CN212975137U

CN212975137U - Sodium iodide preparation facilities

Info

Publication number: CN212975137U
Application number: CN202021706555.5U
Authority: CN
Inventors: 项仙中
Original assignee: Jiangxi Shengdi Technology Co Ltd
Current assignee: Jiangxi Shengdi Technology Co Ltd
Priority date: 2020-08-17
Filing date: 2020-08-17
Publication date: 2021-04-16
Anticipated expiration: 2030-08-17

Abstract

The utility model discloses a sodium iodide preparation facilities, it includes the sodium hydroxide storehouse, steam treatment device, hydroiodic acid solution tank, hydroiodic acid liquid delivery pump, heat exchanger, the Oslo evaporation crystallizer, sodium hydroxide solid delivery pump, the retort, sodium iodide liquid delivery pump, a filter, the clean water pump, the clean water basin, central controller, the retort is cavity cylinder stainless steel construction, the installation is fixed with agitator motor above it, it is inside to go up the bottom surface and is equipped with the relief valve, the sodium hydroxide entry, the hydroiodic acid entry, inside side-mounting has pressure monitor, ring heater, inside installs temperature monitor in the bottom surface down, the liquid collecting tray, the agitator motor below is connected with the stirring rake, the stirring rake is located inside the retort, and can be rotatory under the agitator motor drive. The beneficial effects of the utility model are that: the automatic feeding device is reasonable in structure, strong in practicability, good in stability, high in automation degree, high in raw material utilization rate, good in preparation efficiency, low in energy consumption and free of sewage.

Description

Sodium iodide preparation facilities

Technical Field

The utility model relates to a sodium iodide preparation facilities belongs to chemical industry equipment technical field.

Background

Sodium iodide, molecular formula: NaI, molecular weight: 149.9 in the form of white deliquescent crystals or granules, including anhydrate, dihydrate and pentahydrate. The water can be slowly absorbed by 5% in the damp air, and the free iodine can be slowly released, and the yellow iodine becomes yellow, the relative density is 3.6777, the melting point is 660 ℃, the dissolving heat is 23.60Kj/mol, the boiling point is 1304 ℃, the iodine is dissolved in water, and the ethanol, the acetone, the glycerol and the water solution are acidic. It is used as raw material for iodine production, and is used in medicine and photography. The acidic solution of sodium iodide shows reducibility due to the formation of hydroiodic acid.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model lies in providing sodium iodide preparation facilities, and its is rational in infrastructure, and the practicality is strong, and stability is good, and degree of automation is high, and utilization ratio of raw materials is high, and preparation efficiency is good, and the energy consumption is low, and does not have sewage to produce.

The utility model discloses a following scheme realizes: the sodium iodide preparation device comprises a sodium hydroxide bin, a steam treatment device, a hydroiodic acid solution pool, a hydroiodic acid liquid delivery pump, a heat exchanger, an Oslo evaporative crystallizer, a sodium hydroxide solid delivery pump, a reaction tank, a sodium iodide liquid delivery pump, a filter, a clean water pump, a clean water pool and a central controller, wherein the sodium hydroxide bin is connected with the sodium hydroxide solid delivery pump through a stainless steel conduit, the hydroiodic acid solution pool is connected with the hydroiodic acid liquid delivery pump and a clean water output valve through stainless steel conduits, the filter is connected with a clean water input valve, a clean water output valve, a sodium iodide liquid input valve and a sodium iodide liquid output valve through stainless steel conduits, the sodium iodide liquid delivery pump is connected with the sodium iodide liquid input valve through a stainless steel conduit, the sodium iodide liquid output valve is connected with the Oslo evaporative crystallizer through a stainless steel conduit, the retort is cavity cylinder stainless steel structure, and its top installation is fixed with agitator motor, and its inside bottom surface of going up is equipped with relief valve, sodium hydroxide entry, hydroiodic acid entry, and inside side-mounting has pressure monitor, ring heater, and inside bottom surface-mounting has temperature monitor, liquid collecting tray down, the agitator motor below is connected with the stirring rake, the stirring rake is located retort inside to can be rotatory under agitator motor drive, the sodium hydroxide entry passes through the stainless steel pipe and is connected with sodium hydroxide solid delivery pump, ring heater is the loop configuration, is located the pressure monitor below, the liquid collecting tray passes through the stainless steel pipe and is connected with sodium iodide liquid delivery pump.

The heat exchanger is connected with the steam treatment device, the hydriodic acid liquid delivery pump, the steam output port and the hydriodic acid inlet through a stainless steel conduit.

The clean water pump is connected with the clean water tank and the clean water input valve through stainless steel guide pipes.

And the Oslo evaporative crystallizer is provided with a crystal output port and a steam output port, and the steam output port is connected with the heat exchanger through a stainless steel conduit.

The central controller is connected with a hydroiodic acid liquid delivery pump, an Oslo evaporative crystallizer, a sodium hydroxide solid delivery pump, a sodium iodide liquid delivery pump, a clear water pump, a pressure monitor, a temperature monitor, an annular heater, a stirring motor and an electronic pressure relief valve through leads.

The utility model has the advantages that:

1. the utility model discloses sodium iodide preparation facilities, its is rational in infrastructure, and the practicality is strong, and stability is good, and degree of automation is high, and the utilization ratio of raw materials is high, and preparation efficiency is good, and the energy consumption is low, and does not have sewage to produce.

Drawings

Fig. 1 is a schematic structural diagram of the sodium iodide preparation device of the present invention.

Fig. 2 is a schematic view of the front sectional structure of the reaction tank of the sodium iodide preparation device of the present invention.

In the figure: 1 is a sodium hydroxide bin, 2 is a steam treatment device, 3 is a hydriodic acid solution tank, 4 is a hydriodic acid liquid delivery pump, 5 is a heat exchanger, 6 is an Oslo evaporative crystallizer, 7 is a sodium hydroxide solid delivery pump, 8 is a reaction tank, 9 is a sodium iodide liquid delivery pump, 10 is a filter, 11 is a clean water pump, 12 is a clean water tank, 13 is a central controller, 14 is a crystal output port, 15 is a clean water input valve, 16 is a clean water output valve, 17 is a sodium iodide liquid input valve, 18 is a sodium iodide liquid output valve, 19 is a steam output port, 20 is a pressure monitor, 21 is a temperature monitor, 22 is a liquid collecting disc, 23 is an annular heater, 24 is a stirring motor, 25 is a stirring paddle, 26 is an electronic pressure relief valve, 27 is a sodium hydroxide inlet, 28 is a hydriodic acid inlet, and 29 is a stainless steel conduit.

Detailed Description

The present invention will be further described with reference to fig. 1 and 2, but the scope of the present invention is not limited to the contents.

In which like parts are designated by like reference numerals. It is noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component, and the drawings are in greatly simplified form and employ non-precise ratios, merely for the purpose of facilitating and distinctly aiding in the description of the embodiments of the present invention.

In the following description, for purposes of clarity, not all features of an actual implementation are described, well-known functions or constructions are not described in detail since they would obscure the invention with unnecessary detail, it being understood that in the development of any actual embodiment, numerous implementation details must be set forth in order to achieve the developer's specific goals, such as compliance with system-related and business-related constraints, changing from one implementation to another, and it being recognized that such development efforts may be complex and time consuming, but would nevertheless be a routine undertaking for those of ordinary skill in the art.

The sodium iodide preparation device comprises a sodium hydroxide bin 1, a steam treatment device 2, a hydroiodic acid solution tank 3, a hydroiodic acid liquid delivery pump 4, a heat exchanger 5, an Oslo evaporative crystallizer 6, a sodium hydroxide solid delivery pump 7, a reaction tank 8, a sodium iodide liquid delivery pump 9, a filter 10, a clean water pump 11, a clean water tank 12 and a central controller 13, wherein the sodium hydroxide bin 1 is connected with the sodium hydroxide solid delivery pump 7 through a stainless steel conduit 29, the hydroiodic acid solution tank 3 is connected with the hydroiodic acid liquid delivery pump 4 and the clean water output valve 16 through a stainless steel conduit 29, the filter 10 is connected with a clean water input valve 15, a clean water output valve 16, a sodium iodide liquid input valve 17 and a sodium iodide liquid output valve 18 through a stainless steel conduit 29, the sodium iodide liquid output valve 18 is connected with the Oslo evaporative crystallizer 6 through a stainless steel conduit 29, the reaction tank 8 is of a hollow cylindrical stainless steel structure, a stirring motor 24 is fixedly arranged above the reaction tank 8, a pressure release valve 26, a sodium hydroxide inlet 27 and a hydroiodic acid inlet 28 are arranged on the upper bottom surface of the reaction tank, a pressure monitor 20 and a ring heater 23 are arranged on the side surface of the reaction tank, a temperature monitor 21 and a liquid collecting disc 22 are arranged on the lower bottom surface of the reaction tank, a stirring paddle 25 is connected below the stirring motor 24, the stirring paddle 25 is located inside the reaction tank 8 and can rotate under the driving of the stirring motor 24, the sodium hydroxide inlet 27 is connected with a sodium hydroxide solid conveying pump 7 through a stainless steel guide pipe 29, the ring heater 23 is of a ring structure and located below the pressure monitor 20, and the liquid collecting disc 22 is connected with a sodium iodide liquid conveying pump 9 through.

The heat exchanger 5 is connected with the steam treatment device 2, the hydriodic acid liquid delivery pump 4, the steam outlet 19 and the hydriodic acid inlet 28 through a stainless steel conduit 29.

The clean water pump 11 is connected with the clean water tank 12 and the clean water input valve 15 through a stainless steel conduit 29.

The Oslo evaporative crystallizer 6 is provided with a crystal output port 14 and a steam output port 19, and the steam output port 19 is connected with the heat exchanger 5 through a stainless steel conduit 29.

The central controller 13 is connected with a hydroiodic acid liquid delivery pump 4, an Oslo evaporative crystallizer 6, a sodium hydroxide solid delivery pump 7, a sodium iodide liquid delivery pump 9, a clean water pump 11, a pressure monitor 20, a temperature monitor 21, a ring heater 23, a stirring motor 24 and an electronic pressure relief valve 26 through leads 30.

Example 1: a certain amount of supersaturated hydroiodic acid in a hydroiodic acid solution pool is conveyed into a reaction tank 8 through a heat exchanger 5 under the action of a hydroiodic acid liquid conveying pump 4, and the supersaturated hydroiodic acid in the heat exchanger 5 exchanges heat with high-temperature steam discharged from a steam outlet 19 to be heated, meanwhile, a sodium hydroxide solid conveying pump 7 puts sodium hydroxide in a sodium hydroxide bin 1 into the reaction tank 8, in the adding process of the supersaturated hydroiodic acid and the sodium hydroxide, a stirring motor 24 drives a stirring paddle 25 to rotate and stir, so that the supersaturated hydroiodic acid and the sodium hydroxide are fully mixed, meanwhile, a ring heater 23 heats a supersaturated hydroiodic acid mixed solution, after the supersaturated hydroiodic acid and the sodium hydroxide are fully reacted, a sodium iodide solid-liquid mixture after the reaction is collected by a liquid collecting tray and then enters a filter 10 through a sodium iodide liquid conveying pump 9 to be filtered, removing solid crystals, then entering into an Oslo evaporative crystallizer 6 for crystallization, outputting crystallized sodium iodide from a crystal output port 14, and inputting vapor generated by crystallization from a vapor output port 19 into a heat exchanger 5.

Example 2: the temperature monitor 21 monitors the temperature in the reaction tank 8 in real time and transmits data to the central controller 13 for analysis, the pressure monitor 20 monitors the pressure in the reaction tank 8 in real time and transmits data to the central controller 13 for analysis, and if the pressure in the reaction tank 8 is too high, the central controller 13 controls the electronic pressure release valve 26 to release pressure.

Example 3: after a batch of sodium iodide liquid-solid mixture passes through the filter 10, closing a sodium iodide liquid input valve 17 and a sodium iodide liquid output valve 18, opening a clear water input valve 15 and a clear water output valve 16, operating a clear water pump 11, pressing clear water into the filter 10 for backwashing, dissolving part of crystals in the filter 10 in backwashing, flushing part of crystals out of the filter 10 along with backwashing water, and finally injecting the backwashing water into a hydriodic acid solution pool as a solvent.

All electrical equipment of the apparatus operates under the control of the central controller 13.

The filter 10, the Oslo evaporative crystallizer 6, the central controller 13, the internal structure of the heat exchanger 5, the working principle and the working process are well known in the art and will not be described in detail herein.

Although the invention has been shown and described in detail with respect to the preferred embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. Sodium iodide preparation facilities, its characterized in that: the device comprises a sodium hydroxide bin (1), a steam treatment device (2), a hydroiodic acid solution tank (3), a hydroiodic acid liquid delivery pump (4), a heat exchanger (5), an Oslo evaporative crystallizer (6), a sodium hydroxide solid delivery pump (7), a reaction tank (8), a sodium iodide liquid delivery pump (9), a filter (10), a clean water pump (11), a clean water tank (12) and a central controller (13), wherein the sodium hydroxide bin (1) is connected with the sodium hydroxide solid delivery pump (7) through a stainless steel conduit (29), the hydroiodic acid solution tank (3) is connected with the hydroiodic acid liquid delivery pump (4) and a clean water output valve (16) through the stainless steel conduit (29), and the filter (10) is connected with a clean water input valve (15), a clean water output valve (16), a sodium iodide liquid input valve (17) and a sodium iodide liquid output valve (18) through the stainless steel conduit (29), sodium iodide liquid delivery pump (9) are connected with sodium iodide liquid input valve (17) through stainless steel pipe (29), sodium iodide liquid output valve (18) are connected with Oersong evaporation crystallizer (6) through stainless steel pipe (29), retort (8) are cavity cylinder stainless steel construction, and its top installation is fixed with agitator motor (24), and its inside bottom surface of going up is equipped with relief valve (26), sodium hydroxide entry (27), hydroiodic acid entry (28), and inside side-mounting has pressure monitor (20), ring heater (23), and temperature monitor (21), liquid collection dish (22) are installed to inside bottom surface down, agitator motor (24) below is connected with stirring rake (25), stirring rake (25) are located retort (8) inside to can be rotatory under agitator motor (24) drive, sodium hydroxide entry (27) are connected with sodium hydroxide solid delivery pump (7) through stainless steel pipe (29), and sodium hydroxide solid delivery pump (7) The annular heater (23) is of an annular structure and is positioned below the pressure monitor (20), and the liquid collecting disc (22) is connected with a sodium iodide liquid delivery pump (9) through a stainless steel conduit (29).

2. The apparatus for preparing sodium iodide as set forth in claim 1, wherein: the heat exchanger (5) is connected with the steam treatment device (2), the hydriodic acid liquid delivery pump (4), the steam output port (19) and the hydriodic acid inlet (28) through a stainless steel conduit (29).

3. The apparatus for preparing sodium iodide as set forth in claim 1, wherein: the clean water pump (11) is connected with the clean water pool (12) and the clean water input valve (15) through a stainless steel conduit (29).

4. The apparatus for preparing sodium iodide as set forth in claim 1, wherein: the Oslo evaporative crystallizer (6) is provided with a crystal output port (14) and a steam output port (19), and the steam output port (19) is connected with the heat exchanger (5) through a stainless steel conduit (29).

5. The apparatus for preparing sodium iodide as set forth in claim 1, wherein: the central controller (13) is connected with a hydroiodic acid liquid delivery pump (4), an Oslo evaporative crystallizer (6), a sodium hydroxide solid delivery pump (7), a sodium iodide liquid delivery pump (9), a clear water pump (11), a pressure monitor (20), a temperature monitor (21), an annular heater (23), a stirring motor (24) and an electronic pressure relief valve (26) through a lead (30).