Micro-chemical continuous synthesis equipment and preparation method of nano barium sulfate / barium carbonate

Abstract

The invention discloses micro-chemical continuous synthesis equipment and preparation method of nano barium sulfate / barium carbonate, and the micro-chemical continuous synthesis equipment comprises a support frame for bearing the whole equipment; the outer shell is fixed on the support frame, and a plurality of annularly distributed arc-shaped openings are formed in the lower part of the outer shell; the top of the inner shell is fixedly connected with the top of the outer shell, and the lower portion of the inner shell is provided with an adjusting arc opening corresponding to the arc opening. The rotary adjusting assembly is rotationally arranged between the outer shell and the inner shell; the continuous phase conveying device is fixedly arranged in the center of the upper part of the inner shell; the dispersed phase conveying device is fixed in the center of the lower part of the inner shell; the adjusting conveying device corresponds to the arc-shaped opening in the outer shell and is fixed on the outer side of the dispersed phase conveying device; and the collecting assembly is fixed at the bottom of the dispersed phase conveying device and corresponds to the inner shell and the outer shell. According to the invention, controllable growth of crystal grains can be realized, the product size is uniform, the nanocrystallization degree is high, and supporting facilities such as front-end pretreatment and rear-end filtering and drying of a traditional process can be coupled.

Description

Technical Field

[0001] The invention relates to the technical field of continuous flow micro-chemical engineering, and more specifically to a micro-chemical continuous synthesis device and a preparation method of nano barium sulfate / barium carbonate. Background Art

[0002] As an important functional powder, barium sulfate / barium carbonate can be widely used in the fields of coatings, papermaking, plastics, rubber, cables, ceramics, waterproof materials, cosmetics, textile lubricants, etc., and has broad market application prospects. When preparing nano barium sulfate, barium sulfide solution is usually introduced from the continuous phase feed port, and sodium sulfate solution is introduced from the dispersed phase feed port for mixed reaction; when preparing nano barium carbonate, barium sulfide or barium hydroxide or barium chloride solution is usually introduced from the continuous phase feed port, and carbon dioxide gas is introduced from the dispersed phase feed port for mixed reaction, and the continuous production of nano barium sulfate / barium carbonate is achieved by controlling the process conditions such as reactant concentration, feed rate, and reaction temperature. However, in the preparation process of nano barium sulfate / barium carbonate, it is difficult to achieve controlled grain growth in the existing equipment, the target product size is uniform and the nanometer degree is low, the production efficiency is general, and after the reaction is completed, subsequent filtration, drying and other processes cannot be directly carried out, and transfer post-processing is required. Therefore, it is necessary to provide a micro-chemical continuous synthesis device and preparation method of nano barium sulfate / barium carbonate to solve the problems raised in the above background technology. Summary of the invention

[0003] To achieve the above object, the present invention provides the following technical solution: a micro-chemical continuous synthesis device and preparation method of nano barium sulfate / barium carbonate, comprising:

[0004] The support frame carries the entire equipment and connects the front-end pretreatment and back-end filtering, drying and other supporting facilities;

[0005] The outer shell is fixed on the support frame, and the lower part of the outer shell is provided with a plurality of circularly distributed arc openings;

[0006] The inner shell is coaxially arranged with the outer shell and is located on the inner side of the outer shell. The top of the inner shell is fixedly connected with the top of the outer shell, and the lower part of the inner shell is provided with a plurality of annularly distributed adjustment arc openings, and the adjustment arc openings correspond to the arc-shaped openings.

[0007] A rotation adjustment component is rotatably arranged between the outer shell and the inner shell and is located above the arc opening and the adjustment arc opening;

[0008] The continuous phase conveying device is arranged at the upper center of the inner shell and is fixedly connected to the inner shell;

[0009] The dispersed phase conveying device is fixed at the lower center of the inner shell, and the bottom is fixedly connected to the inner shell;

[0010] A plurality of regulating and conveying devices are provided in an annular distribution, corresponding to the arc-shaped openings on the outer shell, and the regulating and conveying devices are fixed on the outside of the dispersed phase conveying device;

[0011] The collecting assembly is fixed at the bottom of the dispersed phase conveying device and corresponds to the gap between the inner shell and the outer shell.

[0012] Further, as a preference, the rotation adjustment component comprises:

[0013] An adjusting ring is rotatably disposed between the inner shell and the outer shell and is located above the arc opening and the adjusting arc opening;

[0014] A plurality of through holes are provided in an annular distribution, are arranged on the adjustment ring, and are arranged corresponding to the adjustment conveying device;

[0015] The driving motor is fixed between the inner shell and the outer shell, and is connected to the adjusting ring through the tooth segment. That is to say, driven by the driving motor, the adjusting ring is driven by the tooth segment to rotate between the inner shell and the outer shell to adjust the position of the through hole. When the through hole is located between the continuous phase conveying device and the regulating conveying device, when the continuous phase material flows through the through hole, the dispersed phase material is evenly dispersed in the continuous phase material through the regulating conveying device, and a chemical reaction is carried out to generate grains; when the through hole is misaligned with the position between the continuous phase conveying device and the regulating conveying device, that is, the adjusting ring separates the continuous phase conveying device and the regulating conveying device, the equipment stops working at this time, and the regulating conveying device can be adjusted to control the size of the generated grains.

[0016] Further, as a preference, the continuous phase conveying device comprises:

[0017] A central flow divider is coaxially arranged with the inner shell and is arranged at the upper center of the inner shell;

[0018] A plurality of flow dividing pipes are provided in an annular distribution, corresponding to the through holes on the adjusting ring, and the two ends of the flow dividing pipes are respectively connected to the central flow dividing device and the inner shell;

[0019] The limit plates are provided in multiple groups in an annular distribution, and each group is provided with two symmetrically distributed plates, which are respectively arranged on both sides of the diversion pipe, and are located between the inner shell and the outer shell, and above the adjustment ring;

[0020] The continuous phase conveying channel is arranged between each set of limiting plates, the outer shell, the inner shell and the adjusting ring. That is to say, after the continuous phase material is injected into the central diverter, the material flows along multiple diversion pipes, and is transported through multiple pipes to carry out multiple batches of simultaneous reactions, which effectively improves the reaction efficiency. The continuous phase material enters the continuous phase conveying channel between the limiting plates through the diversion pipe, and each continuous phase conveying channel corresponds to the adjusting conveying device, which fully ensures that the dispersed phase material is evenly dispersed in the continuous phase material, while effectively reducing the consumption of raw materials and reducing waste.

[0021] Further, as a preference, the dispersed phase conveying device comprises:

[0022] The bearing surface, the outer ring is fixedly connected to the bottom of the inner shell;

[0023] The rotating motor is fixed at the top center of the load-bearing surface;

[0024] A flow distributor is arranged at the top center of the rotating motor and is fixedly connected to the rotating motor;

[0025] A delivery port is fixed at the top center of the flow distributor;

[0026] The telescopic conveying channels are provided with a plurality of annular distributions and are fixed around the lower part of the flow distributor. The telescopic conveying channels correspond to the regulating arc openings on the inner shell and are slidably connected with the regulating arc openings. That is to say, driven by the rotating motor, the flow distributor drives the telescopic conveying channel to rotate on the adjustment arc opening on the inner shell body, and then drives the adjustment conveying device to rotate between the inner shell body and the outer shell body, and adjusts the position between the adjustment conveying device and the continuous phase conveying channel. When it is necessary to change the grain size and adjust the adjustment conveying device, the rotating motor drives the flow distributor to rotate, and then drives the adjustment conveying device to rotate to the position corresponding to the arc opening on the outer shell body through the telescopic conveying channel. At this time, the adjusting ring rotates to close the continuous phase conveying channel, and then drives the adjustment conveying device to extend for adjustment under the elongation of the telescopic conveying channel. After the adjustment is completed, it is retracted and reset under the contraction of the telescopic conveying channel, and then the rotating motor rotates, driving the adjustment conveying device to move to a position opposite to the continuous phase conveying channel through the telescopic conveying channel, and then the adjusting ring rotates so that the through hole is between the adjustment conveying device and the continuous phase conveying channel, connecting the adjustment conveying device and the continuous phase conveying channel, so that the dispersed phase material is fully dispersed in the continuous phase material to react and produce grains.

[0027] Further, as a preference, the regulating and conveying device comprises:

[0028] A connecting ring body is fixedly connected to one end of the telescopic conveying channel away from the flow distributor, and the connecting ring body and the telescopic conveying channel at the connection are connected to each other, and the connecting ring body is composed of a plurality of annularly distributed arc blocks;

[0029] The moving mechanism is symmetrically arranged in two groups, and is fixed on the inner wall of the connecting ring body;

[0030] A plurality of arc-shaped surfaces are provided in an annular distribution, are arranged corresponding to the moving mechanism, and are fixed on the moving mechanism;

[0031] The closed annular surfaces are symmetrically arranged in two on the upper and lower sides, and are detachably arranged between the arc surface and the connecting annular body. That is to say, when the regulating and conveying device is adjusted, when the product size needs to be increased, the closed annular surfaces on the upper and lower sides are removed, and then the arc surface is driven to move outward by the moving mechanism, so that the gap between the two adjacent arc surfaces becomes larger, that is, the volume of the dispersed phase material flowing out of the regulating and conveying device becomes larger, and the size of the product produced after reacting with the continuous phase material becomes larger; when the product size needs to be reduced, the closed annular surfaces on the upper and lower sides are removed, and then the arc surface is driven to move toward the center by the moving mechanism, so that the gap between the two adjacent arc surfaces becomes smaller. It should be noted that there is always a gap between the two adjacent arc surfaces, that is, the volume of the dispersed phase material flowing out of the regulating and conveying device becomes smaller, and the size of the product produced after reacting with the continuous phase material becomes smaller.

[0032] Further, as a preference, the moving mechanism comprises:

[0033] A slide rail is fixed on the inner wall of the arc block;

[0034] A moving block is slidably arranged on the slide rail;

[0035] The connecting rod is arranged parallel to the slide rail, and one end is fixedly connected to the moving block, and the other end is fixedly connected to the outer wall of the arc surface. That is to say, under the action of the moving block and the slide rail, the arc surface is driven to move by the connecting rod, and then the spacing between two adjacent arc surfaces is adjusted to control the target product size and realize the controllable growth of grains. After the position adjustment of the arc surface is completed, the closed ring surface is clamped on the connecting rod, so that the dispersed phase material can only flow out through the gap between the arc surfaces.

[0036] Further, as a preference, the collection component comprises:

[0037] A spiral guide body is fixed at the bottom of the bearing surface, and a plurality of guide channels are arranged on the outside of the spiral guide body, and the guide channels on the spiral guide body correspond to the gap between the outer shell and the inner shell;

[0038] The limiting shell is arranged on the outside of the spiral guide body, and the top is fixedly connected to the bottom of the shell body, and the bottom is connected to the external filtering device. That is to say, after the continuous phase material passes through the through hole, it flows between multiple arc-shaped surfaces and takes away the dispersed phase material. The dispersed phase material is evenly dispersed in the continuous phase material and undergoes a preliminary reaction. Then, under the action of the limiting shell, it enters the guide channel in the spiral guide body to flow and fully react. After the reaction is completed, it enters the filtering device through the bottom of the limiting shell for subsequent process treatment.

[0039] The preparation method of the micro-chemical continuous synthesis equipment of nano barium sulfate / barium carbonate comprises the following steps:

[0040] Step 1: First, the dispersed phase conveying device is driven to rotate by rotating the motor, and the telescopic conveying channel rotates on the adjustment arc opening on the inner shell, driving the adjustable conveying device to rotate to a position corresponding to the arc opening on the outer shell, and then the adjustable conveying device is extended under the extension of the telescopic conveying channel;

[0041] Step 2: Then remove the closed annular surfaces on the upper and lower sides, and drive the connecting rod to move on the slide rail through the moving block in the moving mechanism to drive the arc surface to move, and adjust the gap between each arc surface. When the arc surface moves outward, the gap between two adjacent arc surfaces becomes larger, and the volume of the dispersed phase material flowing out of the adjustable conveying device becomes larger, and the size of the product produced after reacting with the continuous phase material becomes larger. When the arc surface moves toward the center, the gap between two adjacent arc surfaces becomes smaller, and the volume of the dispersed phase material flowing out of the adjustable conveying device becomes smaller, and the size of the product produced after reacting with the continuous phase material becomes smaller. After the position adjustment of the arc surface is completed, select the closed annular surface corresponding to the position of the arc surface, install it on the connecting rod, and seal it so that the dispersed phase material can only flow out through the gap between the arc surfaces, and then the telescopic conveying channel shrinks to drive the adjustable conveying device to retract;

[0042] Step 3: Then, the adjusting assembly is rotated to drive the adjusting ring to rotate, so that the through hole corresponds to the bottom of the continuous phase conveying channel, and then the dispersed phase conveying device is rotated, driving the adjusting conveying device to rotate to the position corresponding to the through hole on the adjusting ring, thereby connecting the adjusting conveying device and the continuous phase conveying channel;

[0043] Step 4: Then, materials are injected into the continuous phase conveying device and the dispersed phase conveying device at the same time. When preparing nano barium sulfate, the injected continuous phase material is a barium sulfide solution, and the dispersed phase material is a sodium sulfate solution. When preparing nano barium carbonate, the injected continuous phase material is a barium sulfide, barium hydroxide or barium chloride solution, and the dispersed phase material is carbon dioxide gas. When injecting carbon dioxide gas, it is necessary to maintain the overall sealing of the dispersed phase conveying device to ensure that the carbon dioxide gas enters the regulating conveying device through the telescopic conveying channel, and then the continuous phase material flows downward through the continuous phase conveying channel and mixes with the dispersed phase material flowing out through the gap between the arc surfaces, so that the dispersed phase material is evenly dispersed in the continuous phase material;

[0044] Step 5: The materials of the final preliminary mixed reaction are fully mixed after being transported through the guide channel in the spiral guide body, and then enter the filtering device for subsequent process treatment.

[0045] Compared with the prior art, the present invention has the following beneficial effects:

[0046] In the present invention, the solution as the continuous phase is transported in batches through the setting of the continuous phase conveying device to form a plurality of stable flow channels, so that the material as the dispersed phase can be evenly dispersed therein and react chemically therewith; the material as the dispersed phase is transported to the flow channel of the continuous phase solution in sequence through the setting of the dispersed phase conveying device; the conveying rate of the dispersed phase material and the degree of dispersion in the continuous phase are controlled by adjusting the setting of the conveying device, so as to realize the controllable growth of grains, the uniform size of the target product, and effectively improve the degree of nano-crystalization; and the equipment can be coupled with the front-end pretreatment and the back-end filtration, drying and other supporting facilities of the current traditional process, the raw material source is abundant and the cost is low, the process is highly versatile, and the target product has high added value. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 It is a schematic diagram of the overall structure of a micro-chemical continuous synthesis device for nano-barium sulfate / barium carbonate;

[0048] Figure 2 This is a schematic diagram of the structure of the continuous phase conveying device in the micro-chemical continuous synthesis equipment of nano-barium sulfate / barium carbonate;

[0049] Figure 3 It is a schematic diagram of the structure of the dispersed phase conveying device in the micro-chemical continuous synthesis equipment of nano-barium sulfate / barium carbonate;

[0050] Figure 4 It is a schematic diagram of the structure of the regulating and conveying device in the extended state in the micro-chemical continuous synthesis equipment of nano barium sulfate / barium carbonate;

[0051] Figure 5It is a top view of the dispersing and conveying device in the micro-chemical continuous synthesis equipment of nano barium sulfate / barium carbonate;

[0052] Figure 6 This is a schematic diagram of the structure of the regulating and conveying device in the micro-chemical continuous synthesis equipment of nano barium sulfate / barium carbonate;

[0053] Figure 7 This is a schematic diagram of point A in the micro-chemical continuous synthesis equipment of nano-barium sulfate / barium carbonate;

[0054] In the figure: 1. support frame; 2. outer shell; 3. inner shell; 4. rotation adjustment component; 5. continuous phase conveying device; 6. dispersed phase conveying device; 7. regulating conveying device; 8. collecting component; 41. adjusting ring; 42. through hole; 43. driving motor; 51. central diverter; 52. diverter pipeline; 53. limit plate; 54. continuous phase conveying channel; 61. bearing surface; 62. rotating motor; 63. flow distributor; 64. conveying port; 65. telescopic conveying channel; 71. connecting ring body; 72. moving mechanism; 73. arc surface; 74. closed ring surface; 81. spiral guide body; 82. limiting shell; 711. arc block; 721. slide rail; 722. moving block; 723. connecting rod. DETAILED DESCRIPTION

[0055] See also Figure 1 to Figure 7 In the embodiment of the present invention, the micro-chemical continuous synthesis equipment and preparation method of nano barium sulfate / barium carbonate include:

[0056] Support frame 1, which carries the whole equipment and connects the front-end pre-treatment and the back-end filtering, drying and other supporting facilities;

[0057] The outer shell 2 is fixed on the support frame 1, and the lower part of the outer shell 2 is provided with a plurality of circularly distributed arc openings;

[0058] The inner shell 3 is coaxially arranged with the outer shell 2 and is located on the inner side of the outer shell 2. The top of the inner shell 3 is fixedly connected with the top of the outer shell 2, and the lower part of the inner shell 3 is provided with a plurality of annularly distributed adjustment arc openings, which correspond to the arc-shaped openings.

[0059] The rotation adjustment component 4 is rotatably arranged between the outer shell 2 and the inner shell 3 and is located above the arc opening and the adjustment arc opening;

[0060] The continuous phase conveying device 5 is arranged at the upper center of the inner shell 3 and is fixedly connected to the inner shell 3;

[0061] The dispersed phase conveying device 6 is fixed at the lower center of the inner shell 3, and the bottom is fixedly connected to the inner shell 3;

[0062] A plurality of regulating and conveying devices 7 are provided in an annular distribution, corresponding to the arc-shaped opening on the outer shell 2, and the regulating and conveying devices 7 are fixed on the outside of the dispersed phase conveying device 6;

[0063] The collecting assembly 8 is fixed at the bottom of the dispersed phase conveying device 6 and corresponds to the gap between the inner shell 3 and the outer shell 2 .

[0064] In this embodiment, the rotation adjustment component 4 includes:

[0065] The adjusting ring 41 is rotatably disposed between the inner housing 3 and the outer housing 2 and is located above the arc opening and the adjusting arc opening;

[0066] A plurality of through holes 42 are provided in an annular distribution, and are arranged on the adjustment ring 41 and are correspondingly arranged with the adjustment conveying device 7;

[0067] The driving motor 43 is fixed between the inner shell 3 and the outer shell 2, and is connected to the adjusting ring 41 through the tooth segment. That is to say, driven by the driving motor 43, the adjusting ring 41 is driven by the tooth segment to rotate between the inner shell 3 and the outer shell 2 to adjust the position of the through hole 42. When the through hole 42 is located between the continuous phase conveying device 5 and the regulating conveying device 7, when the continuous phase material flows through the through hole 42, the dispersed phase material is evenly dispersed in the continuous phase material through the regulating conveying device 7, and a chemical reaction is carried out to generate grains; when the through hole 42 is misaligned with the position between the continuous phase conveying device 5 and the regulating conveying device 7, that is, the adjusting ring 41 separates the continuous phase conveying device 5 and the regulating conveying device 7, the equipment stops working at this time, and the regulating conveying device 7 can be adjusted to control the size of the generated grains.

[0068] In this embodiment, the continuous phase conveying device 5 comprises:

[0069] The central flow divider 51 is coaxially arranged with the inner shell 3 and is arranged at the upper center of the inner shell 3;

[0070] A plurality of flow dividing pipes 52 are provided in an annular distribution, corresponding to the through holes 42 on the adjusting ring 41, and the two ends of the flow dividing pipes 52 are respectively connected to the central flow dividing device 51 and the inner shell 3;

[0071] The limiting plates 53 are provided in a plurality of groups in an annular distribution, and each group is provided with two symmetrically distributed plates, which are respectively provided on both sides of the flow dividing pipe 52, and are located between the inner shell 3 and the outer shell 2, and above the adjusting ring 41;

[0072] The continuous phase conveying channel 54 is arranged between each set of limiting plates 53, the outer shell 2, the inner shell 3 and the adjusting ring 41. That is to say, after the continuous phase material is injected into the central diverter 51, the material flows along the multiple diverting pipes 52, and is transported through multiple pipes to carry out multiple batches of simultaneous reactions, which effectively improves the reaction efficiency. The continuous phase material enters the continuous phase conveying channel 54 between the limiting plates 53 through the diverting pipes 52, and each continuous phase conveying channel 54 corresponds to the adjusting conveying device 7, which fully ensures that the dispersed phase material is evenly dispersed in the continuous phase material, while effectively reducing the consumption of raw materials and reducing waste.

[0073] In this embodiment, the dispersed phase conveying device 6 comprises:

[0074] The bearing surface 61, the outer ring is fixedly connected to the bottom of the inner shell 3;

[0075] A rotating motor 62 is fixed at the top center of the bearing surface 61;

[0076] The flow distributor 63 is arranged at the top center of the rotating motor 62 and is fixedly connected to the rotating motor 62;

[0077] The delivery port 64 is fixed at the top center of the flow distributor 63;

[0078] The telescopic conveying channels 65 are provided with a plurality of annular distributions and fixed around the lower part of the flow distributor 63. The telescopic conveying channels 65 correspond to the adjustment arc opening on the inner shell 3 and are slidably connected to the adjustment arc opening. That is to say, driven by the rotating motor 62, the flow distributor 63 drives the telescopic conveying channel 65 to rotate on the adjustment arc opening on the inner shell 3, and then drives the adjustment conveying device 7 to rotate between the inner shell 3 and the outer shell 2, and adjusts the position between the adjustment conveying device 7 and the continuous phase conveying channel 54. When it is necessary to change the grain size and adjust the adjustment conveying device 7, the rotating motor 62 drives the flow distributor 63 to rotate, and then drives the adjustment conveying device 7 to rotate to the position corresponding to the arc opening on the outer shell 2 through the telescopic conveying channel 65. At this time, the adjusting ring 41 rotates to adjust the continuous phase conveying channel 54 is closed, and then the adjusting conveying device 7 is extended for adjustment under the elongation of the telescopic conveying channel 65. After the adjustment is completed, it is retracted and reset under the contraction of the telescopic conveying channel 65, and then the rotating motor 62 rotates, and the adjusting conveying device 7 is driven to move to a position opposite to the continuous phase conveying channel 54 through the telescopic conveying channel 65. Then the adjusting ring 41 is rotated to make the through hole 42 between the adjusting conveying device 7 and the continuous phase conveying channel 54, so as to connect the adjusting conveying device 7 and the continuous phase conveying channel 54, so that the dispersed phase material is fully dispersed into the continuous phase material to react and produce grains.

[0079] In this embodiment, the regulating and conveying device 7 comprises:

[0080] The connecting ring body 71 is fixedly connected to one end of the telescopic conveying channel 65 away from the flow distributor 63, and the connecting ring body 71 and the telescopic conveying channel 65 at the connection are mutually connected, and the connecting ring body 71 is composed of a plurality of annularly distributed arc blocks 711;

[0081] The moving mechanism 72 is provided with two groups symmetrically distributed up and down and fixed on the inner wall of the connecting ring body 71;

[0082] A plurality of arc-shaped surfaces 73 are provided in an annular distribution, and are provided corresponding to the moving mechanism 72 and fixed on the moving mechanism 72;

[0083] The closed annular surfaces 74 are symmetrically arranged in two on the upper and lower sides, and are detachably arranged between the arc surface 73 and the connecting ring body 71. That is to say, when the regulating and conveying device 7 is adjusted, when it is necessary to increase the size of the product, the closed annular surfaces 74 on the upper and lower sides are removed, and then the arc surface 73 is driven to move outward by the moving mechanism 72, so that the gap between the two adjacent arc surfaces 73 becomes larger, that is, the volume of the dispersed phase material flowing out of the regulating and conveying device 7 becomes larger, and the size of the product produced after reacting with the continuous phase material becomes larger; when it is necessary to reduce the size of the product, the closed annular surfaces 74 on the upper and lower sides are removed, and then the arc surface 73 is driven to move toward the center by the moving mechanism 72, so that the gap between the two adjacent arc surfaces 73 becomes smaller. It should be noted that there is always a gap between the two adjacent arc surfaces 73, that is, the volume of the dispersed phase material flowing out of the regulating and conveying device 7 becomes smaller, and the size of the product produced after reacting with the continuous phase material becomes smaller.

[0084] In this embodiment, the moving mechanism 72 includes:

[0085] The slide rail 721 is fixed on the inner wall of the arc block 711;

[0086] A moving block 722 is slidably disposed on the slide rail 721;

[0087] The connecting rod 723 is arranged parallel to the slide rail 721, and one end is fixedly connected to the moving block 722, and the other end is fixedly connected to the outer wall of the arc surface 73. That is to say, under the action of the moving block 722 and the slide rail 721, the arc surface 73 is driven to move by the connecting rod 723, and then the spacing between two adjacent arc surfaces 73 is adjusted to control the target product size and realize the controllable growth of the grains. After the position adjustment of the arc surface 73 is completed, the closed annular surface 74 is clamped on the connecting rod 723, so that the dispersed phase material can only flow out through the gap between the arc surfaces 73.

[0088] In this embodiment, the collection component 8 includes:

[0089] The spiral guide body 81 is fixed to the bottom of the bearing surface 61, and a plurality of guide channels are arranged on the outer side thereof, and the guide channels on the spiral guide body 81 correspond to the gap between the outer shell 2 and the inner shell 3;

[0090] The limiting shell 82 is arranged outside the spiral guide body 81, and the top is fixedly connected to the bottom of the outer shell 2, and the bottom is connected to the external filtering device. That is to say, after the continuous phase material passes through the through hole 42, it flows between the multiple arc-shaped surfaces 73 and takes away the dispersed phase material. The dispersed phase material is evenly dispersed in the continuous phase material and undergoes a preliminary reaction. Then, under the action of the limiting shell 82, it enters the guide channel in the spiral guide body 81 to flow and fully react. After the reaction is completed, it enters the filtering device through the bottom of the limiting shell 82 for subsequent process treatment.

[0091] In this embodiment, the preparation method of the micro-chemical continuous synthesis equipment of nano-barium sulfate / barium carbonate includes the following steps:

[0092] Step 1: First, the dispersed phase conveying device 6 is driven to rotate by the rotating motor 62, and the telescopic conveying channel 65 rotates on the adjustment arc opening on the inner shell 3, driving the adjustment conveying device 7 to rotate to a position corresponding to the arc opening on the outer shell 2, and then the adjustment conveying device 7 is extended under the extension of the telescopic conveying channel 65;

[0093] Step 2: Then remove the closed annular surfaces 74 on the upper and lower sides, and drive the connecting rod 723 to move on the slide rail 721 through the moving block 722 in the moving mechanism 72 to drive the arc surface 73 to move, and adjust the gap between each arc surface 73. When the arc surface 73 moves outward, the gap between two adjacent arc surfaces 73 becomes larger, that is, the volume of the dispersed phase material flowing out of the adjustable conveying device 7 becomes larger, and the size of the product produced after reacting with the continuous phase material becomes larger. When the arc surface 73 moves toward the center, the gap between two adjacent arc surfaces 73 becomes smaller, that is, the volume of the dispersed phase material flowing out of the adjustable conveying device 7 becomes smaller, and the size of the product produced after reacting with the continuous phase material becomes smaller. After the position adjustment of the arc surface 73 is completed, select the closed annular surface 74 corresponding to the position of the arc surface 73, install it on the connecting rod 723, and seal it so that the dispersed phase material can only flow out through the gap between the arc surfaces 73, and then the telescopic conveying channel 65 contracts to drive the adjustable conveying device 7 to retract;

[0094] Step 3: Then, the adjusting assembly 4 is rotated to drive the adjusting ring 41 to rotate, so that the through hole 42 corresponds to the bottom of the continuous phase conveying channel 54, and then the dispersed phase conveying device 6 is rotated, driving the adjusting conveying device 7 to rotate to the position corresponding to the through hole 42 on the adjusting ring 41, thereby connecting the adjusting conveying device 7 and the continuous phase conveying channel 54;

[0095] Step 4: Then, materials are injected into the continuous phase conveying device 5 and the dispersed phase conveying device 6 at the same time. When preparing nano barium sulfate, the injected continuous phase material is a barium sulfide solution, and the dispersed phase material is a sodium sulfate solution. When preparing nano barium carbonate, the injected continuous phase material is a barium sulfide, barium hydroxide or barium chloride solution, and the dispersed phase material is carbon dioxide gas. When injecting carbon dioxide gas, it is necessary to maintain the overall sealing of the dispersed phase conveying device 6 to ensure that the carbon dioxide gas enters the regulating conveying device 7 through the telescopic conveying channel 65, and then the continuous phase material flows downward through the continuous phase conveying channel 54, and is mixed with the dispersed phase material flowing out through the gap between the arc surfaces 73, so that the dispersed phase material is evenly dispersed in the continuous phase material;

[0096] Step 5: The materials of the final preliminary mixed reaction are transported through the guide channel in the spiral guide body 81 for full mixing and then enter the filtering device for subsequent process treatment.

[0097] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. Micro-chemical continuous synthesis equipment of nano barium sulfate / barium carbonate, characterized by: include: A support frame (1) supports the entire device and connects the front-end pre-treatment and the back-end filtering, drying and other supporting facilities; An outer shell (2) is fixed on the support frame (1), and a lower portion of the outer shell (2) is provided with a plurality of circularly distributed arc-shaped openings; The inner shell (3) is coaxially arranged with the outer shell (2) and is located on the inner side of the outer shell (2). The top of the inner shell (3) is fixedly connected to the top of the outer shell (2), and the lower part of the inner shell (3) is provided with a plurality of annularly distributed adjustment arc openings, and the adjustment arc openings correspond to the arc-shaped openings. A rotation adjustment component (4) is rotatably disposed between the outer shell (2) and the inner shell (3) and is located above the arc opening and the adjustment arc opening; A continuous phase conveying device (5) is arranged at the upper center of the inner shell (3) and is fixedly connected to the inner shell (3); A dispersed phase conveying device (6) is fixed at the lower center of the inner shell (3), and the bottom is fixedly connected to the inner shell (3); A plurality of regulating and conveying devices (7) are provided in an annular distribution, corresponding to the arc-shaped opening on the outer shell (2), and the regulating and conveying devices (7) are fixed on the outside of the dispersed phase conveying device (6); The collecting assembly (8) is fixed at the bottom of the dispersed phase conveying device (6) and corresponds to the gap between the inner shell (3) and the outer shell (2).

2. The micro-chemical continuous synthesis equipment of nano-barium sulfate / barium carbonate according to claim 1, characterized in that: The rotation adjustment component (4) comprises: An adjusting ring (41) is rotatably disposed between the inner housing (3) and the outer housing (2) and is located above the arc-shaped opening and the adjusting arc opening; A plurality of through holes (42) are provided in an annular distribution, are arranged on the adjustment ring (41), and are arranged corresponding to the adjustment and conveying device (7); The driving motor (43) is fixed between the inner housing (3) and the outer housing (2), and is connected to the adjusting ring (41) via the tooth segment.

3. The micro-chemical continuous synthesis equipment of nano-barium sulfate / barium carbonate according to claim 2, characterized in that: The continuous phase conveying device (5) comprises: A central flow divider (51) is coaxially arranged with the inner shell (3) and is arranged at the upper center of the inner shell (3); A plurality of flow dividing pipes (52) are provided in an annular distribution, corresponding to the through holes (42) on the adjusting ring (41), and the two ends of the flow dividing pipes (52) are respectively connected to the central flow dividing device (51) and the inner shell (3); The limiting plates (53) are provided in a plurality of groups in an annular distribution, and each group is provided with two symmetrically distributed plates, which are respectively arranged on both sides of the flow distribution pipe (52), and are located between the inner shell (3) and the outer shell (2), and are located above the adjustment ring (41); The continuous phase conveying channel (54) is arranged between each set of limiting plates (53), the outer shell (2), the inner shell (3) and the adjusting ring (41).

4. The micro-chemical continuous synthesis equipment of nano-barium sulfate / barium carbonate according to claim 3, characterized in that: The dispersed phase conveying device (6) comprises: The bearing surface (61), the outer ring is fixedly connected to the bottom of the inner shell (3); A rotating motor (62) is fixed at the top center of the bearing surface (61); A flow distributor (63) is arranged at the top center of the rotating motor (62) and is fixedly connected to the rotating motor (62); A delivery port (64) is fixed at the top center of the flow distributor (63); A plurality of telescopic conveying channels (65) are provided in an annular arrangement and are fixed around the lower portion of the flow distributor (63). The telescopic conveying channels (65) correspond to the adjustment arc opening on the inner shell (3) and are slidably connected to the adjustment arc opening.

5. The micro-chemical continuous synthesis equipment of nano-barium sulfate / barium carbonate according to claim 4, characterized in that: The regulating and conveying device (7) comprises: A communication ring body (71) is fixedly connected to one end of the telescopic conveying channel (65) away from the flow distributor (63), and the communication ring body (71) and the telescopic conveying channel (65) at the connection are mutually communicated, and the communication ring body (71) is composed of a plurality of annularly distributed arc blocks (711); The moving mechanism (72) is provided with two groups symmetrically distributed up and down and fixed on the inner wall of the connecting ring body (71); A plurality of arc-shaped surfaces (73) are provided in an annular distribution and are arranged corresponding to the moving mechanism (72) and fixed on the moving mechanism (72); The closed annular surfaces (74) are symmetrically arranged in two parts, and are detachably arranged between the arc surface (73) and the connecting annular body (71).

6. The micro-chemical continuous synthesis equipment of nano-barium sulfate / barium carbonate according to claim 5, characterized in that: The moving mechanism (72) comprises: A slide rail (721) is fixed on the inner wall of the arc block (711); A moving block (722) is slidably disposed on the slide rail (721); The connecting rod (723) is arranged parallel to the slide rail (721), and one end of the connecting rod is fixedly connected to the moving block (722), and the other end of the connecting rod is fixedly connected to the outer wall of the arc surface (73).

7. The micro-chemical continuous synthesis equipment of nano-barium sulfate / barium carbonate according to claim 6, characterized in that: The collecting component (8) comprises: A spiral guide body (81) is fixed at the bottom of the bearing surface (61), and a plurality of guide channels are provided on the outer side of the spiral guide body (81), and the guide channels on the spiral guide body (81) correspond to the gap between the outer shell (2) and the inner shell (3); The limiting shell (82) is arranged on the outside of the spiral guide body (81), and the top is fixedly connected to the bottom of the outer shell (2), and the bottom is connected to the external filtering device.

8. The method for preparing the micro-chemical continuous synthesis equipment of nano-barium sulfate / barium carbonate according to claim 7, characterized in that: The steps include: Step 1: First, the dispersed phase conveying device (6) is driven to rotate by the rotating motor (62), and the telescopic conveying channel (65) is rotated on the adjustment arc opening on the inner shell (3), driving the adjustment conveying device (7) to rotate to a position corresponding to the arc opening on the outer shell (2), and then the telescopic conveying channel (65) drives the adjustment conveying device (7) to extend; Step 2: Then, the moving mechanism (72) drives the arc surface (73) to move, adjusts the gap between the arc surfaces (73), and installs closed annular surfaces (74) on the upper and lower sides of the arc surface (73), and then the telescopic conveying channel (65) is contracted and driven to be retracted; Step 3: Then, the adjusting assembly (4) is rotated to drive the adjusting ring (41) to rotate, so that the through hole (42) corresponds to the bottom of the continuous phase conveying channel (54), and then the dispersed phase conveying device (6) is rotated, driving the adjusting conveying device (7) to rotate to a position corresponding to the through hole (42) on the adjusting ring (41); Step 4: Then, materials are injected into the continuous phase conveying device (5) and the dispersed phase conveying device (6) at the same time, and the continuous phase material flows downward through the continuous phase conveying channel (54) and mixes with the dispersed phase material flowing out through the gap between the arc-shaped surfaces (73), so that the dispersed phase material is evenly dispersed in the continuous phase material; Step 5: The materials that have been initially mixed are transported through the flow channel in the spiral flow guide (81) for full mixing and then enter the filtering device for subsequent process treatment.

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