Nanoscale iron phosphate hydrolysis reaction device

Abstract

The utility model belongs to the technical field of phosphoric acid iron hydrolysis reaction, and particularly relates to a nanoscale phosphoric acid iron hydrolysis reaction device which comprises a tank body, a top cover is arranged at the top end of the tank body, a stirring shaft is installed on the top cover, and a motor is arranged in transmission connection with the stirring shaft. A spiral guide vane, a scraper, a filter screen cover and a stirring assembly are sequentially arranged on the stirring shaft from top to bottom, the filter screen cover is rotationally installed on the stirring shaft through a bearing, a limiting installation structure is arranged between the filter screen cover and the tank body, the tank body comprises a heat conduction inner shell, and a heating coil is arranged on the outer side of the heat conduction inner shell; the top end of the heating coil pipe is reversely and spirally wound on the outer side of the heating coil pipe to form a heat preservation coil pipe, a heat preservation noise reduction layer is arranged on the outer side of the heat preservation coil pipe, and a protective shell is arranged on the outer side of the heat preservation noise reduction layer. Meanwhile, feeding and filtering of raw materials can be realized, and the hydrolysis reaction effect is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of ferric phosphate hydrolysis reaction, and in particular relates to a nano-scale ferric phosphate hydrolysis reaction device. Background Art

[0002] The hydrolysis reaction of nano-sized iron phosphate is usually carried out in an aqueous solution. After hydrolysis, iron hydroxide nanoparticles can be generated. These particles have good biocompatibility and can be used in the preparation of drug carriers, MRI contrast agents, biosensors, etc. in the biomedical field.

[0003] The hydrolysis reaction of nano-iron phosphate is usually carried out in a hydrolysis tank, which needs to be heated, stirred and other operations. The heating method used during heating is mainly to set a heating coil inside the tank to heat the mixture of nano-iron phosphate and water in the tank to promote its hydrolysis reaction. However, when the heating medium in the heating coil is discharged after a round of heat exchange, it has a high residual temperature. Direct discharge easily leads to heat waste in the residual temperature, reduces the heat exchange efficiency of the heating medium, and the heat in the heating tube is easy to dissipate.

[0004] In addition, in the prior art, when feeding the hydrolysis tank, most of the materials are directly poured into the tank body of the hydrolysis tank through a pipeline. During the storage process, nano-iron phosphate will produce agglomerated particles. If the materials are directly poured into the hydrolysis tank, it is not convenient to intercept and screen the agglomerated particles, which affects the hydrolysis reaction effect and efficiency of the nano-iron phosphate.

[0005] And directly pouring it into the hydrolysis tank makes it easy for the nano-iron phosphate raw material to accumulate somewhere inside the tank, and the contact between it and the water is poor, which leads to a long time required for subsequent uniform stirring, affecting the reaction efficiency.

[0006] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0007] The purpose of the utility model is to provide a nano-scale ferric phosphate hydrolysis reaction device to solve the problems of low heat utilization rate of the heating medium and large heat loss during the heating process of the nano-scale ferric phosphate hydrolysis reaction device in the background technology, and the inability to intercept and screen the agglomerated particles in the nano-ferric phosphate and the poor feed uniformity.

[0008] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0009] A nanoscale ferric phosphate hydrolysis reaction device, comprising:

[0010] A tank body, wherein a top cover is arranged at the top of the tank body, a stirring shaft is rotatably mounted on the top cover through a bearing, and a motor is arranged for transmission connection with the stirring shaft, and a spiral guide blade, a scraper, a filter screen cover and a stirring assembly are arranged on the stirring shaft in order from top to bottom, the filter screen cover is rotatably mounted on the stirring shaft through a bearing, and a limited position mounting structure is arranged between the top cover and the tank body;

[0011] The tank body includes a heat-conducting inner shell, a heating coil is arranged on the outside of the heat-conducting inner shell, the top end of the heating coil is reversely spirally wound on the outside of the heating coil to form a heat-insulating coil, a heat-insulating noise reduction layer is arranged on the outside of the heat-insulating coil, and a protective outer shell is arranged on the outside of the heat-insulating noise reduction layer.

[0012] Preferably, a liquid discharge pipe is provided at the bottom end of the tank body, and a slag discharge pipe is provided on the side wall of the tank body in cooperation with the filter screen cover. Valves are provided on the slag discharge pipe and the liquid discharge pipe to facilitate the discharge of the reaction-completed mixed liquid and the intercepted impurities.

[0013] Preferably, a plurality of blanking openings are evenly arranged on the spiral guide blades, and the arrangement of the blanking openings can improve blanking uniformity.

[0014] Preferably, a feed pipe is provided on the top cover, and a feed control valve is provided on the feed pipe to realize the feeding of nano-iron phosphate into the tank body.

[0015] Preferably, the stirring assembly comprises a first spiral stirring blade arranged on the stirring shaft, and a second spiral stirring blade is arranged on the outer side of the first spiral stirring blade in the opposite direction to achieve mixing and stirring between the nano-iron phosphate and water inside the tank body.

[0016] Preferably, a stirring column is provided on the stirring shaft, the first spiral stirring blade and the second spiral stirring blade are partially fixed on the stirring column, and a turbulent stirring blade is provided at the tail end of the stirring column to enhance the stirring effect.

[0017] Preferably, the thermal insulation and noise reduction layer includes a fireproof thermal insulation cotton layer arranged in contact with the thermal insulation coil, a sound-absorbing cotton layer is arranged on the outside of the fireproof thermal insulation cotton layer, and a sound-absorbing panel is arranged on the outside of the sound-absorbing cotton layer to improve the thermal insulation and noise reduction effect of the tank body.

[0018] Preferably, a mounting frame is provided on the inner wall of the tank body, a limiting groove is provided on the mounting frame, a limiting block is provided on the filter screen cover, and the limiting block and the limiting groove are engaged with each other to achieve a detachable connection between the filter screen cover and the tank body.

[0019] Compared with the prior art, the utility model has the following beneficial effects:

[0020] (1) The utility model includes a tank body, a top cover is provided at the top of the tank body, a stirring shaft is rotatably mounted on the top cover through a bearing, a motor is provided for transmission connection with the stirring shaft, spiral guide blades, scrapers, filter screens and stirring components are provided on the stirring shaft from top to bottom, the filter screens are rotatably mounted on the stirring shaft through a bearing, and a limited position mounting structure is provided between the tank body. When nano-iron phosphate is transported to the inside of the tank body, the nano-iron phosphate will first fall on the spiral guide blades, and when the stirring shaft rotates, the spiral guide blades will be driven to rotate, so that the nano-iron phosphate can be evenly landed on the filter screens, and evenly dropped into the tank body through the filter screens, so that the uniformity of the nano-iron phosphate during feeding can be improved, thereby improving the uniformity of contact between the nano-iron phosphate and the water liquid during hydrolysis, and improving the reaction efficiency.

[0021] (2) In the utility model, when the stirring shaft rotates, it will synchronously drive the scraper to rotate on the surface of the filter screen cover, thereby scraping the nano-iron phosphate on the upper surface of the filter screen cover, thereby further improving the uniformity and smoothness of the nano-iron phosphate when it is discharged at the filter screen cover position. Here, the filter screen cover is in the shape of a bamboo hat, which can further improve the discharge effect and at the same time, facilitate the intercepted agglomerated particles to flow downward and be discharged.

[0022] (3) The tank body of the utility model includes a heat-conducting inner shell, and a heating coil is arranged on the outer side of the heat-conducting inner shell. The top end of the heating coil is spirally wound on the outer side of the heating coil in a reverse direction to form a heat-insulating coil. In this way, the heating medium in the heating coil will flow in the heat-insulating coil when it flows out, so that the residual heat in the heating medium will form a heat-insulating layer on the outer side of the heating coil, thereby reducing the heat loss of the heating medium in the heating coil, improving the heat exchange efficiency inside the tank body, and thus improving the reaction efficiency of the nano-iron phosphate during hydrolysis.

[0023] (4) The utility model is provided with a thermal insulation and noise reduction layer on the outer side of the thermal insulation coil, and a protective shell is provided on the outer side of the thermal insulation and noise reduction layer, wherein the thermal insulation and noise reduction layer includes a fireproof thermal insulation cotton layer arranged in contact with the thermal insulation coil, a sound-absorbing cotton layer is provided on the outer side of the fireproof thermal insulation cotton layer, and a sound-absorbing board is provided on the outer side of the sound-absorbing cotton layer. In this way, the thermal insulation effect of the heating coil during heating can be further enhanced by the provision of the fireproof thermal insulation cotton layer, and the heat exchange efficiency can be improved. At the same time, the cooperation of the sound-absorbing cotton layer and the sound-absorbing board layer can improve the overall sound absorption and noise reduction effect during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 for Figure 1 Internal section of Figure 1 ;

[0026] Figure 3 for Figure 1 Internal section of Figure 2 ;

[0027] Figure 4 It is a schematic diagram of the connection structure between the scraper, the filter screen and the stirring assembly of the utility model;

[0028] Figure 5 This is a cross-sectional view of the local connection structure of the thermal insulation and noise reduction layer of the utility model.

[0029] Description of main reference numerals:

[0030] 1. Tank body; 2. Top cover; 3. Stirring shaft; 4. Motor; 5. Spiral guide blade; 6. Scraper; 7. Filter cover; 8. Stirring assembly; 9. Heat-conducting inner shell; 10. Heating coil; 11. Insulation coil; 12. Insulation and noise reduction layer; 13. Protective outer shell; 14. Drain pipe; 15. Slag discharge pipe; 16. Valve; 17. Dropping port; 18. Feed pipe; 19. Feed control valve; 20. First spiral stirring blade; 21. Second spiral stirring blade; 22. Stirring column; 23. Turbine stirring blade; 24. Fireproof and heat-insulating cotton layer; 25. Sound-absorbing cotton layer; 26. Sound-absorbing board layer; 27. Mounting frame; 28. Limiting groove; 29. ​​Limiting block. DETAILED DESCRIPTION

[0031] The following is a clear and complete description of the technical solution of the utility model patent. Obviously, the described embodiments are part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by technicians in this field without creative work are within the scope of protection of the utility model.

[0032] Example

[0033] See attached Figure 1-5A nano-scale iron phosphate hydrolysis reaction device comprises a tank body 1, a top cover 2 is arranged on the top of the tank body 1, a stirring shaft 3 is rotatably mounted on the top cover 2 through a bearing, and a motor 4 is arranged for transmission connection with the stirring shaft 3, a spiral guide blade 5, a scraper 6, a filter screen cover 7 and a stirring assembly 8 are arranged on the stirring shaft 3 from top to bottom, the filter screen cover 7 is rotatably mounted on the stirring shaft 3 through a bearing, and a limited position mounting structure is arranged between the tank body 1; in this way, when the nano-scale iron phosphate is transported to the inside of the tank body 1, the nano-scale iron phosphate will first fall on the spiral guide blade 5, and when the stirring shaft 3 rotates, the spiral guide blade 5 will be driven to rotate, so that the nano-scale iron phosphate can be uniformly distributed. It evenly lands on the filter screen cover 7 and evenly descends to the inside of the tank body 1 through the filter screen cover 7. In this way, the uniformity of the nano-iron phosphate during feeding can be improved, thereby improving the uniformity of the contact between the nano-iron phosphate and the water during hydrolysis, and improving the reaction efficiency. At the same time, when the stirring shaft 3 rotates, it will synchronously drive the scraper 6 to rotate on the surface of the filter screen cover 7, thereby scraping the nano-iron phosphate on the upper surface of the filter screen cover 7, thereby further improving the uniformity and smoothness of the nano-iron phosphate when feeding at the filter screen cover 7. Here, the filter screen cover 7 is in the shape of a bamboo hat, which can further improve the feeding effect and, at the same time, facilitate the downward flow of the intercepted agglomerated particles.

[0034] In this embodiment, the tank body 1 includes a heat-conducting inner shell 9, and a heating coil 10 is arranged on the outside of the heat-conducting inner shell 9. The top end of the heating coil 10 is spirally wound on the outside of the heating coil 10 in the opposite direction, and an insulation coil 11 is formed. In this way, the heating medium in the heating coil 10 will flow in the insulation coil 11 when flowing out, so that the residual heat in the heating medium will form an insulation layer on the outside of the heating coil 10, reducing the heat loss of the heating medium in the heating coil 10, improving the heat exchange efficiency inside the tank body 1, and thus improving the reaction efficiency of nano-iron phosphate during hydrolysis.

[0035] Secondly, in this embodiment, a thermal insulation and noise reduction layer 12 is arranged on the outside of the thermal insulation coil 11, and a protective shell 13 is arranged on the outside of the thermal insulation and noise reduction layer 12, wherein the thermal insulation and noise reduction layer 12 includes a fireproof thermal insulation cotton layer 24 arranged in contact with the thermal insulation coil 11, a sound-absorbing cotton layer 25 is arranged on the outside of the fireproof thermal insulation cotton layer 24, and a sound-absorbing board layer 26 is arranged on the outside of the sound-absorbing cotton layer 25. In this way, the thermal insulation effect of the heating coil 10 during heating can be further enhanced by the setting of the fireproof thermal insulation cotton layer 24, and the heat exchange efficiency can be improved. At the same time, the cooperation of the sound-absorbing cotton layer 25 and the sound-absorbing board layer 26 can improve the overall sound absorption and noise reduction effect during use.

[0036] In addition, in this embodiment, a drain pipe 14 is provided at the bottom end of the tank body 1, a slag discharge pipe 15 is provided on the side wall of the tank body 1 in cooperation with the filter screen cover 7, and valves 16 are provided on the slag discharge pipe 15 and the drain pipe 14. The drain pipe 14 facilitates the discharge of the reaction-completed solution to the tank body 1, and the slag discharge pipe 15 facilitates the discharge of impurities intercepted on the filter screen cover 7 to the tank body 1, wherein the valve 16 controls the opening and closing of the drain pipe 14 and the slag discharge pipe 15.

[0037] In this embodiment, a plurality of drop openings 17 are evenly provided on the spiral guide blade 5; the setting of the drop openings 17 can further improve the drop uniformity of the nano-ferric phosphate on the spiral guide blade 5, so that the nano-ferric phosphate powder can be more evenly dropped on the filter screen 7. A feed pipe 18 is provided on the top cover 2, and a feed control valve 19 is provided on the feed pipe 18. The setting of the feed pipe 18 and the feed control valve 19 facilitates the uniform feeding of the top cover 2 in the tank body 1.

[0038] Secondly, in this embodiment, the stirring assembly 8 includes a first spiral stirring blade 20 arranged on the stirring shaft 3, and a second spiral stirring blade 21 is arranged on the outer side of the first spiral stirring blade 20 in the opposite direction; when the stirring shaft 3 rotates, the first spiral stirring blade 20 and the second spiral stirring blade 21 are driven to rotate. Through the reverse matching of the first spiral stirring blade 20 and the second spiral stirring blade 21, sufficient mixing and stirring between the nano-iron phosphate and water inside the tank body 1 can be achieved, thereby improving the hydrolysis reaction efficiency of the nano-iron phosphate. In addition, a stirring column 22 is arranged on the stirring shaft 3, and the first spiral stirring blade 20 and the second spiral stirring blade 21 are partially fixed on the stirring column 22, and a turbulent stirring blade 23 is arranged at the tail end of the stirring column 22. The arrangement of the stirring column 22 can improve the installation stability of the first spiral stirring blade 20 and the second spiral stirring blade 21 on the stirring shaft 3. At the same time, when the stirring shaft 3 rotates, the stirring column 22 will drive the stirring column 22 to rotate synchronously, and the turbulent stirring blade 23 can be driven to rotate through the stirring column 22, so that the mixed solution in the tank body 1 can be further stirred, thereby improving the contact uniformity and sufficiency between the nano-iron phosphate and the aqueous solution, and improving the reaction efficiency.

[0039] In addition, in the present embodiment, a mounting frame 27 is provided on the inner wall of the tank body 1, a limiting groove 28 is provided on the mounting frame 27, and a limiting block 29 is provided on the filter screen cover 7, and the limiting block 29 and the limiting groove 28 are engaged with each other. When the overall installation is performed, the stirring shaft 3 is driven to extend into the interior of the tank body 1 through the top cover 2, and the limiting block 29 on the filter screen cover 7 is engaged into the limiting groove 28 on the mounting frame 27. Through the cooperation of the limiting block 29 and the limiting groove 28, the rotation of the filter screen cover 7 inside the tank body 1 can be limited, so that when the stirring shaft 3 rotates, the filter screen cover 7 will not rotate with it, so as to realize the filtration of nano iron phosphate during feeding, and at the same time improve the uniformity of feeding, and this is convenient for overall installation and disassembly, and convenient to use.

[0040] In summary, when in use, the nano-iron phosphate raw material to be reacted is transported to the inside of the tank body 1 through the feed pipe 18, and the nano-iron phosphate raw material entering the tank body 1 will fall on the spiral guide blade 5; the motor 4 is started, and the stirring shaft 3 is driven to rotate by the motor 4, and the stirring shaft 3 will synchronously drive the spiral guide blade 5, the scraper 6 and the stirring assembly 8 to rotate; in this process, the nano-iron phosphate raw material falling on the spiral guide blade 5 can be evenly landed on the filter screen cover 7 under the rotation of the spiral guide blade 5 and the cooperation with the drop port 17, and evenly fall to the stirring assembly 8 position at the bottom of the tank body 1 through the filter screen cover 7;

[0041] In this embodiment, an annular spray pipe structure can be provided at the inner top of the top cover 2, which is used to connect an external water source to supply water to the tank body 1, so that the nano-iron phosphate raw material can be sprayed synchronously during the process of entering the tank body 1, thereby improving the contact uniformity of the nano-iron phosphate raw material, thereby improving the hydrolysis reaction efficiency of the nano-iron phosphate raw material and reducing the time required for subsequent stirring; wherein, the filter screen 7 can filter the nano-iron phosphate raw material and intercept the agglomerated impurities therein;

[0042] At the same time, under the rotation of the scraper 6, the surface of the filter screen 7 can be scraped to improve the smoothness of the material falling from the filter screen 7. At the same time, the uniformity of the material falling can be further improved, and the stirring and mixing efficiency in the hydrolysis reaction process of the nano-iron phosphate raw material can be further improved; after the nano-iron phosphate raw material is mixed with water and enters the tank body 1, the mixed solution in the tank body 1 is heated by conveying a heating medium to the heating coil 10, wherein the detection and control of the heating temperature are prior arts and are not described in detail in the present utility model;

[0043] In this embodiment, the top end of the heating coil 10 is reversely spirally wound on the outside of the heating coil 10, and a heat-insulating coil 11 is formed. In this way, the heating medium in the heating coil 10 flows in the heat-insulating coil 11 when it flows out, so that the residual heat in the heating medium forms a heat-insulating layer on the outside of the heating coil 10, reducing the heat loss of the heating medium in the heating coil 10, improving the heat exchange efficiency inside the tank 1, and thus improving the reaction efficiency of the nano-iron phosphate during hydrolysis; at the same time, the utility model is provided with a heat-insulating noise reduction layer on the outside of the heat-insulating coil 11. 12, a protective shell 13 is arranged on the outside of the heat preservation and noise reduction layer 12, wherein the heat preservation and noise reduction layer 12 comprises a fireproof heat preservation cotton layer 24 arranged in contact with the heat preservation coil 11, a sound-absorbing cotton layer 25 is arranged on the outside of the fireproof heat preservation cotton layer 24, and a sound-absorbing board layer 26 is arranged on the outside of the sound-absorbing cotton layer 25, so that the heat preservation and heat insulation effect of the heating coil 10 during heating can be further enhanced by the arrangement of the fireproof heat preservation cotton layer 24, and the heat exchange efficiency can be improved. At the same time, the cooperation of the sound-absorbing cotton layer 25 and the sound-absorbing board layer 26 can improve the overall sound absorption and noise reduction effect during use;

[0044] The solution after the reaction is completed can be discharged outwards through the drain pipe 14 at the bottom of the tank body 1, and the impurities intercepted by the filter screen cover 7 can be discharged outwards through the slag discharge pipe 15, which is convenient to use.

[0045] The foregoing description of specific exemplary embodiments of the utility model is for the purpose of illustration and illustration. These descriptions are not intended to limit the utility model to the precise form disclosed, and it is clear that many changes and variations can be made based on the above teachings. The purpose of selecting and describing the exemplary embodiments is to explain the specific principles of the utility model and its practical application, so that those skilled in the art can realize and utilize various different exemplary embodiments of the utility model and various different options and changes. The scope of the utility model is intended to be defined by the claims and their equivalents.

Claims

1. A nanoscale ferric phosphate hydrolysis reaction device, characterized in that: include: A tank body, wherein a top cover is arranged on the top of the tank body, a stirring shaft is rotatably mounted on the top cover through a bearing, and a motor is arranged in transmission connection with the stirring shaft; The stirring shaft is provided with spiral guide blades, scrapers, filter screens and stirring components in order from top to bottom. The filter screens are rotatably mounted on the stirring shaft through bearings, and a limited position mounting structure is provided between the filter screens and the tank body. The tank body includes a heat-conducting inner shell, a heating coil is arranged on the outside of the heat-conducting inner shell, the top end of the heating coil is reversely spirally wound on the outside of the heating coil to form a heat-insulating coil, a heat-insulating noise reduction layer is arranged on the outside of the heat-insulating coil, and a protective outer shell is arranged on the outside of the heat-insulating noise reduction layer.

2. The nanoscale ferric phosphate hydrolysis reaction device according to claim 1, characterized in that: A liquid discharge pipe is arranged at the bottom end of the tank body, a slag discharge pipe is arranged on the side wall of the tank body in coordination with the filter screen, and valves are arranged on both the slag discharge pipe and the liquid discharge pipe.

3. The nanoscale ferric phosphate hydrolysis reaction device according to claim 1, characterized in that: A plurality of blanking openings are evenly arranged on the spiral guide blades.

4. The nanoscale ferric phosphate hydrolysis reaction device according to claim 1, characterized in that: A feed pipe is arranged on the top cover, and a feed control valve is arranged on the feed pipe.

5. The nanoscale ferric phosphate hydrolysis reaction device according to any one of claims 1 to 4, characterized in that: The stirring assembly comprises a first spiral stirring blade arranged on the stirring shaft, and a second spiral stirring blade is arranged on the outer side of the first spiral stirring blade in the opposite direction.

6. The nanoscale ferric phosphate hydrolysis reaction device according to claim 5, characterized in that: A stirring column is arranged on the stirring shaft, the first spiral stirring blade and the second spiral stirring blade are both partially fixed on the stirring column, and a turbulent stirring blade is arranged at the tail end of the stirring column.

7. The nanoscale ferric phosphate hydrolysis reaction device according to claim 1, characterized in that: The heat-insulating and noise-reducing layer comprises a fireproof heat-insulating cotton layer arranged in close contact with the heat-insulating coil, a sound-absorbing cotton layer is arranged on the outer side of the fireproof heat-insulating cotton layer, and a sound-absorbing board layer is arranged on the outer side of the sound-absorbing cotton layer.

8. The nanoscale ferric phosphate hydrolysis reaction device according to claim 1, characterized in that: A mounting frame is arranged on the inner wall of the tank body, a limiting groove is arranged on the mounting frame, a limiting block is arranged on the filter screen cover, and the limiting block and the limiting groove are engaged with each other.

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