Exhaust gas muffling device

Abstract

The application discloses a kind of waste gas silencing equipment, including silencing shell, also include: two first conical tubes, rotatably arranged in the both ends of silencing shell;Waste gas silencing mechanism is detachably arranged in two first conical tubes, after waste gas enters into equipment, waste gas can be quickly silenced, and in the process of silencing, waste gas can be filtered in waste gas, and the waste gas silencing mechanism includes two second conical tubes.The application can utilize multiple first porous sound-absorbing panels and second porous sound-absorbing panels by setting second conical tube in first conical tube, reduce the flow rate of waste gas flow in silencing shell, and reduce the noise of waste gas by porous sound-absorbing, since waterproof air-permeable membrane is arranged in the sound-absorbing hole of porous sound-absorbing panel, waste gas can enter into cavity, and waste gas is preliminarily filtered by water in cavity, so that first porous sound-absorbing panel and second porous sound-absorbing panel can simultaneously play the effect of noise reduction and filtration.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of waste gas silencing, in particular to a waste gas silencing device. BACKGROUND

[0002] Glass needs to use hot blast furnace in production, the existing hot blast furnace waste gas emission is a very frequent work in daily production, the noise of the blast furnace workshop hot blast furnace waste gas emission can reach more than 120 decibels, the staff in the vicinity of the emission area needs to be away from the area to avoid high noise pollution. The noise of the hot blast furnace waste gas emission not only pollutes the environment, but also the vibration caused by the noise is harmful to the equipment.

[0003] Patent No. CN201920388543.3 discloses a blast furnace hot blast furnace waste gas silencer, which belongs to the technical field of flue gas emission. The technical problem to be solved is to provide a blast furnace hot blast furnace waste gas silencer which can effectively reduce noise and be easily disassembled and maintained. The technical scheme adopted is that the silencing component is fixed above the supporting bottom plate, the silencing inner cylinder is a cylindrical structure with one end open, the cylinder wall of the silencing inner cylinder is provided with a silencing hole, the silencing outer cylinder is sleeved outside the silencing inner cylinder, one end of the silencing outer cylinder is sealingly and fixedly connected with the outer wall of the open end of the silencing inner cylinder, the other end of the silencing outer cylinder is an open structure, the supporting ring is fixedly connected with the outer wall of the silencing outer cylinder, the supporting ring is fixedly connected with the clamping seat below, and the clamping seat is arranged in cooperation with the clamping groove on the supporting bottom plate. The silencing component can effectively reduce noise and avoid interference of high noise on workers.

[0004] At present, the existing waste gas silencing device still has some deficiencies, for example; the existing waste gas silencing device can effectively reduce noise and avoid interference of high noise on workers in other areas during use by using the silencing inner cylinder and the silencing tail cylinder, but in actual use, the noise reduction effect is not good by simply using the cylinder body, and the existing waste gas silencing device can only silencing, and cannot filter the waste gas during silencing, so that multiple waste gas treatment devices need to be set, which is very inconvenient. SUMMARY

[0005] The present application aims to provide a waste gas silencing device to solve the problems raised in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical scheme: a waste gas silencing device, comprising a silencing shell, further comprising:

[0007] Two first conical pipes are rotatably arranged at both ends of the silencing shell;

[0008] The exhaust gas silencing mechanism is detachably arranged in the two first conical pipes, can quickly silence the exhaust gas after entering the equipment, and can filter the exhaust gas in the process of silencing, the exhaust gas silencing mechanism comprises two second conical pipes, the two second conical pipes are detachably connected in the first conical pipe, and the direction of the first conical pipe is opposite;

[0009] The upper and lower ends of the first conical pipe are connected with the first porous sound-absorbing plate on one side by screws, and the upper and lower ends of the second conical pipe are connected with a plurality of second porous sound-absorbing plates by screws;

[0010] The first porous sound-absorbing plate and the second porous sound-absorbing plate are internally provided with cavities, and a plurality of sound-absorbing holes are formed on the outer side of the first porous sound-absorbing plate and the second porous sound-absorbing plate, a waterproof and breathable film is fixedly connected in the sound-absorbing hole, and the cavity is filled with water.

[0011] In this technical scheme, a plurality of first porous sound-absorbing plates and second porous sound-absorbing plates are arranged in the first conical pipe and the second conical pipe, the flow rate of the exhaust gas flow in the silencing shell is reduced by using the plurality of first porous sound-absorbing plates and second porous sound-absorbing plates, and the noise of the exhaust gas is reduced by porous sound-absorbing, and the waterproof and breathable film is arranged in the sound-absorbing hole of the porous sound-absorbing plate, so that the exhaust gas enters the cavity of the first porous sound-absorbing plate and the second porous sound-absorbing plate, and is preliminarily filtered by the water in the cavity, so that the first porous sound-absorbing plate and the second porous sound-absorbing plate can simultaneously achieve the effects of noise reduction and filtering.

[0012] As an optional scheme of the technical scheme of the application, the upper and lower ends of the silencing shell are connected with water tanks by screws, one end of the water tank close to the silencing shell is communicated with a first pipeline, one end of the first pipeline away from the water tank penetrates through the silencing shell and is communicated with a water pump, one end of the water pump away from the first pipeline is communicated with a second pipeline, one end of the second pipeline away from the water pump is communicated with a horizontal water pipe, and a plurality of plate-shaped pipes are equidistantly communicated with the horizontal water pipe.

[0013] In this technical scheme, a plurality of plate-shaped pipes are inclinedly arranged on the horizontal water pipe, the noise and airflow can be blocked by the plurality of plate-shaped pipes, and the effect of noise reduction is further improved, and the inside of the silencing shell can be sprayed by the plate-shaped pipe after the water pump is opened, so that the exhaust gas is filtered by the spraying, so that the spraying filtering mechanism and the noise reduction mechanism are integrated, and a plurality of exhaust gas treatment devices are saved.

[0014] As an optional scheme of the technical scheme of the application, the two ends of the horizontal water pipe are in a sealed structure.

[0015] As an optional solution of the technical scheme of the present application, one end of the transverse water pipe away from the second pipeline is screw-connected with one end of a supporting rod, the other end of the supporting rod is screw-connected with a double-head motor, both ends of the double-head motor are connected with motor shafts, one end of the motor shaft away from the double-head motor is fixedly connected with a rotating rod, one end of the rotating rod away from the motor shaft is fixedly connected with an air extraction fan blade, and the air extraction fan blade is detachably connected with a second conical pipe inside.

[0016] In this technical scheme, the double-head motor can drive the second conical pipe and the first conical pipe to rotate, the air extraction fan blade is driven to rotate through the second conical pipe, the exhaust gas can be quickly extracted into the sound attenuation housing for treatment, thereby improving the efficiency of exhaust gas treatment and transmission.

[0017] As an optional solution of the technical scheme of the present application, the first conical pipe away from the sound attenuation housing is rotatably connected with a rotating joint, a plurality of third porous sound absorption plates are fixedly connected on the inner wall of the rotating joint.

[0018] In this technical scheme, not only the rotating joint can be connected with the external exhaust pipe to make the first conical pipe rotate around the rotating joint to transmit the exhaust gas without affecting the rotation of the air extraction fan blade, but also the third porous sound absorption plates arranged in the rotating joint can perform multi-hole sound absorption to further improve the noise reduction effect.

[0019] As an optional solution of the technical scheme of the present application, one side top and the other side bottom of the water tank are connected with one end of the first pipeline, and the other end of the first pipeline is detachably connected with a first pipe cover.

[0020] As an optional solution of the technical scheme of the present application, one side top and the other side bottom of the first porous sound absorption plate and the second porous sound absorption plate are connected with one end of the second pipeline, and the other end of the second pipeline is detachably connected with a second pipe cover.

[0021] As an optional solution of the technical scheme of the present application, annular grooves are formed on both sides of the sound attenuation housing, bearings are embeddedly connected in the annular grooves, and the inner ring of the bearing and the first conical pipe constitute a rotating structure.

[0022] As an optional solution of the technical scheme of the present application, supporting plates are screw-connected on both sides of the bottom of the sound attenuation housing, a supporting base is screw-connected on the bottom of the supporting plate, and an industrial computer is screw-connected on the front side of the supporting base.

[0023] Compared with the prior art, the present application has the following advantages:

[0024] 1. The present application can set multiple first and second porous sound-absorbing panels in the first and second conical pipes by setting the second conical pipe in the first conical pipe, reduce the flow rate of the exhaust gas flow in the sound-absorbing shell by using multiple first and second porous sound-absorbing panels, and can perform porous sound absorption to reduce the noise of the exhaust gas, and a waterproof and breathable film is provided in the sound-absorbing holes of the porous sound-absorbing panels, which can make the exhaust gas enter the cavities of the first and second porous sound-absorbing panels, and the water in the cavities can preliminarily filter the exhaust gas, so that the first and second porous sound-absorbing panels can simultaneously reduce noise and filter.

[0025] 2. The present application can block noise and airflow by using multiple plate-shaped pipes by setting multiple plate-shaped pipes on the horizontal water pipe, further improving the noise reduction effect, and the inside of the sound-absorbing shell can be sprayed through the plate-shaped pipe after the water pump is turned on, so that the spray filtering mechanism and the noise reduction mechanism are integrated, and multiple exhaust gas treatment devices are saved.

[0026] 3. The present application can use a double-head motor between two horizontal water pipes to drive the second conical pipe and the first conical pipe to rotate, drive the exhaust fan blades to rotate through the second conical pipe, and quickly exhaust the exhaust gas into the sound-absorbing shell for treatment, thereby improving the efficiency of exhaust gas treatment and transmission.

[0027] 4. The present application can use a third porous sound-absorbing panel in the rotary joint to not only connect the first conical pipe to the external exhaust pipe through the rotary joint, so that the first conical pipe can rotate around the rotary joint during transmission of the exhaust gas, without affecting the rotation of the exhaust fan blades, but also set a third porous sound-absorbing panel in the rotary joint to perform porous sound absorption and further improve the noise reduction effect. BRIEF DESCRIPTION OF DRAWINGS

[0028] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments with reference to the following drawings:

[0029] Figure 1 It is a whole view of the exhaust gas sound-absorbing device of the present application;

[0030] Figure 2 It is a sound-absorbing shell and conical pipe inside view of the exhaust gas sound-absorbing device of the present application;

[0031] Figure 3 It is a first and second porous sound-absorbing panel inside view of the exhaust gas sound-absorbing device of the present application;

[0032] Figure 4 It is a rotary joint side view of the exhaust gas sound-absorbing device of the present application.

[0033] In the figure: 1, support base; 101, industrial computer; 2, support plate; 201, sound-absorbing shell; 202, first conical pipe; 203, water tank; 204, first connecting pipe; 205, first pipe cover; 206, rotary joint; 207, second conical pipe; 208, second porous sound-absorbing plate; 209, first porous sound-absorbing plate; 210, annular groove; 211, bearing; 212, first pipeline; 213, water pump; 214, second pipeline; 215, horizontal water pipe; 216, plate-shaped pipe; 217, sound-absorbing hole; 218, waterproof air-permeable film; 219, second connecting pipe; 220, second pipe cover; 221, third porous sound-absorbing plate; 222, cavity; 3, support rod; 301, double-head motor; 302, motor shaft; 303, rotating rod; 304, exhaust fan blade. DETAILED DESCRIPTION

[0034] Referring to Figures 1-4 The application provides a technical solution: a waste gas sound-absorbing device, comprising a sound-absorbing shell 201, further comprising: two first conical pipes 202 rotatably arranged at two ends of the sound-absorbing shell 201; a waste gas sound-absorbing mechanism detachably arranged in the two first conical pipes 202, capable of quickly sound-absorbing waste gas after the waste gas enters the device, and capable of filtering the waste gas in the process of sound-absorbing; the waste gas sound-absorbing mechanism comprises two second conical pipes 207, which are detachably connected in the first conical pipes 202 and opposite to the direction of the first conical pipes 202; a first porous sound-absorbing plate 209 is screw-connected to one side of the upper and lower ends of the inner wall of the first conical pipe 202, and a plurality of second porous sound-absorbing plates 208 are screw-connected to the upper and lower ends of the inner wall of the second conical pipe 207; cavities 222 are formed in the interiors of the first porous sound-absorbing plate 209 and the second porous sound-absorbing plate 208, a plurality of sound-absorbing holes 217 are formed in the outer sides of the first porous sound-absorbing plate 209 and the second porous sound-absorbing plate 208, waterproof air-permeable films 218 are fixedly connected to the interiors of the sound-absorbing holes 217, and water is filled in the cavities 222; when the waste gas enters the first conical pipe 202, the noise generated by the waste gas is absorbed by the first porous sound-absorbing plate 209 in the first conical pipe 202, the waste gas enters the second conical pipe 207, the noise is secondarily absorbed by the plurality of second porous sound-absorbing plates 208 in the second conical pipe 207, and thus the noise is quickly reduced; since the cavities 222 and the water are arranged in the first porous sound-absorbing plate 209 and the second porous sound-absorbing plate 208, the waste gas passes through the waterproof air-permeable films 218 in the sound-absorbing holes 217 and enters the water in the cavities 222, and the water can preliminarily filter the waste gas.

[0035] Referring to Figure 2The upper and lower ends of the sound attenuation shell 201 are both connected with water tanks 203 by screws, one end of the water tank 203 close to the sound attenuation shell 201 is communicated with a first pipeline 212, one end of the first pipeline 212 far away from the water tank 203 penetrates through the sound attenuation shell 201 and is communicated with a water pump 213, one end of the water pump 213 far away from the first pipeline 212 is communicated with a second pipeline 214, one end of the second pipeline 214 far away from the water pump 213 is communicated with a horizontal water pipe 215, and the horizontal water pipe 215 is communicated with multiple plate-shaped pipes 216 arranged obliquely at equal intervals at the bottom, after the preliminary filtration is completed, the exhaust gas enters into the sound attenuation shell 201, due to the oblique arrangement of the plate-shaped pipes 216 on the horizontal water pipe 215, the exhaust gas can be obliquely blocked, the flow rate of the exhaust gas is reduced, and the noise is blocked multiple times, when the water pump 213 is opened, water can be pumped into the horizontal water pipe 215 through the first pipeline 212 and the second pipeline 214, and is sprayed out through the multiple plate-shaped pipes 216 to spray and filter the exhaust gas.

[0036] Please refer to Figure 2 The two ends of the horizontal water pipe 215 are both in a sealed structure.

[0037] Please refer to Figure 2 One end of the horizontal water pipe 215 far away from the second pipeline 214 is connected with one end of a supporting rod 3 by a screw, the other end of the supporting rod 3 is connected with a double-head motor 301 by a screw, the two ends of the double-head motor 301 are connected with motor shafts 302, one end of the motor shaft 302 far away from the double-head motor 301 is fixedly connected with a rotating rod 303, one end of the rotating rod 303 far away from the motor shaft 302 is fixedly connected with an air suction fan blade 304, and the air suction fan blade 304 is detachably connected with the second conical pipe 207, when it is needed to quickly pump the exhaust gas into the sound attenuation shell 201, the second motor can be opened, the second motor drives the second motor shaft 302, the second motor shaft 302 drives the rotating rod 303, the rotating rod 303 drives the air suction fan blade 304, the air suction fan blade 304 drives the second conical pipe 207, the second conical pipe 207 drives the first conical pipe 202 to rotate through the bearing 211, and the air suction fan blade 304 can quickly pump the exhaust gas into the sound attenuation shell 201.

[0038] Please refer to Figure 4 One end of the first conical pipe 202 far away from the sound attenuation shell 201 is rotatably communicated with a rotating joint 206, a plurality of third porous sound absorption plates 221 are fixedly connected on the inner wall of the rotating joint 206, the rotating joint 206 is connected with the external exhaust gas pipeline, so that the first conical pipe 202 can transmit the exhaust gas in the process of rotating around the rotating joint 206, which will not affect the rotation of the air suction fan blade 304, and the third porous sound absorption plates 221 arranged in the rotating joint 206 can perform porous sound absorption, further improving the noise reduction effect.

[0039] Please refer to Figure 1 and Figure 2The first pipe cover 205 is detachably connected to the other end of the first pipe 212.

[0040] Please refer to Figure 3 The second pipe cover 220 is detachably connected to the other end of the second pipe 214.

[0041] Please refer to Figure 2 The annular grooves 210 are arranged on both sides of the sound elimination shell 201, and the bearings 211 are embeddedly connected in the annular grooves 210.

[0042] Please refer to Figure 1 The support plates 2 are connected to both sides of the bottom of the sound elimination shell 201 by screws, the support bases 1 are connected to the bottom of the support plates 2 by screws, and the industrial control computers 101 are connected to the front sides of the support bases 1 by screws.

[0043] In use, when the exhaust gas enters the first conical tube 202, the noise generated by the exhaust gas is absorbed by the first porous sound-absorbing plate 209 in the first conical tube 202, and the exhaust gas enters the second conical tube 207, and the noise is further absorbed by the second porous sound-absorbing plate 208 in the second conical tube 207, so that the noise is quickly reduced. Because the first porous sound-absorbing plate 209 and the second porous sound-absorbing plate 208 are provided with cavities 222 and water, the exhaust gas passes through the waterproof and breathable film 218 in the sound-absorbing hole 217, enters the water in the cavity 222, and is preliminarily filtered by the water. After the preliminary filtration is completed, the exhaust gas enters the sound-absorbing shell 201. Because the plate-shaped tube 216 on the horizontal water pipe 215 is inclined, it can block the exhaust gas obliquely, reduce the flow rate of the exhaust gas, and block the noise multiple times. When the water pump 213 is opened, the water can be pumped into the horizontal water pipe 215 through the first pipe 212 and the second pipe 214, and sprayed and filtered by the plate-shaped tube 216. When it is necessary to quickly pump the exhaust gas into the sound-absorbing shell 201, the second motor can be opened, the second motor drives the second motor shaft 302, the second motor shaft 302 drives the rotating rod 303, the rotating rod 303 drives the exhaust fan blade 304, the exhaust fan blade 304 drives the second conical tube 207, the second conical tube 207 drives the first conical tube 202 to rotate through the bearing 211, and the exhaust fan blade 304 can quickly pump the exhaust gas into the sound-absorbing shell 201. The rotating joint 206 is connected with the external exhaust pipe, so that the first conical tube 202 can transmit the exhaust gas during the rotation around the rotating joint 206, without affecting the rotation of the exhaust fan blade 304. Moreover, the third porous sound-absorbing plate 221 arranged in the rotating joint 206 can absorb sound through multiple holes, further improving the noise reduction effect.

Claims

1. An exhaust sound deadening apparatus comprising a sound deadening housing (201), characterized by: Also include: Two first conical tube (202) is rotatably arranged in the muffler shell (201) both ends; The exhaust silencing mechanism is detachably arranged in the two first conical tube (202), which can quickly mute the exhaust gas after entering the device, and can filter the exhaust gas in the process of silencing, the exhaust silencing mechanism comprises two second conical tube (207), two second conical tube (207) is detachably connected in the first conical tube (202), and the direction of the first conical tube (202) is opposite; The upper and lower ends of the first conical tube (202) are connected with the first porous sound-absorbing plate (209) on one side by screws, and the second conical tube (207) is connected with a plurality of second porous sound-absorbing plates (208) on the upper and lower ends of the inner wall by screws; The first porous sound-absorbing plate (209) and the second porous sound-absorbing plate (208) are provided with a plurality of sound-absorbing holes (217) on the outer side, and the sound-absorbing holes (217) are fixedly connected with a waterproof and breathable film (218) inside; 2. An exhaust silencing device according to claim 1, characterised in that: The upper and lower ends of the muffler shell (201) are connected with a water tank (203) by screws, one end of the water tank (203) is communicated with a first pipeline (212) close to the muffler shell (201), one end of the first pipeline (212) is communicated with a water pump (213) through the muffler shell (201), one end of the water pump (213) is communicated with a second pipeline (214) away from the first pipeline (212), one end of the second pipeline (214) is communicated with a horizontal water pipe (215) away from the water pump (213), and a plurality of plate-shaped pipes (216) are communicated at equal intervals at the bottom of the horizontal water pipe (215).

3. An exhaust silencing device according to claim 2, characterised in that: The two ends of the horizontal water pipe (215) are in sealed structure.

4. An exhaust silencing device according to claim 2, characterised in that: One end of the support rod (3) is connected with the horizontal water pipe (215) away from the second pipeline (214) by screws, the other end of the support rod (3) is connected with a double-head motor (301) by screws, the two ends of the double-head motor (301) are connected with motor shafts (302), one end of the motor shaft (302) away from the double-head motor (301) is fixedly connected with a rotating rod (303), one end of the rotating rod (303) away from the motor shaft (302) is fixedly connected with an exhaust fan blade (304), and the exhaust fan blade (304) is detachably connected with the second conical tube (207) inside.

5. The exhaust silencing device of claim 1, wherein: One end of the first conical tube (202) away from the muffler shell (201) is rotatably communicated with a rotating joint (206), and a plurality of third porous sound-absorbing plates (221) are fixedly connected on the inner wall of the rotating joint (206).

6. An exhaust silencing device according to claim 2, characterised in that: One end of the first connecting pipe (204) is communicated with the top of one side and the bottom of the other side of the water tank (203), and the other end of the first connecting pipe (204) is detachably connected with a first pipe cover (205).

7. An exhaust silencing device according to claim 1, characterized in that: One end of the second connecting pipe (219) is communicated with the top of one side and the bottom of the other side of the first and second porous sound-absorbing plates (209 and 208), and the other end of the second connecting pipe (219) is detachably connected with a second pipe cover (220).

8. An exhaust silencing device according to claim 1, characterized in that: Annular grooves (210) are formed on both sides of the sound-absorbing shell (201), bearings (211) are embeddedly connected in the annular grooves (210), and the inner ring of the bearing (211) is rotatably connected with the first conical pipe (202).

9. An exhaust silencing device according to claim 1, characterized in that: Screwed on both sides of the bottom of the sound-absorbing shell (201) are support plates (2), the bottom of the support plate (2) is screwed with a support base (1), and the front side of the support base (1) is screwed with an industrial computer (101).

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