CN207779097U - A kind of reduction rotary furnace - Google Patents

A kind of reduction rotary furnace Download PDF

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Publication number
CN207779097U
CN207779097U CN201820087191.3U CN201820087191U CN207779097U CN 207779097 U CN207779097 U CN 207779097U CN 201820087191 U CN201820087191 U CN 201820087191U CN 207779097 U CN207779097 U CN 207779097U
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CN
China
Prior art keywords
furnace
tube
furnace tube
boiler
feed box
Prior art date
Application number
CN201820087191.3U
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Chinese (zh)
Inventor
肖小兵
钟兰祥
黄健
刘史丁
Original Assignee
赣州力信达冶金科技有限公司
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Application filed by 赣州力信达冶金科技有限公司 filed Critical 赣州力信达冶金科技有限公司
Priority to CN201820087191.3U priority Critical patent/CN207779097U/en
Application granted granted Critical
Publication of CN207779097U publication Critical patent/CN207779097U/en

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Abstract

The utility model provides a kind of reduction rotary furnace, belongs to metal smelt rotary furnace field, including furnace tube and boiler tube, heating coil is equipped in furnace tube;Boiler tube is by motor drive and horizontally disposed through the side of furnace tube along the central axes of furnace tube, and boiler tube is additionally provided with speed reducer close to one end of motor.Boiler tube is located at one end inside furnace tube and is equipped with multiple paddles, and paddle tail portion is equipped with wing plate compatible with furnace tube inner wall shape, and furnace tube is equipped with feed hopper, and furnace tube tail portion is equipped with feed box, discharge port is equipped with below feed box.Furnace tube is equipped with three groups of temperature probes, and top is equipped with exhaust pipe, is equipped with air inlet pipe close to one side bottom of feed hopper, boiler tube, feed hopper and feed box are connected by dynamic sealing device with furnace tube.The rotary furnace air-tightness is good, can effectively prevent reaction gas spilling, and the friction of metal powder and boiler tube is small, is not easy to tie kiln ring formation, high degree of automation, service life life length.

Description

A kind of reduction rotary furnace
Technical field
The utility model is related to metal smelt rotary furnace fields, more particularly to a kind of reduction rotary furnace.
Background technology
During powder metallurgy sintered, for ensure sintered products quality, it is metal powder sintered it is previous as will to its also Original, for reducing the oxygen content in metal powder.Usually using reduction rotary furnace, structure includes mainly for the reduction of metal powder Turn round furnace body, feeding equipment and material collecting device.Rotary furnace can realize that wholegrain grade roasts, but calcination temperature is not easy to accurately control, And it is susceptible to knot kiln ring formation, cause encephalic interfacial agents to be gradually reduced, the thermal efficiency reduces, and production capacity is gradually reduced.In addition, general The feeding equipment and material collecting device and rotary furnace furnace sealing of rotary furnace leakproofness are bad, be easy to cause gas leakage, Er Qie In the rotary furnace course of work, metal powder can cause boiler tube wear with boiler tube friction, reduce the service life of reduction furnace.
Utility model content
In order to overcome the deficiencies of existing technologies, the technical problem to be solved by the utility model is to propose that one kind reverts back Converter, air-tightness is good, and reaction gas is effectively prevent to overflow, and the friction of metal powder and boiler tube is small, is not easy to tie kiln ring formation, from Dynamicization degree is high, service life life length.
For this purpose, the utility model uses following technical scheme:
The utility model provides a kind of reduction rotary furnace, including furnace tube and boiler tube, and the furnace tube is fixed on two fixations On pedestal, heating coil is equipped in the furnace tube;The boiler tube is horizontally disposed along the central axes of the furnace tube and runs through the stove The side of cylinder, one end that the boiler tube is located at outside the furnace tube are connected with speed reducer, and the side of the speed reducer is connected with motor, The boiler tube is connected by dynamic sealing device with the furnace tube;
The boiler tube inside the furnace tube is equipped with multiple paddles, and the paddle tail portion is equipped with wing plate, institute It states wing plate to be adapted with the furnace tube inner wall shape, the furnace tube is equipped with feed hopper, institute close to a side roof part of the motor It states feed hopper to be connected to the furnace tube by the dynamic sealing device, the one end of the furnace tube far from the motor is equipped with discharging Case, the feed box are connected to by the dynamic sealing device with the furnace tube, and the feed box bottom is equipped with discharge port;The stove Three groups of temperature probes are equidistantly equipped on cylinder, the temperature probe is put in through the furnace tube shell inside the furnace tube, the stove Cylinder top is equipped with exhaust pipe, and the exhaust pipe is connected to the furnace tube, and the furnace tube is equipped with close to one side bottom of the feed hopper Air inlet pipe, the air inlet pipe are connected to the furnace tube.
In the utility model preferably technical solution, the maximum distance of the wing plate and the furnace tube inner wall is less than 1cm.
In the utility model preferably technical solution, the furnace tube, the paddle and the wing plate are resistance to by hard High-temperature alloy steel is made.
In the utility model preferably technical solution, the furnace tube is equipped with blowdown close to the bottom of the feed box side Mouthful.
In the utility model preferably technical solution, flow-rate adjustment is equipped at the feed hopper and the feed box Valve.
In the utility model preferably technical solution, the exhaust pipe is equipped with exhaust purifier.
In the utility model preferably technical solution, the furnace tube outer wall is covered with thermal insulation material.
In the utility model preferably technical solution, hoisting screw is equipped at the top of the furnace tube.
The beneficial effects of the utility model are:
A kind of reduction rotary furnace provided by the utility model, feed hopper, feed box and boiler tube pass through dynamic sealing device It is connect with furnace tube, boiler tube is located at one end in furnace tube and is equipped with paddle and wing plate, has air-tightness good, can effectively prevent reaction The friction of gas overflowing, metal powder and boiler tube is small, is not easy to tie kiln ring formation, high degree of automation, service life orders the advantages that long.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram for reduction rotary furnace that specific embodiment of the present invention provides.
In figure:
1, motor;3, speed reducer;4, feed hopper;5, boiler tube;6, furnace tube;7, exhaust purifier;8, feed box;9, fixed Pedestal;10, dynamic sealing device;11, thermal insulation material;51, paddle;52, wing plate;61, heating coil;62, temperature probe;63、 Hoisting screw;64, exhaust pipe;65, sewage draining exit;66, air inlet pipe;81, discharge port;82, flow control valve.
Specific implementation mode
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, a kind of reduction rotary furnace is provided in the present embodiment, including furnace tube 6 and boiler tube 5, the furnace tube 6 are solid It is scheduled on two firm bankings 9, heating coil 61 is equipped in the furnace tube 6;Central axes water of the boiler tube 5 along the furnace tube 6 Flat setting and the side through the furnace tube 6, one end that the boiler tube 5 is located at outside the furnace tube 6 is connected with speed reducer 3, described The side of speed reducer 3 is connected with motor 1, and the boiler tube 5 is connected by dynamic sealing device 10 with the furnace tube 6;
The boiler tube 5 inside the furnace tube 6 is equipped with multiple paddles 51, and 51 tail portion of the paddle is equipped with the wing Plate 52, the wing plate 52 are adapted with 6 inner wall shape of the furnace tube, and the furnace tube 6 is set close to a side roof part of the motor 1 There are feed hopper 4, the feed hopper 4 to be connected to the furnace tube 6 by the dynamic sealing device 10, the furnace tube 6 is far from the electricity One end of motivation 1 is equipped with feed box 8, and the feed box 8 is connected to by the dynamic sealing device 10 with the furnace tube 6, it is described go out 8 bottom of hopper is equipped with discharge port 81;Three groups of temperature probes 62 are equidistantly equipped in the furnace tube 6, the temperature probe 62 runs through institute It states 6 shell of furnace tube to put in inside the furnace tube 6,6 top of the furnace tube is equipped with exhaust pipe 64, the exhaust pipe 64 and the furnace tube 6 connections, the furnace tube 6 are equipped with air inlet pipe 66 close to 4 one side bottom of the feed hopper, and the air inlet pipe 66 connects with the furnace tube 6 It is logical.
A kind of above-mentioned reduction rotary furnace, the feed hopper 4, the feed box 8 and the boiler tube 4 are by described dynamic Sealing device 10 is connect with the furnace tube 6, and the boiler tube 5 is located at one end in the furnace tube 6 and is equipped with the paddle 51 and institute Wing plate 52 is stated, which has air-tightness good, can effectively prevent reaction gas spilling, the friction of metal powder and boiler tube It is small, it is not easy to tie kiln ring formation, high degree of automation, service life orders the advantages that long.
More specifically, when metalliferous mineral powder enters from the feed hopper 4 inside the furnace tube 6, startup power supply, the stove Cylinder 6 heats internal metal powder by the heating coil 61, and reducibility gas enters the furnace tube 6 from the air inlet pipe 66 With metal powder reduction reaction occurs for inside.Metal powder is inside the furnace tube 6, in the paddle 51 and the wing plate Under the action of 52, be slowly sent in the feed box 8 of 6 tail portion of the furnace tube, the metal powder after being reduced from it is described go out It is discharged in material mouth 81.The dynamic sealing device 10 ensure that the feed hopper 4, the boiler tube 5 and the feed box with it is described Leakproofness between furnace tube 6 is good, and reaction gas is made to be not easy to overflow;And the paddle 51 and the wing plate 52 make powder fully with Reducing gas haptoreaction, and friction of the metal powder to the boiler tube 5 and with 6 inner wall of the furnace tube can be reduced, can also it prevent Kiln ring formation is only tied, the service life of rotary furnace is improved.
Further, the wing plate 52 and the maximum distance of 6 inner wall of the furnace tube are less than 1cm;The wing plate 52 and described Distance between 6 inner wall of furnace tube can guarantee the stirring action to metal powder of the wing plate 52, effectively prevent knot kiln ring formation.
Further, the furnace tube 6, the paddle 51 and the wing plate 52 are made of hard refractory steel alloy; Hard refractory steel alloy can effectively improve the service life of the rotary furnace.
Further, the furnace tube 6 is equipped with sewage draining exit 65 close to the bottom of 8 side of the feed box;Staff can lead to Cross 65 periodic cleaning of sewage draining exit rotary furnace inside dirt.
Further, it is equipped with flow control valve 82 at the feed hopper 4 and the feed box 8;The flow control valve 82 can control the quantity of charging and discharging, be conducive to the utilization rate for the reducing gas for improving the rotary furnace.
Further, the exhaust pipe 64 is equipped with exhaust purifier 7;The exhaust purifier 7 can purify the rotary furnace The tail gas of discharge, reduces environmental pollution.
Further, 6 outer wall of the furnace tube is covered with thermal insulation material 11;The thermal insulation material 11 can reduce the rotary furnace Heat loss reduces energy consumption.
Further, 6 top of the furnace tube is equipped with hoisting screw 63;The hoisting screw 63 is fixed carrying, install this It is provided conveniently for staff in rotary furnace.
The utility model is described with reference to the preferred embodiments, and those skilled in the art know, is not departing from this reality In the case of with novel spirit and scope, various changes or equivalence replacement can be carried out to these features and embodiment.This reality It is not limited to the particular embodiment disclosed with novel, other embodiments fallen into claims hereof all belong to In the range of the utility model protection.

Claims (8)

1. a kind of reduction rotary furnace, it is characterised in that:
Including furnace tube (6) and boiler tube (5), the furnace tube (6) is fixed on two firm bankings (9), is equipped in the furnace tube (6) Heating coil (61);The boiler tube (5) horizontally disposed and through the furnace tube (6) side along the central axes of the furnace tube (6), The boiler tube (5) is located at the one end of the furnace tube (6) outside and is connected with speed reducer (3), and the side of the speed reducer (3) is connected with electronic Machine (1), the boiler tube (5) are connected by dynamic sealing device (10) with the furnace tube (6);
The boiler tube (5) internal positioned at the furnace tube (6) is equipped with multiple paddles (51), and paddle (51) tail portion is set There are wing plate (52), the wing plate (52) to be adapted with the furnace tube (6) inner wall shape, the furnace tube (6) is close to the motor (1) a side roof part is equipped with feed hopper (4), and the feed hopper (4) is connected by the dynamic sealing device (10) and the furnace tube (6) Logical, the one end of the furnace tube (6) far from the motor (1) is equipped with feed box (8), and the feed box (8) passes through described dynamic close Seal apparatus (10) is connected to the furnace tube (6), and feed box (8) bottom is equipped with discharge port (81);It is equidistant on the furnace tube (6) Equipped with three groups of temperature probes (62), the temperature probe (62) puts in the furnace tube (6) inside through the furnace tube (6) shell, Exhaust pipe (64) is equipped at the top of the furnace tube (6), the exhaust pipe (64) is connected to the furnace tube (6), and the furnace tube (6) is close (4) one side bottom of the feed hopper is equipped with air inlet pipe (66), and the air inlet pipe (66) is connected to the furnace tube (6).
2. a kind of reduction rotary furnace according to claim 1, it is characterised in that:
The wing plate (52) and the maximum distance of the furnace tube (6) inner wall are less than 1cm.
3. a kind of reduction rotary furnace according to claim 1, it is characterised in that:
The furnace tube (6), the paddle (51) and the wing plate (52) are made of hard refractory steel alloy.
4. a kind of reduction rotary furnace according to claim 1, it is characterised in that:
The furnace tube (6) is equipped with sewage draining exit (65) close to the bottom of the feed box (8) side.
5. a kind of reduction rotary furnace according to claim 1, it is characterised in that:
It is equipped with flow control valve (82) at the feed hopper (4) and the feed box (8).
6. a kind of reduction rotary furnace according to claim 1, it is characterised in that:
The exhaust pipe (64) is equipped with exhaust purifier (7).
7. a kind of reduction rotary furnace according to claim 1, it is characterised in that:
Furnace tube (6) outer wall is covered with thermal insulation material (11).
8. a kind of reduction rotary furnace according to claim 1, it is characterised in that:
Hoisting screw (63) is equipped at the top of the furnace tube (6).
CN201820087191.3U 2018-01-19 2018-01-19 A kind of reduction rotary furnace CN207779097U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820087191.3U CN207779097U (en) 2018-01-19 2018-01-19 A kind of reduction rotary furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820087191.3U CN207779097U (en) 2018-01-19 2018-01-19 A kind of reduction rotary furnace

Publications (1)

Publication Number Publication Date
CN207779097U true CN207779097U (en) 2018-08-28

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201820087191.3U CN207779097U (en) 2018-01-19 2018-01-19 A kind of reduction rotary furnace

Country Status (1)

Country Link
CN (1) CN207779097U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110779324A (en) * 2019-11-14 2020-02-11 徐州曹氏化工机械制造有限公司 High-temperature rotary furnace with double-layer sleeve structure
CN111561821A (en) * 2020-04-29 2020-08-21 北京科技大学 Heating device and method for preparing diffusion alloy powder for detachable tube furnace

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110779324A (en) * 2019-11-14 2020-02-11 徐州曹氏化工机械制造有限公司 High-temperature rotary furnace with double-layer sleeve structure
CN111561821A (en) * 2020-04-29 2020-08-21 北京科技大学 Heating device and method for preparing diffusion alloy powder for detachable tube furnace

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