Gooseneck device for cement processing preheater

Abstract

The utility model relates to the technical field of cement production, and discloses a gooseneck pipe device for a cement processing preheater, which comprises an inlet pipe and a fixed cylinder. According to the gooseneck pipe device for the cement processing preheater, a double-shaft motor is arranged, the double-shaft motor operates, a threaded rod can rotate, a threaded cylinder can be driven to be located at one end of the surface of the threaded rod, accordingly, the threaded cylinder can be moved out of a fixed cylinder, and the angle of an inverted-V-shaped frame can be adjusted by moving out the positions of the two threaded cylinders; according to the optimized inverted-V-shaped structure, the resistance of a preheater system can be reduced, the power requirement of a high-temperature fan can be reduced, meanwhile, the angle-adjustable structure adapts to air volume fluctuation under different working conditions, the angle adjusting range of the inclination angle of the inverted-V-shaped pipe is adjusted to be + / -10 degrees, and unplanned shutdown caused by material accumulation and collapse is reduced; and by arranging the corrugated pipe section, + / -15-degree angle adjustment can be allowed, and permanent deformation is not generated.

Description

Technical Field

[0001] This application relates to the field of cement production technology, specifically a gooseneck tube device for a cement processing preheater. Background Technology

[0002] In the cement industry, the decomposition furnace is the core part of the dry process cement calcination process. After the raw meal is decomposed by the heat and waste heat of the coal combustion in the decomposition furnace, it enters the subsequent air duct and cyclone with the rising high-speed airflow through the gooseneck tube. During this process, the raw meal and the high-temperature airflow continuously transfer heat between the gas and the material. Finally, the decomposition task is completed after entering the cyclone. The gooseneck tube, as the intermediate connection between the decomposition furnace and the cyclone and the airflow turning component, plays a key role in the decomposition of raw meal.

[0003] An existing patent (publication number: CN214120759U) discloses an anti-material-accumulation gooseneck pipe for a cement production decomposition furnace, comprising a pipe body, with connecting pipes fixedly connected to the inner walls of both ends of the pipe body, and fixing rings threadedly connected to the outer sides of both ends of the pipe body. The pipe body includes a bent portion and an inverted V-shaped portion, with the bent portion located above the inverted V-shaped portion. Its beneficial effects are that, through the combined action of a first sliding groove, a sliding block, a telescopic component, an L-shaped plate, a movable rod, a triangular plate, a second sliding groove, a second spring, an annular through groove, and an annular block, the L-shaped plate can move within the pipe body when gas flows, thereby effectively preventing material accumulation within the pipe body. The cleaning port and cleaning cover allow for convenient cleaning of the L-shaped plate and triangular plate, and the connecting pipes and fixing rings allow for easy connection of the pipe body to other pipe fittings.

[0004] While the device in the aforementioned comparative document solves the problems of material accumulation and tedious cleaning, the fixed-angle gooseneck bend in the device is prone to crusting, which increases the system's ventilation resistance, requires high-temperature fans to operate at high loads, and significantly increases power consumption. Therefore, by adjusting the angle of the inverted V section, the airflow path can be dynamically changed to eliminate the structural defects caused by material accumulation. For this purpose, a gooseneck device for cement processing preheaters is proposed. Utility Model Content

[0005] To address the shortcomings of existing technologies, this application provides a gooseneck tube device for cement processing preheaters, which has advantages such as an adjustable angle structure, and solves the problem that high-temperature fans need to operate at high loads and significantly increase power consumption when ventilation resistance increases.

[0006] To achieve the above objectives, this application provides the following technical solution: a gooseneck tube device for a cement processing preheater, comprising an inlet pipe and a fixed cylinder, wherein an inverted V-shaped pipe is fixedly connected to one end of the inlet pipe, and an outlet pipe is fixedly connected to one end of the inverted V-shaped pipe;

[0007] An inverted V-shaped frame is fixedly connected inside the inverted V-shaped tube. A rubber pad is placed in the middle of the inverted V-shaped frame. A rotating shaft is tightly nested inside the inverted V-shaped frame via bearings. Two rotating blocks are fixedly connected to the surface of the rotating shaft. Protective iron sheets are fixedly connected to the surfaces of the two rotating blocks. The rotating shaft is inside the protective iron sheets. A shrinkage groove is opened inside the rotating block. An elastic shrinkage rod is fixedly connected to the top of the shrinkage groove. A sliding plate is fixedly connected to the bottom of the elastic shrinkage rod. Two fixed blocks are fixedly connected to opposite sides inside the inverted V-shaped frame. A dual-axis motor is fixedly connected inside the fixed cylinder. A threaded rod is fixedly connected to the output end of the dual-axis motor. A threaded cylinder is threadedly connected to the surface of the threaded rod. A connecting block is fixedly connected to the side of the threaded cylinder. The connecting block is movably connected between the two fixed blocks via a pin.

[0008] The above scheme, by setting up a dual-axis motor, allows the threaded rod to rotate, which in turn drives the threaded cylinder to one end of the threaded rod surface. This allows the threaded cylinder to be moved out of the fixed cylinder. By moving the two threaded cylinders out of their positions, the angle of the inverted V-shaped frame can be adjusted. The optimized inverted V-shaped structure reduces the resistance of the preheater system and lowers the power requirement of the high-temperature fan. At the same time, the adjustable angle structure adapts to airflow fluctuations under different operating conditions, and the angle adjustment range of the inverted V-shaped tube is ±10°, reducing unplanned downtime caused by material accumulation and collapse. The corrugated pipe section set at the bend of the inverted V-shaped tube allows for an angle adjustment of ±15° without permanent deformation.

[0009] Furthermore, a limiting groove is formed on the inner side of the fixed cylinder, and a limiting block is fixedly connected to the surface of the threaded cylinder, with the limiting block slidably connected within the limiting groove.

[0010] The above solution, by setting limit grooves and limit blocks, can constrain the linear motion trajectory of the threaded cylinder, prevent rotational deviation, ensure adjustment stability, and avoid mechanical jamming caused by vibration.

[0011] Furthermore, the inverted V-frame surface has sliding grooves and rotating grooves on both opposite sides. Two sliding rods are fixedly connected inside the sliding grooves. A sliding plate is fixedly connected to the back of the slide plate. Two sliding cylinders are fixedly connected inside the sliding plate. The sliding cylinders are slidably connected to the surface of the sliding rods.

[0012] The above scheme, by setting up sliding rods, sliding cylinders and sliding plates, can constrain the linear motion trajectory of the skateboard, prevent deviation, and ensure the stability of the skateboard's reciprocating vibration.

[0013] Furthermore, a fixed shell is fixedly connected to each of the opposite sides inside the inverted V-frame, and a rotary motor is fixedly connected to the inner side of the fixed shell.

[0014] The above solution, by setting up a rotary motor, can provide power for the reciprocating vibration of the skateboard.

[0015] Furthermore, the output end of the rotary motor rotates through the inverted V-frame and is fixedly connected to a rotating plate. A cam is fixedly connected to the side of the rotating plate, a contact plate is fixedly connected to the back of the slide plate, a contact pad is fixedly connected to the side of the contact plate, and the surface of the cam overlaps the surface of the contact pad.

[0016] The above scheme uses a rotary motor to drive a cam to rotate, generating high-frequency vibration. The cam pushes the contact pad, and in conjunction with the elastic retraction rod, the slide plate can reciprocate, thereby achieving dynamic material cleaning.

[0017] Furthermore, the surface of the skateboard is provided with multiple flow channels.

[0018] The above solution, by creating airflow channels on the surface of the skateboard with a depth of 8mm and a width of 10mm, can optimize airflow distribution and reduce local resistance.

[0019] Furthermore, a connecting pipe is fixedly connected inside the inlet pipe and the outlet pipe, and a horn pipe is fixedly connected to the top of the connecting pipe.

[0020] The above solution, by setting up a horn tube with a 5% increase in the inlet and a 5% decrease in the outlet, can reduce the impact and wear of materials on the tube wall.

[0021] Furthermore, a cleaning port is provided at the top of the inverted V-tube, and a top cover is threadedly connected to the top of the cleaning port. An annular sealing strip is fixedly connected to the top of the top cover.

[0022] The above solution provides a manual cleaning channel by setting up a cleaning port, allowing for the rapid removal of residual material. The annular sealing strip is made of high-temperature resistant silicone.

[0023] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0024] This gooseneck tube device for cement processing preheaters features a dual-shaft motor. The motor's operation rotates the threaded rod, and the limiting block and groove move the threaded cylinder to one end of the threaded rod surface, allowing it to be removed from the fixed cylinder. This adjustment of the two threaded cylinders allows for adjustment of the inverted V-shaped frame angle. The optimized inverted V-shaped structure reduces preheater system resistance and lowers the power requirement of the high-temperature fan. The adjustable angle structure adapts to airflow fluctuations under different operating conditions, with an inverted V-shaped tube angle adjustment range of ±10°, reducing unplanned downtime caused by material accumulation and collapse. A corrugated section at the inverted V-shaped tube bend allows for ±15° angle adjustment without permanent deformation. Attached Figure Description

[0025] Figure 1 This is a frontal three-dimensional structural diagram of this application;

[0026] Figure 2 This is a schematic diagram of the structure in frontal cross-section in this application;

[0027] Figure 3 for Figure 2 Enlarged structural diagram at point A;

[0028] Figure 4 for Figure 2 Enlarged structural diagram at point B;

[0029] Figure 5 for Figure 2 Enlarged structural diagram at point C.

[0030] In the picture:

[0031] 1. Enter the pipe;

[0032] 2. Inverted V-tube; 201. Inverted V-frame; 202. Protective sheet metal; 203. Rotating shaft; 204. Rotating block; 205. Shrinkage groove; 206. Elastic shrinkage rod; 207. Slide plate; 208. Fixing block; 209. Sliding groove; 2010. Rotating groove; 2011. Sliding rod; 2012. Sliding plate; 2013. Sliding cylinder; 2014. Contact plate; 2015. Contact pad; 2016. Fixing shell; 2017. Rotary motor; 2018. Rotating plate; 2019. Cam; 2020. Guide groove; 2021. Rubber pad; 2022. Cleaning port;

[0033] 3. Discharge pipe;

[0034] 4. Connecting pipe; 401, flared pipe;

[0035] 5. Fixed cylinder; 501. Dual-shaft motor; 502. Threaded rod; 503. Threaded cylinder; 504. Connecting block; 505. Limiting groove; 506. Limiting block;

[0036] 6. Top cover; 601. Annular sealing strip. Detailed Implementation

[0037] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0038] Please see Figure 1 , Figure 3 and Figure 4 In this embodiment, a gooseneck tube device for a cement processing preheater includes an inlet pipe 1 and a fixed cylinder 5. One end of the inlet pipe 1 is fixedly connected to an inverted V-tube 2, and one end of the inverted V-tube 2 is fixedly connected to an outlet pipe 3.

[0039] An inverted V-shaped frame 201 is fixedly connected inside the inverted V-shaped tube 2. A rubber pad 2021 is placed in the middle of the inverted V-shaped frame 201. A rotating shaft 203 is tightly nested inside the inverted V-shaped frame 201 via bearings. Two rotating blocks 204 are fixedly connected to the surface of the rotating shaft 203. A protective iron sheet 202 is fixedly connected to the surface of the two rotating blocks 204. The rotating shaft 203 is located inside the protective iron sheet 202. A shrinkage groove 205 is opened inside the rotating block 204. An elastic shrinkage rod 206 is fixedly connected to the top of the shrinkage groove 205. A sliding plate 207 is fixedly connected to the bottom of the elastic shrinkage rod 206. Two fixed blocks 208 are fixedly connected to opposite sides inside the inverted V-shaped frame 201. A dual-axis motor 501 is fixedly connected inside the fixed cylinder 5. A threaded rod 502 is fixedly connected to the output end of the dual-axis motor 501. A threaded cylinder 503 is threadedly connected to the surface of the threaded rod 502. The threaded cylinder 503 is fixed to the side. A connecting block 504 is connected between two fixed blocks 208 via a pin. A dual-axis motor 501 is installed, which rotates the threaded rod 502. This rotates the threaded cylinder 503 at one end of the threaded rod 502, allowing the threaded cylinder 503 to be moved out of the fixed cylinder 5. By moving the two threaded cylinders 503 out of the fixed cylinder 5, the angle of the inverted V-shaped frame 201 can be adjusted. The optimized inverted V-shaped structure reduces the resistance of the preheater system and the power requirement of the high-temperature fan. At the same time, the adjustable angle structure adapts to airflow fluctuations under different operating conditions. The angle adjustment range of the inverted V-shaped pipe 2 is ±10°, reducing unplanned downtime caused by material accumulation and collapse. The corrugated pipe section at the bend of the inverted V-shaped pipe 2 allows for an angle adjustment of ±15° without permanent deformation.

[0040] Please see Figure 4A limiting groove 505 is provided on the inner side of the fixed cylinder 5, and a limiting block 506 is fixedly connected to the surface of the threaded cylinder 503. The limiting block 506 is slidably connected in the limiting groove 505. Through the above scheme, by setting the limiting groove 505 and the limiting block 506, the linear motion trajectory of the threaded cylinder 503 can be constrained, preventing rotational deviation, ensuring adjustment stability, and avoiding mechanical jamming caused by vibration. Sliding grooves 209 and rotating grooves 2010 are provided on opposite sides of the surface of the inverted V frame 201. Two sliding rods 2011 are fixedly connected inside the sliding groove 209. A sliding plate 2012 is fixedly connected to the back of the slide plate 207. Two sliding cylinders 2013 are fixedly connected inside the sliding plate 2012. The sliding cylinders 2013 are slidably connected to the surface of the sliding rods 2011. By setting the sliding rods 2011, sliding cylinders 2013 and sliding plate 2012, the linear motion trajectory of the slide plate 207 can be constrained, preventing deviation and ensuring the reciprocating vibration stability of the slide plate 207.

[0041] Please see Figure 3 , Figure 4 and Figure 5 Inside the inverted V-frame 201, fixed shells 2016 are fixedly connected to opposite sides. A rotary motor 2017 is fixedly connected to the inner side of each fixed shell 2016. The rotary motor 2017 provides power for the reciprocating vibration of the slide plate 207. The output end of the rotary motor 2017 rotates through the inverted V-frame 201 and is fixedly connected to a rotating plate 2018. A cam 2019 is fixedly connected to the side of the rotating plate 2018. A contact plate 2014 is fixedly connected to the back of the slide plate 207. A contact pad 2015 is fixedly connected to the side of the contact plate 2014. The surface of the cam 2019 overlaps the surface of the contact pad 2015. Driven by the rotary motor 2017, the cam 2019 rotates, generating high-frequency vibration. The cam 2019 pushes the contact pad 2015, and in conjunction with the elastic retraction rod 206, the slide plate 207 can reciprocate. This allows for dynamic material cleaning. Multiple guide grooves 2020 are provided on the surface of the slide plate 207. The guide grooves 2020, with a depth of 8mm and a width of 10mm, optimize airflow distribution and reduce local resistance. A connecting pipe 4 is fixedly connected inside the inlet pipe 1 and the outlet pipe 3. A horn pipe 401 is fixedly connected to the top of the connecting pipe 4. By setting the horn pipe 401, the inlet end of the horn pipe 401 is enlarged by 5% and the outlet end is reduced by 5%, which can reduce the impact and wear of materials on the pipe wall. A cleaning port 2022 is provided at the top of the inverted V pipe 2. A top cover 6 is threaded to the top of the cleaning port 2022. An annular sealing strip 601 is fixedly connected to the top of the top cover 6. By setting the cleaning port 2022, a manual material cleaning channel is provided, allowing for the rapid removal of residual material. The annular sealing strip 601 is made of high-temperature resistant silicone.

[0042] In this embodiment, the optimized inverted V-shaped structure can reduce the resistance of the preheater system and lower the power requirement of the high-temperature fan. At the same time, the adjustable angle structure can adapt to airflow fluctuations under different operating conditions. The angle adjustment range of the inverted V-shaped pipe 2 is ±10°, reducing unplanned downtime caused by material accumulation and collapse. The corrugated pipe section at the bend of the inverted V-shaped pipe 2 allows for ±15° angle adjustment without permanent deformation.

[0043] The working principle of the above embodiment is as follows: When in use, the rotary motor 2017 runs, which can make the cam 2019 rotate. The rotation of the cam 2019 can push the contact plate 2014 and the slide plate 207 to move. Then, in conjunction with the elastic retraction rod 206, the slide plate 207 can reciprocate, thereby effectively preventing the material carried in the gas from accumulating in the pipe. At the same time, the flow guide groove 2020 opened on the surface of the slide plate 207 can optimize the airflow distribution and reduce local resistance. When it is necessary to clean the surface of the slide plate 207, the cleaning port 2022 can provide a manual cleaning channel, allowing for the rapid removal of residual material.

[0044] When the angle of the inverted V-frame 201 needs to be adjusted, the dual-axis motor 501 operates, which can rotate the threaded rod 502. Through the limiting block 506 and the limiting groove 505, the threaded cylinder 503 can be driven to one end of the surface of the threaded rod 502, thereby moving the threaded cylinder 503 out of the fixed cylinder 5. By moving the two threaded cylinders 503 out of position, the angle of the inverted V-frame 201 can be adjusted. The optimized inverted V-section structure can reduce the resistance of the preheater system and reduce the power demand of the high-temperature fan.

[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0046] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A gooseneck tube device for a cement processing preheater, comprising an inlet pipe (1) and a fixed cylinder (5), characterized in that: One end of the inlet pipe (1) is fixedly connected to an inverted V-shaped pipe (2), and one end of the inverted V-shaped pipe (2) is fixedly connected to an outlet pipe (3). An inverted V-shaped frame (201) is fixedly connected inside the inverted V-shaped tube (2). A rubber pad (2021) is provided in the middle of the inverted V-shaped frame (201). A rotating shaft (203) is tightly nested inside the inverted V-shaped frame (201) via a bearing. Two rotating blocks (204) are fixedly connected to the surface of the rotating shaft (203). Protective iron sheets (202) are fixedly connected to the surfaces of the two rotating blocks (204). The rotating shaft (203) is located inside the protective iron sheets (202). A shrinkage groove (205) is opened inside the rotating block (204). A rubber pad (2021) is fixedly connected to the top of the shrinkage groove (205). An elastic retractable rod (206) is fixedly connected to a sliding plate (207) at its bottom end. Two fixed blocks (208) are fixedly connected to opposite sides inside the inverted V-frame (201). A dual-axis motor (501) is fixedly connected inside the fixed cylinder (5). A threaded rod (502) is fixedly connected to the output end of the dual-axis motor (501). A threaded cylinder (503) is threadedly connected to the surface of the threaded rod (502). A connecting block (504) is fixedly connected to the side of the threaded cylinder (503). The connecting block (504) is movably connected between the two fixed blocks (208) by a pin.

2. The gooseneck tube device for a cement processing preheater according to claim 1, characterized in that: The fixed cylinder (5) has a limiting groove (505) on its inner side, and the threaded cylinder (503) is fixedly connected to a limiting block (506), which is slidably connected in the limiting groove (505).

3. The gooseneck tube device for a cement processing preheater according to claim 1, characterized in that: The inverted V-frame (201) has sliding grooves (209) and rotating grooves (2010) on both sides of its surface. Two sliding rods (2011) are fixedly connected inside the sliding groove (209). A sliding plate (2012) is fixedly connected to the back of the slide plate (207). Two sliding cylinders (2013) are fixedly connected inside the sliding plate (2012). The sliding cylinders (2013) are slidably connected to the surface of the sliding rods (2011).

4. A gooseneck tube device for a cement processing preheater according to claim 1, characterized in that: The inverted V-frame (201) has a fixed shell (2016) fixedly connected to both sides inside, and a rotary motor (2017) is fixedly connected to the inner side of the fixed shell (2016).

5. A gooseneck tube device for a cement processing preheater according to claim 4, characterized in that: The output end of the rotary motor (2017) rotates through the inverted V-frame (201) and is fixedly connected to a rotating plate (2018). A cam (2019) is fixedly connected to the side of the rotating plate (2018). A contact plate (2014) is fixedly connected to the back of the slide plate (207). A contact pad (2015) is fixedly connected to the side of the contact plate (2014). The surface of the cam (2019) overlaps the surface of the contact pad (2015).

6. A gooseneck tube device for a cement processing preheater according to claim 1, characterized in that: The surface of the skateboard (207) is provided with multiple flow channels (2020).

7. A gooseneck tube device for a cement processing preheater according to claim 1, characterized in that: The inlet pipe (1) and the outlet pipe (3) are fixedly connected to a connecting pipe (4), and the top end of the connecting pipe (4) is fixedly connected to a horn pipe (401).

8. A gooseneck tube device for a cement processing preheater according to claim 1, characterized in that: The inverted V-tube (2) has a cleaning port (2022) at the top, and a top cover (6) is threaded to the top of the cleaning port (2022). An annular sealing strip (601) is fixedly connected to the top of the top cover (6).

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