Wall flow type honeycomb ceramic green body with high filtering efficiency

Abstract

The utility model discloses a wall flow type honeycomb ceramic green body with high filtering efficiency. The wall flow type honeycomb ceramic green body comprises a green body, the blank body comprises a first filter body, a second filter body and a third filter body which are sequentially distributed from left to right, a first air inlet hole is formed in the left side face of the first filter body, a first air outlet hole is formed in the right side face of the first filter body, a second air inlet hole is formed in the left side face of the second filter body, and a second air outlet hole is formed in the right side face of the third filter body; according to the wall-flow type honeycomb ceramic green body with the high filtering efficiency, carbon particles in waste gas are filtered in a multi-stage mode, the filtering effect of the wall-flow type honeycomb ceramic green body is improved, and the wall-flow type honeycomb ceramic green body with the high filtering efficiency has the advantages of being high in filtering efficiency, high in practicability and high in practicability. The situation that the small filter holes are blocked by large particles is avoided, it is guaranteed that waste gas smoothly circulates in the wall-flow type honeycomb ceramic body, and the filtering efficiency of the wall-flow type honeycomb ceramic body is high.

Description

Technical Field

[0001] The utility model relates to the technical field of honeycomb ceramics, in particular to a wall-flow type honeycomb ceramic blank with high filtering efficiency. Background Art

[0002] Honeycomb ceramics are a new type of ceramic product with a honeycomb-like structure developed in the past thirty years. They were first used in small automobile exhaust purification and are now widely used in chemical, electric power, metallurgy, petroleum, electronic appliances, machinery and other industries. Moreover, they are becoming more and more widespread, and their development prospects are quite considerable. Among them, wall-flow honeycomb ceramics are often used in the filter industry. The porous thin-walled wall-flow honeycomb ceramics can filter and purify the carbon particles in the exhaust gas of diesel engines. In the prior art, when the wall-flow honeycomb ceramic body is used to filter the exhaust gas, the exhaust gas enters the parallel channels inside the honeycomb ceramic body. Since the two ends of the channel are blocked alternately, after the exhaust gas enters the channel, the carbon particles can only be intercepted by the porous thin wall to be discharged to the outlet, thereby achieving effective filtration of the exhaust gas. However, during use, all the filter holes of the wall-flow honeycomb ceramic body are of the same size. In order to ensure the filtering effect, the filter holes cannot be too large. The large carbon particles filtered out are easy to block the filter holes with smaller apertures, affecting the normal flow of the exhaust gas and reducing the filtering efficiency. Utility Model Content

[0003] The technical problem to be solved by the utility model is to overcome the existing defects and provide a wall-flow honeycomb ceramic body with high filtration efficiency, to perform multi-stage filtration on the carbon particles in the exhaust gas, to avoid the situation where large particles block the small filter holes, to ensure the smooth flow of the exhaust gas in the wall-flow honeycomb ceramic body, the wall-flow honeycomb ceramic body has a high filtration efficiency, and can effectively solve the problems in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wall-flow honeycomb ceramic blank with high filtration efficiency, comprising a blank;

[0005] Embryo: comprising filter body 1, filter body 2 and filter body 3, wherein filter body 1, filter body 2 and filter body 3 are arranged in sequence from left to right, filter body 1 is provided with air inlet hole 1 on the left side, filter body 1 is provided with air outlet hole 1 on the right side, filter body 2 is provided with air inlet hole 2 on the left side, filter body 2 is provided with air outlet hole 2 on the right side, filter body 3 is provided with air inlet hole 3 on the left side, filter body 3 is provided with air outlet hole 3 on the right side, carbon particles in the exhaust gas are filtered in multiple stages, the filtering effect of the wall-flow honeycomb ceramic blank is improved, the situation of large particles blocking small filter holes is avoided, the exhaust gas is ensured to flow smoothly in the wall-flow honeycomb ceramic blank, and the filtering efficiency of the wall-flow honeycomb ceramic blank is relatively high.

[0006] Furthermore, the filter holes of the filter body 1, the filter body 2 and the filter body 3 have apertures that decrease in a step-like manner from left to right, thereby performing multi-stage filtration on the exhaust gas.

[0007] Furthermore, the right ends of the air inlet hole 1, the air inlet hole 2 and the air inlet hole 3 are all closed structures, the left ends of the air outlet hole 1, the air outlet hole 2 and the air outlet hole 3 are all closed structures, the lateral positions of the air inlet hole 1, the air outlet hole 2 and the air outlet hole 3 correspond, and the lateral positions of the air outlet hole 1, the air inlet hole 2 and the air inlet hole 3 correspond, so as to guide the flow path of the exhaust gas.

[0008] Furthermore, the first air outlet hole and the second air inlet hole are staggered in both the vertical direction and the horizontal direction to ensure that a thin wall is formed between the air outlet hole and the air inlet hole.

[0009] Furthermore, the left and right sides of the filter body 1, the filter body 2 and the filter body 3 are all provided with sealing rubber pads to seal the filter body 1, the filter body 2 and the filter body 3.

[0010] Furthermore, a positioning frame plate is movably sleeved on the outer side surface of the whole formed by the filter body 1, the filter body 2 and the filter body 3 to position the filter body 1, the filter body 2 and the filter body 3.

[0011] Furthermore, a limit plate is installed at the right end of the positioning frame plate, and the limit plate is installed in cooperation with the baffle plate at the left end of the positioning frame plate to limit the left and right positions of the filter body one, the filter body two and the filter body three.

[0012] Compared with the prior art, the utility model has the following beneficial effects: the wall-flow honeycomb ceramic body with high filtration efficiency has the following advantages:

[0013] When filtering the exhaust gas, the exhaust gas flows along the air inlet hole 1, the air outlet hole 1, the air inlet hole 2, the air outlet hole 2, the air inlet hole 3 and the air outlet hole 3, so that the exhaust gas is forced to pass through the porous thin walls of the filter body 1, the filter body 2 and the filter body 3 in sequence, and the carbon particles in the exhaust gas are filtered in multiple stages, thereby improving the filtering effect of the wall-flow honeycomb ceramic body, avoiding the situation where large particles block small filter holes, and ensuring the smooth flow of exhaust gas in the wall-flow honeycomb ceramic body. The wall-flow honeycomb ceramic body has a high filtering efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the front view cross section of the overall device of the utility model;

[0016] Figure 3 This is an enlarged structural diagram of the utility model at A;

[0017] Figure 4It is a schematic diagram of the enlarged structure of point B of the utility model.

[0018] In the figure: 1 embryo body, 101 filter body 1, 102 filter body 2, 103 filter body 3, 2 air inlet hole 1, 3 air outlet hole 1, 4 air inlet hole 2, 5 air outlet hole 2, 6 air inlet hole 3, 7 air outlet hole 3, 8 sealing pad, 9 positioning frame plate, 10 limiting plate. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] See also Figure 1-4 , This embodiment provides a technical solution: a wall-flow honeycomb ceramic body with high filtration efficiency, comprising a body 1;

[0021] Embryo 1: includes filter body 1 101, filter body 2 102 and filter body 3 103, filter body 1 101, filter body 2 102 and filter body 3 103 are arranged from left to right, filter body 1 101 is provided with air inlet 2 on the left side, filter body 1 101 is provided with air outlet 3 on the right side, filter body 2 102 is provided with air inlet 4 on the left side, filter body 2 102 is provided with air outlet 5 on the right side, filter body 3 103 is provided with air inlet 6 on the left side, filter body 3 103 is provided with air outlet 7 on the right side, exhaust gas is discharged along The exhaust gas flows through the air inlet 12, the air outlet 13, the air inlet 24, the air outlet 25, the air inlet 36 and the air outlet 37, so that the exhaust gas is forced to pass through the porous thin walls of the filter body 101, the filter body 2 102 and the filter body 3 103 in sequence to filter the carbon particles in the exhaust gas. The filter pores of the filter body 101, the filter body 2 102 and the filter body 3 103 decrease in a step-shaped manner from left to right, thereby realizing multi-stage filtration of the exhaust gas, improving the filtration effect, avoiding the situation where large particles block the small filter holes, ensuring the smooth flow of the exhaust gas, and having a high filtration efficiency. The right ends of the first 2, second 4 and third 6 of the air inlet are all closed structures, and the left ends of the first 3, second 5 and third 7 of the air outlet are all closed structures. The air inlet 2, second 5 and third 7 correspond to each other in the horizontal position, and the air outlet 3, second 4 and third 6 correspond to each other in the horizontal position, so as to restrict the flow path of the exhaust gas. The first 3 and second 4 of the air outlet are staggered in the vertical and horizontal directions, so that a porous thin wall is formed between the first 3 and second 4 of the air outlet, and the left and right sides of the filter body 101, the filter body 2 102 and the filter body 3 103 are The surfaces are all provided with sealing pads 8 to seal the filter body 1 101, the filter body 2 102 and the filter body 3 103. The outer side surface of the whole composed of the filter body 101, the filter body 2 102 and the filter body 3 103 is movably sleeved with a positioning frame plate 9 to determine the positional relationship between the filter body 101, the filter body 2 102 and the filter body 3 103. A limiting plate 10 is installed on the right end of the positioning frame plate 9. The limiting plate 10 is installed in conjunction with the baffle at the left end of the positioning frame plate 9 to limit the lateral position of the filter body 101, the filter body 2 102 and the filter body 3 103.

[0022] The utility model provides a wall-flow type honeycomb ceramic blank with high filtering efficiency, and its working principle is as follows: when in use, the positioning frame plate 9 is used to arrange the filter body 101, the filter body 102 and the filter body 103 in a neat and horizontal manner, and the limit plate 10 and the baffle at the left end of the positioning frame plate 9 are used to limit the left and right positions of the filter body 101, the filter body 102 and the filter body 103, so that the filter body 101, the filter body 102 and the filter body 103 are combined to form a ceramic blank. When filtering the exhaust gas, the exhaust gas flows along the air inlet hole 1 2, the air outlet hole 1 3, the air inlet hole 2 4, the air outlet hole 2 5, the air inlet hole 3 6 and the air outlet hole 3 7, so that the exhaust gas is forced to pass through the thin walls of the filter body 101, the filter body 102 and the filter body 3 103 with porous properties in sequence, and the carbon particles in the exhaust gas are filtered in multiple stages, which improves the filtering effect and avoids the situation that large particles block the small filter holes, thereby ensuring the smooth flow of the exhaust gas and the high filtering efficiency.

[0023] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A wall-flow honeycomb ceramic body with high filtration efficiency, characterized in that: Includes embryoid body (1); Embryo (1): comprising filter body 1 (101), filter body 2 (102) and filter body 3 (103), wherein the filter body 1 (101), filter body 2 (102) and filter body 3 (103) are arranged in sequence from left to right, the left side surface of the filter body 1 (101) is provided with an air inlet hole 1 (2), the right side surface of the filter body 1 (101) is provided with an air outlet hole 1 (3), the left side surface of the filter body 2 (102) is provided with an air inlet hole 2 (4), the right side surface of the filter body 2 (102) is provided with an air outlet hole 2 (5), the left side surface of the filter body 3 (103) is provided with an air inlet hole 3 (6), and the right side surface of the filter body 3 (103) is provided with an air outlet hole 3 (7).

2. A wall-flow honeycomb ceramic body with high filtration efficiency according to claim 1, characterized in that: The filter pore sizes of the filter body 1 (101), the filter body 2 (102) and the filter body 3 (103) decrease in a step-like manner from left to right.

3. A wall-flow honeycomb ceramic body with high filtration efficiency according to claim 1, characterized in that: The right ends of the air inlet hole 1 (2), the air inlet hole 2 (4) and the air inlet hole 3 (6) are all closed structures, and the left ends of the air outlet hole 1 (3), the air outlet hole 2 (5) and the air outlet hole 3 (7) are all closed structures. The air inlet hole 1 (2), the air outlet hole 2 (5) and the air outlet hole 3 (7) are in corresponding lateral positions, and the air outlet hole 1 (3), the air inlet hole 2 (4) and the air inlet hole 3 (6) are in corresponding lateral positions.

4. The wall-flow honeycomb ceramic body with high filtration efficiency according to claim 1, characterized in that: The air outlet holes 1 (3) and the air inlet holes 2 (4) are staggeredly distributed in both the vertical and horizontal directions.

5. The wall-flow honeycomb ceramic body with high filtration efficiency according to claim 1, characterized in that: The left and right sides of the filter body 1 (101), the filter body 2 (102) and the filter body 3 (103) are all provided with sealing rubber pads (8).

6. The wall-flow honeycomb ceramic body with high filtration efficiency according to claim 1, characterized in that: The outer side surface of the whole formed by the filter body 1 (101), the filter body 2 (102) and the filter body 3 (103) is movably sleeved with a positioning frame plate (9).

7. A wall-flow honeycomb ceramic body with high filtration efficiency according to claim 6, characterized in that: A limiting plate (10) is installed at the right end of the positioning frame plate (9), and the limiting plate (10) is installed in coordination with the baffle plate at the left end of the positioning frame plate (9).

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