A device for cooling cement clinker after calcination
By combining the muffle furnace body with the cooling rack, the uniform cooling of cement clinker is achieved using a suction fan and a temperature controller, which solves the problems of low efficiency and heat waste of traditional cooling devices, improves heat utilization, and avoids clinker agglomeration and cracking.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TONGCHUAN PRODUCT QUALITY SUPERVISION & INSPECTION INSTITUTE
- Filing Date
- 2025-08-12
- Publication Date
- 2026-06-23
AI Technical Summary
Traditional cement clinker cooling devices have low cooling efficiency, insufficient heat recovery rate, and the clinker is prone to agglomeration. Existing technologies have failed to achieve synergistic utilization of thermal energy.
The design incorporates a combination of a muffle furnace body, cooling rack, air inlet pipe, air outlet pipe, sealing components, suction fan, and temperature controller. The suction fan creates a negative pressure zone, the cooling holes evenly discharge hot air, and the temperature controller controls the initial air temperature for gradient cooling.
It achieves uniform cooling of cement clinker, avoids clinker agglomeration, improves heat energy utilization efficiency, and prevents cement clinker cracking.
Smart Images

Figure CN224398348U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of industrial cooling equipment technology, specifically to a cooling device for cement clinker after calcination. Background Technology
[0002] Traditional cement clinker cooling methods often employ grate coolers or single-cylinder coolers, which suffer from low cooling efficiency, insufficient heat recovery, and clinker agglomeration. Meanwhile, laboratory muffle furnaces typically rely on natural cooling or forced air cooling for cooling, which is time-consuming and results in the direct discharge of high-temperature waste heat, leading to energy waste. In existing technologies, cement cooling and muffle furnace cooling systems are independent of each other, failing to achieve synergistic utilization of thermal energy. Therefore, there is an urgent need for a cooling device for cement clinker after calcination to solve the above problems. Utility Model Content
[0003] The purpose of this invention is to address the deficiencies and shortcomings of the existing technology by providing a cooling device for cement clinker after calcination, the technical features of which can solve the above-mentioned problems.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: it includes a muffle furnace body; the muffle furnace body is a hollow box-type structure;
[0005] It also includes:
[0006] The cooling rack is a hollow frame structure, and several cooling holes are provided through the upper wall of the cooling rack.
[0007] The air inlet pipe is installed on the right side wall of the muffle furnace body, and the air outlet pipe is installed on the left side wall of the muffle furnace body, and the air outlet pipe is connected to the left side of the cooling rack.
[0008] A sealing assembly is disposed on the muffle furnace body and is connected in a continuous manner to the air inlet pipe and the air outlet pipe.
[0009] The suction fan is fixed on the left side wall of the muffle furnace body and is connected to the air outlet pipe. The suction fan is also connected to an external power source.
[0010] Furthermore, the blocking assembly includes:
[0011] The sealing tubes consist of two tubes, which are respectively connected to the air inlet pipe and the air outlet pipe. Two sealing rods are respectively movably inserted into the corresponding sealing tubes, and the bottom ends of the sealing rods cooperate and abut against the air inlet pipe and the air outlet pipe.
[0012] The movable frame is movably fitted onto the box body of the muffle furnace body, and the bottom end of the vertical rod of the movable frame is fixedly connected to the corresponding sealing rod.
[0013] An electric push rod is fixed to the muffle furnace body, and the output end of the electric push rod is fixedly connected to the crossbar of the moving frame. The electric push rod is connected to an external power source.
[0014] Furthermore, each of the two sealing rods is fitted with a rubber ring, and the rubber ring is fitted and abuts against the inner wall of the sealing tube.
[0015] Furthermore, a sealing ring is fixedly fitted on both sealing rods, and the sealing ring is set to cooperate and abut against the sealing tube.
[0016] Furthermore, limit rings are symmetrically fixed on the left and right side walls of the muffle furnace body, and the vertical rod of the movable frame is movably inserted into the limit rings.
[0017] Furthermore, a temperature controller is provided on the right side of the muffle furnace body, and the temperature adjustment terminal of the temperature controller is located on the annular wall of the air inlet pipe.
[0018] Compared with the prior art, the beneficial effects of this utility model are: This utility model provides a cooling device for cement clinker after calcination. By cooperating with the suction fan and the cooling rack, the heat inside the muffle furnace body can be evenly discharged, thereby making the cement clinker cool down evenly around its perimeter. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model.
[0020] Figure 2 This is a schematic diagram of the cooling rack in this utility model.
[0021] Figure 3 This is a schematic diagram of the sealing component in this utility model.
[0022] Figure 4 This is a schematic diagram of the structure of the muffle furnace body and the temperature controller in this utility model.
[0023] Explanation of reference numerals in the attached figures:
[0024] 1. Muffle furnace body; 2. Cooling rack; 3. Cooling hole; 4. Air inlet pipe; 5. Air outlet pipe; 6. Sealing assembly; 7. Blower; 8. Sealing pipe; 9. Sealing rod; 10. Moving frame; 11. Electric push rod; 12. Rubber ring; 13. Sealing ring; 14. Limiting ring; 15. Temperature controller. Detailed Implementation
[0025] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. The preferred embodiments described are only examples. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0026] likeFigures 1-4 As shown, this specific embodiment adopts the following technical solution: it includes a muffle furnace body 1; the muffle furnace body 1 is a hollow box-type structure;
[0027] It also includes:
[0028] Cooling rack 2, the cooling rack 2 is a hollow frame structure, and several cooling holes 3 are opened through the upper wall of the cooling rack 2, so that air can be blown evenly onto the product using the cooling rack 2;
[0029] An air inlet pipe 4 is installed on the right side wall of the muffle furnace body 1, and an air outlet pipe 5 is installed on the left side wall of the muffle furnace body 1. The air outlet pipe 5 is connected to the left side of the cooling rack 2. The air inlet pipe 4 and the air outlet pipe 5 work together to facilitate the circulation of air inside the muffle furnace body 1. A temperature controller 15 is provided on the right side of the muffle furnace body 1, and the temperature adjustment end of the temperature controller 15 is located on the ring wall of the air inlet pipe 4 to control the initial temperature of the air entering the muffle furnace body 1, so as to perform gradient cooling of the product and avoid cracking of the product due to rapid cooling.
[0030] The sealing component 6 is installed on the muffle furnace body 1 and is connected to the air inlet pipe 4 and the air outlet pipe 5 to facilitate the control of the closure of the air inlet pipe 4 and the air outlet pipe 5 and prevent heat loss.
[0031] The suction fan 7 is fixed on the left side wall of the muffle furnace body 1 and is connected to the air outlet pipe 5. The suction fan 7 is connected to an external power source to facilitate the exhaust of heat from the muffle furnace body 1.
[0032] Blocking component 6 includes:
[0033] Two sealing pipes 8 are provided, each connected to an air inlet pipe 4 and an air outlet pipe 5 respectively. Two sealing rods 9 are movably inserted into the corresponding sealing pipes 8. The bottom end of the sealing rod 9 abuts against the air inlet pipe 4 and the air outlet pipe 5, controlling the movement of the sealing rod 9 within the sealing pipe 8 to facilitate the closure of the air inlet pipe 4 and the air outlet pipe 5. Rubber rings 12 are fitted on each of the two sealing rods 9, and the rubber rings 12 abut against the inner wall of the sealing pipe 8 to improve the sealing performance between the sealing rod 9 and the sealing pipe 8. The heat insulation effect of the rubber rings 12 is used to prevent heat loss from the sealing pipe 8. Sealing rings 13 are fixedly fitted on each of the two sealing rods 9, and the sealing rings 13 abut against the sealing pipe 8. When the bottom end of the sealing rod 9 abuts against the air inlet pipe 4 and the air outlet pipe 5, the sealing rings 13 close the opening of the sealing rod 9, improving the sealing effect.
[0034] The movable frame 10 is movably fitted onto the box of the muffle furnace body 1, and the bottom end of the vertical rod of the movable frame 10 is fixedly connected to the corresponding sealing rod 9. The movable frame 10 drives the two sealing rods 9 to move synchronously and in the same direction. Limiting rings 14 are symmetrically fixed on the left and right side walls of the muffle furnace body 1. The vertical rod of the movable frame 10 is movably inserted into the limiting ring 14. By using the limiting effect of the limiting ring 14, the vertical rod of the movable frame 10 is restricted to the side of the muffle furnace body 1 to prevent the movable frame 10 from bending under force.
[0035] An electric push rod 11 is fixed on the muffle furnace body 1, and the output end of the electric push rod 11 is fixedly connected to the crossbar of the moving frame 10. The electric push rod 11 is connected to an external power source, and the moving direction of the moving frame 10 is controlled by the electric push rod 11.
[0036] When using this invention, after the muffle furnace body 1 has finished calcining the cement clinker, the temperature controller 15 is first activated to adjust the initial temperature of the air entering through the air inlet pipe 4. The electric push rod 11 is then activated, which drives the moving frame 10 to rise. The moving frame 10 drives the two sealing rods 9 to rise synchronously until the sealing rods 9 move into the sealing pipe 8, thereby opening the air inlet pipe 4 and the air outlet pipe 5. The suction fan 7 is then activated, creating a negative pressure zone inside the cooling rack 2. The hot air inside the muffle furnace body 1 is discharged through the cooling holes 3, and at the same time, air is drawn into the muffle furnace body 1 through the air inlet pipe 4, thereby replacing the air inside the muffle furnace body 1. Since the cement clinker is placed inside the cooling rack 2 and the cooling holes 3 are distributed around the cement clinker, the surrounding area of the cement clinker is cooled evenly. In conjunction with the temperature controller 15 controlling the initial temperature of the air entering the muffle furnace body 1, the cement clinker is cooled in a gradient manner, preventing cracking of the cement clinker.
[0037] Compared with the prior art, the beneficial effects of this utility model are:
[0038] The suction fan 7 creates a negative pressure zone inside the cooling rack 2, and the hot air inside the muffle furnace body 1 is evenly absorbed through the cooling holes 3, which facilitates the cooling and temperature reduction of cement clinker.
[0039] The sealing component 6 is set up, and the movement of the moving frame is controlled by the electric push rod 11. The moving frame drives the sealing rod 9 to move synchronously, thereby controlling the opening and closing of the air inlet pipe 4 and the air outlet pipe 5 to prevent heat loss at the sealing pipe 8.
[0040] A limit ring 14 is provided to support the vertical rod of the moving frame 10, so as to prevent the moving frame 10 from shifting under force and affecting the sealing effect on the air inlet pipe 4 and the air outlet pipe 5.
[0041] A temperature controller 15 is installed to control the initial temperature inside the air inlet pipe 4, thereby gradually cooling the cement clinker and preventing it from cracking.
[0042] For those skilled in the art, modifications can be made to the technical solutions described in the foregoing embodiments, and equivalent substitutions can be made to some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A cooling device for cement clinker after calcination, comprising a muffle furnace body (1); the muffle furnace body (1) is a hollow box-type structure; Its features are, It also includes: Cooling rack (2), the cooling rack (2) is a hollow frame structure, and several cooling holes (3) are opened through the upper rod wall of the cooling rack (2). The air inlet pipe (4) is installed on the right side wall of the muffle furnace body (1), and the air outlet pipe (5) is installed on the left side wall of the muffle furnace body (1), and the air outlet pipe (5) is connected to the right side of the cooling rack (2). The sealing component (6) is installed on the muffle furnace body (1) and is connected in a through manner to the air inlet pipe (4) and the air outlet pipe (5); The suction fan (7) is fixed on the left side wall of the muffle furnace body (1) and is connected to the air outlet pipe (5). The suction fan (7) is connected to an external power source.
2. The cooling device for cement clinker after calcination according to claim 1, characterized in that: The blocking component (6) includes: There are two sealing pipes (8), which are respectively connected to the air inlet pipe (4) and the air outlet pipe (5). Two sealing rods (9) are respectively inserted into the corresponding sealing pipes (8). The bottom end of the sealing rod (9) is in contact with the air inlet pipe (4) and the air outlet pipe (5). The movable frame (10) is movably fitted on the box of the muffle furnace body (1), and the bottom end of the vertical rod of the movable frame (10) is fixedly connected to the corresponding sealing rod (9). Electric push rod (11) is fixed on the muffle furnace body (1), and the output end of the electric push rod (11) is fixedly connected to the crossbar of the moving frame (10). The electric push rod (11) is connected to an external power source.
3. A cooling device for cement clinker after calcination according to claim 2, characterized in that: Two sealing rods (9) are fitted with rubber rings (12), and the rubber rings (12) are fitted to the inner wall of the sealing tube (8).
4. A cooling device for cement clinker after calcination according to claim 2, characterized in that: Both sealing rods (9) are fixedly fitted with sealing rings (13), and the sealing rings (13) are engaged with the sealing tubes (8) in abutment.
5. A cooling device for cement clinker after calcination according to claim 2, characterized in that: Limiting rings (14) are symmetrically fixed on the left and right side walls of the muffle furnace body (1), and the vertical rod of the moving frame (10) is movably inserted into the limiting rings (14).
6. A cooling device for cement clinker after calcination according to claim 1, characterized in that: The muffle furnace body (1) is provided with a thermostat (15) on the right side, and the temperature adjustment end of the thermostat (15) is set on the ring wall of the air inlet pipe (4).