Superfine magnesium hydroxide powder modification device

Abstract

The utility model aims to solve the problem of poor modification effect caused by insufficient contact between powder at part of positions and a modifier in the prior art, and provides a superfine magnesium hydroxide powder modification device which comprises an atomizer, a pressurizer, a guide pipe, a pressure release valve, a turbulent flow column, a discharge hole, a spray head, a tank body and a stirring head, the pressurizer and the atomizer are connected to the inner side of the tank body through a guide pipe, a pressure release valve is arranged at the upper position of the side wall of the tank body, a plurality of turbulent flow columns are vertically and fixedly connected to the inner wall of the tank body, a discharge port for guiding out finished products is fixedly connected to the bottom of the tank body, and a nozzle for outputting a modifier is arranged at one end, located on the inner side of the tank body, of the guide pipe; the stirring head is rotationally connected to the bottom of the tank and located in the tank. The problem of poor modification effect caused by insufficient contact between the powder of the parts and the modifier in the prior art is solved, and the overall modification effect of the finished product is finally improved.

Description

Technical Field

[0001] The utility model relates to the technical field, in particular to a superfine magnesium hydroxide powder modification device. Background Art

[0002] The surface modification of mineral powders is a problem that powder manufacturers often face. The selection of equipment has a great influence on the modification effect of powders. There are two common modification methods. One is to add a modifier directly to the powder and then stir and disperse it for modification. The other is to perform surface modification in the liquid phase and achieve a good modification effect after drying. The latter has a more obvious modification effect than the former. At present, liquid phase modification devices are widely popular on the market. For continuous production, higher requirements are put forward for modification devices. If the modification time can be shortened while ensuring good product modification effects, production efficiency can be improved. Magnesium hydroxide is a non-toxic and environmentally friendly inorganic flame retardant, which is widely used in plastics, coatings, papermaking and other industries. However, it has poor compatibility with some substrates and needs to be modified. Some manufacturers mainly modify magnesium hydroxide through high-speed stirring machines or continuous dry methods. However, the market has higher and higher requirements for the activation degree of magnesium hydroxide after modification. Such modification methods have gradually failed to meet the requirements of the market.

[0003] A Chinese patent with application number 202120396434.3 discloses a device for modifying ultrafine magnesium hydroxide powder, including a modified tank body, a stirring blade, an automatic pressure valve, an atomizer, a pressurizer and a duct with air holes. In the modified tank, a duct with air holes is arranged at the center of the tank and below the stirring blade; two groups of vertical stirring blades are arranged inside the modified tank body, each driven by a motor; the duct with air holes in a vertical position extends out of the modified tank body and is connected to the right side of the pressurizer; the left side of the pressurizer is connected to the atomizer; an air inlet is arranged at the top of the pressurizer; an automatic pressure valve is arranged at the bottom of the pressurizer; and the lower part of the modified tank body is a discharge port. A valve switch is provided on the pipe connected to the discharge port. The utility model device atomizes and then pressurizes the modifier to enter the liquid phase with the air flow bubble, so that the modifier is in more complete contact with the modified material and the modification time is shortened;

[0004] However, this device still has some shortcomings in actual use: when the stirring blades of the equipment rotate, the magnesium hydroxide will form a vortex, and the powder near the bottom and wall of the tank will not be stirred properly, resulting in insufficient contact between the powder in these areas and the modifier, resulting in poor modification effect, and ultimately affecting the overall modification effect of the finished product.

[0005] Therefore, a redesign is urgently needed to solve the above problems. Utility Model Content

[0006] The utility model aims to provide an ultrafine magnesium hydroxide powder modification device to solve the problem that the powder at some positions in the prior art is not in sufficient contact with the modifier, resulting in poor modification effect.

[0007] The utility model provides an ultrafine magnesium hydroxide powder modification device, comprising an atomizer, a pressurizer, a conduit, a pressure relief valve, a spoiler column, a material outlet, a nozzle, a tank body and a stirring head; the pressurizer is fixedly connected to the upper end of the tank body, the atomizer is fixedly connected to one end of the pressurizer away from the tank body, the pressurizer and the atomizer are connected to the inner side of the tank body through the conduit, a pressure relief valve is arranged at the upper position of the side wall of the tank body, a plurality of spoiler columns are vertically fixedly connected to the inner wall of the tank body, the material outlet for exporting the finished product is fixedly connected to the bottom of the tank body, a nozzle for outputting the modifier is arranged at one end of the conduit located inside the tank body, and the stirring head is rotatably connected to the bottom of the tank body and is located inside the tank body.

[0008] Optionally, the bottom end of the conduit is also fixedly connected to a section of transverse conduit, and a plurality of nozzles are fixedly connected to the conduit via the transverse conduit. The nozzles are arranged on the lower surface of the transverse conduit, and the outlets of the nozzles face downward.

[0009] Optionally, the catheter is divided into an inner catheter and an outer catheter. The catheter located inside the tank body is the inner catheter, and the catheter located outside the tank body is the outer catheter. The inner catheter and the outer catheter are rotationally connected and the connection is sealed. The inner catheter is rotationally connected to the tank body, and the rotation direction of the catheter is opposite to the rotation direction of the stirring head.

[0010] Optionally, the spoiler column is a hollow structure, a high-pressure air pipe is arranged in the cavity inside the spoiler column, a gas nozzle is arranged at the bottom end of the high-pressure air pipe, and the high-pressure air pipe is provided with high-pressure gas by a pressurizer.

[0011] Optionally, the stirring head includes a plurality of stirring columns, the stirring columns are arranged circumferentially along the rotating shaft of the stirring head, and the stirring head is directed upward.

[0012] Optionally, the can body includes a can body and a can cover, and the can cover is detachably fixedly connected to the can body.

[0013] Optionally, the inner conduit is driven to rotate by a rotating disk, the rotating disk is powered by a motor, the inner conduit is fixedly connected to the rotating disk, and the rotating disk is rotatably connected to the tank body.

[0014] Optionally, the inner conduit and the rotating disk are fixedly connected by a key connection, a key groove is arranged on the outer circumferential surface of the inner conduit, and a flat key is arranged on the inner surface of the rotating disk.

[0015] Optionally, the device further comprises a ladder and a working platform. The working platform is located outside the tank body, the working platform is arranged horizontally, and the working platform is connected to the ground via the ladder.

[0016] The beneficial effects of the utility model are as follows: the atomizer atomizes the modifier and then transports it to the pressurizer through the conduit. After the pressurizer is pressurized, the modifier passes through the conduit to the nozzle and is sprayed onto the powder. The stirring head rotates to stir the powder to rotate circumferentially. When the powder rotates circumferentially, the powder close to the tank wall encounters a turbulent column and changes its direction of movement to move inward or downward, thereby avoiding the situation where the powder close to the tank wall and the tank bottom is in poor contact with the modifier, solving the problem in the prior art that the powder in these parts is in insufficient contact with the modifier, resulting in poor modification effect, and ultimately improving the overall modification effect of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the device;

[0019] Figure 2 It is the front view of the whole device;

[0020] Figure 3 It is a schematic diagram of the overall three-dimensional structure of the device;

[0021] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0022] Figure 5 yes Figure 3 Enlarged view of point B in the middle;

[0023] Figure 6 yes Figure 3 Enlarged view of point C in the middle;

[0024] Figure 7 yes Figure 3 Enlarged view of point D in the middle;

[0025] Figure 8 yes Figure 3 Enlarged view of point E in the middle.

[0026] Explanation of the reference numerals in the accompanying drawings: 1. atomizer; 2. pressurizer; 3. conduit; 4. spoiler column; 5. discharge port; 6. tank body; 7. nozzle; 8. high-pressure air pipe; 9. air nozzle; 10. stirring column; 11. tank cover; 12. rotating disk; 13. ladder; 14. working platform; 15. pressure relief valve. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. It is understandable that the specific embodiments described herein are only used to explain the utility model, rather than to limit the utility model. It should also be noted that, for ease of description, only the parts related to the utility model rather than all structures are shown in the drawings. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0028] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0029] A superfine magnesium hydroxide powder modification device, such as Figure 1-7 As shown, it includes: an atomizer, 1, a pressurizer 2, a conduit 3, a pressure relief valve 15, a spoiler column 4, a discharge port 5, a nozzle 7, a tank body and a stirring head; the tank body is a cylindrical structure, the tank body is vertically arranged, there is a cavity inside the tank body, and the ultrafine magnesium hydroxide powder is stored in the cavity, the pressurizer 2 is fixedly connected to the upper end of the tank body, the atomizer, 1 is fixedly connected to the end of the pressurizer 2 away from the tank body, the pressurizer 2 and the atomizer, 1 are connected to the inner side of the tank body through the conduit 3, the pressure relief valve 15 is arranged at the upper position of the side wall of the tank body, a plurality of spoiler columns 4 are vertically fixedly connected to the inner wall of the tank body, and the plurality of spoiler columns 4 are arranged in parallel, and the discharge port 5 for exporting the finished product is fixedly connected to the bottom of the tank body, and the conduit 3 is at one end of the inner side of the tank body. A nozzle 7 for outputting the modifier is provided, and a stirring head is rotatably connected to the bottom of the tank body and is located inside the tank body, and the stirring head is vertically arranged; an atomizer 1 atomizes the modifier and then delivers it to a pressurizer 2 through a conduit 3; after pressurization by the pressurizer 2, the modifier reaches the nozzle 7 through the conduit 3 and is sprayed onto the powder; the stirring head rotates and then stirs the powder to rotate circumferentially; when the powder rotates circumferentially, the powder close to the tank wall encounters a spoiler column 4 and changes its direction of movement to move inward or downward, thereby avoiding the situation where the powder close to the tank wall and the tank bottom is in poor contact with the modifier, and solves the problem in the prior art that the powder in these parts is in insufficient contact with the modifier, resulting in poor modification effect, and ultimately improves the overall modification effect of the finished product.

[0030] Furthermore, a section of transverse conduit 3 is fixedly connected to the bottom end of conduit 3 , and a plurality of nozzles 7 are fixedly connected to conduit 3 via transverse conduit 3 . Nozzles 7 are arranged on the lower surface of transverse conduit 3 , and outlets of nozzles 7 face downward.

[0031] Furthermore, the conduit 3 is divided into an inner conduit 3 and an outer conduit 3. The conduit 3 located inside the tank body is the inner conduit 3, and the conduit 3 located outside the tank body is the outer conduit 3. The inner conduit 3 and the outer conduit 3 are rotationally connected and the connection is sealed. The inner conduit 3 is rotationally connected to the tank body, and the rotation direction of the conduit 3 is opposite to the rotation direction of the stirring head. With this arrangement, the conduit 3 drives the nozzle 7 to rotate, and the nozzle 7 rotates circumferentially around the conduit 3 while spraying the atomized modifier, so that the contact between the modifier and the powder is more sufficient, further improving the modification effect.

[0032] It can be selected that the spoiler column 4 is a hollow structure, a high-pressure air pipe 8 is arranged in the cavity inside the spoiler column 4, an air nozzle 9 is arranged at the bottom end of the high-pressure air pipe 8, and the high-pressure air pipe 8 is provided with high-pressure gas by the pressurizer 2. Preferably, the high-pressure gas provided by the pressurizer 2 contains an atomizing modifier. The high-pressure air pipe 8 can blow up the powder under the stirring head, further avoiding the problem of insufficient modification of the powder at the bottom of the tank.

[0033] Optionally, the stirring head includes a plurality of stirring columns 10, and the stirring columns 10 are arranged circumferentially along the rotating shaft of the stirring head, and the stirring head is directed upward.

[0034] Optionally, the tank body includes a tank body 6 and a tank cover 11, and the tank cover 11 is detachably fixedly connected to the tank body 6 to facilitate the inspection of internal parts of the tank body.

[0035] For reference, the inner conduit 3 is driven to rotate by the rotating disk 12, the rotating disk 12 is powered by a motor, the inner conduit 3 is fixedly connected to the rotating disk 12, and the rotating disk 12 is rotatably connected to the tank body.

[0036] The inner conduit 3 and the rotating disk 12 are fixedly connected by a key connection. A key groove is arranged on the outer circumferential surface of the inner conduit 3 , and a flat key is arranged on the inner surface of the rotating disk 12 .

[0037] Furthermore, the device also includes a ladder 13 and a work platform 14 . The work platform 14 is located outside the tank body, is horizontally arranged, and is connected to the ground through the ladder 13 .

[0038] When the device is working, the atomizer 1 atomizes the modifier and then transports it to the pressurizer 2 through the conduit 3. After the pressurizer 2 is pressurized, the modifier passes through the conduit 3 to reach the nozzle 7 and is then sprayed onto the powder. The rotating disk 12 drives the inner conduit 3 to rotate, and the inner conduit 3 drives the nozzle 7 to rotate. The nozzle 7 sprays the atomized modifier while rotating circumferentially around the conduit 3, so that the contact between the modifier and the powder is more sufficient. The stirring head rotates and then stirs the powder to rotate circumferentially. When the powder rotates circumferentially, the powder close to the tank wall encounters the spoiler column 4 and changes its direction of movement to move inward or downward, thereby avoiding the situation where the powder close to the tank wall and the bottom of the tank has poor contact with the modifier. The high-pressure air pipe 8 can blow up the powder under the stirring head, further avoiding the problem of insufficient modification of the powder at the bottom of the tank. When the discharge port 5 is opened and the powder is discharged, the stirring head rotates slowly to stir the powder, and the pressurizer 2 outputs a micro-pressure, so that the powder can be discharged more smoothly.

[0039] The above description is only an implementation method of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made by using the contents of the specification and drawings of the present utility model, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present utility model.

Claims

1. A superfine magnesium hydroxide powder modification device, characterized in that, include: It includes an atomizer, a pressurizer, a conduit, a pressure relief valve, a spoiler column, a discharge port, a nozzle, a tank body and a stirring head; the pressurizer is fixedly connected to the upper end of the tank body, the atomizer is fixedly connected to the end of the pressurizer away from the tank body, the pressurizer and the atomizer are connected to the inner side of the tank body through the conduit, a pressure relief valve is arranged at the upper position of the side wall of the tank body, a plurality of spoiler columns are vertically fixedly connected to the inner wall of the tank body, the discharge port for outputting the finished product is fixedly connected to the bottom of the tank body, a nozzle for outputting the modifier is arranged at one end of the conduit located inside the tank body, and the stirring head is rotatably connected to the bottom of the tank body and is located inside the tank body.

2. The ultrafine magnesium hydroxide powder modification device according to claim 1, characterized in that: The bottom end of the conduit is also fixedly connected to a section of transverse conduit, and a plurality of nozzles are fixedly connected to the conduit through the transverse conduit. The nozzles are arranged on the lower surface of the transverse conduit, and the outlets of the nozzles face downward.

3. The ultrafine magnesium hydroxide powder modification device according to claim 2, characterized in that: The conduit is divided into an inner conduit and an outer conduit. The conduit located inside the tank body is the inner conduit, and the conduit located outside the tank body is the outer conduit. The inner conduit and the outer conduit are rotationally connected and the connection is sealed. The inner conduit is rotationally connected to the tank body, and the rotation direction of the conduit is opposite to the rotation direction of the stirring head.

4. The ultrafine magnesium hydroxide powder modification device according to claim 1, characterized in that: The spoiler column is a hollow structure. A high-pressure air pipe is arranged in the cavity inside the spoiler column. An air nozzle is arranged at the bottom of the high-pressure air pipe. The high-pressure air pipe is provided with high-pressure gas by a pressurizer.

5. The ultrafine magnesium hydroxide powder modification device according to claim 1, characterized in that: The stirring head comprises a plurality of stirring columns, and the stirring columns are arranged along the circumference of the stirring head rotating shaft, and the stirring head is directed upward.

6. The ultrafine magnesium hydroxide powder modification device according to claim 1, characterized in that: The tank body comprises a tank body and a tank cover, and the tank cover is detachably fixedly connected to the tank body.

7. The ultrafine magnesium hydroxide powder modification device according to claim 3, characterized in that: The inner conduit is driven to rotate by a rotating disk, the rotating disk is powered by a motor, the inner conduit is fixedly connected to the rotating disk, and the rotating disk is rotatably connected to the tank body.

8. The ultrafine magnesium hydroxide powder modification device according to claim 7, characterized in that: The inner conduit and the rotating disk are fixedly connected through a key connection. A key groove is arranged on the outer circumference surface of the inner conduit, and a flat key is arranged on the inner surface of the rotating disk.

9. The ultrafine magnesium hydroxide powder modification device according to claim 1, characterized in that: It also includes a ladder and a working platform. The working platform is located outside the tank body, the working platform is horizontally arranged, and the working platform is connected to the ground through the ladder.

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