CN216845625U - Polygonal rotary oxidation furnace - Google Patents
Polygonal rotary oxidation furnace Download PDFInfo
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- CN216845625U CN216845625U CN202123303458.9U CN202123303458U CN216845625U CN 216845625 U CN216845625 U CN 216845625U CN 202123303458 U CN202123303458 U CN 202123303458U CN 216845625 U CN216845625 U CN 216845625U
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Abstract
The utility model discloses a polygonal rotary oxidation furnace, which comprises a support and a rotary furnace body arranged on the support; the rotary furnace body comprises a polygonal hearth, a material inlet and a material outlet which are arranged at one end of the polygonal hearth, and a gas inlet which is arranged at the other end of the polygonal hearth; the polygonal hearth is divided into a horizontal hearth and an inclined hearth, the inclined hearth is close to the material inlet and outlet, and the inner wall of one side of the horizontal hearth gradually narrows to the caliber of the material inlet and outlet; the longitudinal section of the inner wall of the polygonal hearth is in an equilateral hexagon or an equilateral octagon. This application is through improving the furnace structure of rotary oxidation furnace, and its inner wall cross section personally submits equilateral hexagon or equilateral octagon, sets up through the rotational speed of control furnace, furnace slope and makes the motion state of alloy powder be in the leaping down motion form of drunkenness and upset, is favorable to alloy powder thermally equivalent and fully contacts the oxidation with oxygen, has reduced oxidation temperature and oxygen pressure requirement, and the lumber recovery reaches 99%.
Description
Technical Field
The utility model relates to a silver tin oxide electrical contact processing equipment correlation technique especially relates to a polygon gyration oxidation furnace.
Background
The internal oxidation method is to prepare silver-tin alloy wires by smelting method or atomize the silver-tin alloy wires into powder, and then internally oxidize the tin into oxide particles in high-pressure oxidizing atmosphere. The internal oxidation method is the main production process of the silver tin oxide material at present, and the technical route sequentially comprises the following steps: silver ingot, tin ingot and additive elements → vacuum melting → atomization crushing → partial internal oxidation of powder → ball milling → complete internal oxidation of powder → pressing, sintering and extrusion. The internal oxidation equipment usually adopts a common air atmosphere trolley furnace, a low-temperature area and a warm-in area are arranged in the internal oxidation equipment, the step of partial internal oxidation of the powder is carried out in the low-temperature area, the step of complete internal oxidation of the powder is carried out in the warm-in area, the powder is loaded in a stainless steel plate, the thickness of the powder is 1cm-3cm, and the single-batch loading capacity is 20 kg/batch.
However, the internal oxidation using the air atmosphere car furnace has the following defects: the alloy powder is loaded by a stainless steel disc, the oxidation temperature is high, the oxidation time is long, and the oxide particles are coarse; the powder on the surface layer is oxidized before the powder on the bottom layer, so that the structure of the oxidized powder is not uniform, and when the loading thickness is too large, the powder on the bottom layer is difficult to contact with oxygen, so that the oxidized powder is not completely oxidized and is agglomerated and scrapped. The powder oxidation process is carried out by adopting an air atmosphere trolley furnace, the yield is not high, and the yield is 85%.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a polygonal rotary oxidation furnace.
The purpose of the utility model is realized by adopting the following technical scheme: a polygonal rotary oxidation furnace comprises a support and a rotary furnace body arranged on the support; the rotary furnace body comprises a polygonal hearth, a material inlet and a material outlet which are arranged at one end of the polygonal hearth, and a gas inlet which is arranged at the other end of the polygonal hearth; the polygonal hearth is divided into a horizontal section hearth and an inclined section hearth, the inclined section hearth is close to the material inlet and outlet, and the inner wall of one side of the horizontal section hearth gradually narrows towards the caliber of the material inlet and outlet; the longitudinal section of the inner wall of the polygonal hearth is in an equilateral hexagon or an equilateral octagon.
Furthermore, the polygonal rotary oxidation furnace also comprises a rotating mechanism for driving the rotary furnace body to rotate; the rotating mechanism comprises a transmission assembly, a supporting ring and a supporting wheel; the transmission assembly drives the rotary furnace body to rotate along the axial lead of the furnace body; the supporting wheels are arranged on the outer wall of the rotary furnace body, the supporting ring is installed on the support, a sliding groove is formed in the inner wall of the supporting ring, and the rotary furnace body is matched with the sliding groove through the pair of supporting wheels so that the rotary furnace body can rotate in the supporting ring under the driving of the transmission assembly.
Further, the transmission assembly comprises a rotating motor, a driving chain wheel, a driven chain wheel and a chain; the driving chain wheel is sleeved on an output shaft of the rotating motor, and the driven chain wheel is sleeved on the outer wall of an air inlet of the rotary furnace body; the chain is meshed with the driving chain wheel and the driven chain wheel.
Furthermore, the polygonal rotary oxidation furnace also comprises an angle adjusting mechanism which can change the included angle between the axial lead of the rotary furnace body and the horizontal direction.
Further, the angle adjusting mechanism comprises a pair of bearing seats and an angle adjusting motor; the rotary furnace comprises a rotary furnace body, a bearing seat, a connecting shaft, an angle adjusting motor and a support seat, wherein the side wall of the rotary furnace body is convexly provided with a pair of connecting shafts, the bearing seat is fixedly arranged on the support seat, the connecting shafts are movably arranged in the bearing seat in a penetrating mode, and the output end of the angle adjusting motor is in transmission connection with the connecting shafts.
Further, the angle adjusting mechanism comprises a pair of bearing blocks and an angle adjusting cylinder; the side wall of the rotary furnace body is convexly provided with a pair of connecting shafts, the bearing seat is fixedly arranged on the support, and the connecting shafts are movably arranged in the bearing seat in a penetrating way; the cylinder body of the angle adjusting cylinder is arranged on the support, and the telescopic rod of the angle adjusting cylinder is fixed at the feed and discharge port of the rotary furnace body.
Furthermore, a layer of heating coil is wound on the outer wall of the rotary furnace body.
Furthermore, the outer wall of the rotary furnace body is provided with an overtemperature probe.
Furthermore, a temperature control probe is arranged on the inner wall of the rotary furnace body.
Compared with the prior art, the beneficial effects of the utility model reside in that:
this application is through improving the furnace structure of rotary oxidation furnace, and its stove courage of this device adoption purpose-made rotary internal oxidation furnace is big belly structure, makes the inside low-temperature zone that does not exist of stove, and its inner wall cross section personally submits equilateral hexagon or equilateral octagon, then sets up through the rotational speed of control furnace, furnace slope and makes the motion state of alloy powder be in the motion form that falls of leaping and upset, is favorable to alloy powder thermally equivalent and fully contacts the oxidation with oxygen, has reduced oxidation temperature and oxygen pressure requirement. The alloy powder is pre-oxidized by adopting a special rotary furnace, so that powder agglomeration can be effectively reduced; compared with the traditional oxidation furnace structure, the oxidation time is shortened by more than 50 percent, and the oxidation temperature is reduced by 10 to 15 percent, thereby reducing the production cost, improving the material utilization rate and leading the yield to reach 99 percent.
Drawings
FIG. 1 is a schematic perspective view of a polygonal rotary oxidation furnace according to a preferred embodiment of the present invention;
FIG. 2 is a side view of a polygonal rotary oxidation furnace according to a preferred embodiment of the present invention;
FIG. 3 is a schematic structural view of a polygonal firebox according to a preferred embodiment of the present invention;
fig. 4 is a schematic cross-sectional view taken along line a-a of fig. 3.
In the figure: 1. a rotary furnace body; 11. a polygonal hearth; 111. a horizontal section hearth; 112. an inclined section hearth; 12. feeding and discharging ports; 13. an air inlet; 2. a support; 3. a rotation mechanism; 31. a backing ring; 32. a sliding groove; 4. a heating coil; 5. an overtemperature probe; 6. a temperature control probe.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that the embodiments or technical features described below can be arbitrarily combined to form a new embodiment without conflict.
As shown in fig. 1-4, a polygonal rotary oxidation furnace comprises a support 2, a rotary furnace body 1 mounted on the support; the rotary furnace body 1 comprises a polygonal hearth 11, a material inlet and outlet 12 arranged at one end of the polygonal hearth, and an air inlet 13 arranged at the other end of the polygonal hearth; the polygonal hearth is divided into a horizontal hearth 111 and an inclined hearth 112, the inclined hearth is close to the material inlet and outlet, and the inner wall of one side of the horizontal hearth gradually narrows towards the caliber of the material inlet and outlet; the longitudinal section of the inner wall of the polygonal hearth is in an equilateral hexagon or an equilateral octagon.
This application is through improving the furnace structure of gyration oxidation furnace, its stove courage of this device adoption purpose-made rotation internal oxidation furnace is big belly structure, make the inside low-temperature region that does not exist of stove, its inner wall cross-section personally submits equilateral hexagon or equilateral octagon, then through the rotational speed of control furnace, furnace slope sets up the motion state that makes alloy powder is in the leap and falls the motion state that falls of upset, be favorable to alloy powder thermally equivalent and with the abundant contact oxidation of oxygen, oxidation temperature and oxygen pressure requirement have been reduced. The alloy powder is pre-oxidized by adopting a special rotary furnace, so that powder agglomeration can be effectively reduced; compared with the traditional oxidation furnace structure, the oxidation time is shortened by more than 50 percent, and the oxidation temperature is reduced by 10 to 15 percent, thereby reducing the production cost and improving the material utilization rate.
As a further preferable scheme, the polygonal rotary oxidation furnace further comprises a rotating mechanism 3 for driving the rotary furnace body to rotate; the rotating mechanism comprises a transmission assembly (not shown), a backing ring 31 and a backing wheel (not shown); the transmission assembly drives the rotary furnace body to rotate along the axial lead of the furnace body; the riding wheels are arranged on the outer wall of the rotary furnace body, the riding ring is arranged on the support, the inner wall of the riding ring is provided with a sliding groove 32, and the rotary furnace body is matched with the sliding groove through a pair of riding wheels so as to realize that the rotary furnace body rotates in the riding ring under the driving of the transmission assembly. The transmission assembly comprises a rotating motor, a driving chain wheel, a driven chain wheel and a chain; the driving chain wheel is sleeved on an output shaft of the rotating motor, and the driven chain wheel is sleeved on the outer wall of an air inlet of the rotary furnace body; the chain is meshed with the driving chain wheel and the driven chain wheel.
As a further preferable scheme, the polygonal rotary oxidation furnace further comprises an angle adjusting mechanism (not shown) which can change the included angle between the axis of the rotary furnace body and the horizontal direction. The angle adjusting mechanism is arranged on the polygonal rotary oxidation furnace, so that the polygonal rotary oxidation furnace can be inclined, and loading and unloading are convenient. This angle adjustment mechanism has two kinds of regulation structures, as follows respectively:
the first angle adjustment mechanism is as follows: the angle adjusting mechanism comprises a pair of bearing seats and an angle adjusting motor; the rotary furnace comprises a rotary furnace body, a bearing seat, a connecting shaft, an angle adjusting motor and a support seat, wherein the side wall of the rotary furnace body is convexly provided with a pair of connecting shafts, the bearing seat is fixedly arranged on the support seat, the connecting shafts are movably arranged in the bearing seat in a penetrating mode, and the output end of the angle adjusting motor is in transmission connection with the connecting shafts.
The second angle adjustment mechanism is as follows: the angle adjusting mechanism comprises a pair of bearing blocks and an angle adjusting cylinder; the side wall of the rotary furnace body is convexly provided with a pair of connecting shafts, the bearing seat is fixedly arranged on the support, and the connecting shafts are movably arranged in the bearing seat in a penetrating way; the cylinder body of the angle adjusting cylinder is arranged on the support, and the telescopic rod of the angle adjusting cylinder is fixed at the feed and discharge port of the rotary furnace body.
More preferably, a layer of heating coil 4 is wound on the outer wall of the rotary furnace body. The heating coil is arranged for providing heat energy for the rotary furnace body.
As a further preferable scheme, the outer wall of the rotary furnace body is provided with an overtemperature probe 5. The overtemperature probe is used for controlling the heating temperature and keeping the alloy powder to be uniformly heated.
As a further preferred scheme, the inner wall of the rotary furnace body is provided with a temperature control probe 6. The temperature control probe is arranged to further adjust the heating temperature, so that the alloy powder is further guaranteed to be uniformly heated.
The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.
Claims (9)
1. A polygonal rotary oxidation furnace is characterized by comprising a support and a rotary furnace body arranged on the support; the rotary furnace body comprises a polygonal hearth, a material inlet and a material outlet which are arranged at one end of the polygonal hearth, and a gas inlet which is arranged at the other end of the polygonal hearth; the polygonal hearth is divided into a horizontal section hearth and an inclined section hearth, the inclined section hearth is close to the material inlet and outlet, and the inner wall of one side of the horizontal section hearth gradually narrows towards the caliber of the material inlet and outlet; the longitudinal section of the inner wall of the polygonal hearth is in an equilateral hexagon or an equilateral octagon.
2. The polygonal rotary oxidation furnace according to claim 1, further comprising a rotation mechanism for driving the rotary furnace body to rotate; the rotating mechanism comprises a transmission assembly, a supporting ring and a supporting wheel; the transmission assembly drives the rotary furnace body to rotate along the axial lead of the furnace body; the supporting wheels are arranged on the outer wall of the rotary furnace body, the supporting ring is installed on the support, a sliding groove is formed in the inner wall of the supporting ring, and the rotary furnace body is matched with the sliding groove through the pair of supporting wheels so that the rotary furnace body can rotate in the supporting ring under the driving of the transmission assembly.
3. The polygonal rotary oxidation furnace of claim 2, wherein the driving assembly comprises a rotary motor, a driving sprocket, a driven sprocket, a chain; the driving chain wheel is sleeved on an output shaft of the rotating motor, and the driven chain wheel is sleeved on the outer wall of an air inlet of the rotary furnace body; the chain is meshed with the driving chain wheel and the driven chain wheel.
4. The polygonal rotary oxidation furnace according to claim 1, further comprising an angle adjusting mechanism for changing an angle between the axis of the rotary furnace body and the horizontal direction.
5. The polygonal rotary oxidation furnace of claim 4, wherein the angle adjusting mechanism comprises a pair of bearing blocks and an angle adjusting motor; the rotary furnace comprises a rotary furnace body, a bearing seat, a connecting shaft, an angle adjusting motor and a support seat, wherein the side wall of the rotary furnace body is convexly provided with a pair of connecting shafts, the bearing seat is fixedly arranged on the support seat, the connecting shafts are movably arranged in the bearing seat in a penetrating mode, and the output end of the angle adjusting motor is in transmission connection with the connecting shafts.
6. The polygonal rotary oxidation furnace according to claim 4, wherein the angle adjusting mechanism comprises a pair of bearing blocks and an angle adjusting cylinder; the side wall of the rotary furnace body is convexly provided with a pair of connecting shafts, the bearing seat is fixedly arranged on the support, and the connecting shafts are movably arranged in the bearing seat in a penetrating way; the cylinder body of the angle adjusting cylinder is arranged on the support, and the telescopic rod of the angle adjusting cylinder is fixed at the feed and discharge port of the rotary furnace body.
7. The polygonal rotary oxidation furnace according to claim 1, wherein a heating coil is wound around an outer wall of the rotary furnace body.
8. The polygonal rotary oxidation furnace according to claim 1, wherein an overtemperature probe is installed on an outer wall of the rotary furnace body.
9. The polygonal rotary oxidation furnace according to claim 1, wherein a temperature control probe is installed on an inner wall of the rotary furnace body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123303458.9U CN216845625U (en) | 2021-12-24 | 2021-12-24 | Polygonal rotary oxidation furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123303458.9U CN216845625U (en) | 2021-12-24 | 2021-12-24 | Polygonal rotary oxidation furnace |
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| Publication Number | Publication Date |
|---|---|
| CN216845625U true CN216845625U (en) | 2022-06-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123303458.9U Active CN216845625U (en) | 2021-12-24 | 2021-12-24 | Polygonal rotary oxidation furnace |
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| CN (1) | CN216845625U (en) |
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2021
- 2021-12-24 CN CN202123303458.9U patent/CN216845625U/en active Active
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