Intelligent ventilation system for efficient mining of mine

Abstract

The invention relates to the field of mine mining, and discloses a mine efficient mining intelligent ventilation system which comprises an intelligent monitoring module, the intelligent monitoring module is installed in a mine, environment information in the mine is collected, and the collected information is transmitted to a central control module; the intelligent monitoring module is connected with a central control module, and the central control module is the core of the whole system, receives parameter information transmitted by the intelligent monitoring module, and controls the ventilation equipment module to start according to the parameter information. According to the air purification module, various treatment modes including multi-stage filtration, oxygen supplement, catalytic oxidation, chemical spraying, adsorbent purification, catalytic combustion and the like are adopted for different harmful gases. Therefore, the system can effectively remove various pollutants in mine air, air quality is improved, and health and safety of workers are guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of mine mining, and in particular to an intelligent ventilation system for efficient mining in mines. Background Art

[0002] In the process of mining mineral resources, in order to ensure the safety of workers in the mine, it is usually necessary to set up a ventilation system to ventilate the air inside the mine and ensure a healthy working environment for the internal workers.

[0003] The common ventilation system is usually composed of fans, ventilation ducts and air vents. When ventilation is needed inside the mine, the fan is started to extract the air inside the mine and transmit the outside air to the inside of the mine, thereby achieving the effect of ventilation and ensuring the safety of the workers inside the mine.

[0004] Considering the complex environment inside the mine, once a variety of toxic gases appear, there are many problems in relying solely on ventilation for treatment: First, it is easy to cause the ventilation effect to be not obvious enough for the purification of different toxic gases, resulting in residual toxic gases, which still affects the current working environment of the mine. There may be a variety of toxic gases such as carbon monoxide, hydrogen sulfide, and sulfur dioxide in the mine, and these gases have different physical and chemical properties. Traditional ventilation systems mainly achieve ventilation through the flow of air, but for some specific toxic gases, simple ventilation may not be able to effectively reduce their concentration to a safe range. For example, carbon monoxide is a colorless and odorless toxic gas that has a stronger ability to bind to hemoglobin than oxygen and can cause hypoxia in the human body. If ventilation alone is relied upon, it may take a long time to reduce the concentration of carbon monoxide to a safe level, during which time workers are still at risk of poisoning. Secondly, it is easy to cause the ventilation effect and the purification effect to not match each other, resulting in poor purification and improvement effects of the air environment inside the mine after a long period of ventilation. For the purification of toxic gases, factors such as the type, concentration, and generation rate of the gas need to be considered. Ventilation alone cannot fully purify the toxic gases. Summary of the invention

[0005] In view of the shortcomings of the prior art, the present invention provides an intelligent ventilation system for efficient mining in mines, which solves the problem that the internal environment of mines is complex and there are multiple toxic gases. There are many problems in relying solely on ventilation and air exchange, such as the purification effect of different toxic gases is not obvious, resulting in residual effects that affect the working environment, and the mismatch between ventilation and purification effects results in poor purification and improvement of the air environment, and ventilation alone cannot fully purify the toxic gases.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an intelligent ventilation system for efficient mining in mines, including an intelligent monitoring module, which is installed inside the mine to collect environmental information inside the mine and transmit the collected information to the central control module. The intelligent monitoring module is connected to the central control module, which is the core of the entire system. It receives parameter information transmitted from the intelligent monitoring module and controls the ventilation equipment module to start according to the parameter information. The central control module is connected to the ventilation equipment module, and the ventilation equipment module is connected to an air purification module. The air purification module purifies the air inside the mine. The central control module is connected to an energy-saving optimization module, which formulates targeted purification plans according to the current mine environment.

[0007] Preferably, the intelligent monitoring module includes a dust monitoring module, which includes a high-precision dust sensor to monitor the dust concentration in the mine air in real time. The dust monitoring module is connected to an oxygen monitoring module, which includes an oxygen sensor to measure the oxygen content in the air. The oxygen monitoring module is connected to a harmful gas monitoring module, and the harmful gas monitoring module uses different detectors to detect different harmful gases.

[0008] Preferably, the harmful gas monitoring module includes a carbon monoxide detector, a hydrogen sulfide detector, a sulfur dioxide detector, a nitrogen dioxide detector and a gas detector.

[0009] Preferably, the air purification module includes a multi-stage filtration module, the multi-stage filtration module is connected to an oxygen supplement module, the oxygen supplement module is connected to a harmful gas purification module, the harmful gas purification module adopts different treatment methods for different harmful gases, and the treatment methods include catalytic oxidation, chemical spraying, adsorbent purification and catalytic combustion, the harmful gas purification module is connected to a catalytic oxidation module, the catalytic oxidation module uses catalytic oxidation technology for carbon monoxide harmful gas to convert harmful gas into harmless substances, the harmful gas purification module is connected to a chemical spray module, the chemical spray module uses chemical spray technology for hydrogen sulfide and sulfuric acid dioxide harmful gas, and uses alkaline solution to neutralize and absorb harmful gas, the harmful gas purification module is connected to an adsorbent purification module, the adsorbent purification module uses adsorbent to adsorb and purify harmful gas, the harmful gas purification module is connected to a catalytic combustion module, the catalytic combustion module uses catalytic combustion technology for gas combustible harmful gas to convert it into carbon dioxide and water.

[0010] Preferably, the multi-stage filtration module includes a coarse filter, a medium filter and a high efficiency filter, wherein the coarse filter mainly intercepts large particles of dust and debris, the medium filter further removes medium particles of pollutants, and the high efficiency filter can filter out tiny particles and harmful substances.

[0011] Preferably, the energy-saving optimization module includes a parameter substitution module, which transmits the gas values ​​monitored by the intelligent monitoring module to the formula calculation module. The parameter substitution module is connected to the formula calculation module, which receives the values ​​detected by the intelligent monitoring module and performs calculations based on the values ​​using a specific formula.

[0012] Preferably, the calculation formula is specifically as follows: when there are multiple harmful gases in the mine, the multiple harmful gases are gas G1, gas G2, gas G3, ... gas G n , and their concentrations are C G1 , C G2 , C G3 ……C Gn ; The total harmful gas concentration is: 1. Calculate the proportion of each gas: For gas G i Ratio: 2. Determine the activation level of the processing module: i The module is standard: define a basic startup coefficient as Introduce a proportional influence factor f Gi , the calculation formula is: Gi =1+k×(R Gi -0.5), where k is an adjustable parameter used to control the influence of the ratio on the influencing factor; the final processed gas G i The module startup coefficient I Gi =I Gibase ×f Gi , where: G i Represents different types of harmful gases, from i to n, representing the i-th type of harmful gas; C Gi Represents the concentration of the i-th harmful gas; C total Represents the total concentration of all harmful gases; R Gi Represents the proportion of the i-th harmful gas in the total harmful gases; I Gibase Represents the basic startup coefficient of the module that processes the i-th harmful gas; f Gi represents the proportional influence factor of the module for processing the i-th harmful gas; k represents an adjustable parameter that controls the influence of the proportion on the influence factor.

[0013] Preferably, the formula calculation module is connected to an execution module, and the execution module controls the air purification module to operate according to the content of the solution selected by the formula calculation module, and the execution module is connected to the air purification module.

[0014] Preferably, the ventilation equipment module includes a fan, a ventilation duct and a vent, and the ventilation equipment module receives control information transmitted from the central control module and starts ventilation.

[0015] Preferably, the oxygen replenishment module includes an oxygen generator and an oxygen cylinder. When the oxygen monitoring module detects that the oxygen content in the mine is lower than a safe value, the oxygen replenishment module automatically starts and transmits oxygen to the interior of the mine through a pipeline.

[0016] The present invention provides an intelligent ventilation system for efficient mining in mines. It has the following beneficial effects:

[0017] 1. The air purification module of the present invention adopts a variety of treatment methods for different harmful gases, including multi-stage filtration, oxygen supplementation, catalytic oxidation, chemical spraying, adsorbent purification and catalytic combustion, etc. This enables the system to effectively remove various pollutants in the mine air, improve air quality, and ensure the health and safety of workers.

[0018] 2. The energy-saving optimization module of the present invention determines the activation degree of different harmful gas treatment modules according to the actual environmental conditions inside the mine using a specific calculation formula, which not only ensures the purification effect but also avoids excessive purification and waste of material resources.

[0019] 3. The present invention sets a formula calculation module and uses a specific calculation formula to enable the system to more accurately control the operation of the air purification module, taking into full account the concentration and proportion of various harmful gases and the characteristics of different processing modules, and can provide a scientific and accurate decision-making basis for the system. Through the formula calculation module, the system can accurately calculate the startup coefficients of different harmful gas processing modules according to the real-time environmental data inside the mine, thereby realizing accurate control of the air purification module. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a system flow chart of the present invention;

[0021] Figure 2 This is a flow chart of the harmful gas purification module of the present invention;

[0022] Figure 3 This is a flow chart of the energy-saving optimization module of the present invention. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example:

[0025] Please refer to the attached Figure 1 - Attachment Figure 3 The embodiment of the present invention provides an intelligent ventilation system for efficient mining in a mine, including an intelligent monitoring module, which is installed inside a mine to collect environmental information inside the mine and transmit the collected information to a central control module. The intelligent monitoring module is connected to a central control module, which is the core of the entire system. By receiving parameter information transmitted from the intelligent monitoring module and controlling the ventilation equipment module to start according to the parameter information, the effect of intelligent ventilation is achieved. The central control module is connected to a ventilation equipment module, which includes a fan, a ventilation duct and a vent. The ventilation equipment module receives control information transmitted from the central control module and starts, thereby achieving the effect of ventilation for the mine. The ventilation equipment module is connected to an air purification module, which purifies the air inside the mine to further ensure the safety of the ore environment. The central control module is connected to an energy-saving optimization module, which formulates a targeted purification plan according to the current mine environment to make the air purification more efficient and more effective.

[0026] The intelligent monitoring module includes a dust monitoring module, which includes a high-precision dust sensor to monitor the dust concentration in the mine air in real time and distinguish the dust content in different particle size ranges. The dust monitoring module is connected to an oxygen monitoring module, which includes an oxygen sensor to accurately measure the oxygen content in the air. The oxygen monitoring module is connected to a harmful gas monitoring module, which uses different detectors to detect different harmful gases. The harmful gas monitoring module includes a carbon monoxide detector, a hydrogen sulfide detector, a sulfur dioxide detector, a nitrogen dioxide detector and a gas detector.

[0027] The air purification module includes a multi-stage filtration module, which includes a coarse filter, a medium filter and a high efficiency filter, wherein the coarse filter mainly intercepts large particles of dust and debris, the medium filter further removes medium particles of pollutants, and the high efficiency filter can filter out tiny particles and harmful substances; the multi-stage filtration module is connected to an oxygen replenishment module, which includes an oxygen generator and an oxygen cylinder. When the oxygen monitoring module detects that the oxygen content in the mine is lower than the safe value, the oxygen replenishment module automatically starts and transmits oxygen to the inside of the mine through a pipeline. The oxygen replenishment module is connected to a harmful gas purification module, and the harmful gas purification module adopts different treatment methods for different harmful gases, and the treatment methods include catalytic oxidation and chemical spraying. , adsorbent purification and catalytic combustion, the harmful gas purification module is connected to a catalytic oxidation module, the catalytic oxidation module uses catalytic oxidation technology to convert harmful gases into harmless substances for carbon monoxide harmful gases, the harmful gas purification module is connected to a chemical spray module, the chemical spray module uses chemical spray technology for hydrogen sulfide and sulfuric acid dioxide harmful gases, and uses alkaline solution to neutralize and absorb harmful gases, the harmful gas purification module is connected to an adsorbent purification module, the adsorbent purification module uses adsorbent to adsorb and purify harmful gases, the harmful gas purification module is connected to a catalytic combustion module, the catalytic combustion module uses catalytic combustion technology for gas and combustible harmful gases, and converts them into carbon dioxide and water.

[0028] Example:

[0029] Catalytic oxidation:

[0030] A catalytic oxidation device is set up in a specific purification area of ​​the mine. The device is equipped with a honeycomb structure or granular filler containing a precious metal catalyst. When the carbon monoxide concentration in the mine air is 50ppm (parts per million), the air passes through the catalytic oxidation device at a certain flow rate. At a temperature of 200°C, after catalytic oxidation treatment, the concentration of carbon monoxide is reduced to below 1ppm, effectively converting harmful carbon monoxide into harmless carbon dioxide, greatly reducing the harm to miners;

[0031] Chemical spray:

[0032] Taking the treatment of hydrogen sulfide as an example, assume that the concentration of hydrogen sulfide in the mine air is 10ppm. The concentration of sodium hydroxide solution in the spray tower is 10%, and the air passes through the spray tower at a specific flow rate. During the spraying process, hydrogen sulfide reacts with sodium hydroxide to produce sodium sulfide and water. After spraying treatment, the concentration of hydrogen sulfide is reduced to below 0.5ppm, effectively removing acidic and harmful gases;

[0033] Adsorbent purification:

[0034] Activated carbon adsorbents are used to treat volatile organic compounds such as benzene, toluene, and xylene in mine air. The total concentration of these VOCs in mine air is 20ppm. After passing through a filter equipped with activated carbon adsorbents, the concentration of VOCs is reduced to less than 2ppm. Activated carbon adsorbents can be replaced or regenerated regularly to ensure their adsorption effect;

[0035] Catalytic combustion:

[0036] A catalytic combustion system was installed in a mine with a high gas content. The concentration of gas (mainly methane) in the mine air is 1%. The air passes through the catalytic combustion device at a certain flow rate. After catalytic combustion treatment at a temperature of 450°C, the gas concentration is reduced to below 0.1%, effectively converting combustible and harmful gases into harmless substances, reducing the risk of explosion and also reducing pollution to the environment.

[0037] The energy-saving optimization module includes a parameter substitution module, which transmits the gas values ​​monitored by the intelligent monitoring module to the formula calculation module. The parameter substitution module is connected to the formula calculation module, which receives the values ​​detected by the intelligent monitoring module, calculates according to the values ​​using a specific formula, and executes the corresponding purification plan according to the conclusion.

[0038] The calculation formula is specifically:

[0039] When there are multiple harmful gases inside the mine, the multiple harmful gases are gas G1, gas G2, gas G3... gas G n , and their concentrations are C G1 , C G2 , C G3 ……C Gn ;

[0040] The total harmful gas concentration is:

[0041]

[0042] 1. Calculate the proportion of each gas:

[0043] For gas G i Ratio:

[0044] 2. Determine the activation level of the processing module:

[0045] To treat gas G i Take the module as an example:

[0046] Define a basic starting coefficient as

[0047] Introduce a proportional influence factor f Gi , the calculation formula is: Gi =1+k×(R Gi -0.5), where k is an adjustable parameter used to control the degree of influence of the ratio on the impact factor;

[0048] Final treatment gas G i The module startup coefficient

[0049] Where: G i Represents different types of harmful gases, from i to n, representing the i-th type of harmful gas; C Gi Represents the concentration of the i-th harmful gas; C total Represents the total concentration of all harmful gases; R Gi Represents the proportion of the i-th harmful gas in the total harmful gases; Represents the basic startup coefficient of the module that processes the i-th harmful gas; f Gi represents the proportional influence factor of the module for processing the i-th harmful gas; k represents an adjustable parameter that controls the influence of the proportion on the influence factor.

[0050] The formula calculation module is connected to an execution module, and the execution module controls the air purification module to operate according to the solution content selected by the formula calculation module, thereby achieving a targeted air purification effect. The execution module is connected to the air purification module.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent ventilation system for efficient mining in mines, characterized in that: It includes an intelligent monitoring module, which is installed inside the mine to collect environmental information inside the mine and transmit the collected information to the central control module. The intelligent monitoring module is connected to the central control module. The central control module is the core of the entire system. It receives parameter information transmitted from the intelligent monitoring module and controls the ventilation equipment module to start according to the parameter information. The central control module is connected to the ventilation equipment module, and the ventilation equipment module is connected to the air purification module. The air purification module purifies the air inside the mine. The central control module is connected to the energy-saving optimization module, and the energy-saving optimization module formulates targeted purification plans according to the current mine environment.

2. The intelligent ventilation system for efficient mining in mines according to claim 1, characterized in that: The intelligent monitoring module includes a dust monitoring module, which includes a high-precision dust sensor to monitor the dust concentration in the mine air in real time. The dust monitoring module is connected to an oxygen monitoring module, which includes an oxygen sensor to measure the oxygen content in the air. The oxygen monitoring module is connected to a harmful gas monitoring module, which uses different detectors to detect different harmful gases.

3. The intelligent ventilation system for efficient mining in mines according to claim 1 is characterized in that: The harmful gas monitoring module includes a carbon monoxide detector, a hydrogen sulfide detector, a sulfur dioxide detector, a nitrogen dioxide detector and a gas detector.

4. The intelligent ventilation system for efficient mining in mines according to claim 1, characterized in that: The air purification module includes a multi-stage filtration module, which is connected to an oxygen supplement module. The oxygen supplement module is connected to a harmful gas purification module. The harmful gas purification module adopts different treatment methods for different harmful gases, and the treatment methods include catalytic oxidation, chemical spraying, adsorbent purification and catalytic combustion. The harmful gas purification module is connected to a catalytic oxidation module. The catalytic oxidation module uses catalytic oxidation technology to convert harmful gases such as carbon monoxide into harmless substances. The harmful gas purification module is connected to a chemical spray module. The chemical spray module uses chemical spray technology to neutralize and absorb harmful gases such as hydrogen sulfide and sulfuric acid dioxide. The harmful gases are neutralized and absorbed by alkaline solution. The harmful gas purification module is connected to an adsorbent purification module. The adsorbent purification module uses adsorbent to adsorb and purify harmful gases. The harmful gas purification module is connected to a catalytic combustion module. The catalytic combustion module uses catalytic combustion technology to convert gas and combustible harmful gases into carbon dioxide and water.

5. The intelligent ventilation system for efficient mining in mines according to claim 1 is characterized in that: The multi-stage filtration module includes a coarse filter, a medium filter and a high efficiency filter, wherein the coarse filter mainly intercepts large particles of dust and debris, the medium filter further removes medium particles of pollutants, and the high efficiency filter can filter out tiny particles and harmful substances.

6. The intelligent ventilation system for efficient mining in mines according to claim 1, characterized in that: The energy-saving optimization module includes a parameter substitution module, which transmits the gas values ​​monitored by the intelligent monitoring module to the formula calculation module. The parameter substitution module is connected to the formula calculation module, which receives the values ​​detected by the intelligent monitoring module and performs calculations based on the values ​​using a specific formula.

7. The intelligent ventilation system for efficient mining in mines according to claim 1, characterized in that: The calculation formula is specifically: when there are multiple harmful gases in the mine, the multiple harmful gases are gas G1, gas G2, gas G3... gas G n , whose concentrations are C G1 、C G2 、C G3 ...C Gn ; Total harmful gas concentration is:

1. Calculate the proportion of each gas: For gas G i Ratio:

2. Determine the activation level of the processing module: i The module is standard: define a basic starting coefficient as Introduce a proportional influence factor f Gi , the calculation formula is: Gi =1+k×(R Gi -0.5), where k is an adjustable parameter used to control the degree of influence of the ratio on the influencing factor; the final processed gas G i Module startup coefficient Among them: G i Represents different types of harmful gases, from i to n, representing the i-th type of harmful gas; C Gi Represents the concentration of the i-th harmful gas; C total Represents the total concentration of all harmful gases; R Gi Represents the proportion of the i-th harmful gas in the total harmful gases; I Gibase Represents the basic startup coefficient of the module that processes the i-th harmful gas; f Gi represents the proportional impact factor of the module that processes the i-th harmful gas; k represents an adjustable parameter that controls the degree of influence of the proportion on the impact factor.

8. The intelligent ventilation system for efficient mining in mines according to claim 1 is characterized in that: The formula calculation module is connected to an execution module, and the execution module controls the air purification module to operate according to the solution content selected by the formula calculation module. The execution module is connected to the air purification module.

9. The intelligent ventilation system for efficient mining in mines according to claim 1, characterized in that: The ventilation equipment module includes a fan, a ventilation duct and a vent. The ventilation equipment module receives control information transmitted from the central control module and starts ventilation.

10. The intelligent ventilation system for efficient mining in mines according to claim 1, characterized in that: The oxygen replenishment module includes an oxygen generator and an oxygen cylinder. When the oxygen monitoring module detects that the oxygen content in the mine is lower than the safe value, the oxygen replenishment module automatically starts and transmits oxygen to the inside of the mine through a pipeline.

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