Oil mist waste gas treatment equipment

Abstract

The utility model discloses oil mist waste gas treatment equipment, which comprises an oil mist filter main body, an oil mist inlet chamber is arranged at the lower part of the oil mist filter main body, a first filter chamber and a second filter chamber are arranged above the oil mist inlet chamber, a negative pressure chamber is arranged between the first filter chamber and the second filter chamber, and the negative pressure chamber is communicated with the first filter chamber and the second filter chamber. The first filtering chamber and the negative pressure chamber are both of an up-down through structure, a first-stage filtering module group is arranged in the first filtering chamber, a second-stage filtering module group is arranged above the first-stage filtering module group, a third-stage filtering module group is arranged in the second filtering chamber, a gas collecting chamber is arranged above the second filtering chamber, and the negative pressure chamber is arranged above the gas collecting chamber. The gas collection chamber is communicated with the second filter chamber, and an oil mist purification outlet is formed in the upper part of the gas collection chamber. According to the utility model, purified gas is guided to be exhausted in a concentrated manner, so that the turbulence and backflow phenomena of gas flow are reduced, meanwhile, the noise generated during the operation of equipment is reduced, and a better working environment is provided for operators.

Description

Technical Field

[0001] The utility model relates to the technical field of oil mist filters, in particular to oil mist exhaust gas treatment equipment. Background Art

[0002] Oil mist filters are devices used to remove oil mist from the air. They are often used in industrial environments, particularly where there is a large amount of metalworking equipment, such as lathes, milling machines, and grinders. These machines generate large amounts of oil mist during operation, and the oil mist filter's function is to capture and remove this mist, ensuring a clean and safe working environment.

[0003] Existing oil mist filters can create turbulent airflow and backflow within the equipment after purification. This reduces filtration efficiency because the backflowing gas can re-enter the filtration system, increasing the strain on the filters and affecting overall purification effectiveness. Direct exhaust through the exhaust port can also generate significant airflow noise. This noise not only affects the operator's working environment but can also cause hearing loss and other health problems for workers who are exposed to high noise levels for a long time. Utility Model Content

[0004] The technical problem to be solved by the utility model is to provide an oil mist exhaust gas treatment device, which guides the purified gas to be discharged in a centralized manner, reduces the turbulence and backflow of the air flow, and at the same time reduces the noise generated when the equipment is running, providing a better working environment for the operator.

[0005] In order to solve the above problems, the utility model provides an oil mist exhaust gas treatment equipment, including an oil mist filter body, wherein an oil mist inlet chamber is provided at the lower portion of the oil mist filter body, a first filter chamber and a second filter chamber are provided above the oil mist inlet chamber, a negative pressure chamber is provided between the first filter chamber and the second filter chamber, and the first filter chamber and the negative pressure chamber are both through-type structures, the oil mist filter body is a rectangular frame structure, an oil mist exhaust gas inlet is provided on one side of the oil mist inlet chamber, an oil outlet is provided at the bottom of the oil mist inlet chamber, a first-level filter module group is provided in the first filter chamber, a second-level filter module group is provided above the first-level filter module group, a third-level filter module group is provided in the second filter chamber, an air collecting chamber is provided above the second filter chamber, the air collecting chamber is communicated with the second filter chamber, and an oil mist purification outlet is provided above the air collecting chamber.

[0006] The size of the oil mist purification outlet is smaller than the upper opening of the second filter chamber. The oil mist purification outlet is connected to the second filter chamber via a guide side wall, and the gas collecting chamber is arranged in the guide side wall.

[0007] The first-stage filter module group, the second-stage filter module group and the third-stage filter module group are all drawer structures.

[0008] A first mounting rod and a second mounting rod are provided in the first filter chamber, the first-stage filter module group is slidably set on the first mounting rod, and the second-stage filter module group is slidably set on the second mounting rod; a third mounting rod is provided in the second filter chamber, and the tertiary filter module group is slidably set on the third mounting rod.

[0009] A fan assembly is provided in the negative pressure chamber.

[0010] A pressure differential gauge is also provided on the outer wall of the negative pressure chamber.

[0011] The fan assembly includes a horizontal centrifugal fan, a suction hood is provided at the lower end of the horizontal centrifugal fan, a wind guide plate is provided on the outer side of the suction hood, and a monitoring module is also provided on one side of the horizontal centrifugal fan.

[0012] The secondary filter module group adopts fine filter spinning material.

[0013] The primary filter module group and the tertiary filter module group adopt HEDA filter elements.

[0014] An electric control box is provided on the outer wall of one side of the oil mist filter body.

[0015] During operation, the present invention begins by introducing oil mist-laden exhaust gas into the device through the oil mist exhaust inlet on one side of the oil mist inlet chamber. From there, the exhaust gas enters the first filter chamber, where the primary filter module performs an initial filter to remove larger oil mist particles. The filtered gas then ascends and enters the secondary filter module, which further removes smaller oil mist particles. At this stage, fine particles in the gas are further captured and separated. The filtered gas then passes through a negative pressure chamber, where the negative pressure generated by a centrifugal fan ensures smooth passage through each filter module. The pressure differential between the inside and outside of the negative pressure chamber is monitored in real time by a differential pressure gauge on the outer wall, ensuring the stability of the negative pressure environment. Under the influence of the negative pressure, the gas then enters the second filter chamber, where the tertiary filter module performs deep filtration. At this stage, the final fraction of fine particles in the gas is thoroughly captured and separated, ensuring that the gas meets the required purification requirements. The purified gas then enters the gas collection chamber, located above the second filter chamber and connected to the second filter chamber via a guide wall. The gas collection chamber effectively concentrates the purified gas flow, ensuring that the exhaust gas meets environmental standards. The oil separated during the filtration process is discharged through the oil outlet at the bottom of the oil mist chamber, which is convenient for oil recovery and treatment.

[0016] The beneficial effects brought by the utility model are:

[0017] The gas collecting chamber guides the purified gas to be discharged in a centralized manner, which reduces the turbulence and backflow of the air flow and improves the overall efficiency of the filtration system.

[0018] The air collecting chamber has a certain effect of buffering and absorbing airflow noise, reducing the noise generated when the equipment is running and providing a better working environment for operators.

[0019] The utility model adopts three-stage filter element oil mist separation technology to reduce oil consumption and secondary pollution. The first and second stage filter elements can be disassembled and washed and can be recycled many times, and the filter elements can be replaced quickly and conveniently. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural diagram of the present utility model.

[0021] Figure 2 It is a cross-sectional view of the present utility model.

[0022] Figure 3 It is a side view of the present utility model.

[0023] In the figure: 1. Filter body; 2. Oil mist inlet chamber; 3. First filter chamber; 4. Second filter chamber; 5. Negative pressure chamber; 6. Oil mist exhaust inlet; 7. Oil outlet; 8. Primary filter module group; 9. Secondary filter module group; 10. Tertiary filter module group; 11. Gas collecting chamber; 12. Oil mist purification outlet; 13. Guide side wall; 14. First mounting rod; 15. Second mounting rod; 16. Third mounting rod; 17. Fan assembly; 18. Differential pressure gauge; 19. Horizontal centrifugal fan; 20. Suction hood; 21. Air guide plate; 22. Monitoring module; 23. Electric control box. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0025] according to Figure 1 and Figure 2As shown, the present invention provides an oil mist exhaust gas treatment device, comprising an oil mist filter body 1, with an oil mist inlet chamber 2 provided at the bottom of the oil mist filter body 1, a first filter chamber 3 and a second filter chamber 4 provided above the oil mist inlet chamber 2, and a negative pressure chamber 5 provided between the first filter chamber 3 and the second filter chamber 4. Both the first filter chamber 3 and the negative pressure chamber 5 are vertically connected. The entire oil mist filter body 1 has a rectangular frame structure, which is compact and has high space utilization. An oil mist exhaust gas inlet 6 is provided on one side of the oil mist inlet chamber 2 for introducing exhaust gas containing oil mist; an oil outlet 7 is provided at the bottom of the oil mist inlet chamber 2 for discharging the oil collected after filtration, ensuring smooth liquid discharge during the oil mist separation process. The first filter chamber 3 houses a primary filter module group 8, responsible for initially filtering larger oil mist particles. Above this group is a secondary filter module group 9, employing fine-grained filter material to further remove smaller oil mist particles. The second filter chamber 4 houses a tertiary filter module group 10, employing a high-efficiency HEDA filter element for deep filtration, ensuring the complete removal of fine particles from the oil mist exhaust. Above this second filter chamber 4 is a gas collection chamber 11, which communicates with the second filter chamber 4 and collects and directs the purified gas. Above this gas collection chamber 11 is an oil mist purification outlet 12, through which the purified gas is discharged, ensuring that the exhaust gas meets environmental standards.

[0026] The oil mist purification outlet 12 is smaller than the upper opening of the second filter chamber 4, effectively concentrating the flow of purified gas. The oil mist purification outlet 12 and the second filter chamber 4 are connected by a guide sidewall 13, which guides and concentrates the flow of purified gas, ensuring smooth entry into the oil mist purification outlet 12. Through rational airflow guidance and gas collection structures, the entire oil mist exhaust gas treatment system operates more efficiently, ensuring that the purified gas meets environmental standards and extending the service life of the equipment.

[0027] The primary filter module group 8, the secondary filter module group 9, and the tertiary filter module group 10 are all drawer structures, which are easy to disassemble, replace, and maintain. Specifically, a first mounting rod 14 and a second mounting rod 15 are provided in the first filter chamber 3. The primary filter module group 8 is slidably mounted on the first mounting rod 14, and the secondary filter module group 9 is slidably mounted on the second mounting rod 15. In the second filter chamber 4, a third mounting rod 16 is provided, and the tertiary filter module group 10 is slidably mounted on the third mounting rod 16. Through this sliding installation method, the filter module group can be easily pulled out or pushed in, simplifying the maintenance and replacement process. By providing different mounting rods in each filter chamber, it is ensured that the filter module groups at each level can be independently operated and maintained, further improving the flexibility of the equipment.

[0028] The negative pressure chamber 5 is equipped with a fan assembly 17, which includes a horizontal centrifugal fan 19. The lower end of the horizontal centrifugal fan 19 is equipped with an air suction hood 20, and the outer side of the air suction hood 20 is equipped with an air guide plate 21 to ensure smoother and more efficient air flow. A monitoring module 22 is also provided on one side of the horizontal centrifugal fan 19. This module can monitor the operating status and performance parameters of the fan in real time, ensuring that the fan operates under optimal conditions and provides a stable negative pressure environment. In addition, a pressure differential gauge 18 is provided on the outer wall of the negative pressure chamber 5 to monitor the pressure difference between the inside and outside of the chamber, helping operators to understand the operation of the filtration system in real time.

[0029] The secondary filter module 9 utilizes a fine-grained filter material with high-efficiency particle capture, effectively filtering out smaller oil mist particles and enhancing overall filtration performance. The primary and tertiary filter modules 8 and 10 utilize HEDA filter elements, renowned for their high filtration performance and long service life, providing superior oil mist separation in both the primary and final filtration stages.

[0030] according to Figure 3 As shown, an electrical control box 23 is provided on the outer wall of one side of the oil mist filter body 1. The electrical control box 23 is used to centrally manage and control the electrical equipment and operating parameters of the entire oil mist filtration system. Through the electrical control box 23, the operator can conveniently monitor and adjust the various functions of the filtration equipment to ensure that it operates in the best condition.

[0031] When the present invention is in use, oil mist-containing exhaust gas first enters the device through the oil mist exhaust gas inlet 6 on one side of the oil mist inlet chamber 2. From there, the exhaust gas enters the first filter chamber 3. The primary filter module group 8 is responsible for initially filtering out larger particles of oil mist. The initially filtered gas continues to rise and enters the secondary filter module group 9, which further removes smaller particles of oil mist. At this stage, fine particles in the gas are further captured and separated. The filtered gas passes through the negative pressure chamber 5. The negative pressure generated by the centrifugal fan ensures that the gas can pass smoothly through each level of the filter modules. The pressure differential between the inside and outside of the negative pressure chamber 5 is monitored in real time by a pressure differential gauge 18 on the outer wall to ensure the stability of the negative pressure environment. Under negative pressure, the gas enters the second filter chamber 4, where the three-stage filter module assembly 10 performs deep filtration. At this stage, the last remaining particles in the gas are thoroughly captured and separated, ensuring that the gas meets purification requirements. The purified gas then enters the gas collection chamber 11, located above the second filter chamber 4 and connected to the second filter chamber 4 via a guide sidewall 13. Gas collection chamber 11 effectively concentrates the purified gas flow, ensuring that the exhaust gas meets environmental standards. The oil separated during the filtration process is discharged through the oil outlet 7 at the bottom of the oil mist inlet chamber 2, facilitating its recovery and disposal.

[0032] The beneficial effects brought by the utility model are:

[0033] The gas collecting chamber guides the purified gas to be discharged in a centralized manner, which reduces the turbulence and backflow of the air flow and improves the overall efficiency of the filtration system.

[0034] The air collecting chamber has a certain effect of buffering and absorbing airflow noise, reducing the noise generated when the equipment is running and providing a better working environment for operators.

[0035] The utility model adopts three-stage filter element oil mist separation technology to reduce oil consumption and secondary pollution. The first and second stage filter elements can be disassembled and washed and can be recycled many times, and the filter elements can be replaced quickly and conveniently.

[0036] The above description is only a preferred embodiment of the present invention. Therefore, any equivalent changes or modifications made according to the structure, features and principles described in the scope of the present invention patent application are included in the scope of the present invention patent application.

Claims

1. An oil mist exhaust gas treatment device, comprising an oil mist filter body, an oil mist inlet chamber provided at the lower portion of the oil mist filter body, a first filter chamber and a second filter chamber provided above the oil mist inlet chamber, a negative pressure chamber provided between the first filter chamber and the second filter chamber, the first filter chamber and the negative pressure chamber both being vertically through-continuous structures, characterized in that: The oil mist filter body is a rectangular frame structure, an oil mist exhaust inlet is provided on one side of the oil mist inlet chamber, an oil outlet is provided at the bottom of the oil mist inlet chamber, a first-stage filter module group is provided in the first filter chamber, a second-stage filter module group is provided above the first-stage filter module group, a third-stage filter module group is provided in the second filter chamber, an air collecting chamber is provided above the second filter chamber, the air collecting chamber is communicated with the second filter chamber, and an oil mist purification outlet is provided above the air collecting chamber; A fan assembly is provided in the negative pressure chamber; The fan assembly includes a horizontal centrifugal fan, a suction hood is provided at the lower end of the horizontal centrifugal fan, a wind guide plate is provided on the outer side of the suction hood, and a monitoring module is also provided on one side of the horizontal centrifugal fan.

2. The oil mist exhaust gas treatment equipment according to claim 1, characterized in that: The size of the oil mist purification outlet is smaller than the upper opening of the second filter chamber. The oil mist purification outlet is connected to the second filter chamber via a guide side wall, and the gas collecting chamber is arranged in the guide side wall.

3. The oil mist exhaust gas treatment equipment according to claim 1, characterized in that: The first-stage filter module group, the second-stage filter module group and the third-stage filter module group are all drawer structures.

4. The oil mist exhaust gas treatment equipment according to claim 1, characterized in that: A first mounting rod and a second mounting rod are provided in the first filter chamber, the first-stage filter module group is slidably set on the first mounting rod, and the second-stage filter module group is slidably set on the second mounting rod; a third mounting rod is provided in the second filter chamber, and the tertiary filter module group is slidably set on the third mounting rod.

5. The oil mist exhaust gas treatment equipment according to claim 1, characterized in that: A pressure differential gauge is also provided on the outer wall of the negative pressure chamber.

6. The oil mist exhaust gas treatment equipment according to claim 1, characterized in that: The secondary filter module group adopts fine filter spinning material.

7. The oil mist exhaust gas treatment equipment according to claim 1, characterized in that: The primary filter module group and the tertiary filter module group adopt HEDA filter elements.

8. The oil mist exhaust gas treatment equipment according to claim 1, characterized in that: An electric control box is provided on the outer wall of one side of the oil mist filter body.

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