A barium titanate powder production and preparation equipment and preparation process

Abstract

The invention discloses a barium titanate powder production and preparation equipment and a preparation process thereof; a folding assembly is connected to the auxiliary unit; a drying assembly is connected to the inner side of the shell; when in use, the L-shaped block is driven to move upward by the first lever, so that the L-shaped block stops adhering to the side of the material block, and the bottom plate stops adhering to the bottom surface of the material block by the gravity block reciprocatingly impacting the first connecting block, so that the material block can be quickly and conveniently taken out, avoiding the problem that it is difficult to take out the agglomerated material in the prior art, and only the first lever needs to be pulled to make all the L-shaped blocks in the same column move upward, without the need to manually drive the L-shaped blocks one by one, so the convenience is high, and the weight of the gravity block is relatively large, so a large inertia can be generated during the reciprocating movement, which is beneficial to improving the impact efficiency, and at the same time, the material scraped off by the L-shaped block is collected by cooperating with the first groove, the second groove and the second storage box, so that the problem of the scraped off material blocking the resetting of the L-shaped block is avoided, and the problem of material waste is also avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of barium titanate powder production, and more specifically, to a barium titanate powder production and preparation equipment and a preparation process thereof. Background Art

[0002] In the prior art, one type of barium titanate powder is prepared by mixing, synthesizing, washing, drying and grinding, and a barium titanate precursor suspension is synthesized, and then the barium titanate precursor suspension is washed and the supernatant is removed to obtain a white precipitate material. When the existing equipment dries the white precipitate material, the white precipitate material will form a block after losing water and adhere to the container, which is difficult to remove manually and has low efficiency.

[0003] The white precipitated material has a certain thickness after accumulation. During the drying process, the heat inside the white precipitated material pile is always less than that outside, resulting in incomplete drying inside the white precipitated material pile, which seriously affects the subsequent grinding operation. Before grinding, large pieces of white precipitated material need to be cut into small pieces, and the operation process is cumbersome. Summary of the invention

[0004] The invention provides a barium titanate powder production and preparation equipment and a preparation process thereof, and aims to overcome the disadvantage that when the existing equipment dries white precipitated materials, the white precipitated materials will form blocks and adhere to the container after losing water, making it difficult to take out.

[0005] In order to achieve the above object, the technical solution adopted by the present invention is:

[0006] A barium titanate powder production and preparation equipment, comprising an outer shell, a side cover, a first support plate and a second support plate; the side cover is inserted into the front side of the outer shell; the first support plate is fixedly connected to the lower inner side of the outer shell; the second support plate is fixedly connected to the rear side of the side cover; the second support plate is in contact with the first support plate; it also comprises a square frame, a first storage box, a first round rod, an L-shaped block, a bottom plate, a first connecting block, a toggle unit, an impact unit, a heating unit, an auxiliary unit and a drying assembly; a square frame is supported between the upper sides of the first support plate and the second support plate; the first storage box is fixedly connected to the inner side of the square frame; a plurality of first round rods are fixedly connected to the upper side of the square frame; each first round rod is slidably connected to an L-shaped block; each L-shaped block is slidably connected to the first storage box; the lower side of the first storage box is slidably connected to the bottom plate; the front side of the bottom plate is fixedly connected to the first connecting block; the square frame is connected to the toggle unit; the first storage box is connected to the impact unit; the upper side of the first storage box is connected to the heating unit; the heating unit is connected to the auxiliary unit; and the inner side of the outer shell is connected to the drying assembly.

[0007] As an improvement of the above scheme, the toggle unit includes a first spring, a second round rod, a slider and a first toggle rod; a first spring is fixedly connected between each L-shaped block and the square frame; a second round rod is fixedly connected to each L-shaped block; four sliders are slidably connected to the outside of the square frame, each slider has two inclined surfaces on the upper side, and the slider cooperates with the second round rod; a first toggle rod is fixedly connected to each slider.

[0008] As an improvement of the above scheme, the impact unit includes a second connecting block, a gravity block and a second lever; the second connecting block is fixedly connected to the front side of the first storage box; the gravity block is slidably connected to the second connecting block; the gravity block is in contact with the first connecting block; and the second lever is inserted into the gravity block.

[0009] As an improvement of the above scheme, a first groove is opened at the lower left side, lower right side, lower front side and lower rear side of the first storage box; a second groove is opened at the front side of the bottom plate, and the second groove is connected to the corresponding first groove; the first groove and the second groove are both used for discharging materials.

[0010] As an improvement of the above solution, a second storage box is also included; the second storage box is detachably connected to the lower side of the first storage box.

[0011] As an improvement of the above scheme, the heating unit includes a latch, a connecting rod and a heating plate; at least four latches are fixedly connected to the upper side of the first storage box; a connecting rod is respectively provided at the upper front and the upper rear of the first storage box, and the connecting rod is detachably connected to the corresponding latch; at least six heating plates are fixedly connected between the two connecting rods.

[0012] As an improvement of the above scheme, the auxiliary unit includes a first elastic telescopic rod, a movable block and a retracting collection; a plurality of first elastic telescopic rods are fixedly connected to the inner side of each heating plate; a movable block is fixedly connected between the telescopic ends of each first elastic telescopic rod in the same column, and each movable block is slidably connected to the corresponding heating plate; and a retracting collection is connected to the movable block.

[0013] As an improvement on the above scheme, the folding assembly includes a first linkage block, a second elastic telescopic rod, a wedge block and a second linkage block; a first linkage block is fixedly connected to the lower side of each movable block; a plurality of second elastic telescopic rods are fixedly connected to the lower side of each heating plate; a wedge block is fixedly connected to the telescopic end of each second elastic telescopic rod; each wedge block cooperates with the corresponding first linkage block; a second linkage block is fixedly connected to the lower side of each wedge block; and each second linkage block is slidably connected to the corresponding heating plate.

[0014] As an improvement on the above scheme, the drying component includes a pipe, a partition, a diverter plate, a guide plate, a filter element, a third connecting block and a handle; two pipes are connected on the right side of the outer shell; a partition is fixedly connected to the inner upper side of the outer shell; a number of through holes are opened on the partition; a number of diverter plates are fixedly connected to the lower side of the partition; a guide plate is fixedly connected to the lower left part of the partition; the guide plate is fixed to the outer shell; two third connecting blocks are plugged into the left side of the outer shell; the third connecting block located in the front is in contact with the side cover; a filter element is fixedly connected between the two third connecting blocks; the filter element is in an arc shape, and is used to intercept and collect materials; the outer shell, the first support plate, the second support plate and the guide plate are all in contact with the filter element; the front side of the third connecting block located in the front is detachably connected to a handle.

[0015] A process for producing barium titanate powder comprises the following steps:

[0016] S1: Barium precursor: weigh a certain amount of barium source, add it into 20 mL of deionized water, stir and dissolve it at 80°C to obtain a barium salt solution;

[0017] S2: Titanium precursor: Weigh a certain amount of urea and add it to a mixed solution of deionized water and ethanol in a ratio of 2:1. Stir magnetically until all solids are dissolved. Add concentrated hydrochloric acid or ammonia water to adjust the pH of the above solution. Add 2-4 mL of the initial titanium source solution dropwise under ice-water bath and vigorous stirring. After continuous stirring for 3-5 minutes, place in a 160-180°C oven for hydrothermal reaction for 10-12 hours. Wash the reaction product with anhydrous ethanol and deionized water for multiple times, place in a 60-80°C oven to dry for ≥12 hours, and grind the dried product to obtain titanium dioxide powder;

[0018] S3: Mixing: Weigh a certain amount of titanium dioxide precursor according to a molar ratio of barium to titanium of not less than 2 and transfer it to the barium salt solution, stir evenly, add 20 mL of ethanol and 10 mL of ammonia water, control the solution pH ≥ 13, and obtain a barium titanate precursor suspension;

[0019] S4: Synthesis: Add the barium titanate precursor suspension into a 50 mL hydrothermal reactor, control the solution filling degree to 70%, perform hydrothermal reaction in an oven at 220-260°C for 12-30 hours, cool to room temperature with the furnace, open the reactor, and obtain a barium titanate suspension;

[0020] S5: Washing: The hydrothermally synthesized barium titanate suspension was centrifuged and washed with acetic acid and deionized water.

[0021] Wash several times, discard the supernatant, and leave the white precipitate at the bottom;

[0022] S6: Drying, placing the white precipitate into a barium titanate powder production and preparation device for drying to obtain a material block;

[0023] S7: Grinding: putting the material block into a grinder and grinding it into powder to obtain barium titanate powder.

[0024] Beneficial effect: The present invention adopts the above technical solution, drives the L-shaped block to move upward by the first lever, so that the L-shaped block stops bonding with the side of the material block, and reciprocates the impact of the gravity block on the first connecting block to stop the bottom plate from bonding with the bottom surface of the material block, so that the material block can be quickly and conveniently taken out, avoiding the problem of difficulty in taking out agglomerated materials in the prior art, and only needs to pull the first lever to make all the L-shaped blocks in the same row move upward, without the need to manually drive the L-shaped blocks one by one, which is highly convenient, and the weight of the gravity block is relatively large, which can generate a large inertia during the reciprocating movement, which is conducive to improving the impact efficiency, and at the same time, the materials scraped off by the L-shaped block are collected by cooperating with the first groove, the second groove and the second storage box, avoiding the problem of the scraped materials blocking the L-shaped block from resetting, and also avoiding the problem of material waste;

[0025] During the drying process, the material pile is divided into several parts by the heating plate and the inside is heated, so that the material is dried evenly, and the dried material blocks are taken out in the form of several small blocks, which is conducive to the subsequent grinding operation and greatly improves the efficiency. At the same time, the material pile is squeezed by the movable block, and the movable block is retracted to the inner side of the heating plate through the cooperation of the second linkage block, so that the material pile is close to the heating plate. A plurality of grooves are formed to dissipate water vapor and improve the drying efficiency;

[0026] In addition, the filter element is used to intercept the fallen materials to prevent them from entering the external hot air circulation system and causing damage to it. The arc-shaped filter element is also used to collect the intercepted materials to facilitate manual removal. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The contents shown in the attached drawings and the symbols in the drawings are briefly described as follows:

[0028] Figure 1 A first structural schematic diagram of the barium titanate powder production and preparation equipment of the present invention is shown;

[0029] Figure 2 A second structural schematic diagram of the barium titanate powder production and preparation equipment of the present invention is shown;

[0030] Figure 3 A schematic diagram of a first partial structure of the barium titanate powder production and preparation equipment of the present invention is shown;

[0031] Figure 4 A second partial structural schematic diagram of the barium titanate powder production and preparation equipment of the present invention is shown;

[0032] Figure 5 A third partial structural schematic diagram of the barium titanate powder production and preparation equipment of the present invention is shown;

[0033] Figure 6 The schematic diagram of the structure of the impact unit of the present invention is shown;

[0034] Figure 7 A fourth partial structural schematic diagram of the barium titanate powder production and preparation equipment of the present invention is shown;

[0035] Figure 8 A schematic diagram of the structure of the heating unit of the present invention is shown;

[0036] Fig. 9 A schematic diagram showing the structure of the auxiliary unit and the folding assembly combination of the present invention is shown;

[0037] Fig.10 A front view of the drying assembly of the present invention is shown;

[0038] Fig.11 A schematic diagram of a first partial structure of a drying assembly of the present invention is shown;

[0039] Fig.12 A second partial structural schematic diagram of the drying component of the present invention is shown.

[0040] In the reference numerals:

[0041] 1-housing, 2-side cover, 3-first support plate, 4-second support plate, 201-square frame, 202-first storage box, 203-first round rod, 204-L-shaped block, 205-bottom plate, 206-first connecting block, 207-first spring, 208-second round rod, 209-slider, 2010-first lever, 2011-second connecting block, 2012-gravity block, 2013-second lever, 2014-second storage box, 2015 - latch, 2016-connecting rod, 2017-heating plate, 2018-first elastic telescopic rod, 2019-movable block, 2020-first linkage block, 2021-second elastic telescopic rod, 2022-wedge block, 2023-second linkage block, 301-pipeline, 302-partition, 303-diverter plate, 304-guide plate, 305-filter element, 306-third connecting block, 307-handle, 91-first groove, 92-second groove. DETAILED DESCRIPTION

[0042] The present invention will now be described more fully below with reference to the accompanying drawings, in which currently preferred embodiments of the present invention are shown. However, the present invention may be implemented in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided for thoroughness and completeness, and these embodiments fully convey the scope of the present invention to the skilled person.

[0043] Implementation 1

[0044] A barium titanate powder production and preparation equipment, such as Figure 1-6 As shown, it includes a shell 1, a side cover 2, a first support plate 3 and a second support plate 4; the side cover 2 is inserted into the front side of the shell 1; the first support plate 3 is bolted to the lower side of the shell 1; the second support plate 4 is bolted to the rear side of the side cover 2; the second support plate 4 is in contact with the first support plate 3; it also includes a square frame 201, a first storage box 202, a first round rod 203, an L-shaped block 204, a bottom plate 205, a first connecting block 206, a toggle unit, an impact unit, a heating unit, an auxiliary unit and a drying assembly; a square frame 201 is supported between the upper sides of the first support plate 3 and the second support plate 4; the first storage box 202 is welded to the inner side of the square frame 201; a plurality of first round rods 203 are welded to the upper side of the square frame 201; each first round rod 203 is slidably connected to an L-shaped block 204, and the L-shaped block 204 is set to a wear-resistant and smooth material, with The movable L-shaped block 204 replaces the side wall of the first storage box 202 to contact the material block. The contact area between each L-shaped block 204 and the material block is relatively small. It only needs to push the L-shaped blocks 204 upward one by one to easily separate from the side of the material block; each L-shaped block 204 is slidably connected to the first storage box 202; the lower side of the first storage box 202 is slidably connected to a bottom plate 205; a first connecting block 206 is welded to the front side of the bottom plate 205, and the movable bottom plate 205 replaces the bottom side of the first storage box 202 to contact the material block. It only needs to knock the first connecting block 206 to separate the bottom plate 205 from the bottom surface of the material block; a toggle unit is connected to the square frame 201; a collision unit is connected to the first storage box 202; a heating unit is connected to the upper side of the first storage box 202; an auxiliary unit is connected to the heating unit; and a drying component is connected to the inner side of the outer shell 1.

[0045] The toggle unit includes a first spring 207, a second round rod 208, a slider 209 and a first toggle rod 2010; each first round rod 203 is sleeved with a first spring 207, one end of the first spring 207 is welded to the square frame 201, and the other end of the first spring 207 is welded to the corresponding L-shaped block 204; each L-shaped block 204 is welded with a second round rod 208; four sliders 209 are slidably connected to the outer side of the square frame 201, and each slider 209 has two symmetrical inclined surfaces on the upper side, and the slider 209 cooperates with the second round rod 208; each slider 209 is welded with a first toggle rod 2010, and the first toggle rod 2010 can be manually pulled to make the sliders 209 cooperate with several second round rods 208 one by one to quickly lift the L-shaped blocks 204 in the same row.

[0046] The impact unit includes a second connecting block 2011, a gravity block 2012 and a second lever 2013; the second connecting block 2011 is bolted to the front side of the first storage box 202; the gravity block 2012 is slidably connected to the second connecting block 2011, and the gravity block 2012 is set to a high-density alloy material; the gravity block 2012 is in contact with the first connecting block 206; the second lever 2013 is inserted at the front end of the gravity block 2012, and the gravity block 2012 is driven by the second lever 2013 to move horizontally back and forth to impact the first connecting block 206, and the inertia of the gravity block 2012 is used to improve the impact efficiency.

[0047] During the preparation work, the side cover 2 is manually moved away from the outer shell 1 and the first support plate 3 by the side cover 2, and then the square frame 201 and the parts thereon are manually taken out, and then the white precipitated material is poured onto the upper side of the bottom plate 205 and flattened, and then the square frame 201 and the parts thereon are put back in place, and then the side cover 2 is installed back in place, and the second support plate 4 contacts the first support plate 3 again, and then the drying component delivers hot air to the inner side of the outer shell 1 to dry the white precipitated material to obtain a material block, and then the square frame 201 and the parts thereon are manually taken out again, and the first lever 2010 is pulled, and the first lever 2010 drives The slider 209 moves, so that the inclined surface of the slider 209 contacts the second round rod 208. The slider 209 continues to slide and pushes the second round rod 208 to move upward. The second round rod 208 drives the L-shaped block 204 to slide upward on the first round rod 203 and stretches the first spring 207, so that the L-shaped block 204 stops sticking to the material block. After the slider 209 passes the second round rod 208, the first spring 207 rebounds and drives the L-shaped block 204 to move back to its original position. The slider 209 continues to slide, linking the movement of other second round rods 208, so that the remaining L-shaped blocks 204 gradually stop sticking to the side of the material block, and then drives the second round rods 208 to move upward. The rod 2013 reciprocates, and the second lever 2013 drives the gravity block 2012 to reciprocate, so that the gravity block 2012 reciprocates and hits the first connecting block 206, and the first connecting block 206 drives the bottom plate 205 to move, so that the bottom plate 205 and the bottom surface of the material block stop bonding, and the weight of the gravity block 2012 is relatively large, and a large inertia can be generated during the reciprocating movement, which is conducive to improving the impact efficiency. At this time, only four corners of the material block are bonded to the first storage box 202, and the bonding area is small. Then, the first storage box 202 is turned over 180 degrees, and the material block is shaken out, and the material block is taken out. When in use, through the first The lever 2010 drives the L-shaped block 204 to move upward, so that the L-shaped block 204 stops sticking to the side of the material block, and the gravity block 2012 reciprocates to hit the first connecting block 206, so that the bottom plate 205 stops sticking to the bottom surface of the material block, so that the material block can be quickly and conveniently taken out, avoiding the problem of difficulty in taking out agglomerated materials in the prior art. Moreover, only the first lever 2010 needs to be pulled to make all the L-shaped blocks 204 in the same column move upward, and there is no need to manually drive the L-shaped blocks 204 one by one, which is highly convenient. In addition, the weight of the gravity block 2012 is relatively large, and a large inertia can be generated during the reciprocating movement, which is conducive to improving the impact efficiency.

[0048] Implementation 2

[0049] Based on Implementation Plan 1, Figure 1-2 and Figure 7As shown, a first groove 91 is provided at the lower left side, lower right side, lower front side and lower rear side of the first storage box 202; a second groove 92 is provided at the front side of the bottom plate 205, and the second groove 92 is communicated with the corresponding first groove 91; the first groove 91 and the second groove 92 are both used for discharging materials, and after the L-shaped block 204 is lifted up, the lower side of the material block stops contacting the L-shaped block 204, so that part of the material on the material block falls off under the L-shaped block 204, and then is discharged through the first groove 91 and the second groove 92.

[0050] A second storage box 2014 is also included; the second storage box 2014 is plugged into the lower side of the first storage box 202 , and the materials discharged through the first groove 91 and the second groove 92 fall into the second storage box 2014 .

[0051] After the L-shaped block 204 moves upward, the lower side of the material block stops contacting the L-shaped block 204. When the L-shaped block 204 moves back to its original position again, part of the material on the surface of the material block will be scraped off, and the scraped material will fall under the L-shaped block 204, blocking the L-shaped block 204 from resetting. Therefore, a first groove 91 is opened around the first storage box 202 and a second groove 92 is opened on the front side of the bottom plate 205, so that the material can fall into the second storage box 2014 through the first groove 91 and the second groove 92 for collection. After that, the second storage box 2014 can be taken out, and the material therein can be taken out and reused. When in use, the material scraped off by the L-shaped block 204 is collected by cooperating with the first groove 91, the second groove 92 and the second storage box 2014, thereby avoiding the problem of the scraped material blocking the resetting of the L-shaped block 204 and also avoiding the problem of material waste.

[0052] Implementation 3

[0053] Based on Implementation Plan 2, Figure 1-2 and Figure 8-9 As shown, the heating unit includes a latch 2015, a connecting rod 2016 and a heating plate 2017; four latches 2015 are fixedly connected around the upper side of the first storage box 202; a connecting rod 2016 is respectively provided at the upper front and upper rear of the first storage box 202, and the connecting rod 2016 is plugged into the corresponding latch 2015; eight heating plates 2017 are bolted between two connecting rods 2016, and the eight heating plates 2017 divide the material into nine parts, which is conducive to uniform drying and makes the subsequent processing of the material blocks more convenient.

[0054] The auxiliary unit includes a first elastic telescopic rod 2018, a movable block 2019 and a retracting assembly; a plurality of first elastic telescopic rods 2018 are fixedly connected to the inner side of each heating plate 2017; a movable block 2019 is fixedly connected between the telescopic ends of each first elastic telescopic rod 2018 in the same column, and each movable block 2019 is slidably connected to the corresponding heating plate 2017, and a groove is squeezed out in the material pile through the movable block 2019 to drain water vapor; a retracting assembly is connected to the movable block.

[0055] The folding assembly includes a first linkage block 2020, a second elastic telescopic rod 2021, a wedge block 2022 and a second linkage block 2023; a first linkage block 2020 is welded to the lower side of each movable block 2019; a plurality of second elastic telescopic rods 2021 are fixed to the lower side of each heating plate 2017; a wedge block 2022 is fixed to the telescopic end of each second elastic telescopic rod 2021; each wedge block 2022 is connected to the corresponding first linkage block 2020 Matching; a second linkage block 2023 is welded on the lower side of each wedge block 2022, and the second linkage block 2023 is set to an alloy material. After the heating plate 2017 is inserted downward into the material pile, the second linkage block 2023 is blocked and limited by the bottom plate 205, so that the wedge block 2022 naturally moves upward relative to the first linkage block 2020, and the movable block 2019 is retracted, leaving a groove in the material pile; each second linkage block 2023 is slidably connected to the corresponding heating plate 2017.

[0056] Before pouring the material, manually pull the connecting rod 2016 upward and away from the latch 2015, so as to remove the connecting rod 2016 and the parts thereon, and then pour the material to the upper side of the bottom plate 205 and flatten it, and then install the connecting rod 2016 and the parts thereon back to their original positions, so that the heating plate 2017 is inserted into the material pile, and the material pile is divided into several portions. During the drying process, the heating plate 2017 starts to heat up and heats the inside of the material pile, so that the material is evenly dried. When in use, the material pile is divided into several portions by the heating plate 2017 and the inside is heated, so that the material is evenly dried, and the dried material blocks are taken out in the form of several small blocks, which is conducive to the subsequent grinding operation and greatly improves the efficiency.

[0057] After the heating plate 2017 is squeezed into the material pile, the materials around it will be pressed tightly, reducing the efficiency of water vapor dissipation, and incomplete drying is likely to occur. Therefore, the material pile is squeezed out of the groove through the movable block 2019, and the heating plate 2017 drives the parts thereon to move downward, so that the second linkage block 2023 moves downward to contact the bottom plate 205, and the bottom plate 205 blocks and limits the second linkage block 2023. The heating plate 2017 continues to move downward, so that the second linkage block 2023 moves upward relative to the heating plate 2017. The second linkage block 2023 drives the wedge block 2022 to move upward and stretch the second elastic telescopic rod 2021. The wedge block 2022 moves upward to push the first The linkage block 2020 moves toward the middle of the heating plate 2017, and the first linkage block 2020 drives the movable block 2019 to move toward the middle of the heating plate 2017, and compresses the first elastic telescopic rod 2018, so that the movable block 2019 is retracted to the inner side of the heating plate 2017. At this time, a plurality of grooves are formed near the heating plate 2017 at the position of the material pile for dissipating water vapor and improving the drying efficiency. When in use, the material pile is squeezed by the movable block 2019, and the second linkage block 2023 cooperates with it to retract the movable block 2019 to the inner side of the heating plate 2017, so that a plurality of grooves are formed near the heating plate 2017 at the position of the material pile for dissipating water vapor and improving the drying efficiency.

[0058] Implementation 4

[0059] Based on Implementation Plan 3, Figure 1-2 and Figure 10-12 As shown, the drying assembly includes a pipe 301, a partition 302, a diverter plate 303, a guide plate 304, a filter element 305, a third connecting block 306 and a handle 307; two pipes 301 are connected and fixedly connected on the right side of the shell 1; a partition 302 is bolted to the upper side of the shell 1; eight through holes are opened on the partition 302; eight diverter plates 303 are welded on the lower side of the partition 302, and the hot air is evenly diagonally diverted to the left through the diverter plates 303 to evenly dry the material pile; a guide plate 304 is bolted to the left part of the lower side of the partition 302, and the hot air is smoothly deflected through the guide plate 304 so that the hot air flows to the lower part of the material pile Side heating makes drying more uniform; the guide plate 304 is bolted to the shell 1; two third connecting blocks 306 are inserted on the left side of the shell 1; the third connecting block 306 located in the front is in contact with the side cover 2; a filter member 305 is fixedly connected between the two third connecting blocks 306, and the filter member 305 can be a nylon mesh or a metal mesh; the filter member 305 is arc-shaped and is used to intercept and collect materials; the shell 1, the first support plate 3, the second support plate 4 and the guide plate 304 are all in contact with the filter member 305; a handle 307 is screwed on the front side of the third connecting block 306 located in the front.

[0060] A process for producing barium titanate powder comprises the following steps:

[0061] S1: Barium precursor: weigh a certain amount of barium source, add it into 20 mL of deionized water, stir and dissolve it at 80°C to obtain a barium salt solution;

[0062] S2: Titanium precursor: Weigh a certain amount of urea and add it to a mixed solution of deionized water and ethanol in a ratio of 2:1. Stir magnetically until all solids are dissolved. Add concentrated hydrochloric acid or ammonia water to adjust the pH of the above solution. Add 2-4 mL of the initial titanium source solution dropwise under ice-water bath and vigorous stirring. After continuous stirring for 3-5 minutes, place in a 160-180°C oven for hydrothermal reaction for 10-12 hours. Wash the reaction product with anhydrous ethanol and deionized water for multiple times, place in a 60-80°C oven to dry for ≥12 hours, and grind the dried product to obtain titanium dioxide powder;

[0063] S3: Mixing: Weigh a certain amount of titanium dioxide precursor according to a molar ratio of barium to titanium of not less than 2 and transfer it to the barium salt solution, stir evenly, add 20 mL of ethanol and 10 mL of ammonia water, control the solution pH ≥ 13, and obtain a barium titanate precursor suspension;

[0064] S4: Synthesis: Add the barium titanate precursor suspension into a 50 mL hydrothermal reactor, control the solution filling degree to 70%, perform hydrothermal reaction in an oven at 220-260°C for 12-30 hours, cool to room temperature with the furnace, open the reactor, and obtain a barium titanate suspension;

[0065] S5: Washing: The hydrothermally synthesized barium titanate suspension was centrifuged and washed with acetic acid and deionized water.

[0066] Wash several times, discard the supernatant, and leave the white precipitate at the bottom;

[0067] S6: Drying, placing the white precipitate into a barium titanate powder production and preparation device for drying to obtain a material block;

[0068] S7: Grinding: putting the material block into a grinder and grinding it into powder to obtain barium titanate powder.

[0069] First, manually connect the output end of the external hot air circulation system to the pipe 301 located above, and connect the input end of the external hot air circulation system to the pipe 301 located below. The external hot air circulation system transports hot air to the pipe 301 located above. The hot air flows to the upper cavity of the partition 302, and then flows toward each other from the grooves on the partition 302. The diverter plate 303 guides the hot air to make it flow obliquely to the left to dry the material. Then, the hot air is guided to the right through the guide plate 304, so that the hot air flows to the right in the cavity on the lower side of the outer shell 1, and then flows back to the external hot air circulation system through the pipe 301 located below. In this process, the hot air is also used to heat the parts below the material, indirectly drying the lower side of the material to improve the drying efficiency.

[0070] During the drying process, the hot air will blow out a small amount of material whose surface has been dried and fallen off. At this time, the fallen material is intercepted by the filter element 305 to prevent it from entering the external hot air circulation system and causing damage to it. After that, the handle 307 is manually rotated. From the front to the back, the handle 307 rotates clockwise, and the handle 307 drives the third connecting block 306 to rotate, and the third connecting block 306 drives the filter element 305 to rotate, so that the intercepted material is received on the inner side of the filter element 305. Then the handle 307 is pulled forward to take out the filter element 305, and then the intercepted material is taken out. When in use, the fallen material is intercepted by the filter element 305 to prevent it from entering the external hot air circulation system and causing damage to it. The arc-shaped filter element 305 is also used to collect the intercepted material, which is convenient for manual removal.

[0071] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A barium titanate powder production and preparation device, comprising a housing (1), a side cover (2), a first support plate (3) and a second support plate (4); the front side of the housing (1) is plugged with the side cover (2); the first support plate (3) is fixedly connected to the lower inner side of the housing (1); the rear side of the side cover (2) is fixedly connected to the second support plate (4); the second support plate (4) is in contact with the first support plate (3); characterized in that: The invention also comprises a square frame (201), a first storage box (202), a first round rod (203), an L-shaped block (204), a bottom plate (205), a first connecting block (206), a toggle unit, an impact unit, a heating unit, an auxiliary unit and a drying assembly; the square frame (201) is supported between the upper sides of the first support plate (3) and the second support plate (4); the first storage box (202) is fixedly connected to the inner side of the square frame (201); a plurality of first round rods (203) are fixedly connected to the upper side of the square frame (201); each first round rod (203) 203) are slidably connected to an L-shaped block (204); each L-shaped block (204) is slidably connected to the first storage box (202); a bottom plate (205) is slidably connected to the lower side of the first storage box (202); a first connecting block (206) is fixedly connected to the front side of the bottom plate (205); a toggle unit is connected to the square frame (201); an impact unit is connected to the first storage box (202); a heating unit is connected to the upper side of the first storage box (202); an auxiliary unit is connected to the heating unit; and a drying component is connected to the inner side of the housing (1); The toggle unit comprises a first spring (207), a second round rod (208), a slider (209) and a first toggle rod (2010); a first spring (207) is fixedly connected between each L-shaped block (204) and the square frame (201); a second round rod (208) is fixedly connected to each L-shaped block (204); four sliders (209) are slidably connected to the outer side of the square frame (201); two inclined surfaces are provided on the upper side of each slider (209); the slider (209) matches the second round rod (208); and a first toggle rod (2010) is fixedly connected to each slider (209); The impact unit comprises a second connection block (2011), a gravity block (2012) and a second lever (2013); the second connection block (2011) is fixedly connected to the front side of the first storage box (202); the gravity block (2012) is slidably connected to the second connection block (2011); the gravity block (2012) is in contact with the first connection block (206); A second lever (2013) is plugged into the gravity block (2012); The heating unit comprises a latch (2015), a connecting rod (2016) and a heating plate (2017); at least four latches (2015) are fixedly connected to the upper side of the first storage box (202); a connecting rod (2016) is respectively provided at the upper front part and the upper rear part of the first storage box (202), and the connecting rod (2016) is detachably connected to the corresponding latch (2015); at least six heating plates (2017) are fixedly connected between the two connecting rods (2016); The auxiliary unit comprises a first elastic telescopic rod (2018), a movable block (2019) and a retracting assembly; a plurality of first elastic telescopic rods (2018) are fixedly connected to the inner side of each heating plate (2017); a movable block (2019) is fixedly connected between the telescopic ends of each first elastic telescopic rod (2018) in the same row, and each movable block (2019) is slidably connected to the corresponding heating plate (2017); and a retracting assembly is connected to the movable block (2019); The folding assembly comprises a first linkage block (2020), a second elastic telescopic rod (2021), a wedge block (2022) and a second linkage block (2023); a first linkage block (2020) is fixedly connected to the lower side of each movable block (2019); a plurality of second elastic telescopic rods (2021) are fixedly connected to the lower side of each heating plate (2017); a wedge block (2022) is fixedly connected to the telescopic end of each second elastic telescopic rod (2021); each wedge block (2022) is matched with the corresponding first linkage block (2020); a second linkage block (2023) is fixedly connected to the lower side of each wedge block (2022); each second linkage block (2023) is slidably connected to the corresponding heating plate (2017); The drying component comprises a pipe (301), a partition (302), a flow divider (303), a flow guide plate (304), a filter element (305), a third connecting block (306) and a handle (307); two pipes (301) are connected to the right side of the shell (1); the two pipes (301) are connected to the output end and the input end of the external hot air circulation system for circulating hot air; a partition (302) is fixedly connected to the upper inner side of the shell (1); a plurality of through holes are formed on the partition (302); a plurality of flow dividers (303) are fixedly connected to the lower side of the partition (302); a flow guide plate (304) is fixedly connected to the left lower side of the partition (302); and the flow guide plate (304) is fixedly connected to the shell (1); Two third connection blocks (306) are plugged into the left side of the housing (1); the third connection block (306) located in the front is in contact with the side cover (2); a filter element (305) is fixedly connected between the two third connection blocks (306); the filter element (305) is in an arc shape and is used to intercept and collect materials; the housing (1), the first support plate (3), the second support plate (4) and the guide plate (304) are all in contact with the filter element (305); and a handle (307) is detachably connected to the front side of the third connection block (306) located in the front.

2. The barium titanate powder production and preparation equipment according to claim 1, characterized in that: A first groove (91) is provided at the lower left side, lower right side, lower front side and lower rear side of the first storage box (202); a second groove (92) is provided at the front side of the bottom plate (205), and the second groove (92) is connected to the corresponding first groove (91); the first groove (91) and the second groove (92) are both used for discharging materials.

3. The barium titanate powder production and preparation equipment according to claim 1, characterized in that: It also includes a second storage box (2014); the second storage box (2014) is detachably connected to the lower side of the first storage box (202).

4. A process for producing barium titanate powder, characterized in that: The process uses the barium titanate powder production and preparation equipment described in any one of claims 1 to 3, and includes the following working steps: S1: Barium precursor: weigh a certain amount of barium source, add it into 20 mL of deionized water, stir and dissolve it at 80°C to obtain a barium salt solution; S2: Titanium precursor: Weigh a certain amount of urea and add it to a mixed solution of deionized water and ethanol in a ratio of 2:

1. Stir magnetically until all solids are dissolved. Add concentrated hydrochloric acid or ammonia water to adjust the pH of the above solution. Add 2-4 mL of the initial titanium source solution dropwise under ice-water bath and vigorous stirring. After continuous stirring for 3-5 minutes, place in a 160-180°C oven for hydrothermal reaction for 10-12 hours. Wash the reaction product with anhydrous ethanol and deionized water for multiple times, place in a 60-80°C oven to dry for ≥12 hours, and grind the dried product to obtain titanium dioxide powder; S3: Mixing: Weigh a certain amount of titanium dioxide precursor according to a molar ratio of barium to titanium of not less than 2 and transfer it to the barium salt solution, stir evenly, add 20 mL of ethanol and 10 mL of ammonia water, control the solution pH ≥ 13, and obtain a barium titanate precursor suspension; S4: Synthesis: Add the barium titanate precursor suspension into a 50 mL hydrothermal reactor, control the solution filling degree to 70%, perform hydrothermal reaction in an oven at 220-260°C for 12-30 hours, cool to room temperature with the furnace, open the reactor, and obtain a barium titanate suspension; S5: washing: centrifugally washing the hydrothermally synthesized barium titanate suspension, washing it multiple times with acetic acid and deionized water, pouring off the supernatant and leaving the white precipitate at the bottom; S6: Drying, placing the white precipitate into a barium titanate powder production and preparation device for drying to obtain a material block; S7: Grinding: putting the material block into a grinder and grinding it into powder to obtain barium titanate powder.

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