CN209128591U - A kind of polycrystalline silicon ingot or purifying furnace that heat utilization rate is high - Google Patents

Abstract

The utility model discloses a kind of polycrystalline silicon ingot or purifying furnaces that heat utilization rate is high, including ingot furnace, through-hole pipe, connecting leg, fume pipe, inner casing, crucible, insulation construction, filler, sphere, air inlet, flue gas storehouse, mounting blocks, roller bearing, flow deflector, wind wheel, discharge pipe and vacuum valve control water conservancy diversion degree by the rotation of the flow deflector in flue gas storehouse, and wind wheel can increase water conservancy diversion degree in hot fume low flow velocity, the maximized thermal energy for utilizing hot fume, to reduce the heat of the discharge of flue gas, improve the re-using of heat, improve the utilization rate of thermal energy；It is recycled by the inside of air inlet and inner casing in inner casing, improves the working effect of ingot furnace；By insulation construction, it can prevent heat from directly passing through crucible and distribute outward, prevent heat loss and accomplish the effect of a heat preservation.

Description

A kind of polycrystalline silicon ingot or purifying furnace that heat utilization rate is high

Technical field

The utility model relates to polysilicon processing and manufacturing technology, the specially a kind of polysilicon that heat utilization rate is high casting Ingot furnace.

Background technique

Common polycrystalline silicon ingot or purifying furnace generally comprise furnace chamber, be placed in furnace chamber and the heat exchange platform for placing crucible and It is respectively used to the top heater heated to crucible and side heater.Top heater is set to the top of crucible, and side adds Hot device is set to the side of crucible, and top heater and side heater heat crucible.However, during ingot casting Hot stage has gas that will flow out from crucible top, and is expelled directly out, and causes the loss of heat, so that ingot furnace Heat utilization ratio reduces, and wastes resource, and the inside of crucible does not carry out processing distributing for heat, be easy to cause heat The disadvantages of distributing of amount.

Utility model content

The technical issues of the utility model solves is to overcome the heat utilization ratio of the prior art low and heat easily distributes Defect provides a kind of polycrystalline silicon ingot or purifying furnace that heat utilization rate is high.A kind of high polycrystalline silicon ingot casting stove of heat utilization rate There are heat utilization ratio height and heat to be not easy the features such as distributing.

To achieve the above object, the utility model provides the following technical solutions: including ingot furnace and crucible, the crucible Inner cavity is fixedly installed with ingot furnace, and the outer wall of the ingot furnace is provided with inner casing, the bottom of the inner casing offer several into Stomata, the top exterior walls of the ingot furnace offer several through-hole pipes, and the top exterior walls of the ingot furnace are fixedly installed with Connecting leg, each through-hole pipe are mutually connected by connecting leg, and the top of the connecting leg symmetrically opens up that there are two fume pipe, the castings Flue gas storehouse is provided with above ingot furnace, flue gas storehouse, the top drilling peace in the flue gas storehouse are connected in the top of two fume pipes Equipped with discharge pipe, the outer wall of the discharge pipe is fixedly installed with vacuum valve, and the inner wall of the crucible is fixedly installed with insulation construction.

Preferably, the flue gas storehouse includes several mounting blocks, and the rear wall of each mounting blocks is fixedly connected with flue gas The inner wall in storehouse, and each mounting blocks are flexibly connected roller bearing, each roller bearing is symmetrically installed with flow deflector, the cigarette The inner wall of gas storehouse is equipped with several wind wheels.

Preferably, the inner cavity of the insulation construction is provided with several spheres, and the lumen loading of the insulation construction has Asbestos.

Preferably, two flow deflectors are arranged in outer arcuate, and opening down, the wind wheel of two flow deflectors Linear equal part arrangement installation, each mounting blocks are arranged at the upper and lower of wind wheel in flue gas storehouse.

Preferably, the left and right intracavity sidewall of crucible is arranged in the insulation construction.

Compared with prior art, the utility model has the beneficial effects that being controlled by the rotation of the flow deflector in flue gas storehouse Process degree is guided, and wind wheel can increase water conservancy diversion degree in hot fume low flow velocity, the maximized thermal energy for utilizing hot fume, To reduce the heat of the discharge of flue gas, the re-using of heat is improved, the utilization rate of thermal energy is improved；By in inner casing The inside of air inlet and inner casing circulation, improves the working effect of ingot furnace；By insulation construction, heat can be prevented straight It connected crucible to distribute outward, and prevented heat loss and has accomplished the effect of a heat preservation.

Detailed description of the invention

Fig. 1 is the schematic diagram of internal structure of the utility model；

Fig. 2 is the enlarged drawing of A at the utility model Fig. 1；

Fig. 3 is the utility model insulation construction schematic internal view；

Figure label: 1, ingot furnace, 11, through-hole pipe, 12, connecting leg, 13, fume pipe, 2, inner casing, 3, crucible, 4, heat preservation knot Structure, 41, asbestos, 42, sphere, 5, air inlet, 6, flue gas storehouse, 61, mounting blocks, 62, roller bearing, 63, flow deflector, 64, wind wheel, 7, row Outlet pipe, 8, vacuum valve.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Fig. 1-3 is please referred to, the utility model provides a kind of technical solution: a kind of polycrystalline silicon ingot casting that heat utilization rate is high Furnace, including ingot furnace 1 and crucible 3, the inner cavity of crucible 3 are fixedly installed with ingot furnace 1, and the outer wall of ingot furnace 1 is provided with inner casing 2, The bottom of inner casing 2 offers several air inlets 5, and the top exterior walls of ingot furnace 1 offer several through-hole pipes 11, and ingot furnace 1 top exterior walls are fixedly installed with connecting leg 12, and each through-hole pipe 11 is mutually connected by connecting leg 12, and the top of connecting leg 12 is symmetrically opened If the top of ingot furnace 1 is provided with flue gas storehouse 6 there are two fume pipe 13, flue gas storehouse 6 is connected at the top of two fume pipes 13, two A flow deflector 63 is arranged in outer arcuate, and opening down, the linear equal part in flue gas storehouse 6 of wind wheel 64 of two flow deflectors 63 Arrangement installation, each mounting blocks 61 are arranged at the upper and lower of wind wheel 64, and the top drilling in flue gas storehouse 6 is equipped with discharge pipe 7, discharge The outer wall of pipe 7 is fixedly installed with vacuum valve 8, and vacuum valve 8 improves stability when flue gas is discharged in discharge pipe 7, the inner wall of crucible 3 It is fixedly installed with insulation construction 4, the left and right intracavity sidewall of crucible 3 is arranged in insulation construction 4, and the inner cavity of insulation construction 4 is provided with The material of several spheres 42, sphere 42 is polyurethane foam material, and the lumen loading of insulation construction 4 has asbestos 41, sphere 42 material is polyurethane foam material, can be very good to keep the temperature in crucible 3, and asbestos 41 can be very good to prevent heat Amount is lost.

Working principle, when ingot furnace 1 works, ingot furnace 1 gives off heat the utility model, and passing through first can be by interior The bottom of shell 2 offers several air inlets 5, and air inlet 5 can pour into pressure-air into inner casing 2 by air compressor machine, so that Air is recycled in the inner cavity of inner casing 2, improves the working effect of ingot furnace 1, and at the same time the flue gas that ingot furnace 1 generates passes through often A through-hole pipe 11 and fume pipe 13 discharge into flue gas storehouse 6, at this point, controlling water conservancy diversion by the rotation of flow deflector 63 and roller bearing 63 Degree, and wind wheel 64 can increase water conservancy diversion degree in hot fume low flow velocity, the maximized thermal energy for utilizing hot fume, thus The heat for reducing the discharge of flue gas, improves the re-using of heat, improves the utilization rate of thermal energy.

While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art, It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.

Claims (5)

1. a kind of polycrystalline silicon ingot or purifying furnace that heat utilization rate is high, including ingot furnace (1) and crucible (3), it is characterised in that: the earthenware The inner cavity of crucible (3) is fixedly installed with ingot furnace (1), and the outer wall of the ingot furnace (1) is provided with inner casing (2), the inner casing (2) Bottom offers several air inlets (5), and the top exterior walls of the ingot furnace (1) offer several through-hole pipes (11), and institute The top exterior walls for stating ingot furnace (1) are fixedly installed with connecting leg (12), and each through-hole pipe (11) passes through connecting leg (12) phase mutual connection Logical, the top of the connecting leg (12) is symmetrically opened up there are two fume pipe (13), is provided with flue gas storehouse above the ingot furnace (1) (6), flue gas storehouse (6) are connected at the top of two fume pipes (13), and the top drilling of the flue gas storehouse (6) is equipped with discharge pipe (7), the outer wall of the discharge pipe (7) is fixedly installed with vacuum valve (8), and the inner wall of the crucible (3) is fixedly installed with heat preservation knot Structure (4).

2. a kind of high polycrystalline silicon ingot or purifying furnace of heat utilization rate according to claim 1, it is characterised in that: the flue gas storehouse It (6) include several mounting blocks (61), the rear wall of each mounting blocks (61) is fixedly connected with the inner wall of flue gas storehouse (6), and Each mounting blocks (61) are flexibly connected roller bearing (62), and each roller bearing (62) is symmetrically installed with flow deflector (63), The inner wall of the flue gas storehouse (6) is equipped with several wind wheels (64).

3. a kind of high polycrystalline silicon ingot or purifying furnace of heat utilization rate according to claim 1, it is characterised in that: the heat preservation knot The inner cavity of structure (4) is provided with several spheres (42), and the lumen loading of the insulation construction (4) has asbestos (41).

4. a kind of high polycrystalline silicon ingot or purifying furnace of heat utilization rate according to claim 2, it is characterised in that: led described in two Flow (63) is arranged in outer arcuate, and two flow deflectors (63) is opening down, and the wind wheel (64) is in flue gas storehouse (6) Linear equal part arrangement installation, each mounting blocks (61) are arranged at the upper and lower of wind wheel (64).

5. a kind of high polycrystalline silicon ingot or purifying furnace of heat utilization rate according to claim 1, it is characterised in that: the heat preservation knot The left and right intracavity sidewall in crucible (3) is arranged in structure (4).