CN111992467A - Color steel plate color coating circulating drying curing equipment and method - Google Patents

Color steel plate color coating circulating drying curing equipment and method Download PDF

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Publication number
CN111992467A
CN111992467A CN202010843142.XA CN202010843142A CN111992467A CN 111992467 A CN111992467 A CN 111992467A CN 202010843142 A CN202010843142 A CN 202010843142A CN 111992467 A CN111992467 A CN 111992467A
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catalytic
combustion furnace
steel plate
drying
curing
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Chinese (zh)
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蒋伟
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Suzhou Linhao Board Technology Co ltd
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Suzhou Linhao Board Technology Co ltd
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/04Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to gases
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B05SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05DPROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D3/00Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
    • B05D3/06Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation
    • B05D3/061Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by exposure to radiation using U.V.
    • B05D3/065After-treatment
    • B05D3/067Curing or cross-linking the coating

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  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Drying Of Solid Materials (AREA)

Abstract

The invention discloses color-coated circulating drying and curing equipment and method for a color steel plate, wherein the color-coated circulating drying and curing equipment for the color steel plate comprises an oven, a main combustion furnace, a catalytic tube, a waste gas combustion furnace and a catalytic box, wherein a drying chamber is arranged in the oven, a feed inlet and a discharge outlet which are communicated with the drying chamber are respectively arranged at the two horizontal ends of the oven, and a plurality of air blowing ports and air return ports are arranged on the inner side wall of the top and/or the bottom of the drying chamber; the outlet of the main combustion furnace is communicated with the blowing port of the oven, and the main combustion furnace can introduce high-temperature gas into the drying chamber; the inlet of the catalytic tube is communicated with the air suction opening of the oven; the inlet of the waste gas combustion furnace is communicated with the outlet of the catalytic tube; catalysts are uniformly arranged in the catalytic box, the catalytic box is provided with an air inlet and an air outlet, the air inlet of the catalytic box is communicated with the outlet of the waste gas combustion furnace, and the air outlet of the catalytic box is communicated with the inlet of the main combustion furnace; and two ovens are stacked along the vertical direction, a plurality of catalytic tubes are arranged in the catalytic box in a penetrating way, and the inlet and the outlet of each catalytic tube penetrate out of the catalytic box.

Description

Color steel plate color coating circulating drying curing equipment and method
Technical Field
The invention belongs to the technical field of color steel plate processing, and particularly relates to color steel plate color coating circulating drying curing equipment and method.
Background
The color steel plate drying and curing equipment is used for drying the color steel plate finished by paint spraying, so that the color steel plate finished by painting can be quickly accumulated conveniently, and the phenomenon of paint falling seriously is not easy to occur. Various kinds and quantity of various steel plate drying and curing equipment on the existing market exist, but some problems exist, such as very low drying efficiency of various steel plates, non-lasting coloring after drying, and the like.
In addition, a large amount of Volatile Organic Compounds (VOCs) can be generated in the baking and curing process after the color coating processing of the steel plate, and the VOCs can be volatilized and have active properties, can participate in atmospheric photochemical reaction to generate harmful substances, and cause great harm to the environment and human health. At present, the treatment technology of VOCs mainly comprises an adsorption method, a membrane separation method, a liquid absorption method, a catalytic combustion method, a photocatalytic oxidation treatment technology, a biological treatment technology and the like; the catalytic combustion method is a method for oxidizing and decomposing organic substances in the waste gas at a lower temperature by using a proper catalyst in a system, so that the gas is purified; catalytic combustion processes are suitable for treating organic gases that are combustible or decomposable at high temperatures.
However, in the existing VOCs catalytic combustion equipment, when the concentration fluctuation of VOCs in waste gas is large and the concentration of organic waste gas is too low, the catalytic reaction combustion process can be maintained only by adding auxiliary fuel to supplement a large amount of external heat, and the addition of auxiliary fuel can cause the temperature of a high-temperature region in an incinerator to be too high, so that the generation amount of nitrogen oxides is increased, secondary pollution is generated, and the energy consumption is high.
The above description is included in the technical recognition scope of the inventors, and does not necessarily constitute the prior art.
Disclosure of Invention
In order to solve the problems, the invention aims to provide color-coated circulating drying and curing equipment and method for a color steel plate, which have the advantages of good purifying treatment effect on dried waste gas, high treatment efficiency, secondary utilization of energy contained in the waste gas, energy conservation, environmental protection, use cost saving, high drying efficiency, lasting coloring after drying, economic benefit improvement, strong practicability and suitability for popularization and application.
In order to achieve the above object, in one aspect, the present invention provides a color steel plate color coating, circulating, drying and curing apparatus, which is characterized in that the color steel plate color coating, circulating, drying and curing apparatus includes: the drying oven is internally provided with a drying chamber, the horizontal two ends of the drying oven are respectively provided with a feeding hole and a discharging hole which are communicated with the drying chamber, the inner side wall of the top and/or the bottom of the drying chamber is provided with a plurality of air blowing holes and air return holes, and the color steel plate can penetrate into the drying oven through the feeding hole and penetrate out of the discharging hole; the outlet of the main combustion furnace is communicated with the air blowing port of the oven, and the main combustion furnace can introduce high-temperature gas into the drying chamber to dry the color steel plate; the inlet of the catalytic tube is communicated with the air suction opening of the drying oven so as to suck the waste gas in the drying chamber; an exhaust gas combustion furnace, an inlet of the exhaust gas combustion furnace being communicated with an outlet of the catalytic tube to catalytically combust the sucked exhaust gas; the catalytic box is internally and uniformly provided with catalysts and is provided with an air inlet and an air outlet, the air inlet of the catalytic box is communicated with an outlet of the waste gas combustion furnace so as to catalytically decompose the waste gas, and the air outlet of the catalytic box is communicated with an inlet of the main combustion furnace so as to introduce gas after catalytic treatment into the main combustion furnace; and the two drying ovens are stacked in the vertical direction, the catalytic tubes penetrate through the catalytic box, and the inlets and outlets of the catalytic tubes penetrate out of the catalytic box.
In one example, the color-coated circulating drying and curing device for color-coated color plates further comprises a circulating fan and a return air fan, wherein the circulating fan is arranged between the air blowing port of the oven and the outlet of the main combustion furnace, and the return air fan is arranged between the return air port of the oven and the inlet of the catalytic tube.
In one example, the catalyst is a catalyst for purifying organic waste gas containing palladium and platinum as active components, and is made into a catalytic block with a plurality of airflow channels, and the catalytic block is stacked in multiple layers in the catalytic box.
In one example, the air inlet and the air outlet are respectively arranged at two opposite sides of the catalysis box, the stacking direction of the catalysis blocks in the catalysis box enables the airflow channel to be parallel to the axial direction of the air inlet and the air outlet, and the catalysis pipe penetrates through the catalysis box along the direction perpendicular to the axial direction of the air inlet and the air outlet.
In one example, the color-coated steel plate circulating drying and curing device further comprises a filter, and the filter is arranged between an outlet of the waste gas combustion furnace and the air inlet of the catalytic box.
In one example, the color steel plate color coating circulating drying curing device further comprises a main fan, and the main fan is arranged between the air outlet of the catalytic box and the inlet of the main combustion furnace.
In one example, the color steel plate color coating circulating drying curing equipment further comprises a curing device, the curing device comprises a curing box and an ultraviolet curing assembly, the curing box is adjacently arranged on one side of the drying oven, which is provided with the discharge port, a curing cavity is arranged in the curing box, a color steel plate outlet is arranged on one side of the curing cavity, which is opposite to the discharge port, and the color steel plate can penetrate into the curing box through the discharge port and penetrate out of the color steel plate outlet;
the ultraviolet light curing assembly comprises UV lamp tubes, the UV lamp tubes are arranged in the curing cavity, and the UV lamp tubes irradiate the color steel plate so as to cure the coating on the surface of the color steel plate.
On the other hand, the invention also provides a color steel plate color coating circulating drying curing method, which adopts the color steel plate color coating circulating drying curing equipment of any one of the above examples, and comprises the following steps:
s1: starting color steel plate color coating circulating drying and curing equipment, operating a main combustion furnace, blowing high-temperature gas generated by the main combustion furnace into a drying chamber through a blowing port, preheating the drying chamber, sucking the high-temperature gas in the drying chamber through a return air port, and sequentially passing through and preheating a catalytic tube, a waste gas combustion furnace and a catalytic box;
s2: the color steel plate is penetrated into the drying oven from the feeding hole, high-temperature gas generated by the main combustion furnace is blown into the drying chamber through the blowing hole, the color steel plate is dried and solidified, and then the color steel plate penetrates out of the drying oven from the discharging hole;
s3: waste gas generated by drying the color steel plate in the drying chamber is sucked through the air return port and introduced into the catalytic tube, and the waste gas is preheated and primarily catalyzed when flowing through the part of the catalytic tube positioned in the catalytic box so as to reach the catalytic ignition temperature;
s4: introducing the waste gas after primary catalysis into a waste gas combustion furnace through a catalytic tube for combustion and purification;
s5: introducing high-temperature waste gas after combustion of the waste gas combustion furnace into a catalytic box for catalytic decomposition, and oxidizing the high-temperature waste gas to convert the high-temperature waste gas into high-temperature catalytic gas containing water and carbon dioxide;
s6: introducing the high-temperature catalytic gas into a main combustion furnace for recycling and combustion to form high-temperature gas;
s7: and repeating the steps S2 to S6 to realize the circulating drying and curing of the color coating of the color steel plate.
The color steel plate color coating circulating drying curing equipment and the method provided by the invention can bring the following beneficial effects:
1. the catalytic tube penetrates through the catalytic box, high-temperature waste gas can heat the catalytic tube in the catalytic box, so that the waste gas can be preheated and primarily catalyzed when flowing through the part of the catalytic tube positioned in the catalytic box, external heat is effectively supplemented to maintain the combustion process of catalytic reaction, the combustion purification and catalytic decomposition effects are improved, the catalytic combustion efficiency is high, secondary utilization of energy contained in the waste gas is realized, other heating equipment and additional auxiliary fuel are not needed, the equipment and use cost are saved, energy is saved, consumption is reduced, the environment is protected, secondary pollution is avoided, the purification treatment effect on the dried waste gas is good, and the treatment efficiency is high; the gas after catalytic decomposition is introduced into the main combustion furnace for combustion and purification again, the generated high-temperature gas is introduced into the oven for heating and drying the color steel plate, so that the cyclic treatment and utilization of the dried waste gas are realized, the zero emission of the waste gas is realized, and the utilization rate of the waste gas is high; stack two ovens that set up from top to bottom simultaneously, can dry the solidification to the twice various of various steel sheet of scribbling, realize various steel sheet of scribbling stoving continuous production, reinforcing service function, production efficiency is high, and energy utilization is high, and is energy-concerving and environment-protective, practices thrift the cost, promotes economic benefits, and compact structure saves installation space moreover, and the practicality is strong, is fit for popularizing and applying.
2. By arranging the circulating fan, high-temperature gas generated by the main combustion furnace can be blown into a drying chamber of the drying oven at an accelerated speed, the gas flowing speed is accelerated, the drying efficiency of the color steel plate is improved, the drying speed is high, and the drying effect is better; through setting up the return air fan, can accelerate the waste gas that produces in the drying chamber of suction oven, reduce the various lacquer flavor that produces of circulation stoving curing equipment during operation of scribbling of various steel sheet, reduce waste gas pollution, prevent that the staff from inhaling too much harmful gas, it is healthy to protect the staff, and prevent that waste gas from influencing the follow-up solidification effect of various steel sheet, and accelerate gas flow speed, and then accelerate the speed that waste gas circulation catalytic treatment utilized, further improve the various work efficiency of scribbling circulation stoving curing equipment of various steel sheet, shorten process time, therefore, the clothes hanger is strong in practicability, and is suitable for popularization and application.
3. The catalyst is a key factor in catalytic combustion, and the catalyst for purifying organic waste gas by using the noble metal palladium and platinum as main active components has the characteristics of low temperature and high activity, low ignition temperature and low energy consumption, most products are carbon dioxide and water, and other intermediate products are few, so that secondary pollution is avoided, energy is saved, consumption is reduced, environmental protection is realized, the catalytic efficiency is high, and the purification effect is good; the catalytic decomposition is carried out when the high temperature exhaust flows through the airflow channel, the contact area of high temperature exhaust gas and catalyst is increased, the contact of high temperature exhaust gas and catalyst is fully uniform, the catalytic effect is ensured, the catalytic efficiency is high, a plurality of catalytic blocks are stacked in the catalytic box, the length and the number of the airflow channel are increased, more high temperature exhaust gas can be catalyzed, the catalytic efficiency is high, the practicability is high, and the catalytic reactor is suitable for popularization and application.
4. Through setting up the filter, can filter the particle impurity in the high temperature waste gas that waste gas fired burning furnace produced, prevent that particle impurity in the high temperature waste gas from attaching to the airflow channel who blocks up the catalysis piece, prevent that particle impurity from damaging the catalysis piece, slow down the activity reduction of catalyst, the life of extension catalysis piece reduces use cost, and the practicality is strong, is fit for popularizing and applying.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
fig. 1 is a schematic structural diagram of a color plate color coating circulating drying curing device of the invention.
Detailed Description
In order to more clearly explain the overall concept of the invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.
In the description of the present invention, it is to be understood that the terms "central," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," "circumferential," and the like are used in the indicated orientations and positional relationships based on the drawings for ease of description and simplicity of description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description of the present specification, reference to the description of the terms "one aspect," "some aspects," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the aspect or example is included in at least one aspect or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same solution or example. The particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more of the aspects or examples.
As shown in fig. 1, an embodiment of the present invention provides a color-coated circulating drying and curing apparatus 100 for color-coated color steel plates, which includes an oven 1, a main combustion furnace 2, a catalytic tube 3, a waste gas combustion furnace 4 and a catalytic box 5, wherein a drying chamber is disposed in the oven 1, a feed inlet 11 and a discharge outlet 12 communicated with the drying chamber are respectively disposed at two horizontal ends of the oven 1, a plurality of air blowing ports 13 and air return ports 14 are disposed on the inner side wall at the top and/or bottom of the drying chamber, and color steel plates can penetrate into the oven 1 from the feed inlet 11 and penetrate out from the discharge outlet 12; the outlet of the main combustion furnace 2 is communicated with the air blowing port 13 of the oven 1, and the main combustion furnace 2 can introduce high-temperature gas into the drying chamber to dry the color steel plate; the inlet of the catalytic tube 3 is communicated with the air suction opening of the drying oven 1 so as to suck the waste gas in the drying chamber; the inlet of the exhaust gas combustion furnace 4 is communicated with the outlet of the catalytic tube 3 to catalytically combust the sucked exhaust gas; catalysts 51 are uniformly arranged in the catalytic box 5, the catalytic box 5 is provided with an air inlet 52 and an air outlet 53, the air inlet 52 of the catalytic box 5 is communicated with the outlet of the waste gas combustion furnace 4 so as to catalytically decompose the waste gas, and the air outlet 53 of the catalytic box 5 is communicated with the inlet of the main combustion furnace 2 so as to introduce the gas after catalytic treatment into the main combustion furnace 2; and two ovens 1 stack the setting along vertical direction, and many catalysis pipes 3 wear to locate in catalysis case 5, and catalysis case 5 is all worn out in catalysis pipe 3's entry and export. The waste gas in the oven 1 is introduced into a waste gas combustion furnace 4 through a catalytic tube 3 for combustion and purification, the high-temperature waste gas generated by combustion is introduced into a catalytic box 5 for catalytic decomposition and is converted into high-temperature catalytic gas containing water and carbon dioxide, meanwhile, as the catalytic tube 3 passes through the catalytic box 5, the high-temperature waste gas can heat the catalytic tube 3 in the catalytic box 5, so that the waste gas can be preheated and primarily catalyzed when flowing through the part of the catalytic tube 3 positioned in the catalytic box 5, the external heat is effectively supplemented to maintain the combustion process of catalytic reaction, the combustion purification and catalytic decomposition effects are improved, the catalytic combustion efficiency is high, the secondary utilization of energy contained in the waste gas is realized, other heating equipment and additional auxiliary fuel are not needed, the equipment and use cost are saved, the energy is saved, the consumption is reduced, the environment is protected, the secondary pollution is avoided, the purification treatment effect on the dried waste gas is good, and the treatment efficiency is high; the gas after catalytic decomposition is introduced into the main combustion furnace 2 for combustion and purification again, the generated high-temperature gas is introduced into the oven 1 for heating and drying the color steel plate, the cyclic treatment and utilization of the dried waste gas are realized, the zero emission of the waste gas is realized, and the utilization rate of the waste gas is high; stack two oven 1 that set up from top to bottom simultaneously, can dry the solidification to the twice various of various steel sheet of scribbling, realize the various drying continuous production of scribbling of various steel sheet, reinforcing service function, production efficiency is high, and energy utilization is high, and is energy-concerving and environment-protective, practices thrift the cost, promotes economic benefits, and compact structure saves installation space moreover, and the practicality is strong, is fit for popularizing and applying.
In a specific embodiment, the feeding ports 11 of the two ovens 1 face the same side, a plurality of transmission rollers are arranged between the two ovens 1 stacked up and down at intervals along the length direction of the ovens 1, and the transmission rollers are used for transmitting color steel plates so as to transmit the color steel plates penetrating out from the discharging port 12 of one oven 1 to the feeding port 11 of the other oven 1, thereby realizing continuous color coating and drying of the color steel plates. A plurality of mouths of blowing 13 are located the top and the bottom of drying chamber respectively, can blow simultaneously and dry to the two sides of various steel sheet, realize heating the stoving to various steel sheet surface full aspect, and drying efficiency is high, and the coating on various steel sheet surface is dried evenly, guarantees the stoving effect, guarantees the processingquality of various steel sheet, and the practicality is strong, is fit for popularizing and applying.
Specifically, the color steel plate color coating circulating drying curing device 100 further comprises a circulating fan and a return air fan, the circulating fan is arranged between the blowing port 13 of the oven 1 and the outlet of the main combustion furnace 2, and the return air fan is arranged between the return air port 14 of the oven 1 and the inlet of the catalytic tube 3. By arranging the circulating fan, high-temperature gas generated by the main combustion furnace 2 can be blown into the drying chamber of the oven 1 at an accelerated speed, the gas flowing speed is accelerated, the drying efficiency of the color steel plate is improved, the drying speed is high, and the drying effect is better; through setting up the return air fan, can accelerate the waste gas that produces in the drying chamber of suction oven 1, reduce the various colored lacquer flavor that produces of circulation stoving curing equipment 100 during operation of scribbling of various steel sheet, reduce waste gas pollution, prevent that the staff from inhaling too much harmful gas, it is healthy to protect the staff, and prevent that waste gas from influencing the follow-up solidification effect of various steel sheet, and accelerate gas flow speed, and then accelerate the speed that waste gas circulation catalytic treatment utilized, further improve the various work efficiency of scribbling circulation stoving curing equipment 100 of various steel sheet, shorten process time, therefore, the clothes hanger is strong in practicability, and is suitable for popularization and application.
Specifically, the catalyst 51 is a catalyst for purifying organic exhaust gas containing palladium and platinum as active components, and is made into a catalyst block having a plurality of gas flow channels, and the catalyst block is stacked in a plurality of layers in the catalyst case 5. The catalyst is a key factor in catalytic combustion, and the catalyst for purifying organic waste gas by using the noble metal palladium and platinum as main active components has the characteristics of low temperature and high activity, low ignition temperature and low energy consumption, most products are carbon dioxide and water, and other intermediate products are few, so that secondary pollution is avoided, energy is saved, consumption is reduced, environmental protection is realized, the catalytic efficiency is high, and the purification effect is good; carry out catalytic decomposition when the high temperature exhaust gas flows through the airflow channel, increase the area of contact of high temperature exhaust gas and catalyst, high temperature exhaust gas and catalyst contact are abundant even, guarantee catalytic effect, and catalytic efficiency is high, and a plurality of catalysis piece yards are put in catalysis case 5, increase airflow channel's length and quantity, can catalyze more high temperature exhaust gas, and catalytic efficiency is high, and the practicality is strong, is fit for popularizing and applying.
Specifically, the air inlet 52 and the air outlet 53 are respectively arranged at two opposite sides of the catalytic box 5, the stacking direction of the catalytic blocks in the catalytic box 5 enables the airflow channel to be parallel to the axial direction of the air inlet 52 and the air outlet 53, the high-temperature exhaust flows through the airflow channel smoothly and stably, the airflow resistance is reduced, the exhaust gas is more uniformly and fully contacted with the catalyst, the catalytic effect is better, the catalytic efficiency is higher, the energy loss is reduced, the energy is saved, and the consumption is reduced; catalysis case 5 is worn to locate along perpendicular to air inlet 52 and the axial direction of gas outlet 53 by catalysis pipe 3, can effectively heat catalysis pipe 3 when high temperature waste gas flows through catalysis case 5, and heating efficiency is higher, and it is better to preheat the effect, effectively guarantees follow-up catalytic combustion effect, compact structure, catalysis case 5's high-usage, and energy-concerving and environment-protective, the practicality is strong, is fit for popularizing and applying.
Specifically, the color steel plate color coating circulating drying curing device 100 further comprises a filter 6, and the filter 6 is arranged between the outlet of the waste gas combustion furnace 4 and the air inlet 52 of the catalytic box 5. Through setting up filter 6, can filter the particle impurity in the high temperature waste gas that waste gas fired furnace 4 produced, prevent that particle impurity in the high temperature waste gas from attaching to the airflow channel who blocks up the catalysis piece, prevent that particle impurity from damaging the catalysis piece, slow down the activity reduction of catalyst, the life of extension catalysis piece reduces use cost, and the practicality is strong, is fit for popularizing and applying.
Specifically, the color steel plate color coating circulating drying curing device 100 further comprises a main blower 7, and the main blower 7 is arranged between the air outlet 53 of the catalytic box 5 and the inlet of the main combustion furnace 2. Can let in the high temperature catalytic gas suction after catalytic treatment in the catalytic box 5 through main fan 7 and carry out catalytic combustion in main burning furnace 2, accelerate the gaseous flow velocity in various steel sheet colored coating circulation stoving curing equipment 100, thereby accelerate the circulation catalytic treatment speed of waste gas, shorten process time, promote catalytic treatment efficiency, promote the work efficiency of various steel sheet colored coating circulation stoving curing equipment 100, be favorable to improving the stoving curing efficiency of various steel sheet, it is fast to dry, promote economic benefits, therefore, the clothes hanger is strong in practicability, and is suitable for popularization and application
Specifically, the color steel plate color coating circulating drying curing equipment 100 further comprises a curing device 8, the curing device 8 comprises a curing box 81 and an ultraviolet curing assembly 82, the curing box 81 is adjacently arranged on one side of the oven 1, which is provided with the discharge port 12, a curing cavity is arranged in the curing box 81, a color steel plate outlet is arranged on one side of the curing cavity, which is opposite to the discharge port 12, and the color steel plate can penetrate into the curing box 81 through the discharge port 12 and penetrate out through the color steel plate outlet; the UV curing assembly 82 includes UV (Ultraviolet) lamp tubes, a plurality of UV lamp tubes are disposed in the curing chamber, and the UV lamp tubes irradiate the color steel plate to cure the coating on the surface of the color steel plate. Various steel sheet is by in discharge gate 12 entering curing box 81 of oven 1, the UV fluorescent tube shines various steel sheet surface, make the coating on various steel sheet surface further dry, drying time is shorter, simultaneously through ultraviolet ray photocuring, the coating color and luster on various steel sheet surface is stable, effectively solve various steel sheet and color the problem of not lasting of coloring, drying efficiency is high, various steel sheet process time is short, and carry out curing through using the UV fluorescent tube, the electric energy is saved, the UV fluorescent tube is the cold light source, no heat radiation, need not preheating time, it can reach the ultraviolet ray and to the curing requirement of various steel sheet surface coating to light on, high durability and convenient use, therefore, the clothes hanger is strong in practicability, and is suitable for popularization and application.
In one embodiment, the UV light tube is a UVLED lamp. A plurality of UV fluorescent tubes are located the top and the bottom in solidification chamber respectively, can shine the solidification to various steel sheet two sides simultaneously, and the solidification is efficient, and the coating solidification on various steel sheet surface is even, guarantees the solidification effect, guarantees the processingquality of various steel sheet.
Another embodiment of the present invention further provides a color steel plate color coating circulating drying curing method, which adopts the color steel plate color coating circulating drying curing apparatus 100 provided in any of the above embodiments, and includes the following steps:
s1: the color steel plate color coating circulating drying and curing device 100 is started, the main combustion furnace 2 operates, high-temperature gas generated by the main combustion furnace 2 is blown into the drying chamber through the blowing port 13, the drying chamber is preheated, the high-temperature gas in the drying chamber is sucked through the air return port 14, and the high-temperature gas sequentially passes through and preheats the catalytic tube 3, the waste gas combustion furnace 4 and the catalytic box 5.
Preheat through scribbling various steel sheet coloured silk circulation stoving curing equipment 100 to reach the required temperature of catalysis, guarantee the catalytic effect when catalyzing follow-up with waste gas, make waste gas reach emission standard and can carry out reutilization, and guarantee various steel sheet stoving effect.
S2: penetrate oven 1 with various steel sheet by feed inlet 11, the high-temperature gas that main combustion furnace 2 produced blows in the drying chamber in through blowing mouth 13, dries the solidification to various steel sheet, then various steel sheet wears out oven 1 by discharge gate 12.
S3: waste gas generated by drying the color steel plate in the drying chamber is sucked through the air return opening 14 and is introduced into the catalytic tube 3, and the waste gas is preheated and primarily catalyzed when flowing through the part of the catalytic tube 3 positioned in the catalytic box 5, so as to reach the catalytic ignition temperature.
The high-temperature waste gas in the catalytic box 5 heats the catalytic pipeline 3, other heating equipment is not needed, the equipment cost is saved, and the device is energy-saving and environment-friendly.
S4: and introducing the waste gas after primary catalysis into a waste gas combustion furnace 4 through a catalytic tube 3 for combustion and purification.
S5: and introducing the high-temperature waste gas after combustion in the waste gas combustion furnace 4 into the catalytic box 5 for catalytic decomposition, and oxidizing the high-temperature waste gas to convert the high-temperature waste gas into high-temperature catalytic gas containing water and carbon dioxide.
S6: introducing the high-temperature catalytic gas into the main combustion furnace 2 for recycling and combustion to form high-temperature gas.
S7: and repeating the steps S2 to S6 to realize the circulating drying and curing of the color coating of the color steel plate.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only an example of the present invention, and is not intended to limit the present invention. Various modifications and alterations to this invention will become apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the scope of the claims of the present invention.

Claims (8)

1. The utility model provides a various steel sheet is various coats circulation stoving curing equipment which characterized in that, various steel sheet is various coats circulation stoving curing equipment and includes:
the drying oven is internally provided with a drying chamber, the horizontal two ends of the drying oven are respectively provided with a feeding hole and a discharging hole which are communicated with the drying chamber, the inner side wall of the top and/or the bottom of the drying chamber is provided with a plurality of air blowing holes and air return holes, and the color steel plate can penetrate into the drying oven through the feeding hole and penetrate out of the discharging hole;
the outlet of the main combustion furnace is communicated with the air blowing port of the oven, and the main combustion furnace can introduce high-temperature gas into the drying chamber to dry the color steel plate;
the inlet of the catalytic tube is communicated with the air suction opening of the drying oven so as to suck the waste gas in the drying chamber;
an exhaust gas combustion furnace, an inlet of the exhaust gas combustion furnace being communicated with an outlet of the catalytic tube to catalytically combust the sucked exhaust gas; and
the catalytic box is internally and uniformly provided with catalysts and is provided with an air inlet and an air outlet, the air inlet of the catalytic box is communicated with an outlet of the waste gas combustion furnace so as to catalytically decompose the waste gas, and the air outlet of the catalytic box is communicated with an inlet of the main combustion furnace so as to introduce gas after catalytic treatment into the main combustion furnace;
and the two drying ovens are stacked in the vertical direction, the catalytic tubes penetrate through the catalytic box, and the inlets and outlets of the catalytic tubes penetrate out of the catalytic box.
2. The apparatus as claimed in claim 1, further comprising a circulating fan and a return air fan, wherein the circulating fan is disposed between the air outlet of the oven and the outlet of the main combustion furnace, and the return air fan is disposed between the return air inlet of the oven and the inlet of the catalytic tube.
3. The color-coated circulating drying curing equipment for the color-coated steel plate as claimed in claim 1, wherein the catalyst is a catalyst for purifying organic waste gas containing palladium and platinum as active components, and is made into a catalytic block with a plurality of air flow channels, and a plurality of layers of the catalytic block are stacked in the catalytic box.
4. The color-coated circulating drying curing equipment for color steel plates according to claim 3, wherein the air inlet and the air outlet are respectively arranged at two opposite sides of the catalytic box, the stacking direction of the catalytic block in the catalytic box enables the airflow channel to be parallel to the axial direction of the air inlet and the air outlet, and the catalytic tube penetrates through the catalytic box along the direction perpendicular to the axial direction of the air inlet and the air outlet.
5. The apparatus as claimed in claim 1, further comprising a filter disposed between the outlet of the exhaust gas burner and the inlet of the catalytic box.
6. The color-coated steel plate circulating drying and curing device as claimed in any one of claims 1 to 5, further comprising a main blower disposed between the air outlet of the catalytic box and the inlet of the main combustion furnace.
7. The color-coated circulating drying curing equipment for the color steel plates as claimed in any one of claims 1 to 5, further comprising a curing device, wherein the curing device comprises a curing box and an ultraviolet curing assembly, the curing box is adjacently arranged on one side of the drying oven, which is provided with the discharge port, a curing cavity is arranged in the curing box, a color steel plate outlet is arranged on one side of the curing cavity, which is opposite to the discharge port, and the color steel plates can penetrate into the curing box through the discharge port and penetrate out through the color steel plate outlet;
the ultraviolet light curing assembly comprises UV lamp tubes, the UV lamp tubes are arranged in the curing cavity, and the UV lamp tubes irradiate the color steel plate so as to cure the coating on the surface of the color steel plate.
8. A color steel plate color coating circulating drying curing method, which adopts the color steel plate color coating circulating drying curing equipment as claimed in any one of claims 1 to 7, and comprises the following steps:
s1: starting color steel plate color coating circulating drying and curing equipment, operating a main combustion furnace, blowing high-temperature gas generated by the main combustion furnace into a drying chamber through a blowing port, preheating the drying chamber, sucking the high-temperature gas in the drying chamber through a return air port, and sequentially passing through and preheating a catalytic tube, a waste gas combustion furnace and a catalytic box;
s2: the color steel plate is penetrated into the drying oven from the feeding hole, high-temperature gas generated by the main combustion furnace is blown into the drying chamber through the blowing hole, the color steel plate is dried and solidified, and then the color steel plate penetrates out of the drying oven from the discharging hole;
s3: waste gas generated by drying the color steel plate in the drying chamber is sucked through the air return port and introduced into the catalytic tube, and the waste gas is preheated and primarily catalyzed when flowing through the part of the catalytic tube positioned in the catalytic box so as to reach the catalytic ignition temperature;
s4: introducing the waste gas after primary catalysis into a waste gas combustion furnace through a catalytic tube for combustion and purification;
s5: introducing high-temperature waste gas after combustion of the waste gas combustion furnace into a catalytic box for catalytic decomposition, and oxidizing the high-temperature waste gas to convert the high-temperature waste gas into high-temperature catalytic gas containing water and carbon dioxide;
s6: introducing the high-temperature catalytic gas into a main combustion furnace for recycling and combustion to form high-temperature gas;
s7: and repeating the steps S2 to S6 to realize the circulating drying and curing of the color coating of the color steel plate.
CN202010843142.XA 2020-08-20 2020-08-20 Color steel plate color coating circulating drying curing equipment and method Withdrawn CN111992467A (en)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103575085A (en) * 2012-07-31 2014-02-12 苏州福斯特光伏材料有限公司 Combustion disposing, drying and heating integrated unit for organic waste gas emitted by coater
CN105944930A (en) * 2016-05-28 2016-09-21 嘉兴佳源多彩铝业有限公司 Coating waste gas circulating system and aluminum plate coating production process applying system
CN106000823A (en) * 2016-06-08 2016-10-12 宜兴市富胜机械有限公司 Metal plate UV roller coating drying system
CN108499822A (en) * 2018-04-10 2018-09-07 江苏鼎胜新能源材料股份有限公司 A kind of hot air circulation curing oven applies machine and working method
CN210718577U (en) * 2019-08-15 2020-06-09 昆山钛研环保科技有限公司 Drying production line and waste gas treatment heat recovery system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103575085A (en) * 2012-07-31 2014-02-12 苏州福斯特光伏材料有限公司 Combustion disposing, drying and heating integrated unit for organic waste gas emitted by coater
CN105944930A (en) * 2016-05-28 2016-09-21 嘉兴佳源多彩铝业有限公司 Coating waste gas circulating system and aluminum plate coating production process applying system
CN106000823A (en) * 2016-06-08 2016-10-12 宜兴市富胜机械有限公司 Metal plate UV roller coating drying system
CN108499822A (en) * 2018-04-10 2018-09-07 江苏鼎胜新能源材料股份有限公司 A kind of hot air circulation curing oven applies machine and working method
CN210718577U (en) * 2019-08-15 2020-06-09 昆山钛研环保科技有限公司 Drying production line and waste gas treatment heat recovery system

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