Polyurethane adhesive reaction kettle

Abstract

The utility model discloses a polyurethane adhesive reaction kettle which comprises a reaction kettle body, a heater, a stirring part, a liquid inlet part and a liquid outlet part, the liquid inlet part comprises a first liquid inlet, a first pipe body, a first flow control valve, a second liquid inlet, a second pipe body and a second flow control valve; the liquid outlet part comprises a liquid outlet, a kettle bottom liquid outlet, a first on-off valve, a liquid outlet pipe body, an air pump pipe body and a first air pump; according to the utility model, the first flow control valve and the second flow control valve are used for controlling the liquid flow rate of the first liquid inlet and the liquid flow rate of the second liquid inlet; the heating part and the stirring part are beneficial to smooth proceeding of the reaction; the cleaning part can be used for automatically cleaning residual colloid in the reaction kettle body and the pipe body, so that the service life of equipment is prolonged; and the control part, the pressure transmitter and the temperature transmitter realize real-time detection and data feedback, so that the intelligence and the safety of the reaction kettle are enhanced.

Description

Technical Field

[0001] The utility model relates to the field of glue reactors, and particularly to a polyurethane glue reactor. Background Art

[0002] Polyurethane glue is a kind of glue containing urethane groups and isocyanate groups in its molecular chain. It has high reactivity and can be cured at room temperature. It has excellent adhesive properties to various materials such as metals, rubbers, glasses, ceramics, plastics, woods, fabrics, and leathers. The main characteristics of polyurethane glue include high strength, wear resistance, low temperature resistance, and good flexibility.

[0003] In the production of polyurethane glue, the reactor is an important device for carrying out chemical reactions. Traditional reactors may have some problems during operation, such as difficult to precisely control reaction conditions, low production efficiency, unstable product quality, and difficult equipment cleaning. These problems not only affect production efficiency and product quality but also may shorten the service life of the equipment and increase maintenance costs. Content of the Utility Model

[0004] In view of a part of the defects of the prior art, the utility model provides a polyurethane glue reactor, including: a reactor body, a heater, a stirring part, a liquid inlet part, and a liquid outlet part; the heat pipe of the heater is hermetically connected to the side wall of the reactor body; a feeding port is provided on the reactor body.

[0005] The stirring part includes: a motor, a mounting plate, and a stirring head; the motor is threadedly connected to the mounting plate; the mounting plate is fixedly connected to the reactor body; the stirring head is fixedly connected to the output shaft of the motor.

[0006] The liquid inlet part includes: a first liquid inlet, a first pipe body, a first flow control valve, a second liquid inlet, a second pipe body, and a second flow control valve; the first liquid inlet is hermetically connected to the side wall of the reactor body; one end of the first pipe body is provided with a first material port for docking external feed; the first pipe body is hermetically connected to the first liquid inlet and the first flow control valve; the second liquid inlet is hermetically connected to the other side wall of the reactor body; one end of the second pipe body is provided with a second material port for docking external feed; the second pipe body is fixedly connected to the second liquid inlet and the second flow control valve.

[0007] The liquid outlet part includes: a liquid outlet, a bottom liquid outlet of the kettle, a first on-off valve, a liquid outlet pipe body, an air pump pipe body, and a first air pump; both ends of the liquid outlet pipe body are hermetically connected to the liquid outlet and the bottom liquid outlet of the kettle respectively; the first on-off valve is hermetically connected to the liquid outlet pipe body; the first on-off valve is close to the bottom liquid outlet of the kettle; both ends of the air pump pipe body are hermetically connected to the liquid outlet pipe body and the first air pump respectively.

[0008] In this technical solution, an isocyanate liquid is introduced into the first liquid inlet; a polyether polyol liquid is introduced into the second liquid inlet; the feeding port is used to add a catalyst or an auxiliary agent required for the reaction; the first flow control valve is used to control the liquid flow rate of the first liquid inlet; the second flow control valve is used to control the liquid flow rate of the second liquid inlet; after adding the liquids into the reaction kettle, the first flow control valve and the second flow control valve are closed; the stirring system is turned on, and after being evenly mixed, the catalyst or the auxiliary agent is added, and then the heating reaction is started, and the reaction temperature is controlled between 60 °C and 80 °C, and the reaction time is about 45 minutes to 1 hour; after the reaction is completed, the heater and the stirring part remain working; the first on-off valve is opened, and the polyurethane glue generated by the reaction flows through the bottom liquid outlet of the kettle to the liquid outlet pipe body; the first air pump works to push the polyurethane glue inside the liquid outlet pipe body to accelerate the flow towards the liquid outlet; after the liquid outlet is completed, the heater and the stirring part are turned off.

[0009] In a specific embodiment, the reaction kettle further includes a cleaning part, including: a second air pump, a cleaning pipe body, a second on-off valve, and a cleaning valve; the second air pump is hermetically connected to the cleaning pipe body; the second on-off valve is hermetically connected to the cleaning pipe body, respectively close to the first air pump and the second air pump; the cleaning valve is hermetically connected to the liquid outlet pipe.

[0010] In this technical solution, the cleaning part is used to clean the reaction kettle after the reaction is completed; the residual liquids inside the reaction kettle body and the liquid inlet part and the liquid outlet part; during cleaning, the first liquid inlet and the second liquid inlet are filled with cleaning liquid, and the stirring part is turned on. When the amount of cleaning liquid is sufficient, the first on-off valve and the cleaning valve are closed; the second on-off valve, the first air pump, and the second air pump are opened; driven by the first air pump and the second air pump, the cleaning liquid cleans the reaction kettle, extending the service life of the equipment.

[0011] In a specific embodiment, the polyurethane glue reaction kettle further includes a control part, and the control part is electrically connected to the first flow control valve, the second flow control valve, the first on-off valve, the second on-off valve, and the cleaning valve;

[0012] In this technical solution, the control part is used to centrally control the liquid flow direction in the reaction kettle body; it can realize the automatic control of the liquid inlet, liquid outlet, and cleaning processes, increasing the operation convenience and accuracy, and can also effectively reduce the safety hazards caused by manual operation.

[0013] In a specific embodiment, a pressure transmitter and a temperature transmitter are provided on the outer wall of the reaction kettle body, and both are hermetically connected to the reaction kettle body.

[0014] In this technical solution, the temperature inside the reaction kettle body needs to be controlled during the preparation reaction of the polyurethane glue; during cleaning, the power of the air pump needs to be controlled; the pressure transmitter and the temperature transmitter are used to detect the pressure and temperature values inside the reaction kettle body in real time, enhancing the safety of the equipment.

[0015] In a specific embodiment, the number of pressure transmitters is multiple, and they are hermetically connected to different heights of the reaction kettle body.

[0016] In this technical solution, hermetically connecting the pressure transmitters to different heights of the reaction kettle body helps to detect the pressure parameters inside the reaction kettle body in real time; through the data feedback of the pressure transmitters, the control unit can dynamically adjust the operating parameters of the reaction kettle body according to the pressure changes at different heights, such as the liquid inlet speed, stirring speed, and heating temperature, etc., so as to optimize the reaction efficiency and product quality.

[0017] In a specific embodiment, both the pressure transmitter and the temperature transmitter are electrically connected to the control unit.

[0018] In this technical solution, the pressure transmitter and the temperature transmitter can detect data in real time and transmit the data to the control unit, forming a feedback system; the control unit intelligently controls the on / off of the first flow control valve, the second flow control valve, the first on / off valve, the second on / off valve, and the cleaning valve through the feedback data and the built-in control algorithm; realizing automatic control, effectively preventing and handling abnormal conditions, and improving the automation level of the reaction kettle.

[0019] The beneficial effects of the present utility model are: through the first flow control valve and the second flow control valve, the liquid flow rates of the first liquid inlet and the second liquid inlet can be controlled; the heating part and the stirring part contribute to the smooth progress of the reaction; after the reaction is completed, the first on / off valve is opened, and the first air pump works to pump the polyurethane glue out of the liquid outlet; the reaction conditions can be precisely controlled, the heater and the stirring part improve the production efficiency, and the product quality and consistency are improved; the cleaning part can automatically clean the residual colloid inside the reaction kettle body and the pipe body, extending the service life of the equipment; the control unit is electrically connected to the on / off valve and the flow control valve to realize automatic control; the pressure transmitter and the temperature transmitter realize real-time detection and data feedback, enhancing the intelligence and safety of the reaction kettle. Description of the Drawings

[0020] Figure 1 It is a schematic structural diagram of a polyurethane glue reaction kettle in a specific embodiment of the present utility model;

[0021] Figure 2It is a partial sectional view of a polyurethane glue reaction kettle in a specific implementation of the present utility model;

[0022] Figure 3 It is a schematic structural diagram of the liquid inlet part and the liquid discharge part of a polyurethane glue reaction kettle in a specific implementation of the present utility model. Specific implementation manner

[0023] The present utility model will be further described below in conjunction with the drawings and embodiments:

[0024] Such as Figures 1 - 3 In a polyurethane glue reaction kettle provided in the first embodiment of the present utility model, it includes: a reaction kettle body 100, a heater 200, a stirring part 300, a liquid inlet part 400, and a liquid outlet part 500; the heat pipe of the heater 200 is hermetically connected to the side wall of the reaction kettle body 100; a feeding port 101 is provided on the reaction kettle body 100;

[0025] The stirring part 300 includes: a motor 301, a mounting plate 302, and a stirring head 303; the motor 301 is threadedly connected to the mounting plate 302; the mounting plate 302 is fixedly connected to the reaction kettle body 100; the stirring head 303 is fixedly connected to the output shaft of the motor 301;

[0026] The liquid inlet part 400 includes: a first liquid inlet 401, a first pipe body 402, a first flow control valve 403, a second liquid inlet 404, a second pipe body 405, and a second flow control valve 406; the first liquid inlet 401 is hermetically connected to the side wall of the reaction kettle body 100; one end of the first pipe body 402 is provided with a first material port 4021 for docking with external feed; the first pipe body 402 is hermetically connected to the first liquid inlet 401 and the first flow control valve 403; the second liquid inlet 404 is hermetically connected to the other side wall of the reaction kettle body 100; one end of the second pipe body 405 is provided with a second material port 4051 for docking with external feed; the second pipe body 405 is fixedly connected to the second liquid inlet 404 and the second flow control valve 406;

[0027] The liquid outlet part 500 includes: a liquid outlet 501, a bottom liquid outlet 502, a first on-off valve 503, a liquid outlet pipe body 504, an air pump pipe body 505, and a first air pump 506; both ends of the liquid outlet pipe body 504 are hermetically connected to the liquid outlet 501 and the bottom liquid outlet 502 respectively; the first on-off valve 503 is hermetically connected to the liquid outlet pipe body 504; the first on-off valve 503 is close to the bottom liquid outlet 502; both ends of the air pump pipe body 505 are hermetically connected to the liquid outlet pipe body 504 and the first air pump 506 respectively.

[0028] In this embodiment, an isocyanate liquid is introduced into the first liquid inlet 401; a polyether polyol liquid is introduced into the second liquid inlet 404; the feeding port 101 is used to add a catalyst or an auxiliary agent required for the reaction; the first flow control valve 403 is used to control the liquid flow rate of the first liquid inlet 401; the second flow control valve 406 is used to control the liquid flow rate of the second liquid inlet 404; after adding the liquids into the reaction kettle, the first flow control valve 403 and the second flow control valve 406 are closed; the stirring system is turned on, and after the mixture is evenly mixed, the catalyst or the auxiliary agent is added, and then the heating reaction is started, and the reaction temperature is controlled within a certain range, and the reaction time is about 45 minutes to 1 hour; after the reaction is completed, the heater 200 and the stirring part 300 remain working; the first on-off valve 503 is opened, and the polyurethane glue generated by the reaction flows through the bottom liquid outlet 502 to the liquid outlet pipe body 504; the first air pump 506 works to push the polyurethane glue inside the liquid outlet pipe body 504 to accelerate the flow to the liquid outlet 501; after the liquid discharge is completed, the heater 200 and the stirring part 300 are turned off;

[0029] Furthermore, the reaction kettle further includes a cleaning part 600, including: a second air pump 601, a cleaning pipe body 602, a second on-off valve 603, and a cleaning valve 604; the second air pump 601 is airtightly connected to the cleaning pipe body 602; the second on-off valve 603 is airtightly connected to the cleaning pipe body 602, and is respectively close to the first air pump 506 and the second air pump 601; the cleaning valve 604 is airtightly connected to the liquid outlet pipe body 504.

[0030] In this embodiment, the cleaning part 600 is used to clean the reaction kettle after the reaction is completed; the residual liquids inside the reaction kettle body 100 and the liquid inlet part 400 and the liquid outlet part 500; during cleaning, the first liquid inlet 401 and the second liquid inlet 404 are filled with a cleaning liquid, the stirring part 300 is turned on, and when the amount of the cleaning liquid is sufficient; the first on-off valve 503 and the cleaning valve 604 are closed; the second on-off valve 603 and the first air pump 506 and the second air pump 601 are opened; driven by the first air pump 506 and the second air pump 601, the cleaning liquid cleans the reaction kettle, extending the service life of the equipment.

[0031] Furthermore, the polyurethane glue reaction kettle further includes a control part 700, and the control part 700 is electrically connected to the first flow control valve 403, the second flow control valve 406, the first on-off valve 503, the second on-off valve 603, and the cleaning valve 604;

[0032] In this embodiment, the control unit 700 is used to centrally control the liquid flow direction in the reactor body 100; it can realize the automatic control of the liquid inlet, liquid outlet and cleaning processes, improving the operation convenience and accuracy, and effectively reducing the safety hazards caused by manual operation.

[0033] Furthermore, pressure transmitters 701 and temperature transmitters 702 are provided on the outer wall of the reactor body 100, and are hermetically connected to the reactor body 100.

[0034] In this embodiment, the temperature inside the reactor body 100 needs to be controlled during the preparation reaction of polyurethane glue; during cleaning, the power of the air pump needs to be controlled; the pressure transmitter 701 and the temperature transmitter 702 are used to detect the pressure and temperature values inside the reactor body 100 in real time, enhancing the safety of the equipment.

[0035] Furthermore, the number of the pressure transmitters 701 is multiple, and they are hermetically connected to different heights of the reactor body 100.

[0036] Preferably, in this embodiment, two pressure transmitters, one high and one low, are used in cooperation to jointly detect the pressure value in the reactor.

[0037] In this embodiment, hermetically connecting the pressure transmitter 701 to different heights of the reactor body 100 helps to detect the pressure parameters inside the reactor body 100 in real time; through the data feedback of the pressure transmitter 701, the control unit 700 can dynamically adjust the operation parameters of the reactor body 100 according to the pressure changes at different heights, such as the liquid inlet speed, stirring speed and heating temperature, etc., so as to optimize the reaction efficiency and product quality.

[0038] Furthermore, both the pressure transmitter 701 and the temperature transmitter 702 are electrically connected to the control unit 700.

[0039] In this embodiment, the pressure transmitter 701 and the temperature transmitter 702 can detect data in real time and transmit the data to the control unit 700 to form a feedback system; the control unit 700 intelligently controls the on / off of the first flow control valve 403, the second flow control valve 406, the first on / off valve 503, the second on / off valve 603, and the cleaning valve 604 through the feedback data and the built-in control algorithm; realizing automatic control, effectively preventing and handling abnormal conditions, and improving the automation level of the reactor. The preferred specific embodiments of the present invention have been described in detail above. It should be understood that those of ordinary skill in the art can make many modifications and variations based on the concept of the present invention without creative labor. Therefore, all technical solutions that can be obtained by those skilled in the art in the technical field based on the concept of the present invention through logical analysis, reasoning, or limited experiments on the basis of the prior art should be within the protection scope determined by the claims.

Claims

1. A polyurethane glue reactor, characterized in that, It includes: A reactor body, a heater, a stirring part, a liquid inlet part, and a liquid outlet part; The heat pipe of the heater is hermetically connected to the side wall of the reactor body; a feeding port is provided on the reactor body; The stirring part includes: a motor, a mounting plate, and a stirring head; the motor is threadedly connected to the mounting plate; the mounting plate is fixedly connected to the reactor body; the stirring head is fixedly connected to the output shaft of the motor; The liquid inlet part includes: a first liquid inlet, a first pipe body, a first flow control valve, a second liquid inlet, a second pipe body, and a second flow control valve; the first liquid inlet is hermetically connected to the side wall of the reactor body; one end of the first pipe body is provided with a first material port for docking with external feed; the first pipe body is hermetically connected to the first liquid inlet and the first flow control valve; the second liquid inlet is hermetically connected to the other side wall of the reactor body; one end of the second pipe body is provided with a second material port for docking with external feed; the second pipe body is fixedly connected to the second liquid inlet and the second flow control valve; The liquid outlet part includes: a liquid outlet, a bottom liquid outlet of the kettle, a first on-off valve, a liquid outlet pipe body, an air pump pipe body, and a first air pump; both ends of the liquid outlet pipe body are hermetically connected to the liquid outlet and the bottom liquid outlet of the kettle respectively; the first on-off valve is hermetically connected to the liquid outlet pipe body; the first on-off valve is close to the bottom liquid outlet of the kettle; both ends of the air pump pipe body are hermetically connected to the liquid outlet pipe body and the first air pump respectively.

2. The polyurethane glue reactor according to claim 1, characterized in that, The reactor further includes a cleaning part, including: a second air pump, a cleaning pipe body, a second on-off valve, and a cleaning valve; the second air pump is hermetically connected to the cleaning pipe body; the second on-off valve is hermetically connected to the cleaning pipe body, respectively close to the first air pump and the second air pump; the cleaning valve is hermetically connected to the liquid outlet pipe.

3. The polyurethane glue reactor according to claim 2, characterized in that, The polyurethane glue reactor further includes a control part, and the control part is electrically connected to the first flow control valve, the second flow control valve, the first on-off valve, the second on-off valve, and the cleaning valve.

4. The polyurethane glue reactor according to claim 3, characterized in that, A pressure transmitter and a temperature transmitter are provided on the outer wall of the reactor body, and both are hermetically connected to the reactor body.

5. A polyurethane glue reactor according to claim 4, characterized in that, The number of the pressure transmitters is multiple, and they are hermetically connected at different heights of the reactor body.

6. The polyurethane glue reactor according to claim 4, characterized in that, Both the pressure transmitter and the temperature transmitter are electrically connected to the control part.

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