CN218281152U - Tail gas treatment device for production of furan resin casting adhesive - Google Patents

Abstract

The utility model relates to a tail gas treatment device for the production of furan resin casting adhesives, comprising a filter box, the left side of the filter box is connected with an air intake pipe, the inner walls of the left and right sides of the filter box are provided with filter mechanisms, and the filter box A purification box is fixed on the upper surface of the purification box. The inner bottom wall of the purification box is provided with a purification mechanism. The filter mechanism includes support plates fixed on the inner walls of the left and right sides of the filter box. The upper surfaces of the two support plates are placed with collecting frame. The tail gas treatment device for the production of furan resin casting adhesives is equipped with a filter mechanism, and through the mutual cooperation between the collection frame, water filter plate, water guide pipe, atomization nozzle and breathable plate, etc., it can The water flow is atomized and sprayed, and the solid dust and impurities in the exhaust gas are sprayed and precipitated to prevent the dust in the exhaust gas from polluting the surrounding ecological environment. The filtering effect is good and it is convenient for exhaust gas treatment.

Description

Tail gas treatment device for furan resin foundry adhesive production

technical field

The utility model relates to the technical field of tail gas treatment, in particular to a tail gas treatment device for furan resin casting adhesive production.

Background technique

Furan resin refers to the general term for resins produced with furfuryl alcohol and furfural having a furan ring as raw materials. It has outstanding corrosion resistance, heat resistance, wide source of raw materials, and simple production process. It has attracted people's attention. It is widely used in the metallurgical foundry industry as a foundry adhesive for molding, and waste gas is often produced during the production of furan resin foundry adhesives.

Based on the above, it is found that there are the following problems: for example, the Chinese Utility Model Patent Publication No.: (CN208771121U) discloses the tail gas treatment device for furan resin production, which relates to the chemical technology field, and solves the problem that the existing tail gas treatment device is often trapped in the tail gas when absorbing sulfur dioxide. Interference with unburned solid substances leads to poor absorption effect of the absorbent, resulting in waste of resources and increased production costs. The utility model belongs to the field of chemical technology and discloses a tail gas treatment device for furan resin production, including Base, the upper part of the base is provided with an exhaust air duct, one end of the exhaust air duct is provided with a filter cover, the upper part of the filter cover is provided with an activated carbon adsorber, and the upper part of the activated carbon adsorber is provided with an exhaust air duct. Fan, the top of the exhaust fan communicates with the chimney; the upper part of the base is provided with a support surface, the upper part of the support surface is provided with a through hole communicating with the exhaust air duct, and the upper part of the through hole is fixed with a grille, The upper part of the support surface is provided with a clean room, the upper part of the clean room is provided with a through hole, and the upper part of the through hole is provided with a filter screen. The utility model works through the exhaust fan. The exhaust gas first passes through the filter screen and enters the interior of the exhaust air duct through the grille, and then is absorbed by the activated carbon adsorber, which can play a role in purification. The utility model passes through the filter screen and activated carbon. The adsorber filters and purifies the exhaust gas. There is only a single-layer filtration and purification, and the small dust and some harmful gases in the exhaust gas cannot be completely purified. After the dust and harmful gases that have not been purified and filtered are discharged, they will cause damage to the surrounding ecological environment. Great pollution.

Utility model content

Aiming at the deficiencies of the prior art, the utility model provides a tail gas treatment device for the production of furan resin casting adhesives, which has the advantages of good purification effect and solves the problem that the small dust in the waste gas and some harmful gases cannot be completely purified. question.

In order to achieve the above object, the utility model provides the following technical proposal: the exhaust gas treatment device for the production of furan resin casting adhesives, including a filter box, the left side of the filter box is connected with an air intake pipe, and the inner walls of the left and right sides of the filter box are A filter mechanism is provided, a purification box is fixed on the upper surface of the filter box, and a purification mechanism is provided on the inner bottom wall of the purification box;

The filter mechanism includes support plates fixed on the inner walls of the left and right sides of the filter box. A collection frame is placed on the upper surfaces of the two support plates. The inner bottom wall of the collection frame is provided with a filter port, and the inside of the filter port is A water filter plate is fixed, and a water guide pipe is horizontally arranged between the inner walls of the left and right sides of the filter box. A breathable plate is fixed between the inner walls of the four sides of the filter box, a deflector is fixed between the inner walls of the four sides of the filter box, and a drainage pipe is connected to the bottom of the right side of the filter box.

Further, two support columns are fixed on the upper surface of the purification box, rain covers are fixed on the upper surfaces of the two support columns, and an air exhaust port is provided on the inner top wall of the filter box.

Further, the shape of the collection frame is a hollow cuboid with a missing top surface, and the left end of the water delivery pipe runs through and extends to the inside of the filter box and communicates with the water guide pipe.

Further, the number of the atomizing nozzles is not less than two, and they are evenly distributed on the outer surface of the water conduit.

Further, the purification mechanism includes an exhaust fan fixed on the inner bottom wall of the purification box, the air inlet end of the exhaust fan is located inside the air outlet, and an exhaust pipe is fixed at the outlet end of the exhaust fan, and the purification box A diffuser cover is fixed between the four inner walls of the exhaust pipe, the top of the exhaust pipe communicates with the lower surface of the diffuser cover, the first filter layer is fixed between the four inner walls of the clean box, and the clean box A second filter layer is fixed between the inner walls of the four sides and above the first filter layer, and a purification layer is fixed between the inner walls of the four sides of the purification box and above the second filter layer, and the four sides of the purification box A shroud is fixed between the inner walls.

Further, a discharge port is opened on the inner top wall of the purification box, and a discharge pipe is fixed inside the discharge port.

Further, both the first filter layer and the second filter layer are activated carbon layers, and the purification layer is a rare earth filter layer.

Compared with the prior art, the technical solution of the present application has the following beneficial effects:

1. The tail gas treatment device for the production of furan resin casting adhesives is equipped with a filter mechanism, and through the mutual cooperation between the collection frame, water filter plate, water guide pipe, atomization nozzle and breathable plate, it can be used in the filter box. The interior sprays out the water flow, sprays and precipitates the solid dust and impurities in the exhaust gas, avoids the dust in the exhaust gas from polluting the surrounding ecological environment, and has a good filtering effect, which is convenient for exhaust gas treatment.

2. The tail gas treatment device for the production of furan resin casting adhesives is equipped with a purification mechanism, and through the mutual cooperation between the exhaust fan, the first filter layer, the second filter layer, the purification layer and the discharge pipe, etc., the filter can be cleaned. The miscellaneous exhaust gas is extracted, and the exhaust gas is filtered twice at the same time to avoid unsatisfactory filtering effect. At the same time, the filtered exhaust gas can purify the residual harmful gas through the purification layer, so that the exhaust gas can meet the emission standard and improve the practicability of the device.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the utility model filtering mechanism schematic diagram;

Fig. 3 is a schematic diagram of the purification mechanism of the present invention.

In the figure: 1 filter box, 2 air intake pipe, 3 filter mechanism, 301 support plate, 302 collection frame, 303 filter port, 304 water filter plate, 305 water guide pipe, 306 atomizing nozzle pipe, 307 water delivery pipe, 308 air-permeable plate, 309 deflector, 310 drain pipe, 4 purification box, 5 purification mechanism, 501 exhaust fan, 502 exhaust pipe, 503 expansion cover, 504 first filter layer, 505 second filter layer, 506 purification layer, 507 diversion Cover, 508 discharge pipe, 6 support columns, 7 rain cover.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1, the tail gas treatment device for the production of furan resin casting adhesives in the present embodiment includes a filter box 1, and the left side of the filter box 1 is communicated with an air inlet pipe 2 for discharging exhaust gas into the inside of the filter box 1 , The left and right sides of the filter box 1 are provided with a filter mechanism 3, the upper surface of the filter box 1 is fixed with a purification box 4, and the inner bottom wall of the purification box 4 is provided with a purification mechanism 5.

In the present embodiment, two support columns 6 are fixed on the upper surface of the purification box 4, and a rain cover 7 is fixed on the upper surface of the two support columns 6, so as to prevent the water flow from entering the purification box through the discharge pipe 508 due to rain and snow. 4 Inside, affecting the purification treatment of exhaust gas, the inner top wall of the filter box 1 is provided with an air exhaust port.

Please refer to Fig. 2, in order to carry out filtering impurity to the tail gas that furan resin casting binder produces, filter mechanism 3 among the present embodiment comprises the support plate 301 that is fixed on filter box 1 left and right sides inner walls, the top of two support plates 301 A collection frame 302 is placed on the surface, and the atomized water flow adheres to the solid dust and impurities in the exhaust gas entering the interior of the filter box 1, increasing its weight to separate it from the exhaust gas, and the falling impurities fall into the collection frame On the water filter plate 304 inside 302, the inner bottom wall of the collection frame 302 is provided with a filter port 303, and the inside of the filter port 303 is fixed with a water filter plate 304, and the water in the substance is filtered by the water filter plate 304 and dripped into the filter box 1, the impurities stay in the collection frame 302 to collect and wait for centralized treatment. A water guide pipe 305 is horizontally arranged between the inner walls of the left and right sides of the filter box 1, and the outer surface of the water guide pipe 305 is connected with an atomizing nozzle 306 to filter The right side of the box 1 is connected with a water delivery pipe 307, which is connected with the external water pump through the water delivery pipe 307, and the water pump is started to draw water to flow through the water delivery pipe 307 into the inside of the water guide pipe 305, and the four side inner walls of the filter box 1 are fixed with air-permeable Plate 308, the floating tail gas passes through the breathable plate 308, the breathable plate 308 is a waterproof and breathable material, and the water is isolated after the gas passes through, so as to prevent the tail gas from being mixed with water vapor and affect the subsequent purification effect. The flow plate 309 and the bottom of the right side of the filter box 1 are connected with a drainpipe 310, which connects the drainpipe 310 with an external purifier, and the waste water at the bottom of the filter box 1 is discharged through the drainpipe 310 and can be recycled after being purified.

In this embodiment, the shape of the collection frame 302 is a cuboid with a hollow interior and a missing top surface. The left end of the water delivery pipe 307 runs through and extends to the inside of the filter box 1 and communicates with the water guide pipe 305. The number of atomizing nozzles 306 is different. Less than two, and evenly distributed on the outer surface of the water guide pipe 305, the water flow is transported into the inside of the water guide pipe 305 through the water delivery pipe 307, and then the water flow is atomized and sprayed by a plurality of atomizing nozzles 306, so that it can be combined with The impurities and dust in the exhaust gas are fully mixed to improve the filtering effect.

Please refer to Fig. 3, in order to filter and purify the tail gas produced by the furan resin casting binder, the purification mechanism 5 in the present embodiment includes an exhaust fan 501 fixed on the inner bottom wall of the purification box 4, starts the exhaust fan 501, and passes through the air intake The tail gas is extracted from the exhaust port, and the tail gas passes through the air exhaust port and enters through the exhaust pipe 502 to the diffuser cover 503. The air inlet end of the exhaust fan 501 is located inside the air exhaust port, and the air outlet end of the exhaust fan 501 is fixed with an exhaust pipe 502. The air diffuser 503 is fixed between the inner walls of the four sides of the purification box 4. The air diffuser 503 disperses and expands the exhaust gas, and then the exhaust gas is pushed up by the follow-up exhaust gas. The surface is connected, the first filter layer 504 is fixed between the four side inner walls of the purification box 4, and the second filter layer 505 is fixed between the four side inner walls of the purification box 4 and above the first filter layer 504, the second filter layer 505 filters out a small portion of harmful substances that have not been filtered out in the exhaust gas. A purification layer 506 is fixed between the four-side inner walls of the purification box 4 and above the second filter layer 505. Between the four-side inner walls of the purification box 4 A wind deflector 507 is fixed, and then the purified and filtered exhaust gas is guided through the wind deflector 507 and passed through the discharge pipe 508 for discharge.

In the present embodiment, the inner top wall of the purification box 4 is provided with a discharge port, and the inside of the discharge port is fixed with a discharge pipe 508, the first filter layer 504 and the second filter layer 505 are activated carbon layers, and the first filter layer 504 The exhaust gas is initially filtered to remove most harmful substances. The purification layer 506 is a rare earth filter layer. The purification layer 506 can absorb and transform harmful gases in the exhaust gas so that the exhaust gas meets the emission standards.

The working principle of the above-mentioned embodiment is:

(1) When the tail gas produced by the furan resin casting adhesive is filtered for impurities, the tail gas is discharged to the inside of the filter box 1 through the intake pipe 2, and is connected with the external water pump through the water pipe 307 at the same time, and the water pump is started to draw water through the pipe The water pipe 307 is transported into the inside of the water guide pipe 305, and then the water flow is atomized and sprayed by a plurality of atomizing nozzles 306, and the atomized water flow and the solid dust and impurities in the exhaust gas entering the interior of the filter box 1 are carried out. Adhesion, increasing its weight to separate it from the exhaust gas, then the exhaust gas floats up, the impurities fall, and the falling impurities fall on the water filter plate 304 inside the collection frame 302, and the moisture in the impurities is filtered by the water filter plate 304 and drips to the At the bottom of the filter box 1, the impurities stay in the collection frame 302 to be collected and wait for centralized treatment. The drain pipe 310 is connected with the external purifier, and the waste water at the bottom of the filter box 1 is discharged through the drain pipe 310 and can be recycled after being purified. The exhaust gas passes through the breathable plate 308, which is a waterproof and breathable material. After the gas passes through, the water is isolated to prevent the tail gas from being mixed with water vapor and affect the subsequent purification effect.

(2) When the tail gas produced by the furan resin casting adhesive is filtered and purified, the exhaust fan 501 is started to extract the tail gas through the air inlet, and the tail gas passes through the air outlet and enters through the exhaust pipe 502 to the diffuser cover 503, The air diffuser 503 disperses and expands the exhaust gas, and then the exhaust gas is pushed up by the subsequent exhaust gas and passes through the first filter layer 504. The first filter layer 504 initially filters the exhaust gas to remove most harmful substances, and then the exhaust gas passes through. After passing through the second filter layer 505, the second filter layer 505 filters out a small portion of harmful substances in the exhaust gas that have not been filtered out, and the exhaust gas that has been filtered twice passes through the purification layer 506, and the purification layer 506 can remove harmful gases in the exhaust gas. Adsorption conversion is carried out to make the exhaust gas meet the emission standard, and then the purified and filtered exhaust gas is guided through the shroud 507 and passed through the discharge pipe 508 for discharge.

It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is a relationship between these entities or operations. There is no such actual relationship or order between them. Furthermore, the term "comprises", "comprises" or any other variation thereof is intended to cover a non-exclusive inclusion such that a process, method, article or apparatus comprising a set of elements includes not only those elements, but also includes elements not expressly listed. other elements of or also include elements inherent in such a process, method, article, or device. Without further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article or apparatus comprising said element.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (7)

1. Tail gas processing apparatus is used in production of furan resin casting adhesive, including rose box (1), its characterized in that: the left side of the filter box (1) is communicated with an air inlet pipe (2), the inner walls of the left side and the right side of the filter box (1) are provided with filter mechanisms (3), the upper surface of the filter box (1) is fixedly provided with a purification box (4), and the inner bottom wall of the purification box (4) is provided with a purification mechanism (5);

the filter mechanism (3) comprises support plates (301) fixed on the inner walls of the left side and the right side of the filter box (1), a collection frame (302) is placed on the upper surface of each support plate (301), a filter opening (303) is formed in the inner bottom wall of the collection frame (302), a water filtering plate (304) is fixed inside the filter opening (303), a water guide pipe (305) is horizontally arranged between the inner walls of the left side and the right side of the filter box (1), an atomization spray pipe (306) is communicated with the outer surface of the water guide pipe (305), a water pipe (307) is communicated with the right side of the filter box (1), air permeable plates (308) are fixed between the inner walls of the four sides of the filter box (1), guide plates (309) are fixed between the inner walls of the four sides of the filter box (1), and a drain pipe (310) is communicated with the bottom of the right side of the filter box (1).

2. The exhaust gas treatment device for furan resin casting binder production according to claim 1, wherein: the upper surface of purifying box (4) is fixed with two support columns (6), two the upper surface of support column (6) is fixed with rain shade (7), the suction opening has been seted up to the interior roof of rose box (1).

3. The exhaust gas treatment device for furan resin casting binder production according to claim 1, wherein: the collecting frame (302) is a cuboid with a hollow interior and a missing top surface, and the left end of the water conveying pipe (307) penetrates through and extends to the interior of the filter box (1) and is communicated with the water guide pipe (305).

4. The exhaust gas treatment device for furan resin casting binder production according to claim 1, wherein: the number of the atomizing nozzles (306) is not less than two, and the atomizing nozzles are uniformly distributed on the outer surface of the water guide pipe (305).

5. The exhaust gas treatment device for furan resin casting binder production according to claim 1, wherein: the purification mechanism (5) comprises an exhaust fan (501) fixed on the inner bottom wall of the purification box (4), the air inlet end of the exhaust fan (501) is located inside the air suction opening, an exhaust pipe (502) is fixed on the air outlet end of the exhaust fan (501), a fan cover (503) is fixed between the inner walls of the four sides of the purification box (4), the top end of the exhaust pipe (502) is communicated with the lower surface of the fan cover (503), a first filter layer (504) is fixed between the inner walls of the four sides of the purification box (4), a second filter layer (505) is fixed between the inner walls of the four sides of the purification box (4) and above the first filter layer (504), a purification layer (506) is fixed between the inner walls of the four sides of the purification box (4) and above the second filter layer (505), and a flow guide cover (507) is fixed between the inner walls of the four sides of the purification box (4).

6. The exhaust gas treatment device for furan resin casting binder production according to claim 5, wherein: the inner top wall of the purification box (4) is provided with a discharge port, and a discharge pipe (508) is fixed in the discharge port.

7. The exhaust gas treatment device for furan resin casting binder production according to claim 5, wherein: the first filter layer (504) and the second filter layer (505) are both activated carbon layers, and the purification layer (506) is a rare earth filter layer.

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