JP2007268462A - Manufacturing method of honeycomb-shaped element - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a honeycomb-shaped element used for a moisture absorption filter, a deodorization filter, etc., in which materials of the moisture absorbent and absorbing agent are supported uniformly inside a honeycomb structural body, and an amount of the moisture absorbent and absorbing agent supported is stable even when the body is sliced to pluralize, by which the element is stable in quality. <P>SOLUTION: The periphery of the honeycomb structural body 3 is wrapped with a protection plate 4, and the top surface 5 of the protection plate and the lower end surface 6 of the protection plate project from an air flow top surface 7 and an air flow lower end surface 8 of the honeycomb structural body 3 to be held with a distance 10 in a state of floating in the air. A porous absorbent is used as a material. A honeycomb structural body 20 with a protection tool is impregnated 22 in a slurry 21 in which the porous absorbent and an inorganic binder are dispersed, and pulled out, and an excess liquid 24 in a honeycomb cell is blown down with a ventilation by a blower 23. A top-and-down surface of the honeycomb structural body 20 with the protection tool is reversed, and subjected to a through-circulation drying, by which the honeycomb-shaped element supporting the material uniformly can be obtained. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a method for producing an adsorption filter for moisture and organic gas and a catalyst carrier having a honeycomb structure.

  Conventionally, this type of honeycomb-shaped element is obtained by processing a paper in which ceramic fibers or glass fibers and organic fibers as components and minerals such as mountain bark as a base paper are processed into a honeycomb shape and firing the honeycomb body. An inorganic honeycomb carrier is known (for example, see Patent Document 1).

  Hereinafter, the honeycomb element will be described with reference to FIGS. 13 and 14.

  As shown in FIG. 13, the ceramic paper 101 is made of ceramic fibers, pulp, mountain bark, organic and inorganic binders, and is bonded to the ceramic paper 102 processed into a wave shape by an organic and inorganic mixed adhesive 103. A single wave molded body 104 is formed. As shown in FIG. 14, the honeycomb structure 105 is obtained by laminating the single wave molded bodies of FIG. 13.

  Also, in this type of honeycomb element, a sheet made of ceramic fibers, pulp, organic or inorganic binder is formed into a honeycomb shape, impregnated with colloidal silica or ethyl silicate, and then the silicon compound is added to silica gel. It is known that a catalyst carrier is obtained as a result of burning and removing organic matter in the sheet by converting and then firing (see, for example, Patent Document 2).

Further, it is known that a material such as an adsorbent and a dispersion liquid such as an inorganic binder are impregnated, and thereafter, organic substances in the sheet are burned and removed in the same manner as the above-described element to obtain an adsorbing element.
Japanese Patent Laid-Open No. 5-64745 (FIGS. 13 and 14) Japanese Patent Laid-Open No. 4-18896

  Conventionally, a base paper mixed with such organic fibers and inorganic fibers is used as a flat sheet with one flat sheet, and a corrugated sheet with the other formed into a corrugated sheet. When a material such as an adsorbent or a catalyst is supported on a honeycomb structure obtained by laminating and forming a one-wave molded body (referred to as corrugating) and laminating the honeycomb structure, the adsorbent or catalyst dispersion Or the dispersion is poured into the cells of the honeycomb structure, and then ventilated by a blower or the like to blow off excess liquid and then dried by ventilation.

  However, at this time, the dispersion liquid adheres to the net on which the honeycomb structure is placed during ventilation and the lower end surface portion of the honeycomb structure without being blown off due to surface tension, and the liquid adheres more to the lower end surface of the honeycomb than other portions. As a result, the amount of adsorbent and catalyst supported in the honeycomb structure becomes uneven.

  If uneven loading occurs in the honeycomb structure, when slicing the honeycomb structure to create a plurality of honeycomb elements, etc., filters with different amounts of adsorbents and catalysts can be produced. Variation will be made. In addition, the material cost increases. In a worse case, the carrying of the material becomes uneven, and many adhering cells are clogged and dried, and ventilation itself may be impossible.

  Also, in the corrugation process when creating a honeycomb structure, it is desirable that the corrugated sheet and the flat sheet are bonded at both ends, but in actuality both ends meander due to variations in paper thickness and the like. Be joined. Therefore, in the honeycomb structure in which it is laminated, the meandering portion of the sheet is seen at the end, and if a heavy honeycomb is placed, the sheet bends and fills the cell, and it is easy to apply liquid tension, The cell is more likely to be clogged.

  As a means for solving the problem, there is a method of increasing the wind speed and air volume of the ventilation. However, if the wind is too strong, the honeycomb structure that has lost its strength due to being wet by the liquid may not be able to withstand and may be deformed. As a countermeasure for meandering, there is a method of polishing the end face part and aligning the faces, but it is very time-consuming, and the part that is not meandering is polished, so that the material is wasted.

  In supporting the honeycomb structure, since the base paper swells by absorbing water and changes its size or deforms, the corrugated material is adhered with an adhesive. Therefore, there is a problem that the material cannot be supported on the adhesive portion and the surface area in the cells of the honeycomb structure cannot be fully utilized.

  Therefore, when impregnating and drying the material liquid when supporting the adsorbent and catalyst on the honeycomb structure, there is no development of a construction method in which excessive liquid does not adhere to the end face and the material is uniformly supported in the honeycomb. It has been demanded.

  The present invention solves such a conventional problem, and in the process of impregnating and drying the honeycomb with a liquid of the material, there is no unevenness in supporting, and the material can be uniformly adhered in the cell. It is an object of the present invention to provide a method for manufacturing a honeycomb-shaped element that can reduce the number of steps without polishing the end face even if the two sheets meander, and without wasting materials compared to the conventional method. .

  In order to achieve the above object, the honeycomb element manufacturing method of the present invention forms a single-wave molded body by corrugating and then disperses the material in the honeycomb structure obtained by stacking the single-wave molded bodies. A method of impregnating the liquid by a method such as impregnation, and then ventilating the honeycomb structure with the ventilation end face kept floating in the air, and blowing off the liquid not carried on the honeycomb structure. is there.

  The dispersion blown off by this method is such that the tension of the liquid does not work at the ventilation end face of the honeycomb structure as compared with the case where the honeycomb is placed directly on the net or the like and the mesh and the ventilation end face of the honeycomb are in contact with each other. Since it is difficult for liquid to adhere to the vent end face, clogging of the end face is less likely to occur.

  Further, as a method for manufacturing a honeycomb-shaped element of the present invention, in order to achieve the above object, the protective device is wider than the outer peripheral surface of the honeycomb structure and the end surface of the protective device protrudes from the ventilation end surface of the honeycomb structure. The honeycomb structure with protective equipment is infiltrated into the honeycomb structure with protective equipment by a method such as impregnation into the dispersion liquid of the material, and then the end face of the protective equipment protrudes from the ventilation end face of the honeycomb structural body. Therefore, it is a method in which the liquid that has not been carried on the honeycomb structure is blown off by passing the air through the honeycomb structure while floating in the air.

  Further, as the shape of the protector of the honeycomb structure of the present invention, the honeycomb structure is a cylindrical shape formed by winding and laminating a single wave molded body, and the protector is bent on a cylinder with a metal plate. By processing and making the length in the height direction of the cylinder longer than that of the above-mentioned honeycomb structure ventilation end surface, and winding and fixing it around the outer periphery of the honeycomb structure, the ventilation end surface of the honeycomb structure Can be allowed to float in the air so that they do not come into contact with other parts during aeration after impregnating the material dispersion.

  In addition, the shape of the protective device of the present invention is such that the outer peripheral distance of the protective plate can be adjusted so that even when the outer peripheral distance of the cylindrical column of the honeycomb structure changes when winding around the outer periphery, the distance is constant. Install fasteners to keep Then, the ventilation end surface of the honeycomb structure is made of a material by making the length in the height direction of the cylinder longer than that of the ventilation end surface of the honeycomb structure and winding and fixing the outer periphery of the honeycomb structure. The liquid dispersion can be floated in the air so as not to come into contact with other parts during aeration after impregnation.

  Moreover, as a shape of the protector of the present invention, the outer periphery of the honeycomb structure is fixed using a protector having a curved surface and a flat surface that are divided into a plurality along the outer periphery. Then, the length of the protective device in the height direction is made longer than the ventilation end surface of the honeycomb structure, and the honeycomb structure body is in contact with and fixed to the outer peripheral portion of the honeycomb structure, thereby the ventilation end surface of the honeycomb structure. Can be allowed to float in the air so that they do not come into contact with other parts during aeration after impregnating the material dispersion.

  The dispersion liquid blown off by the above method is more effective at the ventilation end face of the honeycomb structure than when the honeycomb is placed directly on the mesh etc. and the mesh and the ventilation end face of the honeycomb are in contact with each other. In addition, since it is difficult for the liquid to adhere to the ventilation end surface, clogging of the end surface is unlikely to occur, and even support to the vicinity of the end surface of the honeycomb structure can be achieved.

  Further, since the outer periphery is fixed by the protector, even if the honeycomb structure sucks water and swells, the honeycomb structure does not swell greatly and is not easily deformed, so that a stable shape can be obtained.

  In addition, as a shape of the protector of the present invention, a protrusion is provided on the inner periphery of the protector covering the outer periphery of the honeycomb structure, and the honeycomb structure is placed on the protrusion. In this way, the honeycomb structure can be easily fixed in a state where it floats on the protector, and the position of the honeycomb structure is shifted during the process, and the ventilation end surface of the honeycomb structure protrudes beyond the end surface of the protector. Things will disappear.

  In addition, as the protective device of the present invention, a device that has been processed into a surface on which the material is difficult to adhere is used. In particular, by coating the portion to be immersed in the dispersion liquid of the material together with the honeycomb structure, it becomes easy to wash off even if the material adheres to the protective equipment. In particular, when the material to be supported on the honeycomb structure is hydrophilic, a process for forming a hydrophobic surface is performed. In addition, when the material to be supported on the honeycomb structure is hydrophobic, the surface of the protective device is processed to be hydrophilic. Alternatively, the surface is processed with a fluororesin. Thereby, it becomes easy to wash | clean a protector, the process for wash | cleaning a protector can be decreased, and manufacturing cost can be reduced. Moreover, since the material adhering to the protective equipment is reduced, the material cost can be reduced.

  Further, as a method for manufacturing a honeycomb-shaped element of the present invention, an inorganic binder containing at least one of colloidal silica, sodium silicate, and lithium silicate is used as a dispersion liquid of a material to be supported on the honeycomb structure. By burning off the organic matter, an inorganic honeycomb element having high heat resistance can be obtained and used as a catalyst carrier or the like.

  Further, as a method for manufacturing a honeycomb-shaped element of the present invention, an adsorbent containing at least one of zeolite, silica gel, activated carbon, alumina oxide, and silica alumina in a dispersion liquid of a material supported on the honeycomb structure and an inorganic binder are used. A honeycomb adsorbent is obtained by supporting an adsorbent on the honeycomb structure using an inorganic binder as an adhesive. In addition, when the adsorbent can be produced at a temperature at which it does not change, a honeycomb adsorbent having only inorganic components can be obtained by firing. Further, when the outer periphery is impregnated and supported using a protector, it is not necessary to attach a wasteful adsorbent or other material to the outer peripheral portion of the honeycomb structure, so that the material cost can be reduced.

  Further, as a method for manufacturing a honeycomb-shaped element of the present invention, the honeycomb structure is impregnated with a dispersion liquid of the material, pulled up, and then the air-permeable end face of the honeycomb structure is floated to allow the honeycomb structure to be ventilated. Ventilation is conducted from above the end face to blow off the liquid that has not penetrated or adhered to the honeycomb structure. After this step, the upper and lower surfaces of the honeycomb structure are turned over, and then ventilated from above and dried. In this manufacturing method, this reversal operation is repeated one or more times.

  By this means, it is possible to prevent the liquid remaining on the surface of the honeycomb structure from dripping down to the lower end surface, thereby making it possible to more uniformly distribute the material with respect to the thickness direction of the ventilation direction of the honeycomb structure. It can be carried, and the carrying unevenness of the material can be reduced.

  Further, as a method for manufacturing a honeycomb-shaped element of the present invention, from the above impregnation, in the process of ventilating the honeycomb structure with the ventilation end face in a floating state, and reversing and ventilating and drying again, the process from this impregnation to drying is performed. The process is performed multiple times, and the second impregnation is performed by reversing the vertical direction of the honeycomb structure and reversing the upper and lower surfaces of the honeycomb structure after the impregnation with the process of pulling up from the first impregnation and venting from above Then, it is a manufacturing method which performs the process of ventilating and drying.

  By this means more material can be supported than a single impregnation. Further, it is possible to reduce the unevenness of the carrying amount that could not be compensated at the first time.

  In addition, it is desirable to determine the vertical direction of the ventilation end face in each manufacturing condition after the third time, but after impregnation and pulling it up, air is passed from above the ventilation end face of the honeycomb structure to obtain the honeycomb structure. After the liquid that has not permeated or adhered is blown off, it is desirable to repeat the operation of inverting the upper and lower surfaces of the honeycomb structure and then ventilating from above and drying it one or more times.

  In addition, as a method for manufacturing a honeycomb-shaped element of the present invention, the honeycomb structure is impregnated with a dispersion liquid of the material, lifted, and then the ventilation end surface of the honeycomb structure is floated in a state where the ventilation end surface of the honeycomb structure is floated. Ventilate from above, blow off the liquid that has not penetrated or adhered to the honeycomb structure, then invert the top and bottom surfaces of the honeycomb structure, then ventilate from above and dry into the honeycomb structure in the process of drying Or the wind speed of the wind which blows off the liquid which did not adhere is a manufacturing method quicker than the wind of the process of drying after that.

  By this means, when blowing off the liquid that could not permeate or adhere, use the wind speed that does not remain on the ventilation end face of the honeycomb structure even with the tension of the liquid. As a result, the movement of the liquid adhering to the honeycomb structure during the drying can be reduced, and the liquid can be prevented from drying rapidly during the drying to cause cracks in the material and a decrease in strength.

  Further, as a method for manufacturing a honeycomb-shaped element of the present invention, even when a honeycomb structure is processed as disclosed in Japanese Patent Application Laid-Open No. 2005-280168, which is not bonded by an adhesive when winding a corrugate, the outer periphery is used as a protective device. Therefore, the corrugated single-wave molded body is not peeled off and deformed, and a honeycomb structure carrying a material such as an adsorbent or a catalyst on the corrugated winding portion can be obtained. Therefore, more adsorbents and catalysts can be supported as compared with the case where the single-wave molded bodies are bonded and laminated.

  In addition, the method for manufacturing a honeycomb-shaped element of the present invention is a manufacturing method for slicing a honeycomb structure obtained by the manufacturing method described above. The obtained honeycomb structure has a stable amount of material, so that there is little difference between elements and a stable quality can be obtained.

  According to the present invention, the material can be uniformly supported at a position in the honeycomb structure that has penetrated into the dispersion liquid of the material by floating the ventilation end surface without contacting other portions, and the honeycomb structure can be uniformly supported. It is possible to provide a manufacturing method capable of obtaining a honeycomb-shaped element in which a material does not adhere to a ventilation end surface of a body and is not clogged.

  In addition, the outer periphery is covered with a protective device and fixed, and the ventilation end surface is floated without contacting other parts, so that the material carrying unevenness does not occur at the position in the honeycomb structure infiltrated with the material dispersion, and the honeycomb structure There is no material adhering to the ventilation end face of the body and clogging. Besides that, it is not necessary to use an adhesive for laminating corrugated single-wave molded bodies to fix the outer periphery, It is possible to provide a manufacturing method capable of obtaining a honeycomb-shaped element that can carry a larger amount of a material such as a catalyst and that can reduce the swelling and deformation of the honeycomb structure.

  In addition, the protruding portion is installed on the inner peripheral portion of the protective device of the present invention so that the honeycomb structure is placed on the protruding portion. By doing so, the honeycomb structure can be easily fixed in a floating state, and can be easily fixed in the floating state, thereby reducing the number of steps.

  In addition, as the protective device of the present invention, a device that has been processed into a surface on which the material is difficult to adhere is used. For example, the protective device surface is coated with a fluororesin. Thereby, it becomes easy to wash | clean a protector, the process for wash | cleaning a protector can be decreased, and manufacturing cost can be reduced. Moreover, since the material adhering to the protective equipment is reduced, the material cost can be reduced.

  Further, an inorganic binder containing at least one of colloidal silica, sodium silicate, and lithium silicate is used in the dispersion liquid of the material supported on the honeycomb structure of the present invention. After supporting, firing is performed, and the organic matter is burned away. A highly heat-resistant honeycomb structure made only of the components can be obtained.

  In addition, the dispersion liquid of the material supported on the honeycomb structure of the present invention uses an inorganic binder and an adsorbent containing at least one of zeolite, silica gel, activated carbon, alumina oxide and silica alumina, and bonds the inorganic binder to the honeycomb structure. A honeycomb adsorbent can be obtained by supporting an adsorbent as an agent. In addition, when the adsorbent can be produced at a temperature at which it does not change, a honeycomb adsorbent having only inorganic components can be obtained by firing.

  Furthermore, when the material is supported on the outer periphery using a protector, it is not necessary to attach a material such as a wasteful adsorbent to the outer peripheral portion of the honeycomb structure, so that the material cost can be reduced.

  Further, as a method for supporting the honeycomb structure using the liquid impregnation and ventilation of the present invention, the honeycomb structure is impregnated with the dispersion liquid of the material, and after pulling it up, the ventilation end surface of the honeycomb structure is formed. While floating, air is passed from above the ventilation end surface of the honeycomb structure to blow off the liquid that has not penetrated or adhered to the honeycomb structure. After this step, the upper and lower surfaces of the honeycomb structure are turned over, and then the ventilation end surface of the honeycomb structure is floated and air is passed from above to dry. By using this method of repeating the reversal operation one or more times, the material can be uniformly supported with respect to the thickness direction in the ventilation direction of the honeycomb structure, and the unevenness of the material can be reduced. When slicing a honeycomb structure to obtain a plurality of honeycomb-like elements, a honeycomb-like element with little variation in the amount of the material carried can be obtained.

  In addition, as a method for supporting the honeycomb structure using the liquid impregnation and ventilation of the material of the present invention, when the above impregnation method is performed a plurality of times, the second time, when impregnating, when the first impregnation is lifted By carrying out the process of reversing the vertical direction of the honeycomb structure and then reversing the upper and lower surfaces of the honeycomb structure and ventilating and drying, the material can be more uniformly supported on the honeycomb structure.

  In addition, after impregnating the liquid of the material of the honeycomb structure of the present invention into the liquid and pulling it up, air is passed from above the ventilation end face while the ventilation end face of the honeycomb structure is floated, and the liquid that has not penetrated or adhered to the honeycomb structure is removed. Blow off, then turn the upper and lower surfaces of the honeycomb structure upside down, and then vent the liquid from the porous structure that has not permeated or adhered to the honeycomb structure in the drying process, with the ventilation end face of the honeycomb structure left floating By making the wind speed faster than the wind of the subsequent drying process, while blowing off excess liquid firmly, drying prevents the liquid from drying rapidly and cracking the material and reducing its strength. I can do it.

  In addition, as a method for manufacturing a honeycomb-shaped element according to the present invention, when laminating a single-wave formed body of a honeycomb structure, it is possible to retain the shape by fixing the outer periphery with a protective device without using an adhesive. Therefore, since a material such as an adsorbent can be supported on a portion that could not be supported by the conventional adhesive, the surface area of the resulting honeycomb-shaped element can be used effectively, and the capacity can be improved.

  Further, as a method for manufacturing the honeycomb-shaped element of the present invention, by slicing the element obtained in the drying process from the penetration of the material of the honeycomb structure, to create a honeycomb-shaped element of a desired thickness, Compared to impregnating each sliced honeycomb structure in order to stabilize the amount of material supported, the number of impregnation steps can be reduced, so the number of man-hours can be greatly reduced, and the amount of material supported is stable. Yes.

  According to the first aspect of the present invention, one flat sheet is formed as a flat sheet, and the other is formed into a corrugated sheet that is formed into a corrugated shape. After forming the body, the honeycomb structure obtained by laminating the one-wave molded body is infiltrated with a dispersion of a material such as an adsorbent, a catalyst, and an inorganic binder, and then the ventilation end surface of the honeycomb structure floats in the air. In the honeycomb structure that has penetrated into the dispersion liquid of the material such as the adsorbent, the catalyst, and the inorganic binder, the material is not unevenly supported and can be uniformly supported by the manufacturing method in which the material is dried while being maintained. In addition, it is possible to manufacture a honeycomb element that does not clog due to material adhering to the ventilation end surface of the honeycomb structure.

  Further, in the invention according to claim 2 of the present invention, as a method of floating the ventilation end face of the honeycomb structure, a protective device larger than the outer peripheral face of the honeycomb structure and at least longer than the length in the ventilation direction is in a state where the ventilation end face protrudes. In this manner, the honeycomb structure is fixed. Then, the honeycomb structure is impregnated with a dispersion of a material such as an adsorbent, a catalyst, or an inorganic binder, and then the adsorbent or the adsorbent is dried by a manufacturing method in which the ventilation end surface of the honeycomb structure is kept floating in the air. Non-uniform loading of the material does not occur at the position in the honeycomb structure that has penetrated into the dispersion liquid of the material such as catalyst and inorganic binder, and the material can be uniformly loaded, and the material adheres to the ventilation end surface of the honeycomb structure and becomes clogged. Honeycomb-like elements can be produced.

  In the invention according to claim 3 of the present invention, the honeycomb structure is formed into a cylindrical shape by winding and laminating the single-wave molded body, and the protective device is formed by winding a metal plate into a cylindrical shape. Process. Using this as a protective device, the air-permeable end face of the honeycomb structure is fixed while being floated, impregnated by the above method, and dried by performing, for example, ventilation. According to this manufacturing method, the material can be uniformly supported at each position in the honeycomb structure impregnated with a dispersion of a material such as an adsorbent, a catalyst, and an inorganic binder, and the honeycomb structure can be uniformly supported. A honeycomb-like element can be manufactured in which no material adheres to the air-permeable end face and is clogged.

  The invention according to claim 4 of the present invention is performed as follows as means for adjusting the outer circumference of the protective equipment and making the circumferential length constant. A part of the protective equipment processed by attaching a winding mold to the above cylindrical shape is processed so that the length in the circumferential direction is one or more rounds in the cylindrical shape. If this length is too short, when the circumference of the honeycomb becomes large, the length of the winding plate of the protective device is insufficient, and it becomes impossible to protect a part of the outer periphery. Since the force to spread outside the plate and the thickness of the plate itself get in the way, a gap with the honeycomb structure is generated, making it difficult to fix the metal plate. It is desirable that the length be about 1/12 to 1/6 of the target circumference. In addition, after determining the length in the circumferential direction, it is fixed using screws, bolts and stoppers so that the length position can be fixed. Using this as a protective device, the air-permeable end face of the honeycomb structure is fixed while being floated, impregnated by the above method, and dried by performing, for example, ventilation. By this manufacturing method, the material is not unevenly supported at each position in the honeycomb structure impregnated with a dispersion of a material such as an adsorbent, a catalyst, or an inorganic binder, and the material can be uniformly supported, and the ventilation end surface of the honeycomb structure It is possible to manufacture a honeycomb element that does not clog due to material adhering thereto.

  Further, swelling when the honeycomb structure is impregnated with a dispersion of an adsorbent, a catalyst, or an inorganic binder can be prevented.

  In addition, a honeycomb element in which the swelling and deformation of the honeycomb structure is reduced can be manufactured.

  In the invention according to claim 5 of the present invention, the outer periphery of the honeycomb structure is ventilated by using a protective device having a plurality of curved surfaces and / or flat surfaces so as to cover the outer periphery of the honeycomb structure. Secure with the end face floating in the air. Using this as a protective device, the air-permeable end face of the honeycomb structure is fixed while being floated, impregnated by the above method, and dried by performing, for example, ventilation. This manufacturing method does not cause uneven support of the material at each position in the honeycomb structure impregnated with a dispersion of a material such as an adsorbent, a catalyst, or an inorganic binder, and the material adheres to the ventilation end surface of the honeycomb structure. Thus, a honeycomb-shaped element that is not clogged can be manufactured.

  In addition, by doing so, it is possible to cope with various shapes of the honeycomb structure such as an elliptical shape, a track shape, a rectangular shape, and a square shape by making the shape of the protective device as such.

  In addition, a honeycomb structure having a stable shape can be obtained by making the shape of the protective equipment constant. Note that if the shape of the honeycomb structure and the protective device are greatly different, the stress in fixing with the protective device causes the honeycomb structure to be deformed or crushed, resulting in an increase in pressure loss of the honeycomb or the honeycomb structure. Since uneven pressure loss occurs in the body, it is desirable to process the honeycomb structure in advance to the shape of the protective equipment.

  In the invention according to claim 6 of the present invention, a protrusion is provided on a surface of the protective device on which the honeycomb structure is fixed to support the end surface of the honeycomb structure, so that the end surface of the protective device is made of the honeycomb structure. Keep protruding from the end face. Thereby, the end face of the honeycomb structure can be reliably floated in the air. As for the protrusions, even when the honeycomb structure is heavy including the liquid of the material, the position does not shift, and if the support is small, the cells are crushed by the weight, so the cells are not crushed by the weight. A certain size and number are required. In addition, as a protrusion, it is desirable that a part of the protective device is embossed to have a convex portion inside the protective device, or the convex portion is welded to the inside of the protective device by welding or the like.

  In the invention according to claim 7 of the present invention, the surface or part of the protective device is processed into a surface on which the material hardly adheres. In particular, by coating the portion to be immersed in the dispersion liquid of the material together with the honeycomb structure, it becomes easy to wash off even if the material adheres to the protective equipment. In particular, when the material to be supported on the honeycomb structure is hydrophilic, a process for forming a hydrophobic surface is performed. Further, when the material to be carried on the honeycomb structure is hydrophobic, a process for making the surface of the protector hydrophilic is performed.

  Further, as shown in claim 8 of the present invention, the surface thereof is particularly processed with a fluororesin. Thereby, after impregnating the liquid of the material by the above method, the protective equipment can be easily cleaned, the number of steps for cleaning the protective equipment can be reduced, and the manufacturing cost can be reduced. Moreover, since the material adhering to the protective equipment is reduced, the material cost can be reduced.

  In the invention according to claim 9 of the present invention, when the material liquid is infiltrated into the honeycomb structure of the protective device by the above method, at least one of colloidal silica, sodium silicate, and lithium silicate is used as a dispersion of the material. An inorganic binder containing one is used, and after supporting, firing, and burning the organic matter, an inorganic honeycomb structure having high heat resistance can be obtained. This honeycomb structure is hardened by an inorganic binder and hard, but since the supported amount is constant, there is little variation in strength and it can be used as a catalyst carrier or the like.

  In the invention according to claim 10 of the present invention, when the material liquid is infiltrated into the honeycomb structure of the protective device by the method of the previous period, at least zeolite, silica gel, activated carbon, alumina oxide, silica as a dispersion liquid of the material A honeycomb adsorbent is obtained by supporting an adsorbent using an inorganic binder as an adhesive on a honeycomb structure as a dispersion using an adsorbent containing one of alumina and an inorganic binder. In addition, by firing at a temperature at which the adsorbent does not change, a honeycomb adsorbent having only inorganic components can be obtained as having no carrying unevenness or clogging in the honeycomb.

  Further, by impregnating and supporting the outer periphery of the honeycomb structure with a protector, it is not necessary to attach unnecessary materials such as adsorbent to the outer peripheral portion of the honeycomb structure, so that the material cost can be reduced.

  The invention according to claim 11 of the present invention relates to an impregnation method for impregnating the liquid of the above material into the honeycomb structure and a subsequent drying method, after the honeycomb structure is impregnated into the dispersion of the material, the honeycomb structure With the body pulled up, with the above-mentioned protective device or the like floating the ventilation end surface of the honeycomb structure, ventilate from above the ventilation end surface of the honeycomb structure to blow the liquid that did not penetrate or adhere to the honeycomb structure Drop it. After this step, the upper and lower surfaces of the honeycomb structure are turned over, and then ventilated from above and dried. By using this method of repeating the reversing operation one or more times, the material can be supported uniformly in the thickness direction of the air flow direction of the honeycomb structure, and unevenness of material support can be reduced.

  Further, when a plurality of honeycomb-shaped elements are obtained by slicing the honeycomb structure, a honeycomb-shaped element with little variation in the amount of the material carried can be obtained.

  For this method, it is desirable that both of the ventilation end surfaces of the honeycomb structure float in the air.

  Further, as the invention of claim 12 of the present invention, after carrying the material by the impregnation method of the invention of claim 11 above, when carrying the material in the second impregnation, in the second time, The step of pulling up from the first impregnation and venting the protective device etc. from above while floating the ventilation end face of the honeycomb structure is performed by reversing the vertical direction of the honeycomb structure. By doing so, the material can be supported on the honeycomb structure more uniformly than one impregnation.

  The timing for attaching the protective device may be before or after impregnation with the material liquid, but before the impregnation, there is less concern that the wet honeycomb structure will be touched and contamination will occur. This is desirable because it prevents adhesion to the outer periphery of the structure.

  In addition, it is desirable that the third and subsequent impregnations determine the vertical direction of the ventilation end face under the respective manufacturing conditions. However, after impregnation and lifting, the honeycomb structure is ventilated from above the ventilation end face to obtain the honeycomb structure. After the liquid that has not penetrated or adhered to the body is blown off, it is desirable to repeat the operation of inverting the upper and lower surfaces of the honeycomb structure and then ventilating from above and drying it one or more times.

  In addition, as the invention according to claim 13 of the present invention, after impregnating and pulling up the material liquid into the honeycomb structure, it is ventilated from above the ventilation end surface, and the liquid that has not penetrated or adhered to the honeycomb structure is sufficiently removed. In the step of blowing down and then reversing the upper and lower surfaces of the honeycomb structure and then ventilating from above and drying, the wind speed of the wind that blows off the liquid that has not penetrated or adhered to the honeycomb structure is then dried. It is faster than the wind. While the excess liquid is blown off firmly, the drying can prevent the liquid from drying rapidly and causing cracks in the material, resulting in a decrease in strength.

  In addition, as a measure of at least the first reversal timing and wind speed when the air is passed from the impregnation and reversed and dried, the excess liquid that has not penetrated and adhered to the honeycomb structure after being impregnated and pulled up is used. It is desirable that the excess liquid be blown off by a wind speed that can be blown off, preferably at a wind speed of 5 m / second or more against the ventilation end surface of the honeycomb structure, and then reversed. If the drying time after reversal is too fast, cracks occur in the supported material due to rapid drying and the strength decreases, so 2 m / sec or less is desirable.

  Also, the time for blowing off the surplus liquid is almost the same as the end face on the lower side of the honeycomb structure, that is, the end face on the side where the surplus liquid is blown off and adhered by tension, and the liquid remains, after clogging work. It is good that it cannot be done. It is not desirable to ventilate with a too long and strong blown air, because the upper end face of the honeycomb structure is dried rapidly, which may cause cracks in the material and reduce the strength of the element.

  According to the fourteenth aspect of the present invention, when laminating the single-wave formed bodies of the honeycomb structure, the shape is retained by fixing the outer periphery with a protective device without using any adhesive. When the material dispersion is impregnated and the material is infiltrated, the material can be infiltrated into the portion where the adhesive must be used for shape retention, and the material can be loaded more. Also, the infiltrated material acts as an adhesive, adheres the contact portion of the laminate, and can retain the shape even if the protective equipment is removed. Also, depending on the manufacturing method, performing a baking step to burn off the organic content, compared to the case where the adhesive burns by baking, the method of the present invention penetrates the portion where the adhesive was, The strength after firing does not drop. In addition, after lamination | stacking, when it cannot fix with a protector, what is necessary is just to hold shape with a small amount of adhesives, an adhesive tape, etc. once.

  Further, the invention according to claim 15 of the present invention is to slice the element obtained in the drying process from the penetration of the material of the honeycomb structure to obtain a honeycomb-shaped element having a desired thickness. Compared to impregnating each sliced honeycomb structure in order to stabilize the amount of material supported, the number of impregnation steps can be reduced, so the number of man-hours can be greatly reduced, and the amount of material supported is stable. Yes.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
As shown in FIG. 1 and FIG. 2, a single-wave molded body formed by joining the flat sheet 1 and the corrugated sheet 2 is wound up, and a metal honeycomb or the like is formed on the outer periphery of the cylindrical honeycomb structure 3. A protective plate 4 obtained by winding a single plate into a cylindrical shape is coated with a metal plate that has a rigidity that prevents deformation due to external force after protecting the honeycomb, and that has good bending work and protective workability. Protect. The metal plate is preferably a stainless steel plate having a thickness of 0.2 to 1 mm.

  In addition, the component of the sheet at this time is preferably a mixture of glass fiber or ceramic fiber, inorganic fibrous mineral, and organic pulp or organic binder in consideration of the later-described firing step, and the organic content disappears after firing. However, it is desirable because the strength and structure are maintained by the inorganic fibers.

  At this time, the upper end surface 5 of the protection plate and the lower end surface 6 of the protection plate protrude beyond the ventilation upper end surface 7 and the ventilation lower end surface 8 of the honeycomb structure 3, and the ventilation upper end surface 7 and the ventilation of the honeycomb structure 3. The lower end surface 8 is kept floating in the air at a distance of 10 so that even if all or part of the honeycomb cells are covered with the floor surface 9 or the like, a distance 10 is provided. In order to hold the honeycomb structure with the protective plate from the circumferential direction, it is desirable that the protective plate is fastened with a fastener 11 or the like at a predetermined circumferential distance.

  Note that only one end face that does not contact the floor surface 9 may be lifted, but both ends must be in a floating state when the air is reversed and vented as described later. Note that the distance 10 between the end face of the protective plate and the end face of the honeycomb structure when floated is the end face of the two sheets when the flat sheet 1 and the corrugated sheet 2 are joined as shown in FIG. The meandering portion 12 is formed by joining with displacement. Thereby, the length of the honeycomb structure in the height direction is shifted depending on the position. In consideration of this, it is preferable that the distance 10 has a margin so that the shifted end surface does not contact the floor surface. On the other hand, however, if the distance 10 is too long, the material adheres to the plate when the liquid of the material is impregnated or poured with the protective plate 4 attached, and the material is wasted. It is not desirable to be in Therefore, since the meandering distance is usually about 0 to 2 mm, the distance 10 between the protective plate end face and the end face of the honeycomb structure is preferably about 2 to 4 mm.

  As an example of the fastener, as shown in FIG. 2, a fastener 11 that is pulled by a hook, or a length adjusting portion 13 is provided on the outer periphery of the protective plate 4 as shown in FIG. As shown in FIG. 5, a screw-type length adjusting portion 17 attached to the protective plate 16 is used to adjust the circumferential length of the protective plate 16 and protect it with a hook 18 as shown in FIG. There are a jig for connecting the both ends of the plate 16 and pulling and fixing the hook 18 with the pulling lever 19, and a ring (not shown) wound around the protector. It is desirable that the circumferential direction of the protective plate can be changed so as to correspond to the circumferential distance of the columnar honeycomb structure.

  The honeycomb structure 20 with protective equipment obtained by the above method is a method as shown in FIG. 6, using a porous adsorbent such as zeolite, silica gel, activated carbon, alumina oxide, silica alumina as a material, and an inorganic binder. The dispersed slurry 21 is impregnated 22 and the adsorbent and inorganic binder are sufficiently infiltrated and adhered to the honeycomb structure, and then pulled up and ventilated by the blower 23 to blow off the excess liquid 24 remaining in the honeycomb cell. .

  After blowing off the surplus liquid 24, as shown in FIG. 7, the upper and lower surfaces of the honeycomb structure 20 with the protective device of FIG. 6 are reversed and ventilated. As a result, when the surplus liquid 24 is blown off, the liquid on the end face remaining in a small amount is pushed back and dried while being drawn down along the honeycomb cells. Therefore, the carrying unevenness does not occur and can be carried uniformly.

  It should be noted that the wind speed and time for blowing off the surplus liquid 24 during this operation are set such that the surplus liquid 24 is blown off and the liquid does not remain on the ventilation lower end surface 8 of the honeycomb structure 3 due to tension. Similarly, the time is set so that no liquid remains on the lower end face 8 of the ventilation. If it is too long, the upper ventilation end surface 7 above the honeycomb structure is dried rapidly, so that the material is dried, cracks are generated due to shrinkage, and the strength is likely to be reduced compared to other portions. Further, with respect to the drying air after reversal, for the same reason as described above, fast drying generates cracks, so that it is slower than the blown off excess liquid, and the surface wind speed is preferably 3 m / second or less.

  The honeycomb structure obtained by removing the protective plate can be used as an adsorbing element having high performance, low pressure loss and a large processing area without uneven material loading. The removed protective plate can be washed and reused. However, it is desirable that the surface of the impregnated material is easily removed so that it can be washed more easily. Is desirable.

(Embodiment 2)
The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted. In Embodiment 1, as a honeycomb structure, a single wave molded body is wound into a cylindrical shape. However, as shown in FIG. 8, the core portion 25 is formed in a plate shape, and the core portion 25 is wound around in a track shape. The taken track type honeycomb structure 26 may be formed. For example, by using a combination of a curved push plate 27 having a semicircular curved surface and a flat push plate 28 as a protector, the outer periphery of the honeycomb structure can be protected in various shapes. Of course, the curved push plate 27 having a curved surface may not be semicircular.

(Embodiment 3)
The same parts as those in the first and second embodiments are denoted by the same reference numerals, and detailed description thereof is omitted. In the second embodiment, the track-type honeycomb structure is used. However, as shown in FIG. 9, a number of single-wave molded bodies are stacked to form a prismatic honeycomb structure 29. It may be covered with the push plate 30.

(Embodiment 4)
The same parts as those in the first to third embodiments are denoted by the same reference numerals, and detailed description thereof is omitted. As the protector of the first to third embodiments, a protrusion 32 as shown in FIG. 10 is provided inside the protector 31, so that the end face of the honeycomb structure 3 floats in the air and does not come into contact with other objects. It may be. However, it is desirable that the protrusion 32 has a minimum size and a small number so that the honeycomb structure 3 can be supported so as not to block the outer peripheral cells of the honeycomb structure 3 as much as possible. In addition, it is desirable that the protrusions 32 are provided at both ends that support the honeycomb structure 3, but it is preferable that protrusions do not come in the same position on the upper and lower end surfaces. In addition, as a protrusion, it is desirable that a part of the protective device 31 is embossed to have a convex portion inside the protective device 31, or the convex portion is welded inside the protective device 31 by welding or the like.

(Embodiment 5)
The same parts as those in the first to fourth embodiments are denoted by the same reference numerals, and detailed description thereof is omitted. In the first embodiment, the material is impregnated once in the liquid, but the excess liquid may be dropped from the impregnation and the drying process may be performed a plurality of times. At this time, if the first impregnation and the direction of excess liquid dropping are reversed, the material unevenness of loading becomes smaller. Similarly to the first time, after dropping the excess liquid, it is preferable to invert, ventilate and dry.

(Embodiment 6)
The same parts as those in the first to fifth embodiments are denoted by the same reference numerals, and detailed description thereof is omitted. In the first to fifth embodiments, when the honeycomb structure obtained is removed in the range where the adsorbent does not change and the organic component is burned off by removing the protective plate, a honeycomb-like element having only an inorganic component is obtained. A highly heat-resistant element can be obtained.

(Embodiment 7)
The same parts as those in the first to sixth embodiments are denoted by the same reference numerals, and detailed description thereof is omitted. Although the adsorbent is used as the material of Embodiments 1 to 6, no adsorbent is used, and the liquid is impregnated only with an inorganic binder containing at least one of colloidal silica, sodium silicate, and lithium silicate. By firing, the resulting honeycomb structure has a low pressure loss, a large processing area, and a highly heat-resistant honeycomb catalyst carrier element. Further, the obtained honeycomb structure may be sliced to form a plurality of honeycomb-shaped catalyst carrier elements having a desired size.

(Embodiment 8)
The same parts as those in the first to seventh embodiments are denoted by the same reference numerals, and detailed description thereof is omitted. In Embodiments 1 to 7, the element carrying the material is used as it is as a honeycomb element, but the obtained honeycomb structure is sliced into a desired size, and the material carrying amount is stabilized from one honeycomb structure. The obtained element may be obtained.

  As a honeycomb structure sheet, a sheet containing glass fibers, inorganic minerals, organic fibers, and an organic binder is processed into a single-wave molded body, which is wound to form a cylindrical honeycomb structure having a diameter of 195 mm. Further, a 0.5 mm stainless steel plate is processed so as to have a winding die so as to have a diameter of 195 mm. Further, a stainless steel plate fastener as shown in the first embodiment is provided at both ends of the wound portion of the stainless steel plate. Further, the stainless steel plate is provided with a portion that overlaps by about 40 mm when wound into a 195 mm diameter cylindrical shape so as to cope with a deviation in the diameter of the honeycomb structure.

  The stainless steel plate is wound around the honeycomb structure and fixed with a fastener. At this time, it fixes so that it may float so that the both end surfaces of a honeycomb structure may not come out from the part which hits the bottom face of the cylinder of a stainless steel plate.

  This honeycomb structure with protective equipment is impregnated with a dispersion of material. The material dispersion is a dispersion of zeolite and inorganic binder.

  As shown in the first embodiment, the honeycomb structure is sufficiently impregnated with the dispersion liquid, penetrates and adheres to the sheet, and then is pulled up. At this time, the upper surface is defined as the A surface and the lower surface is defined as the B surface, and air is blown from above in the A → B direction by a blower to blow off excess liquid remaining in the honeycomb cells.

  After the excess liquid is blown off, the upper and lower surfaces of the honeycomb structure are reversed, that is, the B surface is directed upward, and air is passed from above in the B → A direction.

  Confirm that weight loss has disappeared by measuring the weight, and then dry. The obtained honeycomb structure is impregnated again with the B side up. The dispersion used at this time is the same as the first impregnation liquid. After impregnation and pulling up as in the first time, the B surface is faced up, and air is passed from above in the direction of B → A to wipe off excess liquid remaining in the honeycomb cells. After the excess liquid is blown off, the upper and lower surfaces of the honeycomb structure are reversed, and air is passed from above in the A → B direction with the A side facing up.

  After drying, impregnation from the same direction as the second time, dropping off excess liquid, inverting and drying.

  After three impregnations, the protective equipment is removed, the honeycomb structure is fired, the organic components are burned off, and then sliced into seven pieces so as to be perpendicular to the cylinder height direction. obtain. The weight of the element in the height direction is shown in FIG.

  In addition, after drying only for one-time impregnation and only two-time impregnation, after removing the protective equipment, firing the honeycomb structure and burning off the organic components, nine pieces are perpendicular to the column height direction. Each honeycomb-like adsorbing element was obtained, and the weight of the element was measured. The amount carried on each element was determined from the weight of the element in the height direction, and as an average value per impregnation for each impregnation, it was examined whether variation in element carrying would be reduced depending on the number of impregnations. The result is shown in FIG.

(Comparative Example 1)
After impregnating the honeycomb structure with a protective device of Example, it was ventilated from above in the A → B direction, and was not reversed, but was ventilated from above in the A → B direction and dried. Excess liquid was dropped from the second and third impregnations, and drying was performed by blowing from above in the B → A direction with the B side up, and from the upper side in the B → A direction without reversing. . In the same manner as in the example, the protective device was removed, the honeycomb structure was fired, the organic content was burned off, and then sliced into 7 pieces so as to be perpendicular to the column height direction to obtain each honeycomb-like adsorbing element. The weight of the element in the height direction is shown in FIG.

(Comparative Example 2)
Impregnation, surplus liquid dropping and drying were performed in the same manner as in Comparative Example 1 without attaching an outer peripheral protective plate. The impregnated honeycomb at this time was excessively dropped on a 5 mm × 5 mm mesh stainless steel net and dried. After impregnation three times, excess liquid dropping, and drying as in Comparative Example 1, the honeycomb structure was fired and the organic content was burned off, and then 7 pieces were perpendicular to the column height direction. Slice and obtain each honeycomb-like adsorbing element. The weight of the element in the height direction is shown in FIG.

  As a result, in Example 1, it can be confirmed that the method for manufacturing a honeycomb-shaped element of the present invention is effective in uniformizing the amount of material carried.

  A large amount of honeycomb filters carrying adsorbents, etc. can be produced, and a certain amount of material can be uniformly supported. Even when a thick honeycomb structure is formed and sliced, an element with a uniform carrying amount is obtained. be able to.

Schematic showing a honeycomb structure fixed by the protective plate of Embodiment 1 of the present invention Schematic showing that the honeycomb structure fixed with the protective plate is floating above the floor Schematic of meandering wave Schematic showing that the protective plate is fixed with screws and bottles Schematic of fastener with the hook Schematic diagram of the impregnation and surplus liquid dropping process of the honeycomb structure with the protective equipment Schematic of drying process of honeycomb structure with the same protective equipment Schematic showing a track-type honeycomb structure and a protector of Embodiment 2 of the present invention Schematic showing a prismatic honeycomb structure and a protector of Embodiment 3 of the present invention Schematic which shows protrusion of the protector of Embodiment 4 of this invention Comparative graph of element weight in the honeycomb height direction of Example 1 and Comparative Examples 1 and 2 of the present invention Graph of weight comparison of supported material in the honeycomb height direction by impregnation once, twice, and three times according to Example 1 of the present invention (average amount per impregnation) Schematic diagram of prior art single wave molded body Schematic of prior art honeycomb laminate

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Plane sheet 2 Corrugated sheet 3 Honeycomb structure 4 Protection plate 5 Upper end surface of protection plate 6 Lower end surface of protection plate 7 Ventilation upper end surface 8 Ventilation lower end surface 9 Floor surface 10 Distance 11 Fastener 12 Meander part 13 Length adjustment part 14 Screw 15 Bolt 16 Protection plate 17 Length adjusting portion 18 Hook 19 Tension lever 20 Protective honeycomb structure 21 Slurry 22 Impregnation 23 Blower 24 Excess liquid 25 Core portion 26 Track type honeycomb structure 27 Curved push plate 28 Planar shape Push plate 29 Prismatic honeycomb structure 30 Planar push plate 31 Protective device 32 Projection

Claims (15)

One flat sheet is kept flat, the other is a corrugated sheet formed into a corrugated shape, the flat sheet and the corrugated sheet are joined at the ridge line portion of the corrugated sheet to form a single wave compact, and then the single wave compact The honeycomb structure obtained by laminating the honeycomb structure is impregnated with the dispersion liquid of the material, and then dried while the honeycomb structure has the air-permeable end face floating in the air. . A honeycomb structure with a protective device that is larger than the outer peripheral surface of the honeycomb structure and at least longer than the ventilation direction of the honeycomb structure, and is fixed so that the end surface of the protective device protrudes from the ventilation end surface of the honeycomb structure. The method for manufacturing a honeycomb-shaped element according to claim 1, wherein the dispersion liquid of the material is infiltrated into the body and dried. The honeycomb structure according to claim 2, wherein the honeycomb structure has a columnar shape formed by winding and laminating a single-wave molded body, and the protective device is processed into a bent shape on a column with a metal plate. Method for manufacturing a cylindrical element. The honeycomb structure is a columnar shape formed by winding and laminating a single-wave molded body, the protective device is a columnar shape, the outer peripheral distance can be adjusted, and the outer peripheral distance can be fixed at a fixed value. A method for manufacturing a honeycomb-shaped element according to claim 2 or 3. Fix the outer periphery of the honeycomb structure using a protector having a plurality of curved surfaces and / or flat surfaces along the outer periphery of the honeycomb structure, float the ventilation end surface of the honeycomb structure, and disperse the dispersion of the material. 2. The method for manufacturing a honeycomb-shaped element according to claim 1, wherein the honeycomb structure is dried while maintaining the state in which the air-permeable end face of the honeycomb structure is floated in the air. The protective device is a protective device in which a protrusion is provided on a surface of the protective device on which the honeycomb structure is fixed and the end surface of the honeycomb structure is supported so that the end surface of the protective device protrudes from the end surface of the honeycomb structure. A method for manufacturing a honeycomb-shaped element according to any one of claims 2 to 5. 7. The protective device according to claim 2, wherein a part or all of the surface of the protective device is a surface on which the material is difficult to adhere, or a process in which the material is difficult to adhere to the surface of the protective device is performed. A method for manufacturing a honeycomb element according to claim 1. The method for manufacturing a honeycomb-shaped element according to claim 7, wherein a part or all of the surface of the protective device is coated with a fluororesin. The honeycomb structure is composed of a material including at least organic fibers and inorganic fibers, and the dispersion liquid of the material that permeates the honeycomb structure is an inorganic binder including at least one of colloidal silica, sodium silicate, and lithium silicate. The method for manufacturing a honeycomb-shaped element according to any one of claims 1 to 8, wherein organic components in the honeycomb structure are burned off by being supported on the honeycomb structure, dried, and fired. The honeycomb structure is composed of a material containing at least organic fibers and inorganic fibers, and the dispersion of the material that permeates the honeycomb structure includes an adsorbent containing at least one of zeolite, silica gel, activated carbon, alumina oxide, and silica alumina, The method for manufacturing a honeycomb element according to any one of claims 1 to 8, wherein the honeycomb element is an aqueous dispersion with an inorganic binder. The honeycomb structure ventilation direction is made up and down, impregnated in a dispersion of the material, and after pulling it up, excess liquid is dropped by ventilation from above the ventilation end surface, and then the honeycomb structure is turned upside down at least once, The method for manufacturing a honeycomb-shaped element according to any one of claims 1 to 10, wherein ventilation is performed from above and drying is performed. The honeycomb structure ventilation direction is set up and down, the material dispersion is impregnated, and after pulling it up, excess liquid is dropped by ventilation from above the ventilation end surface, and then the honeycomb structure is turned upside down at least once. The process from impregnation to drying, in which drying is performed by ventilation from above, the honeycomb structure in the second and subsequent steps is repeated a plurality of times with the first direction and the upside down. A method for manufacturing a honeycomb-shaped element according to any one of 10. The method for manufacturing a honeycomb-shaped element according to claim 11 or 12, wherein a wind speed for dropping excess liquid is higher than a wind speed for drying by ventilation. When a honeycomb structure is formed by laminating one-wave molded bodies, the outer periphery of the honeycomb structure is formed with a protective device without using an adhesive at the contact portion, and the shape is retained to penetrate the material dispersion. 14. The method for manufacturing a honeycomb-shaped element according to any one of claims 1 to 13, wherein the honeycomb structure is dried with the ventilation end face of the honeycomb structure kept floating in the air. A method for manufacturing a honeycomb-shaped element, wherein a plurality of honeycomb structures produced by the manufacturing method according to any one of claims 1 to 14 are obtained by slicing.

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