CN213113626U

CN213113626U - Continuous pre-oxidation furnace

Info

Publication number: CN213113626U
Application number: CN202021627897.8U
Authority: CN
Inventors: 陈新华; 李凯; 袁豪雄
Original assignee: Jiangsu Mige New Materials Co ltd
Current assignee: Jiangsu Mige New Material Co.,Ltd.
Priority date: 2020-08-07
Filing date: 2020-08-07
Publication date: 2021-05-04
Anticipated expiration: 2030-08-07

Abstract

The utility model relates to a continuous pre-oxidation furnace, including furnace body and tensioning adjusting device, the furnace body comprises multisection furnace, and each section furnace's furnace chamber communicates each other, tensioning adjusting device includes drive mechanism and supplementary tensioning roller stick, the business turn over material mouth of furnace body is located to drive mechanism, furnace's merogenesis department is equipped with the supplementary tensioning roller stick of adjustable raw materials height, and the equal horizontal parallel mounting in furnace's inside has a plurality of supplementary tensioning roller stick. A continuous pre-oxidation stove can be through hot-blast circular blowing system with the air that preheats the module heating by the fan insufflate the furnace chamber, again through the circular blowing way air intake of leading back fan department realize heated air circulation to can be convenient highly adjust the use of equipment, each part of every section furnace body adopts the modularized design installation, the replacement maintenance of being convenient for can greatly reduce outage rate and fault time, brings better use prospect.

Description

Continuous pre-oxidation furnace

Technical Field

The utility model belongs to the preparation equipment field of high-efficient graphite felt, concretely relates to continuous pre-oxidation stove.

Background

The monocrystalline silicon material plays a vital role in the photovoltaic solar industry, the development of the photovoltaic industry in recent years brings great prosperity to the production and preparation industry of monocrystalline silicon, high-temperature equipment used for preparing monocrystalline silicon is basically a monocrystalline furnace, and a thermal field of the equipment is constructed and maintained by using a preferred heat-insulating material which is a high-efficiency graphite felt.

The polyacrylonitrile is used as a raw material, the finished graphite felt after preoxidation, carbonization and graphitization treatment can perfectly meet the requirements of a single crystal furnace on heat insulation materials, preoxidation is a low-temperature treatment process which raw fibers need to pass before carbonization, most of the preoxidation devices which are put into use at present are intermittent preoxidation furnaces, one production period of the equipment can only process one unit of raw felt, one production comprises five links of loading, heating, experiment, cooling, unloading and the like, and once a production process has a problem, the whole production process needs to be interrupted, the production mode has low efficiency and large energy consumption, and manpower and material resources are greatly wasted.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a continuous pre-oxidation furnace with simple structure and reasonable design in order to solve the technical defect problem of the intermittent pre-oxidation furnace.

The utility model discloses a following technical scheme realizes above-mentioned purpose:

the utility model provides a continuous pre-oxidation furnace, includes furnace body and tensioning adjusting device, the furnace body comprises multisection furnace, and each section furnace's furnace chamber communicates each other, tensioning adjusting device includes drive mechanism and supplementary tensioning roller stick, drive mechanism locates the business turn over material mouth of furnace body, furnace's subsection department is equipped with the supplementary tensioning roller stick of adjustable raw materials height, and the equal horizontal parallel mount in furnace's inside has a plurality of supplementary tensioning roller stick, and the furnace bottom is fixed by the support frame.

As the utility model discloses a further optimization scheme still includes the hot-blast system of blowing, the hot-blast system of blowing includes fan, ring air channel and preheats the module, it is used for heated air to preheat the module and blow in furnace's furnace chamber with hot-air by the fan, ring air channel is used for retrieving the hot-air in furnace to lead back the fan air intake and realize heated air circulation.

As a further optimization scheme of the utility model, every section furnace independently arranges one set of hot-blast circular blowing system, and the fan quantity of every hot-blast circular blowing system is 1-2, and the quantity of preheating the module is 1-3, preheats the air outlet of the air intake connection fan of module, and its air outlet communicates with the furnace lateral wall.

As the utility model discloses a further optimization scheme, preheat the module and include preheating body and support, preheating body passes through support detachably and connects in the furnace outside.

As a further optimization scheme of the utility model, the ring air blowing way is located the furnace body top, still be equipped with in the ring air blowing way and dismantle filter plate.

As a further optimization scheme of the utility model, the number of the furnace sections is 1-30.

As a further optimization scheme of the utility model, the furnace is the setting of the multilayer furnace that piles up, and the number of piles is between 1-10 layers.

As a further optimization scheme of the utility model, the bottom of furnace body still is equipped with the support frame.

As the utility model discloses a further optimization scheme, the furnace body surface still is equipped with the heat preservation, the heat preservation intussuseption is filled with the cotton piece of aluminium silicate fiber, the cotton piece of aluminium silicate fiber passes through fix with rivet in the heat preservation.

The beneficial effects of the utility model reside in that:

1) the utility model discloses, firstly, blow the air that preheats the module heating into the furnace chamber by the fan through the hot-blast circular blowing system, lead back the air intake of fan department through the circular blowing way again and realize heated air circulation, wherein, the fan quantity sets up to one, preheat the module and select the electrical heating finned tube to make into the module that generates heat, the wind speed of fan can be adjusted freely, the circular blowing way sets up in the furnace body top, lead the air-out side hot-blast back to the fan air inlet end, simultaneously, set up the removable filter plate in the wind channel, short fibril in the clearance wind channel, in order to prevent catching fire;

2) the utility model discloses, each part of constituteing every section furnace body adopts the modularization design installation, and the replacement maintenance of being convenient for can greatly reduce outage rate and fault time, then the furnace body design of merogenesis, technological temperature and tensioning dynamics that can be convenient for adjust each festival have effectively avoided cluster temperature and trouble incidence.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic overall top view of the present invention;

FIG. 3 is a schematic view of the entire front vertical surface of the present invention;

in the figure: 1. a furnace body; 2. a hot air circular blowing system; 3. a tension adjustment device; 4. a fan; 5. a circular air blowing passage; 6. a preheating module; 7. a traction mechanism; 8. an auxiliary tension roller; 101. a support frame; 102. And (4) a hearth.

Detailed Description

The present application will now be described in further detail with reference to the drawings, it should be noted that the following detailed description is given for illustrative purposes only and is not to be construed as limiting the scope of the present application, as those skilled in the art will be able to make numerous insubstantial modifications and adaptations to the present application based on the above disclosure.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention; in the description of the present invention, "a plurality" or "a plurality" means two or more unless otherwise specified.

Example 1

As shown in figures 1-3, a continuous pre-oxidation furnace comprises a furnace body 1 and a tension adjusting device 3, wherein the furnace body 1 is composed of a plurality of sections of furnace chambers 102, furnace chambers of the furnace chambers 102 are communicated with each other, the tension adjusting device 3 comprises a traction mechanism 7 and an auxiliary tension roller 8, the traction mechanism 7 is arranged at a feed inlet and a discharge outlet of the furnace body 1, the sections of the furnace chambers 102 are provided with the auxiliary tension roller 8 capable of adjusting the height of raw materials, a plurality of auxiliary tension roller 8 are transversely and parallelly arranged in the furnace chambers 102, the bottom of the furnace chambers 102 is fixed by a support frame 101, each section of furnace chamber 102 is independently provided with a set of hot air circular blowing system 2, the number of fans 4 of each hot air circular blowing system 2 is 1-2, the number of preheating modules 6 is 1-3, the air inlets of the preheating modules 6 are connected with the air outlets of the fans 4, the air outlets of the, the hearth 102 is a stacked multi-layer hearth 102 with 1-10 layers.

The hot air circulation system is characterized by further comprising a hot air circulation system 2, the hot air circulation system 2 comprises a fan 4, a circulation air blowing channel 5 and a preheating module 6, the preheating module 6 is used for heating air, the fan 4 blows the hot air into a furnace chamber of the furnace chamber 102, the circulation air blowing channel 5 is used for recycling the hot air in the furnace chamber 102 and guiding the hot air back to an air inlet of the fan 4 to realize hot air circulation, the preheating module 6 comprises a preheating body and a support, and the preheating body is detachably connected to the outer side of the furnace chamber 102 through the support.

The ring air blowing channel 5 is arranged at the top of the furnace body 1, the detachable filter screen plate is further arranged in the ring air blowing channel 5, the support frame 101 is further arranged at the bottom of the furnace body 1, the outer surface of the furnace body 1 is further provided with a heat insulation layer, and an aluminum silicate fiber cotton block is filled in the heat insulation layer and is fixed in the heat insulation layer through rivets.

The furnace body 1 consists of a plurality of sections of hearths 102, the length of the whole furnace body 1, the process temperature division and the drafting speed of a felt body can be controlled according to the number of the sections of the different hearths 102, and when the length of the furnace body 1 is 8 sections, the output speed of 0.07-0.1m per minute can be realized; when the length of the furnace body 1 is 10 knots, the output speed of 0.2-0.3m per minute can be realized; when the length of the furnace body 1 is 12 knots, the output speed of 0.5-0.7m per minute can be realized; when the structure of the furnace body 1 is 16 knots, the output speed of 0.8-1m per minute can be realized, and 8 knots of the hearth 102 are selected to form the furnace body 1.

The device is externally provided with a temperature measuring device, a drafting mechanism 7 rotating speed adjusting device, a heating module and a fan power control device, and the following electric control technology is used and is not described in detail.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims

1. A continuous pre-oxidation furnace is characterized in that: including furnace body (1) and tensioning adjusting device (3), furnace body (1) comprises multisection furnace (102), and the furnace chamber of each section furnace (102) communicates each other, tensioning adjusting device (3) include drive mechanism (7) and supplementary tensioning roller stick (8), the business turn over material mouth of furnace body (1) is located in drive mechanism (7), the merogenesis department of furnace (102) is equipped with the supplementary tensioning roller stick (8) of adjustable raw materials height, and the equal horizontal parallel mount in inside of furnace (102) has a plurality of supplementary tensioning roller stick (8), and furnace (102) bottom is fixed by support frame (101).

2. The continuous pre-oxidation furnace according to claim 1, further comprising a hot air circular blowing system (2), wherein the hot air circular blowing system (2) comprises a fan (4), a circular blowing channel (5) and a preheating module (6), the preheating module (6) is used for heating air and blowing the hot air into the furnace chamber of the furnace chamber (102) by the fan (4), and the circular blowing channel (5) is used for recovering the hot air in the furnace chamber (102) and guiding the hot air back to the air inlet of the fan (4) to realize hot air circulation.

3. The continuous pre-oxidation furnace according to claim 2, characterized in that each hearth (102) is independently provided with a set of hot air circular blowing system (2), the number of the fans (4) of each hot air circular blowing system (2) is 1-2, the number of the preheating modules (6) is 1-3, the air inlet of each preheating module (6) is connected with the air outlet of the fan (4), and the air outlet is communicated with the side wall of the hearth (102).

4. A continuous pre-oxidation furnace according to claim 2, characterized in that the preheating module (6) comprises a preheating body and a bracket, the preheating body being detachably connected outside the furnace chamber (102) by the bracket.

5. The continuous pre-oxygen furnace as claimed in claim 2, characterized in that the circular air blowing channel (5) is arranged at the top of the furnace body (1), and a detachable filter screen plate is arranged in the circular air blowing channel (5).

6. A continuous pre-oxidation furnace according to claim 1, characterized in that the number of the furnace hearth (102) sections is 1-30.

7. A continuous pre-oxidation oven according to claim 1, characterized in that the oven chamber (102) is provided as a stacked multi-layer oven chamber (102) with a number of layers between 1 and 10.

8. A continuous pre-oxidation furnace according to claim 1, characterized in that the bottom of the furnace body (1) is further provided with a support frame (101).

9. The continuous pre-oxidation furnace according to any one of claims 1 to 8, characterized in that an insulating layer is further arranged on the outer surface of the furnace body (1), an alumina silicate fiber cotton block is filled in the insulating layer, and the alumina silicate fiber cotton block is fixed in the insulating layer through rivets.