Continuous production device for preparing ammonium bicarbonate through ammonia water carbonization

Abstract

The utility model relates to the field of ammonium bicarbonate processing, in particular to a continuous production device for preparing ammonium bicarbonate by carbonizing ammonia water, which comprises a base, a preparation tank, a water inlet pipe, a water discharge pipe, a carbon dioxide inlet pipe, an ammonia gas inlet pipe and a spray pipe, one side of the middle of the preparation tank is communicated with a drain pipe, the other side of the upper part of the preparation tank is communicated with a carbon dioxide inlet pipe, the center of the top of the preparation tank is communicated with an ammonia inlet pipe, and the upper part in the preparation tank is provided with an annular spray pipe communicated with the water inlet tank. The stirring paddle is driven by the motor I and is connected through the universal joint, so that uniform stirring of the stirring paddle is ensured, and mixing and reaction of reactants are promoted; the design that the electric cylinder pushes the cover plate to be opened enables ammonium bicarbonate solid particles to directly fall into the treatment cabin, the ammonium bicarbonate solid particles are prevented from being mixed with unreacted liquid-phase substances, efficient separation is achieved, the intermediate retention time is shortened, and the production efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to ammonium bicarbonate processing field especially relates to a continuous production device of ammonium bicarbonate preparation of ammonia water carbonization. BACKGROUND

[0002] Ammonia water is an inorganic compound with the chemical formula NH3·H2O. It is formed by dissolving ammonia gas (NH3) in water.

[0003] The continuous production of ammonium bicarbonate from ammonia water carbonization is an industrial process that generates ammonium bicarbonate (NH4HCO3) by passing carbon dioxide (CO2) into ammonia water (NH3·H2O). This continuous production process can improve production efficiency, product quality, and process stability.

[0004] In traditional devices, the generated ammonium bicarbonate solid particles are mixed with unreacted liquid phase, and the separation process is complex and inefficient, often requiring additional filtration and separation steps, increasing operation time and equipment maintenance costs.

[0005] Therefore, there is an urgent need to design a continuous production device for ammonium bicarbonate preparation from ammonia water carbonization. SUMMARY

[0006] To overcome the shortcomings of the prior art, the purpose of the utility model is to provide a continuous production device for ammonium bicarbonate preparation from ammonia water carbonization.

[0007] The technical solution of the utility model is as follows: a continuous production device for ammonium bicarbonate preparation from ammonia water carbonization, comprising a base, a preparation tank, a water inlet pipe, an electric valve, a drain pipe, a conveying pipe, a carbon dioxide inlet pipe, an ammonia gas inlet pipe, a spray pipe, a cone hopper, a stirring paddle, a universal joint, a motor one, a cover plate, an electric cylinder, and a guide rod. The preparation tank is embedded in the top of the base. The water inlet pipe is connected to one side of the upper part of the preparation tank. The drain pipe is connected to one side of the middle part of the preparation tank. The carbon dioxide inlet pipe is connected to the other side of the upper part of the preparation tank. The ammonia gas inlet pipe is connected to the center of the top of the preparation tank. The spray pipe is installed in the preparation tank in a ring shape and penetrates the water tank. The cone hopper is installed in the lower middle part of the preparation tank. The stirring paddle is rotatably arranged in the upper part of the cone hopper. The connecting shaft of the stirring paddle extends downward, and the extending part is provided with a universal joint. The motor one is installed on one side of the lower part of the cone hopper. The output shaft of the motor one extends into the lower part of the cone hopper. One end of the universal joint is connected to the output shaft of the motor one. The conveying pipe is connected to the other side of the lower part of the cone hopper. The conveying pipe is connected to the drain pipe. The cover plate is embedded in the bottom of the cone hopper. The electric cylinder is installed on the front side of the outside of the cone hopper. The drive rod of the electric cylinder is connected to the outside of the cover plate. The guide rod is slidably arranged on the rear side of the outside of the cone hopper. The lower part of the guide rod is connected to the outside of the cover plate. The discharge pipe is connected to the bottom of the preparation tank. Electric valves are installed on the water inlet pipe, the drain pipe, the carbon dioxide inlet pipe, the ammonia gas inlet pipe, and the discharge pipe.

[0008] As a further preferred solution, the outer profile of the upper part of the cone completely fits the inner profile of the preparation tank, so as to close the upper-middle cavity of the preparation tank.

[0009] As a further preferred solution, a filter screen is arranged in the conveying pipe for isolating solid phase materials.

[0010] As a further preferred solution, the installation frame, the air collecting pipe, the heater, the fan, the treatment cabin, the gear ring, the second motor and the gear are further included, the installation frame is fixed to one side of the lower part of the preparation tank, the air collecting pipe is arranged on the installation frame and extends into one side of the lower part of the preparation tank, the heater is arranged in the middle of the air collecting pipe, the fan is arranged on the other side of the outer part of the air collecting pipe, the air supply end of the fan is close to the heater, the treatment cabin is rotatably arranged in the lower part of the preparation tank, the bottom of the treatment cabin is communicated with the discharge pipe, the upper part of the treatment cabin is opposite to the lower part of the cone, the gear ring is arranged on the outer side of the middle part of the treatment cabin, the second motor is arranged on the front side of the lower part of the preparation tank, the output shaft of the second motor is provided with the gear, and the gear is rotatably engaged with the adjacent gear ring.

[0011] As a further preferred solution, a dustproof screen is arranged in one end of the air collecting pipe extending into the preparation tank for isolating dust.

[0012] As a further preferred solution, the exhaust purifier is further included, the exhaust purifier for treating the gas in the preparation tank is arranged on the front side of the upper part of the preparation tank, and the exhaust purifier is communicated with the ammonia inlet pipe.

[0013] Compared with the prior art, the utility model has the advantages that: 1. the motor drives the stirring paddle and is connected through a universal joint, so that the stirring paddle can be uniformly stirred, and the mixing and reaction of the reactants are promoted; the design that the electric cylinder pushes the cover plate to open enables the ammonium bicarbonate solid particles to directly fall into the treatment cabin, avoids mixing with the unreacted liquid phase materials, realizes efficient separation, reduces the intermediate residence time, and improves the production efficiency.

[0014] 2. the design of the annular spray pipe enables the ammonia water to be uniformly sprayed in the preparation tank, increases the contact area of the ammonia water and the carbon dioxide, and improves the reaction efficiency; through the accurate control of the electric valve, the stable supply of the raw materials such as ammonia water, carbon dioxide and ammonia gas, and the orderly discharge of the liquid phase materials and the products can be realized, which not only improves the production efficiency, but also guarantees the consistency of the product quality.

[0015] 3. the outer profile of the upper part of the cone completely fits the inner profile of the preparation tank, so as to close the upper-middle cavity of the preparation tank, prevent the reactants from leaking, and ensure that the reaction is carried out in a relatively closed environment, thereby improving the safety and stability of the reaction.

[0016] 4. The cover is opened by an electric cylinder, allowing ammonium bicarbonate to fall into the processing chamber through the bottom of the cone. The guide rod guides the cover to ensure smooth movement, achieving effective separation and collection of solid particles. Unreacted ammonia and carbon dioxide are recovered and treated by an emission purifier, reducing the emission of harmful gases and recovering some ammonia, thus lowering production costs.

[0017] 5. Air is heated by a heater, and the hot air is sent to the lower part of the preparation tank by a fan to dry the generated ammonium bicarbonate, which improves the purity and quality of the product. In addition, the motor drives the gear to mesh with the gear ring, which makes the processing chamber rotate. The solid particles in the processing chamber are in a rolling state under the action of centrifugal force generated during rotation, which further improves the drying effect and ensures the dryness and uniformity of the final product. Attached Figure Description

[0018] Figure 1 This is an assembly diagram of the present invention.

[0019] Figure 2 This is a three-dimensional cross-sectional view of the components of this utility model, including the tank, water inlet pipe, and electric valve.

[0020] Figure 3 This is a cross-sectional structural diagram of the components of this utility model, including the cone bucket, stirring paddle, and universal joint.

[0021] Figure 4 This is a three-dimensional structural diagram of the cover plate, electric cylinder, and guide rod of this utility model.

[0022] Figure 5 This is a cross-sectional structural diagram of the mounting bracket, air collection pipe, and heater of this utility model.

[0023] Figure 6 This is a cross-sectional structural diagram of the centrifuge frame, gear ring, and motor components of this utility model.

[0024] The following are the labels in the diagram: 1. Base, 2. Preparation tank, 3. Water inlet pipe, 4. Electric valve, 5. Drain pipe, 51. Conveying pipe, 6. Carbon dioxide inlet pipe, 7. Ammonia inlet pipe, 8. Spray pipe, 9. Conical hopper, 10. Agitator, 11. Universal joint, 12. Motor 1, 13. Cover plate, 14. Electric cylinder, 15. Guide rod, 16. Mounting bracket, 17. Air collection pipe, 18. Heater, 19. Fan, 20. Processing chamber, 21. Gear ring, 22. Motor 2, 23. Gear, 24. Discharge pipe, 25. Emission purifier. Detailed Implementation

[0025] Clearly, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] Embodiment: A continuous production device for preparing ammonium bicarbonate by carbonation of ammonia water, comprising Figures 1-4 and Figure 6As shown, including the base 1, preparation tank 2, water pipe 3, electric valve 4, drain pipe 5, conveying pipe 51, carbon dioxide into pipe 6, ammonia into pipe 7, spray pipe 8, cone bucket 9, stirring paddle 10, universal joint 11, motor 12, cover plate 13, electric cylinder 14 and guide rod 15, the base 1 provides the support and stable foundation of the whole device, the base 1 is embedded with the preparation tank 2 in the top, the preparation tank 2 is used as the main container of the reaction, containing ammonia water, carbon dioxide and generated ammonium bicarbonate, the preparation tank 2 is communicated with the water pipe 3 on one side of the upper part, the water pipe 3 sends the ammonia water solution into the preparation tank 2, provides sufficient raw materials for the reaction, the preparation tank 2 is communicated with the drain pipe 5 on one side of the middle part, the drain pipe 5 is used to discharge the unreacted liquid phase, avoids affecting the subsequent reaction and product quality, the preparation tank 2 is communicated with the carbon dioxide into pipe 6 on the other side of the upper part, the carbon dioxide into pipe 6 passes the high-purity carbon dioxide gas into the preparation tank 2, makes it contact with the ammonia water fully, promotes the progress of the reaction, the preparation tank 2 is communicated with the ammonia into pipe 7 in the middle of the top, the ammonia into pipe 7 passes the ammonia into the preparation tank 2, to supplement the ammonia consumed in the reaction process, maintains the smooth progress of the reaction, the preparation tank 2 is installed with the spray pipe 8 in the upper part, which is annular and penetrates the water tank, the spray pipe 8 is used to spray the ammonia water uniformly, increases the contact area of the ammonia water and carbon dioxide, improves the reaction efficiency, the preparation tank 2 is installed with the cone bucket 9 in the lower middle part, the outer profile of the upper part of the cone bucket 9 is completely matched with the inner profile of the preparation tank 2, so as to close the upper middle cavity of the preparation tank 2, the cone bucket 9 prevents the reaction leakage, and ensures that the reaction is carried out in a relatively closed environment, while collecting the generated ammonium bicarbonate solid particles, the stirring paddle 10 is rotatably arranged in the upper part of the cone bucket 9, the stirring paddle 10 can promote the mixing of the reactants and the progress of the reaction when rotating, improve the reaction efficiency and the consistency of the product, the connecting shaft of the stirring paddle 10 extends downward, the extending part is provided with the universal joint 11, the universal joint 11 ensures that the stirring paddle 10 can rotate flexibly in the cone bucket 9, improves the stirring effect, the lower part of the cone bucket 9 is installed with the motor 12 on one side, the output shaft of the motor 12 extends into the lower part of the cone bucket 9, one end of the universal joint 11 is connected with the output shaft of the motor 12, thereby driving the stirring paddle 10 to rotate, ensuring that the stirring paddle 10 stirs uniformly in the cone bucket 9, promotes the mixing of the reactants and the progress of the reaction, the lower part of the other side of the cone bucket 9 is communicated with the conveying pipe 51, the conveying pipe 51 is provided with a filter screen for isolating solid phase, the solid particles are isolated through the filter screen, preventing them from entering the drain pipe 5, ensuring the purity of the liquid phase, the conveying pipe 51 is communicated with the drain pipe 5, the bottom of the cone bucket 9 is embedded with the cover plate 13, controlling the opening and closing of the bottom of the cone bucket 9, the cone bucket 9 is installed with the electric cylinder 14 on the front side, the driving rod of the electric cylinder 14 is connected with the outside of the cover plate 13, the electric cylinder 14 is used to push the cover plate 13 to open or close, the cone bucket 9 is slidably provided with the guide rod 15 on the rear side, the lower part of the guide rod 15 is connected with the outside of the cover plate 13, the guide rod 15 plays a guiding role, ensuring the stable movement of the cover plate 13, preventing jamming or deviation, the bottom of the preparation tank 2 is communicated with the discharge pipe 24,The electric valve 4 is installed on the water inlet pipe 3, the water outlet pipe 5, the carbon dioxide inlet pipe 6, the ammonia gas inlet pipe 7 and the discharge pipe 24, and the electric valve 4 realizes the stable supply of the ammonia water, the carbon dioxide and the ammonia gas and the orderly discharge of the liquid phase and the product by accurately controlling the opening and closing of each pipe, thereby improving the production efficiency and the product quality.

[0027] As shown in Figure 1 and Figure 6 , the installation frame 16, the air collecting pipe 17, the heater 18, the fan 19, the processing cabin 20, the gear ring 21, the motor 22 and the gear 23 are further included, the installation frame 16 is fixed to one side of the lower part of the preparation tank 2, the air collecting pipe 17 is arranged on the installation frame 16, the air collecting pipe 17 serves as a conveying channel of the hot air, a dust screen is arranged in the end of the air collecting pipe 17 extending into the preparation tank 2, the dust screen is used for isolating dust, the end of the air collecting pipe 17 extends into one side of the lower part of the preparation tank 2, the heater 18 is installed in the middle of the air collecting pipe 17, the heater 18 provides high-temperature air, the generated ammonium bicarbonate is dried, the purity and the quality of the product are improved, the fan 19 is installed on the other side of the inside of the air collecting pipe 17, the fan 19 sends the hot air into the lower part of the preparation tank 2, the hot air is uniformly distributed, the drying effect is improved, the air supply end of the fan 19 is close to the heater 18, the processing cabin 20 is rotatably arranged in the lower part of the preparation tank 2, the processing cabin 20 is used for receiving the ammonium bicarbonate solid particles falling from the bottom of the hopper 9, and the drying effect is improved by rotation, the bottom of the processing cabin 20 is communicated with the discharge pipe 24, the upper part of the processing cabin 20 is opposite to the lower part of the hopper 9, the gear ring 21 is arranged on the outer side of the middle of the processing cabin 20, the motor 22 is installed on the front side of the lower part of the preparation tank 2, the gear 23 is arranged on the output shaft of the motor 22, the gear 23 is rotatably engaged with the adjacent gear ring 21, the motor 22 provides power, drives the gear 23 to engage with the gear ring 21, and the processing cabin 20 is rotated, thereby improving the drying effect.

[0028] As shown in Figure 1 , the discharge purifier 25 is further included, the discharge purifier 25 is installed on the front side of the upper part of the preparation tank 2 and is used for treating the gas in the preparation tank 2, the discharge purifier 25 is communicated with the ammonia gas inlet pipe 7, the discharge purifier 25 is used for recycling the unreacted ammonia gas and the carbon dioxide, reducing the discharge of the harmful gas, meeting the environmental protection requirement, and reducing the production cost.

[0029] In use, the control system opens the electric valves 4 in each orientation, and the ammonia solution is sent into the preparation tank 2 through the water inlet pipe 3, and the high-purity carbon dioxide gas is sent into the preparation tank 2 through the carbon dioxide inlet pipe 6, and the ammonia gas is sent into the preparation tank 2 through the ammonia gas inlet pipe 7 to supplement the ammonia consumed in the reaction process, and the accurate control of the electric valves 4 can realize the stable supply of the ammonia solution, the carbon dioxide and the ammonia gas and the orderly discharge of the liquid phase and the product, the ammonia solution is uniformly sprayed in the preparation tank 2 by the annular spray pipe 8 after entering the preparation tank 2, so as to increase the contact area of the ammonia solution and the carbon dioxide, the carbon dioxide is sent into the preparation tank 2 from the upper side of the preparation tank 2 through the carbon dioxide inlet pipe 6 and fully contacts with the sprayed ammonia solution to generate ammonium bicarbonate through chemical reaction, the stirring paddle 10 in the conical hopper 9 is driven by the motor 1 2 and connected by the universal joint 1 1, so as to ensure the uniform stirring of the stirring paddle 10 in the conical hopper 9 and promote the mixing of the reactants and the progress of the reaction, the outer profile of the upper part of the conical hopper 9 is completely matched with the inner profile of the preparation tank 2, so as to close the upper inner cavity of the preparation tank 2, prevent the leakage of the reactants and ensure the reaction in a relatively closed environment, the generated ammonium bicarbonate is crystallized and separated out in the conical hopper 9 to form solid particles, the filter screen in the conveying pipe 51 is used to isolate the solid particles and prevent the solid particles from entering the drain pipe 5; when the ammonium bicarbonate needs to be discharged, the electric cylinder 14 pushes the cover plate 13 to open, so that the ammonium bicarbonate falls through the bottom of the conical hopper 9 into the treatment cabin 20, and the guide rod 15 plays a guiding role to ensure the stable movement of the cover plate 13, the conveying pipe 51 discharges the liquid phase separated by the filter screen and finally discharged to the outside through the drain pipe 5; in addition, the gas generated in the process of mixing and reacting of the reactants in the preparation tank 2, especially the unreacted ammonia and carbon dioxide, will be treated by the exhaust purifier 25; finally, the heater 1 8 heats the air, the fan 1 9 sends the hot air into the lower part of the preparation tank 2 to dry the generated ammonium bicarbonate, and the motor 2 2 drives the gear 23 to mesh with the gear ring 21, so that the treatment cabin 20 rotates, the solid particles in the treatment cabin 20 will be in a rolling state due to the centrifugal force generated during rotation, which can further improve the drying effect, and the solid particles in the treatment cabin 20 will be discharged from the discharge pipe 24 after drying.

[0030] The above only describes the preferred embodiments of the present application, and it should be pointed out that those skilled in the art can make some improvements and decorations without departing from the principles of the present application, and these improvements and decorations should also be regarded as the protection scope of the present application.

Claims

1. A continuous production device for preparing ammonium bicarbonate by carbonation of aqueous ammonia, comprising a base (1) and a preparation tank (2), the preparation tank (2) being embedded in the base (1) at the top, characterized in that, The preparation tank (2) is provided with a water inlet pipe (3), an electric valve (4), a drain pipe (5), a conveying pipe (51), a carbon dioxide inlet pipe (6), an ammonia gas inlet pipe (7), a spraying pipe (8), a conical bucket (9), a stirring paddle (10), a universal joint (11), a motor (12), a cover plate (13), an electric cylinder (14) and a guide rod (15). The water inlet pipe (3) is connected to one side of the upper portion of the preparation tank (2), the drain pipe (5) is connected to one side of the middle portion of the preparation tank (2), the carbon dioxide inlet pipe (6) is connected to the other side of the upper portion of the preparation tank (2), the ammonia gas inlet pipe (7) is connected to the middle portion of the top of the preparation tank (2), the spraying pipe (8) is annularly arranged in the upper portion of the preparation tank (2) and penetrates the water inlet tank, the conical bucket (9) is arranged in the lower middle portion of the preparation tank (2), the stirring paddle (10) is rotatably arranged in the upper portion of the conical bucket (9), the connecting shaft of the stirring paddle (10) extends downward, the universal joint (11) is arranged on the extending portion, the motor (12) is arranged on one side of the lower portion of the conical bucket (9), the output shaft of the motor (12) extends into the lower portion of the conical bucket (9), one end of the universal joint (11) is connected to the output shaft of the motor (12), the conveying pipe (51) is connected to the other side of the lower portion of the conical bucket (9) and the drain pipe (5), the cover plate (13) is embeddedly arranged in the bottom of the conical bucket (9), the electric cylinder (14) is arranged on the front side of the outer portion of the conical bucket (9), the driving rod of the electric cylinder (14) is connected to the outer portion of the cover plate (13), the guide rod (15) is slidably arranged on the rear side of the outer portion of the conical bucket (9), the lower portion of the guide rod (15) is connected to the outer portion of the cover plate (13), the discharge pipe (24) is connected to the bottom of the preparation tank (2), and the electric valve (4) is arranged on each of the water inlet pipe (3), the drain pipe (5), the carbon dioxide inlet pipe (6), the ammonia gas inlet pipe (7) and the discharge pipe (24).

2. The continuous production device for preparing ammonium bicarbonate by carbonation of aqueous ammonia according to claim 1, characterized in that The outer profile of the upper portion of the conical bucket (9) is completely matched with the inner profile of the preparation tank (2), so that the upper middle cavity of the preparation tank (2) is closed.

3. The continuous production apparatus for preparing ammonium bicarbonate by carbonization of ammonia water as described in claim 2, characterized in that, The conveying pipe (51) is provided with a filter screen for isolating solid phase materials.

4. The continuous production device for preparing ammonium bicarbonate by carbonation of aqueous ammonia according to claim 3, characterized in that It also includes a mounting frame (16), a wind collecting pipe (17), a heater (18), a fan (19), a processing cabin (20), a gear ring (21), a motor two (22) and a gear (23), the lower side of the preparation tank (2) is fixed with the mounting frame (16), the mounting frame (16) is provided with the wind collecting pipe (17), the end of the wind collecting pipe (17) extends into the lower side of the preparation tank (2), the heater (18) is installed in the middle of the wind collecting pipe (17), the fan (19) is installed on the other side of the inside of the wind collecting pipe (17), the air supply end of the fan (19) is close to the heater (18), the processing cabin (20) is rotatably arranged in the lower part of the preparation tank (2), the bottom of the processing cabin (20) is communicated with the discharge pipe (24), the upper part of the processing cabin (20) is opposite below the conical hopper (9), the middle part of the processing cabin (20) is provided with the gear ring (21), the lower front side of the preparation tank (2) is installed with the motor two (22), the output shaft of the motor two (22) is provided with the gear (23), the gear (23) is rotatably engaged with the adjacent gear ring (21).

5. The continuous production apparatus for preparing ammonium bicarbonate by carbonization of ammonia water as described in claim 4, characterized in that, The end of the wind collecting pipe (17) extending into the preparation tank (2) is provided with a dust screen for isolating dust.

6. The apparatus for continuously producing ammonium bicarbonate by carbonation of aqueous ammonia according to claim 5, wherein It also includes a discharge purifier (25), the upper front side of the preparation tank (2) is installed with the discharge purifier (25) for processing the gas inside, the discharge purifier (25) is communicated with the ammonia gas inlet pipe (7).

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