A protective device for a dust collector fan silencer

Abstract

This invention discloses a protective device for a dust collector fan silencer, including a silencer pipe with a perforated plate and a filling layer fixedly installed inside. A protective mechanism is fixedly installed on the silencer pipe, comprising a fixed sleeve, a rotating sleeve, a housing, and a sealing door. This invention collects data on internal and external interference factors during the use of the protective device, obtains corresponding control signals, and comprehensively and efficiently monitors the operation of the silencer pipe during use. Based on this, it issues corresponding warnings to the monitoring end, achieving accurate judgment and control of the silencer pipe's usage. Furthermore, the combined use of the sealing door and the air collection hood enables rapid cleaning of the filling layer inside the silencer, further improving operational continuity. The combined use of the fixed sleeve and the rotating sleeve, along with the circulating flow of the magnetohydrodynamic fluid, effectively improves the noise reduction capability of the silencer pipe while also protecting the silencer.

Description

Technical Field

[0001] This invention relates to the field of dust collector fans, and more particularly to a protective device for a dust collector fan silencer. Background Technology

[0002] Dust collectors are commonly used in industrial production environments to absorb, collect, or filter particulate matter and dust from the air, maintaining air quality and a clean working environment. However, these fans often generate high noise levels during operation, which can negatively impact the health of workers and the comfort of the production environment. In such cases, silencers are often installed on the inlet or outlet pipes of the dust collector to reduce the noise generated by the fan.

[0003] However, in the use of existing dust collector fan silencers, because the air drawn in and discharged by the dust collector fan contains dust, the filling material in the silencer is easily blocked by dust during daily use. At this time, the silencer needs to be stopped and disassembled to clean its interior, which undoubtedly affects the continuity of work. At the same time, repeated disassembly can affect the tightness of the internal filling layer of the silencer, leading to damage to the silencer and making it difficult to achieve rapid cleaning of the internal filling layer of the silencer.

[0004] Furthermore, when the volume of gas being processed is large or the gas pressure is high, the muffler filling layer is more likely to absorb sound and heat energy during operation, which leads to a gradual increase in the temperature of the muffler filling layer. Since existing mufflers lack protective structures, they are prone to damage when exposed to high temperatures for extended periods, resulting in increased processing costs.

[0005] To address the aforementioned technical shortcomings, a solution is proposed. Summary of the Invention

[0006] The purpose of this invention is to provide a protective device for a dust collector fan silencer to address the technical deficiencies mentioned in the background art.

[0007] The objective of this invention can be achieved through the following technical solution: a protective device for a dust collector fan silencer, comprising a silencer pipe, an orifice plate and a filling layer fixedly installed inside the silencer pipe, and a protective mechanism fixedly installed on the silencer pipe. The protective mechanism includes a fixed sleeve, a rotating sleeve, a housing and a closed door. The housing is located below the silencer pipe, and a control panel is fixedly installed on the housing.

[0008] The filling layer is located between the fixed sleeve and the orifice plate. The rotating sleeve is movably sleeved on the fixed sleeve. Both the rotating sleeve and the fixed sleeve are provided with ash discharge grooves. The closed door is fixedly installed at both ends of the silencer pipe. The bottom of the silencer pipe is fixedly installed with a gas collection hood and an air inlet pipe. The air inlet pipe is located on one side of the gas collection hood.

[0009] Multiple electromagnets are fixedly installed on the inner wall of the silencer pipe. A cavity one is opened in the fixed sleeve, and a cavity two is opened in the rotating sleeve. Cavities one and two are filled with magnetic fluid. Cavities one and two are connected by pipelines. Cavity two is fixedly connected to the water pump inside the box by pipelines.

[0010] Preferably, the closed door consists of a fixed plate and a rotating plate. The fixed plate is fixedly connected to the silencer pipe, and the rotating plate is movably connected to the fixed plate. Multiple moving blocks are movably installed between the rotating plate and the fixed plate. A circular through groove is provided at the center of both the rotating plate and the fixed plate.

[0011] Preferably, a motor is fixedly installed on the silencer pipe, a rotating rod is fixedly installed on the output end of the motor, and gear one and gear two are fixedly installed on the rotating rod;

[0012] Multiple tooth blocks are fixedly installed on the outer circumference of the rotating plate. The tooth blocks are meshed with gears. A connecting block is fixedly installed on the outer wall of the rotating sleeve. A tooth block is fixedly installed on the connecting block. Gears are meshed with tooth blocks.

[0013] Preferably, a connecting pipe is movably connected to the side of the rotating plate away from the fixed plate, a slider is fixedly installed on the inner circumference of the rotating plate, a groove is opened on the outer surface of the connecting pipe, the slider is movably installed in the groove, and a connecting flange is fixedly installed on the side of the connecting pipe away from the silencer pipe.

[0014] Preferably, the control panel includes a comprehensive data acquisition unit, a work evaluation unit, a risk assessment unit, and a control unit;

[0015] The integrated data acquisition unit is used to collect internal and external interference factor data of the protection equipment. The internal interference factor data includes operation evaluation value and noise reduction effect value, while the external interference factor data includes wind pressure intensity distribution value. The unit then sends the internal interference factor data to the operation evaluation unit and the external interference factor data to the control unit.

[0016] After receiving data on internal interference factors, the work assessment unit performs a work assessment on the data and generates a risk signal based on the assessment results. The obtained risk signal is then sent to the risk assessment unit via a communication connection.

[0017] After receiving data from the work assessment unit, the risk assessment unit performs a risk assessment, generates an anomaly signal based on the assessment results, and controls the components to make corresponding action instructions.

[0018] After receiving data from external interference factors, the control unit performs an operational evaluation on the data, generates a control signal based on the evaluation results, and then controls the components to make corresponding action instructions based on the control signal.

[0019] Preferably, the analysis process of the work evaluation unit for the protection equipment is as follows:

[0020] The operation evaluation value of the protection device is obtained in each sub-time period. The operation evaluation value represents the part of the product value of the operation parameters after normalization processing that exceeds the preset storage threshold. The operation parameters represent the stability value.

[0021] The noise reduction effect value of the protection device is obtained in each sub-time period. The noise reduction effect value represents the number of times the value of the characteristic data of the protection device exceeds the preset threshold in the sub-time period. The characteristic data represents the environmental leakage value and decibel change value of the protection device in the sub-time period.

[0022] Preferably, the risk assessment unit analyzes the protection equipment as follows:

[0023] After obtaining the operation evaluation value and noise reduction effect value of the protection equipment in each sub-time period, the product value obtained after data normalization of the operation evaluation value and noise reduction effect value is marked as the dynamic risk assessment coefficient, and then the dynamic risk assessment coefficient Pi in each sub-time period of the equipment is obtained. A rectangular coordinate system is established with the number of sub-time periods as the X-axis and the dynamic risk assessment coefficient Pi as the Y-axis. The dynamic risk assessment coefficient curve is plotted by plotting points.

[0024] Simultaneously, a preset dynamic risk assessment coefficient threshold curve is plotted in the coordinate system, and the risk angle range value and risk difference value are obtained. The risk angle range value and risk difference value are compared and analyzed with the preset risk angle range value and preset risk difference value recorded and stored internally, and an abnormal signal is generated.

[0025] The beneficial effects of this invention are as follows:

[0026] (1) The present invention uses the combination of a closed door and a gas collection hood. In actual use, when the filling layer inside the silencer needs to be cleaned, the closed door is activated to close both ends of the silencer. At the same time as the closed door is closed, the rotating sleeve rotates synchronously, so that the ash discharge groove on the rotating sleeve and the fixed sleeve overlaps. At this time, high-pressure gas is delivered into the silencer through the air inlet pipe. After the high-pressure airflow passes through the perforated plate, it comes into contact with the filling layer. The high-pressure airflow drives the impurities in the filling layer to be discharged from the ash discharge groove, and the impurities are collected and discharged through the bottom gas collection hood. In this way, the filling layer is cleaned without disassembly. At the same time, the cleaning time is short and the impact on the continuity of work is small, so as to achieve rapid cleaning of the filling layer inside the silencer.

[0027] (2) The present invention also uses the fixed sleeve and the rotating sleeve in combination. In the initial state, the ash discharge grooves on the fixed sleeve and the rotating sleeve are staggered. At this time, the ash discharge grooves are closed. During the use of the silencer, under the driving action of the water pump, the magnetic fluid circulates in the cavity one, cavity two and the box, thereby carrying away the heat of the filling layer and avoiding the high temperature inside the silencer, thereby protecting the silencer.

[0028] (3) The present invention also collects data on internal and external interference factors during the use of the protection equipment to obtain corresponding control signals, and conducts comprehensive and efficient supervision of the operation of the protection equipment during use. That is, it comprehensively analyzes and compares the collected data range with the preset data range to obtain relevant evaluation signals, and issues corresponding warnings to the supervision end accordingly. At the same time, the control components make compensatory actions to realize the adaptive adjustment of the protection device and accurate judgment and control of the usage situation. It has a high degree of intelligence and effectively improves the noise reduction capability of the silencer. Attached Figure Description

[0029] The invention will now be further described with reference to the accompanying drawings;

[0030] Figure 1 This is a schematic diagram of the structure of the present invention;

[0031] Figure 2 This is a schematic diagram of the silencer tube in this invention;

[0032] Figure 3 This is a schematic diagram of the protective mechanism in this invention;

[0033] Figure 4 This is a schematic diagram of the structure of the closed door in this invention;

[0034] Figure 5 This is a schematic diagram of the connecting pipe in this invention;

[0035] Figure 6 This is a system block diagram of the present invention;

[0036] Figure 7 This is a schematic diagram of the filling layer structure in this invention;

[0037] Figure 8 This is a schematic diagram of the structure of cavity one and cavity two in this invention.

[0038] Legend: 1. Silencer pipe; 101. Orifice plate; 102. Filling layer; 103. Gas collection hood; 104. Air inlet pipe; 2. Protective mechanism; 201. Fixed sleeve; 202. Rotating sleeve; 203. Box body; 204. Sealing door; 205. Ash discharge chute; 206. Cavity 1; 207. Cavity 2; 208. Fixed plate; 209. Rotating plate; 210. Moving block; 211. Rotating rod; 212. Gear 1; 213. Gear 2; 214. Gear block 1; 215. Connecting block; 216. Gear block 2; 217. Connecting pipe; 218. Slider; 219. Slide groove; 3. Control panel. Detailed Implementation

[0039] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] Example 1: This example is used to solve the problem that the filling material in the muffler is easily clogged by dust. In this case, the machine needs to be stopped and the muffler needs to be disassembled to clean its interior, which undoubtedly affects the continuity of work. At the same time, repeated disassembly can affect the tightness of the filling layer inside the muffler, which can lead to damage to the muffler and make it difficult to quickly clean the filling layer inside the muffler.

[0041] Please see Figure 1 - Figure 6 As shown, this embodiment is a protective device for a dust collector fan silencer, including a silencer pipe 1. A perforated plate 101 and a filling layer 102 are fixedly installed inside the silencer pipe 1. A protective mechanism 2 is fixedly installed on the silencer pipe 1. The protective mechanism 2 includes a fixed sleeve 201, a rotating sleeve 202, a housing 203, and a closed door 204. The housing 203 is located below the silencer pipe 1, and a control panel 3 is fixedly installed on the housing 203.

[0042] The closed door 204 consists of a fixed plate 208 and a rotating plate 209. A connecting pipe 217 is movably connected to the side of the rotating plate 209 away from the fixed plate 208. A slider 218 is fixedly installed on the inner circumference of the rotating plate 209. A groove 219 is opened on the outer surface of the connecting pipe 217. The slider 218 is movably installed in the groove 219. A connecting flange is fixedly installed at the end of the connecting pipe 217 away from the rotating plate 209 for pipe connection.

[0043] The fixed plate 208 is fixedly connected to the silencer pipe 1, and the rotating plate 209 is movably connected to the fixed plate 208. Multiple moving blocks 210 are movably installed between the rotating plate 209 and the fixed plate 208. A circular through groove is opened at the center of both the rotating plate 209 and the fixed plate 208. The fixed plate 208, the moving blocks 210 and the rotating plate 209 form a shutter structure. Different moving grooves are opened on the rotating plate 209 and the fixed plate 208. While the rotating plate 209 rotates, the moving blocks 210 gradually move. After reaching the position, the moving blocks 210 close the through groove.

[0044] A motor is fixedly installed on the silencer pipe 1. A rotating rod 211 is fixedly installed on the output end of the motor. Gear 1 212 and gear 213 are fixedly installed on the rotating rod 211. Multiple tooth blocks 1 214 are fixedly installed on the outer circumference of the rotating plate 209. Tooth blocks 1 214 mesh with gear 1 212. A connecting block 215 is fixedly installed on the outer wall of the rotating sleeve 202. Tooth blocks 216 are fixedly installed on the connecting block 215. Gear 213 meshes with tooth blocks 216. When it is necessary to close the sealing door 204, the motor is started to drive the rotating rod 211 to rotate, thereby driving gear 1 212 and gear 213 to rotate synchronously. Under the action of tooth blocks 1 214 and tooth blocks 216, the rotating plate 209 and the rotating sleeve 202 rotate simultaneously, thereby closing the sealing door 204 and opening the ash discharge chute 205.

[0045] Meanwhile, both ends of the silencer pipe 1 are fixedly installed with closed doors 204, so two motors are set up to drive the two rotating plates 209 to rotate simultaneously, so that the closed doors 204 can be closed synchronously.

[0046] The filling layer 102 is located between the fixed sleeve 201 and the perforated plate 101. The rotating sleeve 202 is movably sleeved on the fixed sleeve 201. Both the rotating sleeve 202 and the fixed sleeve 201 are provided with dust discharge grooves 205. The sealing door 204 is fixedly installed at both ends of the silencer pipe 1. The bottom of the silencer pipe 1 is fixedly installed with a gas collection hood 103 and an air inlet pipe 104. The air inlet pipe 104 is located on one side of the gas collection hood 103. The bottom of the gas collection hood 103 is fixedly installed with an exhaust pipe. The exhaust pipe is connected to an exhaust fan for extracting dust from inside the silencer pipe 1.

[0047] In actual use, when the filling layer 102 inside the silencer tube 1 needs to be cleaned, the sealing door 204 is activated to seal both ends of the silencer tube 1. At the same time as the sealing door 204 is closed, the rotating sleeve 202 rotates synchronously, so that the rotating sleeve 202 and the ash discharge groove 205 on the fixed sleeve 201 overlap. At this time, high-pressure gas is delivered into the silencer tube 1 through the air inlet pipe 104. After the high-pressure airflow passes through the perforated plate 101, it comes into contact with the filling layer 102. The high-pressure airflow drives the impurities in the filling layer 102 to be discharged from the ash discharge groove 205, and the impurities are collected and discharged through the bottom air collection hood 103. In this way, the filling layer 102 is cleaned without disassembly. At the same time, the cleaning time is short and the impact on the continuity of work is small, realizing the rapid cleaning of the filling layer 102 inside the silencer.

[0048] Control panel 3 includes a comprehensive data acquisition unit, a work evaluation unit, a risk assessment unit, and a control unit;

[0049] The integrated data acquisition unit collects internal and external interference factor data of the protection equipment, and sends the internal interference factor data to the operation evaluation unit and the external interference factor data to the control unit. The internal interference factor data includes operation evaluation values ​​and noise reduction effect values, while the external interference factor data includes wind pressure intensity distribution values.

[0050] Upon receiving the internal interference factor data, the work assessment unit immediately performs a risk assessment and analysis on the internal interference factor data of the protection equipment. The specific steps are as follows:

[0051] The operation evaluation value of the protection device is obtained in each sub-time period. The operation evaluation value represents the part of the product value of the operation parameters after normalization processing that exceeds the preset storage threshold. The operation parameters represent the stability value.

[0052] The stability value is obtained by a vibration sensor fixedly installed on the muffler 1. The stability value represents the amplitude of the muffler 1 during use. The larger the value, the more abnormal vibrations the muffler 1 generates during use. In a single use cycle of the muffler 1, the amplitude values ​​of multiple sub-time periods are collected, and the collected results are assigned the symbol X1.

[0053] During the operation of silencer 1, a dynamic change curve is plotted with sub-time as the X-axis and X1 of adjacent sub-time periods as the Y-axis. A preset dynamic change threshold curve is plotted in the coordinate system to obtain the difference between the intervals where the dynamic risk change line is above the preset dynamic change threshold line. The difference is then assigned the symbols A1, A2, and A3, etc., and the formula is applied accordingly. Obtain the stability value Xo, where A1, A2, and A3 are the differences in intervals under different horizontal coordinates, W1 and W2 are preset scaling coefficients, W1 and W2 > 0, and Xo is the stability value;

[0054] The noise reduction effect value of the protection device is obtained in each sub-time period. The noise reduction effect value represents the number of times the value of the characteristic data of the protection device exceeds the preset threshold in the sub-time period. The characteristic data represents the environmental leakage value and decibel change value of the protection device in the sub-time period.

[0055] The environmental leakage amount represents the volume of gas leaking outward from the connection point with the pipe during the use of the silencer pipe 1. The larger the value, the greater the gas leakage, which in turn indicates a poorer sealing at the connection point. In a single working cycle, the environmental leakage amount Qi is collected from multiple sub-time periods.

[0056] The decibel change value is obtained by collecting multiple decibel detectors fixedly installed near the silencer 1. It represents the degree of noise leakage during the use of the silencer 1. The larger the value, the worse the noise reduction effect of the silencer 1. In a single working cycle, the decibel change value DBi of multiple sub-time periods is collected.

[0057] After collecting the environmental leakage amount Qi and the decibel change value DBi for the sub-time period, according to the formula Obtain the noise reduction effect value Zo, where K1, K2, K3 and Ei are preset proportional coefficients, K1, K2, K3, Ei>0, and Zo is the noise reduction effect value.

[0058] After collecting the stability value Xo and the noise reduction effect value Zo within the sub-time period, the formula is used... The dynamic risk assessment coefficient Pi for each sub-time period of the device is obtained, where a, b and Li are preset proportional coefficients, and a, b and Li > 0. A rectangular coordinate system is established with each sub-time period as the X-axis and the dynamic risk assessment coefficient Pi as the Y-axis. The dynamic risk assessment coefficient curve is plotted by plotting points.

[0059] Simultaneously, a preset dynamic risk assessment coefficient threshold curve is plotted in this coordinate system, and the risk angle range value and risk difference value are obtained. The risk angle range value and risk difference value are then compared and analyzed with the preset risk angle range value and preset risk difference value entered and stored internally. The specific process is as follows:

[0060] If the risk angle range value is less than the preset risk angle range value and the risk difference value is less than the preset risk difference value, no signal will be generated. If the risk angle range value is greater than or equal to the preset angle range value and the risk difference value is greater than or equal to the preset risk difference value, a risk signal will be generated.

[0061] The obtained risk signals are then transmitted to the risk assessment unit, and the risk assessment unit analyzes the protection equipment as follows:

[0062] After obtaining the risk signals from the protection devices in each sub-time period, the risk signals are immediately assessed and the risk level is determined. The corresponding protection device displays a risk indicator and flashes a red warning light.

[0063] Upon receiving data on external interference factors, the control unit immediately performs control and analysis operations on the external interference factors data of the protection equipment. The specific steps are as follows:

[0064] The wind pressure intensity distribution value of the protection device is obtained in each sub-time period. The wind pressure intensity distribution value represents the part of the product value obtained after normalization of the operating parameters in the sub-time period that exceeds the preset storage threshold. The operating parameters represent the local pressure value.

[0065] The local pressure value is obtained by multiple pressure sensors fixedly installed in the filling layer 102. It represents the distribution of the internal wind pressure field during the use of the silencer 1. The larger the local pressure value collected by a single pressure sensor, the larger the gas volume and gas flow rate in the current area, and thus the larger the noise generated in the current area.

[0066] The number and position of the electromagnets are matched with the pressure sensor. After detecting the local pressure value Po of each region within a sub-time period, the formula is used to... Obtain the wind pressure intensity distribution value Io, where Ni and Mi are preset proportional coefficients, Ni and Mi > 0, and Io is the wind pressure intensity distribution value.

[0067] After obtaining the wind pressure intensity distribution value Io of each region within a sub-time period, the control unit compares it with the preset value Lo. When Io≥Lo, the electromagnet corresponding to that region has a current of Q1, and when Io<Lo, the electromagnet corresponding to that region has a current of Q2. Where Q1>Q2, the larger the current of the electromagnet, the stronger the magnetic force it generates.

[0068] The specific working principle is as follows:

[0069] When the electromagnet generates magnetic force, the magnetic material in the magnetofluid accumulates and forms a protective layer. When sound waves are conducted from the filling layer 102 to the fixed sleeve 201 and the rotating sleeve 202, the accumulated magnetic material further blocks the sound waves, and the sound waves are conducted and absorbed by the surrounding flowing liquid, which greatly improves the noise reduction capability of the muffler 1. Furthermore, by collecting data on internal and external interference factors during operation, corresponding control signals are obtained, and the operation of the muffler 1 is comprehensively and efficiently monitored during use. That is, the collected data range is comprehensively analyzed and compared with the preset data range, so as to obtain relevant evaluation signals. Based on this, corresponding warnings are issued to the monitoring end, and the control components make compensatory actions, effectively improving the muffler's noise reduction capability.

[0070] Example 2: This example addresses the problem that when the volume of gas being processed is large or the gas pressure is high, the muffler filling layer 102 easily absorbs more sound and heat energy during operation, leading to a gradual increase in the temperature of the muffler filling layer 102. Since traditional mufflers lack protective structures, they are prone to damage when exposed to high temperatures for extended periods, resulting in increased processing costs.

[0071] Please see Figure 7 - Figure 8As shown, the present invention also includes electromagnets. Multiple electromagnets are fixedly installed on the inner wall of the silencing tube 1. A cavity 206 is opened in the fixed sleeve 201, and a cavity 207 is opened in the rotating sleeve 202. Cavities 206 and 207 are filled with magnetic fluid. Cavities 206 and 207 are connected by pipelines. Cavity 207 is fixedly connected to a water pump inside the housing 203 by a pipeline. The specific flow path of the magnetic fluid is as follows: the magnetic fluid in the housing 203 is transported to cavity 207 by the water pump, then flows to cavity 206 through cavity 207, and then is transported to housing 203 through the pipeline from cavity 206. The pipelines are all rubber hoses, and their length is long enough not to affect the rotation of the rotating sleeve 202.

[0072] In the initial state, the ash discharge grooves 205 on the fixed sleeve 201 and the rotating sleeve 202 are staggered. At this time, the ash discharge grooves 205 are in the closed state. During the use of the silencer pipe 1, under the driving action of the water pump, the magnetofluid circulates in the cavity 1 206, the cavity 207 and the box 203, thereby carrying away the heat of the filling layer 102 and avoiding high internal temperature of the silencer pipe, thus protecting the silencer.

[0073] As can be seen from Embodiments 1 and 2, the control signals are obtained by collecting data on internal and external interference factors during the use of the protection equipment, and by comprehensively and efficiently monitoring the operation of the muffler 1 during use. This involves comprehensively analyzing and comparing the collected data range with the preset data range to obtain relevant evaluation signals, and issuing corresponding warnings to the monitoring end accordingly, thereby achieving accurate judgment and control of the usage of the muffler 1.

[0074] At the same time, the cleaning efficiency of the filling layer 102 is effectively improved by the combined use of the closed door 204 and the air collection hood 103, which enables rapid cleaning of the filling layer 102 inside the muffler and further improves the continuity of work. In addition, by the combined use of the fixed sleeve 201 and the rotating sleeve 202, the circulation of the magnetic fluid effectively improves the noise reduction capability of the muffler pipe 1 and also protects the muffler.

[0075] The above description is merely an example and illustration of the structure of the present invention. Those skilled in the art can make various modifications or additions to the specific embodiments described, or use similar methods to replace them, as long as they do not deviate from the structure of the invention or exceed the scope defined in the claims, all of which should fall within the protection scope of the present invention.

[0076] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0077] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A protective device for a dust collector fan silencer, comprising a silencer pipe (1), wherein a perforated plate (101) and a filling layer (102) are fixedly installed inside the silencer pipe (1), characterized in that, The silencer pipe (1) is equipped with a protective mechanism (2), which includes a fixed sleeve (201), a rotating sleeve (202), a housing (203) and a closed door (204). The housing (203) is located below the silencer pipe (1), and a control panel (3) is fixedly installed on the housing (203). The rotating sleeve (202) is movably sleeved on the fixed sleeve (201). Both the rotating sleeve (202) and the fixed sleeve (201) are provided with ash discharge grooves (205). The sealing door (204) is fixedly installed at both ends of the silencer pipe (1). The bottom of the silencer pipe (1) is fixedly installed with a gas collection hood (103) and an air inlet pipe (104). The sealing door (204) closes or opens both ends of the silencer pipe (1). When the sealing door (204) is closed, the ash discharge grooves (205) on the rotating sleeve (202) and the fixed sleeve (201) overlap. At this time, high-pressure gas is delivered into the silencer pipe (1) through the air inlet pipe (104). After the high-pressure airflow passes through the perforated plate (101), it comes into contact with the filling layer (102). The high-pressure airflow drives the impurities in the filling layer (102) to be discharged from the ash discharge grooves (205), and the impurities are collected and discharged through the bottom gas collection hood (103). Multiple electromagnets are fixedly installed on the inner wall of the silencing pipe (1). A cavity one (206) is opened in the fixed sleeve (201), and a cavity two (207) is opened in the rotating sleeve (202). The cavity one (206) and the cavity two (207) are filled with magnetic fluid. The cavity one (206) and the cavity two (207) are connected by pipelines. The cavity two (207) is fixedly connected to the water pump inside the box (203) by pipelines.

2. The protection device for a dust collector fan silencer according to claim 1, characterized in that, The closed door (204) is composed of a fixed plate (208) and a rotating plate (209). The fixed plate (208) is fixedly connected to the silencer pipe (1), and the rotating plate (209) is movably connected to the fixed plate (208). Multiple moving blocks (210) are movably installed between the rotating plate (209) and the fixed plate (208). A circular through groove is provided at the center of both the rotating plate (209) and the fixed plate (208).

3. The protection device for a dust collector fan silencer according to claim 2, characterized in that, A motor is fixedly installed on the silencer pipe (1), and a rotating rod (211) is fixedly installed on the output end of the motor. Gear 1 (212) and gear 2 (213) are fixedly installed on the rotating rod (211). Multiple tooth blocks (214) are fixedly installed on the outer circumference of the rotating plate (209). The tooth blocks (214) mesh with the gears (212). A connecting block (215) is fixedly installed on the outer wall of the rotating sleeve (202). A tooth block (216) is fixedly installed on the connecting block (215). The gears (213) mesh with the tooth blocks (216).

4. The protection device for a dust collector fan silencer according to claim 3, characterized in that, A connecting pipe (217) is movably connected to the side of the rotating plate (209) away from the fixed plate (208). A slider (218) is fixedly installed on the inner circumference of the rotating plate (209). A groove (219) is opened on the outer surface of the connecting pipe (217). The slider (218) is movably installed in the groove (219). A connecting flange is fixedly installed on the side of the connecting pipe (217) away from the silencer pipe (1).

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