A concentrated crystallization device for preparing palladium chloride

Abstract

The invention discloses a concentrated crystallization device for preparing palladium chloride, comprising a frame, a machine head, a flask, a water bath heating structure, a transfer tube, a feed tube, a condenser, and a collecting bottle, and also comprising: a split connection structure, wherein the flask comprises a straight segment connected to the machine head, a side of the straight segment away from the machine head is connected with a flask segment, the split connection structure comprises a sealing cylinder nested on the outside of the straight portion of the flask segment, a sealing net is arranged at the opening of the flask segment, the straight segment and the flask segment are wrapped with a closed rubber sleeve on the outside, and a pressure dividing component is arranged on the outer movable sleeve of the closed rubber sleeve; a cantilevered accommodating structure, comprising a mounting cylinder arranged on the inner side of the sealing net, the end of the mounting cylinder is connected to a storage rack, the storage rack is cantilevered in a circular cavity of the flask segment, and the interior of the storage rack is filled with anti-boiling particles. The invention can allow the interior of the flask to be provided with the anti-boiling particles without affecting the normal formation of a liquid film, and can also better ensure the stability of the flask.

Description

Technical Field

[0001] The invention relates to a palladium chloride preparation device, in particular to a concentration crystallization device for palladium chloride preparation. Background Art

[0002] Palladium chloride is an inorganic compound used to prepare special catalysts and molecular sieves. Its preparation process is to complex dichlorodiammine palladium with ammonia water, then reduce it with hydrazine hydrate and filter it to obtain a primary product, then perform chlorination leaching and secondary filtration, and concentrate and crystallize the filtered product to obtain palladium chloride. In the process of concentration and crystallization, the solution is mainly evaporated and crystallized by a rotary evaporator, the filtered solution is introduced into a flask, the flask is rotated at a constant speed and heated, and the volatile solvent is continuously distilled under reduced pressure to obtain palladium chloride.

[0003] During the concentration process of the rotary evaporator, due to the centripetal force and friction between the liquid sample and the evaporating flask, the liquid sample forms a thin liquid film on the inner surface of the evaporating flask, thereby increasing the heating area. At the same time, in order to avoid boiling in the flask, anti-boiling particles are often added to the inside of the flask. However, this can easily cause the continuously rolling anti-boiling particles to destroy the integrity of the liquid film, making it impossible for the liquid film to always maintain a complete surface, affecting the heating area of ​​the liquid, and further affecting the concentration efficiency.

[0004] Therefore, this case aims to provide a concentrated crystallization equipment for the preparation of palladium chloride, which can not only set anti-boiling particles inside the flask without affecting the normal formation of the liquid film, but also better ensure the stability of the flask. Even if the atmosphere is ventilated without stopping the motor, there is no need to worry about the flask falling off. Summary of the invention

[0005] The invention provides a concentrated crystallization device for preparing palladium chloride, which can effectively solve the above problems.

[0006] The present invention is achieved in that:

[0007] A concentrated crystallization device for preparing palladium chloride comprises a frame, a machine head is arranged on the frame, 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, a transfer tube is connected to the other side of the machine head, the transfer tube is communicated with a feed tube, a condenser is arranged at the upper end of the feed tube, and a collecting bottle is connected to the lower end of the feed tube. The concentrated crystallization device also comprises:

[0008] A split connection structure, wherein the flask comprises a straight segment connected to the machine head, a flask segment is connected to the side of the straight segment away from the machine head, the diameter of the straight portion of the flask segment is smaller than the straight segment, the split connection structure comprises a sealing cylinder nested on the outside of the straight portion of the flask segment, a sealing net is provided at the opening of the flask segment, the outside of the straight segment and the flask segment is wrapped with a closed rubber sleeve, a pressure-dividing component is provided on the outer movable sleeve of the closed rubber sleeve, the bottom of the pressure-dividing component extends and is fixed to the outside of the water bath heating structure, the straight segment is driven to rotate when the machine head rotates, and the flask segment is driven to rotate on the inner side of the pressure-dividing component through the straight segment;

[0009] The cantilevered containing structure comprises a mounting tube arranged on the inner side of the sealing net, the mounting tube is tightly attached to the inner side of the straight part of the flask segment, the end of the mounting tube is connected to a storage rack, the storage rack is cantilevered in the circular cavity of the flask segment, the interior of the storage rack is filled with anti-boiling particles, the storage rack is immersed in the liquid of the flask segment, and when the flask segment rotates, the storage rack and the anti-boiling particles in the storage rack are driven to rotate.

[0010] As a further improvement, the sealing cylinder includes an inner sealing section located between the straight section and the straight portion of the flask section, and a flat-mouth section is provided on the outer edge of the opening of the flask section, and the flat-mouth section and the inner sealing section are integrally formed.

[0011] As a further improvement, the sealing rubber sleeve is a convex structure, and the sealing rubber sleeve includes a large sealing portion sleeved on the outside of the straight section and a small sealing portion sleeved on the outside of the straight section of the flask section.

[0012] As a further improvement, the pressure dividing assembly includes a first bearing and a second bearing which are sleeved on the outside of the large enclosed portion and the small enclosed portion, and a fixed cylinder is fixed on the outside of the first bearing and the second bearing, and the fixed cylinder is extended and fixed to the outside of the water bath heating structure through an extension bracket.

[0013] As a further improvement, the solid cylinder includes a first fixing frame adapted to the outer side of the first bearing, and a second fixing frame adapted to the outer side of the second bearing, and the first fixing frame and the second fixing frame form a convex structure.

[0014] As a further improvement, the installation tube includes a reduced diameter tube fixedly connected to the sealing net, a flow tube is arranged on the side of the reduced diameter tube away from the sealing net, a plurality of holes are opened on the outer sides of the reduced diameter tube and the flow tube, and the end of the flow tube is connected to the storage rack.

[0015] As a further improvement, the storage rack includes a lower sealing bowl connected to the circulation pipe, an upper sealing bowl is locked above the lower sealing bowl, and the lower sealing bowl and the upper sealing bowl form a space for accommodating anti-boiling particles.

[0016] As a further improvement, the water bath heating structure includes a heating furnace for heating liquid, an inclined ring plate is arranged on the upper edge of the heating furnace and tilted inward, a plurality of output pumps are installed on the inner side of the inclined ring plate, a central ball is arranged in the middle of the heating furnace body, and the central ball is connected to a plurality of output pumps through a plurality of pipes.

[0017] The beneficial effects of the present invention are:

[0018] In the existing concentration and crystallization equipment, the anti-boiling material is directly located in the flask, and the flask is directly connected to the machine head. In this way, during the operation of a novice, if the machine head is connected to the atmosphere before it stops running, the flask is prone to failures such as falling off and falling. Therefore, the present invention divides the original entire flask into segments, which are divided into a straight line segment and a flask segment, and a split connection structure is set at the connecting position of the two. First, a sealing cylinder is set on the outside of the straight part of the flask segment so that the flask segment can be tightly matched with the outside of the straight line segment. At the same time, the outside of the entire straight line segment and the flask segment are fixed by a closed rubber sleeve so that the two can be tightly matched together without leakage. The closed rubber sleeve is pressure-bearing through the pressure-dividing component, so that even if the straight line segment is separated from the machine head, the entire straight line segment and the flask segment can be tightly supported by the pressure-dividing component, thereby preventing the flask from directly falling off and being damaged. Even if the straight line segment is forced to separate from the flask segment, the flask segment can be supported by the pressure-dividing component to achieve double protection.

[0019] In order to allow the flask segment with a smaller diameter to cooperate with the straight segment, thereby avoiding the leakage of evaporated gas, the present invention arranges an integrated inner sealing segment and a flat-mouth segment on the outside of the straight portion of the flask segment, that is, between the flask segment and the straight segment, so that after the flask segment is embedded in the straight segment, it is not easy to slide and breathe; even if the inner sealing segment is subjected to tension, it will involve the flat-mouth segment, and the overall sealing performance is greatly improved.

[0020] After the sealing cylinder is provided, even if the flask segment and the inner side of the straight segment form a good sealing effect, if only this segment is used for sealing, air leakage will easily occur after the sealing part of this segment is aged. Therefore, the present invention further provides a sealing rubber sleeve on the basis of the sealing cylinder. The sealing parts at both ends of the sealing rubber sleeve are fixed in steps, and the two sections of the sealing parts are connected to achieve the sealing of the outside. Combined with the sealing of the inside, a two-stage seal is formed. Even if one part of it is aged after long-term use, it is not easy to leak on a large scale.

[0021] During the entire concentration process, the equipment needs to be kept in a decompressed state, and then the machine head is started to rotate the entire flask. If the machine head is not stopped and positive pressure is directly introduced, the flask can easily fall out. Therefore, the present invention provides two bearings on the basis of the sealing cylinder and the sealing rubber sleeve to fix the two sections of pipes with different calibers respectively. On the outside of the two bearings, a solid cylinder is separately provided for protection and fixation. The solid cylinder is located in the middle of the flask section and the straight section. Therefore, no matter whether the straight section itself is separated from the machine head or the straight section is separated from the flask section, it will not affect the stability of the flask section at the rear section of the flask, thereby ensuring that the flask section will not fall off and be damaged.

[0022] During the rotation of the flask, the liquid therein will form a liquid film, thereby increasing the heating area of ​​the liquid and making it more sufficient during evaporation. However, if anti-boiling particles are added to the flask, the liquid film will be destroyed as the flask rotates, affecting the heating area. Therefore, the present invention provides a mounting tube at the position of the sealing net on the basis of the split connection structure. The mounting tube extends to the interior of the flask through a storage rack. The anti-boiling particles are stored in the storage rack. The storage rack is in a cantilevered state in the flask, that is, it does not contact any inner wall surface of the flask. When the storage rack and the mounting tube rotate with the flask, the anti-boiling particles will always be at the bottom of the entire storage rack and contact with the solution in the flask, thereby being able to stop the boiling of the liquid while avoiding the destruction of the liquid film in the flask.

[0023] The anti-boiling particles are stored in a storage rack. In order to allow the liquid to contact the anti-boiling particles, the surface of the storage rack in the present invention is configured with a lower sealing bowl and an upper sealing bowl with holes. The lower sealing bowl and the upper sealing bowl are fixed in an openable and closable manner, thereby facilitating the filling and replacement of the anti-boiling particles.

[0024] When the flask segment is heated in a water bath, not all the parts of the flask segment containing the solution are in contact with water, and a large part of them is not in contact with water. Therefore, the present invention can pump water from the bottom of the heating furnace upwards through the additional water bath heating structure, and apply pressure to the outer wall of the flask segment through the output pump on the inclined ring plate, so that the part of the flask segment that is not in direct contact with water can also receive a better heating effect, thereby achieving the purpose of uniform heating. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1It is a three-dimensional structural schematic diagram (first viewing angle) of a concentrated crystallization device for preparing palladium chloride of the present invention.

[0027] Figure 2 It is a structural schematic diagram of a concentrated crystallization device for preparing palladium chloride according to the present invention (second viewing angle).

[0028] Figure 3 The present invention is a schematic diagram of a top view of a concentrated crystallization device for preparing palladium chloride.

[0029] Figure 4 The present invention Figure 3 Cross-section view at AA in the middle.

[0030] Figure 5 The present invention Figure 4 Magnified view of area B.

[0031] Figure 6 It is a structural schematic diagram of the flask of the present invention and the split connection structure.

[0032] Figure 7 The present invention Figure 6 Schematic diagram of the top view structure.

[0033] Figure 8 The present invention Figure 7 Isometric section view at mid-CC.

[0034] Fig. 9 It is a structural schematic diagram of the water bath heating structure of the present invention.

[0035] In the figure:

[0036] Frame 10, machine head 20, flask 30, straight section 31, flask section 32, water bath heating structure 40, heating furnace 41, oblique ring plate 42, output pump 43, central ball 44, transfer pipe 50, feed pipe 60, condenser 70, collecting bottle 80, split connection structure 1, sealing cylinder 101, inner sealing section 1011, flat section 1012, sealing net 102, sealing rubber sleeve 103, large sealing part 1031, small sealing part 1032, pressure dividing assembly 104, first bearing 1041, second bearing 1042, solid cylinder 1043, first fixing frame 10431, second fixing frame 10432, extension bracket 1044, installation cylinder 201, reducing tube 2011, circulation tube 2012, storage rack 202, lower sealing bowl 2021, upper sealing bowl 2022. DETAILED DESCRIPTION

[0037] In order to make the embodiments of the present invention, all belong to the scope of protection of the present invention. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of the present invention.

[0038] In the description of the present invention, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as referring to the purpose, technical solutions and advantages of the methods. To be more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work indicate or imply relative importance or implicitly indicate the number of indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0039] Reference Figures 1 to 9As shown, a concentrated crystallization device for preparing palladium chloride comprises a frame 10, on which a machine head 20 is arranged, one side of the machine head 20 is connected to a flask 30, the lower end of the flask 30 is provided with a water bath heating structure 40, the other side of the machine head 20 is connected to a transfer tube 50, the transfer tube 50 is communicated with a feed pipe 60, the upper end of the feed pipe 60 is provided with a condenser 70, the lower end of the feed pipe 60 is connected to a collecting bottle 80, characterized in that the concentrated crystallization device also comprises: a split connection structure 1, the flask 30 comprises a straight section 31 connected to the machine head 20, the side of the straight section 31 away from the machine head 20 is connected to a flask section 32, the diameter of the straight section of the flask section 32 is smaller than the straight section 31, the split connection structure 1 comprises a sealing cylinder 101 nested on the outside of the straight section of the flask section 32, a sealing net 102 is provided at the opening of the flask section 32, The outside of the straight segment 31 and the flask segment 32 is wrapped with a closed rubber sleeve 103, and the outer movable sleeve of the closed rubber sleeve 103 is provided with a pressure dividing component 104, 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 head 20 rotates, the straight segment 31 is driven to rotate, and the flask segment 32 is driven to rotate on the inner side of the pressure dividing component 104 through the straight segment 31; the cantilevered containing structure includes a mounting tube 201 arranged on the inner side of the sealing net 102, the mounting tube 201 is tightly attached to the inner side of the straight part of the flask segment 32, and 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 segment 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 segment 32, and when the flask segment 32 rotates, the storage rack 202 and the anti-boiling particles in the storage rack 202 are driven to rotate.

[0040] During the entire concentration and crystallization process, the palladium chloride liquid is first added to the flask 30 through the feed pipe 60 via the transfer pipe 50, and then the internal environment of the entire flask 30 is depressurized, and the machine head 20 is driven to rotate. At the same time, the water bath heating structure 40 is started to evaporate the liquid in the flask 30. The evaporated gas flows through the condenser 70 for cooling and then flows into the collecting bottle 80 and is discharged to obtain palladium chloride.

[0041] The sealing net 102 is a filter screen that can filter out some impurities.

[0042] In the existing concentrated crystallization equipment, the anti-boiling material is 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 a novice, if the machine head 20 is connected to the atmosphere before it stops running, the flask 30 is prone to failures such as falling off and falling. Therefore, the present invention divides the original whole section of the flask 30 into segments, divided into a straight section 31 and a flask section 32, and sets a split connection structure 1 at the connection position between the two. First, a sealing cylinder 101 is set on the outer side of the straight part of the flask section 32, so that the flask section 32 can be tightly sealed with the outer side of the straight section 31. At the same time, the entire straight section 31 and the flask section 32 are fixed on their outer sides by a closed rubber sleeve 103, so that the two can fit closely together without leakage, and the closed rubber sleeve 103 is pressure-bearing through the pressure-dividing component 104, so that 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, and even if the straight section 31 and the flask section 32 are forced to separate, the flask section 32 can also be supported by the pressure-dividing component 104, thereby achieving double protection.

[0043] In order to allow the flask segment 32 with a smaller diameter to cooperate with the straight segment 31, thereby preventing the evaporated gas from leaking out, the sealing cylinder 101 of this embodiment includes an inner sealing segment 1011 located between the straight segment 31 and the straight portion of the flask segment 32, and a flat-mouth segment 1012 is provided on the outer edge of the opening of the flask segment 32. The flat-mouth segment 1012 and the inner sealing segment 1011 are integrally formed, and an integrated inner sealing segment 1011 and a flat-mouth segment 1012 are provided on the outer side of the straight portion of the flask segment 32, that is, between the flask segment 32 and the straight segment 31. Therefore, after the flask segment 32 is embedded in the straight segment 31, it is not easy to slide and breathe. Even if the inner sealing segment 1011 is subjected to tension, it will also involve the flat-mouth segment 1012, and the overall sealing performance is greatly improved.

[0044] After the sealing cylinder 101 is provided, even if the flask section 32 and the inner side of the straight section 31 form a good sealing effect, if only this section is used for sealing, air leakage will easily occur after the sealing part of this section is aged. Therefore, the sealing rubber sleeve 103 of this embodiment is a convex structure, and 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. The sealing parts at both ends of the sealing rubber sleeve 103 are fixed in steps, and the two sections of the sealing parts are connected, so as to realize the sealing of the outer side, and then combined with the sealing of the inner side to form a two-stage seal, even if one part of it is aged after long-term use, it is not easy to leak on a large scale.

[0045] During the entire concentration process, the device needs to be kept in a decompressed state, and then the machine head 20 is started to rotate the entire flask 30. If the machine head 20 is not stopped and positive pressure is directly introduced, it is easy to cause the flask 30 to fall out. Therefore, the pressure-dividing assembly 104 of this embodiment includes a first bearing 1041 and a second bearing 1042 sleeved on the outside of the large closed part 1031 and the small closed part 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 connected to the outer side of the large closed part 1031 and the small closed part 1032 through an extension bracket 1044. It is extended and fixed to the outside of the water bath heating structure 40. Two bearings are arranged on the basis of the sealing cylinder 101 and the sealing rubber sleeve 103 to fix the two sections of pipes with different calibers respectively. On the outside of the two bearings, a solid cylinder 1043 is separately arranged for protection and fixation. The solid cylinder 1043 is located in the middle of the flask segment 32 and the straight segment 31. Therefore, no matter whether the straight segment 31 itself is separated from the machine head 20 or the straight segment 31 is separated from the flask segment 32, it will not affect the stability of the flask segment 32 at the rear section of the flask 30, thereby ensuring that the flask segment 32 will not fall off and be damaged.

[0046] In order to adapt to bearings of different sizes and provide support for them, the solid cylinder 1043 includes a first fixing frame 10431 that is adapted to the outer side of the first bearing 1041, and a second fixing frame 10432 that is adapted to the outer side of the second bearing 1042. The first fixing frame 10431 and the second fixing frame 10432 form a convex structure to adaptively position and fix the first bearing 1041 and the second bearing 1042. The extended bracket 1044 on the outer side of the solid cylinder 1043 adopts a ring-shaped and L-shaped bracket, which is the existing technology and will not be described in detail here.

[0047] During the rotation of the flask 30, the liquid therein will form a liquid film, thereby increasing the heating area of ​​the liquid and making it more sufficient during evaporation. However, if anti-boiling particles are added to the flask 30, the liquid film will be destroyed as the flask 30 rotates, affecting the heating area. Therefore, the present invention provides a mounting tube 201 at the position of the sealing net 102 on the basis of the split connection structure 1. The mounting tube 201 extends to the interior 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 cantilevered state in the flask 30, that is, it does not contact any inner wall surface of the flask 30. When the storage rack 202 and the mounting tube 201 rotate with the flask 30, the anti-boiling particles will always be at the bottom of the entire storage rack 202 and contact with the solution in the flask 30, thereby being able to stop the boiling of the liquid while avoiding the phenomenon of destroying the liquid film in the flask 30.

[0048] Among them, in order to avoid obstructing the normal circulation of gas and improve the matching effect between the installation tube 201 and the straight part of the flask section 32, the installation tube 201 includes a reducing tube 2011 fixedly connected to the sealing net 102, and a flow tube 2012 is arranged on the side of the reducing tube 2011 away from the sealing net 102. A plurality of holes are opened on the outer sides of the reducing tube 2011 and the flow tube 2012, and the end of the flow tube 2012 is connected to the storage rack 202. The holes opened in the reducing tube 2011 and the flow tube 2012 can make the evaporated gas circulate more freely, and the clamping matching effect of the reducing tube 2011, the flow tube 2012 and the flask section 32 can make the storage rack 202 more stable.

[0049] The anti-boiling particles are stored in a 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 circulation tube 2012, and an upper sealing bowl 2022 is locked on the top of 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 surface of the storage rack 202 is configured as a lower sealing bowl 2021 and an upper sealing bowl 2022 with holes. The lower sealing bowl 2021 and the upper sealing bowl 2022 are fixed in an openable and closable manner, thereby facilitating the filling and replacement of the anti-boiling particles.

[0050] When the flask section 32 is heated in a water bath, not all the parts of the flask section 32 containing the solution are in contact with water, and a large part of them is not in contact with water. Therefore, the water bath heating structure 40 of this embodiment includes a heating furnace 41 for heating liquid, and an inclined ring plate 42 is provided on the upper edge of the heating furnace 41 to tilt inward, and a plurality of output pumps 43 are installed on the inner side of the inclined ring plate 42. A central ball 44 is provided 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. Through the additional water bath heating structure 40, the water at the bottom of the heating furnace 41 can be pumped upward and pressed to the outer wall of the flask section 32 through the output pump 43 on the inclined ring plate 42, so that the part of the flask section 32 that is not in direct contact with water can also receive a better heating effect, thereby achieving the purpose of uniform heating.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A concentrated crystallization device for preparing palladium chloride, comprising 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 tube (50) is connected to the other side of the machine head (20), the transfer tube (50) is communicated with a feed tube (60), a condenser (70) is arranged at the upper end of the feed tube (60), and a collecting bottle (80) is connected to the lower end of the feed tube (60), characterized in that: The concentration and crystallization equipment also includes: The split connection structure (1) comprises a flask (30) comprising a straight section (31) connected to a machine head (20), a side of the straight section (31) away from the machine head (20) being connected to a flask section (32), the diameter of the straight section of the flask section (32) being smaller than the straight section (31), the split connection structure (1) comprising a sealing cylinder (101) nested outside the straight section of the flask section (32), a sealing net (101) being arranged at the opening of the flask section (32) 2), the outer sides of the straight section (31) and the flask section (32) are wrapped with a closed rubber sleeve (103), the outer movable sleeve of the closed rubber sleeve (103) is provided with a pressure dividing component (104), the bottom of the pressure dividing component (104) extends and is fixed to the outer side of the water bath heating structure (40), when the head (20) rotates, the straight section (31) is driven to rotate, and the flask section (32) is driven to rotate on the inner side of the pressure dividing component (104) through the straight section (31); The sealing cylinder (101) comprises an inner sealing section (1011) located between the straight section (31) and the straight section of the flask section (32); a flat-mouth section (1012) is provided on the outer edge of the opening of the flask section (32); the flat-mouth section (1012) and the inner sealing section (1011) are integrally formed; The sealing rubber sleeve (103) is a convex structure, and comprises a large sealing portion (1031) sleeved on the outside of the straight section (31) and a small sealing portion (1032) sleeved on the outside of the straight section of the flask section (32); The pressure dividing assembly (104) comprises a first bearing (1041) and a second bearing (1042) which are sleeved on the outside of 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) via an extension bracket (1044); The solid cylinder (1043) comprises 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), wherein the first fixing frame (10431) and the second fixing frame (10432) form a convex structure; The cantilevered containing structure comprises a mounting tube (201) arranged on the inner side of the sealing net (102), the mounting tube (201) being closely attached to the inner side of the straight portion of the flask section (32), the end of the mounting tube (201) being connected to a storage rack (202), the storage rack (202) being cantilevered and arranged in the circular cavity of the flask section (32), the interior of the storage rack (202) being filled with anti-boiling particles, the storage rack (202) being immersed in the liquid of the flask section (32), and when the flask section (32) is rotated, the storage rack (202) and the anti-boiling particles in the storage rack (202) are driven to rotate.

2. a kind of palladium chloride preparation according to claim 1 is used for concentrating and crystallizing equipment, it is characterized in that, The installation tube (201) comprises a reduced diameter tube (2011) fixedly connected to the sealing net (102); a circulation tube (2012) is arranged on a side of the reduced diameter tube (2011) away from the sealing net (102); a plurality of holes are provided on the outer sides of the reduced diameter tube (2011) and the circulation tube (2012); and a terminal end of the circulation tube (2012) is connected to the storage rack (202).

3. a kind of palladium chloride preparation according to claim 2 is used for concentrating and crystallizing equipment, it is characterized in that, The storage rack (202) comprises 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.

4. a kind of palladium chloride preparation according to claim 1 concentrates and crystallizes equipment, it is characterized in that, 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 arranged 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). The central ball (44) is connected to a plurality of output pumps (43) through a plurality of pipes.

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