Deoiling treatment device for rubber discharge waste gas

Abstract

The utility model belongs to the technical field of waste gas treatment, and particularly relates to a rubber discharge waste gas oil removal treatment device which comprises a pretreatment mechanism and a gas discharge mechanism, the pretreatment mechanism comprises a cyclone tower, a wet-type electrostatic oil remover, an oil mist purifier and a filter which are sequentially connected in the waste gas flowing direction, and the gas inlet end of the cyclone tower is used for being connected with a rubber discharge furnace waste gas discharge outlet; the air inlet end of the runner mechanism is connected with the air outlet end of the filter; the air inlet end of the incinerator is connected with the first air outlet end of the rotating wheel mechanism. The chimney is connected with the second gas outlet end of the rotating wheel mechanism and the gas outlet end of the incinerator. According to the deoiling treatment device for the degummed waste gas, through the cyclone tower, the wet-type electrostatic degreaser, the oil mist purifier and the filter, oil-containing waste gas is independently pretreated in a physical mode, oil mist particles with different particle sizes are intercepted step by step, and the problem of peculiar smell of degummed oil is effectively solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste gas treatment, in particular to a glue discharging waste gas oil removal treatment device. BACKGROUND

[0002] In the production process of chip laminated printing, the glue discharging process is one of the key links. In the high-temperature glue discharging process (temperature range: 200-300℃), the internal organic matter of the product is evaporated by heat and forms oil-containing waste gas through the negative pressure pipeline. Such waste gas contains volatile organic compounds (VOCs) and phthalate diester glue discharging oil. Although part of the VOCs has been oxidized and decomposed under high temperature, the waste gas still has the following outstanding problems: first, the waste gas has a significant odor, which seriously affects the production environment and human senses; second, the residual oil mist and glue oil components are easy to adhere to the surface of subsequent treatment equipment, resulting in a decrease in the efficiency of conventional waste gas treatment facilities or even blockage and damage, thereby increasing maintenance costs.

[0003] The traditional end treatment method for VOCs has the following problems: when the glue discharging waste gas concentration is low, the energy consumption is too high if the waste gas directly enters the regenerative oxidation furnace; at the same time, the oil mist component without pretreatment is easy to cause the blockage of the regenerator of the regenerative oxidation furnace or the deactivation of the catalyst. In the existing pretreatment technology, the methods such as water washing, electrostatic or mechanical filtration are separately applied, but the interception efficiency of the small oil mist and glue oil is insufficient, which cannot meet the requirements of odor removal and equipment protection. In addition, the conventional activated carbon adsorption device is easy to fail due to the adhesion of the oil mist, which cannot fundamentally solve the odor problem.

[0004] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present disclosure, and therefore can include information that does not constitute prior art known to those skilled in the art. SUMMARY

[0005] In view of at least one of the above technical problems, the present application provides a glue discharging waste gas oil removal treatment device.

[0006] The present application provides a glue discharging waste gas oil removal treatment device, which comprises:

[0007] A pretreatment mechanism, the pretreatment mechanism comprises a cyclone tower, a wet electrostatic oil removal device, an oil mist purifier and a filter connected in sequence along the flow direction of the waste gas, and the gas inlet end of the cyclone tower is used to connect the waste gas discharge port of the glue discharging furnace;

[0008] A rotary mechanism, the gas inlet end of the rotary mechanism is connected with the gas outlet end of the filter;

[0009] A incinerator, the gas inlet end of the incinerator is connected with the first gas outlet end of the rotary mechanism;

[0010] A chimney, the chimney is connected with the second gas outlet end of the rotary mechanism and the gas outlet end of the incinerator, respectively.

[0011] One of the above technical solutions has at least one of the following advantages or beneficial effects: the glue discharge waste gas oil removal treatment device uses a physical method to separately pretreat the oil-containing waste gas through a cyclone tower, a wet-type electrostatic oil removal device, an oil mist purifier, and a filter, gradually intercepts oil mist particles of different particle sizes, and effectively solves the problem of glue discharge oil odor.

[0012] In some optional implementations, the cyclone tower includes a tower body, a first air inlet pipe, a second air inlet pipe, a first-stage sprayer, and a second-stage sprayer. The first air inlet pipe is arranged at the bottom of the tower body and is connected with a glue discharge furnace waste gas discharge port. The first-stage sprayer is arranged on the first air inlet pipe. The second air inlet pipe is connected with the first air inlet pipe perpendicularly. The second-stage sprayer is arranged on the second air inlet pipe. The second air inlet pipe is connected with the wet-type electrostatic oil removal device.

[0013] In some optional implementations, the first-stage sprayer and the second-stage sprayer are configured to spray circulating water with a flocculating agent.

[0014] In some optional implementations, the oil mist purifier is provided with a composite glass fiber filter core.

[0015] In some optional implementations, the filter includes a plurality of oil removal zones and a deodorization zone connected in sequence. The deodorization zone is connected with the air inlet end of the rotary mechanism.

[0016] In some optional implementations, the deodorization zone is provided with a modified activated carbon adsorption layer filled with a surface-loaded oxidation catalyst.

[0017] In some optional implementations, the rotary mechanism includes an adsorption zone and a desorption zone connected in sequence. The air inlet end of the adsorption zone is connected with the air outlet end of the filter. The air outlet end of the adsorption zone is connected with a chimney. The air outlet end of the desorption zone is connected with the air inlet end of an incinerator.

[0018] The application will be further described below in conjunction with the drawings and examples. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative effort on the basis of these drawings.

[0020] Figure 1 The structural diagram of the glue discharge waste gas oil removal treatment device provided by the embodiments of the present application is shown in the figure. DETAILED DESCRIPTION

[0021] In order to make the above objectives, characteristics and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below with reference to the drawings. In the following description, a large number of specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without departing from the spirit of the present application, so the present application is not limited to the specific embodiments disclosed below.

[0022] As shown in Figure 1 The present embodiment provides a glue discharge waste gas oil removal treatment device, which comprises a pretreatment mechanism 100, a rotating wheel mechanism 200, a burning furnace 300 and a chimney 400.

[0023] The pretreatment mechanism 100 comprises a cyclone tower 110, a wet electrostatic oil removal device 120, an oil mist purifier 130 and a filter 140 connected in sequence along the flow direction of the waste gas, and the gas inlet end of the cyclone tower 110 is used to connect the glue discharge furnace waste gas discharge port; the gas inlet end of the rotating wheel mechanism 200 is connected with the gas outlet end of the filter 140; the gas inlet end of the burning furnace 300 is connected with the first gas outlet end of the rotating wheel mechanism 200; the chimney 400 is connected with the second gas outlet end of the rotating wheel mechanism 200 and the gas outlet end of the burning furnace 300 respectively.

[0024] The glue discharge waste gas oil removal treatment device provided by the present embodiment adopts a physical method to separately pretreat the oil-containing waste gas through the cyclone tower 110, the wet electrostatic oil removal device 120, the oil mist purifier 130 and the filter 140, and intercepts oil mist particles of different particle sizes step by step, and effectively solves the problem of glue discharge oil odor.

[0025] When the oil-containing waste gas enters the pretreatment mechanism 100, the oil-containing waste gas enters the cyclone tower 110, the wet electrostatic oil removal device 120, the oil mist purifier 130 and the filter 140 in sequence. The cyclone tower 110 can remove large particle oil dust in the waste gas. The wet electrostatic oil removal device 120 can separate aerosols and suspended particles in the waste gas. The oil mist purifier 130 can remove the micro oil mist in the waste gas. The filter 140 can remove the odor in the waste gas. Subsequently, the waste gas enters the rotating wheel mechanism 200. The rotating wheel mechanism 200 first adsorbs the volatile pollutants in the waste gas, and the purified air is discharged through the chimney 400. The saturated rotating wheel is regenerated by heat, and then the concentrated organic waste gas is desorbed and introduced into the burning furnace 300, and is subjected to high-temperature oxidation decomposition, and finally is discharged from the chimney 400.

[0026] As shown in Figure 1As shown, in some embodiments, the cyclone tower 110 includes: a tower body, a first air inlet pipe, a second air inlet pipe, a first-stage sprayer, and a second-stage sprayer. The first air inlet pipe is located at the bottom of the tower body and is connected to the exhaust port of the glue removal furnace. The first-stage sprayer is located on the first air inlet pipe. The second air inlet pipe is vertically connected to the first air inlet pipe. The second-stage sprayer is located on the second air inlet pipe. The second air inlet pipe is connected to the wet electrostatic precipitator 120.

[0027] Oily exhaust gas enters the first inlet duct, where the first-stage sprayer sprays the gas, ensuring full gas-liquid contact. Subsequently, the exhaust gas enters the second inlet duct, rises evenly, and passes through the high-density spray washing reaction zone formed by the second-stage sprayer. Finally, it enters the wet electrostatic precipitator 120.

[0028] like Figure 1 As shown, in some embodiments, the first-stage sprayer and the second-stage sprayer are configured to spray circulating water containing flocculant. Adding flocculant to the circulating water enhances the removal of particulate matter and reduces the risk of scaling on the plates of the subsequent wet electrostatic precipitator.

[0029] like Figure 1 As shown, in some embodiments, the oil mist purifier 130 is equipped with a composite glass fiber filter core. This composite glass fiber filter core has high purification efficiency, low operating resistance, and long service life.

[0030] like Figure 1 As shown, in some embodiments, the filter 140 includes a multi-stage oil removal zone and an odor removal zone connected in sequence, and the odor removal zone is connected to the air inlet end of the rotary mechanism 200.

[0031] The multi-stage oil removal zone can remove oily particulate matter from the exhaust gas. The deodorization zone can effectively remove odors from the exhaust gas.

[0032] like Figure 1 As shown, in some embodiments, the deodorization zone is provided with a modified activated carbon adsorption layer filled with a surface-loaded oxidation catalyst.

[0033] like Figure 1 As shown, in some embodiments, the rotary mechanism 200 includes an adsorption zone and a desorption zone connected in sequence. The air inlet of the adsorption zone is connected to the air outlet of the filter 140, the air outlet of the adsorption zone is connected to the chimney 400, and the air outlet of the desorption zone is connected to the air inlet of the incinerator 300.

[0034] The air inlet of the adsorption zone is connected to the air outlet of the filter 140. In this embodiment, the adsorption zone is filled with zeolite molecular sieve adsorbent, which can adsorb volatile pollutants in the exhaust gas. The purified air is discharged through the chimney 400.

[0035] The gas outlet end of the desorption zone is connected to the gas inlet end of the incinerator 300. In the present embodiment, the desorption zone comprises a hot air generator and a circulating fan. The hot air generator heats air, and the circulating fan blows the heated air towards the concentrated exhaust gas adsorbed on the concentration wheel, so as to desorb the concentrated exhaust gas and finally deliver it into the incinerator 300.

[0036] In the description of the present application, it needs to be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0037] In the description of the present application, unless otherwise explicitly specified and limited, the first feature "on" or "under" the second feature can be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only means that the first feature is higher in horizontal height than the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only means that the first feature is lower in horizontal height than the second feature.

[0038] It should be noted that if an element is referred to as "fixed to" or "provided on" another element, it can be directly on the other element or there can be a mediating element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be a mediating element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are only for the purpose of illustration and do not represent the only implementation.

[0039] In the description of the present application, it needs to be understood that the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0040] In the embodiments of the present application, unless specifically defined and limited otherwise, the terms "mounting", "connection", "connecting", "fixing" and the like should be interpreted broadly, for example, can be fixed connection, can also be detachable connection, or integrated; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0041] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Any person skilled in the art can make many possible changes and modifications to the technical solutions of the present application, or modify them into equivalent embodiments with equivalent changes, without departing from the scope of the technical solutions of the present application, by using the methods and technical contents disclosed above. Therefore, any equivalent changes made according to the shape, structure and principle of the present application, without departing from the technical solutions of the present application, should be covered within the protection scope of the present application.

Claims

1. A device for treating oil removal from adhesive discharge waste gas, characterized in that, include: The pretreatment unit includes a cyclone tower, a wet electrostatic precipitator, an oil mist purifier, and a filter connected in sequence along the direction of exhaust gas flow. The air inlet of the cyclone tower is used to connect to the exhaust gas outlet of the glue removal furnace. A rotary mechanism, wherein the air inlet end of the rotary mechanism is connected to the air outlet end of the filter; An incinerator, wherein the air inlet of the incinerator is connected to the first air outlet of the rotary mechanism; The chimney is connected to the second gas outlet of the rotary mechanism and the gas outlet of the incinerator.

2. The oil removal treatment device for adhesive discharge waste gas according to claim 1, characterized in that, The cyclone tower includes: a tower body, a first air inlet pipe, a second air inlet pipe, a first-stage sprayer, and a second-stage sprayer. The first air inlet pipe is located at the bottom of the tower body and is connected to the exhaust port of the glue removal furnace. The first-stage sprayer is located on the first air inlet pipe. The second air inlet pipe is perpendicularly connected to the first air inlet pipe and is located on the second air inlet pipe. The second air inlet pipe is connected to the wet electrostatic precipitator.

3. The oil removal treatment device for adhesive discharge waste gas according to claim 2, characterized in that, The first-stage sprayer and the second-stage sprayer are configured to spray circulating water containing flocculant.

4. The oil removal treatment device for adhesive discharge waste gas according to claim 1, characterized in that, The oil mist purifier is equipped with a composite glass fiber filter core.

5. The oil removal treatment device for adhesive discharge waste gas according to claim 1, characterized in that, The filter includes a multi-stage oil removal zone and an odor removal zone connected in sequence, and the odor removal zone is connected to the air inlet end of the rotary mechanism.

6. The oil removal treatment device for adhesive discharge waste gas according to claim 5, characterized in that, The deodorization zone is equipped with a modified activated carbon adsorption layer filled with a surface-loaded oxidation catalyst.

7. The oil removal treatment device for adhesive discharge waste gas according to claim 1, characterized in that, The rotating mechanism includes an adsorption zone and a desorption zone connected in sequence. The air inlet of the adsorption zone is connected to the air outlet of the filter, the air outlet of the adsorption zone is connected to the chimney, and the air outlet of the desorption zone is connected to the air inlet of the incinerator.

Images