Chemical reaction kettle for chemical raw materials

Abstract

The utility model provides a chemical reaction kettle for chemical raw materials, which relates to the technical field of reaction kettles and is characterized in that a vertically-arranged driving shaft is rotatably mounted in the center of a top cover in a penetrating manner, and the driving shaft is inserted into the reaction kettle in an extending manner; two circles of positioning short columns are welded on the driving shaft in an up-down corresponding surrounding manner; three stirring assemblies are installed on the driving shaft in a surrounding mode, each stirring assembly is integrally composed of a U-shaped supporting frame and an arc-shaped clamping plate welded to the opening end of the U-shaped supporting frame, and the upper end and the lower end of each arc-shaped clamping plate of a long-strip structure are correspondingly matched with the two vertically-corresponding positioning short columns in the two circles of positioning short columns in a sleeving and inserting mode; the arc-shaped clamping plate is matched with the driving shaft in a clamping and inserting manner. The three stirring assemblies are detachably installed in a sliding mode, and compared with the prior art that the stirring components are directly welded and integrated on the stirring shaft, the stirring assembly is convenient to independently disassemble and replace after being corroded and damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction kettles, in particular to a chemical reaction kettle for chemical raw materials. Background Technique

[0002] Chemical reaction kettles are important equipment widely used in the chemical industry, mainly used to complete physical or chemical reaction processes, such as synthesis, polymerization, cracking, extraction, hydrogenation, etc. Such equipment is designed to withstand high temperatures, high pressures and corrosive environments to ensure the safety and efficiency of chemical raw materials during the reaction process. In order to enhance the material mixing and mass transfer efficiency, a stirrer is installed inside the reaction kettle. The stirrers have various designs, including turbine type, paddle type, frame type, etc., and can be selected according to the characteristics of the reaction materials and reaction requirements. For example, a patented technology mentioned in the above information drives the stirring fan blades through a motor to achieve efficient stirring.

[0003] During long-term use, especially when dealing with corrosive or high-temperature and high-pressure chemical raw materials, the stirring blades or the stirring shaft are prone to severe corrosion and wear. In existing chemical reaction kettles, most of the stirring components are directly welded or integrated on the stirring shaft in other fixed forms. After the stirring components are corroded and worn, it is inconvenient or impossible to disassemble and replace them separately, and the entire stirring shaft and all stirring components need to be replaced as a whole, resulting in troublesome maintenance and high costs. Content of the Utility Model

[0004] In view of this, the utility model provides a chemical reaction kettle for chemical raw materials to solve the problem that most of the stirring components are directly welded or integrated on the stirring shaft in other fixed forms, making it inconvenient or impossible to disassemble and replace them separately after the stirring components are corroded and worn.

[0005] The technical solution proposed by the utility model is: a chemical reaction kettle for chemical raw materials, specifically including: a reaction kettle, on the top opening of which a top cover is threadedly fastened;

[0006] A vertically arranged driving shaft is rotatably installed through the central part of the top cover, and the driving shaft extends and is inserted into the interior of the reaction kettle; two circles of positioning short columns are welded around the driving shaft in a vertically corresponding manner; three stirring components are installed around the driving shaft, and the stirring components are integrally composed of a U-shaped support frame and an arc-shaped clamping plate welded to the opening end of the U-shaped support frame. The arc-shaped clamping plate is in a strip structure, and the upper and lower ends correspond to and are sleeved and matched with two vertically corresponding positioning short columns among the two circles of positioning short columns, and the arc-shaped clamping plate is clamped and matched with the driving shaft;

[0007] Two sections of external threads are provided at positions on the drive shaft close to the two positioning short columns, and two locking components are screwed and sleeved on the two threaded sections of the drive shaft; the locking component is integrally composed of a hexagonal nut and a thrust ring welded concentrically, and the inner circumference of the thrust ring is in an inclined section structure; both the upper and lower ends of the arc-shaped clamping plate are in an inclined section structure, and under the action of the threaded advancement of the hexagonal nut, the thrust ring abuts against one end of the arc-shaped clamping plate.

[0008] Further,

[0009] The two locking components are arranged oppositely, and the hexagonal nut is in screwed fit with the threaded section of the drive shaft.

[0010] Further,

[0011] A row of horizontally arranged stirring rods are welded between the arc-shaped clamping plate and the U-shaped support frame.

[0012] Further,

[0013] Sealing gaskets are adhesively fixed on the inner arc surface and the long vertical sections on both sides of the arc-shaped clamping plate.

[0014] Further,

[0015] When the three arc-shaped clamping plates are circumferentially clamped on the drive shaft, the sealing gasket on the inner side is in extrusion contact with the drive shaft, and the sealing gaskets on both sides are sequentially extruded and connected end to end.

[0016] Further,

[0017] A driving device is screwed and fixed at the center position of the top end of the top cover, and the top end of the drive shaft is axially connected and driven with the driving device.

[0018] Further,

[0019] Three auxiliary stirring shafts are welded around the thrust ring of the lower locking component.

[0020] Further,

[0021] Two feed pipes are symmetrically welded on the outer ring part of the top cover, and a discharge pipe is welded at the center position of the bottom of the reaction kettle.

[0022] A chemical reaction kettle for chemical raw materials provided by the present utility model has the following beneficial effects:

[0023] In the present utility model, the three stirring components are installed in a sliding and detachable manner. Compared with the prior art in which the stirring components are directly welded and integrated on the stirring shaft, it is convenient to separately disassemble and replace them after corrosion and damage, without the need to integrally replace the entire stirring shaft and all stirring components, greatly shortening the maintenance time, reducing the maintenance cost, and improving the operation efficiency of the reaction kettle and the continuity of the production line supporting the reaction kettle.

[0024] In addition, when the three arc-shaped clamping plates are clamped around the driving shaft, the inner sealing gasket is in extrusion contact with the driving shaft, and the sealing gaskets on both sides are sequentially extruded and connected end to end. Most of the driving shaft can be covered and sealed inside it, separating most of the driving shaft from the chemical raw materials, delaying and reducing the anti-corrosion damage of the chemical raw materials to the driving shaft, and helping to indirectly extend the service life of the driving shaft.

[0025] In addition, the three auxiliary stirring shafts rotate in the bottom space of the reaction kettle, and can stir the chemical raw materials in the bottom space of the reaction kettle, which is beneficial to comprehensively and thoroughly stir the chemical raw materials. Moreover, the three auxiliary stirring shafts can also be used as the tightening and loosening driving components of the lower locking components. The lower locking components can be directly twisted and tightened or loosened through the three auxiliary stirring shafts, eliminating the trouble of having to use a wrench to twist and tighten the lower locking components. Furthermore, the three auxiliary stirring shafts have the effect of serving two purposes with one device, which can save the additional configuration of the tightening and loosening driving components for the lower locking components, and help to simplify the overall structure of the reaction kettle to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings of the embodiments will be briefly introduced below.

[0027] The accompanying drawings in the following description only relate to some embodiments of the present invention and do not limit the present invention.

[0028] In the accompanying drawings:

[0029] Figure 1 The overall structural schematic diagram of the present invention is shown;

[0030] Figure 2 The overall bottom side structural schematic diagram of the present invention is shown;

[0031] Figure 3 The inner semi-sectional structural schematic diagram of the reaction kettle of the present invention is shown;

[0032] Figure 4 The bottom side structural schematic diagram of the reaction kettle of the present invention is shown;

[0033] Figure 5 The structural schematic diagram of the stirring assembly of the present invention is shown;

[0034] Figure 6 The schematic diagram of the disassembled state of the stirring assembly of the present invention is shown;

[0035] LIST OF REFERENCE NUMERALS

[0036] 1. Reactor; 101. Top cover; 102. Drive shaft; 1021. Positioning short column; 103. Feed pipe; 104. Discharge pipe;

[0037] 2. Driving device;

[0038] 3. Stirring assembly; 301. U-shaped support frame; 302. Arc-shaped clamping plate;

[0039] 4. Locking component; 401. Hexagonal nut; 402. Thrust ring; 403. Auxiliary stirring shaft. Specific embodiments

[0040] To make the objectives, technical solutions and advantages of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present utility model. Apparently, the described embodiments are part of the embodiments of the present utility model, rather than all of them. Based on the described embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.

[0041] Please refer to Figures 1 to 6 , Embodiment 1:

[0042] The present utility model provides a chemical reactor for chemical raw materials, including: reactor 1, top cover 101, drive shaft 102, positioning short column 1021, feed pipe 103, discharge pipe 104, driving device 2, stirring assembly 3, U-shaped support frame 301, arc-shaped clamping plate 302, locking component 4, hexagonal nut 401, thrust ring 402, auxiliary stirring shaft 403. The top opening of the reactor 1 is threadedly fastened with the top cover 101;

[0043] Among them, a drive shaft 102 arranged vertically is rotatably installed through the central part of the top cover 101, and the drive shaft 102 extends and is inserted into the interior of the reaction kettle 1; two circles of positioning short columns 1021 are welded around the drive shaft 102 in an up-and-down corresponding manner; three stirring assemblies 3 are installed around the drive shaft 102, and the stirring assembly 3 as a whole is composed of a U-shaped support frame 301 and an arc-shaped clamping plate 302 welded to the open end of the U-shaped support frame 301. Among them, the arc-shaped clamping plate 302 is in a strip structure, and the upper and lower ends correspond to and are sleeved and matched with two positioning short columns 1021 that are in up-and-down correspondence in the two circles of positioning short columns 1021, and the arc-shaped clamping plate 302 is clamped and matched with the drive shaft 102; two external threads are provided at positions on the drive shaft 102 close to the two circles of positioning short columns 1021, and two locking components 4 are screwed and sleeved on the two threaded sections of the drive shaft 102; the locking component 4 is integrally composed of a hexagonal nut 401 and a top push ring 402 welded concentrically, and the inner circumference of the top push ring 402 is in an inclined section structure; the upper and lower ends of the arc-shaped clamping plate 302 are both in an inclined section structure, and under the action of the threaded advancement of the hexagonal nut 401, the top push ring 402 abuts and contacts one end of the arc-shaped clamping plate 302;

[0044] The three stirring assemblies 3 rotate with the drive shaft 102 to stir the chemical raw materials inside the reaction kettle 1 to promote the reaction of the chemical raw materials; through the principle of the inclined section of the inner circle of the top push ring 402 guiding the inclined surfaces at the upper and lower ends of the arc-shaped clamping plate 302, when the two locking components 4 are screwed and advanced and slide closer to each other, the three arc-shaped clamping plates 302 and the three stirring assemblies 3 can be pressed and sleeved and positioned on the drive shaft 102; the three stirring assemblies 3 are installed in a sliding and detachable manner. Compared with the existing technology of directly welding and integrating the stirring components on the stirring shaft, it is convenient to separately disassemble and replace them after corrosion and damage, without the need to replace the entire stirring shaft and all stirring components as a whole, greatly shortening the maintenance time, reducing the maintenance cost, and improving the operating efficiency of the reaction kettle 1 and the continuity of the production line supporting the reaction kettle.

[0045] Preferably,

[0046] The two locking components 4 are arranged oppositely, and the hexagonal nut 401 is screwed and matched with the threaded section of the drive shaft 102.

[0047] Preferably,

[0048] A row of horizontally arranged stirring rods are welded between the arc-shaped clamping plate 302 and the U-shaped support frame 301.

[0049] Preferably,

[0050] Sealing gaskets are adhesively fixed on the inner arc surface and the long vertical cut surfaces on both sides of the arc-shaped clamping plate 302, and the material of the sealing gaskets is polytetrafluoroethylene.

[0051] Preferably,

[0052] When three arc-shaped clamping plates 302 are circumferentially clamped on the driving shaft 102, the sealing gaskets on the inner side are in extrusion contact with the driving shaft 102, and the sealing gaskets on both sides are sequentially extruded and connected end to end. Most of the driving shaft 102 can be covered and sealed inside it, separating most of the driving shaft 102 from the chemical raw materials, delaying and reducing the anti-corrosion damage of the chemical raw materials to the driving shaft 102, and helping to indirectly extend the service life of the driving shaft 102.

[0053] Preferably,

[0054] The driving device 2 is threadedly fastened at the center position of the top end of the top cover 101, and the top end of the driving shaft 102 is axially connected and driven with the driving device 2.

[0055] On the basis of Embodiment 1, Embodiment 2:

[0056] Three auxiliary stirring shafts 403 are circumferentially welded on the pushing ring 402 of the lower locking member 4. The three auxiliary stirring shafts 403 rotate in the bottom space of the reaction kettle 1, and can stir the chemical raw materials in the bottom space of the reaction kettle 1, which is beneficial to comprehensively and thoroughly stir the chemical raw materials. Moreover, the three auxiliary stirring shafts 403 can also be used as the tightening and loosening force driving members of the lower locking member 4. The lower locking member 4 can be directly twisted and tightened or loosened through the three auxiliary stirring shafts 403, eliminating the trouble of having to use a wrench to twist and tighten the lower locking member 4. Furthermore, the three auxiliary stirring shafts 403 have the effect of serving two purposes with one device, and can save the additional configuration of a tightening and loosening force driving member for the lower locking member 4, which helps to simplify the overall structure of the reaction kettle 1 to a certain extent.

[0057] Preferably,

[0058] Two feeding pipes 103 are symmetrically welded on the outer ring part of the top cover 101, and a discharging pipe 104 is welded at the center position of the bottom of the reaction kettle 1.

[0059] The two feeding pipes 103 are used to feed and load the chemical raw materials into the reaction kettle 1, and the discharging pipe 104 is used to discharge the products generated after the reaction inside the reaction kettle 1.

[0060] Working principle: The two feeding pipes 103 are used to feed and load the chemical raw materials into the reaction kettle 1, the discharging pipe 104 is used to discharge the products generated after the reaction inside the reaction kettle 1, and the three stirring assemblies 3 rotate following the driving shaft 102 to stir the chemical raw materials inside the reaction kettle 1 to promote and accelerate the reaction of the chemical raw materials.

[0061] Through the inclined section structure of the inner ring of the top-pushing ring 402 and the guiding principle of the inclined surfaces at the upper and lower ends of the arc-shaped clamping plate 302, when the two locking components 4 are screwed and pushed closer to each other and slide, the three arc-shaped clamping plates 302 and the three stirring assemblies 3 can be pressed and inserted and positioned on the driving shaft 102;

[0062] When the three arc-shaped clamping plates 302 are circumferentially clamped on the driving shaft 102, the sealing gaskets on the inner side are in extrusion contact with the driving shaft 102, and the sealing gaskets on both sides are sequentially extruded and connected end to end, so that most of the driving shaft 102 can be covered and sealed inside it, separating most of the driving shaft 102 from the chemical raw materials, and delaying and reducing the anti-corrosion damage of the chemical raw materials to the driving shaft 102;

[0063] The three auxiliary stirring shafts 403 rotate in the bottom space of the reaction kettle 1, and can stir the chemical raw materials in the bottom space of the reaction kettle 1. The three auxiliary stirring shafts 403 can also be used as the tightening and loosening force driving components of the lower locking component 4, and the lower locking component 4 can be directly twisted and tightened through the three auxiliary stirring shafts 403.

[0064] In this article, the following points need to be noted:

[0065] 1. The attached drawings of the embodiments of the present invention only relate to the structures involved in the embodiments of the present invention, and other structures can refer to the general design.

[0066] 2. Without conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other to obtain new embodiments.

[0067] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, and all of them should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A chemical reactor for chemical raw materials, comprising: A reaction kettle (1), wherein a top cover (101) is threadedly fastened on the top opening of the reaction kettle (1); The invention is characterized in that a driving shaft (102) arranged vertically is rotatably installed through the central part of the top cover (101), and the driving shaft (102) is inserted into the interior of the reaction kettle (1); two circles of positioning short columns (1021) are welded around the driving shaft (102) in a corresponding manner up and down; three stirring components (3) are installed around the driving shaft (102), and the stirring component (3) as a whole is composed of a U-shaped support frame (301) and an arc-shaped clamping plate (302) welded to the open end of the U-shaped support frame (301), wherein the arc-shaped clamping plate (302) is a long strip structure, and the upper and lower ends of the arc-shaped clamping plate (302) correspond to two positioning short columns (1021) in the two circles of positioning short columns (1021) and are inserted and matched, and the arc-shaped clamping plate (302) is inserted and matched with the driving shaft (102); Two sections of external threads are provided on the driving shaft (102) near the two circles of positioning short columns (1021), and two locking components (4) are screwed onto the two threaded sections of the driving shaft (102); the locking component (4) is composed of a hexagonal nut (401) and a push ring (402) welded concentrically, and the inner circle of the circumference of the push ring (402) is an oblique section structure; the upper and lower ends of the arc-shaped clamping plate (302) are both oblique section structures, and under the threaded pushing action of the hexagonal nut (401), the push ring (402) is in contact with one end of the arc-shaped clamping plate (302).

2. A chemical reactor for chemical raw materials according to claim 1, characterized in that: The two locking components (4) are arranged opposite to each other, and the hexagonal nut (401) is screwed together with the threaded section of the drive shaft (102).

3. A chemical reactor for chemical raw materials according to claim 1, characterized in that: A row of horizontally arranged stirring rods is welded between the arc-shaped clamping plate (302) and the U-shaped supporting frame (301).

4. A chemical reactor for chemical raw materials according to claim 1, characterized in that: Sealing pads are glued and fixed on the inner curved surface of the curved clamping plate (302) and the long vertical cut surfaces on both sides.

5. A chemical reactor for chemical raw materials according to claim 4, characterized in that: When the three arc-shaped clamping plates (302) are clamped around the drive shaft (102), the inner sealing gasket is pressed into contact with the drive shaft (102), and the sealing gaskets on both sides are pressed and connected in sequence end to end.

6. A chemical reactor for chemical raw materials according to claim 1, characterized in that: A driving device (2) is threadedly fastened at the center of the top end of the top cover (101), and the top end of the driving shaft (102) is axially connected to the driving device (2) for transmission.

7. A chemical reactor for chemical raw materials according to claim 1, characterized in that: Three auxiliary stirring shafts (403) are welded around the push ring (402) of the locking component (4) at the lower side.

8. A chemical reactor for chemical raw materials according to claim 1, characterized in that: Two feeding pipes (103) are symmetrically welded to the outer ring portion of the top cover (101), and a discharge pipe (104) is welded to the center of the bottom of the reaction kettle (1).

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