Distillation device for treating high-concentration methanol wastewater

Abstract

The utility model discloses a distillation device for high-concentration methanol wastewater treatment, which relates to the technical field of wastewater treatment and comprises a shell, a first conical distillation plate and a second conical distillation plate, the first conical distillation plate is fixedly arranged on the inner upper side of the shell, and the second conical distillation plate is arranged on the lower side of the first conical distillation plate. The middle of the second conical distillation plate is fixedly sleeved with a supporting rod, the lower end of the supporting rod is fixedly connected with the inner wall of the shell, a first conical heating plate is fixedly arranged on the lower surface of the first conical distillation plate, and a second conical heating plate is fixedly arranged on the lower surface of the second conical distillation plate; a water inlet pipe is fixedly arranged on the upper surface of the shell, a rotating pipe is rotationally arranged on the inner wall of the upper end of the shell, and the upper end of the rotating pipe is rotationally connected with the water inlet pipe. The surface of the distillation plate can be automatically cleaned, and impurities in wastewater are prevented from accumulating on the surface of the distillation plate to influence the heat-conducting property of the distillation plate as much as possible.

Description

Technical Field

[0001] The utility model relates to the technical field of wastewater treatment, in particular to a distillation device for treating high-concentration methanol wastewater. Background Technique

[0002] Methanol wastewater belongs to high-concentration organic wastewater, with a strong pungent odor. Its main components are methanol, ethanol, higher alcohols and aldehydes. When the wastewater cools, it precipitates as white wax-like substances. At present, the wastewater discharged from the bottom of the main methanol rectification tower in China generally contains about 1% methanol, and some reach 2%. This not only causes the loss of methanol but also causes environmental pollution. For the treatment of high-concentration methanol wastewater, the existing devices have complex structures, numerous technological processes, and very low efficiency.

[0003] Among them, the distillation device for treating high-concentration methanol wastewater disclosed in the publication number CN216584610U includes a box body. A bracket is fixedly installed at the upper end of the box body. A pretreatment box is fixedly installed at the upper end of the bracket. A water inlet pipe is communicated with one side of the pretreatment box, and a water outlet pipe is communicated with the other side of the pretreatment box. A hollow pipe is rotatably inserted into the upper end of the box body through a bearing. A horizontal pipe is fixedly connected to the lower end of the hollow pipe. The horizontal pipe is communicated with the hollow pipe. A plurality of spray heads are communicated with the lower side of the horizontal pipe. The plurality of spray heads are arranged at equal intervals. A heating mechanism is arranged in the box body. A heating wire is fixedly installed in the pretreatment box. A filter plate is detachably installed in the pretreatment box. Both the heating wire and the filter plate are located between the water inlet pipe and the water outlet pipe. There are still defects in this technical solution:

[0004] During the use of the distillation plate in this technical solution, impurities in the wastewater will continuously accumulate on its surface. Over time, the heat conduction performance of the distillation plate will be greatly reduced, thereby reducing the distillation effect of the device on the wastewater. Content of the Utility Model

[0005] In view of the problems existing in the above-mentioned existing distillation device for treating high-concentration methanol wastewater, the present utility model is proposed.

[0006] Therefore, the purpose of the present utility model is to provide a distillation device for treating high-concentration methanol wastewater, which solves the problem that in the existing distillation device for treating high-concentration methanol wastewater, during the use of the distillation plate, impurities in the wastewater will continuously accumulate on its surface. Over time, the heat conduction performance of the distillation plate will be greatly reduced, thereby reducing the distillation effect of the device on the wastewater.

[0007] In order to achieve the above purpose, the present utility model provides the following technical solutions:

[0008] A distillation device for treating high-concentration methanol wastewater, comprising a housing, a first conical distillation plate and a second conical distillation plate. The first conical distillation plate is fixedly arranged on the upper side inside the housing. The second conical distillation plate is arranged below the first conical distillation plate. A support rod is fixedly sleeved in the middle of the second conical distillation plate. The lower end of the support rod is fixedly connected to the inner wall of the housing. A first conical heating plate is fixedly arranged on the lower surface of the first conical distillation plate. A second conical heating plate is fixedly arranged on the lower surface of the second conical distillation plate. A water inlet pipe is fixedly arranged on the upper surface of the housing. A rotating pipe is rotatably arranged on the upper end inner wall of the housing. The upper end of the rotating pipe is rotatably connected to the water inlet pipe. A first transmission mechanism for driving the rotating pipe to rotate is arranged at the lower end of the rotating pipe.

[0009] Scrapers are arranged in contact with the upper surfaces of the first conical distillation plate and the second conical distillation plate. A rotating rod is rotatably arranged at the upper end of the support rod. One ends of the two scrapers are fixedly connected to the rotating rod. A cross rod is rotatably arranged on one side inner wall of the housing. A first bevel gear is fixedly sleeved at one end of the cross rod. A second bevel gear is fixedly sleeved at the middle end of the rotating rod. The first bevel gear is meshed with the second bevel gear. A second transmission mechanism for driving the cross rod to rotate is arranged inside the water inlet pipe.

[0010] Preferably, the first transmission mechanism includes two L-shaped pipes. The lower end of the rotating pipe is sealed. Installation holes are opened on both sides of the lower end of the rotating pipe. The two L-shaped pipes are respectively fixedly installed inside the corresponding installation holes. The other ends of the two L-shaped pipes are in opposite directions.

[0011] Preferably, the second transmission mechanism includes an impeller and a transmission rod. The transmission rod is rotatably arranged inside the water inlet pipe. The impeller is fixedly sleeved on the rod wall of the transmission rod. One end of the transmission rod extends to the outside of the water inlet pipe. A first transmission wheel is fixedly sleeved at one end of the transmission rod. One end of the cross rod extends to the outside of the housing and is fixedly sleeved with a second transmission wheel. The first transmission wheel and the second transmission wheel are connected by a transmission belt.

[0012] Preferably, a water outlet pipe with a valve is fixedly arranged on one side of the lower end of the housing.

[0013] Preferably, an exhaust pipe is fixedly arranged on one side of the upper end of the housing.

[0014] Preferably, a support frame is fixedly arranged on the top of the housing. The upper end of the water inlet pipe is fixedly connected to the support frame.

[0015] Preferably, one end of the transmission rod is rotatably connected to the inner wall of the water inlet pipe through a sealing bearing.

[0016] Preferably, one end of the cross bar is rotatably connected to the inner wall of the housing through a second sealed bearing.

[0017] Preferably, the diameter ratio of the first driving wheel to the second driving wheel is 1:10.

[0018] In the above technical solution, the technical effects and advantages provided by the present utility model are as follows:

[0019] 1. In the present utility model, wastewater enters the rotating pipe from the water inlet pipe and then sprays out from the two L-shaped pipes. Since the outlet directions of the two L-shaped pipes are opposite, under the reaction force, the rotating pipe will be pushed to rotate, that is, the wastewater can be evenly sprinkled on the first conical distillation plate and then flow to the second conical distillation plate, so as to carry out efficient and uniform wastewater distillation work.

[0020] 2. In the present utility model, when the wastewater passes through the water inlet pipe, it will drive the impeller to rotate. The impeller drives the transmission rod to rotate, and then drives the first driving wheel to rotate. The first driving wheel is driven by a transmission belt to make the second driving wheel rotate. The second driving wheel drives the cross bar to rotate, and the cross bar drives the rotating rod to rotate through the first bevel gear and the second bevel gear, that is, the two scrapers rotate, so as to scrape and clean the first conical distillation plate and the second conical distillation plate, and can effectively prevent impurities in the wastewater from accumulating on the surface of the distillation plate and affecting the heat conduction performance of the distillation plate. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those of ordinary skill in the art, other drawings can also be obtained according to these drawings.

[0022] Figure 1 It is a schematic structural diagram of a distillation device for treating high-concentration methanol wastewater proposed by the present utility model;

[0023] Figure 2 For Figure 1 a magnified structural diagram of part A in

[0024] Figure 3 For Figure 1 a three-dimensional connection structure diagram of the rotating pipe and the two L-shaped pipes in

[0025] Description of the Reference Numerals in the Drawings:

[0026] 1. Shell; 2. First conical distillation plate; 3. First conical heating plate; 4. Support rod; 5. Second conical distillation plate; 6. Second conical heating plate; 7. Rotating rod; 8. Scraper; 9. Support frame; 10. Water inlet pipe; 11. Rotating pipe; 12. L-shaped pipe; 13. Transmission rod; 14. First transmission wheel; 15. Cross bar; 16. Second transmission wheel; 17. Transmission belt; 18. First bevel gear; 19. Second bevel gear; 20. Water outlet pipe; 21. Impeller; 22. Exhaust pipe. Detailed implementation mode

[0027] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the present utility model will be further introduced in detail below with reference to the accompanying drawings.

[0028] An embodiment of the present utility model discloses a distillation device for treating high-concentration methanol wastewater.

[0029] Embodiment 1

[0030] Referring to Figures 1-3 , a distillation device for treating high-concentration methanol wastewater includes a shell 1, a first conical distillation plate 2 and a second conical distillation plate 5. The first conical distillation plate 2 is fixedly arranged on the upper side inside the shell 1, the second conical distillation plate 5 is arranged below the first conical distillation plate 2, a support rod 4 is fixedly sleeved in the middle of the second conical distillation plate 5, the lower end of the support rod 4 is fixedly connected to the inner wall of the shell 1, a first conical heating plate 3 is fixedly arranged on the lower surface of the first conical distillation plate 2, a second conical heating plate 6 is fixedly arranged on the lower surface of the second conical distillation plate 5, a water inlet pipe 10 is fixedly arranged on the upper surface of the shell 1, a rotating pipe 11 is rotatably arranged on the upper end inner wall of the shell 1, the upper end of the rotating pipe 11 is rotatably connected to the water inlet pipe 10, a water outlet pipe 20 with a valve is fixedly arranged on one side of the lower end of the shell 1, an exhaust pipe 22 is fixedly arranged on one side of the upper end of the shell 1, a support frame 9 is fixedly arranged on the top of the shell 1, and the upper end of the water inlet pipe 10 is fixedly connected to the support frame 9;

[0031] Referring to Figures 1-3 , scraping plates 8 are arranged in contact with the upper surfaces of the first conical distillation plate 2 and the second conical distillation plate 5. A rotating rod 7 is rotatably arranged at the upper end of the support rod 4, and one ends of the two scraping plates 8 are fixedly connected to the rotating rod 7. A cross bar 15 is rotatably arranged on one inner wall of the shell 1, a first bevel gear 18 is fixedly sleeved at one end of the cross bar 15, a second bevel gear 19 is fixedly sleeved at the middle end of the rotating rod 7, the first bevel gear 18 is meshed with the second bevel gear 19, and the first bevel gear 18 and the second bevel gear 19 are meshed.

[0032] Embodiment 2

[0033] Referring to Figures 1-3, a first transmission mechanism for driving the rotation of the rotary pipe 11 is provided at the lower end of the rotary pipe 11. The first transmission mechanism includes two L-shaped pipes 12. The lower end of the rotary pipe 11 is sealed. Installation holes are provided on both sides of the lower end of the rotary pipe 11. The two L-shaped pipes 12 are respectively fixedly installed inside the corresponding installation holes, and the other ends of the two L-shaped pipes 12 are in opposite directions.

[0034] Embodiment III

[0035] Refer to Figures 1-3 , a second transmission mechanism for driving the rotation of the cross bar 15 is provided inside the water inlet pipe 10. The second transmission mechanism includes an impeller 21 and a transmission rod 13. The transmission rod 13 is rotatably arranged inside the water inlet pipe 10. The impeller 21 is fixedly sleeved on the rod wall of the transmission rod 13. One end of the transmission rod 13 extends to the outside of the water inlet pipe 10. A first transmission wheel 14 is fixedly sleeved at one end of the transmission rod 13, and one end of the cross bar 15 extends to the outside of the housing 1 and is fixedly sleeved with a second transmission wheel 16. The first transmission wheel 14 and the second transmission wheel 16 are connected by a transmission belt 17. One end of the transmission rod 13 is rotatably connected to the inner wall of the water inlet pipe 10 through a sealed bearing to improve the sealing performance between the transmission rod 13 and the water inlet pipe 20. One end of the cross bar 15 is rotatably connected to the inner wall of the housing 1 through a second sealed bearing to improve the sealing performance between the cross bar 15 and the housing 1. The diameter ratio of the first transmission wheel 14 and the second transmission wheel 16 is 1:10, so that the first transmission wheel 14 can drive the second transmission wheel 16 to rotate slowly, and then the scraper 8 rotates slowly.

[0036] In the present utility model, during use, the wastewater enters the rotary pipe 11 from the water inlet pipe 10 and then sprays out from the two L-shaped pipes 12. Since the outlet directions of the two L-shaped pipes 12 are opposite, under the reaction force, the rotary pipe 11 will be pushed to rotate, that is, the wastewater can be evenly sprinkled on the first conical distillation plate 2, and then flow to the second conical distillation plate 5, that is, efficient and uniform wastewater distillation work can be carried out. When the wastewater passes through the water inlet pipe 10, it will drive the impeller 21 to rotate. The impeller 21 drives the transmission rod 13 to rotate, and then drives the first transmission wheel 14 to rotate. The first transmission wheel 14 is driven by the transmission belt 17 to make the second transmission wheel 14 rotate. The second transmission wheel 14 drives the cross bar 15 to rotate. The cross bar 15 drives the rotating rod 7 to rotate through the first bevel gear 18 and the second bevel gear 19, that is, the two scrapers 8 rotate, that is, the first conical distillation plate 2 and the second conical distillation plate 5 can be scraped and cleaned, and the accumulation of impurities in the wastewater on the surface of the distillation plate can be effectively prevented from affecting the heat conduction performance of the distillation plate.

[0037] Only some exemplary embodiments of the present utility model are described by way of illustration. Without doubt, for those of ordinary skill in the art, the described embodiments can be modified in various different ways without departing from the spirit and scope of the present utility model. Therefore, the above drawings and description are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present utility model.

Claims

1. A distillation device for treating high-concentration methanol wastewater, comprising a shell (1), a first conical distillation plate (2) and a second conical distillation plate (5), characterized in that: The first conical distillation plate (2) is fixedly arranged on the upper side of the shell (1), the second conical distillation plate (5) is arranged on the lower side of the first conical distillation plate (2), a support rod (4) is fixedly sleeved on the middle part of the second conical distillation plate (5), the lower end of the support rod (4) is fixedly connected to the inner wall of the shell (1), a first conical heating plate (3) is fixedly arranged on the lower surface of the first conical distillation plate (2), a second conical heating plate (6) is fixedly arranged on the lower surface of the second conical distillation plate (5), a water inlet pipe (10) is fixedly arranged on the upper surface of the shell (1), a rotating pipe (11) is rotatably arranged on the inner wall of the upper end of the shell (1), the upper end of the rotating pipe (11) is rotatably connected to the water inlet pipe (10), and the lower end of the rotating pipe (11) is provided with a first transmission mechanism for driving the rotating pipe (11) to rotate; Scrapers (8) are disposed on the upper surfaces of the first conical distillation plate (2) and the second conical distillation plate (5) respectively, a rotating rod (7) is rotatably disposed on the upper end of the support rod (4), one end of each of the two scrapers (8) is fixedly connected to the rotating rod (7), a cross bar (15) is rotatably disposed on the inner wall of one side of the shell (1), a first bevel gear (18) is fixedly sleeved on one end of the cross bar (15), a second bevel gear (19) is fixedly sleeved on the middle end of the rotating rod (7), the first bevel gear (18) is meshingly connected to the second bevel gear (19), the first bevel gear (18) is meshingly connected to the second bevel gear (19), and a second transmission mechanism for driving the cross bar (15) to rotate is disposed inside the water inlet pipe (10).

2. The distillation device for treating high-concentration methanol wastewater according to claim 1, characterized in that: The first transmission mechanism comprises two L-shaped tubes (12), the lower end of the rotating tube (11) is sealed, mounting holes are provided on both sides of the lower end of the rotating tube (11), the two L-shaped tubes (12) are respectively fixedly mounted inside the corresponding mounting holes, and the other ends of the two L-shaped tubes (12) are in opposite directions.

3. The distillation device for treating high-concentration methanol wastewater according to claim 1, characterized in that: The second transmission mechanism comprises an impeller (21) and a transmission rod (13); the transmission rod (13) is rotatably arranged inside the water inlet pipe (10); the impeller (21) is fixedly sleeved on the rod wall of the transmission rod (13); one end of the transmission rod (13) extends to the outside of the water inlet pipe (10); one end of the transmission rod (13) is fixedly sleeved with a first transmission wheel (14); and one end of the cross rod (15) extends to the outside of the housing (1) and is fixedly sleeved with a second transmission wheel (16); the first transmission wheel (14) and the second transmission wheel (16) are connected in transmission via a transmission belt (17).

4. The distillation device for treating high-concentration methanol wastewater according to claim 1, characterized in that: A water outlet pipe (20) with a valve is fixedly arranged on one side of the lower end of the housing (1).

5. The distillation device for treating high-concentration methanol wastewater according to claim 1, characterized in that: An exhaust pipe (22) is fixedly arranged on one side of the upper end of the shell (1).

6. The distillation device for treating high-concentration methanol wastewater according to claim 1, characterized in that: A support frame (9) is fixedly arranged on the top of the shell (1), and the upper end of the water inlet pipe (10) is fixedly connected to the support frame (9).

7. The distillation device for treating high-concentration methanol wastewater according to claim 3, characterized in that: One end of the transmission rod (13) is rotatably connected to the inner wall of the water inlet pipe (10) via a sealed bearing.

8. The distillation device for treating high-concentration methanol wastewater according to claim 3, characterized in that: One end of the cross bar (15) is rotatably connected to the inner wall of the housing (1) via a second sealed bearing.

9. The distillation device for treating high-concentration methanol wastewater according to claim 3, characterized in that: The diameter ratio of the first transmission wheel (14) to the second transmission wheel (16) is 1:10.

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