CN210755017U

CN210755017U - Traction type crystallizer for producing zinc and zinc alloy rods

Info

Publication number: CN210755017U
Application number: CN201920101562.3U
Authority: CN
Inventors: 张小龙; 沈铁军; 张锋; 董光明; 董建光
Original assignee: SHAOXING TIANLONG TIN MATERIALS CO Ltd
Current assignee: SHAOXING TIANLONG TIN MATERIALS CO Ltd
Priority date: 2018-08-20
Filing date: 2019-01-22
Publication date: 2020-06-16
Anticipated expiration: 2029-01-22

Abstract

The utility model relates to a production of zinc and zinc alloy pole is with towed crystallizer for production zinc and zinc alloy pole, it includes the body, and this body includes inner wall and outer wall, be equipped with water-cooling channel between inner wall and the outer wall, and be equipped with crystallization chamber and cooling chamber in the inner wall, zinc alloy liquid is drawn forth the crystallizer after further cooling down through the cooling chamber by liquid phase transition solid phase in the crystallization chamber mutually, the embedded graphite pipe that prevents zinc and zinc alloy liquid corrosion its chamber wall of installing of crystallization chamber, just the outside department that is located graphite pipe on the chamber wall of crystallization chamber is provided with the immersion oil groove to graphite pipe immersion oil in order to reduce with solid phase zinc alloy friction power within a definite time. The utility model discloses show the life who prolongs crystallizer.

Description

Traction type crystallizer for producing zinc and zinc alloy rods

Technical Field

The utility model belongs to the technical field of zinc and zinc alloy production and processing and specifically relates to a traction type crystallizer is used in zinc and zinc alloy pole production.

Background

The zinc and zinc alloy material (wherein the mass fraction of aluminum is 0-22%, the mass fraction of other various improved elements is 0-0.5%, and the balance is zinc) is a novel lead-free electronic material which is successfully researched and developed in recent years and popularized, and is mainly used for lead-free metal spraying of end faces of metalized film capacitors. With the rapid development of new energy technology, the market of the lead-free electronic material is rapidly expanded. At present, the wire billet is mainly produced by two methods in China, one method is produced by an extrusion method, and the extrusion is a plastic processing method of three-dimensional compressive stress, so that the wire billet prepared by the method has high density and outstanding wire drawing performance. However, the extrusion method has many defects which are difficult to overcome, such as bubbles in the wire blank, cracking lines caused by oil inclusion, and core wrapping caused by poor welding of the end faces of the two extruded billets. The other method is to prepare a wire blank by a horizontal continuous casting method, wherein the horizontal continuous casting blank can produce a blank with infinite length, but the quality of the wire blank at the later stage of the service life of the graphite crystallizer is obviously reduced, and due to the influence of gravity, the single-side uneven wear at the bottom of graphite is easily caused by alloy solidified in the graphite crystallizer, so that the service life of the graphite crystallizer is further reduced, the horizontal continuous casting method needs to be stopped and the crystallizer needs to be replaced, the period for replacing the graphite crystallizer is long and is at least more than 4 hours, and the melting furnace needs to be restarted after replacement for at least 24 hours. Therefore, the problems of high energy consumption and inconvenient replacement of the graphite crystallizer exist in the process of preparing the wire blank by the horizontal continuous casting method, and the production and manufacturing cost is improved. The upper initiation continuous casting technology for preparing the wire blank is a conventional technology and is usually used for processing copper, aluminum and alloys thereof, but the existing upper initiation continuous casting technology cannot be used for preparing the wire blank from zinc and zinc alloys, and mainly adopts dry traction, namely a graphite crystallizer is not externally added with a lubricant, so that the service life is short, and the consumption of the graphite crystallizer is high.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the prior art is not enough to be overcome and a traction crystallizer for producing zinc and zinc alloy rods is provided, which has long service life and does not need to shut down the furnace to replace the graphite crystallizer.

In order to solve the technical problem, the utility model discloses a following technical scheme:

the utility model provides a towed crystallizer is used in zinc and zinc alloy pole production for production zinc and zinc alloy pole, it includes the body, this body includes inner wall and outer wall, be equipped with water cooling channel between inner wall and the outer wall, and be equipped with crystallization chamber and cooling chamber in the inner wall, zinc and zinc alloy liquid draw the crystallizer after further cooling through the cooling chamber by liquid phase transition solid phase in the crystallization chamber mutually, the embedded graphite pipe that prevents zinc and zinc alloy liquid corrosion its chamber wall that installs of crystallization chamber, just the outside department that is located the graphite pipe on the chamber wall of crystallization chamber is provided with the immersion oil groove to graphite pipe immersion oil in order to reduce with friction between solid phase zinc and zinc alloy.

The utility model discloses can also further optimize through following technical measure:

as a further improvement, the oil immersion groove is arranged at the position above the solid-liquid mixing position of the zinc and the zinc alloy in the crystallization cavity, and at least one oil immersion groove is arranged. The oil immersion groove is an annular groove formed in the wall of the crystallization cavity, and an oil injection channel for injecting lubricating oil into the annular groove is formed in the body. The outside of body is provided with the batch oil tank, and this batch oil tank communicates through oiling passageway and immersion oil groove. The graphite conduit and the body are connected through threads, and an oil immersion gap is formed between the graphite conduit and the body.

As a further improvement, the water cooling channel comprises a water inlet channel and a water outlet channel, an inner partition plate is arranged between the water inlet channel and the water outlet channel, the water inlet channel and the water outlet channel are communicated at the bottom of the inner partition plate, and the water inlet channel is positioned on the outer side of the water outlet channel. The communication position of the water inlet channel and the water outlet channel is lower than the oil immersion tank. The cooling water in the inhalant canal flows from top to bottom, the cooling water in the exhalant canal flows from bottom to top, and the water inlet arranged in the inhalant canal is lower than the position arranged at the water outlet of the exhalant canal. The body is made of copper.

Owing to adopted above technical scheme, the utility model discloses the beneficial technological effect who has as follows:

the utility model discloses an installed the graphite pipe in the crystallization cavity of crystallizer, utilized the chemical inertia of graphite to make its isolated liquid phase zinc and zinc alloy and body contact, avoided the corruption of zinc and zinc alloy to the body, improved the life-span of crystallizer greatly. But because graphite is softer, receive solid phase zinc and zinc alloy's frictional force easily and produce wearing and tearing, so the utility model discloses set up the immersion oil groove on the chamber wall of crystallization chamber and carry out the immersion oil to graphite pipe, fluid enters into inside from the crystal gap of graphite to form the oil film between graphite pipe and solid phase zinc and zinc alloy and lubricate, and then reduced the wearing and tearing of graphite greatly, prolonged the change cycle of graphite pipe, further improved the life and the use cost of crystallizer.

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 or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a structural view of the integral crystallizer of the present invention.

Fig. 2 is a cross-sectional view of fig. 1.

Fig. 3 is a partial view of fig. 2.

Fig. 4 is a structural sectional view of the crystallizer body of the present invention.

Fig. 5 is a partial view of fig. 4.

Reference numerals:

1. a body; 2. a graphite conduit; 3. a lower bracket; 4. an upper bracket; 5. an oil storage tank; 101. an outer wall; 102. an inner wall; 103. an inner partition plate; 104. a cooling chamber; 105. an oil injection channel; 106. an oil immersion tank; 107. a water outlet; 108. a water inlet; 110. a crystallization cavity; 111. a water inlet channel; 112. and a water outlet channel.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. 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.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Features in the embodiments described below may be combined with each other without conflict.

Example (b):

the traction crystallizer for producing zinc and zinc alloy rods shown in figures 1 to 2 is used for producing zinc and zinc alloy rods, and comprises the following alloy components: the aluminum content is 5%, the balance is zinc, the aluminum content comprises a body 1, the body 1 comprises an inner wall 102 and an outer wall 101, a water cooling channel is arranged between the inner wall 102 and the outer wall 101, a crystallization cavity 110 and a cooling cavity 104 are arranged in the inner wall 102, zinc and zinc alloy liquid are changed from a liquid phase to a solid phase in the crystallization cavity 110 and are further cooled by the cooling cavity 104 and then led out of a crystallizer, a graphite guide pipe 2 for preventing the zinc and zinc alloy liquid from corroding the wall of the crystallization cavity is embedded in the crystallization cavity 110, and an oil immersion groove 106 for immersing the graphite guide pipe 2 in oil so as to reduce the friction between the solid-phase zinc and the zinc alloy is arranged on the wall of the crystallization cavity 110 and on the outer side of the graphite guide pipe.

It should be noted that the body 1 is a copper body, which has good heat conductivity, the lowest position of the water cooling channel is located at the lower position of the graphite conduit 2, so that the liquid zinc and zinc alloy is crystallized in the graphite conduit 2, and is changed from a liquid phase to a solid phase, and the solid zinc and zinc alloy are not easily reacted with the copper alloy, so that the inner wall 102 of the crystallizer is corroded and damaged. The body 1 is fixed by the upper bracket 4 and the lower bracket 3, and the body 1 is installed in a vertical direction in order to ensure smooth drawing of the zinc and zinc alloy rods.

It should be noted that, after the zinc and zinc alloy liquid enters the graphite conduit 2, the liquid and solid are gradually mixed and then changed into a solid phase under the cooling action of the water-cooling channel, the solid and liquid are changed into a solid phase, the solid phase enters the cooling cavity 104, the solid phase zinc and zinc alloy rod is further cooled under the action of the water-cooling channel, and the traction device pulls the solid phase zinc and zinc alloy rod out of the cooling cavity 104. In addition, a feed inlet of the graphite conduit 2 is communicated with a zinc and zinc alloy liquid injection device, and the injection device injects zinc and zinc alloy liquid generated after the melting furnace is heated into the graphite conduit 2 for crystallization. The graphite guide tube is partially exposed to the outside of the lower supporter 3,

it should be further noted that the graphite conduit 2 is installed in the crystallization cavity 110 of the crystallizer, and the contact between the liquid-phase zinc and zinc alloy and the copper alloy body 1 is isolated by utilizing the chemical inertia of graphite, so that the corrosion of zinc and zinc alloy to the body 1 is avoided, and the service life of the crystallizer is greatly prolonged. However, since graphite is soft and is easily worn by the friction force of solid-phase zinc and zinc alloy, the oil immersion groove 106 is formed in the wall of the crystallization cavity 110 to immerse the graphite conduit 2, oil enters the graphite conduit from the crystal gaps of the graphite, and an oil film is formed between the wall of the graphite conduit 2 and the solid-phase zinc and zinc alloy to lubricate the graphite conduit, so that the wear of the graphite is greatly reduced, the replacement cycle of the graphite conduit 2 is prolonged, and the service life and the use cost of the crystallizer are further prolonged.

In this embodiment, the immersion oil tank 106 is disposed at a position above the solid-liquid mixture of zinc and zinc alloy in the crystallization cavity 110, and at least one of the immersion oil tank and the immersion oil tank is disposed. The oil immersion groove 106 is an annular groove formed on the wall of the crystallization cavity 110, and an oil injection passage 105 for injecting lubricating oil into the annular groove is formed in the body 1. An oil storage tank 5 is provided outside the body 1, and the oil storage tank 5 is communicated with an oil immersion groove 106 through an oil filling channel 105. The graphite conduit 2 is connected with the body 1 through threads, and an oil immersion gap is formed between the graphite conduit and the body.

It should be noted that the immersion bath 106 is preferably located above the location where a certain proportion of solid phase zinc and zinc alloy begins to be generated in the crystallization chamber 110, since solid phase zinc and zinc alloy particles will wear away the graphite tube 2, but liquid phase zinc and zinc alloy will not have this problem. One or more oil immersion grooves 106 can be arranged, in this embodiment, one oil immersion groove 106 is arranged at a position from bottom to top in the crystallization cavity 110, through multiple experiments and observations of the applicant, the proportion of solid-phase zinc and zinc alloy and liquid-phase zinc and zinc alloy is greater than 1:1 from the position, and the oil immersion groove 106 arranged at the position can play an effective lubricating role and can reduce the consumption of lubricating oil. Of course, a plurality of immersion oil grooves 106 may be provided, for example, one immersion oil groove 106 is provided at one half or three quarters of the crystallization cavity 110, that is, 3 immersion oil grooves 106 are provided, which is better than one immersion oil groove, but the consumption of the lubricating oil is increased to some extent, and the quality of the zinc and zinc alloy rods is also adversely affected to some extent.

It should be noted that, the graphite conduit 2 and the crystallization chamber 110 are connected by a screw thread, and because the male and female screw threads of the screw thread connection cannot be completely closed by contact, and a certain gap is formed between the brittle material graphite and the copper alloy metal, lubricating oil can permeate into both sides from the oil immersion groove 106 through the gap between the screw threads, and further permeate into the graphite conduit 2 to generate a lubricating effect.

The oil filling passage 105 is located in the water cooling passage, and the lubricating oil flows from the upper oil reservoir 5 into the oil sumping groove 106 through the oil filling passage 105.

In this embodiment, the water-cooling channel includes a water inlet channel 111 and a water outlet channel 112, an inner partition 103 is disposed between the water inlet channel 111 and the water outlet channel 112, the two are communicated with the bottom of the inner partition 103, and the water inlet channel 111 is located outside the water outlet channel 112. The communication position of the water inlet passage 111 and the water outlet passage 112 is lower than the oil immersion groove 106. The cooling water in the water inlet channel 111 flows from top to bottom, the cooling water in the water outlet channel 112 flows from bottom to top, and the water inlet 108 arranged in the water inlet channel 111 is lower than the water outlet 107 arranged in the water outlet channel 112.

It should be noted that the inner partition 103 is located between the inner wall 102 and the outer wall 101 of the body 1, and the upper end of the inner partition is fixed on the body 1, and a gap is left between the lower end of the inner partition and the body 1 for cooling water to flow through, and the inner partition communicates with the water inlet channel 111 and the water outlet channel 112, that is, the inner partition 103 divides the space between the inner wall 102 and the outer wall 101 into two cavities, the outer side is the water inlet channel 111, and the inner side is the water outlet channel 112. The inlet 108 is lower than the outlet 107 to improve the cooling effect.

In the manufacturing method of the zinc and zinc alloy rod in the embodiment, the melting furnace is started, the zinc alloy material with the composition ratio of 95% Zn and 5% A (mass percentage) is slowly added from the feed inlet of the melting furnace, the added zinc alloy material is melted to the specified liquid level height, the alloy liquid is controlled to be about 600 ℃, the water inlet 108 and the water outlet 107 of the crystallizer arranged on the blank guiding mechanism are opened, and cooling water starts to flow in the water cooling channel. Starting a blank leading mechanism, wherein the graphite crystallizer device is pre-installed on the blank leading mechanism, inserting a blank leading rod into the graphite crystallizer device to enable the blank leading rod to reach the bottom end of a graphite guide pipe 2 of the crystallizer device, controlling the blank leading mechanism to descend to enable a part of 50-80 mm of the end of the crystallizer to be inserted into alloy liquid, enabling the end of the crystallizer not to contain an exposed part of the graphite guide pipe 2, starting an automatic control device to ensure that the part of 50-80 mm of the end of the crystallizer is inserted into the alloy liquid in the whole traction process, and regulating the blank leading speed to 0.7m/min, wherein the blank leading rod can carry the alloy wire blank solidified into solid and be led out of the crystallizer together. As the zinc alloy liquid enters the graphite conduit 2 and begins to crystallize and is drawn off, continuous addition of alloy material is required to maintain the liquid level. In order to stabilize the traction process and prolong the service life of the graphite crystallizer, a proper amount of lubricating oil needs to be continuously added into the oil immersion groove 106 to realize the continuous production of the high-quality zinc alloy rod blank.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.

Claims

1. The utility model provides a towed crystallizer is used in zinc and zinc alloy pole production for production zinc and zinc alloy pole, it includes the body, this body includes inner wall and outer wall, be equipped with water cooling channel between inner wall and the outer wall, and be equipped with crystallization chamber and cooling chamber in the inner wall, zinc and zinc alloy liquid draw out the crystallizer after further cooling through the cooling chamber by liquid phase transition solid phase in the crystallization chamber, a serial communication port, the embedded graphite pipe that prevents zinc and zinc alloy liquid corrosion its chamber wall that installs of crystallization chamber, just be located the outside department of graphite pipe on the chamber wall of crystallization chamber and be provided with the immersion oil groove to graphite pipe immersion oil in order to reduce with friction between solid phase zinc and the zinc alloy.

2. The traction crystallizer for producing zinc and zinc alloy rods according to claim 1, wherein at least one oil immersion groove is arranged in the crystallization cavity at a position above the solid-liquid mixture of zinc and zinc alloy.

3. The traction type crystallizer for producing zinc and zinc alloy rods according to claim 1 or 2, wherein the oil immersion groove is an annular groove formed on the wall of the crystallization cavity, and an oil injection channel for injecting lubricating oil into the annular groove is formed in the body.

4. The traction type crystallizer for producing zinc and zinc alloy rods according to claim 3, wherein an oil storage tank is arranged outside the body and is communicated with the oil immersion tank through an oil injection channel.

5. The traction crystallizer for producing zinc and zinc alloy rods according to claim 1 or 2, wherein the graphite guide pipe is connected with the body through a thread, and an oil immersion gap is formed between the graphite guide pipe and the body.

6. The traction type crystallizer for producing zinc and zinc alloy rods according to claim 1, wherein the water cooling channel comprises a water inlet channel and a water outlet channel, an inner partition plate is arranged between the water inlet channel and the water outlet channel, the water inlet channel and the water outlet channel are communicated at the bottom of the inner partition plate, and the water inlet channel is positioned outside the water outlet channel.

7. The traction type crystallizer for producing zinc and zinc alloy rods according to claim 6, wherein the communication position of the water inlet channel and the water outlet channel is lower than the position of the oil immersion tank.

8. The traction type crystallizer for producing Zn and Zn alloy rods of claim 6, wherein the cooling water in the water inlet channel flows from top to bottom, the cooling water in the water outlet channel flows from bottom to top, and the water inlet of the water inlet channel is arranged at a position lower than the water outlet of the water outlet channel.

9. The traction crystallizer for producing zinc and zinc alloy bars according to claim 1, wherein said body is a copper body.