Crushing plant

Abstract

The application relates to a crushing device, which comprises a crushing device, a separating device, a collecting device and a guiding device. The crushing device comprises a rotating drum and a wear-resistant layer, the rotating drum is rotatably arranged around an axis of the rotating drum, and the rotating drum comprises a crushing cavity, and the wear-resistant layer is arranged on the inner wall of the crushing cavity; the separating device can obtain materials treated by the crushing device, and separate materials with a particle size greater than a first size from materials with a particle size below the first size; the collecting device can collect the materials with the particle size below the first size; and the guiding device is used for guiding the materials to be conveyed along the crushing device, the separating device and the collecting device. By using the crushing device, the crushing device can crush ceramic tailings, the guiding device can guide the powder generated after the ceramic is crushed to pass through the separating device and the collecting device in sequence, and the collecting device can collect the qualified powder after the separation of the separating device. Compared with the existing manual crushing, the crushing device effectively improves the crushing efficiency and saves time and labor.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of powder preparation, and particularly relates to a crushing device. BACKGROUND

[0002] A large amount of tailings is generated in the production process of ceramic products. In order to realize resource recycling, the tailings are generally crushed, powdered, and then reused to prepare ceramic products. However, the existing ceramic crushing treatment method generally manually knocks the tailings, and then uses a vibrating screen to screen out the powder, which is time-consuming and laborious and has low efficiency. SUMMARY

[0003] Based on the above problems, the application provides a crushing device capable of recycling ceramic tailings crushed into powder, saving time and labor, and having high efficiency.

[0004] The technical scheme provided by the application is as follows:

[0005] A crushing device comprises:

[0006] A crushing device comprises a rotating drum and a wear-resistant layer, the rotating drum is rotatably arranged around its own axis, and the rotating drum comprises a crushing cavity, and the wear-resistant layer is laid on the inner wall of the crushing cavity;

[0007] A separation device is arranged downstream of the crushing device, the separation device can obtain the material treated by the crushing device, and separate the material with a particle size greater than a first size from the material with a particle size less than the first size;

[0008] A collection device is arranged downstream of the separation device, and the collection device can collect the material with a particle size less than the first size;

[0009] A guide device is arranged on the collection device, and is used to guide the material to be conveyed along the crushing device, the separation device and the collection device.

[0010] Further, the crushing device further comprises a feeding device, the feeding device comprises a feeding conveying line and a dryer, the feeding conveying line is arranged upstream of the crushing device, and the dryer is arranged corresponding to the feeding conveying line and is used to dry the material conveyed by the feeding conveying line to the crushing device.

[0011] Further, the rotating drum is further provided with a discharge port communicated with the crushing cavity, and the crushing device further comprises a filtering device, the filtering device is arranged between the crushing device and the separation device, the filtering device is communicated with the discharge port, and the filtering device can filter and collect the material with a particle size greater than a second size.

[0012] Further, the crushing device further comprises a flexible connecting pipe connected between the filtering device and the separating device.

[0013] Further, the rotary drum is further provided with an inlet communicated with the crushing cavity, and the crushing device further comprises a guide hopper, the guide hopper is rotationally connected with the rotary drum, and the guide hopper is provided with a control valve, the control valve can divide the internal space of the guide hopper into a first space and a second space, the inlet of the guide hopper is communicated with the first space, the inlet is communicated with the second space, and the control valve can connect or separate the first space and the second space.

[0014] The crushing device further comprises an air inlet mechanism, the air inlet mechanism partially penetrates the guide hopper and extends into the second space.

[0015] Further, the air inlet mechanism comprises an air outlet pipe, the air outlet pipe penetrates the second space and the inlet and extends into the top of the crushing cavity, and the air outlet pipe can spray gas towards the bottom of the crushing cavity.

[0016] Further, the inner side wall of the crushing cavity is further provided with a baffle, the baffle extends along the axial direction of the rotary drum, and the baffle protrudes from the wear-resistant layer.

[0017] The end of the baffle away from the inner side wall of the crushing cavity is further provided with a blocking plate, and the blocking plate is arranged at an angle with the baffle.

[0018] Further, a plurality of through holes are formed through the baffle along the thickness direction of the baffle.

[0019] Further, the separating device comprises a separator and a first collecting tank, the separator can separate materials with a particle size greater than the first size from materials with a particle size less than the first size, the first collecting tank is arranged corresponding to the separator, and the first collecting tank can collect materials with a particle size greater than the first size.

[0020] Further, the collecting device comprises a collecting box, a dust collector and a second collecting tank, the collecting box comprises an inner cavity, an inlet communicated with the inner cavity, a discharge outlet and an exhaust outlet, the inlet is communicated with the separating device, the dust collector is arranged in the inner cavity, the second collecting tank is arranged corresponding to the discharge outlet, and the guide device is arranged in the collecting box and communicated with the exhaust outlet.

[0021] The crushing device can crush the ceramic tailings, the guiding device can guide the powder generated after the ceramic is crushed to pass through the separating device and the collecting device in turn, and the collecting device can collect the powder meeting the requirements after the powder passes through the separating device. Compared with the existing manual knocking, the crushing device effectively improves the crushing efficiency and saves time and effort. Meanwhile, the crushing is carried out in a closed device, so that the amount of dust in the workshop can be reduced, and the health of workers can be ensured.

[0022] In addition, the material is dried by the dryer during the material feeding process, so as to improve the crushing efficiency; the material is in the protective gas in the whole process, so that the oxidation of the material can be effectively avoided; the wear-resistant layer is arranged in the crushing cavity, so that the metal impurities can be avoided, and the purity of the powder can be ensured; the partition plate is arranged in the crushing cavity, so that the material can be carried to rotate, the falling height of the material is increased, and the crushing efficiency is improved. Meanwhile, the gas is blown downward from the gas outlet pipe at the top, so that the initial speed of the free fall of the material is improved, and the crushing efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, illustrate the present application together with the embodiments thereof, and explain the present application, but do not limit the present application.

[0024] Figure 1 The structure schematic view of the crushing device provided by an embodiment of the present application is shown in the figure;

[0025] Figure 2 The structure schematic view of the crushing device provided by an embodiment of the present application is shown in the figure; Figure 1 The structure schematic view of the crushing device provided by an embodiment of the present application is shown in the figure;

[0026] Figure 3 The structure schematic view of the crushing device provided by an embodiment of the present application is shown in the figure; Figure 2 The structure schematic view of the crushing device provided by an embodiment of the present application is shown in the figure;

[0027] Figure 4 The structure schematic view of the crushing device provided by an embodiment of the present application is shown in the figure; Figure 1 The structure schematic view of the crushing device provided by an embodiment of the present application is shown in the figure;

[0028] Figure 5 The structure schematic view of the crushing device provided by an embodiment of the present application is shown in the figure. Figure 1

[0029] Label explanation:

[0030] 10, crushing device;

[0031] ​100, crushing device; 110, base; 120, rotary drum; 121, crushing cavity; 122, feeding port; 123, discharging port; 124, rotating shaft; 130, wear-resistant layer; 140, guide hopper; 150, control valve; 141, first space; 142, second space; 160, gas outlet pipe; 170, partition plate; 180, baffle; 200, separating device; 210, separator; 220, first collecting tank; 230, second rapping device; 300, collecting device; 310, collecting box; 311, inner cavity; 312, feeding port; 313, discharging port; 314, gas outlet; 320, dust collector; 330, second collecting tank; 400, guiding device; 500, feeding device; 510, feeding support; 520, feeding conveying line; 530, feeding hopper; 540, dryer; 600, filtering device; 610, filter; 620, collecting box; 710, flexible connecting pipe; 720, first rapping device; 730, guide pipe; 740, third rapping device. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0033] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, and are only used to facilitate the description of the present application and simplify the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0034] As Figure 1As shown, an embodiment of the present application provides a crushing device 10, which comprises a crushing device 100, a separating device 200, a collecting device 300 and a guiding device 400. The crushing device 100, the separating device 200 and the collecting device 300 are arranged in sequence. The crushing device 100 is capable of crushing the material. The separating device 200 is capable of obtaining the material processed by the crushing device 100 and separating the material with a particle size greater than the first size from the material with a particle size below the first size. The collecting device 300 is capable of collecting the material with a particle size below the first size. The guiding device 400 is used to guide the material to be conveyed along the crushing device 100, the separating device 200 and the collecting device 300, so as to ensure that the collecting device 300 can collect the qualified powder.

[0035] It should be noted that in the embodiment, the material is ceramic tailings. Meanwhile, the first size is 10 μm, i.e. the separating device 200 can separate the powder below 10 μm from the material greater than 10 μm, and the collecting device 300 can collect the powder below 10 μm separated by the separating device 200.

[0036] By using the crushing device, the crushing device 100 can crush the ceramic tailings, and the guiding device 400 can guide the powder generated after the ceramic is crushed to pass through the separating device 200 and the collecting device 300 in sequence. The separating device 200 obtains the material processed by the crushing device 100, and then separates the material according to the particle size. The collecting device 300 collects the powder with a particle size below the first size. Compared with the existing manual crushing, the crushing device effectively improves the crushing efficiency and saves time and effort. Meanwhile, the crushing is performed in a closed device, which can reduce the amount of dust in the workshop and ensure the health of the workers.

[0037] Further, the guiding device 400 is a fan, which is used to form an airflow flowing along the crushing device 100, the separating device 200 and the collecting device 300, so as to drive the crushed material and the powder after the crushing device 100 is crushed, so that the crushed material and the powder are conveyed along the crushing device 100, the separating device 200 and the collecting device 300.

[0038] In an embodiment, the crushing device further comprises a feeding device 500, which is arranged upstream of the crushing device 100 and is used to convey the material to the crushing device 100, so as to realize automatic feeding. Further, the feeding device 500 comprises a feeding support 510, a feeding conveying line 520 and a feeding hopper 530. The feeding conveying line 520 and the feeding hopper 530 are arranged on the feeding support 510, and the feeding hopper 530 is arranged corresponding to the feeding end of the feeding conveying line 520, so that the material is thrown into the feeding conveying line 520 through the feeding hopper 530, and then conveyed to the crushing device 100 through the feeding conveying line 520.

[0039] In one embodiment, the feeding device 500 further comprises a dryer 540, which is arranged corresponding to the feeding conveying line 520 and downstream of the feeding hopper 530. The dryer 540 is used to dry the material conveyed by the feeding conveying line 520 to the crushing device 100, so as to reduce the moisture content of the material and improve the crushing efficiency.

[0040] It should be explained that, in the present embodiment, the material is ceramic tailings. The lower the moisture content of the ceramic tailings, the easier it is to be crushed. Therefore, the dryer 540 can effectively improve the crushing efficiency.

[0041] Please refer to Figure 2 and Figure 3 In one embodiment, the crushing device 100 comprises a base 110 and a rotating drum 120, which is rotatably arranged on the base 110 about its own axis. The rotating drum 120 comprises a crushing cavity 121, and a feeding inlet 122 and a discharging outlet 123 which are in communication with the crushing cavity 121. The material conveyed by the feeding device 500 enters the crushing cavity 121 through the feeding inlet 122. Then, the rotating drum 120 rotates, and the material in the crushing cavity 121 will be thrown, collide with each other, etc., so as to realize the crushing of the material and produce crushed material and powder.

[0042] It should be noted that, as mentioned above, the material is ceramic tailings, which has high hardness and is a brittle material. Therefore, it can be easily crushed during the throwing and collision process. Similarly, it can be known that, in other embodiments, the material can also be other materials with high hardness and brittle texture.

[0043] Further, the crushing device 100 further comprises a wear-resistant layer 130, which is laid on the inner wall of the crushing cavity 121. The wear-resistant layer 130 can avoid the material from directly contacting the inner wall of the crushing cavity 121, so as to avoid damaging the inner wall of the crushing cavity 121. In addition, it should be noted that the inner wall of the crushing cavity 121 is made of metal, and the wear-resistant layer 130 is made of plastic, such as nylon. The wear-resistant layer 130 can also avoid the material from rubbing and colliding with the metal inner wall, so as to avoid generating metal impurities.

[0044] As a preferred, the discharging outlet 123 is located at one end of the rotating drum 120 along its axial direction, and there is a gap between the discharging outlet 123 and the inner side wall of the crushing cavity 121, so as to avoid the material in the crushing cavity 121 from being directly discharged through the discharging outlet 123 during the tumbling process. It should be noted that, as mentioned above, the guiding device 400 can form an airflow flowing along the crushing device 100, the separating device 200 and the collecting device 300. The crushed material and powder with small particle size can be discharged from the discharging outlet 123 along with the airflow, while the material with large size will remain in the crushing cavity 121 for further crushing.

[0045] It should be explained that in the embodiment, the powder with a particle size less than 50 μm can be discharged from the discharge port 123 along with the airflow, and the material with a particle size greater than 50 μm will continue to be crushed in the crushing cavity 121.

[0046] Specifically Figure 3 In the illustrated embodiment, the inlet port 122 and the discharge port 123 are located at the two ends of the rotary drum 120 along the axial direction thereof, so as to prolong the movement path of the material in the crushing cavity 121 and ensure the crushing effect. Meanwhile, the inlet port 122 is also spaced apart from the inner side wall of the crushing cavity 121, so as to avoid the material from blocking the inlet port 122 and affecting the feeding.

[0047] It should be explained that the rotary drum 120 is also formed with a rotary shaft 124 at the two ends thereof along the axial direction, the rotary shaft 124 is rotatably supported on the base 110, so as to realize the rotatable arrangement of the rotary drum 120, the rotary shaft 124 is hollow and communicates with the inlet port 122 or the discharge port 123.

[0048] In one embodiment, the crushing device 100 further comprises a guide hopper 140, the guide hopper 140 is rotatably connected with the rotary shaft 124 of the rotary drum 120, and the guide hopper 140 communicates with the inlet port 122, so as to facilitate the material to enter the crushing cavity 121.

[0049] Further, the guide hopper 140 is provided with a control valve 150, the control valve 150 can divide the internal space of the guide hopper 140 into a first space 141 and a second space 142, the inlet of the guide hopper 140 communicates with the first space 141, and the inlet port 122 of the rotary drum 120 communicates with the second space 142. The control valve 150 can connect or cut off the first space 141 and the second space 142. When the control valve 150 connects the first space 141 and the second space 142, the material can enter the crushing cavity 121 through the guide hopper 140, and when the control valve 150 cuts off the first space 141 and the second space 142, the material will be temporarily stored in the first space 141 and cannot enter the second space 142 and the crushing cavity 121. Of course, when the control valve 150 cuts off the first space 141 and the second space 142, the feeding of the feeding device 500 can also be paused to avoid excessive accumulation of the material in the first space 141.

[0050] In one embodiment, the crushing device 100 further comprises an air inlet mechanism, the air inlet mechanism partially penetrates the guide hopper 140 and extends into the second space 142, so as to input gas into the crushing cavity 121. In this way, during the crushing process, the first space 141 and the second space 142 can be cut off by the control valve 150, and then nitrogen or other protective gas can be input into the crushing cavity 121 through the air inlet mechanism, so as to avoid oxidation of the material during the crushing process. Of course, in other embodiments, if it is necessary to improve the oxidation effect, oxygen can also be input into the crushing cavity 121 through the air inlet mechanism.

[0051] Further, the air inlet mechanism comprises an air outlet pipe 160, which penetrates the guide hopper 140 and extends into the top of the crushing cavity 121 through the second space 142 and the inlet 122, and the air outlet pipe 160 is capable of spraying air towards the bottom of the crushing cavity 121. In this way, the air can be input into the crushing cavity 121, and the speed of the material falling from a high place can be increased to some extent, thereby improving the crushing efficiency.

[0052] It can be understood that the position of the air outlet pipe 160 penetrating the guide hopper 140 is sealed with the guide hopper 140 to avoid external air entering the crushing cavity 121. In addition, the end of the air outlet pipe 160 away from the rotary drum 120 is also connected with the air source.

[0053] As shown in Figure 3 , the part of the air outlet pipe 160 located at the top of the crushing cavity 121 is provided with a plurality of air outlet holes, and the plurality of air outlet holes are arranged towards the bottom of the crushing cavity 121. It can be seen that the air discharged through the air outlet pipe 160 is relatively dispersed, and although the air flow along the crushing device 100, the separation device 200 and the collection device 300 can be formed, in order to ensure that the crushed material and the powder can be transported with the air flow, the guide device 400 is preferably provided.

[0054] In an embodiment, the inner side wall of the crushing cavity 121 is further provided with a partition plate 170, the partition plate 170 extends along the axial direction of the rotary drum 120, and the partition plate 170 protrudes from the wear-resistant layer 130. During the rotation of the rotary drum 120, the partition plate 170 can carry the material on the surface of the wear-resistant layer 130 to a high place, and then the material falls under the action of gravity. In this way, the falling height of the material can be increased, and the crushing efficiency can be further improved. In other embodiments, the partition plate 170 can also be formed on the surface of the wear-resistant layer 130.

[0055] Further, a plurality of through holes are formed in the partition plate 170 along the thickness direction of the partition plate 170. In this way, the partition plate 170 can carry the material with a larger size to a high place, and the falling height of the material with a larger size can be increased. It can be understood that the length direction of the partition plate 170 is the axial direction of the rotary drum 120, and the thickness direction of the partition plate 170 is tangent to the circumferential direction of the rotary drum 120.

[0056] As shown in Figure 3 , further, the end of the partition plate 170 away from the inner side wall of the crushing cavity 121 is formed with a baffle 180, and the baffle 180 is arranged at an angle with the partition plate 170, and the included angle between the baffle 180 and the partition plate 170 is an obtuse angle. The baffle 180 and the partition plate 170 jointly act to carry the material to the top of the crushing cavity 121, increase the falling height of the material, and improve the crushing efficiency.

[0057] It should be noted that in the embodiment, the partition plate 170 extends from the wear-resistant layer 130 in the radial direction of the rotary drum 120, and therefore a baffle 180 is arranged at one end of the partition plate 170 to ensure that the material can move to the top of the crushing cavity 121 and then fall. In other embodiments, the partition plate 170 can be arranged to be inclined relative to the radial direction of the rotary drum 120, as long as it can ensure that the material can move to the top of the crushing cavity 121.

[0058] At the same time, it can be understood that, in order to further improve the crushing efficiency, a plurality of partition plates 170 can be arranged in the crushing cavity 121 along the circumferential direction of the rotary drum 120.

[0059] In one embodiment, the crushing device further comprises a filtering device 600, which is arranged between the crushing device 100 and the separating device 200, and which communicates with the discharge port 123 and can filter and collect material with a particle size greater than a second size.

[0060] It should be noted that the filtering device 600 is arranged before the separating device 200, and the filtering device 600 can filter larger-sized material, so the second size is greater than the first size. In the embodiment, the second size is 30 μm. That is, the filtering device 600 can filter and collect material with a particle size greater than 30 μm, and the powder with a particle size less than 30 μm will continue to be conveyed to the separating device 200.

[0061] Further, the filtering device 600 comprises a filter 610 and a collection box 620. The filter 610 is connected with the crushing device 100 and the separating device 200 at the same time, and is used to filter material with a particle size greater than the second size. The collection box 620 is arranged at the filter 610, and is used to collect material with a particle size greater than the second size. After the collection is completed, the collection box 620 can be taken out, and the collected material can be poured back into the crushing cavity 121 through the material guide hopper 140 to be crushed again.

[0062] In one embodiment, the crushing device further comprises a flexible connecting pipe 710 connected between the filtering device 600 and the separating device 200, for the material filtered by the filtering device 600 to pass through, so as to realize the separation operation of the material into the separating device 200. In addition, the flexible connecting pipe 710 is used for connection, which can avoid the transmission of vibration, so as to avoid the mutual influence between the separating device 200 and the filtering device 600.

[0063] Please refer to Figure 4 Further, the crushing device further comprises a first rapping device 720 arranged at the flexible connecting pipe 710, which is used to avoid the accumulation of powder in the flexible connecting pipe 710. Figure 4In the shown embodiment, the first rapping device 720 is arranged at the connection between the flexible connecting pipe 710 and the separation device 200.

[0064] Please refer to Figure 4 In one embodiment, the separation device 200 comprises a separator 210 and a first collecting tank 220, the separator 210 is connected with the flexible connecting pipe 710, and the separator 210 is capable of separating the material with a particle size greater than the first size from the material with a particle size below the first size, the first collecting tank 220 is arranged corresponding to the separator 210, and the first collecting tank 220 is capable of collecting the material with a particle size greater than the first size, which can be poured back into the crushing chamber 121 for crushing after collection.

[0065] Further, the separation device 200 further comprises a second rapping device 230, the second rapping device 230 is arranged at the separator 210, and is used for avoiding the accumulation of the powder in the separator 210. Specifically, the separator 210 is a cyclone separator 210.

[0066] In one embodiment, the collecting device 300 comprises a collecting box 310, a dust collector 320 and a second collecting tank 330, the collecting box 310 comprises an inner cavity 311, and a feeding port 312, a discharging port 313 and an exhaust port 314 which are in communication with the inner cavity 311. The feeding port 312 is in communication with the separation device 200, and is used for feeding the material with a particle size below the first size into the inner cavity 311, the dust collector 320 is arranged in the inner cavity 311, and the dust collector 320 is capable of filtering the material with a particle size below the first size, the second collecting tank 330 is arranged corresponding to the discharging port 313, and is used for collecting the material with a particle size below the first size, and the guiding device 400 is arranged in the collecting box 310, and is in communication with the exhaust port 314, so as to form an air flow path along the crushing device 100, the filtering device 600, the separation device 200 and the collecting device 300.

[0067] It should be noted that the collecting box 310 and the separator 210 are also connected through the material guide pipe 730, one end of the material guide pipe 730 is in communication with the outlet at the top of the separator 210, and the other end is in communication with the feeding port 312 of the collecting box 310. In addition, the fan is capable of extracting the gas in the inner cavity 311, and the air flow path formed by the fan is specifically: the crushing chamber 121, the filter 610, the flexible connecting pipe 710, the separator 210, the material guide pipe 730 and the inner cavity 311, and the gas at the crushing chamber 121 is provided through the air inlet mechanism, so as to ensure that the powder is always in a protective atmosphere during the preparation process.

[0068] As preferred, the dust collector 320 comprises filter bags arranged at the inlet 312 and pulse heads arranged corresponding to the filter bags, the pulse heads cooperating with the filter bags to collect the material with the particle size between the third size and the first size, i.e. the finished powder, and the material with the particle size less than the third size is discharged from the exhaust port 314 together with the gas, and the collected finished powder is discharged into the second collecting tank 330 through the discharge port 313, so as to realize the preparation of the finished product.

[0069] It should be explained that the third size is 0.3 μm, and the third size is set according to the filtering size of the filter bag. In other embodiments, if other specifications of filter bags are used, the third size can also be other. At the same time, it is also not excluded that the material with the particle size less than the third size enters the second collecting tank 330.

[0070] In an embodiment, the crushing device further comprises a third rapping device 740 arranged at the material guide pipe 730 to avoid the accumulation of the powder in the material guide pipe 730.

[0071] It should be noted that the first collecting tank 220 and the second collecting tank 330 are respectively connected with the separator 210 and the collecting box 310 through quick release structures. In addition, the bottom of the first collecting tank 220 and the second collecting tank 330 is provided with a foot wheel to facilitate the transfer of the collected material.

[0072] In order to facilitate the understanding of the technical scheme of the present application, hereinafter the technical scheme of the present application will be described in detail in combination with Figure 1 The working process of the crushing device in the above embodiment will be described:

[0073] The worker puts the ceramic tailings into the feeding hopper 530, and the feeding conveying line 520 conveys the tailings to the material guide hopper 140, and the tailings can be dried by the drying machine 540 during the conveying process. At this time, the control valve 150 is turned on to connect the first space 141 and the second space 142, and the tailings enter the crushing cavity 121 through the material guide hopper 140, and then the control valve 150 is cut off to connect the first space 141 and the second space 142, and the gas inlet mechanism inputs nitrogen into the crushing cavity 121.

[0074] Next, the fan is started, and the rotary drum 120 is driven to rotate by the driving mechanism, and the tailings in the crushing cavity 121 begin to be crushed. The powder with a particle size of less than 50 μm generated by crushing is discharged from the discharge port 123 into the filter 610 along with the airflow. The filter 610 filters the powder with a particle size of greater than 30 μm, and the powder with a particle size of greater than 30 μm is introduced into the collection box 620, and the powder with a particle size of less than 30 μm is introduced into the separator 210 along the flexible connecting pipe 710. The separator 210 separates and processes the powder, and the powder with a particle size of greater than 10 μm is transported into the first collection tank 220, and the powder with a particle size of less than 10 μm is introduced into the inner cavity 311 of the collection box 310 through the guide pipe 730. The pulse head and the filter bag cooperate to obtain the powder with a particle size of between 0.3 and 10 μm, and the powder is collected by the second collection tank 330, and the powder with a particle size of less than 0.3 μm is discharged from the exhaust port 314 along with the airflow.

[0075] The powder collected in the collection box 620 and the first collection tank 220 can be re-introduced into the crushing cavity 121 for re-crushing.

[0076] The crushing device has at least the following advantages:

[0077] 1. The ceramic tailings can be crushed, saving time and effort, and the crushing efficiency is high;

[0078] 2. It will not produce more dust, and ensure the health of the workers;

[0079] 3. The material is dried by the dryer 540 during the material loading process, so as to improve the crushing efficiency;

[0080] 4. The whole process is in a protective atmosphere, which can effectively avoid the oxidation of the material;

[0081] 5. The wear-resistant layer 130 is arranged in the crushing cavity 121, which can avoid the generation of metal impurities and ensure the purity of the powder;

[0082] 6. The crushing cavity 121 is provided with a partition plate 170, which can increase the falling height of the material and improve the crushing efficiency.

[0083] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to the embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A crushing device, characterized in that The application relates to a crushing device, a separation device, a collecting device and a guiding device. The crushing device comprises a rotating drum, a wear-resistant layer, a guide hopper and an air inlet mechanism, the rotating drum is rotatably arranged around an axis, and the rotating drum comprises a crushing cavity, the wear-resistant layer is arranged on the inner wall of the crushing cavity, the rotating drum is provided with an inlet opening which is communicated with the crushing cavity, the guide hopper is rotatably connected with the rotating drum, and a control valve is arranged in the guide hopper, the control valve can divide the inner space of the guide hopper into a first space and a second space, the inlet of the guide hopper is communicated with the first space, the inlet opening is communicated with the second space, the control valve can connect or separate the first space and the second space, the air inlet mechanism partially penetrates the guide hopper and extends into the second space, the inner side wall of the crushing cavity is further provided with a partition plate, the partition plate extends along the axial direction of the rotating drum, and the partition plate protrudes from the wear-resistant layer, and an end of the partition plate away from the inner side wall of the crushing cavity is further provided with a baffle, the baffle is arranged at an angle with the partition plate, and a plurality of through holes are formed in the thickness direction of the partition plate. The separation device is arranged downstream of the crushing device, the separation device comprises a separator and a first collecting tank, the separator can obtain the material treated by the crushing device, and the material with a particle size greater than a first size and the material with a particle size less than the first size are separated, the first collecting tank is arranged corresponding to the separator, and the first collecting tank can collect the material with a particle size greater than the first size. The collecting device is arranged downstream of the separation device, and the collecting device can collect the material with a particle size less than the first size. The guiding device is arranged in the collecting device and used for guiding the material to be conveyed along the crushing device, the separation device and the collecting device.

2. The crushing device according to claim 1, characterized in that The crushing device further comprises a feeding device, the feeding device comprises a feeding conveying line and a dryer, the feeding conveying line is arranged upstream of the crushing device, and the dryer is arranged corresponding to the feeding conveying line and used for drying the material conveyed by the feeding conveying line to the crushing device.

3. The crushing device according to claim 1, characterized in that The rotating drum is further provided with a discharge opening which is communicated with the crushing cavity, the crushing device further comprises a filtering device, the filtering device is arranged between the crushing device and the separation device, the filtering device is communicated with the discharge opening, and the filtering device can filter and collect the material with a particle size greater than a second size.

4. The crushing device according to claim 3, characterized in that The crushing device further comprises a flexible connecting pipe, the flexible connecting pipe is connected between the filtering device and the separation device.

5. The crushing device according to claim 1, characterized in that The air inlet mechanism comprises an air outlet pipe, the air outlet pipe penetrates the second space and the inlet opening and extends into the top of the crushing cavity, and the air outlet pipe can spray gas towards the bottom of the crushing cavity.

6. The crushing arrangement according to any one of claims 1 - 4, characterized in that, The collecting device comprises a collecting box, a dust remover and a second collecting tank, the collecting box comprises an inner cavity, an inlet opening, a discharge opening and an exhaust opening which are communicated with the inner cavity, the inlet opening is communicated with the separation device, the dust remover is arranged in the inner cavity, the second collecting tank is arranged corresponding to the discharge opening, the guiding device is arranged in the collecting box and communicated with the exhaust opening.

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