Grading grinding device for cement production

Abstract

The utility model discloses a grading grinding device for cement production, and relates to the technical field of cement production. Comprising a grinding box, the interior of the grinding box is sequentially provided with an inner grinding cavity, an outer grinding cavity and a discharging cavity in a separated mode from inside to outside with the top as the center, the top of the grinding box is provided with a feeding notch communicated with the inner grinding cavity, the bottom of the inner grinding cavity is communicated with the outer grinding cavity, and the bottom of the outer grinding cavity is communicated with the discharging cavity. The bottom of the outer grinding cavity communicates with the discharging cavity, and the discharging cavity is provided with a discharging opening communicating with the exterior of the grinding box. An inner grinding mechanism is arranged in the inner grinding cavity; the outer grinding cavity is provided with an outer grinding mechanism; and the discharging cavity is provided with a discharging mechanism. The treatment efficiency of cement particles can be effectively improved, and graded grinding treatment can be achieved.

Description

Technical Field

[0001] This utility model relates to the field of cement production technology, and in particular to a grading and grinding device for cement production. Background Technology

[0002] Cement grinding is the final and most energy-intensive step in cement manufacturing. Its main function is to grind cement clinker (as well as retarders, performance modifiers, etc.) to a suitable particle size (expressed as fineness, specific surface area, etc.), forming a certain particle size distribution, increasing its hydration surface area, accelerating the hydration rate, and meeting the requirements for cement paste setting and hardening. After cement grinding, it needs to be screened to select suitable particles.

[0003] Existing grading and grinding devices have low processing efficiency when processing cement particles and cannot perform grading and grinding. Cement particles usually need to be transferred for secondary grinding, which affects cement production efficiency. Therefore, this paper studies and improves the existing structure and its shortcomings, proposing a grading and grinding device for cement production to achieve greater practical value. Utility Model Content

[0004] The main technical problem solved by this utility model is to provide a grading and grinding device for cement production, which can effectively improve the processing efficiency of cement particles and realize grading and grinding.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A grading and grinding device for cement production includes a grinding box. The interior of the grinding box is divided into an inner grinding chamber, an outer grinding chamber, and a discharge chamber, arranged sequentially from the inside to the outside, with the top as the center. The top of the grinding box is provided with a feed trough communicating with the inner grinding chamber. The bottom of the inner grinding chamber is communicating with the outer grinding chamber, and the bottom of the outer grinding chamber is communicating with the discharge chamber. The discharge chamber is provided with a discharge port communicating with the outside of the grinding box.

[0007] The inner grinding chamber is equipped with an inner grinding mechanism; the outer grinding chamber is equipped with an outer grinding mechanism; and the discharge chamber is equipped with a discharge mechanism.

[0008] Furthermore, the internal grinding mechanism includes an internal grinding wheel and a primary grinding filter plate. The internal grinding wheel is rotatably arranged, and the primary grinding filter plate is U-shaped and embedded in the bottom wall of the internal grinding chamber.

[0009] Furthermore, the external grinding mechanism is symmetrically arranged in two sets. The external grinding mechanism includes an external grinding wheel and a secondary grinding filter plate. The secondary grinding filter plate is generally L-shaped and is embedded at the bottom corner of the external grinding cavity. The external grinding wheel is rotatably located at the inner axis of the secondary grinding filter plate.

[0010] Furthermore, cutting blades are embedded and arranged on the inner side of the secondary grinding filter plate.

[0011] Furthermore, both the inner grinding chamber and the outer grinding chamber are equipped with a pressing mechanism. The two pressing mechanisms are located above the inner grinding mechanism and the outer grinding mechanism, respectively. The pressing mechanism includes an electric rotating rod symmetrically arranged on the chamber wall.

[0012] Furthermore, the discharge mechanism includes a discharge plate disposed below the outer grinding chamber. The discharge plate has an inclined state and a horizontal state, and the inclined state and horizontal state of the discharge plate are switched by a drive mechanism. When the discharge plate is in the inclined state, the material can be discharged out of the grinding chamber through the discharge port.

[0013] Furthermore, a recessed platform is formed in the middle section of both sides of the cavity wall of the external grinding chamber; the driving mechanism includes driving cylinders symmetrically arranged in the discharge chamber, with the two ends of the two driving cylinders respectively rotatably connected to the discharge plate and the recessed platform, and the discharge ports are symmetrically arranged.

[0014] Furthermore, the drive cylinder is connected to the discharge plate via a movable rotating shaft.

[0015] Furthermore, a suction and filtration mechanism is symmetrically arranged at the top of the outer grinding chamber. The suction and filtration mechanism includes a fan, which is embedded in the cavity wall between the outer grinding chamber and the discharge chamber. A filter assembly is arranged inside the fan.

[0016] Furthermore, the bottom of the external grinding chamber is provided with a discharge valve port, which is connected to the discharge chamber.

[0017] The beneficial technical effects of this utility model are:

[0018] In the first stage of cement raw material grinding, the inner grinding chamber in the middle is used as the grinding space. The raw material fed into the top feed trough is ground by the inner grinding wheel and the first-stage grinding filter plate. The raw material is then ground and diffused into the outer grinding chamber and enters the second-stage grinding space. The second-stage grinding filter plate and the outer grinding wheel in the outer grinding chamber are used to grind the raw material from both sides, thus completing the multi-stage processing of cement raw materials.

[0019] Second, in addition, the outer grinding chamber is symmetrically fitted with fans to extract the dust in the grinding chamber, and together with the inner filter components, the dust is adsorbed to ensure the cleanliness of the grinding space.

[0020] 3. Electric rotating plates are installed on the inner and outer grinding wheels. The angle of the electric rotating plates is adjusted to limit the grinding of raw materials, thereby ensuring cement grinding.

[0021] IV. The material discharge mechanism, consisting of a drive cylinder, a movable rotating shaft, and a discharge plate, receives the raw materials discharged from the top through the discharge plate and forms a ramp structure by lifting and lowering the drive cylinder to facilitate the material discharge operation. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the internal structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the two-stage grinding filter plate of this utility model;

[0024] Figure 3 yes Figure 1 Enlarged view of part A;

[0025] The parts in the attached diagram are labeled as follows:

[0026] 1. Grinding box; 11. Feed chute;

[0027] 2. Internal grinding chamber; 21. Internal grinding wheel; 22. Primary grinding filter plate;

[0028] 3. External grinding chamber; 31. External grinding wheel; 32. Secondary grinding filter plate; 321. Cutting blade; 33. Recessed platform; 34. Discharge valve port;

[0029] 4. Discharge chamber; 41. Discharge plate; 42. Drive cylinder; 43. Movable rotating shaft;

[0030] 5. Electric rotating mast;

[0031] 60. Fan; 61. Filter assembly. Detailed Implementation

[0032] In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0033] This specific embodiment discloses in detail a grading and grinding device for cement production, such as... Figures 1 to 3As shown, the grinding chamber includes a grinding box 1. The interior of the grinding box is divided into an inner grinding chamber 2, an outer grinding chamber 3, and a discharge chamber 4, with the top as the center and arranged sequentially from the inside to the outside. The top of the grinding box is provided with a feed trough 11 that communicates with the inner grinding chamber. The bottom of the inner grinding chamber communicates with the outer grinding chamber. The bottom of the outer grinding chamber communicates with the discharge chamber. The discharge chamber is provided with a discharge port that communicates with the outside of the grinding box.

[0034] The inner grinding chamber is equipped with an inner grinding mechanism; the outer grinding chamber is equipped with an outer grinding mechanism; and the discharge chamber is equipped with a discharge mechanism.

[0035] Preferably, the internal grinding mechanism includes an internal grinding wheel 21 and a primary grinding filter plate 22. The internal grinding wheel is rotatably arranged, and the primary grinding filter plate is U-shaped and embedded in the bottom wall of the internal grinding chamber.

[0036] Preferably, two sets of external grinding mechanisms are symmetrically arranged. The external grinding mechanism includes an external grinding wheel 31 and a secondary grinding filter plate 32. The secondary grinding filter plate is generally L-shaped and is embedded at the bottom corner of the external grinding cavity. The external grinding wheel is rotatably arranged at the inner axis of the secondary grinding filter plate.

[0037] Preferably, the inner side of the secondary grinding filter plate is provided with cutting blades 321.

[0038] Preferably, both the inner grinding chamber and the outer grinding chamber are provided with a pressing mechanism, and the two pressing mechanisms are respectively located above the inner grinding mechanism and the outer grinding mechanism. The pressing mechanism includes an electric rotating rod 5 symmetrically arranged on the cavity wall.

[0039] Preferably, the discharge mechanism includes a discharge plate 41 disposed below the outer grinding chamber. The discharge plate has an inclined state and a horizontal state, and the inclined state and horizontal state of the discharge plate are switched by a drive mechanism. When the discharge plate is in the inclined state, the material can be discharged out of the grinding chamber through the discharge port.

[0040] Preferably, the inner wall of the outer grinding chamber has a recessed platform 33 formed in the middle section of both sides; the driving mechanism includes driving cylinders 42 symmetrically arranged in the discharge chamber, the two ends of the two driving cylinders are respectively rotatably connected to the discharge plate and the recessed platform, and the discharge port is symmetrically arranged.

[0041] Preferably, the drive cylinder is connected to the discharge plate via a movable rotating shaft 43.

[0042] Preferably, a suction filter mechanism is symmetrically arranged at the top of the outer grinding chamber. The suction filter mechanism includes a fan 60, which is embedded in the cavity wall between the outer grinding chamber and the discharge chamber. A filter assembly 61 is arranged inside the fan.

[0043] Preferably, the bottom of the external grinding chamber is provided with a discharge valve port 34, which is connected to the discharge chamber.

[0044] It is worth noting that:

[0045] In this invention, the inner grinding wheel, outer grinding wheel, electric rotary rod, drive cylinder, discharge valve, and blower are all connected to a drive device to ensure normal operation. The walls of each level of the internal chambers of the grinding chamber should be removable to facilitate component replacement and maintenance. The primary and secondary grinding filter plates should have perforations or grooves for material to fall through. The electric rotary rod, also known as an electric rotating plate, opens upwards when material enters the grinding chamber, and rotates downwards after the material enters. The blower can be connected to the outside of the grinding chamber to allow gas flow. The material receiving mechanism is not part of the technical content of this solution, therefore, its method of receiving material is not described in detail.

[0046] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "front", "rear", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0048] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A classifying and grinding device for cement production, characterized in that: The grinding chamber includes a grinding box (1). The interior of the grinding box is divided into an inner grinding chamber (2), an outer grinding chamber (3), and a discharge chamber (4) from the inside out, with the top as the center. The top of the grinding box is provided with a feed trough (11) that communicates with the inner grinding chamber. The bottom of the inner grinding chamber communicates with the outer grinding chamber. The bottom of the outer grinding chamber communicates with the discharge chamber. The discharge chamber is provided with a discharge port that communicates with the outside of the grinding box. The inner grinding chamber is equipped with an inner grinding mechanism; the outer grinding chamber is equipped with an outer grinding mechanism; and the discharge chamber is equipped with a discharge mechanism.

2. The classifying and grinding device for cement production according to claim 1, characterized in that: The internal grinding mechanism includes an internal grinding wheel (21) and a primary grinding filter plate (22). The internal grinding wheel is rotatably arranged, and the primary grinding filter plate is U-shaped and is embedded in the bottom wall of the internal grinding chamber.

3. A classifying and grinding device for cement production according to claim 1, characterized in that: The external grinding mechanism is symmetrically arranged in two sets. The external grinding mechanism includes an external grinding wheel (31) and a secondary grinding filter plate (32). The secondary grinding filter plate is generally L-shaped and is embedded at the bottom corner of the external grinding cavity. The external grinding wheel is rotatably arranged at the inner axis of the secondary grinding filter plate.

4. A classifying and grinding device for cement production according to claim 3, characterized in that: Cutting blades (321) are embedded and arranged on the inner side of the secondary grinding filter plate.

5. A classifying and grinding device for cement production according to claim 1, characterized in that: Both the inner grinding chamber and the outer grinding chamber are equipped with a pressing mechanism. The two pressing mechanisms are located above the inner grinding mechanism and the outer grinding mechanism, respectively. The pressing mechanism includes an electric rotating rod (5) symmetrically arranged on the cavity wall.

6. A classifying and grinding device for cement production according to claim 1, characterized in that: The discharge mechanism includes a discharge plate (41) disposed below the outer grinding chamber. The discharge plate has an inclined state and a horizontal state. The inclined state and the horizontal state of the discharge plate are switched by a drive mechanism. When the discharge plate is in an inclined state, the material can be discharged out of the grinding chamber through the discharge port.

7. A grading and grinding device for cement production according to claim 6, characterized in that: The inner wall of the outer grinding chamber has a recessed platform (33) formed in the middle section of both sides; the driving mechanism includes driving cylinders (42) symmetrically arranged in the discharge chamber, the two ends of the two driving cylinders are respectively rotatably connected to the discharge plate and the recessed platform, and the discharge port is symmetrically arranged.

8. A classifying and grinding device for cement production according to claim 7, characterized in that: The drive cylinder is connected to the discharge plate via a movable rotating shaft (43).

9. A classifying and grinding device for cement production according to claim 1, characterized in that: The top of the outer grinding chamber is symmetrically provided with a suction filter mechanism, which includes a fan (60). The fan is embedded in the cavity wall between the outer grinding chamber and the discharge chamber, and a filter assembly (61) is provided inside the fan.

10. A classifying and grinding device for cement production according to claim 1, characterized in that: The bottom of the external grinding chamber is provided with a discharge valve port (34), which is connected to the discharge chamber.

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