Shell paper raw material grinding device

Abstract

The invention provides a shell paper raw material grinding device, and belongs to the technical field of shell powder preparation, the grinding device comprises a tank body, a pre-crushing mechanism, a grading mechanism and a millstone mechanism, a first chamber and a second chamber are arranged in the tank body, the pre-crushing mechanism is arranged in the first chamber to grind preliminarily crushed shells, the grading mechanism is arranged in the second chamber, and the millstone mechanism is arranged in the second chamber. Comprising a disc, partition plates and filter plates, the disc is rotationally arranged in the second cavity, the disc receives shells discharged from the first cavity, the partition plates are movably arranged on the periphery of the disc, the filter plates surround to form a closed shape and are movably arranged on the disc, and the partition plates and the filter plates surround the disc to form a plurality of storage cavities which are sequentially arranged in the radial direction of the disc. The sizes of the filter plates distributed from inside to outside are sequentially reduced, and the millstone mechanisms grind the shells conveyed by the corresponding storage cavities. According to the invention, pre-crushing is carried out through the pre-crushing mechanism, grading is carried out through the grading mechanism, and finally targeted fine grinding is carried out through the millstone mechanism, so that shell particles meeting the requirements of shell paper preparation can be ground.

Description

Technical Field

[0001] The invention relates to the technical field of shell powder preparation, and in particular to a shell paper raw material grinding device. Background Art

[0002] Shell paper has the advantages of long-lasting natural color and waterproof and fireproof, and is widely used in home decoration, lacquerware and lacquer painting, musical instruments, art, watch decoration, mobile phone decoration and other fields. The raw materials of shell paper mainly include abalone, black lip shell, white lip shell, yellow disc shell, pink shell, penguin shell, freshwater mother-of-pearl and other types of shells, which are transformed into powder particles through a series of processing processes. This processing process usually includes the steps of shell selection, cleaning, drying, calcining, crushing, grinding and so on.

[0003] At present, in the grinding stage, the shells are mainly ground by common grinding devices to form dry powders that meet the required fineness level. However, the existing grinding devices have relatively single functions and cannot evenly grind the broken shells, resulting in a large span of fineness of the prepared shell powder, making the prepared shell powder mixed with powdered particles that do not meet the required fineness level, and ultimately resulting in the performance of the shell paper produced from the shell powder cannot be guaranteed. Summary of the invention

[0004] Based on this, the purpose of the present invention is to provide a shell paper raw material grinding device, which can obtain shell powder with uniform fineness distribution by grading the shell powder and then performing corresponding grinding.

[0005] To achieve the above purpose, the technical solution adopted by the present invention is as follows:

[0006] The present invention provides a shell paper raw material grinding device, comprising a tank body, a pre-crushing mechanism, a grading mechanism, and a grinding disc mechanism. A first chamber and a second chamber are arranged in the tank body, which are distributed up and down. The radial cross-section of the second chamber is circular. A first connecting passage that can be opened and closed is arranged between the first chamber and the second chamber. The pre-crushing mechanism is arranged in the first chamber, and the pre-crushing mechanism is used to grind the shells that have been preliminarily crushed. The grading mechanism is arranged in the second chamber. The grading mechanism comprises a disc, a partition, and a filter plate. The disc is rotatably arranged in the second chamber, and the side wall of the disc is in sliding contact with the side wall of the second chamber. The partition is movably arranged at the periphery of the disc to move vertically relative to the disc. The filter plate is surrounded in a closed shape and is provided in plurality. Each filter plate has a different size. The filter plate is movably arranged on the disc to move relative to each other. The disc moves vertically, and when the partition and the filter plate both move upward, the tops of the partition and the filter plate are higher than the side surface of the disc close to the first chamber, so as to form a plurality of storage cavities around them. The plurality of storage cavities are arranged in radial order along the disc, and the innermost circle of the storage cavity is used to receive the shells discharged from the first chamber through the first connecting channel, and the sizes of the filter plates distributed from the inside to the outside decrease successively; when the partition and the filter plate both move downward, the tops of the partition and the filter plate are flush with the side surface of the disc close to the first chamber, and the side wall of the second chamber is provided with a second connecting channel that can be opened and closed corresponding to the position of the disc, the number of the grinding disc mechanisms is equal to the number of the storage cavities, and the grinding fineness of each grinding disc mechanism is different. The grinding disc mechanism is used to grind the shells transported by the corresponding storage cavity through the second connecting channel.

[0007] In addition, the shell paper raw material grinding device according to the present invention may also have the following additional technical features:

[0008] Furthermore, a stirring mechanism is provided in the storage chamber, the stirring mechanism includes a stirring rod, blades, and a first driving device, the stirring rod is rotatably arranged on a disc, the blades are arranged at one end of the stirring rod close to the storage chamber, the first driving device is arranged on the disc and is transmission-connected to the stirring rod to drive the stirring rod to rotate relative to the disc.

[0009] Furthermore, a first lifting mechanism is provided between the filter plate and the disc, and the first lifting mechanism is used for the vertical movement of the filter plate relative to the disc. A first slide groove matching the filter plate is provided through the disc. The first lifting mechanism includes a first screw rod, a first sleeve, and a second driving device. One end of the first screw rod is rotatably provided on the filter plate, the first sleeve is provided on the disc and is threadedly connected to the first screw rod, and the second driving device is provided on the disc and is transmission-connected to the other end of the first screw rod.

[0010] Furthermore, a second lifting mechanism is provided between the partition and the disc, and the second lifting mechanism is used to drive the partition to move vertically relative to the disc. A second slide groove matching the partition is provided through the disc. The second lifting mechanism includes a second screw rod, a second sleeve, and a third driving device. One end of the second screw rod is rotatably provided on the partition, the second sleeve is provided on the disc and is threadedly connected to the second screw rod, and the third driving device is provided on the disc and is transmission-connected to the other end of the second screw rod.

[0011] Furthermore, a rotating shaft is rotatably provided on the cavity wall of the second chamber, and a fourth driving device is provided on the tank body. The fourth driving device is transmission-connected to the rotating shaft to drive the rotating shaft to rotate relative to the tank body. The disc is sleeved on the rotating shaft and can slide along the axial direction of the rotating shaft. Two relatively arranged limiting rings are provided on the rotating shaft, and the disc is located between the two limiting rings. Elastic buffers are provided between the two limiting rings and the disc, and the elastic buffers are arranged in a circumferential array along the rotating shaft.

[0012] Furthermore, a conveying pipe connected to the first connecting channel is provided in the rotating shaft, the lowest end of the conveying pipe is higher than the disc, and a plurality of first discharge ports connected to the lowest end of the conveying pipe are provided on the side wall of the rotating shaft, the first discharge ports are higher than the disc, and the plurality of first discharge ports are arranged in a uniform array along the circumference of the rotating shaft.

[0013] Furthermore, a corrugated protrusion is provided at the bottom of the partition, a support seat is provided at the bottom of the second chamber, and the support seat is provided with pulleys arranged in an interval array and cooperating with the protrusion.

[0014] Furthermore, multiple grinding disc mechanisms are vertically stacked in descending order of grinding fineness, and the grinding disc mechanism includes a box body and a grinding disc, and the box body is provided with a grinding groove, and the grinding disc is rotatably arranged in the grinding groove, wherein the grinding grooves of each grinding disc mechanism are interconnected through a discharge channel, and each grinding groove is connected to the second connecting channel.

[0015] Furthermore, an inverted cone buffer tank is provided on the tank body, and the buffer tank is connected to the first connecting channel. The pre-crushing mechanism includes a sealing plate, a grinding table, and a grinding plate. The sealing plate is used to separate the first chamber into a first sub-chamber and a second sub-chamber distributed up and down. A plurality of second discharge ports are provided on the side wall of the first sub-chamber. The grinding table is rotatably arranged on the sealing plate and located in the first sub-chamber. A plurality of grinding plates are provided, and a plurality of grinding plates are rotatably arranged in the first sub-chamber. The grinding plates are arranged in a circumferential array along the grinding table in multiple circles, and the grinding pressure between the grinding plates distributed radially outward along the grinding table and the grinding table increases successively. One end of the second discharge port corresponds to the position of the grinding table, and the other end of the second discharge port is connected to the buffer tank.

[0016] Furthermore, the first connecting channel is in an inverted cone shape and its large end extends into the second sub-chamber, the large end of the first connecting channel is connected to the sealing plate, the buffer tank is connected to the top of the large end of the first connecting channel, the buffer tank introduces an airflow tangent to the circumference of the first connecting channel into the first connecting channel, and the large end of the first connecting channel is also provided with a discharge pipe connected to the outside of the tank body.

[0017] The beneficial effects of the present invention include at least: fine grinding of the granular material containing larger shell particles in the crushing stage by a pre-crushing mechanism to further reduce the fineness distribution range of the prepared shell particles, and then processing by a grading mechanism to classify the shell particles in different fineness distribution ranges, and finally targeted grinding of the corresponding type of shell particles by a grinding disc mechanism corresponding to the grinding fineness, so that shell particles with uniform fineness span can be obtained efficiently, and the prepared shell particles can meet the requirements for preparing shell paper. Compared with the simple and extensive grinding method in the prior art, by pre-crushing, grading, and finally targeted fine grinding, it is not easy to cause the uniformity of the ground shell particles to fail to meet the requirements for preparing shell paper due to the mutual influence of large-size shell particles and small-size shell particles during mixed grinding. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a shell paper raw material grinding device in one embodiment of the present invention;

[0019] Figure 2 It is a structural schematic diagram of a pre-crushing mechanism in one embodiment of the present invention;

[0020] Figure 3 It is a structural schematic diagram of a grading mechanism in an embodiment of the present invention from a first perspective;

[0021] Figure 4 for Figure 3 A schematic diagram of the structure of the second perspective of the hierarchical organization;

[0022] Figure 5 is a schematic structural diagram of a stirring mechanism in one embodiment of the present invention;

[0023] Figure 6 It is a structural schematic diagram of a second lifting mechanism in one embodiment of the present invention;

[0024] Figure 7 It is a structural schematic diagram of a first lifting mechanism in one embodiment of the present invention;

[0025] Figure 8 It is a schematic diagram of the assembly of the partition plate and the support seat in one embodiment of the present invention;

[0026] Fig. 9is a schematic structural diagram of a rotating shaft in one embodiment of the present invention;

[0027] Fig.10 It is a structural schematic diagram of a grinding disc mechanism in one embodiment of the present invention;

[0028] Description of main component symbols:

[0029] Tank body 100, first chamber 110, first sub-chamber 111, second sub-chamber 112, second chamber 120, support seat 123, pulley 124, second discharge port 125, rotating shaft 130, limiting ring 131, elastic buffer 132, conveying pipeline 133, first discharge port 134, fourth driving device 140, first connecting channel 150, discharge pipe 151, second connecting channel 160;

[0030] Pre-crushing mechanism 200, sealing plate 210, grinding table 220, grinding plate 230;

[0031] The grading mechanism 300, the disc 310, the storage chamber 311, the first chute 312, the second chute 313, the partition plate 320, the protrusion 321, and the filter plate 330;

[0032] Grinding disc mechanism 400, box body 410, discharge channel 411, grinding groove 412, grinding disc 420;

[0033] A stirring mechanism 500, a stirring rod 510, a blade 520, and a first driving device 530;

[0034] A first lifting mechanism 600, a first screw rod 610, a first sleeve 620, and a second driving device 630;

[0035] A second lifting mechanism 700, a second screw rod 710, a second sleeve 720, and a third driving device 730;

[0036] Buffer tank 800;

[0037] The following specific implementation manner will further illustrate the present invention in conjunction with the above-mentioned drawings. DETAILED DESCRIPTION

[0038] In order to facilitate the understanding of the present invention, the present invention will be described more fully below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0039] It should be noted that when an element is referred to as being "fixed to" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0040] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0041] Please refer to Figures 1 to 10 , a shell paper raw material grinding device provided by the present invention, the device includes a tank body 100, a pre-crushing mechanism 200, a grading mechanism 300, and a grinding disc mechanism 400.

[0042] The tank body 100 is provided with a first chamber 110 and a second chamber 120 which are distributed vertically. The radial cross section of the second chamber 120 is circular. A first communication passage 150 which can be opened and closed is provided between the first chamber 110 and the second chamber 120. The pre-crushing mechanism 200 is provided in the first chamber 110. Before use, the shells crushed by the crushing device are added into the first chamber 110. When in use, the pre-crushing mechanism 200 grinds the shells in the first chamber 110 to reduce the fineness of the shells.

[0043] Since the fineness distribution span of the shell particles obtained after the pre-crushing mechanism 200 processes the shells is relatively large and does not meet the requirements for preparing shell paper, a grading mechanism 300 is used in this embodiment to grade the shells processed by the pre-crushing mechanism 200, classify the shell particles in different fineness distribution ranges, and then perform targeted grinding on each type of shell particles, so that the fineness span of the shell particles finally obtained is uniform and meets the requirements for preparing shell paper.

[0044] Specifically, the grading mechanism 300 is disposed in the second chamber 120, and the grading mechanism 300 includes a disc 310, a partition 320, and a filter plate 330. The disc 310 is rotatably disposed in the second chamber 120, and when in use, the shell particles obtained after being processed by the pre-crushing mechanism 200 in the first chamber 110 are transmitted to the disc 310 through the first connecting channel 150. In order to prevent the shell particles from entering the area between the side wall of the disc 310 and the side wall of the second chamber 120 when the disc 310 receives the shell particles and rotates, the side wall of the disc 310 is in sliding contact with the side wall of the second chamber 120, so as not to affect the rotation of the disc 310 and the up and down movement of the disc 310. The partition 320 is movably disposed at the periphery of the disc 310, and the specific moving direction is to move vertically relative to the disc 310. The filter plates 330 are arranged in a closed shape and are provided in plurality. Preferably, the filter plates 330 are arranged in a circle. The size of each filter plate 330 is different. The filter plates 330 are movably arranged on the disc 310 , and the specific moving direction is vertical movement relative to the disc 310 .

[0045] In addition, a second connecting channel 160 that can be opened and closed and corresponds to the position of the disc 310 is provided on the side wall of the second chamber 120 so as to transfer the shell particles obtained after being processed by the grading mechanism 300 to the grinding disc mechanism 400 through the second connecting channel 160 .

[0046] In this embodiment, when the partition plate 320 and the filter plate 330 both move upward, the tops of the partition plate 320 and the filter plate 330 are higher than the upper surface of the disc 310, where the upper surface of the disc 310 refers to the side surface of the disc 310 close to the first chamber 110. At this time, the partition plate 320 and the filter plate 330 surround the upper surface of the disc 310 to form a plurality of storage cavities 311, and the plurality of storage cavities 311 are sequentially arranged along the radial direction of the disc 310, that is, the storage cavities 311 of the outer circle surround the storage cavities 311 of the inner circle, and the sizes of the filter plates 330 distributed from the inside to the outside are reduced in sequence.

[0047] The number of the grinding disc mechanisms 400 is equal to that of the storage chambers 311, and the grinding fineness of each grinding disc mechanism 400 is different. When in use, the grinding disc mechanism 400 receives the shell particles transmitted by the grading mechanism 300 and further grinds them until shell particles that meet the requirements of shell paper are prepared.

[0048] When in use, the innermost storage chamber 311 receives the shells discharged from the first chamber 110 through the first connecting channel 150, and the disc 310 drives the shell particles in the innermost storage chamber 311 to rotate together. Since the sizes of the filter plates 330 distributed from the inside to the outside are reduced successively, under the action of centrifugal force, shell particles with different fineness distributions will be accumulated in the storage chambers 311 arranged in radial order along the disc 310. In addition, since the grinding fineness of each grinding disc mechanism 400 is different, each grinding disc mechanism 400 can be connected to the storage chamber 311 with the corresponding fineness distribution through the second connecting channel 160. At this time, since the fineness distribution of the shell particles in the storage chamber 311 is relatively concentrated, the grinding disc mechanism 400 with the corresponding grinding fineness is used for fine grinding, and shell particles that meet the requirements for preparing shell paper can be efficiently ground.

[0049] It can be understood that the smaller the interval between the sieve holes of adjacent filter plates 330 , the more concentrated the fineness distribution of the shell particles distributed in the storage chamber 311 .

[0050] In this embodiment, when the partition plate 320 and the filter plate 330 both move downward, the tops of the partition plate 320 and the filter plate 330 are flush with the upper surface of the disc 310 .

[0051] When in use, the outermost partition 320 is first lowered until the top of the partition 320 is flush with the upper surface of the disc 310. At this time, under the action of the centrifugal force generated by the rotating disc 310, the shell particles in the outermost storage cavity 311 are thrown out of the disc 310 and transferred to the grinding disc mechanism 400 of the corresponding grinding fineness through the second connecting channel 160 provided on the inner side wall of the second chamber 120. Next, each filter plate 330 is opened in sequence from the outside to the inside until the shell particles in each storage cavity 311 are transferred to the grinding disc mechanism 400 of the corresponding grinding fineness for processing.

[0052] It should be noted that in order to correctly transfer the shell particles in a certain storage cavity 311 to the grinding disc mechanism 400 of the corresponding grinding fineness, when the second connecting channel 160 is connected to the grinding disc mechanism 400, it is necessary to set the same number of opening and closing devices as the grinding disc mechanism 400, such as solenoid valves. By opening the solenoid valves in different positions in turn, the purpose of transferring the shell particles in each storage cavity 311 to the grinding disc mechanism 400 of the corresponding grinding fineness can be achieved.

[0053] During the rotation of the disk 310, the shell particles in the innermost storage cavity 311 need to pass through the filter plates 330 whose sizes decrease from the inside to the outside. However, when the shell particles in the storage cavity 311 agglomerate, the agglomerated shell particles are mixed with shell particles of different fineness distributions, which may cause the shell particles with smaller particle sizes to be unable to move to the outer storage cavity 311, resulting in classification failure. Therefore, in some optional embodiments, such as Figure 1 As shown, a stirring mechanism 500 is provided in the storage chamber 311. Specifically, the stirring mechanism 500 includes a stirring rod 510, blades 520, and a first driving device 530.

[0054] Among them, the stirring rod 510 is rotatably arranged on the disc 310, and the blade 520 is arranged at the upper end of the stirring rod 510. Here, the upper end of the stirring rod 510 refers to the end of the stirring rod 510 close to the storage chamber 311. The first driving device 530 is arranged on the disc 310, and the first driving device 530 is also connected to the stirring rod 510. During operation, the first driving device 530 drives the stirring rod 510 to rotate relative to the disc 310. The blade 520 is driven to rotate by the rotation of the stirring rod 510. The blade 520 stirs the shell particles in the storage chamber 311, so that the shell particles in the storage chamber 311 are dispersed, thereby avoiding the agglomeration of the shell particles, which is beneficial to the filtration of the filter plate 330. Optionally, the first driving device 530 can select a power device such as a rotary motor and a rotary cylinder.

[0055] In some optional embodiments, such as Figure 7 As shown, a first lifting mechanism 600 is provided between the filter plate 330 and the disc 310, and the vertical movement of the filter plate 330 relative to the disc 310 can be realized by the first lifting mechanism 600. Specifically, the disc 310 is provided with a first chute 312 matching the filter plate 330, and the filter plate 330 is inserted into the first chute 312. The first lifting mechanism 600 includes a first screw rod 610, a first sleeve 620, and a second driving device 630. The upper end of the first screw rod 610 is rotatably connected with the filter plate 330, the first sleeve 620 is fixed on the disc 310, the first sleeve 620 is threadedly connected with the first screw rod 610, the second driving device 630 is also fixed on the disc 310, and the second driving device 630 is also transmission-connected with the lower end of the first screw rod 610. Optionally, the second driving device 630 can select a power device such as a rotary motor and a rotary cylinder.

[0056] In this embodiment, when the filter plate 330 needs to cooperate with the partition plate 320 to form a plurality of storage cavities 311 around the upper surface of the disc 310, the second driving device 630 is actuated to drive the first screw rod 610 to rotate in a certain direction. Since the first sleeve 620 is in a stationary state relative to the disc 310, the lower end of the first screw rod 610 will move upward relative to the first sleeve 620, and then the first sleeve 620 moving upward pushes the filter plate 330 to move in the first chute 312, and the moving direction is upward. Similarly, when the shell particles in the storage cavity 311 need to be thrown out of the disc 310, the second driving device 630 drives the first screw rod 610 to rotate in the opposite direction.

[0057] In some optional embodiments, such as Figure 6As shown, a second lifting mechanism 700 is provided between the partition 320 and the disc 310, and the vertical movement of the partition 320 relative to the disc 310 can be realized by the second lifting mechanism 700. The disc 310 is provided with a second slide groove 313 matching the partition 320, and the partition 320 is inserted into the second slide groove 313. The second lifting mechanism 700 includes a second screw rod 710, a second sleeve 720, and a third driving device 730. The upper end of the second screw rod 710 is rotatably connected with the partition 320, the second sleeve 720 is fixed on the disc 310, the second sleeve 720 is threadedly connected with the second screw rod 710, and the third driving device 730 is also fixed on the disc 310, and the third driving device 730 is also drivingly connected with the lower end of the first screw rod 610. Optionally, the third driving device 730 can select a power device such as a rotary motor and a rotary cylinder.

[0058] In this embodiment, when the partition 320 needs to cooperate with the filter plate 330 to form a plurality of storage cavities 311 around the upper surface of the disc 310, the third driving device 730 is actuated to drive the second screw rod 710 to rotate in a certain direction. Since the second sleeve 720 is in a stationary state relative to the disc 310, the lower end of the second screw rod 710 will move upward relative to the second sleeve 720, and then the second sleeve 720 moving upward pushes the partition 320 to move in the second chute 313, and the moving direction is upward. Similarly, when the shell particles in the storage cavity 311 need to be thrown out of the disc 310, the third driving device 730 drives the second screw rod 710 to rotate in the opposite direction.

[0059] In order to enable the disk 310 to rotate in the second chamber 120, in some optional embodiments, as Figure 1 , Fig. 9 As shown, a rotating shaft 130 is rotatably provided on the cavity wall of the second chamber 120, and a disc 310 is sleeved on the rotating shaft 130, and the disc 310 can rotate with the rotating shaft 130. In addition, a fourth driving device 140 is provided on the tank body 100, and the fourth driving device 140 is in transmission connection with the rotating shaft 130. When working, the fourth driving device 140 drives the rotating shaft 130 to rotate relative to the tank body 100, thereby driving the disc 310 to rotate in the second chamber 120 to generate centrifugal force for classification. Optionally, the fourth driving device 140 can select a power device such as a rotating motor and a rotating cylinder.

[0060] At the same time, in order to enable the disc 310 carrying the shell particles to rotate stably, the disc 310 sleeved on the rotating shaft 130 can also slide along the axial direction of the rotating shaft 130. For example, the disc 310 and the rotating shaft 130 can be assembled together by a shaft key. Further, in order to limit the sliding stroke range of the disc 310, two relatively arranged limiting rings 131 are also provided on the rotating shaft 130, and the disc 310 is located between the two limiting rings 131. Further, elastic buffers 132 are provided between the two limiting rings 131 and the disc 310, and the elastic buffers 132 are arranged in a circumferential array along the rotating shaft 130. Optionally, the elastic buffers 132 can be elastic members such as springs.

[0061] In this embodiment, when the weight of the shell particles carried by the disc 310 is unevenly distributed, the disc 310 tends to deflect to the heavier side, which will increase the local contact pressure between the disc 310 and the rotating shaft 130. If this continues for a long time, it will easily cause the disc 310 to deform, thereby affecting the edge of the disc 310 from sliding on the side wall of the second chamber 120. By configuring the disc 310 to be able to slide along the axial direction of the rotating shaft 130, and by providing an elastic buffer 132 between the limit ring 131 and the disc 310, the elastic buffer 132 provides a reverse force to prevent deflection, so that the disc 310 is in a horizontal state as much as possible when rotating, thereby alleviating the deformation caused by the uneven weight distribution.

[0062] When the disc 310 rotates in the second chamber 120, in order to prevent the rotating shaft 130 driving the disc 310 from affecting the unloading operation of the first chamber 110, in some optional embodiments, such as Figure 1 , Fig. 9 As shown, a conveying pipe 133 connected to the first communication channel 150 is provided in the rotating shaft 130, and a plurality of first discharge ports 134 connected to the lowest end of the conveying pipe 133 are provided on the side wall of the rotating shaft 130. The height of the lowest end of the conveying pipe 133 is higher than the disc 310, and the height of the first discharge ports 134 is also higher than the disc 310, so that all shell particles in the conveying pipe 133 can be discharged from the first discharge ports 134 into the innermost storage cavity 311. Moreover, the plurality of discharge ports are evenly arranged in an array along the circumference of the rotating shaft 130, so that the shell particles discharged from the first discharge ports 134 can fall more evenly into the innermost storage cavity 311, and the method of discharging from the side wall of the rotating shaft 130 can prevent the shell particles from concentratedly impacting the disc 310 during unloading, and avoid the disc 310 from being greatly deformed, so that the disc 310 carrying the shell particles can rotate stably.

[0063] During the rotation of the disc 310, the shell particles in the innermost storage cavity 311 need to pass through the filter plates 330 whose sizes decrease from the inside to the outside. However, when the shell particles in the storage cavity 311 agglomerate, the agglomerated shell particles may adhere to the filter screen, the partition 320 and the disc 310. Even if a certain centrifugal force can be generated when the disc 310 rotates, this centrifugal force may not be able to throw out the adhered shell particles in time. Even more, when the adhesion of the shell particles in the storage cavity 311 increases due to the influence of moisture, the centrifugal force generated when the disc 310 rotates may be even more unable to throw out the adhered shell particles. Therefore, in some optional embodiments, such as Figure 8 As shown, a corrugated protrusion 321 is provided at the bottom of the partition 320, and a support seat 123 is provided at the bottom of the second chamber 120. The support seat 123 is provided with pulleys 124 arranged in an interval array and matched with the protrusion 321. When the top of the partition 320 is flush with the upper surface of the disc 310, the pulley 124 on the support seat 123 contacts the protrusion 321 on the partition 320, and when the top of the partition 320 is higher than the upper surface of the disc 310, the protrusion 321 on the partition 320 is away from the pulley 124 on the support seat 123.

[0064] In this embodiment, when the partition 320 rotates with the disc 310, the protrusion 321 is periodically embedded in the gap between the pulleys 124 and is supported on the pulley 124. Since the disc 310 mounted on the rotating shaft 130 can also slide axially along the rotating shaft 130, the partition 320 will be in a state of up and down bumping during this process, thereby driving the disc 310 to bump together. In conjunction with the stirring mechanism 500 provided in the storage chamber 311, the adhered shell particles can be vibrated away and the agglomerated shell particles can also be broken up, thereby ensuring the smooth progress of the grading process.

[0065] In addition, the pulley 124 can also rotate relative to the support seat 123, so that when the partition 320 rotates, the protrusion 321 is not easily stuck between the pulleys 124, so that the cooperation between the protrusion 321 and the pulley 124 does not affect the rotation of the disc 310.

[0066] When the storage chamber 311 storing shell particles of larger particle size is connected to the grinding disc mechanism 400 of corresponding grinding fineness through the second connecting channel, the grinding disc mechanism 400 of the grinding fineness will also produce shell particles of smaller particle size that do not meet the requirements for preparing shell paper during the grinding process. These shell particles need to be manually screened out and then added to the grinding disc mechanism 400 of other grinding fineness for fine grinding. This operation is not only cumbersome and labor-intensive, but also requires the addition of a grinding disc mechanism 400, which increases production costs. For this reason, in some optional embodiments, such as Fig.10As shown, a plurality of grinding disc mechanisms 400 are stacked vertically in descending order of grinding fineness, and at this time, the grinding fineness of the top grinding disc mechanism 400 is the greatest.

[0067] Specifically, the grinding disc mechanism 400 includes a housing 410 and a grinding disc 420. The housing 410 is provided with a grinding groove 412. The grinding disc 420 is rotatably arranged in the grinding groove 412. The grinding disc 420 and the grinding groove 412 are arranged with a gap. The grinding grooves 412 of each grinding disc mechanism 400 are interconnected through a discharge channel 411. Each grinding groove 412 is connected to the second connecting channel 160. It should be noted that the grinding fineness of the grinding disc mechanism 400 can be adjusted by adjusting the gap between the grinding disc 420 and the grinding groove 412 and the rotation speed of the grinding disc 420.

[0068] In some optional embodiments, such as Figure 1 As shown, an inverted cone-shaped buffer tank 800 is provided on the tank body 100 , the small end of the inverted cone-shaped buffer tank 800 faces downward, and the small end of the cone-shaped buffer tank 800 is also connected to the first connecting channel 150 , and the pre-crushing mechanism 200 includes a sealing plate 210 , a grinding table 220 , and a grinding plate 230 .

[0069] The sealing plate 210 divides the first chamber 110 into a first sub-chamber 111 and a second sub-chamber 112 distributed up and down, and a plurality of second discharge ports 125 are provided on the side wall of the first sub-chamber 111. The grinding table 220 is located in the first sub-chamber 111, and the grinding table 220 is also rotatably arranged on the sealing plate 210. There are a plurality of grinding plates 230, and the plurality of grinding plates 230 are rotatably arranged in the first sub-chamber 111. The grinding plates 230 are arranged in a plurality of circles along the circumferential array of the grinding table 220, so as to grind the shell particles on the grinding table 220 as much as possible. Since the grinding table 220 generates centrifugal force when rotating, the shell particles with larger particle size move toward the outer circle direction of the grinding table 220 under the action of the centrifugal force. In order to grind evenly, the grinding pressure between the grinding plates 230 and the grinding table 220 distributed radially outward from the grinding table 220 increases successively. It should be noted that the grinding plate 230 and the grinding table 220 need to maintain a certain distance so that the shell particles can enter the gap between the grinding plate 230 and the grinding table 220. In addition, in order to effectively discharge the ground shell particles, one end of the second discharge port 125 corresponds to the position of the grinding plate 230, and the other end of the second discharge port 125 is connected to the buffer tank 800, so that the shell particles thrown out from the periphery of the grinding table 220 can enter the inverted cone buffer tank 800 through the second discharge port 125. At the same time, since the small end of the inverted cone buffer tank 800 is connected to the first connecting channel 150, the shell particles in the buffer tank 800 can fall smoothly into the first connecting channel 150.

[0070] In this embodiment, the shell particles can be evenly ground by cooperating the grinding table 220 and the grinding plate 230 which rotate independently and setting the grinding pressure between the grinding plate 230 and the grinding table 220 which are distributed radially outward along the grinding table 220 to increase successively.

[0071] Since the shell particles prepared by the pre-crushing mechanism 200 may contain particles that meet the requirements for preparing shell paper, if they are subsequently finely ground by the grinding disc mechanism 400, it may lead to over-grinding, increasing the classification workload and the power consumption of the equipment. Figure 1 As shown, the first communication channel 150 is set to be an inverted cone, and the small end of the inverted cone-shaped first communication channel 150 faces downward, while the large end of the inverted cone-shaped first communication channel 150 faces upward and extends into the second sub-chamber 112 until the top of the large end of the first communication channel 150 is connected to the lower end of the sealing plate 210. The large end of the first communication channel 150 is also provided with a discharge pipe 151 connected to the outside of the tank body 100. In addition, in order to transport the shell particles in the buffer tank 800 to the second chamber 120 through the first communication channel 150, the buffer tank 800 is connected to the top of the large end of the first communication channel 150. In order to separate the shell particles that meet the requirements for preparing shell paper in the buffer tank 800, a flowing airflow is also introduced into the buffer tank 800. When the flowing airflow is blown into the first connecting channel 150, the shell particles in the buffer tank 800 are carried along the tangential movement of the side wall of the first connecting channel 150. Then the flowing airflow rotates and moves downward in the inverted cone-shaped first connecting channel 150. In this process, the shell particles with large particle size are thrown to the inner wall of the first connecting channel 150 due to the centrifugal force, while the gas continues to move along the central axis. When the airflow reaches a certain position at the bottom of the small end of the first connecting channel 150, it will turn upward to form an internal vortex and be discharged through the discharge pipe 151. At the same time, the shell particles thrown to the inner wall of the first connecting channel 150 fall into the bottom of the small end of the first connecting channel 150 along the wall under the combined action of airflow and gravity, while the shell particles that meet the requirements for preparing shell paper are discharged from the discharge pipe 151 along the internal vortex.

[0072] In summary, the shell paper raw material grinding device in this embodiment, through the pre-crushing mechanism 200, finely grinds the granular material containing larger shell particles in the crushing stage to further reduce the fineness distribution range of the prepared shell particles, and then processes it through the grading mechanism 300 to classify the shell particles in different fineness distribution ranges, and finally, through the grinding disc mechanism 400 of the corresponding grinding fineness, the corresponding type of shell particles is targetedly ground, and finally, shell particles with uniform fineness span can be obtained efficiently, and the prepared shell particles can meet the requirements for preparing shell paper. Compared with the simple and extensive grinding method in the prior art, through the method of pre-crushing, grading, and finally targeted fine grinding, it is not easy to cause the uniformity of the ground shell particles to fail to meet the requirements for preparing shell paper due to the mutual influence of large-size shell particles and small-size shell particles during mixed grinding.

[0073] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0074] The above-mentioned embodiments only express several implementation modes of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the protection scope of the present invention. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the attached claims.

Claims

1. A shell paper raw material grinding device, characterized in that: The shell paper raw material grinding device comprises: A tank body, wherein a first chamber and a second chamber are arranged in the tank body and are arranged vertically, wherein the radial cross section of the second chamber is circular, and a first communication passage that can be opened and closed is arranged between the first chamber and the second chamber; A pre-crushing mechanism, disposed in the first chamber, for grinding the shells after preliminary crushing; A grading mechanism is disposed in the second chamber, and the grading mechanism comprises: A disc is rotatably disposed in the second chamber, and a side wall of the disc is in sliding contact with a side wall of the second chamber; A partition plate is movably arranged on the periphery of the disc to move vertically relative to the disc; A plurality of filter plates are provided in a closed shape, each of which has a different size, and the filter plates are movably arranged on the disc to move vertically relative to the disc; Wherein, when the partition plate and the filter plate both move upward, the tops of the partition plate and the filter plate are both higher than the surface of one side of the disc close to the first chamber, so as to surround and form a plurality of storage cavities, and the plurality of storage cavities are sequentially arranged along the radial direction of the disc, and the storage cavity in the innermost circle is used to receive the shells discharged from the first chamber through the first connecting channel, and the sizes of the filter plates distributed from the inside to the outside are reduced in sequence; when the partition plate and the filter plate both move downward, the tops of the partition plate and the filter plate are flush with the surface of one side of the disc close to the first chamber; The side wall of the second chamber is provided with a second connecting passage which can be opened and closed and corresponds to the position of the disc; The number of the grinding disc mechanisms is equal to the number of the storage cavities, and the grinding fineness of each of the grinding disc mechanisms is different. The grinding disc mechanisms are used to grind the shells transported by the corresponding storage cavities through the second connecting channel.

2. The shell paper raw material grinding device according to claim 1, characterized in that: A stirring mechanism is provided in the storage chamber, and the stirring mechanism comprises: A stirring rod, rotatably disposed on the disc; A blade is provided at one end of the stirring rod close to the storage chamber; The first driving device is arranged on the disc and is transmission-connected with the stirring rod to drive the stirring rod to rotate relative to the disc.

3. The shell paper raw material grinding device according to claim 1, characterized in that: A first lifting mechanism is provided between the filter plate and the disc, and the first lifting mechanism is used for the vertical movement of the filter plate relative to the disc. The disc is penetrated by a first slide groove matching the filter plate, and the first lifting mechanism includes: A first screw rod, one end of which is rotatably disposed on the filter plate; A first sleeve, disposed on the disc and threadedly connected to the first screw rod; The second driving device is arranged on the disc and is transmission-connected with the other end of the first screw rod.

4. The shell paper raw material grinding device according to claim 1, characterized in that: A second lifting mechanism is provided between the partition and the disc, and the second lifting mechanism is used to drive the partition to move vertically relative to the disc. The disc is penetrated by a second slide groove matching the partition, and the second lifting mechanism includes: A second screw rod, one end of which is rotatably mounted on the partition plate; A second sleeve, disposed on the disc and threadedly connected to the second screw rod; The third driving device is arranged on the disc and is transmission-connected with the other end of the second screw rod.

5. The shell paper raw material grinding device according to claim 4, characterized in that: A rotating shaft is rotatably provided on the cavity wall of the second chamber, and a fourth driving device is provided on the tank body. The fourth driving device is transmission-connected with the rotating shaft to drive the rotating shaft to rotate relative to the tank body. The disc is sleeved on the rotating shaft and can slide along the axial direction of the rotating shaft. Two relatively arranged limiting rings are provided on the rotating shaft, and the disc is located between the two limiting rings. Elastic buffers are provided between the two limiting rings and the disc, and the elastic buffers are arranged in a circumferential array along the rotating shaft.

6. The shell paper raw material grinding device according to claim 5, characterized in that: A conveying pipe connected to the first connecting channel is provided in the rotating shaft, and the lowest end of the conveying pipe is higher than the disc. A plurality of first discharge ports connected to the lowest end of the conveying pipe are provided on the side wall of the rotating shaft, and the first discharge ports are higher than the disc. The plurality of first discharge ports are evenly arrayed along the circumference of the rotating shaft.

7. The shell paper raw material grinding device according to claim 5, characterized in that: The bottom of the partition is provided with a corrugated protrusion, the bottom of the second chamber is provided with a support seat, and the support seat is provided with pulleys arranged in an interval array and cooperating with the protrusion.

8. The shell paper raw material grinding device according to claim 1, characterized in that: A plurality of the grinding disc mechanisms are vertically stacked and arranged in descending order of grinding fineness, and the grinding disc mechanism comprises: A box body, wherein the box body is provided with a grinding groove; A grinding disc, rotatably disposed in the grinding groove; Wherein, the grinding grooves of each grinding disc mechanism are connected to each other through a discharge channel, and each grinding groove is connected to the second connecting channel.

9. The shell paper raw material grinding device according to claim 1, characterized in that: The tank body is provided with an inverted conical buffer tank, the buffer tank is communicated with the first communicating channel, and the pre-crushing mechanism comprises: A sealing plate, used for dividing the first chamber into a first sub-chamber and a second sub-chamber distributed vertically, wherein a plurality of second discharge ports are provided on a side wall of the first sub-chamber; A grinding table, rotatably disposed on the sealing plate and located in the first sub-chamber; There are multiple grinding plates, and the multiple grinding plates are rotatably arranged in the first sub-chamber. The grinding plates are arranged in multiple circles along the circumferential array of the grinding table, and the grinding pressure between the grinding plates distributed radially outward along the grinding table and the grinding table increases successively. One end of the second discharge port corresponds to the position of the grinding table, and the other end of the second discharge port is connected to the buffer tank.

10. The shell paper raw material grinding device according to claim 9, characterized in that: The first connecting channel is in an inverted cone shape and its large end extends into the second sub-chamber. The large end of the first connecting channel is connected to the sealing plate. The buffer tank is connected to the top of the large end of the first connecting channel. The buffer tank introduces an airflow tangential to the circumference of the first connecting channel into the first connecting channel. The large end of the first connecting channel is also provided with a discharge pipe connected to the outside of the tank body.

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