Polycarboxylic acid mother liquor synthesis equipment and synthesis method

Abstract

The invention relates to the technical field of synthesis equipment, and particularly discloses polycarboxylic acid mother liquor synthesis equipment and a synthesis method.The polycarboxylic acid mother liquor synthesis equipment comprises a support, a material barrel and a lifting mechanism, the lifting mechanism is provided with a stirring device and a feeding device, the stirring device comprises a motor, a hollow cylinder, a stirring main rod and a stirring auxiliary rod, and the hollow cylinder comprises a cylinder body and a bottom plate; the feeding device comprises an air pump connected with the hollow cylinder, the auxiliary stirring rods are hollow rods so as to be communicated with the hollow cylinder, the auxiliary stirring rods are rotationally installed on the bottom plate, the lower ends of the auxiliary stirring rods are balls provided with a plurality of horizontal discharging ports, stirring pipes are arranged at the lower ends of the main stirring rods, and the auxiliary stirring rods are rotationally installed in the stirring pipes through the balls. A material spraying opening is formed in the outer wall; a barrel cover is arranged outside the stirring main rod and the stirring auxiliary rod in a sleeving mode, a through hole is formed in the barrel cover, a sliding block is arranged in the through hole, and a spiral groove is formed in the stirring auxiliary rod.

Description

Technical Field

[0001] The invention relates to the technical field of synthesis equipment, and specifically discloses a polycarboxylic acid mother liquor synthesis equipment and a synthesis method. Background Art

[0002] Polycarboxylate water reducer is a concrete additive with high water-reducing performance. It is widely used in engineering construction to improve the workability, mechanical properties and durability of concrete. It belongs to the third generation of high-performance water reducers, and has gradually become the preferred material for preparing modern concrete with its green and high-performance characteristics. When making polycarboxylate water reducer, it is generally necessary to put the raw materials for making polycarboxylate water reducer into a reactor, and then put the additives into the reactor for mixing, and then carry out the subsequent production process.

[0003] The Chinese patent with the announcement number CN115414879B discloses a continuous synthesis device of polycarboxylic acid water-reducing agent, which includes a bracket, a barrel and a lifting mechanism are provided on the bracket, the barrel is used to hold materials, a round frame is installed on the lifting mechanism, a motor is installed on the round frame, a stirring frame is installed on the output shaft of the motor, and the motor drives the stirring frame to rotate to stir the materials in the barrel. An adding mechanism is also installed on the round frame, and the adding mechanism is used to add additives to the barrel. The adding mechanism includes a feeding barrel, and a discharge pipe is connected to the middle of the bottom of the feeding barrel. The bottom end of the discharge pipe runs through the round frame, and the additives in the feeding barrel are discharged to the barrel through the discharge pipe, wherein the barrel is the placement mechanism in the patent.

[0004] In the prior art, additives are dropped on the top of the raw materials, and then the additives and the raw materials are mixed by stirring. However, in actual use, it is found that due to the continuous dropping of additives, there are more additives at the surface of the raw material liquid, and the additives and the raw materials cannot be mixed by stirring in a short time, resulting in the agglomeration of the additives. The additives cannot be fully stirred and sink to the bottom of the barrel to form precipitation, which affects the mixing effect of the raw materials and the additives. Summary of the invention

[0005] The invention provides a polycarboxylic acid mother liquor synthesis device and a synthesis method to solve the technical problem that additives agglomerate, cannot be fully stirred and sink to the bottom of a barrel to form precipitation, thus affecting the mixing effect of raw materials and additives.

[0006] In order to solve the above problems, the present invention provides a polycarboxylic acid mother liquor synthesis equipment adopts the following technical scheme: it includes a bracket, a material barrel and a lifting mechanism, the lifting mechanism is provided with a stirring device and a feeding device, the stirring device includes a motor, a hollow cylinder, a stirring main rod penetrating the hollow cylinder and installed on the motor, and a plurality of stirring auxiliary rods arranged around the stirring main rod, the hollow cylinder includes a cylinder body connected to the feeding device and a bottom plate rotatably installed under the cylinder body, the feeding device includes an air pump connected to the hollow cylinder, each stirring auxiliary rod is a hollow rod connected to the hollow cylinder, and the stirring auxiliary rod rotates around its own axis. It is dynamically installed on the bottom plate, and the lower end is a sphere with several horizontal discharge ports. Four stirring tubes are arranged at the lower end of the stirring main rod. Each stirring auxiliary rod is rotatably installed in the stirring tube through the sphere. A cavity adapted to the sphere is arranged in the stirring tube, and a spray port which penetrates the cavity and is used in conjunction with the horizontal discharge port is arranged on the outer wall. A barrel cover is sleeved on the outside of the stirring main rod and the stirring auxiliary rod, and a through hole is arranged on the barrel cover for the stirring auxiliary rod to pass through, and a sliding block is arranged in the through hole, and a spiral groove for the sliding block to enter is arranged on the stirring auxiliary rod, so that the barrel cover is covered on the material barrel and the stirring auxiliary rod is driven to rotate when the stirring auxiliary rod moves downward.

[0007] The technical effect is as follows: the stirring device is driven to move downward into the material barrel by the lifting mechanism, and when the barrel cover moves to the barrel mouth of the material barrel, it no longer moves downward, and the feeding device feeds the material into the hollow cylinder through the air pump, and the material flows into the stirring auxiliary rod, and the upper end of the stirring auxiliary rod is rotatably installed on the bottom plate, and the ball at the lower end is rotatably installed in the stirring tube. When the stirring main rod and the stirring auxiliary rod pass through the barrel cover and move downward into the material barrel, the slider in the through hole of the barrel cover moves along the spiral groove on the stirring auxiliary rod, driving the stirring auxiliary rod to rotate around its own axis, and at the same time driving the ball at the lower end of the stirring auxiliary rod to rotate in the cavity of the stirring tube, when the horizontal discharge port of the ball coincides with the injection port on the outer wall of the stirring tube, the stirring main rod and the stirring auxiliary rod are rotated. When the stirring tube is in different positions in the material barrel, the spraying dosage of the additive is controlled by adjusting the rotation speed of the stirring auxiliary rod, so that the additive and the raw material can fully react to avoid the precipitation of the additive. The motor drives the stirring main rod to rotate, and then drives the stirring tube to rotate. When the stirring tube rotates, the stirring auxiliary rod installed on the stirring tube also rotates around the stirring main rod with the stirring tube, so that the additive and the raw material are fully stirred, so as to realize stirring while spraying and ensure the mixing effect of the raw material and the additive.

[0008] The present invention also includes the following technical solution: the pitch of the lower end of the spiral groove is smaller than the pitch of the upper end.

[0009] The technical effect is that when the stirring auxiliary rod enters the material barrel, the barrel cover contacts the lower end of the stirring auxiliary rod, driving the stirring auxiliary rod to rotate faster, and the number of times the multiple discharge ports overlap with the spraying port as the stirring auxiliary rod rotates is more, and the dosage of the sprayed additive is also more. As the stirring auxiliary rod goes deeper, the rotation speed of the stirring auxiliary rod gradually slows down, and the number of times the multiple discharge ports overlap with the discharge hole as the stirring auxiliary rod rotates is less, so that the spray amount of the additive gradually decreases. By reasonably controlling the spray dosage of the additive, the mixing effect of the raw materials and the additive is guaranteed.

[0010] The present invention also includes the following technical scheme: a plurality of stirring blades are sequentially mounted on the stirring auxiliary rod in the up-down direction, each stirring blade is located below the barrel cover, springs are pressed between each stirring blade and between the stirring blade and the barrel cover, a protrusion is provided on the stirring blade, and a linear groove for the protrusion to extend into is provided on the stirring auxiliary rod, the groove depth of the linear groove is smaller than the groove depth of the spiral groove, and the width of the protrusion in the up-down direction is larger than the width of the spiral groove.

[0011] The technical effect is that when the auxiliary stirring rod passes through the barrel cover and continues to move downward, the stirring blades located under the barrel cover, under the action of the spring, the protrusions on each stirring blade move from bottom to top along the linear groove on the auxiliary stirring rod, and, with the rotation of the main stirring rod and the auxiliary stirring rod, the stirring blades fully stir the raw materials and additives in the barrel, and the groove depth of the linear groove is smaller than the groove depth of the spiral groove, and the width of the protrusion in the up and down direction is larger than the width of the spiral groove, so as to prevent the slider in the through hole of the barrel cover and the protrusion of the stirring blade from escaping from their respective grooves and entering into each other's grooves, thereby ensuring the stability of sliding.

[0012] The present invention also includes the following technical solution: two barrels are arranged in sequence on the left and right inside the bracket, and strip holes extending left and right are provided on the front and rear sides of the bracket. The two barrels are slidably installed in the strip holes, and a first cylinder is provided between each barrel and the bracket, and the first cylinder is used to drive the barrel to move left and right.

[0013] The technical effect is that: the first cylinder drives the loaded barrel to move to the bottom of the stirring device for stirring and synthesis. After completion, the barrel with the synthesized polycarboxylic acid mother liquor is removed by the first cylinder and the other loaded barrel is moved to the bottom of the stirring device for stirring. The first cylinder continuously switches between the two barrels to continuously synthesize the polycarboxylic acid mother liquor, thereby improving work efficiency.

[0014] The present invention also includes the following technical solution: the lifting mechanism includes two mounting rods installed on the front and rear sides of the bracket, a mounting plate slidably installed on the mounting rods, and a second cylinder driving the mounting plate to slide up and down along the mounting rods.

[0015] The technical effect is that the second cylinder can drive the mounting plate to move up and down along the mounting rod, so as to drive the stirring device to extend into the barrel to stir the raw materials, and the feeding device can add additives while the stirring device is stirring.

[0016] The present invention also includes the following technical solution: the feeding device includes a storage tank installed on the upper surface of the mounting plate, and the storage tank, the air pump and the hollow cylinder are all connected through a pipeline.

[0017] The present invention also includes the following technical solution: the material barrel includes a barrel body, a condenser arranged in the barrel body, and a discharge pipe installed at the bottom of the barrel body, and a solenoid valve is arranged on the discharge pipe.

[0018] The present invention also includes the following technical solution: a plurality of cavities arranged at intervals are arranged in the stirring tube.

[0019] The present invention also includes a method for synthesizing a polycarboxylic acid mother liquor, using the polycarboxylic acid mother liquor synthesis equipment as described above, the synthesis method comprising the following steps: Step 1: Put the raw materials needed to make the polycarboxylate water reducer into the material barrel, and put the additives into the feeding device; Step 2: The lifting mechanism moves the stirring device downward into the material barrel directly below. When the barrel cover is pressed on the barrel mouth, the motor and the air pump are started to feed the material into the hollow cylinder through the air pump. The motor drives the stirring main rod to rotate, which in turn drives the barrel cover and the stirring auxiliary rod to rotate. The stirring main rod and the stirring auxiliary rod pass through the barrel cover and move downward. The cooperation of the slider and the spiral groove drives the stirring auxiliary rod and the ball to rotate. When the discharge port on the sphere coincides with the injection port on the outer wall of the stirring tube, the additive in the hollow cylinder is sprayed into the barrel through the injection port, and the stirring device sprays while moving downward.

[0020] The method has the same technical effect as the polycarboxylic acid mother liquor synthesis equipment: the additive can fully react at the bottom after settling, thereby ensuring the mixing effect of the raw material and the additive.

[0021] The beneficial effects of the present invention are as follows: the stirring device is driven to move downward into the material barrel by the lifting mechanism, and when the barrel cover moves to the barrel mouth of the material barrel, it no longer moves downward, and the feeding device feeds the material into the hollow cylinder through the air pump, and the material flows into the stirring auxiliary rod, and the upper end of the stirring auxiliary rod is rotatably mounted on the bottom plate, and the ball at the lower end is rotatably mounted in the stirring tube, and when the stirring main rod and the stirring auxiliary rod pass through the barrel cover and move downward into the material barrel, the slider in the through hole on the barrel cover moves along the spiral groove on the stirring auxiliary rod, driving the stirring auxiliary rod to rotate around its own axis, and at the same time driving the ball at the lower end of the stirring auxiliary rod to rotate in the cavity of the stirring tube, when the horizontal discharge port of the ball is aligned with the spray port on the outer wall of the stirring tube When they overlap, the additives flowing into the stirring auxiliary rod are sprayed into the barrel through the spray port. As the stirring auxiliary rod rotates faster or slower, the number of times the several discharge ports overlap with the spray port is also different. When the stirring tube is located at different positions in the barrel, the spray dosage of the additive is controlled by adjusting the rotation speed of the stirring auxiliary rod, so that the additive and the raw material can fully react to avoid precipitation of the additive. The motor drives the stirring main rod to rotate, which in turn drives the stirring tube to rotate. When the stirring tube rotates, the stirring auxiliary rod installed on the stirring tube also rotates around the stirring main rod with the stirring tube, so that the additive and the raw material are fully stirred, so as to achieve stirring while spraying and ensure the mixing effect of the raw material and the additive. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] By reading the following detailed description with reference to the accompanying drawings, the above and other objects, features and advantages of the exemplary embodiments of the present invention will become readily understood. In the accompanying drawings, several embodiments of the present invention are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein: Figure 1 It is a three-dimensional diagram of the polycarboxylic acid mother solution synthesis equipment in the present invention; Figure 2 It is a front view of the polycarboxylic acid mother solution synthesis equipment in the present invention; Figure 3 This is a cross-sectional view of the stirring device of the present invention before it is placed into the material barrel; Figure 4 This is a cross-sectional view of the stirring device of the present invention placed in the material barrel; Figure 5 is a three-dimensional diagram of the stirring device in the present invention; Figure 6 A bottom view of the stirring device of the present invention; Figure 7 For the present invention Figure 6 Cross-sectional view of the middle BB; Figure 8 A three-dimensional diagram of the stirring auxiliary rod in the present invention; Fig. 9 is a cross-sectional view of the stirring auxiliary rod in the present invention; Fig.10A top view of the stirring auxiliary rod in the present invention; Fig.11 It is a top view of the barrel cover in the present invention; Fig.12 A three-dimensional diagram of a stirring blade in the present invention; Fig.13 A three-dimensional diagram of the stirring main rod in the present invention; Fig.14 A cross-sectional view of the stirring main rod in the present invention.

[0023] Description of reference numerals: 1. Bracket; 11. Strip hole; 12. Mounting block; 2. Material barrel; 21. Barrel body; 22. Condenser; 23. Discharge pipe; 24. Solenoid valve; 3. Lifting mechanism; 31. Mounting rod; 32. Mounting plate; 33. Second cylinder; 4. Stirring device; 41. Motor; 411. Main shaft; 42. Hollow barrel; 421. Barrel body; 422. Bottom plate; 43. Stirring main rod; 431. Stirring tube; 432, cavity; 433, spray port; 434, installation port; 44, stirring auxiliary rod; 441, sphere; 442, discharge port; 443, spiral groove; 444, spring; 445, stirring blade; 446, bump; 447, linear groove; 45, barrel cover; 451, through hole; 452, slider; 5, feeding device; 51, storage tank; 52, air pump; 53, pipeline; 6, first cylinder. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Those skilled in the art should know that the embodiments described below are part of the embodiments of the present disclosure, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present invention.

[0025] In the description of the present invention, unless otherwise expressly specified and limited, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance; unless otherwise specified or explained, the term "plurality" refers to two or more; the terms "connected" and "fixed" should be understood in a broad sense, for example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances. In the present invention, if Figure 1 As shown, the length direction of the bracket 1 is defined as left and right, the width direction is front and back, and the height direction is up and down. This definition is only for the convenience of understanding and does not have any special meaning.

[0026] Specific embodiment of polycarboxylic acid mother liquor synthesis equipment: like Figure 1-Figure 2 As shown, the present invention provides a polycarboxylic acid mother liquor synthesis device, including a support 1, a barrel 2, a lifting mechanism 3, a stirring device 4, a feeding device 5, and a first cylinder 6. In this embodiment, the barrel 2 is slidably mounted at the middle position of the support 1, the lifting mechanism 3 is arranged on the front and rear sides of the support 1, the stirring device 4 and the feeding device 5 are both mounted on the lifting mechanism 3, and the first cylinder 6 is mounted on the front and rear sides of the support 1. The first cylinder 6 can drive the barrel 2 to slide left and right along the support 1, so as to move the barrel 2 to the bottom of the stirring device 4, and the lifting mechanism 3 moves the stirring device 4 down to the barrel 2 to stir the raw materials. The feeding device 5 is used to provide additives to the raw materials. The feeding device 5 is connected to the stirring device 4, so that the feeding device 5 can add additives through the stirring device 4, so as to realize stirring and adding, avoid precipitation of the additives, and ensure the mixing effect of the raw materials and the additives. At the same time, stirring and adding can also avoid the crystallization of the inner wall of the barrel 2 when the additives are added above the stirring device 4, or even sprinkled on the outside of the barrel 2.

[0027] Specifically, Figure 1 and Figure 2 As shown, the bracket 1 is a frame structure with an installation space reserved in the middle for placing the barrel 2. Strip holes 11 are also provided on the side walls on the front and rear sides of the bracket 1. The barrel 2 is slidably installed in the strip holes 11, and one end of the first cylinder 6 is installed on the mounting blocks 12 extending from the front and rear sides of the bracket 1, and the other end is connected to the barrel 2. The first cylinder 6 can drive the barrel 2 to slide left and right along the strip hole 11, so as to facilitate moving the barrel 2 to be directly below the stirring device 4.

[0028] like Figure 1-Figure 3 As shown, the material barrel 2 includes a barrel body 21, a condenser 22, a discharge pipe 23, and a solenoid valve 24. The condenser 22 is installed at the lower end of the barrel body 21. Through the rapid cooling and temperature control of the raw materials and additives, not only the performance and quality of the product are guaranteed, but also the efficiency and safety of production are improved. The discharge pipe 23 is installed at the bottom of the barrel body 21, and is mainly used to discharge and store the synthesized polycarboxylic acid mother liquor. The solenoid valve 24 is installed on the discharge pipe 23 to control the discharge rate of the discharge pipe 23. Among them, the number of barrels 2 is two, and the two barrels 2 are slidably installed in the strip hole 11 of the bracket 1. During actual production, one of the two barrels 2 is moved to the bottom of the stirring device 4 by the first cylinder 6, and then the lifting mechanism 3 is started to move the stirring device 4 downward to the barrel 2 to stir and synthesize the raw materials, and then the barrel 2 that has completed stirring is removed by the first cylinder 6, and the other filled barrel 2 is moved to the bottom of the stirring device 4. By continuously switching the two barrels 2 by the first cylinder 6, the polycarboxylic acid mother liquor can be continuously synthesized to improve work efficiency.

[0029] like Figure 1 As shown, the lifting mechanism 3 includes a mounting rod 31, a mounting plate 32, and a second cylinder 33. The mounting rod 31 is mounted on the front and rear sides of the bracket 1. The mounting plate 32 and the second cylinder 33 are both mounted on the mounting rod 31. The mounting plate 32 is used to mount the stirring device 4 and the feeding device 5. The bottom of the second cylinder 33 is mounted on the mounting rod 31, and the top is connected to the mounting plate 32. The second cylinder 33 can drive the mounting plate 32 to move up and down along the mounting rod 31, so as to drive the stirring device 4 to extend into the barrel 2 to stir the raw materials. The feeding device 5 adds additives while the stirring device 4 stirs. The stirring and mixing effect of the raw materials and additives is ensured.

[0030] like Figure 1-Figure 7 As shown, the stirring device 4 includes a motor 41, a hollow cylinder 42, a stirring main rod 43, a stirring auxiliary rod 44, and a barrel cover 45. The motor 41 and the hollow cylinder 42 are respectively installed on the upper and lower sides of the mounting plate 32, as shown in FIG. Figure 7 As shown, the stirring main rod 43 passes through the hollow cylinder 42 and is installed on the main shaft 411 of the motor 41. Four stirring tubes 431 are provided at the lower end of the stirring main rod 43. The motor 41 drives the stirring main rod 43 to rotate. There is a through hole in the middle of the hollow cylinder 42 for the stirring main rod 43 to pass through, and the stirring main rod 43 can rotate in the through hole of the hollow cylinder 42. The hollow cylinder 42 is connected to the feeding device 5 to facilitate the feeding device 5 to flow the additive into the hollow cylinder 42.

[0031] like Figure 1-Figure 3 As shown, the hollow cylinder 42 includes a cylinder body 421 and a bottom plate 422, the cylinder body 421 is connected to the feeding device 5, the bottom plate 422 is rotatably mounted on the cylinder body 421, and a plurality of stirring auxiliary rods 44 arranged at intervals around the stirring main rod 43 are rotatably mounted on the bottom plate 422 around their own axes, so that the stirring auxiliary rods 44 can rotate relative to the bottom plate 422, and can also drive the bottom plate 422 to rotate around the stirring main rod 43. Each stirring auxiliary rod 44 is a hollow rod and the upper end is connected to the hollow cylinder 42. The hollow cylinder 42 can flow additives into the stirring auxiliary rod 44. Please refer to Figure 7-10 and Figure 13-14As shown, the lower end of the stirring auxiliary rod 44 is a sphere 441 with several horizontal discharge ports 442. Each stirring auxiliary rod 44 is rotatably installed in the stirring tube 431 at the lower end of the stirring main rod 43 through the sphere 441. A cavity 432 adapted to the sphere 441 is provided in the stirring tube 431. A spray port 433 that penetrates the cavity 432 and cooperates with the horizontal discharge port 442 is provided on the outer wall of the stirring tube 431. When the horizontal discharge port 442 coincides with the spray port 433, the additive flowing into the stirring auxiliary rod 44 is sprayed into the barrel 2 through the spray port 433. In this embodiment, the stirring tube 431 has four intervals installed at the lower end of the stirring main rod 43, and each stirring tube 431 is rotatably installed with two A stirring auxiliary rod 44 is provided, and an installation port 434 for the stirring auxiliary rod 44 to pass through is provided on the upper wall surface of the stirring tube 431. A plurality of cavities 432 arranged at intervals are provided in the stirring tube 431. A sphere 441 is rotatably installed in each cavity 432. Four discharge ports 442 are opened on the sphere 441. A spray port 433 connected with the cavity 432 is provided on the outer wall of the stirring tube 431. One spray port 433 is used in conjunction with the four discharge ports 442. When the sphere 441 rotates in the cavity 432 of the stirring tube 431, the four horizontal discharge ports 442 overlap with the spray port 433 alternately. By controlling the rotation speed of the stirring auxiliary rod 44, the amount of additive added can be reasonably controlled.

[0032] like Figure 1 , Figure 8 , Fig.11As shown, the barrel cover 45 is sleeved on the outside of the stirring main rod 43 and the stirring auxiliary rod 44, and a through hole 451 is provided on the barrel cover 45 for the stirring auxiliary rod 44 to pass through, and a slider 452 is provided in the through hole 451, and a spiral groove 443 for the slider 452 to enter is provided on the rod body of the stirring auxiliary rod 44. When the barrel cover 45 is covered on the material barrel 2, the slider 452 slides in the spiral groove 443 when the stirring auxiliary rod 44 moves downward, thereby driving the stirring auxiliary rod 44 to rotate, and then driving the ball 441 located at the lower end of the stirring auxiliary rod 44 to rotate, so that the horizontal discharge port 442 on the ball 441 coincides with the injection port 433 during the rotation to spray material. In this embodiment, the pitch of the lower end of the spiral groove 443 is smaller than the pitch of the upper end, so that the stirring rod 44 rotates quickly when it first passes through the barrel cover 45 and goes downward. The four discharge ports 442 of the sphere 441 overlap with the injection port 433 more times as the stirring rod 44 rotates, so that when the stirring device 4 just enters the top of the raw material, the most additives are sprayed out. As the stirring device 4 goes deeper, the spacing of the spiral groove 443 on which the slider 452 of the barrel cover 45 slides becomes larger, so that the travel path of the slider 452 becomes longer, and the rotation speed of the stirring rod 44 gradually slows down. The four discharge ports 442 overlap with the injection port 433 less times as the stirring rod 44 rotates, so that the amount of additive sprayed gradually decreases, and the spraying dosage of the additive is reasonably controlled to ensure that the concentration of the additive in the raw materials in the upper and lower parts of the barrel 2 remains consistent, thereby ensuring the mixing effect of the raw materials and the additives.

[0033] like Figure 3 , Figure 4 , Figure 7 , Figure 8 and Fig.12 As shown, a plurality of stirring blades 445 are sequentially mounted on the stirring auxiliary rod 44 in the up-down direction, and the plurality of stirring blades 445 are all located below the barrel cover 45, and springs 444 are pressed between each stirring blade 445 and between the stirring blade 445 and the barrel cover 45, and a protrusion 446 is provided on the stirring blade 445, and a linear groove 447 for the protrusion 446 to extend into is provided on the stirring auxiliary rod 44, as shown in FIG. Figure 3 As shown, before the stirring auxiliary rod 44 enters the material barrel 2, the multiple stirring blades 445 are squeezed at the lower end of the stirring auxiliary rod 44 by the barrel cover 45. As the stirring auxiliary rod 44 moves downward, the multiple stirring blades 445 move upward in the linear groove 447 through the protrusion 446 under the action of the spring 444, and the multiple stirring blades 445 are spread out upward. Under the rotation of the stirring auxiliary rod 44, the multiple stirring blades 445 are driven to rotate, so as to fully stir the raw materials and additives, thereby further ensuring the mixing effect of the raw materials and additives.

[0034] In this embodiment, the groove depth of the straight groove 447 is smaller than the groove depth of the spiral groove 443, and the width of the protrusion 446 in the up and down directions is larger than the width of the spiral groove 443, so as to prevent the protrusion 446 of the stirring blade 445 from leaving the track of the straight groove 447 and entering the track of the spiral groove 443 when moving in the straight groove 447.

[0035] like Figure 1-Figure 4 As shown, the feeding device 5 includes a storage tank 51, an air pump 52, and a pipeline 53. The storage tank 51 is used to store additives, and the air pump 52 is used to blow the additives in the storage tank 51 into the hollow cylinder 42 through air pressure. The storage tank 51 and the air pump 52 are respectively installed on the upper surface and the lower surface of the mounting plate 32. The storage tank 51, the air pump 52 and the hollow cylinder 42 are connected by the pipeline 53 to ensure the circulation of the additives.

[0036] Specific embodiment of the polycarboxylic acid mother solution synthesis method: like Figure 1-Figure 4 As shown, this embodiment provides a method for synthesizing a polycarboxylic acid mother liquor, which is applied to the polycarboxylic acid mother liquor synthesis equipment in the above embodiment, and the synthesis method comprises the following steps: Step 1: Put the raw materials needed to prepare the polycarboxylate water-reducing agent into the material barrel 2, and put the additives into the feeding device 5; Step 2: The lifting mechanism 3 moves the stirring device 4 downward into the material barrel 2 directly below. When the barrel cover 45 is pressed on the barrel mouth of the material barrel 2, the motor 41 and the air pump 52 are started, and the material is fed into the hollow cylinder 42 through the air pump 52. The motor 41 drives the stirring main rod 43 to rotate, thereby driving the barrel cover 45 and the stirring auxiliary rod 44 to rotate. The stirring main rod 43 and the stirring auxiliary rod 44 pass through the barrel cover 45 and move downward. The cooperation of the slider 452 and the spiral groove 443 drives the sphere 441 of the stirring auxiliary rod 44 to rotate. When the discharge port 442 on the sphere 441 coincides with the injection port 433 on the outer wall of the stirring tube 431, the additive in the hollow cylinder 42 is sprayed into the material barrel 2 through the injection port 433, and the material is sprayed while the stirring device 4 moves downward. The synthesis method ensures the mixing effect of the raw materials and the additives, and improves the synthesis efficiency of the polycarboxylic acid mother liquor.

[0037] According to the above description of this specification, those skilled in the art may also understand that the terms used below, such as "up", "down", "front", "back", "left", "right", "width", "horizontal", "top", "bottom", "inside", "outside" and the like, which indicate orientation or positional relationships, are based on the orientation or positional relationships shown in the drawings of this specification, and are only for the purpose of facilitating the explanation of the scheme of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the devices or elements involved must have the specific orientation, be constructed and operated in a specific orientation. Therefore, the above-mentioned orientation or positional relationship terms cannot be understood or interpreted as limitations on the scheme of the present invention.

[0038] In addition, in the description of this specification, “plurality” means at least two, for example, two, three or more, etc., unless otherwise clearly and specifically defined.

Claims

1. A polycarboxylic acid mother liquor synthesis device, comprising a bracket, a barrel and a lifting mechanism, characterized in that: The lifting mechanism is provided with a stirring device and a feeding device. The stirring device comprises a motor, a hollow cylinder, a stirring main rod penetrating the hollow cylinder and mounted on the motor, and several stirring auxiliary rods arranged around the stirring main rod. The hollow cylinder comprises a cylinder body connected to the feeding device and a bottom plate rotatably mounted below the cylinder body. The feeding device comprises an air pump connected to the hollow cylinder. Each stirring auxiliary rod is a hollow rod connected to the hollow cylinder. The stirring auxiliary rod is rotatably mounted on the bottom plate around its own axis. The lower end is a sphere provided with several horizontal discharge ports. Four stirring tubes are provided at the lower end of the stirring main rod. Each stirring auxiliary rod is rotatably mounted in the stirring tube through the sphere. A cavity adapted to the sphere is provided in the stirring tube. A spray port penetrating the cavity and used in conjunction with the horizontal discharge port is provided on the outer wall. A barrel cover is sheathed on the outside of the stirring main rod and the stirring auxiliary rod. A through hole is provided on the barrel cover for the stirring auxiliary rod to pass through. A slider is provided in the through hole. A spiral groove is provided on the stirring auxiliary rod for the slider to enter, so that the barrel cover is covered on the barrel and the stirring auxiliary rod is driven to rotate when the stirring auxiliary rod moves downward.

2. The polycarboxylic acid mother liquor synthesis equipment according to claim 1, characterized in that: The pitch of the lower end of the spiral groove is smaller than the pitch of the upper end.

3. The polycarboxylic acid mother liquor synthesis equipment according to claim 2, characterized in that: A plurality of stirring blades are sequentially mounted on the stirring auxiliary rod in the up-down direction, each stirring blade is located below the barrel cover, springs are pressed between each stirring blade and between the stirring blade and the barrel cover, a protrusion is provided on the stirring blade, and a linear groove for the protrusion to extend into is provided on the stirring auxiliary rod, the groove depth of the linear groove is less than the groove depth of the spiral groove, and the width of the protrusion in the up-down direction is greater than the width of the spiral groove.

4. The polycarboxylic acid mother liquor synthesis equipment according to claim 1, characterized in that: Two barrels are arranged in sequence on the left and right in the bracket, and strip holes extending left and right are provided on the front and rear sides of the bracket. Both barrels are slidably installed in the strip holes, and a first cylinder is provided between each barrel and the bracket, and the first cylinder is used to drive the barrel to move left and right.

5. The polycarboxylic acid mother liquor synthesis equipment according to claim 1, characterized in that: The lifting mechanism comprises two mounting rods mounted on the front and rear sides of the bracket, a mounting plate slidably mounted on the mounting rods, and a second cylinder driving the mounting plate to slide up and down along the mounting rods.

6. The polycarboxylic acid mother liquor synthesis equipment according to claim 5, characterized in that: The feeding device comprises a storage tank installed on the upper surface of the mounting plate, and the storage tank, the air pump and the hollow cylinder are all connected through a pipeline.

7. The polycarboxylic acid mother liquor synthesis equipment according to any one of claims 1 to 6, characterized in that: The material barrel comprises a barrel body, a condenser arranged in the barrel body and a discharge pipe installed at the bottom of the barrel body, and a solenoid valve is arranged on the discharge pipe.

8. The polycarboxylic acid mother liquor synthesis equipment according to any one of claims 1 to 6, characterized in that: A plurality of cavities arranged at intervals are arranged in the stirring tube.

9. A method for synthesizing a polycarboxylic acid mother solution, characterized in that: Using the polycarboxylic acid mother solution synthesis equipment as claimed in claim 1, the synthesis method comprises the following steps: Step 1: Put the raw materials needed to make the polycarboxylate water reducer into the material barrel, and put the additives into the feeding device; Step 2: The lifting mechanism moves the stirring device downward into the material barrel directly below. When the barrel cover is pressed on the barrel mouth, the motor and the air pump are started to feed the material into the hollow cylinder through the air pump. The motor drives the stirring main rod to rotate, thereby driving the barrel cover and the stirring auxiliary rod to rotate. The stirring main rod and the stirring auxiliary rod pass through the barrel cover and move downward. The cooperation of the slider and the spiral groove drives the ball of the stirring auxiliary rod to rotate. When the discharge port on the ball coincides with the injection port on the outer wall of the stirring tube, the additive in the hollow cylinder is sprayed into the barrel through the injection port, and the stirring device sprays while moving downward.

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