A crusher for metal ore processing and its operation method

Abstract

The present invention discloses a crusher for metal ore processing and its operation method, including a support base, a chassis, a strengthening frame and a maintenance door. By setting the combined use of the chassis, the first crushing roller, the second crushing roller, the filter plate, the spraying assembly and the air dispersion assembly, the ore is poured from the hopper of the chassis. The first crushing roller performs preliminary crushing on the ore, and the second crushing roller performs secondary crushing on the ore. The crushed ore falls onto the filter plate. The filter plate filters small crushed stones and powder. The spraying pipe performs dust reduction through the spray head. The crushed stones and powder enter the inner cavity of the collection box. The hot air blower dries the ore on the filter plate, and the heat dissipation fan discharges the hot air through the air dispersion pipe, solving the problem that most of the existing crushers do not have the ability to reduce dust during crushing. Dust and crushed stones will float with the air and will be mixed in the crushed ore, and the ore still needs to be screened, and the process is relatively cumbersome.

Description

Technical Field

[0001] The present invention belongs to the technical field of metal ore processing, and particularly relates to a crusher for metal ore processing and an operation method thereof. Background Art

[0002] A crusher, also known as a stone crusher, is a crushing machine used in the processing of metal ores and non-metal ores, which can crush the mined raw ores into small pieces and particles through extrusion, bending and other means;

[0003] Metal ores generally refer to minerals from which metal elements can be extracted through smelting. For example, ferrous metal ores such as iron, manganese, chromium, vanadium, and titanium are minerals used as raw materials for the steel industry. Non-ferrous metal ores include copper, tin, zinc, nickel, cobalt, tungsten, molybdenum, mercury, etc. Precious metals include platinum, rhodium, gold, silver, etc. Light metal ores include aluminum, magnesium, etc. Rare metal ores include lithium, beryllium, rare earths, etc. Metal ores can be divided into 5 categories according to their material composition, properties, and uses: ferrous metal ores, non-ferrous metal ores, precious metal ores, scattered element ores, and semi-metal ores;

[0004] The Chinese patent discloses a crushing machine for metal ore mining, with the publication number: CN212732275U, which includes a crushing box and a crushing unit; Crushing box: It is a hollow structure. The front side of the crushing box is provided with a feed inlet. The upper end of the front side of the feed inlet is rotatably connected to a feed baffle through a rotating shaft. A handle is provided on the front side of the feed baffle. The feed baffle is installed in a clamping fit with the feed inlet. The right side of the crushing box is provided with a discharge port. A discharge baffle is provided in the discharge port. The discharge baffle is installed in a clamping fit with the discharge port. A pull rod is provided on the right side of the discharge baffle. This crushing machine for metal ore mining can crush large pieces of metal ores through the crushing unit, and the crushing degree of the metal ores by this crushing machine can be improved by the crushing blocks in the shape of conical protrusions. When the crushing work is completed, the crushed metal ores can be cleaned through the cleaning unit. Through retrieval, the above is the closest prior art case;

[0005] In the process of crushing metal ores, a crusher is required. To sum up, the problems existing in the prior art are: Most of the existing crushers do not have the ability to reduce dust during crushing. Dust and crushed stones will float with the air and will be mixed in the crushed ores. It is also necessary to screen the ores, and the process is rather cumbersome. Therefore, a crusher for metal ore processing and an operation method thereof are specifically proposed to solve the above problems. Summary of the Invention

[0006] In view of the problems existing in the prior art, the present invention provides a crusher for metal ore processing and its operation method, which has the advantages of dust treatment and screening, and solves the problem that most existing crushers do not have the ability to reduce dust during crushing. Dust and crushed stones will float with the air and will be mixed in the crushed ore, and the ore still needs to be screened, and the process is relatively cumbersome.

[0007] The present invention is realized as follows: A crusher for metal ore processing and its operation method, including a support base, a chassis, a reinforcing frame and a maintenance door. The chassis is installed on the top of the support base, the reinforcing frame is installed on the front and rear sides of both sides of the chassis, the maintenance door is installed on the front side of the chassis, first guide plates are installed on both sides of the inner wall of the chassis, a first crushing roller and a second crushing roller are installed in the inner cavity of the chassis, a spraying assembly is arranged at the bottom of the second crushing roller, a filter plate is arranged in the inner cavity of the chassis, a support rod is fixedly connected to the rear side of the bottom of the filter plate, a support block is arranged at the bottom of the filter plate, a limiting rod is fixedly connected to the bottom of the filter plate, a limiting block is arranged at the bottom of the limiting rod, a limiting groove is opened at the top of the limiting block, the bottom of the limiting rod extends into the inner cavity of the limiting groove, and a fixing mechanism matched with the limiting rod is arranged in the inner cavity of the limiting groove. An operating mechanism matched with the fixing mechanism is arranged on the front side of the limiting groove. Hot air blowers are fixedly communicated with both sides of the chassis, and air dispersing assemblies are arranged on both sides of the chassis.

[0008] Preferably, the spraying assembly includes a spraying pipe, spraying heads and second guide plates. The spraying heads are installed at the bottom of the spraying pipe, the second guide plates are located at the top of the spraying pipe. The number of the spraying heads is several and they are evenly distributed at the bottom of the spraying pipe. Opposite sides of the two second guide plates are fixedly connected to the inner wall of the chassis, and both sides, the front side and the rear side of the spraying pipe are fixedly connected to the inner wall of the chassis.

[0009] Preferably, the fixing mechanism includes two fixing rods. Positioning rods are arranged on opposite sides of the two fixing rods. A positioning block is arranged on the side of the positioning rod away from the fixing rod. The side of the positioning rod close to the positioning block extends into the inner cavity of the positioning block. A spring is fixedly connected to the side of the fixing rod close to the positioning block. The fixing rod is matched with the operating mechanism.

[0010] Preferably, the operating mechanism includes a rotary knob. The rear side of the rotary knob extends into the inner cavity of the limiting block and is fixedly connected to a movable block. A movable rod matched with the fixing rod is fixedly connected to the surface of the movable block.

[0011] Preferably, the air dispersing assembly includes an air dispersing pipe. An air dispersing fan is arranged in the inner cavity of the air dispersing pipe, and a baffle is arranged in the inner cavity of the air dispersing pipe.

[0012] Preferably in the present invention, the bottom of the support rod extends into the inner cavity of the support block, one side of the support rod close to the inner wall of the support block contacts the inner wall of the support block, one side of the limiting rod close to the inner wall of the limiting hole contacts the inner wall of the limiting hole, and a fixing groove for cooperating with the fixing rod is formed on the surface of the limiting rod.

[0013] Preferably in the present invention, one side of the fixing rod close to the inner wall of the fixing groove contacts the inner wall of the fixing groove, one side of the positioning rod away from the fixing rod is fixedly connected to the inner wall of the limiting block, one side of the spring away from the fixing rod is fixedly connected to the inner wall of the limiting block, and one side of the movable rod close to the fixing rod contacts the fixing rod.

[0014] Preferably in the present invention, both the front side and the rear side of the air-diffusing fan are fixedly connected to the inner wall of the air-diffusing pipe, one side of the baffle close to the inner wall of the air-diffusing pipe is fixedly communicated with the inner wall of the air-diffusing pipe, and a collecting box is arranged at the bottom of the filter plate.

[0015] Preferably in the present invention, the first step is to pour the ore from the hopper of the machine case. The first crushing roller initially crushes the ore, and the second crushing roller performs a second crushing on the ore. The crushed ore drops onto the filter plate, and the filter plate filters out small crushed stones and powder.

[0016] The second step is that the spraying pipe performs dust reduction through the spray head. The crushed stones and powder enter the inner cavity of the collecting box. The hot air blower dries the ore on the filter plate, and the heat dissipation fan discharges the hot air through the air-diffusing pipe. The baffle prevents the ore from entering the air-diffusing pipe.

[0017] The third step is that when it is necessary to clean the filter plate and the powder and crushed stones in the collecting box, the user opens the maintenance door, pulls out the collecting box and cleans it. Then, the user rotates the rotary knob. The rotary knob drives the movable block to rotate, the movable block drives the movable rod to rotate, the movable rod squeezes the fixing rod. After the fixing rod is stressed, it drives the positioning block to slide on the surface of the positioning rod and squeezes the spring. The fixing rod leaves the inner cavity of the fixing groove. Then, the user pulls up the filter plate. The filter plate drives the limiting rod and the support rod to move. The limiting rod and the support rod leave the inner cavities of the limiting block and the support block. Then, the user cleans the filter plate. After the cleaning is completed, the user resets the filter plate. The filter plate drives the limiting rod and the support rod to enter the inner cavities of the limiting block and the support block. Then, the user releases the rotary knob. The force released after the spring is compressed makes the fixing rod reset. The fixing rod enters the inner cavity of the fixing groove, and the cleaning is completed.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0019] 1. By using the combination of a chassis, a first crushing roller, a second crushing roller, a filter plate, a spraying assembly, and a gas-dispersing assembly, the ore is poured from the hopper of the chassis. The first crushing roller initially crushes the ore, and the second crushing roller performs a second crushing on the ore. The crushed ore falls onto the filter plate, which filters out small crushed stones and powder. The spraying pipe uses spray heads to reduce dust. The crushed stones and powder enter the inner cavity of the collection box. The hot air blower dries the ore on the filter plate, and the heat dissipation fan discharges the hot air through the gas-dispersing pipe. The baffle prevents the ore from entering the gas-dispersing pipe, solving the problem that most existing crushers do not have the ability to reduce dust during crushing, and dust and crushed stones will float with the air and mix in the crushed ore, and the ore still needs to be screened, which is a rather cumbersome process. This crusher for metal ore processing and its operation method have the advantages of dust treatment and screening, and are worthy of promotion.

[0020] 2. By setting up the spraying assembly, the spray heads can spray water mist to reduce dust for the powder generated during crushing, reducing environmental pollution during processing.

[0021] 3. By setting up the fixing mechanism, the position of the limiting rod can be fixed and limited to prevent the movement of the limiting rod from affecting the positioning ability of the filter plate. It can also cooperate with the moving mechanism to control the movement of the fixing rod, thereby controlling the fixing and limiting of the limiting rod.

[0022] 4. By setting up the moving mechanism, the movement of the fixing rod can be controlled, thereby controlling the fixing and limiting of the limiting rod.

[0023] 5. By setting up the gas-dispersing assembly, the hot air generated by the hot air blower can be discharged outward.

[0024] 6. By setting up the support rod, support block, limiting rod, and limiting block, the filter plate can be limited to prevent the filter plate from moving.

[0025] 7. By setting up the fixing rod and fixing groove, the position of the limiting rod can be fixed and limited to prevent the movement of the limiting rod from affecting the positioning ability of the filter plate. By setting up the positioning rod and positioning block, the fixing rod can be limited to prevent unnecessary displacement of the fixing rod. By setting up the spring, the fixing rod can be reset after moving.

[0026] 8. By setting up the heat dissipation fan, baffle, and gas-dispersing pipe, the hot air generated by the hot air blower can be discharged from the inside of the chassis to the outside. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is the structural schematic diagram provided by an embodiment of the present invention;

[0028] Figure 2It is a three-dimensional schematic diagram of the local structure provided by an embodiment of the present invention;

[0029] Figure 3 It is a three-dimensional schematic diagram of the first guide plate, the first crushing roller and the second crushing roller provided by an embodiment of the present invention;

[0030] Figure 4 It is a three-dimensional schematic diagram of the spraying assembly, the air diffusing pipe and the hot air blower provided by an embodiment of the present invention;

[0031] Figure 5 It is a three-dimensional schematic diagram of the air diffusing assembly provided by an embodiment of the present invention;

[0032] Figure 6 It is a three-dimensional schematic diagram of the filter plate, the support block, the support rod, the limiting rod and the limiting block provided by an embodiment of the present invention;

[0033] Figure 7 It is a three-dimensional schematic diagram of the vertical section of the limiting block provided by an embodiment of the present invention.

[0034] In the figure: 1, support base; 2, chassis; 3, strengthening frame; 4, maintenance door; 5, first guide plate; 6, first crushing roller; 7, second crushing roller; 8, spraying assembly; 801, spraying pipe; 802, spraying head; 803, second guide plate; 9, filter plate; 10, support rod; 11, support block; 12, limiting rod; 13, limiting block; 14, limiting groove; 15, fixing mechanism; 1501, fixing rod; 1502, positioning rod; 1503, positioning block; 1504, spring; 16, moving mechanism; 1601, turning knob; 1602, moving block; 1603, moving rod; 17, hot air blower; 18, air diffusing assembly; 1801, air diffusing pipe; 1802, air diffusing fan; 1803, baffle; 19, fixing groove; 20, collection box. Detailed implementation manners

[0035] In order to further understand the content, features and effects of the present invention, the following embodiments are cited and described in detail with reference to the accompanying drawings as follows.

[0036] The structure of the present invention will be described in detail below with reference to the accompanying drawings.

[0037] As Figures 1 to 6As shown in the figure, a crusher for metal ore processing and its operation method provided by an embodiment of the present invention include a support base 1, a chassis 2, a strengthening frame 3, and a maintenance door 4. The chassis 2 is installed on the top of the support base 1. The strengthening frame 3 is installed on the front and rear sides of both sides of the chassis 2. The maintenance door 4 is installed on the front side of the chassis 2. First guide plates 5 are installed on both sides of the inner wall of the chassis 2. A first crushing roller 6 and a second crushing roller 7 are installed in the inner cavity of the chassis 2. A spraying assembly 8 is arranged at the bottom of the second crushing roller 7. A filter plate 9 is arranged in the inner cavity of the chassis 2. A support rod 10 is fixedly connected to the rear side of the bottom of the filter plate 9. A support block 11 is arranged at the bottom of the filter plate 9. A limiting rod 12 is fixedly connected to the bottom of the filter plate 9. A limiting block 13 is arranged at the bottom of the limiting rod 12. A limiting groove 14 is formed at the top of the limiting block 13. The bottom of the limiting rod 12 extends into the inner cavity of the limiting groove 14. A fixing mechanism 15 matching with the limiting rod 12 is arranged in the inner cavity of the limiting groove 14. An actuating mechanism 16 matching with the fixing mechanism 15 is arranged on the front side of the limiting groove 14. Hot air blowers 17 are fixedly communicated with both sides of the chassis 2. Air dispersing assemblies 18 are arranged on both sides of the chassis 2.

[0038] Reference Figure 2 and Figure 4 , the spraying assembly 8 includes a spraying pipe 801, spraying nozzles 802, and second guide plates 803. The spraying nozzles 802 are installed at the bottom of the spraying pipe 801. The second guide plates 803 are located at the top of the spraying pipe 801. The number of the spraying nozzles 802 is several and they are evenly distributed at the bottom of the spraying pipe 801. Opposite sides of the two second guide plates 803 are fixedly connected to the inner wall of the chassis 2. Both the front, rear, and both sides of the spraying pipe 801 are fixedly connected to the inner wall of the chassis 2.

[0039] Adopting the above scheme: By arranging the spraying assembly 8, water mist can be sprayed through the spraying nozzles 802 to reduce the dust generated by crushing, and reduce environmental pollution during processing.

[0040] Reference Figure 7 , the fixing mechanism 15 includes two fixing rods 1501. Positioning rods 1502 are arranged on opposite sides of the two fixing rods 1501. A positioning block 1503 is arranged on the side of the positioning rod 1502 away from the fixing rod 1501. The side of the positioning rod 1502 close to the positioning block 1503 extends into the inner cavity of the positioning block 1503. A spring 1504 is fixedly connected to the side of the fixing rod 1501 close to the positioning block 1503. The fixing rod 1501 is used in cooperation with the actuating mechanism 16.

[0041] Adopting the above scheme: By arranging the fixing mechanism 15, the position of the limiting rod 12 can be fixed and limited, preventing the movement of the limiting rod 12 from affecting the positioning ability of the filter plate 9. It can also cooperate with the actuating mechanism 16 to control the movement of the fixing rod 1501, thereby controlling the fixing and limiting of the limiting rod 12.

[0042] Reference Figure 7 , the movable mechanism 16 includes a rotary knob 1601. The rear side of the rotary knob 1601 extends into the inner cavity of the limit block 13 and is fixedly connected with a movable block 1602. The surface of the movable block 1602 is fixedly connected with a movable rod 1603 which is used in cooperation with the fixed rod 1501.

[0043] With the above solution: By setting the movable mechanism 16, the movement of the fixed rod 1501 can be controlled, so as to control the fixing and limiting of the limit rod 12.

[0044] Reference Figure 5 , the air-dissipating component 18 includes an air-dissipating pipe 1801. An air-dissipating fan 1802 is arranged in the inner cavity of the air-dissipating pipe 1801, and a baffle 1803 is arranged in the inner cavity of the air-dissipating pipe 1801.

[0045] With the above solution: By setting the air-dissipating component 18, the hot air generated by the hot air blower 17 can be discharged outwards.

[0046] Reference Figure 6 and Figure 7 , the bottom of the support rod 10 extends into the inner cavity of the support block 11. One side of the support rod 10 close to the inner wall of the support block 11 contacts the inner wall of the support block 11. One side of the limit rod 12 close to the inner wall of the limit hole contacts the inner wall of the limit hole. A fixing groove 19 which is used in cooperation with the fixed rod 1501 is formed on the surface of the limit rod 12.

[0047] With the above solution: By setting the support rod 10, the support block 11, the limit rod 12 and the limit block 13, the filter plate 9 can be limited to prevent the filter plate 9 from moving.

[0048] Reference Figure 7 , one side of the fixed rod 1501 close to the inner wall of the fixing groove 19 contacts the inner wall of the fixing groove 19. One side of the positioning rod 1502 away from the fixed rod 1501 is fixedly connected with the inner wall of the limit block 13. One side of the spring 1504 away from the fixed rod 1501 is fixedly connected with the inner wall of the limit block 13. One side of the movable rod 1603 close to the fixed rod 1501 contacts the fixed rod 1501.

[0049] With the above solution: By setting the fixed rod 1501 and the fixing groove 19, the position of the limit rod 12 can be fixed and limited to prevent the movement of the limit rod 12 from affecting the positioning ability of the filter plate 9. By setting the positioning rod 1502 and the positioning block 1503, the fixed rod 1501 can be limited to prevent the fixed rod 1501 from having unnecessary displacement. By setting the spring 1504, the fixed rod 1501 can be reset after moving.

[0050] Reference Figure 2 and Figure 5, both the front side and the rear side of the air-dispersing fan 1802 are fixedly connected to the inner wall of the air-dispersing pipe 1801. One side of the baffle 1803 close to the inner wall of the air-dispersing pipe 1801 is fixedly communicated with the inner wall of the air-dispersing pipe 1801. A collection box 20 is arranged at the bottom of the filter plate 9.

[0051] Adopting the above solution: By arranging the air-dispersing fan 1802, the baffle 1803 and the air-dispersing pipe 1801, the hot air generated by the hot air blower 17 can be discharged from the inside of the chassis 2 to the outside.

[0052] Reference Figures 1 to 7 , Step 1: Pour the ore from the hopper of the chassis 2. The first crushing roller 6 performs preliminary crushing on the ore, and the second crushing roller 7 performs secondary crushing on the ore. The crushed ore falls onto the filter plate 9, and the filter plate 9 filters out small crushed stones and powders;

[0053] Step 2: The spraying pipe 801 performs dust reduction through the spray head 802. The crushed stones and powders enter the inner cavity of the collection box 20. The hot air blower 17 dries the ore on the filter plate 9, and the heat dissipation fan discharges the hot air through the air-dispersing pipe 1801. The baffle 1803 prevents the ore from entering the air-dispersing pipe 1801;

[0054] Step 3; When it is necessary to clean the filter plate 9 and the powders and crushed stones in the collection box 20, the user opens the maintenance door 4, pulls out the collection box 20 and cleans it. Then rotate the knob 1601. The knob 1601 drives the movable block 1602 to rotate. The movable block 1602 drives the movable rod 1603 to rotate. The movable rod 1603 squeezes the fixed rod 1501. After the fixed rod 1501 is stressed, it drives the positioning block 1503 to slide on the surface of the positioning rod 1502 and squeezes the spring 1504. The fixed rod 1501 leaves the inner cavity of the fixed groove 19. Then pull up the filter plate 9. The filter plate 9 drives the limiting rod 12 and the support rod 10 to move. The limiting rod 12 and the support rod 10 leave the inner cavities of the limiting block 13 and the support block 11. Then clean the filter plate 9. After the cleaning is completed, reset the filter plate 9. The filter plate 9 drives the limiting rod 12 and the support rod 10 to enter the inner cavities of the limiting block 13 and the support block 11. Then release the knob 1601. The force released after the spring 1504 is compressed makes the fixed rod 1501 reset. The fixed rod 1501 enters the inner cavity of the fixed groove 19 to complete the cleaning.

[0055] The working principle of the present invention:

[0056] During use, the ore is poured from the hopper of the chassis 2. The first crushing roller 6 initially crushes the ore, and the second crushing roller 7 performs a second crushing on the ore. The crushed ore falls onto the filter plate 9. The filter plate 9 filters out small crushed stones and powder. The spraying pipe 801 performs dust suppression through the spray head 802. The crushed stones and powder enter the inner cavity of the collection box 20. The hot air blower 17 dries the ore on the filter plate 9. The heat dissipation fan discharges the hot air through the air dispersion pipe 1801. The baffle 1803 prevents the ore from entering the air dispersion pipe 1801. When it is necessary to clean the filter plate 9 and the powder and crushed stones in the collection box 20, the user opens the maintenance door 4, pulls out the collection box 20 and cleans it. Then, the rotary knob 1601 is rotated. The rotary knob 1601 drives the movable block 1602 to rotate. The movable block 1602 drives the movable rod 1603 to rotate. The movable rod 1603 squeezes the fixed rod 1501. After the fixed rod 1501 is stressed, it drives the positioning block 1503 to slide on the surface of the positioning rod 1502 and squeezes the spring 1504. The fixed rod 1501 leaves the inner cavity of the fixed groove 19. Then, the filter plate 9 is pulled upward. The filter plate 9 drives the limit rod 12 and the support rod 10 to move. The limit rod 12 and the support rod 10 leave the inner cavities of the limit block 13 and the support block 11. Then, the filter plate 9 is cleaned. After the cleaning is completed, the filter plate 9 is reset. The filter plate 9 drives the limit rod 12 and the support rod 10 to enter the inner cavities of the limit block 13 and the support block 11. Then, the rotary knob 1601 is released. The force released after the spring 1504 is compressed causes the fixed rod 1501 to be reset. The fixed rod 1501 enters the inner cavity of the fixed groove 19, and the cleaning is completed.

[0057] In summary, for the crusher for metal ore processing and its operation method, through the combined use of the chassis 2, the first crushing roller 6, the second crushing roller 7, the filter plate 9, the spraying assembly 8 and the air dispersion assembly 18, the ore is poured from the hopper of the chassis 2. The first crushing roller 6 initially crushes the ore, and the second crushing roller 7 performs a second crushing on the ore. The crushed ore falls onto the filter plate 9. The filter plate 9 filters out small crushed stones and powder. The spraying pipe 801 performs dust suppression through the spray head 802. The crushed stones and powder enter the inner cavity of the collection box 20. The hot air blower 17 dries the ore on the filter plate 9. The heat dissipation fan discharges the hot air through the air dispersion pipe 1801. The baffle 1803 prevents the ore from entering the air dispersion pipe 1801, solving the problem that most existing crushers do not have the ability to suppress dust during crushing, and the dust and crushed stones will float with the air and will be mixed in the crushed ore, and the ore still needs to be screened, and the process is rather cumbersome.

[0058] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0059] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A crusher for metal ore processing, comprising a support base (1), a machine case (2), a reinforcing frame (3) and a maintenance door (4). The machine case (2) is installed on the top of the support base (1). The reinforcing frame (3) is installed on the front side and the rear side of both sides of the machine case (2). The maintenance door (4) is installed on the front side of the machine case (2), and it is characterized in that: On both sides of the inner wall of the chassis (2), first guide plates (5) are installed. Inside the cavity of the chassis (2), a first crushing roller (6) and a second crushing roller (7) are installed. At the bottom of the second crushing roller (7), a spraying assembly (8) is provided. Inside the cavity of the chassis (2), a filter plate (9) is provided. At the rear side of the bottom of the filter plate (9), a support rod (10) is fixedly connected. At the bottom of the filter plate (9), a support block (11) is provided. At the bottom of the filter plate (9), a limiting rod (12) is fixedly connected. At the bottom of the limiting rod (12), a limiting block (13) is provided. At the top of the limiting block (13), a limiting groove (14) is opened. The bottom of the limiting rod (12) extends into the inner cavity of the limiting groove (14). Inside the inner cavity of the limiting groove (14), a fixing mechanism (15) that cooperates with the limiting rod (12) is provided. At the front side of the limiting groove (14), a moving mechanism (16) that cooperates with the fixing mechanism (15) is provided. On both sides of the chassis (2), hot air blowers (17) are fixedly communicated. On both sides of the chassis (2), air dispersion assemblies (18) are provided; The spraying assembly (8) includes a spraying pipe (801), spraying heads (802), and a second guide plate (803). The spraying heads (802) are installed at the bottom of the spraying pipe (801). The second guide plate (803) is located at the top of the spraying pipe (801). The number of the spraying heads (802) is several, and they are evenly distributed at the bottom of the spraying pipe (801). On the opposite sides of the two second guide plates (803), both are fixedly connected to the inner wall of the chassis (2). The two sides, the front side, and the rear side of the spraying pipe (801) are all fixedly connected to the inner wall of the chassis (2); The fixing mechanism (15) includes two fixing rods (1501). On the opposite sides of the two fixing rods (1501), positioning rods (1502) are provided. On the side of the positioning rod (1502) away from the fixing rod (1501), a positioning block (1503) is provided. The side of the positioning rod (1502) close to the positioning block (1503) extends into the inner cavity of the positioning block (1503). On the side of the fixing rod (1501) close to the positioning block (1503), a spring (1504) is fixedly connected. The fixing rod (1501) cooperates with the moving mechanism (16); The moving mechanism (16) includes a turning knob (1601). The rear side of the turning knob (1601) extends into the inner cavity of the limiting block (13) and is fixedly connected to a moving block (1602). On the surface of the moving block (1602), a moving rod (1603) that cooperates with the fixing rod (1501) is fixedly connected.

2. The crusher for metal ore processing according to claim 1, and it is characterized in that: The air dispersion assembly (18) includes an air dispersion pipe (1801). Inside the inner cavity of the air dispersion pipe (1801), an air dispersion fan (1802) is provided. Inside the inner cavity of the air dispersion pipe (1801), a baffle plate (1803) is provided.

3. The crusher for metal ore processing according to claim 1, and it is characterized in that: The bottom of the support rod (10) extends into the inner cavity of the support block (11). One side of the support rod (10) close to the inner wall of the support block (11) is in contact with the inner wall of the support block (11). One side of the limit rod (12) close to the inner wall of the limit hole is in contact with the inner wall of the limit hole. A fixing groove (19) for cooperating with the fixing rod (1501) is formed on the surface of the limit rod (12).

4. The crusher for metal ore processing according to claim 3, and it is characterized in that: One side of the fixing rod (1501) close to the inner wall of the fixing groove (19) is in contact with the inner wall of the fixing groove (19). One side of the positioning rod (1502) away from the fixing rod (1501) is fixedly connected to the inner wall of the limit block (13). One side of the spring (1504) away from the fixing rod (1501) is fixedly connected to the inner wall of the limit block (13). One side of the movable rod (1603) close to the fixing rod (1501) is in contact with the fixing rod (1501).

5. The crusher for metal ore processing according to claim 2, and it is characterized in that: Both the front side and the rear side of the air diffuser fan (1802) are fixedly connected to the inner wall of the air diffusing pipe (1801). One side of the baffle plate (1803) close to the inner wall of the air diffusing pipe (1801) is fixedly communicated with the inner wall of the air diffusing pipe (1801). A collection box (20) is arranged at the bottom of the filter plate (9).

6. An operation method of a crusher for metal ore processing, including the crusher for metal ore processing according to any one of claims 1 to 5, and it is characterized in that: The first step: Pour the ore from the hopper of the machine case (2). The first crushing roller (6) conducts preliminary crushing on the ore, and the second crushing roller (7) conducts secondary crushing on the ore. The crushed ore drops onto the filter plate (9), and the filter plate (9) filters out small crushed stones and powder. The second step: The spraying pipe (801) conducts dust reduction through the spray head (802). The crushed stones and powder enter the inner cavity of the collection box (20). The hot air blower (17) dries the ore on the filter plate (9). The heat dissipation fan discharges the hot air through the air discharge pipe (1801), and the baffle plate (1803) prevents the ore from entering the air discharge pipe (1801). Step 3: When it is necessary to clean the filter plate (9) and the powder and gravel in the collection box (20), the user opens the maintenance door (4), pulls out the collection box (20) and cleans it. Then, the user rotates the knob (1601). The knob (1601) drives the movable block (1602) to rotate. The movable block (1602) drives the movable rod (1603) to rotate. The movable rod (1603) squeezes the fixed rod (1501). After the fixed rod (1501) is stressed, it drives the positioning block (1503) to slide on the surface of the positioning rod (1502) and squeezes the spring (1504). The fixed rod (1501) leaves the inner cavity of the fixed groove (19). Then, the user pulls up the filter plate (9). The filter plate (9) drives the limit rod (12) and the support rod (10) to move. The limit rod (12) and the support rod (10) leave the inner cavities of the limit block (13) and the support block (11). Then, the user cleans the filter plate (9). After the cleaning is completed, the user resets the filter plate (9). The filter plate (9) drives the limit rod (12) and the support rod (10) to enter the inner cavities of the limit block (13) and the support block (11). Then, the user releases the knob (1601). The force released after the spring (1504) is compressed causes the fixed rod (1501) to reset. The fixed rod (1501) enters the inner cavity of the fixed groove (19), and the cleaning is completed.

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