Intelligent anti-blocking device for discharge port of coking coal blending bunker

Abstract

The utility model relates to an intelligent anti-blocking device for a discharge port of a coking coal blending bunker, which aims to solve the technical problem of clean coal blocking of the discharge port of the coal blending bunker, and adopts the technical scheme that a coal blending bunker steel cone section is arranged at the discharge port of the coal blending bunker, four driving devices are arranged on the outer side wall of the upper part, and a vertical transmission shaft is arranged in the middle; the driving device is meshed with the vertical transmission shaft through the horizontal transmission shaft and the bevel gear, a dynamic torque detection system is arranged at the upper end of the vertical transmission shaft, and a temperature sensor is arranged on the bearing and is controlled by an electric control system. And the driving device drives the transmission shaft and the stirring rods to crush the cleaned coal, so that the cleaned coal is in a loose state, the problem of unsmooth discharging of the cleaned coal bin opening which puzzles field operation for a long time is effectively solved, and meanwhile, the overall fluidity of the interior of the cleaned coal is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of coal bunker discharge port equipment in coking, coal, electric power and metallurgical projects, and specifically relates to an intelligent anti-blocking device for a coking coal bunker discharge port. Background Art

[0002] During operation, the discharge port of the washed clean coal bunker in the coking plant often experiences bridging, arching, sticking to the bunker wall and coal breaking. Especially in the rainy season, when the moisture content of the coal increases, the viscosity of the coal particles also increases. The blocked discharge port of the washed clean coal bunker will cause the coal discharge on the downstream batching scale to fluctuate greatly, which in turn leads to unstable quality of the finished coking product. In some factories, 2 to 3 coal bunkers are blocked at the same time during the rainy season. The coking coal preparation system is forced to stop for manual unblocking, and even the washed clean coal in the coking coal tower has reached a low level alarm. The coal preparation system cannot operate normally because the blockage of the washed clean coal bunker port has not been resolved. At present, most of the clean coal bunkers in domestic coking plants are equipped with air cannons, scraper-type clearing machines, bunker wall vibrators and other clearing devices, but the effect is not ideal, especially when the clean coal has high moisture content and strong viscosity. The effect is even worse. Sometimes, the clean coal bunker discharge port can only be cleared by manual knocking and coal digging, which not only takes a long time to clear, but also affects the normal operation of coal blending, and unplanned extension of the coking time of the coke oven. Utility Model Content

[0003] The utility model aims to solve the above problems and provide an intelligent anti-blocking device for a discharge port of a coking coal bunker.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] An intelligent anti-blocking device for a discharge port of a coking coal bunker comprises a plurality of drive devices, a dynamic torque detection system, a plurality of horizontal transmission shafts, a vertical transmission shaft, a plurality of stirring rods, a fixed frame, a steel cone section of a coal bunker, a plurality of fixed platforms and an electric control system;

[0006] The steel cone section of the coal distribution bin is a conical cylindrical structure with a thick top and a thin bottom, which is installed at the discharge port of the clean coal bin. The fixed frame includes a plurality of support rods, one end of each of which is evenly fixed around the bottom of the inner side wall of the steel cone section of the coal distribution bin, and the other end of each of the support rods is connected to the lower end of the vertical transmission shaft through a bearing, and a temperature sensor is provided on the bearing. The vertical transmission shaft is vertically located in the middle of the steel cone section of the coal distribution bin. The plurality of fixed platforms are evenly fixed at the same height on the upper part of the outer side wall of the steel cone section of the coal distribution bin. The plurality of driving devices are respectively fixed on the top surface of each fixed platform. One end of each of the horizontal transmission shafts passes through the side wall of the steel cone section of the coal distribution bin and is respectively connected to the output shaft of each driving device. The other end of each of the horizontal transmission shafts is meshed with the upper end of the vertical transmission shaft through a bevel gear. The dynamic torque detection system is arranged on the top surface of the vertical transmission shaft. The plurality of stirring rods are grouped into a plurality of groups of three, and are evenly fixed on the vertical transmission shaft in the vertical direction, and the angles between the stirring rods in each group are the same.

[0007] The electric control system is electrically connected to the driving device, the dynamic torque detection system and the temperature sensor respectively.

[0008] Furthermore, the dynamic torque detection system includes a torque sensor and a signal processing unit. The torque sensor monitors the torque parameters of the vertical transmission shaft in real time. The torque parameter data collected by the torque sensor is transmitted to the signal processing unit for processing and then converted into a digital signal and transmitted to the electronic control system.

[0009] Furthermore, the number of the driving device, the fixed platform and the horizontal transmission shaft is 2-6.

[0010] Furthermore, a protective sleeve is provided on the outer wall of the horizontal transmission shaft.

[0011] Furthermore, a central transmission device box is provided on the upper part of the vertical transmission shaft, and the central transmission device box is connected to the warehouse wall through the protective cover of the horizontal transmission shaft. The dynamic torque detection system and the bevel gear are located in the central transmission device box.

[0012] Furthermore, a protective cover is provided at the upper end of the central transmission device box. The protective cover is a conical structure and is made of high manganese alloy steel.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model provides a coal bunker steel cone section at the coal bunker discharge port, and drives the transmission shaft and stirring rod through the driving device to break the clean coal into a loose state, effectively solving the problem of unsmooth discharge of the clean coal bunker port that has long plagued on-site operation, and at the same time improves the overall fluidity of the clean coal inside;

[0015] 2. The utility model monitors the running state of the vertical transmission shaft in real time through the dynamic torque detection system and the temperature sensor, and automatically controls its opening and closing through the electric control system, which can realize the automation of clean coal mixing, improve production efficiency, and reduce the work intensity of workers;

[0016] 3. The utility model can effectively improve the safety of the operation of the device by real-time monitoring of operating parameters and controlling the operation of the device through the electric control system, and provide a reliable guarantee for the long-term safe and stable operation of the coal bunker; BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 for Figure 1 A-direction structural schematic diagram;

[0019] Figure 3 for Figure 1 BB cross-section diagram;

[0020] Figure 4 for Figure 1 Schematic diagram of CC cross section;

[0021] Figure 5 This is a schematic diagram of the electric control system panel of the utility model;

[0022] In the figure: 1. driving device; 2. protective cover; 3. dynamic torque detection system; 4. central transmission device box; 5. horizontal transmission shaft; 6. protective cover; 7. vertical transmission shaft; 8. stirring rod; 9. fixed frame; 10. steel cone section of coal bunker; 11. conveyor belt; 12. electronic control system panel; 13. fixed platform. DETAILED DESCRIPTION

[0023] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0024] like Figure 1-5 As shown, an intelligent anti-blocking device for a discharge port of a coking coal bunker comprises four driving devices 1, a dynamic torque detection system 3, four horizontal transmission shafts 5, a vertical transmission shaft 7, twelve stirring rods 8, a fixing frame 9, a steel cone section 10 of a coal bunker, four fixing platforms 13 and an electric control system;

[0025] The coal bunker steel cone section 10 is a conical cylindrical structure with a thick top and a thin bottom, which is installed at the discharge port of the clean coal bunker. The fixed frame 9 includes three support rods, one end of which is evenly fixed around the bottom of the inner side wall of the coal bunker steel cone section 10, and the other end of the support rod is connected to the lower end of the vertical transmission shaft 7 through a bearing. A temperature sensor is provided on the bearing, and the temperature sensor is electrically connected to the electric control system. The vertical transmission shaft 7 is vertically located in the middle of the coal bunker steel cone section 10. The four fixed platforms 13 are evenly fixed at the same height on the upper part of the outer side wall of the coal bunker steel cone section 10. The four driving devices 1 are respectively fixed on the top surface of each fixed platform 13, which is convenient for the later inspection, maintenance and replacement of the driving device 1. The setting of the four driving devices 1 can overcome the friction and resistance between the stirring rod and different types of coal, and the transmission margin is reserved. The four groups of driving equipment can be opened at the same time or two groups can be opened. One end of the four horizontal transmission shafts 5 passes through the side wall of the coal bunker steel cone section 10 and is respectively connected to the output shaft of each driving device 1. The other ends of the four horizontal transmission shafts 5 are meshed with the upper end of the vertical transmission shaft 7 through bevel gears, and the outer wall of the horizontal transmission shaft 5 is provided with a protective sleeve 6 to prevent the clean coal slurry from corroding the horizontal transmission shaft 5. The dynamic torque detection system 3 is arranged on the top surface of the vertical transmission shaft 7, and a central transmission device box 4 is provided on the upper part of the vertical transmission shaft 7. The central transmission device box 4 is connected to the warehouse wall through the protective sleeve 6 of the horizontal transmission shaft 5. The dynamic torque detection system 3 and the bevel gear are located in the central transmission device box 4. The upper end of the central transmission device box 4 is provided with a conical protective cover 2 made of high manganese alloy steel. The dynamic torque detection system 3 and the bevel gear are located in the central transmission device box 4. The central transmission device box 4 and the protective cover 2 can reduce the pressure of the clean coal in the warehouse on the transmission bevel gear, so that it can be effectively protected. The twelve stirring rods 8 are divided into four groups of three, and are evenly fixed on the vertical transmission shaft 7 in the vertical direction. The length of the stirring rods is shortened from top to bottom according to the structure of the steel cone section 10 of the coal bunker.

[0026] The electronic control system is electrically connected to the drive device 1, the dynamic torque detection system 3, and the temperature sensor respectively. The dynamic torque detection system 3 includes a torque sensor and a signal processing unit. The torque sensor monitors the torque parameters of the vertical transmission shaft 7 in real time. The torque parameter data collected by the torque sensor is transmitted to the signal processing unit for processing and converted into a digital signal, which is then transmitted to the electronic control system. The electronic control system can be reprogrammed at a later stage. According to the equipment operating parameters and accumulated operating data continuously summarized during production, the equipment is finally optimized through secondary programming to achieve the best operating state, ensuring that the clean coal bin discharge port can discharge materials stably, continuously and smoothly.

[0027] The number of the driving device 1, the fixed platform 13 and the horizontal transmission shaft 5 can also be any value between 2 and 6.

[0028] The working process of this utility model:

[0029] When the utility model is used, firstly, the torque parameter and the bearing temperature in the electric control system are preset in the numerical range, and then the driving device 1 and the dynamic torque detection system 3 are started by the button on the electric control system panel 12, the output shaft of the driving device 1 drives the horizontal transmission shaft 5 to rotate, and drives the vertical transmission shaft 7 and the stirring rod 8 to rotate through the bevel gear, and the clean coal with high viscosity falls from the discharge port of the coal batching bin into the steel cone section 10 of the coal batching bin, and after repeated stirring by four groups of stirring rods 8, the clean coal with high viscosity is kept in a loose state, falls from the bottom of the steel cone section 10 of the coal batching bin, and falls on the conveyor belt 11, and the electronic batching scale on the conveyor belt 11 weighs the clean coal in real time;

[0030] In the process of stirring the clean coal, the vertical transmission shaft 7 rotates and is subjected to a large torque, and the vertical transmission shaft 7 and the bearings connected to the fixed frame 9 move relative to each other, causing the bearing temperature to rise. Therefore, in the process of stirring the clean coal, the torque sensor of the dynamic torque detection system 3 monitors and collects the torque parameters of the vertical transmission shaft 7 in real time, transmits them to the signal processing unit for processing, converts them into digital signals and transmits them to the electronic control system. The temperature sensor monitors and collects the temperature data of the bearing in real time and transmits them to the electronic control system. When the torque parameter of the vertical transmission shaft 7 reaches or approaches the upper / lower limit of the preset numerical range, the electronic control system controls and adjusts the output torque, motor speed and running number of the drive device 1, so that the torque parameter is adjusted to a normal preset vertical range; when the torque parameter exceeds the maximum value of the preset numerical range, the electronic control system controls the drive device 1 to shut down, so that the drive device 1 and the vertical transmission shaft 7 of the utility model are effectively protected;

[0031] When the bearing temperature exceeds the maximum value of the set range, the electronic control system controls the drive device 1 to shut down and the equipment stops running. When the temperature drops to a normal range, the electronic control system controls the drive device 1 to start.

Claims

1. An intelligent anti-blocking device for the discharge port of a coking coal bunker, characterized in that: It comprises a plurality of drive devices (1), a dynamic torque detection system (3), a plurality of horizontal transmission shafts (5), a vertical transmission shaft (7), a plurality of stirring rods (8), a fixed frame (9), a coal bunker steel cone section (10), a plurality of fixed platforms (13) and an electric control system; The coal bunker steel cone section (10) is a conical cylindrical structure with a thick top and a thin bottom, and is installed at the discharge port of the clean coal bunker. The fixed frame (9) comprises a plurality of support rods, one end of each of which is evenly fixed around the bottom of the inner side wall of the coal bunker steel cone section (10), and the other end of each of which is connected to the lower end of the vertical transmission shaft (7) through a bearing, and a temperature sensor is provided on the bearing. The vertical transmission shaft (7) is vertically located in the middle of the coal bunker steel cone section (10). The plurality of fixed platforms (13) are evenly fixed at the same height on the upper part of the outer side wall of the coal bunker steel cone section (10). The plurality of drive devices (13) are connected to the lower end of the vertical transmission shaft (7) through a bearing. The plurality of horizontal transmission shafts (1) are respectively fixed on the top surface of each fixed platform (13), one end of the plurality of horizontal transmission shafts (5) passes through the side wall of the coal distribution bin steel cone section (10) and is respectively connected to the output shaft of each driving device (1), the other end of the plurality of horizontal transmission shafts (5) is meshed with the upper end of the vertical transmission shaft (7) through a bevel gear, the dynamic torque detection system (3) is arranged on the top surface of the vertical transmission shaft (7), the plurality of stirring rods (8) are grouped in groups of three, divided into a plurality of groups, and are evenly fixed on the vertical transmission shaft (7) in the vertical direction, and the angles between the stirring rods (8) in each group are the same; The electric control system is electrically connected to the drive device (1), the dynamic torque detection system (3), and the temperature sensor respectively.

2. The intelligent anti-blocking device for the discharge port of the coking coal bunker according to claim 1 is characterized in that: The dynamic torque detection system (3) comprises a torque sensor and a signal processing unit. The torque sensor monitors the torque parameters of the vertical transmission shaft (7) in real time. The torque parameter data collected by the torque sensor is transmitted to the signal processing unit for processing and then converted into a digital signal, which is then transmitted to the electronic control system.

3. The intelligent anti-blocking device for the discharge port of the coking coal bunker according to claim 1 is characterized in that: The number of the driving device (1), the fixed platform (13) and the horizontal transmission shaft (5) is 2-6.

4. The intelligent anti-blocking device for the discharge port of the coking coal bunker according to claim 1, characterized in that: The outer wall of the horizontal transmission shaft (5) is provided with a protective sleeve (6).

5. The intelligent anti-blocking device for the discharge port of the coking coal bunker according to claim 4, characterized in that: A central transmission device box (4) is provided on the upper part of the vertical transmission shaft (7); the central transmission device box (4) is connected to the warehouse wall via a protective sleeve (6) of the horizontal transmission shaft (5); and the dynamic torque detection system (3) and the bevel gear are located inside the central transmission device box (4).

6. The intelligent anti-blocking device for the discharge port of the coking coal bunker according to claim 5, characterized in that: A protective cover (2) is provided at the upper end of the central transmission device box (4); the protective cover (2) is a conical structure and is made of high manganese alloy steel.

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