A material dissolving system

Abstract

The present invention provides a material dissolution system, including a dissolution tank, at least one overflow structure and a filter device. The overflow structure divides the dissolution tank into at least one mixing chamber and at least one overflow chamber, and the filter device is arranged in the overflow chamber, and the inlet of the filter device is connected to the overflow port upstream of the overflow chamber. The material enters the solution in the mixing chamber to dissolve and mix, and the solution overflows step by step through the overflow port and is filtered step by step through the filter device. The solution output from the liquid outlet does not contain undissolved material, thereby improving the purity of the solution; a receiving structure is arranged below the feeding port to receive the material fed at the feeding port to avoid the material being directly fed into the solution and causing the solution to splash; the weighing mechanism automatically completes the weighing of the preset weight through the lever principle, thereby reducing manpower and material resources and improving the accuracy and efficiency of the weighing. A mechanical stirring device and air supply system are used to jointly assist in mixing the solution, disturb the solution, accelerate the dissolution rate of the material, and improve the dissolution efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of dissolution equipment, and in particular to a material dissolution system. Background Art

[0002] In order to ensure the uniformity and density of the coating on the plated plate, the existing continuous thin plate electroplating production line needs to maintain a certain concentration of copper ions in the electrolytic solution. During the continuous operation of the electroplating plate electroplating production line, since the electrolytic solution in the electroplating tank circulates and the copper ions are gradually consumed and their concentration is reduced during the electroplating process, it is necessary to replenish the copper ions in the electrolytic solution in a timely manner.

[0003] The traditional replenishment method is to manually add copper powder to the main electroplating tank. After the copper powder is dissolved in the electroplating solution of the main tank, it is introduced into the continuous electroplating tank through the jet pipeline of the circulation pump. This replenishment method requires manual addition of copper powder from the copper powder bag to the storage barrel, which wastes manpower and has low work efficiency. In addition, the capacity of the electroplating solution in the main tank is fixed, and the accuracy of manually adding copper powder to the low-concentration electroplating solution in the main tank to dissolve to reach the target concentration is low, and the concentration of copper ions cannot be guaranteed. In addition, there is undissolved copper oxide powder when the solution is output. The copper oxide powder is dense and granular. When it enters the electroplating tank, it will adhere to the electroplating sheet, affecting the electroplating effect. Summary of the invention

[0004] Therefore, the technical problem to be solved by the present invention is to overcome the incomplete dissolution of the solution delivered to the electroplating tank, which affects the electroplating effect, and to provide a more efficient material dissolution system.

[0005] To this end, the present invention provides a material dissolving system, comprising

[0006] Dissolution tank;

[0007] At least one overflow structure is arranged in the dissolving tank at intervals to divide the dissolving tank into at least two working chambers, and at least one of the working chambers is a mixing chamber, and at least one of the working chambers is an overflow chamber; a liquid inlet and a feeding port are provided on the mixing chamber, a liquid outlet is provided on the overflow chamber away from the mixing chamber, and an overflow port connecting two adjacent working chambers is provided on the overflow structure;

[0008] The filter device is arranged in the overflow cavity, and the inlet of the filter device is communicated with the overflow port upstream of the overflow cavity.

[0009] There are multiple overflow chambers, which are arranged in sequence on one side of the mixing chamber.

[0010] The height of the overflow port connecting the mixing chamber and the overflow chamber is higher than the overflow port connecting two adjacent overflow chambers.

[0011] The height of the overflow port gradually decreases from the mixing chamber to the overflow chamber far away from the mixing chamber.

[0012] The filtering device is detachably connected to the overflow port.

[0013] The filtering device comprises:

[0014] A blocking member, arranged around the overflow port;

[0015] The filter element is detachably mounted on the blocking element and is suitable for filtering the solution flowing out of the overflow port.

[0016] The filter element is a filter bag.

[0017] It also includes a receiving structure, which is arranged in the mixing chamber and is spaced apart from the feeding port below the feeding port. The projection of the receiving structure in the vertical upward direction at least partially falls on the feeding port.

[0018] The receiving structure extends from the inner wall of the mixing chamber away from the overflow chamber to the inner wall of the mixing chamber close to the overflow chamber, and is spaced apart from the inner wall of the mixing chamber close to the overflow chamber; and during the extension process, the receiving structure tilts downward toward the feeding port.

[0019] The receiving structure is provided with at least one through hole.

[0020] The receiving structure is at least partially lower than the overflow port connecting the mixing chamber and the overflow chamber.

[0021] It also includes a shower structure, which is fixed on the inner wall of the mixing chamber and located above the receiving structure; the side of the receiving structure facing the feeding port is a receiving surface, and the shower port of the shower structure is arranged toward the receiving surface.

[0022] Also includes:

[0023] The auxiliary mixing device is at least arranged in the mixing chamber and is suitable for disturbing the solution and dissolving the material.

[0024] The auxiliary mixing device comprises a stirring device, and the stirring device comprises:

[0025] A stirring motor is arranged outside the dissolving tank;

[0026] A stirring rod connected to the driving end of the stirring motor; the stirring rod extends from the top of the mixing chamber to the bottom and is spaced apart from the bottom;

[0027] At least one fan blade unit is distributed on the stirring rod along the axial direction of the stirring rod; any of the fan blade units includes at least two fan blades distributed on the stirring rod along the radial direction of the stirring rod.

[0028] The auxiliary mixing device comprises an air supply system, and the air supply system comprises:

[0029] A blower fan is arranged outside the dissolving tank;

[0030] An air supply pipe connected to the air supply fan and extending into the working chamber;

[0031] At least one air hole is distributed on the air supply pipe.

[0032] The air supply pipe comprises:

[0033] A main air duct connecting the blower and the working chamber;

[0034] A plurality of first branch pipes are horizontally arranged at the bottom of the working chamber;

[0035] A plurality of second branch pipes are vertically arranged in the working chamber, and one end of the second branch pipes is connected to the main air duct, and the other end of the second branch pipes is connected to the first branch pipe;

[0036] The air vent is arranged on the first branch pipe.

[0037] It also includes a weighing mechanism arranged at the feeding port; the weighing mechanism includes:

[0038] A support frame, arranged on the dissolving tank;

[0039] A weighing sensor is mounted on the support frame and sends a start signal when triggered;

[0040] A material receiving assembly is hingedly arranged at the feeding port; the material receiving assembly is suitable for sealing the feeding port or turning over into the mixing chamber to open the feeding port;

[0041] A driver is fixed on the support frame and electrically connected to the weighing sensor; the driver is adapted to drive the material receiving assembly to flip toward the inside of the mixing chamber after receiving the start signal; a buffer section is provided between the driving end of the driver and the material receiving assembly;

[0042] When receiving the material, the material receiving assembly rotates around the hinge and generates displacement in the buffer section, and triggers the weighing sensor when the material reaches a preset weight.

[0043] The material receiving assembly comprises:

[0044] A connecting rod, the middle of which is hinged at the feeding port;

[0045] A material receiving plate is fixed to one end of the connecting rod and a sealing cover is arranged on the feeding port;

[0046] A counterweight is fixed at the other end of the connecting rod; the counterweight is suitable for moving along the buffer section when the receiving plate receives the material and triggering the weighing sensor after reaching a preset weight.

[0047] Also includes:

[0048] A material storage box is arranged above the weighing mechanism, and a material discharge port is arranged below the material storage box;

[0049] A pushing worm, arranged at the discharge port, suitable for pushing the material in the storage box to the receiving plate;

[0050] An upper limit switch and a lower limit switch of the material are respectively arranged in the material storage box.

[0051] The technical solution of the present invention has the following advantages:

[0052] 1. A material dissolution system provided by the present invention comprises a dissolution tank, at least one overflow structure and a filtering device. The overflow structure divides the dissolution tank into at least one mixing chamber and at least one overflow chamber, a liquid inlet and a feeding port are provided on the mixing chamber, a liquid outlet is provided on the overflow chamber away from the mixing chamber, an overflow port connecting two adjacent working chambers is provided on the overflow structure, a filtering device is provided in the overflow chamber, and an inlet of the filtering device is connected to the overflow port upstream of the overflow chamber. The material enters the mixing chamber and is dissolved and mixed in the solution in the mixing chamber, the solution overflows step by step through the overflow port, and is filtered step by step through the filtering device, so that the solution output from the liquid outlet does not contain undissolved material, thereby improving the purity of the solution.

[0053] 2. In a material dissolution system provided by the present invention, a receiving structure is arranged below the feeding port to receive the material fed from the feeding port, thereby preventing the material from being directly thrown into the solution and causing splashing of the solution.

[0054] 3. The present invention provides a material dissolution system, in which the weighing mechanism automatically completes the weighing of a preset weight through the lever principle, thereby reducing manpower and material resources and improving weighing accuracy and efficiency.

[0055] 4. The material dissolution system provided by the present invention adopts a mechanical stirring device and an air supply system to jointly assist in mixing the solution, disturb the solution, accelerate the dissolution rate of the material, and improve the dissolution efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0056] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0057] Figure 1 It is a structural schematic diagram of the material dissolution system of the present invention;

[0058] Figure 2 It is a structural schematic diagram of the overflow structure in the material dissolving system of the present invention;

[0059] Figure 3 It is a partial structural schematic diagram of the material dissolution system of the present invention;

[0060] Figure 4 It is a schematic diagram of the structure of the weighing mechanism in the material dissolution system of the present invention.

[0061] Description of reference numerals:

[0062] 100-mixing chamber; 101-feeding port; 102-liquid inlet pipe; 103-liquid outlet; 104-cover plate; 200-overflow chamber; 300-bin; 400-frame;

[0063] 1-overflow structure; 11-first overflow plate; 12-second overflow plate; 121-overflow port;

[0064] 2-filter device; 21-filter bag; 22-baffle;

[0065] 3- receiving plate; 31- shower pipe;

[0066] 4-stirring device; 41-stirring motor; 42-stirring rod; 43-fan blade;

[0067] 5-air supply system; 51-air supply fan; 52-air supply pipe;

[0068] 6-weighing mechanism; 61-support frame; 62-weighing sensor; 63-push rod cylinder; 64-connecting rod; 65-receiving plate; 66-counterweight; 67-hinged block; 68-buffer section; 69-isolation cover;

[0069] 7-storage box; 71-discharging port; 72-push worm; 73-upper limit switch; 74-lower limit switch; 75-stainless steel rod; 76-conveying pipe; 77-vacuum feeder;

[0070] 8- quantitative addition pipe; 9- exhaust pipe; 10- drain pipe. DETAILED DESCRIPTION

[0071] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are only 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 are within the scope of protection of the present invention.

[0072] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0073] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0074] Example 1

[0075] This embodiment provides a material dissolution system, including a dissolution tank, at least one overflow structure 1 and a filtering device 2, such as Figure 1 As shown, the dissolving tank is installed on the frame 400, at least one overflow structure 1 is arranged in the dissolving tank at intervals, and the dissolving tank is divided into at least two working chambers, at least one of the two working chambers is a mixing chamber 100, and at least one is an overflow chamber 200. In this embodiment, five groups of overflow structures 1 are arranged, and the five groups of overflow structures 1 divide the dissolving tank into six working chambers, which are a mixing chamber 100 and five overflow chambers 200 from left to right. A liquid inlet and a feeding port 101 are provided at the top of the mixing chamber 100, as shown in FIG. Figure 1 As shown, the liquid inlet is connected to the outside through the liquid inlet pipe 102, which is convenient for injecting solution from the outside into the mixing chamber 100. The liquid outlet 103 is arranged on the wall of the overflow chamber 200 farthest from the mixing chamber 100, which is convenient for outputting the fully dissolved and mixed solution. The top of the mixing chamber 100 also passes through a set amount adding pipe 8, one end of which extends out of the mixing chamber 100 and the other end extends into the mixing chamber 100, which is suitable for adding catalysts, etc.

[0076] like Figure 2 As shown, the overflow structure 1 includes a first overflow plate 11 and a second overflow plate 12. The first overflow plate 11 is arranged near one side of the mixing chamber 100. The top and two side walls of the first overflow plate 11 are fixedly mounted on the inner wall surface of the dissolving tank. The bottom of the first overflow plate 11 is suspended. The second overflow plate 12 is fixedly mounted on the inner wall surface of the dissolving tank. An overflow gap is formed between the first overflow plate 11 and the second overflow plate 12. An overflow port 121 is provided at the upper part of the second overflow plate 12. The solution in the left working chamber enters the overflow gap from the bottom of the first overflow plate 11 and flows into the right working chamber from the overflow port 121. The height of the overflow port 121 on the overflow structure 1 connecting the mixing chamber 100 and the overflow chamber 200 is higher than the height of the overflow port 121 on any other overflow structure 1. In this embodiment, Figure 1 As shown, the height of the overflow port 121 is gradually reduced from the mixing chamber 100 to the overflow chamber 200 away from the mixing chamber 100 .

[0077] For example Figure 2 As shown, a filter device 2 is detachably provided on any overflow port 121, and the filter device 2 includes a blocking member and a filter member. In this embodiment, the blocking member is a baffle 22, and the filter member is a filter bag 21. The baffle 22 is a rectangular soft board, and the two ends of the rectangle are respectively fixedly installed on the left and right ends of the overflow port 121, forming a semi-elliptical shape, and is horizontally bent and circumferentially arranged on the overflow port 121, so as to limit the flow direction of the solution flowing out of the overflow port 121 in the horizontal direction. The filter bag 21 is detachably installed below the baffle 22, and the solution enters from the overflow port 121 and flows through the filter bag 21 and then enters the corresponding overflow cavity 200. The filter member can also be other components, such as a hard filter net.

[0078] like Figure 1 As shown, a weighing mechanism 6 is arranged at the top of the mixing chamber 100 at the feeding port 101, a storage box 7 is arranged on the frame 400 above the weighing mechanism 6, and a vacuum loader 77 is arranged on the top of the storage box 7. The vacuum loader 77 sucks the material in the silo 300 into the storage box 7 through a pipeline (not shown in the figure). The material in this embodiment is copper oxide powder, which is pre-added into the silo 300. The bottom of the silo 300 is designed to be in an inverted cone or an inverted frustum (not shown in the figure). The copper oxide powder is automatically gathered together by gravity, which is convenient for the vacuum loader 77 to suck, and the pipeline extends to the bottom of the inverted cone or inverted frustum.

[0079] like Figure 3As shown in the figure, a discharge port 71 is opened below the storage bin 7. A pushing worm 72 is arranged at the discharge port 71. The pushing worm 72 is driven by a motor and is adapted to push out the copper oxide powder in the storage bin 7 and push it to the weighing mechanism 6 through the conveying pipe 76. An upper limit switch 73 and a lower limit switch 74 for the material are arranged in the storage bin 7. The upper limit switch 73 and the lower limit switch 74 are respectively electrically connected to the vacuum feeder 77 and are used to control the stock of the copper oxide powder in the storage bin 7. After the pushing worm 72 continuously pushes out the copper oxide powder, the copper oxide powder in the storage bin 7 gradually decreases. When the copper oxide powder in the storage bin 7 is lower than the height of the lower limit switch 74, the lower limit switch 74 is triggered. At this time, the vacuum feeder 77 works to suck the copper oxide powder in the bin 300 into the storage bin 7 to supplement the amount of copper oxide powder. When the height of the copper oxide powder in the storage bin 7 gradually reaches the height of the upper limit switch 73, the upper limit switch 73 is triggered. At this time, the vacuum feeder 77 stops working. A baffle surface composed of a number of horizontally spaced stainless steel rods 75 is respectively arranged above the upper limit switch 73 and the lower limit switch 74 to prevent the material sucked in by the vacuum feeder 77 from directly falling on the limit switch. Long-term falling and collision will seriously affect the service life of the limit switch.

[0080] As Figure 3 shown, the weighing mechanism 6 is installed on the cover plate 104 at the top of the mixing chamber 100. A feeding port 101 is opened on the cover plate 104 and communicates with the mixing chamber 100 below. An isolation cover 69 is covered on the feeding port 101. The conveying pipe 76 penetrates through the isolation cover 69 and extends into the feeding port 101. As Figure 4 shown, the weighing mechanism 6 includes a support frame 61. The support frame 61 is in a U-shape and is fixedly installed on the cover plate 104. A hinge block 67 is fixed on the outer wall surface of the isolation cover 69. The connecting rod 64 is composed of two thin plates arranged side by side at intervals. The thin plates are integrally in a Z shape. The middle of the connecting rod 64 is hinged to the hinge block 67. One end of the connecting rod 64 is fixed to the bottom of the receiving plate 65, and the other end is provided with a counterweight 66. The weight of the counterweight 66 can be replaced according to different needs. A driver is arranged on the U-shaped horizontal part of the support frame 61. In this embodiment, the driver adopts a push rod cylinder 63. The push rod of the push rod cylinder 63 faces downward and extends in the vertical direction. The push rod slides through the two thin plates. Limit members are respectively arranged on the push rods on both sides of the thin plates. A buffer section 68 is formed by a certain distance between the two limit members. The limit members are adapted to lift the connecting rod 64 upward or push it downward when the push rod cylinder 63 is started. A weighing sensor 62 is also arranged on one side of the support frame 61. The weighing sensor 62 is electrically connected to the push rod cylinder 63.

[0081] The working process of the weighing mechanism 6 is as follows: in the initial state, there is no material on the receiving plate 65. Under the action of the counterweight 66, the receiving plate 65 is blocked on the feeding port 101. When it is necessary to feed material into the mixing chamber 100, the pushing worm 72 pushes the copper oxide powder in the storage box 7 to the receiving plate 65. After the receiving plate 65 successively receives the material, the gravity gradually increases. When the weight on one side of the receiving plate 65 gradually exceeds the weight of the counterweight 66 on the right side, the receiving plate slowly turns over to the inside of the mixing chamber 100, and the counterweight 66 is rotated. The counterweight 66 rotates counterclockwise accordingly. At this time, the connecting rod 64 on one side of the counterweight 66 is displaced in the buffer section 68. When the counterweight 66 gradually turns over and rises to the position of the weighing sensor 62, the weighing sensor 62 is triggered. The weighing sensor 62 feeds back a start signal to the push rod cylinder 63. The push rod cylinder 63 starts, contracts the push rod, and quickly raises the connecting rod on one side of the counterweight 66. According to the lever principle, the receiving plate 65 will quickly turn over to the inside of the mixing chamber 100, thereby achieving the purpose of dumping the material into the mixing chamber 100.

[0082] like Figure 1 As shown, a receiving structure is further provided in the mixing chamber 100 located below the feeding port 101, which is suitable for receiving and buffering the material fed from the feeding port 101 toward the solution in the mixing chamber 100, so as to avoid the solution splashing everywhere when the material is directly poured into the solution. In this embodiment, the receiving structure adopts a receiving plate 3, and the receiving plate 3 is fixed on the inner wall of the mixing chamber 100 and the plate surface is inclined toward the inside of the mixing chamber 100. At least one through hole is provided on the receiving plate 3. In this embodiment, a plurality of through holes are distributed on the receiving plate 3, and the receiving plate 3 is at least partially lower than the height of the overflow port 121 connecting the mixing chamber 100 and the overflow chamber 200. In this embodiment, the receiving plate 3 is immersed below the preset solution level in the mixing chamber 100, and the average height of the receiving surface of the receiving plate 3 from the liquid level is 5 cm. That is, the receiving plate 3 is tilted, and in the vertical direction, the average distance between the position farthest from the liquid surface and the position closest to the liquid surface is 5 cm, and can certainly be 6 cm, 7 cm, etc., depending on specific needs.

[0083] A shower structure is arranged above the receiving plate 3, and the shower structure is fixed on the inner wall of the mixing chamber 100. In this embodiment, the shower structure is a shower pipe 31, and the shower pipe 31 is arranged axially parallel to the receiving surface. The shower ports (not shown in the figure) are evenly distributed on the side wall of the shower pipe 31, and the shower ports are arranged toward the receiving surface. The shower pipe 31 flushes the receiving surface of the receiving plate 3 to prevent the copper oxide powder from being deposited on the receiving surface.

[0084] like Figure 1As shown, an auxiliary mixing device is also provided in the dissolving tank for disturbing the solution and fully dissolving the material. In this embodiment, the auxiliary mixing device includes a stirring device 4 and an air supply system 5. Among them, the stirring device 4 includes a stirring motor 41, a stirring rod 42 and at least one fan blade unit. The stirring motor 41 is arranged at the top of the mixing chamber 100 of the dissolving tank. The driving end of the stirring motor 41 is fixedly connected to the stirring rod 42. The stirring rod 42 is vertically extended and arranged in the mixing chamber 100, and is spaced from the bottom of the mixing chamber 100. The fan blade unit is arranged on the stirring rod 42 along the axial direction of the stirring rod 42; any fan blade unit includes at least two fan blades 43, and the fan blades 43 are distributed on the stirring rod 42 along the radial direction of the stirring rod 42. In this embodiment, four fan blades 43 are provided, and two of them are fixed on the stirring rod 42 symmetrically about the axis of the stirring rod 42.

[0085] The air supply system 5 includes an air blower 51 and an air supply pipe 52. The air blower 51 is arranged outside the dissolving tank. One end of the air supply pipe 52 is connected to the air blower 51, and the other end extends into the working chamber of the dissolving tank. The air supply pipe 52 includes a main air pipe, multiple first branch pipes and multiple second branch pipes. In this embodiment, the main air pipe is connected to the air blower, extends into the dissolving tank and is horizontally arranged at the top of the dissolving tank. The first branch pipe is arranged in the mixing chamber 100 and the overflow chamber 200, wherein two first branch pipes are arranged in the mixing chamber 100, and one first branch pipe is arranged in each overflow chamber 200. One end of the first branch pipe is closed and the other end is connected to the second branch pipe. Multiple air holes are distributed on the first branch pipe. A second branch pipe is arranged in the mixing chamber 100 and each overflow chamber 200, respectively. One end of the second branch pipe is connected to the main air pipe, and the other end is connected to the first branch pipe. When the air blower 51 is started, the solution in the corresponding working chamber can be inflated through the air holes on the first branch pipe, and the solution is disturbed by the airflow to quickly dissolve the material.

[0086] An exhaust pipe 9 is also provided in the dissolving tank, and the exhaust pipe 9 extends horizontally from the overflow chamber 200 farthest from the mixing chamber 100 toward the mixing chamber 100 and penetrates all the working chambers, one end of the exhaust pipe 9 extends out of the dissolving tank, and the other end is located in the mixing chamber 100. Through holes are provided on the exhaust pipe 9 located in each working chamber to facilitate the discharge of air transported by the air supply system 5. A drain pipe 10 connected to the outside is also provided at the bottom of each working chamber to facilitate emptying the solution in the dissolving tank.

[0087] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A material dissolution system, characterized in that: include: Dissolution tank; At least one overflow structure (1) is arranged in the dissolving tank at intervals to divide the dissolving tank into at least two working chambers, and at least one of the working chambers is a mixing chamber (100), and at least one of the working chambers is an overflow chamber (200); a liquid inlet and a feeding port (101) are provided on the mixing chamber (100), and a receiving structure is provided below the feeding port (101) for receiving materials fed from the feeding port; a liquid outlet (103) is provided on the overflow chamber (200) away from the mixing chamber (100), and an overflow port (121) is provided on the overflow structure (1) to communicate with two adjacent working chambers, and the solution overflows step by step through the overflow port and is filtered step by step through a filtering device; A filter device (2) is arranged in the overflow chamber (200), and an inlet of the filter device (2) is connected to the overflow port (121) upstream of the overflow chamber (200); The overflow chamber (200) is provided in plurality and is arranged in sequence on one side of the mixing chamber (100); The filtering device (2) is detachably connected to the overflow port (121); The filtering device (2) comprises: a blocking member and a filtering member, wherein the blocking member is arranged around the overflow port (121), and the filtering member is detachably mounted on the blocking member and is suitable for filtering the solution flowing out of the overflow port (121).

2. The material dissolution system according to claim 1, characterized in that: The height of the overflow port (121) connecting the mixing chamber (100) and the overflow chamber (200) is higher than the height of the overflow port (121) connecting two adjacent overflow chambers (200).

3. The material dissolution system according to claim 2, characterized in that: The height of the overflow port (121) gradually decreases from the mixing chamber (100) to the overflow chamber (200) away from the mixing chamber (100).

4. The material dissolution system according to claim 1, characterized in that: The filter element is a filter bag (21).

5. The material dissolving system according to any one of claims 1 to 4, characterized in that: The receiving structure is arranged in the mixing chamber (100) and is arranged below the feeding port (101) at a distance from the feeding port (101); a projection of the receiving structure in a vertical upward direction at least partially falls on the feeding port (101).

6. The material dissolution system according to claim 5, characterized in that: The receiving structure extends from an inner wall of the mixing chamber (100) on one side away from the overflow chamber (200) to an inner wall of the side close to the overflow chamber (200), and is spaced apart from the inner wall of the mixing chamber (100) close to the overflow chamber (200); and during the extension process, the receiving structure tilts downward toward a side of the feeding port (101).

7. The material dissolution system according to claim 6, characterized in that: The receiving structure is provided with at least one through hole.

8. The material dissolution system according to claim 7, characterized in that: The receiving structure is at least partially lower than the overflow port (121) connecting the mixing chamber (100) and the overflow chamber (200).

9. The material dissolution system according to claim 7, characterized in that: It also comprises a shower structure, which is fixed on the inner wall of the mixing chamber (100) and is located above the receiving structure; the side of the receiving structure facing the feeding port (101) is a receiving surface, and the shower port of the shower structure is arranged towards the receiving surface.

10. The material dissolution system according to claim 1, characterized in that: Also includes: The auxiliary mixing device is at least arranged in the mixing chamber (100) and is suitable for disturbing the solution and dissolving the material.

11. The material dissolution system according to claim 10, characterized in that: The auxiliary mixing device comprises a stirring device (4), and the stirring device (4) comprises: A stirring motor (41) is arranged outside the dissolving tank; A stirring rod (42) connected to the driving end of the stirring motor (41); the stirring rod (42) extends from the top to the bottom of the mixing chamber (100) and is spaced apart from the bottom; At least one fan blade unit is arranged on the stirring rod (42) along the axial direction of the stirring rod (42); any of the fan blade units comprises at least two fan blades (43) which are distributed on the stirring rod (42) along the radial direction of the stirring rod (42).

12. The material dissolution system according to claim 10 or 11, characterized in that: The auxiliary mixing device comprises an air supply system (5), and the air supply system (5) comprises: A blower (51) is arranged outside the dissolving tank; An air supply pipe (52) connected to the air supply fan (51) and extending into the working chamber; At least one air hole is distributed on the air supply pipe (52).

13. The material dissolution system according to claim 12, characterized in that: The air supply pipe (52) comprises: A main air duct connecting the air blower (51) and the working chamber; A plurality of first branch pipes are horizontally arranged at the bottom of the working chamber; A plurality of second branch pipes are vertically arranged in the working chamber, and one end of the second branch pipes is connected to the main air duct, and the other end of the second branch pipes is connected to the first branch pipe; The air vent is arranged on the first branch pipe.

14. The material dissolving system according to any one of claims 1 to 4, characterized in that: It also includes a weighing mechanism (6) arranged at the feeding port (101); the weighing mechanism (6) includes: A support frame (61) is arranged on the dissolving tank; A weighing sensor (62) is mounted on the support frame (61) and sends a start signal when triggered; A material receiving assembly is hingedly arranged at the material feeding port (101); the material receiving assembly is suitable for sealing the material feeding port (101) or turning over into the mixing chamber (100) to open the material feeding port (101); a driver, fixed on the support frame (61) and electrically connected to the weighing sensor (62); the driver is adapted to drive the material receiving assembly to flip toward the inside of the material mixing chamber (100) after receiving the start signal; a buffer section (68) is provided between the driving end of the driver and the material receiving assembly; When receiving the material, the material receiving assembly rotates around the hinge and generates displacement in the buffer section (68), and triggers the weighing sensor (62) when the material reaches a preset weight.

15. The material dissolution system according to claim 14, characterized in that: The material receiving assembly comprises: A connecting rod (64), the middle of which is hinged at the feeding port (101); A material receiving plate (65) is fixed to one end of the connecting rod (64) and a sealing cover is arranged on the material feeding port (101); A counterweight (66) is fixed to the other end of the connecting rod (64); the counterweight (66) is adapted to move along the buffer section (68) when the receiving plate (65) receives the material and trigger the weighing sensor (62) after reaching a preset weight.

16. The material dissolving system according to claim 15, characterized in that: Also includes: A material storage box (7) is arranged above the weighing mechanism (6), and a material discharge port (71) is arranged below the material storage box; A pushing worm (72), arranged at the discharge port (71), adapted to push the material in the storage box (7) onto the receiving plate (65); An upper limit switch (73) and a lower limit switch (74) for materials are respectively arranged in the material storage box (7).

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