A phosphate rock cone crusher and a crushing method

Abstract

The present invention discloses a phosphate rock cone crusher and a crushing method, which relate to the technical field of crushers. The phosphate rock cone crusher includes a frame, a fixed cone is arranged inside the frame, a moving cone is swingably arranged inside the fixed cone. The moving cone includes a main shaft and a cone body arranged on the side wall of the main shaft. A crushing cavity is formed between the cone body and the fixed cone. A cleaning tank is arranged at the top of the frame, a discharge port is arranged on the cleaning tank, and a closing and opening mechanism is arranged at the discharge port. The washed ore is discharged from the discharge port and falls into the crushing cavity. By arranging a cleaning tank at the top of the cone crusher to wash the ore, the sediment carried by the ore can be removed. Compared with the prior art, the present invention adds a cleaning tank at the feeding end of the cone crusher, realizing the function of removing mud from the ore, and the cone crusher is not prone to the phenomenon of mud sticking during use.

Description

Technical Field

[0001] The present invention relates to the technical field of crushers, and in particular, to a phosphate rock cone crusher and a crushing method. Background Art

[0002] A cone crusher is a kind of crushing machinery suitable for raw materials in the metallurgical, construction, road construction, chemical and silicate industries. According to different crushing principles and different particle sizes of products, it is divided into many models. Crushers are widely used in many departments such as mines, smelting, building materials, highways, railways, water conservancy and chemical industries. Cone crushers have a large crushing ratio, high efficiency, low energy consumption, and uniform product particle size, and are suitable for medium crushing and fine crushing of various ores. For example, in the processing and production of phosphate rock, it is necessary to complete the crushing of phosphate rock by a cone crusher.

[0003] Currently, a Chinese patent with the publication number CN205216929U discloses a cone crusher, which includes a frame. A fixed cone is arranged inside the frame. Among them, a moving cone is supported in the space inside the fixed cone through a spherical bearing, and the bottom of the main shaft of the moving cone is connected to an eccentric bushing. The eccentric bushing rotates under the drive of a transmission mechanism powered by an electric motor, thereby driving the moving cone to perform a swinging motion. At this time, the distance between the moving cone and the fixed cone will periodically increase and decrease to achieve the crushing of materials. However, in the crushing operation of phosphate rock, due to factors such as the quality of phosphate rock and the primary crushing process, the ore entering the cone crusher may carry sediment, and the sediment is easy to adhere to the crushing cavity, resulting in abnormal discharge, and even possible shutdown. The above-mentioned cone crusher does not have the function of removing mud from phosphate rock at the feeding end, resulting in frequent occurrence of mud sticking in the cone crusher. Summary of the Invention

[0004] The first object of the present invention is to overcome the deficiencies of the prior art and provide a phosphate rock cone crusher and a crushing method.

[0005] The first object of the present invention is achieved by the following technical solutions:

[0006] The ore crusher of claim 1, wherein the movable cone is provided inside the frame, and the movable cone is swingably provided inside the fixed cone, the movable cone comprising a main shaft and a cone arranged on the side wall of the main shaft, a crushing chamber is formed between the cone and the fixed cone, a cleaning trough is provided on the top of the frame, a discharge port is provided on the cleaning trough, and an opening and closing mechanism is provided at the discharge port, so that the cleaned ore is discharged from the discharge port and falls into the crushing chamber; the cleaning trough is adapted to separate the cleaning liquid from the ore by tilting, and the cleaned ore is discharged from the discharge port at the end portion of the high side of the cleaning trough; the cleaning trough comprises a cleaning disk arranged on the top of the movable cone, and a plurality of discharge ports are circumferentially provided on the side wall of the cleaning disk. As the movable cone swings, the cleaning disk swings synchronously and drives the cleaning liquid inside it to swing relatively, and the opening and closing mechanism is adapted to open only the discharge port at the end portion of the high side of the cleaning disk in a single action.

[0007] Preferably, a hot air device is further provided on the top of the frame, and the hot air device is located below the cleaning tank.

[0008] Preferably, a conical guide ring is engaged on the top of the cleaning disc, and the diameter of the conical guide ring gradually decreases from top to bottom.

[0009] Preferably, the opening and closing mechanism includes a plurality of opening and closing parts distributed along the circumferential direction, and the plurality of opening and closing parts correspond one-to-one to the plurality of discharge ports.

[0010] Preferably, the opening and closing mechanism includes a sealing plate slidably adapted on the side wall of the cleaning tray, the sealing plate being able to slide to be opposite to the discharge port and to seal the discharge port; a liquid outlet channel is provided inside the dish body of the cleaning tray, a liquid outlet hole connected to the liquid outlet channel is provided on the inner wall of the cleaning tray, an opening and closing shaft is elastically provided in the liquid outlet channel, and in the natural state of the opening and closing shaft, the opening and closing shaft is sealed and stuck in the liquid outlet hole, and the opening and closing shaft is adapted to be able to be elastic under the action of water pressure, thereby connecting the liquid outlet hole and the liquid outlet channel; the outer surface of the cleaning tray A connecting hole connected to the liquid outlet channel is provided on the wall, and a locking hole is correspondingly provided on the sealing plate. When the opening and closing shaft bounces, the end of the opening and closing shaft away from the liquid outlet hole passes through the connecting hole and extends into the locking hole; the opening and closing mechanism also includes an ejection ring that can be ejected at the top of the main shaft, and a plurality of connecting rods are provided on the ejection ring. The plurality of connecting rods correspond one-to-one to the plurality of sealing plates, and a return spring is connected to the sealing plate. The connecting rod and the sealing plate are connected by a snap mechanism, and the snap on the connecting rod can be elastically arranged laterally.

[0011] Preferably, the plugging plate extends towards the ejecting ring side to form a bent portion, the bent portion is located below the cleaning tray, and a plurality of air bags are arranged on the bottom surface of the cleaning tray. The plurality of air bags correspond to the plurality of plugging plates one by one. The air bags are located above the bent portion, and the air outlet ends of the air bags communicate upwards with the inner cavity of the cleaning tray.

[0012] The second object of the present invention is to overcome the deficiencies of the prior art and provide a method for cone crushing of phosphate ore.

[0013] The second object of the present invention is achieved by the following technical solutions:

[0014] A method for cone crushing of phosphate ore, including the above-mentioned phosphate ore cone crusher, includes the following steps:

[0015] S1. Put the ore to be crushed into the cleaning tank.

[0016] S2. Introduce a cleaning liquid into the cleaning tank, and keep the opening and closing mechanism in a closed state for the discharge port during this period.

[0017] S3. Control the opening and closing mechanism to open the discharge port, so that the cleaned ore is discharged from the discharge port and falls into the crushing cavity to complete the crushing.

[0018] The beneficial effects of the present invention are:

[0019] 1. By arranging a cleaning tank at the top of the cone crusher to clean the ore, the sediment carried by the ore can be removed. Compared with the prior art, the present invention adds a cleaning tank at the feeding end of the cone crusher, realizing the function of removing mud from the ore, and the cone crusher is not prone to the phenomenon of mud sticking during use.

[0020] 2. By using a hot air device to blow-dry the ore after cleaning, the moisture content of the ore entering the crushing cavity is reduced, further preventing the generation of the phenomenon of mud sticking.

[0021] 3. The cleaning tank is an inclined cleaning frame. Under the action of gravity, the ore entering the cleaning frame will abut against the separation screen, and the cleaning liquid will pass through the separation screen, thereby realizing the cleaning of the ore and the automatic separation of the ore from the cleaning liquid.

[0022] 4. The cleaning tank is a cleaning disk arranged at the top of the moving cone. During the process of the moving cone swinging to crush the ore in the crushing cavity, the cleaning disk will swing driven by the moving cone. At this time, the cleaning liquid in the cleaning disk will also swing under the action of inertia and centrifugal force, so as to achieve a better cleaning effect on the ore inside it. In addition, since the cleaning liquid is swinging, part of the ore in the cleaning disk will be exposed from the cleaning liquid, that is, the ore and the cleaning liquid will be automatically separated. At this time, control the corresponding discharge port to open, and the ore will be discharged smoothly without leakage of the cleaning liquid easily occurring. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 FIG. is a schematic structural diagram of the cleaning tank as a cleaning frame;

[0024] Figure 2 FIG. is a schematic structural diagram of the cleaning tank as a cleaning disk (the liquid level state of the cleaning liquid is shown in the inner cavity of the cleaning disk in the form of a thick solid line);

[0025] Figure 3 is Figure 2 enlarged view of part A of.

[0026] Reference numerals: 1, frame; 2, fixed cone; 3, moving cone; 4, main shaft; 5, cone body; 6, crushing cavity; 7, cleaning tank; 8, discharge port; 9, opening and closing mechanism; 10, cleaning frame; 11, partition screen; 12, cleaning disk; 13, conical guide ring; 15, sealing plate; 16, liquid outlet channel; 17, liquid outlet hole; 18, opening and closing shaft; 19, connecting hole; 20, locking hole; 21, ejecting ring; 22, connecting rod; 23, return spring; 24, buckle mechanism; 25, bent part; 26, airbag; 27, elastic seal; 28, water pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The technical solutions of the present invention will be described clearly and completely below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present invention. Embodiment

[0028] Figures 1 to 3As shown in the figure, a phosphate rock cone crusher includes a frame 1 that is basically cylindrical. A fixed cone 2 is provided on the inner wall of the frame 1, and a moving cone 3 is supported within the fixed cone 2 by a spherical bearing. Similarly to the prior art, the moving cone 3 includes a main shaft 4 and a cone 5 provided on the side wall of the main shaft 4. The cone 5 faces the fixed cone 2, and a crushing chamber 6 is formed between the two. Among them, the bottom of the main shaft 4 is also adaptively connected to an eccentric bushing, and the eccentric bushing is driven to rotate by a transmission mechanism attached to the frame 1, thereby driving the entire moving cone 3 to swing. It can be imagined that at this time, the distance between the moving cone 3 and the fixed cone 2 will periodically increase and decrease to achieve the crushing of materials.

[0029] A cleaning tank 7 is also provided at the top feed inlet of the frame 1 to receive the ore to be crushed through the cleaning tank 7. For example, a water pipe 28 can also be provided at the top of the frame 1. The water for cleaning can flow into the cleaning tank 7 from top to bottom and contact the ore inside. Under the washing of the water flow, the sediment wrapped on the ore will be cleaned. A discharge port 8 is correspondingly provided on the cleaning tank 7, and the washed ore can be discharged through the discharge port 8, so that the ore can fall into the crushing chamber 6 to complete the crushing. In order to achieve the controllability of this discharging, an opening and closing mechanism 9 is provided at the discharge port 8. Especially during the cleaning process of the ore, the opening and closing mechanism 9 will close the discharge port 8 to prevent the water from leaking downward into the crushing chamber 6.

[0030] For example, a hot air device (not shown in the figure) can also be provided below the cleaning tank 7. The hot air device can blow hot air on the ore discharged from the discharge port 8 to achieve a drying effect, so as to control the moisture content of the ore entering the crushing chamber 6.

[0031] In some embodiments, the cleaning tank 7 includes an inclined cleaning frame 10. The cleaning frame 10 can be installed in a manner of being fixedly connected to the frame 1, or an ejector such as a cylinder can be provided at the end of the cleaning frame 10, and the inclination angle of the cleaning frame 10 can be adjusted by changing the stroke of the ejector. In either case, the ore and the cleaning liquid entering the cleaning frame 10 will move from high to low under the action of gravity, and a separation screen 11 is also provided in the cleaning frame 10. In this way, the ore will be blocked by the separation screen 11, and the cleaning liquid will pass through the separation screen 11, thereby realizing the automatic separation of the ore and the separation screen 11.

[0032] The following will schematically elaborate on the operation mode of this disclosure:

[0033] The first method: Put the ore into the cleaning frame 10, and then turn on the water pipe 28. The water for cleaning will fall into the cleaning frame 10 to complete the cleaning of this part of the ore. Subsequently, control the opening and closing mechanism 9 to open the discharge port 8, and the cleaned ore will be discharged downward from the discharge port 8. Then, control the opening and closing mechanism 9 to close the discharge port 8 again, put in a new batch of ore, and repeat the above process to continuously feed the ore after being cleaned by the cylindrical crusher.

[0034] The second method: It is also possible to continuously put ore into the cleaning frame 10, and realize the cleaning of the ore by periodically supplying the cleaning liquid and periodically opening the discharge port 8.

[0035] Reference Figure 1 , the discharge port 8 is preferably opened on the bottom surface of the end of the cleaning frame 10 at the lower side, especially adapted to be arranged adjacent to the separation screen 11. This example is particularly applicable to the second ore cleaning mode described above because the opening position of the discharge port 8 ensures that the discharged ore has been cleaned, and the ore in the cleaning frame 10 will not be completely discharged at the same time, and the released ore provides the space required for continuous feeding in the cleaning frame 10.

[0036] A pipe can also be connected to the tail end of the cleaning frame 10 (i.e., the end at the lower position side), and the sewage is discharged from the cleaning frame 10 through the pipe.

[0037] Such as Figure 2 , Figure 3 As shown, as another solution, the cleaning tank 7 can include a cleaning disk 12 provided at the top of the moving cone 3. A number of discharge ports 8 are circumferentially arranged on the side wall of the cleaning disk 12, and as the moving cone 3 swings, the cleaning disk 12 will swing synchronously. It can be imagined that during the swinging process of the cleaning disk 12, since the cleaning liquid is lighter in mass, the cleaning liquid will also swing relatively, while the ore in the cleaning disk 12 will remain relatively stationary or move slightly. Thus, the cleaning liquid and the ore have a similar mutually stirring motion state, and further enable the cleaning liquid to have a better cleaning effect on the ore.

[0038] Moreover, as the cleaning disk 12 swings, different discharge ports 8 will be in an alternating motion state of lifting and falling. For example, Figure 2 As shown in, when the moving cone 3 swings to the left direction in the figure to crush the ore on that side, the left side of the cleaning disk 12 will be lifted synchronously. The discharge port 8 on the left side will be at the highest position relative to other discharge ports 8, and the cleaning liquid in the cleaning disk 12 will be misaligned with the discharge port 8 on the left side, or it can be understood that the discharge port 8 on the left side will emerge from the water surface. At this time, control the opening and closing mechanism 9 to open the discharge port 8 on the left side, and the ore after being cleaned will be discharged from this discharge port 8, and the water is not likely to leak.

[0039] For example, the opening and closing mechanism 9 may include a number of opening and closing members (not shown in the figure) distributed circumferentially, and the number of opening and closing members corresponds to and is adapted to the number of discharge ports 8 one by one. In a possible example, the opening and closing member may be an electrically controlled valve, such as a butterfly valve, a gate valve, etc. At this time, a height sensor or an inclination angle sensor may also be adapted on the opening and closing member, and the monitoring by the sensor is used to determine whether the corresponding discharge port 8 is in the highest position, so as to realize the opening and closing action of the electrically controlled automatic discharge port 8.

[0040] In a preferred example, the opening and closing mechanism 9 may include a sealing plate 15 slidably adapted to the side wall of the cleaning tray 12. It can be imagined that if the sealing plate 15 is slid to face the discharge port 8, the sealing plate 15 can block the discharge port 8, thereby preventing the leakage of the material in the cleaning tray 12. An outlet channel 16 is further provided inside the tray body of the cleaning tray 12. The term "inside the tray body" here means that the inside of the tray body has an outlet channel 16 in the form of a "sandwich", rather than the cavity part formed inside the tray body for accommodating materials.

[0041] More specifically, an opening and closing shaft 18 is arranged in the outlet channel 16 by spring bouncing. In the natural state of the spring, the spring acts on the opening and closing shaft 18 with an elastic force, thereby driving the opening and closing shaft 18 to be hermetically inserted into the outlet hole 17 opened on the inner wall of the cleaning tray 12. As the water continuously surges into the cleaning tray 12, under the action of the water pressure, the opening and closing shaft 18 will bounce and open the corresponding outlet hole 17. At this time, the cleaning liquid can flow into the outlet channel 16 through the outlet hole 17. For example, the outlet end of the outlet channel 16 can be connected to a pipeline, and the cleaning liquid is discharged to the outside of the frame 1 through the pipeline.

[0042] In addition, a connection hole 19 communicating with the outlet channel 16 is also opened on the outer wall of the cleaning tray 12, and a locking hole 20 is correspondingly arranged on the sealing plate 15. Looking from the cross-section, the outlet hole 17, the opening and closing shaft 18, the connection hole 19, and the locking hole 20 are at the same height position. In this way, after the opening and closing shaft 18 bounces, the end of the opening and closing shaft 18 away from the outlet hole 17 will pass through the connection hole 19 and extend into the locking hole 20. It can be understood that during the drainage of the outlet hole 17, it means that the corresponding discharge port 8 is in a lower position (that is, the discharge port 8 is not exposed from the liquid level of the cleaning liquid), and by inserting the opening and closing shaft 18 into the locking hole 20, it can be ensured that the corresponding sealing plate 15 is not easily slid by mistake and the cleaning liquid is not easily leaked.

[0043] To achieve the sliding control of the plugging plate 15, the opening and closing mechanism 9 may further include an ejection ring 21 that can be ejected and arranged at the top of the main shaft 4 of the moving cone 3. For example, the ejection of the ejection ring 21 can be realized by an ejection mechanism such as an electric cylinder or a cylinder. A number of connecting rods 22 are also arranged on the ejection ring 21, and the number of connecting rods 22 corresponds to the number of plugging plates 15 one by one. The connecting rod 22 is specifically adapted to extend towards the plugging plate 15, and the two are also connected by a buckle mechanism 24. When the ejection ring 21 is ejected, the plugging plate 15 will slide synchronously with the ejection ring 21 under the drive of the buckle mechanism 24. Among them, the buckle mechanism 24 can refer to any structure in the prior art that can realize the mutual separation and re - buckling of two components through the form of buckle fastening. More particularly, the buckle on the connecting rod 22 is adapted to be able to elastically move laterally.

[0044] In addition, a return spring 23 is also connected to the plugging plate 15. The following schematically describes the operation process of this example:

[0045] S1. Put the ore into the cleaning tray 12. As the moving cone 3 swings, the cleaning tray 12 that swings synchronously with the moving cone 3 will cause the cleaning liquid inside it to swing relative to the ore, and the ore is more fully cleaned;

[0046] S2. During this period, different discharge ports 8 on the cleaning tray 12 will be lifted to a higher position, and according to the swinging rhythm, the ejection ring 21 is controlled to be ejected periodically;

[0047] S201. The ejection ring 21 ejects on the side away from the cleaning tray 12. Through the cooperation of the buckle mechanism 24 between the connecting rod 22 and the plugging plate 15, the ejection ring 21 has a tendency to pull and slide all the plugging plates 15. Since the liquid discharge hole 17 at the lower position is in the drainage state, the corresponding opening and closing shaft 18 will insert into the locking hole 20 of the corresponding plugging plate 15, so that the corresponding plugging plate 15 cannot be pulled. Eventually, only the plugging plate 15 at the higher position will be pulled and the corresponding discharge port 8 will be opened for braking. Subsequently, the washed ore is discharged into the crushing cavity 6 through the discharge port 8 to complete crushing;

[0048] S202. The ejection ring 21 ejects again on the side closer to the cleaning tray 12. Thus, the pulled - out plugging plate 15 can slide back to the plugging position of the discharge port 8 under the pulling force of the return spring 23;

[0049] S3. Continuously execute S1 - S2 to realize the continuous cleaning and feeding of the ore.

[0050] Among them, in S201, since the plugging plate 15 cannot be pulled, the buckle on the corresponding connecting rod 22 will bounce, causing the connecting rod 22 to disengage from the plugging plate 15, rather than interfering with the normal ejection of the ejection ring 21; while in S202, as the connecting rod 22 gradually approaches the plugging plate 15, the buckle on the connecting rod 22 will bounce again and achieve re-latching with the buckle on the plugging plate 15, waiting to re-execute step S2 as required.

[0051] Although the above two implementation schemes of the cleaning tank 7 both achieve the automatic separation of the cleaning liquid and the ore by tilting the material, in the scheme of the cleaning disk 12, relative swinging can occur between the ore and the cleaning liquid to achieve a better cleaning effect than the other scheme. And in the scheme of the cleaning disk 12, the ore is discharged from the discharge port 8 located at a higher position, and at this time, the moving cone 3 is exactly crushing the ore corresponding to the discharge port 8 in the crushing cavity 6, and the discharged ore just supplements the area above this area, realizing targeted and uniform distribution of the ore in the crushing cavity 6.

[0052] In a more optimal example of the cleaning disk 12, the plugging plate 15 extends towards the ejection ring 21 side and is configured with a bent portion 25, and from the vertical projection, the bent portion 25 overlaps with the cleaning disk 12. And a plurality of air bags 26 are further arranged on the bottom surface of the cleaning disk 12, and the plurality of air bags 26 correspond to the plurality of plugging plates 15 one by one, and each air bag 26 is specifically arranged between the corresponding bent portion 25 and the bottom surface of the cleaning disk 12. The air outlet end of the air bag 26 is adapted to communicate upwards with the inner cavity of the cleaning disk 12.

[0053] Thus, in the above S201, the air bag 26 corresponding to the un-pulled plugging plate 15 will remain in a compressed state; while in the above S202, the pulled plugging plate 15 will squeeze the inflated air bag 26 during the reset process, so that the gas is pumped into the inner cavity of the cleaning disk 12. The gas filled in the cleaning liquid can further have an effect similar to stirring, so that the cleaning effect on the ore is improved again. More peculiarly, since the ore is discharged from the corresponding discharge port 8, the ore filled into the cleaning disk 12 at this time will also be preferentially filled into this part of the area, and the gas is exactly filled into the cleaning liquid in this part of the area, so that the ore in this part can obtain the best stirring and cleaning effect.

[0054] For example, a conical guiding ring 13 plate with a diameter gradually decreasing from top to bottom is joined to the top of the cleaning disk 12, and an elastic seal 27 such as a rubber ring or a corrugated pipe can be preferably connected between the conical guiding ring 13 plate and the inner wall of the frame 1. And through the conical guiding ring 13 plate, the ore put into the frame 1 can be guided towards the cleaning disk 12 side, and it is not easy for the unwashed ore to directly fall into the crushing cavity 6. Embodiment

[0055] A phosphate rock conical crushing method, including the phosphate rock conical crusher of Embodiment 1, further includes the following steps:

[0056] S1. Put the ore to be crushed into the cleaning tank 7;

[0057] S2. Pass a cleaning liquid into the cleaning tank 7, and during this period, keep the opening and closing mechanism 9 in a closed state for the discharge port 8;

[0058] S3. Control the opening and closing mechanism 9 to open the discharge port 8, so that the cleaned ore is discharged from the discharge port 8 and falls into the crushing cavity 6 to complete crushing.

[0059] The above is only the preferred embodiment of the present invention. It should be understood that the present invention is not limited to the form disclosed herein, should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be within the scope of the concept described herein, through the above teachings or the technology or knowledge in related fields for modification. And any changes and alterations made by those skilled in the art without departing from the spirit and scope of the present invention shall fall within the protection scope of the appended claims of the present invention.

Claims

1. A phosphate rock cone crusher, comprising a frame (1), a fixed cone (2) is arranged inside the frame (1), a movable cone (3) is swingably arranged inside the fixed cone (2), the movable cone (3) comprises a main shaft (4) and a cone body (5) arranged on the side wall of the main shaft (4), a crushing cavity (6) is formed between the cone body (5) and the fixed cone (2), and it is characterized in that: A cleaning trough (7) is provided on the top of the frame (1), a discharge port (8) is provided on the cleaning trough (7), and an opening and closing mechanism (9) is provided at the discharge port (8); the cleaned ore is discharged from the discharge port (8) and falls into the crushing chamber (6); The cleaning tank (7) is adapted to separate the cleaning liquid from the ore by tilting, and the cleaned ore is discharged from the discharge port (8) located at the end of the high side of the cleaning tank (7); The cleaning tank (7) includes a cleaning disc (12) arranged on the top of the moving cone (3), and a plurality of discharge ports (8) are circumferentially arranged on the side wall of the cleaning disc (12). As the moving cone (3) swings, the cleaning disc (12) swings synchronously and drives the cleaning liquid inside it to swing relatively. The opening and closing mechanism (9) is adapted to open only the discharge port (8) located at the end of the high side of the cleaning disc (12) in a single action.

2. The phosphate rock cone crusher according to claim 1, characterized in that: A hot air device is also provided on the top of the frame (1), and the hot air device is located below the cleaning tank (7).

3. The phosphate rock cone crusher according to claim 1, characterized in that: The top of the cleaning disc (12) is connected with a conical guide ring (13), and the diameter of the conical guide ring (13) gradually decreases from top to bottom.

4. The phosphate rock cone crusher according to claim 1, characterized in that: The opening and closing mechanism (9) comprises a plurality of opening and closing parts distributed along the circumferential direction, and the plurality of opening and closing parts correspond one to one with the plurality of discharge ports (8).

5. The phosphate rock cone crusher according to claim 1, characterized in that: The opening and closing mechanism (9) comprises a blocking plate (15) slidably adapted on the side wall of the cleaning disc (12), wherein the blocking plate (15) can slide to face the discharge port (8) and block the discharge port (8); A liquid outlet channel (16) is provided inside the dish body of the cleaning dish (12), a liquid outlet hole (17) connected to the liquid outlet channel (16) is provided on the inner wall of the cleaning dish (12), an opening and closing shaft (18) is elastically provided in the liquid outlet channel (16), and when the opening and closing shaft (18) is in a natural state, the opening and closing shaft (18) is sealed and stuck in the liquid outlet hole (17), and the opening and closing shaft (18) is adapted to be able to elastically move under the action of water pressure, thereby connecting the liquid outlet hole (17) with the liquid outlet channel (16); A connecting hole (19) connected to the liquid outlet channel (16) is provided on the outer wall of the cleaning disk (12), and a locking hole (20) is correspondingly provided on the blocking plate (15). When the opening and closing shaft (18) is elastic, the end of the opening and closing shaft (18) away from the liquid outlet hole (17) passes through the connecting hole (19) and extends into the locking hole (20); The opening and closing mechanism (9) further comprises an ejection ring (21) which can be ejected and arranged at the top of the main shaft (4); a plurality of connecting rods (22) are arranged on the ejection ring (21); the plurality of connecting rods (22) correspond to the plurality of blocking plates (15) one by one; a return spring (23) is connected to the blocking plate (15); the connecting rod (22) and the blocking plate (15) are connected via a snap mechanism (24); and the snap on the connecting rod (22) can be elastically arranged in a lateral direction.

6. The phosphate rock cone crusher according to claim 5, characterized in that: The plugging plate (15) is extended towards the ejecting ring (21) to form a bending part (25). The bending part (25) is located below the cleaning tray (12), and a plurality of air bags (26) are arranged on the bottom surface of the cleaning tray (12). The plurality of air bags (26) correspond to the plurality of plugging plates (15) one by one. The air bags (26) are located above the bending part (25), and the air outlet ends of the air bags (26) communicate upwards with the inner cavity of the cleaning tray (12).

7. A method for conical crushing of phosphate rock, comprising the phosphate rock conical crusher according to any one of claims 1-6, characterized in that: Comprising the following steps: S1. Put the ore to be broken into the cleaning tank (7); S2. Inject a cleaning liquid into the cleaning tank (7), and keep the opening and closing mechanism (9) in a closed state with respect to the discharge port (8) during this period; S3. Control the opening and closing mechanism (9) to open the discharge port (8), so that the cleaned ore is discharged from the discharge port (8) and falls into the crushing cavity (6) to complete crushing.

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