Device for improving yield of calcium carbide furnace

Abstract

The utility model discloses a device for improving the yield of a calcium carbide furnace, which comprises a rack, a heat exchange box arranged at the central position of the bottom of the rack, a calcium carbide furnace body arranged at the bottom of the rack on one side of the heat exchange box, a purification box arranged at the bottom of the rack on one side of the heat exchange box far away from the calcium carbide furnace body, and a high-temperature mixing tank arranged at the top end of the rack, a tank cover is installed at the top end of the high-temperature mixing tank, a motor is arranged in the center of the top end of the tank cover, one end of the motor extends into the high-temperature mixing tank and is provided with a stirring shaft, stirring blades are installed on the outer wall of the stirring shaft, heating blocks are arranged on the two sides of the bottom of the tank cover, and a discharging pipe opening is formed in the center of the bottom of the high-temperature mixing tank. A spiral conveyor is arranged at the upper end in the rack, and a feeding port is formed in one side of the top end of the spiral conveyor. According to the calcium carbide furnace, the yield of calcium carbide can be remarkably increased, the purpose of automatic feeding is achieved, and the purposes of recycling heat energy and purifying waste gas are achieved, so that the environment-friendly and energy-saving properties of the calcium carbide furnace in use are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of calcium carbide production equipment, in particular to a device for improving the output of a calcium carbide furnace. Background Art

[0002] A calcium carbide furnace is a special equipment used in industry to produce calcium carbide (calcium carbide). It uses the high temperature characteristics of the electric arc to cause a chemical reaction in the raw materials in the furnace, thereby generating the required calcium carbide products. As an important chemical raw material, calcium carbide is widely used in acetylene production, polyvinyl chloride (PVC) manufacturing and other fields. However, traditional calcium carbide furnaces have problems such as low thermal efficiency, uneven raw material mixing, and insufficient reaction during the production process, resulting in limited production. Therefore, it is of great significance to develop a new device that can effectively increase the output of calcium carbide furnaces and reduce energy consumption. Summary of the Invention

[0003] The purpose of this utility model is to provide a device for improving the output of calcium carbide furnaces, so as to solve the problem of low thermal efficiency, uneven mixing of raw materials, insufficient reaction and other problems in the production process of traditional calcium carbide furnaces raised in the above background technology, which leads to limited output.

[0004] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a device for improving the output of a calcium carbide furnace, comprising a frame, a heat exchange box is provided at the center position of the bottom of the frame, a calcium carbide furnace body is provided at the bottom of the frame on one side of the heat exchange box, a purification box is provided at the bottom of the frame on the side of the heat exchange box away from the calcium carbide furnace body, a high-temperature mixing tank is provided at the top of the frame, a tank cover is installed at the top of the high-temperature mixing tank, a motor is provided at the center position of the top of the tank cover, one end of the motor extends to the interior of the high-temperature mixing tank and is provided with a stirring shaft, stirring blades are installed on the outer wall of the stirring shaft, heating blocks are provided on both sides of the bottom of the tank cover, a discharge pipe is provided at the center position of the bottom of the high-temperature mixing tank, a screw conveyor is provided at the upper end inside the frame, a feed port is provided on one side of the top of the screw conveyor, a discharge port is provided on one side of the bottom of the screw conveyor, and a furnace port is provided at the top of the calcium carbide furnace body below the discharge port.

[0005] Preferably, two belt transmission mechanisms are provided on the outer wall of one side of the screw conveyor, and a rotating driving member is installed on the inner wall of the upper end of each belt transmission mechanism. The rotating driving member is provided to drive the belt transmission mechanism to operate.

[0006] Preferably, two spiral rollers are installed for rotation inside the screw conveyor, one end of the spiral roller is connected to the inner wall of the lower end of the belt transmission mechanism, and the spiral roller is arranged so that the raw materials inside the screw conveyor can be spirally conveyed to the right.

[0007] Preferably, a liquid injection port is provided at the center of the top of the heat exchange box, and a liquid discharge port is provided on the lower outer wall of one side of the heat exchange box. The liquid injection port and the liquid discharge port are arranged so that the heat exchange box can be injected and discharged.

[0008] Preferably, a serpentine heat exchange tube is provided inside the heat exchange box, and a first exhaust gas circulation pipe is provided at one end of the serpentine heat exchange tube. The end of the first exhaust gas circulation pipe away from the serpentine heat exchange tube is connected to the outer wall of the calcium carbide furnace body. The serpentine heat exchange tube is provided to increase the heat exchange area between the high-temperature exhaust gas and the water source inside the heat exchange box.

[0009] Preferably, a second exhaust gas circulation pipe is provided at one end of the serpentine heat exchange tube away from the first exhaust gas circulation pipe, and the end of the second exhaust gas circulation pipe away from the serpentine heat exchange tube is connected to the outer wall of the purification box, and an exhaust port is provided on the outer wall of the lower end of the purification box away from the second exhaust gas circulation pipe. The exhaust port is set so that the purified gas inside the purification box can be discharged through the exhaust port.

[0010] Compared with the prior art, the beneficial effects of the present invention are as follows: the device for increasing the output of a calcium carbide furnace can not only significantly increase the output of calcium carbide, but also achieve the purpose of automatic loading, and achieve the purpose of heat energy recovery and exhaust gas purification, thereby improving the environmental protection and energy saving of the calcium carbide furnace during use;

[0011] By injecting raw materials such as coke and limestone into the interior of the high-temperature mixing tank, the raw materials inside the high-temperature mixing tank can be preheated at high temperature due to the setting of the heating block, and the motor can drive the stirring blade to rotate at high speed through the stirring shaft to fully mix the various raw materials inside the high-temperature mixing tank. The mixed and preheated raw materials can be discharged through the discharge pipe and subsequently melted by the calcium carbide furnace body to generate calcium carbide, thereby significantly increasing the calcium carbide production;

[0012] The belt transmission mechanism is driven by a rotating driving member to operate, so that the belt transmission mechanism drives the spiral roller to rotate. When the preheated and mixed raw materials are discharged into the interior of the screw conveyor through the discharge pipe and the feed port, the two spiral rollers can convey the raw materials to the right side of the screw conveyor, and the raw materials are discharged into the calcium carbide furnace body through the discharge port and the furnace port for melting reaction, thereby achieving the purpose of automatic loading.

[0013] Water is injected into the heat exchange box through the liquid injection port. When the waste gas generated by the melting reaction of the calcium carbide raw material flows into the serpentine heat exchange tube through the first waste gas circulation pipe, the waste gas will circulate inside the serpentine heat exchange tube and then flow into the purification box through the second waste gas circulation pipe. At this time, the heat energy in the waste gas inside the serpentine heat exchange tube will be absorbed by the water source inside the heat exchange box, and the purification box purifies the waste gas and discharges it from the exhaust port, thereby achieving the purpose of heat energy recovery and waste gas purification, thereby improving the environmental protection and energy saving performance of the calcium carbide furnace during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the can cover of the utility model when viewed from above;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the screw conveyor of the utility model from a top view;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the heat exchange box of the present invention.

[0018] In the figure: 1. Frame; 2. High-temperature mixing tank; 3. Tank cover; 4. Motor; 5. Discharge pipe; 6. Screw conveyor; 7. Rotating drive member; 8. Belt drive mechanism; 9. Feed port; 10. Discharge port; 11. Calcium carbide furnace body; 12. Furnace mouth; 13. Heat exchange box; 1301. Liquid injection port; 1302. Liquid discharge port; 14. First exhaust gas circulation pipe; 15. Second exhaust gas circulation pipe; 16. Purification box; 1601. Exhaust port; 17. Stirring shaft; 18. Stirring blade; 19. Heating block; 20. Spiral roller; 21. Serpentine heat exchange tube. DETAILED DESCRIPTION

[0019] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0020] See also Figure 1-4 The present invention provides an embodiment of a device for improving the output of a calcium carbide furnace, comprising a frame 1, a heat exchange box 13 provided at the center of the bottom of the frame 1, a liquid injection port 1301 provided at the center of the top of the heat exchange box 13, and a liquid discharge port 1302 provided on the lower end outer wall of one side of the heat exchange box 13;

[0021] When in use, the heat exchange box 13 is provided with a liquid injection port 1301 and a liquid discharge port 1302 so as to perform liquid injection and liquid discharge processing;

[0022] A serpentine heat exchange tube 21 is provided inside the heat exchange box 13, and a first exhaust gas flow pipe 14 is provided at one end of the serpentine heat exchange tube 21. The end of the first exhaust gas flow pipe 14 away from the serpentine heat exchange tube 21 is connected to the outer wall of the calcium carbide furnace body 11;

[0023] When in use, the serpentine heat exchange tube 21 is provided to increase the heat exchange area between the high-temperature exhaust gas and the water source inside the heat exchange box 13;

[0024] A second exhaust gas flow pipe 15 is provided at one end of the serpentine heat exchange pipe 21 away from the first exhaust gas flow pipe 14. The second exhaust gas flow pipe 15 is connected to the outer wall of the purification box 16 at one end away from the serpentine heat exchange pipe 21. An exhaust port 1601 is provided on the outer wall of the lower end of the purification box 16 away from the second exhaust gas flow pipe 15.

[0025] When in use, the exhaust port 1601 is provided so that the purified gas inside the purification box 16 is discharged through the exhaust port 1601;

[0026] A calcium carbide furnace body 11 is provided at the bottom of the frame 1 on one side of the heat exchange box 13, a purification box 16 is provided at the bottom of the frame 1 on the side of the heat exchange box 13 away from the calcium carbide furnace body 11, a high-temperature mixing tank 2 is provided at the top of the frame 1, a tank cover 3 is installed on the top of the high-temperature mixing tank 2, a motor 4 is provided at the center of the top of the tank cover 3, one end of the motor 4 extends to the interior of the high-temperature mixing tank 2 and is provided with a stirring shaft 17, a stirring blade 18 is installed on the outer wall of the stirring shaft 17, heating blocks 19 are provided on both sides of the bottom of the tank cover 3, a discharge pipe port 5 is provided at the center of the bottom of the high-temperature mixing tank 2, a screw conveyor 6 is provided at the upper end of the interior of the frame 1, two belt drive mechanisms 8 are provided on the outer wall of one side of the screw conveyor 6, and a rotating drive member 7 is installed on the inner wall of the upper end of the belt drive mechanism 8;

[0027] When in use, the driving member 7 is rotated to drive the belt transmission mechanism 8 to operate;

[0028] Two spiral rollers 20 are rotatably installed inside the screw conveyor 6, and one end of the spiral roller 20 is connected to the inner wall of the lower end of the belt transmission mechanism 8;

[0029] When in use, the spiral roller 20 is arranged so as to spirally convey the raw materials inside the screw conveyor 6 to the right;

[0030] A feed port 9 is provided on one side of the top of the screw conveyor 6 , a discharge port 10 is provided on one side of the bottom of the screw conveyor 6 , and a furnace port 12 is provided on the top of the calcium carbide furnace body 11 below the discharge port 10 .

[0031] When the embodiment of the present application is in use, first, raw materials such as coke and limestone are injected into the interior of the high-temperature mixing tank 2. Due to the setting of the heating block 19, the raw materials inside the high-temperature mixing tank 2 can be preheated at high temperature, and the motor 4 can drive the stirring blade 18 to rotate at high speed through the stirring shaft 17 to fully mix the various raw materials inside the high-temperature mixing tank 2. Then, the calcium carbide raw materials can be efficiently melted by the calcium carbide furnace body 11 to generate calcium carbide, so as to significantly improve the calcium carbide production. Thereafter, the belt transmission mechanism 8 is driven to operate by the rotating driving member 7, so that the belt transmission mechanism 8 drives the spiral roller 20 to rotate. When the preheated mixed raw materials are discharged into the interior of the screw conveyor 6 through the discharge pipe 5 and the feed port 9, the raw materials can be transported to the two spiral rollers 20. The right side of the screw conveyor 6 allows the raw materials to be discharged from the discharge port 10 and the furnace port 12 into the calcium carbide furnace body 11 for melting reaction, and finally the water source is injected into the heat exchange box 13 through the liquid injection port 1301. When the waste gas generated by the melting reaction of the calcium carbide raw materials flows into the serpentine heat exchange tube 21 through the first waste gas circulation pipe 14, the waste gas will be located in the internal circulation of the serpentine heat exchange tube 21 and then flow into the purification box 16 through the second waste gas circulation pipe 15. At this time, the heat energy in the waste gas inside the serpentine heat exchange tube 21 will be absorbed by the water source inside the heat exchange box 13, and the water source inside the heat exchange box 13 can be discharged from the drain port 1302, and the waste gas can be discharged from the exhaust port 1601 after purification by the purification box 16, which can improve the environmental protection and energy saving performance of the calcium carbide furnace during operation, thereby completing the use of this device.

Claims

1. A device for increasing the output of a calcium carbide furnace, characterized in that: The invention comprises a frame (1), a heat exchange box (13) is provided at the center of the bottom of the frame (1), a calcium carbide furnace body (11) is provided at the bottom of the frame (1) on one side of the heat exchange box (13), a purification box (16) is provided at the bottom of the frame (1) on the side of the heat exchange box (13) away from the calcium carbide furnace body (11), a high-temperature mixing tank (2) is provided at the top of the frame (1), a tank cover (3) is installed at the top of the high-temperature mixing tank (2), a motor (4) is provided at the center of the top of the tank cover (3), and one end of the motor (4) extends to the top of the high-temperature mixing tank (2). A stirring shaft (17) is provided inside, and a stirring blade (18) is installed on the outer wall of the stirring shaft (17). Heating blocks (19) are provided on both sides of the bottom of the tank cover (3). A discharge pipe (5) is provided at the center of the bottom of the high-temperature mixing tank (2). A screw conveyor (6) is provided at the upper end of the frame (1). A feed port (9) is provided on one side of the top of the screw conveyor (6). A discharge port (10) is provided on one side of the bottom of the screw conveyor (6). A furnace port (12) is provided on the top of the calcium carbide furnace body (11) below the discharge port (10).

2. The device for increasing the output of a calcium carbide furnace according to claim 1, characterized in that: Two belt transmission mechanisms (8) are provided on the outer wall of one side of the screw conveyor (6), and a rotating driving member (7) is installed on the inner wall of the upper end of each belt transmission mechanism (8).

3. The device for increasing the output of a calcium carbide furnace according to claim 2, characterized in that: Two spiral rollers (20) are rotatably installed inside the spiral conveyor (6), and one end of the spiral roller (20) is connected to the inner wall of the lower end of the belt transmission mechanism (8).

4. The device for increasing the output of a calcium carbide furnace according to claim 1, characterized in that: A liquid injection port (1301) is provided at the center of the top of the heat exchange box (13), and a liquid discharge port (1302) is provided on the lower outer wall of one side of the heat exchange box (13).

5. The device for increasing the output of a calcium carbide furnace according to claim 1, characterized in that: A serpentine heat exchange tube (21) is provided inside the heat exchange box (13), a first exhaust gas flow tube (14) is provided at one end of the serpentine heat exchange tube (21), and an end of the first exhaust gas flow tube (14) away from the serpentine heat exchange tube (21) is connected to the outer wall of the calcium carbide furnace body (11).

6. The device for increasing the output of a calcium carbide furnace according to claim 5, characterized in that: A second exhaust gas flow pipe (15) is provided at one end of the serpentine heat exchange pipe (21) away from the first exhaust gas flow pipe (14); an end of the second exhaust gas flow pipe (15) away from the serpentine heat exchange pipe (21) is connected to the outer wall of the purification box (16); and an exhaust port (1601) is provided on the outer wall of the lower end of the purification box (16) away from the second exhaust gas flow pipe (15).

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