High-temperature waste gas treatment device for biomass combustion boiler

Abstract

The invention discloses a high-temperature waste gas treatment device for a biomass combustion boiler, and belongs to the technical field of high-temperature waste gas treatment, the high-temperature waste gas treatment device comprises a treatment tower, a demister is arranged on the top side of the interior of the treatment tower, a plurality of filter screens are arranged below the demister, and the high-temperature waste gas treatment device further comprises a plurality of spraying main pipes, a plurality of spraying branch pipes are communicated with the two sides of the spraying main pipe; and the thermal insulation pipe sleeve is arranged on the peripheral sides of the spraying main pipe and the spraying branch pipes in a sleeving mode, an inner cavity is formed in the thermal insulation pipe sleeve, and a plurality of first through holes are formed in the bottom side of the interior of the thermal insulation pipe sleeve. According to the device, the use positions between different first conical blocks and racks are initially set, through the action of a first electric push rod and an annular sliding plate, the temperature of conveyed waste gas in the treatment tower is monitored in cooperation with an infrared sensor, and the extending distances of spiral nozzles at different positions relative to the interior of a round base are adjusted; independent partition height adjustment of the multiple spiral nozzles in the treatment tower is achieved, and the device adapts to the space difference of working conditions in the tower.

Description

Technical Field

[0001] The present invention belongs to the technical field of high-temperature waste gas treatment, and in particular relates to a high-temperature waste gas treatment device for a biomass combustion boiler. Background Art

[0002] A biomass combustion boiler is an industrial or civilian equipment specially designed to burn biomass fuel to generate heat energy. It is the core device for biomass energy utilization, and is designed to efficiently convert the chemical energy stored in biomass into usable heat energy. During its use, high-temperature combustion exhaust gas will be generated, so a high-temperature exhaust gas treatment device is required to reduce the temperature of the exhaust gas and reduce impurities such as fly ash in the exhaust gas.

[0003] For example, a Chinese patent document (CN104667682B) discloses a device and process for treating oil fume waste gas from a high-temperature setting machine. The main body of the device is an absorption tower, and the tower body of the absorption tower is divided into a water spray treatment section, a wet electrostatic falling film absorption section, and a demisting section from bottom to top. An exhaust gas inlet is provided on one side of the bottom of the absorption tower, and an oil-water separator is installed on the other side of the bottom of the tower. A water spray system is provided on the top of the water spray treatment section, and the water inlet of the water spray system is provided on the outside of the tower body; the wet electrostatic falling film absorption section is composed of an electrostatic discharge electrode, a water film generating device, and a heat exchanger; the demisting section is located at the top of the absorption tower body, and a demisting device is provided in the demisting section. This invention organically combines the advantages of water spray towers and falling film absorption towers, and solves the shortcoming of traditional membrane absorption towers that need to be frequently cleaned, so that the system can operate for a long time without worrying about the surface of the collecting plate being scaled by oil. However, during the use of the device, the contact range between its water spray system and the exhaust gas is fixed. When the air inlet pipe transports the high-temperature exhaust gas to the bottom space of the tower, the high-temperature exhaust gas rises in the tower, and the exhaust gas concentration in its area may change. The fixed spray system may cause part of the exhaust gas to escape, thereby affecting the overall treatment effect of the device. Therefore, improvement is needed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem that in the use of the existing technology, the contact range between the water spray system and the exhaust gas is fixed. When the air inlet pipe transports the high-temperature exhaust gas to the bottom space of the tower, the high-temperature exhaust gas rises in the tower. The exhaust gas concentration in the area may change, and the fixed spray system may cause part of the exhaust gas to escape, thereby affecting the overall treatment effect of the device. A high-temperature exhaust gas treatment device for a biomass combustion boiler is proposed.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions: A high-temperature exhaust gas treatment device for a biomass combustion boiler includes a treatment tower, a demister is provided on the top side of the treatment tower, and multiple filter screens are provided below the demister, and further includes: Multiple spray mains are installed above multiple filters, and multiple spray branches are connected to both sides of the spray mains; an insulating pipe sleeve, which is sleeved on the outer circumference of the main spray pipe and the branch spray pipe, wherein an inner cavity is formed inside the insulating pipe sleeve, and a plurality of first through holes are formed on the bottom side of the insulating pipe sleeve; A plurality of round seats are equidistantly installed on the bottom side of the spray main pipe and the spray branch pipe, and the round seats are located inside the first through hole, and the top ends of the round seats are connected to the spray main pipe and the spray branch pipe; Multiple spiral nozzles are installed on the bottom side of the round seat; The adjustment component is installed inside the insulation pipe sleeve and is used to adjust the use positions of multiple spiral nozzles separately and synchronously to control the output spray angle and range of the spiral nozzles; The parallel adjustment component is installed inside the insulation pipe sleeve and is located on one side of the adjustment component, and is used to further adjust the movement stroke of the spiral nozzle; First, install the treatment tower to a suitable position, and then transport the waste gas from the biomass combustion boiler after heat recovery to the bottom side of the treatment tower. After that, spray the treatment liquid into the treatment tower through the delivery main pipe, spray main pipe, spray branch pipe, round seat and spiral nozzle, and collide with and react with the waste gas inside the treatment tower. The waste gas carrying part of the heat entering the treatment tower is monitored by an external infrared sensor, and then the adjustment component adjusts the spiral nozzles at different positions separately or synchronously, changing the waste gas spraying treatment effect of the spiral nozzles at different positions on different positions, greatly improving the flexibility and treatment effect of the spiral nozzle during use. Afterwards, the use stroke of the spiral nozzle is further adjusted by the parallel adjustment component according to actual needs, further ensuring the overall treatment effect of the device.

[0006] Preferably, the adjustment component comprises: Two connecting plates are symmetrically installed on both sides of the insulation pipe sleeve, and the connecting plates are located on the bottom side of the insulation pipe sleeve; Two groups of first cone blocks are fixed to one side of the outside of the connecting plate, and the two groups of first cone blocks are arranged on opposite sides of the two connecting plates, wherein each group of first cone blocks is provided with a plurality of first cone blocks, and the plurality of first cone blocks are distributed on the connecting plate, and the two groups of first cone blocks are distributed in a cross array; Two groups of second cone blocks are symmetrically connected to opposite sides of the connecting plate at equal distances, wherein each group of second cone blocks is provided with a plurality of second cone blocks, and the plurality of second cone blocks are provided on one side of the plurality of first cone blocks, and the second cone blocks and the first cone blocks are provided with cavities on the side away from the connecting plate, and the connecting plate is provided with an infusion channel inside; A driving unit is located inside the thermal insulation sleeve and is used to adjust the use positions of the connecting plate and the first cone block; Multiple limit adjustment units are installed inside the round seat and located inside the insulation pipe sleeve; A plurality of protective sealing layers are installed on the outer circumference of the plurality of round seats, and the protective sealing layers are sleeved on the outer circumference of the insulation pipe sleeve; A limiting slide plate is arranged between the two connecting plates; Multiple sets of racks are installed on one side of the limit slide, and each set of racks is provided with two, and the use distance between the two racks in each set is different; The connecting plate is driven to move by the driving unit. During this process, the first first cone block on the left side will drive the spiral nozzle to adjust its use position inside the round seat through the first limit adjustment unit on the left side. After that, the driving unit continues to drive the connecting plate to move, and will adjust the use position of the spiral nozzle on the spray main pipe inside the round seat. Then the driving unit continues to drive the connecting plate to move, and the first first cone block on the right side will drive the spiral nozzle to adjust its use position inside the round seat through the first limit adjustment unit on the right side. Finally, the driving unit continues to drive the connecting plate to move, and the first first cone block on the left side will drive the spiral nozzle to adjust its use position inside the round seat through the second limit adjustment unit on the left side. The spiral nozzles at different positions are adjusted separately to change the exhaust gas spraying treatment effect of the spiral nozzles at different positions.

[0007] Preferably, the adjustment component further comprises: Multiple sets of connecting seats are symmetrically installed on both sides of the insulation pipe sleeve, and the outer peripheral side of the connecting seat is fixedly connected to the inner wall of the insulation pipe sleeve; Multiple sets of rectangular tooth plates are symmetrically installed on both sides of the insulation pipe sleeve, and the rectangular tooth plates are slidably connected to the inside of the connecting seat; Multiple sets of rollers are symmetrically installed on both sides of the insulation pipe sleeve, and one side of the roller is fixed to the outer wall of the rectangular tooth plate through a fixing rod; Preferably, the adjustment component further includes Multiple sets of rectangular slides are symmetrically installed on both sides of the insulation pipe sleeve, and the rectangular slides are installed inside the connecting seat; Multiple groups of springs are symmetrically installed on both sides of the rectangular tooth plate, and both sides of the springs are fixedly connected to the rectangular slide plate and the inner wall of the connecting seat respectively; Preferably, the driving unit comprises: Two first electric push rods are symmetrically distributed on one side of the inner side of the thermal insulation pipe sleeve; The annular slide is located inside the insulation pipe sleeve and is slidably connected to the outer peripheral side of the spray main pipe. One side of the annular slide is fixedly connected to the output end of the first electric push rod, and one side of the annular slide is fixedly connected to the limit slide and the connecting plate.

[0008] Preferably, the limit adjustment unit includes: A ring gear is rotatably connected to the outer peripheral side of the round seat; The annular block is rotatably connected to the inside of the round seat, and the outer circumference of the annular block is fixedly connected to the inner circumference of the ring gear; The outer circumference of the connecting frames on both sides is fixedly connected to the inner circumference of the annular block, and the inner circumferences of the two connecting frames are fixedly connected to the same circular seat; The fixing sleeve is installed inside the round seat through the fixing frame, and the fixing sleeve is arranged below the round seat, and the fixing sleeve has limited sliding grooves on both sides; The lead screw is rotatably connected to the interior of the fixed sleeve, and the top end of the lead screw extends to the outside of the fixed sleeve and is fixedly connected to the bottom of the circular seat. A reset assembly is provided on the top side of the lead screw for resetting the rotational position of the lead screw; The sliding sleeve is sleeved on the outer peripheral side of the screw, and the sliding sleeve is slidably connected to the inside of the fixed sleeve. The top of the sliding sleeve is connected to the outer peripheral side of the screw through the screw seat. Both sides of the screw seat are fixedly connected to the limit sliders. The limit sliders are slidably connected to the inside of the limit slide groove. The bottom of the sliding sleeve extends to the outer peripheral side of the fixed sleeve and is installed on the top of the spiral nozzle through the connecting frame. The annular slide, the connecting plate and the first cone block are driven to move by the first electric push rod. At this time, the first cone block on the left side will first contact the roller on the left side, and the roller drives the rectangular tooth plate to move. The linkage effect between the rectangular tooth plate and the annular gear is used to transmit power to the annular gear, so that the annular gear drives the annular block, the connecting frame, the circular seat and the screw to rotate. Then, the linkage effect between the screw and the screw seat is used to transmit power to the screw seat, so that the screw seat drives the sliding sleeve and the spiral nozzle to move downward, and the use position of the spiral nozzle relative to the circular seat is adjusted. By adjusting the extension distance of the spiral nozzle relative to the inside of the circular seat, the constraint effect of the inner wall of the circular seat on the spiral nozzle is assisted in reducing, so that the liquid film / droplets output by the spiral nozzle can be more freely diffused radially, forming a wider spray cone angle, which can better wet the tower wall and filler, reduce the "dry area" and wall flow, and improve the tower section utilization rate and treatment effect.

[0009] Preferably, the parallel adjustment component includes: An annular fixing plate is fixedly connected to the inner circumference of the thermal insulation pipe sleeve, and a first rectangular through hole is opened on one side of the inner portion of the annular fixing plate; A liquid sac is fixedly connected to one side of the annular fixing plate and is disposed on a side away from the connecting plate. The cross-section of the liquid sac is annular, and a second rectangular through hole is formed on one side of the interior of the liquid sac. The second rectangular through hole and the first rectangular through hole are coaxially aligned. The liquid sac is connected to the infusion channel inside the connecting plate via an infusion hose. An annular plate is installed on one side of the liquid sac and is slidably connected to the inside of the thermal insulation sleeve; Two second push rods are distributed in a circular array on one side of the annular plate, and one side of the second push rod is fixedly connected to the inner wall of the insulation sleeve, and one end of the output shaft of the second push rod is fixedly connected to the outer wall of the annular plate; Preferably, the parallel adjustment component further includes: A plurality of third cone blocks are respectively slidably connected to the interior of the first cone block and the second cone block, and an auxiliary liquid sac is fixedly connected to one side of the third cone block, and the other side of the auxiliary liquid sac is fixedly connected to the inner wall of the first cone block and the second cone block, and the auxiliary liquid sac is connected to the infusion channel inside the connecting plate through a pipe; Multiple groups of limit springs are symmetrically installed on both sides of the auxiliary liquid sac, and both sides of the limit springs are fixedly connected to the inner walls of the third cone block, the first cone block and the second cone block respectively; According to actual needs, the second push rod is started, and the annular plate is driven by the second push rod to squeeze the liquid sac, and the liquid inside the liquid sac is transported to the infusion channel inside the connecting plate through the infusion tube, and then transported to the auxiliary liquid sac through the pipeline, so that the auxiliary liquid sac drives the third cone block to move toward the outside of the first cone block and the second cone block, and the use distance of the roller and the rectangular tooth plate is adjusted, and the telescopic height of the spiral nozzle is further adjusted, thereby affecting the treatment effect of the high-temperature exhaust gas of the device, thereby ensuring the treatment effect of the device.

[0010] Preferably, it also includes: The cleaning slip ring is sleeved on the outer peripheral side of the spiral nozzle and is slidably connected to the inside of the round seat; The sealing slip ring is arranged above the cleaning slip ring, and the sealing slip ring is sleeved on the outer peripheral side of the spiral nozzle; When the spiral nozzle moves up and down, the sealing slip ring ensures the sealing effect between the round seat and the spiral nozzle, while the cleaning slip ring cleans the use gap between the round seat and the spiral nozzle during the up and down movement, ensuring the self-cleaning effect of the device during use.

[0011] Preferably, it also includes: The recovery box is connected to one side of the bottom of the treatment tower, and the bottom of the recovery box is fixedly connected to the bottom of the treatment tower through a support; Circulation pump, the input end of which is connected to the recovery tank through a liquid extraction pipeline; The delivery main pipe is connected to the output end of the circulation pump, and the delivery main pipe is connected to the spray main pipe through a pipe joint; The circulation pump sprays the treatment liquid inside the recovery tank into the treatment tower through the delivery main pipe, spray main pipe, spray branch pipe, round seat and spiral nozzle, and collides, contacts and reacts with the exhaust gas inside the treatment tower.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: 1. In the present invention, the initial use position between different first cone blocks and racks is set by setting an adjustment component, and the first electric push rod and the annular slide plate are used to cooperate with the infrared sensor to monitor the temperature of the exhaust gas transport inside the treatment tower, and the extension distance of the spiral nozzles at different positions relative to the inside of the round seat is adjusted to achieve independent partition height adjustment of multiple spiral nozzles in the treatment tower. This device only requires a single drive source to achieve partitioned, independent, sequential adjustment or overall coordinated adjustment of multiple spiral nozzles to adapt to the spatial differences in the working conditions in the tower. The inner wall of the round seat will help reduce the constraint effect on the extended spiral nozzle, so that the liquid film / droplets output by the spiral nozzle can be more freely diffused radially to form a wider spray cone angle, thereby improving the cross-sectional utilization rate, filler wetting uniformity and exhaust gas treatment effect in the tower. The first electric push rod drives the annular slide plate and the connecting plate to move, so that the second cone blocks on the left and right sides will simultaneously squeeze the rollers on the left and right sides to synchronously adjust the overall spray angle inside the treatment tower, thereby achieving overall coordinated adjustment of the spiral nozzle height, quickly responding to changes in the overall working conditions, and greatly improving the exhaust gas treatment effect of the device during use.

[0013] 2. In the present invention, a parallel adjustment component is set up, and the second push rod drives the annular plate to transport the liquid inside the liquid sac to the inside of the auxiliary liquid sac, so that the auxiliary liquid sac drives the third cone block to move toward the outside of the first cone block and the second cone block, and the use distance of the roller and the rectangular tooth plate is adjusted, and the telescopic height of the spiral nozzle is further adjusted remotely, so that the device can flexibly optimize the spray coverage, mixing efficiency and residence time according to the real-time exhaust gas flow, temperature or composition changes, thereby significantly improving the adaptability of the device to complex and changeable working conditions and the overall exhaust gas treatment efficiency and stability.

[0014] 3. In the present invention, by providing a cleaning slip ring, the sealing slip ring ensures the sealing effect between the round seat and the spiral nozzle during the up and down movement of the spiral nozzle. The cleaning slip ring cleans the use gap between the round seat and the spiral nozzle during the up and down movement, which significantly improves the sealing reliability and movement smoothness of the device, thereby improving the adaptability and maintenance-free performance of the device under harsh working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention; Figure 2 This is a schematic diagram of the internal three-dimensional structure of the treatment tower of the present invention; Figure 3 This is a schematic diagram of the overall three-dimensional structure of the spray main pipe and the insulation pipe sleeve in the present invention; Figure 4 This is a schematic diagram of a partial internal three-dimensional structure of the thermal insulation pipe sleeve of the present invention; Figure 5 For the present invention Figure 4 A local enlarged structural diagram of point A; Figure 6 Schematic diagram of the internal three-dimensional structure of the thermal insulation pipe sleeve of the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of the partially enlarged structure at point B; Figure 8 For the present invention Figure 6 A schematic diagram of the partially enlarged structure at point C; Figure 9 This is a schematic diagram of the overall three-dimensional structure of the round seat in the present invention; Figure 10 This is a schematic diagram of the overall disassembled three-dimensional structure of the round seat and spiral nozzle in the present invention; Figure 11 It is a schematic diagram of the overall three-dimensional structure of the lead screw in the present invention.

[0016] Legend: 1. Treatment tower; 2. Recovery box; 3. Circulation pump; 4. Delivery main pipe; 5. Spray main pipe; 6. Insulation pipe sleeve; 7. Adjustment assembly; 701. First electric push rod; 702. Annular slide; 703. Connecting plate; 704. First cone block; 705. Second cone block; 706. Roller; 707. Rectangular gear plate; 708. Ring gear; 709. Ring block; 710. Connecting frame; 711. Round seat; 712. Screw; 713. Sliding sleeve; 714. Fixed sleeve; 715. Protective sealing layer; 716. Connecting seat; 717. Limiting slide; 718. Rack; 8. Parallel adjustment assembly; 801. Annular fixed plate; 802. Liquid sac; 803. Annular plate; 804. Second push rod; 805. Third cone block; 9. Round seat; 10. Spiral nozzle; 11. Cleaning slip ring. DETAILED DESCRIPTION

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0018] See also Figures 1-11 The present invention provides a technical solution: a high-temperature exhaust gas treatment device for a biomass combustion boiler, comprising a treatment tower 1, a demister is provided on the top side of the treatment tower 1, and a plurality of filter screens are provided below the demister, and further comprising: Multiple spray main pipes 5 are installed above the multiple filter screens, and multiple spray branch pipes are connected to both sides of the spray main pipe 5; The thermal insulation pipe sleeve 6 is sleeved on the outer periphery of the spray main pipe 5 and the spray branch pipe. The thermal insulation pipe sleeve 6 has an inner cavity and a plurality of first through holes on the bottom of the thermal insulation pipe sleeve 6. A plurality of round seats 9 are equidistantly installed on the bottom side of the spray main pipe 5 and the spray branch pipe, and the round seats 9 are located inside the first through hole, and the top of the round seats 9 is connected to the spray main pipe 5 and the spray branch pipe; A plurality of spiral nozzles 10 are installed on the bottom side of the round seat 9; The adjustment component 7 is installed inside the insulation pipe sleeve 6 and is used to adjust the use positions of the multiple spiral nozzles 10 separately and synchronously to control the output spray angle and range of the spiral nozzles 10; The parallel adjustment component 8 is installed inside the insulation pipe sleeve 6 and is located on one side of the adjustment component 7, and is used to further adjust the movement stroke of the spiral nozzle 10; In the existing technology, the contact range between the water spray system and the exhaust gas is fixed during use. When the air inlet pipe transports the high-temperature exhaust gas to the bottom space of the tower, the exhaust gas concentration in the area may change as the high-temperature exhaust gas rises in the tower. The fixed spray system may cause some exhaust gas to escape, thereby affecting the overall treatment effect of the device. This embodiment of the present invention can solve the above problems. The specific implementation method is as follows: first, the treatment tower 1 is installed to a suitable position, and then the biomass combustion boiler exhaust gas after heat recovery is transported to the bottom side of the treatment tower 1. After that, the treatment liquid is sprayed into the treatment tower 1 through the delivery main pipe 4, the spray main pipe 5, the spray branch pipe, the round seat 9 and the spiral nozzle 10, and collides, contacts and reacts with the exhaust gas inside the treatment tower 1. The exhaust gas carrying part of the heat entering the treatment tower 1 is monitored by an external infrared sensor, and then the adjustment component 7 adjusts the spiral nozzles 10 at different positions separately or synchronously, changing the exhaust gas spraying treatment effect of the spiral nozzles 10 at different positions at different positions, thereby greatly improving the flexibility and treatment effect of the spiral nozzle 10 during use. Afterwards, the use stroke of the spiral nozzle 10 is further adjusted by the parallel adjustment component 8 according to actual needs, further ensuring the overall treatment effect of the device.

[0019] As an optional embodiment, the adjustment component 7 includes: Two connecting plates 703 are symmetrically installed on both sides of the interior of the insulation pipe sleeve 6, and the connecting plates 703 are located on the bottom side of the interior of the insulation pipe sleeve 6; Two groups of first cone blocks 704 are fixed to one side of the outside of the connecting plate 703, and the two groups of first cone blocks 704 are arranged on opposite sides of the two connecting plates 703. Each group of first cone blocks 704 is provided with multiple first cone blocks 704, and the multiple first cone blocks 704 are distributed on the connecting plate 703. The two groups of first cone blocks 704 are arranged in a cross array; Two groups of second cone blocks 705 are symmetrically connected to opposite sides of the connecting plate 703 at equal distances. Each group of second cone blocks 705 is provided with multiple second cone blocks 705, and the multiple second cone blocks 705 are arranged on the side of the multiple first cone blocks 704. The second cone blocks 705 and the first cone blocks 704 are both provided with cavities on the side away from the connecting plate 703. The connecting plate 703 is internally provided with an infusion channel. The driving unit is located inside the thermal insulation sleeve 6 and is used to adjust the use position of the connecting plate 703 and the first cone block 704; Multiple limit adjustment units are installed inside the round seat 9 and located inside the insulation pipe sleeve 6; A plurality of protective sealing layers 715 are installed on the outer circumference of the plurality of round seats 9, and the protective sealing layers 715 are sleeved on the outer circumference of the insulation pipe sleeve 6; A limiting slide plate 717 is provided between the two connecting plates 703; Multiple sets of racks 718 are installed on one side of the limiting slide 717, and each set of racks 718 is provided with two, and the use distance between the two racks 718 in each set is different; The connecting plate 703 is driven to move by the driving unit. During this process, the first first cone block 704 on the left side will drive the spiral nozzle 10 to adjust its use position inside the round seat 9 through the first limit adjustment unit on the left side. After that, the driving unit continues to drive the connecting plate 703 to move, and will adjust the use position of the spiral nozzle 10 on the spray main pipe 5 inside the round seat 9. Then the driving unit continues to drive the connecting plate 703 to move, and the first first cone block 704 on the right side will drive the spiral nozzle 10 to adjust its use position inside the round seat 9 through the first limit adjustment unit on the right side. Finally, the driving unit continues to drive the connecting plate 703 to move, and the first first cone block 704 on the left side will drive the spiral nozzle 10 to adjust its use position inside the round seat 9 through the second limit adjustment unit on the left side. The spiral nozzles 10 at different positions are adjusted separately to change the exhaust gas spraying treatment effect of the spiral nozzles 10 at different positions.

[0020] As an optional embodiment, the adjustment component 7 further includes: Multiple sets of connecting seats 716 are symmetrically installed on both sides of the interior of the insulation pipe sleeve 6, and the outer periphery of the connecting seats 716 is fixedly connected to the inner wall of the insulation pipe sleeve 6; Multiple sets of rectangular tooth plates 707 are symmetrically installed on both sides of the interior of the insulation pipe sleeve 6, and the rectangular tooth plates 707 are slidably connected to the interior of the connecting seat 716; Multiple sets of rollers 706 are symmetrically installed on both sides of the interior of the insulation pipe sleeve 6, and one side of the roller 706 is fixed to one side of the outer wall of the rectangular tooth plate 707 through a fixing rod; As an optional embodiment, the adjustment component 7 further includes Multiple sets of rectangular slides are symmetrically installed on both sides of the interior of the insulation pipe sleeve 6, and the rectangular slides are installed inside the connecting seat 716; Multiple sets of springs are symmetrically mounted on both sides of the rectangular tooth plate 707, and both sides of the springs are fixedly connected to the rectangular slide and the inner wall of the connecting seat 716 respectively; As an optional embodiment, the driving unit includes: Two first electric push rods 701 are symmetrically distributed on one side of the interior of the insulation pipe sleeve 6; The annular slide 702 is located inside the insulation pipe sleeve 6, and the annular slide 702 is slidably connected to the outer peripheral side of the spray main pipe 5. One side of the annular slide 702 is fixedly connected to the output end of the first electric push rod 701, and one side of the annular slide 702 is fixedly connected to the limiting slide 717 and the connecting plate 703.

[0021] As an optional embodiment, the limit adjustment unit includes: The ring gear 708 is rotatably connected to the outer peripheral side of the round seat 9; The annular block 709 is rotatably connected to the inside of the round seat 9, and the outer circumference of the annular block 709 is fixedly connected to the inner circumference of the ring gear 708; The outer periphery of the connecting frames 710 on both sides is fixedly connected to the inner periphery of the annular block 709, and the inner periphery of the two connecting frames 710 is fixedly connected to the same circular seat 711; The fixing sleeve 714 is installed inside the round seat 9 through a fixing frame, and the fixing sleeve 714 is arranged below the round seat 711. The fixing sleeve 714 has limited sliding grooves on both sides. The lead screw 712 is rotatably connected to the interior of the fixed sleeve 714, and the top end of the lead screw 712 extends to the outside of the fixed sleeve 714 and is fixedly connected to the bottom of the circular seat 711. A reset assembly is provided on the top side of the lead screw 712 for resetting the rotational position of the lead screw 712; The sliding sleeve 713 is sleeved on the outer peripheral side of the screw 712, and the sliding sleeve 713 is slidably connected to the inside of the fixed sleeve 714. The top of the sliding sleeve 713 is connected to the outer peripheral side of the screw 712 through the screw seat. Both sides of the screw seat are fixedly connected to the limit slider, and the limit slider is slidably connected to the inside of the limit slide groove. The bottom of the sliding sleeve 713 extends to the outer peripheral side of the fixed sleeve 714 and is installed on the top of the spiral nozzle 10 through the connecting frame. The first electric push rod 701 drives the annular slide 702, the connecting plate 703 and the first cone block 704 to move. At this time, the first cone block 704 on the left side will first contact the roller 706 on the left side, and the roller 706 drives the rectangular tooth plate 707 to move. The linkage effect between the rectangular tooth plate 707 and the ring gear 708 is used to transmit power to the ring gear 708, so that the ring gear 708 drives the annular block 709, the connecting frame 710, the circular seat 711 and the screw 712 to rotate. Then, the screw 712 and the screw seat are connected to each other. The linkage effect between them transmits power to the screw seat, so that the screw seat drives the sliding sleeve 713 and the spiral nozzle 10 to move downward, and adjusts the use position of the spiral nozzle 10 relative to the round seat 9. By adjusting the protruding distance of the spiral nozzle 10 relative to the inside of the round seat 9, it helps to reduce the constraint effect of the inner wall of the round seat 9 on the spiral nozzle 10, so that the liquid film / droplets output by the spiral nozzle 10 can be more freely diffused in the radial direction, forming a wider spray cone angle, which can better wet the tower wall and filler, reduce the "dry area" and wall flow, and improve the tower section utilization rate and treatment effect.

[0022] As an optional embodiment, the parallel adjustment component 8 includes: The annular fixing plate 801 is fixedly connected to the inner circumference of the thermal insulation pipe sleeve 6, and a first rectangular through hole is opened on one side of the inner portion of the annular fixing plate 801; Liquid sac 802 is fixedly connected to one side of annular fixing plate 801 and is located on the side away from connecting plate 703. The cross-section of liquid sac 802 is annular, and a second rectangular through hole is defined on one side of the interior of liquid sac 802. The second rectangular through hole and the first rectangular through hole are coaxial. Liquid sac 802 is connected to the infusion channel inside connecting plate 703 via an infusion hose. The annular plate 803 is mounted on one side of the liquid capsule 802 and is slidably connected to the interior of the insulation sleeve 6; Two second push rods 804 are distributed in a circular array on one side of the annular plate 803, and one side of the second push rod 804 is fixedly connected to the inner wall of the insulation sleeve 6, and one end of the output shaft of the second push rod 804 is fixedly connected to the outer wall of the annular plate 803; As an optional embodiment, the parallel adjustment component 8 further includes: Multiple third cone blocks 805 are slidably connected to the inside of the first cone block 704 and the second cone block 705, and an auxiliary liquid sac is fixedly connected to one side of the third cone block 805, and the other side of the auxiliary liquid sac is fixedly connected to the inner wall of the first cone block 704 and the second cone block 705. The auxiliary liquid sac is connected to the infusion channel inside the connecting plate 703 through a pipe; Multiple groups of limit springs are symmetrically installed on both sides of the auxiliary liquid sac, and the two sides of the limit springs are fixedly connected to the inner walls of the third cone block 805, the first cone block 704 and the second cone block 705 respectively; According to actual needs, the second push rod 804 is started, and the annular plate 803 is driven by the second push rod 804 to squeeze the liquid sac 802, and the liquid inside the liquid sac 802 is transported to the infusion channel inside the connecting plate 703 through the infusion tube, and then transported to the auxiliary liquid sac through the pipeline, so that the auxiliary liquid sac drives the third cone block 805 to move toward the outside of the first cone block 704 and the second cone block 705, and adjusts the use distance of the roller 706 and the rectangular tooth plate 707, and further adjusts the telescopic height of the spiral nozzle 10, thereby affecting the treatment effect of the high-temperature exhaust gas of the device, thereby ensuring the treatment effect of the device.

[0023] As an optional embodiment, it also includes: The cleaning slip ring 11 is sleeved on the outer peripheral side of the spiral nozzle 10, and the cleaning slip ring 11 is slidably connected to the inside of the round seat 9; The sealing slip ring is arranged above the cleaning slip ring 11 and is sleeved on the outer peripheral side of the spiral nozzle 10; During the up and down movement of the spiral nozzle 10, the sealing slip ring ensures the sealing effect between the round seat 9 and the spiral nozzle 10, and the cleaning slip ring 11 cleans the use gap between the round seat 9 and the spiral nozzle 10 during the up and down movement, ensuring the self-cleaning effect of the device during use.

[0024] As an optional embodiment, it also includes: The recovery box 2 is connected to one side of the bottom of the treatment tower 1, and the bottom of the recovery box 2 is fixedly connected to the bottom of the treatment tower 1 through a support; The input end of the circulation pump 3 is connected to the recovery tank 2 through a liquid extraction pipeline; The delivery main pipe 4 is connected to the output end of the circulation pump 3, and the delivery main pipe 4 is connected to the spray main pipe 5 through a pipe joint; The circulation pump 3 sprays the treatment liquid in the recovery tank 2 into the treatment tower 1 through the delivery main pipe 4, the spray main pipe 5, the spray branch pipe, the round seat 9 and the spiral nozzle 10, and collides with and reacts with the exhaust gas in the treatment tower 1.

[0025] Working principle: When in use, first install the treatment tower 1 to a suitable position, then transport the waste gas from the biomass combustion boiler after heat recovery to the bottom side of the treatment tower 1. After that, the circulation pump 3 sprays the treatment liquid in the recovery tank 2 into the treatment tower 1 through the delivery main pipe 4, the spray main pipe 5, the spray branch pipe, the round seat 9 and the spiral nozzle 10, where the treatment liquid collides with and reacts with the waste gas in the treatment tower 1. The waste gas carrying some heat entering the treatment tower 1 is monitored by an external infrared sensor. According to actual needs, the first electric push rod 701 is started, and the annular slide 702, the connecting plate 703 and the first cone block 704 are moved by the first electric push rod 701. At this time, the first cone block 704 on the left side will first contact the roller 706 on the left side, and the roller 706 drives the rectangular tooth plate 707 to move. The linkage effect between the rectangular tooth plate 707 and the ring gear 708 is used to transmit power to the ring gear 708, so that the ring gear 708 drives the annular block 709, the connecting frame 710, the circular seat 711 and the screw 712 to rotate, and then the screw 712 and the screw seat are connected to each other. The linkage effect transmits power to the screw seat, causing the screw seat to drive the sliding sleeve 713 and the spiral nozzle 10 to move downward, adjusting the use position of the spiral nozzle 10 relative to the round seat 9, and then the first electric push rod 701 continuously drives the limiting slide 717 to move. At this time, the rack 718 will engage with the ring gear 708 on the outer circumference of the round seat 9 on the spray main pipe 5. During this process, the first cone block 704 releases the squeezing effect on the roller 706, and the ring gear 708 on the outer circumference of the round seat 9 on the spray main pipe 5 will adjust the use height of the spiral nozzle 10 on the spray main pipe 5 during the rotation process; After that, the first electric push rod 701 continues to drive the annular slide 702 to move, and the first cone block 704 on the right side squeezes the roller 706 on the right side. At this time, the rack 718 is out of engagement with the ring gear 708, and the rectangular tooth plate 707 on the right side drives the ring gear 708 on the right side to rotate, thereby adjusting the spiral nozzle 10 on the right side. Similarly, the first electric push rod 701 continues to drive the annular slide 702 to move, and the first cone block 704 on the right side releases the squeezing effect on the roller 706 on the right side, while the first cone block 704 in the middle of the left side releases the squeezing effect on the roller 706 on the right side. By squeezing the roller 706, the use position of the spiral nozzle 10 in the middle position on the left side can be adjusted. By initially setting the use positions between different first cone blocks 704 and racks 718, and through the action of the first electric push rod 701 and the annular slide 702, in conjunction with the infrared sensor to monitor the temperature of the exhaust gas transport inside the treatment tower 1, the spiral nozzles 10 in different positions are adjusted respectively to adjust the spray range and the particle size of the spray liquid in different areas of the treatment tower 1, thereby adaptively adjusting and treating the exhaust gas in different areas of the treatment tower 1; When the treatment tower 1 needs to adjust the spraying effect of the spiral nozzle 10 as a whole, the first electric push rod 701 is continuously moved. At this time, the second cone blocks 705 on the left and right sides will squeeze the rollers 706 on the left and right sides at the same time, and the rack 718 will engage with the ring gear 708 at the same time, and the use position of the spiral nozzle 10 relative to the round seat 9 will be adjusted to adjust the overall spraying angle inside the treatment tower 1. During the up and down movement of the spiral nozzle 10, the sealing slip ring ensures the sealing effect between the round seat 9 and the spiral nozzle 10, and the cleaning slip ring 11 cleans the use gap between the round seat 9 and the spiral nozzle 10 during the up and down movement. According to actual needs, the second push rod 804 is started, and the annular plate 803 is driven by the second push rod 804 to squeeze the liquid sac 802, and the liquid inside the liquid sac 802 is transported to the infusion channel inside the connecting plate 703 through the infusion tube, and then transported to the auxiliary liquid sac through the pipeline, so that the auxiliary liquid sac drives the third cone block 805 to move toward the outside of the first cone block 704 and the second cone block 705, and the use distance of the roller 706 and the rectangular tooth plate 707 is adjusted, and the telescopic height of the spiral nozzle 10 is further adjusted.

[0026] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A high-temperature exhaust gas treatment device for a biomass combustion boiler, comprising a treatment tower (1), wherein a demister is provided on the top side of the treatment tower (1), and a plurality of filter screens are provided below the demister, characterized in that: Also includes: A plurality of spray main pipes (5) are installed above the plurality of filter screens, and a plurality of spray branch pipes are connected to both sides of the spray main pipes (5); An insulating pipe sleeve (6) is sleeved on the outer periphery of the spray main pipe (5) and the spray branch pipe, an inner cavity is provided inside the insulating pipe sleeve (6), and a plurality of first through holes are provided on the inner bottom side of the insulating pipe sleeve (6); A plurality of round seats (9) are equidistantly mounted on the bottom sides of the spray main pipe (5) and the spray branch pipe, and the round seats (9) are located inside the first through hole, and the top ends of the round seats (9) are connected to the spray main pipe (5) and the spray branch pipe; A plurality of spiral nozzles (10) are mounted on the inner bottom side of the round seat (9); An adjustment component (7) is installed inside the thermal insulation sleeve (6) and is used to adjust the use positions of the plurality of spiral nozzles (10) individually and synchronously to control the output spray angle and range of the spiral nozzles (10); The parallel adjustment component (8) is installed inside the thermal insulation pipe sleeve (6) and is located on one side of the adjustment component (7) for further adjusting the movement stroke of the spiral nozzle (10).

2. A high-temperature exhaust gas treatment device for a biomass combustion boiler according to claim 1, characterized in that: The regulating component (7) comprises: Two connecting plates (703) are symmetrically mounted on both sides of the interior of the thermal insulation pipe sleeve (6), and the connecting plates (703) are located on the bottom side of the interior of the thermal insulation pipe sleeve (6); Two groups of first cone blocks (704) are fixed to one side of the outside of the connecting plate (703), and the two groups of first cone blocks (704) are arranged on opposite sides of the two connecting plates (703), wherein each group of first cone blocks (704) is provided with a plurality of first cone blocks, and the plurality of first cone blocks (704) are distributed on the connecting plate (703), and the two groups of first cone blocks (704) are distributed in a cross array; Two groups of second cone blocks (705) are symmetrically connected to opposite sides of the connecting plate (703) at equal distances, wherein each group of second cone blocks (705) is provided with a plurality of second cone blocks (705), and the plurality of second cone blocks (705) are provided on one side of the plurality of first cone blocks (704), and the second cone blocks (705) and the first cone blocks (704) are provided with cavities on the side away from the connecting plate (703), and the connecting plate (703) is provided with an infusion channel inside; A drive unit, located inside the thermal insulation sleeve (6), for adjusting the use positions of the connecting plate (703) and the first cone block (704); A plurality of limit adjustment units are installed inside the round seat (9) and located inside the thermal insulation pipe sleeve (6); A plurality of protective sealing layers (715) are installed on the outer peripheral sides of the plurality of round seats (9), and the protective sealing layers (715) are sleeved on the outer peripheral side of the thermal insulation pipe sleeve (6); A limiting slide plate (717) is provided between the two connecting plates (703); Multiple groups of racks (718) are installed on one side of the limiting slide (717), and each group of racks (718) is provided with two, and the use distance between the two racks (718) in each group is different.

3. The high-temperature exhaust gas treatment device for a biomass combustion boiler according to claim 2, characterized in that: The regulating component (7) further comprises: Multiple groups of connecting seats (716) are symmetrically installed on both sides of the interior of the thermal insulation pipe sleeve (6), and the outer peripheral side of the connecting seat (716) is fixedly connected to the inner wall of the thermal insulation pipe sleeve (6); A plurality of sets of rectangular tooth plates (707) are symmetrically mounted on both sides of the interior of the thermal insulation pipe sleeve (6), and the rectangular tooth plates (707) are slidably connected to the interior of the connecting seat (716); Multiple groups of rollers (706) are symmetrically mounted on both sides of the interior of the thermal insulation pipe sleeve (6), and one side of the rollers (706) is fixed to one side of the outer wall of the rectangular tooth plate (707) via a fixing rod.

4. The high-temperature exhaust gas treatment device for a biomass combustion boiler according to claim 3, characterized in that: The regulating component (7) also includes A plurality of sets of rectangular slides are symmetrically mounted on both sides of the interior of the insulation pipe sleeve (6), and the rectangular slides are mounted inside the connecting seat (716); Multiple groups of springs are symmetrically mounted on both sides of the rectangular tooth plate (707), and both sides of the springs are fixedly connected to the rectangular slide plate and the inner wall of the connecting seat (716) respectively.

5. The high-temperature exhaust gas treatment device for a biomass combustion boiler according to claim 2, characterized in that: The driving unit includes: Two first electric push rods (701) are symmetrically distributed on one side of the interior of the thermal insulation sleeve (6); An annular slide (702) is located inside the thermal insulation pipe sleeve (6), and the annular slide (702) is slidably connected to the outer peripheral side of the spray main pipe (5), one side of the annular slide (702) is fixedly connected to the output end of the first electric push rod (701), and one side of the annular slide (702) is fixedly connected to the limit slide (717) and the connecting plate (703).

6. The high-temperature exhaust gas treatment device for a biomass combustion boiler according to claim 2, characterized in that: The limit adjustment unit includes: A ring gear (708) is rotatably connected to the outer peripheral side of the round seat (9); The annular block (709) is rotatably connected to the inside of the round seat (9), and the outer peripheral side of the annular block (709) is fixedly connected to the inner peripheral side of the ring gear (708); The outer peripheral sides of the connecting frames (710) on both sides are fixedly connected to the inner peripheral side of the annular block (709), and the inner peripheral sides of the two connecting frames (710) are fixedly connected to the same circular seat (711); The fixing sleeve (714) is installed inside the round seat (9) through a fixing frame, and the fixing sleeve (714) is arranged below the round seat (711), and limiting sliding grooves are provided on both sides of the fixing sleeve (714); A lead screw (712) is rotatably connected to the interior of the fixed sleeve (714), and the top end of the lead screw (712) extends to the outside of the fixed sleeve (714) and is fixedly connected to the bottom of the circular seat (711). A reset assembly is provided on the top side of the interior of the lead screw (712) for resetting the rotational position of the lead screw (712); The sliding sleeve (713) is sleeved on the outer peripheral side of the screw (712), and the sliding sleeve (713) is slidably connected to the inside of the fixed sleeve (714). The top of the sliding sleeve (713) is connected to the outer peripheral side of the screw (712) through the screw seat. The two sides of the screw seat are fixedly connected to the limiting slider, and the limiting slider is slidably connected to the inside of the limiting slide groove. The bottom of the sliding sleeve (713) extends to the outer peripheral side of the fixed sleeve (714) and is installed on the top of the spiral nozzle (10) through the connecting frame.

7. The high-temperature exhaust gas treatment device for a biomass combustion boiler according to claim 2, characterized in that: The parallel adjustment component (8) includes: An annular fixing plate (801) is fixedly connected to the inner circumference of the thermal insulation pipe sleeve (6), and a first rectangular through hole is opened on one side of the inner portion of the annular fixing plate (801); A liquid capsule (802) is fixedly connected to one side of the annular fixing plate (801), and the liquid capsule (802) is arranged on a side away from the connecting plate (703). The cross-sectional shape of the liquid capsule (802) is set to be annular, and a second rectangular through hole is opened on one side of the interior of the liquid capsule (802). The second rectangular through hole and the first rectangular through hole are located on the same axis. The liquid capsule (802) is connected to the infusion channel inside the connecting plate (703) through an infusion hose. An annular plate (803) is mounted on one side of the liquid capsule (802), and the annular plate (803) is slidably connected to the interior of the thermal insulation sleeve (6); Two second push rods (804) are distributed in a circular array on one side of the annular plate (803), and one side of the second push rod (804) is fixedly connected to the inner wall of the thermal insulation sleeve (6), and one end of the output shaft of the second push rod (804) is fixedly connected to the outer wall of the annular plate (803).

8. The high-temperature exhaust gas treatment device for a biomass combustion boiler according to claim 7, characterized in that: The parallel adjustment component (8) further includes: A plurality of third cone blocks (805) are respectively slidably connected to the inside of the first cone block (704) and the second cone block (705), and a secondary liquid sac is fixedly connected to one side of the third cone block (805), and the other side of the secondary liquid sac is fixedly connected to the inner wall of the first cone block (704) and the second cone block (705), and the secondary liquid sac is connected to the infusion channel inside the connecting plate (703) through a pipeline; Multiple groups of limit springs are symmetrically installed on both sides of the auxiliary liquid sac, and both sides of the limit springs are fixedly connected to the inner walls of the third cone block (805), the first cone block (704) and the second cone block (705), respectively.

9. The high-temperature exhaust gas treatment device for a biomass combustion boiler according to claim 1, characterized in that: Also includes: A cleaning slip ring (11) is sleeved on the outer peripheral side of the spiral nozzle (10), and the cleaning slip ring (11) is slidably connected to the inside of the round seat (9); The sealing slip ring is arranged above the cleaning slip ring (11), and the sealing slip ring sleeve is arranged on the outer peripheral side of the spiral nozzle (10).

10. The high-temperature exhaust gas treatment device for a biomass combustion boiler according to claim 1, characterized in that: Also includes: The recovery box (2) is connected to one side of the bottom of the treatment tower (1), and the bottom of the recovery box (2) is fixedly connected to the bottom of the treatment tower (1) via a support; A circulation pump (3), the input end of which is connected to the recovery tank (2) via a liquid extraction pipeline; The delivery main pipe (4) is connected to the output end of the circulation pump (3), and the delivery main pipe (4) is connected to the spray main pipe (5) through a pipe joint.

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