Liquid magnesium purification device for titanium sponge production

Abstract

The utility model belongs to the technical field of liquid magnesium purification, and particularly relates to a liquid magnesium purification device for titanium sponge production. The liquid magnesium purification device is reasonable in design, the crucible large cover and the crucible device are detachably and hermetically connected, sediment cleaning and repeated use are facilitated, and liquid magnesium to be purified is effectively purified by arranging the magnesium outlet, the pressurizing opening, the pressure relief opening and the feeding opening. The feeding device is provided with the flow meter, the regulating valve and other components, so that the adding amount of the purification material can be accurately controlled, and the stability and consistency of the purification effect are ensured. The purification material reacts with the liquid magnesium at high temperature to generate sponge titanium, impurity components in the liquid magnesium are adsorbed by utilizing the adsorption effect of the sponge titanium, and meanwhile, generated magnesium chloride is precipitated at the bottom of the crucible due to the fact that the density of the generated magnesium chloride is larger than that of the liquid magnesium, so that the problem that impurities cannot be effectively reduced due to standing sedimentation of an existing crucible is solved; and the quality of the produced sponge titanium is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to liquid magnesium purification technical field, concretely relates to a liquid magnesium purification device for titanium sponge production. BACKGROUND

[0002] In order to reduce the excessive iron, aluminum and other impurities in liquid magnesium into titanium sponge, usually adopt the crucible stationary to carry out impurity settlement, reach the purpose of purifying liquid magnesium, but settlement can not effectively reduce the impurities in liquid magnesium, therefore when producing titanium sponge needs to supplement liquid magnesium, the impurities in supplement liquid magnesium all enter titanium sponge, because titanium sponge has the characteristics of adsorption, so the impurities in liquid magnesium are all enriched in titanium sponge, cause the quality of titanium sponge to be poor, further influence the market price of titanium sponge, can cause certain economic loss to enterprise.

[0003] Therefore, a liquid magnesium purification device is urgently needed to solve the problem of ineffective reduction of impurities in liquid magnesium in the prior art. UTILITY MODEL CONTENT

[0004] The utility model aims at overcoming the shortcoming of prior art, provide a liquid magnesium purification device for titanium sponge production.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] On the one hand, the utility model provides a liquid magnesium purification device for titanium sponge production, including the crucible device for heating and heat preservation liquid magnesium, with the detachable and sealed connection of crucible device crucible big lid,

[0007] The top surface of the crucible big lid is provided with a magnesium outlet, a pressure charging port for charging inert gas, a pressure relief port for discharging inert gas and a charging port for adding purification material, the magnesium outlet is provided with a second flange connected with a sealing cover, the pressure relief port is provided with a plugable sealing plug, and the charging port is connected with a charging device for conveying purification material.

[0008] Specifically, the crucible device comprises a crucible and a heating device wrapped outside the crucible for heating and heat preservation.

[0009] Specifically, the crucible big lid is further provided with a first flange in sealed connection with the crucible device.

[0010] Further, a sealing rubber ring is arranged between the first flange and the crucible device.

[0011] Specifically, the top surface of the crucible big lid is further provided with a pressure measuring port, and the pressure measuring port is fixedly provided with a pressure detector for detecting the pressure of inert gas in the crucible device.

[0012] Specific, the filling port is connected with an inert gas storage tank, and a first valve is arranged between the inert gas storage tank and the filling port.

[0013] Specific, the feeding device comprises a purified material storage tank, the feeding device is provided with a material feeding hollow rod for being inserted into the feeding port, the material feeding hollow rod is in sealing connection with the feeding port, one end of the material feeding hollow rod away from the feeding port is provided with a second valve, a third valve and a flow meter are sequentially arranged between the purified material storage tank and the second valve, an adjusting valve is arranged between the second valve and the adjusting valve, and a fourth valve for pressure relief is arranged between the second valve and the adjusting valve; preferably, the material feeding hollow rod extends into the middle and lower part of the crucible to pass through the purified material.

[0014] Specific, the purified material is titanium tetrachloride.

[0015] Specific, the sealing plug is in sealing cooperation with the pressure relief port, and the sealing plug is made of rubber.

[0016] It should be noted that titanium tetrachloride reacts with magnesium at high temperature to generate titanium sponge, and the main chemical reaction formula is as follows:

[0017]

[0018] By using the adsorption effect of the generated titanium sponge, impurity components in the liquid magnesium are adsorbed, and the density of the generated magnesium chloride is greater than that of the liquid magnesium, so that the magnesium chloride and the liquid magnesium are layered and precipitated at the bottom of the crucible.

[0019] On the other hand, the utility model provides a kind of purification method of liquid magnesium purification device for titanium sponge production, and the specific steps are as follows:

[0020] Step 1, first, the liquid magnesium to be purified is added to the crucible device, and then the crucible large cover is sealingly connected with the crucible device;

[0021] Step 2, the crucible device is heated to 790-800 DEG C and continuously kept warm;

[0022] Step 3, inert gas with preset pressure is filled into the filling port, and the preset pressure is 3-5kPa;

[0023] Step 4, a specific amount of purified material is added into the liquid magnesium to be purified by using the feeding device, and the standing time is greater than or equal to 2h;

[0024] Step 5, the sealing plug is pulled out to discharge inert gas;

[0025] Step 6, the magnesium outlet is opened, the purified liquid magnesium is extracted, and the liquid magnesium for titanium sponge production is obtained.

[0026] Specifically, in step 4, the standing specifically functions to make the generated magnesium chloride in the reaction precipitate to the bottom of the crucible, and to give the titanium sponge sufficient time to adsorb impurities, so that the liquid magnesium is more pure.

[0027] It should be noted that in actual production, after the large crucible cover is sealingly connected with the crucible device, the liquid magnesium to be purified is purified, and after the purification is completed, the purified liquid magnesium is used for titanium sponge production; when the liquid magnesium needs to be continuously purified subsequently, the liquid magnesium to be purified is added into the liquid magnesium purification device from the magnesium outlet; in addition, when the liquid magnesium purification device is in use, the crucible device is continuously kept warm until the precipitate in the crucible device needs to be cleaned, then the heating device is turned off, the large crucible cover is opened, and after the precipitate in the crucible device is cleaned, the above steps are repeated to purify the liquid magnesium to be purified.

[0028] In addition, after the liquid magnesium to be purified in the liquid magnesium purification device reacts with the purification material, the purified liquid magnesium can be extracted after standing for 2 hours, or the purified liquid magnesium can be extracted after standing for more than 2 hours according to actual production needs; when the purified liquid magnesium needs to be extracted, the liquid magnesium extraction pipeline needs to be inserted into the inside of the liquid magnesium, and it is appropriate to insert into the middle of the liquid magnesium; if the insertion is too deep, the precipitate is easily extracted together, which affects the use.

[0029] In addition, after the purified liquid magnesium is extracted, the liquid magnesium to be purified is supplemented and added, and the purification is continued; each time the liquid magnesium to be purified is added, the purification material matched therewith needs to be filled, that is, 4.2 kg of purification material needs to be filled for 1 t of liquid magnesium to be purified.

[0030] Compared with the prior art, the technical scheme provided by the utility model has the following beneficial effects:

[0031] 1. The liquid magnesium purification device is reasonable in design, the large crucible cover and the crucible device are detachably and sealingly connected, the precipitate can be easily cleaned and reused, and the liquid magnesium to be purified can be effectively purified through the magnesium outlet, the pressure charging port, the pressure relief port and the charging port.

[0032] 2. The liquid magnesium purification device is provided with a flowmeter and an adjusting valve, so that the addition amount of the purification material can be accurately controlled, for example, 4.2 kg of purification material is filled for 1 t of liquid magnesium to be purified, so that the stability and consistency of the purification effect are ensured.

[0033] 3. The liquid magnesium purification device generates titanium sponge by using the purification material to react with the liquid magnesium at high temperature, the impurity components in the liquid magnesium are adsorbed by using the adsorption effect of the titanium sponge, and the generated magnesium chloride precipitates at the bottom of the crucible due to the larger density than the liquid magnesium, so that the problem that the existing crucible standing and settling cannot effectively reduce impurities is solved, and the quality of the produced titanium sponge is improved. BRIEF DESCRIPTION OF DRAWINGS

[0034] The accompanying drawings are incorporated into the specification and constitute a part of the specification, and together with the specification serve to explain the principle of the utility model.

[0035] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description, and obviously, for those skilled in the art, other drawings can also be obtained without creative labor.

[0036] Figure 1 It is a structural schematic view of the liquid magnesium purification device for titanium sponge production of the present application.

[0037] Figure 2 It is a top view of the large cover of the crucible.

[0038] Figure 3 It is the A-A sectional view of Figure 2

[0039] Figure 4 It is a structural schematic view of the feeding device of the present application.

[0040] Figure 5 It is a flow chart of the purification method of the present application.

[0041] Among them: 1 is the magnesium outlet; 2 is the pressure filling port; 3 is the pressure measuring port; 4 is the pressure relief port; 5 is the feeding port; 6 is the sealing plug; 7 is the large cover of the crucible; 8 is the crucible; 9 is the heating device; 10 is the purification material storage tank; 11 is the third valve; 12 is the flow meter; 13 is the regulating valve; 14 is the second valve; 15 is the fourth valve; 16 is the material passing hollow rod. DETAILED DESCRIPTION

[0042] The exemplary embodiments will be described in detail herein with reference to the accompanying drawings. The embodiments described in the following exemplary embodiments do not represent all the embodiments consistent with the present application. Instead, they are merely examples consistent with some aspects of the present application as detailed in the appended claims.

[0043] In order to make those skilled in the art better understand the technical solutions of the present application, the present application will be further described in detail below with reference to the drawings and embodiments.

[0044] Referring to Figures 1-4 As shown in the drawings, the present application provides a liquid magnesium purification device for titanium sponge production, which comprises a crucible device for heating and heat preservation of liquid magnesium, a large cover 7 of the crucible device which is detachably and sealingly connected with the crucible device;

[0045] ​The top surface of the large cover 7 of the crucible is provided with a magnesium outlet 1, a pressurizing port 2 for filling inert gas, a pressure relief port 4 for discharging inert gas, and a charging port 5 for adding purified material; the magnesium outlet 1 is provided with a second flange connected with a sealing cover, the pressure relief port 4 is provided with a sealing plug 6 capable of being plugged and unplugged, and the charging port 5 is connected with a charging device for conveying purified material.

[0046] Specifically, the crucible device includes a crucible 8 and a heating device 9 wrapped outside the crucible 8 and used for heating and heat preservation, as shown in Figure 1

[0047] Specifically, the large cover 7 of the crucible is further provided with a first flange in sealing connection with the crucible device.

[0048] Further, a sealing rubber ring is arranged between the first flange and the crucible device.

[0049] Specifically, the top surface of the large cover 7 of the crucible is further provided with a pressure measuring port 3, and the pressure measuring port 3 is fixedly provided with a pressure detector for detecting the pressure of the inert gas in the crucible device.

[0050] Specifically, the pressurizing port 2 is connected with an inert gas storage tank, and a first valve is arranged between the inert gas storage tank and the pressurizing port 2.

[0051] Specifically, the charging device includes a purified material storage tank 10, the charging device is provided with a material conveying hollow rod 16 inserted into the charging port 5, the material conveying hollow rod 16 is in sealing connection with the charging port 5, one end of the material conveying hollow rod 16 away from the charging port 5 is provided with a second valve 14, a third valve 11, a flow meter 12, and an adjusting valve 13 are sequentially arranged between the purified material storage tank 10 and the second valve 14, a fourth valve 15 for pressure relief is arranged between the second valve 14 and the adjusting valve 13; preferably, the material conveying hollow rod extends into the middle and lower part of the crucible to convey the purified material, as shown in Figure 4

[0052] Specifically, the purified material is titanium tetrachloride.

[0053] Specifically, the sealing plug 6 is in sealing cooperation with the pressure relief port 4, and the material of the sealing plug 6 is rubber.

[0054] Embodiment 1

[0055] As shown in Figure 5 The embodiment also provides a purification method of the liquid magnesium purification device for sponge titanium production, and the specific steps are as follows:

[0056] Step 1: first, 2t of liquid magnesium to be purified is added into the crucible device, and then the large cover 7 of the crucible is sealingly connected with the crucible device;

[0057] ​​Step 2, heat the crucible device to 790℃ and keep constant temperature;

[0058] Step 3, fill 3kPa inert gas into the pressure filling port 2;

[0059] Step 4, add 8.4kg purified material through the hollow rod into the liquid magnesium to be purified by using the feeding device, and stand for 2h;

[0060] Step 5, pull out the sealing plug 6 to discharge the inert gas;

[0061] Step 6, open the magnesium outlet 1, and draw out the purified liquid magnesium in the crucible device to obtain the liquid magnesium for sponge titanium production.

[0062] Example 2

[0063] Referring to Figure 5 The embodiment also provides a purification method of the liquid magnesium purification device for sponge titanium production, and the specific steps are as follows:

[0064] Step 1, first add 4t liquid magnesium to be purified into the crucible device, and then seal and connect the crucible cover 7 with the crucible device;

[0065] Step 2, heat the crucible device to 800℃ and keep constant temperature;

[0066] Step 3, fill 5kPa inert gas into the pressure filling port 2;

[0067] Step 4, add 16.8kg purified material through the hollow rod into the liquid magnesium to be purified by using the feeding device, and stand for 3h;

[0068] Step 5, pull out the sealing plug 6 to discharge the inert gas;

[0069] Step 6, open the magnesium outlet 1, and draw out the purified liquid magnesium in the crucible device to obtain the liquid magnesium for sponge titanium production.

[0070] It should be noted that the adsorption time of the generated sponge titanium and impurities in the liquid magnesium to be purified is 2h, but in actual production, the liquid magnesium to be purified is not immediately drawn out after purification is completed, but is drawn out when needed; therefore, the adsorption time of the sponge titanium and the impurities in the liquid magnesium to be purified is greater than or equal to 2h; when the liquid magnesium needs to be drawn out, the sealing plug 6 is first pulled out to discharge the inert gas, and then the liquid magnesium drawing operation is performed.

[0071] The above only describes specific embodiments of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application.

[0072] It is to be understood that the present application is not limited to the particular examples described and that various modifications and alterations can be made without departing from the scope of the present application. The scope of the present application is limited only by the claims appended hereto.

Claims

1. A liquid magnesium purification device for titanium sponge production, characterized in that, The application relates to a crucible device for heating and keeping liquid magnesium, and a large crucible cover (7) detachably and sealingly connected with the crucible device. The top surface of the large crucible cover (7) is provided with a magnesium outlet (1), a pressure charging port (2) for charging inert gas, a pressure relief port (4) for discharging inert gas, and a charging port (5) for adding purified material; the magnesium outlet (1) is provided with a second flange connected with a sealing cover; the pressure relief port (4) is provided with a plug-in sealing plug (6); and the charging port (5) is connected with a charging device for conveying the purified material.

2. The liquid magnesium purifying device for titanium sponge production according to claim 1, characterized in that, The crucible device comprises a crucible (8) and a heating device (9) wrapped outside the crucible (8) and used for heating and keeping.

3. The liquid magnesium purifying apparatus for titanium sponge production according to claim 1, characterized by, The large crucible cover (7) is further provided with a first flange sealingly connected with the crucible device.

4. The liquid magnesium purifying apparatus for titanium sponge production according to claim 3, characterized by, A sealing rubber ring is arranged between the first flange and the crucible device.

5. The liquid magnesium purifying apparatus for titanium sponge production according to claim 1, characterized by The top surface of the large crucible cover (7) is further provided with a pressure measuring port (3) fixedly provided with a pressure detector for detecting the pressure of the inert gas in the crucible device.

6. The liquid magnesium purifying apparatus for titanium sponge production according to claim 1, characterized by The pressure charging port (2) is connected with an inert gas storage tank, and a first valve is arranged between the pressure charging port (2) and the inert gas storage tank.

7. The liquid magnesium purifying apparatus for titanium sponge production according to claim 1, characterized by The charging device comprises a purified material storage tank (10), and the charging device is provided with a material conveying hollow rod (16) inserted into the charging port (5); the material conveying hollow rod (16) is sealingly connected with the charging port (5); one end of the material conveying hollow rod (16) away from the charging port (5) is provided with a second valve (14); a third valve (11), a flow meter (12) and an adjusting valve (13) are sequentially arranged between the purified material storage tank (10) and the second valve (14); and a fourth valve (15) for pressure relief is arranged between the second valve (14) and the adjusting valve (13).

8. The liquid magnesium purifying apparatus for titanium sponge production according to claim 1, characterized by The purified material is titanium tetrachloride.

9. The liquid magnesium purifying apparatus for titanium sponge production according to claim 1, characterized by The sealing plug (6) is sealingly matched with the pressure relief port (4).

10. The liquid magnesium purifying apparatus for titanium sponge production according to claim 1, characterized by The sealing plug (6) is made of rubber.

Images