An exhaust gas treatment device

Abstract

This utility model discloses a waste gas treatment device, which includes a support frame, a ventilation duct, and a waste gas treatment system. The ventilation duct is fixedly connected to the support frame. The waste gas treatment system includes a particle separator, an adsorption component, and a fan. The particle separator has a first air inlet and a first air outlet. The first air inlet is connected to the outside, and the first air outlet is connected to the ventilation duct. The adsorption component and the fan are located inside the ventilation duct. The waste gas treatment device, including the particle separator and the adsorption component, can separate most of the particulate matter in the waste gas containing particles. The adsorption component can adsorb residual particulate matter and / or harmful gases. Therefore, through separation and adsorption treatment, the waste gas meets emission standards, significantly improving the air environment of the workspace. Furthermore, the waste gas separated by the particle separator has a significantly reduced particulate matter content, thus greatly improving the adsorption efficiency of the adsorption component.

Description

Technical Field

[0001] This utility model relates to the field of waste gas treatment technology, and in particular to a waste gas treatment device. Background Technology

[0002] In the field of machining, metal workpieces (such as bearings) are usually processed by turning, milling, cutting, grinding, quenching and other processes. The medium is usually grease-like substances. During the quenching process, a large amount of waste gas is generated, and the waste gas contains a large number of oil fume particles, which will cause serious air pollution to the work space.

[0003] Existing waste gas treatment devices typically use adsorption materials for adsorption or high-voltage electric fields for collection and treatment. However, both adsorption and high-voltage electric field treatment methods have serious drawbacks: viscous oil fume particles quickly cover the surface of the adsorption material or electrode, significantly reducing the waste gas treatment efficiency.

[0004] Therefore, it is necessary to provide an exhaust gas treatment device to solve the above problems. Utility Model Content

[0005] An exhaust gas treatment device for treating exhaust gas containing particulate matter, comprising:

[0006] Ventilation ducts;

[0007] The exhaust gas treatment system includes a particulate separator, an adsorption component, and a fan. The particulate separator has a first air inlet and a first air outlet. The first air inlet is connected to the outside, and the first air outlet is connected to the ventilation duct. The adsorption component and the fan are located inside the ventilation duct.

[0008] In one embodiment, the particle separator is selected from any one of a cyclone separator, a gas-liquid separator, or a gas-solid separator.

[0009] In one embodiment, a flow guiding component is provided on the ventilation duct near the first air outlet.

[0010] In one embodiment, the flow guiding assembly includes one or more flow guiding plates.

[0011] In one embodiment, the deflector is tilted at a predetermined angle.

[0012] In one embodiment, the guide plate is provided with a first adsorption material.

[0013] In one embodiment, the adsorption assembly includes one or more adsorption units, and the adsorption unit is provided with a second adsorption material.

[0014] In one embodiment, the fan is positioned on the side of the adsorption assembly away from the particle separator.

[0015] In one embodiment, the fan has a second air outlet, which is equipped with a silencer.

[0016] In one embodiment, a bracket is also included, which is fixedly connected to the ventilation duct.

[0017] The aforementioned waste gas treatment device includes a particulate separator and an adsorption assembly. The particulate separator can separate most of the particulate matter in the waste gas containing particles, and the adsorption assembly can adsorb residual particulate matter and / or harmful gases. Therefore, through separation and adsorption treatment, the waste gas meets emission standards, significantly improving the air environment of the work area. Furthermore, the particulate matter content in the waste gas separated by the particulate separator is significantly reduced, thus greatly improving the adsorption efficiency of the adsorption assembly. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of a waste gas treatment device according to one embodiment.

[0019] Figure 2 This is a schematic diagram of the structure of a waste gas treatment device according to another embodiment.

[0020] Figure 3 This is a schematic diagram of the structure of an exhaust gas treatment device according to another embodiment. Detailed Implementation

[0021] To make the above-mentioned objectives, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0022] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly attached to the other element or there may be an intervening element. When an element is considered to be "connected" or "connected" to another element, it can be directly connected to the other element or there may be an intervening element. The terms "upper," "lower," "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0023] The waste gas treatment device will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0024] Please refer to Figure 1 , an exhaust gas treatment device of an embodiment, including a bracket 10, a ventilation pipe 20 and an exhaust gas treatment system.

[0025] The bracket 10 is used to fix the ventilation pipe 20. In this embodiment, the appearance of the bracket 10 is arranged in a "冂" shape.

[0026] It should be understood that the bracket 10 only serves to fix the ventilation pipe 20. When the ventilation pipe 20 is directly laid on the ground, the bracket 10 is unnecessary. In addition, the shape of the bracket 10 can also be a straight line, a curve or any other shape.

[0027] The ventilation pipe 20 is fixedly arranged on the bracket 10. A cavity is provided inside the ventilation pipe 20. The cavity is used to accommodate the adsorption component 32 and the fan 34 and allows the exhaust gas to pass through. The ventilation pipe 20 has good airtightness and can prevent the exhaust gas from escaping outward.

[0028] Optionally, the installation direction of the ventilation pipe 20 can be horizontal or vertical. In this embodiment, the ventilation pipe 20 is horizontally fixedly arranged on the bracket 10. In another embodiment, the ventilation pipe 20 is vertically arranged, and one end of it is fixedly arranged on the ground.

[0029] It should be understood that the cross-section of the ventilation pipe 20 can be rectangular, square, rhombic, circular or an irregular shape of the gas. In this embodiment, the cross-section of the ventilation pipe 20 is rectangular.

[0030] The exhaust gas treatment system includes a particle separator 31, an adsorption component 32 and a fan 34.

[0031] Specifically, the particle separator 31 is arranged at the front end of the ventilation pipe 20. The particle separator 31 can separate particulate matter by centrifugal force.

[0032] Optionally, the particle separator 31 includes but is not limited to a cyclone separator, a gas-liquid separator or a gas-solid separator. In this embodiment, the particle separator 31 is a cyclone separator.

[0033] Specifically, the cyclone separator includes a first air inlet 311, a separation section 312, a collection section 313, and a first air outlet 314. The first air inlet 311 is connected to the outside, allowing particulate-containing waste gas from the outside to enter the particulate separator 31 through the first air inlet 311. The separation section 312 has a circular inner cavity, and the first air inlet 311 communicates with the upper side of the circular inner cavity. When the particulate-containing waste gas enters the circular inner cavity through the first air inlet 311 at a predetermined speed, it moves spirally downward within the circular inner cavity. Under the action of centrifugal force, the particulate matter will adhere to the cavity wall of the circular inner cavity. The collection section 313 is located below the separation section 312. The liquid particulate matter adhering to the cavity wall of the circular inner cavity can collect in the collection section 313 under the action of gravity, thus facilitating collection and treatment. One end of the first air outlet 314 passes through the top of the circular inner cavity and is sealed to the ventilation pipe 20, while the other end is located inside the circular inner cavity and is at a predetermined distance from the top of the circular inner cavity. This allows the particulate waste gas to complete a full spiral downward movement within the circular inner cavity before it can enter the ventilation pipe 20 through the first air outlet 314, thereby significantly reducing the particulate content in the waste gas.

[0034] It is worth noting that the particulate waste gas generated during quenching is characterized by high temperature and high oil particle content, and therefore usually carries a flame. After the particulate waste gas is separated by the particulate separator 31, the content of particulate matter in the waste gas is greatly reduced. When its content is lower than the combustible threshold, the waste gas will not be able to continue to burn. Therefore, the particulate separator 31 also has a flame-arresting function, which can greatly reduce safety risks.

[0035] In this embodiment, the inner cavity of the collecting part 313 is conical, and the end of the collecting part 313 is connected to the container, thereby facilitating the collection of liquid grease.

[0036] It should be understood that the particulate matter can be solid particulate matter or liquid particulate matter. In this embodiment, the particulate matter is liquid oil fume particles.

[0037] In another implementation, please refer to Figure 2 The ventilation duct 20 is arranged perpendicularly to the first air outlet 314, and a flow guide component 33 is provided on the ventilation duct 20 near the first air outlet 314.

[0038] Specifically, the flow guiding component 33 includes one or more flow guiding plates. The exhaust gas entering the ventilation pipe 20 through the first air outlet 314 is deflected by the flow guiding component 33 and collides with the surface of the flow guiding component 33 and the pipe wall of the ventilation pipe 20. During the collision process, some particulate matter can adhere to the surface of the flow guiding component 33 and the pipe wall of the ventilation pipe 20, thereby further reducing the particulate matter content in the exhaust gas.

[0039] In this embodiment, the flow guiding component 33 includes a flow guiding plate that is inclined at a predetermined angle.

[0040] Preferably, the surface of the guide plate is provided with a first adsorption material, so that the guide plate can adsorb particulate matter in the exhaust gas, thereby further reducing the particulate content in the exhaust gas.

[0041] Optionally, the first absorbent material includes, but is not limited to, oil-absorbing felt, sponge, and other high-temperature resistant fibers.

[0042] The adsorption component 32 is detachably installed inside the ventilation duct 20. The edge of the adsorption component 32 is sealed to the ventilation duct 20. The adsorption component 32 includes one or more adsorption units 321. A second adsorption material is provided on the adsorption unit 321. The second adsorption material can adsorb residual particulate matter and / or harmful gases in the exhaust gas.

[0043] In this embodiment, there are three adsorption units 321, which can efficiently adsorb residual particulate matter and / or harmful gases in the exhaust gas.

[0044] Optionally, the adsorbent material includes, but is not limited to: oil-absorbing felt, activated carbon, zeolite powder, and graphite.

[0045] The fan 34 is located inside the ventilation duct 20. The fan 34 has a second air inlet and a second air outlet. The fan 34 is used to generate negative pressure inside the ventilation duct 20, so that the particulate waste gas can enter the particulate separator 31 through the first air inlet 311 at a predetermined speed under the action of negative pressure, and thus can move spirally downward inside the particulate separator 31.

[0046] In this embodiment, the fan 34 is located at the end of the ventilation duct 20, and the second air outlet passes through the ventilation duct 20 to connect with the outside, thereby allowing the exhaust gas treated by adsorption to be discharged to the outside. Since the exhaust gas flowing through this location has undergone separation and multiple adsorption treatments, the particulate matter content is extremely low. Therefore, the pollution of the fan 34 blades by particulate matter can be greatly reduced, thereby reducing the number of times the fan 34 needs to be cleaned and reducing the difficulty of cleaning.

[0047] It should be understood that the fan 34 can also be installed in other locations within the ventilation duct 20.

[0048] Preferably, an air collecting hood 341 is provided at the second air inlet. The edge of the air collecting hood 341 is sealed to the inner wall of the ventilation pipe 20. By providing the air collecting hood 341, the fan body 34 can be prevented from interfering with the airflow, thereby improving the working efficiency of the fan 34 and thus improving the waste gas collection efficiency.

[0049] In another implementation, please refer to Figure 3, a silencing device 35 is provided on the second air outlet. On the one hand, the silencing device 35 can significantly reduce the noise generated by the waste gas treatment device. On the other hand, the porous structure of the silencing module can significantly improve the heat dissipation effect, thereby significantly reducing the temperature of the ventilation pipe 20 and further reducing the safety risk.

[0050] In the illustrated embodiment, the second air outlet is arranged upward, and the silencing device 35 is arranged on the upper side of the ventilation pipe 20.

[0051] For the above waste gas treatment device, the waste gas treatment system includes a particle separator 31 and an adsorption component 32. The particle separator 31 can separate most of the particulate matter in the waste gas containing particles, and the adsorption component 32 can adsorb the remaining particulate matter and / or harmful gases. Therefore, through separation and adsorption treatment, the waste gas meets the emission standards, significantly improving the air environment of the working space. In addition, for the waste gas separated by the particle separator 31, the content of particulate matter is significantly reduced. Therefore, the adsorption efficiency of the adsorption component 3) can be significantly improved.

[0052] The following are specific embodiments. Embodiment

[0053] Please refer to Figure 1 , this embodiment provides a waste gas treatment device, which includes a bracket 10, a ventilation pipe 20 and a waste gas treatment system. The ventilation pipe 20 is fixedly connected to the bracket 10; the waste gas treatment system includes a particle separator 31, an adsorption component 32 and a fan 34. The particle separator 31 is provided with a first air inlet 311 and a first air outlet 314. The first air inlet 311 is connected to the outside, the first air outlet 314 is connected to the ventilation pipe 20, the adsorption component 32 is arranged in the ventilation pipe 20, and the fan 34 is arranged at the end of the ventilation pipe 20.

[0054] In this embodiment, the appearance of the bracket 10 is arranged in a "冂" shape. The particle separator 31 is a cyclone separator, and the adsorption component 32 includes three adsorption units 321.

[0055] For the above waste gas treatment device, the waste gas treatment system includes a particle separator 31 and an adsorption component 32. The particle separator 31 can separate most of the particulate matter in the waste gas containing particles, and the adsorption component 32 can adsorb the remaining particulate matter and / or harmful gases. Therefore, through separation and adsorption treatment, the waste gas meets the emission standards, significantly improving the air environment of the working space. In addition, for the waste gas separated by the particle separator 31, the content of particulate matter is significantly reduced. Therefore, the adsorption efficiency of the adsorption component 32 can be significantly improved. Embodiment

[0056] Please refer to Figure 2This embodiment provides an exhaust gas treatment device similar to the exhaust gas treatment device provided in Embodiment 1, except that: the ventilation pipe 20 is arranged vertically to the first air outlet 314, and a flow guiding component 33 is provided on the ventilation pipe 20 near the first air outlet 314.

[0057] In this embodiment, the flow guiding component 33 includes a flow guiding plate that is inclined at a predetermined angle, and the surface of the flow guiding plate is provided with an oil-absorbing felt.

[0058] In the aforementioned waste gas treatment device, under the guiding effect of the flow guiding component 33, the waste gas direction is deflected and collides with the surface of the flow guiding component 33 and the pipe wall of the ventilation pipe 20. During the collision process, some particulate matter can adhere to the surface of the flow guiding component 33 and the pipe wall of the ventilation pipe 20, thereby further reducing the particulate matter content in the waste gas. Example

[0059] Please see Figure 3 This embodiment provides an exhaust gas treatment device that is similar to the exhaust gas treatment device provided in Embodiment 2, except that a silencer 35 is provided on the second air outlet.

[0060] The aforementioned exhaust gas treatment device is equipped with a silencer 35 at the second air outlet. On the one hand, this can significantly reduce the noise generated by the exhaust gas treatment device. On the other hand, the porous structure of the silencer module can significantly improve the heat dissipation effect, thereby significantly reducing the temperature of the ventilation pipe 20 and thus reducing safety risks.

[0061] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An exhaust gas treatment device for treating particulate-containing exhaust gas, characterized by, include: Ventilation ducts; The exhaust gas treatment system includes a particulate separator, an adsorption component, and a fan. The particulate separator has a first air inlet and a first air outlet. The first air inlet is connected to the outside, and the first air outlet is connected to the ventilation duct. The adsorption component and the fan are located inside the ventilation duct.

2. The exhaust treatment device of claim 1, wherein, The particle separator is selected from any one of a cyclone separator, a gas-liquid separator, or a gas-solid separator.

3. The exhaust treatment device of claim 2, wherein, A flow guiding component is provided on the ventilation duct near the first air outlet.

4. The exhaust treatment device of claim 3, wherein, The flow guiding assembly includes one or more flow guiding plates.

5. The exhaust treatment device of claim 4, wherein, The guide plate is tilted at a predetermined angle.

6. The exhaust treatment device of claim 5, wherein, The guide plate is provided with a first adsorption material.

7. The exhaust treatment device of claim 1, wherein, The adsorption assembly includes one or more adsorption units, and the adsorption unit is provided with a second adsorption material.

8. The exhaust treatment device of claim 1, wherein, The fan is positioned on the side of the adsorption assembly away from the particle separator.

9. The exhaust treatment device of claim 8, wherein, The fan has a second air outlet, and the second air outlet is equipped with a silencer.

10. The exhaust treatment device of any of claims 1-9, wherein, It also includes a bracket, which is fixedly connected to the ventilation duct.

Images