Cement clinker calcining and decomposing device

Abstract

The utility model discloses a cement clinker calcining and decomposing device, which relates to the technical field of cement clinker production and comprises a supporting frame, a plurality of supporting rods are arranged on one side of the top end of the supporting frame, a fuel connecting cylinder is arranged at the top ends of the supporting rods, a feeding cylinder is arranged at one end of the fuel connecting cylinder, and a preheating assembly is arranged at the top end of the feeding cylinder. A fixing rod is arranged on the other side of the top end of the supporting frame, a discharging box is arranged at the top end of the fixing rod and connected with the feeding cylinder through a furnace cylinder assembly, and an exhaust pipe is arranged at the top end of the discharging box. According to the utility model, by arranging the preheating assembly, the cement raw material can be preheated, so that the cement raw material can reach the firing temperature more quickly, thereby effectively shortening the time required by calcination and decomposition, not only improving the production efficiency, but also reducing the heat consumption of clinker firing, and further improving the overall production benefit.

Description

Technical Field

[0001] This utility model relates to the field of cement clinker production technology, and more specifically, to a cement clinker calcination and decomposition device. Background Technology

[0002] Cement clinker is a solid product resulting from high-temperature calcination during cement production. It is typically produced by mixing raw materials such as limestone, clay, and iron ore, and then sintering them at high temperatures in a rotary kiln. In the cement manufacturing process, the calcination and decomposition of cement clinker is a crucial step, directly impacting the quality of the final cement product and production efficiency. Traditional cement clinker calcination processes usually involve the use of high-temperature kilns, such as rotary kilns, where raw materials (such as limestone and clay) are heated to very high temperatures to achieve chemical transformation and optimize mineral composition.

[0003] However, in the operation of traditional cement clinker calcination and decomposition equipment, raw meal is typically fed into the furnace for calcination. This process is highly dependent on a large amount of heat energy, leading to a significant increase in fuel consumption, thereby increasing production costs and reducing energy efficiency. Furthermore, uneven heating of the raw meal within the furnace can cause some raw meal to fail to complete the expected chemical reaction. This not only results in differences in the composition and properties of the final product but may also lead to unreacted carbonate residues in the clinker, thus affecting the quality and strength properties of the cement.

[0004] There are currently no effective solutions to the problems in the relevant technologies. Utility Model Content

[0005] In view of the problems in the related technologies, this utility model proposes a cement clinker calcination and decomposition device to overcome the above-mentioned technical problems existing in the existing related technologies.

[0006] Therefore, the specific technical solution adopted by this utility model is as follows:

[0007] A cement clinker calcination and decomposition device includes a support frame, a plurality of support rods are provided on one side of the top of the support frame, a fuel connecting cylinder is provided at the top of the support rods, a feed cylinder is provided at one end of the fuel connecting cylinder, and a preheating component is provided at the top of the feed cylinder; a fixing rod is provided on the other side of the top of the support frame, a discharge box is provided at the top of the fixing rod, the discharge box is connected to the feed cylinder through a furnace cylinder assembly, and an exhaust pipe is provided at the top of the discharge box.

[0008] Furthermore, in order to increase the functionality of the calcination and decomposition device and improve its working efficiency, a fixing hole is provided at the top of the support frame to match the discharge box.

[0009] Furthermore, in order to connect to the burner, calcine and decompose the cement raw materials, and improve production efficiency, a fuel hole is provided at the other end of the fuel connecting cylinder.

[0010] Furthermore, in order to effectively shorten the time required for calcination and decomposition and improve the overall production efficiency, the preheating component includes a feed hopper set at the top of the feed cylinder, a preheating cylinder set at the top of the feed hopper, a heat exchange tube set on the outer circumference of the preheating cylinder, and a feed pipe set on the outer circumference of the heat exchange tube; an exhaust pipe is installed through the top of the feed hopper.

[0011] Furthermore, in order to enhance the heat exchange efficiency between the raw materials and the heat source and improve the overall calcination and decomposition effect, the furnace cylinder assembly includes a furnace body set between the discharge box and the feed cylinder. Gear rings are symmetrically arranged on the outer circumference of the furnace body, and spiral plates are set on the inner wall of the furnace body. Several auxiliary plates are set between the spiral plates. The auxiliary plates are arranged linearly and at equal intervals. The cross-section of the auxiliary plates is set as an arc structure. The furnace cylinder assembly also includes mounting plates symmetrically arranged on the top of the support frame. One end of the mounting plate is provided with a gear that meshes with the gear ring, and the other end of the mounting plate is provided with a motor. The output shaft of the motor is connected to the gear.

[0012] The beneficial effects of this utility model are as follows:

[0013] 1. By setting up a preheating component, this utility model can preheat cement raw materials, enabling them to reach the firing temperature more quickly, thereby effectively shortening the time required for calcination and decomposition. This not only improves production efficiency but also reduces the heat consumption of clinker firing, thereby further enhancing the overall production benefits.

[0014] 2. By setting up a furnace drum assembly, this utility model can ensure that cement raw materials are evenly distributed in the calcination and decomposition device, avoiding local accumulation or uneven concentration. This helps to enhance the heat exchange efficiency between the raw materials and the heat source, promotes rapid and uniform heat transfer, and makes the chemical reaction more uniform and efficient, thereby improving the overall calcination and decomposition effect. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of a cement clinker calcination and decomposition device according to an embodiment of the present utility model;

[0017] Figure 2 yes Figure 1 A magnified view of a section at point A in the middle;

[0018] Figure 3 This is a cross-sectional view of a cement clinker calcination and decomposition device according to an embodiment of the present utility model;

[0019] Figure 4 yes Figure 3 A magnified view of a section at point B in the middle.

[0020] In the picture:

[0021] 1. Support frame; 2. Support rod; 3. Fuel connection cylinder; 4. Feed cylinder; 5. Preheating assembly; 501. Feed hopper; 502. Preheating cylinder; 503. Heat exchange tube; 504. Feed pipe; 505. Gas outlet pipe; 6. Fixing rod; 7. Discharge box; 8. Furnace cylinder assembly; 801. Furnace body; 802. Gear ring; 803. Spiral plate; 804. Auxiliary plate; 805. Mounting plate; 806. Gear; 807. Motor; 9. Exhaust pipe; 10. Fixing hole; 11. Fuel hole. Detailed Implementation

[0022] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0023] According to an embodiment of the present invention, a cement clinker calcination and decomposition device is provided.

[0024] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-4 As shown, the cement clinker calcination and decomposition device according to an embodiment of the present invention includes a support frame 1. A plurality of support rods 2 are provided on one side of the top of the support frame 1. A fuel connecting cylinder 3 is provided at the top of the support rod 2. A feed cylinder 4 is provided at one end of the fuel connecting cylinder 3. A preheating component 5 is provided at the top of the feed cylinder 4. A fixing rod 6 is provided on the other side of the top of the support frame 1. A discharge box 7 is provided at the top of the fixing rod 6. The discharge box 7 is connected to the feed cylinder 4 through a furnace tube assembly 8. An exhaust pipe 9 is provided at the top of the discharge box 7.

[0025] By utilizing the above-described technical solution of this utility model, the preheating component 5 enables the cement raw meal to be preheated, allowing it to reach the firing temperature more quickly. This effectively shortens the time required for calcination and decomposition, which not only improves production efficiency but also reduces the heat consumption of clinker firing, thereby further enhancing overall production benefits. The furnace drum component 8 ensures uniform distribution of the cement raw meal within the calcination and decomposition device, preventing localized accumulation or uneven concentration. This helps enhance the heat exchange efficiency between the raw meal and the heat source, promoting rapid and uniform heat transfer, resulting in more uniform and efficient chemical reactions, thus improving the overall calcination and decomposition effect.

[0026] In one embodiment, the support frame 1 is provided with a fixing hole 10 at its top end that matches the discharge box 7, thereby increasing the functionality of the calcination and decomposition device and improving its working efficiency.

[0027] In one embodiment, the other end of the fuel connecting cylinder 3 is provided with a fuel hole 11, which is connected to the burner to calcine and decompose the cement raw materials, thereby improving production efficiency.

[0028] In one embodiment, the preheating component 5 includes a feed hopper 501 disposed at the top of the feed cylinder 4, a preheating cylinder 502 disposed at the top of the feed hopper 501, a heat exchange tube 503 disposed on the outer circumference of the preheating cylinder 502, and a feed pipe 504 disposed on the outer circumference of the heat exchange tube 503; an exhaust pipe 505 is disposed through the top of the feed hopper 501, and a filter screen is disposed at the bottom of the exhaust pipe 505 to prevent raw material from being discharged through the exhaust pipe 505, ensuring that only hot air can escape from the exhaust pipe 505, while the raw material is effectively intercepted, maintaining the efficiency of the raw material processing process and the cleanliness of the system, thereby effectively shortening the time required for calcination and decomposition and improving the overall production efficiency.

[0029] In one embodiment, the furnace cylinder assembly 8 includes a furnace body 801 disposed between the discharge box 7 and the feed cylinder 4. Gear rings 802 are symmetrically arranged on the outer circumference of the furnace body 801. Spiral plates 803 are disposed on the inner wall of the furnace body 801, and a plurality of auxiliary plates 804 are disposed between the spiral plates 803. The auxiliary plates 804 are arranged linearly and equidistantly, and the cross-section of the auxiliary plates 804 is set as an arc structure. The furnace cylinder assembly 8 also includes a mounting plate 805 symmetrically disposed at the top of the support frame 1. One end of the mounting plate 805 is provided with a gear 806 that meshes with the gear ring 802, and the other end of the mounting plate 805 is provided with a motor 807. The output shaft of the motor 807 is connected to the gear 806, thereby helping to enhance the heat exchange efficiency between the raw material and the heat source and improve the overall calcination and decomposition effect.

[0030] It should be further explained that the bottom end of the heat exchange tube 503 is connected to an external hot blast stove. The hot blast stove generates a high-temperature hot airflow and blows this hot airflow into the bottom end of the heat exchange tube 503. Inside the heat exchange tube 503, the hot airflow and the raw material flow in opposite directions. Through this counter-current heat exchange method, the temperature of the raw material gradually increases. The preheated raw material then enters the furnace barrel assembly 8 to continue the subsequent calcination process. This not only improves the heat utilization efficiency but also ensures that the raw material can reach a suitable preheating temperature before entering the calcination stage, thereby optimizing the effect of the entire calcination and decomposition process.

[0031] One end of the fuel port 11 is connected to an external burner. The burner mixes fuel (such as coal, natural gas, or oil) with air and ignites it to generate a high-temperature flame. The flame transfers heat into the furnace barrel assembly 8, providing the necessary temperature conditions for the calcination and decomposition reaction of cement raw materials. This ensures that the raw materials can undergo sufficient chemical reaction within the furnace barrel assembly 8, thereby transforming into cement clinker. It not only provides the necessary heat for the raw materials but also helps maintain temperature stability within the furnace barrel assembly 8, ensuring the smooth progress of the calcination reaction. This is existing technology and will not be elaborated upon further here.

[0032] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0033] In practical applications, cement raw materials enter the heat exchange tube 503 through the feed pipe 504. Since the bottom end of the heat exchange tube 503 is connected to an external hot blast stove, the hot air generated by the hot blast stove is blown in from the bottom end of the heat exchange tube 503, allowing the hot air and raw materials to exchange heat within the heat exchange tube 503. The preheated raw materials, along with the hot air, enter the preheating cylinder 502. Inside the preheating cylinder 502, the raw materials and gas rotate, generating centrifugal force. Due to the larger mass of the raw materials, the centrifugal force is stronger, pushing them against the inner wall of the preheating cylinder 502 and moving downwards along the wall, falling into the feed cylinder 4 through the feed hopper 501. The lighter hot air, however, exits through the outlet. The raw material is discharged through pipe 505; the preheated raw material enters the furnace assembly 8 from the feed cylinder 4. Since the fuel hole 11 is connected to the external burner, the burner sprays high-temperature flames into the furnace assembly 8 through the fuel hole 11 for calcination and decomposition. At the same time, the controller synchronously drives the motor 807, which drives the gear 806 to rotate. Since the gear ring 802 meshes with the gear 806, it drives the furnace body 801 to rotate. Under the action of the spiral plate 803 and the auxiliary plate 804, the raw material in the furnace body 801 is fully calcined and decomposed and moves towards the discharge box 7. After the calcination and decomposition is completed, the clinker falls from the discharge box 7 into the collection box for subsequent processing.

[0034] In summary, by utilizing the above-mentioned technical solution of this utility model, the preheating component 5 can preheat the cement raw meal, enabling it to reach the calcination temperature more quickly. This effectively shortens the time required for calcination and decomposition, which not only improves production efficiency but also reduces the heat consumption of clinker calcination, thereby further enhancing overall production benefits. By setting the furnace drum component 8, the cement raw meal can be evenly distributed within the calcination and decomposition device, avoiding localized accumulation or uneven concentration. This helps enhance the heat exchange efficiency between the raw meal and the heat source, promoting rapid and uniform heat transfer, resulting in more uniform and efficient chemical reactions, thus improving the overall calcination and decomposition effect.

[0035] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., 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 connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cement clinker calcination and decomposition device, comprising a support frame (1), characterized in that, The support frame (1) has several support rods (2) on one side of its top end. The support rods (2) have fuel connecting cylinders (3) at their top ends. The fuel connecting cylinders (3) have feed cylinders (4) at one end. The feed cylinders (4) have preheating components (5) at their top ends. A fixing rod (6) is provided on the other side of the top of the support frame (1), and a discharge box (7) is provided at the top of the fixing rod (6). The discharge box (7) is connected to the feed cylinder (4) through the furnace cylinder assembly (8), and an exhaust pipe (9) is provided at the top of the discharge box (7).

2. The cement clinker calcination and decomposition device according to claim 1, characterized in that, The top of the support frame (1) is provided with a fixing hole (10) that matches the discharge box (7).

3. The cement clinker calcination and decomposition device according to claim 1, characterized in that, The other end of the fuel connecting cylinder (3) is provided with a fuel hole (11).

4. The cement clinker calcination and decomposition device according to claim 1, characterized in that, The preheating component (5) includes a feed hopper (501) disposed at the top of the feed cylinder (4), a preheating cylinder (502) disposed at the top of the feed hopper (501), a heat exchange tube (503) disposed on the outer circumference of the preheating cylinder (502), and a feed pipe (504) disposed on the outer circumference of the heat exchange tube (503). An air outlet pipe (505) is provided through the top of the feed hopper (501).

5. The cement clinker calcination and decomposition device according to claim 4, characterized in that, The furnace cylinder assembly (8) includes a furnace body (801) disposed between the discharge box (7) and the feed cylinder (4). Gear rings (802) are symmetrically arranged on the outer circumference of the furnace body (801). Spiral plates (803) are provided on the inner wall of the furnace body (801), and several auxiliary plates (804) are arranged between the spiral plates (803).

6. The cement clinker calcination and decomposition device according to claim 5, characterized in that, The auxiliary plates (804) are arranged linearly and at equal intervals, and the cross-section of the auxiliary plates (804) is set as an arc-shaped structure.

7. The cement clinker calcination and decomposition device according to claim 6, characterized in that, The furnace cylinder assembly (8) also includes a mounting plate (805) symmetrically arranged at the top of the support frame (1). One end of the mounting plate (805) is provided with a gear (806) that meshes with the gear ring (802), and the other end of the mounting plate (805) is provided with a motor (807). The output shaft of the motor (807) is connected to the gear (806).

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