Dust collector with corrosion-resistant effect

Abstract

The utility model relates to dust removal equipment technical field discloses a dust remover with corrosion -resistant effect, including lower box, the upper box is equipped with lower box upper portion, the upper portion is equipped with the flower board in lower box, the lower portion is equipped with a plurality of filter bags of flower board lower portion, the side surface of lower box is equipped with the air inlet that communicates with its inside, the upper portion is equipped with the gas outlet of upper box, the lower portion is equipped with the ash outlet of lower box, the lower portion is equipped with the support column for supporting of lower box, the upper portion is equipped with the soot blowing unit that communicates with outside and is used for blowing soot to filter bag of flower board, and the flower board is all made of glass steel material of lower box, upper box, flower board and soot blowing unit, and the whole lower box and upper box are cylindrical. In the utility model, through setting up the box, the upper box, the flower board and the soot blowing unit are all made of glass steel material, the glass steel has strong corrosion resistance, can resist acid, alkali, salt and organic solvent corrosion, improves the overall corrosion -resistant effect of the dust remover, and then prolongs the service life of the dust remover.

Description

Technical Field

[0001] This utility model relates to the field of dust removal equipment technology, specifically a dust collector with corrosion resistance. Background Technology

[0002] A bag filter is a device for treating dust-laden pollutants in gas emissions. It can effectively reduce the emission of dust particles in the gas and is widely used in many industries. The working principle of a bag filter is that dust-laden gas passes through the filter material, and the dust particles are filtered out. The filter material captures coarse dust particles mainly through inertial collision, and captures fine dust particles mainly through diffusion and sieving.

[0003] A search revealed a patent, CN219502232U, which discloses a corrosion-resistant baghouse dust collector. The collector includes a storage silo; a baghouse chamber connected to the upper end of the storage silo; and a clean air system located above the baghouse chamber and electrically connected to it. The storage silo has an air inlet, and the clean air system has an air outlet. The collector further includes: a first asphalt sheet attached to the inner wall of the storage silo; a second asphalt sheet attached to the inner wall of the baghouse chamber; the bottom end of the first asphalt sheet and the top end of the second asphalt sheet are connected and fastened together; a fixing structure is pressed against the inner walls of the first and second asphalt sheets. The fixing structure has an upper pressing member pressing against the inner wall of the first asphalt sheet, a lower pressing member pressing against the inner wall of the second asphalt sheet, and a pressing arm connecting the upper and lower pressing members. The pressing arm is tightly attached to the inner wall of the first asphalt sheet. The upper and lower pressing members are the same size. Compared to a metal inner wall, the asphalt structure is more corrosion-resistant, and the service life of the dust collector can be extended by replacing the asphalt layer after prolonged use.

[0004] The aforementioned patents have significant beneficial effects, but in practical application, they still have the following shortcomings:

[0005] The main structure of dust collectors is mostly made of carbon steel, and the interior can be coated with anti-rust paint. In environments with slight corrosion, the main structure can be made of stainless steel. The internal components of the dust collector are made of stainless steel, alloy steel, etc., depending on the degree of corrosion. However, the above-mentioned dust collectors generally have disadvantages such as poor corrosion resistance, short service life, and rust contamination of collected dust, which makes it impossible to reuse the dust. Therefore, there is an urgent need in this field to improve dust collectors in order to solve the defects of the existing technology. Utility Model Content

[0006] In view of the shortcomings of the existing technology, this utility model provides a dust collector with corrosion resistance, which improves the overall corrosion resistance of the dust collector and extends its service life.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a dust collector with corrosion resistance, comprising a lower housing, an upper housing above the lower housing, a tube sheet inside the upper part of the lower housing, several filter bags below the tube sheet, an air inlet communicating with the interior of the lower housing on its side, an air outlet at the top of the upper housing, a dust outlet at the bottom of the lower housing, a support column for support below the lower housing, and a dust blowing unit communicating with the outside and used for blowing dust off the filter bags above the tube sheet. The lower housing, upper housing, tube sheet, and dust blowing unit are all made of fiberglass, and the lower housing and upper housing are cylindrical in shape.

[0008] Preferably, the soot blowing unit includes several circular connecting pipes and blow pipes located above the tube sheet and adapted to the positions of several filter bags. A connecting pipe that communicates with the several circular connecting pipes and blow pipes is passed through the side of the upper box body. Several venturi tubes adapted to the positions of the filter bags are provided at the lower part of the connecting pipes and the circular connecting pipes and blow pipes.

[0009] Preferably, it also includes several bag cages installed under the tube sheet. The bag cages are fiberglass cylinders wound together and have openings on the sides. Filter bags are fitted onto the sides of the bag cages.

[0010] Preferably, the side of the bag cage is provided with a limiting protrusion adapted to the tube sheet, the upper end of the bag cage extends beyond the upper part of the tube sheet and is engaged with an elastic locking ring, the upper side of the bag cage is provided with a locking protrusion adapted to the locking ring, and the upper side of the filter bag is provided with a fixing clamp for fixing the filter bag.

[0011] Preferably, the inner side wall of the upper end of the lower housing is provided with a snap-fit ​​platform, which is adapted to the perforated plate.

[0012] Preferably, an air inlet pipe is fixedly installed on the side of the lower housing, the air inlet is located on the side of the air inlet pipe, the air inlet pipe surrounds the lower housing and is tangent to the lower housing, and the internal width of the air inlet pipe decreases in an arithmetic sequence along the air intake direction of the lower housing circumference.

[0013] Preferably, the lower housing and the upper housing are provided with connecting flanges on the upper side and the lower housing respectively. The lower housing and the upper housing are sealed together by the connecting flanges, and an elastic sealing ring is embedded between the two connecting flanges.

[0014] Preferably, an inspection door is provided on the upper side of the upper housing, and the inspection door is connected to the interior of the upper housing.

[0015] To address the shortcomings of existing technologies, this utility model provides a dust collector with corrosion resistance, overcoming the deficiencies of the prior art. The beneficial effects of this utility model are as follows:

[0016] 1. In this utility model, the housing, upper housing, tube sheet, and dust blowing unit are all made of fiberglass. Fiberglass has strong corrosion resistance and can resist corrosion from acids, alkalis, salts, and organic solvents, thereby improving the overall corrosion resistance of the dust collector and extending its service life. Furthermore, the lower and upper housings are constructed using a hand lay-up molded fiberglass conical structure, resulting in a smooth internal shape for the entire dust collector. This reduces the amount of residual dust inside the dust collector and facilitates uniform airflow distribution and improved filtration accuracy.

[0017] 2. In this utility model, by setting a bag cage with openings, and the bag cage being installed on the tube sheet by the cooperation of limiting protrusions and snap rings, it is convenient to tension and position the filter bag, and also convenient to install and fix the bag cage.

[0018] 3. In this utility model, the installation and removal of the tube sheet is facilitated by setting a snap-fit ​​platform, and the two connecting flanges facilitate large-scale maintenance of the lower or upper chamber in the later stage. The air inlet pipe tangent to the side of the lower chamber reduces the impact force of gas entering the lower chamber on filter bags and other filter components, thereby extending the service life of the overall dust collector.

[0019] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of this invention can be realized and obtained by means of the structures pointed out in the description, claims, and drawings. Attached Figure Description

[0020] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0021] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0022] Figure 2 This is a schematic cross-sectional view of the present invention.

[0023] Figure 3 This is a schematic diagram of the lower housing of this utility model;

[0024] Figure 4 This is a cross-sectional structural diagram of the air inlet pipe in this utility model;

[0025] Figure 5 for Figure 2 Enlarged structural diagram at point A in the middle;

[0026] Figure 6 for Figure 2 Enlarged structural diagram at point B;

[0027] Figure 7 for Figure 3 Enlarged structural diagram at point C.

[0028] In the diagram: 1. Lower housing; 2. Upper housing; 3. Tube plate; 4. Filter bag; 5. Air inlet; 6. Air outlet; 7. Ash outlet; 8. Support column; 9. Connecting pipe; 10. Circular connecting pipe / blowpipe; 11. Venturi tube; 12. Bag cage; 13. Limiting protrusion; 14. Snap-fit ​​ring; 15. Fixing clamp; 16. Snap-fit ​​platform; 17. Air inlet pipe; 18. Connecting flange; 19. Sealing ring; 20. Inspection door; 21. Snap-fit ​​protrusion. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1

[0031] Please see Figures 1-7 A dust collector with corrosion resistance includes a lower housing 1, an upper housing 2 on top of the lower housing 1, a tube sheet 3 inside the upper part of the lower housing 1, several filter bags 4 below the tube sheet 3, an air inlet 5 communicating with the interior of the lower housing 1 on its side, an air outlet 6 on the upper part of the upper housing 2, a dust outlet 7 at the bottom of the lower housing 1, a support column 8 at the bottom of the lower housing 1 for support, and a dust blowing unit above the tube sheet 3 communicating with the outside for blowing dust off the filter bags 4. The lower housing 1, upper housing 2, tube sheet 3, and soot blowing unit are all made of fiberglass. The lower housing 1 and upper housing 2 are cylindrical in shape. The soot blowing unit includes several circular connecting pipes 10 located above the tube sheet 3 and adapted to the positions of several filter bags 4. The upper housing 2 has a connecting pipe 9 that connects to several circular connecting pipes 10 through its side. The connecting pipe 9 and the circular connecting pipes 10 have several Venturi tubes 11 at the bottom that are adapted to the positions of the filter bags 4.

[0032] In this embodiment, the specific implementation is as follows: When the dust collector removes dust from the gas, the gas to be filtered is introduced into the lower chamber 1 through the air inlet 5, which is located below the tube sheet 3. After entering the lower chamber 1, the gas floats upward and passes through the filter bag 4 to filter the particulate impurities contained in the gas. The filtered gas passes through the tube sheet 3 and continues to rise, and is discharged through the air outlet 6. The filtered particulate impurities fall to the lower part of the lower chamber 1 or are adsorbed on the side of the filter bag 4. After filtering the gas for a long time, the air inlet 5 is closed, and the gas generating device connected to the connecting pipe 9 is turned on. High-pressure gas is delivered through the connecting pipe 9 to several interconnected circular connecting pipes and blowpipes. Within the 10 chamber, several filter bags 4 are subjected to pulse dust removal through the Venturi tube 11 to clean the filter bags 4 and achieve gas filtration. The aforementioned lower chamber 1, upper chamber 2, tube sheet 3, support column 8, and circular connecting pipe / blowpipe 10 are all made of fiberglass. Fiberglass has strong corrosion resistance and can resist corrosion from acids, alkalis, salts, and organic solvents, improving the overall corrosion resistance of the dust collector and extending its service life. Furthermore, the lower chamber 1 and upper chamber 2 adopt a hand lay-up molded fiberglass conical structure, making the interior of the dust collector smooth, reducing the amount of residual dust inside the dust collector, and facilitating uniform airflow distribution and filtration accuracy.

[0033] Example 2

[0034] Please see Figure 5 and Figure 7 This embodiment includes the above embodiment, and further includes: several bag cages 12 installed at the lower part of the tube sheet 3. The bag cage 12 is a fiberglass cylinder wound and has openings on the side. The filter bag 4 is sleeved on the side of the bag cage 12. The side of the bag cage 12 is provided with a limiting protrusion 13 adapted to the tube sheet 3. The upper end of the bag cage 12 extends beyond the upper part of the tube sheet 3 and is snapped with an elastic snap ring 14. The upper side of the bag cage 12 is provided with a snap protrusion 21 adapted to the snap ring 14. The upper side of the filter bag 4 is provided with a fixing clamp 15 for fixing the filter bag 4.

[0035] In this embodiment, the bag cage 12 is made of fiberglass cylinder formed by winding. The openings on the surface of the bag cage 12 are made by laser engraving. During installation, the upper end of the bag cage 12 is inserted into the mounting hole opened by laser engraving on the tube sheet 3. The limiting protrusion 13 is in close contact with the lower part of the tube sheet 3. The snap ring 14 is aligned with the upper part of the bag cage 12. The snap ring 14 is pressed down and snapped with the snap protrusion 21, thus completing the installation of the bag cage 12. The filter bag 4 is placed on the surface of the bag cage 12 and the upper part of the filter bag 4 is fixed by the fixing clamp 15 in the prior art, which facilitates the tensioning and positioning of the filter bag 4 and the installation and fixing of the bag cage 12.

[0036] Example 3

[0037] Please see Figure 3 , Figure 4 and Figure 6 This embodiment includes all the above embodiments, and further includes: a snap-fit ​​platform 16 is provided on the inner side wall of the upper end of the lower box 1, the snap-fit ​​platform 16 is adapted to the tube sheet 3, an air inlet pipe 17 is fixedly installed on the side of the lower box 1, an air inlet 5 is provided on the side of the air inlet pipe 17, the air inlet pipe 17 surrounds the lower box 1 and is tangent to the lower box 1, the width of the air inlet pipe 17 decreases in an arithmetic sequence along the circumferential air intake direction of the lower box 1, a connecting flange 18 is provided on the upper side of the lower box 1 and the lower side of the upper box 2, the lower box 1 and the upper box 2 are sealed and connected by the connecting flange 18, an elastic sealing ring 19 is embedded between the sides of the two connecting flanges 18, and an inspection door 20 is provided on the upper side of the upper box 2, the inspection door 20 is connected to the interior of the upper box 2.

[0038] In this embodiment, the tube sheet 3 is installed by snapping it into the snap-fit ​​platform 16 on the upper side wall of the lower housing 1. Then, the sealing ring 19 is embedded in one of the connecting flanges 18. The two connecting flanges 18 are connected by existing fasteners. The sealing ring 19 provides a sealing effect. At the same time, the lower end of the upper housing 2 is pressed against the upper part of the tube sheet 3 to fix the tube sheet 3. The setting of the two connecting flanges 18 facilitates large-scale maintenance of the lower housing 1 or the upper housing 2 in the future. At the same time, the inspection door 20 is set to facilitate small-scale maintenance of the interior of the upper housing 2. By setting the air inlet pipe 17 tangent to the side of the lower housing 1, when the gas enters through the air inlet 5, the gas flows along the circumference of the lower housing 1. The width of the air inlet pipe 17 decreases in an arithmetic sequence along the air inlet direction of the lower housing 1, which reduces the impact force of the gas entering the lower housing 1 on the filter bag 4 and other filter components, thereby extending the service life of the overall dust collector.

[0039] Finally, it should be noted that in the description of this utility model, the terms "vertical," "upper," "lower," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0040] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0041] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dust collector with corrosion resistance, characterized in that, The lower box (1) is provided with an upper box (2) on the upper part of the lower box (1), a tube sheet (3) is provided in the upper part of the lower box (1), several filter bags (4) are provided in the lower part of the tube sheet (3), an air inlet (5) is provided on the side of the lower box (1) and communicates with its interior, an air outlet (6) is provided in the upper part of the upper box (2), an ash outlet (7) is provided in the lower part of the lower box (1), a support column (8) is provided below the lower box (1) for support, and a ash blowing unit is provided above the tube sheet (3) for communicating with the outside and for blowing ash on the filter bags (4). The lower box (1), upper box (2), tube sheet (3) and ash blowing unit are all made of fiberglass. The lower box (1) and upper box (2) are cylindrical in shape. The soot blowing unit includes several circular connecting pipes (10) located above the tube sheet (3) and adapted to the positions of several filter bags (4). A connecting pipe (9) connected to several circular connecting pipes (10) is passed through the side of the upper box (2). Several venturi tubes (11) adapted to the positions of filter bags (4) are provided at the lower part of the connecting pipe (9) and the circular connecting pipes (10). It also includes several bag cages (12) installed under the tube sheet (3). The bag cage (12) is a fiberglass cylinder wound and has openings on the side. The filter bag (4) is fitted on the side of the bag cage (12). The bag cage (12) has a limiting protrusion (13) on its side that is compatible with the tube sheet (3). The upper end of the bag cage (12) extends beyond the upper part of the tube sheet (3) and is snapped with an elastic snap ring (14). The upper side of the bag cage (12) has a snap protrusion (21) that is compatible with the snap ring (14). The upper side of the filter bag (4) has a fixing clamp (15) for fixing the filter bag (4). An air inlet pipe (17) is fixedly installed on the side of the lower box (1). The air inlet (5) is located on the side of the air inlet pipe (17). The air inlet pipe (17) surrounds the lower box (1) and is tangent to the lower box (1). The internal width of the air inlet pipe (17) decreases in an arithmetic sequence along the circumference of the lower box (1) in the direction of air intake.

2. A dust collector with corrosion resistance according to claim 1, characterized in that, The inner side wall of the upper end of the lower box (1) is provided with a snap-fit ​​platform (16), which is compatible with the flower plate (3).

3. A dust collector with corrosion resistance according to claim 1, characterized in that, The lower box (1) and the upper box (2) are provided with connecting flanges (18). The lower box (1) and the upper box (2) are sealed together by connecting flanges (18). An elastic sealing ring (19) is embedded between the sides of the two connecting flanges (18).

4. A dust collector with corrosion resistance according to claim 1, characterized in that, The upper side of the upper housing (2) is provided with an inspection door (20), which is connected to the interior of the upper housing (2).

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