Novel gas channel of mixing chamber of gas retort
By setting multiple spray holes on the top of the mixing chamber of the dry distillation furnace and setting multiple circular holes on the bottom of the inner cavity, the problem of insufficient gas injection speed is solved, and the uniform distribution of hot gas and the improvement of dry distillation efficiency is achieved.
Patent Information
- Application Number
- CN202421216506.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-30
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-05-30
AI Technical Summary
The gas jet velocity in the mixing chamber of the existing dry distillation furnace is insufficient, resulting in uneven distribution of the gas heat carrier, affecting the uniformity of the isotherm of the fire layer of the dry distillation furnace, and thus affecting the dry distillation efficiency and oil production efficiency.
A new type of gas channel for mixing chamber of a dry distillation furnace is designed. By setting multiple spray holes on the top of the mixing chamber and gradually increasing the inner diameter of the spray holes to improve the gas jet speed and uniformity. At the same time, multiple circular holes are provided at the bottom of the mixing chamber so that the gas is connected to the inner cavity of the generation section, ensuring uniform mixing of gas.
The uniform distribution of hot gas is achieved, the heat source stability of shale in various places of the dry distillation furnace is improved, the dry distillation efficiency and oil production efficiency are improved, and the gas eye blockage in the mixing chamber is reduced, and the operating time of the dry distillation furnace is extended.
Smart Images
Figure CN222613252U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of dry distillation equipment, and more specifically, to a novel gas channel of a mixing chamber of a dry distillation furnace. Background Art
[0002] The retort furnace is an important part of the retort system. The mixing chamber inside the retort furnace is the key to ensure the stable operation of the retort furnace. The mixing chamber has the following functions: Gas mixing: Let the hot cycle gas enter the mixing chamber and mix evenly with the gas from the gasification section before entering the retort section. Dust reduction: The gasified gas from the gasification section carries a lot of dust. After entering the mixing chamber, the flow rate is reduced, which can play a certain role in dust reduction. Therefore, the mixing chamber will be blocked and needs to be cleaned regularly. The large area of the mixing chamber is for dust reduction. Eliminate some excess oxygen: In the mixing chamber, the hot cycle gas reacts with the excess oxygen in the gas from the gasification section, thereby avoiding excess oxygen from rising to the retort section to burn oil to a certain extent.
[0003] The mixing chamber is an annular space built of refractory bricks, with 18 gas injection holes distributed along the upper part of the circumference and 6 large circular holes distributed at the bottom of the circumference. After the gasification section gas and the heat cycle gas are mixed here, they are sprayed into the retort section through the 18 gas injection holes. The flow rate at the injection hole is generally 20m / s. If the gas injection speed is too low, the gas heat carrier in the furnace will be unevenly distributed, that is, more on the side walls and less in the center, causing the isotherm of the retort furnace fire layer to deviate. For this reason, we proposed a new gas channel for the mixing chamber of the retort furnace. Utility Model Content
[0004] In view of the problems mentioned in the above background technology, the purpose of the present utility model is to provide a new gas channel for the mixing chamber of a retorting furnace.
[0005] In order to solve the above problems, the utility model adopts the following technical solutions:
[0006] A novel gas channel for a mixing chamber of a retorting furnace comprises a furnace body, a generating section is arranged at the lower part of the furnace body, a retorting section is arranged at the upper part of the furnace body, a mixing chamber is arranged at the middle part of the furnace body, a hot gas inlet is arranged at the side of the furnace body, a scraping mechanism is arranged in the inner cavity of the mixing chamber, a closing mechanism is arranged on the outer side of the furnace body, a first spray hole is arranged at the top of the inner cavity of the mixing chamber and close to the hot gas inlet, a second spray hole, a third spray hole, a fourth spray hole, a fifth spray hole, a sixth spray hole, a seventh spray hole, an eighth spray hole, and a ninth spray hole are arranged at the top of the mixing chamber and on both sides of the first spray hole, a tenth spray hole is arranged at the top of the mixing chamber and away from the hot gas inlet, and a plurality of circular holes are arranged at the bottom of the mixing chamber, and the bottom ends of the plurality of circular holes are connected to the inner cavity of the generating section.
[0007] As a preferred solution of the utility model, the scraping mechanism includes a support ring sleeved in the inner cavity of the mixing chamber, a scraper is fixedly sleeved on the side of the support ring, the end face of the scraper is in contact with the inner wall of the mixing chamber, and a plurality of support columns are fixedly connected to the bottom surface of the support ring, and the bottom surfaces of the plurality of support columns and the bottom surface of the scraper are in contact with the bottom surface of the inner cavity of the mixing chamber.
[0008] As a preferred solution of the utility model, the closing mechanism includes a cleaning trough opened on the outside of the furnace body, the end of the cleaning trough is connected to the inner cavity of the mixing chamber, the inner cavity of the cleaning trough is sleeved with a closing brick plate, the outside of the furnace body is opened with a threaded hole, the outer side of the closing brick plate is sleeved with a bolt, and the end of the bolt is threadedly installed to the inner cavity of the threaded hole.
[0009] As a preferred solution of the utility model, the plurality of circular holes are evenly arranged in a circle with the central axis of the furnace body as a circle.
[0010] As a preferred embodiment of the present invention, the first spray hole, the second spray hole, the third spray hole, the fourth spray hole, the fifth spray hole, the sixth spray hole, the seventh spray hole, the eighth spray hole, the ninth spray hole and the tenth spray hole are evenly arranged in a circle with the central axis of the furnace body as a circle, and the inner diameters of the first spray hole, the second spray hole, the third spray hole, the fourth spray hole, the fifth spray hole, the sixth spray hole, the seventh spray hole, the eighth spray hole, the ninth spray hole and the tenth spray hole gradually increase.
[0011] As a preferred solution of the utility model, the inner wall of the cleaning trough is in contact with the side surface of the closed brick plate.
[0012] The advantages of the utility model are:
[0013] (1) In the utility model, the mixing state of the generating section gas and the circulating gas in the mixing chamber is improved, the hot gas is evenly distributed, a stable heat source is provided for the shale in each part of the retort furnace, the shale is retorted more fully, the operation state of the retort furnace is improved, and the oil recovery efficiency is improved; the blockage of the gas eye in the mixing chamber is reduced, and the operation time of the retort furnace is extended.
[0014] (2) In the utility model, the closed brick plate can rotate the support ring, and the rotating support ring is used to drive the scraper to rotate in the mixing chamber. The scraper is used to scrape the dust on the inner wall of the mixing chamber, and the mixing chamber is used to push the dust to the cleaning trough, and the dust is taken out through the cleaning trough, thereby realizing the function of cleaning the dust in the mixing chamber and improving the practicality of the gas channel of the mixing chamber of the new retorting furnace. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a cross-sectional schematic diagram of the mixing chamber of the utility model;
[0016] Figure 2This is a schematic diagram of the distribution of the first spray hole of the utility model;
[0017] Figure 3 This is a schematic diagram of the structure of the scraping mechanism of the utility model;
[0018] Figure 4 For this utility model Figure 1 A is an enlarged schematic diagram.
[0019] Description of the numbers in the figure:
[0020] 1. Furnace body; 2. Generating section; 3. Drying section; 4. Mixing chamber; 5. Hot gas inlet; 6. Scraping mechanism; 7. Closing mechanism; 8. First spray hole; 9. Second spray hole; 10. Third spray hole; 11. Fourth spray hole; 12. Fifth spray hole; 13. Sixth spray hole; 14. Seventh spray hole; 15. Eighth spray hole; 16. Ninth spray hole; 17. Tenth spray hole; 18. Round hole; 19. Support ring; 20. Scraper; 21. Support column; 22. Ash cleaning trough; 23. Closing brick plate; 24. Threaded hole; 25. Bolt. DETAILED DESCRIPTION
[0021] The following will clearly and completely describe the technical solutions in the embodiments of the utility model in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0023] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0024] Example:
[0025] See also Figure 1-4 A novel gas channel for a mixing chamber of a retorting furnace comprises a furnace body 1, a generating section 2 is arranged at the lower part of the furnace body 1, a retorting section 3 is arranged at the upper part of the furnace body 1, a mixing chamber 4 is arranged at the middle part of the furnace body 1, a hot gas inlet 5 is arranged at the side of the furnace body 1, a scraping mechanism 6 is arranged in the inner cavity of the mixing chamber 4, a closing mechanism 7 is arranged on the outer side of the furnace body 1, a first spray hole 8 is arranged at the top of the inner cavity of the mixing chamber 4 and close to the hot gas inlet 5, a second spray hole 9, a third spray hole 10, a fourth spray hole 11, a fifth spray hole 12, a sixth spray hole 13, a seventh spray hole 14, an eighth spray hole 15, and a ninth spray hole 16 are arranged at the top of the mixing chamber 4 and located on both sides of the first spray hole 8, a tenth spray hole 17 is arranged at the top of the mixing chamber 4 and away from the hot gas inlet 5, a plurality of circular holes 18 are arranged at the bottom of the mixing chamber 4, and the bottom ends of the plurality of circular holes 18 are connected to the inner cavity of the generating section 2.
[0026] For details, please refer to Figure 1 and Figure 3 The scraper mechanism 6 includes a support ring 19 sleeved in the inner cavity of the mixing chamber 4, a scraper 20 is fixedly sleeved on the side of the support ring 19, the end surface of the scraper 20 is in contact with the inner wall of the mixing chamber 4, and a plurality of support columns 21 are fixedly connected to the bottom surface of the support ring 19, and the bottom surfaces of the plurality of support columns 21 and the bottom surface of the scraper 20 are in contact with the bottom surface of the inner cavity of the mixing chamber 4.
[0027] In this embodiment, the support column 21 is used to support the support ring 19, and the scraper 20 is used to scrape the inner wall of the mixing chamber 4, so as to clean off the dust attached to the inner wall of the mixing chamber 4.
[0028] For details, please refer to Figure 1 and Figure 4 The closing mechanism 7 includes a cleaning groove 22 opened on the outside of the furnace body 1, the end of the cleaning groove 22 is connected to the inner cavity of the mixing chamber 4, the inner cavity of the cleaning groove 22 is sleeved with a closing brick plate 23, and a threaded hole 24 is opened on the outside of the furnace body 1. The outer side of the closing brick plate 23 is sleeved with a bolt 25, and the end of the bolt 25 is threadedly installed to the inner cavity of the threaded hole 24.
[0029] In this embodiment, the closed brick plate 23 is installed in the dust cleaning groove 22 through the cooperation between the bolts 25 and the threaded holes 24.
[0030] For details, please refer to Figure 1 The plurality of circular holes 18 are evenly arranged in a circle with the central axis of the furnace body 1 as a circle.
[0031] In this embodiment, it is ensured that the gasification section gas in the generation section 2 enters the mixing chamber 4 evenly.
[0032] For details, please refer to Figure 1 and Figure 2 The first spray hole 8, the second spray hole 9, the third spray hole 10, the fourth spray hole 11, the fifth spray hole 12, the sixth spray hole 13, the seventh spray hole 14, the eighth spray hole 15, the ninth spray hole 16 and the tenth spray hole 17 are evenly arranged in a circle with the central axis of the furnace body 1 as a circle, and the inner diameters of the first spray hole 8, the second spray hole 9, the third spray hole 10, the fourth spray hole 11, the fifth spray hole 12, the sixth spray hole 13, the seventh spray hole 14, the eighth spray hole 15, the ninth spray hole 16 and the tenth spray hole 17 gradually increase.
[0033] In this embodiment, the inner diameter of the first spray hole 8 may be 197X37mm, the second spray hole 9 may be 207X37mm, the third spray hole 10 may be 217X37mm, the fourth spray hole 11 may be 227X37mm, the fifth spray hole 12 may be 237X37mm, the sixth spray hole 13 may be 247X37mm, the seventh spray hole 14 may be 257X37mm, the eighth spray hole 15 may be 267X37mm, the ninth spray hole 16 may be 277X37mm, and the tenth spray hole 17 may be 287X37mm.
[0034] For details, please refer to Figure 4 The inner wall of the cleaning trough 22 and the side surface of the closed brick plate 23 are in contact with each other.
[0035] In this embodiment, the sealing between the closed brick plate 23 and the dust cleaning groove 22 is ensured to prevent the medium in the mixing chamber 4 from leaking.
[0036] Working principle: When in use, firstly, the hot cycle gas enters the mixing chamber 4 from the hot gas inlet 5, and at the same time, the gas in the generating section 2 is uniformly introduced into the mixing chamber 4 by using a plurality of circular holes 18, and then the gasified gas from the generating section 2 has a reduced flow rate in the mixing chamber 4, so that the dust in the gasified gas adheres to the inner wall of the mixing chamber 4. In addition, in the mixing chamber 4, the hot cycle gas and the excess oxygen in the gas from the generating section 2 undergo a combustion reaction, thereby avoiding excess Oxygen rises to the distillation section 3 to burn oil, and then the mixed gas in the mixing chamber 4 enters the distillation section 3 from the first spray hole 8, the second spray hole 9, the third spray hole 10, the fourth spray hole 11, the fifth spray hole 12, the sixth spray hole 13, the seventh spray hole 14, the eighth spray hole 15, the ninth spray hole 16 and the tenth spray hole 17. The inner diameters of the tenth nozzle holes 6 and 17 gradually increase, so that the pressure of the heat cycle gas in the mixing chamber 4 is equalized and the gas is evenly distributed, which is conducive to the entry of the gas in the lower generating section 2 so as to be fully mixed, thereby ensuring the stable heat supply of the distillation section 3. After the operation test, the average temperature of the east side of the distillation section 3 before the transformation was 205°C, the average temperature of the west side of the distillation section 3 was 266°C, and the temperature difference between the east and west sides was 51°C; after the transformation, the average temperature of the east side of the distillation section 3 was 422°C, the average temperature of the west side of the distillation section 3 was 456°C, and the temperature difference between the east and west sides was 51°C. The temperature difference between the two sides is 34°C, which makes the heat distribution of the furnace body 1 after the transformation more uniform, and the temperature difference between the east and west sides is significantly reduced, which is more conducive to the shale distillation in the distillation section 3 of the furnace body 1, thereby improving the distillation efficiency and the oil recovery rate. Finally, the closed brick plate 23 can be opened, and the support ring 19 can be rotated to make the scraper 20 rotate in the mixing chamber 4. The scraper 20 is used to scrape the dust on the inner wall of the mixing chamber 4, and the mixing chamber 4 is used to push the dust to the cleaning trough 22, and the dust can be taken out through the cleaning trough 22.
[0037] The above is only a preferred specific implementation method of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can make equivalent substitutions or changes within the technical scope disclosed by the utility model according to the technical solution and improved ideas of the utility model, which should be included in the protection scope of the utility model.
Claims
1. A novel gas channel for a mixing chamber of a retorting furnace, comprising a furnace body (1), characterized in that: The furnace body (1) is provided with a generating section (2) at the bottom, the furnace body (1) is provided with a dry distillation section (3) at the top, the furnace body (1) is provided with a mixing chamber (4) at the middle, the furnace body (1) is provided with a hot gas inlet (5) at the side, the inner cavity of the mixing chamber (4) is provided with a scraping mechanism (6), the outer side of the furnace body (1) is provided with a closing mechanism (7), the top of the inner cavity of the mixing chamber (4) and close to the hot gas inlet (5) are provided with a first spray hole (8), the top of the mixing chamber (4) and A second spray hole (9), a third spray hole (10), a fourth spray hole (11), a fifth spray hole (12), a sixth spray hole (13), a seventh spray hole (14), an eighth spray hole (15), and a ninth spray hole (16) are respectively arranged on both sides of the first spray hole (8); a tenth spray hole (17) is arranged on the top of the mixing chamber (4) and on the side away from the hot gas inlet (5); a plurality of circular holes (18) are arranged at the bottom of the mixing chamber (4); and the bottom ends of the plurality of circular holes (18) are connected to the inner cavity of the generating section (2).
2. A novel gas channel for mixing chamber of a retorting furnace according to claim 1, characterized in that: The scraper mechanism (6) comprises a support ring (19) sleeved in the inner cavity of the mixing chamber (4); a scraper (20) is fixedly sleeved on the side of the support ring (19); the end surface of the scraper (20) is in contact with the inner wall of the mixing chamber (4); the bottom surface of the support ring (19) is fixedly connected to a plurality of support columns (21); the bottom surfaces of the plurality of support columns (21) and the bottom surface of the scraper (20) are both in contact with the bottom surface of the inner cavity of the mixing chamber (4).
3. A novel gas channel for mixing chamber of a retorting furnace according to claim 2, characterized in that: The closing mechanism (7) comprises a cleaning groove (22) provided on the outside of the furnace body (1), the end of the cleaning groove (22) being connected to the inner cavity of the mixing chamber (4), the inner cavity of the cleaning groove (22) being sleeved with a closing brick plate (23), the outer side of the furnace body (1) being provided with a threaded hole (24), the outer side of the closing brick plate (23) being sleeved with a bolt (25), the end of the bolt (25) being threadedly mounted to the inner cavity of the threaded hole (24).
4. A novel gas channel for mixing chamber of a retorting furnace according to claim 1, characterized in that: The plurality of circular holes (18) are evenly arranged in a circle with the central axis of the furnace body (1) as a circle.
5. The novel gas channel of the mixing chamber of the retorting furnace according to claim 1 is characterized in that: The first spray hole (8), the second spray hole (9), the third spray hole (10), the fourth spray hole (11), the fifth spray hole (12), the sixth spray hole (13), the seventh spray hole (14), the eighth spray hole (15), the ninth spray hole (16) and the tenth spray hole (17) are evenly arranged in a circle with the central axis of the furnace body (1) as a circle, and the inner diameters of the first spray hole (8), the second spray hole (9), the third spray hole (10), the fourth spray hole (11), the fifth spray hole (12), the sixth spray hole (13), the seventh spray hole (14), the eighth spray hole (15), the ninth spray hole (16) and the tenth spray hole (17) gradually increase.
6. A novel gas channel for mixing chamber of a retort furnace according to claim 3, characterized in that: The inner wall of the dust cleaning trough (22) is in contact with the side surface of the closed brick plate (23).