CN210475534U

CN210475534U - Non-contact copper powder vacuum deoxidation reduction treatment device

Info

Publication number: CN210475534U
Application number: CN201921651273.7U
Authority: CN
Inventors: 峰山; 党聪; 新巴雅尔; 王俊; 刘慧敏
Original assignee: Inner Mongolia University of Technology
Current assignee: Inner Mongolia University of Technology
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-05-08
Anticipated expiration: 2029-09-30

Abstract

The utility model relates to a chemical industry equipment technical field specifically is a contactless copper powder vacuum deoxidation reduction processing apparatus, including the reduction furnace body, the reduction furnace body is equipped with the discharging pipe, reduction gas advances the pipe and presss from both sides the cover, reduction furnace body top fixed connection head, the head welding has the inlet pipe, evacuation takeover and reduction gas outlet pipe, reduction gas advances all to be equipped with the copper powder filter plate in the pipe wall of pipe and reduction gas outlet pipe, the internal (mixing) shaft that is equipped with of reduction furnace, the (mixing) shaft is first axle sleeve of fixed connection and second axle sleeve respectively, the straight leaf oar of first axle sleeve fixed connection, straight leaf oar fixed connection scraper blade, the perpendicular leaf oar of straight leaf oar fixed connection, second axle sleeve fixed connection anchor formula oar. The beneficial effects are that: the tapered convex edge design of the vertical blade paddle is beneficial to pushing away the copper powder pile, the advancing resistance of the vertical blade paddle is reduced, the copper powder can be pushed away to be fully contacted with reducing gas from bottom to top under the pushing of the vertical blade paddle, and the copper powder is prevented from caking while being fully reduced.

Description

Non-contact copper powder vacuum deoxidation reduction treatment device

Technical Field

The utility model relates to the technical field of chemical equipment, in particular to a non-contact copper powder vacuum deoxidation and reduction treatment device.

Background

Copper powder has small particles and a large specific surface area, and is easily oxidized and deteriorated in air, and therefore, drying and reduction treatment are required. At present, the drying and the reduction of copper powder are two processes, and are not carried out in the same place, so that the production operation is complicated, and the period is long. Based on the above problems, there is a need in the art for a non-contact copper powder vacuum deoxidation and reduction treatment device.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a contactless copper powder vacuum deoxidation reduction processing apparatus to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a non-contact copper powder vacuum deoxidation reduction treatment device comprises a reduction furnace body, wherein a discharge pipe and a reduction gas inlet pipe are fixedly connected to the bottom of the reduction furnace body, a jacket is welded on the outer wall of the reduction furnace body, a heat conduction oil circulation inlet pipe is fixedly connected to the bottom of the jacket, a heat conduction oil circulation outlet pipe is fixedly connected to the top of the jacket, a head is fixedly connected to the top of the reduction furnace body, a feed pipe, a vacuumizing connection pipe and a reduction gas outlet pipe are welded on the head, copper powder filter plates are arranged on the reduction gas inlet pipe and the reduction gas outlet pipe, the specifications of the reduction gas inlet pipe and the reduction gas outlet pipe are the same, a stirring shaft is arranged in the reduction furnace body and is respectively and fixedly connected with a first shaft sleeve and a second shaft sleeve, a straight blade is fixedly connected to the first shaft sleeve and is fixedly connected with a scraper plate, the, the second shaft sleeve is fixedly connected with the anchor type paddle.

Preferably, the top of the seal head is fixedly connected with a motor base, a speed reduction motor is arranged on the motor base, an output shaft of the speed reduction motor is fixedly connected with a stirring shaft through a coupler, and a mechanical seal is arranged between the stirring shaft and the seal head.

Preferably, twelve straight-blade paddles are arranged, twelve straight-blade paddles are divided into three groups which are arranged at equal intervals, and four straight-blade paddles in each group are uniformly distributed in an annular shape by taking the stirring shaft as the center.

Preferably, the apex angle α of the tapered fin of the vertical blade is 120 °.

Preferably, the copper powder filter plate is a sieve plate with phi 80 mu m holes punched on the surface and the hole spacing of 1.6mm, and the side wall of the sieve plate is provided with external threads.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses well vacuum drying and the reduction of copper powder are all in same reduction furnace body, have reduced the technology operation, have improved production efficiency, and the toper bead design of erecting the leaf oar is favorable to erecting the leaf oar and pushes away the copper powder heap, reduces the resistance that advances of erecting the leaf oar, and under the promotion of erecting the leaf oar, the copper powder can be "pushed away" and with the abundant contact of the reduction gas from bottom to top, avoids the copper powder caking when guaranteeing that the copper powder is fully reduced.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is the structural schematic diagram of the middle vertical blade paddle of the present invention.

In the figure: 1 original furnace body, 101 discharge pipe, 102 original gas inlet pipe, 2 end enclosure, 201 feed pipe, 202 vacuumizing connecting pipe, 203 original gas outlet pipe, 3 jacket, 301 heat-conducting oil circulating inlet pipe, 302 heat-conducting oil circulating outlet pipe, 4 stirring shaft, 5 first shaft sleeve, 6 second shaft sleeve, 7 straight blade paddle, 8 scraping plate, 9 vertical blade paddle, 10 anchor type paddle, 11 motor base, 12 speed reducing motor, 13 mechanical seal and 14 copper powder filter plate.

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.

Referring to fig. 1 to 2, the present invention provides a technical solution: the utility model provides a contactless copper powder vacuum deoxidation reduction processing apparatus, includes reduction furnace body 1, and reduction furnace body 1 bottom fixed connection discharging pipe 101 and reduction gas advance pipe 102, and the welding of reduction furnace body 1 outer wall has and presss from both sides cover 3, presss from both sides 3 bottom fixed connection conduction oil circulation and advances pipe 301, presss from both sides 3 top fixed connection conduction oil circulation exit tube 302 of cover. The top of the reduction furnace body 1 is fixedly connected with a seal head 2, and the seal head 2 is welded with a feed pipe 201, a vacuumizing connecting pipe 202 and a reduction gas outlet pipe 203. The top of the seal head 2 is fixedly connected with a motor base 11, the motor base 11 is provided with a speed reducing motor 12, an output shaft of the speed reducing motor 12 is fixedly connected with a stirring shaft 4 through a coupler, and a mechanical seal 13 is arranged between the stirring shaft 4 and the seal head 2. The speed reducing motor 12 is started, the speed reducing motor 12 drives the stirring shaft 4 to rotate, the stirring shaft 4 is fixedly connected with the first shaft sleeve 5 and the second shaft sleeve 6 through the set screws respectively after extending into the reduction furnace body 1, the first shaft sleeve 5 is welded with the straight blade paddles 7, twelve straight blade paddles 7 are arranged, the twelve straight blade paddles 7 are divided into three groups which are arranged at equal intervals from top to bottom, and the four straight blade paddles 7 in each group are uniformly distributed in an annular shape by taking the stirring shaft 4 as the center. The straight blade paddle 7 is fixedly connected with the scraping plate 8, and the scraping plate 8 is used for preventing copper powder from being adhered to the inner side wall of the reduction furnace body 1. The straight blade paddle 7 penetrates through and is fixedly connected with the vertical blade paddle 9, the second shaft sleeve 6 is welded with the anchor type paddle 10, and the anchor type paddle 10 is used for preventing copper powder from being accumulated on the bottom wall in the reduction furnace body 1.

As shown in figure 2, the vertical blade paddle 9 is provided with an integrally formed tapered convex rib in the rotating advancing direction, the size of the apex angle α of the tapered convex rib is one hundred twenty degrees, the tapered convex rib design of the vertical blade paddle 9 is beneficial to the vertical blade paddle 9 to push away copper powder stacks, the advancing resistance of the vertical blade paddle 9 is reduced, under the pushing of the vertical blade paddle 9, the copper powder can be pushed away and fully contacted with reducing gas from bottom to top, the copper powder is fully reduced, and the copper powder is prevented from caking at the same time.

The copper powder reduction operation is as follows: first, the vacuum connection pipe 202 is connected to an external vacuum pumping device, and the vacuum pumping device in this embodiment uses a dry screw vacuum pump rack for pumping the reduction furnace body 1 to a vacuum degree of 0.08 MPa. Then, the reduction furnace body 1 is heated to 300 ℃ by adopting heat conducting oil in the jacket 3, stirring is started, copper powder in the reduction furnace body 1 is dried, and entrained water is completely evaporated. After a period of time, the reducing gas inlet pipe 102 is opened, reducing gas (nitrogen-hydrogen mixed gas) is pumped into the reducing gas inlet pipe 102, the reducing gas is used for reducing copper oxide in the copper powder into copper simple substance, and the residual gas and water vapor after reaction are subjected to tail gas recovery treatment through the reducing gas outlet pipe 203. In the reduction process, the copper powder is not contacted with the outside atmosphere, and the reduction effect is good.

The reducing gas inlet pipe 102 and the reducing gas outlet pipe 203 are identical in specification, copper powder filter plates 14 are arranged in pipe walls of the reducing gas inlet pipe 102 and the reducing gas outlet pipe 203, the copper powder filter plates 14 are sieve plates with phi 80 mu m holes punched on the surfaces and the hole spacing of 1.6mm, external threads are arranged on the side walls of the sieve plates, the copper powder filter plates 14 are fixed in the reducing gas inlet pipe 102 and the reducing gas outlet pipe 203 respectively in a threaded connection mode, the copper powder filter plates 14 prevent copper powder from falling into the reducing gas inlet pipe 102 downwards and prevent the copper powder from being discharged out of the reducing gas outlet pipe 203 along with tail gas, and.

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

1. A non-contact copper powder vacuum deoxidation and reduction treatment device is characterized in that: the reducing furnace comprises a reducing furnace body (1), wherein a discharging pipe (101) and a reducing gas inlet pipe (102) are fixedly connected to the bottom of the reducing furnace body (1), a jacket (3) is welded to the outer wall of the reducing furnace body (1), a heat transfer oil circulation inlet pipe (301) is fixedly connected to the bottom of the jacket (3), a heat transfer oil circulation outlet pipe (302) is fixedly connected to the top of the jacket (3), a seal head (2) is fixedly connected to the top of the reducing furnace body (1), a feeding pipe (201), a vacuumizing connecting pipe (202) and a reducing gas outlet pipe (203) are welded to the seal head (2), copper powder filter plates (14) are arranged in the pipe walls of the reducing gas inlet pipe (102) and the reducing gas outlet pipe (203) in the same specification, a stirring shaft (4) is arranged in the reducing furnace body (1), the stirring shaft (4) is respectively and fixedly connected with a first shaft sleeve (5, straight leaf oar (7) fixed connection scraper blade (8), straight leaf oar (7) run through and vertical leaf oar (9) of fixed connection, vertical leaf oar (9) are equipped with integrated into one piece's toper bead in its rotatory direction of advance, second shaft cover (6) fixed connection anchor formula oar (10).

2. The device for the vacuum deoxidation and reduction treatment of copper powder without contact according to claim 1, characterized in that: head (2) top fixed connection motor cabinet (11), be equipped with gear motor (12) on motor cabinet (11), the output shaft of gear motor (12) passes through shaft coupling fixed connection (mixing) shaft (4), be equipped with mechanical seal (13) between (mixing) shaft (4) and head (2).

3. The device for the vacuum deoxidation and reduction treatment of copper powder without contact according to claim 1, characterized in that: twelve straight-blade paddles (7) are arranged, twelve straight-blade paddles (7) are divided into three groups which are arranged at equal intervals from top to bottom, and four straight-blade paddles (7) in each group are uniformly distributed in an annular shape by taking a stirring shaft (4) as the center.

4. The device for the vacuum deoxidation of copper powder according to claim 1, wherein the apex angle α of the tapered ridge of the vertical blade paddle (9) is 120 °.

5. The device for the vacuum deoxidation and reduction treatment of copper powder without contact according to claim 1, characterized in that: the copper powder filter plate (14) adopts a sieve plate with phi 80 mu m holes punched on the surface and the hole spacing of 1.6mm, and the side wall of the sieve plate is provided with external threads.