Normal-temperature device for preparing polycarboxylic acid high-performance water reducing agent

Abstract

The utility model discloses a normal-temperature device for preparing a polycarboxylic acid high-performance water reducing agent, which relates to the technical field of water reducing agents and comprises a reaction kettle tank body, a tank cover is arranged at the top of the reaction kettle tank body, and a booster pump is fixedly mounted on the right side of the reaction kettle tank body. A plurality of supporting legs are fixedly installed at the bottom of the reaction kettle tank body in an annular array mode, a servo motor is fixedly installed at the center of the top of the tank cover, a feeding opening penetrating through the bottom of the tank cover is fixedly connected to the right side of the top of the tank cover, and a driving cabin is formed in the tank cover; and an output shaft of the servo motor penetrates through the bottom of the tank cover and is fixedly provided with a stirring rod 1. The servo motor, the first stirring rod, the first gear, the driven rod, the second stirring rods, the first stirring rod and the second gear are matched with one another, so that the two second stirring rods can be driven to rotate only by the independent servo motor, the first stirring rod is driven to perform stirring and mixing reaction on raw materials, and certain cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to water reducing agent technical field, concretely relates to a normal temperature device for preparing polycarboxylate high performance water reducing agent. BACKGROUND

[0002] Polycarboxylate water reducing agent is a kind of dispersant for dispersing cement widely used in concrete, gradually replaces some traditional water reducing agent due to its advantages such as less adding amount, higher water-reducing rate, good slump retention, lower concrete shrinkage, adjustable molecular structure and no formaldehyde in production process, due to fierce market competition, the process of traditional method is complex, energy consumption is high, more and more does not meet market demand, the polycarboxylate high performance water reducing agent mother liquor of existing technology uses the HPEG monomer with higher polymerization activity and industrial acrylic acid as the polymerization key raw material, utilizes H2O2 and ascorbic acid (VC) Composition oxidation-reduction system initiator initiates polymerization, the reaction temperature is adjusted to normal temperature polymerization from the original process 60 ℃±3 ℃, and micro amount of ferrous sulfate is introduced in the reaction system simultaneously to assist heating.

[0003] Chinese patent document CN206597532U discloses a polycarboxylate water reducing agent mother liquor normal temperature synthesis reaction kettle, relating to concrete water reducing agent production equipment technical field, it includes the kettle body of reaction kettle shell, kettle body baffle, feeding hopper, secondary stirring discharge valve, a pair of stirring devices, booster pump, discharge device and vacuum glass observation window, the top of reaction kettle shell is equipped with feeding port and a pair of shaft through hole, lower part is equipped with booster port and observation window mounting port, bottom is equipped with discharge port, the kettle body baffle is funnel-shaped;The utility model discloses the design of double-layer stirring cavity, can complete the process requirement of stirring under different pressure environment, fully utilizes the self-heat release characteristics of the chemical reaction, uses more reasonable proportion and process, without the cumbersome process of heating and cooling, under the normal temperature condition of more concise and convenient, the high-performance mother liquor that can satisfy subway, light rail, high-speed rail, highway and other special concrete admixtures is synthesized, not only saves the cost but also improved production efficiency.

[0004] Although the raw materials can be stirred and reacted by the stirring shaft in the above-mentioned document, the cost of the whole device is also increased due to the fact that the motor reducer assembly driving the stirring shaft has two and controls two stirring shafts respectively, and the mixing reaction speed of the raw materials is not high due to the single stirring direction of the two stirring shafts, thereby affecting the preparation efficiency. UTILITY MODEL CONTENTS

[0005] The utility model provides a normal temperature device for preparing polycarboxylate high performance water reducing agent to solve the problems in the above-mentioned background art.

[0006] To solve the above technical problems, the utility model adopts the technical scheme of:

[0007] A normal temperature device for preparing polycarboxylic acid high performance water reducing agent, including the reaction kettle jar body, the top of reaction kettle jar body is provided with the jar cover, the right side of reaction kettle jar body is fixedly installed with booster pump, the bottom annular array of reaction kettle jar body is fixedly installed with a plurality of support legs, the top center of jar cover is fixedly installed with servo motor, the top right side of jar cover is fixedly connected with the feeding opening through its bottom, the jar cover is equipped with drive cabin, the output shaft of servo motor penetrates to the bottom of jar cover and is fixedly installed with stirring rod one, the output shaft outer wall of servo motor is fixedly installed with gear one, gear one is located in the inner chamber of drive cabin, the inner wall of drive cabin top side is movably installed with driven rod, the outer wall of two driven rods is fixedly installed with gear two, two gear two are engaged with gear one, the bottom of two driven rods penetrates to the bottom of jar cover and is fixedly installed with stirring rod two.

[0008] The further improvement of the utility model technical scheme lies in that: the inner wall of the reaction kettle jar body is fixedly installed with a partition plate, the upper part of the partition plate is an upper stirring cavity, the lower part of the partition plate is a lower stirring cavity, the bottom ends of the two stirring rods two penetrate through the partition plate into the inner cavity of the lower stirring cavity, and the outer walls of the two stirring rods two are fixedly installed with a plurality of stirring rods one on the left and right sides.

[0009] The further improvement of the utility model technical scheme lies in that: the left side of the reaction kettle jar body is fixedly connected with a U-shaped downcomer, the right end of the upper horizontal part of the U-shaped downcomer is communicated with the upper stirring cavity of the reaction kettle jar body, the right end of the lower horizontal part of the U-shaped downcomer is communicated with the lower stirring cavity of the reaction kettle jar body, and the vertical part of the U-shaped downcomer is provided with a discharge valve.

[0010] The further improvement of the utility model technical scheme lies in that: the bottom end of the stirring rod one penetrates to the bottom of the partition plate, the outer wall of the stirring rod one is provided with a direction changing stirring mechanism on the upper and lower sides, the two direction changing stirring mechanisms are respectively located on the upper and lower sides of the partition plate, and the output end of the booster pump is located below the partition plate.

[0011] The further improvement of the utility model technical scheme lies in that: the two direction changing stirring mechanisms each include a worm and a rotating rod, the two worms are respectively located on the left sides of the two rotating rods, the front and rear ends of the two rotating rods are movably connected with the inner walls of the front and rear sides of the reaction kettle jar body, the outer walls of the two rotating rods are fixedly installed with worm gears in the middle parts, the two worm gears are respectively in transmission connection with the two worms, a plurality of stirring rods two are fixedly installed on the upper and lower sides of the side, away from the worm gears, of the outer walls of the two rotating rods, and the distance between the stirring rod two closest to the worm gear and the worm gear is greater than the length of the stirring rod one.

[0012] A further improvement of this utility model is that a discharge pump is fixedly installed at the bottom center of the reactor body, the input end of the discharge pump is connected to the bottom of the inner cavity of the reactor body, and a discharge pipe is fixedly connected to the left output end of the discharge pump.

[0013] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0014] 1. This utility model provides a room temperature device for preparing polycarboxylate high-performance water-reducing agent. Through the cooperation between the servo motor, stirring rod one, gear one, driven rod, stirring rod two, stirring rod one, and gear two, the two stirring rods two can be driven to rotate by the independent servo motor, and the raw materials of stirring rod one can be stirred and mixed to react, thus saving certain costs.

[0015] 2. This utility model provides a room temperature device for preparing polycarboxylate high-performance water-reducing agent. Through the cooperation between the stirring rod, the reversible stirring mechanism, and the partition plate, the raw materials on both sides of the partition plate inside the reaction vessel can be stirred and mixed by the stirring rod while being stirred in a different direction by the reversible stirring mechanism. This improves the stirring and mixing reaction speed of the polycarboxylate high-performance water-reducing agent raw materials, thereby improving the preparation efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional schematic diagram of the can lid structure of this utility model;

[0018] Figure 3 This is a schematic cross-sectional view of the reaction vessel body of this utility model.

[0019] Figure 4 This is a schematic diagram of the reversible stirring mechanism of this utility model.

[0020] Figure 5 This is a bottom view of the bottom of the reaction vessel of this utility model.

[0021] In the diagram: 1. Reactor body; 11. Divider plate; 12. Reversing stirring mechanism; 121. Worm gear; 122. Rotating rod; 123. Worm wheel; 124. Stirring rod II; 13. U-shaped discharge pipe; 131. Discharge valve; 14. Discharge pump; 141. Discharge pipe; 2. Tank cover; 21. Servo motor; 211. Stirring rod I; 212. Gear I; 22. Feed port; 23. Drive chamber; 24. Driven rod; 241. Stirring rod II; 2411. Stirring rod I; 242. Gear II; 3. Booster pump; 4. Support leg. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0023] As shown in Figure 1 , Figure 2 The utility model provides a normal temperature device for preparing polycarboxylic high performance water reducing agent, including the reaction kettle jar body 1, the top of reaction kettle jar body 1 is provided with the jar cover 2, the right side of reaction kettle jar body 1 is fixedly installed with booster pump 3, the bottom annular array of reaction kettle jar body 1 is fixedly installed with a plurality of support legs 4, the top center of jar cover 2 is fixedly installed with servo motor 21, the top right side of jar cover 2 is fixedly connected with the filling opening 22 that penetrates its bottom, jar cover 2 is seted up with drive cabin 23, the output shaft of servo motor 21 penetrates to the bottom of jar cover 2 and is fixedly installed with stirring rod one 211, the output shaft outer wall of servo motor 21 is fixedly installed with gear one 212, gear one 212 is located in the inner chamber of drive cabin 23, the inner wall top of drive cabin 23 both sides are movably installed with driven rod 24, the outer wall of two driven rods 24 is fixedly installed with gear two 242, two gear two 242 all are engaged with gear one 212, the bottom end of two driven rods 24 all penetrates to the bottom of jar cover 2 and is fixedly installed with stirring rod two 241;

[0024] By opening filling opening 22, the raw materials for normal temperature preparation of polycarboxylic high performance water reducing agent can be injected into the inner cavity of reaction kettle jar body 1, and the raw materials will accumulate in the upper stirring cavity on the top of the partition plate 11 after injection. At this time, the stirring rod one 211 and the gear one 212 can be driven to rotate by starting the servo motor 21. The two gear two 242 can be driven to rotate by engaging the gear one 212 in the inner cavity of the drive cabin 23 with the two gear two 242. Thus, the two driven rods 24 and the stirring rod two 241 at the bottom end of the driven rod 24 are driven to rotate. The raw materials above the partition plate 11 are subjected to primary stirring reaction by the stirring rod one 2411.

[0025] As shown in Figure 3As shown, the inner wall of the reaction kettle body 1 is fixedly installed with a partition plate 11, the upper part of the partition plate 11 is an upper stirring cavity, the lower part of the partition plate 11 is a lower stirring cavity, the bottom ends of the two stirring rods two 241 penetrate through the partition plate 11 to the inner cavity of the lower stirring cavity, and the outer walls of the two stirring rods two 241 are fixedly installed with a plurality of stirring rods one 2411 on the left and right sides, the left side of the reaction kettle body 1 is fixedly connected with a U-shaped discharge pipe 13, the right end of the upper horizontal part of the U-shaped discharge pipe 13 penetrates through the upper stirring cavity of the reaction kettle body 1, the right end of the lower horizontal part of the U-shaped discharge pipe 13 penetrates through the lower stirring cavity of the reaction kettle body 1, the vertical part of the U-shaped discharge pipe 13 is provided with a discharge valve 131, the bottom end of the stirring rod one 211 penetrates to the bottom of the partition plate 11, the outer wall of the stirring rod one 211 is provided with a direction-changing stirring mechanism 12 on the upper and lower sides, the two direction-changing stirring mechanisms 12 are located on the upper and lower sides of the partition plate 11, and the output end of the booster pump 3 is located below the partition plate 11;

[0026] When the stirring time of the raw materials in the upper stirring cavity above the partition plate 11 reaches, the discharge valve 131 can be opened to make the raw materials flow into the lower stirring cavity below the partition plate 11 through the U-shaped discharge pipe 13, then the discharge valve 131 is closed, and the booster pump 3 is used to pressurize the lower stirring cavity, so that the reactants are subjected to higher pressure, which helps to break the thermodynamic equilibrium of the reaction, promotes the reaction to proceed in the direction of product formation, thereby improving the reaction rate and yield, while reducing the activation energy required for the reaction, so that the reaction can also be carried out at a lower temperature. This not only saves energy, but also reduces the generation of by-products.

[0027] As shown in Figure 4 , Figure 5 two direction-changing stirring mechanisms 12 each include a worm 121 and a rotating rod 122, the two worms 121 are located on the left sides of the two rotating rods 122, the front and rear ends of the two rotating rods 122 are movably connected with the inner walls of the reaction kettle body 1 on the front and rear sides, the outer walls of the two rotating rods 122 are fixedly installed with a worm wheel 123 at the middle part, the two worm wheels 123 are drivingly connected with the two worms 121, a plurality of stirring rods two 124 are fixedly installed on the upper and lower sides of the side of the outer wall of the two rotating rods 122 away from the worm wheel 123, and the distance between the stirring rod two 124 closest to the worm wheel 123 and the worm wheel 123 is greater than the length of the stirring rod one 2411, a discharge pump 14 is fixedly installed at the bottom center of the reaction kettle body 1, the input end of the discharge pump 14 penetrates through the inner cavity bottom of the reaction kettle body 1, and the left output end of the discharge pump 14 is fixedly connected with a discharge pipe 141;

[0028] The stirring rod one 211 can drive the worm 121 fixed on the outer wall thereof above the partition plate 11 and the worm 121 below the partition plate 11 to rotate synchronously while driving the stirring rod two 241 to rotate, and the transmission connection between the worm 121 and the worm wheel 123 can drive the two rotating rods 122 located on the upper and lower sides of the partition plate 11 to rotate, so that the stirring rods two 124 on the outer wall of the rotating rod 122 on the front and rear sides rotate in different directions with the stirring rod one 241 11, thereby stirring the raw materials, and finally when the reaction is completed, the discharge pump 14 can be opened to discharge the reactants in the lower stirring cavity below the partition plate 11 through the discharge pipe 141, thereby completing the preparation of the polycarboxylic acid high-performance water reducing agent at room temperature.

[0029] The working principle of the device for preparing the polycarboxylic acid high-performance water reducing agent at room temperature will be described in detail below.

[0030] As Figures 1-5As shown, by opening the feeding opening 22, the raw materials for preparing the polycarboxylic acid high performance water reducing agent at room temperature can be injected into the inner cavity of the reaction kettle tank 1, and after injection, the raw materials will accumulate in the upper stirring cavity on the top of the partition plate 11, at this time, by starting the servo motor 21, the stirring rod one 211 and the gear one 212 can be driven to rotate, cooperating with the meshing of the gear one 212 in the driving cabin 23 and the two gear twos 242, the two gear twos 242 can be driven to rotate, thereby driving the two driven rods 24 and the stirring rod two 241 at the bottom end of the driven rod 24 to rotate, cooperating with the stirring rod one 2411 to primary stir the raw materials above the partition plate 11, and the stirring rod one 211 can also drive the worm 121 above the partition plate 11 and the worm 121 below the partition plate 11 fixed on the outer wall thereof to rotate synchronously while driving the stirring rod two 241 to rotate, by the transmission connection of the worm 121 and the worm gear 123, the two rotating rods 122 respectively located on the upper and lower sides of the partition plate 11 can be driven to rotate, thereby enabling the stirring rod two 124 on the outer wall of the rotating rod 122 to rotate in different angles with the stirring rod one 2411 to stir the raw materials, when the stirring time of the raw materials in the upper stirring cavity above the partition plate 11 is up, by opening the discharge valve 131, the raw materials can flow into the lower stirring cavity below the partition plate 11 through the U-shaped discharge pipe 13, then the discharge valve 131 is closed, and the lower stirring cavity is pressurized by using the booster pump 3, so that the reactants are subjected to higher pressure, which helps to break the thermodynamic equilibrium of the reaction, promotes the reaction to proceed in the direction of product formation, thereby improving the reaction rate and yield, and at the same time, the activation energy required for the reaction can be reduced, so that the reaction can also be carried out at a lower temperature, which not only saves energy, but also reduces the generation of by-products, and cooperating with the stirring rod one 2411 on the outer wall of the stirring rod two 241 below the partition plate 11 and the stirring rod two 124 on the outer wall of the rotating rod 122, the raw materials can be fully stirred again in the pressurized environment, and finally when the reaction is completed, the discharge pump 14 is opened, so that the reactants in the lower stirring cavity below the partition plate 11 are discharged through the discharge pipe 141, and the preparation of the polycarboxylic acid high performance water reducing agent at room temperature is completed.

[0031] The above has made a detailed description of the present application, but some modifications or improvements can be made on the basis of the present application, which is obvious to those skilled in the art. Therefore, the modifications or improvements without departing from the spirit of the present application are within the scope of the present application.

Claims

1. A room-temperature apparatus for preparing polycarboxylate high-performance water-reducing agents, comprising a reaction vessel (1), a lid (2) provided on the top of the reaction vessel (1), a booster pump (3) fixedly installed on the right side of the reaction vessel (1), and a plurality of support legs (4) fixedly installed in a circular array at the bottom of the reaction vessel (1), characterized in that: The top center of the tank cover (2) is fixedly installed with a servo motor (21), the top right side of the tank cover (2) is fixedly connected with a feeding port (22) penetrating through the bottom, the tank cover (2) is provided with a drive cabin (23), the output shaft of the servo motor (21) penetrates to the bottom of the tank cover (2) and is fixedly installed with a stirring rod one (211), the outer wall of the output shaft of the servo motor (21) is fixedly installed with a gear one (212), the gear one (212) is located in the inner cavity of the drive cabin (23), the inner wall of the drive cabin (23) is movably installed with a driven rod (24) on the top of the two sides, the outer wall of the two driven rods (24) is fixedly installed with a gear two (242), the two gear twos (242) are engaged with the gear one (212), the bottom ends of the two driven rods (24) penetrate to the bottom of the tank cover (2) and are fixedly installed with a stirring rod two (241). 2.The normal-temperature device for preparing polycarboxylic high-performance water-reducing agent according to claim 1, characterized in that: The inner wall of the reaction kettle body (1) is fixedly installed with a partition plate (11), the upper side of the partition plate (11) is an upper stirring cavity, the lower side of the partition plate (11) is a lower stirring cavity, the bottom ends of the two stirring rod twos (241) penetrate to the inner cavity of the lower stirring cavity through the partition plate (11), and the outer walls of the two stirring rod twos (241) are fixedly installed with a plurality of stirring rods one (2411) on the left and right sides. 3.The normal-temperature device for preparing polycarboxylic high-performance water-reducing agent according to claim 2, characterized in that: The left side of the reaction kettle body (1) is fixedly connected with a U-shaped downcomer (13), the right end of the upper horizontal part of the U-shaped downcomer (13) penetrates the upper stirring cavity of the reaction kettle body (1), the right end of the lower horizontal part of the U-shaped downcomer (13) penetrates the lower stirring cavity of the reaction kettle body (1), and the vertical part of the U-shaped downcomer (13) is provided with a discharge valve (131). 4.The normal-temperature device for preparing polycarboxylic high-performance water-reducing agent according to claim 1, characterized in that: The bottom end of the stirring rod one (211) penetrates to the bottom of the partition plate (11), the outer wall of the stirring rod one (211) is provided with a direction changing stirring mechanism (12) on the upper and lower sides, the two direction changing stirring mechanisms (12) are respectively located on the upper and lower sides of the partition plate (11), and the output end of the booster pump (3) is located below the partition plate (11). 5.The normal-temperature device for preparing polycarboxylic high-performance water-reducing agent according to claim 4, characterized in that: The two direction changing stirring mechanisms (12) each include a worm (121) and a rotating rod (122), the two worms (121) are respectively located on the left sides of the two rotating rods (122), the front and rear ends of the two rotating rods (122) are movably connected with the inner walls of the front and rear sides of the reaction kettle body (1), the outer walls of the two rotating rods (122) are fixedly installed with a worm wheel (123) at the middle parts, the two worm wheels (123) are drivingly connected with the two worms (121), a plurality of stirring rod twos (124) are fixedly installed on the upper and lower sides of one side of the outer wall of each of the two rotating rods (122) away from the worm wheel (123), and the distance between the stirring rod two (124) closest to the worm wheel (123) and the worm wheel (123) is greater than the length of the stirring rod one (2411). 6.The normal-temperature device for preparing polycarboxylic high-performance water-reducing agent according to claim 1, characterized in that: The bottom of the reactor tank body (1) is fixedly provided with a discharge pump (14), the input end of the discharge pump (14) is communicated with the bottom of the inner cavity of the reactor tank body (1), and the left output end of the discharge pump (14) is fixedly connected with a discharge pipe (141).

Images