CN214665943U - High-temperature sintering furnace - Google Patents
High-temperature sintering furnace Download PDFInfo
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- CN214665943U CN214665943U CN202120243677.3U CN202120243677U CN214665943U CN 214665943 U CN214665943 U CN 214665943U CN 202120243677 U CN202120243677 U CN 202120243677U CN 214665943 U CN214665943 U CN 214665943U
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Abstract
The utility model discloses a high temperature fritting furnace relates to high temperature fritting furnace technical field, including furnace body, bell and bottom plate, the furnace body inner wall hangs and is equipped with heating and heat preservation device, the vacuum pipeline has been seted up to furnace body lateral wall face, vacuum pipe connection has vacuum apparatus, be provided with a plurality of temperature measurement points on the furnace body, be connected with temperature measuring device on the temperature measurement point, the bottom plate below is provided with unloader, feed arrangement includes electric screw lift and electronic skip down, the utility model discloses for high temperature fritting furnace among the prior art, increased heating and heat preservation device, guarantee that inside temperature heat radiating rate reduces, temperature measuring device can guarantee the accuracy of temperature at a plurality of temperature measurement points, evacuating device guarantees that the furnace body is inside in vacuum state to improve material sintering quality.
Description
Technical Field
The utility model relates to a high temperature sintering stove technical field specifically is a high temperature sintering stove.
Background
The sintering furnace is a furnace in which crystal grains grow up, gaps (air holes) and grain boundaries gradually decrease at high temperature, the total volume of the furnace is shrunk through the transfer of substances, the density of the furnace is increased, and finally, the furnace becomes a compact polycrystalline sintering body with a certain microstructure.
However, the high-temperature sintering furnace in the prior art has a simple structure, and only realizes the material sintering process, so that the material sintering quality and efficiency are low.
SUMMERY OF THE UTILITY MODEL
The utility model provides a not enough to prior art, the utility model provides a high temperature fritting furnace, including furnace body, bell and bottom plate, the internal wall of furnace hangs and is equipped with heating and heat preservation device, the vacuum pipeline has been seted up to furnace body lateral wall face, the vacuum pipe connection has vacuum apparatus, be provided with a plurality of temperature measurement points on the furnace body, be connected with temperature measuring device on the temperature measurement point, bottom plate below is provided with unloader, unloader includes electronic lead screw lift and electronic skip.
Preferably, the furnace body is vertical double-layer water-cooling, is formed by drum and flange welding, and the outer painting is handled, the bell is double-layer water-cooling, is formed by dish head and flange welding, and the outer painting is handled, the bottom plate of the furnace is double-layer water-cooling, is formed by plectane and flange welding, and the outer painting is handled.
Preferably, the heating and heat-insulating device comprises an induction coil, a graphite heating body and a heat-insulating material, wherein the induction coil is formed by rolling a special-shaped T2 red copper tube, the graphite heating body is made of a fine-particle graphite material, and the heat-insulating material is composed of a carbon felt and corundum bricks.
Preferably, the vacuum device comprises a vacuum pump and a vacuum accessory, the vacuum accessory is arranged on the furnace cover and the vacuum pipeline, and the vacuum pump is connected to the vacuum pipeline.
Preferably, the electric screw rod lifter comprises a speed reducer, a steering gear, a lifter and a screw rod, wherein the driving end of the speed reducer is connected with the steering gear, the screw rod is connected with a nut, and the nut is connected with a material tray.
Preferably, the device further comprises a working platform, wherein the working platform comprises a platform and an escalator.
The utility model discloses following beneficial effect has:
the utility model discloses for the high temperature fritting furnace among the prior art, increased heating and heat preservation device, guarantee that inside temperature heat rate of heat radiation reduces, temperature measuring device can guarantee the accuracy of temperature at a plurality of temperature measurement points, evacuating device guarantees that the furnace body is inside to be in vacuum state to improve material sintering quality.
Drawings
FIG. 1 is a front view of the present invention;
fig. 2 is a side sectional view of the present invention;
FIG. 3 is a partial enlarged view of the electric screw lifter of the present invention;
in the figure: 1. a furnace body; 2. a furnace cover; 3. a furnace floor; 4. a vacuum line; 5. a temperature measuring device; 6. An electric lead screw lifter; 7. an electric skip car; 8. an induction coil; 9. a graphite heating element; 10. a thermal insulation material; 11. a vacuum attachment; 12. a station; 13. an escalator.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
The following working principles, detailed connecting means thereof, and the following main descriptions of the working principles and processes are well known in the art, and will be referred to by those skilled in the art for the specific connection and operation sequence of the components in this application.
Example (b): the electric furnace body consists of a furnace cover 2, a furnace body 1, a furnace bottom plate 3 and accessories arranged on the furnace bottom plate,
the furnace body 1 is vertical double-layer water cooling and is formed by welding a cylinder and a flange, the outer side of the furnace body is painted, the flange is made of a stainless steel plate, the inner layer is made of a stainless steel plate (304), the outer layer is made of high-quality carbon steel (Q235), the furnace body 1 is provided with a medium-frequency power supply (bus) interface, an inflation interface, a deflation valve, a vacuum pipeline, a temperature measuring interface and the like, the temperature measuring device 5 is arranged from the top of the furnace cover 2 (single platinum-rhodium temperature measuring and infrared temperature measuring device), the three interfaces for measuring the temperature of the outer wall of the furnace heat-preserving layer are vertically distributed on the upper, middle and lower positions (K even temperature measuring) of the side surface of the furnace body 1, the furnace body 1 is reserved with a multipoint temperature measuring device 5, and an induction coil 8 is hung on the inner wall of the furnace body 1 and can be installed from the bottom of the furnace body 1;
the furnace cover 2 is double-layer water-cooled and is formed by welding a disc-shaped end socket and a flange, the outer side of the furnace cover is subjected to painting treatment, the flange is made of a stainless steel plate, the inner layer is made of a stainless steel plate (304), the outer layer is made of high-quality carbon steel (Q235), an explosion-proof overpressure automatic air release valve and a pressure vacuum meter are arranged, and the upper furnace cover 2 and the furnace body 1 adopt a locking device with a spring;
the furnace bottom plate 3 is double-layer water-cooled, and is formed by welding a circular plate and a flange, the outer side of the furnace bottom plate is subjected to painting treatment, the flange is made of a stainless steel plate, the inner layer of the furnace bottom plate is made of a stainless steel plate (304), the outer layer of the furnace bottom plate is made of high-quality carbon steel (Q235) and is a main carrier of a heating and heat-preserving system, an air inlet interface is arranged in the center of the furnace bottom plate 3, and the interface flange can be connected with a multipoint temperature measuring device 5;
lower business turn over material system comprises 6 mechanisms of electronic lead screw lift, electronic skip 7 and install the annex on it, and the business turn over material mode: the material loading vehicle adopts a drag chain mode for water loading, electricity loading and gas loading pipelines, wherein the water pipeline and the circuit are separated;
the electric lead screw lifting mechanism 6 drives four lead screws to synchronously rotate through a speed reducer by virtue of two steering gears, four lifting machines and a plurality of couplings, and then drives nuts on the lifting platform to vertically move by virtue of the four lead screws, so that the charging tray platform is stably lifted;
the motor adopts variable frequency speed regulation, and the speed is set according to the requirement; a plurality of electrical limiting devices are arranged on the lifting platform to ascend and descend, the full stroke is divided into a plurality of sections, the lifting platform can be set in each section of stroke, and the automatic change of the lifting speed is realized; the parking locking function of each point of the material supporting disc is realized through mechanical self-locking of the screw rod;
the electric material vehicle 7 is driven by a speed reducer through chain transmission to drive wheels with guide devices arranged on the vehicle frame to synchronously rotate, so that the material supporting disc is conveyed out of the furnace body 1 from the lower part of the furnace body 1 to carry out material loading and unloading operation; the front section and the tail end of the track are provided with electric limiting devices, so that the parking positions of all points are accurate;
the lifting platform is formed by welding a steel plate and profile steel, 2 rails are arranged on the lifting platform, and the lifting platform is butted with a basic rail when reaching the lower limit, so that the continuous conversion of vertical motion and horizontal motion is realized;
in the installation and maintenance process, the whole heating and heat-insulating system (comprising a coil, a heating body and a heat-insulating layer) can pass through the system to realize the disassembly and assembly operation from the bottom of the furnace body 1;
the heating and heat-preserving system comprises an induction coil 8, a graphite heating body 9, a heat-preserving material 10 and the like;
the graphite heating body 9 is made of fine particle graphite material (TSK), the inner diameter of the heating body is 650mm, the heating body induces induction current through an alternating magnetic field generated by the induction coil 8 to generate heat, and the induction current is transmitted to a workpiece through heat radiation; the heat preservation material 10 consists of a carbon felt (the thickness is more than 120mm) and corundum bricks, wherein the carbon felt plays a role in heat preservation and heat insulation to reduce heat loss, and the corundum bricks are used for supporting the heating body and the heat preservation material 10 to play a role in heat insulation and insulation; the thickness of the outer layer of the heat preservation felt and the inner wall of the induction coil 8 is 20 mm;
the induction coil 8 is formed by rolling a special-shaped T2 copper tube, the copper tubes used by the induction coil 8 are all provided with inspection reports, the width of an inner cavity is 30mm, the thickness of the tube wall is 6mm, cooling water of each branch coil independently enters and exits, the induction heater is fixed on the side wall of the furnace body 1 through 8 bakelite stand columns, the induction heater has high electrical efficiency and good cooling effect, and the surface of the induction heater is subjected to insulation binding treatment by adopting high-insulation materials according to a professional process;
the induction heater is connected with a power supply through the power inlet device and the bus bar to supply power to the heater, wherein the insulating plate, the insulating sleeve and other components are reasonably assembled to form a power supply system with good insulation, so that the use safety and reliability are ensured;
2 vacuum pumps are 2X-70 rotary-vane vacuum pumps; the vacuum pump is controlled to be provided with a manual and automatic change-over switch to realize the wheel flow work of two pumps in an automatic state, the vacuum valve selects a pneumatic baffle valve and a manual butterfly valve which are suitable for working in oil-containing tail gas, the air displacement and the furnace pressure can be adjusted, the pneumatic baffle valve automatically closes an air extraction pipeline when the pump stops working, the furnace body 1 can not leak air, the electromagnetic differential pressure valve can be automatically closed when power is cut off or the pump is stopped, so as to prevent the oil backflow of the vacuum pump and the rapid reduction of the vacuum degree in the furnace, the furnace cover 2 is provided with an electric and manual air release valve, and the position of an electric adjusting valve and the position of an FP93 instrument are reserved;
the vacuum accessory 11 is installed on the furnace cover 2 and corresponding vacuum pipeline 4, the furnace cover 2 is equipped with electric and manual air release valves at the same time, the explosion-proof overpressure automatic air release valve with the caliber of 100mm, the measuring range is-0.1 MPa-0.15 MPa pointer type precision pressure gauge, the air outlet pipeline is equipped with 2 digital film type absolute pressure sensors, the measuring ranges are 100KPa and 1KPa respectively, the digital film type absolute pressure sensors are equipped with corresponding display instruments and installed on the control cabinet;
a graphite conical flow guide device is arranged between the top of the temperature zone and the air exhaust port, so that the tail gas is prevented from contacting the heat preservation felt and the induction coil 8, and the effect of isolation and protection is achieved;
the water cooling system consists of a water inlet main pipe, a closed loop water return pipe, a manual valve, a water pressure meter, a flow temperature sensor and the like, and has the functions of under-water pressure, no-pressure water break, key loop water temperature over-temperature alarm acousto-optic alarm and linkage protection break of an intermediate frequency power supply;
the total water inlet of the device is provided with a pressure sensor which is a product of American Baina company; the key waterway adopts a flow and temperature integrated sensor, selects an ifm product imported from Germany, has no mechanical part, realizes nondestructive work, is suitable for long-time accurate monitoring in a complex environment, can realize monitoring of flow volume, total amount and temperature by only one device, has an analog output function, can be visually observed, and can also form interlocking alarm; the rest non-key water paths adopt non-mechanical flow indicators and American Tumu products; PT100 temperature sensors are arranged at the total water inlet and the water return positions;
the pipeline adopts flange formula stainless steel ball valve control, and total inlet tube and each branch intake pipe all install the ball valve, intake valve and wet return one-to-one, and the sign is clear and definite, easy maintenance, and manometer and thermometer are established to the total pipeline of intaking, can dismantle that water-cooling connects whole stainless steel quick-operation joints that adopt, convenient dismantlement, all the other advance, the outlet pipe uses the hard tube to connect.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a high temperature fritting furnace, includes furnace body (1), bell (2) and bottom plate (3), its characterized in that, furnace body (1) inner wall hoist and mount have heating and heat preservation device, vacuum pipeline (4) have been seted up to furnace body (1) side wall face, vacuum pipeline (4) are connected with vacuum apparatus, be provided with a plurality of temperature measurement points on furnace body (1), be connected with temperature measuring device (5) on the temperature measurement point, bottom plate (3) below is provided with unloader, unloader includes electronic lead screw lift (6) and electronic skip (7).
2. A high temperature sintering furnace according to claim 1, characterized in that the furnace body (1) is a vertical double-layer water cooling, welded by a cylinder and a flange, and externally painted, the furnace cover (2) is a double-layer water cooling, welded by a dish-shaped end socket and a flange, and externally painted, and the furnace bottom plate (3) is a double-layer water cooling, welded by a circular plate and a flange, and externally painted.
3. The high-temperature sintering furnace according to claim 2, characterized in that the heating and heat-preserving device comprises an induction coil (8), a graphite heating element (9) and a heat-preserving material (10), wherein the induction coil (8) is formed by rolling a special-shaped T2 copper tube, the graphite heating element (9) is made of a fine-particle graphite material, and the heat-preserving material (10) is composed of a carbon felt and corundum bricks.
4. A high temperature sintering furnace according to claim 3, characterized in that the vacuum device comprises a vacuum pump and a vacuum attachment (11), the vacuum attachment (11) is mounted on the furnace cover (2) and the vacuum line (4), and the vacuum pump is connected to the vacuum line (4).
5. The high-temperature sintering furnace according to claim 4, wherein the electric screw lifter comprises a speed reducer, a steering gear, a lifter and a screw, the driving end of the speed reducer is connected with the steering gear, the screw is connected with a nut, and the nut is connected with a material tray.
6. A high temperature sintering furnace according to claim 5, characterized by further comprising a work platform comprising a platform (12) and an escalator (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120243677.3U CN214665943U (en) | 2021-01-28 | 2021-01-28 | High-temperature sintering furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120243677.3U CN214665943U (en) | 2021-01-28 | 2021-01-28 | High-temperature sintering furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214665943U true CN214665943U (en) | 2021-11-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120243677.3U Active CN214665943U (en) | 2021-01-28 | 2021-01-28 | High-temperature sintering furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214665943U (en) |
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2021
- 2021-01-28 CN CN202120243677.3U patent/CN214665943U/en active Active
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