An incinerator exhaust condensate recovery device

Abstract

The utility model relates to waste gas condensate recovery technical field, specifically is a kind of incinerator waste gas condensate recovery device, including vertical pipe, first sealing plate, second sealing plate and third sealing plate, upper filter screen and lower filter screen, the side of vertical pipe is vertically communicated with the upper material collecting pipe and lower material collecting pipe of being located liquid recovery pipe both sides and outer end detachable seal in liquid flow opposite direction, vertical pipe side is also communicated with the jet pipe transversely opposite with upper material collecting pipe, lower material collecting pipe, jet pipe is communicated with air pump, first sealing plate is driven along vertical pipe up and down by drive mechanism and moves, and upper filter screen is opposite with liquid recovery pipe, lower filter screen is opposite with lower material collecting pipe, when lower filter screen is opposite with liquid recovery pipe, upper filter screen is opposite with upper material collecting pipe.The use of the application, can pass through the movement of upper filter screen and lower filter screen, not only realize filter screen replacement without stopping work, improve efficiency to some extent, simultaneously, realize the cleaning of upper filter screen and lower filter screen using jet pipe, ensure its cyclic use for many times.

Description

Technical Field

[0001] This utility model belongs to the field of waste gas condensate recovery technology, specifically a waste gas condensate recovery device for incinerators. Background Technology

[0002] Incinerators, as important waste treatment equipment, generate large amounts of high-temperature exhaust gas during operation. To recover the latent heat of moisture in the exhaust gas, reduce flue gas humidity, and remove some pollutants, an exhaust gas condensation system is typically installed. This system lowers the exhaust gas temperature below the dew point through heat exchange and other methods, causing water vapor and some condensable pollutants (such as tar and some organic acids) in the exhaust gas to condense into condensate. These condensates are extremely complex in composition and highly polluting, mainly containing tar-like substances and particulate matter.

[0003] To ensure that the recovered condensate can be safely discharged or further treated (such as wastewater treatment) and to avoid environmental pollution or blockage of subsequent pipelines and equipment, a filter device is usually installed on the liquid recovery pipeline of the condensate to remove solid particles (dust) and viscous substances (tar).

[0004] However, most commonly used filtration devices employ a single filter screen or filter element structure. This design is problematic when dealing with complex condensates, as the condensate contains both high-viscosity tar and fine dust particles. These two components easily mix, adhere, and accumulate on the filter screen surface. The tar coats the dust particles, forming a viscous paste that quickly clogs the filter screen pores.

[0005] Rapid clogging of the filter screen increases system operating resistance, reduces flow rate, and can even lead to system failure. Therefore, operators need to frequently disassemble the filter unit to manually clean or replace the filter screen. This not only increases labor intensity but also reduces system operating efficiency. Utility Model Content

[0006] This invention provides a device for recovering condensate from incinerator waste gas, which addresses the deficiencies in the prior art.

[0007] This utility model is achieved through the following technical solution:

[0008] A device for recovering condensate from incinerator waste gas includes a vertical pipe that is vertically mounted on and connected to a liquid recovery pipe. Inside the vertical pipe, a first sealing plate, a second sealing plate, and a third sealing plate are slidably sealed from top to bottom. An upper filter screen and a lower filter screen are fixedly mounted between the first and second sealing plates, and between the second and third sealing plates, respectively. An upper collecting pipe and a lower collecting pipe, located on either side of the liquid recovery pipe and detachably sealed at their outer ends, are vertically connected to the side of the vertical pipe in the opposite direction of liquid flow. A blowpipe is also connected to the side of the vertical pipe, laterally opposite to the upper and lower collecting pipes. The blowpipe is connected to an air pump. The first sealing plate is driven by a driving mechanism to move up and down along the vertical pipe, with the upper filter screen facing upwards towards the liquid recovery pipe and the lower filter screen facing upwards towards the lower collecting pipe. When the lower filter screen faces the liquid recovery pipe, the upper filter screen faces upwards towards the upper collecting pipe.

[0009] In use, the liquid flows through the liquid recovery pipe and then through the vertical pipe, entering the upper filter screen. Under the sealing action of the first and second sealing plates, the liquid passes through the upper filter screen and returns to the liquid recovery pipe. Impurities are blocked by the upper filter screen. After the upper filter screen blocks impurities at one end, a driving mechanism moves the first sealing plate upwards, causing the lower filter screen to move to the original position of the upper filter screen. The upper filter screen then aligns with the upper collection pipe, thus performing a filtering function. Impurities within the upper filter screen are then cleaned by air blown out by the blowpipe. Simultaneously, after a period of use, the lower filter screen moves downwards under the drive mechanism, causing the upper filter screen to return to its initial position, while the lower filter screen is cleaned by the corresponding blowpipe.

[0010] Preferably, both the upper and lower ends of the vertical pipe are threaded with caps, and the caps have vent holes to prevent external pollutants from entering the vertical pipe and damaging the first sealing plate.

[0011] Preferably, the drive mechanism includes an electric telescopic rod that is vertically fixed above the vertical pipe. The movable end of the electric telescopic rod is vertically connected to a pull rod. The pull rod passes through the corresponding cover and is vertically connected to the first sealing plate. The shortening of the electric telescopic rod causes the first sealing plate to move upward, and the extension of the electric telescopic rod causes the first sealing plate to move downward.

[0012] Preferably, tapered tubes with a wider outer diameter and a narrower inner diameter are symmetrically arranged on both sides of the vertical pipe. The tapered tubes are connected to the liquid recovery pipe. The tapered tube on the water inlet side of the vertical pipe can slow down the flow rate of the liquid entering the vertical pipe, achieving better filtration, while the tapered tube on the other side can increase the flow rate and achieve the return to the predetermined speed.

[0013] Preferably, the movable end of the electric telescopic rod has a threaded hole with a screw threaded into it. The screw is coaxially and fixedly connected to the pull rod, and the diameter of the screw is smaller than that of the pull rod. The lower end of the pull rod is rotatably connected to the first sealing plate via a bearing. Rotating the pull rod allows it to detach from the electric telescopic rod, enabling the upper and lower filters to be removed from the bottom of the vertical pipe for cleaning, thus ensuring its long-term use.

[0014] Preferably, the air pump outlet is connected to an air outlet pipe, which is vertically connected to and connected to an arc-shaped pipe. The arc-shaped pipe bypasses the conical pipe and is connected at both ends to a vertically closed air pipe. The vertically closed air pipe is vertically connected to and connected to several blowpipes facing the corresponding upper and lower filters. The gas generated by the air pump enters the arc-shaped pipe through the air outlet pipe, and then enters the two vertical air pipes, thereby being sprayed out from the corresponding blowpipes to clean the corresponding upper and lower filters.

[0015] The beneficial effects of this utility model are as follows: By moving the upper and lower filter screens, the filter screens can be replaced without stopping work, which improves efficiency to a certain extent. At the same time, the upper and lower filter screens can be cleaned by using the blow pipe, ensuring that they can be recycled and reused multiple times. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] As shown in the figure:

[0019] 1. Vertical pipe, 2. Liquid recovery pipe, 3. Conical pipe, 4. First sealing plate, 5. Second sealing plate, 6. Third sealing plate, 7. Upper filter screen, 8. Lower filter screen, 9. Upper collection pipe, 10. Lower collection pipe, 11. Electric telescopic rod, 12. Blowering pipe, 13. Vertical air pipe, 14. Pull rod. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0021] A device for recovering condensate from incinerator exhaust gas, such as Figure 1 As shown. It includes a vertical pipe 1, which is vertically mounted on and connected to a liquid recovery pipe 2. Inside the vertical pipe 1, from top to bottom, are a first sealing plate 4, a second sealing plate 5, and a third sealing plate 6 that are slidably sealed. An upper filter screen 7 and a lower filter screen 8 are fixedly installed between the first sealing plate 4 and the second sealing plate 5, and between the second sealing plate 5 and the third sealing plate 6, respectively. The side of the vertical pipe 1 is vertically connected in the opposite direction of liquid flow to an upper collecting pipe 9 and a lower collecting pipe 10 located on both sides of the liquid recovery pipe 2 and whose outer ends are detachably sealed. The side of the vertical pipe 1 is also connected to a blowpipe 12 that is laterally opposite to the upper collecting pipe 9 and the lower collecting pipe 10. The blowpipe 12 is connected to an air pump. The first sealing plate 4 is driven by a driving mechanism to move up and down along the vertical pipe 1, with the upper filter screen 7 facing upwards towards the liquid recovery pipe 2, and the lower filter screen 8 facing upwards towards the lower collecting pipe 10. When the lower filter screen 8 is facing the liquid recovery pipe 2, the upper filter screen 7 is facing upwards towards the upper collecting pipe 9.

[0022] In use, the liquid flows through the liquid recovery pipe 2 and then through the vertical pipe 1, entering the upper filter screen 7. Under the sealing action of the first sealing plate 4 and the second sealing plate 5, the liquid passes through the upper filter screen 7 and returns to the liquid recovery pipe 2. Impurities are blocked by the upper filter screen 7. After the upper filter screen 7 blocks impurities for a period of time, the driving mechanism moves the first sealing plate 4 upwards, causing the lower filter screen 8 to move to the original position of the upper filter screen 7. The upper filter screen 7 is now opposite the upper collection pipe 9, thus the lower filter screen 8 performs a filtering function. Impurities within the upper filter screen 7 are then backflushed by the air blown from the blowpipe 12, cleaning the upper filter screen 7. Simultaneously, after a period of use, the lower filter screen 8 moves downwards under the drive mechanism, causing the upper filter screen 7 to return to its initial position, and the lower filter screen 8 is then cleaned by the corresponding blowpipe 12. The condensate carried out by the movement of the first sealing plate 4, the second sealing plate 5, and the third sealing plate 6 can achieve backwashing of the corresponding upper and lower filters, while the blowpipe 12 can perform spray cleaning, further improving the cleaning effect. It also includes filter cloth that can be wrapped around the upper collection pipe 9 and the lower collection pipe 10. During the blowing process, the filter cloth can be used to cover the corresponding upper collection pipe 9 and lower collection pipe 10 to collect pollutants.

[0023] Both the upper and lower ends of the vertical pipe 1 are threaded with caps, and the caps are provided with vent holes to prevent external pollutants from entering the vertical pipe 1 and damaging the first sealing plate 4.

[0024] The vertical pipe 1 is symmetrically provided with tapered pipes 3 that are wider on the outside and narrower on the inside. The tapered pipes 3 are connected to the liquid recovery pipe 2. The tapered pipe 3 on the water inlet side of the vertical pipe 1 can slow down the flow rate of the liquid entering the vertical pipe 1 and achieve better filtration, while the tapered pipe 3 on the other side can increase the flow rate and achieve the return to the predetermined speed.

[0025] The drive mechanism includes an electric telescopic rod 11 that is vertically fixed above the vertical pipe 1. The movable end of the electric telescopic rod 11 is vertically connected to a pull rod 14. The pull rod 14 passes through the corresponding cover and is vertically connected to the first sealing plate 4. The shortening of the electric telescopic rod 11 causes the first sealing plate 4 to move upward, and the extension of the electric telescopic rod 11 causes the first sealing plate 4 to move downward.

[0026] The movable end of the electric telescopic rod 11 has a threaded hole, and a screw is threaded into the threaded hole. The screw is coaxially and fixedly connected to the pull rod 14, and the diameter of the screw is smaller than the diameter of the pull rod 14. The lower end of the pull rod 14 is rotatably connected to the first sealing plate 4 through a bearing. Rotating the pull rod 14 can disengage the pull rod 14 from the electric telescopic rod 11, so that the upper filter screen 7 and the lower filter screen 8 can be removed from the lower part of the vertical pipe 1 for cleaning, further ensuring their long-term use.

[0027] The air pump outlet is connected to an air outlet pipe, which is vertically connected to an arc-shaped pipe. The arc-shaped pipe bypasses the conical pipe 3 and is connected at both ends to a vertical air pipe 13 with its outer ends closed. The vertical air pipe 13 is vertically connected to several blowpipes 12 facing the corresponding upper filter screen 7 and lower filter screen 8. The gas generated by the air pump enters the arc-shaped pipe through the air outlet pipe, and then enters the two vertical air pipes 13, thereby being sprayed out from the corresponding blowpipes 12 to clean the corresponding upper and lower filter screens. A solenoid valve is provided at the opposite end of the vertical air pipe 13. The solenoid valve can ensure that air enters one side of the vertical air pipe 13 to achieve a better blowing effect.

[0028] The use of this application allows for filter replacement without downtime by moving the upper filter screen 7 and the lower filter screen 8, which improves efficiency to a certain extent. At the same time, the blow pipe 12 is used to clean the upper filter screen 7 and the lower filter screen 8, ensuring that they can be used multiple times.

[0029] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A device for recovering condensate from incinerator waste gas, characterized in that: The device includes a vertical pipe that is vertically installed on and connected to a liquid recovery pipe. Inside the vertical pipe, a first sealing plate, a second sealing plate, and a third sealing plate are slidably sealed from top to bottom. An upper filter screen and a lower filter screen are fixedly installed between the first and second sealing plates and between the second and third sealing plates, respectively. The side of the vertical pipe is vertically connected to an upper collection pipe and a lower collection pipe located on both sides of the liquid recovery pipe and whose outer ends are detachably sealed. The side of the vertical pipe is also connected to a blow pipe that is laterally opposite to the upper and lower collection pipes. The blow pipe is connected to an air pump. The first sealing plate is driven by a drive mechanism to move up and down along the vertical pipe, with the upper filter screen facing the liquid recovery pipe and the lower filter screen facing the lower collection pipe. When the lower filter screen is facing the liquid recovery pipe, the upper filter screen is facing the upper collection pipe.

2. The incinerator waste gas condensate recovery device according to claim 1, characterized in that: Both the upper and lower ends of the vertical tube are threaded with caps, and the caps have vent holes.

3. The incinerator waste gas condensate recovery device according to claim 2, characterized in that: The drive mechanism includes an electric telescopic rod that is vertically fixed above the vertical pipe. The movable end of the electric telescopic rod is vertically connected to a pull rod, which passes through the corresponding cover and is vertically connected to the first sealing plate.

4. The incinerator waste gas condensate recovery device according to claim 3, characterized in that: Symmetrical tapered tubes, wider on the outside and narrower on the inside, are installed on both sides of the vertical pipe, and these tapered tubes are connected to the liquid recovery pipe.

5. The incinerator waste gas condensate recovery device according to claim 3, characterized in that: The movable end of the electric telescopic rod is provided with a screw hole, and a screw rod is threaded into the screw hole. The screw rod is coaxially and fixedly connected to the pull rod, and the diameter of the screw rod is smaller than the diameter of the pull rod. The lower end of the pull rod is rotatably connected to the first sealing plate through a bearing.

6. The incinerator waste gas condensate recovery device according to claim 1, characterized in that: The air pump outlet is connected to an air outlet pipe, which is vertically connected to and connected to an arc-shaped pipe. The arc-shaped pipe bypasses the conical pipe and is connected at both ends to a vertical air pipe with its outer end closed. The vertical air pipe is vertically connected to and connected to several blowpipes that face the corresponding upper and lower filters.

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