Filtering device for protecting multi-stage pump overflowing piece matched with water isolation pump

Abstract

The scheme belongs to the field of ore separation industry, and particularly relates to a filtering device for protecting a multistage pump overflowing part matched with a water isolation pump, which comprises a filtering unit for filtering ores or an ore mixture, an automatic cleaning device for periodically cleaning the filtering unit to prevent blockage and a motor for providing power, the mechanical energy storage device is electrically connected and matched with the pressure difference controller, and the mechanical energy storage device comprises a brake device capable of controlling the rotating speed of the flywheel and an input device connected with an external device through a group of gears or belts, so that the problem of automatic filtering and cleaning during power failure is solved; therefore, the problems that the machine is overloaded and is abraded during restarting are solved. Meanwhile, solid particles are effectively prevented from entering the clean water pump pool, overflowing pieces of the multi-stage pump are protected, the service life of the multi-stage pump is prolonged, and the equipment operation rate is further improved.

Description

Technical Field

[0001] The present invention belongs to the field of mineral processing industry, and specifically relates to a filtering device for protecting the flow-through parts of a multi-stage pump supporting a water isolation pump. Background Art

[0002] Ore beneficiation has always been one of the core processes in the mining industry. However, traditional ore filtration methods often require a lot of manpower and energy consumption, and also produce a lot of wastewater and waste residue, which has a serious impact on the environment. In the ore beneficiation process, the water isolation pump uses a high-grade ore pulp pool to pour the ore pulp into the bottom of the suspended sphere in the isolation pool. A clean water pump injects high-pressure water into the upper part of the floating sphere, and then the float transfers the pressure to the ore pulp, and then the ore pulp is transported to the designated location through an external pipe. The hydraulic station is driven by a single-chip microcomputer, and six water valves and three oil separators alternately discharge and feed slurry to ensure continuous and uniform transportation. During the ore beneficiation process, the float will wear out during long-term use, resulting in poor sealing. During the paddle discharge process, the ore pulp layer will enter the clean water layer, resulting in a mixed paddle phenomenon. The solid particles in the ore pulp enter the clean water and return to the clean water pump pool. The solid particle size is about -200 mesh, accounting for about 65%. The multistage pump extracts clean water for slurry discharge. After such a cycle, the increasing number of solid particles in the clean water accelerates the wear of the multistage pump flow parts and greatly reduces the service life of the flow parts. In addition, there is also a water isolation pump. In long-term work practice, it is also found that it has the following defects. First, it has a high requirement for pressure water. The system water isolation pump needs to have sufficient pressure water as a power source to drive the diaphragm to move back and forth and transport the transported liquid. If the pressure of the pressure water is insufficient or unstable, it will affect the working efficiency and reliability of the system water isolation pump. Secondly, it has no power and needs to be equipped with a multistage pump, and the accessories wear and consume quickly. The system water isolation pump does not have its own power device and needs to rely on an external multistage pump to provide pressure water. This increases the complexity and cost of the system, and also increases the wear and consumption of accessories such as multistage pumps and pipelines. Furthermore, it will consume clean water and need to replenish the clean water medium. During the operation of the system water isolation pump, some clean water will leak from the diaphragm into the transported liquid or be discharged from the exhaust port. This causes the loss and waste of clean water, and the clean water medium needs to be replenished regularly.

[0003] At this time, by installing a filter, solid particles can be filtered out to protect the flow parts. Therefore, there is an urgent need for an innovative filter to improve the equipment operation efficiency in the ore dressing process, reduce costs, and reduce environmental burdens.

[0004] The invention with the existing publication (announcement) number is: "CN201894891U", an improved combined gas filter for mining. The utility model provides an improved combined gas filter for mining, which has a large filtering capacity, is easy to clean and maintain, and the filter layer can be selected and used according to the situation. It comprises an air inlet, an outer shell, a filter layer, and an air outlet. The outer shell is cylindrical, and the air outlet is arranged at one end of the cylindrical outer shell; the filter layer comprises a coarse filter layer, a medium filter layer, and a fine filter layer, and the coarse filter layer, the medium filter layer, and the fine filter layer are respectively mounted on an inner cylinder, and the inner cylinder together with the filter layer thereon are respectively arranged in the outer shell to respectively constitute a coarse filter, a medium filter, and a fine filter. The outer open end of the inner cylinder is connected with the air outlet of the outer shell, the air outlet of the coarse filter outer shell is the air inlet of the medium filter, and the air outlet of the medium filter is the air inlet of the fine filter. The inner end of the inner cylinder is a blind end, and a through hole is arranged on the cylinder body of the inner cylinder, and the through hole on the outer shell of the coarse filter is the air inlet, and the medium filter is located between the coarse filter and the fine filter.

[0005] Through work practice, it was found that there is still a problem that automatic filtering and cleaning cannot be achieved during power outages, which causes the machine to be overburdened and suffers severe wear when restarting. Summary of the invention

[0006] The present invention provides a filtering device for protecting the flow-through parts of a multi-stage pump supporting a water isolation pump, so as to solve the problem of automatic filtering and cleaning during a power outage.

[0007] In order to achieve the above-mentioned purpose, the present scheme provides a filtering device for protecting the flow-through parts of a multi-stage pump supporting a water isolation pump, including a filtering device for protecting the flow-through parts of a multi-stage pump supporting a water isolation pump, including a filtering unit for filtering ore or ore mixtures, an automatic cleaning device for periodically cleaning the filtering unit to prevent clogging, and a motor for providing power, characterized in that: a mechanical energy storage device and a pressure differential controller, the mechanical energy storage device is electrically connected to the pressure differential controller, the mechanical energy storage device includes a brake device capable of controlling the rotation speed of the flywheel, and an input device connected to an external device through a set of gears or belts.

[0008] The principle and beneficial effects of this scheme are as follows: the filter unit is the core part of the system, which is used to filter ore or ore mixture. During the ore beneficiation process, impurities and waste residues will accumulate in the filter unit, resulting in a decrease in filtration efficiency. Automatic cleaning device. In order to prevent the filter unit from being blocked, the system is equipped with an automatic cleaning device. This device periodically cleans the filter unit to ensure its normal operation. The cleaning operation can be achieved by spraying cleaning liquid, vibration or mechanical scraping. The motor provides power to drive the operation of the filter unit and the automatic cleaning device. It is the energy source of the entire system. The mechanical energy storage device is one of the key innovations of this scheme. It includes a flywheel and a brake device. Under normal power supply conditions, the motor is powered by the power supply system and starts to convert mechanical energy into electrical energy and store it in the mechanical energy storage device. The filter unit is responsible for filtering the ore or ore mixture, and the differential pressure controller monitors the degree of blockage of the filter unit. When the system detects a power outage or power interruption, the automatic switching device starts to work and switches the system to the backup power mode. The mechanical energy storage device plays a key role. The motor stops running, but the flywheel in the mechanical energy storage device still has rotational kinetic energy, which can continue to drive the operation of the filter unit and the automatic cleaning device. At this time, the filter unit continues to filter the ore, and the differential pressure controller continues to monitor the status of the filter unit. The differential pressure controller continues to monitor the degree of blockage of the filter unit in the backup power mode. Once it detects that the pressure difference exceeds the preset threshold, it will trigger the automatic cleaning device. The automatic cleaning device can use a variety of methods, such as spraying cleaning fluid, vibration or mechanical scraping, to remove dirt and impurities on the filter unit to ensure filtration efficiency. After cleaning is completed, the filter unit continues to work until it needs to be cleaned again. The operating time of the mechanical energy storage device depends on its energy storage capacity, the quality and speed of the flywheel, and the cleaning frequency of the filter unit. Under normal circumstances, this system can continue to operate for about 30 minutes in a power outage to solve the problem that automatic filtering and cleaning cannot be achieved during a power outage, thereby solving the problem that the machine is overloaded and will be severely worn when restarted.

[0009] Furthermore, the input device and the output are connected to the automatic cleaning device via a set of gears.

[0010] The principle and beneficial effects of this solution are that the input device transfers the mechanical energy provided by the external device to the automatic cleaning device, thereby achieving an efficient cleaning process. This helps to maintain the efficient operation of the filter unit and prolong the service life of the filter. The input device draws mechanical energy from the external device without the need for additional electricity or power source to drive the automatic cleaning device. This reduces the energy consumption of the system and helps save energy. Since the cleaning device can use mechanical energy in a power outage, the system has the ability to operate continuously. This helps to reduce downtime and improve production efficiency. The design of the input device can be customized according to different external devices and application requirements. This makes the system suitable for various mineral processing and filtration processes. Through gear transmission or belt transmission between the input device and the automatic cleaning device, the system can effectively convert external mechanical energy into cleaning operation, thereby ensuring the efficiency and sustainability of the filter. This design plays an important role in ore beneficiation.

[0011] Further, the cleaning operation of the automatic cleaning device is automatically triggered based on the degree of contamination of the filter unit.

[0012] The principle and beneficial effect of this solution are: such a setting can detect impurities, particulate matter or blockage on the filter unit, and one or more contamination thresholds are set. These thresholds represent the degree of contamination of the filter unit, and once these thresholds are exceeded, a cleaning operation is triggered. When the sensor detects that the degree of contamination of the filter unit exceeds the set threshold, the automatic cleaning device will be triggered. The cleaning device will perform a cleaning operation to remove dirt and impurities and restore the efficiency of the filter unit.

[0013] The automatic cleaning operation is triggered based on actual need and does not require manual intervention or regular maintenance. This improves the automation level of the system and reduces labor costs. The cleaning operation is triggered when the contamination level of the filter unit reaches a certain level, thus ensuring that the filter unit can still operate efficiently when the contamination level is low. This improves the overall efficiency of the filter. Since the cleaning operation is triggered when needed rather than on a regular basis, unnecessary cleaning can be avoided, saving resources such as energy and cleaning fluid, reducing wear and clogging on the filter unit, thereby extending the service life of the filter and reducing maintenance costs.

[0014] Furthermore, the cleaning frequency and method of the automatic cleaning device can be adjusted according to the type of ore and processing requirements.

[0015] The principle and beneficial effect of this solution are that different types of ores may have different pollution characteristics and therefore may require different cleaning frequencies and methods. Based on the identified ore type and processing requirements, the parameters of the cleaning device, such as cleaning frequency, cleaning intensity, and the amount of cleaning fluid used, can be automatically adjusted to monitor the degree of contamination of the filter unit and make adjustments based on real-time conditions. If the degree of contamination rises or falls rapidly, react quickly to ensure that the cleaning operation always adapts to the characteristics of the ore. The system that can adjust according to the type of ore and processing requirements has the best adaptability. It can optimize the cleaning operation according to different material characteristics and processing conditions to ensure the best performance of the system. Reducing the wear and maintenance requirements of the filter unit, thereby reducing maintenance costs, helps reduce the risk of system failure or shutdown, and improves the continuity and stability of production.

[0016] Furthermore, the brake device adjusts the input and output of mechanical energy by controlling the rotation speed of the flywheel to meet the requirements of the external device.

[0017] The principle and beneficial effects of this solution are as follows: Under normal power supply conditions, the motor transmits mechanical energy to the flywheel, causing the flywheel to start rotating and store mechanical energy. This is achieved by connecting the motor to the flywheel and transferring kinetic energy mechanically. The brake device controls the speed of the flywheel in a variety of ways to regulate the input and output of mechanical energy. This may include mechanical brakes, electromagnetic brakes, or other control mechanisms. The brake device can dynamically adjust the braking force or release the brake according to the requirements of the external device to achieve the required mechanical energy input or output. The system can flexibly adapt to the needs of external devices, accurately control the input and output of mechanical energy, and improve energy efficiency, stability, and safety.

[0018] Further, the mass, diameter and rotational speed of the flywheel are selected to meet the requirements for storing the desired mechanical energy.

[0019] The principle and beneficial effects of this solution are that it helps to improve the energy storage efficiency, availability and stability of the system, while reducing energy waste and maintenance costs, making the system more sustainable and cost-effective.

[0020] Furthermore, the mechanical energy storage device also includes a sensor capable of monitoring the state and performance parameters of the flywheel, and intelligently managing the energy storage unit through a control system.

[0021] The principle and beneficial effects of this solution are as follows: the sensors in the mechanical energy storage device are designed to monitor the state and performance parameters of the flywheel. These sensors can measure key parameters such as the speed, temperature, vibration, displacement, etc. of the flywheel. The data collected by the sensors is transmitted to the control unit or control system of the system. The intelligent management system performs intelligent management through the data from the sensors. It can formulate operating strategies based on the actual state and performance parameters of the flywheel to maximize the energy storage efficiency. The control system can make various decisions based on the sensor data, such as adjusting the brake device, optimizing the energy storage and release strategy, and performing preventive maintenance. The sensors and intelligent management system in the mechanical energy storage device help improve the performance, safety, energy efficiency and reliability of the system, while reducing maintenance costs, making the system more intelligent and sustainable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the structure of Example 1 of the present invention.

[0023] Figure 2 This is a partial structural diagram of the mechanical energy storage device of Example 1 of the present invention.

[0024] Figure 3 This is the original partial mineral processing equipment flow chart.

[0025] Figure 4 The flow chart of the part of the ore dressing equipment added by the present invention DETAILED DESCRIPTION

[0026] The following is a further detailed description through specific implementation methods:

[0027] The figure marks in the drawings of the specification include: 1. motor; 2. filter unit; 3. automatic cleaning device; 4. pressure difference controller; 5. intelligent management system; 6. sensor; 7. mechanical energy storage device; 701. flywheel; 702. brake device.

[0028] Embodiment 1 is basically as attached Figure 1 , Figure 2 As shown:

[0029] This solution includes multiple key components: a filter unit 2, an automatic cleaning device 3, a motor 1, a mechanical energy storage device 7, a pressure difference controller 4 and a sensor 6. Below we will introduce their working principles and beneficial effects one by one.

[0030] The filter unit 2 is the core part of the whole system, which is used to filter the ore or ore mixture. During the ore dressing process, impurities and waste residues will accumulate in the filter unit 2, resulting in a decrease in the filtration efficiency. In order to maintain the efficient operation of the filter, the automatic cleaning device 3 periodically cleans the filter unit 2 to ensure its normal operation.

[0031] The mechanical energy storage device 7 includes a brake device 702 capable of controlling the rotation speed of the flywheel 701, and an input device connected to an external device through a set of gears or belts. Under normal power supply conditions, the motor 1 transmits mechanical energy to the flywheel 701, causing the flywheel 701 to start rotating and store mechanical energy. This is achieved by connecting the motor 1 to the flywheel 701 and transferring kinetic energy mechanically. The mechanical energy storage device 7 also includes a sensor 6 capable of monitoring the state and performance parameters of the flywheel 701, and intelligently managing the energy storage unit through a control system. The data collected by the sensor 6 is transmitted to the control unit or control system of the system, and the intelligent management system 5 formulates an operating strategy based on the sensor 6 data to maximize the energy storage efficiency.

[0032] When the system detects a power outage or power interruption, the automatic switching device starts to work and switches the system to the backup power mode. The mechanical energy storage device 7 plays a key role. The motor 1 stops running, but the flywheel 701 in the mechanical energy storage device 7 still has rotational kinetic energy, which can continue to drive the operation of the filter unit 2 and the automatic cleaning device 3. At this time, the filter unit 2 continues to filter the ore, and the differential pressure controller 4 continues to monitor the status of the filter unit 2.

[0033] The cleaning operation of the filter unit 2 is automatically triggered based on the degree of contamination of the filter unit 2. The sensor 6 monitors the state of the filter unit 2, and once the pressure difference is detected to exceed a preset threshold, the automatic cleaning device 3 will be triggered. The cleaning operation can be performed in a variety of ways, such as spraying cleaning liquid, vibration or mechanical scraping, to remove dirt and impurities on the filter unit 2 to ensure filtering efficiency.

[0034] Adjust according to the type of ore and processing requirements. Different types of ores may have different contamination characteristics and may therefore require different cleaning frequencies and methods. The system monitors the degree of contamination of the filter unit 2 through sensors 6 and adjusts the cleaning parameters according to the real-time situation to ensure that the cleaning operation always adapts to the characteristics of the ore.

[0035] The brake device 702 adjusts the input and output of mechanical energy to meet the requirements of the external device by controlling the speed of the flywheel 701. This ensures that the system can flexibly adapt to the needs of the external device, accurately control the input and output of mechanical energy, and improve energy efficiency, stability and safety.

[0036] The mass, diameter and rotation speed of the flywheel 701 are selected to meet the requirements of the mechanical energy required for storage. This helps to improve the energy storage efficiency, availability and stability of the system, while reducing energy waste and maintenance costs, making the system more sustainable and cost-effective.

[0037] The innovation of this case is to combine the mechanical energy storage device 7 with the automatic cleaning filter, so that the system can continue to operate in the power outage state, solving the problem that automatic filtering and cleaning cannot be achieved during power outage. Since this solution is connected to other equipment, such as at the water inlet of the clean water pump pool, it effectively prevents solid particles from entering the clean water pump pool, protects the flow parts of the multi-stage pump, extends its service life, reduces maintenance costs, effectively prevents solid particles from entering the lower part of the float, maintains the sealing performance of the float, improves its pressure transmission efficiency, reduces energy consumption, effectively prevents solid particles from entering the slurry conveying pipeline, and maintains the stability of the conveyed slurry. Improve the effective output power, save energy and increase efficiency, reduce impurities and particles in the water, thereby reducing the wear and leakage of the packing, and improving the sealing performance and output pressure of the pump. At the same time, the service life of the packing can be extended, and the number and cost of replacement and maintenance can be reduced. Protect other components such as the pump cylinder and diaphragm, and reduce the risk of wear and damage. The newly added circulating clean water automatic backwashing filtration system has high reliability, high automation and low power consumption. This solution can also be cleaned regularly by circulating clean water automatic backwashing to remove impurities and particles on the net and maintain the filtering effect. This method can not only improve the reliability and stability of the equipment, but also improve the degree of automation, reduce manual operation and monitoring, and at the same time, this method can also reduce power consumption and operating costs. Reduce production water consumption, improve the wear of the water isolation pump float, and reduce the phenomenon of clean water leaking from the diaphragm into the transported liquid, so as to reduce the loss and waste of clean water, thereby reducing production water consumption.

[0038] In summary, this solution not only improves production efficiency, but also reduces energy waste and maintenance costs, making the ore dressing industry more sustainable and cost-effective. The adaptability and intelligent management of this solution also make it suitable for various ore types and processing requirements, improving the versatility and flexibility of the system.

[0039] The above is only an embodiment of the present invention, and the common knowledge such as the known specific structure and characteristics in the scheme is not described in detail here. It should be pointed out that for those skilled in the art, several deformations and improvements can be made without departing from the structure of the present invention, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A filtering device for protecting a flow-through component of a multi-stage pump supporting a water isolation pump, comprising a filtering unit (2) for filtering ore or a mixture of ore, an automatic cleaning device (3) for periodically cleaning the filtering unit (2) to prevent clogging, and a motor (1) for providing power, characterized in that: A mechanical energy storage device (7) and a pressure difference controller (4), wherein the mechanical energy storage device is electrically connected to and cooperates with the pressure difference controller (4), and the mechanical energy storage device (7) comprises a brake device (702) capable of controlling the rotation speed of a flywheel (701), and an input device connected to an external device via a set of gears or belts.

2. A filter device for protecting the flow parts of a multi-stage pump supporting a water isolation pump according to claim 1, characterized in that: The input device and the output are connected to the automatic cleaning device (3) via a set of gears.

3. A filter device for protecting the flow parts of a multi-stage pump supporting a water isolation pump according to claim 1, characterized in that: The cleaning operation of the automatic cleaning device (3) is automatically triggered based on the degree of contamination of the filter unit (2).

4. A filter device for protecting the flow parts of a multi-stage pump supporting a water isolation pump according to claim 1, characterized in that: The cleaning frequency and method of the automatic cleaning device (3) can be adjusted according to the type of ore and processing requirements.

5. A filter device for protecting the flow parts of a multi-stage pump supporting a water isolation pump according to claim 1, characterized in that: The brake device (702) adjusts the input and output of mechanical energy by controlling the rotation speed of the flywheel (701) to meet the requirements of the external device.

6. A filter device for protecting the flow parts of a multi-stage pump supporting a water isolation pump according to claim 1, characterized in that: The mass, diameter and rotational speed of the flywheel (701) are selected to meet the requirements for storing the desired mechanical energy.

7. A filter device for protecting the flow parts of a multi-stage pump supporting a water isolation pump according to claim 1, characterized in that: The mechanical energy storage device (7) further comprises a sensor (6) capable of monitoring the state and performance parameters of the flywheel (701), and intelligently managing the energy storage unit through a control system.

Images