A phase-controlled spray cone flow-guiding wet dust removal process and dust removal device

Abstract

The invention discloses a phase-controlled spray cone guide wet dust removal process and a dust removal device thereof, which relate to the technical field of wet dust removal, and include a phase-controlled spray washing tower, a cone guide mist removing tower and a limit pipe whose two ends are respectively fixedly plugged between the phase-controlled spray washing tower and the cone guide mist removing tower. The invention can arrange full-coverage spray in a multi-phase staggered manner through the cooperation of the phase-controlled spray washing tower and the cone guide mist removing tower to wash the dust and droplets in the dust-containing steam, and the secondary part of the flue gas with dust is pushed through the upper top arc of the guide cone to the tower wall end of the cone guide mist removing tower, thereby accelerating the flue gas flow rate, making the droplets, mist droplets and a small amount of dust collide with the tower wall and the cone top arc to form a gas-liquid separation and gas-dust separation flow field, which can further improve the dust removal effect, and the dust removal device can also recycle water, saving the use cost. In addition, the solidified impurities can be cut to facilitate the further purification and circulation of turbid water.

Description

Technical Field

[0001] The invention relates to the technical field of wet dust removal, and in particular to a phase-controlled spray cone flow-guiding wet dust removal process and a dust removal device thereof. Background Art

[0002] The phase-controlled spray cone guide wet dust removal device is a wet dust removal device that combines phase-controlled technology, spray system and cone guide design. This device achieves effective dust removal of dust-laden flue gas through a specific design and working principle. Phase-controlled technology may refer to controlling the working state of the spray system, such as spray time, spray volume, etc., to adapt to the dust removal requirements under different working conditions. This technology can optimize the dust removal effect and reduce energy consumption and water waste.

[0003] In order to save water resources, the existing phase-controlled spray cone diversion wet dust removal device usually has an internal circulating water system. Usually, the turbid water can be added with chemicals for flocculation and precipitation, and then the clean water is squeezed out through a plate and frame filter press. However, after the turbid water is added with chemicals for flocculation and precipitation, the impurities will solidify into large lumps, which makes it inconvenient to extract them through a sewage pump, which is prone to blockage problems and affects the normal operation of the entire device.

[0004] Therefore, we designed a phase-controlled spray cone flow-guiding wet dust removal process and a dust removal device to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a phase-controlled spray cone flow-guiding wet dust removal process and a dust removal device thereof, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to solve the above technical problems, the present invention provides a phase-controlled spray cone-guided wet dust removal device, comprising a phase-controlled spray washing tower, a cone-guided defogger tower and a limit pipe whose two ends are fixedly plugged between the phase-controlled spray washing tower and the cone-guided defogger tower, respectively. The phase-controlled spray washing tower and the cone-guided defogger tower are respectively provided with a spray component and a defogger component. The bottom of the front side of the phase-controlled spray washing tower and the cone-guided defogger tower are fixedly plugged with a connecting pipe, the other end of the connecting pipe is fixedly installed with a water collecting pipe, the other end of the water collecting pipe is provided with a first water pump, and the first A Z-shaped tube is provided at the other end of the water pump, and a concentration reaction tank is fixedly connected to the other end of the Z-shaped tube. A second water pump is fixedly installed at the bottom of one side of the concentration reaction tank, and a guide tube is provided at the other end of the second water pump. A plate-frame filter press is provided at the other end of the guide tube, and a discharge pipe is provided at the other side of the plate-frame filter press. A motor is fixedly installed at the top of the concentration reaction tank, and a driving shaft of the motor rotates and penetrates the concentration reaction tank and is provided with two stirring shafts, and a knife body frame is provided at the front side of one of the stirring shafts, and a blade is provided at the front side of the knife body frame;

[0007] The spray assembly includes a plurality of upper liquid pipes, which are fixedly plugged into one side of a phase-controlled spray washing tower and are used to connect to an external water source. A plurality of spray pipes are fixedly installed in the phase-controlled spray washing tower, and a water spray head is arranged at the bottom of the spray pipe, and the spray pipe is connected to the upper liquid pipe. The defogger assembly includes a guide cone, and two connecting rods are symmetrically arranged at the bottom of the guide cone, and the other end of the connecting rod is arranged on the inner side wall of the cone-guide defogger tower. A spacing is left between the guide cone and the cone-guide defogger tower, and arc slopes are arranged at the top and bottom of the guide cone. Two annular tower drain grooves are arranged in the cone-guide defogger tower, and the annular tower drain grooves are located below the guide cone.

[0008] Furthermore, it also includes a lifting component for lifting and lowering the blade to cut solidified impurities. The lifting component includes a fixed frame, which is fixedly installed on the driving shaft of the motor. The bottom of the fixed frame is rotatably connected to a threaded screw, and a nut is threadedly sleeved on the threaded screw. The stirring shaft is fixedly connected to the nut. A guide rod is provided at the bottom of the fixed frame, and the guide rod and the end of the threaded screw away from the motor are both suspended in the air. The nut is movably sleeved on the guide rod. The lifting component also includes a driving member for driving the threaded screw to rotate.

[0009] Furthermore, the driving member includes a large gear, which is fixedly sleeved on the threaded screw, and a fixed shaft is fixedly installed on the inner top wall of the concentration reaction tank, and a small gear is fixedly installed on the other end of the fixed shaft, and the fixed shaft is meshingly connected with the small gear, and the fixed frame and the fixed shaft do not contact each other.

[0010] Furthermore, a limit rod is fixedly installed in the knife body frame, a rack is slidably sleeved on the limit rod, a fixed block is fixedly installed on the front side of the rack, the other end of the fixed block is fixedly connected to the blade, and a waterproof motor is arranged on the rear side of the knife body frame, the driving shaft of the waterproof motor rotates and extends into the knife body frame and is fixedly sleeved with a positioning gear, and the positioning gear is meshingly connected with the rack.

[0011] Furthermore, a cavity and a sliding opening are respectively provided inside and on the front side of the cutter body frame, both ends of the limit rod are fixedly installed in the cavity, and the fixed block is slidably inserted in the sliding opening.

[0012] Furthermore, the number of the upper liquid pipes is three, and the three upper liquid pipes are arranged at equal intervals.

[0013] Furthermore, it also includes a water circulation component, which includes an L-shaped pipe, the L-shaped pipe is fixedly plugged into one side of the phase-controlled spray washing tower, the other end of the L-shaped pipe is provided with a third water pump, the other end of the third water pump is provided with a straight pipe, the straight pipe is fixedly connected to the upper liquid pipe, the rear side of the concentration reaction tank is fixedly plugged with a first delivery pipe, the other end of the first delivery pipe is fixedly plugged into the phase-controlled spray washing tower, and a second delivery pipe is also provided on one side of the plate and frame filter press, the other end of the second delivery pipe is fixedly plugged into one side of the concentration reaction tank.

[0014] Furthermore, a smoke inlet pipe is fixedly connected to one side of the phase-controlled spray scrubbing tower, and a smoke exhaust pipe is fixedly connected to one side of the cone-shaped flow-guiding demister tower.

[0015] The present invention also discloses a phase-controlled spray cone flow-guiding wet dust removal process, which uses the above-mentioned phase-controlled spray cone flow-guiding wet dust removal device, including the following steps:

[0016] S1: In the process of selecting, batching and mixing materials, industrial kilns need to add a certain proportion of water. The purpose of adding water is to form the material layer and suppress dust. At the same time, lime needs to be added. The added lime needs to pass through a lime digester. This part of lime removes most of the acidic substances in the material ore during calcination or combustion. A large amount of dust-containing steam will be generated in the above production process, so it is necessary to remove dust from the flue gas. First, the flue gas is introduced into the phase-controlled spray washing tower through the smoke inlet pipe, so that the flue gas enters tangentially at the lower part of the phase-controlled spray washing tower and rises around the tower. Since the spray pipe is arranged in the phase-controlled spray washing tower, the positive upward airflow and the reverse downward spray are fully coordinated, which can wash the dust and droplets in the dust-containing steam and sink to the bottom of the phase-controlled spray washing tower with the spray water. The collected liquid is roughly precipitated at the bottom of the phase-controlled spray washing tower. The clear liquid at the upper layer at the bottom of the phase-controlled spray washing tower can be used as circulating water by opening the third water pump and cooperating with the straight pipe and the upper liquid pipe to introduce the spray pipe for recycling;

[0017] The turbid liquid at the bottom of the phase-controlled spray scrubber is discharged into the concentration reaction tank for water treatment. The dust-containing steam still carries droplets, mist droplets and a small amount of dust after being washed by the phase-controlled spray scrubber. It is connected to the cone-guided defogger through the limit pipe on the upper part of the phase-controlled spray scrubber. Since a guide cone is arranged on the upper part of the cone-guided defogger, the airflow is pushed to the tower wall end of the cone-guided defogger through the arc on the upper part of the guide cone. A small gap is left between the guide cone and the tower wall of the phase-controlled spray scrubber, thereby accelerating the flue gas flow rate, causing the droplets, mist droplets and a small amount of dust to collide with the tower wall and the guide cone, forming a water film on the tower wall and the guide cone, gathering and absorbing the droplets, mist droplets and a small amount of dust, achieving the effect of defogger and dust collection. The clean flue gas is discharged from the exhaust pipe at the lower part of the cone-guided defogger to complete the wet dust removal;

[0018] The gap between the spray pipe and the tower wall can be set to a 45° arc angle to guide the airflow to rotate along the tower wall, generate a greater centrifugal force of the airflow, and make it easier for droplets, mist droplets and a small amount of dust to adhere to the tower wall, forming a gas-liquid separation and gas-dust separation flow field. By setting the ring tower drainage groove, the water film generated by the tower wall can be quickly collected and drained. The drainage generated by the double towers above can be turned on the first water pump, and the connecting pipe, water collecting pipe and Z-shaped pipe can be centrally transported to the concentration reaction tank for treatment. After adding water treatment agents, flocculation and precipitation are carried out, and the clear water on the top of the concentration reaction tank can enter the spray pipe through the first delivery pipe for recycling, and the turbid water at the bottom is transported to the plate and frame filter press. Under the action of the plate and frame filter press, it is squeezed out of the plate and frame filter press and continues to circulate internally. At the same time, the mud discharged from the plate and frame filter press is returned to the material mining area;

[0019] S2: After adding water treatment agents to the above concentration reaction tank to flocculate and precipitate turbid water, impurities will solidify. In order to avoid the problem of clogging of the second water pump, the motor can be turned on so that the driving shaft of the motor drives the stirring shaft and the blade frame to move, so that the blade can cut the solidified impurities, so that they can be conveniently transported to the plate and frame filter press by the second water pump;

[0020] S3: In S2, the rotation of the motor drive shaft drives the fixed frame to rotate, so that the large gear on the threaded screw is meshed with the small gear to drive the threaded screw to rotate, so that the nut drives the stirring shaft to move slowly upward along the direction set by the guide rod, so that the solidified impurities in different areas of the concentration reaction tank can be cut, which can further improve the effect of the second water pump in conveying turbid liquid and also improve the cutting efficiency;

[0021] S4: In S2, the waterproof motor is turned on so that the driving shaft of the waterproof motor drives the positioning gear to rotate, so that the positioning gear drives the rack, the fixed block and the blade to reciprocate along the direction set by the limit rod, which can simulate the sawing action. It can not only help solve the problem of curling of the blade, but also further improve the cutting effect, making it easier to cut solidified impurities.

[0022] Compared with the prior art, the beneficial effects of the present invention are: 1. Through the cooperation of the phase-controlled spray washing tower and the cone-guided demister tower, the full-coverage spray can be arranged in a multi-phase staggered manner, and the positive upward airflow and the reverse downward spray are fully engaged to wash the dust and droplets in the dust-containing steam, and the secondary part of the flue gas with dust is pushed through the upper top arc of the guide cone to the tower wall end of the cone-guided demister tower, thereby accelerating the flue gas flow rate, making the droplets, mist droplets and a small amount of dust collide with the tower wall and the cone top arc, forming a gas-liquid separation and gas-dust separation flow field, which can further improve the dust removal effect.

[0023] 2. The phase-controlled spray cone flow wet dust removal device can not only use the double towers to effectively remove dust from the flue gas, but also circulate the wastewater. It not only solves the environmental emission target of flue gas dust removal, but also achieves the zero emission target of all processes and devices. The generated wastewater is all internally circulated, and the mud formed by dust collection is directly returned to the material mine for comprehensive utilization. While achieving the emission reduction target, the purpose of energy saving is achieved.

[0024] 3. Since impurities will solidify after adding water treatment agents to the concentration reaction tank for flocculation and precipitation of turbid water, in order to avoid the problem of clogging of the second water pump, by turning on the motor, the driving shaft of the motor can drive the stirring shaft and the blade frame to move, so that the blade can cut the solidified impurities, which can be easily transported to the plate and frame filter press by the second water pump. Large pieces of solidified impurities can be cut into small pieces, which helps to solve the problem that the second water pump cannot absorb and transport.

[0025] 4. The rotation of the motor drive shaft will drive the fixed frame to rotate, so that the large gear on the threaded screw engages with the small gear to drive the threaded screw to rotate, so that the nut will drive the stirring shaft to move slowly upward along the direction set by the guide rod, which can cut the solidified impurities in different areas of the concentration reaction tank, further improve the effect of the second water pump in conveying turbid liquid, and also improve the cutting efficiency.

[0026] 5. By turning on the waterproof motor, the driving shaft of the waterproof motor can drive the positioning gear to rotate, so that the positioning gear drives the rack, the fixed block and the blade to reciprocate along the direction set by the limit rod, which can simulate the sawing action. It can not only help solve the problem of curling of the blade, but also further improve the cutting effect, making it easier to cut solidified impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of the front exterior of the present invention;

[0028] Figure 2 It is a schematic diagram of the three-dimensional structure of the present invention when looking down at the outside;

[0029] Figure 3 It is a schematic diagram of the three-dimensional structure of the back surface of the present invention;

[0030] Figure 4 It is a schematic diagram of the three-dimensional structure of the interior of the concentration reaction tank of the present invention in a half-section view from the front;

[0031] Figure 5 It is a schematic diagram of the three-dimensional structure of the interior of the concentration reaction tank of the present invention viewed from above and half cut away;

[0032] Figure 6 It is a schematic diagram of the three-dimensional structure of the front inner half-section of the cutter body holder of the present invention;

[0033] Figure 7 It is a three-dimensional structural schematic diagram of the front interior half-section of the phase-controlled spray scrubber and the conical flow demisting tower of the present invention;

[0034] Figure 8 It is a three-dimensional structural schematic diagram of a phase-controlled spray washing tower and a conical flow demisting tower of the present invention, viewed from above and half-cut inside.

[0035] In the figure: 1, phase-controlled spray scrubber; 2, cone-guided demisting tower; 3, limit pipe; 4, connecting pipe; 5, water collecting pipe; 6, first water pump; 7, Z-shaped pipe; 8, concentration reaction tank; 9, second water pump; 10, guide pipe; 11, plate and frame filter press; 12, discharge pipe; 13, motor; 14, stirring shaft; 15, knife frame; 16, blade; 17, fixing frame; 18, threaded screw; 19, nut; 20, guide rod; 21. Big gear; 22. Fixed shaft; 23. Small gear; 24. Limit rod; 25. Rack; 26. Fixed block; 27. Waterproof motor; 28. Positioning gear; 29. ​​Slide; 30. Upper liquid pipe; 31. Spray pipe; 32. Guide cone; 33. Ring tower drain trough; 34. L-shaped pipe; 35. Third water pump; 36. Straight pipe; 37. First delivery pipe; 38. Second delivery pipe; 39. Smoke inlet pipe; 40. Smoke exhaust pipe. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figure 1-8The present invention provides a technical solution: a phase-controlled spray cone-guided wet dust removal device, comprising a phase-controlled spray washing tower 1, a cone-guided demister tower 2 and a limit pipe 3 whose two ends are fixedly plugged between the phase-controlled spray washing tower 1 and the cone-guided demister tower 2, respectively, a spray component and a demister component are respectively arranged in the phase-controlled spray washing tower 1 and the cone-guided demister tower 2, a connecting pipe 4 is fixedly plugged at the bottom of the front side of the phase-controlled spray washing tower 1 and the cone-guided demister tower 2, a water collecting pipe 5 is fixedly installed at the other end of the connecting pipe 4, a first water pump 6 is arranged at the other end of the water collecting pipe 5, and the other end of the first water pump 6 A Z-shaped tube 7 is provided, and the other end of the Z-shaped tube 7 is fixedly connected to a concentration reaction tank 8, a second water pump 9 is fixedly installed on the bottom of one side of the concentration reaction tank 8, a guide pipe 10 is provided at the other end of the second water pump 9, a plate and frame filter press 11 is provided at the other end of the guide pipe 10, and a discharge pipe 12 is provided on the other side of the plate and frame filter press 11, and a motor 13 is fixedly installed on the top of the concentration reaction tank 8, a driving shaft of the motor 13 rotates and penetrates the concentration reaction tank 8 and is provided with two stirring shafts 14, a knife body frame 15 is provided on the front side of one of the stirring shafts 14, and a blade 16 is provided on the front side of the knife body frame 15.

[0038] During specific implementation, after adding water treatment agents into the concentration reaction tank 8 to flocculate and precipitate turbid water, impurities will solidify. In order to avoid the problem of clogging of the second water pump 9, the motor 13 can be turned on so that the driving shaft of the motor 13 drives the stirring shaft 14 and the blade frame 15 to move, so that the blade 16 can cut the solidified impurities, which can be conveniently transported to the plate and frame filter press 11 by the second water pump 9.

[0039] See also Figure 1-8 As shown, the spray assembly includes a plurality of upper liquid pipes 30, which are fixedly plugged into one side of the phase-controlled spray washing tower 1, and the upper liquid pipe 30 is used to connect to an external water source. A plurality of spray pipes 31 are fixedly installed in the phase-controlled spray washing tower 1, and a water spray head is arranged at the bottom of the spray pipe 31, and the spray pipe 31 is connected to the upper liquid pipe 30. The demisting assembly includes a guide cone 32, and two connecting rods are symmetrically arranged at the bottom of the guide cone 32, and the other end of the connecting rod is installed on the inner side wall of the cone-guide demisting tower 2. There is a gap between the guide cone 32 and the cone-guide demisting tower 2, and the top and bottom of the guide cone 32 are both provided with arc slopes. Two annular tower drain grooves 33 are arranged in the cone-guide demisting tower 2, and the annular tower drain grooves 33 are located below the guide cone 32;

[0040] It also includes a water circulation component, which includes an L-shaped pipe 34, which is fixedly plugged into one side of the phase-controlled spray washing tower 1, and a third water pump 35 is provided at the other end of the L-shaped pipe 34, and a straight pipe 36 is provided at the other end of the third water pump 35, and the straight pipe 36 is fixedly connected to the upper liquid pipe 30, and a first delivery pipe 37 is fixedly plugged into the rear side of the concentration reaction tank 8, and the other end of the first delivery pipe 37 is fixedly plugged into the phase-controlled spray washing tower 1, and a second delivery pipe 38 is also provided on one side of the plate and frame filter press 11, and the other end of the second delivery pipe 38 is fixedly plugged into one side of the concentration reaction tank 8, a smoke inlet pipe 39 is fixedly plugged into one side of the phase-controlled spray washing tower 1, and a smoke exhaust pipe 40 is fixedly plugged into one side of the cone-guided demisting tower 2.

[0041] In specific implementation, based on the above implementation, a certain proportion of water should be added to the industrial kiln during the process of material selection, batching and mixing. The purpose of adding water is to form the material layer and suppress dust. At the same time, lime should be added. The added lime should pass through a lime digester. This part of lime removes most of the acidic substances in the material ore during calcination or combustion. A large amount of dust-containing steam will be generated in the above production process, so it is necessary to remove dust from the flue gas. First, the flue gas is introduced into the phase-controlled spray scrubber 1 through the smoke inlet pipe 39, so that the flue gas The phase-controlled spray washing tower 1 enters tangentially from the lower part and rises around the tower. Since the spray pipe 31 is arranged in the phase-controlled spray washing tower 1, the dust and droplets in the dust-containing steam can be washed by fully cooperating with the positive upward airflow and the reverse downward spraying, and the dust and droplets are sunk to the bottom of the phase-controlled spray washing tower 1 with the spray water. The collected liquid is roughly precipitated at the bottom of the phase-controlled spray washing tower 1. The clear liquid at the upper layer at the bottom of the phase-controlled spray washing tower 1 can be used as circulating water by starting the third water pump 35 to cooperate with the straight pipe 36 and the upper liquid pipe 30 to be introduced into the spray pipe 31 for recycling;

[0042] The turbid liquid at the bottom of the phase-controlled spray scrubber 1 is discharged into the concentration reaction tank 8 for water treatment. The dust-containing steam still carries droplets, mist droplets and a small amount of dust after being washed by the phase-controlled spray scrubber 1. It is connected to the cone-guided demister 2 through the limit pipe 3 at the upper part of the phase-controlled spray scrubber 1. Since the cone-guided demister 2 is provided with a guide cone 32 at the upper part, the airflow is pushed to the tower wall end of the cone-guided demister 2 through the upper arc of the guide cone 32. A small gap is left between the guide cone 32 and the inner tower wall of the phase-controlled spray scrubber 1, thereby accelerating the flue gas flow rate, causing the droplets, mist droplets and a small amount of dust to collide with the tower wall and the guide cone 32, forming a water film on the tower wall and the guide cone 32, gathering and absorbing the droplets, mist droplets and a small amount of dust, achieving the effect of demisting and dust collection, and the clean flue gas is discharged from the exhaust pipe 40 at the lower part of the cone-guided demister 2 to complete the wet dust removal;

[0043] The gap between the spray pipe 31 and the tower wall can be set to a 45° arc angle to guide the airflow to rotate along the tower wall, generate a greater centrifugal force of the airflow, and make it easier for droplets, mist droplets and a small amount of dust to adhere to the tower wall to form a gas-liquid separation and gas-dust separation flow field. By setting the ring tower drain groove 33, the water film generated by the tower wall can be quickly collected and drained. The drainage generated by the double towers above can be turned on the first water pump 6, and the connecting pipe 4, the water collecting pipe 5 and the Z-shaped pipe 7 can be centrally transported to the concentration reaction tank 8 for treatment. After adding water treatment agents, flocculation and precipitation are carried out, and the clear water on the top of the concentration reaction tank 8 can enter the spray pipe 31 through the first conveying pipe 37 for recycling, and the turbid water at the bottom is transported to the plate and frame filter press 11. Under the action of the plate and frame filter press 11, it is squeezed out of the plate and frame filter press 11 to continue the internal circulation. At the same time, the mud discharged from the plate and frame filter press 11 is returned to the material mining area.

[0044] See also Figure 1-8 , and also includes a lifting component for lifting and lowering the blade 16 to cut the solidified impurities. The lifting component includes a fixed frame 17, which is fixedly mounted on the driving shaft of the motor 13. The bottom of the fixed frame 17 is rotatably connected to a threaded screw 18, and a nut 19 is threadedly sleeved on the threaded screw 18. The stirring shaft 14 is fixedly connected to the nut 19. A guide rod 20 is provided at the bottom of the fixed frame 17. The guide rod 20 and the end of the threaded screw 18 away from the motor 13 are both suspended in the air. The nut 19 is movably sleeved on the guide rod 20. The lifting component also includes a driving member for driving the threaded screw 18 to rotate. The driving member includes a large gear 21, which is fixedly sleeved on the threaded screw 18. A fixed shaft 22 is fixedly mounted on the inner top wall of the concentration reaction tank 8, and a small gear 23 is fixedly mounted on the other end of the fixed shaft 22. The fixed shaft 22 is meshedly connected to the small gear 23, and the fixed frame 17 and the fixed shaft 22 do not contact each other.

[0045] During specific implementation, based on the above implementation, the rotation of the driving shaft of the motor 13 will drive the fixed frame 17 to rotate, so that the large gear 21 on the threaded screw 18 engages with the small gear 23 to drive the threaded screw 18 to rotate, so that the nut 19 will drive the stirring shaft 14 to move slowly upward along the direction set by the guide rod 20, which can cut the solidified impurities in different areas of the concentration reaction tank 8, further improve the effect of the second water pump 9 in transporting turbid liquid, and also improve the cutting efficiency.

[0046] See also Figure 1-8A limit rod 24 is fixedly installed in the knife body frame 15, and a rack 25 is slidably sleeved on the limit rod 24. A fixed block 26 is fixedly installed on the front side of the rack 25, and the other end of the fixed block 26 is fixedly connected to the blade 16. A waterproof motor 27 is provided on the rear side of the knife body frame 15. The driving shaft of the waterproof motor 27 rotates and extends into the knife body frame 15 and is fixedly sleeved with a positioning gear 28. The positioning gear 28 is meshed and connected with the rack 25. A cavity and a sliding port 29 are respectively opened inside and on the front side of the knife body frame 15. Both ends of the limit rod 24 are fixedly installed in the cavity, and the fixed block 26 is slidably inserted in the sliding port 29.

[0047] In specific implementation, on the basis of the above implementation, by turning on the waterproof motor 27, the driving shaft of the waterproof motor 27 drives the positioning gear 28 to rotate, so that the positioning gear 28 drives the rack 25, the fixed block 26 and the blade 16 to reciprocate along the direction set by the limit rod 24, which can simulate the sawing action. It can not only help solve the problem of curling of the blade 16, but also further improve the cutting effect, making it easier to cut solidified impurities.

[0048] See also Figure 1-8 The number of the upper liquid pipes 30 is three, and the three upper liquid pipes 30 are arranged at equal intervals. The arrangement of multiple upper liquid pipes 30 can improve the spraying effect and further improve the dust removal effect.

[0049] In combination with the above phase-controlled spray cone flow-guiding wet dust removal device, a phase-controlled spray cone flow-guiding wet dust removal process is provided, which specifically includes the following steps:

[0050] S1: First, the flue gas is introduced into the phase-controlled spray scrubber 1 through the smoke inlet pipe 39, so that the flue gas enters tangentially at the lower part of the phase-controlled spray scrubber 1 and rises around the tower. Since the spray pipe 31 is arranged in the phase-controlled spray scrubber 1, the positive upward airflow and the reverse downward spray are fully coordinated, so that the dust and droplets in the dust-containing steam can be washed and sank to the bottom of the phase-controlled spray scrubber 1 with the spray water, and the collected liquid is roughly precipitated at the bottom of the phase-controlled spray scrubber 1. The clear liquid at the upper layer at the bottom of the phase-controlled spray scrubber 1 can be used as circulating water by starting the third water pump 35 to cooperate with the straight pipe 36 and the upper liquid pipe 30 to be introduced into the spray pipe 31 for recycling;

[0051] The turbid liquid at the bottom of the phase-controlled spray scrubber 1 is discharged into the concentration reaction tank 8 for water treatment. The dust-containing steam still carries droplets, mist droplets and a small amount of dust after being washed by the phase-controlled spray scrubber 1. It is connected to the cone-guided demister 2 through the limit pipe 3 at the upper part of the phase-controlled spray scrubber 1. Since the cone-guided demister 2 is provided with a guide cone 32 at the upper part, the airflow is pushed to the tower wall end of the cone-guided demister 2 through the upper arc of the guide cone 32. A small gap is left between the guide cone 32 and the inner tower wall of the phase-controlled spray scrubber 1, thereby accelerating the flue gas flow rate, causing the droplets, mist droplets and a small amount of dust to collide with the tower wall and the guide cone 32, forming a water film on the tower wall and the guide cone 32, gathering and absorbing the droplets, mist droplets and a small amount of dust, achieving the effect of demisting and dust collection, and the clean flue gas is discharged from the exhaust pipe 40 at the lower part of the cone-guided demister 2 to complete the wet dust removal;

[0052] The gap between the spray pipe 31 and the tower wall can be set to a 45° arc angle to guide the airflow to rotate along the tower wall, generate a greater centrifugal force of the airflow, and make it easier for droplets, mist droplets and a small amount of dust to adhere to the tower wall, forming a gas-liquid separation and gas-dust separation flow field. By setting the ring tower drainage groove 33, the water film generated by the tower wall can be quickly collected and drained. The drainage generated by the double towers above can be turned on the first water pump 6, and the connecting pipe 4, the water collecting pipe 5 and the Z-shaped pipe 7 can be centrally transported to the concentration reaction tank 8 for treatment. After adding water treatment agents, flocculation and precipitation are carried out, and the clear water on the top of the concentration reaction tank 8 can enter the spray pipe 31 through the first delivery pipe 37 for recycling, and the turbid water at the bottom is transported to the plate and frame filter press 11. Under the action of the plate and frame filter press 11, it is squeezed out of the plate and frame filter press 11 to continue the internal circulation. At the same time, the mud discharged from the plate and frame filter press 11 is returned to the material mining area;

[0053] S2: After adding water treatment reagents to the above concentration reaction tank 8 to flocculate and precipitate turbid water, impurities will solidify. In order to avoid the problem of clogging of the second water pump 9, the motor 13 can be turned on, so that the driving shaft of the motor 13 drives the stirring shaft 14 and the blade frame 15 to move, so that the blade 16 can cut the solidified impurities, so that they can be conveniently transported to the plate and frame filter press 11 by the second water pump 9;

[0054] S3: In S2, the rotation of the drive shaft of the motor 13 drives the fixed frame 17 to rotate, so that the large gear 21 on the threaded screw 18 is meshed with the small gear 23 to drive the threaded screw 18 to rotate, so that the nut 19 drives the stirring shaft 14 to move slowly upward along the direction set by the guide rod 20, so that the solidified impurities in different areas of the concentration reaction tank 8 can be cut, which can further improve the effect of the second water pump 9 in conveying turbid liquid and also improve the cutting efficiency;

[0055] S4: In S2, the waterproof motor 27 is turned on so that the driving shaft of the waterproof motor 27 drives the positioning gear 28 to rotate, so that the positioning gear 28 drives the rack 25, the fixing block 26 and the blade 16 to reciprocate along the direction set by the limiting rod 24, which can simulate the sawing action. It can not only help solve the problem of curling of the blade 16, but also further improve the cutting effect, making it easier to cut solidified impurities.

Claims

1. A phase-controlled spray cone flow-guiding wet dust removal device, characterized in that: The invention comprises a phase-controlled spray washing tower (1), a conical flow demisting tower (2), and a limit pipe (3) whose two ends are respectively fixedly plugged between the phase-controlled spray washing tower (1) and the conical flow demisting tower (2), wherein the phase-controlled spray washing tower (1) and the conical flow demisting tower (2) are respectively provided with a spray component and a demisting component, and the bottom of the front side of the phase-controlled spray washing tower (1) and the conical flow demisting tower (2) are both fixedly plugged with a connecting pipe (4), the other end of the connecting pipe (4) is fixedly installed with a water collecting pipe (5), the other end of the water collecting pipe (5) is provided with a first water pump (6), the other end of the first water pump (6) is provided with a Z-shaped pipe (7), and the other end of the Z-shaped pipe (7) is fixedly connected to the bottom of the front side of the phase-controlled spray washing tower (1) and the conical flow demisting tower (2). A concentration reaction tank (8) is connected, a second water pump (9) is fixedly installed at the bottom of one side of the concentration reaction tank (8), a guide pipe (10) is arranged at the other end of the second water pump (9), a plate-frame filter press (11) is arranged at the other end of the guide pipe (10), a discharge pipe (12) is arranged at the other side of the plate-frame filter press (11), a motor (13) is fixedly installed at the top of the concentration reaction tank (8), a drive shaft of the motor (13) rotates through the concentration reaction tank (8) and is provided with two stirring shafts (14), a knife frame (15) is arranged at the front side of one of the stirring shafts (14), and a blade (16) is arranged at the front side of the knife frame (15); The spray assembly comprises a plurality of upper liquid pipes (30), the upper liquid pipes (30) are fixedly plugged into one side of the phase-controlled spray washing tower (1), and the upper liquid pipes (30) are used to connect to an external water source. A plurality of spray pipes (31) are fixedly installed in the phase-controlled spray washing tower (1), and a water spray head is arranged at the bottom of the spray pipe (31). The spray pipe (31) is connected to the upper liquid pipe (30). The demisting assembly comprises a guide cone (32), and two connecting rods are symmetrically arranged at the bottom of the guide cone (32), and the other end of the connecting rod is arranged on the inner side wall of the conical flow-guiding demisting tower (2). A spacing is reserved between the guide cone (32) and the conical flow-guiding demisting tower (2), and the top and bottom of the guide cone (32) are both arranged with arc slopes. Two annular tower drain grooves (33) are arranged in the conical flow-guiding demisting tower (2), and the annular tower drain grooves (33) are located below the guide cone (32).

2. A phase-controlled spray cone flow-guiding wet dust removal device as claimed in claim 1, characterized in that: The invention also comprises a lifting assembly for lifting a blade (16) to cut solidified impurities, the lifting assembly comprising a fixed frame (17), the fixed frame (17) being fixedly mounted on a driving shaft of a motor (13), a threaded screw (18) being rotatably connected to the bottom of the fixed frame (17), a nut (19) being threadedly sleeved on the threaded screw (18), the stirring shaft (14) being fixedly connected to the nut (19), a guide rod (20) being arranged at the bottom of the fixed frame (17), the guide rod (20) and the end of the threaded screw (18) away from the motor (13) being both suspended in the air, the nut (19) being movably sleeved on the guide rod (20), and the lifting assembly further comprising a driving member for driving the threaded screw (18) to rotate.

3. A phase-controlled spray cone flow-guiding wet dust removal device as claimed in claim 2, characterized in that: The driving member comprises a large gear (21), the large gear (21) is fixedly sleeved on a threaded screw (18), a fixed shaft (22) is fixedly mounted on the inner top wall of the concentration reaction tank (8), a small gear (23) is fixedly mounted on the other end of the fixed shaft (22), the fixed shaft (22) is meshingly connected with the small gear (23), and the fixed frame (17) and the fixed shaft (22) do not contact each other.

4. A phase-controlled spray cone flow-guiding wet dust removal device as claimed in claim 3, characterized in that: A limit rod (24) is fixedly installed in the blade frame (15), a rack (25) is slidably sleeved on the limit rod (24), a fixed block (26) is fixedly installed on the front side of the rack (25), the other end of the fixed block (26) is fixedly connected to the blade (16), a waterproof motor (27) is arranged on the rear side of the blade frame (15), a driving shaft of the waterproof motor (27) is rotatably extended into the blade frame (15) and fixedly sleeved with a positioning gear (28), and the positioning gear (28) is meshingly connected with the rack (25).

5. A phase-controlled spray cone flow-guiding wet dust removal device as claimed in claim 4, characterized in that: The interior and front side of the blade frame (15) are respectively provided with a cavity and a sliding opening (29); both ends of the limiting rod (24) are fixedly installed in the cavity; and the fixing block (26) is slidably inserted in the sliding opening (29).

6. A phase-controlled spray cone flow-guiding wet dust removal device as claimed in claim 5, characterized in that: The number of the upper liquid pipes (30) is three, and the three upper liquid pipes (30) are arranged at equal intervals.

7. A phase-controlled spray cone flow-guiding wet dust removal device as claimed in claim 6, characterized in that: The invention also comprises a water circulation component, wherein the water circulation component comprises an L-shaped pipe (34), wherein the L-shaped pipe (34) is fixedly plugged into one side of the phase-controlled spray washing tower (1), wherein a third water pump (35) is arranged at the other end of the L-shaped pipe (34), wherein a straight pipe (36) is arranged at the other end of the third water pump (35), wherein the straight pipe (36) is fixedly connected to the upper liquid pipe (30), wherein a first delivery pipe (37) is fixedly plugged into the rear side of the concentration reaction tank (8), wherein the other end of the first delivery pipe (37) is fixedly plugged into the phase-controlled spray washing tower (1), and wherein a second delivery pipe (38) is also arranged at one side of the plate and frame filter press (11), wherein the other end of the second delivery pipe (38) is fixedly plugged into one side of the concentration reaction tank (8).

8. A phase-controlled spray cone flow-guiding wet dust removal device as claimed in claim 7, characterized in that: A smoke inlet pipe (39) is fixedly plugged into one side of the phase-controlled spray scrubbing tower (1), and a smoke exhaust pipe (40) is fixedly plugged into one side of the conical flow-guiding demister tower (2).

9. A phase-controlled spray cone flow-guiding wet dust removal process, characterized in that: The phase-controlled spray cone flow-guiding wet dust removal device according to claim 8 comprises the following steps: S1: In the process of selecting, batching and mixing materials, a certain proportion of water must be added to the industrial kiln. The purpose of adding water is to form the material layer and suppress dust. At the same time, lime must be added. The added lime must pass through a lime digester. This part of lime removes most of the acidic substances in the material ore during the calcination or combustion process. A large amount of dust-containing steam will be generated in the above production process, so it is necessary to remove dust from the flue gas. First, the flue gas is introduced into the phase-controlled spray scrubber (1) through the smoke inlet pipe (39), so that the flue gas is in the lower part of the phase-controlled spray scrubber (1). Entering tangentially and ascending in a circular tower, since a spray pipe (31) is arranged in the phase-controlled spray washing tower (1), the positive upward airflow and the reverse downward spraying fully cooperate to wash the dust and liquid droplets in the dust-containing steam, and sink to the bottom of the phase-controlled spray washing tower (1) with the spray water, and the collected liquid is roughly precipitated at the bottom of the phase-controlled spray washing tower (1). The clear liquid at the upper layer at the bottom of the phase-controlled spray washing tower (1) can be used as circulating water by starting the third water pump (35) in conjunction with the straight pipe (36) and the upper liquid pipe (30) to be introduced into the spray pipe (31) for recycling; The turbid liquid at the bottom of the phase-controlled spray scrubber (1) is discharged into a concentration reaction tank (8) for water treatment. The dust-containing steam still carries liquid droplets, mist droplets and a small amount of dust after being washed by the phase-controlled spray scrubber (1). The dust-containing steam is connected to the cone-shaped guide demister (2) through a limit pipe (3) at the top of the phase-controlled spray scrubber (1). Since a guide cone (32) is arranged at the top of the cone-shaped guide demister (2), the airflow is pushed to the cone-shaped guide demister (2) through the upper circular arc of the guide cone (32). At the tower wall end of the guide demister tower (2), a small gap is left between the guide cone (32) and the inner tower wall of the phase-controlled spray scrubber (1), thereby accelerating the flue gas flow rate, causing liquid droplets, mist droplets and a small amount of dust to collide with the tower wall and the guide cone (32), forming a water film on the tower wall and the guide cone (32), collecting and absorbing the liquid droplets, mist droplets and a small amount of dust, thereby achieving the effects of demisting and collecting dust. The clean flue gas is discharged from the exhaust pipe (40) at the bottom of the cone guide demister tower (2), thereby completing wet dust removal; The gap between the spray pipe (31) and the tower wall can be set to an angle of 45°, so as to guide the airflow to rotate along the tower wall, generate a greater centrifugal force of the airflow, and make it easier for droplets, mist droplets and a small amount of dust to adhere to the tower wall, thereby forming a gas-liquid separation and gas-dust separation flow field. By setting the ring tower drainage groove (33), the water film generated by the tower wall can be quickly collected and drained. The drainage generated by the double towers above can be transported to the concentration reaction tank (8) for treatment by starting the first water pump (6), cooperating with the connecting pipe (4), the water collecting pipe (5) and the Z-shaped pipe (7). After adding a water treatment agent, flocculation and precipitation are carried out. The clear water on the top of the concentration reaction tank (8) can enter the spray pipe (31) through the first delivery pipe (37) for recycling, and the turbid water on the bottom is transported to the plate-frame filter press (11). Under the action of the plate-frame filter press (11), it is squeezed out of the plate-frame filter press (11) and continues to circulate internally. At the same time, the mud discharged from the plate-frame filter press (11) is returned to the material mining area. S2: After adding water treatment agents to the above concentration reaction tank (8) to flocculate and precipitate turbid water, impurities will solidify. In order to avoid the problem of clogging of the second water pump (9), the motor (13) can be turned on, so that the driving shaft of the motor (13) drives the stirring shaft (14) and the blade frame (15) to move, so that the blade (16) can cut the solidified impurities, so that they can be conveniently transported to the plate and frame filter press (11) by the second water pump (9); S3: In S2, the rotation of the drive shaft of the motor (13) drives the fixed frame (17) to rotate, so that the large gear (21) on the threaded screw (18) meshes with the small gear (23) to drive the threaded screw (18) to rotate, so that the nut (19) drives the stirring shaft (14) to move slowly upward along the direction set by the guide rod (20), so that the solidified impurities in different areas of the concentration reaction tank (8) can be cut; S4: In S2, the waterproof motor (27) is turned on, so that the driving shaft of the waterproof motor (27) drives the positioning gear (28) to rotate, so that the positioning gear (28) drives the rack (25), the fixing block (26) and the blade (16) to reciprocate along the direction set by the limit rod (24), thereby simulating the sawing action.

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