Mining blowing nozzle and ore sorting machine

Abstract

The utility model relates to a mining blowing nozzle and an ore sorting machine. The mining blowing nozzle comprises a blowing nozzle assembly and an air supply assembly, the blowing nozzle assembly comprises a plurality of blowing nozzle supports, electromagnetic valves and blowing nozzles, wherein the electromagnetic valves and the blowing nozzles are located on the blowing nozzle supports. The gas supply assembly comprises a gas supply main pipe and gas supply branch pipes; the air supply main pipe is used for providing compressed air; the air supply branch pipe is used for communicating the air supply main pipe with the blowing nozzle assembly. The key points are as follows: an air supply main pipe is communicated with an air source and is communicated with each blowing nozzle assembly through an air branch pipe, so that the air source is dispersed and supplied to each blowing nozzle assembly; the blowing nozzle assembly also comprises an independent blowing nozzle support, and the blowing nozzle support is provided with an electromagnetic valve and a blowing nozzle. According to the structure, the blowing structure is of a non-integrated structure, due to the branch design of the independent structure, the position, force and the like of each blowing nozzle can be independently designed, and the ore screening effect can be improved to a certain degree.

Description

Technical Field

[0001] The utility model relates to the technical field of ore dressing machines, in particular to a mine blowing nozzle and an ore separator. Background Art

[0002] In the field of ore separation, generally, ore is first classified into concentrate, tailings, etc. through visual detection technology, and then a blowing nozzle is controlled to blow different types of ore so that the corresponding ore falls into the corresponding ore bin to complete ore separation. The traditional blowing structure is mostly an integral structure with a large volume, and the position of the air outlet is difficult to adjust, resulting in poor screening effect on ore.

[0003] Therefore, how to improve the blowing structure is a technical problem to be solved urgently in this field. Summary of the Utility Model

[0004] To solve the above-mentioned at least one technical problem, a mine blowing nozzle of the utility model includes: a blowing nozzle assembly and a gas supply assembly;

[0005] The blowing nozzle assembly includes: several blowing nozzle brackets, an electromagnetic valve and a blowing nozzle located on the blowing nozzle brackets;

[0006] The gas supply assembly includes: a main gas supply pipe and a branch gas supply pipe;

[0007] The main gas supply pipe is used to provide compressed air; the branch gas supply pipe is used to connect the main gas supply pipe and the blowing nozzle assembly.

[0008] Further, the blowing nozzle bracket includes a telescopic member and a mounting plate; a waist-shaped hole is provided on the mounting plate; the telescopic member is arranged through the waist-shaped hole.

[0009] Further, the blowing nozzle bracket further includes a vacuum sealing cavity arranged at the top end of the telescopic member; the electromagnetic valves are uniformly arranged in the cavity; the blowing nozzle is arranged on the vacuum sealing cavity.

[0010] Further, a maintenance door is provided on one side of the vacuum sealing cavity.

[0011] Further, the blowing nozzle includes a quick connector arranged on the blowing nozzle bracket, a blowing nozzle bar arranged on the quick connector, and blowing nozzle holes arranged on the blowing nozzle bar.

[0012] Further, the blowing nozzle holes are uniformly arranged on the blowing nozzle bar, and the blowing air direction is upward.

[0013] Further, the main gas supply pipe is arranged horizontally along the ore output position; the branch gas supply pipe is arranged longitudinally along the side surface of the main gas supply pipe and is located between the main gas supply pipe and the blowing nozzle assembly for transmitting the compressed air of the main gas supply pipe to the blowing nozzle assembly.

[0014] On the other hand, the present utility model further provides an ore separator, which includes any of the above-mentioned mining nozzles; a conveying device and a detection device;

[0015] The conveying device is used for conveying the ore to be separated;

[0016] The detection device is arranged on the conveying device and is used for detecting the ore to be separated;

[0017] The mining nozzle is arranged at the end of the conveying device and is used for blowing the ore to be separated according to the detection result.

[0018] Furthermore, it further includes: a demarcation device 30, which includes a demarcation main body and a lining plate; the demarcation main body is located at the end of the conveying device; the lining plate is located above the demarcation main body.

[0019] Furthermore, the lining plate is an inwardly concave arc surface; convex edges and concave edges are provided on both sides of each lining plate; the convex edges and concave edges of adjacent two lining plates are spliced.

[0020] For the mining nozzle and the ore separator provided by the present utility model, the air supply main pipe is connected to the air source, and is communicated with each nozzle assembly through the air branch pipe, so as to disperse the air source to each nozzle assembly; the nozzle assembly also includes an independent nozzle support, on which respective electromagnetic valves and nozzles are arranged. This structure makes the blowing structure a non-integral structure, and the branch design of the independent structure enables the positions, forces, etc. of each nozzle to be designed separately, which can improve the screening effect of the ore to a certain extent. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of the mining nozzle of the present utility model;

[0022] Figure 2 It is a schematic structural diagram of the nozzle support of the mining nozzle of the present utility model;

[0023] Figure 3 It is a schematic structural diagram of the nozzle assembly of the mining nozzle of the present utility model;

[0024] Figure 4 It is a schematic structural diagram of the ore separator of the present utility model;

[0025] Figure 5 It is a schematic structural diagram of the lining plate of the ore separator of the present utility model. Detailed Embodiments

[0026] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0027] It should be noted that if there are directional indications in the embodiments of the present invention, such as up, down, left, right, front, back,..., then the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly. In addition, if there are descriptions such as "first, second", "S1, S2", "step one, step two", etc. in the embodiments of the present invention, such descriptions are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features or indicating the execution order of the method, etc. Those skilled in the art can understand that all those that do not violate the key points of the present invention under the technical concept of the present invention should be included in the protection scope of the present invention.

[0028] Next, the present invention will be described in detail with reference to the accompanying drawings and in conjunction with the embodiments.

[0029] As Figures 1-3 shown, the present invention provides a mine blowing nozzle, including: a blowing nozzle assembly 10 and a gas supply assembly 20;

[0030] The blowing nozzle assembly includes: several blowing nozzle brackets 11, and an electromagnetic valve 12 and a blowing nozzle 13 located on the blowing nozzle brackets;

[0031] The gas supply assembly includes: a main gas supply pipe 21 and a branch gas supply pipe 22; the main gas supply pipe is used to provide compressed air; the branch gas supply pipe is used to connect the main gas supply pipe and the blowing nozzle assembly.

[0032] In this embodiment, a mine blowing nozzle of the present invention is given. It connects to an air source through the main gas supply pipe and is connected to each blowing nozzle assembly through the branch gas supply pipe to disperse the air source to each blowing nozzle assembly; the blowing nozzle assembly also includes independent blowing nozzle brackets, on which respective electromagnetic valves and blowing nozzles are provided. This structure makes the blowing structure a non-integral structure, and the branch design of the independent structure enables the positions, forces, etc. of each blowing nozzle to be designed separately, which can improve the screening effect of ore to a certain extent.

[0033] (1) In the blowing nozzle assembly:

[0034] Preferably, as Figure 2As shown, the nozzle support 11 includes a telescopic member 111 and a mounting plate 112; a waist-shaped hole is provided on the mounting plate; the telescopic member is disposed through the waist-shaped hole.

[0035] In this embodiment, a preferred embodiment of the nozzle support of the present utility model is given. On the one hand, by adjusting the telescopic length of the telescopic member, the overall height of the nozzle assembly is adjusted; on the other hand, by adjusting the specific position of the telescopic member in the waist-shaped hole, the spraying position of the nozzle assembly is adjusted; thereby comprehensively adjusting the position where the nozzle assembly acts on the ore, accurately controlling its spraying direction and strength, and achieving precise impact on the ore so that it falls into the corresponding ore bin. More preferably, the telescopic member can be, but is not limited to, an adjusting screw. One end of the mounting plate is connected to the adjusting screw, and the other end is connected to the base of the ore separator. A waist-shaped hole is provided on the mounting plate to facilitate adjusting the mounting position of the nozzle. The mounting height of the nozzle can be adjusted by the adjusting screw. For example, when installing the nozzle assembly, first, determine the optimal horizontal distance and the optimal vertical distance between the end of the conveyor belt of the ore separator and the nozzle assembly through mathematical calculations and environmental measurements, then fix the nozzle assembly using the mounting plate to fix the horizontal distance between the two, and then use the adjusting screw to adjust the vertical height of the nozzle to fix the vertical distance between the two. After adjusting according to this step, the nozzle assembly can be installed at the optimal position.

[0036] More preferably, as Figure 3 shown, the nozzle support 11 further includes a vacuum sealing cavity 113 disposed at the top of the telescopic member; electromagnetic valves are evenly arranged in the cavity; the nozzle is disposed on the vacuum sealing cavity. More preferably, a maintenance door 114 is provided on one side of the vacuum sealing cavity. Specifically, for the shape of the vacuum sealing cavity, refer to Figure 3 , to make the air spray concentrated, its upper end is in a pointed shape.

[0037] In this embodiment, another preferred embodiment of the nozzle support of the present utility model is given. A vacuum sealing cavity is provided thereon to arrange the electromagnetic valves and connecting wires, pipes, etc. in the cavity, which is simple in structure and has a certain protective effect; the maintenance door provided on one side of the cavity facilitates the maintenance of the electromagnetic valves and pipelines and wire circuits in the cavity. For example, when components such as electromagnetic valves or air delivery pipes in the nozzle support are damaged, the maintenance door can be opened to quickly repair and replace them.

[0038] More preferably, the nozzle 13 includes a quick connector 131 disposed on the nozzle support, a nozzle strip 132 disposed on the quick connector, and nozzle holes 133 evenly distributed on the nozzle strip. Preferably, the number of the nozzle holes is 210, and the blowing direction of the nozzle holes is upward. More preferably, in the nozzle assembly, the electromagnetic valve is located inside the nozzle support and is used to control the flow of compressed air with the air supply branch pipe; the nozzle is located at the top of the nozzle support and is used to direct the release of compressed air.

[0039] More preferably, the nozzle bar is located below the ore and is integrally composed of segmented splicing, effectively reducing the processing difficulty of the nozzle bar and improving the position accuracy of the nozzle holes. More preferably, the overall structural cross-section of the nozzle bar is cruciform, providing support connections on both sides to enhance the stability of installation connection and structural strength.

[0040] In this embodiment, a preferred embodiment of the nozzle of the present invention is given. The nozzle bar is quickly installed through a quick connector, and nozzle holes are evenly distributed thereon to uniformly output the blowing air.

[0041] (2) Air supply assembly:

[0042] Preferably, the main air supply pipe 21 is horizontally arranged along the ore output position; the sub-air supply pipes are vertically arranged along the side surface of the main air supply pipe. More preferably, the sub-air supply pipe 22 is located between the main air supply pipe 21 and the nozzle assembly 20 and is used to transfer the compressed air from the main air supply pipe 21 to the nozzle assembly 20.

[0043] More preferably, the air supply assembly may also optionally but not limited to include: an air supply shield 202 located outside the main air pipe.

[0044] The usage method of the present invention: When the sorting operation starts, the air supply assembly starts to work. At this time, the main air supply pipe starts to compress air, and then transfers the compressed air to the nozzle assembly through the sub-air supply pipe. Finally, the solenoid valve in the nozzle assembly controls the release time and dosage of the compressed air. More specifically, before the operation, select an appropriate number of nozzle brackets according to the width of the conveyor belt of the ore sorter, and then assemble the nozzle brackets into one body to achieve full-width coverage of the conveyor belt. This method can effectively reduce the production and manufacturing difficulty and improve the structural stability; during the operation, when the ore is horizontally thrown out from the end of the conveyor belt and moves above the nozzle assembly, the solenoid valve in the nozzle assembly will be opened according to the previously determined time at this time, so that the compressed air is ejected from the nozzle. After the ore is blown by the gas, its movement trajectory will change, thereby realizing the sorting of the ore.

[0045] In summary: In existing ore separators, centralized air supply using air tanks is mostly adopted. When the operation time is long, it is difficult to stably and sufficiently supply compressed air. Therefore, the mining nozzle of the present utility model is provided. Through the air supply assembly composed of the main air supply pipe and the branch air supply pipes, a centralized air supply method with a large-diameter circular pipe is used as an example to supply compressed gas. This method has low manufacturing cost, saves installation space, reduces the number of air inlet interfaces, and can stably and sufficiently supply compressed air. At the same time, since most existing injection structures are integral structures with large volumes, it is difficult to install the nozzle at the best blowing position during installation, resulting in poor separation effect. Therefore, a nozzle assembly, an independent mounting bracket, an electromagnetic valve, and a nozzle are provided to release compressed air at each part. This method can adjust the installation position of the nozzle assembly according to the actual use environment to improve the separation effect of the separation device. It should be noted that the key of this embodiment is: by splitting the separation device into an air supply assembly and a nozzle assembly, and reasonably setting the installation positions of the air supply assembly and the nozzle assembly, stable and sufficient supply of compressed air is achieved, and at the same time, the separation effect of the nozzle structure is improved. However, the specific control of the electromagnetic valve and how to release compressed air can adopt any method of the existing technology, which is not the focus of the present utility model and will not be elaborated herein.

[0046] On the other hand, the present utility model also provides an ore separator, including any of the above mining nozzles, a conveying device, and a detection device;

[0047] The conveying device is used to convey the ore to be separated;

[0048] The detection device is arranged on the conveying device and is used to detect the ore to be separated;

[0049] The mining nozzle is arranged at the end of the conveying device and is used to blow the ore to be separated according to the detection result.

[0050] In this embodiment, an ore separator of the present utility model is given, and the above mining nozzle is applied to the ore separator. For example, the conveying device includes a conveyor belt and its driving assembly. The detection device includes a visual detection module and an identification module. Through visual detection technology, it can identify whether the ore is concentrate, tailings, etc., so as to control the mining nozzle to achieve precise blowing. Specifically, the conveying device and the detection device can adopt any structural form in the existing technology and will not be elaborated herein.

[0051] Preferably, as Figures 4 to 5 shown, the ore separator of the present utility model further includes a demarcation device 30, including a demarcation main body 31 and a lining plate 32; the demarcation main body is located at the end of the conveying device; the lining plate is located above the demarcation main body.

[0052] In this embodiment, another preferred embodiment of the ore separator is given, with a demarcation device added: a demarcation main body that can divide the two sides of the demarcation main body into two isolated areas; a lining plate above it that can guide the materials. For example, the falling area of the tailings under the action of the sorting device is farther from the conveying device, while the falling area of the concentrate without the action of the sorting device is closer to the conveying device. The demarcation device is located between these two areas and is used to isolate the tailings and the concentrate to prevent the phenomenon of re-mixing after sorting. At the same time, due to the inconsistent quality and volume of the ore, the movement distance of the ore after the sorting device acts on it will also be inconsistent, resulting in many ores falling onto the demarcation device. As the sorting dose increases, the demarcation device is prone to damage. For example, when the ore cannot directly cross the demarcation device under the action of the sorting device, it will contact the lining plate in the demarcation device, and the ore will slide along the lining plate to the corresponding area under the action of the lining plate. Since the lining plate needs to be in contact with the ore for a long time, with the increase of the use time, the lining plate is prone to damage, resulting in a decrease in the guiding effect of the lining plate on non-target ores. Therefore, preferably, the material of the demarcation main body can be selected as NM500, and the material of the lining plate can be selected as high-chromium cast iron.

[0053] More preferably, since the lateral width dimension of the conveying device is relatively large, it is difficult to manufacture and install a lining plate with a relatively large size, and the replacement cost after damage is relatively high. Preferably, a splicing structure is provided on the periphery of the lining plate to splice the lining plates into one body. Before use, select an appropriate number of lining plates according to the lateral width of the conveying device, and then splice the lining plates to achieve full coverage of the area where the upper end of the demarcation main body may contact the ore. When a certain lining plate is excessively worn or damaged, this lining plate can be removed and replaced with a new one, thereby improving the installation efficiency of the lining plate and reducing the subsequent maintenance and replacement costs of the lining plate.

[0054] It should be noted that in this embodiment, only the position and function of the splicing structure on the periphery of the lining plate are set, but its specific structure, size, etc. are not set. That is to say, this splicing structure can be arbitrarily set by those skilled in the art according to the actual situation.

[0055] In a specific embodiment, as Figure 5 shown, the lining plate is an inwardly concave arc surface; more preferably, convex edges and concave edges are provided on both sides of each lining plate; the convex edges and concave edges of adjacent two lining plates are spliced.

[0056] Since the liner needs to guide the ore, the liner with a planar design is likely to cause the ore falling above it to splash, resulting in a decline in the guiding effect or even causing the ore to splash into other areas. After the ore comes into contact with the liner, under the action of the concave arc surface, the impact force of the ore will be alleviated, reducing the probability of ore splashing. At the same time, the concave arc surface will provide more stable guidance for non-target ore. More preferably, convex edges and concave edges are provided on both side edges of each liner, and the convex edges and concave edges of adjacent two liners are spliced to achieve a fitting connection. The middle of the liner is fixed to the demarcation body by bolts. In this way, it is possible to prevent the position of each liner from shifting when being struck by the ore, thereby increasing the service life of the liner.

[0057] The above ore separator is created based on the above mining nozzle, and the combination of its technical features and technical effects will not be elaborated here. The above embodiments only represent several implementation manners of the present utility model, and the description thereof is relatively specific and detailed, but it should not be construed as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the present utility model patent shall be subject to the appended claims.

Claims

1. A mining nozzle, characterized in that: include: Mouthpiece assembly and air supply assembly; A mouthpiece assembly, comprising: a plurality of mouthpiece brackets and a solenoid valve and a mouthpiece located on the mouthpiece brackets; Gas supply components, including: gas supply main pipe and gas supply branch pipe; The air supply main pipe is used to provide compressed air; the air supply branch pipe is used to connect the air supply main pipe and the mouthpiece assembly.

2. The mining nozzle according to claim 1, characterized in that: The mouthpiece bracket comprises a telescopic part and a mounting plate; the mounting plate is provided with a waist-shaped hole; the telescopic part is penetrated and arranged in the waist-shaped hole.

3. The mining nozzle according to claim 2, characterized in that: The mouthpiece bracket also includes a vacuum sealing cavity, which is arranged at the top of the telescopic part; the solenoid valves are evenly arranged in the cavity; and the mouthpiece is arranged on the vacuum sealing cavity.

4. The mining nozzle according to claim 3, characterized in that: An inspection door is provided on one side of the vacuum sealing chamber.

5. The mining nozzle according to claim 1, characterized in that: The mouthpiece comprises a quick connector arranged on a mouthpiece bracket, a mouthpiece strip arranged on the quick connector and a mouthpiece hole arranged on the mouthpiece strip.

6. The mining nozzle according to claim 5, characterized in that: The mouthpiece holes are evenly distributed on the mouthpiece bar, and the blowing direction is upward.

7. The mining nozzle according to any one of claims 1 to 6, characterized in that: The air supply main pipe is arranged horizontally along the ore output position; the air supply branch pipe is arranged longitudinally along the side of the air supply main pipe and is located between the air supply main pipe and the nozzle assembly, and is used to transfer the compressed air of the air supply main pipe to the nozzle assembly.

8. An ore sorting machine, characterized in that: A mining nozzle comprising any one of claims 1 to 7; and a transport device and a detection device; A transport device for transporting ore to be sorted; A detection device, arranged on the transport device, for detecting the ore to be sorted; The mining nozzle is arranged at the end of the transport device and is used to spray the ore to be sorted according to the detection results.

9. The ore separator according to claim 8, characterized in that: Also includes: The dividing device comprises a dividing body and a lining plate; the dividing body is located at the end of the transport device; Lining plate, located above the dividing body.

10. The ore separator according to claim 9, characterized in that: The lining plate is an inwardly concave arc surface; a convex edge and a concave edge are arranged on both side edges of each lining plate; and the convex edges and concave edges of two adjacent lining plates are spliced.

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