Double-arched platform retort

Abstract

This utility model discloses a double-arch platform dry distillation furnace, belonging to the technical field of dry distillation furnaces. It includes a furnace body, with a dry distillation section and a gasification section inside the furnace body. A mixing chamber is located inside the furnace body between the dry distillation section and the gasification section. An existing arch platform is located on the inner side of the mixing chamber. A newly added arch platform is located at the lower part of the inner cavity of the dry distillation section. The newly added arch platform includes three arch platform legs fixedly connected to the inner wall of the dry distillation section, and arch platform tips are fixedly connected to the ends of the three arch platform legs. In this utility model, by adding an arch platform, the descent speed of oil shale can be further slowed down, allowing the oil shale to undergo more complete and uniform dry distillation within the dry distillation section, thus improving the dry distillation effect and enabling a more complete release of volatiles from the oil shale.

Description

Technical Field

[0001] This utility model relates to the field of dry distillation furnace technology, and more specifically, to a double-arch dry distillation furnace. Background Technology

[0002] In existing shale retort technology, a single arch platform is typically installed, serving as the boundary between the retort and generating sections. This stabilizes the fire layer in the generating section and prevents it from spreading into the retort. Its function is to distribute shale semi-coke; the retorted shale semi-coke falls into the generating section through the three legs of the arch platform, ensuring uniform mixing. The space beneath the arch platform allows for gas concentration in the generating section, facilitating gas introduction into the mixing chamber. It also slows the descent speed of the shale in the furnace center, stabilizing the fire layer. However, in actual production, a single arch platform often has limited effectiveness in separating the retort and generating sections and in distributing shale. During production fluctuations, issues such as operational problems and shale distribution can cause chain reactions at the arch platform, significantly impacting the efficiency of shale retort. With increasing energy demand and higher requirements for energy efficiency and safety, existing single-arch retort furnaces are no longer sufficient to meet actual production needs. Therefore, we propose a double-arch retort furnace. Utility Model Content

[0003] In view of the problems mentioned in the background art above, the purpose of this utility model is to provide a double-arch platform dry distillation furnace.

[0004] To solve the above problems, the present invention adopts the following technical solution: a double-arch dry distillation furnace, comprising a furnace body, a dry distillation section and a gasification section inside the furnace body, a mixing chamber inside the furnace body and located between the dry distillation section and the gasification section, an existing arch platform inside the mixing chamber, and a newly added arch platform at the lower part of the inner cavity of the dry distillation section, the newly added arch platform comprising three arch platform legs fixedly connected to the inner wall of the dry distillation section, and arch platform tips fixedly connected to the ends of the three arch platform legs.

[0005] As a preferred embodiment of this utility model, an ash dish is provided at the bottom of the furnace body, an ash discharge device is provided on the ash dish, and an air blower is provided at the bottom of the furnace body.

[0006] As a preferred embodiment of this utility model, a gas collection umbrella is provided on the top of the furnace body, and a feeding hopper is provided on the top of the furnace body.

[0007] As a preferred embodiment of this utility model, an air inlet is provided on the side of the furnace body, and the end of the air inlet is connected to the mixing chamber.

[0008] As a preferred embodiment of this utility model, the distance between the newly added arch platform and the original arch platform is 1.8 meters.

[0009] As a preferred embodiment of this utility model, the arch legs and arch tips are made of refractory bricks.

[0010] The advantages of this utility model are: (1) In this utility model, by adding an arch platform, the descent speed of oil shale can be further slowed down, so that oil shale can be more fully and evenly dried in the dry distillation section, which helps to improve the dry distillation effect and allows the volatiles in oil shale to be released more fully, which is practical.

[0011] (2) In this utility model, the addition of an arch platform helps to optimize the gas flow in the furnace. The design of the arch platform can create a certain suspension in the upper part of the gasification section, which helps to reduce the resistance of gas flow and make the gas more likely to converge in the center of the furnace, thereby increasing the temperature in the center of the furnace. At the same time, the arch platform can also promote the mixing of gases in the furnace, so that the fuel can be ignited and burned in time, further improving the combustion efficiency and heat utilization rate.

[0012] (3) In this utility model, the addition of the arch platform also helps to improve the safety and stability of the dry distillation furnace. By rationally designing the structure and position of the arch platform, the temperature and pressure distribution in the furnace can be better controlled, preventing safety accidents caused by excessive temperature or pressure. At the same time, the presence of the arch platform can also enhance the overall structural strength of the furnace and improve the service life and stability of the dry distillation furnace. Attached Figure Description

[0013] Figure 1 is a schematic cross-sectional view of the present invention.

[0014] Figure 2 is a cross-sectional schematic diagram of the mixing chamber of this utility model.

[0015] Figure 3 is a top view of the newly added arch platform in this utility model.

[0016] The following are the labels in the diagram: 1. Furnace body; 2. Dry distillation section; 3. Gasification section; 4. Mixing chamber; 5. Existing arch platform; 6. Newly added arch platform; 7. Arch platform leg; 8. Arch platform tip; 9. Air inlet; 10. Gas collection umbrella; 11. Feed hopper; 12. Ash dish; 13. Ash discharge device; 14. Tube head. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example 1

[0020] Please refer to Figures 1-3. A double-arched retort furnace includes a furnace body 1, a retort section 2 and a gasification section 3 inside the furnace body 1, and a mixing chamber 4 inside the furnace body 1 and located between the retort section 2 and the gasification section 3. An existing arch 5 is provided on the inner side of the mixing chamber 4, and a new arch 6 is provided at the lower part of the inner cavity of the retort section 2. The new arch 6 includes three arch legs 7 fixedly connected to the inner wall of the retort section 2, and arch tips 8 are fixedly connected to the ends of the three arch legs 7.

[0021] Specifically, please refer to Figure 1. An ash dish 12 is provided at the bottom of the furnace body 1, an ash discharge device 13 is provided on the ash dish 12, and an air blower 14 is provided at the bottom of the furnace body 1.

[0022] In this embodiment, the ash dish 12 is used to catch the ash residue, and the ash residue is discharged using the ash discharge device 13.

[0023] Specifically, please refer to Figure 1. A gas collection umbrella 10 is provided on the top of the furnace body 1, and a feeding hopper 11 is provided on the top of the furnace body 1.

[0024] In this embodiment, oil shale is added to the furnace body 1 through the feeding hopper 11, and oil and gas are discharged through the feeding hopper 11.

[0025] Specifically, please refer to Figure 1. An air inlet 9 is provided on the side of the furnace body 1, and the end of the air inlet 9 is connected to the mixing chamber 4.

[0026] In this embodiment, the external hot circulating air is introduced into the mixing chamber 4 through the air inlet 9.

[0027] Specifically, please refer to Figure 1. The distance between the newly added arch platform 6 and the original arch platform 5 is 1.8 meters.

[0028] Specifically, please refer to Figures 2 and 3. The arch legs 7 and the arch tip 8 are made of firebricks.

[0029] In this embodiment, the masonry method of the arch platform leg 7 and the arch platform tip 8 is the same as that of the original arch platform 5.

[0030] Working principle: By adding a new arch 6 structure above and near the existing arch 5 inside the furnace body 1, the carbonization effect can be improved, gas flow optimized, combustion efficiency and heat utilization rate increased, and safety and stability enhanced. The functions of the new arch are as follows: Firstly, the newly added arch platform 6 provides support for the oil shale in the dry distillation section 2. By adding an arch platform, the descent speed of the oil shale can be further slowed down, allowing the oil shale to undergo more thorough and uniform dry distillation in the dry distillation section. This helps to improve the dry distillation effect and allows the volatiles in the oil shale to be released more fully. Secondly, the addition of an arch platform helps optimize the gas flow in the furnace. The design of the arch platform can create a certain suspension in the upper part of the gasification section 3, which helps reduce the resistance of gas flow and makes it easier for the gas to converge in the center of the furnace, thereby increasing the temperature in the center of the furnace. At the same time, the arch platform can also promote the mixing of gases in the furnace, enabling the fuel to ignite and burn in time, further improving combustion efficiency and heat utilization. In addition, adding arches can help improve the safety and stability of the distillation furnace. By rationally designing the structure and position of the arches, the temperature and pressure distribution inside the furnace can be better controlled, preventing safety accidents caused by excessive temperature or pressure. At the same time, the presence of arches can also enhance the overall structural strength of the furnace and improve the service life and stability of the distillation furnace.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A double-arched platform retort comprising a furnace body (1), characterized in that: The furnace body (1) is provided with a dry distillation section (2) and a gasification section (3). A mixing chamber (4) is provided inside the furnace body (1) and between the dry distillation section (2) and the gasification section (3). An original arch (5) is provided on the inner side of the mixing chamber (4). A new arch (6) is provided at the lower part of the inner cavity of the dry distillation section (2). The new arch (6) includes three arch legs (7) fixedly connected to the inner wall of the dry distillation section (2). An arch tip (8) is fixedly connected to the end of the three arch legs (7).

2. A double-arched platform retort according to claim 1, characterized in that: The bottom of the furnace body (1) is provided with an ash dish (12), the ash dish (12) is provided with an ash discharge device (13), and the bottom of the furnace body (1) is provided with a blower (14).

3. A double arch platform retort as claimed in claim 1, wherein: The top of the furnace body (1) is provided with a gas collection umbrella (10) and a feeding hopper (11).

4. A double arch platform retort as claimed in claim 1, wherein: The furnace body (1) is provided with an air inlet (9) on its side, and the end of the air inlet (9) is connected to the mixing chamber (4).

5. A double arch platform retort as claimed in claim 1, wherein: The distance between the newly added arch platform (6) and the original arch platform (5) is 1.8 meters.

6. A double arch platform retort as claimed in claim 1, wherein: The arch legs (7) and arch tips (8) are made of firebricks.

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