Flue gas dust removal device for thermal power plant

Abstract

The utility model relates to the technical field of thermal power generation, in particular to a flue gas dust removal device for a thermal power plant. According to the utility model, large-particle dust and impurities in flue gas are preliminarily filtered through the dust filtering plate; water is conveyed into the water pipe through the water pump and is atomized and sprayed out through the multiple atomizing nozzles, dust in the filtered flue gas is further settled, and the flue gas subjected to double treatment is discharged through the connecting pipe at the other end or conveyed to the next working procedure to be continuously treated. And when the dust filtering plate needs to be cleaned, a worm is rotated to drive a worm gear to rotate, so that a water pipe and an atomizing nozzle are driven to adjust the angle, and the dust filtering plate is backwashed through water flow, so that the dust filtering plate can be quickly cleaned, and convenience and rapidness are realized. When the dust removal device is used, dust in smoke can be rapidly and thoroughly removed, meanwhile, the dust filtering plate can be automatically cleaned conveniently, and the filtering effect is guaranteed.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of thermal power generation, concretely to a flue gas dust removal device for thermal power plant. BACKGROUND

[0002] Thermal power generation is the main force of modern social electric power development, although now all countries in the world are developing various clean electric energy, but still far cannot replace the position of thermal power generation, thermal power plant burns coking coal to heat steam turbine, will inevitably produce a large amount of smoke containing harmful substances, these smoke cannot be directly discharged, needs to carry out dust removal treatment.

[0003] Through the search, the flue gas dust removal and purification device of a thermal power plant of announcement No. CN 207871786 U, including frame, set up on the frame purification box and set up on the frame exhaust fan, the air inlet of the exhaust fan is fixedly connected with the rear end of the purification box, the front end of the purification box is fixedly provided with a smoke inlet pipe, the top of the inside of the purification box is fixedly provided with a atomizing nozzle, one side of the purification box is provided with a water tank, the water tank is provided with a water inlet pipe, the water inlet pipe is installed with a valve, one side of the water tank is provided with a booster pump, the booster pump is connected with the water tank through pipeline, the water tank is provided with a water spraying pipe, the other end of the water spraying pipe is connected with the atomizing nozzle, a filter screen is vertically movably inserted in the purification box, the filter screen is behind the atomizing nozzle. The utility model has the advantages of good flue gas purification effect, convenient and the like.

[0004] But the above-mentioned device still has some deficiencies in the process of using, the filtering effect of dust in flue gas is poor, and dust is easy to adhere to the filter plate, causes the blockage, influences the subsequent filtration of flue gas, and the filter plate cannot be cleaned quickly, is inconvenient to use. UTILITY MODEL CONTENTS

[0005] The utility model discloses a flue gas dust removal device for thermal power plant, which solves the technical problems of poor filtering effect of dust in flue gas, easy adhesion of dust to the filter plate, blockage, and subsequent filtration of flue gas, and quick cleaning of the filter plate.

[0006] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions:

[0007] The utility model provides a kind of flue dust removal device for thermal power plant, including processing box;The inner wall of the processing box is fixedly connected with filter dust plate;The inside top wall of the processing box is fixedly connected with fixed plate;The surface of the fixed plate and the inner wall of the processing box are rotatably connected with rotating rod respectively;Water pipe is fixedly installed between two The lower surface of the water pipe is provided with a plurality of atomizing nozzles;One end of one rotating rod extends to the outside of the processing box and is connected with worm fixed sleeve;The side of the processing box is fixedly connected with two short plates;Worm is rotatably connected between two The worm and the worm gear are engaged with each other;The both ends of the processing box are communicated with connecting pipe, the upper surface of the processing box is installed with water pump, the water inlet end of the water pump is communicated with external water source, the water outlet end of the water pump and water delivery pipe are communicated;One end of the water delivery pipe extends to the inside of the processing box and is communicated between the water pipe.

[0008] Preferably, the surface of the filter dust plate is rotatably connected with a rotating rod; the surface of the rotating rod is fixedly sleeved with an impeller.

[0009] Preferably, the surface of the rotating rod is fixedly connected with two scrapers, and the two scrapers are tightly attached to the filter dust plate.

[0010] Preferably, the lower surface of the processing box is connected with a collection box; the surface of the collection box is provided with a movable door.

[0011] Preferably, each of the atomizing nozzles is provided with an adjusting knob.

[0012] Preferably, the lower surface of the processing box is connected with a drainage box; the lower surface of the drainage box is connected with a communication pipe; a drain pipe is installed on the communication pipe.

[0013] Preferably, the inner wall of the drain pipe is provided with internal threads; the outer surface of the communication pipe is provided with external threads; the drain pipe is threadedly sleeved on the outer surface of the communication pipe.

[0014] Preferably, the inner wall of the drain pipe is fixedly connected with a filter plate.

[0015] Preferably, the outer surface of the processing box is provided with a sealing door; a handle is provided on the sealing door; a lock is provided between the sealing door and the processing box.

[0016] Preferably, the water delivery pipe is a corrugated hose.

[0017] Compared with the prior art, the utility model has the following beneficial effects:

[0018] The utility model discloses a filter dust plate preliminary filters the big particle dust and impurity in the flue gas, and the water is sent to the inside of water pipe through water pump and is atomized and sprayed through multiple atomizing nozzles, further settlement of the dust in the filtered flue gas is carried out, and the flue gas after double processing is discharged through the connecting pipe of the other end or is transported to the next process to continue processing.

[0019] Further, the water and dust mixture generated by the settlement flows into the drainage box and is discharged through the drain pipe, and the water and dust mixture can be filtered through the filter plate, facilitating use. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and it should be understood that the following drawings only show some embodiments of the utility model, and therefore should not be regarded as the limitation to the scope, and for the ordinary skilled in the art, other related drawings can also be obtained according to these drawings without the creative labor.

[0021] Figure 1 It is the front structure schematic drawing of the utility model;

[0022] Figure 2 It is the back structure schematic drawing of the utility model;

[0023] Figure 3 It is the internal structure section view of the utility model;

[0024] Figure 4 It is the drainage box and drain pipe structure split drawing of the utility model.

[0025] In the drawing: 1, processing box;2, filter dust plate;3, fixed plate;4, rotating rod;5, water pipe;6, atomizing nozzle;7, worm wheel;8, short plate;9, worm;10, connecting pipe;11, rotating rod;12, impeller;13, scraper;14, collection box;15, movable door;16, drainage box;17, communication pipe;18, drain pipe;19, filter plate;20, sealing door;21, water pump;22, water delivery pipe. DETAILED DESCRIPTION

[0026] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. The components of the embodiments of the present application described and shown in the drawings can be arranged and designed in various different configurations.

[0027] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor fall within the scope of the present application.

[0028] It should be noted that: similar reference numbers and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0029] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "horizontal", "inner" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship when the product of the present application is usually placed, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0030] In addition, if the term "horizontal" appears, it does not mean that the component must be absolutely horizontal, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0031] In the description of the embodiments of the present application, it should also be noted that unless otherwise explicitly specified and limited, if the terms "arrangement", "installation", "connection", "connection" appear, they should be understood in a broad sense, for example, they can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0032] The present application will be described in further detail below in conjunction with the drawings:

[0033] The utility model provides a kind of flue gas dust removal device for thermal power plant, as shown in Figures 1-3 Fixedly connected with filter dust plate 2 between the inner wall of processing box 1;The inside top wall of processing box 1 is fixedly connected with fixed plate 3;The surface of fixed plate 3 and the inner wall of processing box 1 are rotatably connected with rotating rod 4 respectively;Water pipe 5 is fixedly installed between two rotating rods 4;The lower surface of water pipe 5 is provided with a plurality of atomizing nozzles 6;One end of one rotating rod 4 extends to the outside of processing box 1 and is fixedly sleeved with worm gear 7;The side of processing box 1 is fixedly connected with two short plates 8;Worm 9 is rotatably connected between two short plates 8;Worm 9 and worm gear 7 are engaged with each other;The both ends of processing box 1 are communicated with connecting pipe 10, the upper surface of processing box 1 is installed with water pump 21, the water inlet end of water pump 21 is communicated with external water source, and the water outlet end of water pump 21 is communicated with water delivery pipe 22;One end of water delivery pipe 22 extends to the inside of processing box 1 and is communicated between water pipe 5.

[0034] Processing box 1 is used as the main structure of the whole device, for accommodating flue gas and carrying out dust removal treatment. Filter dust plate 2 is used for preliminary filtering of large particle dust in flue gas, reducing the burden of subsequent treatment and prolonging the service life of subsequent components. Fixed plate 3 is used to support rotating rod 4 and water pipe 5, preventing equipment damage caused by vibration or pressure change. Rotating rod 4 is used to drive water pipe 5 to rotate, so that water pipe 5 can uniformly spray water mist, improving the coverage and efficiency of dust removal. Water pipe 5 is used to deliver water and spray water mist through atomizing nozzle 6. Atomizing nozzle 6 is used to atomize and spray water mist into flue gas. Atomizing nozzle 6 can atomize water into tiny droplets, increasing the contact area with flue gas, improving the adsorption efficiency of dust and improving the dust removal effect. The meshing transmission of worm gear 7 and worm 9 ensures the stable rotation of rotating rod 4, improving the running stability of the device. Short plate 8 is used to support worm 9, preventing equipment damage caused by vibration or pressure change. Worm 9 is used to mesh with worm gear 7 to drive worm gear 7 to rotate. Connecting pipe 10 is used for the inlet and outlet of flue gas, so that flue gas can smoothly enter and exit processing box 1, improving the processing efficiency of the device. Water pump 21 is used to deliver water from external water source to water pipe 5. The stable water supply of water pump 21 ensures the continuous operation of atomizing nozzle 6, improving the continuity and efficiency of dust removal. Water delivery pipe 22 ensures that water can be smoothly delivered from water pump 21 to water pipe 5, improving the running efficiency of the device.

[0035] The surface of filter dust plate 2 is rotatably connected with rotating rod 11;Impeller 12 is fixedly sleeved on the surface of rotating rod 11;Impeller 12 can promote air flow by its movement, improve the airflow distribution in the filter. This helps to improve the air circulation, avoid local airflow retention, thereby optimizing the filtering performance of the whole system.

[0036] Furthermore, two scrapers 13 are fixedly connected to the surface of the rotating rod 11, and both scrapers 13 are in close contact with the dust filter plate 2. The airflow drives the impeller 12 to rotate, thereby driving the scrapers 13 to scrape off the impurities adhering to the dust filter plate 2, ensuring the filtration effect of the dust filter plate 2.

[0037] The lower surface of the processing box 1 is connected to a collection box 14; the surface of the collection box 14 is provided with a movable door 15. The collection box 14 is located below the processing box 1 and is used to collect impurities scraped off the dust filter plate 2 for subsequent unified processing. The movable door 15 allows operators to easily open or close the door, easily emptying or cleaning the accumulated dust in the collection box.

[0038] Each atomizing nozzle 6 is equipped with an adjustment knob, allowing users to precisely control the atomization effect, including the spray volume and atomization fineness. This enables the spray system to adjust the spray intensity according to actual needs.

[0039] like Figure 4 As shown, a drainage box 16 is connected to the lower surface of the treatment box 1; a connecting pipe 17 is connected to the lower surface of the drainage box 16; a drain pipe 18 is installed on the connecting pipe 17. Through the drainage box 16, the connecting pipe 17, and the drain pipe 18, the water and dust mixture that settles during the atomization process can be effectively guided and discharged.

[0040] The inner wall of the drain pipe 18 is provided with internal threads; the outer surface of the connecting pipe 17 is provided with external threads; the drain pipe 18 is threaded onto the outer surface of the connecting pipe 17. The thread design facilitates the quick installation and disassembly of the drain pipe 18 and the cleaning of the filter plate 19.

[0041] A filter plate 19 is fixedly connected between the inner walls of the drain pipe 18, and the water and dust mixture is filtered through the filter plate 19.

[0042] The outer surface of the processing box 1 is provided with a sealing door 20; the sealing door 20 is provided with a handle; and the sealing door 20 is provided with a lock with the processing box 1. By arranging the lock, unauthorized persons can be effectively prevented from entering the inside of the processing box 1, possible misoperation or damage to the equipment is avoided, the operation of the equipment is ensured to be limited to authorized persons during use, and the safety is improved. In addition, the sealing door 20 can effectively prevent external dust, moisture and the like from entering the inside of the processing box 1, the working environment in the inside of the equipment is ensured to be kept clean, external factors are avoided from interfering with the normal operation of the equipment, and the working efficiency and stability of the equipment are improved. The handle enables an operator to conveniently and easily open and close the door, and great convenience is provided. When inspection, cleaning or maintenance is required, the operator can quickly open the sealing door 20 without laborious or complicated operation.

[0043] The water conveying pipe 22 is a corrugated flexible pipe. The corrugated flexible pipe has high flexibility and can adapt to different installation environments and space layouts. The corrugated flexible pipe can be flexibly bent and stretched and is suitable for places where direction change is required or space is limited, and the problem that a hard pipe cannot adapt to a complex environment is avoided.

[0044] The working process of the utility model is as follows:

[0045] The device is connected with the flue gas pipeline through the connecting pipe 10 at one end, then the flue gas is filtered through the dust filter plate 2 to filter some impurities; then the water is conveyed to the inside of the water pipe 5 through the water pump 21 and is sprayed through the multiple atomizing nozzles 6 to further settle the dust in the filtered flue gas, the flue gas subjected to double treatment is discharged through the connecting pipe 10 at the other end or is conveyed to the next process for continuous treatment, the water and dust mixture generated by settlement flows into the drainage box 16 and is discharged through the drain pipe 18, and meanwhile the water and dust mixture can be filtered through the filter plate 19, convenient to use, when the flue gas is filtered through the dust filter plate 2, the airflow impacts the impeller 12 to rotate and drives the scraper 13 to remove the impurities adhered to the dust filter plate 2, so that the impurities fall into the inside of the collecting box 14 for collection and treatment, when the dust filter plate 2 needs to be cleaned, the worm 9 is rotated to drive the worm wheel 7 to rotate, so as to drive the water pipe 5 and the atomizing nozzle 6 to adjust the angle, then the sealing door 20 is opened, the water flow sprayed through the atomizing nozzle 6 is adjusted through the adjusting knob on the atomizing nozzle 6, the dust filter plate 2 is backwashed through the water flow, and the dust filter plate 2 can be quickly cleaned, which is convenient and fast.

[0046] The above is only the preferred embodiment of the utility model and is not used for limiting the utility model. For those skilled in the art, the utility model can have various changes and variations. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A flue gas dedusting device for a thermal power plant, characterized in that, The utility model provides a dust filter, including processing box (1), the inner wall between processing box (1) is fixedly connected with filter dust board (2), the inside top wall of processing box (1) is fixedly connected with fixed plate (3), the surface of fixed plate (3) and the inner wall of processing box (1) are rotatably connected with rotating rod (4) respectively, the water pipe (5) is fixedly installed between two rotating rod (4), the lower surface of water pipe (5) is provided with a plurality of atomizing nozzles (6), one end of rotating rod (4) is extended to the outside of processing box (1) and is fixedly sleeved with worm wheel (7), the side of processing box (1) is fixedly connected with two short boards (8), two short boards (8) are rotatably connected with worm (9), and worm (9) and worm wheel (7) are engaged with each other, both ends of processing box (1) are communicated with connecting pipe (10), the upper surface of processing box (1) is installed with water pump (21), the water inlet end of water pump (21) is communicated with external water source, the water outlet end of water pump (21) is communicated with water delivery pipe (22), and one end of water delivery pipe (22) is extended to the inside of processing box (1) and is communicated with water pipe (5).

2. A flue gas dedusting device for thermal power plants according to claim 1, characterized in that, The surface of filter dust board (2) is rotatably connected with rotating rod (11), and the surface of rotating rod (11) is fixedly sleeved with impeller (12).

3. A flue gas dedusting device for thermal power plants according to claim 2, characterized in that, The surface of rotating rod (11) is fixedly connected with two scrapers (13), and the two scrapers (13) are tightly attached to filter dust board (2).

4. A flue gas dedusting device for thermal power plants according to claim 1, characterized in that, The lower surface of processing box (1) is communicated with collecting box (14), and the surface of collecting box (14) is provided with a movable door (15).

5. A flue gas dedusting device for thermal power plants according to claim 1, characterized in that, The atomizing nozzles (6) are provided with adjusting knobs.

6. A flue gas dedusting device for thermal power plants according to claim 1, characterized in that, The lower surface of processing box (1) is communicated with drainage box (16), the lower surface of drainage box (16) is communicated with connecting pipe (17), and drainage pipe (18) is installed on connecting pipe (17).

7. A flue gas dedusting device for thermal power plants according to claim 6, characterized in that, The inner wall of drainage pipe (18) is provided with internal threads, the outer surface of connecting pipe (17) is provided with external threads, and drainage pipe (18) is threadedly sleeved on the outer surface of connecting pipe (17).

8. A flue gas dedusting device for thermal power plants according to claim 7, characterized in that, The inner wall of drainage pipe (18) is fixedly connected with filter plate (19).

9. A flue gas dedusting device for thermal power plants according to claim 1, characterized in that, The outer surface of processing box (1) is provided with a sealing door (20), the sealing door (20) is provided with a handle, and a lock is arranged between the sealing door (20) and the processing box (1).

10. A flue gas dedusting device for thermal power plants according to claim 1, characterized in that, The water delivery pipe (22) is a corrugated hose.

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