CN219597001U

CN219597001U - Spraying dust-settling device

Info

Publication number: CN219597001U
Application number: CN202320847461.7U
Authority: CN
Inventors: 杨坤; 杨琪; 梅瑞; 金磊; 吴磊
Original assignee: Huainan Mining Group Co Ltd
Current assignee: Huainan Mining Group Co Ltd
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2023-08-29
Anticipated expiration: 2033-04-11

Abstract

The utility model discloses a spraying dust-settling device, which comprises an AC/DC power supply module, a control transformer, an opposite-shooting type photoelectric sensor, an intermediate relay and an electromagnetic valve, wherein the control transformer is connected with the opposite-shooting type photoelectric sensor through the AC/DC power supply module, an electric signal generated by the opposite-shooting type photoelectric sensor is connected with the intermediate relay, a normally open point of the intermediate relay is connected with a coil of the electromagnetic valve, and a spray head is connected with a water supply pipeline through the electromagnetic valve; the transmitting end and the receiving end of the correlation photoelectric sensor are respectively arranged at two sides of a coal unloading line of the unloading roller. Can automatically open the spraying when the belt conveyor has coal, automatically close the spraying when the belt conveyor has no coal, and no manual operation is needed.

Description

Spraying dust-settling device

Technical Field

The utility model relates to the technical field of dust fall, in particular to a spray dust fall device.

Background

When coal is discharged from the belt coal flow system, a large amount of coal dust can be generated, and a common dust falling mode is to directly arrange a spraying pipeline, and manually open a spraying valve to spray water and reduce the dust when the coal is discharged. However, when coal is discharged, coal is not always arranged on the belt conveyor, and a valve cannot be closed timely by manpower, so that a large amount of spray water enters a coal flow system to influence coal quality.

For example, in the related art, the chinese patent document with application publication number CN201843634U discloses an underground mine unloading line spray dust fall system, which comprises an ore bin, an unloading line and an ore tank, wherein the ore bin and the ore tank are respectively arranged at two ends of the unloading line, two sides of an ore bin opening are respectively provided with a plurality of nozzles, and the nozzles at two sides are parallel and opposite; a bracket is arranged on the ore discharging line platform, a plurality of detachable water pipe door frames are uniformly arranged at intervals on the upper part of the bracket, and each water pipe door frame is provided with a plurality of spray heads and is connected with a controllable water pipe through a pipeline; a plurality of large-flow flat water column nozzles are arranged on the platforms at two sides of the ore discharging line; the two sides of the notch are provided with flushing spray heads, the spray heads on one side are downwards sprayed, and the spray heads on the other side are horizontally sprayed. However, in this scheme, signals need to be transmitted through a PLC or other accessories, and each belt conveyor is not flexible enough when in use.

Disclosure of Invention

The utility model aims to solve the technical problem of how to realize effective spraying dust fall on a coal flow system.

The utility model solves the technical problems by the following technical means:

there is provided a spray dust device, the device comprising: the device comprises an AC/DC power supply module, a control transformer, an opposite-type photoelectric sensor, an intermediate relay and an electromagnetic valve, wherein the control transformer is connected with the opposite-type photoelectric sensor through the AC/DC power supply module, an electric signal generated by the opposite-type photoelectric sensor is connected with the intermediate relay, a normally open point of the intermediate relay is connected with a coil of the electromagnetic valve, and a spray head is connected with a water supply pipeline through the electromagnetic valve;

the transmitting end and the receiving end of the correlation photoelectric sensor are respectively arranged at two sides of a coal unloading line of the unloading roller.

Further, installing columns are respectively arranged on two sides of the unloading roller coal unloading line, a first L-shaped installing plate is installed at the top end of each installing column, and a second L-shaped installing plate is fixedly connected with the first L-shaped installing plate to form an installing cavity for accommodating the transmitting end or the receiving end.

Further, the first L-shaped mounting plate and the second L-shaped mounting plate are both made of stainless steel.

Further, a waist-shaped hole is formed in the second L-shaped mounting plate.

Further, the mounting post is located in front of the unloading drum.

Further, a circuit breaker is arranged between the control transformer and the AC/DC power supply module.

Further, the type of the correlation type photoelectric sensor is E3JK-TR14.

Further, the electromagnetic valve adopts a DFB explosion-proof electromagnetic valve.

The utility model has the advantages that:

(1) According to the utility model, the emitting end and the receiving end of the correlation photoelectric sensor are respectively arranged at two sides of a coal unloading line of the unloading roller, when coal passes through the measuring range of the photoelectric sensor, the measured coal changes, the photoelectric sensor acts at the moment to convert an optical signal into an electric signal, the electric signal is utilized to control the action of the intermediate relay, and then the intermediate relay controls the electromagnetic valve to spray water; when no coal passes, the measured coal does not change, the sensor does not output an electric signal, the intermediate relay also stops working, the electromagnetic valve is also closed, and the spraying is automatically closed. Therefore, the device can automatically open the spray when the belt conveyor has coal, automatically close the spray when the belt conveyor does not have coal, and greatly change the pain point that a large amount of spray water enters a coal flow system because workers do not close the spray in time.

(2) The device adopts the photoelectric sensor to directly control the relay when coal passes through, and does not need to transmit signals through a PLC or other devices, so that the flexibility of the device in use of each belt conveyor is ensured; and the electromagnetic valve can be used by only replacing the transformer and the electromagnetic valve with the same voltage class voltage according to different voltages required by the use places.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a schematic circuit diagram of a spray dust device according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram showing the positional relationship among a photosensor, a spray head and an unloading drum according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a mounting structure of a transmitting end and a receiving end of a correlation-type photoelectric sensor according to an embodiment of the present utility model;

FIG. 4 is a side view of a sensor mounting structure in an embodiment of the utility model.

In the figure:

1-mounting posts, 2-first L-shaped mounting plates, 3-second L-shaped mounting plates, 21-first cantilevers, 22-second cantilevers, 31-third cantilevers, 32-fourth cantilevers, 33-kidney-shaped holes, 4-spray heads, 5-unloading rollers, 6-belt conveyor fixing frames, 7-correlation photoelectric sensors, 8-spray frames, 9-conveying belts, 10-penetrating fixing bolts and 11-fixing screws.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions in the embodiments of the present utility model will be clearly and completely described in the following in conjunction with the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1, an embodiment of the present utility model provides a spray dust settling device, which includes: the device comprises an AC/DC power supply module, a control transformer, an opposite-type photoelectric sensor, an intermediate relay and an electromagnetic valve, wherein the control transformer is connected with the opposite-type photoelectric sensor through the AC/DC power supply module, an electric signal generated by the opposite-type photoelectric sensor is connected with the intermediate relay, a normally open point of the intermediate relay is connected with a coil of the electromagnetic valve, and a spray head is connected with a water supply pipeline through the electromagnetic valve; the transmitting end and the receiving end of the correlation photoelectric sensor are respectively arranged at two sides of a coal unloading line of the unloading roller.

The emission end and the receiving end of the correlation photoelectric sensor are respectively arranged at two sides of the coal unloading line of the unloading roller, so that the light source between the emission end and the receiving end can be cut off when coal passes through, and the sensor is driven to operate. The photoelectric sensor enables the intermediate relay KA to act, and then the normally open point of the intermediate relay is utilized to control the solenoid valve coil, and when the solenoid valve acts, the spray head can spray water. When no coal exists, the light source between the transmitting end and the receiving end is not blocked, the sensor does not act, and all elements of the control circuit are closed, so that the electromagnetic valve is closed, and the spraying is closed. Therefore, the spraying dust device can automatically open spraying when the belt conveyor has coal, and automatically close spraying when the belt conveyor does not have coal, so that manual operation is not needed, and a large amount of spraying water enters a coal flow system due to the fact that spraying is not closed timely by workers.

In an embodiment, as shown in fig. 3 to 4, mounting columns 1 are respectively disposed on two sides of the unloading drum coal unloading line, a first L-shaped mounting plate 2 is mounted on top of the mounting columns 1, and a second L-shaped mounting plate 3 is fixedly connected with the first L-shaped mounting plate 1 to form a mounting cavity for accommodating the transmitting end or the receiving end.

Specifically, a groove is formed in the top side wall of the mounting column 1, one end cantilever I21 of the first L-shaped mounting plate 2 is tightly attached to the groove, the other end cantilever II 22 is far away from the groove, one end cantilever III 31 of the second L-shaped mounting plate 3 is tightly attached to the other end cantilever II 22 of the first L-shaped mounting plate 2 and fixedly connected with the other end cantilever II through a fixing screw 11, and the other cantilever IV 32 of the second L-shaped mounting plate 3 is vertically downwards arranged and forms a mounting cavity for accommodating the transmitting end or the receiving end with the side wall of the mounting column 1.

Further, the other cantilever 32 of the second L-shaped mounting plate 3 is fixedly connected with the side wall of the mounting column 1 through a fixing bolt 10.

In one embodiment, the mounting post 1, the first L-shaped mounting plate 2 and the second L-shaped mounting plate 3 are all made of stainless steel.

In one embodiment, the second L-shaped mounting plate 3 is provided with a kidney-shaped hole 33.

It should be noted that, in this embodiment, the installation of the photoelectric sensor is realized by using the L-shaped fixing frame, and in the installation aspect, the installation is convenient for dismantle, and the material replacement such as accessories is convenient for.

In an embodiment, as shown in fig. 2, the spray head 4 is mounted on the spray frame 8 of the machine head unloading drum 5 and is located in front of the unloading drum 5, the mounting position of the spray head 4 is reasonable, the height of the spray head is 800MM-1000MM away from the machine head coal dropping parabola, the spray head is higher than the coal flow parabola 1000MM, the actual dust dropping effect can not be achieved due to too scattered water mist, and the spray head is lower than the non-reserved parabola 800MM, so that the spray at the nozzle of the spray head can not be completely atomized into a semi-water flow semi-atomized state to be mixed in the coal flow, and the possibility of being impacted by the coal flow is possible.

It should be noted that the transmitting end and the receiving end of the photoelectric sensor should be installed at two sides of the unloading roller coal unloading line of the machine head belt conveyor, so as to conform to the coal flow falling curve, and when the coal passes, the light source between the transmitting end and the receiving end of the sensor can be cut off, so that the sensor is driven to act, and the floating dust on the surface of the sensor needs to be cleaned regularly, otherwise, misoperation can be caused.

In an embodiment, a circuit breaker is provided between the control transformer and the AC/DC power module.

The AC/DC power supply module is used for converting AC220V provided by the control transformer into DC24V so as to supply power for the photoelectric switch main loop, and is used for supplying power to the photoelectric switch main loop

In one embodiment, a direct current breaker is arranged between the control transformer and the AC/DC power module to ensure safe operation of the circuit.

In one embodiment, the correlation type photoelectric sensor is E3JK-TR14.

In one embodiment, the solenoid valve is a DFB flameproof solenoid valve.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. A spray dust suppression device, the device comprising: the device comprises an AC/DC power supply module, a control transformer, an opposite-type photoelectric sensor, an intermediate relay and an electromagnetic valve, wherein the control transformer is connected with the opposite-type photoelectric sensor through the AC/DC power supply module, an electric signal generated by the opposite-type photoelectric sensor is connected with the intermediate relay, a normally open point of the intermediate relay is connected with a coil of the electromagnetic valve, and a spray head is connected with a water supply pipeline through the electromagnetic valve;

2. The spray dust device of claim 1, wherein mounting posts are respectively arranged on two sides of the unloading roller coal unloading line, a first L-shaped mounting plate is mounted on the top end of each mounting post, and a second L-shaped mounting plate is fixedly connected with the first L-shaped mounting plate to form a mounting cavity for accommodating the transmitting end or the receiving end.

3. The spray dust device of claim 2, wherein the first L-shaped mounting plate and the second L-shaped mounting plate are each made of stainless steel.

4. The spray dust device of claim 2, wherein the second L-shaped mounting plate is provided with a kidney-shaped aperture.

5. The spray dust device of claim 2, wherein the mounting post is located in front of the unloading drum.

6. The spray dust suppression device of claim 1, wherein a circuit breaker is disposed between the control transformer and the AC/DC power module.

7. The spray dust device of claim 1, wherein the correlation photosensor is model E3JK-TR14.

8. The spray dust suppression device of claim 1, wherein the solenoid valve is a DFB flameproof solenoid valve.