Feeding device of cracking gasifier and method thereof

Abstract

The invention discloses a feeding device of a cracking gasifier and a method thereof, the feeding device comprises a box body, the box body comprises a feeding door located at the upper end, a discharging door located at the lower end, and an isolation door located in the middle between the feeding door and the discharging door; the feeding door, the isolation door and the discharging door simultaneously divide the box body into a closed upper material bin and a closed lower material bin in a closed state. The feeding device comprises the following three modes: a first mode, in which the feeding door is in an open state, and the isolation door and the discharging door are in a closed state; in the second mode, the feeding door is in a closed state, the isolation door is in an open state, and the discharging door is in a closed state; in the third mode, the feeding door and the isolation door are in a closed state, and the discharging door is in an open state. According to the feeding device, the function of continuous feeding under the sealing condition can be achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of biomass gasification equipment, and particularly relates to a feeding device of a pyrolysis gasification furnace and a method thereof. BACKGROUND

[0002] The waste incineration treatment technology can effectively complete waste reduction and partial resource utilization, but the waste incineration treatment also produces a large amount of dioxin and other various toxic pollutants, causing secondary environmental pollution. In recent years, the pyrolysis gasification method for treating household garbage has developed rapidly, which can effectively complete waste reduction and resource utilization, and greatly reduce and avoid the generation of dioxin, and has become the leading technology for garbage disposal. The pyrolysis gasification technology is to use a pyrolysis gasification furnace with a working temperature of 800-1200℃ high temperature and a closed state to heat various organic materials in household garbage in an oxygen-deficient state, so as to pyrolyze, gasify, carbonize and break the large molecular chains, and then generate small molecular compounds, and then through multi-stage purification, finally form a combustible gas mainly composed of carbon monoxide, hydrogen and methane (CO, H2, CH4).

[0003] The key of the pyrolysis gasification technology for converting household garbage into combustible gas is to require the pyrolysis gasification furnace to pyrolyze the garbage at high temperature in a sealed and air-isolated state, so that the feeding device, which is the key equipment for feeding garbage into the pyrolysis furnace, has strict requirements: while continuously feeding, the pyrolysis furnace is kept sealed and air-isolated.

[0004] In view of the actual engineering of treating household garbage or industrial organic garbage, soft and hard garbage waste is often mixed together, and there are large and small pieces, and the physical size difference is very large, so the existing feeding device cannot simultaneously meet the feeding requirements of the two types of garbage. SUMMARY

[0005] The main purpose of the present application is to provide a feeding device of a pyrolysis gasification furnace and a method thereof, so as to solve the problem that the existing pyrolysis gasification furnace cannot guarantee the sealing of the pyrolysis furnace to isolate air while continuously feeding.

[0006] According to an aspect of the present application, a feeding device of a cracking gasifier is provided, which comprises a box body, the box body comprising a feeding door at an upper end, a discharging door at a lower end, and an isolation door at a middle part between the feeding door and the discharging door; wherein the feeding door, the isolation door and the discharging door divide the box body into an upper feeding bin and a lower discharging bin in a closed state; the feeding device comprises three modes: a first mode in which the feeding door is in an open state, and the isolation door and the discharging door are in a closed state; a second mode in which the feeding door is in a closed state, the isolation door is in an open state, and the discharging door is in a closed state; and a third mode in which the feeding door and the isolation door are in a closed state, and the discharging door is in an open state.

[0007] The feeding door is a single-side push-pull structure arranged horizontally or with an opening end inclined downward.

[0008] The discharging door comprises two symmetrical flip doors, and the closed sides of the two flip doors are provided with steps that are engaged with each other.

[0009] The door shaft of the discharging door is fixed to the side wall of the box body and extends out of the outer surface of the box body, and a lever is fixed at the end of the extended door shaft, and the other end of the lever is connected with an electric hydraulic push rod.

[0010] The discharging door is a double-side push-pull structure arranged horizontally or with an opening end inclined downward.

[0011] The lower surface of the discharging door is provided with a high-temperature-resistant layer.

[0012] The isolation door is a double-side push-pull structure, one side edge of the isolation door is provided with a U-shaped sealing groove, and the other side edge of the isolation door is provided with a tenon matched with the U-shaped sealing groove.

[0013] The volume of the lower discharging bin is greater than the volume of the upper feeding bin.

[0014] The lower part of the side wall of the box body has a water jacket structure.

[0015] According to another aspect of the embodiment of the present application, there is also provided a method for feeding a cracking gasifier, comprising: providing a feeding box body, the box body comprising: a feeding door at an upper end, a discharging door at a lower end, and an isolation door at a middle part between the feeding door and the discharging door; wherein the feeding door, the isolation door and the discharging door divide the box body into an upper feeding bin and a lower feeding bin in a closed state; opening the feeding door and closing the isolation door to seal the lower feeding bin, feeding materials into the upper feeding bin through the feeding door, and closing the feeding door after feeding is completed; opening the isolation door to feed the materials in the upper feeding bin into the lower feeding bin, and closing the isolation door to seal the upper feeding bin after feeding is completed; and opening the discharging door to feed the materials into the cracking gasifier.

[0016] According to the technical solution of the present application, it can be suitable for feeding hard materials (coal blocks, wood blocks, plastic blocks, etc.), soft materials (household garbage, plastic bags, textiles, etc.), and large block materials (foamed plastic, etc.), and various forms of garbage and combustible solid waste, and can meet the needs of continuous feeding of the cracking gasifier under the premise of sealing and air isolation. The present application has a simple structure, reliable performance, short intermittent feeding, low energy consumption, and realizes the functions of sealing and continuous feeding. BRIEF DESCRIPTION OF DRAWINGS

[0017] The accompanying drawings, which are included to provide a further understanding of the present application and are incorporated in and constitute a part of this application, illustrate embodiments of the present application and together with the description serve to explain the present application. In the drawings:

[0018] Figure 1 is a schematic diagram of the overall structure of the feeding device according to an embodiment of the present application;

[0019] Figure 2 is a schematic diagram of the structure of the discharging door according to an embodiment of the present application;

[0020] Figure 3 is a schematic diagram of the structure of the discharging door according to another embodiment of the present application;

[0021] Figure 4 is a schematic diagram of the structure of the isolation door according to an embodiment of the present application;

[0022] Figure 5 is Figure 4 is a schematic diagram of the structure of the U-shaped sealing groove at the edge of the middle door;

[0023] Figure 6 is a flowchart of the feeding method of the cracking gasifier according to an embodiment of the present application. DETAILED DESCRIPTION

[0024] In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions of the present application will be described below in connection with specific embodiments of the present application and corresponding drawings. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort belong to the scope of protection of the present application.

[0025] Although the present application specification can include various different forms of embodiments, for some preferred embodiments described in detail in the specification and shown in the drawings, it should be understood that the disclosure of the present application should be regarded as a schematic description of the principles of the present application, and the shown embodiments are not intended to limit the scope of protection of the present application.

[0026] The technical solutions provided by the embodiments of the present application will be described in detail below in connection with the drawings.

[0027] There are currently two types of feeders on the market: one is a screw feeder, which uses a screw push rod to rotate and push the garbage material in the chute forward into the pyrolysis furnace. The chute is appropriately narrowed at the inlet of the furnace, and the flexible compression of the garbage material is used to close the inlet, thereby preventing air from entering the pyrolysis furnace with the material. This screw feeder can be used for soft garbage material and can meet the requirements of sealing, air isolation and continuous feeding, but the problem is that the feeding speed is slow, continuous operation is required, the power consumption is large, and hard materials such as coal blocks, wood blocks and straw in the garbage are easily jammed and stopped when they are squeezed, and the sealing effect cannot be achieved by squeezing deformation. The other is a feeder that can be used for hard materials, such as rotating feeders and coal block feeders. These feeders can be used for coal blocks, wood blocks, hard particles and homogeneous powder materials, but they cannot be used for continuous feeding of flexible materials such as household garbage, foam plastic garbage and waste textiles, and are prone to blockage, low efficiency and poor sealing effect.

[0028] In order to solve the above problems, according to the embodiments of the present application, a feeding device for a pyrolysis gasifier is provided, which is arranged at the upper end or upstream of the pyrolysis gasifier and connected with the feeding port of the pyrolysis gasifier.

[0029] Reference Figure 1 The feeding device includes a box body 1, the upper end of the box body 1 is a material inlet, and the lower end is a material outlet. The cross section of the box body 1 can be rectangular, but it can also be designed into other shapes according to actual needs, and the present application is not limited thereto. A feeding door 2 is arranged at the upper end of the box body 1, a discharging door 3 is arranged at the lower end of the box body 1, and a partition door 4 is arranged at or near the middle position of the box body 1.

[0030] With reference to the foregoing Figure 1 , the feeding door 2 can be a single-side sliding structure designed horizontally or downwardly inclined. One side of the feeding door 2 can be connected to the driving end of the power mechanism 21 through the side wall of the box body 1, and the edges of the other three sides of the feeding door 2 are provided with sealing rubber strips which can effectively seal the inlet of the box 1 when closed. The sealing rubber strips are compactly sealed by heat-resistant rubber strips to ensure reliable sealing between the edges of the feeding door and the inner wall of the box, avoiding gas overflow. The power mechanism 21 is arranged outside the box body 1 and used to drive the feeding door 2 to move along the side wall of the box body 1. In specific production, the power mechanism 21 can use a hydraulic cylinder, an air cylinder or an electric push rod to realize the translation of the feeding door 2. After the feeding door 2 is opened, the material can be conveniently fed into the upper bin, and after the feeding door 2 is closed, the material in the upper bin can be discharged into the lower bin.

[0031] The discharging door 3 is arranged at the lower end of the box body 1 and directly connected to the feeding port of the cracking gasifier. According to the embodiments of the present application, the discharging door 3 can be realized in various ways, which are described in detail below.

[0032] With reference to the foregoing Figure 2 In some embodiments of the present application, the discharging door 3 includes two symmetrically arranged flip doors 31, and the opposite closing sides of the two flip doors 31 are provided with steps 32 capable of being engaged with each other. In practice, the protruding part of the upper and lower matched steps 32 can extend 5 cm, which can increase the sealing cooperation surface when the discharging door is closed. The power mechanism 33 has two and is symmetrically fixed on the box body 1 and the lever of the discharging door shaft, and is used to drive the flip doors 31 to flip up and down. The power mechanism 33 can be designed as an electric hydraulic push rod, the driving end of which is connected to the lever of the flip door 31, and the opening and closing of the two flip doors are driven by the extension and retraction of the two electric hydraulic push rods. The flip doors are opened when flipped downward and closed when flipped upward to the position, and can effectively seal the lower inlet of the feeder box when closed. The opening angle of the two flip doors can also be controlled by the controller, and the material can be slid along the inclined flip door and discharged to different positions as needed, which can increase the material discharge area and realize uniform material distribution. The lower surfaces of the flip doors 31 are provided with a high-temperature-resistant layer 34, and the high-temperature-resistant material at the bottom of the flip door faces the inside of the cracking gasifier, which can be suitable for high-temperature environment and can block and reduce the influence of high temperature in the furnace on the feeder.

[0033] With reference to the foregoing Figure 3In some embodiments of the present application, the door shaft 35 of the discharge door 3 is fixedly connected to the side wall of the box body 1 by bearings, the door shaft 35 is appropriately lengthened outside the box, a push rod 36 is welded to the end of the lengthened door shaft 35, and the push rod 36 is fixedly perpendicular to the door shaft 35. The other end of the push rod is connected to the electric hydraulic push rod through a movable joint. When the electric hydraulic push rod extends and retracts, the door shaft and the turnover door are driven to complete the turnover movement. In this embodiment, the power mechanism 33 can be a hydraulic cylinder, an air cylinder or an electric push rod to realize the turnover of the discharge door.

[0034] In addition, the discharge door 3 can also be horizontally or downwardly inclined at the opening end, and the power mechanism is arranged on both sides of the box body to drive the discharge door to move through the side wall of the box body.

[0035] Since the discharge door directly faces the furnace body, in order to improve the high-temperature resistance of the discharge door, the lower surface of the discharge door 3 is provided with a high-temperature resistant layer 34, which can be suitable for a high-temperature environment and block and reduce the influence of the high temperature in the furnace on the feeder. At the same time, a fire-resistant sealing strip is also arranged at the edge of the other three sides of the discharge door 3 for sealing cooperation with the inner wall of the box body 1. The high-temperature resistant layer is made of inorganic high-temperature resistant material.

[0036] With reference to Figure 1 At the middle position or near the middle position between the feeding door 2 and the discharge door 3, an isolation door 4 is arranged, which divides the box body 1 into two parts, and the feeding door 2 and the isolation door 4 form an upper feeding bin 11, and the isolation door 4 and the discharge door 3 form a lower feeding bin 12. When the feeding door 2, the isolation door 4 and the discharge door 3 are simultaneously in the closed state, the box body 1 is divided into airtight upper feeding bin 11 and lower feeding bin 12. The volume of the lower feeding bin 12 is greater than that of the upper feeding bin 11, so as to avoid abnormal accumulation of materials in the lower feeding bin 12, which may cause the local height to be higher than the horizontal of the middle sliding door, thereby possibly affecting the sealing effect of the closing of the middle isolation door.

[0037] With reference to Figure 4 The isolation door 4 can be a double-leaf sliding door structure, both side doors 41 of the isolation door 4 are horizontally arranged in parallel, corresponding tracks matched with the movement of the side doors 41 are arranged on the opposite side walls of the box body 1, and a power mechanism 43 is arranged outside the box body 1 to drive the two side doors 41 to move horizontally relative to each other. The power mechanism 43 can be a hydraulic cylinder, an air cylinder or an electric push rod to realize the opening and closing of the double-leaf door.

[0038] With reference to Figure 5 The isolation door 4 has a mortise and tenon structure 45, one side door 41 has a U-shaped sealing groove 46 at the edge, and the other side door 41 has a tenon 47 capable of being inserted into the U-shaped sealing groove 46. The structure can ensure the sealing performance of the double-leaf door after being closed. When the isolation door 4 is closed, the upper feeding bin 11 and the lower feeding bin 12 in the box body can be sealed and isolated.

[0039] It should be noted that the power mechanism 21, the power mechanism 33 and the power mechanism 43 are connected with the controller, and are used for controlling the start-stop sequence of the power mechanism 21, 33 and 43. In the actual production, the top of the box body 1 is provided with a feeding hopper 6, which facilitates feeding into the box body. When the upper, middle and lower doors are simultaneously in the closed state, the feeder forms two sealed bin bodies of the upper bin and the lower bin.

[0040] In addition, the top of the box body 1 is also provided with a feeding hopper 6, which facilitates feeding into the box body.

[0041] According to the embodiment of the present application, the lower part of the side wall of the box body 1 is a double-layer structure, and the two layers have cooling water, that is, the lower part of the side wall of the box body 1 has a water jacket structure. The water jacket structure has a cooling function, and the heat emitted around the lower part of the box body is absorbed by the circulating water, thereby preventing the temperature of the lower part of the box body from being too high when the feeding device is working, ensuring that the box body and the door shaft rotating structure are not deformed, and making the feeding device more stable and safe to complete the feeding work. At the same time, the bottom of the door is provided with a heat preservation layer to reduce the thermal deformation of the turnover door plate. This structure greatly reduces the deformation influence of temperature on the feeder, ensures that the feeder can still operate normally and stably in a high-temperature environment and maintain a sealed state. In addition, the heat absorbed by the circulating water can form water vapor, which can be used for production, completing waste heat utilization.

[0042] Reference Figure 6 According to the embodiment of the present application, a feeding method of a cracking gasifier is also provided, which comprises:

[0043] S602, a feeding box body is provided, which comprises: a feeding door at the upper end, a discharging door at the lower end, and an isolation door at the middle between the feeding door and the discharging door; wherein when the feeding door, the isolation door and the discharging door are simultaneously in the closed state, the box body is divided into airtight upper bin and lower bin.

[0044] That is, the cracking gasifier comprises three doors from top to bottom, which are: a feeding door, an isolation door and a discharging door, and the three doors divide the box body into an upper bin and a lower bin.

[0045] S604, the feeding door is opened and the isolation door is closed to seal the lower bin, so that the material enters the upper bin through the feeding door, and the feeding door is closed after the feeding is completed.

[0046] In the first mode, the upper bin is opened and the lower bin is closed,

[0047] S606, the isolation door is opened, so that the material in the upper bin enters the lower bin, and the isolation door is closed to seal the upper bin after the feeding is completed;

[0048] S608, opening the discharge door to make the material enter the cracking gasifier.

[0049] The working process of the present application is as follows:

[0050] The controller sends an opening instruction to the power mechanism 21 to drive the feeding door 2 to open, and sends a closing instruction to the power mechanism 43 and the power mechanism 33 to drive the isolation door 4 and the discharge door 3 to close, so that the material can be fed into the upper hopper 11 through the feeding hopper 6;

[0051] After the upper hopper 11 is filled with material, the controller sends a closing instruction to the power mechanism 21 to close the feeding door 2, and then sends an opening instruction to the power mechanism 43 to open the isolation door 4 to make the material in the upper hopper 11 fall into the lower hopper 12;

[0052] After the material falls into the lower hopper 12, the controller sends a closing instruction to the power mechanism 43 to close the middle isolation door 4, and then sends an opening instruction to the power mechanism 33 to open the discharge door 3 to complete the feeding into the furnace body.

[0053] As can be seen from the above, during feeding, the isolation doors 4 on both sides of the middle part of the box body 1 and the discharge door 3 at the bottom are completely closed to form a seal, and air cannot enter the cracking gasification furnace, then the top feeding door 2 is opened to put the garbage material into the upper hopper 11. The top feeding door 2 is closed, and the upper hopper 11 is in a sealed state, and the openings at the upper and lower ends of the box body 1 are also in a closed state. Then the middle isolation door 4 is opened, and the garbage material enters the lower hopper 12 under the action of gravity, and the middle isolation door 4 is closed. At this time, the upper and lower hoppers are both in a sealed state, the upper opening of the upper hopper 11 can continue to feed, and the lower opening of the lower hopper 12 can feed into the furnace, thereby realizing the functions of sealing, preventing air from entering the furnace, and continuous feeding.

[0054] During discharging, the bottom discharge door 3 is opened, and after the material enters the cracking gasification furnace under the action of gravity, the discharge door 3 is closed, and the lower hopper 12 is resealed. During the discharging process, the controller controls the opening and closing sequence and state of the two discharge doors 3 to change the distribution amount of the material in the furnace: when both discharge doors 3 are opened, the garbage material falls directly below the feeder; but when only the left discharge door 3 is opened, the material is distributed to the left under the action of gravity and inertia, and the amount of material distributed to the left is obviously more than 50% of the total amount of material. Similarly, when only the right discharge door 3 is opened, the material is distributed to the right, and the amount of material distributed to the right is obviously more than 50% of the total amount of material. When the discharge doors 3 are all opened, the material all enters the cracking gasification furnace; when only part of the discharge doors 3 is opened, only part of the material can enter the cracking gasification furnace.

[0055] The feeding door 2 on the upper opening of the feeder box can effectively seal the box inlet when closed, and the isolation doors 4 symmetrically arranged on both sides of the middle part of the box 1 can effectively seal the lower middle part of the box when closed and the upper feeding door is opened. The discharge door at the bottom of the feeder box can effectively seal the lower opening of the box when closed. Through the mutual cooperation of the opening and closing of the upper, middle and lower three doors in the box, the continuous feeding function under the sealed condition can be reliably realized. Since the opening and closing of each door is completed in a few seconds, no continuous power is required, and therefore the comprehensive energy consumption for completing the same amount of feeding is far lower than that of the screw feeder which needs to run continuously, and the energy saving effect is obvious. The bottom surface of the discharge door is made of high-temperature-resistant material to form a high-temperature-resistant layer, which can block the influence of high temperature in the furnace on the feeder. The differences between the present application and the existing feeders are shown in the following table:

[0056]

[0057] The present application is designed scientifically and reasonably, has a simple structure, stable performance and low energy consumption, and can be applied to various forms and sizes of hard and soft waste and combustible solid waste under the premise of sealing and air isolation, thereby meeting the continuous feeding under the premise of sealing and air isolation, and providing a matching equipment with low cost, reliable performance and obvious energy saving for the application of the new technology of treating household garbage by a cracking gasification device. The specific advantages are as follows:

[0058] 1. The feeding function of different hard and soft waste materials can be met.

[0059] 2. The feeding requirement of large-volume materials can be met.

[0060] For example, waste packaging foam blocks, waste plastic nets and large sponge blocks, if broken into small pieces, the cost will be significantly increased and the cost will not be worth the loss. The characteristics of these materials are that they immediately shrink when heated, and the whole piece immediately shrinks in volume when entering the cracking gasification furnace, and the volume is reduced to a negligible level in a short time, so the present application can completely send these materials into the cracking gasification furnace, and utilize the heat in the furnace to rapidly and effectively treat this kind of waste without the need of crushing, which can greatly reduce the energy consumption and logistics operation cost required for crushing.

[0061] 3. The materials are fed by gravity, the feeder is installed on the top of the furnace body, and the materials naturally fall into the furnace by gravity when the lower opening of the discharge door is opened, so that the feeding speed is fast and no other power is needed to push the materials. At the same time, the sealing of the discharge door of the feeder is reliable after being closed, the power consumption for completing the same amount of feeding is greatly reduced, and the energy saving is obvious.

[0062] 4. The feeding area is increased, and the materials can be sent to different positions by opening the bottom turning discharge door, so that the area of the materials entering the furnace is increased, which is beneficial to the uniform distribution of materials in the furnace.

[0063] 5. The seal is reliable, the feeder realizes the seal through the door structure of each part, the opening and closing of the door is completed by the equipment controller, the degree of automation is enough, and it is stable and reliable; it does not need to rely on material extrusion seal (extrusion seal may cause instability due to different materials), and the sealing performance is good.

[0064] Although the present disclosure has been described in detail with reference to particular embodiments, those skilled in the art will understand that various changes and modifications can be made without departing from the spirit and scope of the embodiments. Therefore, the present application is intended to cover any modifications and variations, any equivalents, and any improvements that are within the spirit and principles of the present application, which are to be included within the scope of the claims and the equivalents thereof.

[0065] Furthermore, features disclosed in the above description or claims or drawings, or otherwise taught by the foregoing description or drawings, may be combined in any combination, and are not limited to the combinations explicitly stated herein, provided such combinations do not produce contradictory or inconsistent technical effects. Specifically, one or more features of any one of the embodiments described herein may be combined with one or more features of any other embodiment described herein.

[0066] Any feature disclosed as part of a particular aspect, embodiment or claim that is disclosed in conjunction with one or more other features shall be understood as being also disclosed as an embodiment or claim that does not depend on those other features.

Claims

1. A feeding device for a pyrolysis gasification furnace, characterized in that, include: The main body of the container includes: a feeding door at the upper end, a discharging door at the lower end, and an isolation door in the middle between the feeding door and the discharging door; wherein, when the feeding door, the isolation door and the discharging door are all closed, the main body of the container is divided into a sealed feeding bin and a discharging bin; The feeding device includes the following three modes: In the first mode, the feed door is in the open state, and the isolation door and the discharge door are in the closed state; In the second mode, the feed door is in the closed state, the isolation door is in the open state, and the discharge door is in the closed state; In the third mode, the feed door and the isolation door are in the closed state, and the discharge door is in the open state.

2. The apparatus according to claim 1, characterized in that, The feed gate is a single-sided push-pull structure that is horizontal or has its opening end tilted downwards.

3. The apparatus according to claim 1, characterized in that, The unloading gate includes two symmetrically arranged tilting doors, and the closed sides of the two tilting doors are provided with interlocking steps.

4. The apparatus according to claim 1, characterized in that, The door hinge of the unloading door is fixed to the side wall of the main body of the box and extends out of the outer surface of the main body of the box. A lever is fixed at the end of the extended door hinge, and the other end of the lever is connected to an electric hydraulic push rod.

5. The apparatus according to claim 1, characterized in that, The unloading gate is a double-sided push-pull structure with a horizontal or downward-sloping opening.

6. The apparatus according to claim 3, 4, or 5, characterized in that, The lower surface of the unloading gate is provided with a high-temperature resistant layer.

7. The apparatus according to claim 1, characterized in that, The isolation door has a double-sided sliding structure. One side of the isolation door has a U-shaped sealing groove, and the other side of the isolation door has a tenon that matches the U-shaped sealing groove.

8. The apparatus according to claim 1, characterized in that, The volume of the unloading hopper is greater than the volume of the loading hopper.

9. The apparatus according to claim 1, characterized in that, The lower part of the side wall of the main body of the box has a water jacket structure.

10. A feeding method for a pyrolysis gasification furnace, characterized in that, include: A feeding box body is provided, the feeding box body including: a feeding door at the upper end, a discharging door at the lower end, and an isolation door in the middle between the feeding door and the discharging door; wherein, when the feeding door, the isolation door and the discharging door are all closed, the feeding box body is divided into a sealed feeding bin and a discharging bin; Open the feed door and close the isolation door to seal the discharge hopper, allowing the material to enter the feed hopper through the feed door. After feeding is complete, close the feed door. Open the isolation door to allow the material in the feeding hopper to enter the unloading hopper. After feeding is complete, close the isolation door to seal the feeding hopper. Open the discharge gate to allow the material to enter the pyrolysis gasification furnace.

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