Non-woven fabric production waste gas treatment device

Abstract

The utility model discloses a non-woven fabric production waste gas treatment device which comprises a mounting shell and a discharge plate, the dust collection plates are rotationally arranged in the mounting shell in a linear array mode, inclined ventilation holes are formed in the dust collection plates, and the dust collection plates swing under wind power so as to be switched between the state that the dust collection plates make contact with one another in a stacked mode and the state that the dust collection plates are parallel to one another in the inclined direction; the cleaning assembly comprises a brush plate used for scraping the dust collection plate. An inclined vent hole is formed in a dust collection plate of the non-woven fabric production waste gas treatment device, and an included angle is formed between the vent hole and the air incoming direction of waste gas, so that the vent hole drives the dust collection plate to swing under the action of air pressure until the vent hole is parallel to the air incoming direction; and oily particles on the dust collection plate are shaken off or scraped off.

Description

Technical Field

[0001] The utility model relates to the technical field of non-woven fabric equipment, in particular to a waste gas treatment device for non-woven fabric production. Background Art

[0002] Some waste gases may be generated during the production of non-woven fabrics, such as volatile organic compounds (VOCs), particulate matter, etc. The treatment of these waste gases usually requires the use of appropriate waste gas treatment equipment and technology to ensure that the emissions meet environmental protection standards.

[0003] In conjunction with publication number CN218190264U, publication date 2023-01-03, a waste gas purification device for non-woven fabric equipment is disclosed.

[0004] In the prior art including the above patent, the hot air blower is connected to the first main pipeline through the hot air pipe. When too many particles are attached to the static electrode of the electrostatic box, the static electrode needs to be cleaned. At this time, the exhaust control valve is closed so that the exhaust gas cannot flow into the electrostatic box through the heat exchange box and the first main pipeline. Then, the hot air blower of the heating box is started, and the hot air flows into the electrostatic box through the hot air pipe and the first main pipeline in turn, so that the temperature in the electrostatic box rises, and the particulate oily substances attached to the static electrode are heated and liquefied. The liquefied oily substances are collected in the oil receiving pan in the electrostatic box to clean the static electrode. The above technology uses hot air to heat and liquefy the particulate oily substances, which is convenient for entering the oil receiving pan for collection. However, after the oily substances are liquefied, they will slide along the surface of the static electrode. Due to the large viscosity of the oily substances, some of the liquefied oily substances will stay on the sliding path. The heat exchange box is equipped with a cooling system to cool the exhaust gas. After the cooled exhaust gas contacts the oily substances on the sliding path, the particulate oily substances will solidify again and stay on the surface of the static electrode. Utility Model Content

[0005] The utility model aims to provide a non-woven fabric production waste gas treatment device for solving the above-mentioned problems.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a non-woven fabric production waste gas treatment device, including a mounting shell and a discharge plate;

[0007] Dust collecting plates are rotatably arranged in a linear array in the mounting shell, and are provided with inclined ventilation holes. The dust collecting plates are swung by wind force to switch between mutually stacked contact and mutually obliquely parallel states;

[0008] Cleaning assembly including brush plate for scraping the dust collecting plate.

[0009] Preferably, the dust collecting plate is provided with a second protrusion on one side along the windward direction, and a first protrusion is provided on the corresponding side, and the ventilation hole extends from the first protrusion to the second protrusion.

[0010] Preferably, there is a folding point on the first raised portion.

[0011] Preferably, the brush plate is rotatably disposed on the discharge plate.

[0012] Preferably, a plurality of windward arc plates made of insulating material are provided on the windward side of the brush plate.

[0013] Preferably, the discharge plate is a honeycomb grid structure, and the brush plate intermittently conflicts with the discharge plate during rotation.

[0014] In the above technical scheme, the utility model provides a non-woven fabric production waste gas treatment device, which has the following beneficial effects: an inclined ventilation hole is opened on the dust collecting plate, and there is an angle between the ventilation hole and the incoming wind direction of the exhaust gas, so that the ventilation hole drives the dust collecting plate to swing under the action of wind pressure until the ventilation hole is parallel to the incoming wind direction. In this process, the oily particles on the dust collecting plate are shaken off or scraped off by the back and forth swinging of the dust collecting plate and the scraping of the brush plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0016] Figure 1 An overall three-dimensional schematic diagram provided for an embodiment of the utility model;

[0017] Figure 2 A schematic diagram of the cleaning assembly, discharge plate and dust collecting plate provided in an embodiment of the utility model;

[0018] Figure 3 A schematic cross-sectional view of a dust collecting plate provided in an embodiment of the utility model;

[0019] Figure 4 A schematic diagram of the hot air flow direction of the dust collecting plate provided in the embodiment of the utility model;

[0020] Figure 5 A schematic diagram of the cold wind flow direction of the dust collecting plate provided in an embodiment of the utility model.

[0021] Description of reference numerals:

[0022] 1. Discharge plate; 2. Dust collecting plate; 21. First protrusion; 22. Ventilation hole; 23. Second protrusion; 3. Cleaning assembly; 31. Windward arc plate; 32. Brush plate. DETAILED DESCRIPTION

[0023] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0024] like Figure 1-5 As shown, a non-woven fabric production waste gas treatment device includes a mounting shell and a discharge plate 1;

[0025] The dust collecting plate 2 is rotatably arranged in the mounting shell, and has inclined ventilation holes 22 thereon. The dust collecting plate 2 is switched between mutually stacked contact or mutually obliquely parallel to each other under the wind force;

[0026] The cleaning assembly 3 comprises a brush plate 32 for scraping the dust collecting plate 2 .

[0027] Specifically, the discharge plate 1 discharges the exhaust gas and ionizes the exhaust gas, and then the oily particles in the exhaust gas are adsorbed on the dust collecting plate 2. The dust collecting plates 2 are stacked and contacted with each other in the initial state. Figure 4 As shown, since the dust collecting plate 2 is provided with inclined ventilation holes 22, and the ventilation holes 22 are at an angle with the incoming wind direction of the exhaust gas, the exhaust gas gives a lift to the upper side of the ventilation holes 22 when passing through the ventilation holes 22, so that the ventilation holes 22 drive the dust collecting plate 2 to swing under the action of wind pressure until the ventilation holes 22 are parallel to the incoming wind direction. At this time, the multiple dust collecting plates 2 are parallel to each other, as shown in FIG. Figure 5 As shown, in this process, the oily particles on the dust collecting plate 2 are shaken off or scraped off by the back and forth swinging of the dust collecting plate 2 and the scraping of the brush plate 32.

[0028] In the above technology, an inclined ventilation hole 22 is provided on the dust collecting plate 2, and there is an angle between the ventilation hole 22 and the incoming wind direction of the exhaust gas, so that the ventilation hole 22 drives the dust collecting plate 2 to swing under the action of wind pressure until the ventilation hole 22 is parallel to the incoming wind direction. In this process, the oily particles on the dust collecting plate 2 are shaken off or scraped off by the back and forth swinging of the dust collecting plate 2 and the scraping of the brush plate 32.

[0029] As an embodiment further provided by the present invention, the dust collecting plate 2 is provided with a second protrusion 23 on one side along the windward direction, and a first protrusion 21 is provided on the corresponding side, and the ventilation hole 22 extends from the first protrusion 21 to the second protrusion 23 .

[0030] Specifically, when the dust collecting plate 2 needs to be cleaned, the exhaust gas channel is closed and heated air is introduced into the channel. The hot air contacts the dust collecting plate 2 along the windward direction. Since the hot air is lighter, the airflow direction in the channel is upward, so that the hot air contacts the second protrusion 23 along the ventilation hole 22. Figure 4 As shown, since the second raised portion 23 is arc-shaped, the hot air moves upward along the arc surface of the second raised portion 23. At this time, the wind speed on the arc surface is relatively large, and the air pressure is relatively low on the windward side, so that the wind pressure on the windward side pushes the multiple dust collecting plates 2 to a state of stacking each other. At this time, the multiple dust collecting plates 2 can be regarded as an approximate plane, which is convenient for the brush plate 32 to scrape and peel off the oily substance. During normal use, due to the cooling mechanism in the exhaust gas channel, the exhaust gas temperature is relatively low, and the cold exhaust gas flows downward, and will first contact the first raised portion 21, so that the wind speed at the arc surface of the first raised portion 21 is increased. At this time, the wind pressure at the first raised portion 21 is relatively small, and it swings slightly, and channels for exhaust gas to pass through appear between the multiple dust collecting plates 2, such as Figure 5 As shown, the exhaust gas bypasses the first protrusion 21 and continues to flow, thereby prolonging the contact between the exhaust gas and the dust collecting plate 2.

[0031] As another embodiment further provided by the present invention, there is a folding point on the first protruding portion 21 .

[0032] Specifically, when the oily particles are melted by heat, they will slide downward along the first raised portion 21 on the dust collecting plate 2. Due to the existence of the inflection point, the melted liquid will gather above the inflection point. After the oily liquid accumulates to a certain weight, it will cross the inflection point and fall downward, making the sliding path of the oil shorter and reducing the amount of oil remaining on the sliding path.

[0033] As another embodiment further provided by the present invention, a plurality of windward arc plates 31 made of plastic material are provided on the windward side of the brush plate 32 .

[0034] Specifically, the windward arc plate 31 rotates when pushed by wind, thereby driving the brush plate 32 to rotate on the windward side of the dust collecting plate 2 and scrape the oily particles, and the windward arc plate 31 is made of insulating material to avoid affecting the normal discharge of the discharge plate 1.

[0035] As another embodiment further provided by the present invention, the discharge plate 1 is a honeycomb grid structure, and the brush plate 32 intermittently conflicts with the discharge plate 1 during the rotation process.

[0036] Specifically, the honeycomb grid structure of the discharge plate 1 makes the discharge more uniform through the hexagonal structure of the honeycomb. At the same time, due to the structure of the grid, there is a certain distance between the discharge plate 1 and the dust collecting plate 2. Since the bristles on the brush plate 32 are elastic, during the contact process with the discharge plate 1, the bristles will intermittently release from the discharge plate 1 and the dust collecting plate 2, thereby continuously oscillating and shaking off the oily particles on the bristles.

[0037] Working principle: When the dust collecting plate 2 needs to be cleaned, the exhaust gas channel is closed and heated air is introduced into the channel. The hot air contacts the dust collecting plate 2 along the windward direction. Since the hot air is lighter, the airflow direction in the channel is upward, so that the hot air contacts the second protrusion 23 along the ventilation hole 22. Figure 4 As shown, since the second raised portion 23 is arc-shaped, the hot air moves upward along the arc surface of the second raised portion 23. At this time, the wind speed on the arc surface is relatively large, and the air pressure is relatively low on the windward side, so that the wind pressure on the windward side pushes the multiple dust collecting plates 2 to a state of stacking each other. At this time, the multiple dust collecting plates 2 can be regarded as an approximate plane, which is convenient for the brush plate 32 to scrape and peel off the oily substance, and when the oily particles are melted by heat, they will slide down along the first raised portion 21 on the dust collecting plate 2. Due to the existence of the inflection point, the melted liquid will gather The oily liquid accumulates above the inflection point, and after accumulating to a certain weight, it passes over the inflection point and falls downward, making the sliding path of the oil shorter and reducing the amount of oil remaining on the sliding path. During normal use, due to the cooling mechanism in the exhaust gas channel, the exhaust gas temperature is relatively low, and the cold exhaust gas flows downward and will first contact the first protrusion 21, so that the wind speed at the arc surface of the first protrusion 21 is increased. At this time, the wind pressure at the first protrusion 21 is relatively small, and a slight swing occurs. A channel for the exhaust gas to pass through appears between the multiple dust collecting plates 2, such as Figure 5 As shown, the exhaust gas bypasses the first protrusion 21 and continues to flow, thereby prolonging the contact between the exhaust gas and the dust collecting plate 2. The windward arc plate 31 rotates when pushed by the wind, thereby driving the brush plate 32 to rotate on the windward side of the dust collecting plate 2. Due to the structure of the grille, there is a certain distance between the discharge plate 1 and the dust collecting plate 2. Since the bristles on the brush plate 32 are elastic, during the contact with the discharge plate 1, the bristles will intermittently release from the discharge plate 1 and the dust collecting plate 2, thereby continuously oscillating to shake off the oily particles on the bristles.

[0038] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A non-woven fabric production waste gas treatment device, characterized in that: It comprises a mounting shell and a discharge plate (1); Dust collecting plates (2) are rotatably arranged in a linear array in a mounting shell, and are provided with inclined ventilation holes (22). The dust collecting plates (2) are swung by wind force to switch between mutually stacked contact and mutually obliquely parallel states; The cleaning assembly (3) comprises a brush plate (32) for scraping the dust collecting plate (2).

2. A non-woven fabric production waste gas treatment device according to claim 1, characterized in that: The dust collecting plate (2) is provided with a second protrusion (23) on one side along the windward direction, and a first protrusion (21) is provided on the side corresponding thereto, and the ventilation hole (22) extends along the first protrusion (21) towards the second protrusion (23).

3. The non-woven fabric production waste gas treatment device according to claim 2, characterized in that: There is a folding point on the first raised portion (21).

4. The non-woven fabric production waste gas treatment device according to claim 1, characterized in that: The brush plate (32) is rotatably arranged on the discharge plate (1).

5. The non-woven fabric production waste gas treatment device according to claim 4, characterized in that: A plurality of windward arc plates (31) made of insulating material are provided on the windward side of the brush plate (32).

6. The non-woven fabric production waste gas treatment device according to claim 1, characterized in that: The discharge plate (1) is a honeycomb grid structure, and the brush plate (32) intermittently contacts the discharge plate (1) during rotation.

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