WO2022165878A1

WO2022165878A1 - Segmented rotary furnace

Info

Publication number: WO2022165878A1
Application number: PCT/CN2021/077798
Authority: WO
Inventors: 姜良军; 李兵成; 马贵权; 周林; 刘扬; 常鄂刚; 卓超
Original assignee: 湖南鼎玖能源环境科技股份有限公司
Priority date: 2021-02-04
Filing date: 2021-02-25
Publication date: 2022-08-11

Abstract

Disclosed is a segmented rotary furnace, comprising a roller, a furnace head device, and a furnace tail device. Both ends of the roller are rotatably and sealably connected to the furnace head device and the furnace tail device which are fixedly arranged, respectively. The roller can continuously rotate in the same direction. The segmented rotary furnace further comprises: one or more segmented plates arranged in the roller, the edges of the segmented plates being sealably connected to the inner wall of the roller, and the segmented plates being used for dividing the roller into a plurality of working condition segments independent from each other along the axial direction; and a solid-phase conveying device, both ends of the solid-phase conveying device being communicated with two adjacent working condition segments, and the solid-phase conveying device being used for conveying solid materials between the two adjacent working condition segments. According to the segmented rotary furnace, the roller is divided, by the segmented plates, into a plurality of working condition segments independent from each other, different working conditions are allowed to be set in each working condition segment, the corresponding process of the materials is completed in each working condition segment, and the adjustment of the solid material conveying and staying time among the working condition segments is achieved by means of the solid-phase conveying device.

Description

Segmented Rotary Furnace

This application is required to be submitted to the China Patent Office on February 4, 2021, the application number is 202110155928.7, the name of the invention is "segmented rotary kiln", and the application is required to be submitted to the China Patent Office on February 4, 2021, the application number is 202120324099.6, practical The Chinese patent priority for the new type titled "Segmented Rotary Furnace", the entire contents of which are incorporated herein by reference.

technical field

The invention relates to the technical fields of environmental protection, energy and chemical equipment, in particular to a segmented rotary kiln.

Background technique

In environmental protection, energy and chemical production, the conversion process of some materials often requires drying, pyrolysis, gasification, carbonization, activation, reaction, cooling and other processes, and these processes generally rely on different rotary kilns. The existing rotary kiln is usually composed of a drum, a furnace head and a furnace tail, wherein the furnace head and the furnace tail are fixedly connected by rotation and sealing around both ends of the drum, and are statically and dynamically sealed with both ends of the drum. The drum is driven by an external drive device. Rotate in one direction continuously. The rotary kiln is an integral chamber due to the front and rear penetration of the drum, and the gas flows unimpeded in the chamber; at the same time, because the rotary kiln has a certain inclination angle, with the rotation of the rotary kiln body, the solid materials inevitably return The tumbling movement of the lower end of the converter cannot effectively control the residence time of solid materials in the drum. At the same time, for some processes whose reaction conditions are quite different from each other, since the chambers of the existing rotary kiln are integrally connected, they cannot be performed well in the same rotary kiln.

In summary, how to solve the problems that the solid material residence time cannot be effectively controlled in the rotary kiln and that different processes cannot be carried out in the same rotary kiln has become an urgent problem to be solved by those skilled in the art.

SUMMARY OF THE INVENTION

In view of this, the purpose of the present invention is to provide a segmented rotary kiln, which can effectively control the residence time of solid materials and realize the sectionalization of the rotary kiln, and can complete the respective process treatment under different working conditions of each segment.

To achieve the above object, the present invention provides the following technical solutions:

A segmented rotary kiln includes a drum, a furnace head device and a furnace tail device, two ends of the drum are respectively connected with the furnace head device and the furnace tail device which are fixedly arranged in a rotational and sealing manner, and the drum Capable of continuously rotating in the same direction, the segmented rotary kiln also includes:

One or more segmented plates are arranged in the drum, and the edges of the segmented plates are sealedly connected with the inner wall of the drum, and are used to divide the drum into several independent working sections along the axial direction;

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

Preferably, in the above-mentioned segmented rotary kiln, the solid-phase conveying device is a screw conveyor, and the screw conveyor is obliquely inserted into two adjacent ones of the screw conveyor from the outside of the drum. In the working condition section, and passing through the segmented plate, the inlet of the screw conveyor is located in one of the two adjacent working condition sections, which is close to the furnace head device. The outlet of the screw conveyor is located in the other of the two adjacent working condition sections that is far away from the furnace head device.

Preferably, in the above-mentioned segmented rotary kiln, the screw conveyor includes a power component, a screw component and a barrel, the screw component is arranged in the barrel, and the screw component is drivingly connected to the power component , the outlet of the screw conveyor is opened at the end of the cylinder body, and the part of the screw conveyor located in the working condition section close to the furnace head device is not provided with a cylinder body.

Preferably, in the above-mentioned segmented rotary kiln, the helical member is an intermittent helical, and/or there is a gap between one end of the helical member close to the outlet of the screw conveyor and the end of the cylinder body distance.

Preferably, in the above-mentioned segmented rotary kiln, a controller and a position switch are further included, and both the power component and the position switch are signally connected to the controller, and the position switch is arranged on the drum, and when the When the solid-phase conveying device is within the material accumulation range directly below the drum, the position switch is triggered, and the controller controls the operation of the power component, which drives the screw component to move.

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

Preferably, in the above-mentioned segmented rotary kiln, the solid-phase conveying device is arranged outside the drum, and the inlet and the outlet of the solid-phase conveying device are respectively adjacent to the two corresponding solid-phase conveying devices. The cylinder wall of the working section is connected.

Preferably, in the above-mentioned segmented rotary kiln, the solid phase conveying device is a screw conveyor or a piston conveyor.

Preferably, in the above-mentioned segmented rotary kiln, the burner device includes:

The furnace head kiln body is provided with one or more exhaust chambers, each of the exhaust chambers is provided with a first exhaust port and a first ash discharge port, and the burner head kiln body It is fixedly connected to the feed end of the drum in a rotational and sealing manner, and each of the exhaust chambers corresponds to one of the working conditions of the drum;

A feeding mechanism, the feeding mechanism is sealed through the furnace head kiln body and extends into the drum, and the feeding mechanism is provided with a material inlet.

Preferably, in the above-mentioned segmented rotary furnace, a follower jacket and/or a fixed jacket are also included;

The follow-up jacket is fixed on the cylinder wall of the drum, the inside of the follow-up jacket is used to pass heating medium, and the follow-up jacket is communicated with one of the exhaust chambers;

The fixed jacket is fixed and fixed, the roller passes through the fixed jacket, the cylinder wall of the roller is connected with the fixed jacket in a rotational and sealing manner, and the fixed jacket is used to pass the heating medium.

Preferably, in the above-mentioned segmented rotary kiln, the feed end of the drum has a variable diameter section, and the outer diameter of the variable diameter section is smaller than the outer diameter of the remaining shaft sections of the drum, and the furnace head kiln The body is connected in a rotational and sealing manner with the variable diameter section.

the follow-up jacket is fixed on the cylinder wall of the drum, and the inside of the follow-up jacket is used for passing heating medium;

Preferably, in the above-mentioned segmented rotary kiln, the follower jacket communicates with at least one of the working condition sections of the drum; and/or the fixed jacket communicates with at least one of the working conditions of the drum The working section is connected.

Preferably, in the above-mentioned segmented rotary furnace, the furnace tail device includes:

The furnace tail kiln body, the furnace tail kiln body is provided with a pyrolysis gas outlet and a discharge port, the furnace tail kiln body is fixedly connected with the discharge end of the drum directly or indirectly in a rotating and sealing connection, the furnace The tail kiln body is directly or indirectly communicated with the working condition section of the drum close to the discharge end.

Preferably, the above-mentioned segmented rotary furnace further includes a combustion furnace body and a burner, the combustion furnace body is provided with an air inlet, a hot gas outlet and a second ash discharge port, and the burner is connected to the combustion furnace. The air inlet is used for feeding oxygen-containing gas, and the hot gas outlet is connected to the follower jacket and/or the fixing clip through a hot gas delivery pipe. The jacket and/or at least one of the operating sections of the drum are in communication.

Preferably, in the above-mentioned 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, which is used for the pyrolysis gas in the furnace tail kiln body. The gas is passed into the combustion furnace body for combustion.

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

Preferably, in the above-mentioned segmented rotary furnace, the combustion furnace body is further provided with a middle partition, and the middle partition divides the combustion furnace body into a combustion area and a hot gas discharge area. Both the air inlet and the second ash discharge port are located in the combustion area, the hot gas outlet is located in the hot gas discharge area, and the combustion area communicates with the upper part of the hot gas discharge area.

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

Preferably, in the above-mentioned segmented rotary furnace, the discharge end of the drum is provided with an open opening, the furnace tail kiln body is rotatably and sealedly connected to the outer peripheral wall of the discharge end of the drum, and the furnace tail kiln body is rotatably sealed. It is directly connected with the working condition section of the drum close to the discharge end;

The hot gas delivery pipe includes:

A hot gas delivery main pipe, the hot gas delivery main pipe is connected with the hot gas outlet in a rotational and sealing manner, the axis of the hot gas delivery main pipe coincides with the axis of the drum, and one end of the hot gas delivery main pipe is communicated with the combustion furnace body, and the hot gas delivery pipe is connected to the combustion furnace body. The other end of the main pipe is closed or communicated with at least one working section in the drum and/or the follower jacket and/or the fixed jacket, and the part of the hot gas conveying main pipe located in the drum has a tube or tubes in parallel;

The hot gas conveying branch pipe is fixedly communicated with the hot gas conveying main pipe and the follower jacket provided on the roller at both ends, and the hot gas conveying branch pipe is located in the furnace tail kiln body.

Preferably, in the above-mentioned segmented rotary furnace, the number of the hot gas conveying branch pipes is multiple, the hot gas conveying branch pipes are evenly arranged along the conical surface, in an umbrella-shaped structure, and there are adjacent hot gas conveying branch pipes between the adjacent hot gas conveying branch pipes. gap.

Preferably, in the above-mentioned segmented rotary kiln, the discharge end of the drum is closed and arranged, and the furnace tail kiln body is rotatably and sealedly connected to the outer peripheral wall of the discharge end of the drum; the furnace tail kiln body is connected with The working condition section of the drum close to the discharge end is communicated through the barrel wall discharge mechanism; the barrel wall discharge mechanism is sequentially inserted into the drum obliquely from the outside of the drum, and passes through the discharge end, The inlet of the barrel wall discharging mechanism is located in the working condition section of the drum close to the discharging end, and the outlet of the barrel wall discharging mechanism is located in the furnace tail kiln body;

The hot gas delivery pipe includes:

The hot gas conveying branch pipe is fixedly communicated with the hot gas conveying main pipe and the follower jacket provided on the drum at both ends respectively, and the hot gas conveying branch pipe is located in the furnace tail kiln body.

The hot gas delivery pipe includes:

a hot gas delivery main pipe, one end of the hot gas delivery main pipe is connected with the hot gas outlet in a rotary seal, the axis of the hot gas delivery main pipe coincides with the axis of the drum, and one end of the hot gas delivery main pipe is communicated with the combustion furnace body, The other end of the hot gas delivery main pipe is communicated with at least one of the working conditions and/or the follower jacket and/or the fixed jacket in the drum, and the hot gas delivery main pipe is located in the drum. the inner part has a tube or tubes in juxtaposition;

hot gas transport branch pipe, the hot gas transport branch pipe is located in the drum, one end of the hot gas transport branch pipe is fixedly connected with the hot gas transport main pipe, and the other end of the hot gas transport branch pipe is connected with the follower jacket and/or The fixed jacket is connected.

The hot gas delivery pipe includes:

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

Preferably, in the above-mentioned segmented rotary furnace, the barrel wall discharging mechanism is a barrel wall screw discharging mechanism.

Preferably, in the above-mentioned segmented rotary furnace, the furnace tail device further comprises:

The furnace tail air intake tube is fixed and fixed, and the furnace tail air intake tube is connected with the outer peripheral wall of the drum near the discharge end or the outer wall of the follower jacket in a rotational and sealing manner. It is communicated with at least one of the working condition sections of the follower jacket and/or the fixed jacket and/or the drum, and the furnace tail air inlet is provided with a hot gas inlet and a third ash discharge port. The hot gas inlet is communicated with the hot gas outlet of the combustion furnace body.

Preferably, in the above-mentioned segmented rotary kiln, the discharge end of the drum is closed and arranged, the furnace tail kiln body is rotatably and sealedly connected to the outer peripheral wall of the discharge end of the drum, and the furnace tail kiln body is connected with The working condition section of the drum close to the discharge end is communicated through the barrel wall discharge mechanism; the barrel wall discharge mechanism is sequentially inserted into the drum obliquely from the outside of the drum, and passes through the discharge end, The inlet of the barrel wall discharge machine is located in the working condition section of the drum close to the discharge end, and the outlet of the barrel wall discharge machine is located in the furnace tail kiln body.

Preferably, in the above-mentioned segmented rotary kiln, the discharge end of the drum is closed and provided, and the discharge end of the drum is fixedly provided with a central discharge mechanism, and the furnace tail kiln body passes through the center discharge end. The rotary sealing connection of the charging mechanism realizes the indirect rotary sealing connection between the furnace tail kiln body and the discharge end of the drum, and the working condition section of the furnace tail kiln body and the drum close to the discharging end passes through the central discharging mechanism indirect connection.

Preferably, in the above-mentioned segmented rotary kiln, the furnace tail air intake cylinder is covered outside the discharge end of the drum, and the furnace tail air intake cylinder is rotatably and sealedly connected to the outer wall of the central discharge mechanism.

Preferably, in the above-mentioned segmented rotary furnace, an air supply pipe is provided in the drum, and the furnace tail air intake pipe passes through the air supply pipe and at least one of the working condition sections and/or the The follower jacket and/or the fixed jacket communicate with each other; the air supply pipeline includes an air supply main pipe and an air supply branch pipe, the air supply branch pipe is communicated with the furnace tail air inlet cylinder, and one end of the air supply main pipe is communicated with the air supply branch pipe, so The other end of the air supply main pipe is communicated with at least one of the working condition sections of the drum and/or the follower jacket and/or the fixed jacket, and the air supply main pipe has one pipe or a plurality of parallel pipes. Tube.

Preferably, in the above-mentioned segmented rotary furnace, the central discharging mechanism is a central screw discharging mechanism or a central piston discharging mechanism, and a turning plate is fixed at the inlet of the central discharging mechanism, and the turning plate is fixed at the inlet of the central discharging mechanism. The material plate is extended and fixed on the inner wall of the drum;

The center screw discharge mechanism includes:

A central discharging cylinder, one end of the central discharging cylinder is fixed on the discharging end of the drum, and the other end is connected with the furnace tail kiln body in a rotational and sealing manner, and the central discharging cylinder is connected with the furnace tail air inlet cylinder. Rotary sealing connection;

a central screw, which is rotatably arranged on the central discharge cylinder;

The second power component is drivingly connected with the central screw, and is used for driving the central screw to rotate relative to the central discharge cylinder.

Preferably, in the above-mentioned segmented rotary furnace, it also includes a furnace exhaust box that is fixedly arranged, the drum passes through the furnace exhaust box, and the barrel wall of the drum is connected to the furnace exhaust box. The middle exhaust box is connected in a rotary and sealing manner, and the drum corresponding to a working condition section of the furnace exhaust box or the follow-up jacket is communicated with the furnace exhaust box, and the furnace exhaust box The box is provided with a second exhaust port and a fourth ash discharge port.

Preferably, in the above-mentioned segmented rotary furnace, a gas outlet tube group is provided on the cylinder wall of the drum corresponding to the exhaust box in the furnace, and the exhaust box in the furnace and the interior of the drum pass through the exhaust box in the furnace. The gas outlet pipe group is communicated.

Preferably, in the above-mentioned segmented rotary kiln, at least one fixed baffle plate disposed in the working condition section of the drum is further included; the fixed baffle plate is fixed in the drum, and the fixed baffle plate is An opening is provided on the partition, and the opening is close to the drum wall of the drum.

Preferably, in the above-mentioned segmented rotary kiln, outer insulation layers are provided on both sides of the segmented plate, or an insulation interlayer is provided inside the segmented plate.

Preferably, in the above-mentioned segmented rotary furnace, an insulating layer is provided on the wall of the drum.

Preferably, in the above-mentioned segmented rotary kiln, the included angle between the plate surface of the segmented plate and the axis of the drum is 45°˜135°.

Compared with the prior art, the beneficial effects of the present invention are:

The segmented rotary furnace provided by the present invention includes a drum, a furnace head device, a furnace tail device and a solid-phase conveying device. It rotates continuously and slowly in the same direction; one or more segmented plates are arranged in the drum, and the edge of the segmented plate is sealed with the inner wall of the drum, which divides the drum into several independent working condition sections, and the working condition sections are completely isolated. , the two ends of the solid-phase conveying device are communicated with two adjacent working condition sections, and are used for solid material conveying between the two adjacent working condition sections.

When working, the material is fed into the drum through the furnace head device. Since the drum is placed at a certain angle, the feeding end is higher than the discharging end, the drum rotates continuously in the same direction, and the material is discharged from the feeding end to the discharging end under the action of its own weight. The end rolls and moves, because the segmented plate divides the drum into several independent working condition sections, therefore, during the movement of the solid material, when the solid phase conveying device rotates to the bottom, the solid material in the previous working condition section will be moved. The material is transported to the next working section through the solid-phase conveying device, and can only enter the next working section through the solid-phase conveying device. Since the solid-phase conveying device is always filled with solid-phase materials, the gas phase is not allowed to pass through. The condition sections are independent of each other, realizing segmentation, so different working conditions are allowed to be set in each working condition section, and the material can complete the corresponding process under different working conditions in each working condition section. The conveying operation can effectively control the residence time of solid materials in the drum.

Description of drawings

In order to explain the embodiments of the present invention or the technical solutions in the prior art more clearly, the following briefly introduces the accompanying drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only It is an embodiment of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to the provided drawings without creative work.

1 is a schematic structural diagram of a segmented rotary kiln provided by an embodiment of the present invention;

Fig. 2 is the structural representation of the A-A section in Fig. 1;

Fig. 3 is the structural representation of the B-B section in Fig. 1;

4 is a schematic structural diagram of a solid phase conveying device of a segmented rotary kiln provided by an embodiment of the present invention;

5 is a schematic structural diagram of another solid phase conveying device of a segmented rotary kiln provided by an embodiment of the present invention;

6 is a schematic structural diagram of a second segmented rotary kiln provided by an embodiment of the present invention;

7 is a schematic structural diagram of a third segmented rotary kiln provided by an embodiment of the present invention;

8 is a schematic structural diagram of a fourth segmented rotary kiln provided by an embodiment of the present invention;

9 is a schematic structural diagram of a fifth segmented rotary kiln provided by an embodiment of the present invention;

10 is a schematic structural diagram of a sixth segmented rotary kiln provided by an embodiment of the present invention;

Fig. 11 is the structural representation of the C-C section in Fig. 10;

Fig. 12 is the structural representation of the D-D section in Fig. 10;

13 is a schematic structural diagram of a seventh segmented rotary kiln provided by an embodiment of the present invention;

Fig. 14 is the structural representation of the E-E section in Fig. 13;

15 is a schematic structural diagram of an eighth segmented rotary kiln provided by an embodiment of the present invention;

16 is a schematic structural diagram of a ninth segmented rotary kiln provided by an embodiment of the present invention;

17 is a schematic structural diagram of a tenth segmented rotary kiln provided by an embodiment of the present invention;

18 is a schematic structural diagram of a furnace head device of a segmented rotary kiln provided by an embodiment of the present invention;

FIG. 19 is a schematic structural diagram of another furnace head device of a segmented rotary kiln provided by an embodiment of the present invention.

In Figures 1-19, 1 is the drum, 2 is the follower jacket, 3 is the furnace tail kiln body, 31 is the discharge port, 32 is the pyrolysis gas outlet, 4 is the pyrolysis gas conveying pipe, and 5 is the combustion Furnace body, 51 is the air inlet, 52 is the second ash outlet, 53 is the hot gas outlet, 54 is the pyrolysis gas inlet, 6 is the burner, 7 is the middle partition, 8 is the hot gas delivery pipe, and 81 is the hot gas delivery main pipe , 82 is the hot gas conveying branch pipe, 9 is the solid phase conveying device, 91 is the cylinder, 911 is the material inlet, 912 is the material outlet, 92 is the screw part, 93 is the power part, 10 is the furnace head kiln body, 101 is the first Exhaust port, 102 is the first ash discharge port, 11 is the feeding mechanism, 12 is the fixed jacket, 13 is the ventilation pipe, 14 is the furnace tail air inlet, 141 is the third ash discharge port, 142 is the hot gas inlet, 15 It is a segmented plate, 16 is an exhaust pipe, 17 is a center discharge mechanism, 18 is a turning plate, 19 is a cylinder wall discharge mechanism, 20 is an exhaust box in the furnace, 201 is a second exhaust port, and 202 is a The fourth ash discharge port, 21 is the insulation layer, 22 is the air supply pipe, 221 is the air supply branch pipe, 222 is the air supply main pipe, and 23 is the gas outlet pipe group.

Detailed ways

The core of the invention is to provide a segmented rotary kiln, which can effectively control the residence time of solid materials and realize the segmenting of the rotary kiln, and can complete the respective process treatments under different working conditions of each segment.

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to FIG. 1-FIG. 16. An embodiment of the present invention provides a segmented rotary kiln, including a drum 1, a furnace head device, a furnace tail device and a solid-phase conveying device 9. The two ends of the drum 1 are respectively fixed and fixed. The furnace head device and the furnace tail device are connected in rotation and sealing, and the drum 1 can rotate continuously and slowly in the same direction; one or more segmented plates 15 are arranged in the drum 1. The segment plates 15 are arranged in sequence along the axis of the drum, the edge of the segment plate 15 is sealed with the inner wall of the drum 1, and the drum 1 is divided into several independent working sections, and the working sections are completely isolated; solid-phase conveying Both ends of the device 9 are communicated with two adjacent working condition sections for conveying solid materials between the two adjacent working condition sections. As an optimization, the included angle between the plate surface of the segmented plate 15 and the axis of the drum 1 is 45°˜135°, more preferably about 90°.

When the segmented rotary kiln is working, the material is fed into the drum 1 through the furnace head device. Since the drum 1 is placed at a certain angle, the feed end is higher than the discharge end, and the drum 1 rotates continuously in the same direction, and the material is in the same direction. Under the action, it rolls and moves from the feed end to the discharge end. Since the segmented plate 15 divides the drum 1 into several independent working sections, the gas phase and the solid phase are completely isolated. Therefore, during the movement of the solid material, when When the solid phase conveying device 9 is rotated to the bottom, the solid materials in the previous working condition section are transported 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. The solid-phase conveying device 9 is always filled with solid-phase materials. Therefore, the gas phase is not allowed to pass through. The corresponding process is completed under different working conditions of each working condition section, and by controlling the conveying operation of the solid phase conveying device 9, the residence time of the solid material in the drum 1 is effectively controlled.

As shown in Figures 4 and 5, the solid-phase conveying device 9 is a screw conveyor, and the screw conveyor is inserted obliquely from the outside of the drum 1 into two adjacent working conditions corresponding to the screw conveyor in sequence, and passes through the screw conveyor. Passing through the segment plate 15, the material inlet 911 of the screw conveyor is located in one of the two adjacent working conditions, which is close to the furnace head device, that is, in the previous working section, and the material outlet 912 of the screw conveyor is located in the opposite working section. In the other working section far from the furnace head device among the two adjacent working sections, that is, in the next working section.

When working, with the rotation of the drum 1, the material rolls down and moves forward along the inner wall in the drum 1, and the material moves to the sectional plate 15 and is blocked, and the material gathers in the position close to the sectional plate 15 in the previous working section, The material enters the material inlet 911 of the screw conveyor in the previous working section, the screw conveyor works, and the material is transported from the material inlet 911 of the screw conveyor to the material outlet 912 in the next working section, and finally enters the downstream. In the working condition section, the conveying of the solid phase material between the two adjacent working condition sections is completed.

Since the screw conveyor is obliquely inserted into two adjacent working condition sections, it is equivalent to that the material is transported between the two adjacent working condition sections inside the drum 1, and the screw conveyor is in the process of conveying the material. , the material does not leave the inside of the drum 1, therefore, the heat dissipation of the material is reduced, and the heat loss is reduced.

Of course, the screw conveyor can also be integrally arranged outside the drum 1, and the material inlet 911 and the material outlet 912 are respectively connected to the two working sections. However, when the material is conveyed between the two working sections, the material leaves the inside of the drum 1. , the material dissipates heat quickly, resulting in heat loss.

Further, in this embodiment, the screw conveyor includes a barrel 91 , a screw member 92 and a power member 93 , wherein the barrel 91 is sealed and inserted into the adjacent two working condition sections of the drum 1 in order from the outside of the drum 1 . , and seal through the segmented plate 15 between the two working condition sections, the material inlet 911 of the cylinder 91 is located in the previous working section, and the material outlet 912 of the cylinder 91 is located in the next working section; 92 is arranged in the cylinder body 91 and rotates relative to the cylinder body 91 to move the material from the material inlet 911 to the material outlet 912; the power part 93 is located outside the drum 1, and the power part 93 is drivingly connected with the screw part 92 for driving the screw Part 92 rotates.

During operation, with the rotation of the drum 1, the material rolls down and moves forward along the inner wall in the drum 1, and the material moves to the sectional plate 15 and is blocked, and the material gathers in the upstream working section near the sectional plate 15, The material enters the material inlet 911 of the screw conveyor in the previous working condition section, and the screw member 92 is driven to move by the power component 93, and the material is transported from the material inlet 911 of the screw conveyor to the material outlet located in the next working condition section. 912, and finally enter the next working condition section to complete the transportation of the solid phase material between two adjacent working condition sections.

As shown in FIG. 5 , further, in this embodiment, the cylindrical body 91 is not provided on the outside of the screw member 92 of the screw conveyor located in the previous working condition section. That is, the part of the screw conveyor that is inserted into the previous working section is not provided with the cylinder 91, so that the screw part 92 located in the previous working section is completely exposed to the drum 1, and the screw part 92 is in direct contact with the material. The helical member 92 is wrapped. This setting is because the material (such as sludge) may have stickiness or plasticity, and may stick and block when entering the material inlet 911 of the screw conveyor. Therefore, remove the cylinder 91 at the position of the material inlet 911 and directly pass the exposed The spiral part 92 is used for conveying, which avoids bonding and blockage, and makes the material conveying smoother and more reliable.

Further, in this embodiment, the material outlet 912 is opened on the end face of the cylinder 91 away from the power part 93 , that is, the end of the cylinder 91 away from the power part 93 is completely open, so that the axis of the material outlet 912 is connected to the cylinder 91 . The axes of the body 91 are coincident, which is more favorable for the material to be discharged and cleaned from the cylinder body 91 to avoid clogging.

In this embodiment, the helical part 92 in the cylinder 91 is an intermittent helical, and/or there is a distance between the end of the helical part 92 away from the power part 93 and the material outlet 912 . In this way, when the material is conveyed in the cylinder 91, since the screw member 92 is an intermittent screw, a filler space is formed between two adjacent helices, and the material blocks the cylinder 91 in the filler space, so that the screw member 92 is transporting Both the material and the state of stopping the conveying of the material hinder the passage of the gas phase, so as to ensure the independence between each working section and not affect the process of each working section.

There is a distance between the end of the screw member 92 away from the power member 93 and the material outlet 912. This distance can form a packing space, and the material can block the cylinder 91 in the packing space, which can also play the role of the screw member 92 in conveying materials and stopping. In the state of conveying the material, it hinders the passage of the gas phase, which ensures the independence of each working section and does not affect the process of each working section.

Therefore, when the screw conveyor rotates with the drum 1 to the upper position of the drum 1, since the screw conveyor is separated from the material in the drum 1, the cylinder 91 can be kept blocked by the material retained in the screw conveyor to achieve gas phase isolation. effect. When the screw conveyor is located above, the screw conveyor can continue to run. During the rotation of the screw conveyor from the top to the bottom, the materials retained in the screw conveyor continue to be transported, which can meet the blocking requirements during this period of time. Of course, when the screw conveyor is at the top, the screw conveyor can also stop running, and the remaining materials can be stopped to meet the blocking requirements.

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

As an optimization, in this embodiment, the power component 93 is an electric motor or a hydraulic motor. Preferably, the electric motor or hydraulic motor is connected with the screw member 92 through a reducer, so that the screw member 92 has a suitable speed, as long as the screw member 92 can be driven. It can be rotated, and is not limited to the form listed in this embodiment.

Further, in this embodiment, the screw conveyor also includes a controller and a position switch, the power component 93 and the position switch are both connected to the controller signal, and the position switch is arranged on the drum 1. When the screw conveyor is directly below the drum 1 When it is within the range of plus or minus 10° to 30°, it is preferably about plus or minus 15° directly below the drum 1, that is, when the screw conveyor is within the range of material accumulation directly under the drum 1, the position switch is triggered, and the controller controls the power components. 93 runs, the power part 93 drives the screw part 92 to move.

The purpose of this setting is: when the screw conveyor rotates to the high position with the drum 1, there is no material in the material inlet 911, and the screw part 92 may be idling, causing the material in the screw part 92 to be transported to the next working section, and the material Since there is no material in the inlet 911, the material in the screw part 92 may be emptied or the material may not fill the screw part 92 although it is not emptied, and a gas channel is formed in the screw part 92, so that the gas phase is connected between the working conditions. There may be a difference in air pressure between the working conditions, and gas flow occurs between the working conditions, which affects the process purpose and effect of the staged treatment.

Therefore, by setting the controller and the position switch, when the roller 1 rotates to the point where the screw conveyor is outside the range of plus or minus 10° to 30°, that is, when the screw conveyor is outside the accumulation range directly under the roller 1 , the position switch is not triggered, the controller controls the power part 93 to stop running, the screw part 92 does not rotate, and the screw conveyor does not transport the material, so that the material remains in the cylinder 91, and the cylinder 91 is blocked, further The role of gas phase isolation.

As an optimization, in this embodiment, the position switch is any one or a combination of a photoelectric switch or a magnetic induction switch. Specifically, the outer wall of the drum 1 is provided with a shielding piece or an induction piece of a photoelectric switch or a magnetic induction switch. When the screw conveyor is under the drum 1, the blocking sheet or the induction sheet triggers the photoelectric switch or the magnetic induction switch, the controller controls the operation of the power part, and the power part drives the screw part 92 to rotate for material conveying.

Of course, in addition to the use of a screw conveyor obliquely inserted into the drum 1, the solid-phase conveying device 9 can also be arranged outside the drum 1 in this embodiment. The inlet and the outlet of the solid-phase conveying device 9 They are respectively connected with the barrel walls of the two adjacent working sections of the solid-phase conveying device 9, but there will be heat loss in this setting.

For the solid-phase conveying device 9 arranged outside the drum 1, the solid-phase conveying device 9 can be a screw conveyor or a piston conveyor, and the piston conveyor is a piston type, and the material is pushed by the reciprocating movement of the piston.

As shown in Fig. 1, Fig. 6, Fig. 8-Fig. 10, Fig. 13, Fig. 15-Fig. 16, Fig. 18 and Fig. 19, in this embodiment, the burner head device is optimized, and the burner head device includes a burner head kiln body 10 and feeding mechanism 11; wherein, the furnace head kiln body 10 is provided with one or more exhaust chambers, and the multiple exhaust chambers are arranged in sequence along the axis of the drum 1 and are isolated from each other, and each exhaust chamber is provided with There are a first exhaust port 101 and a first ash discharge port 102, the furnace head kiln body 10 is fixedly connected to the feed end of the drum 1 in a rotational and sealing manner, and each exhaust chamber corresponds to a working section of the drum 1; The feeding mechanism 11 is sealed through the furnace head kiln body 10 and extends into the drum 1, and the feeding mechanism 11 is provided with a feeding port.

When the furnace head device is working, the material enters the feeding mechanism 11 through the feeding port, and the feeding mechanism 11 transports the material to the working condition section of the drum 1 near the feeding end, and gradually enters each working condition through the solid phase conveying device 9 part. The exhaust gas produced by the reaction in a certain working condition section is discharged into a corresponding exhaust chamber in the furnace head kiln body 10, the gas separated from the exhaust gas is discharged from the first exhaust port 101 of the exhaust chamber, and the separated dust is discharged from the exhaust chamber. The first ash discharge port 102 is discharged. Since the gas in different working conditions is different, in order to facilitate the classification and processing, multiple exhaust chambers are set up to separately discharge the gas in each working condition.

Of course, the burner device may also have only one exhaust chamber, and the gases in multiple working conditions are passed into the exhaust chamber, but the gas treatment is inconvenient.

Specifically, for example, as shown in FIG. 1 , FIG. 5 , FIG. 13 , FIG. 15 , FIG. 16 , and FIG. 18 , when the number of exhaust chambers in the furnace head kiln body 10 is one, there are at least two working chambers in the drum 1 . During the working period, the exhaust chamber is only communicated with the first working section in the drum 1 near the feed end, specifically, the first working section is directly communicated with the exhaust chamber in the furnace head kiln body 10 .

When the number of exhaust chambers in the furnace head and kiln body 10 is more than two, the feed end of the drum 1 adopts a multi-layer sleeve structure, and the number of sleeves of the multi-layer sleeve is one-to-one with the number of exhaust chambers. Correspondingly, there is an annulus between adjacent sleeves for gas circulation, each layer of sleeves is communicated with a working section correspondingly, and each layer of sleeves is connected with each exhaust chamber in a one-to-one correspondence. The layer sleeves are sequentially communicated with the exhaust chambers arranged in the sequence from being close to the feed end to being away from the discharge end in order from the outside to the inside.

Specifically, as shown in FIGS. 8-10 and 19 , when the number of exhaust chambers in the furnace head kiln body 10 is two, and the drum 1 has at least two operating conditions, the feed end of the drum 1 It is a double-sleeve structure, and the two exhaust chambers are respectively connected with the two working condition sections. Specifically, the first working condition section close to the feed end of the drum 1 passes through the inner sleeve and an exhaust gas away from the feed end. The chamber is connected, and the other certain working conditions can be communicated with another exhaust chamber of the furnace head kiln body 10 through the exhaust pipe 16 and the outer sleeve. The exhaust pipe 16 is arranged in the drum 1, and one end is connected to the corresponding The working section is communicated, and one end is sealed through the segmented plate 15 and communicated with the outer sleeve.

When the number of exhaust chambers in the furnace head and kiln body 10 is three, four, five or more, according to the method given in the above embodiment, each exhaust chamber corresponds to the number of exhaust chambers in the drum 1 . One of the working conditions is connected.

1, 4-6, 8-10, 13-16, on the basis of any of the above embodiments, the segmented rotary furnace in this embodiment further includes a follower jacket 2 and / or the fixed jacket 12; the follow-up jacket 2 is fixed on the cylinder wall of the drum 1, the heating medium is introduced into the follow-up jacket 2, and the follow-up jacket 2 rotates with the drum 1; the fixed jacket 12 is not fixed The drum 1 passes through the fixed jacket 12, the cylinder wall of the drum 1 is connected with the fixed jacket 12 in a rotational and sealing manner, and the fixed jacket 12 is used to pass the heating medium. Both the follower clip 2 and the fixed jacket 12 are used to indirectly heat the materials in the drum 1 . The heating medium can be high temperature gas.

During operation, the drum 1 rotates continuously in a single direction, the follower jacket 2 and the roll 1 rotate together, the fixed jacket 12 is fixed differently, and the heating medium is introduced into the follower jacket 2 and the fixed jacket 12, and the heat of the heating medium The material is transferred to the material through the wall of the drum 1 to realize indirect heating.

Further, in this embodiment, the follower jacket 2 communicates with an exhaust chamber, that is, 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 follower jacket 2 is communicated with a layer of sleeves at the feed end of the drum 1 , and the layer of sleeves is in rotational and sealed communication with the exhaust chamber to realize the discharge of the heating gas in the follower jacket 2 .

Alternatively, the follower jacket 2 is communicated with at least one working section of the drum 1 , specifically, the follower jacket 2 is communicated with one working section of the drum 1 through a ventilation pipe 13 , and the outlet of the ventilation pipe 13 is connected to the inner wall of the drum 1 . There is a certain distance between them, and the material will not enter the ventilation pipe 13 during the movement. The heating gas in the follower jacket 2 enters into the drum 1, directly contacts and heats the material, and finally discharges together with the gas in the drum 1 into the exhaust chamber connected with the working condition section, so as to realize the heating of the follower jacket 2. After the heating gas is discharged, the materials in the drum 1 can be heated indirectly and directly.

Similarly, the fixed jacket 12 is communicated with at least one working section of the drum 1 . Specifically, the fixed jacket 12 is communicated with one working section of the drum 1 through the ventilation pipe 13 , and the outlet of the ventilation pipe 13 is connected to the inner wall of the drum 1 . There is a certain distance between them, and the material will not enter the ventilation pipe 13 during the movement. The heating gas in the fixed jacket 12 enters the drum 1, directly contacts and heats the material, and finally discharges together with the gas in the drum 1 into the exhaust chamber connected to the working condition section to realize the heating in the fixed jacket 12 After the gas is discharged, the material in the drum 1 can be heated indirectly and directly. Of course, the heating gas in the fixed jacket 12 can also be directly discharged through its own exhaust port.

As shown in Figure 1, Figure 6, Figure 8-Figure 10, Figure 13, Figure 15-Figure 17, Figure 19, the feed end of the drum 1 has a variable diameter section, and the outer diameter of the variable diameter section is smaller than the remaining shafts of the drum 1 The outer diameter of the section, the furnace head kiln body 10 and the variable diameter section are rotatably and sealedly connected. With this arrangement, the size of the rotating sealing surface between the feed end of the drum 1 and the furnace head kiln body 10 can be reduced, and the sealing performance can be improved. Preferably, the variable diameter section is configured as a multi-layer sleeve structure, which is used for the communication between each working condition section and each exhaust chamber.

Of course, the feed end of the drum 1 is not provided with a variable diameter section, and the outer diameter of the drum 1 is the same, as shown in Figure 18, but the sealing surface is large, which is not conducive to rotating sealing.

As shown in Figure 1, Figure 6-Figure 10, Figure 13, Figure 15, Figure 16, the furnace tail device is optimized. In this embodiment, the furnace tail device includes a furnace tail kiln body 3, and the furnace tail kiln body 3 is opened. There are a pyrolysis gas outlet 32 and a discharge port 31, and the furnace tail kiln body 3 is fixedly connected with the discharge end of the drum 1 directly or indirectly in a rotating and sealing manner. If the discharge end of the drum 1 is directly connected to the furnace tail kiln body 3 Rotating and sealing connection, the cylinder wall of the furnace tail kiln body 3 and the cylinder wall of the discharge end of the drum 1 are connected in rotation through the sealing member, and the furnace tail kiln body 3 is directly or indirectly connected with the working condition section of the drum 1 near the discharge end.

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

Further, in this embodiment, the segmented rotary furnace also includes a combustion furnace body 5 and a burner 6, and the combustion furnace body 5 is provided with an air inlet 51, a hot gas outlet 53 and a second ash discharge port 31. The combustion furnace body 5 is connected, and is used for combustion in the combustion furnace body 5 to generate heating gas, and the burner 6 can use natural gas, biomass, fuel oil, etc. as fuel; the air inlet 51 is used for introducing oxygen-containing gas to participate in the combustion reaction; The outlet 53 is communicated with the follower jacket 2 and/or the fixed jacket 12 and/or at least one working section of the drum 1, and is used for passing the heating gas generated by the combustion in the combustion furnace body 5 into the follower jacket 2 and/or Or at least one working section of the fixed jacket 12 and/or the drum 1 participates in the indirect heating and/or direct heating of the materials in the drum 1 .

During operation, the burner 6 works, and combustion occurs in the combustion furnace body 5 to generate heating gas, and the heating gas is passed into the follower jacket 2 and/or the fixed jacket 12 as a heating medium and/or at least one of the working parts of the drum 1. Participate in indirect heating and/or indirect heating of materials within the condition.

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, which is used to pass the pyrolysis gas in the furnace tail kiln body 3 into combustion. The furnace body 5 burns.

During operation, the pyrolysis gas and waste in the drum 1 enter the furnace tail kiln body 3 from the discharge end of the drum 1 for separation, and the pyrolysis gas enters the combustion furnace body 5 through the pyrolysis gas outlet 32 and the pyrolysis gas conveying pipe 4 Inside, the solid waste is discharged through the discharge port 31, the air inlet 51 of the combustion furnace body 5 is fed with oxygen-containing gas, mixed with the pyrolysis gas, the burner 6 ignites the pyrolysis gas for combustion, and the hot gas generated by the combustion is discharged from the hot gas outlet 53. And enter into at least one working section in the follower jacket 2 and/or the fixed jacket 12 and/or the drum 1 . It can be seen that the energy consumption of the pyrolysis gas in the drum 1 is used to reduce the energy consumption.

As shown in Figures 1-3, Figure 6 and Figure 7, further, in this embodiment, the pyrolysis gas delivery pipe 4 is arranged in the combustion furnace body 5, and one end of the pyrolysis gas delivery pipe 4 is connected to the pyrolysis gas The outlet 32 is communicated, and the other end penetrates into the combustion furnace body 5 . By integrating the pyrolysis gas conveying pipe 4 in the combustion furnace body 5, the pyrolysis gas separated in the furnace end kiln body 3 can be conveniently introduced directly into the combustion furnace body 5 for combustion, the pyrolysis gas transportation distance is short, and the pyrolysis gas The gas conveying pipe 4 is located in the combustion furnace body 5, which ensures that the temperature of the high-temperature pyrolysis gas is basically unchanged, and the pyrolysis gas is dedusted at high temperature, so as to prevent the pyrolysis gas from coking in the pipeline.

Specifically, the pyrolysis gas conveying pipe 4 is horizontally arranged on the top of the combustion furnace body 5 and bent downward in an arc shape, the upper end is connected with the pyrolysis gas outlet of the furnace end kiln body 3, and the lower end is arranged close to the air inlet 51, which is conducive to the Oxygen gas mixes quickly.

Of course, the pyrolysis gas delivery pipe 4 can also be externally connected to the combustion furnace body 5 and the furnace tail kiln body 3, as shown in Figures 8 and 9, but the pyrolysis gas has the problem of heat loss and is prone to coking.

Further, in this embodiment, the combustion furnace body 5 is also provided with a middle partition plate 7, and the middle partition plate 7 is blocked and arranged between the air inlet 51 and the hot gas outlet 53 to divide the combustion furnace body 5 into a combustion area and a The hot gas discharge area, the combustion area and the upper part of the hot gas discharge area communicate with each other. The pyrolysis gas is passed into the combustion area, the second ash discharge port 52 is located in the combustion area, the pyrolysis gas is burned in the combustion area, the generated dust is discharged from the second ash discharge port 52, and the generated high-temperature hot gas flows from the upper part of the combustion area to the hot gas The discharge area is then discharged to at least one working section in the follower jacket 2 and/or the fixed jacket 12 and/or the drum 1 through the hot gas outlet 53 . The combustion area in the combustion furnace body 5 is separated from the hot gas discharge area by the middle partition plate 7 , so that the pyrolysis gas can be prevented from entering the combustion furnace body 5 and then directly discharged from the hot gas outlet 53 , and at the same time, dust can be prevented from entering the hot gas outlet 53 . The lower part of the combustion 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 this embodiment, the furnace tail kiln body 3 and the combustion furnace body 5 have an integrated structure, and the furnace tail kiln body 3 and the adjacent shell walls of the combustion furnace body 5 share one. The pyrolysis gas outlet 54 and the hot gas outlet 53 are both arranged on the shell wall shared by the furnace end kiln body 3 and the combustion furnace body 5, and the hot gas outlet 53 communicates with the follower jacket 2 and/or the fixed jacket 10 through the hot gas delivery pipe 8. and/or the drum 1 is connected, the pipe wall of the hot gas conveying pipe 8 is connected with the hot air outlet 53 in a rotational and sealing manner, and the hot air conveying pipe 8 is relatively statically arranged with the drum 1 .

Setting the furnace tail kiln body 3 and the combustion furnace body 5 into an integrated structure not only simplifies the structure, but also the pyrolysis gas in the furnace tail kiln body 3 directly enters the pyrolysis furnace body 5 through the opening on the common shell wall. In the gas conveying pipe 4, the conveying path of the pyrolysis gas is shortened, and the pyrolysis gas is always transported in the furnace tail kiln body 3 and the combustion furnace body 5, thereby reducing heat loss. And the hot gas transport pipe 8 is arranged inside the furnace tail kiln body 3, the axis of the hot gas transport pipe 8 coincides with the axis of the drum 1, the distance of the hot gas transport pipe 8 is shortened, and the heat loss during the hot gas transport process is reduced.

During operation, the hot air conveying pipe 8 rotates together with the drum 1 , and the hot air conveying pipe 8 is specifically connected to the hot air outlet 53 through a sealing member in a rotational and sealing manner. The hot gas in the combustion furnace body 5 is passed into the follower jacket 2 , the fixed jacket 12 and/or the drum 1 through the hot gas conveying pipe 8 .

As shown in Figures 6-9, in this embodiment, the furnace tail kiln body 3 and the combustion furnace body 5 are of separate structures, and the adjacent shell walls of the furnace tail kiln body 3 and the combustion furnace body 5 are two separate Shell wall, the pyrolysis gas outlet 54 is arranged on the side shell wall of the furnace body 3 close to the combustion furnace body 5, and the pyrolysis gas inlet and hot gas outlet 53 of the combustion furnace body 5 are arranged on the combustion furnace body 5 near the furnace tail. One side of the shell wall of the kiln body 3, one end of the pyrolysis gas conveying pipe 4 penetrates the outside of the combustion furnace body 5 and communicates with the pyrolysis gas outlet 54, and the pipe wall of the hot gas conveying pipe 8 is connected to the combustion furnace body 5 and the furnace tail kiln body. 3. The two adjacent shell walls are sealed and rotated, and the hot gas conveying pipe 8 and the drum 1 are relatively statically arranged.

The furnace tail kiln body 3 and the combustion furnace body 5 are set as a separate structure, which is communicated through the pyrolysis gas conveying pipe 4, and the pipe section of the pyrolysis gas conveying pipe 4 exposed to the outside of the combustion furnace body 5 is shorter, which shortens the pyrolysis gas. Conveyor path reduces heat loss. The pipe section of the hot gas delivery pipe 8 exposed to the outside of the combustion furnace body 5 is short, which reduces the heat loss during the hot gas delivery process. The axis of the hot gas conveying pipe 8 coincides with the axis of the drum 1. During operation, the hot gas conveying pipe 8 rotates with the drum 1, and the hot gas conveying pipe 8 is specifically connected with the hot gas outlet 53 and the shell wall of the furnace end kiln body 3 through a sealing member. . The hot gas in the combustion furnace body 5 is passed into the follower jacket 2 , the fixed jacket 12 and/or the drum 1 through the hot gas conveying pipe 8 .

The furnace tail kiln body 3 and the combustion furnace body 5 of the integrated structure and the split structure are all simple in structure, and the pyrolysis gas collection, pyrolysis gas combustion, and pyrolysis gas transportation are integrated in one device, the process path is short, and the heat loss is reduced. Small, less auxiliary equipment, fewer leakage points, stable operation and convenient maintenance. In addition, the high-temperature pyrolysis gas directly enters the furnace tail kiln body 3 from the discharge end of the drum 1, and then directly enters the combustion furnace body 5, and there is no condition for the pyrolysis gas to coke.

As shown in Figures 1 to 3, in this embodiment, the discharge end of the drum 1 is open, the furnace tail kiln body 3 is connected with the outer peripheral wall of the discharge end of the drum 1 in a rotational and sealing manner, and the furnace tail kiln body 3 is connected to the drum 1 is directly connected to the working section near the discharge end; the hot gas conveying pipe 8 includes a hot gas conveying main pipe 81 and a hot gas conveying branch pipe 82; The two shell walls are rotationally sealed and connected, that is, if the furnace body 3 and the combustion furnace body 5 are integrated into one structure, the pipe wall of the hot gas delivery main pipe 81 and the shell shared by the combustion furnace body 5 and the furnace body 3 If the furnace body 3 and the combustion furnace body 5 are separated structures, the pipe wall of the hot gas conveying main pipe 81 is connected with the two adjacent shell walls of the combustion furnace body 5 and the furnace end kiln body 3 by a rotary seal. , the axis of the hot gas conveying main pipe 81 is coincident with the axis of the drum 1, one end of the hot gas conveying main pipe 81 is connected with the combustion furnace body 5, and the other end of the hot gas conveying main pipe 81 is closed; It is in fixed communication with the follower jacket 2 provided on the drum 1 , and the hot gas conveying branch pipe 82 is located in the furnace end kiln body 3 .

Wherein, the length of the hot gas conveying main pipe 81 is set as required. If it is necessary to communicate with a certain working section inside the drum 1 or the follower jacket 2 or the fixed jacket 12, the length of the hot air conveying main pipe 81 can be lengthened to extend to the drum 1 in the operating range. The part of the hot gas conveying main pipe 81 located in the drum 1 has one pipe or multiple pipes in parallel, specifically two, three, four or more pipes. If it is a plurality of parallel pipes, one end of the plurality of pipes is assembled into one pipe and then connected to the hot gas outlet 53 of the combustion furnace body 5 in a rotary and sealing manner, and the other ends of the plurality of pipes can be independently extended into the working condition section or assembled into a single pipe. The pipe extends into the working section. If the hot gas conveying main pipe 81 is in communication with at least one working section in the drum 1, one end of the hot gas conveying main pipe 81 extending into the working condition section is open, so that the hot gas can participate in direct contact heating; if the hot gas conveying main pipe 81 extends into the working condition One end in the condition section is open and communicated with the follower jacket 2, then the indirectly heated gas in the follower jacket 2 enters the hot gas delivery main pipe 81, and then the heated gas enters the condition section for direct contact heating , and finally the gas in the working condition section enters the furnace head device and is discharged; if the end of the hot gas delivery main pipe 81 extending into the working condition section is closed and communicated with the follower jacket 2, the heated gas in the hot gas delivery main pipe 81 enters In the follower jacket 2, together with the gas in the follower jacket 2, it is discharged into the furnace head device through the follower jacket 2. If one end of the hot gas delivery main pipe 81 that extends into the working section is open and communicates with the fixed jacket 12 , the heated gas in the hot gas delivery main pipe 81 enters the fixed jacket 12 and passes through together with the gas in the fixed jacket 12 The air outlet of the fixed jacket 12 itself is discharged. As shown in FIG. 1 , if the hot gas conveying main pipe 81 does not extend into the drum 1 , the length of the hot air conveying main pipe 81 is short, and one end of the hot air conveying main pipe 81 only intersects and communicates with the hot gas conveying branch pipe 82 . Since the axis of the hot gas conveying main pipe 81 coincides with the axis of the drum 1, the follower jacket 2 is fixed to the outer wall of the drum 1, and one end of the hot gas conveying branch pipe 82 is in fixed communication with the end of the follower jacket 2. Therefore, the hot gas conveying main pipe 81 is supported and fixed by the hot gas delivery branch pipe 82 .

When the segmented rotary kiln is working, the drum 1 drives the follower jacket 2 and the hot gas conveying pipe 8 to rotate relative to the kiln body 3 at the end of the furnace, and the pyrolysis gas and solid waste in the drum 1 are directly discharged from the open discharge end , into the furnace tail kiln body 3, the hot gas in the combustion furnace body 5 enters the follower jacket 2 through the hot gas delivery pipe 8. Since both the hot gas delivery main pipe 81 and the hot gas delivery branch pipe 82 are located in the combustion furnace body 5 and the furnace tail kiln body 3, the heat loss during the hot gas delivery process is reduced. In addition, the hot air conveying main pipe 81 located in the drum 1 can indirectly heat the material, which improves the heating efficiency.

In this embodiment, the same as the hot gas conveying pipe 8 in FIG. 1 , the hot gas conveying branch pipe 82 is located in the furnace tail kiln body 3, the difference is that the discharge end of the drum 1 is closed, and the furnace tail kiln body 3 and the drum 1 are closed. The outer peripheral wall of the discharge end is connected in a rotary and sealing manner; the discharge end of the furnace tail kiln body 3 and the drum 1 is communicated through the cylinder wall discharge mechanism 19, wherein the cylinder wall discharge mechanism 19 refers to FIG. 7; the cylinder wall discharge mechanism 19 consists of The outside of the drum 1 is inserted into the drum 1 obliquely in turn and passes through the discharge end.

During operation, the drum 1 drives the follower jacket 2 and the hot gas conveying pipe 8 to rotate together, and the pyrolysis gas and solid waste in the discharge end of the drum 1 are discharged through the discharge mechanism 19 of the cylinder wall and enter the furnace tail kiln body 3, and the gas is discharged. After solid separation, the pyrolysis gas enters the combustion furnace body 5 for combustion, and the generated hot gas is transported to the hot gas transport branch pipe 82 through the hot gas transport main pipe 81, and finally enters the follower jacket 2 for indirect heating of materials. If hot air needs to enter the drum 1, the hot air conveying main pipe 81 can be extended into the drum 1 to participate in the direct contact heating of the material.

Controllable discharge of pyrolysis gas and solid waste in the drum 1 is achieved through the discharge mechanism 19 on the cylinder wall. On the other hand, the discharge end of the above drum 1 is open, and the discharge of the hot blast stove without the discharge mechanism 19 of the cylinder wall is uncontrollable.

As shown in FIG. 1 , further, in this embodiment, the number of hot gas conveying branch pipes 82 in the above embodiment is multiple, and the hot gas conveying branch pipes 82 are evenly arranged along the conical surface, in an umbrella-shaped structure, and adjacent hot gas conveying branch pipes There is a gap between 82, which does not hinder the discharge of pyrolysis gas and solid waste in the drum 1. The umbrella-shaped hot gas delivery pipe 8 has a stable structure, and the hot gas delivery branch pipe 82 is preferably a straight pipe with a short delivery path, which is convenient for the hot gas delivery branch pipe 82 to be in fixed communication with the end of the follower jacket 2 .

Of course, the hot gas transport branch pipe 82 can also be an arc-shaped pipe, a bent pipe, etc., as long as the hot gas transport branch pipe 82 can be in fixed communication with the follower jacket 2 .

As shown in Figures 6 and 8, this embodiment provides another hot gas conveying pipe 8, the discharge end of the drum 1 is open, and the furnace tail kiln body 3 is connected with the outer peripheral wall of the discharge end of the drum 1 in a rotational and sealing manner, The furnace tail kiln body 3 is communicated with the discharge end of the drum 1; the hot gas conveying pipe 8 includes a hot gas conveying main pipe 81 and a hot gas conveying branch pipe 82; The wall or the two adjacent shell walls are rotationally sealed, that is, if the furnace end kiln body 3 and the combustion furnace body 5 are integrated into one structure, the pipe wall of the hot gas delivery main pipe 81 is connected with the combustion furnace body 5 and the furnace end kiln body 3. The shared shell wall is connected by rotation and sealing. If the furnace tail kiln body 3 and the combustion furnace body 5 are separated structures, the pipe wall of the hot gas delivery main pipe 81 is adjacent to the two shells of the combustion furnace body 5 and the furnace tail kiln body 3. The walls are rotationally sealed and connected, the axis of the hot gas conveying main pipe 81 coincides with the axis of the drum 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 connected with at least one working condition section and/or in the drum 1. Or the follower jacket 2 and/or the fixed jacket 12 are connected, the hot gas delivery main pipe 81 extends to one or more working conditions in the drum 1, and the part of the hot gas delivery main pipe 81 located in the drum 1 has one or more pipes. The juxtaposed canals may be two, three, four or more root canals. If there are multiple parallel tubes, one end of the multiple tubes is assembled into one tube and then connected to the hot gas outlet 53 of the combustion furnace body 5 in a rotary and sealing manner. The pipe extends into the working condition section; the hot gas conveying branch pipe 82 is located in the drum 1, and one end of the hot gas conveying branch pipe 82 is fixedly connected with the hot gas conveying main pipe 81, and the other end of the hot gas conveying branch pipe 82 is fixed with the inner wall of the drum 1 and is connected with the follower jacket 2 and/or the fixed jacket 10, that is, the other end of the hot gas delivery branch pipe 82 is fixed to the inner wall of the drum 1, and communicates with the follower jacket 2 or the fixed jacket 10 through the opening on the inner wall.

In this segmented rotary furnace, the hot gas conveying main pipe 81 is supported and fixed by the hot gas conveying branch pipe 82. During operation, the drum 1 drives the follower jacket 2 and the hot gas conveying pipe 8 to rotate relative to the kiln body 3 at the end of the furnace, and the fixed jacket 12 is fixed. When it does not move, the pyrolysis gas and solid waste in the drum 1 are directly discharged from the open discharge end and enter the furnace tail kiln body 3. The hot gas in the combustion furnace body 5 enters the hot gas conveying main pipe 81, and then passes through the hot gas conveying branch pipe 82. Enter the follower jacket 2 and/or the fixed jacket 12 for indirect heating.

If the one end of the hot gas delivery main pipe 81 that extends into the working condition section is open, so that the hot gas can participate in direct contact heating; While the gas directly enters the working condition section through the hot gas conveying main pipe 81, the heated gas entering the follower jacket 2 through the hot gas conveying branch pipe 82 enters the hot gas conveying main pipe 81 after the indirect heating is completed, and then enters the working condition section. Direct contact heating, and finally the gas in the working condition section enters the furnace head device and is discharged; if the end of the hot gas delivery main pipe 81 extending into the working condition section is closed and communicated with the follower jacket 2, then the hot gas delivery main pipe 81 is closed. The heating gas enters the follower jacket 2 and is discharged into the furnace head device through the follower jacket 2 together with the heating gas entering the follower jacket 2 through the hot gas delivery branch pipe 82 . If the end of the hot gas delivery main pipe 81 that protrudes into the working condition section is closed and communicated with the fixed jacket 12 , the heated gas in the hot gas delivery main pipe 81 enters the fixed jacket 12 , and enters the fixed jacket 12 through the hot gas delivery branch pipe 82 . The gas inside is discharged together through the gas outlet of the fixed jacket 12 itself.

Since most of the hot gas delivery main pipe 81 and the hot gas delivery branch pipes 82 are located in the furnace head kiln body 3, the heat loss during the hot gas delivery process is reduced. At the same time, the hot gas conveying pipe 8 is located in the drum 1. During the hot gas conveying in the hot gas conveying pipe 8, the partition wall can be heated to the material, which further improves the heating efficiency.

Further, the number of the hot gas conveying branch pipes 82 is multiple. Preferably, the axes of the multiple hot gas conveying branch pipes 82 are located in the same cross section of the drum 1 and are arranged in a radial shape, which can improve its structural stability and shorten the conveying path. . Of course, the plurality of hot gas conveying branch pipes 82 can also 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 10 . If the hot gas delivery main pipe 81 has a plurality of pipes, each pipe communicates with the follower jacket 2 or the fixed jacket 12 through a hot gas delivery branch pipe 82 .

As shown in Fig. 7, the hot gas conveying pipe 8 in this embodiment is the same as the hot gas conveying pipe 8 in Fig. 6 and Fig. 8, the difference is that the discharge end of the drum 1 is closed, The outer peripheral wall of the discharge end is connected in a rotary and sealed manner; the furnace tail kiln body 3 and the discharge end of the drum 1 are communicated through the cylinder wall discharge mechanism 19; And through the discharge end, the inlet of the cylinder wall discharge mechanism 19 is located in the drum 1, and the outlet of the cylinder wall discharge mechanism 19 is located in the furnace tail kiln body 3;

During operation, the drum 1 drives the follower jacket 2 and the hot gas conveying pipe 8 to rotate together, and the pyrolysis gas and solid waste in the discharge end of the drum 1 are discharged through the discharge mechanism 19 of the cylinder wall and enter the furnace tail kiln body 3, and the gas is discharged. After solid separation, the pyrolysis gas enters the combustion furnace body 5 for combustion, and the generated hot gas enters the drum 1 through the hot gas conveying main pipe 81 to participate in the direct contact heating of the material, and the hot gas enters the follower jacket 2 through the hot gas conveying branch pipe 82 and/or is fixed The indirect heating of the material is carried out in the jacket 10 .

Further, in the present embodiment, the cylinder wall discharging mechanism 19 is a cylinder wall screw discharging mechanism, and the cylinder wall screw discharging mechanism discharges materials through screw rotation.

As shown in Fig. 9, Fig. 10, Fig. 13, Fig. 15, Fig. 16, this embodiment provides another furnace tail device, the furnace tail device further includes a furnace tail air intake duct 14, and the furnace tail air intake duct 14 is fixed. The furnace tail air inlet 14 is connected with the outer peripheral wall of the drum 1 near the discharge end or the outer wall of the follower jacket 2 in a rotational and sealing manner, and the furnace tail air inlet 14 is connected with the follower jacket 2 and/or the fixed jacket 12 and/or At least one working section of the drum 1 is communicated, and the furnace tail air inlet 14 is provided with a hot gas inlet and a third ash discharge port 141 .

The difference between this furnace tail device and the above furnace tail device is that the furnace tail air inlet duct 14 is added, that is, the heating gas of the combustion furnace body 5 is not directly passed through the hot gas delivery pipe 8 into the follower jacket 2 and/or the fixed jacket 12 and/or at least one working section of the drum 1, but firstly, the heating gas of the combustion furnace body 5 is passed into the furnace tail air intake duct 14 through the hot gas delivery pipe 8, and then the hot gas is passed into the follower clamp through the furnace tail air intake duct 14. At least one operating section of the jacket 2 and/or the stationary jacket 12 and/or the drum 1 . In this way, the hot gas delivery pipe 8 is arranged on the outside of the combustion furnace body 5 , the furnace head kiln body 3 and the drum 1 , which can also realize the delivery of hot gas.

Specifically, as shown in FIG. 9 , the discharge end of the drum 1 is set open, the furnace tail kiln body 3 is directly connected to the discharge end of the drum 1, and the furnace tail air intake cylinder 14 is sealed and sleeved on the outer wall of the drum 1, and the furnace tail The air inlet duct 14 is fixed, the combustion furnace body 5 communicates with the hot gas inlet of the furnace tail air inlet duct 14 through the hot gas delivery pipe 8 , and the furnace tail air intake duct 14 communicates with the end of the follower jacket 2 . If a fixed jacket 12 is provided outside the drum 1 , the furnace tail gas inlet 14 and the fixed jacket 12 communicate with each other through an external pipeline, or through a pipeline provided inside the drum 1 . If the heating gas needs to be passed into the working condition section, the furnace tail gas inlet duct 14 is communicated with at least one working condition section through the gas supply pipe 22 arranged inside the drum 1 .

Further, on the basis of the segmented rotary kiln shown in FIG. 9 , the discharge end of the drum 1 is closed and arranged, the furnace tail kiln body 3 is connected with the outer peripheral wall of the discharge end of the drum 1 in a rotational and sealing manner, and the furnace tail kiln body 3. It communicates with the working condition section of the drum 1 near the discharge end through the cylinder wall discharge mechanism 19; The inlet of the charging mechanism 19 is located in the working condition section of the drum 1 close to the discharging end, and the outlet of the barrel wall discharging mechanism 19 is located in the furnace tail kiln body 3 . The rest of the structures, such as the furnace tail air inlet 14 , the follower jacket 2 , the fixed jacket 12 , etc. are the same as those shown in FIG. 9 . .

As shown in Fig. 10, Fig. 13, Fig. 15, Fig. 16, for the furnace tail device provided with the furnace tail air inlet duct 14, the discharge end of the drum 1 in this embodiment is closed and set, and the discharge end of the drum 1 is fixedly set There is a central discharge mechanism 17, and the furnace tail kiln body 1 realizes the indirect rotary sealing connection between the furnace tail kiln body 3 and the discharge end of the drum 1 through the rotary sealing connection with the central discharge mechanism 17. The furnace tail kiln body 3 and the drum 1 are close to each other. The working condition section of the discharge end is indirectly connected through the central discharge mechanism 19; the furnace tail air inlet 14 is connected to the end of the follower jacket 2; The jackets 12 are communicated through external pipes, or through pipes provided inside the drum 1 . If the heating gas needs to be passed into the working section, the furnace tail gas inlet 14 communicates with at least one working section and/or the follower jacket 2 and/or the fixed jacket 12 through the gas supply pipe 22 arranged inside the drum 1 .

During operation, the drum 1 and the central discharge mechanism 17 rotate together, and the material and gas phase at the discharge end of the drum 1 are transported to the furnace tail kiln body 3 through the central discharge mechanism 17. After the gas and solid in the furnace tail kiln body 3 are separated, The pyrolysis gas enters the combustion furnace body 5 (not shown in FIG. 10 ) for combustion, and the generated heating gas is introduced into the furnace tail air inlet duct 14 through the hot gas conveying pipe 8 (not shown in FIG. 10 ), and then the heating gas enters the follower. Indirect heating is performed in the movable jacket 2 and/or the fixed jacket 12 . The heating gas in the furnace tail gas inlet duct 14 communicates with at least one working section of the drum 1 and/or the follower jacket 2 and/or the fixed jacket 12 through the gas supply pipe 22 .

As an optimization, the furnace tail air intake duct 14 is covered outside the discharge end of the drum 1, and the two sides of the furnace tail air intake duct 14 are respectively connected to the cylinder wall of the discharge end of the drum 1 and the outer wall of the central discharge mechanism 17 in a rotational and sealing manner. In this way, the discharge end of the drum 1 can be covered in the furnace tail air intake duct 14 to maintain the temperature of the discharge end, and the rotating sealing surface of the furnace tail air intake duct 14 and the central discharge mechanism 17 is relatively small, which is beneficial to seal. Of course, both sides of the furnace tail air intake cylinder 14 can also be connected to the cylinder wall of the discharge end of the drum 1 in a rotational and sealing manner, but the discharge end of the drum 1 is partially exposed to the outside, which is not conducive to heat preservation, and the two ends of the furnace tail air intake cylinder 14 The rotating sealing surface is larger.

As shown in Fig. 10, Fig. 12, Fig. 13-Fig. 16, the air supply pipeline 22 connecting the furnace tail air inlet duct 14 and the working condition section in the drum 1 is optimized. The air supply pipeline 22 includes an air supply branch pipe 221 and an air supply main pipe 222. The branch pipe 221 is in communication with the furnace tail air inlet 14, one end of the gas supply main pipe 222 is in communication with the gas supply branch pipe 221, and the other end of the gas supply main pipe 222 is connected with at least one working section of the drum 1 and/or the follower jacket 2 and/or the fixed jacket 12 Connected. The air supply main pipe 222 has one pipe or multiple parallel pipes, specifically, two, three, four or more pipes. The number of the air supply branch pipes 221 can be one or more, and the multiple air supply branch pipes 221 are preferably communicated with the air supply main pipe 222 in a radial shape to improve the air supply uniformity. If the air supply main pipe 222 has multiple pipes, each pipe is connected to one The air supply branch pipe 221 communicates with each other.

During operation, the heating gas in the combustion furnace body 5 enters the furnace tail air inlet duct 14, and then the heated gas in the furnace tail air inlet duct 14 enters the air supply main pipe 222 through the air supply branch pipe 221. If the gas supply main pipe 222 is in communication with the working condition section, the gas supply main pipe 222 will introduce the heating gas into the working condition section for direct contact heating of the material, and finally directly discharge it to the furnace head device; as shown in Figure 10, Figure 13, Figure 15, if One end of the gas supply main pipe 222 that extends into the working condition section is open, and is communicated with the follower jacket 2, then the gas supply main pipe 222 introduces the heating gas into the working condition section for direct heating, and at the same time directly enters through the furnace tail gas inlet tube 14 After the heating gas in the follower jacket 2 is indirectly heated, it enters the air supply main pipe 222, and is then introduced into the working condition section for direct contact heating; as shown in Figure 16, if the air supply main pipe 222 extends into the working condition section, one end is closed and communicate with the follower jacket 2, the gas supply main pipe 222 will introduce the heating gas into the follower jacket 2, and pass through the follower jacket 2 together with the heating gas directly introduced into the follower jacket 2 through the furnace tail gas inlet 14. It is discharged into the furnace head device; if the end of the gas supply main pipe 222 extending into the working condition section is closed and communicated with the fixed jacket 12, the gas supply main pipe 222 will introduce the heating gas into the fixed jacket 12, and the heating gas in the fixed jacket 12 The gas is discharged integrally from the outlet of the stationary jacket 12 itself.

As shown in FIGS. 10-11 , in this embodiment, the center discharge mechanism 17 is a center screw discharge mechanism or a center piston discharge mechanism, and a turning plate 18 is fixed at the entrance of the center discharge mechanism 17, and the material is turned over. The plate surface of the plate 18 is parallel to the axis of the drum 1, the turning plate 18 is extended and fixed on the inner wall of the drum 1, and the turning plate 18, the center discharge mechanism 17 and the drum 1 rotate together; The barrel, the central screw and the second power component, one end of the central discharging barrel is fixed to the discharging end of the drum 1, the other end is connected with the furnace tail kiln body 3 in a rotational and sealing manner, and the central discharging barrel rotates with the furnace tail gas inlet 14 Sealed connection, the central discharge cylinder is provided with an inlet and an outlet, the inlet is opened on the wall of the cylinder, and the outlet is preferably arranged at the end of the central discharge cylinder, and the central discharge cylinder rotates together with the drum 1 and the turning plate 18 as a whole; The central helical rotation is arranged on the central discharging barrel; the second power component is drivingly connected with the central helical for driving the central helical to rotate relative to the central discharging barrel.

When the central screw discharging mechanism is working, the drum 1, the turning plate 18 and the central discharging cylinder rotate together, and the turning plate 18 pockets the material in the drum 1 and guides it into the inlet of the central discharging cylinder, and the second power component works , drive the central screw to rotate, and transport the material to the furnace tail kiln body 3, and the gas in the discharge end of the drum 1 can also enter the furnace tail kiln body 3 through the central screw discharge mechanism. The discharge of the drum 1 is controlled by the start and stop of the second power component, and the controllable discharge is realized.

In the same way, the central piston discharge mechanism realizes the conveying of materials through the reciprocating movement of the piston, which will not be described in detail here.

As shown in FIG. 13 , FIG. 16 and FIG. 17 , in this embodiment, the segmented rotary kiln further includes an exhaust box 20 in the furnace which is fixedly arranged, the drum 1 passes through the exhaust box 20 in the furnace, and the drum The cylinder wall of 1 is connected with the exhaust box 20 in the furnace in a rotational and sealing manner, and a working section corresponding to the exhaust box 20 in the furnace or the follow-up jacket 2 in the drum 1 is communicated with the exhaust box 20 in the furnace. The exhaust box in the furnace 20 is provided with a second exhaust port 201 and a fourth ash discharge port 202.

When working, the gas in a certain working condition section in the drum 1 or the gas in the follower jacket 2 can be passed into the furnace exhaust box 20 which is fixed and fixed, and the gas passes through the first part of the furnace exhaust box 20. The second exhaust port 201 is discharged, and the dust separated from the gas is discharged from the fourth dust discharge port 202 . Therefore, the gas in the working condition section or the gas in the follower jacket 2 does not need to enter the furnace head kiln body 10 to be discharged, and the exhaust position of the drum 1 in the axial direction can be arbitrarily selected.

As shown in FIG. 13 and FIG. 17 , further, in this embodiment, the cylinder wall of the exhaust box 20 in the corresponding furnace of the drum 1 is provided with a gas outlet tube group 23, and the inside of the drum 1 passes through the gas outlet tube group 23 and the furnace. The middle exhaust box 20 is communicated.

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

Specifically, the gas outlet pipe group 23 includes a vertical pipe and a horizontal pipe, the vertical pipe is fixed in the drum 1, the vertical pipe communicates with the exhaust box 20 in the furnace, the horizontal pipe communicates with the vertical pipe, and both ends of the horizontal pipe They are all communicated with the inside of the drum 1, and there is a certain distance between the horizontal pipe and the inner wall of the drum 1 to prevent the material of the drum 1 from entering the horizontal pipe.

Of course, the gas outlet pipe group 23 may also include only vertical pipes, as long as the gas in the working condition section can be discharged into the furnace exhaust box 20, and is not limited to the structure listed in this embodiment.

As shown in FIG. 16 , when the exhaust box 20 in the furnace is communicated with the follower jacket 2, a through hole is directly opened on the outer cylinder wall of the follower jacket 2. During the rotation of the drum 1, the through hole is always connected to The furnace exhaust box 20 is connected, so the heating gas heated in the follower jacket 2 is discharged into the furnace exhaust box 20 through the through hole, and then discharged through the second exhaust port 201 of the furnace exhaust box 20 .

On this basis, when the end of the hot gas delivery main pipe 81 or the gas supply main pipe 222 that extends into the working condition section is closed and communicated with the follower jacket 2, the indirect heating gas in the hot gas delivery main pipe 81 and the gas supply main pipe 222 will be heated first. The heating gas does not need to be discharged through the furnace head kiln body 10, and the exhaust position of the drum 1 in the axial direction can be arbitrarily selected.

In this embodiment, the segmented rotary kiln further includes at least one fixed partition plate arranged in the working condition section of the drum 1; the fixed partition plate is fixed in the drum 1, and an opening is provided on the fixed partition plate, and the opening is close to the drum 1 of the barrel wall setting.

When working, the drum 1 rotates continuously in the same direction. When the opening of the fixed partition is located below, the solid material in the drum 1 can enter the downstream through the opening. At the same time, the opening will be blocked by the solid material, restricting the flow of gas. When the opening of the fixed partition is located below, the opening is not blocked by solid materials, and the gas can flow. By arranging fixed baffles in the working condition sections, each working section can be partitioned, and the gas flow between different sections in each working section can be partially restricted, which is conducive to the formation of the temperature gradient in each section and the working conditions. independence.

Further, in this embodiment, in the case where the temperature difference between some adjacent working conditions is relatively large, the outer insulation layer is provided on the two sides of the segmented plate 15, or the interior of the segmented plate 15 is provided with an external thermal insulation layer. The thermal insulation interlayer realizes the temperature isolation of the two working sections, so as to better complete the reaction of the respective working sections.

As shown in FIG. 12 , in this embodiment, a thermal insulation layer 21 is provided on the cylinder wall of the drum 1 to improve the thermal insulation effect of the drum 1 and reduce energy loss.

As shown in FIG. 1 , a driving device and a supporting device are provided outside the drum 1 , and the driving device is used to drive the drum 1 to continuously rotate in the same direction around its axis. The support device is used to rotate the support drum 1 to continuously rotate around its axis in the same direction.

The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments, and the same and similar parts between the various embodiments can be referred to each other.

The above description of the disclosed embodiments enables 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 implemented in 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

A segmented rotary kiln, comprising a drum (1), a furnace head device and a furnace tail device, the two ends of the drum (1) respectively rotate with the furnace head device and the furnace tail device which are fixedly arranged Sealed connection, the drum (1) can be continuously rotated in the same direction, and it is characterized in that the segmented rotary kiln further comprises:

One or more segmented plates (15) are arranged in the drum (1), and the edges of the segmented plates (15) are sealingly connected with the inner wall of the drum (1), for connecting the drum (1) It is divided into several independent working condition sections along the axial direction;

A solid-phase conveying device (9), two ends of the solid-phase conveying device (9) are communicated with two adjacent working condition sections, and are used for conveying solid materials between two adjacent working condition sections.
The segmented rotary kiln according to claim 1, characterized in that the solid-phase conveying device (9) is a screw conveyor, and the screw conveyor is inclined and sequentially inserted into the pair from the outside of the drum (1). It should be in the two adjacent working condition sections of the screw conveyor and pass through the segment plate (15), and the material inlet (911) of the screw conveyor is located in the two adjacent working condition sections In one of the working condition sections close to the burner head device, the material outlet (912) of the screw conveyor is located in the other one of the two adjacent working condition sections away from the burner head device within the working section.
The segmented rotary kiln according to claim 2, characterized in that, the screw conveyor comprises a power part (93), a screw part (92) and a cylinder (91), and the screw part (92) is provided in the Inside the cylinder (91), the screw member (92) is connected with the power member (93) in a driving manner, and the material outlet (912) of the screw conveyor is opened at the end of the cylinder (91) , the cylinder body (91) is not provided on the part of the screw conveyor which is located in the working condition section close to the furnace head device.
The segmented rotary kiln according to claim 3, characterized in that the helical part (92) is an intermittent helical or a continuous helical; and/or the helical part (92) is close to the surface of the screw conveyor. There is a distance between one end of the material outlet (912) and the end of the cylinder (91).
The segmented rotary kiln according to claim 3, further comprising a controller and a position switch, the power component (93) and the position switch are both signally connected to the controller, and the position switch Set on the drum (1), when the solid-phase conveying device (9) is within the material accumulation range directly below the drum (1), the position switch is triggered, and the controller controls the power component (93) ) operation, the power part (93) drives the screw part (92) to move.
The segmented rotary kiln according to claim 5, wherein the position switch is any one or a combination of a photoelectric switch or a magnetic induction switch.
The segmented rotary kiln according to claim 1, characterized in that, the solid-phase conveying device (9) is arranged outside the drum (1), and the inlet and the outlet of the solid-phase conveying device (9) They are respectively connected with the cylinder walls of the two adjacent working condition sections of the solid phase conveying device (9).
The segmented rotary kiln according to claim 7, wherein the solid phase conveying device (9) is a screw conveyor or a piston conveyor.
The segmented rotary kiln according to claim 1, wherein the furnace head device comprises:

A furnace head kiln body (10), wherein one or more exhaust chambers are provided in the furnace head kiln body (10), and each of the exhaust chambers is provided with a first exhaust port (101) and a first exhaust port (101) and a first exhaust port (101). The ash discharge port (102), the furnace head kiln body (10) is fixedly connected with the feed end of the drum (1) in a rotational and sealing manner, and each of the exhaust chambers is correspondingly connected to the drum (1) one of the described operating conditions;

A feeding mechanism (11), the feeding mechanism (11) is sealed through the furnace head kiln body (10) and protrudes into the drum (1), and the feeding mechanism (11) is provided with a feeding mouth.
The segmented rotary kiln according to claim 9, further comprising a follower jacket (2) and/or a fixed jacket (12);

The follow-up jacket (2) is fixed on the cylinder wall of the drum (1), the inside of the follow-up jacket (2) is used for feeding heating medium, and the follow-up jacket (2) is connected to a the exhaust chamber is communicated;

The fixed jacket (12) is fixedly arranged, the roller (1) passes through the fixed jacket (12), and the cylinder wall of the roller (1) is rotatably sealed with the fixed jacket (12). connected, and the fixing jacket (12) is used for passing heating medium.
The segmented rotary kiln according to claim 10, characterized in that the feed end of the drum (1) has a variable diameter section, and the outer diameter of the variable diameter section is smaller than the remaining shafts of the drum (1). The outer diameter of the section, the furnace head and kiln body (10) are connected in a rotational and sealing manner with the variable diameter section.
The segmented rotary kiln according to claim 1, further comprising a follower jacket (2) and/or a fixed jacket (12);

The follow-up jacket (2) is fixed on the cylinder wall of the drum (1), and the inside of the follow-up jacket (2) is used for feeding a heating medium;

The fixed jacket (12) is fixedly arranged, the roller (1) passes through the fixed jacket (12), and the cylinder wall of the roller (1) is rotatably sealed with the fixed jacket (12). connected, and the fixing jacket (12) is used for passing heating medium.
The segmented rotary kiln according to any one of claims 10-12, characterized in that the follower jacket (2) is in communication with at least one of the working condition sections of the drum (1); and/ Or the fixed jacket (12) communicates with at least one of the working conditions of the drum (1).
The segmented rotary furnace according to any one of claims 10-12, wherein the furnace tail device comprises:

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), and the furnace tail kiln body (3) is fixedly connected to the The discharge end of the drum (1) is directly or indirectly connected by rotation and sealing, and the furnace tail kiln body (3) is directly or indirectly connected with the working condition section of the drum (1) near the discharge end.
The segmented rotary furnace according to claim 14, characterized in that it further comprises a combustion furnace body (5) and a burner (6), and the combustion furnace body (5) is provided with an air inlet (51) and a hot gas outlet. (53) and a second ash discharge port (52), the burner (6) communicates with the combustion furnace body (5), and is used for combustion in the combustion furnace body (5) to generate heating gas, the The air inlet (51) is used to introduce oxygen-containing gas, and the hot gas outlet (53) communicates with the follower jacket (2) and/or the fixed jacket (12) and/or through the hot gas delivery pipe (8). Or at least one of the working condition sections of the drum (1) is in communication.
The segmented rotary furnace according to claim 15, wherein the pyrolysis gas outlet (32) of the furnace tail kiln body (3) and the combustion furnace body (5) pass through a pyrolysis gas conveying pipe ( 4) Communication is used to pass the pyrolysis gas in the furnace tail kiln body (3) into the combustion furnace body (5) for combustion.
The segmented rotary furnace according to claim 16, characterized in that, the pyrolysis gas conveying pipe (4) is arranged in the combustion furnace body (5), and the pyrolysis gas conveying pipe (4) has a One end is communicated with the pyrolysis gas outlet (32), and the other end enters the interior of the combustion furnace body (5).
The segmented rotary furnace according to any one of claims 15-17, characterized in that, the combustion furnace body (5) is further provided with a middle partition plate (7), and the middle partition plate (7) The combustion furnace body (5) is divided into a combustion area and a hot gas discharge area, and the burner (6), the air inlet (51) and the second ash discharge port (52) are all located in the combustion area, so The hot gas outlet (53) is located in the hot gas discharge area, and the combustion area communicates with the upper part of the hot gas discharge area.
The segmented rotary kiln according to claim 16, characterized in that, the furnace tail kiln body (3) and the combustion furnace body (5) are an integrated structure or a split structure.
The segmented rotary kiln according to claim 15, characterized in that the discharge end of the drum (1) is open, and the discharge end of the furnace end kiln body (3) and the drum (1) is open. The outer peripheral wall of the end is connected in a rotary and sealing manner, and the furnace tail kiln body (3) is directly communicated with the working condition section of the drum (1) close to the discharge end;

The hot gas delivery pipe (8) includes:

A hot gas delivery main pipe (81), the hot gas delivery main pipe (81) and the hot gas outlet (53) are rotatably and sealedly connected, and the axis of the hot gas delivery main pipe (81) coincides with the axis of the drum (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 closed or connected to at least one working section and/or all parts in the drum (1). The follower jacket (2) and/or the fixed jacket (12) communicate with each other, and the part of the hot gas delivery main pipe (81) located in the drum (1) has one pipe or a plurality of parallel pipes ;

The hot gas delivery branch pipe (82) is in fixed communication with the hot gas delivery main pipe (81) and the follower jacket (2) provided on the drum (1) at both ends, and the hot gas delivery branch pipe (82) is located in the in the furnace tail kiln body (3).
The hot blast stove according to claim 15, characterized in that the discharge end of the drum (1) is closed and arranged, and the furnace tail kiln body (3) rotates with the outer peripheral wall of the discharge end of the drum (1). sealed connection; the furnace tail kiln body (3) is communicated with the working condition section of the drum (1) close to the discharge end through the cylinder wall discharge mechanism (19); the cylinder wall discharge mechanism (19) is formed by the The outside of the drum (1) is inserted into the drum (1) obliquely in sequence and passes through the discharge end, and the inlet of the cylindrical wall discharge mechanism (19) is located at the position of the drum (1) close to the discharge end. In the above working condition section, the outlet of the barrel wall discharge mechanism (19) is located in the furnace tail kiln body (3);

The hot gas delivery pipe (8) includes:

A hot gas delivery main pipe (81), the hot gas delivery main pipe (81) and the hot gas outlet (53) are rotatably and sealedly connected, and the axis of the hot gas delivery main pipe (81) coincides with the axis of the drum (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 closed or connected to at least one working section and/or all parts in the drum (1). The follower jacket (2) and/or the fixed jacket (12) communicate with each other, and the part of the hot gas delivery main pipe (81) located in the drum (1) has one pipe or a plurality of parallel pipes ;

The hot gas delivery branch pipe (82) is in fixed communication with the hot gas delivery main pipe (81) and the follower jacket (2) provided on the drum (1) at both ends, and the hot gas delivery branch pipe (82) is located in the in the furnace tail kiln body (3).
The segmented rotary kiln according to claim 20 or 21, characterized in that the number of the hot gas conveying branch pipes (82) is plural, and the hot gas conveying branch pipes (82) are evenly arranged along the conical surface and are umbrella-shaped structure, or the hot gas conveying branch pipes are evenly arranged along a plane perpendicular to the axis of the hot gas conveying main pipe; there is a gap between adjacent hot gas conveying branch pipes (82).
The segmented rotary kiln according to claim 15, characterized in that the discharge end of the drum (1) is open, and the discharge end of the furnace end kiln body (3) and the drum (1) is open. The outer peripheral wall of the end is connected in a rotary and sealing manner, and the furnace tail kiln body (3) is directly connected with the working condition section of the drum 91 close to the discharge end;

The hot gas delivery pipe (8) includes:

A hot gas delivery main pipe (81), one end of the hot gas delivery main pipe (81) is rotatably and sealedly connected to the hot gas outlet (53), and the axis of the hot gas delivery main pipe (81) coincides with the axis of the drum (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 connected to at least one of the working conditions in the drum (1). segment and/or said follower jacket (2) and/or said stationary jacket (12), the part of said hot gas delivery main pipe (81) located inside said drum (1) has a pipe or a plurality of tubes in parallel;

A hot gas transport branch pipe (82), the hot gas transport branch pipe (82) is located in the drum (1), and one end of the hot gas transport branch pipe (82) is in fixed communication with the hot gas transport main pipe (81), the hot gas transport pipe (82) The other end of the delivery branch pipe (82) communicates with the follower jacket (2) and/or the fixed jacket (12).
The segmented rotary kiln according to claim 15, characterized in that the discharge end of the drum (1) is closed and arranged, and the furnace tail kiln body (3) is connected to the discharge end of the drum (1). The outer peripheral wall is connected in a rotating and sealing manner; the furnace tail kiln body (3) is communicated with the working condition section of the drum (1) close to the discharge end through a cylinder wall discharge mechanism (19); the cylinder wall discharge mechanism (19) ) is inserted into the drum (1) obliquely from the outside of the drum (1) in turn, and passes through the discharge end, and the inlet of the cylindrical wall discharge mechanism (19) is located close to the drum (1). In the working condition section of the discharging end, the outlet of the cylindrical wall discharging mechanism (19) is located in the furnace tail kiln body (3);

The hot gas delivery pipe (8) includes:

A hot gas delivery main pipe (81), one end of the hot gas delivery main pipe (81) is rotatably and sealedly connected to the hot gas outlet (53), and the axis of the hot gas delivery main pipe (81) coincides with the axis of the drum (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 connected to at least one of the working conditions in the drum (1). And/or the follower jacket (2) and/or the fixed jacket (12) are communicated, and the part of the hot gas conveying main pipe (81) located in the drum (1) has one or more pipes. juxtaposed tubes;

A hot gas transport branch pipe (82), the hot gas transport branch pipe (82) is located in the drum (1), and one end of the hot gas transport branch pipe (82) is in fixed communication 14 with the hot gas transport main pipe (81). The other end of the hot gas delivery branch pipe (82) communicates with the follower jacket (2) and/or the fixed jacket (12).
The segmented rotary kiln according to claim 23 or 24, characterized in that the number of the hot gas conveying branch pipes (82) is plural, and the hot gas conveying branch pipes (82) are evenly arranged in a radial shape.
The segmented rotary kiln according to claim 21 or 24, characterized in that, the barrel wall discharge mechanism (19) is a barrel wall screw discharge mechanism.
The segmented rotary furnace according to claim 15, wherein the furnace tail device further comprises:

A furnace tail air intake cylinder (14), the furnace tail air intake cylinder (14) is fixedly arranged, and the furnace tail air intake cylinder (14) and the outer peripheral wall of the drum (1) near the discharge end or a follow-up jacket The outer wall of (2) is rotationally sealed, and the furnace tail air inlet cylinder (14) is at least one of the follower jacket (2) and/or the fixed jacket (12) and/or the drum (1). One of the working condition sections is communicated, and the furnace tail air intake tube (14) is provided with a hot gas inlet and a third ash discharge port (141), and the hot gas inlet is connected to the hot gas outlet (53) of the combustion furnace body (5). Connected.
The segmented rotary kiln according to claim 27, characterized in that the discharge end of the drum (1) is closed and arranged, and the furnace tail kiln body (3) is connected to the discharge end of the drum (1). The outer peripheral wall is connected in a rotary and sealing manner, and the furnace tail kiln body (3) is communicated with the working condition section of the drum (1) close to the discharge end through a cylinder wall discharge mechanism (19); the cylinder wall discharge mechanism (19) ) is inserted into the drum (1) obliquely from the outside of the drum (1) in turn, and passes through the discharge end, and the inlet of the barrel wall discharge machine (19) is located close to the drum (1). In the working condition section of the discharging end, the outlet of the cylindrical wall discharging mechanism (19) is located in the furnace tail kiln body (3).
The segmented rotary kiln according to claim 27, characterized in that the discharge end of the drum (1) is closed, and the discharge end of the drum (1) is fixedly provided with a central discharge mechanism (17). , the furnace tail kiln body (3) realizes the indirect rotary sealing connection between the furnace tail kiln body (3) and the discharge end of the drum (1) by rotating and 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 discharging end through the central discharging mechanism (17).
The segmented rotary kiln according to claim 29, characterized in that the furnace tail air intake duct (14) is covered outside the discharge end of the drum (1), and the furnace tail air intake duct (14) is connected to the outside of the discharge end of the drum (1). The outer walls of the central discharging mechanism (17) are connected in a rotational and sealing manner.
The segmented rotary kiln according to any one of claims 27-30, characterized in that, an air supply pipe (22) is provided in the drum (1), and the furnace tail air intake cylinder (14) passes the air supply through the air supply pipe (22). The pipeline (22) communicates with at least one of the working conditions of the drum (1) and/or the follower jacket (2) and/or the fixed jacket (12); the air supply pipeline (22) includes an air supply main pipe (222) and an air supply branch pipe (221), the air supply branch pipe (221) is in communication with the furnace tail gas inlet cylinder (14), and one end of the air supply main pipe (222) is in communication with the air supply branch pipe (221), The other end of the air supply main pipe (222) is communicated with at least one of the working condition sections of the drum (1) and/or the follower jacket (2) and/or the fixed jacket (12), The air supply main pipe (222) has one pipe or a plurality of pipes in parallel.
The segmented rotary kiln according to claim 30, wherein the central discharging mechanism (17) is a central screw discharging mechanism or a central piston discharging mechanism, and the inlet of the central discharging mechanism (17) is A turning plate (18) is fixed at the place, and the turning plate (18) is extended and fixed on the inner wall of the drum (1);

The center screw discharge mechanism includes:

A central discharge cylinder, one end of the central discharge cylinder is fixed to the discharge end of the drum (1), and the other end is connected with the furnace tail kiln body (3) in a rotational and sealing manner, and the central discharge cylinder is connected to the The furnace tail air intake cylinder (14) is connected in a rotary seal;

a central screw, which is rotatably arranged on the central discharge cylinder;

The second power component is drivingly connected with the central screw, and is used for driving the central screw to rotate relative to the central discharge cylinder.
The segmented rotary furnace according to any one of claims 1-12, 15-17, 19-21, 23-24, and 27-30, characterized in that it further comprises a furnace exhaust box that is fixedly arranged. (20), the drum (1) passes through the exhaust box (20) in the furnace, and the cylinder wall of the drum (1) is connected with the exhaust box (20) in the furnace in a rotational and sealing manner, and the One of the working condition sections in the drum (1) corresponding to the exhaust box (20) in the furnace or the follower jacket (2) is communicated with the exhaust box (20) in the furnace, and the furnace The exhaust box (20) is provided with a second exhaust port (201) and a fourth ash discharge port (202).
The segmented rotary kiln according to claim 33, characterized in that, a gas outlet pipe group (23) is provided on the cylinder wall of the drum (1) corresponding to the exhaust box (20) in the furnace, and the The furnace exhaust box (20) and the inside of the drum (1) are communicated through the gas outlet pipe group (23).
The segmented rotary kiln according to any one of claims 1-12, 15-17, 19-21, 23-24, and 27-30, characterized in that it further comprises: At least one fixed baffle in the working condition section; the fixed baffle is fixed in the drum (1), and an opening is provided on the fixed baffle, and the opening is close to the drum of the drum (1). wall setting.
The segmented rotary kiln according to any one of claims 1-12, 15-17, 19-21, 23-24, 27-30, characterized in that, a cylindrical wall of the drum (1) is provided with Insulation layer (21).