High-purity purification equipment for producing electronic-grade yellow phosphorus

Abstract

The utility model discloses high-purity purification equipment for producing electronic-grade yellow phosphorus, and relates to the technical field of yellow phosphorus production. The high-purity purification equipment for electronic-grade yellow phosphorus production comprises a mounting shell and an auxiliary mechanism, an evaporation box is fixedly mounted at the top of the mounting shell, and a plurality of groups of atomizing nozzles and two groups of scraping plates are arranged in the evaporation box; the auxiliary mechanism comprises an atomization spraying mechanism and a stirring mechanism, the atomization spraying mechanism comprises a first transfer pump, a communicating pipe and a communicating box, the first transfer pump is fixedly installed at the top of the evaporation box, and the output end of the first transfer pump extends into the evaporation box and is fixedly provided with the communicating pipe. According to the yellow phosphorus atomizing device, liquid yellow phosphorus can be atomized and sprayed out through cooperative use of the first transfer pump, the communicating pipe, the communicating box, the atomizing nozzle, the baffle and the circulating pipeline, the residence time of the atomized yellow phosphorus can be prolonged through contact with the baffle, water in the atomized yellow phosphorus can be evaporated and discharged, and then the purity of a product can be improved.

Description

Technical Field

[0001] This utility model relates to the field of yellow phosphorus production technology, and in particular to a high-purity purification device for the production of electronic-grade yellow phosphorus. Background Technology

[0002] Electronic-grade yellow phosphorus is a core material in the semiconductor industry chain. It is mainly used for the epitaxial growth of compound semiconductors such as gallium phosphide and indium phosphide, as well as the synthesis of high-purity phosphine gas.

[0003] Currently, in the high-purity purification process of yellow phosphorus, incomplete dehydration and drying of yellow phosphorus may lead to distillation failure and product contamination. Furthermore, the presence of moisture can cause corrosion, generate oxyacid contaminants, and interfere with distillation separation, resulting in substandard product purity. Utility Model Content

[0004] The purpose of this invention is to provide a high-purity purification device for the production of electronic-grade yellow phosphorus, which can solve the problems mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-purity purification device for the production of electronic-grade yellow phosphorus, comprising:

[0006] The housing is installed, and the top of the housing is fixedly installed with an evaporator. The evaporator is equipped with multiple sets of atomizing nozzles and two sets of scrapers inside.

[0007] The auxiliary mechanism includes an atomizing spray mechanism and a stirring mechanism. The atomizing spray mechanism includes a first pump, a connecting pipe and a connecting box. The first pump is fixedly installed on the top of the evaporator. The output end of the first pump extends into the interior of the evaporator and is fixedly installed with a connecting pipe. One end of the connecting pipe is fixedly installed with a connecting box and connected to it.

[0008] Preferably, the stirring mechanism includes a motor, gears, a first rotating rod, and a second rotating rod. The motor is fixedly installed on the bottom inner side of the mounting housing, and the first rotating rod is rotatably installed on the bottom inner side of the mounting housing. There are two sets of gears. The output shaft of the motor and the outer wall of the first rotating rod are both fixedly installed with one set of gears. The two sets of gears mesh with each other. One end of the gear extends into the interior of the evaporator and the outer wall of the gear is fixedly installed with two sets of second rotating rods.

[0009] Preferably, the bottom of the connecting box is fixedly connected to and communicates with multiple sets of atomizing nozzles.

[0010] Preferably, one end of each of the two sets of rotating rods is fixedly connected to a set of scrapers, and the rotating rods are rotatably mounted to the evaporator.

[0011] Preferably, a distillation apparatus is fixedly installed at the bottom of the mounting housing, and a second pump is fixedly installed at the bottom inner side of the mounting housing. The output end of the second pump extends into the interior of the distillation apparatus, and the input end of the second pump extends into the interior of the evaporation chamber. An exhaust pipe is fixedly installed at the top of the evaporation chamber, and control valves are provided on the outer wall of the exhaust pipe and the input end of the second pump.

[0012] Preferably, the inner wall of the evaporator is fixedly installed with multiple sets of baffles, and the outer wall of the evaporator is fitted with a circulation pipe.

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

[0014] (1) The high-purity purification equipment for producing electronic-grade yellow phosphorus can atomize and spray liquid yellow phosphorus by using a combination of a pump, a connecting pipe, a connecting box, an atomizing nozzle, a baffle and a circulation pipe. Through contact with the baffle, the residence time of the atomized yellow phosphorus can be extended, and the water present in the atomized yellow phosphorus can be evaporated and discharged, thereby improving the purity of the product.

[0015] (2) The high-purity purification equipment for electronic-grade yellow phosphorus production uses a combination of motor, gear, rotating rod one, rotating rod two and scraper. The stirring mechanism can drive two sets of scrapers to rotate and clean the inner wall of the evaporator, so as to avoid the yellow phosphorus from coking and adhering to the inner wall of the evaporator, and avoid the situation of coking yellow phosphorus contaminating the product, thereby improving the purity of the product. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0017] Figure 1 This is a front perspective view of the present invention;

[0018] Figure 2 This is a perspective view of the evaporator box of this utility model, in cross-section.

[0019] Figure 3 This is an enlarged view of part A of this utility model.

[0020] Reference numerals in the attached drawings: 1. Mounting housing; 2. Evaporator; 3. Atomizing spray mechanism; 301. Pump 1; 302. Connecting pipe; 303. Connecting box; 4. Atomizing nozzle; 5. Baffle; 6. Stirring mechanism; 601. Motor; 602. Gear; 603. Rotating rod 1; 604. Rotating rod 2; 7. Scraper; 8. Pump 2; 9. Distillation device; 10. Circulation pipe; 11. Exhaust pipe. Detailed Implementation

[0021] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0022] Please see Figure 1-3 This utility model provides a technical solution: a high-purity purification device for the production of electronic-grade yellow phosphorus, including a mounting shell 1 and an auxiliary mechanism. An evaporation box 2 is fixedly installed on the top of the mounting shell 1. The evaporation box 2 is equipped with multiple sets of atomizing nozzles 4 and two sets of scrapers 7 inside.

[0023] The auxiliary mechanism includes an atomizing spray mechanism 3 and a stirring mechanism 6. The atomizing spray mechanism 3 includes a pump 301, a connecting pipe 302, and a connecting box 303. The pump 301 is fixedly installed on the top of the evaporation box 2. The output end of the pump 301 extends into the interior of the evaporation box 2 and is fixedly installed with the connecting pipe 302. One end of the connecting pipe 302 is fixedly installed with and connected to the connecting box 303. The liquid yellow phosphorus can be atomized and sprayed out. Through contact with the baffle 5, the residence time of the atomized yellow phosphorus can be extended, and the water present in the atomized yellow phosphorus can be evaporated and discharged, thereby improving the purity of the product.

[0024] The stirring mechanism 6 includes a motor 601, gears 602, a first rotating rod 603, and a second rotating rod 604. The motor 601 is fixedly installed on the bottom inner side of the mounting housing 1, and the first rotating rod 603 is rotatably installed on the bottom inner side of the mounting housing 1. There are two sets of gears 602. The output shaft of the motor 601 and the outer wall of the first rotating rod 603 are both fixedly installed with one set of gears 602. The two sets of gears 602 mesh with each other. One end of the gear 602 extends into the interior of the evaporator 2, and two sets of second rotating rods 604 are fixedly installed on the outer wall. The stirring mechanism 6 can drive the two sets of scrapers 7 to rotate and clean the inner wall of the evaporator 2, preventing yellow phosphorus from coking and adhering to the inner wall of the evaporator 2, avoiding the situation where coked yellow phosphorus contaminates the product, and improving the purity of the product.

[0025] The bottom of the connecting box 303 is fixedly connected to and communicates with multiple sets of atomizing nozzles 4.

[0026] One end of each of the two sets of rotating rods 604 is fixedly connected to a set of scrapers 7, and the rotating rod 603 is rotatably installed with the evaporator 2.

[0027] A distillation apparatus 9 is fixedly installed at the bottom of the mounting housing 1. A second pump 8 is fixedly installed at the bottom inner side of the mounting housing 1. The output end of the second pump 8 extends into the interior of the distillation apparatus 9, and the input end of the second pump 8 extends into the interior of the evaporation chamber 2. An exhaust pipe 11 is fixedly installed at the top of the evaporation chamber 2. Control valves are provided on the outer wall of the exhaust pipe 11 and the input end of the second pump 8.

[0028] Multiple sets of baffles 5 are fixedly installed on the inner wall of the evaporator 2, and a circulation pipe 10 is fitted on the outer wall of the evaporator 2.

[0029] Working principle: When operation is required, both ends of the circulation pipe 10 are connected to the circulation equipment, allowing hot oil to circulate inside the circulation pipe 10 and heat the evaporator 2. Liquid yellow phosphorus is connected to the input end of the pump 301. Starting the pump 301 allows the liquid yellow phosphorus to be transported through the connecting pipe 302 to the connecting box 303, where it is atomized and sprayed out through multiple atomizing nozzles 4. The atomized phosphorus comes into contact with the baffle 5, extending its residence time and evaporating any moisture present within it. The control valve on the exhaust pipe 11 is then controlled. The system can drain and collect the moisture. At this time, the start motor 601 is controlled, and through two sets of meshing gears 602, the rotating rod 603 drives the two sets of rotating rods 604 to rotate, which in turn drives the two sets of scrapers 7 to rotate and clean the inner wall of the evaporator 2, so as to prevent the yellow phosphorus from coking and adhering to the inner wall of the evaporator 2 and causing contamination to the product. After a period of time, the control valve at the input end of the pump 8 is controlled and the pump 8 is started, which can transport the liquid yellow phosphorus after the moisture is removed to the distillation device 9. The yellow phosphorus can be further purified by distillation through the distillation device 9.

[0030] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A high-purity purification device for the production of electronic-grade yellow phosphorus, characterized in that, include: The housing (1) is installed, and the top of the housing (1) is fixedly installed with an evaporator (2). The evaporator (2) is equipped with multiple sets of atomizing nozzles (4) and two sets of scrapers (7). The auxiliary mechanism includes an atomizing spray mechanism (3) and a stirring mechanism (6). The atomizing spray mechanism (3) includes a first pump (301), a connecting pipe (302) and a connecting box (303). The first pump (301) is fixedly installed on the top of the evaporator (2). The output end of the first pump (301) extends into the interior of the evaporator (2) and is fixedly installed with the connecting pipe (302). One end of the connecting pipe (302) is fixedly installed with the connecting box (303) and connected to it.

2. The high-purity purification equipment for producing electronic-grade yellow phosphorus according to claim 1, characterized in that: The stirring mechanism (6) includes a motor (601), a gear (602), a rotating rod one (603) and a rotating rod two (604). The motor (601) is fixedly installed on the bottom inner side of the mounting housing (1). The rotating rod one (603) is rotatably installed on the bottom inner side of the mounting housing (1). There are two sets of gears (602). The output shaft of the motor (601) and the outer wall of the rotating rod one (603) are both fixedly installed with a set of gears (602). The two sets of gears (602) mesh with each other. One end of the gear (602) extends into the interior of the evaporator (2) and the outer wall of the gear two (604) is fixedly installed with two sets of rotating rods (604).

3. The high-purity purification equipment for producing electronic-grade yellow phosphorus according to claim 2, characterized in that: The bottom of the connecting box (303) and multiple sets of atomizing nozzles (4) are fixedly connected and communicate with each other.

4. The high-purity purification equipment for producing electronic-grade yellow phosphorus according to claim 3, characterized in that: One end of each of the two sets of rotating rods (604) is fixedly connected to a set of scrapers (7), and rotating rod (603) is rotatably installed with the evaporator (2).

5. The high-purity purification equipment for producing electronic-grade yellow phosphorus according to claim 4, characterized in that: A distillation apparatus (9) is fixedly installed at the bottom of the mounting housing (1). A second pump (8) is fixedly installed at the bottom inner side of the mounting housing (1). The output end of the second pump (8) extends into the interior of the distillation apparatus (9). The input end of the second pump (8) extends into the interior of the evaporator (2). An exhaust pipe (11) is fixedly installed at the top of the evaporator (2). Control valves are provided on the outer wall of the exhaust pipe (11) and the input end of the second pump (8).

6. The high-purity purification equipment for producing electronic-grade yellow phosphorus according to claim 5, characterized in that: The inner wall of the evaporator (2) is fixedly equipped with multiple sets of baffles (5), and the outer wall of the evaporator (2) is fitted with a circulation pipe (10).

Images