阅读说明：本技术 一种高抗泥型混凝土减水剂的制备方法 (Preparation method of high-mud-resistance concrete water reducer ) 是由 不公告发明人 于 2020-06-17 设计创作，主要内容包括：本发明属于混凝土外加剂技术领域,具体的说是一种高抗泥型混凝土减水剂的制备方法,包括壳体、储液罐和增压阀；所述壳体为圆柱形空腔结构；所述壳体上表面固连有对称设计的储液罐；所述储液罐内部均中空设计；所述壳体上表面固连有增压阀；所述增压阀内部开设有第一空腔；所述增压阀一侧固连有电动机；所述电动机输出轴贯穿增压阀并延伸至第一空腔内设计；所述电动机输出轴位于第一空腔内一端套接有多个凸轮；所述第一空腔位于凸轮下方滑动连接有密封板；本发明通过使用高速气流将两种密度不同的不相容液体进行高速破碎成为微细的小液滴,从而有效地扩大接触面积,再配合高温高压有效地对聚合反应产生促进作用,有效的缩短反应时间。(The invention belongs to the technical field of concrete admixtures, and particularly relates to a preparation method of a high-mud-resistance concrete water reducing agent, which comprises a shell, a liquid storage tank and a pressure increasing valve; the shell is of a cylindrical cavity structure; the upper surface of the shell is fixedly connected with a symmetrically designed liquid storage tank; the inner parts of the liquid storage tanks are designed to be hollow; the upper surface of the shell is fixedly connected with a pressure increasing valve; a first cavity is formed in the pressure increasing valve; one side of the pressure increasing valve is fixedly connected with a motor; the output shaft of the motor penetrates through the pressure increasing valve and extends into the first cavity; one end of the output shaft of the motor, which is positioned in the first cavity, is sleeved with a plurality of cams; the first cavity is positioned below the cam and is connected with a sealing plate in a sliding manner; the invention uses high-speed airflow to crush two incompatible liquids with different densities into fine droplets at high speed, thereby effectively enlarging the contact area, and then effectively promoting the polymerization reaction by matching with high temperature and high pressure, thereby effectively shortening the reaction time.)

1. A preparation method of a high-mud-resistance concrete water reducing agent is characterized by comprising the following steps: the preparation method of the high-mud-resistance concrete water reducer comprises the following steps:

s1: adding 50 parts of absolute ethyl alcohol into a stirring kettle, controlling the temperature of the reaction kettle to be uniformly raised to 70 ℃, sequentially adding trimethylamine and 1, 3-dibromopropane into the stirring kettle according to the ratio of 2:1 after the temperature is raised, controlling the rotation speed of a stirring shaft in the stirring kettle to be 360-400r/min, and reacting for 3-4h to obtain a light yellow viscous modifier;

s2: dissolving a polyoxyethylene allyl ester macromonomer in an ethanol solution according to the volume ratio of 1:5, adding an ammonium persulfate aqueous solution initiator into the polyoxyethylene allyl ester macromonomer solution, uniformly stirring, and uniformly blending the mixture with the modifier prepared in S1 to obtain a blending solution for later use;

s3: respectively dissolving acrylic acid and sodium methallyl sulfonate in a deionized water solution to prepare a 20% aqueous solution, respectively introducing the blended solution and the acrylic acid-sodium methallyl sulfonate mixed solution into a polymerization reactor, respectively impacting the solution by high-pressure airflow to form liquid mist, and continuously reacting in a high-temperature high-pressure environment;

s4: neutralizing the mixed solution obtained after the polymerization reaction by using a sodium hydroxide aqueous solution until the pH value is 6-7, then carrying out reduced pressure distillation, removing most of water in the mixed solution to obtain the high-mud-resistance concrete water reducing agent, sealing and storing the high-mud-resistance concrete water reducing agent, and diluting the high-mud-resistance concrete water reducing agent with water when in use;

wherein the polymerization reactor in S3 comprises a shell (1), a liquid storage tank (11) and a pressure increasing valve (2); the shell (1) is of a cylindrical cavity structure; the upper surface of the shell (1) is fixedly connected with symmetrically designed liquid storage tanks (11); the inner parts of the liquid storage tanks (11) are designed to be hollow; the upper surface of the shell (1) is fixedly connected with a booster valve (2); a first cavity is formed in the pressure increasing valve (2); one side of the pressure increasing valve (2) is fixedly connected with a motor (21); the output shaft of the motor (21) penetrates through the pressure increasing valve (2) and extends into the first cavity; a plurality of cams (22) are sleeved at one end, located in the first cavity, of the output shaft of the motor (21); a sealing plate (23) is connected to the first cavity below the cam (22) in a sliding manner; the sealing plate (23) is provided with air holes (24) which are uniformly distributed; one side of the air hole (24) far away from the cam (22) is fixedly connected with a rubber tube; the cross section of the rubber pipe is designed in a V shape; a pressure-bearing column (3) is fixedly connected inside the shell (1); a first through groove is formed in the pressure bearing column (3); the first through groove penetrates through the pressure bearing column (3) and extends into the first cavity; one side, close to the first through groove, of the sealing plate (23) is fixedly connected with a supporting column (31); the supporting column (31) extends into the first through groove; one end of the support column (31) positioned in the first through groove is fixedly connected with a strong spring (32), and the strong spring (32) is fixedly connected with one side of the first through groove, which is far away from the sealing plate (23); a first sliding groove is formed in the cavity of the shell (1) of the pressure-bearing column (3); the pressure bearing column (3) is provided with a heating plate (4) through a first chute; a second cavity is formed in the heating plate (4); the heating plate (4) is designed in an arc shape; spraying pipes (41) which are uniformly distributed are arranged on one side, close to the booster valve (2), of the heating plate (4); a second sliding groove is formed in the spraying pipe (41); the second sliding chute is in a cross-shaped design; a spray head (42) is arranged in the second chute; the spray head (42) is designed with a through hole; the first through groove is connected with a through hole of the spray head (42) through a conduit; the liquid storage tank (11) is communicated with the second cavity through a guide pipe; the bottom of the shell (1) is provided with an electromagnetic coil (5); the electromagnetic coil (5) is used for uniformly heating the heating plate (4) through an alternating magnetic field which changes inside.

2. The preparation method of the high mud resistance type concrete water reducing agent according to claim 1, characterized in that: the spraying pipes (41) are all obliquely arranged and the oblique directions all face the circumferential direction of the heating plate (4).

3. The preparation method of the high mud resistance type concrete water reducing agent according to claim 1, characterized in that: one end of the support rod positioned in the first through groove is fixedly connected with a sliding plate (6); the side wall of the sliding plate (6) is fixedly connected with a rubber layer; the sliding plate (6) and the side wall of the first through groove are sealed through a rubber layer; the bottom of the pressure bearing column (3) is provided with a via hole (61); the through hole (61) is used for conducting the inner cavity of the shell (1) and the first through groove; the through holes (61) are in a trapezoidal design, and the opening surface of the through holes (61) in the first through groove is larger than the opening surface of the through holes (61) in the inner cavity of the shell (1).

4. The preparation method of the high mud resistance type concrete water reducing agent according to claim 3, characterized in that: the through holes (61) are uniformly distributed along the circumferential direction of the pressure bearing column (3); the vertical heights of the via holes (61) are different; a floating ring (62) is sleeved on the pressure bearing column (3); the floating ring (62) is used for plugging the through hole (61) above the liquid level.

5. The preparation method of the high mud resistance type concrete water reducing agent according to claim 1, characterized in that: the bottom of the shell (1) is rotatably connected with a plurality of rotating wheels (63) through guide pipes; the rotating wheels (63) correspond to the through holes (61) one by one.

6. The preparation method of the high mud resistance type concrete water reducing agent according to claim 1, characterized in that: the interior of the first through groove is fixedly connected with a squeezing ring (64); the upper surface of the sliding plate (6) is fixedly connected with a squeezing bag (65); two ends of the extrusion bag (65) are provided with one-way catheters; the one-way catheter respectively leads the squeezing bag (65) to be communicated with the inner cavity of the shell (1) and the second cavity.