A kind of automatic feeding device of limestone powder

Abstract

The present invention relates to the field of negative pressure feeding technology, and in particular to an automatic feeding device for limestone powder. The technical problem to be solved by the present invention is that different powder particle sizes will lead to a large difference in suspension velocity gradient, which may cause pipeline blockage in severe cases. The technical implementation scheme of the present invention is as follows: it includes a first feeding pipe, and also includes a first separation mechanism arranged in the first feeding pipe, the first separation mechanism includes a second feeding pipe, the second feeding pipe is fixedly connected to the middle of the first feeding pipe in a through-type manner, and a plurality of evenly distributed fan-shaped blocks are fixedly connected to the first feeding pipe. The present invention can make the first fan-shaped filter plate and the second fan-shaped filter plate swing up and down alternately through the design of the first fan-shaped filter plate, so that particles with different particle sizes in the limestone powder are separated, and effectively prevent blockage caused by excessive suspension velocity gradient of the limestone powder.

Description

Technical Field

[0001] The invention relates to the technical field of negative pressure feeding, in particular to an automatic limestone powder feeding device. Background Art

[0002] Limestone powder is generally fed by negative pressure. When the limestone powder is crushed, the powder particle size cannot be accurately controlled, resulting in different particle sizes of the limestone powder. When the limestone powder enters the feeding pipeline, the different powder particle sizes will cause a large difference in the suspension velocity gradient, which may cause pipeline blockage in severe cases. Summary of the invention

[0003] In order to overcome the disadvantage that different powder particle sizes may lead to large differences in suspension velocity gradients, which may cause pipeline blockage in severe cases, the present invention provides an automatic limestone powder feeding device.

[0004] The technical implementation scheme of the present invention is: an automatic feeding device for limestone powder, comprising a first feeding pipe, and also comprising a first separation mechanism arranged in the first feeding pipe, the first separation mechanism comprising a second feeding pipe, the second feeding pipe being fixedly connected through the middle of the first feeding pipe, a plurality of evenly distributed fan-shaped blocks being fixedly connected in the first feeding pipe, a plurality of evenly distributed first fan-shaped filter plates and second fan-shaped filter plates being hinged between the plurality of the fan-shaped blocks, a plurality of the first fan-shaped filter plates and the second fan-shaped filter plates being used in conjunction with a plurality of the fan-shaped blocks, a floating mechanism for making a plurality of the first fan-shaped filter plates and the second fan-shaped filter plates movable being arranged in the first feeding pipe, and a second separation mechanism for separating powders of different particle sizes being arranged in the second feeding pipe.

[0005] More preferably, the floating mechanism includes a first rotating shaft, the second feeding pipe is rotatably connected with the first rotating shaft, the upper part of the first rotating shaft is fixedly connected to a first fan, the lower part of the first rotating shaft is fixedly connected to a first magnetic ring, the first magnetic ring is slidably connected to the inner wall of the second feeding pipe, the outer wall of the second feeding pipe is rotatably connected to a first guide ring, the inner wall of the first guide ring is provided with a first magnet attracted to the first magnetic ring, the outer wall of the first guide ring is sleeved with a first sleeve, the first guide ring is provided with a first wave groove, the inner wall of the first sleeve is fixedly connected with a plurality of evenly distributed first protrusions, the plurality of first protrusions are used in conjunction with the first wave groove, the outer wall of the first sleeve is hinged with a plurality of evenly distributed first connecting rods, the plurality of first connecting rods are arranged one-to-one with the plurality of first fan-shaped filter plates, and one end of the plurality of first connecting rods is respectively hinged to the plurality of first fan-shaped filter plates.

[0006] More preferably, the floating mechanism also includes a second magnetic ring, the second magnetic ring is fixedly connected to the bottom of the outer wall of the first rotating shaft, the second magnetic ring is slidably connected to the inner wall of the second feeding pipe, the outer wall of the second feeding pipe is rotatably connected to the second guide ring, the inner wall of the second guide ring is provided with a second magnet attracted to the second magnetic ring, the outer wall of the second guide ring is sleeved with a second sleeve, the second guide ring is provided with a second wave groove, a plurality of evenly distributed second protrusions are fixedly connected to the inner wall of the second sleeve, the plurality of second protrusions are used in conjunction with the second wave groove, a plurality of evenly distributed second connecting rods are hinged to the outer wall of the second sleeve, a plurality of second connecting rods are arranged one-to-one with a plurality of second fan-shaped filter plates, and one end of a plurality of second connecting rods is respectively hinged to a plurality of second fan-shaped filter plates.

[0007] More preferably, the floating mechanism also includes guide rails, and the guide rails are symmetrically fixed to both sides of the inner wall of the first feeding pipe, and one end of a sliding rod is slidably connected in the guide rails. The two sliding rods on the upper side are fixed to the top of the first sleeve, and the two sliding rods on the lower side are fixed to the top of the second sleeve.

[0008] More preferably, a material-blocking plate is further included, and the material-blocking plate is fixedly connected to the bottom of the inner wall of the second feeding pipe through two support rods, and the diameter of the material-blocking plate is larger than the bottom end diameter of the second feeding pipe.

[0009] More preferably, it further comprises a wind limiting plate, wherein the wind limiting plates are symmetrically fixedly connected in the first feeding pipe, and the two wind limiting plates are arranged at an inclination.

[0010] More preferably, the second separation mechanism includes a separation tube, one end of the second feeding tube is connected to the separation tube, a second rotating shaft is arranged in the separation tube, a plurality of evenly distributed separation plates are fixedly connected to the outer wall of the second rotating shaft, a plurality of the separation plates are mesh structures, and a rectangularly distributed sieve holes are provided at the bottom of the separation tube.

[0011] More preferably, the second separation mechanism further includes a baffle, the baffle is fixedly connected in the separation tube, the second rotating shaft is rotatably connected to the baffle in a through-type manner, and a fan-shaped groove is through-typed on the baffle.

[0012] More preferably, it also includes a third rotating shaft, the third rotating shaft is rotatably connected in the separation tube, one end of the second rotating shaft is connected to a reduction gear box, the third rotating shaft is connected to the reduction gear box, a second fan is fixedly connected to the third rotating shaft, a conical cover is fixedly connected in the separation tube, and the third rotating shaft is rotatably connected to the conical cover in a through-type manner.

[0013] More preferably, a third feeding pipe is further included, one end of the separation tube is connected to the third feeding pipe, the third rotating shaft is connected to a transmission assembly, the third feeding pipe is rotatably connected with a reciprocating screw, the transmission assembly is connected to the reciprocating screw, an installation box is fixedly connected to the third feeding pipe, a baffle plate is slidably connected in the installation box, a rectangular groove for use with the baffle plate is penetrated through the third feeding pipe, and the baffle plate is threadedly connected to the reciprocating screw.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] 1. The present invention designs the first fan-shaped filter plate and the second fan-shaped filter plate. When the negative pressure system is started for feeding, the first fan rotates with the air flow in the first feeding pipe, so that the first fan-shaped filter plate and the second fan-shaped filter plate can be alternately swung up and down, and the limestone powder moves along the lower surfaces of the first fan-shaped filter plate and the second fan-shaped filter plate, so that particles with different particle sizes in the limestone powder are separated, and particles with smaller particle sizes are fed through the first feeding pipe, and particles with larger particle sizes separated enter the second feeding pipe and are further separated by the second separation mechanism, so that the limestone powder can quickly complete the separation of particles with different particle sizes during the feeding process, and particles with similar suspension speeds enter the first feeding pipe or the second feeding pipe respectively, effectively preventing blockage caused by excessive suspension speed gradient of the limestone powder.

[0016] 2. The present invention can make the negative pressure effect of the third feeding pipe slightly stronger than the negative pressure effect of the first feeding pipe through the design of the wind limiting plate. The design of the baffle plate can prevent limestone powder from directly entering the second feeding pipe, so that the second separation mechanism can maintain efficient operation.

[0017] 3. Through the design of the reciprocating screw and the baffle plate, the present invention can make the baffle plate move upward when the first fan-shaped filter plate or the second fan-shaped filter plate is in a downward swinging state. At this time, the inner cavities of the second feeding pipe, the separation pipe and the third feeding pipe are connected, so that the limestone powder can smoothly pass through the second feeding pipe into the separation pipe. When the first fan-shaped filter or the second fan-shaped filter plate is in a horizontal state, the baffle plate can move downward. At this time, the inner cavities of the second feeding pipe, the separation pipe and the third feeding pipe are disconnected, so that the limestone powder in the separation pipe is not affected by the airflow and flies away, thereby improving the separation efficiency of the separation plate for the limestone powder. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a structural schematic diagram of the first separation mechanism of the present invention;

[0020] Figure 3 It is a structural schematic diagram of the floating mechanism of the present invention;

[0021] Figure 4 This is a schematic diagram of the installation of the first sleeve of the present invention;

[0022] Figure 5 is a schematic diagram of the mechanism of the second separation mechanism of the present invention;

[0023] Figure 6 It is a schematic diagram of the installation at the second rotating shaft of the present invention;

[0024] Figure 7 It is a schematic diagram of the installation of the baffle of the present invention;

[0025] Figure 8 It is a schematic diagram of the installation of the baffle plate of the present invention.

[0026] The markings of the components in the accompanying drawings are as follows: 1. first feeding pipe, 201, second feeding pipe, 202, fan-shaped block, 203, first fan-shaped filter plate, 204, second fan-shaped filter plate, 301, first rotating shaft, 3011, first fan, 302, first magnetic ring, 303, first guide ring, 304, first sleeve, 3041, guide rail, 3042, slide rod, 305, first connecting rod, 401, second magnetic ring , 402, the second guide ring, 403, the second sleeve, 404, the second connecting rod, 501, the material blocking plate, 601, the wind limiting plate, 701, the separation tube, 702, the second rotating shaft, 703, the separation plate, 801, the baffle, 901, the third rotating shaft, 902, the second fan, 903, the conical cover, 1001, the third feeding tube, 1002, the reciprocating screw, 1003, the mounting box, 1004, the material blocking plate. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example 1

[0028] An automatic limestone powder feeding device, such as Figure 1-Figure 8As shown, it includes a first feeding pipe 1 and a first separation mechanism arranged in the first feeding pipe 1. The first separation mechanism is used for preliminarily separating particles of different particle sizes of limestone powder. The first separation mechanism includes a second feeding pipe 201. The second feeding pipe 201 is fixedly connected to the middle of the first feeding pipe 1 in a through-type manner. A plurality of evenly distributed fan-shaped stoppers 202 are fixedly connected to the first feeding pipe 1. The side walls of the plurality of fan-shaped stoppers 202 are made of elastic material. A plurality of evenly distributed first fan-shaped filter plates 203 and second fan-shaped filter plates 204 are hinged between the plurality of fan-shaped stoppers 202. The plurality of first fan-shaped filter plates 203 and the second fan-shaped filter plates 204 are respectively provided with four, and the plurality of first fan-shaped filter plates 203 and the second fan-shaped filter plates 204 are respectively provided with four. When the first fan-shaped filter plate 203 and the second fan-shaped filter plate 204 swing, the side wall of the fan-shaped block 202 is squeezed. Since the side wall of the fan-shaped block 202 is made of elastic material, the side wall of the fan-shaped block 202 can always fit with the side walls of the first fan-shaped filter plates 203 and the second fan-shaped filter plates 204. A floating mechanism for moving the first fan-shaped filter plates 203 and the second fan-shaped filter plates 204 is provided in the first feeding pipe 1. When the floating mechanism moves, the first fan-shaped filter plates 203 and the second fan-shaped filter plates 204 can swing. A second separation mechanism for separating powders of different particle sizes is provided in the second feeding pipe 201. The limestone powder that has completed the preliminary separation can be separated again by the second separation mechanism.

[0029] The floating mechanism includes a first rotating shaft 301, the second feeding tube 201 is rotatably connected with the first rotating shaft 301, the upper part of the first rotating shaft 301 is fixedly connected with a first fan 3011, the lower part of the first rotating shaft 301 is fixedly connected with a first magnetic ring 302, the first magnetic ring 302 is slidably connected to the inner wall of the second feeding tube 201, the outer wall of the second feeding tube 201 is rotatably connected with a first guide ring 303, the inner wall of the first guide ring 303 is provided with a first magnet attracted to the first magnetic ring 302, the outer wall of the first guide ring 303 is sleeved with a first sleeve 304, the first guide ring 303 is provided with a first wave groove, the inner wall of the first sleeve 304 is fixedly connected with a first magnetic ring 302, and the inner wall of the first guide ring 304 is fixedly connected with a first magnetic ring 302. There are several evenly distributed first protrusions, and several first protrusions are used in conjunction with the first wave groove. When the first guide ring 303 rotates, the several first protrusions are squeezed through the first wave groove thereon, so that the first sleeve 304 can move back and forth vertically. The outer wall of the first sleeve 304 is hinged with several evenly distributed first connecting rods 305, and the several first connecting rods 305 are arranged in a one-to-one correspondence with the several first fan-shaped filter plates 203, and one end of the several first connecting rods 305 is respectively hinged to the several first fan-shaped filter plates 203. When the first sleeve 304 moves, it can drive the several first fan-shaped filter plates 203 to swing back and forth through the several first connecting rods 305.

[0030] The floating mechanism also includes a second magnetic ring 401, the second magnetic ring 401 is fixedly connected to the bottom of the outer wall of the first rotating shaft 301, the second magnetic ring 401 is slidably connected to the inner wall of the second feeding tube 201, the outer wall of the second feeding tube 201 is rotatably connected to the second guide ring 402, the inner wall of the second guide ring 402 is provided with a second magnet attracted to the second magnetic ring 401, the outer wall of the second guide ring 402 is sleeved with a second sleeve 403, the second guide ring 402 is provided with a second wave groove, the trough of the first wave groove is relative to the crest of the second wave groove A plurality of evenly distributed second protrusions are fixedly connected to the inner wall of the second sleeve 403, and the plurality of second protrusions are used in conjunction with the second wave groove. A plurality of evenly distributed second connecting rods 404 are hingedly connected to the outer wall of the second sleeve 403. The plurality of second connecting rods 404 are arranged in a one-to-one correspondence with the plurality of second fan-shaped filter plates 204, and one end of the plurality of second connecting rods 404 is respectively hinged to the plurality of second fan-shaped filter plates 204. When the second sleeve 403 moves, the plurality of second connecting rods 404 can drive the plurality of second fan-shaped filter plates 204 to swing back and forth.

[0031] The floating mechanism also includes a guide rail 3041, and the guide rails 3041 are symmetrically fixed on both sides of the inner wall of the first feeding tube 1, and one end of a sliding rod 3042 is slidably connected in the guide rail 3041. The two sliding rods 3042 on the upper side are fixedly connected to the top of the first sleeve 304, and the two sliding rods 3042 on the lower side are fixedly connected to the top of the second sleeve 403. The moving trajectories of the first sleeve 304 and the second sleeve 403 can be limited by the guide rails 3041 and the sliding rod 3042.

[0032] It also includes a material blocking plate 501, which is fixedly connected to the bottom of the inner wall of the second feeding tube 201 through two support rods. The diameter of the material blocking plate 501 is larger than the bottom end diameter of the second feeding tube 201, and there is a gap between the material blocking plate 501 and the bottom end of the second feeding tube 201.

[0033] In the prior art, limestone powder is usually fed by negative pressure. However, due to the different particle sizes of limestone powder, the suspension velocity gradient is large, which may cause the feeding pipeline to be blocked in severe cases. The present invention can effectively solve the above problems, specifically:

[0034] The negative pressure system in the prior art is started, so that negative pressure is generated in the first feeding pipe 1 and the second feeding pipe 201. The first feeding pipe 1 performs negative pressure suction feeding on the limestone powder in the silo (the silo is a large container for storing limestone powder). At this time, the limestone powder enters the first feeding pipe 1 from bottom to top under the influence of negative pressure. The blocking plate 501 blocks the limestone powder to prevent the limestone powder from directly entering the second feeding pipe 201. The limestone powder moves to the lower surfaces of the first fan-shaped filter plates 203 and the second fan-shaped filter plates 204. At the same time, the first fan 3011 rotates under the influence of the airflow in the first feeding pipe 1. The first fan 3011 drives the first magnetic ring 302 and the second magnetic ring 401 to rotate through the first rotating shaft 301. Due to the first guide The first magnet on the ring 303 attracts the first magnetic ring 302, so that the first guide ring 303 rotates synchronously with the first magnetic ring 302. When the first guide ring 303 rotates, the first wave groove on the first guide ring 303 squeezes the first protrusions on the first sleeve 304, so that the first sleeve 304 moves vertically back and forth. The first sleeve 304 drives the corresponding two sliding rods 3042 to slide vertically back and forth in the adjacent guide rails 3041. At the same time, the second magnet on the second guide ring 402 attracts the second magnetic ring 401, so that the second guide ring 402 rotates synchronously with the second magnetic ring 401. When the second guide ring 402 rotates, the second wave groove of the second guide ring 402 squeezes the second protrusions on the second sleeve 403. The block is squeezed, thereby making the second sleeve 403 move back and forth vertically, and the second sleeve 403 drives the corresponding two sliding rods 3042 to slide back and forth vertically in the adjacent guide rails 3041. At this time, the first sleeve 304 and the second sleeve 403 move towards each other, and the first sleeve 304 and the second sleeve 403 respectively drive the first sector filter plates 203 and the second sector filter plates 204 to swing alternately through the first connecting rods 305 and the second connecting rods 404. The first sector filter plates 203 and the second sector filter plates 204 all swing back and forth with the connection of the sector block 202 as the center of the circle. When the first sector filter plates 203 or the second sector filter plates 204 swing upward, the limestone powder moves along the first sector filter plates 20 3 or the lower surface of the second fan-shaped filter plate 204 moves toward the inner wall of the first feeding pipe 1. During this process, most of the particles with smaller particle sizes in the limestone powder pass through the filter holes of the first fan-shaped filter plates 203 or the second fan-shaped filter plates 204 and continue to be fed through the first feeding pipe 1, while the particles with larger particle sizes in the limestone powder cannot pass through the filter holes of the first fan-shaped filter plates 203 or the second fan-shaped filter plates 204 and continue to stay on the lower surface of the first fan-shaped filter plates 203 or the second fan-shaped filter plates 204. When the first fan-shaped filter plates 203 or the second fan-shaped filter plates 204 swing downward, most of the particles with smaller particle sizes in the limestone powder continue to pass through the filter holes of the first fan-shaped filter plates 203 or the second fan-shaped filter plates 204.The particles with larger particle sizes mixed with a small amount of particles with smaller particle sizes move along the lower surface of the first sector filter plate 203 or the second sector filter plate 204 toward the second feeding pipe 201 and enter the interior thereof, and then are fed through the second feeding pipe 201, thereby completing the preliminary separation of large and small particles in the limestone powder, effectively preventing the pipeline from being blocked due to a large suspension velocity gradient, and being able to keep the feeding speed of the limestone powder uniform, preventing the feeding instability phenomenon. Example 2

[0035] It also includes a wind limiting plate 601 , which is symmetrically fixed inside the first feeding pipe 1 , and the two wind limiting plates 601 are arranged at an angle, and are used to limit the air flow velocity inside the first feeding pipe 1 .

[0036] The second separation mechanism includes a separation tube 701. The right end of the second feeding tube 201 is connected to the separation tube 701. A second rotating shaft 702 is arranged in the separation tube 701. A plurality of evenly distributed separation plates 703 are fixedly connected to the outer wall of the second rotating shaft 702. The plurality of separation plates 703 are inclined and are mesh structures. Rectangularly distributed sieve holes are provided at the bottom of the separation tube 701.

[0037] The second separation mechanism also includes a baffle 801, which is fixedly connected to the separation tube 701. The second rotating shaft 702 is rotatably connected to the baffle 801. The baffle 801 divides the inner cavity of the separation tube 701 into a left inner cavity and a right inner cavity. A fan-shaped groove is penetrated on the baffle 801, and the baffle 801 is used to block the limestone powder from entering the separation tube 701.

[0038] It also includes a third rotating shaft 901, which is rotatably connected in the separation tube 701, one end of the second rotating shaft 702 is connected to a reduction gear box, the third rotating shaft 901 is connected to the reduction gear box, the second fan 902 is fixedly connected to the third rotating shaft 901, a conical cover 903 is fixedly connected in the separation tube 701, the conical cover 903 is used to protect the second fan 902, and the third rotating shaft 901 is rotatably connected to the conical cover 903 in a through-type manner.

[0039] It also includes a third feeding pipe 1001, one end of the separation tube 701 is connected to the third feeding pipe 1001, the third rotating shaft 901 is connected to a transmission assembly, the transmission assembly consists of a first bevel gear and a second bevel gear, the first bevel gear is fixedly connected to one end of the third rotating shaft 901, the third feeding pipe 1001 is rotatably connected with a reciprocating screw 1002, the second bevel gear in the transmission assembly is fixedly connected to the bottom end of the reciprocating screw 1002, the third feeding pipe 1001 is fixedly connected with a mounting box 1003, a baffle plate 1004 is slidably connected in the mounting box 1003, a rectangular groove for use with the baffle plate 1004 is penetrated through the third feeding pipe 1001, and the baffle plate 1004 is threadedly connected to the reciprocating screw 1002.

[0040] While the first feeding pipe 1 is feeding through the negative pressure system, the third feeding pipe 1001 is feeding through the negative pressure system synchronously. At this time, the third feeding pipe 1001 performs negative pressure suction on the limestone powder in the second feeding pipe 201 through the separation pipe 701, and the second fan 902 rotates under the influence of the airflow in the separation pipe 701. The second fan 902 drives the first bevel gear in the transmission assembly to rotate through the third rotating shaft 901. The first bevel gear drives the reciprocating screw 1002 to rotate through the second bevel gear. The reciprocating screw 1002 drives the baffle plate 1004 to slide back and forth up and down. When the baffle plate 1004 moves upward, the air in the first feeding pipe 1 can be connected to the air of the third feeding pipe 1001 through the second feeding pipe 201 and the separation pipe 701. At this time, the first sector filter plate 203 or the second sector filter plate 204 is in a downward swinging state, so that the initially separated limestone powder can smoothly enter the lower half of the inner cavity of the separation tube 701. At this time, the baffle 801 blocks the limestone powder, thereby preventing the limestone powder from directly entering the third feeding pipe 1001, so that the limestone powder stays in the left inner cavity of the separation tube 701. At the same time, the third rotating shaft 901 drives the second rotating shaft 702 to rotate through the reduction gear box, and the second rotating shaft 702 drives several separation plates 703 to rotate. Several separation plates 703 stir the limestone powder entering the separation tube 701. In this process, particles with smaller particle sizes pass through the mesh holes of several separation plates 703 and fall back to the separation tube 701 through the sieve holes at the bottom of the separation tube 701. In the silo, when the baffle plate 1004 moves downward, the air in the first feeding pipe 1 is disconnected from the air in the third feeding pipe 1001, and at this time the first fan-shaped filter plate 203 or the second fan-shaped filter plate 204 moves to a horizontal state, thereby stopping the air flow in the second feeding pipe 201 and the separation pipe 701. At this time, the second fan 902 continues to drive the third rotating shaft 901 to rotate due to inertia, and then the second rotating shaft 702 continues to drive the plurality of separation plates 703 to rotate, preventing the air flow in the separation pipe 701 from causing the particles with smaller particle sizes to fly in the separation pipe 701, so that the particles with smaller particle sizes can smoothly pass through the mesh holes of the plurality of separation plates 703, and the particles with larger particle sizes can also be unaffected by the air flow, and the particles with larger particle sizes can The particles move stably along the surfaces of the plurality of separation plates 703. When the plurality of separation plates 703 drive the particles with larger particle sizes to move to the fan-shaped grooves of the baffle plate 801, the particles with larger particle sizes enter the right inner cavity of the separation tube 701 through the fan-shaped grooves. When the baffle plate 1004 moves upward again, the third feeding tube 1001 is connected with the inner cavity of the separation tube 701 again. At this time, the particles in the inner cavity on the right side of the separation tube 701 are affected by the negative pressure and enter the third feeding tube 1001 through the baffle plate 1004 to complete the feeding. In this process, the conical cover 903 protects the second fan 902 to prevent the particles from affecting the movement of the second fan 902. Then, the above steps are repeated to complete the automatic feeding of the limestone powder. The present invention can make the limestone powder be automatically fed when feeding.Directly separate the particles of different sizes in the limestone powder, effectively prevent the pipeline from being blocked due to excessive suspension velocity gradient during the limestone powder feeding process, and eliminate the need to screen the limestone powder through screening equipment.

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An automatic limestone powder feeding device, comprising a first feeding pipe (1), characterized in that: The invention also comprises a first separation mechanism arranged in the first feeding pipe (1), the first separation mechanism comprising a second feeding pipe (201), the second feeding pipe (201) being fixedly connected to the middle of the first feeding pipe (1) in a penetrating manner, a plurality of evenly distributed fan-shaped stoppers (202) being fixedly connected in the first feeding pipe (1), a plurality of evenly distributed first fan-shaped filter plates (203) and second fan-shaped filter plates (204) being hingedly connected between the plurality of the fan-shaped stoppers (202), the plurality of the first fan-shaped filter plates (203) and the second fan-shaped filter plates (204) being used in conjunction with the plurality of the fan-shaped stoppers (202), a floating mechanism for enabling the plurality of the first fan-shaped filter plates (203) and the second fan-shaped filter plates (204) to move being arranged in the first feeding pipe (1), and a second separation mechanism for separating powders of different particle sizes being arranged in the second feeding pipe (201); The floating mechanism comprises a first rotating shaft (301), the first rotating shaft (301) is rotatably connected to the second feeding pipe (201), a first fan (3011) is fixedly connected to the upper part of the first rotating shaft (301), a first magnetic ring (302) is fixedly connected to the lower part of the first rotating shaft (301), the first magnetic ring (302) is slidably connected to the inner wall of the second feeding pipe (201), a first guide ring (303) is rotatably connected to the outer wall of the second feeding pipe (201), the inner wall of the first guide ring (303) is provided with a first magnet attracted to the first magnetic ring (302), and the The outer wall of the first guide ring (303) is sleeved with a first sleeve (304), the first guide ring (303) is provided with a first wave groove, the inner wall of the first sleeve (304) is fixedly connected with a plurality of evenly distributed first protrusions, the plurality of first protrusions are used in conjunction with the first wave groove, the outer wall of the first sleeve (304) is hinged with a plurality of evenly distributed first connecting rods (305), the plurality of first connecting rods (305) are arranged in a one-to-one correspondence with the plurality of first sector-shaped filter plates (203), and one end of the plurality of first connecting rods (305) is respectively hinged with the plurality of first sector-shaped filter plates (203); The floating mechanism also includes a second magnetic ring (401), the second magnetic ring (401) is fixedly connected to the bottom of the outer wall of the first rotating shaft (301), the second magnetic ring (401) is slidably connected to the inner wall of the second feeding pipe (201), the outer wall of the second feeding pipe (201) is rotatably connected to a second guide ring (402), the inner wall of the second guide ring (402) is provided with a second magnet that attracts the second magnetic ring (401), the outer wall of the second guide ring (402) is sleeved with a second sleeve (403), The second guide ring (402) is provided with a second wave groove, the inner wall of the second sleeve (403) is fixedly connected with a plurality of evenly distributed second protrusions, the plurality of second protrusions are used in conjunction with the second wave groove, the outer wall of the second sleeve (403) is hinged with a plurality of evenly distributed second connecting rods (404), the plurality of second connecting rods (404) are arranged in a one-to-one correspondence with the plurality of second sector-shaped filter plates (204), and one end of the plurality of second connecting rods (404) is respectively hinged with the plurality of second sector-shaped filter plates (204); The floating mechanism also includes a guide rail (3041), and the guide rails (3041) are symmetrically fixed to both sides of the inner wall of the first feeding tube (1) in an upper and lower manner, and one end of a sliding rod (3042) is slidably connected inside the guide rail (3041), and the two sliding rods (3042) on the upper side are fixed to the top of the first sleeve (304), and the two sliding rods (3042) on the lower side are fixed to the top of the second sleeve (403); The second separation mechanism comprises a separation tube (701), one end of the second feeding tube (201) is connected to the separation tube (701), a second rotating shaft (702) is arranged inside the separation tube (701), a plurality of evenly distributed separation plates (703) are fixedly connected to the outer wall of the second rotating shaft (702), the plurality of separation plates (703) are mesh structures, and a bottom of the separation tube (701) is provided with sieve holes distributed in a rectangular shape; The second separation mechanism further comprises a baffle (801), the baffle (801) is fixedly connected inside the separation tube (701), the second rotating shaft (702) is rotatably connected to the baffle (801) in a penetrating manner, and a fan-shaped groove is penetrated on the baffle (801).

2. The automatic limestone powder feeding device according to claim 1, characterized in that: It also comprises a material blocking plate (501), the material blocking plate (501) being fixedly connected to the bottom of the inner wall of the second feeding pipe (201) via two support rods, and the diameter of the material blocking plate (501) is larger than the bottom end diameter of the second feeding pipe (201).

3. The automatic limestone powder feeding device according to claim 2 is characterized in that: It also comprises a wind limiting plate (601), the wind limiting plates (601) being symmetrically fixedly connected inside the first feeding pipe (1), and the two wind limiting plates (601) are arranged in an inclined manner.

4. Second, the automatic limestone powder feeding device according to claim 3 is characterized in that: The invention also comprises a third rotating shaft (901), the third rotating shaft (901) is rotatably connected in the separation tube (701), one end of the second rotating shaft (702) is connected to a reduction gear box, the third rotating shaft (901) is connected to the reduction gear box, a second fan (902) is fixedly connected to the third rotating shaft (901), a conical cover (903) is fixedly connected in the separation tube (701), and the third rotating shaft (901) is rotatably connected to the conical cover (903) in a through-type manner.

5. The automatic limestone powder feeding device according to claim 4 is characterized in that: The invention also comprises a third feeding pipe (1001), one end of the separation pipe (701) is connected to the third feeding pipe (1001), the third rotating shaft (901) is connected to a transmission assembly, the third feeding pipe (1001) is rotatably connected to a reciprocating screw (1002), the transmission assembly is connected to the reciprocating screw (1002), the third feeding pipe (1001) is fixedly connected to a mounting box (1003), a baffle plate (1004) is slidably connected to the mounting box (1003), a rectangular groove for use with the baffle plate (1004) is penetrated through the third feeding pipe (1001), and the baffle plate (1004) is threadedly connected to the reciprocating screw (1002).

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