Cleaning agent for online descaling and preparation method thereof

Abstract

The invention discloses a cleaning agent for online descaling. The cleaning agent is prepared from the following raw materials in parts by weight: 10 to 15 parts of modified microcline, 6 to 10 parts of octanol polyoxyethylene ether, 4 to 7 parts of sodium thiocyanate, 3 to 6 parts of sodium humate, 8 to 12 parts of modified tourmaline, 8 to 12 parts of deionized water and 2 to 4 parts of silane coupling agent KH560. According to the cleaning agent for online descaling, the octanol polyoxyethylene ether, the sodium thiocyanate and the sodium humate are matched with the modified microplagioclase and the modified tourmaline, balance improvement of the cleaning efficiency and the boiler corrosion protection performance of the obtained cleaning agent is achieved through blending and synergistic effects of the raw materials, and meanwhile the cleaning agent is remarkable in corrosion resistance and heat-resistant stability effect.

Description

Technical Field

[0001] The present invention relates to the technical field of cleaning agents, and in particular to a cleaning agent for online descaling and a preparation method thereof. Background Art

[0002] The hot water or steam generated in the boiler can directly provide the required thermal energy for industrial production and people's lives, or it can be converted into mechanical energy through a steam power device, or the mechanical energy can be converted into electrical energy through a generator. The boiler that provides hot water is called a hot water boiler, which is mainly used for life and also has a small number of applications in industrial production. The boiler that generates steam is called a steam boiler, often referred to as a boiler, and is mostly used in thermal power plants, ships, locomotives and industrial and mining enterprises.

[0003] In order to improve the cleaning efficiency of descaling, existing cleaning agents are prone to cause boiler corrosion, making it difficult to achieve balanced performance improvements. At the same time, the cleaning agents have poor corrosion resistance and heat stability, further limiting the product's efficiency. Summary of the Invention

[0004] In view of the defects of the prior art, the purpose of the present invention is to provide a cleaning agent for online descaling and a preparation method thereof, so as to solve the problems raised in the above background technology.

[0005] The present invention solves the technical problem by adopting the following technical solutions: The present invention provides a cleaning agent for online descaling, comprising the following raw materials in parts by weight: 10-15 parts of modified microcline, 6-10 parts of octanol polyoxyethylene ether, 4-7 parts of sodium thiocyanate, 3-6 parts of sodium humate, 8-12 parts of modified tourmaline, 8-12 parts of deionized water and 2-4 parts of silane coupling agent KH560.

[0006] Preferably, the cleaning agent for online descaling comprises the following raw materials in parts by weight: 12.5 parts of modified microcline, 8 parts of octanol polyoxyethylene ether, 5.5 parts of sodium thiocyanate, 4.5 parts of sodium humate, 10 parts of modified tourmaline, 10 parts of deionized water and 3 parts of silane coupling agent KH560.

[0007] Preferably, the preparation method of the modified microcline is: S1: adding microcline to a sodium dodecylbenzene sulfonate solution at a weight ratio of 2:5, and then adding carboxymethyl cellulose (10-15% of the total amount of the microcline) and hydroxyapatite (2-5% of the total amount of the microcline), and mixing thoroughly to obtain a microcline solution; S2: Immersing the nano-titanium dioxide into a dopamine hydrochloride solution with a volume 2-5 times the total volume of the nano-titanium dioxide and stirring thoroughly to obtain a nano-titanium dioxide solution; S3: Ultrasonic treatment is performed on the nano-titanium dioxide solution and the microcline solution in a weight ratio of 2:5. After the ultrasonic treatment is completed, the solution is filtered and dried to obtain modified microcline.

[0008] Preferably, the mass fraction of the sodium dodecylbenzenesulfonate solution is 2-5%; the mass fraction of the dopamine hydrochloride solution is 4-7%.

[0009] Preferably, the ultrasonic treatment is performed at an ultrasonic power of 450-500 W for 1 hour.

[0010] Preferably, the preparation method of modified tourmaline is: S11: Stir flaky talc powder thoroughly in a sufficient amount of hydrogen peroxide solution, then wash with water, filter, and dry; The dried flaky talc powder, chitosan solution and sodium stearate were mixed in a weight ratio of 2:5:1 to obtain a flaky talc liquid; S12: Tourmaline and lanthanum oxide are thoroughly mixed in a weight ratio of 2:1, and then heat-treated at 210-220° C. for 1 hour. After the treatment is completed, the mixture is air-cooled to room temperature to obtain a tourmaline agent; The flaky talc liquid and the tourmaline agent are mixed in a weight ratio of 2:5 and subjected to ball milling. After the ball milling is completed, the mixture is filtered and dried to obtain modified tourmaline.

[0011] Preferably, the mass fraction of the hydrogen peroxide solution is 2-5%; and the mass fraction of the chitosan solution is 4-7%.

[0012] Preferably, the rotation speed of the mixing ball mill is 1000-1500 r / min, and the ball milling time is 1 hour.

[0013] A method for preparing a cleaning agent for online descaling comprises the following steps: weighing raw materials according to weight, and mixing the raw materials thoroughly to obtain the cleaning agent of the present invention.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The cleaning agent for online descaling of the present invention adopts octanol polyoxyethylene ether, sodium thiocyanate, sodium humate, modified microcline and modified tourmaline. Through the synergistic effect of the raw materials, the cleaning efficiency and boiler corrosion protection of the obtained cleaning agent are balanced and improved. At the same time, the corrosion resistance and heat stability of the cleaning agent are remarkable. The modified microcline adopts microcline optimized by specific raw materials and is further blended and improved with nano titanium dioxide liquid. The modified tourmaline adopts flaky talc powder blended with chitosan solution and sodium stearate. The tourmaline and lanthanum oxide are mixed and heat-modified. Through the coordination and synergy between the raw materials, the performance of the product is further improved. DETAILED DESCRIPTION

[0015] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] A cleaning agent for online descaling in this embodiment includes the following raw materials in parts by weight: 10-15 parts of modified microcline, 6-10 parts of octanol polyoxyethylene ether, 4-7 parts of sodium thiocyanate, 3-6 parts of sodium humate, 8-12 parts of modified tourmaline, 8-12 parts of deionized water and 2-4 parts of silane coupling agent KH560.

[0017] The cleaning agent for online descaling in this embodiment includes the following raw materials in parts by weight: 12.5 parts of modified microcline, 8 parts of octanol polyoxyethylene ether, 5.5 parts of sodium thiocyanate, 4.5 parts of sodium humate, 10 parts of modified tourmaline, 10 parts of deionized water and 3 parts of silane coupling agent KH560.

[0018] The preparation method of the modified microcline in this embodiment is: S1: adding microcline to a sodium dodecylbenzene sulfonate solution at a weight ratio of 2:5, and then adding carboxymethyl cellulose (10-15% of the total amount of the microcline) and hydroxyapatite (2-5% of the total amount of the microcline), and mixing thoroughly to obtain a microcline solution; S2: Immersing the nano-titanium dioxide into a dopamine hydrochloride solution with a volume 2-5 times the total volume of the nano-titanium dioxide and stirring thoroughly to obtain a nano-titanium dioxide solution; S3: Ultrasonic treatment is performed on the nano-titanium dioxide solution and the microcline solution in a weight ratio of 2:5. After the ultrasonic treatment is completed, the solution is filtered and dried to obtain modified microcline.

[0019] The mass fraction of the sodium dodecylbenzenesulfonate solution in this embodiment is 2-5%; the mass fraction of the dopamine hydrochloride solution is 4-7%.

[0020] The ultrasonic treatment in this embodiment has an ultrasonic power of 450-500 W and is carried out for 1 hour.

[0021] The preparation method of the modified tourmaline of the present embodiment is: S11: Stir flaky talc powder thoroughly in a sufficient amount of hydrogen peroxide solution, then wash with water, filter, and dry; The dried flaky talc powder, chitosan solution and sodium stearate were mixed in a weight ratio of 2:5:1 to obtain a flaky talc liquid; S12: Tourmaline and lanthanum oxide are thoroughly mixed in a weight ratio of 2:1, and then heat-treated at 210-220° C. for 1 hour. After the treatment is completed, the mixture is air-cooled to room temperature to obtain a tourmaline agent; The flaky talc liquid and the tourmaline agent are mixed in a weight ratio of 2:5 and subjected to ball milling. After the ball milling is completed, the mixture is filtered and dried to obtain modified tourmaline.

[0022] The mass fraction of the hydrogen peroxide solution in this embodiment is 2-5%; the mass fraction of the chitosan solution is 4-7%.

[0023] The rotation speed of the mixing ball mill in this embodiment is 1000-1500 r / min, and the ball milling is performed for 1 hour.

[0024] The method for preparing a cleaning agent for online descaling of this embodiment includes the following steps: weighing raw materials according to weight, and mixing the raw materials to obtain the cleaning agent of the present invention.

[0025] Example 1. A cleaning agent for online descaling in this embodiment includes the following raw materials in parts by weight: 10 parts of modified microcline, 6 parts of octanol polyoxyethylene ether, 4 parts of sodium thiocyanate, 3 parts of sodium humate, 8 parts of modified tourmaline, 8 parts of deionized water and 2 parts of silane coupling agent KH560.

[0026] The preparation method of the modified microcline in this embodiment is: S1: adding microcline to sodium dodecylbenzene sulfonate solution in a weight ratio of 2:5, and then adding carboxymethyl cellulose (10% of the total amount of microcline) and hydroxyapatite (2% of the total amount of microcline) and mixing thoroughly to obtain a microcline solution; S2: immersing the nano-titanium dioxide into a dopamine hydrochloride solution having an amount twice that of the total amount of the nano-titanium dioxide and stirring thoroughly to obtain a nano-titanium dioxide solution; S3: Ultrasonic treatment is performed on the nano-titanium dioxide solution and the microcline solution in a weight ratio of 2:5. After the ultrasonic treatment is completed, the solution is filtered and dried to obtain modified microcline.

[0027] The mass fraction of the sodium dodecylbenzenesulfonate solution in this embodiment is 2%; the mass fraction of the dopamine hydrochloride solution is 4%.

[0028] The ultrasonic treatment in this embodiment was performed with an ultrasonic power of 450 W and for 1 hour.

[0029] The preparation method of the modified tourmaline of the present embodiment is: S11: Stir flaky talc powder thoroughly in a sufficient amount of hydrogen peroxide solution, then wash with water, filter, and dry; The dried flaky talc powder, chitosan solution and sodium stearate were mixed in a weight ratio of 2:5:1 to obtain a flaky talc liquid; S12: Tourmaline and lanthanum oxide are mixed thoroughly in a weight ratio of 2:1, and then heat-treated at 210° C. for 1 hour. After the treatment is completed, the mixture is air-cooled to room temperature to obtain a tourmaline agent; The flaky talc liquid and the tourmaline agent are mixed in a weight ratio of 2:5 and subjected to ball milling. After the ball milling is completed, the mixture is filtered and dried to obtain modified tourmaline.

[0030] The mass fraction of the hydrogen peroxide solution in this embodiment is 2%; the mass fraction of the chitosan solution is 4%.

[0031] The rotation speed of the mixing ball mill in this embodiment is 1000 r / min, and the ball milling is performed for 1 hour.

[0032] The method for preparing a cleaning agent for online descaling of this embodiment includes the following steps: weighing raw materials according to weight, and mixing the raw materials to obtain the cleaning agent of the present invention.

[0033] Example 2. A cleaning agent for online descaling in this embodiment includes the following raw materials in parts by weight: 15 parts of modified microcline, 10 parts of octanol polyoxyethylene ether, 7 parts of sodium thiocyanate, 6 parts of sodium humate, 12 parts of modified tourmaline, 12 parts of deionized water and 24 parts of silane coupling agent KH560.

[0034] The preparation method of the modified microcline in this embodiment is as follows: S1: adding microcline to sodium dodecylbenzene sulfonate solution in a weight ratio of 2:5, and then adding carboxymethyl cellulose (15% of the total amount of microcline) and hydroxyapatite (5% of the total amount of microcline) and mixing thoroughly to obtain a microcline solution; S2: immersing the nano-titanium dioxide into a dopamine hydrochloride solution having a volume 5 times that of the total amount of the nano-titanium dioxide and stirring thoroughly to obtain a nano-titanium dioxide solution; S3: Ultrasonic treatment is performed on the nano-titanium dioxide solution and the microcline solution in a weight ratio of 2:5. After the ultrasonic treatment is completed, the solution is filtered and dried to obtain modified microcline.

[0035] The mass fraction of the sodium dodecylbenzenesulfonate solution in this embodiment is 5%; the mass fraction of the dopamine hydrochloride solution is 7%.

[0036] The ultrasonic treatment in this embodiment was performed with an ultrasonic power of 500 W and ultrasonic treatment for 1 hour.

[0037] The preparation method of the modified tourmaline of the present embodiment is: S11: Stir flaky talc powder thoroughly in a sufficient amount of hydrogen peroxide solution, then wash with water, filter, and dry; The dried flaky talc powder, chitosan solution and sodium stearate were mixed in a weight ratio of 2:5:1 to obtain a flaky talc liquid; S12: Tourmaline and lanthanum oxide are mixed thoroughly in a weight ratio of 2:1, and then heat-treated at 220° C. for 1 hour. After the treatment is completed, the mixture is air-cooled to room temperature to obtain a tourmaline agent; The flaky talc liquid and the tourmaline agent are mixed in a weight ratio of 2:5 and subjected to ball milling. After the ball milling is completed, the mixture is filtered and dried to obtain modified tourmaline.

[0038] The mass fraction of the hydrogen peroxide solution in this embodiment is 5%; the mass fraction of the chitosan solution is 7%.

[0039] The rotation speed of the mixing ball mill in this embodiment is 1500 r / min, and the ball milling is performed for 1 hour.

[0040] The method for preparing a cleaning agent for online descaling of this embodiment includes the following steps: weighing raw materials according to weight, and mixing the raw materials to obtain the cleaning agent of the present invention.

[0041] Example 3. A cleaning agent for online descaling in this embodiment includes the following raw materials in parts by weight: 12.5 parts of modified microcline, 8 parts of octanol polyoxyethylene ether, 5.5 parts of sodium thiocyanate, 4.5 parts of sodium humate, 10 parts of modified tourmaline, 10 parts of deionized water and 3 parts of silane coupling agent KH560.

[0042] The preparation method of the modified microcline in this embodiment is as follows: S1: adding microcline to sodium dodecylbenzene sulfonate solution in a weight ratio of 2:5, and then adding carboxymethyl cellulose (12.5% of the total amount of microcline) and hydroxyapatite (3.5% of the total amount of microcline), and mixing thoroughly to obtain a microcline solution; S2: immersing the nano-titanium dioxide into a dopamine hydrochloride solution having a volume 3.5 times the total volume of the nano-titanium dioxide and stirring thoroughly to obtain a nano-titanium dioxide solution; S3: Ultrasonic treatment is performed on the nano-titanium dioxide solution and the microcline solution in a weight ratio of 2:5. After the ultrasonic treatment is completed, the solution is filtered and dried to obtain modified microcline.

[0043] The mass fraction of the sodium dodecylbenzenesulfonate solution in this embodiment is 3.5%; the mass fraction of the dopamine hydrochloride solution is 5.5%.

[0044] The ultrasonic treatment in this embodiment was performed at an ultrasonic power of 475 W and for 1 hour.

[0045] The preparation method of the modified tourmaline of the present embodiment is: S11: Stir flaky talc powder thoroughly in a sufficient amount of hydrogen peroxide solution, then wash with water, filter, and dry; The dried flaky talc powder, chitosan solution and sodium stearate were mixed in a weight ratio of 2:5:1 to obtain a flaky talc liquid; S12: Tourmaline and lanthanum oxide are mixed thoroughly in a weight ratio of 2:1, and then heat-treated at 215° C. for 1 hour. After the treatment is completed, the mixture is air-cooled to room temperature to obtain a tourmaline agent; The flaky talc liquid and the tourmaline agent are mixed in a weight ratio of 2:5 and subjected to ball milling. After the ball milling is completed, the mixture is filtered and dried to obtain modified tourmaline.

[0046] The mass fraction of the hydrogen peroxide solution in this embodiment is 3.5%; the mass fraction of the chitosan solution is 5.5%.

[0047] The rotation speed of the mixing ball mill in this embodiment is 1250 r / min, and the ball milling is performed for 1 hour.

[0048] The method for preparing a cleaning agent for online descaling of this embodiment includes the following steps: weighing raw materials according to weight, and mixing the raw materials to obtain the cleaning agent of the present invention.

[0049] Comparative Example 1. The difference from Example 3 is that no modified microcline was added.

[0050] Comparative Example 2. The difference from Example 3 is that no nano-titanium dioxide liquid is added in the preparation of the modified microcline.

[0051] Comparative Example 3. The difference from Example 3 is that the modification method of the modified microcline is different; S1: adding microcline to sodium dodecylbenzene sulfonate solution at a weight ratio of 2:5, and then adding carboxymethyl cellulose (12.5% of the total amount of microcline), and mixing thoroughly to obtain a microcline solution; S3: Ultrasonic treatment of nano-titanium dioxide and microcline solution in a weight ratio of 2:5 is performed. After the ultrasonic treatment is completed, the solution is filtered and dried to obtain modified microcline.

[0052] Comparative Example 4. The difference from Example 3 is that no modified tourmaline is added.

[0053] Comparative Example 5. The difference from Example 3 is that the preparation method of the modified tourmaline is different; S11: Stir flaky talc powder thoroughly in a sufficient amount of hydrogen peroxide solution, then wash with water, filter, and dry; Mix the dried flaky talc powder and chitosan solution in a weight ratio of 2:5 to obtain a flaky talc solution; S12: mixing flaky talc and tourmaline in a weight ratio of 2:5 and subjecting the mixture to ball milling. After the ball milling is completed, the mixture is filtered and dried to obtain modified tourmaline.

[0054] Examples 1-3 and Comparative Examples 1-5 were subjected to conventional tests, and the products were placed in 2% hydrochloric acid mist for 24 hours and then placed at 65°C for 24 hours to test the corrosion resistance and heat stability of the products. The performance tests are as follows:

[0055] It can be seen from Comparative Examples 1-5 and Example 3 that when no modified microcline or modified tourmaline is added to the product, the performance of the product deteriorates significantly. At the same time, when no nano-titanium dioxide liquid is added in the preparation of the modified microcline, the modification methods of the modified microcline are different, and the preparation methods of the modified tourmaline are different, the performance of the product tends to deteriorate. The performance of the product obtained by the specific method of the present invention is the most significant.

[0056] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations that come within the meaning and range of equivalents of the claims be embraced therein.

[0057] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A cleaning agent for online descaling, characterized in that: It includes the following raw materials in parts by weight: 10-15 parts of modified microcline, 6-10 parts of octanol polyoxyethylene ether, 4-7 parts of sodium thiocyanate, 3-6 parts of sodium humate, 8-12 parts of modified tourmaline, 8-12 parts of deionized water and 2-4 parts of silane coupling agent KH560.

2. The cleaning agent for online descaling according to claim 1, characterized in that: The cleaning agent for online descaling comprises the following raw materials in parts by weight: 12.5 parts of modified microcline, 8 parts of octanol polyoxyethylene ether, 5.5 parts of sodium thiocyanate, 4.5 parts of sodium humate, 10 parts of modified tourmaline, 10 parts of deionized water and 3 parts of silane coupling agent KH560.

3. The cleaning agent for online descaling according to claim 2, characterized in that: The preparation method of the modified microcline is: S1: adding microcline to a sodium dodecylbenzene sulfonate solution at a weight ratio of 2:5, and then adding carboxymethyl cellulose (10-15% of the total amount of the microcline) and hydroxyapatite (2-5% of the total amount of the microcline), and mixing thoroughly to obtain a microcline solution; S2: immersing the nano-titanium dioxide into a dopamine hydrochloride solution having a volume of 2-5 times the total volume of the nano-titanium dioxide and stirring thoroughly to obtain a nano-titanium dioxide solution; S3: Ultrasonic treatment is performed on the nano-titanium dioxide solution and the microcline solution in a weight ratio of 2:

5. After the ultrasonic treatment is completed, the solution is filtered and dried to obtain modified microcline.

4. The cleaning agent for online descaling according to claim 3, characterized in that: The mass fraction of the sodium dodecylbenzenesulfonate solution is 2-5%; the mass fraction of the dopamine hydrochloride solution is 4-7%.

5. The cleaning agent for online descaling according to claim 3, characterized in that: The ultrasonic power of the ultrasonic treatment was 450-500 W, and the ultrasonic treatment lasted for 1 h.

6. The cleaning agent for online descaling according to claim 1, characterized in that: The preparation method of modified tourmaline is: S11: Stir flaky talc powder thoroughly in a sufficient amount of hydrogen peroxide solution, then wash with water, filter, and dry; The dried flaky talc powder, chitosan solution and sodium stearate were mixed in a weight ratio of 2:5:1 to obtain a flaky talc liquid; S12: Tourmaline and lanthanum oxide are thoroughly mixed in a weight ratio of 2:1, and then heat-treated at 210-220° C. for 1 hour. After the treatment is completed, the mixture is air-cooled to room temperature to obtain a tourmaline agent; The flaky talc liquid and the tourmaline agent are mixed in a weight ratio of 2:5 and subjected to ball milling. After the ball milling is completed, the mixture is filtered and dried to obtain modified tourmaline.

7. The cleaning agent for online descaling according to claim 6, characterized in that: The mass fraction of the hydrogen peroxide solution is 2-5%; the mass fraction of the chitosan solution is 4-7%.

8. The cleaning agent for online descaling according to claim 6, characterized in that: The mixing ball mill was operated at a speed of 1000-1500 r / min for 1 h.

9. A method for preparing a cleaning agent for online descaling, characterized in that: The following steps are involved: The raw materials are weighed according to parts by weight and mixed thoroughly to obtain the cleaning agent of the present invention.

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