Bag-type dust collector special for biomass boiler

Abstract

The utility model discloses a special bag-type dust collector for a biomass boiler, which comprises a partition plate fixedly mounted in a dust collection shell, a plurality of dust collection bags distributed at intervals are fixedly mounted on the partition plate, an air outlet pipe and an air inlet pipe are fixedly inserted into the right upper side and the left lower side of the dust collection shell respectively, and a blow-off pipe is fixedly inserted into the bottom of the dust collection shell. A cooling and gas uniformizing plate is arranged in the dust removal shell and below the dust removal cloth bag, the cooling and gas uniformizing plate is mounted on the inner side wall of the dust removal shell and located above the gas inlet pipe, a plurality of through holes distributed at equal intervals vertically penetrate through the cooling and gas uniformizing plate, and a cooling cavity is formed in the cooling and gas uniformizing plate; and a cleaning mechanism for cleaning dust adhered to the bottom surface of the cooling and gas uniformizing plate is arranged in the dust removal shell, the cooling and gas uniformizing plate enables flue gas to be uniformly dispersed, local impact on the dust removal cloth bag is avoided, and the cleaning mechanism can be used for cleaning dust impurities adhered to the cooling and gas uniformizing plate. The technical field of dust removal is adapted.

Description

Technical Field

[0001] The utility model belongs to the technical field of dust removal, and in particular relates to a special bag dust collector for biomass boilers. Background Art

[0002] The biomass boiler is a type of boiler. The boiler that uses biomass energy as fuel is called a biomass boiler. When the biomass boiler is burning, the dust impurities contained in the material will be discharged to the outside through the smoke outlet along with the hot air. A dust collector is usually used to remove dust from the exhaust flue gas. The dust collector cools and removes dust from the high-temperature exhaust flue gas. Patent No. CN221014989U discloses a safe bag dust collector with a cooling function. A U-shaped cooling pipe is arranged on the outside of the dust bag to transport the cooling liquid into the U-shaped cooling pipe. The high-temperature gas in the dust bag is absorbed by the U-shaped cooling pipe. However, it only cools the dust bag through the narrow U-shaped cooling pipe. The cooling range is too small, and the cooling effect on the dust bag is poor. It is also unable to disperse the high-temperature flue gas, so that the high-temperature flue gas impacts the dust bag in a relatively concentrated manner, which easily causes damage to the dust bag. For this reason, we propose a bag dust collector specifically for biomass boilers. Utility Model Content

[0003] The utility model provides a special bag dust collector for a biomass boiler to solve the technical problems raised in the above background technology.

[0004] In order to achieve the above purpose, the technical solutions adopted by the present utility model are as follows:

[0005] A bag dust collector specially designed for biomass boilers includes a partition fixedly installed inside the dust removal shell, on which a number of dust bags distributed at intervals are fixedly installed, and an air outlet pipe and an air inlet pipe are fixedly plugged in on the upper right and lower left sides of the dust removal shell, respectively, and a sewage pipe is fixedly plugged in on the bottom of the dust removal shell. The key point is that a cooling and uniforming plate for evenly dispersing and cooling the gas is provided inside the dust removal shell and below the dust removal bag, the cooling and uniforming plate is installed on the inner side wall of the dust removal shell and is located above the air inlet pipe, a number of equidistant through holes are vertically penetrated on the cooling and uniforming plate, a cooling cavity for storing cooling liquid is formed inside the cooling and uniforming plate, and a cleaning mechanism for cleaning dust adhered to the bottom surface of the cooling and uniforming plate is provided in the dust removal shell.

[0006] Furthermore, the cooling air uniforming plate includes a first air uniforming plate and a second air uniforming plate, and the outer peripheries of the first air uniforming plate and the second air uniforming plate are respectively fixedly installed with fixing frames, and the interiors of the first air uniforming plate and the second air uniforming plate are respectively formed with cooling cavities, and the cooling cavities are not connected to the through holes. The fixing frame of the first air uniforming plate is fixedly installed on the left side of the dust removal shell, and the fixing frame of the second air uniforming plate is arranged on the right side of the dust removal shell, and the first air uniforming plate and the second air uniforming plate are staggered up and down, and the top surface of the left end of the fixing frame of the second air uniforming plate is sealed with the bottom surface of the right end of the fixing frame of the first air uniforming plate.

[0007] Furthermore, the cleaning mechanism includes a scraper fixedly mounted on the left end of the second air-leveling plate, the scraper abutting the bottom surface of the first air-leveling plate, a scraper strip is provided below the second air-leveling plate, the front and rear ends of the scraper strip are fixedly connected to the inner wall of the dust-removing shell, the scraper strip abuts the bottom surface of the second air-leveling plate, the fixed frame of the second air-leveling plate is sealingly and slidingly connected to the inner wall of the dust-removing shell, the right end of the fixed frame of the second air-leveling plate is fixedly connected to a limiting plate, the limiting plate abuts the inner wall of the dust-removing shell, the right end of the limiting plate is fixedly connected to a baffle, and the baffle slides through the right side of the dust-removing shell.

[0008] Furthermore, an electric telescopic rod is provided below the baffle, and the electric telescopic rod is fixedly mounted on the side of the dust removal shell. The telescopic end of the electric telescopic rod passes through the side wall of the dust removal shell and is fixedly connected to the limit plate.

[0009] Furthermore, an annular cavity is formed in the fixed frame, and a plurality of connecting holes are respectively spaced apart on the inner periphery of the fixed frame, and the connecting holes are respectively connected to the annular cavity and the cooling cavity, and the bottoms of the opposite ends of the two fixed frames are respectively fixedly connected with a first liquid inlet pipe and a second liquid inlet pipe, and one end of the first liquid inlet pipe and the second liquid inlet pipe are respectively fixedly connected to the annular cavities of the two fixed frames, and the other ends of the first liquid inlet pipe and the second liquid inlet pipe pass through the side wall of the dust removal shell to the outside world, and the first liquid inlet pipe and the second liquid inlet pipe are hoses, and the outer ends of the first liquid inlet pipe and the second liquid inlet pipe are connected to the external suction equipment.

[0010] Because the utility model adopts the above-mentioned structure, the technical progress achieved by it compared with the existing technology is that the utility model conveys the high-temperature flue gas discharged by the biomass boiler into the air inlet pipe, and the high-temperature flue gas flows upward through the through holes of the cooling and uniforming plate, and then filters the flue gas through the dust collector bag. When the high-temperature flue gas passes through the through holes of the cooling and uniforming plate, the cooling liquid in the cooling chamber exchanges heat with the high-temperature flue gas, so that the high-temperature flue gas is cooled. Compared with the U-shaped cooling tube for cooling the dust collector bag, the cooling range is large, and the cooling and uniforming plate can make the flue gas evenly dispersed, and will not cause local impact on the dust collector bag, thereby increasing the service life of the dust collector bag. If the utility model is used for a long time, the through holes will be blocked by dust impurities. By setting a cleaning mechanism, the dust impurities adhered to the cooling and uniforming plate can be cleaned, and there is no need to manually disassemble the cooling and uniforming plate for cleaning, which saves time and effort. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0012] In the attached figure:

[0013] Figure 1 It is a structural diagram of the utility model;

[0014] Figure 2 This is a structural sectional view of the utility model;

[0015] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0016] Figure 4 This is a schematic structural diagram of the connection between the first air-distributing plate and the second air-distributing plate of the present invention;

[0017] Figure 5 This is a top view of the structure of the first air-distributing plate of the present invention.

[0018] Marked parts: 1. Dust removal shell; 2. Partition; 3. Dust removal bag; 4. Exhaust pipe; 5. Inlet pipe; 6. Sewage pipe; 7. Cooling and uniform air plate; 71. First air uniform plate; 72. Second air uniform plate; 8. Through hole; 9. Cooling chamber; 10. Fixed frame; 11. Scraper; 12. Scraper strip; 13. Limiting plate; 14. Baffle; 15. Electric telescopic rod; 16. Annular cavity; 17. Connecting hole; 18. First liquid inlet pipe; 19. Second liquid inlet pipe. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0020] The utility model discloses a bag dust collector specially designed for biomass boilers. Figure 1-5 The dust collector 1 has a plurality of dust collecting bags 3 arranged on the bottom and a plurality of dust collecting bags 3 arranged on the bottom. The working principle and advantages of the present invention are as follows: the present invention transports the high-temperature flue gas discharged from the biomass boiler into the air intake pipe 5, and the high-temperature flue gas flows upward through the through holes 8 of the cooling and uniforming plate 7, and then filters the flue gas through the dust collector bag 3. When the high-temperature flue gas passes through the through holes 8 of the cooling and uniforming plate 7, the cooling liquid in the cooling chamber 9 exchanges heat with the high-temperature flue gas, so that the high-temperature flue gas is cooled. Compared with the U-shaped cooling tube for cooling the dust collector bag 3, the cooling range is large, and the cooling and uniforming plate 7 can make the flue gas evenly dispersed, and will not cause local impact on the dust collector bag 3, thereby increasing the service life of the dust collector bag 3. When the present invention is used for a long time, the through holes 8 will be blocked by dust impurities. By setting a cleaning mechanism, the dust impurities adhered to the cooling and uniforming plate 7 can be cleaned, and there is no need to manually disassemble the cooling and uniforming plate 7 for cleaning, which saves time and effort.

[0021] Specifically, the cooling air-distributing plate includes a first air-distributing plate 71 and a second air-distributing plate 72. The outer peripheries of the first air-distributing plate 71 and the second air-distributing plate 72 are respectively fixedly installed with a fixing frame 10. The interiors of the first air-distributing plate 71 and the second air-distributing plate 72 are respectively formed with a cooling cavity 9, which is not connected to the through-hole 8. The fixing frame of the first air-distributing plate 71 is fixedly installed on the left side of the dust-removing shell 1, and the fixing frame 10 of the second air-distributing plate 72 is arranged on the right side of the dust-removing shell 1. The first air-distributing plate 71 and the second air-distributing plate 72 are staggered up and down, and the top surface of the left end of the fixing frame 10 of the second air-distributing plate 72 is sealed with the bottom surface of the right end of the fixing frame 10 of the first air-distributing plate 71; when the high-temperature flue gas contacts the first air-distributing plate 71 and the second air-distributing plate 72, the flue gas will flow to the top through the through-hole 8, and the coolant in the cooling cavity 9 will exchange heat with the high-temperature flue gas, thereby cooling the high-temperature flue gas.

[0022] The cleaning mechanism of the present invention includes a scraper 11 fixedly mounted on the left end of the second air-leveling plate 72, the scraper 11 abuts against the bottom surface of the first air-leveling plate 71, a scraper strip 12 is provided below the second air-leveling plate 72, the front and rear ends of the scraper strip 12 are fixedly connected to the inner side wall of the dust removal housing 1, the scraper strip 12 abuts against the bottom surface of the second air-leveling plate 72, the fixing frame 10 of the second air-leveling plate 72 is sealingly and slidably connected to the inner wall of the dust removal housing 1, and the right end of the fixing frame 10 of the second air-leveling plate 72 is fixedly connected to The limit plate 13 is in contact with the inner wall of the dust removal shell 1, and the right end of the limit plate 13 is fixedly connected with a baffle 14, which slides through the right side of the dust removal shell 1. An electric telescopic rod 15 is provided below the baffle 14, which is fixedly installed on the side of the dust removal shell 1. The telescopic end of the electric telescopic rod 15 passes through the side wall of the dust removal shell 1 and is fixedly connected to the limit plate 13. When the first air-distributing plate 71 and the second air-distributing plate 72 need to be cleaned, the electric telescopic rod 15 is started. The retractable rod 15 drives the second air-leveling plate 72 and the baffle 14 to move to the left, and the scraper 11 also moves to the left with the second air-leveling plate 72, so that the scraper 11 scrapes off the dirt at the lower end of the first air-leveling plate 71, and the front and rear ends of the scraper 12 are fixedly connected to the inner wall of the dust removal housing 1 and are located at the lower end of the second air-leveling plate 72. In this way, when the second air-leveling plate 72 moves, the dirt on the lower end surface of the second air-leveling plate 72 can be removed, and when the second air-leveling plate 72 moves to the left, the baffle 14 14 will enter the dust removal shell 1 and seal the left side of the second air uniforming plate 72; after the dirt is scraped off, and the first air uniforming plate 71 and the second air uniforming plate 72 return to their original positions, the pulse cleaner is started. The pulse cleaner is a prior art. It is installed on the bag dust collector and generates pulse wind to back-blow the first air uniforming plate 71 and the second air uniforming plate 72 through the dust removal bag 3 to clean it. This can avoid the dirt adsorbed by the first air uniforming plate 71 and the second air uniforming plate 72 from being stubborn and incompletely cleaned.

[0023] Specifically, an annular cavity 16 is formed in the fixed frame 10, and a plurality of connecting holes 17 are spaced apart on the inner periphery of the fixed frame 16. The connecting holes 17 are respectively connected to the annular cavity 16 and the cooling cavity 9. The bottoms of the opposite ends of the two fixed frames 10 are respectively fixedly connected with a first liquid inlet pipe 18 and a second liquid inlet pipe 19. One end of the first liquid inlet pipe 18 and the second liquid inlet pipe 19 are respectively fixedly connected to the annular cavity 16 of the two fixed frames 10, and the other ends of the first liquid inlet pipe 18 and the second liquid inlet pipe 19 pass through the side wall of the dust removal housing 1 to the outside world. The first liquid inlet pipe 18 and the second liquid inlet pipe 19 are respectively fixedly connected to the annular cavity 16 of the two fixed frames 10. The tube 19 is a hose, and the outer ends of the first liquid inlet pipe 18 and the second liquid inlet pipe 19 are connected to an external suction device. The external cooling liquid can be sucked into the annular cavity 16 and the cooling cavity 9 through the external suction device, or the cooling liquid after heat exchange in the cooling cavity 9 and the annular cavity 16 can be extracted and replaced through the external suction device. The suction device is operated by an existing suction pump. The first liquid inlet pipe 18 and the second liquid inlet pipe 19 are set as hoses because when the second air uniforming plate 72 moves left and right, it will drive the second liquid inlet pipe 19 to move, and the material must be a hose to achieve this.

[0024] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A bag dust collector for a biomass boiler, comprising a partition fixedly mounted inside a dust collection housing, a plurality of spaced dust collection bags fixedly mounted on the partition, an air outlet pipe and an air inlet pipe fixedly connected to the upper right and lower left sides of the dust collection housing, respectively, and a sewage pipe fixedly connected to the bottom of the dust collection housing, characterized in that: A cooling and evenly distributing air plate for evenly dispersing the gas and cooling the gas is provided inside the dust removal shell and below the dust removal bag. The cooling and evenly distributing air plate is installed on the inner wall of the dust removal shell and is located above the air inlet pipe. A number of evenly distributed through holes are vertically penetrated along the cooling and evenly distributing air plate. A cooling cavity for storing cooling liquid is formed inside the cooling and evenly distributing air plate. A cleaning mechanism for cleaning dust adhered to the bottom surface of the cooling and evenly distributing air plate is provided in the dust removal shell.

2. The bag filter for biomass boiler according to claim 1, characterized in that: The cooling air-distributing plate includes a first air-distributing plate and a second air-distributing plate, and the outer peripheries of the first air-distributing plate and the second air-distributing plate are respectively fixedly installed with a fixing frame, and the interiors of the first air-distributing plate and the second air-distributing plate are respectively formed with the cooling cavity, and the cooling cavity is not connected to the through hole, and the fixing frame of the first air-distributing plate is fixedly installed on the left side of the interior of the dust-removing shell, and the fixing frame of the second air-distributing plate is arranged on the right side of the interior of the dust-removing shell, and the first air-distributing plate and the second air-distributing plate are staggered up and down, and the top surface of the left end of the fixing frame of the second air-distributing plate is sealed with the bottom surface of the right end of the fixing frame of the first air-distributing plate.

3. The bag filter for biomass boiler according to claim 2, characterized in that: The cleaning mechanism includes a scraper fixedly mounted on the left end of the second air-leveling plate, the scraper abuts against the bottom surface of the first air-leveling plate, a scraper strip is provided below the second air-leveling plate, the front and rear ends of the scraper strip are fixedly connected to the inner wall of the dust-removing shell, the scraper strip abuts against the bottom surface of the second air-leveling plate, the fixing frame of the second air-leveling plate is sealingly and slidingly connected to the inner wall of the dust-removing shell, the right end of the fixing frame of the second air-leveling plate is fixedly connected to the limiting plate, the limiting plate abuts against the inner wall of the dust-removing shell, the right end of the limiting plate is fixedly connected to a baffle, and the baffle slides through the right side of the dust-removing shell.

4. The bag filter for biomass boiler according to claim 3 is characterized by: An electric telescopic rod is provided below the baffle and is fixedly mounted on the side of the dust removal housing. The telescopic end of the electric telescopic rod passes through the side wall of the dust removal housing and is fixedly connected to the limiting plate.

5. The bag filter for biomass boiler according to claim 4, characterized in that: An annular cavity is formed in the fixed frame, and a plurality of connecting holes are respectively spaced apart on the inner periphery of the fixed frame, and the connecting holes are respectively connected to the annular cavity and the cooling cavity, and the bottoms of the opposite ends of the two fixed frames are fixedly connected with a first liquid inlet pipe and a second liquid inlet pipe, respectively. One end of the first liquid inlet pipe and the second liquid inlet pipe are respectively fixedly connected to the annular cavities of the two fixed frames, and the other ends of the first liquid inlet pipe and the second liquid inlet pipe pass through the side wall of the dust removal shell to the outside world, and the first liquid inlet pipe and the second liquid inlet pipe are hoses, and the outer ends of the first liquid inlet pipe and the second liquid inlet pipe are connected to the external suction equipment.

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