Reducing furnace waste heat utilization equipment

Abstract

This invention relates to the field of reduction furnace technology and discloses a waste heat utilization device for a reduction furnace, including a main body, a waste heat conversion mechanism, an adjustment mechanism, and a support mechanism. The waste heat conversion mechanism is movably connected to the lower end of the main body, the adjustment mechanism is fixedly connected to the lower end of the waste heat conversion mechanism, the support mechanism is fixedly connected to the lower end of the adjustment mechanism, and a fixed rubber sleeve is fixedly connected to the upper end of the waste heat absorption device. This waste heat utilization device for a reduction furnace boiler, through improvements and installation of the main body, enhances its waste heat utilization capacity. In actual use, the waste heat generated during the operation of the reduction furnace can be quickly and effectively utilized as needed, and the angle and position of the waste heat utilization device can be adjusted as required, improving the user experience of the waste heat utilization device for a reduction furnace boiler.

Description

Technical Field

[0001] This invention patent relates to the field of reduction furnace technology, specifically to a device for utilizing waste heat from a reduction furnace. Background Technology

[0002] The reduction furnace is the core equipment in magnesium production. Both domestically and internationally, the most common type is the externally heated horizontal reduction tank furnace. Traditional magnesium reduction furnaces generally employ a reheated reduction tank structure. In this traditional furnace structure, the flame and flue gas pass over the baffle wall into the furnace chamber, flow downwards through the reduction tank, and quickly exit the furnace chamber through the fire passage. The exhaust gas temperature can reach as high as approximately 1200℃, making effective recovery and utilization of energy difficult and resulting in significant energy waste. Waste heat recovery devices for reduction furnace boilers are a type of waste heat recovery equipment for reduction furnaces.

[0003] Existing patent document CN109250720A discloses a reduction furnace and a support portion. The support portion includes a chassis and electrodes. The chassis is connected to the furnace body, and the electrodes are disposed within the furnace body and connected to the chassis. A heating element is disposed within the furnace body and connected to the electrodes. The heating element is composed of at least the following components by weight percentage: 20-50%, 50-80%, with tungsten content at 25-35% and molybdenum content at 70-75%. The electrodes include a first electrode and a second electrode. The heating element includes a tube body, a first connecting end, and a second connecting end. The first connecting end and the second connecting end are respectively disposed at both ends of the tube body. The first connecting end is connected to the first electrode, and the second connecting end is connected to the second electrode. The first connecting end has a first connecting piece with a first connecting hole, and the second connecting end has a second connecting piece with a second connecting hole. The first electrode and the first connecting piece are connected... A first bolt is provided, and a second bolt is provided between the second electrode and the second connecting piece to fix the tube body. The diameter of the tube body is 40-60mm, and the thickness of the outer wall of the tube body is 2-3mm. The heating element is U-shaped and has an anti-oxidation coating. The anti-oxidation coating covers the surface of the tube body to prevent oxidation. The material of the anti-oxidation coating is silicon nitride coating. The furnace body provides a place for producing silicon rods. The function of the support part is to connect and support the heating element. The support part includes a chassis and an electrode. The chassis is connected to the furnace body, and the electrode is set in the furnace body and connected to the chassis. The function of the heating element is to provide a place for polycrystalline silicon to adhere. The heating element is set in the furnace body and connected to the electrode. The heating element is composed of at least the following components by weight percentage: tungsten: 20-50%, molybdenum: 50-80%. Compared with the prior art, silicon material is heated by a reduction furnace. Usually, a silicon core is set in the reduction furnace. The silicon core is broken down and heated by high pressure, so that the silicon core acts as a heating element for polycrystalline silicon growth. Polycrystalline silicon is deposited on the heated silicon core and gradually forms a silicon rod.However, since silicon cores must undergo high-voltage breakdown before use, the requirements for the electrodes and other electrical equipment in the reduction furnace are high. Furthermore, the small diameter of the silicon core and the long production cycle increase its cost. Simultaneously, the slow deposition rate of polycrystalline silicon in the early stages of silicon rod production further extends the reduction furnace's production cycle, increasing both energy consumption and production costs. In this embodiment of the invention, by replacing the heating element material from silicon with an alloy composed of tungsten and molybdenum, high-voltage breakdown of the heating element is eliminated in the early stages of silicon rod production. The heating element heats up quickly, allowing it to operate within a short timeframe. Reaching the required temperature for silicon rod growth within a short time not only reduces energy consumption in silicon rod production but also lowers the requirements for other electrical components in the reduction furnace, thus reducing the cost of silicon rod production equipment. Secondly, since the diameter of the tungsten and molybdenum alloy can be processed as needed, the silicon rod production process can skip the slow initial growth stage, thereby shortening the production time and improving production efficiency. Finally, the use of a tungsten and molybdenum alloy for the heating element allows for reuse, eliminating the need for graphite chucks and the costs associated with continuous silicon core production. This not only saves production costs but also reduces pollution from the entire production system.

[0004] However, in the existing technology CN109250720A patent, the waste heat utilization capacity of the reduction furnace is poor, which means that in the actual use of the reduction furnace, the waste heat generated during the use of the reduction furnace cannot be utilized quickly and effectively as needed, and the angle and position of the waste heat utilization device cannot be supported and adjusted as needed, which affects the user experience of the reduction furnace. Summary of the Invention

[0005] The purpose of this invention is to provide a waste heat utilization device for a reduction furnace, so as to solve the problem of poor waste heat utilization capacity of the reduction furnace mentioned in the background art.

[0006] To achieve the above objectives, this invention provides the following technical solution: a waste heat utilization device for a reduction furnace, comprising a main body, a waste heat conversion mechanism, an adjustment mechanism, and a support mechanism. The waste heat conversion mechanism is movably connected to the lower end of the main body, the adjustment mechanism is fixedly connected to the lower end of the waste heat conversion mechanism, and the support mechanism is fixedly connected to the lower end of the adjustment mechanism. The main body includes a waste heat absorption device, a fixed rubber sleeve, a waste heat absorption cylinder, a fixed plate, a connecting groove, and a connecting pipe. The fixed rubber sleeve is fixedly connected to the upper end of the waste heat absorption device, the waste heat absorption cylinder is fixedly connected inside the fixed rubber sleeve, the fixed plate is fixedly connected to the rear end of the waste heat absorption device, the connecting groove is fixedly connected to the rear end of the fixed plate, and the connecting pipe is fixedly connected to the rear end of the fixed plate.

[0007] Preferably, the waste heat conversion mechanism includes a waste heat conversion box, a liquid storage tank, a protective plate, a connection port, a power connection point, an induction plate, a connecting rod, a generator, a generator drive shaft, and a generator fan. The waste heat conversion box is movably connected to the lower end of the waste heat absorption device, the liquid storage tank is fixedly connected to the upper end of the waste heat conversion box, the protective plate is fixedly connected to the upper end of the liquid storage tank, and the connection port is fixedly connected to the upper end of the protective plate. Through improvements and installation of the main structure, the waste heat utilization capacity of the waste heat utilization device is improved. In the actual use of the waste heat utilization device, the waste heat generated during the use of the reduction furnace can be quickly and effectively utilized as needed, and the angle and position of the waste heat utilization device can be adjusted as needed, thus improving the user experience of the waste heat utilization device used in the reduction furnace boiler.

[0008] Preferably, the power supply connection is fixedly connected to the left end of the waste heat conversion box, and the induction plate is fixedly connected to the left end of the waste heat conversion box. The waste heat of the reduction furnace boiler is absorbed through the waste heat absorption cylinder, and then transmitted to the waste heat conversion box and the liquid storage tank through the connecting pipe. Then, by driving the rotation of the generator fan, the generator drive shaft starts to rotate, and then the generator generates electricity. Finally, the converted electricity is transferred out through the power supply connection and the induction plate.

[0009] Preferably, the connecting rod is fixedly connected inside the waste heat conversion box, and the generator is fixedly connected to the right end of the connecting rod. By improving and installing the generator, the waste heat utilization capacity of the waste heat utilization device is improved, thereby enhancing the working effect of the waste heat utilization device used in the reduction furnace boiler.

[0010] Preferably, the generator drive shaft is fixedly connected to the right end of the generator, and the generator fan is fixedly connected to the right end of the generator drive shaft. By improving and installing the generator fan, the waste heat utilization capacity of the waste heat utilization device is improved, thereby enhancing the working effect of the waste heat utilization device used in the reduction furnace boiler.

[0011] Preferably, the adjustment mechanism includes a mounting plate, a buffer rubber pad, a support column, a movable motor, a movable lead screw, a movable block, and a connecting block. The mounting plate is fixedly connected to the lower end of the waste heat conversion box, the buffer rubber pad is fixedly connected to the lower end of the mounting plate, and the support column is fixedly connected to the upper end of the mounting plate. The waste heat utilization device for the reduction furnace boiler is moved to a suitable working position via the installed casters. Then, by controlling the extension and retraction of the electric push rod and the push rod, the counterweight and support base are adjusted to a suitable horizontal angle. The mounting plate and buffer rubber pad are then fixedly installed via the installed counterweight and support base. Finally, by activating the movable motor, the movable lead screw begins to rotate, causing the movable block and connecting block to move, thus moving the waste heat absorption device and the fixed rubber sleeve to a suitable position.

[0012] Preferably, the movable motor is fixedly connected to the upper end of the support column, and the movable lead screw is fixedly connected to the lower end of the movable motor. By improving and installing the movable motor, the movable adjustment capability of the waste heat utilization device is improved, thereby enhancing the working effect of the waste heat utilization device used in the reduction furnace boiler.

[0013] Preferably, the movable block is movably connected to the front end of the movable screw, and the connecting block is fixedly connected to the front end of the movable block. By improving and installing the connecting block, the movable adjustment capability of the waste heat utilization device is improved, thereby enhancing the working effect of the waste heat utilization device used in the reduction furnace boiler.

[0014] Preferably, the support mechanism includes a counterweight, a support base, an electric push rod, a push rod, and casters. The counterweight is fixedly connected to the lower end of the mounting plate, and the support base is fixedly connected to the lower end of the counterweight. The casters are used to move the waste heat utilization device for the reduction furnace boiler to a suitable working position. Then, by controlling the extension and retraction of the electric push rod and the push rod, the counterweight and support base are adjusted to a suitable horizontal angle. The mounting plate and the buffer rubber pad are then fixedly installed using the counterweight and support base. Finally, by turning on the movable motor, the movable screw is rotated, which moves the movable block and the connecting block, moving the waste heat absorption device and the fixed rubber sleeve to a suitable position.

[0015] Preferably, the electric push rod is fixedly connected to the lower end of the support base, the push rod is fixedly connected to the lower end of the electric push rod, and the caster wheel is fixedly connected to the lower end of the push rod. By improving and installing the caster wheel, the mobility of the waste heat utilization device is improved, thereby enhancing the working effect of the waste heat utilization device used in the reduction furnace boiler.

[0016] Compared with the prior art, the beneficial effects of this invention patent are:

[0017] 1. The waste heat utilization device for reduction furnace boiler improves the waste heat utilization capacity through the improvement and installation of the main structure. In the actual use of the waste heat utilization device, the waste heat generated during the use of the reduction furnace can be utilized quickly and effectively as needed. The angle and position of the waste heat utilization device can be adjusted as needed, which improves the user experience of the waste heat utilization device for reduction furnace boiler.

[0018] 2. The waste heat utilization device for the reduction furnace boiler absorbs the waste heat of the reduction furnace boiler through the waste heat absorption cylinder, and then transmits it to the waste heat conversion box and the liquid storage tank through the connecting pipe. Then, by driving the rotation of the generator fan, the generator drive shaft starts to rotate, and then generates electricity through the generator. Finally, the converted electricity is transferred out through the power connection and the induction plate.

[0019] 3. The waste heat utilization device for the reduction furnace boiler is moved to a suitable working position by the installed casters. Then, by controlling the extension and retraction of the electric push rod and the push rod, the counterweight and the support base are adjusted to a suitable horizontal angle. The mounting plate and the buffer rubber pad are then fixedly installed by the installed counterweight and the support base. Finally, by turning on the movable motor, the movable screw starts to rotate, which moves the movable block and the connecting block, moving the waste heat absorption device and the fixed rubber sleeve to a suitable position. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention.

[0021] Figure 2 This is a schematic diagram of the main structure in an embodiment of the present invention.

[0022] Figure 3 This is a schematic diagram of the waste heat conversion mechanism in an embodiment of the present invention. Figure 1 .

[0023] Figure 4 This is a schematic diagram of the waste heat conversion mechanism in an embodiment of the present invention. Figure 2 .

[0024] Figure 5 This is a schematic diagram of the adjustment mechanism in an embodiment of the present invention.

[0025] Figure 6 This is a schematic diagram of the support mechanism in an embodiment of the present invention.

[0026] In the diagram: 1. Main structure; 101. Waste heat absorption device; 102. Fixed rubber sleeve; 103. Waste heat absorption cylinder; 104. Fixed plate; 105. Connecting groove; 106. Connecting pipe; 2. Waste heat conversion mechanism; 201. Waste heat conversion box; 202. Liquid storage cylinder; 203. Protective plate; 204. Connection port; 205. Power connection point; 206. Induction plate; 207. Connecting rod; 208. Generator; 209. Generator drive shaft; 210. Generator fan; 3. Adjustment mechanism; 301. Mounting plate; 302. Buffer rubber pad; 303. Support column; 304. Movable motor; 305. Movable lead screw; 306. Movable block; 307. Connecting block; 4. Support mechanism; 401. Counterweight block; 402. Support base; 403. Electric push rod one; 404. Push rod one; 405. Caster wheel. Detailed Implementation

[0027] The technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this invention, and not all of them. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0028] Please see Figure 1 - Figure 6 This invention patent provides a technical solution: a waste heat utilization device for a reduction furnace, comprising a main body 1, a waste heat conversion mechanism 2, an adjustment mechanism 3, and a support mechanism 4. The waste heat conversion mechanism 2 is movably connected to the lower end of the main body 1, the adjustment mechanism 3 is fixedly connected to the lower end of the waste heat conversion mechanism 2, and the support mechanism 4 is fixedly connected to the lower end of the adjustment mechanism 3. The main body 1 includes a waste heat absorption device 101, a fixed rubber sleeve 102, a waste heat absorption cylinder 103, a fixed plate 104, a connecting groove 105, and a connecting pipe 106. The fixed rubber sleeve 102 is fixedly connected to the upper end of the waste heat absorption device 101, the waste heat absorption cylinder 103 is fixedly connected inside the fixed rubber sleeve 102, the fixed plate 104 is fixedly connected to the rear end of the waste heat absorption device 101, the connecting groove 105 is fixedly connected to the rear end of the fixed plate 104, and the connecting pipe 106 is fixedly connected to the rear end of the fixed plate 104.

[0029] The waste heat conversion mechanism 2 includes a waste heat conversion box 201, a liquid storage tank 202, a protective plate 203, a connection port 204, a power connection 205, an induction plate 206, a connecting rod 207, a generator 208, a generator drive shaft 209, and a generator fan 210. The waste heat conversion box 201 is movably connected to the lower end of the waste heat absorption device 101. The liquid storage tank 202 is fixedly connected to the upper end of the waste heat conversion box 201. The protective plate 203 is fixedly connected to the upper end of the liquid storage tank 202. The connection port 204 is fixedly connected to the upper end of the protective plate 203. The power connection 205 is fixedly connected to the left end of the waste heat conversion box 201. The induction plate 206 is fixedly connected to the waste heat conversion box 201. At the left end, the connecting rod 207 is fixedly connected to the inside of the waste heat conversion box 201, the generator 208 is fixedly connected to the right end of the connecting rod 207, the generator drive shaft 209 is fixedly connected to the right end of the generator 208, and the generator fan 210 is fixedly connected to the right end of the generator drive shaft 209. The waste heat of the reduction furnace boiler is absorbed through the waste heat absorption cylinder 103, and then transmitted to the waste heat conversion box 201 and the liquid storage cylinder 202 through the connecting pipe 106. Then, by driving the generator fan 210 to rotate, the generator drive shaft 209 starts to rotate, and then the generator 208 generates electricity. Then, the converted electricity is output through the power connection 205 and the induction plate 206.

[0030] The adjustment mechanism 3 includes a mounting plate 301, a buffer rubber pad 302, a support column 303, a movable motor 304, a movable lead screw 305, a movable block 306, and a connecting block 307. The mounting plate 301 is fixedly connected to the lower end of the waste heat conversion box 201, the buffer rubber pad 302 is fixedly connected to the lower end of the mounting plate 301, the support column 303 is fixedly connected to the upper end of the mounting plate 301, the movable motor 304 is fixedly connected to the upper end of the support column 303, the movable lead screw 305 is fixedly connected to the lower end of the movable motor 304, the movable block 306 is movably connected to the front end of the movable lead screw 305, and the connecting block 307 is fixedly connected to the front end of the movable block 306. The support mechanism 4 includes a counterweight 401, a support base 402, an electric push rod 403, a push rod 404, and a caster wheel 405. The counterweight 401 is fixedly connected to the lower end of the mounting plate 301, and the support base 402 is fixedly connected to the lower end of the mounting plate 301. Connected to the lower end of the counterweight 401, an electric push rod 403 is fixedly connected to the lower end of the support base 402, a push rod 404 is fixedly connected to the lower end of the electric push rod 403, and a movable caster 405 is fixedly connected to the lower end of the push rod 404. By installing the movable caster 405, the waste heat utilization device for the reduction furnace boiler is moved to a suitable working position. Then, by controlling the extension and retraction of the electric push rod 403 and the push rod 404, the counterweight 401 and the support base 402 are adjusted to a suitable horizontal angle. Then, by installing the counterweight 401 and the support base 402, the mounting plate 301 and the buffer rubber pad 302 are fixedly installed. Then, by opening the movable motor 304, the movable screw 305 is driven to start rotating, which drives the movable block 306 and the connecting block 307 to move, moving the waste heat absorption device 101 and the fixed rubber sleeve 102 to a suitable position.

[0031] Working principle: First, the waste heat utilization device for the reduction furnace boiler is moved to a suitable working position using the installed casters 405. Then, by controlling the extension and retraction of the electric push rod 403 and push rod 404, the counterweight 401 and support base 402 are adjusted to a suitable horizontal angle. Next, the mounting plate 301 and buffer rubber pad 302 are fixedly installed using the installed counterweight 401 and support base 402. Finally, the activation of the movable motor 304 drives the movable lead screw 305 to rotate, thus... The movable block 306 and the connecting block 307 move to move the waste heat absorption device 101 and the fixed rubber sleeve 102 to a suitable position. Then, the waste heat of the reduction furnace boiler is absorbed through the waste heat absorption cylinder 103 and then transmitted to the waste heat conversion box 201 and the liquid storage tank 202 through the connecting pipe 106. Then, by driving the rotation of the generator fan 210, the generator drive shaft 209 starts to rotate and generates electricity through the generator 208. Then, the converted electricity is output through the power connection 205 and the induction plate 206.

[0032] Finally, it should be noted that the above content is only used to illustrate the technical solution of this invention patent, and is not intended to limit the scope of protection of this invention patent. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this invention patent do not depart from the substance and scope of this invention patent technical solution.

Claims

1. A waste heat utilization device for a reduction furnace, comprising a main body (1), a waste heat conversion mechanism (2), an adjustment mechanism (3), and a support mechanism (4), characterized in that: The waste heat conversion mechanism (2) is movably connected to the lower end of the main body mechanism (1), the adjustment mechanism (3) is fixedly connected to the lower end of the waste heat conversion mechanism (2), the support mechanism (4) is fixedly connected to the lower end of the adjustment mechanism (3), the main body mechanism (1) includes a waste heat absorption device (101), a fixed rubber sleeve (102), a waste heat absorption cylinder (103), a fixed plate (104), a connecting groove (105) and a connecting pipe (106), the fixed rubber sleeve (102) is fixedly connected to the upper end of the waste heat absorption device (101), the waste heat absorption cylinder (103) is fixedly connected to the inside of the fixed rubber sleeve (102), the fixed plate (104) is fixedly connected to the rear end of the waste heat absorption device (101), the connecting groove (105) is fixedly connected to the rear end of the fixed plate (104), and the connecting pipe (106) is fixedly connected to the rear end of the fixed plate (104); The waste heat conversion mechanism (2) includes a waste heat conversion box (201), a liquid storage tank (202), a protective plate (203), a connection port (204), a power connection point (205), an induction plate (206), a connecting rod (207), a generator (208), a power generation drive shaft (209), and a power generation fan (210). The waste heat conversion box (201) is movably connected to the lower end of the waste heat absorption device (101). The liquid storage tank (202) is fixedly connected to the upper end of the waste heat conversion box (201). The protective plate (203) is fixedly connected to the upper end of the liquid storage tank (202). The connection port (204) is fixedly connected to the upper end of the protective plate (203). The power connection (205) is fixedly connected to the left end of the waste heat conversion box (201), and the induction plate (206) is fixedly connected to the left end of the waste heat conversion box (201). The adjustment mechanism (3) includes a mounting plate (301), a buffer rubber pad (302), a support column (303), a movable motor (304), a movable lead screw (305), a movable block (306), and a connecting block (307). The mounting plate (301) is fixedly connected to the lower end of the waste heat conversion box (201), the buffer rubber pad (302) is fixedly connected to the lower end of the mounting plate (301), and the support column (303) is fixedly connected to the upper end of the mounting plate (301). The movable motor (304) is fixedly connected to the upper end of the support column (303), and the movable lead screw (305) is fixedly connected to the lower end of the movable motor (304); The movable block (306) is movably connected to the front end of the movable lead screw (305), and the connecting block (307) is fixedly connected to the front end of the movable block (306).

2. The waste heat utilization equipment for a reduction furnace according to claim 1, characterized in that: The connecting rod (207) is fixedly connected inside the waste heat conversion box (201), and the generator (208) is fixedly connected to the right end of the connecting rod (207).

3. The waste heat utilization equipment for a reduction furnace according to claim 2, characterized in that: The power generation drive shaft (209) is fixedly connected to the right end of the generator (208), and the power generation fan (210) is fixedly connected to the right end of the power generation drive shaft (209).

4. The waste heat utilization equipment for a reduction furnace according to claim 1, characterized in that: The support mechanism (4) includes a counterweight (401), a support base (402), an electric push rod (403), a push rod (404), and a swivel wheel (405). The counterweight (401) is fixedly connected to the lower end of the mounting plate (301), and the support base (402) is fixedly connected to the lower end of the counterweight (401).

5. The waste heat utilization equipment for a reduction furnace according to claim 4, characterized in that: The electric push rod (403) is fixedly connected to the lower end of the support base (402), the push rod (404) is fixedly connected to the lower end of the electric push rod (403), and the omnidirectional wheel (405) is fixedly connected to the lower end of the push rod (404).

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