Filter for organic waste gas treatment

Abstract

The utility model discloses a filter for organic waste gas treatment, which comprises a water washing tower and a pipeline fan, a pipeline is connected between the output end of the water washing tower and the input end of the pipeline fan, the middle section of the pipeline is communicated with a filter body, and the top end in the filter body is fixedly connected with a fan cover. An air uniformizing plate is fixedly assembled at the bottom end of the fan cover, and two sets of connecting bases are arranged below the air uniformizing plate. According to the filter for organic waste gas treatment, the driving motor is arranged, the automatic scraping mechanisms are arranged below the first demisting net and the second demisting net, the single-head scraping plate is driven to reciprocate on the demisting nets, attached entrainment and particulate matter are automatically scraped, accumulation of the entrainment and the particulate matter is effectively prevented through the automatic scraping mechanisms, and the filtering efficiency is improved. The reduction of the filtering efficiency and the potential damage to the fan impeller are avoided, the continuous and efficient operation of the filter is ensured through regular automatic cleaning, and the problem that the filtering efficiency of the demisting net is reduced due to entrainment accumulation is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of organic waste gas treatment, in particular to a filter for organic waste gas treatment. Background Art

[0002] Incineration of organic waste gas is an effective method for treating harmful organic matter in industrial emissions. In this process, the waste gas is introduced into a water scrubber for preliminary treatment to remove some pollutants and cool the flue gas. However, even after the treatment of the water scrubber, the high-speed flue gas will still carry some mist and particles. These tiny particles and droplets will enter the subsequent treatment system, such as duct fans, with the flue gas. Under long-term operation, these mist and particles may accumulate on the fan impeller, resulting in a decrease in fan efficiency and even damage to the impeller, affecting the stable operation and treatment efficiency of the entire system. Therefore, filters are used to intercept mist and particles to protect the fan impeller from damage.

[0003] Although the filters for treating organic waste gas currently on the market can intercept the mist and particles in the flue gas to a certain extent, they still have significant defects. The main problem is the accumulation of mist and particles on the demisting net. As time goes by, the accumulation on the filter net increases, which not only reduces the filtration efficiency, but also increases the resistance of the system, resulting in increased fan load and energy consumption. Existing solutions mostly rely on regular manual cleaning, which not only increases maintenance costs, but also may reduce production efficiency due to incomplete cleaning or frequent shutdowns.

[0004] Therefore, there is an urgent need for a filter for treating organic waste gas to solve the technical defects proposed in the above-mentioned technology. Utility Model Content

[0005] The utility model aims to provide a filter for treating organic waste gas, so as to solve the problem of reduced filtering efficiency caused by accumulation of mist and particles in the demisting net proposed in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a filter for treating organic waste gas, comprising a water washing tower and a pipeline fan, a pipeline is connected between the output end of the water washing tower and the input end of the pipeline fan, the middle section of the pipeline is connected to the filter body, the top of the filter body is fixedly connected to a wind hood, the bottom of the wind hood is fixedly equipped with an air distribution plate, two groups of connecting seats are arranged below the air distribution plate, the connecting seats are respectively equipped with a first demisting net and a second demisting net, the bottom ends of the first demisting net and the second demisting net are both provided with an automatic scraping mechanism for scraping off mist and particulate matter, the automatic scraping mechanism comprises a driving motor fixedly assembled behind the inner wall of the filter body, a group of linear screws are movably assembled on both sides of the bottom end of the connecting seat, the outside of the linear screws are sleeved with threaded blocks, the bottom ends of the threaded blocks are respectively fixedly connected to limiting seats, a single-head scraper is transversely fixed between the limiting seats, and the driving shaft of the driving motor and the two groups of linear screws are respectively connected through a transmission wheel and a transmission belt.

[0007] Preferably, the single-head scraper is located below the first demisting net and the second demisting net respectively, and the scraping side of the single-head scraper is in contact with the second demisting net and the first demisting net.

[0008] Preferably, limiting grooves are respectively provided on the connection sides of the inner wall of the connecting seat and the first and second demisting nets, and the side frames of the first and second demisting nets are respectively covered with U-shaped rubber parts, and hidden balls are embedded in the U-shaped rubber parts, and the hidden balls and the limiting grooves form a rolling connection.

[0009] Preferably, the linear screws are provided in two groups, and the two groups of linear screws are arranged in parallel and have the same external thread direction.

[0010] Preferably, the vertical gap between the first demisting net and the second demisting net is greater than the thickness of the single-head scraper, and the length of the single-head scraper is greater than the first demisting net and the second demisting net.

[0011] Preferably, a group of nozzles are installed at each of the four corners of the bottom of the wind hood, each group of nozzles faces the wind equalizing plate, a guide plate is installed at the bottom end of the filter body, a collection box is provided on the right side of the outer wall of the filter body, and the guide plate is inclined toward the collection box.

[0012] Preferably, a front door panel that can be opened for maintenance is installed at the front end of the filter body.

[0013] Compared with the prior art, the utility model has the following beneficial effects: the filter for treating organic waste gas not only realizes regular automatic cleaning, prevents the accumulation of mist and particulate matter, avoids the decrease of filtration efficiency and potential damage to the fan impeller, realizes the dilution of possible blockages at the wind plate, effectively collects and treats waste liquid, but also ensures that the replacement and maintenance process of the demisting net is smooth and stable;

[0014] (1) A drive motor, a transmission wheel and a transmission belt, a linear screw, a threaded block, a single-head scraper, a first demisting net, and a second demisting net are provided. When the flue gas treated by the water scrubber flows into the filter body through the pipeline, it will first encounter the first demisting net, and then flow through the second demisting net. After double demisting, the mist and particulate matter carried in the flue gas are removed. An automatic scraping mechanism is provided under the first demisting net and the second demisting net. The drive shaft of the drive motor transmits torque to the two sets of linear screws through the transmission wheel and the transmission belt, respectively, so that the threaded block moves, and drives the single-head scraper to move back and forth on the demisting net, automatically scraping off the attached mist and particulate matter. The automatic scraping mechanism effectively prevents the accumulation of mist and particulate matter, avoids the decrease of filtration efficiency and the potential damage of the fan impeller, and regular automatic cleaning ensures the continuous and efficient operation of the filter;

[0015] (2) The filter is provided with nozzles, a hood, an air distribution plate, a guide plate, and a collection box. The four sets of nozzles at the bottom of the hood are used to spray dilute sulfuric acid at regular intervals to dilute the blockages that may appear at the air distribution plate. After the blockages are diluted, they flow to the guide plate at the bottom of the filter body, and finally flow to the collection box through the waste liquid to be discharged, ensuring unobstructed flue gas flow, thereby maintaining the filtration efficiency of the filter and the normal operation of the fan. Through the cooperation of the guide plate and the collection box, the treated waste liquid can be effectively collected and treated, reducing the risk of environmental pollution;

[0016] (3) By providing a U-shaped rubber part and a hidden ball bearing, when the first and second defogger nets need to be replaced or cleaned, the operator can open the front door panel and easily pull out the defogger nets through the drawer-type installation structure. The U-shaped rubber part wrapped around the edge of the defogger net increases the sealing performance. At the same time, the setting of the hidden ball bearing reduces the resistance during pulling, ensuring that the replacement and maintenance process of the defogger nets is smooth and stable, providing convenience for maintenance personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a front view cross-sectional structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the front cross-sectional structure of the filter body of the utility model;

[0019] Figure 3 This is a schematic diagram of the single-head scraper structure of the utility model when viewed from above;

[0020] Figure 4 This is a schematic diagram of the three-dimensional structure of the U-shaped rubber member of the utility model;

[0021] Figure 5 This is a schematic diagram of the nozzle installation position of the utility model.

[0022] In the figure: 1. water washing tower; 2. pipeline; 3. filter body; 4. front door panel; 5. pipeline fan; 6. wind hood; 7. air distribution plate; 8. connecting seat; 9. single-head scraper; 10. limit seat; 11. limit groove; 12. second demisting net; 13. U-shaped rubber part; 14. hidden ball bearing; 15. collecting box; 16. drainage plate; 17. threaded block; 18. linear screw; 19. transmission wheel and transmission belt; 20. driving motor; 21. nozzle; 22. first demisting net. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] Example 1: Please refer to Figure 1-5 A filter for treating organic waste gas comprises a water washing tower 1 and a pipeline fan 5, wherein a pipeline 2 is connected between the output end of the water washing tower 1 and the input end of the pipeline fan 5, a filter body 3 is connected to the middle section of the pipeline 2, a wind hood 6 is fixedly connected to the top of the filter body 3, a wind hood 6 is fixedly installed at the bottom end of the wind hood 6, two groups of connecting seats 8 are arranged below the wind balancing plate 7, a first demisting net 22 and a second demisting net 12 are respectively installed at the connecting seats 8, an automatic scraping mechanism for scraping off mist and particulate matter is arranged at the bottom ends of the first demisting net 22 and the second demisting net 12, the automatic scraping mechanism comprises a driving motor 20 fixedly installed behind the inner wall of the filter body 3, a group of linear screws 18 are movably installed on both sides of the bottom end of the connecting seat 8, and a threaded block 17 is sleeved on the outside of the linear screw 18 , the bottom ends of the threaded blocks 17 are respectively fixedly connected to the limited seats 10, and a single-head scraper 9 is transversely fixed between the limited seats 10. The driving shaft of the drive motor 20 and the two sets of linear screws 18 are respectively connected through a transmission wheel and a transmission belt 19. The single-head scraper 9 is respectively located below the first demisting net 22 and the second demisting net 12. The scraping side of the single-head scraper 9 fits the second demisting net 12 and the first demisting net 22. Two groups of linear screws 18 are provided, and the two groups of linear screws 18 are arranged in parallel and have the same external thread direction. The single-head scraper 9 and the limited seat 10 are connected by screws, and the single-head scraper 9 and the limited seat 10 are detachable. The vertical gap between the first demisting net 22 and the second demisting net 12 is greater than the thickness of the single-head scraper 9, and the length of the single-head scraper 9 is greater than the first demisting net 22 and the second demisting net 12.

[0025] Specifically, Figure 1 , Figure 2 and Figure 3As shown, automatic scraping mechanisms are provided under the first demisting net 22 and the second demisting net 12. The driving shaft of the driving motor 20 transmits torque to the two sets of linear screws 18 through the transmission wheel and the transmission belt 19, respectively, so that the threaded block 17 moves, driving the single-head scraper 9 to move back and forth on the demisting net, automatically scraping off the attached mist and particulate matter.

[0026] Embodiment 2: A group of nozzles 21 are installed at each of the four corners of the bottom of the wind shield 6, and each group of nozzles 21 faces the wind balancing plate 7. A guide plate 16 is installed at the bottom end of the filter body 3. A collection box 15 is provided on the right side of the outer wall of the filter body 3, and the guide plate 16 is inclined toward the collection box 15;

[0027] Specifically, Figure 1 , Figure 2 and Figure 4 As shown, the four groups of nozzles 21 at the bottom of the wind hood 6 are used to spray dilute sulfuric acid at a regular interval to dilute the blockage that may appear at the wind equalizing plate 7. After being diluted, the blockage flows to the guide plate 16 at the bottom of the filter body 3, and finally flows to the collection box 15 through the waste liquid to be discharged, ensuring unobstructed flue gas flow, thereby maintaining the filtering efficiency of the filter and the normal operation of the fan.

[0028] Embodiment 3: The inner wall of the connection seat 8 and the connection side of the first demisting net 22 and the second demisting net 12 are respectively provided with a limiting groove 11, and the first demisting net 22 and the second demisting net 12 are respectively covered with U-shaped rubber parts 13 on both sides of the frame, and the U-shaped rubber parts 13 are embedded with hidden balls 14, and the hidden balls 14 are connected with the limiting groove 11 in a rolling manner. The front end of the filter body 3 is installed with a front door panel 4 that can be opened for maintenance;

[0029] Specifically, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, when the first demisting net 22 and the second demisting net 12 need to be replaced or cleaned, the operator can open the front door panel 4 and easily pull out the demisting net through the drawer-type installation structure. The U-shaped rubber part 13 wrapped at the edge of the demisting net increases the sealing performance. At the same time, the setting of the hidden ball 14 reduces the resistance during pulling, ensuring that the replacement and maintenance process of the demisting net is smooth and stable.

[0030] Working principle: When the flue gas treated by the water scrubber 1 flows into the filter body 3 through the pipe 2, it will first encounter the first demisting net 22, and then flow through the second demisting net 12. After double demisting, the mist and particulate matter carried in the flue gas are removed. Under the negative pressure suction action of the duct fan 5, the cleaner gas after demisting enters the high-speed rotating fan blades and is then discharged outward, playing a filtering role and protecting the fan blades from chemical damage.

[0031] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. A filter for treating organic waste gas, comprising a water scrubber (1) and a duct fan (5), characterized in that: A pipeline (2) is connected between the output end of the water washing tower (1) and the input end of the pipeline fan (5); the middle section of the pipeline (2) is connected to a filter body (3); a wind hood (6) is fixedly connected to the top of the filter body (3); a wind hood (7) is fixedly installed at the bottom of the wind hood (6); two groups of connecting seats (8) are arranged below the wind hood (7); a first demisting net (22) and a second demisting net (12) are respectively installed at the connecting seats (8); and automatic scraping mechanisms for scraping off mist and particulate matter are arranged at the bottom of the first demisting net (22) and the second demisting net (12); The automatic scraping mechanism comprises a driving motor (20) fixedly mounted behind the inner wall of the filter body (3); a group of linear screws (18) are movably mounted on both sides of the bottom end of the connecting seat (8); the outside of the linear screws (18) are sleeved with thread blocks (17); the bottom ends of the thread blocks (17) are respectively fixedly connected to limit seats (10); a single-head scraper (9) is transversely fixed between the limit seats (10); and the driving shaft of the driving motor (20) and the two groups of linear screws (18) are respectively connected via a transmission wheel and a transmission belt (19).

2. The filter for treating organic waste gas according to claim 1, characterized in that: The single-head scraper (9) is located below the first demisting net (22) and the second demisting net (12), respectively, and the scraping side of the single-head scraper (9) is in contact with the second demisting net (12) and the first demisting net (22).

3. The filter for treating organic waste gas according to claim 1, characterized in that: Limiting grooves (11) are respectively provided on the inner wall of the connecting seat (8) and the connecting sides of the first demisting net (22) and the second demisting net (12); the first demisting net (22) and the second demisting net (12) are respectively covered with U-shaped rubber parts (13) at the two side frames; hidden balls (14) are embedded in the U-shaped rubber parts (13); and the hidden balls (14) and the limiting grooves (11) are in rolling connection.

4. The filter for treating organic waste gas according to claim 1, characterized in that: The linear screws (18) are provided in two groups, and the two groups of linear screws (18) are arranged in parallel and have the same external thread direction.

5. The filter for treating organic waste gas according to claim 1, characterized in that: The single-head scraper (9) and the limiting seat (10) are connected by screws, and the single-head scraper (9) and the limiting seat (10) are detachable.

6. The filter for treating organic waste gas according to claim 1, characterized in that: The vertical gap between the first demisting net (22) and the second demisting net (12) is greater than the thickness of the single-head scraper (9), and the length of the single-head scraper (9) is greater than the first demisting net (22) and the second demisting net (12).

7. The filter for treating organic waste gas according to claim 1, characterized in that: A group of nozzles (21) are installed at each of the four corners at the bottom of the wind hood (6), and each group of nozzles (21) faces the wind equalizing plate (7). A guide plate (16) is installed at the bottom end of the filter body (3). A collection box (15) is provided on the right side of the outer wall of the filter body (3), and the guide plate (16) is inclined toward the collection box (15).

8. The filter for treating organic waste gas according to claim 1, characterized in that: The front end of the filter body (3) is provided with a front door panel (4) which can be opened for maintenance.

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