Solid polycarboxylate superplasticizer reaction device

Abstract

The utility model relates to a solid polycarboxylate superplasticizer reaction device which comprises a shell, a reaction chamber, a drying chamber, a cooling and collecting chamber, a centrifugal atomizer, a first blower and a second blower, a first partition plate and a second partition plate are horizontally arranged in the shell in sequence from top to bottom, and the area between the first partition plate and the shell and the area between the first partition plate and the top of the shell are the reaction chamber. A feeding port communicated with the reaction chamber is formed in the top of the shell, an area between the first partition plate and the second partition plate is a drying chamber, an area between the lower portion of the second partition plate and the bottom of the shell is a cooling collecting chamber, a discharging port is formed in the bottom of the cooling collecting chamber, a centrifugal atomizer is arranged at the top of an inner cavity of the drying chamber, and a first air blower is arranged on the outer side of the shell. An adsorption type compressed air dryer and a heater are sequentially arranged on the first air inlet pipe, and a second air blower is further arranged on the outer side of the shell; according to the utility model, the mutual bonding of high-temperature solid polycarboxylate superplasticizer particles is avoided, and the final quality of a product is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of polycarboxylate water reducing agents, and specifically relates to a reaction device for solid polycarboxylate water reducing agents. Background Art

[0002] Polycarboxylate water reducing agent is a high-performance water reducing agent and a cement dispersant used in cement concrete. It is widely used in projects such as highways, bridges, dams, tunnels, and high-rise buildings. The polycarboxylate water reducing agent is synthesized by copolymerization of unsaturated monomers in the synthesis process. The existing polycarboxylate water reducing agents are specifically divided into two forms: liquid and solid. Usually, the solid polycarboxylate water reducing agent is obtained by drying the liquid polycarboxylate water reducing agent.

[0003] In the existing reaction device for solid polycarboxylate water reducing agents, the usual drying step usually requires adding an anti-binder to prevent the powdered polycarboxylate water reducing agent from agglomerating. After adding the anti-binder, the content of the solid polycarboxylate water reducing agent decreases, and the water reducing performance is reduced. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a reaction device for solid polycarboxylate water reducing agents aiming at the above deficiencies.

[0005] To solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A reaction device for solid polycarboxylate water reducing agents, comprising a housing, a reaction chamber, a drying chamber, a cooling and collection chamber, a centrifugal atomizer, a first blower, and a second blower. A first partition and a second partition are horizontally arranged in sequence from top to bottom in the housing. The area between the first partition and the top of the housing is the reaction chamber. A feed port communicating with the reaction chamber is opened at the top of the housing. The area between the first partition and the second partition is the drying chamber. The area between the lower part of the second partition and the bottom of the housing is the cooling and collection chamber. The second partition is a conical shape with the middle part protruding upward and there is a gap between the outer edge and the housing. An outlet is arranged at the bottom of the cooling and collection chamber. A centrifugal atomizer is arranged at the top of the inner cavity of the drying chamber. The bottom outlet of the reaction chamber is connected to the centrifugal atomizer through a water pipe. An air inlet hole and an air outlet hole are opened on the side wall of the drying chamber. A first blower is arranged outside the housing. The first blower is connected to the air inlet hole through a first air inlet pipe. An adsorption type compressed air dryer and a heater are sequentially arranged on the first air inlet pipe. A second blower is also arranged outside the housing. The second blower is connected to the cooling and collection chamber through a second air inlet pipe. A second air outlet pipe opposite to the second air inlet pipe is arranged on the side wall of the cooling and collection chamber;

[0007] The reaction chamber is used to mix the raw materials put in at the feed inlet to obtain liquid polycarboxylate water reducer. The drying chamber is used to dry the liquid polycarboxylate water reducer to form solid polycarboxylate water reducer. The centrifugal atomizer is used to atomize the liquid polycarboxylate water reducer. The first blower and the adsorption type compressed air dryer are used to blow dry air into the inner side of the drying chamber. The heater is used to heat the dry air to form dry hot air. The dry hot air is used to adsorb the moisture in the atomized polycarboxylate water reducer and blow it out from the air outlet. The solid polycarboxylate water reducer particles slide along the edge of the second partition plate to the cooling and collection chamber. The second blower is used to convey normal temperature air to the cooling and collection chamber. The cooling and collection chamber is used to collect the solid polycarboxylate water reducer particles.

[0008] Further, a stirring motor is arranged at the top of the housing, and a stirring blade extending to the inner side of the reaction chamber is arranged at the output end of the stirring motor.

[0009] Further, a fixed bracket is arranged below the centrifugal atomizer on the inner side of the drying chamber. A power-free blade is arranged on the vertical central axis of the fixed bracket. The power-free blade is flush with the air inlet hole. The power-free blade can be rotated by the hot air entering from the air inlet hole.

[0010] Further, the part of the water pipe located at the top of the first partition plate is wavy.

[0011] Further, the height of the air outlet hole is higher than the height of the air inlet hole.

[0012] Further, an air extractor is arranged on the first air outlet pipe. The air extractor is used to extract the air in the drying chamber.

[0013] Further, both the first air outlet pipe and the second air outlet pipe are L-shaped and the output ends are upward.

[0014] Further, a vacuum heat insulation board is arranged at the bottom of the second partition plate.

[0015] After the present utility model adopts the above technical solutions, compared with the prior art, it has the following advantages:

[0016] In the present utility model, a rotating air flow is formed in the drying chamber through the power-free blade, so that the atomized polycarboxylate water reducer particles are kept in a suspended state, reducing the contact opportunity between the particles. The dried solid polycarboxylate water reducer particles directly enter the cooling and collection chamber for cooling and collection, reducing the temperature of the solid polycarboxylate water reducer particles, avoiding the adhesion of high-temperature solid polycarboxylate water reducer particles to each other, thus effectively preventing the phenomenon of caking, and there is no need to additionally add an anti-caking agent, ensuring the final quality of the product; by setting the second partition plate in a conical shape, the solid polycarboxylate water reducer particles will roll along the surface of the second partition plate and fall to the cooling and collection chamber after falling on the surface of the second partition plate, and will not accumulate on the second partition plate.

[0017] The present utility model will be described in detail below with reference to the accompanying drawings and embodiments. Description of the Drawings

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is an internal three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 3 is a cross-sectional view of the internal structure of the present utility model;

[0021] Figure 4 is a top view of the connection structure between the second partition and the housing.

[0022] In the drawings, the list of components represented by each reference numeral is as follows:

[0023] 1. Housing; 2. Reaction chamber; 3. Drying chamber; 301. Air inlet hole; 302. Air outlet hole; 4. Cooling and collection chamber; 5. Centrifugal atomizer; 6. First blower; 7. Second blower; 8. First partition; 9. Second partition; 10. Water pipe; 11. First intake pipe; 12. First outlet pipe; 13. Second intake pipe; 14. Second outlet pipe; 15. Adsorption type compressed air dryer; 16. Heater; 17. Feed inlet; 18. Discharge outlet; 19. Stirring motor; 20. Stirring blade; 21. Fixed bracket; 22. Unpowered blade; 23. Exhauster; 24. Vacuum heat insulation board. Detailed Embodiments

[0024] The principles and features of the present utility model will be described below with reference to the accompanying drawings. The examples given are only for explaining the present utility model and are not intended to limit the scope of the present utility model.

[0025] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present utility model.

[0026] Such as Figures 1-4As shown in the figure, a reaction device for solid polycarboxylate superplasticizer includes a housing 1, a reaction chamber 2, a drying chamber 3, a cooling and collection chamber 4, a centrifugal atomizer 5, a first blower 6 and a second blower 7. Inside the housing 1, a first partition 8 and a second partition 9 are horizontally arranged in sequence from top to bottom. The area between the first partition 8 and the top of the housing 1 and the housing is the reaction chamber 2. An inlet 17 communicating with the reaction chamber 2 is opened at the top of the housing 1. The area between the first partition 8 and the second partition 9 is the drying chamber 3. The area between the lower part of the second partition 9 and the bottom of the housing 1 is the cooling and collection chamber 4. The second partition 9 is a cone-shaped with a middle part bulging upward and there is a gap between its outer edge and the housing 1. An outlet 18 is arranged at the bottom of the cooling and collection chamber 4. A centrifugal atomizer 5 is arranged at the top of the inner cavity of the drying chamber 3. The bottom outlet of the reaction chamber 2 is connected to the centrifugal atomizer 5 through a water pipe 10. Air inlet holes 301 and air outlet holes 302 are opened on the side wall of the drying chamber 3. A first blower 6 is arranged outside the housing 1. The first blower 6 is connected to the air inlet hole 301 through a first air inlet pipe 11. An adsorption type compressed air dryer 15 and a heater 16 are sequentially arranged on the first air inlet pipe 11. A second blower 7 is also arranged outside the housing 1. The second blower 7 is connected to the cooling and collection chamber 4 through a second air inlet pipe 13. A second air outlet pipe 14 opposite to the second air inlet pipe 13 is arranged on the side wall of the cooling and collection chamber 4;

[0027] The reaction chamber 2 is used to mix the raw materials put in at the inlet 17 to obtain liquid polycarboxylate superplasticizer. The drying chamber 3 is used to dry the liquid polycarboxylate superplasticizer to form solid polycarboxylate superplasticizer. The centrifugal atomizer 5 is used to atomize the liquid polycarboxylate superplasticizer. The first blower 6 and the adsorption type compressed air dryer 15 are used to blow dry air into the inner side of the drying chamber 3. The heater 16 is used to heat the dry air to form dry hot air. The dry hot air is used to adsorb the moisture in the atomized polycarboxylate superplasticizer and blow it out from the air outlet hole 302. The solid polycarboxylate superplasticizer particles slide along the edge of the second partition 9 to the cooling and collection chamber 4. The second blower 7 is used to transport normal temperature air to the cooling and collection chamber 4. The cooling and collection chamber 4 is used to collect the solid polycarboxylate superplasticizer particles.

[0028] As an implementation manner, a stirring motor 19 is arranged at the top of the housing 1. The output end of the stirring motor 19 is provided with stirring blades 20 extending to the inner side of the reaction chamber 2.

[0029] As an implementation manner, a fixed bracket 21 is arranged below the centrifugal atomizer 5 on the inner side of the drying chamber 3. An idle blade 22 is arranged on the vertical central axis of the fixed bracket 21. The idle blade 22 is flush with the air inlet hole 301. The idle blade 22 can be rotated by the hot air entering from the air inlet hole 301.

[0030] As an implementation manner, the part of the water pipe 10 located at the top of the first partition 8 is wavy.

[0031] As an implementation manner, the height of the air outlet 302 is higher than the height of the air inlet 301.

[0032] As an implementation manner, an air extractor 23 is arranged on the first air outlet pipe 12, and the air extractor 23 is used to extract the air in the drying chamber 3.

[0033] As an implementation manner, both the first air outlet pipe 12 and the second air outlet pipe 14 are L-shaped and the output ends face upward.

[0034] As an implementation manner, a vacuum heat insulation board 24 is arranged at the bottom of the second partition 9.

[0035] In the utility model, an electric control valve is arranged at the connection between the water pipe and the reaction chamber 2. The electric control valve is initially in a closed state. One-way air valves are arranged at one ends of the first air inlet pipe 11 and the second air inlet pipe 13 close to the drying chamber. The one-way air valve on the first air inlet pipe 11 is used to prevent the hot air inside the drying chamber from flowing back into the first air inlet pipe 11. The one-way air valve on the first air outlet pipe 12 is used to prevent external air from entering the drying chamber through the first air outlet pipe 12. The output end of the second air inlet pipe 13 is provided with a plurality of side-by-side branch pipe outlets.

[0036] The working process of the present utility model: The raw materials required for producing liquid polycarboxylate water reducer are put into the reaction chamber 2 through the feed inlet 17 at the top of the housing 1. The stirring motor 19 in the reaction chamber 2 is started to drive the stirring blade 20 to rotate, so that the raw materials are fully mixed in the reaction chamber 2 and undergo a chemical reaction to generate liquid polycarboxylate water reducer. After standing for a period of time, the electric control valve will be opened, and the liquid polycarboxylate water reducer generated in the reaction chamber 2 flows through the water pipe 10 to the centrifugal atomizer 5. The centrifugal atomizer 5 disperses it into fine misty particles. The first blower 6 is started to convey air to the first air inlet pipe 11. After removing moisture and impurities through the adsorption type compressed air dryer 15, it is then heated into dry hot air through the heater 16. These dry hot air enters the drying chamber 3 through the air inlet hole 301, contacts with the misty polycarboxylate water reducer, adsorbs the moisture therein and evaporates to form solid polycarboxylate water reducer particles. The dry air after contacting with the misty polycarboxylate water reducer is discharged by the air extractor 23 through the air outlet hole 302 and the first air outlet pipe 12. The air extractor 23 on the first air outlet pipe 12 assists in accelerating the exhaust gas emission to ensure the air circulation in the drying chamber 3. At the same time, the unpowered blade 22 is pushed by the hot air to rotate to form a rotating air flow, driving the solid polycarboxylate water reducer particles to rotate to avoid the aggregation and adhesion of the solid polycarboxylate water reducer particles. The dried solid polycarboxylate water reducer particles fall along the second partition plate 9 into the cooling and collection chamber 4. The second blower 7 conveys normal temperature air to the cooling and collection chamber 4 through the second air inlet pipe 13 to cool the particles, and then the air is discharged from the second air outlet pipe 14. The cooled solid polycarboxylate water reducer particles accumulate in the cooling and collection chamber 4 and are finally discharged and collected through the discharge outlet 18.

[0037] The above is an example of the best implementation mode of the present utility model, and the parts not described in detail are all common general knowledge of those skilled in the art. The protection scope of the present utility model shall be subject to the content of the claims, and any equivalent transformation based on the technical inspiration of the present utility model is also within the protection scope of the present utility model.

Claims

1. A reaction device for solid polycarboxylate water-reducing agent, characterized in that, It includes a housing (1), a reaction chamber (2), a drying chamber (3), a cooling and collection chamber (4), a centrifugal atomizer (5), a first blower (6) and a second blower (7). Inside the housing (1), a first partition plate (8) and a second partition plate (9) are horizontally arranged in sequence from top to bottom. The area between the first partition plate (8) and the top of the housing (1) is the reaction chamber (2). A feed inlet (17) communicating with the reaction chamber (2) is provided at the top of the housing (1). The area between the first partition plate (8) and the second partition plate (9) is the drying chamber (3). The area between the lower part of the second partition plate (9) and the bottom of the housing (1) is the cooling and collection chamber (4). The second partition plate (9) is a conical shape with the middle part bulging upward and there is a gap between the outer edge and the housing (1). An outlet (18) is provided at the bottom of the cooling and collection chamber (4). The centrifugal atomizer (5) is arranged at the top of the inner cavity of the drying chamber (3). The bottom outlet of the reaction chamber (2) is connected to the centrifugal atomizer (5) through a water pipe (10). Air inlet holes (301) and air outlet holes (302) are provided on the side wall of the drying chamber (3). The first blower (6) is arranged outside the housing (1). The first blower (6) is connected to the air inlet hole (301) through a first air inlet pipe (11). An adsorption type compressed air dryer (15) and a heater (16) are sequentially arranged on the first air inlet pipe (11). The second blower (7) is also arranged outside the housing (1). The second blower (7) is connected to the cooling and collection chamber (4) through a second air inlet pipe (13). A second air outlet pipe (14) opposite to the second air inlet pipe (13) is provided on the side wall of the cooling and collection chamber (4). The reaction chamber (2) is used to mix the raw materials put in at the feed inlet (17) to obtain a liquid polycarboxylate water reducer. The drying chamber (3) is used to dry the liquid polycarboxylate water reducer to form a solid polycarboxylate water reducer. The centrifugal atomizer (5) is used to atomize the liquid polycarboxylate water reducer. The first blower (6) and the adsorption type compressed air dryer (15) are used to blow dry air into the inner side of the drying chamber (3). The heater (16) is used to heat the dry air to form dry hot air. The dry hot air is used to adsorb the moisture in the atomized polycarboxylate water reducer and blow it out from the air outlet hole (302). The solid polycarboxylate water reducer particles slide down along the edge of the second partition plate (9) into the cooling and collection chamber (4). The second blower (7) is used to convey normal temperature air to the cooling and collection chamber (4). The cooling and collection chamber (4) is used to collect the solid polycarboxylate water reducer particles.

2. The reaction device for solid polycarboxylate water reducer according to claim 1, characterized in that A stirring motor (19) is arranged at the top of the housing (1). The output end of the stirring motor (19) is provided with stirring blades (20) extending to the inner side of the reaction chamber (2).

3. The reaction device for solid polycarboxylate water reducing agent according to claim 1, characterized in that, A fixed bracket (21) is provided inside the drying chamber (3) and below the centrifugal atomizer (5). An unpowered blade (22) is provided on the vertical central axis of the fixed bracket (21). The unpowered blade (22) is flush with the air inlet hole (301), and the unpowered blade (22) can be rotated by the hot air entering from the air inlet hole (301).

4. A reaction device for solid polycarboxylate water reducer according to claim 1, characterized in that, The part of the water pipe (10) located at the top of the first partition (8) is wavy.

5. A reaction device for solid polycarboxylate water reducer according to claim 1, characterized in that, The height of the air outlet hole (302) is higher than the height of the air inlet hole (301).

6. The reaction device for solid polycarboxylate water reducer according to claim 1, characterized in that, A first air outlet pipe (12) is provided on the housing (1), and an air extractor (23) is provided on the first air outlet pipe (12). The air extractor (23) is used to extract the air in the drying chamber (3).

7. The reaction device for solid polycarboxylate water reducer according to claim 6, characterized in that, Both the first air outlet pipe (12) and the second air outlet pipe (14) are L-shaped and their output ends face upward.

8. A reaction device for solid polycarboxylate water reducer according to claim 1, characterized in that, A vacuum heat insulation board (24) is provided at the bottom of the second partition (9).

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