A tower plate assembly for treating blue carbon wastewater

Abstract

The utility model relates to a tower plate assembly for treating semi-coke wastewater, which comprises a plurality of air guide parts, tower plates and liquid storage layers from bottom to top, the bottom of the outer wall of the liquid storage layer is fixed on the edge of the tower plate, and the top of the outer wall of the liquid storage layer is provided with an overflow port for overflowing the processed fluid inside the liquid storage layer; a plurality of baffle plates are provided inside the liquid storage layer, the fixed end of the baffle plate is fixedly connected to the inner wall of the liquid storage layer, the free end points to the opposite inner wall of the liquid storage layer, and a gap is left between the baffle plate and the opposite inner wall of the liquid storage layer to allow the fluid to pass through; two adjacent baffle plates are staggered so that the fluid in the liquid storage layer forms a baffle flow between the plurality of baffle plates; fillers are installed in the baffle plates; a plurality of vents are evenly and densely distributed on the part of the tower plate corresponding to the baffle plate, so that the steam below the tower plate assembly enters the baffle plate through the vents; the baffle plate corresponds to the air guide part one by one up and down, and the steam below the tower plate passes through the vents after being accelerated by the air guide part.

Description

Technical Field

[0001] The utility model belongs to the technical field of blue coke wastewater treatment, and in particular relates to a tower plate component for treating blue coke wastewater. Background Art

[0002] Semi-coke wastewater is a kind of industrial wastewater that is difficult to treat in the field of coal chemical industry, because semi-coke wastewater is the wastewater generated by cooling and washing materials such as coal gas during the production of semi-coke. The wastewater contains a large amount of organic and inorganic pollutants, such as phenolic substances, coal tar, coal slag, etc. Solid waste can be removed by filtration or precipitation, but it is difficult to completely remove water-soluble or oil-soluble organic pollutants in semi-coke wastewater. Phenols in semi-coke wastewater are valuable chemicals and can be recycled. The recovery and treatment method is: use an extractant to extract phenolic organic matter in semi-coke wastewater, the biodegradability of the wastewater after dephenolization is improved, and it can be subsequently biochemically treated, the mixture of extractant and phenol is stripped and separated, the separated extractant can be reused, and the obtained phenolic substances are recycled as resources. However, traditional stripping equipment is mainly plate type or packing type, with low separation efficiency. When steam and fluid are in contact and mass transfer in the stripping tower, the mixture of extractant and phenol has a slightly larger viscosity, which affects the full contact and mass transfer efficiency of the mixture with steam. Utility Model Content

[0003] The technical problem to be solved by the utility model is that after the extraction treatment of the semi-coke wastewater, the extraction phase containing phenolic substances obtained has the problems of insufficient gas-liquid contact, low mass transfer efficiency and poor separation effect during the steam stripping separation treatment.

[0004] The utility model provides a tower plate assembly for treating blue carbon wastewater, which comprises a plurality of air guide parts, a tower plate and a liquid storage layer from bottom to top, the bottom of the outer wall of the liquid storage layer is fixed to the edge of the tower plate, and the top of the outer wall of the liquid storage layer is provided with an overflow port for overflowing the processed fluid inside the liquid storage layer;

[0005] A plurality of baffles are arranged inside the liquid storage layer, the fixed end of the baffle is fixedly connected to the inner wall of the liquid storage layer, the free end points to the inner wall of the opposite liquid storage layer, and a gap is left between the inner wall of the opposite liquid storage layer to allow fluid to pass through; two adjacent baffles are arranged in a staggered manner, so that the fluid in the liquid storage layer forms a baffle flow between the baffles; fillers are installed in the baffles;

[0006] The part of the tower plate corresponding to the baffle plate is evenly and densely covered with a plurality of vents, so that the steam below the tower plate assembly enters the baffle plate through the vents; the baffle plate corresponds to the air guide part one by one up and down, and the steam below the tower plate is accelerated by the air guide part before passing through the vents.

[0007] Optionally, the outer wall of the liquid storage layer is a solid plate, so that the liquid storage layer can accommodate a certain amount of fluid; the bottom of the outer wall of the liquid storage layer is fixedly connected to the outer edge of the upper surface of the tower plate.

[0008] Optionally, the fixed ends of two adjacent deflection baffles are respectively connected to the opposite inner walls of the liquid storage layer, that is, the fixed end of one deflection baffle is close to the free end of another adjacent deflection baffle, so that the fluid in the liquid storage layer flows along the deflection baffle through the gaps between each free end and the inner wall of the liquid storage layer.

[0009] Optionally, the height of the baffle is equal to the height of the liquid storage layer, and the side wall of the baffle is in the form of a mesh with evenly distributed through holes, so that steam and fluid can freely enter the baffle; the top of the baffle is an air blocking plate, which is a solid plate that can prevent the steam in the baffle from being discharged from the top, so that the steam can only be discharged from the side of the baffle.

[0010] Optionally, the air guide portion includes two oppositely arranged air guide plates, the length of the air guide plates is equal to the length of the corresponding baffle plates, the air guide plates are rectangular, the top edges of the air guide plates are hinged to the lower surface of the tower plate, and the bottom edges can swing freely, thereby changing the inclination angle of the air guide plates;

[0011] When the two air guide plates swing away from each other, the longitudinal section of the air guide portion becomes a trapezoid with a small top and a large bottom. When the steam below passes through the air guide portion, it can be accelerated, increasing the steam pressure and passing through the air vents upward. At the same time, the liquid in the liquid storage layer will not flow down from the air vents.

[0012] The tray assembly for treating blue carbon wastewater described in the utility model has the following beneficial effects:

[0013] (1) The portion of the liquid storage layer between two adjacent baffles is a flow channel, and most of the fluid in the liquid storage layer flows along the baffle flow channel, and a small portion of the fluid can pass through the packing of the baffle. The inside of the baffle is filled with fluid, and the steam and fluid (the extraction phase containing phenols) entering the baffle meet and fully contact on the surface and inside of the packing, so as to carry out gas-liquid mass transfer and improve the mass transfer efficiency;

[0014] (2) Steam can be discharged from the baffle plate to the flow channel. Due to the dispersing effect of the filler, the steam can be evenly dispersed before being discharged into the flow channel, and then gas-liquid mass transfer is carried out with the fluid in the flow channel, thereby improving the mass transfer efficiency;

[0015] (3) The extractant and a small amount of organic pollutants are vaporized and enter the steam, where they are carried away by the steam, leaving the crude phenol liquid, which overflows to the next tray assembly and performs gas-liquid mass transfer with the steam again; the movement of the steam in the baffle plate is an impact on the packing, which is conducive to the reorganization and uniform distribution of the packing in the baffle plate;

[0016] (4) Traditionally, valves are provided at the vent holes to prevent the liquid on the tower plate from flowing down from the vent holes. In the utility model, the steam below the tower plate is accelerated by the air guide and then passes through the vent holes. The steam pressure can automatically prevent the liquid on the tower plate from flowing down. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the tower plate assembly for treating blue carbon wastewater;

[0018] Figure 2 It is a schematic diagram of the coordination between the baffle plate and the vent hole;

[0019] Figure 3 A side view schematic diagram of a tower plate assembly.

[0020] In the accompanying drawings, 1-tower plate, 2-liquid storage layer, 3-overflow port, 4-baffle, 5-vent, 6-air blocking plate, 7-air guide plate. DETAILED DESCRIPTION

[0021] This embodiment provides a tray assembly for treating blue carbon wastewater, such as Figure 1-Figure 3 As shown, from bottom to top, it includes a plurality of air guide parts, a tower plate 1 and a liquid storage layer 2. The bottom of the outer wall of the liquid storage layer 2 is fixed to the edge of the tower plate 1. The top of the outer wall of the liquid storage layer 2 is provided with an overflow port 3 for overflowing the processed fluid inside the liquid storage layer 2.

[0022] A plurality of baffles 4 are provided inside the liquid storage layer 2. The fixed end of the baffle 4 is fixedly connected to the inner wall of the liquid storage layer 2, and the free end points to the inner wall of the opposite liquid storage layer 2, and a gap is left between the baffles 4 and the inner wall of the opposite liquid storage layer 2 to allow fluid to pass through. Two adjacent baffles 4 are staggered so that the fluid in the liquid storage layer 2 forms a baffle flow between the baffles 4. The baffles 4 are filled with fillers.

[0023] The portion of the tower plate 1 corresponding to the deflector baffle 4 is evenly and densely distributed with a plurality of vents 5, so that the steam below the tower plate assembly enters the deflector baffle 4 through the vents 5; the deflector baffle 4 corresponds one by one to the air guide portion up and down, and the steam below the tower plate 1 is accelerated by the air guide portion before passing through the vents 5.

[0024] Optionally, the outer wall of the liquid storage layer 2 is a solid plate, so that the liquid storage layer 2 can accommodate a certain amount of fluid; the bottom of the outer wall of the liquid storage layer 2 is fixedly connected to the outer edge of the upper surface of the tower plate 1.

[0025] Optionally, one side of the tower plate assembly fixedly connected to the inner wall of the stripping tower is the fixed side, and the other opposite side is the overflow side. The overflow port 3 is arranged on the overflow side of the tower plate assembly, and the overflow port 3 is a notch at the top of the outer wall of the liquid storage layer 2.

[0026] Optionally, the fixed ends of two adjacent baffles 4 are respectively connected to the opposite inner walls of the liquid storage layer 2, that is, the fixed end of one baffle 4 is close to the free end of another adjacent baffle 4, so that the fluid in the liquid storage layer 2 flows along the baffle 4 through the gaps between each free end and the inner wall of the liquid storage layer 2, thereby extending the residence time of the fluid in the liquid storage layer 2, facilitating full contact between the fluid and the steam, and promoting mass transfer.

[0027] Optionally, the height of the baffle plate 4 is equal to the height of the liquid storage layer 2, and the side wall of the baffle plate 4 is in the form of a mesh, and the mesh is evenly and densely covered with through holes, so that steam and fluid can freely enter the baffle plate 4; the top of the baffle plate 4 is an air blocking plate 6, which is a solid plate, and can prevent the steam in the baffle plate 4 from being discharged from the top, so that the steam can only be discharged from the side of the baffle plate 4. The baffle plate 4 is evenly filled with fillers, which can be conventional fillers in the art, and the size of the fillers is larger than the aperture of the vents 5, so that the fillers are blocked in the baffle plate 4 to prevent them from being lost.

[0028] Optionally, the air guide portion includes two oppositely arranged air guide plates 7, the length of the air guide plates 7 is equal to the length of the corresponding baffle plates 4, the air guide plates 7 are rectangular, the top edges of the air guide plates 7 are hinged to the lower surface of the tower plate 1, and the bottom edges can swing freely, thereby changing the inclination angle of the air guide plates 7;

[0029] When the two air guide plates 7 swing away from each other, the longitudinal section of the air guide portion is a trapezoid with a small top and a large bottom. When the steam below passes through the air guide portion, it can be accelerated, so that the steam pressure increases and can pass through the vent hole 5 upward, while the liquid in the liquid storage layer 2 will not flow down from the vent hole 5. By adjusting the inclination angle of the two air guide plates 7, the gas velocity of the steam passing through the air guide portion can be controlled, thereby preventing the liquid in the liquid storage layer 2 from flowing down through the vent hole 5.

Claims

1. A tray assembly for treating blue carbon wastewater, characterized in that: From bottom to top, it includes several air guide parts, tower plates and liquid storage layers. The bottom of the outer wall of the liquid storage layer is fixed to the edge of the tower plate, and the top of the outer wall of the liquid storage layer is provided with an overflow port for overflowing the processed fluid inside the liquid storage layer. A plurality of baffles are arranged inside the liquid storage layer, the fixed end of the baffle is fixedly connected to the inner wall of the liquid storage layer, the free end points to the inner wall of the opposite liquid storage layer, and a gap is left between the inner wall of the opposite liquid storage layer to allow fluid to pass through; two adjacent baffles are arranged in a staggered manner, so that the fluid in the liquid storage layer forms a baffle flow between the baffles; fillers are installed in the baffles; The part of the tower plate corresponding to the baffle plate is uniformly and densely covered with a plurality of vents, so that the steam below the tower plate assembly enters the baffle plate through the vents; the baffle plate corresponds to the air guide part one by one, and the steam below the tower plate is accelerated by the air guide part before passing through the vents; The side wall of the baffle is in the form of a mesh, and the mesh is evenly and densely covered with through holes, so that steam and fluid can freely enter the baffle; The top of the baffle is an air blocking plate, which is a solid plate that can prevent the steam in the baffle from being discharged from the top, so that the steam can only be discharged from the side of the baffle; The air guide part comprises two oppositely arranged air guide plates, the length of the air guide plates is equal to the length of the corresponding baffle plates, the air guide plates are rectangular, the top edges of the air guide plates are hinged to the lower surface of the tower plate, and the bottom edges can swing freely, thereby changing the inclination angle of the air guide plates; When the two air guide plates swing away from each other, the longitudinal section of the air guide portion becomes a trapezoid with a small top and a large bottom. When the steam below passes through the air guide portion, it can be accelerated, increasing the steam pressure and passing through the air vents upward. At the same time, the liquid in the liquid storage layer will not flow down from the air vents.

2. The tray assembly for treating blue carbon wastewater according to claim 1, characterized in that: The outer wall of the liquid storage layer is a solid plate, and the bottom of the outer wall of the liquid storage layer is fixedly connected to the outer edge of the upper surface of the tower plate.

3. The tray assembly for treating blue carbon wastewater according to claim 1, characterized in that: The fixed ends of two adjacent deflection baffles are respectively connected to the opposite inner walls of the liquid storage layer, and the fixed end of one deflection baffle is close to the free end of another adjacent deflection baffle, so that the fluid in the liquid storage layer flows along the deflection baffle through the gaps between each free end and the inner wall of the liquid storage layer.

4. The tray assembly for treating blue carbon wastewater according to claim 1, characterized in that: The height of the deflection baffle is equal to the height of the liquid storage layer.

Images