Hydrophobic agent production equipment

Abstract

The utility model belongs to the technical field of chemical equipment, and specifically relates to a hydrophobic agent production device, including a wax dissolving tank, which is sequentially connected to a shear tank and a hydrophobic agent preparation tank group, a steam coil is arranged inside the wax dissolving tank, an emulsifier barrel and a steam pipe are respectively connected to the top of the shear tank, a buffer tank, a filter, a homogenizer unit and a plate heat exchanger are sequentially arranged between the shear tank and the hydrophobic agent preparation tank group, the homogenizer unit includes a first homogenizer and a second homogenizer, a circulation pipe 1 is arranged on the first homogenizer, and a circulation pipe 2 is arranged on the second homogenizer. The utility model can enhance the quality stability of hydrophobic agent products, reduce the waste of raw materials and production rework caused by product quality problems, and reduce production costs.

Description

Technical Field

[0001] The utility model belongs to the technical field of chemical equipment, and in particular relates to a hydrophobic agent production device. Background Art

[0002] Hydrophobic agent is a chemical substance that can make the surface of an object hydrophobic. From the perspective of chemical composition, hydrophobic agents can be divided into silicone hydrophobic agents, fluorocarbon hydrophobic agents, paraffin hydrophobic agents, rosin hydrophobic agents and other types. Among them, the main component of paraffin hydrophobic agent is paraffin, which is made into hydrophobic agent through emulsification and other processes. Paraffin hydrophobic agent has low raw material cost and mature preparation process, and is widely used in waterproof treatment of cellulose substrates such as paper and wood.

[0003] However, the existing paraffin hydrophobic agent production equipment has certain limitations in mixing, dispersion and temperature control. On the one hand, the emulsification equipment cannot generate sufficient shear force and turbulence, so that the emulsifier and paraffin cannot be fully mixed and dispersed, resulting in larger particles or agglomeration in the emulsion, affecting the stability of the hydrophobic agent product; on the other hand, the heating capacity of the heating equipment is insufficient or the heating is uneven, resulting in insufficient melting of the paraffin or oxidative thermal degradation, seriously affecting the quality of the hydrophobic agent product. Utility Model Content

[0004] The utility model aims to provide a hydrophobic agent production device, which can enhance the quality stability of hydrophobic agent products, reduce the waste of raw materials and production rework caused by product quality problems, and reduce production costs.

[0005] To achieve the above purpose, the technical solution of the utility model is:

[0006] A hydrophobic agent production device comprises a wax dissolving tank, which is connected in sequence to a shear tank and a hydrophobic agent preparation tank group, a steam coil is arranged inside the wax dissolving tank, an emulsifier barrel and a steam pipe are respectively connected to the top of the shear tank, a buffer tank, a filter, a homogenizing unit and a plate heat exchanger are arranged in sequence between the shear tank and the hydrophobic agent preparation tank group, the homogenizing unit comprises a first homogenizer and a second homogenizer, a circulation pipe 1 is arranged on the first homogenizer, and a circulation pipe 2 is arranged on the second homogenizer.

[0007] in:

[0008] An emulsifier feeding pump is arranged between the emulsifier barrel and the shear tank.

[0009] One end of the first homogenizer is connected to the filter, the other end of the first homogenizer is connected to the second homogenizer, and one end of the second homogenizer away from the first homogenizer is connected to the plate heat exchanger.

[0010] The circulation pipe 2 is connected to the circulation pipe 1.

[0011] A feeding pipe is arranged at one end of the plate heat exchanger away from the homogenizing unit, and one end of the feeding pipe away from the plate heat exchanger is respectively connected to a first feeding pipe and a second feeding pipe.

[0012] The hydrophobic agent mixing tank group includes a first hydrophobic agent mixing tank and a second hydrophobic agent mixing tank. The first hydrophobic agent mixing tank is surrounded by a first chilled water pipe, and the second hydrophobic agent mixing tank is surrounded by a second chilled water pipe.

[0013] The end of the feed pipe 1 away from the feeding pipe is connected to the first hydrophobic agent preparation tank, and the end of the feed pipe 2 away from the feeding pipe is connected to the second hydrophobic agent preparation tank.

[0014] The bottom of the first hydrophobic agent preparation tank is equipped with a discharge pipe 1, and the bottom of the second hydrophobic agent preparation tank is equipped with a discharge pipe 2. The end of the discharge pipe 1 away from the first hydrophobic agent preparation tank and the end of the discharge pipe 2 away from the second hydrophobic agent preparation tank are jointly connected to a conveying pipe.

[0015] The end of the conveying pipe away from the discharge pipe is divided into conveying pipe one and conveying pipe two. The end of conveying pipe one away from the conveying pipe is connected to a hydrophobic agent filling device, and the end of conveying pipe two away from the conveying pipe is connected to a hydrophobic agent barrel.

[0016] The delivery pipe is equipped with a hydrophobic agent delivery pump.

[0017] The beneficial effects of the utility model are as follows: a steam coil is arranged in the wax melting tank, which can indirectly heat the paraffin in the wax melting tank, prevent local overheating from causing paraffin decomposition or oxidation, and prevent steam condensate from mixing into the paraffin to affect product purity; a steam pipe is connected to the top of the shear tank, which can directly introduce steam to quickly heat up the inside of the shear tank and improve production efficiency; the homogenizing unit can circulate and homogenize the emulsion, further refine the paraffin particles in the emulsion, and enhance the stability of the emulsion. The device can enhance the quality stability of the hydrophobic agent product, reduce the waste of raw materials and production rework caused by product quality problems, and reduce production costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model;

[0019] In the figure:

[0020] 1. Waxing tank; 2. Shear tank; 3. Hydrophobic agent mixing tank group; 301. First hydrophobic agent mixing tank; 302. Second hydrophobic agent mixing tank; 4. Emulsifier barrel; 5. Steam coil; 6. Steam pipe; 7. Buffer tank; 8. Filter; 9. Homogenizer unit; 901. First homogenizer; 902. Second homogenizer; 10. Plate heat exchanger; 11. Emulsifier feeding pump; 12. Circulation pipe one; 13. Circulation pipe two; 14. Chilled water pipe one; 15. Chilled water pipe two; 16. Feed pipe; 17. Feed pipe one; 18. Feed pipe two; 19. Discharge pipe one; 20. Discharge pipe two; 21. Delivery pipe; 22. Delivery pipe one; 23. Delivery pipe two; 24. Hydrophobic agent filling device; 25. Hydrophobic agent barrel; 26. Hydrophobic agent delivery pump. DETAILED DESCRIPTION

[0021] The present invention will be specifically described and illustrated below in conjunction with the embodiments.

[0022] Example 1

[0023] like Figure 1 As shown, the hydrophobic agent production device described in the utility model includes a wax melting tank 1, which is connected to a shear tank 2 and a hydrophobic agent preparation tank group 3 in sequence, a steam coil 5 is arranged inside the wax melting tank 1, an emulsifier barrel 4 and a steam pipe 6 are respectively connected to the top of the shear tank 2, a buffer tank 7, a filter 8, a homogenizer unit 9 and a plate heat exchanger 10 are arranged between the shear tank 2 and the hydrophobic agent preparation tank group 3 in sequence, the homogenizer unit 9 includes a first homogenizer 901 and a second homogenizer 902, the first homogenizer 901 is provided with a circulation pipe 12, and the second homogenizer 902 is provided with a circulation pipe 2 13.

[0024] The emulsifier barrel 4 is provided with a copolymer of dimethyldiallyl ammonium chloride and diallylamine. The lipophilic groups in the copolymer of dimethyldiallyl ammonium chloride and diallylamine are well compatible with paraffin wax, so that the paraffin wax can be dispersed in water in the form of tiny droplets to form a homogeneous emulsion, thereby improving the quality stability of the hydrophobic agent product. A steam coil 5 is provided in the wax melting tank 1, which can indirectly heat the paraffin wax in the wax melting tank 1 to prevent local overheating from causing paraffin decomposition or oxidation, and at the same time prevent steam condensed water from mixing into the paraffin wax and affecting the purity of the product. The top of the shear tank 2 is connected to a steam pipe 6, which can directly pass steam to quickly heat up the inside of the shear tank 2 and improve production efficiency. The top of the shear tank 2 is connected to a process water pipeline.

[0025] An emulsifier feeding pump 11 is provided between the emulsifier barrel 4 and the shear tank 2 .

[0026] One end of the first homogenizer 901 is connected to the filter 8, the other end of the first homogenizer 901 is connected to the second homogenizer 902, and one end of the second homogenizer 902 away from the first homogenizer 901 is connected to the plate heat exchanger 10. The plate heat exchanger 10 can cool the temperature of the emulsion to 40°C, preventing the high-temperature emulsion from directly entering the hydrophobic agent preparation tank group 3, which is conducive to improving the quality of the hydrophobic agent product.

[0027] The circulation pipe 2 13 is connected to the circulation pipe 1 12. The emulsion is circulated and homogenized through the circulation pipe 1 12 and the circulation pipe 2 13 to further refine the paraffin particles in the emulsion and enhance the stability of the emulsion.

[0028] A feeding pipe 16 is provided at one end of the plate heat exchanger 10 away from the homogenizing unit 9, and a feeding pipe 1 17 and a feeding pipe 2 18 are connected to one end of the feeding pipe 16 away from the plate heat exchanger 10, respectively.

[0029] The hydrophobic agent preparation tank group 3 includes a first hydrophobic agent preparation tank 301 and a second hydrophobic agent preparation tank 302. The first hydrophobic agent preparation tank 301 is surrounded by a chilled water pipe 14, and the second hydrophobic agent preparation tank 302 is surrounded by a chilled water pipe 2 15. Liquid aluminum sulfate is provided in the first hydrophobic agent preparation tank 301 and the second hydrophobic agent preparation tank 302. Liquid aluminum sulfate can reduce the electrostatic repulsion between emulsion particles and improve the stability of the emulsion. The chilled water pipe 1 14 and the chilled water pipe 2 15 can maintain the hydrophobic agent preparation tank group 3 in a stable temperature environment to prevent the decomposition of the components of the hydrophobic agent product due to temperature increase. The top of the first hydrophobic agent preparation tank 301 and the top of the second hydrophobic agent preparation tank 302 are both connected to process water pipelines.

[0030] One end of the feed pipe 17 away from the feeding pipe 16 is connected to the first hydrophobic agent preparation tank 301, and one end of the feed pipe 2 18 away from the feeding pipe 16 is connected to the second hydrophobic agent preparation tank 302.

[0031] A discharge pipe 19 is provided at the bottom of the first hydrophobic agent preparation tank 301, and a discharge pipe 20 is provided at the bottom of the second hydrophobic agent preparation tank 302. The end of the discharge pipe 19 away from the first hydrophobic agent preparation tank 301 and the end of the discharge pipe 20 away from the second hydrophobic agent preparation tank 302 are connected to a conveying pipe 21.

[0032] The end of the conveying pipe 21 away from the discharge pipe 19 is divided into a conveying pipe 1 22 and a conveying pipe 2 23. The end of the conveying pipe 1 22 away from the conveying pipe 21 is connected to a hydrophobic agent filling device 24, and the end of the conveying pipe 23 away from the conveying pipe 21 is connected to a hydrophobic agent barrel 25.

[0033] The delivery pipe 21 is provided with a hydrophobic agent delivery pump 26 .

[0034] Operation process and principle:

[0035] Waxing process:

[0036] Paraffin is put into the wax melting tank 1, and the temperature of the wax melting tank 1 is raised to 70°C by the steam coil 5 arranged inside the wax melting tank 1, so that the paraffin is fully melted.

[0037] Emulsification process:

[0038] Emulsifier and process water are added to the shear tank 2. The emulsifier is a copolymer of dimethyldiallyl ammonium chloride and diallylamine. The copolymer of dimethyldiallyl ammonium chloride and diallylamine is arranged inside the emulsifier barrel 4 and is transported to the shear tank 2 through the emulsifier feeding pump 11. Steam is directly introduced into the shear tank 2 through the steam pipe 6 to raise the temperature in the shear tank 2 to 70°C. The paraffin melted in the wax melting tank 1 is added to the shear tank 2 and emulsified for 15-20 minutes to allow the paraffin and the emulsifier to be preliminarily mixed and evenly formed into an emulsion.

[0039] Homogenization process:

[0040] The emulsion passes through the buffer tank 7 and the filter 8 in sequence and enters the first homogenizer 901. The first homogenizer 901 performs preliminary homogenization treatment on the emulsion. After the emulsion is treated once in the first homogenizer 901, it returns to the first homogenizer 901 through the circulation pipe 1 12 and is homogenized again. This cycle is repeated three times. The emulsion that has been fully treated by the first homogenizer 901 flows to the second homogenizer 902. The second homogenizer 902 performs deep homogenization treatment on the emulsion from the first homogenizer 901. After the emulsion is treated once in the second homogenizer 902, it returns to the second homogenizer 902 through the circulation pipe 2 13 and is homogenized again. This cycle is repeated three times.

[0041] Preparation process:

[0042] The emulsion after homogenization enters the plate heat exchanger 10 to be cooled to 40°C. The cooled emulsion is transported to the hydrophobic agent mixing tank group 3 through the feeding pipe 16, the feeding pipe 17 and the feeding pipe 2 18. The first hydrophobic agent mixing tank 301 and the second hydrophobic agent mixing tank 302 in the hydrophobic agent mixing tank group 3 are pre-added with liquid aluminum sulfate and process water. The emulsion is mixed and mixed in the first hydrophobic agent mixing tank 301 and the second hydrophobic agent mixing tank 302 to obtain a finished hydrophobic agent product.

[0043] Filling process:

[0044] A portion of the finished hydrophobic agent is transported to the hydrophobic agent filling device 24 via the transport pipe 1 22 for filling, and another portion of the finished hydrophobic agent is transported to the hydrophobic agent ton barrel 25 via the transport pipe 2 23 for storage.

Claims

1. A hydrophobic agent production device, comprising a wax dissolving tank (1), the wax dissolving tank (1) being sequentially connected to a shear tank (2) and a hydrophobic agent preparation tank group (3), characterized in that: A steam coil (5) is arranged inside the wax melting tank (1), an emulsifier barrel (4) and a steam pipe (6) are respectively connected to the top of the shear tank (2), a buffer tank (7), a filter (8), a homogenizer unit (9) and a plate heat exchanger (10) are arranged in sequence between the shear tank (2) and the hydrophobic agent preparation tank group (3), the homogenizer unit (9) comprises a first homogenizer (901) and a second homogenizer (902), a circulation pipe 1 (12) is arranged on the first homogenizer (901), and a circulation pipe 2 (13) is arranged on the second homogenizer (902).

2. The hydrophobic agent production device according to claim 1, characterized in that: An emulsifier feeding pump (11) is provided between the emulsifier barrel (4) and the shear tank (2).

3. The hydrophobic agent production device according to claim 1, characterized in that: One end of the first homogenizer (901) is connected to the filter (8), the other end of the first homogenizer (901) is connected to the second homogenizer (902), and one end of the second homogenizer (902) away from the first homogenizer (901) is connected to the plate heat exchanger (10).

4. The hydrophobic agent production device according to claim 3, characterized in that: The circulation pipe 2 (13) is connected to the circulation pipe 1 (12).

5. The hydrophobic agent production device according to claim 4, characterized in that: A feed pipe (16) is provided at one end of the plate heat exchanger (10) away from the homogenizing unit (9), and one end of the feed pipe (16) away from the plate heat exchanger (10) is respectively connected to a feed pipe 1 (17) and a feed pipe 2 (18).

6. The hydrophobic agent production device according to claim 5, characterized in that: The hydrophobic agent preparation tank group (3) comprises a first hydrophobic agent preparation tank (301) and a second hydrophobic agent preparation tank (302), wherein a first chilled water pipe (14) is arranged around the first hydrophobic agent preparation tank (301), and a second chilled water pipe (15) is arranged around the second hydrophobic agent preparation tank (302).

7. The hydrophobic agent production device according to claim 6, characterized in that: One end of the feed pipe 1 (17) away from the feeding pipe (16) is connected to the first hydrophobic agent preparation tank (301), and one end of the feed pipe 2 (18) away from the feeding pipe (16) is connected to the second hydrophobic agent preparation tank (302).

8. The hydrophobic agent production device according to claim 7, characterized in that: A discharge pipe 1 (19) is provided at the bottom of the first hydrophobic agent preparation tank (301), and a discharge pipe 2 (20) is provided at the bottom of the second hydrophobic agent preparation tank (302). An end of the discharge pipe 1 (19) away from the first hydrophobic agent preparation tank (301) and an end of the discharge pipe 2 (20) away from the second hydrophobic agent preparation tank (302) are connected to a conveying pipe (21).

9. The hydrophobic agent production device according to claim 8, characterized in that: The end of the conveying pipe (21) away from the discharge pipe 1 (19) is divided into a conveying pipe 1 (22) and a conveying pipe 2 (23); the end of the conveying pipe 1 (22) away from the conveying pipe (21) is connected to a hydrophobic agent filling device (24), and the end of the conveying pipe 2 (23) away from the conveying pipe (21) is connected to a hydrophobic agent ton barrel (25).

10. The hydrophobic agent production device according to claim 8, characterized in that: The delivery pipe (21) is provided with a hydrophobic agent delivery pump (26).

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