Incinerator flue gas treatment equipment and treatment process

Abstract

The present invention relates to the field of flue gas treatment technology, and more particularly to a flue gas treatment device and treatment process for an incinerator. The flue gas treatment device for an incinerator comprises a housing and a dust removal device. The dust removal device is provided in multiple pieces and arranged in an array within the housing, and comprises cathode wires, N first plates, N second plates, a cleaning assembly, and an auxiliary assembly. The auxiliary assembly causes the water nozzles of two cleaning units corresponding to the first plate to alternately spray water onto the surface of the first plate, causing water flows with opposite directions to alternately flow over the surface of the first plate, and at the same time, the water flows in the same direction on the N first plates. At the same time, the auxiliary assembly causes the water flow after flushing the first plate to alternately flow into the recovery ports of the two cleaning units for discharge, while the other part of the water continues to flush the surface of the second plate after passing through the recovery port.

Description

Technical Field

[0001] The present invention relates to the technical field of flue gas treatment, and in particular to a flue gas treatment device and a treatment process for an incinerator. Background Art

[0002] Vertical wet electrostatic precipitator is a new type of dust removal equipment used to deal with trace dust and microparticles. It is mainly used to remove dust, acid mist, water droplets, aerosols, odor, PM2.5 and other harmful substances in the gas. It is a commonly used equipment for treating incinerator flue gas and preventing atmospheric dust pollution.

[0003] Prior art, such as the Chinese patent application CN116251678B, titled "Vertical Wet Electrostatic Precipitator," discloses a technical solution comprising several dust collecting electrodes and cathode wires. The dust collecting electrodes are sieve tubes (anode tubes) with multiple through-holes in their walls. The sieve tubes are arranged vertically, and the cathode wires extend vertically along their axis. This creates an electric field within the sieve tubes. Flue gas enters the sieve tubes from their lower ends, where dust in the flue gas is driven by the electric field to collect on the inner wall of the sieve tubes. A spray head is located directly above the sieve tubes to spray intermittently, forming a water film on the inner wall of the sieve tubes. Dust is attracted to the water film and flows downward with it to a collection hopper below the sieve tubes. Using wet electrostatic precipitators, spraying water on the dust collecting electrodes (anode tubes) to form a water film can reduce the problem of secondary dust and rely on the water film to promote dust removal. However, existing water spray components are usually set at the top or bottom of the anode tubes, and the sprayed water flow has difficulty forming a water film on the surface of the anode tubes, making it impossible to perform uniform flushing. Summary of the Invention

[0004] The present invention provides a flue gas treatment device and a treatment process for an incinerator to solve the above problems.

[0005] The present invention provides a flue gas treatment device and treatment process for an incinerator, which adopts the following technical solutions: The flue gas treatment device and treatment process for an incinerator include a shell and a dust removal device; an air outlet is provided at the upper end of the shell, and an air inlet is provided at the lower end.

[0006] The dust removal device is arranged between the air outlet and the air inlet; the dust removal device is provided with a plurality of dust removal units, and the dust removal unit array is distributed in the shell, including a cathode wire, N first plates, N second plates, a cleaning assembly, and an auxiliary assembly; the cathode wire is fixed in the shell so as to extend up and down; the N first plates and the N second plates are alternately distributed circumferentially around the cathode wire, and are connected end to end to form a polygonal anode tube; N is a positive integer greater than 1; the anode tube and the shell are fixedly connected.

[0007] There are multiple cleaning assemblies distributed up and down along the axis of the anode tube; the cleaning assembly includes N cleaning structures distributed along the circumference of the anode tube; each cleaning structure corresponds to a first plate; the cleaning structure includes two cleaning units; the two cleaning units are symmetrically distributed on both sides of the corresponding first plate along the circumference of the anode tube; the cleaning unit includes a water spray port and a recovery port; the water spray port and recovery port of the same cleaning unit are opened on the same second plate; the water spray port and recovery port of the same cleaning assembly are at the same height. The recovery port is opened on the second plate and is located at the junction of the first plate and the second plate; the water spray port is opened on the second plate and is located on one side of the recovery port of the same cleaning unit, and the water spray port is equipped with a nozzle, which is facing the first plate. The number of first and second plates of each dust removal unit is set to four; the first plates of the anode tubes of adjacent dust removal units are close to each other and overlap each other; the second plates of the anode tubes of the four adjacent dust removal units distributed in an annular manner form a cavity with a rectangular cross-section; the auxiliary assembly is arranged in the cavity.

[0008] The auxiliary component enables the water nozzles of the two cleaning units corresponding to the first plate to spray water alternately onto the surface of the first plate, and enables the water flows in opposite directions to alternately flow through the surface of the first plate, and at the same time, the water flows in the same direction on the N first plates. At the same time, the auxiliary component enables a portion of the water after flushing the first plate to alternately flow into the recovery ports of the two cleaning units for discharge, so as to discharge part of the dust from the anode tube in time. At the same time, the multiple cleaning components distributed above and below are coordinated to clean the anode tube in sections and discharge the flushed sewage in time, so as to prevent the sewage from gradually flowing down and gathering at the lower end of the inner wall of the anode tube and failing to be discharged in time, thereby affecting the subsequent cleaning effect. The other part of the water continues to flush the surface of the second plate after passing the recovery port, so as to alternately form a uniform water film on the inner wall of the anode tube that flows forward and backward along the circumference of the anode tube, so as to prevent the formation of dead corners during cleaning and improve the cleaning effect. The auxiliary components include a matching column, a rotating column, a rotating drum, and an adjustment structure; the matching column axis is set up and down, and the cross-section is rectangular; the matching column is inserted into the cavity, and the side wall of the matching column is fixedly connected to the second plate; a coaxial mounting hole is provided at the axis of the matching column; two external hole groups are provided on each side wall of the matching column; the two external hole groups correspond to the cleaning units of two adjacent cleaning structures provided on the same second plate; the external hole groups include water spraying external holes and recovery external holes; the water spraying external holes connect the water spraying port and the mounting hole; the recovery external holes connect the recovery port and the mounting hole. The rotating column is set vertically and rotatably installed in the mounting hole; a downward-opening drainage groove is provided on the lower end surface of the rotating column; an upward-opening annular water inlet groove is provided on the upper end surface of the rotating column; the water inlet groove is coaxially arranged outside the drainage groove. Two inner hole groups are provided between the sidewalls of the rotating column and the four sidewalls of the mating column; each inner hole group corresponds to an outer hole group; the inner hole groups include a water spray inner hole and a recovery inner hole; the water spray inner hole is arranged radially along the rotating column, with the end near the rotating column axis connected to the water inlet trough; the recovery inner hole is arranged radially along the rotating column; a recovery pipe is inserted into the recovery inner hole; the end of the recovery pipe near the rotating column axis passes through the water inlet trough and connects to the drain trough; in an initial state, the water spray inner hole of one of the two inner hole groups is connected to the corresponding water spray outer hole of the outer hole group, and the pipe opening of the recovery pipe away from the rotating column axis is sealed with the hole wall of the mounting hole; the water spray inner hole of the other inner hole group is sealed with the hole wall of the mounting hole, and the pipe opening of the recovery pipe away from the rotating column axis is connected to the recovery outer hole of the corresponding outer hole group. A rotating drum is threadedly sleeved on the upper end of the rotating drum; a water inlet manifold is provided at the upper end of the rotating drum; the lower end of the water inlet manifold is rotatably engaged with the rotating drum, and the upper end is fixed to the housing; water flows from the water inlet manifold into the rotating drum and into the water inlet trough. The adjustment structure drives the rotating column to rotate back and forth around its own axis at a preset angle, so that the inner water spray hole originally connected to the outer water spray hole is rotated to cooperate with the hole wall seal of the mounting hole, the recovery pipe originally cooperated with the hole wall seal of the mounting hole is rotated to be connected to the corresponding recovery outer hole, the inner water spray hole originally cooperated with the hole wall seal of the mounting hole is rotated to be connected to the corresponding outer water spray hole, and the recovery pipe originally connected to the recovery outer hole is rotated to cooperate with the hole wall seal of the mounting hole, so as to realize alternating water spraying to the surface of the first plate.

[0009] Furthermore, the adjustment structure includes an adjustment groove, a piston cylinder, a piston plate, and a guide block; the adjustment groove is in an inverted Y shape and is opened on the inner wall of the water inlet manifold; the adjustment groove includes a vertical section and an inclined section; the vertical section extends in the vertical direction; there are two inclined sections, which are V-shaped with the small end facing upward; the vertical section and the two inclined sections are connected to each other.

[0010] The piston cylinder is coaxially arranged in the rotating cylinder and fixed to the upper end of the inner wall of the rotating cylinder; the piston plate is installed in the piston cylinder for sliding up and down; a spring is fixedly connected between the piston plate and the rotating cylinder; initially, the piston plate blocks the upper end of the rotating cylinder; an inverted L-shaped sliding rod is fixed to the upper end of the piston plate; the vertical section of the sliding rod is fixedly connected to the piston plate, and the transverse section of the sliding rod is slidably matched with the adjustment groove; initially, the transverse section of the sliding rod is at the vertical section of the adjustment groove.

[0011] The guide block has an arc-shaped lower end, with an elastic guide plate fixed to its upper end. The guide plate and guide block form a seesaw-like structure. The guide block is rotatably mounted at the junction of the lower groove walls of the two inclined sections. When the guide plate is horizontal, the distance between the guide plate end and the upper groove wall of the inclined section is less than the diameter of the slide rod. Curved elastic plates are provided on both sides of the guide plate near the inclined section of the adjustment groove. The elastic plates are located between the guide plate and the lower groove wall of the inclined section of the adjustment groove. The elastic plates are fixedly connected to the ends of the guide plate. Initially, the guide plate deflects, causing one end of the guide plate to tilt, one higher than the other. In other embodiments, the guide plates can be electromagnetically driven to deflect once initially, ensuring that all guide plates initially deflect in the same direction. When the anode tubes need to be cleaned, water is intermittently injected into the water inlet manifold. When water is injected into the water inlet manifold, the water pressure pushes the piston plate downward, overcoming the spring force. The piston plate then drives the slide rod from the vertical section of the adjustment groove to the inclined section. When the slide bar reaches the guide plate, it slides along the inclined guide plate toward the inclined section near the lower end of the guide plate. The slide bar squeezes the guide plate, causing the elastic piece at the lower end of the guide plate to abut against the lower groove wall of the inclined section and deform, causing the lower end of the guide plate to abut against the lower groove wall of the inclined section. When the slide bar passes over the guide plate, the elastic piece returns to its original position, forcing the lower end of the guide plate to move upward.

[0012] After the slide rod passes over the guide plate, it enters the inclined section of the adjustment groove, which causes the slide rod to drive the piston plate to rotate around the axis of the water inlet pipe by a preset angle. The piston plate then drives the rotating column to rotate by a preset angle through the rotating drum.

[0013] At this point, water pressure forces the piston plate away from the piston cylinder, allowing water in the water inlet manifold to flow into the water inlet trough through the gap between the piston plate and the rotating cylinder. When water injection stops, a spring forces the piston plate to move the slide rod upward. When the slide rod reaches the lower end of the guide plate, it pushes the lower end of the guide plate upward around the guide block, shifting the guide plate's initial lower end to the upper end. When water is injected into the water inlet manifold again, the slide rod slides under the guide plate's guidance into the other inclined section of the adjustment trough, forcing the piston plate, via the rotating cylinder, to rotate the rotating column in the opposite direction by a preset angle. Thus, the rotating column is driven to rotate back and forth around the axis of the rotating column at a preset angle, so that the inner water spray hole originally connected with the outer water spray hole is rotated to cooperate with the hole wall seal of the mounting hole, the recovery pipe originally cooperated with the hole wall seal of the mounting hole is rotated to be connected to the corresponding recovery outer hole, the inner water spray hole originally cooperated with the hole wall seal of the mounting hole is rotated to be connected to the corresponding outer water spray hole, and the recovery pipe originally connected with the recovery outer hole is rotated to cooperate with the hole wall seal of the mounting hole, so as to realize alternating water spraying to the surface of the first plate.

[0014] Furthermore, a water inlet is provided at the upper end of the shell; a water inlet main is passed into the water inlet; and the water inlet main is communicated with the water inlet branch.

[0015] Furthermore, a collection hopper is provided below the anode tube. Part of the sewage enters the outer recovery hole through the recovery port, then enters the recovery pipe, flows from the recovery pipe into the drainage trough, and flows into the collection hopper from the lower end of the drainage trough. The other part of the sewage flows down along the inner wall of the anode tube into the collection hopper.

[0016] Furthermore, a work frame is fixed on the shell to facilitate workers to inspect and repair.

[0017] Furthermore, the gaps between adjacent anode tubes are blocked by partitions to prevent the flue gas from escaping to the top of the anode tubes without being purified by the anode tubes.

[0018] A flue gas treatment process for an incinerator, using the flue gas treatment equipment of the incinerator, comprises the following steps:

[0019] S10, when the anode tube needs to be cleaned, water is intermittently injected into the water inlet branch;

[0020] S20, driving the rotating column to rotate forward and backward around its own axis by a preset angle through the adjustment structure, so that the water nozzles of the two cleaning units corresponding to the first plate alternately spray water toward the surface of the first plate, and water flows in opposite directions alternately flow over the surface of the first plate;

[0021] S30, after flushing the first plate, part of the water alternately flows into the recovery ports of the two cleaning units and is discharged, and the other part of the water continues to flush the surface of the second plate after passing the recovery port, so as to form a uniform water film on the inner wall of the anode tube that alternately flows forward and backward along the circumference of the anode tube; cooperate with multiple cleaning components distributed above and below to clean the anode tube in sections and discharge the flushed sewage in time.

[0022] The beneficial effects of the present invention are as follows: the auxiliary component enables the water outlets of the two cleaning units corresponding to the first plate to spray water alternately onto the surface of the first plate, and enables the water flows in opposite directions to alternately flow through the surface of the first plate, and at the same time, the water flows in the N first plates have the same direction; at the same time, the auxiliary component enables the water flow after flushing the first plate, and a part of the water alternately flows into the recovery ports of the two cleaning units for discharge, so as to discharge part of the dust out of the anode tube in time; at the same time, the multiple cleaning components distributed up and down are coordinated to clean the anode tube in sections and discharge the flushed sewage in time, so as to prevent the sewage from gradually flowing down and gathering at the lower end of the inner wall of the anode tube and failing to be discharged in time, thereby affecting the subsequent cleaning effect; the other part of the water continues to flush the surface of the second plate after passing the recovery port, so as to alternately form a uniform water film on the inner wall of the anode tube that flows forward and backward along the circumference of the anode tube, so as to prevent the formation of dead corners during cleaning and improve the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 This is a schematic structural diagram of an embodiment of a flue gas treatment device for an incinerator according to the present invention;

[0025] Figure 2 A side view of an embodiment of a flue gas treatment device for an incinerator according to the present invention;

[0026] Figure 3 A schematic diagram of a dust removal device of an embodiment of a flue gas treatment device for an incinerator according to the present invention;

[0027] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0028] Figure 5 A side view of a dust removal device of an embodiment of a flue gas treatment device for an incinerator according to the present invention;

[0029] Figure 6 for Figure 5 Cross-sectional view at the middle BB;

[0030] Figure 7 for Figure 5 Cross-sectional view at CC;

[0031] Figure 8 for Figure 7 Enlarged view of point D in the middle;

[0032] Figure 9 A schematic diagram of a matching column, a rotating column, and a rotating drum of an embodiment of a flue gas treatment device for an incinerator according to the present invention;

[0033] Figure 10 A side view of a rotating column and a rotating drum of an embodiment of a flue gas treatment device for an incinerator according to the present invention;

[0034] Figure 11 for Figure 10 Cross-sectional view at EE;

[0035] Figure 12 for Figure 11 Enlarged view of point F in the middle;

[0036] Figure 13 A top view of a matching column and a rotating drum of an embodiment of a flue gas treatment device for an incinerator according to the present invention;

[0037] Figure 14 for Figure 13 Cross-sectional view at GG in the middle;

[0038] Figure 15 for Figure 14 Enlarged view of point H in the middle.

[0039] In the figure: 100, outer shell; 110, air outlet; 120, air inlet; 130, water inlet; 200, cathode line; 300, anode tube; 310, first plate; 320, second plate; 321, water outlet; 322, recovery port; 400, matching column; 410, water spray outer hole; 420, recovery outer hole; 500, rotating column; 510, water spray inner hole; 520, recovery pipe; 530, water inlet trough; 540, drainage trough; 600, rotating drum; 700, water inlet manifold; 710, adjusting trough; 711, vertical section; 712, inclined section; 810, piston cylinder; 820, piston plate; 830, sliding rod; 910, guide block; 920, guide plate; 930, elastic sheet. DETAILED DESCRIPTION

[0040] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed, detachable, or integral connections; mechanical or electrical connections; direct or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0041] An embodiment of a flue gas treatment device for an incinerator of the present invention is as follows Figures 1 to 15As shown, it includes a housing 100 and a dust removal device; an air outlet 110 is provided at the upper end of the housing 100, and an air inlet 120 is provided at the lower end. A workbench is fixed on the housing 100 to facilitate workers to inspect and repair.

[0042] The dust removal device is located between the air outlet 110 and the air inlet 120. The dust removal device includes multiple dust removal units arranged in an array within the housing 100. These units include a cathode wire 200, N first plates 310, N second plates 320, a cleaning assembly, and auxiliary components. The cathode wire 200 is fixed to the housing 100, extending vertically. The N first plates 310 and N second plates 320 are alternately distributed circumferentially around the cathode wire 200 and connected end-to-end to form a polygonal anode tube 300. N is a positive integer greater than 1. The anode tube 300 is fixedly connected to the housing 100. The gaps between adjacent anode tubes 300 are sealed by partitions to prevent flue gas from escaping above the anode tubes 300 without being purified by the anode tubes 300.

[0043] There are multiple cleaning assemblies distributed up and down along the axis of the anode tube 300; the cleaning assembly includes N cleaning structures distributed along the circumference of the anode tube 300; each cleaning structure corresponds to a first plate 310; the cleaning structure includes two cleaning units; the two cleaning units are symmetrically distributed on both sides of the corresponding first plate 310 along the circumference of the anode tube 300; the cleaning unit includes a water spray port 321 and a recovery port 322; the water spray port 321 and the recovery port 322 of the same cleaning unit are opened on the same second plate 320; the water spray port 321 and the recovery port 322 of the same cleaning assembly are at the same height. The recovery port 322 is opened on the second plate 320 and is located at the junction of the first plate 310 and the second plate 320; the water spray port 321 is opened on the second plate 320 and is located on one side of the recovery port 322 of the same cleaning unit. The water spray port 321 has a built-in nozzle, and the nozzle faces the first plate 310.

[0044] Among them, preferably, the number of the first plate 310 and the second plate 320 of each dust removal unit is set to four; the first plates 310 of the anode tubes 300 of adjacent dust removal units are close to each other and overlap with each other; the second plates 320 of the anode tubes 300 of the four adjacent dust removal units are distributed in a ring and form a cavity with a rectangular cross-section; the auxiliary components are arranged in the cavity.

[0045] The auxiliary component enables the water outlets 321 of the two cleaning units corresponding to the first plate 310 to spray water alternately onto the surface of the first plate 310, so that the water flows in opposite directions alternately flow through the surface of the first plate 310, and at the same time, the water flow directions on the N first plates 310 are the same. At the same time, the auxiliary component enables a portion of the water after flushing the first plate 310 to alternately flow into the recovery ports 322 of the two cleaning units for discharge, so as to discharge part of the dust from the anode tube 300 in time. At the same time, the multiple cleaning components distributed above and below are coordinated to clean the anode tube 300 in sections and discharge the flushed sewage in time, so as to prevent the sewage from gradually flowing down and gathering at the lower end of the inner wall of the anode tube 300 and not being able to be discharged in time, thereby affecting the subsequent cleaning effect. The other part of the water continues to flush the surface of the second plate 320 after passing the recovery port 322, so as to alternately form a uniform water film on the inner wall of the anode tube 300 that flows forward and backward along the circumference of the anode tube 300, so as to prevent the formation of dead corners during cleaning and improve the cleaning effect.

[0046] The auxiliary components include a matching column 400, a rotating column 500, a rotating drum 600, and an adjustment structure; the axis of the matching column 400 is arranged up and down, and the cross-section is rectangular; the matching column 400 is inserted in the cavity, and the side wall of the matching column 400 is fixedly connected to the second plate 320; a coaxial mounting hole is provided at the axis of the matching column 400; two external hole groups are provided on each side wall of the matching column 400; the two external hole groups correspond to two adjacent cleaning structures, respectively, and are provided on the cleaning units of the same second plate 320; the external hole group includes a water spraying outer hole 410 and a recovery outer hole 420; the water spraying outer hole 410 connects the water spraying port 321 with the mounting hole; the recovery outer hole 420 connects the recovery port 322 with the mounting hole.

[0047] The rotating column 500 is arranged vertically and rotatably installed in the mounting hole; a drainage groove 540 with an opening facing downward is provided on the lower end surface of the rotating column 500; an annular water inlet groove 530 with an opening facing upward is provided on the upper end surface of the rotating column 500; the water inlet groove 530 is coaxially arranged on the outside of the drainage groove 540.

[0048] Two inner hole groups are provided between the side wall of the rotating column 500 and the four side walls of the matching column 400; each inner hole group corresponds to an outer hole group; the inner hole group includes a water spray inner hole 510 and a recovery inner hole; the water spray inner hole 510 is arranged along the radial direction of the rotating column 500, and the end close to the axis of the rotating column 500 is connected to the water inlet groove 530; the recovery inner hole is arranged along the radial direction of the rotating column 500; a recovery pipe 520 is inserted into the recovery inner hole; the end of the recovery pipe 520 close to the axis of the rotating column 500 is connected to the water inlet groove 530; After passing through the water inlet groove 530, it is connected to the drainage groove 540; in the initial state, the water spraying inner hole 510 of one of the two inner hole groups is connected to the water spraying outer hole 410 of the corresponding outer hole group, and the pipe mouth of the recovery pipe 520 away from the axis of the rotating column 500 is sealed with the hole wall of the mounting hole, and the water spraying inner hole 510 of the other inner hole group is sealed with the hole wall of the mounting hole, and the pipe mouth of the recovery pipe 520 away from the axis of the rotating column 500 is connected to the recovery outer hole 420 of the corresponding outer hole group.

[0049] The rotating drum 600 is threadedly mounted on the upper end of the rotating column 500. A water inlet manifold 700 is provided at the upper end of the rotating drum 600. The lower end of the water inlet manifold 700 rotatably engages the rotating drum 600, while the upper end is fixed within the housing 100. Water flows from the water inlet manifold 700 into the rotating drum 600 and into the water inlet trough 530. A water inlet 130 is provided at the upper end of the housing 100. The water inlet 130 connects to the water inlet main, which is in communication with the water inlet manifold 700.

[0050] The adjustment structure drives the rotating column 500 to rotate back and forth around its own axis at a preset angle, so that the inner water spray hole 510 originally connected with the outer water spray hole 410 is rotated to cooperate with the hole wall seal of the mounting hole, and the recovery pipe 520 originally coordinated with the hole wall seal of the mounting hole is rotated to be connected to the corresponding recovery outer hole 420, and the inner water spray hole 510 originally coordinated with the hole wall seal of the mounting hole is rotated to be connected to the corresponding outer water spray hole 410, and the recovery pipe 520 originally connected with the recovery outer hole 420 is rotated to cooperate with the hole wall seal of the mounting hole, so as to realize alternating direction water spraying to the surface of the first plate 310. The adjustment structure includes an adjustment groove 710, a piston cylinder 810, a piston plate 820, and a guide block 910; the adjustment groove 710 is in an inverted Y shape and is opened on the inner wall of the water inlet manifold 700; the adjustment groove 710 includes a vertical section 711 and an inclined section 712; the vertical section 711 extends in the vertical direction; there are two inclined sections 712, which are V-shaped with the small end facing upward; the vertical section 711 and the two inclined sections 712 are connected to each other.

[0051] The piston cylinder 810 is coaxially arranged in the rotating cylinder 600 and fixed at the upper end of the inner wall of the rotating cylinder 600; the piston plate 820 is installed in the piston cylinder 810 for sliding up and down; a spring is fixedly connected between the piston plate 820 and the rotating cylinder 600; initially, the piston plate 820 blocks the upper end of the rotating cylinder 600; an inverted L-shaped sliding rod 830 is fixed to the upper end of the piston plate 820; the vertical section of the sliding rod 830 is fixedly connected to the piston plate 820, and the horizontal section of the sliding rod 830 is slidably matched with the adjustment groove 710; initially, the horizontal section of the sliding rod 830 is at the vertical section 711 of the adjustment groove 710.

[0052] The guide block 910 has an arc-shaped lower end, with an elastic guide plate 920 fixed to its upper end. The guide plate 920 and guide block 910 form a seesaw-like configuration. The guide block 910 is rotatably mounted at the junction of the lower groove walls of the two inclined sections 712. When the guide plate 920 is horizontal, the distance between the end of the guide plate 920 and the upper groove wall of the inclined section 712 is less than the diameter of the slide bar 830. Arc-shaped elastic plates 930 are provided on both sides of the guide plate 920 near the inclined section 712 of the adjustment groove 710. The elastic plates 930 are positioned between the guide plate 920 and the lower groove wall of the inclined section 712 of the adjustment groove 710. The elastic plates 930 are fixedly connected to the ends of the guide plate 920. Initially, the guide plate 920 deflects, resulting in an inclined configuration with one end higher than the other. In other embodiments, the guide plates 920 can be electromagnetically driven to deflect once initially to ensure that all guide plates 920 initially deflect in the same direction. When the anode tube 300 needs to be cleaned, water is intermittently injected into the water inlet manifold 700. When water is injected into the water inlet manifold 700, the water pressure pushes the piston plate 820 downward, overcoming the spring force. The piston plate 820 drives the slide bar 830 from the vertical section 711 of the adjustment groove 710 toward the inclined section 712. When the slide bar 830 slides to the guide plate 920, it slides along the inclined guide plate 920 toward the inclined section 712 near the lower end of the guide plate 920. The slide bar 830 presses against the guide plate 920, causing the elastic sheet 930 at the lower end of the guide plate 920 to abut against the lower groove wall of the inclined section 712 and deform, causing the lower end of the guide plate 920 to abut against the lower groove wall of the inclined section 712. After the slide bar 830 passes over the guide plate 920, the elastic sheet 930 returns to its original position, forcing the lower end of the guide plate 920 to move upward. After the slide rod 830 passes over the guide plate 920, it enters the inclined section 712 of the adjustment groove 710. The inclined section 712 enables the slide rod 830 to drive the piston plate 820 to rotate a preset angle around the axis of the water inlet manifold 700. The piston plate 820, in turn, drives the rotating column 500 to rotate a preset angle via the rotating drum 600.

[0053] At this point, water pressure forces piston plate 820 away from piston cylinder 810, and water within water inlet manifold 700 flows into water inlet groove 530 through the gap between piston plate 820 and rotating drum 600. When water injection stops, a spring forces piston plate 820 to move slide rod 830 upward. When slide rod 830 reaches the lower end of guide plate 920, it pushes the lower end of guide plate 920 to rotate upward around guide block 910, shifting the guide plate 920's initial lower end to the upper end. When water inlet manifold 700 is injected with water again, slide rod 830, guided by guide plate 920, slides into the other inclined section 712 of adjustment groove 710, forcing piston plate 820, via rotating drum 600, to rotate rotating column 500 in the opposite direction by a predetermined angle. Thus, the rotating column 500 is driven to rotate back and forth around the axis of the rotating column 500 at a preset angle, so that the inner water hole 510 originally connected with the outer water hole 410 is rotated to cooperate with the hole wall seal of the mounting hole, the recovery pipe 520 originally coordinated with the hole wall seal of the mounting hole is rotated to be connected to the corresponding recovery outer hole 420, the inner water hole 510 originally coordinated with the hole wall seal of the mounting hole is rotated to be connected to the corresponding outer water hole 410, and the recovery pipe 520 originally connected with the recovery outer hole 420 is rotated to cooperate with the hole wall seal of the mounting hole, so as to realize alternating direction water spraying onto the surface of the first plate 310.

[0054] A collection hopper is provided below the anode tube 300. Some of the wastewater enters the outer recovery hole 420 through the recovery port 322, then flows into the recovery pipe 520, flows from the recovery pipe 520 into the drainage trough 540, and flows into the collection hopper from the lower end of the drainage trough 540. The remaining wastewater flows down the inner wall of the anode tube 300 into the collection hopper.

[0055] A flue gas treatment process for an incinerator, utilizing the flue gas treatment equipment of the incinerator, includes the following steps: first, when the anode tube 300 needs to be cleaned, water is intermittently injected into the water inlet manifold 700; second, by adjusting the structure, the rotating column 500 is driven to rotate back and forth around its own axis by a preset angle, so that the water spray ports 321 of the two cleaning units corresponding to the first plate 310 alternately spray water onto the surface of the first plate 310, and the water flows in opposite directions alternately through the surface of the first plate 310; third, after flushing the first plate 310, part of the water alternately flows into the recovery ports 322 of the two cleaning units for discharge, and the other part of the water continues to flush the surface of the second plate 320 after passing through the recovery port 322, so as to form a uniform water film on the inner side wall of the anode tube 300, which alternately flows forward and reversely along the circumference of the anode tube 300; and multiple cleaning components distributed above and below are used to clean the anode tube 300 in sections and discharge the flushed sewage in a timely manner.

[0056] In combination with the above embodiments, the operating principle and working process of the present invention are as follows: when in use, the anode tube 300 and the cathode wire 200 are energized to form an electric field inside the anode tube 300. Flue gas is introduced into the air inlet 120. Driven by the electric field, the dust in the flue gas moves toward the anode tube 300, causing the dust to adhere to the inner wall of the anode tube 300, and the purified flue gas is discharged through the air outlet 110. When the anode tube 300 needs to be cleaned, water is intermittently injected into the water inlet manifold 700. When water is injected into the water inlet manifold 700, the water pressure pushes the piston plate 820 to overcome the spring force and move downward. The piston plate 820 drives the slide rod 830 to slide from the vertical section 711 of the adjustment groove 710 to the inclined section 712. When the slide bar 830 slides to the guide plate 920, it slides along the inclined guide plate 920 toward the inclined section 712 near the lower end of the guide plate 920. The slide bar 830 presses against the guide plate 920, causing the elastic piece 930 at the lower end of the guide plate 920 to abut against the lower groove wall of the inclined section 712 and deform, causing the lower end of the guide plate 920 to abut against the lower groove wall of the inclined section 712. After the slide bar 830 passes over the guide plate 920, the elastic piece 930 returns to its original position, forcing the lower end of the guide plate 920 to move upward.

[0057] After the slide rod 830 passes over the guide plate 920, it enters the inclined section 712 of the adjustment groove 710. The inclined section 712 enables the slide rod 830 to drive the piston plate 820 to rotate a preset angle around the axis of the water inlet manifold 700. The piston plate 820, in turn, drives the rotating column 500 to rotate a preset angle via the rotating drum 600.

[0058] At this point, water pressure forces piston plate 820 away from piston cylinder 810, and water within water inlet manifold 700 flows into water inlet groove 530 through the gap between piston plate 820 and rotating drum 600. When water injection stops, a spring forces piston plate 820 to move slide rod 830 upward. When slide rod 830 reaches the lower end of guide plate 920, it pushes the lower end of guide plate 920 to rotate upward around guide block 910, shifting the guide plate 920's initial lower end to the upper end. When water inlet manifold 700 is injected with water again, slide rod 830, guided by guide plate 920, slides into the other inclined section 712 of adjustment groove 710, forcing piston plate 820, via rotating drum 600, to rotate rotating column 500 in the opposite direction by a predetermined angle.

[0059] Thus, the rotating column 500 is driven to rotate forward and backward about its axis by a preset angle, so that the inner water-spraying hole 510 originally connected to the outer water-spraying hole 410 is rotated to cooperate with the hole wall of the mounting hole, the recovery pipe 520 originally cooperated with the hole wall of the mounting hole is rotated to communicate with the corresponding outer water-spraying hole 420, the inner water-spraying hole 510 originally cooperated with the hole wall of the mounting hole is rotated to communicate with the corresponding outer water-spraying hole 410, and the recovery pipe 520 originally connected to the outer recovery hole 420 is rotated to cooperate with the hole wall of the mounting hole, thereby realizing alternating water spraying onto the surface of the first plate 310. Water flows in opposite directions alternately flow over the surface of the first plate 310, and the water flows in the same direction on the N first plates 310 at the same time. After flushing the first plate 310, a portion of the water alternately flows into the recovery ports 322 of the two cleaning units for discharge, thereby promptly removing some dust from the anode tube 300. Simultaneously, multiple cleaning assemblies distributed above and below are used to clean the anode tube 300 in sections and promptly discharge the flushed wastewater, preventing it from gradually flowing down and accumulating at the lower end of the inner wall of the anode tube 300, preventing it from being discharged in time and affecting subsequent cleaning results. Another portion of the water, after passing through the recovery port 322, continues to flush the surface of the second plate 320, forming a uniform water film on the inner wall of the anode tube 300, alternating forward and reverse flows along the circumference of the anode tube 300. This prevents blind spots from forming during cleaning and improves cleaning results. A portion of the wastewater enters the recovery outer hole 420 through the recovery port 322, then enters the recovery pipe 520, from which it enters the drainage trough 540 and flows from the lower end of the drainage trough 540 into the collection hopper. Another portion of the wastewater flows down along the inner wall of the anode tube 300 into the collection hopper.

[0060] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A flue gas treatment device for an incinerator, characterized by: Including housing and dust removal device; An air outlet is provided at the upper end of the shell, and an air inlet is provided at the lower end; The dust removal device is provided between the air outlet and the air inlet; the dust removal device is provided with a plurality of dust removal units, and the dust removal unit array is distributed in the housing, including cathode wires, N first plates, N second plates, a cleaning component, and an auxiliary component; The cathode wire is fixed in the housing so as to extend up and down; N first plates and N second plates are alternately distributed around the cathode line and connected end to end to form a polygonal anode tube; N is a positive integer greater than 1; the anode tube is fixedly connected to the shell; There are multiple cleaning assemblies distributed up and down along the axis of the anode tube; the cleaning assembly includes N cleaning structures distributed along the circumference of the anode tube; each cleaning structure corresponds to a first plate; the cleaning structure includes two cleaning units; the two cleaning units are symmetrically distributed on both sides of the corresponding first plate along the circumference of the anode tube; the cleaning unit includes a water spray port and a recovery port; the water spray port and recovery port of the same cleaning unit are opened on the same second plate; the water spray port and recovery port of the same cleaning assembly are at the same height; the recovery port is opened on the second plate and is arranged at the junction of the first plate and the second plate; the water spray port is opened on the second plate and is arranged on one side of the recovery port of the same cleaning unit, and a nozzle is built into the water spray port, and the nozzle is facing the first plate; the number of first plates and second plates of each dust removal unit is set to four; the first plates of the anode tubes of adjacent dust removal units are close to each other and overlap each other; the second plates of the anode tubes of the four adjacent dust removal units distributed in an annular manner form a cavity with a rectangular cross-section; The auxiliary component is disposed in the cavity; The auxiliary component enables the water nozzles of the two cleaning units corresponding to the first plate to spray water alternately to the surface of the first plate, and the water flows in opposite directions alternately flow through the surface of the first plate, and at the same time, the water flows in the same direction on N first plates. At the same time, the auxiliary component enables the water flow after flushing the first plate to alternately flow into the recovery ports of the two cleaning units for discharge, and the other part of the water continues to flush the surface of the second plate after passing through the recovery port; the auxiliary component includes a matching column, a rotating column, a rotating drum, and an adjusting structure; the axis of the matching column is arranged up and down, and the cross section is rectangular; the matching column is inserted in the air In the cavity, the side wall of the matching column is fixedly connected to the second plate; a coaxial mounting hole is provided at the axis of the matching column; two external hole groups are provided on each side wall of the matching column; the two external hole groups correspond to the cleaning units of the two adjacent cleaning structures provided on the same second plate; the external hole group includes a water spraying external hole and a recovery external hole; the water spraying external hole connects the water spraying port and the mounting hole; the recovery external hole connects the recovery port and the mounting hole; the rotating column is vertically arranged and rotatably installed in the mounting hole; a drainage groove with an opening facing downward is provided on the lower end surface of the rotating column; a drainage groove with an opening facing upward is provided on the upper end surface of the rotating column annular water inlet groove; the water inlet groove is coaxially arranged on the outside of the drainage groove; two inner hole groups are provided between the side wall of the rotating column and the four side walls of the matching column; each inner hole group corresponds to an outer hole group; the inner hole group includes a water spray inner hole and a recovery inner hole; the water spray inner hole is arranged along the radial direction of the rotating column, and the end close to the axis of the rotating column is connected to the water inlet groove; the recovery inner hole is arranged along the radial direction of the rotating column; a recovery pipe is inserted into the recovery inner hole; the end of the recovery pipe close to the axis of the rotating column passes through the water inlet groove and is connected to the drainage groove; in the initial state, the water spray inner hole and The corresponding outer water holes of the outer hole group are connected, the pipe mouth of the recovery pipe away from the axis of the rotating column is sealed with the hole wall of the mounting hole, the inner water holes of the other inner hole group are sealed with the hole wall of the mounting hole, and the pipe mouth of the recovery pipe away from the axis of the rotating column is connected with the recovery outer holes of the corresponding outer hole group; the rotating cylinder is threadedly sleeved on the upper end of the rotating cylinder; a water inlet manifold is provided on the upper end of the rotating cylinder; the lower end of the water inlet manifold is rotatably matched with the rotating cylinder, and the upper end is fixed in the outer shell; water flows into the rotating cylinder from the water inlet manifold and enters the water inlet trough; the adjustment structure drives the rotating column to rotate back and forth around its own axis at a preset angle.

2. The flue gas treatment equipment for an incinerator according to claim 1, characterized in that: The adjustment structure includes an adjustment groove, a piston cylinder, a piston plate, and a guide block; The regulating groove is in an inverted Y shape and is provided on the inner wall of the water inlet manifold; the regulating groove includes a vertical section and an inclined section; the vertical section extends in the vertical direction; there are two inclined sections, which are in a V shape with the small end facing upward; the vertical section and the two inclined sections are connected to each other; The piston cylinder is coaxially arranged in the rotating cylinder and fixed to the upper end of the inner wall of the rotating cylinder; the piston plate is installed in the piston cylinder for sliding up and down; a spring is fixedly connected between the piston plate and the rotating cylinder; initially, the piston plate blocks the upper end of the rotating cylinder; an inverted L-shaped sliding rod is fixed to the upper end of the piston plate; the vertical section of the sliding rod is fixedly connected to the piston plate, and the horizontal section of the sliding rod is slidably engaged with the adjustment groove; initially, the horizontal section of the sliding rod is located at the vertical section of the adjustment groove; The lower end of the guide block is arc-shaped, and an elastic guide plate is fixed to the upper end; the guide plate and the guide block are in a seesaw shape; the guide block is rotatably mounted at the junction of the lower groove walls of the two inclined sections; when the guide plate is in a horizontal state, the distance between the end of the guide plate and the upper groove wall of the inclined section is smaller than the diameter of the slide rod; arc-shaped elastic sheets are provided on both sides of the inclined section of the guide plate close to the adjustment groove; the elastic sheet is provided between the guide plate and the lower groove wall of the inclined section of the adjustment groove; the elastic sheet is fixedly connected to the end of the guide plate; initially, the guide plate deflects so that the two ends of the guide plate are inclined in a high and low state.

3. The flue gas treatment equipment for an incinerator according to claim 2, characterized in that: The upper end of the shell is provided with a water inlet; the water inlet is connected to a water inlet main pipe; the water inlet main pipe is communicated with the water inlet branch pipe.

4. The flue gas treatment equipment for an incinerator according to claim 3, characterized in that: A collecting hopper is provided under the anode tube.

5. The flue gas treatment equipment for an incinerator according to claim 4, characterized in that: A working frame is fixed on the shell.

6. The flue gas treatment equipment for an incinerator according to claim 5, characterized in that: The gaps between adjacent anode tubes are sealed by partitions.

7. A flue gas treatment process for an incinerator, using the flue gas treatment equipment for an incinerator according to claim 6, characterized in that: The following steps are involved: S10, when the anode tube needs to be cleaned, water is intermittently injected into the water inlet branch; S20, driving the rotating column to rotate forward and backward around its own axis by a preset angle through the adjustment structure, so that the water nozzles of the two cleaning units corresponding to the first plate alternately spray water toward the surface of the first plate, and water flows in opposite directions alternately flow over the surface of the first plate; S30, after flushing the first plate, part of the water alternately flows into the recovery ports of the two cleaning units and is discharged, while the other part of the water continues to flush the surface of the second plate after passing through the recovery ports, so as to form a uniform water film on the inner wall of the anode tube, which alternately flows forward and backward along the circumference of the anode tube; Cooperate with multiple cleaning components distributed above and below to clean the anode tube in sections and discharge the flushing wastewater in time.

Images