Dust removal system

Abstract

The utility model relates to the field of coal mine underground dust removal, and provides a dust removal system which comprises a dry type dust removal mechanism and a wet type dust removal mechanism. The dry dust removal mechanism comprises a first shell, a first filtering part and a compressed gas device; and the wet dust removal mechanism comprises a second shell, a spraying part, a second filtering part and a blow-off pipeline. According to the dust removal system provided by the utility model, the dry type dust removal mechanism effectively captures most dust particles in the air through the first filtering part, the wet type dust removal mechanism further wets and settles the residual dust particles through water mist generated by the spraying part, and the dust removal efficiency is remarkably improved through the synergistic effect of the dry type dust removal mechanism and the wet type dust removal mechanism. The system is suitable for various dust types, including dry dust, wet dust, viscous dust and the like, and can meet the dust removal requirements in different working environments.

Description

Technical Field

[0001] The utility model relates to the field of dust removal in coal mines, in particular to a dust removal system. Background Art

[0002] In industrial environments that generate large amounts of dust, such as coal mines, tunnel excavations, and construction sites, dust pollution not only severely impacts air quality but can also pose a serious threat to worker health. To effectively control and reduce airborne dust particles, dust removal systems have become indispensable equipment in these industrial environments.

[0003] Most traditional dust removal systems use a single dust removal method, such as dry dust removal or wet dust removal. Dry dust removal systems usually capture dust particles in the air through filter materials (such as cloth bags, filter cartridges, etc.), and have the advantages of high dust removal efficiency and easy maintenance. However, when dry dust removal systems deal with sticky dust or humid air, the filter materials are easily clogged, resulting in a decrease in dust removal efficiency. Wet dust removal systems use methods such as water spraying or misting to moisten and settle dust particles, and have the advantages of stable dust removal effect and strong adaptability to sticky dust. However, wet dust removal systems usually have high energy consumption, and the treated air may contain a lot of water mist, which puts a certain burden on subsequent air treatment equipment. Utility Model Content

[0004] The utility model provides a dust removal system for solving the problem that although the existing dry dust removal or wet dust removal can reduce the dust concentration to a certain extent, they each have different shortcomings and limitations.

[0005] The utility model provides a dust removal system, comprising:

[0006] A dry dust removal mechanism comprises a first housing, a first filter component and a compressed gas device;

[0007] The first housing is provided with a first air inlet, a first air outlet, and a first air cylinder. The first filter component is disposed in the first air cylinder, and the first filter component divides the first air cylinder into a first space and a second space. The first space is communicated with the first air inlet, and the second space is communicated with the first air outlet. The injection end of the compressed gas device is directed toward the first filter component and is disposed in the first space and / or the second space.

[0008] A wet dust removal mechanism includes a second shell, a spray component, a second filter component and a sewage pipe; the second shell is provided with a second air inlet, a second air outlet and a second air cylinder, the second filter component is arranged in the second air cylinder, and the second filter component divides the second air cylinder into a third space and a fourth space, the third space is connected to the first air outlet through the second air inlet, and the fourth space is connected to the second air outlet, the spray component is arranged in the third space, and the sewage pipe is connected to the lowest point of the third space and / or the fourth space.

[0009] According to a dust removal system provided by the utility model, the first filtering component includes: a cloth bag and a cloth bag bracket; the cloth bag bracket is connected in the first air duct, the cloth bag is hung on the cloth bag bracket, and the cloth bag divides the first air duct into the first space and the second space.

[0010] According to a dust removal system provided by the utility model, the cloth bag includes a filter layer, a support layer and a waterproof and breathable layer;

[0011] The waterproof and breathable layer is located on the outermost side of the bag and is in direct contact with the coal dust gas;

[0012] The filter layer is located at the innermost side of the cloth bag, and the support layer is located between the waterproof and breathable layer and the filter layer.

[0013] According to a dust removal system provided by the utility model, the compressed gas device includes: an air pump, an air pipe and a first nozzle;

[0014] The air pump is arranged outside the first shell, one end of the air pipe is connected to the air pump, the other end of the air pipe passes through the first shell, and the other end of the air pipe is arranged in the second space and connected to the first nozzle.

[0015] According to a dust removal system provided by the utility model, a coal dust filter hopper is provided at the bottom of the first space, and an automatic dust exhaust valve is provided at the outlet of the coal dust filter hopper.

[0016] According to a dust removal system provided by the utility model, the spray component includes: a water pump, an annular pipeline and a plurality of second nozzles;

[0017] The annular pipe is arranged in the third space and communicated with the water pump, and a plurality of the second nozzles are connected to the annular pipe at intervals.

[0018] According to a dust removal system provided by the utility model, the dust removal system also includes:

[0019] an air duct, connected to the first air outlet and the second air inlet;

[0020] an induced draft fan, disposed in the air duct, for introducing air toward the second air inlet;

[0021] A blower is connected to the first air inlet and is used to supply air into the first air inlet.

[0022] According to a dust removal system provided by the present invention, the second filter component includes: a filter screen, which is arranged in the second air duct, and the filter screen separates the second air duct into the third space and the fourth space.

[0023] According to a dust removal system provided by the utility model, the wet dust removal mechanism further includes: a motor and fan blades;

[0024] The motor is arranged in the fourth space, and the rotating end of the motor is connected to the fan blade to lead out the coal dust in the fourth space.

[0025] According to a dust removal system provided by the utility model, the dust removal system also includes:

[0026] an exhaust pipe connected to the second air outlet;

[0027] a connecting pipe, communicating with the exhaust pipe and the first air inlet;

[0028] The valve is arranged on the connecting pipe and is used to close or open the connecting pipe.

[0029] The dust removal system provided by the present invention has a dry dust removal mechanism that effectively captures most of the dust particles in the air through the first filter component, while the wet dust removal mechanism uses the water mist generated by the spray component to further moisten and settle the remaining dust particles. The two work together to significantly improve the dust removal efficiency. The system is suitable for a variety of dust types, including dry dust, wet dust, and sticky dust, and can meet the dust removal needs in different working environments. In addition, the compressed gas device in the dry dust removal mechanism can clean the accumulated dust on the first filter component through regular backflushing, extending its service life while reducing energy consumption. The wet dust removal mechanism discharges the deposited dust and water out of the system through the sewage pipe, realizing the recycling of resources and environmental protection. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0031] Figure 1This is one of the schematic diagrams of the dust removal system provided by the present invention.

[0032] Figure 2 It is a schematic diagram of the dry dust removal mechanism provided by the utility model.

[0033] Figure 3 It is a schematic diagram of the wet dust removal mechanism provided by the utility model.

[0034] Figure 4 It is a schematic diagram of the spray component provided by the utility model.

[0035] Figure 5 This is the second schematic diagram of the dust removal system provided by the present invention.

[0036] Reference numerals:

[0037] 100. Dry dust removal mechanism; 101. First shell; 1011. First air inlet; 1012. First air outlet; 102. First filter component; 103. Compressed gas device; 1031. Air pipe; 1032. First nozzle; 104. Coal dust filter; 105. Automatic dust discharge valve; 200. Wet dust removal mechanism; 201. Second shell; 2011. Second air inlet; 2012. Second air outlet; 202. Spray component; 2021. Annular duct; 2022. Second nozzle; 203. Second filter component; 204. Motor; 205. Fan blade; 206. Sewage pipe; 300. Air duct; 400. Induced draft fan; 500. Supply fan; 600. Exhaust pipe; 700. Connecting pipe; 800. Valve. DETAILED DESCRIPTION

[0038] To make the purpose, technical solutions, and advantages of the present invention more clear, the following will be combined with the accompanying drawings to clearly and completely describe the technical solutions of the present invention. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] The following combination Figure 1-Figure 5 The dust removal system provided by the utility model is described. The dust removal system is equipped with two sets of dust removal mechanisms, which avoids the situation where the dust removal mechanism of a single device is ineffective, effectively improves work efficiency, and efficiently removes mine dust in the working environment. After purification, the dust concentration is greatly reduced, the environment is improved, the safety and environmental protection of coal mines are improved, and it is beneficial to the health of workers. It has good practicality.

[0040] In some embodiments, as Figures 1 to 3As shown, the dust removal system includes a dry dust removal mechanism 100 and a wet dust removal mechanism 200. The dry dust removal mechanism 100 includes a first housing 101, a first filter component 102, and a compressed gas device 103; the first housing 101 is provided with a first air inlet 1011, a first air outlet 1012, and a first air cylinder, the first filter component 102 is arranged in the first air cylinder, and the first filter component 102 separates the first air cylinder into a first space and a second space, the first space is connected to the first air inlet 1011, and the second space is connected to the first air outlet 1012; the injection end of the compressed gas device 103 is directed toward the first filter component 102, and is arranged in the first space and / or the second space; the wet dust removal mechanism 200 It includes a second shell 201, a spray component 202, a second filter component 203 and a sewage pipe 206; the second shell 201 is provided with a second air inlet 2011, a second air outlet 2012 and a second air duct, the second filter component 203 is arranged in the second air duct, the second filter component 203 divides the second air duct into a third space and a fourth space, the third space is connected to the first air outlet 1012 through the second air inlet 2011, and the fourth space is connected to the second air outlet 2012, the spray component 202 is arranged in the third space, and the sewage pipe 206 is connected to the lowest point of the third space and / or the fourth space.

[0041] In this embodiment, the first shell 101 serves as the main frame of the dry dust removal mechanism 100, and is provided with a first air inlet 1011, a first air outlet 1012 and an internal first air cylinder. The first filter component 102 is located inside the first air cylinder and is used to capture dust particles in the air. The filter component divides the first air cylinder into a first space and a second space, wherein the first space is connected to the first air inlet 1011, allowing dust-laden air to enter; the second space is connected to the first air outlet 1012, outputting air that has undergone preliminary filtration. The compressed gas device 103 has its injection end facing the first filter component 102 and can be arranged in the first space or the second space (or both). The device sprays compressed gas into the first filter component 102 regularly or as needed to remove dust attached thereto and maintain filtration efficiency.

[0042] The second housing 201 serves as the main framework of the wet dust removal mechanism 200 and is provided with a second air inlet 2011, a second air outlet 2012, and a second internal air duct. A second filter component 203 is located within the second air duct and is used to further capture dust particles in the air. This filter component divides the second air duct into a third space and a fourth space. The third space is connected to the first air outlet 1012 via the second air inlet 2011 and receives air that has been initially filtered by the dry dust removal mechanism 100. The fourth space is connected to the second air outlet 2012 and outputs deeply purified air. The spray component 202 is located within the third space and is used to spray water mist onto the passing air, moistening and settling fine dust particles in the air. The sewage pipe 206 is connected to the lowest point of the third space and / or the fourth space and is used to discharge deposited sewage and particulate matter.

[0043] During operation, dust-laden air enters the first space through the first air inlet 1011. It is then filtered by the first filter element 102, where most dust particles are trapped. Clean air then enters the second space and is discharged through the first air outlet 1012. Air initially filtered by the dry dust removal mechanism 100 enters the third space through the second air inlet 2011. It is then humidified by the spray element 202, moistening and settling fine dust particles. This moistened air is then further filtered by the second filter element 203, ultimately resulting in deeply purified air, which is then discharged through the second air outlet 2012. Wastewater and particulate matter deposited in the third and / or fourth spaces are discharged from the system through the sewage pipe 206.

[0044] The dust removal system provided by the present invention comprises a dry dust removal mechanism 100 which effectively captures most of the dust particles in the air through the first filter component 102, while a wet dust removal mechanism 200 uses the water mist generated by the spray component 202 to further moisten and settle the remaining dust particles. The two work together to significantly improve the dust removal efficiency. The system is suitable for a variety of dust types, including dry dust, wet dust, and sticky dust, and can meet the dust removal needs in different working environments. In addition, the compressed gas device 103 in the dry dust removal mechanism 100 can clean the accumulated dust on the first filter component 102 by means of regular backflushing, thereby extending its service life and reducing energy consumption. The wet dust removal mechanism 200 discharges the deposited dust and water out of the system through the sewage pipe 206, thereby realizing the recycling of resources and the protection of the environment.

[0045] In some embodiments, as Figure 1 and Figure 2 As shown, the first filter component 102 includes a cloth bag and a cloth bag bracket. The cloth bag bracket is connected to the first air duct, and the cloth bag is hung on the cloth bag bracket. The cloth bag divides the first air duct into a first space and a second space.

[0046] In this embodiment, the bag is typically made of durable filter material, such as polyester, polypropylene, or glass fiber. These materials have excellent filtration performance and wear resistance, effectively capturing dust particles in the air. The shape and size of the bag are designed based on actual application requirements to ensure that it fits tightly within the first air duct and provides sufficient filtration area.

[0047] The bag holder supports and secures the bag, ensuring it remains stably suspended within the first duct. Typically made of a sturdy material such as metal or plastic, the holder possesses sufficient strength and rigidity to withstand the weight of the bag and the dust particles attached to it. The holder's structural design takes into account the uniformity of air flow and the expansion of the bag to ensure optimal filtration performance.

[0048] The bag holder is fixedly attached to the interior of the first duct via welding, bolting, or other appropriate connection methods. The filter bag is attached to the bag holder using hooks, clips, or other connectors, ensuring a tight fit and a good seal. This connection method not only facilitates bag installation and removal, but also helps maintain bag stability and filtration efficiency.

[0049] When dust-laden air enters the first air duct through the first air inlet 1011, it first comes into contact with the bag. The filter material on the bag captures dust particles in the air, while clean air passes through the tiny pores of the bag into the second space and is ultimately discharged through the first air outlet 1012. Over time, more and more dust particles accumulate on the bag, potentially reducing its filtration efficiency. Therefore, the compressed gas device 103 sprays compressed gas into the bag periodically or as needed to remove dust particles adhering to it, thereby maintaining its filtration efficiency.

[0050] In some embodiments, the bag includes a filter layer, a support layer, and a waterproof and breathable layer; the waterproof and breathable layer is located on the outermost side of the bag and is in direct contact with the coal dust gas; the filter layer is located on the innermost side of the bag, and the support layer is located between the waterproof and breathable layer and the filter layer.

[0051] In this embodiment, the filter layer serves as the innermost part of the bag and is typically made of fine fiber materials such as polyester, glass, or ceramic fibers. These materials have excellent filtration performance and chemical stability, effectively capturing airborne dust particles, including tiny coal dust particles. The thickness and fiber diameter of the filter layer are designed based on actual application requirements to ensure sufficient filtration area and capture efficiency.

[0052] The waterproof and breathable layer is located on the outermost side of the bag and comes into direct contact with the coal dust gas. It is typically made of a special waterproof material, such as polytetrafluoroethylene (PTFE) membrane, polyurethane (PU)-coated fabric, or polyethylene (PE) waterproof cloth. These materials offer excellent waterproof and breathable properties, preventing moisture from the coal dust gas from penetrating into the bag while allowing air to pass through smoothly. The presence of the waterproof and breathable layer protects the filter and support layers from moisture erosion, thereby improving the bag's durability and filtration efficiency.

[0053] The support layer, located between the filter layer and the waterproof and breathable layer, primarily supports and reinforces the bag's structure. It's typically made of coarse fiber or a mesh structure, such as polypropylene mesh, polyester mesh, or metal mesh. The support layer increases the bag's strength and stability, preventing it from cracking or deforming due to excessive force during use. It also helps distribute pressure on the filter layer, extending the bag's service life.

[0054] As coal dust gas passes through the bag, it first comes into contact with the waterproof, breathable layer. This layer blocks moisture from entering the bag while allowing dust particles in the gas to contact the filter layer. The fibrous material in the filter layer captures these dust particles, while clean air passes through the tiny pores of the fiber material into the support layer and is ultimately discharged through the bag's outlet. Over time, dust particles accumulate on the filter layer, potentially reducing its filtration efficiency. Therefore, the bag needs to be cleaned or replaced regularly to maintain its optimal filtration performance.

[0055] In some embodiments, as Figure 1 and Figure 2 As shown, the compressed gas device 103 includes an air pump, an air pipe 1031, and a first nozzle 1032. The air pump is disposed outside the first housing 101. One end of the air pipe 1031 is connected to the air pump, and the other end of the air pipe 1031 passes through the first housing 101. The other end of the air pipe 1031 is disposed in the second space and connected to the first nozzle 1032.

[0056] The air pump is the power source of the compressed gas device 103 and is responsible for generating compressed air or high-pressure gas. The air pipe 1031 is typically made of corrosion-resistant and high-pressure-resistant materials to ensure safety and reliability during use. The air pipe 1031 is used to transmit the compressed air or high-pressure gas generated by the air pump to the first nozzle 1032. The first nozzle 1032 is located in the second space and connected to the other end of the air pipe 1031. The first nozzle 1032 is responsible for spraying the compressed air or high-pressure gas onto the bag to remove dust particles adhering to it.

[0057] When the dust removal system needs to clean dust from the bags, the air pump activates, generating compressed air or high-pressure gas. This gas is transmitted through air pipe 1031 to first nozzle 1032. First nozzle 1032 sprays the gas evenly onto the bags, using the impact of the gas to remove dust particles from the bags. The removed dust particles are then removed from the bags by the gas and collected and processed by other parts of the dust removal system.

[0058] In this embodiment, a coal dust filter 104 is provided at the bottom of the first space, and an automatic dust exhaust valve 105 is provided at the outlet of the coal dust filter 104 .

[0059] The coal dust filter 104 is located at the bottom of the first space. Its primary function is to collect and store coal dust particles that settle from the air. The filter design typically takes into account the characteristics and settling patterns of coal dust, ensuring that the dust falls smoothly into the filter and preventing accumulation or clogging inside. The shape and size of the filter are designed based on actual application requirements to ensure that it can accommodate sufficient coal dust particles and conveniently discharge them when needed. The filter is typically constructed of corrosion-resistant and wear-resistant materials to extend its service life.

[0060] The automatic dust discharge valve 105 is installed at the outlet of the coal dust filter 104. Its main function is to control the discharge of coal dust. When the coal dust in the filter hopper accumulates to a certain level, the automatic dust discharge valve 105 will open and discharge the coal dust from the system. This design not only improves the automation level of the dust removal system, but also avoids the tedious and dangerous manual cleaning. The working principle of the automatic dust discharge valve 105 is generally based on pressure difference or time control. When the accumulation of coal dust in the filter hopper causes the pressure to rise or reaches the preset discharge time, the valve 800 will automatically open, allowing the coal dust to be discharged from the system through a pipe or other discharge device.

[0061] In some embodiments, as Figures 1 to 4 As shown, the spray component 202 includes: a water pump, an annular pipe 2021 and a plurality of second nozzles 2022; the annular pipe 2021 is arranged in the third space and communicates with the water pump, and the plurality of second nozzles 2022 are connected to the annular pipe 2021 at intervals.

[0062] In this embodiment, the water pump is responsible for pumping water from the water source and transporting it to the annular pipe 2021 through a pipe to provide power for the spray. The annular pipe 2021 is arranged in the third space, usually along a certain boundary or structure to facilitate the uniform distribution of water. The annular pipe 2021 is made of corrosion-resistant and high-pressure resistant materials to ensure its long-term stable operation. The annular pipe 2021 is connected to the water pump through a pipe or water pipe to ensure that the water flow can smoothly enter the annular pipe 2021. A plurality of second nozzles 2022 are connected to the annular pipe 2021 at intervals, usually along the circumference of the annular pipe 2021. The second nozzle 2022 is responsible for spraying water mist into the third space to achieve a dust removal effect.

[0063] During operation, the water pump draws water from a source and delivers it through a pipe to annular conduit 2021. Once in annular conduit 2021, the water is sprayed into the third space in the form of a mist through multiple second nozzles 2022. Within the third space, the mist combines with dust particles in the air and is then carried away by gravity or air flow, achieving a dust removal effect.

[0064] In some embodiments, as Figures 1 to 3 As shown, the dust removal system further includes: an air duct 300, an induced draft fan 400, and a blower 500. The air duct 300 is connected to the first air outlet 1012 and the second air inlet 2011; the induced draft fan 400 is disposed in the air duct 300 and is used to draw air toward the second air inlet 2011; the blower 500 is connected to the first air inlet 1011 and is used to supply air into the first air inlet 1011.

[0065] Specifically, the air duct 300 is used to ensure that the air can flow smoothly in the system and realize the communication between the first air outlet 1012 and the second air inlet 2011. The induced draft fan 400 is arranged in the air duct 300, close to the second air inlet 2011. Its main function is to generate negative pressure and suck the air that has undergone preliminary treatment into the second air inlet 2011 of the dust removal system. When the induced draft fan 400 is started, it will generate suction through the rotating blades, thereby guiding the air to the second air inlet 2011 and pushing the air to flow in the system. The blower 500 is connected to the first air inlet 1011 of the dust removal system. Its main function is to send coal dust gas into the first air inlet 1011. The blower 500 generates positive pressure through the rotating blades and sends air from the outside or a specific air source into the first air inlet 1011.

[0066] When the dust removal system is in operation, the induced draft fan 400 and the blower 500 work together. The blower 500 delivers coal dust gas into the first air inlet 1011. After passing through the bag filter and other processing components and undergoing preliminary filtration by the dry dust removal mechanism 100, the induced draft fan 400 guides the gas into the second air inlet 2011. The air is then humidified by the spray component 202, moistening and settling the fine dust particles in the air, and undergoing a second filtration.

[0067] In some embodiments, as Figure 1 and Figure 3 As shown, the second filter component 203 includes: a filter screen, which is arranged in the second air duct, and the filter screen separates the second air duct into a third space and a fourth space.

[0068] Among them, the main function of the filter is to filter and block impurities in the air. In the process of separating the second air duct into the third space and the fourth space, the filter plays a key role in isolation and purification. The filter is usually made of materials such as polypropylene, polyester, polyurethane, glass fiber or metal mesh (such as stainless steel mesh). These materials have different properties, such as chemical stability, flame retardancy, high temperature resistance, chemical corrosion resistance and high strength. Suitable materials can be selected according to specific application scenarios and needs. The structure of the filter may include single-layer, double-layer or multi-layer structures. The single-layer structure is relatively simple and suitable for scenarios with low filtration requirements; the double-layer or multi-layer structure has higher filtration efficiency and longer service life.

[0069] In some embodiments, as Figures 1 to 3 As shown, the wet dust removal mechanism 200 further includes a motor 204 and a fan 205. The motor 204 is disposed in the fourth space, and the rotating end of the motor 204 is connected to the fan 205 to draw out the coal dust in the fourth space. The sewage with coal dust attached to the fan 205 is thrown onto the inner wall of the second housing 201.

[0070] Motor 204 is the power source of wet dust removal mechanism 200 and is located within the fourth space (i.e., the space behind the filter). The rotating end of motor 204 is connected to fan blades 205, driving them to rotate. When motor 204 rotates fan blades 205, they generate airflow, drawing out pollutants such as coal dust from the fourth space. Furthermore, since fan blades 205 come into contact with moist air or water mist during rotation, sewage containing coal dust may adhere to fan blades 205.

[0071] When moist air or mist carrying pollutants such as coal dust enters the fourth space, they pass through the filter. The filter blocks larger dust particles, while smaller dust particles, due to their moisture content, are more easily captured. The rotation of the fan blades 205 not only helps to draw air and coal dust out of the fourth space, but also, through their rotational motion, throws the sewage and coal dust attached to the blades 205 onto the inner wall of the second housing 201. This allows the sewage and coal dust to be collected and disposed of.

[0072] In some embodiments, as Figure 5 As shown, the dust removal system further includes an exhaust pipe 600, a connecting pipe 700, and a valve 800. The exhaust pipe 600 is connected to the second air outlet 2012; the connecting pipe 700 is connected to the exhaust pipe 600 and the first air inlet 1011; the valve 800 is provided on the connecting pipe 700 and is used to close or open the connecting pipe 700 and is used to control the opening and closing of the valve 800 according to the dust removal situation.

[0073] In this embodiment, the main function of the exhaust pipe 600 is to discharge the air after the dust removal process into the external environment. Figure 5 In the illustrated embodiment, the exhaust duct 600 is connected to the second air outlet 2012, ensuring that the dust-removed air can be discharged smoothly. The connecting pipe 700 is used to connect the exhaust duct 600 and the first air inlet 1011, thereby forming a complete air circulation loop. This loop allows air to be processed by the dust removal system and then returned to the first air inlet 1011 for further dust removal.

[0074] By controlling the opening and closing of valve 800, the dust removal efficiency can be adjusted according to the dust removal situation. For example, when the dust removal effect is good, valve 800 is closed, and the coal dust gas after dust removal by dry dust removal mechanism 100 and wet dust removal mechanism 200 is discharged through exhaust pipe 600. When the dust removal effect is poor, valve 800 is opened, and the coal dust gas after dust removal by dry dust removal mechanism 100 and wet dust removal mechanism 200 returns to dry dust removal mechanism 100 through exhaust pipe 600 and connecting pipe 700 for further dust removal, thereby ensuring the dust removal effect.

[0075] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A dust removal system, characterized in that: include: A dry dust removal mechanism comprises a first housing, a first filter component and a compressed gas device; The first housing is provided with a first air inlet, a first air outlet, and a first air cylinder. The first filter component is disposed in the first air cylinder, and the first filter component divides the first air cylinder into a first space and a second space. The first space is communicated with the first air inlet, and the second space is communicated with the first air outlet. The injection end of the compressed gas device is directed toward the first filter component and is disposed in the first space and / or the second space. A wet dust removal mechanism includes a second shell, a spray component, a second filter component and a sewage pipe; the second shell is provided with a second air inlet, a second air outlet and a second air cylinder, the second filter component is arranged in the second air cylinder, and the second filter component divides the second air cylinder into a third space and a fourth space, the third space is connected to the first air outlet through the second air inlet, and the fourth space is connected to the second air outlet, the spray component is arranged in the third space, and the sewage pipe is connected to the lowest point of the third space and / or the fourth space.

2. The dust removal system according to claim 1, characterized in that: The first filter component includes: a cloth bag and a cloth bag bracket; the cloth bag bracket is connected to the first air duct, the cloth bag is hung on the cloth bag bracket, and the cloth bag divides the first air duct into the first space and the second space.

3. The dust removal system according to claim 2, characterized in that: The cloth bag comprises a filter layer, a support layer and a waterproof and breathable layer; The waterproof and breathable layer is located on the outermost side of the bag and is in direct contact with the coal dust gas; The filter layer is located at the innermost side of the cloth bag, and the support layer is located between the waterproof and breathable layer and the filter layer.

4. The dust removal system according to claim 1, characterized in that: The compressed gas device includes: an air pump, an air pipe and a first nozzle; The air pump is arranged outside the first shell, one end of the air pipe is connected to the air pump, the other end of the air pipe passes through the first shell, and the other end of the air pipe is arranged in the second space and connected to the first nozzle.

5. The dust removal system according to claim 1, characterized in that: A coal dust filter is provided at the bottom of the first space, and an automatic dust exhaust valve is provided at the outlet of the coal dust filter.

6. The dust removal system according to claim 1, characterized in that: The spray component includes: a water pump, an annular pipeline and a plurality of second nozzles; The annular pipe is arranged in the third space and communicated with the water pump, and a plurality of the second nozzles are connected to the annular pipe at intervals.

7. The dust removal system according to claim 1, characterized in that: The dust removal system also includes: an air duct, connected to the first air outlet and the second air inlet; an induced draft fan, disposed in the air duct, for introducing air toward the second air inlet; A blower is connected to the first air inlet and is used to supply air into the first air inlet.

8. The dust removal system according to claim 1, characterized in that: The second filter component includes a filter net disposed in the second air duct, and the filter net separates the second air duct into the third space and the fourth space.

9. The dust removal system according to claim 1, characterized in that: The wet dust removal mechanism further includes: a motor and fan blades; The motor is arranged in the fourth space, and the rotating end of the motor is connected to the fan blade to lead out the coal dust in the fourth space.

10. The dust removal system according to any one of claims 1 to 9, characterized in that: The dust removal system also includes: an exhaust pipe connected to the second air outlet; a connecting pipe, communicating with the exhaust pipe and the first air inlet; The valve is arranged on the connecting pipe and is used to close or open the connecting pipe.

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