Alumina powder sampling and suction device and use method thereof

Abstract

The present application discloses an alumina powder sampling suction device and a method of using the same, and belongs to the field of sampling technology. It includes a first transmission tube, a second transmission tube, a connecting device and a hose, wherein the connecting device is located between the first transmission tube and the second transmission tube, the first transmission tube, the second transmission tube and the connecting device are centrally connected, one end of the first transmission tube is connected to an alumina powder production device, a suction device is provided in the connecting device, a hopper assembly is detachably connected to the outside of the first transmission tube, and the suction device and the hopper assembly are connected by a hose. The present application solves the technical problem that the conventional sampling method can only be fixed in one place, and the alumina powder can be sampled at a fixed point, and the alumina powder cannot be collected comprehensively, thereby reducing the accuracy of the sample.

Description

Technical Field

[0001] The present application relates to the field of sampling technology, and specifically to an aluminum oxide powder sampling suction device and a method for using the same. Background Art

[0002] Alumina powder is a fine-grained powder made of high-purity aluminum oxide particles. Alumina powder has excellent properties such as high purity, high hardness, high temperature resistance, electrical insulation, and chemical stability. It is an important functional building material raw material and is widely used in ceramics, coatings, plastics, electronic materials, refractory materials, rubber, leather making and other fields.

[0003] After the alumina powder processing is completed, the alumina powder will be sampled. The usual sampling method can only be fixed in one place, and the alumina powder is sampled at a fixed point. The alumina powder cannot be collected comprehensively, thereby reducing the accuracy of the sample. Therefore, it is necessary to provide an alumina powder sampling suction device to solve the above problems. Summary of the invention

[0004] Based on the above problems existing in the prior art, the purpose of the present application is to provide an aluminum oxide powder sampling and suction device and a method of using the same to solve the problems raised in the above background technology.

[0005] The technical solution adopted by the present application to solve its technical problem is: an alumina powder sampling and suction device and a method of using the same, comprising a first transmission tube, a second transmission tube, a connecting device and a hose, wherein the connecting device is located between the first transmission tube and the second transmission tube, the first transmission tube, the second transmission tube and the connecting device are centrally connected, one end of the first transmission tube is connected to an alumina powder production device, a suction device is arranged in the connecting device, a hopper assembly is detachably connected to the outside of the first transmission tube, and the suction device and the hopper assembly are connected via a hose;

[0006] The connecting device comprises a rotating member, a ball swivel, an extension member, and a third flange member. The interior of the rotating member is hollow. The two sides of the rotating member are fixedly connected with the ball swivel, the extension member, and the third flange member in sequence from near to far. The ball swivel is arranged between the rotating member and the extension member. A damping device is arranged in the ball swivel. The material suction device is arranged in the rotating member.

[0007] The material suction device is U-shaped and comprises a collecting end, a conveying end and a solid end. The conveying end and the solid end are parallel and located on both sides of the collecting end.

[0008] Furthermore, the first transmission pipe includes a first pipeline and a first flange, the first flange is fixedly connected to the first pipeline, the second transmission pipe includes a second pipeline and a second flange, the second flange is fixedly connected to the second pipeline, and the inner diameters of the first pipeline and the second pipeline are consistent.

[0009] Furthermore, the rotating member includes an outer shell and an inner shell, a cavity is formed between the outer shell and the inner shell, the center of the inner shell is a connecting portion, and the inner diameter of the connecting portion is consistent with the inner diameters of the first pipe and the second pipe.

[0010] Furthermore, the collecting end is located in the connecting part, the conveying end and the solid end are slidably connected to the inner shell, a straw and a cylinder are provided on the outer shell, the straw is slidably connected to the outer shell, one end of the straw is fixedly connected to the conveying end, the cylinder is fixedly connected to the outer shell, a piston rod is slidably connected to the top of the cylinder, the piston rod is slidably connected to the outer shell, one end of the piston rod is fixedly connected to the solid end, and the cylinder controls the piston rod to slide the suction device.

[0011] Furthermore, a plurality of suction holes are provided on the suction device, and the suction holes are arranged around the inner diameter of the collecting end. An annular suction channel is provided in the collecting end, and the annular suction channel is connected with the suction holes. A horizontal suction channel is provided in the conveying end, and one end of the horizontal suction channel is connected with the annular suction channel, and the other end of the horizontal suction channel is connected with the suction pipe.

[0012] Furthermore, the hopper assembly includes a fastener, a connecting platform, an adjusting disk, an extension column, a collecting box, a suction tube, and a collecting bucket. The fastener is divided into a nesting part and a connecting part. The diameter of the nesting part matches the diameter of the first pipe. The connecting part is located on one side of the nesting part. The connecting platform is fixedly connected to the connecting part. One side of the adjusting disk is rotatably connected to the connecting platform. The other side of the adjusting disk is fixedly connected to the extension column. One side of the extension column is fixedly connected to one side of the collecting bucket.

[0013] Furthermore, the top of the collection bucket is connected to the collection box, and the suction pipe is connected to both ends of the collection box. The suction pipe includes an air inlet end and an air suction end, and the air inlet end and the air suction end are respectively arranged on both sides of the collection box, and a suction device is connected to one side of the air suction end.

[0014] Furthermore, a discharge port is provided at the bottom of the collecting bucket, a switch is provided in the discharge port, a feed port is connected to one side of the collecting bucket, an infrared sensor is fixedly connected to the inner wall of the collecting bucket, and the height of the infrared sensor is higher than the feed port.

[0015] Furthermore, the infrared sensor, the cylinder, the discharge port, the air suction device and the control center are electrically connected.

[0016] Further, the following steps are included:

[0017] Step 1: Install the connecting device in the transmission tube for transmitting alumina powder;

[0018] Step 2, adjusting the suction device to a specified position;

[0019] Step 3, installing the hopper assembly on the first pipeline;

[0020] Step 4: Turn on the suction device and start sampling.

[0021] The beneficial effects of the present application are as follows: the present application provides an alumina powder sampling and suction device and a method of using the same. By providing a suction device, the position of the collection end in the pipeline for transmitting the alumina powder can be adjusted to sample the alumina powder at different locations in the pipeline. At the same time, a rotatable hopper assembly is provided, which can adapt to both horizontally arranged transmission pipelines and vertically arranged transmission pipelines, thereby expanding the use scenarios of the device and solving the technical problem that the conventional sampling method can only be fixed in one place, sampling the alumina powder at a fixed point, and failing to comprehensively collect the alumina powder, thereby reducing the accuracy of the sample.

[0022] In addition to the above-described purposes, features and advantages, the present application also has other purposes, features and advantages. The present application will be further described in detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings constituting part of the present application are used to provide a further understanding of the present application. The exemplary embodiments and descriptions of the present application are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0024] Figure 1 It is an overall schematic diagram of this application;

[0025] Figure 2 A schematic diagram of the transmission tube of the present application;

[0026] Figure 3 A schematic diagram of the connection device of the present application;

[0027] Figure 4 This is a front view of the connection device of the present application;

[0028] Figure 5 A cross-sectional schematic diagram of the connection device of the present application;

[0029] Figure 6 For this application Figure 5 Enlarged schematic diagram of area A in the middle;

[0030] Figure 7 This is a cross-sectional schematic diagram of the suction device of the present application;

[0031] Figure 8 A schematic diagram of a hopper assembly for this application;

[0032] Fig. 9 This is a schematic diagram of the installation position of the infrared sensor of this application;

[0033] Fig.10 This is a schematic diagram of the extension of the piston rod in the suction assembly of the present application;

[0034] Fig.11 This is a schematic diagram of the transmission tube of the present application when the device is placed horizontally for processing;

[0035] Among them, the reference numerals in the figure are:

[0036] 1. first transmission pipe; 101. first pipeline; 102. first flange;

[0037] 2. second transmission pipe; 201. second pipeline; 202. second flange;

[0038] 3. Connecting device; 301. Rotating member; 3011. Outer shell; 3012. Inner shell; 3013. Cavity; 3014. Connecting portion; 302. Ball swivel; 303. Extension member; 304. Third flange member;

[0039] 4. Hopper assembly; 401. Fastener; 4011. Nesting part; 4012. Connecting part; 402. Connecting platform; 403. Adjusting plate; 404. Extension column; 405. Collection box; 406. Suction pipe; 4061. Air inlet end; 4062. Air suction end; 407. Collection bucket; 4071. Discharge port; 4072. Infrared sensor; 4073. Feed port;

[0040] 5. Suction device; 501. Collection end; 5011. Suction hole; 5012. Annular suction channel; 502. Delivery end; 5021. Horizontal suction channel; 503. Solid end; 504. Suction tube; 505. Cylinder; 5051. Piston rod;

[0041] 6. Hose. DETAILED DESCRIPTION

[0042] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0043] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present application.

[0044] like Figure 1-11 As shown, the present application provides a technical solution: an alumina powder sampling and suction device and a method of using the same, comprising a first transmission tube 1, a second transmission tube 2, a connecting device 3 and a hose 6, wherein the connecting device 3 is located between the first transmission tube 1 and the second transmission tube 2, the first transmission tube 1, the second transmission tube 2 and the connecting device 3 are centrally connected, one end of the first transmission tube 1 is connected to an alumina powder production device (not shown in the figure), a suction device 5 is arranged in the connecting device 3, and is used to sample the alumina powder transported in the transmission tube, a hopper assembly 4 is detachably connected to the outer side of the first transmission tube 1, the suction device 5 and the hopper assembly 4 are connected by a hose 6, and the alumina powder sucked by the suction device 5 enters the middle of the hopper assembly 4 through the hose 6, and the sampling is completed.

[0045] like Figure 2 As shown, the first transmission pipe 1 includes a first pipe 101 and a first flange 102, and the first flange 102 is fixedly connected to the first pipe 101. The second transmission pipe 2 includes a second pipe 201 and a second flange 202, and the second flange 202 is fixedly connected to the second pipe 201. The inner diameters of the first pipe 101 and the second pipe 201 are consistent.

[0046] like Figure 3 , 4 As shown, the connecting device 3 includes a rotating member 301, a ball swivel 302, an extension member 303, and a third flange member 304. The interior of the rotating member 301 is hollow. The two sides of the rotating member 301 are fixedly connected with the ball swivel 302, the extension member 303, and the third flange member 304 in sequence from near to far. The ball swivel 302 is arranged between the rotating member 301 and the extension member 303. A damping device is arranged in the ball swivel 302, which will only rotate after reaching a certain force. The ball swivel 302 can make the rotating member 301 rotate on the extension member 303, and the suction device 5 is arranged in the rotating member 301.

[0047] like Figure 5 As shown, the rotating member 301 includes an outer shell 3011 and an inner shell 3012 , a cavity 3013 is formed between the outer shell 3011 and the inner shell 3012 , the center of the inner shell 3012 is a connecting portion 3014 , and the inner diameter of the connecting portion 3014 is consistent with the inner diameters of the first pipe 101 and the second pipe 201 .

[0048] like Figure 6 As shown, the suction device 5 is U-shaped, and includes a collecting end 501, a conveying end 502, and a solid end 503. The conveying end 502 and the solid end 503 are parallel and located on both sides of the collecting end 501, and the collecting end 501 is located in the connecting portion 3014. The conveying end 502 and the solid end 503 are slidably connected to the inner shell 3012. A suction pipe 504 and a cylinder 505 are provided on the outer shell 3011. The suction pipe 504 is slidably connected to the outer shell 3011, one end of the suction pipe 504 is fixedly connected to the conveying end 502, the cylinder 505 is fixedly connected to the outer shell 3011, and a piston rod 5051 is slidably connected to the top of the cylinder 505. The piston rod 5051 is slidably connected to the outer shell 3011, one end of the piston rod 5051 is fixedly connected to the solid end 503, and the cylinder 505 controls the piston rod 5051 to slide the suction device 5.

[0049] like Figure 7 As shown, a plurality of suction holes 5011 are provided on the suction device 5, and the suction holes 5011 are arranged around the inner diameter of the collecting end 501. An annular suction channel 5012 is provided in the collecting end 501, and the annular suction channel 5012 is connected with the suction holes 5011. A horizontal suction channel 5021 is provided in the conveying end 502, and one end of the horizontal suction channel 5021 is connected with the annular suction channel 5012, and the other end of the horizontal suction channel 5021 is connected with the suction pipe 504.

[0050] like Figure 8 , 9 The hopper assembly 4 includes a fastener 401, a connecting platform 402, an adjusting disk 403, an extension column 404, a collecting box 405, a suction pipe 406, and a collecting hopper 407. The fastener 401 is divided into a nesting portion 4011 and a connecting portion 4012. The diameter of the nesting portion 4011 matches the diameter of the first pipe 101. The nesting portion 4011 is sleeved on the first pipe 101 and tightened with threads to fix the hopper assembly 4 on the first pipe 101. The connecting portion 4012 is located on one side of the nesting portion 4011. The connecting platform 402 is fixedly connected to the connecting portion 4012. One side of the adjusting disk 403 is rotatably connected to the connecting platform 402. The other side of the adjusting disk 403 is fixedly connected to the extension column 404. One side of the extension column 404 is fixedly connected to one side of the collecting hopper 407.

[0051] The top of the collection bucket 407 is connected to the collection box 405, and the suction pipe 406 is connected to both ends of the collection box 405. The suction pipe 406 includes an air inlet end 4061 and an air suction end 4062. The air inlet end 4061 and the air suction end 4062 are respectively arranged on both sides of the collection box 405, and a suction device (not shown in the figure) is connected to one side of the air suction end 4062.

[0052] A discharge port 4071 is provided at the bottom of the collecting bucket 407, a switch is provided inside the discharge port 4071, one side of the collecting bucket 407 is connected to a feed port 4073, an infrared sensor 4072 is fixedly connected to the inner wall of the collecting bucket 407, the infrared sensor 4072 can detect the height of the alumina powder in the collecting bucket 407, and the height of the infrared sensor 4072 is higher than the feed port 4073.

[0053] The infrared sensor 4072 , the air cylinder 505 , the material outlet 4071 , and the air suction device are electrically connected to the control center. The control center can receive data from the infrared sensor 4072 to control the extension and retraction of the air cylinder 505 and the opening and closing of the material outlet 4071 .

[0054] Embodiment 1: Working principle of the device when in use

[0055] Step 1: Install the connecting device 3 in the transmission tube for transmitting aluminum oxide powder.

[0056] Specifically, the third flange members 304 on both sides of the connecting device 3 are aligned with the holes on the first flange member 102 and the second flange member 202 for connection, and the connecting device 3 is fixed between the first pipeline 101 and the second pipeline 201. When the alumina powder is transported, it will flow through the connecting device 3 when it is transferred from the first pipeline 101 to the second pipeline 201, and at the same time, the collecting end 501 on the suction device 5 will be in contact.

[0057] Step 2: Adjust the suction device 5 to the specified position

[0058] Specifically, the rotating member 301 is rotated, and the rotating member 301 is driven by the ball swivel 302 to rotate, and at the same time, the rotating member 301 drives the suction device 5 to rotate. When the suction device 5 reaches the specified position, the rotation of the rotating member 301 is stopped. Affected by the damping of the ball swivel 302, the rotating member 301 will not rotate without applying external force. Fig.10 As shown, the cylinder 505 is controlled to extend through the control center, and at this time the piston rod 5051 extends from the cylinder 505, and the suction device 5 gradually approaches the center of the connecting portion 3014 from the inner shell 3012, the conveying end 502 and the solid end 503 slide on the inner shell 3012, and the suction tube 504 slides on the outer shell 3011. When the collection end 501 reaches the corresponding position, the cylinder 505 is controlled by the control center to stop working.

[0059] Step 3: Install the hopper assembly 4 on the first pipeline 101

[0060] Specifically, open the fastener 401 and put the nesting part 4011 on the outer ring of the first pipe 101, tighten the connection of the nesting part 4011 with a thread, and fix the fastener 401 on the first pipe 101. Since the adjustment disk 403 is set and affected by gravity, the discharge port 4071 on the collection bucket 407 is always perpendicular to the ground, and one end of the hose 6 is connected to the straw 504, and the other end of the hose 6 is connected to the feed port 4073. At this time, the alumina powder can enter the collection bucket 407 from the straw 504 through the hose 6.

[0061] Step 4: Turn on the suction device and start sampling

[0062] Alumina powder flows along the first transmission pipe 1, the connecting device 3, and the second transmission pipe 2 in sequence. The suction device is turned on, and air enters the collecting box 405 from the air inlet end 4061. The collecting bucket 407 is hollow, so that the suction device 5 generates suction. The flowing alumina powder enters the annular suction channel 5012 through the suction hole 5011, and then passes through the horizontal suction channel 5021, the suction pipe 504, the hose 6, and the feed port 4073 in turn to reach the collecting bucket 407. The surface height of the alumina powder to be collected in the collecting bucket 407 is set in the control center. After the infrared sensor 4072 detects that the alumina powder has reached the set surface height in the collecting bucket 407, the signal is transmitted to the control center. The control center controls the suction device to stop suction, and the collection is completed. The discharge port 4071 is opened through the control center to transfer the collected alumina powder to the relevant device for detection.

[0063] Example 2: Collecting aluminum oxide powder from different parts of the connecting portion 3014

[0064] Case 1: When the pipeline for conveying alumina powder is set vertically

[0065] Specifically, the detection and sampling method is consistent with the above-mentioned embodiment 1. During the sampling process, the control center controls the cylinder 505 to extend and retract, driving the collection end 501 to move back and forth in the connecting part 3014. Within the length range of the hose 6, the rotating part 301 is rotated to make the collection end 501 move in an arc in the connecting part 3014 to collect alumina powder in different areas.

[0066] Case 2: When the pipeline for conveying alumina powder is set horizontally

[0067] Specifically, if Fig.11As shown, when the first pipeline 101 and the second pipeline 201 are arranged horizontally, the collecting bucket 407 is rotated to make the discharge port 4071 perpendicular to the ground. When the alumina powder is being transmitted, the alumina powder does not fill the first pipeline 101 and the second pipeline 201. At this time, the rotating member 301 is rotated to a vertical position on the surface of the alumina powder. After the suction device is turned on, the cylinder 505 is slowly controlled to extend, and the infrared sensor 4072 detects the alumina powder in the collecting bucket 407. When it is detected that the alumina powder in the collecting bucket 407 enters, the collecting end 501 collects the alumina powder in the upper layer of the transmission tube. The angle of the rotating member 301 is rotated 180 degrees, and the cylinder 505 is retracted at the same time. At this time, the collecting end 501 collects the alumina powder in the bottom layer of the transmission tube.

[0068] It should be noted that when alumina powder is blocked in the first pipe 101 and the second pipe 201, by controlling the cylinder 505 to make the piston rod 5051 reciprocate and extend, external force can be applied to the alumina powder in the pipes, thereby promoting the flow of alumina powder in the first pipe 101 and the second pipe 201 and improving the transmission efficiency.

[0069] In summary, the device is equipped with a suction device 5, which can adjust the position of the collecting end 501 in the pipeline for conveying alumina powder, and sample the alumina powder in different places in the pipeline. At the same time, a rotatable hopper assembly 4 is provided, which can adapt to both horizontally arranged transmission pipelines and vertically arranged transmission pipelines, thereby expanding the use scenarios of the device and solving the technical problem that the conventional sampling method can only be fixed in one place, and the alumina powder can be sampled at a fixed point, and the alumina powder cannot be collected comprehensively, thereby reducing the accuracy of the sample.

[0070] The above description is only the preferred embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. An alumina powder sampling and suction device, comprising a first transmission tube (1), a second transmission tube (2), a connecting device (3) and a hose (6), characterized in that: The connecting device (3) is located between the first transmission pipe (1) and the second transmission pipe (2); the first transmission pipe (1), the second transmission pipe (2) and the connecting device (3) are centrally connected; one end of the first transmission pipe (1) is connected to an alumina powder production device; a suction device (5) is provided in the connecting device (3); a hopper assembly (4) is detachably connected to the outside of the first transmission pipe (1); and the suction device (5) and the hopper assembly (4) are connected via a hose (6); The connecting device (3) comprises a rotating member (301), a ball swivel (302), an extension member (303), and a third flange member (304); the rotating member (301) is hollow inside; the two sides of the rotating member (301) are fixedly connected to the ball swivel (302), the extension member (303), and the third flange member (304) in sequence from near to far; the ball swivel (302) is arranged between the rotating member (301) and the extension member (303); a damping device is arranged inside the ball swivel (302); and the material suction device (5) is arranged inside the rotating member (301); The material suction device (5) is U-shaped, and comprises a collecting end (501), a conveying end (502), and a solid end (503), wherein the conveying end (502) and the solid end (503) are parallel and located on both sides of the collecting end (501); The rotating member (301) comprises an outer shell (3011) and an inner shell (3012); a cavity portion (3013) is formed between the outer shell (3011) and the inner shell (3012); the center of the inner shell (3012) is a connecting portion (3014); the inner diameter of the connecting portion (3014) is consistent with the inner diameters of the first pipe (101) and the second pipe (201); The collecting end (501) is located in the connecting portion (3014); the conveying end (502) and the solid end (503) are slidably connected to the inner shell (3012); a suction pipe (504) and a cylinder (505) are provided on the outer shell (3011); the suction pipe (504) is slidably connected to the outer shell (3011); one end of the suction pipe (504) is fixedly connected to the conveying end (502); the cylinder (505) is fixedly connected to the outer shell (3011); a piston rod (5051) is slidably connected to the top of the cylinder (505); the piston rod (5051) is slidably connected to the outer shell (3011); one end of the piston rod (5051) is fixedly connected to the solid end (503); and the cylinder (505) controls the piston rod (5051) to slide the suction device (5); The suction device (5) is provided with a plurality of suction holes (5011), the suction holes (5011) being arranged around the inner diameter of the collecting end (501), the collecting end (501) being provided with an annular suction channel (5012), the annular suction channel (5012) being connected to the suction holes (5011), the conveying end (502) being provided with a horizontal suction channel (5021), one end of the horizontal suction channel (5021) being connected to the annular suction channel (5012), and the other end of the horizontal suction channel (5021) being connected to the suction pipe (504).

2. The aluminum oxide powder sampling and suction device according to claim 1, characterized in that: The first transmission pipe (1) comprises a first pipe (101) and a first flange (102), the first flange (102) being fixedly connected to the first pipe (101), the second transmission pipe (2) comprises a second pipe (201) and a second flange (202), the second flange (202) being fixedly connected to the second pipe (201), and the inner diameters of the first pipe (101) and the second pipe (201) are the same.

3. The aluminum oxide powder sampling and suction device according to claim 1, characterized in that: The hopper assembly (4) comprises a fastener (401), a connecting platform (402), an adjusting disk (403), an extension column (404), a collecting box (405), a suction pipe (406), and a collecting hopper (407); the fastener (401) is divided into a nesting portion (4011) and a connecting portion (4012); the diameter of the nesting portion (4011) matches the diameter of the first pipeline (101); the connecting portion (4012) is located on one side of the nesting portion (4011); the connecting platform (402) is fixedly connected to the connecting portion (4012); one side of the adjusting disk (403) is rotatably connected to the connecting platform (402); the other side of the adjusting disk (403) is fixedly connected to the extension column (404); and one side of the extension column (404) is fixedly connected to one side of the collecting hopper (407).

4. The aluminum oxide powder sampling and suction device according to claim 3, characterized in that: The top of the collection hopper (407) is in communication with the collection box (405), and the suction pipe (406) is in communication with both ends of the collection box (405). The suction pipe (406) comprises an air inlet end (4061) and an air suction end (4062), and the air inlet end (4061) and the air suction end (4062) are respectively arranged on both sides of the collection box (405), and one side of the air suction end (4062) is connected to an air suction device.

5. The aluminum oxide powder sampling and suction device according to claim 4, characterized in that: A discharge port (4071) is provided at the bottom of the collecting bucket (407), a switch is provided inside the discharge port (4071), one side of the collecting bucket (407) is connected to a feed port (4073), an infrared sensor (4072) is fixedly connected to the inner wall of the collecting bucket (407), and the height of the infrared sensor (4072) is higher than the feed port (4073).

6. The aluminum oxide powder sampling and suction device according to claim 5, characterized in that: The infrared sensor (4072), the cylinder (505), the discharge port (4071), and the air suction device are electrically connected to the control center.

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