An adjustable atomization evaporation tower

Abstract

The application discloses an adjustable atomization evaporation tower, the top of the atomization evaporation tower is provided with a hot air distributor, the hot air distributor is provided with a hot air inlet and a hot air outlet, the hot air outlet at least comprises a circumferential hot air outlet located at a circumferential position of the atomization evaporation tower, a plurality of groups of rotatable air deflectors are arranged in the circumferential hot air outlet, and the air deflectors are connected with a driving mechanism for driving the air deflectors to rotate. The application has the advantages that the hot air flow field in the evaporation tower is adjustable, and then the hot air flow field can be dynamically adjusted according to the composition of high-salinity wastewater, and the evaporation desalination effect under complex working conditions is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of wastewater treatment, and particularly relates to an adjustable atomization evaporation tower. BACKGROUND

[0002] With the rapid increase of industrial water consumption, the amount of wastewater discharge also increases rapidly, which brings great challenges to the current wastewater treatment and recycling technology. The spray evaporation technology is a technology of atomizing liquid material and quickly contacting with hot air to realize drying and desalination. The technology has been widely used in the past food, pharmaceutical and other industries, and is now creatively applied to the field of high-salinity wastewater treatment. The principle of the technology is to atomize the material liquid to increase its specific surface area, and then contact with hot air to realize the drying and desalination process through phase change. The spray evaporation process mainly consists of four stages: the material liquid is atomized by a rotary atomizer, the material mist is mixed and flowed with the evaporation medium (usually hot air), the material mist is evaporated in the hot air, and finally the product is separated and recovered.

[0003] In actual operation, the hot air distribution in the spray evaporation tower has a crucial influence on the efficiency and effect of the spray evaporation technology. Therefore, the hot air distributor of the spray evaporation tower needs to be reasonably designed and optimized to ensure that the best hot air distribution state can be achieved in the evaporation tower. However, the existing spray evaporation tower hot air distributors are mostly fixed structures, which can still be pre-designed and optimized according to the material properties for traditional materials (such as milk powder, medicines, etc.) with relatively stable composition and basically unchanged feed concentration, so as to achieve good evaporation effect. However, for high-salinity wastewater treatment, the composition of the wastewater is relatively complex, and the composition ratio and salt concentration between the components will change with the adjustment of the upstream process, so the traditional fixed hot air distributor is difficult to provide good evaporation and desalination effect under complex conditions. SUMMARY

[0004] The technical problem solved by the present application is that in order to overcome the defects of the prior art, the present application provides an adjustable atomization evaporation tower, which has the advantage that the hot air flow field in the evaporation tower is adjustable, thereby facilitating the dynamic adjustment of the hot air flow field according to the composition of the high-salinity wastewater, and improving the evaporation and desalination effect under complex conditions.

[0005] The technical solution adopted by the present application to solve the technical problem is an adjustable atomization evaporation tower, characterized in that a hot air distributor is arranged at the top of the atomization evaporation tower, the hot air distributor has a hot air inlet and a hot air outlet, the hot air outlet includes at least a circumferential hot air outlet located at the circumferential position of the atomization evaporation tower, a plurality of rotatable air deflectors are arranged in the circumferential hot air outlet, and the air deflectors are connected with a driving mechanism for driving the rotation of the air deflectors.

[0006] Further, the air deflector is provided with a rotating shaft, and the air deflector is rotatably arranged in the circular hot air outlet through the rotating shaft.

[0007] Further, the rotating shaft extends to the outside of the hot air distributor and is connected with an adjusting knob, the driving mechanism is connected with the adjusting knob and drives the air deflector to rotate through the adjusting knob.

[0008] Further, the driving mechanism comprises an adjusting ring arranged outside the atomization evaporation tower, the adjusting ring is provided with a plurality of knob rods, the knob rods are in one-to-one correspondence with the adjusting knobs and are connected with the adjusting knobs, and the adjusting ring is connected with a first motor for driving the adjusting ring to rotate outside the atomization evaporation tower.

[0009] Further, the adjusting ring is provided with a rack, the first motor is connected with a bevel gear, and the bevel gear is engaged with the rack.

[0010] Further, the first motor is provided with an encoder.

[0011] Further, the adjusting knob is provided with a sliding groove, one end of the sliding groove is provided with a circular groove, the knob rod passes through the sliding groove, and the knob rod is connected with a stopper.

[0012] Further, the adjusting ring is provided with a positioning piece, and proximity sensors or distance sensors are arranged on both sides of the positioning piece outside the atomization evaporation tower and face the positioning piece.

[0013] Further, the hot air outlet of the hot air distributor further comprises a central hot air outlet located at the center of the hot air distributor, and the central hot air outlet is provided with a central hot air deflector.

[0014] Further, the atomization evaporation tower is provided with a liquid uniform distributor and an atomization disc, the atomization disc is located below the liquid uniform distributor, the atomization disc is connected with a second motor, an inlet pipe is arranged above the liquid uniform distributor for introducing high-salinity wastewater, the liquid uniform distributor comprises a groove structure and an overflow weir located on one side of the groove structure, a comb-shaped tooth is arranged at the lower part of the overflow weir for dividing and guiding the flowing high-salinity wastewater, a plurality of flow dividing plates are arranged on the atomization disc, a plurality of guide vanes are arranged at the circumference of the atomization disc, arc-shaped guide grooves are formed between the guide vanes around the atomization disc, and the high-salinity wastewater in the atomization disc is thrown out of the arc-shaped guide grooves when the atomization disc rotates.

[0015] The bottom of the atomization evaporation tower is provided with a material outlet, the bottom of the atomization evaporation tower is in a reverse conical shape and gradually shrinks to the material outlet, a gas collecting ring is arranged below the atomization disc (200) in the atomization evaporation tower, the gas collecting ring is horizontally arranged, the gas collecting ring is provided with an opening, the opening of the gas collecting ring is arranged at the bottom of the gas collecting ring or the inner side obliquely downward, a metal filter screen is arranged at the opening, and a hot air outlet extending to the outside of the atomization evaporation tower is connected to the gas collecting ring.

[0016] The hot air distributor of the present application has the advantages that the hot air outlet angle of the hot air distributor is adjustable, the hot air outlet angle can be adjusted for different concentrations and types of materials, the distribution of hot air on the air duct, the rotating force and direction can be accurately controlled, the hot air and the mist can be in countercurrent or cocurrent state as needed, and the hot air can uniformly cover the entire drying area, prolong the residence time of the hot air in the evaporation tower, and achieve better evaporation drying effect. The hot air distributor has wide applicability and high adjustability, and can meet the needs of various types of spray evaporation equipment. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the present application;

[0018] Figure 2 is a schematic diagram of the hot air distributor in the present application;

[0019] Figure 3 is Figure 2 is an enlarged view of A in

[0020] Figure 4 is a schematic diagram of the air deflector in the present application;

[0021] Figure 5 is a schematic diagram of the hot air inlet of the hot air distributor in the present application;

[0022] Figure 6 is a schematic diagram of the hot air outlet of the hot air distributor in the present application;

[0023] Figure 7 is a schematic diagram of the liquid uniform distributor and the atomizing disc in the present application.

[0024] In the figure, 1 is an atomizing evaporation tower; 2 is a hot air distributor; 21 is an adjusting ring; 22 is a proximity sensor; 23 is a first motor; 24 is an air deflector; 25 is a mounting hole; 211 is a positioning piece; 212 is a rack; 213 is a lever; 231 is a bevel gear; 241 is a rotating shaft; 242 is an adjusting lever; 100 is a liquid uniform distributor; 101 is a groove structure; 102 is an overflow weir; 103 is a comb-shaped tooth; 200 is an atomizing disc; 201 is a flow dividing plate; 202 is a guide vane; 203 is an arc-shaped guide groove. DETAILED DESCRIPTION

[0025] The specific embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0026] Example: Reference Figures 1-7The adjustable atomization evaporation tower is characterized in that: a hot air distributor 2 is arranged at the top of the atomization evaporation tower 1, the hot air distributor 2 is provided with a hot air inlet and a hot air outlet, the hot air inlet is arranged outside the atomization evaporation tower 1 and is used for connecting hot air, and the hot air outlet is arranged inside the atomization evaporation tower 1 and is used for blowing hot air into the atomization evaporation tower 1.

[0027] The shell of the hot air distributor 2 is designed as a spiral volute, and the inside is a hollow circle; the wind channel inlet is designed as a rectangular port to ensure sufficient air inlet, and the wind channel is designed as a tapered type, so that the conical annular wind speed dynamic pressure is balanced, and the air inlet is uniform.

[0028] The hot air outlet comprises a circumferential hot air outlet arranged at the circumferential position of the atomization evaporation tower 1 and a central hot air outlet arranged at the center of the hot air distributor 2, and the central hot air outlet is provided with a central hot air guide plate.

[0029] A plurality of groups of rotatable air guide plates 24 are arranged in the circumferential hot air outlet, the air guide plates 24 are connected with a driving mechanism for driving the air guide plates 24 to rotate, the air guide plates 24 are provided with rotating shafts 241, corresponding mounting holes 25 are arranged at the circumferential hot air outlet of the hot air distributor 2 and are used for mounting the rotating shafts 241, and the air guide plates 24 are rotatably arranged in the circumferential hot air outlet through the rotating shafts 241.

[0030] The rotating shafts are arranged outside the hot air distributor 2 and are connected with adjusting knobs 242, the driving mechanism is connected with the adjusting knobs 242 and drives the air guide plates 24 to rotate through the adjusting knobs 242, the driving mechanism comprises an adjusting ring 21 arranged outside the atomization evaporation tower 1, a plurality of knobs 213 are arranged on the adjusting ring 21, the knobs 213 are in one-to-one correspondence with the adjusting knobs 242 and are connected with the adjusting knobs 242, and the adjusting ring 21 is connected with a first motor 23 for driving the adjusting ring 21 to rotate outside the atomization evaporation tower 1, the adjusting ring 21 is provided with a rack 212, the first motor 23 is connected with a bevel gear 231, and the bevel gear 231 is engaged with the rack 212.

[0031] The adjusting knobs 242 are provided with grooves, one end of the grooves is provided with a circular groove, the knobs 213 pass through the grooves, the knobs 213 are connected with stops, the stops are spherical and are integrally formed with the knobs 213 or are installed on the knobs 213 through welding or threaded connection, and the diameter of the circular groove is greater than that of the stop.

[0032] In order to detect the position of the first motor 23, an encoder is arranged on the first motor 23, the position of the adjusting ring 21 can be judged through the data of the encoder, and then the angle of the air guide plate 24 can be obtained.

[0033] The adjusting ring 21 is provided with a positioning sheet 211, and a proximity sensor 22 or a distance sensor opposite to the positioning sheet 211 is arranged at positions on the outside of the atomization evaporation tower 1 on both sides of the positioning sheet 211. The position of the adjusting ring 21 can be judged through the data of the proximity sensor 22 or the distance sensor on both sides of the positioning sheet, and then the angle of the air deflector 24 can be obtained. The above-mentioned encoder judges the angle of the air deflector 24 on the motor side, while the proximity sensor 22 or the distance sensor judges on the adjusting ring 21 side. Through the comparison of the data of the two, whether the bevel gear 231 and the rack 212 are well engaged can be judged.

[0034] The atomization evaporation tower 1 is provided with a liquid uniform distributor 100 and an atomization disc 200. The atomization disc 200 is located below the liquid uniform distributor 100, and the atomization disc 200 is connected with a second motor. An inlet pipe is arranged above the liquid uniform distributor 100 for introducing high-salinity wastewater. The liquid uniform distributor 100 comprises a groove structure 101 and an overflow weir 102 located on one side of the groove structure 101. The lower part of the overflow weir 102 is provided with a comb-shaped tooth 103 for dividing and guiding the flowing high-salinity wastewater. The atomization disc 200 is provided with a plurality of flow dividing plates 201, and the circumference of the atomization disc 200 is provided with a plurality of guide vanes 202. The guide vanes 202 around the atomization disc 200 form arc-shaped guide grooves 203 therebetween. The high-salinity wastewater in the atomization disc 200 is thrown out from the arc-shaped guide grooves 203 when the atomization disc 200 rotates.

[0035] The bottom of the atomization evaporation tower 1 is provided with a material outlet. The bottom of the atomization evaporation tower 1 is inverted conical and gradually shrinks to the material outlet. A gas collecting ring is arranged below the atomization disc 200 in the atomization evaporation tower 1. The gas collecting ring is horizontally arranged. An opening is arranged on the gas collecting ring. The opening on the gas collecting ring is arranged at the bottom of the gas collecting ring or the inner side obliquely downward. A metal filter screen is arranged at the opening. The gas collecting ring is connected with a hot air outlet extending to the outside of the atomization evaporation tower 1.

[0036] The hot air outlet angle of the hot air distributor 2 is adjustable. For different concentrations and types of materials, the hot air outlet angle can be adjusted to accurately control the distribution of hot air on the air duct, the rotation strength and direction, so that the hot air and the material mist present countercurrent or cocurrent state as needed. At the same time, it can ensure that the hot air can uniformly cover the entire drying area, prolong the residence time of the hot air in the atomization evaporation tower 1, and achieve better evaporation drying effect. This kind of hot air distributor 2 has wide applicability and high adjustability, and can meet the needs of various types of spray evaporation equipment.

[0037] The first motor is controlled by a controller, in the application, the control scheme of the first motor can be to control the reciprocating rotation of the first motor through program control, and then control the reciprocating swing of the air deflector 24, realize the periodic change of the circumferential hot air outlet, make the hot air and the mist present countercurrent or concurrent state periodically, prolong the residence time of the hot air in the atomization evaporation tower 1, and achieve better evaporation drying effect. In addition, the data of the controller of the first motor can also be updated in real time according to the concentration of the obtained wastewater, so as to realize the purpose of adjusting the direction of the adjusting plate in real time.

[0038] The above only describes the preferred embodiments of the present application, and it should be pointed out that for ordinary skilled persons in the art, without departing from the inventive concept, a number of modifications and improvements can be made, which all belong to the protection scope of the present application.

Claims

1. An adjustable atomizing evaporation tower, characterized in that, The top of the atomization evaporation tower is provided with a hot air distributor (2), which has a hot air inlet and a hot air outlet, the hot air outlet at least includes a circumferential hot air outlet located at a circumferential position of the atomization evaporation tower, a plurality of rotatable air deflectors (24) are arranged in the circumferential hot air outlet, and the air deflectors (24) are connected with a driving mechanism for driving the rotation of the air deflectors (24); The air deflectors (24) are provided with rotating shafts (241), and the air deflectors (24) are rotatably arranged in the circumferential hot air outlet through the rotating shafts (241); The rotating shafts (241) extend out of the outside of the hot air distributor (2) and are connected with adjusting knobs (242), the driving mechanism is connected with the adjusting knobs (242) and drives the rotation of the air deflectors (24) through the adjusting knobs (242); The driving mechanism includes an adjusting ring (21) arranged outside the atomization evaporation tower, a plurality of knobs (213) are arranged on the adjusting ring (21), the knobs (213) correspond to the adjusting knobs (242) one by one and are connected with the adjusting knobs (242), and the adjusting ring (21) is connected with a first motor (23) for driving the rotation of the adjusting ring (21) outside the atomization evaporation tower; The hot air outlet of the hot air distributor (2) further includes a central hot air outlet located at the center of the hot air distributor (2), and the central hot air outlet is provided with a central hot air deflector.

2. The adjustable spray evaporation tower of claim 1, wherein, The adjusting ring (21) is provided with a rack (212), and the first motor (23) is connected with a bevel gear (231), the bevel gear (231) is engaged with the rack (212).

3. The adjustable spray evaporation tower of claim 2, wherein, The first motor (23) is provided with an encoder.

4. The adjustable spray evaporation tower of claim 1, wherein, The adjusting knobs (242) are provided with a sliding groove, one end of the sliding groove is provided with a circular groove, the knobs (213) pass through the sliding groove, and the knobs (213) are connected with stops.

5. The adjustable spray evaporation tower of claim 1, wherein, The adjusting ring (21) is provided with a positioning piece (211), and proximity sensors (22) or distance sensors are arranged on the outside of the atomization evaporation tower and located at positions opposite to the two sides of the positioning piece (211).

6. The adjustable spray evaporation tower of claim 1, wherein, The atomization evaporation tower is provided with a liquid uniform distributor (100) and an atomization disc (200), the atomization disc (200) is located below the liquid uniform distributor (100), the atomization disc (200) is connected with a second motor, an inlet pipe is arranged above the liquid uniform distributor (100) for introducing high-salinity wastewater, the liquid uniform distributor (100) includes a groove structure (101) and an overflow weir (102) located on one side of the groove structure (101), the overflow weir (102) is provided with a comb-shaped tooth (103) at a downstream position for segmenting and guiding the flowing high-salinity wastewater, the atomization disc (200) is provided with a plurality of flow dividing plates (201), the circumferential position of the atomization disc (200) is provided with a plurality of guide vanes (202), the guide vanes (202) around the atomization disc (200) form arc-shaped guide grooves (203), and the high-salinity wastewater in the atomization disc (200) is thrown out of the arc-shaped guide grooves (203) when the atomization disc (200) rotates; The bottom of the atomization evaporation tower is provided with a material outlet, the bottom of the atomization evaporation tower is inverted conical and gradually shrinks to the material outlet, a gas collecting ring is arranged below the atomization disc (200) in the atomization evaporation tower, the gas collecting ring is horizontally arranged, an opening is arranged on the gas collecting ring, the opening on the gas collecting ring is arranged at the bottom of the gas collecting ring or the inner side of the gas collecting ring is arranged obliquely downward, a metal filter screen is arranged at the opening, and a hot air outlet extending to the outside of the atomization evaporation tower is connected to the gas collecting ring.

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