Flue spraying device of wastewater treatment concentration tower

Abstract

The utility model discloses a flue spraying device of a wastewater treatment concentration tower, which relates to the field of wastewater treatment and comprises a mounting frame device, the mounting frame device comprises a mounting frame, a mounting plate is connected to the upper end of the mounting frame, a spraying tank is fixedly connected in the mounting frame, and symmetrical connecting columns are fixedly connected to two sides of the mounting frame. The lower end of the mounting frame is fixedly connected with a horizontally-arranged long spraying pipe, the long spraying pipe is fixedly connected with a heat dissipation and flow guide device, the lower end face of the long spraying pipe is provided with linearly-arranged atomizing nozzles, the spraying tank is communicated with the long spraying pipe, the connecting column is fixedly connected with a direct spraying device, and the direct spraying device is located above the heat dissipation and flow guide device and communicated with the spraying tank. According to the flue spraying device, the atomizing nozzle and the direct spraying device are used for spraying independently, concentrated wastewater sprayed by the direct spraying device is in contact with the heat dissipation and flow guide device and is sputtered towards the two sides, and meanwhile, the heat dissipation and flow guide device is cooled, so that heat dissipation is carried out on the spraying long pipe, the working environment of the spraying device is effectively improved, and the service life of the flue spraying device is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment, specifically relating to a flue spray device for a wastewater treatment concentration tower. Background Technology

[0002] Power plants generate a large amount of industrial wastewater during operation. Efficient and low-cost wastewater treatment to achieve zero discharge of industrial wastewater has always been a goal in production. The flue gas in the flue gas purification duct of power plants contains a large amount of waste heat, and how to utilize this waste heat is also an important issue.

[0003] A wastewater treatment thickening tower is installed on the clean flue gas duct side. Wastewater and other concentrated wastewater are pumped into the thickening tower via a pumping system. The concentrated wastewater is then pumped to the flue gas duct between the air preheater and the electrostatic precipitator. Because the concentration of the concentrated wastewater is high, approaching the evaporation concentration, partial direct injection can be performed during high-load, high-emission-temperature stages. Simultaneously, a spray device is installed at the air preheater outlet flue gas duct. Atomization evaporation is achieved through this spray device, and the resulting solid particles, such as impurities and salts, are sprayed onto the dust removal system for recovery. The steam from the wastewater evaporation enters a condenser for recycling, thus achieving both wastewater treatment and waste heat utilization. However, the flue gas spray device operates in a harsh environment with high temperature and high load for extended periods, resulting in a short service life and causing significant production disruptions. Utility Model Content

[0004] To address the problems mentioned in the background, this utility model provides a flue spray device for a wastewater treatment thickening tower. The concentrated wastewater, which can be partially directly sprayed, is used to cool the flue spray device, greatly extending its service life.

[0005] To achieve the above objectives, the specific technical solution of this utility model is as follows:

[0006] A flue spray device for a wastewater treatment thickening tower includes a mounting frame assembly. The mounting frame assembly includes a mounting bracket with a mounting plate connected to its upper end. A spray tank is fixedly connected inside the mounting bracket. Symmetrical connecting columns are fixedly connected to both sides of the mounting bracket. A horizontally arranged spray pipe is fixedly connected to the lower end of the mounting bracket. A heat dissipation and flow guiding device is fixedly connected to the spray pipe. A linearly arranged atomizing nozzle is provided on the lower end face of the spray pipe. The spray tank is connected to the spray pipe. A direct spray device is fixedly connected to the connecting columns. The direct spray device is located above the heat dissipation and flow guiding device and is connected to the spray tank.

[0007] As a further feature of the above scheme, the spray tank is provided with an input pipe at the upper end and output pipes on both sides of the spray tank.

[0008] As a further provision of the above scheme, the direct spray device includes a direct spray tank, which is fixedly installed on the connecting column and connected to the output pipe. The central axis of the direct spray tank is perpendicular to the spray pipe. A ring pipe is fixedly connected to the middle of the outer wall of the direct spray tank and is connected to the direct spray tank. A circularly arranged direct spray head is provided on the outer wall of the lower side of the ring pipe, and the direct spray head is located directly above the heat dissipation and air guiding device.

[0009] As a further feature of the above solution, the heat dissipation and flow guiding device includes a flow guiding plate, which is an inverted V-shaped heat-conducting plate. A flow guiding cone is provided at the upper end of the flow guiding plate. A heat dissipation connecting plate is provided on the inner side of the flow guiding plate. The heat dissipation connecting plate is fixedly connected to the spray pipe, and the inner wall of the flow guiding plate is in contact with the spray pipe.

[0010] This utility model has the following beneficial effects:

[0011] Taking advantage of the fact that the concentration of concentrated wastewater is close to that of evaporation, partial direct injection can be performed in high-load, high-temperature flues. A heat dissipation and flow guiding device is installed on the spray pipe and atomizing nozzle. A direct injection device is installed above the heat dissipation and flow guiding device. The atomizing nozzle and the direct injection device spray independently. The concentrated wastewater sprayed by the direct injection device comes into contact with the heat dissipation and flow guiding device and splashes to both sides. The heat dissipation and flow guiding device prevents the concentrated wastewater sprayed directly from coming into contact with the atomizing nozzle. At the same time, the heat dissipation and flow guiding device cools down, thereby dissipating heat from the spray pipe. This effectively improves the working environment of the spray device and greatly extends the service life of the flue gas spray device. Attached Figure Description

[0012] Figure 1 This is a front view of the present invention;

[0013] Figure 2 This is a schematic diagram of the appearance of this utility model;

[0014] Figure 3 This is a side view of the present invention;

[0015] Figure 4 This is a schematic diagram of the direct injection device of this utility model;

[0016] Figure 5 This is a schematic diagram of the heat dissipation and airflow guiding device of this utility model.

[0017] 1. Mounting bracket; 2. Spray pipe; 3. Spray tank; 4. Direct spray device; 5. Atomizing nozzle; 6. Heat dissipation and flow guiding device; 101. Mounting bracket; 102. Mounting plate; 103. Connecting column; 301. Input pipe; 302. Output pipe; 401. Direct spray tank; 402. Ring pipe; 403. Direct spray nozzle; 601. Flow guide plate; 602. Flow guide cone; 603. Heat dissipation connecting plate. Detailed Implementation

[0018] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0019] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The following will refer to the appendix... Figures 1-5 This application will be described in detail with reference to the embodiments.

[0020] like Figure 1 , Figure 2 As shown, a flue spray device for a wastewater treatment thickening tower includes a mounting frame 101. A mounting plate 102 is connected to the upper end of the mounting frame 101, which is then installed inside the flue via the mounting plate 102. A spray tank 3 is fixedly connected inside the mounting frame 101. An input pipe 301 is provided at the upper end of the spray tank 3, and output pipes 302 are provided on both sides of the spray tank 3. Symmetrical connecting columns 103 are fixedly connected to both sides of the mounting frame 101. A horizontally arranged spray pipe 2 is fixedly connected to the lower end of the mounting frame 101. A heat dissipation and flow guiding device 6 is fixedly connected to the spray pipe 2. Linearly arranged atomizing nozzles 5 are provided on the lower end face of the spray pipe 2. The spray tank 3 communicates with the spray pipe 2. A direct spray device 4 is fixedly connected to the connecting column 103. The direct spray device 4 is located above the heat dissipation and flow guiding device 6 and communicates with the spray tank 3.

[0021] like Figure 3 , Figure 4 As shown, the direct injection device 4 includes a direct injection tank 401, which is fixedly installed on the connecting column 103. The direct injection tank 401 is connected to the output pipe 302. The central axis of the direct injection tank 401 is perpendicular to the spray pipe 2. A ring pipe 402 is fixedly connected to the middle of the outer wall of the direct injection tank 401. The ring pipe 402 is connected to the direct injection tank 401. A circularly arranged direct injection nozzle 403 is provided on the outer wall of the lower side of the ring pipe 402. The direct injection nozzle 403 is located directly above the heat dissipation and flow guiding device. The opening of the direct injection nozzle 403 faces the flow guiding plate 601. The concentrated wastewater column sprayed by the direct injection nozzle 403 contacts the flow guiding cone 602. After contacting the flow guiding cone 602, the concentrated wastewater column splashes to both sides, and at the same time carries away the heat on the flow guiding plate 601 to achieve the purpose of cooling.

[0022] like Figure 5As shown, the heat dissipation and flow guiding device 6 includes a flow guiding plate 601, which is an inverted V-shaped heat-conducting plate. The upper end of the flow guiding plate 601 is provided with a flow guiding cone 602. The inner side of the flow guiding plate 601 is provided with a heat dissipation connecting plate 603, which is fixedly connected to the spray pipe 2. The inner wall of the flow guiding plate 601 is in contact with the spray pipe 2. The heat from the spray pipe 2 and the atomizing nozzle 5 is conducted to the flow guiding plate 601, which plays a cooling role.

[0023] The working process of this utility model is as follows: Concentrated wastewater is added to the spray tank 3 through the input pipe 301. The concentrated wastewater enters the spray tube 2 and is atomized and sprayed out from the atomizing nozzle 5. The atomized concentrated wastewater evaporates in the flue. The solid particles such as miscellaneous salts produced after evaporation are sprayed to the dust removal system for recycling, achieving the purpose of wastewater treatment and waste heat utilization. At the same time, the concentrated wastewater enters the direct spray tank 401 through the output pipe 302 and is sprayed out from the direct spray nozzle 403 on the ring pipe 402. The concentrated wastewater column sprayed from the direct spray nozzle 403 contacts the guide cone 602. After contacting the guide cone 602, the concentrated wastewater column splashes to both sides. The guide plate 601 prevents the directly sprayed concentrated wastewater from contacting the atomizing nozzle 5, ensuring the normal operation of the atomizing nozzle 5. The concentrated wastewater carries away the heat on the guide plate 601. Since the heat of the spray tube 2 and the atomizing nozzle 5 is conducted to the guide plate 601, the spray tube 2 and the atomizing nozzle 5 are cooled.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A flue gas spray device for a wastewater treatment thickening tower, comprising a mounting frame assembly, the mounting frame assembly including a mounting frame, the upper end of the mounting frame being connected to a mounting plate, characterized in that, A spray tank is fixedly connected inside the mounting frame. Symmetrical connecting columns are fixedly connected to both sides of the mounting frame. A horizontally arranged spray pipe is fixedly connected to the lower end of the mounting frame. A heat dissipation and air guiding device is fixedly connected to the spray pipe. A linearly arranged atomizing nozzle is provided on the lower end face of the spray pipe. The spray tank is connected to the spray pipe. A direct spray device is fixedly connected to the connecting column. The direct spray device is located above the heat dissipation and air guiding device and is connected to the spray tank.

2. The flue gas spray device for the wastewater treatment thickening tower according to claim 1, characterized in that, The spray tank is equipped with an input pipe at the top and output pipes on both sides.

3. The flue gas spray device for the wastewater treatment thickening tower according to claim 2, characterized in that, The direct spray device includes a direct spray tank, which is fixedly installed on a connecting column and connected to an output pipe. The central axis of the direct spray tank is perpendicular to the spray pipe. A ring pipe is fixedly connected to the middle of the outer wall of the direct spray tank and is connected to the direct spray tank. A circularly arranged direct spray head is provided on the lower outer wall of the ring pipe, and the direct spray head is located directly above the heat dissipation and air guiding device.

4. The flue gas spray device for the wastewater treatment thickening tower according to claim 1, characterized in that, The heat dissipation and flow guiding device includes a flow guiding plate, which is an inverted V-shaped heat-conducting plate. A flow guiding cone is provided at the upper end of the flow guiding plate. A heat dissipation connecting plate is provided on the inner side of the flow guiding plate. The heat dissipation connecting plate is fixedly connected to the spray pipe. The inner wall of the flow guiding plate is in contact with the spray pipe.

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