Water bath heating device for palladium chloride concentration and crystallization equipment

Abstract

The utility model discloses a water bath heating device for palladium chloride concentration and crystallization equipment, which is characterized in that the water bath heating device is arranged on a rack and is used for heating a flask, a machine head is arranged on the rack, one side of the machine head is connected with the flask, and a water bath heating structure is arranged at the lower end of the flask; the water bath heating structure comprises a heating furnace used for heating liquid, an inclined annular plate is arranged on the upper edge of the heating furnace in an inwards inclined mode, a plurality of output pumps are arranged on the inner side of the inclined annular plate, and a center ball is arranged in the middle of a furnace body of the heating furnace and connected with the output pumps through a plurality of pipelines. According to the utility model, the part, which is not in direct contact with water, in the flask section can be well heated, so that the purpose of uniform heating is achieved.

Description

Technical Field

[0001] The utility model relates to a palladium chloride production device, in particular to a water bath heating device for a palladium chloride concentration and crystallization device. Background Art

[0002] Palladium chloride is an inorganic compound used to prepare special catalysts and molecular sieves. In the preparation process, palladium dichloride diamine is complexed with ammonia water, and then reduced by hydrazine hydrate and filtered to obtain a crude product. After chlorination leaching and secondary filtration, the filtered product is concentrated and crystallized to obtain palladium chloride. During the concentration and crystallization process, the solution is mainly evaporated and crystallized by a rotary evaporator. The filtered solution is introduced into a flask, and the flask is rotated at a constant speed and heated. The volatile solvent is continuously distilled under a reduced pressure environment to obtain palladium chloride.

[0003] During the heating process of the flask, water bath heating is mostly used. However, in fact, not all parts of the flask filled with the solution will come into contact with the water in the water bath heating. A large part of the solution in the whole flask does not contact the water, which will lead to poor constant temperature heating effect on the solution, affecting the overall evaporation effect and thus the concentration and crystallization effect. Summary of the Utility Model

[0004] The utility model provides a water bath heating device for a palladium chloride concentration and crystallization device, enabling the parts in the flask section that are not in direct contact with water to also receive a good heating effect, achieving the purpose of uniform heating, and effectively solving the above problems.

[0005] The utility model is implemented as follows:

[0006] A water bath heating device for a palladium chloride concentration and crystallization device includes: the water bath heating device is arranged on a frame and used for heating a flask. A machine head is arranged on the frame, and a flask is connected to one side of the machine head. A water bath heating structure is arranged at the lower end of the flask.

[0007] The water bath heating structure includes a heating furnace for heating a liquid. An inclined ring plate is inwardly inclined at the upper edge of the heating furnace. A number of output pumps are installed inside the inclined ring plate. A central ball is arranged in the middle of the heating furnace body, and the central ball is connected to the number of output pumps through a number of pipelines.

[0008] As a further improvement, the inclined ring plate is arranged at an interval from the flask, and the boiling water flowing to the inclined ring plate after the heating furnace is heated then slides down.

[0009] As a further improvement, the inclination angle of the inclined ring plate with respect to the horizontal plane is 30 - 45°.

[0010] As a further improvement, the output pump is connected to a nozzle, and the nozzle points to the flask.

[0011] As a further improvement, the flask includes a straight section connected to the machine head. On the side of the straight section away from the machine head, there is a flask section connected. Inside the flask section, there is a cantilevered accommodating structure. The cantilevered accommodating structure includes an installation cylinder arranged inside the flask section. The installation cylinder is closely attached to the inner side of the straight part of the flask section. The end of the installation cylinder is connected to a storage rack. The storage rack is cantilevered in the circular cavity of the flask section. Inside the storage rack, there are anti-boiling particles filled. The storage rack is immersed in the liquid in the flask section. When the flask section rotates, it drives the storage rack and the anti-boiling particles in the storage rack to rotate.

[0012] As a further improvement, the installation cylinder includes a reduced-diameter pipe fixedly connected to the flask section. On the other side of the reduced-diameter pipe, there is a flow-through pipe. A number of holes are opened on the outer sides of the reduced-diameter pipe and the flow-through pipe. The end of the flow-through pipe is connected to the storage rack.

[0013] As a further improvement, the storage rack includes a lower sealing bowl connected to the flow-through pipe. Above the lower sealing bowl, there is an upper sealing bowl locked. The lower sealing bowl and the upper sealing bowl form a space for accommodating anti-boiling particles.

[0014] The beneficial effects of the present utility model are:

[0015] When performing water bath heating on the flask section, not all parts of the flask section with solution in it are in contact with water. A large part of it is not in contact with water. Therefore, through the additional water bath heating structure of the present utility model, the water at the bottom of the heating furnace can be pumped upwards and pressured by the output pump on the inclined ring plate to the outer wall of the flask section, so that the parts of the flask section that are not directly in contact with water can also receive a better heating effect, achieving the purpose of uniform heating.

[0016] During the rotation of the flask, the liquid inside it will form a liquid film, thereby increasing the heating area of the liquid and making the evaporation more sufficient. However, if anti-boiling particles are added to the flask, the liquid film will be damaged during the rotation of the flask, affecting the heating area. Therefore, on the basis of the split connection structure of the present utility model, an installation cylinder is arranged at the position of the sealing net. The installation cylinder extends into the flask through a storage rack. The anti-boiling particles are stored in the storage rack. The storage rack is in a cantilevered state inside the flask, that is, it does not contact any inner wall surface of the flask. When the storage rack and the installation cylinder rotate with the flask, the anti-boiling particles will always be in contact with the solution in the flask at the bottom of the entire storage rack, so that while being able to prevent the liquid from boiling, the phenomenon of damaging the liquid film in the flask can be avoided.

[0017] The anti-boiling particles are stored in the storage rack. In order to allow the liquid to come into contact with the anti-boiling particles, the surface of the storage rack in the present utility model is provided with a lower sealing bowl and an upper sealing bowl with holes. The lower sealing bowl and the upper sealing bowl are in a fixed and openable / closable manner, thus facilitating the filling and replacement of the anti-boiling particles. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments. It should be understood that the following drawings only show some embodiments of the present utility model, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other relevant drawings can also be obtained based on these drawings.

[0019] Figure 1 is a schematic structural diagram of a water bath heating device for a palladium chloride concentration crystallization device of the present utility model.

[0020] Figure 2 is a three-dimensional structural diagram (first perspective) of the cooperation between the water bath heating device for the palladium chloride concentration crystallization device of the present utility model and the concentration crystallization device.

[0021] Figure 3 is a three-dimensional structural diagram (second perspective) of the cooperation between the water bath heating device for the palladium chloride concentration crystallization device of the present utility model and the concentration crystallization device.

[0022] Figure 4 is the present utility model Figure 3 top view structural diagram.

[0023] Figure 5 is the present utility model Figure 4 cross-sectional view at A-A in.

[0024] Figure 6 is the present utility model Figure 5 enlarged view of area B in.

[0025] Figure 7 is a schematic structural diagram of the cooperation between the flask of the present utility model and the split connection structure.

[0026] Figure 8 is the present utility model Figure 7 top view structural diagram.

[0027] Figure 9 is the present utility model Figure 8 isometric sectional view at C-C in.

[0028] In the figure:

[0029] Frame 10, machine head 20, flask 30, straight section 31, flask section 32, water bath heating structure 40, heating furnace 41, inclined ring plate 42, output pump 43, central ball 44, transfer pipe 50, feed pipe 60, condenser 70, collection bottle 80, split connection structure 1, sealing cylinder 101, inner plugging section 1011, flat mouth section 1012, sealing net 102, sealing rubber sleeve 103, large sealing part 1031, small sealing part 1032, pressure dividing component 104, first bearing 1041, second bearing 1042, shaping cylinder 1043, first fixing frame 10431, second fixing frame 10432, extension bracket 1044, installation cylinder 201, reduced diameter pipe 2011, circulation pipe 2012, storage rack 202, lower sealing bowl 2021, upper sealing bowl 2022. Specific embodiments

[0030] To make the purpose, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some, but not all, of the embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model. Therefore, the detailed description of the embodiments of the present utility model provided in the accompanying drawings is not intended to limit the scope of the present utility model to be protected, but merely represents the selected embodiments of the present utility model. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

[0031] In the description of the present utility model, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more unless otherwise specifically defined.

[0032] Refer to Figures 1 to 9As shown, a water bath heating device for a palladium chloride concentration and crystallization device is applied to the palladium chloride concentration and crystallization device. The palladium chloride concentration and crystallization device includes a frame 10, a machine head 20 is arranged on the frame 10, a flask 30 is connected to one side of the machine head 20, a water bath heating structure 40 is arranged at the lower end of the flask 30, a transfer pipe 50 is connected to the other side of the machine head 20, the transfer pipe 50 communicates with a feed pipe 60, a condenser 70 is arranged at the upper end of the feed pipe 60, and the lower end of the feed pipe 60 is connected to a collection bottle 80. It is characterized in that the concentration and crystallization device further includes: a split connection structure 1. The flask 30 includes a straight section 31 connected to the machine head 20, a flask section 32 is connected to the side of the straight section 31 away from the machine head 20, the diameter of the straight part of the flask section 32 is smaller than that of the straight section 31. The split connection structure 1 includes a sealing cylinder 101 nested outside the straight part of the flask section 32, a sealing net 102 is arranged at the opening of the flask section 32, a closed rubber sleeve 103 wraps the outside of the straight section 31 and the flask section 32, a pressure dividing component 104 is movably sleeved outside the closed rubber sleeve 103, and the bottom of the pressure dividing component 104 extends and is fixed to the outside of the water bath heating structure 40. When the machine head 20 rotates, it drives the straight section 31 to rotate, and drives the flask section 32 to rotate inside the pressure dividing component 104 through the straight section 31; a cantilevered accommodation structure, including an installation cylinder 201 arranged inside the sealing net 102, the installation cylinder 201 is closely attached to the inside of the straight part of the flask section 32, the end of the installation cylinder 201 is connected to a storage rack 202, the storage rack 202 is cantilevered in the circular cavity of the flask section 32, the inside of the storage rack 202 is filled with anti-boiling particles, the storage rack 202 is immersed in the liquid of the flask section 32, and when the flask section 32 rotates, it drives the storage rack 202 and the anti-boiling particles in the storage rack 202 to rotate.

[0033] During the whole concentration and crystallization process, first, the palladium chloride feed liquid is added into the flask 30 through the feed pipe 60 via the transfer pipe 50. Then, the internal environment of the whole flask 30 is decompressed, and at the same time, the machine head 20 is driven to rotate. At the same time, the water bath heating structure 40 is started to evaporate the feed liquid in the flask 30. The evaporated gas flows through the condenser 70, is cooled and then flows into the collection bottle 80 and is discharged to obtain palladium chloride.

[0034] Among them, the sealing net 102 is a filter screen plate, which can filter out some impurity substances.

[0035] In existing concentration crystallization equipment, the anti-boiling substances are directly located in the flask 30, and the flask 30 is directly connected to the machine head 20. In this way, during the operation of novices, if the machine head 20 is in communication with the atmosphere before it stops running, the flask 30 is prone to faults such as falling off and dropping. Therefore, in the present utility model, the original integral flask 30 is segmented into a straight section 31 and a flask section 32, and a split connection structure 1 is provided at the connection position between the two. First, a sealing cylinder 101 is provided on the outer side of the straight part of the flask section 32, so that the flask section 32 can be closely fitted with the outer side of the straight section 31. At the same time, the outer sides of the entire straight section 31 and the flask section 32 are fixed by a sealing rubber sleeve 103, so that the two can be closely fitted together without air leakage, and the sealing rubber sleeve 103 is pressurized by a pressure dividing component 104. Thus, even if the straight section 31 is separated from the machine head 20, the entire straight section 31 and the flask section 32 can be tightly supported by the pressure dividing component 104, thereby preventing the flask 30 from directly falling off and being damaged. Even if the straight section 31 and the flask section 32 are forcibly separated, the flask section 32 can also be supported by the pressure dividing component 104, achieving double protection.

[0036] In order to enable the flask section 32 with a smaller diameter to cooperate with the straight section 31 and thus prevent the evaporated gas from leaking, the sealing cylinder 101 of this embodiment includes an inner sealing section 1011 located between the straight section 31 and the straight part of the flask section 32. An outer flat section 1012 is provided at the outer edge of the opening of the flask section 32. The flat section 1012 and the inner sealing section 1011 are integrally formed. An integrated inner sealing section 1011 and flat section 1012 are provided on the outer side of the straight part of the flask section 32, that is, between the flask section 32 and the straight section 31. Thus, after the flask section 32 is inserted into the straight section 31, it is not easy to slide and let air through. Even if the inner sealing section 1011 is subjected to a pulling force, it will also involve the flat section 1012, greatly improving the overall sealing performance.

[0037] After the sealing cylinder 101 is provided, even if a good sealing effect is formed between the inner sides of the flask section 32 and the straight section 31, if only this section is sealed, it is very easy to have an air leakage phenomenon after the sealing part of this section ages. Therefore, the sealing rubber sleeve 103 of this embodiment is of a convex structure. The sealing rubber sleeve 103 includes a large sealing part 1031 sleeved on the outer side of the straight section 31 and a small sealing part 1032 sleeved on the outer side of the straight part of the flask section 32. On the basis of the sealing cylinder 101, the sealing rubber sleeve 103 is provided. Through the step-by-step fixation of the two end sealing parts of the sealing rubber sleeve 103, and the two sealing parts are connected, the outer side is sealed, and combined with the inner side sealing to form a two-stage sealing. Even if one part ages after long-term use, it is not easy to have a large-scale leakage phenomenon.

[0038] During the entire concentration process, a reduced-pressure state needs to be maintained inside the device. Subsequently, the head 20 is started to rotate the entire flask 30. If positive pressure is directly introduced without stopping the head 20, it is very easy for the flask 30 to fall out. Therefore, the pressure-dividing component 104 of this embodiment includes a first bearing 1041 and a second bearing 1042 sleeved outside the large closed portion 1031 and the small closed portion 1032. A fixed cylinder 1043 is fixed to the outside of the first bearing 1041 and the second bearing 1042. The fixed cylinder 1043 is extended and fixed to the outside of the water-bath heating structure 40 through an extension bracket 1044. On the basis of the sealing cylinder 101 and the sealing rubber sleeve 103, two bearings are provided to fix two tubes with different diameters respectively. Outside the two bearings, a fixed cylinder 1043 is separately provided for protective fixation. The fixed cylinder 1043 is located in the middle of the flask section 32 and the straight section 31. Thus, whether the straight section 31 itself is separated from the head 20 or the straight section 31 is separated from the flask section 32, it will not affect the stability of the flask section 32 at the rear of the flask 30, thereby ensuring that the flask section 32 will not fall off and be damaged.

[0039] In order to adapt to bearings of different sizes and play a supporting role for them, the fixed cylinder 1043 includes a first fixing frame 10431 adapted to the outside of the first bearing 1041 and a second fixing frame 10432 adapted to the outside of the second bearing 1042. The first fixing frame 10431 and the second fixing frame 10432 form a convex structure to form an adaptive positioning and fixation for the first bearing 1041 and the second bearing 1042. The extension bracket 1044 outside the fixed cylinder 1043 adopts the form of an annular and L-shaped bracket, which is prior art and will not be elaborated here in detail.

[0040] During the rotation of the flask 30, the liquid inside it will form a liquid film, thereby increasing the heating area of the liquid and making the evaporation more sufficient. However, if anti-boiling particles are added to the flask 30, the liquid film will be damaged during the rotation of the flask 30, affecting the heating area. Therefore, on the basis of the split connection structure 1 of the present utility model, an installation cylinder 201 is provided at the position of the sealing net 102. The installation cylinder 201 extends into the inside of the flask 30 through a storage rack 202. The anti-boiling particles are stored in the storage rack 202. The storage rack 202 is in a cantilever state inside the flask 30, that is, it does not contact any inner wall surface of the flask 30. When the storage rack 202 and the installation cylinder 201 rotate with the flask 30, the anti-boiling particles will always be in contact with the solution in the flask 30 at the bottom of the entire storage rack 202, so as to be able to prevent the liquid from boiling while avoiding the phenomenon of damaging the liquid film in the flask 30.

[0041] Among them, in order to avoid obstructing the normal flow of gas and improve the matching effect between the installation cylinder 201 and the straight part of the flask section 32, the installation cylinder 201 includes a reduced-diameter pipe 2011 fixedly connected to the sealing net 102. A flow pipe 2012 is arranged on the side of the reduced-diameter pipe 2011 away from the sealing net 102. A number of holes are opened on the outer sides of the reduced-diameter pipe 2011 and the flow pipe 2012. The end of the flow pipe 2012 is connected to the storage rack 202. The holes opened on the reduced-diameter pipe 2011 and the flow pipe 2012 can make the flow of the evaporated gas more free, and the clamping matching effect between the reduced-diameter pipe 2011, the flow pipe 2012 and the flask section 32 can make the storage rack 202 more stable.

[0042] The anti-boiling particles are stored in the storage rack 202. In order to allow the liquid to contact the anti-boiling particles, the storage rack 202 of this embodiment includes a lower sealing bowl 2021 connected to the flow pipe 2012. An upper sealing bowl 2022 is locked above the lower sealing bowl 2021. The lower sealing bowl 2021 and the upper sealing bowl 2022 form a space for accommodating the anti-boiling particles. The surfaces of the lower sealing bowl 2021 and the upper sealing bowl 2022 of the storage rack 202 are provided with hole positions. The lower sealing bowl 2021 and the upper sealing bowl 2022 are in a fixed and openable manner, so as to facilitate the filling and replacement of the anti-boiling particles.

[0043] When performing water bath heating on the flask section 32, not all parts of the flask section 32 with solution are in contact with water, and a large part is not in contact with water. Therefore, the water bath heating structure 40 of this embodiment includes a heating furnace 41 for heating the liquid. An inclined ring plate 42 is inwardly inclined at the upper edge of the heating furnace 41. A number of output pumps 43 are installed inside the inclined ring plate 42. A central ball 44 is arranged in the middle of the furnace body of the heating furnace 41. The central ball 44 is connected to a number of output pumps 43 through a number of pipes. By adding the water bath heating structure 40, the water at the bottom of the heating furnace 41 can be pumped upwards and pressured onto the outer wall of the flask section 32 through the output pumps 43 on the inclined ring plate 42, so that the parts of the flask section 32 that are not in direct contact with water can also be heated well, achieving the purpose of uniform heating.

[0044] Among them, the inclined ring plate 42 is arranged at an interval from the flask 30. The boiling water flowing to the inclined ring plate 42 after heating in the heating furnace 41 then slides down.

[0045] Further, the inclination angle of the inclined ring plate 42 with respect to the horizontal plane is 30-45°. In this embodiment, the inclination angle of the inclined ring plate 42 with respect to the horizontal plane is 35°.

[0046] Further, the output pump 43 is connected to a nozzle, and the nozzle points to the flask 30. The nozzle can be from Figure 1It can be directly seen from this, and the setting angle of the nozzle can be adjusted at any time according to the height of the solution.

[0047] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A palladium chloride concentration and crystallization equipment uses a water bath heating device, characterized in that, include: The water bath heating device is arranged on a frame (10) and is used to heat the flask (30); a machine head (20) is arranged on the frame (10); a flask (30) is connected to one side of the machine head (20); and a water bath heating structure (40) is arranged at the lower end of the flask (30); The water bath heating structure (40) comprises a heating furnace (41) for heating liquid, an inclined ring plate (42) is arranged on the upper edge of the heating furnace (41) and is inclined inwardly, a plurality of output pumps (43) are installed on the inner side of the inclined ring plate (42), a central ball (44) is arranged in the middle of the furnace body of the heating furnace (41), and the central ball (44) is connected to a plurality of output pumps (43) through a plurality of pipes.

2. a kind of palladium chloride concentrating crystallization equipment according to claim 1 uses a water-bath heating device, it is characterized in that, The inclined ring plate (42) is spaced apart from the flask (30), and when the heating furnace (41) is heated, boiling water flows onto the inclined ring plate (42) and then slides down.

3. a kind of palladium chloride concentrating crystallization equipment according to claim 2 uses a water-bath heating device, it is characterized in that, The inclination angle between the oblique ring plate (42) and the horizontal plane is 30-45°.

4. a kind of palladium chloride concentrating crystallization equipment according to claim 1 uses a water-bath heating device, it is characterized in that, The output pump (43) is connected to a nozzle, and the nozzle is directed toward the flask (30).

5. a kind of palladium chloride concentrating crystallization equipment according to claim 1 uses a water-bath heating device, it is characterized in that, The flask (30) comprises a straight section (31) connected to the machine head (20), and a flask section (32) is connected to the side of the straight section (31) away from the machine head (20). A cantilevered containing structure is arranged on the inner side of the flask section (32). The cantilevered containing structure comprises a mounting tube (201) arranged on the inner side of the flask section (32). The mounting tube (201) is tightly attached to the inner side of the straight part of the flask section (32). The end of the mounting tube (201) is connected to a storage rack (202). The storage rack (202) is cantilevered in the circular cavity of the flask section (32). The interior of the storage rack (202) is filled with anti-boiling particles. The storage rack (202) is immersed in the liquid of the flask section (32). When the flask section (32) rotates, the storage rack (202) and the anti-boiling particles in the storage rack (202) are driven to rotate.

6. a kind of palladium chloride concentrating crystallization equipment according to claim 5 uses a water-bath heating device, it is characterized in that, The mounting tube (201) comprises a reducing tube (2011) fixedly connected to the flask section (32), a circulation tube (2012) is arranged on the other side of the reducing tube (2011), a plurality of holes are provided on the outer sides of the reducing tube (2011) and the circulation tube (2012), and the end of the circulation tube (2012) is connected to the storage rack (202).

7. a kind of palladium chloride concentrating crystallization equipment according to claim 6 uses a water-bath heating device, it is characterized in that, The storage rack (202) includes a lower sealing bowl (2021) connected to the circulation tube (2012), an upper sealing bowl (2022) is locked above the lower sealing bowl (2021), and the lower sealing bowl (2021) and the upper sealing bowl (2022) form a space for accommodating anti-boiling particles.

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