Production device of polycarboxylate superplasticizer

Abstract

The utility model discloses a production device of a polycarboxylate superplasticizer, which belongs to the technical field of polycarboxylate superplasticizer production and comprises a polymerization tank, a feed end of the polymerization tank is connected with a first premixing tank, a second premixing tank and a macromonomer dissolving tank, the polymerization tank is further connected with a neutralizing tank, a discharge end of the polymerization tank is connected with an adjusting tank, and the adjusting tank is connected with a water pump. Stirring devices are arranged in the first premixing tank, the second premixing tank, the large monomer dissolving tank and the neutralizing tank, a heating device is arranged in the first premixing tank, and PH value measuring instruments are arranged in the neutralizing tank and the adjusting tank. When the polycarboxylate superplasticizer is produced, a reaction kettle is not required to be used, a plurality of devices are applied to each step, and meanwhile, structures matched with the steps are arranged in each device, so that the material proportion and the reaction time in the reaction process can be more conveniently controlled, and the production efficiency and the finished product quality are improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of polycarboxylic acid water reducer production, in particular to a polycarboxylic acid water reducer production device. Background Art

[0002] Polycarboxylate water reducer is a highly efficient concrete admixture with the advantages of high water reduction rate, low dosage, excellent slump retention, low concrete shrinkage, strong molecular structure adjustability, high performance potential, etc. In recent years, with the rapid development of my country's construction industry, polycarboxylate water reducer has been widely used and promoted.

[0003] In the prior art, the production of polycarboxylic acid water-reducing agent is completed by adding various materials to the reactor in order and in a quantitative manner, stirring and mixing, heating, standing and cooling, etc., and finally sending the finished product into the finished product tank. Although this method uses less equipment and has low production costs, it only uses a single container for production. When the reactor is mixing or standing, other steps cannot be performed, which greatly affects production efficiency; at the same time, using only a single reaction container, the reactor, it is difficult to control the material ratio and reaction time in the reactor during the specific production process, thereby affecting the quality of the finished product. Utility Model Content

[0004] The utility model provides a production device of a polycarboxylic acid water-reducing agent, which is used to solve the technical problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A production device for a polycarboxylic acid water-reducing agent comprises a polymerization tank, wherein a feed end of the polymerization tank is connected to a first premixing tank, a second premixing tank and a macromonomer dissolving tank, the polymerization tank is also connected to a neutralization tank, a discharge end of the polymerization tank is connected to an adjustment tank, a stirring device is arranged in the first premixing tank, the second premixing tank, the macromonomer dissolving tank and the neutralization tank, a heating device is arranged in the first premixing tank, and a pH value measuring instrument is arranged in the neutralization tank and the adjustment tank.

[0007] Compared with the prior art, the beneficial effects of the utility model are:

[0008] The utility model provides the first premixing tank, the second premixing tank, the macromonomer dissolving tank, the polymerization tank, the adjustment tank and other equipment, so that the device does not need to use a reaction kettle when producing polycarboxylate water reducer, but applies multiple equipment to each step, and simultaneously provides a structure adapted to the step in each equipment, so that the material ratio and reaction time in the reaction process can be more conveniently controlled, and the production efficiency and the quality of the finished product can be improved.

[0009] As a further improvement of the above solution, the first premixing tank, the second premixing tank and the macromonomer dissolution tank are connected with a metering device, and the metering device is connected to the feed end of the polymerization tank.

[0010] The technical effect of the above improvement is: through the setting of the metering device, the device can further facilitate the control of the feed ratio of the polymerization tank, thereby improving the quality of the finished product.

[0011] As a further improvement of the above scheme, the polymerization tank includes a tank body, a feed port is provided at the upper end of the tank body, a discharge port is provided at one side of the bottom of the tank body, a driving part is provided at the top of the tank body, and an output end of the driving part is connected to a stirring paddle downward into the tank body.

[0012] The technical effect of the above improvement is: through the arrangement of the tank body, feed port, drive unit, stirring paddle and discharge port, the polymerization tank of the device can further facilitate the control of material feeding and discharging as well as stirring and mixing, thereby improving production efficiency.

[0013] As a further improvement of the above solution, an electric heating pipe is arranged around the side wall of the tank body, a cooling pipeline is wound around the side wall of the tank body, and a cooler connected to the cooling pipeline is arranged on one side of the tank body.

[0014] The technical effect of the above improvement is: through the arrangement of electric heating tubes, cooling pipelines and coolers, the device can further facilitate the control of the production temperature of the polymerization tank and improve the quality of the finished product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the connection structure of each device of the utility model.

[0016] Figure 2 It is a schematic diagram of the front cross-sectional structure of the polymerization tank of the utility model.

[0017] In the figure: 1. first premixing tank; 2. second premixing tank; 3. macromonomer dissolution tank; 4. metering device; 5. neutralization tank; 6. polymerization tank; 61. tank body; 62. feed port; 63. drive unit; 64. stirring paddle; 65. electric heating tube; 66. cooling pipeline; 67. discharge port; 68. cooler; 7. adjustment tank; 8. finished product tank. DETAILED DESCRIPTION

[0018] In order to enable those skilled in the art to better understand the technical solution, the technical solution is described in detail below in conjunction with the embodiments. The description in this section is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present utility model.

[0019] Embodiment 1:

[0020] like Figure 1-2As shown, the specific structure of this embodiment is: a production device of a polycarboxylic acid water-reducing agent, including a polymerization tank 6, the feed end of the polymerization tank 6 is connected to the first premixing tank 1, the second premixing tank 2 and the large monomer dissolving tank 3, the polymerization tank 6 is also connected to the neutralization tank 5, the discharge end of the polymerization tank 6 is connected to the adjustment tank 7, the first premixing tank 1, the second premixing tank 2, the large monomer dissolving tank 3 and the neutralization tank 5 are provided with a stirring device, the first premixing tank 1 is provided with a heating device, and the neutralization tank 5 and the adjustment tank 7 are provided with a pH value measuring instrument. The first premixing tank 1, the second premixing tank 2 and the large monomer dissolving tank 3 are connected to a metering device 4, and the metering device 4 is connected to the feed end of the polymerization tank 6. Through the provision of the metering device 4, the device can further facilitate the control of the feed ratio of the polymerization tank 6, thereby improving the quality of the finished product.

[0021] Embodiment 2:

[0022] like Figure 2 As shown, as a preferred embodiment of the above embodiment, the polymerization tank 6 includes a tank body 61, a feed port 62 is provided at the upper end of the tank body 61, a discharge port 67 is provided at one side of the bottom of the tank body 61, and a driving unit 63 is provided at the top of the tank body 61. The driving unit 63 in this embodiment specifically selects a stepping motor, and the output end of the driving unit 63 is connected to a stirring paddle 64 deep into the tank body 61. Through the arrangement of the tank body 61, the feed port 62, the driving unit 63, the stirring paddle 64, and the discharge port 67, the polymerization tank 6 of the device can further facilitate the control of material feeding and discharging and stirring and mixing, thereby improving production efficiency. An electric heating pipe 65 is arranged around the side wall of the tank body 61, a cooling pipeline 66 is wound around the side wall of the tank body 61, and a cooler 68 connected to the cooling pipeline 66 is arranged on one side of the tank body 61. Through the arrangement of the electric heating pipe 65, the cooling pipeline 66, and the cooler 68, the device can further facilitate the control of the production temperature of the polymerization tank 6, thereby improving the quality of the finished product.

[0023] The specific working principle of this utility model:

[0024] When the device is used, firstly, deionized water is loaded into the first premixing tank 1, the second premixing tank 2 and the macromonomer dissolving tank 3, and the macromonomer (such as acrylic acid or methacrylic acid) is put into the macromonomer dissolving tank 3, and dissolved in the macromonomer dissolving tank 3 to form a macromonomer solution. The macromonomer dissolving tank 3 is provided with a heater and an agitator to control the dissolution temperature and speed; small materials (such as a cross-linking agent, a retarder, a stabilizer, etc.) are put into the first premixing tank 1, and dissolved in the first premixing tank 1 to form a material A solution. The first premixing tank 1 is provided with an agitator to ensure uniform dispersion of the materials; the ammonium persulfate is dissolved and put into the second premixing tank 2, and dissolved in the second premixing tank 2 to form a material B solution; the second premixing tank 2 is provided with an agitator to ensure uniform dispersion of the materials.

[0025] The obtained macromonomer solution and A and B material solutions are added to the polymerization tank 6 through the metering device 4 to carry out polymerization reaction to form the mother liquor of polycarboxylic acid water-reducing agent, the driving part 63 is started to drive the stirring paddle 64 to rotate, stir the material in the tank body 61 to accelerate the reaction speed; the electric heating tube 65 is started to heat the material in the tank body 61 to increase the reaction temperature; the cooler 68 is started to cool the material in the tank body 61 through the cooling pipeline 66 to prevent overheating of the reaction. Subsequently, liquid alkali (such as sodium hydroxide or potassium hydroxide) is added to the polymerization tank 6 through the neutralization tank 5 to carry out neutralization reaction, convert the carboxyl group of the polymer chain into carboxylate, and improve the solubility and dispersibility of the polymer. The neutralization tank 5 is equipped with a stirrer and a pH value meter to control the pH value and stirring speed of the neutralization reaction.

[0026] The obtained mother liquor is poured from the polymerization tank 6 into the adjustment tank 7, and the mother liquor is allowed to stand through the adjustment tank 7. After the standing is completed, a certain amount of deionized water is added to adjust the concentration and pH value of the polycarboxylate water-reducing agent to meet the requirements of product quality. A pH value measuring instrument is provided in the adjustment tank 7 to control the pH value during the adjustment process. Finally, after the finished product is obtained, it is loaded from the adjustment tank 7 into the finished product tank 8, and the adjusted polycarboxylate water-reducing agent is stored in the finished product tank 8, waiting for packaging or transportation, completing the whole production process.

[0027] The utility model provides the first premixing tank 1, the second premixing tank 2, the macromonomer dissolving tank 3, the polymerization tank 6, the adjustment tank 7 and other equipment, so that the device does not need to use a reaction kettle when producing polycarboxylate water reducer, but applies multiple equipment to each step, and simultaneously provides a structure adapted to the step in each equipment, so that the material ratio and reaction time in the reaction process can be more conveniently controlled, and the production efficiency and the quality of the finished product can be improved.

[0028] It should be noted that, in this article, the terms "include", "comprises" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Specific examples are used in this article to illustrate the principle and implementation of the technical solution of the utility model. The above examples are only used to help understand the method and core idea of ​​the utility model. The above are only preferred implementations of the utility model. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, for ordinary technicians in this technical field, without departing from the principle of the utility model, several improvements, modifications or changes can be made, and the above technical features can also be combined in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without improvement, should be regarded as the protection scope of the utility model.

Claims

1. A production device for a polycarboxylate water-reducing agent, characterized in that: The invention comprises a polymerization tank (6), wherein a feed end of the polymerization tank (6) is connected to a first premixing tank (1), a second premixing tank (2) and a macromonomer dissolving tank (3), the polymerization tank (6) is also connected to a neutralization tank (5), and a discharge end of the polymerization tank (6) is connected to an adjustment tank (7), a stirring device is arranged in the first premixing tank (1), the second premixing tank (2), the macromonomer dissolving tank (3) and the neutralization tank (5), a heating device is arranged in the first premixing tank (1), and a pH value measuring instrument is arranged in the neutralization tank (5) and the adjustment tank (7).

2. The production device of a polycarboxylate water-reducing agent according to claim 1, characterized in that: The first premixing tank (1), the second premixing tank (2) and the macromonomer dissolution tank (3) are connected to a metering device (4), and the metering device (4) is connected to the feed end of the polymerization tank (6).

3. The production device of a polycarboxylate water reducer according to claim 1, characterized in that: The polymerization tank (6) comprises a tank body (61), wherein a feed port (62) is arranged at the upper end of the tank body (61), a discharge port (67) is arranged at one side of the bottom of the tank body (61), a driving part (63) is arranged at the top of the tank body (61), and an output end of the driving part (63) extends downward into the tank body (61) and is connected to a stirring paddle (64).

4. The production device of a polycarboxylate water-reducing agent according to claim 3, characterized in that: An electric heating pipe (65) is arranged around the side wall of the tank body (61), a cooling pipeline (66) is wound around the side wall of the tank body (61), and a cooler (68) connected to the cooling pipeline (66) is arranged on one side of the tank body (61).

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