A solid waste-based cementitious material grinding device for ultra-low carbon concrete

Abstract

The present invention relates to the technical field of concrete production, and proposes a solid waste-based cementitious material grinding device for ultra-low carbon concrete, comprising a base support and a grinding cylinder rotatably arranged on the outer surface of the base support, one end of the base support is fixedly connected with a feed cylinder corresponding to the feed port of the grinding cylinder, and a toggle structure is arranged inside the feed cylinder and the grinding cylinder, so that a discharge opening is opened at one end of the grinding cylinder, and a circulating air structure is arranged inside the grinding cylinder near the discharge opening, and a plurality of groups of metal balls for grinding are arranged inside the grinding cylinder. Through the above technical scheme, the problem that the existing solid waste-based cementitious material grinding device for ultra-low carbon concrete has a poor grinding effect on solid waste-based cementitious materials is solved, and the problem that the balls inside are usually forced to rub against each other for grinding only by the rotation of the ball mill shell, but the friction effect between the balls in this state is not good enough can be brought about, and better use effect can be brought about, and the application prospect is broad.

Description

Technical Field

[0001] The present invention relates to the technical field of concrete production, and in particular to a solid waste-based cementitious material grinding device for ultra-low carbon concrete. Background Art

[0002] The main components of concrete include cement, aggregate, water and admixtures, which are mixed and stirred. Solid waste-based cementitious materials are a new type of material that mixes solid waste with cement, lime, gypsum and other cementitious materials. In concrete production, the raw materials for grinding mainly refer to the above materials, which are ground into powders of different fineness by grinding the raw material particles or crushed materials.

[0003] After searching, the authorization announcement number is CN115591622B, which is a ball mill for cement production. The invention discloses a ball mill for cement production. When the cement ball milling operation is performed, the No. 1 driving motor drives the outer rotating cylinder to rotate. During the rotation process, the steel balls are lifted in height under the action of the rotation. During the lifting process, the No. 2 driving motor is started, and the No. 2 driving motor drives the lifting pieces on the outer sides of each rotating ring plate to lift the steel balls in contact, thereby increasing the upper limit of the lifting height of the steel balls. At the same time, the rotating ring plates are intermittently distributed, so that there is a height difference between the steel balls. When the steel balls rotate to the highest point, they impact the cement, and the steel balls at different height levels cooperate with each other to improve the impact grinding effect.

[0004] However, the above-mentioned existing solid waste-based cementitious material grinding device for ultra-low carbon concrete is not very effective in grinding solid waste-based cementitious material raw materials. Usually, the grinding is performed only by rotating the outer shell of the ball mill to force the balls inside to rub against each other, but the friction effect between the balls in this state is not good enough. For this reason, we propose a solid waste-based cementitious material grinding device for ultra-low carbon concrete. Summary of the invention

[0005] The present invention proposes a solid waste-based cementitious material grinding device for ultra-low carbon concrete, which solves the problem mentioned in the background technology that the existing solid waste-based cementitious material grinding device for ultra-low carbon concrete has poor grinding effect on solid waste-based cementitious raw materials, usually only through the rotation of the ball mill outer shell to force the balls inside to rub against each other for grinding, but the friction effect between the balls in this state is not good enough.

[0006] The technical solution of the present invention is as follows:

[0007] A solid waste-based cementitious material grinding device for ultra-low carbon concrete, comprising a base support and a grinding cylinder rotatably arranged on the outer surface of the base support, one end of the base support corresponding to the feeding port of the grinding cylinder is fixedly connected with a feeding cylinder, a toggle structure is arranged inside the feeding cylinder and the grinding cylinder, so that a discharge opening is opened at one end of the grinding cylinder, a circulating air structure is arranged inside the grinding cylinder near the discharge opening, and a plurality of groups of metal balls for grinding are arranged inside the grinding cylinder;

[0008] The toggle structure includes an active roller rotatably connected to the inside of the feed barrel, the active roller extends to the inside of the grinding barrel, the outer surface of the active roller is fixedly connected with a conveying blade corresponding to the feed barrel, the inside of the grinding barrel is fixedly connected with a rectangular plate, the inside of the rectangular plate is provided with a lifting hole, the outer surface of the active roller is fixedly connected with a stirring rod corresponding to the grinding barrel, and one end of the stirring rod is fixedly connected to a toggle rod.

[0009] As a further technical solution of the present invention, one end of the feed cylinder is fixedly connected to a feed motor, the upper end of the feed cylinder is fixedly connected to a feed frame, the outer surface of the grinding cylinder is fixedly connected to a driven gear, the outer surface of the driven gear is meshingly connected to a driving gear, and the outer surface of the base bracket is fixedly connected to a main motor at a position corresponding to the base bracket.

[0010] As a further technical solution of the present invention, the circulating air structure includes a sleeve movably sleeved on the outer surface of the active roller, the upper end of the sleeve is fixedly connected to a connecting pipe, a fixed bracket is fixedly connected between the connecting pipe and the base bracket, the upper end of the connecting pipe is fixedly connected to an outer shell, a fan is movably connected inside the outer shell, an air outlet is provided on the outer surface of the active roller, a connecting pipe is fixedly connected to the upper end of the outer shell, connecting holes are provided at the upper and lower ends of the outer shell, an air inlet pipe is fixedly connected to the upper end of the connecting pipe, an air inlet hole is provided at the lower end of the air inlet pipe, a connecting hole is provided on the outer surface of the active roller corresponding to the sleeve, and an isolation plate is movably provided on the inner wall surface of the lower end of the active roller.

[0011] As a further technical solution of the present invention, the feed frame is connected to the inside of the feed barrel for feeding, the conveying blades are used for rotating feeding, the number of the rectangular plates is several groups and distributed in a ring array, several groups of the rectangular plates on a vertical section are a whole, and several wholes are distributed at intervals along the length direction of the active roller.

[0012] As a further technical solution of the present invention, the number of the stirring rods is several groups and distributed in a ring array, the stirring rods on a vertical section are a whole, and the stirring rods composed of several wholes are distributed at intervals along the length direction of the active roller, and the toggle rods are perpendicular to each other.

[0013] As a further technical solution of the present invention, the whole formed by the spaced stirring rods and the whole formed by the rectangular plate are staggered, the diameter of the supporting hole is smaller than the maximum diameter of the metal sphere, and the minimum and maximum distances between the toggle rod and the inner wall of the grinding cylinder are between ¼ and ⅓ of the diameter of the metal sphere.

[0014] As a further technical solution of the present invention, the active roller is a hollow columnar structure, the active roller rotates inside the casing, the connecting pipe is connected to the interior of the casing, the connecting pipe and the interior of the connecting pipe are connected through the connecting hole, the fixed bracket extends outward from the internal opening of the grinding cylinder, and the other end is fixedly connected to the base bracket by screws, and the fixed bracket and the active roller are rotatably connected by a bearing.

[0015] As a further technical solution of the present invention, the fan blows air from top to bottom, the air inlet pipe is an arc-shaped strip structure, and the air inlet pipe is connected to the inside of the connecting pipe, and the number of the connecting holes is several groups and distributed in a ring array.

[0016] As a further technical solution of the present invention, the interior of the sleeve is always connected to some connecting holes, the number of the air outlet holes is several groups and distributed in a ring array, and the openings of the air outlet holes are oriented to different positions by rotating the active roller.

[0017] As a further technical solution of the present invention, the inner surface of the active roller is a smooth structure, and the side of the isolation plate that is in contact with the inner surface of the active roller is a smooth surface. The isolation plate's own gravity ensures that the isolation plate is always located at the bottom of the active roller during the rotation of the active roller, and the isolation plate ensures that the air outlet holes in the lower half of the outer surface of the active roller are not connected to the interior of the active roller.

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

[0019] In the present invention, the metal spheres inside the grinding cylinder can be moved through the action of the toggle structure, which can effectively enhance the friction between the spheres on the basis of the rotation of the grinding cylinder itself, thereby effectively promoting the grinding effect of the equipment, and can form offset reverse stirring, which can make the mutual friction and collision effect between the spheres better. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Figure 1 It is a structural schematic diagram of the device of the present invention;

[0022] Figure 2 It is a schematic diagram of a partial structure cut away of the present invention;

[0023] Figure 3 For the present invention Figure 2 A partial enlarged view of the toggle structure;

[0024] Figure 4 For the present invention Figure 2 A partial enlarged view of the circulating air structure;

[0025] Figure 5 It is a schematic diagram of a partial structure of the circulating air structure of the present invention;

[0026] Figure 6 A schematic diagram of a partial structure of the present invention cut away from another perspective of the circulating air structure;

[0027] Figure 7 For the present invention Figure 5 Schematic diagram of the local structure of the middle casing being disassembled and installed on the active roller.

[0028] In the figure: 1. base bracket; 2. grinding cylinder; 3. feeding cylinder; 4. feeding motor; 5. toggle structure; 51. active roller; 52. rectangular plate; 53. lifting hole; 54. stirring rod; 55. toggle rod; 56. conveying blade; 6. circulating air structure; 61. sleeve; 62. connecting pipe; 63. fixed bracket; 64. outer shell; 65. fan; 66. connecting hole; 67. connecting pipe; 68. air inlet pipe; 69. air inlet hole; 60. connecting hole; 610. isolation plate; 611. air outlet hole; 7. feed frame; 8. driving gear; 9. driven gear; 10. main motor; 11. discharge opening. DETAILED DESCRIPTION

[0029] The following will be combined with the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0030] like Figure 1~Figure 3As shown, this embodiment proposes a solid waste-based cementitious material grinding device for ultra-low carbon concrete, including a base bracket 1 and a grinding cylinder 2 rotatably arranged on the outer surface of the base bracket 1, one end of the base bracket 1 is fixedly connected with a feed cylinder 3 corresponding to the feed port of the grinding cylinder 2, and a toggle structure 5 is arranged inside the feed cylinder 3 and the grinding cylinder 2, so that a discharge opening 11 is opened at one end of the grinding cylinder 2, and a circulating air structure 6 is arranged inside the grinding cylinder 2 near the discharge opening 11, and a plurality of groups of metal spheres for grinding are arranged inside the grinding cylinder 2; one end of the feed cylinder 3 is fixedly connected with a feed motor 4, the upper end of the feed cylinder 3 is fixedly connected with a feed frame 7, the outer surface of the grinding cylinder 2 is fixedly connected with a driven gear 9, the outer surface of the driven gear 9 is meshingly connected with a driving gear 8, and the outer surface of the base bracket 1 is fixedly connected with a main motor 10 corresponding to the base bracket 1.

[0031] The toggle structure 5 includes an active roller 51 rotatably connected to the inside of the feed barrel 3, the active roller 51 extends to the inside of the grinding barrel 2, the outer surface of the active roller 51 is fixedly connected with a conveying blade 56 corresponding to the feed barrel 3, the inside of the grinding barrel 2 is fixedly connected with a rectangular plate 52, the inside of the rectangular plate 52 is provided with a lifting hole 53, the outer surface of the active roller 51 is fixedly connected with a stirring rod 54 corresponding to the grinding barrel 2, and one end of the stirring rod 54 is fixedly connected to a toggle rod 55.

[0032] The feed frame 7 is connected to the interior of the feed barrel 3 and is used for feeding. The conveying blades 56 are used for rotating feeding. The number of rectangular plates 52 is several groups and distributed in a ring array. Several groups of rectangular plates 52 on a vertical section are a whole, and several wholes are distributed at intervals along the length direction of the active roller 51; the number of stirring rods 54 is several groups and distributed in a ring array. The stirring rods 54 on a vertical section are a whole, and several wholes of stirring rods 54 are distributed at intervals along the length direction of the active roller 51, and the toggle rod 55 and the stirring rod 54 are perpendicular to each other.

[0033] The whole formed by the spaced stirring rods 54 and the whole formed by the rectangular plate 52 are staggered, the diameter of the supporting hole 53 is smaller than the maximum diameter of the metal sphere, and the minimum and maximum distances between the toggle rod 55 and the inner wall of the grinding cylinder 2 are between ¼ and ⅓ of the diameter of the metal sphere.

[0034] In this embodiment, the metal spheres inside the grinding cylinder 2 can be moved, which can effectively enhance the friction between the spheres on the basis of the rotation of the grinding cylinder 2 itself, thereby effectively promoting the grinding effect of the equipment, and forming offset reverse stirring, which can make the mutual friction and collision effect between the spheres better.

[0035] During use, the user can pour the raw materials from the upper end of the feed frame 7, start the feed motor 4, drive the active roller 51 to rotate, and drive the conveying blade 56 to rotate through the active roller 51, so as to input the solid waste-based gelling material from the feed cylinder 3 into the inside of the grinding cylinder 2. After the solid waste-based gelling material enters the inside of the grinding cylinder 2, the main motor 10 drives the active gear 8 to rotate, and the active gear 8 drives the driven gear 9 to rotate, and the driven gear 9 drives the grinding cylinder 2 to rotate. Through the rotation of the grinding cylinder 2, the metal balls inside the grinding cylinder 2 can follow the rotation and roll, and the metal balls rub against each other, so as to finely grind the solid waste-based gelling material.

[0036] Under the action of the rotation of the grinding cylinder 2 itself, the rectangular plate 52 will be driven to rotate accordingly, and the rotation of the rectangular plate 52 can drive the ball to rotate accordingly, and at the same time, the hole of the lifting hole 53 can lift the ball, so that the ball is thrown up, so that the impact force between the balls can be strengthened, thereby enhancing the fine grinding effect;

[0037] On the basis of the above-mentioned fine grinding, the stirring rod 54 will drive the toggle rod 55 to rotate. In this state, the conveying blade 56 still continues to feed, and the direction of rotation of the stirring rod 54 together with the toggle rod 55 is opposite to the rotation direction of the rectangular plate 52. The toggle rod 55 can be used to toggle the ball in the reverse direction for fine grinding, thereby further promoting the stirring process and enhancing the grinding effect. At the same time, when there is no need to transport the solid waste-based cementitious material, the feeding motor 4 can be used to drive the active roller 51 to rotate in the reverse direction. At this time, the stirring rod 54 and the rectangular plate 52 rotate in the same direction, which can also promote the stirring effect.

[0038] It should be noted that, in actual application, the conveying direction of the conveying blade 56 can be set in the reverse direction. At this time, the solid waste-based cementitious material can be conveyed while the rotation direction of the stirring rod 54 is the same as the direction of the rectangular plate 52. When necessary, when it is not necessary to convey the raw materials, the active roller 51 can be driven to rotate in the reverse direction by the feeding motor 4, so as to achieve the stirring effect by reversely dislocating the metal ball. Example

[0039] like Figure 4~Figure 7As shown, on the basis of Example 1, it is further proposed that the circulating air structure 6 includes a sleeve 61 movably sleeved on the outer surface of the active roller 51, the upper end of the sleeve 61 is fixedly connected with a connecting pipe 62, a fixing bracket 63 is fixedly connected between the connecting pipe 62 and the base bracket 1, the upper end of the connecting pipe 62 is fixedly connected with an outer shell 64, the interior of the outer shell 64 is movably connected with a fan 65, the outer surface of the active roller 51 is provided with an air outlet 611, the upper end of the outer shell 64 is fixedly connected with a connecting pipe 67, the upper and lower ends of the outer shell 64 are provided with connecting holes 66, the upper end of the connecting pipe 67 is fixedly connected with an air inlet pipe 68, the lower end of the air inlet pipe 68 is provided with an air inlet hole 69, the outer surface of the active roller 51 is provided with a connecting hole 60 corresponding to the sleeve 61, and an isolation plate 610 is movably provided on the inner wall surface of the lower end of the active roller 51.

[0040] The active roller 51 is a hollow columnar structure, which rotates inside the sleeve 61. The connecting pipe 62 is connected to the inside of the sleeve 61, and the connecting pipe 67 is connected to the inside of the connecting pipe 62 through the connecting hole 66. The fixed bracket 63 extends outward from the internal opening of the grinding cylinder 2, and the other end is fixedly connected to the base bracket 1 by screws. The fixed bracket 63 and the active roller 51 are rotatably connected through a bearing; the direction of the fan 65 blowing is from top to bottom, the air inlet pipe 68 is an arc-shaped strip structure, and the air inlet pipe 68 is connected to the inside of the connecting pipe 67, and the number of connecting holes 60 is several groups and distributed in a ring array; the inside of the sleeve 61 is always connected to some of the connecting holes 60, and the number of air outlet holes 611 is several groups and distributed in a ring array, and the opening of the air outlet holes 611 is oriented to different positions by rotating the active roller 51.

[0041] The inner surface of the active roller 51 is a smooth structure, and the side of the isolation plate 610 that is in contact with the inner surface of the active roller 51 is a smooth surface. The isolation plate 610's own gravity ensures that the isolation plate 610 is always located at the bottom of the active roller 51 during the rotation of the active roller 51, and the isolation plate 610 ensures that the air outlet holes 611 in the lower half of the outer surface of the active roller 51 are not connected to the interior of the active roller 51.

[0042] In this embodiment, the fine solid waste-based cementitious material dust floating inside the grinding cylinder 2 can be circulated inside the grinding cylinder 2. At the same time, the solid waste-based cementitious material dust in different areas of the upper half of the grinding cylinder 2 can be blown out through the action of the active roller 51, and the dust can be effectively suppressed from escaping from the opening of the grinding cylinder 2 near the opening.

[0043] During the operation of the toggle structure 5, the fan 65 will run, and the fine solid waste-based cementitious material dust floating in the grinding cylinder 2 will be sucked into the inside of the air inlet pipe 68 through the air inlet hole 69, and then sucked into the inside of the connecting pipe 67 through the air inlet pipe 68. Finally, the dust will be blown into the inside of the connecting pipe 62 from the inside of the outer shell 64, and directly blown into the inside of the active roller 51 through the connecting hole 60, and finally blown out from the air outlet 611. The air inlet pipe 68 is arranged inside the grinding cylinder 2 near the discharge port, so as to prevent the dust from escaping from the discharge port of the grinding cylinder 2. In the process of the air outlet 611 blowing outwards, the isolation plate 610 is always located at the lower part of the inside of the active roller 51. The isolation plate 610 can blow out air only when the air outlet 611 is located on both sides or the upper end of the active roller 51. When the air outlet 611 is located at the lower end of the isolation plate 610, no airflow will be blown out, the solid waste-based cementitious material in the lower half of the grinding cylinder 2 will not be blown, and the solid waste-based cementitious material powder will not fly up. It can effectively suppress the solid waste-based cementitious material ash inside the grinding cylinder 2 from being blown out, and the dust-proof effect is strong.

[0044] In summary, during use, the user can pour the raw materials from the upper end of the feed frame 7, start the feed motor 4, drive the active roller 51 to rotate, and drive the conveying blade 56 to rotate through the active roller 51, so as to input the solid waste-based gelling material from the feed cylinder 3 into the inside of the grinding cylinder 2. After the solid waste-based gelling material enters the inside of the grinding cylinder 2, the main motor 10 drives the active gear 8 to rotate, and the active gear 8 drives the driven gear 9 to rotate, and the driven gear 9 drives the grinding cylinder 2 to rotate. Through the rotation of the grinding cylinder 2, the metal balls inside the grinding cylinder 2 can follow the rotation and roll, and the metal balls rub against each other, so as to finely grind the solid waste-based gelling material.

[0045] Under the action of the rotation of the grinding cylinder 2 itself, the rectangular plate 52 will be driven to rotate accordingly, and the rotation of the rectangular plate 52 can drive the ball to rotate accordingly, and at the same time, the hole of the lifting hole 53 can lift the ball, so that the ball is thrown up, so that the impact force between the balls can be strengthened, thereby enhancing the fine grinding effect;

[0046] On the basis of the above-mentioned fine grinding, the stirring rod 54 will drive the toggle rod 55 to rotate. In this state, the conveying blade 56 still continues to feed, and the direction of rotation of the stirring rod 54 together with the toggle rod 55 is opposite to the rotation direction of the rectangular plate 52. The toggle rod 55 can be used to toggle the ball in the reverse direction for fine grinding, thereby further promoting the stirring process and enhancing the grinding effect. At the same time, when there is no need to transport the solid waste-based cementitious material, the feeding motor 4 can be used to drive the active roller 51 to rotate in the reverse direction. At this time, the stirring rod 54 and the rectangular plate 52 rotate in the same direction, which can also promote the stirring effect.

[0047] It should be noted that, in actual application, the conveying direction of the conveying blade 56 can be set in the reverse direction. At this time, the solid waste-based cementitious material can be conveyed while the rotation direction of the stirring rod 54 is the same as the direction of the rectangular plate 52. When necessary, when it is not necessary to convey the raw materials, the active roller 51 can be driven to rotate in the reverse direction by the feeding motor 4, so as to achieve the stirring effect by reversely dislocating the metal ball.

[0048] During the operation of the toggle structure 5, the fan 65 will operate, and the fine solid waste-based cementitious material dust floating in the grinding cylinder 2 will be sucked into the interior of the air inlet pipe 68 through the air inlet hole 69, and then sucked into the interior of the connecting pipe 67 through the air inlet pipe 68. Finally, the dust will be blown into the interior of the connecting pipe 62 from the interior of the outer shell 64, and directly blown into the interior of the active roller 51 through the connecting hole 60, and finally blown out from the air outlet 611. The air inlet pipe 68 is arranged inside the grinding cylinder 2 near the discharge port, so as to prevent the dust from escaping from the discharge port of the grinding cylinder 2. In the process of blowing outwards through the air outlet 611, the isolation plate 610 is always located at the lower part of the inner part of the active roller 51. The isolation plate 610 can blow out only when the air outlet 611 is located at the two sides or the upper end of the active roller 51. When the air outlet 611 is located at the lower end of the isolation plate 610, no airflow will be blown out, the solid waste-based cementitious material in the lower half of the grinding cylinder 2 will not be blown, and the solid waste-based cementitious material ash will not fly up. It can effectively suppress the cement ash inside the grinding cylinder 2 from being blown out, and the dust-proof effect is strong.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A solid waste-based cementitious material grinding device for ultra-low carbon concrete, comprising a base support (1) and a grinding cylinder (2) rotatably arranged on the outer surface of the base support (1), characterized in that: One end of the base support (1) is fixedly connected to a feed cylinder (3) corresponding to one end of the feed opening of the grinding cylinder (2); a toggle structure (5) is provided inside the feed cylinder (3) and the grinding cylinder (2); a discharge opening (11) is provided at one end of the grinding cylinder (2); a circulating air structure (6) is provided inside the grinding cylinder (2) near the discharge opening (11); and a plurality of groups of metal balls for grinding are provided inside the grinding cylinder (2); The toggle structure (5) comprises an active roller (51) rotatably connected to the inside of the feed cylinder (3), the active roller (51) extending to the inside of the grinding cylinder (2), a conveying blade (56) fixedly connected to the outer surface of the active roller (51) corresponding to the feed cylinder (3), a rectangular plate (52) fixedly connected to the inside of the grinding cylinder (2), a lifting hole (53) provided inside the rectangular plate (52), a stirring rod (54) fixedly connected to the outer surface of the active roller (51) corresponding to the grinding cylinder (2), and a toggle rod (55) fixedly connected to one end of the stirring rod (54); One end of the feed cylinder (3) is fixedly connected to a feed motor (4), the upper end of the feed cylinder (3) is fixedly connected to a feed frame (7), the outer surface of the grinding cylinder (2) is fixedly connected to a driven gear (9), the outer surface of the driven gear (9) is meshingly connected to a driving gear (8), and the outer surface of the base bracket (1) is fixedly connected to a main motor (10) at a position corresponding to the base bracket (1); The circulating air structure (6) comprises a sleeve (61) movably sleeved on the outer surface of the active roller (51); a connecting pipe (62) is fixedly connected to the upper end of the sleeve (61); a fixing bracket (63) is fixedly connected between the connecting pipe (62) and the base bracket (1); an outer shell (64) is fixedly connected to the upper end of the connecting pipe (62); a fan (65) is movably connected inside the outer shell (64); and an air outlet hole (61) is provided on the outer surface of the active roller (51). 1), a connecting tube (67) is fixedly connected to the upper end of the outer shell (64), connecting holes (66) are provided at the upper and lower ends of the outer shell (64), an air inlet pipe (68) is fixedly connected to the upper end of the connecting tube (67), an air inlet hole (69) is provided at the lower end of the air inlet pipe (68), a connecting hole (60) is provided on the outer surface of the active roller (51) corresponding to the sleeve (61), and an isolation plate (610) is movably provided on the inner wall surface of the lower end of the active roller (51).

2. The solid waste-based cementitious material grinding device for ultra-low carbon concrete according to claim 1 is characterized in that: The feed frame (7) is connected to the inside of the feed barrel (3) and is used for feeding. The conveying blades (56) are used for rotating feeding. The rectangular plates (52) are provided in a plurality of groups and are distributed in a ring array. The plurality of groups of rectangular plates (52) on a vertical cross section are a whole. The plurality of wholes are distributed at intervals along the length direction of the active roller (51).

3. The solid waste-based cementitious material grinding device for ultra-low carbon concrete according to claim 2 is characterized in that: The stirring rods (54) are provided in a plurality of groups and are distributed in a ring array; the stirring rods (54) on a vertical cross section are a whole; the stirring rods (54) formed as a whole are distributed at intervals along the length direction of the active roller (51); and the toggle rods (55) and the stirring rods (54) are perpendicular to each other.

4. The solid waste-based cementitious material grinding device for ultra-low carbon concrete according to claim 3 is characterized in that: The entirety formed by the spaced stirring rods (54) and the entirety formed by the rectangular plate (52) are staggered, the diameter of the support hole (53) is smaller than the maximum diameter of the metal sphere, and the minimum and maximum spacings between the toggle rod (55) and the inner wall of the grinding cylinder (2) are between ¼ and ⅓ of the diameter of the metal sphere.

5. The solid waste-based cementitious material grinding device for ultra-low carbon concrete according to claim 1 is characterized in that: The active roller (51) is a hollow columnar structure. The active roller (51) rotates inside the sleeve (61). The connecting pipe (62) is connected to the inside of the sleeve (61). The connecting pipe (67) is connected to the inside of the connecting pipe (62) through the connecting hole (66). The fixed bracket (63) extends outward from the internal opening of the grinding cylinder (2). The other end is fixedly connected to the base bracket (1) by screws. The fixed bracket (63) and the active roller (51) are rotatably connected by a bearing.

6. The solid waste-based cementitious material grinding device for ultra-low carbon concrete according to claim 5 is characterized in that: The fan (65) blows air from top to bottom, the air inlet pipe (68) is an arc-shaped strip structure, and the air inlet pipe (68) is connected to the inside of the connecting pipe (67), and the number of the connecting holes (60) is a plurality of groups and is distributed in a ring array.

7. The solid waste-based cementitious material grinding device for ultra-low carbon concrete according to claim 6 is characterized in that: The interior of the sleeve (61) is always connected to a part of the connection holes (60); the number of the air outlet holes (611) is a plurality of groups and is distributed in a ring array; the openings of the air outlet holes (611) are oriented to different positions by rotating the active roller (51).

8. The solid waste-based cementitious material grinding device for ultra-low carbon concrete according to claim 6, characterized in that: The inner surface of the active roller (51) is a smooth structure, and the side of the isolation plate (610) that contacts the inner surface of the active roller (51) is a smooth surface. The isolation plate (610) is gravity-forced so that the isolation plate (610) is always located at the bottom of the active roller (51) during the rotation of the active roller (51). The isolation plate (610) prevents the air outlet holes (611) on the lower half of the outer surface of the active roller (51) from being connected to the interior of the active roller (51).

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