Pressurizing, stirring and shearing carbonization tower

Abstract

The utility model discloses a pressurizing, stirring and shearing carbonization tower, which comprises a tank body, a material inlet pipe, a material outlet pipe and a material outlet pipe, the rotary driving mechanism is mounted at the upper end of the tank body and is provided with a rotary output shaft, the rotary output shaft is connected with a stirring shaft, and stirring blades are mounted on the stirring shaft; the shearing cutterhead is fixedly mounted on the stirring shaft, and shearing blades are arranged on the peripheral side of the shearing cutterhead; the gas distribution pipe assembly is mounted at the bottom of the carbonization cavity and is provided with gas distribution holes. The rotary driving mechanism drives the stirring shaft and the stirring blades to rotate through the rotary output shaft, so that a medium in the carbonization cavity is stirred, pressurized carbon dioxide gas is fully contacted and reacted with raw materials, the carbonization efficiency and uniformity are improved, the shearing blades rotate, the medium is rotationally cut, bubbles can be scattered, and the carbonization effect is improved. Therefore, bubbles fully contact and react with the raw materials, and the mixing reaction effect of carbon dioxide gas and the raw materials is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of metal preparation, in particular to a pressurized stirring and shearing carbonization tower. Background Art

[0002] In the production of magnesium metal from dolomite, carbonization is a very important step, which affects the efficiency of magnesium metal production. For example, in the process of separating calcium and magnesium from dolomite after roasting, carbonization treatment is usually carried out in a carbonization tower. The carbonization tower is a key equipment. Its function is to promote the carbonization reaction, reacting carbon dioxide with calcium hydroxide to form calcium carbonate precipitation, and reacting carbon dioxide with magnesium hydroxide to form magnesium bicarbonate that dissolves in water. This is one of the important steps in the production of magnesium metal.

[0003] The carbon dioxide gas utilization rate and reaction efficiency of the existing carbonization tower are still low, which affects the carbonization efficiency and causes incomplete separation of calcium and magnesium. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a pressurized stirring and shearing carbonization tower.

[0005] In order to achieve the above purpose, the technical solution adopted by the present utility model is as follows:

[0006] A pressurized stirring and shearing carbonization tower comprises: a tank body with a carbonization chamber therein, a discharge port being provided at the bottom of the carbonization chamber, and the tank body being connected to a feed pipe communicating with the carbonization chamber; a rotary drive mechanism being mounted on the upper end of the tank body and having a rotary output shaft, the rotary output shaft being connected to a stirring shaft, and a stirring blade being mounted on the stirring shaft; a shearing disc being fixedly mounted on the stirring shaft and having a shearing blade provided on the outer peripheral side, the shearing blade and the shearing disc having an angle so that the shearing blade has a force that pushes the medium to flow downward when rotating with the stirring shaft; and an air distribution pipe assembly being mounted on the bottom of the carbonization chamber, the air distribution pipe assembly having an air distribution hole, and the air distribution pipe assembly being connected to an air inlet pipe extending out of the carbonization chamber.

[0007] Furthermore, the air outlet direction of the air distribution holes is downward and inclined in a direction away from the stirring axis.

[0008] Furthermore, the air distribution pipe assembly includes a plurality of annular pipes arranged concentrically and spaced apart, the air distribution holes are formed on the peripheral walls of the annular pipes and are arranged and distributed along the circumference of the annular pipes, and the plurality of annular pipes are connected by connectors.

[0009] Furthermore, the stirring blades are provided in two groups and are spaced apart in an upper and lower manner, and the rotation directions of the stirring blades in the upper and lower groups are opposite. The rotation direction of the upper stirring blades is downward, so as to have a force to push the medium to flow downward during rotation, and the lower stirring blades are arranged above the air distribution pipe assembly.

[0010] Furthermore, a plurality of shear discs are arranged at intervals along the vertical direction.

[0011] Furthermore, the shearing disc includes two semi-discs, a half sleeve is provided in the center of the semi-disc, the half sleeves on the two semi-discs are connected and fixed and wrap the stirring shaft, and the shearing blades are arranged around the arc edge of the semi-disc.

[0012] Furthermore, connecting plates are provided on both sides of the half sleeve, and the connecting plates are provided with connecting holes. The connecting holes on the connecting plates on the two half sleeves are aligned and fasteners are installed.

[0013] Furthermore, the two corresponding half sleeves and the stirring shaft are provided with corresponding holes for connection and fixation via fasteners.

[0014] Furthermore, the upper half of the tank body is connected to a pressure relief pipe communicating with the carbonization chamber, and a pressure relief valve is installed on the pressure relief pipe.

[0015] Furthermore, the upper half of the tank body is connected to an overflow pipe communicating with the carbonization chamber, the overflow pipe extends to the height position of the lower half of the tank body, and an overflow valve is installed on the overflow pipe.

[0016] The utility model has the following beneficial effects:

[0017] The feed pipe is used to transport raw materials into the carbonization chamber. The rotary drive mechanism drives the stirring shaft and stirring blades to rotate by rotating the output shaft, thereby stirring the medium in the carbonization chamber, allowing the pressurized carbon dioxide gas to fully contact and react with the raw materials, thereby improving the carbonization efficiency and uniformity. The shearing knife disc is fixed to the stirring shaft, rotates with the stirring shaft, and drives the shearing blades to rotate, performing rotary cutting on the medium, which can break up the bubbles, allowing the bubbles to more fully contact and react with the raw materials, enhancing the mixing reaction effect of the carbon dioxide gas and the raw materials, and further improving the carbonization efficiency.

[0018] In addition to the above-described purposes, features and advantages, the present invention has other purposes, features and advantages. The present invention will be further described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which constitute part of this application, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0020] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0021] Figure 2 It is a structural diagram of the shear cutter disc;

[0022] Figure 3 It is a structural diagram of the air distribution pipe assembly;

[0023] Figure 4 yes Figure 3 Cross-sectional view at AA.

[0024] Legend:

[0025] Tank body 100, carbonization chamber 110, discharge port 111, feed pipe 120, pressure relief pipe 130, pressure relief valve 131, overflow pipe 140, overflow valve 141;

[0026] Rotation drive mechanism 200, rotation output shaft 210, stirring shaft 220, stirring blade 230;

[0027] Shear disc 300, half disc 310, half sleeve 311, connecting plate 312, shear blade 320, bolt 330;

[0028] Air distribution pipe assembly 400 , air distribution holes 410 , air inlet pipe 420 , annular pipe 430 , and connector 440 . DETAILED DESCRIPTION

[0029] It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0032] In addition, the descriptions of "first," "second," etc. in this utility model are for descriptive purposes only and should not be understood as indicating or implying their relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but this must be based on the fact that they can be implemented by ordinary technicians in this field. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by this utility model.

[0033] Please refer to Figure 1 and Figure 2 A pressurized stirring and shearing carbonization tower in a preferred embodiment of the present invention includes a tank body 100, a rotary drive mechanism 200, a shearing cutter disc 300, and an air distribution pipe assembly 400.

[0034] The tank body 100 has a carbonization chamber 110 therein, and a discharge port 111 is provided at the bottom of the carbonization chamber 110 . A valve can be installed at the discharge port 111 to control the discharge of the material. The tank body 100 is connected to a feed pipe 120 that communicates with the carbonization chamber 110 .

[0035] The rotary drive mechanism 200 is installed at the upper end of the tank body 100 . The rotary drive mechanism 200 has a rotary output shaft 210 . The rotary output shaft 210 is connected to a stirring shaft 220 . A stirring blade 230 is installed on the stirring shaft 220 .

[0036] The shearing disc 300 is fixedly mounted on the stirring shaft 220, and a shearing blade 320 is provided on the outer peripheral side of the shearing disc 300. The shearing blade 320 and the shearing disc 300 have an angle so that the shearing blade 320 has a force to push the medium to flow downward when rotating with the stirring shaft 220, so that the floating speed of the gas is slowed down and the gas is fully contacted and reacted with the raw material liquid; specifically, the shearing disc 300 is arranged horizontally, and the shearing blade 320 is inclined to the horizontal plane. The inclined shearing blade 320 can cut the bubbles obliquely when rotating, break up the bubbles, and allow the carbon dioxide gas to fully mix and react with the raw material.

[0037] The air distribution pipe assembly 400 is installed at the bottom of the carbonization chamber 110 . The air distribution pipe assembly 400 has an air distribution hole 410 . The air distribution pipe assembly 400 is connected to an air inlet pipe 420 extending out of the carbonization chamber 110 .

[0038] The utility model provides a pressurized stirring and shearing carbonization tower, in which a feed pipe 120 is used to transport raw materials into a carbonization chamber 110, and a rotary drive mechanism 200 drives a stirring shaft 220 and a stirring blade 230 to rotate by rotating an output shaft 210, thereby stirring the medium in the carbonization chamber 110, so that the pressurized carbon dioxide gas fully contacts and reacts with the raw materials, thereby improving the carbonization efficiency and uniformity, and a shearing blade 300 is fixed to the stirring shaft 220, rotates with the stirring shaft 220, and drives the shearing blade 320 to rotate, thereby rotary cutting the medium, breaking up bubbles, so that the bubbles more fully contact and react with the raw materials, enhancing the mixing reaction effect of the carbon dioxide gas and the raw materials, and further improving the carbonization efficiency.

[0039] Reference Figure 4 In some embodiments of the present invention, the air outlet direction of the air distribution hole 410 is downward and inclined in the direction away from the stirring shaft 220, that is, the air outlet direction of the air distribution hole 410 is downward and inclined outward, thereby throwing the bubbles outward, and the downward air outlet can effectively reduce the solid matter from entering the air distribution pipe assembly 400 and clogging the air distribution hole 410, effectively reducing the frequency of equipment maintenance and cleaning.

[0040] Reference Figure 3 In some embodiments of the present invention, the air distribution pipe assembly 400 includes a plurality of concentrically spaced annular pipes 430, and the air distribution holes 410 are formed on the peripheral wall of the annular pipe 430 and are arranged and distributed circumferentially along the annular pipe 430, thereby realizing an annular array arrangement of the air distribution holes 410, thereby improving the uniformity of aeration, and making the raw materials contact with the carbon dioxide gas as much as possible and reacting evenly. The multiple annular pipes 430 are connected by a connector 440, thereby connecting the multiple annular pipes 430 to facilitate overall installation.

[0041] Of course, in some embodiments, the connecting piece 440 can be a connecting pipe, thereby connecting multiple annular tubes 430 so that the multiple annular tubes 430 can ventilate each other, so that the air intake pipe 420 only needs to be connected to one annular tube 430 to achieve air supply to all annular tubes 430.

[0042] Reference Figure 1 In some embodiments of the present invention, two groups of stirring blades 230 are provided and are spaced apart in an upper and lower manner, and the rotation directions of the stirring blades 230 of the upper and lower groups are opposite. The rotation direction of the upper stirring blades 230 is downward, so that they have a force to push the medium to flow downward during rotation, thereby delaying the time for bubbles to float up, increasing the time for bubbles to contact with raw materials, and improving the reaction efficiency. The lower stirring blades 230 are arranged above the air distribution pipe assembly 400. The stirring of the lower stirring blades 230 can effectively reduce the deposition of fixed substances on the air distribution pipe assembly 400, and reduce the frequency of equipment cleaning and maintenance.

[0043] Reference Figure 1In some embodiments of the present invention, a plurality of shear discs 300 are arranged at intervals along the vertical direction, so as to stir and break up the bubbles at multiple positions, thereby improving the efficiency of the carbonization reaction.

[0044] Reference Figure 2 In some embodiments of the present invention, the shearing disc 300 includes two semi-discs 310, and a half sleeve 311 is provided in the center of the semi-disc 310. The half sleeves 311 on the two semi-discs 310 are connected and fixed and wrap and fix the stirring shaft 220. The shearing blades 320 are arranged around the arc edge of the semi-disc 310, so that the shearing disc 300 is conveniently installed on the stirring shaft 220. During disassembly and installation, there is no need to insert it from the end of the stirring shaft 220, and it is not affected by the stirring blades 230. During installation, the two semi-discs 310 can be directly installed at the corresponding height of the stirring shaft 220, and the installation is simple and convenient.

[0045] Reference Figure 2 In a further embodiment of the present invention, connecting plates 312 are provided on both sides of the half sleeve 311. The connecting plates 312 are provided with connecting holes. The connecting holes on the connecting plates 312 on the two half sleeves 311 are aligned and fasteners are installed. The fasteners can be bolts and nuts, thereby clamping and fixing the connecting plates 312 on the two half sleeves 311. The connecting plates 312 on both sides and the fasteners are used to achieve splicing and fixing of the two half sleeves 311.

[0046] Reference Figure 2 In a further embodiment of the present invention, the two corresponding half sleeves 311 and the stirring shaft 220 are provided with corresponding holes for connection and fixation by fasteners, the fasteners are bolts 330 and nuts, and the half sleeves 311 and the stirring shaft 220 are provided with holes for the bolts to pass through. The bolts 330 pass through the holes on the two half sleeves 311 and the stirring shaft 220 and are connected and fixed with the nuts, thereby realizing the connection and fixation of the two half sleeves 311 and the stirring shaft 220, and realizing the alignment installation of the shearing cutter disc 300 by aligning the holes and inserting the bolts 330, and realizing the synchronous rotation of the stirring shaft 220 and the shearing cutter disc 300, thereby realizing stable torque transmission.

[0047] Reference Figure 1 In some embodiments of the present invention, a pressure relief pipe 130 is connected to the upper half of the tank body 100 and communicates with the carbonization chamber 110. A pressure relief valve 131 is installed on the pressure relief pipe 130. The pressure relief valve 131 can set a pressure relief pressure, so that when air continuously enters the carbonization chamber 110, it will accumulate in the carbonization chamber 110. The pressure relief valve 131 can prevent the gas pressure from being too high, which may cause difficulty in air intake. When the gas pressure exceeds the set pressure, the pressure relief valve 131 will open, thereby forming a stable air pressure environment in the carbonization chamber 110. The air pressure is greater than the atmospheric pressure. The high-pressure environment can effectively improve the efficiency of carbonization.

[0048] Reference Figure 1 In some embodiments of the present invention, an overflow pipe 140 communicating with the carbonization chamber 110 is connected to the upper half of the tank body 100, and the overflow pipe 140 extends to the height position of the lower half of the tank body 100. An overflow valve 141 is installed on the overflow pipe 140. When the feed pipe 120 enters the raw material, the overflow valve 141 can be opened to prevent excessive raw materials from entering the carbonization chamber 110. After the raw material is stopped being added, the overflow valve 141 can be closed to form a stable air pressure environment in the carbonization chamber 110 to prevent gas from overflowing from the overflow pipe 140.

[0049] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A pressurized stirring shear carbonization tower, characterized in that: include: The tank body (100) has a carbonization chamber (110) therein, a discharge port (111) is provided at the bottom of the carbonization chamber (110), and the tank body (100) is connected to a feed pipe (120) in communication with the carbonization chamber (110); A rotary drive mechanism (200) is installed at the upper end of the tank body (100) and has a rotary output shaft (210). The rotary output shaft (210) is connected to a stirring shaft (220). A stirring blade (230) is installed on the stirring shaft (220). A shearing disc (300) is fixedly mounted on the stirring shaft (220), and a shearing blade (320) is provided on the outer peripheral side. The shearing blade (320) and the shearing disc (300) have an angle so that the shearing blade (320) has a force to push the medium to flow downward when rotating with the stirring shaft (220); An air distribution pipe assembly (400) is installed at the bottom of the carbonization chamber (110). The air distribution pipe assembly (400) has an air distribution hole (410). The air distribution pipe assembly (400) is connected to an air inlet pipe (420) extending out of the carbonization chamber (110).

2. The pressurized stirring shear carbonization tower according to claim 1, characterized in that: The air outlet direction of the air distribution holes (410) is downward and inclined in a direction away from the stirring shaft (220).

3. The pressurized stirring shear carbonization tower according to claim 1 or 2, characterized in that: The air distribution pipe assembly (400) comprises a plurality of concentrically spaced annular pipes (430), the air distribution holes (410) being formed on the peripheral walls of the annular pipes (430) and arranged and distributed along the circumference of the annular pipes (430), and the plurality of annular pipes (430) being connected via a connector (440).

4. The pressurized stirring shear carbonization tower according to claim 1, characterized in that: The stirring blades (230) are provided in two groups and are spaced apart from each other. The upper and lower groups of stirring blades (230) rotate in opposite directions. The upper stirring blades (230) rotate in a downward direction so as to have a force that pushes the medium to flow downward during rotation. The lower stirring blades (230) are provided above the air distribution pipe assembly (400).

5. The pressurized stirring shear carbonization tower according to claim 1, characterized in that: A plurality of shearing discs (300) are arranged vertically at intervals.

6. The pressurized stirring shear carbonization tower according to claim 1 or 5, characterized in that: The shearing blade (300) comprises two semi-circular discs (310), wherein a half sleeve (311) is provided at the center of the semi-circular disc (310), and the half sleeves (311) on the two semi-circular discs (310) are connected and fixed and wrap and fix the stirring shaft (220), and the shearing blades (320) are arranged around the arc edge of the semi-circular disc (310).

7. The pressurized stirring shear carbonization tower according to claim 6, characterized in that: Connecting plates (312) are provided on both sides of the half sleeve (311), and the connecting plates (312) are provided with connecting holes. The connecting holes on the connecting plates (312) on the two half sleeves (311) are aligned and fasteners are installed.

8. The pressurized stirring shear carbonization tower according to claim 7, characterized in that: The two corresponding half sleeves (311) and the stirring shaft (220) are provided with corresponding holes for connection and fixation via fasteners.

9. The pressurized stirring shear carbonization tower according to claim 1, characterized in that: The upper half of the tank body (100) is connected to a pressure relief pipe (130) communicating with the carbonization chamber (110), and a pressure relief valve (131) is installed on the pressure relief pipe (130).

10. The pressurized stirring shear carbonization tower according to claim 1, characterized in that: The upper half of the tank body (100) is connected to an overflow pipe (140) communicating with the carbonization chamber (110), the overflow pipe (140) extends to the height position of the lower half of the tank body (100), and an overflow valve (141) is installed on the overflow pipe (140).

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