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A smoke treatment device and treatment method in the extrusion molding process after separation of paper and plastic

A paper-plastic separation and molding process technology, applied in the separation method, dispersed particle separation, chemical instruments and methods, etc., can solve the problems of complex smoke components, secondary pollution, etc., and achieve the effect of improving the treatment effect and strengthening the treatment effect

Inactive Publication Date: 2017-07-04
马鞍山华盛环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Aiming at the problems in the prior art that the smoke generated during the extrusion molding process of plastic-skin fragments after separation of waste carton paper and plastics has complex components and is likely to cause secondary pollution, the present invention provides a smoke treatment device during the extrusion molding process after separation of paper and plastics and processing method

Method used

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  • A smoke treatment device and treatment method in the extrusion molding process after separation of paper and plastic

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Effect test

Embodiment 1

[0042] A kind of smoke treatment device in the extrusion molding process after the separation of paper and plastic in this embodiment, such as figure 1 As shown, it includes a chemical solution treatment box 1, a spray tower 2 and an adsorption box 3. The chemical solution treatment box 1 is a closed vacuum box divided into four vertical compartments. From left to right, the first compartment 11, the second compartment Two compartments 12, the third compartment 13 and the fourth compartment 14, wherein: the solution in the first compartment 11 is a calcium carbonate solution with a concentration of 0.1%; the second compartment 12 and the third compartment 13 are hygienic Ball dissolving solution, add-on is 30 grams / kg, is sodium hydroxide and calcium hydroxide mixed solution in the 4th compartment 14, and hydroxide ion concentration is 3%; The liquid level of chemical solution in chemical solution treatment box 1 is 60% of the height of the box; the first compartment 11 is pro...

Embodiment 2

[0051] The smoke treatment device in the extrusion molding process after the separation of paper and plastic in this embodiment has the same basic structure as that of Embodiment 1, except that the connecting elbow 15 is inserted into the nozzle below the liquid level of the solution to communicate with the gas distribution plate 17, The upper surface of each gas distribution plate 17 is connected with the connecting elbow 15, and the lower surface is uniformly provided with gas distribution plate gas outlets 18, so that the smoke can be evenly discharged in the chemical solution, and the treatment effect of the smoke in the chemical solution can be improved. The partition 23 is a Pall ring, which makes the spray liquid form a vortex and rotate at a high speed under the action of the Pall ring, and washes the smoke at a high speed, further improving the spray effect; the activated carbon adsorption plate 31 is a trumpet-shaped structure with the mouth facing downward. The effec...

Embodiment 3

[0054] The smoke treatment device in the extrusion molding process after separation of paper and plastic in this embodiment has the same basic structure as that of embodiment 2, the difference is that a cooling water circulation device is installed on the inner wall of the first compartment 11 to ensure that the smoke entering the compartment Rapidly lowered to below 30°C. The liquid level of the chemical solution in the chemical solution treatment tank 1 is 70% of the height of the tank; the concentration of the sodium hydroxide solution in the spray tower 2 is 7%. The second compartment 12 hygienic ball add-ons are 70 grams / kg, and the 3rd compartment 13 grapevine acid solution add-ons are 70 grams / kg. The whole device is controlled by PLC and computer, and the chemical solution concentration sampling point is set in the chemical solution treatment box 1 and the spray tower 2, and the gas composition sampling point is set at the air inlet of the exhaust chimney and connected...

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Abstract

The invention discloses a smoke treatment device and treatment method in a post-paper-plastic-separation extrusion molding process, belonging to the technical field of waste gas treatment. The smoke treatment device comprises a chemical solution treatment tank, a spray tower and an adsorption tank, wherein the chemical solution treatment tank is a closed vacuum case which is divided into a plurality of vertical compartments, one end is communicated with a smoke discharge pipe of a post-paper-plastic-separation extrusion molding device through a gas inlet, and the other end is communicated with the spray tower through a connecting pipe; every two adjacent vertical compartments are communicated through a connecting elbow; each compartment is filled with a chemical solution; the top of the spray tower is provided with a spray port; the upper part of the adsorption tank is provided with a gas outlet which is communicated with atmosphere through an exhaust pipe; and an activated carbon adsorption plate is arranged inside the adsorption tank. The treatment method comprises the following steps: smoke cooling, deodorization, alkalization reaction, spraying, adsorption and the like, thereby implementing sufficient and effective treatment on the smoke. The device and method achieve the goal of sufficiently treating smoke in the extrusion molding process after waste carton paper-plastic separation.

Description

technical field [0001] The invention belongs to the technical field of waste gas treatment, in particular to a smoke treatment device and treatment method in the extrusion molding process after separation of paper and plastic. Background technique [0002] The recycling and reuse of waste cartons is an important way to regenerate resources. Most of the current packaging is made of paper-plastic composite materials. This material is economical and practical, and can prevent mildew, moisture and water seepage, so it is widely used in food Package. However, due to the different properties of paper and plastic, this material cannot be directly processed and recycled: the first reason is that paper bags can be degraded, but plastics cannot be degraded; the second reason is that plastics can be regenerated and granulated, but paper bags cannot be regenerated and granulated. If left untreated, both will cause environmental pollution and waste resources. To recycle, the paper and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/78
CPCA61L9/145B01D49/00B01D53/40B01D53/68B01D53/72B01D53/78B01D2251/304B01D2253/102Y02P70/10
Inventor 周江华
Owner 马鞍山华盛环保科技有限公司