Polyurethane coating degassing treatment device

Abstract

The utility model relates to the field of polyurethane coatings, in particular to a polyurethane coating degassing treatment device which comprises a reaction kettle, four groups of supporting columns are fixedly connected to the top end of the reaction kettle, a box body is fixedly connected to the top ends of the four groups of supporting columns, a discharging assembly is arranged between the bottom of the box body and the top of the reaction kettle, and a heating cavity is formed in the box body. A pipeline I is communicated between the heating cavity and the reaction kettle; a stirring assembly is arranged between the reaction kettle and the box body; when the reaction kettle is used, after high-temperature gas and water vapor are pumped into the heating cavity, the temperature in the heating cavity is increased, then a coating in the box body can be preheated, the inner wall of the box body can be continuously cleaned through rotation of the first scraping plate, the coating is prevented from being attached to the inner wall of the box body, and the inner wall of the reaction kettle can be continuously cleaned through rotation of the second scraping plate; the coating is prevented from adhering to the inner wall of the reaction kettle.

Description

Technical Field

[0001] The utility model relates to the field of polyurethane coatings, in particular to a polyurethane coating degassing treatment device. Background Art

[0002] Polyurethane coatings need to be degassed and dehydrated during the production process. Existing polyurethane coating degassing treatment devices, such as an environmentally friendly polyurethane coating production dehydration device with announcement number CN220276629U, include a mounting plate, a dehydration reactor is fixedly connected to the left side of the top of the mounting plate by bolts, a stirrer is connected to the top of the dehydration reactor by bolts, a discharge valve is connected to the bottom of the dehydration reactor, and a placement box is connected to the bottom of the discharge valve, a storage box is connected to the right side of the top of the mounting plate by bolts, a connecting air duct is connected to the left side of the top of the storage box, an electric valve is connected to the surface of the connecting air duct, a liquid pump is connected to the bottom of the rear side of the storage box, a discharge pipe of the liquid pump is connected to the top of the reactor, an exhaust duct is passed through the right side of the bottom of the storage box, a side of the exhaust duct away from the storage box passes through the mounting plate and is connected to an exhaust fan, and the air outlet end of the exhaust fan is connected to a purification mechanism.

[0003] When the above device is in use, high-temperature gas flows in the box through the fixed air duct and the heating branch pipe. The high-temperature gas can pre-heat the paint in the box during the flow, so that the temperature of the paint increases. However, the heating branch pipe is in the box, which will cause the paint to adhere to the heating branch pipe. Secondly, a liquid pump is required to transport the preheated paint in the box to the reactor, which has a high cost. For this reason, we propose a polyurethane paint degassing treatment device. Utility Model Content

[0004] The utility model aims to provide a polyurethane coating degassing treatment device, comprising a reactor, the top of the reactor is fixedly connected to four groups of support columns, the tops of the four groups of support columns are fixedly connected to a box body, a discharging assembly is arranged between the bottom of the box body and the top of the reactor, a heating chamber is opened in the body of the box body, a pipeline is connected between the heating chamber and the reactor, and a stirring assembly is arranged between the reactor and the box body.

[0005] Preferably: the discharging assembly includes a discharging pipe, the top end of the discharging pipe is connected to the bottom of the box body, the bottom of the discharging pipe is connected to the top of the reactor, the side wall of the discharging pipe is connected to two groups of storage tubes, a group of electric push rods are fixedly installed on the inner walls of the two groups of storage tubes, the telescopic ends of the two groups of electric push rods are respectively fixedly connected to a group of sealing blocks, and the two groups of sealing blocks can be slidably connected in the inner cavities of the two groups of storage tubes respectively.

[0006] Preferably: the stirring assembly includes a motor, the motor is fixedly mounted on the top of the box body, the driving end of the motor is fixedly connected to a rotating shaft, the rotating shaft is rotatably connected to the box body through a bearing, the rotating shaft is in the inner cavity of the reactor, the box body and the discharge pipe, a plurality of groups of stirring blades one and a plurality of groups of stirring blades two are fixedly connected to the outer wall of the rotating shaft, the plurality of groups of stirring blades one are fixedly connected to a scraper one, the stirring blade one is in the inner cavity of the box body, the scraper one fits the inner wall of the box body, the plurality of groups of stirring blades two are fixedly connected to a scraper two, the stirring blade two is in the inner cavity of the reactor, and the scraper two fits the inner wall of the reactor.

[0007] Preferably, the top of the box body is connected to a feed pipe 1, and the pipe mouth of the feed pipe 1 is threadedly connected to a sealing cover.

[0008] Preferably: the reactor is fixedly mounted on the top of the support plate, the upper end of the side wall of the reactor is connected to the second feed pipe, the pipe mouth of the second feed pipe is threadedly connected with a sealing cover, and a plurality of electric heating plates are installed in the reactor body.

[0009] Preferably: an exhaust fan is fixedly installed on the top of the support plate, a second pipe is connected between the air inlet end of the exhaust fan and the heating chamber, and the air outlet end of the exhaust fan is connected to a purification mechanism.

[0010] Preferably, the bottom of the reactor is connected to a discharge pipe, a valve is installed on the discharge pipe, the discharge pipe passes through the inner side of the support plate, and the four corners of the bottom of the support plate are fixedly connected to a group of support legs.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. When the utility model is used, after the high-temperature gas and water vapor are drawn into the heating chamber, the temperature in the heating chamber increases, and then the paint in the box can be preheated, and the motor drives the stirring blade to stir the paint in the inner cavity of the box so that the paint in the box is evenly heated, the scraper to continuously clean the inner wall of the box when it rotates, and prevent the paint from adhering to the inner wall of the box, and the stirring blade to stir the paint in the inner cavity of the reactor so that the paint in the reactor is evenly heated, and the scraper to continuously clean the inner wall of the reactor when it rotates, and prevent the paint from adhering to the inner wall of the reactor.

[0013] 2. Two sets of sealing blocks contact the outer wall of the rotating shaft at the same time. At this time, the two sets of sealing blocks will block the discharge pipe, preventing the paint in the box from entering the reactor through the discharge pipe; starting the two sets of electric push rods drives the two sets of sealing blocks to move away from each other, and the two sets of sealing blocks are collected in two sets of storage tubes. At this time, the preheated paint in the box enters the reactor through the discharge pipe, and there is no need to use a liquid pump to extract the material, so the use cost is low. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the discharging component;

[0016] Figure 3 Schematic diagram of the stirring assembly.

[0017] In the figure: 1. Reactor; 2. Support column; 3. Box; 4. Discharge assembly; 401. Discharge pipe; 402. Storage pipe; 403. Electric push rod; 404. Sealing block; 5. Heating chamber; 6. Pipeline 1; 7. Stirring assembly; 701. Motor; 702. Rotating shaft; 703. Stirring blade 1; 704. Scraper 1; 705. Stirring blade 2; 706. Scraper 2; 8. Feed pipe 1; 9. Support plate; 10. Feed pipe 2; 11. Electric heating plate; 12. Exhaust fan; 13. Pipeline 2; 14. Purification mechanism; 15. Discharge pipe; 16. Support leg. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1 - Figure 3 The figure shows a polyurethane coating degassing treatment device of the utility model, comprising a reactor 1, the top of the reactor 1 is fixedly connected to four groups of support columns 2, the tops of the four groups of support columns 2 are fixedly connected to a box 3, a discharging assembly 4 is provided between the bottom of the box 3 and the top of the reactor 1, a heating chamber 5 is provided in the box 3, a pipe 6 is connected between the heating chamber 5 and the reactor 1, and a stirring assembly 7 is provided between the reactor 1 and the box 3;

[0020] The discharging assembly 4 includes a discharging pipe 401, the top of which is connected to the bottom of the box body 3, the bottom of which is connected to the top of the reactor 1, the side wall of the discharging pipe 401 is connected to two groups of receiving tubes 402, and a group of electric push rods 403 are fixedly installed on the inner walls of the two groups of receiving tubes 402, and the telescopic ends of the two groups of electric push rods 403 are respectively fixedly connected to a group of sealing blocks 404, and the two groups of sealing blocks 404 can be slidably connected to the inner cavities of the two groups of receiving tubes 402. When in use, start the two sets of electric push rods 403 to drive the two sets of sealing blocks 404 to approach each other until the two sets of sealing blocks 404 fit together. At this time, the two sets of sealing blocks 404 will contact the outer wall of the rotating shaft 702. At the same time, the two sets of sealing blocks 404 will block the discharge pipe 401, preventing the paint in the box 3 from entering the reactor 1 through the discharge pipe 401. It should be noted that the two sets of sealing blocks 404 are provided with a semicircular groove at one end close to each other, and the semicircular groove matches the size of the rotating shaft 702.

[0021] The stirring assembly 7 includes a motor 701, which is fixedly installed on the top of the box body 3. The driving end of the motor 701 is fixedly connected to a rotating shaft 702. The rotating shaft 702 is rotatably connected to the box body 3 through a bearing. The rotating shaft 702 is located in the inner cavity of the reactor 1, the box body 3 and the discharge pipe 401. A plurality of groups of stirring blades 1 703 and a plurality of groups of stirring blades 2 705 are fixedly connected to an outer wall of the rotating shaft 702. The plurality of groups of stirring blades 1 703 are fixedly connected to a scraper 1 704. The stirring blades 1 703 are located in the inner cavity of the box body 3. The scraper 1 704 fits the inner wall of the box body 3. The plurality of groups of stirring blades 2 705 are fixedly connected to a scraper 2 706. The stirring blades 2 705 are located in the inner cavity of the reactor 1. The scraper 2 706 fits the inner wall of the reactor 1. When in use, the paint can be stirred by the stirring assembly 7.

[0022] The top of the box body 3 is connected with a feed pipe 8, and the pipe mouth of the feed pipe 8 is threadedly connected with a sealing cover; when in use, a proper amount of paint is added into the box body 3 through the feed pipe 8.

[0023] The reactor 1 is fixedly mounted on the top of the support plate 9, the upper end of the side wall of the reactor 1 is connected to the feed pipe 10, the pipe mouth of the feed pipe 10 is threadedly connected with a sealing cover, and multiple groups of electric heating plates 11 are installed in the reactor body of the reactor 1; when in use, a proper amount of paint is added into the reactor 1 through the feed pipe 10; the multiple groups of electric heating plates 11 are turned on to heat the paint in the reactor 1.

[0024] An exhaust fan 12 is fixedly installed on the top of the support plate 9, and a pipe 13 is connected between the air inlet end of the exhaust fan 12 and the heating chamber 5, and the air outlet end of the exhaust fan 12 is connected to a purification mechanism 14; when in use, the exhaust fan 12 is turned on, and the high-temperature gas and water vapor in the reactor 1 are sucked into the heating chamber 5 through the pipe 1 6.

[0025] A discharge pipe 15 is connected to the bottom of the reactor 1, and a valve is installed on the discharge pipe 15. The discharge pipe 15 passes through the inner side of the support plate 9, and a group of support legs 16 are fixedly connected to the four corners of the bottom of the support plate 9. After the degassing and dehydration treatment is completed, the valve on the discharge pipe 15 is opened, and the paint in the reactor 1 is discharged through the discharge pipe 15.

[0026] Working principle of the utility model: when in use, add a proper amount of paint into the box body 3 through the feed pipe 1 8, and add a proper amount of paint into the reactor 1 through the feed pipe 2 10; turn on the multiple sets of electric heating plates 11 to heat the paint in the reactor 1. When the paint in the reactor 1 is heated, the moisture in the paint will be evaporated and turned into water vapor, thereby completing the dehydration of the paint. At this time, turn on the exhaust fan 12, and draw the high-temperature gas and water vapor in the reactor 1 into the heating chamber 5 through the pipeline 1 6 to prevent the water vapor from mixing with the paint in the reactor 1, thereby completing the degassing of the paint; after the high-temperature gas and water vapor are drawn into the heating chamber 5, the temperature in the heating chamber 5 is increased, thereby preheating the paint in the box body 3, and then the gas in the heating chamber 5 flows into the purification mechanism 14 through the pipeline 2 13, and the purification mechanism 14 purifies and filters the gas; during use, starting the motor 701 will drive the rotating shaft 702 to rotate, and the rotating shaft 70 2 rotation will drive the stirring blade 1 703, the scraper 1 704, the stirring blade 2 705 and the scraper 2 706 to rotate simultaneously. The rotation of the stirring blade 1 703 will stir the paint in the inner cavity of the box body 3, so that the paint in the box body 3 is evenly heated. The rotation of the scraper 1 704 will continuously clean the inner wall of the box body 3 to prevent the paint from adhering to the inner wall of the box body 3. The rotation of the stirring blade 2 705 will stir the paint in the inner cavity of the reactor 1, so that the paint in the reactor 1 is evenly heated. The rotation of the scraper 2 706 will continuously clean the inner wall of the reactor 1 to prevent the paint from adhering to the inner wall of the reactor 1. After the degassing and dehydration treatment work is completed, the valve on the discharge pipe 15 is opened, and the paint in the reactor 1 is discharged through the discharge pipe 15. Then, the two groups of electric push rods 403 are started to drive the two groups of sealing blocks 404 to move away from each other, and the two groups of sealing blocks 404 are collected in the two groups of receiving pipes 402. At this time, the preheated paint in the box body 3 enters the reactor 1 through the discharge pipe 401.

[0027] It should be noted that the purification mechanism 14 and the exhaust fan 12 are both existing technologies. Reference can be made to the purification mechanism and exhaust fan in a dehydration device for environmentally friendly polyurethane coating production disclosed in publication No. CN220276629U; the reactor 1 and the box body 3 are divided into an inner shell and an outer shell (not specifically drawn in the accompanying drawings), the inner shell is a heat-conducting material, and the outer wall is a heat-insulating material.

[0028] The above content is a further detailed description of the utility model in combination with specific implementation methods. It cannot be determined that the specific implementation of the utility model is limited to these descriptions. For ordinary technicians in the technical field to which the utility model belongs, without departing from the concept of the utility model, they can also make several simple deductions or substitutions, which should be regarded as belonging to the scope of protection determined by the claims submitted for the utility model.

Claims

1. A polyurethane coating degassing treatment device, comprising a reaction kettle (1), characterized in that: The top of the reactor (1) is fixedly connected to four groups of support columns (2), and the tops of the four groups of support columns (2) are fixedly connected to a box body (3). A discharge assembly (4) is provided between the bottom of the box body (3) and the top of the reactor (1). A heating chamber (5) is provided inside the box body (3). A pipe (6) is connected between the heating chamber (5) and the reactor (1). A stirring assembly (7) is provided between the reactor (1) and the box body (3).

2. A polyurethane coating degassing treatment device according to claim 1, characterized in that: The discharge assembly (4) comprises a discharge pipe (401), the top end of the discharge pipe (401) is connected to the bottom of the box body (3), the bottom of the discharge pipe (401) is connected to the top of the reactor (1), the side wall of the discharge pipe (401) is connected to two groups of storage tubes (402), a group of electric push rods (403) are fixedly installed on the inner walls of the two groups of storage tubes (402), the telescopic ends of the two groups of electric push rods (403) are respectively fixedly connected to a group of sealing blocks (404), and the two groups of sealing blocks (404) can be slidably connected in the inner cavities of the two groups of storage tubes (402).

3. A polyurethane coating degassing treatment device according to claim 1, characterized in that: The stirring assembly (7) comprises a motor (701), the motor (701) is fixedly mounted on the top of the housing (3), the driving end of the motor (701) is fixedly connected to a rotating shaft (702), the rotating shaft (702) is rotatably connected to the housing (3) via a bearing, the rotating shaft (702) is located in the inner cavity of the reaction kettle (1), the housing (3) and the discharge pipe (401), and a plurality of stirring blades (701) are fixedly connected to the outer wall of the rotating shaft (702). 3) and multiple groups of stirring blades (705), multiple groups of stirring blades (703) are fixedly connected to scraper (704), the stirring blades (703) are in the inner cavity of the box (3), the scraper (704) is in contact with the inner wall of the box (3), multiple groups of stirring blades (705) are fixedly connected to scraper (706), the stirring blades (705) are in the inner cavity of the reaction kettle (1), and the scraper (706) is in contact with the inner wall of the reaction kettle (1).

4. A polyurethane coating degassing treatment device according to claim 1, characterized in that: The top of the box body (3) is connected to a feed pipe (8), and the pipe mouth of the feed pipe (8) is threadedly connected to a sealing cover.

5. A polyurethane coating degassing treatment device according to claim 1, characterized in that: The reaction kettle (1) is fixedly mounted on the top of a support plate (9); the upper end of the side wall of the reaction kettle (1) is connected to a second feed pipe (10); the pipe mouth of the second feed pipe (10) is threadedly connected to a sealing cover; and a plurality of groups of electric heating plates (11) are installed in the kettle body of the reaction kettle (1).

6. A polyurethane coating degassing treatment device according to claim 5, characterized in that: An exhaust fan (12) is fixedly mounted on the top of the support plate (9), a second pipe (13) is connected between the air inlet end of the exhaust fan (12) and the heating chamber (5), and an air outlet end of the exhaust fan (12) is connected to a purification mechanism (14).

7. A polyurethane coating degassing treatment device according to claim 1, characterized in that: The bottom of the reactor (1) is connected to a discharge pipe (15), on which a valve is installed. The discharge pipe (15) passes through the inner side of the support plate (9), and the four corners of the bottom of the support plate (9) are fixedly connected to a group of support legs (16).

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