Furnace starting and pressing structure of reduction furnace

Abstract

The utility model discloses a furnace starting and pressing structure of a reduction furnace, which comprises a reduction furnace base plate, one or more combinations of a clamping petal type silicon core and a bullet silicon core are arranged on the surface of the upper end of the reduction furnace base plate, and three composition structures are arranged among the reduction furnace base plate, the clamping petal type silicon core and the bullet silicon core. In the first structure, the upper end of the reduction furnace chassis is of a combined structure in which clamping petal type silicon cores and bullet silicon cores are distributed in a mixed mode; in the second structure, the whole upper end of the reduction furnace chassis is of a combined structure in which clamping petal type silicon cores are distributed; in the third structure, the upper end of the reduction furnace chassis is of a combined structure with bullet silicon cores distributed. According to the furnace starting and pressing structure of the reduction furnace, the success rate of furnace starting is increased, the operation cost is saved, the non-operation time is shortened, abnormal conditions such as lacking items are reduced, monitoring control is facilitated, and pressing operation is better carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of reduction furnace start-up pressure relief, in particular to a reduction furnace start-up pressure relief structure. Background Art

[0002] The reduction furnace start-up pressure relief structure is a supporting device for voltage relief when the reduction furnace is started and operated. It is one of the core equipment for polysilicon production, which is used to suppress the voltage of the silicon core in a non-oxidizing gas environment. With the continuous development of science and technology, people have higher and higher requirements on the manufacturing process of the reduction furnace start-up pressure relief structure.

[0003] The existing reduction furnace startup pressure relief structure has certain drawbacks when in use. For different graphite forms, the existing pressure relief method is single, the high pressure success rate is affected, the silicon core is lost, and the reduction furnace operation time is delayed, which brings certain adverse effects to the actual use process. Therefore, we propose a reduction furnace startup pressure relief structure. Utility Model Content

[0004] Technical problems solved: In view of the shortcomings of the prior art, the utility model provides a reduction furnace start-up pressure relief structure, which improves the success rate of furnace start-up, saves operating costs, shortens non-operating time, reduces abnormal situations such as missing items, facilitates monitoring and control, and better performs pressure relief operations, which can effectively solve the problems in the background technology.

[0005] Technical solution: To achieve the above purpose, the technical solution adopted by the utility model is: a reduction furnace start-up pressure structure, including a reduction furnace chassis, the upper end surface of the reduction furnace chassis is provided with one or more combinations of a flap-type silicon core and a bullet-shaped silicon core, and three component structures are provided between the reduction furnace chassis, the flap-type silicon core and the bullet-shaped silicon core;

[0006] In the first structure, the upper end of the reduction furnace chassis is a combined structure of a mixed distribution of a flap-type silicon core and a bullet-shaped silicon core;

[0007] In the second structure, the upper end of the reduction furnace bottom plate is a combined structure with a flap-type silicon core distribution;

[0008] In the third structure, the upper end of the reduction furnace chassis is entirely a combined structure with bullet-shaped silicon cores distributed therein.

[0009] Preferably, the petal-type silicon core includes a chuck, a silicon core head, a silicon core body, an insulating shell and a pressure detection control mechanism, the pressure detection control mechanism is located on the inner wall of the insulating shell, the chuck is located at the upper end of the pressure detection control mechanism, and the silicon core head is located on the inner side of the silicon core body.

[0010] Preferably, the pressure detection control mechanism is internally provided with a pressure controller, an insulation monitoring sensor, a voltage monitoring sensor, a voltage pressure mechanism, a variable resistor, a resistance monitor and a controller connecting seat, the insulation monitoring sensor and the voltage monitoring sensor are both connected to the position of the variable resistor, and the variable resistor is connected to the resistance monitor, the voltage pressure mechanism and the pressure controller.

[0011] Preferably, the insulating shell is snap-fitted and positioned with the pressure detection control mechanism, the insulating shell is integrally positioned with the chuck, and the silicon core head is snap-fitted and positioned with the silicon core body.

[0012] Preferably, the output ends of the insulation monitoring sensor, the voltage monitoring sensor and the resistance monitor are all electrically connected to the input end of the variable resistor, and the variable resistor controls the output signal of the voltage suppression mechanism.

[0013] Beneficial effects: Compared with the prior art, the utility model provides a reduction furnace start-up pressure relief structure, which has the following beneficial effects: the reduction furnace start-up pressure relief structure improves the success rate of furnace start-up, saves operating costs, shortens non-operating time, reduces abnormal conditions such as missing items, facilitates monitoring and control, and better performs pressure relief operations. ① Three-item bullet head and three-item card flap form, the pressure relief voltage is 7000 volts when starting the furnace, ② full card flap form, full-phase pressure relief, and the pressure relief voltage is 5500 volts; ③ full bullet head form, full-phase pressure relief, and the pressure relief voltage is 7000 volts. The entire reduction furnace start-up pressure relief structure has a simple structure and is easy to operate. The effect of use is better than that of the traditional method. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the first combination of a reduction furnace start-up pressure structure of the utility model.

[0015] Figure 2 It is a structural schematic diagram of the second combination of a reduction furnace startup pressure structure of the utility model.

[0016] Figure 3 It is a structural schematic diagram of the third combination of a reduction furnace start-up pressure structure of the utility model.

[0017] Figure 4 The utility model is a structural schematic diagram of a petal-type silicon core in a reduction furnace start-up pressure structure.

[0018] Figure 5 The utility model is a structural schematic diagram of a pressure detection control mechanism in a reduction furnace start-up pressure structure.

[0019] In the figure: 1. reduction furnace chassis; 2. petal-type silicon core; 3. bullet-shaped silicon core; 4. chuck; 5. silicon core head; 6. silicon core body; 7. insulating shell; 8. voltage-pressurization detection control mechanism; 9. voltage-pressurization controller; 10. insulation monitoring sensor; 11. voltage monitoring sensor; 12. voltage-pressurization mechanism; 13. variable resistor; 14. resistance monitor; 15. controller connector. DETAILED DESCRIPTION

[0020] The technical solution of the utility model will be clearly and completely described below in conjunction with the accompanying drawings and specific embodiments, but those skilled in the art will understand that the embodiments described below are part of the embodiments of the utility model, rather than all of the embodiments, and are only used to illustrate the utility model, and should not be considered as limiting the scope of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the utility model. If the specific conditions are not specified in the embodiments, they are carried out according to conventional conditions or conditions recommended by the manufacturer. If the manufacturer is not specified for the reagents or instruments used, they are all conventional products that can be purchased commercially.

[0021] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] like Figure 1-5 As shown, a reduction furnace start-up pressure structure includes a reduction furnace chassis 1, and the upper end surface of the reduction furnace chassis 1 is provided with one or more combinations of a flap-type silicon core 2 and a bullet-shaped silicon core 3, and three component structures are provided between the reduction furnace chassis 1, the flap-type silicon core 2 and the bullet-shaped silicon core 3;

[0024] In the first structure, the upper end of the reduction furnace bottom plate 1 is a combined structure in which the flap-type silicon core 2 and the bullet-shaped silicon core 3 are mixed and distributed;

[0025] In the second structure, the upper end of the reduction furnace bottom plate 1 is a combined structure with the silicon cores 2 distributed in a card-type manner;

[0026] In the third structure, the upper end of the reduction furnace chassis 1 is a combined structure with bullet-shaped silicon cores 3 distributed all over;

[0027] Improve the success rate of furnace startup, save operating costs, shorten non-operating time, reduce abnormal situations such as missing items, facilitate monitoring and control, and better perform pressure reduction operations.

[0028] Furthermore, the petal-type silicon core 2 includes a chuck 4, a silicon core head 5, a silicon core body 6, an insulating shell 7 and a pressure detection control mechanism 8. The pressure detection control mechanism 8 is located on the inner wall of the insulating shell 7, the chuck 4 is located at the upper end of the pressure detection control mechanism 8, and the silicon core head 5 is located on the inner side of the silicon core body 6.

[0029] Furthermore, a voltage suppression controller 9, an insulation monitoring sensor 10, a voltage monitoring sensor 11, a voltage suppression mechanism 12, a variable resistor 13, a resistance monitor 14 and a controller connecting socket 15 are provided inside the voltage suppression detection control mechanism 8. The insulation monitoring sensor 10 and the voltage monitoring sensor 11 are both connected to the position of the variable resistor 13, and the variable resistor 13 is connected to the resistance monitor 14, the voltage suppression mechanism 12 and the voltage suppression controller 9.

[0030] Furthermore, the insulating shell 7 and the pressure detection control mechanism 8 are engaged and positioned, the insulating shell 7 and the chuck 4 are integrally positioned, and the silicon core head 5 and the silicon core body 6 are engaged and positioned.

[0031] Furthermore, the output ends of the insulation monitoring sensor 10 , the voltage monitoring sensor 11 and the resistance monitor 14 are all electrically connected to the input end of the variable resistor 13 , and the variable resistor 13 controls and adjusts the output signal of the voltage suppressing mechanism 12 .

[0032] Working principle: The utility model includes a reduction furnace chassis 1, a flap-type silicon core 2, a bullet-shaped silicon core 3, a chuck 4, a silicon core head 5, a silicon core body 6, an insulating shell 7, a voltage suppression detection control mechanism 8, a suppression controller 9, an insulation monitoring sensor 10, a voltage monitoring sensor 11, a voltage suppression mechanism 12, a variable resistor 13, a resistance monitor 14, and a controller connecting seat 15. ① Three-item bullet head and three-item flap form, the suppression voltage is 7000 volts when starting the furnace; ② Full flap form, full-phase suppression, and a suppression voltage of 5500 volts; ③ Full bullet head form, full-phase suppression, and a suppression voltage of 7000 volts, which improves the success rate of furnace startup, saves operating costs, shortens non-operating time, reduces abnormal situations such as missing items, facilitates monitoring and control, and better performs suppression operations.

[0033] It should be noted that, in this article, relational terms such as first and second (number one, number two), etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "including one..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. The technicians in this industry should understand that the utility model is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected.

Claims

1. A reduction furnace start-up pressure structure, comprising a reduction furnace chassis (1), characterized in that: The upper end surface of the reduction furnace chassis (1) is provided with one or more combinations of a flap-type silicon core (2) and a bullet-shaped silicon core (3), and three component structures are provided between the reduction furnace chassis (1), the flap-type silicon core (2) and the bullet-shaped silicon core (3); In the first structure, the upper end of the reduction furnace bottom plate (1) is a combined structure in which the flap-type silicon core (2) and the bullet-shaped silicon core (3) are mixed and distributed; In the second structure, the upper end of the reduction furnace bottom plate (1) is a combined structure in which the petal-type silicon cores (2) are distributed; In the third structure, the upper end of the reduction furnace bottom plate (1) is entirely a composite structure in which bullet-shaped silicon cores (3) are distributed.

2. A reduction furnace start-up pressure structure according to claim 1, characterized in that: The petal-type silicon core (2) comprises a chuck (4), a silicon core head (5), a silicon core body (6), an insulating shell (7) and a pressure detection control mechanism (8), wherein the pressure detection control mechanism (8) is located on the inner wall of the insulating shell (7), the chuck (4) is located at the upper end of the pressure detection control mechanism (8), and the silicon core head (5) is located on the inner side of the silicon core body (6).

3. A reduction furnace start-up pressure structure according to claim 2, characterized in that: The pressure detection control mechanism (8) is internally provided with a pressure controller (9), an insulation monitoring sensor (10), a voltage monitoring sensor (11), a voltage pressure mechanism (12), a variable resistor (13), a resistance monitor (14) and a controller connecting seat (15); the insulation monitoring sensor (10) and the voltage monitoring sensor (11) are both connected to the position of the variable resistor (13); the variable resistor (13) is connected to the resistance monitor (14), the voltage pressure mechanism (12) and the pressure controller (9).

4. A reduction furnace start-up pressure structure according to claim 2, characterized in that: The insulating shell (7) and the pressure detection control mechanism (8) are snap-fitted and positioned, the insulating shell (7) and the chuck (4) are integrally positioned, and the silicon core head (5) and the silicon core body (6) are snap-fitted and positioned.

5. The reduction furnace start-up pressure structure according to claim 3, characterized in that: The output ends of the insulation monitoring sensor (10), the voltage monitoring sensor (11) and the resistance monitor (14) are all electrically connected to the input end of the variable resistor (13), and the variable resistor (13) controls and adjusts the output signal of the voltage pressing mechanism (12).

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