Screening device for heavy calcium carbonate processing

Abstract

The utility model discloses a screening device for heavy calcium carbonate processing, which belongs to the technical field of heavy calcium carbonate processing and comprises a screening box, the inner wall of the screening box is connected with a plurality of inclined screening frames, and the top ends of the screening frames are connected with screening nets for screening heavy calcium carbonate; the lower inclined through pipe communicates with the side face of the lower half portion of the screening box, the top end of the lower inclined through pipe communicates with a straight-through pipe, a filtering ring and a draught fan used for ventilation are arranged in an inner cavity of the straight-through pipe, and the inner wall of the filtering ring is connected with an elastic filtering net; the rotating motor is installed on the periphery of the straight-through pipe through a motor base, an output shaft of the rotating motor penetrates through the straight-through pipe and is connected with a rotating rod, and the periphery of the rotating rod is connected with a plurality of eccentric wheels used for exciting the filter screen and a plurality of cleaning brushes used for cleaning the filter screen; the upper inclined through pipe is communicated with the straight through pipe, and the upper inclined through pipe is communicated with a treatment ball. The screening device for heavy calcium carbonate processing not only can treat dust, but also can keep smoothness.

Description

Technical Field

[0001] The utility model belongs to the technical field of heavy calcium carbonate processing, in particular to a screening device for heavy calcium carbonate processing. Background Technique

[0002] Heavy calcium carbonate, abbreviated as heavy calcium, is ground from natural carbonate minerals such as calcite, marble, and limestone. A screening device is required in the processing of heavy calcium carbonate powder. The multi-layer screening device for heavy calcium carbonate powder is used to screen heavy calcium carbonate and select heavy calcium carbonate of appropriate size. However, since heavy calcium carbonate is in powder form, during screening, the dust of heavy calcium carbonate is easily carried out by air flow, which not only causes waste of resources, but also affects the staff and the working environment.

[0003] After retrieval, a multi-layer screening device for anti-stagnant heavy calcium carbonate powder in a Chinese patent document (authorized announcement number CN213050914U) includes a device body. A driving motor is arranged at the top of the device body. The output shaft of the driving motor extends into the device body and is fixedly connected with a rotating rod. A fixing column is fixedly connected to the outer surface of the rotating rod. A sliding column is rotatably connected to the outer surface of the rotating rod and above the fixing column. The utility model uses a rotating centrifugal spherical screen and a vibrating inclined screening device to perform multi-stage screening on heavy calcium carbonate powder, avoiding the blockage and stagnation of powder materials on the screen and affecting the screening efficiency of heavy calcium carbonate powder. Although good screening can be carried out, during screening, the dust of heavy calcium carbonate is easily carried out by air flow, which not only causes waste of resources, but also affects the staff and the working environment. Content of the Utility Model

[0004] The purpose of the utility model is to provide a screening device for heavy calcium carbonate processing to solve the problems raised in the background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A screening device for heavy calcium carbonate processing, including:

[0006] A screening box, with a plurality of inclined screening frames connected to the inner wall of the screening box. The top of the screening frame is connected with a screening net for screening heavy calcium carbonate;

[0007] A downward inclined through pipe, communicated with the side surface of the lower half of the screening box. The top of the downward inclined through pipe is communicated with a straight through pipe. A filter ring and a blower for ventilation are arranged in the inner cavity of the straight through pipe. An elastic filter net is connected to the inner wall of the filter ring;

[0008] A rotating motor, installed on the outer periphery of the straight through pipe through a motor base. The output shaft of the rotating motor penetrates the straight through pipe and is connected with a rotating rod. A plurality of eccentric wheels for exciting the filter net and a cleaning brush for cleaning the filter net are connected to the outer periphery of the rotating rod;

[0009] The upper inclined through pipe is connected to the straight through pipe, and the upper inclined through pipe is connected with a processing ball. The top of the screening box is connected with a feeding box, and the feeding box is connected with the processing ball through a vent pipe with a valve.

[0010] As a preferred embodiment, a dust removal filter bag corresponding to the position of the upper inclined through pipe is detachably connected to the inner wall of the processing ball, and an air outlet pipe with a valve is connected to the outer periphery of the processing ball.

[0011] As a preferred embodiment, a maintenance door with a perspective window embedded therein is rotatably connected to the side of the processing ball, and the maintenance door is fixedly connected to the processing ball through a lock catch.

[0012] As a preferred embodiment, a feeding plate is rotatably connected to the top of the feeding box, and the feeding plate is fixedly connected to the feeding box through a lock catch.

[0013] As a preferred embodiment, a discharge channel for discharging the filtered heavy calcium carbonate is provided on the side of the screening box, and an inclined material collecting hopper corresponding to the position of the discharge channel is installed on the side of the screening box.

[0014] As a preferred embodiment, discharge pipes with valves are connected to both the side of the inclined material collecting hopper and the bottom of the screening box.

[0015] As a preferred embodiment, vibrators are installed on the outer peripheries of both the lower inclined through pipe and the straight through pipe.

[0016] Compared with the prior art, the technical effects and advantages of the present utility model are as follows:

[0017] For the screening device for processing heavy calcium carbonate, the blower sucks air, creating a negative pressure inside the screening box, reducing the possibility of heavy calcium carbonate flowing out of the screening box with the air. The filter screen of the filter ring can filter the air, and the dust removal filter bag can perform secondary filtering to prevent dust from flowing out. During this process, the rotating motor drives the rotating rod to rotate, and the rotation of the eccentric wheel strikes the filter screen to prevent the filter screen from being blocked. The cleaning brush can clean the filter screen to ensure the smoothness of the local filter screen;

[0018] For the screening device for processing heavy calcium carbonate, the design of the lower inclined through pipe and the straight through pipe enables the falling dust to fall into the screening box by gravity, ensuring the integrated processing of heavy calcium carbonate. The vibration of the vibrator can vibrate the lower inclined through pipe and the straight through pipe, improving the thoroughness of the dust falling;

[0019] For the screening device for processing heavy calcium carbonate, the air outlet pipe of the processing ball can discharge air. When the feeding plate is closed to make the screening box a sealed space, the vent pipe is ventilated, causing the vent pipe to blow air into the feeding box, improving the feeding speed and the filtering speed;

[0020] The screening device for processing heavy calcium carbonate can not only handle dust but also keep unobstructed. Brief Description of the Drawings

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of the present invention;

[0023] Figure 2 It is the front view of the screening box of the present invention after removing the inspection plate;

[0024] Figure 3 It is a partial cross-sectional view of the straight pipe and the rotary motor of the present invention;

[0025] Figure 4 For the present invention Figure 1 It is the schematic structural diagram of the processing ball in it.

[0026] Description of the Reference Numerals in the Drawings:

[0027] In the figure:

[0028] 1. Screening box; 2. Screening frame; 4. Lower inclined pipe; 5. Straight pipe; 6. Filter ring; 7. Fan; 8. Filter net; 9. Rotary motor; 10. Rotating rod; 11. Eccentric wheel; 12. Cleaning brush; 13. Upper inclined pipe; 14. Processing ball; 15. Feed box; 16. Vent pipe; 17. Dust removal filter bag; 18. Air outlet pipe; 19. Inspection door; 20. Feed plate; 21. Inclined material collecting hopper; 22. Discharge pipe; 23. Vibrator. Detailed Embodiments

[0029] In the following description, a large number of specific details are given to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some well-known technical features in the art are not described.

[0030] Unless otherwise defined, the up, down, left, right, front, back, inner and outer directions involved in this article are based on the up, down, left, right, front, back, inner and outer directions in the drawings shown in the present invention, and are hereby explained together.

[0031] The connection method can adopt existing methods such as bonding, welding, bolt connection, etc., subject to actual needs.

[0032] Please refer to Figures 1 to 4 As shown, a screening device for heavy calcium carbonate processing, this embodiment includes:

[0033] A screening box 1, the inner wall of the screening box 1 is connected with a plurality of inclined screening frames 2, the top of the screening frame 2 is connected with a screening net for screening heavy calcium carbonate, the mesh numbers of the plurality of screening nets are different, the inner wall of the screening box 1 is connected with a baffle plate, the bottom end of the screening box 1 is connected with a plurality of support legs, and the side of the screening box 1 is rotatably connected with a maintenance plate;

[0034] A lower inclined through pipe 4, which is communicated with the side of the lower half of the screening box 1, the top end of the lower inclined through pipe 4 is communicated with a straight through pipe 5, vibration exciters 23 are installed on the outer peripheries of the lower inclined through pipe 4 and the straight through pipe 5, and the vibration excitation work of the vibration exciters 23 can vibrate the lower inclined through pipe 4 and the straight through pipe 5 to improve the thoroughness of the dust falling. A filter ring 6 and a blower 7 for ventilation are arranged in the inner cavity of the straight through pipe 5. The inner wall of the filter ring 6 is connected with an elastic filter net 8. The blower 7 sucks air, so that a negative pressure is formed in the screening box 1, reducing the possibility of heavy calcium carbonate flowing out of the screening box 1 with the air flow. The filter net 7 of the filter ring 6 can filter the air, and the filtration of the dust removal filter bag 17 can perform secondary filtration to prevent dust from flowing out;

[0035] A rotating motor 9 is installed on the outer periphery of the straight through pipe 5 through a motor base. The output shaft of the rotating motor 9 penetrates through the straight through pipe 5 and is connected with a rotating rod 10. A plurality of eccentric wheels 11 for exciting the filter net 8 and a cleaning brush 12 for cleaning the filter net 8 are connected to the outer periphery of the rotating rod 10. The rotating motor 9 drives the rotating rod 10 to rotate, and the rotation of the eccentric wheels 11 hits the filter net 8 to prevent the filter net 8 from being blocked. The cleaning brush 12 can clean the filter net 8 to ensure the smoothness of the local filter net 8;

[0036] An upper inclined through pipe 13 is communicated with the straight through pipe 5, the upper inclined through pipe 13 is communicated with a treatment ball 14, the top end of the screening box 1 is communicated with a feed box 15, the feed box 15 is communicated with the treatment ball 14 through a ventilation pipe 16 with a valve, the inner wall of the treatment ball 14 is detachably connected with a dust removal filter bag 17 corresponding to the position of the upper inclined through pipe 13, and the outer periphery of the treatment ball 14 is communicated with an air outlet pipe 18 with a valve. When the feed plate is closed to make the screening box 1 a sealed space, the ventilation pipe 16 ventilates, so that the ventilation pipe 16 blows air into the feed box 15 to improve the feeding speed and the filtering speed.

[0037] A maintenance door 19 with a perspective window embedded therein is rotatably connected to the side of the treatment ball 14, and the maintenance door 19 is fixedly connected to the treatment ball 14 through a lock.

[0038] To meet the usage requirements, a feed plate 20 is rotatably connected to the top of the feed box 15. The feed plate 20 is fixedly connected to the feed box 15 through a latch. An outlet channel for discharging the filtered heavy calcium carbonate is provided on the side of the screening box 1. An inclined material collecting hopper 21 corresponding to the position of the outlet channel is installed on the side of the screening box 1. Discharge pipes 22 with valves are connected to both the side of the inclined material collecting hopper 21 and the bottom end of the screening box 1. Open the feed plate 20, and use machinery to introduce the heavy calcium carbonate to be screened into the feed box 15. The heavy calcium carbonate falls onto the filter screen and moves downward under the action of gravity. During the downward movement, the heavy calcium carbonate with small particle size falls. After being blocked by the blocking plate, it is filtered by another filter screen. The heavy calcium carbonate on both sides passes through the inclined material collecting hopper 21 and discharges from the discharge pipe 22.

[0039] The fan 7, the rotating motor 9 and the vibrator 23 are all conventional instruments. Their working principles, sizes and models are not related to the problems solved by this application, so no more description will be made. The control mode of the present utility model is controlled by a controller. The control circuit of the controller can be realized by simple programming by those skilled in the art. The provision of power also belongs to the common knowledge in this field. And the present utility model is mainly used to protect mechanical devices, so the control mode and circuit connection of the present utility model will not be explained in detail.

[0040] Working principle

[0041] For the screening device for processing heavy calcium carbonate, first turn on the fan 7, the rotating motor 9 and the vibrator 23, open the feed plate 20, and use machinery to introduce the heavy calcium carbonate to be screened into the feed box 15. The heavy calcium carbonate falls onto the filter screen and moves downward under the action of gravity. During the downward movement, the heavy calcium carbonate with small particle size falls. After being blocked by the blocking plate, it is filtered by another filter screen. The heavy calcium carbonate on both sides passes through the inclined material collecting hopper 21 and discharges from the discharge pipe 22;

[0042] During the whole process, the fan 7 sucks air, making a negative pressure formed inside the screening box 1, reducing the possibility of the heavy calcium carbonate flowing out of the screening box 1 with the air flow. The filter screen 7 of the filter ring 6 can filter the air, and the filtration of the dust removal filter bag 17 can perform secondary filtration to avoid the dust from flowing out. The rotating motor 9 drives the rotating rod 10 to rotate, and the rotation of the eccentric wheel 11 strikes the filter screen 8 to prevent the filter screen 8 from being blocked. The cleaning brush 12 can clean the filter screen 8 to ensure the smoothness of the local filter screen 8. The vibration work of the vibrator 23 can vibrate the lower inclined pipe 4 and the straight pipe 5 to improve the thoroughness of the dust falling.

[0043] It should be noted that, in this article, relational terms such as "one" and "two" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

[0044] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A screening device for heavy calcium carbonate processing, characterized in that, Including: A screening box (1), the inner wall of the screening box (1) is connected with a plurality of inclined screening frames (2), the top of the screening frame (2) is connected with a screening net for screening heavy calcium carbonate; A downward inclined through pipe (4), which is communicated with the side of the lower half of the screening box (1), the top of the downward inclined through pipe (4) is communicated with a straight through pipe (5), a filtering ring (6) and a blower (7) for ventilation are arranged in the inner cavity of the straight through pipe (5), and an elastic filter screen (8) is connected to the inner wall of the filtering ring (6); A rotating motor (9), which is installed on the outer periphery of the straight through pipe (5) through a motor base, the output shaft of the rotating motor (9) penetrates through the straight through pipe (5) and is connected with a rotating rod (10), and a plurality of eccentric wheels (11) for exciting the filter screen (8) and a cleaning brush (12) for cleaning the filter screen (8) are connected to the outer periphery of the rotating rod (10); An upward inclined through pipe (13), which is communicated with the straight through pipe (5), the upward inclined through pipe (13) is communicated with a treatment ball (14), the top of the screening box (1) is communicated with a feed box (15), and the feed box (15) is communicated with the treatment ball (14) through a vent pipe (16) with a valve; 2. The screening device for heavy calcium carbonate processing according to claim 1, wherein, A dust removal filter bag (17) corresponding to the position of the upward inclined through pipe (13) is detachably connected to the inner wall of the treatment ball (14), and an air outlet pipe (18) with a valve is communicated with the outer periphery of the treatment ball (14); 3. The screening device for heavy calcium carbonate processing according to claim 2, wherein, A maintenance door (19) with a perspective window embedded therein is rotatably connected to the side of the treatment ball (14), and the maintenance door (19) is fixedly connected to the treatment ball (14) through a buckle; 4. A screening device for heavy calcium carbonate processing according to claim 3, wherein, A feed plate (20) is rotatably connected to the top of the feed box (15), and the feed plate (20) is fixedly connected to the feed box (15) through a buckle; 5. A screening device for heavy calcium carbonate processing according to claim 1, characterized in that, An outlet channel for discharging the filtered heavy calcium carbonate is arranged on the side of the screening box (1), and an inclined material collecting hopper (21) corresponding to the position of the outlet channel is installed on the side of the screening box (1); 6. The screening device for processing heavy calcium carbonate according to claim 5, wherein, Valve-equipped discharge pipes (22) are communicated with the side of the inclined material collecting hopper (21) and the bottom of the screening box (1); 7. A screening device for heavy calcium carbonate processing according to claim 1, characterized in that, Vibrators (23) are installed on the outer peripheries of the downward inclined through pipe (4) and the straight through pipe (5).

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