Catalytic device for preparing water reducing agent monomer and use method

Abstract

The invention discloses a catalytic device for preparing a water reducing agent monomer and a method for using the catalytic device, comprising a kettle body, wherein the kettle body is connected to a kettle cover via a flange; and a temperature control premixer is installed on the kettle body. The beneficial effect of the invention is that a plurality of temperature control premixers are installed in a circular array so that the catalyst can be uniformly and efficiently dripped into the interior of the reactor and premixed with raw materials, thereby significantly improving the mixing efficiency and uniformity. The temperature control premixer not only realizes the uniform dripping of the catalyst, but also has a temperature control function, and can effectively prevent the local temperature from being too high due to the reaction of the catalyst and the raw materials, thereby avoiding the decrease in product purity or the occurrence of side reactions, ensuring the quality and production efficiency of the product, and reducing the production cost. By adjusting the rotation speed of the agitator, the dripping speed and the addition amount of the catalyst can be flexibly adjusted, so that the catalytic process is more controllable, and the flexibility and adaptability of the equipment are enhanced.

Description

Technical Field

[0001] The invention relates to the technical field of water reducing agent monomer preparation, in particular to a catalytic device for water reducing agent monomer preparation and a use method thereof. Background Art

[0002] Water-reducing agent monomers are generally organic polymer compounds. Because their monomer molecules contain hydroxyl (OH) structures, they are also called hydroxyl monomers. According to the different monomer structures, water-reducing agent monomers can be divided into three types: anionic, cationic and non-ionic. Among them, polycarboxylate high-performance water-reducing agent is a variety of high-molecular organic compounds with polycarboxylate as the main body, which is generated by graft copolymerization. It has extremely strong water-reducing performance and is a green and environmentally friendly concrete admixture with the highest technology in the world today.

[0003] In the large-scale catalytic preparation process of polycarboxylic acid water-reducing agent monomer, under the action of the catalyst, the chemical bonds between the reactant molecules are broken and recombined into new chemical bonds, so a large amount of heat is generated. If this heat cannot be effectively controlled, it may cause the temperature of the reaction system to be too high, thereby triggering a series of side reactions, such as the dimerization reaction of acrylic acid or the reaction of generating polyethylene glycol diacrylate. These side reactions will seriously affect the purity and quality of the final product. Therefore, in the catalytic preparation process of polycarboxylic acid water-reducing agent monomer, the production method of dripping catalyst is usually adopted. The existing technologies involved are as follows;

[0004] 1. A carboxylic acid water reducer production equipment with a publication number of CN203333550U, which discloses an acrylic acid storage tank, a catalyst storage tank, a softened water storage tank, an acrylic acid transfer tank, a catalyst transfer tank, an oxidant dropping tank, an acrylic acid dropping tank, a catalyst dropping tank, a stirring tank, a reactor, a mother liquid storage tank, a finished product storage tank, a valve and a delivery pump; wherein, starting from the acrylic acid storage tank, passing through the acrylic acid transfer tank, and mixing with the softened water from the softened water storage tank in the stirring tank, the acrylic acid drops into the acrylic acid dropping tank, and is dripped from the acrylic acid dropping tank into the reactor to participate in the synthesis reaction of the water reducer; the catalyst starts from the catalyst storage tank, passes through the catalyst transfer tank, and mixes with the softened water from the softened water storage tank in the stirring tank, and then enters the catalyst dropping tank, and is dripped from the catalyst dropping tank into the reactor to participate in the synthesis reaction of the water reducer;

[0005] 2. A catalyst adding device with publication number CN206868186U, which discloses a catalyst storage tank, a catalyst outlet is provided at the bottom of the catalyst storage tank, and a first catalyst pipeline is connected to the catalyst outlet; a buffer tank, the buffer tank is connected to the first catalyst pipeline, a second catalyst pipeline is externally connected to the buffer tank, and the second catalyst pipeline is connected to the reactor; a glass sight glass, the glass sight glass is installed on the first catalyst pipeline; and an overflow balance pipe, one end of the overflow balance pipe is connected to the catalyst storage tank, and the other end is connected to the buffer tank;

[0006] In the above-mentioned prior art, the catalyst is added to the reaction equipment through a single introduction channel, which is not convenient for adjusting the amount and speed of the catalyst, and has poor flexibility. In addition, when the catalyst is mixed with the reactants in the reactor, it does not have the function of temperature control, which will cause the fusion site of the catalyst and the reactants to have a higher temperature, and the temperature of this area cannot be timely and effectively controlled, which may not only cause the local temperature of the reaction system to be too high, but also accelerate the occurrence of side reactions, such as the dimerization of acrylic acid or the formation of polyethylene glycol diacrylate, affecting the purity and quality of the product, reducing production efficiency, and leading to increased production costs. In view of this, in-depth research was conducted on the above-mentioned problems, and thus this case was created. Summary of the invention

[0007] The purpose of the present invention is to solve the above-mentioned problems. A catalytic device for preparing a water reducer monomer and a method for using the same are designed. The problems in the prior art that the catalyst is added to the reaction device through a single introduction channel, which makes it inconvenient to adjust the amount and speed of the catalyst, and has poor flexibility. When the catalyst is mixed with the reactants in the reactor, the catalyst does not have a temperature control function, which causes the fusion portion of the catalyst and the reactants to have a high temperature, and the temperature of the region cannot be effectively controlled in a timely manner. This may not only cause the local temperature of the reaction system to be too high, but may also accelerate the occurrence of side reactions, such as the dimerization of acrylic acid or the formation of polyethylene glycol diacrylate, affecting the purity and quality of the product, reducing production efficiency, and increasing production costs.

[0008] The technical solution of the present invention to achieve the above-mentioned purpose is: a catalytic device for preparing a water reducing agent monomer, comprising a kettle body, and a kettle cover is connected to the kettle body through a flange;

[0009] The kettle body is provided with a temperature control premixer, which is in a plurality and is installed on the kettle body in a circular array; the kettle cover is provided with a drive connector, which is in a plurality and is installed one-to-one with the temperature control premixer; the kettle cover is also provided with a stirrer, which is connected to the drive connector;

[0010] The temperature-controlled premixer includes a catalytic dripping machine and a water tank, the inner wall of the water tank is provided with thermal insulation cotton, the catalytic dripping machine is installed on the side wall of the kettle body, the catalytic dripping machine includes a catalyst outlet pipe, the water tank is installed on the inner wall of the kettle body, a premixing barrel is inserted on the water tank, the cross-sectional shape of the premixing barrel is a rectangular structure, a two-way valve is installed on the inner wall of the premixing barrel and located inside the water tank, a bottom through pipe is inserted on the bottom side wall of the premixing barrel, a top through pipe is inserted on the top side wall of the premixing barrel, the catalyst outlet pipe is inserted on the kettle body and the side wall of the premixing barrel, and the catalyst outlet pipe is located above the top through pipe, and a water inlet pipe and a water outlet pipe are penetrated on the water tank and the kettle body;

[0011] The driving connector includes a pumping machine and a dripping power machine. The pumping machine is installed on the kettle cover and movably inserted in the premixing cylinder. The dripping power machine is connected to the pumping machine, and the dripping power machine is installed on the catalytic dripping machine.

[0012] Preferably, the two-way valve includes a return seat, which is installed on the inner wall of the premixing cylinder and located inside the water tank, the upper wall of the return seat is embedded with a return cylinder, and the upper wall of the return cylinder is movably inserted with a lifting ring frame, the lifting ring frame is located at one end inside the return cylinder and is installed with an adjusting plug ring, the adjusting plug ring is movably fitted on the inner wall of the return cylinder, a suction pipe is inserted on the side wall of the lower end of the return cylinder, the suction pipe runs through the side wall of the premixing cylinder, a two-way water pump is installed on one end of the suction pipe, the lifting ring frame is located at one end outside the return cylinder and is installed with a plurality of dumbbell-shaped guide rods, the dumbbell-shaped guide rods are movably sleeved with a first sealing cover, and the first sealing cover is movably fitted on the upper wall of the return seat.

[0013] Preferably, the pumping machine includes a support frame, which is installed on the upper wall of the kettle cover, and a limit plate is installed on the support frame, on which a drive connector is movably inserted, and a longitudinal screw is movably inserted on the drive connector through a thread, and the longitudinal screw movably passes through the kettle cover and the support frame, and a movable plug assembly is installed at one end of the longitudinal screw, and the movable plug assembly is movably fitted on the inner wall of the premixing barrel, and a cross limit guide rod is installed on the lower wall of the support frame, and the longitudinal screw is movably sleeved on the cross limit guide rod.

[0014] Preferably, the drive connector comprises a longitudinal limiting segment, the longitudinal limiting segment is movably inserted on the limiting plate, a cylindrical gear segment is arranged at the upper end of the longitudinal limiting segment, and a bevel gear segment is arranged at the upper end of the cylindrical gear segment.

[0015] Preferably, the movable plug assembly includes a plurality of cylindrical guide rods, the cylindrical guide rods are installed at one end of the longitudinal screw, a shaping ring is installed at the lower end of the cylindrical guide rod, a suction plug ring is mounted on the outer wall surface of the shaping ring, the suction plug ring is movably fitted on the inner wall surface of the premixing barrel, a second sealing cover is movably mounted on the cylindrical guide rod, and the second sealing cover is movably fitted on the upper wall surface of the shaping ring.

[0016] Preferably, the catalytic dripping machine includes a storage box, a liquid supply port is inserted on the upper wall of the storage box, a partition is installed on the inner wall of the storage box, a liquid port is opened on the partition, a transverse screw is movably inserted on the side wall of the storage box and below the partition, a block is threadedly mounted on the transverse screw, the block is movably fitted on the inner wall of the storage box and the lower wall of the partition, and the catalyst outlet pipe is installed on the lower wall of the storage box and is located on one side of the block.

[0017] Preferably, the dripping power machine includes a driven bevel gear, which is meshed with the bevel gear segment, a rotating shaft is inserted on the driven bevel gear, a driving pulley is mounted on one end of the rotating shaft, a driven pulley is mounted on the transverse screw, belts are mounted on the driving pulley and the driven pulley, a support block is installed on the lower wall of the support frame, and the rotating shaft is movably inserted on the support block.

[0018] Preferably, the driving connector includes a stirring frame, which is movably inserted in the center of the kettle cover, and a driving gear is mounted on the stirring frame, which is meshed with the cylindrical gear segment. A motor is installed at one end of the stirring frame, and a stabilizing frame is installed between the motor and the kettle cover.

[0019] Preferably, a discharge valve is installed at the center of the lower wall of the kettle body, and a feeding pipe is inserted on the kettle cover.

[0020] A method for using a catalytic device for preparing a water reducing agent monomer comprises the following steps;

[0021] Step 1, adding the polycarboxylate water-reducing agent monomer raw materials into the kettle through the feeding pipe, and the water tank is filled with cooling water;

[0022] Step 2: The motor rotates back and forth, and the stirring frame mixes the product and the catalyst, while driving the drive connector to rotate;

[0023] Step 3, as the agitator rotates, the driving connector rotates on the limit plate through the longitudinal limit section, thereby driving the bevel gear section to rotate. When the bevel gear section rotates, the driven bevel gear meshing with it also rotates, thereby driving the rotating shaft to rotate on the support block. Under the cooperation of the driving pulley, the driven pulley and the belt, the transverse screw rotates, and the block moves on the inner wall of the storage box and the lower wall of the partition. When the block moves to the side of the liquid port, the catalyst enters the space below the partition in the storage box from the liquid port, and then drips into the premixing cylinder from the catalyst outlet pipe;

[0024] Step 4: When the stirrer rotates forward and reverse alternately, the longitudinal screw of the pumping machine drives the movable plug assembly to rise and fall through the thread matching and the guide limit of the cross limit guide rod;

[0025] Step 5: When the movable plug assembly descends, the raw materials in the kettle body enter the premixing cylinder through the bottom through-pipe, and then enter the space above the two-way valve through the two-way valve to be premixed with the catalyst. The cooling water in the water tank cools the premixing process;

[0026] Step 6: The premixed product is discharged from the top pipe under the continuous action of the stirrer and mixed into the kettle body;

[0027] Step 7, when the movable plug assembly rises, the second sealing cover descends to fit the sizing ring, seals the sizing ring, drives the product in the space above the movable plug assembly in the premixing cylinder to rise to discharge the premixing cylinder from the top channel, at this time, the lifting ring frame of the two-way valve rises under the guidance of the dumbbell-shaped guide rod, so that the first sealing cover leaves the return seat, and the polycarboxylate water-reducing agent monomer in the space above the two-way valve in the premixing cylinder flows out from the bottom through the return seat;

[0028] Step 8, the above process is repeated until the catalysis of the polycarboxylate water-reducing agent monomer is completed;

[0029] Step 9. After the catalysis is completed, the two-way water pump draws water from the water tank into the return cylinder, pushing the adjusting plug ring up, and the lifting ring frame drives the dumbbell-shaped guide rod to rise, so that the first cover leaves the return seat, and the catalytic product in the space above the two-way valve in the premixing cylinder passes through the return seat and flows out from the bottom through pipe, and the catalytic product is discharged from the discharge valve.

[0030] The catalytic equipment for preparing water-reducing agent monomers and the method for using the technical solution of the present invention are installed in a circular array through multiple temperature-controlled premixers, so that the catalyst can be uniformly and efficiently dripped into the reactor and premixed with the raw materials, which significantly improves the mixing efficiency and uniformity. The temperature-controlled premixer not only realizes the uniform dripping of the catalyst, but also has a temperature control function, which can effectively prevent the local temperature from being too high due to the reaction of the catalyst and the raw materials, thereby avoiding the decrease in product purity or the occurrence of side reactions, ensuring the quality and production efficiency of the product, and reducing the production cost. By adjusting the rotation speed of the agitator, the dripping speed and addition amount of the catalyst can be flexibly adjusted, making the catalytic process more controllable and enhancing the flexibility and adaptability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a three-dimensional schematic diagram from a top view of the overall catalytic equipment for preparing a water reducing agent monomer according to the present invention.

[0032] Figure 2 This is a three-dimensional schematic diagram of the overall upward angle of the catalytic equipment for preparing a water reducing agent monomer according to the present invention.

[0033] Figure 3 This is a schematic diagram of the front and cross-sectional structure of a catalytic device for preparing a water reducing agent monomer according to the present invention.

[0034] Figure 4 The present invention is a schematic diagram of the three-dimensional structure inside the kettle of a catalytic device for preparing a water reducing agent monomer.

[0035] Figure 5 This is a schematic diagram of the three-dimensional structure of the temperature-controlled premixer portion of a catalytic device for preparing a water-reducing agent monomer according to the present invention.

[0036] Figure 6 This is a schematic diagram of the three-dimensional structure from a partial top-down angle of a pumping machine of a catalytic device for preparing a water-reducing agent monomer according to the present invention.

[0037] Figure 7 This is a schematic diagram of the three-dimensional structure of a pumping machine of a catalytic device for preparing a water reducing agent monomer according to the present invention, viewed from a partial upward angle.

[0038] Figure 8 A catalytic device for preparing a water reducing agent monomer according to the present invention Figure 3 A partial enlarged view of point A in the middle.

[0039] Fig. 9 A catalytic device for preparing a water reducing agent monomer according to the present invention Figure 3 A partial enlarged view of point B in the middle.

[0040] Fig.10A catalytic device for preparing a water reducing agent monomer according to the present invention Figure 3 A partial enlarged view of point C in the middle.

[0041] Fig.11 A catalytic device for preparing a water reducing agent monomer according to the present invention Figure 3 A partial enlarged view of point D in the middle.

[0042] In the figure: 1, kettle body, 2, kettle cover, 3, water tank, 4, catalyst outlet pipe, 5, premixing cylinder, 6, bottom through pipe, 7, top through pipe, 8, water inlet pipe, 9, water outlet pipe, 10, return seat, 11, return cylinder, 12, lifting ring frame, 13, adjustment plug ring, 14, suction pipe, 15, two-way water pump, 16, dumbbell-shaped guide rod, 17, first sealing cover, 18, support frame, 19, limit plate, 20, longitudinal screw, 21, cross limit guide rod, 22, longitudinal limit section, 23, cylindrical gear Segment, 24, bevel gear segment, 25, cylindrical guide rod, 26, shaping ring, 27, suction plug ring, 28, second sealing cover, 29, storage box, 30, liquid supply port, 31, partition, 32, liquid through port, 33, transverse screw, 34, stopper, 35, driven bevel gear, 36, rotating shaft, 37, driving pulley, 38, driven pulley, 39, belt, 40, support block, 41, stirring frame, 42, driving gear, 43, motor, 44, stabilizing frame, 45, discharge valve, 46, feeding pipe. DETAILED DESCRIPTION

[0043] The present invention will be described in detail below in conjunction with the accompanying drawings. Figure 1-11 Shown is a catalytic device for preparing a water reducing agent monomer and a method of use.

[0044] Through the personnel in this field, all the electrical components in this case are connected to their corresponding power supplies through wires, and a suitable controller should be selected according to the actual situation to meet the control requirements. The specific connection and control sequence should refer to the following working principle, and the electrical connection between the electrical components is completed in the order of working in sequence. The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process, and does not explain the electrical control.

[0045] Embodiment 1:

[0046] A catalytic device for preparing a water reducing agent monomer comprises a kettle body 1, and a kettle cover 2 is connected to the kettle body 1 via a flange;

[0047] In the specific implementation process, a temperature control premixer is installed on the kettle body 1, and the number of the temperature control premixers is multiple and is installed on the kettle body 1 in a circular array. A drive connector is installed on the kettle cover 2, and the number of the drive connectors is multiple and is installed one by one corresponding to the temperature control premixers. A stirrer is also installed on the kettle cover 2, and the stirrer and the drive connector are connected to each other;

[0048] Specifically, the polycarboxylate water-reducing agent monomer raw materials are mixed and added into the kettle body 1, and the catalyst required for the preparation of the polycarboxylate water-reducing agent monomer is dripped through the temperature control premixer. Multiple temperature control premixers are installed in a circular array so that the catalyst is evenly and efficiently dripped into the interior of the kettle body 1. The raw materials and the catalyst are premixed in the temperature control premixer to improve the mixing efficiency. The temperature control premixer can control the temperature change produced by the action of the raw materials and the catalyst to prevent the decrease in product purity or the occurrence of side reactions caused by a sudden increase in temperature. The agitator is used to mix the raw materials and the catalyst, and at the same time, the drive connector is used to provide power for the multiple temperature control premixers;

[0049] In the specific implementation process, the temperature control premixer includes a catalytic dripping machine and a water tank 3, the inner wall of the water tank 3 is provided with insulation cotton, the catalytic dripping machine is installed on the side wall of the kettle body 1, the catalytic dripping machine includes a catalyst outlet pipe 4, the water tank 3 is installed on the inner wall of the kettle body 1, a premixing tube 5 is inserted on the water tank 3, the cross-sectional shape of the premixing tube 5 is a rectangular structure, a two-way valve is installed on the inner wall of the premixing tube 5 and located inside the water tank 3, a bottom through pipe 6 is inserted on the bottom side wall of the premixing tube 5, a top through pipe 7 is inserted on the top side wall of the premixing tube 5, the catalyst outlet pipe 4 is inserted on the kettle body 1 and the side wall of the premixing tube 5, and the catalyst outlet pipe 4 is located above the top through pipe 7, and a water inlet pipe 8 and a water outlet pipe 9 are penetrated on the water tank 3 and the kettle body 1;

[0050] Specifically, in actual use, the water inlet pipe 8 and the water outlet pipe 9 are connected to the cooling water circulation system. The specific structure and working principle of the cooling water circulation system can refer to the cooling water circulation main unit with publication number CN111649538A. Since it is a prior art, it will not be described in detail. The water tank 3 is filled with cooling water. By driving the connector, the raw materials in the kettle body 1 enter the premixing barrel 5 through the bottom through pipe 6, and then pass through the space above the two-way valve. The catalyst is dripped into the premixing barrel 5 from the catalyst outlet pipe 4, so that the raw materials and the catalyst are premixed in the internal space of the water tank 3 of the premixing barrel 5. The heat generated is taken away by the cooling water in the water tank 3 to prevent the heat from being transferred to a large amount of raw materials in the reactor. Then, the product of the mixture of the catalyst and the raw materials is discharged from the top through pipe 7 and mixed into the kettle body 1;

[0051] In the specific implementation process, the driving connector includes a pumping machine and a dripping power machine, the pumping machine is installed on the kettle cover 2 and movably inserted into the premixing cylinder 5, the dripping power machine and the pumping machine are connected to each other, and the dripping power machine is installed on the catalytic dripping machine;

[0052] Specifically, the pumping machine can reciprocate and rise in the premixing barrel 5, so that the raw materials in the kettle body 1 enter the premixing barrel 5 through the bottom pipe 6, then pass through the two-way valve, and finally the product of the catalyst and the raw materials is discharged from the top pipe 7. The dripping power machine can drip the catalyst from the catalyst outlet pipe 4 into the premixing barrel 5 in the form of dripping;

[0053] In the specific implementation process, the two-way valve includes a return-shaped seat 10, which is installed on the inner wall of the premixing cylinder 5 and located in the internal part of the water tank 3. A return-shaped cylinder 11 is embedded in the upper wall of the return-shaped seat 10, and a lifting ring frame 12 is movably inserted on the upper wall of the return-shaped cylinder 11. The lifting ring frame 12 is located inside the return-shaped cylinder 11 and is installed with an adjusting plug ring 13 at one end. The adjusting plug ring 13 is movably fitted on the inner wall of the return-shaped cylinder 11. A suction pipe 14 is inserted on the side wall of the lower end of the return-shaped cylinder 11. The suction pipe 14 runs through the side wall of the premixing cylinder 5, and a two-way water pump 15 is installed at one end of the suction pipe 14. The lifting ring frame 12 is located outside the return-shaped cylinder 11 and is installed with a plurality of dumbbell-shaped guide rods 16 at one end. A first cover 17 is movably sleeved on the dumbbell-shaped guide rod 16, and the first cover 17 is movably fitted on the upper wall of the return-shaped seat 10;

[0054] Specifically, the lifting ring frame 12 and the return cylinder 11 are sealed, and the lifting ring frame 12 can be lifted and moved in the return cylinder 11. When the catalyst is dripped, the lower end of the dumbbell-shaped guide rod 16 is attached to the upper wall of the return seat 10, and the first cover 17 can be blocked on the upper wall of the return seat 10 to prevent the raw materials in the space above the two-way valve in the premixing cylinder 5 from flowing back from the bottom through pipe 6. After the preparation of the polycarboxylic acid water-reducing agent monomer is completed, when the unloading work is carried out, the two-way water pump 15 pumps water in the water tank 3 into the return cylinder 11, pushes the regulating plug ring 13 up, and the lifting ring frame 12 drives the dumbbell-shaped guide rod 16 to rise, so that the first cover 17 leaves the return seat 10, and the polycarboxylate water-reducing agent monomer in the space above the two-way valve in the premixing cylinder 5 flows out from the bottom through pipe 6 through the return seat 10. The multiple dumbbell-shaped guide rods 16 are used to guide and limit the movement of the first cover 17, and the second cover 28 can move up and down on the multiple dumbbell-shaped guide rods 16;

[0055] In the specific implementation process, the pumping machine includes a support frame 18, the support frame 18 is installed on the upper wall of the kettle cover 2, a limit plate 19 is installed on the support frame 18, a drive connector is movably inserted on the limit plate 19, a longitudinal screw 20 is movably inserted on the drive connector through a thread, the longitudinal screw 20 movably penetrates the kettle cover 2 and the support frame 18, a movable plug assembly is installed at one end of the longitudinal screw 20, the movable plug assembly is movably fitted on the inner wall of the premixing barrel 5, a cross limit guide rod 21 is installed on the lower wall of the support frame 18, and the longitudinal screw 20 is movably sleeved on the cross limit guide rod 21;

[0056] Specifically, the agitator works in a forward and reverse rotational alternation, and under the limit of the limit plate 19, the drive connector can only perform forward and reverse rotational alternation. Under the cooperation with the thread of the longitudinal screw 20 and the guide limit of the cross limit guide rod 21, the longitudinal screw 20 can be adjusted in height in the vertical direction, and the movable plug assembly is thus raised and lowered in the premixing barrel 5.

[0057] In the specific implementation process, the drive connector includes a longitudinal limit segment 22, which is movably inserted on the limit plate 19, and a cylindrical gear segment 23 is provided at the upper end of the longitudinal limit segment 22, and a bevel gear segment 24 is provided at the upper end of the cylindrical gear segment 23;

[0058] Specifically, through the operation of the agitator, the agitator is meshed and connected with the cylindrical gear segment 23, and the drive connector rotates on the limit plate 19 through the longitudinal limit segment 22, so that the bevel gear segment 24 rotates;

[0059] In the specific implementation process, the movable plug assembly includes a plurality of cylindrical guide rods 25, the cylindrical guide rods 25 are installed at one end of the longitudinal screw 20, a shaped ring 26 is installed on the lower end of the cylindrical guide rod 25, a suction plug ring 27 is sleeved on the outer wall of the shaped ring 26, the suction plug ring 27 is movably fitted on the inner wall of the premixing tube 5, a second cover 28 is movably sleeved on the cylindrical guide rod 25, and the second cover 28 is movably fitted on the upper wall of the shaped ring 26;

[0060] Specifically, the plurality of cylindrical guide rods 25 are used to guide the movement of the second sealing cover 28. The second sealing cover 28 can move up and down on the plurality of cylindrical guide rods 25. The shaping ring 26 installed at the lower end of the cylindrical guide rod 25 and the suction plug ring 27 sleeved on the outer wall thereof together constitute a movable fitting part with the inner wall of the premixing cylinder 5. When the movable plug assembly descends, the product between the movable plug assembly and the two-way valve lifts up the second sealing cover 28, and under the guidance of the cylindrical guide rod 25, the shaping ring 26 is separated, and the product passes through the shaping ring 26 and enters the premixing cylinder 5 to move. In the space above the plug assembly, when the movable plug assembly rises, the second sealing cover 28 descends to fit the shaping ring 26, seals the shaping ring 26, and drives the product in the space above the movable plug assembly in the premixing cylinder 5 to rise to be discharged from the top channel of the premixing cylinder 5. At this time, the first sealing cover 17 is guided by the multiple dumbbell-shaped guide rods 16 to separate from the return cylinder 11, and the product in the kettle body 1 is sucked into the premixing cylinder 5 from the bottom through pipe 6, and enters the space above the two-way valve of the premixing cylinder 5 through the return cylinder 11. The work is repeated in this way to realize the circulation of the product between the kettle body 1 and the premixing cylinder 5.

[0061] In the specific implementation process, the catalytic dripping machine includes a storage box 29, a liquid supply port 30 is inserted on the upper wall of the storage box 29, a partition 31 is installed on the inner wall of the storage box 29, a liquid through port 32 is opened on the partition 31, a transverse screw 33 is movably inserted on the side wall of the storage box 29 and located below the partition 31, a stopper 34 is threadedly sleeved on the transverse screw 33, and the stopper 34 is movably fitted on the inner wall of the storage box 29 and the lower wall of the partition 31, and the catalyst outlet pipe 4 is installed on the lower wall of the storage box 29 and is located on one side of the stopper 34;

[0062] Specifically, the liquid supply port 30 is connected to the catalyst delivery system. When the stopper 34 blocks the liquid port 32, the catalyst cannot drip from the liquid port 32. When the stopper 34 moves to one side of the liquid port 32, the catalyst enters the space below the partition 31 in the storage box 29 from the liquid port 32, and then is discharged from the catalyst outlet pipe 4.

[0063] In the specific implementation process, the dripping power machine includes a driven bevel gear 35, the driven bevel gear 35 is meshed with the bevel gear segment 24, a rotating shaft 36 is inserted on the driven bevel gear 35, a driving pulley 37 is mounted on one end of the rotating shaft 36, a driven pulley 38 is mounted on the transverse screw 33, a belt 39 is mounted on the driving pulley 37 and the driven pulley 38, a support block 40 is installed on the lower wall of the support frame 18, and the rotating shaft 36 is movably inserted on the support block 40;

[0064] Specifically, when the driving connector rotates, the bevel gear segment 24 rotates, driving the driven bevel gear 35 to rotate, and the rotating shaft 36 rotates on the supporting block 40. Under the cooperation of the driving pulley 37, the driven pulley 38 and the belt 39, the driven pulley 38 drives the transverse screw 33 to rotate, and the block 34 is thus moved to block or leak the liquid port 32. When the movable plug assembly rises, the block 34 moves to one side of the liquid port 32, leaking the liquid port 32 to perform catalyst dripping. When the movable plug assembly descends, the block 34 moves in the opposite direction to block the liquid port 32 and suspend the catalyst dripping. By adjusting the rotation speed of the agitator, the rotation speed of the driving connector can be adjusted, so the catalyst dripping speed is adjusted. For multiple temperature-controlled premixers, the catalyst dripping speed and addition amount can be adjusted at the same time, which is more flexible.

[0065] In the specific implementation process, the driving connector includes a stirring frame 41, which is movably inserted in the center of the kettle cover 2, and a driving gear 42 is mounted on the stirring frame 41. The driving gear 42 and the cylindrical gear segment 23 are meshed with each other. A motor 43 is installed at one end of the stirring frame 41, and a stabilizing frame 44 is installed between the motor 43 and the kettle cover 2;

[0066] Specifically, the stabilizing frame 44 is used to fix the motor 43. The motor 43 reciprocates to make the stirring frame 41 reciprocate in the center of the kettle cover 2 to mix the product and the catalyst. The driving gear 42 is meshed with the cylindrical gear segment 23, and the driving connector as a whole rotates accordingly.

[0067] In the specific implementation process, a discharge valve 45 is installed at the center of the lower wall of the kettle body 1, and a feeding pipe is inserted on the kettle cover 2;

[0068] Specifically, the discharge valve 45 is used to discharge the polycarboxylate water-reducing agent monomer after catalysis, and the feeding pipe is used to add the polycarboxylate water-reducing agent single raw material other than the catalyst.

[0069] Embodiment 2:

[0070] A method for using a catalytic device for preparing a water reducing agent monomer comprises the following steps;

[0071] Step 1, adding the polycarboxylate water-reducing agent monomer raw materials into the kettle body 1 through the feeding pipe, and the water tank 3 is filled with cooling water;

[0072] Step 2, the motor 43 rotates back and forth, the stirring frame 41 mixes the product and the catalyst, and drives the driving connector to rotate at the same time;

[0073] Step 3, as the agitator rotates, the driving connector rotates on the limit plate 19 through the longitudinal limit segment 22, thereby driving the bevel gear segment 24 to rotate. When the bevel gear segment 24 rotates, the driven bevel gear 35 meshing therewith also rotates, thereby driving the rotating shaft 36 to rotate on the support block 40. Under the cooperation of the driving pulley 37, the driven pulley 38 and the belt 39, the transverse screw 33 rotates, and the block 34 moves on the inner wall of the storage box 29 and the lower wall of the partition 31. When the block 34 moves to the side of the liquid port 32, the catalyst enters the space below the partition 31 in the storage box 29 from the liquid port 32, and then drips into the premixing cylinder 5 from the catalyst outlet pipe 4;

[0074] Step 4: When the stirrer rotates forward and reverse alternately, the longitudinal screw 20 of the pumping machine drives the movable plug assembly to move up and down through the thread matching and the guide limit of the cross limit guide rod 21;

[0075] Step 5, when the movable plug assembly descends, the raw materials in the kettle body 1 enter the premixing cylinder 5 through the bottom through pipe 6, and then enter the space above the two-way valve through the two-way valve to be premixed with the catalyst, and the cooling water in the water tank 3 cools the premixing process;

[0076] Step 6: The premixed product is discharged from the top pipe 7 under the continuous action of the agitator and mixed into the kettle body 1;

[0077] Step 7, when the movable plug assembly rises, the second sealing cover 28 descends to fit the sizing ring 26, seals the sizing ring 26, drives the product in the space above the movable plug assembly in the premixing cylinder 5 to rise to discharge the premixing cylinder 5 from the top channel, at this time, the lifting ring frame 12 of the two-way valve rises under the guidance of the dumbbell-shaped guide rod 16, so that the first sealing cover 17 leaves the return seat 10, and the polycarboxylate water-reducing agent monomer in the space above the two-way valve in the premixing cylinder 5 flows out from the bottom through pipe 6 through the return seat 10;

[0078] Step 8, the above process is repeated until the catalysis of the polycarboxylate water-reducing agent monomer is completed;

[0079] Step 9, after the catalysis is completed, the two-way water pump 15 pumps the water in the water tank 3 into the return tube 11, pushing the regulating plug ring 13 up, and the lifting ring frame 12 drives the dumbbell-shaped guide rod 16 to rise, so that the first cover 17 leaves the return seat 10, and the catalytic product in the space above the two-way valve in the premixing tube 5 flows out from the bottom through pipe 6 through the return seat 10, and the catalytic product is discharged from the discharge valve 45.

[0080] The above technical solutions only reflect the preferred technical solutions of the technical solutions of the present invention. Some changes that may be made to certain parts thereof by technicians in this technical field all reflect the principles of the present invention and fall within the protection scope of the present invention.

Claims

1. A catalytic device for preparing a water reducing agent monomer, comprising a kettle body (1), wherein a kettle cover (2) is connected to the kettle body (1) via a flange. It is characterized by: The kettle body (1) is provided with a temperature control premixer, wherein the number of the temperature control premixers is plural and they are installed on the kettle body (1) in a circular array; the kettle cover (2) is provided with a drive connector, wherein the number of the drive connectors is plural and they are installed one-to-one with the temperature control premixers; the kettle cover (2) is also provided with a stirrer, wherein the stirrer and the drive connector are connected to each other; The temperature-controlled premixer comprises a catalytic dripping machine and a water tank (3). The inner wall of the water tank (3) is provided with thermal insulation cotton. The catalytic dripping machine is installed on the side wall of the kettle body (1). The catalytic dripping machine comprises a catalyst outlet pipe (4). The water tank (3) is installed on the inner wall of the kettle body (1). A premixing tube (5) is inserted on the water tank (3). The cross-section of the premixing tube (5) is a rectangular structure. The inner wall of the premixing tube (5) and located at the water tank (3) are provided with thermal insulation cotton. A two-way valve is installed inside the box (3); a bottom through-pipe (6) is inserted on the bottom side wall of the premixing cylinder (5); a top through-pipe (7) is inserted on the top side wall of the premixing cylinder (5); the catalyst outlet pipe (4) is inserted on the kettle body (1) and the side wall of the premixing cylinder (5); and the catalyst outlet pipe (4) is located above the top through-pipe (7); and a water inlet pipe (8) and a water outlet pipe (9) are inserted through the water box (3) and the kettle body (1); The driving connector comprises a pumping machine and a dripping power machine, the pumping machine is mounted on the kettle cover (2) and is movably inserted into the premixing cylinder (5), the dripping power machine and the pumping machine are connected to each other, and the dripping power machine is mounted on the catalytic dripping machine; The two-way valve comprises a return seat (10), the return seat (10) is mounted on the inner wall of the premixing cylinder (5) and is located inside the water tank (3), a return cylinder (11) is embedded in the upper wall of the return seat (10), a lifting ring frame (12) is movably inserted into the upper wall of the return cylinder (11), an adjusting plug ring (13) is installed at one end of the lifting ring frame (12) located inside the return cylinder (11), and the adjusting plug ring (13) is movably fitted on the inner wall of the return cylinder (11). A suction pipe (14) is inserted on the side wall surface of the lower end of the return cylinder (11), and the suction pipe (14) penetrates the side wall surface of the premixing cylinder (5). A two-way water pump (15) is installed at one end of the suction pipe (14). The lifting ring frame (12) is located outside the return cylinder (11) and is equipped with a plurality of dumbbell-shaped guide rods (16) at one end. A first cover (17) is movably mounted on the dumbbell-shaped guide rod (16), and the first cover (17) is movably fitted on the upper wall surface of the return seat (10); The pumping machine comprises a support frame (18), the support frame (18) is mounted on the upper wall surface of the kettle cover (2), a limiting plate (19) is mounted on the support frame (18), a driving connector is movably inserted on the limiting plate (19), a longitudinal screw (20) is movably inserted on the driving connector through a thread, the longitudinal screw (20) movably penetrates the kettle cover (2) and the support frame (18), a movable plug assembly is mounted on one end of the longitudinal screw (20), the movable plug assembly is movably fitted on the inner wall surface of the premixing cylinder (5), a cross limiting guide rod (21) is mounted on the lower wall surface of the support frame (18), and the longitudinal screw (20) is movably sleeved on the cross limiting guide rod (21); The catalytic dripping machine comprises a storage box (29), the upper wall of the storage box (29) is inserted with a liquid supply port (30), the inner wall of the storage box (29) is installed with a partition (31), the partition (31) is provided with a liquid passage port (32), a transverse screw (33) is movably inserted on the side wall of the storage box (29) and located below the partition (31), a stopper (34) is threadedly sleeved on the transverse screw (33), the stopper (34) is movably fitted on the inner wall of the storage box (29) and the lower wall of the partition (31), and the catalyst outlet pipe (4) is installed on the lower wall of the storage box (29) and located on one side of the stopper (34); The dripping power machine comprises a driven bevel gear (35), the driven bevel gear (35) is meshed with the bevel gear section (24), a rotating shaft (36) is inserted on the driven bevel gear (35), one end of the rotating shaft (36) is sleeved with a driving pulley (37), the transverse screw (33) is sleeved with a driven pulley (38), the driving pulley (37) and the driven pulley (38) are sleeved with a belt (39), a support block (40) is installed on the lower wall of the support frame (18), and the rotating shaft (36) is movably inserted on the support block (40).

2. A catalytic device for preparing a water reducing agent monomer according to claim 1, characterized in that: The drive connector comprises a longitudinal limiting section (22), the longitudinal limiting section (22) is movably inserted on the limiting plate (19), a cylindrical gear section (23) is arranged at the upper end of the longitudinal limiting section (22), and a bevel gear section (24) is arranged at the upper end of the cylindrical gear section (23).

3. A catalytic device for preparing a water reducing agent monomer according to claim 2, characterized in that: The movable plug assembly comprises a plurality of columnar guide rods (25), wherein the columnar guide rods (25) are mounted on one end of the longitudinal screw rod (20), a shaped ring (26) is mounted on the lower end of the columnar guide rod (25), a suction plug ring (27) is sleeved on the outer wall surface of the shaped ring (26), and the suction plug ring (27) is movably fitted on the inner wall surface of the premixing cylinder (5), and a second sealing cover (28) is movably fitted on the columnar guide rod (25), and the second sealing cover (28) is movably fitted on the upper wall surface of the shaped ring (26).

4. A catalytic device for preparing a water reducing agent monomer according to claim 3, characterized in that: The driving connector comprises a stirring frame (41), the stirring frame (41) is movably inserted in the central part of the kettle cover (2), a driving gear (42) is mounted on the stirring frame (41), the driving gear (42) and the cylindrical gear segment (23) are meshed with each other, a motor (43) is installed at one end of the stirring frame (41), and a stabilizing frame (44) is installed between the motor (43) and the kettle cover (2).

5. The catalytic equipment for preparing water reducing agent monomer according to claim 4, characterized in that: A discharge valve (45) is installed at the center of the lower wall of the kettle body (1), and a feeding pipe is inserted on the kettle cover (2).

6. A method for using a catalytic device for preparing a water reducing agent monomer, applied to the device according to claim 5, characterized in that: The following steps are included: Step 1: Add the mixed raw materials of polycarboxylic acid water-reducing agent monomers into the kettle (1) through the feeding pipe, and fill the water tank (3) with cooling water; Step 2, the motor (43) reciprocates, the stirring frame (41) mixes the product and the catalyst, and drives the driving connector to rotate; Step 3, as the agitator rotates, the driving connector rotates on the limit plate (19) through the longitudinal limit section (22), thereby driving the bevel gear section (24) to rotate. When the bevel gear section (24) rotates, the driven bevel gear (35) meshing therewith also rotates, thereby driving the rotating shaft (36) to rotate on the support block (40). Under the cooperation of the driving pulley (37), the driven pulley (38) and the belt (39), the transverse screw (33) rotates, and the stopper (34) moves on the inner wall of the storage box (29) and the lower wall of the partition (31). When the stopper (34) moves to the side of the liquid port (32), the catalyst enters the space below the partition (31) in the storage box (29) from the liquid port (32), and then drips into the premixing cylinder (5) from the catalyst outlet pipe (4); Step 4: When the stirrer rotates forward and reverse alternately, the longitudinal screw (20) of the pumping machine drives the movable plug assembly to move up and down through the threaded fit and the guide limit of the cross limit guide rod (21); Step 5, when the movable plug assembly descends, the raw materials in the kettle body (1) enter the premixing cylinder (5) through the bottom through pipe (6), and then enter the space above the two-way valve through the two-way valve to be premixed with the catalyst. The cooling water in the water tank (3) cools the premixing process; Step 6: The premixed product is discharged from the top pipe (7) under the continuous action of the stirrer and mixed into the kettle body (1); Step 7, when the movable plug assembly rises, the second sealing cover (28) descends to fit the sizing ring (26), seals the sizing ring (26), drives the product in the space above the movable plug assembly in the premixing tube (5) to rise to discharge the premixing tube (5) from the top channel, at this time, the lifting ring frame (12) of the two-way valve rises under the guidance of the dumbbell-shaped guide rod (16), so that the first sealing cover (17) leaves the return seat (10), and the polycarboxylate water-reducing agent monomer in the space above the two-way valve in the premixing tube (5) flows out from the bottom through pipe (6) through the return seat (10); Step 8, the above process is repeated until the catalysis of the polycarboxylate water-reducing agent monomer is completed; Step 9, after the catalysis is completed, the two-way water pump (15) pumps the water in the water tank (3) into the return tube (11), pushing the regulating plug ring (13) up, and the lifting ring frame (12) drives the dumbbell-shaped guide rod (16) to rise, so that the first cover (17) leaves the return seat (10), and the catalytic product in the space above the two-way valve in the premixing tube (5) flows out from the bottom through pipe (6) through the return seat (10), and the catalytic product is discharged from the discharge valve (45).

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