Device for removing COD (Chemical Oxygen Demand) in coal chemical industry high-salinity wastewater

Abstract

The utility model discloses a device for removing COD (Chemical Oxygen Demand) in coal chemical industry high-salinity wastewater. The device comprises a sealing barrel, an evaporation barrel is fixedly connected to the inner wall of the sealing barrel, a heating evaporator is fixedly connected to the inner wall of the evaporation barrel, a motor is mounted on the surface of the sealing barrel, and an evaporation barrel and a positioning plate are fixedly connected to the inner wall of the sealing barrel. A driving wheel drives a first T-shaped plate to move up and down through a first eccentric shaft which is eccentrically installed, so that a first piston plate moves up and down in a first water suction box, liquid entering the first water suction box through a water inlet hole is fed into a drainage pipe to be drained, and a driven wheel drives a second T-shaped plate to move up and down through a second eccentric shaft. And then a second piston plate is driven to move up and down in a second water absorption box, and liquid entering the second water absorption box is discharged through a cross-shaped water outlet barrel, so that the advantage that the liquid in an evaporation barrel flows and is better in contact with a heating evaporator for heating and evaporation is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to COD device technical field especially relates to a device of removal coal chemical industry high salt wastewater COD. BACKGROUND

[0002] The high concentration brine produced in the coal chemical production process contains a large amount of refractory organic matter (such as PAHs, heterocyclic compounds, etc.), these substances usually have complex aromatic molecular structure, which makes them more stable and more difficult to degrade. It is because of these refractory organic matter that a large amount of evaporation mother liquor needs to be discharged in the evaporation crystallization process, so as to prevent the reduction of salt product quality due to colority and organic matter enrichment, thus causing high impurity salt rate of zero discharge device, high disposal cost and increased water treatment operation cost.

[0003] In the existing water treatment zero discharge process, reducing the impurity salt rate of the zero discharge device mainly studies from two aspects. One is to reduce the organic matter of nanofiltration concentrated water, to reduce the organic matter load of the influent from the source to reduce the mother liquor discharge amount and reduce the impurity salt rate; the second is to directly treat the mother liquor, to reduce the water content and to seek a more efficient and more economical technology to replace the existing technology;

[0004] The commonly used process at present is the advanced oxidation process (AOPs), which uses hydroxyl radical (·OH) for oxidation, such as photocatalytic oxidation, Fenton chemistry and ozone catalytic oxidation, which have been successfully applied to remove or degrade stubborn pollutants. However, ozone oxidation has bottlenecks, and the oxidation efficiency will decay with the service life. At the same time, there are problems such as ozone leakage and unstable operation, which affect the stable operation of the process. In view of the above problems, a device for removing COD of coal chemical industry high salt wastewater is needed. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcomings in the prior art and provides a device for removing COD of coal chemical industry high salt wastewater.

[0006] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0007] A device for removing COD of coal chemical industry high salt wastewater, comprising a sealed barrel, the inner wall of the sealed barrel is fixedly connected with an evaporation cylinder, the inner wall of the evaporation cylinder is fixedly connected with a heating evaporator, the surface of the sealed barrel is provided with a motor, the inner wall of the sealed barrel is fixedly connected with the evaporation cylinder and a positioning plate, the inner wall of the sealed barrel is fixedly connected with a water accumulation barrel, and the inner wall of the water accumulation barrel is provided with a circulating evaporation conveying mechanism.

[0008] The circulating evaporation conveying mechanism comprises a first water absorption box fixedly connected to the inner wall of the water collecting barrel, a conical condensing plate mounted above the evaporation cylinder, a second water absorption box fixedly connected to the inner wall of the evaporation cylinder, a plurality of water inlet holes formed in the inner walls of the first water absorption box and the second water absorption box, and a cross-shaped water outlet cylinder fixedly connected to the inner top wall of the second water absorption box.

[0009] Preferably, the inner wall of the evaporation cylinder is rotationally connected with a driving wheel, the surface of the driving wheel is fixedly connected with a first eccentric shaft, and the first eccentric shaft is arranged eccentrically with the center of the driving wheel.

[0010] Preferably, the inner wall of the positioning plate is rotationally connected with a driven wheel, the surface of the driven wheel is fixedly connected with a second eccentric shaft, and the second eccentric shaft is arranged eccentrically with the center of the driven wheel.

[0011] Preferably, the surfaces of the driving wheel and the driven wheel are sleeved with a belt, the output end of the motor is fixedly connected with a first bevel gear, one end of the driving wheel is fixedly connected with a second bevel gear, and the first bevel gear is engaged with the second bevel gear.

[0012] Preferably, the inner wall of the first water absorption box is slidingly connected with a first piston plate, the first piston plate is matched with the inner wall of the first water absorption box, the lower surface of the first piston plate is fixedly connected with a first T-shaped plate, and the first eccentric shaft is mounted in the interior of the first T-shaped plate.

[0013] Preferably, the inner wall of the second water absorption box is slidingly connected with a second piston plate, the second piston plate is matched with the inner wall of the second water absorption box, the lower surface of the second piston plate is fixedly connected with a second T-shaped plate, and the second eccentric shaft is mounted in the interior of the second T-shaped plate.

[0014] Preferably, the inner wall of the evaporation cylinder is provided with a guide groove, the inner wall of the guide groove is mounted with a supporting plate, and the top end of the supporting plate is fixedly connected with the surface of the conical condensing plate.

[0015] Preferably, the inner wall of the sealing barrel is fixedly connected with an exhaust barrel, the inner wall of the sealing barrel is fixedly connected with a water inlet pipe, the surface of the sealing barrel is fixedly connected with a controller, the inner wall of the sealing barrel is fixedly connected with a cooling pipe, the surface of the cooling pipe is in contact with the surface of the conical condensing plate, the inner top wall of the first water absorption box is fixedly connected with a drain pipe, and one end of the drain pipe extends to the outside of the sealing barrel.

[0016] The utility model discloses the following beneficial effects are obtained:

[0017] When the liquid is heated to evaporate, the driving wheel drives the first T-shaped plate to move up and down through the eccentric installation of the first eccentric shaft, and then drives the first piston plate to move up and down in the first water suction box, so that the liquid entering the first water suction box through the water inlet hole is sent into the drain pipe to be discharged, the driven wheel drives the second T-shaped plate to move up and down through the second eccentric shaft, and then drives the second piston plate to move up and down in the second water suction box, so that the liquid entering the second water suction box is discharged through the cross water outlet cylinder, which has the advantage that the liquid in the evaporation cylinder flows and better contacts the heating evaporator to evaporate, and by the above structure, the salt rate in the water is better reduced by the evaporation method. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A three-dimensional structure schematic diagram of a device for removing COD of coal chemical high-salinity wastewater is proposed in the utility model.

[0019] Figure 2 A three-dimensional structure schematic diagram of a sealing barrel in a device for removing COD of coal chemical high-salinity wastewater is proposed in the utility model.

[0020] Figure 3 A sectional structure schematic diagram of a first water suction box and a second water suction box in a device for removing COD of coal chemical high-salinity wastewater is proposed in the utility model.

[0021] Figure 4 A device for removing COD of coal chemical high-salinity wastewater is proposed in the utility model. Figure 3 An enlarged structure schematic diagram of A in the device for removing COD of coal chemical high-salinity wastewater is proposed in the utility model.

[0022] Figure 5 A sectional structure schematic diagram of a conical condensing plate in the device for removing COD of coal chemical high-salinity wastewater is proposed in the utility model.

[0023] In the drawing: 1, sealing barrel; 2, water inlet pipe; 3, exhaust barrel; 4, motor; 5, controller; 6, water accumulation barrel; 7, conical condensing plate; 8, cooling pipe; 9, first water suction box; 10, heating evaporator; 11, guide groove; 12, support plate; 13, drain pipe; 14, second T-shaped plate; 15, water inlet hole; 16, first piston plate; 17, first T-shaped plate; 18, second water suction box; 19, second piston plate; 20, driven wheel; 21, positioning plate; 22, second eccentric shaft; 23, cross water outlet cylinder; 24, first bevel gear; 25, second bevel gear; 26, first eccentric shaft; 27, belt; 28, driving wheel; 29, evaporation cylinder. DETAILED DESCRIPTION

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

[0025] Referring to Figures 1-5 A device for removing COD of coal chemical high-salt wastewater, comprising a sealed barrel 1, the inner wall of the sealed barrel 1 is fixedly connected with an evaporation cylinder 29, the inner wall of the evaporation cylinder 29 is fixedly connected with a heating evaporator 10, the surface of the sealed barrel 1 is provided with a motor 4, the inner wall of the sealed barrel 1 is fixedly connected with the evaporation cylinder 29 and a positioning plate 21, the inner wall of the sealed barrel 1 is fixedly connected with a water accumulation barrel 6, and the inner wall of the water accumulation barrel 6 is provided with a circulating evaporation conveying mechanism;

[0026] The circulating evaporation conveying mechanism comprises a first water suction box 9 fixedly connected to the inner wall of the water accumulation barrel 6, a conical condensing plate 7 is arranged above the evaporation cylinder 29, the inner wall of the evaporation cylinder 29 is fixedly connected with a second water suction box 18, a plurality of water inlet holes 15 are formed in the inner walls of the first water suction box 9 and the second water suction box 18, and the inner top wall of the second water suction box 18 is fixedly connected with a cross-shaped water outlet cylinder 23.

[0027] The heating evaporator 10 is arranged to heat the liquid in the evaporation cylinder 29, the water accumulation barrel 6 is arranged to store clean water filtered and evaporated, the first water suction box 9 is arranged to absorb clean water in the water accumulation barrel 6, the second water suction box 18 is arranged to absorb water sources needing to be evaporated in the evaporation cylinder 29, the cross-shaped water outlet cylinder 23 is arranged to make the water sources in the evaporation cylinder 29 flow circularly, so that the water sources are better heated and evaporated by the heating evaporator 10, and the conical condensing plate 7 is arranged to condense water drops falling into the water accumulation barrel 6 when the conical condensing plate 7 is heated by hot gas.

[0028] In the utility model, the inner wall of the evaporation cylinder 29 is rotatably connected with a driving wheel 28, the surface of the driving wheel 28 is fixedly connected with a first eccentric shaft 26, and the first eccentric shaft 26 is arranged eccentrically to the center of the driving wheel 28.

[0029] The driving wheel 28 is arranged to drive the first eccentric shaft 26 to rotate, and the first eccentric shaft 26 is arranged to drive the first T-shaped plate 17 to move up and down.

[0030] In the utility model, the inner wall of the positioning plate 21 is rotatably connected with a driven wheel 20, the surface of the driven wheel 20 is fixedly connected with a second eccentric shaft 22, and the second eccentric shaft 22 is arranged eccentrically to the center of the driven wheel 20.

[0031] The driven wheel 20 is arranged to drive the second eccentric shaft 22 to rotate, and the second eccentric shaft 22 is arranged to drive the second T-shaped plate 14 to move up and down.

[0032] In the utility model, the surface of the driving wheel 28 and the driven wheel 20 is sleeved with a belt 27, the output end of the motor 4 is fixedly connected with a first bevel gear 24, one end of the driving wheel 28 is fixedly connected with a second bevel gear 25, and the first bevel gear 24 is engaged with the second bevel gear 25.

[0033] By setting the belt 27, the driving wheel 28 rotates through the belt 27 to drive the driven wheel 20 to rotate, and by setting the first bevel gear 24, the second bevel gear 25 is driven to rotate.

[0034] In the utility model, the inner wall of the first water suction box 9 is slidably connected with a first piston plate 16, the first piston plate 16 is matched with the inner wall of the first water suction box 9, the lower surface of the first piston plate 16 is fixedly connected with a first T-shaped plate 17, and the first eccentric shaft 26 is installed in the inside of the first T-shaped plate 17.

[0035] The water flow entering the first water suction box 9 is delivered into the drain pipe 13 by setting the first piston plate 16.

[0036] In the utility model, the inner wall of the second water suction box 18 is slidably connected with a second piston plate 19, the second piston plate 19 is matched with the inner wall of the second water suction box 18, the lower surface of the second piston plate 19 is fixedly connected with a second T-shaped plate 14, and the second eccentric shaft 22 is installed in the inside of the second T-shaped plate 14.

[0037] The water flow in the second water suction box 18 is delivered into the cross-shaped water outlet cylinder 23 by setting the second piston plate 19.

[0038] In the utility model, the inner wall of the evaporation cylinder 29 is provided with a guide groove 11, the inner wall of the guide groove 11 is installed with a supporting plate 12, and the top end of the supporting plate 12 is fixedly connected with the surface of the conical condensing plate 7.

[0039] The supporting plate 12 is supported and protected by setting the guide groove 11, and the conical condensing plate 7 is supported by setting the supporting plate 12.

[0040] In the utility model, the inner wall of the sealing barrel 1 is fixedly connected with an exhaust barrel 3, the inner wall of the sealing barrel 1 and the evaporation cylinder 29 is fixedly connected with a water inlet pipe 2, the surface of the sealing barrel 1 is fixedly connected with a controller 5, the inner wall of the sealing barrel 1 is fixedly connected with a cooling pipe 8, the surface of the cooling pipe 8 is in contact with the surface of the conical condensing plate 7, the inner top wall of the first water suction box 9 is fixedly connected with a drain pipe 13, and one end of the drain pipe 13 extends to the outside of the sealing barrel 1.

[0041] The water flow needing evaporation treatment in the evaporation cylinder 29 is delivered by setting the water inlet pipe 2, and the surface of the conical condensing plate 7 is cooled by setting the cooling pipe 8, and cooling water can be introduced into the inside of the cooling pipe 8.

[0042] Working principle: in use, the water flow through the inlet pipe 2 into the evaporation cylinder 29, start the controller 5 to make the heating evaporator 10 heating work, the liquid in the evaporation cylinder 29 is heated and evaporated, the hot gas is evaporated by the surface of the conical condensing plate 7, the hot gas is cooled and condensed into water droplets into the water bucket 6 collection, start the motor 4, the motor 4 through the first bevel gear 24 drive second bevel gear 25 rotation, the second bevel gear 25 drive driving wheel 28 rotation, driving wheel 28 through the eccentric installation of the first eccentric shaft 26 drive first T-shaped plate 17 up and down movement, the first T-shaped plate 17 drive first piston plate 16 in the first water suction box 9 up and down movement, the liquid through the water inlet hole 15 into the first water suction box 9 into the drain pipe 13 discharge, driving wheel 28 through the belt 27 drive driven wheel 20 rotation, driven wheel 20 through the second eccentric shaft 22 drive second T-shaped plate 14 up and down movement, the second T-shaped plate 14 drive second piston plate 19 in the second water suction box 18 up and down movement, the liquid into the second water suction box 18 through the cross water outlet cylinder 23 discharge, the purpose of this is to make the liquid in the evaporation cylinder 29 flow, better with heating evaporator 10 contact heating and evaporation, by the above structure, through the evaporation method better reduce the salt rate in water.

[0043] The above is only the preferred embodiment of the present application, but the protection scope of the present application is not limited to this, any skilled person in the art according to the technical scheme and the utility model concept of the present application within the technical range disclosed by the present application, equivalent replacement or change, should be covered in the protection scope of the present application.

Claims

1. A device for removing COD of coal chemical high-salinity wastewater, comprising a sealed barrel (1), characterized in that, The inner wall of the sealing barrel (1) is fixedly connected with an evaporation cylinder (29), the inner wall of the evaporation cylinder (29) is fixedly connected with a heating evaporator (10), the surface of the sealing barrel (1) is provided with a motor (4), the inner wall of the sealing barrel (1) is fixedly connected with the evaporation cylinder (29) and a positioning plate (21), the inner wall of the sealing barrel (1) is fixedly connected with a water accumulation barrel (6), and the inner wall of the water accumulation barrel (6) is provided with a circulating evaporation conveying mechanism; The circulating evaporation conveying mechanism comprises a first water absorption box (9) fixedly connected to the inner wall of the water accumulation barrel (6), a conical condensing plate (7) is arranged above the evaporation cylinder (29), a second water absorption box (18) is fixedly connected to the inner wall of the evaporation cylinder (29), a plurality of water inlet holes (15) are formed in the inner walls of the first water absorption box (9) and the second water absorption box (18), and a cross-shaped water outlet cylinder (23) is fixedly connected to the inner top wall of the second water absorption box (18). 2.The device for removing COD of coal chemical high-salinity wastewater according to claim 1, characterized in that, The inner wall of the evaporation cylinder (29) is rotatably connected with a driving wheel (28), the surface of the driving wheel (28) is fixedly connected with a first eccentric shaft (26), and the first eccentric shaft (26) is eccentrically arranged with the center of the driving wheel (28).

3. The device for removing COD of coal chemical high-salinity wastewater according to claim 2, characterized in that, The inner wall of the positioning plate (21) is rotatably connected with a driven wheel (20), the surface of the driven wheel (20) is fixedly connected with a second eccentric shaft (22), and the second eccentric shaft (22) is eccentrically arranged with the center of the driven wheel (20).

4. The device for removing COD of coal chemical high-salinity wastewater according to claim 3, characterized in that, The surfaces of the driving wheel (28) and the driven wheel (20) are sleeved with a belt (27), the output end of the motor (4) is fixedly connected with a first bevel gear (24), one end of the driving wheel (28) is fixedly connected with a second bevel gear (25), and the first bevel gear (24) is meshed with the second bevel gear (25).

5. The device for removing COD of coal chemical high-salinity wastewater according to claim 2, characterized in that, The inner wall of the first water absorption box (9) is slidably connected with a first piston plate (16), the first piston plate (16) is matched with the inner wall of the first water absorption box (9), the lower surface of the first piston plate (16) is fixedly connected with a first T-shaped plate (17), and the first eccentric shaft (26) is arranged in the first T-shaped plate (17).

6. The device for removing COD of coal chemical high-salinity wastewater according to claim 3, characterized in that, The inner wall of the second water absorption box (18) is slidably connected with a second piston plate (19), the second piston plate (19) is matched with the inner wall of the second water absorption box (18), the lower surface of the second piston plate (19) is fixedly connected with a second T-shaped plate (14), and the second eccentric shaft (22) is arranged in the second T-shaped plate (14).

7. The device for removing COD of coal chemical high-salinity wastewater according to claim 1, characterized in that, The inner wall of the evaporation cylinder (29) is provided with a guide groove (11), the inner wall of the guide groove (11) is provided with a supporting plate (12), and the top end of the supporting plate (12) is fixedly connected with the surface of the conical condensing plate (7). 8.The device for removing COD of coal chemical high-salinity wastewater according to claim 1, characterized in that, The inner wall of the sealing barrel (1) is fixedly connected with an exhaust barrel (3), the inner wall of the sealing barrel (1) and the evaporation cylinder (29) is fixedly connected with a water inlet pipe (2), the surface of the sealing barrel (1) is fixedly connected with a controller (5), the inner wall of the sealing barrel (1) is fixedly connected with a cooling pipe (8), the surface of the cooling pipe (8) is in close contact with the surface of the conical condensing plate (7), the inner top wall of the first water absorbing box (9) is fixedly connected with a drain pipe (13), one end of the drain pipe (13) extends to the outside of the sealing barrel (1).

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