Oxidation reaction device for iron oxide red

Abstract

The utility model discloses an oxidation reaction device for iron oxide red, which comprises a reaction kettle, a rotating mechanism is arranged at the bottom of the reaction kettle, a rotating shaft of the rotating mechanism extends upwards into the reaction kettle, a rotating aeration disc is arranged at the shaft end of the rotating shaft, an annular opening is arranged on the lower end face of the aeration disc, and the annular opening is communicated with the aeration disc. An air supply cylinder extending upwards is arranged at the bottom of the reaction kettle, the position of the air supply cylinder corresponds to the position of the annular opening in the lower end face of the aeration disc, the air supply cylinder extends upwards from the annular opening to the interior of the aeration disc, the air supply cylinder is not in contact with the aeration disc, and the upper end of the air supply cylinder is in an opening form. According to the device, the stirring fan blades for stirring, the heating rod for heating and the aeration disc and the aeration rod for aeration are arranged, the heating rod is arranged above the aeration disc, the stirring fan blades are arranged above the heating rod, the aeration work, the heating work and the stirring work can be better completed, the structural arrangement is reasonable, and the practicability is high. The oxidation reaction efficiency and quality can be correspondingly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of iron oxide production and preparation, in particular to an oxidation reaction device for iron oxide red. Background Art

[0002] In the prior art, the main preparation process of iron oxide red is to put the ferrous sulfate solution of the reaction raw material into a reactor and add sodium hydroxide solution to adjust the pH value. At a set temperature, an appropriate amount of air needs to be introduced and the iron oxide red product can be obtained after continuous stirring.

[0003] In the above process, the reaction and operation settings of each step are relatively important. For example, the stirring treatment of the stirring device, as well as the temperature setting and the aeration volume setting are all very important. The existing equipment and mechanisms have corresponding designs.

[0004] For example, the technical solution of authorization announcement number CN104828873B discloses an "oxidation reaction device for preparing red iron oxide". The technical solution is provided with a stirring device, an aeration device and a heating device. In particular, the heating device is provided in the form of a heating coil, so that the interior of the reactor is heated evenly, which can achieve better oxidation reaction results.

[0005] However, in the above technical solution, the setting of the aeration equipment at the bottom is unsatisfactory. Whether it is the above equipment or many existing equipment, the aeration equipment set at the bottom is usually fixed, and most iron oxide solutions have a certain viscosity. When the fixed aeration equipment is used for aeration, uneven aeration will occur, and there will be a problem of aeration dead corners, which will affect the oxidation reaction efficiency and quality of red iron oxide.

[0006] Therefore, in order to solve the above problems, it is necessary to develop an oxidation reaction device for red iron oxide that has a reasonable structure and can improve the quality and efficiency of the oxidation reaction. Utility Model Content

[0007] The purpose of this utility model is to provide an oxidation reaction device for red iron oxide in order to address the deficiencies in the prior art. The technical solution is as follows:

[0008] An oxidation reaction device for red iron oxide, comprising a reactor, a rotating mechanism provided at the bottom of the reactor, a rotating shaft of the rotating mechanism extending upward into the reactor, a rotating aeration disk provided at the end of the rotating shaft, an annular opening provided at the lower end surface of the aeration disk, and an upwardly extending air supply cylinder provided at the bottom of the reactor, the position of the air supply cylinder corresponding to the position of the annular opening at the lower end surface of the aeration disk, the air supply cylinder extending upward from the annular opening into the interior of the aeration disk, the air supply cylinder not contacting the aeration disk, and the upper end of the air supply cylinder being open;

[0009] The rotating shaft of the rotating mechanism is located in the air supply cylinder, and the rotating shaft is installed upward on the upper end of the aeration plate, so that the aeration plate can be driven to rotate accordingly, while the air supply cylinder below is fixed accordingly; an aeration device is also provided outside the reactor, which can send air into the air supply cylinder through the aeration pipe, and the air supply cylinder sends the air upward into the aeration plate, and then outputs the air through the rotating aeration plate.

[0010] Furthermore, an aeration rod is installed on the side wall of the aeration plate. The aeration rod is hollow inside and is provided with aeration holes. The aeration rod rotates with the aeration plate, and the air in the aeration plate is discharged from the aeration holes in the aeration rod accordingly.

[0011] Furthermore, the aeration plate is provided with four aeration rods, which are arranged in a cross pattern.

[0012] Furthermore, a heating rod is provided above the aeration plate, and a temperature control component is provided outside the heating rod to control the heating temperature of the heating rod accordingly.

[0013] Furthermore, a stirring blade is provided above the heating rod, and a stirring mechanism is provided at the upper end of the reactor. The shaft of the stirring mechanism is connected downwardly to the stirring mechanism and can drive the stirring blade to rotate and stir accordingly.

[0014] Furthermore, a feed pipe is provided at the upper end of the reactor, and a discharge pipe is also provided at the lower end of the reactor.

[0015] Furthermore, an electric valve is provided on the aeration pipe.

[0016] Furthermore, an L-shaped step body is provided at the annular opening of the lower end surface of the aeration plate; an L-shaped step body is also provided at the upper end of the air supply cylinder, and a ball is embedded between the two steps.

[0017] Beneficial effects: The utility model has the following beneficial effects:

[0018] 1) The device is provided with a stirring fan blade for stirring, a heating rod for heating, and an aeration plate and an aeration rod for aeration. The heating rod is arranged above the aeration plate, and the stirring fan blade is arranged above the heating rod, which can better complete the aeration work, heating work and stirring work. The structure is reasonably set up, which can correspondingly improve the efficiency and quality of the oxidation reaction;

[0019] 2) The aeration disc in this device can send the incoming air into the aeration rod for discharge while rotating, thus realizing rotary aeration. The overall structure is very clever, which increases the aeration range of the reactor and eliminates dead corners in aeration, effectively improving the aeration effect and quality.

[0020] 3) The aeration effect of the aeration disc in this device is mainly achieved by the structure of the annular opening set on the lower end surface of the aeration disc and the air supply cylinder that can be extended into the annular opening. When the aeration disc rotates, air can be supplied to the aeration disc through the air supply cylinder. The structural setting is ingenious and reasonable.

[0021] 4) This device is equipped with an L-shaped step body at the upper end of the air supply cylinder and the position of the annular opening of the aeration plate. The positions of the two step bodies are corresponding, and then a ball bearing is embedded between the two step bodies. After this arrangement, the bottom of the aeration plate is actually supported by the upper end of the air supply cylinder, the structure of the aeration plate is more stable, and it will not affect the rotation of the aeration plate itself. The structural setting is more reasonable and ingenious. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is the structural diagram of the utility model;

[0023] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0024] Figure 3 for Figure 1 Middle BB cross-section;

[0025] Figure 4 This is a diagram of the position of the annular opening in the present utility model. DETAILED DESCRIPTION

[0026] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. These embodiments are implemented based on the technical solutions of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention.

[0027] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, an oxidation reaction device for red iron oxide includes a reactor 1, a rotating mechanism 2 is provided at the bottom of the reactor 1, a rotating shaft 3 of the rotating mechanism 2 extends upward into the reactor 1, and a rotating aeration disk 4 is provided at the axial end of the rotating shaft 3, and the lower end surface of the aeration disk 4 is provided with an annular opening 5, and an upwardly extending air supply cylinder 6 is provided at the bottom of the reactor 1, and the position of the air supply cylinder 6 corresponds to the position of the annular opening 5 on the lower end surface of the aeration disk 4, and the air supply cylinder 6 extends upward from the annular opening 5 to the interior of the aeration disk 4, and the air supply cylinder 6 does not contact the aeration disk 4, and the upper end of the air supply cylinder 6 is open;

[0028] The rotating shaft 3 of the rotating mechanism 2 is located in the air cylinder 6, and the rotating shaft 3 is installed upward at the upper end of the aeration plate 4, so that the aeration plate 4 can be driven to rotate accordingly, while the air cylinder 6 below is fixed accordingly; an aeration device 7 is also provided on the outside of the reactor 1, which can send air into the air cylinder 6 through the aeration pipe 16 accordingly, and the air cylinder 6 sends the air upward into the aeration plate 4, and then outputs the air through the rotating aeration plate 4.

[0029] An aeration rod 8 is also installed on the side wall of the aeration plate 4. The aeration rod 8 is hollow inside and is provided with aeration holes 9. The aeration rod 8 rotates with the aeration plate 4, and the air in the aeration plate 4 is discharged from the aeration holes 9 in the aeration rod 8 accordingly.

[0030] A total of four aeration rods 8 are provided on the aeration plate 4, and the four aeration rods 8 are cross-arranged.

[0031] A heating rod 10 is further provided above the aeration plate 4 , and a temperature control component 11 is provided outside the heating rod 10 to control the heating temperature of the heating rod 10 accordingly.

[0032] A stirring blade 12 is further provided above the heating rod 10 , and a stirring mechanism 13 is provided at the upper end of the reactor 1 . The shaft of the stirring mechanism 13 is connected to the stirring mechanism 13 downwards and can drive the stirring blade 12 to rotate and stir accordingly.

[0033] A feed pipe 14 is provided at the upper end of the reactor 1 , and a discharge pipe 15 is also provided at the lower end of the reactor 1 .

[0034] An electric valve 17 is also provided on the aeration pipe 16; an L-shaped step 18 is also provided at the annular opening 5 on the lower end surface of the aeration plate 4; the upper end of the air supply cylinder 6 is also provided with an L-shaped step 18, and a ball 20 is embedded between the two steps 18.

[0035] The specific working principle of this device is as follows: when this device is working, the stirring device drives the stirring blades to stir the internal solution, which is normal stirring work; the heating rod under the stirring blades can be heated accordingly, and under the action of the temperature control devices on both sides, the heating temperature of the heating rod can be controlled accordingly, and a large number of heating rods can be provided to perform heating treatment together, which can ensure that the internal heating temperature is uniform and can reach the desired temperature conditions.

[0036] An aeration device is provided under the heating rod. The aeration device of this device has a different structure from the aeration device in the prior art; mainly, the aeration device of this device can rotate accordingly, and can discharge the internal air into the reactor while rotating, thereby increasing the aeration range and aeration quality, and there is no dead corner in aeration.

[0037] The details are as follows: First, a rotating mechanism is set up, the main shaft of the rotating mechanism extends inward, and an aeration disk is installed at the corresponding shaft end. However, the main shaft of the rotating mechanism is not directly installed on the lower end surface of the aeration disk, so the structure of the aeration disk needs to be set up accordingly.

[0038] The lower end face of the aeration plate of this device is provided with a circle of annular openings, and the main shaft of the rotating mechanism extends upward from the annular opening and can be installed correspondingly on the upper end of the aeration plate, which can also drive the entire aeration plate to rotate; at the same time, the bottom of the reactor is provided with an air supply cylinder, which extends upward and just extends from the annular opening into the interior of the aeration plate. After this arrangement, the overall structure is that the position of the air supply cylinder is fixed, but the aeration plate can rotate accordingly, and the air supply cylinder is connected to an aeration device externally. After the aeration equipment sends air into the air supply cylinder, the air floats upward and directly enters the aeration plate, and the aeration plate rotates accordingly, which can send air into the aeration rod on the outside, and discharge the air from the aeration hole of the aeration rod. The purpose of uniform aeration can be achieved through rotary aeration.

[0039] In this device, the air supply cylinder and the aeration plate are actually separately arranged, but the separation of the two will not affect the rotary aeration, but the structural setting of the aeration plate needs to be more stable; therefore, this device provides an L-shaped step body at the upper end of the air supply cylinder and the position of the annular opening of the aeration plate, and the positions of the two step bodies are corresponding, and then a ball bearing is embedded between the two step bodies. After this setting, the bottom of the aeration plate is actually supported by the upper end of the air supply cylinder, the structure of the aeration plate is more stable, and it will not affect the rotation of the aeration plate itself. The structural setting is more reasonable and ingenious.

[0040] The above specific implementation method is only a preferred embodiment of the present invention and is not intended to limit the implementation and scope of the claims of the present invention. All equivalent changes and modifications made based on the content of the patent protection scope of the present invention should be included in the scope of the patent application of the present invention.

Claims

1. An oxidation reaction device for red iron oxide, characterized in that: The invention comprises a reactor (1), wherein a rotating mechanism (2) is arranged at the bottom of the reactor (1), a rotating shaft (3) of the rotating mechanism (2) extends upward into the reactor (1), and a rotating aeration disc (4) is arranged at the shaft end of the rotating shaft (3), and a circular opening (5) is arranged at the lower end surface of the aeration disc (4); and an upwardly extending air delivery cylinder (6) is arranged at the bottom of the reactor (1), and the position of the air delivery cylinder (6) corresponds to the position of the circular opening (5) at the lower end surface of the aeration disc (4); the air delivery cylinder (6) extends upward from the circular opening (5) to the inside of the aeration disc (4), the air delivery cylinder (6) does not contact the aeration disc (4), and the upper end of the air delivery cylinder (6) is open; The rotating shaft (3) of the rotating mechanism (2) is located in the air supply cylinder (6), and the rotating shaft (3) is mounted upwardly on the upper end of the aeration disk (4), thereby driving the aeration disk (4) to rotate accordingly, while the air supply cylinder (6) below is fixed accordingly; an aeration device (7) is also arranged outside the reactor (1), and air can be supplied to the air supply cylinder (6) through an aeration pipe (16), and the air supply cylinder (6) supplies air upwardly to the aeration disk (4), and then the air is outputted through the rotating aeration disk (4).

2. The oxidation reaction device for red iron oxide according to claim 1, characterized in that: An aeration rod (8) is also installed on the side wall of the aeration plate (4). The aeration rod (8) is hollow inside and is provided with aeration holes (9). The aeration rod (8) rotates with the aeration plate (4), and the air in the aeration plate (4) is discharged from the aeration holes (9) in the aeration rod (8) accordingly.

3. The oxidation reaction device for red iron oxide according to claim 1, characterized in that: A total of four aeration rods (8) are arranged on the aeration plate (4), and the four aeration rods (8) are arranged in a cross shape.

4. The oxidation reaction device for red iron oxide according to claim 1, characterized in that: A heating rod (10) is also arranged above the aeration plate (4), and a temperature control component (11) is arranged outside the heating rod (10) to control the heating temperature of the heating rod (10) accordingly.

5. The oxidation reaction device for red iron oxide according to claim 4, characterized in that: A stirring blade (12) is also arranged above the heating rod (10), and a stirring mechanism (13) is arranged at the upper end of the reaction kettle (1). The shaft of the stirring mechanism (13) is connected to the stirring mechanism (13) downwards to form an integral whole, and can drive the stirring blade (12) to rotate and stir accordingly.

6. The oxidation reaction device for red iron oxide according to claim 1, characterized in that: The upper end of the reaction kettle (1) is provided with a feed pipe (14), and the lower end of the reaction kettle (1) is also provided with a discharge pipe (15).

7. The oxidation reaction device for red iron oxide according to claim 1, characterized in that: The aeration pipeline (16) is also provided with an electric valve (17).

8. The oxidation reaction device for red iron oxide according to claim 1, characterized in that: An L-shaped step body (18) is also provided at the annular opening (5) on the lower end surface of the aeration plate (4); an L-shaped step body (18) is also correspondingly provided at the upper end of the air delivery cylinder (6), and a ball (20) is embedded between the two step bodies (18).

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