Template reactor chain belt, belt template polymerization apparatus, and polymerization method

Abstract

This invention discloses a template reactor chain, a belt-type template polymerization device, and a polymerization method, belonging to the field of colloidal polymerization. The template reactor chain is formed by linking multiple template reactor links or template reactors of uniform specifications around a circle; each template reactor link consists of at least two template reactors arranged side-by-side; each template reactor includes a fixed wall and a base plate that can move along the fixed wall in a piston-like motion and is tightly fitted to the inner wall of the fixed wall. The belt-type template polymerization device of this invention is particularly suitable for free radical-initiated polymerization with high material concentration, high polymerization heat, and high gel strength; the reaction product gel obtained using this polymerization device is already a small, sized gel block, eliminating the need for cutting and even granulation processes. The polymerization device of this invention can save polymer manufacturers significant amounts of electricity for gel block cutting and / or granulation, and heat for drying.

Description

Technical Field

[0001] This invention belongs to the field of colloidal polymerization, and in particular to a template reactor chain, a belt template polymerization device, and a polymerization method. Background Technology

[0002] Commercially available powdered or granular water-soluble polymers, such as homopolymers and copolymers of acrylic acid (salts), acrylamide, dimethyl diallyl ammonium chloride, and acryloyloxyethyl trimethyl ammonium chloride, are all produced by free radical-initiated polymerization. The mainstream production process includes steps such as batching, initiation polymerization, block cutting, granulation, drying, and grinding and sieving. This type of polymerization reaction takes place in an aqueous solution. At a certain temperature and concentration, the monomer aqueous solution is rapidly polymerized after being initiated by a free radical initiator, releasing a large amount of heat and causing a rapid rise in the system temperature. The reaction products obtained from the above polymerization reaction are generally non-flowing, relatively strong, but deformable agglomerated blocks under pressure. These blocks can be cut and granulated using extrusion cutting or rotary blade cutting methods.

[0003] To facilitate the removal of agglomerated polymer blocks from the polymerization reactor, existing technologies employ reactors with large discharge openings or semi-open rubber belts or metal trays for the polymerization reaction. When conducting the polymerization reaction in a reactor with a large discharge opening, the material concentration cannot be too high to prevent overheating and ensure the polymer blocks are extruded under pressure; this limits the equipment's capacity and increases the energy consumption for subsequent drying. While overheating is not a concern when conducting the polymerization reaction in a rubber belt or metal tray, high material concentrations result in excessively strong polymer blocks, making cutting and processing them extremely difficult. Summary of the Invention

[0004] To overcome the above-mentioned technical defects, the present invention provides a template reactor chain, a belt template polymerization device, and a polymerization method to solve the problems involved in the background art.

[0005] The present invention provides a template reactor chain belt, comprising: the template reactor chain belt being formed by multiple template reactor chain segments or template reactors of the same specification linked together and encircling one circumference; the template reactor chain segment being composed of at least two template reactors arranged side by side; the template reactor including a retainer wall with open ends, and a bottom plate that can move along the retainer wall in a piston-like motion and is tightly fitted with the inner wall of the retainer wall.

[0006] Preferably or optionally, a limiting plate with holes is provided at the bottom of the retainer wall, and a limiting tension member is also provided between the limiting plate and the bottom plate.

[0007] Preferably or optionally, the volume of the tank of the template reactor is 100-3000ml.

[0008] Preferably or optionally, the outer periphery of the base plate is wrapped with an elastic sealing ring.

[0009] The present invention also provides a belt template polymerization device including the template reactor chain belt, wherein the reactant of the belt template polymerization device is a monomer aqueous solution and the product is a condensed polymer block; the belt template polymerization device includes: a frame, a front roller and a rear roller mounted on the frame, a drive motor connected to the front roller and / or the rear roller, and a template reactor chain belt fitted on the front roller and the rear roller;

[0010] The drive motor drives the front roller and / or the rear roller to rotate, and the front roller and / or the rear roller drive the template reactor chain or the chain on the template reactor chain to rotate, thereby driving the template reactor chain to move in a circular motion.

[0011] Preferably or optionally, the circumferential direction of the template reactor chain is divided into a feeding section, a reaction initiation section, a heat preservation section, a discharge section, a bottom plate reset section, and a cleaning section.

[0012] The feeding section and the reaction initiation section are located at the upper part of the template reactor chain, and the unloading section and the bottom plate reset section are located at the lower part of the template reactor chain.

[0013] Preferably or optionally, a reaction initiator injection device is provided above the feeding section, which is suitable for injecting reaction initiators into the template reactor;

[0014] A discharge device is provided in the discharge section to drive the bottom plate to move along the inner wall of the fixture away from the limiting plate until the condensed polymer block is separated from the bottom plate and the inner wall of the fixture.

[0015] A reset device is provided in the base plate reset section to drive the base plate to move along the inner wall of the fixture towards the side close to the limiting plate until it fits against the limiting plate.

[0016] A cleaning device is installed in the cleaning section.

[0017] Preferably or optionally, the unloading device includes an ejection mechanism disposed on the upper part of the template reactor chain belt, which drives the bottom plate to move along the inner wall of the fixture wall away from the limiting plate through the hole, and a scraper disposed on the lower part of the template reactor chain belt and in contact with the open end of the fixture wall.

[0018] Preferably or optionally, the initiating reaction section and the heat preservation section are equipped with heat preservation covers.

[0019] Optionally, a cooling section is provided between the heat preservation section and the unloading section.

[0020] The present invention also provides a polymerization method based on the aforementioned tape template polymerization device, comprising the following steps:

[0021] Configure a belt template polymerization device;

[0022] In the feeding section, the reaction starter is injected into the template reactor;

[0023] In the initiation reaction section, the reaction is violent under the action of the initiator, and the product is formed in the template reactor;

[0024] In the heat preservation section, the polymerization reaction continues until it is fully completed;

[0025] In the unloading section, the bottom plate of the aforementioned template reactor is moved towards the opening by mechanical force until it reaches the edge of the reactor wall opening, pushing the reacted and formed condensed polymer block out of the template reactor, and then the condensed polymer block is peeled off from the bottom plate by a scraper.

[0026] In the bottom plate reset section, the bottom plate of the aforementioned template reactor is moved from the reactor opening to the bottom using mechanical force until it reaches the bottom of the reactor;

[0027] The bottom plate cleaning section is used to rinse and clean the inside of the template reactor.

[0028] This invention relates to a template reactor chain, a belt-type template polymerization device, and a polymerization method, which have the following advantages compared to the prior art:

[0029] 1. The template reactor chain belt in this invention is equipped with multiple template reactors. The reaction product blocks obtained by using this polymerization reaction vessel are already small blocks of fixed size, which can save the cutting process and even the granulation process; and the condensed polymer blocks are fed out by piston movement of the bottom plate along the wall of the fixture.

[0030] 2. The polymerization equipment in this invention drives the front roller and / or the rear roller to rotate via a drive motor. The front roller and / or the rear roller drive the fixing wall chain belt to rotate, thereby driving the fixing wall chain belt to move in a circular motion, which facilitates the injection of reaction starters and the feeding of condensed polymer blocks.

[0031] 3. The polymerization method in this invention is based on polymerization equipment, realizing automatic feeding section, reaction initiation, heat preservation polymerization, unloading, bottom plate reset and cleaning, realizing continuous production of template polymerization reactor.

[0032] In summary, the polymerization equipment of this invention is particularly suitable for polymerization initiated by free radicals, with high material concentration, high polymerization heat, and high polymer strength. The polymerization equipment of this invention can save the above-mentioned polymer production plants a lot of electricity for cutting and / or granulating polymer blocks and heat for drying, which is of great significance to energy conservation and carbon reduction. Attached Figure Description

[0033] Figure 1 This is a schematic diagram of the template reactor in this invention.

[0034] Figure 2 This is a cross-sectional schematic diagram of the template reactor in this invention.

[0035] Figure 3 This is a schematic diagram of the structure of the template reactor chain segment in this invention.

[0036] Figure 4 This is a cross-sectional schematic diagram of a link in the template reactor chain of this invention.

[0037] Figure 5 This is a schematic diagram of the template reactor chain in this invention.

[0038] Figure 6 This is a schematic diagram of the belt template polymerization device in this invention.

[0039] Figure 7 This is a side view of the belt template polymerization device in this invention.

[0040] The attached figures are labeled as follows:

[0041] 100. Template reactor chain belt; 110. Template reactor chain link; 120. Chain; 111. Template reactor; 1111. Fixing wall; 1112. Base plate; 1113. Hole; 1114. Limiting plate; 1115. Limiting tension component;

[0042] 200. Rack;

[0043] 310. Front roller; 320. Rear roller;

[0044] 400. Drive motor;

[0045] 510. Feeding section; 511. Reactant initiation device; 520. Initiation reaction section; 530. Heat preservation section; 540. Discharge section; 541. Ejection mechanism; 542. Scraper; 550. Bottom plate reset section; 551. Reset device; 560. Cleaning section; 561. Cleaning device. Detailed Implementation

[0046] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the invention. However, it will be apparent to those skilled in the art that the invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid obscuring the invention.

[0047] See appendix Figures 1 to 7 A belt-type template polymerization apparatus, wherein the reactant in the belt-type template polymerization apparatus is an aqueous monomer solution, and the product is a coagulated gel. (See attached document.) Figure 6 The belt-type template polymerization equipment includes: a frame 200, a front roller 310 and a rear roller 320 mounted on the frame 200, a drive motor 400 connected to the front roller 310 and / or the rear roller 320, and a template reactor chain belt 100 fitted on the front roller 310 and the rear roller 320; the drive motor 400 drives the front roller 310 and / or the rear roller 320 to rotate, and the front roller 310 and / or the rear roller 320 drive the template reactor chain belt 100 or the chain 120 on the template reactor chain belt 100 to rotate, thereby driving the template reactor chain belt 100 to move in a circular motion.

[0048] See appendix Figure 5 The template reactor chain 100 is formed by linking multiple template reactor chain links 110 of the same specification around a circumference, and chains 120 are provided on both sides of the template reactor chain links 110. (See appendix) Figure 3 Appendix Figure 4 The template reactor chain 110 is composed of at least two template reactors 111 arranged side by side. Of course, for some template reactor chains 100, they can be directly composed of a single row of template reactors 111, that is, the template reactor chain 100 is formed by linking multiple template reactors 111 of the same specification around one ring, and chains 120 are provided on both sides of the template reactors 111.

[0049] See appendix Figure 1 Appendix Figure 2 The template reactor 111 includes a fixed wall 1111 with open surfaces at both ends, a bottom plate 1112 that can move along the fixed wall 1111 and is in close contact with the inner wall of the fixed wall 1111, a limiting plate 1114 with holes 1113 disposed at the bottom of the fixed wall 1111, and a limiting tension member 1115 disposed between the limiting plate 1114 and the bottom plate 1112.

[0050] The limiting tension member 1115 is made of steel wire, steel rope, steel sheet, synthetic material strip, or rope to limit the relative position of the base plate 1112 and the fixing wall 1111, preventing the base plate 1112 from detaching from the fixing wall 1111. Of course, for those skilled in the art, the limiting tension member 1115 is not limited to a limiting tension bar; it can also be a spring disposed between the base plate 1112 and the limiting plate 1114, serving both a limiting effect and a reset function.

[0051] The volume of a single tank in the template reactor 111 is 100-3000ml, preferably 150-1500ml, and more preferably 200-1000ml, enabling control over the size of the reaction product gel blocks. This eliminates the need for a cutting process and even a granulation process. Furthermore, since the bottom plate 1112 can move relative to the fixing wall 1111 like a piston, those skilled in the art can adjust the volume of a single tank in the template reactor 111 by controlling the position of the bottom plate 1112 relative to the fixing wall 1111.

[0052] The template reactor 111 is made of metal, ceramic, rigid plastic, rubber, fiberglass, or a combination of the above materials, preferably a combination of metal, rigid plastic, and rubber. For example, the retainer wall 1111 and the limiting plate 1114 are both profiles made of fiberglass, ceramic, metal, or rigid plastic; the inner layer of the bottom plate 1112 is made of fiberglass, ceramic, metal, or rigid plastic, and an elastic material is wrapped around the outer layer of the bottom plate 1112 to form a sealing ring, ensuring that the bottom plate 1112 is tightly sealed to the inner wall of the retainer wall 1111, forming a container with an open upper section.

[0053] See appendix Figure 7 The template reactor chain 100 is sequentially divided into a feeding section 510, a reaction initiation section 520, a heat preservation section 530, a discharge section 540, a bottom plate reset section 550, and a cleaning section 560 along its circumference. The feeding section 510 and the reaction initiation section 520 are located in the upper part of the template reactor chain 100 (the forward section of the template reactor chain 100 moving from the rear roller 320 to the front roller 310), and the discharge section 540 and the bottom plate reset section 550 are located in the lower part of the template reactor chain 100 (the rotating section of the template reactor chain 100 moving from the front roller 310 to the rear roller 320). Since the heat preservation section 530 and the cleaning section 560 can span the upper and lower parts of the template reactor chain 100 as needed, their positions are not specifically limited here.

[0054] The feed section 510 includes a reaction initiator injection device 511 for injecting reaction initiators into the template reactor 111. The reaction initiators include reactants and initiators. The initiation reaction section 520 is characterized by vigorous reactions, thus providing suitable initiation conditions, such as ultraviolet initiation. The discharge section 540 includes a discharge device that drives the bottom plate 1112 to move away from the limiting plate 1114 along the inner wall of the fixture wall 1111 until the condensed colloid detaches from the bottom plate 1112 and the inner wall of the fixture wall 1111. The bottom plate reset section 550 includes a reset device 551 that drives the bottom plate 1112 to move closer to the limiting plate 1114 along the inner wall of the fixture wall 1111 until it fits against the limiting plate 1114. The cleaning section 560 includes a cleaning device 561 that uses cleaning water to rinse and clean the inside of the template reactor 111. In addition, heat insulation covers are installed in the initiation reaction section 520 and the heat preservation section 530 to improve the reaction process of the polymerization reaction. Of course, those skilled in the art will know that the belt template polymerization equipment can be equipped with a cooling section between the heat preservation section and the unloading section according to process requirements.

[0055] In a further embodiment, the unloading device includes an ejection mechanism 541 disposed on the upper part of the template reactor chain belt 100, passing through the hole 1113 to drive the bottom plate 1112 to move along the inner wall of the fixture wall 1111 away from the limiting plate 1114, and a scraper 542 disposed on the lower part of the template reactor chain belt 100 and abutting against the open end of the fixture wall 1111. The ejection mechanism 541 can be driven by a cylinder or manually. The ejection mechanism 541 pushes the bottom plate 1112 downward until the bottom plate 1112 is aligned with the open end of the fixture wall 1111, and then the scraper 542 peels the agglomerated polymer block off the reactor bottom plate 1112.

[0056] To facilitate understanding of the technical solution of the belt-type template polymerization equipment, its polymerization method is briefly described as follows: A belt-type template polymerization equipment is configured; in the feeding section 510, reaction starters are injected into the template reactor 111; in the initiation reaction section 520, a vigorous reaction occurs under the action of an initiator, and the product is formed in the template reactor 111; in the heat preservation section 530, the polymerization reaction continues until it is fully completed; in the unloading section 540, the bottom plate 1112 of the template reactor 111 is moved towards the opening by mechanical force until it reaches the edge of the reactor wall opening, pushing the formed agglomerated polymer block out of the template reactor 111, and then the agglomerated polymer block is peeled off from the bottom plate 1112 by a scraper 542; in the bottom plate reset section 550, the bottom plate 1112 of the template reactor 111 is moved from the reactor opening towards the bottom by mechanical force until it reaches the bottom of the reactor; in the bottom plate 1112 cleaning section 560, the interior of the template reactor 111 is rinsed and cleaned.

[0057] It should also be noted that the various specific technical features described in the above embodiments can be combined in any suitable manner without contradiction. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.

Claims

1. A belt-type template polymerization device, characterized in that, The reactant in the belt-type template polymerization equipment is a monomer aqueous solution, and the product is a condensed polymer block. The belt-type template polymerization equipment includes: a frame, a front roller and a rear roller mounted on the frame, a drive motor that is connected to the front roller and / or the rear roller, and a template reactor chain belt fitted on the front roller and the rear roller; The template reactor chain is formed by multiple template reactor links of the same specification encircling each other, and chains are provided on both sides of the template reactor links; the template reactor links are composed of at least two template reactors side by side; the template reactor includes a retainer wall with open ends, a bottom plate that can move along the retainer wall and is in close contact with the inner wall of the retainer wall; a limiting plate with holes is provided at the bottom of the retainer wall, and a limiting tension member is also provided between the limiting plate and the bottom plate; The drive motor drives the front roller and / or the rear roller to rotate, and the front roller and / or the rear roller drives the chain on the template reactor chain to rotate, thereby driving the template reactor chain to move in a circular motion. The template reactor chain is divided into a feeding section, a reaction initiation section, a heat preservation section, a discharge section, a bottom plate reset section, and a cleaning section along its circumference. The feeding section and the reaction initiation section are located at the upper part of the template reactor chain, while the discharge section and the bottom plate reset section are located at the lower part of the template reactor chain. A discharge device is provided in the discharge section to drive the bottom plate to move away from the limiting plate along the inner wall of the fixing device until the condensed polymer block detaches from the bottom plate and the inner wall of the fixing device; a reset device is provided in the bottom plate reset section to drive the bottom plate to move closer to the limiting plate along the inner wall of the fixing device until it fits against the limiting plate. The unloading device includes an ejection mechanism located above the lower part of the template reactor chain belt, which drives the bottom plate to move away from the limiting plate along the inner wall of the fixture wall through the hole, and a scraper located below the lower part of the template reactor chain belt and in contact with the open end of the fixture wall.

2. The belt-type template polymerization device according to claim 1, characterized in that, The volume of the tank in the template reactor is 100-3000ml.

3. The belt template polymerization device according to claim 1, characterized in that, The outer perimeter of the base plate is wrapped with an elastic sealing ring.

4. The belt template polymerization device according to claim 1, characterized in that, A reaction initiator injection device is provided above the feeding section, which is suitable for injecting reaction initiators into the template reactor.

5. The belt template polymerization device according to claim 1, characterized in that, A cleaning device is installed in the cleaning section.

6. The belt template polymerization device according to claim 1, characterized in that, The initiation reaction section and the heat preservation section are equipped with heat preservation covers.

7. A polymerization method based on the belt template polymerization apparatus of claim 6, characterized in that, Includes the following steps: Configure a belt template polymerization device; In the feeding section, the reaction starter is injected into the template reactor; In the initiation reaction section, the reaction is violent under the action of the initiator, and the product is formed in the template reactor; In the heat preservation section, the polymerization reaction continues until it is fully completed; In the unloading section, the bottom plate of the aforementioned template reactor is moved towards the opening by mechanical force until it reaches the edge of the opening of the fixer wall, pushing the reacted and formed condensed polymer block out of the template reactor, and then the condensed polymer block is peeled off from the bottom plate by a scraper. In the bottom plate reset section, the bottom plate of the aforementioned template reactor is moved from the reactor opening to the bottom using mechanical force until it reaches the bottom of the reactor; In the cleaning section, the inside of the template reactor is rinsed and cleaned.

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