A dust removal device for a cutting drum of a mining equipment

Abstract

The utility model relates to the field of mine machinery, especially point to a kind of dust removal device for mining equipment cutting drum, including drum, drum is connected with swivel joint, and drum surface is laid with several cutting tooth;Atomizing nozzle, atomizing nozzle is integrated in each cutting tooth inside, and water supply is carried out by water supply pipeline;Dust sensor, dust sensor is arranged on swivel joint, for real-time monitoring dust concentration;When dust concentration exceeds preset threshold, control water pump supplies water to atomizing nozzle by water supply pipeline, and dust is realized by spraying water mist. After the above scheme is used, dust concentration can be monitored in real time when drum cutting, and water flow size is automatically adjusted according to preset threshold.

Description

Technical Field

[0001] This utility model relates to the field of mining machinery, and specifically refers to a dust removal device for the cutting drum of mining equipment. Background Technology

[0002] In mining and tunneling operations, the cutting drum, as a core component, generates a large amount of dust during operation, seriously endangering the health of workers and affecting equipment operating efficiency. Traditional dust collection devices mostly use external water spraying or negative pressure dust collection methods, which suffer from problems such as unstable water supply, low dust collection efficiency, and easy nozzle wear, making it difficult to meet the operational needs of high-dust environments. In addition, existing devices cannot achieve synchronous rotation of the water supply pipeline and the drum, resulting in water supply interruption or uneven water spraying during cutting, further reducing the dust collection effect.

[0003] If the post-dust removal method of CN116398217A is adopted, it has two significant drawbacks: First, the dust removal device obstructs the view and affects the observation of the working conditions in front of the cutting head; second, it cannot suppress the spread of dust in a timely manner.

[0004] Meanwhile, other existing technologies also have obvious shortcomings: they lack a real-time monitoring and feedback mechanism for dust concentration, making it difficult to achieve intelligent adjustment, resulting in unsatisfactory dust removal effects.

[0005] Therefore, the inventors conducted further research and developed a dust removal device for the cutting drum of mining equipment, which led to this invention. Utility Model Content

[0006] The purpose of this invention is to provide a dust removal device for the cutting drum of mining equipment, which can monitor the dust concentration during drum cutting in real time and automatically adjust the water flow according to a preset threshold.

[0007] To achieve the above objectives, the technical solution of this utility model is as follows:

[0008] A dust removal device for a cutting drum in mining equipment, comprising:

[0009] The roller is connected to the rotary joint, and the surface of the roller is covered with several cutting teeth;

[0010] Atomizing nozzles are integrated inside each cutting tooth and are supplied with water through a water supply pipeline;

[0011] A dust sensor is installed on the rotary joint to monitor dust concentration in real time.

[0012] When the dust concentration exceeds the preset threshold, the water pump is controlled to supply water to the atomizing nozzle through the water supply pipeline, and the dust is reduced by spraying water mist. When the cutting teeth are subjected to greater force, the water flow can be increased by adjusting the pressure of the nozzle to assist in hydraulic rock breaking and reduce tool wear.

[0013] Furthermore, the water supply pipeline is connected to the water tank, and a filter is installed on the water supply pipeline. When the water tank is supplied with water by the water pump, the water is filtered through the filter before being used for the atomizing nozzle.

[0014] The filter is used to prevent the atomizing nozzle from becoming clogged and malfunctioning.

[0015] Furthermore, the angular contact ball bearing inside the rotary joint is fitted with a sealing ring and a bearing retaining ring.

[0016] Furthermore, after the dust sensor collects the dust concentration, it transmits the signal to the controller. The controller then controls the water pump, which draws water from the tank into the filter. The filtered water then flows through the water supply pipeline and is sprayed into the air through the valve atomizing nozzle.

[0017] Furthermore, the controller is also connected to a display unit and an alarm module; the display unit is used to display the current dust concentration value in real time; the alarm module is used to issue a warning message when the dust concentration exceeds the standard.

[0018] Furthermore, the valve is an electromagnetic valve.

[0019] By adopting the above solution, this utility model has the following advantages compared with the prior art:

[0020] 1. High-efficiency dust removal: The built-in rotary dust removal structure operates synchronously with the cutting operation, achieving dust source control and improving dust removal efficiency;

[0021] 2. Intelligent control: It integrates a real-time dust concentration monitoring and feedback system, which can automatically adjust dust removal parameters according to the working environment to achieve precise dust reduction;

[0022] 3. Improved visibility: The built-in design avoids obstructing the working line of sight by external dust removal devices, improving the safety of downhole operations;

[0023] 4. Stable operation: High-precision bearings and reinforced connection structure are adopted to ensure reliable operation under complex working conditions;

[0024] 5. High adaptability: It can adapt to various high-dust working environments such as coal mines, metal mines, and tunnel excavation. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the water supply system of this utility model;

[0026] Figure 2This is a schematic diagram showing the connection between the roller and the rotary joint of this utility model;

[0027] Figure 3 This is a cross-sectional diagram of the roller;

[0028] Figure 4 This is a cross-sectional schematic diagram of the rotary joint;

[0029] Figure 5 This is the control flowchart of this utility model;

[0030] Label Explanation

[0031] 1-Cutting tooth, 2-Atomizing nozzle, 3-Dust sensor, 4-Water pipe, 5-Filter, 6-Water pipe

[0032] 7-Water pump, 8-Water tank, 9-Solenoid valve, 10-Rotary joint, 11-Angular contact ball bearing

[0033] 12 - Sealing ring, 13 - Angular contact ball bearing, 14 - Bearing retaining ring. Detailed Implementation

[0034] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0035] like Figure 1 , 2 As shown in Figure 3, a dust removal device for cutting drums in mining equipment is suitable for mining faces. It includes drums symmetrically arranged on both sides, with several cutting teeth 1 on the surface of each drum. The drums are mounted on their respective rotary joints, and a dust sensor 3 is installed at each rotary joint. Water is pumped from a water tank 8 by a water pump 7 and then transported through a water pipe to the rotary joint 10, supplying water to the atomizing nozzle 2 integrated with the cutting teeth 1. The atomizing nozzle uses a high-strength, wear-resistant atomizing nozzle to improve wear resistance and corrosion resistance.

[0036] A filter 5 is installed between the water pipes (4, 6) to filter the water used for dust removal and prevent impurities from clogging it. A solenoid valve 9 is installed at the end where the water pipe connects to the rotary joint, and the water flow can be controlled by the solenoid valve 9. Both the solenoid valve and the water pump are controlled by a controller, which can receive monitoring data from the dust sensor 3.

[0037] like Figure 4 As shown, the rotary joint includes at least two sets of angular contact ball bearings (11, 13). Considering that water needs to be supplied inside the rotary joint, a sealing ring 12 is provided at the bearing on one side leading to the roller. The sealing ring 12 is used to prevent water and external contaminants from entering the bearing cavity. A bearing retainer ring 14 is provided at the bearing on the other side. The bearing retainer ring is installed in the annular groove of the rotating shaft to fix the bearing axially in a preset position.

[0038] The workflow is as follows (see also the following references) Figure 5 ):

[0039] Dust monitoring phase: Dust concentration data during the cutting operation is collected in real time by two dust sensors 3 and transmitted to the controller.

[0040] Threshold determination stage: The controller compares and analyzes the real-time dust concentration data with the preset threshold.

[0041] Dust removal start-up phase: When the dust concentration exceeds the preset threshold, the controller starts the water pump motor to draw water from the water tank into the water pipe. After passing through filter 5, the water is atomized by the atomizing nozzle to form water mist to reduce dust. The water flow is controlled by adjusting the opening of the solenoid valve.

[0042] Dynamic adjustment phase: When the dust concentration begins to decrease, the controller reduces the water flow by adjusting the size of the corresponding solenoid valve.

[0043] System shutdown phase: When the dust concentration drops below the threshold, the controller gradually closes the solenoid valve and stops the water supply.

[0044] Data management phase: Real-time dust concentration data is synchronously transmitted to the display unit for operating condition monitoring and stored in the data storage module for subsequent equipment status assessment and operation data analysis.

[0045] The above are merely specific embodiments of this utility model. Furthermore, terms such as "upper," "lower," "left," "right," and "middle" used in this utility model are for reference only and are not absolute limitations. Any non-substantial modifications made to this utility model shall be considered as infringing upon the protection scope of this utility model.

Claims

1. A dust removal device for a cutting drum of a mining equipment, characterized by: include The roller is connected to the rotary joint, and the surface of the roller is covered with several cutting teeth; Atomizing nozzles are integrated inside each cutting tooth and are supplied with water through a water supply pipeline; A dust sensor is installed on the rotary joint to monitor dust concentration in real time. When the dust concentration exceeds the preset threshold, the water pump is controlled to supply water to the atomizing nozzles through the water supply pipeline, and the dust is reduced by spraying water mist. The water supply pipeline is connected to the water tank, and a filter is installed on the water supply pipeline. When the water tank is supplied with water by the water pump, the water is filtered through the filter before being used for the atomizing nozzle.

2. A dust removal device for a cutting drum in mining equipment according to claim 1, characterized in that: The rotary joint is equipped with an angular contact ball bearing that mates with a seal ring and a bearing retainer ring.

3. A dust removal device for a cutting drum in mining equipment according to claim 1, characterized in that: After the dust sensor collects the dust concentration, it transmits the signal to the controller. The controller controls the water pump, which draws water from the tank into the filter. The filtered water then flows through the water supply pipeline and through the valve to the atomizing nozzle, where it is sprayed into the air.

4. A dust removal device for a cutting drum in mining equipment according to claim 3, characterized in that: The controller is also connected to a display unit and an alarm module; the display unit is used to display the current dust concentration value in real time; the alarm module is used to issue a warning message when the dust concentration exceeds the standard.

5. A dust removal device for a cutting drum in mining equipment according to claim 3, characterized in that: The valve is an electromagnetic valve.

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