CN111437687B - Efficient electrostatic-bag composite dust collector and dust collection method - Google Patents
Efficient electrostatic-bag composite dust collector and dust collection method Download PDFInfo
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- CN111437687B CN111437687B CN202010395369.2A CN202010395369A CN111437687B CN 111437687 B CN111437687 B CN 111437687B CN 202010395369 A CN202010395369 A CN 202010395369A CN 111437687 B CN111437687 B CN 111437687B
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Abstract
The invention discloses a high-efficiency electric bag composite dust collector and a dust collection method, wherein gas containing slag dust is conveyed into a bag dust collection tank by the electric dust collection tank, the divided gas is sequentially conveyed to the edge positions close to a first filter bag and a second filter bag through a first arc-shaped drainage plate and a flow guide fan, the other part of gas directly enters from a through hole and sequentially passes through the first filter bag and the second filter bag, so that the gas entering from the electric dust collection tank is divided, the gas directly passing through the first filter bag is reduced, the accumulation of dust on the surface of the first filter bag is reduced, and the dust filtration efficiency is higher.
Description
Technical Field
The invention relates to the technical field of electrostatic fabric filter, in particular to a high-efficiency electrostatic fabric filter and a dust removal method.
Background
The existing electric-bag composite dust collector is a novel efficient dust collector combining an electric dust collector technology and a cloth bag dust collection technology, large-particle dust in smoke is collected by an electric field firstly, more than 70-80% of dust amount in the smoke can be collected, and then the combined efficient dust collector is combined with a bag to collect residual fine dust, so that the dust collection process is stable, and the discharge concentration is less than or equal to 50mg/Nm 3.
The electric dust removal tank and the bag dust removal tank of the electric bag composite dust remover are communicated, air flow output from the electric dust removal tank is completely conveyed to a front row of filter bags in the bag dust removal tank, the filter bags located in the front row of the bag dust removal tank are large in dust receiving amount, and a large amount of dust easily blocks filter holes of the filter bags, so that the dust removal efficiency is influenced.
Disclosure of Invention
The invention aims to provide a high-efficiency electric-bag composite dust collector and a dust collection method, and aims to solve the technical problems that in the prior art, the air flow output from an electric dust collection tank is completely conveyed to a front row of filter bags in the bag dust collection tank, so that the filter bags in the front row of the bag dust collection tank receive a large amount of dust, and a large amount of dust easily blocks filter holes of the filter bags, thereby affecting the dust collection efficiency.
In order to achieve the above object, in one aspect, the invention provides a high-efficiency electrostatic-bag composite dust collector, which comprises an electric dust collection tank, a bag dust collection tank, a first filter bag, a second filter bag and a drainage device; the bag dust removal tank is fixedly connected with the electric dust removal tank, is communicated with the interior of the electric dust removal tank and is positioned on one side of the electric dust removal tank, the first filter bag is fixedly connected with the bag dust removal tank and is positioned in the bag dust removal tank, and the second filter bag is fixedly connected with the bag dust removal tank and is positioned in the bag dust removal tank and is positioned on one side, far away from the electric dust removal tank, of the first filter bag; the drainage device comprises a first arc-shaped drainage plate, an air feeding cylinder, a second arc-shaped drainage plate and a flow guide assembly, the first arc-shaped drainage plate is fixedly connected with the bag dust collection tank and is positioned in the bag dust collection tank and on one side of the first filter bag close to the electric dust collection tank, the air feeding cylinder is fixedly connected with the bag dust collection tank and is fixedly connected with the first arc-shaped drainage plate and is positioned between the first arc-shaped drainage plate and the bag dust collection tank, and the second arc-shaped drainage plate is fixedly connected with the bag dust collection tank and is abutted against the second filter bag and is positioned on one side of the bag dust collection tank close to the second filter bag; the water conservancy diversion subassembly includes forced draught blower and water conservancy diversion fan, the forced draught blower with electric dust removal jar fixed connection, and with bag dust removal jar fixed connection, and be located electric dust removal jar with between the bag dust removal jar, first arc drainage plate has the through-hole, the through-hole is located first arc drainage plate is close to one side of first filter bag, and the orientation the direction of first filter bag, the water conservancy diversion fan with first arc drainage plate fixed connection, and be located in the through-hole.
The guide fan comprises an installation shell, a support frame and arc-shaped blades, the installation shell is fixedly connected with the first arc-shaped drainage plate and is positioned in the through hole, and the support frame is fixedly connected with the installation shell and is positioned on one side, close to the electric dust removal tank, of the installation shell; one side of the arc-shaped blade is rotatably connected with the mounting shell, the other side of the arc-shaped blade is rotatably connected with the supporting frame, and the arc-shaped blade is positioned between the supporting frame and the mounting shell.
The flow guiding fan further comprises a servo motor, the servo motor is fixedly connected with the support frame, an output shaft is rotatably connected with the arc-shaped blades, and the output shaft is located on one side, close to the arc-shaped blades, of the support frame.
The gas feeding cylinder is provided with a lateral through hole, and the lateral through hole is positioned on one side, close to the first filter bag, of the gas feeding cylinder; the drainage device further comprises a third arc-shaped drainage plate, the third arc-shaped drainage plate is fixedly connected with the air feeding cylinder, is abutted against the first filter bag and is positioned on one side, close to the lateral through hole, of the air feeding cylinder.
The high-efficiency electric bag composite dust collector also comprises an impact hammer and a driving device, wherein the impact hammer is connected with the air feed cylinder in a sliding manner, is abutted against the first filter bag and is positioned between the first filter bag and the second filter bag; the driving device is fixedly connected with the air feeding barrel and fixedly connected with the impact hammer.
The driving device comprises an air cylinder and a telescopic rod, the air cylinder is fixedly connected with the air feeding cylinder and is positioned on one side of the air feeding cylinder, which is close to the first filter bag; one end of the telescopic rod is connected with the cylinder in a sliding mode, the other end of the telescopic rod is fixedly connected with the impact hammer, and the telescopic rod is located between the impact hammer and the cylinder.
The driving device further comprises a cushion pad, the cushion pad is fixedly connected with the impact hammer, is abutted against the first filter bag and is positioned on one side, close to the first filter bag, of the impact hammer.
On the other hand, the invention also provides a high-efficiency electrostatic-bag composite dust removal method, which comprises the following steps:
inputting airflow with dust into the electric output tank;
the air blower conveys the airflow from the electric output tank to the bag dust removal tank;
the first arc-shaped drainage plate drains the airflow with dust entering the bag dust removal tank into the air feed cylinder towards the periphery of the first filter bag;
the guide fan is matched with the first arc-shaped drainage plate to convey airflow into the air feeding cylinder, the airflow which does not enter the air feeding cylinder flows to the surface of the first filter bag for filtration, the impact hammer is driven by the telescopic rod and the air cylinder to impact the first filter bag, so that dust blocked on the surface of the first filter bag leaves the first filter bag, and the dust passes through the first filter bag to reach the second filter bag under the action of the airflow;
the third arc-shaped drainage plate drains part of airflow in the gas cylinder to the surface, close to the outer side edge, of the first filter bag, the airflow with dust passes through the surface, close to the outer side edge, of the first filter bag, and the second arc-shaped drainage plate conveys the airflow transmitted in the gas cylinder to the surface of the second filter bag for filtering;
and outputting the airflow after dust removal.
According to the efficient electric-bag composite dust collector and the dust collection method, the electric dust collection tank transmits gas containing slag dust into the bag dust collection tank, the shunted gas is sequentially transported to the positions close to the edges of the first filter bag and the second filter bag through the first arc-shaped drainage plate and the diversion fan, the other part of gas directly enters from the through hole and sequentially passes through the first filter bag and the second filter bag, so that the gas entering from the electric dust collection tank can be shunted, the gas directly passing through the first filter bag is reduced, the accumulation of dust on the surface of the first filter bag is reduced, and the dust filtration efficiency is higher.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of a connection structure of an electric dust collecting tank and a bag dust collecting tank according to the present invention.
Fig. 2 is a schematic structural view of the guide assembly of the present invention.
Fig. 3 is a schematic structural diagram of a guide fan according to the present invention.
Fig. 4 is a schematic view of the structure of the drainage device of the present invention.
Fig. 5 is a schematic structural view of the driving device of the present invention.
FIG. 6 is a flow chart of the high-efficiency electrostatic-bag composite dust-removing method of the present invention.
In the figure: 1-electric dust removal tank, 2-bag dust removal tank, 3-first filter bag, 4-second filter bag, 5-drainage device, 6-impact hammer, 7-driving device, 8-dust collection hopper, 11-cathode discharge electrode, 12-anode plate, 51-first arc-shaped drainage plate, 52-gas delivery cylinder, 53-second arc-shaped drainage plate, 54-drainage component, 55-third arc-shaped drainage plate, 71-cylinder, 72-telescopic rod, 73-buffer pad, 74-slide block, 75-slide rail, 76-screw, 77-screw driving motor, 100-high-efficiency electric bag composite dust remover, 511-through hole, 521-lateral through hole, 541-blower, 542-drainage fan, 5421-installation shell, 5422-support frame, 5423-arc blade, 5424-servo motor, 5425-first rotary bearing, 5426-second rotary bearing.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In a first example of the present embodiment:
referring to fig. 1 to 4, the present invention provides a high efficiency electrostatic fabric filter 100, which includes an electric dust removing tank 1, a bag dust removing tank 2, a first filter bag 3, a second filter bag 4 and a drainage device 5; the bag dust removal tank 2 is fixedly connected with the electric dust removal tank 1, is communicated with the interior of the electric dust removal tank 1 and is positioned on one side of the electric dust removal tank 1, the first filter bag 3 is fixedly connected with the bag dust removal tank 2 and is positioned in the bag dust removal tank 2, and the second filter bag 4 is fixedly connected with the bag dust removal tank 2 and is positioned in the bag dust removal tank 2 and is positioned on one side, away from the electric dust removal tank 1, of the first filter bag 3; the drainage device 5 comprises a first arc-shaped drainage plate 51, an air feed cylinder 52, a second arc-shaped drainage plate 53 and a flow guide assembly 54, wherein the first arc-shaped drainage plate 51 is fixedly connected with the bag dust removal tank 2, is positioned in the bag dust removal tank 2 and is positioned at one side of the first filter bag 3 close to the electric dust removal tank 1, the air feed cylinder 52 is fixedly connected with the bag dust removal tank 2, is fixedly connected with the first arc-shaped drainage plate 51 and is positioned between the first arc-shaped drainage plate 51 and the bag dust removal tank 2, and the second arc-shaped drainage plate 53 is fixedly connected with the bag dust removal tank 2, is abutted against the second filter bag 4 and is positioned at one side of the bag dust removal tank 2 close to the second filter bag 4; diversion subassembly 54 includes forced draught blower 541 and water conservancy diversion fan 542, forced draught blower 541 with 1 fixed connection of electrostatic precipitator jar, and with 2 fixed connection of bag dust removal jar, and be located electrostatic precipitator jar 1 with between the bag dust removal jar 2, first arc drainage plate 51 has through-hole 511, through-hole 511 is located first arc drainage plate 51 is close to one side of first filter bag 3, and orientation the direction of first filter bag 3, water conservancy diversion fan 542 with first arc drainage plate 51 fixed connection, and be located in the through-hole 511.
Further, the flow guide fan 542 comprises an installation shell 5421, a support frame 5422 and arc-shaped blades 5423, the installation shell 5421 is fixedly connected with the first arc-shaped flow guide plate 51 and is located in the through hole 511, and the support frame 5422 is fixedly connected with the installation shell 5421 and is located on one side of the installation shell 5421 close to the electric dust removal tank 1; one side of the arc-shaped blade 5423 is rotatably connected with the mounting housing 5421, and the other side is rotatably connected with the support frame 5422 and is located between the support frame 5422 and the mounting housing 5421.
Further, the guide fan 542 further includes a servo motor 5424, the servo motor 5424 is fixedly connected to the support frame 5422, an output shaft is rotatably connected to the arc-shaped blade 5423, and the output shaft is located on one side of the support frame 5422 close to the arc-shaped blade 5423.
Further, the gas cylinder 52 has a lateral through hole 521, and the lateral through hole 521 is located on one side of the gas cylinder 52 close to the first filter bag 3; the drainage device 5 further comprises a third arc-shaped drainage plate 55, wherein the third arc-shaped drainage plate 55 is fixedly connected with the gas sending cylinder 52, is abutted against the first filter bag 3 and is positioned on one side, close to the lateral through hole 521, of the gas sending cylinder 52.
In this embodiment, a cathode discharge electrode 11 and an anode plate 12 are installed inside the electric dust removal tank 1, the cathode discharge electrode 11 and the anode plate 12 form an electric field, so that part of dust in the air flow entering the electric dust removal tank 1 is adsorbed by the anode plate 12, part of dust which is not adsorbed by the anode plate 12 is conveyed into the bag dust removal tank 2 under the action of the blower 541, a dust hopper 8 is installed at the bottom of the electric dust removal tank 1 through threads, and after the cathode discharge electrode 11 stops discharging, the dust falls into the dust hopper 8; first arc drainage plate 51 is for the orientation the big slope arc body in the front and back of 1 direction of electrostatic precipitation jar, and the circular cross-section central point of first arc drainage plate 51 puts and has through-hole 511, through-hole 511 link up first filter bag 3 with electrostatic precipitation jar 1, the internal thread of through-hole 511 is installed installation casing 5421, installation casing 5421 is inside hollow ring, and the internal thread of installation casing 5421 is fixed with support frame 5422, support frame 5422 is three-dimensional triangle-shaped support frame 5422, and the bottom and the top of support frame 5422 threaded fixation respectively have first swivel bearing 5425 and second swivel bearing 5426, arc blade 5423's top and bottom respectively with first swivel bearing 5425 and second swivel bearing 5426's outer loop welding, be located the outer loop inside wall of first swivel bearing 5425 at support frame 5422 top has the screw thread, the outer side surface of the output shaft of the servo motor 5424 is engaged with the threaded boss of the first rotating bearing 5425, the servo motor 5424 drives the first rotating bearing 5425 to rotate, and further drives the arc-shaped blade 5423 to rotate, the arc-shaped blade 5423 generates airflow facing to the space between the air feeding cylinder 52 and the bag dust removing tank 2 in the rotating process, and part of the air blown out from the air feeding cylinder 541 and mixed with dust is blown to the space between the air feeding cylinder 52 and the bag dust removing tank 2; the gas sending cylinder 52 is a cylinder with a hollow inner part, the first filter bag 3 is installed in the hollow inner part of the gas sending cylinder 52 through support threads, the front end of the gas sending cylinder 52 is in threaded fixation with the first arc-shaped drainage plate 51, an annular gas channel is formed between the outer side surface of the gas sending cylinder 52 and the bag dust removal tank 2, one side of the gas sending cylinder 52 close to the first filter bag 3 is provided with an annular lateral through hole 521, the lateral through hole 521 surrounds the gas sending cylinder 52 for a circle and penetrates through the gas sending cylinder 52, one side of the third arc-shaped drainage plate 55 is integrally connected with the side wall of the gas sending cylinder 52 at the lateral through hole 521, the other side of the third arc-shaped drainage plate 55 is in threaded fixation with the first filter bag 3, and gas input between the gas sending cylinder 52 and the bag dust removal tank 2 is drained to the surface close to the outer side of the first filter bag 3 through the third arc-shaped drainage plate 55, thereby enabling the air flow to uniformly pass through the first filter bag 3; one side thread tightening of second arc drainage plate 53 is in the inside wall of electrostatic precipitator jar 1 to the crooked orientation of opposite side arc second filter bag 4 will pass through send gas cylinder 52 with gas drainage between the bag dust removal jar 2 is to being close to the surface in the 4 outsides of second filter bag, and then transport the gas of reposition of redundant personnel in proper order to be close to first filter bag 3 with the border position of second filter bag 4, another part gas directly follows the through-hole 511 gets into, passes in proper order to first filter bag 3 with second filter bag 4, so can be to following the gas that electrostatic precipitator jar 1 got into advances the reposition of redundant personnel, and reduces and directly runs through the gas of first filter bag 3, and then reduces the pile up of 3 surface dust of first filter bag to the filtration efficiency to the dust is higher.
In a second example of the present embodiment:
referring to fig. 1 to 5, the present invention provides a high efficiency electrostatic fabric filter 100, which includes an electric dust removing tank 1, a bag dust removing tank 2, a first filter bag 3, a second filter bag 4 and a drainage device 5; the bag dust removal tank 2 is fixedly connected with the electric dust removal tank 1, is communicated with the interior of the electric dust removal tank 1 and is positioned on one side of the electric dust removal tank 1, the first filter bag 3 is fixedly connected with the bag dust removal tank 2 and is positioned in the bag dust removal tank 2, and the second filter bag 4 is fixedly connected with the bag dust removal tank 2 and is positioned in the bag dust removal tank 2 and is positioned on one side, away from the electric dust removal tank 1, of the first filter bag 3; the drainage device 5 comprises a first arc-shaped drainage plate 51, an air feed cylinder 52, a second arc-shaped drainage plate 53 and a flow guide assembly 54, wherein the first arc-shaped drainage plate 51 is fixedly connected with the bag dust removal tank 2, is positioned in the bag dust removal tank 2 and is positioned at one side of the first filter bag 3 close to the electric dust removal tank 1, the air feed cylinder 52 is fixedly connected with the bag dust removal tank 2, is fixedly connected with the first arc-shaped drainage plate 51 and is positioned between the first arc-shaped drainage plate 51 and the bag dust removal tank 2, and the second arc-shaped drainage plate 53 is fixedly connected with the bag dust removal tank 2, is abutted against the second filter bag 4 and is positioned at one side of the bag dust removal tank 2 close to the second filter bag 4; diversion subassembly 54 includes forced draught blower 541 and water conservancy diversion fan 542, forced draught blower 541 with 1 fixed connection of electrostatic precipitator jar, and with 2 fixed connection of bag dust removal jar, and be located electrostatic precipitator jar 1 with between the bag dust removal jar 2, first arc drainage plate 51 has through-hole 511, through-hole 511 is located first arc drainage plate 51 is close to one side of first filter bag 3, and orientation the direction of first filter bag 3, water conservancy diversion fan 542 with first arc drainage plate 51 fixed connection, and be located in the through-hole 511.
Further, the high-efficiency electric-bag composite dust collector 100 further comprises an impact hammer 6 and a driving device 7, wherein the impact hammer 6 is slidably connected with the gas transmission cylinder 52, abuts against the first filter bag 3, and is positioned between the first filter bag 3 and the second filter bag 4; the driving device 7 is fixedly connected with the gas cylinder 52 and fixedly connected with the striking hammer 6.
Further, the driving device 7 comprises an air cylinder 71 and an expansion rod 72, wherein the air cylinder 71 is fixedly connected with the air feeding cylinder 52 and is positioned on one side of the air feeding cylinder 52 close to the first filter bag 3; one end of the telescopic rod 72 is slidably connected with the cylinder 71, and the other end is fixedly connected with the striking hammer 6 and is located between the striking hammer 6 and the cylinder 71.
Further, the driving device 7 further comprises a buffer pad 73, wherein the buffer pad 73 is fixedly connected with the striking hammer 6, abuts against the first filter bag 3, and is located on one side of the striking hammer 6 close to the first filter bag 3.
In this embodiment, the contact surface of the striking hammer 6 and the first filter bag 3 is circular, the cushion pad 73 is bonded on the contact surface, and the cushion pad 73 is made of rubber and has good buffering performance; the telescopic rod 72 is fixed on one side, away from the first filter bag 3, of the impact hammer 6 through threads, the telescopic rod 72 is installed on the air cylinder 71, the air cylinder 71 drives the telescopic rod 72 to stretch and retract, and drives the impact hammer 6 to be in contact with the first filter bag 3, so that dust attached to the surface of the first filter bag 3 falls due to impact, and the dust floats in air flow to be subjected to shunting and secondary filtering; the bottom of the air cylinder 71 is fixed with a sliding block 74 through a thread, the air cylinder 71 is connected with a sliding rail 75 through the sliding block 74, two ends of the sliding rail 75 are fixed on the inner side wall of the gas sending cylinder 52 through threads, the inside of the sliding rail 75 is connected with a screw 76 through a bearing, the screw 76 is rotatably connected with the sliding block 74 and penetrates through the sliding block 74, a screw driving motor 77 is fixed on the end portion of the sliding rail 75 close to the gas sending cylinder 52 through threads, the screw driving motor 77 drives the screw 76 to rotate, and then the sliding block 74 is driven to slide on the sliding rail 75, so that the striking hammer 6 slides on the diameter of the gas sending cylinder 52, the striking hammer 6 can strike the first filter bag 3 from multiple positions, surface blockage of dust on the first filter bag 3 is reduced, and the filtering efficiency is higher.
In a third example of the present embodiment:
referring to fig. 1 to 6, the present invention provides a high efficiency electrostatic fabric filter 100, which includes an electric dust removing tank 1, a bag dust removing tank 2, a first filter bag 3, a second filter bag 4 and a drainage device 5; the bag dust removal tank 2 is fixedly connected with the electric dust removal tank 1, is communicated with the interior of the electric dust removal tank 1 and is positioned on one side of the electric dust removal tank 1, the first filter bag 3 is fixedly connected with the bag dust removal tank 2 and is positioned in the bag dust removal tank 2, and the second filter bag 4 is fixedly connected with the bag dust removal tank 2 and is positioned in the bag dust removal tank 2 and is positioned on one side, away from the electric dust removal tank 1, of the first filter bag 3; the drainage device 5 comprises a first arc-shaped drainage plate 51, an air feed cylinder 52, a second arc-shaped drainage plate 53 and a flow guide assembly 54, wherein the first arc-shaped drainage plate 51 is fixedly connected with the bag dust removal tank 2, is positioned in the bag dust removal tank 2 and is positioned at one side of the first filter bag 3 close to the electric dust removal tank 1, the air feed cylinder 52 is fixedly connected with the bag dust removal tank 2, is fixedly connected with the first arc-shaped drainage plate 51 and is positioned between the first arc-shaped drainage plate 51 and the bag dust removal tank 2, and the second arc-shaped drainage plate 53 is fixedly connected with the bag dust removal tank 2, is abutted against the second filter bag 4 and is positioned at one side of the bag dust removal tank 2 close to the second filter bag 4; diversion subassembly 54 includes forced draught blower 541 and water conservancy diversion fan 542, forced draught blower 541 with 1 fixed connection of electrostatic precipitator jar, and with 2 fixed connection of bag dust removal jar, and be located electrostatic precipitator jar 1 with between the bag dust removal jar 2, first arc drainage plate 51 has through-hole 511, through-hole 511 is located first arc drainage plate 51 is close to one side of first filter bag 3, and orientation the direction of first filter bag 3, water conservancy diversion fan 542 with first arc drainage plate 51 fixed connection, and be located in the through-hole 511.
Further, the flow guide fan 542 comprises an installation shell 5421, a support frame 5422 and arc-shaped blades 5423, the installation shell 5421 is fixedly connected with the first arc-shaped flow guide plate 51 and is located in the through hole 511, and the support frame 5422 is fixedly connected with the installation shell 5421 and is located on one side of the installation shell 5421 close to the electric dust removal tank 1; one side of the arc-shaped blade 5423 is rotatably connected with the mounting housing 5421, and the other side is rotatably connected with the support frame 5422 and is located between the support frame 5422 and the mounting housing 5421.
Further, the guide fan 542 further includes a servo motor 5424, the servo motor 5424 is fixedly connected to the support frame 5422, an output shaft is rotatably connected to the arc-shaped blade 5423, and the output shaft is located on one side of the support frame 5422 close to the arc-shaped blade 5423.
Further, the gas cylinder 52 has a lateral through hole 521, and the lateral through hole 521 is located on one side of the gas cylinder 52 close to the first filter bag 3; the drainage device 5 further comprises a third arc-shaped drainage plate 55, wherein the third arc-shaped drainage plate 55 is fixedly connected with the gas sending cylinder 52, is abutted against the first filter bag 3 and is positioned on one side, close to the lateral through hole 521, of the gas sending cylinder 52.
Further, the high-efficiency electric-bag composite dust collector 100 further comprises an impact hammer 6 and a driving device 7, wherein the impact hammer 6 is slidably connected with the gas transmission cylinder 52, abuts against the first filter bag 3, and is positioned between the first filter bag 3 and the second filter bag 4; the driving device 7 is fixedly connected with the gas cylinder 52 and fixedly connected with the striking hammer 6.
Further, the driving device 7 comprises an air cylinder 71 and an expansion rod 72, wherein the air cylinder 71 is fixedly connected with the air feeding cylinder 52 and is positioned on one side of the air feeding cylinder 52 close to the first filter bag 3; one end of the telescopic rod 72 is slidably connected with the cylinder 71, and the other end is fixedly connected with the striking hammer 6 and is located between the striking hammer 6 and the cylinder 71.
Further, the driving device 7 further comprises a buffer pad 73, wherein the buffer pad 73 is fixedly connected with the striking hammer 6, abuts against the first filter bag 3, and is located on one side of the striking hammer 6 close to the first filter bag 3.
A high-efficiency electrostatic-bag composite dust removal method comprises the following steps:
s801: inputting airflow with dust into the electric output tank;
s802: the blower 541 delivers the air flow from the electrical output tank into the bag house 2;
s803: the first arc-shaped drainage plate 51 drains the airflow with dust entering the bag dust collection tank 2 into the air feed cylinder 52 towards the periphery of the first filter bag 3;
s804: the diversion fan 542 is matched with the first arc-shaped diversion plate 51 to convey the airflow into the air feeding cylinder 52, the airflow which does not enter the air feeding cylinder 52 flows to the surface of the first filter bag 3 for filtration, the impact hammer 6 is driven by the expansion rod 72 and the air cylinder 71 to impact the first filter bag 3, so that the dust blocked on the surface of the first filter bag 3 leaves the first filter bag 3, and the dust passes through the first filter bag 3 to reach the second filter bag 4 under the action of the airflow;
s805: the third arc-shaped flow guide plate 55 guides part of the air flow in the air feed cylinder 52 to the surface of the first filter bag 3 close to the outer side edge, the air flow with dust passes through the surface of the first filter bag 3 close to the outer side edge, and the second arc-shaped flow guide plate 53 conveys the air flow transmitted in the air feed cylinder 52 to the surface of the second filter bag 4 for filtration;
s806: and outputting the airflow after dust removal.
In this embodiment, the electric dust collecting tank 1 performs primary filtration, and conveys the filtered gas to the bag dust collecting tank 2 through the blower 541, the first arc-shaped flow guide plate 51 and the flow guide fan 542 divide the gas to make part of the gas flow into the gas supply cylinder 52 and the bag dust collecting tank 2, and make part of the gas pass through the first filter bag 3, through the gas supply cylinder 52 and the gas between the bag dust collecting tanks 2 is guided to be close to the surface outside the second filter bag 4, and then the divided gas is sequentially transferred to be close to the edge positions of the first filter bag 3 and the second filter bag 4, and the other part of the gas directly enters from the through hole 511, sequentially passes through the first filter bag 3 and the second filter bag 4, so as to enable the gas entering from the electric dust collecting tank 1 to be divided and reduce the gas directly passing through the first filter bag 3, and then the dust accumulation on the surface of the first filter bag 3 is reduced, so that the dust filtering efficiency is higher.
While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (7)
1. A high-efficiency electrostatic fabric filter is characterized by comprising an electric dust removal tank, a fabric dust removal tank, a first filter bag, a second filter bag and a drainage device;
the bag dust removal tank is fixedly connected with the electric dust removal tank, is communicated with the interior of the electric dust removal tank and is positioned on one side of the electric dust removal tank, the first filter bag is fixedly connected with the bag dust removal tank and is positioned in the bag dust removal tank, and the second filter bag is fixedly connected with the bag dust removal tank and is positioned in the bag dust removal tank and is positioned on one side, far away from the electric dust removal tank, of the first filter bag;
a cathode discharge electrode and an anode plate are arranged in the electric dust removal tank, an electric field is formed by the cathode discharge electrode and the anode plate, and a dust collecting hopper is arranged at the bottom of the electric dust removal tank in a threaded manner;
the drainage device comprises a first arc-shaped drainage plate, an air feeding cylinder, a second arc-shaped drainage plate and a flow guide assembly, the first arc-shaped drainage plate is fixedly connected with the bag dust collection tank and is positioned in the bag dust collection tank and on one side of the first filter bag close to the electric dust collection tank, the air feeding cylinder is fixedly connected with the bag dust collection tank and is fixedly connected with the first arc-shaped drainage plate and is positioned between the first arc-shaped drainage plate and the bag dust collection tank, and the second arc-shaped drainage plate is fixedly connected with the bag dust collection tank and is abutted against the second filter bag and is positioned on one side of the bag dust collection tank close to the second filter bag;
the flow guide assembly comprises an air feeder and a flow guide fan, the air feeder is fixedly connected with the electric dust removal tank and fixedly connected with the bag dust removal tank and positioned between the electric dust removal tank and the bag dust removal tank, the first arc-shaped drainage plate is provided with a through hole, the through hole is positioned on one side, close to the first filter bag, of the first arc-shaped drainage plate and faces the direction of the first filter bag, the flow guide fan is fixedly connected with the first arc-shaped drainage plate and is positioned in the through hole, the first arc-shaped drainage plate is an inclined arc-shaped body which faces the electric dust removal tank and is small in front and large in back, the through hole is formed in the center of the circular cross section of the first arc-shaped drainage plate, and the through hole penetrates through the first filter bag and the electric dust removal tank;
the guide fan comprises an installation shell, a support frame and arc-shaped blades, the installation shell is fixedly connected with the first arc-shaped drainage plate and is positioned in the through hole, and the support frame is fixedly connected with the installation shell and is positioned on one side, close to the electric dust removal tank, of the installation shell; one side of each arc-shaped blade is rotatably connected with the mounting shell, the other side of each arc-shaped blade is rotatably connected with the supporting frame and is positioned between the supporting frame and the mounting shell, a first rotating bearing and a second rotating bearing are respectively fixed at the bottom and the top of the supporting frame in a threaded manner, the top and the bottom of each arc-shaped blade are respectively welded with the outer rings of the first rotating bearing and the second rotating bearing, and the inner side wall of the outer ring of the first rotating bearing positioned at the top of the supporting frame is provided with a threaded bulge;
the guide fan further comprises a servo motor, the servo motor is fixedly connected with the support frame, an output shaft is rotatably connected with the arc-shaped blade and is positioned on one side, close to the arc-shaped blade, of the support frame;
the air supply cylinder is provided with a lateral through hole, and the lateral through hole is positioned on one side of the air supply cylinder close to the first filter bag; the drainage device further comprises a third arc-shaped drainage plate, the third arc-shaped drainage plate is fixedly connected with the air feeding cylinder, is abutted against the first filter bag and is positioned on one side, close to the lateral through hole, of the air feeding cylinder.
2. The high efficiency electrostatic fabric filter of claim 1,
the high-efficiency electric bag composite dust collector also comprises an impact hammer and a driving device, wherein the impact hammer is connected with the air feed cylinder in a sliding manner, is abutted against the first filter bag and is positioned between the first filter bag and the second filter bag; the driving device is fixedly connected with the air feeding barrel and fixedly connected with the impact hammer.
3. The high efficiency electrostatic fabric filter of claim 2,
the driving device comprises an air cylinder and a telescopic rod, the air cylinder is fixedly connected with the air feeding cylinder and is positioned on one side of the air feeding cylinder, which is close to the first filter bag; one end of the telescopic rod is connected with the cylinder in a sliding mode, the other end of the telescopic rod is fixedly connected with the impact hammer, and the telescopic rod is located between the impact hammer and the cylinder.
4. The high efficiency electrostatic fabric filter of claim 3,
the driving device further comprises a cushion pad, the cushion pad is fixedly connected with the impact hammer, is abutted against the first filter bag and is positioned on one side, close to the first filter bag, of the impact hammer.
5. A high-efficiency electrostatic fabric filter dust removal method is characterized by comprising the following steps:
inputting airflow with dust into the electric output tank;
the air blower conveys the airflow from the electric output tank to the bag dust removal tank;
the first arc-shaped drainage plate drains the airflow with dust entering the bag dust removal tank into the air feed cylinder towards the periphery of the first filter bag;
the guide fan is matched with the first arc-shaped drainage plate to convey airflow into the air feeding cylinder, and the airflow which does not enter the air feeding cylinder flows to the surface of the first filter bag for filtering;
the second arc-shaped drainage plate conveys the airflow transmitted in the gas feeding cylinder to the surface of a second filter bag for filtering;
and outputting the airflow after dust removal.
6. The high efficiency electrostatic fabric filter method of claim 5, wherein after the guiding fan cooperates with the first arc-shaped flow guiding plate to convey the air flow into the air feeding cylinder, the air flow which does not enter the air feeding cylinder flows to the surface of the first filter bag for filtration, the method further comprises:
the impact hammer impacts the first filter bag under the driving of the telescopic rod and the air cylinder, so that dust blocked on the surface of the first filter bag leaves the first filter bag, and the dust passes through the first filter bag to reach the second filter bag under the action of air flow.
7. The high efficiency electrostatic fabric composite dust collection method of claim 6, wherein before the second arc-shaped flow guide plate conveys the air flow transmitted in the air supply cylinder to the surface of the second filter bag for filtration, the method further comprises:
the third arc-shaped drainage plate drains the airflow in the gas cylinder to the surface, close to the outer side edge, of the first filter bag, and the airflow with dust passes through the surface, close to the outer side edge, of the first filter bag.
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| US7938885B2 (en) * | 2004-05-08 | 2011-05-10 | Qingbao Huang | Device for the removal of soot dust of fuel oil combustion |
| KR20090089695A (en) * | 2008-02-19 | 2009-08-24 | 유공유체산업(주) | Fillet-bag assembly of dust collector |
| CN203002152U (en) * | 2012-08-16 | 2013-06-19 | 江苏峰峰鸿运环保科技发展有限公司 | Composite dust collector of electric bag |
| CN205252736U (en) * | 2015-11-25 | 2016-05-25 | 吕珩 | Mix dust remover device |
| CN205517059U (en) * | 2016-01-21 | 2016-08-31 | 江苏菲达环保科技有限公司 | Composite type electrostatic -bag precipitator |
| CN207838509U (en) * | 2017-12-04 | 2018-09-11 | 烟台杰森节能环保设备有限公司 | A kind of abat-vent of sack cleaner |
| CN108114562A (en) * | 2017-12-22 | 2018-06-05 | 中国科学院过程工程研究所 | A kind of electricity bag compound dust-collection device and its processing method |
| CN209967961U (en) * | 2018-12-29 | 2020-01-21 | 南昌大学 | Shunting pulse-jet air filter element and dust removal device adopting same |
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