Honeycomb type wet oxidation catalyst

Abstract

The utility model is applicable to the field of wastewater treatment equipment, and provides a honeycomb type wet oxidation catalyst which comprises an oxidation catalyst body, a water inlet pipeline and a water outlet pipeline, the oxidation catalyst body comprises a plurality of oxidation catalyst modules which are fixedly connected end to end, and each oxidation catalyst module comprises a catalyst shell. Three catalytic reaction units are sequentially arranged in the catalytic converter shell, each catalytic reaction unit comprises a catalytic reaction pipe body rotationally arranged in the catalytic converter shell, the catalytic reaction pipe bodies of every two adjacent catalytic reaction units are attached in a zero-clearance mode, and honeycomb-shaped contact holes are formed in the catalytic reaction pipe bodies. The active ingredients of the catalyst are uniformly added to the inner side walls of the honeycomb type contact holes, meanwhile, the catalytic reaction units are designed to be rotatable, and different catalytic reaction units are rotated to different angles, so that the honeycomb type contact holes can form various through holes with different sizes, and the through holes can be flexibly adjusted according to actual requirements; therefore, the catalytic efficiency is maximized.

Description

Technical Field

[0001] The utility model is applicable to the field of wastewater treatment equipment and provides a honeycomb type wet oxidation catalyst. Background Art

[0002] COD (chemical oxygen demand) is one of the most common water quality indicators in the wastewater treatment process. It represents the concentration of organic matter in the wastewater. The higher the COD, the more serious the pollution. There are many methods to remove COD. Among them, the redox method is a method that can directly reduce COD. It uses chemical oxidants to oxidize organic matter into inorganic matter. In the redox method, catalysts are often used to accelerate the degradation process. The usual practice is to directly put the catalyst into the reactor, but this direct method cannot ensure that the catalyst is evenly dispersed, which leads to the catalyst's effect not being fully exerted. Therefore, a catalyst is needed that can help the catalyst fully contact with the wastewater to be treated. Utility Model Content

[0003] To this end, the utility model provides a honeycomb wet oxidation catalyst, which adopts a honeycomb contact hole design, and evenly adds the catalyst active ingredients to the inner wall of the honeycomb contact hole. At the same time, the catalytic reaction unit is designed to be rotatable. By rotating different catalytic reaction units to different angles, various different through-hole diameters can be formed, thereby further improving the catalytic reaction effect.

[0004] In order to achieve the above-mentioned purpose, the utility model provides the following technical solution: a honeycomb wet oxidation catalyst, comprising:

[0005] The oxidation catalyst body comprises a plurality of oxidation catalyst modules fixedly connected end to end, wherein the oxidation catalyst module comprises a catalyst housing, wherein three catalytic reaction units are sequentially arranged in the catalyst housing, which are sequentially referred to as a first catalytic reaction unit, a second catalytic reaction unit, and a third catalytic reaction unit, wherein the catalytic reaction units comprise a catalytic reaction tube body rotatably arranged in the catalyst housing, wherein the catalytic reaction tube bodies of two adjacent catalytic reaction units are fitted with zero gap, and wherein honeycomb contact holes are arranged in the catalytic reaction tube body;

[0006] The water inlet pipe and the water outlet pipe are respectively arranged at the front side and the rear side of the oxidation catalyst module.

[0007] Furthermore, the oxidation catalyst body is provided with a first reaction unit adjusting rod, a second reaction unit adjusting rod and a third reaction unit adjusting rod, the first reaction unit adjusting rod is respectively fixedly connected to the first catalytic reaction units of multiple oxidation catalyst modules, the second reaction unit adjusting rod is respectively fixedly connected to the second catalytic reaction units of multiple oxidation catalyst modules, and the third reaction unit adjusting rod is respectively fixedly connected to the third catalytic reaction units of multiple oxidation catalyst modules.

[0008] Furthermore, one of the front and rear end faces of the oxidation catalyst body is provided with a reaction unit angle adjustment groove, and the first reaction unit adjustment rod, the second reaction unit adjustment rod and the third reaction unit adjustment rod are respectively provided with a first locking screw, a second locking screw and a third locking screw that are adapted to the reaction unit angle adjustment groove.

[0009] Furthermore, a reaction unit adjustment limit groove and a reaction unit adjustment limit rod are respectively provided at the front and rear ends of the outer side wall of the catalytic reaction tube body; the reaction unit adjustment limit rod of the first catalytic reaction unit is matched with the reaction unit adjustment limit groove of the second catalytic reaction unit; and the reaction unit adjustment limit rod of the second catalytic reaction unit is matched with the reaction unit adjustment limit groove of the third catalytic reaction unit.

[0010] Furthermore, the inner wall of the catalyst shell is equidistantly provided with a plurality of reaction tube body rotation track grooves, and the outer wall of the catalytic reaction tube body is provided with a reaction tube body rotation track matched with the reaction tube body rotation track grooves.

[0011] Furthermore, the water inlet pipe and the water outlet pipe are rubber bellows.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. In the solution of the utility model, the oxidation catalyst body is designed to be composed of multiple oxidation catalyst modules that are fixedly connected end to end. Different oxidation catalyst modules can add different catalyst components according to needs and reaction sequence, which can make the reaction more complete;

[0014] 2. Three rotatable catalytic reaction units are arranged in the same oxidation catalyst module. By adjusting the three catalytic reaction units to different angles, the honeycomb contact holes of the three catalytic reaction units can be combined into different through-apertures, which can be flexibly adjusted according to actual needs to maximize efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of a honeycomb wet oxidation catalyst mentioned in the utility model;

[0016] Figure 2 for Figure 1 Schematic diagram of the internal structure of the middle oxidation catalyst body;

[0017] Figure 3 It is a structural schematic diagram of the oxidation catalyst module mentioned in the utility model;

[0018] Figure 4 for Figure 3 Schematic diagram of the internal structure of the medium oxidation catalyst module;

[0019] Figure 5 It is a structural schematic diagram of the catalytic reaction unit mentioned in the utility model;

[0020] Figure 6 The arrangement of the honeycomb-shaped contact holes of the three catalytic reaction units mentioned in the embodiment when the three catalytic reaction units are located at the same angle;

[0021] Figure 7 This is the arrangement of the honeycomb-shaped contact holes of the three catalytic reaction units when the three catalytic reaction units are rotated to different angles as mentioned in the embodiment.

[0022] In the figure: 1. oxidation catalyst module, 11. reaction tube body rotation track groove, 2. catalytic reaction unit, 21. catalytic reaction tube body, 22. reaction tube body rotation track, 23. honeycomb contact hole, 24. reaction unit adjustment limit groove, 25. reaction unit adjustment limit rod, 3. water inlet pipe, 4. water outlet pipe, 5. first reaction unit adjustment rod, 51. first locking screw, 6. second reaction unit adjustment rod, 61. second locking screw, 7. third reaction unit adjustment rod, 71. third locking screw. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0024] For example, see the attached Figure 1 The utility model provides a honeycomb wet oxidation catalyst, comprising an oxidation catalyst body, a water inlet pipe 3 and a water outlet pipe 4;

[0025] As attached Figure 2 ~Attached Figure 5As shown, the water inlet pipe 3 and the water outlet pipe 4 are respectively arranged at the front side and the rear side of the oxidation catalyst module 1, and the water inlet pipe 3 and the water outlet pipe 4 are rubber bellows, which are convenient for adjusting the direction and have better applicability; the oxidation catalyst body includes a plurality of oxidation catalyst modules 1 fixedly connected end to end, the oxidation catalyst module 1 includes a catalyst shell, and three catalytic reaction units 2 are arranged in the catalyst shell in sequence, which are called the first catalytic reaction unit, the second catalytic reaction unit, and the third catalytic reaction unit in sequence, and the catalytic reaction unit 2 includes a catalytic reaction unit rotatably arranged in the catalyst shell. The catalytic reaction tube bodies 21 of the two adjacent catalytic reaction units 2 are fitted with zero gap, a honeycomb contact hole 23 is arranged in the catalytic reaction tube body 21, a plurality of reaction tube body rotation track grooves 11 are arranged at equal intervals on the inner side wall of the catalyst shell, and a reaction tube body rotation track 22 adapted to the reaction tube body rotation track groove 11 is arranged on the outer side wall of the catalytic reaction tube body 21. Through the groove and track cooperation, it can be ensured that the catalytic reaction tube body 21 rotates in the predetermined track, and there will be no deviation problem after long-term rotation. At the same time, the oxidation catalyst body is provided with a first reaction unit adjustment rod 5, a second reaction unit adjustment rod 6, and a second reaction unit adjustment rod 7. The first reaction unit adjusting rod 5 is fixedly connected to the first catalytic reaction unit of each oxidation catalyst module 1, the second reaction unit adjusting rod 6 is fixedly connected to the second catalytic reaction unit of each oxidation catalyst module 1, and the third reaction unit adjusting rod 7 is fixedly connected to the third catalytic reaction unit of each oxidation catalyst module 1. Such a design enables the corresponding catalytic reaction units 2 of multiple oxidation catalyst modules 1 to be adjusted synchronously. One of the front and rear end surfaces of the oxidation catalyst body is provided with a reaction unit angle adjustment groove. The first reaction unit adjusting rod 5, the second reaction unit adjusting rod 6 and the third reaction unit adjusting rod 7 are respectively provided with a first locking screw 51, a second locking screw 61 and a third locking screw 71 adapted to the reaction unit angle adjustment groove. In this way, the reaction unit angle adjustment groove can control the rotation trajectory of the first reaction unit adjusting rod 5, the second reaction unit adjusting rod 6 and the third reaction unit adjusting rod 7 by limiting the first locking screw 51, the second locking screw 61 and the third locking screw 71, so as to prevent them from being displaced after long-term use.

[0026] In some of the embodiments, a reaction unit adjustment limit groove 24 and a reaction unit adjustment limit rod 25 are respectively provided at the front and rear ends of the outer side wall of the catalytic reaction tube body 21. The reaction unit adjustment limit rod 25 of the first catalytic reaction unit is matched with the reaction unit adjustment limit groove 24 of the second catalytic reaction unit, and the reaction unit adjustment limit rod 25 of the second catalytic reaction unit is matched with the reaction unit adjustment limit groove 24 of the third catalytic reaction unit. This design is to limit the relative adjustment angle of two adjacent catalytic reaction units 2. In this way, there is no need to manually determine the rotation angle during the adjustment process. It is only necessary to use the reaction unit adjustment limit rod 25 to abut against the two ends of the reaction unit adjustment limit groove 24 as a sign that the adjustment is in place, which makes the adjustment more convenient.

[0027] The working principle of this embodiment is as follows:

[0028] In this embodiment, when the three catalytic reaction units 2 are located at the same angle, as shown in the attached figure Figure 6 As shown, at this time, the honeycomb contact holes 23 of the three catalytic reaction units 2 are arranged in the same manner. At this time, the resistance through the oxidation catalyst module 1 is the smallest and the flow rate is the largest. This arrangement can be adopted when the required reaction time is short. When the three catalytic reaction units 2 are rotated to different angles, as shown in the attached figure, Figure 7 As shown, the honeycomb contact holes 23 of the three catalytic reaction units 2 are arranged in a staggered manner. At this time, since the aperture of the honeycomb contact holes 23 is directly reduced, the flow rate will also be reduced, which can bring a longer reaction time.

[0029] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention: the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0030] The above are only preferred embodiments of the present invention. Any person skilled in the art may modify the present invention or modify it into an equivalent technical solution by using the above technical solution. Therefore, any simple modification or equivalent replacement based on the technical solution of the present invention shall fall within the scope of protection claimed by the present invention.

Claims

1. A honeycomb wet oxidation catalyst, characterized in that: include: An oxidation catalyst body comprises a plurality of oxidation catalyst modules (1) which are fixedly connected end to end, wherein the oxidation catalyst modules (1) comprise a catalyst housing, wherein three catalytic reaction units (2) are arranged in sequence in the catalyst housing, which are referred to as a first catalytic reaction unit, a second catalytic reaction unit, and a third catalytic reaction unit in sequence, wherein the catalytic reaction units (2) comprise a catalytic reaction tube body (21) which is rotatably arranged in the catalyst housing, wherein the catalytic reaction tube bodies (21) of two adjacent catalytic reaction units (2) are fitted with zero clearance, and wherein the catalytic reaction tube body (21) is provided with a honeycomb-shaped contact hole (23); The water inlet pipe (3) and the water outlet pipe (4) are respectively arranged on the front side and the rear side of the oxidation catalyst module (1).

2. A honeycomb wet oxidation catalyst according to claim 1, characterized in that: The oxidation catalyst body is provided with a first reaction unit adjusting rod (5), a second reaction unit adjusting rod (6) and a third reaction unit adjusting rod (7); the first reaction unit adjusting rod (5) is respectively fixedly connected to the first catalytic reaction units of a plurality of oxidation catalyst modules (1); the second reaction unit adjusting rod (6) is respectively fixedly connected to the second catalytic reaction units of a plurality of oxidation catalyst modules (1); and the third reaction unit adjusting rod (7) is respectively fixedly connected to the third catalytic reaction units of a plurality of oxidation catalyst modules (1).

3. A honeycomb wet oxidation catalyst according to claim 2, characterized in that: One of the front and rear end surfaces of the oxidation catalyst body is provided with a reaction unit angle adjustment groove, and the first reaction unit adjustment rod (5), the second reaction unit adjustment rod (6) and the third reaction unit adjustment rod (7) are respectively provided with a first locking screw (51), a second locking screw (61) and a third locking screw (71) adapted to the reaction unit angle adjustment groove.

4. The honeycomb wet oxidation catalyst according to claim 1, characterized in that: Reaction unit adjustment limit grooves (24) and reaction unit adjustment limit rods (25) are respectively provided at the front and rear ends of the outer side wall of the catalytic reaction tube body (21); the reaction unit adjustment limit rod (25) of the first catalytic reaction unit is matched with the reaction unit adjustment limit groove (24) of the second catalytic reaction unit, and the reaction unit adjustment limit rod (25) of the second catalytic reaction unit is matched with the reaction unit adjustment limit groove (24) of the third catalytic reaction unit.

5. The honeycomb wet oxidation catalyst according to claim 1, characterized in that: The inner side wall of the catalyst shell is provided with a plurality of reaction tube body rotating track grooves (11) at equal intervals, and the outer side wall of the catalytic reaction tube body (21) is provided with a reaction tube body rotating track (22) matched with the reaction tube body rotating track grooves (11).

6. The honeycomb wet oxidation catalyst according to claim 1, characterized in that: The water inlet pipe (3) and the water outlet pipe (4) are rubber bellows.

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