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Polyurethane waterproof coating production and processing equipment and process

A polyurethane waterproofing and processing equipment technology, applied in polyurea/polyurethane coatings, coatings, feeding devices, etc., can solve the problems of affecting the reaction effect, not being able to be used, long dehydration time of polyurethane raw materials, etc., and achieve the effect of avoiding residues

Inactive Publication Date: 2021-10-01
王国军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The prior art has the following deficiencies: in the existing polyurethane waterproof coating production line, the batching, dehydration, and reaction processes are mostly carried out in a reactor, and the next process must be waited for before the previous process is completed, and the production efficiency is low. The dehydration time is very long, usually about 2-3 hours, before this period of time cannot be used, and the powder storage device in the batching process will make the powder pile up together, making the powder easy to be damp and affecting the reaction effect

Method used

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  • Polyurethane waterproof coating production and processing equipment and process
  • Polyurethane waterproof coating production and processing equipment and process
  • Polyurethane waterproof coating production and processing equipment and process

Examples

Experimental program
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Effect test

Embodiment 1

[0045] Embodiment 1, with reference to attached Figure 1-11 , a kind of polyurethane waterproof coating production and processing equipment provided by the present invention, comprises reactor one 100, reactor two 200, feeding kettle 300 and workbench 400, and reactor one 100, reactor two 200 and feeding kettle 300 are arranged side by side in the working The top of platform 400 also includes: the pneumatic conveying device 270 installed on the top of reaction kettle 200 and the powder conveying device 330 installed on the inner wall of feeding kettle 300;

[0046] Pneumatic delivery device 270 includes:

[0047] The negative pressure tank 271 fixedly installed on the top of the reaction kettle 200, specifically, the top of the negative pressure tank 271 is fixedly equipped with a tee pipe 275, the left side of the negative pressure tank 271 is fixedly installed with a feed sleeve 273, and the inner wall of the negative pressure tank 271 is set There is a mesh column 278, th...

Embodiment 2

[0061] A kind of polyurethane waterproof coating production and processing technology: its processing flow is,

[0062] Step 1: Put the metered polyether into the reaction kettle 100 through the feed pipe 130 and the nozzle 110, start stirring through the stirring rod 220, and connect different cold and heat sources through the tank interlayer 250 for cyclic heating or Cool the reaction, heat up to above 100°C, turn on the vacuum pump 450 to drag the water from the reaction kettle 100, the vacuum degree reaches above 0.09, and lasts for 2 hours;

[0063]Step 2: Cool down to 54-56°C, add TDI according to the amount, turn off the vacuum pump 450 after the vacuum degree reaches 0.09, and raise the temperature by about 1-3°C per minute, when the temperature is not rising, heat up to 80°C and keep it for 2 hours, then cool down to 40°C °C, turn off the stirring rod 220, turn on the vacuum pump 450 to drag air for 15 minutes, and turn off the vacuum pump 450;

[0064] Step 3: While...

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Abstract

The invention belongs to the technical field of waterproof coatings, and particularly relates to polyurethane waterproof coating production and processing equipment and process. The polyurethane waterproof coating production and processing equipment comprises a first reaction kettle, a second reaction kettle, a feeding kettle and a workbench, and the first reaction kettle, the second reaction kettle and the feeding kettle are arranged on the top of the workbench side by side. The equipment further comprises a pneumatic conveying device mounted at the top of the second reaction kettle, and a powder conveying device mounted on the inner wall of the feeding kettle. The equipment has the beneficial effects that the first reaction kettle and the second reaction kettle are used for processing at the same time, after the reaction is completed, a first discharging valve, a third hydraulic valve and a metering pump are opened, and the metering pump inputs materials in the first reaction kettle into the second reaction kettle through a conveying pipe and a third pipe opening to be mixed with materials in the second reaction kettle, rapid batching is performed through the pneumatic conveying device and the powder conveying device, so that the three stages of batching, grinding and reaction are not influenced by one another and can be performed at the same time, the working time is effectively utilized, and the effects of multi-process continuous production and rapid batching are achieved.

Description

technical field [0001] The invention relates to the technical field of waterproof coatings, in particular to a production and processing equipment for polyurethane waterproof coatings and a process thereof. Background technique [0002] Polyurethane waterproof coatings are prepolymers containing isocyanate groups formed by addition polymerization of isocyanate and polyether, together with catalysts, anhydrous additives, anhydrous fillers, solvents, etc., and processed through mixing and other processes One-component polyurethane waterproof coating, polyurethane waterproof coating is a one-component environmentally friendly waterproof coating for liquid construction. It is based on imported polyurethane prepolymer and has no additives such as tar and asphalt. Cures on contact to form a solid, tough, seamless, integral barrier film on the surface of the substrate. [0003] The prior art has the following deficiencies: in the existing polyurethane waterproof coating production...

Claims

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Application Information

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IPC IPC(8): B01J19/18B01J4/00C09D175/08C08G18/76C08G18/66C08G18/48C08G18/32C08G18/10
CPCB01J19/1862B01J4/00C09D175/08C08G18/7621C08G18/48C08G18/10C08G18/3814
Inventor 王国军
Owner 王国军