A fan filter screen with a filter cartridge that is easy to replace

Abstract

A fan filter screen convenient to replace filter element relates to a device for air filtering and filter element installation at a fan air inlet of an SCR continuous casting and rolling production line, comprising a bottom flange, an outer layer stainless steel filter screen and an inner layer stainless steel filter screen, the outer layer stainless steel filter screen is internally provided with the inner layer stainless steel filter screen, the bottom ends of the outer layer stainless steel filter screen and the inner layer stainless steel filter screen are fixedly arranged at the top end of a connecting piece, the upper side of the connecting piece protects the outer layer stainless steel filter screen, the bottom side of the connecting piece is welded to the upper side of the bottom flange, the upper side of the outer layer stainless steel filter screen is covered with a filter screen gland, three sets of limiting pieces are mounted at the side of the outer layer stainless steel filter screen, the outer layer stainless steel filter screen is connected with the filter screen gland through the limiting pieces, suspended particulate matters in air are effectively filtered, the cleanliness of fan air supply is significantly improved, and the internal dust accumulation of equipment is reduced, in addition, the structural design of the device allows the user to disassemble the filter element at any time, and facilitates troubleshooting and cleaning and maintenance.

Description

Technical Field

[0001] A removable filter element type fan filter device for the air inlet of a fan. This relates to a device for air filtration and filter element installation at the air inlet of a fan in an SCR continuous casting and rolling production line. Background Technology

[0002] In each combustion stage of the SCR continuous casting and rolling production line, the combustion of natural gas in each area requires a large amount of air. The large amount of air required for combustion is supplied by five spiral blowers. The air inlet of the blower is a flange design. The complete set of equipment is only equipped with a mesh coarse filter device at the air inlet when it leaves the factory. This device can only block large foreign objects in the environment from being sucked into the blower. It cannot filter dust, fibrous debris, and pollutants in the air, which causes a large amount of ash and blockage to be brought into the equipment. Therefore, the branch company personnel carefully designed a detachable filter element type blower filter device based on the existing blower structure. The aim is to improve the cleanliness of the air supplied by the blower, reduce ash accumulation and blockage in the equipment, and at the same time improve the service life of the equipment and improve the process quality. Utility Model Content

[0003] The purpose of this invention is to improve the cleanliness of the air supplied by the fan, thereby reducing equipment wear and tear while improving process quality.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a fan filter screen that facilitates filter element replacement, comprising a bottom flange, an outer stainless steel filter screen, and an inner stainless steel filter screen. The inner stainless steel filter screen is disposed inside the outer stainless steel filter screen. The bottom ends of the outer and inner stainless steel filter screens are fixed to the top of a connector. The upper side of the connector protects the outer stainless steel filter screen. The bottom side of the connector is welded to the upper side of the bottom flange. A filter screen cover is provided on the upper side of the outer stainless steel filter screen. Three sets of limiting members are installed on the side of the outer stainless steel filter screen. The outer stainless steel filter screen is connected to the filter screen cover through the limiting members.

[0005] Preferably, the bottom ends of the outer stainless steel filter screen and the inner stainless steel filter screen are welded and fixed to the connector, and the outer stainless steel filter screen is fixed with limiting members at equal distances on its sides.

[0006] Preferably, the single set of limiting components includes a locking component and a locking component, and the locking component has a locking component on its bottom side.

[0007] Preferably, the locking element includes a locking stop block and a locking body. The locking stop block is fixed to the side of the filter cover, and the locking body is fixed to the side of the outer stainless steel filter screen. The locking body is connected to the vertically corresponding locking stop block.

[0008] Preferably, the locking component includes a fixing plate and two sets of side blocks. The side blocks are fixed on both sides of the front end of the fixing plate. A rotating post is inserted into the center of the side block. A buckle is fixed in the center of the rotating post. The top of the buckle rotates and locks the bottom end of the locking body.

[0009] Preferably, the connector includes a fixing ring block and uprights. An outer stainless steel filter screen and an inner stainless steel filter screen are fixed on the upper side of the fixing ring block, and seven sets of uprights are provided on the outer side of the fixing ring block.

[0010] Preferably, cylindrical blocks are fixed at equal intervals on the sides of the fixing ring block, and each cylindrical block has a threaded hole inside. A vertical rod is inserted into the threaded hole, and seven sets of vertical rods surround the protective outer stainless steel filter screen.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This fan filter, which facilitates filter element replacement, effectively filters suspended particulate matter in the air, such as dust, lint, and debris, through an inner and outer stainless steel filter screen welded and fixed to the top of the connector. This significantly improves the cleanliness of the air supplied by the fan, reduces dust accumulation inside the equipment, and thus enhances the overall cleanliness level. The locking mechanism allows for a tight connection of the filter screen cover, improving stability. The bottom flange connected to the connector allows for the installation and removal of flange-type air inlet fans. This design facilitates easy removal of the filter element by the user, making troubleshooting and cleaning maintenance convenient.

[0013] This fan filter screen, which facilitates filter element replacement, features a locking mechanism that further limits the locking mechanism, thereby improving the temperature control of the filter screen cover connecting the inner and outer stainless steel filter screens and enhancing the applicability of the device. The seven sets of uprights surrounding the outer stainless steel filter screen, provided by the connector, provide effective protection and improve the safety of the device. Attached Figure Description

[0014] Figure 1 This is a front view schematic diagram of the present utility model;

[0015] Figure 2 This is a top view of the present invention;

[0016] Figure 3 This is a front view of the unfolded part of this utility model;

[0017] Figure 4 This is a schematic diagram of the connector structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the limiting component structure of this utility model.

[0019] In the diagram: 1. Bottom flange; 2. Outer stainless steel filter screen; 3. Inner stainless steel filter screen; 4. Connector; 41. Fixing ring block; 411. Cylindrical block; 412. Threaded hole; 42. Upright rod; 5. Filter screen cover; 6. Limiting component; 61. Locking component; 611. Locking stop block; 612. Locking body; 62. Clip; 621. Fixing plate; 622. Side block; 623. Rotating column; 624. Buckle. Detailed Implementation

[0020] 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.

[0021] Please see Figures 1-5 One embodiment provided by this utility model:

[0022] A fan filter screen with easy filter element replacement includes a bottom flange 1, an outer stainless steel filter screen 2, and an inner stainless steel filter screen 3. The inner stainless steel filter screen 3 is installed inside the outer stainless steel filter screen 2. The bottom ends of the outer stainless steel filter screen 2 and the inner stainless steel filter screen 3 are fixed to the top of the connector 4. The upper side of the connector 4 protects the outer stainless steel filter screen 2. The bottom side of the connector 4 is welded to the upper side of the bottom flange 1. The upper side of the outer stainless steel filter screen 2 is covered with a filter screen cover 5. Three sets of limiting members 6 are installed on the side of the outer stainless steel filter screen 2. The outer stainless steel filter screen 2 is connected to the filter screen cover 5 through the limiting members 6.

[0023] As a further feature of this invention, the bottom ends of the outer stainless steel filter screen 2 and the inner stainless steel filter screen 3 are welded and fixed to the connector 4, and the outer stainless steel filter screen 2 is fixed with limiting parts 6 at equal distances on its sides, which is beneficial for quick installation and disassembly and improves efficiency.

[0024] Furthermore, the single-unit limiting component 6 includes a locking component 61 and a latching component 62. The locking component 61 has a latching component 62 on its bottom side. The locking component 61 includes a locking stop block 611 and a locking body 612. The locking stop block 611 is fixed to the side of the filter screen cover 5, and the locking body 612 is fixed to the side of the outer stainless steel filter screen 2. The locking body 612 is connected to the vertically corresponding locking stop block 611. The latching component 62 includes a fixing plate 621 and two sets of side blocks 622. The front ends of the fixing plate 621 are fixed with side blocks 622 on both sides. A rotating column 623 is inserted into the center of the side block 622. A latch 624 is fixed in the center of the rotating column 623. The top of the latch 624 rotates and latches the bottom of the locking body 612, which helps to tightly connect the filter screen cover and improve stability.

[0025] Furthermore, the connector 4 includes a fixing ring block 41 and uprights 42. An outer stainless steel filter screen 2 and an inner stainless steel filter screen 3 are fixed on the upper side of the fixing ring block 41. Seven sets of uprights 42 are provided on the outer side of the fixing ring block 41. Cylindrical blocks 411 are fixed at equal intervals on the side of the fixing ring block 41. Threaded holes 412 are opened inside each cylindrical block 411. The uprights 42 are inserted into the threaded holes 412. The seven sets of uprights 42 surround and protect the outer stainless steel filter screen 2, thereby improving the protection of the outer stainless steel filter screen and increasing its service life.

[0026] Working Principle: In use, the user first installs the bottom threads of the seven sets of uprights 42 into the threaded holes 412 at the top of the cylindrical block 411. Then, the bottom flange 1 is connected to the fan inlet with bolts, and the flange connection is sealed with an asbestos gasket. Next, the customized filter element is placed inside the welded and fixed outer stainless steel filter screen 2 and inner stainless steel filter screen 3. The filter screen cover 5 is then placed on top, and the hook end of the locking body 612 is hooked into the locking stop block 611. Then, the handle below the locking body 612 is pressed down, and the buckle 624 in the center of the side block 622 is rotated, locking the top of the buckle 624 into the handle below the locking body 612. This completes the filter element installation. During use, the filter screen and filter element effectively filter most impurities and dust in the air, providing excellent filtration. The filter element can be disassembled for cleaning or replacement as needed. The above describes the complete working principle of this utility model.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A fan filter screen with an easy-to-replace filter element, comprising a bottom flange (1), an outer stainless steel filter screen (2), and an inner stainless steel filter screen (3), characterized in that: The outer stainless steel filter screen (2) is provided with an inner stainless steel filter screen (3). The bottom ends of the outer stainless steel filter screen (2) and the inner stainless steel filter screen (3) are fixed to the top of the connector (4). The upper side of the connector (4) protects the outer stainless steel filter screen (2). The bottom side of the connector (4) is welded to the upper side of the bottom flange (1). The upper side of the outer stainless steel filter screen (2) is covered with a filter screen cover (5). Three sets of limiting pieces (6) are installed on the side of the outer stainless steel filter screen (2). The outer stainless steel filter screen (2) is connected to the filter screen cover (5) through the limiting pieces (6).

2. A fan filter screen with an easy-to-replace filter element according to claim 1, characterized in that: The bottom ends of the outer stainless steel filter (2) and the inner stainless steel filter (3) are welded and fixed on the connector (4), and the outer stainless steel filter (2) is fixed with limiting members (6) at equal distances on its sides.

3. A fan filter screen with an easy-to-replace filter element according to claim 1, characterized in that: The single set of limiting member (6) includes a locking member (61) and a locking member (62), and the locking member (61) is provided with the locking member (62) on its bottom side.

4. A fan filter screen with an easy-to-replace filter element according to claim 3, characterized in that: The locking component (61) includes a locking stop (611) and a locking body (612). The locking stop (611) is fixed to the side of the filter cover (5), and the locking body (612) is fixed to the side of the outer stainless steel filter (2). The locking body (612) is connected to the vertically corresponding locking stop (611).

5. A fan filter screen with an easy-to-replace filter element according to claim 3, characterized in that: The fastener (62) includes a fixed plate (621) and two sets of side blocks (622). The front ends of the fixed plate (621) are fixed with side blocks (622). A rotating post (623) is inserted into the center of the side block (622). A buckle (624) is fixed in the center of the rotating post (623). The top of the buckle (624) is rotated to engage with the bottom end of the locking body (612).

6. A fan filter screen with an easy-to-replace filter element according to claim 1, characterized in that: The connector (4) includes a fixing ring block (41) and uprights (42). The upper side of the fixing ring block (41) is fixed with an outer stainless steel filter screen (2) and an inner stainless steel filter screen (3). Seven sets of uprights (42) are provided on the outer side of the fixing ring block (41).

7. A fan filter screen with an easily replaceable filter element according to claim 6, characterized in that: Cylindrical blocks (411) are fixed at equal distances on the sides of the fixed ring block (41). Threaded holes (412) are opened inside the cylindrical blocks (411). A vertical rod (42) is inserted into the threaded hole (412). The seven sets of vertical rods (42) surround the protective outer stainless steel filter screen (2).

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