Cement production device capable of reducing carbon emission
By pressurizing dry ice and sealing it to collect carbon dioxide, the problem of carbon dioxide emissions pollution in cement production has been solved, achieving an environmentally friendly and efficient production process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-10
- Publication Date
- 2026-03-13
AI Technical Summary
Carbon dioxide generated during the heating process in existing cement production facilities is easily released along with the cement, leading to air and environmental pollution.
A cement production device that reduces carbon emissions is used. Carbon dioxide is pressurized by a pressurizer, made into dry ice, and then collected. The collection box is sealed by a sealing mechanism to prevent carbon dioxide from being released directly. At the same time, turning blades are used to heat the raw materials evenly.
It effectively reduces carbon dioxide pollution to the air and environment, and improves production efficiency and the uniformity of raw material heating.
Smart Images

Figure CN223988294U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cement production technology, and in particular to a cement production device that reduces carbon emissions. Background Technology
[0002] Cement is a powdery hydraulic inorganic binder that forms a paste when mixed with water. It hardens in air or water and can firmly bind materials such as sand and stone together. As an important building material, cement is widely used in civil engineering, water conservancy, national defense and other engineering fields.
[0003] During cement production, a rotary kiln is used to heat the cement raw materials. The rotary kiln produces a large amount of carbon dioxide. After the raw materials are heated, the carbon dioxide is easily discharged along with the cement. Direct discharge of carbon dioxide will pollute the surrounding air and environment. Therefore, a cement production device that reduces carbon emissions is proposed. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing production equipment, such as the large amount of carbon dioxide generated inside the rotary kiln, which is easily discharged along with the cement after the raw materials are heated, causing pollution to the surrounding air and environment. Therefore, this invention proposes a cement production device that reduces carbon emissions.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A cement production apparatus for reducing carbon emissions includes a mixing drum, a discharge pipe fixedly connected to the bottom of the mixing drum, a carbon dioxide rotary kiln installed at the bottom of the mixing drum, a connecting pipe fixedly connected to the top of the carbon dioxide rotary kiln, a first pipe fixedly connected to one side of the carbon dioxide rotary kiln, a blower installed on the first pipe, a pressurizer installed at one end of the first pipe, a second pipe installed on the pressurizer, a collection box connected to one end of the second pipe, a collection container placed inside the collection box, a pushing mechanism installed inside the collection box, and a sealing mechanism installed inside the collection container.
[0007] Preferably, a first drive motor is installed on the top of the mixing tank, the output end of the first drive motor is connected to a first rotating rod, a stirring rod is fixedly connected to the first rotating rod, the discharge pipe is fixedly connected to the top of the carbon dioxide rotary kiln, an L-shaped plate is fixedly connected to one side of the discharge pipe, an electric push rod is installed on the L-shaped plate, a baffle plate is fixedly connected to one end of the electric push rod, a first rectangular groove is opened on one side of the discharge pipe, and the baffle plate is located in the first rectangular groove.
[0008] Preferably, a second drive motor is installed on one side of the carbon dioxide rotary kiln, the output end of the second drive motor is connected to a second rotating rod, a turning blade is fixedly connected to the second rotating rod, the turning blade is located inside the carbon dioxide rotary kiln, and a discharge pipe is provided at the bottom of the carbon dioxide rotary kiln.
[0009] Preferably, the pushing mechanism includes a third drive motor, a threaded rod, and a push plate. The output end of the third drive motor is connected to the threaded rod, and the threaded rod is threadedly connected to the push plate. A second rectangular groove is provided inside the collection box, and the push plate is located inside the second rectangular groove. A limiting groove is provided at the bottom of the collection box, and the push plate is slidably connected to the limiting groove. The third drive motor is installed on one side of the collection box.
[0010] Preferably, the sealing mechanism includes a fourth drive motor, a bidirectional screw, and a sealing plate. The output end of the fourth drive motor is connected to the bidirectional screw, the bidirectional screw is threadedly connected to the sealing plate, the collection box has a rectangular opening, the top of the collection box has a rectangular cavity, the sealing plate is slidably connected to the rectangular cavity, and the fourth drive motor is installed inside the rectangular cavity.
[0011] Preferably, a first solenoid valve is installed on the first pipe, a second solenoid valve is installed on the discharge pipe, an inlet is opened at the top of the mixing tank, and a support leg is fixedly connected to the bottom of the carbon dioxide rotary kiln.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0013] 1. When using this equipment, carbon dioxide can be pressurized by a pressurizer. After being pressurized, the carbon dioxide is cooled and turned into dry ice, which falls into the collection box inside the collection tank. Two sealing plates move closer to each other along the rectangular cavity until they are completely merged together, sealing the collection box. Then, a push plate pushes the collection box out of the collection tank, preventing carbon dioxide from being directly discharged with the cement, which greatly reduces the pollution to the air and the environment.
[0014] 2. When using this equipment, the raw materials are heated, the second drive motor drives the second rotating rod to rotate, the second rotating rod drives the turning blades to rotate, the turning blades turn the raw materials, so that the raw materials can be heated more evenly, and further improve production efficiency. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a cement production device for reducing carbon emissions proposed in this utility model.
[0016] Figure 2This is a three-dimensional cross-sectional structural diagram of the mixing tank and carbon dioxide rotary kiln of a cement production device for reducing carbon emissions, as proposed in this utility model.
[0017] Figure 3 This is a three-dimensional structural diagram of the driving mechanism of a cement production device for reducing carbon emissions, as proposed in this utility model.
[0018] Figure 4 This is a three-dimensional structural diagram of the sealing mechanism of a cement production device for reducing carbon emissions, as proposed in this utility model.
[0019] In the diagram: 1. Mixing tank; 2. Discharge pipe; 3. Carbon dioxide rotary kiln; 4. Connecting pipe; 5. First pipeline; 6. Blower; 7. Compressor; 8. Second pipeline; 9. Collection box; 10. Collection container; 11. First drive motor; 12. First rotating rod; 13. Mixing rod; 14. Electric push rod; 15. Baffle plate; 16. Second drive motor; 17. Second rotating rod; 18. Tilting blade; 19. Third drive motor; 20. Threaded rod; 21. Push plate; 22. Fourth drive motor; 23. Bidirectional screw; 24. Sealing plate; 25. Rectangular cavity; 26. First solenoid valve. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0021] Reference Figures 1-4 A cement production device for reducing carbon emissions includes a mixing tank 1, a discharge pipe 2 fixedly connected to the bottom of the mixing tank 1, a carbon dioxide rotary kiln 3 installed at the bottom of the mixing tank 1, a connecting pipe 4 fixedly connected to the top of the carbon dioxide rotary kiln 3, a first pipe 5 fixedly connected to one side of the carbon dioxide rotary kiln 3, a blower 6 installed on the first pipe 5, a pressurizer 7 installed at one end of the first pipe 5, a second pipe 8 installed on the pressurizer 7, a collection box 9 connected to one end of the second pipe 8, a collection container 10 placed inside the collection box 9, a pushing mechanism installed inside the collection box 9, and a sealing mechanism installed inside the collection container 10.
[0022] The mixing tank 1 and the carbon dioxide rotary kiln 3 are equipped with support rods to reinforce the support of the mixing tank 1.
[0023] Furthermore, a first drive motor 11 is installed on the top of the mixing tank 1, and a first rotating rod 12 is connected to the output end of the first drive motor 11. A stirring rod 13 is fixedly connected to the first rotating rod 12. The discharge pipe 2 is fixedly connected to the top of the carbon dioxide rotary kiln 3. An L-shaped plate is fixedly connected to one side of the discharge pipe 2. An electric push rod 14 is installed on the L-shaped plate. A baffle plate 15 is fixedly connected to one end of the electric push rod 14. A first rectangular groove is opened on one side of the discharge pipe 2, and the baffle plate 15 is located in the first rectangular groove.
[0024] The first drive motor 11 is powered by an external device and its opening and closing are controlled. The baffle plate 15 blocks the cement raw materials. The first drive motor 11 drives the first rotating rod 12 to rotate. The first rotating rod 12 drives the stirring rod 13 to rotate. The stirring rod 13 stirs the cement raw materials so that the raw materials can be fully mixed. After the mixing is completed, the electric push rod 14 shortens and the baffle plate 15 moves out of the first rectangular groove, allowing the raw materials to fall from the discharge pipe 2 into the carbon dioxide rotary kiln 3.
[0025] After all the raw materials have fallen into the carbon dioxide rotary kiln 3, the baffle plate 15 will block them again to prevent carbon dioxide from entering the mixing tank 1 when the raw materials are heated.
[0026] Furthermore, a second drive motor 16 is installed on one side of the carbon dioxide rotary kiln 3. The output end of the second drive motor 16 is connected to a second rotating rod 17. An agitating blade 18 is fixedly connected to the second rotating rod 17. The agitating blade 18 is located inside the carbon dioxide rotary kiln 3. A discharge pipe is provided at the bottom of the carbon dioxide rotary kiln 3.
[0027] The second drive motor 16 is powered by an external device and its opening and closing are controlled. High-temperature carbon dioxide is added to the carbon dioxide rotary kiln 3 through the connecting pipe 4 to heat the raw materials. The second drive motor 16 drives the second rotating rod 17 to rotate. The second rotating rod 17 drives the turning blade 18 to rotate. The turning blade 18 turns the raw materials so that the raw materials can be heated more evenly.
[0028] After heating is complete, the blower 6 allows carbon dioxide to enter the first pipe 5 from the rotary kiln, and then enters the pressurizer 7 from the first pipe 5. The pressurizer 7 pressurizes the carbon dioxide, and the carbon dioxide is cooled down after being pressurized and made into dry ice. Then it falls into the collection box 10 in the collection box 9 through the second pipe 8.
[0029] Furthermore, the pushing mechanism includes a third drive motor 19, a threaded rod 20, and a push plate 21. The output end of the third drive motor 19 is connected to the threaded rod 20, and the threaded rod 20 is threadedly connected to the push plate 21. A second rectangular groove is provided inside the collection box 9, and the push plate 21 is located in the second rectangular groove. A limit groove is provided at the bottom of the inner side of the collection box 9, and the push plate 21 is slidably connected to the limit groove. The third drive motor 19 is installed on one side of the collection box 9.
[0030] The sealing mechanism includes a fourth drive motor 22, a bidirectional screw 23, and a sealing plate 24. The output end of the fourth drive motor 22 is connected to the bidirectional screw 23, and the bidirectional screw 23 is threadedly connected to the sealing plate 24. A rectangular opening is provided on the collection box 10, and a rectangular cavity 25 is provided on the top of the collection box 10. The sealing plate 24 is slidably connected to the rectangular cavity 25, and the fourth drive motor 22 is installed in the rectangular cavity 25.
[0031] The third drive motor 19 and the fourth drive motor 22 are powered and controlled to open and close via external equipment. Dry ice falls into the collection box 10 from the rectangular opening. After the collection box 10 has collected the dry ice, the fourth drive motor 22 drives the bidirectional screw 23 to rotate. The bidirectional screw 23 drives the two sealing plates 24 to move closer to each other along the rectangular cavity 25 until they are completely merged together, sealing the collection box 10. Then, the third drive motor 19 drives the threaded rod 20 to rotate. The threaded rod 20 drives the push plate 21 to move along the second rectangular groove. The push plate 21 pushes the collection box 10 out of the collection box 9, making it easy to remove the collection box 10 for replacement.
[0032] Meanwhile, the specific models and specifications of the first drive motor 11, the second drive motor 16, the third drive motor 19, and the fourth drive motor 22 need to be selected and determined according to the actual specifications of the device. The specific selection and calculation methods adopt the existing technology in this field, so they will not be elaborated here.
[0033] Furthermore, a first solenoid valve 26 is installed on the first pipe 5, a second solenoid valve is installed on the discharge pipe, an inlet is opened on the top of the mixing tank 1, and a support leg is fixedly connected to the bottom of the carbon dioxide rotary kiln 3.
[0034] Cement raw materials are added to the mixing tank 1 through the feed inlet. The first solenoid valve 26 controls carbon dioxide to enter the first pipe 5 from the carbon dioxide rotary kiln 3. The second solenoid valve controls the cement to be discharged from the carbon dioxide rotary kiln 3.
[0035] The working principle of this utility model:
[0036] Cement raw materials are added into the mixing tank 1 through the feed inlet. The baffle plate 15 blocks the cement raw materials. The first drive motor 11 drives the first rotating rod 12 to rotate. The first rotating rod 12 drives the mixing rod 13 to rotate. The mixing rod 13 stirs the cement raw materials so that the raw materials can be fully mixed. After the mixing is completed, the electric push rod 14 shortens and the baffle plate 15 moves out of the first rectangular groove, allowing the raw materials to fall from the discharge pipe 2 into the carbon dioxide rotary kiln 3.
[0037] High-temperature carbon dioxide is added to the carbon dioxide rotary kiln 3 through the connecting pipe 4 to heat the raw materials. The second drive motor 16 drives the second rotating rod 17 to rotate, and the second rotating rod 17 drives the turning blade 18 to rotate. The turning blade 18 turns the raw materials so that the raw materials can be heated more evenly.
[0038] After heating is completed, the blower 6 allows carbon dioxide to enter the first pipe 5 from the rotary kiln, and then enters the pressurizer 7 from the first pipe 5. The pressurizer 7 pressurizes the carbon dioxide, and the carbon dioxide is cooled down after being pressurized and made into dry ice. Then it falls into the collection box 10 in the collection box 9 through the second pipe 8.
[0039] After the dry ice collection box 10 has finished collecting, the fourth drive motor 22 drives the bidirectional screw 23 to rotate. The bidirectional screw 23 drives the two sealing plates 24 to move closer to each other along the rectangular cavity 25 until they are completely merged together to seal the collection box 10. Then, the third drive motor 19 drives the threaded rod 20 to rotate. The threaded rod 20 drives the push plate 21 to move along the second rectangular groove. The push plate 21 pushes the collection box 10 out of the collection box 9, making it easy to remove the collection box 10 for replacement.
[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A cement production plant with reduced carbon emissions, comprising a mixing drum (1), characterized in that, The bottom of the stirring barrel (1) is fixedly connected with a discharge pipe (2), the bottom of the stirring barrel (1) is provided with a carbon dioxide rotary kiln (3), the top of the carbon dioxide rotary kiln (3) is fixedly connected with a connecting pipe (4), one side of the carbon dioxide rotary kiln (3) is fixedly connected with a first pipeline (5), the first pipeline (5) is provided with a fan (6), one end of the first pipeline (5) is provided with a pressure machine (7), the pressure machine (7) is provided with a second pipeline (8), one end of the second pipeline (8) is connected with a collecting box (9), the collecting box (9) is placed with a collecting box (10), the collecting box (9) is provided with a pushing mechanism, and the collecting box (10) is provided with a sealing mechanism.
2. A cement production plant for reducing carbon emissions according to claim 1, characterized in that, The top of the stirring barrel (1) is provided with a first driving motor (11), the output end of the first driving motor (11) is connected with a first rotating rod (12), the first rotating rod (12) is fixedly connected with a stirring rod (13), the top of the discharge pipe (2) and the carbon dioxide rotary kiln (3) are fixedly connected, one side of the discharge pipe (2) is fixedly connected with an L-shaped plate, the L-shaped plate is provided with an electric push rod (14), one end of the electric push rod (14) is fixedly connected with a blocking plate (15), one side of the discharge pipe (2) is provided with a first rectangular groove, and the blocking plate (15) is located in the first rectangular groove.
3. The apparatus for producing cement with reduced carbon emissions of claim 1, wherein, One side of the carbon dioxide rotary kiln (3) is provided with a second driving motor (16), the output end of the second driving motor (16) is connected with a second rotating rod (17), the second rotating rod (17) is fixedly connected with a turning blade (18), the turning blade (18) is located in the carbon dioxide rotary kiln (3), and the bottom of the carbon dioxide rotary kiln (3) is provided with a discharge pipe.
4. The apparatus for producing cement with reduced carbon emissions of claim 1, wherein, The pushing mechanism comprises a third driving motor (19), a threaded rod (20) and a push plate (21), the output end of the third driving motor (19) is connected with the threaded rod (20), the threaded rod (20) is threadedly connected with the push plate (21), a second rectangular groove is formed in the collecting box (9), the push plate (21) is located in the second rectangular groove, a limiting groove is formed in the bottom of the collecting box (9), the push plate (21) is slidably connected with the limiting groove, and the third driving motor (19) is installed on one side of the collecting box (9).
5. The apparatus for producing cement with reduced carbon emissions of claim 1, wherein, The sealing mechanism comprises a fourth driving motor (22), a bidirectional screw rod (23) and a sealing plate (24), the output end of the fourth driving motor (22) is connected with the bidirectional screw rod (23), the bidirectional screw rod (23) is threadedly connected with the sealing plate (24), a rectangular opening is formed in the collecting box (10), a rectangular cavity (25) is formed in the top of the collecting box (10), the sealing plate (24) is slidably connected with the rectangular cavity (25), and the fourth driving motor (22) is installed in the rectangular cavity (25).
6. The apparatus for producing cement with reduced carbon emissions of claim 3, wherein, First pipeline (5) on the installation of the first solenoid valve (26), the discharge pipe on the installation of the second solenoid valve, the top of the stirring barrel (1) is provided with a feeding port, the bottom of the carbon dioxide rotary kiln (3) is fixedly connected with support leg.