Drying reactor for treating high-concentration salt-containing wastewater

Abstract

The invention relates to the technical field of wastewater treatment equipment, and particularly discloses a drying reactor for treating high-concentration salt-containing wastewater, the drying reactor comprises a fixing frame, a drying cylinder and a drying unit, the drying unit is arranged in the drying cylinder, and a sealing top cover is arranged at the top of the drying cylinder in a sealing manner; a discharging hopper is arranged at the bottom of the drying barrel in a sealed mode, and discharging frames are fixedly arranged on the two sides of the bottom of the discharging hopper. The drying unit comprises the first drying disc and the second drying disc, the first drying disc and the second drying disc are matched with the fixing columns, the first drying disc and the second drying disc are arranged in the drying barrel in an up-down staggered mode, and the first drying disc and the second drying disc are uniquely designed to be provided with the upper end faces in a high-low staggered mode, so that high-concentration salt-containing wastewater can be fully dispersed and flow in the flowing process; the high-concentration salt-containing waste water and hot air flowing upwards from the lower portion of the drying barrel are subjected to efficient hedging, the water evaporation efficiency is greatly improved through the hedging flow, and water in the high-concentration salt-containing waste water is rapidly evaporated.

Description

Technical Field

[0001] The invention relates to the technical field of wastewater treatment equipment, in particular to a dry reactor for treating high-concentration salt-containing wastewater. Background Art

[0002] In the current field of high-concentration salt-containing wastewater treatment, drying reactors are key equipment for achieving wastewater reduction and salt separation. Common drying reactors have a relatively simple structure, usually consisting of a single fixed cylinder with some conventional heating elements and material carrying devices installed inside. When treating high-concentration salt-containing wastewater, the wastewater is generally introduced directly into the drying cylinder, and the wastewater is dried by the hot air generated by the heating element. The contact between hot air and wastewater is relatively simple, usually hot air is introduced from the bottom, and wastewater flows from top to bottom, and the two complete heat exchange in a relatively simple path.

[0003] The conventional flow mode makes it impossible to fully disperse the wastewater during the drying process, resulting in incomplete drying of some wastewater. At the same time, the thermal energy utilization efficiency of hot air is low, a large amount of heat is wasted, and the processing cost is increased. In addition, during the drying process, the dried salt crystals are easily adsorbed on the surface of the material carrying device inside the equipment, such as the drying plate. As time accumulates, these salt crystals will not only affect the normal operation of the equipment, but also reduce the subsequent drying effect of the wastewater, requiring frequent manual cleaning, which increases the difficulty of operation and labor intensity. Summary of the invention

[0004] In view of the above situation, in order to overcome the defects of the prior art, the present invention provides a dry reactor for treating high-concentration saline wastewater, in order to solve the above-mentioned technical defects.

[0005] To achieve the above objectives, the present invention is implemented through the following technical solutions: A drying reactor for treating high-concentration saline wastewater, comprising: A fixing frame, wherein two fixing frames are symmetrically arranged on the left and right, and a lifting electric cylinder is fixedly arranged on opposite sides of the two fixing frames; A drying cylinder, the drying cylinder is arranged between two fixed frames, and the drying cylinder is composed of two detachable cylinders, the upper and lower parts of the drying cylinder surface are fixedly provided with connecting frames, and the two sides of the connecting frame located at the bottom are respectively fixedly connected to the opposite sides of the two fixed frames, and the two sides of the bottom of the connecting frame located at the top are respectively fixedly connected to the top ends of the driving shafts of the two lifting electric cylinders; A drying unit is provided inside the drying cylinder, and a closed top cover is sealed on the top of the drying cylinder, a discharge funnel is sealed on the bottom of the drying cylinder, and discharge racks are fixedly provided on both sides of the bottom of the discharge funnel, a feed pipe is also fixedly provided inside the closed top cover, and the top end of the feed pipe extends to above the closed top cover, and the bottom of the feed pipe extends to directly above the drying unit.

[0006] Furthermore, the drying unit includes a first drying plate and a second drying plate, a fixing column is fixedly arranged inside the drying cylinder, and the bottom end of the fixing column is fixedly connected to the bottom of the inner wall of the discharge funnel, and the fixing column is composed of two detachable metal columns, and the upper and lower parts of the fixing columns are movably connected.

[0007] Furthermore, a plurality of first drying plates are fixedly arranged above and below the surface of the fixed column, a plurality of second drying plates are fixedly arranged above and below the inside of the drying cylinder, and a plurality of material passing grooves are arranged in the middle areas inside the plurality of second drying plates, and the plurality of first drying plates and the plurality of second drying plates are arranged alternately up and down inside the drying cylinder, and the central axes of the plurality of first drying plates and the plurality of second drying plates coincide with the central axis of the fixed column.

[0008] Furthermore, the upper end surfaces of the plurality of first drying plates are in a shape of being high in the middle and low around the edges, and the upper end surfaces of the plurality of second drying plates are in a shape of being low in the middle and high around the edges.

[0009] Furthermore, the upper end surfaces of the first drying plate and the second drying plate are respectively rotatably provided with a first scraper frame and a second scraper frame, and the interiors of the plurality of first scraper frames and the second scraper frames are rotatably connected to the surface of a fixed column, a driving shaft is rotatably provided inside the fixed column, and the driving shaft also adopts an upper and lower separable structure, and the upper and lower parts of the driving shaft are movably connected, a plurality of driving gears are fixedly provided on the surface of the driving shaft, and a plurality of driving gears are also meshed and transmitted with transmission gears on one side, a plurality of transmission gears have one side extending to the outside of the fixed column, and the tooth surfaces of the plurality of transmission gears are respectively meshed and transmitted with the inner surfaces of the plurality of first scraper frames and the second scraper frames, a servo motor is fixedly provided at the bottom of the discharging funnel, and one end of the output shaft of the servo motor is fixedly connected to the bottom end of the driving shaft through a coupling.

[0010] Furthermore, a first air inlet pipe and a first air outlet pipe are fixedly provided on the front and rear sides of the upper and lower connecting frames, and two first air inlet pipes and first air outlet pipes are symmetrically provided up and down, one side of the two first air inlet pipes and the two first air outlet pipes are fixedly connected to the surfaces of the upper and lower cylinders, respectively, and the upper and lower first air inlet pipes and the two first air outlet pipes are connected through a connecting pipe, an air inlet is also provided on one side of the first air inlet pipe located at the bottom, and a circulating air supply pipe is also provided on one side of the first air outlet pipe located at the top, one end of the circulating air supply pipe is connected to the interior of a feeding pipe, a spiral guide frame is fixedly provided on the interior of the feeding pipe, and an air flow channel is provided in the outer interlayer of the spiral guide frame inside the feeding pipe.

[0011] Furthermore, hot air flow channels are provided inside the first and second drying trays, and the interior of the first air inlet pipe is connected to the inlets of the hot air flow channels inside the second drying trays through a conduit, and the interior of the first air outlet pipe is connected to the outlets of the hot air flow channels inside the second drying trays through a conduit.

[0012] Furthermore, a second air inlet pipe and a second air outlet pipe are fixedly provided on both sides of the interior of the fixed column, and the second air inlet pipe and the second air outlet pipe adopt spring air guide pipes, the interiors of the second air inlet pipe and the second air outlet pipe are connected with a plurality of second air guide pipes, and one ends of the plurality of second air guide pipes connected with the interior of the second air inlet pipe are respectively connected with the inlet of the hot air flow channel inside the plurality of first drying trays, and one ends of the plurality of second air guide pipes connected with the interior of the second air outlet pipe are respectively connected with the outlet of the hot air flow channel inside the plurality of first drying trays.

[0013] Furthermore, an air guide block is fixedly provided above the interior of the fixed column, and an air blowing head is also fixedly provided at the top of the fixed column, the top of the second air outlet pipe is connected to the interior of the air guide block, a plurality of air blowing ports are provided on the top of the air blowing head, and a one-way valve is provided inside each of the plurality of air blowing ports, a hot air inlet connector is fixedly provided at the bottom of the discharging funnel, and the interior of the hot air inlet connector is respectively connected to the second air inlet pipe and the lower part of the interior of the drying cylinder.

[0014] Furthermore, an exhaust rack is fixedly provided at the bottom of the closed top cover, a plurality of air outlets are provided inside the closed top cover, a plurality of filter racks are fixedly provided at the bottom of the exhaust rack, and the bottoms of the plurality of filter racks extend to the interiors of the plurality of air outlets respectively, the upper part of the interior of the feed pipe is connected to the interior of the exhaust rack through a conduit, and an air outlet connection port is provided on one side of the top of the exhaust rack.

[0015] The beneficial effects achieved by the present invention using the above structure are as follows: 1. The drying reactor for treating high-concentration saline wastewater proposed in the present invention is composed of two left-right symmetrical fixing frames provided with lifting electric cylinders, and a drying cylinder located therebetween, which is composed of an upper and lower detachable cylinder and connected to the fixing frames and the lifting electric cylinder through a connecting frame. The top of the drying cylinder is sealed with a closed top cover, a feeding pipe is provided for feeding high-concentration saline wastewater, the bottom is sealed with a discharge funnel, and a drying unit is arranged inside the drying cylinder. In this structural design, the fixing frame provides stable support, the lifting electric cylinder can separate the drying cylinder from top to bottom for maintenance, the connection method of the drying cylinder ensures sealing and easy disassembly and assembly, the closed top cover and the discharge funnel respectively ensure the drying environment and smooth discharge, the feeding pipe ensures that the wastewater enters the drying unit evenly, and the various components work together to improve the drying treatment efficiency of high-concentration saline wastewater and the maintainability of the equipment.

[0016] 2. The drying unit proposed in the present invention comprises a first drying plate and a second drying plate, which are arranged alternately up and down in the drying cylinder through cooperation with the fixed column. The unique upper end surface design of the first drying plate and the second drying plate with different heights enables the high-concentration saline wastewater to be fully dispersed and flowed during the flow, and achieves efficient hedging with the hot air flowing upward from the bottom of the drying cylinder. This hedging flow greatly improves the water evaporation efficiency, allows the water in the high-concentration saline wastewater to evaporate quickly, the water vapor rises with the hot air, and the dried salt crystals fall smoothly into the discharge funnel. At the same time, the fixed column adopts a detachable metal column, which is convenient for the inspection and maintenance of the internal structure of the drying unit, and overall improves the drying treatment effect of the drying reactor on the high-concentration saline wastewater and the maintainability of the equipment.

[0017] 3. In the present invention, the first scraper frame and the second scraper frame are rotatably arranged on the upper end surfaces of the first drying plate and the second drying plate respectively, and the transmission cooperation among the servo motor, the driving shaft, the driving gear and the transmission gear is utilized to realize the synchronous rotation of the first scraper frame and the second scraper frame, so that the salt crystals adsorbed on the upper end surfaces of the first drying plate and the second drying plate can be effectively scraped off to ensure the drying reaction treatment effect; at the same time, the slow flow grooves arranged on the upper end surfaces of the first drying plate and the second drying plate can slow down the flow rate of the high-concentration salt-containing wastewater, prolong its contact time with the hot air, and improve the drying reaction treatment effect; and the rounded corners arranged on the outer peripheral surface of the upper end surface of the first drying plate and the inner annular surface of the upper end surface of the second drying plate can effectively avoid the influence of salt crystal adsorption on the flow of the high-concentration salt-containing wastewater, and overall improve the efficiency and quality of the treatment of the high-concentration salt-containing wastewater from the aspects of preventing the adsorption of salt crystals, improving the drying effect and ensuring the flow of wastewater. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings: Figure 1 This is a schematic diagram of a dry reactor structure for treating high-concentration saline wastewater according to an embodiment of the present invention; Figure 2 It is a schematic diagram of the internal structure of the drying cylinder according to an embodiment of the present invention; Figure 3 A schematic diagram of a closed top cover and an exhaust frame structure according to an embodiment of the present invention; Figure 4 Schematic diagram of the first air inlet pipe and the first air outlet pipe structure according to an embodiment of the present invention; Figure 5 A schematic diagram of the structure of the first drying plate and the second drying plate according to an embodiment of the present invention; Figure 6 A schematic diagram of a driving gear and a transmission gear structure according to an embodiment of the present invention; Figure 7 Schematic diagram of the second air inlet pipe and the second air outlet pipe structure according to an embodiment of the present invention; Figure 8 It is a schematic diagram of the discharge hopper and discharge rack structure of an embodiment of the present invention.

[0019] In the figure, 1, fixed frame; 2, connecting frame; 3, lifting electric cylinder; 4, drying cylinder; 5, closing top cover; 6, discharge funnel; 7, feeding pipe; 8, spiral guide frame; 9, first air guide pipe; 10, air outlet; 11, filter frame; 12, exhaust frame; 13, first air inlet pipe; 14, first air outlet pipe; 15, connecting pipe; 16, air inlet; 17, first drying plate; 18, second drying plate; 19, fixed column; 20, servo motor; 21, driving shaft; 22, first scraper frame; 23, second scraper frame; 24, driving gear; 25, transmission gear; 26, second air inlet pipe; 27, second air outlet pipe; 28, second air guide pipe; 29, hot air inlet connector; 30, discharge frame; 31, air guide block; 32, air blowing head; 33, circulating air supply pipe. DETAILED DESCRIPTION

[0020] 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.

[0021] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0022] Embodiment 1: See also Figures 1 to 8 As shown, a dry reactor for treating high-concentration saline wastewater comprises: A fixing frame 1, wherein two fixing frames 1 are symmetrically arranged on the left and right, and a lifting electric cylinder 3 is fixedly arranged on opposite sides of the two fixing frames 1; The drying cylinder 4 is arranged between the two fixed frames 1, and the drying cylinder 4 is composed of two detachable cylinders, and the upper and lower parts of the surface of the drying cylinder 4 are fixedly provided with connecting frames 2, and the two sides of the connecting frame 2 located at the bottom are respectively fixedly connected to the opposite sides of the two fixed frames 1, and the two sides of the bottom of the connecting frame 2 located at the top are respectively fixedly connected to the top ends of the driving shafts of the two lifting electric cylinders 3; the upper part of the drying cylinder 4 is lifted upward by controlling the driving shafts of the two lifting electric cylinders 3, thereby realizing the separation of the upper and lower parts of the drying cylinder 4, facilitating the inspection and maintenance of the internal structure of the drying cylinder 4, and the connection and assembly are carried out at the connection between the upper and lower cylinders by means of annular blocks, annular grooves and annular sealing rings.

[0023] A drying unit is provided inside the drying cylinder 4, and a closed top cover 5 is sealed on the top of the drying cylinder 4, a discharge hopper 6 is sealed on the bottom of the drying cylinder 4, and discharge racks 30 are fixedly provided on both sides of the bottom of the discharge hopper 6, a feed pipe 7 is also fixedly provided inside the closed top cover 5, and the top end of the feed pipe 7 extends to above the closed top cover 5, and the bottom of the feed pipe 7 extends to just above the drying unit; when treating high-concentration saline wastewater, the high-concentration saline wastewater is fed into the interior of the drying cylinder 4 through the feed pipe 7, and the high-concentration saline wastewater flows downward inside the drying unit, and at this time, hot air is introduced into the lower part of the interior of the drying cylinder 4, so that the high-concentration saline wastewater and the hot air flow in a countercurrent manner, thereby improving the drying treatment efficiency of the high-concentration saline wastewater.

[0024] In a specific embodiment, the drying reactor for treating high-concentration saline wastewater proposed in the present invention is composed of two left-right symmetrical fixing frames 1 provided with a lifting electric cylinder 3, and a drying cylinder 4 located therebetween, which is composed of an upper and lower detachable cylinder and connected to the fixing frame 1 and the lifting electric cylinder 3 through a connecting frame 2. The top of the drying cylinder 4 is sealed with a closed top cover 5, a feeding pipe 7 is provided for feeding high-concentration saline wastewater, and a discharge funnel 6 is sealed at the bottom. A drying unit is arranged inside the drying cylinder 4. In this structural design, the fixing frame 1 provides stable support, the lifting electric cylinder 3 can separate the drying cylinder 4 up and down for maintenance, the connection method of the drying cylinder 4 ensures sealing and easy disassembly and assembly, the closed top cover 5 and the discharge funnel 6 respectively ensure the drying environment and smooth discharge, the feeding pipe 7 ensures that the wastewater enters the drying unit evenly, and the various components work together to improve the drying treatment efficiency of high-concentration saline wastewater and the maintainability of the equipment.

[0025] Embodiment 2: Specifically, in order to more clearly explain the drying reaction operation process of the drying unit for high-concentration salt-containing wastewater in the treatment process, the structural composition and working mode of the drying unit will be described in detail below. The drying unit includes a first drying plate 17 and a second drying plate 18. A fixed column 19 is fixedly arranged inside the drying cylinder 4, and the bottom end of the fixed column 19 is fixedly connected to the bottom of the inner wall of the discharge funnel 6. The fixed column 19 is composed of two detachable metal columns, and the upper and lower parts of the fixed columns 19 are movably connected; A plurality of first drying plates 17 are fixedly arranged above and below the surface of the fixed column 19, a plurality of second drying plates 18 are fixedly arranged above and below the inside of the drying cylinder 4, and a plurality of material passing grooves are arranged in the middle area inside the plurality of second drying plates 18, and the plurality of first drying plates 17 and the plurality of second drying plates 18 are arranged in an up-and-down staggered manner inside the drying cylinder 4, and the central axes of the plurality of first drying plates 17 and the plurality of second drying plates 18 coincide with the central axis of the fixed column 19; It should be noted that the upper end surfaces of the plurality of first drying trays 17 are in a shape of being high in the middle and low around the periphery, and the upper end surfaces of the plurality of second drying trays 18 are in a shape of being low in the middle and high around the periphery. After the high-concentration saline wastewater is fed into the interior of the drying cylinder 4 through the feeding pipe 7, the high-concentration saline wastewater first falls on the upper end surface of the first drying tray 17, and the high-concentration saline wastewater flows around along the upper end surface of the top first drying tray 17, and flows to the upper end surface of the top second drying tray 18 through the surrounding of the upper end surface of the top first drying tray 17, and then on the upper end surface of the second drying tray 18, the high-concentration saline wastewater flows from the surrounding to the middle area, and passes through the first drying tray 17. The material passing groove arranged in the middle area of ​​the two drying plates 18 flows to the upper end surface of the first drying plate 17 below, so that the high-concentration saline wastewater flows through the upper end surfaces of the first drying plates 17 and the second drying plates 18, and at the same time, the hot air flows upward from the bottom inside the drying cylinder 4, and the hot air and the high-concentration saline wastewater flow in a counter-flow manner, thereby evaporating the water in the high-concentration saline wastewater, and the evaporated water vapor continues to flow upward with the hot air, and the dried salt crystals follow the first drying plate 17 and the second drying plate 18 and finally fall into the inside of the discharge funnel 6, completing the drying reaction treatment of the high-concentration saline wastewater.

[0026] In a specific embodiment, the drying unit proposed in the present invention includes a first drying plate 17 and a second drying plate 18, which are arranged alternately up and down in the drying cylinder 4 through cooperation with a fixed column 19. The unique upper end surface design of the first drying plate 17 and the second drying plate 18 with staggered heights enables the high-concentration saline wastewater to be fully dispersed and flowed during the flow, and achieves efficient offset with the hot air flowing upward from the bottom of the drying cylinder 4. This offset flow greatly improves the water evaporation efficiency, allowing the water in the high-concentration saline wastewater to evaporate quickly, the water vapor rises with the hot air, and the dried salt crystals fall smoothly into the discharge funnel 6. At the same time, the fixed column 19 adopts a detachable metal column, which is convenient for the inspection and maintenance of the internal structure of the drying unit, and overall improves the drying treatment effect of the drying reactor on high-concentration saline wastewater and the maintainability of the equipment.

[0027] Embodiment 3: Specifically, in order to prevent the high-concentration salt-containing wastewater from being adsorbed on the upper surfaces of the first drying plate 17 and the second drying plate 18 after the drying reaction treatment, the upper surfaces of the first drying plate 17 and the second drying plate 18 are respectively rotatably provided with a first scraper frame 22 and a second scraper frame 23, and the interiors of the plurality of first scraper frames 22 and the second scraper frames 23 are rotatably connected to the surface of the fixed column 19, and the interior of the fixed column 19 is rotatably provided with a driving shaft 21, and the driving shaft 21 also adopts a structure that can be separated up and down, so that the driving shaft 21 can be driven. The upper and lower parts of the moving shaft 21 are movably connected, and a plurality of driving gears 24 are fixedly arranged on the surface of the driving shaft 21, and a transmission gear 25 is also arranged on one side of the plurality of driving gears 24 for meshing transmission, and one side of the plurality of transmission gears 25 extends to the outside of the fixed column 19, and the tooth surfaces of the plurality of transmission gears 25 are respectively meshed and transmitted with the inner surfaces of the plurality of first scraper racks 22 and the second scraper racks 23, and a servo motor 20 is fixedly arranged at the bottom of the discharge funnel 6, and one end of the output shaft of the servo motor 20 is fixedly connected to the bottom end of the driving shaft 21 through a coupling; Furthermore, the upper end surfaces of the plurality of first drying trays 17 and the second drying trays 18 are provided with slow-flow grooves, and the bottoms of the plurality of first scraper racks 22 and the second scraper racks 23 are in sliding contact with the inside of the plurality of slow-flow grooves, the outer peripheral surfaces of the upper end surfaces of the plurality of first drying trays 17 and the inner annular surfaces of the upper end surfaces of the plurality of second drying trays 18 are provided with chamfers, and the bottoms of the plurality of first scraper racks 22 and the second scraper racks 23 are in sliding contact with the surfaces of the chamfers; by providing the slow-flow grooves, the flow rate of the high-concentration saline wastewater on the surfaces of the first drying trays 17 and the second drying trays 18 can be slowed down, thereby increasing the contact time between the high-concentration saline wastewater and the hot air, and improving the drying reaction treatment effect on the high-concentration saline wastewater; at the same time, the high-concentration saline wastewater flow boundary on the upper end surfaces of the first drying trays 17 and the second drying trays 18 is provided with chamfers, which can effectively prevent the salt crystals from being adsorbed on the upper end surfaces of the first drying trays 17 and the second drying trays 18 and affecting the flow of the high-concentration saline wastewater.

[0028] It should be noted that when the drying reaction treatment of high-concentration salt-containing wastewater is carried out, the output shaft of the servo motor 20 drives the drive shaft 21 to rotate inside the fixed column 19, and the meshing transmission between the drive gear 24 and the transmission gear 25 allows the first scraper racks 22 and the second scraper racks 23 rotatably arranged on the surface of the fixed column 19 to rotate synchronously. The first scraper racks 22 are used to continuously scrape the upper end surfaces of the first drying trays 17, and the second scraper racks 23 are used to continuously scrape the upper end surfaces of the second drying trays 18, which can effectively scrape off the salt crystals adsorbed on the upper end surfaces of the first drying trays 17 and the second drying trays 18, thereby ensuring the drying reaction treatment effect of the first drying trays 17 and the second drying trays 18 on the high-concentration salt-containing wastewater.

[0029] In a specific embodiment, the present invention realizes synchronous rotation of the first scraper frame 22 and the second scraper frame 23 by rotatably setting the upper end surfaces of the first drying plate 17 and the second drying plate 18 respectively, and utilizes the transmission cooperation between the servo motor 20, the drive shaft 21, the drive gear 24 and the transmission gear 25, so as to effectively scrape off the salt crystals adsorbed on the upper end surfaces of the first drying plate 17 and the second drying plate 18, thereby ensuring the drying reaction treatment effect; at the same time, the slow flow grooves arranged on the upper end surfaces of the first drying plate 17 and the second drying plate 18 can slow down the flow rate of the high-concentration salt-containing wastewater, prolong its contact time with the hot air, and improve the drying reaction treatment effect; and the rounded corners arranged on the outer peripheral surface of the upper end surface of the first drying plate 17 and the inner annular surface of the upper end surface of the second drying plate 18 can effectively avoid the influence of salt crystal adsorption on the flow of the high-concentration salt-containing wastewater, and overall improve the efficiency and quality of the high-concentration salt-containing wastewater treatment from the aspects of preventing salt crystal adsorption, improving the drying effect and ensuring the flow of wastewater.

[0030] Embodiment 4: Specifically, in order to further improve the drying reaction treatment efficiency of high-concentration salt-containing wastewater on the upper end surfaces of the first drying plate 17 and the second drying plate 18, the front and rear sides of the upper and lower connecting frames 2 are respectively fixedly provided with a first air inlet pipe 13 and a first air outlet pipe 14, and two first air inlet pipes 13 and first air outlet pipes 14 are symmetrically provided up and down, and one side of the two first air inlet pipes 13 and the two first air outlet pipes 14 are respectively fixedly connected to the surfaces of the upper and lower cylinders, and the upper and lower first air inlet pipes 13 and the two first air outlet pipes 14 are connected through a connecting pipe 15, and an air inlet 16 is also provided on one side of the first air inlet pipe 13 located at the bottom, and a circulating air supply pipe 33 is also provided on one side of the first air outlet pipe 14 located at the top, and one end of the circulating air supply pipe 33 is connected to the interior of the feeding pipe 7, and a spiral guide frame 8 is fixedly provided inside the feeding pipe 7, and an air flow channel is provided in the outer interlayer of the spiral guide frame 8 inside the feeding pipe 7; Furthermore, a plurality of first drying trays 17 and second drying trays 18 are provided with hot air flow passages inside, and the interior of the first air inlet pipe 13 is connected to the inlet of the hot air flow passages inside the plurality of second drying trays 18 through a conduit, and the interior of the first air outlet pipe 14 is connected to the outlet of the hot air flow passages inside the plurality of second drying trays 18 through a conduit; Further, a second air inlet pipe 26 and a second air outlet pipe 27 are fixedly arranged on both sides of the interior of the fixed column 19, and the second air inlet pipe 26 and the second air outlet pipe 27 adopt spring air guide pipes, and the interiors of the second air inlet pipe 26 and the second air outlet pipe 27 are both connected with a plurality of second air guide pipes 28, and one end of the plurality of second air guide pipes 28 connected with the interior of the second air inlet pipe 26 is respectively connected with the inlet of the hot air flow channel inside the plurality of first drying trays 17, and one end of the plurality of second air guide pipes 28 connected with the interior of the second air outlet pipe 27 is respectively connected with the outlet of the hot air flow channel inside the plurality of first drying trays 17; An air guide block 31 is fixedly installed above the interior of the fixed column 19, and an air blowing head 32 is also fixedly installed at the top of the fixed column 19, the top of the second air outlet pipe 27 is connected to the interior of the air guide block 31, and a plurality of air blowing ports are provided on the top of the air blowing head 32, and a one-way valve is provided inside each of the plurality of air blowing ports, and a hot air inlet connector 29 is fixedly installed at the bottom of the discharging funnel 6, and the interior of the hot air inlet connector 29 is respectively connected to the second air inlet pipe 26 and the lower part of the interior of the drying cylinder 4.

[0031] Furthermore, an exhaust rack 12 is fixedly provided at the bottom of the closed top cover 5, a plurality of air outlets 10 are provided inside the closed top cover 5, a plurality of filter racks 11 are fixedly provided at the bottom of the exhaust rack 12, and the bottoms of the plurality of filter racks 11 extend to the interiors of the plurality of air outlets 10 respectively, the upper part of the interior of the feed pipe 7 is connected to the interior of the exhaust rack 12 through a conduit, and an air outlet connection port is provided on one side of the top of the exhaust rack 12.

[0032] It should be noted that when the drying reaction treatment of high-concentration salt-containing wastewater is carried out, hot air is transported to the inside of the second drying tray 18 and the first drying tray 17 respectively through the first air inlet pipe 13 and the second air inlet pipe 26, and the hot air is transported to the lower part of the drying cylinder 4 by using the hot air intake connector 29. The hot air and the high-concentration salt-containing wastewater are used for counter-contact inside the drying cylinder 4. At the same time, the hot air flow channels inside the first drying tray 17 and the second drying tray 18 are heated by the hot air, thereby further improving the drying reaction treatment of the high-concentration salt-containing wastewater by the first drying tray 17 and the second drying tray 18. In addition, the hot air flowing out of the first drying tray 17 is blown directly to the bottom of the feed pipe 7, and the hot air flowing out of the second drying tray 18 is sent into the feed pipe 7 to preheat the high-concentration salt-containing wastewater, thereby maximizing the utilization of the thermal energy in the hot air and improving the drying reaction treatment efficiency of the high-concentration salt-containing wastewater.

[0033] In a specific embodiment, the present invention realizes effective delivery of hot air to the second drying tray 18 by connecting the first air inlet pipe 13, the first air outlet pipe 14 and the connecting pipe 15 and other components arranged on the upper and lower connecting frames 2 with the hot air flow channels inside the first drying tray 17 and the second drying tray 18; the second air inlet pipe 26, the second air outlet pipe 27 and the related air guide pipes in the fixed column 19 ensure the supply of hot air to the first drying tray 17, and at the same time, the hot air inlet connector 29 delivers hot air to the bottom of the drying cylinder 4, so that the hot air and the wastewater are fully counteracted and contacted. On this basis, the hot air flow channels inside the first drying tray 17 and the second drying tray 18 heat the trays, further enhancing the drying effect. In addition, the hot air flowing out of the first drying plate 17 blows air to the bottom of the feeding pipe 7, and the hot air flowing out of the second drying plate 18 preheats the wastewater in the pipe, which maximizes the use of the thermal energy of the hot air. The exhaust frame 12 and the filter frame 11 at the closed top cover 5 are used to ensure that the exhaust gas is filtered. The overall solution starts from multiple aspects such as hot air transportation, drying reaction enhancement, thermal energy utilization and exhaust gas treatment, and comprehensively improves the drying reaction treatment efficiency and quality of high-concentration salt-containing wastewater.

[0034] Embodiment 5: Specifically, this embodiment also discloses in detail a working process of a drying reactor for treating high-concentration salt-containing wastewater, including the following steps: Step 1: Feed high-concentration salt-containing wastewater into the drying cylinder 4 through the feeding pipe 7, and the wastewater falls on the upper end surface of the first drying plate 17; Step 2: The hot air intake connector 29 delivers hot air to the lower part of the drying cylinder 4 to counteract the high-concentration salt-containing wastewater flowing downward. At the same time, the first air intake pipe 13 delivers hot air to the hot air flow channel inside the second drying plate 18, and the second air intake pipe 26 delivers hot air to the hot air flow channel inside the first drying plate 17 through the second air guide pipe 28, so as to heat the first drying plate 17 and the second drying plate 18, thereby further improving the drying reaction efficiency. The high-concentration salt-containing wastewater flows between the first drying tray 17 and the second drying tray 18, flows from the middle of the first drying tray 17 to the surroundings, then flows to the second drying tray 18, flows from the surroundings of the second drying tray 18 to the middle material passing slot, and falls into the first drying tray 17 below, and the cycle continues. During the flow process, the wastewater is fully in contact with the hot air, and the water evaporates; The evaporated water vapor rises with the hot air, and the dried salt crystals fall into the discharge hopper 6 along the first drying plate 17 and the second drying plate 18, and are discharged through the discharge rack 30; Step 3, the output shaft of the servo motor 20 drives the driving shaft 21 to rotate, and the driving gear 24 is meshed with the transmission gear 25 to make the first scraper frame 22 and the second scraper frame 23 rotate synchronously to scrape off the salt crystals adsorbed on the upper end surfaces of the first drying plate 17 and the second drying plate 18 to ensure the drying effect; Part of the hot air flowing out of the first drying plate 17 and the second drying plate 18 is blown toward the bottom of the feed pipe 7, and part of it is fed into the feed pipe 7 to preheat the high-concentration salt-containing wastewater, making full use of the heat energy of the hot air; Step 4: If the internal structure of the equipment needs to be inspected and maintained, start the lifting electric cylinder 3, and the driving shaft controls the upper part of the drying cylinder 4 to lift upward, separating the upper and lower parts of the drying cylinder 4. Since the fixed column 19 adopts a detachable metal column, it is also convenient to inspect the internal structure of the drying unit.

[0035] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0037] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It is obvious to those skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is defined by the attached claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any figure mark in the claims should not be regarded as limiting the claims involved.

[0038] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A dry reactor for treating high-concentration saline wastewater, characterized in that: include: A fixing frame (1), wherein two fixing frames (1) are symmetrically arranged on the left and right, and a lifting electric cylinder (3) is fixedly arranged on opposite sides of the two fixing frames (1); A drying cylinder (4), the drying cylinder (4) being arranged between the two fixing frames (1), and the drying cylinder (4) being composed of two detachable cylinders, the upper and lower surfaces of the drying cylinder (4) being fixedly provided with connecting frames (2), and the two sides of the connecting frame (2) located at the lower side are respectively fixedly connected to the opposite sides of the two fixing frames (1), and the two sides of the bottom of the connecting frame (2) located at the upper side are respectively fixedly connected to the top ends of the driving shafts of the two lifting electric cylinders (3); A drying unit is provided inside the drying cylinder (4), and a closed top cover (5) is sealed on the top of the drying cylinder (4), a discharge hopper (6) is sealed on the bottom of the drying cylinder (4), and discharge racks (30) are fixedly provided on both sides of the bottom of the discharge hopper (6), a feed pipe (7) is also fixedly provided inside the closed top cover (5), and the top end of the feed pipe (7) extends to above the closed top cover (5), and the bottom of the feed pipe (7) extends to directly above the drying unit.

2. A dry reactor for treating high-concentration saline wastewater according to claim 1, characterized in that: The drying unit comprises a first drying plate (17) and a second drying plate (18); a fixing column (19) is fixedly arranged inside the drying cylinder (4); the bottom end of the fixing column (19) is fixedly connected to the bottom of the inner wall of the discharge hopper (6); the fixing column (19) is composed of two detachable metal columns, the upper and lower parts of which are movably connected.

3. A dry reactor for treating high-concentration saline wastewater according to claim 2, characterized in that: A plurality of first drying trays (17) are fixedly arranged above and below the surface of the fixed column (19), a plurality of second drying trays (18) are fixedly arranged above and below the interior of the drying cylinder (4), and a material passing slot is arranged in the middle area inside the plurality of second drying trays (18), and the plurality of first drying trays (17) and the plurality of second drying trays (18) are arranged in an up-and-down manner inside the drying cylinder (4), and the central axes of the plurality of first drying trays (17) and the plurality of second drying trays (18) coincide with the central axis of the fixed column (19).

4. A dry reactor for treating high-concentration saline wastewater according to claim 3, characterized in that: The upper end surfaces of the plurality of first drying plates (17) are in a shape of being high in the middle and low around the periphery, and the upper end surfaces of the plurality of second drying plates (18) are in a shape of being low in the middle and high around the periphery.

5. A dry reactor for treating high-concentration saline wastewater according to claim 4, characterized in that: The upper end surfaces of the first drying plate (17) and the second drying plate (18) are rotatably provided with a first scraper frame (22) and a second scraper frame (23), respectively, and the interiors of a plurality of the first scraper frames (22) and the second scraper frames (23) are rotatably connected to the surface of a fixed column (19), and a driving shaft (21) is rotatably provided inside the fixed column (19), and the driving shaft (21) also adopts an upper and lower separable structure, and the upper and lower parts of the driving shaft (21) are movably connected, and the surface of the driving shaft (21) is fixedly provided with a plurality of driving gears. A plurality of drive gears (24) are provided on one side of the plurality of drive gears (24) for meshing transmission, one side of the plurality of drive gears (25) extends to the outside of the fixed column (19), and the tooth surfaces of the plurality of drive gears (25) are respectively meshed with the inner surfaces of the plurality of first scraper racks (22) and the second scraper racks (23) for transmission, a servo motor (20) is fixedly provided at the bottom of the discharge hopper (6), and one end of the output shaft of the servo motor (20) is fixedly connected to the bottom end of the drive shaft (21) through a coupling.

6. A dry reactor for treating high-concentration saline wastewater according to claim 5, characterized in that: A first air inlet pipe (13) and a first air outlet pipe (14) are fixedly arranged on the front and rear sides of the upper and lower connecting frames (2), respectively, and two first air inlet pipes (13) and two first air outlet pipes (14) are symmetrically arranged in the upper and lower parts. One side of the two first air inlet pipes (13) and the two first air outlet pipes (14) are fixedly connected to the surfaces of the upper and lower cylinders, respectively, and the upper and lower first air inlet pipes (13) and the two first air outlet pipes (14) are connected through a connecting pipe (15). An air inlet (16) is also arranged on one side of the first air inlet pipe (13) located at the bottom, and a circulating air supply pipe (33) is also arranged on one side of the first air outlet pipe (14) located at the top. One end of the circulating air supply pipe (33) is connected to the inside of the feeding pipe (7). A spiral guide frame (8) is fixedly arranged inside the feeding pipe (7), and an air flow channel is arranged in the outer interlayer of the spiral guide frame (8) inside the feeding pipe (7).

7. A dry reactor for treating high-concentration saline wastewater according to claim 6, characterized in that: A plurality of the first drying trays (17) and the second drying trays (18) are each provided with a hot air flow passage, and the interior of the first air inlet pipe (13) is connected to the inlet of the hot air flow passages in the plurality of second drying trays (18) through a conduit, and the interior of the first air outlet pipe (14) is connected to the outlet of the hot air flow passages in the plurality of second drying trays (18) through a conduit.

8. A dry reactor for treating high-concentration saline wastewater according to claim 7, characterized in that: A second air inlet pipe (26) and a second air outlet pipe (27) are fixedly arranged on both sides of the interior of the fixed column (19), and the second air inlet pipe (26) and the second air outlet pipe (27) are spring air guide pipes. The interiors of the second air inlet pipe (26) and the second air outlet pipe (27) are both connected to a plurality of second air guide pipes (28), and one end of the plurality of second air guide pipes (28) connected to the interior of the second air inlet pipe (26) is respectively connected to the inlet of the hot air flow channel inside the plurality of first drying trays (17), and one end of the plurality of second air guide pipes (28) connected to the interior of the second air outlet pipe (27) is respectively connected to the outlet of the hot air flow channel inside the plurality of first drying trays (17).

9. A dry reactor for treating high-concentration saline wastewater according to claim 8, characterized in that: An air guide block (31) is fixedly arranged above the interior of the fixed column (19), and an air blowing head (32) is also fixedly arranged at the top of the fixed column (19); the top of the second air outlet pipe (27) is connected to the interior of the air guide block (31); a plurality of air blowing ports are arranged at the top of the air blowing head (32); each of the plurality of air blowing ports has a one-way valve arranged inside; a hot air intake connector (29) is fixedly arranged at the bottom of the discharge funnel (6), and the interior of the hot air intake connector (29) is respectively connected to the second air intake pipe (26) and the lower part of the interior of the drying cylinder (4).

10. A dry reactor for treating high-concentration saline wastewater according to claim 9, characterized in that: An exhaust rack (12) is fixedly arranged at the bottom of the closed top cover (5), a plurality of air outlets (10) are arranged inside the closed top cover (5), a plurality of filter racks (11) are fixedly arranged at the bottom of the exhaust rack (12), and the bottoms of the plurality of filter racks (11) respectively extend to the interior of the plurality of air outlets (10), the upper part of the interior of the feed pipe (7) is connected to the interior of the exhaust rack (12) through a conduit, and an air outlet connection port is arranged on one side of the top of the exhaust rack (12).

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