Self-cleaning type polycarboxylic acid water reducing agent production reaction device

Abstract

This invention provides a self-cleaning reaction apparatus for producing polycarboxylate superplasticizer, belonging to the field of superplasticizer production technology. It includes a reaction vessel with a lid on top. A waste gas seat is fixed to the upper surface of the lid, and the bottom of the waste gas seat communicates with the interior of the reaction vessel. An exhaust pipe is fixed to the top side of the waste gas seat, and a filter cartridge is detachably installed in the middle of the top of the waste gas seat. Several filter holes are formed on the upper side surface of the filter cartridge, and a waste gas filtration assembly is detachably installed inside the filter cartridge. A servo motor is fixed to the middle of the upper surface of the lid, and the shaft of the servo motor extends into the reaction vessel, where a stirrer is fixed. Fixing seats are fixed on both sides of the stirrer, and cleaning scrapers are detachably installed inside the fixing seats. This invention not only has a self-cleaning function but also facilitates waste gas treatment. Furthermore, the detachable structure facilitates the replacement and maintenance of the filter assembly and cleaning scrapers, resulting in good overall performance.

Description

Technical Field

[0001] This utility model relates to the field of water-reducing agent production technology, and in particular to a reaction device for producing a self-cleaning polycarboxylate water-reducing agent. Background Technology

[0002] In the production of polycarboxylate superplasticizers, high-viscosity materials in the reactor easily form stubborn residues on the reactor walls. Traditional cleaning methods require manual scraping after shutdown, leading to reduced production efficiency. Simultaneously, the direct emission of volatile waste gases such as acrylic monomers causes environmental pollution. Existing reaction equipment mostly uses independent waste gas treatment systems, which are complex and cannot purify reaction waste gases in real time. Although some designs include scrapers, replacing worn scrapers is difficult, and there is a lack of integrated waste gas treatment modules, making it difficult to meet the low-cost self-cleaning needs of small and medium-sized production lines.

[0003] Therefore, this application provides a self-cleaning reaction apparatus for the production of polycarboxylate superplasticizers to solve the above-mentioned technical problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a self-cleaning reaction device for the production of polycarboxylate superplasticizer to solve the problems in the prior art, such as long downtime due to difficulty in cleaning residues on the reactor wall, high equipment complexity due to independent setting of the waste gas treatment system, inconvenience in replacing scrapers, and lack of real-time waste gas purification function.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A reaction apparatus for producing a self-cleaning polycarboxylate superplasticizer includes a reaction vessel. The top of the reaction vessel is fitted with a vessel cover. An exhaust gas seat is fixed to the upper end face of the vessel cover. The bottom of the exhaust gas seat is connected to the interior of the reaction vessel. An exhaust pipe is fixed to the top side of the exhaust gas seat. A filter cylinder is detachably installed in the middle of the top of the exhaust gas seat. Several filter holes are opened on the upper side surface of the filter cylinder. An exhaust gas filtration assembly is detachably installed inside the filter cylinder.

[0007] A servo motor is fixed in the middle of the upper end face of the reactor lid. The shaft of the servo motor extends into the reactor and is fixed with a stirrer. Both sides of the stirrer are fixed with mounting bases. A cleaning scraper is detachably installed in the mounting base and abuts against the inner wall of the reactor.

[0008] Optionally, the side of the reactor is surrounded by a heat insulation layer, and the bottom of the reactor is fixed with a support.

[0009] Optionally, the top of the exhaust gas holder is provided with a screw hole for inserting the filter cartridge, and the bottom outer surface of the filter cartridge is provided with threads.

[0010] Optionally, the exhaust gas filtration assembly inside the filter cartridge includes a filter box, the upper end face of which is open and contains activated carbon, and a raised air-passing cone is fixed on the bottom surface of the filter box, with several air holes on the surface of the air-passing cone.

[0011] Optionally, a handle is fixed to the lower end face of the filter box, and the inner wall of the filter cylinder is threaded, with the filter box threadedly installed inside the filter cylinder.

[0012] Optionally, the top and side openings of the mounting base are provided, and the end of the cleaning scraper away from the inner wall of the reactor is vertically inserted into the mounting base.

[0013] Optionally, the cleaning scraper is a PTFE scraper.

[0014] Compared with the prior art, this utility model has at least the following beneficial effects:

[0015] In the above scheme, by setting a waste gas seat on the reactor lid, a filter cylinder can be detachably installed on the top of the waste gas seat, and a waste gas filtration component is set inside the filter cylinder. The waste gas generated by the reaction enters the filter component through the filter holes on the filter cylinder, and is discharged from the exhaust pipe after being adsorbed and purified by filter materials such as activated carbon. This effectively reduces the pollution of waste gas to the environment and protects the health of operators.

[0016] In the above solution, cleaning scrapers that abut against the inner wall of the reactor are detachably installed in the fixed seats on both sides of the agitator. During the agitation process, the cleaning scrapers can simultaneously scrape the inner wall of the reactor to prevent material residue, reduce the difficulty and workload of manual cleaning, and at the same time ensure the quality of the next reaction and the service life of the reactor.

[0017] In summary, this device not only has a self-cleaning function, but also facilitates waste gas treatment. In addition, the detachable structure makes it easy to replace and maintain the filter components and cleaning scrapers, resulting in good overall performance. Attached Figure Description

[0018] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the present invention and, together with the specification, further serve to explain the principles of the present invention and enable those skilled in the art to implement and use the present invention.

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a partial structural schematic diagram of the present invention;

[0021] Figure 3 This is a schematic diagram of the structure of this utility model;

[0022] Figure 4 This is a schematic diagram of the internal structure of the present invention;

[0023] Figure 5 This is a schematic diagram of the structure of the stirrer of this utility model.

[0024] [Figure Labels]

[0025] 1. Reactor; 101. Insulation layer; 102. Support; 2. Reactor lid; 3. Servo motor; 4. Waste gas holder; 401. Exhaust pipe; 5. Filter cartridge; 501. Filter holes; 6. Filter box; 601. Gas cone; 602. Air vent; 603. Handle; 7. Activated carbon; 8. Stirrer; 9. Fixing base; 10. Cleaning scraper.

[0026] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiment of this utility model. However, this is only for illustrative purposes and is not intended to limit this utility model to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0027] The following is a detailed description of a reaction apparatus for producing a self-cleaning polycarboxylate superplasticizer provided by this utility model, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit this utility model.

[0028] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0029] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0030] It is understood that the meanings of “on”, “above”, and “above” in this utility model should be interpreted in the broadest manner, such that “on” not only means “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” not only means “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0031] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0032] like Figure 1-5 As shown, an embodiment of the present invention provides a reaction device for producing a self-cleaning polycarboxylate superplasticizer, including a reaction vessel 1. The reaction vessel 1 is cylindrical, and a heat insulation layer 101 is arranged around its side. The heat insulation layer 101 is made of polyurethane foam material, which has good heat insulation performance and can effectively reduce heat loss during the reaction process.

[0033] A support 102 is fixed at the bottom of the reactor 1. The support 102 is made of stainless steel and has sufficient strength and stability. The stainless steel support 102 can withstand the overall weight of the reactor and the vibration and impact forces that may be generated during the reaction, ensuring that the reactor remains stable during operation and that the normal progress of the reaction is not affected by shaking.

[0034] The top of the reactor 1 is fitted with a lid 2, which is tightly connected to the reactor 1 by bolts. A sealing gasket is also installed at the connection to ensure airtightness and prevent material leakage during the reaction. A waste gas holder 4 is fixed to the upper surface of the lid 2. The waste gas holder 4 is cylindrical, and its bottom is connected to the interior of the reactor 1 so that the waste gas generated by the reaction can smoothly enter the waste gas holder 4. An exhaust pipe 401 is fixed to the top side of the waste gas holder 4. The exhaust pipe 401 is used to discharge the purified waste gas outside the device. The diameter of the exhaust pipe 401 is designed according to the scale of the reaction device and the amount of waste gas generated to ensure smooth discharge of waste gas and avoid poor waste gas discharge due to an insufficient diameter of the exhaust pipe 401. A filter cartridge 5 is detachably installed in the middle of the top of the waste gas holder 4. The top of the waste gas holder 4 has a screw hole for inserting the filter cartridge 5. The bottom outer surface of the filter cartridge 5 is threaded. Through the threaded connection, the filter cartridge 5 can be firmly installed on the waste gas holder 4, and it is also easy to disassemble for cleaning or replacement.

[0035] The upper end side surface of the filter cartridge 5 has several filter holes 501, which are evenly distributed to provide a channel for the exhaust gas to enter the exhaust pipe 401. The diameter of the filter holes 501 is determined according to the composition of the exhaust gas and the filtration requirements. If the diameter of the filter holes 501 is too large, some unfiltered exhaust gas may be discharged directly; if the diameter is too small, it may affect the flow rate of the exhaust gas and reduce the exhaust gas treatment efficiency.

[0036] A detachable exhaust gas filtration assembly is installed inside the filter cartridge 5. This assembly includes a filter box 6, a cylindrical container with an open top. Activated carbon 7 is placed inside, possessing excellent adsorption properties to effectively adsorb harmful substances and odors from the exhaust gas. The particle size and filling amount of the activated carbon 7 are optimized; the moderate particle size ensures sufficient contact area with the exhaust gas, while the ample filling amount improves adsorption efficiency and extends service life. A raised air-passing cone 601 is fixed to the bottom surface of the filter box 6. Several air holes 602 are formed on the surface of the air-passing cone 601. After entering the filter cartridge 5 through the filter holes 501, the exhaust gas passes through the air holes 602 on the air-passing cone 601 into the filter box 6, where it comes into full contact with the activated carbon 7 for purification. The shape and height of the air-passing cone 601 are rationally designed to evenly disperse the exhaust gas into the filter box 6, improving the filtration effect. A handle 603 is fixed to the lower end of the filter box 6, facilitating removal and installation by the operator.

[0037] In practice, the inner wall of the filter cartridge 5 is threaded, and the filter box 6 is threadedly installed inside the filter cartridge 5. This detachable installation method facilitates the replacement of the activated carbon 7 inside the filter box 6, ensuring the waste gas treatment effect. When the activated carbon 7 is saturated, the operator can remove it from the filter cartridge 5 by rotating the filter box 6 and replace it with a new filter box 6 containing activated carbon 7.

[0038] A servo motor 3 is fixed to the center of the upper surface of the vessel lid 2. The servo motor 3 is bolted to the vessel lid 2, and its shaft extends into the reactor 1, where a stirrer 8 is fixed. Fixing seats 9 are fixed to both sides of the stirrer 8. The top and side openings of the fixing seats 9 facilitate the installation and removal of the cleaning scraper 10. The fixing seats 9 are made of high-strength alloy material, capable of withstanding vibration and impact during stirring, ensuring the installation stability of the cleaning scraper 10. The cleaning scraper 10 is detachably installed inside the fixing seat 9. The cleaning scraper 10 is a PTFE scraper. PTFE material has advantages such as corrosion resistance, wear resistance, and low coefficient of friction, which can reduce damage to the inner wall of the reactor 1 when scraping it, while ensuring cleaning effectiveness.

[0039] In practice, the end of the cleaning scraper 10 furthest from the inner wall of the reactor 1 is vertically inserted into the fixed base 9, and the cleaning scraper 10 abuts against the inner wall of the reactor 1. During the stirring process of the agitator 8, the cleaning scraper 10 rotates with the agitator 8 to scrape the inner wall of the reactor 1 in real time to prevent material residue. The thickness and length of the cleaning scraper 10 are designed according to the size of the reactor 1 to ensure effective scraping of the inner wall, while not affecting the normal operation of the agitator 8 due to being too long or too thick.

[0040] The working principle of this utility model is as follows: In actual use, the raw materials required for the production of polycarboxylate superplasticizer are first added to the reaction vessel 1, and the vessel lid 2 is closed, ensuring a good seal. The servo motor 3 is then started, driving the stirrer 8 to rotate and stir the materials for reaction. Simultaneously, the waste gas generated by the reaction enters the filter cartridge 5 through the waste gas seat 4, and after being purified by the activated carbon 7 in the filter box 6, it is discharged from the exhaust pipe 401.

[0041] During the stirring process, the cleaning scraper 10 continuously scrapes the inner wall of the reactor 1 to prevent material from adhering. After the reaction is completed and the temperature inside the reactor 1 decreases, the reactor lid 2 is opened, and the exhaust gas filter assembly can be cleaned and the activated carbon 7 replaced by disassembling the filter cartridge 5 and filter box 6.

[0042] In specific operation, the operator first rotates the filter cylinder 5 to remove it from the exhaust gas seat 4, then rotates the filter box 6 through the handle 603 to remove it from the filter cylinder 5, pours out the saturated activated carbon 7, replaces it with new activated carbon 7, and then installs the filter box 6 back into the filter cylinder 5. Finally, the filter cylinder 5 is installed back into the exhaust gas seat 4.

[0043] If the surface of the cleaning scraper 10 is worn or damaged, affecting the cleaning effect, the operator can remove the cleaning scraper 10 from the fixed seat 9 and replace it with a new one to ensure the normal use of the device next time. The entire device is reasonably designed and easy to operate, effectively solving the problems existing in traditional reaction devices and improving the production efficiency and product quality of polycarboxylate superplasticizer.

[0044] This utility model encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this utility model. To provide the public with a thorough understanding of this utility model, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand this utility model even without these detailed descriptions. Furthermore, to avoid unnecessary confusion regarding the essence of this utility model, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0045] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A reaction apparatus for producing a self-cleaning polycarboxylate superplasticizer, comprising a reaction vessel (1), wherein the top of the reaction vessel (1) is fitted with a vessel lid (2), characterized in that: The upper end face of the vessel cover (2) is fixed with a waste gas seat (4). The bottom of the waste gas seat (4) is connected to the interior of the reaction vessel (1). The top side of the waste gas seat (4) is fixed with an exhaust pipe (401). A filter cylinder (5) is detachably installed in the middle of the top of the waste gas seat (4). Several filter holes (501) are opened on the upper end side surface of the filter cylinder (5). A waste gas filtration assembly is detachably installed inside the filter cylinder (5). A servo motor (3) is fixed in the middle of the upper end face of the vessel cover (2). The shaft of the servo motor (3) extends into the reactor (1) and is fixed with a stirrer (8). Both sides of the stirrer (8) are fixed with a mounting base (9). A cleaning scraper (10) is detachably installed in the mounting base (9). The cleaning scraper (10) abuts against the inner wall of the reactor (1).

2. The self-cleaning polycarboxylate superplasticizer production reaction device according to claim 1, characterized in that, The side of the reactor (1) is surrounded by a heat insulation layer (101), and the bottom of the reactor (1) is fixed with a support (102).

3. The self-cleaning polycarboxylate superplasticizer production reaction device according to claim 1, characterized in that, The top of the exhaust gas seat (4) is provided with a screw hole for inserting the filter cylinder (5), and the bottom outer surface of the filter cylinder (5) is provided with threads.

4. The reaction apparatus for producing self-cleaning polycarboxylate superplasticizer according to claim 1, characterized in that, The exhaust gas filtration assembly inside the filter cartridge (5) includes a filter box (6), the upper end of the filter box (6) is open and contains activated carbon (7), and a protruding air passage cone (601) is fixed on the bottom surface of the filter box (6), and a number of air holes (602) are opened on the surface of the air passage cone (601).

5. The reaction apparatus for producing self-cleaning polycarboxylate superplasticizer according to claim 4, characterized in that, The lower end face of the filter box (6) is fixed with a handle (603), and the inner wall of the filter cylinder (5) is threaded, and the filter box (6) is threadedly installed inside the filter cylinder (5).

6. The reaction apparatus for producing self-cleaning polycarboxylate superplasticizer according to claim 1, characterized in that, The top and side openings of the fixed base (9) are provided, and the cleaning scraper (10) is vertically inserted into the fixed base (9) at one end away from the inner wall of the reactor (1).

7. The reaction apparatus for producing self-cleaning polycarboxylate superplasticizer according to claim 1, characterized in that, The cleaning scraper (10) is a PTFE scraper.

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