Cement raw material mixing equipment

Abstract

The utility model relates to the technical field of cement production, and discloses cement raw material mixing equipment. The cement raw material mixing equipment comprises a roller press device, a raw material mixing and screening mechanism is installed in the roller press device, and a cement raw material mixing and crushing mechanism is installed in front of the roller press device. The feeding hopper is installed above the roller press device, cement materials are fed into the roller press device through the feeding head, the mud pressing barrel is installed in the roller press device and crushes the fed materials, the overturning belt is connected to the outer portion of the mud pressing barrel in a sleeved mode, the overturning belt rotates through the motor, and the roller press device is driven by the motor to rotate. Materials falling from the four sides of the sieve plate can be repeatedly rotated in the roller press device, so that the materials are repeatedly ground by the mud pressing barrel, the primary crushing degree of cement raw materials during production can be improved, and the crushing degree and the utilization degree of the raw materials in the later period are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cement production, in particular to cement raw material mixing equipment. Background Art

[0002] Cement is a powder made from mineral raw materials through sintering, grinding and other processes. It is also a common building material. Cement is mainly used in the manufacture of concrete structures, such as buildings, bridges, tunnels and ports. Cement can also improve the strength and durability of buildings, making them more solid and durable. For this purpose, a cement raw material mixing equipment is proposed for use.

[0003] The existing referenceable Chinese utility model patent with announcement number: CN218872324U discloses a roller press in the process of preparing mixed cement, which belongs to the technical field of cement production. In this technical scheme, it includes a box body and a water tank, the water tank is located on the outer wall of the box body, a water inlet is provided on the upper part of the water tank, a drain pipe is provided on the lower part of the water tank, a feed hopper is provided on the upper part of the box body, a meshing stirring gear set is provided in the middle part of the box body, a cleaning brush is provided on the inner wall of the box body above the stirring gear set, a third motor is provided on one side of the stirring gear set, a through hole is provided on the side wall of the box body at the third motor, the output shaft of the third motor is connected to the fan blade, a cover is provided on the side away from the third motor, a negative fan is installed on one side of the cover, the negative fan is connected to the air duct, the air duct is connected to the bottom of the water tank, the lower part of the box body is a finished product chamber, and a finished product drawer is provided in the finished product chamber. In practical applications, the cement raw materials are crushed by the stirring gear set, and the fan blades and negative fans are used to clean and cool the inside of the roller press.

[0004] Based on the search of the above patents and in combination with the equipment in the prior art, it was found that since clinker and mixture are ground by traditional combined grinding method during cement production, clinker particles cannot be fully ground and the strength cannot be fully exerted, resulting in high clinker consumption. In addition, when the roller press is used for the initial crushing of cement raw materials, it can only crush them but cannot refine them, which will lead to low production capacity of the equipment. The existence of these problems has affected the use of the device. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a cement raw material mixing equipment, which has the advantages of finely crushing cement raw materials and improving equipment production capacity, and solves the above technical problems.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a cement raw material mixing device, comprising a roller press device, a raw material mixing and screening mechanism is installed inside the roller press device, a cement raw material mixing and crushing mechanism is installed in front of the roller press device, and the raw material mixing and screening mechanism comprises: a mud pressing cylinder installed on both sides of the roller press device, a turning belt for repeatedly turning over cement is sleeved on the outside of the mud pressing cylinder, and a motor is connected to one side of the turning belt, a bearing for equipment rotation is movably connected to the front midpoint of the mud pressing cylinder, a gear ring is installed in the middle and rear of the bearing, and a rotating motor is connected to the end of the bearing;

[0009] The cement raw material mixing and crushing mechanism includes: a ball mill installed in front of the roller press device, a large gear ring is fixedly installed on the outside of one side of the ball mill, and an inner lining plate is fixedly installed on the inner wall of the ball mill, and steel balls are installed inside the inner lining plate, a feed and discharge screw for material input and output is fixedly installed on the opposite side of the large gear ring, and a bracket is installed at the lower part of the outside of the ball mill.

[0010] As an optimal technical solution of the utility model, a conveying device is installed below the roller press device, and a base plate is installed at the bottom of the conveying device, and support frames are fixedly installed on both sides below the base plate, and a servo motor is connected to one side of the conveying device; the support frame supports the bottom of the conveying device.

[0011] As a preferred technical solution of the utility model, a feed hopper is provided at the midpoint of the bottom of the roller press device, and a discharge port is penetrated directly below the feed hopper, and a sieve plate is installed above the discharge port; the sieve plate screens the cement.

[0012] As the preferred technical solution of the utility model, the end of the bearing passes through the front of the roller press device and is connected to the mud pressing cylinder, and the screen plate is installed above the discharge port through a support, the flip belt passes through the middle of the screen plate, and the distance between the mud pressing cylinders is 5 cm; the mud pressing cylinder crushes the cement.

[0013] As a preferred technical solution of the utility model, the width of the conveying device is consistent with the width of the discharge port, and the conveying device is rotated by a servo motor, and the end of the conveying device is located in front of the ball mill; the servo motor can drive the conveying device to move.

[0014] As the preferred technical solution of the utility model, the bracket is connected to both ends of the ball mill, and a number of steel balls are arranged, the shape of the feeding and discharging spiral is trumpet-shaped, and the number of ball mill and roller press device arranged is 1:3; the roller press device can crush the raw materials for cement.

[0015] As a preferred technical solution of the utility model, the support frame is also fixedly installed on both sides below the roller press device, and the rotating motor is located on both sides of the conveying device; the rotating motor can drive the mud pressing cylinder to rotate.

[0016] Compared with the prior art, the utility model provides a cement raw material mixing device having the following

[0017] Beneficial effects:

[0018] 1. The utility model installs a feed hopper on the top of the roller press device, and feeds cement materials into the roller press device through the feed head. A mud pressing cylinder is installed inside the roller press device, and the mud pressing cylinder crushes the materials fed in. The outer part of the mud pressing cylinder is sleeved with a turning belt, which is rotated by a motor, and the materials falling from the four sides of the screen plate can be repeatedly rotated inside the roller press device, so that the materials are repeatedly polished by the mud pressing cylinder, which can improve the initial crushing degree of cement raw materials during production, and improve the crushing degree and utilization of raw materials in the later stage;

[0019] 2. The utility model arranges a ball mill in front of the roller press device. The ball mill grinds the material crushed by the roller press device for secondary processing by rotating. The ratio of the number of roller press devices to the number of ball mill devices is 3:1, so that one ball mill can drive the output of three roller press devices. The matching setting of the ball mill and the roller press device plays a role of primary crushing and reprocessing. At the same time, the production capacity of the ball mill can be improved, and the cement clinker particles can be ground to the required fineness to produce higher strength, which can effectively reduce the consumption of clinker materials, reduce production costs, and generate greater economic benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the ball mill assembly of the utility model structure;

[0022] Figure 3 This is a schematic diagram of the roller press assembly of the utility model structure;

[0023] Figure 4 This is a schematic diagram of the components of the transmission device structure of the utility model;

[0024] Among them: 1. Roller press device; 11. Feed hopper; 12. Turning belt; 13. Motor; 14. Screen plate; 15. Mud pressing cylinder; 16. Gear ring; 17. Bearing; 18. Rotating motor; 19. Discharge port; 2. Conveying device; 21. Support frame; 22. Bottom plate; 23. Servo motor; 3. Ball mill; 31. Big gear ring; 32. Bracket; 33. Lining plate; 34. Steel wire ball; 35. Inlet and outlet spiral. DETAILED DESCRIPTION

[0025] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0026] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0027] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0028] See also Figure 1 — Figure 4 In this embodiment, a cement raw material mixing device includes a roller press device 1, a raw material mixing and screening mechanism is installed inside the roller press device 1, a cement raw material mixing and crushing mechanism is installed in front of the roller press device 1, and the raw material mixing and screening mechanism includes: a mud pressing cylinder 15 installed on both sides of the roller press device 1, a flip belt 12 is sleeved on the outside of the mud pressing cylinder 15, and a motor 13 is connected to one side of the flip belt 12, a bearing 17 is movably connected to the midpoint of the front of the mud pressing cylinder 15, and a gear ring 16 is installed in the middle and rear of the bearing 17, and the end of the bearing 17 is connected to It is connected to a rotating motor 18; a feed hopper 11 is provided at the midpoint of the bottom of the roller press device 1, and a discharge port 19 is passed through directly below the feed hopper 11, and a sieve plate 14 is installed above the discharge port 19; the end of the bearing 17 passes through the front of the roller press device 1 and is connected to the mud pressing cylinder 15, and the sieve plate 14 is installed above the discharge port 19 through a support, the turning belt 12 passes through the middle of the sieve plate 14, and the distance between the mud pressing cylinders 15 is 5 cm; the support frame 21 is also fixedly installed on both sides of the bottom of the roller press device 1, and the rotating motor 18 is located on both sides of the conveying device 2.

[0029] Specifically, a feed hopper 11 is arranged above the roller press device 1, and the cement raw material is fed into the roller press device 1 through the feed hopper 11, and a mud pressing cylinder 15 is arranged inside the roller press device 1. The distance between the mud pressing cylinders 15 is 5 cm, and the material can be initially crushed and then discharged through the discharge port 19. A sieve plate 14 is arranged above the discharge port 19, and the sieve plate 14 screens the crushed material of different sizes, and a reversing belt 12 passes through the bottom of the sieve plate 14, and the reversing belt 12 is arranged on the outside of the mud pressing cylinder 15, and the reversing belt 12 is rotated by the motor 13, and the cement material scattered on the four sides of the sieve plate 14 can be rotated to be ground again, so that the roller press device 1 can crush the material more finely, thereby improving the processing capacity rate in the later stage.

[0030] A conveying device 2 is installed below the roller press device 1, and a base plate 22 is installed at the bottom of the conveying device 2, and support frames 21 are fixedly installed on both sides below the base plate 22, and a servo motor 23 is connected to one side of the conveying device 2; the width of the conveying device 2 is consistent with the width of the discharge port 19, and the conveying device 2 is rotated by the servo motor 23, and the end of the conveying device 2 is located in front of the ball mill 3.

[0031] Specifically, a conveyor 2 is installed below the discharge port 19. When the discharge port 19 discharges the processed material, the conveyor 2 is rotated by the servo motor 23 to transport the crushed material to the end of the conveyor 2. A ball mill 3 is installed at the end of the conveyor 2 to crush the material again.

[0032] The cement raw material mixing and crushing mechanism includes: a ball mill 3 installed in front of a roller press device 1, a large gear ring 31 is fixedly installed on the outside of one side of the ball mill 3, and an inner lining plate 33 is fixedly installed on the inner wall of the ball mill 3, and steel balls 34 are installed inside the inner lining plate 33, a feed and discharge screw 35 is fixedly installed on the opposite side of the large gear ring 31, and a bracket 32 ​​is installed at the lower part of the outside of the ball mill 3; the bracket 32 ​​is connected to both ends of the ball mill 3, and the number of steel balls 34 is several, the shape of the feed and discharge screw 35 is trumpet-shaped, and the number of ball mills 3 and roller press device 1 is 1:3.

[0033] Specifically, the equipment to be ground is installed inside the ball mill 3. As the cylinder of the ball mill 3 rotates, the grinding media such as the lining plate 33 and the steel balls 34 inside the ball mill 3 will crush, impact and rub the material, so that the material is gradually ground into the required fine powder, and then the fine material is discharged through the setting of the feed and discharge screw 35.

[0034] When in use, first prepare three roller press devices 1 and one ball mill 3. The hourly capacity of each roller press device 1 is 110 t / h, and the total hourly capacity of the three roller press devices is 330 t / h. The hourly capacity of the ball mill 3 is 440 t / h, and the ball mill 3 is used as a secondary mixing and grinding device. After implementation, the annual grinding capacity is 3.48 million tons. When the cement material enters the roller press device 1 through the feed hopper 11 above the roller press device 1, a mud pressing cylinder 15 is arranged inside the roller press device 1. The mud pressing cylinder 15 is rotated by the connected bearing 17 and the rotating motor 18, so that the two mud pressing cylinders 15 with a distance of 5 cm process the put-in materials, and the processed materials fall onto the top of the sieve plate 14, and the sieve plate 14 screens the size of the materials. At the same time, a flip belt 12 runs through the bottom of the sieve plate 14, and the flip belt 12 is rotated by the motor 13, and the flip belt 12 is arranged outside the two mud pressing cylinders 15. When the flip belt 12 is rotating, the The scattered materials at the screen plate 14 are turned over so that the materials are ground again to make them fine. Then the materials fall to the top of the conveyor 2 through the discharge port 19. The conveyor 2 is rotated by the servo motor 23 to continuously convey the materials above. A ball mill 3 is arranged at the other end of the conveyor 2. The ball mill 3 uses the feeding and discharging screws 35 on one side to hold the materials, and uses the internal lining plate 33 and steel wire balls 34 and other grinding media to crush, impact and rub the materials, so that the materials are gradually ground into the required fine powder. Finally, a 500 chute is added below the second roller press device 1 to input the mixed material powder into the mixed material semi-finished product warehouse, and a 630 chute is added at the ball mill 3 to transfer the clinker powder to the clinker powder semi-finished product warehouse. A new outbound elevator (500t / h) and a conveying chute to the next ball mill 3 are added between the two semi-finished product warehouses, thereby improving the mixing capacity of the clinker and improving the economic benefits of the equipment production.

[0035] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cement raw material mixing device, comprising a roller press device (1), wherein a raw material mixing and screening mechanism is installed inside the roller press device (1), and a cement raw material mixing and crushing mechanism is installed in front of the roller press device (1), characterized in that: The raw material mixing and screening mechanism comprises: a mud pressing cylinder (15) installed on both sides of the roller press device (1), the outer part of the mud pressing cylinder (15) is sleeved with a turning belt (12), and one side of the turning belt (12) is connected to a motor (13), a bearing (17) is movably connected to the front midpoint of the mud pressing cylinder (15), a gear ring (16) is installed at the middle and rear of the bearing (17), and the end of the bearing (17) is connected to a rotating motor (18); The cement raw material mixing and crushing mechanism comprises: a ball mill (3) installed in front of the roller press device (1), a large gear ring (31) is fixedly installed on the outside of one side of the ball mill (3), an inner lining plate (33) is fixedly installed on the inner wall of the ball mill (3), and a steel ball (34) is installed inside the inner lining plate (33), a feed and discharge screw (35) is fixedly installed on the opposite side of the large gear ring (31), and a bracket (32) is installed on the outside and below of the ball mill (3).

2. A cement raw material mixing device according to claim 1, characterized in that: A conveying device (2) is installed below the roller press device (1), a bottom plate (22) is installed at the bottom of the conveying device (2), and support frames (21) are fixedly installed on both sides below the bottom plate (22), and a servo motor (23) is connected to one side of the conveying device (2).

3. A cement raw material mixing device according to claim 1, characterized in that: A feed hopper (11) is provided at the midpoint of the bottom of the roller press device (1), and a discharge port (19) is passed through directly below the feed hopper (11), and a sieve plate (14) is installed above the discharge port (19).

4. A cement raw material mixing device according to claim 2, characterized in that: The end of the bearing (17) passes through the front of the roller press device (1) and is connected to the mud pressing cylinder (15), and the screen plate (14) is installed above the discharge port (19) through a support, the flip belt (12) passes through the middle of the screen plate (14), and the distance between the mud pressing cylinders (15) is 5 cm.

5. A cement raw material mixing device according to claim 4, characterized in that: The width of the conveying device (2) is consistent with the width of the discharge port (19), and the conveying device (2) is rotated by a servo motor (23), and the end of the conveying device (2) is located in front of the ball mill (3).

6. A cement raw material mixing device according to claim 1, characterized in that: The support (32) is connected to both ends of the ball mill (3), and the number of steel balls (34) is several. The shape of the feeding and discharging screw (35) is trumpet-shaped, and the number of the ball mill (3) and the roller press device (1) is 1:

3.

7. A cement raw material mixing device according to claim 2, characterized in that: The support frame (21) is also fixedly installed on both sides below the roller press device (1), and the rotating motor (18) is located on both sides of the conveying device (2).

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