Dechlorination device for high-purity arsenic production

Abstract

The utility model relates to a kind of dechlorination device for high-purity arsenic production, including main body mechanism, adsorption mechanism, heat dissipation mechanism, material receiving mechanism, the adsorption mechanism is located inside main body mechanism, the heat dissipation mechanism is located main body mechanism side, the material receiving mechanism is located main body mechanism side, the utility model passes through feed pipe and adds chlorine-containing impurity arsenic raw material to adsorption tank by motor driving heating disc rotation uses centrifugal force and evenly disperses to heating disc on raw material, raw material is heated to 620 DEG C to 650 DEG C by heating disc, ensure that chlorine-containing impurity arsenic raw material completely sublimes, avoid liquid residue, after sublimation, arsenic steam is adsorbed in raw material by five layer MOFs adsorption layer in adsorption tank, after adsorption, arsenic steam is entered into material receiving tank by steam pipeline, while steam pipeline is equipped with condenser pipeline, and arsenic steam is cooled, temperature 100 DEG C to 150 DEG C is condensed as solid high-purity arsenic.

Description

Technical Field

[0001] This utility model relates to the field of high-purity arsenic, specifically a dechlorination device for the production of high-purity arsenic. Background Technology

[0002] High-purity arsenic refers to elemental arsenic materials with a purity of 99.999% (5N) or higher, exhibiting typical semiconductor properties. Its crystal structure is predominantly gray arsenic (α-As), displaying a metallic luster, with a melting point of 817℃. It is stable at room temperature but easily sublimates at high temperatures. In the semiconductor field, high-purity arsenic is mainly used as an n-type dopant for modifying silicon and germanium materials, or to synthesize compound semiconductors such as gallium arsenide (GaAs) and indium arsenide (InAs) with gallium and indium. The latter are widely used in high-frequency transistors, lasers, solar cells, and other devices. Its optoelectronic applications cover fiber optic communication, LED lighting, and high-speed integrated circuit manufacturing; in the photovoltaic industry, it can improve the efficiency of cadmium telluride batteries. Furthermore, it is used in scientific research for the development of new alloys, and in the pharmaceutical field, after special processing, it can be used to treat leukemia.

[0003] As disclosed in CN205294870U, a dechlorination device for the production of high-purity arsenic is included, comprising: a dechlorination tower; the interior of the dechlorination tower, from bottom to top, consists of a storage section, a packing section, and a cooling section; the storage section is provided with a feed inlet; an orifice plate is provided between the storage section and the packing section; the packing section is provided with packing material, the packing material including arsenic blocks; a fractionation port is provided between the packing section and the cooling section; the cooling section is provided with a cooling device; and a gas outlet is provided at the end of the cooling section. In this application, the liquid arsenic trichloride generated by the chlorination of crude arsenic is first heated in the storage section to form steam. The chlorine in the rising steam reacts with the arsenic blocks in the packing section to generate arsenic trichloride. Then, the rising steam is condensed in the cooling section, and the condensed liquid arsenic trichloride is returned to the storage section. After liquid arsenic trichloride is evaporated and refluxed for a certain period of time, the fractionation port is opened to obtain a relatively pure arsenic trichloride distillate. However, the purity of the extracted arsenic is not high during use. Therefore, we propose a dechlorination device for the production of high-purity arsenic to solve the problem of low extraction purity of traditional equipment. Utility Model Content

[0004] The purpose of this invention is to provide a dechlorination device for the production of high-purity arsenic, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A dechlorination device for producing high-purity arsenic includes a main body, an adsorption mechanism, a heat dissipation mechanism, and a receiving mechanism. The adsorption mechanism is located inside the main body, the heat dissipation mechanism is located on one side of the main body, and the receiving mechanism is located on one side of the main body. The main body includes an adsorption tank, a support leg, a tank top, a rubber ring, a feed pipe, a steam pipe, a motor housing, a first observation port, and a feed valve. The support leg is fixedly installed at the bottom of the adsorption tank, the adsorption tank is fixedly installed at the top of the support leg, the rubber ring is fixedly installed at the top of the adsorption tank, the tank top is installed at the top of the rubber ring, the feed pipe is fixedly installed at the lower left side of the adsorption tank, the steam pipe is fixedly installed at the top of the tank top, the motor housing is fixedly installed at the bottom of the adsorption tank, the first observation port is fixedly installed at the front of the adsorption tank, and the feed valve is fixedly installed in the middle of the feed pipe.

[0007] Preferably, the adsorption mechanism includes a motor, a drive shaft, a heating plate, an MFOs adsorption layer, a control panel, a temperature sensor, and a conduit. The motor is fixedly installed at the bottom of the adsorption tank and located inside the motor housing, and the drive shaft is fixedly installed at the top of the motor.

[0008] Preferably, the heat dissipation mechanism includes a heat dissipation box, a ventilation grille, a fan, a condensation pipe, a metal casing, a cold water pipe, and a hot water pipe. The ventilation grille is fixedly installed at the front of the heat dissipation box, and the fan is fixedly installed inside the heat dissipation box.

[0009] Preferably, the receiving mechanism includes a receiving tank, a second observation port, a receiving valve, and a discharge pipe. The receiving tank is fixedly installed at one end of the steam pipe, and the second observation port is fixedly installed at the front of the receiving tank.

[0010] Preferably, the heating plate is fixedly installed on the top of the drive shaft, the MFOs adsorption layer is movably installed inside the adsorption tank, the control panel is fixedly installed outside the adsorption tank and connected to the heat dissipation box and the motor through a conduit, and the temperature sensor is fixedly installed at the bottom of the steam pipe and located above the receiving tank.

[0011] Preferably, the condenser pipe is fixedly installed inside the heat sink and the metal casing and located behind the fan; the metal casing is fixedly installed outside the steam pipe; the cold water pipe is fixedly installed between the metal casing and the heat sink and located above the hot water pipe; and the hot water pipe is fixedly installed between the metal casing and the heat sink and located above the receiving tank.

[0012] Preferably, the receiving valve is fixedly installed at the lower part of the discharge pipe, and the discharge pipe is fixedly installed at the lower end of the receiving tank.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This dechlorination device for the production of high-purity arsenic heats the raw material to 620 to 650°C via a heating plate, causing it to sublimate. The arsenic vapor containing chlorine impurities after sublimation is adsorbed by a five-layer MFOs adsorption layer. The adsorbed arsenic vapor is then cooled to 100 to 150°C via a condenser pipe and condensed into solid high-purity arsenic, which is collected in a receiving tank. Simultaneously, the temperature of the heating plate and the temperature inside the heat dissipation box are monitored in real time via a control panel and a temperature sensor to adjust the speed of the heating plate and fan. The MFOs adsorption layer inside the adsorption tank is movable and can be easily replaced.

[0015] 2. This dechlorination device for the production of high-purity arsenic allows for real-time observation of the internal operation and collection status of the equipment through a first observation port on the adsorption tank and a second observation port on the receiving tank. The adsorption tank is equipped with a rubber ring to seal the gap between the adsorption tank and the top of the tank to prevent arsenic vapor from overflowing and causing poisoning. At the same time, the feed pipe is equipped with a feed valve to prevent arsenic vapor from flowing back into the feed pipe and causing arsenic vapor to overflow. Attached Figure Description

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

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the adsorption mechanism of this utility model;

[0019] Figure 4 This is a schematic diagram of the material receiving mechanism of this utility model.

[0020] In the diagram: 100, Adsorption tank; 101, Support leg; 102, Tank top; 103, Rubber ring; 104, Feed pipe; 105, Steam pipe; 106, Motor housing; 107, First observation port; 108, Feed valve; 200, Motor; 201, Drive shaft; 202, Heating plate; 203, MFOs adsorption layer; 204, Control panel; 205, Temperature sensor; 206, Conduit; 300, Heat sink; 301, Ventilation grille; 302, Fan; 303, Condensation pipe; 304, Metal housing; 305, Cold water pipe; 306, Hot water pipe; 400, Receiving tank; 401, Second observation port; 402, Receiving valve; 403, Discharge pipe. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-4 As shown, this utility model provides a technical solution:

[0023] A dechlorination device for high-purity arsenic production includes a main body, an adsorption mechanism, a heat dissipation mechanism, and a receiving mechanism. The adsorption mechanism is located inside the main body, the heat dissipation mechanism is located on one side of the main body, and the receiving mechanism is located on one side of the main body. The main body includes an adsorption tank 100, a support leg 101, a tank top 102, a rubber ring 103, a feed pipe 104, a steam pipe 105, a motor housing 106, a first observation port 107, and a feed valve 108. The support leg 101 is fixedly installed at the bottom of the adsorption tank 100. The adsorption tank 100 is fixedly installed on the top of the support leg 101. The rubber ring 103 is fixedly installed on the top of the tank body of the adsorption tank 100. The tank top 102 is installed on the top of the rubber ring 103. The feed pipe 104 is fixedly installed on the lower left side of the adsorption tank 100. The steam pipe 105 is fixedly installed on the top of the tank top 102. The motor housing 106 is fixedly installed on the bottom of the adsorption tank 100. The first observation port 107 is fixedly installed on the front of the adsorption tank 100. The feed valve 108 is fixedly installed in the middle of the feed pipe 104.

[0024] In this example, preferably, the adsorption mechanism includes a motor 200, a drive shaft 201, a heating plate 202, an MFOs adsorption layer 203, a control panel 204, a temperature sensor 205, and a conduit 206. The motor 200 is fixedly installed at the bottom of the adsorption tank 100 and is located inside the motor housing 106. The drive shaft 201 is fixedly installed at the top of the motor 200.

[0025] In this example, preferably, the heat dissipation mechanism includes a heat dissipation box 300, a ventilation grille 301, a fan 302, a condensation pipe 303, a metal casing 304, a cold water pipe 305, and a hot water pipe 306. The ventilation grille 301 is fixedly installed at the front of the heat dissipation box 300, and the fan 302 is fixedly installed inside the heat dissipation box 300.

[0026] In this example, preferably, the receiving mechanism includes a receiving tank 400, a second observation port 401, a receiving valve 402, and a discharge pipe 403. The receiving tank 400 is fixedly installed at one end of the steam pipe 105, and the second observation port 401 is fixedly installed at the front of the receiving tank 400.

[0027] In this example, preferably, the heating plate 202 is fixedly installed on the top of the drive shaft 201, the MFOs adsorption layer 203 is movably installed inside the adsorption tank 100, the control panel 204 is fixedly installed outside the adsorption tank 100 and connected to the heat sink 300 and the motor 200 through the conduit 206, and the temperature sensor 205 is fixedly installed at the lower part of the steam pipe 105 and located above the receiving tank 400.

[0028] In this example, preferably, the condenser pipe 303 is fixedly installed inside the heat sink 300 and the metal casing 304 and located behind the fan 302; the metal casing 304 is fixedly installed outside the steam pipe 105; the cold water pipe 305 is fixedly installed between the metal casing 304 and the heat sink 300 and located above the hot water pipe 306; and the hot water pipe 306 is fixedly installed between the metal casing 304 and the heat sink 300 and located above the receiving tank 400.

[0029] In this example, preferably, the receiving valve 402 is fixedly installed at the lower part of the discharge pipe 403, and the discharge pipe 403 is fixedly installed at the lower end of the receiving tank 400.

[0030] In this embodiment, a dechlorination device for the production of high-purity arsenic heats the raw material to 620-650°C via a heating plate 202, causing it to sublimate. The arsenic vapor containing chlorine impurities after sublimation is adsorbed by a five-layer MFOs adsorption layer 203. The adsorbed arsenic vapor is then cooled to 100-150°C via a condenser pipe 303 and condensed into solid high-purity arsenic, which is collected in a receiving tank 400. Simultaneously, the temperature of the heating plate 202 and the temperature inside the heat dissipation box 300 are monitored in real time via a control panel 204 and a temperature sensor 205 to adjust the speed of the heating plate 202 and the fan 302. The MFOs adsorption layer 203 is movable inside the adsorption tank 100, allowing for easy replacement.

[0031] The internal operation and collection status of the equipment can be observed in real time through the first observation port 107 on the adsorption tank 100 and the second observation port 401 on the receiving tank 400. A rubber ring 103 is provided on the adsorption tank 100 to seal the gas between the adsorption tank 100 and the tank top 102 to prevent arsenic vapor from overflowing and causing poisoning. At the same time, the feed valve 108 is provided on the feed pipe 104 to prevent arsenic vapor from flowing back into the feed pipe 104 and causing arsenic vapor to overflow.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A dechlorination device for the production of high-purity arsenic, comprising a main body, an adsorption mechanism, a heat dissipation mechanism, and a material receiving mechanism, characterized in that: The adsorption mechanism is located inside the main body, the heat dissipation mechanism is located on one side of the main body, and the material receiving mechanism is located on one side of the main body. The main body includes an adsorption tank (100), a support leg (101), a tank top (102), a rubber ring (103), a feed pipe (104), a steam pipe (105), a motor housing (106), a first observation port (107), and a feed valve (108). The support leg (101) is fixedly installed at the bottom of the adsorption tank (100), and the adsorption tank (100) is fixedly installed on the top of the support leg (101). At the end, the rubber ring (103) is fixedly installed at the top of the adsorption tank (100), the tank top (102) is installed at the top of the rubber ring (103), the feed pipe (104) is fixedly installed at the lower left side of the adsorption tank (100), the steam pipe (105) is fixedly installed at the top of the tank top (102), the motor housing (106) is fixedly installed at the bottom of the adsorption tank (100), the first observation port (107) is fixedly installed at the front of the adsorption tank (100), and the feed valve (108) is fixedly installed in the middle of the feed pipe (104).

2. The dechlorination device for high-purity arsenic production according to claim 1, characterized in that: The adsorption mechanism includes a motor (200), a drive shaft (201), a heating plate (202), an MFOs adsorption layer (203), a control panel (204), a temperature sensor (205), and a conduit (206). The motor (200) is fixedly installed at the bottom of the adsorption tank (100) and is located inside the motor housing (106). The drive shaft (201) is fixedly installed at the top of the motor (200).

3. The dechlorination device for high-purity arsenic production according to claim 1, characterized in that: The heat dissipation mechanism includes a heat dissipation box (300), a ventilation grille (301), a fan (302), a condensation pipe (303), a metal shell (304), a cold water pipe (305), and a hot water pipe (306). The ventilation grille (301) is fixedly installed at the front of the heat dissipation box (300), and the fan (302) is fixedly installed inside the heat dissipation box (300).

4. A dechlorination device for the production of high-purity arsenic according to claim 1, characterized in that: The receiving mechanism includes a receiving tank (400), a second observation port (401), a receiving valve (402), and a discharge pipe (403). The receiving tank (400) is fixedly installed at one end of the steam pipe (105), and the second observation port (401) is fixedly installed at the front of the receiving tank (400).

5. A dechlorination device for the production of high-purity arsenic according to claim 2, characterized in that: The heating plate (202) is fixedly installed on the top of the drive shaft (201), the MFOs adsorption layer (203) is movably installed inside the adsorption tank (100), the control panel (204) is fixedly installed outside the adsorption tank (100) and connected to the heat sink (300) and the motor (200) through a conduit (206), and the temperature sensor (205) is fixedly installed at the bottom of the steam pipe (105) and located above the receiving tank (400).

6. A dechlorination device for the production of high-purity arsenic according to claim 3, characterized in that: The condenser pipe (303) is fixedly installed inside the heat sink (300) and the metal casing (304) and located behind the fan (302). The metal casing (304) is fixedly installed outside the steam pipe (105). The cold water pipe (305) is fixedly installed between the metal casing (304) and the heat sink (300) and located above the hot water pipe (306). The hot water pipe (306) is fixedly installed between the metal casing (304) and the heat sink (300) and located above the receiving tank (400).

7. A dechlorination device for the production of high-purity arsenic according to claim 4, characterized in that: The receiving valve (402) is fixedly installed at the lower part of the discharge pipe (403), and the discharge pipe (403) is fixedly installed at the lower end of the receiving tank (400).

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