Regular heat storage filler formed by combining special-shaped honeycomb units

Abstract

The utility model relates to the technical field of VOCs (volatile organic compounds) treatment, and discloses a regular heat storage filler formed by combining special-shaped honeycomb units, which comprises the special-shaped honeycomb units which are flat honeycomb bodies with feet. The regular heat storage filler can be prepared by adopting a dry pressing / semi-dry pressing preparation process, a plastic compression molding preparation process and a plastic extrusion molding process. A mold with a large number of steel needles is arranged in an inner cavity of the mold, common mature dry pressing, semi-dry pressing, plastic pressing, plastic extrusion and other technological methods with high automation degree are adopted for production, and finally after firing, the materials can be combined into the tower-shaped large-specification honeycomb regular heat storage filler with four or two side faces provided with long and narrow transverse flow guide holes according to a certain rule. The regular heat storage filler retains all advantages of a large-specification honeycomb regular filler and an MLM filler, also has the effects of low cost, simple production, high automation degree, no organic pollution and the like, and has generalization performance.

Description

Technical Field

[0001] The utility model relates to the technical field of VOCs treatment, in particular to a regular heat storage filler composed of special-shaped honeycomb units. Background Technique

[0002] At present, the most mature, most useful and most widely used technology in VOCs treatment is the regenerative combustion (RTO) technology. Regenerative heat exchange materials are required in RTO, RCO, and HTAC environmental protection equipment. The regenerative heat exchange materials are the core materials in the above furnaces. Currently, the regenerative heat exchange materials used in this field are mainly ceramic honeycomb ceramics, porcelain honeycomb ceramics, and MLM card combinations. The first two belong to regular fillers, and the latter belongs to semi-regular fillers.

[0003] At present, a large amount of organic binders, organic plasticizers, and lubricants must be added during the production batching process of honeycomb ceramics to ensure that the honeycomb ceramic blanks can be successfully produced by the plastic extrusion method. However, such a production method will bring some problems: First, it leads to a significant increase in the cost of raw materials used; second, a large amount of complex intermediate organic substances are emitted in the low-temperature section of the firing process, polluting the atmosphere; third, it increases the later purification process, equipment system, and difficulty; fourth, it wastes national resources. With the continuous development of the economy and the increasing environmental protection requirements, the prices of petrochemical and coal chemical resources are also rising continuously. Therefore, the production cost of honeycomb ceramics will also become higher and higher. The basic unit of the MLM filler combination is a small tooth piece, and the bonding and combination production efficiency is too low. Secondly, the sizes of the small tooth porcelain pieces are different, and the warping and deformation are serious. At the same time, the two end faces of the MLM are uneven and have large concavities and convexities. The transverse movement resistance of the product during high-temperature thermal expansion and contraction is very large. Moreover, the MLM uses water glass as a binder, and its stability is poor. It is afraid of water and moisture, easy to crack and disperse. At the same time, the tooth piece unit in the MLM is formed by plastic extrusion, and the clay used will cause the deformation of the tooth piece unit, thereby resulting in poor regularity of the combined MLM. In view of this, we have proposed a regular heat storage filler composed of special-shaped honeycomb units. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a regular heat storage filler composed of special-shaped honeycomb units to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A regular heat storage filler composed of special-shaped honeycomb units, including special-shaped honeycomb units. The special-shaped honeycomb units adopt flat honeycombs with feet. The length and width of the flat honeycombs with feet are much larger than the height. The feet of the flat honeycombs with feet are arranged on the honeycomb hole surface, and the number of feet can be set to 1 to 6.

[0006] Preferably, the hole shape in the cross-section of the special-shaped honeycomb unit includes a regular quadrilateral, a regular hexagon, a regular triangle, a circle, an ellipse or other shapes. There are two forms of setting for the two end faces with holes of the special-shaped honeycomb unit. One of them is that the two end faces with holes are arranged with double arcs and four corners, and the two end faces with holes of the special-shaped honeycomb unit can also be arranged with one end face being arc-shaped with feet and the other end being flat.

[0007] Preferably, the setting positions of the feet of the special-shaped honeycomb unit include one-sided feet and two-sided feet. The cross-sectional shapes of the feet include a quadrilateral and an arc shape, etc. The distribution modes of the feet on the hole surface include outer four corners, inner four corners, two feet and one foot in the middle, etc. The height of the feet is designed between 3 mm and 30 mm.

[0008] Compared with the prior art, the present utility model provides a regular heat storage filler composed of special-shaped honeycomb units, having the following beneficial effects:

[0009] 1. The regular heat storage filler composed of special-shaped honeycomb units is produced by using a mold with a large number of steel needles arranged in the inner cavity of the mold and adopting common and mature process methods with high automation degree such as dry pressing, semi-dry pressing, plastic pressing, plastic extrusion, etc. Finally, after firing, they can be combined according to a certain rule into a tower-shaped large-scale honeycomb regular heat storage filler with four or two sides each having a long and narrow transverse diversion hole. This regular heat storage filler retains all the advantages of the large-scale honeycomb regular filler and the MLM filler, and at the same time also has the effects of low cost, simple production, high automation degree, no organic matter pollution, etc., and is more popularizable.

[0010] 2. The regular heat storage filler composed of special-shaped honeycomb units has transverse diversion holes for anti-blocking. At the same time, the combination changes of its longitudinal hole shape and hole size can strengthen the functions of air flow homogenization and waste gas purification efficiency, etc. And the feet of the special-shaped honeycomb units as the regular heat storage filler are feet with self-holes, and the air flow resistance is also reduced to the lowest after combination, improving the use effect of the regular heat storage filler.

[0011] 3. The regular heat storage filler composed of special-shaped honeycomb units is made into the final regular heat storage filler by freely selecting different combination forms of special-shaped honeycomb units, so that the regular heat storage filler can make the waste gas air flow disturbed and deflected to form turbulence, and at the same time can also homogenize the air flow distribution and air pressure field, and can make the regular heat storage filler itself have a certain anti-blocking effect. Further, the regular heat storage filler can also increase the heat exchange efficiency, strengthen the treatment and purification effect and prevent waste gas escape. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 Schematic structural diagram of the special-shaped honeycomb unit with four feet of the present utility model;

[0013] Figure 2 Schematic diagram of the stacked structure of the special-shaped honeycomb unit with four feet according to the present utility model;

[0014] Figure 3 Schematic diagram of the structure of the special-shaped honeycomb unit with four feet on both the upper and lower surfaces according to the present utility model;

[0015] Figure 4 Schematic diagram of the stacked structure of the special-shaped honeycomb unit with four feet on both the upper and lower surfaces according to the present utility model;

[0016] Figure 5 Schematic diagram of the structure of the special-shaped honeycomb unit with feet and in a square shape according to the present utility model;

[0017] Figure 6 Schematic diagram of the stacked structure of the special-shaped honeycomb unit with feet and in a square shape according to the present utility model;

[0018] Figure 7 Schematic diagram of the structure of the special-shaped honeycomb unit with feet on one side according to the present utility model;

[0019] Figure 8 Schematic diagram of the stacked structure of the special-shaped honeycomb unit with feet on one side according to the present utility model;

[0020] Figure 9 Schematic diagram of the structure of the special-shaped honeycomb unit with feet on two sides according to the present utility model;

[0021] Figure 10 Schematic diagram of the stacked structure of the special-shaped honeycomb unit with feet on two sides according to the present utility model;

[0022] Figure 11 Schematic diagram of the structure of the honeycomb unit with a special-shaped groove on one side according to the present utility model;

[0023] Figure 12 Schematic diagram of the stacked structure of the special-shaped honeycomb unit with a special-shaped groove on one side according to the present utility model;

[0024] Figure 13 Schematic diagram of the structure of the honeycomb unit with special-shaped grooves on both sides according to the present utility model;

[0025] Figure 14 Schematic diagram of the stacked structure of the honeycomb unit with special-shaped grooves on both sides according to the present utility model. Detailed implementation manners

[0026] As Figures 1-14As shown in the figure, the present utility model provides a technical solution: a regular heat storage filler composed of special-shaped honeycomb units, including special-shaped honeycomb units. The special-shaped honeycomb units adopt flat honeycombs with feet. The length and width of the flat honeycombs with feet are much larger than the height. The feet of the flat honeycombs with feet are arranged on the honeycomb hole surface, and the number of feet can be set to 1 to 6. At the same time, the hole shape in the cross-section of the special-shaped honeycomb unit includes one of square, regular hexagon, equilateral triangle, circle, ellipse or other shapes. There are two forms of setting the two end faces with holes of the special-shaped honeycomb unit. One of them is that the two end faces with holes are arranged with double arcs and four corners. And the two end faces with holes of the special-shaped honeycomb unit can also be set with one end face being arc-shaped with feet and the other end being flat. Further, the setting positions of the feet of the special-shaped honeycomb unit include one-sided feet and two-sided feet. The cross-sectional shapes of the feet include square and arc-shaped, etc. The distribution methods of the feet on the hole surface include outer four corners, inner four corners, two feet and one foot in the middle, etc. The height of the feet is designed between 3 mm and 30 mm.

[0027] In the embodiment of the present utility model, the composition of the special-shaped honeycomb unit includes 50% - 75% of SiO2, 16% - 50% of Al2O3, 2% - 10% of the mixture of K2O and Na2O, 1% - 15% of the mixture of CaO and MgO, 0.1% - 5% of Fe2O3, 0.1% - 5% of Ti2O and 0% - 3% of other components. The formulated mineral composition of the special-shaped honeycomb unit includes 10% - 90% of one of kaolin, china clay, ball clay or a composite of the above materials, 0.1% - 70% of feldspar flux raw materials, 0.1% - 30% of quartz inert raw materials, 0% - 15% of calcium and magnesium flux raw materials and 0% - 60% of pyrophyllite; the porcelain matrix mineral phase composition of the special-shaped honeycomb unit includes 5% - 35% of the mixture of quartz and cristobalite, 0.1% - 30% of mullite, 0.1% - 5% of gas phase and 20% - 85% of glass phase.

[0028] In the present utility model, the regular heat storage filler is regularly bonded with the hole surfaces of multiple special-shaped honeycomb units facing each other by glue. And the glue used for glue bonding in the above process is commercially available organic glue, inorganic glue, organic-inorganic composite glue or low-temperature glass powder or waste glass powder added to organic resin or inorganic glue for mixing. At the same time, the hole surfaces of each special-shaped honeycomb unit in the regular heat storage filler bonded by multiple special-shaped honeycomb units are parallel to each other. And the regular heat storage filler of special-shaped honeycomb units is provided with long and narrow transverse air flow channels that can be combined on four or two sides. In addition, multiple different special-shaped honeycomb units can be regularly combined according to the rules of with outer four corners and with inner four corners or regularly combined with special-shaped honeycomb units with different cross-sectional hole sizes to obtain the regular heat storage filler.

[0029] The above has generally described the present utility model in detail. However, based on the present utility model, some modifications or improvements can be made thereto, which are obvious to those of ordinary skill in the art. Therefore, modifications or improvements that do not depart from the spirit and idea of the present utility model are all within the protection scope of the present utility model.

Claims

1. A regular heat storage filler composed of combined special-shaped honeycomb units, including special-shaped honeycomb units, characterized in that: The special-shaped honeycomb unit adopts a flat honeycomb body with feet. The length and width of the flat honeycomb body with feet are much larger than the height. The feet of the flat honeycomb body with feet are arranged on the honeycomb body hole surface, and the number of feet can be set from 1 to 6.

2. The regular heat storage filler composed of special-shaped honeycomb units according to claim 1, characterized in that: The hole shapes in the cross-section of the special-shaped honeycomb unit include one of square, regular hexagon, equilateral triangle, circle, ellipse or other shapes. There are two forms of setting for the two end faces with holes of the special-shaped honeycomb unit. One of them is that the two end faces with holes are set with double arcs and four corners, and the two end faces with holes of the special-shaped honeycomb unit can also be set with one end face being arc-shaped with feet and the other end being flat.

3. The regular heat storage filler composed of special-shaped honeycomb units according to claim 1, characterized in that: The setting positions of the feet of the special-shaped honeycomb unit include one-face with feet and two-faces with feet. The cross-section shapes of the feet include square, circular arc, etc. The distribution methods of the feet on the hole surface include outer four corners, inner four corners, two feet and one foot in the middle, etc. The height of the feet is designed between 3 mm and 30 mm.

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