A preparation process of modified high-whiteness sericite powder

Abstract

The present invention discloses a preparation process of modified high-whiteness sericite powder, which is applied in the technical field of sericite powder preparation. By setting a preparation mechanism, a temporary storage component can temporarily store sericite raw materials. A transmission component can drive a grinding component after being powered on and started. The grinding component can cooperate with a powder screening component to repeatedly grind sericite raw materials. The powder screening component can transport the sericite powder ground to a specified particle size into a retention component. A moisture removal component can provide heat energy for the retention component after being powered on and started. The retention component can store sericite powder and can also dry the sericite powder after impurity removal.

Description

Technical Field

[0001] The present invention belongs to the technical field of sericite powder preparation, and particularly relates to a preparation process of modified high-whiteness sericite powder. Background Art

[0002] Modified high-whiteness sericite has a wide range of uses. It is used in industries such as rubber, plastics, paints, ceramics, thermal insulation, cosmetics, pigments, papermaking, metallurgical refractories, and fire protection. The modified high-whiteness sericite powder is used as a whitening additive and added to the processed materials. When processing the modified high-whiteness sericite into powder, the modified high-whiteness sericite powder grinding and processing equipment is used to grind the modified high-whiteness sericite into powder and remove the impurities in the powder to increase the purity of the modified high-whiteness sericite powder.

[0003] Currently, a Chinese invention with the publication number of CN103111352A discloses a special air flow purification production line for sericite powder. The production line includes a grinding system, a purification system, a classification system, a dust removal system, an iron removal system, and an electric control system, fully considering several important links in the production of sericite powder, so that the stability of the equipment and the quality of the product can be better guaranteed.

[0004] The existing preparation process of modified high-whiteness sericite powder has the following disadvantages during processing:

[0005] 1. Lack of a structure for repeatedly grinding sericite powder, reducing the grinding efficiency of sericite powder;

[0006] 2. Lack of a structure for removing impurities with low acid and alkali resistance in sericite powder, thus reducing the quality of sericite powder preparation. Summary of the Invention

[0007] The purpose of the present invention is directed to an existing preparation process of modified high-whiteness sericite powder, and its advantages are:

[0008] 1. It has a structure for repeatedly grinding sericite powder, improving the grinding efficiency of sericite powder;

[0009] 2. It has a structure for removing impurities with low acid and alkali resistance in sericite powder, thus improving the quality of sericite powder preparation.

[0010] The above technical object of the present invention is achieved by the following technical solutions: A preparation device for modified high-whiteness sericite powder, comprising a preparation mechanism and an impurity removal mechanism. The preparation mechanism includes a temporary storage component, a transmission component, a grinding component, a powder screening component, a moisture removal component, and a retention component. The transmission component is bolted to the top of the temporary storage component, the grinding component is connected to the bottom of the transmission component, the powder screening component is bolted to the top inside the temporary storage component, the inside of the powder screening component is in contact with the surface of the grinding component, the moisture removal component is bolted to the bottom of the temporary storage component, and the retention component is bolted to the inside of the moisture removal component. The impurity removal mechanism includes a conveying component and a liquid storage component. The conveying component is connected to the front side of the temporary storage component, and the liquid storage component is connected to the front side of the conveying component.

[0011] By adopting the above technical solutions, by setting the preparation mechanism and the impurity removal mechanism, the preparation mechanism can repeatedly grind the sericite raw materials into fine powders, and the impurity removal mechanism can remove the acidic and alkaline impurities in the sericite powder.

[0012] The present invention is further provided as: The temporary storage component includes a storage tank, an exhaust pipe, and an exhaust valve. The exhaust pipe is connected to the top of the storage tank, and the exhaust valve is connected to the side of the exhaust pipe away from the storage tank.

[0013] By adopting the above technical solutions, by setting the temporary storage component, the storage tank can temporarily store the acid-base solution for sericite powder impurity removal and can provide space for the sericite powder impurity removal reaction process. The exhaust pipe can convey the gas generated during the dehumidification process to the exhaust valve, and the exhaust valve can facilitate the user to control the discharge of the gas.

[0014] The present invention is further provided as: The transmission component includes a limit housing, a conveying rotating pipe, and a servo motor group. The limit housing is bolted to the top of the storage tank, the conveying rotating pipe is rotatably connected to the inside of the limit housing, and the servo motor group is bolted to the inside of the limit housing.

[0015] By adopting the above technical solutions, by setting the transmission component, the limit housing can limit the conveying rotating pipe and the servo motor group. The conveying rotating pipe can convey the sericite raw materials into the grinding component. The servo motor group is an existing structure driven by a servo motor to drive a gear to drive the conveying rotating pipe to rotate, and can drive the conveying rotating pipe to rotate after being powered on and started.

[0016] The present invention is further provided as: The grinding component includes a conveying pipe, a discharge port, and a spiral grinding plate. The conveying pipe is connected to the bottom of the conveying rotating pipe, the discharge port is opened on the surface of the conveying pipe, and the spiral grinding plate is bolted to the surface of the conveying pipe.

[0017] With the above technical solution, by setting up the grinding assembly, the conveying pipe can transport the sericite raw material to the discharge port. When the conveying pipe rotates, the discharge port can, along with the centrifugal force, transport the sericite raw material into the powder screening assembly. The spiral grinding plate is a grinding plate with a spiral structure, which can cooperate with the powder screening assembly to grind the sericite powder, and at the same time can gradually transport the unground sericite raw material upward for repeated grinding.

[0018] The present invention is further configured as follows: The powder screening assembly includes a limit sleeve, an inner grinding plate, and a dense-hole sieve mesh. The limit sleeve is bolted to the top inside the storage tank, the inner grinding plate is bolted to the inside of the limit sleeve, the inside of the limit sleeve is in contact with the surface of the spiral grinding plate, and the dense-hole sieve mesh is bolted to the bottom of the limit sleeve.

[0019] With the above technical solution, by setting up the powder screening assembly, the limit sleeve can limit the inner grinding plate, the inner grinding plate can cooperate with the spiral grinding plate to grind the sericite raw material, and the dense-hole sieve mesh can intercept the sericite powder with a particle size larger than the pore diameter of the dense-hole sieve mesh, and allow the sericite powder with a particle size smaller than the dense-hole sieve mesh to fall into the retention assembly.

[0020] The present invention is further configured as follows: The moisture discharge assembly includes a limit base and a heater. The limit base is bolted to the bottom of the storage tank, and the heater is bolted to the surface of the storage tank.

[0021] With the above technical solution, by setting up the moisture discharge assembly, the limit base can support and limit the retention assembly and the heater. After being powered on and started, the heater can convert electrical energy into heat energy and transport the heat energy to the retention assembly.

[0022] The present invention is further configured as follows: The retention assembly includes a heat conduction ring, a heat conduction plate, and a drainage dense-hole plate. The heat conduction ring is bolted to the output end of the heater on the side close to the limit base, the surface of the heat conduction ring is bolted to the inside of the limit base, the heat conduction plate is bolted to the inside of the heat conduction ring, and the drainage dense-hole plate is bolted to the inside of the heat conduction plate.

[0023] With the above technical solution, by setting up the retention assembly, the heat conduction ring can evenly transport the heat energy conveyed by the heater to the heat conduction plate. The heat conduction plate can transport the heat energy to the sericite powder that has completed impurity removal for drying treatment of the sericite powder. The drainage dense-hole plate can discharge the acid solution and alkali solution after completing impurity removal.

[0024] The present invention is further configured as follows: The conveying assembly includes a connection seat, a corrosion-resistant liquid delivery pipe, and a corrosion-resistant liquid valve. The connection seat is bolted to the front side of the storage tank. The corrosion-resistant liquid delivery pipes are communicated on both sides of the front side of the connection seat. The corrosion-resistant liquid delivery pipes penetrate the connection seat and are communicated with the storage tank. The corrosion-resistant liquid valve is communicated at the top of the corrosion-resistant liquid delivery pipe.

[0025] With the above technical solution, by setting up the conveying assembly, the connecting seat can support the corrosion-resistant liquid delivery pipe, and the corrosion-resistant liquid delivery pipe can transport acid and alkali liquids into the storage tank to facilitate the acid-base impurity removal operation of sericite powder. The corrosion-resistant liquid valve can control the liquid storage assembly to transport acid and alkali liquids into the corrosion-resistant liquid delivery pipe.

[0026] The present invention is further configured as follows: The liquid storage assembly includes an alkali liquid tank, an acid liquid tank, and a liquid inlet. The alkali liquid tank is connected to the left side of the top of the corrosion-resistant liquid valve, the acid liquid tank is connected to the right side of the top of the corrosion-resistant liquid valve, and the liquid inlet is connected to the tops of the alkali liquid tank and the acid liquid tank.

[0027] With the above technical solution, by setting up the liquid storage assembly, the alkali liquid tank can store the alkali liquid for impurity removal, the acid liquid tank can store the acid liquid for impurity removal, and the liquid inlet can facilitate the injection of alkali liquid and acid liquid into the alkali liquid tank and the acid liquid tank respectively.

[0028] A preparation process for modified high-whiteness sericite powder includes the following steps:

[0029] S1. Grinding and drying: First, put the sericite raw material to be ground into the conveying pipe along the conveying rotating pipe, then close the conveying rotating pipe, and then power on and start the servo motor group. The servo motor group will rotate the conveying rotating pipe. While the conveying rotating pipe is rotating, it will drive the spiral grinding plate to rotate together. The sericite raw material will splash from the discharge port to the inner grinding plate along with the centrifugal force generated by the rotation. Then the spiral grinding plate will contact the sericite raw material on the inner grinding plate and grind the sericite raw material. The sericite raw material that has not been ground into the pore size of the fine mesh sieve will gradually rise along the gaps on the spiral grinding plate and fall again between the spiral grinding plate and the inner grinding plate due to gravity during the rising process for grinding until it is ground into powder with a particle size smaller than the pore size of the fine mesh sieve and falls onto the heat conducting plate for collection. After the impurity removal mechanism completes the impurity removal of the sericite powder, power on and start the heater. The heater will transfer heat to the heat conducting ring and the heat conducting plate, and the heat conducting plate will remove the moisture in the sericite powder after impurity removal until the moisture is removed.

[0030] S2. Acid-base impurity removal: First, fill the acid liquid tank with the acid liquid for impurity removal, and fill the alkali liquid tank with the alkali liquid for impurity removal. Then close the liquid inlet, and open the corrosion-resistant liquid valve at the bottom of the alkali liquid tank. The alkali liquid for impurity removal will flow into the preparation mechanism to perform alkaline impurity removal on the sericite powder. After the alkaline impurity removal is completed, drain the alkali liquid. Then open the corrosion-resistant liquid valve at the bottom of the acid liquid tank. The acid liquid for impurity removal will enter the preparation mechanism to perform acidic impurity removal on the sericite powder. Then drain the acid liquid and inject the acid liquid into the alkali liquid for neutralization.

[0031] In summary, the present invention has the following beneficial effects:

[0032] 1. By setting up a preparation mechanism, the temporary storage component can temporarily store sericite raw materials. The transmission component can drive the grinding component after being powered on and started. The grinding component can cooperate with the powder screening component to repeatedly grind the sericite raw materials. The powder screening component can transport the sericite powder ground to a specified particle size into the retention component. The moisture removal component can provide heat energy for the retention component after being powered on and started. The retention component can store the sericite powder and can also dry the sericite powder after impurity removal;

[0033] 2. By setting up an impurity removal mechanism, the conveying component can facilitate the user to control the transportation of the acid solution and the alkali solution in the liquid storage component into the preparation mechanism. The liquid storage component can store the acid solution and the alkali solution for impurity removal, so as to facilitate the acid-base impurity removal operation of the sericite powder and improve the purity of the sericite powder. Brief Description of the Drawings

[0034] Figure 1 is the overall structural schematic diagram of the present invention;

[0035] Figure 2 is the structural schematic diagram of the temporary storage component of the present invention;

[0036] Figure 3 is the structural schematic diagram of the transmission component of the present invention;

[0037] Figure 4 is the structural schematic diagram of the grinding component of the present invention;

[0038] Figure 5 is the structural schematic diagram of the powder screening component of the present invention;

[0039] Figure 6 is the structural schematic diagram of the moisture removal component and the retention component of the present invention;

[0040] Figure 7 is the schematic diagram of the conveying component and the liquid storage component of the present invention;

[0041] Figure 8 is the schematic diagram of the preparation process of the present invention.

[0042] Reference numerals: 1, preparation mechanism; 101, temporary storage component; 1011, storage tank; 1012, exhaust pipe; 1013, exhaust valve; 102, transmission component; 1021, limit housing; 1022, conveying rotating pipe; 1023, servo motor set; 103, grinding component; 1031, conveying pipe; 1032, discharge port; 1033, spiral grinding plate; 104, powder screening component; 1041, limit sleeve; 1042, inner grinding plate; 1043, dense hole sieve mesh; 105, moisture discharge component; 1051, limit base; 1052, heater; 106, retention component; 1061, heat conduction ring; 1062, heat conduction plate; 1063, drainage dense hole plate; 2, impurity removal mechanism; 201, conveying component; 2011, connecting seat; 2012, corrosion-resistant liquid delivery pipe; 2013, corrosion-resistant liquid valve; 202, liquid storage component; 2021, alkali liquid tank; 2022, acid liquid tank; 2023, liquid inlet. Detailed implementation manners

[0043] The present invention will be further described in detail below with reference to the accompanying drawings.

[0044] Embodiment 1:

[0045] Refer to Figures 1-6 , a modified high whiteness sericite powder preparation device, including a preparation mechanism 1. The preparation mechanism 1 includes a temporary storage component 101, a transmission component 102, a grinding component 103, a powder screening component 104, a moisture discharge component 105, and a retention component 106. The transmission component 102 is bolted to the top of the temporary storage component 101. The grinding component 103 is connected to the bottom of the transmission component 102. The powder screening component 104 is bolted to the top inside the temporary storage component 101. The inside of the powder screening component 104 is in contact with the surface of the grinding component 103. The moisture discharge component 105 is bolted to the bottom of the temporary storage component 101. The retention component 106 is bolted to the inside of the moisture discharge component 105. By providing the preparation mechanism 1, the temporary storage component 101 can temporarily store sericite raw materials. The transmission component 102 can drive the grinding component 103 after being powered on and started. The grinding component 103 can cooperate with the powder screening component 104 to repeatedly grind sericite raw materials. The powder screening component 104 can convey the sericite powder ground to a specified particle size into the retention component 106. The moisture discharge component 105 can provide heat energy for the retention component 106 after being powered on and started. The retention component 106 can store sericite powder and can also dry the sericite powder after impurity removal.

[0046] As Figure 2As shown, the temporary storage component 101 includes a storage tank 1011, an exhaust pipe 1012, and an exhaust valve 1013. The exhaust pipe 1012 is connected to the top of the storage tank 1011, and the exhaust valve 1013 is connected to the side of the exhaust pipe 1012 away from the storage tank 1011. By providing the temporary storage component 101, the storage tank 1011 can temporarily store the acid-base solution for removing impurities from sericite powder and can provide space for the reaction process of removing impurities from sericite powder. The exhaust pipe 1012 can transport the gas generated during the dehumidification process to the exhaust valve 1013, and the exhaust valve 1013 can facilitate the user to control the discharge of the gas.

[0047] As Figure 3 shown, the transmission component 102 includes a limit housing 1021, a conveying rotating pipe 1022, and a servo motor group 1023. The limit housing 1021 is bolted to the top of the storage tank 1011. The conveying rotating pipe 1022 is rotatably connected to the inside of the limit housing 1021, and the servo motor group 1023 is bolted to the inside of the limit housing 1021. By providing the transmission component 102, the limit housing 1021 can limit the conveying rotating pipe 1022 and the servo motor group 1023. The conveying rotating pipe 1022 can convey sericite raw materials into the grinding component 103. The servo motor group 1023 is an existing structure driven by a servo motor to drive a gear to drive the conveying rotating pipe 1022 to rotate, and can drive the conveying rotating pipe 1022 to rotate after being powered on and started.

[0048] As Figure 4 shown, the grinding component 103 includes a conveying pipe 1031, a discharge port 1032, and a spiral grinding plate 1033. The conveying pipe 1031 is connected to the bottom of the conveying rotating pipe 1022. The discharge port 1032 is opened on the surface of the conveying pipe 1031, and the spiral grinding plate 1033 is bolted to the surface of the conveying pipe 1031. By providing the grinding component 103, the conveying pipe 1031 can convey sericite raw materials to the discharge port 1032. The discharge port 1032 can, when the conveying pipe 1031 rotates, convey sericite raw materials into the sieving component 104 along with the centrifugal force. The spiral grinding plate 1033 is a grinding plate with a spiral structure, which can cooperate with the sieving component 104 to grind sericite powder, and can gradually convey the unground sericite raw materials upward for repeated grinding.

[0049] As Figure 5As shown in the figure, the powder screening assembly 104 includes a limit sleeve 1041, an inner grinding plate 1042, and a fine-hole sieve mesh 1043. The limit sleeve 1041 is bolted to the top inside the storage tank 1011. The inner grinding plate 1042 is bolted to the inside of the limit sleeve 1041. The inside of the limit sleeve 1041 is in contact with the surface of the spiral grinding plate 1033. The fine-hole sieve mesh 1043 is bolted to the bottom of the limit sleeve 1041. By providing the powder screening assembly 104, the limit sleeve 1041 can limit the inner grinding plate 1042. The inner grinding plate 1042 can cooperate with the spiral grinding plate 1033 to grind the sericite raw material. The fine-hole sieve mesh 1043 can intercept the sericite powder with a particle size larger than the pore diameter of the fine-hole sieve mesh 1043 and allow the sericite powder with a particle size smaller than the fine-hole sieve mesh 1043 to fall into the retention assembly 106.

[0050] As Figure 6 shown in the figure, the moisture removal assembly 105 includes a limit base 1051 and a heater 1052. The limit base 1051 is bolted to the bottom of the storage tank 1011. The heater 1052 is bolted to the surface of the storage tank 1011. By providing the moisture removal assembly 105, the limit base 1051 can support and limit the retention assembly 106 and the heater 1052. After the heater 1052 is powered on and started, it can convert electrical energy into heat energy and transport the heat energy to the retention assembly 106.

[0051] As Figure 6 shown in the figure, the retention assembly 106 includes a heat conduction ring 1061, a heat conduction plate 1062, and a drainage fine-hole plate 1063. The heat conduction ring 1061 is bolted to the output end of the heater 1052 on the side close to the limit base 1051. The surface of the heat conduction ring 1061 is bolted to the inside of the limit base 1051. The heat conduction plate 1062 is bolted to the inside of the heat conduction ring 1061. The drainage fine-hole plate 1063 is bolted to the inside of the heat conduction plate 1062. By providing the retention assembly 106, the heat conduction ring 1061 can evenly transport the heat energy transported by the heater 1052 to the heat conduction plate 1062. The heat conduction plate 1062 can transport the heat energy to the sericite powder after impurity removal to dry the sericite powder. The drainage fine-hole plate 1063 can discharge the acid solution and alkali solution after impurity removal.

[0052] Brief description of the usage process: First, put the sericite raw material to be ground into the conveying pipe 1031 along the conveying rotating pipe 1022. Then, close the conveying rotating pipe 1022, and then energize and start the servo motor group 1023. The servo motor group 1023 will rotate the conveying rotating pipe 1022. While the conveying rotating pipe 1022 is rotating, it will drive the spiral grinding plate 1033 to rotate together. The sericite raw material will splash from the discharge port 1032 to the inner grinding plate 1042 along with the centrifugal force generated by the rotation. Then, the spiral grinding plate 1033 will contact the sericite raw material on the inner grinding plate 1042 and grind the sericite raw material. The sericite raw material that has not been ground into the pore size of the dense pore sieve 1043 will gradually rise along the gap on the spiral grinding plate 1033, and while rising, it will fall again between the spiral grinding plate 1033 and the inner grinding plate 1042 due to gravity for grinding until it is ground into a powder with a particle size smaller than the pore size of the dense pore sieve 1043 and falls from the dense pore sieve 1043 onto the heat conducting plate 1062 for collection. After the impurity removal mechanism 2 completes the impurity removal of the sericite powder, energize and start the heater 1052. The heater 1052 will transfer heat to the heat conducting ring 1061 and the heat conducting plate 1062, and the heat conducting plate 1062 will remove the moisture in the sericite powder after impurity removal until the moisture is removed.

[0053] Example 2:

[0054] Reference Figure 7 , a preparation device for modified high whiteness sericite powder, includes an impurity removal mechanism 2. The impurity removal mechanism 2 includes a conveying component 201 and a liquid storage component 202. The conveying component 201 is connected to the front side of the temporary storage component 101, and the liquid storage component 202 is connected to the front side of the conveying component 201. By setting the impurity removal mechanism 2, the conveying component 201 can facilitate the user to control the delivery of the acid solution and the alkali solution in the liquid storage component 202 into the preparation mechanism 1. The liquid storage component 202 can store the acid solution and the alkali solution for impurity removal, so as to facilitate the acid-base impurity removal operation of the sericite powder and improve the purity of the sericite powder.

[0055] Such as Figure 7As shown, the conveying assembly 201 includes a connecting seat 2011, a corrosion-resistant liquid delivery pipe 2012, and a corrosion-resistant liquid valve 2013. The connecting seat 2011 is bolted to the front side of the storage tank 1011. The corrosion-resistant liquid delivery pipe 2012 communicates with both sides of the front side of the connecting seat 2011. The corrosion-resistant liquid delivery pipe 2012 passes through the connecting seat 2011 and communicates with the storage tank 1011. The corrosion-resistant liquid valve 2013 communicates with the top of the corrosion-resistant liquid delivery pipe 2012. By providing the conveying assembly 201, the connecting seat 2011 can support the corrosion-resistant liquid delivery pipe 2012. The corrosion-resistant liquid delivery pipe 2012 can deliver acid and alkali solutions into the storage tank 1011 to facilitate the acid-base impurity removal operation of sericite powder. The corrosion-resistant liquid valve 2013 can control the liquid storage assembly 202 to deliver acid and alkali solutions into the corrosion-resistant liquid delivery pipe 2012.

[0056] As Figure 7 shown, the liquid storage assembly 202 includes an alkali solution tank 2021, an acid solution tank 2022, and a liquid inlet 2023. The alkali solution tank 2021 communicates with the left side of the top of the corrosion-resistant liquid valve 2013. The acid solution tank 2022 communicates with the right side of the top of the corrosion-resistant liquid valve 2013. The liquid inlet 2023 communicates with the tops of the alkali solution tank 2021 and the acid solution tank 2022. By providing the liquid storage assembly 202, the alkali solution tank 2021 can store the alkali solution for impurity removal. The acid solution tank 2022 can store the acid solution for impurity removal. The liquid inlet 2023 can facilitate the injection of alkali and acid solutions into the alkali solution tank 2021 and the acid solution tank 2022 respectively.

[0057] Brief description of the usage process: First, fill the acid solution tank 2022 with the acid solution for impurity removal, then fill the alkali solution tank 2021 with the alkali solution for impurity removal. After that, close the liquid inlet 2023, and then open the corrosion-resistant liquid valve 2013 at the bottom of the alkali solution tank 2021. The alkali solution for impurity removal will flow into the preparation mechanism 1 to perform alkaline impurity removal on the sericite powder. After the alkaline impurity removal is completed, drain the alkali solution. Then open the corrosion-resistant liquid valve 2013 at the bottom of the acid solution tank 2022. The acid solution for impurity removal will enter the preparation mechanism 1 to perform acidic impurity removal on the sericite powder. After that, drain the acid solution and inject the acid solution into the alkali solution for neutralization.

[0058] Among them, applying the above-mentioned preparation process of modified high-whiteness sericite powder, the specific steps are as follows:

[0059] S1. Grinding and drying: First, put the sericite raw material to be ground into the conveying pipe 1031 along the conveying rotating pipe 1022. Then, close the conveying rotating pipe 1022. Next, power on and start the servo motor set 1023. The servo motor set 1023 will rotate the conveying rotating pipe 1022. While the conveying rotating pipe 1022 is rotating, it will drive the spiral grinding plate 1033 to rotate together. The sericite raw material will splash from the discharge port 1032 to the inner grinding plate 1042 along with the centrifugal force generated by the rotation. Then, the spiral grinding plate 1033 will contact the sericite raw material on the inner grinding plate 1042 and grind the sericite raw material. The sericite raw material that has not been ground into the pore size of the dense pore sieve 1043 will gradually rise along the gaps on the spiral grinding plate 1033 and, while rising, will fall again between the spiral grinding plate 1033 and the inner grinding plate 1042 due to gravity for grinding until it is ground into a powder with a particle size smaller than the pore size of the dense pore sieve 1043 and falls from the dense pore sieve 1043 onto the heat conducting plate 1062 for collection. After the impurity removal mechanism 2 finishes removing impurities from the sericite powder, power on and start the heater 1052. The heater 1052 will transfer heat to the heat conducting ring 1061 and the heat conducting plate 1062, and the heat conducting plate 1062 will remove the moisture in the sericite powder after impurity removal until the moisture is removed.

[0060] S2. Acid-base impurity removal: First, fill the acid solution tank 2022 with the acid solution for impurity removal, and fill the alkali solution tank 2021 with the alkali solution for impurity removal. Then, close the liquid inlet 2023. Next, open the corrosion-resistant liquid valve 2013 at the bottom of the alkali solution tank 2021. The alkali solution for impurity removal will flow into the preparation mechanism 1 to perform alkaline impurity removal on the sericite powder. After the alkaline impurity removal is completed, drain the alkali solution. Then, open the corrosion-resistant liquid valve 2013 at the bottom of the acid solution tank 2022. The acid solution for impurity removal will enter the preparation mechanism 1 to perform acidic impurity removal on the sericite powder. After that, drain the acid solution and inject the acid solution into the alkali solution for neutralization.

[0061] This specific embodiment is only an explanation of the present invention and is not a limitation thereof. Those skilled in the art can make modifications to this embodiment without creative contributions according to their needs after reading this specification, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

Claims

1. A preparation device for modified high-whiteness sericite powder, comprising a preparation mechanism (1) and an impurity removal mechanism (2), characterized in that: The preparation mechanism (1) includes a temporary storage component (101), a transmission component (102), a grinding component (103), a powder screening component (104), a moisture removal component (105) and a retention component (106). The transmission component (102) is bolted to the top of the temporary storage component (101). The grinding component (103) is connected to the bottom of the transmission component (102). The powder screening component (104) is bolted to the top inside the temporary storage component (101). The inside of the powder screening component (104) is in contact with the surface of the grinding component (103). The moisture removal component (105) is bolted to the bottom of the temporary storage component (101). The retention component (106) is bolted to the inside of the moisture removal component (105). The impurity removal mechanism (2) includes a conveying component (201) and a liquid storage component (202). The conveying component (201) is connected to the front side of the temporary storage component (101). The liquid storage component (202) is connected to the front side of the conveying component (201); The temporary storage component (101) includes a storage tank (1011), an exhaust pipe (1012) and an exhaust valve (1013). The exhaust pipe (1012) is connected to the top of the storage tank (1011). The exhaust valve (1013) is connected to the side of the exhaust pipe (1012) away from the storage tank (1011); The transmission component (102) includes a limit housing (1021), a conveying rotating pipe (1022) and a servo motor group (1023). The limit housing (1021) is bolted to the top of the storage tank (1011). The conveying rotating pipe (1022) is rotatably connected to the inside of the limit housing (1021). The servo motor group (1023) is bolted to the inside of the limit housing (1021); The grinding component (103) includes a conveying pipe (1031), a discharge port (1032) and a spiral grinding plate (1033). The conveying pipe (1031) is connected to the bottom of the conveying rotating pipe (1022). The discharge port (1032) is opened on the surface of the conveying pipe (1031). The spiral grinding plate (1033) is bolted to the surface of the conveying pipe (1031); The powder screening component (104) includes a limit sleeve (1041), an inner grinding plate (1042) and a fine-hole sieve mesh (1043). The limit sleeve (1041) is bolted to the top inside the storage tank (1011). The inner grinding plate (1042) is bolted to the inside of the limit sleeve (1041). The inside of the limit sleeve (1041) is in contact with the surface of the spiral grinding plate (1033). The fine-hole sieve mesh (1043) is bolted to the bottom of the limit sleeve (1041); The moisture removal component (105) includes a limit base (1051) and a heater (1052). The limit base (1051) is bolted to the bottom of the storage tank (1011). The heater (1052) is bolted to the surface of the storage tank (1011); The retention component (106) includes a heat-conducting ring (1061), a heat-conducting plate (1062) and a drainage perforated plate (1063). The heat-conducting ring (1061) is bolted to the output end of the heater (1052) on the side close to the limit base (1051). The surface of the heat-conducting ring (1061) is bolted to the inner side of the limit base (1051). The heat-conducting plate (1062) is bolted to the inner side of the heat-conducting ring (1061). The drainage perforated plate (1063) is bolted to the inner side of the heat-conducting plate (1062). The conveying component (201) includes a connecting seat (2011), a corrosion-resistant liquid delivery pipe (2012) and a corrosion-resistant liquid valve (2013). The connecting seat (2011) is bolted to the front side of the storage tank (1011). The corrosion-resistant liquid delivery pipe (2012) communicates with both sides of the front side of the connecting seat (2011). The corrosion-resistant liquid delivery pipe (2012) penetrates through the connecting seat (2011) and communicates with the storage tank (1011). The corrosion-resistant liquid valve (2013) communicates with the top of the corrosion-resistant liquid delivery pipe (2012). The liquid storage component (202) includes an alkali liquid tank (2021), an acid liquid tank (2022) and a liquid inlet (2023). The alkali liquid tank (2021) communicates with the left side of the top of the corrosion-resistant liquid valve (2013). The acid liquid tank (2022) communicates with the right side of the top of the corrosion-resistant liquid valve (2013). The liquid inlet (2023) communicates with the tops of the alkali liquid tank (2021) and the acid liquid tank (2022).

2. The preparation process of a modified high-whiteness sericite powder preparation device according to claim 1, characterized in that: it includes the following steps: S1. Grinding and drying: First, put the sericite raw material to be ground into the conveying pipe (1031) along the conveying rotating pipe (1022). Then, close the conveying rotating pipe (1022), and then energize and start the servo motor group (1023). The servo motor group (1023) will rotate the conveying rotating pipe (1022). While the conveying rotating pipe (1022) is rotating, it will drive the spiral grinding plate (1033) to rotate together. The sericite raw material will splash from the discharge port (1032) to the inner grinding plate (1042) along with the centrifugal force generated by the rotation. Then, the spiral grinding plate (1033) will contact the sericite raw material on the inner grinding plate (1042) and grind the sericite raw material. The sericite raw material that has not been ground into the aperture of the fine hole sieve (1043) will gradually rise along the gap on the spiral grinding plate (1033), and while rising, it will fall again between the spiral grinding plate (1033) and the inner grinding plate (1042) due to gravity for grinding until it is ground into a powder with a particle size smaller than the aperture of the fine hole sieve (1043), and then it will fall from the fine hole sieve (1043) onto the heat conducting plate (1062) for collection. After the impurity removal mechanism (2) completes the impurity removal of the sericite powder, energize and start the heater (1052). The heater (1052) will transfer heat to the heat conducting ring (1061) and the heat conducting plate (1062). The heat conducting plate (1062) will remove the moisture in the sericite powder after impurity removal until the moisture is removed; S2. Acid-base impurity removal: First, fill the acid liquid tank (2022) with the acid liquid for impurity removal, and then fill the alkali liquid tank (2021) with the alkali liquid for impurity removal. Then, close the liquid inlet (2023), and then open the corrosion-resistant liquid valve (2013) at the bottom of the alkali liquid tank (2021). The alkali liquid for impurity removal will flow into the preparation mechanism (1) to carry out alkaline impurity removal on the sericite powder. After the alkaline impurity removal is completed, drain the alkali liquid. Then, open the corrosion-resistant liquid valve (2013) at the bottom of the acid liquid tank (2022). The acid liquid for impurity removal will enter the preparation mechanism (1) to carry out acidic impurity removal on the sericite powder. Then, drain the acid liquid and inject the acid liquid into the alkali liquid for neutralization.

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