CN216282756U - Sintering furnace for manufacturing plastic sintering piece - Google Patents
Sintering furnace for manufacturing plastic sintering piece Download PDFInfo
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- CN216282756U CN216282756U CN202122571198.7U CN202122571198U CN216282756U CN 216282756 U CN216282756 U CN 216282756U CN 202122571198 U CN202122571198 U CN 202122571198U CN 216282756 U CN216282756 U CN 216282756U
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Abstract
The utility model provides a sintering furnace for manufacturing a plastic sintering piece, which comprises: the outer wall comprises three side walls, a top wall and a bottom wall which are sequentially connected, and a furnace door is hinged on each side wall; the heat preservation layer is arranged on the side wall, the top wall and the bottom wall; the bright aluminum plate is arranged on the heat-insulating layer; the electric heating tubes are arranged on the three side walls and are fixedly connected with the bright aluminum plate; the rail is arranged on the bottom wall and used for clamping a mold vehicle of the plastic-fired part; the U-shaped air channel is arranged above the bottom wall, the opening of the U-shaped air channel faces the furnace door, a plurality of air outlets are formed in the U-shaped air channel, and the U-shaped air channel is arranged to avoid the rail; the air inlet of the hot air circulation unit penetrates through the top wall, the heat preservation layer and the bright aluminum plate, the air outlet of the hot air circulation unit is communicated with the U-shaped air channel, and the hot air circulation unit is arranged opposite to the furnace door. The temperature in the sintering furnace can be ensured to be uniform in the sintering process, so that the uniformity of the micropore structure of the base body of the plastic-sintered part is improved, and the dust trapping rate, the filtering precision and the filtering efficiency are improved.
Description
Technical Field
The utility model relates to the technical field of preparation of a plastic sintering piece, in particular to a sintering furnace for manufacturing the plastic sintering piece.
Background
The plastic sintered part is a plastic sintered plate or a plastic sintered pipe, 300 ten thousand units of ultrahigh molecular weight polyethylene powder is used as a main material, conductive carbon black, glass beads and high-density polyethylene powder are used as auxiliary materials, the main material and the auxiliary materials are mixed and sintered into a microporous rigid matrix, and a polytetrafluoroethylene PTFE filter membrane layer is added on the surface of the microporous rigid matrix. The plastic sintered piece is a filtering material with high filtering precision and high efficiency, has the advantages of oil resistance, high temperature resistance, acid and alkali resistance, wear resistance, moisture resistance and recycling, has a dust collection rate depending on the performance of a filtering membrane and a matrix microporous structure, can keep the collection efficiency of ultrafine dust with the particle size of less than 0.1 mu m at 99.99 percent, and is widely applied to various fields of steel production, coal production, cement production, automobile manufacture, medical pharmacy, mechanical manufacture, laser welding, biological purification, electronic original device manufacture, food processing, aerospace and the like.
However, as shown in fig. 1, in the currently used sintering furnace, only three surfaces of the furnace body 1 'are provided with electric heating tubes 3', the furnace door 5 'is hinged with the furnace body 1', the inner wall of the furnace body 1 'is provided with a heat preservation layer 2', the bottom wall of the furnace body 1 'is provided with a track 4', but the electric heating tubes 3 'cannot be additionally arranged on the furnace door 5', so that the inner, outer, upper and lower temperatures of the furnace are not uniform in the sintering process, the micropore structure of the sintered plastic burning piece substrate is not uniform, and the dust collection rate, the filtering precision and the filtering efficiency are greatly reduced.
Therefore, there is a need to develop a sintering furnace for manufacturing a plastic-sintered part, which can ensure uniform temperature in the sintering furnace during sintering, further improve the uniformity of the microporous structure of the plastic-sintered part substrate, and improve the dust collection rate, the filtration precision and the filtration efficiency.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to solving one of the technical problems of the prior art or the related art.
The utility model provides a sintering furnace for manufacturing a plastic sintering piece.
In view of the above, the present invention provides a sintering furnace for manufacturing a plastic-sintered part, the sintering furnace comprising:
the outer wall comprises three side walls which are sequentially connected, a top wall arranged above the side walls and a bottom wall arranged below the side walls, and a furnace door is hinged to each side wall;
the heat-insulating layer is arranged on the side wall, the top wall and the bottom wall;
the bright aluminum plate is arranged on the heat insulation layer;
the electric heating tubes are arranged on the three side walls and are fixedly connected with the bright aluminum plate;
the rail is arranged on the bottom wall and used for clamping the mold vehicle of the sintering part;
the U-shaped air channel is arranged above the bottom wall, the opening of the U-shaped air channel faces the furnace door, a plurality of air outlets are formed in the U-shaped air channel, and the U-shaped air channel is arranged to avoid the rail;
the air inlet of the hot air circulation unit penetrates through the top wall, the heat preservation layer and the bright aluminum plate, the air outlet of the hot air circulation unit is communicated with the U-shaped air channel, and the hot air circulation unit is opposite to the furnace door.
Further, the hot air circulation unit includes:
an air inlet of the air suction duct penetrates through the top wall, the heat insulation layer and the bright aluminum plate, and an air outlet of the air suction duct is communicated with the U-shaped air duct;
the axial flow fan is arranged on the air suction duct and is positioned close to the top wall.
Further, the sintering furnace further comprises: a mold rotating unit disposed between the bottom wall and the rail, the mold rotating unit being capable of rotating the rail.
Further, the mold rotating unit includes:
the turntable is arranged below the track and is fixedly connected with the track;
a bearing disposed within the bottom wall;
the turbine is arranged below the turntable and is fixedly connected with the inner ring of the bearing;
the worm is arranged on one side of the turbine, and spiral teeth on the worm are meshed with external teeth of the turbine;
and the power unit group is connected with the worm and enables the worm to rotate.
Further, the power unit includes:
the speed reducing motor is arranged outside the sintering furnace;
one end of the transmission shaft is connected with an output shaft of the speed reducing motor through a connecting shaft sleeve, the other end of the transmission shaft penetrates through the side wall to be fixedly connected with the worm, and the transmission shaft is positioned between the U-shaped air duct and the bottom wall;
and the base is arranged below the speed reducing motor and can align the axis of the output shaft of the speed reducing motor with the axis of the worm.
Further, the outer wall is made of refractory brick piles.
Furthermore, the material of heat preservation is rock wool.
Further, the sintering furnace further comprises: and the temperature monitoring unit is used for monitoring the temperature in the sintering furnace.
The technical scheme provided by the utility model can have the following beneficial effects:
the heat is reflected back to the center of the sintering furnace through the arrangement of the bright aluminum plate, so that the heat loss is reduced; through the setting in heated air circulation unit and U type wind channel, can guarantee that the temperature in the sintering furnace is even in sintering process, and then improve and mould a fever base member microporous structure degree of consistency, improve dust entrapment rate, filter fineness, filtration efficiency.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the utility model, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the utility model and together with the description, serve to explain the principles of the utility model.
In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present invention, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without creative efforts.
Fig. 1 shows a schematic internal view of a sintering furnace according to the prior art;
FIG. 2 shows a front view of the interior of a sintering furnace for the production of a sintered part according to one embodiment of the utility model;
FIG. 3 shows a side view of the interior of a sintering furnace for the production of a sintered part according to one embodiment of the utility model;
FIG. 4 shows a bottom view of the interior of a sintering furnace for the production of a sintered part according to one embodiment of the utility model;
fig. 5 shows a schematic representation of the operation of a sintering furnace for the production of a sintered part according to an embodiment of the utility model.
Wherein, the corresponding relationship between the reference numbers and the component names in fig. 1 is:
1 ' furnace body, 2 ' heat preservation layer, 3 ' electric heating tube, 4 ' track and 5 ' furnace door;
the correspondence between reference numerals and part names in fig. 2 to 5 is:
the device comprises an outer wall 1, a heat preservation layer 2, a bright aluminum plate 3, an electric heating tube 4, a track 5, a turntable 6, a turbine 7, a worm 8, a bearing 9, a U-shaped air duct 10, an axial flow fan 11, an air suction duct 12, a speed reducing motor 13, a base 14, a shaft connecting sleeve 15, a transmission shaft 16, a furnace door 17, an auxiliary track 18, a plastic burning part mould 19, a mould car 20 and a track frame 21.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the utility model, as detailed in the appended claims.
Example 1
FIG. 2 shows a front view of the interior of a sintering furnace for the production of a sintered part according to one embodiment of the utility model;
FIG. 3 shows a side view of the interior of a sintering furnace for the production of a sintered part according to one embodiment of the utility model; fig. 4 shows a bottom view of the interior of a sintering furnace for the production of a sintered article according to an embodiment of the utility model.
As shown in fig. 2 to 4, the present embodiment proposes a sintering furnace for producing a molded article, the sintering furnace including:
the outer wall 1 comprises three side walls which are sequentially connected, a top wall arranged above the side walls and a bottom wall arranged below the side walls, and a furnace door 17 is hinged to the side walls;
the heat preservation layer 2 is arranged on the side wall, the top wall and the bottom wall;
a bright aluminum plate 3 arranged on the heat-insulating layer 2;
the electric heating tubes 4 are arranged on the three side walls, and the electric heating tubes 4 are fixedly connected with the bright aluminum plate 3;
the rail 5 is arranged on the bottom wall, and the rail 5 is used for clamping a mold vehicle 20 of the plastic-fired part;
the U-shaped air duct 10 is arranged above the bottom wall, the opening of the U-shaped air duct 10 faces the furnace door 17, a plurality of air outlets are formed in the U-shaped air duct 10, and the U-shaped air duct 10 is arranged to avoid the rail 5;
the hot air circulation unit, the air intake of hot air circulation unit runs through roof, heat preservation 2 and bright aluminum plate 3, and the air outlet and the U type wind channel 10 intercommunication of hot air circulation unit, hot air circulation unit and furnace gate 17 set up relatively.
The heat is reflected back to the center of the sintering furnace through the arrangement of the bright aluminum plate 3, so that the heat loss is reduced; through the setting of heated air circulation unit and U type wind channel 10, can guarantee that the temperature in the sintering furnace is even in the sintering process, and then improve the sintering piece base body microporous structure degree of consistency, improve dust entrapment rate, filter fineness, filtration efficiency.
It should be noted that, the electric heating tubes 4 are disposed on the three side walls to heat the mold 19 for sintering in the sintering furnace, and the U-shaped air duct 10 is provided with a plurality of air outlets to return hot air to the sintering furnace, so that on one hand, heat loss can be reduced, and on the other hand, hot air can be discharged from the air outlets to improve the uniformity of temperature in the sintering furnace.
Further, the hot air circulation unit includes:
an air inlet of the air suction duct 12 penetrates through the top wall, the heat insulation layer 2 and the bright aluminum plate 3, and an air outlet of the air suction duct 12 is communicated with the U-shaped air duct 10;
and the axial flow fan 11 is arranged on the air suction duct 12, and the axial flow fan 11 is positioned at a position close to the top wall.
Specifically, the axial flow fan 11 draws out hot air in the sintering furnace from the top, and the hot air is led to the U-shaped air channel 10 in the furnace through the air suction channel 12 to be blown out, so that the purpose of keeping the temperature in the sintering furnace consistent is achieved.
Further, the sintering furnace also comprises: and a mold rotating unit provided between the bottom wall and the rail 5, the mold rotating unit being capable of rotating the rail 5.
The rotating unit can drive the mold trolley 20 and the burning part mold 19 therein to rotate, so that the burning part mold 19 is heated more uniformly.
Further, the mold rotating unit includes:
the turntable 6 is arranged below the track 5, and the turntable 6 is fixedly connected with the track 5;
the bearing 9 is arranged in the bottom wall;
the turbine 7 is arranged below the rotary table 6, and the turbine 7 is fixedly connected with the inner ring of the bearing 9;
the worm 8 is arranged on one side of the worm wheel 7, and spiral teeth on the worm 8 are meshed with external teeth of the worm wheel 7;
and the power unit group is connected with the worm 8 and enables the worm 8 to rotate.
Specifically, the power unit group makes worm 8 rotatory, the external tooth through helical tooth on the worm 8 and turbine 7 meshes mutually, and then drives the rotation of turbine 7, the rotation through turbine 7 drives carousel 6 and track 5 on it rotates, through track 5 chucking mould car 20, make mould car 20 can rotate on carousel 6, guarantee to mould in the mould car 20 and burn a mould 19 thermally equivalent, and then improve and to mould 19 base member microporous structure degrees of consistency of a mould, improve the dust entrapment rate, the filter fineness, the filtration efficiency.
Further, the power unit includes:
a speed reduction motor 13 disposed outside the sintering furnace;
one end of the transmission shaft 16 is connected with an output shaft of the speed reducing motor 13 through a connecting shaft sleeve 15, the other end of the transmission shaft 16 penetrates through the side wall to be fixedly connected with the worm 8, and the transmission shaft 16 is located between the U-shaped air duct 10 and the bottom wall;
and a base 14 provided below the reduction motor 13 and capable of aligning an axis of an output shaft of the reduction motor 13 with an axis of the worm 8.
The rotation of gear motor 13 is passed through transmission shaft 16 and is transmitted worm 8, makes worm 8 rotatory, and wherein the setting of transmission shaft 16 is in order to guarantee that gear motor 13's rotatory power can effectively transmit worm 8, and the setting of base 14 can make gear motor 13's the axis of the output shaft align with the axis of worm 8, guarantees power transmission's stability.
Further, the outer wall 1 is made of a refractory brick stack.
The refractory brick has good compactness and strength, good high temperature resistance and good shock resistance, so that the outer wall of the sintering furnace can not be damaged under the condition of rapid temperature rise or temperature drop and the like, and the service life of the sintering furnace is prolonged.
Further, the material of heat preservation 2 is rock wool.
The rock wool has the advantages of light weight, small heat conductivity coefficient, good elasticity, non-combustibility, non-moth resistance, non-decay and chemical stability, and simultaneously has super-strong sound insulation performance, so that the rock wool can not be combusted when the internal heating temperature is too high, and the use safety of the less sintering furnace is improved.
Further, the sintering furnace also comprises: and the temperature monitoring unit is used for monitoring the temperature in the sintering furnace.
The temperature in the sintering furnace can be monitored by the temperature monitoring unit, and the axial flow fan 11 is controlled to be started according to the temperature, so that the hot air in the sintering furnace can be recycled.
Example 2
Fig. 5 shows a schematic representation of the operation of a sintering furnace for the production of a sintered part according to an embodiment of the utility model.
As shown in fig. 5, according to the sintering furnace for manufacturing a plastic burning part in embodiment 1, the working process of the sintering furnace is described in this embodiment, a material required by the plastic burning part (a plastic burning plate or a plastic burning pipe) and mixed by a certain proportion is filled in a plastic burning part mold 19, the filled plastic burning part mold 19 is lifted to a mold vehicle 20, the mold vehicle 20 is positioned on a rail frame 21, a falling auxiliary rail 18 is connected with a furnace rail 5, the mold vehicle 20 is pushed into the sintering furnace, the mold vehicle 20 is tightly clamped with the mold vehicle 20 through the rail 5, the auxiliary rail 18 is lifted, a furnace door 17 is closed and locked, a power supply is turned on, a heating switch is turned on, an electric heating pipe 4 starts to work, and the temperature of the sintering furnace is increased.
Through the temperature monitoring unit, after the temperature in the sintering furnace rises to 270 ℃ to 280 ℃, the switch of the axial flow fan 11 is turned on, the axial flow fan 11 works, hot air is sucked out through the air suction duct 12 and then flows back to the U-shaped air duct 10 at the bottom in the furnace, the hot air is blown out through a plurality of air outlets on the U-shaped air duct 10 to keep the temperature of each part in the sintering furnace balanced, meanwhile, the speed reducing motor 13 is turned on, the worm 8 is rotated through the transmission shaft 16, the worm wheel 7 is driven to rotate, the rotary disc 6 on the worm wheel 7 is rotated, the mould vehicle 20 is rotated at the speed of 2 to 3 revolutions per minute, and the purpose of uniformly heating each surface of the plastic burning part mould 19 is achieved.
And finally, keeping the temperature in the sintering furnace at 270-280 ℃ for 2.5 hours, closing the power supply, opening the furnace door 17, connecting the falling auxiliary rail 18 with the rail 5 in the furnace, pulling out the mold vehicle 20, and finishing the sintering work.
Other embodiments of the utility model will be apparent to those skilled in the art from consideration of the specification and practice of the utility model disclosed herein. This application is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the utility model and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the utility model being indicated by the following claims.
It will be understood that the utility model is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The scope of the utility model is limited only by the appended claims.
Claims (8)
1. A sintering furnace for the manufacture of a sintered article, said sintering furnace comprising:
the outer wall comprises three side walls which are sequentially connected, a top wall arranged above the side walls and a bottom wall arranged below the side walls, and a furnace door is hinged to each side wall;
the heat-insulating layer is arranged on the side wall, the top wall and the bottom wall;
the bright aluminum plate is arranged on the heat insulation layer;
the electric heating tubes are arranged on the three side walls and are fixedly connected with the bright aluminum plate;
the rail is arranged on the bottom wall and used for clamping the mold vehicle of the sintering part;
the U-shaped air channel is arranged above the bottom wall, the opening of the U-shaped air channel faces the furnace door, a plurality of air outlets are formed in the U-shaped air channel, and the U-shaped air channel is arranged to avoid the rail;
the air inlet of the hot air circulation unit penetrates through the top wall, the heat preservation layer and the bright aluminum plate, the air outlet of the hot air circulation unit is communicated with the U-shaped air channel, and the hot air circulation unit is opposite to the furnace door.
2. Sintering furnace for the production of plastic sintered parts according to claim 1, characterized in that said hot air circulation unit comprises:
an air inlet of the air suction duct penetrates through the top wall, the heat insulation layer and the bright aluminum plate, and an air outlet of the air suction duct is communicated with the U-shaped air duct;
the axial flow fan is arranged on the air suction duct and is positioned close to the top wall.
3. Sintering furnace for the production of sintered parts according to claim 1, characterized in that it further comprises: a mold rotating unit disposed between the bottom wall and the rail, the mold rotating unit being capable of rotating the rail.
4. Sintering furnace for the production of sintered parts according to claim 3, characterised in that said mould rotation unit comprises:
the turntable is arranged below the track and is fixedly connected with the track;
a bearing disposed within the bottom wall;
the turbine is arranged below the turntable and is fixedly connected with the inner ring of the bearing;
the worm is arranged on one side of the turbine, and spiral teeth on the worm are meshed with external teeth of the turbine;
and the power unit group is connected with the worm and enables the worm to rotate.
5. Sintering furnace for the production of sintered parts according to claim 4, characterised in that said power unit comprises:
a speed reduction motor arranged outside the sintering furnace,
one end of the transmission shaft is connected with an output shaft of the speed reducing motor through a connecting shaft sleeve, the other end of the transmission shaft penetrates through the side wall to be fixedly connected with the worm, and the transmission shaft is positioned between the U-shaped air duct and the bottom wall;
and the base is arranged below the speed reducing motor and can align the axis of the output shaft of the speed reducing motor with the axis of the worm.
6. Sintering furnace for the production of burned parts according to claim 1, characterised in that the outer wall is made of a stack of refractory bricks.
7. The sintering furnace for manufacturing the plastic-sintered parts as claimed in any one of claims 1 to 6, wherein the heat-insulating layer is made of rock wool.
8. Sintering furnace for the production of sintered parts according to any of the claims from 1 to 6, characterised in that it further comprises: and the temperature monitoring unit is used for monitoring the temperature in the sintering furnace.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122571198.7U CN216282756U (en) | 2021-10-25 | 2021-10-25 | Sintering furnace for manufacturing plastic sintering piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122571198.7U CN216282756U (en) | 2021-10-25 | 2021-10-25 | Sintering furnace for manufacturing plastic sintering piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216282756U true CN216282756U (en) | 2022-04-12 |
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ID=81073196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122571198.7U Active CN216282756U (en) | 2021-10-25 | 2021-10-25 | Sintering furnace for manufacturing plastic sintering piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216282756U (en) |
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2021
- 2021-10-25 CN CN202122571198.7U patent/CN216282756U/en active Active
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