Dedusting linear screen equipment

Abstract

The utility model provides dust removal linear screen equipment which comprises a screen plate, and the screen plate extends in the conveying direction and is obliquely arranged downwards along the horizontal plane. The device further comprises a shell, the interior of the shell is divided into a first cavity and a second cavity which are arranged up and down through the sieve plate, the shell further forms a feeding port and a discharging port of the first cavity, the feeding port and the discharging port are oppositely arranged in the conveying direction, and the second cavity is provided with a slag outlet. The multiple brush rollers are rotationally arranged in the first cavity and are arranged in the conveying direction; the shell is provided with an air suction connecting hole communicated to the first cavity, and the air suction connecting hole is used for being in butt joint with a negative pressure generating device. The equipment can remove fine powder on the surfaces of particles.

Description

Technical Field

[0001] This utility model relates to the field of filtration and screening, and in particular to a dust removal linear screen device. Background Technology

[0002] Adsorbent particles are prone to entraining fine powder during the production process. This fine powder cannot be effectively separated from the normal particles. In subsequent use of the particles, the entrained fine powder will be carried out with the water flow, posing a risk of clogging equipment and pipelines. Therefore, it is necessary to treat the fine powder entrained on the particles.

[0003] A Chinese utility model patent with publication number CN208991188U discloses an automatic microbead sieving production system, including a sieve plate for conveying particles. The sieve plate is inclined and vibrates through a swing mechanism to drive the particles to move along the conveying direction and sieve them. A brush for cleaning the sieve is located at the end of the sieve plate. This technical solution, relying solely on vibration, is insufficient to separate fine powder adhering to the surface of the particles, resulting in poor dust removal. Utility Model Content

[0004] The purpose of this invention is to provide a dust removal linear screen device that can remove fine powder from the surface of particulate matter.

[0005] This utility model provides a dust removal linear screen device, including a screen plate that extends in the transmission direction and is inclined downward along the horizontal plane; it also includes a shell, the screen plate dividing the interior of the shell into a first chamber and a second chamber arranged vertically, the shell also forming an inlet and an outlet of the first chamber, the inlet and outlet being arranged opposite to each other in the transmission direction, and the second chamber having a slag outlet; it also includes brush rollers, multiple brush rollers being rotatably arranged in the first chamber and along the transmission direction; the shell is provided with a suction connection hole communicating with the first chamber, the suction connection hole being used to connect with a negative pressure generating device.

[0006] As can be seen from the above scheme, in this scheme, the powdery particles enter the first chamber through the feed inlet and are located above the screen plate. Driven by the rotation of multiple brush rollers arranged along the conveying direction, they move towards the discharge port. During the continuous rotation of the brush rollers, the particles are constantly lifted by the brush rollers and fully rubbed against them. The fine powder on the surface of the particles is brushed off and mixed into the air inside the shell. The air mixed with fine powder is sucked away by the negative pressure generating device through the suction connection hole, ensuring that dust does not leak out. Additionally, during the rotation of the brush rollers, some defective particles that do not meet the size requirements, as well as some fine powder, will fall through the mesh of the screen plate into the second chamber and finally be discharged through the slag outlet. The particles after removing the fine powder will be discharged from the discharge port.

[0007] A preferred embodiment is that the outer casing is provided with an air blowing connection hole that connects to the first chamber, and the air blowing connection hole is used to dock with the positive pressure generating device.

[0008] Therefore, in order to enhance the dust removal and suction effect, this solution uses a positive pressure generating device to blow air into the first chamber, which accelerates the fusion of dust and air and pushes the air carrying dust out from the suction connection hole.

[0009] A further embodiment includes an air blowing pipe, which extends from the outside of the housing into the first cavity through an air blowing connection hole, with several air blowing pipes and several brush rollers arranged alternately along the transmission direction.

[0010] It can be seen that the air blowing pipes arranged alternately with the brush rollers can fully mix the dust brushed off by the brush rollers with the air.

[0011] A further embodiment is that the outer shell includes two sidewalls located on the transverse sides of the first cavity, the two ends of the brush roller are rotatably connected to the two sidewalls respectively, the rotation axis of the brush roller is parallel to the surface of the sieve plate, and a number of air blowing pipes are distributed on the two sidewalls, with each air blowing pipe on the sidewall being set between two brush rollers.

[0012] As can be seen, the horizontal direction of this design is perpendicular to the transmission direction and the vertical direction, and the air blowing pipes are staggered with the brush rollers on both sides of the outer casing, resulting in a better air blowing effect.

[0013] A further proposed solution is to make the axis of rotation of the brush roller transverse.

[0014] Therefore, it can be seen that the horizontally arranged brush rollers have the best cleaning effect on particles transported along the conveying direction.

[0015] A further option is to place the air intake connection hole on the top wall of the outer casing.

[0016] This shows that the air carrying the powder is lighter and flows out from the top wall of the outer shell, resulting in better separation from the particles.

[0017] A further embodiment is that the end of the outer shell includes a first guide portion, the lateral width of which gradually narrows towards the discharge port along the transmission direction; the end of the outer shell also includes a second guide portion, the lateral width of which gradually narrows towards the slag discharge port along the transmission direction; in the vertical projection, the discharge port and the slag discharge port are staggered.

[0018] It can be seen that the gradually narrowing first guide section can guide the particulate matter to the discharge port, and the gradually narrowing second guide section can guide the waste residue to the slag discharge port.

[0019] A further option is to include a filter plate, which is set at the slag outlet, and the mesh size of the filter plate is smaller than that of the sieve plate.

[0020] Therefore, it can be seen that the filter plate can not only separate particulate waste and dust, but if intact particles are found on the filter plate, it indicates that the filter plate is damaged and needs to be repaired.

[0021] A further option includes a vibration drive device and a support structure. The drive end of the vibration drive device is connected to the outer shell, and the support structure includes a base and a spring. The base supports the outer shell through the spring.

[0022] Therefore, this equipment can also vibrate, which is beneficial for the sieve plate and filter plate to filter and can drive the particles to move towards the discharge port in the first chamber. Attached Figure Description

[0023] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0024] Figure 1 This is a structural diagram of an embodiment of the present utility model.

[0025] Figure 2 This is a side view of an embodiment of the present utility model.

[0026] Figure 3 This is a top view of an embodiment of the present utility model.

[0027] Figure 4 This is a top view of another embodiment of the present invention. Detailed Implementation

[0028] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0029] Reference Figures 1 to 3 As shown, to fully demonstrate the dust removal linear screen equipment in this embodiment, Figures 1 to 3 The outer casing has been made transparent. This embodiment provides a dust removal linear screen device, including an outer casing 1 and a screen plate 2. The screen plate 2 is disposed inside the outer casing 1. The outer casing 1 and the screen plate 2 extend in the conveying direction and are inclined downwards along the horizontal plane. The screen plate 2 divides the interior of the outer casing 1 into a first cavity 3 and a second cavity 4 arranged vertically. That is, when the outer casing 1 is not inclined and is placed horizontally, the first cavity 3 is located above the second cavity 4. Figure 1 and Figure 2As shown, the outer shell 1 has an inlet 31 and an outlet 32 ​​formed upstream and downstream of the first cavity 3 along the particle conveying direction, respectively, and the outer shell 1 has a slag outlet 41 provided downstream of the second cavity 4 along the conveying direction.

[0030] Within the first cavity 3, multiple brush rollers 33 are arranged along the conveying direction. The axial direction of the rotation axis of the brush rollers 33 is the transverse direction of the outer casing 1. It should be noted that the transverse direction is perpendicular to both the conveying direction and the vertical direction. The outer casing 1 includes two side walls 11 located on both sides of the first cavity 3 in the transverse direction. The ends 331 of the brush rollers 33 in the axial direction are rotatably connected to the two side walls 11. The axial directions of the multiple brush rollers 33 are parallel to each other and parallel to the surface of the sieve plate 2. In order to lift the particles from the sieve plate 2, the bristles of the brush rollers 33 in this embodiment are in contact with the sieve plate 2. When the ends 331 of the brush rollers 33 are rotatably connected to the side walls 11 of the outer casing 1, they will extend out of the outer casing 1. All the brush rollers 33 can be rotated by a drive motor and a connecting rod or gear mechanism.

[0031] In other embodiments, such as Figure 4 As shown, the axial directions of the rotation axis of the brush roller 7 can also be staggered, and the brush rollers 7 in different axial directions are conducive to brushing away the powder on the surface of the particles from multiple angles.

[0032] In this embodiment, such as Figure 2 As shown, eight suction connection holes are evenly arranged on the top wall of the outer casing 1. Each of the eight suction connection holes is connected to an upward-extending dust suction pipe 12, which is connected to a negative pressure generating device. When the brush roller 33 separates the powder from the surface of the particles, the powder will mix with air. The negative pressure generating device can suck away the air mixed with powder from the first chamber 3 through the eight dust suction pipes 12. In addition, the dust removal linear screen equipment in this embodiment also includes an air blowing pipe 5. The outer casing 1 has multiple air blowing connection holes on its two side walls 11, such as... Figures 1 to 3 As shown, the air blowing connection holes on each side wall 11 and the ends 331 of the brush roller 33 on the side wall 11 are staggered. The air blowing pipe 5 includes two main pipes 51 and multiple branch pipes 52. The main pipes 51 are connected to the positive pressure generating device. Each main pipe 51 is connected to the air blowing connection hole on a side wall 11 through multiple branch pipes 52. The branch pipes 52 extend from the outside of the outer shell 1 to the inside of the first cavity 3 through the air blowing connection hole. The positive pressure generating device blows high-pressure airflow into the first cavity 3 through the main pipes 51 and the branch pipes 52. The airflow entering from the air blowing connection hole located on the side wall 11 of the outer shell 1 is mixed with powder and is sucked out from the suction connection hole located on the top wall of the outer shell 1, forming an airflow channel to ensure that the powder brushed off inside the equipment is promptly discharged to the outside of the outer shell 1.

[0033] like Figures 1 to 3As shown, in this embodiment, the downstream end of the outer casing 1 in the transmission direction includes a first guide portion 13 and a second guide portion 14. The width of the first guide portion 13 in the lateral direction gradually narrows to the discharge port 32 along the transmission direction, and the width of the second guide portion 14 in the lateral direction gradually narrows to the slag discharge port 41 along the transmission direction. Particles after powder removal enter the first guide portion 13 and collect at the discharge port 32 before falling out. Some powder passes through the sieve plate 2 and falls into the second chamber 4, then enters the second guide portion 14 and collects at the slag discharge port 41. A filter plate 42 is provided at the slag discharge port 41. Powder can pass through the filter plate 42 and fall out. Some damaged particles pass through the sieve plate 2 and fall into the second chamber 4, also collecting at the slag discharge port 41. Because the mesh size of the filter plate 42 is smaller than that of the sieve plate 2, damaged particles will fall onto the filter plate 42. During equipment operation, if complete particles are found on the filter plate 42, it indicates that the sieve plate 2 is damaged and requires shutdown for maintenance.

[0034] In this embodiment, the top of the outer casing 1 is a cover plate 15. When the cover plate 15 is removed, the brush roller 33 and the branch pipe 52 inside the first cavity 3 can be exposed, which facilitates the assembly and maintenance of the brush roller 33 and the cleaning of the branch pipe 52.

[0035] The dust removal linear screen equipment in this embodiment also includes a vibration drive device and a support structure 6. The support structure 6 includes a base 61 and a spring 62. The base 61 supports the outer shell 1 through the spring 62. There are four support structures 6 in total. The two bases 61 near the upstream of the conveying direction are longer, and the two bases 61 near the downstream of the conveying direction are shorter, so that the outer shell 1 can be set at an angle. The drive end of the vibration drive device is connected to the outer shell 1 and can drive the outer shell 1 to vibrate within a certain range. With the cooperation of the vibration of the outer shell 1, the rotation of the brush roller 33, and the angled setting of the outer shell 1, the particles will enter from the feed port 31 of the outer shell 1 along the conveying direction and move along the conveying direction.

[0036] The above embodiments illustrate only one implementation of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A dust-removing straight-line screen device comprising a screen plate, the screen plate being arranged downwardly inclined along a horizontal plane in a conveying direction; characterized in that: the screen plate separates an inner part of a housing into a first cavity and a second cavity arranged in an up-down direction, the housing further forms a feeding port and a discharging port of the first cavity, the feeding port and the discharging port being oppositely arranged in the conveying direction, and the second cavity is provided with a slag discharging port; a plurality of brush rollers are rotatably arranged in the first cavity and arranged in the conveying direction; the housing is provided with a suction connection hole communicating with the first cavity, the suction connection hole being used for interfacing with a negative pressure generating device.

2. The dewatering linear screen apparatus of claim 1, wherein, the housing is provided with a blowing connection hole communicating with the first cavity, the blowing connection hole being used for interfacing with a positive pressure generating device.

3. The dewatering linear screen apparatus of claim 2, wherein, a plurality of blowing pipes are arranged in the first cavity from outside of the housing through the blowing connection hole, and the blowing pipes and the brush rollers are staggered arranged in the conveying direction.

4. The dewatering linear screen apparatus of claim 3, wherein, the housing comprises two side walls respectively located at two lateral sides of the first cavity, axial ends of the brush rollers are respectively rotatably connected to the two side walls, a rotation axis of the brush rollers is parallel to a surface of the screen plate, and the blowing pipes are distributed on the two side walls, the blowing pipes on each side wall are arranged between two brush rollers.

5. The dewatering linear screen apparatus of claim 4, wherein, an axial direction of a rotation center of the brush rollers is the lateral direction.

6. The dewatering linear screen apparatus of claim 4, wherein, the suction connection hole is arranged on a top wall of the housing.

7. The dust extraction linear screen apparatus of any one of claims 1 to 6, wherein, an end part of the housing comprises a first guide part, a lateral width of the first guide part gradually narrows to the discharging port along the conveying direction; the end part of the housing further comprises a second guide part, a lateral width of the second guide part gradually narrows to the slag discharging port along the conveying direction; the discharging port and the slag discharging port are staggered arranged in a vertical projection.

8. The dewatering linear screen apparatus of claim 7, wherein, a filter plate is arranged at the slag discharging port, and a mesh size of the filter plate is smaller than a mesh size of the screen plate.

9. The dust extraction linear screen apparatus of any one of claims 1 to 6, wherein, a vibration driving device and a support structure are further included, a driving end of the vibration driving device is connected to the housing, and the support structure comprises a base and a spring, the base supports the housing through the spring.

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