Cement production line gas recycling system with chlorine removal function

Abstract

The present application relates to the technical field of chlorine removal system, in particular to a cement production line gas recycling system with chlorine removal function, which comprises an air suction device, a quenching device, an upper horizontal pipe, a vertical pipe and a lower horizontal pipe, the lower horizontal pipe is vertically communicated with an air outlet main pipe, an external water outlet hole is formed on the cleaning pipe, the cleaning pipe is communicated with a water source through a water inlet pipe and controls water spraying through a control device, a middle pipe is fixedly arranged at the vertical axial center line of the inner pipe, the top surface of the middle pipe is closed and the lower end penetrates through the inner pipe, a limiting iron ring is fixedly arranged at the inner side of the lower part of the middle pipe, a magnet piece is adapted above the limiting iron ring, a rubber plug is fixedly connected to the bottom surface of the magnet piece and seals the limiting iron ring, the inner diameter of the limiting iron ring is consistent with the outer diameter of the cleaning pipe and the cleaning pipe is located directly below the limiting iron ring. The present application realizes the recovery of potassium chloride potassium salt, the heat source is provided by flue gas, after the filtration is completed, the inner pipe is taken down, the cleaned clinker inside is poured into a drying chamber for drying, realizing the recycling of the clinker.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of chlorine removal systems, and particularly relates to a cement production line gas recycling system with a chlorine removal function. BACKGROUND

[0002] Limestone, sandstone, shale, iron and other raw materials are mixed in a certain proportion, ground, and then calcined at high temperature to generate cement clinker. The limestone, sandstone, shale, iron and other raw materials are all from nature and contain different proportions of chloride ions. The chloride ions are solidified in the clinker during the calcination process. However, the chloride ions are strong acid radicals and have strong corrosiveness. In the process of making reinforced concrete, the chloride ions are prone to react with steel bars and alkaline substances generated by hydration of the clinker, thereby affecting the temperature resistance of the concrete and the use safety of the entire building.

[0003] Therefore, the content of chloride ions needs to be strictly controlled during the production of cement clinker, and is generally controlled below 0.06%. If the content exceeds 0.06%, the system will be seriously scaled, and the quality of the clinker will be unqualified. Therefore, a chlorine removal system needs to be arranged in the production process of the clinker to discharge the chloride ions from the firing system.

[0004] The existing chlorine removal system is arranged on the kiln tail smoke chamber to set a gas inlet, and uses a suction device to suck out part of the flue gas, so that the chlorine mixed in the flue gas is discharged. However, when the chlorine is removed in this way, the chlorine ash in the flue gas will be discharged together. Since the flue gas also contains a certain amount of potassium chloride, and the dust is chlorine ash, the flue gas also contains a certain amount of temperature when it is discharged, so to some extent, the potassium, heat and clinker are wasted. SUMMARY

[0005] The application provides a cement production line gas recycling system with a chlorine removal function to solve the defects in the prior art.

[0006] The application is implemented by the following technical scheme:

[0007] The cement production line gas recycling system with chlorine removal function, wherein, the kiln tail smoke chamber is provided with a gas taking port, the gas taking port is provided with a gas suction device, the gas suction device gas outlet end is communicated with the quenching device, the quenching device gas outlet end is communicated with the upper horizontal pipe, the upper horizontal pipe two sides are communicated with vertical pipes, the two vertical pipes lower ends are communicated through the lower horizontal pipe, the lower horizontal pipe is vertically communicated with the gas outlet main pipe, the gas outlet main pipe lower end is closed and communicated with the first branch pipe and the second branch pipe, the first branch pipe is communicated with the hot gas inlet end of the evaporative crystallizer, the second branch pipe is communicated with the drying device gas inlet end, the vertical pipe is controlled through the electromagnetic valve; The inner tube is coaxially arranged in the vertical pipe, the lower end of the inner tube is slidingly sealed with the through hole, the lower end of the inner tube is closed, the inner tube is provided with a gas outlet hole, the inner wall of the inner tube is wrapped with a dust removal cloth, the upper end of the inner tube is fixedly connected with an iron sheet, and the vertical pipe is fixedly provided with an electromagnet which can adsorb the iron sheet; The cleaning tank is fixedly arranged below the vertical pipe, the liquid storage room is communicated with the evaporation chamber of the evaporative crystallizer through the connecting pipe, the valve is arranged on the connecting pipe, the cleaning pipe is vertically fixedly arranged in the cleaning tank, the outer water outlet hole is arranged on the cleaning pipe, the cleaning pipe is communicated with the water source through the water inlet pipe and controlled to spray water through the control device, the intermediate pipe is fixedly arranged at the vertical center line of the inner tube, the bottom surface of the magnet sheet is fixedly connected with the rubber plug which seals and limits the iron ring, the inner diameter of the limiting iron ring is consistent with the outer diameter of the cleaning pipe, and the cleaning pipe is located directly below the limiting iron ring.

[0008] In operation, the flue gas extracted from the kiln tail flue is cooled to approximately 400 degrees Celsius by a quenching device. Upon cooling, chloride ions crystallize and adhere to the chlorine ash, then enter the upper horizontal pipe with the flue gas. From there, it flows into the corresponding vertical pipe. Inside the vertical pipe, the chlorine ash is filtered by a dust collector cloth within the inner pipe. The flue gas then enters the lower horizontal pipe, and subsequently, through the lower horizontal pipe and the main exhaust pipe, flows into the first and second branch pipes respectively. The flue gas in the first and second branch pipes provides heat support for the evaporator crystallizer and the drying device, respectively, thus achieving efficient utilization of heat in the flue gas. After collecting chlorine ash for a period of time, the dust collector cloth first closes the solenoid valve on the corresponding side and opens the solenoid valve on the other side, then closes it again. On this side, the electromagnet causes the inner tube to slide out of the vertical tube through the outlet hole under gravity and fall vertically downwards within the outlet hole's constraint. This allows the cleaning tube to be inserted into the intermediate tube. A control device then sprays water from the outlet water hole through the cleaning tube, allowing the water to pass through the dust removal cloth and enter the intermediate tube, cleaning the chlorine ash inside. During cleaning, potassium chloride on the chlorine ash mixes with water to form a potassium chloride solution. This solution enters the liquid storage chamber. When needed, the corresponding valve is opened, allowing the liquid to enter the evaporator crystallizer, where it evaporates and crystallizes into potassium chloride crystals, achieving potassium salt recovery. The heat source is provided for the flue gas. After filtration, the inner tube is removed, and the cleaned clinker inside is poured into the drying chamber for drying, achieving clinker recycling. The combination of the limiting iron ring, magnetic plate, and rubber stopper ensures a seal on the intermediate tube. When the inner tube falls, it is pushed away by the cleaning tube and returns to its original position under gravity when the inner tube moves upwards.

[0009] Preferably, the control device includes an inner water inlet pipe that is sealed at the top and internally slidably sealed within the cleaning pipe. The top surface of the inner water inlet pipe is fixedly connected to the inner wall of the top surface of the cleaning pipe by a spring. The inner water inlet pipe extends out of the cleaning tank and is connected to an external water source. The inner wall of the top surface of the cleaning pipe is fixedly connected to the top surface of the inner water inlet pipe by a spring. The inner water inlet pipe has internal water outlet holes that are staggered with the external water outlet holes. When the spring is compressed, the external water outlet holes communicate with the internal water outlet holes. When the inner pipe falls, it presses down on the cleaning pipe under gravity. The cleaning pipe slides downwards under pressure, causing the external water outlet holes to align with the internal water outlet holes. This allows water in the inner water inlet pipe to spray out through the internal and external water outlet holes. Since the water is discharged using gravity, automatic water spraying is achieved. When the inner pipe is pulled upwards, the spring pushes the cleaning pipe upwards, causing the external water outlet holes and internal water outlet holes to be staggered.

[0010] As preferred, the lower end of the vertical pipe is closed by a round plate, a circular hole is formed on the round plate, an inner plate is rotatably connected in the circular hole through a sealing bearing, a penetrating hole is arranged on the inner plate, a horizontal shaft is fixedly arranged in the vertical pipe, a through hole is formed on the horizontal shaft, the through hole is rotatably connected with a first rotating shaft through a bearing, a first fan blade is arranged on the first rotating shaft, an inner ring is fixedly arranged in the vertical pipe, the inner ring is rotatably connected with the upper pipe through a bearing, an electromagnet is fixedly arranged on the bottom surface of the upper pipe, the upper pipe is vertically penetrated by the inner pipe, the upper end of the upper pipe is coaxially and fixedly connected with the first rotating shaft. The first fan blade drives the rotation of the first rotating shaft when the gas flows, the rotation of the first rotating shaft drives the rotation of the upper pipe, the rotation of the upper pipe can realize the rotation of the inner pipe, and then the dust cloth in the inner pipe can more uniformly filter the chlorine ash, avoiding the accumulation of chlorine ash in the dust cloth in one position to cause poor filtering effect in the later period. The inner plate is rotatably connected with the round plate, and the sliding sealing between the inner pipe and the inner plate can be realized through the inner plate, and the rotation of the inner pipe can be realized through the rotatable connection.

[0011] As preferred, the lower end of the vertical pipe is closed by a round plate, a circular hole is formed on the round plate, an inner plate is rotatably connected in the circular hole through a sealing bearing, a penetrating hole is arranged on the inner plate, a horizontal shaft is fixedly arranged in the vertical pipe, a through hole is formed on the horizontal shaft, the through hole is rotatably connected with a first rotating shaft through a bearing, a first fan blade is arranged on the first rotating shaft, an inner ring is fixedly arranged in the vertical pipe, the inner ring is rotatably connected with the upper pipe through a bearing, an electromagnet is fixedly arranged on the bottom surface of the upper pipe, the upper pipe is vertically penetrated by the inner pipe, the upper end of the upper pipe is coaxially and fixedly connected with the first rotating shaft. The first fan blade drives the rotation of the first rotating shaft when the gas flows, the rotation of the first rotating shaft drives the rotation of the upper pipe, the rotation of the upper pipe can realize the rotation of the inner pipe, and then the dust cloth in the inner pipe can more uniformly filter the chlorine ash, avoiding the accumulation of chlorine ash in the dust cloth in one position to cause poor filtering effect in the later period. The inner plate is rotatably connected with the round plate, and the sliding sealing between the inner pipe and the inner plate can be realized through the inner plate, and the rotation of the inner pipe can be realized through the rotatable connection.

[0012] As preferred, the rotating device comprises a third rotating shaft coaxially arranged in the air outlet manifold, the third rotating shaft is sleeved with a second fan blade, the second rotating shaft is further sleeved with a first driving bevel gear, the air outlet manifold is transversely provided with a horizontal shaft, both ends of the horizontal shaft are penetrated through the air outlet manifold and are rotatably connected to the air outlet manifold through sealing bearings, the horizontal shaft is sleeved with a first driven bevel gear engaged with the first driving bevel gear, the outer end of the horizontal shaft is sleeved with a second driving bevel gear, the cleaning tank is further provided with a horizontal plate, the horizontal plate is rotatably connected with a vertical shaft through a bearing, the vertical shaft is sleeved with a driving sprocket and a second driven bevel gear engaged with the second driving bevel gear, the outer pipe is sleeved with a driven sprocket, and the driving sprocket and the driven sprocket are driven through a chain. When the gas flows in the air outlet manifold, the rotation of the second fan blade is driven, the rotation of the second fan blade drives the rotation of the third rotating shaft, the rotation of the third rotating shaft drives the rotation of the first driving bevel gear, the rotation of the first driving bevel gear drives the rotation of the first driven bevel gear, the rotation of the first driven bevel gear drives the rotation of the horizontal shaft, the rotation of the horizontal shaft drives the rotation of the second driving bevel gear, and the rotation of the second driving bevel gear drives the rotation of the second driven bevel gear, the rotation of the second driven bevel gear drives the rotation of the vertical shaft, the rotation of the vertical shaft drives the rotation of the driving sprocket, the rotation of the driving sprocket drives the rotation of the driven sprocket, and the rotation of the driven sprocket drives the rotation of the outer pipe, so as to realize the rotation of the inner pipe by using the flue gas power as the power source.

[0013] As preferred, the connecting pipe comprises branch connecting pipes and a total connecting pipe, the branch connecting pipes are communicated with corresponding cleaning tanks, the branch connecting pipes are all communicated on the total connecting pipe and the total connecting pipe is inclined downward to the direction of the liquid storage chamber. The downward inclination of the total connecting pipe can ensure that the water is better retained.

[0014] The application has the advantages that: the application can filter out the potassium chloride-containing chlorination ash in flue gas by using the dust removal cloth, generate potassium chloride solution by using water, recover potassium salt, provide heat source by using flue gas, and after the filtration is completed, the inner pipe is taken down, the cleaned chlorination ash clinker in the inner pipe is poured into the drying chamber for drying, thereby realizing the recycling of the clinker. The flow of flue gas and the flow of water are used as power sources to make the inner pipe and the cleaning pipe rotate in opposite directions, which not only satisfies the back cleaning of the dust removal cloth, but also has higher cleaning efficiency, and the rotation of the inner pipe realizes the throwing of water in the inner pipe. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0016] Figure 1 It is a structural schematic diagram of the present application.

[0017] Figure 2 This is a magnified view of part I;

[0018] Figure 3 yes Figure 1 Enlarged view of part II;

[0019] Figure 4 yes Figure 1 Enlarged view of section III;

[0020] Figure 5 yes Figure 1 A magnified view of part IV.

[0021] As shown in the figure:

[0022] 1. Upper horizontal pipe, 2. Vertical pipe, 3. Lower horizontal pipe, 4. First branch pipe, 5. Second branch pipe, 6. Evaporator / crystallizer, 7. Drying device, 8. Inner pipe 9. Electromagnet; 10. Cleaning tank; 11. Liquid storage chamber; 12. Cleaning pipe; 13. Outlet water hole; 14. Inner water inlet pipe; 15. Inner water outlet hole; 16. Intermediate pipe; 17. Limiting iron ring; 18. Spring; 19. Inner plate; 20. First rotating shaft; 21. First fan blade; 22. Upper pipe; 23. Second rotating shaft; 24. Rotating blade; 25. Inner magnet plate; 26. Outer pipe; 27. Third rotating shaft; 28. Second fan blade; 29. ​​First driving bevel gear; 30. First driven bevel gear; 31. Second driving bevel gear; 32. Second driven bevel gear; 33. Driving sprocket; 34. Driven sprocket; 35. Branch connecting pipe; 36. Main connecting pipe; 37. Sudden cooling device. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Gas recovery and utilization systems for cement production lines with dechlorination functions, such as Figures 1-5As shown. Wherein, the kiln tail smoke chamber is provided with a gas taking port, the gas taking port is provided with a gas suction device, the gas suction device is communicated with the quenching device 37, the quenching device 37 is communicated with the upper horizontal pipe 1, the upper horizontal pipe 1 is communicated with the vertical pipe 2 on both sides, the lower end of the two vertical pipes 2 is communicated through the lower horizontal pipe 3, the lower horizontal pipe 3 is vertically communicated with the gas outlet main pipe, the lower end of the gas outlet main pipe is closed and communicated with the first branch pipe 4 and the second branch pipe 5, the first branch pipe 4 is communicated with the hot gas inlet end of the evaporative crystallizer 6, the second branch pipe 5 is communicated with the gas inlet end of the drying device 7, the vertical pipe 2 is controlled by the electromagnetic valve; The inner tube 8 is coaxially arranged in the vertical pipe 2, the lower end of the vertical pipe 2 is provided with a through hole, the lower end of the inner tube 8 is slidingly sealed with the through hole and the lower end of the inner tube 8 is closed, the inner tube 8 is provided with a gas outlet hole and the inner wall of the inner tube 8 is wrapped with a dust removal cloth, the upper end of the inner tube 8 is fixedly connected with an iron sheet, the vertical pipe 2 is fixedly provided with an electromagnet 9 capable of attracting the iron sheet, the electromagnet 9 is in the form of a ring; The cleaning tank 10 is fixedly arranged below the vertical pipe 2, the cleaning tank 10 is communicated with the liquid storage chamber 11 at the lower part, the liquid storage chamber 11 is communicated with the evaporation chamber of the evaporative crystallizer 6 through the connecting pipe, the valve is arranged on the connecting pipe, the cleaning pipe 12 is vertically fixedly arranged in the cleaning tank 10, the outer water outlet hole 13 is arranged on the cleaning pipe 12, the cleaning pipe 12 is communicated with the water source through the water inlet pipe and is controlled to spray water by the control device, the intermediate tube 16 is fixedly arranged at the vertical center line of the inner tube 8 and is closed at the top surface and penetrates through the inner tube 8 at the lower end, the limiting iron ring 17 is fixedly arranged at the inner side of the intermediate tube 16 at the lower part, the magnet sheet is adapted above the limiting iron ring 17, the rubber plug is fixedly connected to the limiting iron ring 17 at the bottom surface of the magnet sheet, the inner diameter of the limiting iron ring 17 is consistent with the outer diameter of the cleaning pipe 12 and the cleaning pipe 12 is located directly below the limiting iron ring 17.

[0025] Wherein, the evaporative crystallizer 6 and the drying device 7 are both prior art, so the principle thereof will not be described in detail.

[0026] The control device comprises the inner water inlet pipe 14 which is closed at the top surface and is slidingly sealed in the cleaning pipe 12, the inner water inlet pipe 14 is fixedly connected between the top surface of the cleaning pipe 12 and the inner wall of the top surface by the spring 18, the inner water inlet pipe 14 penetrates through the cleaning tank 10 and is communicated with the water source outside, the cleaning pipe 12 is fixedly connected between the inner wall of the top surface and the top surface of the inner water inlet pipe 14 by the spring 18, the inner water inlet pipe 14 is respectively provided with the inner water outlet hole 15 which is misalignedly distributed with the outer water outlet hole 13 at the side surface, when the spring 18 is compressed, the outer water outlet hole 13 is communicated with the inner water outlet hole 15.

[0027] The lower end of the vertical pipe 2 is closed by a circular plate, a circular hole is formed in the circular plate, an inner plate 19 is rotatably connected in the circular hole through a sealing bearing, a through hole is formed in the inner plate 19, a horizontal shaft is fixedly arranged in the vertical pipe 2, a through hole is formed in the horizontal shaft, the first rotating shaft 20 is rotatably connected to the through hole through a bearing, the first rotating shaft 20 is provided with the first fan blade 21, an inner ring is fixedly arranged in the vertical pipe, the inner ring is rotatably connected to the upper pipe through a bearing, the electromagnet 9 is fixedly arranged on the bottom surface of the upper pipe 22, the upper pipe 22 is vertically penetrated by the inner pipe, the upper end of the upper pipe 22 is coaxially and fixedly connected to the first rotating shaft 20, specifically, a horizontal rod is fixedly arranged at the upper end of the inner pipe, and the first rotating shaft is vertically connected to the horizontal rod.

[0028] The inner wall of the cleaning pipe 12 is vertically provided with a clamping groove at the lower part, a clamping block is slidably matched in the clamping groove, the clamping block is fixedly connected with the inner water inlet pipe 14, the lower end of the inner water inlet pipe 14 penetrates the cleaning tank 10 and is coaxially and rotatably connected with the upper end of the water inlet pipe through a sealing bearing, the water inlet pipe is coaxially provided with the second rotating shaft 23 which is fixedly connected with the inner water inlet pipe 14, and the second rotating shaft 23 is sleeved with the rotating paddle 24; the bottom surface of the intermediate pipe 16 is fixedly provided with an iron ring gasket, the bottom surface of the cleaning chamber is provided with a circular through groove, the inner magnet plate 25 is rotatably connected in the circular through groove through a sealing bearing, the inner water inlet pipe 14 penetrates the inner magnet plate 25 and is rotatably connected with the inner magnet plate 25 through a sealing bearing, the bottom surface of the inner magnet plate 25 is fixedly connected with the outer pipe 26, the inner water inlet pipe 14 is coaxially and penetrates the outer pipe 26, the outer pipe 26 is driven to rotate by the rotating device and the rotating direction is opposite to that of the inner water inlet pipe 14, the top surface of the cleaning pipe 12 is vertically connected with a rotating shaft at the center, and the rotating shaft is sleeved with the rotating support plate through a bearing. The rotating support plate not only plays a role, but also reduces the friction between the inner pipe 8 and the cleaning pipe 12.

[0029] The rotating device includes the third rotating shaft 27 which is coaxially arranged in the gas outlet manifold, the second fan blade 28 is sleeved on the third rotating shaft 27, the first driving bevel gear 29 is further sleeved on the second rotating shaft 23, the horizontal shaft is transversely arranged in the gas outlet manifold, the horizontal shaft penetrates the gas outlet manifold at both ends and is rotatably connected at the penetrating positions through sealing bearings, the horizontal shaft is sleeved with the first driven bevel gear 30 which is engaged with the first driving bevel gear 29, the second driving bevel gear 31 is sleeved on the outer end of the horizontal shaft, the cleaning tank 10 is further provided with a horizontal plate, the vertical shaft is rotatably connected to the horizontal plate through a bearing, the driving sprocket 33 and the second driven bevel gear 32 which is engaged with the second driving bevel gear 31 are sleeved on the vertical shaft, the driven sprocket 34 is sleeved on the outer pipe 26, and the driving sprocket 33 and the driven sprocket 34 are driven by a chain.

[0030] In use, the kiln tail smoke chamber is extracted through the quenching device 37, and the temperature is reduced to about 400 degrees. The temperature is reduced, and the chloride ions are crystallized and attached to the chlorine ash and enter the upper horizontal pipe 1 with the flue gas. The chlorine ash is filtered by the dust cloth in the inner pipe 8 after entering the corresponding vertical pipe 2. The flue gas enters the lower horizontal pipe 3 through the vertical pipe 2, and then enters the first branch pipe 4 and the second branch pipe 5 through the lower horizontal pipe 3 and the gas outlet manifold, respectively. The flue gas in the first branch pipe 4 and the second branch pipe 5 can provide heat support for the evaporative crystallizer 6 and the drying device 7, thereby realizing the rational utilization of heat in the flue gas. After collecting the chlorine ash for a period of time, the dust cloth is closed first, the electromagnetic valve on the corresponding side is opened, and then the electromagnetic iron 9 on the side is closed. The inner pipe 8 slides out of the vertical pipe 2 from the through hole under the action of gravity and falls vertically under the limitation of the through hole, so that the cleaning pipe 12 is inserted into the intermediate pipe 16. The falling inner pipe 8 presses the cleaning pipe 12 under the action of gravity. The cleaning pipe 12 slides downward under the pressure and makes the outer water outlet hole 13 opposite to the inner water outlet hole 15, so that the water in the inner water inlet pipe 14 is sprayed out through the inner water outlet hole 15 and the outer water outlet hole 13. Since the water is sprayed out by using gravity, automatic water spraying and washing can be realized. When the inner pipe 8 is pulled upward, the spring 18 pushes the cleaning pipe 12 upward, so that the outer water outlet hole 13 and the inner water outlet hole 15 are distributed in different positions.

[0031] The water enters the intermediate pipe 16 through the dust cloth, and the chlorine ash in the intermediate pipe 16 is cleaned. During cleaning, the potassium chloride on the chlorine ash is combined with water to form a potassium chloride solution. The solution enters the liquid storage chamber 11. When needed, the corresponding valve is opened to make the liquid enter the evaporative crystallizer 6. The evaporation crystallization is potassium chloride crystals, which realizes the recovery of potassium salt. The heat source is provided by flue gas. After filtration is completed, the inner pipe 8 is removed, and the clinker inside is cleaned and poured into the drying chamber for drying, realizing the recycling of chlorine ash clinker. The cooperation of the limiting iron ring 17, the magnet piece and the rubber plug can realize the sealing of the intermediate pipe 16. When the inner pipe 8 falls, it leaves this position under the push of the cleaning pipe 12. When the inner pipe 8 is moved upward, it can be reset under the action of gravity. During cleaning, the cleaning water enters the inner pipe 8 in the opposite direction of the dust cloth filter, so that the chlorine ash on the dust cloth can be washed and cleaned better.

[0032] The first fan blade 21 drives the rotation of the first rotating shaft 20 when the gas flows. The rotation of the first rotating shaft 20 drives the rotation of the first magnet block 22, and then drives the rotation of the second magnet block, realizing the rotation of the inner pipe 8, and making the dust cloth in the inner pipe 8 filter the chlorine ash more uniformly, avoiding the accumulation of chlorine ash in the dust cloth in one position, which leads to poor filtering effect in the later period. The inner plate and the circular plate are rotationally connected, which can realize the sliding sealing with the inner pipe 8 through the inner plate, and meet the rotation of the inner pipe 8 through the rotational connection.

[0033] When the inner tube 8 falls on the cleaning tube 12, the cleaning water flows in the water inlet pipe when being sprayed, thereby driving the rotation of the rotating paddle 24, the rotation of the rotating paddle 24 drives the rotation of the second rotating shaft 23, the rotation of the second rotating shaft 23 drives the rotation of the inner water inlet pipe 14, the rotation of the inner water inlet pipe 14 drives the synchronous rotation of the cleaning tube 12 through the cooperation of the clamping block and the clamping groove, thereby realizing uniform water spraying, and further realizing more clean washing of the dust cloth. The rotating device drives the rotation of the outer tube 26, thereby driving the rotation of the inner magnet plate 25 through the rotation of the outer tube 26, the rotation of the inner magnet plate 25 drives the rotation of the inner tube 8, and the rotation direction of the inner tube 8 is opposite to that of the cleaning tube 12, thereby realizing better washing effect. At the same time, the rotation of the inner tube 8 can realize the effect of dehydration, and better shake out the water from the inner tube 8.

[0034] At the same time, the gas flowing in the gas outlet manifold drives the rotation of the second fan blade 28, the rotation of the second fan blade 28 drives the rotation of the third rotating shaft 27, the rotation of the third rotating shaft 27 drives the rotation of the first driving bevel gear 29, the rotation of the first driving bevel gear 29 drives the rotation of the first driven bevel gear 30, the rotation of the first driven bevel gear 30 drives the rotation of the horizontal shaft, the rotation of the horizontal shaft drives the rotation of the second driving bevel gear 31, thereby driving the rotation of the second driven bevel gear 32, the rotation of the second driven bevel gear 32 drives the rotation of the vertical shaft, the rotation of the vertical shaft drives the rotation of the driving sprocket 33, the rotation of the driving sprocket 33 drives the rotation of the driven sprocket 34, thereby driving the rotation of the outer tube 26, thereby realizing the rotation of the inner tube 8 by using the smoke power as a power source.

[0035] The connecting pipe includes branch connecting pipes 35 and a total connecting pipe 36, the branch connecting pipes 35 are communicated with corresponding cleaning tanks 10, the branch connecting pipes 35 are all communicated on the total connecting pipe 36, and the total connecting pipe 36 is inclined downward to the direction of the liquid storage chamber 11. The downward inclination of the total connecting pipe 36 can ensure that the water is better retained.

[0036] The use of the present application can filter out the chlorate containing potassium chloride in the smoke by using the dust cloth, and generate potassium chloride solution by using water, and the potassium salt is recovered, and the heat source is provided by the smoke. After the filtration is completed, the inner tube 8 is removed, the cleaned chlor-alkali clinker in the inner tube 8 is poured into the drying chamber for drying, and the clinker is recycled. At the same time, the flow of the smoke and the flow of the water are used as power, so that the inner tube 8 and the cleaning tube 12 rotate in opposite directions, which not only satisfies the back washing of the dust cloth, but also has higher cleaning efficiency. Through the rotation of the inner tube 8, the water in the inner tube 8 is shaken out. At the same time, the hot gas does not contact with the water, which can ensure that the hot gas maintains its heat as much as possible, thereby realizing better heating.

[0037] It should be pointed out finally that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit the same; and although the present application has been described in detail with reference to the foregoing embodiments, it should be appreciated by those skilled in the art that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features thereof can be replaced equivalently; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A cement production line gas recycling system with dechlorination function, characterized in that: The kiln tail smoke chamber is provided with a gas taking port, the gas taking port is provided with a gas suction device, the gas suction device is communicated with the quenching device at the gas outlet end, the quenching device is communicated with the upper horizontal pipe at the gas outlet end, the upper horizontal pipe is communicated with vertical pipes at both sides, the lower ends of the two vertical pipes are communicated through the lower horizontal pipe, the lower horizontal pipe is vertically communicated with the gas outlet main pipe, the lower end of the gas outlet main pipe is closed and communicated with the first branch pipe and the second branch pipe, the first branch pipe is communicated with the hot gas inlet end of the evaporative crystallizer, the second branch pipe is communicated with the gas inlet end of the drying device, the vertical pipe is controlled by the electromagnetic valve; a coaxial inner tube is arranged in the vertical pipe, a through hole is formed in the lower end surface of the vertical pipe, the lower end of the inner tube is slidingly sealed with the through hole and the lower end of the inner tube is closed, the inner tube is provided with a gas outlet hole and the inner wall of the inner tube is wrapped with a dust removal cloth, an iron sheet is fixedly connected to the upper end edge of the inner tube, and an electromagnet capable of attracting the iron sheet is fixedly arranged in the vertical pipe; a cleaning tank is fixedly arranged below the vertical pipe, a liquid storage chamber is communicated with the lower part of the cleaning tank, the liquid storage chamber and the evaporation chamber of the evaporative crystallizer are communicated through a connecting pipe, a valve is arranged on the connecting pipe, a cleaning pipe is vertically fixedly arranged in the cleaning tank, an outer water outlet hole is formed in the cleaning pipe, the cleaning pipe is communicated with a water source through a water inlet pipe and is controlled to spray water by a control device, a middle pipe with a closed top surface and a lower end penetrating the inner tube is fixedly arranged at the vertical center line of the inner tube, a limiting iron ring is fixedly arranged on the inner side of the middle pipe, a magnet sheet is fitted above the limiting iron ring, a rubber plug is fixedly connected to the bottom surface of the magnet sheet to limit the limiting iron ring, the inner diameter of the limiting iron ring is consistent with the outer diameter of the cleaning pipe, and the cleaning pipe is located directly below the limiting iron ring, and the control device comprises an inner water inlet pipe which is closed at the top and slidingly sealed in the cleaning pipe, the inner water inlet pipe is fixedly connected between the top surface of the cleaning pipe and the inner wall of the top surface of the cleaning pipe through a spring, the inner water inlet pipe penetrates the cleaning tank and is communicated with an external water source, the inner wall of the top surface of the cleaning pipe and the top surface of the inner water inlet pipe are fixedly connected through a spring, and the side surface of the inner water inlet pipe is provided with inner water outlet holes which are misaligned with the outer water outlet holes.

2. The cement production line gas recycling system with dechlorination function according to claim 1, characterized in that: The lower end of the vertical pipe is closed by a circular plate, a circular hole is formed in the circular plate, an inner plate is rotatably connected in the circular hole through a sealing bearing, the through hole is arranged on the inner plate, a horizontal shaft is fixedly arranged in the vertical pipe, a through hole is formed in the horizontal shaft, the first rotating shaft is rotatably connected to the through hole through a bearing, the first rotating shaft is provided with a first fan blade, an inner ring is fixedly arranged in the vertical pipe, the inner ring is rotatably connected to the upper pipe through a bearing, the electromagnet is fixedly arranged on the bottom surface of the upper pipe, the upper pipe penetrates the inner tube in an up-down direction, and the upper end of the upper pipe is coaxial with and fixedly connected to the first rotating shaft.

3. The cement production line gas recycling system with dechlorination function according to claim 2, characterized in that: The lower part of the inner wall of the cleaning pipe is vertically provided with a clamping groove, and a clamping block is slidingly matched in the clamping groove. The clamping block is fixedly connected with the inner cleaning pipe. The lower end of the inner cleaning pipe penetrates out of the cleaning tank and is coaxially connected with the upper end of the water inlet pipe through a sealing bearing. A second rotating shaft is coaxially arranged in the water inlet pipe, and a rotating paddle is sleeved on the second rotating shaft. An iron ring gasket is fixedly arranged on the bottom surface of the middle pipe. A circular through groove is arranged on the bottom surface of the cleaning chamber. An inner magnet plate is rotatably connected in the circular through groove through a sealing bearing. The inner water inlet pipe penetrates through the inner magnet plate and is rotatably connected with the inner magnet plate through a sealing bearing. An outer pipe is fixedly connected with the bottom surface of the inner magnet plate. The inner water inlet pipe is coaxial with the outer pipe and penetrates out of the outer pipe. The outer pipe is driven to rotate by the rotating device and rotates in the opposite direction of the inner water inlet pipe. A rotating shaft is vertically connected upward on the top surface of the cleaning pipe. The rotating shaft is sleeved with a rotating support plate through a bearing.

4. The cement production line gas recycling system with dechlorination function according to claim 3, characterized in that: The rotating device comprises a third rotating shaft coaxially arranged in the air outlet manifold. A second fan blade is sleeved on the third rotating shaft. A first driving bevel gear is further sleeved on the second rotating shaft. The air outlet manifold is transversely provided with a horizontal shaft. The horizontal shaft penetrates out of the air outlet manifold at both ends and is rotatably connected at the penetrating positions through a sealing bearing. The horizontal shaft is sleeved with a first driven bevel gear meshing with the first driving bevel gear. A second driving bevel gear is sleeved on the outer end of the horizontal shaft. A horizontal plate is further arranged on the side surface of the cleaning tank. A vertical shaft is rotatably connected on the horizontal plate through a bearing. A driving gear and a second driven bevel gear meshing with the second driving bevel gear are sleeved on the vertical shaft. A driven gear is sleeved on the outer pipe. The driving gear and the driven gear are driven by a chain.

5. The cement production line gas recycling system with dechlorination function according to claim 1, characterized in that: The connecting pipe comprises branch connecting pipes and a total connecting pipe. The branch connecting pipes are communicated with corresponding cleaning tanks. The branch connecting pipes are all communicated on the total connecting pipe, and the total connecting pipe is downwardly inclined toward the liquid storage chamber.

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