Production process of dehydrated double-component PU paste

Abstract

The invention discloses a production process of dehydrated two-component PU paste, and belongs to the technical field of chemical equipment.The production process of the dehydrated two-component PU paste comprises a reaction kettle A, a reaction kettle B, a screening tank and a mixing tank, the discharge port of the reaction kettle A and the discharge port of the reaction kettle B are both communicated with the screening tank through a first conveying pipe, and the mixing tank is communicated with the screening tank through a second conveying pipe; a component raw material A and a component raw material B which are respectively processed and generated in the reaction kettle A and the reaction kettle B can be conveyed into a filter cartridge in the screening tank, the filter cartridge rotates under the cooperation of a driving motor and a rotating shaft, and the raw materials in the filter cartridge are separated from each other under the action of centrifugal force. Qualified raw materials and agglomerated raw materials are rapidly separated, the influence of the agglomerated raw materials on the product quality is avoided, meanwhile, the lifting mechanism is additionally arranged, the stirring assembly can stir up and down, and the problems that traditional A and B component raw materials are insufficient in stirring and low in stirring efficiency are solved.

Description

Technical Field

[0001] The invention relates to the technical field of chemical equipment, and more specifically to a production process of a dehydrated two-component PU paste. Background Art

[0002] Dehydrated two-component PU paste is a two-component reaction-curing sealing material, mainly composed of two components A and B. Component A is a milky white or light yellow viscous polyurethane prepolymer, and component B is a black paste or liquid mixed and dehydrated from a curing agent and additives. After the two components are mixed in a certain proportion, they will slowly solidify after a period of time to form a rubber body with certain elasticity and adhesion. It is widely used in the connection of building materials such as civil construction, transportation, and concrete prefabricated parts, as well as the filling and sealing of construction joints.

[0003] Based on the above, the inventors found that: in the production and processing of the dehydrated two-component PU paste, the two-component raw materials A and B usually need to be processed separately, and then directly mixed and solidified in a certain proportion to form a product. However, when the two-component raw materials A and B are processed separately, their respective raw materials may have lumps inside the raw materials due to uneven stirring or inaccurate temperature control. When the two raw materials are directly mixed, these lumps are also mixed in, resulting in certain quality problems in the produced products. At the same time, when the two-component raw materials A and B are mixed, a fixed-position agitator is usually used for stirring. The stirring efficiency of this stirring method is poor, which reduces the processing efficiency of the product. Therefore, in view of this, the existing structure is studied and improved to provide a production process for a dehydrated two-component PU paste, in order to achieve a more practical and useful purpose. Summary of the invention

[0004] 1. Technical problems to be solved

[0005] In view of the problems existing in the prior art, the purpose of the present invention is to provide a production process for a dehydrated two-component PU paste, which can transport the A and B component raw materials processed in the A reactor and the B reactor respectively to the filter cylinder in the screening tank, and under the cooperation of the driving motor and the rotating shaft, the filter cylinder is rotated, and the raw materials inside are quickly separated from the agglomerated raw materials under the action of centrifugal force, thereby avoiding the influence of the agglomerated raw materials on the product quality. At the same time, a lifting mechanism is added to enable the stirring assembly to stir up and down, thereby solving the problems of insufficient stirring and low stirring efficiency of the traditional A and B component raw materials.

[0006] 2. Technical solution

[0007] To solve the above problems, the present invention adopts the following technical solutions.

[0008] A production process for a dehydrated two-component PU paste comprises a reactor A, a reactor B, a screening tank and a mixing tank, wherein the discharge ports of the reactor A and the reactor B are both connected to the screening tank through a feeding pipe 1, a discharge port is arranged at the bottom of the screening tank, two feeding pipes 2 are installed at the bottom of the discharge port, one end of the feeding pipe 2 is located at the inner side of the top opening of the mixing tank and the port is downward, a boss is arranged at the bottom inner wall of the screening tank, the top of the boss is rotatably connected to a rotating shaft through a sealing bearing, the top of the rotating shaft is fixedly connected to a filter cartridge, a mounting groove is arranged at the bottom of the screening tank, a driving motor is installed in the mounting groove, the bottom end of the rotating shaft extends into the mounting groove and is transmission-connected to the output shaft of the driving motor through a coupling, a scraping mechanism is arranged between the outer periphery of the rotating shaft and the inner side wall of the screening tank, a lifting mechanism is arranged at the outer periphery of the mixing tank, a horizontal plate is installed on the lifting mechanism, a stirring assembly is arranged at one end of the horizontal plate, and the stirring assembly is located directly above the mixing tank.

[0009] Furthermore, a first feed pump is installed on the first feed pipe, and a second feed pump is installed on the second feed pipe.

[0010] Furthermore, a mounting frame is fixedly connected to the top inner wall of the screening tank, and the inner wall of the mounting frame is rotatably connected to the top outer periphery of the filter cartridge via a bearing.

[0011] Furthermore, a plurality of filter holes are provided on the outer circumference and the bottom of the filter cartridge, and the plurality of filter holes are evenly distributed.

[0012] Furthermore, the scraper mechanism includes a connecting rod fixed to the outer periphery of the rotating shaft, one end of the connecting rod is fixedly connected to a scraper plate, and the outer side of the scraper plate is in contact with the inner wall of the screening tank.

[0013] Furthermore, two feed ports are fixed and connected to the top of the screening tank, and the feed ports are fixed and connected to the corresponding feed pipes.

[0014] Furthermore, the lifting mechanism is fixed to a U-shaped frame on the outer periphery of the mixing tank, a vertically arranged lifting cylinder is installed on the U-shaped frame, a vertically arranged guide rod is installed on the U-shaped frame, and the output end of the lifting cylinder and the top end of the guide rod are fixedly connected to the cross plate.

[0015] Furthermore, the stirring assembly includes a servo motor installed on the top of one end of the horizontal plate and a stirring rod rotating at the bottom of one end of the horizontal plate. The top end of the stirring rod extends to the top of the horizontal plate and is connected to the output shaft of the servo motor through a coupling.

[0016] Furthermore, a discharge pipe is installed at the center of the bottom of the mixing tank, and the discharge pipe is connected to the inside of the mixing tank.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the advantages of the present invention are:

[0019] (1) This solution, through the provision of a feed pipe 1 and in cooperation with a feed pump 1, can deliver the two components A and B raw materials processed in reactor A and reactor B respectively to the filter cylinder in the screening tank, and with the cooperation of the drive motor and the rotating shaft, the filter cylinder is rotated, and the raw materials inside are quickly separated from the agglomerated raw materials under the action of centrifugal force, thereby effectively avoiding the influence of the agglomerated raw materials on the product quality.

[0020] (2) In this solution, the lifting cylinder is started by setting up a lifting mechanism, and the guiding action of the guide rod enables the stirring component to move up and down. When the stirring component starts stirring, the stirring rod can stir up and down, which not only makes the A and B components of raw materials mixed more evenly, but also greatly improves the stirring efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0022] Figure 2 For the present invention Figure 1 Back structure diagram;

[0023] Figure 3 It is a schematic diagram of the partial split structure of the screening tank of the present invention;

[0024] Figure 4 It is a schematic diagram of the internal structure of the screening tank of the present invention;

[0025] Figure 5 It is a schematic diagram of the position structure of the mixing tank of the present invention.

[0026] Description of the numbers in the figure:

[0027] 1. Reactor A;

[0028] 2. Reactor B;

[0029] 3. Screening tank;

[0030] 4. Mixing tank;

[0031] 5. Feed pipe 1;

[0032] 6. Discharge port;

[0033] 7. Feed pipe 2;

[0034] 8. Boss;

[0035] 9. Rotating shaft;

[0036] 10. Filter cartridge;

[0037] 11. Mounting slot;

[0038] 12. Driving motor;

[0039] 13. scraper mechanism; 1301. connecting rod; 1302. scraper plate;

[0040] 14. lifting mechanism; 1401. U-shaped frame; 1402. lifting cylinder; 1403. guide rod;

[0041] 15. Horizontal board;

[0042] 16. stirring assembly; 1601. servo motor; 1602. stirring rod;

[0043] 17. Feed pump 1;

[0044] 18. Feed pump 2;

[0045] 19. Mounting frame;

[0046] 20. Feed port;

[0047] 21. Discharge pipe. DETAILED DESCRIPTION

[0048] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making creative work are within the scope of protection of the present invention.

[0049] Example:

[0050] See also Figure 1-5A production process for a dehydrated two-component PU paste, comprising an A reactor 1, a B reactor 2, a screening tank 3 and a mixing tank 4, wherein the discharge ports of the A reactor 1 and the B reactor 2 are both connected to the screening tank 3 through a feeding pipe 1 5, a discharge port 6 is provided at the bottom of the screening tank 3, two feeding pipes 2 7 are installed at the bottom of the discharge port 6, one end of the feeding pipe 2 7 is located at the inner side of the top opening of the mixing tank 4 and the port is downward, a boss 8 is provided on the bottom inner wall of the screening tank 3, the top of the boss 8 is rotatably connected to a rotating shaft 9 through a sealed bearing, and the rotating shaft 9 A filter cartridge 10 is fixedly connected to the top of the sieving tank 3, a mounting groove 11 is provided at the bottom of the sieving tank 3, a driving motor 12 is installed in the mounting groove 11, the bottom end of the rotating shaft 9 extends into the mounting groove 11 and is connected to the output shaft of the driving motor 12 through a coupling, a scraping mechanism 13 is arranged between the outer periphery of the rotating shaft 9 and the inner side wall of the sieving tank 3, a lifting mechanism 14 is arranged on the outer periphery of the mixing tank 4, a horizontal plate 15 is installed on the lifting mechanism 14, a stirring assembly 16 is arranged at one end of the horizontal plate 15, and the stirring assembly 16 is located directly above the mixing tank 4.

[0051] See also Figure 2 A feed pump 17 is installed on the feed pipe 15, and a feed pump 2 18 is installed on the feed pipe 27.

[0052] See also Figure 3 and Figure 4 The top inner wall of the screening tank 3 is fixedly connected with a mounting frame 19, and the inner wall of the mounting frame 19 is rotatably connected to the top outer periphery of the filter cartridge 10 through a bearing.

[0053] See also Figure 4 A plurality of filter holes are provided on the periphery and the bottom of the filter cartridge 10, and the plurality of filter holes are evenly distributed.

[0054] See also Figure 4 The scraping mechanism 13 includes a connecting rod 1301 fixed to the outer periphery of the rotating shaft 9, one end of the connecting rod 1301 is fixedly connected to a scraping plate 1302, and the outer side of the scraping plate 1302 is in contact with the inner wall of the screening tank 3.

[0055] See also Figure 3 Two feed ports 20 are fixed and connected to the top of the screening tank 3, and the feed ports 20 are fixed and connected to the corresponding feed pipe 5.

[0056] See also Figure 5 The lifting mechanism 14 is fixed to a U-shaped frame 1401 on the outer periphery of the mixing tank 4, a vertically arranged lifting cylinder 1402 is installed on the U-shaped frame 1401, a vertically arranged guide rod 1403 is installed on the U-shaped frame 1401, and the output end of the lifting cylinder 1402 and the top end of the guide rod 1403 are fixedly connected to the horizontal plate 15.

[0057] See also Figure 5The stirring assembly 16 includes a servo motor 1601 installed on the top of one end of the horizontal plate 15 and a stirring rod 1602 rotating at the bottom of one end of the horizontal plate 15. The top end of the stirring rod 1602 extends to the top of the horizontal plate 15 and is connected to the output shaft of the servo motor 1601 through a coupling.

[0058] See also Figure 5 A discharge pipe 21 is installed at the center of the bottom of the mixing tank 4, and the discharge pipe 21 is connected to the inside of the mixing tank 4.

[0059] When in use: the A and B components of raw materials are processed and formed respectively by using the A reactor 1 and the B reactor 2, and then the A and B components of raw materials processed and generated in the A reactor 1 and the B reactor 2 are transported to the filter cartridge 10 in the screening tank 3 by using the feed pipe 5 and in cooperation with the feed pump 17. At this time, the drive motor 12 is started, so that the rotating shaft 9 drives the filter cartridge 10 to rotate, and the raw materials inside are screened from the filter holes to the bottom of the screening tank 3 under the action of centrifugal force, and the agglomerated raw materials are left in the filter cartridge 10, thereby realizing the rapid separation of impurities and effectively avoiding the agglomerated raw materials from affecting the product quality. The amount of raw materials is affected. While the rotating shaft 9 rotates, the scraper plate 1302 scrapes the raw materials on the inner wall of the screening tank 3 to avoid waste of raw materials. After the raw materials are screened, the feed pipe 27 cooperates with the feed pump 218 to transport the two components A and B to the mixing tank 4, and the servo motor 1601 is started to drive the stirring rod 1602 to stir and mix the raw materials. During the stirring process, the lifting cylinder 1402 is started, and under the guidance of the guide rod 1403, the stirring rod 1602 can stir up and down, so that the two components A and B are fully stirred and mixed, which greatly improves the stirring efficiency.

[0060] Finally, it should be noted that in the description of the present invention, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0061] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0062] The above is only a preferred specific implementation of the present invention; however, the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solution and its improved conception within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A production process for a dehydrated two-component PU paste, comprising a reaction kettle A (1), a reaction kettle B (2), a screening tank (3) and a mixing tank (4), characterized in that: The discharge ports of the A reactor (1) and the B reactor (2) are both connected to the screening tank (3) through a feed pipe (5). The bottom of the screening tank (3) is provided with a discharge port (6). The bottom of the discharge port (6) is provided with two feed pipes (7). One end of the feed pipes (7) is located inside the top opening of the mixing tank (4) and the port is downward. The bottom inner wall of the screening tank (3) is provided with a boss (8). The top end of the boss (8) is rotatably connected to a rotating shaft (9) through a sealed bearing. The top end of the rotating shaft (9) is fixedly connected to a filter cartridge (10). A mounting groove (11) is provided at the bottom, a driving motor (12) is installed in the mounting groove (11), the bottom end of the rotating shaft (9) extends into the mounting groove (11) and is drivingly connected to the output shaft of the driving motor (12) through a coupling, a scraping mechanism (13) is provided between the outer periphery of the rotating shaft (9) and the inner side wall of the screening tank (3), a lifting mechanism (14) is provided at the outer periphery of the mixing tank (4), a horizontal plate (15) is installed on the lifting mechanism (14), a stirring assembly (16) is provided at one end of the horizontal plate (15), and the stirring assembly (16) is located directly above the mixing tank (4).

2. The production process of a dehydrated two-component PU paste according to claim 1, characterized in that: The first feeding pipe (5) is provided with a first feeding pump (17), and the second feeding pipe (7) is provided with a second feeding pump (18).

3. The production process of a dehydrated two-component PU paste according to claim 1, characterized in that: The top inner side wall of the screening tank (3) is fixedly connected with a mounting frame (19), and the inner side wall of the mounting frame (19) is rotatably connected to the top outer periphery of the filter cartridge (10) via a bearing.

4. The production process of a dehydrated two-component PU paste according to claim 1, characterized in that: The outer circumference and bottom of the filter cartridge (10) are both provided with a plurality of filter holes, and the plurality of filter holes are evenly distributed.

5. The production process of a dehydrated two-component PU paste according to claim 1, characterized in that: The scraper mechanism (13) comprises a connecting rod (1301) fixed to the outer periphery of the rotating shaft (9), one end of the connecting rod (1301) is fixedly connected to a scraper plate (1302), and the outer side of the scraper plate (1302) is in contact with the inner wall of the screening tank (3).

6. The production process of a dehydrated two-component PU paste according to claim 1, characterized in that: The top of the screening tank (3) is fixed with and connected to two feed ports (20), and the feed ports (20) are fixed with and connected to corresponding feed pipes one (5).

7. The production process of a dehydrated two-component PU paste according to claim 1, characterized in that: The lifting mechanism (14) is fixed to a U-shaped frame (1401) on the outer periphery of the mixing tank (4); a vertically arranged lifting cylinder (1402) is installed on the U-shaped frame (1401); a vertically arranged guide rod (1403) is installed on the U-shaped frame (1401); the output end of the lifting cylinder (1402) and the top end of the guide rod (1403) are both fixedly connected to the horizontal plate (15).

8. The production process of a dehydrated two-component PU paste according to claim 1, characterized in that: The stirring assembly (16) comprises a servo motor (1601) mounted on the top of one end of the horizontal plate (15) and a stirring rod (1602) rotating at the bottom of one end of the horizontal plate (15), wherein the top end of the stirring rod (1602) extends to the top of the horizontal plate (15) and is connected to the output shaft of the servo motor (1601) through a coupling.

9. The production process of a dehydrated two-component PU paste according to claim 1, characterized in that: A discharge pipe (21) is installed at the center of the bottom of the mixing tank (4), and the discharge pipe (21) is connected to the inside of the mixing tank (4).

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