Automatic water replenishing system of stacker-reclaimer

Abstract

The utility model provides an automatic water replenishing system of a stacker-reclaimer. The automatic water replenishing system comprises a water tank, a water feeding pump, an electric cabinet, a PLC (Programmable Logic Controller), a Beidou locator, a travelling crane proximity switch and a travelling crane track corrector, the input end of the feed pump is connected with the water tank, and the output end is connected with the dry fog dust suppression terminal box; an ultrasonic liquid level meter and a spring cover plate are mounted on an upper cover of the water tank; a water replenishing pipe is led out from the spring cover plate to the outer side from the water tank; the tail end of the water replenishing pipe is connected with a water supply pipe; a water supply pipe valve is mounted on the water supply pipe; the PLC and the Beidou locator are both arranged in a cab of the stacker-reclaimer crane; the traveling crane proximity switch is mounted on the stacker-reclaimer traveling crane; the crane rail corrector is mounted on the side of a crane rail of the stacker-reclaimer crane; and the travelling crane proximity switch is interlocked with the travelling crane track corrector. The automatic water replenishing device is stable in operation, can achieve the purpose of automatic water replenishing, and can effectively solve the problems of clean water replenishing, winter water replenishing and automatic water replenishing in the background technology.

Description

Technical Field

[0001] This utility model relates to the field of mechanical manufacturing technology, specifically to an automatic water replenishment system for a stacker-reclaimer. Background Technology

[0002] Stacker-reclaimers generate a large amount of dust during stacking and reclaiming operations. To protect the environment and achieve clean operations, stacker-reclaimers commonly install dry fog dust suppression systems at transfer points, material drop points, and bucket wheel stacking / reclaim points to purify the dust. This system mainly consists of a water tank located at the tail of the stacker, a water pump, a feed pump, water suction pipes, water supply pipes, water supply nozzles, solenoid valves, and a water storage tank located on one side of the track below the trolley. The system works by using a water pump to draw water from the water tank on the side of the track into the water tank at the tail of the stacker-reclaimer, stopping when the water level reaches a high level. When spraying is required, the feed pump draws water from the water tank into the dry fog dust suppression system around the material drop point. A level controller controls the solenoid valves to operate the dry fog dust suppression system. The atomized droplets condense with the dust from the material flow and fall back into the material pile, achieving a good dust suppression effect.

[0003] However, this water replenishment method has obvious drawbacks. First, the water in the water tank is difficult to seal, and dust from the material yard will fall into the water tank, polluting the water source and causing blockage of the atomizing nozzles, affecting the atomization effect and dust suppression effect. Second, the water in the water tank is prone to freezing in winter, making it difficult to extract water.

[0004] Against this backdrop, the development of a clean water replenishment system, a water replenishment system that does not affect operation in winter, and an automated water replenishment system has become an urgent priority. Utility Model Content

[0005] To address the technical problems existing in the background art mentioned above, this utility model proposes an automatic water replenishment system for a stacker-reclaimer. Its structure is reasonably designed, its operation is stable, and it can achieve the goal of automatic water replenishment. It can effectively solve the dust problems of clean water replenishment, winter water replenishment, and automatic water replenishment mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides an automatic water replenishment system for a stacker-reclaimer, including a water tank and a water pump matched and installed on the upper part of the stacker-reclaimer trolley; the input end of the water pump is connected to the water tank through a pipe, and the output end of the water pump is connected to a water supply pipeline and connected to a dry fog dust suppression terminal box installed on the stacker-reclaimer through the water supply pipeline; an ultrasonic level gauge is installed on one side of the upper cover of the water tank, and a water inlet is provided on the other side of the upper cover, with a spring cover plate matched and installed at the water inlet; a water replenishment pipe is led out from the spring cover plate from the inside of the water tank to the outside; the end of the water replenishment pipe is matched and connected to a water supply pipe; when water is replenished to the water tank, the spring cover plate is opened by water pressure, and after the water tank is full, the spring cover plate automatically seals the upper cover of the water tank;

[0007] A water supply valve is installed on the water supply pipe.

[0008] The automatic water replenishment system also includes an electrical control box, a PLC controller, a Beidou positioner, a trolley proximity switch, and a trolley track corrector;

[0009] Both the PLC controller and the Beidou positioner are installed in the cab of the stacker-reclaimer crane.

[0010] The crane proximity switch is matched and installed on the stacker-reclaimer crane; the crane track corrector is matched and installed on the side of the crane track of the stacker-reclaimer crane; the crane proximity switch and the crane track corrector are interlocked.

[0011] The automatic water replenishment system for the stacker-reclaimer includes: the water supply pipe valves include a manual ball valve and a solenoid valve; the manual ball valve and the solenoid valve are connected in series on the water supply pipe; the solenoid valve is interlocked with the ultrasonic level gauge of the water tank and is controlled to start and stop by the PLC controller.

[0012] The automatic water replenishment system for the stacker-reclaimer includes: the electrical control box is installed on the stacker-reclaimer trolley, and its interior is equipped with circuit breakers QF0~QF1 connected in series and relay KA1; one end of the switch of relay KA1 is connected to the circuit output terminal of circuit breaker QF1, and the other end of the switch of relay KA1 is connected to the solenoid valve.

[0013] The automatic water replenishment system for the stacker-reclaimer includes: a PLC controller installed in the cab of the stacker-reclaimer; one end of the coil of relay KA1 connected to the neutral wire, and the other end of the coil of relay KA1 electrically connected to the output port of the PLC controller; the PLC controller is connected to the neutral wire and the live wire; and the input port of the PLC controller 5 is electrically connected to the ultrasonic level gauge.

[0014] The automatic water replenishment system for the stacker-reclaimer includes: a relay KAO1 and an alarm HB1 installed inside the electrical control box; one end of the high-voltage relay KAO1 is connected to the live wire, and the other end is connected to the power input terminal of the alarm HB1; the power output terminal of the alarm HB1 is connected to the neutral wire; one end of the tractor proximity switch is connected to the live wire, and the other end is connected to the low-voltage input terminal A2 of the relay KAO1; the low-voltage output terminal A1 of the relay KAO1 is connected to the neutral wire.

[0015] The automatic water replenishment system for the stacker-reclaimer includes a high-pressure centrifugal water pump as the water supply pump.

[0016] The automatic water replenishment system for the stacker-reclaimer includes a crane proximity switch that is a magnetic field induction proximity switch that generates an electromagnetic signal when passing through two crane track correctors.

[0017] The automatic water replenishment system for the stacker-reclaimer, wherein the water replenishment pipe is a cantilever water replenishment pipe.

[0018] By adopting the above technical solution, this utility model has the following beneficial effects:

[0019] The automatic water replenishment system for the stacker-reclaimer of this utility model has a simple and reasonable structural design, which can ensure the normal operation of the dust removal system of the stacker-reclaimer, protect the environment, improve the working conditions of workers, and achieve the requirements of ultra-low emissions.

[0020] This utility model's automatic water replenishment system for a stacker-reclaimer employs a complete BeiDou positioning system to achieve low-deviation positioning between the trolley and the water tank supply pipe, with a positioning distance deviation of ±5cm. It utilizes an automatic water replenishment control method, with a solenoid valve interlocked with the ultrasonic level gauge in the water tank. Water replenishment is automatic when the water level is low and stops when the water level is high. A cantilevered water replenishment pipe is used, with a spring-loaded cover at the water tank inlet. Water replenishment is initiated by the pressure of the replenishment water, and the spring-loaded cover automatically closes after replenishment to prevent dust contamination of the water source. The system interlocks the trolley proximity switch with two trolley track correctors. When the trolley proximity switch encounters the first track corrector, the trolley slows down from high speed; when it encounters the second track corrector, the trolley stops at low speed, ensuring accurate positioning. Insulation of the pipelines and equipment, along with the addition of heating tape, prevents freezing and ensures the normal operation of the water supply system, achieving the goal of automated water replenishment. Attached Figure Description

[0021] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the overall structure of the automatic water replenishment system for the stacker-reclaimer of this utility model;

[0023] Figure 2 This is a partial structural schematic diagram of the automatic water replenishment system for the stacker-reclaimer of this utility model;

[0024] Figure 3 This is another partial structural diagram of the automatic water replenishment system for the stacker-reclaimer of this utility model;

[0025] Figure 4This is a schematic diagram of the PLC controller controlling the ultrasonic level gauge and solenoid valve in the automatic water replenishment system of the stacker-reclaimer of this utility model.

[0026] Figure 5 This is the interlocking circuit diagram of the crane proximity switch in the automatic water replenishment system of the stacker-reclaimer of this utility model. Detailed Implementation

[0027] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0028] The present invention will be further explained below with reference to specific embodiments.

[0029] like Figure 1-3 As shown in the figure, the automatic water replenishment system for a stacker-reclaimer provided in this embodiment includes a water tank 1, a water pump 2, a water supply pipe valve 3, an electrical control box 4, a PLC controller 5, a Beidou positioner 6, a crane proximity switch 7, and a crane track corrector 8.

[0030] The water tank 1 is installed at the upper part of one end of the stacker-reclaimer trolley. An ultrasonic level gauge 11 is installed on one side of its top cover, and a spring cover plate 12 is installed on the other side of the top cover. A water supply pipe 13 extends from the inside of the water tank 1 to the outside through the spring cover plate 12. The water supply pipe 13 is a cantilever water supply pipe, which extends from the top of the water tank 1 to the bottom and is connected to a water supply pipe 14 at the extended end. When water is added to the water tank 1, the spring cover plate 12 is opened by water pressure. After the water tank is full, the spring cover plate 12 automatically seals the top cover of the water tank 1.

[0031] The water pump 2 is installed above the stacker-reclaimer trolley and beside the water tank 1. Its input end is connected to the water tank 1 via a pipe, and its output end is connected to a water supply pipe 21, which in turn connects to a dry fog dust suppression terminal box 9 installed around the stacker-reclaimer's rotating bucket wheel. The water pump 2 pumps water to the nozzles of the dry fog dust suppression terminal box 9, atomizing it into droplets. This mist humidifies and increases the weight of dust generated during unloading and stacking of materials by the bucket wheel, thus achieving dust reduction. In this embodiment, the water pump 2 is a high-pressure centrifugal water pump.

[0032] The water supply valve 3 is installed on the water supply pipe 14 and includes a manual ball valve 31 and a solenoid valve 32. The solenoid valve 32 is interlocked with the ultrasonic level gauge 11 of the water tank and is controlled to start and stop by the PLC controller 5. In this embodiment, the solenoid valve 32 is either a solenoid valve or an electric ball valve.

[0033] like Figure 4As shown, the electrical control box 4 is installed on the stacker-reclaimer trolley next to the water supply pipe 13. Inside, there are circuit breakers QF0~QF1 connected in series and relay KA1. One end of the switch of relay KA1 is connected to the circuit output terminal of circuit breaker QF0~QF1, and the other end of the switch is connected to solenoid valve 32.

[0034] The PLC controller 5 is located in the cab of the stacker-reclaimer crane. Terminal A1 of the coil of relay KA1 is connected to the neutral wire, and terminal A2 of the coil of relay KA1 is electrically connected to the output port of the PLC controller 5. Simultaneously, the PLC controller 5 is connected to both the neutral and live wires. The input port of the PLC controller 5 is electrically connected to the ultrasonic level gauge 11. When the water level in the tank is low, the ultrasonic level gauge 11 sends a signal to the PLC controller 5. The PLC controller 5 then controls the solenoid valve 32 to open via the coil of relay KA1, replenishing water to the water tank 12. When the water level in the tank 12 is high, the ultrasonic level gauge 11 sends a signal to the PLC controller 5. The PLC controller 5 then controls the solenoid valve 32 to close via the coil of relay KA1, stopping the replenishment of water to the water tank 12.

[0035] The Beidou locator 6 is installed in the cab of the stacker-reclaimer trolley and uses Beidou automatic positioning.

[0036] like Figure 5 As shown, the electrical control box 4 also houses a relay KAO1 and an alarm HB1. One end of the high-voltage relay KAO1 is connected to the live wire, and the other end is connected to the power input terminal of the alarm HB1; the power output terminal of the alarm HB1 is connected to the neutral wire; one end of the vehicle proximity switch 7 is connected to the live wire, and the other end is connected to the low-voltage terminal of the relay KAO1; the low-voltage output terminal of the relay KAO1 is connected to the neutral wire.

[0037] The crane proximity switch 7 is matched and installed on the wheel axle at the front end of the stacker-reclaimer crane and is interlocked with the crane track corrector 8.

[0038] The trolley track corrector 8 is installed on the side of the trolley track of the stacker-reclaimer trolley; there are two trolley track correctors 8, and the trolley proximity switch 7 is positioned through the two trolley track correctors 8; the trolley proximity switch 7 is a magnetic field induction proximity switch, which generates an electromagnetic signal when it approaches the trolley track corrector 8, and the internal switch closes to generate an electrical signal, energizing the alarm HB1. After receiving the alarm signal from the alarm HB1, the trolley driver begins to gradually stop. Because the trolley is very heavy, it is not possible to stop it completely in one go, so two stops are required, and the speed gradually decreases, just like the principle of subway stopping.

[0039] This utility model's automatic water supply system for a stacker-reclaimer uses a Beidou locator 6 for automatic positioning. The difference between the crane's parking position and the water tank's replenishment point is no more than 5cm, enabling automatic water replenishment and ensuring clean water supply while preventing clogging of the dry fog dust suppression nozzles. It employs multiple methods, including automatic positioning with the Beidou locator 6, parking by a combination of the crane proximity switch 7 and the crane track corrector 8, automatic water replenishment control via an interlock between the solenoid valve 32 and the ultrasonic level gauge 11 in the water tank, cantilevered water supply, and a spring-sealed cover 12. This system achieves automatic crane positioning, automatic water replenishment, and automatic sealing of the water tank 1 after water supply. It enables automatic water replenishment for dust removal, cleaning, and winter use, reducing water pollution and ensuring the atomization and dust suppression effect of the dust removal nozzles in the dry fog dust suppression terminal box 9. The automatic water replenishment via the Beidou locator 6 achieves the goals of timed water replenishment, cleaning water replenishment, and winter water replenishment.

[0040] This utility model has a reasonable structural design and stable operation, and can achieve the goal of automatic water replenishment. It can effectively solve the dust problems of clean water replenishment, winter water replenishment, and automatic water replenishment mentioned in the background technology.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. An automatic water replenishment system for a stacker-reclaimer, comprising a water tank (1) and a water pump (2) matched and installed on the upper part of the stacker-reclaimer trolley; the input end of the water pump (2) is connected to the water tank (1) through a pipe, and the output end of the water pump (2) is connected to a water supply pipeline (21) and connected to a dry fog dust suppression terminal box (9) installed on the stacker-reclaimer through the water supply pipeline (21); characterized in that: An ultrasonic level gauge (11) is installed on one side of the top cover of the water tank (1), and a water inlet is provided on the other side of the top cover. A spring cover plate (12) is installed at the water inlet. A water supply pipe (13) is led out from the inside of the water tank (1) from the spring cover plate (12) to the outside. A water supply pipe (14) is connected to the end of the water supply pipe (13). When water is added to the water tank (1), the spring cover plate (12) is opened by water pressure. After the water is filled, the spring cover plate (12) automatically seals the top cover of the water tank (1). A water supply valve (3) is installed on the water supply pipe (14); The automatic water replenishment system also includes an electrical control box (4), a PLC controller (5), a Beidou locator (6), a trolley proximity switch (7), and a trolley track corrector (8). The PLC controller (5) and the Beidou locator (6) are both installed in the cab of the stacker-reclaimer trolley; The crane proximity switch (7) is matched and installed on the stacker-reclaimer crane; the crane track corrector (8) is matched and installed on the side of the crane track of the stacker-reclaimer crane; the crane proximity switch (7) and the crane track corrector (8) are interlocked.

2. The automatic water replenishment system for a stacker-reclaimer as described in claim 1, characterized in that: The water supply pipe valve (3) includes a manual ball valve (31) and a solenoid valve (32); the manual ball valve (31) and the solenoid valve (32) are connected in series on the water supply pipe (14); the solenoid valve (32) is interlocked with the ultrasonic level gauge (11) of the water tank and is controlled to start and stop by the PLC controller (5).

3. The automatic water replenishment system for a stacker-reclaimer as described in claim 2, characterized in that: The electrical control box (4) is installed on the stacker-reclaimer trolley, and is equipped with circuit breakers QF0~QF1 and relay KA1 connected in series inside. One end of the switch of relay KA1 is connected to the circuit output terminal of circuit breaker QF1, and the other end of the switch of relay KA1 is connected to the solenoid valve (32).

4. The automatic water replenishment system for a stacker-reclaimer as described in claim 3, characterized in that: The PLC controller (5) is located in the cab of the stacker-reclaimer crane; one end of the coil of the relay KA1 is connected to the neutral wire, and the other end of the coil of the relay KA1 is electrically connected to the output port of the PLC controller (5); the PLC controller (5) is connected to the neutral wire and the live wire; the input port of the PLC controller (5) is electrically connected to the ultrasonic level gauge (11).

5. The automatic water replenishment system for a stacker-reclaimer as described in claim 1, characterized in that: The electrical control box (4) is also equipped with a relay KAO1 and an alarm HB1. One end of the high-voltage relay KAO1 is connected to the live wire, and the other end is connected to the power input terminal of the alarm HB1. The power output terminal of the alarm HB1 is connected to the neutral wire. One end of the vehicle proximity switch (7) is connected to the live wire, and the other end is connected to the low-voltage input terminal A2 of the relay KAO1. The low-voltage output terminal A1 of the relay KAO1 is connected to the neutral wire.

6. The automatic water replenishment system for a stacker-reclaimer as described in claim 1, characterized in that: The water supply pump (2) is a high-pressure centrifugal water supply pump.

7. The automatic water replenishment system for a stacker-reclaimer as described in claim 1, characterized in that: The trolley track corrector (8) has two units; the trolley proximity switch (7) is a magnetic field induction proximity switch, and the trolley proximity switch (7) generates an electromagnetic signal when passing through the two trolley track correctors (8).

8. The automatic water replenishment system for a stacker-reclaimer as described in claim 1, characterized in that: The water supply pipe (13) is a cantilever water supply pipe.

Images