Novel reaction container for producing formaldehyde-free adhesive

Abstract

The utility model discloses a novel reaction vessel for formaldehyde-free adhesive production, and particularly relates to the technical field of formaldehyde-free adhesive production, the novel reaction vessel comprises a conical reaction kettle, a cover plate is arranged on the upper end face of the conical reaction kettle, a fixed shaft is rotatably mounted at the bottom end of the cover plate, two stirring devices are symmetrically arranged on the outer wall of the fixed shaft, and the stirring devices are arranged on the outer wall of the conical reaction kettle. And a fixing sleeve is fixedly mounted on the outer wall of the fixing shaft. When the reaction kettle is used, the reaction kettle is easy to operate, efficient mixing of reaction materials and continuous cleaning of the inner wall of the container are achieved through cooperation of the stirring device and the scraping device, and the first scraping plate in the stirring device is attached to the kettle wall to scrape the materials while stirring the materials; the second scraping plate of the scraping device further removes the materials attached to the inclined inner wall of the conical reaction kettle, the materials are prevented from being attached to the kettle wall to affect the reaction effect under the combined action of the first scraping plate and the second scraping plate, the reaction materials are fully mixed in the conical reaction kettle, the reaction uniformity is guaranteed, and therefore the production quality and the reaction efficiency of the formaldehyde-free adhesive are improved.

Description

Technical Field

[0001] This utility model relates to the field of formaldehyde-free adhesive production technology, and more specifically, to a novel reaction vessel for the production of formaldehyde-free adhesive. Background Technology

[0002] In today's society, with the increasing awareness of environmental protection, the dangers of formaldehyde are receiving more and more attention. Formaldehyde, a colorless, easily soluble, and irritating gas, poses a significant threat to human health, making formaldehyde-free adhesives highly sought after in the market, especially in the engineered wood products and building materials industries, where their application prospects are broad. Engineered wood products such as plywood, particleboard, blockboard, and fiberboard are widely used in daily life. However, traditional engineered wood products often use adhesives containing formaldehyde, and their formaldehyde release period can be as long as 15 years, becoming a significant source of indoor air pollution. Therefore, developing new green formaldehyde-free adhesives is key to solving the problem of free formaldehyde pollution.

[0003] Chinese utility model patent CN220328536U discloses a reaction vessel for producing formaldehyde-free adhesive. During operation, a scraper mounted on a fixed base adheres to the inner wall of the vessel during stirring. As the scraper wears down, a spring applies elastic force to a slider, causing the slider to slide in conjunction with a guide rod. Simultaneously, a guide post at the bottom of the mounting base slides within a guide hole in the base plate, ensuring the stability of the mounting base while maintaining constant contact between the scraper and the inner wall of the vessel. This allows for continuous scraping of the formaldehyde-free adhesive adhering to the inner wall, eliminating the need for frequent scraper replacements. However, the fixed shape of the scraper prevents it from fitting snugly against the conical inner wall of the reaction vessel, resulting in ineffective scraping of the formaldehyde-free adhesive and insufficient mixing of the reactants, affecting reaction uniformity.

[0004] Therefore, it is necessary to redesign a new type of reaction vessel for the production of formaldehyde-free adhesive to address the above-mentioned problems. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the embodiments of this utility model provide a novel reaction vessel for the production of formaldehyde-free adhesive.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A novel reaction vessel for the production of formaldehyde-free adhesive includes a conical reactor. The upper end of the conical reactor is provided with a cover plate, and a fixed shaft is rotatably installed at the bottom end of the cover plate. Two stirring devices are symmetrically arranged on the outer wall of the fixed shaft. A fixed sleeve is fixedly installed on the outer wall of the fixed shaft. Multiple scraping devices are arranged circumferentially on the outer wall of the fixed sleeve, and the output ends of the multiple scraping devices are in contact with the inner wall of the conical reactor.

[0008] In a preferred embodiment, each of the stirring devices includes two stirring rods, each stirring rod having a mounting groove at one end, a first spring fixedly connected in each mounting groove, a connecting rod fixedly connected at one end of each first spring, and the outer walls of the two connecting rods respectively fitting against the inner walls of the two mounting grooves. A first scraper is fixedly connected at one end of the connecting rod, and the first scraper contacts the inner wall of the conical reactor.

[0009] In a preferred embodiment, each of the scraping devices includes a drive rod, which is inclinedly disposed on the outer wall of the fixed sleeve. One end of the drive rod is provided with a fixed groove, and a second spring is fixedly connected to the inner wall of the fixed groove. One end of the second spring is fixedly connected to a fixed rod, and the fixed rod is in contact with the inner wall of the fixed groove. One end of the fixed rod is fixedly connected to a second scraper, and the second scraper is in contact with the inner wall of the conical reactor.

[0010] In a preferred embodiment, a mounting bracket is fixedly installed on the upper end face of the cover plate, and a motor is fixedly installed on the mounting bracket. The output shaft of the motor passes through the upper end face of the cover plate and is fixedly connected to the top end of the fixed shaft.

[0011] In a preferred embodiment, a feeding port is fixedly installed on the upper end face of the cover plate, and the feeding port is connected to the conical reactor.

[0012] In a preferred embodiment, the bottom end of the conical reactor is fixedly connected to a discharge pipe, and the discharge pipe is equipped with a control valve.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] This invention is simple to operate. Through the cooperation of the stirring device and the scraping device, it achieves efficient mixing of the reactants and continuous cleaning of the inner wall of the container. The first scraper in the stirring device scrapes against the vessel wall while stirring the materials, and the second scraper in the scraping device further removes the materials adhering to the inclined inner wall of the conical reactor. The two work together to prevent materials from adhering to the vessel wall and affecting the reaction effect, so that the reactants are fully mixed in the conical reactor, ensuring the uniformity of the reaction, thereby improving the production quality and reaction efficiency of formaldehyde-free adhesive. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a novel reaction vessel for the production of formaldehyde-free adhesive proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the interior of a conical reactor for the production of a novel formaldehyde-free adhesive, as proposed in this utility model.

[0017] Figure 3 This is a cross-sectional view of a conical reactor for the production of a novel formaldehyde-free adhesive, as proposed in this utility model.

[0018] Figure 4 This is a schematic cross-sectional view of the stirring rod of a novel reaction vessel for the production of formaldehyde-free adhesive proposed in this utility model.

[0019] Figure 5 This is a schematic cross-sectional view of the transmission rod of a novel reaction vessel for the production of formaldehyde-free adhesives proposed in this utility model.

[0020] In the diagram: 1. Conical reactor; 2. Cover plate; 3. Mounting bracket; 4. Motor; 5. Feed port; 6. Discharge pipe; 7. Fixed shaft; 8. Fixed sleeve; 9. Stirring rod; 10. First scraper; 11. Mounting groove; 12. First spring; 13. Connecting rod; 14. Fixed groove; 15. Second spring; 16. Fixed rod; 17. Second scraper; 18. Transmission rod. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Reference Figure 1-5 A novel reaction vessel for the production of formaldehyde-free adhesive includes a conical reactor 1. The upper end of the conical reactor 1 is provided with a cover plate 2. A fixed shaft 7 is rotatably installed at the bottom end of the cover plate 2. Two stirring devices are symmetrically arranged on the outer wall of the fixed shaft 7. A fixed sleeve 8 is fixedly installed on the outer wall of the fixed shaft 7. Multiple scraping devices are arranged circumferentially on the outer wall of the fixed sleeve 8, and the output ends of the multiple scraping devices are in contact with the inner wall of the conical reactor 1.

[0023] Each stirring device includes two stirring rods 9. Each stirring rod 9 has a mounting groove 11 at one end. A first spring 12 is fixedly connected in each mounting groove 11. A connecting rod 13 is fixedly connected to one end of each first spring 12. The outer walls of the two connecting rods 13 are respectively attached to the inner walls of the two mounting grooves 11. A first scraper 10 is fixedly connected to one end of the connecting rod 13. The first scraper 10 is in contact with the inner wall of the conical reactor 1.

[0024] Each scraping device includes a transmission rod 18, which is inclinedly disposed on the outer wall of the fixed sleeve 8. A fixed groove 14 is provided at one end of the transmission rod 18. A second spring 15 is fixedly connected to the inner wall of the fixed groove 14. A fixed rod 16 is fixedly connected to one end of the second spring 15, and the fixed rod 16 is in contact with the inner wall of the fixed groove 14. A second scraper 17 is fixedly connected to one end of the fixed rod 16, and the second scraper 17 is in contact with the inner wall of the conical reactor 1. The elastic properties of the second spring 15 allow the second scraper 17 to remain in contact with the inner wall of the conical reactor 1.

[0025] A mounting bracket 3 is fixedly installed on the upper end face of the cover plate 2. A motor 4 is fixedly installed on the mounting bracket 3. The output shaft of the motor 4 passes through the upper end face of the cover plate 2 and is fixedly connected to the top end of the fixed shaft 7. The start of the motor 4 can drive the fixed shaft 7 to rotate.

[0026] A feeding port 5 is fixedly installed on the upper end face of the cover plate 2, and the feeding port 5 is connected to the conical reactor 1. Formaldehyde-free adhesive raw materials can be added into the conical reactor 1 through the feeding port 5.

[0027] The bottom of the conical reactor 1 is fixedly connected to a discharge pipe 6, which is equipped with a control valve. By opening the control valve, the discharge speed and time of the material can be controlled, facilitating the collection and subsequent processing of the reaction products.

[0028] When this invention is in use, the motor 4 on the mounting bracket 3 on the upper end face of the cover plate 2 is energized and operates, and the output shaft of the motor 4 drives the fixed shaft 7 to rotate. When the fixed shaft 7 rotates, the two stirring devices symmetrically arranged on its outer wall start to work. During the rotation of the stirring rod 9, the first scraper 10 can not only stir the reactants, but also scrape against the inner wall of the conical reactor 1, so that the reactants are fully mixed in the conical reactor 1, while avoiding the material from adhering to the reactor wall and affecting the reaction effect.

[0029] When the fixed shaft 7 rotates, the fixed sleeve 8 also rotates. As the fixed sleeve 8 rotates, the second spring 15 in the fixed groove 14 causes the fixed rod 16 to extend and retract within the fixed groove 14. The second scraper 17 contacts the inner wall of the conical reactor 1. During the rotation of the fixed sleeve 8, the second scraper 17 continuously scrapes against the inner wall of the conical reactor 1, further removing the material adhering to the reactor wall, ensuring the cleanliness of the inner wall of the reaction vessel, and facilitating the smooth progress of the reaction.

[0030] When it is necessary to add reactants, the materials can be added into the conical reactor 1 through the feed port 5 fixedly installed on the upper end face of the cover plate 2. The feed port 5 is connected to the conical reactor 1, which facilitates the addition of materials.

[0031] After the reaction is completed, the discharge pipe 6, which is fixedly connected to the bottom of the conical reactor 1, is used to discharge the reaction material. The discharge pipe 6 is equipped with a control valve, which can control the discharge speed and time of the material, so as to facilitate the collection and subsequent processing of the reaction products.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A new type of reaction vessel for producing formaldehyde-free glue, comprising a conical reaction kettle (1), characterized in that: The upper end surface of the conical reaction kettle (1) is provided with a cover plate (2), the bottom end of the cover plate (2) is rotatably provided with a fixed shaft (7), the outer wall of the fixed shaft (7) is symmetrically provided with two stirring devices, the outer wall of the fixed shaft (7) is fixedly provided with a fixed sleeve (8), the outer wall of the fixed sleeve (8) is circumferentially provided with a plurality of scraping devices, and the output ends of the plurality of scraping devices are in contact with the inner wall of the conical reaction kettle (1).

2. A novel reaction vessel for producing a formaldehyde-free adhesive according to claim 1, characterized in that: Each of the stirring devices comprises two stirring rods (9), one end of each of the stirring rods (9) is provided with a mounting groove (11), each of the mounting grooves (11) is fixedly connected with a first spring (12), one end of each of the first springs (12) is fixedly connected with a connecting rod (13), the outer walls of the two connecting rods (13) are respectively attached to the inner walls of the two mounting grooves (11), one end of the connecting rod (13) is fixedly connected with a first scraper (10), and the first scraper (10) is in contact with the inner wall of the conical reaction kettle (1).

3. A novel reaction vessel for producing a formaldehyde-free adhesive according to claim 1, characterized in that: Each of the scraping devices comprises a transmission rod (18), and the transmission rod (18) is inclinedly arranged on the outer wall of the fixed sleeve (8), one end of the transmission rod (18) is provided with a fixed groove (14), the inner side wall of the fixed groove (14) is fixedly connected with a second spring (15), one end of the second spring (15) is fixedly connected with a fixed rod (16), the fixed rod (16) is attached to the inner wall of the fixed groove (14), one end of the fixed rod (16) is fixedly connected with a second scraper (17), and the second scraper (17) is in contact with the inner wall of the conical reaction kettle (1).

4. The novel reaction vessel for producing a formaldehyde-free adhesive according to claim 1, characterized in that: The upper end surface of the cover plate (2) is fixedly provided with a mounting frame (3), the mounting frame (3) is fixedly provided with a motor (4), and the output shaft of the motor (4) penetrates the upper end surface of the cover plate (2) and is fixedly connected with the top end of the fixed shaft (7).

5. The novel reaction vessel for producing a formaldehyde-free adhesive according to claim 4, characterized in that: The upper end surface of the cover plate (2) is fixedly provided with a feeding port (5), and the feeding port (5) is in communication with the conical reaction kettle (1).

6. A novel reaction vessel for producing a formaldehyde-free adhesive according to claim 1, characterized in that: The bottom end of the conical reaction kettle (1) is fixedly communicated with a discharge pipe (6), and the discharge pipe (6) is provided with a control valve.

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