Production equipment for preparing 6C polycarboxylate superplasticizer

Abstract

The utility model relates to the technical field of mechanical production equipment, in particular to production equipment for preparing a 6C polycarboxylate superplasticizer. Comprising a kettle body and a kettle cover, and a first conveying device and a second conveying device are arranged at the lower end of the kettle cover; the heat exchange device comprises a spherical coil pipe arranged on the inner wall of the kettle body; the device further comprises a stirring device, the stirring device comprises a guide cylinder and a stirrer, the stirrer comprises a stirring shaft, and the stirring shaft is sequentially and fixedly provided with a runoff pushing disc, a first propelling paddle, a second propelling paddle, a hinge paddle disc, a third propelling paddle, a fourth propelling paddle and a composite paddle from top to bottom. The stirring and dispersing device has the advantages that the stirring and dispersing effects, the mass transfer efficiency and the heat exchange efficiency are improved, the energy consumption in the production process is reduced, the safety and quality problems caused by too violent reaction due to local high concentration are avoided, the reaction time is shortened, and the production efficiency of the water reducing agent is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical production equipment, in particular to a production device for preparing 6C polycarboxylate water reducer. Background Technique

[0002] A water reducer is a concrete admixture that can reduce the mixing water consumption under the condition of maintaining the basic unchanged slump of concrete.

[0003] The reaction mechanism of polycarboxylate water reducer is that vinyl polyethers such as HPEG, TPEG, GPEG, and VPEG and unsaturated monomers such as acrylic acid, maleic acid, and acrylate esters undergo a chain reaction through free radical copolymerization under the initiation of a redox system to form a polycarboxylate water reducer. The reaction temperature, the dropping process, and the mass transfer efficiency of the reaction kettle are the main factors affecting the product quality of polycarboxylate water reducer.

[0004] In recent years, the synthesis of polycarboxylate water reducer with 6C monomers (GPEG, VPEG) has stood out among many polycarboxylate water reducers due to its room temperature and low temperature production process and excellent product performance with high cost performance. However, there are already many mismatches between the traditional polycarboxylate water reducer production device and the 6C water reducer production; first of all, the traditional polycarboxylate water reducer production device mostly uses paddle or anchor agitators. Due to the structural design, there will be stirring dead corners. After the A and B materials are dropped, they will stay on the upper layer of the reaction liquid and there is a risk of explosive polymerization, and gels are mostly generated on the kettle body of the reaction kettle; secondly, for the existing polycarboxylate water reducer production device, in order to increase the solubility of polyether monomers, the method of jacket heating and stirring is mostly used. Since the 6C monomers are highly active and the synthesis temperature of the water reducer is mostly controlled at room temperature and low temperature, the heat transfer efficiency of the traditional jacket temperature control is generally not suitable for the production of 6C polycarboxylate water reducer; in addition, the A and B material dropping device mostly uses single-tube dropping, which is not conducive to the diffusion of A and B materials in the reaction liquid and has an adverse effect on the quality of the water reducer.

[0005] To solve the above technical problems, the industry has conducted relevant research on improving the stirring efficiency, enhancing the heat exchange efficiency, and accelerating the mixing of materials. Chinese Utility Model Patent Authorization Announcement No. CN 220803225 U discloses a glass-lined reactor production device, which includes a kettle body. The top of the kettle body is provided with a feed inlet and a dropping port, and the bottom of the kettle body is provided with a discharge port; a jacket is provided on the outer surface of the kettle body; a hose and a dropping loop pipe are also provided in the kettle body; the lower end of the hose extends into the kettle body through the dropping port and is connected to the dropping loop pipe through a dropping flange. Dropping holes are provided on the dropping loop pipe; the hose is fixed on the dropping port through an intermediate flange, and the upper end of the hose is connected to the dropping material pipeline; a cylinder body with openings at both the upper and lower ends and fixedly installed in the kettle body is provided in the kettle body; a rotating shaft is provided inside the cylinder body, and a lifting auger is installed on the rotating shaft; one end of the rotating shaft penetrates the top of the kettle body and is connected to the output end of the motor, and the other end is installed with a U-shaped stirring paddle, and the U-shaped stirring paddle is located between the outer wall of the cylinder body and the inner wall of the kettle body. This reactor forms flow channels with different flow directions inside, realizes the efficient, uniform and dead-angle-free mixing of materials, and improves the heat transfer and heat exchange efficiency and the synthesis reaction efficiency. To a certain extent, this utility model improves the stirring efficiency, but for a large-volume reactor, there are still certain stirring dead angles in the upper-layer reaction liquid, and the temperature control of the jacket and the dropping of the loop pipe only improve the reaction to a certain extent. Summary of the Utility Model

[0006] The purpose of the present utility model is to solve the deficiencies of the prior art and provide a production device for preparing 6C polycarboxylate water reducer, which is used to avoid the formation of stirring dead angles in the stirring kettle and uniformly and densely distribute the materials.

[0007] To achieve the above purpose, a production device for preparing 6C polycarboxylate water reducer is designed, which includes a kettle body, a kettle cover and a stirring device, and also includes a first feeding device and a second feeding device arranged below the kettle cover. The first feeding device includes at least one first feeding pipe and several first cloth pipes. Several cloth holes are provided in each first cloth pipe. Several first cloth pipes are arranged side by side horizontally and are communicated with the first feeding pipe; the second feeding device includes at least one second feeding pipe and several second cloth pipes. Several cloth holes are also provided in each second cloth pipe. Several second cloth pipes are arranged side by side horizontally and are communicated with the second feeding pipe; several first cloth pipes and several second cloth pipes are arranged alternately.

[0008] Preferably, the first feeding device of the present utility model further includes a fixed frame. The first feeding pipe is connected to the liquid feeding port on the kettle cover and is arranged at the lower end of the kettle cover. One end of the fixed frame is connected to the kettle cover, and the other end of the fixed frame is connected to the first cloth pipe. One end of the first cloth pipe close to the kettle body is conductively connected to the lower end of the first feeding pipe. A number of cloth holes are equidistantly arranged on the lower side of the first cloth pipe for cloth feeding; the second feeding device further includes a fixed frame. The second feeding pipe is connected to the liquid feeding port on the kettle cover and is arranged at the lower end of the kettle cover. One end of the fixed frame is connected to the kettle cover, and the other end of the fixed frame is connected to the second cloth pipe. One end of the second cloth pipe close to the kettle body is conductively connected to the lower end of the second feeding pipe. A number of cloth holes are equidistantly arranged on the lower side of the second cloth pipe for cloth feeding; there is a gap between the first cloth pipe and the second cloth pipe near the center position of the kettle body.

[0009] Preferably, the present utility model further includes a heat exchange device. The heat exchange device includes a spherical coil arranged on the inner wall of the kettle body. The spherical coil is arranged in a spiral shape. A coil inlet is arranged at the lower part of the kettle body and is conductively connected to the coil. A coil outlet is arranged at the upper part of the kettle body and is conductively connected to the coil.

[0010] Preferably, the present utility model further includes a stirring device. The stirring device includes a draft tube and a stirrer. The draft tube is fixed in the kettle body through a load-bearing bracket. The stirrer includes a stirring shaft. The stirring shaft is arranged at the central axis position of the kettle cover and is movably connected. The stirring shaft is successively and fixedly provided with a radial thrust plate, a first propulsion paddle, a second propulsion paddle, a pitched blade disk, a third propulsion paddle, a fourth propulsion paddle, and a composite paddle from top to bottom. The top of the stirring shaft is fixedly connected to a motor.

[0011] Preferably, the kettle body of the present utility model is externally wrapped with heat-insulating cotton. The inlet and outlet of the heat exchange device are conductively connected to a high and low temperature all-in-one machine. A lifting type discharge valve is arranged at the bottom of the kettle body, and a temperature sensor is arranged inside the kettle body.

[0012] Preferably, the spherical coil of the present utility model is composed of a number of mutually conductively connected thin-walled spherical shells. The number of thin-walled spherical shells are tangent to each other and are hermetically connected to form a fluid channel inside the coil.

[0013] Preferably, the draft tube of the stirring device of the present utility model is a cylindrical tube structure. A gap for the pitched blade plate to pass through is arranged in the middle of the draft tube.

[0014] Preferably, the runoff push plate of the present utility model includes an inner ring, an outer ring and curved blades. A gap is formed between the inner ring and the outer ring of the runoff push plate. The curved blades are vertically arranged in the gap and fixedly connected to the inner ring and the outer ring of the runoff push plate. The folded blade impeller includes an inner ring, an outer ring and blade impellers. The outer diameter of the outer ring of the folded blade impeller is smaller than the inner diameter of the coil pipe. The inner ring of the folded blade impeller is arranged in the gap of the draft tube. The width of the inner ring of the folded blade impeller is greater than the thickness of the draft tube. The inner ring and the outer ring of the folded blade impeller are fixedly connected by blade impellers. The blade impellers are horizontally arranged in the kettle body and are perpendicularly connected to the stirring shaft. The blade impellers of the folded blade impeller are obliquely inclined at an obtuse angle inside the inner ring of the folded blade impeller, and the part of the blade impellers of the folded blade impeller in the gap between the outer ring and the inner ring of the folded blade impeller is obliquely inclined at an acute angle. The first propulsion paddle, the second propulsion paddle, the third propulsion paddle and the fourth propulsion paddle are obliquely connected upward with the stirring shaft and are arranged on the stirring shaft in a staggered manner.

[0015] Preferably, the composite paddle of the present utility model includes an inner ring and an outer ring horizontally arranged at the lower part of the kettle body. The outer ring is higher than the inner ring to form a stepped design. The outer ring of the composite paddle is fixedly connected to the stirring shaft through a plurality of horizontally arranged folded blade plates. The inner ring of the composite paddle is fixedly connected to the stirring shaft through a plurality of horizontally arranged folded blade plates. The folded blade plates of the inner ring and the outer ring of the composite paddle are connected to each other through a plurality of load-bearing rods in the vertical direction. A plurality of inclined scraping plates are arranged along the circumference on the outer sides of the inner ring and the outer ring of the composite paddle. The folded blade plates of the outer ring of the composite paddle are arranged at the lower part of the draft tube in the kettle body and there is a gap between them and the lower part of the draft tube.

[0016] Compared with the prior art, the advantages of the present utility model are as follows:

[0017] 1. Each structural unit of the stirring device cooperates with each other. There is no dead angle in stirring and guiding the fluid to flow in multiple directions between the inside and outside of the draft tube and the upper and lower layers of the reaction liquid, greatly improving the stirring and dispersion effect and enhancing the mass transfer efficiency.

[0018] 2. The heat exchange device adopts a spherical coil pipe, which greatly increases the heat exchange area, improves the heat exchange efficiency, and cooperates with the stirring system. It can quickly dissolve monomers in an environment of 10 - 15°C, reducing the energy consumption in the production process and effectively controlling the production cost.

[0019] 3. The feeding device performs planar dropping, which can avoid safety and quality problems caused by overly intense reaction due to high local concentration. At the same time, the excellent mass transfer efficiency of the stirring system cooperates with the feeding device to shorten the reaction time and improve the production efficiency of the water reducer. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a sectional view of the present utility model;

[0021] Figure 2 Top view of the spherical coil pipe of the present utility model;

[0022] Figure 3 Front view of the spherical coil pipe of the present utility model;

[0023] Figure 4 Top view of the cloth feeding device of the present utility model;

[0024] Figure 5 Bottom view of the cloth feeding device of the present utility model;

[0025] Figure 6 Top view of the runoff push plate of the present utility model;

[0026] Figure 7 Front view of the runoff push plate of the present utility model;

[0027] Figure 8 Top view of the folding blade paddle disc of the present utility model;

[0028] Figure 9 Top view of the compound paddle of the present utility model;

[0029] Figure 10 Bottom view of the compound paddle of the present utility model;

[0030] Figure 11 Front view of the compound paddle of the present utility model.

[0031] In the figure: 1 is the solid feeding port, 2 is the first liquid feeding port, 2.1 is the second liquid feeding port, 3 is the draft tube, 4 is the spherical coil pipe, 4.1 is the load-bearing bolt, 5 is the load-bearing bracket, 6 is the spherical coil pipe inlet, 7 is the lifting discharge valve, 8 is the spherical coil pipe outlet, 9 is the motor, 10 is the stirring shaft, 11 is the cloth feeding device, 11.1 is the material conveying pipe, 11.2 is the cloth feeding pipe, 11.3 is the flange, 11.4 is the fixed frame, 11.5 is the cloth feeding hole, 12 is the runoff push plate, 12.1 is the inner ring of the runoff push plate, 12.2 is the outer ring of the runoff push plate, 12.3 is the load-bearing rod of the runoff push plate, 12.4 is the curved blade, 13 is the propulsion paddle, 14 is the folding blade paddle disc, 14.1 is the obtuse blade, 14.2 is the acute blade, 14.3 is the load-bearing rod of the folding blade paddle disc, 14.4 is the inner ring of the folding blade paddle disc, 14.5 is the outer ring of the folding blade paddle disc, 15 is the compound paddle, 15.1 is the inner ring of the compound paddle, 15.2 is the outer ring of the compound paddle, 15.3 is the upper load-bearing rod of the compound paddle; 15.4 is the upper forward folding blade of the compound paddle, 15.5 is the upper reverse folding blade of the compound paddle, 15.6 is the lower load-bearing rod of the compound paddle; 15.7 is the lower reverse folding blade of the compound paddle, 15.8 is the inclined scraper, 15.9 is the vertical load-bearing rod, 15.10 is the vertical folding plate. Specific embodiments

[0032] To make the objectives, technical solutions, and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be described clearly and completely below. Apparently, the described embodiments are some, but not all, of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts also belong to the scope of protection of the present utility model.

[0033] See Figures 1 to 11 , a production device for preparing 6C polycarboxylate water reducer.

[0034] It includes a heat exchange device composed of a spherical coil 4, a spherical coil inlet 6, and a spherical coil outlet 8. The spherical structure design of the spherical coil 4 increases the heat exchange area and significantly improves the heat exchange efficiency. The spherical coil 4 is composed of several hollow spherical shells connected in series. The spherical coil 4 is arranged in a spiral shape on the inner side wall of the kettle body and is fixedly connected to the kettle body through several load-bearing bolts 4.1. The kettle body is provided with a spherical coil inlet 6 and a spherical coil outlet 8, and the inlet and outlet are respectively connected to the spherical coil 4 and a high and low temperature integrated machine.

[0035] It further includes a feeding device 11 for the planar dropping of the A and B materials of the 6C polycarboxylate water reducer, so as to make them fully dispersed and avoid the influence of explosive polymerization on the product quality. The feeding device 11 specifically includes two groups of symmetrically arranged feeding pipes 11.1, feeding tubes 11.2, and a fixing frame 11.4. The fixing frame 11.4 plays a supporting role and is fixedly connected to the kettle cover and the feeding tube 11.2 at both ends. The end of the feeding tube 11.2 close to the kettle body is connected in series with the lower end of the feeding pipe 11.1, and the other end of the feeding pipe 11.1 is connected to the first liquid inlet 2 of the kettle cover through a flange. The feeding tubes 11.2 of the two groups of feeding devices 11 are several thin tubes, and the thin tubes are arranged in parallel and crosswise, and several feeding holes 11.5 are also arranged at equal intervals at the lower end of the thin tubes.

[0036] A stirring shaft 10 is arranged on the central axis of the kettle body. The top of the stirring shaft 10 extends out of the kettle cover, and a motor 9 is also arranged at the top of the stirring shaft 10. On the part of the stirring shaft 10 inside the kettle body, several asymmetric and staggered propulsion paddles 13 are arranged on the stirring shaft 10. The propulsion paddles are designed to be inclined upward for forming a flow guide in a specified direction.

[0037] At the upper end of the stirring shaft 10 in the kettle body, a radial flow pusher plate 12 is provided. Under the action of the curved blades 12.4, the radial flow pusher plate 12 makes the upper-layer liquid in the kettle flow radially, avoiding the stirring dead angle generated on the upper kettle wall. The radial flow pusher plate 12 includes an inner ring 12.1 and an outer ring 12.2. The inner ring 12.1 is horizontally connected to the stirring shaft 10 through a load-bearing rod 12.3. The diameter of the outer ring 12.2 is larger than that of the inner ring 12.1, and there is a gap between them. A number of curved blades 12.4 are vertically arranged in the gap along the circumferential direction and are fixedly connected to the inner ring 12.1 and the outer ring 12.2. The curved blade 12.4 is a curved long strip blade, which is arranged with a curved edge with a curved blade 12.4 degree in the horizontal position and a straight edge in the vertical position, and. The curved blade 12.4 is arranged on the upper side of the radial flow pusher plate 12 for forming a diversion with a specific direction.

[0038] At the lower end of the radial flow pusher plate 12 of the stirring shaft 10 in the kettle body, a folded blade paddle disk 14 is further provided. The folded blade paddle disk 14 includes an inner ring 14.4 and an outer ring 14.5. The inner and outer rings are connected to the stirring shaft 10 through load-bearing rods 14.1. A number of paddle boards are further arranged on the load-bearing rod 14.1. An acute-angle paddle blade 14.2 is arranged on the load-bearing rod 14.1 in the inner circle of the inner ring 14.4, and an obtuse-angle paddle blade 14.1 is arranged on the load-bearing rod 14.1 between the inner ring 14.4 and the outer ring 14.5. The obtuse angle and acute angle are expressed in the same reference system, and there is a corresponding mathematical relationship between the inclination degrees of the two paddle blades. The inclination degree of the obtuse-angle paddle blade 14.1 is 90° - 180°, and the inclination degree of the acute-angle paddle blade 14.2 is 0° - 90°.

[0039] At the lower end of the folded blade paddle disk 14 of the stirring shaft 10 in the kettle body, a compound paddle 15 is further provided. The compound paddle 15 includes an outer ring 15.2 arranged on the upper layer and an inner ring 15.1 arranged on the lower layer. The outer ring 15.2 is connected to the stirring shaft 10 through an upper-layer load-bearing rod 15.3, and the inner ring 15.1 is connected to the stirring shaft 10 through a lower-layer load-bearing rod 15.6.

[0040] Among them, the upper-layer load-bearing rod 15.3 of the outer ring 15.2 is similar to the radial flow pusher plate 12. A reverse folded blade paddle 15.5 is arranged on the upper-layer load-bearing rod 15.3 in the inner circle, and a forward folded blade paddle 15.4 is arranged on the upper-layer load-bearing rod 15.3 in the outer circle. A lower-layer reverse folded blade paddle 15.7 is arranged on the lower-layer load-bearing rod 15.6 of the inner ring 15.1.

[0041] Moreover, a vertical folded blade plate 15.10 is also connected between the upper-layer load-bearing rod 15.3 and the lower-layer load-bearing rod 15.6. An inclined scraping plate 15.8 is also connected and arranged on the outer sides of the outer ring 15.2 and the inner ring 15.1. The inclined scraping plate 15.8 is matched with the shape of the bottom of the kettle body, and the lower end of the inclined scraping plate 15.8 extends to the lifting type discharging valve 7 at the lower end of the kettle body.

[0042] The inclined scraper 15.8 of the compound paddle 15 and the folded blades cooperate with each other to drive the polyether solid to flow and avoid bottom deposition. The multiple forward and reverse folded blades of the runoff push plate 12, the folded blade paddle disc 14, and the compound paddle 15, together with several propulsion paddles 13 and the draft tube 3, act together to make the liquid flow upward inside the tube and downward outside the tube, greatly improving the mass transfer efficiency, which has a positive impact on improving the dissolution efficiency, preventing local explosion polymerization, and accelerating heat exchange.

[0043] A draft tube 3 is further arranged in the kettle body. The draft tube 3 comprises upper and lower parts. The inner diameter of the draft tube 3 is larger than the rotation circumference of several propulsion paddles 13. The draft tube 3 is fixedly connected to the inner wall of the kettle body through several load-bearing brackets 5. There is a gap between the upper and lower parts of the draft tube 3, and the gap can accommodate the runoff push plate 12 to rotate freely in the space formed by the gap. The draft tube 3 is arranged to form a specified-direction flow guide, so that the materials are fully mixed.

[0044] In the specific production process of the 6C polycarboxylate water reducer, first, according to the formulated operating procedures and process cards, the rated amount of water is added into the reaction kettle through the second liquid inlet 2.1, and then the motor 9 is started to turn on the stirring device. At the same time, 6C polyether is fed through the solid feeding port 1 for pre-stirring (the 6C polyether is configured into an aqueous solution with a concentration of less than 55%. It can be quickly dissolved under the synergistic action of the stirring device). The temperature in the kettle is read, and the high and low temperature integrated machine is started, so that the spherical coil 4 connected to the high and low temperature integrated machine starts to control the temperature. At the beginning, the temperature in the kettle is controlled at 10-15 °C through the spherical coil 4. After the feeding is completed, an initiator is added through the second liquid inlet 2.1 and stirred for 5 minutes. The high and low temperature integrated machine is turned off, and the feeding valve of the first liquid inlet 2 is opened, and materials A and B are started to be dropped through the feeding device 11. The temperature gradually rises as the reaction proceeds. When the dropping of materials A and B is completed, the temperature rises to about 20-25 °C, and the stirring and heat preservation reaction continue for 30 minutes. Then, the bottom lifting discharge valve 7 at the bottom of the kettle is opened for discharging.

[0045] The above is only the specific implementation manner of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by this utility model, according to the technical solution of this utility model and the new concept, makes equivalent substitutions or changes, and should be covered within the protection scope of this utility model.

Claims

1. A production equipment for preparing 6C polycarboxylate water reducer, comprising a kettle body, a kettle cover and a stirring device, characterized in that Also includes The first feeding device and the second feeding device are arranged under the kettle cover, The first material conveying device comprises at least one first material conveying pipe and a plurality of first material distributing pipes, each of the first material distributing pipes is provided with a plurality of material distributing holes, and the plurality of first material distributing pipes are arranged side by side in a transverse manner and are connected to the first material conveying pipe; The second material conveying device includes at least one second material pipe and a plurality of second material distribution pipes, each of the second material distribution pipes is also provided with a plurality of material distribution holes, and the plurality of second material distribution pipes are arranged side by side in a transverse manner and are connected to the second material conveying pipe; A plurality of first material distribution tubes and a plurality of second material distribution tubes are arranged alternately.

2. A production equipment for preparing 6C polycarboxylate water reducer according to claim 1, characterized in that The first material delivery device also includes a fixing frame, the first material delivery pipe is connected to the liquid feed port on the kettle cover and is arranged at the lower end of the kettle cover, one end of the fixing frame is connected to the kettle cover, and the other end of the fixing frame is connected to the first material distribution pipe, one end of the first material distribution pipe close to the kettle body is conductively connected to the lower end of the first material delivery pipe, and a plurality of material distribution holes are opened at equal distances on the lower side of the first material distribution pipe for material distribution; The second material delivery device also includes a fixing frame, the second material delivery pipe is connected to the liquid feed port on the kettle cover and is arranged at the lower end of the kettle cover, one end of the fixing frame is connected to the kettle cover, and the other end of the fixing frame is connected to the second material distribution pipe, one end of the second material distribution pipe close to the kettle body is conductively connected to the lower end of the second material delivery pipe, and a plurality of material distribution holes are opened at equal distances on the lower side of the second material distribution pipe for material distribution; The first material distribution pipe and the second material distribution pipe are provided with a gap near the center of the kettle body.

3. A production equipment for preparing 6C polycarboxylate water reducer according to claim 1, characterized in that It also includes a heat exchange device, which includes a spherical coil arranged on the inner wall of the kettle body, the spherical coil is arranged in a spiral shape, a coil inlet is arranged at the lower part of the kettle body and connected to the coil, and a coil outlet is arranged at the upper part of the kettle body and connected to the coil.

4. A production equipment for preparing 6C polycarboxylate water reducer according to claim 3, characterized in that It also includes a stirring device, which includes a guide tube and an agitator. The guide tube is fixed in the kettle body through a load-bearing bracket. The agitator includes a stirring shaft, which is arranged at the central axis position of the kettle cover and is movably connected. The stirring shaft is fixed with a runoff push plate, a first propeller, a second propeller, a folding blade paddle plate, a third propeller, a fourth propeller and a compound paddle in sequence from top to bottom, and a motor is fixedly connected to the top of the stirring shaft.

5. A production equipment for preparing 6C polycarboxylate water reducer according to claim 3, characterized in that The outside of the kettle body is wrapped with heat-insulating cotton, the inlet and outlet of the heat exchange device are connected to the high and low temperature integrated machine, a lifting type discharge valve is arranged at the bottom of the kettle body, and a temperature sensor is arranged inside the kettle body.

6. A production equipment for preparing 6C polycarboxylate water reducer according to claim 3, characterized in that The spherical coil is composed of a plurality of mutually conductive thin-walled spherical shells, the plurality of thin-walled spherical shells are tangent to each other and sealedly connected to form a fluid channel in the coil.

7. A production equipment for preparing 6C polycarboxylate water reducer according to claim 4, characterized in that: The guide tube of the stirring device is a cylindrical tube structure, and a gap is opened in the middle of the guide tube for the folding blade to pass through.

8. The production equipment for preparing 6C polycarboxylate water reducer according to claim 4, characterized in that: The radial flow push plate comprises an inner ring, an outer ring and curved blades, a gap is formed between the inner ring and the outer ring of the radial flow push plate, and the curved blades are vertically arranged in the gap and fixedly connected to the inner ring and the outer ring of the radial flow push plate; The folding blade paddle disk comprises an inner ring, an outer ring and blades, the outer diameter of the outer ring of the folding blade paddle disk is smaller than the inner diameter of the coil, the inner ring of the folding blade paddle disk is arranged in the gap of the guide tube, the width of the inner ring of the folding blade paddle disk is larger than the thickness of the guide tube, the inner ring and the outer ring of the folding blade paddle disk are fixedly connected by blades, the blades are transversely arranged in the kettle body and vertically connected to the stirring shaft, the blades of the folding blade paddle disk are inclined at an obtuse angle inside the inner ring of the folding blade paddle disk, and the parts of the blades of the folding blade paddle disk in the gap between the outer ring and the inner ring of the folding blade paddle disk are inclined at an acute angle; The first propeller, the second propeller, the third propeller and the fourth propeller are connected to the stirring shaft in an upwardly inclined manner and are staggeredly arranged on the stirring shaft.

9. A production equipment for preparing 6C polycarboxylate water reducer according to claim 4, characterized in that The composite paddle comprises an inner ring and an outer ring which are transversely arranged at the lower part of the kettle body, the outer ring is higher than the inner ring to form a staggered design, the outer ring of the composite paddle is fixedly connected to the stirring shaft via a plurality of transversely arranged folding paddle plates, the inner ring of the composite paddle is fixedly connected to the stirring shaft via a plurality of transversely arranged folding paddle plates, the folding paddle plates of the inner and outer rings of the composite paddle are vertically interconnected via a plurality of load-bearing rods, a plurality of inclined scrapers are circumferentially arranged on the outer sides of the inner and outer rings of the composite paddle, the folding paddle plates of the outer ring of the composite paddle are arranged at the lower part of the guide tube in the kettle body and there is a gap between the folding paddle plates and the lower part of the guide tube.

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