A powder cleaning device for an engineering plastic powder remover

Abstract

This application relates to a powder cleaning device for an engineering plastic powder separator, specifically in the field of powder separators for engineering plastics. It includes a powder separator chamber and several filter bags disposed within the chamber. The top and bottom of the chamber have air outlets and powder outlets, respectively, and an air inlet is located on the side wall. The chamber also includes several circumferentially arranged conical plates, which together form the bottom of the chamber. Each conical plate includes an outer plate and a heat-conducting plate attached to the inner side of the outer plate. A receiving cavity is formed between the heat-conducting plate and the outer plate, and a heating element for heating the heat-conducting plate is installed within the cavity. Each conical plate has a collection groove on its bottom side for collecting powder particles, which together form a collection ring groove. The collection ring groove has a discharge port communicating with the outside. This application can heat the engineering plastic powder particles that have settled and adhered to the bottom wall of the powder separator chamber, causing them to liquefy and slide into the collection ring groove under the effect of hot air, thus achieving the effect of cleaning the powder from the inner wall of the powder separator chamber.

Description

Technical Field

[0001] This application relates to the field of dust collector technology for engineering plastics, and in particular to a powder cleaning device for an engineering plastic dust collector. Background Technology

[0002] A dust collector is an industrial environmental protection device used to separate and capture dust particles from exhaust gas or air to meet emission standards, recover valuable materials, or improve the working environment. It is widely used in processes requiring surface cleaning, recovery of valuable powders, or improvement of the working environment. Its core purpose is to achieve gas-solid separation, that is, to separate solid particles carried by airflow from the air. In summary, dust collectors are key equipment in modern industrial production for improving product quality, achieving automation, and maintaining environmental cleanliness, and have become indispensable purification equipment for various manufacturing enterprises.

[0003] Most existing dust collectors separate gas and dust particles in the dust collection chamber through natural sedimentation. However, when dealing with industrial plastic dust, the particles become sticky after heating. Therefore, some of the hotter plastic particles adhere to the bottom inner side of the dust collection chamber during sedimentation, making them difficult to clean. Furthermore, because plastic particles are small, using conventional sweeping devices will inevitably create dust. Therefore, there is still significant room for improvement in the collection of easily adhered particles in dust collectors. Utility Model Content

[0004] In order to clean easily adhering substances such as plastic powder from the inner wall of the dust collector, while ensuring that a large amount of dust is not generated during cleaning, this application provides a powder cleaning device for an engineering plastic dust collector.

[0005] The powder cleaning device for an engineering plastic powder separator provided in this application adopts the following technical solution: A powder cleaning device for engineering plastics includes a powder removal chamber and several filter bags disposed inside the powder removal chamber. The powder removal chamber has an air outlet at its top and a powder outlet at its bottom, and an air inlet on its side wall. The powder removal chamber also includes several circumferentially arranged conical plates, which together form the bottom of the powder removal chamber. Each conical plate includes an outer plate and a heat-conducting plate attached to the inner side of the outer plate. A receiving cavity is formed between the heat-conducting plate and the outer plate. A heating element for heating the heat-conducting plate is installed in the receiving cavity. Each of the bottom sides of the conical plates has a collection groove for collecting powder particles, which together form a collection ring groove. The collection ring groove has a discharge port communicating with the outside.

[0006] Optionally, the heat-conducting plate is provided with several strip-shaped guide grooves at equal intervals to facilitate the powder particles to slide into the collection ring groove after heating, and the several strip-shaped guide grooves are respectively located on the same vertical plane as the axis of the powder removal chamber.

[0007] Optionally, each of the conical plates is provided with a blower pipe at one end near the top of the dust removal chamber. The blower pipe is connected to a blower and is filled with hot air. The blower pipe is provided with a number of air holes spaced apart. The positions of the air holes are directly opposite the strip-shaped guide channels, and the positions of the air holes correspond one-to-one with the positions of the strip-shaped guide channels.

[0008] Optionally, the heat-conducting plate has a plurality of oblique guiding grooves between two adjacent strip guiding grooves. The lower end of the oblique guiding grooves along the extension direction of the heat-conducting plate is connected to the strip guiding grooves, and the depth of the oblique guiding grooves is less than that of the strip guiding grooves.

[0009] Optionally, the ends of several of the strip-shaped guide channels near the collection ring groove are all arc-shaped structures, and the outlets of the strip-shaped guide channels are tangent to the collection ring groove, with the outlets of several of the strip-shaped guide channels all facing the discharge port.

[0010] Optionally, the discharge port is positioned lower than other positions on the collecting ring groove along the axis of the dust removal chamber.

[0011] Optionally, the air inlet is located above the conical plate along the axis of the dust removal chamber, and an air inlet pipe filled with dust-containing gas passes through the air inlet, with the outlet end of the air inlet pipe coaxial with the dust removal chamber.

[0012] In summary, this application includes at least one of the following beneficial technical effects: This application can heat and liquefy the engineering plastic powder particles that settle and adhere to the bottom side wall of the powder removal chamber, so that the inside of the powder removal chamber is always kept clean, saving the cost and manpower of cleaning the powder removal chamber. This application improves the efficiency of the dust removal chamber in cleaning settled powder by designing a strip-shaped guide channel and a blower pipe to more quickly deliver the engineering plastics adhering to the inner wall of the bottom of the dust removal chamber into the collection ring channel. Attached Figure Description

[0013] Figure 1 This is an overall schematic diagram of a powder cleaning device for an engineering plastic powder remover according to this application.

[0014] Figure 2 This is an overall half-sectional view of an engineering plastic powder removal and cleaning device according to this application.

[0015] Explanation of reference numerals in the attached drawings: 1. Dust removal hopper; 11. Air outlet; 12. Dust outlet; 13. Air inlet; 2. Filter bag; 3. Air inlet pipe; 4. Conical plate; 41. Outer plate; 42. Heat-conducting plate; 421. Strip-shaped guide groove; 422. Inclined guide groove; 43. Cavity; 431. Heating element; 5. Collection ring groove; 51. Collection groove; 52. Discharge port; 6. Blower pipe. Detailed Implementation

[0016] The following is in conjunction with the appendix Figure 1-2 This application will be described in further detail.

[0017] This application discloses a powder cleaning device for an engineering plastic powder remover.

[0018] Reference Figure 1 A powder cleaning device for engineering plastics includes a powder removal chamber 1 and several filter bags 2 disposed inside the powder removal chamber 1. The powder removal chamber 1 has an air outlet 11 at its top and a powder outlet 12 at its bottom, and an air inlet 13 for an air inlet pipe 3 to pass through its side wall. When the powder remover is working, powder-laden gas enters the powder removal chamber 1 through the air inlet pipe 3 at the air inlet 13, then moves upwards, passes through the filter bags 2, and is discharged through the air outlet 11. During this process, some of the engineering plastic powder particles in the powder-laden gas settle and adhere to the bottom inner side wall of the powder removal chamber 1 due to their own mass and temperature characteristics, while the other part adheres to the filter bags 2.

[0019] Reference Figure 1 and Figure 2 Furthermore, the powder removal chamber 1 also includes several conical plates 4 arranged circumferentially at the bottom of the powder removal chamber 1, and the conical plates 4 together form the bottom structure of the powder removal chamber 1. Specifically, each conical plate 4 includes an outer plate 41 and a heat-conducting plate 42 attached to the inner side of the outer plate 41, and the heat-conducting plate 42 and the outer plate 41 together form a cavity 43. A heating element 431 is disposed within the cavity 43, which can heat the heat-conducting plate 42 to a temperature capable of melting the engineering plastic powder into a liquid state.

[0020] Preferably, in this application, the air inlet pipe 3 is located above several conical plates 4 and its outlet end is coaxial with the dust removal chamber 1, so that the dust particles in the dust-containing gas discharged from the air inlet pipe 3 can be evenly distributed on several conical plates 4, avoiding the problem of dust particles accumulating in one place and causing low dust removal efficiency.

[0021] The bottom side of the conical plate 4 is connected to an inwardly curved collection trough 51, where the engineering plastic powder that has turned into liquid and slid down is collected. The collection troughs 51 of multiple conical plates 4 are connected end to end to form a collection ring trough 5. The bottom side of the collection ring trough 5 is provided with a discharge port 52 that communicates with the outside so that the powder can be discharged smoothly.

[0022] It is worth mentioning that the bottom of the collection troughs 51 on each conical plate 4 in this application is inclined, and the inclination increases sequentially. Furthermore, the position of the discharge port 52 along the axis of the powder removal chamber 1 is lower than other positions on the collection ring trough 5, so that the powder particles that have become liquid can slide out from the discharge port 52 on their own, simplifying the operation steps.

[0023] Of course, to avoid powder scattering, the two adjacent collection tanks 51 are seamlessly fitted or integrally connected.

[0024] Reference Figure 1 and Figure 2 A plurality of strip-shaped guide grooves 421 are evenly spaced along the width direction on the heat-conducting plate 42. The strip-shaped guide grooves 421 are connected to both the upper and lower ends of the heat-conducting plate 42, which can help the powder particles that settle on the heat-conducting plate 42 to slide down in an orderly manner and avoid disorder. The strip-shaped guide grooves 421 are respectively located on the same vertical plane as the axis of the powder removal chamber 1, so as to ensure that the powder particles can reach the collection ring groove 5 as quickly as possible, increase the sliding speed, and also reduce the difficulty of cleaning the conical plate 4 later.

[0025] Reference Figure 1 and Figure 2 Furthermore, each of the conical plates 4 is equipped with a blower pipe 6 near the top of the dust removal chamber 1. The blower pipe 6 is connected to a blower, allowing a continuous supply of hot air. Multiple air holes are provided on the blower pipe 6, directly opposite the positions of the strip-shaped guide channels 421, with each air hole corresponding to one of the strip-shaped guide channels 421. When the dust remover is operating, hot air is blown into the strip-shaped guide channels 421 through the air holes and moves along the channels, accelerating the liquid dust particles in the channels 421 into the collection tank 51.

[0026] It should be noted that the hot air here is relatively weak and can only accelerate the separation of liquids, but cannot blow up powder particles.

[0027] Reference Figure 1 and Figure 2 Furthermore, a plurality of oblique guiding channels 422 are formed on the heat-conducting plate 42 between two adjacent strip-shaped guiding channels 421, distributed along the extending direction of the heat-conducting plate 42. The lower end of the oblique guiding channel 422 along the extending direction of the heat-conducting plate 42 is connected to the strip-shaped guiding channel 421, and the depth of the oblique guiding channel 422 is less than that of the strip-shaped guiding channel 421. The oblique guiding channel 422 can help the liquefied powder particles to smoothly enter the strip-shaped guiding channel 421, thereby achieving convergence and concentrated sliding, avoiding the random sliding of liquid powder particles which would lead to slow progress in powder particle collection.

[0028] Reference Figure 1 and Figure 2Furthermore, the ends of several strip-shaped guide channels 421 near the collecting ring channel 5 are arc-shaped, and the outlets of the strip-shaped guide channels 421 are tangent to the collecting ring channel 5. The outlets of the strip-shaped guide channels 421 all face the discharge port 52, so that the liquid powder particles flowing out of the strip-shaped guide channels 421 can be discharged from the discharge port 52 more quickly under horizontal acceleration.

[0029] The implementation principle of the powder cleaning device for an engineering plastic powder separator in this application is as follows: By designing the heat-conducting plate 42 on the conical plate 4, the powder particles that settle and adhere to the bottom side wall of the powder removal chamber 1 during the operation of the powder remover can be quickly melted into liquid. Then, under the influence of the strip-shaped guide channel 421 and the inclined guide channel 422, the liquid powder particles will slide orderly into the collection ring channel 5, and then be smoothly discharged from the discharge port 52.

[0030] The hot air blown out from the blower 6 helps the liquid powder particles move faster in the strip guide channel 421 and provides horizontal acceleration for the liquid powder particles to enter the collection ring channel 5, thereby improving the overall self-cleaning efficiency of the powder remover.

[0031] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A powder cleaning device for an engineering plastic powder separator, comprising a powder separator (1) and a plurality of filter bags (2) disposed inside the powder separator (1), wherein the powder separator (1) has an air outlet (11) at its top and a powder outlet (12) at its bottom, and an air inlet (13) is also provided on the side wall of the powder separator (1), characterized in that: The dust removal chamber (1) also includes several conical plates (4) arranged circumferentially, and the several conical plates (4) together form the bottom of the dust removal chamber (1). The conical plate (4) includes an outer plate (41) and a heat-conducting plate (42) attached to the inner side of the outer plate (41). A receiving cavity is formed between the heat-conducting plate (42) and the outer plate (41). A heating element (431) for heating the heat-conducting plate (42) is installed in the receiving cavity. A collection groove (51) for collecting powder particles is provided on the bottom side of the several conical plates (4). The several collection grooves (51) together form a collection ring groove (5). The collection ring groove (5) is provided with a discharge port (52) communicating with the outside.

2. The powder cleaning device for engineering plastics dust collector according to claim 1, characterized in that: The heat-conducting plate (42) is provided with several strip-shaped guide grooves (421) at equal intervals to facilitate the powder particles to slide into the collection ring groove (5) after heating, and the strip-shaped guide grooves (421) are respectively located on the same vertical plane as the axis of the powder removal chamber (1).

3. An engineered plastic deduster powder cleaning apparatus as claimed in claim 2, wherein: Each of the conical plates (4) is provided with a blower pipe (6) at one end near the top of the dust removal chamber (1). The blower pipe (6) is connected to a blower and is filled with hot air. The blower pipe (6) is provided with a number of air holes spaced apart. The position of the air holes is directly opposite the strip-shaped guide channel (421), and the position of the number of air holes corresponds one-to-one with the number of strip-shaped guide channels (421).

4. An engineered plastic deduster powder cleaning apparatus as claimed in claim 3, wherein: The heat-conducting plate (42) has a plurality of oblique guide grooves (422) between two adjacent strip guide grooves (421). The lower end of the oblique guide groove (422) along the extension direction of the heat-conducting plate (42) is connected to the strip guide groove (421), and the groove depth of the oblique guide groove (422) is smaller than that of the strip guide groove (421).

5. The powder cleaning device for an engineering plastic powder remover according to claim 3, characterized in that: The ends of several of the strip-shaped guide channels (421) near the collection ring channel (5) are all arc-shaped structures, and the outlets of the strip-shaped guide channels (421) are tangent to the collection ring channel (5). The outlets of several of the strip-shaped guide channels (421) are all facing the discharge port (52).

6. The powder cleaning apparatus of claim 1, wherein: The position of the discharge port (52) along the axis of the powder removal chamber (1) is lower than other positions on the collection ring groove (5).

7. The powder cleaning apparatus of claim 1, wherein: The air inlet (13) is located above the conical plate (4) along the axis of the dust removal chamber (1). An air inlet pipe (3) filled with dust-containing gas is installed inside the air inlet (13), and the outlet end of the air inlet pipe (3) is coaxial with the dust removal chamber (1).

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