CN218989623U - Continuous liquid-gas treatment deodorizing system - Google Patents

Abstract

The application provides a continuous liquid-gas treatment deodorizing system. The continuous liquid-gas treatment deodorizing system comprises: the treatment liquid padding module comprises a padding box and a treatment liquid padding module squeeze roller; and the first drying module comprises a box body, a roller, a hot air nozzle and a fan, wherein the roller is rotatably arranged in the box body, the peripheral wall of the roller is provided with air holes, the inner space of the roller is connected with the fan, the air holes are used for adsorbing blanks positioned on the outer side of the peripheral wall of the roller, the hot air nozzle can blow hot air to the peripheral wall of the roller, and the continuous liquid-air treatment deodorizing system can drive the blanks to be correspondingly treated in the material soaking box, the treatment liquid padding module extruding roller and the first drying module in sequence.

Description

Continuous liquid-gas treatment deodorizing system

Technical Field

The application belongs to the technical field of textile deodorization, and particularly relates to a continuous liquid-gas treatment deodorizing system.

Background

The polyurethane foaming material has excellent buffering performance and light weight performance, and is an important automotive interior material. Polyurethane foam materials are generally compounded under interior textile fabrics or other surface materials, and play important roles in sound insulation, heat insulation, buffering, protecting passengers in a vehicle, improving touch feeling and the like. But at the same time, the polyurethane foaming material is also an important source of Total Volatile Organic Compounds (TVOC), formaldehyde and PM2.5 in the vehicle. With the improvement of the global environmental awareness concept, if the polyurethane foaming material which leaves the factory is not specially treated, the odor of the directly compounded composite textile is very large, and the requirements of a host factory are hardly met.

The main polyurethane foaming materials and the deodorizing technology of the composite textiles of the main current technology are approximately as follows:

(1) The product can be stored for a long time to volatilize the pollutants such as smell and TVOC or be removed by mechanical extrusion accelerating air replacement deodorizing method. Patent CN106827365a discloses a method of mechanically compressing the sponge to remove the sponge odor, the whole process taking 2 to 3 days, which is inefficient and discontinuous, and has very limited treatment effect for slowly releasing large molecular weight odorous substances.

(2) The polyurethane foaming material or the composite product thereof is heated, volatile substances and odor in the polyurethane foaming material are promoted to volatilize rapidly in a heating mode, and the time for exposing, storing and deodorizing in the air is shortened. This is the current mainstream method. Many sponge compounding factories remove the smell after sponge compounding by high-temperature baking, but generally only can reduce the level by half, at most 1 level, and the quality cannot be stabilized because the quality is easily degraded again. Patent CN204894307U discloses a device for improving the smell of sponge and TVOC by heating, which takes a long time only by heating evaporation, considering that some substances have a large molecular weight, vaporization evaporation is very slow. The ingress and egress of these gases into and out of the polyurethane molecule is a bi-directional process with limited improvement.

(3) The taste is removed by chemical reaction of the relevant solution with the polyurethane foam. Patent CN109705394B analyzes in very detail the odor, TVOC, formaldehyde, various possible sources and influencing factors of API in polyurethane sponges, as well as the physicochemical properties and removal methods of these pollutants. The ethanol and water flow deodorizing method provided by the utility model has the advantages that the deodorizing effect is greatly improved by a treatment method combining chemical physical dry and wet combination of high-temperature hot air circulation drying, volatilization and escape replacement. However, the process needs to soak the sponge in a hot ethanol solution with a certain concentration for a long time, and negative pressure is used for sucking dry or spin-drying and dehydration, and the process is a periodic treatment process and is not beneficial to the treatment of coiled continuous textiles. Efficiency is also reduced.

The equipment involved in the current deodorizing process mainly comprises the following two types:

referring to fig. 1, the prior art includes a flat type deodorizing machine, which is a long-box mesh belt conveying type deodorizing device, and a mesh belt 11 is provided with a hot air circulation heating treatment device up and down. The left and right conveying chain needle belts in the drying room of the setting machine are changed into hollow front and rear conveying grid belts, and the blanks 12 are heated by hot air of the hot air nozzles 13 in the up-down direction of the grid belts to remove the odor when lying on the grid belts for conveying. The equipment heats the drying room very long (the length of the equipment varies from 20 meters to 40 meters, the total length of the machine varies from 36 meters to 50/60 meters, even longer, one of the working mode deodorizing equipment in the industry exceeds 100 meters), and the temperature in the drying room is as high as 140 ℃ to 160 ℃. The problems are that the treatment speed is low, the energy consumption is high, and the material such as polyurethane can be thermally decomposed and oxidized due to the excessively high Wen Duguo high temperature time, so that the material can become a new odor source. The deodorizing device is the most mainstream deodorizing device of the existing automobile interior fabric factories, most interior fabric factories adopt the deodorizing device, and as the requirements of the host factories on odor, TVOC and other pollutants of the interior fabric are stricter and stricter, drying rooms have longer trend. However, it is a simple physical deodorizing process, so the effect is not ideal. The equipment cost is high.

Referring to fig. 2, the prior art also includes a continuous deodorizing device, which is a standing oven. In the upper oven cavity there are upper and lower rows of rollers 21 through which the blanks 22 alternate. One or a plurality of hot air nozzles 23 are arranged above and below the roller respectively, so that hot air is blown up and down for circulation. The apparatus uses the space height and the heated material length of the drying room to offset the heated drying room length. Therefore, the whole machine has higher height but shorter length. Because the upper and lower hot air nozzles 23 are far from the blank 22 and the hot air flow direction is parallel to the surface of the blank 22, the hot air penetration effect is much worse than that of the long-cell lattice-transfer type deodorizing apparatus, and thus the deodorizing effect is poor. There are also automotive interior composite fabric manufacturers that use this type of equipment, but not as common as long box mesh belt conveyor type deodorizing equipment.

Disclosure of Invention

To ameliorate or solve at least one of the problems noted in the background, the present application provides a continuous liquid-vapor treatment odor removal system.

The application provides a continuous liquid gas treatment deodorization system for get rid of the taste of blank, this continuous liquid gas treatment deodorization system includes:

the treatment liquid padding module comprises a padding box and a treatment liquid padding module squeeze roller, wherein the padding box can be filled with treatment liquid, and the treatment liquid padding module squeeze roller can squeeze the blanks immersed with the treatment liquid; and

the first drying module comprises a box body, a roller, a hot air nozzle and a fan, wherein the roller is rotatably arranged in the box body, is of a hollow structure and is provided with a peripheral wall and an inner space, the peripheral wall of the roller is provided with air holes, the inner space of the roller is connected with the fan, the fan can enable the inner space of the roller to be a negative pressure space, the air holes can absorb blanks positioned on the outer side of the peripheral wall of the roller, the hot air nozzle can blow hot air to the peripheral wall of the roller,

the continuous liquid-gas treatment deodorizing system can drive the blank to be correspondingly treated in the dipping box, the treatment liquid padding module squeeze roller and the first drying module in sequence.

In at least one embodiment, the hot air nozzles are disposed in a circumferential array outside the peripheral wall of the drum.

In at least one embodiment, the distance X of the hot air nozzle from the peripheral wall of the drum satisfies: x is more than or equal to 2 cm and less than or equal to 4 cm.

In at least one embodiment, the first drying module further comprises a drying module wind shielding portion, the roller is rotatable relative to the drying module wind shielding portion,

the drying module wind shielding part is used for shielding the ventilation holes on the peripheral wall of the roller, so that gas is prevented from passing through the shielded ventilation holes.

In at least one embodiment, the drying module wind shielding part is arranged in the roller, the drying module wind shielding part is of a columnar structure, the drying module wind shielding part comprises a top plate and a connecting plate connected with the top plate,

on the section of the drying module wind shielding part perpendicular to the axial direction of the drying module wind shielding part, the section of the top plate is arc-shaped.

In at least one embodiment, the continuous liquid-gas treatment deodorizing system further comprises a second drying module, the second drying module has the same structure as the first drying module,

the continuous liquid-gas treatment deodorizing system can drive the blank to be correspondingly treated in the first drying module and the second drying module.

In at least one embodiment, the continuous liquid-gas treatment odor removal system further comprises a cleaning module comprising:

a cleaning tank in which cleaning liquid can be filled; and

a cleaning module dewatering roll capable of extruding the blank impregnated with the cleaning liquid,

the continuous liquid-gas treatment deodorizing system can drive the blank to be correspondingly treated in the dipping box, the treatment liquid padding module squeeze roller, the cleaning tank, the cleaning module dewatering roller and the first drying module in sequence.

In at least one embodiment, the continuous liquid vapor treatment odor removal system further comprises:

the cloth feeding and unreeling module is used for unreeling the blank;

an air cooling module for air cooling the blank; and

a cloth outlet winding module for winding the blank,

the continuous liquid-gas treatment deodorizing system can drive the blank to be sequentially subjected to corresponding treatment by the cloth feeding and unreeling module, the treatment liquid padding module, the first drying module, the air cooling module and the cloth discharging and reeling module.

The continuous liquid-gas treatment deodorizing system comprises a treatment liquid padding module and a drying module, wherein the blank can be dried by hot air after being continuously immersed in the treatment liquid, the treatment liquid in the blank is expanded at high temperature, a scouring effect of micro explosion is generated, and the deodorizing system is favorable for removing pollutants and further removing relevant odors.

Drawings

Fig. 1 shows a schematic structure of a flat-plate type deodorizing machine in the prior art.

Fig. 2 shows a schematic structure of a continuous deodorizing device according to the prior art.

Fig. 3 shows a schematic structural diagram of a continuous liquid-gas treatment deodorizing system according to an embodiment of the present application.

Fig. 4 shows a schematic diagram of the mechanism of the first drying module of the continuous liquid-gas treatment deodorizing system according to an embodiment of the present application.

Description of the reference numerals

11 mesh belt; 12 blanks; 13 a hot air nozzle;

21 rolls; 22 blanks; 23 hot air nozzles;

3, feeding cloth and unreeling the module; 31A character frame unreeling device; 32 double-roller unreeling device;

4, a treatment fluid padding module; 41 a dipping box; 411 dip tank transfer roll set; 412; a case cover; 42 treating liquid padding module squeeze rollers; 421 press roller group;

5, cleaning the module; 51, cleaning a groove; 511 a cleaning tank transfer roller set; 52 cleaning the module dewatering roll;

6, a first drying module; 61 a box body; 62 rollers; 63 hot air nozzles; 64 a drying module wind shielding part; 641 top plate; 642 connection plates;

7, a second drying module;

8, an air cooling module; 81 air-cooled box bodies; 82 air-cooled rollers; 83 an air cooling module air shielding part;

9, a cloth winding module is arranged; 91A word frame coiling mechanism; 92 double-roller winding device;

10 blanks;

100 speed detection and synchronous control device

Detailed Description

Exemplary embodiments of the present application are described below with reference to the accompanying drawings. It should be understood that these specific descriptions are merely illustrative of how one skilled in the art may practice the present application and are not intended to be exhaustive of all of the possible ways of practicing the present application nor to limit the scope of the present application.

Referring to fig. 3, embodiments of the present application provide a continuous liquid-gas treatment odor removal system and method. The continuous liquid-gas treatment deodorizing system can comprise a cloth feeding and unreeling module 3, a treatment liquid padding module 4, a cleaning module 5, a first drying module 6, a second drying module 7, an air cooling module 8 and a cloth discharging and reeling module 9.

The modules of the continuous liquid-vapor treatment deodorizing system may be arranged in rows with the direction of arrangement parallel to the direction of travel of the blanks 10. The axes of the rollers (described below) in each module are parallel and their axes are all perpendicular to the direction of travel of the blank 10. The blank 10 may be polyurethane sponge composite fabric, wall cloth, etc.

Next, each module is described in turn.

The feed and unwind module 3 may comprise a-frame unwind 31 and/or a two-roll unwind 32. The a-frame wound blanks 10 can be actively unwound by the a-frame unwinding device 31, and the normal wound blanks 10 can be actively unwound by the double-roller unwinding device 32. An operator can select a corresponding unreeling mode according to the type of the blank 10, for example, when the blank 10 is made of polyurethane sponge composite fabric, the blank can be actively unreeled through the A-shaped frame unreeler 31; when the blank 10 is a relatively thin, soft single layer of material, active unwinding can be performed by a twin roll unwind device 32. The a-frame unreeling device 31 and the double roller unreeling device 32 are existing devices, and are not described in detail in this application.

The process liquid padding module 4 may include a padding tank 41 and a process liquid padding module squeeze roll 42.

The inside of the dipping tank 41 may be filled with a treatment liquid such as ethanol, etc., which is used to dissolve out relevant contaminants in the blank 10, and the contaminants may be removed by replacement in a subsequent cleaning and drying step (described later), so that the taste of the blank 10 is removed.

A dip tank transfer roller set 411 may be disposed in the dip tank 41, and the dip tank transfer roller set 411 may include upper and lower layers of transfer rollers, and a liquid surface of the treatment liquid may be located between the upper and lower layers of transfer rollers, so that the blank 10 may pass through the liquid surface multiple times, and alternate between the treatment liquid and the air, that is, the blank 10 may be immersed in the treatment liquid and exposed to the air multiple times in the dip tank 41, and the blank 10 may be repeatedly rinsed.

Theoretically, the more times the blank 10 passes through the liquid surface, the longer the path, the longer the blank 10 is soaked, the cleaner the pollutant is washed, and the deodorizing effect is improved. However, at the same speed, the solution resistance and the friction resistance of the roller are increased, the blank 10 is more difficult to maintain the mechanical property, the required box volume is larger, the heat dissipation requirement is more, the treatment liquid contained in the box is more, the waste caused by the residual treatment liquid is more, and the cost is higher. Through comprehensive accounting, the blank 10 is used as one-time dipping procedure, and the application recommends two to four dipping procedures. The two-leaching procedure is shown in fig. 3.

A temperature control device and a cover 412 may be provided on top of the dip tank 41. The temperature control device can adjust the temperature of the treatment fluid. The cover 412 can perform a heat-insulating function, and can prevent the volatilization of the treatment liquid such as ethanol and the like and the pollution of the operation space.

The sidewall of the dip tank 41 may be provided with overflow ports to prevent the treatment fluid from being too high. A feeding pipe may be provided in the dipping tank 41, and the treating liquid may be added into the dipping tank 41 through the feeding pipe, and the feeding pipe may be a stainless steel pipe with holes. Further, the mouth of the filling tube may be directed towards the blank 10, increasing the flushing effect. An evacuation pipe and an evacuation valve may be provided at the bottom of the tank 41 to enable evacuation of the liquid in the tank 41. The material of the inner wall of the impregnation tank 41 may be stainless steel, for example, type 304 or 316 stainless steel.

The process fluid padding module squeeze rolls 42 are used to squeeze the billet 10. The extrusion roller 42 of the processing liquid padding module may include a pressing roller set 421 disposed opposite to each other, and the billet 10 is extruded by the pressing roller set 421 after being immersed by the processing liquid, so that the processing liquid can enter the billet 10, and the processing liquid can contact the pollutant particles in the billet 10.

The press roll set 421 may include rubber press rolls disposed up and down, and the treatment fluid padding module squeeze roll 42 may further include a driving system capable of controlling one of the press rolls of the press roll set 421 to move in a radial direction, where the driving system may change a radial distance between the two press rolls of the press roll set 421 to control a pressure of the rubber press rolls, so as to control an extrusion degree of the fluid, and also adjust a traveling speed of the blank 10.

The process fluid padding module 4 may also include a process fluid circulation system, which may include an overflow recovery filter vat, a feed vat. The feed tank is used for providing the processing liquid for the dipping tank 41, a heating device can be arranged in the feed tank, the temperature of the processing liquid in the feed tank can be controlled by the heating device, and the heat source can be high-temperature hot water, steam and the like. 1 to 3 layers of filter layers can be arranged in the overflow recovery filter vat, and waste liquid discharged by the leaching tank 41 can be discharged to the feeding vat after being filtered by the filter layers in the overflow recovery filter vat. Level gauges can be arranged in the feed tank and the overflow recovery filter tank, and the liquid level height is monitored.

A shield may be provided outside the treatment liquid padding module 4. The process liquid padding module 4 may have chemical materials such as ethanol exposed in the space, and the chemical materials may pollute the air to affect the health of operators. Therefore, a shield can be provided, and the space is made negative pressure by the exhaust fan to prevent diffusion. The pumped air can be connected into workshop air spraying adsorption treatment equipment through a pipeline, and is discharged after reaching the treatment standard, and the details are omitted.

The washing module 5 may include a washing tank 51, a washing module dehydration roll 52.

The cleaning tank 51 may be filled with a cleaning liquid such as water, and the cleaning tank 51 may be provided with a cleaning tank conveyance roller group 511. The cleaning tank transfer roller group 511 may include upper and lower transfer rollers, and the liquid level of the cleaning liquid may be located between the upper and lower transfer rollers so that the blank 10 can pass through the liquid level multiple times, alternating between water and air, i.e., the blank 10 can be immersed in the cleaning liquid and exposed to air multiple times in the cleaning tank 51, and the blank 10 can be repeatedly rinsed. The cleaning module dewatering roll 52 can extrude the billet 10, and the structures of the cleaning module dewatering roll 52 and the treatment liquid padding module extruding roll 42 can be the same, and are not repeated in the present application.

The blank 10 is washed by the washing module 5 before being dried, so that the treatment liquid can be diluted, and the dangerous situations such as explosion caused by substances such as ethanol and the like in the subsequent heating and drying steps are prevented.

Referring to fig. 4, the first drying module 6 includes a cabinet 61, a drum 62, a hot air nozzle 63, a drying module wind shielding part 64, a fan, and a heating system.

The roller 62 is rotatably provided in the case 61. The roller 62 may be hollow and have a peripheral wall and an inner space, one end of the axial direction of the roller 62 is closed, the other end is connected with a fan, and ventilation holes are formed in the peripheral wall of the roller 62.

The inner space of the drum 62 may be connected with a blower, which makes the inner space of the drum 62 a negative pressure space, so that the airing holes can generate an adsorption effect on the blank 10 positioned at the outer side of the peripheral wall of the drum 62,

the hot air nozzles 63 may be circumferentially arranged outside the peripheral wall of the drum 62 in an array, the hot air nozzles 63 face the peripheral wall of the drum 62, and when the blank 10 is located on the peripheral wall of the drum 62, the air blown by the hot air nozzles 63 can face the blank 10, so that the blank 10 is fixed on the peripheral wall of the drum 62 in an externally blowing and internally sucking manner. The roller 62 rotates and the blank 10 is driven to travel.

The distance X between the hot air nozzle 63 and the peripheral wall of the drum 62 can be up to 2 cm to 4 cm, which is far less than the distance range of the nozzle from the conveyor belt (e.g. 8 cm to 15 cm) in the long-box grid belt conveyor type deodorizing devices common in the prior art, with a negligible thickness of the blanks. As shown in fig. 1, in the prior art, the blowing direction of the hot air nozzle 13 is opposite, and the blank 12 cannot be closely attached to the mesh belt 11, so that a certain distance is required between the hot air nozzle 13 and the blank 12 in order to avoid the blank 12 contacting the hot air nozzle 13. Referring to fig. 3, the flow directions of the air in the present application do not collide (blow-out and suction-in), so that the blank 10 can be firmly fixed on the roller 62, the distance between the hot air nozzle 63 and the blank 10 can be relatively short, the hot air replacement efficiency is improved, and the waste of heat energy is avoided.

The larger the ratio of the open area of the ventilation holes formed in the peripheral wall of the roller 62 to the peripheral wall area of the roller 62 is, the smaller the resistance of hot air passing is, the better the negative pressure suction force generated by the fan is, the larger the air quantity penetrating through the blank 10 is, and the faster the pollutants are replaced. In the axial direction of the drum 62, the ventilation holes do not exceed the blank 10 (for example, when there are a plurality of ventilation holes in the axial direction, the ventilation holes at both ends are also covered by the blank 10), so as to avoid the phenomenon of hot air short circuit caused by the flow of wind in the ventilation holes not covered by the blank 10.

In the circumferential direction of the roller 62, the roller 62 has a peripheral wall that is not covered with the blank 10 in order to smoothly transfer the blank 10. In order to prevent the hot air short circuit phenomenon, a drying module shielding part 64 may be provided to shield the peripheral wall of the drum 62 not covered with the blanks 10. The drying module shutter 64 may be fixedly disposed and allow the drum 62 to rotate relative to the drying module shutter 64. The covered peripheral wall may be an inner peripheral wall or an outer peripheral wall of the drum 62, and for convenience of arrangement, the drying module air-shielding portion 64 may be disposed inside the drum 62 to cover the inner peripheral wall of the drum 62 and prevent air from passing through the corresponding air holes.

The drying module wind shielding part 64 may have a cylindrical structure including a top plate 641 and a connection plate 642 connected to the top plate 641. On a cross section of the drying module shielding part 64 perpendicular to an axial direction of the drying module shielding part 64, a cross section of the top plate 641 is arc-shaped, and a cross section shape of the drying module shielding part 64 may be a fan shape.

On the premise that the drying module air shielding portion 64 does not affect the rotation of the drum 62, the top plate 641 may be as close to the inner peripheral wall of the drum 62 as possible to cover a partial region of the drum 62, so that the drying module air shielding portion 64 can cover a partial ventilation hole. In the cross section of the roller 62 perpendicular to the axial direction thereof, the blank 10 covers the angular wrap angle corresponding to the arc of the area of the roller 62, and the wrap angle may be not less than 180 °, preferably not less than 270 °, to improve the use efficiency of the roller. The angle corresponding to the arc of the top plate 641 covering the area of the roller 62 may be equal to or slightly greater than the difference between 360 ° and the wrap angle, so that the ventilation holes on the roller 62 are completely covered, thereby avoiding the hot air short circuit phenomenon.

The diameter of the roller 62 may be 80 cm to 120 cm, preferably 100 cm. Too large a volume increases the equipment cost and the power requirements for the fan are also higher. If the volume is too small, it is inconvenient to install the air shielding part 64 of the drying module, and if the circumference of the drum 62 is too short, the amount of the hot air heating replacement pollutant is insufficient.

Further, the fan can comprise an exhaust hole, and a butterfly valve can be arranged at the exhaust hole for exhaust gas emission. The two sides of the box 61 may have slit passages for the blank 10 to enter and exit the box 61. The number of rollers 62 in the case 61 may be 2 to 6, preferably 4. An insulating layer can be arranged on the outer side of the box body 61 to avoid temperature loss.

The heating system may heat the wind. The heating mode can be selected from the natural gas direct combustion mode with the highest heat energy utilization rate which is most economical at present. A thermocouple can be installed in the fan and used for detecting the temperature of hot air.

Only one fan may be provided, and the air may be sucked out of the drum 62 and then fed into the hot air nozzle 63 to circulate the air path. Of course, two fans may be provided to suck the roller 62 and blow the hot air to the hot air nozzle 63, respectively.

Illustratively, the blank 10 is a sponge comprising cells and amorphous regions, and the treatment liquid in the treatment liquid padding module 4 comprises ethanol. After the ethanol padding treatment, the amorphous area and the foam cells of the sponge have ethanol. When the sponge is dried in the drying module, it is rapidly heated by, for example, a high temperature hot air of 100 ℃, while the boiling point of ethanol is 78 ℃, so that the ethanol can be rapidly vaporized, the volume is increased by thousand hundred times, and the pollutant particles are impacted. Moreover, the liquid water in the amorphous region of the sponge also evaporates rapidly and further impinges on the contaminant particles. The pollutant particles diffuse from the amorphous region to the cells and are displaced and removed by the hot air.

The drying module is not only a simple physical process that the sponge is heated to remove the pollutants by migration displacement, but also accelerates the removal process of diffusion displacement of the treatment fluid such as ethanol, and particularly, the components (ethanol and water) in the treatment fluid are rapidly evaporated in an amorphous area in the sponge to form a micro-explosion-like impact mixed reaction diffusion mechanism which is formed by rapid evaporation and vaporization volume rapid increase because of extremely rapid heating, so that the viscous pollutants which are difficult to diffuse and slow in vaporization and vaporization can be smoothly discharged.

The second drying module 7 may have the same structure as the first drying module 6. The secondary drying and deodorizing by the second drying module 7 can further heat, diffuse and migrate the trace amount of pollutants remained in the processed blank 10, especially for the low-ventilation material, and can ensure better deodorizing effect.

Of course, if the requirements for deodorizing effect are not high, only the first drying module 6 may be used. Generally, the odor level can be reduced substantially by about 1.5-2 levels after undergoing three-level removal by the process fluid padding module 4, the cleaning module 5, and the first drying module 6. Of course, the higher the original contaminant concentration in the sponge system, the higher the odor level that can be removed. The "odor rating" may be the odor rating caused by materials used in the interior of automobiles as measured according to the mass automobile company PV3900 odor test method. The term odor is understood to mean the tendency of a volatile component to release a perceived odor after storage of a material under certain temperature and climatic conditions over a defined period of time. The odor rating comprises a rating of 1-6.

When only the first drying module 6 is used, the temperature of hot air blown therefrom may be set at 140 to 160 ℃. If the first drying module 6 and the second drying module 7 are used for secondary drying and deodorizing, the temperature T1 of the hot air blown out by the first drying module 6 may be set to 90 ℃ to 110 ℃, and the temperature T2 of the hot air blown out by the second drying module 7 may be set to 110 ℃ to 130 ℃. The temperature setting in the secondary drying is milder, and the physical and chemical properties of the blank are better protected.

The polyurethane macromolecules in the sponge can undergo hydrolysis reaction under the moist high-temperature condition to generate odor monomers. The working temperature of the first drying module 6 can be relatively low, so that the hydrolysis reaction does not occur as much as possible; in the second drying module 7, the liquid such as water may be considered to be substantially removed, and the hydrolysis reaction may not occur, and thus, the operating temperature of the second drying module 7 may be set higher than that of the first drying module 6.

Of course, the working temperature of the first drying module 6 may be changed so that the working temperature of the second drying module 7 is higher than the working temperature of the first drying module.

In general, the second drying module 7 may reduce the odor level by about 0.5-1.

Illustratively, the air volume of the hot air nozzles in the first and second drying modules 6 and 7 may be set at 7 to 16 cubic meters/second, the air pressure of the blower may be set at 1000 to 2000 Pa, and the rated power may be 11 kw.

The air cooling module 8 is used for air-cooling and hot-drying the blank 10. The air cooling module 8 may include an air cooling box 81, an air cooling roller 82, an air cooling module air shielding portion 83, and a fan. The air cooling roller 82 is rotatably provided in the air cooling box 81. The air cooling roller 82 may be a hollow structure, and ventilation holes are formed in the peripheral wall of the air cooling roller 82. Negative pressure can be produced in the air-cooled roller 82 by a blower so that the blank 10 can be adsorbed on the air-cooled roller 82 through the ventilation holes.

On one hand, the dried foam cells of the high-temperature sponge also contain odor sources with certain concentration, and after the foam cells are naturally cooled, the odor sources are attached to the surfaces of the foam cells by the principle of similar adsorption of organic molecules, so that odor is remained. On the other hand, if the sponge is wound without being cooled, the sponge may be decomposed, and the decomposed small molecular substances become odor sources. Therefore, during the rotation of the blank 10 with the air-cooled roller 82, the contaminants of the blank 10 can be further replaced by the cool air, which not only cools the blank 10 well, but also removes the contaminants further.

Similarly, the air cooling module air shielding part 83 can be arranged in the air cooling roller 82, and the air cooling module air shielding part 83 is used for shielding ventilation holes of the air cooling roller 82, which are not covered by the blank 10, so that work of a fan is avoided, and suction force of the area to the blank 10 is eliminated, and the blank 10 can smoothly travel. Since the blank 10 is now dry and clean and relatively low temperature corrosion free, the material of the air cooled roller 82 may be a conventional steel sheet that is wound. The air-cooled cabinet 81 has a low need for tightness and its sealing standard may be low with respect to the sealing standard of the cabinet in the drying module.

Generally, the air cooling module 8 may reduce the odor level by about 0.2-0.5.

The cloth take-up module 9 may include an a-frame take-up 91 and/or a two-roll take-up 92. An operator can select a corresponding rolling mode according to the type of the blank 10, for example, when the blank 10 is made of polyurethane sponge composite fabric, the blank can be actively rolled by the A-shaped frame rolling device 91; when the blank 10 is a relatively thinner, softer single layer of material, the active take-up may be performed by the dual roll take-up 92. The a-frame winding device 91 and the double-roller winding device 92 are existing devices, and are not described in detail in the present application.

The continuous liquid-vapor treatment deodorizing system may further include a speed detection and synchronization control device 100. The speed detection and synchronization control device 100 may be disposed between the cloth feeding and unreeling module 3 and the treating fluid padding module 4, and the speed detection and synchronization control device 100 may also be disposed between the air cooling module 8 and the cloth discharging and reeling module 9, and further detect the travelling speed of the blank 10 at the position by detecting the tension of the blank 10, so as to provide a reference index for adjusting the unreeling speed of the cloth feeding and unreeling module 3 or the speed of the blank 10 at other positions of the system, for example, so as to control the blank 10 to travel synchronously at each position of the system. The speed detecting and synchronous controlling device 100 is an existing device, and will not be described in detail in this application.

The continuous liquid-gas treatment deodorizing system may further include a cloth storage tank, for example, a U-shaped cloth storage tank. The cloth storage groove can be arranged at the cloth feeding and unreeling module 3 and the cloth discharging and reeling module 9.

The continuous liquid-gas treatment deodorizing method provided by the application is applied to the continuous liquid-gas treatment deodorizing system. The continuous liquid-gas treatment deodorizing method can comprise the following steps:

immersing the billet 10 in the treatment liquid, extruding the billet 10, and dehydrating the billet 10;

immersing the blank 10 in a cleaning solution, and extruding the blank 10 to dehydrate the blank 10;

drying the blank 10 by hot air; and

the blank 10 is air cooled.

Of course, the deodorizing step may further include unreeling, reeling, and the like, which are not described in detail herein.

It will be appreciated that in normal operation, the travel speed of the blank 10 is the same at each location and may be 10 meters/minute. Compared with the technical proposal of soaking the sponge in a hot ethanol solution with a certain concentration for a long time (for example, 20 minutes to 60 minutes) in the prior art, the blank treatment speed is faster, the treatment solution in the treatment solution padding module 4 is not as fast as the treatment solution is used for diffusing and transporting pollutants, but the treatment solution is immersed into the blank 10, and the pollutants are replaced by hot air due to vaporization of the treatment solution in the blank 10 when the high-temperature drying step is carried out subsequently. In the deodorizing principle, the method has obvious innovation, so that the blank treatment efficiency is improved.

In addition, the long box grid belt conveying type deodorizing equipment in the prior art has the defects that the factory building is often required to be several tens of meters, the occupied space is large, more fans are required, and the heat energy loss is serious. The design of this application's hot-blast outer blowing of roller internal suction has greatly saved the space, and the nozzle is nearer to the blank, and the temperature is balanced in the box that the roller was located, makes the blank each position in the box heat with the temperature, and treatment fluid and pollution source are heated and evaporated, form the scour removal effect of "micro-explosion", and the deodorization is effectual.

The aforementioned ranges are used herein to refer to a through B, and include A, B. For example, the temperature may be set at 140 ℃ to 160 ℃, with a setting a representing its temperature in a range that satisfies: a is more than or equal to 140 ℃ and less than or equal to 160 ℃.

While the foregoing is directed to the preferred embodiments of the present application, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the present application, such changes and modifications are to be considered as within the scope of the present application.

Claims (8)

1. A continuous liquid-gas treatment deodorizing system for removing the smell of a blank, comprising:

the treatment liquid padding module comprises a padding box and a treatment liquid padding module squeeze roller, wherein the padding box can be filled with treatment liquid, and the treatment liquid padding module squeeze roller can squeeze the blanks immersed with the treatment liquid; and

the first drying module comprises a box body, a roller, a hot air nozzle and a fan, wherein the roller is rotatably arranged in the box body, is of a hollow structure and is provided with a peripheral wall and an inner space, the peripheral wall of the roller is provided with air holes, the inner space of the roller is connected with the fan, the fan can enable the inner space of the roller to be a negative pressure space, the air holes can absorb blanks positioned on the outer side of the peripheral wall of the roller, the hot air nozzle can blow hot air to the peripheral wall of the roller,

the continuous liquid-gas treatment deodorizing system can drive the blank to be correspondingly treated in the dipping box, the treatment liquid padding module squeeze roller and the first drying module in sequence.

2. The continuous liquid-vapor treatment deodorizing system according to claim 1, wherein said hot air nozzles are disposed in a circumferential array outside said peripheral wall of said drum.

3. The continuous liquid-gas treatment deodorizing system according to claim 2, characterized in that the distance X of the hot air nozzle from the peripheral wall of the drum satisfies: x is more than or equal to 2 cm and less than or equal to 4 cm.

4. The continuous liquid vapor treatment odor elimination system according to claim 1, wherein said first drying module further comprises a drying module air shield, said roller is rotatable relative to said drying module air shield,

the drying module wind shielding part is used for shielding the ventilation holes on the peripheral wall of the roller, so that gas is prevented from passing through the shielded ventilation holes.

5. The continuous liquid-gas treatment deodorizing system according to claim 4, wherein the drying module wind shielding part is disposed inside the roller, the drying module wind shielding part has a columnar structure, the drying module wind shielding part comprises a top plate and a connecting plate connected to the top plate,

on the section of the drying module wind shielding part perpendicular to the axial direction of the drying module wind shielding part, the section of the top plate is arc-shaped.

6. The continuous liquid and gas treatment deodorizing system according to claim 1, further comprising a second drying module having the same structure as the first drying module,

the continuous liquid-gas treatment deodorizing system can drive the blank to be correspondingly treated in the first drying module and the second drying module.

7. The continuous liquid vapor treatment odor removal system of claim 1, further comprising a cleaning module comprising:

a cleaning tank in which cleaning liquid can be filled; and

a cleaning module dewatering roll capable of extruding the blank impregnated with the cleaning liquid,

the continuous liquid-gas treatment deodorizing system can drive the blank to be correspondingly treated in the dipping box, the treatment liquid padding module squeeze roller, the cleaning tank, the cleaning module dewatering roller and the first drying module in sequence.

8. The continuous liquid vapor treatment odor removal system of claim 1, further comprising:

the cloth feeding and unreeling module is used for unreeling the blank;

an air cooling module for air cooling the blank; and

a cloth outlet winding module for winding the blank,

the continuous liquid-gas treatment deodorizing system can drive the blank to be sequentially subjected to corresponding treatment by the cloth feeding and unreeling module, the treatment liquid padding module, the first drying module, the air cooling module and the cloth discharging and reeling module.

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