section of the rotary furnace, and can complete respective process treatment under different working conditions of each section.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 24, a sectional rotary furnace according to an embodiment of the present invention includes a drum 1, a furnace head device, a furnace tail device and a solid phase conveying device 9, wherein two ends of the drum 1 are respectively connected to the furnace head device and the furnace tail device which are fixedly and fixedly disposed in a rotating and sealing manner, and the drum 1 can continuously and slowly rotate along the same direction; one or more segmented plates 15 are arranged in the roller 1, if the segmented plates 15 are multiple, the segmented plates 15 are sequentially arranged along the axis of the roller 1, the edges of the segmented plates 15 are hermetically connected with the inner wall of the roller 1, the roller 1 is divided into a plurality of mutually independent working condition sections, and all the working condition sections are completely isolated from each other, for example, the inside of the roller 1 is sequentially divided into two mutually independent working condition sections from a feeding end to a discharging end through one segmented plate 15, wherein the two mutually independent working condition sections are respectively a drying section and a carbonization section, or the inside of the roller 1 is sequentially divided into three mutually independent working condition sections from the feeding end to the discharging end through two segmented plates 15, and the three mutually independent working condition sections are respectively a pre-drying section, a drying section and a carbonization section; two ends of the solid-phase conveying device 9 are communicated with two adjacent working condition sections and used for conveying solid materials between the two adjacent working condition sections. Preferably, the angle between the plate surface of the segment plate 15 and the axis of the drum 1 is 45 ° to 135 °, and more preferably about 90 °.

When the sectional type rotary furnace works, materials are conveyed into the roller 1 through the furnace end device, the roller 1 is placed at a certain inclination angle, the feeding end is higher than the discharging end, the roller 1 continuously rotates along the same direction, the materials roll from the feeding end to the discharging end under the action of dead weight, the roller 1 is divided into a plurality of mutually independent working condition sections by the sectional plates 15, gas phase and solid phase are completely isolated, therefore, in the moving process of the solid materials, when the solid phase conveying device 9 rotates to be positioned below, the solid materials in the previous working condition section are conveyed to the next working condition section through the solid phase conveying device 9, and can only enter the next working condition section through the solid phase conveying device 9, because the solid phase conveying device 9 is always filled with the solid phase materials, the gas phase is not allowed to pass through, each working condition section is mutually independent, the sectional type rotary furnace is realized, and different working conditions are allowed to be set in each working condition section, the materials can complete corresponding processes under different working conditions of each working condition section, and the retention time of the solid materials in the roller 1 is effectively controlled by controlling the conveying operation of the solid-phase conveying device 9.

As shown in fig. 4 and 5, the solid phase conveying device 9 is a screw conveyor, the screw conveyor is obliquely inserted into two adjacent working condition sections corresponding to the screw conveyor in sequence from the outside of the roller 1 and passes through the segmented plate 15, the material inlet 911 of the screw conveyor is located in one of the two adjacent working condition sections close to the burner device, i.e., the previous working condition section, and the material outlet 912 of the screw conveyor is located in the other of the two adjacent working condition sections away from the burner device, i.e., the next working condition section.

During operation, along with the rotation of cylinder 1, the material rolls along the inner wall and moves forward in cylinder 1, the material removes to segmentation board 15 department and is blockked, the material collects the position that last operating mode section is close to segmentation board 15, the material gets into the material import 911 of the screw conveyer who is located last operating mode section, screw conveyer works, carry the material to the material export 912 that is located next operating mode section by screw conveyer's material import 911, get into the operating mode section of low reaches at last, accomplish the transport of the solid phase material between two adjacent operating mode sections.

Because this screw conveyer alternates into two adjacent operating mode sections aslope, be equivalent to the material inside the transport of having realized between two adjacent operating mode sections at cylinder 1, screw conveyer is at the in-process of transported substance material, and the material does not leave inside cylinder 1, consequently, has reduced the heat dissipation of material, has reduced the heat loss.

Of course, the screw conveyer can also be integrally arranged outside the roller 1, the material inlet 911 and the material outlet 912 are respectively communicated with the two working condition sections, and only when the material is conveyed between the two working condition sections, the material is separated from the inside of the roller 1, the heat dissipation of the material is fast, and the heat loss is caused.

Further, in this embodiment, the screw conveyor includes a cylinder 91, a screw component 92 and a power component 93, where the cylinder 91 sequentially obliquely and hermetically penetrates into two adjacent working condition sections of the cylinder 1 from the outside of the cylinder 1, and hermetically penetrates through the segmented plate 15 between the two working condition sections, a material inlet 911 of the cylinder 91 is located in the previous working condition section, and a material outlet 912 of the cylinder 91 is located in the next working condition section; the spiral component 92 is arranged in the cylinder 91, rotates relative to the cylinder 91, and is used for moving materials from the material inlet 911 to the material outlet 912; the power member 93 is located outside the drum 1, and the power member 93 is drivingly connected with the screw member 92 for driving the screw member 92 to rotate.

During operation, along with the rotation of cylinder 1, the material rolls along the inner wall and falls and moves forward in cylinder 1, and the material removes to segmentation board 15 department and is blockked, and the material collects the position that the operating mode section at the upper reaches is close to segmentation board 15, and the material gets into the material import 911 of the screw conveyer that is located the last operating mode section, drives the motion of screw member 92 through power part 93, carries the material to the material export 912 that is located the next operating mode section by screw conveyer's material import 911, gets into next operating mode section at last, accomplishes the transport of the solid phase material between two adjacent operating mode sections.

Further, as shown in fig. 5, in the present embodiment, the cylinder 91 is not provided outside the screw part 92 of the screw conveyor located in the previous operating section. That is, the part of the screw conveyer which penetrates into the last working condition section is not provided with the cylinder 91, so that the screw part 92 positioned in the last working condition section is completely exposed in the roller 1, the screw part 92 is directly contacted with the material, and the material wraps the screw part 92. So set up because the material (like mud) probably has viscidity or plasticity, probably bonds, blocks up when getting into screw conveyer's material import 911, consequently, removes the barrel 91 of material import 911 position, directly carries through naked screw member 92, has avoided bonding and jam, makes the material transport more smooth and easy reliable.

Further, in this embodiment, the material outlet 912 is provided at an end surface of the cylinder 91 far away from the power component 93, that is, one end of the cylinder 91 far away from the power component 93 is completely open, so that an axis of the material outlet 912 coincides with an axis of the cylinder 91, which is more beneficial to discharging and completely discharging materials from the cylinder 91, and avoids blockage.

In this embodiment, the spiral member 92 located in the cylinder 91 is an interrupted spiral, and/or a distance exists between one end of the spiral member 92 far from the power member 93 and the material outlet 912. So set up, when the material was carried in barrel 91, because spiral part 92 is the discontinuous spiral, formed the filler space between two adjacent spirals, the material shutoff barrel 91 in the filler space plays spiral part 92 and all hinders the effect that the gaseous phase passed through under the state of carrying the material with stopping carrying the material to guarantee the independence between each operating mode section, do not influence the technology of each operating mode section.

The distance exists between the end, far away from the power component 93, of the spiral component 92 and the material outlet 912, the distance can form a filling space, the material can block the cylinder 91 in the filling space, the effect that the spiral component 92 blocks gas phase from passing under the states of conveying the material and stopping conveying the material can be played, independence among all working condition sections is guaranteed, and the process of all working condition sections is not influenced.

Therefore, when the screw conveyer rotates to the position above the roller 1 along with the roller 1, the screw conveyer is separated from the materials in the roller 1, and the blocking cylinder 91 can be continuously kept by the materials remained in the screw conveyer, so that the effect of gas phase isolation is achieved. When the screw conveyer is positioned above, the screw conveyer can continue to operate, and in the process that the screw conveyer rotates from the top to the lower part, the materials remained in the screw conveyer continue to be conveyed, so that the plugging requirement in the period of time can be met. Of course, when the screw conveyer is positioned above the sealing device, the screw conveyer stops running, the retained materials stop conveying, and the sealing requirement is met.

Of course, the spiral member 92 may also be a continuous spiral, and the material filled in the spiral channel of the continuous spiral can also block the cylinder 91 to prevent the gas phase from passing through.

Preferably, in the present embodiment, the power member 93 is an electric motor or a hydraulic motor, and the electric motor or the hydraulic motor is preferably connected to the screw member 92 through a speed reducer so that the screw member 92 has a suitable speed, as long as the screw member 92 can be driven to rotate, which is not limited to the form illustrated in the present embodiment.

Further, in this embodiment, the screw conveyor further includes a controller and a position switch, the power component 93 and the position switch are both in signal connection with the controller, the position switch is disposed on the drum 1, when the screw conveyor is located within a range of positive and negative 10 ° to 30 ° under the drum 1, preferably, positive and negative 15 ° under the drum 1, that is, when the screw conveyor is located within a range of positive and negative material accumulation under the drum 1, the position switch is triggered, the controller controls the power component 93 to operate, and the power component 93 drives the screw component 92 to move.

The purpose of this is: when the screw conveyer rotates to a high position along with the roller 1, the material inlet 911 has no material, the screw part 92 may idle, so that the material in the screw part 92 is conveyed to the next working condition section, and the material inlet 911 has no material, the material in the screw part 92 may be emptied or the screw part 92 is not filled with the material although not emptied, a gas channel is formed in the screw part 92, so that the working condition sections are communicated with each other in a gas phase, and the gas phase flow appears between the working condition sections due to the possible gas pressure difference between the working condition sections, thereby affecting the process purpose and effect of the sectional treatment.

Therefore, through setting up controller and position switch, when the cylinder 1 rotates to the screw conveyer and is located the range of just minus 10 ~ 30 of directly below outside, namely the screw conveyer is located the range of the long-pending material of the directly below of cylinder 1 outside, position switch does not trigger, and the controller control power part 93 stops the operation, and screw part 92 does not rotate, and the screw conveyer does not carry out the transport of material to make the material remain in barrel 91, and shutoff barrel 91 further plays the effect that the gaseous phase is kept apart.

Preferably, in the present embodiment, the position switch is any one or a combination of a photoelectric switch and a magnetic force sensing switch. Specifically, the outer wall of the roller 1 is provided with a shielding piece or an induction piece of a photoelectric switch or a magnetic induction switch, and the shielding piece or the induction piece is positioned in the range of plus or minus 10 degrees to 30 degrees of the position of the screw conveyor. When the screw conveyer is positioned below the roller 1, the shielding sheet or the induction sheet triggers the photoelectric switch or the magnetic induction switch, the controller controls the power component 93 to operate, and the power component 93 drives the screw component 92 to rotate so as to convey materials.

Of course, besides the solid phase transport device 9 using a screw conveyor inserted into the drum 1 in an inclined manner, in this embodiment, the solid phase transport device 9 can also be disposed outside the drum 1, and the inlet and outlet of the solid phase transport device 9 are respectively connected to the drum walls corresponding to two adjacent operating sections of the solid phase transport device 9, but there is a heat loss due to such an arrangement.

For the solid phase conveying device 9 arranged outside the roller 1, the solid phase conveying device 9 can be a screw conveyor or a piston conveyor, the piston conveyor is a piston type, and the pushing of the materials is realized through the reciprocating movement of the piston.

As shown in fig. 1, 6, 8 to 10, 13, 15, 16, 18 and 19, the present embodiment optimizes a burner apparatus including a burner body 10 and a feeding mechanism 11; the furnace end kiln body 10 is internally provided with one or more exhaust chambers, the exhaust chambers are sequentially arranged along the axis of the roller 1 and are isolated from each other, each exhaust chamber is provided with a first exhaust port 101 and a first ash discharge port 102, the furnace end kiln body 10 is fixedly and fixedly connected with the feeding end of the roller 1 in a rotating and sealing manner, and each exhaust chamber is correspondingly communicated with one working condition section of the roller 1; the feeding mechanism 11 penetrates through the furnace end kiln body 10 in a sealing mode and extends into the roller 1, and the feeding mechanism 11 is provided with a feeding hole.

When the furnace end device works, materials enter the feeding mechanism 11 through the feeding hole, the feeding mechanism 11 conveys the materials to the working condition section, close to the feeding end, of the roller 1, and the materials gradually enter each working condition section through the solid phase conveying device 9. Waste gas generated by reaction in a certain working condition section is discharged into a corresponding exhaust chamber in the furnace end kiln body 10, gas separated from the waste gas is discharged from a first exhaust port 101 of the exhaust chamber, and separated dust is discharged from a first dust discharge port 102. Because the gas in the different operating mode sections exists differently, for the convenience of classification processing, set up a plurality of exhaust chambers for the gas in each operating mode section of discharging alone.

Of course, the furnace end device can also only have one exhaust chamber, and the gas in a plurality of working condition sections is all let in this exhaust chamber, and it is inconvenient only to gaseous processing.

Specifically, for example, as shown in fig. 1, 6, 13, 15, 16 and 18, when the number of the exhaust chambers in the furnace body 10 is one and the drum 1 has at least two working sections, the exhaust chambers are only communicated with the first working section near the feeding end in the drum 1, specifically, the first working section is directly communicated with the exhaust chambers in the furnace body 10.

When the number of the exhaust chambers in the furnace end kiln body 10 is more than two, the feed end of the roller 1 adopts a multilayer sleeve structure, the number of the sleeves of the multilayer sleeve corresponds to the number of the exhaust chambers one by one, an annular space exists between adjacent sleeves for gas circulation, each layer of sleeve corresponds to be communicated with one working condition section, each layer of sleeve rotates and is hermetically connected with each exhaust chamber one by one, and the multilayer sleeves correspond to be communicated with the exhaust chambers arranged in sequence from the feed end to the discharge end from the outer end to the inner end in sequence.

Specifically, as shown in fig. 8 to 10 and 19, when the number of the exhaust chambers in the furnace end kiln body 10 is two, the drum 1 has at least two working condition sections, the feed end of the drum 1 is of a double-sleeve structure, the two exhaust chambers are respectively communicated with the two working condition sections correspondingly, specifically, a first working condition section near the feed end of the drum 1 is communicated with an exhaust chamber far away from the feed end through an inner-layer sleeve, and some other working condition sections can be communicated with another exhaust chamber of the furnace end kiln body 10 through an exhaust duct 16 and an outer-layer sleeve, the exhaust duct 16 is arranged in the drum 1, one end of the exhaust duct is communicated with the corresponding working condition section, the other end of the exhaust duct passes through the section plate 15 in a sealing manner and then is communicated with the outer-layer sleeve, and the outer-layer sleeve is communicated with another exhaust chamber near the feed end in the furnace end kiln body 10 in a rotating and sealing manner.

When the number of the exhaust chambers in the furnace kiln body 10 is three, four, five or more, each exhaust chamber is correspondingly communicated with one working section in the drum 1 in the manner given in the above embodiment.

Referring to fig. 1, 4 to 6, 8 to 10, and 13 to 16, in addition to any one of the above embodiments, the sectional rotary kiln of the present embodiment further includes a follower jacket 2 and/or a fixed jacket 12; the follow-up jacket 2 is fixed on the wall of the roller 1, a heating medium is introduced into the follow-up jacket 2, and the follow-up jacket 2 and the roller 1 rotate together; the fixed jacket 12 is fixedly arranged, the roller 1 penetrates through the fixed jacket 12, the wall of the roller 1 is in rotary sealing connection with the fixed jacket 12, and a heating medium is introduced into the fixed jacket 12. The follow-up jacket 2 and the fixed jacket 12 are used for indirectly heating the materials in the roller 1. Wherein the heating medium may be a high temperature gas.

When the device works, the roller 1 continuously rotates along a single direction, the follow-up jacket 2 and the roller 1 rotate together, the fixed jacket 12 is fixed, heating media are introduced into the follow-up jacket 2 and the fixed jacket 12, and the heat of the heating media is transferred to materials through the wall of the roller 1 to realize indirect heating.

Further, in the present embodiment, the follower jacket 2 communicates with an exhaust chamber, i.e., the heated gas in the follower jacket 2 is directly discharged into the exhaust chamber and finally discharged from the first exhaust port 101. Specifically, the follow-up jacket 2 is communicated with a layer of sleeve at the feeding end of the roller 1, and the layer of sleeve is in rotary sealing communication with the exhaust chamber, so that the heated gas in the follow-up jacket 2 is exhausted.

Or, the follow-up jacket 2 is communicated with at least one working condition section of the roller 1, specifically, the follow-up jacket 2 is communicated with one working condition section of the roller 1 through the vent pipe 13, a distance is reserved between the outlet of the vent pipe 13 and the inner wall of the roller 1, and materials cannot enter the vent pipe 13 in the moving process. The heating gas in the follow-up jacket 2 enters the roller 1, is directly contacted with the material for heating, and is discharged into an exhaust chamber communicated with the working condition section together with the gas in the roller 1, so that the discharge of the heating gas in the follow-up jacket 2 is realized, and the material in the roller 1 can be indirectly heated and directly heated.

Similarly, the fixed jacket 12 is communicated with at least one operating section of the drum 1, specifically, the fixed jacket 12 is communicated with one operating section of the drum 1 through the vent pipe 13, a distance is reserved between the outlet of the vent pipe 13 and the inner wall of the drum 1, and materials cannot enter the vent pipe 13 in the moving process. The heating gas in the fixed jacket 12 enters the roller 1, is directly contacted with the material for heating, and is discharged into an exhaust chamber communicated with the working condition section together with the gas in the roller 1, so that the discharge of the heating gas in the fixed jacket 12 is realized, and the material in the roller 1 can be indirectly heated and directly heated. Of course, the heated gas in the fixed jacket 12 may be directly discharged through its own exhaust port.

As shown in fig. 1, 6, 8-10, 13, 15-17 and 19, the feed end of the drum 1 is provided with a reducing section, the outer diameter of the reducing section is smaller than that of the rest shaft section of the drum 1, and the furnace end kiln body 10 is connected with the reducing section in a rotating and sealing manner. So set up, can reduce the size of the rotary seal face between the feed end of cylinder 1 and furnace end kiln body 10, improve sealing performance. Preferably, the reducer section is provided in a multi-layer sleeve structure for communicating each working section with each exhaust chamber.

Of course, the feed end of the roller 1 may not be provided with the reducing section, and the outer diameter of the roller 1 is consistent, as shown in fig. 18, but the sealing surface is large, which is not beneficial to rotating sealing.

As shown in fig. 1, fig. 6 to fig. 10, fig. 13, fig. 15, and fig. 16, the furnace tail device is optimized, in this embodiment, the furnace tail device includes a furnace tail kiln body 3, the furnace tail kiln body 3 is provided with a pyrolysis gas outlet 32 and a discharge port 31, the furnace tail kiln body 3 is fixedly connected with the discharge end of the drum 1 in a direct or indirect rotary seal manner, if the discharge end of the drum 1 is directly connected with the furnace tail kiln body 3 in a rotary seal manner, the drum wall of the furnace tail kiln body 3 is rotationally connected with the drum wall of the discharge end of the drum 1 through a sealing member, and the furnace tail kiln body 3 is directly or indirectly communicated with the working condition section of the drum 1 near the discharge end.

During operation, the roller 1 rotates along the single direction relative to the fixed furnace tail device, solid materials and pyrolysis gas in the working condition section of the roller 1 close to the discharge end enter the furnace tail kiln body 3, the solid materials and the pyrolysis gas are separated in the furnace tail kiln body 3, the pyrolysis gas is discharged through the pyrolysis gas outlet 32, and the solid materials are discharged from the discharge port 31. The furnace tail kiln body 3 realizes the discharge of solid materials in the roller 1 and the gas phase discharge in the working condition section close to the discharge end.

Further, in this embodiment, the sectional rotary kiln further includes a combustion furnace body 5 and a burner 6, the combustion furnace body 5 is provided with an air inlet 51, a hot air outlet 53 and a second ash discharge port 52, the burner 6 is communicated with the combustion furnace body 5 and is used for generating heating gas by combustion in the combustion furnace body 5, and the burner 6 can adopt natural gas, biomass, fuel oil and the like as fuels; the air inlet 51 is used for introducing oxygen-containing gas to participate in combustion reaction; the hot gas outlet 53 is communicated with at least one working condition section of the follow-up jacket 2 and/or the fixed jacket 12 and/or the roller 1, and is used for introducing heating gas generated by combustion in the combustion furnace body 5 into at least one working condition section of the follow-up jacket 2 and/or the fixed jacket 12 and/or the roller 1 to participate in indirect heating and/or direct heating of materials in the roller 1.

When the device works, the combustor 6 works, combustion is carried out in the combustion furnace body 5 to generate heating gas, and the heating gas is used as a heating medium and is introduced into at least one working condition section of the follow-up jacket 2 and/or the fixed jacket 12 and/or the roller 1 to participate in indirect heating and/or indirect heating of materials.

Further, in this embodiment, the pyrolysis gas outlet 32 of the furnace tail kiln body 3 is communicated with the combustion furnace body 5 through the pyrolysis gas conveying pipe 4, and is used for introducing the pyrolysis gas in the furnace tail kiln body 3 into the combustion furnace body 5 for combustion.

When the device works, pyrolysis gas and waste materials in the roller 1 enter the kiln body 3 at the tail of the furnace from the discharge end of the roller 1 to be separated, the pyrolysis gas enters the combustion furnace body 5 through the pyrolysis gas outlet 32 and the pyrolysis gas conveying pipe 4, solid waste materials are discharged through the discharge port 31, oxygen-containing gas is introduced into the air inlet 51 of the combustion furnace body 5 to be mixed with the pyrolysis gas, the pyrolysis gas is ignited by the combustor 6 to be combusted, and hot gas generated by combustion is discharged from the hot gas outlet 53 and enters the follow-up jacket 2 and/or the fixed jacket 12 and/or at least one working condition section of the roller 1. Therefore, the energy consumption is reduced by utilizing the pyrolysis gas energy in the roller 1.

As shown in fig. 1 to 3, 6 and 7, in the present embodiment, the pyrolysis gas duct 4 is disposed in the combustion furnace body 5, and one end of the pyrolysis gas duct 4 is communicated with the pyrolysis gas outlet 32, and the other end penetrates into the combustion furnace body 5. Through set up pyrolysis gas conveyer pipe 4 in burner block 5 is integrated, can conveniently directly introduce the pyrolysis gas of separation in the tail kiln body 3 of stove into burner block 5 and burn, pyrolysis gas transport distance is short, and pyrolysis gas conveyer pipe 4 is located burner block 5, has guaranteed that the temperature of high temperature pyrolysis gas is unchangeable basically, and pyrolysis gas removes dust under high temperature, has avoided pyrolysis gas coking in the pipeline.

Specifically, the pyrolysis gas delivery pipe 4 is horizontally provided with an arc shape from the top of the combustion furnace body 5 and is bent downwards, the upper end of the pyrolysis gas delivery pipe is communicated with the pyrolysis gas outlet 32 of the furnace tail kiln body 3, and the lower end of the pyrolysis gas delivery pipe is arranged close to the air inlet 51, so that the pyrolysis gas delivery pipe is favorable for being rapidly mixed with oxygen-containing gas.

Of course, the pyrolysis gas duct 4 may communicate the burner body 5 and the kiln body 3 at the tail of the furnace, as shown in fig. 8 and 9, but the pyrolysis gas has a problem of heat loss and is liable to coke.

Further, in the present embodiment, an intermediate partition 7 is further disposed in the burner body 5, and the intermediate partition 7 is disposed between the air inlet 51 and the hot air outlet 53 for dividing the burner body 5 into a combustion area and a hot air exhaust area, and the combustion area is communicated with an upper portion of the hot air exhaust area. Pyrolysis gas is introduced into the combustion area, the second ash discharge port 52 is located in the combustion area, the pyrolysis gas is combusted in the combustion area, generated dust is discharged from the second ash discharge port 52, generated high-temperature hot gas flows from the upper portion of the combustion area to the hot gas discharge area, and then is discharged into at least one working condition section of the follow-up jacket 2 and/or the fixed jacket 12 and/or the drum 1 through the hot gas outlet 53. The combustion area and the hot gas discharge area in the combustion furnace body 5 are separated by the middle partition plate 7, so that the pyrolysis gas can be prevented from directly discharging from the hot gas outlet 53 after entering the combustion furnace body 5, and meanwhile, the dust is prevented from entering the hot gas outlet 53. The lower part of the furnace body 5 is funnel-shaped, and the second ash discharge port 52 is arranged at the lower end of the funnel-shaped.

As shown in fig. 1, in the present embodiment, the furnace tail kiln body 3 and the burner body 5 are an integrated structure, and the adjacent shell walls of the furnace tail kiln body 3 and the burner body 5 share one shell wall. The pyrolysis gas inlet 54 (see fig. 7) and the hot gas outlet 53 are both arranged on the shell wall shared by the kiln body 3 at the tail of the furnace and the combustion furnace body 5, the hot gas outlet 53 is communicated with the follow-up jacket 2 and/or the fixed jacket 12 and/or the roller 1 through the hot gas conveying pipe 8, the pipe wall of the hot gas conveying pipe 8 is in rotary sealing connection with the hot gas outlet 53, and the hot gas conveying pipe 8 and the roller 1 are arranged in a relatively static way.

The furnace tail kiln body 3 and the combustion furnace body 5 are arranged into an integrated structure, the structure is simplified, the pyrolysis gas in the furnace tail kiln body 3 directly enters the pyrolysis gas conveying pipe 4 in the combustion furnace body 5 through an opening on a shared shell wall, the pyrolysis gas conveying path is shortened, the pyrolysis gas is always transmitted in the furnace tail kiln body 3 and the combustion furnace body 5, and the heat loss is reduced. And set up hot gas conveyer pipe 8 inside the stove tail kiln body 3, the axis of hot gas conveyer pipe 8 and the coincidence of the axis of cylinder 1 have shortened the distance of hot gas conveyer pipe 8, and have reduced the heat loss among the hot gas transportation process.

During operation, the hot air delivery pipe 8 rotates along with the roller 1, and the hot air delivery pipe 8 is in rotating sealing connection with the hot air outlet 53 through a sealing element. Hot gas in the combustion furnace body 5 is introduced into the follow-up jacket 2, the fixed jacket 12 and/or the roller 1 through a hot gas conveying pipe 8.

As shown in fig. 6 to 9, in this embodiment, the furnace tail kiln body 3 and the burner body 5 are of a split structure, the shell walls of the furnace tail kiln body 3 adjacent to the burner body 5 are two separate shell walls, the pyrolysis gas outlet 32 is arranged on the shell wall of the furnace tail kiln body 3 close to the burner body 5, the pyrolysis gas inlet 54 and the hot gas outlet 53 of the burner body 5 are arranged on the shell wall of the burner body 5 close to the furnace tail kiln body 3, one end of the pyrolysis gas conveying pipe 4 penetrates out of the burner body 5 and is communicated with the pyrolysis gas outlet 32, the pipe wall of the hot gas conveying pipe 8 and the two shell walls of the burner body 5 adjacent to the furnace tail kiln body 3 are both connected in a sealing and rotating manner, and the hot gas conveying pipe 8 is arranged in a relatively static manner with the drum 1.

The furnace tail kiln body 3 and the combustion furnace body 5 are arranged to be of split structures and are communicated through the pyrolysis gas conveying pipe 4, and the pipe section of the pyrolysis gas conveying pipe 4 exposed outside the combustion furnace body 5 is short, so that the pyrolysis gas conveying path is shortened, and the heat loss is reduced. The section of the hot gas delivery pipe 8 exposed outside the burner body 5 is short, reducing heat loss during the hot gas delivery process. The axis of the hot gas conveying pipe 8 is coincided with the axis of the roller 1, when the rotary kiln works, the hot gas conveying pipe 8 rotates along with the roller 1, and the hot gas conveying pipe 8 is in rotary sealing connection with the hot gas outlet 53 and the shell wall of the kiln body 3 at the tail of the kiln through sealing parts. Hot gas in the combustion furnace body 5 is introduced into the follow-up jacket 2, the fixed jacket 12 and/or the roller 1 through a hot gas conveying pipe 8.

The furnace tail kiln body 3 and the combustion furnace body 5 which are of an integrated structure and a split structure are simple in structure, pyrolysis gas collection, pyrolysis gas combustion and pyrolysis gas conveying integration are completed in one device, the process path is short, heat loss is small, auxiliary devices are few, leakage points are few, operation is stable, and maintenance is convenient. In addition, high-temperature pyrolysis gas directly enters the furnace tail kiln body 3 from the discharge end of the roller 1 and then directly enters the combustion furnace body 5, and the condition of pyrolysis gas coking is avoided.

As shown in fig. 1 to 3, in this embodiment, the discharge end of the drum 1 is open, the furnace-tail kiln body 3 is in rotary sealing connection with the outer peripheral wall of the discharge end of the drum 1, and the furnace-tail kiln body 3 is directly communicated with the working condition section of the drum 1 near the discharge end; the hot gas delivery pipe 8 includes a hot gas delivery main pipe 81 and hot gas delivery branch pipes 82; the hot gas conveying main pipe 81 is in rotary sealing connection with a shell wall shared by the combustion furnace body 5 and the furnace tail kiln body 3 or two adjacent shell walls, namely, if the furnace tail kiln body 3 and the combustion furnace body 5 are of an integrated structure, a pipe wall of the hot gas conveying main pipe 81 is in rotary sealing connection with the shell wall shared by the combustion furnace body 5 and the furnace tail kiln body 3, if the furnace tail kiln body 3 and the combustion furnace body 5 are of a split structure, a pipe wall of the hot gas conveying main pipe 81 is in rotary sealing connection with the two adjacent shell walls of the combustion furnace body 5 and the furnace tail kiln body 3, an axis of the hot gas conveying main pipe 81 is superposed with an axis of the roller 1, one end of the hot gas conveying main pipe 81 is communicated with the combustion furnace body 5, and the other end of the hot gas conveying main pipe 81 is arranged in a sealing way; two ends of the hot gas conveying branch pipe 82 are respectively fixedly communicated with the hot gas conveying main pipe 81 and the follow-up jacket 2 arranged on the roller 1, and the hot gas conveying branch pipe 82 is positioned in the kiln body 3 at the tail of the furnace.

The length of the hot gas conveying main pipe 81 is set as required, and if the hot gas conveying main pipe 81 needs to be communicated with a certain working condition section inside the roller 1 or the servo jacket 2 or the fixed jacket 12, the length of the hot gas conveying main pipe 81 can be lengthened and extended into the working condition section of the roller 1. The part of the main hot air delivery pipe 81 located inside the drum 1 has one or more parallel pipes, specifically two, three, four, etc. more pipes. If the pipe is many pipes side by side, then the one end of many pipes is collected into behind the pipe and is rotated sealing connection with the steam outlet 53 of furnace body 5, and the other end of many pipes can stretch into the operating mode section independently or collect into a pipe and stretch into the operating mode section. If the hot gas conveying main pipe 81 is communicated with at least one working condition section in the roller 1, one end of the hot gas conveying main pipe 81 extending into the working condition section is open, so that hot gas participates in direct contact heating; if the end of the hot gas conveying main pipe 81 extending into the working condition section is open and is communicated with the follow-up jacket 2, the gas which is indirectly heated in the follow-up jacket 2 enters the hot gas conveying main pipe 81, then the heated gas enters the working condition section to be directly heated in a contact manner, and finally the gas in the working condition section enters the furnace end device and is discharged; if one end of the hot gas conveying main pipe 81 extending into the working condition section is closed and is communicated with the follow-up jacket 2, the heating gas in the hot gas conveying main pipe 81 enters the follow-up jacket 2 and is discharged into the furnace end device together with the gas in the follow-up jacket 2 through the follow-up jacket 2. If the end of the hot gas delivery main pipe 81 extending into the working condition section is open and is communicated with the fixed jacket 12, the heated gas in the hot gas delivery main pipe 81 enters the fixed jacket 12 and is discharged together with the gas in the fixed jacket 12 through the gas outlet of the fixed jacket 12. As shown in fig. 1, if the main hot gas delivery pipe 81 does not extend into the drum 1, the length of the main hot gas delivery pipe 81 is short, and one end of the main hot gas delivery pipe 81 is only in communication with the branch hot gas delivery pipe 82. Because the axis of the main hot gas delivery pipe 81 coincides with the axis of the drum 1, the follow-up jacket 2 is fixed on the wall of the drum 1, and one end of the branch hot gas delivery pipe 82 is fixedly communicated with the end of the follow-up jacket 2, the main hot gas delivery pipe 81 is supported and fixed by the branch hot gas delivery pipe 82.

This sectional type rotary furnace during operation, cylinder 1 drive follow-up press from both sides cover 2 and hot gas conveyer pipe 8 and rotate relative tail kiln body 3 together, and pyrolysis gas and solid waste in the cylinder 1 directly discharge from open discharge end, get into tail kiln body 3, and the steam in the furnace body 5 passes through hot gas conveyer pipe 8 and gets into in the follow-up press from both sides cover 2. Because the main hot gas conveying pipe 81 and the branch hot gas conveying pipes 82 are both positioned in the combustion furnace body 5 and the furnace tail kiln body 3, the heat loss in the hot gas conveying process is reduced. And the hot air conveying main pipe 81 positioned in the roller 1 can indirectly heat the materials, so that the heating efficiency is improved.

In the present embodiment, the hot gas delivery manifold 82 is located inside the kiln body 3, as in the hot gas delivery duct 8 of fig. 1, except that: the discharge end of the roller 1 is arranged in a closed manner, and the furnace tail kiln body 3 is in rotary sealing connection with the outer peripheral wall of the discharge end of the roller 1; the furnace tail kiln body 3 is communicated with the discharge end of the roller 1 through a roller wall discharge mechanism 19, wherein the roller wall discharge mechanism 19 refers to fig. 7; the cylinder wall discharging mechanism 19 is sequentially and obliquely inserted into the cylinder 1 from the outside of the cylinder 1 and penetrates through the discharging end, the inlet of the cylinder wall discharging mechanism 19 is positioned in the cylinder 1, and the outlet of the cylinder wall discharging mechanism 19 is positioned in the furnace tail kiln body 3.

During operation, the roller 1 drives the follow-up jacket 2 and the hot gas conveying pipe 8 to rotate together, the pyrolysis gas and the solid waste in the discharge end of the roller 1 are discharged through the cylinder wall discharging mechanism 19 and enter the kiln body 3 at the tail of the furnace, after gas-solid separation, the pyrolysis gas enters the combustion furnace body 5 to be combusted, the generated hot gas is conveyed to the hot gas conveying branch pipe 82 through the hot gas conveying main pipe 81, and finally the hot gas enters the follow-up jacket 2 to be indirectly heated. If hot gas is required to enter the drum 1, a hot gas delivery main 81 may be extended into the drum 1 to participate in the direct contact heating of the material.

The discharging of the pyrolysis gas and the solid waste in the roller 1 is controllable through the roller wall discharging mechanism 19. The discharge end of the roller 1 is open, and the discharge of the hot blast stove without the cylinder wall discharge mechanism 19 is uncontrollable.

As shown in fig. 1, in the present embodiment, the number of the hot gas conveying branch pipes 82 in the above embodiment is multiple, the hot gas conveying branch pipes 82 are uniformly arranged along the conical surface and have an umbrella-shaped structure, and a gap is formed between adjacent hot gas conveying branch pipes 82, so that the discharge of the pyrolysis gas and the solid waste in the drum 1 is not hindered. The hot gas conveying pipe 8 with the umbrella-shaped structure is stable in structure, the hot gas conveying branch pipe 82 is preferably a straight pipe, the conveying path is short, and the hot gas conveying branch pipe 82 is conveniently and fixedly communicated with the end part of the follow-up jacket 2.

Of course, the hot gas delivery branch pipe 82 may also be an arc pipe, a bent pipe, or the like, as long as the fixed communication between the hot gas delivery branch pipe 82 and the servo jacket 2 can be achieved.

As shown in fig. 6 and 8, the present embodiment provides another hot gas conveying pipe 8, the discharge end of the drum 1 is open, the furnace tail kiln body 3 is in rotary sealing connection with the peripheral wall of the discharge end of the drum 1, and the furnace tail kiln body 3 is communicated with the discharge end of the drum 1; the hot gas delivery pipe 8 includes a hot gas delivery main pipe 81 and hot gas delivery branch pipes 82; one end of the hot gas conveying main pipe 81 is connected with the shell wall shared by the burner body 5 and the furnace tail kiln body 3 or two adjacent shell walls in a rotating and sealing manner, that is, if the furnace tail kiln body 3 and the burner body 5 are of an integrated structure, the pipe wall of the hot gas conveying main pipe 81 is connected with the shell wall shared by the burner body 5 and the furnace tail kiln body 3 in a rotating and sealing manner, and if the furnace tail kiln body 3 and the burner body 5 are of a split structure, the pipe wall of the hot gas conveying main pipe 81 is connected with the two adjacent shell walls of the burner body 5 and the furnace tail kiln body 3 in a rotating and sealing manner. The axis of the hot gas conveying main pipe 81 coincides with the axis of the roller 1, one end of the hot gas conveying main pipe 81 is communicated with the combustion furnace body 5, the other end of the hot gas conveying main pipe 81 is communicated with at least one working condition section in the roller 1 and/or the follow-up jacket 2 and/or the fixed jacket 12, the hot gas conveying main pipe 81 extends into one or more working condition sections in the roller 1, and one or more parallel pipes, specifically two, three, four and the like, are arranged at the part, located in the roller 1, of the hot gas conveying main pipe 81. If the combustion furnace is provided with a plurality of parallel pipes, one ends of the plurality of pipes are gathered into one pipe and then are connected with the hot air outlet 53 of the combustion furnace body 5 in a rotating and sealing way, and the other ends of the plurality of pipes can independently extend into the working condition section or be gathered into one pipe and extend into the working condition section; the hot gas conveying branch pipe 82 is positioned in the roller 1, one end of the hot gas conveying branch pipe 82 is fixedly communicated with the hot gas conveying main pipe 81, the other end of the hot gas conveying branch pipe 82 is fixed with the inner wall of the roller 1 and is communicated with the servo jacket 2 and/or the fixed jacket 12, namely, the other end of the hot gas conveying branch pipe 82 is fixed with the inner wall of the roller 1 and is communicated with the servo jacket 2 or the fixed jacket 12 through an opening in the inner wall.

In this sectional type rotary furnace, the steam is carried and is responsible for 81 and carry branch pipe 82 to support fixedly through the steam, in operation, cylinder 1 drives follow-up jacket 2 and steam conveyer pipe 8 and rotates relative furnace tail kiln body 3 together, fixed jacket 12 is fixed motionless, pyrolysis gas and solid waste in the cylinder 1 are directly discharged from open discharge end, get into furnace tail kiln body 3 in, steam entering steam in the furnace body 5 carries and is responsible for 81, rethread hot gas carries branch pipe 82 and gets into in follow-up jacket 2 and/or fixed jacket 12, indirect heating.

If one end of the hot gas conveying main pipe 81 extending into the working condition section is open, the hot gas participates in direct contact heating; if one end of the hot gas conveying main pipe 81 extending into the working condition section is open and is communicated with the servo jacket 2, the heated gas directly enters the working condition section through the hot gas conveying main pipe 81, and simultaneously enters the servo jacket 2 through the hot gas conveying branch pipe 82, enters the hot gas conveying main pipe 81 after indirect heating is completed, then enters the working condition section for direct contact heating, and finally the gas in the working condition section enters the furnace end device and is discharged; if one end of the hot gas conveying main pipe 81 extending into the working condition section is closed and is communicated with the follow-up jacket 2, the heating gas in the hot gas conveying main pipe 81 enters the follow-up jacket 2 and is discharged into the furnace end device through the follow-up jacket 2 together with the heating gas entering the follow-up jacket 2 through the hot gas conveying branch pipe 82. If the end of the main hot gas delivery pipe 81 extending into the operating section is closed and communicated with the fixed jacket 12, the heated gas in the main hot gas delivery pipe 81 enters the fixed jacket 12 and is discharged through the gas outlet of the fixed jacket 12 together with the gas entering the fixed jacket 12 through the branch hot gas delivery pipes 82.

Since most of the main hot gas delivery pipe 81 and the branch hot gas delivery pipes 82 are located inside the drum 1, heat loss during hot gas delivery is reduced. Simultaneously, hot gas conveyer pipe 8 is located cylinder 1, and the in-process that hot gas carried in hot gas conveyer pipe 8 can carry out indirect heating to the material, has further improved heating efficiency.

Further, the number of the hot air delivery branch pipes 82 is plural, and preferably, the axes of the plural hot air delivery branch pipes 82 are located in the same cross section of the drum 1 and are arranged in a radial shape, so that the structural stability can be improved, and the delivery path is short. Of course, the plurality of hot gas delivery branch pipes 82 may be arranged arbitrarily as long as they can be fixed to the drum 1 and communicate with the follower jacket 2 or the fixed jacket 12. If the main hot gas delivery pipe 81 has a plurality of pipes, each of the pipes communicates with the follower jacket 2 or the fixed jacket 12 through one branch hot gas delivery pipe 82.

As shown in fig. 7, the hot gas delivery pipe 8 in the present embodiment is the same as the hot gas delivery pipe 8 in fig. 6 and 8 except that: the discharge end of the roller 1 is closed. The furnace tail kiln body 3 is in rotary sealing connection with the outer peripheral wall of the discharge end of the roller 1; the furnace tail kiln body 3 is communicated with the discharge end of the roller 1 through a roller wall discharge mechanism 19; the cylinder wall discharging mechanism 19 is sequentially and obliquely inserted into the cylinder 1 from the outside of the cylinder 1 and penetrates through the discharging end, the inlet of the cylinder wall discharging mechanism 19 is positioned in the cylinder 1, and the outlet of the cylinder wall discharging mechanism 19 is positioned in the furnace tail kiln body 3.

During operation, cylinder 1 drives follow-up clamp cover 2 and hot gas conveyer pipe 8 and rotates together, and pyrolysis gas and solid waste in the discharge end of cylinder 1 are discharged through section of thick bamboo wall discharge mechanism 19, get into the tail kiln body 3 of stove, and after the gas-solid separation, pyrolysis gas gets into the burning furnace body 5 burning, and the steam of production is carried main pipe 81 through the steam and is got into cylinder 1 in, participates in the direct contact heating of material, and steam carries out the indirect heating of material in getting into follow-up clamp cover 2 and/or the fixed clamp cover 12 through steam conveying branch pipe 82.

Further, in this embodiment, the cylinder wall discharging mechanism 19 is a cylinder wall spiral discharging mechanism, and the cylinder wall spiral discharging mechanism discharges materials by spiral rotation.

As shown in fig. 9, 10, 13, 15, and 16, the present embodiment provides another furnace tail device, which further includes a furnace tail gas inlet barrel 14, the furnace tail gas inlet barrel 14 is fixedly disposed, the furnace tail gas inlet barrel 14 is rotatably and hermetically connected to the outer peripheral wall of the drum 1 near the discharge end or the outer wall of the follow-up jacket 2, the furnace tail gas inlet barrel 14 is communicated with at least one working condition section of the follow-up jacket 2 and/or the fixed jacket 12 and/or the drum 1, the furnace tail gas inlet barrel 14 is provided with a hot gas inlet and a third ash discharge port 141, and the hot gas inlet is communicated with the hot gas outlet 53 of the combustion furnace body 5 through a hot gas delivery pipe 8.

The furnace tail device is different from the above furnace tail devices in that a furnace tail air inlet cylinder 14 is added, namely heating gas of the combustion furnace body 5 is not directly introduced into at least one working condition section of the follow-up jacket 2 and/or the fixed jacket 12 and/or the roller 1 through a hot gas conveying pipe 8, but the heating gas of the combustion furnace body 5 is introduced into the furnace tail air inlet cylinder 14 through the hot gas conveying pipe 8, and then the hot gas is introduced into at least one working condition section of the follow-up jacket 2 and/or the fixed jacket 12 and/or the roller 1 through the furnace tail air inlet cylinder 14. So set up, hot gas conveyer pipe 8 then sets up in the outside of burner block 5, the stove tail kiln body 3 and cylinder 1, can realize the transport of steam equally.

Specifically, as shown in fig. 9, the discharge end of the drum 1 is open, the furnace tail kiln body 3 is directly communicated with the discharge end of the drum 1, the furnace tail gas inlet cylinder 14 is hermetically sleeved on the outer wall of the drum 1, the furnace tail gas inlet cylinder 14 is fixed, the combustion furnace body 5 is communicated with the hot gas inlet of the furnace tail gas inlet cylinder 14 through a hot gas conveying pipe 8, and the furnace tail gas inlet cylinder 14 is communicated with the end of the follow-up jacket 2. If the drum 1 is externally provided with a fixed jacket 12, the furnace tail gas inlet barrel 14 communicates with the fixed jacket 12 through an external pipe, or communicates through a pipe provided inside the drum 1. If heating gas is required to be introduced into the working condition sections, the furnace tail gas inlet cylinder 14 is communicated with at least one working condition section through a gas supply pipeline 22 arranged inside the roller 1.

Further, on the basis of the sectional type rotary furnace shown in fig. 9, the discharge end of the roller 1 is arranged in a closed manner, the furnace tail kiln body 3 is connected with the outer peripheral wall of the discharge end of the roller 1 in a rotating and sealing manner, and the furnace tail kiln body 3 is communicated with the working condition section, close to the discharge end, of the roller 1 through a roller wall discharge mechanism 19; the cylinder wall discharging mechanism 19 is sequentially and obliquely inserted into the cylinder 1 from the outside of the cylinder 1 and penetrates through the discharging end, the inlet of the cylinder wall discharging mechanism 19 is positioned in the working condition section, close to the discharging end, of the cylinder 1, and the outlet of the cylinder wall discharging mechanism 19 is positioned in the furnace tail kiln body 3. The rest structures, such as the arrangement of the furnace tail gas inlet cylinder 14, the servo jacket 2, the fixed jacket 12 and the like are the same as those shown in FIG. 9, and the sectional type rotary furnace realizes controllable discharging through the cylinder wall discharging mechanism 19.

As shown in fig. 10, 13, 15, and 16, for the furnace tail device provided with the furnace tail inlet cylinder 14, the discharge end of the drum 1 in this embodiment is closed, the discharge end of the drum 1 is fixedly provided with the central discharge mechanism 17, the furnace tail kiln body 3 is in indirect rotary sealing connection with the discharge end of the drum 1 through rotary sealing connection with the central discharge mechanism 17, and the furnace tail kiln body 3 is in indirect communication with the working condition section, close to the discharge end, of the drum 1 through the central discharge mechanism 17; the furnace tail gas inlet cylinder 14 is communicated with the end part of the follow-up jacket 2; if the drum 1 is externally provided with a fixed jacket 12, the furnace tail gas inlet barrel 14 communicates with the fixed jacket 12 through an external pipe, or communicates through a pipe provided inside the drum 1. If heating gas is required to be introduced into the working section, the furnace tail gas inlet cylinder 14 is communicated with at least one working section and/or the follow-up jacket 2 and/or the fixed jacket 12 through a gas supply pipeline 22 arranged inside the roller 1.

Taking fig. 10 as an example, during operation, the drum 1 and the central discharging mechanism 17 rotate together, the material and the gas phase at the discharging end of the drum 1 are both conveyed into the furnace tail kiln body 3 through the central discharging mechanism 17, after gas-solid separation in the furnace tail kiln body 3, the pyrolysis gas enters the combustion furnace body 5 (not shown in fig. 10, refer to fig. 9) for combustion, the generated heating gas is introduced into the furnace tail gas inlet cylinder 14 through the hot gas conveying pipe 8 (not shown in fig. 10, refer to fig. 9), and then the heating gas enters the follower jacket 2 and/or the fixed jacket 12 for indirect heating. The heating gas in the furnace tail gas inlet cylinder 14 is communicated with at least one working condition section of the roller 1 and/or the follow-up jacket 2 and/or the fixed jacket 12 through a gas feeding pipeline 22.

Preferably, the furnace tail gas inlet cylinder 14 covers the outer part of the discharge end of the roller 1, and two sides of the furnace tail gas inlet cylinder 14 are respectively connected with the wall of the discharge end of the roller 1 and the outer wall of the central discharge mechanism 17 in a rotating and sealing manner. So set up, can cover the ejection of compact end of cylinder 1 in stove tail inlet cylinder 14, maintain the temperature of discharge end, and stove tail inlet cylinder 14 is less with the rotary seal face of central discharge mechanism 17 rotary seal connection, is favorable to sealing. Of course, both sides of the furnace tail gas inlet cylinder 14 can also be connected with the cylinder wall at the discharge end of the roller 1 in a rotating and sealing manner, only the discharge end of the roller 1 is exposed to the outside, which is not beneficial to heat preservation, and the rotating sealing surfaces at both ends of the furnace tail gas inlet cylinder 14 are large.

As shown in fig. 10, 12, and 13 to 16, the air supply duct 22 for communicating the furnace tail air inlet cylinder 14 with the operating condition section in the drum 1 is optimized, the air supply duct 22 includes an air supply branch pipe 221 and an air supply main pipe 222, the air supply branch pipe 221 communicates with the furnace tail air inlet cylinder 14, one end of the air supply main pipe 222 communicates with the air supply branch pipe 221, and the other end of the air supply main pipe 222 communicates with at least one operating condition section of the drum 1 and/or the servo jacket 2 and/or the fixed jacket 12. The main gas supply pipe 222 has one or more pipes arranged in parallel, and specifically, may have two, three, four, or more pipes. The number of the supply branch pipes 221 may be one or more, and the plurality of supply branch pipes 221 are preferably radially communicated with the main supply pipe 222 to improve the supply uniformity, and if the main supply pipe 222 has a plurality of pipes, each pipe is communicated with one supply branch pipe 221.

During operation, the heated gas in the combustion furnace body 5 enters the furnace tail gas inlet cylinder 14, and then the heated gas in the furnace tail gas inlet cylinder 14 enters the gas supply main pipe 222 through the gas supply branch pipe 221. If the gas supply main pipe 222 is communicated with the working condition section, the gas supply main pipe 222 guides the heating gas into the working condition section to carry out direct contact heating on the material, and finally the material is directly discharged into the furnace end device; as shown in fig. 10, 13 and 15, if the end of the gas supply main pipe 222 extending into the working condition section is open and is communicated with the servo jacket 2, the gas supply main pipe 222 guides the heating gas into the working condition section to directly heat, and at the same time, the heating gas directly entering the servo jacket 2 through the furnace tail gas inlet cylinder 14 enters the gas supply main pipe 222 after indirect heating is completed, and then is guided into the working condition section to directly contact and heat; as shown in fig. 16, if one end of the gas supply main pipe 222 extending into the operating section is closed and is communicated with the servo jacket 2, the gas supply main pipe 222 introduces the heating gas into the servo jacket 2, and discharges the heating gas into the furnace end device through the servo jacket 2 together with the heating gas directly introduced into the servo jacket 2 through the furnace tail gas inlet cylinder 14; if the end of the gas supply main pipe 222 extending into the operation section is closed and communicates with the fixed jacket 12, the gas supply main pipe 222 introduces the heating gas into the fixed jacket 12 and discharges the heating gas together with the heating gas in the fixed jacket 12 from the outlet of the fixed jacket 12 itself.

As shown in fig. 10 to 11, in the present embodiment, the central discharging mechanism 17 is a central spiral discharging mechanism or a central piston discharging mechanism, a material turning plate 18 is fixed at an inlet of the central discharging mechanism 17, a plate surface of the material turning plate 18 is parallel to an axis of the drum 1, the material turning plate 18 is extended and fixed on an inner wall of the drum 1, and the material turning plate 18, the central discharging mechanism 17 and the drum 1 rotate together; the central spiral discharging mechanism comprises a central discharging barrel, a central spiral and a second power part, one end of the central discharging barrel is fixed at the discharging end of the roller 1, the other end of the central discharging barrel is connected with the furnace tail kiln body 3 in a rotating and sealing mode, the central discharging barrel is connected with the furnace tail air inlet barrel 14 in a rotating and sealing mode, the central discharging barrel is provided with an inlet and an outlet, the inlet is formed in the barrel wall, the outlet is preferably arranged at the end portion of the central discharging barrel, and the central discharging barrel, the roller 1 and the material turning plate 18 rotate together as a whole; the central spiral is rotatably arranged on the central discharging barrel; the second power component is in driving connection with the central spiral and used for driving the central spiral to rotate relative to the central discharging barrel.

When the central spiral discharging mechanism works, the roller 1, the material turning plate 18 and the central discharging barrel rotate together, the material turning plate 18 wraps up materials in the roller 1, the material turning plate is guided into an inlet of the central discharging barrel, the second power part works to drive the central spiral to rotate, the materials are conveyed into the furnace tail kiln body 3, and gas in the discharging end of the roller 1 can enter the furnace tail kiln body 3 through the central spiral discharging mechanism. The discharging of the drum 1 is controlled by starting and stopping the second power component, so that the controllable discharging is realized.

Similarly, the central piston discharging mechanism realizes the material conveying through the reciprocating movement of the piston, and is not specifically described herein.

As shown in fig. 13, 16 and 17, in the present embodiment, the sectional rotary kiln further includes a furnace exhaust box 20 fixedly disposed, the drum 1 passes through the furnace exhaust box 20, the drum wall of the drum 1 is rotatably and hermetically connected with the furnace exhaust box 20, a working section or a follow-up jacket 2 corresponding to the furnace exhaust box 20 in the drum 1 is communicated with the furnace exhaust box 20, and the furnace exhaust box 20 is provided with a second exhaust port 201 and a fourth ash discharge port 202.

During operation, gas in a certain working condition section in the roller 1 or gas in the follow-up jacket 2 can be introduced into the fixedly arranged furnace exhaust box 20, the gas is exhausted through the second exhaust port 201 of the furnace exhaust box 20, and dust separated from the gas is exhausted from the fourth dust exhaust port 202. Therefore, the gas in the working condition section or the gas in the follow-up jacket 2 does not need to enter the furnace end kiln body 10 to be discharged, and the axial exhaust position of the roller 1 can be selected at will.

Further, in the present embodiment, as shown in fig. 13 and 17, the drum 1 is provided with a gas outlet tube group 23 corresponding to the wall of the oven exhaust box 20, and the interior of the drum 1 is communicated with the oven exhaust box 20 through the gas outlet tube group 23.

During operation, the gas outlet pipe group 23 rotates along with the roller 1, and the outlet of the gas outlet pipe group 23 is always communicated with the fixedly arranged exhaust box 20 in the furnace. The gas in a certain operating section in the drum 1 is discharged into the exhaust box 20 of the furnace through the gas outlet tube group 23.

Specifically, gas outlet nest of tubes 23 includes vertical pipe and violently manages, and in vertical pipe was fixed in cylinder 1, vertical pipe and stove exhaust case 20 intercommunication, violently manage and communicate with vertical pipe, violently manage both ends all with the inside intercommunication of cylinder 1, violently manage and have the certain distance with between the 1 inner wall of cylinder, prevent that the material of cylinder 1 from getting into violently intraductally.

Of course, the gas outlet tube group 23 may also include only a vertical tube, as long as the gas in the operating section can be discharged into the exhaust box 20 in the furnace, and is not limited to the structure illustrated in the embodiment.

As shown in fig. 16, when the furnace exhaust box 20 is communicated with the servo jacket 2, a through hole is directly opened on the outer wall of the servo jacket 2, and the through hole is always communicated with the furnace exhaust box 20 during the rotation of the drum 1, so that the heated gas heated in the servo jacket 2 is exhausted into the furnace exhaust box 20 through the through hole and then exhausted through the second exhaust port 201 of the furnace exhaust box 20.

On the basis, when one end of the hot gas delivery main pipe 81 or the gas supply main pipe 222 extending into the working condition section is closed and communicated with the follow-up jacket 2, the gas which is indirectly heated in the hot gas delivery main pipe 81 and the gas supply main pipe 222 firstly enters the follow-up jacket 2 and finally enters the exhaust box 20 of the furnace and then is exhausted, the heated gas does not need to be exhausted through the furnace end kiln body 10, and the exhaust position of the roller 1 in the axial direction can be selected at will.

As shown in fig. 20 to 22, the interior of the drum 1 is sequentially divided into two independent working condition sections from the feeding end to the discharging end through a segmentation plate 15, the two working condition sections are sequentially a drying section i and a carbonization section ii, two fixing jackets 12 corresponding to two adjacent working condition sections and a furnace tail air inlet tube 14 and a fixing jacket 12 corresponding to the carbonization section ii are communicated through a tube inner tube 26 and/or a tube outer tube 25, the tube inner tube 26 is fixed in the drum 1, and the tube outer tube 25 is located outside the drum 1.

In the embodiment, the sectional type rotary furnace also comprises at least one fixed clapboard which is arranged in the working condition section of the roller 1; the fixed partition board is fixed in the roller 1, an opening is arranged on the fixed partition board, and the opening is close to the wall of the roller 1.

The during operation, cylinder 1 is along same direction continuous rotation, and when the opening of fixed baffle was located the below, the solid material in cylinder 1 can get into the downstream through the opening, and meanwhile, the opening can be blockked by solid material, the circulation of restriction gas, and when the opening of fixed baffle was located the top, the opening was not blockked by solid material, and gas can circulate. Through set up fixed baffle in the operating mode section, can carry out the subregion to each operating mode section, the gaseous phase circulation between the different subregion of part restriction in each operating mode section to be favorable to the formation of the temperature gradient of each subregion, and the independence of operating mode.

Further, in this embodiment, for the case that the temperature difference between some adjacent working condition sections is large, the outer insulating layers are arranged on the two side plate surfaces of the segmented plate 15, or the insulating interlayer is arranged inside the segmented plate 15, so that the temperature isolation between the two working condition sections is realized, and the reaction of each working condition section is better completed.

As shown in fig. 12, in the present embodiment, an insulating layer 21 is disposed on the wall of the drum 1 to improve the insulating effect of the drum 1 and reduce the energy loss.

As shown in fig. 1, the drum 1 is externally provided with a driving means for driving the drum 1 to continuously rotate in the same direction around its axis and a supporting means. The support means are intended to rotate the support cylinder 1 continuously in the same direction around its axis.

As shown in fig. 23 and 24, the fourteenth rotary kiln is different from the sixth rotary kiln shown in fig. 10 in that the follower jacket 2 is not provided on the cylindrical wall of the drum 1, the air supply duct 22 is not provided with the air supply branch pipe 221, the air supply duct 22 includes a plurality of air supply main pipes 222 (i.e., heat exchange pipes) provided in the drum 1, and at least some of the air supply main pipes 222 are provided near the cylindrical wall of the drum 1, so that the solid material in the drum 1 can be scooped up. In a specific application, the air supply main pipe 222 may be disposed parallel to the axis of the drum 1. One end of the main gas supply pipe 222 is directly communicated with the furnace tail gas inlet cylinder 14, the other end of the main gas supply pipe hermetically penetrates through the subsection plate 15 to reach a working condition section, close to the feed end, of the roller 1, a confluence guide plate 27 is arranged in the working condition section, the edge of the confluence guide plate 27 is hermetically connected with the inner wall of the roller 1, a hot gas confluence port is arranged at the central position of the confluence guide plate 27, and the position of the hot gas confluence port is always higher than that of solid materials in the working condition section. In addition, in the embodiment, the feeding mechanism 11 is not arranged at the axial position of the drum 1, but the exhaust pipeline 16 is arranged at the axial position of the drum 1, and the pyrolysis gas in the working condition section can be exhausted from the end part of the drum 1 by using the exhaust pipeline 16, so that the arrangement of the exhaust box 20 in the furnace is not needed as shown in fig. 13.

As shown in fig. 23, the discharge end of the drum 1 is sealed and fixedly provided with a central discharging mechanism 17, the inside of the drum 1 is sequentially divided into three mutually independent working condition sections from the feed end to the discharge end through two segment plates 15, the furnace tail kiln body 3 is in indirect rotary sealing connection with the discharge end of the drum 1 through rotary sealing connection with the central discharging mechanism 17, the furnace tail kiln body 3 is indirectly communicated with the working condition section of the drum 1 close to the discharge end through the central discharging mechanism 17, and the gas supply main pipe 222 is hermetically communicated with the furnace tail gas inlet cylinder 14 through the discharge end of the drum 1. When in work, the roller 1 and the central discharging mechanism 17 rotate together, the material and the gas phase at the discharging end of the roller 1 are both conveyed into the furnace tail kiln body 3 through the central discharging mechanism 17, after the gas and the solid in the furnace tail kiln body 3 are separated, the pyrolysis gas enters the burner body 5 (not shown in fig. 23, refer to fig. 9) for combustion, and the generated heating gas is introduced into the furnace tail gas inlet barrel 14 through the hot gas delivery pipe 8 (not shown in fig. 10, refer to fig. 9), and then, the heating gas enters the gas main pipe 222 to indirectly heat the two working condition sections of the roller 1 close to the discharge end, the heating gas comes out from the gas main pipe 222 and meets the confluence guide plate 27, and enters the working section of the roller 1 close to the feeding end through a hot air confluence hole at the central position of the confluence guide plate 27, the solid material is heated in the working condition section by direct contact, and finally the heated gas is discharged from the discharge end of the roller 1.

The sectional rotary kiln shown in FIG. 23 has the following advantages: the heating jacket of the equipment is cancelled, the weight of the equipment is reduced, and the power required by the operation of the equipment is reduced; the total surface area of the plurality of air supply main pipes 222 is far larger than that of the heating jacket, so that the capacity of the equipment is greatly improved; in the heating gas feeding main pipe 222, the cylinder body of the roller 1 is not directly contacted with the heating gas in a high-temperature state, and compared with a structure that the heating gas is fed to the heating jacket, the wall temperature of the roller 1 is reduced, the heat dissipation loss is small, and the heat efficiency is high; the cylinder body of the roller 1 is not directly contacted with the heating gas in a high-temperature state, so that the requirement of the roller 1 on the cylinder body material is reduced, and the material cost is reduced; the pipe wall of the main gas supply pipe 222 is thin, and meanwhile, the main gas supply pipe 222 can stir the materials in the materials, so that the materials are fully contacted, the heat exchange coefficient is greatly improved, and the productivity is obviously increased.

In order to clean the inside of the main gas supply pipe 222 conveniently, the inspection port 142 is arranged on the furnace tail gas inlet cylinder 14 in the embodiment, the inspection port 142 is closed by a cover plate when the equipment runs, when the inside of the main gas supply pipe 222 needs to be cleaned, the cover plate is opened, the inside of the main gas supply pipe 222 is cleaned by a special movable spiral cleaning tool, the heat exchange effect cannot be influenced by equipment scaling, and the capacity of the equipment is reduced.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. 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 invention. Thus, the present invention 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

1. The utility model provides a sectional type rotary furnace, includes cylinder (1), furnace end device and stove tail device, the both ends of cylinder (1) respectively with fixed motionless setting the furnace end device with stove tail device rotates sealing connection, same direction continuous rotation can be followed in cylinder (1), its characterized in that, sectional type rotary furnace still includes:

one or more segmented plates (15) are arranged in the roller (1), the edges of the segmented plates (15) are hermetically connected with the inner wall of the roller (1) and are used for axially dividing the roller (1) into a plurality of mutually independent working condition sections;

and the two ends of the solid-phase conveying device (9) are communicated with the two adjacent working condition sections and are used for conveying the solid materials between the two adjacent working condition sections.

2. The segmented rotary furnace according to claim 1, wherein the solid phase conveying device (9) is a screw conveyor which is obliquely inserted into two adjacent working condition sections corresponding to the screw conveyor in sequence from the outside of the roller (1) and penetrates through the segmented plate (15), a material inlet (911) of the screw conveyor is positioned in one of the two adjacent working condition sections close to the burner device, and a material outlet (912) of the screw conveyor is positioned in the other of the two adjacent working condition sections far away from the burner device.

3. The segmented rotary furnace according to claim 2, wherein the screw conveyor comprises a power component (93), a screw component (92) and a cylinder (91), the screw component (92) is arranged in the cylinder (91), the screw component (92) is in transmission connection with the power component (93), a material outlet (912) of the screw conveyor is arranged at the end part of the cylinder (91), and the cylinder (91) is not arranged at the part of the screw conveyor which is positioned in the working section close to the furnace end device.

4. The segmented rotary furnace according to claim 3 wherein the spiral member (92) is an interrupted or continuous spiral; and/or a distance exists between one end of the spiral component (92) close to a material outlet (912) of the spiral conveyor and the end of the barrel (91).

5. The segmented rotary furnace according to claim 3, further comprising a controller and a position switch, wherein the power component (93) and the position switch are in signal connection with the controller, the position switch is arranged on the roller (1), when the solid phase conveying device (9) is in a material accumulation range right below the roller (1), the position switch is triggered, the controller controls the power component (93) to operate, and the power component (93) drives the spiral component (92) to move.

6. The segmented rotary furnace of claim 5, wherein the position switch is any one or combination of a photoelectric switch and a magnetic induction switch.

7. Sectional type rotary furnace according to claim 1, characterized in that the solid phase transportation device (9) is arranged outside the drum (1), and the inlet and outlet of the solid phase transportation device (9) are connected with the drum wall of two adjacent working sections corresponding to the solid phase transportation device (9).

8. Sectional rotary kiln according to claim 7, characterized in that the solid phase conveyor (9) is a screw conveyor or a piston conveyor.

9. The segmented rotary furnace of claim 1, wherein the burner apparatus comprises:

the furnace end kiln body (10), one or more exhaust chambers are arranged in the furnace end kiln body (10), each exhaust chamber is provided with a first exhaust port (101) and a first ash discharge port (102), the furnace end kiln body (10) is fixedly and fixedly connected with the feeding end of the roller (1) in a rotating and sealing mode, and each exhaust chamber is correspondingly communicated with one working condition section of the roller (1);

the feeding mechanism (11) penetrates through the furnace end kiln body (10) in a sealing mode and stretches into the roller (1), and a feeding hole is formed in the feeding mechanism (11).

10. Segmented rotary kiln according to claim 9, characterized in that it further comprises a follower jacket (2) and/or a stationary jacket (12);

the follow-up jacket (2) is fixed on the wall of the roller (1), a heating medium is introduced into the follow-up jacket (2), and the follow-up jacket (2) is communicated with one exhaust chamber;

the fixed jacket (12) is fixedly arranged, the roller (1) penetrates through the fixed jacket (12), the wall of the roller (1) is connected with the fixed jacket (12) in a rotating and sealing mode, and a heating medium is introduced into the fixed jacket (12).

11. Sectional type rotary kiln according to claim 10, characterized in that the feed end of the drum (1) has a reducing section with an outer diameter smaller than the outer diameter of the remaining shaft section of the drum (1), the furnace head kiln body (10) being in rotary sealing connection with the reducing section.

12. Sectional rotary kiln according to claim 1, characterized in that it further comprises a follower jacket (2) and/or a stationary jacket (12);

the follow-up jacket (2) is fixed on the wall of the roller (1), and a heating medium is introduced into the follow-up jacket (2);

13. Sectional rotary kiln according to one of the claims 10 to 12, characterized in that the follower jacket (2) is in communication with at least one of the operating sections of the drum (1); and/or the stationary jacket (12) is in communication with at least one of the operating sections of the drum (1).

14. The segmented rotary furnace of any one of claims 10 to 12, wherein the furnace tail device comprises:

the kiln body (3) of stove tail, pyrolysis gas export (32) and bin outlet (31) have been seted up in the kiln body (3) of stove tail, the kiln body of stove tail (3) immovably with the discharge end of cylinder (1) is direct or indirect to rotate sealing connection, the kiln body of stove tail (3) with being close to the discharge end of cylinder (1) the operating mode section is direct or indirect intercommunication.

15. The sectional type rotary furnace according to claim 14, further comprising a combustion furnace body (5) and a burner (6), wherein the combustion furnace body (5) is provided with an air inlet (51), a hot gas outlet (53) and a second ash discharge port (52), the burner (6) is communicated with the combustion furnace body (5) and is used for generating heating gas through combustion in the combustion furnace body (5), the air inlet (51) is used for introducing oxygen-containing gas, and the hot gas outlet (53) is communicated with at least one working condition section of the follow-up jacket (2) and/or the fixed jacket (12) and/or the roller (1) through a hot gas conveying pipe (8).

16. The segmented rotary kiln according to claim 15, characterized in that the pyrolysis gas outlet (32) of the kiln body (3) is communicated with the burner body (5) through a pyrolysis gas conveying pipe (4) for passing the pyrolysis gas in the kiln body (3) into the burner body (5) for combustion.

17. Segmented rotary kiln according to claim 16, characterized in that the pyrolysis gas duct (4) is arranged inside the furnace body (5), one end of the pyrolysis gas duct (4) communicating with the pyrolysis gas outlet (32) and the other end entering inside the furnace body (5).

18. The sectional type rotary furnace according to any one of claims 15 to 17, wherein a middle partition plate (7) is further arranged in the combustion furnace body (5), the middle partition plate (7) divides the combustion furnace body (5) into a combustion area and a hot gas discharge area, the combustor (6), the air inlet (51) and the second ash discharge port (52) are all located in the combustion area, the hot gas outlet (53) is located in the hot gas discharge area, and the combustion area is communicated with the upper part of the hot gas discharge area.

19. The segmented rotary furnace according to claim 16, characterized in that the furnace tail body (3) and the furnace body (5) are of an integrated or separate structure.

20. The sectional type rotary furnace according to claim 15, wherein the discharge end of the roller (1) is arranged in an open manner, the furnace tail kiln body (3) is in rotary sealing connection with the peripheral wall of the discharge end of the roller (1), and the furnace tail kiln body (3) is directly communicated with the working section of the roller (1) close to the discharge end;

the hot gas delivery pipe (8) comprises:

the hot gas conveying main pipe (81) is connected with the hot gas outlet (53) in a rotating and sealing mode, the axis of the hot gas conveying main pipe (81) coincides with the axis of the roller (1), one end of the hot gas conveying main pipe (81) is communicated with the combustion furnace body (5), the other end of the hot gas conveying main pipe (81) is closed or communicated with at least one working condition section in the roller (1) and/or the follow-up jacket (2) and/or the fixed jacket (12), and one or more parallel pipes are arranged on the part, located in the roller (1), of the hot gas conveying main pipe (81);

and the two ends of the hot gas conveying branch pipe (82) are respectively fixedly communicated with the hot gas conveying main pipe (81) and the follow-up jacket (2) arranged on the roller (1), and the hot gas conveying branch pipe (82) is positioned in the kiln body (3) at the tail of the furnace.

21. The segmented rotary furnace according to claim 15, characterized in that the discharge end of the drum (1) is closed, and the furnace tail kiln body (3) is in rotary sealing connection with the peripheral wall of the discharge end of the drum (1); the furnace tail kiln body (3) is communicated with a working condition section, close to the discharge end, of the roller (1) through a roller wall discharge mechanism (19); the cylinder wall discharging mechanism (19) is sequentially and obliquely inserted into the cylinder (1) from the outside of the cylinder (1) and penetrates through the discharging end, the inlet of the cylinder wall discharging mechanism (19) is positioned in the working condition section of the cylinder (1) close to the discharging end, and the outlet of the cylinder wall discharging mechanism (19) is positioned in the furnace tail kiln body (3);

the hot gas delivery pipe (8) comprises:

22. The segmented rotary kiln according to claim 20 or 21, characterized in that the number of the hot gas delivery branch pipes (82) is plural, the hot gas delivery branch pipes (82) are uniformly arranged along a conical surface in an umbrella structure, or the hot gas delivery branch pipes are uniformly arranged along a plane perpendicular to the axis of the hot gas delivery main pipe; gaps are arranged between the adjacent hot gas delivery branch pipes (82).

23. The sectional type rotary furnace according to claim 15, wherein the discharge end of the roller (1) is arranged in an open manner, the furnace tail kiln body (3) is in rotary sealing connection with the peripheral wall of the discharge end of the roller (1), and the furnace tail kiln body (3) is directly communicated with the working section of the roller (1) close to the discharge end;

the hot gas delivery pipe (8) comprises:

the hot gas conveying main pipe (81), one end of the hot gas conveying main pipe (81) is connected with the hot gas outlet (53) in a rotating and sealing mode, the axis of the hot gas conveying main pipe (81) is overlapped with the axis of the roller (1), one end of the hot gas conveying main pipe (81) is communicated with the combustion furnace body (5), the other end of the hot gas conveying main pipe (81) is communicated with at least one working condition section in the roller (1) and/or the servo jacket (2) and/or the fixed jacket (12), and one or more parallel pipes are arranged on the part, located in the roller (1), of the hot gas conveying main pipe (81);

the hot gas conveying branch pipe (82) is located in the roller (1), one end of the hot gas conveying branch pipe (82) is fixedly communicated with the hot gas conveying main pipe (81), and the other end of the hot gas conveying branch pipe (82) is communicated with the servo jacket (2) and/or the fixed jacket (12).

24. The segmented rotary furnace according to claim 15, characterized in that the discharge end of the drum (1) is closed, and the furnace tail kiln body (3) is in rotary sealing connection with the peripheral wall of the discharge end of the drum (1); the furnace tail kiln body (3) is communicated with a working condition section, close to the discharge end, of the roller (1) through a roller wall discharge mechanism (19); the cylinder wall discharging mechanism (19) is sequentially and obliquely inserted into the cylinder (1) from the outside of the cylinder (1) and penetrates through the discharging end, the inlet of the cylinder wall discharging mechanism (19) is positioned in the working condition section, close to the discharging end, of the cylinder (1), and the outlet of the cylinder wall discharging mechanism (19) is positioned in the furnace tail kiln body (3);

the hot gas delivery pipe (8) comprises:

25. Segmented rotary kiln according to claim 23 or 24, characterized in that the number of hot gas supply branches (82) is several, the hot gas supply branches (82) being arranged radially and uniformly.

26. Segmented rotary kiln according to claim 21 or 24, characterized in that the drum wall tapping (19) is a drum wall screw tapping.

27. The segmented rotary furnace of claim 15, wherein the furnace tail apparatus further comprises:

the furnace tail gas inlet cylinder (14) is fixedly arranged, the furnace tail gas inlet cylinder (14) is connected with the outer peripheral wall, close to the discharge end, of the roller (1) or the outer wall of the follow-up jacket (2) in a rotating and sealing mode, the furnace tail gas inlet cylinder (14) is communicated with the follow-up jacket (2) and/or the fixed jacket (12) and/or at least one working condition section of the roller (1), a hot gas inlet and a third ash discharge port (141) are formed in the furnace tail gas inlet cylinder (14), and the hot gas inlet is communicated with a hot gas outlet (53) of the combustion furnace body (5).

28. The segmented rotary furnace according to claim 27, characterized in that the discharge end of the drum (1) is closed, the furnace tail kiln body (3) is in rotary sealing connection with the peripheral wall of the discharge end of the drum (1), and the furnace tail kiln body (3) is communicated with the working section of the drum (1) close to the discharge end through a drum wall discharge mechanism (19); the drum wall discharging mechanism (19) is sequentially obliquely inserted into the drum (1) from the outside of the drum (1) and penetrates through the discharging end, the inlet of the drum wall discharging mechanism (19) is positioned in the working condition section, close to the discharging end, of the drum (1), and the outlet of the drum wall discharging mechanism (19) is positioned in the furnace tail kiln body (3).

29. The segmented rotary furnace according to claim 27, characterized in that the discharge end of the drum (1) is closed, a central discharge mechanism (17) is fixedly arranged at the discharge end of the drum (1), the furnace tail kiln body (3) is in indirect rotary sealing connection with the discharge end of the drum (1) through rotary sealing connection with the central discharge mechanism (17), and the furnace tail kiln body (3) is in indirect communication with the working condition section of the drum (1) close to the discharge end through the central discharge mechanism (17).

30. The segmented rotary kiln according to claim 29, characterized in that the kiln tail gas inlet barrel (14) is covered outside the discharge end of the drum (1), and the kiln tail gas inlet barrel (14) is connected with the outer wall of the central discharge mechanism (17) in a rotating and sealing manner.

31. Segmented rotary kiln according to anyone of claims 27-30, characterized in that a gas feed duct (22) is arranged in the drum (1), and the kiln tail gas inlet barrel (14) is communicated with at least one working condition section of the drum (1) and/or the follower jacket (2) and/or the stationary jacket (12) through the gas feed duct (22); the air feeding pipeline (22) comprises an air feeding main pipe (222) and an air feeding branch pipe (221), the air feeding branch pipe (221) is communicated with the furnace tail air inlet cylinder (14), one end of the air feeding main pipe (222) is communicated with the air feeding branch pipe (221), the other end of the air feeding main pipe (222) is communicated with at least one working condition section of the roller (1) and/or the servo jacket (2) and/or the fixed jacket (12), and the air feeding main pipe (222) is provided with one pipe or a plurality of parallel pipes.

32. The segmented rotary furnace according to claim 30, wherein the central discharging mechanism (17) is a central spiral discharging mechanism or a central piston discharging mechanism, a material turning plate (18) is fixed at an inlet of the central discharging mechanism (17), and the material turning plate (18) is extended and fixed on the inner wall of the roller (1);

the central spiral discharging mechanism comprises:

one end of the central discharging barrel is fixed at the discharging end of the roller (1), the other end of the central discharging barrel is in rotary sealing connection with the furnace tail kiln body (3), and the central discharging barrel is in rotary sealing connection with the furnace tail air inlet barrel (14);

the central spiral is rotatably arranged on the central discharging barrel;

33. The sectional type rotary furnace according to any one of claims 1 to 12, 15 to 17, 19 to 21, 23 to 24, 27 to 30 and 32, further comprising a fixedly arranged furnace exhaust box (20), wherein the roller (1) penetrates through the furnace exhaust box (20), the wall of the roller (1) is in rotary sealing connection with the furnace exhaust box (20), a working section or the servo jacket (2) corresponding to the furnace exhaust box (20) in the roller (1) is communicated with the furnace exhaust box (20), and the furnace exhaust box (20) is provided with a second exhaust port (201) and a fourth ash discharge port (202).

34. Sectional type rotary furnace according to claim 33, characterized in that the drum wall of the drum (1) corresponding to the exhaust box (20) in the furnace is provided with a gas outlet tube bank (23), the exhaust box (20) in the furnace and the interior of the drum (1) being in communication through the gas outlet tube bank (23).

35. The segmented rotary kiln according to any one of claims 1 to 12, 15 to 17, 19 to 21, 23 to 24, 27 to 30 and 32, further comprising at least one fixed partition plate disposed in the working section of the drum (1); the fixed partition board is fixed in the roller (1), an opening is formed in the fixed partition board, and the opening is close to the wall of the roller (1).

36. The sectional type rotary furnace according to any one of claims 1 to 12, 15 to 17, 19 to 21, 23 to 24, 27 to 30 and 32, wherein the wall of the drum (1) is provided with a heat-insulating layer (21).

37. A segmented rotary furnace according to claim 1, characterized in that a plurality of heat exchange tubes for indirectly heating the material in the working section are arranged in the drum (1), and the heat exchange tubes are sealed through the segmented plate (15).

38. The sectional type rotary furnace according to any one of claims 1 to 12, 15 to 17, 19 to 21, 23 to 24, 27 to 30, 32 and 37, wherein the interior of the roller (1) is sequentially divided into two independent working condition sections from a feeding end to a discharging end through the sectional plates (15), wherein the two working condition sections are respectively a drying section and a carbonization section;

or the interior of the roller (1) is sequentially divided into three mutually independent working condition sections from the feeding end to the discharging end through the section plates (15), namely a pre-drying section, a drying section and a carbonization section.