Magnesia dust removal equipment convenient for replacing filter screen

Abstract

The utility model discloses magnesite dust removal equipment convenient to replace a filter screen, which relates to the technical field of magnesite processing and comprises a dust removal equipment body, a cabin door is rotatably connected to the side wall of the dust removal equipment body, and a dust removal filter screen is slidably arranged on the inner wall surface of the dust removal equipment body. Angle block guide grooves are formed in the upper wall face and the lower wall face of the interior of the dust removal equipment body respectively, an impurity guide part is arranged on the lower wall face of the interior of the dust removal equipment body, the sliding pressing block is driven by the air cylinder to slide on the sliding dip angle, and therefore the guide angle blocks can be disassembled and assembled; the guide angle block is driven to descend along the angle block guide groove, the sealing strip is tightly attached to the dust removal equipment body, the sealing performance is improved, impurities and floating ash at the root of the dust removal filter screen are guided into the dust removal filter screen to be filtered through the guide angle block, and it is avoided that impurity accumulation at the root of the dust removal filter screen increases the disassembly difficulty.

Description

Technical Field

[0001] This utility model relates to the field of magnesium sand processing technology, specifically to a magnesium sand dust removal device that facilitates filter screen replacement. Background Technology

[0002] Magnesia is a refractory raw material with magnesium oxide as its main component. It is widely used in industries such as steel, non-ferrous metals, glass, and ceramics. It can be used to make blast furnace refractory bricks, converter lining bricks, and electric furnace bottom materials. It is also used to produce high-end refractory products such as magnesia-carbon bricks and magnesia-alumina spinel bricks. It is an indispensable basic material for industrial high-temperature kilns and smelting equipment, and is crucial to ensuring the stability of high-temperature production processes. During the processing of magnesia, a large amount of dust is generated, so dust removal equipment is required.

[0003] For example, utility model patent CN222816484U discloses a dust removal device for magnesia processing, including a support base, a dust removal frame fixedly connected to the top of the support base, a dust suction mechanism provided at the right end of the dust removal frame, a filter frame inserted into the inner wall of the dust removal frame, a wedge block elastically connected to the bottom inner wall of the dust removal frame via a return spring, an elastic telescopic rod fixedly connected to the inner side wall of the dust removal frame, a baffle plate slidably connected to the outer wall of the dust removal frame, an insert block slidably connected to the inner wall of the baffle plate, and a controller provided at the top of the dust removal frame. In this utility model, by inserting a new filter frame into the dust removal frame, the new filter frame squeezes and moves against the wedge block, causing the wedge block to separate from the old filter frame. The elastic force of the telescopic rod pushes out the old filter frame, eliminating the need to stop the machine to replace the filter frame. This is simple and convenient in actual operation and improves the dust removal effect to a certain extent.

[0004] However, once the dust removal equipment is started, some impurities tend to accumulate in the gap between the base of the dust filter and the inner wall of the equipment, increasing the difficulty of disassembling the dust filter later. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a magnesium abrasive dust removal device that facilitates filter replacement. It solves the technical problem that when the dust removal device is started, some impurities tend to accumulate in the gap between the root of the dust removal filter and the inner wall of the device, increasing the difficulty of subsequent disassembly of the dust removal filter.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a magnesium abrasive dust removal device that facilitates filter replacement, comprising a dust removal device body, a door rotatably connected to the side wall of the dust removal device body, a dust removal filter slidably disposed on the inner wall of the dust removal device body, corner block guide grooves respectively formed on the upper and lower walls inside the dust removal device body, and an impurity guide part provided on the lower wall inside the dust removal device body; the impurity guide part, from top to bottom, consists of a flow direction guide groove for guiding the flow of impurities at the root of the dust removal filter, a support groove for guiding the disassembly and assembly of the dust removal filter, and an anti-cavity groove to prevent impurities from accumulating in the support groove, wherein the width of the anti-cavity groove is greater than that of the flow direction guide groove, and a guide inclination angle is formed on the lower wall of the support groove; an impurity guide structure is slidably connected in one of the corner block guide grooves.

[0007] Preferably, the impurity guiding structure includes a guide corner block and a guide slider. The guide slider is fixedly installed on the lower wall of the guide corner block and is slidably connected to the corner block guide groove. The connecting end of the guide slider has a sliding tilt angle. The guide corner block can guide the dust-laden airflow falling during the dust removal process, preventing impurities from accumulating in the gap between the dust removal filter and the inner wall of the equipment. The cooperation between the guide slider and the corner block guide groove ensures the stability of the guide corner block when sliding, and the sliding tilt angle provides an adaptation structure for subsequent connection with the drive component, facilitating the position adjustment of the guide corner block.

[0008] Preferably, a driving groove is provided in the corner block guide groove, and a cylinder is fixedly installed in the driving groove. A sliding pressure block is fixedly connected to the driving end of the cylinder, and the sliding pressure block is connected to the guide slider at a sliding angle. When the cylinder drives the sliding pressure block to move in the driving groove, the sliding pressure block can convert the horizontal driving force into a force that drives the guide slider to slide along the corner block guide groove through contact with the guide slider at the sliding angle, thereby realizing the automatic adjustment of the guide corner block.

[0009] Preferably, the lower wall of the guide corner block is provided with two fixing grooves, and a sealing strip is fixedly installed in each of the two fixing grooves; the sealing strip can fill the gap between the guide corner block and the top of the dust removal filter screen, preventing unfiltered airflow containing magnesium sand impurities from bypassing the dust removal filter screen through the gap and ensuring the filtration accuracy of the dust removal equipment, while preventing impurities from entering the guide groove of the corner block and affecting the sliding performance of the guide corner block.

[0010] Preferably, two sets of support rods are fixedly installed on both sides of the dust filter screen, and the two sets of support rods are respectively connected in the support groove through support sliders; the support rods provide structural support for the dust filter screen, and the sliding cooperation between the support sliders and the support grooves provides guidance for the installation and removal of the dust filter screen. The staff only needs to push the dust filter screen along the support grooves to complete the installation and removal, which greatly simplifies the filter screen replacement process.

[0011] Preferably, a storage trough is provided below the clearance trough, and an impurity storage box is slidably installed in the storage trough; the magnesium sand impurities accumulated in the clearance trough can fall naturally into the impurity storage box below, realizing the centralized collection of impurities. The sliding connection design between the impurity storage box and the storage trough makes it convenient for staff to regularly pull out the storage box to clean the impurities.

[0012] Preferably, the assembly end of the impurity storage box is provided with an assembly chamfer for easy assembly, and the inside of the impurity storage box is provided with an auxiliary rounded corner for easy cleaning; the assembly chamfer can guide the impurity storage box to be quickly and accurately inserted into the storage slot, avoiding assembly difficulties due to alignment deviation; the auxiliary rounded corner can prevent magnesium sand impurities from accumulating at the corners of the inner wall of the storage box, and the staff can easily pour out the impurities when cleaning, reducing cleaning dead corners.

[0013] Beneficial effects:

[0014] This utility model provides a magnesium abrasive dust removal device that facilitates filter replacement, and has the following beneficial effects:

[0015] The cylinder drives the sliding block to slide on the sliding angle, so that the guide corner block can be disassembled and assembled. When the sliding block moves to the sliding angle, it drives the guide corner block to descend along the corner block guide groove, so that the sealing strip is tightly attached to the dust removal equipment body to increase the sealing performance. The guide corner block guides the impurities and floating dust at the root of the dust removal filter screen to the dust removal filter screen for filtration, avoiding the accumulation of impurities at the root of the dust removal filter screen and increasing the difficulty of disassembly.

[0016] When the dust-laden airflow passes through the guide corner block and then through the dust collector filter, impurities and floating dust fall down along the flow direction guide groove and will not accumulate at the edge of the dust collector filter. This solves the problem that when the dust removal equipment is started, some impurities tend to accumulate at the base of the dust collector filter and in the gap between the equipment and the inner wall, increasing the difficulty of disassembling the dust collector filter later. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the main structure of the dust removal equipment of this utility model;

[0019] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0020] Figure 4 This is a schematic diagram of the guide corner block structure of this utility model;

[0021] Figure 5 This is a schematic diagram of the dust removal filter structure of this utility model.

[0022] In the diagram: 1. Dust removal equipment body; 2. Door; 3. Dust filter; 4. Corner block guide groove; 5. Flow direction guide groove; 6. Support groove; 7. Clearance groove; 8. Guide tilt angle; 9. Guide corner block; 10. Guide slider; 11. Sliding tilt angle; 12. Drive groove; 13. Sliding pressure block; 14. Fixing groove; 15. Sealing strip; 16. Support rod; 17. Support slider; 18. Collection groove; 19. Impurity collection box; 20. Assembly chamfer; 21. Auxiliary rounded corner; 22. Cylinder. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] Please see Figures 1-4 A magnesium abrasive dust removal device with easy filter replacement includes a dust removal device body 1, a door 2 rotatably connected to the side wall of the dust removal device body 1, a dust removal filter 3 slidably disposed on the inner wall of the dust removal device body 1, corner block guide grooves 4 respectively opened on the upper and lower walls inside the dust removal device body 1, and an impurity guide part provided on the lower wall inside the dust removal device body 1; the impurity guide part consists of, from top to bottom, a flow direction guide groove 5 for guiding the flow of impurities at the root of the dust removal filter 3, a support groove 6 for guiding the disassembly and assembly of the dust removal filter 3, and an air-avoiding groove 7 for preventing impurities from accumulating in the support groove 6, wherein the width of the air-avoiding groove 7 is greater than that of the flow direction guide groove 5, and a guide tilt angle 8 is opened on the lower wall of the support groove 6; an impurity guiding structure is slidably connected in one of the corner block guide grooves 4.

[0025] Please see Figure 4 The impurity guiding structure includes a guide corner block 9 and a guide slider 10. The guide slider 10 is fixedly installed on the lower wall of the guide corner block 9 and is slidably connected to the corner block guide groove 4. The connecting end of the guide slider 10 is provided with a sliding tilt angle 11.

[0026] Please see Figures 3-4 A drive groove 12 is provided in the corner block guide groove 4. A cylinder 22 is fixedly installed in the drive groove 12. A sliding pressure block 13 is fixedly connected to the drive end of the cylinder 22. The sliding pressure block 13 is connected to the sliding tilt angle 11 opened at the connecting end of the guide slider 10.

[0027] Please see Figure 4 The lower wall of the guide corner block 9 is provided with two fixing grooves 14, and sealing strips 15 are fixedly installed in the two fixing grooves 14 respectively.

[0028] Please see Figure 5 Two sets of support rods 16 are fixedly installed on both sides of the dust removal filter screen 3, and the two sets of support rods 16 are respectively connected to the support groove 6 through support sliders 17.

[0029] Please see Figure 3 and Figure 5 A storage slot 18 is provided below the clearance slot 7, and an impurity storage box 19 is slidably installed in the storage slot 18.

[0030] Please see Figure 5 The impurity storage box 19 has an assembly chamfer 20 at the assembly end for easy assembly, and an auxiliary rounded corner 21 inside the impurity storage box 19 for easy cleaning.

[0031] In Example 1, the cylinder 22 drives the sliding pressure block 13 to slide on the sliding angle 11, so that the guide corner block 9 can be disassembled and assembled. When the sliding pressure block 13 moves on the sliding angle 11, it drives the guide corner block 9 to descend along the corner block guide groove 4, so that the sealing strip 15 is tightly attached to the dust removal equipment body 1, increasing the sealing performance. The guide corner block 9 guides the impurities and floating dust at the root of the dust removal filter screen 3 into the dust removal filter screen 3 for filtration, avoiding the accumulation of impurities at the root of the dust removal filter screen 3 and increasing the difficulty of disassembly.

[0032] Specifically, the cylinder 22 is activated, which drives the sliding block 13 in the drive groove 12 to move along the drive groove 12 toward the guide slider 10. The end of the sliding block 13 contacts the sliding angle 11 at the connection end of the guide slider 10. As the sliding block 13 continues to advance, its horizontal thrust is guided by the inclined surface of the sliding angle 11 and converted into a force that drives the guide slider 10 to slide downward along the corner block guide groove 4. The guide slider 10 simultaneously drives the guide corner block 9 fixed on the upper wall to descend along the corner block guide groove 4 until the right angle edge of the guide corner block 9 fits into the gap area at the root of the dust removal filter screen 3. During this process, the inclined surface of the guide corner block 9 can guide the impurities and floating dust at the bottom to the filtration area of ​​the dust removal filter screen 3, avoiding the direct accumulation of impurities at the root of the filter screen. After being guided, the impurities are intercepted by the dust removal filter screen 3, or slide down along the inclined surface of the guide corner block 9 to the flow guide groove 5 below, reducing the amount of impurities accumulated at the root of the filter screen from the source and reducing the resistance to subsequent disassembly.

[0033] When the guide corner block 9 descends, the sealing strip 15 in the fixing groove 14 on its lower wall moves synchronously with the guide corner block 9. The sealing strip 15 fills the gap between the guide corner block 9 and the inner wall of the equipment and the dust filter screen 3, forming a sealing barrier. This prevents unfiltered sand and impurities from bypassing the dust filter screen 3 and being discharged directly through the gap, ensuring that all airflow is filtered by the dust filter screen 3, thus improving the filtration accuracy of the equipment. At the same time, the sealing strip 15 can also block impurities from entering the corner block guide groove 4, preventing impurities from accumulating on the mating surface between the guide slider 10 and the corner block guide groove 4, ensuring that the guide corner block 9 slides smoothly without jamming during subsequent adjustments.

[0034] Example 2: In this example, when the magnesium sand passes through the guide corner block 9 and the dust filter screen 3, the impurities and floating dust fall down along the flow direction guide groove 5 and will not accumulate at the edge of the dust filter screen 3, further reducing the difficulty of disassembling the dust filter screen 3.

[0035] Specifically, when the airflow containing impurities passes through the dust filter screen 3, most of the magnesium abrasive impurities are intercepted by the screen. A small amount of fine dust and impurity particles detach from the screen surface under gravity and fall downwards into the flow guide groove 5 on the lower wall of the dust removal equipment body 1. Combined with the guiding angle 8, this prevents impurities from directly accumulating at the connection between the frame of the dust filter screen 3 and the support groove 6. The height of the support groove 6 is higher than that of the support slider 17, facilitating the sliding of the support slider 17 within the support groove 6. Impurities guided by the flow guide groove 5 enter the air-avoidance groove 7 (the width of the air-avoidance groove 7 is greater than that of the flow guide groove 5, allowing most of the impurities to pass through). After falling, the impurities directly enter the impurity collection box 19. Some of the impurities that fall into the support groove 6 slide down along the guide angle 8 (to minimize the impurities remaining in the support groove 6 and facilitate the sliding of the support rod 16). Then, under the action of gravity, they fall naturally and enter the collection groove 18 below through the clearance groove 7. Finally, they fall into the impurity collection box 19, which is slidably installed in the collection groove 18, to achieve centralized collection of impurities. The auxiliary rounded corners 21 inside the impurity collection box 19 can prevent impurities from accumulating at the corners of the inner wall of the box, ensuring that the impurities can fall smoothly to the bottom of the box, and at the same time reducing dead corners for subsequent cleaning.

[0036] When it is necessary to replace the dust filter 3, first turn off the dust removal equipment and open the door 2 on the side wall of the dust removal equipment body 1. Since the impurities have been guided to the impurity collection box 19 through the flow guide groove 5 and the air-avoiding groove 7, there is no obvious accumulation of impurities at the root of the dust filter 3 and in the support groove 6. The operator only needs to hold the dust filter 3 with both hands. Then, pull the dust filter 3 outward along the extension direction of the support groove 6. The support slider 17 slides smoothly along the support groove 6 (without too much impurity jamming) until the support slider 17 is completely separated from the support groove 6. The dust filter 3 is removed as a whole. The entire disassembly process does not require cleaning up the accumulated impurities. The operation is convenient and efficient. Finally, take out the impurity collection box 19 for cleaning. The chamfer 20 can guide the impurity collection box 19 to be quickly and accurately inserted into the collection groove, avoiding assembly difficulties caused by alignment deviation.

[0037] Although 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 alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A magnesium abrasive dust removal device with easy-to-replace filter screen, comprising a dust removal device body (1), wherein a door (2) is rotatably connected to the side wall of the dust removal device body (1), and a dust removal filter screen (3) is slidably disposed on the inner wall surface of the dust removal device body (1), characterized in that, The upper and lower walls of the dust removal equipment body (1) are respectively provided with corner block guide grooves (4), and the lower wall of the dust removal equipment body (1) is provided with an impurity guide part. The impurity guide section consists of, from top to bottom, a flow guide groove (5) for guiding the flow of impurities at the root of the dust filter screen (3), a support groove (6) for guiding the disassembly and assembly of the dust filter screen (3), and an air-avoiding groove (7) to prevent impurities from accumulating in the support groove (6). The width of the air-avoiding groove (7) is greater than that of the flow guide groove (5), and the lower wall of the support groove (6) is provided with a guide inclination angle (8). An impurity guiding structure is slidably connected within one of the corner block guide grooves (4).

2. The magnesium abrasive dust removal device with easy filter replacement according to claim 1, characterized in that, The impurity guiding structure includes a guide corner block (9) and a guide slider (10). The guide slider (10) is fixedly installed on the lower wall of the guide corner block (9) and is slidably connected to the corner block guide groove (4). The connecting end of the guide slider (10) is provided with a sliding tilt angle (11).

3. A magnesium abrasive dust removal device with easily replaceable filter screen according to claim 2, characterized in that, A drive groove (12) is provided in the corner block guide groove (4). A cylinder (22) is fixedly installed in the drive groove (12). A sliding pressure block (13) is fixedly connected to the drive end of the cylinder (22). The sliding pressure block (13) is connected to the sliding tilt angle (11) at the connection end of the guide slider (10).

4. A magnesium abrasive dust removal device with easily replaceable filter screen according to claim 2, characterized in that, The lower wall of the guide corner block (9) is provided with two fixing grooves (14), and sealing strips (15) are fixedly installed in the two fixing grooves (14).

5. A magnesium abrasive dust removal device with easily replaceable filter screen according to claim 1, characterized in that, Two sets of support rods (16) are fixedly installed on both sides of the dust filter (3), and the two sets of support rods (16) are respectively connected to the support groove (6) through support sliders (17).

6. A magnesium abrasive dust removal device with easily replaceable filter screen according to claim 1, characterized in that, A storage slot (18) is provided below the clearance slot (7), and an impurity storage box (19) is slidably installed in the storage slot (18).

7. A magnesium abrasive dust removal device with easily replaceable filter screen according to claim 6, characterized in that, The assembly end of the impurity storage box (19) is provided with an assembly chamfer (20) to facilitate assembly, and the interior of the impurity storage box (19) is provided with an auxiliary rounded corner (21) to facilitate cleaning.

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