CN116393070B

CN116393070B - Copolymer for preparing developing solution by slowly releasing dissolved oxygen and use method thereof

Info

Publication number: CN116393070B
Application number: CN202310382427.1A
Authority: CN
Inventors: 王建荣; 王博宇; 刘伟
Original assignee: Kunshan Sigo Microelectronics Materials Co ltd
Current assignee: Kunshan Sigo Microelectronics Materials Co ltd
Priority date: 2023-04-11
Filing date: 2023-04-11
Publication date: 2024-01-23
Anticipated expiration: 2043-04-11
Also published as: CN116393070A

Abstract

The invention relates to a wet electronic chemical technology, in particular to a co-polymer for preparing developing solution by slowly releasing dissolved oxygen and a use method thereof, wherein the co-polymer comprises a tank structure for preparing each reagent in a co-polymerization way and forming the developing solution by constant volume, an auxiliary mixing mechanism and a slowly releasing dissolved oxygen mechanism; the auxiliary mixing mechanism is used for promoting the full mixing reaction of each reagent and the developer in sequence in the tank body structure in a mechanical stirring mode; the slow-release oxygen dissolving mechanism is used for introducing nitrogen from the bottom of the tank body structure. The dissolution rate of each reagent and the developer can be accelerated through the auxiliary mixing mechanism, the protective gas nitrogen is introduced from the bottom of the tank body structure through the slow-release oxygen dissolving mechanism, the nitrogen is uniformly filled into the solution under the action of the auxiliary mixing mechanism, and excessive and insoluble nitrogen in the solution can take away part of oxygen originally dissolved in the solution, so that part of nitrogen and a small amount of oxygen overflow from the solution, and the reduction of the oxygen content in the finally prepared developer is ensured.

Description

Copolymer for preparing developing solution by slowly releasing dissolved oxygen and use method thereof

Technical Field

The invention relates to a wet electronic chemical technology, in particular to a copolymer for preparing developing solution by slowly releasing dissolved oxygen and a use method thereof.

Background

The developer is a chemical agent, which is an important role in determining the quality of printing, and the selection of an excellent developer for proper development is a first important matter of image formation. The basic composition of the developing solution is formed by combining the following four components: 1. developer, 2, protective agent, 3, accelerator, 4, inhibitor; the developer is the principal agent of the developer and acts to reduce the sensitized silver halide particles to metallic silver. The protective agent has the function of reducing the influence of the oxidation of the air on the developer and reducing the content of oxide with strong pollution. The accelerator has the function of adjusting the hydrogen ion concentration of the developer and keeping the necessary alkaline accelerating developer developing function. The inhibitor functions to prevent the unexposed silver halide particles from being developed too quickly, thereby functioning to inhibit fog.

In the industrial preparation process of the developer, in order to reduce the risk of oxidization of the developer, closed environment production is often adopted; in the preparation process, the medicines are sequentially and slowly added according to the formula sequence, and are continuously stirred, one medicine is completely dissolved and then the other medicine is put into the medicine, and the finished medicine is prepared strictly according to the specification. Developer, protectant, accelerator and inhibitor are added in sequence, and water is added to the total amount. The produced finished product developer needs to be covered in time to prevent the liquid medicine from contacting with air and oxidizing so as to reduce the drug effect.

Because the solution is prepared in a closed environment, the oxidation effect of oxygen in the ambient air on the developing solution is not obvious, and mainly comes from dissolved oxygen in the solution; in the current production process, oxygen dissolved in the solution often affects the efficacy of the developing solution, and even causes the developing solution to lose efficacy over time, so that the quality guarantee period of the developing solution is shorter.

Disclosure of Invention

The invention aims to provide a copolymer for preparing developing solution by slowly releasing dissolved oxygen and a use method thereof, so as to solve the problems in the prior art.

In order to achieve the above purpose, the present invention provides the following technical solutions:

a co-polymer for preparing a developing solution by slowly releasing dissolved oxygen, comprising:

the tank body structure is used for preparing each reagent through copolymerization and forming developing solution by constant volume, wherein the tank body structure comprises a copolymerization tank and a tank cover which is arranged at the top of the copolymerization tank in an openable and closable manner, and the copolymerization tank is arranged on the frame body;

the auxiliary mixing mechanism is used for promoting the reagents to be fully mixed with the developer in sequence in the tank body structure in a mechanical stirring mode;

the slow-release oxygen dissolving mechanism is used for introducing nitrogen from the bottom of the tank body structure and forming low pressure at the upper part of the tank body structure.

The copolymer for preparing the developing solution by the slow-release dissolved oxygen: an air cavity is formed between the upper layer of the solution liquid level in the tank body structure and the top wall of the tank cover, and the slow-release oxygen dissolving mechanism comprises a booster pump and a pressure relief pump which are arranged on the outer wall of the copolymerization tank, wherein the pressure relief pump and the booster pump are arranged one above the other; the air inlet of the booster pump is communicated with the nitrogen tank, and the air outlet of the booster pump is communicated with the bottom of the copolymerization tank through an air blowing pipe; an air inlet of the pressure relief pump is communicated with an air cavity above the inside of the tank body structure through an exhaust pipe, and an air outlet of the pressure relief pump is communicated with the outside atmosphere;

a copolymerization motor is fixedly arranged at one side of the booster pump, the output end of the copolymerization motor is rotatably provided with a main shaft, and the main shaft penetrates through a pump shell of the booster pump and one side of the copolymerization tank and stretches into the copolymerization tank; one section of the main shaft extending into the pump shell of the booster pump is coaxially fixed with the impeller shaft of the booster pump, one end of the impeller shaft of the pressure relief pump extends out of the pressure relief pump from one side of the pump shell of the pressure relief pump, one section of the impeller shaft of the pressure relief pump extending out of the pump shell of the pressure relief pump is connected with the main shaft through a transmission belt, and the main shaft and the impeller shaft of the pressure relief pump are in speed-increasing transmission through the transmission belt.

The copolymer for preparing the developing solution by the slow-release dissolved oxygen: the auxiliary mixing mechanism comprises a central shaft which is rotatably arranged in the center of the inside of the copolymerization tank, two built-in transverse frames which are distributed in a high-low mode are fixedly arranged in the copolymerization tank, and the upper part and the lower part of the central shaft are respectively in rotary fit with the centers of the two built-in transverse frames;

A first bevel gear is fixedly arranged at one end of the main shaft extending into the copolymerization tank, and is meshed with a bevel gear disc fixedly arranged on the central shaft;

a plurality of web shafts are rotatably arranged on the central shaft along the axial direction of the central shaft, blades are fixedly arranged on the web shafts, and a second bevel gear is fixedly arranged at one end, far away from the central shaft, of each web shaft; two groups of ring frames are fixedly mounted on the inner wall of the copolymerization tank, a plurality of bevel gear sections are fixedly arranged on each group of ring frames at equal intervals, the two groups of ring frames are symmetrical about the plane where the web shaft is located, two adjacent bevel gear sections on the two groups of ring frames are staggered with each other and have dislocation gaps, and the second bevel gear is matched with the bevel gear sections.

The copolymer for preparing the developing solution by the slow-release dissolved oxygen: the device comprises a tank cover, a discharge motor, a plurality of distributing tanks, a speed reducer, a transposition shaft, a plurality of discharging motors, a plurality of discharging shafts and a plurality of discharging shafts, wherein the distributing tanks are fixedly arranged on the tank cover;

the transposition shaft is matched with a discharging valve group arranged at the bottom of the distributing tank, and penetrates through the center of the tank cover and is in rotating fit with the tank cover.

The copolymer for preparing the developing solution by the slow-release dissolved oxygen: the central shaft is provided with a gas dividing valve assembly which is used for intermittently injecting nitrogen pumped by the booster pump into the bottom of the tank structure and the material dividing tank;

The valve dividing valve assembly comprises a first valve group and a second valve group, the first valve group is arranged at the lower end of the central shaft, and the second valve group is connected with the upper end of the central shaft through a switching structure.

The copolymer for preparing the developing solution by the slow-release dissolved oxygen: the first valve group comprises a first valve shell which is fixedly connected with the built-in transverse frame at the lower part, and a first sealing gasket is also arranged between the edge of the bottom end face of the built-in transverse frame at the lower part and the inner wall of the first valve shell in a cushioning manner;

the outer wall of the first valve casing is fixedly provided with a casing, the center of the inside of the central shaft is provided with an air passage, the center of the bottom end face of the built-in cross frame at the lower part is fixedly connected with a bottom cap, and the side edge of the bottom cap is provided with an annular hole; the valve is characterized in that a valve ball is arranged in the first valve shell, a valve channel is arranged in the center of the valve ball, the lower part of the valve channel penetrates through the valve ball, and the valve ball is fixedly connected with the bottom cap through a bolt;

an inner channel is horizontally arranged in the center of the valve ball, the inner channel penetrates through the valve channel, a closed channel is arranged on the inner wall of the first valve casing, a circular channel with a major arc shape is horizontally arranged on the inner wall of the first valve casing, and the circular channel is communicated with the inner wall of the first valve casing; the inner wall of the shell is provided with a ring cavity which is arranged in a ring way, the ring cavity is communicated with the annular opening through air holes, and a plurality of check valves are arranged on the outer wall of the shell at equal intervals along the circumference;

The check valve is communicated with the annular cavity, one end of the air-blowing pipe, which is communicated with the bottom of the copolymerization tank, is communicated with the valve passage through a hard pipe, and the closed passage is arranged between two ends of the annular opening passage.

The copolymer for preparing the developing solution by the slow-release dissolved oxygen: the second valve group is used for sequentially injecting nitrogen in the air channel into the corresponding material distributing tank according to the material adding sequence of each reagent, the switching structure comprises an air cone fixed on the built-in transverse frame on the upper part, a second sealing gasket is arranged between the inner wall of the lower part of the air cone and the top end face of the built-in transverse frame on the upper part, the air cone is hollow inside and is communicated at two ends, the top of the air cone is conical, an inner cavity is arranged inside the transposition shaft, the inner cavity is communicated with the lower end of the transposition shaft, and a circle of rubber ring is arranged on the inner wall of the lower end of the transposition shaft.

The copolymer for preparing the developing solution by the slow-release dissolved oxygen: the second valve bank is arranged in the center of the inner wall of the tank cover, the second valve bank comprises a second valve shell fixed in the center of the inner wall of the tank cover, a third sealing gasket is arranged between the upper section of the transposition shaft and the tank cover, and the transposition shaft penetrates through the second valve shell and is in running fit with the second valve shell;

a fourth sealing gasket is arranged between the second valve casing and the tank cover, and a fifth sealing gasket is arranged between the second valve casing and the transposition shaft; a plurality of air chambers are arranged in the second valve housing along the circumference, the inner side wall of each air chamber is provided with an inlet hole, the transposition shaft is provided with an outlet hole at the equal height of the inlet hole, and the outlet hole is communicated with the inner cavity;

Each air chamber is communicated with the upper part of the distributing tank at the corresponding position through a conduit.

The copolymer for preparing the developing solution by the slow-release dissolved oxygen: the feeding valve group comprises a feeding valve arranged at the bottom of the material distributing tank, an opening and closing switch is arranged on the feeding valve, a shifting knob is fixedly arranged on the outer wall of the transposition shaft, a sleeve column is fixedly arranged at the bottom of the material distributing tank, a torsion spring is sleeved on the sleeve column, one side of the torsion spring is connected with the shifting knob, the other side of the torsion spring is attached to a stop lever, and the stop lever is fixedly arranged at the bottom of the material distributing tank.

A method of formulating a developer using a co-polymer as described above, comprising the steps of:

step one, debugging equipment, starting a copolymerization motor to stably run under no-load condition, checking whether leakage exists at each joint, and observing the running stability of each part in the copolymerization tank through a detection hole arranged on the outer wall of the copolymerization tank; the angle sensor sends a signal to the main control panel to turn off the discharge motor in time after the transposition shaft rotates 360 degrees, and whether the transposition shaft after the discharge motor is turned off is at a preset initial position;

step two, uncovering, starting an electric jacking device, jacking the tank cover by the electric jacking device to separate the tank cover from the copolymerization tank, and then injecting developer into the copolymerization tank to ensure that the total liquid level does not submerge the upper port of the exhaust pipe after all the reagents in each material distribution tank are injected into the copolymerization tank;

Step three, pre-adding reagent, and reversely starting an electric jacking device to completely seal the tank cover and the copolymerization tank; opening the top cover, adding a protective agent, an accelerator, an inhibitor and water into each material distributing tank one by one along the rotation direction of the transposition shaft according to the addition sequence of each reagent, and finally closing the top cover;

step four, preparing developing solution, connecting an air inlet of a booster pump with a nitrogen tank, starting a copolymerization motor, and stopping the copolymerization motor after a transposition shaft rotates for 360 degrees; standing for 24 hours until all components are fully dissolved, receiving a little of finished product developing solution from a liquid discharge valve, detecting the pH value of the finished product developing solution, and discharging all the finished product developing solution by opening the liquid discharge valve;

step five, cleaning equipment, uncapping again, injecting clean water into the copolymerization tank and each material distributing tank, connecting an air inlet of a booster pump with the outside environment atmosphere, and then starting a copolymerization motor to clean the copolymerization tank and the material distributing tanks; after the copolymerization motor is shut down, the drain valve is opened to completely drain clear water in the tank structure, then the copolymerization motor is started again, and the material distributing tank, the tank structure and all parts in the tank structure are dried by air blowing.

Compared with the prior art, the invention has the beneficial effects that: according to the invention, the dissolution rate of each reagent and the developer can be accelerated through the auxiliary mixing mechanism, the slow-release oxygen dissolving mechanism is used for introducing protective gas nitrogen from the bottom of the tank body structure, the nitrogen is uniformly filled in the solution under the action of the auxiliary mixing mechanism, and excessive and insoluble nitrogen in the solution can take away part of oxygen originally dissolved in the solution, so that part of nitrogen and a small amount of oxygen overflow from the solution and enter the air cavity, the oxygen content in the finally prepared developing solution is ensured to be reduced, the oxidation period of the finished developing solution is prolonged, and the quality guarantee period of the finished product is prolonged; the slow-release oxygen dissolving mechanism can also exhaust outwards from the air cavity continuously, exhaust overflowed nitrogen and oxygen from the air cavity, keep the air cavity in a low-pressure state, and reduce the dissolution rate of the solution to oxygen in a low-pressure environment.

The blade rotates around the central shaft to enable the solution to generate horizontal vortex, and the rotation of the blade can enable the solution to generate surging in the vertical direction, so that the mixing and stirring direction is more comprehensive, the mixing and dissolving uniformity and speed of each reagent and the developer can be improved, and the distribution uniformity and speed of nitrogen in the solution can be improved.

The rotation directions of the spoke shaft and the blade are in positive and negative alternation, so that the vertical surge amplitude of the solution in the tank structure can be reduced, and particularly, the splashing generated by the upper layer of the solution can be reduced; the effect of improving the running stability and the silence of the whole equipment is achieved.

The nitrogen pumped by the booster pump can be intermittently injected into the bottom of the tank body structure and the distributing tank by using the distributing valve assembly.

The nitrogen in the air flue is sent into the corresponding material distributing tank through the inner cavity, so that positive pressure is generated in the material distributing tank, on one hand, the dissolved nitrogen amount in the reagent in the material distributing tank can be improved before the material discharging valve group is opened, and then the dissolved oxygen amount in the reagent is reduced; on the other hand, when the discharging valve group is opened, the reagent in the distributing tank can be rapidly discharged into the tank body structure.

Drawings

FIG. 1 is a schematic diagram of a structure of a copolymer for preparing a developing solution by slowly releasing dissolved oxygen;

FIG. 2 is a schematic diagram of a structure of a view angle of a copolymer for preparing a developing solution by slowly releasing dissolved oxygen;

FIG. 3 is a schematic diagram of a further view of a copolymer for preparing a developing solution by slowly releasing dissolved oxygen;

FIG. 4 is a schematic view of the structure with the copolymerization tank removed;

FIG. 5 is a schematic view of the structure of the inside of the copolymerization tank;

FIG. 6 is a schematic view of the structure of FIG. 5 from another perspective;

FIG. 7 is a schematic view of the structure of FIG. 6 with the resistance wire and blade removed;

FIG. 8 is a schematic view of the configuration of the ring carrier and the bevel gear segments;

FIG. 9 is a schematic partial construction of the auxiliary mixing mechanism;

FIG. 10 is a schematic view of the structure of FIG. 9 with the upper and lower ends of the central shaft partially cut away;

FIG. 11 is an enlarged view of FIG. 10 at A;

FIG. 12 is an enlarged view at B in FIG. 10;

FIG. 13 is a schematic view of the valve housing and housing partially in section;

FIG. 14 is a schematic view of a valve ball partially in section;

fig. 15 is a schematic view of the structure of the can lid and the discharge motor;

FIG. 16 is a schematic view of the structure of FIG. 15 in another orientation;

FIG. 17 is a schematic view of the can lid in half-section;

fig. 18 is an enlarged view of fig. 17 at C;

FIG. 19 is a schematic view of the structure of the dispensing can at the bottom of the can lid;

FIG. 20 is an enlarged view of D in FIG. 19;

FIG. 21 is a schematic view of a valve housing II partially in section;

in the figure: 1-a frame body; 2-a copolymerization tank; 3-a tank cover; 4-an electric jacking device; 5-an electric heating controller; 6-resistance wire; 7-a general control panel; 8-a copolymerization motor; 9-a booster pump; 10-a pressure relief pump; 11-a transmission belt; 12-air blowing pipe; 13-an exhaust pipe; 14-a hard tube; 15-a built-in cross frame; 16-a main shaft; 17-a first bevel gear; 18-conical fluted disc; 19-a central axis; 20-web axis; 21-a second bevel gear; 22-ring frames; 23-bevel segments; 24-leaf; 25-frames; 26-tripod; 27-air cone; 28-valve housing number one; 29-valve ball; 30-valve way; 31-inner lane; 32-bolts; 33-a bottom cap; 34-ring hole; 35-closing the channel; 36-airway; 37-roller; 38-a first gasket; 39-annular opening; 40-a housing; 41-an annulus; 42-air holes; 43-check valve; 44-a second gasket; 45-discharging a motor; 46-a decelerator; 47-a material distributing tank; 48-transposition shaft; 49-valve casing II; 50-a third gasket; 51-fourth gasket; 52-lumen; 53-a fifth gasket; 54-hole outlet; 55-air chamber; 56-hole inlet; 57-dial button; 58-on-off switch; 59-a feed valve; 60-sleeve column; 61-torsion spring; 62-stop lever; 63-a catheter; 64-sixth gasket.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments.

Referring to fig. 1 to 21, as an embodiment of the present invention, the co-polymer for preparing the developing solution by slowly releasing dissolved oxygen includes a frame 1 and a co-polymer tank 2 fixedly disposed on the frame 1, wherein a tank cover 3 capable of being opened and closed is sealingly disposed on the top of the co-polymer tank 2;

referring to fig. 1 to 3, when the can lid 3 and the copolymerization can 2 are closed, they form a sealed can structure for copolymerization of developer, protective agent, promoter, and inhibitor in the can structure to form developer.

Before constant volume preparation, firstly injecting 3/4 of the total amount of developer into the copolymerization tank 2, and then covering the tank cover 3 and the copolymerization tank 2; sequentially adding a protective agent, an accelerator and an inhibitor into the tank body structure according to a proportion; and finally adding water to the full amount to enable the developer, the protective agent, the accelerator, the inhibitor and the water to be fully mixed and copolymerized in the tank structure to form the developer. Standing for 24 hours until each component is fully dissolved, and measuring the pH value to be more than 10 to prove that the preparation is finished.

An electric jacking device 4 is vertically and fixedly arranged on the frame body 1, and the upper end of the electric jacking device 4 is fixedly connected with the outer wall of the tank cover 3;

specifically, the electric jacking device 4 comprises a device shell, a lifting motor is fixedly arranged at one side of the lower part of the device shell, an output shaft of the lifting motor extends into the lower part of the interior of the device shell, the output shaft is coaxially fixed with a worm rotatably arranged in the device shell, the worm is matched with a worm wheel, the worm wheel is fixed at the lower part of a screw rod, and the screw rod is vertically rotatably arranged in the device shell;

the screw rod is in threaded fit with the jacking rod, the jacking rod penetrates out of the top of the device shell and is in vertical sliding fit with the device shell, and one end of the jacking rod penetrating out of the top of the device shell is fixedly connected with the outer wall of the tank cover 3.

The output shaft is driven to rotate by the lifting motor, and then the worm is driven to rotate by the output shaft; the worm is utilized to drive the worm wheel to rotate, and the worm wheel drives the screw rod to rotate; the lifting rod is driven to lift by rotation of the lead screw, and finally the tank cover 3 is driven to vertically move so as to realize the control of opening and closing of the tank cover 3 and the copolymerization tank 2.

Of course, the electric jacking device 4 may be an electric cylinder, a hydraulic cylinder, or the like, and is not particularly limited herein.

In addition, filtration is required after the preparation is completed, and precipitates in the developing solution are removed.

The proper temperature increase in the process of the mixed copolymerization reaction can increase the dissolution rate of the reaction and the medicine; and the oxygen content in the solution can be reduced by proper heating, so that the oxygen content in the finally prepared developing solution is reduced, the oxidation period of the finished developing solution is prolonged, and the shelf life of the finished product is prolonged.

For this purpose, an electrical heating structure is provided inside the copolymerization tank 2, said electrical heating structure being located inside the tank structure near the bottom.

Referring to fig. 1, 5 and 6, the electric heating structure includes an electric heating controller 5 fixedly installed on the outer wall of the copolymerization tank 2, a resistance wire 6 is fixedly installed in the copolymerization tank 2, and the resistance wire 6 is electrically connected with a power supply through the electric heating controller 5;

and a main control panel 7 is fixedly arranged on the frame body 1, and the main control panel 7 is communicated with the electric heating controller 5.

The total control panel 7 sends signals to the electric heating controller 5, so that the current of the resistance wire 6 can be regulated and controlled, the power of the resistance wire 6 is further controlled, and finally the heating temperature of the resistance wire 6 is controlled; meanwhile, the on-off of the resistance wire 6 and the power supply can be controlled, namely, the on-off of the resistance wire 6 is controlled.

In the mixing and copolymerizing process, the temperature in the tank structure is maintained at about 50 ℃ by controlling the heating power of the resistance wire 6, and the temperature is too low, so that the reaction rate is not improved, and the reagents are dissolved; while excessive temperatures can cause the reagents to fail.

An auxiliary mixing mechanism and a slow-release oxygen dissolving mechanism are also arranged in the tank body structure, and the auxiliary mixing mechanism is mechanically matched with the slow-release oxygen dissolving mechanism;

the auxiliary mixing mechanism promotes each reagent in the tank structure to be fully mixed with the developer in sequence through a mechanical stirring mode;

and the slow-release oxygen dissolving mechanism is used for introducing nitrogen from the bottom of the tank body structure and forming low pressure at the upper part of the tank body structure.

Note that, in the process of preparing the developing solution, the solution does not completely fill the entire space in the tank structure, and the liquid level does not exceed 3/4 of the copolymerization tank 2; an air cavity is formed between the upper liquid level layer and the top wall of the tank cover 3.

The dissolution rate of each reagent and the developer can be accelerated through the auxiliary mixing mechanism, the slow-release oxygen dissolving mechanism is used for introducing protective gas nitrogen from the bottom of the tank body structure, the nitrogen is uniformly filled into the solution under the action of the auxiliary mixing mechanism, and excessive and insoluble nitrogen in the solution can take away part of oxygen originally dissolved in the solution, so that part of nitrogen and a small amount of oxygen overflow from the solution and enter the air cavity; and the slow-release oxygen dissolving mechanism can also exhaust outwards from the air cavity continuously, exhaust overflowed nitrogen and oxygen from the air cavity and keep the air cavity in a low-pressure state.

The dissolved oxygen in the solution is separated out by utilizing the principles of Dalton partial pressure law and Henry law, so as to achieve the purpose of reducing the dissolved oxygen.

Dalton partial pressure law: the total pressure of the mixed gas in any closed vessel is equal to the sum of the partial pressures of the various gases, i.e. pstotal=pnitrogen+poxygen+phydrogen.

Henry's law that the gas dissolved in a solution in a closed container is proportional to the partial pressure of the gas above the water surface. According to the law, under the condition of unchanged pressure, the content of nitrogen is increased, so that the contents of gases such as oxygen, hydrogen, carbon dioxide and the like can be reduced, and the partial pressure of oxygen can be directly reduced, thereby achieving the purpose of reducing the dissolved oxygen content in the solution.

In short, the total amount of gas that can be dissolved in the solution is constant, and when the amount of one gas dissolved is increased, the amount of other gas dissolved is decreased. The dissolved oxygen content in the solution is reduced by continuously charging nitrogen into the solution, so as to dilute the oxygen content in the solution; with the continuous filling of nitrogen, the ratio of oxygen in the solution can be slowly reduced, and the effect of slowly reducing the dissolved amount of oxygen in the diluted solution is realized.

In addition, the low-pressure environment is combined with a heating working condition, so that on one hand, the dissolution rate of the solution to the gas can be reduced, on the other hand, a large amount of vapor can be generated by the solution, the gas released from the solution can be scattered along with the vapor, the dissolution amount of the gas in the solution is further reduced, and finally the dissolved oxygen amount is reduced.

Because nitrogen does not react with each reagent and developer, the nitrogen is often used as a protective gas in various chemical production.

Referring to fig. 2-6, the slow release oxygen dissolving mechanism comprises a booster pump 9 and a pressure release pump 10 which are arranged on the outer wall of the copolymerization tank 2, wherein the pressure release pump 10 and the booster pump 9 are arranged in a high-low mode; the air inlet of the booster pump 9 is communicated with the nitrogen tank, and the air outlet of the booster pump 9 is communicated with the bottom of the copolymerization tank 2 through an air blast pipe 12; an air inlet of the pressure relief pump 10 is communicated with an air cavity above the inside of the tank body structure through an exhaust pipe 13, and an air outlet of the pressure relief pump 10 is communicated with the outside atmosphere;

a copolymerization motor 8 is fixedly arranged on one side of the booster pump 9, a main shaft 16 is rotatably arranged at the output end of the copolymerization motor 8, and the main shaft 16 penetrates through a pump shell of the booster pump 9 and one side of the copolymerization tank 2 to extend into the copolymerization tank 2; one section of the main shaft 16 extending into the pump shell of the booster pump 9 is coaxially fixed with the impeller shaft of the booster pump 9, one end of the impeller shaft of the pressure relief pump 10 extends out of the pressure relief pump 10 from one side of the pump shell of the pressure relief pump 10, one section of the impeller shaft of the pressure relief pump 10 extending out of the pump shell of the pressure relief pump 10 is connected with the main shaft 16 through a transmission belt 11, and the main shaft 16 and the impeller shaft of the pressure relief pump 10 are in speed-increasing transmission through the transmission belt 11.

The copolymerization motor 8 is also in communication with the general control panel 7.

Obviously, the main shaft 16 is in sealing and rotating fit with the pump shell of the booster pump 9, the impeller shaft of the pressure relief pump 10 is in sealing and rotating fit with the pump shell of the pressure relief pump 10, and the specifications of the booster pump 9 and the pressure relief pump 10 are the same.

The booster pump 9 is used for continuously filling nitrogen in the nitrogen tank into the tank structure from the bottom of the tank structure, one part of the nitrogen filled into the tank structure is dissolved into the solution, and the other part overflows from the solution and takes away a small amount of gases such as oxygen, hydrogen, carbon dioxide and the like; the overflowed gas enters the air cavity; the pressure in the air cavity is reduced by continuously discharging the air in the air cavity by the pressure release pump 10, so that a low-pressure environment is formed in the air cavity.

The same motor (a copolymerization motor 8) is shared between the pressure release pump 10 and the booster pump 9, so that the two motors are synchronously started and stopped, the specifications of the booster pump 9 and the pressure release pump 10 are the same, but after the pressure increase transmission through the transmission belt 11, the operation speed of the pressure release pump 10 is slightly higher than that of the booster pump 9; namely, the total amount of nitrogen pumped into the tank body structure in unit time is slightly smaller than the gas discharge amount in the gas cavity, and after the two pumps are arranged in such a way, the gas pressure in the gas cavity is continuously and slowly reduced.

Referring to fig. 6 to 9, the auxiliary mixing mechanism includes a central shaft 19 rotatably disposed in the center of the inside of the copolymerization tank 2, two built-in cross frames 15 distributed in a height-to-height manner are fixedly installed in the copolymerization tank 2, and the upper and lower parts of the central shaft 19 are respectively in rotational fit with the centers of the two built-in cross frames 15;

a first bevel gear 17 is fixedly arranged at one end of the main shaft 16 extending into the copolymerization tank 2, and the first bevel gear 17 is meshed with a bevel gear disk 18 fixedly arranged on a central shaft 19;

a plurality of web shafts 20 are rotatably arranged on the central shaft 19 along the axial direction thereof, blades 24 are fixedly arranged on the web shafts 20, and a second bevel gear 21 is fixedly arranged at one end of the web shafts 20 away from the central shaft 19; two groups of ring frames 22 are fixedly arranged on the inner wall of the copolymerization tank 2, a plurality of bevel gear sections 23 are fixedly arranged on each group of ring frames 22 at equal intervals, the two groups of ring frames 22 are symmetrical about the plane where the web shaft 20 is located, two adjacent bevel gear sections 23 on the two groups of ring frames 22 are staggered with each other, a staggered gap exists, and the second bevel gear 21 is matched with the bevel gear sections 23.

A hanging bracket is vertically and fixedly arranged on the built-in transverse frame 15 at the upper part, one section of the main shaft 16 close to the central shaft 19 is in running fit with the lower part of the hanging bracket, and the main shaft 16 can be kept stable through the arranged hanging bracket, so that the circle run-out of the main shaft 16 is eliminated.

When the copolymerization motor 8 works, the booster pump 9 and the pressure relief pump 10 can be driven to work, the bevel gear disk 18 can be driven to rotate through the first bevel gear 17, the bevel gear disk 18 drives the central shaft 19 to rotate, and then the plurality of spoke shafts 20 and blades 24 fixed on the spoke shafts 20 rotate around the central shaft 19 to play a role in horizontal mixing and stirring.

Meanwhile, the second bevel gear 21 is matched with the bevel gear section 23 to drive the web shaft 20 to rotate and further drive the blades 24 to rotate, so that the blades 24 do circular motion and horizontal mixing and stirring, and meanwhile, the solution is vertically mixed and stirred.

The blade 24 rotates around the central shaft 19 to generate horizontal vortex flow on one side, and the rotation of the blade can make the solution generate surging in the vertical direction, so that the mixing and stirring direction is more comprehensive, the mixing and dissolving uniformity and speed of each reagent and the developer can be improved, and the distribution uniformity and speed of nitrogen in the solution can be improved.

Note that, just because the adjacent two bevel gear sections 23 on the two sets of ring frames 22 are mutually staggered, the rotation directions of the web shaft 20 and the blades 24 are in positive and negative alternation, and compared with unidirectional rotation, the arrangement can reduce the vertical surge amplitude of the solution in the tank structure, especially the splashing generated by the upper layer of the solution; the effect of improving the running stability and the silence of the whole equipment is achieved.

A dislocation gap is arranged between two adjacent bevel gear sections 23 on two groups of ring frames 22, so that the blades 24 and the web shafts 20 are converted from forward rotation to reverse rotation, or buffer time is reserved in the process of converting reverse rotation into forward rotation, and in the buffer time, the rotation of the blades 24 mainly depends on inertia; because the blades 24 are in solution, the resistance is high, and the inertial rotation speed can be effectively reduced, so that the load of the copolymerization motor 8 is reduced.

By way of illustration, the current stage blade 24 cooperates with the upper cone segment 23, in which case the blade 24 rotates in a forward direction, and after the second cone gear 21 is separated from the cone segment 23, the second cone gear 21 does not immediately engage with the lower adjacent cone segment 23, but leaves a buffer period; during the buffering period, the blades 24 which are kept rotating forward by inertia are subjected to resistance of the solution to gradually reduce the rotating speed, and even do not rotate any more; the second bevel gear 21 is meshed with the lower adjacent bevel gear section 23, and the driving blade 24 is reversely rotated;

if the second bevel gear 21 is meshed with the adjacent lower bevel gear segment 23 immediately after being separated from the bevel gear segment 23, the blades 24 need to be immediately reversed, and no reduction time is left for the blades 24, so that the driving torque of the central shaft 19 is increased, and the load of the copolymerization motor 8 is increased.

For example, in the present state, the blade 24 is engaged with the upper bevel gear segment 23, and at this time, the blade 24 is rotating forward at a rotation speed of +45r/min, and after the second bevel gear 21 is separated from the bevel gear segment 23, the blade 24 is subjected to resistance of the solution to gradually reduce the rotation speed, or does not rotate any more; if the second bevel gear 21 is meshed with the adjacent bevel gear section 23 at the lower part after the rotation speed is reduced to +15r/min, the central shaft 19 needs to provide a small torque to drive the blades 24 to rotate reversely from the positive direction of +15r/min to the rotation speed of-45 r/min;

if the second bevel gear 21 is meshed with the lower adjacent bevel gear segment 23 immediately after being separated from the bevel gear segment 23, the central shaft 19 needs to provide a larger torque to drive the blades 24 to rotate reversely from the positive direction of +45r/min to the rotational speed of-45 r/min.

Referring to fig. 7, 9, 10, 11, and 12, a ring of flange is respectively disposed at the upper and lower parts of the central shaft 19, a groove is formed on one surface of the flange facing the built-in cross frame 15, the cross section of the groove is in a major arc shape, a gap is formed on one side of the groove facing the built-in cross frame 15, a plurality of rollers 37 are embedded in the groove in a rolling manner, and the rollers 37 protrude from the gap and are in rolling engagement with the built-in cross frame 15.

After the grooves, the notches and the rollers 37 are arranged, the central shaft 19 can be in running fit with the built-in cross frames 15 at the upper part and the lower part, the function equivalent to a bearing is achieved, and the rolling contact mode can effectively reduce the running friction force of the central shaft 19 and the built-in cross frames 15.

In addition, in order to increase the stability of the web shaft 20 and reduce the circle runout, a frame 25 is fixedly arranged on the central shaft 19, and a section of the web shaft 20 close to the inner wall of the copolymerization tank 2 passes through the frame 25 and is rotationally connected with the frame 25;

in addition, in order to increase the stability of the frame 25, a tripod 26 is fixedly disposed at each of the upper and lower portions of the frame 25, and the tripod 26 is fixedly connected to the central shaft 19.

The triangle has stability, and thus, functions as a reinforcing rib by being fixed to the central shaft 19 at the upper and lower sides of the frame 25 through a tripod 26, respectively.

Referring to fig. 10-14, a first valve group is disposed at the lower end of the central shaft 19, the first valve group includes a first valve housing 28, the first valve housing 28 is fixedly connected with the lower built-in cross frame 15, and a first sealing gasket 38 is further disposed between the bottom end surface edge of the lower built-in cross frame 15 and the inner wall of the first valve housing 28;

the outer wall of the first valve casing 28 is fixedly provided with a casing 40, the center of the inside of the central shaft 19 is provided with an air passage 36, the center of the bottom end surface of the lower built-in transverse frame 15 is fixedly connected with a bottom cap 33, and the side edge of the bottom cap 33 is provided with an annular hole 34; a valve ball 29 is arranged in the first valve shell 28, a valve channel 30 is arranged in the center of the valve ball 29, the lower part of the valve channel 30 penetrates through the valve ball 29, and the valve ball 29 is fixedly connected with a bottom cap 33 through a bolt 32;

An inner passage 31 is horizontally arranged in the center of the valve ball 29, the inner passage 31 penetrates through the valve passage 30, a closed passage 35 is arranged on the inner wall of the first valve casing 28, a circular opening passage 39 with a major arc shape is horizontally arranged on the inner wall of the first valve casing 28, and the circular opening passage 39 is communicated with the inner wall of the first valve casing 28; the inner wall of the shell 40 is provided with a ring cavity 41 which is arranged in a ring, the ring cavity 41 is communicated with the annular opening 39 through an air hole 42, and a plurality of check valves 43 are arranged on the outer wall of the shell 40 at equal intervals along the circumference;

the check valve 43 is communicated with the annular cavity 41, one end of the air blowing pipe 12, which is communicated with the bottom of the copolymerization tank 2, is communicated with the valve channel 30 through the hard pipe 14, and the closed channel 35 is arranged between two ends of the annular open channel 39.

When the central shaft 19 rotates, the bottom cap 33 is driven to rotate, the bottom cap 33 drives the valve ball 29 to rotate, the valve ball 29 is made of wear-resistant rubber, and when the valve ball 29 rotates, the inner channel 31 can be driven to rotate; because the valve housing 28 is fixed with the lower built-in cross frame 25, the valve housing 28 is always static, and nitrogen pumped by the air blast pipe 12 is pumped into the valve channel 30 through the hard pipe 14; since the inner passage 31 is rotated, the inner passage 31 is intermittently communicated with the closed passage 35 and the annular opening passage 39; when the inner channel 31 is communicated with the annular channel 39, the nitrogen in the valve channel 30 is discharged into the annular channel 39 through the inner channel 31, the nitrogen in the annular channel 39 is discharged into the annular cavity 41 through the air holes 42, and finally the nitrogen in the annular cavity 41 is uniformly discharged to the bottom of the tank body structure from the circumferential direction through the plurality of check valves 43;

When the inner passage 31 is communicated with the closed passage 35, the nitrogen in the valve passage 30 is discharged into the air passage 36 through the inner passage 31, the closed passage 35 and the annular ring 34.

In addition, since the annular opening 39 and the inner passage 31 are matched to have a length longer than that of the closed passage 35 and the inner passage 31, most of the nitrogen pumped by the booster pump 9 is discharged from the bottom of the tank structure through the check valve 43, and intermittently discharged into the air passage 36 through the inner passage 31, the closed passage 35, and the annular ring 34.

Referring to fig. 15 and 16, a plurality of distributing tanks 47 are fixedly arranged on the tank cover 3, a speed reducer 46 is fixedly arranged at the outer center of the tank cover 3, the speed reducer 46 is connected with a discharge motor 45, and a transposition shaft 48 is rotatably arranged at the output end of the speed reducer 46;

the transposition shaft 48 is matched with a discharging valve group arranged at the bottom of the distributing tank 47, and the transposition shaft 48 penetrates through the center of the tank cover 3 and is in rotating fit with the tank cover.

The index shaft 48 communicates with the general control panel 7 via an angle sensor.

The speed reducer 46 is driven to operate by means of the operation of the discharge motor 45, the transposition shaft 48 is further driven to rotate at a retarded speed, and the transposition shaft 48 rotating at the retarded speed is matched with the discharging valve group at the bottom of each material distributing tank 47, so that the materials in each material distributing tank 47 are sequentially discharged.

The four dispensing tanks 47 in the example given in the figures are used for containing the protectant, the accelerator, the inhibitor, and the pure water, respectively; in the initial state, the transposition shaft 48 rotates, and after a certain angle of rotation, the discharging valve group at the bottom of the first material distributing tank 47 is triggered, so that the protective agent is discharged into the tank body structure, and along with the continued rotation of the transposition shaft 48, the protective agent is gradually separated from the discharging valve group at the bottom of the material distributing tank 47, namely the discharging valve group is closed; and then the discharging valve group at the bottom of the second material distributing tank 47 is triggered after rotating for a certain angle, and the discharging valve group is reciprocated until the discharging valve group at the bottom of the fourth material distributing tank 47 is closed, at this time, the transposition shaft 48 rotates for 360 degrees, and after detecting that the transposition shaft 48 rotates for 360 degrees, the angle sensor sends a signal to the general control panel 7, so that the discharging motor 45 is powered off.

In addition, if the total amount of the prepared developing solution is small, the rotation speed of the discharging motor 45 can be adjusted through the main control panel 7, so that the rotation speed of the transposition shaft 48 is slightly increased; regardless of the regulation and control of the rotation speed of the transposition shaft 48, the general control panel 7 controls the discharge motor 45 to be powered off after the transposition shaft rotates for 360 degrees.

In the actual production process, additives such as silver-dissolving agent, film-hardening agent, chelating agent, wetting agent and the like are added into some developing solutions, so that the number and distribution form of the distributing tanks 47 can be adaptively adjusted according to the actual production process and the composition of the developing solutions.

Referring to fig. 12 and 18, the upper end of the central shaft 19 is connected with a second valve group through a switching structure, the first valve group and the second valve group form a gas distributing valve assembly, and the second valve group is used for sequentially injecting nitrogen in the air channel 36 into the corresponding material distributing tank 47 according to the material adding sequence;

nitrogen pumped by the booster pump 9 can be intermittently injected into the bottom of the tank structure and the distributing tank 47 through the air release valve assembly.

The switching structure comprises an air cone 27 fixed on an upper built-in transverse frame 15, a second sealing gasket 44 is arranged between the inner wall of the lower part of the air cone 27 and the top end surface of the upper built-in transverse frame 15, the air cone 27 is hollow, two ends of the air cone are communicated, the top of the air cone 27 is conical, an inner cavity 52 is arranged in the transposition shaft 48, the inner cavity 52 is communicated with the lower end of the transposition shaft 48, and a circle of rubber ring is arranged on the inner wall of the lower end of the transposition shaft 48.

When the electric jacking device 4 drives the tank cover 3 to be closed with the copolymerization tank 2, the top of the air cone 27 is inserted into the inner cavity 52 from the bottom of the transposition shaft 48, and the rubber ring is extruded, so that the upper end of the air cone 27 is in sealing butt joint with the lower end of the transposition shaft 48.

After the two are in butt joint, nitrogen in the air passage 36 can be sent into the corresponding material distributing tank 47 through the inner cavity 52, so that positive pressure is generated in the material distributing tank 47, on one hand, the nitrogen dissolving amount in the reagent in the material distributing tank 47 can be increased before the material discharging valve group is opened, and then the oxygen dissolving amount in the reagent is reduced; on the other hand, when the discharging valve group is opened, the reagent in the distributing tank 47 can be rapidly discharged into the tank structure.

Referring to fig. 18 and 21, the valve group No. two is disposed in the center of the inner wall of the can lid 3, the valve group No. two includes a valve housing No. two 49 fixed in the center of the inner wall of the can lid 3, a third gasket 50 is disposed between the upper section of the index shaft 48 and the can lid 3, and the index shaft 48 penetrates through the valve housing No. two 49 and is in running fit with it;

a fourth sealing gasket 51 is arranged between the second valve casing 49 and the tank cover 3, and a fifth sealing gasket 53 is arranged between the second valve casing 49 and the transposition shaft 48; a plurality of air chambers 55 are circumferentially arranged in the second valve housing 49, an inlet hole 56 is formed in the inner side wall of each air chamber 55, an outlet hole 54 is formed in the transposition shaft 48 at the same height of the inlet hole 56, and the outlet holes 54 are communicated with the inner cavity 52;

each of the air cells 55 is connected to the upper portion of the dispensing tank 47 at a corresponding position through a duct 63.

When the transposition shaft 48 rotates slowly, the air hole 42 is driven to rotate slowly, the air hole 42 is not communicated with any air inlet 56 at first, and nitrogen is intermittently injected into the air passage 36, so that the pressure of the nitrogen in the air passage 36 is increased; then, the air hole 42 is communicated with the adjacent air inlet hole 56 according to the rotation direction, so that nitrogen in the air passage 36 is filled into the first material distributing tank 47, and the air pressure in the air passage 36 is reduced; then the air hole 42 is slowly separated from the first inlet hole 56, and after the air hole 42 is separated from the first inlet hole 56, a discharging valve group at the bottom of the first material distributing tank 47 is opened;

When the air hole 42 is separated from the first air inlet 56, the air hole 42 is in a closed state again, and as nitrogen is intermittently injected into the air passage 36, the pressure of the nitrogen in the air passage 36 is increased again until the air hole 42 is communicated with the second air inlet 56, the nitrogen in the air passage 36 is injected into the second material distributing tank 47, and the air pressure in the air passage 36 is reduced again; then the air hole 42 is slowly separated from the second inlet hole 56, and the discharging valve group at the bottom of the second material distributing tank 47 is opened;

and so on, the discharge valve group to the bottom of the last feed bin 47 is opened.

Because the discharging valve group is opened after the air hole 42 is communicated with the air inlet 56, positive pressure is generated in the corresponding material distributing tank 47, and then the material is discharged, so that the nitrogen dissolving amount in the reagent in the material distributing tank 47 is increased; when the discharge valve group is opened, the reagent in the dispensing tank 47 can be rapidly discharged into the tank structure.

Referring to fig. 19 and 20, the discharging valve group includes a feeding valve 59 installed at the bottom of the material distributing tank 47, an on-off switch 58 is installed on the feeding valve 59, a pulling button 57 is fixedly provided on the outer wall of the transposition shaft 48, a sleeve column 60 is fixedly provided at the bottom of the material distributing tank 47, a torsion spring 61 is sleeved on the sleeve column 60, one side of the torsion spring 61 is connected with the pulling button 57, the other side is attached to a stop lever 62, and the stop lever 62 is fixedly provided at the bottom of the material distributing tank 47.

When the transposition shaft 48 rotates, the stirring button 57 is driven to rotate, the stirring button 57 rotates to be contacted with the on-off switch 58 to drive the on-off switch 58 to rotate, the feeding valve 59 is opened, and the torsion spring 61 is twisted, so that the reagent in the dispensing tank 47 is injected into the tank body structure; when the knob 57 rotates to be separated from the on-off switch 58, the on-off switch 58 is driven to reset under the action of the elasticity of the torsion spring 61, so that the on-off switch 58 is turned off.

In order to increase the sealing performance of the cover between the tank cover 3 and the copolymerization tank 2, a sixth sealing gasket 64 is fixedly sleeved on the edge of the tank cover 3, a liquid discharge valve is arranged in the center of the bottom of the copolymerization tank 2, and after the preparation is completed, the developing solution in the copolymerization tank 2 can be discharged through the liquid discharge valve.

In addition, the upper seal of the dispensing canister 47 extends beyond the canister cover 3, and a top cover is removably provided to the top seal of the dispensing canister 47.

The invention also provides a method for preparing a developing solution by using the copolymer, which comprises the following steps:

step one, debugging equipment, starting a copolymerization motor to stably run under no-load condition, checking whether leakage exists at each joint, and observing the running stability of each part in the copolymerization tank through a detection hole arranged on the outer wall of the copolymerization tank; in addition, the noise decibel value during the running of the equipment is detected, the running temperature of the electric heating controller is detected, whether the angle sensor timely sends a signal to the main control panel to close the discharge motor after the transposition shaft rotates 360 degrees, and whether the transposition shaft after closing the discharge motor is positioned at a preset initial position or not is detected;

Step two, uncovering, starting an electric jacking device, jacking the tank cover by the electric jacking device to separate the tank cover from the copolymerization tank, then injecting the developer into the copolymerization tank, wherein the liquid level of the developer cannot exceed 3/4 of the position of the copolymerization tank, so that the reasonable height difference between the liquid level of the developer and the upper end of the exhaust pipe is ensured, namely, after all the reagents in each material distribution tank are injected into the copolymerization tank, the total liquid level cannot submerge the upper port of the exhaust pipe;

step three, pre-adding reagent, and reversely starting an electric jacking device to completely seal the tank cover and the copolymerization tank; opening the top cover, adding a protective agent, an accelerator, an inhibitor and water into each material distributing tank one by one along the rotation direction of the transposition shaft according to the addition sequence of each reagent, and finally closing the top cover; wherein, the specific liquid amount of the protective agent, the accelerator, the inhibitor and the water is proportionally prepared according to the liquid amount of the developer;

step four, preparing developing solution, connecting an air inlet of a booster pump with a nitrogen tank, starting a copolymerization motor, and stopping the copolymerization motor after a transposition shaft rotates for 360 degrees; standing for 24 hours until all components are fully dissolved, receiving a little of finished product developing solution from a liquid discharge valve, detecting whether the pH value of the finished product developing solution is higher than 10, and if the pH value is higher than 10, the finished product is qualified; for qualified products, completely discharging the developer in the tank structure by opening a liquid discharge valve, filtering the developer in a closed environment, and sealing the filtered developer;

Step five, cleaning equipment, uncapping again, injecting clean water into the copolymerization tank and each material distributing tank, connecting an air inlet of a booster pump with the outside environment atmosphere, and then starting a copolymerization motor to clean the copolymerization tank and the material distributing tanks; after the copolymerization motor is shut down, opening a liquid discharge valve to completely discharge clear water in the tank structure, then starting the copolymerization motor again, and drying the material distributing tank, the tank structure and all parts in the tank structure by utilizing air blowing; when the copolymerization motor is turned off again, the electric jacking device jacks up the tank cover, so that the tank cover is separated from the copolymerization tank, and the copolymerization tank is kept open.

The above-described embodiments are illustrative, not restrictive, and the technical solutions that can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention are included in the present invention.

Claims

1. A co-polymer for preparing a developing solution by slowly releasing dissolved oxygen, which is characterized by comprising:

the tank body structure is used for preparing each reagent through copolymerization and forming developing solution by constant volume, wherein the tank body structure comprises a copolymerization tank (2) and a tank cover (3) which is arranged at the top of the copolymerization tank (2) in an openable and closable manner, and the copolymerization tank (2) is arranged on the frame body (1);

the slow-release oxygen dissolving mechanism is used for introducing nitrogen from the bottom of the tank body structure and forming low pressure at the upper part of the tank body structure;

an air cavity is formed between the upper layer of the solution liquid level in the tank body structure and the top wall of the tank cover (3), and the slow-release oxygen dissolving mechanism comprises a booster pump (9) and a pressure release pump (10) which are arranged on the outer wall of the copolymerization tank (2), wherein the pressure release pump (10) and the booster pump (9) are arranged in a high-low mode; an air inlet of the booster pump (9) is communicated with the nitrogen tank, and an air outlet of the booster pump (9) is communicated with the bottom of the copolymerization tank (2) through an air blowing pipe (12); an air inlet of the pressure release pump (10) is communicated with an air cavity above the inside of the tank body structure through an exhaust pipe (13), and an air outlet of the pressure release pump (10) is communicated with the outside atmosphere;

a copolymerization motor (8) is arranged at one side of the booster pump (9), a main shaft (16) is rotatably arranged at the output end of the copolymerization motor (8), and the main shaft (16) penetrates through a pump shell of the booster pump (9) and one side of the copolymerization tank (2) to extend into the copolymerization tank (2); one section of the main shaft (16) extending into the pump shell of the booster pump (9) is coaxially connected with the impeller shaft of the booster pump (9), one end of the impeller shaft of the pressure relief pump (10) extends out of the pressure relief pump (10) from one side of the pump shell of the pressure relief pump (10), one section of the impeller shaft of the pressure relief pump (10) extending out of the pump shell of the pressure relief pump (10) is connected with the main shaft (16) through a transmission belt (11), and the main shaft (16) is in speed-increasing transmission with the impeller shaft of the pressure relief pump (10) through the transmission belt (11); the pressure release pump (10) and the booster pump (9) share the copolymerization motor (8) to start and stop synchronously, and the pressure in the air cavity is continuously and slowly reduced through the speed-increasing transmission of the transmission belt (11);

The auxiliary mixing mechanism comprises a central shaft (19) rotatably arranged in the center of the inside of the copolymerization tank (2), two built-in transverse frames (15) which are distributed in a high-low mode are arranged in the copolymerization tank (2), and the upper part and the lower part of the central shaft (19) are respectively in rotary fit with the centers of the two built-in transverse frames (15);

one end of the main shaft (16) extending into the copolymerization tank (2) is provided with a first bevel gear (17), and the first bevel gear (17) is meshed with a bevel gear disc (18) arranged on a central shaft (19); the copolymerization motor (8) drives the booster pump (9), the pressure release pump (10) and the first bevel gear (17) to operate, and the bevel gear disk (18) drives the central shaft (19) to rotate so as to drive the web shaft (20) and blades (24) fixed on the web shaft (20) to rotate around the central shaft (19), and the blades (24) stir the solution horizontally;

a plurality of web shafts (20) are rotatably arranged on the central shaft (19) along the axial direction of the central shaft, blades (24) are arranged on the web shafts (20), and a second bevel gear (21) is arranged at one end, far away from the central shaft (19), of the web shafts (20); two groups of ring frames (22) are arranged on the inner wall of the copolymerization tank (2), a plurality of bevel gear sections (23) are arranged on each group of ring frames (22) at equal intervals in a circumferential direction, the two groups of ring frames (22) are symmetrical about the plane where the web shaft (20) is located, two adjacent bevel gear sections (23) on the two groups of ring frames (22) are staggered with each other and have a dislocation gap, and the second bevel gear (21) is matched with the bevel gear sections (23); the second bevel gear (21) is matched with the bevel gear section (23) to drive the spoke shaft (20) and the blade (24) to rotate, and the solution is vertically mixed and stirred;

Adjacent two bevel gear sections (23) on the two groups of ring frames (22) are staggered mutually, so that the second bevel gear (21) is matched with the bevel gear sections (23) to drive the blades (24) and the web shaft (20) to alternately change in the forward direction and the reverse direction, and the alternating between the forward direction and the reverse direction is buffer alternating;

a plurality of distributing tanks (47) are arranged on the tank cover (3), a speed reducer (46) is arranged in the center of the outside of the tank cover (3), the speed reducer (46) is connected with a discharge motor (45), and a transposition shaft (48) is rotatably arranged at the output end of the speed reducer (46);

the transposition shaft (48) is matched with a discharging valve group arranged at the bottom of the distributing tank (47), and the transposition shaft (48) penetrates through the center of the tank cover (3) and is in rotating fit with the tank cover;

the central shaft (19) is provided with a gas dividing valve assembly which is used for intermittently injecting nitrogen pumped by the booster pump (9) into the bottom of the tank structure and the material dividing tank (47);

the gas distributing valve assembly comprises a first valve group and a second valve group, the first valve group is arranged at the lower end of the central shaft (19), and the second valve group is connected with the upper end of the central shaft (19) through a switching structure;

the valve group I comprises a valve group I (28), the valve group I (28) is connected with a lower built-in transverse frame (15), and a first sealing gasket (38) is also arranged between the bottom end surface edge of the lower built-in transverse frame (15) and the inner wall of the valve group I (28);

The outer wall of the first valve casing (28) is provided with a shell (40), the center of the inside of the central shaft (19) is provided with an air passage (36), the center of the bottom end surface of the lower built-in cross frame (15) is connected with a bottom cap (33), and the side edge of the bottom cap (33) is provided with an annular hole (34); a valve ball (29) is arranged in the first valve shell (28), a valve channel (30) is arranged in the center of the valve ball (29), the lower part of the valve channel (30) penetrates through the valve ball (29), and the valve ball (29) is connected with a bottom cap (33) through a bolt (32);

an inner channel (31) is horizontally arranged in the center of the valve ball (29), the inner channel (31) penetrates through the valve channel (30), a closed channel (35) is arranged on the inner wall of the first valve casing (28), a circular opening channel (39) with a major arc shape is horizontally arranged on the inner wall of the first valve casing (28), and the circular opening channel (39) is communicated with the inner wall of the first valve casing (28); the inner wall of the shell (40) is provided with a ring cavity (41) which is arranged in a ring way, the ring cavity (41) is communicated with the annular opening (39) through an air hole (42), and a plurality of check valves (43) are arranged on the outer wall of the shell (40) at equal intervals along the circumference;

the check valve (43) is communicated with the annular cavity (41), one end of the air blowing pipe (12) communicated with the bottom of the copolymerization tank (2) is communicated with the valve channel (30) through the hard pipe (14), and the closed channel (35) is arranged between two ends of the annular opening channel (39);

The central shaft (19) rotates to drive the valve ball (29) to rotate, so as to drive the inner channel (31) to rotate, and the inner channel (31) is intermittently communicated with the closed channel (35) and the annular open channel (39) in the rotating process, so that after nitrogen pumped by the air blowing pipe (12) is pumped into the valve channel (30) through the hard pipe (14), the nitrogen in the valve channel (30) is intermittently discharged into the annular open channel (39) and the closed channel (35) through the inner channel (31);

the second valve group is used for sequentially injecting nitrogen in the air channel (36) into the corresponding distributing tank (47) according to the adding sequence of each reagent;

the switching structure comprises an air cone (27) arranged on an upper built-in transverse frame (15), a second sealing gasket (44) is arranged between the inner wall of the lower part of the air cone (27) and the top end surface of the upper built-in transverse frame (15), the air cone (27) is hollow and is communicated at two ends, the top of the air cone (27) is conical, an inner cavity (52) is arranged in the transposition shaft (48), the inner cavity (52) is communicated with the lower end of the transposition shaft (48), and a circle of rubber ring is arranged on the inner wall of the lower end of the transposition shaft (48).

2. The co-polymer of the developing solution prepared by the slow-release dissolved oxygen amount according to claim 1, wherein the valve group II is arranged in the center of the inner wall of the tank cover (3), the valve group II comprises a valve shell II (49) arranged in the center of the inner wall of the tank cover (3), a third sealing gasket (50) is arranged between the upper section of the transposition shaft (48) and the tank cover (3), and the transposition shaft (48) penetrates through the valve shell II (49) and is in rotating fit with the valve shell II;

A fourth sealing gasket (51) is arranged between the second valve casing (49) and the tank cover (3), and a fifth sealing gasket (53) is arranged between the second valve casing (49) and the transposition shaft (48); a plurality of air chambers (55) are circumferentially arranged in the second valve casing (49), an inlet hole (56) is formed in the inner side wall of each air chamber (55), an outlet hole (54) is formed in the position, with equal height, of the inlet hole (56) of the transposition shaft (48), and the outlet hole (54) is communicated with the inner cavity (52);

each air chamber (55) is communicated with the upper part of the distributing tank (47) at the corresponding position through a conduit (63).

3. The device for preparing the developing solution by slowly releasing the dissolved oxygen according to claim 1, wherein the discharging valve group comprises a feeding valve (59) arranged at the bottom of the distributing tank (47), an on-off switch (58) is arranged on the feeding valve (59), a shifting button (57) is arranged on the outer wall of the shifting shaft (48), a sleeve column (60) is further arranged at the bottom of the distributing tank (47), a torsion spring (61) is sleeved on the sleeve column (60), one side of the torsion spring (61) is connected with the shifting button (57), the other side of the torsion spring is attached to a stop lever (62), and the stop lever (62) is arranged at the bottom of the distributing tank (47).

4. A method of formulating a developer using the co-polymer of any one of claims 1-3, comprising the steps of: