Multi-stage reaction type chemical reaction kettle

Abstract

The invention discloses a multistage reaction type chemical reaction kettle, and relates to the technical field of chemical process manufacturing. The reaction kettle comprises a kettle body supporting frame, an outer reaction kettle barrel is arranged in the middle of the kettle body supporting frame, an inner reaction kettle barrel is arranged in the outer reaction kettle barrel, a connecting rod is arranged in the middle of the inner reaction kettle barrel, a driving mechanism frame is arranged over the top of the inner reaction kettle barrel, and a pressure gauge is arranged on one side of the outer wall of the driving mechanism frame; the stirring paddle angle adjusting device is arranged, real-time material data is transmitted to the PLC control system through the online viscosity sensor, the system compares a preset threshold value and then sends an adjusting instruction to the small servo motor, the small servo motor drives the connecting rod to rotate, and the two adjusting sliding blocks are driven to vertically slide along the inner wall of the connecting rod; further, the guide block is pushed to transversely slide along the guide groove, and the stop block and the linkage rod are driven to synchronously rotate, so that the angle of the paddle is adjusted, the uniform stirring requirements of different materials are met, and the material mixing uniformity is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of chemical process manufacturing, in particular to a multi-stage reaction type chemical reaction kettle. BACKGROUND

[0002] In the fields of chemical industry, pharmaceutical industry and new material synthesis, the reaction kettle is the core equipment for realizing multi-step continuous synthesis, sectional temperature control reaction and material gradient conversion, and can complete multiple processes such as raw material pretreatment, intermediate reaction and product refining in one set of device. In actual application, different viscosity and phase state materials have significant differences in the demand for stirring flow field. The stirring structure with fixed angle blades cannot meet the mixing needs of multiple specifications of materials, which easily causes local material retention and uneven mixing, thereby directly reducing the reaction conversion rate. In addition, for materials prone to solidification, they are easily adhered to the inner wall of the discharge port and gradually accumulated during stirring, which not only slows down the material discharge speed, but also causes complete blockage of the discharge port in severe cases, forcing the production process to be interrupted. To solve the above problems, the present application provides a multi-stage reaction type chemical reaction kettle. SUMMARY

[0003] In order to solve the problems of blade adaptation to different material stirring and cleaning of the inner wall of the discharge port, the present application aims to provide a multi-stage reaction type chemical reaction kettle.

[0004] To solve the above technical problems, the present application adopts the following technical scheme: a multi-stage reaction type chemical reaction kettle, comprising a kettle body support frame, an outer reaction kettle cylinder is arranged in the middle of the kettle body support frame, an inner reaction kettle cylinder is arranged inside the outer reaction kettle cylinder, a connecting rod is arranged in the middle of the inner reaction kettle cylinder, a driving mechanism frame is arranged directly above the top of the inner reaction kettle cylinder, a pressure gauge is arranged on one side of the outer wall of the driving mechanism frame, an angle adjusting device for stirring paddle is arranged on the outer wall of the connecting rod, a quick-release sealing connecting device is arranged at the bottom of the connecting rod, and a kettle cylinder wall scraping cleaning device is arranged directly below the quick-release sealing connecting device.

[0005] Preferably, the stirring paddle angle adjusting device comprises two sets of equidistantly distributed fixed frames, both of which are fixedly installed on the outer wall of the connecting rod, both of which are internally transversely slidably installed with guide blocks, the end of the guide block is rotatably installed with a stop block, the connecting rod is internally vertically slidably installed with two symmetrically distributed adjusting sliding blocks, the two adjusting sliding blocks are internally penetratively installed with drive rods, the outer wall of the connecting rod is fixedly installed with two sets of fixed plates, both sides of the two sets of fixed plates are rotatably installed with connecting rods, and the other end of the connecting rod is fixedly connected with the stop block, the outer wall of the connecting rod is fixedly installed with a paddle through a plug-in pin, the inner part of the stop block is provided with a limiting groove in sliding cooperation with the connecting rod, and the connecting rod slides along the inner wall of the limiting groove, both of the two sets of fixed frames are internally provided with a guide groove in sliding cooperation with the guide block, and the guide block slides transversely along the inner wall of the guide groove, the inner part of the connecting rod is provided with a sliding groove in sliding cooperation with the two adjusting sliding blocks, and the two adjusting sliding blocks are closely attached to the inner wall of the sliding groove, the inner part of the connecting rod is fixedly installed with a small servo motor, the driving end of the small servo motor is in transmission connection with the drive rod, the inner part of the adjusting sliding block is provided with a sliding groove in cooperation with the guide block, and the guide block is closely attached to the inner wall of the sliding groove.

[0006] Preferably, the quick-release sealing connection device comprises a fixed ring, the fixed ring is arranged at the discharge port of the inner reaction kettle cylinder, two symmetrically distributed stop plates are fixedly installed on the top of the fixed ring through bolts, and one end of the two stop plates is fixedly connected with the inner wall of the inner reaction kettle cylinder, a rotating cylinder is rotatably installed in the inner part of the fixed ring, a connecting rod is slidably installed in the inner part of the rotating cylinder, a stop disc is fixedly installed at the end of the connecting rod, a reset spring is sleeved on the outer wall of the connecting rod, and the two ends of the reset spring are fixedly connected with the inner wall of the rotating cylinder and the outer wall of the stop disc, respectively, a limiting pin is fixedly installed on the outer end of the connecting rod, and an annular sealing washer is arranged on the top of the rotating cylinder.

[0007] Preferably, the kettle cylinder wall scraping cleaning device comprises a fixed column, which is fixedly installed at the bottom of the rotating cylinder, a fixed ring is fixedly sleeved on the outer wall of the fixed column, and an inner wall scraping plate is fixedly installed on one side of the outer wall of the fixed ring through bolts.

[0008] Preferably, the driving mechanism frame is fixedly installed with an explosion-proof motor at the top, and the driving end of the explosion-proof motor is fixedly connected with the end of the connecting rod, and the outer wall of the driving rod is provided with threads in transmission cooperation with the two adjusting sliding blocks.

[0009] Compared with the prior art, the application has the following advantages: 1. The paddle angle adjusting device is provided, real-time material data is transmitted to the PLC control system through the online viscosity inductor, the system sends adjusting instructions to the small servo motor after comparing the preset threshold, the small servo motor drives the connecting rod to rotate, drives two adjusting sliding blocks to vertically slide along the inner wall of the connecting rod, and then drives the guide block to transversely slide along the guide groove, drives the stop block and the connecting rod to synchronously rotate, paddle angle adjustment is realized, uniform stirring requirements of different materials are adapted, and material mixing uniformity is improved; 2. The quick-release sealing connecting device is provided, the connecting rod is vertically lowered along the inner wall of the rotating cylinder, the reset spring is stored with elastic potential energy under pressure, the reset spring releases the elastic potential energy after sliding to the preset position, the limit pin is clamped into the groove in the connecting rod, mechanical locking is completed, when disassembling, an external force is applied to the connecting rod to make it slide upward, the limit pin is extruded to shrink and disengage from the groove, the effect of quickly disassembling the connecting rod is realized, and maintenance convenience is improved; 3. The kettle cylinder wall scraping cleaning device is provided, the explosion-proof motor is started first, the stirring device is driven to operate, and the connecting rod is synchronously rotated, because the connecting rod and the rotating cylinder are mechanically locked, when the rotating cylinder rotates along the inner wall of the fixed ring, the fixed column and the fixed ring can be synchronously rotated, and then the inner wall scraper is synchronously rotated, the effect of circularly scraping and cleaning the inner wall of the discharge port is realized, and the cleaning efficiency is improved. DETAILED DESCRIPTION

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained without creative labor on the basis of these drawings.

[0011] Figure 1 The whole structure of the present application is shown in the figure; Figure 2 The inner reaction kettle cylinder side planing structure in the present application is shown in the figure; Figure 3 The paddle angle adjusting device side structure in the present application is shown in the figure; Figure 4 The Figure 3 The structure of B in the figure is shown in the enlarged view; Figure 5 The fixed plate and the limit groove side structure in the present application are shown in the figure; Figure 6 The Figure 5 The structure of A in the figure is shown in the enlarged view; Figure 7 The quick-release sealing connecting device side structure in the present application is shown in the figure; Figure 8 This is a schematic diagram of the explosion-proof motor structure in this invention.

[0012] In the diagram: 1. Reactor body support frame; 2. Outer reactor cylinder; 3. Inner reactor cylinder; 4. Connecting rod; 5. Drive mechanism frame; 501. Explosion-proof motor; 6. Pressure gauge; 7. Stirring paddle angle adjustment device; 701. Fixed frame; 702. Guide block; 703. Stop block; 704. Adjusting slider; 705. Drive rod; 706. Fixed plate; 707. Linkage rod; 708. Paddle blade; 709. Limiting groove; 7 10. Guide groove; 711. Sliding groove; 712. Small servo motor; 8. Quick-release sealing connection device; 801. Fixing ring; 802. Stop plate; 803. Rotating cylinder; 804. Connecting rod; 805. Stop disc; 806. Return spring; 807. Limit pin; 808. Annular sealing gasket; 9. Kettle wall scraping and cleaning device; 901. Fixing column; 902. Fixing ring; 903. Inner wall scraper. Detailed Implementation

[0013] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0014] Example: Figures 1-8 As shown, the present invention provides a technical solution: a multi-stage reaction chemical reactor, including a reactor body support frame 1, an outer reactor cylinder 2 in the middle of the reactor body support frame 1, an inner reactor cylinder 3 inside the outer reactor cylinder 2, a connecting rod 4 in the middle of the inner reactor cylinder 3, a drive mechanism frame 5 directly above the top of the inner reactor cylinder 3, a pressure gauge 6 on one side of the outer wall of the drive mechanism frame 5, and a stirring paddle angle adjustment device 7 on the outer wall of the connecting rod 4; The stirring paddle angle adjustment device 7 includes two sets of fixed frames 701 that are equidistantly distributed. Both sets of fixed frames 701 are fixedly installed on the outer wall of the connecting rod 4. Guide blocks 702 are slidably installed laterally inside both sets of fixed frames 701. Stop blocks 703 are rotatably installed at the ends of the guide blocks 702. Two symmetrically distributed adjusting sliders 704 are slidably installed vertically inside the connecting rod 4. Drive rods 705 are installed through the two adjusting sliders 704. Two sets of fixed plates 706 are fixedly installed on the outer wall of the connecting rod 4. A connecting rod 707 is rotatably installed on one side of each of the two sets of fixed plates 706. The other end of the connecting rod 707 is fixedly connected to the stop block 703. A blade 708 is fixedly installed on the outer wall of the connecting rod 707 by a pin. The connecting rod 4 is provided with a quick-release sealing connection device 8 at the bottom, and a kettle cylinder wall scraping cleaning device 9 is arranged below the quick-release sealing connection device 8.

[0015] By adopting the above technical scheme, when the driving rod 705 rotates, the adjusting sliding block 704 is driven to vertically slide, and then the guide block 702 is driven to slide transversely along the inner wall of the fixed frame 701, so that the stop block 703 drives the connecting rod 707 and the paddle 708 to synchronously rotate, greatly improving the uniformity of material mixing and enhancing the adaptability of the equipment to different chemical processes.

[0016] The quick-release sealing connection device 8 comprises a fixed ring 801 arranged at the discharge port of the inner reaction kettle cylinder 3, two stop plates 802 symmetrically arranged and fixedly connected to the inner wall of the inner reaction kettle cylinder 3 at the top of the fixed ring 801, a rotating cylinder 803 rotatably arranged in the fixed ring 801, a connecting rod 804 slidably arranged in the rotating cylinder 803, a stop disc 805 fixedly arranged at the end of the connecting rod 804, and a reset spring 806 fixedly connected to the inner wall of the rotating cylinder 803 and the outer wall of the stop disc 805.

[0017] By adopting the above technical scheme, the connecting rod 4 and the rotating cylinder 803 are mechanically locked, and when the connecting rod 4 rotates, the rotating cylinder 803 can be synchronously rotated along the inside of the fixed ring 801. During maintenance, only external force needs to be applied to the connecting rod 4 to unlock and take out the stirring assembly from the kettle body, without the need to disassemble the overall structure of the kettle body, thereby improving the operation and maintenance efficiency.

[0018] The kettle cylinder wall scraping cleaning device 9 comprises a fixed column 901 fixedly arranged at the bottom of the rotating cylinder 803, a fixed ring 902 fixedly arranged on the outer wall of the fixed column 901, and an inner wall scraper 903 fixedly arranged on one side of the outer wall of the fixed ring 902 through bolts.

[0019] By adopting the above technical scheme, the fixed column 901 is fixedly connected to the bottom of the rotating cylinder 803, and when the connecting rod 4 rotates, the inner wall scraper 903 is synchronously driven to move in a circular motion close to the inner wall of the discharge port, so that the material residues adhered during the reaction process can be scraped in real time, and the scaling and hardening of the material on the inner wall of the discharge port can be avoided.

[0020] The connecting rod 804 is fixedly provided with a limiting pin 807 at the outer end, and the rotating cylinder 803 is provided with an annular sealing gasket 808 at the top.

[0021] By adopting the above technical scheme, the limiting pin 807 can rigidly limit the connecting rod 4, and the annular sealing gasket 808 forms a flexible sealing structure on the contact end face of the rotating cylinder and the fixed ring 801, thereby blocking the leakage of corrosive gas from the connecting gap, and greatly improving the sealing reliability.

[0022] The stop block 703 is internally provided with a limiting groove 709 for sliding cooperation with the connecting rod 707, and the connecting rod 707 slides along the inner wall of the limiting groove 709.

[0023] By adopting the above technical scheme, the connecting rod 707 slides along the inner wall of the limiting groove 709, avoiding deviation when the connecting rod 707 rotates, ensuring that the paddle 708 adjusts the rotation angle along the preset track, improving the controllability of the stirring working condition, and adapting to the mixing needs of materials with different viscosities The fixed frame 701 is internally provided with a guide groove 710 for sliding cooperation with the guide block 702, and the guide block 702 slides along the inner wall of the guide groove 710.

[0024] By adopting the above technical scheme, the guide block 702 slides along the inner wall of the guide groove 710, avoiding deviation during the sliding process of the guide block 702.

[0025] The connecting rod 4 is internally provided with a sliding groove 711 for sliding cooperation with two adjusting sliding blocks 704, and the two adjusting sliding blocks 704 are closely attached to the inner wall of the sliding groove 711.

[0026] By adopting the above technical scheme, the adjusting sliding block 704 slides along the inner wall of the sliding groove 711, avoiding radial deviation of the adjusting sliding block 704 under the drive of the drive rod 705, and ensuring that the two adjusting sliding blocks 704 are synchronously lifted.

[0027] The explosion-proof motor 501 is fixedly installed at the top of the drive mechanism frame 5, and the drive end of the explosion-proof motor 501 is fixedly connected with the end of the connecting rod 4. The outer wall of the drive rod 705 is provided with threads for transmission cooperation with the two adjusting sliding blocks 704.

[0028] By adopting the above technical scheme, the explosion-proof motor 501 serves as the main driving source, providing stable rotating power for the connecting rod 4 and the stirring paddle, meeting the core needs of mixing and stirring of materials in the kettle.

[0029] The inner reaction kettle cylinder 3 is internally provided with a small servo motor 712 fixedly installed in the connecting rod 4, and the drive end of the small servo motor 712 is in transmission connection with the drive rod 705.

[0030] By adopting the above technical scheme, the small servo motor 712 drives the drive rod 705 to rotate, realizing the lifting of the adjusting sliding block 704 and the adjustment of the angle of the paddle 708.

[0031] The adjusting sliding block 704 is internally provided with a sliding groove for cooperation with the guide block 702, and the guide block 702 is closely attached to the inner wall of the sliding groove.

[0032] By adopting the above technical scheme, the guide block 702 closely attaches to the sliding groove in the adjusting sliding block 704, avoiding deviation during transmission.

[0033] Working principle: in practical application, first, the cooling liquid is delivered to the bottom of the outer reaction kettle cylinder 2, and then the initial materials are fed into the kettle through the feeding port on the top of the inner reaction kettle cylinder 3 according to the proportion, then the explosion-proof motor 501 is started to drive the stirring device to fully stir the materials in the inner reaction kettle cylinder 3, and the stirred materials are delivered to the next stage reaction kettle through the discharge port at the bottom of the inner and outer double-layer kettle body to continue to participate in the reaction and stirring; When different specifications of materials are uniformly stirred, the online viscosity sensor transmits the real-time material state data to the PLC control system, the system compares and analyzes the detection data with the preset threshold value, and sends an angle adjustment instruction to the small servo motor 712, and the small servo motor 712 is started to rotate the driving rod 705, because the two adjusting sliding blocks 704 and the driving rod 705 are in threaded transmission connection, when the driving rod 705 rotates, the two adjusting sliding blocks 704 can be driven to vertically slide along the sliding groove in the inner wall of the connecting rod 4, and in the sliding process of the adjusting sliding block 704, the driving guide block 702 slides transversely along the guide groove 710 in the inner wall of the fixed frame 701, and in the sliding process, the guide block 702 is matched with the rotation of the limiting groove 709 in the inner part of the stop block 703, thereby driving the stop block 703 to rotate, so as to drive the connecting rod 707 and the paddle 708 to realize accurate angle adjustment; Figure 3 、 Figure 4 and Figure 5 , the online viscosity sensor transmits the real-time material state data to the PLC control system, the system compares and analyzes the detection data with the preset threshold value, and sends an angle adjustment instruction to the small servo motor 712, and the small servo motor 712 is started to rotate the driving rod 705, because the two adjusting sliding blocks 704 and the driving rod 705 are in threaded transmission connection, when the driving rod 705 rotates, the two adjusting sliding blocks 704 can be driven to vertically slide along the sliding groove in the inner wall of the connecting rod 4, and in the sliding process of the adjusting sliding block 704, the driving guide block 702 slides transversely along the guide groove 710 in the inner wall of the fixed frame 701, and in the sliding process, the guide block 702 is matched with the rotation of the limiting groove 709 in the inner part of the stop block 703, thereby driving the stop block 703 to rotate, so as to drive the connecting rod 707 and the paddle 708 to realize accurate angle adjustment; When it is necessary to quickly disassemble the connecting rod, according to Figure 6 、 Figure 7 , the connecting rod 4 is vertically slid downward along the inner wall of the rotating cylinder 803, and in the sliding process, the reset spring 806 is elastically deformed and stores elastic potential energy, and after sliding to the preset position, the reset spring 806 releases the accumulated elastic potential energy to drive the connecting rod 804 and the limiting pin 807 to slide outward synchronously, so that the limiting pin 807 is accurately clamped into the groove in the connecting rod 4, and mechanical locking is completed, and when disassembling and cleaning, only an upward external force needs to be applied to the connecting rod 4 to make it slide upward along the inner wall of the rotating cylinder 803, at this time, the limiting pin 807 is squeezed and contracted, so that it can be directly separated from the groove in the connecting rod 4, and quick disassembly is realized; When cleaning the inner wall of the discharge port, according to Figure 7 , the explosion-proof motor 501 is started to drive the stirring device to rotate, and the connecting rod 4 is driven to rotate, because the connecting rod 4 and the rotating cylinder 803 have been mechanically locked, when the connecting rod 4 rotates, the rotating cylinder 803 rotates along the inner wall of the fixed ring 801, and the fixed column 901 and the fixed ring 902 at the bottom are driven to rotate synchronously, and finally the inner wall scraper 903 closely contacts the inner wall of the discharge port to clean it.

[0034] Obviously, many modifications and variations of the present application are possible in light of the above teachings. It is, therefore, to be understood that within the scope of the appended claims and their equivalents, the application can be practiced otherwise than as specifically described.

Claims

1. A multi-stage reaction chemical reactor, comprising a reactor body support frame (1), characterized in that: The outer reactor cylinder (2) is provided in the middle of the reactor body support frame (1), the inner reactor cylinder (3) is provided inside the outer reactor cylinder (2), the connecting rod (4) is provided in the middle of the inner reactor cylinder (3), the drive mechanism frame (5) is provided directly above the top of the inner reactor cylinder (3), the pressure gauge (6) is provided on one side of the outer wall of the drive mechanism frame (5), and the stirring paddle angle adjustment device (7) is provided on the outer wall of the connecting rod (4). The stirring paddle angle adjustment device (7) includes two sets of fixed frames (701) that are evenly distributed. Both sets of fixed frames (701) are fixedly installed on the outer wall of the connecting rod (4). Guide blocks (702) are horizontally slidably installed inside both sets of fixed frames (701). Stop blocks (703) are rotatably installed at the ends of the guide blocks (702). Two symmetrically distributed adjusting sliders (704) are vertically slidably installed inside the connecting rod (4). Drive rods (705) are installed through the two adjusting sliders (704). Two sets of fixed plates (706) are fixedly installed on the outer wall of the connecting rod (4). A connecting rod (707) is rotatably installed on one side of each of the two sets of fixed plates (706). The other end of the connecting rod (707) is fixedly connected to the stop block (703). A blade (708) is fixedly installed on the outer wall of the connecting rod (707) by a pin. The bottom of the connecting rod (4) is provided with a quick-release sealing connection device (8), and the bottom of the quick-release sealing connection device (8) is provided with a vessel wall scraping and cleaning device (9).

2. The multi-stage reaction chemical reactor as described in claim 1, characterized in that, The quick-release sealing connection device (8) includes a fixing ring (801), which is located at the outlet of the inner reactor cylinder (3). Two symmetrically distributed stop plates (802) are fixedly installed on the top of the fixing ring (801) by bolts. One end of each stop plate (802) is fixedly connected to the inner wall of the inner reactor cylinder (3). A rotating cylinder (803) is rotatably installed inside the fixing ring (801). A connecting rod (804) is slidably installed inside the rotating cylinder (803). A stop disc (805) is fixedly installed at the end of the connecting rod (804). A return spring (806) is sleeved on the outer wall of the connecting rod (804). The two ends of the return spring (806) are fixedly connected to the inner wall of the rotating cylinder (803) and the outer wall of the stop disc (805), respectively.

3. The multi-stage reaction chemical reactor as described in claim 1, characterized in that, The vessel wall scraping cleaning device (9) includes a fixed column (901), which is fixedly installed at the bottom of the rotating cylinder (803). A fixed ring (902) is fixedly sleeved on the outer wall of the fixed column (901), and an inner wall scraper (903) is fixedly installed on one side of the outer wall of the fixed ring (902) by bolts.

4. A multi-stage reactive chemical reactor as described in claim 2, characterized in that, The connecting rod (804) is fixedly installed with a limit pin (807) at its outer end, and the top of the rotating cylinder (803) is provided with an annular sealing gasket (808).

5. A multi-stage reactive chemical reactor as described in claim 1, characterized in that, The stop block (703) has a limiting groove (709) inside which it slides in cooperation with the connecting rod (707), and the connecting rod (707) slides along the inner wall of the limiting groove (709).

6. A multi-stage reactive chemical reactor as described in claim 1, characterized in that, Both sets of fixed frames (701) have guide grooves (710) inside for sliding cooperation with guide blocks (702), and guide blocks (702) slide laterally along the inner wall of guide grooves (710).

7. A multi-stage reactive chemical reactor as described in claim 1, characterized in that, The connecting rod (4) has a sliding groove (711) inside which it is used to slide with two adjusting sliders (704), and both adjusting sliders (704) are in close contact with the inner wall of the sliding groove (711).

8. A multi-stage reactive chemical reactor as described in claim 1, characterized in that, An explosion-proof motor (501) is fixedly installed on the top of the drive mechanism frame (5), and the drive end of the explosion-proof motor (501) is fixedly connected to the end of the connecting rod (4). The outer wall of the drive rod (705) is provided with a thread for transmission cooperation with the two adjusting sliders (704).

9. A multi-stage reactive chemical reactor as described in claim 1, characterized in that, A small servo motor (712) is fixedly installed inside the connecting rod (4) at the top of the inner reactor cylinder (3). The driving end of the small servo motor (712) is connected to the driving rod (705) for transmission.

10. A multi-stage reactive chemical reactor as described in claim 1, characterized in that, The adjusting slider (704) has a groove inside that works in conjunction with the guide block (702), and the guide block (702) fits tightly against the inner wall of the groove.

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