Laser particle size distribution instrument convenient for sample recovery

Abstract

The utility model discloses a laser particle size distribution instrument convenient for sample recovery, which belongs to the technical field of laser particle size distribution instruments, and comprises a laser particle size analyzer, a dry-method dispersion sample introduction system, an air compressor, a filter and a sample filtering and recovering device, the dry-method dispersion sample introduction system is arranged on the side edge of the laser particle size analyzer, and the air compressor is arranged on the side edge of the laser particle size analyzer. The dry dispersion sample introduction system is connected with the laser particle analyzer through a material pipe, the air compressor, the filter and the dry dispersion sample introduction system are connected through air pipes, a first discharge port is formed in the laser particle analyzer, a first feed port is formed in the sample filtering and recycling device, the first discharge port is connected with the first feed port, and the second discharge port is connected with the second feed port. According to the utility model, the centrifugal force principle, the dust adsorption filter cloth, the dust filter screen and the hollow turntable are utilized to filter, separate and recover sample particles, and the sample recycling device is simple in structure, can be movably mounted and dismounted, and is convenient to use. And the recovery cost is saved while the convenience is realized.

Description

Technical Field

[0001] The utility model relates to the technical field of laser particle size distribution instruments, and more specifically to a laser particle size distribution instrument which is convenient for sample recovery. Background Art

[0002] Laser particle size distribution analyzer is an instrument that uses the phenomenon of particle reflection (diffraction) of light to measure particle size. In industrial production, the preparation of some materials has requirements on the particle size of powdered sample raw materials. Before mass production, it is necessary to use a laser particle size distribution analyzer in the laboratory to measure the particle size of powdered sample raw materials. In order to avoid contaminating the laboratory, the sample raw materials after measurement need to be recovered using a sample recovery device. The existing sample recovery device has a complex structure and a relatively high recovery cost. Utility Model Content

[0003] The utility model aims to overcome the shortcomings of the existing sample recovery devices in the prior art, such as complex structures and relatively high recovery costs, and provides a laser particle size distribution analyzer that is convenient for sample recovery to solve the above shortcomings.

[0004] In order to achieve the above-mentioned purpose, the technical solution provided by the utility model is:

[0005] The utility model discloses a laser particle size distribution instrument which is convenient for sample recovery, comprising a laser particle size analyzer, a dry dispersion sampling system, an air compressor, a filter and a filtering and recovering sample device. The dry dispersion sampling system is arranged at the side of the laser particle size analyzer, the dry dispersion sampling system and the laser particle size analyzer are connected through a material pipe, the air compressor, the filter and the dry dispersion sampling system are connected through an air pipe, a first material discharge port is arranged on the laser particle size analyzer, a first material feed port is arranged on the filtering and recovering sample device, the first material discharge port is connected with the first material feed port, a filter drum is arranged in the filtering and recovering sample device, a dust adsorption filter cloth and a dust filter net are arranged on the filter drum, a motor is connected to the filter drum through a rotating shaft, the motor is arranged at the top of an outer frame of the filtering and recovering sample device, the rotating shaft is arranged in the filter drum, three hollow rotating disks are sleeved in sequence on the rotating shaft from top to bottom, a plurality of leakage holes are opened on the hollow rotating disk for sample particles to pass through, a second material discharge port is arranged at the bottom of the filter drum, a first air outlet is arranged at the top of the outer frame, and a third material discharge port is arranged at the lower end of the outer frame.

[0006] Preferably, one end of the first feed port protrudes from the outer wall of the outer frame and leaks out, and the other end of the first feed port passes through the filter drum. The distance between the filter drum and the outer frame is greater than cm, and a valve is provided on the first feed port.

[0007] Preferably, the upper end of the filter drum is cylindrical and the lower end is funnel-shaped. The second discharge port is arranged at the center of the bottom of the filter drum. A valve is also arranged on the second discharge port. The outer edge of the hollow turntable is about mm away from the inner wall of the filter drum.

[0008] Preferably, the third discharge port is obliquely arranged at the bottom side of the outer frame, the bottom of the outer frame is inclined downward to guide the sample particles to flow to the third discharge port, and a support frame is connected to the outside of the outer frame.

[0009] Preferably, the outer frame consists of an upper cover and a lower frame body, a threaded groove is provided on the inner wall of the upper cover, a threaded groove is provided on the outer wall of the upper end of the lower frame body, the upper cover is threadedly engaged with the upper end of the lower frame body, and the sum of the wall thickness of the upper cover and the upper end wall thickness of the lower frame body is equal to the wall thickness of the lower end of the lower frame body.

[0010] Preferably, the laser particle size analyzer is provided with a second feed port, a signal light and a first switch button are provided below the second feed port, a feeder is provided on the dry dispersion sampling system, one end of the feeder is connected to the fourth outlet, the other end of the feeder is connected to the second outlet through an air pipe, and the second feed port and the fourth outlet are connected through a material pipe.

[0011] Preferably, a feeding funnel is connected to the upper end of the feeder, a vibrating feeding trough is arranged above the feeding funnel, the vibrating feeding trough is arranged on the top of the dry method sample separation and injection system, and a storage funnel is arranged above the vibrating feeding trough.

[0012] Preferably, the dry dispersion sampling system is also provided with a second switch button and an air inlet, the air inlet is arranged below the second switch button, the air inlet is connected to the filter through an air pipe, and the filter is connected to the air compressor through the air pipe.

[0013] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:

[0014] The utility model discloses a laser particle size distribution instrument which is convenient for sample recovery. The filter recovery sample device is set up to utilize the centrifugal force principle and dust adsorption filter cloth, dust filter net and hollow turntable to filter, separate and recover sample particles. The utility model has a simple structure and can be movably installed and disassembled, which is convenient and also saves recovery cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural diagram of the laser particle size analyzer and dry dispersion sampling system of the utility model;

[0016] Figure 2 This is a structural diagram of the filtering and recovering sample device of the utility model;

[0017] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0018] Figure 4 This is a top view of the internal structure of the filtering and recovering sample device of the utility model.

[0019] In the figure: 1. laser particle size analyzer; 11. second feed port; 12. signal light; 13. first switch button; 2. dry dispersion sampling system; 21. feeder; 22. fourth discharge port; 23. feed funnel; 24. vibrating feed trough; 25. storage funnel; 26. second switch button; 27. air inlet; 3. filtering and recovering sample device; 31. first feed port; 32. filter drum; 321. dust adsorption filter cloth; 322. dust filter; 33. rotating shaft; 34. outer frame; 341. upper cover; 342. lower frame; 35. hollow turntable; 351. leakage hole; 36. second discharge port; 37. first air outlet; 38. third discharge port; 4. material pipe; 5. support frame. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0022] Combination Figure 1 and Figure 2 The utility model is a laser particle size distribution instrument for facilitating sample recovery, comprising a laser particle size analyzer 1, a dry dispersion sample introduction system 2, an air compressor, a filter and a filter recovery sample device 3. The dry dispersion sample introduction system 2 is arranged on the right side of the laser particle size analyzer 1. The dry dispersion sample introduction system 2 and the laser particle size analyzer 1 are connected through a material pipe 4. The air compressor is connected to the filter through an air pipe. The filter is connected to the dry dispersion sample introduction system 2 through an air pipe. A first discharge port is arranged on the back of the laser particle size analyzer 1. A first feed port 31 is arranged on the upper side of the filter recovery sample device 3. The first discharge port and the first feed port 31 can be connected through a pipe or directly threadedly engaged. The filter recovery sample device 3 is provided with a filter. The filter drum 32 is fully wrapped with a dust adsorbing filter cloth 321 and a dust filter 322 for filtering and adsorbing dust. The filter drum 32 is connected to a motor through a rotating shaft 33. The motor is arranged at the top of an outer frame 34 of the filtering and recovering sample device 3. The rotating shaft 33 is arranged in the filter drum 32. The rotating shaft 33 is sequentially spaced a certain distance from top to bottom with three hollow turntables 35. The hollow turntable 35 is provided with several leakage holes 351 for sample particles to pass through. A second discharge port 36 is arranged at the bottom of the filter drum 32, a first air outlet 37 is arranged at the top of the outer frame 34 for discharging filtered air, and a third discharge port 38 is arranged at the lower end of the outer frame 34 for the filtered sample particles to flow out and be recovered.

[0023] Combination Figure 2 and Figure 4 One end of the first feed port 31 is provided with a threaded groove and protrudes from the outer wall of the outer frame 34 and leaks out. The other end of the first feed port 31 passes through the filter drum 32. A certain gap is left between the filter drum 32 and the outer frame 34 for the filtered air to be discharged upward. A valve is provided on the first feed port 31 to control the start and stop of the feed.

[0024] The upper end of the filter drum 32 is cylindrical, and the lower end is funnel-shaped to facilitate the rapid and sufficient outflow of the filtered sample particles. The second discharge port 36 is arranged at the bottom center of the filter drum 32. A valve is also arranged on the second discharge port 36 to control the start and stop of the discharge. The outer edge of the hollow turntable 35 is about 1 mm away from the inner wall of the filter drum 32. When the hollow turntable 35 rotates quickly, it will not cause friction damage.

[0025] The third discharge port 38 is tilted at a certain angle and arranged at the bottom side of the outer frame 34 , which is more conducive to rapid discharge. The bottom of the outer frame 34 is tilted downward at a certain angle to guide the sample particles to flow to the third discharge port 38 . The outer frame 34 is connected to a support frame 5 .

[0026] Combination Figure 2 and Figure 3 The outer frame 34 is composed of an upper cover 341 and a lower frame body 342. A threaded groove is provided on the inner wall of the upper cover 341. The lower frame body 342 is "L"-shaped, thin at the upper end and thick at the lower end. A threaded groove is provided on the outer wall of the upper end of the lower frame body 342. The upper cover 341 is threadedly engaged with the upper end of the lower frame body 342. The sum of the wall thickness of the upper cover 341 and the upper end wall thickness of the lower frame body 342 is equal to the lower end wall thickness of the lower frame body 342, and the cover is more tightly fitted.

[0027] Combination Figure 1 A second feed port 11 is arranged on the front of the laser particle size analyzer 1, and a signal light 12 and a first switch button 13 are arranged below the second feed port 11 to control start and stop. A feeder 21 is arranged at the lower end of the front of the dry dispersion sampling system 2, and one end of the feeder 21 is connected to the fourth discharge port 22, and the other end of the feeder 21 is connected to the second air outlet through an air pipe. The second air outlet is arranged at the lower end of the front of the dry dispersion sampling system 2, and the second feed port 11 and the fourth discharge port 22 are connected through a material pipe 4.

[0028] A feeding funnel 23 is connected to the upper end of the feeder 21, and a vibrating feeding trough 24 is arranged above the feeding funnel 23. The vibrating feeding trough 24 can vibrate to control the feeding amount. The vibrating feeding trough 24 is arranged on the top of the dry dispersion sampling system 2, and a storage funnel 25 is arranged above the vibrating feeding trough 24. The dry dispersion sampling system 2 is also provided with a second switch button 26 and an air inlet 27. The air inlet 27 is arranged below the second switch button 26. The air inlet 27 is connected to the filter through an air pipe, and the filter is connected to the air compressor through the air pipe.

[0029] Working principle: Turn on the power, put the sample raw material into the storage funnel 25, vibrate the material out of the vibrating feeding trough 24 and flow it into the feeding funnel 23, and the air source filtered by the filter passes through the feeder 21 and feeds the sample raw material through the feed pipe 4 into the laser particle size analyzer 1 for particle size analysis and measurement;

[0030] After the particle size analysis is completed, the sample raw material and the dust flow out through the first discharge port on the laser particle size analyzer 1, enter the filter drum 32 through the first feed port 31, and fall onto the first hollow turntable 35. The rotating shaft 33 is driven by a motor to rotate rapidly, driving the hollow turntable 35 to rotate rapidly. Under the influence of centrifugal force, the sample raw material and the dust rotate upward together, and the dust is adsorbed and filtered by the dust adsorption filter cloth 321 and the dust filter net 322. The sample particles flow downward through the leakage hole 351. Similarly, the sample particles are filtered by the three hollow turntables 35 and then flow to the second discharge port 36, and then flow out through the third discharge port 38 for recovery, and the filtered air is discharged through the first air outlet 37.

[0031] In summary, the utility model is a laser particle size distribution analyzer that is convenient for sample recovery. The filtering and sample recovery device 3 is provided to utilize the centrifugal force principle and the dust adsorption filter cloth 321, the dust filter 322 and the hollow turntable 35 to filter, separate and recover sample particles. The utility model has a simple structure and can be movably installed and disassembled, which is convenient and also saves recovery costs.

[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser particle size distribution analyzer for easy sample recovery, comprising a laser particle size analyzer (1), a dry dispersion sample introduction system (2), an air compressor, a filter and a filtering and sample recovery device (3), characterized in that: The dry dispersion sample introduction system (2) is arranged on the side of the laser particle size analyzer (1); the dry dispersion sample introduction system (2) and the laser particle size analyzer (1) are connected via a material pipe (4); the air compressor, the filter and the dry dispersion sample introduction system (2) are connected via an air pipe; the laser particle size analyzer (1) is provided with a first discharge port; the filtering and recovering sample device (3) is provided with a first feed port (31); the first discharge port is connected to the first feed port (31); a filtering drum (32) is provided in the filtering and recovering sample device (3); a dust adsorption filter cloth (321) and a dust collecting filter cloth (321) are provided on the filtering drum (32); A filter screen (322), a filter drum (32) connected to a motor via a rotating shaft (33), the motor being arranged at the top of an outer frame (34) of the filtering and recovering sample device (3), the rotating shaft (33) being arranged in the filter drum (32), three hollow rotating disks (35) being sleeved on the rotating shaft (33) in sequence from top to bottom, a plurality of leakage holes (351) being provided on the hollow rotating disks (35) for sample particles to pass through, a second discharge port (36) being provided at the bottom of the filter drum (32), a first air outlet (37) being provided at the top of the outer frame (34), and a third discharge port (38) being provided at the lower end of the outer frame (34).

2. A laser particle size distribution analyzer for facilitating sample recovery according to claim 1, characterized in that: One end of the first feed port (31) protrudes from the outer wall of the outer frame (34) and leaks out, and the other end of the first feed port (31) passes through the filter drum (32). The distance between the filter drum (32) and the outer frame (34) is greater than 1 cm. A valve is provided on the first feed port (31).

3. A laser particle size distribution analyzer for facilitating sample recovery according to claim 1, characterized in that: The filter drum (32) has a cylindrical upper end and a funnel-shaped lower end. The second discharge port (36) is arranged at the center of the bottom of the filter drum (32). A valve is also arranged on the second discharge port (36). The outer edge of the hollow turntable (35) and the inner wall of the filter drum (32) are spaced about 1 mm apart.

4. The laser particle size distribution analyzer for facilitating sample recovery according to claim 1, characterized in that: The third discharge port (38) is obliquely arranged at the bottom side of the outer frame (34); the bottom of the outer frame (34) is inclined downward to guide the sample particles to flow toward the third discharge port (38); and the outer frame (34) is externally connected to a support frame (5).

5. The laser particle size distribution analyzer for facilitating sample recovery according to claim 1, characterized in that: The outer frame (34) is composed of an upper cover (341) and a lower frame body (342). A threaded groove is provided on the inner wall of the upper cover (341), and a threaded groove is provided on the outer wall of the upper end of the lower frame body (342). The upper cover (341) and the upper end of the lower frame body (342) are threadedly engaged. The sum of the wall thickness of the upper cover (341) and the wall thickness of the upper end of the frame body (342) is equal to the wall thickness of the lower end of the lower frame body (342).

6. The laser particle size distribution analyzer for facilitating sample recovery according to claim 1, characterized in that: The laser particle size analyzer (1) is provided with a second feed port (11), a signal light (12) and a first switch button (13) are provided below the second feed port (11), a feeder (21) is provided on the dry dispersion sampling system (2), one end of the feeder (21) is connected to a fourth discharge port (22), the other end of the feeder (21) is connected to the second discharge port via an air pipe, and the second feed port (11) and the fourth discharge port (22) are connected via a material pipe (4).

7. A laser particle size distribution analyzer for facilitating sample recovery according to claim 6, characterized in that: The upper end of the feeder (21) is connected to a feeding funnel (23), a vibrating feeding trough (24) is arranged above the feeding funnel (23), the vibrating feeding trough (24) is arranged on the top of the dry dispersion sampling system (2), and a storage funnel (25) is arranged above the vibrating feeding trough (24).

8. The laser particle size distribution analyzer for facilitating sample recovery according to claim 1, characterized in that: The dry dispersion sampling system (2) is also provided with a second switch button (26) and an air inlet (27). The air inlet (27) is provided below the second switch button (26). The air inlet (27) is connected to the filter via an air pipe, and the filter is connected to the air compressor via the air pipe.

Images