CN210768986U

CN210768986U - Automatic hole plugging device of porous honeycomb ceramic DPF

Info

Publication number: CN210768986U
Application number: CN202020364978.7U
Authority: CN
Inventors: 李�一; 凡辉; 李顺海; 聂达; 郑华磊
Original assignee: Yunnan Filter Environment Protection S&t Co ltd
Current assignee: Yunnan Filter Environment Protection S&t Co ltd
Priority date: 2020-03-21
Filing date: 2020-03-21
Publication date: 2020-06-16
Anticipated expiration: 2030-03-21

Abstract

The utility model discloses an automatic hole blocking device of porous honeycomb pottery DPF, include: the device comprises a material pushing motor, a material pushing piston, a storage tank, a sealing seat and a silica gel mask, wherein the material pushing motor is arranged at the bottom end of the storage tank, and the material pushing piston is arranged in the storage tank and is connected with the output end of the material pushing motor through a piston rod; a discharging pipe of the material storage tank extends into the sealing seat from the bottom end of the sealing seat, and the honeycomb structure body is inserted into the discharging pipe from the top end of the sealing seat; the silica gel mask is arranged in the sealing seat and sleeved outside the honeycomb structure body. The utility model discloses can seal the honeycomb structure and evenly supply with ceramic pug, guarantee the homogeneity of the shutoff degree of depth of porous honeycomb pottery DPF's compartment.

Description

Automatic hole plugging device of porous honeycomb ceramic DPF

Technical Field

The utility model belongs to the technical field of porous honeycomb pottery DPF processing equipment, more specifically the automatic hole blocking device that relates to a porous honeycomb pottery DPF that says so.

Background

Exhaust gas discharged from diesel engines, gasoline engines, and the like contains a large amount of particulate matter (particulate matter PM) including soot (soot particles) and the like. Since the emission of PM into the atmosphere causes environmental pollution, a filter for trapping particulates is mounted in an exhaust system of a diesel engine, a gasoline engine, or the like. In many cases, plugged honeycomb structures are used as filters to trap particulate matter in exhaust gas. The plugged honeycomb structure has a structure in which, in a honeycomb structure including a plurality of cells that are partitioned by porous cell walls and pass through in the axial direction, one end of a part of cells on one end face is sealed and the other end of the remaining cells on the other end face is sealed. The exhaust gas (treatment target gas) flows into the cells of the plugged honeycomb structure in which the inlet-side end face is not sealed and the outlet-side end face is sealed, passes through the porous partition walls, moves to the cells in which the inlet-side end face is sealed and the outlet-side end face is not sealed, and is discharged. At this time, the hole walls serve as a filter layer to trap PM in the exhaust gas.

The conventional process of forming the plugged portions (cell sealing portions) in the honeycomb structure is: the ceramic slurry is filled only into the cells to be sealed from the end face of the honeycomb structure having the cells to be unsealed and then dried and sintered before or after the plugging. However, when the ceramic slurry remains on the mask after the ceramic slurry is filled, since the ceramic slurry is connected to the ceramic slurry filled into the cells, a part of the filled mesh ceramic slurry is pierced together with the mask when the mask is peeled off, and a recess may be generated in the plugged portion from the surface. Further, since the mask has a certain thickness, after the mask is opened after the ceramic slurry is filled, the filled pattern protrudes from the end face of the honeycomb structure by the thickness of the mask, and the amount of protrusion of the ceramic slurry becomes larger, and it takes longer to dry and sinter the ceramic slurry. Because manual hole plugging can not guarantee the sealing state of the honeycomb structure body and the filling mechanism, the depth of the plugged holes is different, and the product quality is greatly influenced.

Therefore, how to provide an automatic hole plugging device of a porous honeycomb ceramic DPF is a problem that needs to be solved urgently by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model provides an automatic hole blocking device of porous honeycomb pottery DPF can seal the honeycomb structural body and evenly supply with ceramic pug, has guaranteed the homogeneity of the shutoff degree of depth of the compartment of porous honeycomb pottery DPF.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an automatic plugging device of a porous honeycomb ceramic DPF, comprising: the device comprises a material pushing motor, a material pushing piston, a material storage tank, a sealing seat and a silica gel mask, wherein the material pushing motor is installed at the bottom end of the material storage tank, and the material pushing piston is arranged in the material storage tank and is connected with the output end of the material pushing motor through a piston rod; a discharging pipe of the material storage tank extends into the sealing seat from the bottom end of the sealing seat, and the honeycomb structure body is inserted into the discharging pipe from the top end of the sealing seat; the silica gel mask is arranged in the sealing seat, and the honeycomb structure body is sleeved with the silica gel mask.

Preferably, the diameter of the pushing piston is matched with the inner diameter of the storage tank.

Preferably, the silica gel mask is of a T-shaped structure and comprises an upper disc and a lower column; the top end of the upper disc is abutted against the top wall in the sealing seat, and the side edge of the upper disc is abutted against the side wall in the sealing seat; the lower column is connected to the bottom end of the upper disc, and the bottom end of the lower column is abutted against the discharge pipe.

Preferably, a first gap is formed between the lower column and the sealing seat, and a first silica gel sealing ring is filled in the first gap.

Preferably, a second gap is formed between the discharge pipe and the sealing seat, the second gap is communicated with the first gap, and a second silica gel sealing ring is filled in the second gap.

Preferably, the sealing device further comprises a honeycomb structure body aligning plate, and the honeycomb structure body aligning plate is connected to the top end of the sealing seat.

Preferably, the honeycomb structure body correcting plate is arranged in an L-shaped structure, and two edges of the honeycomb structure body correcting plate are attached to the honeycomb structure body.

The beneficial effects of the utility model reside in that:

because manual hole plugging can not guarantee the sealing state of the honeycomb structure body and the filling mechanism, the depth of the plugged holes is different, and the product quality is greatly influenced. The utility model discloses in the discharging pipe stretched into the seal receptacle, honeycomb structure stretched into in the discharging pipe, and carried out the solid sealing of card of honeycomb structure through the silica gel mask to can seal honeycomb structure, and evenly supply ceramic pug, guaranteed the homogeneity of the shutoff degree of depth of the compartment of porous honeycomb pottery DPF; the first silica gel sealing ring can further seal between silica gel mask and the honeycomb ceramic body, and the second silica gel sealing ring can further seal between discharge gate and the honeycomb ceramic body to improve the leakproofness of honeycomb structure body shutoff material mouth greatly, guaranteed to fill pug degree of depth uniformity.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a front view of the present invention.

Wherein, in the figure,

1-a material pushing motor; 2-pushing piston; 3-a material storage tank; 4-sealing seat; 5-silica gel mask; 51-upper disc; 52-lower column; 6-a piston rod; 7-a discharge pipe; 8-a first silica gel sealing ring; 9-a second silica gel sealing ring; 10-honeycomb structure alignment sheet; 11-honeycomb structure.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides an automatic plugging device for a porous honeycomb ceramic DPF, comprising: the device comprises a pushing motor 1, a pushing piston 2, a storage tank 3, a sealing seat 4 and a silica gel mask 5, wherein the pushing motor 1 is arranged at the bottom end of the storage tank 3, and the pushing piston 2 is arranged in the storage tank 3 and is connected with the output end of the pushing motor 1 through a piston rod 6; a discharging pipe 7 of the material storage tank 3 extends into the sealing seat 4 from the bottom end of the sealing seat 4, the honeycomb structural body 11 is inserted from the top end of the sealing seat 4 and extends into the discharging pipe 7, and the sealing seat 4 can vertically hold and seal the honeycomb structural body 11 to form a filled plane; the silica gel mask 5 is arranged in the sealing seat 4 and sleeved outside the honeycomb structural body 11.

In another embodiment, the diameter of the pushing piston 2 is matched with the inner diameter of the storage tank 3, and the diameter of the pushing piston 2 is equal to or slightly smaller than the inner diameter of the storage tank 3, so that the filled pug cannot enter one side of the piston rod 6.

The silica gel mask 5 is of a T-shaped structure and comprises an upper disc 51 and a lower column 52; the top end of the upper disc 51 is abutted against the top wall in the sealing seat 4, and the side edge of the upper disc 51 is abutted against the side wall in the sealing seat 4; the lower column 52 is connected to the bottom end of the upper plate 51, and the bottom end of the lower column 52 abuts against the discharge pipe 7. The honeycomb ceramic body can be clamped through the silica gel mask 5.

In another embodiment, a first gap is provided between the lower column 52 and the sealing seat 4, and the first gap is filled with the first silicone sealing ring 8. A second gap is formed between the discharge pipe 7 and the sealing seat 4, the second gap is communicated with the first gap, and a second silica gel sealing ring 9 is filled in the second gap. When the honeycomb ceramic body is filled, firstly, air is filled into the first silica gel sealing ring 8 and the second silica gel sealing ring 9, so that the first silica gel sealing ring 8 and the second silica gel sealing ring 9 expand, the first silica gel sealing ring 8 expands to extrude the silica gel mask 5, the honeycomb ceramic body is clamped, the second silica gel sealing ring 9 expands to extrude the material pipe 7, and sealing between the honeycomb ceramic body and the material pipe 7 is ensured; after the packing is finished, the first silica gel sealing ring 8 and the second silica gel sealing ring 9 are deflated, so that the honeycomb ceramic body can be smoothly drawn out.

The utility model discloses still include honeycomb structure and lead positive board 10, honeycomb structure leads positive board 10 and connects on 4 tops of seal receptacle. The honeycomb structure aligning plate 10 is provided in an L-shaped structure, and both sides of the honeycomb structure aligning plate 10 are bonded to the honeycomb structure 11. The honeycomb structure aligning plate 10 can keep the honeycomb structure 11 smoothly entering the sealing seat 4 and tightly combined with the discharging pipe 7.

Because manual hole plugging can not guarantee the sealing state of the honeycomb structural body 11 and the filling mechanism, the depth of the plugged holes is different, and the product quality is greatly influenced. The utility model provides an automatic hole blocking device of porous honeycomb pottery DPF fills the pottery pug as hole sealing portion raw materials to the compartment that does not paste the mask, has guaranteed the homogeneity of the shutoff degree of depth of porous honeycomb pottery DPF's compartment and the plane degree of shutoff terminal surface. The discharge pipe 7 extends into the sealing seat 4, the honeycomb structural body 11 extends into the discharge pipe 7, and the honeycomb structural body 11 is clamped and sealed through the silica gel mask 5, so that the honeycomb structural body 11 can be sealed, ceramic mud is uniformly supplied, and the uniformity of the plugging depth of the cells of the porous honeycomb ceramic DPF is ensured; the first silica gel sealing ring 8 can further seal the silica gel mask 5 and the honeycomb ceramic body, and the second silica gel sealing ring 9 can further seal the discharge port and the honeycomb ceramic body, so that the sealing performance of the plugging port of the honeycomb structural body 11 is greatly improved, and the depth consistency of filling pugs is ensured; the material pushing motor 1 drives the material pushing piston 2 to move in the material storage tank 3, and can uniformly supply pug to the honeycomb structural body 11 regularly and quantitatively.

The utility model discloses a theory of operation:

(1) the mud is injected into the material storage tank, the vacuum in the tank is removed, and the discharge pipe and the sealing seat are kept in tight combination;

(2) the honeycomb structure body is vertically inserted into the sealing seat, the first silica gel sealing ring and the second silica gel sealing ring are pneumatically driven to lock the silica gel mask and the discharging pipe, and the plugged end face of the honeycomb structure body is sealed;

(3) the pushing motor operates to drive the pushing piston to move in the storage tank, and ceramic pugs are injected into the blocked end face in a timed and quantitative manner;

(4) and after plugging is finished, the first silica gel sealing ring and the second silica gel sealing ring are decompressed, and the honeycomb ceramic body is smoothly drawn out.

The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An automatic plugging device of porous honeycomb ceramic DPF, characterized by comprising: the device comprises a material pushing motor, a material pushing piston, a material storage tank, a sealing seat and a silica gel mask, wherein the material pushing motor is installed at the bottom end of the material storage tank, and the material pushing piston is arranged in the material storage tank and is connected with the output end of the material pushing motor through a piston rod; a discharging pipe of the material storage tank extends into the sealing seat from the bottom end of the sealing seat, and the honeycomb structure body is inserted into the discharging pipe from the top end of the sealing seat; the silica gel mask is arranged in the sealing seat, and the honeycomb structure body is sleeved with the silica gel mask.

2. The automatic plugging device for a porous honeycomb ceramic DPF as recited in claim 1, wherein the diameter of said pushing piston is matched to the inner diameter of said storage tank.

3. The automatic plugging device of a porous honeycomb ceramic DPF of claim 1, wherein the silica gel mask is a T-shaped structure comprising an upper disc and a lower column; the top end of the upper disc is abutted against the top wall in the sealing seat, and the side edge of the upper disc is abutted against the side wall in the sealing seat; the lower column is connected to the bottom end of the upper disc, and the bottom end of the lower column is abutted against the discharge pipe.

4. The automatic hole plugging device for a porous honeycomb ceramic DPF as claimed in claim 3, wherein a first gap is provided between said lower pillar and said sealing seat, and said first gap is filled with a first silica gel sealing ring.

5. The automatic hole plugging device for the porous honeycomb ceramic DPF as claimed in claim 4, wherein a second gap is provided between the discharge pipe and the sealing seat, the second gap is communicated with the first gap, and a second silica gel sealing ring is filled in the second gap.

6. The apparatus of claim 1, further comprising a honeycomb body pilot plate attached to the top of the seal housing.

7. The device of claim 6, wherein the honeycomb structure guide plate is disposed in an L-shaped configuration, and two edges of the honeycomb structure guide plate are attached to the honeycomb structure.