Tail gas emission particle collection device

Abstract

The utility model discloses a tail gas emission particle collecting device which comprises an outer shell, an opening is formed in one end of the outer shell, a threaded pipe is connected to the inner wall of the opening in a threaded mode, a sealing plate is arranged at the end, away from the outer shell, of the threaded pipe, an exhaust hole is formed in the center of the sealing plate, and a nut is welded to the center of the outer side of the sealing plate. And the interior of the nut communicates with the exhaust hole, and an exhaust pipe is welded to the outer wall of the nut. According to the utility model, the filter screens of which the pore diameters are sequentially reduced are arranged in the outer shell, so that particulate matters in tail gas can be filtered layer by layer, the pore diameters for intercepting the particulate matters are sequentially reduced, the probability that the filter screens are blocked by the particulate matters is reduced, the exhaust resistance is reduced, and the collection efficiency of the particulate matters is guaranteed; and the filter screen is clamped and fixed through the upper frame and the lower frame which are detachable, so that the filter screen is conveniently taken out for cleaning, and the filter screen is prevented from being blocked.

Description

TECHNICAL FIELD

[0001] The utility model relates to excavator tail gas collection technical field especially relates to a tail gas emission particle collection device. BACKGROUND

[0002] The excavator needs high power operation, and a large amount of tail gas is inevitably generated, and these tail gas seriously pollutes the environment, and the life safety of the operating personnel is involved, and the existing engineering machinery engine tail gas emission usually adopts the filter screen to connect the water tank purification and then discharges, but this way directly influences the power of the engine because of the great resistance generated in the purification process, and the effect is still not ideal. UTILITY MODEL CONTENT

[0003] The utility model aims at solving the shortcomings in the prior art and provides a tail gas emission particle collection device.

[0004] In order to realize the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A tail gas emission particle collection device, including the outer shell, the outer shell one end is opened, and the inner wall of the opening is screwed with the threaded pipe, the threaded pipe is away from the outer shell one end and is provided with the sealing plate, and the sealing plate center position is opened and is provided with the exhaust hole, the sealing plate outside the center position is welded with the nut, and the nut inside is communicated with the exhaust hole, and the nut outer wall is welded with the exhaust pipe.

[0006] The filter mechanism is slidably inserted into the outer shell, and the filter mechanism includes a connecting rod, and a plurality of annular fixing frames are fixedly arranged on the connecting rod, a plurality of annular fixing frames are sequentially connected with filter screens, and the mesh size of a plurality of filter screens is sequentially reduced.

[0007] By setting the filter screen with sequentially reduced aperture in the outer shell, the particulate matter in the tail gas can be filtered layer by layer, the aperture of the trapped particulate matter is sequentially reduced, the probability of particulate matter blocking the filter screen is reduced, the exhaust resistance is reduced, and the collection efficiency of the particulate matter is ensured

[0008] Preferably, the outer shell is connected with the air inlet pipe away from the exhaust pipe, and the air inlet pipe, the outer shell and the exhaust pipe are sequentially communicated.

[0009] Preferably, the inner wall of the opening is provided with an internal thread matched with the threaded pipe, and the sealing plate is provided with a high-temperature-resistant sealing ring on the inner wall close to the opening.

[0010] Preferably, the annular fixing frame includes an upper frame and a lower frame, and the inner walls of the upper frame and the lower frame are provided with arc-shaped clamping grooves, and the filter screen is clamped in the clamping groove.

[0011] Preferably, one end of the lower frame is rotatably connected with a rotating rod, and one end of the upper frame is connected with the rotating rod.

[0012] Preferably, the other end of the lower frame is provided with a clamping groove, and the other end of the upper frame is provided with a clamping block matched with the clamping groove.

[0013] By screwing the filtering mechanism in the outer shell and clamping and fixing the filtering screen through the detachable upper frame and lower frame, the filtering screen can be taken out for cleaning, and the filtering screen is prevented from being blocked.

[0014] The beneficial effects of the present application are as follows:

[0015] 1. The tail gas emission particle collecting device provided by the present application can filter the particles in the tail gas layer by layer, reduce the aperture of the trapped particles, reduce the probability of the particles blocking the filtering screen, reduce the exhaust resistance, and ensure the collection efficiency of the particles.

[0016] 2. The tail gas emission particle collecting device provided by the present application can screw the filtering mechanism in the outer shell, and clamp and fix the filtering screen through the detachable upper frame and lower frame, so that the filtering screen can be taken out for cleaning, and the filtering screen is prevented from being blocked. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 FIG. 1 is a structural schematic view of a filtering mechanism of a tail gas emission particle collecting device according to the present application;

[0018] Figure 2 FIG. 1 is a structural schematic view of a filtering mechanism of a tail gas emission particle collecting device according to the present application;

[0019] Figure 3 FIG. 1 is a structural schematic view of a filtering mechanism of a tail gas emission particle collecting device according to the present application;

[0020] In the drawings: 1, outer shell; 2, air inlet pipe; 3, air outlet pipe; 4, threaded pipe; 5, sealing plate; 6, nut; 7, connecting plate; 8, lower frame; 9, upper frame; 10, filtering screen; 11, clamping groove; 12, rotating shaft; 13, clamping groove. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings of the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments.

[0022] Embodiment 1, refer to Figure 1The utility model provides a tail gas emission particle collection device, including the outer shell 1, the outer shell 1 one end is opened with the opening, and the inner wall of opening is screwed with threaded pipe 4, threaded pipe 4 is away from the outer shell 1 one end and is provided with sealing plate 5, and the center position of sealing plate 5 is opened with exhaust hole, and the center position of sealing plate 5 outside is welded with nut 6, and nut 6 inside is communicated with exhaust hole, and the outer wall of nut 6 is welded with exhaust pipe 3;

[0023] The outer shell 1 is slidably inserted into the filtering mechanism, and the filtering mechanism includes a connecting rod 7, and a plurality of annular fixing frames are fixedly arranged on the connecting rod 7 at equal distances, and a plurality of filtering screens 10 are sequentially clamped on the inner walls of the annular fixing frames, and the mesh diameters of the plurality of filtering screens 10 sequentially decrease.

[0024] By arranging the filtering screens 10 with sequentially decreasing mesh diameters in the outer shell 1, the particulate matters in the tail gas can be filtered layer by layer, the mesh diameter for trapping the particulate matters is sequentially reduced, the probability of the particulate matters blocking the filtering screens 10 is reduced, the exhaust resistance is reduced, and the collection efficiency of the particulate matters is ensured

[0025] The outer shell 1 is connected with an air inlet pipe 2 at the end away from the exhaust pipe 3, and the air inlet pipe 2, the outer shell 1 and the exhaust pipe 3 are sequentially communicated.

[0026] The inner wall of the opening is provided with an internal thread matched with the threaded pipe 4, and the inner wall of the side of the sealing plate 5 close to the opening is provided with a high-temperature-resistant sealing ring.

[0027] The annular fixing frame includes an upper frame 9 and a lower frame 8, and the inner walls of the upper frame 9 and the lower frame 8 are both provided with arc-shaped clamping grooves 11, and the filtering screens 10 are clamped in the clamping grooves 11.

[0028] The lower frame 8 is rotatably installed with a rotating rod 12 at one end, and the upper frame 9 is connected with the rotating rod 12 at one end.

[0029] The other end of the lower frame 8 is provided with a buckling groove 13, and the other end of the upper frame 9 is provided with a clamping block buckled with the buckling groove 13.

[0030] By screwing the filtering mechanism into the outer shell 1 and clamping and fixing the filtering screens 10 through the detachable upper frame 9 and the lower frame 8, the filtering screens 10 can be easily taken out for cleaning, so that the filtering screens 10 are prevented from being blocked.

[0031] Working principle: when in use, the air inlet pipe 2 is connected with the tail gas exhaust pipe, the tail gas enters the outer shell 1 and is filtered by the filtering screens 10 with sequentially decreasing mesh diameters, the particulate matters in the tail gas can be filtered layer by layer, the mesh diameter for trapping the particulate matters is sequentially reduced, and after the collection is completed, the filtering screens 10 can be detached for cleaning the trapped particulate matters.

[0032] The above merely describes a preferred embodiment of the present application, and the protection scope of the present application is not limited thereto, and any skilled person in the art, according to the technical scheme and the inventive concept of the present application, makes equivalent replacement or change within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A particulate matter collection device for exhaust gas, comprising a housing (1), characterized in that, The outer shell (1) has an opening at one end, and a threaded tube (4) is screwed onto the inner wall of the opening. A sealing plate (5) is provided at the end of the threaded tube (4) away from the outer shell (1), and an exhaust hole is opened at the center of the sealing plate (5). A nut (6) is welded at the center of the outer side of the sealing plate (5), and the inside of the nut (6) is connected to the exhaust hole. An exhaust pipe (3) is welded to the outer wall of the nut (6). The outer shell (1) is slidably inserted into the filter mechanism, and the filter mechanism includes a connecting rod (7), and a number of equally distributed annular fixing frames are fixed on the connecting rod (7). The inner walls of the number of annular fixing frames are sequentially clamped with filter screens (10), and the mesh size of the number of filter screens (10) decreases sequentially.

2. The exhaust gas particulate matter collection device according to claim 1, characterized in that, The outer shell (1) is connected to an air intake pipe (2) at the end away from the exhaust pipe (3), and the air intake pipe (2), the outer shell (1) and the exhaust pipe (3) are connected in sequence.

3. The exhaust gas particulate collection device according to claim 1, characterized in that, The inner wall of the opening is provided with an internal thread that is compatible with the threaded pipe (4), and a high-temperature resistant sealing ring is provided on the inner wall of the sealing plate (5) near the opening.

4. The exhaust gas particulate collection device according to claim 1, characterized in that, The annular fixing frame includes an upper frame (9) and a lower frame (8), and the inner walls of the upper frame (9) and the lower frame (8) are provided with arc-shaped slots (11), and the filter screen (10) is snapped into the slots (11).

5. The exhaust gas particulate collection device according to claim 1, characterized in that, The lower frame (8) has a rotating rod (12) rotatably mounted on one end, and the upper frame (9) is connected to the rotating rod (12) at one end.

6. The exhaust gas particulate collection device according to claim 1, characterized in that, The lower frame (8) has a buckle groove (13) at one end, and the upper frame (9) has a buckle block at the other end that is engaged with the buckle groove (13).

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