CN217910443U

CN217910443U - High-efficiency energy-saving reactor for preparing iron oxide pigment

Info

Publication number: CN217910443U
Application number: CN202222141750.3U
Authority: CN
Inventors: 高福君; 刘福荣; 俞林忠
Original assignee: Shanghai Deyifu Color Technology Co ltd
Current assignee: Shanghai Hupan Color Technology Co ltd
Priority date: 2022-08-15
Filing date: 2022-08-15
Publication date: 2022-11-29
Anticipated expiration: 2032-08-15

Abstract

The utility model provides a preparation iron oxide pigment's energy-efficient reactor, include: the device comprises a barrel body, a partition plate, a gas distributor, a gas distribution disc and a discharging chassis, wherein the bottom of the barrel body is a gradual change section with a gradually reduced cross section, the small cross section end of the gradual change section is an outlet, the top of the barrel body is provided with an iron sheet inlet, an exhaust steam outlet and a material inlet, the iron sheet inlet is sealed by liquid seal, and the partition plate is arranged in the barrel body and is positioned at the large cross section end of the gradual change section of the barrel body; the gas distributor is arranged on one side of the isolation plate facing the discharging chassis; the air distribution disc is arranged at an outlet at the bottom of the barrel body; the one end on ejection of compact chassis and the exit linkage of the bottom of staving are provided with discharge gate and air inlet on the side on ejection of compact chassis, the utility model discloses can improve reaction rate, improve utilization ratio of raw materials, reduce steam consumption and reduce intensity of labour.

Description

High-efficiency energy-saving reactor for preparing iron oxide pigment

Technical Field

The utility model belongs to the technical field of chemical industry equipment, concretely relates to energy-efficient reactor of preparation iron oxide pigment.

Background

Iron oxide pigment is an important inorganic color pigment and has wide application in various coloring fields. The oxidation reactor is a key device for preparing the iron oxide pigment, and the quality of the performance of the oxidation reactor directly influences the quality and the working efficiency of the product.

The current pigment reactor for preparing ferric oxide comprises a barrel body with a flat bottom, wherein an air pipeline and a steam pipeline enter from the upper part of the barrel body and are inserted into the bottom of the barrel body for supplying air to participate in the reaction. According to the iron oxide pigment reactor, part of iron sheet deposited at the bottom cannot easily contact air, so that the iron sheet cannot participate in reaction; after discharging, the accumulated materials at the bottom and residual iron sheets are more and need to enter a container for cleaning by manpower, and the barrel is high in temperature and humidity, poor in working environment and dirty and messy in site; the reactor internal piping is difficult to inspect and repair. Therefore, the iron oxide pigment reactor in the prior art has the defects of low efficiency, high energy consumption, difficult cleaning, poor environment and the like.

SUMMERY OF THE UTILITY MODEL

The utility model is carried out in order to solve the problems, and aims to provide a high-efficiency energy-saving reactor for preparing iron oxide pigment, which can improve the reaction rate, improve the utilization rate of raw materials, reduce the steam consumption and reduce the labor intensity.

The utility model provides a preparation iron oxide pigment's energy-efficient reactor, a serial communication port, include: the device comprises a barrel body, wherein the bottom of the barrel body is a gradual change section with a gradually reduced cross section, the small cross section end of the gradual change section is an outlet, the top of the barrel body is provided with an iron sheet inlet, an exhaust steam outlet, a water inlet, a ferrous iron inlet, a seed crystal inlet, a steam inlet and a sampling port, and the iron sheet inlet is sealed by a liquid seal cover;

the air distribution disc is arranged at an outlet at the bottom of the barrel body;

one end of the discharging chassis is connected with an outlet at the bottom of the barrel body, and a discharging port and an air inlet are arranged on the side surface of the discharging chassis;

the isolation plate is arranged in the barrel body and is positioned at the large cross section end of the gradual change section of the barrel body;

the gas distributor is arranged on one side, facing the discharging chassis, of the first isolation plate, and the center line of the gas distributor coincides with the center line of the barrel body.

Further, in the high-efficiency energy-saving reactor for preparing the iron oxide pigment, the reactor can also have the following characteristics: the partition board is uniformly provided with a plurality of first holes, the aperture of each first hole is 15-35 mm, and the opening rate is 60-70%.

Further, in the high-efficiency energy-saving reactor for preparing the iron oxide pigment provided by the utility model, the high-efficiency energy-saving reactor can also have the following characteristics: the gas distributor includes: the connecting component comprises a frustum section and a uniform cross section, the cross section of the outer side face of the shell is gradually reduced, the connecting component and the frustum are installed in the shell, the cross sections of two bottom faces of the frustum are different and multiple, the central axis of the frustum, the central axis of the shell and the central axis of the connecting component are overlapped, the connecting component is located at the center and is located at the outermost layer, the frustum is sleeved on the connecting component in a layered mode according to the size of the area of the bottom face, the conical end of the connecting component is multiple, the small cross section end of the frustum and the small cross section end of the shell face towards the same direction, and a gas channel with an annular cross section is formed between the connecting component and the frustum and between two adjacent components in the shell.

Further, in the high-efficiency energy-saving reactor for preparing the iron oxide pigment provided by the utility model, the high-efficiency energy-saving reactor can also have the following characteristics: the gas distributor further comprises: a support member connecting the connecting member and the plurality of frustums, the support member located at a small cross-sectional end of the frustums.

Further, in the high-efficiency energy-saving reactor for preparing the iron oxide pigment provided by the utility model, the high-efficiency energy-saving reactor can also have the following characteristics: the frustum is a cone frustum, the cone angle of the frustum is 60-170 degrees, and the number of the frustum is two.

Further, in the high-efficiency energy-saving reactor for preparing the iron oxide pigment provided by the utility model, the high-efficiency energy-saving reactor can also have the following characteristics: the connecting line of the centers of the two end surfaces of the transition section is vertical to the cross section of the transition section, and the center line of the gas distributor is superposed with the center line of the barrel body.

Further, in the high-efficiency energy-saving reactor for preparing the iron oxide pigment, the reactor can also have the following characteristics: the gradual change section is a cone frustum, and the cone angle of the cone frustum is 25-130 degrees. Specifically, the specific cone angle is determined according to the design of the angle of repose of different materials of the iron oxide pigment.

Further, in the high-efficiency energy-saving reactor for preparing the iron oxide pigment, the reactor can also have the following characteristics: the gas distribution disc is provided with second holes, the aperture of each second hole is 6-15 mm, and the opening rate is 60-80%. In particular, the second aperture is designed according to the requirements of the gas distributor.

The utility model has the advantages of as follows:

the utility model relates to a preparation iron oxide pigment's energy-efficient reactor, the bottom of the staving of reactor designs for the toper, and the toper angle is confirmed according to each material angle of repose, therefore the ejection of compact is thorough, need not carry out artificial clearance, has reduced intensity of labour, has improved the site conditions, because the ejection of compact is thorough, therefore the product loss is few, and because the air is got into from the bottom of reactor, consequently can be blown by the air and continue to participate in the reaction after the non-reacted iron sheet landing to the toper bottom, thereby improve utilization ratio of raw materials; air enters the barrel body from the bottom of the reactor and is uniformly blended into the reaction space through the air distribution plate and the air distributor, so that the reaction efficiency is improved, the air consumption is reduced, and the steam consumption is greatly reduced; the partition plate can not only support the iron sheet, but also enable the steam and air in the reactor to be further distributed and optimized, thereby improving the oxidation rate.

Drawings

FIG. 1 is a schematic diagram of an energy efficient reactor for producing iron oxide pigments according to an embodiment of the present invention;

FIG. 2 is a top view of an energy efficient reactor for producing iron oxide pigments in an embodiment of the present invention;

figure 3 is a schematic structural diagram of an air distributor in an embodiment of the invention,

wherein the dashed arrows in fig. 3 represent the gas channels and the direction of gas flow.

Detailed Description

In order to make the technical means, creation characteristics, achievement purposes and functions of the present invention easy to understand, the following embodiments are specifically illustrated with reference to the attached drawings.

As shown in fig. 1, the energy efficient reactor 100 for preparing iron oxide pigment includes: the device comprises a barrel body 10, a partition plate 20, a gas distributor 30, a discharging chassis 40 and a gas distribution disc 50.

As seen in the direction of fig. 1, the upper portion of the barrel 10 is cylindrical, the bottom portion is a transition section with a gradually decreasing cross section, and the lower end (i.e., the end with a small cross section) of the transition section is an outlet. In this embodiment, the line connecting the centers of the two end surfaces of the transition section is perpendicular to the cross section of the transition section. Optimally, the gradual change section is a cone frustum, and the cone angle of the cone frustum is 25-130 degrees. Specifically, the taper angle is determined according to the angle of repose of different materials such as iron oxide pigments. Of course, the transition section may also be a regular prism table, such as a regular quadrangular prism table. The bottom of the barrel body 10 is designed to be conical, discharging is thorough after reaction, manual cleaning is not needed, labor intensity can be reduced, the field condition is improved, and product loss is less due to thorough discharging.

As shown in FIG. 2, the top of the barrel body 10 is provided with a sheet iron inlet 11, a waste steam outlet 12, a water inlet 13, a ferrous iron inlet 14, a seed crystal inlet 15, a steam inlet 16 and a sampling port 17. The iron sheet inlet 11 is sealed by a liquid sealing cover. The iron sheet inlet 11 is used for putting iron sheets into the barrel body 10, the exhaust steam outlet 12 is used for discharging exhaust steam in the barrel body 10 in the process of preparing the iron oxide pigment, the water inlet 13 is used for adding water into the barrel body 10, the ferrous inlet 14 is used for adding ferrous sulfate into the barrel body 10, the seed crystal inlet 15 is used for adding seed crystals into the barrel body 10, the steam inlet 16 is used for introducing steam into the barrel body 10, and the sampling port 17 is used for sampling from the barrel body 10 in the reaction process. Specifically, the iron sheet inlet 11 is provided at the center of the top of the tub 10.

The partition plate 20 is installed inside the tub 10, and the partition plate 20 is located at a position located at a large-cross-sectional end of the tapered structure of the tub 10, i.e., a junction of a cylindrical shape and a tapered shape as in fig. 1. The partition plate 20 not only supports the iron sheet but also further distributes the steam and air introduced into the tub 10, thereby increasing the oxidation rate. Specifically, the partition board 20 is uniformly provided with first holes, the aperture of the first holes is 15mm to 35mm, and the aperture ratio is 60% to 70%. The design of the partition plate 20 can effectively solve the problem of the clogging of the holes.

The gas distributor 30 is installed on the side of the isolation plate 20 facing the discharging chassis 40. In the present embodiment, the center line of the gas distributor 30 coincides with the center line of the tub 10. The air distributor 30 uniformly mixes the air entering the barrel 10 into the reaction space, thereby improving the reaction efficiency, reducing the air usage amount, and greatly reducing the steam usage amount.

In the present embodiment, as shown in fig. 3, the gas distributor 30 includes: a hollow connecting member 31, a plurality of hollow frustums 32, and a hollow housing 33. The connecting member 31 includes a frustum section and a constant cross-section. The outer side of the housing 33 is tapered in cross section, and the connecting member 31 and the plurality of frustums 32 are installed in the housing 33. The cross sections of the two bottom surfaces of different frustums are different (i.e. the areas of the small cross section ends and the large cross section ends of different frustums are different). The central axes of the plurality of frustums 32, the central axis of the outer shell 33, and the central axis of the connecting member 31 all coincide. The connecting component 31 is positioned in the center, the shell 33 is the outermost layer, and the frustum 32 is sleeved on the connecting component 31 in a laminating way according to the size of the cross section of the bottom surface. The tapered end of the connecting member 31, the small cross-sectional ends of the plurality of frustums 32, and the small cross-sectional end of the housing 33 all face in the same direction. The connecting member 31, the plurality of frustums 32, and the housing 33 each form a gas passage having an annular cross section therebetween. The gas distributor 30 avoids the problem that the perforated gas distributor is easy to generate silt blockage. Specifically, the small cross-sectional ends of the plurality of frustums 32 are coplanar with the tapered end of the connecting member 31, and the large cross-sectional end of the housing 33 is coplanar with the equal cross-sectional end of the connecting member 31. The air entering the barrel 10 from the discharging chassis 40 flows through the four air channels a, b, c and d respectively, so that the air is uniformly blended into the reaction space.

Specifically, the gas distributor 30 further includes a support member 34, the support member 34 connecting the connecting member 31 and the plurality of frustums 32, the support member 34 being located at the small cross-sectional end of the frustums 32. The support member 34 serves to support the frustum 32, so that the position between the frustum 32 and the connection member 31 is more stable.

Specifically, the frustum 32 is a circular cone, the taper angle of the frustum 32 is 60 ° to 170 °, and there are two frustums 32.

More specifically, the gas distributor 30 is a multi-stage gas distributor, and the stages of the gas distributor 30 are determined according to the diameter of the barrel 10.

The air distribution plate 50 is installed at an outlet of the bottom of the tub 10. Air enters the barrel body 10 from the discharging base plate 40, and is uniformly blended into the reaction space through the air distribution plate 50 and the air distributor 30, so that the reaction efficiency is improved, the air usage is reduced, the steam usage is greatly reduced, and the steam unit consumption can be reduced by more than 40%.

In this embodiment, the gas distribution plate 50 is provided with a plurality of second holes, the diameter of the second holes is 6mm to 15mm, and the opening ratio is 60% to 80%. Specifically, the second holes are provided as required by the gas distributor 30.

One end of the discharging chassis 40 is connected with the outlet at the bottom of the barrel body 10. The side of the discharging chassis 40 is provided with a discharging port 41 and an air inlet 42. The discharge port 41 is used for discharging the product after the reaction of the reactor is finished. The air inlet 42 is used for introducing air into the reactor, and the air enters the barrel body 10 from the bottom of the reactor, so that the air entering the reactor can blow up unreacted iron sheets sliding to the conical bottom again to continue to participate in the reaction, and the utilization rate of raw materials is improved. Specifically, the position of the air intake port 42 is higher than the position of the discharge port 41 as viewed in the direction of fig. 1.

When the iron oxide pigment is prepared, iron sheet is put into the barrel body 10 from an iron sheet inlet 11, water, ferrous sulfate and seed crystals are respectively put into the barrel body 10 from a water inlet 13, a ferrous inlet 14 and a seed crystal inlet 15, then steam is supplemented into the barrel body 10 from a steam inlet 16 according to the reaction temperature, air is introduced into the barrel body 10 from an air inlet 42 for oxidation reaction, and after the reaction is finished, a product is discharged from a discharge port 41.

The above embodiments are preferred examples of the present invention, and are not intended to limit the scope of the present invention.

Claims

1. An energy efficient reactor for preparing iron oxide pigment, comprising:

the device comprises a barrel body, wherein the bottom of the barrel body is a gradual change section with a gradually reduced cross section, the small cross section end of the gradual change section is an outlet, the top of the barrel body is provided with an iron sheet inlet, an exhaust steam outlet, a water inlet, a ferrous iron inlet, a seed crystal inlet, a steam inlet and a sampling port, and the iron sheet inlet is sealed by a liquid seal cover;

one end of the discharging base plate is connected with an outlet at the bottom of the barrel body, and a discharging port and an air inlet are arranged on the side surface of the discharging base plate;

the partition plate is arranged inside the barrel body and is positioned at the large cross section end of the gradual change section of the barrel body; and

and the gas distributor is arranged on one side of the isolation plate, which faces the discharging chassis.

2. The energy-efficient reactor for preparing iron oxide pigment according to claim 1, characterized in that:

the partition board is uniformly provided with a plurality of first holes, the aperture of each first hole is 15-35 mm, and the aperture ratio is 60-70%.

3. The energy efficient reactor for preparing iron oxide pigment according to claim 1, wherein:

the gas distributor includes: hollow connecting element, a plurality of hollow frustum and hollow shell, the connecting element includes frustum section and cross section such as, the cross section of the lateral surface of shell reduces gradually, connecting element and a plurality of the frustum is all installed in the shell, and is different the cross section of two bottom surfaces of frustum all is different, and is a plurality of the axis of frustum, the axis of shell and the axis of connecting element all coincide, the connecting element is located the center, the shell is outermost, the frustum overlaps according to the big or small layer range upon range of cover of bottom surface area on the connecting element, the frustum end of connecting element, a plurality of the little cross section end of frustum, the little cross section end of shell is towards same direction, connecting element, a plurality of the frustum all form the cross section between two adjacent components in the shell and be annular gas passage.

4. The energy efficient reactor for preparing iron oxide pigment according to claim 3, wherein:

the gas distributor still includes: a support member connecting the connecting member and the plurality of frustums, the support member being located at a small cross-section end of the frustum.

5. The energy efficient reactor for preparing iron oxide pigment according to claim 3, wherein:

the frustum is a circular cone, the cone angle of the frustum is 60-170 degrees, and the number of the frustum is two.

6. The energy efficient reactor for preparing iron oxide pigment according to claim 1, wherein:

the connecting line of the centers of the two end faces of the transition section is vertical to the cross section of the transition section, and the center line of the gas distributor is superposed with the center line of the barrel body.

7. The energy efficient reactor for preparing iron oxide pigment according to claim 6, characterized in that:

the gradual change section is a cone frustum, and the cone angle of the cone frustum is 25-130 degrees.

8. The energy efficient reactor for preparing iron oxide pigment according to claim 1, wherein:

the gas distribution disc is provided with second holes, the aperture of each second hole is 6-15 mm, and the opening rate is 60-80%.