CN212819990U - Microwave hot air ignition and heat preservation device for sintering cup - Google Patents
Microwave hot air ignition and heat preservation device for sintering cup Download PDFInfo
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- CN212819990U CN212819990U CN202021226471.1U CN202021226471U CN212819990U CN 212819990 U CN212819990 U CN 212819990U CN 202021226471 U CN202021226471 U CN 202021226471U CN 212819990 U CN212819990 U CN 212819990U
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Abstract
A sintering cup microwave hot air ignition and heat preservation device comprises a moving mechanism, a microwave heating device and a sealing ring; the moving mechanism comprises a moving support, a lifting screw rod, a lifting transmission device, a base, a linear guide rail, a moving slide block, a horizontal screw rod and a horizontal transmission device, the microwave heating device comprises an upper flange, a furnace cover, a ceramic air inlet pipe, a heat preservation module, a ceramic furnace pipe cover, a ceramic furnace pipe, honeycomb ceramics, a microwave furnace chamber, a ceramic supporting brick, a bearing flange, an air guide pipe, a sealing flange, a sealing ring, an external heat preservation, a thermocouple and a microwave generator, and the sealing ring is arranged in a sealing groove of the sealing flange. The utility model discloses can realize the hot-blast ignition of microwave and keep warm to the sintering deposit top layer on the sintering cup to reduce ignition temperature and improve the quality of top layer sintering deposit.
Description
Technical Field
The utility model relates to a sintering technical field, in particular to sintering cup is igniteed and heat preservation device.
Background
In the process of the sintering cup test, fuel on the surface of the mixture needs to be ignited, then the combustion layer is gradually moved downwards by means of negative pressure generated by the exhaust fan, and finally the whole sintering process is completed. At present, coal gas or liquefied gas is generally used for ignition of a sintering cup as fuel, combustible gas is connected with a burner through a pipeline and is mixed with air in the burner, an ignition gun is used for ignition and combustion, the ignition temperature needs to reach 1100-1200 ℃, the energy consumption loss is large, and the quality of surface layer sintering ore is poor. Patent CN200610147772.3 discloses a method for sintering and igniting iron ore, which uses microwave high-temperature hot air to heat and ignite the fuel on the surface of the mixture, and the ignition temperature is reduced to 800-. The quality of the surface layer sintering ore is related to the mixture ratio of the sintering ore mixture, the temperature of the surface layer sintering ore, the ignition temperature, the air extraction amount and the like, and specific relational parameters of the surface layer sintering ore are determined by various experiments through a sintering cup.
Therefore, a set of experimental device needs to be designed on the sintering cup, so that the ignition temperature can be reduced, and the quality of the surface layer of the sintering ore can be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a hot-blast ignition of sintering cup microwave and heat preservation device is provided, make it realize on the sintering cup that the hot-blast ignition of microwave and sintering deposit top layer keep warm to reduce the quality of ignition temperature and improvement top layer sintering deposit.
In order to achieve the above object, the utility model adopts the following technical scheme:
a microwave hot air ignition and heat preservation device for a sintering cup comprises a moving mechanism, a microwave heating device and a sealing ring. The moving mechanism comprises a moving support, a lifting screw, a lifting transmission device, a base, a linear guide rail, a moving slide block, a horizontal screw and a horizontal transmission device; the movable support is fixed with the movable sliding block and moves horizontally on the base through the linear guide rail, the horizontal screw and the horizontal transmission device; the lifting screw rod is fixed with an upper flange of the microwave heating device, and the lifting screw rod can move up and down after being driven by the lifting transmission device so as to drive the microwave heating device to move up and down.
The microwave heating device comprises an upper flange, a furnace cover, a ceramic air inlet pipe, a heat preservation module, a ceramic furnace pipe cover, a ceramic furnace pipe, honeycomb ceramics, a microwave furnace chamber, ceramic supporting bricks, a bearing flange, an air guide pipe, a sealing flange, a sealing ring, an external heat preservation, a thermocouple and a microwave generator. The ceramic supporting bricks are placed on the bearing flange, the ceramic furnace tube and the honeycomb ceramic are placed on the ceramic supporting bricks, the ceramic furnace tube cover is placed on the ceramic furnace tube, and the ceramic air inlet tube is placed on the ceramic furnace tube cover. The ceramic furnace tube and the ceramic furnace tube cover form a heating hearth, the honeycomb ceramic is arranged in the hearth, and the heat preservation module is arranged outside the hearth to preserve heat of the honeycomb ceramic. The microwave oven cavity is arranged outside the heat preservation module, and the microwave generator is arranged around the microwave oven cavity. The thermocouple is inserted from the outer wall of the microwave oven chamber, penetrates through the heat insulation module and the ceramic support brick, is arranged at the bottom of the honeycomb ceramic, and measures the heated air temperature. The furnace cover is connected with the upper flange through screws so as to be convenient to install. The guide duct is welded at the bottom of the bearing flange, and the sealing flange is welded at the bottom of the guide duct.
The sealing ring is arranged in the sealing groove of the sealing flange.
The sealing ring is composed of an outer ring and a sealing material. The outer ring is a stainless steel metal woven net which can shield microwaves, and the sealing material is a graphite rope or a high-temperature-resistant rope.
The beneficial effects of the utility model are that can realize the hot-blast ignition of microwave and keep warm to the sintering deposit top layer on the sintering cup to reduce the quality of ignition temperature and improvement top layer sintering deposit.
Drawings
Fig. 1 is an elevation view of a moving mechanism.
Fig. 2 is a sectional view of the microwave heating apparatus.
Fig. 3 is a view showing a structure of a seal ring.
In the figure: 1-simulation workbench, 2-sintering cup, 3-microwave heating device, 4-moving mechanism, 5-moving support, 6-lifting screw, 7-lifting transmission device, 8-base, 9-linear guide rail, 10-moving slide block, 11-horizontal screw, 12-horizontal transmission device, 13-upper flange, 14-furnace cover, 15-ceramic air inlet pipe, 16-heat preservation module, 17-ceramic furnace pipe cover, 18-ceramic furnace pipe, 19-honeycomb ceramic, 20-microwave furnace chamber, 21-ceramic support brick, 22-bearing flange, 23-air guide pipe, 24-sealing flange, 25-sealing ring, 26-external heat preservation, 27-thermocouple, 28-microwave generator, 29-outer ring, 30-sealing material.
Detailed Description
The following further describes the embodiments of the present invention with reference to the attached drawings:
fig. 1 shows a sintering cup microwave hot air ignition and heat preservation device, which comprises a moving mechanism (4), a microwave heating device (3) and a sealing ring (25). The moving mechanism (4) comprises a moving support (5), a lifting screw (6), a lifting transmission device (7), a base (8), a linear guide rail (9), a moving slide block (10), a horizontal screw (11) and a horizontal transmission device (12). The movable support (5) is fixed with the movable sliding block (10) and horizontally moves left and right on the base (8) through the linear guide rail (9), the horizontal screw rod (11) and the horizontal transmission device (12). The lifting screw (6) is fixed with an upper flange (13) of the microwave heating device (3), and the lifting screw (6) can vertically move up and down after being driven by the lifting transmission device (7), so that the microwave heating device (3) is driven to move up and down.
Referring to fig. 2, the microwave heating device 3 includes an upper flange (13), a furnace cover (14), a ceramic air inlet pipe (15), a heat preservation module (16), a ceramic furnace pipe cover (17), a ceramic furnace pipe (18), honeycomb ceramics (19), a microwave furnace chamber (20), a ceramic support brick (21), a bearing flange (22), an air guide pipe (23), a sealing flange (24), a sealing ring (25), an outer heat preservation (26), a thermocouple (27), and a microwave generator (28). The ceramic support brick (21) is placed on the bearing flange (22), the ceramic furnace tube (18) and the honeycomb ceramic (19) are placed on the ceramic support brick (21), the ceramic furnace tube cover (17) is placed on the ceramic furnace tube (18), and the ceramic air inlet tube (15) is placed on the ceramic furnace tube cover (17). The ceramic furnace tube (18) and the ceramic furnace tube cover (19) form a heating hearth, the honeycomb ceramic (19) is arranged in the hearth, and the heat preservation module (16) is arranged outside the hearth to preserve heat of the honeycomb ceramic. The microwave oven cavity (20) is arranged outside the heat preservation module (16), and the microwave generator (28) is arranged around the microwave oven cavity (20). The thermocouple (27) is inserted from the outer wall of the microwave oven cavity (20), penetrates through the ceramic supporting brick (21) of the heat preservation module (16) and is arranged at the bottom of the honeycomb ceramic (19), and the heated wind temperature is measured. The furnace cover (14) is connected with the upper flange (13) through screws, and installation is convenient. The air guide pipe (23) is welded at the bottom of the bearing flange (22), and the sealing flange (24) is welded at the bottom of the air guide pipe (23).
The sealing ring (25) is arranged in the sealing groove of the sealing flange 24.
As shown in fig. 3, the seal ring (25) is composed of an outer ring (29) and a seal material (30). The outer ring (29) is a stainless steel metal woven net which can shield microwaves, and the sealing material (30) is a graphite rope or a high-temperature-resistant rope.
The working process is as follows: as shown in the figures 1 and 2, a microwave heating device (3) is firstly placed on a simulation workbench (1) and preheated to a certain temperature, after a sintering ore mixture is loaded on a sintering cup (2), a lifting transmission device (7) is started, the microwave heating device (3) is lifted up through a lifting screw rod (6), then a horizontal transmission device (12) is started, the microwave heating device (3) is horizontally moved to the upper part of the sintering cup (2) through a horizontal screw rod (11), and then the lifting transmission device (7) is started to put down the microwave heating device (3), so that a sealing flange surface (24) of the microwave heating device (3) is in contact with the upper plane of the sintering cup (2). Starting a microwave generator (28) to heat the honeycomb ceramics (19), simultaneously carrying out microwave radiation on the surface layer of the sinter mixture by microwaves, starting an exhaust fan at the bottom of the sintering cup (2), leading air to enter from a ceramic air inlet pipe (15), heating to 800-900 ℃ through the honeycomb ceramics (19), leading the air out from an air guide pipe (23) and then entering into the sinter, under the double action of high-temperature hot air and microwave radiation, the surface layer of the sinter mixture is ignited, the sinter layer gradually moves downwards, then reducing the power of the microwave generator (28), controlling the air temperature at 200-300 ℃, keeping the surface temperature of the sintering ore at 200-300 ℃ for about 2-5 minutes, and then the microwave generator (28) is closed, and the lifting transmission device (7) and the horizontal transmission device (12) are started to enable the microwave heating device (3) to return to the simulation workbench (1) to wait for the next experiment.
Claims (2)
1. The utility model provides a hot-blast ignition of sintering cup microwave and heat preservation device which characterized in that: comprises a moving mechanism, a microwave heating device and a sealing ring; the moving mechanism comprises a moving support, a lifting screw rod, a lifting transmission device, a base, a linear guide rail, a moving sliding block, a horizontal screw rod and a horizontal transmission device, the moving support is fixed with the moving sliding block and moves horizontally on the base through the linear guide rail, the horizontal screw rod and the horizontal transmission device, the lifting screw rod is fixed with an upper flange of the microwave heating device, and the lifting screw rod moves up and down after being driven by the lifting transmission device so as to drive the microwave heating device to move up and down; the microwave heating device comprises an upper flange, a furnace cover, a ceramic air inlet pipe, a heat preservation module, a ceramic furnace pipe cover, a ceramic furnace pipe, honeycomb ceramics, a microwave furnace chamber, a ceramic support brick, a bearing flange, an air guide pipe, a sealing flange, a sealing ring, external heat preservation, a thermocouple and a microwave generator, wherein the ceramic support brick is placed on the bearing flange, the ceramic furnace pipe and the honeycomb ceramics are placed on the ceramic support brick, the ceramic furnace pipe cover is placed on the ceramic furnace pipe, the ceramic air inlet pipe is placed on the ceramic furnace pipe cover, the ceramic furnace pipe and the ceramic furnace pipe cover form a heating furnace chamber, the honeycomb ceramics are placed in the furnace chamber, the heat preservation module is placed outside the furnace chamber to preserve heat, the microwave furnace chamber is arranged outside the heat preservation module, the microwave generator is placed around the microwave furnace chamber, the thermocouple is inserted from the outer wall of the microwave furnace chamber, penetrates through the heat preservation module, the furnace cover is connected with the upper flange through screws so as to be convenient to install, the air guide pipe is welded at the bottom of the bearing flange, and the sealing flange is welded at the bottom of the air guide pipe; the sealing ring is arranged in the sealing groove of the sealing flange.
2. The microwave hot air ignition and heat preservation device for the sintering cup as claimed in claim 1, wherein: the sealing ring is composed of an outer ring and a sealing material, the outer ring is a stainless steel metal woven net capable of shielding microwaves, and the sealing material is a graphite rope or a high-temperature-resistant rope.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021226471.1U CN212819990U (en) | 2020-06-29 | 2020-06-29 | Microwave hot air ignition and heat preservation device for sintering cup |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021226471.1U CN212819990U (en) | 2020-06-29 | 2020-06-29 | Microwave hot air ignition and heat preservation device for sintering cup |
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| Publication Number | Publication Date |
|---|---|
| CN212819990U true CN212819990U (en) | 2021-03-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021226471.1U Active CN212819990U (en) | 2020-06-29 | 2020-06-29 | Microwave hot air ignition and heat preservation device for sintering cup |
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|---|---|
| CN (1) | CN212819990U (en) |
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- 2020-06-29 CN CN202021226471.1U patent/CN212819990U/en active Active
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