A vertical shaft impact crusher for gravel processing and its usage method

Abstract

The present invention discloses a vertical shaft impact crusher for gravel processing, which includes a crushing chamber and a rotor. A blanking chamber is installed at the bottom of the crushing chamber, and a re-crushing and recycling mechanism is arranged inside the blanking chamber; the re-crushing and recycling mechanism includes a hollow shaft rotatably connected inside the blanking chamber, a spiral blade is installed outside the hollow shaft, a sleeve adapted to the spiral blade is installed on one side of the rotor close to the spiral blade, a fixing plate is installed on the inner side of the blanking chamber, a plurality of crushing rammers are installed on the upper side of the fixing plate, a chute is opened on the inner side wall of the blanking chamber, a spring is installed inside the chute, and the top of the spring is installed with a slider adapted to the chute. Through the combined use of the filter plate, chute, spring, slider, spiral blade and the return material port, the present invention can screen the crushed stones, the operation is simpler, it avoids the need for re-screening after the stones are crushed, and at the same time it can also prevent the stones from being blocked at the discharge port, improving the use effect of the stones.

Description

Technical Field

[0001] The present invention relates to the technical field of vertical shaft impact crushers, and particularly to a vertical shaft impact crusher for gravel processing and its usage method. Background Art

[0002] The vertical shaft impact crusher mainly uses a belt to drive a central vertical shaft to rotate a flat component equipped with a vertical guiding device. The rotor ejects materials horizontally onto the impact plane in the crushing chamber at an extremely high speed through centrifugal force. It has the characteristics of stable and reliable operation, convenient maintenance, and high sand production rate. The product particle shape is cubic, with a low content of needle-like and flaky particles, and is especially suitable for stone shaping and the production of manufactured sand. It can be widely used in fine crushing operations in industries such as hydropower, highways, construction, cement, and metal mines.

[0003] The existing vertical shaft impact crushers can only perform one-time crushing, and the crushing effect of the stones is average. There may be some stones that are not crushed. Among them, the larger stones will accumulate in the crushing chamber, blocking the discharge port. After the stones are discharged, they need to be screened again, and the operation is relatively cumbersome, reducing the efficiency of stone crushing and also reducing the usage effect of the stones. Therefore, a vertical shaft impact crusher for gravel processing and its usage method are needed. Summary of the Invention

[0004] The purpose of the present invention is to solve the disadvantages in the prior art, such as average crushing effect, easy blockage of the discharge port, relatively cumbersome operation, low efficiency of stone crushing, and affecting the usage effect of the stones, and to propose a vertical shaft impact crusher for gravel processing and its usage method.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] A vertical shaft impact crusher for gravel processing includes a crushing chamber and a rotor. A blanking chamber is installed at the bottom of the crushing chamber, and a re-crushing and recycling mechanism is arranged inside the blanking chamber;

[0007] The re-crushing and recycling mechanism includes a hollow shaft rotatably connected inside the blanking chamber. A spiral blade is installed outside the hollow shaft. A sleeve adapted to the spiral blade is installed on one side of the rotor close to the spiral blade. A fixing plate is installed on the inner side of the blanking chamber. A plurality of crushing rammers are installed on the upper side of the fixing plate. A chute is opened on the inner side wall of the blanking chamber. A spring is installed inside the chute. The top of the spring is installed with a slider adapted to the chute. A filter plate is installed on one side of the slider close to the fixing plate. A crushing component is arranged inside the crushing chamber.

[0008] Preferably, the size of the crushing chamber is larger than that of the blanking chamber. An installation ring is installed outside the blanking chamber. The installation ring is located at the bottom of the blanking chamber, and a plurality of bolt holes are formed outside the installation ring.

[0009] Preferably, the crushing assembly includes a main shaft rotatably connected inside the crushing chamber. The main shaft penetrates from the inside of the crushing chamber to the side away from the blanking chamber, and a pulley is installed at one end of the main shaft away from the blanking chamber.

[0010] Preferably, the rotor is rotatably connected to the outside of the main shaft. The rotor is located inside the crushing chamber. A plurality of material throwing openings are formed outside the rotor, and a plurality of material returning openings are formed at the bottom of the rotor. The side of the crushing chamber close to the rotor is inclined, and a plurality of crushing plates are installed on the side of the crushing chamber close to the rotor.

[0011] Preferably, a feed bin is installed outside the crushing chamber. The feed bin penetrates from the outside of the crushing chamber to above the rotor, and a hole adapted to the feed bin is formed outside the crushing chamber.

[0012] Preferably, a discharge port is formed on the side of the blanking chamber away from the crushing chamber. The side of the blanking chamber close to the discharge port is inclined, and a material distributing plate is installed inside the discharge port. Both sides of the material distributing plate are inclined.

[0013] Preferably, the size of the material returning opening is smaller than that of the spiral blade. The size of the holes outside the filter plate is adapted to the size of the crushing ram. The filter plate is parallel to the fixing plate, and both the chute and the slider are annularly arranged.

[0014] A method for using a vertical shaft impact crusher for gravel processing includes the following steps:

[0015] Step 1: First, install the vertical shaft impact crusher on the fixed frame through the installation ring and fix it with bolts. Then, connect an external driving device to the pulley through belt drive.

[0016] Step 2: Drive the driving pulley to rotate through the driving device, and then drive the rotor to rotate through the main shaft.

[0017] Step 3: Subsequently, put the stones to be crushed into the rotor rotating at high speed through the feed bin. The stones inside the rotor will be thrown out through the material throwing openings under the action of centrifugal force, and hit the inner side of the crushing chamber or the crushing plates to crush the stones.

[0018] Step 4: The crushed stones will fall onto the filter plate. Under the action of the gravity of the stones, the filter plate will be shaken through the spring. At the same time, the crushing ram on the fixing plate will crush the stones on the filter plate again.

[0019] Step 5: The crushed stones that meet the requirements fall to the bottom of the blanking chamber through the filter plate and are discharged through the discharge port, while the stones that do not meet the requirements move towards the spiral blade under the shaking of the filter plate.

[0020] Step 6: The rotation of the spiral blade drives the stones to move upward, and finally they return to the inside of the rotor through the return port for crushing again.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] 1. Through the coordinated use of the filter plate, chute, spring, slider, spiral blade and return port in the present invention, the crushed stones can be screened, and the operation is simpler. It avoids the need for re-screening after stone crushing and can also prevent blockage of the stones at the discharge port, improving the utilization effect of the stones.

[0023] 2. Through the coordinated use of the filter plate, fixed plate and crushing ram in the present invention, the stones can be crushed again during the screening process, and at the same time, blockage of the filter plate by the stones can be avoided, improving the working efficiency of stone crushing and reducing the energy consumption of stone crushing, which is more energy-saving and environmentally friendly. Brief Description of the Drawings

[0024] Figure 1 It is a three-dimensional structural schematic diagram of a vertical shaft impact crusher for stone processing proposed by the present invention;

[0025] Figure 2 It is an internal structural schematic diagram of the crushing chamber of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the rotor of the present invention;

[0027] Figure 4 It is an internal structural schematic diagram of the blanking chamber of the present invention;

[0028] Figure 5 It is a partial sectional structural schematic diagram of the blanking chamber of the present invention;

[0029] Figure 6 It is Figure 4 The enlarged schematic diagram of the structure at A in

[0030] In the figure: 1. Crushing chamber; 2. Blanking chamber; 3. Installation ring; 4. Main shaft; 5. Pulley; 6. Rotor; 7. Feeding bin; 8. Throwing port; 9. Return port; 10. Crushing plate; 11. Hollow shaft; 12. Spiral blade; 13. Discharge port; 14. Distributing plate; 15. Sleeve; 16. Fixed plate; 17. Crushing ram; 18. Chute; 19. Spring; 20. Slider; 21. Filter plate. Detailed implementation mode

[0031] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0032] Embodiment 1

[0033] As Figures 2-6 shown, a vertical shaft impact crusher for gravel processing proposed by the present invention includes a crushing chamber 1 and a rotor 6. A blanking chamber 2 is installed at the bottom of the crushing chamber 1, and a re-crushing and recycling mechanism is arranged inside the blanking chamber 2;

[0034] The re-crushing and recycling mechanism includes a hollow shaft 11 rotatably connected inside the blanking chamber 2. A spiral blade 12 is installed outside the hollow shaft 11. A sleeve 15 adapted to the spiral blade 12 is installed on one side of the rotor 6 close to the spiral blade 12. A fixing plate 16 is installed on the inner side of the blanking chamber 2. A plurality of crushing rammers 17 are installed on the upper side of the fixing plate 16. A chute 18 is opened on the inner side wall of the blanking chamber 2. A spring 19 is installed inside the chute 18. The top of the spring 19 is installed with a slider 20 adapted to the chute 18. A filter plate 21 is installed on one side of the slider 20 close to the fixing plate 16. A crushing assembly is arranged inside the crushing chamber 1;

[0035] The size of the crushing chamber 1 is larger than that of the blanking chamber 2. An installation ring 3 is installed outside the blanking chamber 2. The installation ring 3 is located at the bottom of the blanking chamber 2, and a plurality of bolt holes are opened outside the installation ring 3. The size of the return port 9 is smaller than that of the spiral blade 12. The size of the holes outside the filter plate 21 is adapted to the size of the crushing rammers 17. The filter plate 21 is parallel to the fixing plate 16. The chute 18 and the slider 20 are both arranged in a ring shape.

[0036] The working principle of a vertical shaft impact crusher for gravel processing based on Embodiment 1 is as follows: During operation, the crushed stone falls from the inside of the crushing chamber 1 into the blanking chamber 2. Since a fixed plate 16 is installed inside the blanking chamber 2, and a plurality of crushing rods 17 are installed outside the fixed plate 16, an annular chute 18 is provided on the inner side wall of the blanking chamber 2. A slider 20 is slidably connected inside the chute 18, and a plurality of springs 19 are jointly installed between the slider 20 and the chute 18. A filter plate 21 parallel to the fixed plate 16 is installed outside the slider 20. The outer holes of the filter plate 21 are adapted to the crushing rods 17. That is, when the crushed stone falls onto the filter plate 21, the filter plate 21 will be driven to vibrate up and down in the blanking chamber 2 under the action of the gravity of the stone itself and the springs 19. When the filter plate 21 moves downward, the crushing rods 17 will crush the stone on the filter plate 21 again through the outer holes of the filter plate 21. And while vibrating, the stones that meet the crushing requirements will fall through the holes outside the filter plate 21;

[0037] Since a hollow shaft 11 is rotatably connected inside the blanking chamber 2, a spiral blade 12 is installed outside the hollow shaft 11, and a sleeve 15 adapted to the spiral blade 12 is installed on one side of the rotor 6 close to the spiral blade 12. At this time, the stones that do not meet the crushing requirements fall onto the spiral blade 12 through the filter plate 21. Driven by the rotation of the spiral blade 12, the stones are driven to move upward in the sleeve 15 and enter the inside of the rotor 6 through the return port 9 for crushing again. Repeating the above process makes the crushing effect of the stones better, the operation simpler, avoids the need for re-screening after the stones are crushed, and can also prevent the stones from clogging at the discharge port 13, improving the use effect of the stones. At the same time, it can prevent the stones from clogging the filter plate 21, improving the working efficiency of stone crushing, and also reducing the energy consumption of stone crushing, making it more energy-saving and environmentally friendly.

[0038] Embodiment 2

[0039] As Figures 1-3 shown, based on Embodiment 1, the crushing assembly includes a main shaft 4 rotatably connected inside the crushing chamber 1. The main shaft 4 penetrates from the inside of the crushing chamber 1 to the side far from the blanking chamber 2. A pulley 5 is installed at one end of the main shaft 4 far from the blanking chamber 2. The rotor 6 is rotatably connected outside the main shaft 4. The rotor 6 is located inside the crushing chamber 1. A plurality of material throwing ports 8 are provided on the outside of the rotor 6, and a plurality of return ports 9 are provided at the bottom of the rotor 6. One side of the crushing chamber 1 close to the rotor 6 is inclined, and a plurality of crushing plates 10 are installed on one side of the crushing chamber 1 close to the rotor 6 to facilitate the falling of the stones;

[0040] An inlet bin 7 is installed outside the crushing chamber 1. The inlet bin 7 penetrates from the outside of the crushing chamber 1 to above the rotor 6. A hole adapted to the inlet bin 7 is provided on the outside of the crushing chamber 1. A discharge port 13 is provided on one side of the blanking chamber 2 away from the crushing chamber 1. One side of the blanking chamber 2 close to the discharge port 13 is inclined. A material distributing plate 14 is installed inside the discharge port 13, and both sides of the material distributing plate 14 are inclined.

[0041] In this embodiment, first, an external driving device drives the pulley 5 and the main shaft 4 to rotate at a high speed. The stones to be crushed are discharged into the inside of the rotor 6 through the inlet bin 7. The stones inside the rotor 6 will be thrown out through the throwing port 8 under the action of centrifugal force, and hit the inner side wall of the crushing chamber 1 and the crushing plate 10 to crush the stones. The crushed stones then fall into the blanking chamber 2, are screened by the filter plate 21, and finally are discharged through the discharge port 13 at the bottom of the blanking chamber 2. Under the action of the material distributing plate 14, the blockage of the stones at the discharge port 13 can be reduced.

[0042] Embodiment Three

[0043] The present invention also proposes a method for using a vertical shaft impact crusher for gravel processing, including the following steps:

[0044] Step 1, first install the vertical shaft impact crusher on the fixed frame through the mounting ring 3 and fix it with bolts. Then, connect the external driving device and the pulley 5 through belt drive;

[0045] Step 2, drive the driving pulley 5 to rotate through the driving device, and then drive the rotor 6 to rotate through the main shaft 4;

[0046] Step 3, then put the stones to be crushed into the rotor 6 that is rotating at a high speed through the inlet bin 7. The stones inside the rotor 6 will be thrown out through the throwing port 8 under the action of centrifugal force, and hit the inner side or the crushing plate 10 of the crushing chamber 1 to crush the stones;

[0047] Step 4, the crushed stones will fall onto the filter plate 21. Under the action of the gravity of the stones, the filter plate 21 will be driven to vibrate by the spring 19. At the same time, the crushing ram 17 on the fixing plate 16 will crush the stones on the filter plate 21 again;

[0048] Step 5, the stones that meet the crushing requirements will fall to the bottom of the blanking chamber 2 through the filter plate 21 and be discharged through the discharge port 13. The stones that do not meet the requirements will move towards the spiral blade 12 under the vibration of the filter plate 21;

[0049] Step 6, the rotation of the spiral blade 12 will drive the stones to move upward, and finally return to the inside of the rotor 6 through the return port 9 for crushing again.

[0050] The above are only the preferred specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention should cover within the protection scope of the present invention any equivalent replacement or change made according to the technical solution and inventive concept of the present invention.

Claims

1. A vertical shaft impact crusher for gravel processing, comprising a crushing chamber (1) and a rotor (6), characterized in that, A blanking chamber (2) is installed at the bottom of the crushing chamber (1), and a re-crushing and recycling mechanism is arranged inside the blanking chamber (2); The re-crushing and recycling mechanism includes a hollow shaft (11) rotatably connected inside the blanking chamber (2), a spiral blade (12) is installed outside the hollow shaft (11), a sleeve (15) adapted thereto is installed on one side of the rotor (6) close to the spiral blade (12), a fixing plate (16) is installed on the inner side of the blanking chamber (2), a plurality of crushing rammers (17) are installed on the upper side of the fixing plate (16), a chute (18) is formed on the inner side wall of the blanking chamber (2), a spring (19) is installed inside the chute (18), a slider (20) adapted to the chute (18) is installed at the top of the spring (19), a filter plate (21) is installed on one side of the slider (20) close to the fixing plate (16), and a crushing assembly is arranged inside the crushing chamber (1); The size of the crushing chamber (1) is larger than that of the blanking chamber (2), an installation ring (3) is installed outside the blanking chamber (2), the installation ring (3) is located at the bottom of the blanking chamber (2), and a plurality of bolt holes are formed outside the installation ring (3); The crushing assembly includes a main shaft (4) rotatably connected inside the crushing chamber (1), the main shaft (4) penetrates from the inside of the crushing chamber (1) to the side far from the blanking chamber (2), and a pulley (5) is installed at one end of the main shaft (4) far from the blanking chamber (2); The rotor (6) is rotatably connected to the outside of the main shaft (4), the rotor (6) is located inside the crushing chamber (1), a plurality of material throwing ports (8) are formed outside the rotor (6), a plurality of material return ports (9) are formed at the bottom of the rotor (6), one side of the crushing chamber (1) close to the rotor (6) is inclined, and a plurality of crushing plates (10) are installed on one side of the crushing chamber (1) close to the rotor (6); A feed bin (7) is installed outside the crushing chamber (1), the feed bin (7) penetrates from the outside of the crushing chamber (1) to above the rotor (6), and a hole adapted to the feed bin (7) is formed outside the crushing chamber (1).

2. The vertical shaft impact crusher for gravel processing according to claim 1, wherein, A discharge port (13) is formed on one side of the blanking chamber (2) far from the crushing chamber (1), one side of the blanking chamber (2) close to the discharge port (13) is inclined, a material distribution plate (14) is installed inside the discharge port (13), and both sides of the material distribution plate (14) are inclined.

3. The vertical shaft impact crusher for gravel processing according to claim 2, characterized in that, The size of the material return port (9) is smaller than that of the spiral blade (12), the size of the external holes of the filter plate (21) is adapted to that of the crushing rammers (17), the filter plate (21) is parallel to the fixing plate (16), and both the chute (18) and the slider (20) are annularly arranged.

4. The method for using a vertical shaft impact crusher for gravel processing according to claim 3, characterized in that, It includes the following steps: Step 1, first install the vertical shaft impact crusher on the fixed frame through the installation ring (3) and fix it with bolts, and then connect the external driving device and the pulley (5) through belt drive; Step 2: Drive the pulley (5) to rotate through the driving device, and then drive the rotor (6) to rotate through the main shaft (4); Step 3: Subsequently, put the stones to be crushed into the rotor (6) that is rotating at high speed through the feed bin (7). The stones inside the rotor (6) will be thrown out through the throwing port (8) under the action of centrifugal force, and hit the inner side of the crushing chamber (1) or the crushing plate (10) to crush the stones; Step 4: The crushed stones will fall onto the filter plate (21). Under the action of the gravity of the stones, the filter plate (21) will be driven to vibrate through the spring (19). At the same time, the crushing ram (17) on the fixed plate (16) will crush the stones on the filter plate (21) again; Step 5: The stones that meet the crushing requirements will fall to the bottom of the blanking chamber (2) through the filter plate (21) and be discharged through the discharge port (13). The stones that do not meet the requirements will move towards the side of the spiral blade (12) under the vibration of the filter plate (21); Step 6: The rotation of the spiral blade (12) will drive the stones to move upward, and finally return to the inside of the rotor (6) through the return port (9) for crushing again.

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