Vacuum distillation furnace for noble lead

Abstract

The utility model discloses a noble lead vacuum distillation furnace, which relates to the technical field of vacuum distillation furnaces and comprises a discharge box, a vacuum distillation furnace component is fixedly mounted at the top of the discharge box, and a feeding component is fixedly mounted at the top of the vacuum distillation furnace component. According to the noble lead vacuum distillation furnace disclosed by the utility model, the third inserting plate type valve and the second inserting plate type valve are respectively arranged at the two ends of the feeding box, and the gas inlet pipe is used for filling protective gas into the feeding box through the gas inlet pipe before materials are fed, so that the materials fall into the crucible through the material guide pipe; by arranging the discharging box, the interior of the vacuum distillation furnace assembly is still in a vacuum state when the vacuum distillation furnace assembly is discharged, the vacuum distillation furnace assembly rapidly enters a machining state, meanwhile, discharging of a traditional discharging pipe is avoided, and the production efficiency of the vacuum distillation furnace assembly is improved. Corrosion and replacement of the discharge pipe are avoided, and the use cost is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum distillation furnace technical field, more specifically, the utility model relates to a kind of noble lead vacuum distillation furnace. BACKGROUND

[0002] Noble lead is the intermediate product of lead anode slime fire refining, when lead electrolytic refining, the impurities in anode plate fall off to form "anode mud", after removing part of impurities by reduction smelting, the crude metal with lead as matrix, rich in gold and silver, i.e.

[0003] The existing vacuum distillation furnace generally sets up heating body, the working temperature of heating body can reach 1300 DEG C, so the temperature of liquid metal just flowing out from vacuum distillation furnace is very high, generally around 1000 DEG C, when high-temperature liquid metal is discharged through discharge pipe, the outer surface temperature of discharge pipe also rises, and when the temperature is above 575 DEG C, the outer surface of steel discharge pipe will rapidly oxidize to form oxide skin, with the continuous thickening and falling off of oxide skin, the outer surface of discharge pipe continuously thins until perforation, air enters, destroys the vacuum environment of vacuum distillation furnace and causes shutdown, not only the consumption of discharge pipe increases cost, but also the production efficiency of vacuum distillation furnace is reduced due to frequent shutdown. SUMMARY

[0004] The main purpose of the utility model is to provide a kind of noble lead vacuum distillation furnace, can effectively solve the problems in the background art.

[0005] To achieve the above-mentioned purpose, the technical scheme adopted by the utility model is as follows:

[0006] A kind of noble lead vacuum distillation furnace, including discharge box, the top of the discharge box is fixedly installed with vacuum distillation furnace assembly, the top of the vacuum distillation furnace assembly is fixedly installed with feeding assembly;

[0007] The vacuum distillation furnace assembly includes vacuum furnace body, the side of the vacuum furnace body is fixedly connected with second vacuum pipe, the side of the vacuum furnace body is fixedly installed with rotating motor, the output end of the rotating motor is fixedly installed with rotating shaft, the rotating shaft is rotatably installed in the inside of vacuum furnace body, the inside of the rotating shaft is fixedly installed with crucible, the outer surface of the crucible is provided with induction heating coil, one end of the top of the crucible is integrally formed with material guide nozzle, the bottom of the receiving hopper is fixedly connected with the bottom of the discharge pipe, the inside of the discharge pipe is fixedly connected with the first plug-in valve body.

[0008] Preferably, the discharge box comprises a vacuum box, the side of the vacuum box is hinged with a sealing door through a hinge, the bottom of the vacuum box is fixedly connected with a lifting cylinder, the output end of the lifting cylinder is fixedly connected with a placing disc, the inside of the placing disc is placed with a holding tank, and the right side of the vacuum box is fixedly communicated with a first vacuum pipe.

[0009] Preferably, the bottom of the feeding pipe is communicated with the top of the vacuum box, and the holding tank and the placing disc are movably sleeved in the feeding pipe.

[0010] Preferably, the feeding assembly comprises a furnace cover, the top of the furnace cover is fixedly installed with a feeding box, the bottom of the feeding box is fixedly communicated with a guide pipe, one side of the feeding box is fixedly communicated with an air inlet pipe, the top of the feeding box is fixedly communicated with a feeding port, the inside of the feeding port is provided with a third plug-in valve, and the upper end of the guide pipe is provided with a second plug-in valve.

[0011] Preferably, the furnace cover is fixedly installed on the top of the vacuum furnace body, and the guide pipe is located above the crucible.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] 1. By setting third plug-in valve and second plug-in valve on both ends of the feeding box, using the air inlet pipe, before the material is put in, the air inlet pipe is used to fill the protective gas in the feeding box, the third plug-in valve is opened, the material is put into the feeding box through the feeding port, then the third plug-in valve is closed, the second plug-in valve is opened, and the material falls into the inside of the crucible through the guide pipe, so that the air entering the inside of the vacuum furnace body is reduced, and the oxidation of the high-temperature metal in the inside of the vacuum furnace body is reduced.

[0014] 2. By setting the discharge box, when the vacuum distillation furnace assembly discharges, the inside of the vacuum distillation furnace assembly is still in a vacuum state, so that the vacuum distillation furnace assembly quickly enters the processing state, subsequent secondary processing is facilitated, the traditional discharge pipe is avoided, the corrosion and replacement of the discharge pipe are avoided, and the use cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a discharge box structure schematic view of the utility model;

[0017] Figure 3 It is a right side cross section structure schematic view of the vacuum distillation furnace assembly of the utility model;

[0018] Figure 4 It is a cross section structure schematic view of the vacuum distillation furnace assembly of the utility model;

[0019] Figure 5 The utility model discloses a schematic view of the feeding assembly structure.

[0020] The figure mark is: 1, the discharge box, 2, the vacuum distillation furnace assembly, 3, the feeding assembly, 11, the vacuum box, 12, the sealing door, 13, the first vacuum pipe, 14, the lifting air cylinder, 15, the placing tray, 16, the holding jar, 21, the vacuum furnace body, 22, the second vacuum pipe, 23, the receiving hopper, 24, the discharging pipe, 25, the first plug-in plate type valve body, 26, the rotating motor, 27, the rotating shaft, 28, the induction heating coil, 29, the crucible, 210, the material guide nozzle, 31, the furnace cover, 32, the feeding box, 33, the material guide pipe, 34, the air inlet pipe, 35, the second plug-in plate type valve, 36, the feeding port, 37, the third plug-in plate type valve. DETAILED DESCRIPTION

[0021] To make the technical problem, technical scheme and advantages to be solved by the utility model more clear, the following will be in detail with the drawings and specific embodiment.

[0022] As shown in the accompanying Figure 1 to the accompanying Figure 4 The embodiment of the utility model provides a noble lead vacuum distillation furnace, including discharge box 1, vacuum distillation furnace assembly 2 and feeding assembly 3, vacuum distillation furnace assembly 2 fixed mounting is at the top of discharge box 1, and feeding assembly 3 fixed mounting is at the top of vacuum distillation furnace assembly 2,

[0023] As Figures 3-4 The vacuum distillation furnace assembly 2 includes the vacuum furnace body 21, the receiving hopper 23 and the crucible 29, the side of the vacuum furnace body 21 is fixedly connected with the second vacuum pipe 22, the side of the vacuum furnace body 21 is fixedly installed with the rotating motor 26, the output end of the rotating motor 26 is fixedly installed with the rotating shaft 27, the rotating shaft 27 is rotatably installed in the inside of the vacuum furnace body 21, the crucible 29 is fixedly installed in the inside of the rotating shaft 27, the outer surface of the crucible 29 is provided with the induction heating coil 28, one end of the top of the crucible 29 is integrally formed with the material guide nozzle 210, the receiving hopper 23 is fixedly installed at one side of the bottom of the vacuum furnace body 21, the bottom of the receiving hopper 23 is fixedly connected with the discharging pipe 24, the inside of the discharging pipe 24 is fixedly connected with the first plug-in plate type valve body 25, by the receiving hopper 23, increase the area of the upper end of the receiving hopper 23, in turn, the metal solution inside the crucible 29 is poured into the inside of the holding jar 16, avoids the metal solution to pour.

[0024] As Figure 2As shown, the discharge box 1 includes a vacuum box 11, the side of the vacuum box 11 is hinged with a sealing door 12 through a hinge, the bottom of the vacuum box 11 is fixedly connected with a lifting cylinder 14, the output end of the lifting cylinder 14 is fixedly connected with a placing disc 15, the inside of the placing disc 15 places a holding tank 16, and the right side of the vacuum box 11 is fixedly communicated with a first vacuum pipe 13.

[0025] As shown, the bottom of the blanking pipe 24 is communicated with the top of the vacuum box 11, and the holding tank 16 and the placing disc 15 are movably sleeved in the inside of the blanking pipe 24.

[0026] As shown, Figure 5 As shown, the feeding assembly 3 includes a furnace cover 31, the top of the furnace cover 31 is fixedly installed with a feeding box 32, the bottom of the feeding box 32 is fixedly communicated with a guide pipe 33, one side of the feeding box 32 is fixedly communicated with an air inlet pipe 34, the top of the feeding box 32 is fixedly communicated with a feeding port 36, the inside of the feeding port 36 is provided with a third plug-in valve 37, and the upper end of the guide pipe 33 is provided with a second plug-in valve 35. When new materials are added in the middle or again, the air inlet pipe 34 is used, the inside of the feeding box 32 is filled with protective gas such as argon, nitrogen and the like before the materials are put in, the third plug-in valve 37 is opened, the materials are put into the inside of the feeding box 32 through the feeding port 36, then the third plug-in valve 37 is closed, the second plug-in valve 35 is opened, the materials fall into the inside of the crucible 29 through the guide pipe 33, the air entering the inside of the vacuum furnace body 21 is reduced, and then the oxidation of the high-temperature metal in the inside of the vacuum furnace body 21 is reduced.

[0027] As shown, the furnace cover 31 is fixedly installed on the top of the vacuum furnace body 21, and the guide pipe 33 is located above the crucible 29.

[0028] The working process of the utility model is as follows:

[0029] In use, the inside of the feeding box 32 is filled with protective gas such as argon, nitrogen and the like through the air inlet pipe 34, the third plug-in valve 37 is opened, the materials are put into the inside of the feeding box 32 through the feeding port 36, then the third plug-in valve 37 is closed, the second plug-in valve 35 is opened, the materials fall into the inside of the crucible 29 through the guide pipe 33, the air entering the inside of the vacuum furnace body 21 is reduced, the second vacuum pipe 22 is connected to a vacuum pump, the inside of the vacuum furnace body 21 is in a vacuum state through the vacuum pump, and the outer surface of the crucible 29 is heated through the induction heating coil 28, so that the materials in the inside of the crucible 29 realize the separation of lead and precious metals;

[0030] When discharging, the first vacuum pipe 13 is connected to a vacuum pump, so that the interior of the vacuum box 11 is in a vacuum state, the first plug valve 25 is opened, then the lifting cylinder 14 is elongated, so that the placing disc 15 and the containing pot 16 are lifted, the containing pot 16 enters the interior of the discharging pipe 24 and reaches the bottom of the receiving hopper 23, then the rotating motor 26 controls the rotating shaft 27 to rotate, so that the crucible 29 is inclined, the liquid in the interior of the crucible 29 is poured into the interior of the containing pot 16 through the guide nozzle 210, after discharging, the lifting cylinder 14 controls the placing disc 15 and the containing pot 16 to descend to the interior of the vacuum box 11, the first plug valve 25 is closed, then the sealing door 12 is opened, the solution in the interior of the containing pot 16 is taken out, when discharging, a large amount of external air is prevented from entering the interior of the vacuum furnace body 21, and during discharging, the vacuum furnace body 21 is still in a vacuum state, so that the vacuum distillation furnace assembly 2 quickly enters a processing state, and subsequent secondary processing is facilitated.

[0031] Finally, it should be noted that the following points: the utility model discloses the embodiment attached drawing, only involve the structure with the disclosure embodiment, other structures can refer to the usual design, under the condition of no conflict, the same embodiment and different embodiments of the utility model can be combined with each other;

[0032] The above only for the preferred embodiment of the utility model, and does not limit the utility model, any modification, equivalent replacement, improvement etc. within the spirit and principles of the utility model, should be included in the protection scope of the utility model.

Claims

1. A noble lead vacuum distillation furnace comprising a discharge tank (1), characterized in that: The top of the discharge box (1) is fixedly installed with a vacuum distillation furnace assembly (2), and the top of the vacuum distillation furnace assembly (2) is fixedly installed with a feeding assembly (3). The vacuum distillation furnace assembly (2) comprises a vacuum furnace body (21), the side of the vacuum furnace body (21) is fixedly communicated with a second vacuum pipe (22), the side of the vacuum furnace body (21) is fixedly installed with a rotating motor (26), the output end of the rotating motor (26) is fixedly installed with a rotating shaft (27), the rotating shaft (27) is rotatably installed in the vacuum furnace body (21), the inside of the rotating shaft (27) is fixedly installed with a crucible (29), the outer surface of the crucible (29) is provided with an induction heating coil (28), one end of the top of the crucible (29) is integrally formed with a material guide nozzle (210), one side of the bottom of the vacuum furnace body (21) is fixedly installed with a material receiving hopper (23), the bottom of the material receiving hopper (23) is fixedly communicated with a discharging pipe (24), and the inside of the discharging pipe (24) is fixedly connected with a first plug-in valve body (25).

2. A noble lead vacuum distillation furnace according to claim 1, characterized in that: The discharge box (1) comprises a vacuum box (11), the side of the vacuum box (11) is hingedly connected with a sealing door (12), the bottom of the vacuum box (11) is fixedly connected with a lifting air cylinder (14), the output end of the lifting air cylinder (14) is fixedly connected with a placing disc (15), the inside of the placing disc (15) is placed with a containing tank (16), and the right side of the vacuum box (11) is fixedly communicated with a first vacuum pipe (13).

3. A vacuum distillation furnace for precious lead according to claim 2, characterized in that: The bottom of the discharging pipe (24) is communicated with the top of the vacuum box (11), and the containing tank (16) and the placing disc (15) are movably sleeved in the discharging pipe (24).

4. A noble lead vacuum distillation furnace according to claim 1, characterized in that: The feeding assembly (3) comprises a furnace cover (31), the top of the furnace cover (31) is fixedly installed with a feeding box (32), the bottom of the feeding box (32) is fixedly communicated with a material guide pipe (33), one side of the feeding box (32) is fixedly communicated with an air inlet pipe (34), the top of the feeding box (32) is fixedly communicated with a feeding port (36), the inside of the feeding port (36) is provided with a third plug-in valve (37), and the upper end of the material guide pipe (33) is provided with a second plug-in valve (35).

5. A vacuum distillation furnace for precious lead according to claim 4, characterized in that: The furnace cover (31) is fixedly installed on the top of the vacuum furnace body (21), and the material guide pipe (33) is located above the crucible (29).

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