Flame-retardant material grader additionally provided with dust cover

Abstract

The utility model provides a flame-retardant material grader additionally provided with a dust cover, and belongs to the technical field of dust prevention of graders. Comprising a grader body and further comprises a dustproof assembly, the dustproof assembly is arranged on one side of the grader body and comprises a dustproof cover body arranged on one side of the grader body, the bottom of the dustproof cover body communicates with a material receiving barrel, and a baffle is connected to the side, close to the material receiving barrel, of the interior of the dustproof cover body; the baffle is shorter than the receiving barrel; the filtering assembly is arranged in the dustproof assembly and used for filtering materials or dust remaining in the air flow; by arranging the dustproof assembly, as the baffle is shorter than the material receiving barrel, and an exhaust passage is formed between the baffle and the material receiving barrel, when airflow with materials enters the dustproof cover body, the airflow flows into the material receiving barrel along the baffle and then is discharged by bypassing the baffle, the high-speed airflow is prevented from directly impacting the bottom of the material receiving barrel, and dust is prevented from being raised again by the airflow; and the collection stability is improved, and dust dissipation is reduced.

Description

Technical Field

[0001] This utility model relates to the field of dust prevention technology for grading machines, and in particular to a flame-retardant material grading machine equipped with a dust cover. Background Technology

[0002] A flame-retardant material classifier with a dust cover is a device that adds a dust cover to a regular flame-retardant material classifier. It is mainly used to classify materials with flame-retardant properties by particle size, while effectively controlling dust through the dust cover.

[0003] Existing flame retardant material classifiers install a dust cover at the discharge port and connect it to the receiving hopper. When the classified flame retardant material falls from the discharge port into the receiving hopper, the dust cover prevents dust from splashing upwards due to the impact of the material, thus reducing the dispersion of material and dust.

[0004] However, in practical applications, the discharge port and receiving hopper of existing flame retardant material classifiers are usually directly connected by a dust cover. This means that the airflow blown out during discharge may directly rush into the interior of the receiving hopper laterally. Since the airflow is not blocked, the high-speed airflow directly impacts the bottom of the receiving hopper, causing the settled dust to be easily stirred up again by the airflow. This is not conducive to improving the collection stability of the material and also easily causes the material and dust to escape.

[0005] Therefore, this application provides a flame-retardant material grading machine equipped with a dust cover to meet the requirements. Utility Model Content

[0006] The purpose of this invention is to address the shortcomings of existing technologies by proposing a flame-retardant material grading machine with a dust cover.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a flame-retardant material grading machine equipped with a dust cover, comprising a grading machine body, and further comprising:

[0008] A dustproof component is placed on one side of the classifier body. The dustproof component includes a dust cover body disposed on one side of the classifier body. The bottom of the dust cover body is connected to a receiving hopper. A baffle is connected to the inside of the dust cover body near the receiving hopper. The length of the baffle is less than the length of the receiving hopper.

[0009] A filter assembly, which is placed inside a dustproof assembly and is used to filter residual material or dust in the airflow, includes a support plate disposed on one side of the dustproof cover body, and a filter screen is disposed inside the support plate.

[0010] Furthermore, a feed pipe is connected to one side of the dust cover body, and the feed pipe is oriented perpendicular to the baffle.

[0011] The beneficial effects of adopting the above-mentioned further scheme are: after the horizontal airflow enters the receiving hopper, it is forced to flow downward due to the obstruction of the baffle. At the same time, the flow velocity of the airflow is reduced due to the expansion of the space, making it easier for the powder to settle.

[0012] Furthermore, a sealing plate is snapped onto the side of the dust cover body near the support plate, and the support plate and the sealing plate are slidably connected.

[0013] The beneficial effect of adopting the above-mentioned further solution is that installing a rubber gasket on the sealing plate and filling the space between the sealing plate and the dust cover body with the rubber gasket helps to further improve the sealing effect.

[0014] Furthermore, sliders are connected to both sides of the support plate, and the support plate is slidably connected to the dust cover body through the sliders.

[0015] The beneficial effect of adopting the above-mentioned further solution is that the filter can be switched directly during the operation of the classifier body, preventing accidental damage to the filter from causing the classifier body to stop.

[0016] Furthermore, the slider is provided with an anti-slip coating.

[0017] The beneficial effects of adopting the above-mentioned further solution are: preventing the support plate from slipping during the movement of the support plate, and facilitating the subsequent use of screws to fix the support plate to the dust cover body.

[0018] Furthermore, the support plate has an internal mounting frame with bolts connected to it, and the filter screen is connected to the support plate by the bolts.

[0019] The advantages of adopting the above-mentioned further solutions are: it facilitates the installation and removal of the frame on the support plate, which helps to improve replacement efficiency.

[0020] Furthermore, a snap-fit ​​ring is connected to one side of the mounting frame, and two mounting frames that are close to each other are snapped together by the snap-fit ​​ring.

[0021] The beneficial effects of adopting the above-mentioned further solution are: the two mounting frames fix the filter screen in the middle, which facilitates the connection and separation of the mounting frames and makes it easier to quickly replace the filter screen.

[0022] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0023] 1. By setting up dustproof components, since the length of the baffle is less than that of the receiving hopper, an exhaust passage is formed between the two. When the airflow carrying material enters the dustproof cover body, because the dustproof cover body is closed on all sides, the airflow will flow along the baffle into the receiving hopper and then bypass the baffle to be discharged. This structure can reduce the disturbance to the powder accumulated at the bottom of the hopper, avoid the high-speed airflow directly impacting the bottom of the receiving hopper, prevent the settled dust from being re-raised by the airflow, improve the collection stability, and reduce dust dispersion.

[0024] 2. By setting up a filter assembly, a support plate is installed on one side of the dust cover body, and a filter screen is installed inside the support plate. When the airflow passes through the filter screen, the filter screen can filter the material powder that has not been completely recovered, effectively preventing the escaped material powder from flowing back to the grading chamber through the exhaust system, thus avoiding affecting the grading efficiency. Attached Figure Description

[0025] Figure 1 This is a front view of a flame-retardant material grading machine with a dust cover according to this utility model;

[0026] Figure 2 This is a structural diagram of the dustproof component in a flame-retardant material grading machine equipped with a dustproof cover, according to this utility model.

[0027] Figure 3 This is a side sectional view of the dust cover body in a flame-retardant material grading machine equipped with a dust cover according to the present invention;

[0028] Figure 4 This is an exploded view of the filter assembly in a flame-retardant material grading machine with a dust cover according to this utility model;

[0029] Figure 5 This is an exploded view of the mounting frame in a flame-retardant material grading machine with a dust cover according to this utility model.

[0030] Attached Figure

[0031] 1. Grading machine body;

[0032] 2. Dustproof components; 21. Dustproof cover body; 22. Receiving hopper; 23. Baffle; 24. Feed pipe; 25. Sealing plate;

[0033] 3. Filter assembly; 31. Support plate; 32. Mounting frame; 33. Filter screen; 34. Slider; 35. Anti-slip coating; 36. Snap-fit ​​ring; 37. Bolt. Detailed Implementation

[0034] 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.

[0035] like Figures 1-5 As shown, this utility model provides a technical solution: a flame-retardant material classifier with a dust cover, including a classifier body 1. The classifier body 1 consists of a feeding system, a classification chamber, and a drive system. The feeding system is used to store and uniformly convey flame-retardant materials, and is usually equipped with a gate or screw feeder to control the feeding amount. Material classification is achieved through airflow, separating materials of different particle sizes. The drive system provides power to the classification wheel, feeding device, etc., and simultaneously adjusts the rotation speed to control the classification accuracy. It also includes:

[0036] like Figures 1-2 As shown, the dustproof component 2 is placed on one side of the classifier body 1. The dustproof component 2 includes a dustproof cover body 21 disposed on one side of the classifier body 1. The bottom of the dustproof cover body 21 is connected to a receiving hopper 22. A baffle 23 is connected to the inside of the dustproof cover body 21 near the receiving hopper 22. The length of the baffle 23 is less than the length of the receiving hopper 22.

[0037] like Figures 1-4 As shown, the filter assembly 3 is placed inside the dustproof assembly 2 and is used to filter residual material or dust in the airflow. The filter assembly 3 includes a support plate 31 disposed on one side of the dustproof cover body 21. A filter screen 33 is disposed inside the support plate 31. By welding the baffle 23 to the inside of the dustproof cover body 21 and threading the receiving bucket 22 to the inside of the dustproof cover body 21, the baffle 23 is inserted into the inside of the receiving bucket 22. Since the length of the baffle 23 is less than the length of the receiving bucket 22, an exhaust passage is left between the baffle 23 and the receiving bucket 22, allowing the airflow carrying material to be sent into the inside of the dustproof cover body 21. The interior of 21 is enclosed on all four sides, allowing airflow to flow along baffle 23 into the interior of the receiving hopper 22 and then bypass baffle 23 to discharge. This reduces disturbance to the powder accumulated at the bottom of the hopper and solves the problem of high-speed airflow directly impacting the bottom of the receiving hopper 22, which causes settled dust to be easily stirred up by the airflow. This helps improve collection stability and reduces dust dispersion. Furthermore, by installing support plate 31 on one side of the dust cover body 21 and installing filter screen 33 inside support plate 31, when airflow passes through filter screen 33, filter screen 33 filters the powder that has not been fully recovered, preventing the dispersed powder from flowing back into the grading chamber through the exhaust system and affecting grading efficiency.

[0038] Furthermore, such as Figure 2As shown, a feed pipe 24 is connected to one side of the dust cover body 21. The feed pipe 24 is perpendicular to the baffle 23. By welding the feed pipe 24 to the dust cover body 21, the feed pipe 24 is connected to the discharge port on the classifier body 1 using a flange and sealed with a sealing ring to prevent airflow from leaking from the connection. Since the feed pipe 24 is perpendicular to the baffle 23, after the transverse airflow enters the receiving hopper 22, it is forced to flow downward by the baffle 23. At the same time, the flow velocity of the airflow is reduced due to the expansion of the space, making it easier for the powder to settle.

[0039] Furthermore, such as Figure 3 As shown, a sealing plate 25 is snapped onto the side of the dust cover body 21 near the support plate 31. The support plate 31 and the sealing plate 25 are slidably connected. By installing a rubber pad on the sealing plate 25, the rubber pad fills the space between the sealing plate 25 and the dust cover body 21, which helps to further improve the sealing effect.

[0040] Furthermore, such as Figure 4 As shown, sliders 34 are connected to both sides of the support plate 31. The support plate 31 is slidably connected to the dust cover body 21 through the sliders 34. By welding the sliders 34 onto the support plate 31 and opening a groove on the dust cover body 21 that matches the sliders 34, the support plate 31 can slide along the groove on the dust cover body 21 through the sliders 34. This allows the filter screen 33 to be switched directly during the operation of the classifier body 1, preventing accidental damage to the filter screen 33 from causing the classifier body 1 to stop.

[0041] Furthermore, such as Figure 4 As shown, the slider 34 is provided with an anti-slip coating 35. By spraying the anti-slip coating 35 onto the slider 34, the anti-slip coating 35 increases the friction between the slider 34 and the dust cover body 21, preventing the support plate 31 from slipping during the movement of the support plate 31, and making it easier to fix the support plate 31 to the dust cover body 21 with screws later.

[0042] Furthermore, such as Figure 5 As shown, the support plate 31 has an internal mounting frame 32, and bolts 37 are connected to the mounting frame 32. The filter screen 33 is connected to the support plate 31 by bolts 37. The mounting frame 32 is fixed to the support plate 31 by bolts 37, which facilitates the installation and removal of the mounting frame 32 on the support plate 31 and helps to improve the replacement efficiency.

[0043] Furthermore, such as Figure 5As shown, a snap-fit ​​ring 36 is connected to one side of the mounting frame 32. Two mounting frames 32 that are close to each other are snapped together by the snap-fit ​​ring 36. By opening a snap-fit ​​groove on the other side of the mounting frame 32 that matches the snap-fit ​​ring 36, the two mounting frames 32 are merged together, so that the snap-fit ​​ring 36 is snapped into the inside of the snap-fit ​​groove, and the two mounting frames 32 fix the filter screen 33 in the middle. This fixing method facilitates the connection and separation of the mounting frames 32 and is conducive to the quick replacement of the filter screen 33.

[0044] Working principle: such as Figures 1-5 As shown, the material is fed into the interior of the classifier body 1. The classifier body 1 is started, and the drive unit rotates the impeller, generating centrifugal force and airflow. Particles of different sizes separate due to the difference in force, causing coarse powder to be discharged from the bottom outlet and fine powder to be discharged from the air outlet following the airflow. The discharged airflow travels along the feed pipe 24 and enters the interior of the dust cover body 21. Since the feed pipe 24 is perpendicular to the baffle 23, the transverse airflow enters the receiving hopper 22 and is forced downwards by the baffle 23 before bypassing the baffle 23 and being discharged, thus reducing disturbance to the powder accumulated at the bottom of the hopper. Afterwards, the airflow passes through the support plate 31 and is discharged. When the airflow passes through the filter screen 33, the filter screen 3... 3. Filter the powder that is not fully recovered to prevent the escaped powder from flowing back to the grading chamber through the exhaust system. After the filter screen 33 has been used for a long time, a large amount of powder will accumulate. At this time, place the new filter screen 33 between the mounting frames 32, merge the two mounting frames 32, and make the snap ring 36 snap into the inside of the snap groove to fix the filter screen 33. Then, use the bolt 37 to install the mounting frame 32 at the bottom of the support plate 31, push the support plate 31, and the support plate 31 will slide along the slide groove on the dust cover body 21 through the slider 34 to send the new filter screen 33 into the inside of the dust cover body 21. Then, take out the top mounting frame 32 for replacement.

[0045] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A flame-retardant material grading machine equipped with a dust cover, comprising a grading machine body (1), characterized in that, Also includes: Dustproof component (2), the dustproof component (2) is placed on one side of the classifier body (1), the dustproof component (2) includes a dustproof cover body (21) disposed on one side of the classifier body (1), the bottom of the dustproof cover body (21) is connected to a receiving bucket (22), and a baffle (23) is connected to the inside of the dustproof cover body (21) near the receiving bucket (22), the length of the baffle (23) is less than the length of the receiving bucket (22); The filter assembly (3) is placed inside the dustproof assembly (2) and is used to filter residual materials or dust in the airflow. The filter assembly (3) includes a support plate (31) disposed on one side of the dustproof cover body (21), and a filter screen (33) is disposed inside the support plate (31).

2. A flame-retardant material grading machine equipped with a dust cover according to claim 1, characterized in that, The dust cover body (21) is connected to a feed pipe (24) on one side, and the feed pipe (24) is perpendicular to the baffle (23).

3. A flame-retardant material grading machine equipped with a dust cover according to claim 1, characterized in that, A sealing plate (25) is snapped onto the side of the dust cover body (21) near the support plate (31), and the support plate (31) and the sealing plate (25) are slidably connected.

4. A flame-retardant material grading machine equipped with a dust cover according to claim 1, characterized in that, Both sides of the support plate (31) are connected to sliders (34), and the support plate (31) is slidably connected to the dust cover body (21) through the sliders (34).

5. A flame-retardant material grading machine equipped with a dust cover according to claim 4, characterized in that, The slider (34) is provided with an anti-slip coating (35).

6. A flame-retardant material grading machine equipped with a dust cover according to claim 1, characterized in that, The support plate (31) has an internal mounting frame (32) with bolts (37) connected to it. The filter screen (33) is connected to the support plate (31) by bolts (37).

7. A flame-retardant material grading machine equipped with a dust cover according to claim 6, characterized in that, A snap-fit ​​ring (36) is connected to one side of the mounting frame (32), and the two mounting frames (32) that are close to each other are snapped together by the snap-fit ​​ring (36).

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