A device for cascade recovery and utilization of waste heat from calcium carbide production

Abstract

This utility model relates to the field of recycling equipment technology, and discloses a cascade recycling device for waste heat from calcium carbide production. The U-ring block is fixedly installed at the bottom of the filter box. There are one auxiliary hub, which is movably connected to the left and right sides of the U-ring block. The auxiliary hub and the auxiliary wheel axle are fixedly rotating on the same track wheel. The conveying pipe is connected to the bottom of the main control box and the energy storage device. The outlet pipe is connected to the energy storage device and the electric furnace body. The electric furnace body has a rectangular groove at the connection port. The outlet pipe connection port is fixedly connected inside the rectangular groove. Through the U-ring block, auxiliary hubs, auxiliary wheel axles, and other components, the main control box controls the rotating plate to rotate in conjunction with the auxiliary hubs and auxiliary wheel axles. The rotation of the auxiliary hubs in conjunction with the auxiliary wheel axles can reduce friction on the filter box and ensure stable mechanical operation. The exhaust device can discharge excess gas inside the equipment to maintain balance.

Description

Technical Field

[0001] This utility model relates to the field of recycling equipment technology, and in particular to a cascade recycling equipment for waste heat from calcium carbide production. Background Technology

[0002] The cascade recovery and utilization of waste heat from calcium carbide production refers to the process of recovering and converting waste heat resources at different stages and temperatures during calcium carbide production into usable energy (such as electricity and heat) in stages and levels, based on the principle of "temperature matching and cascade utilization," through a series of technical means and equipment, in order to improve energy utilization efficiency, reduce energy consumption, and reduce carbon emissions.

[0003] Traditional waste heat boilers are prone to ash accumulation, corrosion, and reduced heat exchange efficiency, resulting in short equipment operating cycles and high maintenance costs. Furthermore, molten calcium carbide is typically cooled naturally or by spraying water after exiting the furnace, with a sensible heat recovery rate of less than 10%. This not only wastes energy but also generates large amounts of steam and dust during the cooling process, exacerbating environmental pollution. In addition, the heat dissipation from the furnace surface is dispersed and of low quality, making efficient recovery difficult with current technologies; most of the heat is directly released into the environment. Internationally, countries in Europe and America began research on calcium carbide waste heat recovery earlier; for example, Germany uses a combined flue gas and steam cycle technology. While waste heat recovery technology can achieve a utilization rate of up to 45%, its high equipment investment cost makes it difficult to promote in small and medium-sized calcium carbide enterprises in my country. Although some flue gas waste heat recovery devices have emerged domestically, most are limited to generating low-pressure steam for plant heating, failing to achieve cascaded conversion of waste heat for purposes such as power generation, raw material preheating, and process heating. Furthermore, the coordinated control technology between waste heat recovery systems and calcium carbide furnaces is immature, often leading to frequent system start-ups and shutdowns due to waste heat fluctuations, further reducing recovery efficiency. With increasing energy shortages and environmental pressures, the calcium carbide industry urgently needs efficient, stable, and low-cost cascaded waste heat recovery technology. Therefore, it is crucial to develop waste heat recovery devices suitable for the entire calcium carbide production process. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a cascade recovery and utilization device for waste heat from calcium carbide production, which possesses the advantages of a recovery and utilization device and solves the problems mentioned in the background technology.

[0005] This utility model provides the following technical solution: a device for the cascade recovery and utilization of waste heat from calcium carbide production, comprising a base 1, characterized in that: a main control box 2 is fixedly installed at the upper center of the base 1; a connecting pipe 3 is fixedly connected to the left center of the main control box 2; a rotating plate 4 is movably connected to the center of the connecting pipe 3; an inlet pipe 5 is fixedly connected to the surface of the rotating plate 4; a snap-fit ​​block 6 is fixedly installed at the middle end of the outer surface of the inlet pipe 5; the output end of the inlet pipe 5 is fixedly connected to a re-filter box 7; and a filter box 7 is fixedly arranged at the lower center of the filter box 7. A U-shaped block 8 has an auxiliary hub 9 movably mounted on its inner top. An auxiliary axle 10 is fixedly mounted on the middle of the outer surface of the filter box 7. An exhaust device 11 is fixedly mounted on the middle of the left end of the filter box 7. A conveying pipe 12 is fixedly connected to the bottom of the rear end of the main control box 2. An energy storage component 13 is fixedly mounted on the far right of the base 1. An outlet pipe 14 is fixedly mounted on the top of the inner side of the energy storage component 13. An electric furnace body 15 is fixedly mounted on the right side of the main control box 2. A heating component 16 is fixedly mounted inside the electric furnace body 15.

[0006] Preferably, there are six inlet pipes 5, and the inlet pipes 5 are installed on the left side of the rotating plate 4.

[0007] Preferably, the U-shaped annular block 8 is fixedly installed on the bottom right side of the base 1.

[0008] Preferably, there are two auxiliary hubs 9, which are movably connected to the left and right sides of the U-shaped block 8, and the auxiliary hubs 9 are in contact with the auxiliary wheel axle 10.

[0009] Preferably, the delivery pipe 12 is connected to the main control box to connect 2 to the energy storage component 13.

[0010] Preferably, the outlet pipe 14 is connected between the energy storage component 13 and the electric furnace body 15.

[0011] Preferably, the connection port of the electric furnace body 15 is provided with a rectangular groove, and the connection port of the outlet pipe 14 is fixedly connected inside the rectangular groove.

[0012] Compared with the prior art, the present invention has the following beneficial effects: 1. This utility model uses components such as a U-ring block, an auxiliary hub, and an auxiliary axle. The main control box controls the rotation of the rotating plate, and the auxiliary hub and auxiliary axle work together to make the filter box rotate. The rotation of the auxiliary hub and auxiliary axle can reduce friction on the filter box and ensure stable mechanical operation. The exhaust device can discharge excess gas inside the equipment to maintain balance.

[0013] 2. This utility model uses connecting pipes, inlet pipes, outlet pipes, and conveying pipes to form gas transmission channels. The conveying pipes connect the electric furnace body to other components to realize material input, output, and circulation. The filter box filters the fluid entering the equipment, removes impurities, and protects the equipment. The electric furnace body, together with the heating components, performs secondary processing on impurity materials and gases, converting them into non-toxic materials. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the front structure of this utility model; Figure 2 This is a side view of the present invention. Figure 3 This is a schematic diagram of the rear structure of this utility model.

[0015] In the diagram: 1. Base; 2. Main control box; 3. Connecting pipe; 4. Rotating plate; 5. Inlet pipe; 6. Snap-fit ​​block; 7. Filter box; 8. U-shaped block; 9. Auxiliary hub; 10. Auxiliary axle; 11. Exhaust device; 12. Conveying pipe; 13. Energy storage component; 14. Outlet pipe; 15. Electric furnace body; 16. Heating component. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figures 1-3A waste heat recovery and utilization device for calcium carbide production includes a base 1. A main control box 2 is fixedly installed at the upper center of the base 1, providing a foundation and stability. A connecting pipe 3 is fixedly connected to the middle left side of the main control box 2, controlling the operation of the equipment and setting parameters. A rotating plate 4 is movably connected to the middle of the connecting pipe 3 for the transmission of materials such as gas. An inlet pipe 5 is fixedly connected to the surface of the rotating plate 4. A snap-fit ​​block 6 is fixedly installed at the middle of the outer surface of the inlet pipe 5, which can rotate to adjust the angle and position of the components and serves as a channel for inputting materials, fluids, gases, etc. into the equipment, providing connection and fixation to ensure stable engagement between components and facilitate disassembly and positioning. The output end of the inlet pipe 5 is fixedly connected to a filter box 7. A U-shaped block 8 is fixedly installed at the lower center of the filter box 7. An auxiliary hub 9 is movably installed at the top inner side of the U-shaped block 8. An auxiliary axle 10 is fixedly installed at the middle of the outer surface of the filter box 7. The filter box 7 is fixedly equipped with an exhaust device 11, which filters the medium, removes impurities, supports components, forms a ring-shaped passage and structural connection, and the auxiliary hub 9 works with the auxiliary axle 10 to realize component rotation. The auxiliary axle 10 reduces friction, optimizes component movement or material transmission, and adjusts position. The rear bottom of the main control box 2 is fixedly connected to a conveying pipe 12 to discharge gas from the equipment, balance pressure, and discharge waste gas generated during reaction and operation to ensure normal internal operation. The rightmost side of the base 1 is fixedly equipped with an energy storage component 13, and the top of the inner side of the energy storage component 13 is fixedly equipped with an outlet pipe 14 to transport materials over long distances or along specific paths to ensure continuous supply. The right side of the main control box 2 is fixedly equipped with an electric furnace body 15 to provide a heating environment for material heating. The electric furnace body 15 is fixedly equipped with a heating component 16 inside to enhance the heating of special materials and improve heating efficiency.

[0018] The inlet pipes 5 are evenly installed on the left side of the rotating plate 4. The outer surface of the inlet pipes 5 is equipped with snap-fit ​​blocks 6, which have a snap-fit ​​function to fix and connect the components, making them stably snapped together and easy to disassemble and position.

[0019] The U-shaped block 8 is fixedly installed at the bottom of the filter box 7, providing stable support for the filter box 7 and ensuring stable operation of the equipment.

[0020] There are two auxiliary hubs 9, which are movably connected to the left and right sides of the U-shaped block 8. The auxiliary hubs 9 and the auxiliary wheel axle 10 are fixed to the same track wheel, and the simultaneous operation of the auxiliary hubs 9 and the auxiliary wheel axle 10 can reduce friction.

[0021] The conveying pipe 12 is connected to the bottom of the main control box 2 and the energy storage component 13 respectively. The conveying pipe 12 is connected to the energy storage component 13 and the main control box 2 respectively. The material impurities are discharged through the filter box 7, and the filtered material is recovered and reused through the conveying pipe 12.

[0022] The outlet pipe 14 is connected to the energy storage device 13 and the electric furnace body 15 respectively. The outlet pipe 14 is connected to the energy storage device 13 and the electric furnace body 15 respectively to realize the input of impurity materials into the electric furnace body 15, and output in conjunction with the heating component 16 for recycling.

[0023] The electric furnace body 15 has a rectangular groove at the connection port. The outlet pipe 14 is fixedly connected inside the rectangular groove. The outlet pipe 14 is fixedly snapped to prevent it from sliding and falling during transportation.

[0024] Working principle: Gas enters the filter box 7 through the exhaust device 11. A motor is installed inside the main control box 2. The main control box 2 controls the motor to drive the rotating plate 4 to rotate, which in turn drives the filter box 7 to rotate. The filter box 7 drives the auxiliary wheel axle 10 to rotate in conjunction with the auxiliary wheel hub 9. The auxiliary wheel axle 10 can also reduce friction on the filter box 7. The rotation inside the filter box 7 removes impurities from the gas and materials. The gas is then transported to the main control box 2 through the inlet pipe 5 and the connecting pipe. The main control box 2 controls the conveying pipe 12 to input the gas into the energy storage device 13. The energy storage device 13 filters the gas and materials to ensure cleanliness. After filtration, the gas and materials are transported to the electric furnace body 15 through the outlet pipe 14. The gas and materials entering the electric furnace body 15 are heated by the heating component 16 to melt the gas and materials.

Claims

1. A device for the cascade recovery and utilization of waste heat from calcium carbide production, comprising a base (1), characterized in that: A main control box (2) is fixedly installed at the upper center of the base (1). A connecting pipe (3) is fixedly connected to the middle left side of the main control box (2). A rotating plate (4) is movably connected to the middle of the connecting pipe (3). An inlet pipe (5) is fixedly connected to the surface of the rotating plate (4). A snap-fit ​​block (6) is fixedly installed at the middle of the outer surface of the inlet pipe (5). The output end of the inlet pipe (5) is fixedly connected to the filter box (7). A U-shaped block (8) is fixedly installed at the lower center of the filter box (7). A snap-fit ​​block (6) is movably installed at the top of the inner side of the U-shaped block (8). An auxiliary hub (9) is fixedly installed on the middle of the outer surface of the filter box (7). An exhaust device (11) is fixedly installed on the middle of the left end of the filter box (7). A conveying pipe (12) is fixedly connected to the bottom of the rear end of the main control box (2). An energy storage component (13) is fixedly installed on the far right of the base (1). An outlet pipe (14) is fixedly installed on the top of the inner side of the energy storage component (13). An electric furnace body (15) is fixedly installed on the right side of the main control box (2). A heating component (16) is fixedly installed inside the electric furnace body (15).

2. The waste heat recovery and utilization device for calcium carbide production according to claim 1, characterized in that: The number of inlet pipes (5) is six, and the inlet pipes (5) are installed on the left side of the rotating plate (4).

3. The waste heat recovery and utilization device for calcium carbide production according to claim 2, characterized in that: The U-shaped block (8) is fixedly installed on the bottom right side of the base (1).

4. The waste heat recovery and utilization device for calcium carbide production according to claim 3, characterized in that: There are two auxiliary hubs (9), which are movably connected to the left and right sides of the U-shaped block (8), and the auxiliary hubs (9) are in contact with the auxiliary wheel axle (10) of the rail wheel.

5. A waste heat recovery and utilization device for calcium carbide production according to claim 4, characterized in that: The delivery pipe (12) is connected to the main control box (2) and the energy storage device (13).

6. A device for the cascade recovery and utilization of waste heat from calcium carbide production according to claim 5, characterized in that: The outlet pipe (14) is connected between the energy storage device (13) and the electric furnace body (15).

7. A device for the cascade recovery and utilization of waste heat from calcium carbide production according to claim 6, characterized in that: The electric furnace body (15) has a rectangular groove at its connection port, and the outlet pipe (14) is fixedly connected inside the rectangular groove.

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