Desulfurization and dust removal device for central heating engineering

Abstract

The utility model relates to a desulfurization and dust removal device for central heating engineering, which belongs to the field of desulfurization and dust removal and comprises a desulfurization box, a desulfurization spraying mechanism is arranged in the desulfurization box, and a mixing mechanism and a filter component are arranged on the lower portion in the desulfurization box. The mixing mechanism comprises a driving motor, the driving motor is mounted on the side wall of the desulfurization box, and an output shaft of the driving motor is fixedly connected with a rotating shaft. According to the desulfurization and dust removal device for the central heating engineering, the waste water treatment assembly is arranged, after waste gas is subjected to desulfurization and dust removal in a spraying mode, waste water generated in the desulfurization process flows into the mixing bin, and a flocculating agent is added into the mixing bin through the feeding hopper; the driving motor drives the rotating shaft to rotate, so that the stirring rod mixes and stirs the wastewater and the flocculating agent, then flocculates in the water are separated and filtered out through the second filter screen, and the device integrates desulfurization, dust removal and wastewater treatment, so that the steps of treatment procedures are reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of desulfurization and dust removal, in particular to a desulfurization and dust removal device for a centralized heating project. Background Art

[0002] A heating project is a system of equipment and in-plant pipelines used by thermal power plants to provide steam or hot water to heat users and recover the return water. It includes thermal power plants, heating pipelines, users, and heat conversion facilities. These facilities, especially thermal power plants, mainly provide heat by burning coal, which produces a large amount of exhaust gas containing a large amount of sulfur dioxide (SO2) and dust particles. These emissions will pollute the environment. Therefore, in order to comply with national and local environmental protection standards, central heating boiler rooms need to install desulfurization and dust removal equipment to purify the flue gas.

[0003] According to Chinese patent announcement number CN216092997U, a centralized heating desulfurization and dust removal device includes a device body, a desulfurization and dust removal bin is arranged above the device body, an air intake pipe is fixedly connected to the left side of the device body, and the right end of the air intake pipe is connected to the desulfurization and dust removal bin, an exhaust pipe is fixedly connected to the right side of the device body, and the left end of the exhaust pipe is connected to the desulfurization and dust removal bin, a desulfurization and dust removal spray mechanism is arranged above the desulfurization and dust removal bin, a filter is arranged at the bottom of the desulfurization and dust removal bin, and a waste liquid bin is arranged below the filter.

[0004] The desulfurization and dust removal device in this announcement absorbs sulfur dioxide in the flue gas through wet desulfurization and dust removal technology during use and removes dust by spraying. Although the desulfurization efficiency of wet desulfurization and dust removal is good, it will inevitably produce wastewater containing reaction residues. The direct discharge of the wastewater in this announcement requires additional treatment equipment to treat the wastewater, and the process is complicated. Therefore, a desulfurization and dust removal device for centralized heating projects is proposed. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the utility model provides a desulfurization and dust removal device for centralized heating projects, which has the advantages of integrated desulfurization and dust removal and wastewater treatment, and solves the problem that direct discharge of wastewater requires additional treatment equipment to treat the wastewater, which results in numerous processes.

[0006] To achieve the above objectives, the present invention provides the following technical solutions: a desulfurization and dust removal device for a centralized heating project, comprising a desulfurization box, a desulfurization spray mechanism is provided inside the desulfurization box, and a mixing mechanism and a filter assembly are provided in the lower inner part of the desulfurization box.

[0007] The mixing mechanism includes a driving motor, which is installed on the side wall of the desulfurization box. A rotating shaft is fixedly connected to the output shaft of the driving motor. One end of the rotating shaft passes through the desulfurization box and is rotatably connected to the inner wall of the desulfurization box. A plurality of stirring rods equidistantly distributed on the left and right are fixed to the outside of the rotating shaft. A baffle is fixed to the inner lower part of the desulfurization box, and an outlet pipe is fixed to the bottom of the baffle.

[0008] The filter assembly includes a second filter screen and two side plates, and limiting grooves are provided on opposite sides of the two side plates. The two ends of the second filter screen are respectively clamped in the inside of the limiting grooves. A slider is fixed on the side of the side plate away from the second filter screen, and the slider is slidably connected in a movable groove provided on the inner wall of the desulfurization box. The inner part of the slider is slidably connected to a slide rod fixed in the inside of the movable groove, and the outer part of the slide rod is provided with a spring installed on the top of the slider.

[0009] Furthermore, a driving wheel is fixed to the outside of the rotating shaft, a transmission belt is connected to the external transmission of the driving wheel, the internal transmission of the transmission belt away from the driving wheel is connected to the driven wheel, a rotating rod is fixed to the inside of the driven wheel, one end of the rotating rod passes through the desulfurization box and extends to the inside and is fixed with a cam, and the cam abuts against the bottom of one side plate.

[0010] Furthermore, a solenoid valve is installed on the water outlet pipe, the second filter screen is located below the baffle, and the front and rear sides of the second filter screen are in contact with the inner wall of the desulfurization box.

[0011] Furthermore, the desulfurization spray mechanism includes a liquid storage tank and a liquid pump, both of which are installed on the top of the desulfurization tank. The liquid pump is connected to the liquid storage tank through a pipeline, and a liquid infusion pipe is fixedly connected to the side of the liquid pump away from the liquid storage tank.

[0012] Furthermore, a plurality of staggered partition plates are fixed on the inner wall of the desulfurization box, and the end of the infusion tube away from the liquid pump passes through the desulfurization box and the partition plate in sequence and is fixed on the inner wall of the desulfurization box. A plurality of atomizing nozzles are installed on the infusion tube, and slots are provided on the left and right inner walls of the desulfurization box. A card plate is clamped inside the two slots, and a first filter is fixed between the two card plates, and the first filter is attached to the bottom of the partition plate.

[0013] Furthermore, an air intake pipe is fixedly passed through the left side of the desulfurization box, an exhaust pipe is fixedly passed through the right side of the desulfurization box, and two sealing door panels are hingedly connected to the desulfurization box.

[0014] Furthermore, a feed hopper is fixed through one side wall of the desulfurization box, a hopper cover is hinged on the feed hopper, a drain pipe is fixed through the bottom of the side wall of the desulfurization box, and a valve is installed on the drain pipe.

[0015] Compared with the existing technology, the technical solution of this application has the following beneficial effects:

[0016] The desulfurization and dust removal device for the centralized heating project is equipped with a wastewater treatment component. After desulfurization and dust removal of the exhaust gas by spraying, the wastewater generated during the desulfurization process will flow into the mixing bin, and flocculant will be added to the mixing bin through the feed hopper. The driving motor then drives the shaft to rotate to make the stirring rod mix and stir the wastewater and flocculant. The flocculants in the water are then separated and filtered out by the second filter. The device combines desulfurization and dust removal with wastewater treatment in an integrated manner, reducing the steps of the treatment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a cross-sectional view of the structure of the utility model;

[0018] Figure 2 For the utility model structure Figure 1 A magnified view of the structure at point A;

[0019] Figure 3 For the utility model structure Figure 1 Front view of

[0020] Figure 4 It is a three-dimensional diagram of the side panel of the structure of the present utility model.

[0021] In the figure: 1. Desulfurization tank; 2. Liquid storage tank; 3. Liquid pump; 4. Liquid infusion pipe; 5. Exhaust pipe; 6. Atomizing nozzle; 7. Partition plate; 8. First filter; 9. Driving motor; 10. Rotating shaft; 11. Stirring rod; 12. Shield; 13. Water outlet pipe; 14. Drain pipe; 15. Feed hopper; 16. Transmission belt; 17. Driven wheel; 18. Rotating rod; 19. Cam; 20. Slider; 21. Sliding rod; 22. Spring; 23. Side panel; 231. Limiting groove; 24. Second filter; 25. Sealing door panel. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described 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 creative efforts are within the scope of protection of the present invention.

[0023] See also Figures 1 to 4The desulfurization dust removal device for a centralized heating project in this embodiment includes a desulfurization box 1, a desulfurization spray mechanism is arranged inside the desulfurization box 1, the desulfurization spray mechanism includes a liquid storage tank 2 and a liquid suction pump 3, the liquid storage tank 2 and the liquid suction pump 3 are both installed on the top of the desulfurization box 1, the liquid suction pump 3 is connected to the liquid storage tank 2 by a pipeline, the liquid suction pump 3 is fixedly connected to the liquid storage tank 2 on the side away from the liquid storage tank 2, a plurality of staggered partition plates 7 are fixed on the inner wall of the desulfurization box 1, one end of the liquid suction pipe 4 away from the liquid suction pump 3 passes through the desulfurization box 1 and the partition plate 7 in turn and is fixed on the inner wall of the desulfurization box 1, a plurality of atomizing nozzles 6 are installed on the liquid suction pipe 4, slots are provided on the left and right inner walls of the desulfurization box 1, card plates are clamped inside the two slots, a first filter screen 8 is fixed between the two card plates, the first filter screen 8 is attached to the bottom of the partition plate 7, a mixing mechanism and a filter assembly are provided on the inner lower part of the desulfurization box 1, and a control panel is installed on the side wall of the desulfurization box 1.

[0024] It should be noted that the front and rear side walls of the partition plate 7 are fixedly connected to the inner wall of the desulfurization box 1. The arrangement of the partition plate 7 can slow down the outflow of the exhaust gas, so that the alkaline solution and the exhaust gas are fully mixed for desulfurization treatment.

[0025] The mixing mechanism includes a drive motor 9, which is installed on the side wall of the desulfurization box 1. A rotating shaft 10 is fixedly connected to the output shaft of the drive motor 9. One end of the rotating shaft 10 passes through the desulfurization box 1 and is rotatably connected to the inner wall of the desulfurization box 1. A plurality of stirring rods 11 equidistantly distributed on the left and right are fixed to the outside of the rotating shaft 10. A baffle 12 is fixed to the inner lower part of the desulfurization box 1. A water outlet pipe 13 is passed through and fixed to the bottom of the baffle 12. A solenoid valve is installed on the water outlet pipe 13. The second filter screen 24 is located below the baffle 12. The front and rear sides of the second filter screen 24 are in contact with the inner wall of the desulfurization box 1. An air intake pipe is passed through and fixed on the left side of the desulfurization box 1, and an exhaust pipe 5 is passed through and fixed on the right side of the desulfurization box 1. Two sealing door panels 25 are hinged on the desulfurization box 1.

[0026] The filter assembly includes a second filter screen 24 and two side panels 23. A limiting groove 231 is provided on the opposite sides of the two side panels 23. The two ends of the second filter screen 24 are respectively clamped in the inside of the limiting groove 231. A slider 20 is fixed on the side of the side panel 23 away from the second filter screen 24. The slider 20 is slidably connected to the movable groove provided on the inner wall of the desulfurization box 1. The interior of the slider 20 is slidably connected to the slide rod 21 fixed inside the movable groove. The outside of the slide rod 21 is provided with a spring 22 installed on the top of the slider 20.

[0027] By setting up a wastewater treatment component, after the waste gas is desulfurized and dust-removed by spraying, the wastewater generated during the desulfurization process will flow into the mixing bin, and flocculant will be added to the mixing bin through the feed hopper 15. The driving motor 9 drives the rotating shaft 10 to rotate to make the stirring rod 11 mix and stir the wastewater and flocculant, and then the flocculants in the water are separated and filtered out through the second filter screen 24. The device combines desulfurization and dust removal with wastewater treatment in an integrated manner, reducing the steps of the treatment process.

[0028] In this embodiment, a driving wheel is fixed to the outside of the rotating shaft 10, and a transmission belt 16 is connected to the external transmission of the driving wheel. The internal transmission of the transmission belt 16 away from the side of the driving wheel is connected to the driven wheel 17. A rotating rod 18 is fixed to the inside of the driven wheel 17. One end of the rotating rod 18 passes through the desulfurization box 1 and extends to the inside and is fixed with a cam 19. The cam 19 abuts against the bottom of a side plate 23 on one side.

[0029] It should be noted that when the rotating shaft 10 drives the stirring rod 11 to rotate to stir and mix the wastewater and flocculant, the outlet pipe 13 is opened to allow the mixed wastewater to flow out through the second filter screen 24 to filter the flocculants in the water. When the rotating shaft 10 rotates, it will drive the driving wheel to rotate, so that the transmission belt 16 drives the driven wheel 17 to rotate, which can make the rotating rod 18 drive the cam 19 to rotate, so that the cam 19 pushes the side plate 23 to move up and down, and cooperates with the elasticity of the spring 22 itself to make the second filter screen 24 in a shaking state to prevent the flocculants from clogging the filter holes on the second filter screen 24.

[0030] The two sealing door panels 25 are located in front of the second filter 24 and the first filter 8 respectively. The second filter 24 or the first filter 8 can be taken out by opening the sealing door panels 25 .

[0031] See also Figure 1 A feed hopper 15 is fixed through one side wall of the desulfurization box 1, and a hopper cover is hinged on the feed hopper 15. A drain pipe 14 is fixed through the bottom of the side wall of the desulfurization box 1, and a valve is installed on the drain pipe 14.

[0032] It should be noted that the space between the baffle 12 and the first filter screen 8 forms a mixing chamber, and flocculant is conveniently added to the wastewater in the mixing chamber through the feed hopper 15 .

[0033] The working principle of the above embodiment is as follows: when in use, the exhaust gas enters the desulfurization box 1 from the inlet pipe, and the alkaline solution in the liquid storage tank 2 is extracted by the liquid pump 3 and sprayed into the desulfurization box 1, so that the solution is fully in contact with the exhaust gas, achieving the desulfurization effect. At the same time, the spraying method can also achieve the dust reduction effect, so that the wastewater generated after desulfurization passes through the first filter 8 to filter the dust mixed therein, and the wastewater flows into the mixing bin. The bucket cover is opened to add flocculant into the feed hopper 15, so that the flocculant falls into the wastewater, and then the driving motor 9 drives the shaft 10 to rotate to make the stirring rod 11 mix and stir the wastewater and The flocculant and the fully mixed wastewater are discharged from the outlet pipe 13 and filtered out the flocculants in the wastewater through the second filter screen 24. When the rotating shaft 10 rotates, it will drive the driving wheel to rotate, so that the transmission belt 16 drives the driven wheel 17 to rotate, which can make the rotating rod 18 drive the cam 19 to rotate, so that the cam 19 pushes the side plate 23 to move up and down, and cooperates with the elasticity of the spring 22 itself to make the second filter screen 24 in a shaking state to prevent the flocculants from clogging the filter holes on the second filter screen 24, so that impurities and water can be separated. The device combines desulfurization and dust removal with wastewater treatment to reduce the steps of the treatment process.

[0034] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0035] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A desulfurization and dust removal device for a centralized heating project, comprising a desulfurization box (1), characterized in that: A desulfurization spray mechanism is provided inside the desulfurization box (1), and a mixing mechanism and a filtering assembly are provided at the lower inner portion of the desulfurization box (1); The mixing mechanism comprises a driving motor (9), the driving motor (9) being mounted on the side wall of the desulfurization box (1), a rotating shaft (10) being fixedly connected to the output shaft of the driving motor (9), one end of the rotating shaft (10) passing through the desulfurization box (1) and being rotatably connected to the inner wall of the desulfurization box (1), a plurality of stirring rods (11) being fixed to the outside of the rotating shaft (10) and being equidistantly distributed on the left and right sides, a baffle (12) being fixed to the inner lower part of the desulfurization box (1), and a water outlet pipe (13) being passed through and fixed to the bottom of the baffle (12); The filter assembly includes a second filter screen (24) and two side plates (23), and a limiting groove (231) is provided on opposite sides of the two side plates (23). The two ends of the second filter screen (24) are respectively clamped in the inside of the limiting groove (231). A slider (20) is fixed on the side of the side plate (23) away from the second filter screen (24). The slider (20) is slidably connected in a movable groove provided on the inner wall of the desulfurization box (1). The inside of the slider (20) is slidably connected to a slide rod (21) fixed in the inside of the movable groove, and the outside of the slide rod (21) is provided with a spring (22) installed on the top of the slider (20).

2. A desulfurization and dust removal device for a centralized heating project according to claim 1, characterized in that: A driving wheel is fixed on the outside of the rotating shaft (10), and a transmission belt (16) is connected to the outside of the driving wheel. The transmission belt (16) is connected to the inside of a driven wheel (17) away from the driving wheel. A rotating rod (18) is fixed to the inside of the driven wheel (17). One end of the rotating rod (18) passes through the desulfurization box (1) and extends to the inside and is fixed with a cam (19). The cam (19) abuts against the bottom of a side plate (23).

3. The desulfurization and dust removal device for a centralized heating project according to claim 1, characterized in that: A solenoid valve is installed on the water outlet pipe (13), the second filter screen (24) is located below the baffle (12), and the front and rear sides of the second filter screen (24) are in contact with the inner wall of the desulfurization box (1).

4. The desulfurization and dust removal device for a centralized heating project according to claim 1, characterized in that: The desulfurization spray mechanism comprises a liquid storage tank (2) and a liquid pump (3), wherein the liquid storage tank (2) and the liquid pump (3) are both installed on the top of the desulfurization tank (1), the liquid pump (3) and the liquid storage tank (2) are connected via a pipeline, and a liquid delivery pipe (4) is fixedly connected to the side of the liquid pump (3) away from the liquid storage tank (2).

5. The desulfurization and dust removal device for a centralized heating project according to claim 4, characterized in that: A plurality of staggered partition plates (7) are fixed on the inner wall of the desulfurization box (1); the end of the liquid infusion pipe (4) away from the liquid pump (3) passes through the desulfurization box (1) and the partition plate (7) in sequence and is fixed on the inner wall of the desulfurization box (1); a plurality of atomizing nozzles (6) are installed on the liquid infusion pipe (4); a card slot is provided on the left and right inner walls of the desulfurization box (1); a card plate is clamped inside the two card slots; a first filter screen (8) is fixed between the two card plates; the first filter screen (8) is attached to the bottom of the partition plate (7).

6. The desulfurization and dust removal device for a centralized heating project according to claim 1, characterized in that: An air intake pipe is fixedly passed through the left side of the desulfurization box (1), an exhaust pipe (5) is fixedly passed through the right side of the desulfurization box (1), and two sealing door panels (25) are hingedly connected to the desulfurization box (1).

7. The desulfurization and dust removal device for a centralized heating project according to claim 1, characterized in that: A feed hopper (15) is fixedly passed through one side wall of the desulfurization box (1), a hopper cover is hingedly connected to the feed hopper (15), a drain pipe (14) is fixedly passed through the bottom of the side wall of the desulfurization box (1), and a valve is installed on the drain pipe (14).

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