A cooling device for a reaction vessel used in the preparation of polycarboxylate superplasticizer

Abstract

This utility model discloses a cooling device for a polycarboxylate superplasticizer preparation reactor, relating to the field of polycarboxylate superplasticizer preparation technology. The utility model includes a reactor body with a baffle strip fixed to the bottom of its outer wall; a water collection tank fitted onto the outer wall of the reactor body, with a sealing strip fixed to its inner ring; a positioning plate fixed to the bottom of the reactor body, with threaded pipes fixed to both sides of the positioning plate; and a fixing plate fixed to the bottom of the water collection tank, with a through hole on its surface and a positioning rod passing through the through hole. This utility model utilizes the annular tube, which can move up and down around the reactor body, allowing the coolant to be evenly sprayed onto different positions on the outer wall of the reactor. This avoids the problems of insufficient or excessive cooling in certain areas, ensuring that all parts of the reactor body receive sufficient and even cooling, guaranteeing uniform temperature distribution within the reactor, and facilitating the stable progress of the polycarboxylate superplasticizer preparation reaction.

Description

Technical Field

[0001] This utility model belongs to the field of polycarboxylate superplasticizer preparation technology, and in particular relates to a cooling device for a polycarboxylate superplasticizer preparation reactor. Background Technology

[0002] Polycarboxylate superplasticizer is a high-performance concrete admixture widely used in modern construction engineering. Its main function is to improve the workability, strength, and durability of concrete by dispersing cement particles. Due to its excellent water-reducing properties and environmentally friendly characteristics, polycarboxylate superplasticizer has gradually replaced traditional naphthalene-based and melamine-based superplasticizers, becoming the mainstream product in the market. The preparation of polycarboxylate superplasticizer typically employs free radical polymerization, with main raw materials including unsaturated carboxylic acid monomers, polyethylene glycol and its derivatives, and initiators. The reaction process is usually carried out under high-temperature conditions to promote the generation of free radicals and the polymerization reaction.

[0003] In the preparation of polycarboxylate superplasticizers, temperature control is crucial. Existing cooling technologies mainly employ jacketed cooling or external circulation cooling. Jacketed cooling involves circulating a cooling medium through a jacket installed outside the reactor. While simple and easy to implement, this method has low cooling efficiency and can easily lead to uneven temperature distribution within the reactor. External circulation cooling, on the other hand, involves pumping the reactants to an external heat exchanger for cooling before returning them to the reactor. This method has a complex cooling system, high operating costs, and a risk of leakage.

[0004] To address this issue, we provide a cooling device for the reaction vessel used in the preparation of polycarboxylate superplasticizers. Utility Model Content

[0005] The purpose of this invention is to provide a cooling device for a polycarboxylate superplasticizer preparation reactor. Through the action of the annular tube, which can move up and down around the reactor body, the coolant can be evenly sprayed on different positions on the outer wall of the reactor, avoiding the problems of insufficient or excessive cooling in certain areas. This ensures that all parts of the reactor body can be cooled sufficiently and evenly, ensuring uniform temperature distribution inside the reactor. This is beneficial to the stable progress of the polycarboxylate superplasticizer preparation reaction and solves the problems of low efficiency, uneven temperature distribution, system complexity, high operating cost, and leakage risk of existing cooling methods.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution: This utility model is a cooling device for a polycarboxylate superplasticizer preparation reactor, including a reactor body, and a baffle is fixed to the bottom of the outer wall of the reactor body;

[0007] A water collection tank is fitted onto the outer wall of the reactor body, and a sealing strip is fixed to the inner ring of the water collection tank;

[0008] A positioning plate is fixed to the bottom of the reactor body, and threaded pipes are fixed to both sides of the positioning plate;

[0009] A fixing plate is fixed to the bottom of the water collection tank. A through hole is opened on the surface of the fixing plate, and a positioning rod passes through the through hole.

[0010] One end of the positioning rod is fixed with a threaded rod, and the threaded rod is threadedly connected to the threaded pipe;

[0011] The bottom of the reactor body is fixed with a base, and a first motor is fixed to one side of the base. A transmission plate is fixed to the output shaft of the first motor.

[0012] A transmission block is fixed to the side of the transmission plate near the reactor body. An adjustment shell is sleeved on the outside of the transmission block, and a connecting rod is fixed to the top of the adjustment shell.

[0013] A connecting plate is fixed to one end of the connecting rod, and several annular pipes are fixed to one side of the connecting plate. Several water outlets are fixed to the inner ring of the annular pipes.

[0014] The present invention is further configured such that: one end of the annular pipe is fixed with a water inlet pipe, and one end of the water inlet pipe is fixed with a first water pump;

[0015] The water inlet of the first water pump is connected to a water storage tank via a first connecting pipe;

[0016] The annular pipe is connected to several water outlets.

[0017] The present invention is further configured such that: a water outlet pipe is fixed at one end of the water collection tank, and a second water pump is fixed at one end of the water outlet pipe;

[0018] The outlet of the second water pump is connected to a water collection tank via a second connecting pipe.

[0019] The present invention is further configured such that: a support rod is fixed to the top of the base, and a limit ring is fixed to one end of the support rod;

[0020] The end of the connecting rod away from the adjusting shell passes through the limiting ring.

[0021] The present invention is further configured such that a top cover is bolted to the top of the reactor body;

[0022] A second motor is fixed to the top of the top cover, and the output shaft of the second motor is fixed to the main drive shaft;

[0023] An auxiliary drive shaft is fixed to the outside of the main drive shaft.

[0024] The present invention is further configured such that: limit grooves are opened on both sides of the inner wall of the reactor body;

[0025] A limiting strip is slidably connected inside the limiting groove, and a fixing ring is fixed on one side of the limiting strip.

[0026] The present invention is further configured such that: an extension plate is fixed to the inner wall of the fixing ring, and a fixing rod is fixed to the top of the extension plate;

[0027] Several stirring plates are fixed to the outside of the fixed rod, the main drive shaft and the auxiliary drive shaft.

[0028] The stirring plates are inclined and do not contact each other.

[0029] This utility model has the following beneficial effects:

[0030] 1. This utility model utilizes the function of an annular tube, which can move up and down around the reactor body, allowing the coolant to be sprayed evenly on different positions on the outer wall of the reactor. This avoids the problem of insufficient or excessive cooling in certain areas, ensuring that all parts of the reactor body receive sufficient and even cooling, thus ensuring uniform temperature distribution inside the reactor and facilitating the stable progress of the polycarboxylate superplasticizer preparation reaction.

[0031] 2. This utility model utilizes the action of the stirring plate. The rotation of the stirring plate accelerates the flow of polycarboxylate superplasticizer within the reactor body. Coolant is sprayed out from the outlet of the annular pipe to cool the outer wall of the reactor. The rapid flow of the internal materials allows heat to be transferred to the reactor wall more quickly and then carried away by the coolant, greatly improving the cooling efficiency. At the same time, the flow of materials also avoids abnormal reactions caused by excessively high local temperatures, ensuring a uniform temperature drop. Attached Figure Description

[0032] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the cooling device for a reaction vessel used in the preparation of a polycarboxylate superplasticizer according to this utility model.

[0034] Figure 2 This is a side view structural diagram of the present invention.

[0035] Figure 3 This is a schematic diagram of one side of the transmission plate of this utility model.

[0036] Figure 4 This is a schematic diagram of the bottom structure of this utility model.

[0037] Figure 5This is a schematic diagram of the reaction vessel body structure of this utility model.

[0038] Figure 6 This is a schematic diagram of the reactor body and top cover structure of this utility model.

[0039] Figure 7 This is a schematic diagram of the internal structure of the reaction vessel body of this utility model.

[0040] Figure 8 This is a schematic diagram of the top cover structure of this utility model.

[0041] Figure 9 This is a schematic diagram of the fixing ring structure of this utility model.

[0042] Figure 10 This is a schematic diagram of the water collection tank structure of this utility model.

[0043] Figure 11 This is a schematic diagram of the annular tube structure of this utility model.

[0044] The attached diagram lists the components represented by each number as follows:

[0045] 1-Reaction vessel body, 2-Baffle bar, 3-Water collection tank, 4-Sealing strip, 5-Positioning plate, 6-Threaded pipe, 7-Fixing plate, 8-Through hole, 9-Positioning rod, 10-Threaded rod, 11-Base, 12-First motor, 13-Transmission plate, 14-Transmission block, 15-Adjusting shell, 16-Connecting rod, 17-Connecting plate, 18-Annular pipe, 19-Outlet, 20-Inlet pipe, 21-First water pump, 22-Water storage tank, 23-Outlet pipe, 24-Second water pump, 25-Water collection tank, 26-Support rod, 27-Limiting ring, 28-Top cover, 29-Second motor, 30-Main drive shaft, 31-Auxiliary drive shaft, 32-Limiting groove, 33-Limiting strip, 34-Fixing ring, 35-Extension plate, 36-Fixing rod, 37-Stirring plate. Detailed Implementation

[0046] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0047] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0048] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model. Specific Implementation Example 1

[0050] Please see Figure 1-11 This utility model relates to a cooling device for a polycarboxylate superplasticizer preparation reactor, comprising a reactor body 1, a baffle 2 fixed to the bottom of the outer wall of the reactor body 1; a water collection tank 3 sleeved on the outer wall of the reactor body 1, a sealing strip 4 fixed to the inner ring of the water collection tank 3; a positioning plate 5 fixed to the bottom of the reactor body 1, threaded pipes 6 fixed to both sides of the positioning plate 5; a fixing plate 7 fixed to the bottom of the water collection tank 3, a through hole 8 on the surface of the fixing plate 7, a positioning rod 9 passing through the through hole 8; a threaded rod 10 fixed to one end of the positioning rod 9. 10 is threadedly connected to the threaded pipe 6; a base 11 is fixed at the bottom of the reactor body 1, a first motor 12 is fixed on one side of the base 11, and a transmission plate 13 is fixed to the output shaft of the first motor 12; a transmission block 14 is fixed on the side of the transmission plate 13 near the reactor body 1, an adjusting shell 15 is sleeved on the outside of the transmission block 14, and a connecting rod 16 is fixed at the top of the adjusting shell 15; a connecting plate 17 is fixed at one end of the connecting rod 16, and several annular pipes 18 are fixed on one side of the connecting plate 17, and several water outlets 19 are fixed in the inner ring of the annular pipes 18.

[0051] Specifically, an inlet pipe 20 is fixed to one end of the annular pipe 18, and a first water pump 21 is fixed to one end of the inlet pipe 20; the inlet end of the first water pump 21 is connected to a water storage tank 22 through a first connecting pipe; the annular pipe 18 is connected to several outlets 19; an outlet pipe 23 is fixed to one end of the water collection tank 3, and a second water pump 24 is fixed to one end of the outlet pipe 23; the outlet end of the second water pump 24 is connected to a water collection tank 25 through a second connecting pipe.

[0052] Furthermore, a support rod 26 is fixed to the top of the base 11, and a limit ring 27 is fixed to one end of the support rod 26; the end of the connecting rod 16 away from the adjusting shell 15 passes through the limit ring 27.

[0053] The operation process of this embodiment is as follows: When using this device, the water collection tank 3 is fitted onto the outer wall of the reactor body 1, the positioning rod 9 passes through the through hole 8 of the fixing plate 7, and the threaded rod 10 is rotated to connect with the threaded pipe 6 to ensure that the water collection tank 3 is installed firmly. At the same time, the sealing strip 4 is tightly attached to the outer wall of the reactor body 1 to prevent water leakage. The first water pump 21 is started, and the coolant in the water storage tank 22 enters the annular pipe 18 through the first connecting pipe and the inlet pipe 20, and then sprays out from the outlet 19 to cool the reactor body 1. At the same time, the first motor 12 is started, and its output shaft drives the transmission plate 13 to rotate. The transmission block 14 on the transmission plate 13 rotates accordingly. Since the transmission block 14 is fitted into the adjusting shell 15, the adjusting shell 15 will be driven by the transmission block 14 to rotate through the connecting pipe 13. The connecting rod 16 and connecting plate 17 cause the annular pipe 18 to move in a circular motion around the reactor body 1, thereby spraying the coolant more evenly on the outer wall of the reactor body 1 and improving the cooling effect. During the cooling process, the coolant will flow into the water collection tank 3. The second water pump 24 is started to transport the coolant in the water collection tank 3 to the water collection tank 25 through the water outlet pipe 23 and the second connecting pipe, realizing the recycling of the coolant. The annular pipe 18 can move up and down around the reactor body 1, which can make the coolant evenly sprayed on different positions on the outer wall of the reactor, avoiding the problem of insufficient or excessive cooling in some areas. This ensures that all parts of the reactor body 1 can be cooled sufficiently and evenly, ensuring that the temperature distribution inside the reactor is uniform, which is conducive to the stable progress of the polycarboxylate superplasticizer preparation reaction. Specific Implementation Example 2

[0055] Please see Figure 6-9 Based on the first specific embodiment, the top of the reactor body 1 is connected to the top cover 28 by bolts; the top of the top cover 28 is fixed with a second motor 29, and the output shaft of the second motor 29 is fixed with a main drive shaft 30; an auxiliary drive shaft 31 is fixed to the outside of the main drive shaft 30.

[0056] Specifically, limit grooves 32 are opened on both sides of the inner wall of the reactor body 1; limit strips 33 are slidably connected inside the limit grooves 32, and a fixing ring 34 is fixed on one side of the limit strips 33.

[0057] Furthermore, an extension plate 35 is fixed to the inner wall of the fixing ring 34, and a fixing rod 36 is fixed to the top of the extension plate 35; several stirring plates 37 are fixed to the outer sides of the fixing rod 36, the main drive shaft 30 and the auxiliary drive shaft 31; the stirring plates 37 are inclined and do not contact each other; the stirring plates 37 are staggered on different shafts to avoid interference.

[0058] The operation process of this embodiment is as follows: When processing polycarboxylate superplasticizer using this device, open the top cover 28, add the raw materials required for the preparation of polycarboxylate superplasticizer into the reactor body 1, close the top cover 28, start the second motor 29, and its output shaft drives the main drive shaft 30 to rotate. The main drive shaft 30 drives the auxiliary drive shaft 31 to rotate. At the same time, the stirring plates 37 on the fixed rod 36, the main drive shaft 30, and the auxiliary drive shaft 31 rotate accordingly. Since the stirring plates 37 are inclined and do not contact each other, they can fully stir the materials in the reactor during the rotation process, so that the materials are mixed evenly. When cooling the reactor body 1, the rotation of the stirring plates 37 can accelerate the flow of polycarboxylate superplasticizer in the reactor body 1. The coolant is sprayed out from the outlet 19 of the annular pipe 18 to cool the outer wall of the reactor. The rapid flow of the internal materials can transfer heat to the reactor wall more quickly and then be carried away by the coolant, which greatly improves the cooling efficiency. At the same time, the flow of materials also avoids abnormal reaction caused by local overheating and ensures uniform temperature drop.

[0059] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0060] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A cooling device for a reaction vessel used in the preparation of polycarboxylate superplasticizer, comprising a reaction vessel body (1), characterized in that: A baffle (2) is fixed to the bottom of the outer wall of the reactor body (1); The outer wall of the reactor body (1) is fitted with a water collection tank (3), and a sealing strip (4) is fixed to the inner ring of the water collection tank (3). The bottom of the reactor body (1) is fixed with a positioning plate (5), and threaded pipes (6) are fixed on both sides of the positioning plate (5). The bottom of the water collection tank (3) is fixed with a fixing plate (7), and the surface of the fixing plate (7) has a through hole (8), and a positioning rod (9) passes through the through hole (8). One end of the positioning rod (9) is fixed with a threaded rod (10), and the threaded rod (10) is threadedly connected to the threaded tube (6). The bottom of the reactor body (1) is fixed with a base (11), and a first motor (12) is fixed on one side of the base (11). The output shaft of the first motor (12) is fixed with a transmission plate (13). The transmission plate (13) is fixed with a transmission block (14) on the side close to the reactor body (1). An adjustment shell (15) is sleeved on the outside of the transmission block (14). A connecting rod (16) is fixed at the top of the adjustment shell (15). One end of the connecting rod (16) is fixed with a connecting plate (17), and a number of annular pipes (18) are fixed on one side of the connecting plate (17). A number of water outlets (19) are fixed in the inner ring of the annular pipes (18).

2. The cooling device for the reaction vessel used in the preparation of polycarboxylate superplasticizer according to claim 1, characterized in that, One end of the annular pipe (18) is fixed with a water inlet pipe (20), and one end of the water inlet pipe (20) is fixed with a first water pump (21). The water inlet of the first water pump (21) is connected to a water storage tank (22) through a first connecting pipe. The annular pipe (18) is connected to several outlets (19).

3. The cooling device for the reaction vessel used in the preparation of polycarboxylate superplasticizer according to claim 1, characterized in that, One end of the water collection tank (3) is fixed with a water outlet pipe (23), and one end of the water outlet pipe (23) is fixed with a second water pump (24). The outlet of the second water pump (24) is connected to a water collection tank (25) via a second connecting pipe.

4. The cooling device for the reaction vessel used in the preparation of polycarboxylate superplasticizer according to claim 1, characterized in that, A support rod (26) is fixed to the top of the base (11), and a limit ring (27) is fixed to one end of the support rod (26). The end of the connecting rod (16) away from the adjusting shell (15) passes through the limiting ring (27).

5. The cooling device for the reaction vessel used in the preparation of polycarboxylate superplasticizer according to claim 1, characterized in that, The top of the reactor body (1) is bolted to a top cover (28); The top of the top cover (28) is fixed with a second motor (29), and the output shaft of the second motor (29) is fixed with a main drive shaft (30). An auxiliary drive shaft (31) is fixed to the outside of the main drive shaft (30).

6. The cooling device for the reaction vessel used in the preparation of polycarboxylate superplasticizer according to claim 5, characterized in that, Limiting grooves (32) are opened on both sides of the inner wall of the reactor body (1); The limiting groove (32) is slidably connected to a limiting strip (33), and a fixing ring (34) is fixed on one side of the limiting strip (33).

7. The cooling device for the reaction vessel used in the preparation of polycarboxylate superplasticizer according to claim 6, characterized in that, An extension plate (35) is fixed to the inner wall of the fixing ring (34), and a fixing rod (36) is fixed to the top of the extension plate (35). Several stirring plates (37) are fixed on the outside of the fixed rod (36), the main drive shaft (30) and the auxiliary drive shaft (31). The stirring plates (37) are inclined and do not contact each other.

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