Dehydration device for coal tar production and its usage method

Abstract

The present invention relates to the technical field of coal tar production, specifically a dehydration device for coal tar production and its use method, which includes a bottom plate. On one side of the upper surface of the bottom plate, a dehydration tank is fixedly installed. There is a middle position tank on one side of the dehydration tank. The middle position tank is fixedly connected to the bottom plate and is used for discharging the flue gas generated by the dehydration tank. There is a heat collection tank on the side of the middle position tank away from the dehydration tank. On one side of the inner cavity of the dehydration tank, a stirring component is fixedly installed. The stirring component is used for stirring the coal tar during heating. A cleaning component is used for scraping and cleaning the bottom of the dehydration tank after the coal tar is dehydrated. By arranging the stirring component on one side of the dehydration tank, it is used to stir the coal tar during heating and dehydration, so that the coal tar slowly flows, improving the dehydration efficiency and not destroying the molecules inside the coal tar, avoiding the change of the molecules inside the coal tar caused by violent stirring during heating and dehydration.

Description

Technical Field

[0001] The present invention relates to the technical field of coal tar production, specifically to a dehydration device for coal tar production and its usage method. Background Technique

[0002] Coal tar is one of the products in the crude gas generated by the pyrolysis of coal in the coking industry. At normal temperature and pressure, its product is in a black viscous liquid state, and various products can be separated, such as camphor balls, asphalt, plastics, pesticides, etc. The water content in coal tar is relatively high, so it needs to be dehydrated.

[0003] Chinese Patent (application number: CN202221894690.6) discloses a coal tar dehydration device. The rotating rod drives the moving rod to make the reciprocating impact block reciprocate in the chute on the dehydration cylinder, so that when the reciprocating impact block collides with the abutting block, it causes the guide pipe to shake, making the transmission of coal tar inside the guide pipe faster and improving the dehydration efficiency of the device. The circular scraper scrapes the coal tar adhered to the inner wall of the dehydration cylinder to avoid corrosion of the dehydration cylinder.

[0004] However, there are some problems in the existing dehydration devices for coal tar production during use:

[0005] 1. Since coal tar is in a viscous liquid state, most coal tar dehydration devices usually stir coal tar violently to improve the dehydration efficiency when dehydrating coal tar. However, violent stirring will damage the components of coal tar and the stirring parts are not easy to disassemble and clean, so the residual coal tar will corrode the mixer.

[0006] 2. Since a large amount of hot gas is generated during the dehydration of coal tar, the above patent does not recycle the hot gas during coal tar dehydration, and does not collect the large amount of water vapor generated during the heating of coal tar, resulting in the water vapor gathering at the top of the side wall of the device and finally forming water condensate droplets that drip back into the coal tar, reducing the dehydration efficiency of coal tar.

[0007] Based on the above, a dehydration device for coal tar production and its usage method are proposed. Summary of the Invention

[0008] The purpose of the present invention is to provide a dehydration device for coal tar production and its usage method to solve the problems raised in the above background technique.

[0009] The purpose of the present invention can be achieved through the following technical solutions:

[0010] A dehydration device for coal tar production, including a bottom plate. On one side of the upper surface of the bottom plate, a dehydration tank is fixedly installed. There is a middle position tank on one side of the dehydration tank. The middle position tank is fixedly connected to the bottom plate and is used for discharging the flue gas generated by the dehydration tank. There is a heat collection tank on the side of the middle position tank away from the dehydration tank. The heat collection tank is fixedly connected to the bottom plate. On one side of the inner cavity of the dehydration tank, a stirring component is fixedly installed. The stirring component is used for stirring the coal tar during heating. On both sides of the middle part of the inner cavity of the dehydration tank, a cleaning component is provided. The cleaning component is used for scraping and cleaning the bottom of the dehydration tank after the coal tar is dehydrated.

[0011] Preferably, a smoke exhaust unit is fixedly installed in the middle of the inner cavity of the middle position tank. The smoke exhaust unit is used for discharging the flue gas generated when the coal tar in the dehydration tank is heated into the heat collection tank for heat energy recovery. A wiping unit is provided on the upper surface of the middle position tank. The wiping unit extends to the upper part of the dehydration tank. The wiping unit is used for wiping the water vapor on the upper part of the dehydration tank during the heating and dehydration of the coal tar, so as to prevent the water vapor from condensing and dripping into the interior of the dehydration tank. On both sides of the upper surface of the dehydration tank, an extrusion unit is detachably installed. The extrusion unit is used for extruding the wiping unit.

[0012] Preferably, grooves are opened on both sides of the inner cavity of the dehydration tank. The two grooves are connected by a pipeline. A drainage groove is provided at the lower part of one of the grooves. The drainage groove is opened on the dehydration tank. A T-shaped groove is provided at the lower part of the drainage groove. A collection box is slidably installed in the T-shaped groove. Adsorption plates are detachably installed in both grooves. The adsorption plates are composed of multiple grids. A partition plate is fixedly installed on one side of the inner cavity of the dehydration tank. A moving plate is slidably installed in the middle of the partition plate. One side of the top of the partition plate is rotatably threaded with a lifting rod. The bottom of the lifting rod is rotatably connected to the partition plate. Placement grooves are opened on both sides of the top of the dehydration tank. Ventilation plates are placed in the two placement grooves.

[0013] Preferably, the stirring component includes a cylinder. At the bottom of the inner cavity of the cylinder, a motor is fixedly installed. The output end of the motor is fixedly installed with a rotating rod. The rotating rod is a two-section detachable structure. The rotating rod is circumferentially provided with a side groove along its axis. A clamping block is arranged in the side groove. Springs are arranged on both the upper and lower sides of the clamping block. The side of the spring away from the clamping block is connected to the rotating rod. A locking groove is opened at the top of the clamping block. A rotating rod is rotatably installed in the middle of the inner cavity of the rotating rod. Extrusion blocks are fixedly installed on the outer side of the rotating rod along its axis. A sleeve is sleeved on the outer side of the rotating rod. A clamping rod is slidably installed at the top of the sleeve. Stirring blades are fixedly installed on the outer side of the sleeve along its axis.

[0014] Preferably, the cleaning component includes a moving groove. A moving block is slidably installed in the moving groove through an electric slider. A connecting plate is fixedly installed on one side of the moving block. The connecting plate is L-shaped. A screw rod is rotatably threaded at the top of the connecting plate. The bottom end of the screw rod is rotatably installed with a spacer plate. The spacer plate is slidably connected to one side of the connecting plate. A scraping plate is hinged to the lower surface of the spacer plate. A driven wedge block is fixedly installed on one side of the scraping plate. An extrusion rod is arranged on one side of the screw rod. The extrusion rod is rotatably threaded with the connecting plate. The bottom end of the extrusion rod is rotatably installed with a driving wedge block.

[0015] Preferably, the smoke exhaust unit includes an exhaust member. An exhaust hole is provided in the middle of the inner cavity of the exhaust member, and the exhaust hole communicates with the side wall of the dehydration tank. A rotating cylinder is provided on one side of the exhaust member. The rotating cylinder penetrates through the top of the middle box, and the rotating cylinder is rotatably connected to the middle box. A fitting cylinder is fixedly installed on the outer periphery of the rotating cylinder. There are multiple fitting cylinders, and the fitting cylinders communicate with the rotating cylinder. A rectangular box is provided on the side of the rotating cylinder away from the dehydration tank, and the rectangular box is fixedly connected to the middle box.

[0016] Preferably, the middle part of the rectangular box is a hollow structure. Guide grooves are opened on both sides of the rectangular box. A moving member is slidably installed in the rectangular box. A connecting block is slidably installed in the guide groove, and the connecting block is fixedly connected to the moving member. A return spring is jointly connected between the connecting block and the guide groove. A contact frame is fixedly installed on one side of the moving member. Both ends of the contact frame are arc-shaped. Smoke collecting grooves are opened through the middle parts of the contact frame and the moving member.

[0017] Preferably, the wiping unit includes driving wheels. There are multiple driving wheels, and the driving wheels are fixedly connected to the rotating cylinder. Rack plates are jointly engaged on both sides of the multiple driving wheels. The rack plates are slidably connected to the middle box. Connecting frames are fixedly installed on the tops of both sides of the rack plates. A hydraulic rod is fixedly installed on the lower surface of the connecting frame. A wiping plate is fixedly installed at the bottom of the hydraulic rod. The wiping end of the wiping plate is made of sponge material.

[0018] Preferably, the extrusion unit includes fixing holes. The fixing holes are opened at the four corners of the upper surface of the dehydration tank. Fixing rods are placed in the fixing holes. A U-shaped frame is jointly fixedly installed between the two fixing rods on each side. Rotating shafts are rotatably installed on both sides inside the U-shaped frame. A triangular hopper is jointly fixedly installed between the rotating shafts on both sides. A circular plate is fixedly installed in the middle of the rotating shaft. Electric push rods are hinged on both sides of the U-shaped frame. One end of the electric push rod away from the U-shaped frame is hinged to the circular plate. An extrusion plate is fixedly installed on one side of the triangular hopper. A collecting hopper is detachably installed in the middle of the lower surface of the U-shaped frame.

[0019] Preferably, another object of the present invention is to provide a usage method of a dehydration device for coal tar production, including the following steps:

[0020] S1: Heating of coal tar:

[0021] Pour the coal tar to be dehydrated into the dehydration tank. Then, heat the coal tar by turning on the heating resistance wire on the side wall of the dehydration tank. When heating the coal tar, turn on the motor to drive the rotating rod to rotate. The rotating rod drives the sleeve to rotate and synchronously drives the stirring blades to stir the coal tar in the dehydration tank, so that the coal tar can be dehydrated more evenly when heated. The steam generated during the heating of the coal tar is adsorbed by the adsorption plate, then condensed into water droplets and finally dripped into the collection box through the drainage groove for collection;

[0022] S2: Collection of hot gas:

[0023] A large amount of hot gas generated during the heating and dehydration of coal tar is discharged through the exhaust holes in multiple exhaust components. At this time, the flue gas emissions in the exhaust components respectively drive the corresponding rotating drums to rotate. When the rotating drums rotate, the fitting cylinders rotate synchronously. When the fitting cylinders rotate, they push the contact frame so that the smoke collecting groove in the middle of the contact frame is always in contact with one of the fitting cylinders, so that the flue gas is discharged into the heat collecting box through the smoke collecting groove. The heat collecting box stores cold water, and the hot gas transmitted in the heat collecting box is recycled through an external pipeline for heat energy;

[0024] S3: Water vapor wiping:

[0025] When the flue gas emissions respectively drive the corresponding rotating drums to rotate, the rotating drums drive the driving wheels to rotate. The rotations of multiple driving wheels respectively drive the two side rack plates to repeatedly approach and move away from each other. When the two side rack plates move, they drive the wiping plate to wipe the water vapor on the air permeable plate, preventing the water vapor from accumulating for a long time and dripping onto the coal tar being heated and dehydrated through the air permeable plate.

[0026] Advantages of the present invention:

[0027] 1. By setting a stirring component on one side of the dehydration tank, the present invention is used to stir the coal tar during heating and dehydration, making the coal tar flow slowly to improve the dehydration efficiency and not damage the internal molecules of the coal tar, avoiding the change of internal molecules caused by violent stirring during the heating and dehydration of the coal tar.

[0028] 2. By setting grooves and adsorption plates, the grooves on both sides are connected by pipelines, and the steam water accumulated at the other groove flows uniformly into the collection box through the drainage groove for collection. The multiple grid groups on the adsorption plate facilitate the aggregation of water condensate generated by the steam, preventing the steam water from flowing back into the coal tar being heated and dehydrated after condensation.

[0029] 3. By setting a smoke exhaust unit, while discharging the flue gas in the dehydration tank into the heat collecting box, the present invention can also block most of the pungent flue gas generated during the high-temperature dehydration of the coal tar, reducing the leakage of pungent gases.

[0030] 4. By setting a rotating rod, the rotating rod is a detachable structure, facilitating the cleaning of structures such as the stirring blades on the upper part of the rotating rod after the dehydration operation of the coal tar is completed.

[0031] 5. By setting a rotating drum, the rotation of the rotating drum drives the driving wheel to rotate. When the driving wheel rotates, it drives the two side rack plates to approach or move away from each other, so that the wiping plate wipes the water vapor on the air permeable plate, preventing the water vapor from condensing and dripping into the dehydration tank. Description of the drawings

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings;

[0033] Figure 1 is a schematic front view structure of the present invention;

[0034] Figure 2 is a schematic internal view structure of the present invention;

[0035] Figure 3 is a schematic front sectional view structure of the dehydration tank of the present invention;

[0036] Figure 4 is a schematic internal view structure of the dehydration tank of the present invention;

[0037] Figure 5 is the present invention Figure 4 is an enlarged schematic view of part A of the present invention;

[0038] Figure 6 is a schematic view of the adsorption plate structure of the present invention;

[0039] Figure 7 is a schematic view of the collection box structure of the present invention;

[0040] Figure 8 is a schematic view of the smoke exhaust unit structure of the present invention;

[0041] Figure 9 is a schematic view of the cylindrical structure of the present invention;

[0042] Figure 10 is a schematic view of the rotating rod and sleeve structure of the present invention;

[0043] Figure 11 is a schematic front sectional view of the rotating rod and sleeve of the present invention;

[0044] Figure 12 is a schematic view of the rectangular box and moving part structure of the present invention;

[0045] Figure 13 is a schematic view of the extrusion unit structure of the present invention;

[0046] Figure 14 is a schematic side sectional view of the extrusion unit of the present invention.

[0047] The reference numerals in the drawings are as follows:

[0048] 1. Bottom plate; 2. Dewatering tank; 22. Groove; 23. Drainage groove; 24. T-shaped groove; 25. Collection box; 26. Adsorption plate; 27. Partition board; 28. Moving plate; 29. Lifting rod; 210. Placing groove; 2101. Ventilation plate; 3. Middle box; 4. Heat collection box; 201. Cylinder; 202. Rotating rod; 203. Side groove; 204. Block; 205. Locking groove; 206. Rotating bar; 207. Extrusion block; 208. Sleeve; 209. Locking rod; 2010. Stirring blade; 211. Moving groove; 212. Moving block; 213. Connecting plate; 214. Screw; 215. Scraper; 216. Driven wedge block; 217. Extrusion rod; 218. Driving wedge block; 5. Smoke exhaust unit; 51. Exhaust part; 52. Exhaust hole; 53. Rotating cylinder; 54. Fitting cylinder; 55. Rectangular box; 56. Guide groove; 57. Return spring; 58. Moving part; 59. Connecting block; 510. Contact frame; 511. Smoke collection groove; 61. Driving wheel; 62. Rack plate; 63. Connecting frame; 64. Hydraulic rod; 65. Wiping plate; 71. Fixing hole; 72. Fixing rod; 73. C-shaped frame; 74. Flipping shaft; 75. Triangular hopper; 76. Circular plate; 77. Electric push rod; 78. Extrusion plate; 79. Collection hopper. Detailed implementation manners

[0049] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0050] As Figure 1 shown, a dehydration device for coal tar production includes a bottom plate 1. One side of the upper surface of the bottom plate 1 is fixedly installed with a dewatering tank 2. There is a middle box 3 on one side of the dewatering tank 2. The middle box 3 is fixedly connected to the bottom plate 1 and the middle box 3 is used for discharging the flue gas generated by the dewatering tank 2.

[0051] As a technical optimization scheme of the present invention, there is a heat collection box 4 on the side of the middle box 3 away from the dewatering tank 2. The heat collection box 4 is fixedly connected to the bottom plate 1. A stirring assembly is fixedly installed on one side of the inner cavity of the dewatering tank 2. The stirring assembly is used for stirring coal tar during heating. By arranging the stirring assembly on one side of the dewatering tank 2, it is used to stir the coal tar during heating and dehydration, so that the coal tar slowly flows, improving the dehydration efficiency and not damaging the internal molecules of the coal tar, and avoiding the change of the internal molecules of the coal tar due to violent stirring during heating and dehydration.

[0052] As a technical optimization solution of the present invention, cleaning components are provided on both side walls in the middle of the inner cavity of the dehydration tank 2, and the cleaning components are used to scrape and clean the bottom of the dehydration tank 2 after the coal tar is dehydrated.

[0053] As Figure 2 As shown in the figure, as a technical optimization solution of the present invention, a smoke exhaust unit 5 is fixedly installed in the middle of the inner cavity of the middle box 3. The smoke exhaust unit 5 is used to discharge the flue gas generated when the coal tar in the dehydration tank 2 is heated into the heat collection box 4 for heat energy recovery. Since the smoke exhaust unit 5 is located in the middle box 3, while the smoke exhaust unit 5 discharges the flue gas in the dehydration tank 2 into the heat collection box 4, it can also block most of the pungent flue gas generated during the high-temperature dehydration of the coal tar, reducing the leakage of pungent gases.

[0054] As a technical optimization solution of the present invention, a wiping unit is provided on the upper surface of the middle box 3. The wiping unit extends to the upper part of the dehydration tank 2 and is used to wipe the water vapor on the upper part of the dehydration tank 2 during the heating and dehydration of the coal tar, avoiding the water vapor from condensing and dripping into the inside of the dehydration tank 2. Squeezing units are detachably installed on both sides of the upper surface of the dehydration tank 2, and the squeezing units are used to squeeze the water adsorbed on the wiping unit after a certain amount of water is adsorbed, so that the wiping unit can be used repeatedly without replacement.

[0055] As a technical optimization solution of the present invention, grooves 22 are opened on both sides of the inner cavity of the dehydration tank 2, and the two grooves 22 on both sides are connected by a pipeline. A drainage groove 23 is provided at the lower part of one side of the groove 22, and the drainage groove 23 is opened on the dehydration tank 2. A T-shaped groove 24 is provided at the lower part of the drainage groove 23, and a collection box 25 is slidably installed in the T-shaped groove 24. Adsorption plates 26 are detachably installed in the two grooves 22 on both sides. The adsorption plates 26 are composed of multiple grids. Through the connection of the two grooves 22 on both sides by a pipeline, the steam water gathered at the other groove 22 flows into the collection box 25 through the drainage groove 23 for collection. The multiple grids on the adsorption plate 26 facilitate the aggregation of the water condensate generated by the steam, avoiding the steam water from flowing back into the coal tar that is being heated and dehydrated after condensation.

[0056] As a technical optimization solution of the present invention, a partition plate 27 is fixedly installed on one side of the inner cavity of the dehydration tank 2. A moving plate 28 is slidably installed in the middle of the partition plate 27. One side of the top of the partition plate 27 is threadedly rotated with a lifting rod 29, and the bottom of the lifting rod 29 is rotatably connected to the partition plate 27. Placing grooves 210 are opened on both sides of the upper top of the dehydration tank 2, and breathable plates 2101 are placed in the two placing grooves 210 on both sides. By rotating the lifting rod 29, the moving plate 28 is used to move on the partition plate 27. By adjusting the position of the moving plate 28, the flow rate of the coal tar flowing to one side of the cylinder 201 can be controlled.

[0057] As Figure 9As shown in the figure, as a technical optimization solution of the present invention, the stirring assembly includes a cylinder 201. A motor is fixedly installed at the bottom of the inner cavity of the cylinder 201. The output end of the motor is fixedly installed with a rotating rod 202. The rotating rod 202 is a two-section detachable structure. The rotating rod 202 is circumferentially provided with a side groove 203 along its axis. A clamping block 204 is arranged in the side groove 203. Springs are arranged on both the upper and lower sides of the clamping block 204. Since the rotating rod 202 is a detachable structure, it is convenient to clean structures such as the stirring blade 2010 on the upper part of the rotating rod 202 after completing the dehydration operation of coal tar.

[0058] As a technical optimization solution of the present invention, the spring is connected to the rotating rod 202 on the side away from the clamping block 204. A locking groove 205 is opened at the top of the clamping block 204. A rotating rod 206 is rotatably installed in the middle of the inner cavity of the rotating rod 202. An extrusion block 207 is fixedly installed on the outer side of the rotating rod 206 along its axis circumferentially. A sleeve 208 is sleeved on the outer side of the rotating rod 202. A clamping rod 209 is slidably installed at the top of the sleeve 208. A stirring blade 2010 is fixedly installed on the outer side of the sleeve 208 along its axis circumferentially. By reversely rotating the rotating rod 206, the rotating rod 206 drives the extrusion block 207 to push the clamping block 204 into the notch on the inner cavity side wall of the sleeve 208, and then the clamping rod 209 is moved down to the locking groove 205 on the upper side of the clamping block 204 to complete the disassembly and assembly of the rotating rod 202 and the sleeve 208, so as to facilitate the cleaning of the rotating rod 202 and the sleeve 208.

[0059] As a technical optimization solution of the present invention, the cleaning assembly includes a moving groove 211. A moving block 212 is slidably installed in the moving groove 211 through an electric slider. A connecting plate 213 is fixedly installed on one side of the moving block 212. The connecting plate 213 is L-shaped. A screw rod 214 is rotatably installed at the top of the connecting plate 213 in a threaded manner. The bottom end of the screw rod 214 is rotatably installed with a spacer plate. By turning on the electric slider, the moving block 212 and the connecting plate 213 can be driven to move reciprocally. By rotating the screw rod 214, the height of the spacer plate can be adjusted.

[0060] As Figure 5As shown in the figure, as a technical optimization solution of the present invention, the spacer is slidably connected to one side of the connecting plate 213. A scraper 215 is hinged to the lower surface of the spacer. A driven wedge block 216 is fixedly installed on one side of the scraper 215. An extrusion rod 217 is provided on one side of the screw 214. The extrusion rod 217 is in threaded rotation connection with the connecting plate 213. A driving wedge block 218 is rotatably installed at the bottom end of the extrusion rod 217. When the extrusion rod 217 is rotated forward and the extrusion rod 217 moves downward, it drives the driving wedge block 218 to move downward. When the driving wedge block 218 moves downward, it pushes the bottom end of the driven wedge block 216 to turn over, so as to adjust the angle of the scraper 215, facilitating the scraper 215 to scrape the residual coal tar at the bottom and side walls of the dewatering tank 2. When the extrusion rod 217 is rotated forward and the extrusion rod 217 drives the driving wedge block 218 to rise to cancel the extrusion of the driven wedge block 216, the scraper 215 is reset under the action of the torsion spring.

[0061] As a technical optimization solution of the present invention, the smoke exhaust unit 5 includes an exhaust member 51. An exhaust hole 52 is provided in the middle of the inner cavity of the exhaust member 51. The exhaust hole 52 communicates with the side wall of the dewatering tank 2. A rotating cylinder 53 is provided on one side of the exhaust member 51. The rotating cylinder 53 penetrates through the top of the middle box 3. The rotating cylinder 53 is rotatably connected to the middle box 3.

[0062] As a technical optimization solution of the present invention, a fitting cylinder 54 is fixedly installed on the outer periphery of the rotating cylinder 53. There are a plurality of fitting cylinders 54. The fitting cylinder 54 communicates with the rotating cylinder 53. A rectangular box 55 is provided on the side of the rotating cylinder 53 away from the dewatering tank 2. The rectangular box 55 is fixedly connected to the middle box 3.

[0063] As a technical optimization solution of the present invention, the middle part of the rectangular box 55 is a hollow structure. Guide grooves 56 are opened on both sides of the rectangular box 55. A moving member 58 is slidably installed in the rectangular box 55. A connecting block 59 is slidably installed in the guide groove 56. The connecting block 59 is fixedly connected to the moving member 58.

[0064] As Figure 12 shown, as a technical optimization solution of the present invention, a return spring 57 is commonly connected between the connecting block 59 and the guide groove 56. A contact frame 510 is fixedly installed on one side of the moving member 58. Both ends of the contact frame 510 are arc-shaped. Smoke collecting grooves 511 are respectively opened through the middle parts of the contact frame 510 and the moving member 58. When the rotating cylinder 53 is driven to rotate by the flue gas, the fitting cylinder 54 rotates synchronously when the rotating cylinder 53 rotates. When the fitting cylinder 54 rotates, it pushes the contact frame 510 so that the smoke collecting groove 511 in the middle of the contact frame 510 is always in contact with one of the fitting cylinders 54, so that the flue gas is discharged into the heat collecting box 4 through the smoke collecting groove 511.

[0065] As a technical optimization solution of the present invention, the wiping unit includes driving wheels 61. There are multiple driving wheels 61, and the driving wheels 61 are fixedly connected to the rotating cylinder 53. Rack plates 62 are commonly engaged on both sides of the multiple driving wheels 61. The rack plates 62 are slidably connected to the middle box 3. Connecting frames 63 are fixedly installed on the tops of the rack plates 62 on both sides. A hydraulic rod 64 is fixedly installed on the lower surface of the connecting frame 63. A wiping plate 65 is fixedly installed at the bottom of the hydraulic rod 64. The wiping end of the wiping plate 65 is made of sponge material. The rotating cylinder 53 is driven to rotate by the flue gas, thereby driving the driving wheels 61 to rotate. When the driving wheels 61 rotate, the rack plates 62 on both sides are driven to approach or move away from each other, so that the wiping plate 65 wipes the water vapor on the air-permeable plate 2102, preventing the water vapor from condensing and dripping into the dehydration tank 2.

[0066] As a technical optimization solution of the present invention, the extrusion unit includes fixing holes 71. The fixing holes 71 are opened at the four corners of the upper surface of the dehydration tank 2. Fixing rods 72 are placed in the fixing holes 71. A U-shaped frame 73 is fixedly installed between the two fixing rods 72 on each side. Rotating shafts 74 are rotatably installed on both sides inside the U-shaped frame 73. A triangular hopper 75 is fixedly installed between the rotating shafts 74 on both sides. A circular plate 76 is fixedly installed in the middle of the rotating shaft 74. Electric push rods 77 are hinged on both sides of the U-shaped frame 73. One end of the electric push rod 77 away from the U-shaped frame 73 is hinged to the circular plate 76. An extrusion plate 78 is fixedly installed on one side of the triangular hopper 75. A collecting hopper 79 is detachably installed in the middle of the lower surface of the U-shaped frame 73. When the extrusion unit extrudes the water on the wiping plate 65, the electric push rod 77 is turned on and pushed forward, so that the triangular hopper 75 is turned until the extrusion plate 78 in the triangular hopper 75 faces the wiping plate 65. When the wiping plate 65 approaches the extrusion plate 78 until they are in contact, the water on the wiping plate 65 is extruded into the collecting hopper 79.

[0067] As Figures 1 to 14 shown, as a technical optimization solution of the present invention, another object of the present invention is to provide a use method of a dehydration device for coal tar production, including the following steps:

[0068] S1: Coal tar heating:

[0069] The coal tar to be dehydrated is put into the dehydration tank 2, and then the coal tar is heated by turning on the heating resistance wire on the side wall of the dehydration tank 2. When the coal tar is heated, the motor is turned on to drive the rotating rod 202 to rotate. The rotating rod 202 drives the sleeve 208 to rotate and synchronously drives the stirring blades 2010 to stir the coal tar in the dehydration tank 2, so that the coal tar can be dehydrated more evenly when heated. The steam generated when the coal tar is heated is adsorbed by the adsorption plate 26, then condensed into water droplets and finally dripped into the collection box 25 through the drain groove 23 for collection;

[0070] S2: Hot gas collection:

[0071] A large amount of hot gas generated during the heating and dehydration of coal tar is discharged through the exhaust holes 52 in multiple exhaust members 51. At this time, the flue gas emissions in the exhaust members 51 respectively drive the corresponding rotating drums 53 to rotate. When the rotating drums 53 rotate, the fitting drums 54 rotate synchronously. When the fitting drums 54 rotate, they push the contact frame 510, so that the smoke collecting groove 511 in the middle of the contact frame 510 always fits with one of the fitting drums 54, so that the flue gas is discharged into the heat collecting box 4 through the smoke collecting groove 511. The heat collecting box 4 stores cold water, and the hot gas transmitted in the heat collecting box 4 is recycled through an external pipeline for heat energy;

[0072] S3: Water vapor wiping:

[0073] When the flue gas emissions respectively drive the corresponding rotating drums 53 to rotate, the rotating drums 53 drive the driving wheels 61 to rotate. The rotations of the multiple driving wheels 61 respectively drive the two side rack plates 62 to repeatedly approach and move away from each other. When the two side rack plates 62 move, they drive the wiping plate 65 to wipe the water vapor on the air permeable plate 2101, preventing the water vapor from accumulating for a long time and dripping onto the coal tar being heated and dehydrated through the air permeable plate 2101.

[0074] When the present invention is in use, first pour the coal tar to be dehydrated into the dehydration tank 2, and then heat the coal tar by turning on the heating resistance wire on the side wall of the dehydration tank 2. When the coal tar is heated, turn on the motor to drive the rotating rod 202 to rotate. The rotating rod 202 drives the sleeve 208 to rotate and synchronously drives the stirring blades 2010 to stir the coal tar in the dehydration tank 2, so that the coal tar can be dehydrated more evenly when heated and dehydrated;

[0075] The stirring blades 2010 are arranged on one side of the dehydration tank 2 and are used to stir the coal tar when it is heated and dehydrated, so that the coal tar slowly flows to improve the dehydration efficiency and at the same time does not damage the molecules inside the coal tar, avoiding the change of the molecules inside the coal tar caused by violent stirring during heating and dehydration. The steam generated when the coal tar is heated is adsorbed by the adsorption plate 26, and then condensed into water droplets and finally dripped into the collection box 25 through the drainage groove 23 for collection;

[0076] Subsequently, a large amount of hot gas generated during the heating and dehydration of coal tar is discharged through the exhaust holes 52 in multiple exhaust members 51. At this time, the flue gas emissions in the exhaust members 51 respectively drive the corresponding rotating drums 53 to rotate. When the rotating drums 53 rotate, the fitting drums 54 rotate synchronously. When the fitting drums 54 rotate, they push the contact frame 510, so that the smoke collecting groove 511 in the middle of the contact frame 510 always fits with one of the fitting drums 54, so that the flue gas is discharged into the heat collecting box 4 through the smoke collecting groove 511. The heat collecting box 4 stores cold water, and the hot gas transmitted in the heat collecting box 4 is recycled through an external pipeline for heat energy;

[0077] While the rotary drum 53 rotates, the rotary drum 53 drives the drive wheel 61 to rotate. The rotations of multiple drive wheels 61 respectively drive the two rack plates 62 on both sides to repeatedly approach and move away from each other. When the two rack plates 62 move, they drive the wiping plate 65 to wipe the water vapor on the air-permeable plate 2101, preventing the water vapor from aggregating for a long time and dripping onto the coal tar being heated and dehydrated through the air-permeable plate 2101;

[0078] Finally, the electric push rod 77 is activated to push forward, causing the triangular hopper 75 to flip until the pressing plate 78 in the triangular hopper 75 faces the wiping plate 65. When the wiping plate 65 approaches the pressing plate 78 until they are in contact, the water on the wiping plate 65 is squeezed into the collection hopper 79.

[0079] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A dehydration device for coal tar production, comprising a bottom plate (1), characterized in that: On one side of the upper surface of the bottom plate (1), a dehydration tank (2) is fixedly installed. On one side of the dehydration tank (2), there is a middle-position tank (3). The middle-position tank (3) is fixedly connected to the bottom plate (1) and is used for discharging the flue gas generated by the dehydration tank (2). On the side of the middle-position tank (3) away from the dehydration tank (2), there is a heat collection tank (4). The heat collection tank (4) is fixedly connected to the bottom plate (1). On one side of the inner cavity of the dehydration tank (2), a stirring assembly is fixedly installed. The stirring assembly is used for stirring the coal tar during heating. On both sides of the middle part of the inner cavity of the dehydration tank (2), there are cleaning assemblies. The cleaning assemblies are used for scraping and cleaning the bottom of the dehydration tank (2) after the coal tar is dehydrated; In the middle of the inner cavity of the middle-position tank (3), a smoke exhaust unit (5) is fixedly installed. The smoke exhaust unit (5) is used for discharging the flue gas generated when the coal tar in the dehydration tank (2) is heated into the heat collection tank (4) for heat energy recovery. On the upper surface of the middle-position tank (3), there is a wiping unit. The wiping unit extends to the upper part of the dehydration tank (2). The wiping unit is used for wiping the water vapor on the upper part of the dehydration tank (2) when the coal tar is heated and dehydrated, so as to prevent the water vapor from condensing and dripping into the inside of the dehydration tank (2). On both sides of the upper surface of the dehydration tank (2), an extrusion unit is detachably installed. The extrusion unit is used for extruding the wiping unit; On both sides of the inner cavity of the dehydration tank (2), grooves (22) are opened. The two grooves (22) on both sides are communicated through a pipeline. At the lower part of one side of the groove (22), there is a drainage groove (23). The drainage groove (23) is opened on the dehydration tank (2). At the lower part of the drainage groove (23), there is a T-shaped groove (24). A collection box (25) is slidably installed in the T-shaped groove (24). Adsorption plates (26) are detachably installed in the two grooves (22) on both sides. The adsorption plates (26) are composed of multiple grids. On one side of the inner cavity of the dehydration tank (2), a partition plate (27) is fixedly installed. A moving plate (28) is slidably installed in the middle of the partition plate (27). On one side of the top of the partition plate (27), a lifting rod (29) is rotationally installed by threading. The bottom of the lifting rod (29) is rotatably connected to the partition plate (27). On both sides of the top of the upper part of the dehydration tank (2), placing grooves (210) are opened. Permeable plates (2101) are placed in the two placing grooves (210) on both sides; The extrusion unit includes fixing holes (71). The fixing holes (71) are opened at the four corners of the upper surface of the dehydration tank (2). Fixing rods (72) are placed in the fixing holes (71). Between the two fixing rods (72) on each side, a U-shaped frame (73) is fixedly installed. On both sides of the inner side of the U-shaped frame (73), turning shafts (74) are rotatably installed. Between the two turning shafts (74) on both sides, a triangular hopper (75) is fixedly installed. In the middle of the turning shaft (74), a circular plate (76) is fixedly installed. On both sides of the U-shaped frame (73), electric push rods (77) are hinged. The end of the electric push rod (77) away from the U-shaped frame (73) is hinged to the circular plate (76). On one side of the triangular hopper (75), an extrusion plate (78) is fixedly installed. In the middle of the lower surface of the U-shaped frame (73), a collection hopper (79) is detachably installed.

2. The dehydration device for coal tar production according to claim 1, wherein: The stirring assembly includes a cylinder (201). A motor is fixedly installed at the bottom of the inner cavity of the cylinder (201). A rotating rod (202) is fixedly installed at the output end of the motor. The rotating rod (202) has a two-section detachable structure. Side grooves (203) are circumferentially formed along the axis of the rotating rod (202). A clamping block (204) is arranged in the side groove (203). Springs are arranged on both the upper and lower sides of the clamping block (204). One side of the spring away from the clamping block (204) is connected to the rotating rod (202). A locking groove (205) is formed at the top of the clamping block (204). A rotating rod (206) is rotatably installed in the middle of the inner cavity of the rotating rod (202). Extrusion blocks (207) are fixedly installed on the outer side of the rotating rod (206) along the axis circumferentially. A sleeve (208) is sleeved on the outer side of the rotating rod (202). A clamping rod (209) is slidably installed at the top of the sleeve (208). Stirring blades (2010) are fixedly installed on the outer side of the sleeve (208) along the axis circumferentially.

3. The dehydration device for coal tar production according to claim 1, characterized in that: The cleaning assembly includes a moving groove (211). A moving block (212) is slidably installed in the moving groove (211) through an electric slider. A connecting plate (213) is fixedly installed on one side of the moving block (212). The connecting plate (213) is L-shaped. A screw rod (214) is rotatably installed at the top of the connecting plate (213) by threading. The bottom end of the screw rod (214) is rotatably installed with a spacer plate. The spacer plate is slidably connected to one side of the connecting plate (213). A scraping plate (215) is hinged to the lower surface of the spacer plate. A driven wedge block (216) is fixedly installed on one side of the scraping plate (215). An extrusion rod (217) is arranged on one side of the screw rod (214). The extrusion rod (217) is rotatably installed at the connecting plate (213) by threading. A driving wedge block (218) is rotatably installed at the bottom end of the extrusion rod (217).

4. The dehydration device for coal tar production according to claim 2, characterized in that: The exhaust unit (5) includes an exhaust member (51). An exhaust hole (52) is arranged in the middle of the inner cavity of the exhaust member (51). The exhaust hole (52) communicates with the side wall of the dehydration tank (2). A rotating cylinder (53) is arranged on one side of the exhaust member (51). The rotating cylinder (53) penetrates through the top of the middle box (3). The rotating cylinder (53) is rotatably connected to the middle box (3). A fitting cylinder (54) is fixedly installed on the outer periphery of the rotating cylinder (53). There are multiple fitting cylinders (54). The fitting cylinder (54) is communicated with the rotating cylinder (53). A rectangular box (55) is arranged on the side of the rotating cylinder (53) away from the dehydration tank (2). The rectangular box (55) is fixedly connected to the middle box (3).

5. The dehydration device for coal tar production according to claim 4, characterized in that: The middle part of the rectangular box (55) is a hollow structure. Guide grooves (56) are formed on both sides of the rectangular box (55). A moving member (58) is slidably installed in the rectangular box (55). A connecting block (59) is slidably installed in the guide groove (56). The connecting block (59) is fixedly connected to the moving member (58). A return spring (57) is jointly connected between the connecting block (59) and the guide groove (56). A contact frame (510) is fixedly installed on one side of the moving member (58). Both ends of the contact frame (510) are arc-shaped. Smoke collecting grooves (511) are formed through the middle parts of both the contact frame (510) and the moving member (58).

6. The dehydration device for coal tar production according to claim 5, wherein: The wiping unit includes driving wheels (61). There are multiple driving wheels (61), and the driving wheels (61) are fixedly connected to the rotating cylinder (53). Rack plates (62) are commonly engaged on both sides of the multiple driving wheels (61). The rack plates (62) are slidably connected to the middle box (3). Connecting frames (63) are fixedly installed on the tops of the rack plates (62) on both sides. Hydraulic rods (64) are fixedly installed on the lower surfaces of the connecting frames (63). Wiping plates (65) are fixedly installed at the bottoms of the hydraulic rods (64). The wiping ends of the wiping plates (65) are made of sponge material.

7. A method for using the dehydration device for coal tar production as described in claim 6, characterized in that: The usage method includes the following steps: S1: Heating of coal tar: Pour the coal tar to be dehydrated into the dehydration tank (2). Then, heat the coal tar by turning on the heating resistance wire on the side wall of the dehydration tank (2). When heating the coal tar, turn on the motor to drive the rotating rod (202) to rotate. The rotating rod (202) drives the sleeve (208) to rotate and synchronously drives the stirring blades (2010) to stir the coal tar in the dehydration tank (2), so that the coal tar can be dehydrated more evenly when heated. The steam generated during the heating of the coal tar is adsorbed by the adsorption plate (26), and then condensed into water droplets and finally dripped into the collection box (25) through the drainage groove (23) for collection; S2: Collection of hot gas: A large amount of hot gas generated during the heating and dehydration of coal tar is discharged through the exhaust holes (52) in the multiple exhaust parts (51). At this time, the flue gas emissions in the exhaust parts (51) respectively drive the corresponding rotating cylinders (53) to rotate. When the rotating cylinders (53) rotate, the fitting cylinders (54) rotate synchronously. When the fitting cylinders (54) rotate, they push the contact frame (510) so that the smoke collecting groove (511) in the middle of the contact frame (510) is always in contact with one of the fitting cylinders (54), so that the flue gas is discharged into the heat collecting box (4) through the smoke collecting groove (511). The heat collecting box (4) stores cold water, and the hot gas transmitted in the heat collecting box (4) is recycled through an external pipeline for heat energy; S3: Wiping of water vapor: When the flue gas emissions respectively drive the corresponding rotating cylinders (53) to rotate, the rotating cylinders (53) drive the driving wheels (61) to rotate. The multiple driving wheels (61) with the same rotation direction respectively drive the rack plates (62) on both sides to repeatedly approach and move away from each other. When the rack plates (62) on both sides move, they drive the wiping plates (65) to wipe the water vapor on the air permeable plate (2101), preventing the water vapor from aggregating for a long time and dripping onto the coal tar being heated and dehydrated through the air permeable plate (2101).

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