Cement batching production line

Abstract

The invention discloses a cement batching production line, and relates to the technical field of cement production. The device comprises a spiral conveyor and a stirring barrel, one end of the stirring barrel is rotationally connected with the outer wall of the spiral conveyor, the end, away from the spiral conveyor, of the stirring barrel is connected with an end cover, and the outer wall of the stirring barrel is rotationally connected with a discharging barrel; a plurality of stirring rods are connected to the inner wall of the stirring barrel, a plurality of spiral pieces are arranged on the inner wall of the end, away from the spiral conveyor, of the stirring barrel in a circumferential array mode, a plurality of discharging ports are formed in the side wall in a circumferential array mode, the stirring barrel rotates, materials are stirred and mixed through the stirring rods, and the materials are guided towards the discharging ports through the spiral pieces. And the materials are discharged from the discharge port and the discharge pipe of the discharge cylinder. The stirring barrel is communicated with the spiral conveyor, and in the rotating stirring process of the stirring barrel, mixed materials are discharged from the discharging barrel at the other end of the stirring barrel, so that the problem that the overall production efficiency is low due to the fact that the waiting time cannot be fully utilized in the existing stirring process is solved.

Description

Technical Field

[0001] The present invention belongs to the technical field of cement production, and particularly relates to a cement batching production line. Background Art

[0002] Cement is a commonly used building material, mainly used in construction projects such as concrete and mortar. It is a powdery substance, usually made from raw materials such as limestone, clay, and iron ore through processes such as grinding, mixing, and calcination. A cement raw material batching device is required for a cement production line.

[0003] For example, Chinese Utility Model CN220579153U discloses an automatic batching device for a cement production line. Above the inner wall of the configuration frame, multiple feeding devices are provided, and a conveyor belt is used to supply materials to the multiple feeding devices. At the same time, the feeding devices control the quantity of different materials put into the configuration frame, facilitating the proportionate feeding of materials, and the materials put into the configuration frame are agitated by a second spiral blade to improve the material mixing efficiency.

[0004] However, in the prior art, after various materials are proportionally fed and then agitated, the mixed materials are discharged after agitation. During the agitation process, the conveyance of materials stops, and the waiting time during agitation needs to be waited for. After that, various materials are added again, resulting in the underutilization of the waiting time during agitation, thus leading to a relatively low overall production efficiency. Summary of the Invention

[0005] The purpose of the present invention is to provide a cement batching production line. By connecting a mixing drum with a screw conveyor, and during the rotation of the mixing drum for agitation, the mixed materials are discharged from the discharge cylinder at the other end of the mixing drum, solving the problem that the waiting time during the existing agitation process cannot be fully utilized, resulting in a low overall production efficiency.

[0006] To solve the above technical problems, the present invention is realized through the following technical solutions:

[0007] The present invention relates to a cement batching production line, which includes a screw conveyor and a mixing drum. The feeding end of the screw conveyor is connected with a feeding hopper. Both the screw conveyor and the mixing drum are horizontally arranged. One end of the mixing drum is rotatably connected to the outer wall of the screw conveyor, and a end cover is fixedly connected to the end of the mixing drum far away from the screw conveyor. An outlet cylinder is rotatably connected to the outer wall of the mixing drum; a discharge pipe is connected to the lower side of the outlet cylinder; several stirring rods are connected to the inner wall of the mixing drum. A plurality of spiral blades are arranged in a circumferential array on the inner wall of the mixing drum at the end far away from the screw conveyor, and a plurality of discharge ports are circumferentially arrayed on the side wall. The discharge ports are all located inside the outlet cylinder; the mixing drum is drivingly connected with a driving device for driving the mixing drum to rotate, stirring and mixing the materials through the stirring rods, guiding the materials towards the discharge ports through the spiral blades, and discharging them through the discharge ports and the discharge pipe of the outlet cylinder.

[0008] As a preferred technical solution of the present invention, a stirring shaft is rotatably connected to the end cover, and a stirring paddle is fixedly connected to the stirring shaft and is arranged staggeredly with the stirring rods; the stirring shaft is drivingly connected with a driving device for driving the stirring shaft to rotate and stirring and mixing the materials by using the stirring paddle.

[0009] As a preferred technical solution of the present invention, the rotation direction of the stirring shaft is opposite to that of the mixing drum.

[0010] As a preferred technical solution of the present invention, an internal gear ring is fixedly connected to the side surface of the end cover, and a driving wheel located inside the internal gear ring is fixedly connected to the stirring shaft; end walls are provided at the ends of the outlet cylinder far away from the mixing drum, and several transmission wheels that are all meshed with the internal gear ring and the driving wheel are rotatably connected to the end walls for synchronously driving the mixing drum and the stirring shaft to rotate by the same driving device.

[0011] As a preferred technical solution of the present invention, the stirring shaft is drivingly connected to the rotating shaft of the screw conveyor, and the mixing drum, the stirring shaft and the screw conveyor are synchronously driven by the same driving device.

[0012] As a preferred technical solution of the present invention, the stirring shaft is rotatably connected to the end wall.

[0013] As a preferred technical solution of the present invention, a sealing ring plate is fixedly connected to the inner wall of the outlet cylinder, and the end cover and the sealing ring plate are rotationally sealed.

[0014] As a preferred technical solution of the present invention, the stirring rods are in a plate-like structure, and the cross section is in an arc shape or a U-shaped structure for turning up the materials by the stirring rods.

[0015] As a preferred technical solution of the present invention, the stirring rods are evenly arranged along the inner wall of the mixing drum.

[0016] As a preferred technical solution of the present invention, the stirring paddle has the same structure as the stirring rod.

[0017] The present invention has the following beneficial effects:

[0018] In the present invention, the screw conveyor and the mixing cylinder are horizontally arranged. One end of the mixing cylinder is rotatably connected to the outer wall of the screw conveyor, and the outer wall of the other end of the mixing cylinder is rotatably connected to the discharge cylinder. The screw conveyor continuously inputs various materials into the mixing cylinder. By driving the mixing cylinder to rotate and using the stirring rod to stir and mix the materials, and guiding the materials towards the discharge port through the spiral blades, and discharging them through the discharge port and the discharge pipe of the discharge cylinder, so as to complete the stirring and mixing of the materials during the continuous conveying process, realize continuous conveying and stirring, avoid the waiting process during the stirring process, and thus effectively improve the overall production efficiency of cement batching.

[0019] Of course, it is not necessary for any product implementing the present invention to achieve all the above-mentioned advantages simultaneously. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0021] Figure 1 is a schematic structural diagram of a cement batching production line of the present invention;

[0022] Figure 2 is Figure 1 the front view of;

[0023] Figure 3 is Figure 2 the left view of;

[0024] Figure 4 is Figure 3 the cross-sectional view at A-A in;

[0025] Figure 5 is an exploded view of the end wall, end cover, mixing cylinder and discharge cylinder;

[0026] Figure 6 is an exploded view of the mixing cylinder, discharge cylinder, mixing shaft and screw conveyor;

[0027] Figure 7 is a half-sectional view of the mixing cylinder;

[0028] Figure 8 is an exploded view of the structure of the discharge cylinder;

[0029] Figure 9 Internal view of the discharge cylinder

[0030] In the attached drawings, the list of components represented by each reference numeral is as follows:

[0031] 1 - Screw conveyor, 2 - Mixing drum, 3 - Discharge cylinder, 4 - Mixing shaft, 101 - Feed hopper, 201 - End cover, 202 - Mixing rod, 203 - Helical blade, 204 - Discharge port, 205 - Internal gear ring, 301 - Discharge pipe, 302 - End wall, 303 - Transmission, 304 - Sealing ring plate, 401 - Mixing paddle, 402 - Driving wheel Specific embodiments

[0032] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with 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. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention

[0033] In the description of the present invention, it should be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "periphery", etc. indicating orientation or positional relationship are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the components or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be construed as a limitation of the present invention

[0034] Embodiment 1

[0035] Please refer to Figures 1 to 3 As shown, the present invention is a cement batching production line, including a screw conveyor 1 and a mixing drum 2. The feeding end of the screw conveyor 1 is connected with a feed hopper 101, and various batching materials are added to the feed hopper 10 in proportion through the conveyor and conveyed through the screw conveyor 1

[0036] Both the screw conveyor 1 and the mixing drum 2 are horizontally arranged. One end of the mixing drum 2 is rotatably connected to the outer wall of the screw conveyor 1 through a turntable bearing, and an end cover 201 is fixedly connected to the end of the mixing drum 2 away from the screw conveyor 1. The mixing drum 2 and the end cover 201 are fixedly connected through a flange structure and bolts, and the outer wall of the mixing drum 2 is rotatably connected with a discharge cylinder 3 through a turntable bearing. The screw conveyor 1 and the discharge cylinder 3 are supported and fixed through brackets, etc

[0037] As shown in Figure 4 and 5And 7, the inner diameter of the mixing drum 2 is greater than the outer diameter of the screw conveyor 1, the inner diameter of the discharge tube 3 is greater than the outer diameter of the mixing drum 2, and a discharge pipe 301 is connected to the lower side of the discharge tube 3. A plurality of stirring rods 202 are connected to the inner wall of the mixing drum 2, and the stirring rods 202 are uniformly arranged along the inner wall of the mixing drum 2.

[0038] A plurality of spiral fins 203 are arranged in a circumferential array on the inner wall of the mixing drum 2 at the end far from the screw conveyor 1, and a plurality of discharge ports 204 are circumferentially arrayed on the side wall. The discharge ports 204 are located at the end of the spiral fins 203 far from the screw conveyor 1, and all the discharge ports 204 are located inside the discharge tube 3.

[0039] The mixing drum 2 is drivingly connected to a driving device for driving the mixing drum 2 to rotate. The screw conveyor 1 continuously inputs various ingredients into the mixing drum 2. During the rotation of the mixing drum 2, the materials are stirred and mixed by the stirring rods 202.

[0040] Among them, the stirring rod 202 has a plate-like structure, and the cross-section is in an arc shape or a U-shaped structure, so that the materials are contained in the stirring rod 202. During the rotation of the mixing drum 2, the materials are turned up by the stirring rod 202. When the stirring rod 202 rotates to the upper end and tilts downward, the materials slide down naturally, so as to achieve the effect of turning the materials and realize the stirring and mixing of the materials.

[0041] As the various ingredients in the mixing drum 2 increase and the internal materials gradually increase, during the rotation of the mixing drum 2, the stirred materials are forced to gradually move towards the end far from the screw conveyor 1. When moving to the position of the spiral fins 203, the inclined spiral fins 203 guide the materials towards the position of the discharge ports 204, and the materials fall into the discharge tube 3 through the discharge ports 204 and are finally discharged through the discharge pipe 301. Thus, the stirring and mixing of the materials are completed during the continuous conveying process, continuous conveying and stirring are realized, and the stirred materials are automatically discharged, avoiding the waiting process during the stirring process, thereby effectively improving the overall production efficiency of the cement ingredients.

[0042] Embodiment 2

[0043] On the basis of Embodiment 1, as Figures 4 to 6 shown, the end cover 201 is rotatably connected to a stirring shaft 4, and the stirring shaft 4 is fixedly connected to stirring paddles 401 arranged in a staggered manner with the stirring rods 202. The stirring shaft 4 is drivingly connected to a driving device for driving the stirring shaft 4 to rotate and using the stirring paddles 401 to stir and mix the materials.

[0044] Among them, the stirring paddles 401 have the same structure as the stirring rods 202, and the rotation direction of the stirring shaft 4 is opposite to the rotation direction of the mixing drum 2. Adding the stirring paddles 401 can further improve the stirring and mixing efficiency.

[0045] AsFigures 7 to 9 As shown, further, the stirring shaft 4 is rotatably connected to the end wall 302, which is beneficial to improve the stability of the stirring shaft 4. The side of the end cover 201 is fixedly connected with an inner gear ring 205, and the stirring shaft 4 is fixedly connected with a driving wheel 402 located inside the inner gear ring 205. The end of the discharge barrel 3 away from the mixing barrel 2 has an end wall 302, and the discharge barrel 3 and the end wall 302 are fixed by a flange structure and bolt connection.

[0046] In addition, the end wall 302 is rotatably connected to four transmission wheels 303 that are meshed with the inner gear ring 205 and the driving wheel 402 to form a planetary gear transmission structure, so that the mixing drum 2 and the mixing shaft 4 can be synchronously driven to rotate through the same driving device, and the rotation directions of the two are opposite.

[0047] If the motor is connected to the stirring shaft 4 through transmission, the motor can be fixed on the end wall 302, or installed and fixed through a separate mounting frame, that is, the stirring drum 2 and the stirring shaft 4 can be driven to rotate synchronously by one motor.

[0048] As another preferred embodiment, the stirring shaft 4 is transmission-connected with the rotating shaft of the screw conveyor 1, so that the stirring drum 2, the stirring shaft 4 and the screw conveyor 1 are synchronously driven by the same driving device, such as a motor is transmission-connected with the stirring shaft 4, or directly transmission-connected with the rotating shaft of the screw conveyor 1, so that one motor can drive the stirring drum 2, the stirring shaft 4 and the screw conveyor 1 to rotate synchronously, effectively improving the overall compactness of the equipment and reducing the number of components.

[0049] At the same time, a sealing ring plate 304 is fixedly connected to the inner wall of the discharge barrel 3, and a rotating seal is formed between the end cover 201 and the sealing ring plate 304, so that the inner gear ring 205, the drive wheel 402 and the transmission wheel 303 are isolated from the material, so that they are located in a relatively closed environment between the end wall 302 and the end cover 201, thereby avoiding wear between the transmission components caused by the material and improving the overall service life.

[0050] Furthermore, during maintenance, it is only necessary to dismantle the end wall 302 or to open an inspection window on the end wall 302 so as to inspect and lubricate the inner gear ring 205, the driving wheel 402 and the transmission wheel 303, thereby greatly improving the overall practicality and ease of use.

[0051] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0052] The preferred embodiments of the present invention disclosed above are only used to help illustrate the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific embodiments described. Obviously, many modifications and variations can be made according to the content of this specification. These embodiments are selected and specifically described in this specification to better explain the principles and practical applications of the present invention, so that those skilled in the art can well understand and utilize the present invention. The present invention is only limited by the claims and their full scope and equivalents.

Claims

1. A cement batching production line, comprising a screw conveyor (1) and a mixing drum (2), wherein the feeding end of the screw conveyor (1) is connected to a feeding hopper (101), characterized in that: The screw conveyor (1) and the mixing drum (2) are both arranged horizontally, one end of the mixing drum (2) is rotatably connected to the outer wall of the screw conveyor (1), and the end of the mixing drum (2) away from the screw conveyor (1) is fixedly connected to an end cover (201), and the outer wall of the mixing drum (2) is rotatably connected to a discharge drum (3); the lower side of the discharge drum (3) is connected to a discharge pipe (301); The inner wall of the mixing drum (2) is connected to a plurality of mixing rods (202); a plurality of spiral blades (203) are arranged in a circumferential array on the inner wall of the mixing drum (2) at one end away from the screw conveyor (1); and a plurality of discharge ports (204) are arranged in a circumferential array on the side wall, and the discharge ports (204) are all located inside the discharge drum (3); The mixing drum (2) is connected to a driving device for driving the mixing drum (2) to rotate, so as to achieve mixing and stirring of the materials through the mixing rod (202), and to guide the materials toward the discharge port (204) through the spiral blade (203), and to be discharged through the discharge port (204) and the discharge pipe (301) of the discharge drum (3).

2. A cement batching production line according to claim 1, characterized in that: The end cover (201) is rotatably connected to a stirring shaft (4), and the stirring shaft (4) is fixedly connected to stirring paddles (401) arranged alternately with the stirring rod (202); the stirring shaft (4) is transmission-connected to a driving device for driving the stirring shaft (4) to rotate, and utilizing the stirring paddles (401) to stir and mix the materials.

3. A cement batching production line according to claim 2, characterized in that: The rotation direction of the stirring shaft (4) is opposite to the rotation direction of the stirring drum (2).

4. A cement batching production line according to claim 2 or 3, characterized in that: The side surface of the end cover (201) is fixedly connected to an inner gear ring (205), and the stirring shaft (4) is fixedly connected to a driving wheel (402) located inside the inner gear ring (205); The end of the discharge barrel (3) away from the mixing barrel (2) has an end wall (302), and the end wall (302) is rotatably connected to a plurality of transmission wheels (303) that are meshed with the inner gear ring (205) and the driving wheel (402), so as to synchronously drive the mixing barrel (2) and the mixing shaft (4) to rotate through the same driving device.

5. A cement batching production line according to claim 4, characterized in that: The stirring shaft (4) is transmission-connected to the rotating shaft of the screw conveyor (1), and the stirring drum (2), the stirring shaft (4) and the screw conveyor (1) are synchronously driven by the same driving device.

6. A cement batching production line according to claim 5, characterized in that: The stirring shaft (4) is rotatably connected to the end wall (302).

7. A cement batching production line according to claim 4, characterized in that: A sealing ring plate (304) is fixedly connected to the inner wall of the discharge barrel (3), and a rotation seal is formed between the end cover (201) and the sealing ring plate (304).

8. A cement batching production line according to claim 2, characterized in that: The stirring rod (202) is a plate-shaped structure, and its cross section is an arc-shaped or U-shaped structure, and is used to stir and lift the material through the stirring rod (202).

9. A cement batching production line according to claim 8, characterized in that: The stirring rods (202) are evenly distributed along the inner wall of the stirring drum (2).

10. A cement batching production line according to claim 8 or 9, characterized in that: The stirring paddle (401) and the stirring rod (202) have the same structure.

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