Seawater desalination device and method for co-producing bromine and sea salt through seawater desalination

Abstract

The invention discloses a seawater desalination device and a method for co-producing bromine and sea salt through seawater desalination, and belongs to the technical field of seawater desalination. A seawater desalination device comprises a box body and water collecting cloth installed in the box body, and further comprises a sliding rail with a sliding block, the sliding rail is transversely and fixedly connected between the inner walls of the box body, a support is installed below the sliding block, and a driving part for driving the sliding block to slide is arranged on the box body; the installation block is longitudinally installed on the support in a sliding mode, two pressing rollers are rotatably installed on the installation block and attached to the upper surface and the lower surface of water collecting cloth, a water collecting box is installed on the support, a connecting part is arranged on the support, and when the driving part drives the sliding block to transversely slide, the connecting part drives the pressing rollers to longitudinally extrude the water collecting cloth; under the transmission of the driving part and the connecting part, the compression roller is driven to continuously and transversely extrude and longitudinally extrude the water collecting cloth, and the extruded fresh water is collected by the water collecting box, so that the seawater desalination efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of seawater desalination, and in particular to a seawater desalination device and a method for co-producing bromine and sea salt by seawater desalination. Background Art

[0002] Water is the source of life. With the growth of population and the massive waste of water resources, the shortage of fresh water has become a serious problem faced by all mankind. There are abundant seawater resources on the earth, but seawater cannot be drunk directly. Therefore, seawater desalination has become a way to solve the shortage of freshwater resources. In the process of seawater desalination, not only fresh water can be obtained, but bromine and sea salt can also be recovered. The concentration of bromide ions in seawater is relatively high, so bromine can be extracted through appropriate processes. At the same time, the mineral components in seawater can be used to produce sea salt.

[0003] At present, seawater desalination is generally carried out through distillation. Distillation drives seawater to evaporate into fresh water vapor. The fresh water vapor rises and condenses on the surface of the condensation plate or water collecting cloth on the top of the device when it is cold. In order to facilitate the collection of fresh water on the surface of the condensation plate, the condensation plate or the water collecting cloth is usually set at an angle so that the fresh water can slide from the condensation plate or the water collecting cloth surface into the collection groove at the edge.

[0004] As fresh water slides along the surface of the condensation plate or the water-collecting cloth, its volume and weight will gradually increase as it continues to gather. Therefore, fresh water often drips into the seawater below the device before sliding to the edge of the condensation plate or the water-collecting cloth, resulting in the inability to smoothly and effectively collect fresh water, thereby reducing the efficiency of seawater desalination. Summary of the invention

[0005] The purpose of the present invention is to solve the problem in the prior art that fresh water often drips into the seawater below the device before sliding to the edge of the condensation plate or the water collection cloth, resulting in the inability to smoothly and effectively collect the fresh water, thereby reducing the efficiency of seawater desalination. A seawater desalination device and a method for co-producing bromine and sea salt by seawater desalination are proposed.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: A seawater desalination device comprises a box body and a water-collecting cloth installed inside the box body, and further comprises: a slide rail with a slider, which is fixedly connected horizontally between the inner walls of the box body, wherein a bracket is installed below the slider, and the box body is provided with a driving part for driving the slider to slide; a mounting block longitudinally slidably installed on the bracket, wherein two pressure rollers are rotatably installed on the mounting block, and the two pressure rollers are respectively fitted with the upper and lower surfaces of the water-collecting cloth, a water collection box is installed on the bracket, and a connecting part is provided on the bracket, and when the driving part drives the slider to slide horizontally, the connecting part drives the pressure roller to squeeze the water-collecting cloth longitudinally.

[0007] In order to drive the pressure roller to roll transversely and squeeze the water collecting cloth, preferably, the driving part includes a motor fixedly connected to the outside of the box body, the output end of the motor is fixedly connected to a screw rod, and the slider is threadedly connected to the screw rod.

[0008] In order to drive the pressure roller to move longitudinally to extrude the water-collecting cloth, preferably, the connecting part includes a first gear rotatably installed inside the sliding block via a first rotating shaft, a rack meshing with the first gear is fixedly installed on the inner wall of the sliding rail, a spline shaft is fixedly connected to the first rotating shaft, and a sleeve is slidably installed on the spline shaft, wherein two cams are rotatably installed on the bracket via a second rotating shaft, and the two cams are respectively in contact with two mounting blocks, a first belt is transmission-connected between one of the second rotating shafts and the sleeve, and a second belt is transmission-connected between the two second rotating shafts, a support rod is fixedly connected between the inner walls of the bracket, the mounting block is slidably connected to the support rod, and a first spring is fixedly connected between the mounting block and the inner wall of the bracket.

[0009] In order to drive the pressure roller to shake laterally and squeeze the water-collecting cloth, preferably, a fixed block is fixedly connected to the top of the bracket, a first guide rod arranged laterally is fixedly connected between the inner walls of the slider, and the fixed block is slidably connected to the first guide rod, wherein a second spring is fixedly connected between the fixed block and the inner wall of the slider, a first roller in contact with the inner wall of the box is rotatably installed on the bracket, and an arc-shaped protrusion is fixedly connected to the inner wall of the box.

[0010] In order to pour the fresh water in the water collecting box into the fresh water chamber, preferably, two symmetrically arranged fresh water chambers are arranged inside the box body, a water tank is arranged on the outside of the box body, a delivery pipe is connected between the fresh water chamber and the water tank, and a second gear is rotatably installed on the bracket through a third rotating shaft, wherein the water collecting box is fixedly connected to the third rotating shaft, a first gear plate matching the second gear is fixedly installed above the fresh water chamber, and a torsion spring is installed between the third rotating shaft and the bracket.

[0011] In order to facilitate the discharge of sea salt, preferably, two symmetrically arranged baffles are rotatably installed inside the box through the first transmission shaft, a heating wire is installed inside the baffle, and a second transmission shaft is rotatably installed on the box, and a third gear is fixedly connected to the second transmission shaft and one of the first transmission shafts, and the two third gears are meshingly connected, wherein a third belt is transmission-connected between the second transmission shaft and the other first transmission shaft, and unloading doors are rotatably installed on both sides of the box through the third transmission shaft, and fourth belts are transmission-connected between the two third transmission shafts and the two first transmission shafts respectively, and a push plate is slidably installed on the inner wall of the box, a connecting rod is fixedly connected between the push plate and the slider, and the connecting rod is slidably connected to the box.

[0012] In order to automatically drive the discharge of sea salt, further, a fourth transmission shaft is rotatably installed on the box body, and the first bevel gear is fixedly connected to the fourth transmission shaft and the screw rod, and the two first bevel gears are meshingly connected. A fourth gear is rotatably installed on the outer side of the box body through a fifth transmission shaft, wherein a fifth belt is transmission-connected between the fifth transmission shaft and the fourth transmission shaft, and a second tooth plate meshing with the fourth gear and the third gear is laterally slidably installed on the box body, and two tooth blocks meshing with the fourth gear are slidably installed on the second tooth plate, and a third spring is fixedly installed between the tooth block and the second tooth plate.

[0013] In order to scrape off the sea salt attached to the baffle, preferably, the bottom of the bracket is fixedly connected to a connecting rod, the bottom of the connecting rod is fixedly connected to a hollow block, a longitudinally arranged fixing rod is slidably installed on the hollow block, a fourth spring is fixedly connected between the top of the fixing rod and the inner wall of the hollow block, and the bottom of the fixing rod is fixedly connected to a scraper that fits the baffle.

[0014] In order to blow the scraped sea salt upwards, further, a plurality of equidistantly arranged fan blades are rotatably installed on the scraper via a first connecting shaft, a chain is transmission-connected between the first connecting shafts, and a second roller is rotatably installed on the scraper via a second connecting shaft, wherein the second roller is in contact with the inner wall of the box, a second bevel gear is fixedly connected to the second connecting shaft and one of the first connecting shafts, and the two second bevel gears are meshingly connected, and an exhaust pipe and a water inlet pipe are respectively provided on the top and side walls of the box.

[0015] A method for co-producing bromine and sea salt by desalination of seawater, the operating steps are as follows: Step 1: transport seawater into the box through the water inlet pipe of the box; Step 2: Distilling seawater through the heating wire in the baffle; Step 3: Press the fresh water on the water collection cloth into the water collection box through the pressure roller, and pour the fresh water in the water collection box into the fresh water chamber; Step 4: The bromine gas is collected by a gas absorption tower connected to the exhaust pipe of the box through a water collecting cloth to extract bromine; Step 5: Open the baffle to let the sea salt fall down, and then use the push plate to push the sea salt out of the box for collection.

[0016] Compared with the prior art, the present invention provides a seawater desalination device having the following beneficial effects: 1. The seawater desalination device drives the slider to slide along the slide rail through the driving part, thereby driving the pressure roller to laterally squeeze the water collecting cloth. At the same time, the mounting blocks are driven to approach or move away from each other under the transmission of the connecting part, thereby driving the pressure roller to continuously squeeze the water collecting cloth longitudinally. The squeezed fresh water is smoothly and effectively collected by the water collecting box, thereby improving the efficiency of seawater desalination.

[0017] 2. The seawater desalination device rolls on the inner wall of the box through the first roller. When the first roller passes through the arc-shaped protrusion, it is squeezed by it, which will drive the bracket to move synchronously. The bracket drives the fixed block to slide along the first guide rod and compress the second spring. After the first roller leaves the arc-shaped protrusion, the second spring is reset, so that the fixed block moves in the opposite direction along the first guide rod, and then drives the pressure roller on the bracket to shake in the horizontal direction, further squeezing the water collecting cloth, thereby further improving the efficiency of seawater desalination.

[0018] 3. The seawater desalination device can collect the squeezed fresh water in time by setting a water collecting box. During the lateral movement of the water collecting box, the water collecting box drives the second gear to move synchronously. The second gear rotates after contacting the first gear plate, and then drives the water collecting box to rotate through the third rotating shaft, pouring the fresh water inside into the fresh water chamber, and then automatically collecting the fresh water.

[0019] 4. The seawater desalination device drives two baffles to open, and the sea salt falls from the baffles. At the same time, the unloading door is driven to rotate and open under the drive of the first transmission shaft, the fourth belt and the third transmission shaft. At this time, the slider in the box still slides along the slide rail, and the slider drives the push plate to move horizontally through the connecting rod, pushing the fallen sea salt to both sides of the unloading door, so that the sea salt can be automatically collected.

[0020] 5. The seawater desalination device drives the scraper to move horizontally and shake through the bracket, connecting rod, hollow block and fixed rod, continuously cleans the sea salt attached to the surface of the baffle, prevents the sea salt from crystallizing on the surface of the baffle, thereby affecting the effect of heat transfer. When the bottom of the scraper is worn, the compressed fourth spring gradually resets, so that the scraper is always in contact with the baffle surface to prevent a gap between the two, so as to improve the long-term stability of the scraping work.

[0021] 6. The seawater desalination device rolls on the inner wall of the box through the second roller, and drives the fan blades to rotate under the transmission of the second connecting shaft, the second bevel gear, the first connecting shaft and the chain, so as to blow the scraped sea salt upward, move the sea salt upward, and prevent the sea salt from settling to the bottom of the water, thereby further improving the effect of scraping the sea salt. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is an axonometric structural schematic diagram of a seawater desalination device proposed by the present invention; Figure 2 A seawater desalination device proposed by the present invention Figure 1 A schematic diagram of the enlarged structure of the middle part A; Figure 3 A schematic diagram of the cutaway structure of a seawater desalination device proposed by the present invention Figure 1 ; Figure 4A schematic diagram of the cutaway structure of a seawater desalination device proposed by the present invention Figure 2 ; Figure 5 This is a schematic diagram of the structure of a pressure roller and a water collecting box of a seawater desalination device proposed by the present invention; Figure 6 A seawater desalination device proposed by the present invention Figure 5 The enlarged structural diagram of the middle B part; Figure 7 A schematic diagram of the cross-sectional structure of a slider of a seawater desalination device proposed by the present invention; Figure 8 A schematic diagram of the scraper and fan blade structure of a seawater desalination device proposed by the present invention; Fig. 9 A seawater desalination device proposed by the present invention Figure 8 The enlarged structural diagram of the middle C part; Fig.10 This is a schematic diagram of the partial cross-section structure of a scraper of a seawater desalination device proposed by the present invention.

[0023] In the figure: 1, box body; 201, slider; 202, slide rail; 203, bracket; 204, mounting block; 205, pressure roller; 206, motor; 207, screw rod; 208, first rotating shaft; 209, first gear; 210, rack; 211, spline shaft; 212, sleeve; 213, second rotating shaft; 214, cam; 215, first belt; 216, second belt; 217, support rod; 218, first spring; 301, fixing block; 302, first guide rod; 303, second spring; 304, first roller; 305, arc convex; 306, third rotating shaft; 307, second gear; 308, first tooth plate; 4, water collecting cloth; 5, fresh water chamber; 6, water box; 7, conveying pipe; 8, first transmission shaft; 9, baffle; 10, second transmission shaft; 11, third gear; 12, third belt; 13, third transmission shaft; 14, unloading door; 15, fourth belt; 16, push plate; 17, connecting rod; 18, fourth transmission shaft; 19, first bevel gear; 20, fifth transmission shaft; 21, fourth gear; 22, fifth belt; 23, second tooth plate; 24, tooth block; 25, third spring; 26, water collecting box; 27, connecting rod; 28, hollow block; 29, fixing rod; 30, fourth spring; 31, scraper; 32, first connecting shaft; 33, fan blade; 34, chain; 35, second connecting shaft; 36, second roller; 37, second bevel gear. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] 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. Example

[0026] Reference Figure 1-Figure 10 A desalination device, comprising a box body 1 and a water collecting cloth 4 installed inside the box body 1, the water collecting cloth 4 can be made of polyester, polypropylene, non-woven fabric and the like, and also comprising: a slide rail 202 with a slider 201, which is laterally fixedly connected between the inner walls of the box body 1, wherein a bracket 203 is installed below the slider 201, and a driving part for driving the slider 201 to slide is provided on the box body 1; a mounting block 204 longitudinally slidably installed on the bracket 203, and two notches for sliding the mounting block 204 are provided on both sides of the bracket 203, wherein the mounting block 204 is provided with a plurality of grooves for sliding. In the figure, two pressure rollers 205 are rotatably mounted on the mounting block 204, and the length of the pressure rollers 205 is greater than the width of the water-collecting cloth 4, so that the pressure rollers 205 will not move out of the water-collecting cloth 4 when shaking back and forth, and the two pressure rollers 205 are respectively fitted with the upper and lower surfaces of the water-collecting cloth 4, and a water-collecting box 26 for catching the fallen fresh water is installed on the bracket 203, and the water-collecting box 26 is directly above the pressure rollers 205. A connecting part is provided on the bracket 203, and when the driving part drives the slider 201 to slide horizontally, the connecting part drives the pressure rollers 205 to squeeze the water-collecting cloth 4 longitudinally.

[0027] Specifically, the driving part drives the slider 201 to slide along the slide rail 202, thereby driving the pressure roller 205 to laterally squeeze the water-collecting cloth 4. At the same time, the mounting blocks 204 are driven to move closer to or away from each other under the transmission of the connecting part, thereby driving the pressure roller 205 to continuously squeeze the water-collecting cloth 4 longitudinally. The squeezed fresh water is smoothly and effectively collected by the water-collecting box 26, thereby improving the efficiency of seawater desalination.

[0028] The driving unit includes a motor 206 fixedly connected to the outside of the box body 1, the motor 206 is electrically connected to an external power supply, the output end of the motor 206 is fixedly connected to a screw rod 207, the screw rod 207 is rotatably connected to the box body 1 through a bearing, and the slider 201 is threadedly connected to the screw rod 207.

[0029] Specifically, the motor 206 is started, and its output end drives the screw rod 207 to rotate, thereby driving the slider 201 to slide along the slide rail 202, thereby driving the pressing roller 205 below to press the water collecting cloth 4 laterally.

[0030] The connecting part includes a first gear 209 rotatably mounted inside the slider 201 through a first rotating shaft 208, a rack 210 meshing with the first gear 209 is fixedly mounted on the inner wall of the slide rail 202, a spline shaft 211 is fixedly connected to the first rotating shaft 208, a sleeve 212 is slidably mounted on the spline shaft 211, and the sleeve 212 is sleeved on the bracket 203 for supporting the sleeve 212, wherein two cams 214 are rotatably mounted on the bracket 203 through a second rotating shaft 213, and the two cams 214 are respectively in contact with two mounting blocks 204, a first belt 215 is transmission-connected between one of the second rotating shafts 213 and the sleeve 212, and a second belt 216 is transmission-connected between the two second rotating shafts 213, a support rod 217 is fixedly connected between the inner walls of the bracket 203, the mounting block 204 is slidably connected to the support rod 217, and a first spring 218 is fixedly connected between the mounting block 204 and the inner wall of the bracket 203.

[0031] Specifically, when the pressure roller 205 laterally squeezes the water-collecting cloth 4, that is, when the slider 201 slides along the slide rail 202, the two cams 214 are driven to rotate under the transmission of the rack 210, the first gear 209, the first rotating shaft 208, the spline shaft 211, the sleeve 212, the first belt 215, the second belt 216 and the second rotating shaft 213. The cam 214 squeezes the mounting block 204, causing the mounting block 204 to slide longitudinally along the support rod 217 and compress the first spring 218. Thereafter, the first spring 218 is reset, causing the mounting block 204 to slide in the opposite direction, thereby driving the pressure roller 205 to continuously squeeze the water-collecting cloth 4 longitudinally.

[0032] A fixing block 301 is fixedly connected to the top of the bracket 203, and a sliding groove for sliding the fixing block 301 is provided at the bottom of the slider 201. A transversely arranged first guide rod 302 is fixedly connected between the inner walls of the slider 201, and the fixing block 301 is slidably connected to the first guide rod 302, wherein a second spring 303 is fixedly connected between the fixing block 301 and the inner wall of the slider 201, and a first roller 304 in contact with the inner wall of the box body 1 is rotatably mounted on the bracket 203, and an arc-shaped protrusion 305 is fixedly connected to the inner wall of the box body 1, and the arc-shaped protrusion 305 is arranged on the moving path of the first roller 304, and the number of the arc-shaped protrusions 305 is set to 24-28, preferably 26, and the distance between two connected arc-shaped protrusions 305 is the same as the diameter of the first roller 304, and the arc-shaped protrusion 305 can be hemispherical, truncated cone and elliptical, and can also be set as a wedge block.

[0033] Specifically, when the pressure roller 205 laterally squeezes the water-collecting cloth 4, that is, when the slider 201 slides along the slide rail 202, the bracket 203 will drive the first roller 304 to roll on the inner wall of the box body 1. When the first roller 304 passes through the arc-shaped protrusion 305, it is squeezed by it, which will drive the bracket 203 to move synchronously. The bracket 203 drives the fixed block 301 to slide along the first guide rod 302 and compress the second spring 303. After the first roller 304 leaves the arc-shaped protrusion 305, the second spring 303 is reset, so that the fixed block 301 moves in the opposite direction along the first guide rod 302, thereby driving the pressure roller 205 on the bracket 203 to shake in the horizontal direction. This horizontal direction is perpendicular to the lateral movement direction of the pressure roller 205, further squeezing the water-collecting cloth 4, thereby further improving the efficiency of seawater desalination. Example

[0034] Reference Figure 1 as well as Figure 3-Figure 5 , which is basically the same as the first embodiment, furthermore, specifically discloses a specific implementation scheme of pouring the fresh water in the water collecting box 26 into the fresh water chamber 5.

[0035] Two symmetrically arranged fresh water chambers 5 are arranged inside the casing 1. The cross section of the fresh water chamber 5 is rectangular and is used to separate the sea water chamber in the casing 1. A sea water chamber is formed between the baffle 9, the casing 1 and the fresh water chamber 5. A water tank 6 is arranged on the outside of the casing 1. A delivery pipe 7 is connected between the fresh water chamber 5 and the water tank 6. A one-way valve for one-way flow of fresh water into the water tank 6 is installed on the delivery pipe 7. A second gear 307 is rotatably installed on the bracket 203 through the third rotating shaft 306, wherein the water collecting box 26 is fixedly connected to the third rotating shaft 306, and the width of the water collecting box 26 is much larger than the width of the pressure roller 205, so that the squeezed fresh water can stably flow into the water collecting box 26. The top of the water collecting box 26 is open, and a first tooth plate 308 matching the second gear 307 is fixedly installed above the fresh water chamber 5, and the first tooth plate 308 is located above the fresh water chamber 5. A torsion spring is installed between the third rotating shaft 306 and the bracket 203.

[0036] Specifically, when the pressure roller 205 squeezes the water collecting cloth 4 laterally, that is, when the pressure roller 205 and the water collecting box 26 move laterally, the water collecting box 26 drives the second gear 307 to move synchronously, and the second gear 307 rotates after contacting the first tooth plate 308, and then drives the water collecting box 26 to rotate through the third rotating shaft 306, and pours the fresh water inside into the fresh water chamber 5, and then automatically collects the fresh water. At the same time, in this process, the third rotating shaft 306 tightens the torsion spring, and after the second gear 307 leaves the first tooth plate 308, the torsion spring drives the water collecting box 26 to reset, so that it is in a horizontal state for subsequent work. Example

[0037] Reference Figure 1-Figure 4, which is basically the same as Example 2, and further discloses a specific implementation plan for producing sea salt.

[0038] Two symmetrically arranged baffles 9 are rotatably installed inside the box body 1 through the first transmission shaft 8. After entering the box body 1, seawater falls into the top of the baffle 9. A heating wire for heating the seawater is installed inside the baffle 9. A second transmission shaft 10 is rotatably installed on the box body 1. The second transmission shaft 10 and one of the first transmission shafts 8 are fixedly connected with a third gear 11, and the two third gears 11 are meshed and connected, wherein a third belt 12 is transmission-connected between the second transmission shaft 10 and the other first transmission shaft 8. A discharge door 14 is rotatably installed on both sides of the box body 1 through the third transmission shaft 13. During distillation, the discharge door 14 is closed to prevent heat loss. The two third transmission shafts 13 are respectively transmission-connected with the two first transmission shafts 8 with fourth belts 15. A push plate 16 for pushing out sea salt is slidably installed on the inner wall of the box body 1, and a connecting rod 17 is fixedly connected between the push plate 16 and the slider 201, and the connecting rod 17 is slidably connected to the box body 1.

[0039] Specifically, after completing one distillation, sea salt is stored on the baffle 9. By driving the two baffles 9 to open, the sea salt falls from the baffle 9, and at the same time, the unloading door 14 is driven to rotate and open under the transmission of the first transmission shaft 8, the fourth belt 15 and the third transmission shaft 13. At this time, the slider 201 in the box body 1 still slides along the slide rail 202, and the slider 201 drives the push plate 16 to move horizontally through the connecting rod 17, and pushes the fallen sea salt to both sides of the unloading door 14, so that the sea salt can be automatically collected. When the baffle 9 is opened, the two baffles 9 are driven to rotate in the opposite direction and open synchronously under the transmission of the first transmission shaft 8, the third gear 11, the second transmission shaft 10 and the third belt 12.

[0040] A fourth transmission shaft 18 is rotatably mounted on the housing 1, and a first bevel gear 19 is fixedly connected to the fourth transmission shaft 18 and the screw rod 207, and the two first bevel gears 19 are meshedly connected. A fourth gear 21 is rotatably mounted on the outer side of the housing 1 through a fifth transmission shaft 20, wherein a fifth belt 22 is transmission-connected between the fifth transmission shaft 20 and the fourth transmission shaft 18, and a second toothed plate 23 meshedly connected to the fourth gear 21 and the third gear 11 on the first transmission shaft 8 is transversely slidably mounted on the housing 1, and a limiting rod for transverse sliding of the second toothed plate 23 is fixedly connected to the housing 1, such as Figure 2 As shown, the second tooth plate 23 is in the left extreme position, two tooth blocks 24 meshing with the fourth gear 21 are slidably mounted on the second tooth plate 23 , and a third spring 25 is fixedly mounted between the tooth block 24 and the second tooth plate 23 .

[0041] Specifically, when the motor 206 is started, the screw rod 207 is driven to rotate, and the fourth gear 21 is driven to rotate under the transmission of the first bevel gear 19, the fourth transmission shaft 18, the fifth belt 22 and the fifth transmission shaft 20. At this time, the fourth gear 21 drives the tooth block 24 to slide laterally and compress the third spring 25. The third spring 25 is reset, and the tooth block 24 continues to move back and forth laterally. At this time, the second tooth plate 23 is in the left extreme position and cannot move. At the same time, the baffle 9 is in a closed state in a horizontal position. When sea salt needs to be collected, the motor 206 is controlled to rotate in the opposite direction. At this time, the second tooth plate 23 moves to the right, and then the two baffles 9 are driven to rotate in the opposite direction through the transmission of the first transmission shaft 8, the third gear 11, the second transmission shaft 10 and the third belt 12, and opened synchronously. When the second tooth plate 23 is in the right extreme position, the fourth gear 21 meshes with another tooth block 24, and the second tooth plate 23 no longer moves. At this time, the baffle 9 is in a fixed open position. Example

[0042] Reference Figure 1 , Figure 3-Figure 4 as well as Figure 8-Figure 10 , which is basically the same as the third embodiment, and further discloses a specific implementation scheme for scraping off the sea salt attached to the baffle 9.

[0043] The bottom of the bracket 203 is fixedly connected to a connecting rod 27, that is, the scraper 31 can move with the movement of the bracket 203, and the bottom of the connecting rod 27 is fixedly connected to a hollow block 28, and a longitudinally arranged fixing rod 29 is slidably installed on the hollow block 28. A fourth spring 30 is fixedly connected between the top of the fixing rod 29 and the inner wall of the hollow block 28, and the fourth spring 30 is initially in a compressed state. The bottom of the fixing rod 29 is fixedly connected to a scraper 31 that fits with the baffle 9.

[0044] Specifically, in the process of the pressure roller 205 squeezing the water-collecting cloth 4, the bracket 203 will drive the connecting rod 27 to move synchronously, and then drive the scraper 31 to move horizontally and shake through the hollow block 28 and the fixed rod 29, continuously cleaning the sea salt attached to the surface of the baffle 9 to prevent the sea salt from crystallizing on the surface of the baffle 9, thereby affecting the heat transfer effect. When the bottom of the scraper 31 is worn, the compressed fourth spring 30 is gradually reset, so that the scraper 31 is always in contact with the surface of the baffle 9 to prevent a gap between the two, so as to improve the long-term stability of the scraping work.

[0045] A plurality of equidistantly arranged fan blades 33 are rotatably mounted on the scraper 31 through a first connecting shaft 32. The fan blades 33 are arranged on both sides of the scraper 31, and the number of fan blades 33 on each side is set to 8 groups to 12 groups, preferably 10 groups. A chain 34 is transmission-connected between the first connecting shafts 32, and a second roller 36 is rotatably mounted on the scraper 31 through a second connecting shaft 35, wherein the second roller 36 contacts the inner wall of the box body 1, and a second bevel gear 37 is fixedly connected to the second connecting shaft 35 and one of the first connecting shafts 32, and the two second bevel gears 37 are meshingly connected. An exhaust pipe and a water inlet pipe are respectively arranged on the top and side walls of the box body 1, and the exhaust pipe is connected to a gas absorption tower for collecting bromine gas, and the water inlet pipe is connected to an external seawater pipeline. An observation window and a scale are arranged on the box body 1 for detecting the amount of seawater in the box body 1 to prevent the height of the seawater from exceeding the water collecting box 26.

[0046] Specifically, when the scraper 31 scrapes off the sea salt, it will drive the fan blades 33 to move synchronously, and at the same time drive the second roller 36 to roll on the inner wall of the box body 1, and drive the fan blades 33 to rotate under the transmission of the second connecting shaft 35, the second bevel gear 37, the first connecting shaft 32 and the chain 34, so as to blow the scraped sea salt upward, move the sea salt upward, and prevent the sea salt from sinking to the bottom of the water, thereby further improving the effect of scraping off the sea salt.

[0047] A method for co-producing bromine and sea salt by desalination of seawater, the operating steps are as follows: Step 1: transporting seawater into the box 1 through the water inlet pipe of the box 1; Step 2: distilling the seawater through the heating wire in the baffle 9; Step 3: Press the fresh water on the water collecting cloth 4 into the water collecting box 26 through the pressing roller 205, and pour the fresh water in the water collecting box 26 into the fresh water chamber 5; Step 4: The bromine gas passes through the water collecting cloth 4 and is collected by the gas absorption tower connected to the exhaust pipe of the box 1 to extract bromine; Step 5: The baffle plate 9 is opened to allow the sea salt to fall down, and the push plate 16 pushes the sea salt out of the box 1 for collection.

[0048] The seawater desalination device introduces seawater not exceeding the water collecting box 26 into the box body 1, distills the seawater under the heating of the heating wire, and the seawater evaporates to form fresh water vapor. The fresh water vapor rises and condenses on the surface of the water collecting cloth 4 when it is cold. By starting the motor 206, its output end drives the screw rod 207 to rotate, and then drives the slider 201 to slide along the slide rail 202, thereby driving the pressure roller 205 below to laterally squeeze the water collecting cloth 4. When the pressure roller 205 laterally squeezes the water collecting cloth 4, that is, when the slider 201 slides along the slide rail 202, the two cams 214 are driven to rotate under the transmission of the rack 210, the first gear 209, the first rotating shaft 208, the spline shaft 211, the sleeve 212, the first belt 215, the second belt 216 and the second rotating shaft 213, and the cam 214 squeezes the mounting block 204, so that the mounting block 204 moves longitudinally along the support rod 217. The first spring 218 is then reset, causing the mounting block 204 to slide in the opposite direction, thereby driving the pressure roller 205 to continuously squeeze the water collecting cloth 4 longitudinally. At the same time, the bracket 203 drives the first roller 304 to roll on the inner wall of the box body 1. When the first roller 304 passes through the arc-shaped protrusion 305, it is squeezed by it, which drives the bracket 203 to move synchronously. The bracket 203 drives the fixed block 301 to slide along the first guide rod 302 and compress the second spring 303. After the first roller 304 leaves the arc-shaped protrusion 305, the second spring 303 is reset, causing the fixed block 301 to move in the opposite direction along the first guide rod 302, thereby driving the pressure roller 205 on the bracket 203 to shake in the horizontal direction, which is perpendicular to the lateral movement direction of the pressure roller 205, further squeezing the water collecting cloth 4, and the squeezed fresh water falls into the water collecting box 26. In the process of collecting fresh water, the water collecting box 26 drives the second gear 307 to move synchronously. The second gear 307 rotates after contacting the first tooth plate 308, and then drives the water collecting box 26 to rotate through the third rotating shaft 306, pouring the fresh water inside into the fresh water chamber 5, and flowing into the water tank 6 through the delivery pipe 7. The bromine gas in the distillation process is collected by the gas absorption tower through the exhaust pipe. In the process of distillation, the bracket 203 will drive the connecting rod 27 to move synchronously, and then drive the scraper 31 to move horizontally and shake through the hollow block 28 and the fixed rod 29, continuously cleaning the sea salt attached to the surface of the baffle 9, preventing the sea salt from crystallizing on the surface of the baffle 9, thereby affecting the effect of heat transfer. At the same time, the scraper 31 will drive the fan blade 33 to move synchronously, and at the same time drive the second roller 36 It rolls on the inner wall of the box body 1, and drives the fan blades 33 to rotate under the transmission of the second connecting shaft 35, the second bevel gear 37, the first connecting shaft 32 and the chain 34, so as to blow the scraped sea salt upward, move the sea salt upward, and prevent the sea salt from settling to the bottom of the water, thereby further improving the effect of scraping the sea salt. After the production is completed, there is sea salt on the baffle 9, and the two baffles 9 are driven to open, and the sea salt falls from the baffle 9. At the same time, the unloading door 14 is driven to rotate and open under the transmission of the first transmission shaft 8, the fourth belt 15 and the third transmission shaft 13. At this time, the slider 201 in the box body 1 still slides along the slide rail 202, and the slider 201 drives the push plate 16 to move horizontally through the connecting rod 17, and pushes the fallen sea salt to both sides of the unloading door 14, so that the sea salt can be automatically collected.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, and they should be covered by the protection scope of the present invention.

Claims

1. A seawater desalination device, comprising a housing (1) and a water collecting cloth (4) installed inside the housing (1), characterized in that: Also includes: A slide rail (202) with a slider (201) is transversely fixedly connected between the inner walls of the box body (1). A bracket (203) is installed below the slider (201), and a driving part for driving the slider (201) to slide is provided on the box body (1); a mounting block (204) mounted on the bracket (203) for longitudinal sliding movement, Two pressure rollers (205) are rotatably mounted on the mounting block (204), and the two pressure rollers (205) are respectively fitted with the upper and lower surfaces of the water collecting cloth (4). A water collecting box (26) is mounted on the bracket (203), and a connecting portion is provided on the bracket (203). When the driving portion drives the slider (201) to slide horizontally, the connecting portion drives the pressure rollers (205) to squeeze the water collecting cloth (4) longitudinally.

2. A seawater desalination device according to claim 1, characterized in that: The driving unit comprises a motor (206) fixedly connected to the outside of the box body (1); an output end of the motor (206) is fixedly connected to a screw rod (207); and the slider (201) is threadedly connected to the screw rod (207).

3. A seawater desalination device according to claim 1, characterized in that: The connecting portion comprises a first gear (209) rotatably mounted inside the slider (201) via a first rotating shaft (208); a rack (210) meshing with the first gear (209) is fixedly mounted on the inner wall of the slide rail (202); a spline shaft (211) is fixedly connected to the first rotating shaft (208); and a sleeve (212) is slidably mounted on the spline shaft (211). Two cams (214) are rotatably mounted on the bracket (203) via a second rotating shaft (213); the two cams (214) are in contact with two mounting blocks (204) respectively; a first belt (215) is transmission-connected between one of the second rotating shafts (213) and the sleeve (212); a second belt (216) is transmission-connected between the two second rotating shafts (213); a support rod (217) is fixedly connected between the inner walls of the bracket (203); the mounting block (204) is slidably connected to the support rod (217); and a first spring (218) is fixedly connected between the mounting block (204) and the inner wall of the bracket (203).

4. A seawater desalination device according to claim 1, characterized in that: A fixing block (301) is fixedly connected to the top of the bracket (203), a first guide rod (302) disposed laterally is fixedly connected between the inner walls of the sliding block (201), and the fixing block (301) is slidably connected to the first guide rod (302). A second spring (303) is fixedly connected between the fixed block (301) and the inner wall of the slider (201), a first roller (304) is rotatably mounted on the bracket (203) and contacts the inner wall of the box body (1), and an arc-shaped protrusion (305) is fixedly connected to the inner wall of the box body (1).

5. A seawater desalination device according to claim 1, characterized in that: Two symmetrically arranged fresh water chambers (5) are arranged inside the box body (1); a water tank (6) is arranged outside the box body (1); a delivery pipe (7) is connected between the fresh water chamber (5) and the water tank (6); a second gear (307) is rotatably mounted on the bracket (203) via a third rotating shaft (306); The water collecting box (26) is fixedly connected to the third rotating shaft (306), a first tooth plate (308) matching the second gear (307) is fixedly installed above the fresh water chamber (5), and a torsion spring is installed between the third rotating shaft (306) and the bracket (203).

6. A seawater desalination device according to claim 2, characterized in that: Two symmetrically arranged baffles (9) are rotatably mounted inside the box body (1) via a first transmission shaft (8), a heating wire is mounted inside the baffles (9), a second transmission shaft (10) is rotatably mounted on the box body (1), the second transmission shaft (10) and one of the first transmission shafts (8) are both fixedly connected to a third gear (11), and the two third gears (11) are meshingly connected. A third belt (12) is transmission-connected between the second transmission shaft (10) and another first transmission shaft (8); a material discharge door (14) is rotatably mounted on both sides of the box body (1) via the third transmission shaft (13); a fourth belt (15) is transmission-connected between the two third transmission shafts (13) and the two first transmission shafts (8) respectively; a push plate (16) is slidably mounted on the inner wall of the box body (1); a connecting rod (17) is fixedly connected between the push plate (16) and the slider (201); and the connecting rod (17) is slidably connected to the box body (1).

7. A seawater desalination device according to claim 6, characterized in that: A fourth transmission shaft (18) is rotatably mounted on the housing (1), a first bevel gear (19) is fixedly connected to the fourth transmission shaft (18) and the lead screw (207), two first bevel gears (19) are meshingly connected, and a fourth gear (21) is rotatably mounted on the outer side of the housing (1) via a fifth transmission shaft (20). A fifth belt (22) is transmission-connected between the fifth transmission shaft (20) and the fourth transmission shaft (18); a second toothed plate (23) meshingly connected with both the fourth gear (21) and the third gear (11) is laterally slidably mounted on the housing (1); two toothed blocks (24) meshing with the fourth gear (21) are slidably mounted on the second toothed plate (23); and a third spring (25) is fixedly mounted between the toothed block (24) and the second toothed plate (23).

8. A seawater desalination device according to claim 6, characterized in that: The bottom of the bracket (203) is fixedly connected to a connecting rod (27), the bottom of the connecting rod (27) is fixedly connected to a hollow block (28), a longitudinally arranged fixing rod (29) is slidably mounted on the hollow block (28), a fourth spring (30) is fixedly connected between the top of the fixing rod (29) and the inner wall of the hollow block (28), and a scraper (31) that fits the baffle (9) is fixedly connected to the bottom of the fixing rod (29).

9. A seawater desalination device according to claim 8, characterized in that: A plurality of equally spaced blades (33) are rotatably mounted on the scraper (31) via a first connecting shaft (32); a chain (34) is transmission-connected between the first connecting shafts (32); a second roller (36) is rotatably mounted on the scraper (31) via a second connecting shaft (35); The second roller (36) is in contact with the inner wall of the box body (1), the second connecting shaft (35) and one of the first connecting shafts (32) are both fixedly connected with a second bevel gear (37), the two second bevel gears (37) are meshingly connected, and the top and side walls of the box body (1) are respectively provided with an exhaust pipe and a water inlet pipe.

10. A method for co-producing bromine and sea salt by desalination of seawater, comprising a seawater desalination device according to any one of claims 1 to 9, characterized in that: The steps are as follows: Step 1: transporting seawater into the box (1) through the water inlet pipe of the box (1); Step 2: distilling the seawater through the heating wire in the baffle (9); Step 3: Pressing the fresh water on the water collecting cloth (4) into the water collecting box (26) by means of a pressing roller (205), and pouring the fresh water in the water collecting box (26) into the fresh water chamber (5); Step 4: The bromine gas passes through the water collecting cloth (4) and is collected by a gas absorption tower connected to the exhaust pipe of the box (1), and bromine is extracted; Step 5: The baffle plate (9) is opened to allow the sea salt to fall down, and the push plate (16) pushes the sea salt out of the box (1) for collection.

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