Cement clinker production stirring equipment

Abstract

The utility model relates to the technical field of cement production, in particular to cement clinker production stirring equipment, and aims to solve the problems that a cooling medium is only introduced into a stirring shaft and the cooling efficiency is low when a stirring device in the prior art is used for cooling. The cooling channel is formed by spirally arranging a plurality of spiral pipes, gaps are formed between the spiral pipes, the two ends of the cooling channel are communicated with different independent cavities in the stirring shaft respectively, the different cavities in the stirring shaft are communicated with the water inlet end and the water drainage end of the cooling system respectively, and a feeding port is formed in the upper portion of the conveying starting end of the horizontal stirring barrel. During stirring, the cooling system introduces a cooling medium into the cavity in the stirring shaft, the cooling medium is discharged from the other cavity of the stirring shaft through the cooling channel, and in the flowing process of the cooling medium, the stirring shaft drives the spirally-arranged cooling channel to keep rotating, so that the cooling medium is uniformly stirred. And stirring and fully cooling the cement clinker.

Description

Technical Field

[0001] This utility model relates to the field of cement production technology, specifically to a cement clinker production mixing equipment. Background Technology

[0002] With the rapid development of the construction industry, complex projects such as high-rise buildings, long-span bridges, and underground engineering are placing increasingly stringent demands on cement quality. Cement must not only meet basic compressive and flexural strength requirements, but also increasingly prioritize durability, impermeability, and erosion resistance. Poor mixing results in an unreasonable particle size distribution in cement; coarse particles hydrate slowly, hindering early strength development, while excessive fine particles increase water demand, easily leading to concrete cracking. Precise and efficient mixing has become essential for obtaining ideal particle size distribution and improving cement quality, driving mixing technology towards refinement and scientific advancement.

[0003] Common types include paddle mixers, spiral mixers, and anchor mixers, or combinations of various types. Paddle mixers use rotating blades to stir materials laterally, dispersing them; spiral mixers push materials up and down, creating a three-dimensional circulating flow; anchor mixers are close to the tank wall, scraping off materials adhering to the tank wall and preventing scale buildup.

[0004] During the mixing process, cement clinker generates heat due to friction and other factors. If this heat cannot be dissipated in time, the material temperature may become too high, affecting the performance of the cement. Therefore, effective cooling measures are needed, such as installing cooling jackets on the mixing equipment and introducing cooling media, to control the material temperature within a suitable range. In existing mixing devices, the cooling media is only introduced into the mixing shaft during cooling, resulting in low cooling efficiency. Utility Model Content

[0005] In order to solve the technical problem that the cooling medium in the existing mixing device is only introduced into the mixing shaft during cooling, resulting in low cooling efficiency, this utility model provides a cement clinker production mixing device.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a cement clinker production mixing device, comprising: a horizontal mixing drum connected to a frame, a mixing shaft rotatably connected to both ends of the horizontal mixing drum, the mixing shaft being connected to a power source, a cooling channel spirally wound around the outside of the mixing shaft, the cooling channel being formed by multiple spiral tubes arranged spirally, with gaps between the spiral tubes, the two ends of the cooling channel being connected to different independent cavities inside the mixing shaft, the different cavities inside the mixing shaft being connected to the water inlet and water outlet of the cooling system, a feed inlet being provided at the upper part of the conveying start end of the horizontal mixing drum, and a discharge outlet being provided at the lower part of the conveying end end of the horizontal mixing drum.

[0007] Preferably, the cooling system includes an inlet pipe and an inlet sleeve. The inlet pipe is connected to the side wall of the horizontal stirring drum and is connected to a coolant pump. The inlet pipe is also connected to the inlet sleeve. An inlet cavity is provided in the middle of the stirring shaft. The inlet cavity is connected to the outside through an inlet hole. The inlet sleeve is rotatably connected to the stirring shaft at the inlet hole. The inlet cavity is connected to one end of two different cooling channels through a connector. The two cooling channels have the same spiral direction. The other end of the cooling channels is connected to a drain cavity located at both ends of the stirring shaft.

[0008] Preferably, one end of the stirring shaft is connected to a gear, which meshes with a gear at the end of the power output shaft.

[0009] Preferably, the gap width between adjacent spiral tubes in the cooling channel is greater than the particle size of the clinker.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] During mixing, the cooling system introduces cooling medium into the cavity inside the mixing shaft. The cooling medium is discharged through the cooling channel through another cavity of the mixing shaft. During the flow of the cooling medium, the mixing shaft drives the spiral-shaped cooling channel to keep rotating, mixing and fully cooling the cement clinker. This solves the technical problem of low cooling efficiency caused by the cooling medium only being introduced into the mixing shaft.

[0012] The cooling medium is introduced through the liquid inlet cavity in the middle of the stirring shaft and guided to the liquid outlet cavities on both sides by two different cooling channels, which shortens the cooling medium's travel distance and results in a lower cooling medium temperature and better cooling effect. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0014] Figure 2 This is a schematic cross-sectional view of the structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 2 .

[0016] In the diagram: 1. Horizontal stirring drum; 2. Frame; 3. Stirring shaft; 4. Cooling channel; 5. Feed inlet; 6. Discharge outlet; 7. Liquid inlet pipe; 8. Liquid inlet sleeve; 9. Liquid inlet hole; 10. Liquid inlet cavity; 11. Connector; 12. Discharge cavity; 13. Gear. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] The rotary connection described in this device refers to the axial fixation of the bearing by mounting the bearing on the shaft, with a spring retaining ring groove provided on the shaft or shaft hole, and the rotation achieved by locking the elastic retaining ring in the retaining ring groove; the hinge connection refers to the connection method that allows movement through connecting parts such as hinges, pins, and short shafts.

[0019] The present invention will now be described in detail with reference to the accompanying drawings. Example

[0020] The following is in conjunction with the appendix Figure 1-3 This embodiment describes a cement clinker production mixing device, comprising: a horizontal mixing drum 1 connected to a frame 2; a mixing shaft 3 rotatably connected to both ends of the horizontal mixing drum 1; the mixing shaft 3 being connected to a power source; a cooling channel 4 spirally wound around the outside of the mixing shaft 3; the cooling channel 4 being formed by multiple spiral tubes arranged in a spiral pattern with gaps between the spiral tubes; both ends of the cooling channel 4 being connected to different independent cavities within the mixing shaft 3; the different cavities within the mixing shaft 3 being connected to the water inlet and water outlet of the cooling system; a feed inlet 5 being provided at the upper part of the conveying start end of the horizontal mixing drum 1; and a discharge outlet 6 being provided at the lower part of the conveying end end of the horizontal mixing drum 1.

[0021] During mixing, the cooling system introduces cooling medium into the independent cavity inside the mixing shaft 3. The cooling medium is discharged through another independent cavity of the mixing shaft 3 via the cooling channel 4. During the flow of the cooling medium, the mixing shaft 3 drives the cooling channel 4, which is formed by multiple spiral tubes, to rotate. The cooling channel 4 always maintains a low temperature and rotates spirally to transport and lift the clinker. The lifted clinker flows in the gaps between the multiple spiral tubes, completing the mixing and fully cooling the cement clinker. This solves the technical problem of low cooling efficiency caused by the cooling medium only being introduced into the mixing shaft.

[0022] The cooling system includes an inlet pipe 7 and an inlet sleeve 8. The inlet pipe 7 is connected to the side wall of the horizontal stirring drum 1 and is connected to the coolant pump. The inlet pipe 7 is connected to the inlet sleeve 8. The stirring shaft 3 has an inlet cavity 10 in the middle. The inlet cavity 10 is connected to the outside through an inlet hole 9. The inlet sleeve 8 is rotatably connected to the stirring shaft 3 at the inlet hole 9. The inlet cavity 10 is connected to one end of two different cooling channels 4 through a connector 11. The two cooling channels 4 have the same spiral direction. The other end of the cooling channel 4 is connected to the drain cavity 12. The drain cavity 12 is located at both ends of the stirring shaft 3.

[0023] The coolant pump injects the coolant through the inlet pipe 7. The inlet pipe 7, located in the middle of the stirring shaft 3, injects the coolant through the inlet hole 9 into the inlet cavity 10. The coolant flows from the inlet cavity 10 to different cooling channels 4 on both sides, and is then guided by the two different cooling channels 4 to the drain cavities 12 on both sides for drainage. This shortens the coolant travel distance, resulting in a lower coolant temperature and better cooling effect. The spiral direction of the two sets of cooling channels 4 is consistent, so it will not affect the conveying of clinker.

[0024] One end of the stirring shaft 3 is connected to a gear 13, which meshes with a gear at the end of the power output shaft.

[0025] The power source is located on the side and meshes with the output gear via gear 13, which will not affect the drainage of the drainage cavity 12.

[0026] The gap width between adjacent spiral tubes in cooling channel 4 is greater than the particle size of the clinker.

[0027] To prevent the gap between adjacent spiral tubes from becoming blocked.

[0028] In the description of this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0029] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0030] 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 cement clinker production mixing apparatus, characterized by: The utility model relates to a horizontal stirring barrel cooling system, including: Horizontal stirring barrel (1) is connected in frame (2), and both ends of horizontal stirring barrel (1) are rotatably connected with stirring shaft (3), and stirring shaft (3) is connected with power, and the outside spiral coiling of stirring shaft (3) is connected with cooling channel (4), and cooling channel (4) is formed by the spiral arrangement of multiple spiral tubes, and gap is arranged between spiral tubes, and both ends of cooling channel (4) are connected with different independent cavities in stirring shaft (3) respectively, and different cavities in stirring shaft (3) are connected with the water inlet end and the drainage end of cooling system respectively, and the upper part of the conveying starting end of horizontal stirring barrel (1) is provided with feeding port (5), and the lower part of the conveying terminal end of horizontal stirring barrel (1) is provided with discharge port (6).

2. A cement clinker production mixing apparatus according to claim 1, characterized in that: The cooling system includes liquid inlet pipe (7), liquid inlet sleeve (8), liquid inlet pipe (7) is connected on the side wall of horizontal stirring barrel (1), liquid inlet pipe (7) is connected with cooling liquid pump, liquid inlet pipe (7) is communicated with liquid inlet sleeve (8), middle part of stirring shaft (3) is equipped with liquid inlet cavity (10), liquid inlet cavity (10) is communicated with outside through liquid inlet hole (9), liquid inlet sleeve (8) is rotatably connected on stirring shaft (3) at liquid inlet hole (9), liquid inlet cavity (10) is communicated with one end of two different cooling channels (4) through joint (11), the spiral direction of two cooling channels (4) is identical, the other end of cooling channel (4) is communicated with drainage cavity (12), and drainage cavity (12) is located at the two ends of stirring shaft (3).

3. A cement clinker production mixing apparatus according to claim 1, characterized in that: One end of stirring shaft (3) is connected with gear (13), and gear (13) is engaged with the gear of power output shaft end.

4. A cement clinker production mixing apparatus according to claim 1, characterized in that: The gap width of adjacent spiral tubes in cooling channel (4) is greater than the particle size of clinker.

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