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A method for recovering waste gas from the production of soft-touch leather coatings

A leather coating and exhaust gas recovery technology, applied in the field of soft-touch leather coatings, can solve the problems of poor cooling environment and substandard exhaust gas temperature, and achieve the effect of increasing discharge volume and sufficient cooling

Active Publication Date: 2021-12-24
瑞润化工(南通)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the actual use process, the inventors found that improving the long-term use of the heat exchanger leads to the deterioration of the refrigeration environment inside, which in turn leads to the problem that the output exhaust gas temperature is not up to standard

Method used

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  • A method for recovering waste gas from the production of soft-touch leather coatings
  • A method for recovering waste gas from the production of soft-touch leather coatings
  • A method for recovering waste gas from the production of soft-touch leather coatings

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Experimental program
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Effect test

Embodiment 1

[0081] Such as figure 1 As shown, a method for recovering waste gas from the production of soft-touch leather coatings, including:

[0082] In the first step, the waste gas is blasted into the work, and the waste gas containing heat is blown into the heat exchanger 1b through the fan 1a;

[0083] The second step is exhaust gas cooling. The heat-containing exhaust gas performs preliminary cooling of the exhaust gas in the heat exchanger 1b. The exhaust gas is transported in an S shape under the action of the first rotating assembly 31a and the second rotating assembly 31b in the heat exchanger 1b. Inside, the condensed liquid is finally collected from the liquid outlet, and the exhaust gas passing through the heat exchanger 1b is transmitted to the three-way output;

[0084] The third step is to switch over the waste gas screening. When the temperature control accuracy meter detects that the temperature of the air flow output from the heat exchanger 1b is higher than a certain...

Embodiment 2

[0102] Such as figure 2 As shown, the industrial waste gas high-efficiency recovery system includes a fan 1a, a heat exchanger 1b, a rotary separator 1c, a cooling tower 1d, and a gas-liquid mixing tower 1e. The exhaust gas is directed to the switching mechanism 2 for automatic flow splitting, the cooling mechanism 3 arranged in the heat exchanger 1b and driven along the length direction of the heat exchanger 1b, and used to control the heat exchanger 1b and the rotary separator 1c The heat dissipation mechanism 4 for pre-cooling the water after internal heating, the water outlet 4a of the heat dissipation mechanism 4 is communicated with the cooling tower 1d and its water inlet 4b is communicated with the heat exchanger 1b;

[0103] The switching mechanism 2 includes a tee 21 arranged on the upper end of the heat exchanger 1b, a switching plate 22 installed in the center of the transition of the tee 21, one end communicates with the tee 21 and the other end communicates with...

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Abstract

The invention relates to a method for recovering waste gas from the production of soft-touch leather coatings, comprising: Step 1, waste gas blowing; Step 2, waste gas cooling; Step 3, waste gas screening and switching; Step 4, adjusting the blast flow rate ; Step 5, condenser detection work; Step 6, water circulation work, synchronous with the step 3, the fifth transmission component is driven by the drive mechanism, so that the relatively high temperature water in the water tank is stirred by the stirring component Perform rapid stirring to increase the flow rate of water in the water tank so that the water in it can dissipate heat quickly, and at the same time use the water that has lost heat to cool down the exhaust gas in the first connecting pipe; step 7, gas-liquid separation work; step 8, purification work ; The present invention solves the technical problem that the long-term use of the heat exchanger leads to the deterioration of the refrigeration environment inside it, which in turn leads to the temperature of the output exhaust gas not reaching the standard.

Description

technical field [0001] The invention relates to the technical field of soft-touch leather coatings, in particular to a method for recovering waste gas from production of soft-touch leather coatings. Background technique [0002] Leather coatings refer to coatings used to protect and decorate leather. Leather paint requires fast drying, good gloss, soft performance, and is not easy to crack when applied on the surface. Leather nitro paints of various colors are made of nitrocellulose and alkyd resin dissolved in volatile organic solvents, and added with pigments and enhancers. Made of plastic. Soft nitro varnish is a colloidal solution made of cellulose nitrate, long-oil acid resin and plasticizer dissolved in volatile organic solvents. It is used for scraping or spraying the surface of soft objects such as tape measure and leather. Polyurethane varnish can also be used on the surface of leather products. The paint has good water resistance, oil resistance and high gloss. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/78B01D5/00
Inventor 林易
Owner 瑞润化工(南通)有限公司
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