Dust removal device for mining

Abstract

The invention relates to the technical field of mine dust removal, and discloses a dust removal device for mining, which comprises a sleeve, an upper shaft sleeve movably sleeves the position, close to the top, of the outer surface of the sleeve, an annular groove is formed in the bottom of the inner wall of the upper shaft sleeve, a telescopic pipe is movably mounted in an inner cavity of the sleeve, and an adjusting device is fixedly mounted at the bottom of the telescopic pipe. And the adjusting device is positioned in the dust filtering cloth bag. When the airflow flows through the dust filtering cloth bag, the resistance is increased, the air pressure in the closed containing cavity is further increased, the effect acts on the top of the adjusting device, the adjusting device is driven to move downwards, the pressure intensity in the sleeve is reduced, the pressure intensity and the air pressure borne by the top of the adjusting device are balanced, and at the moment, the adjusting device stops moving; the new dust filtering cloth bag participates in filtering, and at the moment, the resistance to airflow flowing through the dust filtering cloth bag is reduced, so that the air pressure on the inner side and the outer side of the dust filtering cloth bag is kept stable, and the filtering effect of the dust filtering cloth bag is ensured on the premise of ensuring the passing speed and the passing efficiency of the air.

Description

Technical Field

[0001] The present application relates to the technical field of mine dust removal, and in particular to a dust removal device for mine exploitation. Background Art

[0002] The mine tunnel is in a closed state, which causes floating dust to fill the interior of the mine tunnel during the mining process, resulting in miners in a harsh working environment. In order to avoid this, a dust removal device is used in mining. A fan is used to send air with floating dust into the device equipped with dust removal bags. When the airflow passes through the dust removal bags, the floating dust will be filtered and retained on the surface of the dust removal bags, thereby achieving the purpose of purifying the air. However, the surface area of ​​the bags in traditional dust removal devices is fixed. If the air pressure difference between the inside and outside of the bags is too low, the airflow will not be able to pass through the bags normally, resulting in reduced dust removal efficiency. If the air pressure difference between the inside and outside of the bags is too high, the pressure on the inside of the bags will be too high, causing the bags to rupture. In addition, excessive air pressure will cause the gaps on the surface of the bags to become larger, resulting in reduced dust filtration efficiency. In this regard, the present application document proposes a dust removal device for mining, aiming to solve the above-mentioned problems. Summary of the invention

[0003] The present application proposes a dust removal device for use in mining, which has the advantage of automatically adjusting the surface area of ​​dust filter bags involved in dust filtering according to the air pressure, so as to solve the problem that the dust filtering efficiency of traditional equipment is affected when the air pressure is too low or too high.

[0004] To achieve the above-mentioned purpose, the present application adopts the following technical solution: a dust removal device for mining, comprising an outer shell, an upper partition plate and a lower partition plate are arranged on the inner wall of the outer shell near the top, so that the outer shell, the upper partition plate and the lower partition plate form a closed cavity.

[0005] Specifically, a plug plate is clamped on the inner wall of the shell at a position below the lower partition plate, and a dust filter bag is arranged on the top of the plug plate. The dust filter bag is used to filter floating dust in the airflow.

[0006] Specifically, the top movable sleeve of the upper partition plate is provided with an adjusting device, the adjusting device extends into the interior of the dust filter bag, and the inner wall of the shell is provided with a driving device at a position between the upper partition plate and the lower partition plate, and the driving device cooperates with the adjusting device.

[0007] Furthermore, the dust filter bags and the adjustment devices are distributed in an array and correspond one to one. An air intake duct is fixedly installed on the left side of the outer surface of the shell. The internal movable sleeve of the air intake duct is provided with a wind shield, and the wind shield can adjust the flow direction of the airflow by rotating.

[0008] Specifically, a dust collecting duct is arranged on the right side of the outer surface of the shell near the top, and the dust collecting duct is connected with the cavity inside the shell located above the upper partition plate. The output end of the dust collecting duct is connected to the dust collecting box, and the gas discharged through the dust collecting duct will leave the dust inside the exhaust duct after passing through the exhaust duct.

[0009] Specifically, an exhaust air duct is provided at a position near the bottom on the right side of the outer surface of the shell, and a limit rope is provided at the bottom of the inner cavity of the shell, and the limit rope is connected to the bottom of the dust filter bag; Specifically, the air inlet duct adopts a split-opening design, the top opening is connected to the cavity inside the shell above the upper partition plate, the bottom opening is connected to the cavity inside the shell between the lower partition plate and the plug plate, and the air inlet duct input port is connected to the fan.

[0010] Furthermore, the adjusting device includes a sleeve, an upper sleeve is movably provided on the outer surface of the sleeve near the top, an annular groove is provided at the bottom of the inner wall of the upper sleeve, a connecting pipe port is provided on the outer surface of the upper sleeve, and the connecting pipe port is connected to an air pump through a pipeline, and a side hole is provided on the outer surface of the sleeve near the top, and the air pump can supply or exhaust air to the inner cavity of the sleeve through the annular groove and the side hole when running.

[0011] Specifically, the connecting pipe port is connected to the inner cavity of the sleeve through the annular groove and the side hole; Specifically, a transmission gear is fixedly sleeved on a position below the upper sleeve on the outer surface of the sleeve, and a lower sleeve is sleeved on a position near the middle of the outer surface of the sleeve; Specifically, the upper shaft sleeve is movably mounted on the upper partition plate, the transmission gear cooperates with the driving device, and the lower shaft sleeve is movably mounted on the lower partition plate.

[0012] Furthermore, a telescopic tube is movably installed in the inner cavity of the sleeve, and the cross-section of the telescopic tube is polygonal.

[0013] Specifically, an adjusting device is fixedly installed on the bottom of the telescopic tube, and the adjusting device is located inside the dust filter bag. A contact sensing ring is provided on the outer ring of the adjusting device. The output end of the contact sensing ring is connected to the input end of the air pump through a signal connection. The contact sensing ring is in contact with the inner wall of the dust filter bag. When the contact sensing ring senses that it is out of contact with the dust filter bag, the air pump will be activated.

[0014] Specifically, a sealing cover is provided on the top of the sleeve, and the sealing cover is in a normally closed state.

[0015] Further, the regulating device comprises an annular plate, an air chamber is provided at a position near the center of the top of the annular plate, the air chamber is connected with the inner cavity of the telescopic tube, a limit ring is provided at a position near the top of the inner wall of the air chamber, a sealing block is provided at the bottom of the air chamber, a travel seat is provided inwardly of the air chamber, a circular hole is provided on the travel seat and cooperates with the sealing block, annular grooves are provided at the top and bottom of the annular plate, an upper bypass pipe and a lower bypass pipe are provided at the bottom and top of the inner wall of the air chamber respectively, the upper bypass pipe is connected with the lower annular groove, and the lower bypass pipe is connected with the upper annular groove, when the pressure inside the air chamber increases, the airflow is discharged from the lower annular groove through the upper bypass pipe, when the pressure inside the air chamber decreases, the travel seat moves upward and blocks the upper bypass pipe, and at this time the airflow is discharged from the upper annular groove through the lower bypass pipe; Specifically, the travel seat blocks the lower bypass pipe in the initial state.

[0016] Furthermore, the diameter of the adjustment device is the same as the radius of the dust filter bag, and the contact induction ring is in contact with the inner wall of the dust filter bag.

[0017] Furthermore, there is a 1 cm gap between the axis of the sleeve and the axis of the dust filter bag, and the adjustment device is in an eccentric state inside the dust filter bag.

[0018] Furthermore, the driving device includes a mounting frame, a power machine is arranged on the top of the mounting frame, a driving gear is fixedly installed on one end of the output shaft of the power machine, and when the power machine drives the driving gear to rotate, the sleeve is driven to rotate through the transmission effect of the transmission gear; Specifically, the power machine corresponds to the regulating device one by one, and the driving gear is meshed with the transmission gear.

[0019] This application has the following beneficial effects.

[0020] The device utilizes the negative pressure in the inner cavity of the sleeve and the air pressure intensity on the top of the adjusting device to achieve self-balance, thereby automatically adjusting the area of ​​the dust filter bag involved in dust filtering, ensuring that the air pressure difference between the inside and outside of the dust filter bag is maintained within an appropriate range, and utilizing the eccentric setting of the adjusting device between the dust filter bags, the adjusting device can drive the dust filter bag to vibrate during rotation, thereby separating the dust attached to the inner surface of the dust filter bag and causing it to fall on the top of the adjusting device. By rotating the wind shield to change the internal wind direction of the air inlet duct and opening the cover at the same time, the negative pressure can be used to suck out the accumulated dust on the top of the adjusting device and send it into the dust collecting box through the dust collecting duct. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which constitute a part of the specification, illustrate embodiments disclosed in the present application and, together with the description, serve to explain the principles disclosed in the present application.

[0022] The present disclosure may be more clearly understood from the following detailed description with reference to the accompanying drawings, in which: Figure 1 It is a structural diagram of the present invention; Figure 2 It is the internal structure diagram of the present invention; Figure 3 It is a cross-sectional view of the structure of the present invention; Figure 4 It is the main structure diagram of the present invention; Figure 5 It is a schematic diagram of the structural adjustment device of the present invention; Figure 6 It is a cross-sectional view of the structural adjustment device of the present invention; Figure 7 The structure of the present invention Figure 6 The enlarged schematic diagram at A in the middle; Figure 8 It is a structural stroke device diagram of the present invention; Fig. 9 It is a cross-sectional view of the structural stroke device of the present invention; Fig.10 This is a diagram of the structural driving device of the present invention.

[0023] In the figure; 1, shell; 2, upper partition plate; 3, lower partition plate; 4, plug plate; 5, dust filter bag; 6, adjusting device; 61, sleeve; 62, upper sleeve; 63, annular groove; 64, connecting pipe port; 65, air pump; 66, side hole; 67, transmission gear; 68, lower sleeve; 69, telescopic tube; 601, adjusting device; 6011, annular plate; 6012, air chamber; 6013, limit ring; 6014, sealing block; 6015, travel seat; 6016, annular groove; 6017, upper bypass pipe; 6018, lower bypass pipe; 602, contact induction ring; 603, cover; 7, driving device; 71, mounting frame; 72, power machine; 73, driving gear; 8, air intake duct; 9, wind shield; 10, dust collecting duct; 11, exhaust duct; 12, limit rope. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0025] A dust removal device for mining, see Figure 1-Figure 4, including a shell 1, an upper partition plate 2 and a lower partition plate 3 are arranged on the inner wall of the shell 1 near the top, so that the shell 1, the upper partition plate 2 and the lower partition plate 3 form a closed cavity.

[0026] See also Figure 1-Figure 4 A plug plate 4 is clamped on the inner wall of the housing 1 below the lower partition plate 3, and a dust filter bag 5 is arranged on the top of the plug plate 4. The dust filter bag 5 is used to filter floating dust in the airflow.

[0027] See also Figure 1-Figure 4 The top movable sleeve of the upper partition plate 2 is provided with an adjusting device 6, and the adjusting device 6 extends into the interior of the dust filter bag 5. A driving device 7 is provided on the inner wall of the outer shell 1 between the upper partition plate 2 and the lower partition plate 3, and the driving device 7 cooperates with the adjusting device 6.

[0028] See also Figure 1-Figure 4 The dust filter bags 5 and the adjustment devices 6 are distributed in an array and correspond one to one. An air inlet duct 8 is fixedly installed on the left side of the outer surface of the shell 1. The internal movable sleeve of the air inlet duct 8 is provided with a wind shield 9, and the wind shield 9 can adjust the flow direction of the airflow by rotating.

[0029] See also Figure 1-Figure 4 A dust collecting duct 10 is arranged on the right side of the outer surface of the shell 1 near the top. The dust collecting duct 10 is connected to the cavity inside the shell 1 located above the upper partition plate 2. The output end of the dust collecting duct 10 is connected to the dust collecting box. The gas discharged through the dust collecting duct 10 will leave the dust inside the exhaust duct 11 after passing through the exhaust duct 11.

[0030] See also Figure 1-Figure 4 An exhaust duct 11 is arranged on the right side of the outer surface of the shell 1 near the bottom, and a limiting rope 12 is arranged at the bottom of the inner cavity of the shell 1, and the limiting rope 12 is connected to the bottom of the dust filter bag 5.

[0031] The limit rope 12 is connected to the bottom of the dust filter bag 5. When the adjusting device 601 moves upward driven by the telescopic tube 69, the dust filter bag 5 will not move synchronously with the adjusting device 601, thereby avoiding the problem of folding and curling of the dust filter bag 5 and causing abnormal dust removal.

[0032] See also Figure 1-Figure 4 The air inlet duct 8 adopts a split-opening design, the top opening is connected to the cavity inside the shell 1 located above the upper partition plate 2, the bottom opening is connected to the cavity inside the shell 1 located between the lower partition plate 3 and the plug plate 4, and the input port of the air inlet duct 8 is connected to the fan.

[0033] See also Figure 5-Figure 7The adjusting device 6 includes a sleeve 61, an upper sleeve 62 is movably sleeved on the outer surface of the sleeve 61 near the top, an annular groove 63 is provided at the bottom of the inner wall of the upper sleeve 62, a connecting pipe port 64 is provided on the outer surface of the upper sleeve 62, and the connecting pipe port 64 is connected to an air pump 65 through a pipeline, and a side hole 66 is provided on the outer surface of the sleeve 61 near the top. The air pump 65 can supply or exhaust air to the inner cavity of the sleeve 61 through the annular groove 63 and the side hole 66 when it is running.

[0034] See also Figure 5-Figure 7 The connecting pipe port 64 is connected to the inner cavity of the sleeve 61 through the annular groove 63 and the side hole 66.

[0035] See also Figure 5-Figure 7 A transmission gear 67 is fixedly sleeved on the outer surface of the sleeve 61 below the upper sleeve 62, and a lower sleeve 68 is sleeved on the outer surface of the sleeve 61 near the middle.

[0036] See also Figure 4-Figure 7 The upper shaft sleeve 62 is movably mounted on the upper partition plate 2 , the transmission gear 67 cooperates with the driving device 7 , and the lower shaft sleeve 68 is movably mounted on the lower partition plate 3 .

[0037] See also Figure 5-Figure 7 A telescopic tube 69 is movably installed in the inner cavity of the sleeve 61, and the cross-sectional shape of the telescopic tube 69 is polygonal.

[0038] See also Figure 2 and Figure 5-Figure 7 An adjusting device 601 is fixedly installed at the bottom of the telescopic tube 69. The adjusting device 601 is located inside the dust filter bag 5. A contact sensing ring 602 is provided on the outer ring of the adjusting device 601. The output end of the contact sensing ring 602 is connected to the input end of the air pump 65 through a signal connection. The contact sensing ring 602 contacts the inner wall of the dust filter bag 5. When the contact sensing ring 602 senses that it is out of contact with the dust filter bag 5, the air pump 65 is activated.

[0039] After the dust removal mode is turned on, the wind shield 9 rotates upward. At this time, the fan sends the outside air into the cavity between the lower partition plate 3 and the plug plate 4 through the air inlet duct 8. Since the shell 1, the lower partition plate 3 and the plug plate 4 constitute a closed cavity, the air pressure inside the cavity increases, and the gas can only pass through the dust filter bag 5 and be filtered. Since the adjusting device 601 is located inside the dust filter bag 5, the dust filter bag 5 is divided into two parts, upper and lower. At this time, the gas can only be filtered through the dust filter bag 5 located above the adjusting device 601, while the dust filter bag 5 located below the adjusting device 601 cannot participate in the filtering operation. When a large amount of dust left by the filtration is attached to the inner surface of the dust filter bag 5 above the adjusting device 601, the resistance of the airflow through the dust filter bag 5 is increased. The air pressure inside the closed cavity formed by the plug plate 4 is further increased, and this effect acts on the top of the adjusting device 601, thereby driving the adjusting device 601 to move downward. When the adjusting device 601 moves downward, the telescopic tube 69 moves synchronously, thereby reducing the pressure inside the sleeve 61 and achieving balance with the air pressure on the top of the adjusting device 601. At this time, the adjusting device 601 stops moving. After the adjusting device 601 stops moving, a new dust filter bag 5 participates in the filtration. At this time, the resistance encountered by the airflow through the dust filter bag 5 is reduced, thereby maintaining the air pressure inside and outside the dust filter bag 5 stable, ensuring the filtering effect of the dust filter bag 5 while ensuring the gas passage speed and efficiency, avoiding the problem of damage to the surface of the dust filter bag 5 due to excessive pressure difference, or low gas passage rate due to excessive air pressure, thereby improving practicality.

[0040] See also Figure 5-Figure 7 A cover 603 is provided on the top of the sleeve 61, and the cover 603 is in a normally closed state.

[0041] See also Figure 6 and Figure 8-Figure 9The regulating device 601 includes an annular plate 6011, an air chamber 6012 is provided at a position near the center of the top of the annular plate 6011, the air chamber 6012 is communicated with the inner cavity of the telescopic tube 69, a limiting ring 6013 is provided at a position near the top of the inner wall of the air chamber 6012, a sealing block 6014 is provided at the bottom of the air chamber 6012, a travel seat 6015 is provided inwardly of the air chamber 6012, the travel seat 6015 is provided with a circular hole and cooperates with the sealing block 6014, an annular groove 6016 is provided at the top and bottom of the annular plate 6011, and the air chamber 6 An upper bypass pipe 6017 and a lower bypass pipe 6018 are respectively provided at the bottom and the top of the inner wall of 012. The upper bypass pipe 6017 is connected with the annular groove 6016 below, and the lower bypass pipe 6018 is connected with the annular groove 6016 above. The pressure inside the air chamber 6012 increases, and the airflow is discharged from the annular groove 6016 below through the upper bypass pipe 6017. The pressure inside the air chamber 6012 decreases, and the travel seat 6015 moves upward and blocks the upper bypass pipe 6017. At this time, the airflow is discharged from the annular groove 6016 above through the lower bypass pipe 6018.

[0042] See also Figure 8-Figure 9 , the stroke seat 6015 blocks the lower bypass pipe 6018 in the initial state.

[0043] When the dust filter bag 5 is broken, if the rupture position of the dust filter bag 5 is located below the adjusting device 601, and the dust filter bag 5 below the adjusting device 601 does not participate in the dust removal operation, the rupture on the surface of the dust filter bag 5 has no effect on the dust removal effect. When the adjusting device 601 moves to the rupture, the contact sensing ring 602 is out of contact with the dust filter bag 5. At this time, the output end of the contact sensing ring 602 is connected to the input end of the air pump 65 through a signal connection. The air pump 65 pressurizes the interior of the sleeve 61. This effect acts on the interior of the air chamber 6012 through the telescopic tube 69 and acts on the bottom of the adjusting device 601 through the upper bypass pipe 6017, thereby generating a force on the bottom surface of the adjusting device 601, thereby preventing the adjusting device 601 from continuing to move downward. At the same time, the air pump 65 continuously increases the pressure strength on the inside of the sleeve 61. , until the adjusting device 601 moves upward, until the adjusting device 601 moves to above the breach in the inner wall of the dust filter bag 5, so that the breach in the inner wall of the dust filter bag 5 is always located below the adjusting device 601, thereby eliminating the influence of the breach on the surface of the dust filter bag 5 on the dust removal effect of the device; if the breach in the dust filter bag 5 is located above the adjusting device 601, the pressure loss effect caused by the breach difference causes the pressure at the top of the adjusting device 601 to decrease, and the pressure in the inner cavity of the sleeve 61 drives the adjusting device 601 and the telescopic tube 69 to reset, so that the adjusting device 601 moves to the breach. At this time, the contact induction ring 602 is out of contact with the dust filter bag 5. Through the same principle, the adjusting device 601 is moved to above the breach in the inner wall of the dust filter bag 5, thereby eliminating the influence of the breach on the surface of the dust filter bag 5 on the dust removal effect of the device, thereby improving the reliability of the device.

[0044] See also Figure 5-Figure 6 The diameter of the adjusting device 601 is the same as the radius of the dust filter bag 5 , and the contact induction ring 602 is in contact with the inner wall of the dust filter bag 5 .

[0045] See also Figure 3 and Figure 5 There is a 1 cm gap between the axis of the sleeve 61 and the axis of the dust filter bag 5 , and the adjustment device 601 is in an eccentric state inside the dust filter bag 5 .

[0046] See also Figure 6 and Fig.10 The driving device 7 includes a mounting frame 71, a power machine 72 is arranged on the top of the mounting frame 71, and a driving gear 73 is fixedly installed on one end of the output shaft of the power machine 72. When the power machine 72 drives the driving gear 73 to rotate, the transmission effect of the transmission gear 67 will drive the sleeve 61 to rotate.

[0047] See also Figure 6 and Fig.10The power machine 72 corresponds to the adjusting device 6 one by one, and the driving gear 73 is meshed with the transmission gear 67.

[0048] When the regulating device 601 moves to the bottom of the dust filter bag 5 and cannot be displaced, the regulating device 601 loses its regulating effect on the air pressure inside and outside the dust filter bag 5. At this time, the power machine 72 runs and drives the sleeve 61 to rotate through the transmission effect of the driving gear 73 and the transmission gear 67. Since there is a 1 cm gap between the axis of the sleeve 61 and the axis of the dust filter bag 5, the regulating device 601 is in an eccentric state inside the dust filter bag 5, so that the sleeve 61 drives the regulating device 601 to rotate, which makes the dust filter bag 5 vibrate, thereby shaking the dust filter bag 5. Part of the dust attached to the surface breaks away and falls on the top of the regulating device 601, and at the same time, the wind shield 9 rotates downward, and the device enters the cleaning mode. At this time, the airflow generated by the fan enters the cavity above the upper partition plate 2 through the air inlet duct 8, and the cover 603 is in an open state. Since the airflow passes through the top of the sleeve 61 at a high speed, negative pressure is generated inside the sleeve 61, and acts on the inside of the air chamber 6012 through the telescopic tube 69, driving the travel seat 6015 to move upward and block the upper bypass pipe 6017. At the same time, the lower bypass pipe 6018 is in an open state. The dust on the top of the regulating device 601 is sucked into the interior of the air chamber 6012 through the lower bypass pipe 6018, and enters the telescopic tube 69 through the bottom opening of the stroke seat 6015, and is finally sucked out through the top opening of the sleeve 61, and follows the airflow through the dust collecting duct 10 into the interior of the dust collecting box. At the same time, under the action of the negative pressure inside the sleeve 61, the telescopic tube 69 will also move upward at the same time, thereby achieving the effect of automatic resetting, and in the process of resetting, the top outer edge of the regulating device 601 will scrape off the remaining dust on the inner wall of the dust filter bag 5, and the scraped dust It will also fall on the top of the adjusting device 601 and eventually be sent to the dust collecting box. When the telescopic tube 69 is reset inside the sleeve 61, the cover 603 is closed, and the wind shield 9 is rotated downward, and the device enters the dust removal mode. Through the above operation, the device can automatically clean the dust attached to the inner wall of the dust filter bag 5, thereby avoiding the problem that the dust filter bag 5 is attached with too much dust after a long period of dust removal and blocks the airflow, resulting in reduced dust removal efficiency. The practicability of the device is improved, and no manual participation is required in the entire dust removal process, thereby improving the automation of the device.

[0049] The method of use of the present invention is as follows: When the device is in the dust removal mode, the wind shield 9 rotates upward. At this time, the fan sends the outside air into the cavity between the lower partition plate 3 and the plug plate 4 through the air inlet duct 8. Since the outer shell 1, the lower partition plate 3 and the plug plate 4 constitute a closed cavity, the air pressure inside the cavity increases, and the gas can only pass through the dust filter bag 5 and be filtered. Since the adjusting device 601 is located inside the dust filter bag 5, the dust filter bag 5 is divided into two parts, upper and lower. At this time, the gas can only be filtered through the dust filter bag 5 located above the adjusting device 601, while the dust filter bag 5 located below the adjusting device 601 cannot participate in the filtering operation. When a large amount of dust left by the filtration is attached to the inner surface of the dust filter bag 5 above the adjusting device 601, the resistance encountered by the airflow through the dust filter bag 5 is increased. , the air pressure inside the closed cavity formed by the shell 1, the lower partition plate 3 and the plug plate 4 is further increased, and this effect acts on the top of the adjusting device 601, thereby driving the adjusting device 601 to move downward. When the adjusting device 601 moves downward, the telescopic tube 69 moves synchronously, thereby reducing the pressure inside the sleeve 61 and achieving balance with the air pressure on the top of the adjusting device 601. At this time, the adjusting device 601 stops moving. After the adjusting device 601 stops moving, a new dust filter bag 5 participates in the filtration. At this time, the resistance encountered by the airflow through the dust filter bag 5 is reduced, thereby maintaining the air pressure inside and outside the dust filter bag 5 stable, ensuring the filtering effect of the dust filter bag 5 while ensuring the passage speed and efficiency of the gas, and maintaining the pressure on the dust filter bag 5 within the most suitable range.

[0050] When the adjusting device 601 moves to the bottom of the dust filter bag 5 and cannot be displaced, the adjusting device 601 loses the regulating effect on the air pressure inside and outside the dust filter bag 5. At this time, the power machine 72 runs and drives the sleeve 61 to rotate through the transmission effect of the driving gear 73 and the transmission gear 67. Since there is a 1 cm gap between the axis of the sleeve 61 and the axis of the dust filter bag 5, the adjusting device 601 is in an eccentric state inside the dust filter bag 5, so that the sleeve 61 drives the adjusting device 601 to rotate, which makes the dust filter bag 5 vibrate during the process of the sleeve 61 driving the adjusting device 601 to rotate, thereby separating part of the dust attached to the surface of the dust filter bag 5 and falling on the top of the adjusting device 601, and at the same time, the wind shield 9 rotates to the bottom, and the device enters the cleaning mode. At this time, the airflow generated by the fan enters the cavity above the upper partition plate 2 through the air inlet duct 8, and the cover 603 is in an open state. Since the airflow passes through the top of the sleeve 61 at a high speed, negative pressure is generated inside the sleeve 61, and acts on the inside of the air chamber 6012 through the telescopic tube 69, driving the travel seat 6 015 moves upward and blocks the upper bypass pipe 6017, while the lower bypass pipe 6018 is in an open state. At this time, the dust falling on the top of the regulating device 601 is sucked into the interior of the air chamber 6012 through the lower bypass pipe 6018, and enters the telescopic pipe 69 through the bottom opening of the travel seat 6015, and finally is sucked out through the top opening of the sleeve 61, and follows the air flow through the dust collecting duct 10 into the interior of the dust collecting box. At the same time, under the action of the negative pressure inside the sleeve 61, the telescopic pipe 69 will also move upward at the same time, from The effect of automatic resetting is achieved, and during the resetting process, the top outer edge of the adjusting device 601 will scrape off the remaining dust on the inner wall of the dust filter bag 5, and the scraped dust will also fall on the top of the adjusting device 601, and finally be sent to the dust collecting box. When the telescopic tube 69 completes the resetting inside the sleeve 61, the cover 603 is closed, and the wind shield 9 rotates downward here, and the device enters the dust removal mode. Through the above operation, the device achieves the effect of automatically cleaning the dust attached to the inner wall of the dust filter bag 5.

[0051] When the dust filter bag 5 is broken, if the rupture position of the dust filter bag 5 is located below the adjusting device 601, and the dust filter bag 5 below the adjusting device 601 does not participate in the dust removal operation, the rupture on the surface of the dust filter bag 5 has no effect on the dust removal effect. When the adjusting device 601 moves to the rupture, the contact sensing ring 602 is disconnected from the dust filter bag 5. At this time, the output end of the contact sensing ring 602 is connected to the input end of the air pump 65 through a signal connection. The air pump 65 pressurizes the interior of the sleeve 61. This effect acts on the interior of the air chamber 6012 through the telescopic tube 69 and acts on the bottom of the adjusting device 601 through the upper bypass pipe 6017, thereby generating a force on the bottom surface of the adjusting device 601, thereby preventing the adjusting device 601 from continuing to move downward. At the same time, the air pump 65 continuously increases the pressure on the inside of the sleeve 61. The pressure strength of the part is increased until the adjusting device 601 moves upward, until the adjusting device 601 moves to above the breach in the inner wall of the dust filter bag 5, so that the breach in the inner wall of the dust filter bag 5 is always located below the adjusting device 601, thereby eliminating the influence of the breach on the surface of the dust filter bag 5 on the dust removal effect of the device; if the breach of the dust filter bag 5 is located above the adjusting device 601, the pressure loss effect caused by the breach leads to a decrease in the pressure at the top of the adjusting device 601, and the pressure in the inner cavity of the sleeve 61 drives the adjusting device 601 and the telescopic tube 69 to reset, so that the adjusting device 601 moves to the breach. At this time, the contact induction ring 602 is out of contact with the dust filter bag 5. Through the same principle, the adjusting device 601 is moved to above the breach in the inner wall of the dust filter bag 5, thereby eliminating the influence of the breach on the surface of the dust filter bag 5 on the dust removal effect of the device.

Claims

1. A dust removal device for mining, characterized in that: The invention comprises a shell (1), an upper partition plate (2) and a lower partition plate (3) are arranged on the inner wall of the shell (1) near the top, a plug plate (4) is clamped on the inner wall of the shell (1) below the lower partition plate (3), a dust filter bag (5) is arranged on the top of the plug plate (4), an adjustment device (6) is provided on the top movable sleeve of the upper partition plate (2), the adjustment device (6) extends into the interior of the dust filter bag (5), and a driving device (7) is arranged on the inner wall of the shell (1) between the upper partition plate (2) and the lower partition plate (3), the driving device (7) cooperates with the adjustment device (6).

2. A dust removal device for mining according to claim 1, characterized in that: The dust filter bags (5) and the adjustment devices (6) are distributed in an array and correspond one to one. An air intake duct (8) is fixedly installed on the left side of the outer surface of the shell (1). The inner movable sleeve of the air intake duct (8) is provided with a windshield (9). A dust collection duct (10) is provided on the right side of the outer surface of the shell (1) near the top. The dust collection duct (10) is connected to the cavity inside the shell (1) above the upper partition plate (2). An exhaust duct (11) is provided on the right side of the outer surface of the shell (1) near the bottom. A limit rope (12) is provided at the bottom of the inner cavity of the shell (1). The limit rope (12) is connected to the bottom of the dust filter bag (5). The air inlet duct (8) adopts a split-opening design, wherein the top opening is connected to a cavity located above the upper partition plate (2) inside the housing (1), and the bottom opening is connected to a cavity located between the lower partition plate (3) and the plug plate (4) inside the housing (1). The input port of the air inlet duct (8) is connected to a fan, and the output end of the dust collecting duct (10) is connected to a dust collecting box.

3. A dust removal device for mining according to claim 2, characterized in that: The regulating device (6) comprises a sleeve (61), an upper sleeve (62) is movably sleeved on a position near the top of the outer surface of the sleeve (61), an annular groove (63) is provided at the bottom of the inner wall of the upper sleeve (62), a connecting pipe port (64) is provided on the outer surface of the upper sleeve (62), the connecting pipe port (64) is connected to an air pump (65) via a pipeline, and a side hole (66) is provided on the outer surface of the sleeve (61) near the top; The connecting pipe port (64) is connected to the inner cavity of the sleeve (61) through the annular groove (63) and the side hole (66); A transmission gear (67) is fixedly sleeved on a position below the upper shaft sleeve (62) on the outer surface of the sleeve (61), and a lower shaft sleeve (68) is sleeved on a position close to the middle of the outer surface of the sleeve (61); The upper shaft sleeve (62) is movably sleeved with the upper partition plate (2), the transmission gear (67) cooperates with the driving device (7), and the lower shaft sleeve (68) is movably sleeved with the lower partition plate (3).

4. A dust removal device for mining according to claim 3, characterized in that: A telescopic tube (69) is movably mounted in the inner cavity of the sleeve (61); an adjusting device (601) is fixedly mounted at the bottom of the telescopic tube (69); the adjusting device (601) is located inside the dust filter bag (5); a contact induction ring (602) is disposed on the outer ring of the adjusting device (601); an output end of the contact induction ring (602) is connected to an input end of an air pump (65) by means of a signal connection; and a sealing cover (603) is disposed on the top of the sleeve (61).

5. A dust removal device for mining according to claim 4, characterized in that: The regulating device (601) comprises an annular plate (6011), an air chamber (6012) is provided at a position near the center of the top of the annular plate (6011), the air chamber (6012) is communicated with the inner cavity of the telescopic tube (69), a limit ring (6013) is provided at a position near the top of the inner wall of the air chamber (6012), a sealing block (6014) is provided at the bottom of the air chamber (6012), and a travel seat (6015) is provided inwardly of the air chamber (6012). The travel seat (6015) is provided with a circular hole and cooperates with the sealing block (6014); the top and bottom of the annular plate (6011) are both provided with annular grooves (6016); the bottom and top of the inner wall of the air chamber (6012) are respectively provided with an upper bypass pipe (6017) and a lower bypass pipe (6018); the upper bypass pipe (6017) is connected to the lower annular groove (6016), and the lower bypass pipe (6018) is connected to the upper annular groove (6016); The travel seat (6015) blocks the lower bypass pipe (6018) in the initial state.

6. A dust removal device for mining according to claim 5, characterized in that: The diameter of the adjustment device (601) is the same as the radius of the dust filter bag (5), and the contact induction ring (602) is in contact with the inner wall of the dust filter bag (5).

7. A dust removal device for mining according to claim 6, characterized in that: There is a distance of 1 cm between the axis of the sleeve (61) and the axis of the dust filter bag (5), and the adjustment device (601) is in an eccentric state inside the dust filter bag (5).

8. A dust removal device for mining according to claim 7, characterized in that: The driving device (7) comprises a mounting frame (71), a power machine (72) is arranged on the top of the mounting frame (71), and a driving gear (73) is fixedly mounted on one end of the output shaft of the power machine (72); The power machine (72) corresponds to the regulating device (6) in a one-to-one manner, and the driving gear (73) is meshed with the transmission gear (67).

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