CN217939637U - Organic waste gas treatment device - Google Patents
Organic waste gas treatment device Download PDFInfo
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- CN217939637U CN217939637U CN202221327872.5U CN202221327872U CN217939637U CN 217939637 U CN217939637 U CN 217939637U CN 202221327872 U CN202221327872 U CN 202221327872U CN 217939637 U CN217939637 U CN 217939637U
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Abstract
The utility model particularly discloses an organic waste gas treatment device, which comprises a primary treatment device, a spray tower, a UV curing furnace, a multi-stage filter, an adsorption cylinder and a heat accumulation type heating power incinerator, wherein the primary treatment device is used for receiving paint mist generated by a paint spraying machine and carrying out primary treatment on the paint mist; the spray tower is used for further treating paint slag and paint mist in the waste gas; the UV curing furnace is used for curing paint mist in the waste gas; the multistage filter is used for intercepting and absorbing paint mist particles; the adsorption cylinder is used for absorbing volatile organic substances in the waste gas and discharging the purified gas to a chimney; the heat accumulating type thermal incinerator is used for treating the waste gas desorbed from the adsorption cylinder and discharging the treated gas to a chimney. The utility model discloses waste gas treatment is efficient and the treatment effect good, is fit for the coating cloud recovery processing among all kinds of spray paint processes.
Description
Technical Field
The utility model relates to a waste gas treatment technical field, concretely relates to organic waste gas treatment device.
Background
Paint spraying machines are important equipment in the paint spraying treatment process of comprehensive wood products, and generally produce the following two pollutants mainly in the paint spraying process:
paint mist, namely, paint releases trace particles under the action of high pressure, and the paint particles are dispersed with air flow to form paint mist;
the organic waste gas-organic solvent is used for diluting the paint to achieve the aim of smooth and attractive paint surface, but the organic solvent cannot be attached to the surface of a painted object along with the paint, and the organic solvent is completely released to form organic waste gas (the main component is VOCs) in the paint spraying process; the organic waste gas is irritant colorless gas, and can be breathed or directly acted on human body when being discharged into the atmosphere, thus causing great harm to people and seriously affecting the surrounding environment. And the prior adsorption device can not treat the organic waste gas with high efficiency.
SUMMERY OF THE UTILITY MODEL
The produced pollutant and the unable high efficiency treatment organic waste gas's of unable complete clear away the paint spraying process defect to the above-mentioned existence, the utility model provides an organic waste gas treatment device is used for overcoming above-mentioned defect.
An organic waste gas treatment device comprises
The primary treatment device is used for receiving paint mist generated by the paint spraying machine and carrying out primary treatment on the paint mist;
the spray tower is used for further treating paint slag and paint mist in the waste gas;
the UV curing oven is used for curing the paint mist in the waste gas;
the multistage filter is used for intercepting and absorbing paint mist particles;
the adsorption cylinder is used for absorbing organic substances in the waste gas and discharging the purified gas to a chimney;
the heat accumulating type thermal incinerator is used for treating the waste gas desorbed by the adsorption cylinder and discharging the treated gas to a chimney.
As a preferred scheme, the primary treatment device comprises a box body, a baffle isolation net and a sponge filter net are sequentially arranged in the box body from bottom to top, an air inlet of the box body is arranged below the baffle isolation net, and an air outlet of the box body is arranged above the sponge filter net;
and a recovery box is arranged at the bottom of the box body and is arranged below the baffle isolation net.
As a preferred scheme, an air inlet of the spray tower is connected with an air outlet pipeline of the box body, a filler absorption module is arranged in the spray tower, and an air inlet of the spray tower is arranged at the lower end of the filler absorption module;
the spray gun is arranged above the packing absorption module, the absorbent pool is arranged at the bottom side of the spray tower, and a pump body for conveying the absorbent to the spray gun is arranged on the absorbent pool.
As a preferred scheme, an air outlet of the spray tower is communicated with an air inlet of the UV curing furnace, and an air outlet of the UV curing furnace is communicated with an air inlet of the multi-stage filter.
Preferably, a glass fiber cotton primary filter, an F5-stage filter bag type medium-efficiency filter and an F9-stage filter bag type high-efficiency filter are sequentially arranged in the multi-stage filter along the direction from air inlet to air outlet.
Preferably, a honeycomb-shaped zeolite molecular sieve rotating cylinder is arranged in the adsorption cylinder, and comprises an adsorption zone and a desorption zone;
the air inlet of the adsorption cylinder is arranged towards the adsorption area of the honeycomb-shaped zeolite molecular sieve rotary cylinder, the middle part of the honeycomb-shaped zeolite molecular sieve rotary cylinder forms an air outlet channel, and the air outlet channel is communicated with a chimney;
a first fan is arranged between the multistage filter and the adsorption cylinder.
As a preferable scheme, the device further comprises a second fan, a heat exchanger and a heater, wherein the second fan is used for conveying part of gas discharged from the air outlet channel in the middle of the honeycomb zeolite molecular sieve rotary drum to a cold pipe of the heat exchanger for heat exchange and temperature rise, and the gas is further heated by the heater and then blown to the desorption region of the honeycomb zeolite molecular sieve rotary drum through the air outlet channel.
Preferably, the adsorption cylinder is further provided with a desorption gas outlet, the desorption gas outlet is arranged corresponding to the desorption area of the honeycomb-shaped zeolite molecular sieve rotary cylinder, the desorption gas outlet is communicated with the gas inlet of the heat accumulating type thermal incinerator, and the gas outlet of the heat accumulating type thermal incinerator is communicated with a chimney.
As a preferred scheme, a bypass valve is arranged on the heat accumulating type thermal power incinerator and is communicated with a heat pipe of a heat exchanger, and an air outlet of the heat pipe of the heat exchanger is communicated with a chimney; and the heat pipes and the cold pipes in the heat exchanger realize heat exchange.
Has the beneficial effects that: the utility model discloses utilize primary treatment device to carry out the recycle of paint, avoid the waste of the energy, and the spray column then adopts the organic composition of spraying in the mode with waste gas to get rid of, the UV curing oven then gets rid of the paint molecule solidification separation in the waste gas, again by multi-stage filter, adsorb a section of thick bamboo and heat accumulation formula heating power incinerator further with the fog particle interception, absorb, thereby reach the purpose of purifying the coating cloud, adopt zeolite adsorption concentration + RTO to burn the combined process simultaneously, entire system has realized the purification, desorption process closed cycle, compare with the organic waste gas purification device of recovery type, need not be equipped with additional energy such as steam, also need not be equipped with additional equipment such as cooling tower, the operation process does not produce secondary pollution, can regenerate through hot-air desorption behind the adsorbent saturation.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1-a paint spraying machine; 2-primary treatment means; 3-a spray tower; 4-UV curing oven; 5-a multi-stage filter; 6-a first fan; 7-an adsorption cylinder; 8-a second fan; 9-a heat exchanger; 10-a heater; 11-a regenerative thermal oxidizer; 12-a chimney; 201-baffle isolation net; 202-sponge filter screen; 203-a recovery box; 301-a filler absorption module; 302-spray gun; 303-an absorbent pool; 501-glass silk floss primary filter; a 502-F5 grade filter bag type medium efficiency filter; 503-F9 grade filter bag type high efficiency filter; 701-honeycomb zeolite molecular sieve rotating cylinder.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic drawings and illustrate the basic structure of the present invention only in a schematic manner, and thus show only the components related to the present invention.
In the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "between", "air inlet", "air outlet", etc. indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific direction, be constructed in a specific direction and be operated, and thus, should not be construed as limiting the present invention; the terms "first", "second", and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, as they may be fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as a specific case by those skilled in the art.
As shown in fig. 1, the utility model provides an organic waste gas treatment device, which comprises a primary treatment device 2, a spray tower 3, a UV curing furnace 4, a multi-stage filter 5, an adsorption cylinder 7 and a heat accumulating type thermal incinerator 11, wherein the primary treatment device 2 is used for receiving paint mist generated by a paint sprayer 1 and carrying out primary treatment on the paint mist; the spray tower 3 is used for further treating paint slag and paint mist in the waste gas; the UV curing oven 4 is used for curing paint mist in the waste gas, and the multistage filter 5 is used for intercepting and absorbing paint mist particles; the adsorption cylinder 7 is used for absorbing organic substances in the waste gas and discharging the purified gas to a chimney; the heat accumulating type thermal incinerator 11 is used for treating the waste gas desorbed from the adsorption cylinder 7 and leading the treated gas to a chimney for discharging. The utility model discloses utilize primary treatment device 2 to carry out the recycle of paint, avoid the waste of the energy, and spray column 3 then adopts the organic composition of spraying in the mode with waste gas to get rid of, UV curing oven 4 then gets rid of the paint molecule solidification separation in the waste gas, again by multi-stage filter 5, an absorption section of thick bamboo 7 and heat accumulation formula heating power burn burning furnace 11 and further with the fog particle interception, absorb, thereby reach the purpose of purifying the coating cloud, adopt zeolite adsorption concentration + RTO to burn the combined process simultaneously, entire system has realized the purification, desorption process closed cycle, compare with recovery type organic waste gas purification device, need not be equipped with additional energy such as steam, also need not be equipped with additional equipment such as cooling tower, the operation process does not produce secondary pollution, can regenerate through hot-air desorption behind the adsorbent saturation.
In some examples of the present invention, the primary treatment device 2 includes a box body, a baffle separation net 201 and a sponge filter net 202 are sequentially arranged inside the box body from bottom to top, an air inlet of the box body is arranged below the baffle separation net 201, and an air outlet of the box body is arranged above the sponge filter net 202; the bottom of the box body is provided with a recovery box 203, and the recovery box 203 is arranged below the baffle isolation net 201. By adopting the scheme, after the paint mist enters the box body through the air inlet of the box body, the baffle isolation net 201 filters solid and liquid paint mist, the gaseous paint mist is preliminarily filtered by the sponge filter net 202, and the filtered paint mist is converged into the recovery box 203 for recycling, so that the energy waste is saved, and the cost is reduced.
In some examples of the present invention, the air inlet of the spray tower 3 is connected to the air outlet pipeline of the box body, a filler absorption module 301 is arranged in the spray tower 3, and the air inlet of the spray tower 3 is arranged at the lower end of the filler absorption module 301; a spray gun 302 is arranged above the packing absorption module 301, an absorbent pool 303 is arranged at the bottom side of the spray tower 3, and a pump body for conveying an absorbent to the spray gun 302 is arranged on the absorbent pool 303; and the air outlet of the spray tower 3 is communicated with the air inlet of the UV curing furnace 4, and the air outlet of the UV curing furnace 4 is communicated with the air inlet of the multi-stage filter 5. The paint slag and the paint mist in the waste gas are washed to the bottom of the tower by a water curtain and are discharged, the water-insoluble volatile organic compounds are discharged into the subsequent multi-stage filter 5 by a fan, and more than 85 percent of the paint slag and the paint mist in the waste gas can be removed by adopting a spraying mode. Organic waste gas lets in the spray column, and water forms the liquid film on the surface of packing absorption module 301, and the double-phase flow mode of gas-liquid adopts countercurrent operation usually in the tower, and the absorbent adds top-down with the top of the tower and flows, and with the gaseous contact of flowing from down upwards, utilizes the big characteristics of packing specific surface area, and the liquid film is more abundant with gaseous contact, has improved absorption efficiency, and the liquid that has absorbed the absorbate is discharged from the bottom of the tower, and the gas after the purification is discharged from the top of the tower to make lacquer sediment and coating cloud separate from waste gas.
In some examples of the present invention, the multi-stage filter 5 is provided with a glass fiber cotton primary filter 501, a F5-stage filter bag type intermediate filter 502 and a F9-stage filter bag type high efficiency filter 503 in sequence along the direction from the air inlet to the air outlet. The dry filter adopts a special dry paint mist filtering material as a core component, clean waste gas which cannot be treated in the front-stage process passes through multiple gradually-encrypted flame-retardant glass fiber materials, paint mist particles are held in the surface area of the materials under the actions of interception, collision, absorption and the like, and are agglomerated and accumulated, so that the aim of purifying the paint mist is fulfilled. When organic waste gas with paint mist in a production workshop passes through the high-efficiency water curtain cabinet, about 85% of paint slag and paint mist are washed and settled in the collecting tank, and waste gas with partial paint slag, paint mist and moisture enters the glass wool primary filter through the collecting pipeline. The paint mist and the water are filtered by the glass wool stacked in a lamination way and are agglomerated on the surface and the inside of the glass wool, and the waste gas from which most of paint slag and water are removed enters a subsequent filter through the filter layer. When the waste gas enters the F5 grade filter bag type middle-effect filter, fine dust and the like which cannot be treated in the previous working procedure are filtered by the F5 grade filter bag made of non-woven fabrics (95 percent), and the relatively clean waste gas passes through the subsequent filter. The F9 grade filter bag filters out the extremely small dust (99%) caused by the breakage or leakage of the filter material in the previous process. The F9 grade filter bag finally and effectively protects the subsequent molecular sieve adsorbent from being polluted by impurities.
In some examples of the present invention, a honeycomb zeolite molecular sieve drum 701 is disposed in the adsorption cylinder 7, and the honeycomb zeolite molecular sieve drum 701 includes an adsorption zone and a desorption zone; the air inlet of the adsorption cylinder 7 is arranged towards the adsorption area of the honeycomb-shaped zeolite molecular sieve rotary cylinder 701, the middle part of the honeycomb-shaped zeolite molecular sieve rotary cylinder 701 forms an air outlet channel, and the air outlet channel is communicated with a chimney; a first fan 6 is arranged between the multistage filter 5 and the adsorption cylinder 7. An adsorption area and a desorption area are formed inside the adsorption cylinder 7, when a part of the honeycomb-shaped zeolite molecular sieve 701 is adsorbed and saturated in the adsorption area, the part of the honeycomb-shaped zeolite molecular sieve 701 is rotated to slowly enter the desorption area, and after the desorbed honeycomb-shaped zeolite molecular sieve 701 is naturally cooled, the part of the honeycomb-shaped zeolite molecular sieve returns to the adsorption area along with the rotation to continue the adsorption work.
In some examples of the present invention, the organic waste gas treatment apparatus further includes a second fan 8, a heat exchanger 9 and a heater 10, the second fan 8 is used for conveying part of the gas discharged from the air outlet channel in the middle of the honeycomb zeolite molecular sieve drum 701 to the cold pipe of the heat exchanger 9 for heat exchange and temperature rise, and the gas is further heated by the heater 10 and then blown to the desorption region of the honeycomb zeolite molecular sieve drum 701 through the air outlet channel; a desorption gas outlet is also arranged on the adsorption cylinder 7, the desorption gas outlet is arranged corresponding to the desorption area of the honeycomb-shaped zeolite molecular sieve rotary cylinder 701, the desorption gas outlet is communicated with a gas inlet of the heat accumulating type thermal incinerator 11, and a gas outlet of the heat accumulating type thermal incinerator 11 is communicated with a chimney; a bypass valve is arranged on the heat accumulating type thermal incinerator 11 and is communicated with a heat pipe of the heat exchanger 9, and an air outlet of the heat pipe of the heat exchanger 9 is communicated with a chimney; the heat pipes and the cold pipes in the heat exchanger 9 realize heat exchange.
The organic waste gas with most of water and paint slag (paint mist) removed is introduced into the adsorption cylinder 7 and fully contacted with the honeycomb-shaped zeolite molecular sieve rotary cylinder 701, the gas is purified by utilizing the strong adsorbability of the molecular sieve to organic substances, and the treated gas can reach the standard for emission. When the molecular sieve is saturated, the molecular sieve slowly enters a desorption area along with rotation. The honeycomb zeolite molecular sieve rotating drum 701 entering the desorption zone is rapidly heated to 180-210 ℃ by hot air, and the adsorbed volatile organic compounds are blown away from the molecular sieve and are sent to a Regenerative Thermal Oxidizer (RTO) along with the hot air for combustion. The desorbed molecular sieve is naturally cooled and returns to the adsorption area along with rotation to continue adsorption. Thus, the operation is circulated.
The adsorption of organic waste gas by utilizing the adsorption characteristic of microporous molecular sieves is the most effective industrial treatment means. After the modified molecular sieve is activated, the specific surface area can reach 600-700m 2 Per gram, has excellent and broad adsorption capacity. The adsorption can make the purification efficiency of the organic waste gas reach 90-95%. The modified molecular sieve is also a nonpolar adsorbent, has hydrophobic and organophilic properties, and can adsorb specified organic gases, such as benzenes, aldehydes and ketones, alcohols, hydrocarbons and the like, and malodorous substances. After the molecular sieve is adsorbed and saturated, the molecular sieve can be desorbed and regenerated by hot air, so that the molecular sieve is put into use again. The zeolite rotating wheel adsorption equipment is internally provided with a rotation driving part, and the adsorption concentration multiple of waste gas can be effectively improved by 10-40 times by adjusting the rotation degree of the driving equipment.
The waste gas desorbed from the desorption area is sent into a first heat storage chamber of a heat storage type thermal incinerator (RTO), the waste gas is heated by a preheated heat storage body in the rising process, organic matter molecules begin to generate oxidation reaction in the rising process, the gas finally enters the incineration chamber, the gas is thoroughly decomposed into carbon dioxide (CO 2) and water (H20) at high temperature, a large amount of heat is generated, and hot gas enters the heat storage chamber 2 to heat the heat storage body. And finally, leading the finally treated gas out of the RTO outlet to a chimney for emission. And the heat accumulator of the heat accumulation chamber 2 absorbs heat and is used for heating the newly input low-temperature waste gas in the next cycle.
The utility model discloses VOC exhaust-gas treatment equipment can long-term continuous reliable operation, do not influence production, guarantee operating personnel's healthy health demand, the back is collected to the coating cloud, through recovery processing + photocuring + high-efficient spraying + filtration preliminary treatment most coating cloud, it adsorbs concentration + RTO to adopt zeolite at last and burns the combined process, entire system has realized the purification, desorption process closed cycle, compare with recovery type organic waste gas purification device, need not be equipped with additional energy such as steam, also need not be equipped with additional equipment such as cooling tower, the operation process does not produce secondary pollution, through hot-air desorption renewable use after the adsorbent saturation.
In the description herein, references to the description of the terms "one embodiment," "certain embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present specification describes embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and it is to be understood that all embodiments may be combined as appropriate by one of ordinary skill in the art to form other embodiments as will be apparent to those of skill in the art from the description herein.
Claims (9)
1. An organic waste gas treatment device is characterized by comprising
The primary treatment device is used for receiving paint mist generated by the paint spraying machine and carrying out primary treatment on the paint mist;
the spray tower is used for further treating paint slag and paint mist in the waste gas;
the UV curing oven is used for curing the paint mist in the waste gas;
the multistage filter is used for intercepting and absorbing paint mist particles;
the adsorption cylinder is used for absorbing organic substances in the waste gas and discharging the purified gas to a chimney;
the heat accumulating type thermal incinerator is used for treating the waste gas desorbed from the adsorption cylinder and discharging the treated gas to a chimney.
2. The organic waste gas treatment device according to claim 1, wherein the primary treatment device comprises a box body, a baffle separation net and a sponge filter net are sequentially arranged in the box body from bottom to top, an air inlet of the box body is arranged below the baffle separation net, and an air outlet of the box body is arranged above the sponge filter net;
and a recovery box is arranged at the bottom of the box body and is arranged below the baffle isolation net.
3. The organic waste gas treatment device according to claim 2, wherein the gas inlet of the spray tower is connected with the gas outlet pipeline of the box body, a filler absorption module is arranged in the spray tower, and the gas inlet of the spray tower is arranged at the lower end of the filler absorption module;
the spray gun is arranged above the packing absorption module, the absorbent pool is arranged at the bottom side of the spray tower, and a pump body for conveying the absorbent to the spray gun is arranged on the absorbent pool.
4. The organic waste gas treatment device according to claim 3, wherein an air outlet of the spray tower is communicated with an air inlet of the UV curing furnace, and an air outlet of the UV curing furnace is communicated with an air inlet of the multi-stage filter.
5. The organic waste gas treatment device according to claim 4, wherein a glass wool primary filter, a F5 grade filter bag type medium-effect filter and a F9 grade filter bag type high-effect filter are sequentially arranged in the multi-stage filter along the direction from the inlet to the outlet.
6. The organic waste gas treatment device according to claim 5, wherein a honeycomb zeolite molecular sieve rotating cylinder is arranged in the adsorption cylinder, and the honeycomb zeolite molecular sieve rotating cylinder comprises an adsorption zone and a desorption zone;
the air inlet of the adsorption cylinder is arranged towards the adsorption area of the honeycomb-shaped zeolite molecular sieve rotary cylinder, the middle part of the honeycomb-shaped zeolite molecular sieve rotary cylinder forms an air outlet channel, and the air outlet channel is communicated with a chimney;
a first fan is arranged between the multistage filter and the adsorption cylinder.
7. The organic waste gas treatment device according to claim 6, further comprising a second fan, a heat exchanger and a heater, wherein the second fan is used for conveying a part of gas discharged from the air outlet channel in the middle of the honeycomb zeolite molecular sieve drum to a cold pipe of the heat exchanger for heat exchange and temperature rise, and the gas is further heated by the heater and then blown to the desorption zone of the honeycomb zeolite molecular sieve drum through the air outlet channel.
8. The organic waste gas treatment device according to claim 7, wherein the adsorption cylinder is further provided with a desorption gas outlet, the desorption gas outlet is arranged corresponding to the desorption zone of the honeycomb zeolite molecular sieve rotary cylinder, the desorption gas outlet is communicated with a gas inlet of a regenerative thermal incinerator, and a gas outlet of the regenerative thermal incinerator is communicated with a chimney.
9. The organic waste gas treatment device according to claim 8, wherein a bypass valve is provided on the regenerative thermal oxidizer, the bypass valve is communicated with a heat pipe of a heat exchanger, and an air outlet of the heat pipe of the heat exchanger is communicated with a chimney; the heat pipes and the cold pipes in the heat exchanger realize heat exchange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221327872.5U CN217939637U (en) | 2022-05-31 | 2022-05-31 | Organic waste gas treatment device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221327872.5U CN217939637U (en) | 2022-05-31 | 2022-05-31 | Organic waste gas treatment device |
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| Publication Number | Publication Date |
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| CN217939637U true CN217939637U (en) | 2022-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221327872.5U Active CN217939637U (en) | 2022-05-31 | 2022-05-31 | Organic waste gas treatment device |
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| CN (1) | CN217939637U (en) |
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