CN210699512U - Waste gas treatment system of powder coating extruder - Google Patents

Waste gas treatment system of powder coating extruder Download PDF

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Publication number
CN210699512U
CN210699512U CN201921581030.0U CN201921581030U CN210699512U CN 210699512 U CN210699512 U CN 210699512U CN 201921581030 U CN201921581030 U CN 201921581030U CN 210699512 U CN210699512 U CN 210699512U
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China
Prior art keywords
gas collecting
waste gas
gas
water receiving
collecting channel
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CN201921581030.0U
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Chinese (zh)
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缪宇凯
黄飞
孙建开
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Jiangyin Shengte Environmental Protection Technology Co Ltd
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Jiangyin Shengte Environmental Protection Technology Co Ltd
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Abstract

The utility model relates to a powder coating extruder's exhaust-gas treatment system, including the gas collecting channel, the waste gas pipeline who links to each other with the upper end of gas collecting channel, the exhaust-gas treatment district that links to each other with the air exhauster that the other end of waste gas pipeline links to each other and the outlet conduit of air exhauster, the gas collecting channel includes the gas collecting channel main part, the whole funnel formula design that is of gas collecting channel main part, be equipped with the flange in the upper end of gas collecting channel main part, be equipped with the flange mounting hole on the flange, the through-hole that the extruder protection casing was passed to the upper end of gas collecting channel is connected and is fixed with the bolt through the flange with waste gas pipeline, lower extreme in the gas collecting channel main part is equipped with water receiving mechanism, the exhaust-gas treatment district passes through the direction according. The utility model provides an extruder discharge gate waste gas collect discharge and waste gas meet gas collecting channel inner wall liquefaction become the comdenstion water and drip and cause the problem of pollution to realized that the gas collecting channel makes things convenient for the dismouting in order to clear up the purpose of maintaining.

Description

Waste gas treatment system of powder coating extruder
Technical Field
The utility model relates to a coating production facility technical field, in particular to waste gas treatment system of powder coating extruder.
Background
The production of powder coating is mainly using epoxy resin as raw material, mixing it with pigment, filler, solidifying agent, levelling agent and flatting agent, and adopting extruder to make melt-mixing treatment, then making the above-mentioned materials undergo the processes of tabletting, breaking, grinding and sieving so as to obtain the invented product. In the extrusion production process, when materials are extruded from a discharge port of an extruder, waste gas (mainly volatile organic compounds) generated due to high temperature is discharged along with the materials, and the waste gas is directly discharged without being treated, so that air pollution is caused, and the human health is harmed.
In order to solve the problems, the powder coating extrusion crushing device disclosed in the Chinese patent publication No. CN 208323890U is characterized in that a gas collecting hood is arranged above a discharge port at the front end of a cylinder of an extruder, and waste gas is collected and then conveyed to a waste gas treatment box provided with multiple layers of activated carbon screen sheets through a gas conveying pipe to be treated and then discharged. Although the problem of collecting and discharging waste gas at a discharge port of an extruder is solved to a certain extent, the adsorption of the activated carbon is generally used under the conditions that the concentration of volatile organic compounds is less than 5000PPM, the temperature is not high, the humidity is not high, and the activated carbon is not suitable for partial substances containing activity, such as ketone, aldehyde, ester and the like, which can react with the activated carbon or on the surface of the activated carbon to block carbon holes, so that the activated carbon is inactivated, the maintenance cost of a waste gas treatment box is increased, and volatile organic gas containing the activated substances cannot be removed; in addition, not negligible, because the waste gas discharged from the discharge port of the extruder has very high temperature, when the waste gas is collected by the gas-collecting hood, the volatile organic gas meeting the inner wall of the gas-collecting hood can be liquefied into condensed water which can drop to the extruder or the ground, and the pollution can be caused; in addition, the integrated design of the gas collecting hood and the gas conveying pipe is inconvenient to clean and maintain.
In view of the above, there is a need for further improved waste gas treatment systems for powder coating extruders to address the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a powder coating extruder's exhaust-gas treatment system to solve extruder discharge gate waste gas and collect the emission problem, and waste gas meets the gas collecting channel inner wall liquefaction and becomes the comdenstion water drippage to extruder or on the ground and cause the problem of pollution, and realized that the gas collecting channel makes things convenient for the dismouting in order to clear up the purpose of maintaining.
In order to achieve the purpose of the utility model, the technical proposal of the utility model is that:
the waste gas treatment system of the powder coating extruder comprises a gas collecting hood, a waste gas conveying pipeline connected with the upper end of the gas collecting hood, an exhaust fan connected with the other end of the waste gas conveying pipeline and a waste gas treatment area connected with an outlet pipeline of the exhaust fan;
the gas collecting hood comprises a gas collecting hood main body, the whole gas collecting hood main body is designed in a funnel shape, a flange is arranged at the upper end of the gas collecting hood main body, a flange mounting hole is formed in the flange, the upper end of the gas collecting hood penetrates through a through hole of an extruder protective cover to be connected with a waste gas conveying pipeline through the flange and fixed through a bolt, and a water receiving mechanism is arranged at the lower end of the gas collecting hood main body;
the waste gas treatment district is equipped with one-level ozone purification district, second grade ozone purification district and active carbon adsorption district according to waste gas direction of passing through in proper order.
Further, the outer diameter of the flange is not larger than the diameter of the through hole of the extruder protective cover.
Furthermore, a plurality of convex edges are arranged on the inner wall of the conical section of the gas collecting hood main body at intervals, and a drainage groove is formed between every two adjacent convex edges.
Furthermore, the lower extreme of gas collecting channel main part is the design of cylinder ring shape, is equipped with the mounting groove between the lateral wall of cylinder ring and inside wall, two inner walls of mounting groove are equipped with first internal thread and second internal thread respectively.
Furthermore, the water receiving mechanism is in a cylindrical ring design, and a water receiving groove is formed between the outer side wall and the inner side wall of the water receiving mechanism.
Furthermore, the inner side wall of the water receiving tank is provided with a third internal thread matched with the first internal thread, and the outer side wall of the water receiving tank is provided with an external thread matched with the second internal thread.
Furthermore, the thickness and the height of the outer side wall of the water receiving tank are consistent with the width and the depth of the mounting groove, and the width of the water receiving tank is 1.1-1.5 times of the maximum distance from the inner wall of the mounting groove to the outer wall of the mounting groove.
And a group of handles is symmetrically arranged on the outer side wall of the water receiving mechanism.
Further, the exhaust gas conveying pipeline is arranged along the outer beam.
Compared with the prior art, the utility model, have following advantage:
(1) the design of the drainage groove and the water receiving mechanism of the gas collecting hood of the utility model effectively prevents the waste gas from liquefying into condensed water when meeting the inner wall of the gas collecting hood and dripping the condensed water on the extruder and the ground to cause pollution;
(2) the detachable design of the gas collecting hood and the waste gas conveying pipeline of the utility model facilitates the installation or the unpicking and washing of the gas collecting hood;
(3) the detachable design of the water receiving mechanism of the utility model facilitates the installation or the disassembly of the water receiving mechanism, thereby facilitating the treatment of the condensed water in the water receiving mechanism;
(4) the combined design of ozone-active carbon in the waste gas treatment area of the utility model can effectively purify waste gas to reach the emission standard;
(5) the utility model has the advantages of simple structure and reasonable design, can extensively popularize and apply.
Drawings
Fig. 1 is a schematic view of the overall structure of an embodiment of the present invention;
fig. 2 is a schematic structural view of a gas collecting channel in an embodiment of the present invention;
fig. 3 is a schematic structural view of a main body of a gas collecting channel in an embodiment of the present invention;
fig. 4 is a partial enlarged view of the main body of the gas collecting channel in the embodiment of the present invention;
FIG. 5 is a schematic view of a water receiving mechanism according to an embodiment of the present invention;
reference numerals: the waste gas treatment device comprises a gas collecting hood 1, a waste gas conveying pipeline 2, an exhaust fan 3, a waste gas treatment area 4, an extruder protective cover 5, a gas collecting hood main body 11, a flange 12, a water receiving mechanism 13, a convex rib 111, a mounting groove 112, a first internal thread 113, a second internal thread 114, a handle 131, a water receiving groove 132, an external thread 133 and a third internal thread 134.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
In the extrusion production of powder coating, in order to prevent the dust pollution material in the air, often set up extruder protection casing 5 in the top of extruder and live in order to cover the extrusion section, meanwhile, in order to prevent the exhaust waste gas polluted air of extruder discharge gate, and meet the inner wall liquefaction that extruder protection casing 5 becomes the comdenstion water and drips, polluted environment and extrusion material, be equipped with the gas collecting channel on extruder protection casing 5, and carry the waste gas that the gas collecting channel was collected to the active carbon treatment case through the gas-supply pipe and handle.
However, the general gas-collecting hood still has condensed water dripping, only the dripping range is reduced, and the problem of the condensed water dripping is not solved more thoroughly; furthermore, as mentioned in the background, the activated carbon treatment has limitations on the concentration, temperature, humidity and activity of volatile organic compounds, and the treatment of waste gas discharged from the outlet of the extruder with activated carbon alone is not sufficient for thorough treatment. Therefore, the utility model discloses improve on this basis, specifically as follows:
as shown in fig. 1, for the waste gas treatment system of the powder coating extruder of the present invention, the waste gas treatment system comprises a gas collecting hood 1, a waste gas conveying pipeline 2 connected with the upper end of the gas collecting hood 1, an exhaust fan 3 connected with the other end of the waste gas conveying pipeline 2, and a waste gas treatment area 4 connected with the outlet pipeline of the exhaust fan 3.
As shown in fig. 2 to 5, the gas collecting channel 1 includes a gas collecting channel main body 11, and the gas collecting channel main body 11 is integrally designed in a funnel shape; in order to facilitate the disassembly or assembly of the gas collecting hood 1 and to clean and maintain the gas collecting hood 1 in time, a flange 12 is arranged at the upper end of a gas collecting hood main body 11, a flange mounting hole is arranged on the flange 12, and the upper end of the gas collecting hood 1 penetrates through a through hole of an extruder protective cover 5 to be connected with a waste gas conveying pipeline 2 through the flange 12 and is fixed by bolts; in order to prevent high-temperature waste gas from being liquefied into condensed water when encountering the inner walls of the gas collecting hood main body 11 and the waste gas conveying pipeline 2 and dropping to an extruder and the ground to cause pollution, a plurality of convex edges 111 are arranged at intervals on the inner wall of the conical section of the gas collecting hood main body 11, a drainage groove is formed between every two adjacent convex edges 111 so that the condensed water slides down along with the drainage groove, and then a water receiving mechanism 13 is arranged at the lower end of the gas collecting hood main body 11 so as to receive the sliding condensed water.
Further, the outer diameter of the flange 12 is not larger than the diameter of the through hole of the extruder hood 5.
Further, in order to facilitate the installation or the detachment of the water receiving mechanism 13 so as to process the condensed water received by the water receiving mechanism 13, the lower end of the gas collecting hood body 11 is designed in a cylindrical ring shape, an installation groove 112 is arranged between the outer side wall and the inner side wall of the cylindrical ring, and two inner walls of the installation groove 112 are respectively provided with a first internal thread 113 and a second internal thread 114; meanwhile, the water receiving mechanism 13 is also designed in a cylindrical ring shape, a water receiving tank 132 is further arranged between the outer side wall and the inner side wall of the water receiving mechanism 13, the thickness and the height of the outer side wall of the water receiving tank 132 are consistent with the width and the depth of the mounting groove 112, the width of the water receiving tank 132 is 1.1-1.5 times of the maximum distance from the inner wall of the mounting groove to the outer wall of the mounting groove, the outer side wall of the water receiving tank 132 is provided with an external thread 133 matched with a second internal thread 114, the inner side wall of the water receiving tank 132 is provided with a third internal thread 134 matched with a first internal thread 113, during installation, the outer side wall of the water receiving tank 132 is inserted into the mounting groove 112 and screwed tightly, so that the water receiving mechanism 13 can be connected and fixed with the gas collecting hood main body 11.
Furthermore, in order to facilitate the installation or removal operation of the water receiving mechanism 13, a set of handles 131 is symmetrically disposed on the outer side wall of the water receiving mechanism 13.
The exhaust gas supply lines 2 are arranged along the outer beam in order to save space.
The waste gas treatment area 4 is provided with a first-stage ozone purification area, a second-stage ozone purification area and an active carbon adsorption area in sequence according to the waste gas passing direction. When the waste gas passes through the primary ozone purification area, most volatile organic compounds are thoroughly oxidized by ozone to harmless organic acids for human bodies, and are not oxidized and oxidized to intermediate states, and are thoroughly oxidized when passing through the secondary ozone purification area, redundant ozone contained in the gas reaching the emission standard after oxidation is adsorbed when passing through the activated carbon adsorption area, and the gas reaching the emission standard can be directly discharged into the air.
While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the embodiments disclosed, but is capable of numerous equivalents and substitutions without departing from the spirit of the invention, the equivalents and substitutions being limited only by the scope of the appended claims.

Claims (7)

1. The waste gas treatment system of the powder coating extruder is characterized by comprising a gas collecting hood, a waste gas conveying pipeline connected with the upper end of the gas collecting hood, an exhaust fan connected with the other end of the waste gas conveying pipeline and a waste gas treatment area connected with an outlet pipeline of the exhaust fan;
the gas collecting hood comprises a gas collecting hood main body, the whole gas collecting hood main body is in a funnel type design, a flange is arranged at the upper end of the gas collecting hood main body, a flange mounting hole is formed in the flange, the upper end of the gas collecting hood penetrates through a through hole of an extruder protective cover to be connected with a waste gas conveying pipeline through the flange and fixed through bolts, the lower end of the gas collecting hood main body is in a cylindrical ring shape design, a mounting groove is formed between the outer side wall and the inner side wall of the cylindrical ring, a water receiving mechanism is arranged in the mounting groove and is in the cylindrical ring shape design, a water receiving groove is formed between the outer side wall and the inner side wall of the water receiving mechanism, a plurality of convex edges are arranged on the inner wall of a conical section of the gas;
the waste gas treatment district is equipped with one-level ozone purification district, second grade ozone purification district and active carbon adsorption district according to waste gas direction of passing through in proper order.
2. The exhaust gas treatment system for a powder coating extruder of claim 1, wherein the flange has an outer diameter no greater than the diameter of the through hole of the extruder shroud.
3. The exhaust gas treatment system of a powder coating extruder according to claim 1, wherein both inner walls of the mounting groove are provided with a first internal thread and a second internal thread, respectively.
4. The exhaust gas treatment system of a powder coating extruder according to claim 1, wherein the inner side wall of the water receiving tank is provided with a third internal thread matching the first internal thread, and the outer side wall of the water receiving tank is provided with an external thread matching the second internal thread.
5. The exhaust gas treatment system of a powder coating extruder according to claim 1, wherein the thickness and height of the outer side wall of the water receiving tank correspond to the width and depth of the mounting groove, and the width of the water receiving tank is 1.1 to 1.5 times the maximum distance from the inner wall of the mounting groove to the outer wall of the mounting groove.
6. The exhaust gas treatment system of powder coating extruder according to claim 1, wherein a set of handles is symmetrically arranged on the outer side wall of the water receiving mechanism.
7. The exhaust gas treatment system for a powder coating material extruder according to claim 1, wherein the exhaust gas delivery pipe is provided along an outer beam.
CN201921581030.0U 2019-09-20 2019-09-20 Waste gas treatment system of powder coating extruder Active CN210699512U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921581030.0U CN210699512U (en) 2019-09-20 2019-09-20 Waste gas treatment system of powder coating extruder

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921581030.0U CN210699512U (en) 2019-09-20 2019-09-20 Waste gas treatment system of powder coating extruder

Publications (1)

Publication Number Publication Date
CN210699512U true CN210699512U (en) 2020-06-09

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Application Number Title Priority Date Filing Date
CN201921581030.0U Active CN210699512U (en) 2019-09-20 2019-09-20 Waste gas treatment system of powder coating extruder

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115122202A (en) * 2021-03-24 2022-09-30 中国石油天然气股份有限公司 Hand-held grinder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115122202A (en) * 2021-03-24 2022-09-30 中国石油天然气股份有限公司 Hand-held grinder

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