CN201497328U - Novel resistance band expansion furnace for vitrified small balls - Google Patents

Novel resistance band expansion furnace for vitrified small balls Download PDF

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Publication number
CN201497328U
CN201497328U CN2009200532099U CN200920053209U CN201497328U CN 201497328 U CN201497328 U CN 201497328U CN 2009200532099 U CN2009200532099 U CN 2009200532099U CN 200920053209 U CN200920053209 U CN 200920053209U CN 201497328 U CN201497328 U CN 201497328U
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CN
China
Prior art keywords
resistive band
expansion furnace
insulation layer
furnace
burner hearth
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Expired - Fee Related
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CN2009200532099U
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Chinese (zh)
Inventor
徐正明
马开永
陈道昌
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XINYANG SITONG MECHANICAL MANUFACTURING Co Ltd
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XINYANG SITONG MECHANICAL MANUFACTURING Co Ltd
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Priority to CN2009200532099U priority Critical patent/CN201497328U/en
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Abstract

The utility model belongs to the field of mechanical design and discloses a novel resistance band expansion furnace for vitrified small balls. The expansion furnace comprises a thermal insulating layer, a heat-preserving layer, a fireproof layer and a hearth, wherein the thermal insulating layer is arranged on the outermost layer of the expansion furnace, the heat-preserving layer is arranged in the thermal insulating layer, the fireproof layer is arranged between the heat-preserving layer and the hearth, the hearth adopts a resistance band heating element and divided into a high-temperature preheating area, a micro-expansion area, an expansion area and a high-temperature vitrifying area, and the height of the furnace body is 9-10 m. By adopting the resistance band as the heating element, the high-temperature radiation can be performed to the furnace tube in the hearth through the resistance band more sufficiently, therefore, the phenomenon that the resistance band is burned out due to the over-temperature is avoided; and the height of the furnace body is increased to 9-10 m, and the expansion time of the vitrified small balls can be prolonged, so that the vitrified small balls are expanded more sufficiently.

Description

The novel resistive band expansion furnace of glass bead
Technical field
The utility model relates to mechanical manufacturing field, specifically a kind of expansion furnace that is used to process expanded perlite.
Background technology
For many years, the processing industry of China's expanded perlite adopts mode of heatings such as traditional fire coal, combustion gas, fuel oil to carry out the production of expanded perlite always, the product of being produced is common perforate perlite, because this product has deficiencies such as water absorption rate height, intensity are low, can not be applied to wall thermal insulating always.From calendar year 2001, China develops first perlite electric expansion stove, but because the heating original paper is selected unreasonable, body of heater height deficiency reasons such as (high 8 meters) for use, the product of being produced does not still reach the building materials field index, in process of production, product cost is too high, equipment operation troubles rate height, and effective utilization rate of thermal energy is low.
In production process in recent years, existing perlite expansion electric furnace, adopted is Elema expansion electric furnace more, resistance wire highly is 8 meters for the heating original paper, but Elema expansion electric furnace, production cost is than higher, the heating original paper is short service life, maintenance of equipment rate height, and effective utilization rate of thermal energy is low, unit cost power consumption height, the body of heater external thermal insulation is than book, and heat loss is bigger, therefore now eliminates substantially and stops using.
What use was more at present is to adopt the expansion electric furnace of resistance wire as heater element, but many problems have appearred in use in the past few years: because design is unreasonable, the main heater element of equipment---resistance wire is placed in to be put in the brick, and the hot pair of high temperature furnace pipe is penetrated, and effective utilization rate of thermal energy is low; Because resistance wire and easily blowing, service life is short, and maintenance rate is too high, causes many manufacturers can't ordinary production; The body of heater external thermal insulation is than book, and heat loss is bigger; Because insufficient height (generally being no more than 8 meters) makes the pearl expansion time insufficient, the surface can not form vitreous; Because product can not fully expand and vitreous, product quality is descended, restricted the application of product.
The utility model content
For solving the problem that prior art exists, the utility model provides the high glass bead of a kind of effective utilization rate of thermal energy novel resistive band expansion furnace.
The utility model is achieved in that
The novel resistive band expansion furnace of a kind of glass bead; comprise thermal insulation layer, heat-insulation layer, flame retardant coating and burner hearth; described expansion furnace outermost layer is a thermal insulation layer; in the thermal insulation layer is heat-insulation layer; be flame retardant coating between heat-insulation layer and the burner hearth, described burner hearth adopts the resistive band heater element, and burner hearth divides high temperature preheating district, microdilatancy district, breathing space and high temperature vitreous district; each warm area is provided with resistive band, and the height of described body of heater is a 9-10 rice.
Optionally, be divided into 6-8 warm area in the described burner hearth.
Optionally, described expansion furnace also is provided with the temperature control system of many warm area controls, and described temperature control system is electrically connected the heating-up temperature of each warm area of control with resistive band.
Optionally, the height of described each warm area is a 1.2-1.5 rice.
Optionally, described resistive band is that integral body is linked with brick in the burner hearth.
Optionally, the thickness of described heat-insulation layer is 300-400MM.
Optionally, described resistive band is the banded stove silk of vertical setting of types type, is divided into two rows.
Optionally, described resistive band is the banded stove silk of horizontally-arranged type, is divided into two rows.
Glass bead (perlite) is produced; be that perlite ore is produced to the glass bead expansion furnace through preheating furnace; after ore in sand form enters resistive band expansion furnace described in the utility model; the natural falling bodies different warm areas (high temperature preheating district, microdilatancy district, breathing space, high temperature vitreous district) of flowing through in the high-temperature burner hearth of 9-10 rice are finished the physical change process of expansion.
The utility model adopts resistive band as heater element, can make resistive band more fully boiler tube be carried out hyperthermia radiation in burner hearth, and the phenomenon that overheating problem blows resistive band can not occur, has significantly reduced the maintenance of equipment rate; Because the less generation of phenomenon that resistive band blows, so saved in a large number electric weight because of maintenance consumed, and traditional resistance wire expansion furnace, because blowing of resistance wire, each repairing time needs three to four days, and heating up again to produce needs power consumption 4000 degree, and the utility model only this item, just, increased output simultaneously, saved a large amount of manpowers for manufacturer saves many expenses; The height of burner hearth extends to 9-10 rice, can prolong the expansion time of glass bead, makes the more abundant of glass bead expansion; extended time of high temperature vitreous; can make the more abundant of product surface vitreous, improve every technical indicator of product, improve the class of product.
Employing can be many temperature control system of warm areas control, accurately control the temperature of each warm area, can save energy consumption, can also adjust the temperature of different warm areas according to the actual product demand, but the product of the various models in production different industries field.In addition, adopt many warm areas,, can continue to produce, reduced the maintenance of equipment rate through adjusting the temperature of other warm areas, need not shutting down if a warm area breaks down in the production process.
Resistive band can be integral body and is linked with brick, and conventional art is a bolt-type, is easy to be blown in pyroprocess, and to be linked with brick be disposablely to infuse to integral body in the burner hearth that the utility model adopts, and increased intensity, prolonged service life.
External insulation layer to body of heater is thickeied, and has reduced heat loss, has saved energy consumption, but the while productivity gain.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, does not constitute to improper qualification of the present utility model, in the accompanying drawings:
The structural representation of the expansion furnace that Fig. 1 provides for the utility model embodiment 1;
The vertical view of the expansion furnace that Fig. 2 provides for the utility model embodiment 1,2;
The structural representation of the resistive band that Fig. 3 provides for the utility model embodiment 1;
The structural representation of the resistive band that Fig. 4 provides for the utility model embodiment 2.
The specific embodiment
Describe the utility model in detail below in conjunction with accompanying drawing and specific embodiment, be used for explaining the utility model in this illustrative examples of the present utility model and explanation, but not as to qualification of the present utility model.
Embodiment 1:
As Figure 1-3; the novel resistive band expansion furnace of the glass bead that present embodiment provides; comprise thermal insulation layer 1, heat-insulation layer 2, flame retardant coating 3 and burner hearth 4; described expansion furnace outermost layer is a thermal insulation layer 1, is heat-insulation layer 2 in the thermal insulation layer 1, is flame retardant coating 3 between heat-insulation layer 2 and the burner hearth 4; described burner hearth 4 adopts resistive band 5 heater elements; burner hearth 4 minutes high temperature preheating districts, microdilatancy district, breathing space and high temperature vitreous districts, each warm area is provided with resistive band 5, and the height of body of heater is a 9-10 rice.
Perlite ore is produced to the glass bead expansion furnace through preheating furnace; after ore in sand form enters the described resistive band expansion furnace of present embodiment; the natural falling bodies different warm areas (high temperature preheating district, microdilatancy district, breathing space, high temperature vitreous district) of flowing through in the high-temperature burner hearth of 9-10 rice; finish the physical change process of expansion; the pearl expansion time is abundant; the surface can form vitreous, obtains all very high product of every index.
Burner hearth can divide 6 warm areas in the present embodiment, and 6 warm areas comprise high temperature preheating district, microdilatancy district, breathing space and high temperature vitreous district, and the height of each warm area is a 1.2-1.5 rice;
Described resistive band 5 is linked with brick for integral body in the burner hearth, and described resistive band is the banded stove silk of vertical setting of types type, is divided into two rows (as shown in Figure 3);
Described insulation layer thickness can be 300MM-400MM;
Between described body of heater top layer and bottom and the outside steel plate 7 insulating brick 6 is set, the setting of insulating brick can reduce the loss of heat in the burner hearth, avoids the steel billet temperature of expansion furnace top and bottom too high, improves working environment.
Embodiment 2:
As shown in Figure 2; the novel resistive band expansion furnace of the glass bead that present embodiment provides; comprise thermal insulation layer 1, heat-insulation layer 2, flame retardant coating 3 and burner hearth 4; described expansion furnace outermost layer is a thermal insulation layer 1, is heat-insulation layer 2 in the thermal insulation layer 1, is flame retardant coating 3 between heat-insulation layer 2 and the burner hearth 4; described burner hearth 4 adopts resistive band 5 heater elements; burner hearth 4 minutes high temperature preheating districts, microdilatancy district, breathing space and high temperature vitreous districts, each warm area is provided with resistive band 5, and the height of body of heater is a 9-10 rice.
Perlite ore is produced to the glass bead expansion furnace through preheating furnace; after ore in sand form enters the described resistive band expansion furnace of present embodiment; the natural falling bodies different warm areas (high temperature preheating district, microdilatancy district, breathing space, high temperature vitreous district) of flowing through in the high-temperature burner hearth of 9-10 rice; finish the physical change process of expansion; the pearl expansion time is abundant; the surface can form vitreous, obtains all very high product of every index.
Burner hearth can divide 8 warm areas in the present embodiment, and 8 warm areas comprise high temperature preheating district, microdilatancy district, breathing space and high temperature vitreous district, and the height of each warm area is a 1.2-1.5 rice;
Described resistive band 5 is linked with brick for integral body in the burner hearth, and described resistive band is the banded stove silk of horizontally-arranged type, is divided into two rows (as shown in Figure 4);
Described insulation layer thickness is 300MM-400MM, and the increase of external insulation layer thickness has reduced heat loss, has saved energy consumption, but the while productivity gain;
Between described body of heater top layer and bottom and the outside steel plate 7 insulating brick 6 is set, the setting of insulating brick can reduce the loss of heat in the burner hearth, avoids the steel billet temperature of expansion furnace top and bottom too high, improves working environment;
Also be provided with the temperature control system of many warm area controls in the present embodiment, described temperature control system is electrically connected the accurately heating-up temperature of each warm area of control with resistive band 5, energy consumption can be saved, the temperature of different warm areas can also be adjusted according to the actual product demand, but the product of the various models in production different industries field.
More than technical scheme that the utility model embodiment is provided be described in detail, used specific case herein principle and the embodiment of the utility model embodiment are set forth, the explanation of above embodiment only is applicable to the principle that helps to understand the utility model embodiment; Simultaneously, for one of ordinary skill in the art, according to the utility model embodiment, the part that on the specific embodiment and range of application, all can change, in sum, this description should not be construed as restriction of the present utility model.

Claims (8)

1. novel resistive band expansion furnace of glass bead; comprise thermal insulation layer, heat-insulation layer, flame retardant coating and burner hearth; described expansion furnace outermost layer is a thermal insulation layer; in the thermal insulation layer is heat-insulation layer; be flame retardant coating between heat-insulation layer and the burner hearth, it is characterized in that: described burner hearth adopts the resistive band heater element, and burner hearth divides high temperature preheating district, microdilatancy district, breathing space and high temperature vitreous district; each warm area is provided with resistive band, and the height of described body of heater is a 9-10 rice.
2. the novel resistive band expansion furnace of glass bead as claimed in claim 1 is characterized in that: be divided into 6-8 warm area in the described burner hearth.
3. the novel resistive band expansion furnace of glass bead as claimed in claim 1 or 2 is characterized in that: described expansion furnace also is provided with the temperature control system of many warm area controls, and described temperature control system is electrically connected the heating-up temperature of each warm area of control with resistive band.
4. the novel resistive band expansion furnace of glass bead as claimed in claim 3 is characterized in that: the height of described each warm area is a 1.2-1.5 rice.
5. the novel resistive band expansion furnace of glass bead as claimed in claim 4 is characterized in that: described resistive band is that integral body is linked with brick in the burner hearth.
6. the novel resistive band expansion furnace of glass bead as claimed in claim 5 is characterized in that: the thickness of described heat-insulation layer is 300-400MM.
7. the novel resistive band expansion furnace of glass bead as claimed in claim 6 is characterized in that: described resistive band is the banded stove silk of vertical setting of types type, is divided into two rows.
8. the novel resistive band expansion furnace of glass bead as claimed in claim 6 is characterized in that: described resistive band is the banded stove silk of horizontally-arranged type, is divided into two rows.
CN2009200532099U 2009-03-24 2009-03-24 Novel resistance band expansion furnace for vitrified small balls Expired - Fee Related CN201497328U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103940218A (en) * 2014-04-04 2014-07-23 信阳市四通机械制造有限公司 Electric expansion furnace body for vitrified micro bubbles
CN107651979A (en) * 2017-10-25 2018-02-02 张家港市华孚实业有限公司 Expanded perlite manufacture expansion furnace
CN107726842A (en) * 2017-10-25 2018-02-23 张家港市华孚实业有限公司 Furnace for expanding perlite
CN112679184A (en) * 2020-12-28 2021-04-20 鲁米科技(山东)有限公司 Gypsum-based non-intumescent fire-retardant coating for steel structure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103940218A (en) * 2014-04-04 2014-07-23 信阳市四通机械制造有限公司 Electric expansion furnace body for vitrified micro bubbles
CN107651979A (en) * 2017-10-25 2018-02-02 张家港市华孚实业有限公司 Expanded perlite manufacture expansion furnace
CN107726842A (en) * 2017-10-25 2018-02-23 张家港市华孚实业有限公司 Furnace for expanding perlite
CN112679184A (en) * 2020-12-28 2021-04-20 鲁米科技(山东)有限公司 Gypsum-based non-intumescent fire-retardant coating for steel structure

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C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100602

Termination date: 20120324