An explosion-proof and explosion-venting dry dust removal system

Abstract

The present invention relates to the field of dust removal technology, and in particular to an explosion-proof and explosion-proof dry dust removal system, comprising a dust guide pipe, a first cleaning device, a one-way flameproof device, a dust removal device, a second cleaning device, a fan, a monitoring alarm device and a control module. The present invention obtains the pressure in the dust guide pipe through the monitoring alarm device and feeds it back to the control module. When the pressure in the dust guide pipe is greater than P, the monitoring alarm device is controlled to sound an alarm, the fan is turned off, and the one-way flameproof device is controlled to be turned off, so that the operator can detect the situation in the dust guide pipe. After the pressure in the dust guide pipe returns to a normal value and the operator confirms that the appearance of the dust guide pipe is not damaged, the first cleaning device is controlled to clean the inside of the dust guide pipe so that the dust clumps accumulated in the dust guide pipe are separated from the inner wall of the dust guide pipe, and the dust clumps are decomposed into dust particles. At the same time, the one-way flameproof device is opened, and the fan is turned on to transport the dust particles to the dust removal device, and the dust removal system continues to perform dust removal work.

Description

Technical Field

[0001] The invention relates to the technical field of dust removal, and in particular to an explosion-proof and explosion-venting dry dust removal system. Background Art

[0002] The main function of the dust removal system is to filter and remove pollutants such as dust and smoke from industrial emissions. If these pollutants are directly discharged into the atmosphere without treatment, they will have a serious impact on the environment and human health. Through the treatment of the dust removal system, these pollutants can be separated from the emission source to achieve the purpose of reducing environmental pollution.

[0003] However, after a long period of use, a certain amount of dust will accumulate on the inner wall of the dust pipe of the dust removal system to form dust clumps. In addition, the dust clumps reduce the effective cross-sectional area of ​​the dust pipe, increasing the resistance of the dust-containing gas passing through the dust pipe, leading to an increase in the pressure inside the dust pipe, so it is necessary to improve it. Summary of the invention

[0004] The purpose of the present invention is to provide an explosion-proof and explosion-proof dry dust removal system in view of the deficiencies of the prior art. The pressure in the dust pipe is obtained through a monitoring alarm device and fed back to a control module. When the pressure in the dust pipe is greater than P, the monitoring alarm device is controlled to sound an alarm, the fan is turned off, and the one-way flameproof device is controlled to be closed, so that the operator can detect the situation in the dust pipe. After the pressure in the dust pipe returns to a normal value and the operator confirms that the appearance of the dust pipe is not damaged, the first cleaning device is controlled to clean the inside of the dust pipe so that the dust clumps accumulated in the dust pipe are separated from the inner wall of the dust pipe, and the dust clumps are decomposed into dust particles. At the same time, the one-way flameproof device is opened, and the fan is turned on to transport the dust particles to the dust removal device, and the dust removal system continues to perform dust removal work.

[0005] To achieve the above-mentioned purpose, an explosion-proof and explosion-proof dry dust removal system of the present invention comprises a dust guide pipe, a first cleaning device, a one-way explosion-proof device, a dust removal device, a second cleaning device, a fan, a monitoring and alarm device and a control module.

[0006] The dust guide pipe is used to transport the dust-containing gas to the dust removal device;

[0007] The first cleaning device is disposed in the dust guide pipe and is used to clean the dust guide pipe so that dust clumps accumulated on the inner wall of the dust guide pipe are separated from the inner wall of the dust guide pipe;

[0008] The one-way explosion-proof device is connected between the dust guide pipe and the dust removal device, and is used to control the connection or disconnection between the dust guide pipe and the dust removal device;

[0009] The dust removal device is used to remove dust from the dust-containing gas and discharge clean gas;

[0010] The second cleaning device is disposed in the dust removal device and is used to clean the dust removal device;

[0011] The fan is connected to the dust removal device and is used to evacuate the dust removal device and provide negative pressure for the dust removal device, so that the dust-containing gas is transported to the dust removal device through the dust guide pipe and the clean gas is discharged from the dust removal device;

[0012] The monitoring alarm device is used to monitor the internal wind speed of the dust guide pipe and the dust removal device and feed back the monitoring data to the control module;

[0013] The control module is electrically connected to the first cleaning device, the one-way explosion-proof device, the dust removal device, the second cleaning device, the fan and the monitoring alarm device respectively;

[0014] Working method of explosion-proof and explosion-proof dry dust removal system:

[0015] A. The fan is connected to the dust removal device and is used to evacuate the dust removal device and provide negative pressure for the dust removal device, so that the dust-containing gas is transported to the dust removal device through the dust guide pipe and the clean gas is discharged from the dust removal device, so that the dust removal system performs dust removal work;

[0016] B. The pressure in the dust pipe is obtained through the monitoring alarm device and fed back to the control module. When the pressure in the dust pipe is greater than P, the monitoring alarm device is controlled to sound an alarm; the control module turns off the fan and controls the one-way explosion-proof device to close;

[0017] C. After the pressure in the dust duct returns to normal and the operator confirms that the appearance of the dust duct is not damaged, the first cleaning device is controlled to clean the inside of the dust duct so that the dust clumps accumulated in the dust duct are separated from the inner wall of the dust duct and the dust clumps are decomposed into dust particles; at the same time, the one-way explosion-proof device is opened, and the fan is turned on to transport the dust particles to the dust removal device, and the dust removal system continues to perform dust removal work;

[0018] D. The wind speed in the dust removal device is obtained through the monitoring alarm device and fed back to the control module. When the wind speed in the dust removal device is less than S, the control module controls the one-way explosion-proof device to close, turns off the fan, and controls the second cleaning device to clean the inside of the dust removal device;

[0019] E. After the second cleaning device has finished cleaning the inside of the dust removal device, the control module controls the one-way explosion-proof device to open, turns on the fan, and continues to monitor the wind speed in the dust removal device through the monitoring alarm device.

[0020] Preferably, the first cleaning device comprises a cleaning rod, a cleaning nozzle, a cleaning brush and a first driver,

[0021] The dust guide pipe is provided with an extension pipe connected to the dust guide pipe;

[0022] The cleaning rod is rotatably disposed on the extension tube and is rotatably telescopic between the extension tube and the dust guide tube;

[0023] The cleaning nozzle and the cleaning brush are both arranged at the end of the cleaning rod, and the cleaning nozzle and the cleaning brush are both located in the extension tube; the cleaning nozzle is connected to an external compressor and blows air into the dust guide tube;

[0024] The first driver is fixed on the outside of the extension tube and drives the cleaning rod to rotate and extend between the extension tube and the dust guide tube.

[0025] Preferably, the dust removal device comprises a dust removal box, a support member, a filter member, a separation hopper and a collection box.

[0026] The dust removal box is provided with an exhaust chamber and a plurality of dust removal chambers, and the plurality of dust removal chambers are respectively connected with the exhaust chamber through connecting channels;

[0027] The support member is hollow inside and one end of the support member is fixed in the connecting passage between the exhaust chamber and the dust removal chamber.

[0028] The filter element is fixed to the surface of the support element, and the number of the support element and the filter element is multiple, and the multiple support elements and the multiple filter elements are respectively arranged in each of the dust removal chambers in a one-to-one correspondence.

[0029] An input pipe is provided on one side of the separation bucket, and the input pipe is connected to the delivery outlet of the one-way explosion-proof device. The upper part of the separation bucket is respectively connected to a plurality of dust removal chambers, and a control valve is provided between the dust removal chambers and the separation bucket, and the connection or disconnection between the dust removal chambers and the separation bucket is controlled by the control valve;

[0030] The lower part of the separation bucket is connected to the collection box, and the collection box is used to collect dust in the dust-containing gas.

[0031] Preferably, a partition bar is arranged inside the separation bucket, and a plurality of partition bars are staggeredly arranged inside the separation bucket;

[0032] A fixing piece is disposed at the end of the support piece, and the filter element is fixed to the support piece via the fixing piece;

[0033] The filter element is provided with a plurality of conical filter parts, and the plurality of conical filter parts all extend into the interior of the support element.

[0034] Preferably, the second cleaning device comprises a pulse blowing mechanism, a sealing cover, a second driver, a rotating beating frame and a third driver,

[0035] The pulse blowing mechanism is arranged in the exhaust chamber and extends into the connecting channel;

[0036] The sealing cover is slidably sleeved on the side where the pulse blowing mechanism extends into the connecting channel:

[0037] The second driver drives the sealing cover to close or open the connecting channel;

[0038] The rotating beating frame is rotatably arranged inside the supporting member;

[0039] The third driver drives the rotating beating frame to rotate.

[0040] Preferably, the dust removal box is further provided with a pre-powder spraying device, which comprises a housing, a powder storage chamber, a rotating powder conveying disc, a high-pressure air blowing head and a powder spraying nozzle;

[0041] The shell is fixed to the dust removal box, and the shell is provided with a powder inlet and a powder outlet;

[0042] The powder storage chamber is used to store pre-spray powder, and the discharge port of the powder storage chamber is connected to the powder inlet of the shell;

[0043] The rotary powder conveying disc is rotatably arranged in the shell, and the rotary powder conveying disc is provided with a plurality of powder conveying grids, and the rotary powder conveying disc conveys the pre-spray powder between the powder inlet and the powder outlet of the shell through the powder conveying grids;

[0044] The high-pressure air blowing head is arranged in the powder feeding grid and is used to blow up the pre-spray powder inside the powder feeding grid;

[0045] The powder spray nozzle is connected between the powder outlet of the housing and the dust removal box;

[0046] Working method of pre-powder spraying device:

[0047] F1. The quantitative pre-spray powder stored in the powder storage chamber is transported to the powder delivery grid through the discharge port of the powder storage chamber and the powder inlet of the shell;

[0048] F2, the rotating powder conveying disc rotates, and the powder conveying grid rotates along with the rotating powder conveying disc, and a certain amount of pre-spray powder is conveyed from the powder inlet of the shell to the powder outlet of the shell along with the rotation of the powder conveying grid;

[0049] F3. When the powder feeding grid rotates between the powder inlet and the powder outlet of the shell, the high-pressure air blowing head blows the pre-sprayed powder inside the powder feeding grid to evenly lift the pre-sprayed powder inside the powder feeding grid;

[0050] F4. After the powder feeding grid rotates to the powder outlet of the shell, the powder spray nozzle connects the dust removal box and the powder outlet of the shell, and the pre-spray powder raised in the powder feeding grid is evenly blown into the dust removal box through the powder spray nozzle, mixed with the oily smoke and adsorbed on the surface of the filter element.

[0051] Preferably, the dust guide pipe comprises a straight pipe section;

[0052] A fire extinguishing sprinkler device is arranged in the straight pipe section, and the fire extinguishing sprinkler device includes a telescopic sprinkler head and a fourth driver. A sprinkler hole is arranged throughout the straight pipe section, and the fourth driver drives the telescopic sprinkler head to extend into or exit the straight pipe section through the sprinkler hole.

[0053] Preferably, the dust guide pipe includes a curved pipe section;

[0054] A vibration device is arranged in the curved pipe section, and the vibration device comprises an inclined sealing edge, a vibration sheet, a buffer connection piece, a buffer piece and a vibrator;

[0055] The inclined sealing edge is fixed to the inner wall of the curved pipe section;

[0056] The vibration sheet is arranged in the inclined sealing edge and connected to the inclined sealing edge through the buffer connection piece;

[0057] The buffer member is arranged between the vibration sheet and the inner wall of the curved pipe section;

[0058] The vibrator is fixed to the inner wall of the curved pipe section and drives the vibration sheet to vibrate.

[0059] Preferably, the dust guide pipe is provided with an explosion-proof valve, and the explosion-proof valve is used to control the internal pressure of the dust guide pipe;

[0060] The dust removal device is provided with a pressure relief mechanism, which is connected to the inside of the dust removal device and is used to control the pressure inside the dust removal device.

[0061] Preferably, the explosion-proof valve comprises a valve body, a switch valve and a bursting disc.

[0062] The valve body is connected to the dust guide pipe, and the valve body is respectively provided with a first exhaust port and a second exhaust port, and the switch valve is provided at the first exhaust port and is used to control the opening or closing of the first exhaust port;

[0063] The bursting disc is arranged at the second exhaust port. When the internal pressure of the explosion-proof valve is too large, the internal pressure of the explosion-proof valve breaks the bursting disc, so that the bursting disc is torn to reduce the internal pressure of the explosion-proof valve.

[0064] Beneficial effects of the present invention: The present invention obtains the pressure in the dust pipe through the monitoring alarm device and feeds it back to the control module. When the pressure in the dust pipe is greater than P, the monitoring alarm device is controlled to sound an alarm, the fan is turned off, and the one-way explosion-proof device is controlled to be turned off, so that the operator can detect the situation in the dust pipe. After the pressure in the dust pipe returns to a normal value and the operator confirms that the appearance of the dust pipe is not damaged, the first cleaning device is controlled to clean the inside of the dust pipe so that the dust clumps accumulated in the dust pipe are separated from the inner wall of the dust pipe, and the dust clumps are decomposed into dust particles. At the same time, the one-way explosion-proof device is opened, and the fan is turned on to transport the dust particles to the dust removal device, and the dust removal system continues to perform dust removal work. BRIEF DESCRIPTION OF THE DRAWINGS

[0065] Figure 1 It is a schematic diagram of the structure of the present invention.

[0066] Figure 2 It is a schematic structural diagram of the first cleaning device of the present invention.

[0067] Figure 3 It is a schematic diagram of the structure of the dust removal device of the present invention.

[0068] Figure 4 It is a schematic structural diagram of the dust removal device and the second cleaning device of the present invention.

[0069] Figure 5 It is a schematic structural diagram of the pre-powder spraying device of the present invention.

[0070] Figure 6 It is a schematic structural diagram of the fire extinguishing sprinkler device of the present invention.

[0071] Figure 7 It is a schematic diagram of the structure of the vibration device of the present invention.

[0072] Figure 8 It is a schematic diagram of the explosion-proof valve structure of the present invention.

[0073] Reference numerals include:

[0074] 1. Dust guide pipe; 11. Extension pipe; 12. Straight pipe section; 121. Spray hole; 13. Fire extinguishing sprinkler device; 131. Telescopic nozzle; 132. Fourth driver; 14. Bend pipe section; 15. Vibration device; 151. Angle sealing edge; 152. Vibration plate; 153. Buffer connector; 154. Buffer; 155. Vibrator; 2. First cleaning device; 21. Cleaning rod; 211. Guide slide plate; 22. Cleaning nozzle; 23. Cleaning brush; 24. First driver; 3. One-way explosion-proof device; 4. Dust removal device; 41. Dust removal box; 411. Exhaust chamber; 412. Dust removal choke; 42. Support; 421. Fixing member; 43. Filter Components; 431, cone filter; 44, separation bucket; 441, partition; 45, collection box; 46, pre-powder spraying device; 461, shell; 4611, powder inlet; 4612, powder outlet; 462, powder storage chamber; 4621, outlet; 463, rotary powder delivery disc; 4631, powder delivery grid; 464, high-pressure air blowing head; 465, powder spraying nozzle; 5, second cleaning device; 51, pulse air blowing mechanism; 52, sealing cover; 53, second drive; 54, rotating beating frame; 55, third drive; 6, fan; 7, explosion-proof valve; 71, valve body; 711, first exhaust port; 712, second exhaust port; 72, switch valve; 73, bursting disc. DETAILED DESCRIPTION

[0075] The present invention is described in detail below with reference to the accompanying drawings.

[0076] like Figures 1 to 8 As shown, an explosion-proof and explosion-proof dry dust removal system of the present invention includes a dust guide pipe 1, a first cleaning device 2, a one-way explosion-proof device 3, a dust removal device 4, a second cleaning device 5, a fan 6, a monitoring and alarm device and a control module.

[0077] The dust guide pipe 1 is used to transport the dust-containing gas to the dust removal device 4.

[0078] The first cleaning device 2 is disposed in the dust duct 1 , and is used to clean the dust duct 1 so that dust clumps accumulated on the inner wall of the dust duct 1 are separated from the inner wall of the dust duct 1 .

[0079] The one-way flameproof device 3 is connected between the dust guide pipe 1 and the dust removal device 4, and is used to control the connection or disconnection between the dust guide pipe 1 and the dust removal device 4. The one-way flameproof device 3 is a conventional one-way flameproof valve.

[0080] The dust removal device 4 is used to remove dust from the dust-containing gas and discharge clean gas.

[0081] The second cleaning device 5 is disposed in the dust removing device 4 and is used for cleaning the dust removing device 4 .

[0082] The fan 6 is connected to the dust removal device 4 and is used to evacuate the dust removal device 4 and provide negative pressure for the dust removal device 4 so that the dust-containing gas is transported to the dust removal device 4 through the dust guide pipe 1 and the clean gas is discharged from the dust removal device 4.

[0083] The monitoring alarm device is used to monitor the internal wind speed of the dust guide pipe 1 and the dust removal device 4 and feed back the monitoring data to the control module.

[0084] Wherein, the monitoring and alarm device includes a wind speed monitor and / or a pressure monitor.

[0085] The control module is electrically connected to the first cleaning device 2, the one-way explosion-proof device 3, the dust removal device 4, the second cleaning device 5, the fan 6 and the monitoring and alarm device, respectively, so that the control module can control the first cleaning device 2, the one-way explosion-proof device 3, the dust removal device 4, the second cleaning device 5, the fan 6 and the monitoring and alarm device.

[0086] Working method of explosion-proof and explosion-proof dry dust removal system:

[0087] A. The fan 6 is connected to the dust removal device 4 and is used to evacuate the dust removal device 4 and provide negative pressure for the dust removal device 4 so that the dust-containing gas is transported to the dust removal device 4 through the dust guide pipe 1 and the clean gas is discharged from the dust removal device 4, so that the dust removal system can perform dust removal work.

[0088] B. The pressure in the dust pipe 1 is obtained through the monitoring alarm device and fed back to the control module. When the pressure in the dust pipe 1 is greater than P, the monitoring alarm device is controlled to sound an alarm; the control module turns off the fan 6 and controls the one-way explosion-proof device 3 to close, so that the operator can detect the situation in the dust pipe 1 and prevent accidents. Among them, the value of P is half of the maximum design pressure of the dust pipe 1 to ensure the stable operation of the dust pipe 1 and reduce the occurrence of accidents.

[0089] C. After the pressure in the dust duct 1 returns to normal value and the operator confirms that the appearance of the dust duct 1 is not damaged, the first cleaning device 2 is controlled to clean the inside of the dust duct 1 so that the dust clumps accumulated in the dust duct 1 are separated from the inner wall of the dust duct 1, and the dust clumps are decomposed into dust particles. At the same time, the one-way explosion-proof device 3 is opened, and the fan 6 is turned on to transport the dust particles to the dust removal device 4, and the dust removal system continues to perform dust removal work.

[0090] D. The wind speed in the dust removal device 4 is obtained through the monitoring alarm device and fed back to the control module. When the wind speed in the dust removal device 4 is less than S, the control module controls the one-way explosion-proof device 3 to close, turns off the fan 6, and controls the second cleaning device 5 to clean the inside of the dust removal device 4. The value of S is 20-23m / s. This embodiment takes the value of S as 20m / s as an example to ensure that the pressure inside the dust removal device 4 is maintained within a preset range.

[0091] E. After the second cleaning device 5 finishes cleaning the inside of the dust removal device 4, the control module controls the one-way explosion-proof device 3 to open, turns on the fan 6, and continues to monitor the wind speed in the dust removal device 4 through the monitoring alarm device.

[0092] like Figure 2 As shown, the first cleaning device 2 of this embodiment includes a cleaning rod 21 , a cleaning nozzle 22 , a cleaning brush 23 and a first driver 24 .

[0093] The dust guide pipe 1 is provided with an extension pipe 11 connected to the dust guide pipe 1 . When the first cleaning device 2 is not in use, the first cleaning device 2 is stored in the extension pipe 11 to reduce the impact of the first cleaning device 2 on the dust guide pipe 1 conveying dust-containing gas.

[0094] The cleaning rod 21 is rotatably disposed on the extension tube 11 and is rotatably telescopic between the extension tube 11 and the dust guide tube 1. Specifically, the cleaning rod 21 is a screw.

[0095] The cleaning nozzle 22 and the cleaning brush 23 are both disposed at the end of the cleaning rod 21, and the cleaning nozzle 22 and the cleaning brush 23 are both located in the extension tube 11. The cleaning nozzle 22 is connected to an external compressor and blows air into the dust guide tube 1.

[0096] The first driver 24 is fixed to the outside of the extension tube 11 and drives the cleaning rod 21 to rotate and telescope between the extension tube 11 and the dust guide tube 1, wherein the first driver 24 is a conventional reduction motor. The first driver 24 transmits the rotational motion to the nut through a transmission device (such as a gear box, a synchronous pulley or a worm gear) to rotate the nut. The rotation of the nut drives the cleaning rod 21 to rotate and then converts it into a linear motion of the cleaning rod 21, thereby realizing the first driver 24 driving the cleaning rod 21 to rotate and telescope.

[0097] When in use, the cleaning rod 21 is rotated by the first driver 24, the cleaning rod 21 extends into the dust guide tube 1, and the cleaning nozzle 22 and the cleaning brush 23 rotate with the rotation of the cleaning rod 21. The cleaning nozzle 22 blows air into the dust guide tube 1 and the cleaning brush 23 rubs the inside of the dust guide tube 1, thereby cleaning the inside of the dust guide tube 1.

[0098] Specifically, the cleaning rod 21 is a screw made of a flexible material, such as a polymer elastic material screw, which can be a thermoplastic polyurethane elastomer, a styrene block thermoplastic elastomer, a thermoplastic polyester elastomer or a thermoplastic polyolefin elastomer, so that the cleaning rod 21 has a certain flexibility and elasticity and can bend inside the dust guide pipe 1.

[0099] Preferably, the cleaning rod 21 is provided with a guide slide plate 211 , which is slidably connected to the inside of the dust guide tube 1 , and the guide slide plate 211 guides the cleaning rod 21 to move inside the dust guide tube 1 and provides support for the cleaning rod 21 .

[0100] The guide slide plate 211 moves with the cleaning rod 21 extending into the dust guide tube 1 to close the air inlet end of the dust guide tube 1, thereby preventing dust particles decomposed from dust agglomerates from leaking from the air inlet end of the dust guide tube 1.

[0101] like Figure 3 As shown, the dust removal device 4 of this embodiment includes a dust removal box 41, a support member 42, a filter member 43, a separation bucket 44 and a collection box 45.

[0102] The dust removal box 41 is provided with an exhaust chamber 411 and a plurality of dust removal chambers 412, and the plurality of dust removal chambers are connected to the exhaust chamber 411 through connecting passages, respectively.

[0103] The support member 42 is hollow inside and one end of the support member 42 is fixed in the connecting passage between the exhaust chamber 411 and the dust removal chamber. The support member 42 is a supporting steel mesh bracket.

[0104] The filter element 43 is fixed to the surface of the support element 42. The number of the support element 42 and the filter element 43 are both multiple, and the multiple support elements 42 and the multiple filter elements 43 are respectively arranged in each dust removal chamber 412 in a one-to-one correspondence. Among them, the filter element 43 is a filter bag.

[0105] An input pipe is provided on one side of the separation bucket 44, and the input pipe is connected to the delivery end of the one-way explosion-proof device 3. The upper part of the separation bucket 44 is respectively connected to a plurality of dust removal chambers 412. A control valve is provided between the dust removal chambers 412 and the separation bucket 44, and the connection or disconnection between the dust removal chambers 412 and the separation bucket 44 is controlled by the control valve. The control valve is a gate valve or a butterfly valve.

[0106] The lower part of the separation bucket 44 is connected to a collecting box 45, and the collecting box 45 is used to collect dust in the dust-containing gas.

[0107] When in use, the dust-containing gas enters the separation bucket 44 through the dust guide pipe 1 through the input pipe of the separation bucket 44 under the action of negative pressure. Due to the action of gravity, some dust particles in the dust-containing gas are collected in the collection box 45 from the lower part of the separation bucket 44. The dust-containing gas continues to enter each dust removal chamber 412 from the upper part of the separation bucket 44 through the switch valve 72 under the action of negative pressure. The dust particles in the dust-containing gas are filtered by the filter element 43 and adsorbed on the surface of the filter element 43. The clean gas enters the interior of the support element 42 and enters the exhaust chamber 411, so that the dust removal device 4 removes dust from the dust-containing gas and discharges clean gas.

[0108] like Figure 3 and Figure 4 As shown, the separation bucket 44 of this embodiment is provided with partition bars 441 inside, and a plurality of partition bars 441 are staggeredly arranged inside the separation bucket 44, and the partition bars 441 accelerate the separation of dust particles in the dust-containing gas.

[0109] A fixing member 421 is disposed at the end of the support member 42 , and the filter member 43 is fixed to the support member 42 via the fixing member 421 . Specifically, the fixing member 421 is screwed to the support member 42 and presses and fixes the filter member 43 to the support member 42 .

[0110] The filter element 43 is provided with a plurality of conical filter parts 431, and the plurality of conical filter parts 431 are all extended into the interior of the support element 42. The plurality of conical filter parts 431 increase the filtering area of ​​the filter element 43.

[0111] like Figure 4 As shown, the second cleaning device 5 of this embodiment includes a pulse blowing mechanism 51, a sealing cover 52, a second driver 53, a rotating beating frame 54 and a third driver 55.

[0112] The pulse air blowing mechanism 51 is disposed in the exhaust chamber 411 and extends into the connecting channel. The pulse air blowing mechanism 51 is a pulse air blowing nozzle.

[0113] The sealing cover 52 is slidably sleeved on one side of the pulse blowing mechanism 51 extending into the connecting channel.

[0114] The second driver 53 drives the sealing cover 52 to close or open the connecting channel, wherein the second driver 53 is a conventional air cylinder or an electric cylinder.

[0115] The rotating beating frame 54 is rotatably disposed inside the supporting member 42 .

[0116] The third driver 55 drives the rotating beating frame 54 to rotate, wherein the third driver 55 is a motor.

[0117] Working method of the second cleaning device 5:

[0118] D1. The switch valve 72 is closed to disconnect the dust removal 412 from the separation bucket 44.

[0119] D2. The pulse blowing mechanism 51 blows air into the connecting channel, and the second driver 53 drives the sealing cover 52 to close the connecting channel, so that the gas blown into the connecting channel by the pulse blowing mechanism 51 cleans the filter element 43, and blows off the dust particles adsorbed on the surface of the filter element 43, thereby cleaning the filter element 43.

[0120] D3. The third driver 55 drives the rotating beating frame 54 to rotate, and the rotating beating frame 54 rotates to beat the inside of the filter element 43, so that the dust particles on the surface of the filter element 43 are further cleaned, and the dust particles on the surface of the filter element 43 fall into the dust removal 412.

[0121] D4. The third driver 55 stops driving the rotating beating frame 54 to rotate, opens the switch valve 72 to connect the dust removal chamber 412 with the separation bucket 44, and the pulse blowing mechanism 51 blows air into the connecting channel again, so that the dust particles in the dust removal chamber 412 are collected in the collecting box 45 through the lower part of the separation bucket 44, thereby completing the cleaning of the dust removal device 4 by the second cleaning device 5.

[0122] D5. After the dust removal device 4 is cleaned, the second driver 53 drives the sealing cover 52 to open the connecting channel, so that the dust removal device 4 can perform dust removal work.

[0123] like Figure 5 As shown, the dust removal box 41 of this embodiment is also provided with a pre-powder spraying device 46 , which includes a shell 461 , a powder storage chamber 462 , a rotating powder conveying disc 463 , a high-pressure air blowing head 464 and a powder spraying nozzle 465 .

[0124] The shell 461 is fixed to the dust removal box 41 , and is provided with a powder inlet 4611 and a powder outlet 4612 .

[0125] The powder storage chamber 462 is used to store pre-spraying powder, and a discharge port 4621 of the powder storage chamber 462 is connected to a powder inlet 4611 of the housing 461 .

[0126] The rotating powder conveying disc 463 is rotatably disposed in the shell 461 . The rotating powder conveying disc 463 is provided with a plurality of powder conveying grids 4631 . The rotating powder conveying disc 463 conveys pre-spray powder between the powder inlet 4611 and the powder outlet 4612 of the shell 461 through the powder conveying grids 4631 .

[0127] The high-pressure air blowing head 464 is disposed in the powder conveying grid 4631 to blow up the pre-spray powder inside the powder conveying grid 4631 .

[0128] The powder spray nozzle 465 is connected between the powder outlet 4612 of the housing 461 and the dust removal box 41 .

[0129] Working method of the pre-powder spraying device 46:

[0130] F1. The quantitative pre-spray powder stored in the powder storage chamber 462 is transported to the powder delivery grid 4631 through the discharge port 4621 of the powder storage chamber 462 and the powder inlet 4611 of the shell 461 .

[0131] F2. The rotating powder conveying disc 463 rotates, and the powder conveying grid 4631 rotates along with the rotating powder conveying disc 463 . A certain amount of pre-spraying powder is conveyed from the powder inlet 4611 of the shell 461 to the powder outlet 4612 of the shell 461 along with the rotation of the powder conveying grid 4631 .

[0132] F3. When the powder conveying grid 4631 rotates between the powder inlet 4611 and the powder outlet 4612 of the shell 461, the high-pressure air blowing head 464 blows the pre-sprayed powder inside the powder conveying grid 4631 to evenly lift the pre-sprayed powder inside the powder conveying grid 4631.

[0133] F4. After the powder feeding grid 4631 rotates to the powder outlet 4612 of the housing 461, the powder spraying nozzle 465 conducts the dust removal box 41 and the powder outlet 4612 of the housing 461, and the pre-sprayed powder raised in the powder feeding grid 4631 is evenly blown into the dust removal box 41 through the powder spraying nozzle 465 to mix with the oily smoke and be adsorbed on the surface of the filter 43. This prevents the smoke from being directly adsorbed on the surface of the filter 43 and making it inconvenient to clean.

[0134] Wherein, the pre-spraying powder is lime powder or sodium hydroxide powder.

[0135] like Figure 6 As shown, the dust guide pipe 1 of this embodiment includes a straight pipe section 12;

[0136] A fire extinguishing sprinkler device 13 is arranged in the straight pipe section 12, and the fire extinguishing sprinkler device 13 includes a telescopic nozzle 131 and a fourth driver 132. A spray hole 121 is arranged throughout the straight pipe section 12, and the fourth driver 132 drives the telescopic nozzle 131 to extend into or exit the straight pipe section 12 through the spray hole 121.

[0137] In actual use, the fourth driver 132 is a cylinder or an electric cylinder, and the telescopic nozzle 131 is connected to an external water pipe or a cooling material such as compressed carbon dioxide gas. The telescopic nozzle 131 is an electric switch nozzle. The control module is electrically connected to the telescopic nozzle 131 and the fourth driver 132, so that the control module can control the fourth driver 132 and the telescopic nozzle 131.

[0138] The monitoring and alarm device also includes a temperature monitor, which monitors the internal temperature of the dust guide pipe 1 and feeds back the internal temperature value of the dust guide pipe 1 to the control module. The control module compares the internal temperature value of the dust guide pipe 1 with the expected temperature. When the internal temperature of the dust guide pipe 1 is abnormal and exceeds the preset temperature, the monitoring and alarm device control module determines that the temperature is abnormal, and controls the fourth driver 132 to drive the telescopic nozzle 131 to extend into the straight pipe section 12 through the spray hole 121. The dust guide pipe 1 is sprayed with a cooling material through the telescopic nozzle 131 to reduce the internal temperature of the dust guide pipe 1.

[0139] When the internal temperature value of the dust guide pipe 1 is compared with the expected temperature and returns to a normal value, the telescopic nozzle 131 is controlled to stop spraying the extinguishing and cooling material into the dust guide pipe 1, and the fourth driver 132 is controlled to drive the telescopic nozzle 131 to exit the straight pipe section 12 through the spray hole 121.

[0140] like Figure 7As shown, the dust guiding pipe 1 of this embodiment includes a curved pipe section 14.

[0141] A vibration device 15 is disposed in the curved pipe section 14 . The vibration device 15 includes an angled sealing edge 151 , a vibration sheet 152 , a buffer connector 153 , a buffer member 154 and a vibrator 155 .

[0142] The angled sealing edge 151 is fixed to the inner wall of the curved pipe section 14 .

[0143] The vibration sheet 152 is disposed in the inclined sealing edge 151 and connected to the inclined sealing edge 151 through a buffer connector 153. The buffer connector 153 is elastic rubber or waterproof canvas.

[0144] The buffer member 154 is disposed between the vibration plate 152 and the inner wall of the curved pipe section 14. The buffer member 154 is a spring, a spring or an elastic rubber.

[0145] The vibrator 155 is fixed to the inner wall of the curved pipe section 14 and drives the vibration plate 152 to vibrate. The vibration frequency of the vibration plate 152 is between 90 Hz and 200 Hz. The vibration within this range can effectively destroy the adhesion and avoid excessive energy consumption and noise. This embodiment takes the vibration frequency of 130 Hz as an example.

[0146] Specifically, at the bend section 14 of the dust guide pipe 1, the airflow generates centrifugal force when turning, causing the airflow to deviate toward the outer wall of the bend section 14 as a whole. The deposition of dust in the dust guide pipe 1 is mainly affected by factors such as airflow velocity, particle size, pipe shape and wall characteristics. At the bend section 14, due to the reduction of the airflow velocity on the outside, dust particles are more likely to be deposited on the outside of the bend section 14. At the same time, small dust particles are more easily controlled by the airflow due to their small mass and inertia, and therefore are more likely to be deposited on the outside of the bend section 14. Arranging the vibration device 15 on the outside of the bend section 14 can solve the problem of dust particles being deposited on the outside of the bend section 14.

[0147] like Figure 8 As shown, the dust guide pipe 1 of this embodiment is provided with an explosion-proof valve 7, and the explosion-proof valve 7 is used to control the internal pressure of the dust guide pipe 1, so as to prevent the dust guide pipe 1 from being damaged or exploding due to overpressure.

[0148] The dust removal device 4 is provided with a pressure relief mechanism, which is connected to the inside of the dust removal device 4 and is used to control the pressure inside the dust removal device 4. The pressure relief mechanism includes a conventional flameless pressure relief valve and / or an explosion-proof disc.

[0149] The explosion-proof valve 7 of this embodiment includes a valve body 71, a switch valve 72 and a bursting disc 73. The control module is electrically connected to the switch valve 72, so that the control module can control the switch valve 72 to open or close.

[0150] The valve body 71 is connected to the dust guide pipe 1 , and the valve body 71 is respectively provided with a first exhaust port 711 and a second exhaust port 712 . The switch valve 72 is provided at the first exhaust port 711 and is used to control the opening or closing of the first exhaust port 711 .

[0151] In actual use, when the internal pressure of the valve body 71 is higher than the preset pressure, the control module controls the switch valve 72 to open, so that the valve body 71 reduces the internal pressure of the dust guide pipe 1 through the first exhaust port 711. When the valve body 71 is normal, the control module controls the switch valve 72 to close.

[0152] The bursting disc 73 is arranged at the second exhaust port 712. When the internal pressure of the explosion-proof valve 7 is too high, the internal pressure of the dust guide pipe 1 cannot be reduced in time by simply opening the first exhaust port 711. The pressure inside the explosion-proof valve 7 breaks the bursting disc 73, so that the bursting disc 73 is torn to reduce the internal pressure of the explosion-proof valve 7.

[0153] The above contents are only preferred embodiments of the present invention. For ordinary technicians in this field, according to the concept of the present invention, there will be changes in the specific implementation methods and application scopes. The content of this specification should not be understood as limiting the present invention.

Claims

1. An explosion-proof and explosion-venting dry dust removal system, characterized in that: It comprises a dust guide pipe (1), a first cleaning device (2), a one-way explosion-proof device (3), a dust removal device (4), a second cleaning device (5), a fan (6), a monitoring alarm device and a control module. The dust guide pipe (1) is used to transport the dust-containing gas to the dust removal device (4); The first cleaning device (2) is arranged in the dust guide pipe (1) and is used to clean the inside of the dust guide pipe (1) so that dust clumps accumulated on the inner wall of the dust guide pipe (1) are separated from the inner wall of the dust guide pipe (1); The one-way flameproof device (3) is connected between the dust guide pipe (1) and the dust removal device (4) and is used to control the connection or disconnection between the dust guide pipe (1) and the dust removal device (4); The dust removal device (4) is used to remove dust from the dust-containing gas and discharge clean gas; The second cleaning device (5) is arranged in the dust removal device (4) and is used for cleaning the dust removal device (4); The fan (6) is connected to the dust removal device (4) and is used to evacuate the dust removal device (4) and provide negative pressure for the dust removal device (4), so that the dust-containing gas is transported to the dust removal device (4) through the dust guide pipe (1) and the clean gas is discharged from the dust removal device (4); The monitoring alarm device is used to monitor the internal wind speed of the dust guide pipe (1) and the dust removal device (4) and feed back the monitoring data to the control module; The control module is electrically connected to the first cleaning device (2), the one-way explosion-proof device (3), the dust removal device (4), the second cleaning device (5), the fan (6) and the monitoring alarm device respectively; The first cleaning device (2) comprises a cleaning rod (21), a cleaning nozzle (22), a cleaning brush (23) and a first driver (24). The dust guide pipe (1) is provided with an extension pipe (11) connected to the dust guide pipe (1); The cleaning rod (21) is rotatably disposed on the extension tube (11) and is rotatably telescopic between the extension tube (11) and the dust guide tube (1); The cleaning nozzle (22) and the cleaning brush (23) are both arranged at the end of the cleaning rod (21), and the cleaning nozzle (22) and the cleaning brush (23) are both located in the extension tube (11); the cleaning nozzle (22) is connected to an external compressor and blows air into the interior of the dust guide tube (1); The first driver (24) is fixed to the outside of the extension tube (11) and drives the cleaning rod (21) to rotate and extend between the extension tube (11) and the dust guide tube (1); The cleaning rod (21) is a screw rod made of a flexible material. The cleaning rod (21) is provided with a guide slide plate (211). The guide slide plate (211) is slidably connected to the inside of the dust guide tube (1). The guide slide plate (211) guides the cleaning rod (21) to move inside the dust guide tube (1) and provides support for the cleaning rod (21). The guide slide plate (211) moves as the cleaning rod (21) extends into the inside of the dust guide tube (1), thereby closing the air inlet end of the dust guide tube (1).

2. The explosion-proof and explosion-proof dry dust removal system according to claim 1, characterized in that: It also includes the working method of explosion-proof and explosion-proof dry dust removal system: A. The fan (6) is connected to the dust removal device (4) and is used to evacuate the dust removal device (4) and provide negative pressure for the dust removal device (4), so that the dust-containing gas is transported to the dust removal device (4) through the dust guide pipe (1) and the clean gas is discharged from the dust removal device (4), so that the dust removal system performs dust removal work; B. The pressure in the dust guide pipe (1) is obtained through the monitoring alarm device and fed back to the control module. When the pressure in the dust guide pipe (1) is greater than P, the monitoring alarm device is controlled to sound an alarm; the control module turns off the fan (6) and controls the one-way explosion-proof device (3) to turn off; C. After the pressure in the dust guide pipe (1) returns to a normal value and the operator confirms that the appearance of the dust guide pipe (1) is not damaged, the first cleaning device (2) is controlled to clean the inside of the dust guide pipe (1) so that the dust clumps accumulated in the dust guide pipe (1) are separated from the inner wall of the dust guide pipe (1), and the dust clumps are decomposed into dust particles; at the same time, the one-way explosion-proof device (3) is opened, and the fan (6) is turned on to transport the dust particles to the dust removal device (4), and the dust removal system continues to perform dust removal work; D. obtaining the wind speed in the dust removal device (4) through the monitoring alarm device and feeding it back to the control module; when the wind speed in the dust removal device (4) is less than S, the control module controls the one-way flameproof device (3) to close, turns off the fan (6), and controls the second cleaning device (5) to clean the inside of the dust removal device (4); E. After the second cleaning device (5) has finished cleaning the inside of the dust removal device (4), the control module controls the one-way explosion-proof device (3) to open, turns on the fan (6), and continues to monitor the wind speed in the dust removal device (4) through the monitoring alarm device.

3. The explosion-proof and explosion-proof dry dust removal system according to claim 1, characterized in that: The dust removal device (4) comprises a dust removal box (41), a support member (42), a filter member (43), a separation bucket (44) and a collection box (45). The dust removal box (41) is provided with an exhaust chamber (411) and a plurality of dust removal chambers (412); the plurality of dust removal chambers (412) are respectively connected to the exhaust chamber (411) via connecting channels; The support member (42) is hollowed out inside, and one end of the support member (42) is fixed in a connecting passage between the exhaust chamber (411) and the dust removal chamber (412). The filter element (43) is fixed to the surface of the support element (42), the support element (42) and the filter element (43) are both provided in plural numbers, and the plural support elements (42) and the plural filter elements (43) are respectively arranged in each of the dust removal chambers (412) in a one-to-one correspondence. An input pipe is provided on one side of the separation bucket (44), the input pipe is connected to the delivery outlet of the one-way explosion-proof device (3), the upper part of the separation bucket (44) is respectively connected to a plurality of dust removal chambers (412), a control valve is provided between each of the dust removal chambers (412) and the separation bucket (44), and the connection or disconnection between the dust removal chamber (412) and the separation bucket (44) is controlled by the control valve; The lower part of the separation bucket (44) is connected to the collection box (45), and the collection box (45) is used to collect dust in the dust-containing gas.

4. The explosion-proof and explosion-proof dry dust removal system according to claim 3, characterized in that: A partition bar (441) is arranged inside the separation bucket (44), and a plurality of partition bars (441) are staggeredly arranged inside the separation bucket (44); A fixing piece (421) is provided at the end of the support piece (42), and the filter piece (43) is fixed to the support piece (42) via the fixing piece (421); The filter element (43) is provided with a plurality of conical filter portions (431), and the plurality of conical filter portions (431) all extend into the interior of the support element (42).

5. The explosion-proof and explosion-proof dry dust removal system according to claim 3, characterized in that: The second cleaning device (5) comprises a pulse blowing mechanism (51), a sealing cover (52), a second driver (53), a rotating beating frame (54) and a third driver (55). The pulse blowing mechanism (51) is arranged in the exhaust chamber (411) and extends into the connecting channel; The sealing cover (52) is slidably mounted on a side of the pulse blowing mechanism (51) extending into the connecting channel: The second driver (53) drives the sealing cover (52) to close or open the connecting channel; The rotating beating frame (54) is rotatably disposed inside the supporting member (42); The third driver (55) drives the rotating beating frame (54) to rotate.

6. The explosion-proof and explosion-proof dry dust removal system according to claim 3, characterized in that: The dust removal box (41) is further provided with a pre-powder spraying device (46), the pre-powder spraying device (46) comprising a housing (461), a powder storage chamber (462), a rotating powder conveying disc (463), a high-pressure air blowing head (464), and a powder spraying nozzle (465); The shell (461) is fixed to the dust removal box (41), and the shell (461) is provided with a powder inlet (4611) and a powder outlet (4612); The powder storage chamber (462) is used to store pre-spray powder, and the discharge port (4621) of the powder storage chamber (462) is connected to the powder inlet (4611) of the housing (461); The rotating powder conveying disc (463) is rotatably disposed in the shell (461), and the rotating powder conveying disc (463) is provided with a plurality of powder conveying grids (4631). The rotating powder conveying disc (463) conveys pre-sprayed powder between a powder inlet (4611) and a powder outlet (4612) of the shell (461) through the powder conveying grids (4631); The high-pressure air blowing head (464) is arranged in the powder feeding grid (4631) and is used to blow up the pre-spray powder inside the powder feeding grid (4631); The powder spray nozzle (465) is connected between the powder outlet (4612) of the housing (461) and the dust removal box (41); Working method of the pre-powder spraying device (46): F1, the quantitative pre-spray powder stored in the powder storage chamber (462) is transported to the powder delivery grid (4631) through the discharge port (4621) of the powder storage chamber (462) and the powder inlet (4611) of the housing (461); F2, the rotating powder conveying disc (463) rotates, and the powder conveying grid (4631) rotates along with the rotating powder conveying disc (463), and a predetermined amount of pre-spraying powder is conveyed from the powder inlet (4611) of the housing (461) to the powder outlet (4612) of the housing (461) along with the rotation of the powder conveying grid (4631); F3. When the powder delivery grid (4631) rotates between the powder inlet (4611) and the powder outlet (4612) of the housing (461), the high-pressure air blowing head (464) blows the pre-sprayed powder inside the powder delivery grid (4631) so that the pre-sprayed powder inside the powder delivery grid (4631) is evenly lifted; F4. After the powder delivery grid (4631) rotates to the powder outlet (4612) of the housing (461), the powder spraying nozzle (465) is connected to the dust removal box (41) and the powder outlet (4612) of the housing (461), and the pre-spray powder raised in the powder delivery grid (4631) is evenly blown into the dust removal box (41) through the powder spraying nozzle (465), mixed with the oil-containing fume, and adsorbed on the surface of the filter element (43).

7. The explosion-proof and explosion-proof dry dust removal system according to claim 1, characterized in that: The dust guide pipe (1) comprises a straight pipe section (12); A fire extinguishing sprinkler device (13) is arranged in the straight pipe section (12), and the fire extinguishing sprinkler device (13) comprises a telescopic sprinkler head (131) and a fourth driver (132). A sprinkler hole (121) is arranged through the straight pipe section (12), and the fourth driver (132) drives the telescopic sprinkler head (131) to extend into or exit the straight pipe section (12) through the sprinkler hole (121).

8. The explosion-proof and explosion-venting dry dust removal system according to claim 1, characterized in that: The dust guide pipe (1) comprises a curved pipe section (14); A vibration device (15) is provided in the curved pipe section (14), and the vibration device (15) comprises an inclined sealing edge (151), a vibration sheet (152), a buffer connection piece (153), a buffer piece (154), and a vibrator (155); The inclined sealing edge (151) is fixed to the inner wall of the curved pipe section (14); The vibration sheet (152) is arranged inside the angled sealing edge (151) and is connected to the angled sealing edge (151) via the buffer connection piece (153); The buffer member (154) is arranged between the vibration sheet (152) and the inner wall of the curved pipe section (14); The vibrator (155) is fixed to the inner wall of the curved pipe section (14) and drives the vibration sheet (152) to vibrate.

9. The explosion-proof and explosion-proof dry dust removal system according to claim 1, characterized in that: The dust guide pipe (1) is provided with an explosion-proof valve (7), and the explosion-proof valve (7) is used to control the internal pressure of the dust guide pipe (1); The dust removal device (4) is provided with a pressure relief mechanism, which is connected to the inside of the dust removal device (4) and is used to control the pressure inside the dust removal device (4).

10. The explosion-proof and explosion-proof dry dust removal system according to claim 9, characterized in that: The explosion-proof valve (7) comprises a valve body (71), an on-off valve (72) and a bursting disc (73). The valve body (71) is connected to the dust guide pipe (1); the valve body (71) is provided with a first exhaust port (711) and a second exhaust port (712); the switch valve (72) is provided at the first exhaust port (711) and is used to control the opening or closing of the first exhaust port (711); The bursting disc (73) is arranged at the second exhaust port (712), and when the internal pressure of the explosion-proof valve (7) is too high, the internal pressure of the explosion-proof valve (7) breaks the bursting disc (73), so that the bursting disc (73) is torn and the internal pressure of the explosion-proof valve (7) is reduced.

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