Roll baking device
By designing multiple outlet nozzles and fixing components, the problem of small flame coverage area of the existing roll baking device is solved, and a larger coverage area and more efficient baking effect is achieved.
Patent Information
- Application Number
- CN202422423002.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-30
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-09-30
AI Technical Summary
The existing roll baking device has a small flame coverage area, resulting in low baking efficiency.
A nozzle structure is designed so that the sum of the cross-sectional areas of the multiple discharge ports perpendicular to the direction of fuel flow is greater than the cross-sectional area of the feed port, forming a flame with a larger cross-sectional surface, and ensuring stable fixation and angle adjustment of the roll through fixing components and adjustment platforms.
Increases the flame coverage area, improves baking efficiency, and makes baking more even and stable.
Smart Images
Figure CN223128914U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of roll heat treatment, and particularly to a roll baking device. Background Art
[0002] In the related art, in order to roll and laminate composite metal plates, it is usually necessary to bake the roll body to prevent the processed surface of the roll from sticking to the metal plate to be processed, thereby avoiding affecting the processing effect. The existing baking devices usually directly use the nozzle of the feed pipe to spray fire on the processed surface of the roll. The nozzle of the feed pipe is small, and the cross-section of the fuel ejected from the nozzle of the feed pipe is also small, resulting in a smaller area that the flame can directly cover on the processed surface and a lower baking efficiency. Summary of the Utility Model
[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. For this purpose, the utility model provides a roll baking device, which can increase the baking area and improve the baking efficiency.
[0004] The roll baking device according to an embodiment of the utility model is used for baking a roll and includes:
[0005] A feed pipe for conveying fuel for baking the roll;
[0006] A nozzle, including a main body and a shielding member. The main body is connected to the feed pipe and has a feed port and a feed channel; the shielding member is connected to the main body and has a plurality of discharge ports; one end of the feed channel is communicated with the feed port, and the other end of the feed channel is communicated with the outside through the plurality of discharge ports;
[0007] The sum of the cross-sectional areas of the plurality of discharge ports perpendicular to the flow direction of the fuel is a first area, and the cross-sectional area of the feed port perpendicular to the flow direction of the fuel is a second area; the first area is greater than the second area.
[0008] The roll baking device according to an embodiment of the utility model has at least the following beneficial effects: when the sum of the cross-sectional areas of the plurality of discharge ports perpendicular to the flow direction of the fuel is greater than the cross-sectional area of the feed port perpendicular to the flow direction of the fuel, the total cross-section of the fuel at the discharge port position will be larger than the cross-section of the fuel at the feed port. Then, when the fuel burns, the cross-section of the flame formed by the fuel will also be larger, thereby increasing the baking area of the flame on the roll and improving the baking efficiency.
[0009] According to some embodiments of the utility model, the cross-sectional area of the discharge port perpendicular to the flow direction of the fuel is a third area, and each third area is smaller than the second area.
[0010] According to some embodiments of the present utility model, one side of the shielding member facing away from the material conveying channel has a baking surface, and the plurality of discharge ports are of the same size and are uniformly arranged within the baking surface.
[0011] According to some embodiments of the present utility model, along the flowing direction of the fuel, the cross-sectional area of the material conveying channel perpendicular to the flowing direction of the fuel gradually increases.
[0012] According to some embodiments of the present utility model, the roll baking device further includes a fixing assembly, the fixing assembly includes a first clamping member and a second clamping member, the first clamping member and the second clamping member are arranged oppositely and can respectively abut against different sides of the roll in the axial direction of the roll to clamp the roll.
[0013] According to some embodiments of the present utility model, one side of the shielding member facing away from the material conveying channel has a baking surface, the plurality of discharge ports are arranged within the baking surface, the baking surface is an arc surface, and the axis of the arc surface is parallel to the arrangement direction of the first clamping member and the second clamping member.
[0014] According to some embodiments of the present utility model, the fixing assembly further includes a first driving member, at least one of the first clamping member and the second clamping member is connected to the first driving member, the first driving member can drive the first clamping member and the second clamping member to rotate synchronously, and the rotation axes of the first clamping member and the second clamping member coincide.
[0015] According to some embodiments of the present utility model, the roll has a first positioning hole and a second positioning hole, the axes of the first positioning hole and the second positioning hole both coincide with the axis of the roll; the first clamping member includes a first tip in a conical shape, the second clamping member includes a second tip in a conical shape, the axes of the first tip and the second tip both coincide with the rotation axis of the first clamping member; the first tip can abut against the edge of the first positioning hole, and at the same time the second tip can abut against the edge of the second positioning hole to clamp the roll and make the axis of the first positioning hole coincide with the axis of the first tip.
[0016] According to some embodiments of the present utility model, the roll baking device further includes a first guide rail, the first guide rail extends along the arrangement direction of the first clamping member and the second clamping member, and the fixing assembly is movably connected to the first guide rail and can move along the first guide rail.
[0017] According to some embodiments of the present utility model, the roll baking device further includes an adjustment platform and an adjustment member. The adjustment platform is for installation on the ground, and the first clamping member and the second clamping member are connected to the adjustment platform; the adjustment member is connected to the adjustment platform. On the same horizontal plane, the position of the projection of the adjustment member avoids the projection of the center of the adjustment platform; part of the adjustment member can move vertically relative to the adjustment platform to tilt the adjustment platform.
[0018] According to some embodiments of the present utility model, the fixing assembly further includes a second guide rail. The second guide rail extends along the arrangement direction of the first clamping member and the second clamping member, and the first clamping member or the second clamping member is movably connected to the second guide rail and can move along the second guide rail.
[0019] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] The following further describes the present utility model in conjunction with the drawings and embodiments, where:
[0021] Figure 1 is a top view schematic diagram of a roll baking device according to some embodiments of the present utility model;
[0022] Figure 2 is Figure 1 a schematic diagram of the nozzle in
[0023] Figure 3 is Figure 2 a cross-sectional schematic diagram of A-A in
[0024] Figure 4 is a cross-sectional schematic diagram of a nozzle according to some embodiments of the present utility model;
[0025] Figure 5 is Figure 1 a front view of
[0026] Figure 6 is a schematic diagram of the cooperation between the first center point and the first positioning hole.
[0027] Reference Signs:
[0028] Roll 10, First positioning hole 11;
[0029] Feeding pipe 100;
[0030] Nozzle 200, Main body 210, Feed inlet 211, Feeding channel 212, Shielding member 220, Discharge outlet 221, Baking surface 222;
[0031] The first clamping member 310, the first center point 311, the second clamping member 320, the second center point 321, the first driving member 330, the second guide rail 340, the fixed platform 350;
[0032] The first guide rail 400;
[0033] The adjusting platform 500;
[0034] The adjusting member 600. Detailed implementation manners
[0035] The embodiments of the present utility model will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.
[0036] In the description of the present utility model, it should be understood that the orientation descriptions, such as up, down, front, back, left, right, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
[0037] In the description of the present utility model, the meaning of several is more than one, and the meaning of multiple is more than two. Understandings such as greater than, less than, exceeding, etc. do not include the present number, and understandings such as above, below, within, etc. include the present number. If the first and the second are described only for the purpose of distinguishing technical features, they should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.
[0038] In the description of the present utility model, unless otherwise clearly defined, words such as setting, installing, connecting, etc. should be understood in a broad sense. Those skilled in the art can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.
[0039] In the description of the present utility model, the descriptions with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.
[0040] In the related art, in order to calender and roll composite metal plates, it is usually necessary to bake the roll body of the rolling mill 10 to prevent the processed surface of the roll body from sticking to the metal plate to be processed, thereby avoiding affecting the processing effect. Existing baking devices usually directly use the nozzle of the feed pipe 100 to spray fire on the processed surface of the roll 10. The nozzle of the feed pipe 100 is small, and the cross-section of the fuel sprayed from the nozzle of the feed pipe 100 is also small, resulting in a smaller area that the flame can directly cover on the processed surface and a lower baking efficiency.
[0041] Please refer to Figure 1 、 Figure 2 As shown in
[0042] The feed pipe 100 of the present invention is used to convey fuel for baking the roll 10. The type of fuel for baking the roll 10 in the present invention can be a common gaseous mixture, such as natural gas, or a gaseous pure substance, such as methane, hydrogen, etc., or a mixture of a common gaseous fuel and a non-combustion-supporting gas, such as a mixture of nitrogen and hydrogen.
[0043] Please refer to Figure 2 、 Figure 3 As shown in
[0044] After the fuel flows out to the outside from the discharge port 221, it will come into contact with air. As a combustion-supporting agent, air can cause the fuel reaching the ignition point to burn. Then, after being ignited, the fuel will form a flame at the discharge port 221 to bake the roll 10. It should be noted that the present invention does not limit the ignition method of the fuel. The staff can manually ignite the fuel at the discharge port 221. The high temperature generated by the combustion of the fuel can drive the subsequent fuel flowing out from the discharge port 221 to continue burning, so that the nozzle 200 can continuously spray the flame for baking the roll 10. In some embodiments, the roll baking device further includes an igniter, and the igniter is arranged outside the shielding member 220 and faces the discharge port 221; the igniter can emit pulses in a manner of manual execution or automatic execution according to the gas release to ignite the fuel sprayed from the discharge port 221.
[0045] When the fuel flows out from a discharge port 221, the cross-section of the fuel depends on the size of the cross-sectional area of the discharge port 221 perpendicular to the flow direction of the fuel. Since the nozzle 200 of the present utility model has a plurality of discharge ports 221, and the plurality of discharge ports 221 are all communicated with the feed port 211 through the material conveying channels 212, the fuel flowing into the material conveying channels 212 from the feed pipe 100 can also flow out from the plurality of discharge ports 221. The total cross-sectional size of the fuel flowing out from the plurality of discharge ports 221 also depends on the sum of the cross-sectional areas of the plurality of discharge ports 221 perpendicular to the flow direction of the fuel.
[0046] In the present utility model, the sum of the cross-sectional areas of the plurality of discharge ports 221 perpendicular to the flow direction of the fuel is denoted as the first area, and the cross-sectional area of the feed port 211 perpendicular to the flow direction of the fuel is denoted as the second area. When the first area is greater than the second area, the size of the total cross-section of the fuel will be greater than the cross-section of the fuel at the feed port 211. Then, when the fuel burns, the cross-sectional size of the flame formed by the fuel will also be larger, so that the area that the flame can directly cover the processing surface is also larger, and the baking efficiency is improved.
[0047] Without departing from the inventive concept of the present utility model, those skilled in the art can adjust the shape of each discharge port 221 and the distribution position of each discharge port 221 according to the actual situation. The cross-sectional area of a discharge port 221 perpendicular to the flow direction of the fuel is denoted as the third area. In some embodiments, the third areas of different discharge ports 221 are not equal. In other embodiments, the third areas of different discharge ports 221 are equal.
[0048] As a preferred embodiment, please refer to Figure 2 、 Figure 3 As shown, the side of the shielding member 220 facing away from the material conveying channel 212 has a baking surface 222. The plurality of discharge ports 221 are of the same size and are uniformly arranged in the baking surface 222. Through the above solution, the cross-sectional sizes of the fuel ejected from different discharge ports 221 are similar, and the distribution of the flame is more uniform, which is beneficial to making the baking of the roller 10 more uniform.
[0049] Further, in some embodiments, the third area is smaller than the second area. Through the above solution, part of the fuel entering the material conveying channel 212 through the discharge port 221 will be blocked by the blocking member 220 and accumulate in the material conveying channel 212, and then flow out from different discharge ports 221 under the gas pressure of the subsequent fuel; since the fuel accumulates in the material conveying channel 212, the air pressure at various parts inside the material conveying channel 212 increases, and the flow rate of the fuel ejected from each discharge port 221 also increases synchronously. Then, the ratio of the flow rates of the fuel flowing out from different discharge ports 221 is smaller, and the difference in the flow rates of the fuel flowing out from different discharge ports 221 is also smaller, which is beneficial to making the baking effect on the roll 10 more uniform and increasing the baking efficiency. On the other hand, on the premise that the area of the baking surface 222 remains unchanged, making the third area smaller than the second area can also further increase the number of discharge ports 221, so that the arrangement of the discharge ports 221 is more dense, which is beneficial to making the baking effect on the roll 10 more uniform and increasing the baking efficiency.
[0050] As previously mentioned, the fuel can enter the material conveying channel 212 inside the main body 210 from one end through the material conveying pipe 100, and then flow to the outside from different discharge ports 221 via the material conveying channel 212. Those skilled in the art can design the shape of the material conveying channel 212 by themselves. As a preferred solution, please refer to Figure 2 、 Figure 3 As shown, along the flow direction of the fuel, the cross-sectional area of the material conveying channel 212 perpendicular to the flow direction of the fuel gradually increases. Through the above solution, the fuel entering the material conveying channel 212 from the feed port 211 can diffuse in the material conveying channel 212. On the other hand, the gradual expansion of the material conveying channel 212 can also make the blocking member 220 covering one end of the material conveying channel 212 increase accordingly, so that the baking surface 222 has a larger area to set the discharge ports, which can further increase the baking area of the roll 10.
[0051] Without departing from the inventive concept of the present utility model, those skilled in the art can directly bake the roll 10 placed on the ground through the roll baking device of the present utility model.
[0052] As a further preferred solution, please refer to Figure 1 、 Figure 5 As shown, the roll baking device further includes a fixing component, and the fixing component includes a first clamping member 310 and a second clamping member 320. The first clamping member 310 and the second clamping member 320 are arranged oppositely and can respectively abut against different sides of the roll 10 in the axial direction of the roll 10 to clamp the roll 10. By clamping the roll 10 with the first clamping member 310 and the second clamping member 320, the roll 10 can be fixed on the fixing component, which can prevent the roll 10 from moving during the baking process and make the baking effect more stable.
[0053] In some embodiments, the first clamping member 310 and the second clamping member 320 are chucks, and the two chucks respectively clamp the circumferential surfaces on both sides of the roll 10 to fix the roll 10.
[0054] As a preferred embodiment, the fixing assembly further includes a second guide rail 340. The second guide rail 340 extends along the arrangement direction of the first clamping member 310 and the second clamping member 320. The first clamping member 310 is movably connected to the second guide rail 340 and can move along the second guide rail 340. The first clamping member 310 can move along the second guide rail 340 so that the first clamping member 310 can approach or move away from the second clamping member 320. Then, the first clamping member 310 and the second clamping member 320 can fix the roll 10 by simultaneously abutting against different sides in the axial direction of the roll 10, and both the first clamping member 310 and the second clamping member 320 can fix rolls 10 with different axial lengths.
[0055] As another preferred embodiment, please refer to Figure 1 、 Figure 5 As shown, the fixing assembly further includes a second guide rail 340. The second guide rail 340 extends along the arrangement direction of the first clamping member 310 and the second clamping member 320. The second clamping member 320 is movably connected to the second guide rail 340 and can move along the second guide rail 340. The second clamping member 320 can move along the second guide rail 340 so that the second clamping member 320 can approach or move away from the first clamping member 310. Then, the first clamping member 310 and the second clamping member 320 can fix the roll 10 by simultaneously abutting against different sides in the axial direction of the roll 10, and both the first clamping member 310 and the second clamping member 320 can fix rolls 10 with different axial lengths.
[0056] As previously mentioned, those skilled in the art can adjust the shape of each discharge port 221 and the distribution position of each discharge port 221 according to the actual situation. Please refer to Figure 3 As shown, in some embodiments, the baking surface 222 is a flat surface, and the discharge ports 221 distributed on the baking surface 222 all face the same direction.
[0057] As a preferred solution, please refer to Figure 1 、 Figure 4 As shown, the baking surface 222 is an arc surface, and the axis of the arc surface is parallel to the arrangement direction of the first clamping member 310 and the second clamping member 320. Setting the baking surface 222 as an arc surface can make the discharge ports 221 at different positions closer to the roll 10, and can effectively improve the baking effect of the flames ejected from different discharge ports 221 on the roll 10.
[0058] Furthermore, please refer to Figure 1As shown, the fixing component further includes a first driving member 330. At least one of the first clamping member 310 and the second clamping member 320 is connected to the first driving member 330. The first driving member 330 can drive the first clamping member 310 and the second clamping member 320 to rotate synchronously, and the rotation axes of the first clamping member 310 and the second clamping member 320 coincide. The above solution can make the first clamping member 310 and the second clamping member 320 rotate synchronously around the same rotation axis through the first driving member 330, so that the roll 10 clamped by the first clamping member 310 and the second clamping member 320 can rotate around the rotation axis, enabling the roll 10 to be directly baked by the flame at different positions in the circumferential direction, which is beneficial to enhancing the baking efficiency.
[0059] Without departing from the inventive concept of the present utility model, those skilled in the art can independently select the connection relationship between the first driving member 330, the first clamping member 310, and the second clamping member 320. In some embodiments, the first driving member 330 simultaneously drives the first clamping member 310 and the second clamping member 320 to rotate synchronously. In other embodiments, the first driving member 330 drives the first clamping member 310 to rotate, and the first clamping member 310 drives the second clamping member 320 to rotate synchronously with the first clamping member 310 through the transmission connection with the second clamping member 320. In other embodiments, the first driving member 330 drives the second clamping member 320 to rotate, and the second clamping member 320 drives the first clamping member 310 to rotate synchronously with the second clamping member 320 through the transmission connection with the first clamping member 310.
[0060] Based on the above embodiments, please refer to Figure 1 、 Figure 6 As shown, where Figure 1 、 Figure 6 the second positioning hole is not shown. In some embodiments, the roll 10 has a first positioning hole 11 and a second positioning hole. The axes of the first positioning hole 11 and the second positioning hole both coincide with the axis of the roll 10; the first clamping member 310 includes a first tip 311 in a conical shape, and the second clamping member 320 includes a second tip 321 in a conical shape. The axes of the first tip 311 and the second tip 321 both coincide with the rotation axis of the first clamping member 310; the first tip 311 can abut against the edge of the first positioning hole 11, and at the same time, the second tip 321 can abut against the edge of the second positioning hole to clamp the roll 10 and make the axis of the first positioning hole 11 coincide with the axis of the first tip 311. Through the above solution, for the roll 10 with the first positioning hole 11 and the second positioning hole, the first clamping member 310 and the second clamping member 320 can more easily align the roll 10 by the abutment of the tip and the positioning hole, so that the axis of the roll 10 coincides with the rotation axis of the clamping member, and the roll 10 can rotate around its own axis during the baking process, thus making the baking effect on the roll 10 more uniform.
[0061] Further, please refer to Figure 1 As shown, in some embodiments, the roll baking device further includes a first guide rail 400. The first guide rail 400 extends along the arrangement direction of the first clamping member 310 and the second clamping member 320. The fixing assembly is movably connected to the first guide rail 400 and can move along the first guide rail 400. When the fixing assembly moves along the first guide rail 400, since the first guide rail 400 extends along the arrangement direction of the first clamping member 310 and the second clamping member 320, the roll 10 clamped by the first clamping member 310 and the second clamping member 320 can move relative to the nozzle 200 along the arrangement direction of the first clamping member 310 and the second clamping member 320. Furthermore, different positions of the roll 10 in the axial direction can be directly baked by the flame, which is beneficial to enhancing the baking efficiency.
[0062] In some embodiments, the fixing assembly further includes a fixing platform 350. The first clamping member 310 and the second clamping member 320 are connected to the fixing platform 350. The fixing platform 350 is movably connected to the first guide rail 400 and can move along the first guide rail 400. The above solution moves the fixing platform 350 to make the first clamping member 310 and the second clamping member 320 move relative to the nozzle 200, and the movement stability is stronger, which is beneficial to enhancing the baking stability.
[0063] Further, please refer to Figure 5 As shown, the roll baking device further includes an adjusting platform 500 and an adjusting member 600. The adjusting platform 500 is used to be installed on the ground, and the first clamping member 310 and the second clamping member 320 are connected to the adjusting platform 500; the adjusting member 600 is connected to the adjusting platform 500. On the same horizontal plane, the position of the projection of the adjusting member 600 avoids the projection of the center of the adjusting platform 500; part of the adjusting member 600 can move vertically relative to the adjusting platform 500 to tilt the adjusting platform 500.
[0064] The present utility model does not limit the way in which the adjusting member 600 moves vertically relative to the adjusting platform 500. In some embodiments, the adjusting member 600 is threadedly connected to the adjusting platform 500, and the staff can rotate the adjusting member 600 to make the adjusting member 600 move vertically relative to the adjusting platform 500.
[0065] When part of the adjusting member 600 moves vertically relative to the adjusting platform 500 to tilt the adjusting platform 500, the first clamping member 310 and the second clamping member 320 connected to the adjusting platform 500 can also tilt synchronously. Furthermore, the roll 10 clamped by the first clamping member 310 and the second clamping member 320 tilts relative to the nozzle 200, changing the baking angle of the nozzle 200 on the roll 10, so that different positions of the flame ejected from the discharge port 221 bake the roll 10, meeting the baking requirements of different rolls 10.
[0066] Specifically, please refer to Figure 1 and Figure 5 As shown, in some embodiments, the roll baking device includes four adjusting members 600, and the four adjusting members 600 are respectively located at the four corners of the adjusting platform 500. The staff can individually adjust the adjusting member 600 located at the front left side to move the adjusting member 600 at the front left side downward relative to the adjusting platform 500, increasing the distance from the ground at the front left side of the adjusting platform 500, so that the front left side of the adjusting platform 500 is lifted relative to the rear right side of the adjusting platform 500, the adjusting platform 500 as a whole is tilted, the front left side of the fixing device is also lifted relative to the rear right side of the fixing device, and further the left front end of the roll 10 is lifted relative to the right rear end, the roll 10 is tilted relative to the nozzle 200, then the baking angle of the nozzle 200 on the roll 10 is changed, and the position where the flame area ejected from the discharge port 221 contacts the roll 10 is also different, and the baking temperature is changed. In the above embodiments, the staff can also vertically move different adjusting members 600 relative to the adjusting platform individually, or vertically move multiple adjusting members 600 relative to the adjusting platform simultaneously to change the tilting direction of the roll 10.
[0067] Without departing from the inventive concept of the present utility model, the present utility model does not limit the position where the adjusting member 600 is connected to the adjusting platform 500, nor does it limit the number of the adjusting members 600 and the shape of the adjusting platform 500. In some embodiments, the roll baking device includes two adjusting members 600, and the horizontal plane projection shape of the adjusting platform 500 is a rounded rectangle, and the two adjusting members 600 are respectively arranged on both sides of the adjusting platform 500 in the length direction.
[0068] The above has described the embodiments of the present utility model in detail with reference to the drawings, but the present utility model is not limited to the above embodiments. Various changes can be made without departing from the gist of the present utility model within the knowledge scope of those of ordinary skill in the art to which the present utility model pertains. In addition, the embodiments of the present utility model and the features in the embodiments can be combined with each other without conflict.
Claims
1. A roll baking device for baking rolls, characterized in that, Comprising: A material conveying pipe for conveying fuel for baking the roll; A nozzle, including a main body and a shielding member, the main body is connected to the material conveying pipe and has a feed inlet and a material conveying channel; the shielding member is connected to the main body and has a plurality of discharge ports; one end of the material conveying channel communicates with the feed inlet, and the other end of the material conveying channel communicates with the outside through the plurality of discharge ports; The sum of the cross-sectional areas of the plurality of discharge ports perpendicular to the flow direction of the fuel is a first area, and the cross-sectional area of the feed inlet perpendicular to the flow direction of the fuel is a second area; the first area is greater than the second area.
2. The roll baking device according to claim 1, characterized in that, The cross-sectional area of the discharge port perpendicular to the flow direction of the fuel is a third area, and the third area is smaller than the second area.
3. The roll baking device according to claim 1 or 2, characterized in that, One side of the shielding member facing away from the material conveying channel has a baking surface, the plurality of discharge ports are of the same size and are uniformly arranged on the baking surface.
4. The roll baking device according to claim 1, characterized in that, Along the flow direction of the fuel, the cross-sectional area of the material conveying channel perpendicular to the flow direction of the fuel gradually increases.
5. The roll baking device according to claim 1, characterized in that, The roll baking device further includes a fixing assembly, the fixing assembly includes a first clamping member and a second clamping member, the first clamping member and the second clamping member are arranged oppositely and can respectively abut against different sides of the roll in the axial direction of the roll to clamp the roll.
6. The roll baking device according to claim 5, characterized in that, One side of the shielding member facing away from the material conveying channel has a baking surface, the plurality of discharge ports are arranged on the baking surface, the baking surface is an arc surface, and the axis of the arc surface is parallel to the arrangement direction of the first clamping member and the second clamping member.
7. The roll baking device according to claim 5, characterized in that, The fixing assembly further includes a first driving member, at least one of the first clamping member and the second clamping member is connected to the first driving member, the first driving member can drive the first clamping member and the second clamping member to rotate synchronously, and the rotation axes of the first clamping member and the second clamping member coincide.
8. The roll baking device according to claim 7, characterized in that, The roll has a first positioning hole and a second positioning hole, the axes of the first positioning hole and the second positioning hole coincide with the axis of the roll; the first clamping member includes a first tip in a conical shape, the second clamping member includes a second tip in a conical shape, and the axes of the first tip and the second tip coincide with the rotation axis of the first clamping member; The first tip can abut against the edge of the first positioning hole, and at the same time the second tip can abut against the edge of the second positioning hole to clamp the roll and make the axis of the first positioning hole coincide with the axis of the first tip.
9. The roll baking device according to claim 5, characterized in that, The roll baking device further includes a first guide rail, the first guide rail extends along the arrangement direction of the first clamping member and the second clamping member, and the fixing assembly is movably connected to the first guide rail and can move along the first guide rail.
10. The roll baking device according to claim 5, characterized in that, The roll baking device further includes an adjustment platform and an adjustment member. The adjustment platform is used to be installed on the ground, and the first clamping member and the second clamping member are connected to the adjustment platform; the adjustment member is connected to the adjustment platform. On the same horizontal plane, the position of the projection of the adjustment member avoids the projection of the center of the adjustment platform; a part of the adjustment member can move vertically relative to the adjustment platform to tilt the adjustment platform.
11. The roll baking device according to claim 5, characterized in that, The fixing assembly further includes a second guide rail. The second guide rail extends along the arrangement direction of the first clamping member and the second clamping member. The first clamping member or the second clamping member is movably connected to the second guide rail and can move along the second guide rail.