A cooking acceleration device for cooking chambers

Abstract

This application discloses a cooking acceleration device for a cooking chamber, including a cooking chamber, a steam pipe, and a first steam inlet branch pipe, as well as a steam delivery pipe connected in parallel to the steam pipe; a pneumatic valve and a manual valve installed on the steam delivery pipe; and a second steam inlet branch pipe connected in parallel to the portion of the steam delivery pipe away from the steam pipe and located above the first steam inlet branch pipe; wherein, several second steam inlet branch pipes are evenly distributed along the circumference of the cooking chamber, and the second steam inlet branch pipes form an angle with the side wall of the cooking chamber, the angle ranging from 30° to 60°. By connecting a steam delivery pipe in parallel to the steam pipe, and connecting multiple second steam inlet branch pipes in parallel to the portion of the steam delivery pipe away from the steam pipe, the steam intake in the cooking chamber is increased through the second steam inlet branch pipes in conjunction with the first steam inlet branch pipe, thereby accelerating the increase in the pre-steaming temperature of the wood chips and avoiding affecting subsequent processes.

Description

Technical Field

[0001] This application relates to the field of papermaking equipment technology, and in particular to a cooking acceleration device for a cooking chamber. Background Technology

[0002] Cooking is a crucial step in papermaking and pulping. Its core function is to separate and remove impurities such as lignin through chemical and physical processes, releasing pure cellulose fibers, while optimizing fiber properties and removing contaminants, thus providing qualified raw materials for producing high-strength and stable-quality paper.

[0003] A cooking chamber is a key piece of equipment used in the pulping process for cooking wood chips, and it is mostly cylindrical. Vertical cylindrical cooking chambers have a large volume and can process large quantities of raw materials, and are widely used in the paper industry.

[0004] Traditional steaming chambers have six steam inlet branches in the lower part: two at the front and two at the back, and one on each side. Steam is introduced into the chamber to steam the wood chips. However, the limited number of steam inlet branches restricts the amount of steam entering the chamber, resulting in a slow rise in the pre-steaming temperature of the wood chips and affecting subsequent processes. Utility Model Content

[0005] The main purpose of this application is to provide a cooking acceleration device for a cooking chamber, which aims to solve the technical problem of slow temperature rise in wood chip pre-steaming, affecting subsequent processes.

[0006] To solve the above-mentioned technical problems, the technical solution of this application is as follows:

[0007] A cooking acceleration device for a cooking chamber includes a cooking chamber, a steam pipe, and a first steam inlet branch pipe, and further includes:

[0008] A steam transmission pipe is connected in parallel to the steam pipeline;

[0009] Pneumatic and manual valves are installed on the steam pipeline;

[0010] The second steam inlet branch pipe is connected in parallel to the portion of the steam transmission pipe away from the steam pipeline and is located above the first steam inlet branch pipe;

[0011] The second steam inlet branch pipes are distributed at equal intervals along the circumference of the cooking chamber, and the second steam inlet branch pipes have an angle with the side wall of the cooking chamber, the angle being 30°~60°.

[0012] Optionally, the steam pipe is provided with a support block, the cooking chamber is provided with a boss along its circumference, and a reinforcing channel steel is provided between the support block and the boss, the reinforcing channel steel having a zigzag bending structure.

[0013] Optionally, the second steam inlet branch pipe is connected to the steam transmission pipe via a flange.

[0014] Optionally, the cooking chamber is equipped with a stirring mechanism, which includes:

[0015] A rotating shaft extends through the top plate of the cooking chamber into the cooking chamber. A first bevel gear is connected to one end of the rotating shaft outside the cooking chamber. A sleeve is fitted on the outer circumference of the rotating shaft and extends into the cooking chamber. A second bevel gear is connected to one end of the rotating shaft outside the cooking chamber, and the second bevel gear is located below the first bevel gear.

[0016] Optionally, the first bevel gear meshes with the second bevel gear and is connected to a third bevel gear, one end of which is connected to a motor.

[0017] Optionally, the inner circumference of the sleeve is connected to the rotating shaft via a bearing, and the outer circumference of the sleeve is mounted at the center of the top plate via a bearing.

[0018] Optionally, a first stirring blade is fitted onto the end of the rotating shaft away from the top plate, and several of the first stirring blades are evenly distributed along the circumference of the rotating shaft.

[0019] Optionally, the portion of the sleeve located inside the cooking chamber is fitted with a second stirring blade, and several of the second stirring blades are evenly distributed along the circumference of the sleeve.

[0020] Optionally, the top plate is provided with a housing for mounting the shaft and motor.

[0021] The beneficial effects of this application are as follows: By connecting a steam supply pipe in parallel to the steam pipeline, and connecting multiple second steam inlet branches in parallel at the portion of the steam supply pipe away from the steam pipeline, the steam intake in the cooking chamber is increased through the second steam inlet branches in conjunction with the first steam inlet branch, thereby accelerating the rise in the pre-steaming temperature of the wood chips and avoiding impact on subsequent processes. Two steam inlet valves are installed, one manual and one pneumatic, to strictly control the steam intake in the pipeline. If one valve leaks, the other valve can promptly control the leak. Attached Figure Description

[0022] Figure 1 This is a first-view view of the cooking acceleration device for a cooking chamber according to this application;

[0023] Figure 2 This is a second-view view of the cooking acceleration device for a cooking chamber according to this application;

[0024] Figure 3 This is a schematic diagram of the stirring mechanism structure of this application;

[0025] Figure 4 This is a schematic diagram of the box structure of this application.

[0026] Reference numerals in the attached drawings: 1. Cooking chamber; 2. Steam pipe; 3. First steam inlet branch pipe; 4. Steam transmission pipe; 5. Pneumatic valve; 6. Manual valve; 7. Second steam inlet branch pipe; 8. Support block; 9. Boss; 10. Reinforcing channel steel; 11. Flange; 12. Rotating shaft; 13. Top plate; 14. First bevel gear; 15. Sleeve; 16. Second bevel gear; 17. Third bevel gear; 18. Motor; 19. First stirring blade; 20. Second stirring blade; 21. Box body. Detailed Implementation

[0027] The specific embodiments of this application will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this application and do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this application described below can be combined with each other as long as they do not conflict with each other.

[0028] Example 1:

[0029] See Figure 1 and Figure 2 A cooking acceleration device for a cooking chamber 1 includes a cooking chamber 1, a steam pipe 2, and a first steam inlet branch pipe 3, and further includes:

[0030] Steam transmission pipe 4 is connected in parallel to the steam pipeline 2;

[0031] Pneumatic valve 5 and manual valve 6 are installed on the steam pipe 4;

[0032] The second steam inlet branch pipe 7 is connected in parallel to the portion of the steam transmission pipe 4 away from the steam pipe 2 and is located above the first steam inlet branch pipe 3;

[0033] Among them, there are several second steam inlet branch pipes 7 distributed at equal intervals along the circumference of the cooking chamber 1, and the second steam inlet branch pipes 7 have an angle with the side wall of the cooking chamber 1, the angle range being 30°~60°.

[0034] Specifically, steam pipe 2 is connected to a steam source. The lower part of the cooking chamber 1 has six first steam inlet branch pipes 3, which are connected to steam pipe 2. In conventional technology, steam is supplied to the chamber through the first steam inlet branch pipes 3 to cook the wood chips. However, the limited number of steam inlet branch pipes restricts the steam intake, resulting in a slow increase in the pre-steaming temperature of the wood chips and affecting subsequent processes. In this application, a steam supply pipe 4 is connected in parallel to steam pipe 2, and multiple second steam inlet branch pipes 7 are connected in parallel to the portion of steam supply pipe 4 away from steam pipe 2. The second steam inlet branch pipes 7, in conjunction with the first steam inlet branch pipes 3, increase the steam intake in the cooking chamber 1, thereby accelerating the increase in the pre-steaming temperature of the wood chips and preventing subsequent processes from being affected. Two steam inlet valves are installed: a manual valve 6 and a pneumatic valve 5, to strictly control the steam intake. If one valve leaks, the other valve can control the leak promptly.

[0035] Several second steam inlet branch pipes 7 are evenly distributed along the circumference of the cooking chamber 1 to facilitate the introduction of steam from multiple directions, ensuring uniform heating of the wood chips inside the chamber, thereby rapidly softening the wood chips and improving the quality of the cooked pulp. The second steam inlet branch pipes 7 form an angle with the side wall of the cooking chamber 1, ranging from 30° to 60°. Within this angle range, when steam is ejected from the second steam inlet branch pipes 7, it has a certain oblique impact force, allowing it to better penetrate the material layer and reach deep into the material pile, accelerating the cooking reaction and preventing bridging. Furthermore, during the cooking process, steam condenses upon cooling. The angle between the second steam inlet branch pipes 7 and the side wall of the cooking chamber 1 allows the condensate to drain under gravity, preventing its accumulation within the second steam inlet branch pipes 7. The steam delivery pipe 4 can be a ring pipe or a straight pipe, as long as it meets the requirements for steam delivery and the installation of the steam inlet branch pipes. In this embodiment, four second steam inlet branch pipes 7 are provided.

[0036] It should be noted that the cooking chamber 1 should be equipped with a feed inlet, a discharge outlet and other components. Since the cooking chamber 1 is existing technology and is not related to the technical problem solved by this application, it is not shown in the figure and will not be described in detail here.

[0037] Example 2:

[0038] See Figure 1 Based on Embodiment 1, optionally, the steam pipe 4 is provided with a support block 8, the cooking chamber 1 is provided with a boss 9 along its circumference, and a reinforcing channel steel 10 is provided between the support block 8 and the boss 9, the reinforcing channel steel 10 having a zigzag bending structure.

[0039] Specifically, one end of the reinforcing channel steel 10 is fixed to the boss 9, and the other end is fixed to the crossbeam (not shown in the figure). The reinforcing channel steel 10 supports and reinforces the steam transmission pipe 4 to improve its stability and reduce the deformation of the second steam inlet branch pipe 7. Since the reinforcing channel steel 10 has a right-angle bend, a support block 8 is installed on the steam transmission pipe 4 to match and support the right-angle bend of the reinforcing channel steel 10, thereby achieving support for the steam transmission pipe 4.

[0040] Optionally, the second steam inlet branch pipe 7 is connected to the steam transmission pipe 4 via flange 11.

[0041] Specifically, the second steam inlet branch pipe 7 is connected to the steam transmission pipe 4 via flange 11, and other connections are welded, all with a closed system. All components are connected by welding and flange 11; when movement is required, the flange 11 can be removed for relocation.

[0042] Example 3:

[0043] See Figure 3 and Figure 4 Based on the above embodiments, optionally, the cooking chamber 1 is provided with a stirring mechanism, the stirring mechanism including:

[0044] A rotating shaft 12 extends through the top plate 13 of the cooking chamber 1 into the cooking chamber 1. A first bevel gear 14 is connected to one end of the rotating shaft 12 outside the cooking chamber 1. A sleeve 15 is fitted around the outer periphery of the rotating shaft 12 and extends into the cooking chamber 1. A second bevel gear 16 is connected to one end of the rotating shaft 12 outside the cooking chamber 1. The second bevel gear 16 is located below the first bevel gear 14. A third bevel gear 17 meshes with the first bevel gear 14 and the second bevel gear 16. A motor 18 is driven to one end of the third bevel gear 17.

[0045] Specifically, the first bevel gear 14 and the second bevel gear 16 are respectively mounted on the upper part of the rotating shaft 12 and the sleeve 15. The third bevel gear 17 is meshed with one side of the first bevel gear 14 and the second bevel gear 16. The motor 18 is mounted on the end of the third bevel gear 17 away from the first bevel gear 14 and the second bevel gear 16. In this way, the motor 18 drives the third bevel gear 17 to rotate, thereby driving the first bevel gear 14 and the second bevel gear 16 to rotate, thus realizing the reverse rotation of the rotating shaft 12 and the sleeve 15, which facilitates the subsequent stirring of the materials in the silo.

[0046] Optionally, the inner circumference of the sleeve 15 is sleeved and connected to the rotating shaft 12 via a bearing, and the outer circumference of the sleeve 15 is installed at the center of the top plate 13 via a bearing.

[0047] Specifically, the inner ring of one bearing is fixed to the outer circumference of the rotating shaft 12, and the outer ring is fixed to the inner circumference of the sleeve 15, so as to realize the movement separation of the rotating shaft 12 and the sleeve 15 and avoid movement interference; the inner ring of the other bearing is fixed to the outer circumference of the sleeve 15, and the outer ring is fixed to the top plate 13, so as to support the sleeve 15 and at the same time avoid movement interference between the sleeve 15 and the top plate 13.

[0048] Optionally, a first stirring blade 19 is fitted onto the end of the rotating shaft 12 away from the top plate 13, and a plurality of the first stirring blades 19 are evenly distributed along the circumference of the rotating shaft 12. A second stirring blade 20 is fitted onto the portion of the sleeve 15 located inside the cooking chamber 1, and a plurality of the second stirring blades 20 are evenly distributed along the circumference of the sleeve 15.

[0049] Specifically, the first stirring blade 19 is rotated by the rotating shaft 12 to facilitate stirring of the wood chips in the lower part of the chamber; the second stirring blade 20 is rotated by the sleeve 15 to facilitate stirring of the wood chips in the upper part of the chamber. Due to the action of the first bevel gear 14 and the second bevel gear 16, the rotating shaft 12 and the sleeve 15 rotate in opposite directions, forming a shearing and convection effect through bidirectional stirring, enhancing the stirring effect, and further accelerating the increase of the pre-steaming temperature of the wood chips.

[0050] Optionally, the top plate 13 is provided with a housing 21 for mounting the rotating shaft 12 and the motor 18.

[0051] Specifically, the upper end of the rotating shaft 12 is installed inside the housing 21 via a bearing, the motor 18 is fixed to the inner wall of the housing 21, and the first bevel gear 14, the second bevel gear 16 and the third bevel gear 17 are all located inside the housing 21. The housing 21 provides dust and moisture protection, protects the internal transmission components, and extends the service life.

[0052] The embodiments of this application have been described in detail above with reference to the accompanying drawings, but this application is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this application, and these variations still fall within the protection scope of this application.

Claims

1. A cooking accelerating device for a cooking chamber (1) comprising a cooking chamber (1), a steam duct (2) and a first steam inlet branch (3), characterized in that, Also includes: Steam pipe (4) is connected in parallel to the steam pipe (2); Pneumatic valve (5) and manual valve (6) are installed on the steam pipe (4); The second steam inlet branch pipe (7) is connected in parallel to the portion of the steam transmission pipe (4) away from the steam pipe (2) and is located above the first steam inlet branch pipe (3); Among them, there are several second steam inlet branch pipes (7) distributed at equal intervals along the circumference of the cooking chamber (1), and the second steam inlet branch pipes (7) have an angle with the side wall of the cooking chamber (1), the angle range being 30°~60°.

2. Acceleration device for cooking of a cooking bin (1) according to claim 1, characterized in that, The steam pipe (4) is provided with a support block (8), the cooking chamber (1) is provided with a boss (9) along its circumference, and a reinforcing channel steel (10) is provided between the support block (8) and the boss (9), the reinforcing channel steel (10) having a zigzag bending structure.

3. Acceleration device for cooking of a cooking bin (1) according to claim 2, characterized in that, The second steam inlet branch pipe (7) is connected to the steam transmission pipe (4) via a flange (11).

4. The cooking acceleration device for a cooking pot (1) according to claim 1, characterized in that, The cooking chamber (1) is equipped with a stirring mechanism, which includes: A rotating shaft (12) extends through the top plate (13) of the cooking chamber (1) into the cooking chamber (1). The end of the rotating shaft (12) located outside the cooking chamber (1) is connected to a first bevel gear (14). A sleeve (15) is fitted on the outer periphery of the rotating shaft (12) and the sleeve (15) extends into the cooking chamber (1). The end of the rotating shaft (12) located outside the cooking chamber (1) is connected to a second bevel gear (16). The second bevel gear (16) is located below the first bevel gear (14).

5. Acceleration device for cooking of a cooking bin (1) according to claim 4, characterized in that, The first bevel gear (14) meshes with the second bevel gear (16) and is connected to a third bevel gear (17), and one end of the third bevel gear (17) is connected to a motor (18).

6. Accelerating device for cooking of a cooking bin (1) according to claim 5, characterized in that, The inner circumference of the sleeve (15) is connected to the rotating shaft (12) through a bearing, and the outer circumference of the sleeve (15) is installed at the center of the top plate (13) through a bearing.

7. Acceleration device for cooking of a cooking bin (1) according to claim 6, characterized in that The first stirring blade (19) is fitted on the end of the rotating shaft (12) away from the top plate (13), and the first stirring blade (19) is evenly distributed in a plurality along the circumference of the rotating shaft (12).

8. Accelerating device for cooking of a cooking bin (1) according to claim 7, characterized in that, The sleeve (15) located inside the cooking chamber (1) is fitted with a second stirring blade (20), and the second stirring blade (20) is evenly distributed in several directions along the circumference of the sleeve (15).

9. Accelerating device for cooking of a cooking bin (1) according to claim 8, characterized in that, The top plate (13) is provided with a housing (21) for mounting the rotating shaft (12) and the motor (18).

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