A cement cooling device

Abstract

The utility model discloses a cement cooling device, including circular or square casing is located the rotation unloading bin or rotation unloading ware of casing top end and is located the discharge bin of casing bottom, and the equal distribution of at least one cooling baffle is equipped with in the casing to divide and form at least two cooling chambers in the casing. The cooling device of the utility model is designed to the high temperature cement powder after the grinding, can realize the dispersion evenness in the cement powder unloading process, thereby improves the cooling efficiency, avoids the partial accumulation to cause the nonuniform cooling, and simultaneously, based on the further optimization of the cooling device, can realize the automatic cleaning of the cement powder that the cooling chamber surface adheres after the equipment shutdown, effectively avoids the cement powder of long -term use and easily adhering in the cooling chamber inner wall, and then influences the cooling effect.

Description

Technical Field

[0001] This utility model belongs to the field of cooling equipment technology, and in particular relates to a cement cooling device. Background Technology

[0002] The grinding process in cement production generates a significant amount of heat, most of which is absorbed by the cement, resulting in a mill exit temperature typically between 100-130℃, or even higher. Excessive mill exit temperature can lead to gypsum dehydration and false setting of the cement, affecting cement quality and causing problems such as decreased concrete strength and increased slump, ultimately impacting the quality of the concrete and the overall construction project. As construction requirements become increasingly stringent, the quality requirements for cement are also becoming more stringent. Cement temperature is a crucial factor affecting cement quality, especially in projects such as tunnels, roads and bridges, submarine engineering, and reservoir dams, where the mill exit temperature must be below 70℃. Therefore, cement cooling is extremely important in the cement production process.

[0003] Currently, cement coolers commonly used in cement plants are mostly spiral-type. This traditional spiral-type cement cooler causes cement dust to adhere and harden onto the inner surface, forming a deposit layer. This reduces the equipment's heat transfer efficiency and consequently affects cooling efficiency. Furthermore, cement dust hardens and adheres to the propeller blades, making cleaning difficult and requiring frequent replacement, increasing maintenance costs and impacting the profitability of cement production companies.

[0004] Therefore, a special cooling device for cooling cement powder is designed to ensure uniform dispersion and improve cooling efficiency. Utility Model Content

[0005] Purpose of the utility model: The technical problem to be solved by this utility model is to provide a device that can uniformly disperse ground cement and achieve fully uniform cooling.

[0006] Technical solution: The cement cooling device of this utility model includes a shell, a rotating feeding hopper located at the top of the shell and a discharge hopper located at the bottom of the shell. At least one cooling baffle is evenly distributed inside the shell to divide the shell into at least two cooling chambers.

[0007] The rotary feeding hopper includes a conical hopper body with a discharge pipe corresponding to the cooling chambers. The top of the conical hopper body has a feed inlet. A rotary distributing hopper body is located inside the conical hopper body to achieve uniform dispersion of cement powder. A drive motor is located on the conical hopper body and connected to the rotary distributing hopper body to drive its rotation. The rotary distributing hopper body includes a hopper body with a port at the top that is connected to the feed inlet. The hopper body is connected to the drive motor. At least one discharge chute is located on the side wall of the hopper body and connected to the hopper body. The other end of the discharge chute corresponds to the discharge pipe. During the process of the drive motor driving the hopper body to rotate, the cement powder to be cooled entering the hopper body is rotated and evenly dispersed into at least two cooling chambers.

[0008] The cement cooling device of this utility model includes a shell, a feeding hopper at the top of the shell and a discharging hopper at the bottom of the shell, and at least one cooling baffle is evenly distributed inside the shell to divide the shell into at least two cooling chambers.

[0009] The feeding hopper has a feeding port, and a rotary feeder is provided in the feeding hopper corresponding to the feeding port to evenly disperse the cement powder into the cooling chamber. The rotary feeder includes a drive motor fixed in the feeding hopper by a support plate and a toggle frame assembly connected to the drive motor. The toggle frame assembly includes a connecting seat connected to the drive motor and a plurality of toggle frames arranged on the connecting seat.

[0010] Furthermore, the housing of the cooling device of this utility model can be circular or square, and at least one cooling baffle is evenly distributed along the axial direction inside the housing.

[0011] Furthermore, when the housing of the cooling device of this utility model is square, a discharge port is provided on both sides of the bottom end of the housing corresponding to the cooling chamber, and the discharge port is connected to the discharge hopper, so as to realize that the cement powder entering the cooling chamber is discharged from both sides to the discharge hopper.

[0012] Based on the square-shaped cooling device of this utility model, the bottom end of the cooling baffle is integrated with a roof-shaped housing. The roof-shaped housing has symmetrical actuators extending through its top. The top of the two actuators is connected to a feeding plate that is inclined towards the discharge ports on both sides, so that the feeding plate can move up and down under the drive of the actuator to self-clean the cooling baffle.

[0013] Based on the square-shaped cooling device of this utility model, a vibrator is further provided on the end face of the feeding plate away from the material contact to promote the discharge of material from the feeding plate.

[0014] Furthermore, the cooling device of this utility model has water inlet pipes evenly installed on one side of the bottom end of the shell, and water outlet pipes evenly installed on the other side of the top of the shell. The interior of the cooling baffle is hollow to form a cooling water chamber. The water inlet pipes correspond one-to-one with the cooling water chambers and are connected to the interior of the cooling water chambers. The water outlet pipes also correspond one-to-one with the cooling water chambers and are connected to the interior of the cooling water chambers.

[0015] Furthermore, a powder mass flow meter is provided at the discharge port at the bottom of the discharge hopper of the cooling device of this utility model.

[0016] Beneficial effects: Compared with the prior art, the advantages of this utility model are as follows: This cooling device is specifically designed for high-temperature cement powder after grinding, which can achieve uniform dispersion of cement powder during the feeding process, thereby improving cooling efficiency and avoiding local accumulation that would cause uneven cooling; at the same time, based on further optimization of this cooling device, it can realize timely automatic cleaning of cement powder adhering to the surface of the cooling chamber after the equipment is stopped, which can effectively prevent some cement powder from adhering to the inner wall of the cooling chamber due to long-term use, thus affecting the cooling effect. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of the circular cooling device (with a rotating feeding hopper) of this utility model;

[0018] Figure 2 This is a structural schematic diagram of the square cooling device (with a rotating feeding hopper) of this utility model;

[0019] Figure 3 This is a structural schematic diagram of the square cooling device (with a rotary feeder) of this utility model;

[0020] Figure 4 This is a schematic diagram of the arrangement of the cooling baffles within the housing of the circular cooling device of this utility model;

[0021] Figure 5 This is a schematic diagram of the arrangement of the cooling baffles within the housing of the square cooling device of this utility model;

[0022] Figure 6 This is a schematic diagram of the internal structure of the square cooling device of this utility model;

[0023] Figure 7 This is a schematic diagram of the structure of the rotary feeder of this utility model. Figure 1 ;

[0024] Figure 8 This is a schematic diagram of the structure of the rotary feeder of this utility model. Figure 2 (Half-section conical compartment);

[0025] Figure 9This is a schematic diagram of the structure of the rotary feeder of this utility model;

[0026] Figure 10 This is a schematic diagram of the material discharge bin of this utility model. Detailed Implementation

[0027] The technical solution of this utility model will be further described in detail below with reference to the accompanying drawings.

[0028] This utility model discloses a cement cooling device for cooling high-temperature cement powder that requires cooling after grinding. Specifically, the cooling device includes a housing 1, a rotary feeding device located at the top of the housing 1 (which can be a rotary feeding hopper 2 or a rotary feeder), and a discharge hopper 3 located at the bottom of the housing 1. At least one cooling baffle 4 is arranged inside the housing 1 to divide the interior into at least two cooling chambers, thereby achieving efficient cooling of the cement powder through these at least two cooling chambers. The housing 1 can be circular or square, such as... Figures 1 to 3 As shown, due to the different shapes and structures of the two shells 1, the arrangement of the cooling baffles 4 inside the shells 1 differs. The discharge hopper 3 adopts a conical structure with a discharge port at the bottom, which facilitates the smooth entry of cement powder into subsequent conveying equipment such as air conveying chute or screw conveyor; this structure ensures that the powder discharged from the cooling chamber can seamlessly transition to the subsequent process flow, improving the connection efficiency and automation level of the entire production line.

[0029] When the shell 1 is circular, it can have one or more cooling baffles 4, with the top of each baffle being pointed. When the circular shell 1 has one cooling baffle 4, the shell cavity is divided into two cooling chambers. When the circular shell 1 has multiple cooling baffles 4, these baffles can be evenly distributed circumferentially, further dividing the shell 1 cavity into multiple cooling chambers, such as... Figure 4 As shown, multiple cooling baffles 4 can be supported and connected by the central support column 26.

[0030] When the shell 1 has a square structure, at least one cooling baffle 4 can be arranged inside it to divide the shell 1 into at least two cooling chambers. The bottom ends of these cooling chambers are closed, meaning the cooled cement powder is discharged from the two sides of the shell. Figure 5As shown. Specifically, each cooling chamber has a discharge port 18 on both sides of the housing 1, and these discharge ports 18 are connected to the discharge hopper 3 located at the bottom of the housing 1, so that the cooled cement powder discharged from the side directly enters the discharge hopper 3 and is finally discharged from the discharge hopper 3. The bottom of several cooling chambers is sealed because each cooling chamber, at the bottom of the cooling baffle 4, is equipped with a cleaning component that can promptly self-clean the corresponding cooling baffle 4 after the equipment is stopped. Figure 6 As shown. The cleaning assembly includes a roof-type housing 19 integrated at the bottom of the cooling baffle. Actuators 20 are symmetrically arranged on the left and right sides within the roof-type housing 19, with the top of each actuator 20 penetrating the roof of the housing 19. The actuators 20 can be electric (e.g., electric cylinders), hydraulic (e.g., hydraulic cylinders), or pneumatic (e.g., air cylinders), achieving linear motion. The equipment and methods used in this linear motion actuator 20 are well-known in the art and will not be described in detail here. A discharge plate 21 is connected to the top of the actuator 20, and both discharge plates 21 on the left and right sides are inclined towards their respective discharge ports 18, with the two discharge plates 21 connected to form a pointed shape. A vibrator 22 is provided on the side of the discharge plate 21 facing the top of the roof-type housing 19. This vibrator is a well-known vibrator in the art, and a suitable model can be used depending on the size of the cement cooling device of this invention. The vibrator 22 facilitates the discharge of material from the discharge plate 21.

[0031] For example, a cylinder can be used (e.g., cylinder model: QGB200; working pressure: 0.8Mpa; working voltage: 220V, 50Hz), or a suitable model can be used according to the size of the cement cooling device of this utility model. The cylinder drives the feeding plate 21 to move up and down reciprocally. During the lifting and lowering process, the edge of the feeding plate 21 is in close contact with the inner wall of the cooling baffle 4. In conjunction with the lateral vibration generated by the vibrator 22, the powder on the inner wall is scraped off while the attached particles are shaken off, effectively preventing the wall blockage.

[0032] The cooling device based on the shell and cooling chambers of this utility model further includes a rotary feeding device for uniformly dispersing the incoming cement powder into each cooling chamber. This rotary feeding device can be a rotary feeding bin 2 or a rotary feeder. Specifically, as shown... Figure 7 and Figure 8As shown, the rotary feeding bin 2 includes a conical bin body 6 and at least one discharge pipe 5 disposed on the conical bin body 6 and connected to its bottom end. The rotary feeding bin 2 is preferably matched with a circular shell 1, with the discharge pipe 5 corresponding to a cooling chamber. When two cooling chambers are formed within the shell 1, a discharge pipe 5 is provided on the conical bin body 6 at each of the two cooling chambers. Similarly, when multiple cooling chambers are formed within the shell 1, the conical bin body 6 is provided with the same number of discharge pipes 5, all in corresponding positions. A feed inlet 7 is provided at the top of the conical bin body 6, and a drive motor 9 is connected to the bottom end of the conical bin body 6. The output shaft of the drive motor 9 extends through the conical bin body 6 to connect to a rotary fabric feeding bin 8, meaning the drive motor 9 can drive the rotary fabric feeding bin 8 to rotate. The rotating material distribution bin 8 includes a bin body 10 connected to a drive motor 9. The top of the bin body 10 has a port communicating with the inlet 7. At least one discharge chute 11 can be provided on the side wall of the bin body 10, with the other end of the discharge chute 11 facing and corresponding to the discharge pipe 5. Driven by the drive motor 9, the bin body 10 rotates, thereby rotating the discharge chute 11, so that cement powder is evenly distributed into each cooling chamber through the discharge pipe 5, improving cooling efficiency.

[0033] For either a circular or square shell 1, the rotary feeding device can employ a rotary feeding bin 2 or a rotary feeder to achieve uniform dispersion. When the shell 1 is circular and the rotary feeding device is a rotary feeding bin 2, the discharge pipe 5 of the rotary feeding bin 2 can be arranged circumferentially, corresponding to the cooling chamber. When the shell 1 is square and the rotary feeding device is a rotary feeding bin 2, the position and length of the discharge pipe 5 of the rotary feeding bin 2 can be adaptively adjusted according to the layout of the cooling chamber, so that one discharge pipe corresponds to one independent cooling chamber.

[0034] When a circular or square shell 1 is used, and a rotary feeder is employed to achieve uniform dispersion, a feeding hopper 12 is provided above the shell 1. The top of the feeding hopper 12 has a feeding port 7. A rotary feeder passes through the feeding hopper 12 at the feeding port 7. The rotary feeder includes a drive motor 9 and a prying frame assembly 15 connected to the drive motor 9. The prying frame assembly 15 includes a connecting seat 16 connected to the drive motor 9 and several prying frames 17 arranged on the connecting seat 16. The prying frames 17 can be cylindrical rollers, such as… Figure 9 As shown, the several actuating frames 17 are arranged in a circumferential manner with small gaps, similar to several blades. Thus, when the drive motor 9 drives the connecting seat 16 to rotate, the several actuating frames 17 continuously actuate the cement powder entering from the feed inlet 7 into different cooling chambers, so as to achieve uniform dispersion as much as possible.

[0035] For the rotary feeding hopper 2 or the rotary feeder, both can be supported on the housing 1 by a support frame 28 or a support plate 14. The two rotary feeding devices described above in this invention ensure that cement powder is evenly dispersed into different cooling chambers, and after cooling, the cooling baffles 4 can be self-cleaned in a timely manner. This dual approach achieves higher cooling efficiency and improves operational efficiency. The drive speed of the rotary feeding device's drive motor can be adjusted according to the actual feeding volume; adjustments can be made based on actual operation.

[0036] Taking a square shell as an example, water inlet pipes 23 are evenly installed on one side of the bottom of the shell 1, and water outlet pipes 24 are evenly installed on the other side of the top of the shell 1. The interior of the cooling baffle 4 is hollow to form a cooling water flow chamber 28. The water inlet pipes 23 correspond one-to-one with the cooling water flow chambers 27 and are connected to the interior of the cooling water flow chambers 27. The water outlet pipes 24 also correspond one-to-one with the cooling water flow chambers 27 and are connected to the interior of the cooling water flow chambers 27. A water temperature detection device is installed on the cooling water outlet pipe to detect the temperature of the cooling water after heat exchange. The cooling baffle 4 adopts a hollow structure and is provided with cooling water flow chambers 27, through which circulating cooling water is introduced to achieve efficient heat exchange. Cooling water is injected through the bottom inlet pipe 23, flows through the cooling water flow chamber 27, and is discharged through the top outlet pipe. Each cooling water flow chamber 27 is closed and independent, thus ensuring that each area of ​​each cooling water flow chamber 27 has an independent cooling path, avoiding temperature unevenness caused by cooling deviation.

[0037] At the upper end of the discharge port of the discharge hopper 3 of this utility model, a powder mass flow meter 25 is also provided, which is a flow regulating device known in the art, such as... Figure 10 The square discharge hopper is shown. Precise discharge is achieved by adjusting the powder mass flow meter 25.

Claims

1. A cement cooling device, characterized in that, The cooling device includes a housing (1), a rotating feed bin (2) located at the top of the housing (1), and a discharge bin (3) located at the bottom of the housing (1). At least one cooling baffle (4) is evenly distributed inside the housing (1) to divide the housing (1) into at least two cooling chambers. The rotary feeding hopper (2) includes a conical hopper (6) with a discharge pipe (5) corresponding to the cooling chamber, a feed inlet (7) at the top of the conical hopper (6), a rotary spreading hopper (8) located inside the conical hopper (6) to achieve uniform dispersion of cement powder, and a drive motor (9) located on the conical hopper (6) and connected to the rotary spreading hopper (8) to drive its rotation; the rotary spreading hopper (8) includes a discharge pipe (5) at the top of the discharge hopper (6) corresponding to the cooling chamber (7), a feed inlet (7) at the top of the conical hopper (6), a rotary spreading hopper (8) for ... conical hopper (6) corresponding to the discharge pipe (5) at the top of the discharge hopper (6), a rotary spreading hopper (8), a rotary spreading hopper (8), a rotary spreading hopper (8), a rotary spreading hopper (8), a rotary spreading hopper (8), a rotary spreading hopper (8), a rotary spreading hopper (8), a rotary spreading hopper (8), a rotary spreading hopper (8), a rotary spreading hopper (8), a rotary spreading hopper (8), a rotary spreading hopper (8), a rotary spreading hopper (8), a rotary spreading hopper (8), a rotary spreading hopper (8), a rotary spreading hopper (8), a rotary spreading hopper (8), a rotary spreading hopper (8), a rotary spreading hopper (8), a rotary spreading 7) A silo body (10) connected to the port, the silo body (10) being connected to the drive motor (9), and at least one discharge chute (11) provided on the side wall of the silo body (10) and connected to the silo body (10). The other end of the discharge chute (11) is corresponding to the discharge pipe (5). During the process of the drive motor (9) driving the silo body (10) to rotate, the cement powder to be cooled entering the silo body (10) is rotated and evenly dispersed into at least two cooling chambers.

2. A cement cooling device, characterized in that, The cooling device includes a housing (1), a feed chamber (12) located at the top of the housing (1) and a discharge chamber (3) located at the bottom of the housing (1). At least one cooling baffle (4) is evenly distributed inside the housing (1) to divide the housing (1) into at least two cooling chambers. The feeding hopper (12) is provided with a feeding port (7). A rotary feeder is provided in the feeding hopper (12) corresponding to the feeding port (7) to make the cement powder entering the cooling chamber evenly dispersed. The rotary feeder includes a drive motor (9) fixed in the feeding hopper (12) by a support plate (14) and a toggle frame assembly (15) connected to the drive motor (9). The toggle frame assembly (15) includes a connecting seat (16) connected to the drive motor (9) and a plurality of toggle frames (17) arranged on the connecting seat (16).

3. The cement cooling device according to claim 1 or 2, characterized in that, The housing (1) is circular or square, and at least one cooling baffle (4) is evenly distributed along the axial direction inside the housing (1).

4. The cement cooling device according to claim 2, characterized in that, The shell (1) is square. On both sides of the bottom end of the shell (1) corresponding to the cooling chamber, there are discharge ports (18). The discharge ports (18) are connected to the discharge bin (3) so that the cement powder entering the cooling chamber can be discharged from both sides to the discharge bin (3).

5. The cement cooling device according to claim 4, characterized in that, The bottom end of the cooling baffle (4) is integrated with a roof-type housing (19). The roof-type housing (19) is symmetrically provided with actuators (20) that pass through its top. The top ends of the two actuators (20) are connected to a discharge plate (21) that is inclined to both sides of the discharge port, so that the discharge plate (21) can move up and down under the drive of the actuator (20) to self-clean the cooling baffle (4).

6. The cement cooling device according to claim 5, characterized in that, A vibrator (22) is connected to the end face of the feeding plate (21) away from the material contact to promote the discharge of material on the feeding plate (21).

7. The cement cooling device according to claim 1 or 2, characterized in that, Water inlet pipes (23) are evenly installed on one side of the bottom end of the housing (1), and water outlet pipes (24) are evenly installed on the other side of the top of the housing (1). The interior of the cooling baffle (4) is hollow to form a cooling water chamber. The water inlet pipes (23) correspond one-to-one with the cooling water chambers and are connected to the interior of the cooling water chambers. The water outlet pipes (24) correspond one-to-one with the cooling water chambers and are also connected to the interior of the cooling water chambers.

8. The cement cooling device according to claim 1 or 2, characterized in that, A powder mass flow meter (25) is provided at the discharge port at the bottom of the discharge hopper (3).

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