阅读说明：本技术 一种亚硫酸钠制备用原料配比添加装置 (Sodium sulfite preparation is with raw materials ratio interpolation device ) 是由 郑红华 于 2020-12-14 设计创作，主要内容包括：本发明公开了一种亚硫酸钠制备用原料配比添加装置,涉及亚硫酸钠生产技术领域。包括过滤罐、储罐、反应釜、溶液罐及PLC控制柜,所述过滤罐上通过法兰连接有第一输送管道,且通过第一输送管道与储罐相连接,所述第一输送管道上安装有第一电磁流量阀,所述储罐上安装有第二输送管道,且通过第二输送管道与反应釜相连接。该亚硫酸钠制备用原料配比添加装置,通过将所需配比的溶液体积和SO2气体的体积输入PLC控制柜,由PLC控制柜控制进液和进气的电磁阀开始工作,将溶液和SO2气体输入到反应釜中,并打开第一搅拌器进行混合搅拌,使得溶液的配比完全、均匀,通过预先设定好配比量来实现亚硫酸钠的亚硫酸钠,利于提高生产效率和品质。(The invention discloses a raw material proportioning adding device for sodium sulfite preparation, and relates to the technical field of sodium sulfite production. Including filtering jar, storage tank, reation kettle, solution tank and PLC switch board, filter and have first pipeline through flange joint on the jar, and be connected with the storage tank through first pipeline, install first electromagnetic flow valve on the first pipeline, install second pipeline on the storage tank, and be connected with reation kettle through second pipeline. This sodium sulfite preparation is with raw materials ratio interpolation device, through the volume input PLC switch board with the solution volume of required ratio and the gaseous volume of SO2, the solenoid valve that is controlled the feed liquor by PLC switch board and admits air begins work, with solution and SO2 gaseous input to reation kettle in, and open first agitator and mix the stirring, make the ratio of solution complete, even, realize the sodium sulfite of sodium sulfite through the ratio volume of having set for in advance, do benefit to improvement production efficiency and quality.)

1. The utility model provides a sodium sulfite preparation is with raw materials ratio interpolation device, includes filter tank (1), storage tank (2), reation kettle (3), solution tank (4) and PLC switch board (5), its characterized in that: the filter tank (1) is connected with a first conveying pipeline (6) through a flange and is connected with the storage tank (2) through the first conveying pipeline (6), a first electromagnetic flow valve (7) is arranged on the first conveying pipeline (6), a second conveying pipeline (8) is arranged on the storage tank (2), and is connected with the reaction kettle (3) through a second conveying pipeline (8), a second electromagnetic flow valve (9) is installed on the second conveying pipeline (8), a third conveying pipeline (10) is installed on the solution tank (4), and is connected with the reaction kettle (3) through a third conveying pipeline (10), a third electromagnetic flow valve (11) is arranged on the third conveying pipeline (10), the first electromagnetic flow valve (7), the second electromagnetic flow valve (9) and the third electromagnetic flow valve (11) are electrically connected with the PLC control cabinet (5) through leads;

the filter tank (1) comprises an outer shell (12), a sealing plate (13), a cyclone groove (14) and a filter bed (15), wherein the sealing plate (13) is arranged at the upper end inside the outer shell (12), the cyclone groove (14) is arranged on the sealing plate (13), and the filter bed (15) is arranged at the lower end inside the outer shell (12);

the storage tank (2) comprises a first tank body (16) and a heat exchanger (17), and an evaporation section of the heat exchanger (17) is positioned in the first tank body (16).

2. The sodium sulfite preparation raw material proportioning and adding device of claim 1, which is characterized in that: the outside of shell body (12) is equipped with first connection import (18), and the top of shell body (12) is equipped with first connection export (19), mount (20) are installed to the bottom of shell body (12), the bottom of shell body (12) is equipped with dust exhaust mouth (21), and is located the below of dust exhaust mouth (21) and has placed receipts material frame (22).

3. The sodium sulfite preparation raw material proportioning and adding device of claim 1, which is characterized in that: the top end of the cyclone groove (14) is exposed out of the top of the closing plate (13), and the filter bed (15) is but not limited to a bed layer which is made of layered anthracite, sand and fine garnet.

4. The sodium sulfite preparation raw material proportioning and adding device of claim 1, which is characterized in that: the top of the first tank body (16) is provided with a second connecting inlet (23), the bottom of the first tank body (16) is provided with a second connecting outlet (24), and the bottom of the first tank body (16) is provided with a support (25).

5. The sodium sulfite preparation raw material proportioning and adding device of claim 1, which is characterized in that: the reaction kettle (3) comprises a kettle body (26), a first water jacket (27) and a first stirrer (28), wherein the first water jacket (27) is installed on the outer side of the kettle body (26), and the first stirrer (28) is installed in the kettle body (26).

6. The sodium sulfite preparation raw material proportioning and adding device of claim 5, which is characterized in that: the top of the kettle body (26) is sequentially provided with a first feeding port (29) and a second feeding port (30), and the bottom of the kettle body (26) is provided with a discharging port (31).

7. The sodium sulfite preparation raw material proportioning and adding device of claim 1, which is characterized in that: the solution tank (4) comprises a second tank body (32), a second water jacket (33) and a second stirrer (34), wherein the second water jacket (33) is installed on the outer side of the second tank body (32), and the second stirrer (34) is installed in the second tank body (32).

8. The sodium sulfite preparation raw material proportioning and adding device of claim 7, which is characterized in that: the top of the second tank body (32) is sequentially provided with a third connecting inlet (35) and a feeding port (36), and the bottom of the second tank body (32) is provided with a discharge port (37).

Technical Field

The invention relates to the technical field of sodium sulfite production, in particular to a raw material proportioning and adding device for sodium sulfite preparation.

Background

Sodium sulfite is an inorganic substance, is a common sulfite, is white and monoclinic crystal or powder, has stimulation effect on eyes, skin and mucous membrane, can pollute water source, is decomposed by high heat to generate poisonous sulfide smoke, is mainly used for preparing cellulose sulfite, sodium thiosulfate, organic chemicals, bleaching fabrics and the like in industry, is also used as a reducing agent, a preservative, a dechlorinating agent and the like, sodium sulfite is easy to be weathered and oxidized into sodium sulfate in the air, losing water of crystallization at 150 ℃, melting into a mixture of sodium sulfide and sodium sulfate upon heating, the density of anhydrate 2.633, being much slower to oxidize than hydrate, the sodium sulfide and the sodium sulfate are generated by thermal decomposition without change in dry air, and are decomposed into corresponding salts by contact with strong acid to release sulfur dioxide, and the sodium sulfite has strong reducibility and can reduce copper ions into cuprous ions and also can reduce weak oxidants such as phosphotungstic acid and the like.

Sodium sulfite is an important reducing agent, the industrial wet process is generally used for producing sodium sulfite, SO2 and a preparation solution are in countercurrent contact in a reaction kettle to generate sodium bisulfite, sodium bisulfite is supersaturated to separate out sodium sulfite crystals, and a finished product is prepared by centrifugal drying.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides a raw material proportioning and adding device for preparing sodium sulfite, which aims to solve the problems in the background art.

In order to achieve the purpose, the invention provides the following technical scheme: a device is added to raw material proportion for preparing sodium sulfite, comprising a filter tank, a storage tank, a reaction kettle, a solution tank and a PLC control cabinet, wherein the filter tank is connected with a first conveying pipeline through a flange and is connected with the storage tank through the first conveying pipeline, the first conveying pipeline is provided with a first electromagnetic flow valve, the storage tank is provided with a second conveying pipeline and is connected with the reaction kettle through the second conveying pipeline, the second conveying pipeline is provided with a second electromagnetic flow valve, the solution tank is provided with a third conveying pipeline and is connected with the reaction kettle through the third conveying pipeline, the third conveying pipeline is provided with a third electromagnetic flow valve, and the first electromagnetic flow valve, the second electromagnetic flow valve and the third electromagnetic flow valve are all electrically connected with the PLC control cabinet through leads;

the filter tank comprises an outer shell, a sealing plate, a cyclone groove and a filter bed, wherein the sealing plate is arranged at the upper end inside the outer shell, the cyclone groove is arranged on the sealing plate, and the filter bed is arranged at the lower end inside the outer shell;

the storage tank comprises a first tank body and a heat exchanger, and an evaporation section of the heat exchanger is positioned in the first tank body.

As a preferable technical scheme of the invention, a first connecting inlet is arranged on the outer side of the outer shell, and a first connecting outlet is arranged on the top of the outer shell.

As a preferable technical scheme of the invention, a first connecting inlet is arranged on the outer side of the outer shell, a first connecting outlet is arranged on the top of the outer shell, a fixed frame is arranged at the bottom of the outer shell, a dust exhaust port is arranged at the bottom of the outer shell, and a material receiving frame is arranged below the dust exhaust port.

In a preferred embodiment of the present invention, the top end of the cyclone groove is exposed to the top of the sealing plate, and the filter bed is, but not limited to, a bed layer of layered anthracite, sand, or finely-divided garnet.

As a preferable technical scheme of the invention, the top of the first tank body is provided with a second connecting inlet, the bottom of the first tank body is provided with a second connecting outlet, and the bottom of the first tank body is provided with a support.

As a preferable technical scheme of the invention, the reaction kettle comprises a kettle body, a first water jacket and a first stirrer, wherein the first water jacket is arranged on the outer side of the kettle body, and the first stirrer is arranged in the kettle body.

As a preferred technical scheme of the invention, the top of the kettle body is sequentially provided with a first feeding port and a second feeding port, and the bottom of the kettle body is provided with a discharging port.

As a preferable technical solution of the present invention, the solution tank includes a second tank, a second water jacket and a second stirrer, the second water jacket is installed at an outer side of the second tank, and the second stirrer is installed in the second tank.

As a preferable technical scheme of the invention, the top of the second tank body is sequentially provided with a third connecting inlet and a feeding port, and the bottom of the second tank body is provided with a discharge port.

Compared with the prior art, the invention provides a raw material proportioning and adding device for sodium sulfite preparation, which has the following beneficial effects:

1. the raw material proportioning and adding device for preparing the sodium sulfite comprises a filter tank, wherein the filter tank takes layered anthracite, sand, finely-divided garnet or other materials as a bed layer, the top layer of the bed consists of the lightest and coarsest grade materials, the heaviest and finest grade materials are placed at the bottom of the bed, and SO2 gas is introduced to filter out larger particles in the bed layer and remove smaller particles in the bed layer, SO that the SO2 gas reaches the standard after coarse filtration and the impurity content is reduced.

2. The raw material proportioning adding device for preparing the sodium sulfite is characterized in that a heat exchanger is additionally arranged in a storage tank, cooling liquid flowing in the heat exchanger is subjected to heat conduction on the wall surface and convection of SO2 gas on the wall surface, SO that the heat transfer efficiency is improved, heat exchange is carried out between the cooling liquid and the SO2 gas, the SO2 gas can be rapidly cooled, and the SO2 gas entering a reaction kettle can reach the standard in temperature.

3. This sodium sulfite preparation is with raw materials ratio interpolation device, through the volume input PLC switch board with the solution volume of required ratio and the gaseous volume of SO2, the solenoid valve that is controlled the feed liquor by PLC switch board and admits air begins work, with solution and SO2 gaseous input to reation kettle in, and open first agitator and mix the stirring, make the ratio of solution complete, even, realize the sodium sulfite of sodium sulfite through the ratio volume of having set for in advance, do benefit to improvement production efficiency and quality.

Drawings

FIG. 1 is a schematic structural diagram of a raw material proportioning and adding device for preparing sodium sulfite provided by the invention;

FIG. 2 is a cross-sectional view of a filtration tank of a raw material proportioning and adding device for sodium sulfite preparation according to the present invention;

FIG. 3 is a sectional view of the storage tank of the raw material proportioning and adding device for sodium sulfite preparation according to the present invention;

FIG. 4 is a sectional view of a reaction kettle of a raw material proportioning and adding device for preparing sodium sulfite, which is provided by the invention;

fig. 5 is a sectional view of a solution tank of a raw material proportioning and adding device for sodium sulfite preparation according to the present invention.

In the figure: 1. a filter tank; 2. a storage tank; 3. a reaction kettle; 4. a solution tank; 5. a PLC control cabinet; 6. a first delivery conduit; 7. a first electromagnetic flow valve; 8. a second delivery conduit; 9. a second electromagnetic flow valve; 10. a third delivery conduit; 11. a third electromagnetic flow valve; 12. an outer housing; 13. closing the plate; 14. a cyclone groove; 15. a filter bed; 16. a first tank; 17. a heat exchanger; 18. a first connection inlet; 19. a first connection outlet; 20. a fixed mount; 21. a dust exhaust port; 22. a material receiving frame; 23. a second connection inlet; 24. a second connection outlet; 25. a support; 26. a kettle body; 27. a first water jacket; 28. a first stirrer; 29. a first feed inlet; 30. a second feed inlet; 31. a discharge port; 32. a second tank; 33. a second water jacket; 34. a second agitator; 35. a third connection inlet; 36. a throwing port; 37. and a discharge port.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a raw material proportioning adding device for preparing sodium sulfite comprises a filter tank 1, a storage tank 2, a reaction kettle 3, a solution tank 4 and a PLC control cabinet 5, wherein the filter tank 1 is connected with a first conveying pipeline 6 through a flange and is connected with the storage tank 2 through the first conveying pipeline 6, the first conveying pipeline 6 is provided with a first electromagnetic flow valve 7, the storage tank 2 is provided with a second conveying pipeline 8 and is connected with the reaction kettle 3 through the second conveying pipeline 8, the second conveying pipeline 8 is provided with a second electromagnetic flow valve 9, the solution tank 4 is provided with a third conveying pipeline 10 and is connected with the reaction kettle 3 through a third conveying pipeline 10, the third conveying pipeline 10 is provided with a third electromagnetic flow valve 11, and the first electromagnetic flow valve 7, the second electromagnetic flow valve 9 and the third electromagnetic flow valve 11 are all electrically connected with the PLC control cabinet 5 through wires, through the volume input PLC switch board 5 with the gaseous volume of the solution volume of required ratio and SO2, the solenoid valve that is controlled the feed liquor by PLC switch board 5 and admits air begins work, with solution and SO2 gaseous input to reation kettle 3 in to open first agitator 28 and mix the stirring, make the ratio of solution complete, even, realize the sodium sulfite of sodium sulfite through the ratio volume of having set for in advance, do benefit to improvement production efficiency and quality.

The filter tank 1 comprises an outer shell 12, a sealing plate 13, a cyclone groove 14 and a filter bed 15, wherein the sealing plate 13 is arranged at the upper end inside the outer shell 12, the cyclone groove 14 is arranged on the sealing plate 13, the filter bed 15 is arranged at the lower end inside the outer shell 12, the filter tank 1 takes layered anthracite, sand, finely-divided garnet or other materials as a bed layer, the top layer of the bed consists of lightest and coarsest materials, the heaviest and finest materials are placed at the bottom of the bed, and after SO2 gas is introduced, larger particles can be removed at the top layer and smaller particles are removed at the deeper part of a filter medium, SO that the SO2 gas reaches the standard after coarse filtration, and the impurity content is reduced.

The storage tank 2 comprises a first tank 16 and a heat exchanger 17, an evaporation section of the heat exchanger 17 is positioned in the first tank 16, the heat exchanger 17 is additionally arranged in the storage tank 2, cooling liquid flowing in the heat exchanger is subjected to heat conduction through a wall surface and convection of SO2 gas on the wall surface, the heat transfer efficiency is improved, heat exchange is performed between the cooling liquid and SO2 gas, the SO2 gas can be rapidly cooled, and the SO2 gas entering the reaction kettle 3 can reach the standard in temperature.

As a specific technical scheme of this embodiment, the outside of shell body 12 is equipped with first connection import 18, and the top of shell body 12 is equipped with first connection export 19, mount 20 is installed to the bottom of shell body 12, the bottom of shell body 12 is equipped with dust exhaust port 21, and is located the below of dust exhaust port 21 and has placed material receiving frame 22.

In this embodiment, the filter tank 1 is connected to the introduced SO2 gas pipeline through the first connection inlet 18, and is input into the first conveying pipeline 6 through the first connection outlet 19, the fixing frame 20 mainly plays a role of supporting and fixing, and the filtered impurities are discharged into the material receiving frame 22 through the dust discharge port 21 to be collected.

As a specific solution of this embodiment, the top end of the cyclone duct 14 is exposed at the top of the sealing plate 13, and the filter bed 15 is, but not limited to, a bed layer of layered anthracite, sand, and fine garnet.

In this embodiment, the top layer of the bed consists of the lightest and coarsest grades of material, while the heaviest and finest grades of material are placed at the bottom of the bed, and SO2 gas is introduced to filter out larger particles that are removed at the top layer and smaller particles that are removed deeper in the filter media.

As a specific technical solution of this embodiment, a second connection inlet 23 is disposed at the top of the first tank 16, a second connection outlet 24 is disposed at the bottom of the first tank 16, and a support 25 is mounted at the bottom of the first tank 16.

In this embodiment, the storage tank 2 is connected with the first conveying pipeline 6 through the second connecting inlet 23, SO that the SO2 gas after impurity removal is introduced into the storage tank 2, and after the SO2 gas is rapidly cooled, the gas is input into the second conveying pipeline 8 through the second connecting outlet 24, and the support 25 mainly plays a role in supporting and fixing.

As a specific technical solution of this embodiment, the reaction kettle 3 includes a kettle body 26, a first water jacket 27 and a first stirrer 28, the first water jacket 27 is installed outside the kettle body 26, and the first stirrer 28 is installed in the kettle body 26.

In this embodiment, after the solution and the SO2 gas are input into the reaction kettle 3, the first stirrer 28 is turned on to mix and stir, and a cold source or a heat source is injected into the first water jacket 27 to preheat or cool the reaction kettle according to production needs.

As a specific technical solution of this embodiment, the top of the kettle 26 is sequentially provided with a first feeding port 29 and a second feeding port 30, and the bottom of the kettle 26 is provided with a discharging port 31.

In this embodiment, reaction kettle 3 is connected to second pipeline 8 through first charge door 29, is connected to third pipeline 10 through second charge door 30, and after mixing evenly, solution is discharged through discharge gate 31, carries out next operation process.

As a specific technical solution of this embodiment, the solution tank 4 includes a second tank 32, a second water jacket 33 and a second stirrer 34, the second water jacket 33 is installed outside the second tank 32, and the second stirrer 34 is installed inside the second tank 32.

In this embodiment, the solution is stored in the solution tank 4, and the solution is mixed by the second stirrer 34 as necessary, thereby preventing the lower layer fluid from settling.

As a specific technical solution of this embodiment, a third connecting inlet 35 and a feeding port 36 are sequentially disposed at the top of the second tank 32, and a discharge port 37 is disposed at the bottom of the second tank 32.

In this embodiment, the solution tank 4 is connected to the third pipeline 10 through a third connecting inlet 35, and the feeding port 36 is used for feeding the solution, and after use, if any, the solution can be discharged through the discharge port 37.

The working principle and the using process of the invention are as follows: in use, the filter tank 1 is connected with an introduced SO2 gas pipeline through a first connecting inlet 18 and is input into a first conveying pipeline 6 through a first connecting outlet 19, the filter tank 1 is a bed layer of layered anthracite, sand, finely-divided garnet or other materials, the top layer of the bed is composed of the lightest and coarsest grade materials, the heaviest and finest grade materials are placed at the bottom of the bed, after the SO2 gas is introduced, larger particles can be filtered and removed at the top layer, smaller particles are removed at the deeper part of a filter medium, SO that the SO2 gas reaches the standard after coarse filtration and the impurity content is reduced, the storage tank 2 is connected with the first conveying pipeline 6 through a second connecting inlet 23, the SO2 gas after impurity removal is introduced into the storage tank 2, a heat exchanger 17 is additionally arranged in the storage tank 2, cooling liquid flowing in the heat exchanger is conducted through the wall surface and the convection of the SO2 gas at the wall surface, the heat transfer efficiency is improved, heat exchange is carried out between cooling liquid and SO2 gas, SO2 gas can be rapidly cooled, SO2 gas entering a reaction kettle 3 reaches the standard in temperature, a solution tank 4 is connected with a third conveying pipeline 10 through a third connecting inlet 35, the solution volume and the volume of SO2 gas which need to be proportioned are input into a PLC control cabinet 5, an electromagnetic valve for controlling liquid inlet and gas inlet of the PLC control cabinet 5 starts to work, the solution and the SO2 gas are input into the reaction kettle 3, a first stirrer 28 is opened for mixing and stirring, the proportioning of the solution is complete and uniform, and after uniform mixing, the solution is discharged through a discharge port 31 to carry out the next operation procedure.

In conclusion, the raw material proportioning and adding device for preparing the sodium sulfite comprises a filter tank 1, wherein the filter tank is made of layered anthracite, sand, finely-divided garnet or other materials serving as a bed layer, the top layer of the bed is made of the lightest and coarsest grade materials, the heaviest and finest grade materials are placed at the bottom of the bed, and SO2 gas is introduced to filter out larger particles in the bed layer and remove smaller particles in the bed layer, SO that the SO2 gas reaches the standard after coarse filtration and the impurity content is reduced; the heat exchanger 17 is additionally arranged in the storage tank 2, cooling liquid flowing in the heat exchanger is subjected to heat conduction through the wall surface and convection of SO2 gas on the wall surface, SO that the heat transfer efficiency is improved, heat exchange is performed between the cooling liquid and the SO2 gas, the SO2 gas can be rapidly cooled, and the SO2 gas entering the reaction kettle 3 reaches the standard in temperature; through the volume input PLC switch board 5 with the gaseous volume of the solution volume of required ratio and SO2, the solenoid valve that is controlled the feed liquor by PLC switch board 5 and admits air begins work, with solution and SO2 gaseous input to reation kettle 3 in to open first agitator 28 and mix the stirring, make the ratio of solution complete, even, realize the sodium sulfite of sodium sulfite through the ratio volume of having set for in advance, do benefit to improvement production efficiency and quality.

It should be noted that, in this document, terms such as "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.