Power plant end wastewater treatment device

Abstract

The application relates to the technical field of power plant terminal wastewater treatment, and particularly discloses a power plant terminal wastewater treatment device, which comprises a body, a high-temperature flue gas inlet is arranged on one side of the top of the body, a smoke exhaust pipe is arranged on one side of the bottom of the body, an outlet is arranged at the bottom of the body, a flow inclined surface is arranged on the inner wall of the smoke exhaust pipe, a gap groove is arranged on the inner wall of the outlet, a deflection rod is hinged to the middle of the gap groove, a winding shaft is rotationally connected to the inside of the deflection rod, an arch breaking rod is embeddedly connected to the inside of the deflection rod, and a pressure receiving rod is arranged at the bottom of the deflection rod. When the crystalline salt and the particulate dust bridge and block, the pressure receiving rod protruding on the inner wall of the outlet is pressed due to the infiltration of water drops and the weight increase when sliding down, the pressure receiving rod is deflected to drive the deflection rod to extend, the bridge and the block are pressed and destroyed, and the bridge and the block are dispersed to continue sliding down.

Description

Technical Field

[0001] This invention relates to the field of power plant end-of-pipe wastewater treatment technology, and more specifically, to a power plant end-of-pipe wastewater treatment device. Background Technology

[0002] Power plant end-of-pipe wastewater refers to equipment used to treat wastewater after desulfurization.

[0003] Existing desulfurization wastewater treatment methods involve heating the flue gas from the boiler and spraying it onto the atomized desulfurization wastewater. The high-temperature flue gas evaporates the droplets in the wastewater, causing the salt in the wastewater to crystallize into particles. These particles, along with dust particles, are then trapped in the flue gas. After the flue gas cools, some of the salt crystals and dust particles fall into a collection hopper and are discharged separately, while the purified flue gas is discharged separately. However, during the separation and collection of these salt crystals and dust particles, the purified steam still contains some moisture, which can also slide down and mix with the crystal and dust particles. This causes the crystal and dust particles to stick and bridge more easily, clogging the discharge outlet. Summary of the Invention

[0004] The purpose of this invention is to provide a power plant end-of-pipe wastewater treatment device, which solves the problem that when the desulfurization wastewater at the end of the power plant undergoes high-temperature flue gas purification treatment, the separated salt crystal particles and dust particles mix with the moisture in the steam, resulting in increased viscosity and easy bridging and blockage at the discharge outlet.

[0005] This invention is achieved through the following technical solution: This invention provides a power plant end-of-pipe wastewater treatment device, comprising a main body, a high-temperature flue gas inlet located near the top of the main body, a flue gas pipe located near the bottom of the main body, a discharge outlet located at the bottom of the main body, a flow slope located on the inner wall of the flue gas pipe, a gap groove located on the inner wall of the discharge outlet, a deflection rod hinged to the middle of the gap groove, a winding shaft rotatably connected inside the deflection rod, an arch-breaking rod fitted inside the deflection rod, and a pressure-bearing rod located at the bottom of the deflection rod.

[0006] Preferably, the flow slope is a cavity that extends upwards at an angle to the inner wall of the exhaust pipe, and there is a certain angle between the pressure rod and the deflection rod.

[0007] Preferably, the deflection rod further includes a displacement groove and a hinge shaft. The displacement groove is formed on one side of the deflection rod, and the hinge shaft protrudes and is provided on both sides of the bottom of the deflection rod.

[0008] Preferably, the displacement groove is a groove that is inclinedly opened on one side of the deflection rod, and the displacement groove is matched with the arch-breaking rod.

[0009] Preferably, the deflection rod is connected to the clearance groove via hinge shafts on both sides of the bottom.

[0010] Preferably, the arch-breaking rod also includes a rack, which is disposed at the bottom of the arch-breaking rod.

[0011] Preferably, the rack is attached to one side of the winding shaft, and the side wall of the winding shaft is provided with a gear that meshes with the rack.

[0012] Preferably, the winding shaft further includes a connecting rope, which is wound around the side wall of the winding shaft, and one end of the connecting rope is connected to the bottom of the middle part of the gap groove.

[0013] Preferably, the gap groove further includes an abutment groove and a deflection groove, with the abutment groove located at the top of the gap groove and the deflection groove located at the bottom of the gap groove.

[0014] Preferably, there is a gap between the bottom of the middle part of the gap groove and the bottom of the deflection rod, the abutment groove is a groove that fits the bottom of the gap groove and the bottom of the deflection rod, and the deflection groove is a groove opened at the bottom of the gap groove.

[0015] The technical solution of the present invention has at least the following advantages and beneficial effects: 1. The pressure rod protruding from the inner wall of the outlet in the device applies pressure when crystalline salt and particulate dust bridge and block the flow, and when water droplets seep in and the weight increases, causing the pressure rod to deflect and extend, thereby applying pressure to break up the bridging blockage and allowing it to disperse and continue to slide down.

[0016] 2. The device is also equipped with an arch-breaking rod. When the deflecting rod extends, the internal winding shaft rotates due to the pull of the connecting rope, which engages and drives the arch-breaking rod to extend, contact the blockage, and then apply a downward force to actively break the arch. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 This is a side view cross-sectional structural diagram of the discharge port of the present invention.

[0019] Figure 3 For the present invention Figure 2 Enlarged diagram of point A in the middle.

[0020] Figure 4 For the present invention Figure 2 Enlarged diagram of point B in the middle.

[0021] Figure 5 This is a schematic diagram of the overall structure of the gap groove and deflection groove of the present invention.

[0022] Figure 6 This is a side view cross-sectional structural diagram of the exhaust pipe of the present invention.

[0023] Reference numerals: 1-body, 101-high temperature flue gas inlet, 102-exhaust pipe, 1021-flow ramp, 2-exhaust outlet, 201-deflection rod, 2011-displacement groove, 2012-arch breaking rod, 2013-rack, 2014-winding shaft, 2015-connecting rope, 2016-hinged shaft, 2017-pressure rod, 202-gap groove, 2021-abutment groove, 203-deflection groove. Detailed Implementation

[0024] The following is combined with Figures 1 to 6 The present invention will be described in detail below.

[0025] A power plant end-of-pipe wastewater treatment device includes a main body 1. A high-temperature flue gas inlet 101 is provided on the side of the main body 1 near the top, and a flue gas pipe 102 is provided on the side of the main body 1 near the bottom. An outlet 2 is provided at the bottom of the main body 1. A flow inclined surface 1021 is provided on the inner wall of the flue gas pipe 102. A gap groove 202 is formed on the inner wall of the outlet 2. A deflection rod 201 is hinged to the middle of the gap groove 202. A winding shaft 2014 is rotatably connected inside the deflection rod 201. An arch-breaking rod 2012 is fitted inside the deflection rod 201. A pressure-bearing rod 2017 is provided at the bottom of the deflection rod 201.

[0026] First, large particles and impurities in the desulfurization wastewater are filtered out. Then, the wastewater is pumped into the main body 1 and sprayed out through the atomizing nozzle at the top of the main body 1. The flue gas is then drawn into the air preheater to raise its temperature. It is then sent into the main body 1 through the high-temperature flue gas inlet 101. When the high-temperature flue gas comes into contact with the atomized wastewater, the water droplets evaporate, and the salt in the wastewater crystallizes into particles that stick to the flue gas along with some dust particles. After the flue gas cools down in the main body 1, some of the crystallized salt and particulate dust are captured and removed in the evaporator. The purified steam is then discharged back into the main flue through the exhaust pipe 102. The subsequent dust removal equipment removes dust, and the crystallized salt and particulate dust captured in the main body 1 fall into the discharge outlet 2 and slide out along the outlet 2.

[0027] Furthermore, the flow slope 1021 is a cavity extending upwards at an incline from the inner wall of the exhaust pipe 102. There is a certain angle between the pressure rod 2017 and the deflection rod 201. The deflection rod 201 also includes a displacement groove 2011 and a hinge shaft 2016. The displacement groove 2011 is opened on one side of the deflection rod 201, and the hinge shaft 2016 protrudes and is provided on both sides of the bottom of the deflection rod 201. The displacement groove 2011 is a groove that is inclinedly opened on one side of the deflection rod 201, and the displacement groove 2011 cooperates with the arch-breaking rod 2012. The deflection rod 201 is connected to the gap groove 202 through the hinge shafts 2016 on both sides of the bottom.

[0028] After crystallized salt and particulate dust continuously slide out through outlet 2, some of them adhere to the inner wall of outlet 2. Over a long period of time, this accumulation obstructs the sliding of crystallized salt and particulate dust, causing bridging and blockage of outlet 2. Simultaneously, when flue gas passes through exhaust pipe 102, the presence of moisture causes it to adhere to the flow slope 1021 on the inner wall of exhaust pipe 102. The flow slope 1021 allows the water droplets to flow along the slope to outlet 2, preventing water from flowing into exhaust pipe 102. The crystalline salt and particulate dust accumulated in 02 seep into the bridging blockage, increasing the weight of the blockage. As the weight of the blockage increases and it slides down, it applies pressure to the pressure rod 2017, which is set at an angle at the bottom of the deflection rod 201. This forces the pressure rod 2017 to deflect towards the deflection groove 203 with the hinge shaft 2016 as the axis. As a result, the deflection rod 201 will deflect towards the middle of the discharge outlet 2, applying pressure to break the bridging blockage and preventing the blockage from causing continuous blockage of the discharge outlet 2 and affecting subsequent discharge.

[0029] Furthermore, the arch-breaking rod 2012 also includes a rack 2013, which is located at the bottom of the arch-breaking rod 2012. The rack 2013 is attached to one side of the winding shaft 2014. The side wall of the winding shaft 2014 is provided with a gear that meshes with the rack 2013. The winding shaft 2014 also includes a connecting rope 2015, which is wound around the side wall of the winding shaft 2014. One end of the connecting rope 2015 is connected to the gap groove 20. At the bottom center of 2, the gap groove 202 also includes an abutment groove 2021 and a deflection groove 203. The abutment groove 2021 is formed at the top of the gap groove 202, and the deflection groove 203 is formed at the bottom of the gap groove 202. There is a gap between the bottom center of the gap groove 202 and the bottom of the deflection rod 201. The abutment groove 2021 is a groove that fits the bottom of the gap groove 202 with the bottom of the deflection rod 201, and the deflection groove 203 is a groove formed at the bottom of the gap groove 202.

[0030] When the deflecting rod 201 deflects out of the gap groove 202, the winding shaft 2014 inside the deflecting rod 201 will move away from the gap groove 202. Because a connecting rope 2015, one end of which is connected to the bottom center of the gap groove 202, is provided on the side wall of the winding shaft 2014, moving the winding shaft 2014 away from the gap groove 202 will pull the connecting rope 2015 out of the side wall of the winding shaft 2014, thus causing the winding shaft 2014 to be pulled and rotated. The gears are engaged with the rack 2013 at the bottom of the anti-bridging rod 2012, causing the winding shaft 2014 to rotate and drive the anti-bridging rod 2012 to extend along the displacement groove 2011. This applies a downward force to the top of the bridging crystalline salt and particulate dust. Because the deflection rod 201 deflects towards the center, the anti-bridging rod 2012 extends vertically and gets closer to the blockage. After extending, it can apply downward pressure to the blockage to break the arch.

[0031] At the same time, if there is too much obstruction in the bridging structure and it covers the position of the arch-breaking rod 2012, the arch-breaking rod 2012 will continue to extend and insert into the obstruction to drive the obstruction downward and break the arch.

[0032] After the arch is broken, the winding shaft 2014 will be reset by the torsion springs at both ends to rewind the connecting rope 2015, thereby pulling the deflection rod 201 to reset. At the same time, it will engage the transmission arch-breaking rod 2012 to retract and reset, so that the deflection rod 201 and the pressure rod 2017 can be triggered and utilized again.

[0033] Because of the angle between the pressure rod 2017 and the deflection rod 201, the pressure rod 2017 will deflect and protrude from the inner wall of the discharge port 2. At the same time, the round shaft of the pressure rod 2017 itself also minimizes the sliding of crystallized salt and particulate dust. Finally, the deflection groove 203 is a groove opened at the bottom of the gap groove 202, which gives the pressure rod 2017 enough space to deflect under pressure. The bottom of the deflection groove 203 also directly connects to the opening of the discharge port 2, so that if some crystallized salt and particulate dust slide into the deflection groove 203, they will also slide directly out along the slope. After the deflection rod 201 is deflected out, the gap groove 202 will be exposed. When crystallized salt and particulate dust fall in, because of the gap between the deflection rod 201 and the gap groove 202 after it is reset, the crystallized salt and particulate dust will also slide into the deflection groove 203 along the gap groove 202 and then be discharged.

[0034] The following is a detailed implementation process of this invention: First, large particles and impurities in the desulfurization wastewater are filtered out. Then, the wastewater is pumped into the main body 1 and sprayed out through the atomizing nozzle at the top of the main body 1. The flue gas is then drawn into the air preheater to raise its temperature. It is then sent into the main body 1 through the high-temperature flue gas inlet 101. When the high-temperature flue gas comes into contact with the atomized wastewater, the water in the droplets evaporates, and the salt in the wastewater crystallizes into particles that stick to the flue gas along with some dust particles. After the flue gas cools down in the main body 1, some of the crystallized salt and particulate dust are captured and removed in the evaporator. The purified steam is then discharged back into the main flue through the exhaust pipe 102. The subsequent dust removal equipment removes dust, and the crystallized salt and particulate dust captured in the main body 1 fall into the discharge outlet 2 and slide out along the outlet 2.

[0035] After crystallized salt and particulate dust continuously slide out through outlet 2, some of them adhere to the inner wall of outlet 2. Over a long period of time, this accumulation obstructs the sliding of crystallized salt and particulate dust, causing bridging and blockage of outlet 2. Simultaneously, when flue gas passes through exhaust pipe 102, the presence of moisture causes it to adhere to the flow slope 1021 on the inner wall of exhaust pipe 102. The flow slope 1021 allows the water droplets to flow along the slope to outlet 2, preventing water from flowing into exhaust pipe 102. The crystalline salt and particulate dust accumulated in 02 seep into the bridging blockage, increasing the weight of the blockage. As the weight of the blockage increases and it slides down, it applies pressure to the pressure rod 2017, which is set at an angle at the bottom of the deflection rod 201. This forces the pressure rod 2017 to deflect towards the deflection groove 203 with the hinge shaft 2016 as the axis. As a result, the deflection rod 201 will deflect towards the middle of the discharge outlet 2, applying pressure to break the bridging blockage and preventing the blockage from causing continuous blockage of the discharge outlet 2 and affecting subsequent discharge.

[0036] When the deflecting rod 201 deflects out of the gap groove 202, the winding shaft 2014 inside the deflecting rod 201 will move away from the gap groove 202. Because the side wall of the winding shaft 2014 is provided with a connecting rope 2015, one end of which is connected to the bottom center of the gap groove 202, when the winding shaft 2014 moves away from the gap groove 202, it will pull the connecting rope 2015 out of the side wall of the winding shaft 2014, thus causing the winding shaft 2014 to rotate. The gear on the side wall of the winding shaft 2014 meshes with the rack 2013 at the bottom of the arch-breaking rod 2012, causing the winding shaft 2014 to rotate. 14 During rotation, the meshing will cause the anti-bridging rod 2012 to extend along the displacement groove 2011, applying a downward force to the top of the bridging crystalline salt and particulate dust. As the deflection rod 201 deflects towards the center, the anti-bridging rod 2012 will extend in a vertical state, getting closer to the blockage. After extension, it can apply downward pressure to the blockage to break the arch. At the same time, if there is too much bridging blockage and it covers the position of the anti-bridging rod 2012, the anti-bridging rod 2012 will continue to extend and insert into the blockage to drive the blockage downward, which can also break the arch.

[0037] After the arch is broken, the winding shaft 2014 will be reset by the torsion springs at both ends to rewind the connecting rope 2015, thereby pulling the deflection rod 201 to reset. At the same time, it will engage the transmission arch-breaking rod 2012 to retract and reset, so that the deflection rod 201 and the pressure rod 2017 can be triggered and utilized again.

[0038] Because of the angle between the pressure rod 2017 and the deflection rod 201, the pressure rod 2017 will deflect and protrude from the inner wall of the discharge port 2. At the same time, the round shaft of the pressure rod 2017 itself also minimizes the sliding of crystallized salt and particulate dust. Finally, the deflection groove 203 is a groove opened at the bottom of the gap groove 202, which gives the pressure rod 2017 enough space to deflect under pressure. The bottom of the deflection groove 203 also directly connects to the opening of the discharge port 2, so that if some crystallized salt and particulate dust slide into the deflection groove 203, they will also slide directly out along the slope. After the deflection rod 201 is deflected out, the gap groove 202 will be exposed. When crystallized salt and particulate dust fall in, because of the gap between the deflection rod 201 and the gap groove 202 after it is reset, the crystallized salt and particulate dust will also slide into the deflection groove 203 along the gap groove 202 and then be discharged.

Claims

1. A power plant end-of-pipe wastewater treatment device, comprising a main body (1), wherein a high-temperature flue gas inlet (101) is provided on the side of the main body (1) near the top, a flue gas exhaust pipe (102) is provided on the side of the main body (1) near the bottom, and an exhaust outlet (2) is provided at the bottom of the main body (1), characterized in that, The inner wall of the exhaust pipe (102) is provided with a flow slope (1021), and the inner wall of the outlet (2) is provided with a gap groove (202). A deflection rod (201) is hinged in the middle of the gap groove (202). A winding shaft (2014) is rotatably connected inside the deflection rod (201). An arch-breaking rod (2012) is fitted inside the deflection rod (201). A pressure rod (2017) is provided at the bottom of the deflection rod (201).

2. The power plant end-of-pipe wastewater treatment device according to claim 1, characterized in that, The flow slope (1021) is a cavity that extends upward at an incline from the inner wall of the exhaust pipe (102), and there is a certain angle between the pressure rod (2017) and the deflection rod (201).

3. The power plant end-of-pipe wastewater treatment device according to claim 1, characterized in that, The deflection rod (201) also includes a displacement groove (2011) and a hinge shaft (2016). The displacement groove (2011) is opened on one side of the deflection rod (201), and the hinge shaft (2016) protrudes and is arranged on both sides of the bottom of the deflection rod (201).

4. The power plant end-of-pipe wastewater treatment device according to claim 3, characterized in that, The displacement groove (2011) is a groove that is inclinedly opened on one side of the deflection rod (201), and the displacement groove (2011) cooperates with the arch-breaking rod (2012).

5. The power plant end-of-pipe wastewater treatment device according to claim 3, characterized in that, The deflection rod (201) is connected to the gap groove (202) via hinge shafts (2016) on both sides of the bottom.

6. The power plant end-of-pipe wastewater treatment device according to claim 1, characterized in that, The arch-breaking rod (2012) also includes a rack (2013), which is disposed at the bottom of the arch-breaking rod (2012).

7. A power plant end-of-pipe wastewater treatment device according to claim 6, characterized in that, The rack (2013) is attached to one side of the winding shaft (2014), and the side wall of the winding shaft (2014) is provided with a gear that meshes with the rack (2013).

8. The power plant end-of-pipe wastewater treatment device according to claim 1, characterized in that, The winding shaft (2014) also includes a connecting rope (2015), which is wound around the side wall of the winding shaft (2014), and one end of the connecting rope (2015) is connected to the bottom of the middle part of the gap groove (202).

9. A power plant end-of-pipe wastewater treatment device according to claim 1, characterized in that, The gap groove (202) also includes an abutment groove (2021) and a deflection groove (203), the abutment groove (2021) being formed at the top of the gap groove (202) and the deflection groove (203) being formed at the bottom of the gap groove (202).

10. A power plant end-of-pipe wastewater treatment device according to claim 9, characterized in that, The bottom of the middle part of the gap groove (202) has a gap with the bottom of the deflection rod (201). The abutment groove (2021) is a groove that fits the bottom of the gap groove (202) with the bottom of the deflection rod (201). The deflection groove (203) is a groove opened at the bottom of the gap groove (202).

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