Intelligent plate removing system of filter press

Abstract

According to the intelligent plate removing system of the filter press, the concentration value of underflow of the thickener is collected through the data collection module, and the collected data information is transmitted to the control system through the wireless transmission module. A control instruction is sent out through the control module, so that the filter plate lifting module performs laser positioning according to instruction information, the position of the filter plate is quickly determined, and the filter plate is lifted through the cooperation of the magnetic suction mechanism and the lifting positioning beam. The vibration module is arranged in the system, and discharging is conducted through high-frequency vibration. According to the system, personnel are prevented from following the unloading trolley to assist unloading, the personnel cost is reduced, unsafe factors caused by personnel auxiliary unloading are reduced, the working efficiency of the tailing filter press is greatly improved, the slime water yield efficiency of a coal preparation plant is remarkably improved by the tailing filter press efficiency improving device, the smooth washing process is ensured, the washing cost is reduced, and the economic benefit is increased. The product quality is guaranteed, production accidents are avoided, and economic benefits are brought to enterprises.

Description

Technical Field

[0001] The present application relates to the technical field of washing equipment, and in particular to an intelligent plate removal system for a filter press. Background Art

[0002] Coal washing refers to the process of separating clean coal that meets the user's quality requirements from raw coal, also known as coal washing. This process mainly uses the difference in physical properties between coal and gangue (or other impurities), such as different densities or characteristics, to separate them in different media. The flotation process in coal washing, also known as flotation coal separation or simply flotation, is a method of separation based on the difference in physical and chemical properties of the mineral surface. The flotation process mainly uses the different hydrophilicity of coal particles and gangue to achieve the separation of the two.

[0003] In the process of coal washing, filter press is a common tool with wide application. The basic structure of filter press includes head plate, tail plate, filter plate, hydraulic cylinder, main beam, transmission and pulling device. During the filtration process, the feed pump transports the tail coal slurry water from the feed hole of the tail plate to the filter chamber. When the filter chamber is full of slurry, the filtration process begins, and the tail coal slurry water is separated into solid and liquid with the help of the pressure of the feed pump. When the specified filtration time is reached, the feeding is stopped and the filtration process is completed. Then, the hydraulic system is operated to return the head plate to its original position, and then the filter plates are pulled apart one after another through the transmission chain on the transmission and pulling device. The filter cake falls off with its own weight and is transported away by the conveyor at the bottom.

[0004] With the promotion and application of flotation technology in the coal washing production process, problems in the flotation process have gradually been discovered. For example, there is a large amount of high-ash fine mud in the tail coal slime water, which makes the filter cake of the tail coal filter press wet and sticky, and difficult to fall off. It requires manual unloading, which seriously affects the working efficiency of the tail coal filter press. The reduction in the efficiency of coal slime water treatment affects the efficiency of coal sorting and even causes the coal preparation process to be unable to proceed normally. Utility Model Content

[0005] The present application provides an intelligent plate removal system for a filter press. By adding an automatic plate removal device on the basis of the existing structure of the filter press, the filter plate condition can be diagnosed during the operation of the filter press and the filter cake can be automatically removed from the plate. This is used to solve the problem that the filter cake of the existing filter press is difficult to fall off when removing the plate, manual unloading is required, and the working efficiency is low.

[0006] The present application provides an intelligent plate removal system for a filter press, comprising:

[0007] A filter plate lifting module, the filter plate lifting module includes a position adjustment mechanism, a magnetic suction mechanism, a vibration plate removal mechanism and a lifting positioning beam; the position adjustment mechanism is arranged on one side of the filter press, the magnetic suction mechanism is installed on the position adjustment mechanism, the vibration plate removal mechanism is located between the position adjustment mechanism and the magnetic suction mechanism, and the vibration plate removal mechanism is installed on the magnetic suction mechanism; the lifting positioning beam is installed on the filter plate in the filter chamber to assist in the positioning and lifting of the filter plate.

[0008] The data acquisition module includes a concentration detector and a weighing sensor arranged at the bottom of the filter chamber; one end of the weighing sensor is connected to the position adjustment mechanism, the other end of the weighing sensor is connected to the upper end of the vibration de-plate mechanism, and the lower end of the vibration de-plate mechanism is connected to the magnetic attraction mechanism.

[0009] The control module is configured to analyze the data collected by the data collection module and issue control instructions according to the analysis results.

[0010] The wireless transmission module is configured to transmit the information collected by the data collection module to the control module by wireless transmission.

[0011] In a feasible implementation, the position adjustment mechanism includes a horizontal movable slide, a lifting slide and a cantilever beam, the horizontal movable slide is arranged on the unloading trolley, and the lifting slide is slidably connected to the horizontal movable slide; the cantilever beam is fixedly connected to the lifting end of the lifting slide, and the weighing sensor is connected to the lower surface of the cantilever beam.

[0012] In a feasible implementation, the vibration plate-detaching mechanism includes a connecting plate, a shock-absorbing spring and a vibrator; the upper surface of the connecting plate is connected to the weighing sensor, and the lower surface of the connecting plate is connected to the magnetic attraction mechanism through the shock-absorbing spring.

[0013] In a feasible implementation, the magnetic attraction mechanism includes a mounting plate and an electromagnet, the upper surface of the mounting plate is connected to the shock absorbing spring, and the electromagnet is mounted on the mounting plate.

[0014] In a feasible implementation, it also includes a laser locator, which is installed at both ends of the mounting plate.

[0015] In a feasible implementation, a slide groove is provided on the horizontal movable slideway, the cross section of the slide groove is an inverted "T"-shaped structure, and the bottom of the lifting slide is a "T"-shaped structure adapted to the inverted "T"-shaped structure.

[0016] In a feasible implementation, a servo motor is provided at one end of the horizontal movable slide, a rotating shaft of the servo motor is connected to a screw rod, a threaded hole is provided at the bottom of the lifting slide, and the screw rod is threadedly connected to the threaded hole.

[0017] In a feasible implementation, the control module includes a PLC control system.

[0018] The application provides a filter press intelligent plate removal system, which collects the concentration value of the concentrator underflow through the data acquisition module, transmits the collected data information to the control system through the wireless transmission module, and establishes a corresponding mathematical model as the feedforward of the system according to the collected concentration value, that is, the peat water value. In this system, a control instruction is issued through the control module, and the filter plate lifting module performs laser positioning according to the instruction information, quickly determines the position of the filter plate, and uses the cooperation of the magnetic suction mechanism and the lifting positioning beam to lift the filter plate. A vibration module is provided in this system to unload by high-frequency vibration. When the unloading work is completed, the magnetic suction mechanism loses power and the filter plate is reset. This system avoids the personnel following the unloading trolley to assist in unloading, reduces the personnel cost, and reduces the unsafe factors of personnel assisting in unloading, greatly improves the working efficiency of the tail coal filter press, and the efficiency of the tail coal filter press can significantly improve the coal slime water treatment efficiency of the coal preparation plant, ensure the smooth progress of the washing process, reduce the washing cost, ensure product quality, avoid the occurrence of production accidents, and bring greater economic benefits to the enterprise. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the present application, the drawings required for use in the embodiments are briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0020] Figure 1 It is a structural schematic diagram of the intelligent plate removal system of the filter press provided by the present application;

[0021] Figure 2 It is a schematic diagram of the structure of the position adjustment mechanism of the intelligent plate removal system of the filter press provided by the present application;

[0022] Figure 3 This is the working flow chart of the intelligent plate removal system of the filter press provided in this application.

[0023] Description of reference numerals:

[0024] 1-filter plate lifting module; 11-position adjustment mechanism; 111-horizontal moving slide; 1111-slideway; 1113-servo motor; 1113-screw; 1114-threaded hole; 112-lifting slide; 113-cantilever beam; 12-magnetic suction mechanism; 121-mounting plate; 122-electromagnet; 13-vibration plate removal mechanism; 131-linking plate; 132-shock-absorbing spring; 133-vibrator; 14-lifting positioning beam; 2-data acquisition module; 21-weighing sensor; 22-laser locator; 3-control module; 4-wireless transmission module. DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0026] At present, in the process of tail coal sludge water treatment, due to the presence of a large amount of high-ash fine mud in the tail coal sludge water, the filter cake of the tail coal filter press is wet and sticky, and it is not easy to fall off, and manual unloading is required, which seriously affects the working efficiency of the tail coal filter press. The present application provides an intelligent plate removal system for the filter press, which avoids the need for personnel to follow the unloading trolley to assist in unloading, reduces personnel costs, and reduces the unsafe factors of personnel-assisted unloading. The promotion of this system can greatly improve the working efficiency of the tail coal filter press, and the improvement of the efficiency of the tail coal filter press can significantly improve the coal sludge water treatment efficiency of the coal preparation plant, ensure the smooth progress of the washing process, reduce the washing cost, ensure product quality, and effectively avoid the occurrence of production accidents. Bring greater economic benefits to the enterprise.

[0027] The specific structure of the intelligent plate removal system for the filter press provided in this application is described in detail below in conjunction with the accompanying drawings.

[0028] Reference Figure 1 and Figure 3 As shown, the embodiment of the present application provides an intelligent plate removal system for a filter press, comprising:

[0029] A filter plate lifting module 1, the filter plate lifting module 1 includes a position adjustment mechanism 11, a magnetic suction mechanism 12, a vibration plate removal mechanism 13 and a lifting positioning beam 14; the position adjustment mechanism 11 is arranged on one side of the filter press, the magnetic suction mechanism 12 is installed on the position adjustment mechanism 11, the vibration plate removal mechanism 13 is located between the position adjustment mechanism 11 and the magnetic suction mechanism 12, and the vibration plate removal mechanism 13 is installed on the magnetic suction mechanism 12; the lifting positioning beam 14 is installed on the filter plate in the filter chamber, and is used to assist in the positioning and lifting of the filter plate.

[0030] The data acquisition module 2 includes a concentration detector and a weighing sensor 21 arranged at the bottom of the filter chamber; one end of the weighing sensor 21 is connected to the position adjustment mechanism 11, and the other end of the weighing sensor 21 is connected to the upper end of the vibration de-plate mechanism 13, and the lower end of the vibration de-plate mechanism 13 is connected to the magnetic attraction mechanism 12.

[0031] The control module 3 is configured to analyze the data collected by the data collection module 2 and issue control instructions according to the analysis results.

[0032] The wireless transmission module 4 is configured to transmit the information collected by the data collection module 2 to the control module 3 by wireless transmission.

[0033] When the system is in use, data is first collected through the data collection module 2, that is, the concentration value of the coal slurry water is collected through the concentration detector at the bottom of the filter chamber, and a corresponding mathematical model is established according to the coal slurry water value as the system feedforward to judge the working time of the filter press. When the filter press is completed, a control signal is sent through the control module 3 to control the position adjustment mechanism 11 to move to the filter plate position, and the filter plate is lifted by cooperating with the lifting positioning beam 14 arranged on the filter plate through the magnetic suction mechanism 12.

[0034] In this system, the concentration detector may be a concentration meter or a density meter.

[0035] The magnetic attraction mechanism 12 in this system uses an electromagnet. When the current passes through the coil of the electromagnet, a magnetic field is generated. The magnetic field magnetizes the iron core and then generates magnetic force, thereby realizing the attraction of the electromagnet. When the current is disconnected, the magnetic field disappears, and the magnetic force disappears, and the filter plate is reset. The operation of the electromagnet can be controlled by controlling the on and off of the circuit. The filter plate is lifted by at least 1-2 cm through the magnetic attraction mechanism 12. After lifting, the weighing sensor 21 is weighed to determine whether the coal mud cake falls off. Part of the coal mud cake falls off under the action of gravity. At this time, the weight weighed by the weighing sensor 21 is approximately equal to the weight of the filter plate itself. When the weight weighed by the weighing sensor 21 is greater than the weight of the filter plate itself, it means that the coal mud cake attached to the filter plate has not completely fallen off. At this time, it is necessary to take corresponding means to assist the coal mud cake to fall off. The current auxiliary means mainly adopt the method of manual intervention, which increases the labor cost, and there are certain safety hazards and low efficiency. In this application, a vibration plate removal mechanism 13 is set to assist the coal mud cake to fall off from the filter plate. When the coal slime cake falls off from the filter plate, the position adjustment mechanism 11 moves to the next filter plate, and the above operation is repeated until the coal slime cakes attached to all the filter plates fall off.

[0036] In some embodiments, the vibration plate-removing mechanism 13 includes a connecting plate 131, a shock-absorbing spring 132 and a vibrator 133; the upper surface of the connecting plate 131 is connected to the weighing sensor 21, and the lower surface of the connecting plate 131 is connected to the magnetic attraction mechanism 12 through the shock-absorbing spring 132. A plurality of shock-absorbing springs 132 and a plurality of vibrators 133 are installed on the connecting plate 131. The vibrator 133 generates high-frequency vibration after being energized, thereby causing the coal sludge cake to fall off the filter plate. The shock-absorbing spring 132 plays a buffering role to prevent the vibration impact force from damaging the system structure.

[0037] In some embodiments, continue to refer to Figure 1 As shown, the position adjustment mechanism 11 includes a horizontal movable slide 111, a lifting slide 112 and a cantilever beam 113. The horizontal movable slide 111 is arranged on the unloading trolley, and the lifting slide 112 is connected to the horizontal movable slide 111 in a sliding manner; the cantilever beam 113 is fixedly connected to the lifting end of the lifting slide 112, and the weighing sensor 21 is connected to the lower surface of the cantilever beam 113. The lifting slide 112 is perpendicular to the horizontal movable slide 111, driving the cantilever beam 113 to move up and down. When the magnetic attraction mechanism 12 on the cantilever beam 113 cooperates with the lifting and positioning beam 14 to grab the filter plate, the lifting slide 112 rises, driving the filter plate to lift. The lifting slide 112 can slide relative to the horizontal movable slide 111, which is convenient for position adjustment, so that the magnetic attraction mechanism 12 is aligned with the lifting and positioning beam 14.

[0038] In some embodiments, the magnetic attraction mechanism 12 includes a mounting plate 121 and an electromagnet 122, the upper surface of the mounting plate 121 is connected to the shock absorbing spring 132, and the electromagnet 122 is mounted on the mounting plate 121. In some embodiments, the data acquisition module 2 also includes a laser locator 22, and the laser locator 22 is mounted at both ends of the mounting plate 121. The laser locator 22 determines the distance and orientation of the object by measuring the time it takes for the laser beam to reflect back after irradiating the object, as well as the intensity and direction of the light. The control module 3 issues a control instruction based on the position information collected by the laser locator 22 to control the movement of the position adjustment mechanism 11, thereby realizing automatic identification and accurate positioning.

[0039] In some embodiments, reference Figure 2 As shown, the horizontal moving slide 111 is provided with a slide groove 1111, the cross section of the slide groove 1111 is an inverted "T" shaped structure, and the bottom of the lifting slide 112 is a "T" shaped structure adapted to the inverted "T" shaped structure. This arrangement improves the stability of the structure and prevents the lifting slide 112 from falling out of the horizontal moving slide 111 during the sliding process.

[0040] In some embodiments, a servo motor 1112 is disposed at one end of the horizontal moving slide 111, a screw 1113 is connected to the rotating shaft of the servo motor 1112, a threaded hole 1114 is provided at the bottom of the lifting slide 112, and the screw 1113 is threadedly connected to the threaded hole 1114. The servo motor converts the received electrical signal into an angular displacement or angular velocity output of the motor to drive the control object, and can accurately control the speed and position accuracy.

[0041] In some embodiments, the control module 3 adopts a PLC control system. The design of the PLC control system allows it to adapt to various industrial environments and application requirements. Flexible adjustment through programming makes operation and maintenance simple and convenient. PLC has a high degree of reliability and can operate stably in harsh industrial environments.

[0042] According to the above technical features, the intelligent plate-removing system for filter press provided by the present application performs data acquisition through the data acquisition module 2, that is, the concentration value of coal slurry water is collected through the concentration detector at the bottom of the filter chamber, and the corresponding mathematical model is established as the system feedforward according to the coal slurry water value to judge the working time of the filter press. When the filter press is completed, a control signal is sent through the control module 3 to control the position adjustment mechanism 11 to move to the filter plate position, and the filter plate is lifted by the magnetic suction mechanism 12 in cooperation with the lifting and positioning beam 14 set on the filter plate. The filter plate is lifted by at least 1-2 cm through the magnetic suction mechanism 12. After lifting, the weighing sensor 21 is weighed to determine whether the coal slurry cake falls off. Part of the coal slurry cake falls off under the action of gravity. At this time, the weight measured by the weighing sensor 21 is approximately equal to the weight of the filter plate itself. When the weight measured by the weighing sensor 21 is greater than the weight of the filter plate itself, the vibration plate-removing mechanism 13 is started, and the high-frequency vibration of the vibrator 133 is used to cause the coal slurry cake to fall off the filter plate. The present application provides an intelligent plate removal system for a filter press, which avoids the need for personnel to follow a discharging trolley to assist in discharging, reduces personnel costs, and reduces the unsafe factors of personnel assisting in discharging. The promotion of this system can greatly improve the working efficiency of the tail coal filter press.

[0043] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on the several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.

[0044] The above specific implementation methods further explain in detail the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above are only specific implementation methods of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. An intelligent plate removal system for a filter press, characterized in that: include: A filter plate lifting module (1), the filter plate lifting module (1) comprising a position adjustment mechanism (11), a magnetic attraction mechanism (12), a vibration plate removal mechanism (13) and a lifting positioning beam (14); the position adjustment mechanism (11) is arranged on one side of the filter press, the magnetic attraction mechanism (12) is installed on the position adjustment mechanism (11), the vibration plate removal mechanism (13) is located between the position adjustment mechanism (11) and the magnetic attraction mechanism (12), and the vibration plate removal mechanism (13) is installed on the magnetic attraction mechanism (12); the lifting positioning beam (14) is installed on the filter plate in the filter chamber and is used to assist in the positioning and lifting of the filter plate; The data acquisition module (2) comprises a concentration detector and a weighing sensor (21) arranged at the bottom of the filter chamber; one end of the weighing sensor (21) is connected to the position adjustment mechanism (11), the other end of the weighing sensor (21) is connected to the upper end of the vibration plate removal mechanism (13), and the lower end of the vibration plate removal mechanism (13) is connected to the magnetic attraction mechanism (12); A control module (3) is configured to analyze the data collected by the data collection module (2) and issue control instructions according to the analysis results; The wireless transmission module (4) is configured to transmit the information collected by the data collection module (2) to the control module (3) by wireless transmission.

2. The intelligent plate removal system for filter press according to claim 1 is characterized in that: The position adjustment mechanism (11) comprises a horizontal movable slideway (111), a lifting slide (112) and a cantilever beam (113); the horizontal movable slideway (111) is arranged on a discharge trolley; the lifting slide (112) is connected to the horizontal movable slideway (111) in a sliding manner; the cantilever beam (113) is fixedly connected to the lifting end of the lifting slide (112); and the weighing sensor (21) is connected to the lower surface of the cantilever beam (113).

3. The intelligent plate removal system for filter press according to claim 2 is characterized in that: The vibrating plate-detaching mechanism (13) comprises a connecting plate (131), a shock-absorbing spring (132) and a vibrator (133); the upper surface of the connecting plate (131) is connected to the weighing sensor (21), and the lower surface of the connecting plate (131) is connected to the magnetic attraction mechanism (12) via the shock-absorbing spring (132).

4. The intelligent plate removal system for filter press according to claim 3 is characterized in that: The magnetic attraction mechanism (12) comprises a mounting plate (121) and an electromagnet (122); the upper surface of the mounting plate (121) is connected to the shock absorbing spring (132); and the electromagnet (122) is mounted on the mounting plate (121).

5. The intelligent plate removal system for filter press according to claim 4 is characterized in that: It also includes a laser locator (22), which is installed at both ends of the installation plate (121).

6. The intelligent plate removal system for filter press according to claim 2 is characterized in that: The horizontal movable slideway (111) is provided with a slide groove (1111), the cross section of the slide groove (1111) is an inverted "T"-shaped structure, and the bottom of the lifting slide (112) is a "T"-shaped structure that matches the inverted "T"-shaped structure.

7. The intelligent plate removal system for filter press according to claim 6 is characterized in that: A servo motor (1112) is provided at one end of the horizontal moving slideway (111), a rotating shaft of the servo motor (1112) is connected to a screw rod (1113), a threaded hole (1114) is provided at the bottom of the lifting slide (112), and the screw rod (1113) is threadedly connected to the threaded hole (1114).

8. The intelligent plate removal system for filter press according to claim 1 is characterized in that: The control module (3) comprises a PLC control system.

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