A vertical pyrolysis furnace discharging stirring system

Abstract

The present invention discloses a novel vertical pyrolysis furnace discharging and stirring system, which relates to the field of chemical equipment, including a compacting mechanism, a stirring mechanism and a discharging mechanism which are sequentially arranged in the furnace body from top to bottom; the compacting mechanism has a compacting and leveling effect on the materials in its compacting area, which can effectively prevent the materials in the furnace from being loosely distributed, and ensure that the volume in the furnace is fully utilized; the stirring mechanism can not only stir the materials in the furnace, ensure uniform pyrolysis of the raw materials, but also prevent slagging in the furnace, and ensure the normal operation of the system; the discharging mechanism, when discharging, the materials are evenly discharged from the furnace to the outside, promoting the uniform pyrolysis process, and when not discharging, the mechanism has no discharging function, and can cooperate with the stirring mechanism to form a double stirring effect. In addition, a plurality of discharging ports are evenly distributed on the base of the furnace body of the present invention, which can ensure timely and stable discharging. It can be seen that the present invention solves the problems of uneven discharging and pyrolysis of existing pyrolysis furnaces, slagging of pyrolysis furnaces, and loose distribution of low-density raw materials in pyrolysis furnaces, and has strong practicality.

Description

Technical Field

[0001] The invention relates to the field of chemical equipment, in particular to a vertical pyrolysis furnace discharging stirring system. Background Art

[0002] At present, the main discharge method of vertical pyrolysis furnace is that the material falls to the discharge hopper by gravity, and then the external spiral discharge device is used for transportation, so as to realize the transportation of the material from the pyrolysis carbonization area in the furnace to the outside of the furnace. In the process of the material falling inside the furnace body under gravity, there is uneven discharge, and it is difficult to ensure that the material plane falls evenly, which will lead to uneven carbonization degree; in addition, if slagging occurs in the discharge area, it will block the discharge port and affect the normal operation of the equipment.

[0003] The patent number CN204111673U mentions a new type of biomass continuous pyrolysis furnace, whose structure from top to bottom is: feeding section, stage, air cooling section and water cooling section. It mentions a material-pickup mechanism, which is respectively arranged in the feeding section and the water cooling section. This material-pickup mechanism makes a circular motion along the inner wall of the furnace body. Although the material-pickup effect is significant, it is difficult to achieve uniform material drop, and it is impossible to ensure uniform and sufficient pyrolysis. In addition, since there is no material-pickup rod designed inside the furnace body, there is still a risk of discharge blockage due to slagging.

[0004] In summary, the existing vertical pyrolysis furnace still has the following problems: when discharging, the material in the discharging area mainly falls irregularly. Although an auxiliary discharging mechanism is added, it is difficult to ensure the uniform falling of the material; there is little consideration for problems such as slagging in the furnace; and there are problems such as loose distribution of low-density raw materials in the pyrolysis furnace. Therefore, in view of the above problems of the existing vertical pyrolysis equipment, the present invention proposes a new type of compaction, stirring and discharging system for a vertical pyrolysis furnace, which can effectively solve the existing problems. Summary of the invention

[0005] The purpose of the present invention is to provide a novel vertical pyrolysis furnace compaction, stirring and discharging system, which is mainly used to solve the problems of existing pyrolysis furnace discharging, uneven pyrolysis, slagging in pyrolysis furnace and loose distribution of low-density raw materials in the pyrolysis furnace.

[0006] To achieve the above object, the present invention provides the following solutions:

[0007] The present invention provides a discharging and stirring system for a vertical pyrolysis furnace, comprising a compacting mechanism, a stirring mechanism and a discharging mechanism which are sequentially arranged in a furnace body from top to bottom, wherein the compacting mechanism is used for compacting materials, the stirring mechanism is used for stirring materials in the furnace, and the discharging mechanism is used for discharging materials from the furnace body to the outside.

[0008] Optionally, a feed port is provided on the top of the furnace body, and the compacting mechanism is provided on one side of the feed port; the compacting mechanism includes a compacting plate, a rotating shaft and a motor, the top end of the rotating shaft is connected to the motor, and a plurality of compacting plates are installed at circumferential intervals at the bottom end of the rotating shaft.

[0009] Optionally, the compacting plates are arranged at an angle with a horizontal plane, and reinforcing ribs are arranged on each compacting plate.

[0010] Optionally, the stirring mechanism includes a second rotating shaft, a second motor and a material-moving rod, the bottom end of the second rotating shaft is connected to the second motor, and a plurality of the material-moving rods are installed on the top end of the second rotating shaft.

[0011] Optionally, the material-moving rods are distributed at intervals in the circumferential direction and the axial direction of the second rotating shaft, and the material-moving rods located at different axial heights are distributed in a staggered manner.

[0012] Optionally, the discharging mechanism includes a plurality of discharging rods circumferentially arranged on the rotating shaft 2; one side of the discharging rod is a stirring surface, and the other side is a discharging curved surface, and an end lever is provided at the end of the discharging curved surface; when the motor 2 drives the rotating shaft 2 to rotate so that the stirring surface pushes the material, no material is discharged; when the motor 2 drives the rotating shaft 2 to rotate so that the discharging curved surface pushes the material, the material can be pushed to the discharging port of the furnace body and discharged.

[0013] Optionally, a plurality of discharge ports are evenly distributed on the circumference of the base of the furnace body, and each of the discharge ports is located within the discharge range of the discharge mechanism.

[0014] Optionally, an air distribution plate is further provided in the furnace body, and the air distribution plate is installed on the second rotating shaft.

[0015] Optionally, a pressure-stabilizing exhaust port is provided on the top of the furnace body, a pyrolysis gas upper outlet, an air inlet and a pyrolysis gas reflux inlet are provided on one side of the furnace body in sequence from top to bottom, and an ignition port is provided on the bottom of the other side of the furnace body.

[0016] Optionally, the feeding zone of the furnace body is provided with a material level meter, and the pyrolysis zone of the furnace body is provided with a thermometer for real-time monitoring of the temperature inside the furnace body, the thermometer is connected to the stirring mechanism and the discharging mechanism signal, and the material level meter is connected to the compacting mechanism and the feeding mechanism signal.

[0017] Compared with the prior art, the present invention has achieved the following technical effects:

[0018] The new vertical pyrolysis furnace compaction, stirring and discharging system proposed by the present invention has a compaction mechanism that can compact and level the materials in its compaction area, which can effectively prevent the loose distribution of materials in the furnace and ensure that the volume in the furnace is fully utilized; the stirring mechanism can not only stir the materials in the furnace to ensure uniform pyrolysis of the raw materials, but also prevent slagging in the furnace to ensure the normal operation of the system; the discharging mechanism, when discharging, the materials are evenly discharged from the furnace to the outside, promoting the uniform pyrolysis process, and when not discharging, the mechanism has no discharging function, and can cooperate with the stirring mechanism to form a double stirring effect. In addition, multiple discharging ports are evenly distributed on the base of the furnace body of the present invention, which can ensure timely and stable discharging.

[0019] It can be seen that the present invention solves the problems of the existing pyrolysis furnace discharge, uneven pyrolysis, slagging in the pyrolysis furnace and loose distribution of low-density raw materials in the pyrolysis furnace, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0021] Figure 1 It is a structural schematic diagram of the vertical pyrolysis furnace of the present invention;

[0022] Figure 2 It is a flow chart of the compaction, stirring and discharging system of the vertical pyrolysis furnace of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the compacting mechanism of the present invention;

[0024] Figure 4-1 It is a structural schematic diagram of the stirring mechanism of the present invention;

[0025] Figure 4-2 for Figure 4-1 A top view of

[0026] Figure 5 It is a structural schematic diagram of the discharging mechanism of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the furnace base of the present invention;

[0028] Among them, the accompanying drawings are marked as: 1-feeding port, 2-bearing, 3-pressure-stabilizing exhaust port, 4-motor one, 5-compacting mechanism, 51-compacting plate, 52-reinforcement rib, 53-spline one, 6, 7-pyrolysis gas upper outlet, 8-stirring mechanism, 81-spline two, 82-driving rod, 9-motor two, 10-air inlet one, 11-air distribution plate, 12-air inlet two, 13-pyrolysis gas reflux inlet, 14-discharging mechanism, 141-end lever, 142-discharging curved surface, 143-stirring surface, 144-spline three, 15-furnace base, 151-reinforcement rib, 152-motor support, 153-discharging port, 16-ignition port, 17-motor three, 18-level meter one, 19-level meter two, 20-thermometer, 21-rotating shaft one, 22-rotating shaft two. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Embodiment 1:

[0032] like Figure 1 As shown, this embodiment provides a novel vertical pyrolysis furnace compaction, stirring and discharging system, including a compaction mechanism 5, a stirring mechanism 8 and a discharging mechanism 14 which are sequentially arranged in the furnace body from top to bottom. The structure of each mechanism is as follows;

[0033] like Figure 3 As shown, the compacting mechanism 5 is mainly composed of a compacting plate 51, a spline 53 and a reinforcing rib 52. The compacting plate 51 is circumferentially mounted on the spline 53, and the compacting plate 51 has a certain angle with the horizontal plane. The compacting plate 51 is fixed to the bottom end of the rotating shaft 21 through the spline 53. The top end of the rotating shaft 21 is connected to the motor 4, and a bearing 2 is installed between the rotating shaft 21 and the furnace body. When the motor 4 rotates clockwise, the compacting plate 51 has a compacting and leveling effect on the material in its compacting area to ensure that the volume in the furnace is fully utilized.

[0034] like Figure 4-1 and 4-2 As shown, the stirring mechanism 8 is mainly composed of a spline 81 and a material-moving rod 82. The material-moving rod 82 is fixed to the top of the second rotating shaft 22 through the spline 81, and the bottom end of the second rotating shaft is connected to the motor 9. Figure 4-1As shown, the material-moving rods 82 are spaced apart along the circumferential direction and the circumferential direction on the outer wall of the second spline 81, and the material-moving rods 82 of different axial heights are staggered. When the second motor 9 rotates, the stirring effect can be achieved, which not only ensures the uniformity of the pyrolysis of the raw materials, but also effectively prevents the occurrence of slagging in the furnace.

[0035] like Figure 5 As shown, the discharging mechanism 14 includes a plurality of discharging rods, which are connected to the rotating shaft 22 through a spline 3 144, are coaxially arranged with the stirring mechanism 8, and are driven by the same motor 2 9. Among them, a discharging curved surface 142 and a stirring surface 143 are arranged on the discharging rod, and the end of the discharging curved surface 142 is connected to the end of the end lever 141. When discharging, the motor 2 9 rotates clockwise, and the material is pushed by the discharging curved surface 142, and moves uniformly and acceleratedly from the center of the furnace body to the discharging port 153, ensuring that the entire material plane falls evenly, thereby ensuring the uniformity of pyrolysis. If the material does not move to the discharging port 153, the end lever 141 pushes the material to make a circular motion until the material falls from the discharging port 153.

[0036] like Figure 1 As shown, an air distribution plate 11 is installed between the discharging mechanism 14 and the stirring mechanism 8. The air distribution plate 11 is an existing structure, and the specific structural composition and working principle are not described here.

[0037] like Figure 6 The figure shows a schematic diagram of the furnace base 15 , preferably four square discharge ports 153 are evenly spaced at 90° intervals to ensure timely and stable discharge. A reinforcing rib 151 and a motor support 152 are also provided on the furnace base 15 .

[0038] The flow chart of the compaction, stirring and discharging system of the vertical pyrolysis furnace in this embodiment is as follows Figure 2 As shown, a pressure-stabilizing exhaust port 3 is provided at the top of the furnace body, and a pyrolysis gas upper outlet 6 and a pyrolysis gas upper outlet 7, an air inlet 10, an air inlet 2 12 and a pyrolysis gas reflux inlet 13 are provided on one side of the furnace body from top to bottom, and an ignition port 16 is provided at the bottom of the other side of the furnace body. At the same time, a material level meter 18 and a material level meter 2 19 are provided in the feeding area of ​​the furnace body, and a thermometer 20 for real-time monitoring of the temperature inside the furnace body is provided in the pyrolysis area of ​​the furnace body. A plurality of thermometers 20 are provided at intervals, and each thermometer 20 is connected to the signal of the motor 2 9, and each material level meter is simultaneously connected to the signal of the motor 1 4 and the motor 3 17 provided at the feeding port 1. The process of the system mainly includes three stages, namely the feeding stage, the stable combustion stage and the discharging stage, as follows:

[0039] (1) Feeding stage:

[0040] After ignition, the material level meter 18 does not detect the material, and the signal is transmitted to the motor 14 and the motor 3 17. The motor 3 17 drives the feeding device to feed the material, and the motor 14 drives the compaction mechanism 5 to rotate clockwise. When rotating clockwise, each compaction plate 51 maintains a certain angle with the ground. When the material height rises to the compaction range, the material is subjected to the downward force of the compaction plate 51, which compacts the material and has the function of leveling the surface of the material. When the material height rises further, the material level meter 2 19 transmits a signal to the motor 14 and the motor 3 17, and the feeding stops and the compaction mechanism 5 stops moving.

[0041] (2) Stable combustion stage:

[0042] When the combustion in the furnace is stable, the motor 2 9 drives the stirring mechanism 8 and the discharging mechanism 14 through the rotating shaft 2 to rotate clockwise. At this time, the discharging mechanism 14 has no discharging function, but only a stirring function. The stirring mechanism 8 and the discharging mechanism 14 form a double stirring function, which effectively prevents slagging in the furnace and ensures the uniformity of pyrolysis. All thermometers 20 monitor the temperature in the furnace in real time to adjust the speed of the motor 2 9.

[0043] (3) Discharging stage:

[0044] During discharging, the motor 29 drives the discharging mechanism 14 to rotate counterclockwise, and the material on the discharging curved surface 142 moves toward the discharging port 153 along the direction of the gyration radius. The four discharging ports are evenly distributed at the bottom of the furnace body. If the material does not move to the discharging port, the end lever 141 pushes the material to make a circular motion until the material falls from the discharging port 153. When the thermometer 20 detects that the temperature in the pyrolysis zone is high, the discharging speed of the motor 29 is automatically adjusted to speed up the discharging speed. After discharging, the motor 29 drives the discharging mechanism to rotate clockwise to stir. The pyrolysis process continues until the next discharging.

[0045] It can be seen that this embodiment has the following advantages:

[0046] 1. The discharging mechanism ensures that the material falls evenly and promotes the uniform pyrolysis process;

[0047] 2. The stirring mechanism effectively solves the slagging problem in the furnace and ensures the normal operation of the equipment;

[0048] 3. The compaction mechanism effectively prevents the loose distribution of materials in the furnace and ensures that the volume of the furnace is fully utilized.

[0049] It should be noted that it is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

[0050] The present invention uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only used to help understand the method and core ideas of the present invention. At the same time, for those skilled in the art, according to the ideas of the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A vertical pyrolysis furnace discharging stirring system, characterized in that: It includes a compacting mechanism, a stirring mechanism and a discharging mechanism which are sequentially arranged in the furnace body from top to bottom, wherein the compacting mechanism is used to compact the material, the stirring mechanism is used to stir the material in the furnace, and the discharging mechanism is used to discharge the material from the furnace body to the outside; A feed port is provided at the top of the furnace body, and the compacting mechanism is provided at one side of the feed port; the compacting mechanism comprises a compacting plate, a rotating shaft 1 and a motor 1, the top end of the rotating shaft 1 is connected to the motor 1, and a plurality of compacting plates are installed at intervals in the circumferential direction at the bottom end of the rotating shaft 1; the compacting plates are arranged at an angle with the horizontal plane, and each compacting plate is provided with a reinforcing rib; The stirring mechanism comprises a second rotating shaft, a second motor and a material-moving rod. The bottom end of the second rotating shaft is connected to the second motor, and a plurality of the material-moving rods are installed on the top end of the second rotating shaft. The material-moving rods are distributed at intervals in the circumferential direction and axial direction of the second rotating shaft, and the material-moving rods at different axial heights are distributed in a staggered manner. The discharging mechanism comprises a plurality of discharging rods circumferentially arranged on the second rotating shaft; one side of the discharging rod is a stirring surface, the other side is a discharging curved surface, and an end lever is arranged at the end of the discharging curved surface; when the second motor drives the second rotating shaft to rotate so that the stirring surface pushes the material, no material is discharged; when the second motor drives the second rotating shaft to rotate so that the discharging curved surface pushes the material, the material can be pushed to the discharging port of the furnace body and discharged; A plurality of discharge ports are evenly distributed on the circumferential direction of the base of the furnace body, and each of the discharge ports is located within the discharge range of the discharge mechanism.

2. The vertical pyrolysis furnace discharging stirring system according to claim 1, characterized in that: The furnace body is also provided with an air distribution plate, and the air distribution plate is installed on the second rotating shaft.

3. The vertical pyrolysis furnace discharging stirring system according to claim 1 is characterized in that: The top of the furnace body is provided with a pressure-stabilizing exhaust port, one side of the furnace body is provided with a pyrolysis gas upper outlet, an air inlet and a pyrolysis gas reflux inlet in sequence from top to bottom, and the bottom of the other side of the furnace body is provided with an ignition port.

4. The vertical pyrolysis furnace discharging stirring system according to claim 3 is characterized in that: The feeding area of ​​the furnace body is provided with a material level meter, and the pyrolysis area of ​​the furnace body is provided with a thermometer for real-time monitoring of the temperature inside the furnace body. The thermometer is connected to the stirring mechanism and the discharging mechanism by signal, and the material level meter is connected to the compacting mechanism and the feeding mechanism by signal.

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