Integrated device for primary dissolution and secondary dilution and dissolution of chemical reaction materials

Abstract

The utility model discloses a chemical reaction material primary dissolution and secondary dilution and dissolution integrated device which comprises a primary dissolution kettle, and the discharge end of the primary dissolution kettle is communicated with a secondary dissolution and dilution kettle; the primary dissolving kettle is assembled and connected with a primary dissolving stirring mechanism, the primary dissolving stirring mechanism comprises a dissolving motor, the dissolving motor is assembled and connected with a stirring shaft rotationally connected into the primary dissolving kettle, and the stirring shaft is assembled and connected with a suspended material dissolving mechanism and a settled material dissolving mechanism which are symmetrically arranged up and down; the upper ring seat is fixedly connected to the upper end of the stirring shaft, and a plurality of upper curved dissolving plates are fixedly connected to the bottom of the upper ring seat; the settled material dissolving mechanism comprises a lower ring seat fixedly connected to the lower end of the stirring shaft, and the top of the lower ring seat is fixedly connected with a plurality of lower curved dissolving plates. According to the mode, primary dissolution and secondary dissolution are realized, and the dissolution speed and the dissolution effect are good.

Description

Technical Field

[0001] The utility model belongs to the technical field of dilution and dissolution of chemical reaction materials, in particular to a device integrating primary dissolution and secondary dilution and dissolution of chemical reaction materials. Background Art

[0002] Chemical reactions are essential steps in chemical production. They primarily utilize facilities such as reactors and piping systems to pump reactants into the reactor to produce the desired product. Chemical reactions are widely used in production and everyday life, and many non-natural materials, such as polymers, are produced through chemical reactions.

[0003] During a chemical reaction, materials need to go through many production steps, including reaction, blending, dissolution, purification, and drying. Dissolution is the most common production step in chemical reactions. This is primarily performed in a blending kettle, including initial dissolution and secondary dissolution.

[0004] The efficiency of initial dissolution is crucial for determining the effectiveness of subsequent secondary dissolution. Currently, during the primary dissolution of materials, especially those with low solubility, the material does not fully dissolve during the initial dissolution process, resulting in a turbid material. This turbid material contains a large amount of undissolved agglomerates and particulates, and the particle size of these agglomerates and particulates is crucial for determining the effectiveness of subsequent secondary dissolution.

[0005] The dissolving and stirring mechanical structures currently used in dissolving kettles, such as stirring paddles and rods, can stir the material solution system, but their stirring force is mostly located at the bottom of the kettle. The agglomerated materials and granular materials after stirring, dissolving and refining are often distributed in different positions according to their weight in the material system, especially when the system is in a stirring state. This is reflected in the fact that large agglomerates and large particles are distributed at the bottom of the system, while small particles and small agglomerates after dissolution and refinement are easily distributed to the upper layer during stirring. However, the stirring machinery currently used in stirring and dissolving kettles can only stir and refine the materials that have settled at the bottom layer. However, the material lumps and large particles that are suspended after material refinement or float to the upper layer with the solvent system are difficult to fully stir and refine, resulting in low uniformity of the material system and difficulty in fully dissolving and clarifying the system through secondary dilution and dissolution. Utility Model Content

[0006] Based on the above background, the purpose of the present invention is to provide an integrated device for primary dissolution and secondary dilution and dissolution of chemical reaction materials.

[0007] In order to achieve the above objectives, the present invention adopts the following technical solutions:

[0008] A device for primary dissolution and secondary dilution and dissolution of chemical reaction materials, comprising a primary dissolution kettle and a secondary dissolution and dilution kettle, wherein the primary dissolution kettle is provided with a first feed pipe and a feeding port, and the secondary dissolution and dilution kettle is provided with a second feed pipe, a feeding port, and a lower discharge pipe. The discharge end of the primary dissolution kettle is connected to the second feed pipe via a pump pipe, and the primary dissolution kettle is equipped with a primary dissolution and stirring mechanism, which comprises a dissolution motor at the top of the kettle, the dissolution motor being equipped with a stirring shaft, the stirring shaft extending into the primary dissolution kettle, and the stirring shaft being equipped with a suspended material dissolution mechanism and a settled material dissolution mechanism symmetrically arranged above and below.

[0009] The suspension dissolving mechanism includes an upper ring seat fixedly connected to the upper end of the stirring shaft, and a plurality of upper curved dissolving plates are fixedly connected to the bottom of the upper ring seat;

[0010] The sediment dissolving mechanism comprises a lower ring seat fixedly connected to the lower end of the stirring shaft, and a plurality of lower curved dissolving plates are fixedly connected to the top of the lower ring seat;

[0011] The upper curved dissolving plate and the lower curved dissolving plate have the same shape, and both include a straight portion and a curved portion. The straight portion and the curved portion are integrally formed, and the curved portion is bent outward.

[0012] Preferably, a connecting ring seat is provided between the upper curved dissolving plate and the lower curved dissolving plate, and the curved portions on the upper curved dissolving plate and the lower curved dissolving plate are welded to the connecting ring seat.

[0013] Preferably, the inner side walls of the upper ring seat and the lower ring seat are fixedly connected to the side wall of the stirring shaft through a plurality of inner pin fixing rods.

[0014] Preferably, the secondary dissolution and dilution kettle is equipped with a material dilution and dissolution-aiding mechanism;

[0015] The material dilution and dissolution-aiding mechanism includes a dilution motor assembled and connected to the top of the secondary dissolution and dilution kettle, the dilution motor is assembled and connected to a stirring shaft, and the stirring shaft is assembled and connected to a plurality of dilution plates arranged to branch outwards, and a plurality of tooth-shaped openings are opened on both sides of the dilution plates, and the tooth-shaped openings form dilution teeth;

[0016] The top and bottom of the dilution plate are respectively detachably connected with mounting parts;

[0017] The mounting piece on the top of the dilution plate is fixedly connected to the stirring shaft rod through an inner short rod, and the mounting piece at the bottom is fixedly connected to the stirring shaft rod through an inner long rod.

[0018] Preferably, the mounting member is a U-shaped mounting plate, the end portion of the dilution plate is positioned within the U-shaped cavity of the U-shaped mounting plate, and the dilution plate is fastened to the U-shaped mounting plate by fastening bolts.

[0019] Preferably, the lower part of the stirring shaft is fixedly connected to an annular central base, and a plurality of inner material plates are fixedly connected to the upper part of the annular central base. The inner material plates are arranged upward, and the top ends of the inner material plates are fixedly connected to the dilution material plates.

[0020] Preferably, the annular center base is fixedly connected to the stirring shaft via an internal fixed connecting rod, one end of the internal fixed connecting rod is fixedly connected to the lower part of the stirring shaft, and the other end is fixedly connected to the annular center base;

[0021] The feeding port is assembled and connected with a cover body.

[0022] The utility model has the following beneficial effects:

[0023] 1. The upper curved dissolving plate and the lower curved dissolving plate realize the layered stirring and dissolving of the upper and lower layers of the liquid. The lower curved dissolving plate-lower ring seat structure can fully refine the material system with large agglomeration and large particle size. The material stirred to the suspended state above can be further refined by the upper curved dissolving plate-upper ring seat structure.

[0024] 2. The upper curved dissolving plate and the lower curved dissolving plate distributed in an annular manner are integrated into a reinforced structure by connecting the ring seat. This method not only has a strong stirring force, but also has a high efficiency in impacting and refining the material.

[0025] 3. During the secondary dilution and dissolution process, the dilution plate is tilted to improve solubility and fully refine the particles of difficult-to-dissolve inclusions. The edges of the dilution tooth structure generate shear force, which breaks down the material inclusions and thus improves dissolution. In addition, the tilted dilution plate has a large stirring surface and a strong stirring force, which greatly increases the dissolution rate of the material system.

[0026] 4. The inner material plate further increases the dissolution effect of the material that has not been fully dissolved, shortens the time of dissolution from turbidity to clarity, and at the same time improves the rotation stability of the dilution material plate and reduces its deformation. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;

[0028] Figure 2 This is a structural diagram of the primary dissolving and stirring mechanism in an embodiment of the present utility model;

[0029] Figure 3 This is a structural diagram of the primary dissolving and stirring mechanism in another embodiment of the present utility model;

[0030] Figure 4 This is a structural diagram of the material dilution and dissolution-aiding mechanism in an embodiment of the present utility model;

[0031] Figure 5 This is a structural diagram of the dilution tooth structure in an embodiment of the present utility model;

[0032] Figure 6 This is a schematic structural diagram of the mounting member in an embodiment of the present utility model;

[0033] Figure 7 This is a schematic structural diagram of the inner material plate in an embodiment of the present utility model;

[0034] Figure 8 For the embodiment of the utility model Figure 4 A structural diagram from another perspective.

[0035] In the figure: 1-primary dissolution kettle, 2-secondary dissolution dilution kettle, 3-pump pipe, 4-primary dissolution stirring mechanism, 5-material dilution and dissolution aid mechanism, 6-first feed pipe, 7-second feed pipe, 8-feeding port, 9-lower discharge pipe, 10-stirring shaft, 11-inner pin fixing rod, 12-stirring shaft rod, 41-dissolution motor, 42-suspended material dissolution mechanism, 43-settled material dissolution mechanism, 44-connecting ring seat, 421-upper curved dissolution plate, 422-upper ring seat, 431-lower curved dissolution plate, 432-lower ring seat, 51-dilution motor, 52-dilution material plate, 53-annular center base, 54-inner material plate, 521-inner long rod, 522-dilution material teeth, 523-inner short rod, 524-U-shaped mounting plate, 525-inner fixed connecting rod. DETAILED DESCRIPTION

[0036] Example 1

[0037] like Figure 1-8 As shown, a device for primary dissolution and secondary dilution of chemical reaction materials includes a primary dissolution vessel 1, the discharge end of which is connected to a secondary dissolution and dilution vessel 2. The material is initially dissolved in the primary dissolution vessel 1. After the initial dissolution, the material system has high turbidity and requires further dilution and dissolution. After the initial dissolution, the material is pumped into the secondary dissolution and dilution vessel 2 for secondary dissolution.

[0038] In order to achieve full dissolution and dispersion of the material system into a supersaturated material system during the initial dissolution process, and to fully refine the material agglomerates and material particles that are not fully dissolved in the material to facilitate subsequent dilution and dissolution, the internal structure of the primary dissolution tank 1 has been improved.

[0039] Specifically, the primary dissolving kettle 1 is equipped with a primary dissolving and stirring mechanism 4, which includes a dissolving motor 41. The dissolving motor 41 is equipped with a stirring shaft 10, which extends into the primary dissolving kettle 1 (the connection between the motor output end and the stirring shaft is a prior art, and whether to use a reducer or a motor with a built-in frequency converter is selected according to actual needs and the required speed). The stirring shaft is equipped with a suspended material dissolving mechanism 42 and a settled material dissolving mechanism 43, which are symmetrically arranged up and down.

[0040] The purpose of designing the suspended material dissolving mechanism 42 and the sedimentation material dissolving mechanism 43 at different heights is to refine the material into suspended particles after part of the material is refined during the initial dissolution process, and to further refine the part of the material by following the solvent to the top of the material system during the stirring process, so as to further increase the solubility and the dispersion of the material, thereby facilitating the refinement of the material into suspended particles and facilitating subsequent dilution and dissolution.

[0041] Specifically, the suspended material dissolving mechanism 42 includes an upper ring seat 422 fixedly connected to the upper end of the stirring shaft, with a plurality of upper curved dissolving plates 421 fixedly connected to the bottom of the upper ring seat 422. Similarly, the above-mentioned sediment dissolving mechanism 43 includes a lower ring seat 432 fixedly connected to the lower end of the stirring shaft, with a plurality of lower curved dissolving plates 431 fixedly connected to the top of the lower ring seat 432. The upper curved dissolving plates 421 and the lower curved dissolving plates 431 are formed by bending and machining 65 cm long stainless steel plates. The specific shapes are as follows:

[0042] The upper and lower curved dissolving plates 421 and 431 each include a straight portion and a curved portion (the straight portions are welded to the corresponding upper and lower ring seats 422 and 432). The straight and curved portions are integrally formed, with the curved portions being bent outward. The curved portions enhance the stirring surface and the stirring power of the material displacing system.

[0043] During the stirring process, the rotating suspended material dissolving mechanism 42 and the settled material dissolving mechanism 43 put the upper and bottom layers of the liquid into a stirring and dissolving state, and the functions of the two are different. The lower curved dissolving plate 431-lower ring seat 432 structure is used to fully refine the material system with large agglomeration and large particle size (this type of material has a large weight and is easy to settle at the bottom of the kettle). After that, the solution system in the stirring state is stirred to the upper suspended state, and then it is further refined under the action of the upper curved dissolving plate 421-upper ring seat 422 structure.

[0044] As the material follows the object system in the stirring state, the material, especially the agglomerated material and granular material, is continuously impacted and refined by the upper curved dissolving plate 421-upper ring seat 422 structure and the lower curved dissolving plate 431-lower ring seat 432 structure during the up and down movement of the material system. Then, in the initial dissolution process, the material is fully dissolved and the insoluble material is fully refined, which facilitates subsequent dissolution.

[0045] A connecting ring seat 44 is fixedly connected between the upper curved dissolving plate 421 and the lower curved dissolving plate 431. The curved portions of the upper curved dissolving plate 421 and the lower curved dissolving plate 431 are welded to the connecting ring seat 44. The connecting ring seat 44 connects the annular upper curved dissolving plate 421 and the lower curved dissolving plate 431 to form a reinforced structure. This method not only has a strong stirring force, but also has a high efficiency in impacting and refining the material.

[0046] The inner side walls of the upper ring seat 422 and the lower ring seat 432 are fixedly connected to the side wall of the stirring shaft through a plurality of inner pin fixing rods 11.

[0047] Example 2

[0048] like Figure 1-8 As shown, this embodiment builds on the structure of Example 1. To fully dissolve the material system after the initial dissolution, the secondary dissolution and dilution vessel 2 adopts the following structural design: The main structure of the secondary dissolution and dilution vessel 2 is a conventional dissolution vessel structure known in the prior art. It is connected to the primary dissolution vessel 1 for pumping. The primary dissolution vessel 1 is equipped with a first feed pipe 6 and a feed port 8, while the secondary dissolution and dilution vessel 2 is equipped with a second feed pipe 7, a feed port 8, and a lower discharge pipe 9. During the primary dissolution, the first feed pipe 6 pumps solvent. The bottom of the primary dissolution vessel 1 is connected to a pump pipe 3, which (with a valve attached) is connected to the second feed pipe 7 via a connecting flange. The feed port 8 is located at the top of both the primary dissolution vessel 1 and the secondary dissolution and dilution vessel, and is attached to a lid. The bottom of the secondary dissolution and dilution vessel 2 is connected to a lower discharge pipe 9, which is attached to a valve. First, the material is initially dissolved in the primary dissolution vessel 1 into a turbid liquid, which is then pumped through a pump pipe into the secondary dissolution and dilution vessel. At this point, a solvent is pumped into the primary dissolution vessel 1 to clean the interior. The cleaning solvent is then pumped into the secondary dissolution and dilution vessel 2 as the dilution solvent (the volume of the secondary dissolution and dilution vessel is 1.5 times that of the primary dissolution vessel). The material is pumped through a conventional pump pipe 3, or, according to existing techniques, the secondary dissolution and dilution vessel 2 is pre-evacuated before the material is pumped.

[0049] In order to fully dissolve the material system to a clear state during the secondary dilution and dissolution process, the secondary dissolution and dilution kettle 2 is equipped with a material dilution and dissolution-aiding mechanism 5 .

[0050] The material dilution and dissolution-aiding mechanism 5 includes a dilution motor 51 mounted on the top of the secondary dissolution and dilution vessel 2. This motor is connected to a stirring shaft (the connection structure also uses the primary dissolution and stirring mechanism). The stirring shaft is attached to a number of outwardly branching dilution plates 52 (the dilution plates 52 are 1.8m long steel plates). These plates are equipped with a number of dilution teeth. Specifically, the sidewalls of the dilution plates 52 are each provided with a number of tooth-shaped openings, with adjacent openings forming dilution teeth 522. The openings are cut using a cutting device, and the spacing between adjacent openings is maintained at 5cm.

[0051] The dilution plate 52 is tilted, with its upper end tilted inward and its lower end tilted outward (the angle of the dilution plate 52's outward bifurcation is set at 60 degrees). This allows the bifurcated and dispersed dilution plate 52 to increase the solubility of suspended materials within the system and further refine difficult-to-dissolve inclusion particles (including those formed by emulsification, material encapsulation with solvent, and dissolved inclusion particles). This is demonstrated by the tooth-shaped openings formed on the dilution plate 52, which form a dilution tooth structure. The dilution tooth structure impacts material particles, and the shear force generated at its edges breaks down the inclusions, thereby enhancing dissolution. Furthermore, the tilted dilution plate 52 creates a large stirring surface and a strong stirring force, significantly increasing the dissolution rate of the material system.

[0052] The dilution plate 52 is removably connected to mounting members B at its top and bottom. Specifically, these mounting members are U-shaped mounting plates 524. The ends of the dilution plate 52 are positioned within the U-shaped cavity of the U-shaped mounting plate 524. The U-shaped mounting plate 524 is secured to the dilution plate 52 via a number of fastening bolts. This removable connection facilitates replacement if the dilution plate 52 becomes deformed. The top mounting member of the dilution plate 52 is fixedly connected to the stirring shaft 12 via a short inner rod 523, while the bottom mounting member is fixedly connected to the stirring shaft 12 via a long inner rod 521.

[0053] Furthermore, an annular central base 53 is fixedly connected to the lower end of the stirring shaft 12. Several inner plates 54 are fixedly connected to the top surface of the annular central base 53. These plates 54 are positioned upward (diagonally upward), with their top ends fixedly connected to the dilution plates 52. Specifically, the bottoms of the plates 54 are welded to the top of the annular central base 53, while the tops of the plates 54 are welded to the sidewalls of the dilution plates 52. The annular central base 53 is fixedly connected to the stirring shaft 12 via an internal fixed connecting rod 525. One end of the internal fixed connecting rod 525 is fixedly connected to the lower portion of the stirring shaft and the other end is fixedly connected to the annular central base 53.

[0054] During operation, as the stirring shaft 12 rotates, the rotating inner plate 54 further dissolves any remaining incompletely dissolved material. The inner plate 54 is fixed to the center of the diluting plate 52, improving the diluting plate's stability during rotation and reducing its deformation. Furthermore, the integrated design of the inner plate and diluting plate 52 forms a reinforced dissolution unit, fully dissolving suspended and difficult-to-dissolve material particles. This reduces the time it takes for the solution to transition from turbidity to clarity, and the volume of the clarified liquid, after sampling and testing, meets predetermined standards.

Claims

1. A device for primary dissolution and secondary dilution dissolution of chemical reaction materials, comprising a primary dissolution kettle (1) and a secondary dissolution dilution kettle (2), wherein the primary dissolution kettle (1) is provided with a first feed pipe (6) and a feed port (8), and the secondary dissolution dilution kettle (2) is provided with a second feed pipe (7), a feed port (8), and a lower discharge pipe (9), and the discharge end of the primary dissolution kettle (1) is connected to the second feed pipe (7) through a pump pipe (3), and is characterized in that: The primary dissolving kettle (1) is equipped with a primary dissolving and stirring mechanism (4), which includes a dissolving motor (41) at the top of the kettle. The dissolving motor (41) is equipped with a stirring shaft (10), which extends into the primary dissolving kettle (1). The stirring shaft (10) is equipped with a suspended material dissolving mechanism (42) and a sedimentation material dissolving mechanism (43) which are symmetrically arranged in an upper and lower direction. The suspension dissolving mechanism (42) comprises an upper ring seat (422) fixedly connected to the upper end of the stirring shaft, and a plurality of upper curved dissolving plates (421) are fixedly connected to the bottom of the upper ring seat (422); The sediment dissolving mechanism (43) comprises a lower ring seat (432) fixedly connected to the lower end of the stirring shaft, and a plurality of lower curved dissolving plates (431) are fixedly connected to the top of the lower ring seat (432); The upper curved dissolving plate (421) and the lower curved dissolving plate (431) have the same shape, both comprising a straight portion and a curved portion, the straight portion and the curved portion being integrally formed, and the curved portion being bent outward.

2. The integrated device for primary dissolution and secondary dilution and dissolution of chemical reaction materials according to claim 1, characterized in that: A connecting ring seat (44) is provided between the upper curved dissolving plate (421) and the lower curved dissolving plate (431), and the curved portions on the upper curved dissolving plate (421) and the lower curved dissolving plate (431) are welded to the connecting ring seat (44).

3. The integrated device for primary dissolution and secondary dilution and dissolution of chemical reaction materials according to claim 1, characterized in that: The inner side walls of the upper ring seat (422) and the lower ring seat (432) are respectively fixedly connected to the side wall of the stirring shaft via a plurality of inner pin fixing rods (11).

4. The integrated device for primary dissolution and secondary dilution and dissolution of chemical reaction materials according to claim 1, characterized in that: The secondary dissolution and dilution kettle (2) is equipped with a material dilution and dissolution-aiding mechanism (5); The material dilution and dissolution-aiding mechanism (5) comprises a dilution motor (51) assembled and connected to the top position of the secondary dissolution and dilution kettle (2), the dilution motor (51) is assembled and connected to a stirring shaft (12), and the stirring shaft (12) is assembled and connected to a plurality of dilution plates (52) arranged to branch outwards, and a plurality of tooth-shaped openings are opened on both sides of the dilution plates (52), and dilution teeth (522) are formed between the tooth-shaped openings; The top and bottom of the dilution plate (52) are respectively detachably connected with mounting parts; The mounting piece at the top of the dilution plate (52) is fixedly connected to the stirring shaft (12) via an inner short rod (523), and the mounting piece at the bottom is fixedly connected to the stirring shaft (12) via an inner long rod (521).

5. The integrated device for primary dissolution and secondary dilution and dissolution of chemical reaction materials according to claim 4, characterized in that: The mounting member is a U-shaped mounting plate (524), the end position of the dilution plate (52) is limited in the U-shaped cavity of the U-shaped mounting plate (524), and the dilution plate (52) and the U-shaped mounting plate (524) are fastened by fastening bolts.

6. The integrated device for primary dissolution and secondary dilution and dissolution of chemical reaction materials according to claim 4, characterized in that: The lower part of the stirring shaft (12) is fixedly connected to an annular central base (53), and the upper part of the annular central base (53) is fixedly connected to a plurality of inner material plates (54). The inner material plates (54) are arranged upward, and the top ends of the inner material plates (54) are fixedly connected to the dilution plate (52).

7. The integrated device for primary dissolution and secondary dilution and dissolution of chemical reaction materials according to claim 6, characterized in that: The annular central base (53) is fixedly connected to the stirring shaft (12) via an internal fixed connecting rod (525), one end of the internal fixed connecting rod (525) is fixedly connected to the lower part of the stirring shaft, and the other end is fixedly connected to the annular central base (53).

8. The integrated device for primary dissolution and secondary dilution and dissolution of chemical reaction materials according to any one of claims 1 to 7, characterized in that: The feeding port (8) is assembled and connected with a cover.

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