Heat preservation device for chassis gas circuit of large reduction furnace

Abstract

The utility model relates to the technical field of reduction furnace base plates, and discloses a heat preservation device of a large reduction furnace base plate gas circuit, which comprises a reduction furnace plate cylinder, a supporting base, a heat insulation coating, a fixing ring, a smooth heat insulation wall, a connecting conveying pipe and a liquid supplementing pipe. The supporting base is fixedly connected to the lower end of the reduction furnace plate cylinder, the heat insulation coating is fixedly connected to the left end of the supporting base, the fixing ring is fixedly connected to the upper end of the reduction furnace plate cylinder, and the smooth heat insulation wall is fixedly connected to the interior of the reduction furnace plate cylinder. According to the heat preservation device for the chassis gas circuit of the large reduction furnace, the heat preservation and heat insulation capacity of the gas circuit heat preservation device is improved by improving the gas circuit heat preservation device, in the actual use process of the gas circuit heat preservation device, effective heat preservation and heat insulation can be conducted on the chassis gas circuit of the reduction furnace according to needs, and the chassis gas circuit of the reduction furnace is convenient to use; and the use experience of the heat preservation device for the chassis gas circuit of the large reduction furnace is improved.

Description

Technical Field

[0001] This utility model relates to the field of reduction furnace chassis technology, specifically a heat preservation device for the gas path of a large reduction furnace chassis. Background Technology

[0002] The reduction furnace chassis is the core equipment in polysilicon production that produces the final product. It is also a key component that determines the system's capacity and energy consumption. With the impact of the global economic crisis, the price of polysilicon has continued to decline, and industry profits have been continuously squeezed.

[0003] Existing patent document CN208218416U discloses a reduction furnace, including a furnace body, electrodes, and a heat-insulating coating. The heat-insulating coating is disposed at a certain distance. The compensator is annular and fixedly connected to a second base plate. The compensator is sleeved on the electrode, and there is a gap between the compensator and the electrode. The heat-insulating coating is disposed in the gap. The heat-insulating coating is made of quartz sand. When the electrode is consumed, the distance increases, and the quartz sand in the gap fills the gap under gravity. The furnace body includes a first base plate and a furnace hood, and the first base plate is detachably connected to the furnace. The furnace hood has a vacuum jacket and includes a controller connected to the temperature sensor and the heater. The controller has a preset range and also includes a timer and an indicator. The timer is connected to the temperature sensor and the indicator. When the furnace temperature reaches the preset range, the timer starts timing; when the timer reaches a predetermined time, the indicator activates. The inner wall of the furnace is coated with a high-temperature resistant coating. The furnace body includes a first base plate, and the electrodes are fixed to the first base plate. The heat-insulating coating is applied to the first base plate and covers the electrodes. In the prior art, electrodes are used in reduction furnaces; some electrodes are used to connect to the heater, and others are used to guide the stretching of silicon rods. During operation, there is a significant temperature difference between the two sides of the base plate where the electrodes are fixed, causing heat loss from the base plate. The greater the temperature difference, the higher the heat loss, thus increasing energy consumption and production costs. This invention features a heat-insulating coating on the first base plate. On the one hand, this increases the thickness of the gap between the reaction chamber and the outside world. On the other hand, by selecting the material of the heat-insulating coating, the thermal conductivity of the heat-insulating coating can be reduced, thereby significantly reducing the heat transfer rate and achieving a heat preservation effect. This reduces heat loss and effectively lowers operating costs.

[0004] However, in the existing technology CN208218416U patent, the heat insulation capacity of the reduction furnace is poor, which makes it impossible to effectively insulate the gas passage of the reduction furnace chassis as needed during the actual use of the reduction furnace. This makes it inconvenient to use the gas passage of the reduction furnace chassis and affects the user experience of the gas passage of the reduction furnace chassis. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to provide a heat preservation device for the gas path of a large reduction furnace chassis, so as to solve the problem of poor heat preservation and insulation of the reduction furnace mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: a heat preservation device for the gas path of a large reduction furnace chassis, comprising a reduction furnace cylinder, a support base, a heat insulation coating, a fixing ring, a smooth heat insulation wall, a connecting conveying pipe, a fixing groove, a replenishing pipe, a carbon fiber layer, a polyamide fiber layer, a nanofiber layer, a polypropylene fiber layer, a thermoplastic elastic layer, a high-elasticity fiber layer, a silver fiber layer, a metal fiber layer, a graphene layer, a spandex layer, a polytetrafluoroethylene layer, and a fiber wall layer. The support base is fixedly connected to the lower end of the reduction furnace cylinder, the heat insulation coating is fixedly connected to the left end of the support base, the fixing ring is fixedly connected to the upper end of the reduction furnace cylinder, the smooth heat insulation wall is fixedly connected to the inside of the reduction furnace cylinder, the connecting conveying pipe is fixedly connected to the left end of the reduction furnace cylinder, the fixing groove is fixedly disposed at the left end of the connecting conveying pipe, and the replenishing pipe is fixedly connected to the left end of the connecting conveying pipe.

[0009] Preferably, the carbon fiber layer is fixedly connected to the lower end of the heat insulation coating, and the polyamide fiber layer is fixedly connected to the lower end of the carbon fiber layer. By improving the gas path insulation device, the heat insulation capacity of the gas path insulation device is improved. In the actual use of the gas path insulation device, the gas path of the reduction furnace chassis can be effectively insulated as needed, which facilitates the use of the gas path of the reduction furnace chassis and improves the user experience of the insulation device for the gas path of the large reduction furnace chassis.

[0010] Preferably, the nanofiber layer is fixedly connected to the lower end of the polyamide fiber layer, and the polypropylene fiber layer is fixedly connected to the lower end of the nanofiber layer. The installation of the reduction furnace drum and the support base facilitates the installation and use of the heat insulation device for the gas circuit of the large reduction furnace chassis. Then, the heat insulation coating facilitates the heat insulation of the chassis gas circuit.

[0011] Preferably, the thermoplastic elastic layer is fixedly connected to the lower end of the polypropylene fiber layer, and the high elastic fiber layer is fixedly connected to the lower end of the thermoplastic elastic layer. The installation of the fixing ring and the smooth heat insulation wall improves the heat preservation capacity of the heat preservation device of the gas circuit of the large reduction furnace chassis. Then, the installation of the connecting conveying pipe, the fixing groove and the liquid replenishment pipe facilitates the water inlet of the heat preservation device of the gas circuit of the large reduction furnace chassis.

[0012] Preferably, the silver fiber layer is fixedly connected to the inside of the reduction furnace drum, and the metal fiber layer is fixedly connected to the inside of the silver fiber layer. The installation of the carbon fiber layer, polyamide fiber layer, and nanofiber layer improves the heat insulation effect of the heat insulation coating. Then, the installation of the polypropylene fiber layer, thermoplastic elastic layer, and high elastic fiber layer improves the protective ability of the heat insulation coating.

[0013] Preferably, the graphene layer is fixedly connected inside the metal fiber layer, and the spandex layer is fixedly connected inside the graphene layer. The installation of the silver fiber layer, metal fiber layer, and graphene layer improves the protection capability of the reduction furnace drum.

[0014] Preferably, the polytetrafluoroethylene layer is fixedly connected to the inside of the spandex layer, and the fiber wall layer is fixedly connected to the inside of the polytetrafluoroethylene layer. By using the spandex layer, the polytetrafluoroethylene layer, and the fiber wall layer, the heat preservation effect of the heat preservation device of the gas circuit of the large reduction furnace chassis is improved.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The insulation device for the gas path of the large reduction furnace chassis has improved its heat insulation capacity through improvements to the gas path insulation device. In actual use, the gas path of the reduction furnace chassis can be effectively insulated as needed, which facilitates the use of the gas path of the reduction furnace chassis and improves the user experience of the insulation device for the gas path of the large reduction furnace chassis.

[0017] 2. The insulation device for the gas circuit of the large reduction furnace chassis facilitates the installation and use of the insulation device through the installed reduction furnace disc and support base. Then, the heat insulation coating facilitates the insulation of the chassis gas circuit. Furthermore, the installation of the fixing ring and smooth heat insulation wall improves the insulation capacity of the insulation device for the gas circuit of the large reduction furnace chassis. Finally, the installation of the connecting conveying pipe, fixing groove and liquid replenishment pipe facilitates the water inlet of the insulation device for the gas circuit of the large reduction furnace chassis.

[0018] 3. The insulation device for the gas path of the large reduction furnace chassis improves the insulation effect of the heat insulation coating by installing carbon fiber layer, polyamide fiber layer and nanofiber layer, then improves the protective ability of the heat insulation coating by installing polypropylene fiber layer, thermoplastic elastic layer and high elastic fiber layer, then improves the protective ability of the reduction furnace cylinder by installing silver fiber layer, metal fiber layer and graphene layer, and finally improves the insulation effect of the insulation device for the gas path of the large reduction furnace chassis by using spandex layer, polytetrafluoroethylene layer and fiber wall layer. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a schematic diagram of the connecting conveying pipe structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the heat insulation coating structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the reduction furnace drum structure of this utility model.

[0023] In the diagram: 1. Reduction furnace drum; 2. Support base; 3. Heat insulation coating; 4. Fixing ring; 5. Smooth heat insulation wall; 6. Connecting conveying pipe; 7. Fixing groove; 8. Liquid replenishment pipe; 9. Carbon fiber layer; 10. Polyamide fiber layer; 11. Nanofiber layer; 12. Polypropylene fiber layer; 13. Thermoplastic elastic layer; 14. High elastic fiber layer; 15. Silver fiber layer; 16. Metal fiber layer; 17. Graphene layer; 18. Spandex layer; 19. Polytetrafluoroethylene layer; 20. Fiber wall layer. Detailed Implementation

[0024] 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.

[0025] Please see Figures 1-4 This utility model provides a technical solution: a heat preservation device for the gas path of a large reduction furnace chassis, comprising a reduction furnace cylinder 1, a support base 2, a heat insulation coating 3, a fixing ring 4, a smooth heat insulation wall 5, a connecting conveying pipe 6, a fixing groove 7, a liquid replenishment pipe 8, a carbon fiber layer 9, a polyamide fiber layer 10, a nanofiber layer 11, a polypropylene fiber layer 12, a thermoplastic elastic layer 13, a high-elasticity fiber layer 14, a silver fiber layer 15, a metal fiber layer 16, and graphite. The reducing furnace consists of an olefin layer 17, a spandex layer 18, a polytetrafluoroethylene layer 19, and a fiber wall layer 20. A support base 2 is fixedly connected to the lower end of the reducing furnace drum 1. A heat insulation coating 3 is fixedly connected to the left end of the support base 2. A fixing ring 4 is fixedly connected to the upper end of the reducing furnace drum 1. A smooth heat insulation wall 5 is fixedly connected to the inside of the reducing furnace drum 1. A connecting conveying pipe 6 is fixedly connected to the left end of the reducing furnace drum 1. A fixing groove 7 is fixedly set at the left end of the connecting conveying pipe 6. A replenishing pipe 8 is fixedly connected to the left end of the connecting conveying pipe 6.

[0026] Carbon fiber layer 9 is fixedly connected to the lower end of heat insulation coating 3, polyamide fiber layer 10 is fixedly connected to the lower end of carbon fiber layer 9, nanofiber layer 11 is fixedly connected to the lower end of polyamide fiber layer 10, polypropylene fiber layer 12 is fixedly connected to the lower end of nanofiber layer 11, thermoplastic elastic layer 13 is fixedly connected to the lower end of polypropylene fiber layer 12, and high elastic fiber layer 14 is fixedly connected to the lower end of thermoplastic elastic layer 13. The installation of reduction furnace cylinder 1 and support base 2 facilitates the installation and use of the heat insulation device for the gas circuit of the large reduction furnace chassis. Then, the heat insulation coating 3 facilitates the heat insulation of the chassis gas circuit. The installation of fixing ring 4 and smooth heat insulation wall 5 improves the heat insulation capacity of the heat insulation device for the gas circuit of the large reduction furnace chassis. Finally, the installation of connecting conveying pipe 6, fixing groove 7, and liquid replenishment pipe 8 facilitates the water inlet of the heat insulation device for the gas circuit of the large reduction furnace chassis.

[0027] Silver fiber layer 15 is fixedly connected to the inside of reduction furnace drum 1, metal fiber layer 16 is fixedly connected to the inside of silver fiber layer 15, graphene layer 17 is fixedly connected to the inside of metal fiber layer 16, spandex layer 18 is fixedly connected to the inside of graphene layer 17, polytetrafluoroethylene layer 19 is fixedly connected to the inside of spandex layer 18, and fiber wall layer 20 is fixedly connected to the inside of polytetrafluoroethylene layer 19. The installation of carbon fiber layer 9, polyamide fiber layer 10, and nanofiber layer 11 improves the heat insulation effect of heat insulation coating 3. Then, the installation of polypropylene fiber layer 12, thermoplastic elastic layer 13, and high elastic fiber layer 14 improves the protective ability of heat insulation coating 3. Then, the installation of silver fiber layer 15, metal fiber layer 16, and graphene layer 17 improves the protective ability of reduction furnace drum 1. Finally, the use of spandex layer 18, polytetrafluoroethylene layer 19, and fiber wall layer 20 improves the heat insulation effect of the heat insulation device of the gas circuit of large reduction furnace chassis.

[0028] Working principle: The installation of the reduction furnace drum 1 and support base 2 facilitates the installation and use of the insulation device for the gas circuit of the large reduction furnace chassis. Then, the heat insulation coating 3 further enhances the insulation of the chassis gas circuit. The installation of the fixing ring 4 and smooth heat insulation wall 5 improves the insulation capacity of the insulation device for the gas circuit of the large reduction furnace chassis. The installation of the connecting conveying pipe 6, fixing groove 7, and liquid replenishment pipe 8 facilitates the water inlet of the insulation device for the gas circuit of the large reduction furnace chassis. Finally, the carbon fiber layer 9 and polyamide fiber layer 1... The installation of nanofiber layer 11 improves the heat insulation effect of heat insulation coating 3. Then, the installation of polypropylene fiber layer 12, thermoplastic elastic layer 13, and high elastic fiber layer 14 improves the protective ability of heat insulation coating 3. Then, the installation of silver fiber layer 15, metal fiber layer 16, and graphene layer 17 improves the protective ability of reduction furnace cylinder 1. Finally, the use of spandex layer 18, polytetrafluoroethylene layer 19, and fiber wall layer 20 improves the heat insulation effect of the heat insulation device of the gas passage of large reduction furnace chassis.

[0029] Finally, it should be noted that the above content is only used to illustrate the technical solution of this utility model, and is not intended to limit the scope of protection of this utility model. Simple modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model do not depart from the essence and scope of the technical solution of this utility model.

Claims

1. A heat preservation device for a large-scale reduction furnace bottom disc gas path, comprising a reduction furnace disc cylinder (1), a supporting base (2), a heat insulation coating (3), a fixing ring (4), a smooth heat insulation wall (5), a connecting conveying pipe (6), a fixing groove (7), a liquid supplementing pipe (8), a carbon fiber layer (9), a polyamide fiber layer (10), a nanofiber layer (11), a polypropylene fiber layer (12), a thermoplastic elastic layer (13), a high-elasticity fiber layer (14), a silver fiber layer (15), a metal fiber layer (16), a graphene layer (17), a spandex layer (18), a polytetrafluoroethylene layer (19), and a fiber wall layer (20), characterized in that: The support base (2) is fixedly connected to the lower end of the reduction furnace cylinder (1), the heat insulation coating (3) is fixedly connected to the left end of the support base (2), and the fixed ring (4) is fixedly connected to the upper end of the reduction furnace cylinder (1). The smooth heat insulation wall (5) is fixedly connected to the inside of the reduction furnace cylinder (1), the connecting conveying pipe (6) is fixedly connected to the left end of the reduction furnace cylinder (1), the fixed groove (7) is fixedly arranged at the left end of the connecting conveying pipe (6), and the liquid supplementing pipe (8) is fixedly connected to the left end of the connecting conveying pipe (6).

2. The heat preservation device for the gas path of the large reduction furnace bottom disc according to claim 1, characterized in that: The carbon fiber layer (9) is fixedly connected to the lower end of the heat insulation coating (3), and the polyamide fiber layer (10) is fixedly connected to the lower end of the carbon fiber layer (9).

3. The heat preservation device of a large-scale reduction furnace bottom plate air path according to claim 2, characterized in that: The nanofiber layer (11) is fixedly connected to the lower end of the polyamide fiber layer (10), and the polypropylene fiber layer (12) is fixedly connected to the lower end of the nanofiber layer (11).

4. The heat preservation device of a large-scale reduction furnace bottom plate air path according to claim 3, characterized in that: The thermoplastic elastic layer (13) is fixedly connected to the lower end of the polypropylene fiber layer (12), and the high-elasticity fiber layer (14) is fixedly connected to the lower end of the thermoplastic elastic layer (13).

5. A heat preservation device for a large-scale reduction furnace bottom gas path according to claim 4, characterized in that: The silver fiber layer (15) is fixedly connected to the inside of the reduction furnace cylinder (1), and the metal fiber layer (16) is fixedly connected to the inside of the silver fiber layer (15).

6. A heat preservation device for a large-scale reduction furnace bottom gas path according to claim 5, characterized in that: The graphene layer (17) is fixedly connected to the inside of the metal fiber layer (16), and the spandex layer (18) is fixedly connected to the inside of the graphene layer (17).

7. A heat preservation device for a large-scale reduction furnace bottom gas path according to claim 6, characterized in that: The polytetrafluoroethylene layer (19) is fixedly connected to the inside of the spandex layer (18), and the fiber wall layer (20) is fixedly connected to the inside of the polytetrafluoroethylene layer (19).

Images