Ball mill for gas ash treatment

Abstract

This invention belongs to the field of ball mill technology and discloses a ball mill for gas ash treatment, including a base plate; a discharge assembly; a ball mill assembly; a dust removal assembly; a transmission assembly; a reduction assembly; and a feeding assembly. This invention, through the installation of a newly designed feeding assembly, allows the raw material to slide continuously within the spiral plate. Under the uniform rotation of the circular shaft, the raw material passes through the spiral layer of the spiral plate and enters the double-ended bend. At this point, a blower fan is activated, sending air through an L-shaped pipe to the bend of the double-ended bend, agitating the raw material there and enabling it to quickly fall into the outer shell. This solves the problem of insufficient feeding speed caused by the use of uniform feeding equipment in existing equipment, and the shortened service life of the grinding balls and liners due to idle rotation of the grinding balls inside the ball mill. Furthermore, the installation of the dust removal assembly solves the problem of dust generated during the grinding process, reducing the contact between the material and the grinding balls, thus preventing a decrease in grinding efficiency.

Description

Technical Field

[0001] This invention belongs to the field of ball mill technology, specifically a ball mill for treating gas ash. Background Technology

[0002] Gas ash, also known as furnace dust, is a fine-particle solid furnace charge carried out by the rising gas during the blast furnace ironmaking process. It is mainly composed of a mixture of mineral powder and coke powder. After being recovered, it can be used as a sintering material in sintering plants, and can also be used as a raw material for cement production. Gas ash is usually treated using a ball mill, which uses grinding balls filled inside a high-speed rotating cylinder to impact and grind the fly ash, turning large particles into fine powder, thereby changing its physical size and state.

[0003] During the operation of a ball mill, the loading of grinding balls should not be too large or too small, usually around 30% of the cylinder volume. To avoid clogging or insufficient grinding caused by excessive loading at one time, existing equipment often uses uniform feeding equipment. However, uniform feeding can result in insufficient feeding speed. When the grinding balls inside the ball mill are running idle, the collision and friction between the grinding balls and between the grinding balls and the mill cylinder liner will intensify. Without the buffer and barrier of the material, the service life of the grinding balls and liners will be shortened. Furthermore, when the dust generated during the grinding process fills the cavity, it also reduces the effective contact and collision opportunities between the material and the grinding balls, leading to a decrease in grinding efficiency. Summary of the Invention

[0004] The purpose of this invention is to provide a ball mill for treating gas ash, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a ball mill for treating gas ash, comprising a base plate, a discharge assembly fixedly installed on the top of the base plate, and a linkage dust removal ball mill mechanism, comprising a ball mill assembly, the ball mill assembly fixedly installed on the right side of the discharge assembly, a dust removal assembly fixedly installed on the top of the ball mill assembly, a transmission assembly fixedly installed on the right side of the ball mill assembly, and a reduction assembly fixedly connected to the back of the transmission assembly;

[0006] The ball mill assembly includes an outer shell, three connectors are fixedly installed on the front and rear sides of the outer shell, springs are elastically connected inside the three sets of connectors, round seats are fixedly connected to the tail ends of the three sets of springs, and the bottom of the three sets of round seats is fixedly connected to the base plate. An inner shell is rotatably installed inside the outer shell, and multiple lining plates are evenly opened on the inner wall of the inner shell. Multiple small holes are installed through the top of the inner shell.

[0007] The feeding assembly is inserted into the middle of the transmission assembly. The feeding assembly includes a double-ended bend, with two feeding pipes inserted into the left end of the double-ended bend. A round shaft is rotatably installed inside the top end of the double-ended bend, and a spiral plate is fixedly connected to the outer edge of the round shaft. An L-shaped tube is fixedly connected to the middle position of the double-ended bend, and a round tube is fixedly connected to the top end of the L-shaped tube. A blower fan is fixedly installed inside the round tube.

[0008] Preferably, a vertical rod is fixedly connected to the bottom of the double-ended bend and fixedly connected to the top of the base plate. The left end of the L-shaped tube inside the double-ended bend is opposite to the two feed pipes. The blower fan is driven by an electric motor.

[0009] Preferably, the discharge assembly includes a support base, a discharge pipe is installed through the upper middle part of the support base, four arc-shaped strips are arranged in annular array on the inner wall of the discharge pipe, a sun gear is fixedly connected to the outer right edge of the discharge pipe, three planet gears are meshed on the outer edge of the sun gear, a toothed ring is meshed on the outer edge of the three planet gears, a support block is fixedly connected to the bottom side of the toothed ring, the support block is fixedly connected to the base plate, and the right end of the discharge pipe is fixedly connected to the left end of the inner shell pipe.

[0010] Preferably, the ball mill assembly includes a shell, three connectors are fixedly installed on both the front and rear sides of the shell, springs are elastically connected inside each of the three connectors, round seats are fixedly connected to the tail ends of each of the three springs, and the bottoms of each of the three round seats are fixedly connected to a base plate. An inner shell is rotatably installed inside the shell, the left end pipe of the inner shell is fixedly connected to the right end of the discharge pipe, multiple liners are evenly provided on the inner wall of the inner shell, and multiple small holes are installed through the top of the inner shell.

[0011] Preferably, the dust removal component includes a rectangular block, which is fixedly installed on the top of the housing. Two exhaust fans are installed inside the rectangular block, both of which are driven by electric motors. Square plates are inserted into the left and right sides of the rectangular block, and hydraulic rods are fixedly connected to the outer sides of the two square plates. The fixed ends of the two sets of hydraulic rods are fixedly connected to the housing.

[0012] Preferably, the transmission assembly includes two support rods, which are fixedly installed on the right side of the outer casing. An annular guard plate is fixedly installed on the top of the two support rods. A large gear is movably engaged inside the annular guard plate. The inner side of the large gear is fixedly connected to the right side pipe of the inner casing. A small gear meshes with the outer edge of the large gear.

[0013] The deceleration assembly includes a square shell, which is fixedly installed on the right side of the pinion. A first gear is rotatably installed inside the square shell. The left end of the rotation shaft of the first gear is fixedly connected to the pinion. A second gear is sleeved on the outer edge of the right side of the rotation shaft of the first gear. A fourth gear meshes with the outer edge of the first gear. A third gear meshes with the outer edge of the second gear. A motor is fixedly connected to the right end of the rotation shaft of the third gear. The motor is fixedly connected to the base plate.

[0014] The beneficial effects of this invention are as follows:

[0015] 1. This invention, through the installation of a newly designed feeding component, allows the raw material to slide continuously within the spiral plate. Under the uniform rotation of the circular shaft, the raw material passes through the spiral layer of the spiral plate and enters the double-headed bend. At this point, the blower is activated, sending air through the L-shaped pipe to the bend of the double-headed bend, agitating the raw material there and enabling it to fall rapidly into the outer shell. This solves the problem that existing equipment often uses uniform feeding devices, but uniform feeding results in insufficient feeding speed, and the grinding balls inside the ball mill will shorten the service life of the grinding balls and liners when they idle.

[0016] 2. This invention incorporates a dust removal component. When dust rises from the grinding inside the inner shell, the two sets of hydraulic rods shorten their stroke. At this time, the two square plates move to the left and right sides of the rectangular block, exposing the duct where the fans are located. The two exhaust fans are then activated, generating upward airflow. As the inner shell rotates continuously, the multiple vents overlap with the duct of the rectangular block each time, thus expelling some of the dust from the inner shell. This solves the problem of dust generated during the grinding process. When the dust fills the cavity, it also reduces the effective contact and collision opportunities between the material and the grinding balls, leading to a decrease in grinding efficiency.

[0017] 3. The present invention has a discharge component with a planetary gear set. When the inner shell is driven to rotate by the reduction component and the transmission component, the discharge component on the left side will also rotate in the support seat. The ground material will be guided to discharge through the arc-shaped strip installed around it. The sun gear and three meshing planet gears rotate in the fixed gear ring, which allows the discharge pipe to withstand a large power and torque load, disperses the load, and reduces the pressure on the arc-shaped strip during discharge. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 For the present invention Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0020] Figure 3 This is a schematic diagram of the material discharge assembly structure of the present invention;

[0021] Figure 4 This is a schematic diagram of the ball mill assembly structure of the present invention;

[0022] Figure 5 This is a schematic diagram of the transmission component structure of the present invention;

[0023] Figure 6 This is a schematic diagram of the deceleration component structure of the present invention;

[0024] Figure 7 This is a schematic diagram of the feeding assembly structure of the present invention.

[0025] In the diagram: 1. Base plate; 2. Discharge assembly; 3. Ball mill assembly; 4. Dust removal assembly; 5. Transmission assembly; 6. Reduction assembly; 7. Feeding assembly; 21. Support base; 22. Discharge pipe; 23. Arc-shaped strip; 24. Sun gear; 25. Planetary gear; 26. Gear ring; 27. Support block; 31. Outer shell; 32. Connector; 33. Spring; 34. Round seat; 35. Inner shell; 36. Liner plate; 41. Rectangular block ; 42. Exhaust fan; 43. Square plate; 44. Hydraulic rod; 51. Support rod; 52. Annular guard plate; 53. Large gear; 54. Small gear; 61. Square shell; 62. First gear; 63. Second gear; 64. Third gear; 65. Fourth gear; 66. Motor; 71. Double-headed bend; 72. Feed pipe; 73. Round shaft; 74. Spiral plate; 75. L-shaped tube; 76. Round tube; 77. Blower fan. Detailed Implementation

[0026] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0027] like Figures 1 to 7 As shown, this embodiment of the invention provides a ball mill for treating gas ash, including a base plate 1, a discharge assembly 2 fixedly installed on the top of the base plate 1, and a linked dust removal ball mill mechanism, which includes a ball mill assembly 3, the ball mill assembly 3 fixedly installed on the right side of the discharge assembly 2, a dust removal assembly 4 fixedly installed on the top of the ball mill assembly 3, a transmission assembly 5 fixedly installed on the right side of the ball mill assembly 3, and a reduction assembly 6 fixedly connected to the back of the transmission assembly 5.

[0028] The ball mill assembly 3 includes a housing 31. Three connectors 32 are fixedly installed on the front and rear sides of the housing 31. Springs 33 are elastically connected inside each of the three connectors 32. Round seats 34 are fixedly connected to the tail ends of each of the three springs 33. The bottom of each of the three round seats 34 is fixedly connected to the base plate 1. An inner housing 35 is rotatably installed inside the housing 31. Multiple liner plates 36 are evenly opened on the inner wall of the inner housing 35. Multiple small holes are installed through the top of the inner housing 35.

[0029] Feeding assembly 7 is inserted into the middle of transmission assembly 5. Feeding assembly 7 includes a double-ended bend 71. Two feed pipes 72 are inserted into the left end of the double-ended bend 71. A round shaft 73 is rotatably installed inside the top end of the double-ended bend 71. An electric motor is installed inside the round shaft 73, which can actively and uniformly rotate. A spiral plate 74 is fixedly connected to the outer edge of the round shaft 73. An L-shaped tube 75 is fixedly connected to the middle position of the double-ended bend 71. A round tube 76 is fixedly connected to the top end of the L-shaped tube 75. A blower fan 77 is fixedly installed inside the round tube 76. A vertical rod is fixedly connected to the bottom of the double-ended bend 71 and fixedly connected to the top of the base plate 1. The left end of the L-shaped tube 75 inside the double-ended bend 71 is opposite to the two feed pipes 72. The blower fan 77 is driven by an electric motor.

[0030] The raw material slides continuously inside the spiral plate 74. Under the uniform rotation of the circular shaft 73, the raw material passes through the spiral layer of the spiral plate 74 and enters the double-headed bend 71. At this time, the blower fan 77 is started. The blower fan 77 rotates, absorbs the air from the top, and sends the air through the L-shaped pipe 75 to the bend of the double-headed bend 71 to blow the raw material at this point. The air duct of the L-shaped pipe 75 is located in the middle of the two feed pipes 72, which can blow the raw material falling into the double-headed bend 71, so that the raw material falls quickly into the outer shell 31. This solves the problem that existing equipment often uses uniform feeding equipment for feeding, but uniform feeding will result in insufficient feeding speed. When the grinding balls in the ball mill are idle, the service life of the grinding balls and the liner 36 will be shortened.

[0031] The discharge assembly 2 includes a support base 21, a discharge pipe 22 is installed through the upper middle part of the support base 21, four arc-shaped strips 23 are arranged in a ring on the inner wall of the discharge pipe 22, a sun gear 24 is fixedly connected to the outer right edge of the discharge pipe 22, three planet gears 25 are meshed on the outer edge of the sun gear 24, a toothed ring 26 is meshed on the outer edge of the three planet gears 25, a support block 27 is fixedly connected to the bottom side of the toothed ring 26, the support block 27 is fixedly connected to the base plate 1, and the right end of the discharge pipe 22 is fixedly connected to the left end of the inner shell 35.

[0032] When the inner shell 35 is driven to rotate by the reduction assembly 6 and the transmission assembly 5, the discharge assembly 2 on its left side will also rotate in the support seat 21. The ground material will be guided to discharge through the arc-shaped strip 23 installed around it. The sun gear 24 and three meshing planet gears 25 rotate in the fixed gear ring 26, which allows the discharge pipe 22 to withstand a large power and torque load, disperses the load, and reduces the pressure on the arc-shaped strip 23 during discharge.

[0033] The ball mill assembly 3 includes a shell 31, with three connectors 32 fixedly installed on both the front and rear sides of the shell 31. Each of the three connectors 32 is elastically connected to a spring 33, and the tail ends of each of the three springs 33 are fixedly connected to a round seat 34. The bottom of each of the three round seats 34 is fixedly connected to the base plate 1. An inner shell 35 is rotatably installed inside the shell 31. The left end of the inner shell 35 is fixedly connected to the right end of the discharge pipe 22. Multiple liners 36 are evenly provided on the inner wall of the inner shell 35. Multiple grinding balls are placed inside the inner shell 35 beforehand. Multiple small holes are installed through the top of the inner shell 35, and the multiple small holes are opposite to the ducts of the two rectangular blocks 41.

[0034] The inner shell 35 rotates within the outer shell 31. After the raw material is ground by the collision of the grinding balls, its diameter will continuously decrease. When the equipment is rotating and grinding, the grinding balls are in different positions within the inner shell 35, which will generate centrifugal force. At this time, the multiple springs 33 that are movably hinged to the outside of the outer shell 31 through the connecting piece 32 can absorb part of the centrifugal force.

[0035] The dust removal component 4 includes a rectangular block 41, which is fixedly installed on the top of the housing 31. Two exhaust fans 42 are installed inside the rectangular block 41, and both exhaust fans 42 are driven by electric motors. Square plates 43 are inserted into the left and right sides of the rectangular block 41. Hydraulic rods 44 are fixedly connected to the outer sides of the two square plates 43. The fixed ends of the two sets of hydraulic rods 44 are fixedly connected to the housing 31.

[0036] When dust rises from the grinding inside the inner shell 35, the two sets of hydraulic rods 44 shorten their stroke. At this time, the two square plates 43 move to the left and right sides of the rectangular block 41, exposing the duct where the fan 42 is located. Then, the two exhaust fans 42 are activated to generate airflow from bottom to top. As the inner shell 35 rotates continuously, each time the multiple vents it opens overlap with the duct of the rectangular block 41, some of the dust can be discharged from the inner shell 35. This solves the problem of dust generated during the grinding process. When the dust fills the cavity, it also reduces the effective contact and collision opportunities between the material and the grinding balls, leading to a decrease in grinding efficiency.

[0037] The transmission assembly 5 includes two support rods 51, which are fixedly installed on the right side of the outer shell 31. An annular guard plate 52 is fixedly installed on the top of the two support rods 51. A large gear 53 is movably engaged inside the annular guard plate 52. The inner side of the large gear 53 is fixedly connected to the right side pipe of the inner shell 35. A small gear 54 meshes with the outer edge of the large gear 53.

[0038] After being driven by the speed reduction assembly 6, the small gear 54 rotates and then transmits the rotational force to the large gear 53, at which point the inner shell 35 can rotate on the outer shell 31.

[0039] The reduction gear assembly 6 includes a square shell 61, which is fixedly installed on the right side of the pinion 54. A first gear 62 is rotatably installed inside the square shell 61. The left end of the rotating shaft of the first gear 62 is fixedly connected to the pinion 54. A second gear 63 is sleeved on the outer edge of the right side of the rotating shaft of the first gear 62. A fourth gear 65 meshes with the outer edge of the first gear 62. A third gear 64 meshes with the outer edge of the second gear 63. A motor 66 is fixedly connected to the right end of the rotating shaft of the third gear 64. The motor 66 is fixedly connected to the base plate 1.

[0040] The motor 66 rotates clockwise, first driving the third gear 64 inside the square shell 61 to rotate. The third gear 64 transmits the rotational force to the first gear 62 through the second gear 63, and then through the fourth gear 65 to reduce and amplify the torque before transmitting it to the transmission component 5.

[0041] Working principle:

[0042] When using this invention, the raw material to be ball-milled is first placed into the feeding assembly 7. The raw material will slide continuously in the spiral plate 74. Under the uniform rotation of the circular shaft 73, the raw material will pass through the spiral layer of the spiral plate 74 and enter the double-headed bend 71. At this time, the blower fan 77 is started. The blower fan 77 rotates, absorbs the air from the top, and sends the air through the L-shaped pipe 75 to the bend of the double-headed bend 71 to blow the raw material at this point. The air duct of the L-shaped pipe 75 is located in the middle of the two feeding pipes 72, which can blow the raw material falling into the double-headed bend 71, so that the raw material falls quickly into the outer shell 31.

[0043] When the raw material enters the inner shell 35, the reduction gear 6 is activated, and the motor 66 rotates clockwise. First, it drives the third gear 64 inside the square shell 61 to rotate. The third gear 64 transmits the rotational force to the first gear 62 through the second gear 63, and then through the fourth gear 65 for a reduction and torque amplification before transmitting it to the small gear 54. The small gear 54 then transmits the rotational force to the large gear 53. At this time, the inner shell 35 can rotate within the outer shell 31. Multiple grinding balls are placed inside the inner shell 35 beforehand. After the raw material is ground by the collision of the grinding balls, its diameter will continuously decrease. When the equipment is rotating and grinding, the grinding balls are in different positions inside the inner shell 35, which will generate centrifugal force. At this time, multiple springs 33 that are movably hinged to the outside of the outer shell 31 through the connecting piece 32 can absorb part of the centrifugal force.

[0044] When the grinding inside the inner shell 35 produces floating dust, the two sets of hydraulic rods 44 shorten their stroke. At this time, the two square plates 43 move to the left and right sides of the rectangular block 41, exposing the duct where the fan 42 is located. At this time, the two exhaust fans 42 are started to generate wind force from bottom to top. When the inner shell 35 is rotating continuously, each time the multiple vents it opens overlap with the position of the duct of the rectangular block 41, some of the dust can be discharged from the inner shell 35.

[0045] When the inner shell 35 is driven to rotate by the reduction assembly 6 and the transmission assembly 5, the discharge assembly 2 on its left side will also rotate in the support seat 21. The ground material will be guided out through the arc-shaped strip 23 installed around it. The sun gear 24 and the three meshing planet gears 25 rotate in the fixed gear ring 26, which allows the discharge pipe 22 to withstand a large power and torque load, disperses the load, and reduces the pressure on the arc-shaped strip 23 during discharge. The process ends here.

[0046] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0047] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A ball mill for treating gas ash, comprising a base plate (1), characterized in that: The top of the base plate (1) is fixedly installed with a discharge assembly (2), and also includes, The linkage dust removal ball mill mechanism includes a ball mill assembly (3), which is fixedly installed on the right side of the discharge assembly (2), and a dust removal assembly (4) is fixedly installed on the top of the ball mill assembly (3). A transmission assembly (5) is fixedly installed on the right side of the ball mill assembly (3), and a speed reduction assembly (6) is fixedly connected to the back of the transmission assembly (5). The ball mill assembly (3) includes a shell (31), and three connectors (32) are fixedly installed on the front and rear sides of the shell (31). Each connector (32) is elastically connected to a spring (33). The tail end of each spring (33) is fixedly connected to a round seat (34). The bottom of each round seat (34) is fixedly connected to the base plate (1). An inner shell (35) is rotatably installed inside the shell (31). Multiple liners (36) are evenly provided on the inner wall of the inner shell (35). Multiple small holes are installed through the top of the inner shell (35). Feeding assembly (7), which is inserted into the middle of the transmission assembly (5), includes a double-headed bend (71), two feed pipes (72) are inserted into the left end of the double-headed bend (71), a round shaft (73) is rotatably installed inside the top end of the double-headed bend (71), a spiral plate (74) is fixedly connected to the outer edge of the round shaft (73), an L-shaped pipe (75) is fixedly connected to the middle position of the double-headed bend (71), a round pipe (76) is fixedly connected to the top end of the L-shaped pipe (75), and a blower fan (77) is fixedly installed inside the round pipe (76). The discharge assembly (2) includes a support base (21), and a discharge pipe (22) is installed through the upper middle part of the support base (21). The inner wall of the discharge pipe (22) has four arc-shaped strips (23) arranged in a ring. A sun gear (24) is fixedly connected to the outer right edge of the discharge pipe (22). Three planet gears (25) are meshed on the outer edge of the sun gear (24). A toothed ring (26) is meshed on the outer edge of the three planet gears (25). A support block (27) is fixedly connected to the bottom side of the toothed ring (26). The support block (27) is fixedly connected to the base plate (1). The dust removal component (4) includes a rectangular block (41), which is fixedly installed on the top of the outer shell (31). Two exhaust fans (42) are installed inside the rectangular block (41), and both exhaust fans (42) are driven by electric motors. Square plates (43) are inserted into the left and right sides of the rectangular block (41), and hydraulic rods (44) are fixedly connected to the outer sides of the two square plates (43). The fixed ends of the two sets of hydraulic rods (44) are fixedly connected to the outer shell (31).

2. The ball mill for treating gas ash according to claim 1, characterized in that: The bottom of the double-headed bend (71) is fixedly connected to a vertical rod and is fixedly connected to the top of the base plate (1). The left end of the L-shaped tube (75) inside the double-headed bend (71) is opposite to the two feed pipes (72). The blower fan (77) is driven by an electric motor.

3. The ball mill for treating gas ash according to claim 1, characterized in that: The transmission assembly (5) includes two support rods (51), which are fixedly installed on the right side of the outer shell (31). An annular guard plate (52) is fixedly installed on the top of the two support rods (51). A large gear (53) is movably engaged inside the annular guard plate (52). The inner side of the large gear (53) is fixedly connected to the right side pipe of the inner shell (35). A small gear (54) meshes with the outer edge of the large gear (53).

4. The ball mill for treating gas ash according to claim 1, characterized in that: The deceleration assembly (6) includes a square shell (61), which is fixedly installed on the right side of the pinion (54). A first gear (62) is rotatably installed inside the square shell (61). The left end of the rotating shaft of the first gear (62) is fixedly connected to the pinion (54). A second gear (63) is sleeved on the outer edge of the right side of the rotating shaft of the first gear (62). A fourth gear (65) meshes with the outer edge of the first gear (62). A third gear (64) meshes with the outer edge of the second gear (63). A motor (66) is fixedly connected to the right end of the rotating shaft of the third gear (64). The motor (66) is fixedly connected to the base plate (1).

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