Multi-effect automatic dust removal structure

Abstract

The utility model discloses a multi-effect automatic dust removal structure which comprises a primary-effect filtering area, a medium-effect filtering area and a drying area, airflow to be subjected to dust removal enters from an air inlet, sequentially flows through the primary-effect filtering area, the medium-effect filtering area and the drying area, flows out from an air outlet and is matched with a spraying system for dust removal. According to the utility model, airflow to be dedusted enters from the air inlet, sequentially passes through the primary-efficiency filtering area, the drainage area, the medium-efficiency filtering area and the drying area inside and finally flows out from the air outlet, and impurities and dirt accumulated in the filtering structure do not need to be manually cleaned in the whole process, so that the workload and the maintenance cost are greatly reduced; meanwhile, the multi-effect automatic dust removal system is further provided with a spraying system, a large amount of harmful gas such as ammonia gas and hydrogen sulfide can be effectively carried away, the deodorization effect is improved, corrosion of return air to equipment such as a drying machine heat exchanger is reduced, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of drying machine filtering equipment, in particular to a multi-effect automatic dust removal structure. Background Art

[0002] Dryer is a commonly used industrial equipment, mainly used to remove moisture from materials. The working principle of the dryer is to evaporate the moisture in the material by heating and removing moisture. The dryer filter is mainly used to remove suspended particles and harmful substances in the air to ensure the normal operation of the dryer. The primary and medium efficiency filters are usually used as pre-filters in the dryer to capture larger particles and impurities and play a pre-filtration role.

[0003] Existing primary and secondary filters usually use high-efficiency electrostatic filter materials or multi-layer filter nets to filter out dust, bacteria, viruses and other particulate matter in the air. Since the filter will accumulate a lot of impurities and dirt after long-term use, the filtering effect will decrease and even affect the normal operation of the equipment. Therefore, regular manual cleaning and maintenance are required, which not only increases labor costs, but also affects the production efficiency of the production line, especially in some occasions with high cleanliness requirements, which require more frequent cleaning and maintenance. Utility Model Content

[0004] The purpose of the utility model is to solve the above problems and provide a multi-effect automatic dust removal structure.

[0005] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions, including:

[0006] The primary filter area, the medium filter area and the drying area, the airflow to be dusted enters from the air inlet, flows through the primary filter area, the medium filter area and the drying area in sequence, flows out from the air outlet, and is dusted in conjunction with the spray system;

[0007] The spray system comprises a first spray pipe and a second spray pipe, the primary filter area is provided with a first spray pipe and a guide plate, the medium filter area is provided with a second spray pipe and a first filler area, and the drying area is provided with a second filler area;

[0008] The first spray pipe cooperates with the guide plate to perform a primary filtration process, the second spray pipe cooperates with the first filler area to perform a medium filtration process, and the drying area performs a drying process;

[0009] A drainage area is also provided at the bottom of the primary filter area and the intermediate filter area, and the drainage area is drained through a water guide plate.

[0010] As a further description of the above technical solution, the spray system is connected to the peripheral sedimentation tank to maintain the water circulation dust removal process.

[0011] As a further description of the above technical solution, nozzles are evenly distributed under the first spray pipe and the second spray pipe. The nozzles are wide-angle spiral nozzles. The working water pressure of the nozzles is 1.5-3 bar, and the spray angle of the nozzles is 60-120°.

[0012] As a further description of the above technical solution, the air flow direction in the primary filter area is the same as the spraying direction of the nozzle, and the air flow direction in the intermediate filter area is opposite to the spraying direction of the nozzle.

[0013] As a further description of the above technical solution, the airflow in the primary filtration area flows downward, then flows horizontally through the drainage area, and then flows upward through the intermediate drainage area.

[0014] As a further description of the above technical solution, the guide plate includes a first baffle and a second baffle, and the guide plate is tilted and fixed on one side of the primary filter area.

[0015] As a further description of the above technical solution, a wire mesh plate is arranged at the bottom of the first filling area.

[0016] As a further description of the above technical solution, the water guide plate is fixed to the bottom of the drainage area at an angle downward from the primary filtration area.

[0017] As a further description of the above technical solution, a drainage pipe is provided on one side of the drainage area, and the water guide plate cooperates with the drainage pipe to drain the muddy water flushed in the medium-efficiency filtration area.

[0018] As a further description of the above technical solution, the air outlet is provided with a mist blocking device, and the mist blocking device adopts one or more combinations of a wire mesh demister, a water baffle and a filter net, and the mist blocking device is used to block water mist.

[0019] The beneficial effects of the utility model are as follows:

[0020] 1. In the utility model, the airflow to be dusted enters from the air inlet, passes through the primary filter area, drainage area, medium filter area and drying area in turn, and finally flows out from the air outlet. The whole process does not require manual cleaning of impurities and dirt accumulated in the filter structure, which greatly reduces the workload and maintenance costs; at the same time, the multi-effect automatic dust removal system is also equipped with a spray system, which can effectively carry away a large amount of harmful gases such as ammonia and hydrogen sulfide, improve the deodorization effect and reduce the corrosion of return air to equipment such as the dryer heat exchanger, thereby extending its service life;

[0021] 2. In the utility model, the primary filter area is composed of a row of spray systems and two baffles with a certain angle. When the airflow passes through the primary filter area from top to bottom, the turbulence makes the dust and water mist contact more fully, achieving the effect of preliminary filtration; the medium-efficiency filter area is composed of a wire mesh plate, filler and spray system. The airflow passes through the medium-efficiency filter area from bottom to top, and the spray system releases water mist from top to bottom to achieve the effect of convection dust removal; the drying area is mainly composed of fillers, which can remove most of the water vapor and droplets floating in the airflow, ensuring that the drying effect of the air outlet meets the requirements;

[0022] 3. In the utility model, the drainage area is designed with an inclined water guide plate, which, together with the drainage pipe, can drain the water more effectively and avoid the accumulation of sludge; the air outlet is provided with a mist blocking device, which can further remove the mist droplets and water vapor in the air flow, ensuring that the drying effect of the air outlet meets the requirements.

[0023] In order to more clearly illustrate the structural features and functions of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the dust removal structure of the utility model.

[0025] Reference numerals:

[0026] 1. Primary filtration area; 2. Medium-efficiency filtration area; 3. Drying area; 4. Drainage area; 5. Air inlet; 6. Air outlet; 7. Spraying system; 71. First spray pipe; 72. Second spray pipe; 73. Nozzle; 8. Guide plate; 81. First baffle; 82. Second baffle; 9. First filling area; 10. Second filling area; 11. Water guide plate; 12. Wire mesh plate; 13. Drainage pipe; 14. Mist blocking device. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solution and advantages of the embodiments of the present utility model clearer, the technical solution in the embodiments of the present utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the present utility model.

[0028] like Figure 1 As shown, in one embodiment, a multi-effect automatic dust removal structure includes: a primary filter area 1, a drainage area 4, a medium-efficiency filter area 2 and a drying area 3. In the multi-effect automatic dust removal system, the primary filter area 1 and the medium-efficiency filter area 2 can effectively capture and filter particulate impurities in the air, the drainage area 4 is specifically used to collect and discharge muddy water and dirt, and the drying area 3 is used to evaporate or volatilize residual water to ensure that the drying effect meets the requirements.

[0029] like Figure 1As shown, in this embodiment, the spray system 7 is composed of a first spray pipe 71 and a second spray pipe 72, and is connected to the peripheral sedimentation tank to maintain the water circulation dust removal process. The first spray pipe 71 cooperates with the guide plate 8 to perform the primary filtration process, and the second spray pipe 72 cooperates with the first filler area 9 to perform the medium filtration process.

[0030] Furthermore, large-caliber anti-blocking wide-angle spiral nozzles 73 are evenly distributed under the first spray pipe 71 and the second spray pipe 72. The working water pressure of these nozzles 73 is 1.5-3 bar, and the spray angle is 60-120°, ensuring that the water mist evenly and fully covers the entire airflow area, thereby effectively removing dust.

[0031] like Figure 1 As shown, in this embodiment, the primary filter area 1 is provided with a first spray pipe 71 and a guide plate 8. The guide plate 8 includes a first baffle 81 and a second baffle 82, and the guide plate 8 is tilted and fixed to one side of the primary filter area 1. When the airflow passes through the primary filter area 1 from top to bottom, the turbulent flow makes the dust and the water mist contact more fully, achieving the effect of preliminary filtering, and ensuring that the particles and impurities in the airflow are effectively removed.

[0032] like Figure 1 As shown, in this embodiment, the medium-efficiency filtration area 2 is provided with a second spray pipe 72 and a first filler area 9, and the drying area 3 is provided with a second filler area 10. The airflow passes through the medium-efficiency filtration area 2 from bottom to top, and the spray system 7 releases water mist from top to bottom to achieve the effect of convective dust removal; the drying area 3 can remove most of the water vapor and droplets floating in the airflow, ensuring that the drying effect of the air outlet 6 meets the requirements.

[0033] Specifically, the material of the packing area can be selected from Raschig rings, multi-channel structured packing or multi-leaf hollow balls. These materials can make the airflow constantly turn and increase the wind contact area, so as to fully achieve the effect of dust removal and dehumidification. By selecting and arranging the packing, the contact degree between the airflow and the packing can be effectively improved, and the dust removal and dehumidification process can be promoted to the maximum extent.

[0034] Furthermore, a steel wire mesh plate 12 is provided at the bottom of the first packing area 9, and its main function is to ensure that the oncoming wind speed is maintained within a reasonable range of 2m / s, so that the airflow maintains an appropriate speed when passing through the packing area, avoids the instantaneous impact caused by excessive wind speed, and reduces the impact of the resistance of the entire equipment on the entire dryer. In addition, the use of the steel wire mesh plate 12 also helps to maintain the stability of the packing, prevents the packing material from being excessively squeezed or moved under the action of the airflow, thereby ensuring the overall effect and life of the packing area.

[0035] like Figure 1As shown, in this embodiment, the drainage area 4 is arranged at the bottom of the primary filter area 1 and the medium filter area 2, and the drainage area 4 performs drainage through the water guide plate 11.

[0036] Among them, the water guide plate 11 is fixed at the bottom of the drainage area 4 at an angle downward from the primary filtration area 1, and a drainage pipe 13 is provided on one side of the drainage area 4. The water guide plate 11 can guide the muddy water to flow along the designated path to the drainage pipe 13, and discharge the muddy water flushed in the intermediate filtration area 2.

[0037] like Figure 1 As shown, in this embodiment, the air outlet 6 is provided with a mist blocking device 14. The mist blocking device 14 adopts one or more combinations of a wire mesh demister, a water baffle and a filter. The mist blocking device 14 can further remove mist droplets and water vapor in the airflow to ensure that the drying effect of the air outlet 6 meets the requirements.

[0038] Working principle: The airflow to be dust-removed enters from the air inlet 5, passes through the primary filtration area 1, the drainage area 4, the medium-efficiency filtration area 2 and the drying area 3 in turn, and finally flows out from the air outlet 6. The whole process does not require manual cleaning of impurities and dirt accumulated in the filtration structure, which greatly reduces the workload and maintenance costs; at the same time, the multi-effect automatic dust removal system is also equipped with a spray system 7, which can effectively carry away a large amount of harmful gases such as ammonia and hydrogen sulfide, improve the deodorization effect and reduce the corrosion of return air to equipment such as the dryer heat exchanger, thereby extending its service life.

[0039] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multi-effect automatic dust removal structure, characterized in that: include: A primary filter area (1), a medium filter area (2) and a drying area (3), wherein the airflow to be dusted enters from an air inlet (5), flows through the primary filter area (1), the medium filter area (2) and the drying area (3) in sequence, flows out from an air outlet (6), and is dusted in cooperation with a spray system (7); The spray system (7) comprises a first spray pipe (71) and a second spray pipe (72); the primary filter area (1) is provided with the first spray pipe (71) and a guide plate (8); the intermediate filter area (2) is provided with the second spray pipe (72) and a first filler area (9); and the drying area (3) is provided with a second filler area (10); The first spray pipe (71) cooperates with the guide plate (8) to perform a primary filtering process, the second spray pipe (72) cooperates with the first filling area (9) to perform a medium filtering process, and the drying area (3) performs a drying process; A drainage area (4) is also provided at the bottom of the primary filtering area (1) and the intermediate filtering area (2), and the drainage area (4) is drained through a water guide plate (11).

2. The multi-effect automatic dust removal structure according to claim 1 is characterized in that: The spray system (7) is connected to the peripheral sedimentation tank to maintain the water circulation dust removal process.

3. The multi-effect automatic dust removal structure according to claim 1 is characterized in that: Nozzles (73) are evenly distributed below the first spray pipe (71) and the second spray pipe (72); the nozzles (73) are wide-angle spiral nozzles (73); the working water pressure of the nozzles (73) is 1.5-3 bar; and the spray angle of the nozzles (73) is 60-120°.

4. The multi-effect automatic dust removal structure according to claim 1 is characterized in that: The direction of the airflow in the primary filtering zone (1) is the same as the spraying direction of the nozzle (73), and the direction of the airflow in the secondary filtering zone (2) is opposite to the spraying direction of the nozzle (73).

5. The multi-effect automatic dust removal structure according to claim 1, characterized in that: The airflow in the primary filtering area (1) flows downward, then flows horizontally through the drainage area (4), and then flows upward through the intermediate drainage area (4).

6. The multi-effect automatic dust removal structure according to claim 1, characterized in that: The guide plate (8) comprises a first baffle (81) and a second baffle (82), and the guide plate (8) is tilted and fixed on one side of the primary filtering area (1).

7. The multi-effect automatic dust removal structure according to claim 1, characterized in that: A steel wire mesh plate (12) is provided at the bottom of the first filling area (9).

8. The multi-effect automatic dust removal structure according to claim 1, characterized in that: The water guide plate (11) is fixed to the bottom of the drainage area (4) at an angle downward from the primary filtering area (1).

9. The multi-effect automatic dust removal structure according to claim 1, characterized in that: A drainage pipe (13) is provided on one side of the drainage area (4), and the water guide plate (11) cooperates with the drainage pipe (13) to drain away muddy water flushed in the medium-efficiency filtration area (2).

10. The multi-effect automatic dust removal structure according to claim 1, characterized in that: The air outlet (6) is provided with a mist blocking device (14), the mist blocking device (14) adopts one or more combinations of a wire mesh demister, a water baffle and a filter screen, and the mist blocking device (14) is used to block water mist.

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