Sprinkling anti-freezing device for strip mine mining operation

Abstract

The utility model discloses a watering anti-freezing device for strip mine mining operation, which is arranged on a watering cart and comprises a power supply, a main control module, a plurality of water spraying branches, a plurality of temperature control loops and a heater, the power supply is used for providing three-phase voltage for the water spraying branch; the water spraying branches are connected in parallel, and each water spraying branch comprises an inductive switch and a nozzle; the main control module is connected with the power supply and is used for selectively conducting each water spraying branch; the temperature control loops are in one-to-one correspondence with the water spraying branches, one side of each temperature control loop is connected with a power supply through an inductive switch, and the other side of each temperature control loop is connected with a heater; and the heater heats or stops heating the nozzle according to an output signal of the temperature control loop. According to the utility model, the heater is controlled by the output signal of the temperature control loop to heat or stop heating the spray head, so that the frozen retained water in the pipeline between the spray head and the water storage tank is melted.

Description

Technical Field

[0001] The utility model belongs to the technical field of water sprinklers, and in particular relates to a water sprinkler antifreeze device used for open-pit mining operations. Background Art

[0002] During open-pit mining operations, dust is the most common air pollution generated during the construction process. In order to facilitate continuous mining operations, sprinkler trucks are generally deployed at the work site to spray and reduce dust. However, during mining operations in high-altitude areas in winter, due to the influence of high-altitude temperatures, the sprinkler trucks often freeze. This factor leads to serious dust during mining operations in high-altitude areas in winter. Utility Model Content

[0003] In order to solve the problem that the factor described in the background technology causes serious dust generation during mining operations in high altitude areas in winter, the utility model proposes the following technical solutions:

[0004] A watering and antifreeze device for open-pit mining operations is arranged in a water storage tank in a watering truck, and comprises: a power supply, a main control module, a water spraying branch, a temperature control circuit and a heater; the power supply is used to provide three-phase voltage for the water spraying branch; each of the water spraying branches is connected in parallel with each other, and each of the water spraying branches comprises: an induction switch and a nozzle; the main control module is connected to the power supply, and the main control module is used to selectively conduct each of the water spraying branches; the temperature control circuit corresponds to the water spraying branch one by one, one side of each of the temperature control circuits is connected to the power supply through the induction switch, and the other side of each of the temperature control circuits is connected to the heater; the heater heats or stops heating the nozzle according to the output signal of the temperature control circuit.

[0005] Wherein, the temperature control circuit includes: an integrator, a first thermistor, and a second thermistor; the power supply end of the integrator is connected to the power supply, the input end of the integrator is respectively connected to the first thermistor and the second thermistor, and the output end of the integrator is connected to the heater.

[0006] Furthermore, the output end of the integrator includes a positive end and a negative end, and the phase of the output signal of the positive end differs from the phase of the output signal of the negative end by 180°.

[0007] Furthermore, the water spray branch also includes a relay, and the relay is arranged between the switch and the spray head.

[0008] Furthermore, when the heater receives the signal output from the positive end, the heater heats the nozzle of the water storage tank; when the heater receives the signal output from the negative end, the heater stops heating the nozzle.

[0009] Beneficial effect: The utility model controls the heater to heat or stop heating the nozzle through the output signal of the temperature control circuit, thereby melting the frozen retained water in the pipeline between the nozzle and the water storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a structural schematic diagram of a water sprinkling and antifreezing device for open-pit mining according to an embodiment of the utility model;

[0011] Figure 2 It is a structural schematic diagram of a temperature control circuit according to an embodiment of the utility model. DETAILED DESCRIPTION

[0012] In order to make the purpose, technical solution and advantages of the present application clearer, the present invention will be described in further detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0013] It should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this patent.

[0014] Figure 1 The present invention is a schematic diagram of a frame structure of a water sprinkling and antifreezing device for open-pit mining operations according to an embodiment of the present invention.

[0015] Reference Figure 1According to an embodiment of the utility model, a watering and antifreezing device for open-pit mining operation includes: a watering vehicle, including: a power supply 1, a main control module 2, multiple water spraying branches 3, multiple temperature control circuits 4 and a heater 5. The power supply 1 is used to provide a three-phase voltage for the water spraying branches 3. Each water spraying branch 3 is connected in parallel, and each water spraying branch 3 includes: an induction switch 31 and a nozzle 32. The main control module 2 is connected to the power supply 1, and the main control module 2 is used to selectively conduct each water spraying branch 3. The temperature control circuit 4 corresponds to the water spraying branch 3 one by one, and one side of each temperature control circuit 4 is connected to the power supply 1 through the induction switch 31, and the other side of each temperature control circuit 4 is connected to the heater 5. When the main control module 2 starts the water spraying branch 3, the temperature control circuit 4 is powered on and runs and monitors the temperature at the nozzle 32, and the heater 5 heats or stops heating the nozzle 32 according to the output signal of the temperature control circuit 4.

[0016] Figure 2 It is a structural schematic diagram of a temperature control circuit according to an embodiment of the utility model.

[0017] Reference Figure 2 Specifically, the temperature control circuit 4 includes: an integrator 41, a first thermistor R1 and a second thermistor R2. There are two power supply 1 terminals of the integrator 41, and each power supply 1 terminal is respectively connected to one of the phases of the power supply 1. The input terminal of the integrator 41 is respectively connected to the first thermistor R1 and the second thermistor R2, and the first thermistor R1 and the second thermistor R2 are connected in parallel with each other. The output terminal of the integrator 41 includes: two ports, a positive terminal and a negative terminal, and the positive terminal and the negative terminal are both connected to the heater 5. Among them, the output signal of the positive terminal is 180° different from the output signal of the negative terminal, and the integrator 41 has only one output port output at the same time.

[0018] Among them, the first thermistor R1 is used to control the maximum temperature value that the entire system can withstand (i.e., to prevent the heating temperature from being too high and damaging the related equipment), and the second thermistor R2 is used to control the minimum temperature value that the entire system can withstand (generally to prevent freezing). When the heater 5 receives the output signal from the positive end of the integrator 41, the heater 5 heats the corresponding nozzle 32 (at this time, the resistance value of the second thermistor R2 reaches the lowest range, and there may be ice in the nozzle). When the heater 5 receives the output signal from the negative end of the integrator 41, the heater 5 stops heating the corresponding nozzle 32 (at this time, the resistance value of the first thermistor R2 reaches the highest range, and the nozzle may be burned).

[0019] Furthermore, in order to prevent erroneous operation from causing erroneous operation. In the present embodiment, a main switch is provided between the power supply 1 and each water spray branch 3, and a relay 6 is provided between the inductive switch 31 and the nozzle 32 in each water spray branch 3. When the main switch is turned on, the operator adjusts the inductive switch 31 on any water spray branch 3 through the main control module 2 to select the nozzle 32 to be operated. When the inductive switch 31 on any water spray branch 3 is energized, the temperature control circuit 4 connected to the corresponding water spray branch 3 is energized and operated. After the water spray branch 3 is energized, the nozzle 32 is connected to the water storage tank and starts to rotate and spray water. In a low temperature environment, the retained water in the pipeline between the water storage tank and the nozzle 32 is often frozen. At this time, after the water spray branch 3 is started, the nozzle 32 cannot rotate and needs to wait for the heater 5 to heat.

[0020] In summary, the utility model controls the heater to heat or stop heating the nozzle through the output signal of the temperature control circuit, thereby melting the frozen retained water in the pipeline between the nozzle and the water storage tank.

[0021] The above description is of certain embodiments of the invention. Other embodiments are within the scope of the following claims.

[0022] The terms "exemplary," "example," and the like used throughout this specification mean "used as an example, instance, or illustration" and do not mean "preferred" or "advantageous" over other embodiments. The detailed description includes specific details for the purpose of providing an understanding of the described techniques. However, these techniques can be implemented without these specific details. In some instances, in order to avoid obscuring the concepts of the described embodiments, well-known structures and devices are shown in block diagram form.

[0023] The optional implementation modes of the embodiments of the utility model are described in detail above in conjunction with the accompanying drawings. However, the embodiments of the utility model are not limited to the specific details in the above implementation modes. Within the technical concept of the embodiments of the utility model, the technical scheme of the embodiments of the utility model can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the embodiments of the utility model.

[0024] The above description of the contents of this specification is provided to enable any person of ordinary skill in the art to implement or use the contents of this specification. Various modifications to the contents of this specification will be apparent to those of ordinary skill in the art, and the general principles defined herein may be applied to other variations without departing from the scope of protection of the contents of this specification. Therefore, the contents of this specification are not limited to the examples and designs described herein, but are consistent with the widest range of principles and novel features disclosed herein.

Claims

1. A watering and antifreezing device for open-pit mining, arranged on a watering truck, characterized in that: include: A power supply (1), a main control module (2), a water spray branch (3), a temperature control circuit (4) and a heater (5); the power supply (1) is used to provide a three-phase voltage for the water spray branch (3); each of the water spray branches (3) is connected in parallel, and each of the water spray branches (3) comprises: an induction switch (31) and a nozzle (32); the main control module (2) is connected to the power supply (1), and the main control module (2) is used to selectively conduct each of the water spray branches (3); the temperature control circuit (4) corresponds to the water spray branch (3) one by one, one side of each of the temperature control circuits (4) is connected to the power supply (1) through the induction switch (31), and the other side of each of the temperature control circuits (4) is connected to the heater (5); the heater (5) heats or stops heating the nozzle (32) according to the output signal of the temperature control circuit (4).

2. A water sprinkling and antifreezing device for open-pit mining according to claim 1, characterized in that: The temperature control circuit (4) comprises: an integrator (41), a first thermistor R1, and a second thermistor R2; the power supply (1) end of the integrator (41) is connected to the power supply (1), the input end of the integrator (41) is respectively connected to the first thermistor R1 and the second thermistor R2, and the output end of the integrator (41) is connected to the heater (5).

3. A water sprinkling and antifreezing device for open-pit mining according to claim 2, characterized in that: The output end of the integrator (41) comprises a positive end and a negative end, and the phase of the output signal of the positive end differs from the phase of the output signal of the negative end by 180°.

4. A water sprinkling and antifreezing device for open-pit mining according to claim 2, characterized in that: The water spray branch (3) further comprises a relay (6), wherein the relay (6) is arranged between the switch and the spray head (32).

5. A water sprinkling and antifreezing device for open-pit mining according to claim 3, characterized in that: When the heater (5) receives a signal output from the positive end, the heater (5) heats the nozzle (32) of the water storage tank; when the heater (5) receives a signal output from the negative end, the heater (5) stops heating the nozzle (32).

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