Powder remover and dust removal system for particle materials

Abstract

The utility model provides a dust remover and a dust removal system for particle materials, the dust remover comprises: a machine body, the machine body is provided with a dust removal cavity, a feed port, a discharge port, an air inlet and an exhaust port, the feed port, the discharge port, the air inlet and the exhaust port are all communicated with the dust removal cavity, the air inlet is used for inputting airflow, and the exhaust port is used for outputting airflow with dust in the dust removal cavity; the first flow guide component is arranged in the dust removal cavity, the first flow guide component is located between the feeding port and the discharging port, a material guide part is arranged on the top wall of the first flow guide component, the material guide part is arranged obliquely downwards, and the material guide part is used for receiving particle materials output from the feeding port and guiding the particle materials to the discharging port; the material guiding part is provided with a plurality of first air holes, the first air holes vertically penetrate through the material guiding part, the hole diameter of the first air holes is smaller than the particle size of the particle materials, and the first air holes are used for allowing airflow input by the air inlet to flow upwards. And the equipment structure is simplified, so that the manufacturing cost and the maintenance difficulty are obviously reduced.

Description

Technical Field

[0001] This application relates to the field of dust removal technology for particulate materials, and in particular to a dust collector and dust removal system for particulate materials. Background Technology

[0002] Existing plastic particle dust collectors, such as the utility model patent with authorization announcement number CN214184385U, disclose a dust removal scheme that combines dual blower airflow and agitation by an agitator. The specific working process of this device is as follows: the plastic particles to be dusted are placed into the groove of the housing, the sealing cover is closed, and two blowers are started. The blowers draw in air through the air inlet hood and blow air into the groove through the second and first air slots. Simultaneously, the agitator is driven to rotate, agitating the plastic particles and thus achieving dust removal.

[0003] However, the above solution has the following drawbacks:

[0004] While mechanical stirring can improve dust removal efficiency, it requires a dedicated stirring drive mechanism, which increases equipment costs. Utility Model Content

[0005] This application provides a dust collector and dust removal system for particulate materials to solve the problems existing in related technologies. The technical solution is as follows:

[0006] In a first aspect, embodiments of this application provide a dust collector for particulate materials, comprising:

[0007] The machine body has a dust removal chamber, a feed inlet, a discharge outlet, an air inlet, and an exhaust outlet. The feed inlet, discharge outlet, air inlet, and exhaust outlet are all connected to the dust removal chamber. The feed inlet is located at the top of the machine body, and the discharge outlet is located at the bottom of the machine body. The air inlet is used to input airflow, and the exhaust outlet is used to output the dust-laden airflow from the dust removal chamber.

[0008] A first flow guiding component is connected to the machine body and is disposed within the dust removal chamber. The first flow guiding component is located between the feed inlet and the discharge outlet. The top wall of the first flow guiding component is provided with a material guiding section, which is obliquely downward. The material guiding section is used to receive the particulate material output from the feed inlet and guide the particulate material to the discharge outlet. The material guiding section has a plurality of first vent holes, which penetrate the material guiding section from top to bottom. The diameter of the first vent holes is smaller than the particle size of the particulate material. The first vent holes are used to allow the airflow input from the air inlet to flow upward, so as to separate the particulate material and dust flowing through the material guiding section.

[0009] In one embodiment, the dust collector for particulate materials further includes:

[0010] The second flow guide component is connected to the machine body and is disposed inside the dust removal chamber. The second flow guide component is located between the first flow guide component and the discharge port. The second flow guide component is obliquely downward and is used to receive the particulate material output from the material guide section and guide the particulate material to the discharge port. The second flow guide component has multiple second vent holes, which penetrate the second flow guide component from top to bottom. The diameter of the second vent holes is smaller than the particle size of the particulate material. The second vent holes are used to allow the airflow input from the air inlet to flow upward to separate the particulate material and dust flowing through the second flow guide component.

[0011] In one embodiment, there are two material guiding sections, the upper ends of the two material guiding sections are connected, the two material guiding sections are symmetrically distributed, and each material guiding section is provided with the first air vent.

[0012] There are two second flow guiding components, each of which is located between the corresponding material guiding part and the discharge port, and each of the second flow guiding components has the second air vent.

[0013] In one embodiment, the dust collector for particulate materials further includes:

[0014] The third flow guiding component is connected to the machine body and is disposed in the dust removal chamber. The third flow guiding component is located between the feed inlet and the first flow guiding component. The third flow guiding component has a flow guiding channel. The upper end of the flow guiding channel is connected to the feed inlet, and the lower end of the flow guiding channel is located above the material guiding part. The cross-section of the flow guiding channel gradually decreases from top to bottom.

[0015] In one embodiment, the machine body is provided with an observation section, which is used for a user to visually observe the dust removal status inside the dust removal chamber from outside the machine body.

[0016] In one embodiment, the machine body has an inspection port and an inspection door, the inspection port being connected to the dust removal chamber, and the inspection door being movably disposed on the machine body, the inspection door being movable to allow the inspection port to be opened or closed.

[0017] Secondly, embodiments of this application provide a dust removal system, including:

[0018] The dust collector has an inlet for connection to an external air supply device;

[0019] A negative pressure device, the inlet of which is connected to the outlet of the dust collector; and

[0020] In the aforementioned dust collector for particulate materials, the air inlet is connected to the outlet of the negative pressure device, and the exhaust port is connected to the inlet of the dust collector.

[0021] In one embodiment, the dust removal system further includes:

[0022] The first filter has an inlet that is connected to an external air supply device and an outlet that is connected to the inlet of the dust collector. The first filter is used to filter the gas output by the air supply device.

[0023] The second filter has its inlet connected to the outlet of the negative pressure device and its outlet connected to the air inlet. The second filter is used to filter the gas output by the negative pressure device.

[0024] In one embodiment, the dust removal system further includes:

[0025] A first valve is provided on the dust collector and is used to control the opening and closing of the dust discharge port of the dust collector;

[0026] A level switch, mounted on the dust collector, is used to monitor the amount of dust within the dust collector; and

[0027] A controller electrically connected to the level switch, the controller being used to issue an alarm message based on feedback information from the level switch.

[0028] In one embodiment, the dust removal system further includes:

[0029] A material silo, the material silo having a storage chamber and a discharge port, the storage chamber being used to store granular materials, and the discharge port being connected to the storage chamber and the inlet;

[0030] The second valve is located on the material silo and is used to control the opening and closing of the discharge port.

[0031] A rotary valve is provided on the connecting pipe between the discharge port and the feed port, and the rotary valve is used to control the material conveying flow rate of the connecting pipe.

[0032] The advantages or beneficial effects of the above technical solutions include at least the following:

[0033] This utility model's dust collector utilizes a first guide component with an inclined guide section and a first air vent to achieve efficient dynamic separation of particulate matter and dust through the upward penetration of airflow. Compared to traditional mechanically agitated dust collectors, this utility model eliminates complex components such as the agitator motor, transmission mechanism, and agitator paddle, significantly simplifying the equipment structure and thus substantially reducing manufacturing costs and maintenance difficulty.

[0034] During the dust removal process, the particulate material slides naturally down the inclined surface of the guide section, while being disturbed by the upward airflow, which effectively removes the dust. Because a pure airflow separation method is used, particle collision and wear caused by mechanical stirring are avoided. It is particularly suitable for fine dust removal of brittle plastic particles (such as recycled materials, PET, etc.) and can effectively reduce the damage rate of particulate materials.

[0035] Furthermore, the inclined design of the feed guide, combined with the airflow scouring effect of the first vent, effectively prevents the accumulation and blockage of particulate materials, ensuring continuous and stable operation. At the same time, since the entire machine has no moving mechanical parts, it has a low failure rate and long maintenance cycles, making it particularly suitable for the needs of continuous industrial production.

[0036] In terms of structural layout, this utility model adopts a vertical flow channel design, with the feed inlet located at the top of the dust removal chamber and the discharge outlet at the bottom. The first guide component is located between the two, making full use of the gravity flow principle to achieve automatic falling of particulate materials. This design further simplifies the dust collector, reduces energy consumption and equipment costs, and improves the reliability and stability of the dust collector.

[0037] In summary, this utility model, while ensuring efficient dust removal, has outstanding advantages such as simple structure, low cost, low energy consumption, and convenient maintenance, and is especially suitable for industrial dust removal needs of materials such as plastic granules and chemical granules.

[0038] The above overview is for illustrative purposes only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of this application will become readily apparent from the accompanying drawings and the following detailed description. Attached Figure Description

[0039] In the accompanying drawings, unless otherwise specified, the same reference numerals throughout the various drawings denote the same or similar parts or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings depict only some embodiments disclosed in this application and should not be construed as limiting the scope of this application.

[0040] Figure 1 This is a three-dimensional structural diagram of the dust collector of this utility model;

[0041] Figure 2 for Figure 1 Enlarged view of section A in the image;

[0042] Figure 3 This is a three-dimensional structural diagram of the dust collector of this utility model;

[0043] Figure 4 This is a simplified structural diagram of the dust removal system of this utility model.

[0044] Figure Labels

[0045] 1. Machine body; 11. Dust removal chamber; 12. Feed inlet; 13. Discharge outlet; 14. Air inlet; 15. Exhaust outlet; 16. Observation section; 17. Inspection door; 2. First flow guiding component; 21. Material guiding section; 211. First vent hole; 3. Second flow guiding component; 31. Second vent hole; 4. Third flow guiding component; 41. Flow guiding channel; 5. Dust collector; 6. Negative pressure device; 7. First filter; 8. Second filter; 9. First valve; 10. Material level switch; 20. Material bin; 30. Second valve; 40. Rotary valve; 50. Flow meter; 60. Pressure transmitter. Detailed Implementation

[0046] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this application. Therefore, the drawings and description are considered to be exemplary in nature and not restrictive.

[0047] See Figures 1-3 This invention illustrates a preferred embodiment of a dust collector for particulate materials, comprising:

[0048] The machine body 1 has a dust removal chamber 11, a feed inlet 12, a discharge outlet 13, an air inlet 14, and an exhaust outlet 15. The feed inlet 12, discharge outlet 13, air inlet 14, and exhaust outlet 15 are all connected to the dust removal chamber 11. The feed inlet 12 is located at the top of the machine body 1, the discharge outlet 13 is located at the bottom of the machine body 1, the air inlet 14 is used to input airflow, and the exhaust outlet 15 is used to output the dust-laden airflow from the dust removal chamber 11.

[0049] The first guide component 2 is connected to the machine body 1 and is located inside the dust removal chamber 11. The first guide component 2 is located between the feed inlet 12 and the discharge outlet 13. The top wall of the first guide component 2 is provided with a guide section 21, which is obliquely downward. The guide section 21 is used to receive the particulate material output from the feed inlet 12 and guide the particulate material to the discharge outlet 13. The guide section 21 has multiple first vent holes 211, which penetrate the guide section 21 from top to bottom. The diameter of the first vent holes 211 is smaller than the particle size of the particulate material to prevent the particulate material from entering the first vent holes 211. At the same time, it can ensure that the airflow penetrates evenly. The first vent holes 211 are used to allow the airflow input from the air inlet 14 to flow upward to separate the particulate material and dust flowing through the guide section 21.

[0050] The dust collector of this invention utilizes a first guide component 2 with an inclined guide section 21 and a first air vent 211 to achieve efficient dynamic separation of particulate matter and dust through the upward penetration of airflow. Compared with traditional mechanical stirring dust collectors, this invention eliminates complex components such as stirring motors, transmission mechanisms, and stirring paddles, significantly simplifying the equipment structure and thus significantly reducing manufacturing costs and maintenance difficulty.

[0051] During the dust removal process, the particulate material slides naturally down the inclined surface of the guide section 21, while being disturbed by the upward airflow, which effectively removes the dust. Because a pure airflow separation method is used, particle collision and wear caused by mechanical stirring are avoided. It is particularly suitable for fine dust removal of brittle plastic particles (such as recycled materials, PET, etc.) and can effectively reduce the damage rate of particulate materials.

[0052] Furthermore, the inclined design of the feed guide 21, combined with the airflow scouring effect of the first vent 211, effectively prevents the accumulation and blockage of particulate materials, ensuring continuous and stable operation. At the same time, since the entire machine has no moving mechanical parts, the equipment has a low failure rate and a long maintenance cycle, making it particularly suitable for the needs of continuous industrial production.

[0053] In terms of structural layout, this utility model adopts a vertical flow channel design, with the feed inlet 12 located at the top of the dust removal chamber 11 and the discharge outlet 13 located at the bottom. The first guide component 2 is located between the two, making full use of the gravity flow principle to realize the automatic falling of particulate materials. This design further simplifies the dust collector, reduces energy consumption and equipment costs, and improves the reliability and stability of the dust collector.

[0054] In summary, this utility model, while ensuring efficient dust removal, has outstanding advantages such as simple structure, low cost, low energy consumption, and convenient maintenance, and is especially suitable for industrial dust removal needs of materials such as plastic granules and chemical granules.

[0055] See Figure 1In one embodiment, the dust collector for particulate materials further includes:

[0056] The second guide component 3 is connected to the machine body 1 and is located inside the dust removal chamber 11. The second guide component 3 is situated between the first guide component 2 and the discharge port 13. The second guide component 3 is obliquely downward and is used to receive the granular material output from the material guide section 21 and guide the granular material to the discharge port 13. The second guide component 3 has multiple second vent holes 31, which penetrate the second guide component 3 both vertically. The diameter of the second vent holes 31 is smaller than the particle size of the granular material to restrict the granular material from entering the second vent holes 31 and prevent the second vent holes 31 from becoming blocked. The second vent holes 31 are used to allow the airflow input from the air inlet 14 to flow upward to separate the granular material and dust flowing through the second guide component 3. By adding a second flow guide component 3, a two-stage dust separation structure is formed with the first flow guide component 2, allowing the particulate material to undergo two airflow scouring processes during its descent, further stripping away residual dust and significantly improving the dust removal effect. In addition, the second flow guide component 3 is obliquely positioned, forming a stepped flow path with the first flow guide component 2, extending the flow time of the particulate material in the dust removal chamber 11, while achieving more thorough dust separation through two airflow impacts. Furthermore, the second vent 31 of the second flow guide component 3 works in synergy with the first vent 211 to form a layered airflow disturbance, avoiding the dead zone problem that may exist in single-stage dust removal, ensuring that all surfaces of the particulate material are in full contact with the airflow, and improving the uniformity of dust stripping. Moreover, while maintaining the advantage of no mechanical stirring, the performance is upgraded by adding the second flow guide component 3, allowing it to adapt to different dust removal standards without complex modifications.

[0057] See Figure 1 and Figure 3 In one embodiment, there are two material guiding parts 21, the upper ends of the two guiding parts are connected, the two guiding parts are symmetrically distributed, and each guiding part is provided with a first vent hole 211.

[0058] There are two second flow guiding components 3, each located between the corresponding material guiding section 21 and the discharge port 13, and each second flow guiding component 3 has a second vent 31. Thus, the parallel structure of the symmetrical double material guiding section 21 and the double second flow guiding components 3 forms two independent dust removal channels, significantly improving dust removal efficiency. Furthermore, the symmetrical layout, combined with the corresponding vent array, ensures that the airflow forms a symmetrical flow field within the dust removal chamber 11, eliminating the "airflow imbalance" phenomenon that may exist in unilateral dust removal, and making the particulate material more evenly exposed to airflow.

[0059] See Figure 1 and Figure 3 In one embodiment, the dust collector for particulate materials further includes:

[0060] The third guide component 4 is connected to the machine body 1 and is located inside the dust removal chamber 11. It lies between the feed inlet 12 and the first guide component 2. The third guide component 4 has a guide channel 41, the upper end of which connects to the feed inlet 12, and the lower end of which is located above the guide section 21. The cross-section of the guide channel 41 gradually narrows from top to bottom. Because the guide channel 41 adopts a tapered design (wider at the top and narrower at the bottom), the falling particles are naturally accelerated within the channel, ensuring smooth feeding. Simultaneously, the tapered channel structure effectively suppresses material splashing during feeding, ensuring that all particles can flow through the first guide component 2, thus improving dust removal reliability.

[0061] See Figure 1 In one embodiment, the machine body 1 is provided with an observation section 16, which allows the user to visually observe the dust removal status inside the dust removal chamber 11 from outside the machine body 1. By providing the observation section 16, operators can directly monitor the flow status of particulate materials and the dust removal effect inside the dust removal chamber 11, achieving real-time visual control of the dust removal process. In addition, the observation section 16 can intuitively display possible problems such as material blockage, abnormal airflow, or dust accumulation, significantly shortening troubleshooting time and improving maintenance efficiency. Furthermore, operators can adjust the feeding speed and airflow parameters in real time based on the observed particulate material distribution and airflow status, achieving dynamic optimization of process parameters.

[0062] In one embodiment, the observation section 16 is a structure made of a transparent material, such as glass or transparent plastic.

[0063] See Figure 1 In one embodiment, the body 1 has an inspection port and an inspection door 17. The inspection port connects to the dust removal chamber 11, and the inspection door 17 is movably mounted on the body 1, allowing the inspection port to be opened or closed. By providing the inspection port and the movable inspection door 17, the dust removal chamber 11 can be opened and closed quickly, making routine maintenance operations such as cleaning the inside of the dust collector and replacing parts more convenient and efficient. In addition, the inspection port provides a channel for direct contact with the inside of the dust removal chamber 11, facilitating thorough cleaning and comprehensive inspection of key components such as the first flow guiding component 2, the second flow guiding component 3, the first vent 211, and the second vent 31.

[0064] See Figure 4 This invention illustrates a preferred embodiment of a dust removal system, comprising:

[0065] Dust collector 5, the inlet of dust collector 5 is used to connect with an external air supply device;

[0066] Negative pressure device 6, the inlet of negative pressure device 6 is connected to the outlet of dust collector 5; and

[0067] The aforementioned dust collector for particulate materials has an air inlet 14 connected to the outlet of the negative pressure device 6 and an exhaust outlet 15 connected to the inlet of the dust collector 5.

[0068] The dust removal system of this utility model, by employing the aforementioned dust collector and also by incorporating a first flow guide component 2 with an inclined guide section 21 and a first air vent 211, utilizes the upward penetration of airflow to achieve efficient dynamic separation of particulate matter and dust. Compared to traditional mechanical stirring dust collectors, this utility model eliminates complex components such as stirring motors, transmission mechanisms, and stirring paddles, significantly simplifying the equipment structure and thus significantly reducing manufacturing costs and maintenance difficulty. Furthermore, by adopting a closed-loop design of dust collector 5 + negative pressure device 6 + dust collector, the entire process of dust collection and treatment is achieved, preventing dust leakage and meeting environmental protection requirements. The negative pressure device 6 creates a stable negative pressure within the dust removal chamber 11, resulting in more uniform airflow distribution, improving dust removal efficiency, and simultaneously reducing the residual dust rate of particulate matter.

[0069] See Figure 4 In one embodiment, the dust removal system further includes:

[0070] The first filter 7 has an inlet that is connected to an external air supply device and an outlet that is connected to the inlet of the dust collector 5. The first filter 7 is used to filter the gas output by the air supply device.

[0071] The second filter 8 has its inlet connected to the outlet of the negative pressure device 6, and its outlet connected to the air inlet 14. The second filter 8 is used to filter the gas output from the negative pressure device 6. Thus, the first filter 7 can be used to perform initial filtration of the airflow output from the air supply device, intercepting larger particles in the airflow and limiting their entry into the dust collector 5, thereby protecting the dust collector 5. Meanwhile, the second filter 8 performs high-efficiency filtration of the airflow output from the negative pressure device 6, preventing dust in the airflow from entering the dust collector and reducing its operating load. In other words, through dual filtration at the inlet and outlet, the system's cleanliness and stability are further improved on the basis of existing high-efficiency dust removal.

[0072] See Figure 4 In one embodiment, the dust removal system further includes:

[0073] The first valve 9 is located on the dust collector 5 and is used to control the opening and closing of the dust discharge port of the dust collector 5.

[0074] Level switch 10 is installed on dust collector 5 and is used to monitor the amount of dust inside dust collector 5; and

[0075] The controller is electrically connected to the level switch 10. The controller is used to issue an alarm message based on the feedback information from the level switch 10 to remind the operator to open the first valve 9 in time, so as to discharge the dust in the dust collector 5 in a timely manner, ensure regular dust cleaning, and avoid blockage inside the dust collector 5.

[0076] See Figure 4 In one embodiment, the dust removal system further includes:

[0077] Material bin 20 has a storage chamber and a discharge port. The storage chamber is used to store granular materials, and the discharge port is connected to the storage chamber and the inlet 12.

[0078] The second valve 30 is located on the material silo 20 and is used to control the opening and closing of the discharge port.

[0079] A rotary valve 40 is installed on the connecting pipe between the discharge port and the inlet 12. The rotary valve 40 is used to control the material conveying flow rate of the connecting pipe. In this way, the material bin 20 can be used to temporarily store materials, improving feeding efficiency. At the same time, the rotary valve 40 can achieve stable and controllable conveying of particulate materials, ensuring that the dust removal system receives continuous and uniform feeding, thus improving overall processing efficiency. In addition, the rotary valve 40 can precisely adjust the material conveying volume, thereby achieving quantitative feeding and dynamically matching with the processing capacity of the dust removal system, avoiding the material accumulation or insufficient supply problems caused by traditional gravity feeding. Furthermore, the second valve 30 and the rotary valve 40 form a redundant interception system, which can completely cut off the material flow in maintenance or abnormal situations, improving system safety and operational flexibility.

[0080] In one embodiment, the second valve 30 is a pneumatic valve. Both the pneumatic valve and the rotary valve 40 are electrically connected to the controller of the dust removal system, so that the controller can control the opening and closing of the second valve 30 and the rotary valve 40, thereby realizing the automatic opening and closing of the second valve 30 and the rotary valve 40.

[0081] See Figure 4 In one embodiment, the dust removal system further includes:

[0082] Flow meter 50 is installed on the connecting pipe between negative pressure device 6 and second filter 8. Flow meter 50 is electrically connected to controller. Flow meter 50 is used to monitor the airflow of negative pressure device 6.

[0083] A pressure transmitter 60 is installed on the connecting pipe between the negative pressure device 6 and the second filter 8. The pressure transmitter 60 is electrically connected to the controller and is used to monitor the airflow pressure of the negative pressure device 6. Thus, through the dual monitoring of the flow meter 50 and the pressure transmitter 60, the airflow and pressure parameters of the negative pressure device 6 can be monitored in real time, enabling digital control of the dust removal system's operating status. Simultaneously, based on real-time airflow data, the power of the negative pressure device 6 can be automatically adjusted to optimize energy consumption while ensuring dust removal efficiency.

[0084] In one embodiment, the negative pressure device 6 can be any one of a centrifugal fan, a Roots blower, a vacuum pump, etc.

[0085] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of those different embodiments or examples.

[0086] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0087] The above are merely specific embodiments of this application, but the scope of protection of this application is not limited thereto. Any person skilled in the art can easily conceive of various variations or substitutions within the technical scope disclosed in this application, and these should all be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A deduster for particulate material, characterized in that include: The machine body has a dust removal chamber, a feed inlet, a discharge outlet, an air inlet, and an exhaust outlet. The feed inlet, the discharge outlet, the air inlet, and the exhaust outlet are all connected to the dust removal chamber. The feed inlet is located at the top of the machine body, the discharge outlet is located at the bottom of the machine body, the air inlet is used to input airflow, and the exhaust outlet is used to output the dust-laden airflow from the dust removal chamber. as well as A first flow guiding component is connected to the machine body and is disposed within the dust removal chamber. The first flow guiding component is located between the feed inlet and the discharge outlet. The top wall of the first flow guiding component is provided with a material guiding section, which is obliquely downward. The material guiding section is used to receive the particulate material output from the feed inlet and guide the particulate material to the discharge outlet. The material guiding section has a plurality of first vent holes, which penetrate the material guiding section from top to bottom. The diameter of the first vent holes is smaller than the particle size of the particulate material. The first vent holes are used to allow the airflow input from the air inlet to flow upward, so as to separate the particulate material and dust flowing through the material guiding section.

2. The deduster for granular material according to claim 1, characterized in that, The dust collector for particulate materials further includes: The second flow guide component is connected to the machine body and is disposed inside the dust removal chamber. The second flow guide component is located between the first flow guide component and the discharge port. The second flow guide component is obliquely downward and is used to receive the particulate material output from the material guide section and guide the particulate material to the discharge port. The second flow guide component has multiple second vent holes, which penetrate the second flow guide component from top to bottom. The diameter of the second vent holes is smaller than the particle size of the particulate material. The second vent holes are used to allow the airflow input from the air inlet to flow upward to separate the particulate material and dust flowing through the second flow guide component.

3. The deduster for granular material according to claim 2, characterized in that, The number of the material guiding parts is two, the upper ends of the two guiding parts are connected, the two guiding parts are symmetrically distributed, and each guiding part is provided with the first air vent. There are two second flow guiding components, each of which is located between the corresponding material guiding part and the discharge port, and each of the second flow guiding components has the second air vent.

4. The deduster for granular material according to claim 1, characterized in that, The dust collector for particulate materials further includes: The third flow guiding component is connected to the machine body and is disposed in the dust removal chamber. The third flow guiding component is located between the feed inlet and the first flow guiding component. The third flow guiding component has a flow guiding channel. The upper end of the flow guiding channel is connected to the feed inlet, and the lower end of the flow guiding channel is located above the material guiding part. The cross-section of the flow guiding channel gradually decreases from top to bottom.

5. The deduster for granular material according to claim 1, characterized in that, The machine body is provided with an observation section, which is used for the user to visually observe the dust removal status inside the dust removal chamber from the outside of the machine body.

6. The deduster for granular material according to claim 1, characterized in that, The machine body has an inspection port and an inspection door. The inspection port is connected to the dust removal chamber, and the inspection door is movably disposed on the machine body. The inspection door is movable so that the inspection port can be opened or closed.

7. Dust extraction system, characterized in that include: The dust collector has an inlet for connection to an external air supply device; A negative pressure device, wherein the inlet of the negative pressure device is connected to the outlet of the dust collector; as well as The dust collector for particulate materials according to any one of claims 1-6, wherein the air inlet is connected to the outlet of the negative pressure device, and the exhaust port is connected to the inlet of the dust collector.

8. The dust extraction system of claim 7, wherein, The dust removal system also includes: The first filter has an inlet that is connected to an external air supply device and an outlet that is connected to the inlet of the dust collector. The first filter is used to filter the gas output by the air supply device. The second filter has its inlet connected to the outlet of the negative pressure device and its outlet connected to the air inlet. The second filter is used to filter the gas output by the negative pressure device.

9. The dust removal system according to claim 7, characterized in that, The dust removal system also includes: A first valve is provided on the dust collector and is used to control the opening and closing of the dust discharge port of the dust collector; A level switch, mounted on the dust collector, is used to monitor the amount of dust within the dust collector; and A controller electrically connected to the level switch, the controller being used to issue an alarm message based on feedback information from the level switch.

10. The dust extraction system of claim 7, wherein, The dust removal system also includes: A material silo, the material silo having a storage chamber and a discharge port, the storage chamber being used to store granular materials, and the discharge port being connected to the storage chamber and the inlet; The second valve is located on the material silo and is used to control the opening and closing of the discharge port. A rotary valve is provided on the connecting pipe between the discharge port and the feed port, and the rotary valve is used to control the material conveying flow rate of the connecting pipe.

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