Energy-saving resistance reducing device for cement kiln

Abstract

The utility model discloses a cement kiln energy -conserving resistance reduction device relates to novel dry process cement production technical field, the utility model discloses a bottom plate, the top outer wall fixedly connected with cement kiln of bottom plate is provided with the shunt pipe of inner wall of cement kiln, the utility model discloses a resistance plate, the resistance plate will gradually close at this moment to provide greater buffer space for high -speed airflow, avoid airflow direct impact pipe wall and produce additional resistance, and the exhaust gas flow rate is too slow then according to the operation reverse direction execution above, thereby narrowing the invalid space of airflow channel, reduce the hindering when airflow flow, through above -mentioned dynamic regulation, no matter exhaust gas is in what kind of flow rate, can obtain optimal flow channel, directly reduces the airflow resistance of whole preheater system, makes the energy consumption reduction of fan and other equipment of driving airflow flow, improves the preheating efficiency of exhaust gas to raw material simultaneously, realizes energy -conserving resistance reduction target finally, reduces the occupation space of airflow regulating device simultaneously, reduces maintenance cost.

Description

Technical Field

[0001] This utility model belongs to the field of new dry process cement production technology, and in particular relates to an energy-saving and resistance-reducing device for cement kilns. Background Technology

[0002] With the nation's increasing emphasis on production capacity control and environmental protection, energy conservation and consumption reduction have become important goals in the field of new dry-process cement production technology. Reducing the resistance of the kiln tail preheater system can reduce the operating load of high-temperature fans, effectively reducing their power consumption, while also facilitating system ventilation and tapping into production capacity potential.

[0003] The cement kiln energy-saving and resistance-reducing device is mainly used to reduce the resistance of the cement kiln system, improve energy utilization efficiency, reduce energy consumption and operating costs, and at the same time improve the quality and stability of cement production.

[0004] The high resistance of cement kiln systems leads to higher energy consumption for equipment such as high-temperature fans to drive airflow. However, the drive mechanism of traditional airflow regulating devices is a complex combination of motor, gears, and connecting rods, which not only occupies a lot of space, but also easily causes gear jamming and connecting rod corrosion in the high-temperature environment of cement kilns, resulting in high maintenance costs. Therefore, we propose an energy-saving and resistance-reducing device for cement kilns. Utility Model Content

[0005] The purpose of this utility model is to provide an energy-saving and resistance-reducing device for cement kilns. Through the resistance-reducing mechanism and the protection mechanism, it solves the problem that the high resistance of the cement kiln system leads to the need for more electrical energy to drive the airflow of equipment such as high-temperature fans. However, the drive mechanism of traditional airflow regulating devices is mostly a complex combination of motor, gear, and connecting rod, which not only occupies a lot of space, but also easily causes gear jamming and connecting rod corrosion in the high-temperature environment of cement kilns, resulting in high maintenance costs.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is an energy-saving and resistance-reducing device for cement kilns, including a base plate, a cement kiln fixedly connected to the top outer wall of the base plate, a diversion pipe provided on the inner wall of the cement kiln, and a resistance-reducing mechanism provided on the outer wall of the diversion pipe.

[0008] The drag-reducing mechanism includes a fixed frame, the bottom outer wall of which is fixedly connected to the outer wall of the diversion pipe. The inner wall of the fixed frame has several grooves, and sliders are slidably connected to the inner walls of each groove. The inner walls of the sliders have grooves and arc-shaped slots. A flow-blocking plate is rotatably connected to the inner wall of the diversion pipe. The outer wall of the flow-blocking plate contacts the inner wall of the grooves. A fixed plate is fixedly connected to the top outer wall of the flow-blocking plate, and a connecting shaft is fixedly connected to the bottom outer wall of the fixed plate. A protective mechanism is provided on the outer wall of the cement kiln.

[0009] Furthermore, the outer wall of the connecting shaft is slidably connected to the inner wall of the arc-shaped groove, and an electric push rod is fixedly connected to the inner wall of the fixed frame. The bottom output end of the electric push rod is fixedly connected to the outer wall of the slider.

[0010] Furthermore, the protective mechanism includes a support box, the outer wall of which is fixedly connected to the outer wall of the base plate, and the inner wall of the support box is provided with a second sliding groove, the inner wall of which is fixedly connected to a fixed shaft.

[0011] Furthermore, a damping spring is sleeved on the outer wall of the fixed shaft, and several sliding blocks are slidably connected to the outer wall of the fixed shaft.

[0012] Furthermore, a connecting rod is rotatably connected to the outer wall of the sliding block, and a contact plate is rotatably connected to the inner wall of the end of the connecting rod away from the sliding block.

[0013] Furthermore, the outer wall of the contact plate is fixedly connected to the outer wall of the diversion pipe, and a sleeve is fixedly connected to the outer wall of the support box.

[0014] Furthermore, a positioning shaft is fixedly connected to the inner wall of the sleeve, and a damping spring is sleeved on the outer wall of the positioning shaft.

[0015] Furthermore, a hollow slide rod is slidably connected to the outer wall of the positioning shaft, and the top outer wall of the hollow slide rod is fixedly connected to the bottom outer wall of the contact plate.

[0016] This utility model has the following beneficial effects:

[0017] 1. This utility model incorporates a baffle plate that gradually closes, providing a larger buffer space for high-speed airflow and preventing the airflow from directly impacting the pipe wall and generating additional resistance. When the exhaust gas flow rate is too slow, the operation is reversed, thereby reducing the ineffective space of the airflow channel and minimizing airflow obstruction. Through this dynamic adjustment, an optimal flow channel can be obtained regardless of the exhaust gas flow rate. This directly reduces the airflow resistance of the entire preheater system, reduces the energy consumption of equipment such as fans that drive the airflow, and improves the preheating efficiency of the exhaust gas on the raw materials, ultimately achieving the goal of energy saving and resistance reduction. At the same time, it reduces the space occupied by the airflow adjustment device and lowers maintenance costs.

[0018] 2. This utility model incorporates a hollow slide bar. When subjected to vibration, the hollow slide bar will move downwards and slide on the positioning shaft. During this sliding motion, it will compress the second damping spring. When the second damping spring and the damping spring are compressed, they will undergo elastic deformation and absorb vibration energy, converting the mechanical energy of the vibration into the elastic potential energy of the spring. The energy is then released through the slow reset of the spring, ultimately weakening the transmission of vibration and achieving a vibration reduction effect. This protects the shunt pipe and its internal core components, reduces mechanical damage, and prevents fatigue cracks in the shunt pipe body due to high-frequency vibration.

[0019] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0020] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a cross-sectional view of the overall structure of this utility model;

[0023] Figure 3 This is a cross-sectional view of the flow-blocking plate structure of this utility model;

[0024] Figure 4 This is a cross-sectional view of the contact plate structure of this utility model;

[0025] Figure 5 This utility model Figure 4 Enlarged view of point A in the middle.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Base plate; 101. Cement kiln; 102. Diverter pipe; 2. Resistance reduction mechanism; 201. Fixed frame; 202. Slide groove; 203. Slider; 204. Groove; 205. Arc groove; 206. Baffle plate; 207. Fixed plate; 208. Connecting shaft; 209. Electric actuator; 3. Protective mechanism; 301. Support box; 302. Slide groove II; 303. Fixed shaft; 304. Damping spring; 305. Sliding block; 306. Connecting rod; 307. Contact plate; 308. Sleeve; 309. Positioning shaft; 310. Damping spring II; 311. Hollow slide rod. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-5 As shown, this utility model is an energy-saving and resistance-reducing device for cement kilns, including a base plate 1. A cement kiln 101 is fixedly connected to the top outer wall of the base plate 1. A diversion pipe 102 is provided on the inner wall of the cement kiln 101. The diversion pipe 102 is the core component of the device that receives airflow, diverts and guides high-temperature exhaust gas, and realizes diversion adjustment and resistance control. A resistance-reducing mechanism 2 is provided on the outer wall of the diversion pipe 102.

[0030] The drag-reducing mechanism 2 includes a fixed frame 201. The bottom outer wall of the fixed frame 201 is fixedly connected to the outer wall of the diversion pipe 102. By fixing the frame 201 to the diversion pipe 102, it can support and limit the subsequent parts. The inner wall of the fixed frame 201 is provided with several sliding grooves 202. Each sliding groove 202 has a slider 203 slidably connected to its inner wall. When the slider 203 is subjected to force, it will slide in the sliding grooves 202 in the fixed frame 201. At this time, the sliding grooves 202 act as a support for the slider 203. 03 Limiting effect: The inner wall of slider 203 has a groove 204 and an arc groove 205. The purpose of the groove 204 and the arc groove 205 is to limit the movement of subsequent parts. The inner wall of the diversion pipe 102 is rotatably connected to a baffle plate 206. The outer wall of the baffle plate 206 contacts the inner wall of the groove 204. By adjusting the angle of the baffle plate 206, the effect of reducing the exhaust gas is achieved. The top outer wall of the baffle plate 206 is fixedly connected to a fixing plate 207.

[0031] A connecting shaft 208 is fixedly connected to the bottom outer wall of the fixed plate 207. When the slider 203 moves, the connecting shaft 208 slides along its own shape through the arc groove 205. The outer wall of the connecting shaft 208 is slidably connected to the inner wall of the arc groove 205. An electric push rod 209 is fixedly connected to the inner wall of the fixed frame 201. The bottom output end of the electric push rod 209 is fixedly connected to the outer wall of the slider 203. By activating the electric push rod 209, the slider 203 is driven to slide in the fixed frame 201, thereby enabling it to drive the above-mentioned parts to move along the same trajectory. A protective mechanism 3 is provided on the outer wall of the cement kiln 101.

[0032] The protective mechanism 3 includes a support box 301. The outer wall of the support box 301 is fixedly connected to the outer wall of the base plate 1. By setting the support box 301, it can support and limit the subsequent parts. The inner wall of the support box 301 is provided with a second sliding groove 302. A fixed shaft 303 is fixedly connected to the inner wall of the second sliding groove 302. A damping spring 304 is sleeved on the outer wall of the fixed shaft 303. By compressing the damping spring 304, it deforms and absorbs the transmitted vibration. Several sliding blocks 305 are slidably connected to the outer wall of the fixed shaft 303. A connecting rod 306 is rotatably connected to the outer wall of the sliding block 305. A contact plate 307 is rotatably connected to the inner wall of the end of the connecting rod 306 away from the sliding block 305. When the contact plate 307 transmits the vibration downward, it will drive the connecting rod 306 to rotate on the sliding block 305. After rotating a certain angle, it will drive the sliding block 305 to slide on the fixed shaft 303 and compress the damping spring 304.

[0033] The outer wall of the contact plate 307 is fixedly connected to the outer wall of the diversion pipe 102. The outer wall of the support box 301 is fixedly connected to the sleeve 308. By setting some parts inside the sleeve 308, it can cooperate with the above-mentioned parts to enhance the vibration reduction effect. The inner wall of the sleeve 308 is fixedly connected to the positioning shaft 309. The outer wall of the positioning shaft 309 is fitted with a second damping spring 310. The outer wall of the positioning shaft 309 is slidably connected to a hollow slide rod 311. The top outer wall of the hollow slide rod 311 is fixedly connected to the bottom outer wall of the contact plate 307. When the hollow slide rod 311 is squeezed, it will slide on the positioning shaft 309. At the same time as sliding, it will squeeze the second damping spring 310. At this time, the function of the second damping spring 310 is the same as that of the damping spring 304, which is to absorb the impact force generated by vibration and reduce it.

[0034] One specific application of this embodiment is:

[0035] When the equipment is needed, the cement kiln 101 first determines the resistance of the airflow based on the actual flow rate of the high-temperature exhaust gas in the preheater system. If the exhaust gas flow rate is too high, the electric actuator 209 is activated. Once activated, the electric actuator 209 moves the slider 203 within the groove 202 of the fixed frame 201. As the slider 203 moves, it drives the connecting shaft 208 to slide within the arc-shaped groove 205, following its own shape. The sliding of the connecting shaft 208, in turn, drives the flow-blocking plate 206 via the fixed plate 207. The flow divider 102 rotates, and the baffle 206 rotates at an angle determined by feedback from the device. The baffle 206 gradually closes, providing a larger buffer space for the high-speed airflow and preventing it from directly impacting the pipe wall and generating additional resistance. When the exhaust gas velocity is too slow, the operation is reversed, reducing the ineffective space in the airflow channel and minimizing airflow obstruction. Through this dynamic adjustment, an optimal flow channel can be achieved regardless of the exhaust gas velocity, directly reducing the overall preheater system's performance. The system reduces airflow resistance, thereby reducing the energy consumption of equipment such as fans that drive the airflow, while improving the preheating efficiency of waste gas on raw materials, ultimately achieving energy-saving goals. When waste gas passes through the diversion pipe 102, the turbulence of the high-temperature waste gas will cause the pipe to vibrate. After the diversion pipe 102 vibrates, it will transmit the vibration to the connecting rod 306 through the contact plate 307. When the connecting rod 306 is vibrated, it will be forced to move downward. During the movement, one end of the connecting rod 306 will rotate on the sliding block 305. When rotating, it will drive the sliding block 305 to slide on the fixed shaft 303. During the sliding, it will resist the resistance. When the damping spring 304 is compressed, the vibration is also transmitted downwards to the hollow slide bar 311. The hollow slide bar 311 is also affected by the vibration and moves downwards. At this time, the hollow slide bar 311 slides on the positioning shaft 309. When sliding, it compresses the second damping spring 310. When the second damping spring 310 and the damping spring 304 are compressed, they will undergo elastic deformation and absorb the vibration energy, converting the mechanical energy of the vibration into the elastic potential energy of the spring. Then, the energy is released through the slow reset of the spring, which ultimately weakens the transmission of vibration and achieves the vibration reduction effect.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A cement kiln energy-saving and resistance-reducing device, comprising a bottom plate (1), characterized in that: A cement kiln (101) is fixedly connected to the top outer wall of the base plate (1), and a diversion pipe (102) is provided on the inner wall of the cement kiln (101). A resistance reduction mechanism (2) is provided on the outer wall of the diversion pipe (102). The drag reduction mechanism (2) includes a fixed frame (201), the bottom outer wall of the fixed frame (201) is fixedly connected to the outer wall of the diversion pipe (102), the inner wall of the fixed frame (201) is provided with a plurality of sliding grooves (202), the inner walls of the plurality of sliding grooves (202) are slidably connected with sliders (203), the inner walls of the sliders (203) are provided with grooves (204), the inner walls of the sliders (203) are provided with arc grooves (205), the inner walls of the diversion pipe (102) are rotatably connected with a flow-blocking plate (206), the outer wall of the flow-blocking plate (206) is in contact with the inner wall of the groove (204), the top outer wall of the flow-blocking plate (206) is fixedly connected with a fixed plate (207), the bottom outer wall of the fixed plate (207) is fixedly connected with a connecting shaft (208), and the outer wall of the cement kiln (101) is provided with a protective mechanism (3).

2. The energy-saving and resistance-reducing device for a cement kiln according to claim 1, characterized in that, The outer wall of the connecting shaft (208) is slidably connected to the inner wall of the arc groove (205), and the inner wall of the fixed frame (201) is fixedly connected to the electric push rod (209). The bottom output end of the electric push rod (209) is fixedly connected to the outer wall of the slider (203).

3. The energy-saving and resistance-reducing device for a cement kiln according to claim 2, characterized in that, The protective mechanism (3) includes a support box (301), the outer wall of the support box (301) is fixedly connected to the outer wall of the base plate (1), and the inner wall of the support box (301) is provided with a second sliding groove (302), and a fixed shaft (303) is fixedly connected to the inner wall of the second sliding groove (302).

4. The energy-saving and resistance-reducing device for a cement kiln according to claim 3, characterized in that, The outer wall of the fixed shaft (303) is fitted with a damping spring (304), and a plurality of sliding blocks (305) are slidably connected to the outer wall of the fixed shaft (303).

5. The energy-saving and resistance-reducing device for a cement kiln according to claim 4, characterized in that, The outer wall of the sliding block (305) is rotatably connected to a connecting rod (306), and the inner wall of the connecting rod (306) away from the sliding block (305) is rotatably connected to a contact plate (307).

6. The energy-saving and resistance-reducing device for a cement kiln according to claim 5, characterized in that, The outer wall of the contact plate (307) is fixedly connected to the outer wall of the diversion pipe (102), and the outer wall of the support box (301) is fixedly connected to the sleeve (308).

7. The energy-saving and resistance-reducing device for a cement kiln according to claim 6, characterized in that, The inner wall of the sleeve (308) is fixedly connected to a positioning shaft (309), and a damping spring (310) is sleeved on the outer wall of the positioning shaft (309).

8. The energy-saving and resistance-reducing device for a cement kiln according to claim 7, characterized in that, A hollow slide rod (311) is slidably connected to the outer wall of the positioning shaft (309), and the top outer wall of the hollow slide rod (311) is fixedly connected to the bottom outer wall of the contact plate (307).

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