CN213337504U - Ozone catalyst sieving mechanism - Google Patents
Ozone catalyst sieving mechanism Download PDFInfo
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- CN213337504U CN213337504U CN202022257053.5U CN202022257053U CN213337504U CN 213337504 U CN213337504 U CN 213337504U CN 202022257053 U CN202022257053 U CN 202022257053U CN 213337504 U CN213337504 U CN 213337504U
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Abstract
The utility model relates to an ozone catalyst sieving mechanism, include: the system comprises an ozone generator, a catalytic oxidation reaction column group and a tail gas destruction device; the catalytic oxidation reaction column group is formed by connecting a plurality of catalytic oxidation reaction columns in parallel; a gas-liquid mixing zone, a catalyst layer and an end enclosure are respectively arranged from the lower part to the upper part of the catalytic oxidation reaction column; the gas-liquid mixing area is connected with the catalyst layer in the vertical direction through flange holes on the flange, and the end socket is connected with the catalyst layer in the vertical direction through flange holes on the flange. The utility model has the advantages that: the ozone catalyst screening device is made of organic glass, so that the aeration condition, the catalyst condition and the gas-liquid mixing condition in the reaction column can be observed conveniently; the plurality of catalytic oxidation reaction columns are provided with sampling ports which can be used for monitoring catalytic oxidation effects of catalysts at different stages; a plurality of catalytic oxidation reaction columns are connected in parallel, and can be used for testing various types of catalysts at the same time under the condition of the same operating parameter, so that the screening efficiency is improved.
Description
Technical Field
The utility model relates to a sewage treatment device technical field especially relates to an ozone catalyst sieving mechanism.
Background
Many waste water has the characteristics of high organic matter concentration, complex components, difficult biodegradation and the like; catalytic ozonation technology has been widely used as a new technology in advanced treatment technology. The catalytic oxidation of ozone promotes the decomposition of ozone by introducing a catalyst to generate hydroxyl radicals with higher oxidation potential, and the hydroxyl radicals generate a chain reaction to decompose organic matters which are difficult to degrade in water, so that the utilization rate of ozone is improved, and the treatment efficiency is obviously improved. The catalyst for the heterogeneous catalytic oxidation of ozone is in a solid state, is easy to separate from water, can be recycled, and has low post-treatment cost; so that the heterogeneous catalytic oxidation is more generally applied at present.
The heterogeneous catalytic oxidation catalyst mainly comprises metal oxides (manganese and iron oxides are more in application), and the supported catalyst generally loads active components on carriers such as aluminum oxide, active carbon and silicon dioxide, and simultaneously improves the catalytic oxidation efficiency by utilizing the characteristics of the carriers. Currently developed ozone catalytic oxidation devices are generally single-stage or multi-stage series-connected tanks, and can not realize simultaneous testing of multiple catalysts under the same parameter condition, can not evaluate the catalytic oxidation performance of different catalysts, and can not quickly screen out ozone catalysts with higher quality.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the defects in the prior art and providing an ozone catalyst screening device.
This kind of ozone catalyst sieving mechanism includes: the system comprises an ozone generator, a catalytic oxidation reaction column group and a tail gas destruction device; the catalytic oxidation reaction column group is formed by connecting a plurality of catalytic oxidation reaction columns in parallel; a gas-liquid mixing zone, a catalyst layer and an end enclosure are respectively arranged from the lower part to the upper part of the catalytic oxidation reaction column; the gas-liquid mixing area is connected with the catalyst layer in the vertical direction through a flange hole on a flange, and the end socket is connected with the catalyst layer in the vertical direction through a flange hole on the flange; the bottom of the gas-liquid mixing area is provided with an ozone aeration device, an ozone generator is connected with the ozone aeration device through a pipeline, and a gas flowmeter is also arranged on the connected pipeline; an opening is arranged at the bottom of the gas-liquid mixing area below the ozone aeration device and is used as an ozone inlet; a water inlet and a water outlet are arranged on the side wall of the gas-liquid mixing area, and the position of the water outlet is opposite to the water inlet; the front end of the water outlet is provided with a valve; the water inlet is connected with one end of a valve through a pipeline, the other end of the valve is connected with one end of a water inlet lifting pump through a pipeline, and the other ends of a plurality of water inlet lifting pumps are all connected into a water inlet tank; the bottom of the catalyst layer is provided with a porous supporting overflowing sieve plate; a first sampling port is arranged on the side wall of the middle part of the catalyst layer, and a valve is arranged at the front end of the first sampling port; a second sampling port is arranged on the side wall of the top of the catalyst layer, and a valve is arranged at the front end of the second sampling port; the bottom of the seal head is provided with a rectangular overflowing sieve plate; a water outlet is arranged on the side wall of the end socket, and a valve is arranged at the front end of the water outlet; the top of the end socket is provided with an exhaust port; the outlet pipeline of every gas vent all collects and inserts tail gas destruction device after a pipeline in the catalytic oxidation reaction column group, and the outlet conduit of every catalytic oxidation reaction column water outlet and the drainage pipe of outlet all collect and insert the drain box after same pipeline in the catalytic oxidation reaction column group.
Preferably, the catalytic oxidation reaction columns in the catalytic oxidation reaction column group are all made of organic glass, and the outer walls of the catalytic oxidation reaction columns are all provided with capacity scale marks.
Preferably, the ozone aeration device is fixed at the center of the bottom of the catalytic oxidation reaction column.
Preferably, the porous support overflowing sieve plate is fully distributed with round holes, and a rectangular overflowing sieve plate is provided with rectangular gaps; the area of the porous support overflowing sieve plate is the same as the cross-sectional area of the catalyst layer, and the area of the rectangular overflowing sieve plate is the same as the cross-sectional area of the end enclosure.
The utility model has the advantages that: the ozone catalyst screening device is made of organic glass, so that the aeration condition, the catalyst condition and the gas-liquid mixing condition in the reaction column can be observed conveniently; the plurality of catalytic oxidation reaction columns are provided with sampling ports which can be used for monitoring catalytic oxidation effects of catalysts at different stages; a plurality of catalytic oxidation reaction columns are connected in parallel, and can be used for testing various types of catalysts at the same time under the condition of the same operating parameter, so that the screening efficiency is improved.
Drawings
FIG. 1 is a schematic view of an ozone catalyst screening apparatus;
FIG. 2 is a schematic view of a perforated supported flow screen deck;
fig. 3 is a schematic view of a rectangular flow-through screen deck.
Description of reference numerals: the device comprises an ozone generator 1, a tail gas destruction device 3, a catalytic oxidation reaction column 4, a gas-liquid mixing zone 5, a catalyst layer 6, a seal head 7, an ozone inlet 8, an ozone aeration device 9, a water inlet 10, a water outlet 11, a porous support overflowing sieve plate 12, a first sampling port 13, a second sampling port 14, a rectangular overflowing sieve plate 15, a water outlet 16, an exhaust port 17, a flange 18, a gas flowmeter 19, a valve 20, a water inlet lift pump 21, a water inlet tank 22, a water outlet tank 23 and a flange hole 24.
Detailed Description
The present invention will be further described with reference to the following examples. The following description of the embodiments is merely provided to aid in understanding the invention. It should be noted that, for those skilled in the art, the present invention can be modified in several ways without departing from the principle of the present invention, and these modifications and modifications also fall into the protection scope of the claims of the present invention.
The utility model discloses an ozone catalyst screening plant is shown as figure 1, include: the device comprises an ozone generator 1, a catalytic oxidation reaction column group and a tail gas destruction device 3; the catalytic oxidation reaction column group is formed by connecting a plurality of catalytic oxidation reaction columns 4 (the materials are organic glass, and the outer wall of each catalytic oxidation reaction column is provided with a capacity scale mark) in parallel; a gas-liquid mixing zone 5, a catalyst layer 6 and an end enclosure 7 are respectively arranged from the lower part to the upper part of the catalytic oxidation reaction column 4; the gas-liquid mixing zone 5 is connected with the catalyst layer 6 in the vertical direction through a flange hole 24 on the flange 18, and the end socket 7 is connected with the catalyst layer 6 in the vertical direction through a flange hole 24 on the flange 18; the bottom of the gas-liquid mixing zone 5 is provided with an ozone aeration device 9 (fixed at the center of the bottom of the catalytic oxidation reaction column 4), the ozone generator 1 is connected with the ozone aeration device 9 through a pipeline, and the connected pipeline is also provided with a gas flowmeter 19; an opening is arranged at the bottom of the gas-liquid mixing zone 5 below the ozone aeration device 9 and serves as an ozone inlet 8; a water inlet 10 and a water outlet 11 are arranged on the side wall of the gas-liquid mixing area 5, and the position of the water outlet 11 is opposite to the water inlet 10; a valve 20 is arranged at the front end of the water outlet 11; the water inlet 10 is connected with one end of a valve 20 through a pipeline, the other end of the valve 20 is connected with one end of a water inlet lifting pump 21 through a pipeline, and the other ends of a plurality of water inlet lifting pumps 21 are connected into a water inlet tank 22; the bottom of the catalyst layer 6 is provided with a porous supporting overflowing sieve plate 12 (full of round holes); a first sampling port 13 is arranged on the side wall of the middle part of the catalyst layer 6, and a valve 20 is arranged at the front end of the first sampling port 13; a second sampling port 14 is arranged on the side wall of the top of the catalyst layer 6, and a valve 20 is arranged at the front end of the second sampling port 14; the bottom of the seal head 7 is provided with a rectangular overflowing sieve plate 15 (provided with a rectangular gap); a water outlet 16 is arranged on the side wall of the seal head 7, and a valve 20 is arranged at the front end of the water outlet 16; the top of the seal head 7 is provided with an exhaust port 17; the outlet pipeline of each exhaust port 17 in the catalytic oxidation reaction column group is connected into the tail gas destruction device 3 after being converged to a pipeline, and the water outlet pipeline of the water outlet 16 on each catalytic oxidation reaction column 4 in the catalytic oxidation reaction column group and the water drainage pipeline of the water outlet 11 are connected into the water drainage box 23 after being converged to the same pipeline.
As an example, the evaluation method of the ozone catalyst screening device is as follows:
the selected catalytic oxidation reaction column group comprises 5 catalytic oxidation reaction columns, and the test on 5 different ozone catalysts can be realized.
Before the test is started, a flange between an end socket of each catalytic oxidation reaction column and a catalyst layer is opened, 5 ozone catalysts of different types are selected and named as a catalyst A, a catalyst B, a catalyst C, a catalyst D and a catalyst E respectively, each catalyst is loaded into each catalytic oxidation reaction column from the upper end of the catalyst layer to a scale of 5.0L, and the end socket is connected with the catalyst layer flange.
Opening a distribution box of an ozone catalyst screening device to start a test, opening a front end valve of a water inlet of each reaction column, opening each water inlet lifting pump, setting the required hydraulic retention time to be 30 minutes, controlling the water inlet flow to be 5L/h by adjusting each water inlet lifting pump, opening an ozone generator, adjusting the air inlet flow of the ozone generator to be 20L/h, adjusting the current of the ozone generator to be 1.5A when the liquid level of wastewater reaches 0.5L, enabling the ozone output to be more than 2g/L, opening a front end gas flowmeter of each reaction column aeration device, respectively adjusting the ozone inlet flow of each reaction column to be 3L/h, opening a water outlet valve, and opening a tail gas destruction device.
When the catalytic oxidation reaction time of the ozone is 10 minutes, 15 minutes, 20 minutes, 30 minutes, 45 minutes and 60 minutes, respectively sampling at the first sampling port and the second sampling port of each reaction column catalyst layer, respectively testing the chemical oxygen demand and the total organic carbon of the different taken water samples, recording the test results, comparing the catalytic degradation effects of the catalyst A, the catalyst B, the catalyst C, the catalyst D and the catalyst E on organic matters, and screening out the ozone catalyst with higher treatment efficiency.
And after the screening test is finished, closing each water inlet lifting pump, each water inlet front end valve, the ozone generator and the tail gas destroyer in sequence, opening each water outlet front end valve, emptying wastewater in each catalytic oxidation reaction column, opening flanges at the upper end and the lower end of the catalyst layer, taking down the catalyst layer, and inverting the catalyst layer to take out the catalyst.
Claims (4)
1. An ozone catalyst screening device, comprising: the device comprises an ozone generator (1), a catalytic oxidation reaction column group and a tail gas destruction device (3); the catalytic oxidation reaction column group is formed by connecting a plurality of catalytic oxidation reaction columns (4) in parallel; a gas-liquid mixing zone (5), a catalyst layer (6) and an end enclosure (7) are respectively arranged from the lower part to the upper part of the catalytic oxidation reaction column (4); the gas-liquid mixing zone (5) is connected with the catalyst layer (6) in the vertical direction through a flange hole (24) on the flange (18), and the seal head (7) is connected with the catalyst layer (6) in the vertical direction through the flange hole (24) on the flange (18);
the bottom of the gas-liquid mixing zone (5) is provided with an ozone aeration device (9), an ozone generator (1) is connected with the ozone aeration device (9) through a pipeline, and a gas flowmeter (19) is arranged on the connected pipeline; an opening is arranged at the bottom of the gas-liquid mixing area (5) below the ozone aeration device (9) and serves as an ozone inlet (8); a water inlet (10) and a water outlet (11) are arranged on the side wall of the gas-liquid mixing area (5), and the position of the water outlet (11) is opposite to the water inlet (10); a valve (20) is arranged at the front end of the water outlet (11); the water inlet (10) is connected with one end of the valve (20) through a pipeline, the other end of the valve (20) is connected with one end of the water inlet lifting pump (21) through a pipeline, and the other ends of the water inlet lifting pumps (21) are connected into the water inlet tank (22); the bottom of the catalyst layer (6) is provided with a porous supporting overflowing sieve plate (12); a first sampling port (13) is arranged on the side wall of the middle part of the catalyst layer (6), and a valve (20) is arranged at the front end of the first sampling port (13); a second sampling port (14) is arranged on the side wall of the top of the catalyst layer (6), and a valve (20) is arranged at the front end of the second sampling port (14); the bottom of the seal head (7) is provided with a rectangular overflowing sieve plate (15); a water outlet (16) is arranged on the side wall of the seal head (7), and a valve (20) is arranged at the front end of the water outlet (16); the top of the seal head (7) is provided with an exhaust port (17); the outlet pipeline of every gas vent (17) all collects and inserts tail gas destruction device (3) after a pipeline in the catalytic oxidation reaction column group, and the outlet pipe of delivery port (16) and the drainage pipe of outlet (11) all collect and insert drain box (23) after same pipeline in every catalytic oxidation reaction column (4) in the catalytic oxidation reaction column group.
2. The ozone catalyst screening apparatus according to claim 1, wherein: the catalytic oxidation reaction column (4) in the catalytic oxidation reaction column group is made of organic glass, and the outer wall of the catalytic oxidation reaction column (4) is provided with capacity scale marks.
3. The ozone catalyst screening apparatus according to claim 1, wherein: the ozone aeration device (9) is fixed at the center of the bottom of the catalytic oxidation reaction column (4).
4. The ozone catalyst screening apparatus according to claim 1, wherein: round holes are distributed on the porous support overflowing sieve plate (12), and rectangular gaps are arranged on the rectangular overflowing sieve plate (15); the area of the porous supporting overflowing sieve plate (12) is the same as the cross sectional area of the catalyst layer (6), and the area of the rectangular overflowing sieve plate (15) is the same as the cross sectional area of the end enclosure (7).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022257053.5U CN213337504U (en) | 2020-10-12 | 2020-10-12 | Ozone catalyst sieving mechanism |
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| CN202022257053.5U CN213337504U (en) | 2020-10-12 | 2020-10-12 | Ozone catalyst sieving mechanism |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098585A (en) * | 2020-10-12 | 2020-12-18 | 浙江浙能技术研究院有限公司 | Ozone catalyst screening device and evaluation method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112098585A (en) * | 2020-10-12 | 2020-12-18 | 浙江浙能技术研究院有限公司 | Ozone catalyst screening device and evaluation method |
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