WT-1 water softener and its preparation process

Abstract

The present invention relates to the technical field of water softeners, and in particular to WT-1 water softener and its preparation process, comprising the following steps: S1: selecting high-purity raw water for ultrafiltration treatment; S2: mixing phosphate-type corrosion inhibitor with treated raw water; S3: slowly adding polycarboxylic acid to the above-mentioned mixed solution, maintaining stirring until it is completely dispersed and dissolved; S4: then slowly adding polyacid at a temperature of 50°C; S5: first premixing a nonionic surfactant with the treated raw water to form an emulsion, and then slowly adding it to the aforementioned mixed solution, maintaining stirring until completely uniform, to form a mixed solution A; S6: dehydrating the mixed solution A using vacuum dehydration technology; S7: further drying the semi-solid product obtained in the previous step using spray drying technology. The present invention is environmentally friendly, efficient, economical and practical, and combined with innovative drying technology, it not only ensures product quality and stability, but also promotes technological innovation and application expansion.

Description

Technical Field

[0001] The invention relates to the technical field of water softeners, in particular to a WT-1 water softener and a preparation process thereof. Background Art

[0002] With the acceleration of industrialization, coal, as one of the important energy sources, is increasingly used in all walks of life. However, during the combustion of coal, a large amount of hard water will be produced. Hard water contains high levels of calcium and magnesium ions. These ions may cause scaling of equipment, reduce efficiency and increase energy consumption in industrial production.

[0003] Most of the water softeners in the prior art are based on chemical synthesis. These water softeners may contain chemicals that are harmful to the human body or the environment, and may not be efficient enough when treating hard water. In addition, the water softeners in the prior art may require the use of a large amount of harmful solvents during the preparation process, which not only increases production costs but also may pose a potential threat to the environment and workers' health.

[0004] In addition, the solid content of water softeners is also a major challenge in research and production. High solid content means good product stability and easy storage and transportation, but traditional preparation methods make it difficult to ensure high solid content and product stability.

[0005] Spray drying technology and vacuum dehydration technology have been widely used in many fields, but their application in the preparation of water softeners is not mature enough. Therefore, how to combine these efficient drying technologies with the preparation process of water softeners to achieve high solid content, high efficiency and environmentally friendly water softeners is an important research direction at present.

[0006] In summary, the development of a new, environmentally friendly and efficient method for preparing a water softener can not only meet market demand but also reduce the potential impact on the environment and human body, which has important practical significance and research value. Summary of the invention

[0007] Based on the above purpose, the present invention provides a WT-1 water softener and a preparation process thereof.

[0008] WT-1 water softener, including phosphate corrosion inhibitor, polycarboxylic acid, polyacid, nonionic surfactant and water, wherein the mass percentage of each component is:

[0009] Phosphate type corrosion inhibitor: 20-25%;

[0010] Polycarboxylic acid: 10-15%;

[0011] Polyacid salt: 5-10%;

[0012] Nonionic surfactant: 1-3%;

[0013] Water: 47-64%.

[0014] Furthermore, the phosphate ester corrosion inhibitor is phosphoric acid, sodium monohydrogen phosphate or sodium dihydrogen phosphate; the polycarboxylic acid is acrylic acid, maleic acid or crotonic acid; and the polyacid salt is sodium tripolyphosphate, sodium tetrapolyphosphate or sodium pentapolyphosphate.

[0015] The preparation process of WT-1 water softener includes the following steps:

[0016] S1: Select high-purity raw water and perform ultrafiltration to remove impurities and suspended matter;

[0017] S2: Mix the phosphate corrosion inhibitor with the treated raw water to make it completely dissolved;

[0018] S3: slowly add the polycarboxylic acid into the above mixture, and keep stirring until it is completely dispersed and dissolved;

[0019] S4: Then, slowly add the polysalt at a temperature of 50°C to ensure its uniform distribution;

[0020] S5: premixing the nonionic surfactant with the treated raw water to form an emulsion, and then slowly adding the premixed surfactant to the aforementioned mixed solution, stirring until the mixture is completely uniform, to form a mixed solution A;

[0021] S6: Dehydrating the mixed solution A using vacuum dehydration technology until the solid content reaches 98%;

[0022] S7: The semi-solid product obtained in the previous step is further dried using spray drying technology to ensure that the solid content of the final product reaches more than 99%.

[0023] Furthermore, the pore size of the ultrafiltration membrane specifically used in the ultrafiltration treatment in S1 is 0.01-0.1 micrometers, the treatment flow rate is 1-2 L / min, the operating pressure is maintained at 0.5-2.0 bar, and the treatment time is 2-3 hours.

[0024] Furthermore, the S2 specifically includes:

[0025] S21: first preheating the treated raw water to 50° C., and continuously monitoring and maintaining the temperature using a temperature control device;

[0026] S22: slowly adding phosphate corrosion inhibitor to the preheated raw water, with the addition rate maintained at 3 g / min;

[0027] S23: stirring the mixed solution using a high-speed stirrer at a rotation speed of 600 rpm;

[0028] S24: Stirring was continued for 60 minutes, during which the liquid temperature was maintained at 50° C., and the dissolution was monitored every 15 minutes until the solution was completely dissolved.

[0029] Furthermore, the S3 specifically includes:

[0030] S31: Before adding the polycarboxylic acid, first confirm that the temperature of the mixed solution is maintained at 50-60°C, and use a temperature control device to ensure that the temperature is stable during the addition process;

[0031] S32: using a constant rate dropping device or a metering pump, slowly adding the polycarboxylic acid into the above mixed solution at a rate of 1.5 g / min;

[0032] S33: continuously stirring the mixed solution using a high-speed stirrer at a rotation speed of 600 rpm;

[0033] S34: After the addition is completed, stirring is continued for 40 minutes. During the stirring process, visual or measurement inspection is performed every 10 minutes until the polycarboxylic acid is completely dispersed and dissolved in the mixed solution.

[0034] Furthermore, the step of slowly adding the polyacid salt in S4 specifically includes slowly adding the polyacid salt at a rate of 1.5 g / min using a constant speed dripping device or a metering pump, and stirring at a speed of 520 rpm using a high-speed stirrer for 30 minutes.

[0035] Furthermore, the specific steps of forming the mixed solution A in S5 include:

[0036] S51: Select a nonionic surfactant and ensure that the amount thereof accounts for 2% of the volume of the predetermined mixed solution;

[0037] S52: In a separate container, the nonionic surfactant and the treated raw water are mixed in a ratio of 1:4, and mixed using a high-speed stirrer at a speed of 400-450 rpm for 25-30 minutes until the mixture becomes an emulsion;

[0038] S53: slowly adding the formed emulsion mixture into the aforementioned mixed solution at a rate of 2.5 g / min using a constant rate dropping device or a metering pump;

[0039] S54: During the addition process, continue to use the high-speed stirrer and maintain the rotation speed at 550 rpm to ensure that the non-ionic surfactant emulsion is fully combined with the aforementioned mixed solution. The stirring time is 35 minutes until it is completely uniform, and finally a mixed solution A is formed.

[0040] Furthermore, the vacuum dehydration technology in S6 specifically includes:

[0041] S61: Pour the mixed solution A into a vacuum dehydration device, start the vacuum dehydration device, initially set the vacuum degree to -0.85 bar, and continue the operation for 1 hour to start the dehydration process;

[0042] S62: Every 30 minutes, the solid content in the mixed solution A is detected by a solid content detection device to ensure that it gradually approaches 98%;

[0043] S63: When the solid content reaches 96-97%, fine-tune the vacuum degree to -0.9 bar, and continue dehydration for 15 minutes until the solid content of the mixed solution A stably reaches 98%;

[0044] S64: When the predetermined solid content is reached, the vacuum dehydration device is closed and the obtained product is subjected to the next step of processing.

[0045] Furthermore, the spray drying technology in S7 specifically includes:

[0046] S71: Transfer the semi-solid product obtained in the previous step to the spray tower of the spray dryer, and ensure that the temperature in the tower is set at 190°C;

[0047] S72: Set the spray rate of the nebulizer to 15 mL / min;

[0048] S73: During the drying process, the water vapor content at the outlet is continuously monitored to ensure that it is within the range of 2-3%, indicating that the drying process is proceeding effectively;

[0049] S74: using a product solid content detection device to detect the solid content in the product every 20 minutes to track its drying progress;

[0050] S75: When the solid content of the product reaches 98.5%, fine-tune the temperature in the tower to 185°C and continue drying for 12 minutes. The solid content of the final product is stably over 99%.

[0051] Beneficial effects of the present invention:

[0052] The present invention greatly reduces the harm to the environment and human health by avoiding the use of potentially harmful chemicals. Compared with traditional water softeners, this water softener is not only more efficient in treating hard water, but also reduces the dependence on harmful solvents in the production process, further ensuring the health and safety of workers and end users.

[0053] The water softener with high solid content is not only more stable, but also has higher economic benefits during storage and transportation. In addition, by combining spray drying technology and vacuum dehydration technology, not only the solid content of the product is increased, but also the production process is optimized, the production cost is reduced, and the market competitiveness is further improved.

[0054] The present invention combines the high-efficiency drying technology with the preparation of water softeners. This method combines the advantages of the two and creates a new path for the preparation of water softeners. In addition, the successful application of this method may also provide inspiration for chemicals in other fields, such as cleaning agents, detergents and other industrial chemicals. This technical integration not only demonstrates the innovativeness of the preparation of water softeners, but may also have a far-reaching impact on related fields and promote more extensive technological innovation and application expansion. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0056] Figure 1 Schematic diagram of the preparation process of the water softener according to an embodiment of the present invention. DETAILED DESCRIPTION

[0057] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments.

[0058] It should be noted that, unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0059] Example 1

[0060] like Figure 1 As shown, WT-1 water softener includes phosphate corrosion inhibitor, polycarboxylic acid, polyacid, nonionic surfactant and water, wherein the weight percentage of each component is:

[0061] Phosphate type corrosion inhibitor: 23%;

[0062] Polycarboxylic acid: 13%;

[0063] Polycarboxylic acid salt: 7%;

[0064] Nonionic surfactant: 2%;

[0065] Water: 55%;

[0066] This combination can effectively remove calcium and magnesium ions in water to obtain soft water with high stability and long service life.

[0067] The phosphate ester corrosion inhibitor is phosphoric acid; the polycarboxylic acid is acrylic acid; and the polyacid is sodium tripolyphosphate.

[0068] The preparation process of WT-1 water softener includes the following steps:

[0069] S1: Select high-purity raw water and perform ultrafiltration to remove impurities and suspended matter;

[0070] S2: Mix the phosphate corrosion inhibitor with the treated raw water to make it completely dissolved;

[0071] S3: slowly add the polycarboxylic acid into the above mixture, and keep stirring until it is completely dispersed and dissolved;

[0072] S4: Then, slowly add the polysalt at a temperature of 50°C to ensure its uniform distribution;

[0073] S5: premixing the nonionic surfactant with the treated raw water to form an emulsion, and then slowly adding the premixed surfactant to the aforementioned mixed solution, stirring until the mixture is completely uniform, to form a mixed solution A;

[0074] S6: Dehydrating the mixed solution A using vacuum dehydration technology until the solid content reaches 98%;

[0075] S7: The semi-solid product obtained in the previous step is further dried using spray drying technology to ensure that the solid content of the final product reaches more than 99%.

[0076] The pore size of the ultrafiltration membrane used in the ultrafiltration treatment in S1 is 0.05 microns, the treatment flow rate is 1.5L / min, the operating pressure is maintained at 1.5bar, and the treatment time is 2.5 hours, thereby ensuring that the large molecular impurities, bacteria and suspended matter in the raw water are effectively intercepted to obtain raw water with high purity.

[0077] S2 specifically includes:

[0078] S21: first preheat the treated raw water to 50°C, and use a temperature control device to continuously monitor and maintain the temperature;

[0079] S22: Slowly add phosphate type corrosion inhibitor to the preheated raw water, and maintain the addition rate at 3 g / min to ensure uniform combination of phosphate type corrosion inhibitor and raw water and prevent aggregation;

[0080] S23: using a high-speed stirrer at a speed of 600 rpm to stir the mixed solution to ensure that the phosphate corrosion inhibitor and the raw water are fully integrated;

[0081] S24: Stirring was continued for 60 minutes, during which the liquid temperature was maintained at 50° C., and the dissolution was monitored every 15 minutes until the solution was completely dissolved.

[0082] S3 specifically includes:

[0083] S31: Before adding the polycarboxylic acid, first confirm that the temperature of the mixed solution is maintained at 50-60°C, and use a temperature control device to ensure that the temperature is stable during the addition process;

[0084] S32: using a constant speed dripping device or a metering pump, slowly adding the polycarboxylic acid to the above-mentioned mixed solution at a rate of 1.5 g / min to ensure uniform dispersion of the polycarboxylic acid and prevent excessively fast addition from causing reaction overflow or bubble generation;

[0085] S33: using a high-speed stirrer to continuously stir the mixed solution at a rotation speed of 600 rpm to ensure that the polycarboxylic acid and the mixed solution are fully integrated;

[0086] S34: After the addition is completed, stirring is continued for 40 minutes to ensure that the polycarboxylic acid is completely dissolved and dispersed. During the stirring process, visual or measurement inspection is performed every 10 minutes until the polycarboxylic acid is completely dispersed and dissolved in the mixed solution.

[0087] S4 slowly adding the polyacid salt specifically includes slowly adding the polyacid salt at a rate of 1.5 g / min using a constant speed dripping device or a metering pump, and at the same time, stirring at a speed of 520 rpm using a high-speed stirrer for 30 minutes to ensure uniform distribution and complete dissolution of the polyacid salt in the mixed solution.

[0088] The specific steps of forming the mixed solution A in S5 include:

[0089] S51: Select a nonionic surfactant and ensure that the amount thereof accounts for 2% of the volume of the predetermined mixed solution;

[0090] S52: In a separate container, the nonionic surfactant and the treated raw water are mixed in a ratio of 1:4, and mixed using a high-speed stirrer at a speed of 400-450 rpm for 25-30 minutes until the mixture becomes an emulsion;

[0091] S53: slowly adding the formed emulsion mixture into the aforementioned mixed solution at a rate of 2.5 g / min using a constant rate dropping device or a metering pump;

[0092] S54: During the addition process, continue to use the high-speed stirrer and maintain the rotation speed at 550 rpm to ensure that the non-ionic surfactant emulsion is fully combined with the aforementioned mixed solution. The stirring time is 35 minutes until it is completely uniform, and finally a mixed solution A is formed.

[0093] The vacuum dehydration technology in S6 specifically includes:

[0094] S61: Pour the mixed solution A into a vacuum dehydration device, start the vacuum dehydration device, initially set the vacuum degree to -0.85 bar, and continue the operation for 1 hour to start the dehydration process;

[0095] S62: Every 30 minutes, the solid content in the mixed solution A is detected by a solid content detection device to ensure that it gradually approaches 98%;

[0096] S63: When the solid content reaches 96-97%, fine-tune the vacuum degree to -0.9 bar, and continue dehydration for 15 minutes until the solid content of the mixed solution A stably reaches 98%;

[0097] S64: When the predetermined solid content is reached, the vacuum dehydration device is closed and the obtained product is subjected to the next step of processing.

[0098] The spray drying technology in S7 specifically includes:

[0099] S71: The semi-solid product obtained in the previous step is transferred to the spray tower of the spray dryer, and the temperature in the tower is set at 190°C for efficient drying;

[0100] S72: Set the spray rate of the sprayer to 15 mL / min to ensure that the semi-solid product is sprayed evenly and finely into the high-temperature drying area;

[0101] S73: During the drying process, the water vapor content at the outlet is continuously monitored to ensure that it is within the range of 2-3%, indicating that the drying process is proceeding effectively;

[0102] S74: using a product solid content detection device to detect the solid content in the product every 20 minutes to track its drying progress;

[0103] S75: When the solid content of the product reaches 98.5%, fine-tune the temperature in the tower to 185°C and continue drying for 12 minutes. The solid content of the final product is stably over 99%.

[0104] Example 2

[0105] The difference from Example 1 is that the raw materials are prepared according to the following mass percentages: phosphate corrosion inhibitor: 20%; polycarboxylic acid: 10%; polyacid salt: 5%; nonionic surfactant: 1%; water: 64%;

[0106] Among them, sodium monohydrogen phosphate is selected as the phosphate ester corrosion inhibitor, maleic acid is used as the polycarboxylic acid, and sodium tetrapolyphosphate is used as the polyacid salt.

[0107] The preparation process is as follows:

[0108] S1: Use ultrafiltration membrane with pore size of 0.01 micron to treat raw water, with a treatment flow rate of 1L / min, operating pressure of 0.5bar, and treatment time of 2 hours to obtain high-purity raw water;

[0109] S2: preheat the raw water to 50°C, and slowly add phosphoric acid to the preheated raw water at a rate of 3 g / min, and stir at a speed of 600 rpm for 60 minutes;

[0110] S3: Ensure that the temperature of the mixed solution is 55°C, then slowly add acrylic acid at a rate of 1.5 g / min, and stir at a speed of 600 rpm for 40 minutes;

[0111] S4: At 50°C, sodium tripolyphosphate was slowly added at a rate of 1.5 g / min using a constant rate dropper, and stirred at a speed of 520 rpm for 30 minutes;

[0112] S5: Mix the nonionic surfactant and the treated raw water in a ratio of 1:4, then slowly add the mixture to the mixed solution, and stir at a speed of 550 rpm for 35 minutes to form a mixed solution A;

[0113] S6: using vacuum dehydration technology to increase the solid content of mixed solution A to 98%;

[0114] S7: Spray drying technology is used to increase the solid content of the product to more than 99%.

[0115] Example 3

[0116] The difference from Example 1 is that the raw materials are prepared according to the following mass percentages: phosphate corrosion inhibitor: 25%; polycarboxylic acid: 15%; polyacid: 10%; nonionic surfactant: 3%; water: 47%;

[0117] Among them, sodium dihydrogen phosphate is selected as the phosphate ester corrosion inhibitor, butenoic acid is used as the polycarboxylic acid, and sodium pentapolyphosphate is used as the polyacid salt.

[0118] The preparation process is as follows:

[0119] S1: Use ultrafiltration membrane with pore size of 0.1 micron to treat raw water, with a treatment flow rate of 2L / min, operating pressure of 2.0bar, and treatment time of 3 hours to obtain high-purity raw water;

[0120] S2: preheat the raw water to 50°C, and slowly add phosphoric acid to the preheated raw water at a rate of 3 g / min, and stir at a speed of 600 rpm for 60 minutes;

[0121] S3: Ensure that the temperature of the mixed solution is 55°C, then slowly add acrylic acid at a rate of 1.5 g / min, and stir at a speed of 600 rpm for 40 minutes;

[0122] S4: At 50°C, sodium tripolyphosphate was slowly added at a rate of 1.5 g / min using a constant rate dropper, and stirred at a speed of 520 rpm for 30 minutes;

[0123] S5: Mix the nonionic surfactant and the treated raw water in a ratio of 1:4, then slowly add the mixture to the mixed solution, and stir at a speed of 550 rpm for 35 minutes to form a mixed solution A;

[0124] S6: using vacuum dehydration technology to increase the solid content of mixed solution A to 98%;

[0125] S7: Spray drying technology is used to increase the solid content of the product to more than 99%.

[0126] Table 1 Performance comparison experimental data

[0127] Performance Indicators Example 1 Example 2 Example 3 Corrosion inhibition effect (%) 98 95 97 Stability (hr) 48 36 45 Solubility (g / L) 20 15 17 pH 7 7.2 6.8 Storage stability June 5.5 months May

[0128] According to the data in Table 1, it can be seen that Example 1 has the best corrosion inhibition effect, the longest duration, and has excellent solubility and stability. Although Example 3 is similar to Example 1 in corrosion inhibition effect and stability, it is slightly insufficient in other performance indicators. Example 2 is slightly inferior to Example 1 and Example 3 in all performance indicators. Therefore, based on the above data, we can conclude that Example 1 is the best embodiment.

[0129] The present invention is intended to cover all such substitutions, modifications and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A process for preparing a WT-1 water softener, wherein the WT-1 water softener comprises a phosphate type corrosion inhibitor, polycarboxylic acid, polyacid salt, a nonionic surfactant and water, wherein the mass percentage of each component is: Phosphate type corrosion inhibitor: 20-25%; Polycarboxylic acid: 10-15%; Polyacid salt: 5-10%; Nonionic surfactant: 1-3%; Water: 47-64%; The phosphate ester corrosion inhibitor is phosphoric acid, sodium monohydrogen phosphate or sodium dihydrogen phosphate; the polycarboxylic acid is acrylic acid, maleic acid or crotonic acid; the polyacid is sodium tripolyphosphate, sodium tetrapolyphosphate or sodium pentapolyphosphate; It is characterized in that The WT-1 water softener comprises the following preparation steps: S1: Select high-purity raw water and perform ultrafiltration to remove impurities and suspended matter; S2: Mix the phosphate corrosion inhibitor with the treated raw water to make it completely dissolved; S3: slowly add polycarboxylic acid to the S2 mixture, and keep stirring until it is completely dispersed and dissolved; S4: Then, at a temperature of 50°C, slowly add the polysalt to ensure that it is evenly distributed; S5: premixing the nonionic surfactant with the treated raw water to form an emulsion, and then slowly adding the premixed surfactant to the aforementioned mixed solution, stirring until the mixture is completely uniform, to form a mixed solution A; S6: Dehydrating the mixed solution A using vacuum dehydration technology until the solid content reaches 98%; S7: using spray drying technology to further dry the semi-solid product obtained in the previous step to ensure that the solid content of the final product reaches more than 99%; The pore size of the ultrafiltration membrane used in the ultrafiltration treatment in S1 is 0.01-0.1 micrometers, the treatment flow rate is 1-2 L / min, the operating pressure is maintained at 0.5-2.0 bar, and the treatment time is 2-3 hours.

2. The preparation process of WT-1 water softener according to claim 1, characterized in that: The S2 specifically includes: S21: first preheating the treated raw water to 50°C, and continuously monitoring and maintaining the temperature using a temperature control device; S22: slowly adding phosphate corrosion inhibitor to the preheated raw water, with the addition rate maintained at 3 g / min; S23: stirring the mixed solution using a high-speed stirrer at a rotation speed of 600 rpm; S24: Stirring was continued for 60 minutes, during which the liquid temperature was maintained at 50°C, and the dissolution was monitored every 15 minutes until complete dissolution was achieved.

3. The preparation process of WT-1 water softener according to claim 2, characterized in that: The S3 specifically includes: S31: Before adding the polycarboxylic acid, first confirm that the temperature of the mixed solution is maintained at 50-60°C, and use a temperature control device to ensure that the temperature is stable during the addition process; S32: using a constant rate dropping device or a metering pump, slowly adding the polycarboxylic acid into the above mixed solution at a rate of 1.5 g / min; S33: continuously stirring the mixed solution using a high-speed stirrer at a rotation speed of 600 rpm; S34: After the addition is completed, stirring is continued for 40 minutes. During the stirring process, visual or measurement inspection is performed every 10 minutes until the polycarboxylic acid is completely dispersed and dissolved in the mixed solution.

4. The preparation process of WT-1 water softener according to claim 1, characterized in that: The step of slowly adding the polyacid salt in step S4 specifically includes slowly adding the polyacid salt at a rate of 1.5 g / min using a constant speed dripping device or a metering pump, and stirring at a speed of 520 rpm using a high-speed stirrer for 30 minutes.

5. The preparation process of WT-1 water softener according to claim 1, characterized in that: The specific steps of forming the mixed solution A in S5 include: S51: Select a non-ionic surfactant and ensure that its amount accounts for 2% of the volume of the predetermined mixed solution; S52: In a separate container, the nonionic surfactant and the treated raw water are mixed in a ratio of 1:4, and mixed using a high-speed stirrer at a speed of 450 rpm for 25 minutes until the mixture becomes an emulsion; S53: slowly adding the formed emulsion mixture into the aforementioned mixed solution at a rate of 2.5 g / min using a constant rate dropping device or a metering pump; S54: During the addition process, continue to use the high-speed stirrer and maintain the rotation speed at 550 rpm to ensure that the non-ionic surfactant emulsion is fully combined with the aforementioned mixed solution. The stirring time is 35 minutes until it is completely uniform, and finally a mixed solution A is formed.

6. The preparation process of WT-1 water softener according to claim 1, characterized in that: The vacuum dehydration technology in S6 specifically includes: S61: Pour the mixed solution A into a vacuum dehydration device, start the vacuum dehydration device, initially set the vacuum degree to -0.85 bar, and continue the operation for 1 hour to start the dehydration process; S62: Every 30 minutes, the solid content in the mixed liquid A is tested by a solid content testing device to ensure that it gradually approaches 98%; S63: When the solid content reaches 96-97%, fine-tune the vacuum degree to -0.9 bar and continue dehydration for 15 minutes until the solid content of the mixed solution A reaches 98% stably; S64: When the predetermined solid content is reached, the vacuum dehydration device is closed and the obtained product is subjected to the next step of processing.

7. The preparation process of WT-1 water softener according to claim 1, characterized in that: The spray drying technology in S7 specifically includes: S71: Transfer the semi-solid product obtained in the previous step to the spray tower of the spray dryer, and ensure that the temperature in the tower is set at 190°C; S72: Set the spray rate of the nebulizer to 15 mL / min; S73: During the drying process, the water vapor content at the outlet is continuously monitored to ensure that it is within the range of 2-3%, indicating that the drying process is proceeding effectively; S74: using a product solid content detection device to detect the solid content in the product every 20 minutes to track its drying progress; S75: When the solid content of the product reaches 98.5%, fine-tune the temperature in the tower to 185°C and continue drying for 12 minutes. The solid content of the final product is stably over 99%.

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