Large-handling-capacity horizontal scraper discharging centrifugal machine and using method thereof

Abstract

The invention discloses a large-handling-capacity horizontal scraper discharging centrifugal machine and a using method thereof. A driving motor included in the large-handling-capacity horizontal scraper discharging centrifugal machine provides power for the centrifugal machine, and the driving motor comprises a stator and a rotor; the transmission device realizes stable and efficient transmission of power of the driving motor, and adopts a herringbone toothed belt wheel to provide large torque output; the screen basket is used for centrifugally separating materials, and solid-liquid separation of the materials is achieved through centrifugal force generated by rotating the screen basket at a high speed; the scraper adopts a small-lead spiral blade design, and the small-lead spiral blade enables the scraper to scrape materials on the inner wall of the screen basket when the scraper rotates along with the screen basket; a feeding pipe of the feeding system is a circular pipeline, the inlet end of the feeding pipe is connected with the material conveying pipeline, and the outlet end of the feeding pipe is arranged on one side of the screening basket in the tangential direction. According to the centrifugal machine, the problems of processing capacity, transmission stability, feeding mode, maintenance convenience, part protection, environmental adaptability and the like of vertical and horizontal centrifugal machines in the prior art are solved.

Description

Technical Field

[0001] The invention belongs to the technical field of centrifugal separation, and in particular relates to a horizontal scraper unloading centrifuge with a large processing capacity and a use method thereof. Background Art

[0002] In coal washing and many other industrial fields involving solid-liquid separation, centrifuge is one of the key equipment. With the continuous expansion of industrial scale and the continuous improvement of production efficiency requirements, more stringent challenges have been posed to the centrifuge in terms of processing capacity, separation effect, stability and maintenance convenience.

[0003] The traditional vertical centrifuge has a relatively compact structure and is applicable to some small production scenarios or occasions with high space requirements, but it has an obvious shortcoming of limited processing capacity. Its internal structure layout makes the material flow space smaller during the centrifugal process, which is difficult to adapt to the needs of large-scale material processing. In addition, the maintenance operation of the vertical centrifuge is often more complicated. Due to its structural characteristics, when inspecting or replacing key components such as the drum and scraper, it is necessary to remove more auxiliary components, which not only consumes a lot of time, but also increases maintenance costs and equipment downtime, which has a great impact on production continuity.

[0004] Compared with vertical centrifuges, horizontal centrifuges have room for improvement in processing capacity. However, they also have many problems. In terms of transmission, traditional horizontal centrifuges often use ordinary gear transmission or simple belt transmission. Ordinary gear transmission is prone to produce large vibrations and noise when running at high speeds, which will not only affect the stability of the equipment, but also reduce the service life of the equipment and increase the frequency and cost of equipment maintenance. Although simple belt transmission is relatively stable, its transmission efficiency is low and cannot meet the requirements for efficient power transmission under large processing capacity conditions. It is easy to cause energy waste, and during long-term operation, the belt is prone to slippage, wear and other problems, and needs to be replaced frequently, affecting the normal operation of the equipment.

[0005] In terms of feeding method, some old horizontal centrifuges use direct impact feeding, and the material directly rushes to the screen basket without buffering or guiding. This feeding method will cause the screen basket and scraper to bear greater impact force, resulting in increased wear of these key components and shortening the overall service life of the equipment. At the same time, due to the uneven impact of the material, it may also affect the distribution of the material in the screen basket, thereby reducing the separation effect and making the product quality unstable.

[0006] In addition, the structural design of traditional horizontal centrifuges does not take into account the ease of maintenance. For example, the installation method of the screen basket is often cumbersome. When the screen basket needs to be replaced, it is necessary to use special tools and spend a long time to disassemble the scraper body before the screen basket can be disassembled and installed, which undoubtedly increases the maintenance time and cost of the equipment. The connection method between other parts of the equipment, such as the front door, feed pipe, filtrate discharge box, etc. is also relatively complicated. When one of the parts fails, the maintenance process may involve the disassembly and reinstallation of multiple parts, further reducing the availability and maintenance efficiency of the equipment.

[0007] Traditional centrifuges also have defects in terms of equipment protection and adaptability. The parts that come into contact with materials, such as the feed pipe, discharge box, and scraper body, lack effective wear-resistant protection measures. When handling materials containing hard particles or high corrosiveness for a long time, the surface of the parts is easily worn or corroded, thus affecting the performance and service life of the equipment. In addition, the lubrication system of traditional centrifuges has a single function and cannot adapt to working requirements under different ambient temperatures. In a high temperature environment, the lubricating oil may deteriorate due to excessive temperature and lose its lubricating effect, resulting in increased friction between equipment parts and even jamming; in a low temperature environment, the viscosity of the lubricating oil increases and the fluidity deteriorates, which also fails to provide good lubrication for the equipment, affecting the startup and normal operation of the equipment. Summary of the invention

[0008] Based on the technical problems existing in the prior art, the present invention provides a horizontal scraper unloading centrifuge with a large processing capacity and a method for using the same, which solves the problems of the vertical and horizontal centrifuges in the prior art solutions in terms of processing capacity, transmission stability, feeding method, maintenance convenience, component protection and environmental adaptability.

[0009] According to the first aspect of the technical solution of the present invention, the present invention provides a horizontal scraper unloading centrifuge with a large processing capacity, which includes a drive motor, a transmission device, a screen basket, a scraper, a feeding system and a unloading system; the drive motor provides power for the centrifuge, and the drive motor includes a stator and a rotor; the transmission device realizes the smooth and efficient transmission of the power of the drive motor, and the transmission device adopts a herringbone toothed pulley to provide a large torque output; the screen basket is used for centrifugal separation of materials, and the solid-liquid separation of the materials is realized by the centrifugal force generated by the high-speed rotating screen basket; the scraper adopts a small-pitch spiral blade design, and the small-pitch spiral blade enables the scraper to scrape the material on the inner wall of the screen basket as the screen basket rotates; the feeding pipe of the feeding system is a circular pipe, the inlet end of which is connected to the material conveying pipe, and the outlet end is arranged in a tangential direction on one side of the screen basket; the unloading system is located below the unloading port of the screen basket, receives the filter cake scraped by the scraper and guides the filter cake to be discharged.

[0010] Preferably, the transmission device further includes a belt and a tensioner; the drive motor is tightly connected to the input shaft of the transmission device through a coupling to transmit the power generated by the motor to the transmission system.

[0011] Preferably, it further comprises a horizontal scraper unloading centrifuge chassis, a lubrication system and an intelligent monitoring system; the horizontal scraper unloading centrifuge chassis is welded from high-strength steel; the lubrication system comprises a lubrication pump, a main oil pipe, a branch oil pipe, an oil nozzle, a cooling device, a heating device, a temperature sensor and a pressure sensor;

[0012] The cooling device and the heating device are respectively connected to the corresponding interfaces of the lubrication system, and the temperature sensor and the pressure sensor are connected to the intelligent monitoring system through signal lines; the lubrication pump is installed on the upper part of the oil tank, the main oil pipe is arranged between the oil tank, the lubrication pump, the cooling device and the heating device, N branch oil pipes are installed in the centrifuge, the oil inlet of the branch oil pipe is connected to the main oil pipe, and the end of the branch oil pipe is provided with an oil nozzle; the intelligent monitoring system includes multiple sensors, a data acquisition module, a controller and a human-machine interface.

[0013] Preferably, sensors are distributed on the centrifuge drive motor, transmission device, and screen basket to collect the operating parameters of the equipment in real time; the data acquisition module, controller, and human-machine interface are installed in the control cabinet of the horizontal scraper unloading centrifuge; the sensors collect the operating parameters of the equipment in real time, and convert the collected analog signals into digital signals and transmit them to the data acquisition module, the data acquisition module organizes and preliminarily processes the digital signals and then transmits them to the controller in the control cabinet, the controller analyzes and judges the data according to preset thresholds and algorithms, and when an abnormal situation is detected, an alarm signal is immediately issued, and the fault information is transmitted to the human-machine interface for display, and corresponding protective measures can be taken at the same time.

[0014] Preferably, the transmission device is located between the drive motor and the centrifuge main shaft, and is arranged above the bottom frame of the horizontal scraper discharge centrifuge.

[0015] Preferably, the screen basket is conical in shape, and its cylinder wall is covered with evenly distributed screen slots, and the size of the screen slots is determined according to the characteristics of the material and the separation requirements.

[0016] Preferably, the screen basket is connected to corresponding bolt holes on the centrifuge casing via bolts on the edge of the screen basket, so that the installation is firm and the disassembly is convenient; or the herringbone toothed pulley has a double helical tooth structure.

[0017] Preferably, the scraper is firmly mounted on the differential main shaft, is coaxial with the screen basket and is located inside the screen basket, and the spiral blades of the scraper maintain a certain gap with the inner wall of the screen basket.

[0018] Preferably, guide vanes are provided inside the feed pipe, and the guide vanes are spiral-shaped and evenly distributed on the inner wall of the feed pipe.

[0019] Preferably, the feed pipe is connected to the material conveying pipeline by a flange to ensure a leak-free seal, and the connection with the screen basket is connected to the front door by welding to ensure that the tangential direction of the feed pipe outlet end matches the rotation direction of the screen basket.

[0020] Preferably, the discharge box of the discharge system is a box with a certain volume and a rectangular shape, and an inclined surface for guiding the flow of materials is arranged inside the box; the discharge box is connected to the discharge port of the screen basket, and the connection is well sealed.

[0021] According to a second aspect of the technical solution of the present invention, the present invention provides a method for using a horizontal scraper discharge centrifuge with a large processing capacity, which comprises the following steps:

[0022] Step S1: Preparation before startup, check the equipment status to ensure the normal operation of the equipment;

[0023] Step S2: Feeding operation, controlling the feed amount. Reasonable feed amount and operation process can improve the processing capacity and efficiency of the equipment;

[0024] Step S3: Centrifugal separation: under the action of strong centrifugal force, the water in the material passes through the sieve slits of the sieve basket and enters the filtrate discharge box;

[0025] Step S4: scraper unloading, scraping the filter cake from the inner wall of the sieve basket by the scraper to improve the unloading efficiency;

[0026] Step S5: Equipment monitoring: the intelligent monitoring system monitors the operating parameters of the equipment in real time. If an abnormal parameter is found, an alarm will be issued and fault information will be displayed on the human-machine interface;

[0027] Step S6: Shutdown operation: when the production task is completed or the equipment needs to be shut down for maintenance, the shutdown operation is performed to check the equipment wear and tear and repair the corresponding equipment.

[0028] Compared with the prior art, the beneficial technical effects of the present invention are as follows:

[0029] 1. The present invention has efficient and stable transmission performance, and adopts the transmission method of herringbone toothed pulley and belt. The unique tooth structure of the herringbone toothed pulley makes the belt force uniform, effectively disperses the load, and significantly reduces the vibration and noise during the transmission process. The transmission efficiency is greatly improved, which can be increased by more than 10% compared with the traditional transmission method. It provides strong and stable power support for the large-capacity stable operation of the centrifuge, reduces equipment failures and downtime caused by unstable power transmission, and improves production continuity. The high-precision tensioning wheel and automatic tensioning system monitor and automatically adjust the belt tension in real time to ensure that the belt always maintains the best working state under different working conditions, further enhances the stability and reliability of the transmission, extends the service life of the belt, and reduces maintenance costs and frequency

[0030] 2. The present invention has optimized feeding and separation effects. The tangential feeding method is combined with the guide vanes in the feeding pipe, so that the material enters evenly along the tangential direction of the inner wall of the screen basket, avoiding direct impact on key components such as the screen basket and the scraper, greatly reducing component wear, and extending the overall service life of the equipment. At the same time, it improves the uniformity of material distribution in the screen basket, which is conducive to the uniform action of centrifugal force on the material, improving the separation effect, making the product quality more stable, and the moisture content control more accurately, meeting higher production process requirements. The large torque planetary differential accurately controls the speed difference between the screen basket and the scraper, can adapt to a variety of material characteristics and processing volume changes, ensures that the material is fully separated in the screen basket and unloaded smoothly, effectively reduces problems such as material blockage and incomplete unloading, improves the working efficiency of the centrifuge, and reduces energy consumption.

[0031] 3. The present invention has convenient repair and maintenance characteristics. The front door, feed pipe, and filtrate discharge box are integrated in design. While ensuring good sealing and structural strength, it is easy to disassemble and install as a whole. When a component fails or needs maintenance, the integrated module can be quickly taken out for inspection, cleaning or replacement, which greatly shortens the maintenance time, reduces maintenance costs, and reduces the impact of equipment downtime on production. The screen basket reverse buckle design can replace the screen basket without removing the scraper, which significantly saves manpower and time costs and improves equipment maintenance efficiency. The new wear-resistant and corrosion-resistant alloy material and the surface hardened screen basket further extend the service life of the screen basket and reduce the frequency of replacement. The modular design of the chassis and oil tank of the horizontal scraper unloading centrifuge makes the chassis and oil tank of the horizontal scraper unloading centrifuge an independent integral unit, which is convenient to operate during equipment installation, transportation and maintenance, reduces the parts disassembly and assembly links, and improves the overall stability and maintenance convenience of the equipment. At the same time, the partitions, filters inside the oil tank, and the external inspection windows and oil drain ports are designed to facilitate the management and maintenance of lubricating oil, ensure the normal operation of the lubrication system, and indirectly guarantee the overall performance of the equipment.

[0032] 4. The present invention has excellent wear resistance and protection capabilities. Wear-resistant ceramic protective layers are pasted on easily worn parts such as feed pipes, discharge boxes, and scraper bodies. Its extremely high hardness and wear resistance can effectively resist the scouring, wear and corrosion of materials, and significantly extend the service life of these parts. According to actual tests, the service life of protected parts can be increased by more than 2 times compared with unprotected parts, greatly reducing the cost of equipment maintenance and replacement due to component wear, ensuring long-term stable operation of equipment, and reducing production interruptions caused by frequent component replacement. The cooling interface and heating interface design of the lubrication system enable it to adapt to different ambient temperature conditions. In a high temperature environment, the cooling device can prevent the lubricating oil from deteriorating and ensure good lubrication performance; in a low temperature environment, the heating device can improve the fluidity of the lubricating oil and ensure the normal startup and operation of the equipment. The temperature sensor and pressure sensor monitor the state of the lubricating oil in real time, and promptly alarm and take protective measures when abnormal, further ensuring the safe operation of the equipment, reducing equipment failures caused by lubrication problems, and extending the overall service life of the equipment.

[0033] 5. The present invention has intelligent monitoring and management functions. The advanced intelligent monitoring system collects equipment operating parameters such as rotation speed, temperature, vibration, pressure, etc. in real time through sensors distributed in key parts, and transmits them to the controller after processing by the data acquisition module. The controller analyzes and judges the data. The preset threshold and algorithm can accurately identify the abnormal state of the equipment. Once an abnormality is detected, an alarm is immediately issued and the fault information and location are displayed on the human-machine interface. At the same time, corresponding protective measures are taken, such as shutdown and speed reduction, to effectively prevent the expansion of the fault. The touch screen human-machine interface is convenient for operators to view equipment operating parameters, historical data and fault records, and can set and adjust some operating parameters to realize intelligent operation and management of equipment. This not only improves the reliability and safety of the equipment, reduces the safety risks and production losses caused by equipment failures, but also reduces the labor intensity of operators and improves production management efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 1. It is a front view of a horizontal scraper discharge centrifuge with a large processing capacity according to the present invention;

[0035] Figure 2 It is a top view of a horizontal scraper discharge centrifuge with a large processing capacity according to the present invention;

[0036] Figure 3 It is a cross-sectional view of a horizontal scraper discharge centrifuge with a large processing capacity according to the present invention.

[0037] Description of reference numerals in the accompanying drawings:

[0038] 1. Driving motor; 2. Transmission device; 3. Discharging system; 4. Horizontal scraper unloading centrifuge chassis; 5. Feeding system; 6. Lubrication system; 7. Oil tank; 8. Gear box; 9. Differential; 10. Pulley; 11. Screen basket; 12. Scraper; 13. Filtrate discharge box; 14. Solid discharge port. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0041] It should be noted that the concepts such as "first" and "second" mentioned in the present invention are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0042] It should be noted that the modifications of "one" and "plurality" mentioned in the present invention are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise clearly indicated in the context, it should be understood as "one or more".

[0043] The present invention provides a large-capacity horizontal scraper unloading centrifuge, which includes a drive motor, a transmission device, a screen basket, a scraper, a feeding system and a unloading system; the drive motor provides power for the centrifuge, and the drive motor includes a stator and a rotor; the transmission device realizes the smooth and efficient transmission of the power of the drive motor, and the transmission device adopts a herringbone toothed pulley to provide a large torque output; the screen basket is used for centrifugal separation of materials, and the solid-liquid separation of materials is realized by the centrifugal force generated by the high-speed rotating screen basket; the scraper adopts a small-pitch spiral blade design, and the small-pitch spiral blade enables the scraper to scrape the material on the inner wall of the screen basket when the screen basket rotates; the feeding pipe of the feeding system is a circular pipe, the inlet end of which is connected to the material conveying pipeline, and the outlet end is arranged in a tangential direction on one side of the screen basket; the unloading system is located below the unloading port of the screen basket, receives the filter cake scraped by the scraper and guides the filter cake to be discharged. Compared with the prior art horizontal scraper unloading centrifuge, the large-capacity horizontal scraper unloading centrifuge of this patent increases the material processing capacity by more than 30%.

[0044] In one embodiment, the transmission device further includes a belt and a tensioning wheel; the driving motor is tightly connected to the input shaft of the transmission device through a coupling to transmit the power generated by the motor to the transmission system. In one embodiment, it further includes a horizontal scraper unloading centrifuge chassis, a lubrication system and an intelligent monitoring system; the horizontal scraper unloading centrifuge chassis is welded from high-strength steel; the lubrication system includes a lubrication pump, a main oil pipe, a branch oil pipe, an oil nozzle, a cooling device, a heating device, a temperature sensor and a pressure sensor; the cooling device and the heating device are respectively connected to the corresponding interfaces of the lubrication system, and the temperature sensor and the pressure sensor are connected to the intelligent monitoring system through a signal line; the lubrication pump is installed on the upper part of the oil tank, the main oil pipe is arranged between the oil tank, the lubrication pump, the cooling device and the heating device, N branch oil pipes are installed in the centrifuge, the oil inlet of the branch oil pipe is connected to the main oil pipe, and the end of the branch oil pipe is provided with an oil nozzle; the intelligent monitoring system includes multiple sensors, a data acquisition module, a controller and a human-machine interface.

[0045] Sensors are distributed on the centrifuge drive motor, transmission device, and screen basket to collect the operating parameters of the equipment in real time; the data acquisition module, controller, and human-machine interface are installed in the control cabinet of the horizontal scraper unloading centrifuge; the sensors collect the operating parameters of the equipment in real time, and convert the collected analog signals into digital signals and transmit them to the data acquisition module. The data acquisition module organizes and preliminarily processes the digital signals and then transmits them to the controller in the control cabinet. The controller analyzes and judges the data according to the preset thresholds and algorithms. When an abnormal situation is detected, an alarm signal is immediately issued, and the fault information is transmitted to the human-machine interface for display. At the same time, corresponding protective measures can be taken.

[0046] In one embodiment, the transmission device is located between the drive motor and the centrifuge main shaft, and is arranged above the chassis of the horizontal scraper unloading centrifuge. In one embodiment, the screen basket is conical, and its cylinder wall is covered with evenly distributed screen gaps, and the size of the screen gaps is determined according to the characteristics of the material and the separation requirements. In one embodiment, the screen basket is connected to the corresponding bolt holes on the centrifuge casing through bolts on the edge of the screen basket, and is firmly installed and easy to disassemble; or the herringbone toothed pulley has a double helical tooth structure. In one embodiment, the scraper is firmly installed on the differential main shaft, coaxial with the screen basket and located inside the screen basket, and the spiral blades of the scraper maintain a certain gap with the inner wall of the screen basket.

[0047] In one embodiment, a guide vane is provided inside the feed pipe, and the guide vane is spiral and evenly distributed on the inner wall of the feed pipe. In one embodiment, the feed pipe is connected to the material conveying pipeline by a flange to ensure a leak-free seal, and the connection with the screen basket is connected to the front door by welding to ensure that the tangent direction of the outlet end of the feed pipe matches the rotation direction of the screen basket. In one embodiment, the discharge box of the discharge system is a box with a certain volume, in the shape of a rectangular parallelepiped, and an inclined surface for guiding the flow of materials is provided inside; the discharge box is connected to the discharge port of the screen basket, and the connection is well sealed.

[0048] In addition, the present invention provides a method for using a horizontal scraper discharge centrifuge with a large processing capacity, which comprises the following steps:

[0049] Step S1: Preparation before startup, check the equipment status to ensure the normal operation of the equipment;

[0050] Step S2: Feeding operation, controlling the feed amount. Reasonable feed amount and operation process can improve the processing capacity and efficiency of the equipment;

[0051] Step S3: Centrifugal separation: under the action of strong centrifugal force, the water in the material passes through the sieve slits of the sieve basket and enters the filtrate discharge box;

[0052] Step S4: scraper unloading, scraping the filter cake from the inner wall of the sieve basket by the scraper to improve the unloading efficiency;

[0053] Step S5: Equipment monitoring: the intelligent monitoring system monitors the operating parameters of the equipment in real time. If an abnormal parameter is found, an alarm will be issued and fault information will be displayed on the human-machine interface;

[0054] Step S6: Shutdown operation: when the production task is completed or the equipment needs to be shut down for maintenance, the shutdown operation is performed to check the equipment wear and tear and repair the corresponding equipment.

[0055] The horizontal scraper discharge centrifuge with large processing capacity and the use method thereof of the present invention are described in detail below in conjunction with the accompanying drawings.

[0056] See also Figure 1-Figure 3 The present invention provides a horizontal scraper unloading centrifuge with a large processing capacity, which includes a driving motor 1, a transmission device 2, a screen basket 11, a scraper 12, a feeding system 5, a unloading system 3, a horizontal scraper unloading centrifuge chassis 4 and an oil tank 7, a lubrication system 6 and an intelligent monitoring system.

[0057] The driving motor 1 is tightly connected to the input shaft of the transmission device 2 through a coupling. The driving motor 1 is installed above the bottom frame 4 of the horizontal scraper unloading centrifuge, and is located at one end of the equipment; the unloading box of the unloading system 3 is connected to the unloading port of the screen basket 11; the inlet end of the feeding system 5 is connected to the material conveying pipeline, and the outlet end is arranged in a tangential direction on one side of the screen basket 11; the screen basket 11 is connected to the corresponding bolt holes on the centrifuge casing through bolts on the edge of the screen basket 11, and the screen basket 11 is located at the center of the centrifuge, and its axis coincides with the main shaft; the scraper 12 is connected to the centrifuge through the screw thread of the screen basket 11. It is installed on the differential 9 in a bolted connection manner and can be fine-tuned in the axial direction. The scraper 12 is firmly installed on the main shaft of the differential 9, coaxial with the screen basket 11 and located inside the screen basket 11; the gear box 8 is arranged outside the differential 9, the solid discharge port 14 is arranged at the bottom of the discharge box, the inlet end of the feeding system 5 is connected to the material conveying pipeline, and the outlet end is arranged in a tangential direction on one side of the screen basket 11; the discharge system is connected to the discharge port of the screen basket 11, and the chassis 4 of the horizontal scraper discharge centrifuge is firmly connected to the ground foundation through shock-absorbing springs and anchor bolts.

[0058] The following is a detailed description of the specific settings and functions of the drive motor 1, transmission device 2, screen basket 11, scraper 12, feeding system 5, discharge system 3, horizontal scraper discharge centrifuge chassis 4 and oil tank 7, lubrication system 6 and intelligent monitoring system.

[0059] The drive motor 1 is generally cylindrical in shape and contains core components such as a stator and a rotor. The stator is composed of multiple windings and is fixed inside the motor housing; the rotor is installed inside the stator through bearings and connected to the output shaft, and has permanent magnets distributed on its surface.

[0060] The drive motor 1 is tightly connected to the input shaft of the transmission device 2 through a coupling, and the power generated by the drive motor 1 is transmitted to the transmission system. The drive motor 1 is installed at a specific position of the chassis 4 of the horizontal scraper unloading centrifuge, generally located at one end of the equipment, and its axial direction is parallel to the main shaft of the centrifuge to effectively transmit torque. When the power is turned on, three-phase alternating current is passed into the stator winding to generate a rotating magnetic field. The magnetic field acts on the rotor, causing the rotor to rotate with the magnetic field, thereby driving the output shaft to rotate and providing a power source for the entire centrifuge. The drive motor 1 is the power provider of the centrifuge. Its power and speed characteristics determine the processing capacity and operating speed of the centrifuge. A stable and reliable drive motor can ensure that the centrifuge continues to operate efficiently under the designed working conditions and meet the requirements of large processing capacity.

[0061] The transmission device 2 is mainly composed of a herringbone toothed pulley, a pulley 10 and a tensioning wheel. The herringbone toothed pulley has a special double helical tooth structure, which is designed to evenly disperse the force of the belt. The double helical toothed pulley can make the force of the pulley 10 more even during the transmission process, effectively disperse the load, and thus significantly reduce the vibration and noise during the transmission process. The pulley 10 is made of a high-strength, wear-resistant and elastic rubber material. The pulley 10 is closely matched with the herringbone toothed pulley to ensure the smooth transmission of power; the tensioning wheel is a circular wheel body, and the tensioning wheel is installed on the chassis 4 of the horizontal scraper unloading centrifuge through an adjusting device, which can change the tension of the pulley 10. The adjusting device is installed on the chassis 4 of the horizontal scraper unloading centrifuge.

[0062] The drive motor shaft is connected to the input herringbone toothed belt pulley of the transmission device 2, and the output herringbone toothed belt pulley is connected to the main shaft of the centrifuge. The belt is wrapped around the input herringbone toothed belt pulley and the output herringbone toothed belt pulley, and the tensioner contacts the belt and applies appropriate tension. The transmission device 2 is located between the drive motor 1 and the main shaft of the centrifuge, and is reasonably arranged above the chassis 4 of the horizontal scraper unloading centrifuge to ensure that the transmission path of the belt is smooth, and the axes of each pulley are parallel and in the same horizontal plane to ensure the stability of the transmission. The motor drives the input herringbone toothed belt pulley to rotate, and with the help of the friction between the belt and the pulley, the power is transmitted to the output herringbone toothed belt pulley, thereby driving the main shaft to rotate. The double helical tooth structure of the herringbone toothed belt pulley makes the belt evenly stressed during the transmission process, reducing vibration and slippage, and the tensioner adjusts the belt tension in real time to maintain the transmission efficiency. The transmission device 2 realizes the smooth and efficient transmission of power, improves the transmission efficiency, reduces the energy loss and mechanical vibration in the power transmission process, ensures the stable operation of the centrifuge, and prolongs the service life of the equipment. At the same time, the unique design of the herringbone toothed pulley can adapt to the large torque output and meet the power requirements of the centrifuge under large processing capacity conditions.

[0063] The present invention improves the transmission efficiency by more than 10% compared with the traditional transmission mode by optimizing the design of the pulley diameter ratio, the belt tension adjustment mechanism, etc., effectively reduces energy consumption, and provides reliable power guarantee for the stable operation of the centrifuge with large processing capacity. The transmission device 2 is also equipped with a high-precision tensioning wheel and an automatic tensioning system. The position and angle of the tensioning wheel are carefully designed to monitor the tension changes of the pulley 10 in real time, and automatically adjust the tension through the automatic tensioning system to ensure that the pulley 10 always maintains the appropriate tension under different working conditions, avoiding problems such as reduced transmission efficiency, belt slippage or increased wear caused by loose or overtightened belts.

[0064] The screen basket 11 is conical, and its cylinder wall is covered with evenly distributed screen slots. The size of the screen slots is determined according to the characteristics of the material and the separation requirements. The screen basket 11 is made of high-strength, wear-resistant and corrosion-resistant stainless steel. The screen basket 11 is connected to the corresponding bolt holes on the centrifuge casing through bolts on the edge of the screen basket 11, and is firmly installed and easy to disassemble. The screen basket 11 is located at the center of the centrifuge, and its axis coincides with the main shaft. During operation, it rotates at high speed, and the material is centrifugally separated inside it. When the main shaft drives the screen basket 11 to rotate at high speed, the material is thrown to the inner wall of the screen basket 11 under the action of centrifugal force, and the liquid part of it passes through the screen slots into the filtrate discharge box 13, while the solid material is trapped on the inner wall of the screen basket 11 to form a filter cake. The screen basket 11 is the core place for centrifugal separation of materials. The strong centrifugal force generated by high-speed rotation realizes solid-liquid separation. The size and structure of the screen slots determine the separation accuracy and efficiency. The appropriate material and structure of the screen basket 11 can ensure long-term stable operation under large processing volume and harsh working conditions, and effectively improve product quality.

[0065] In a specific embodiment, a screen basket reverse buckle design is adopted, and the small end of the screen basket 11 faces outward and the large end faces inward. This reverse buckle design does not require the scraper to be removed first when the screen basket is disassembled, which significantly saves the time and labor cost of replacing the screen basket. In an embodiment, the screen basket 11 is made of a new type of wear-resistant and corrosion-resistant alloy material, and its surface is specially hardened and has higher strength and wear resistance, which can effectively resist the wear and corrosion of materials and extend the service life of the screen basket.

[0066] The scraper body is made of alloy steel, and its surface is processed with small lead spiral blades. The scraper body is preferably made of high-quality alloy steel, and its surface is finely processed and heat-treated, and has good hardness and wear resistance. The scraper 12 is installed on the differential 9 by bolt connection, and can be fine-tuned in the axial direction. The scraper 12 is firmly installed on the differential main shaft, coaxial with the screen basket 11 and located inside the screen basket 11, and the spiral blades of the scraper 12 maintain a certain gap with the inner wall of the screen basket 11. The scraper 12 is inside the screen basket 11 and rotates synchronously with the rotation of the main shaft, and its position and angle can be adjusted according to the material characteristics and separation requirements. Driven by the differential main shaft, the scraper 12 and the screen basket 11 move relative to each other. Due to the small lead spiral blade design on the scraper body, the scraper can gradually scrape off the filter cake on the inner wall of the screen basket 11 during rotation, and push the filter cake to move toward the discharge box. The scraper 12 realizes efficient unloading of the filter cake. The small-pitch spiral blade can increase the contact time and scraping force between the scraper 12 and the filter cake, making the unloading more thorough, effectively reducing the moisture content of the product and improving the product quality. At the same time, the gap between the scraper 12 and the screen basket 11 can be adjusted according to actual conditions to meet the unloading requirements of different materials and ensure the stable operation of the centrifuge.

[0067] In one embodiment, the small-pitch spiral blade enables the scraper to scrape the material on the inner wall of the screen basket with a smaller pitch when rotating with the screen basket. This design increases the contact time between the scraper and the material and the scraping force, and can more thoroughly scrape the material off the inner wall of the screen basket, thereby reducing the moisture content of the product. In one embodiment, the installation angle and position of the scraper 12 can be fine-tuned according to actual needs. By adjusting the gap between the scraper 12 and the screen basket, the unloading effect is further optimized to ensure efficient unloading under different material characteristics and processing volumes.

[0068] The gearbox 8 is arranged outside the differential 9 as a mounting carrier of the differential 9. The gearbox 8 as a whole has a specific placement position in the structural layout of the centrifuge. The gearbox 8 is located on the power transmission path, close to one end of the drive motor. The gearbox 8 is interconnected with the drive motor 1 and the differential 9 and other components through a reasonable connection method. Its axial direction is parallel to the main shaft of the centrifuge, and together they build a stable power transmission architecture. In this embodiment, there are three ways to connect the gearbox 8 with the drive motor 1 and the differential 9 and other components: direct connection, connection through a coupling, and connection through a reducer. In one embodiment, the gearbox 8 is connected with the drive motor 1 and the differential 9 and other components by a coupling. The gearbox 8 mainly plays the role of carrying and placing the differential 9, providing a stable installation foundation for the differential 9, and ensuring that the differential 9 is in an accurate position and can work normally during the operation of the centrifuge.

[0069] The solid discharge port 14 is set in the centrifuge at a position convenient for discharging solid materials, usually connected with the scraper discharge path, located at the bottom of the discharge box, corresponding to the subsequent solid material processing or transportation link outside the centrifuge, to ensure that the discharged solid coal can smoothly enter the relevant equipment of the next process. The core purpose of the solid discharge port 14 is to provide a discharge channel for the solid coal after centrifugal separation and scraper discharge, so that the solid coal can leave the centrifuge in an orderly manner.

[0070] The feed pipe of the feed system 5 is a circular pipe, the inlet end of which is connected to the material conveying pipeline, and the outlet end is arranged in a tangential direction on one side of the screen basket 11. A guide vane is arranged inside the feed pipe, and the guide vane is spiral and evenly distributed on the inner wall of the feed pipe. The feed pipe and the material conveying pipeline are connected by flanges to ensure that the seal is leak-free. The connection between the feed pipe and the screen basket 11 is connected to the front door by welding to ensure that the tangential direction of the outlet end of the feed pipe matches the rotation direction of the screen basket 11. The feed system 5 is installed obliquely on one side of the centrifuge, and its outlet end is close to the screen basket 11 but not directly in contact with it, so that the material can smoothly enter the screen basket 11 in a tangential direction. The material enters the feed pipe under the action of the conveying pressure, and after being guided by the internal guide vanes, the material enters the screen basket 11 evenly along the tangential direction, avoiding direct impact on the screen basket 11 and scraper 12 and other components. The invention can realize the smooth tangential feeding of materials, reduce the impact of materials on the equipment, protect key components such as the screen basket 11 and the scraper 12, extend the service life of the equipment, and make the materials more evenly distributed in the screen basket 11, which is beneficial to improve the centrifugal separation effect and ensure the stability of product quality.

[0071] In one embodiment, when the material enters the centrifuge, it enters the screen basket at a certain speed along the tangent direction of the feed pipe, rather than directly impacting the screen basket and scraper 12 and other components. Special guide vanes are arranged inside the feed pipe to perform preliminary diversion and guidance of the material, so that the material is evenly distributed on the inner wall of the screen basket, further reducing the local impact of the material on the screen basket. This tangential feeding method not only reduces the impact of the material on the equipment and prolongs the service life of the equipment, but also improves the uniformity of the distribution of the material in the screen basket, which is conducive to improving the centrifugal separation effect and making the product quality more stable.

[0072] The unloading box of the unloading system 3 is a box with a certain volume, in the shape of a rectangular parallelepiped, and is provided with an inclined surface inside to guide the flow of materials. The unloading box is connected to the unloading port of the screen basket 11, and the connection is well sealed. The unloading box is fixedly connected to the centrifuge casing by welding, its inlet is docked with the unloading port of the screen basket 11, and the outlet is connected to the subsequent material conveying equipment or storage device. The unloading system 3 is located below the unloading port of the screen basket 11, receives the filter cake scraped off by the scraper and guides it to be discharged. After the scraper 12 scrapes the filter cake off the inner wall of the screen basket 11, the filter cake enters the unloading box under the action of gravity and the push of the scraper, and is smoothly discharged to the external equipment under the guidance of the guide plate inside the unloading box. The unloading box completes the collection and transportation tasks of the filter cake, ensures a smooth unloading process, prevents material blockage, and orderly transports the dehydrated products to subsequent processing links to ensure the continuity of the entire production process.

[0073] The horizontal scraper unloading centrifuge chassis 4 is welded from high-strength steel, has sufficient rigidity and stability, and can withstand the weight of the centrifuge as a whole and the vibration generated during operation. The oil tank is integrated inside the horizontal scraper unloading centrifuge chassis 4, which is a sealed box body, and adopts a sealed design to prevent lubricating oil leakage. The oil tank is provided with a partition and a filter inside, which can filter and precipitate the lubricating oil to ensure the cleanliness of the lubricating oil; the shape of the oil tank is designed according to the structure and space of the horizontal scraper unloading centrifuge chassis, and is a rectangular parallelepiped to make full use of the space. The horizontal scraper unloading centrifuge chassis 4 is firmly connected to the ground foundation through shock-absorbing springs and anchor bolts, providing an installation foundation for other components of the centrifuge. The oil tank 7 is connected to the horizontal scraper unloading centrifuge chassis 4 by bolts, and the partition inside it divides the oil tank into different areas, and the filter is installed at the outlet of the oil pipe. The horizontal scraper unloading centrifuge chassis 4 is located at the bottom of the centrifuge, supporting the weight of the entire equipment. The oil tank 7 is inside the horizontal scraper unloading centrifuge chassis, at a relatively low position, which is convenient for the lubricating oil to flow back under the action of gravity. The horizontal scraper unloading centrifuge chassis 4 provides a stable support platform for the centrifuge, reducing the vibration and displacement of the equipment during operation. The oil tank 7 stores lubricating oil, and the lubricating oil is transported to various parts that need lubrication through an oil pump. The partition is used to precipitate impurities and separate air, and the filter filters the tiny particles in the lubricating oil to ensure the cleanliness of the lubricating oil, so that the lubrication system 6 can operate stably. The horizontal scraper unloading centrifuge chassis 4 ensures that the centrifuge is installed firmly, reduces the impact of vibration on the equipment and the environment, and the oil tank 7 provides guarantee for the lubrication of the equipment, prolongs the service life of the equipment components, and improves the reliability and stability of the equipment. At the same time, the modular design of the horizontal scraper unloading centrifuge chassis 4 and the oil tank 7 facilitates the installation, transportation and maintenance of the equipment. A plurality of inspection windows and oil drain ports are provided on the outside of the horizontal scraper centrifuge chassis 4 and the oil tank 7, which facilitates the inspection, replacement and addition of the lubricating oil in the oil tank 7. This modular design makes the horizontal scraper centrifuge chassis 4 and the oil tank 7 an independent integral unit, which can be operated as a whole during equipment installation, transportation and maintenance, reducing the disassembly and assembly of components and improving the overall stability and maintenance convenience of the equipment.

[0074] The lubrication system 6 is mainly composed of a lubrication pump, a main oil pipe, a branch oil pipe, an oil spray nozzle, a cooling device, a heating device, a temperature sensor and a pressure sensor. The lubrication system 6 adopts a centralized lubrication design to provide accurate lubrication for each transmission component and key moving parts of the centrifuge. The lubrication pump is a high-performance gear pump that can provide stable lubricating oil pressure and flow. The lubrication pump is installed on the upper part of the oil tank; the lubrication system 6 is provided with a main oil pipe and a branch oil pipe. The main oil pipe transports the lubricating oil from the oil tank to each branch oil pipe. The branch oil pipe accurately sprays the lubricating oil to the parts that need lubrication, such as bearings, gears, journals, etc. through a precise oil spray nozzle; the lubrication system 6 is reserved with two interfaces, one for cooling and the other for heating. The main oil pipe and the branch oil pipe are circular pipes that connect the pump to each lubrication part. The oil spray nozzle is installed at the end of the branch oil pipe in a small mouth shape, and the lubricating oil can be sprayed in a mist. The cooling device can be a cooler, the heating device can be an electric heater, and the temperature sensor and the pressure sensor are small electronic components installed in the oil tank 7. The inlet of the lubrication pump is connected to the oil tank 7, and the outlet is connected to the main oil pipe. The main oil pipe is then branched and connected to various branch oil pipes. The oil spray nozzle is installed at the end of the branch oil pipe and points to the part that needs lubrication.

[0075] The cooling device and the heating device are respectively connected to the corresponding interfaces of the lubrication system 6, and the temperature sensor and the pressure sensor are connected to the control system through the signal line. The lubrication pump is installed on the upper part of the oil tank, and the main oil pipe and the branch oil pipe are laid along the frame and component layout of the centrifuge. The main oil pipe is arranged between the oil tank 7, the lubrication pump, the cooling device and the heating device. N branch oil pipes are installed in the centrifuge. The ends of the branch oil pipes are provided with oil spray nozzles, which are located near the parts that need lubrication such as bearings and gears. The cooling device and the heating device can be installed outside the equipment, and the temperature sensor and the pressure sensor are distributed in the key parts of the lubrication system 6. Specifically, a number of vertical through holes can be processed on the centrifuge, and the branch oil pipes are assembled into the holes. The upper part of the centrifuge is equipped with an oil pipe fixed mounting plate, and the upper end of the branch oil pipe passes through and is fixed to the fixed mounting plate. In this embodiment, the oil inlets of all branch oil pipes are connected to the main oil pipe, and the main oil pipe is arranged above the centrifuge. The main oil pipe is used to distribute lubricating oil to different branch oil pipes to achieve accurate oiling of different points.

[0076] When the lubrication pump is working, the lubricating oil is drawn from the oil tank and transported to each oil nozzle through the main oil pipe and the branch oil pipe. The oil nozzle sprays the lubricating oil in a mist form onto the surface of the bearings, gears and other parts for lubrication. The temperature sensor monitors the temperature of the lubricating oil in real time, and the pressure sensor monitors the pressure of the lubricating oil. When the temperature or pressure exceeds the set range, the control system starts the cooling device or the heating device according to the sensor signal, adjusts the temperature and pressure of the lubricating oil, and ensures the lubrication effect. The lubrication system 6 provides accurate lubrication for each transmission component and key moving part of the centrifuge, reduces the friction and wear between the components, and prolongs the service life of the equipment. The presence of the cooling device and the heating device enables the lubrication system 6 to adapt to different ambient temperature conditions, ensures that the lubricating oil works within a suitable temperature and viscosity range, and ensures the stable operation of the equipment under various working conditions. The monitoring of the temperature sensor and the pressure sensor and the coordination of the control system improve the intelligence level of the lubrication system 6 and ensure the safe operation of the equipment. In a specific embodiment, when the ambient temperature is high or the equipment runs for a long time, causing the temperature of the lubricating oil to rise, the cooling device is started, and the heat of the lubricating oil is taken away by heat exchange, so that the temperature of the lubricating oil is kept within a suitable range, preventing the lubricating oil from deteriorating due to high temperature, and ensuring its good lubrication performance. The heating interface is connected to the heating device. In a low temperature environment, the heating device is started to heat the lubricating oil, reduce its viscosity, improve fluidity, and enable the lubricating oil to reach various lubrication parts smoothly, ensuring that the equipment can start and operate normally in a cold environment. The lubrication system 6 is also equipped with a temperature sensor and a pressure sensor, which can monitor the temperature and pressure of the lubricating oil in real time and feed back the signal to the control system. When the temperature or pressure is abnormal, the control system will promptly issue an alarm and take corresponding protective measures to ensure the safe operation of the equipment.

[0077] The intelligent monitoring system is composed of multiple sensors, data acquisition modules, controllers and human-machine interfaces. Sensors are distributed in various key parts of the centrifuge, such as the drive motor 1, the transmission device 2, the screen basket 11, the bearings, etc., and are used to collect the operating parameters of the equipment in real time, including speed, temperature, vibration, pressure, etc. The shape varies according to the different measurement parameters. The data acquisition module is an electronic circuit board, the controller is a programmable logic controller (PLC), and the human-machine interface is a touch screen. The data acquisition module processes and converts the data collected by the sensor, and then transmits it to the controller. The controller uses a high-performance microprocessor to analyze and judge the data, and judges whether the equipment is in normal operation according to the preset thresholds and algorithms. When an abnormal situation is detected, the controller immediately sends an alarm signal, and displays the fault information and location through the human-machine interface, and takes corresponding protective measures, such as shutdown, speed reduction, etc., to prevent the fault from further expanding. The human-machine interface adopts a touch screen design. Operators can easily view the equipment's operating parameters, historical data, fault records and other information through the human-machine interface. They can also set and adjust some of the equipment's operating parameters, such as speed, differential adjustment, etc., realizing intelligent operation and management of the equipment, improving the equipment's reliability and safety, and reducing the operator's labor intensity.

[0078] The sensor is connected to the data acquisition module through a signal line. The data acquisition module transmits the collected data to the controller. The controller and the human-machine interface are connected through a data line or network to realize data interaction and the issuance of instructions. The sensor is installed in the key parts of the centrifuge, such as the temperature sensor installed on the motor housing and the vibration sensor installed near the bearing seat. The data acquisition module, controller and human-machine interface can be installed in the control cabinet of the centrifuge, located near the equipment or in a convenient location for operation. The sensor collects the operating parameters of the equipment in real time, such as speed, temperature, vibration, pressure, etc., and converts these analog signals into digital signals and transmits them to the data acquisition module. The data acquisition module organizes and preliminarily processes the data and transmits it to the controller. The controller analyzes and judges the data according to the preset threshold and algorithm. When an abnormal situation is detected, an alarm signal is immediately issued, and the fault information is transmitted to the human-machine interface for display. At the same time, corresponding protection measures can be taken, such as shutdown, speed reduction, etc. The operator can view the operating parameters, historical data, fault records and other information of the equipment through the human-machine interface, and can set and adjust some operating parameters of the equipment.

[0079] The intelligent monitoring system realizes real-time monitoring and intelligent management of the centrifuge, promptly discovers hidden dangers of equipment failure and issues alarms, takes protective measures, reduces equipment damage and downtime, and improves equipment reliability and safety. At the same time, it is convenient for operators to monitor and operate the equipment, reduces labor intensity, and improves production management efficiency. It can also provide a basis for equipment maintenance and optimization through analysis of historical data.

[0080] In addition, a method for using a large-capacity horizontal scraper discharge centrifuge comprises the following steps:

[0081] Step S1: Prepare before starting, check the equipment status to ensure the normal operation of the equipment. Check whether the connection parts of the equipment are firm, whether the seal is good, whether the oil level of the lubrication system 6 is normal, whether the lubricating oil is clean, whether the cooling device and heating device are working properly, and whether the intelligent monitoring system is operating normally and there is no fault alarm information.

[0082] Step S2: Feeding operation, controlling the feed amount. Reasonable feed amount and operation process can improve the processing capacity and efficiency of the equipment. Start the material conveying equipment, and the material enters the screen basket 11 evenly through the tangential feed pipe. Under the action of the guide vanes in the feed pipe, the material enters the screen basket 11 smoothly in the tangential direction to avoid direct impact on the screen basket 11 and the scraper 12.

[0083] Step S3: Centrifugal separation. Under the strong centrifugal force, the water in the material enters the filtrate drain box through the sieve slit of the sieve basket. The drive motor 1 is started, driving the transmission device 2 to operate, thereby causing the sieve basket 11 to rotate at high speed. Under the strong centrifugal force, the water in the material enters the filtrate drain box 13 through the sieve slit of the sieve basket 11, and the solid material forms a filter cake on the inner wall of the sieve basket 11. The high-torque planetary differential accurately controls the speed difference between the sieve basket 11 and the scraper 12 to ensure that the material is fully separated in the sieve basket 11 without clogging.

[0084] Step S4: scraper unloading, scraping the filter cake from the inner wall of the screen basket by the scraper to improve the unloading efficiency. As the centrifugal separation proceeds, the small lead spiral blades on the scraper body scrape the filter cake from the inner wall of the screen basket 11 driven by the main shaft, and the filter cake enters the unloading box under the push of the scraper, and the dehydrated clean coal product is discharged through the unloading box.

[0085] Step S5: Equipment monitoring, the intelligent monitoring system monitors the operating parameters of the equipment in real time. If the parameters are abnormal, an alarm will be issued and the fault information will be displayed on the human-machine interface. The intelligent monitoring system monitors the operating parameters of the equipment in real time, such as the rotation speed, temperature, vibration, and working status of the scraper of the screen basket 11. Once an abnormal parameter is found, an alarm will be issued immediately and the fault information will be displayed on the human-machine interface. The operator can take corresponding measures according to the prompts, such as adjusting parameters, stopping the machine for inspection, etc.

[0086] Step S6: shutdown operation, when the production task is completed or the equipment needs to be shut down for maintenance, the shutdown operation is performed to check the equipment wear and repair the corresponding equipment. When the production task is completed or the equipment needs to be shut down for maintenance, the feeding is stopped first, and after the material in the screen basket 11 is basically processed, the drive motor 1 is stopped, the lubrication system 6 and the cooling device or heating device are turned off, the residual materials around the equipment are cleaned, the wear of the equipment parts is checked, and preparations are made for the next startup.

[0087] Through the implementation of the above specific technical solutions, the large-capacity horizontal scraper unloading centrifuge of the present invention has significant advantages in terms of processing capacity, separation effect, equipment stability, maintenance convenience and environmental adaptability, and can effectively meet the needs of industries such as coal washing for efficient and reliable centrifugal separation equipment.

[0088] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A horizontal scraper discharge centrifuge with large processing capacity, characterized in that: It includes a driving motor, a transmission device, a screen basket, a scraper, a feeding system and a discharging system; The drive motor provides power to the centrifuge, and the drive motor includes a stator and a rotor; The transmission device adopts herringbone toothed pulley to provide large torque output and realize smooth and efficient transmission of the driving motor power; The screen basket is used for centrifugal separation of materials. The centrifugal force generated by the high-speed rotating screen basket is used to separate the solid and liquid materials. The scraper adopts a small-pitch spiral blade design, which enables the scraper to scrape the material on the inner wall of the screen basket as it rotates with the screen basket; The feeding pipe of the feeding system is a circular pipe, the inlet end of which is connected to the material conveying pipe, and the outlet end is arranged in a tangential direction on one side of the screen basket; The discharge system is located below the discharge port of the screen basket, receiving the filter cake scraped off by the scraper and guiding the filter cake to be discharged.

2. The large-capacity horizontal scraper discharge centrifuge according to claim 1, characterized in that: The transmission device further includes a belt and a tensioner; the drive motor is tightly connected to the input shaft of the transmission device through a coupling to transmit the power generated by the motor to the transmission system.

3. The large-capacity horizontal scraper discharge centrifuge according to claim 1, characterized in that: It further includes a horizontal scraper unloading centrifuge chassis, a lubrication system and an intelligent monitoring system; the horizontal scraper unloading centrifuge chassis is welded by steel; the lubrication system includes a lubrication pump, a main oil pipe, a branch oil pipe, an oil nozzle, a cooling device, a heating device, a temperature sensor and a pressure sensor; The cooling device and the heating device are respectively connected to the corresponding interfaces of the lubrication system, and the temperature sensor and the pressure sensor are connected to the intelligent monitoring system through signal lines; the lubrication pump is installed on the upper part of the oil tank, the main oil pipe is arranged between the oil tank, the lubrication pump, the cooling device and the heating device, N branch oil pipes are installed in the centrifuge, the oil inlet of the branch oil pipe is connected to the main oil pipe, and the end of the branch oil pipe is provided with an oil nozzle; The intelligent monitoring system includes multiple sensors, data acquisition modules, controllers and human-machine interfaces.

4. The large-capacity horizontal scraper discharge centrifuge according to claim 3 is characterized in that: Sensors are distributed on the centrifuge drive motor, transmission device, and screen basket to collect the operating parameters of the equipment in real time; the data acquisition module, controller, and human-machine interface are installed in the control cabinet of the horizontal scraper unloading centrifuge; the sensors collect the operating parameters of the equipment in real time, and convert the collected analog signals into digital signals and transmit them to the data acquisition module. The data acquisition module organizes and preliminarily processes the digital signals and then transmits them to the controller in the control cabinet. The controller analyzes and judges the data according to the preset thresholds and algorithms. When an abnormal situation is detected, an alarm signal is immediately issued, and the fault information is transmitted to the human-machine interface for display.

5. The large-capacity horizontal scraper discharge centrifuge according to claim 1, characterized in that: The screen basket is conical in shape, and its wall is covered with evenly distributed screen slots. The size of the screen slots is determined according to the characteristics of the material and the separation requirements.

6. The large-capacity horizontal scraper discharge centrifuge according to claim 5, characterized in that: The screen basket is connected to the corresponding bolt holes on the centrifuge casing through bolts on the edge of the screen basket, which is firmly installed and easy to disassemble; Or the herringbone toothed pulley has a double helical tooth structure.

7. The large-capacity horizontal scraper discharge centrifuge according to claim 1, characterized in that: The scraper is firmly mounted on the differential main shaft, coaxial with the screen basket and located inside the screen basket, and a certain gap is maintained between the spiral blades of the scraper and the inner wall of the screen basket.

8. The large-capacity horizontal scraper discharge centrifuge according to claim 1, characterized in that: The feed pipe is provided with guide vanes inside, which are spiral-shaped and evenly distributed on the inner wall of the feed pipe.

9. The large-capacity horizontal scraper discharge centrifuge according to claim 8, characterized in that: The feed pipe is connected to the material conveying pipeline by flange to ensure leakage-free sealing, and the connection with the screen basket is connected to the front door by welding to ensure that the tangential direction of the outlet end of the feed pipe matches the rotation direction of the screen basket.

10. A method for using a horizontal scraper discharge centrifuge with a large processing capacity, characterized in that: It includes the following steps: Step S1: Preparation before startup, check the equipment status to ensure the normal operation of the equipment; Step S2: Feeding operation, controlling the feed amount. Reasonable feed amount and operation process can improve the processing capacity and efficiency of the equipment; Step S3: Centrifugal separation: under the action of strong centrifugal force, the water in the material passes through the sieve slits of the sieve basket and enters the filtrate discharge box; Step S4: scraper unloading, scraping the filter cake from the inner wall of the sieve basket by the scraper to improve the unloading efficiency; Step S5: Equipment monitoring: the intelligent monitoring system monitors the operating parameters of the equipment in real time. If an abnormal parameter is found, an alarm will be issued and fault information will be displayed on the human-machine interface; Step S6: Shutdown operation: when the production task is completed or the equipment needs to be shut down for maintenance, the shutdown operation is performed to check the equipment wear and tear and repair the corresponding equipment.

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