Vacuum sublimation device for metal arsenic

Abstract

The utility model relates to the technical field of metal arsenic production and processing, and discloses a metal arsenic vacuum sublimation device which comprises a supporting bottom plate and a device shell, and an annular plate is additionally arranged on the lower portion of the surface of the device shell. Air inlet holes are evenly formed in the periphery of the surface of the air suction pipe, and an air guide groove is formed in an inner cavity of the annular plate and communicates with the air outlet end of the bottom of the air suction pipe; and the telescopic pipe body communicates with the air outlet end of the air guide groove, the air outlet end of the telescopic pipe body communicates with a suction fan, and the suction fan is located in the center of the lower portion of the back face of the supporting bottom plate. According to the metal arsenic vacuum sublimation device, an annular plate drives an air suction pipe to move right above the top of a supporting bottom plate, a suction fan enables an air inlet hole of the air suction pipe to generate suction force through a telescopic pipe body and an air guide groove, arsenic steam leaked from a device shell is sucked in, and after the arsenic steam is guided into corresponding equipment through an exhaust pipe of the suction fan, the arsenic steam is sucked out. By adopting the mode, the speed of the arsenic steam drifting around is effectively slowed down.

Description

Technical Field

[0001] The utility model relates to the technical field of metal arsenic production and processing, in particular to a metal arsenic vacuum sublimation device. Background Art

[0002] Arsenic metal, commonly known as arsenic, has the element symbol As. It is a non-metallic element located in the 4th period and the VA group in the periodic table of chemical elements, with an atomic number of 33. The element exists in three allotropes: gray arsenic, black arsenic, and yellow arsenic. Arsenic is widely present in nature, and hundreds of arsenic minerals have been discovered. Arsenic and its compounds are used in pesticides, herbicides, insecticides, and many kinds of alloys. Its compound arsenic trioxide is called arsenic trioxide, which is a highly toxic substance. In the production and processing of metallic arsenic, in order to improve the purity of metallic arsenic, a vacuum sublimation device is required for processing.

[0003] Common metal arsenic vacuum sublimation devices include a heating furnace, a vacuum tank and a sublimation inner sleeve. A circulating water jacket is provided on the top of the vacuum tank. The vacuum tank body below the circulating water jacket is arranged in the heating furnace. The sublimation inner sleeve is arranged in the vacuum tank. The sublimation inner sleeve includes a loading crucible at the bottom, a high-purity arsenic implantation condenser in the middle and a tail gas impurity condensation collector at the top. A high boiling point and high melting point element condensation purification ring is provided between the loading crucible and the high-purity arsenic implantation condenser. The arsenic raw material is heated in a vacuum to sublimate it into a gaseous state, and then the sublimated arsenic gas is condensed into a solid state through a condensation device. This is the common structure and use of metal arsenic vacuum sublimation devices. In traditional metal arsenic vacuum sublimation devices, metal arsenic is a toxic substance. The device may produce harmful gases such as arsenic vapor during use. If it is not handled properly, it may affect the health of the operator. For some metal arsenic vacuum sublimation devices, operators need to wear personal protective equipment (such as protective clothing, gloves, masks, goggles, etc.) for protection when operating the device. However, in this method, although personal protective equipment can play a certain protective effect, if an accident occurs during the use of the device, the arsenic vapor in the device will leak, which will delay the operator's discovery of the accident and evacuation to a certain extent, and cannot effectively protect the personal safety of the operator. For this reason, a metal arsenic vacuum sublimation device is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a metal arsenic vacuum sublimation device to solve the above technical problems.

[0005] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a metal arsenic vacuum sublimation device, comprising:

[0006] A supporting bottom plate, and a device housing arranged at the top center of the supporting bottom plate, and an annular plate is added to the lower part of the surface of the device housing;

[0007] The air intake pipe is arranged around the top center of the annular plate, and air inlet holes are evenly opened around the surface of the air intake pipe. The inner cavity of the annular plate is provided with an air guide groove, which is connected with the bottom air outlet end of the air intake pipe;

[0008] The telescopic tube body is arranged at the rear end center of the bottom of the annular plate and is connected to the air outlet end of the air guide groove. The air outlet end of the telescopic tube body is connected to a suction fan, and the suction fan is located at the lower center of the back of the supporting base plate. The suction pipe is driven by the annular plate to move just above the top of the supporting base plate, and the suction fan generates suction at the air inlet of the suction pipe through the telescopic tube body and the air guide groove, sucking in the arsenic vapor leaked from the device shell, and introducing it into the corresponding equipment through the exhaust pipe of the suction fan, thereby slowing down the speed of the arsenic vapor drifting around, ensuring the evacuation time and safety of the operators. At the same time, the metal arsenic vacuum sublimation equipment is a common and mature equipment on the market, so it will not be described in detail.

[0009] Preferably, support legs are installed around the bottom of the support base plate, and drive motors are added at the centers of both sides of the bottom of the support base plate, and the drive motor is coaxially connected to a driving wheel, and the driving wheel is located directly below the bottom of the drive motor. The drive motor drives the driving wheel to rotate in the same direction and adjusts the direction of the driving wheel.

[0010] Preferably, one side of the driving wheel is meshed with a driven wheel, and the center of the driven wheel is coaxially connected to a threaded screw, and the centers of both sides of the annular plate are sleeved on the lower center of the surface of the threaded screw. The driving wheel drives the driven wheel to rotate in the same direction, and the driven wheel drives the threaded screw to rotate in the same direction, and the annular plate is lifted and lowered according to the direction of the threaded screw, so that the annular plate and its connection structure are moved to the place where the device leaks, thereby greatly slowing down the speed at which the arsenic vapor drifts around.

[0011] Preferably, the annular plate is composed of a right side plate and a left side plate, and connecting arc plates are installed on both sides of the center of the front and back sides of the right side plate and the left side plate, and connecting holes are opened in the outer centers of the connecting arc plates. After the connecting arc plates of the right side plate and the left side plate on the annular plate are fitted and connected, the corresponding structure is inserted into the connecting hole of the connecting arc plate for connection.

[0012] Preferably, a connecting rod is transversely inserted into the connecting hole of the connecting arc plate, and limiting grooves are provided around the outer sides of both ends of the connecting rod, and limiting columns are inserted into the limiting grooves at the rear end of the connecting rod. The connecting rod is inserted into the connecting hole to connect the two sets of connecting arc plates and their connecting structures, and the outer end of the connecting rod is prevented from separating due to self-rotation by the limiting column.

[0013] Preferably, a telescopic rod is installed at the back center of the limiting column, and the telescopic rod is connected to the corresponding positions on both sides of the center of the front and back of the annular plate, and the telescopic end of the telescopic rod is connected to the corresponding limiting column, and a compression spring is sleeved on the surface of the telescopic end of the telescopic rod. Under the action of the compression spring, the telescopic end of the telescopic rod drives the limiting column to fit tightly with the corresponding limiting groove on the connecting rod, thereby facilitating the connection, separation and installation operations between the limiting column and the connecting rod, and facilitating the disassembly of the annular plate when the device is overhauled.

[0014] Compared with the prior art, the utility model provides a metal arsenic vacuum sublimation device, which has the following beneficial effects:

[0015] 1. The metal arsenic vacuum sublimation device drives the suction pipe to move just above the top of the supporting bottom plate through the annular plate, and the suction fan generates suction at the air inlet of the suction pipe through the telescopic tube body and the air guide groove, sucking in the arsenic vapor leaked from the device shell, and introducing it into the corresponding equipment through the exhaust pipe of the suction fan. This method is adopted to slow down the speed of arsenic vapor drifting around, ensuring the evacuation time and safety of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the bottom portion of the support bottom plate and the annular plate of the utility model;

[0018] Figure 3 It is a schematic diagram of the internal section and partial enlarged structure of the annular plate of the utility model.

[0019] In the figure: 1. Support base plate; 2. Device housing; 3. Annular plate; 4. Suction pipe; 5. Threaded screw; 6. Driving motor; 7. Driving wheel; 8. Driven wheel; 9. Connecting arc plate; 10. Connecting plug rod; 11. Limiting column; 12. Telescopic rod; 13. Extrusion spring; 14. Air guide groove; 15. Telescopic tube body; 16. Suction fan; 17. Limiting groove. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] The utility model provides a technical solution, a metal arsenic vacuum sublimation device, comprising: Figure 1, a supporting base plate 1, and a device housing 2 arranged at the top center of the supporting base plate 1, and an annular plate 3 is added to the lower part of the surface of the device housing 2;

[0022] See also Figure 2 The air intake pipe 4 is arranged around the top center of the annular plate 3, and air inlet holes are evenly opened around the surface of the air intake pipe 4. The inner cavity of the annular plate 3 is provided with an air guide groove 14, which is connected to the bottom air outlet end of the air intake pipe 4;

[0023] The telescopic tube body 15 is arranged at the rear end center of the bottom of the annular plate 3 and is connected to the air outlet end of the air guide groove 14. The air outlet end of the telescopic tube body 15 is connected to a suction fan 16, and the suction fan 16 is located at the lower center of the back of the supporting base plate 1. The suction pipe 4 is driven by the annular plate 3 to move just above the top of the supporting base plate 1, and the suction fan 16 generates suction at the air inlet of the suction pipe 4 through the telescopic tube body 15 and the air guide groove 14, sucking the arsenic vapor leaked from the device housing 2, and introducing it into the corresponding equipment such as storage equipment or filtering equipment through the exhaust pipe of the suction fan 16, thereby slowing down the speed of the arsenic vapor drifting around, ensuring the evacuation time and safety of the operator. At the same time, the metal arsenic vacuum sublimation equipment is a common and mature equipment on the market, so it will not be described in detail.

[0024] Support legs are installed around the bottom of the support base plate 1, and a driving motor 6 is added to the center of both sides of the bottom of the support base plate 1. The driving motor 6 is coaxially connected to a driving wheel 7, and the driving wheel 7 is located directly below the bottom of the driving motor 6. The driving motor 6 drives the driving wheel 7 to rotate in the same direction and adjusts the direction of the driving wheel 7. A driven wheel 8 is meshed on one side of the driving wheel 7, and a threaded screw 5 is coaxially connected to the center of the driven wheel 8. The centers of both sides of the annular plate 3 are sleeved on the lower center of the surface of the threaded screw 5. The driving wheel 7 drives the driven wheel 8 to rotate in the same direction, and the driven wheel 8 drives the threaded screw 5 to rotate in the same direction. The annular plate 3 is lifted and lowered according to the direction of the threaded screw 5, so that the annular plate 3 and its connection structure are moved to the leakage point of the device, thereby greatly slowing down the speed of arsenic vapor drifting around.

[0025] See also Figure 3The annular plate 3 is composed of a right side plate and a left side plate, and connecting arc plates 9 are installed on both sides of the center of the front and rear back of the right side plate and the left side plate, and connecting holes are opened in the outer center of the connecting arc plates 9. After the connecting arc plates 9 of the right side plate and the left side plate on the annular plate 3 are fitted and connected, the corresponding structure is inserted into the connecting holes of the connecting arc plates 9 for connection. Connecting rods 10 are inserted horizontally in the connecting holes of the connecting arc plates 9, and limiting grooves 17 are opened around the outer sides of both ends of the connecting rods 10, and limiting columns 11 are inserted in the limiting grooves 17 at the rear end of the connecting rods 10. The connecting rods 10 are inserted into the connecting holes to connect the two sets of connecting arc plates 9 and their connecting structures, and the outer ends of the connecting rods 10 are prevented from separating due to self-rotation by the limiting columns 11. A telescopic rod 12 is installed at the center of the back of the limiting column 11, and the telescopic rod 12 is connected to the corresponding positions on both sides of the center of the front and back of the annular plate 3. The telescopic end of the telescopic rod 12 is connected to the corresponding limiting column 11, and a compression spring 13 is sleeved on the surface of the telescopic end of the telescopic rod 12. Under the action of the compression spring 13, the telescopic end of the telescopic rod 12 drives the limiting column 11 to fit tightly with the corresponding limiting groove 17 on the connecting rod 10, thereby facilitating the connection, separation and installation operations between the limiting column 11 and the connecting rod 10, and facilitating the disassembly of the annular plate 3 when the device is overhauled.

[0026] In this solution: the driving motor 6 drives the active wheel 7 to rotate in the same direction, the active wheel 7 drives the driven wheel 8 to rotate in the same direction, the driven wheel 8 drives the threaded screw 5 to rotate in the same direction, and the annular plate 3 is lifted and lowered according to the direction of the threaded screw 5, and the suction pipe 4 is driven by the annular plate 3 to move just above the top of the supporting base plate 1, and the annular plate 3 and its connecting structure are moved to the place where the device leaks, and the suction fan 16 generates suction at the air inlet of the suction pipe 4 through the telescopic tube body 15 and the air guide groove 14, sucks in the arsenic vapor leaked from the device shell 2, and introduces it into the corresponding equipment such as storage equipment or filtering equipment through the exhaust pipe of the suction fan 16, thereby slowing down the speed at which the arsenic vapor drifts around. After the connecting arc plates 9 of the right side plate and the left side plate on the annular plate 3 are fitted together, the connecting rod 10 is inserted into the connecting hole to connect the two sets of connecting arc plates 9 and their connecting structures. The telescopic end of the telescopic rod 12 drives the limiting column 11 to fit tightly with the corresponding limiting groove 17 on the connecting rod 10 under the action of the extrusion spring 13, thereby facilitating the connection, separation and installation operations between the limiting column 11 and the connecting rod 10.

[0027] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A metal arsenic vacuum sublimation device, characterized in that: include: A supporting base plate (1), and a device housing (2) arranged at the top center of the supporting base plate (1), and an annular plate (3) is provided at the lower part of the surface of the device housing (2); The air intake pipe (4) is arranged around the top center of the annular plate (3), and air intake holes are evenly opened around the surface of the air intake pipe (4). The inner cavity of the annular plate (3) is provided with an air guide groove (14) which is connected to the bottom air outlet end of the air intake pipe (4); The telescopic tube body (15) is arranged at the rear end center of the bottom of the annular plate (3) and is connected to the air outlet end of the air guide groove (14). The air outlet end of the telescopic tube body (15) is connected to a suction fan (16), and the suction fan (16) is located at the lower center of the back side of the supporting base plate (1).

2. The metal arsenic vacuum sublimation device according to claim 1, characterized in that: Support legs are installed around the bottom of the support base plate (1), and drive motors (6) are added at the centers of both sides of the bottom of the support base plate (1). The drive motor (6) is coaxially connected to a driving wheel (7), and the driving wheel (7) is located directly below the bottom of the drive motor (6).

3. The metal arsenic vacuum sublimation device according to claim 2, characterized in that: One side of the driving wheel (7) is meshed with a driven wheel (8), and the center of the driven wheel (8) is coaxially connected to a threaded screw (5), and the centers of both sides of the annular plate (3) are sleeved on the lower center of the surface of the threaded screw (5).

4. The metal arsenic vacuum sublimation device according to claim 1, characterized in that: The annular plate (3) is composed of a right side plate and a left side plate, and connecting arc plates (9) are installed on both sides of the center of the front and rear back surfaces of the right side plate and the left side plate, and connecting holes are opened at the outer centers of the connecting arc plates (9).

5. The metal arsenic vacuum sublimation device according to claim 4, characterized in that: A connecting rod (10) is transversely inserted into the connecting hole of the connecting arc plate (9), and limiting grooves (17) are arranged around the outer sides of both ends of the connecting rod (10), and a limiting column (11) is inserted into the limiting groove (17) at the rear end of the connecting rod (10).

6. The metal arsenic vacuum sublimation device according to claim 5, characterized in that: A telescopic rod (12) is installed at the back center of the limiting column (11), and the telescopic rod (12) is connected to the corresponding positions on both sides of the center of the front and back sides of the annular plate (3). The telescopic end of the telescopic rod (12) is connected to the corresponding limiting column (11), and a compression spring (13) is sleeved on the surface of the telescopic end of the telescopic rod (12).

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