CN216192613U

CN216192613U - Split type reducing furnace for zirconium sponge or hafnium sponge

Info

Publication number: CN216192613U
Application number: CN202122808340.5U
Authority: CN
Inventors: 钟东明; 刘菁; 郭峰; 谭熙文; 钟彦明; 赖树政
Original assignee: China Nuclear Jinghuan Zirconium Industry Co ltd
Current assignee: China Nuclear Jinghuan Zirconium Industry Co ltd
Priority date: 2021-11-16
Filing date: 2021-11-16
Publication date: 2022-04-05
Anticipated expiration: 2031-11-16

Abstract

The utility model discloses a split type reduction furnace for zirconium sponge or hafnium sponge, which comprises a magnesium ingot melting furnace and a hafnium tetrachloride sublimating furnace, wherein the top ends of the magnesium ingot melting furnace and the hafnium tetrachloride sublimating furnace are respectively provided with a second furnace cover and a first furnace cover, the first furnace cover and the second furnace cover are communicated and connected through a communicating pipe, and an inner furnace is arranged in the magnesium ingot melting furnace. According to the utility model, the heating pipe, the heat conduction pipe and the heat conduction cavity are matched for use, so that the utilization rate of heat is conveniently improved, the heat generated by the reduction reaction between HfCl4 and the magnesium solution flows into the air guide pipe through the air guide cavity, then enters the heating pipe through the air guide pipe, and then the heat in the heating pipe heats the gas continuously sublimed in the communicating pipe, so that the heated gas enters the magnesium ingot melting furnace again through the communicating pipe for reaction, and the working efficiency is improved.

Description

Split type reducing furnace for zirconium sponge or hafnium sponge

Technical Field

The utility model relates to the technical field of reduction furnaces, in particular to a split type reduction furnace for zirconium sponge or hafnium sponge.

Background

In recent years, the new material industry has been rapidly developed, and hafnium has been widely applied to the fields of aerospace, nuclear power reactors, medical treatment, petrochemical industry and the like. The zirconium hafnium material is a core material in nuclear energy industry, is mainly used as a sheath material of nuclear fuel and a speed reduction and control material of a nuclear reactor, has increasing demand and considerable development prospect.

The prior art has the following problems:

in order to improve the convenience of work, the existing reduction furnaces are all split type and are connected by a communicating pipe, the reduction reaction of HfCl4 and magnesium is a violent exothermic reaction, and the heat can be directly discharged outside under normal conditions, so that the waste of resources can be caused.

Therefore, a split reduction furnace for zirconium sponge or hafnium sponge is provided to solve the disadvantages.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art and provides a split type reduction furnace for zirconium sponge or hafnium sponge.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a split type reduction furnace of zirconium sponge or hafnium sponge, includes magnesium ingot melting furnace and hafnium tetrachloride sublimation stove, magnesium ingot melting furnace and hafnium tetrachloride sublimation stove top are provided with second bell and first bell respectively, through communicating pipe through connection between first bell and the second bell, the inside interior stove that is provided with of magnesium ingot melting furnace, be formed with the heat conduction chamber between interior stove and the magnesium ingot melting furnace, heat conduction chamber surface through connection has the air duct, the air duct other end through connection has the heating pipe, air duct surface mounting has the third valve, the heating pipe parcel is on communicating pipe outside surface, communicating pipe both ends are provided with first valve and second valve respectively.

Preferably, the heating pipe comprises a first pipe body and a second pipe body, connecting plates are arranged at two ends of the first pipe body and two ends of the second pipe body, mounting holes are formed in the surfaces of the connecting plates, and the first pipe body and the second pipe body are connected through the mounting holes through fasteners.

Preferably, the inner furnace is internally provided with a partition plate, a sealing cover is arranged on one side, located on the partition plate, of the top of the inner furnace, an air inlet is formed in the surface of the top of the sealing cover, and a feeding hole is formed in the other side, located on the partition plate, of the top of the inner furnace.

Preferably, first bell top surface is provided with first feeder hopper, second bell top surface is provided with the second feeder hopper.

Preferably, a heating mechanism is installed inside the inner furnace.

Preferably, a sealing gasket is arranged at the contact position of the heating pipe and the communicating pipe.

Preferably, the surface of the inner wall of the second pipe body is provided with a heating wire.

Compared with the prior art, the utility model has the beneficial effects that;

(1) the utility model is convenient to improve the utilization rate of heat by arranging the heating pipe, the heat conduction pipe and the heat conduction cavity for use, so that the heat generated by the reduction reaction between HfCl4 and magnesium solution flows into the air guide pipe through the air guide cavity, then enters the heating pipe through the air guide pipe, then the heat in the heating pipe heats the gas continuously sublimed in the communicating pipe, the heated gas enters the magnesium ingot melting furnace through the communicating pipe again for reaction, thereby improving the working efficiency of the magnesium ingot melting furnace, the mode is simple to operate, the energy can be recycled, secondly, by arranging the partition plate, the top end of the partition plate is sealed with the sealing cover of the inner furnace, a gap is arranged between the lower end of the partition plate and the bottom end of the inner furnace, so that the sublimed gas enters the inner furnace through the air inlet during working, and the magnesium falls into the other side of the inner furnace through the feed inlet, thereby avoiding the contact of the sublimed gas and the magnesium block to generate gas-gas reaction to generate low-valence hafnium black powder.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments will be briefly described below.

FIG. 1 is a schematic structural diagram of a split type reduction furnace for zirconium sponge or hafnium sponge according to the present invention;

FIG. 2 is a schematic view of a split type reducing furnace heating pipe of zirconium sponge or hafnium sponge provided by the present invention;

FIG. 3 is a schematic view of a second tube of a split type reduction furnace with zirconium sponge or hafnium sponge according to the present invention;

fig. 4 is a schematic view of a partition board of a split type reduction furnace for zirconium sponge or hafnium sponge according to the present invention.

Illustration of the drawings:

1. a magnesium ingot melting furnace; 2. an inner furnace; 3. a heat conducting cavity; 4. a heating mechanism; 5. a partition plate; 6. a first furnace cover; 7. a first feed hopper; 8. a first valve; 9. a third valve; 10. an air duct; 11. heating a tube; 12. a communicating pipe; 13. a second valve; 14. a second feed hopper; 15. a second furnace cover; 16. a hafnium tetrachloride sublimation furnace; 17. a first pipe body; 18. a second tube body; 19. a connecting plate; 20. a fastener; 21. an air inlet; 22. a sealing cover; 23. a feed inlet; 24. a gasket; 25. heating wires; 26. and (7) installing holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

Referring to fig. 1-4, a split-type reduction furnace for zirconium sponge or hafnium sponge comprises a magnesium ingot melting furnace 1 and a hafnium tetrachloride sublimation furnace 16, wherein a second furnace cover 15 and a first furnace cover 6 are respectively arranged at the top ends of the magnesium ingot melting furnace 1 and the hafnium tetrachloride sublimation furnace 16, the first furnace cover 6 and the second furnace cover 15 are connected through a communicating pipe 12, an inner furnace 2 is arranged inside the magnesium ingot melting furnace 1, a heat conducting cavity 3 is formed between the inner furnace 2 and the magnesium ingot melting furnace 1, a gas guiding pipe 10 is connected on the surface of the heat conducting cavity 3 in a through manner, a heating pipe 11 is connected at the other end of the gas guiding pipe 10 in a through manner, a third valve 9 is arranged on the surface of the gas guiding pipe 10, the heating pipe 11 is wrapped on the outer side surface of the communicating pipe 12, a first valve 8 and a second valve 13 are respectively arranged at two ends of the communicating pipe 12, the heating pipe 11 is composed of a first pipe body 17 and a second pipe body 18, the heating pipe comprises a first pipe body 17, a second pipe body 18 and a heating pipe 11, wherein connecting plates 19 are arranged at two ends of the first pipe body 17 and the second pipe body 18, mounting holes 26 are formed in the surfaces of the connecting plates 19, the first pipe body 17 and the second pipe body 18 are connected through the mounting holes 26 through fasteners 20, and sealing gaskets 24 are arranged at the contact positions of the heating pipe 11 and the communicating pipe 12.

In this embodiment: through setting up heating pipe 11, the heat pipe, the cooperation of heat conduction chamber 3 is used, be convenient for improve thermal utilization ratio, make the heat that the reduction reaction that takes place at HfCl4 and magnesium solution produced flow into inside air duct 10 through the air duct chamber, later rethread air duct 10 enters into inside heating pipe 11, then the heat of heating pipe 11 inside heats the gas that continues to communicating pipe 12 inside sublimation, thereby make the gas of heating pass through communicating pipe 12 reentrant magnesium ingot melting furnace 1 inside and react, thereby improve its work efficiency, this mode easy operation, be convenient for the reuse to the energy.

Specifically, the inside baffle 5 that is provided with of

interior stove

2, 2 tops of interior stove are located baffle 5 one side and are provided with sealed lid 22, air inlet 21 has been seted up on sealed lid 22 top surface, 2 tops of interior stove are located baffle 5 opposite side and are provided with feed inlet 23.

In this embodiment: through setting up baffle 5, wherein 5 tops of baffle and the sealed lid 22 of interior stove 2 are sealed, 5 low sides of baffle have the space with interior stove 2 bottoms to inside making sublimed gas enter into interior stove 2 through air inlet 21 at the during operation, thereby magnesium feed inlet 23 falls into interior stove 2 opposite sides, thereby avoid sublimed gas and magnesium piece contact to take place the gas reaction and generate low price hafnium black powder.

Specifically, a first feeding hopper 7 is arranged on the top surface of the first furnace cover 6, and a second feeding hopper 14 is arranged on the top surface of the second furnace cover 15.

In this embodiment: by providing the first feed hopper 7 and the second feed hopper 14, the input of the material is facilitated.

Specifically, the heating mechanism 4 is installed inside the inner furnace 2, and the heating wire 25 is installed on the surface of the inner wall of the second pipe 18.

In this embodiment: the heating mechanism 4 is arranged to facilitate heating of the inner furnace 2, and a control circuit of the heating mechanism 4 can be realized through simple programming of a person skilled in the art, belongs to the common knowledge in the field, is only used without modification, so that the detailed description of a control mode and circuit connection is omitted.

The working principle is as follows: so that the heat generated by the reduction reaction between HfCl4 and the magnesium solution flows into the airway tube 10 through the airway cavity, and then into the heating tube 11 through the airway tube 10, the heat inside the heating pipe 11 then heats the gas that continues to sublimate inside the communicating pipe 12, thereby leading the heated gas to enter the magnesium ingot melting furnace 1 again through the communicating pipe 12 for reaction, further improving the working efficiency, having simple operation and convenient recycling of energy, secondly, by arranging the baffle plate 5, wherein the top end of the baffle plate 5 is sealed with the sealing cover 22 of the inner furnace 2, the lower end of the baffle plate 5 is provided with a gap with the bottom end of the inner furnace 2, so that the sublimated gas enters the inner furnace 2 through the gas inlet 21 during operation, and the magnesium falls into the other side of the inner furnace 2 through the feed inlet 23, thereby avoiding the contact of the sublimated gas and the magnesium block, and generating gas-gas reaction to generate low-price hafnium black powder.

It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the utility model and are not to be construed as limiting the utility model. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.

Claims

1. A split type reduction furnace for zirconium sponge or hafnium sponge comprises a magnesium ingot melting furnace (1) and a hafnium tetrachloride sublimation furnace (16), and is characterized in that the top ends of the magnesium ingot melting furnace (1) and the hafnium tetrachloride sublimation furnace (16) are respectively provided with a second furnace cover (15) and a first furnace cover (6), the first furnace cover (6) and the second furnace cover (15) are communicated and connected through a communicating pipe (12), an inner furnace (2) is arranged inside the magnesium ingot melting furnace (1), a heat conducting cavity (3) is formed between the inner furnace (2) and the magnesium ingot melting furnace (1), the surface of the heat conducting cavity (3) is communicated and connected with an air guide pipe (10), the other end of the air guide pipe (10) is communicated and connected with a heating pipe (11), a third valve (9) is arranged on the surface of the air guide pipe (10), and the heating pipe (11) is wrapped on the outer side surface of the communicating pipe (12), and a first valve (8) and a second valve (13) are respectively arranged at two ends of the communicating pipe (12).

2. The split type reduction furnace for zirconium sponge or hafnium sponge according to claim 1, wherein the heating pipe (11) is composed of a first pipe body (17) and a second pipe body (18), two ends of the first pipe body (17) and the second pipe body (18) are provided with connecting plates (19), the surface of each connecting plate (19) is provided with a mounting hole (26), and the first pipe body (17) and the second pipe body (18) are connected through the mounting holes (26) through fasteners (20).

3. The split type reduction furnace for zirconium sponge or hafnium sponge according to claim 1, wherein a partition plate (5) is arranged inside the inner furnace (2), a sealing cover (22) is arranged on one side of the partition plate (5) at the top of the inner furnace (2), an air inlet (21) is arranged on the surface of the top of the sealing cover (22), and a feeding hole (23) is arranged on the other side of the partition plate (5) at the top of the inner furnace (2).

4. The split type reduction furnace for zirconium sponge or hafnium sponge according to claim 1, wherein a first feeding hopper (7) is disposed on a top surface of the first furnace cover (6), and a second feeding hopper (14) is disposed on a top surface of the second furnace cover (15).

5. The split type reduction furnace for zirconium sponge or hafnium sponge according to claim 1, wherein the inner furnace (2) is internally provided with a heating mechanism (4).

6. The split type reduction furnace for zirconium sponge or hafnium sponge according to claim 1, wherein a sealing gasket (24) is arranged at the contact position of the heating pipe (11) and the communicating pipe (12).

7. The split type reduction furnace for zirconium sponge or hafnium sponge according to claim 2, wherein the inner wall surface of the second pipe body (18) is provided with heating wires (25).