CN210569962U - Sealed furnace door of resistance furnace - Google Patents
Sealed furnace door of resistance furnace Download PDFInfo
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- CN210569962U CN210569962U CN201921517667.3U CN201921517667U CN210569962U CN 210569962 U CN210569962 U CN 210569962U CN 201921517667 U CN201921517667 U CN 201921517667U CN 210569962 U CN210569962 U CN 210569962U
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Abstract
The utility model relates to the technical field of heat treatment furnaces, in particular to a sealed furnace door of a resistance furnace, which comprises a furnace door cover plate and a heat preservation body, wherein the heat preservation body is arranged in the furnace door cover plate; the water beam comprises a metal shell, heat insulation cotton and cooling water pipes, wherein the heat insulation cotton is arranged in the metal shell, and the cooling water pipes are arranged in the heat insulation cotton in a zigzag manner; a supporting roller is arranged on the front side of the opening. Compared with the prior art, the beneficial effects of the utility model are as follows: 1) the process condition of a steel plate continuous production line can be well adapted, and the sealing property and the heat insulation property of the furnace door are kept on the premise of not influencing the continuous conveying of the steel plates; 2) the key inspection point of the furnace door is provided with a reversible color-changing temperature measurement patch, so that the key inspection point can timely react to the information of the leakage temperature of the furnace door and prompt maintenance.
Description
Technical Field
The utility model relates to a heat treatment furnace kiln technical field especially relates to a be applicable to continuous heat treatment production line, the better sealed furnace gate of resistance furnace of heat shield effect.
Background
At present, the electric resistance furnace is widely used in industry. Industrial electric resistance furnaces are generally composed of electric heating elements, masonry, metal casings, furnace doors, furnace mechanical and electrical control systems, etc. The heating power is from less than one kilowatt to thousands of kilowatts. The working temperature is lower than 650 ℃ and is a low-temperature furnace; a medium temperature furnace at 650-1000 ℃; the temperature is over 1000 ℃ and is a high temperature furnace. Compared with a flame furnace, the resistance furnace has the advantages of simple structure, uniform furnace temperature, convenient control, good heating quality, no smoke and dust, no noise and the like. The resistance furnace is an industrial furnace which heats a workpiece or a material by heating an electric heating element or a heating medium in the furnace by using current, and is a heating furnace which generates heat energy by using current through a resistance material. In modern mechanical industry, resistance furnaces are used for heating before metal forging, heating for metal heat treatment, brazing, sintering in powder metallurgy, roasting and annealing of glass ceramics, melting of low-melting metals, drying of sand molds and paint film layers, and the like.
With the rapid development of national economy, the demand of ultrahigh-strength plates and high-added-value steel plates is greatly improved. The method for producing the high-performance steel plate through the electromagnetic induction heating heat treatment mode is an advanced production mode, the mode has the advantages of small occupied area, low investment and maintenance cost, short heating time, over 94 percent of electric efficiency of an induction power supply and no pollutant discharge, austenite grains are refined after the steel plate is subjected to heat treatment, and the strength after quenching is improved by 50 MPa-100 MPa compared with other heating modes.
The utility model discloses a chinese utility model with patent application number 201721677727.9 discloses a resistance furnace gate device, including furnace body shell, set up the fire door in furnace body shell one end, with fire door complex furnace gate and be used for promoting the hoist mechanism of furnace gate, the top surface of fire door all inclines to set up with the bottom surface and highly reduces gradually along the direction that is close to furnace body shell inside, the fire door bottom is provided with the guide block to the direction protrusion inside furnace body shell dorsad, the guide block is on the coplanar towards the surface and the fire door bottom surface of furnace gate, be provided with on fire door top surface and/or the fire door bottom surface and prevent the furnace gate along the inside locating plate of fire door slip-in furnace body shell. The furnace door can slide into the furnace mouth by utilizing the gravity of the furnace door when descending and is tightly matched with the furnace mouth, the structure is simple, the operation is convenient, and the heat loss can be reduced, thereby saving energy. The furnace door structure can meet the sealing and heat insulation performance, but is not suitable for a steel plate continuous heat treatment production line.
Disclosure of Invention
The utility model aims at providing a resistance furnace sealing furnace gate overcomes prior art's is not enough, adapts to the requirement of the continuous heat treatment production line of steel sheet, under the prerequisite that does not influence the continuous transport of steel sheet, keeps the leakproofness and the heat-proof quality of furnace gate, reduces calorific loss, convenient operation simultaneously, and the key inspection point of furnace gate department is provided with repeatedly usable's high temperature sticker, improves the daily efficiency of patrolling and examining.
In order to achieve the above object, the utility model discloses a following technical scheme realizes:
a sealed furnace door of a resistance furnace comprises a furnace door cover plate and a heat insulation body, wherein the heat insulation body is arranged in the furnace door cover plate, and the furnace door cover plate is a metal frame body which is through from front to back; the water beam comprises a metal shell, heat-insulating cotton and a cooling water pipe, wherein the metal shell is a shell with a rear side opening, the heat-insulating cotton is arranged in the metal shell, the cooling water pipe is arranged in the heat-insulating cotton in a zigzag mode, and a water inlet and a water outlet of the cooling water pipe are both arranged on the metal shell; the front side of the opening is provided with a carrier roller, the carrier roller is connected with a carrier roller seat through a bearing seat, and the upper surface of the carrier roller is not lower than the lower edge of the opening.
Furthermore, thermal-insulated curtain has evenly arranged in the width direction of opening, thermal-insulated curtain's lower extreme and along the parallel and level under the opening.
Furthermore, the heat insulation curtain is 5-10 layers and is formed by densely arranging high-temperature resistant glass fiber wires with the diameter of 2-3 mm.
Furthermore, the upper end of the heat insulation curtain is embedded and connected in the heat insulation body.
Furthermore, the cooling water pipe is a stainless steel corrugated pipe with the diameter of 1.5-2.5 inches.
Furthermore, the carrier rollers are arranged in 2-3 rows along the advancing direction of the steel plate.
Furthermore, 2-5 reversible color-changing temperature measuring patches are adhered to the front side surface of the water beam.
Compared with the prior art, the beneficial effects of the utility model are as follows: 1) the process condition of a steel plate continuous production line can be well adapted, and the sealing property and the heat insulation property of the furnace door are kept on the premise of not influencing the continuous conveying of the steel plates; 2) the key inspection point of the furnace door is provided with the reversible color-changing temperature measurement patch, so that the daily inspection is facilitated, the information of the leakage temperature of the furnace door can be responded in time, the maintenance is prompted, and the energy loss is reduced.
Drawings
Fig. 1 is a schematic structural view of an embodiment of the resistance furnace of the present invention.
3 fig. 3 2 3 is 3 a 3 sectional 3 view 3 taken 3 along 3 line 3 a 3- 3 a 3 of 3 fig. 3 1 3. 3
Fig. 3 is a schematic view of an embodiment of the thermochromic temperature measuring patch of the present invention.
In the figure: 1-resistance furnace shell, 2-insulating brick, 3-sealing furnace door, 301-furnace door cover plate, 302-insulating body, 4-water beam, 401-metal shell, 402-insulating cotton, 403-cooling water pipe, 404-water inlet, 405-water outlet, 5-steel plate, 6-opening, 7-roller seat, 8-bearing seat, 9-roller, 10-heat-insulating curtain, 11-reversible color-changing temperature-measuring patch, 111-non-setting adhesive paper base, 112-patch and 12-resistance wire electrode.
Detailed Description
The following embodiments are further described in the following:
in the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-2, which are schematic structural views of an embodiment of the resistance furnace of the present invention, a furnace casing 1 of the resistance furnace and insulating bricks 2 inside the furnace casing 1, the insulating bricks 2 are high-alumina lightweight insulating bricks, a resistance wire electrode 12 is arranged on the furnace casing 1 of the resistance furnace, a sealing furnace door 3 includes a furnace door cover plate 301 and an insulating body 302, the insulating body 302 is arranged in the furnace door cover plate 301, the furnace door cover plate 301 is a metal frame body that is transparent in front and back, the rear side of the furnace door cover plate 301 is fixedly connected with the furnace casing 1 of the resistance furnace, the front side of the furnace door cover plate 301 is connected with a water beam 4, an opening 6 through which a steel plate 5 can continuously pass is arranged on the insulating body 302, and the insulating body 302; the water beam 4 comprises a metal shell 401, heat-preservation cotton 402 and cooling water pipes 403, the metal shell 401 is a shell with a rear opening, the heat-preservation cotton 402 is arranged in the metal shell 401, the heat-preservation cotton 402 is also rock wool or ceramic fiber cotton, the cooling water pipes 403 are arranged in the heat-preservation cotton 402 in a zigzag mode, a water inlet 404 and a water outlet 405 of each cooling water pipe 403 are arranged on the metal shell 401, each cooling water pipe 403 is a stainless steel corrugated pipe with the diameter of 1.5-2.5 inches, and the water inlet 404 and the water outlet 405 are connected with a water cooling system through steel wire reinforced hoses.
The front side of the opening 6 is provided with a carrier roller 9, the carrier roller 9 is connected with a carrier roller seat 7 through a bearing seat 8, the upper surface of the carrier roller 9 is not lower than the lower edge of the opening 6, the carrier roller seat 7 can be connected with a furnace shell 1 of the resistance furnace or other fixed objects, and when the steel plate is subjected to continuous heat treatment, the steel plate 5 is conveyed into the resistance furnace through the carrier roller 9.
Evenly arranged has thermal-insulated curtain 10 to insulate against heat curtain 10 on opening 6's the width direction is 5 layers, and is formed by the high temperature resistant glass fiber line densely arranged of diameter 2~3mm, and the connection is inlayed in heat-insulating body 302 in thermal-insulated curtain 10's upper end, and along the parallel and level under thermal-insulated curtain 10's the lower extreme and the opening 6, the purpose reduces the interior thermal excessive of stove, avoids thermal loss on the one hand, and on the other hand prevents that furnace gate department high temperature from causing the destruction to other equipment.
In order to ensure the stability of the steel plate 5 in the conveying process, the carrier rollers 9 can be arranged in 2-3 rows along the advancing direction of the steel plate 5.
Because the temperature is invisible, in order to find the temperature change at the furnace door of the resistance furnace in time, 5 reversible color-changing temperature measuring patches 11 can be pasted on the front side surface of the water beam 4, see fig. 3, the adhesive paper base 111 is sequentially provided with patches 112 with different temperature color changes, and the temperature range of the patches can be increased or decreased according to the actual situation. The reversible color-changing temperature-measuring patch belongs to a heat-sensitive test paper, has unique functions of color-changing temperature indication, digital display and reversible changed color, is provided with self adhesive sticker, can be attached to the front side surface of the water beam 4 and is used for monitoring the temperature of a connecting part. Once the temperature of the temperature monitoring part reaches or exceeds the rated temperature of the temperature measuring patch, the color-changing temperature measuring patch immediately changes from black to red (or other colors), and the temperature of the temperature monitoring part is easy to rise during patrol by people, so that the fault hidden danger is found, and the accident is prevented. After cooling down, the temperature measuring patch can immediately recover the original color, and the patch can still be used continuously. If the camera is installed near the sealing furnace door 3, the signal of the monitoring point can be remotely observed, the inspection efficiency is greatly improved, and the labor intensity is reduced.
The above-mentioned embodiments are only specific examples selected for the purpose of illustrating the objects, technical solutions and advantages of the present invention in detail, but should not limit the scope of the present invention, and all modifications, equivalent substitutions and improvements made without departing from the spirit and principles of the present invention should fall within the scope of the present invention.
Claims (7)
1. A sealed furnace door of a resistance furnace comprises a furnace door cover plate and a heat insulation body, wherein the heat insulation body is arranged in the furnace door cover plate, and the furnace door cover plate is a metal frame body which is through from front to back; the water beam comprises a metal shell, heat-insulating cotton and a cooling water pipe, wherein the metal shell is a shell with a rear side opening, the heat-insulating cotton is arranged in the metal shell, the cooling water pipe is arranged in the heat-insulating cotton in a zigzag mode, and a water inlet and a water outlet of the cooling water pipe are both arranged on the metal shell; the front side of the opening is provided with a carrier roller, the carrier roller is connected with a carrier roller seat through a bearing seat, and the upper surface of the carrier roller is not lower than the lower edge of the opening.
2. The electric resistance furnace sealing furnace door according to claim 1, characterized in that heat insulation curtains are uniformly arranged in the width direction of the opening, and the lower ends of the heat insulation curtains are flush with the lower edge of the opening.
3. The electric resistance furnace sealing furnace door according to claim 2, characterized in that the heat insulation curtain is 5-10 layers and is formed by densely arranging high-temperature resistant glass fiber wires with the diameter of 2-3 mm.
4. The electric resistance furnace sealing furnace door according to claim 2 or 3, characterized in that the upper end of the heat insulation curtain is embedded and connected in the heat preservation body.
5. The door of claim 1, wherein the cooling water pipe is a stainless steel corrugated pipe with a diameter of 1.5-2.5 inches.
6. The electric resistance furnace sealing furnace door according to claim 1, wherein the carrier rollers are arranged in 2-3 rows along the steel plate advancing direction.
7. The electric resistance furnace sealing furnace door according to claim 1, characterized in that 2-5 reversible color-changing temperature-measuring patches are stuck on the front side surface of the water beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921517667.3U CN210569962U (en) | 2019-09-12 | 2019-09-12 | Sealed furnace door of resistance furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921517667.3U CN210569962U (en) | 2019-09-12 | 2019-09-12 | Sealed furnace door of resistance furnace |
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| Publication Number | Publication Date |
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| CN210569962U true CN210569962U (en) | 2020-05-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921517667.3U Active CN210569962U (en) | 2019-09-12 | 2019-09-12 | Sealed furnace door of resistance furnace |
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| CN (1) | CN210569962U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237600A (en) * | 2021-05-14 | 2021-08-10 | 山东瑞烨法兰有限公司 | Method for monitoring sealing performance of furnace door of heat treatment furnace |
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2019
- 2019-09-12 CN CN201921517667.3U patent/CN210569962U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113237600A (en) * | 2021-05-14 | 2021-08-10 | 山东瑞烨法兰有限公司 | Method for monitoring sealing performance of furnace door of heat treatment furnace |
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