CN219231732U - Rotary separation device for hydrogen peroxide production vacuum tail gas - Google Patents
Rotary separation device for hydrogen peroxide production vacuum tail gas Download PDFInfo
- Publication number
- CN219231732U CN219231732U CN202223237132.5U CN202223237132U CN219231732U CN 219231732 U CN219231732 U CN 219231732U CN 202223237132 U CN202223237132 U CN 202223237132U CN 219231732 U CN219231732 U CN 219231732U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- hydrogen peroxide
- peroxide production
- separation device
- tail gas
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to the technical field of hydrogen peroxide tail gas treatment, and particularly provides a rotary separation device for vacuum tail gas in hydrogen peroxide production, which comprises a cylinder, wherein one side of the cylinder is provided with an air inlet, the upper part of the cylinder is provided with an upper seal head, the lower part of the cylinder is provided with a lower seal head, the upper seal head is provided with a steam outlet, and one side of the steam outlet is provided with a vent; the steam outlet is connected with the exhaust pipe, the exhaust pipe stretches into the cylinder body, the other end of the exhaust pipe is connected with the separating cylinder, baffle plates are arranged on the periphery of the separating cylinder, and a liquid outlet is arranged at the bottom of the lower sealing head. Compared with the prior art, the utility model can effectively reduce the organic waste gas generated in the hydrogen peroxide production process and recycle the organic waste gas, greatly reduce the content of organic matters entering the final-stage treatment device from the tail gas, reduce the treatment burden of the final-stage treatment device while ensuring the qualification of indexes, and prolong the service life.
Description
Technical Field
The utility model relates to the technical field of hydrogen peroxide tail gas treatment, and particularly provides a rotary separation device for vacuum tail gas in hydrogen peroxide production.
Background
Most of tail gas recovery devices used in the hydrogen peroxide production device at the present stage are coolers, and the purpose of recovering high-temperature tail gas solvents is achieved through cooling.
Because most of the refrigerant is circulating water, the recovery efficiency is lower, and other refrigerants (such as lithium bromide and the like) are adopted, so that the production cost is greatly increased. In addition, only the number of coolers can be increased to improve the recovery efficiency, and meanwhile, the quality of circulating water and the water delivery quantity are required to be improved, so that the recovery cost is improved.
Particularly, the tail gas of the vacuum dehydration tower of the post-treatment system in the hydrogen peroxide production process is treated, because the system is negative pressure, the tail gas flow rate and other factors are more varied, and the effect can not be achieved by closely reducing the temperature and recycling. Particularly, the emission requirements for volatile organic compounds are more and more strict recently, the emission standard is changed from 120mg/m < 3 > to 60mg/m < 3 >, and more hydrogen peroxide manufacturers begin to pay attention to the treatment of tail gas due to the fact that the initial inlet content is relatively high.
At present, the vacuum tail gas generated in the hydrogen peroxide production process is generally recovered by adopting a method of simply separating a storage tank after being cooled by a cooler, so that the recovery efficiency is low, most of organic solvents can only be emptied along with the tail gas if the organic solvents cannot be recovered, and the manufacturing cost of enterprises is greatly improved. If multi-stage cooling recovery is added, recovery efficiency can be improved, but production cost is increased, and a series of problems such as production sites are increased.
How to carry out simple and high-separation-efficiency transformation on the basis of cooling separation is a problem to be solved by the technicians in the field.
Taking 10 ten thousand tons/year production device as an example, the comprehensive tail gas emission of the device can reach more than 10000mg/m3 (not referring to single tail gas, such as oxidized tail gas, hydrogenated tail gas and the like, the comprehensive tail gas is about 20000m3/h, wherein the tail gas only comprises aromatic hydrocarbon gas), 80% of the tail gas can be separated by using common water cooling, 40kg of organic solvent can be lost per hour if the device is not recovered well, about 0.8 ten thousand yuan is lost per day according to the calculation of single solvent aromatic hydrocarbon (8 month market average price of 8300 yuan/ton), and the emission index is far less than national requirements.
Disclosure of Invention
The utility model aims at the defects of the prior art and provides the rotary separation device for the hydrogen peroxide production tail gas, which has the advantages of reasonable design, simple structure, low production cost and higher separation efficiency.
The technical scheme adopted for solving the technical problems is as follows:
the rotary separation device for the vacuum tail gas in the hydrogen peroxide production comprises a cylinder body and is characterized in that an air inlet is formed in one side of the cylinder body, an upper sealing head is arranged on the upper portion of the cylinder body, a lower sealing head is arranged on the lower portion of the cylinder body, a steam outlet is formed in the upper sealing head, and an air vent is formed in one side of the steam outlet;
the steam outlet is connected with the exhaust pipe, the exhaust pipe stretches into the cylinder body, the other end of the exhaust pipe is connected with the separating cylinder, baffle plates are arranged on the periphery of the separating cylinder, and a liquid outlet is arranged at the bottom of the lower sealing head.
Further, the separating cylinder is provided with an inner wall, a cavity is formed between the inner wall and the outer wall, the lower part of the inner wall is provided with a silk screen, and the silk screen is fixed on the inner wall of the separating cylinder in a segmented mode.
Further, a gas distributor is arranged below the bottom screen of the inner wall of the separation cylinder.
Further, a pressure gauge port is arranged on one side of the upper seal head opposite to the emptying port, and a flange hole for installing a liquid level gauge is arranged on the side wall of the cylinder body.
Further, the flange hole of the liquid level meter is arranged at the bottom of the cylinder body, two positions of the flange hole of the liquid level meter are arranged, and the flange holes of the liquid level meter are arranged at the bottom of the cylinder body up and down.
Further, an access hole is formed in one side of the cylinder body opposite to the flange hole of the liquid level meter.
Further, at least two supports are arranged at the bottom of the lower end enclosure of the cylinder body, and the supports are fixed on the ground through bolts.
Compared with the prior art, the side lathe bed welding tool has the following outstanding beneficial effects:
the gas enters the cylinder through the gas inlet, forms rotational flow along the baffle plate outside the separation cylinder, generates different acceleration due to components with different densities to form speed difference, and has high heavy component acceleration and low light component acceleration.
The gas distributor generates an upward suction negative pressure area to guide the light components with smaller density to move upwards and enter the silk screen, so that small particles with the size of 10-30 mu m can be effectively separated.
Most of the heavy components with higher density flow downwards along the track of the baffle plate and are discharged from the liquid outlet below the tank body, and the limit value of separating liquid drops is usually 100 mu m.
In conclusion, the utility model has simple structure, can effectively reduce and recycle the organic waste gas generated in the hydrogen peroxide production process, greatly reduce the content of organic matters in the tail gas entering the final-stage treatment device, reduce the treatment burden of the final-stage treatment device while ensuring the qualification of indexes, and prolong the service life.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram of a rotary separation device for producing vacuum tail gas from hydrogen peroxide;
FIG. 2 is a top view of a rotary separation device for the vacuum tail gas of hydrogen peroxide production;
FIG. 3 is a cross-sectional view taken at C-C of FIG. 1;
fig. 4 is a sectional view taken along line B-B of fig. 1.
The reference numerals in the drawings denote:
1. the upper sealing head, 2, the cylinder body, 3, the baffle plate, 4, the flange hole of the first liquid level meter, 5, the flange hole of the second liquid level meter, 6, the support, 7, the liquid discharge port, 8, the lower sealing head, 9 and the overhaul port, 10, separating tube outer wall 11, separating tube inner wall 12, gas inlet 13, gas distributor 14, pressure gauge 15, steam outlet 16, vent 17, exhaust pipe 18, and silk screen.
Detailed Description
The utility model will now be further described with reference to the drawings and specific examples, which are not intended to limit the utility model.
In the present utility model, unless otherwise specified, terms such as "upper, lower, left, and right" and "upper, lower, left, and right" are used generically to refer to the upper, lower, left, and right illustrated in the drawings; "inner and outer" means inner and outer relative to the contour of the respective parts themselves.
A preferred embodiment is given below:
as shown in fig. 1-4, a rotary separation device for vacuum tail gas in hydrogen peroxide production in this embodiment includes a cylinder 2, an air inlet 12 is provided on the left side wall of the cylinder 2, an upper seal head 1 is provided on the upper portion, a lower seal head 8 is provided on the lower portion of the cylinder 2, a steam outlet 15 is provided on the upper seal head 2, a vent 16 is provided on the right side of the steam outlet 15, and a pressure gauge 14 is provided on the left side.
The steam outlet 15 is connected with the exhaust pipe 17, the exhaust pipe 17 stretches into the cylinder 2, the other end of the exhaust pipe 17 is connected with the separating cylinder, the baffle plate 3 is arranged around the separating cylinder, and the liquid outlet 7 is arranged at the bottom of the lower sealing head 8.
The separating tube is provided with a separating tube inner wall 11, a cavity is formed between the separating tube inner wall 11 and the separating tube outer wall 10, the lower part of the separating tube inner wall 11 is provided with a silk screen 18, and the silk screen 18 is fixed at the lower part of the separating tube inner wall 11 in a segmented way. A gas distributor 13 is placed under the bottom wire mesh 18 of the inner wall 11 of the separation cylinder.
The flange hole of the liquid level gauge is processed on the right side wall of the cylinder body 2, the flange hole of the liquid level gauge is processed on the bottom of the right side wall of the cylinder body 2, two positions are respectively a first flange hole 4 of the liquid level gauge and a second flange hole 5 of the liquid level gauge, and the upper and lower spacing 600 millimeters of the flange holes of the two positions are arranged on the right side wall of the cylinder body 2.
The left side of the cylinder 2 and the side opposite to the flange hole of the liquid level meter are provided with an access hole 9, the bottom of a lower seal head 8 of the cylinder 2 is provided with four supports 6 in the embodiment, and the supports 6 are fixed on the ground through bolts.
When the rotary separation device for the vacuum tail gas in the hydrogen peroxide production is used, the temperature of the vacuum tail gas in the hydrogen peroxide production is generally 50-58 ℃, so that heavy aromatic hydrocarbon, trioctyl phosphate, acetate, partial water and the like in a hydrogen peroxide production solvent (hereinafter referred to as working solution) exist in a large quantity in the form of steam. Partial solvent can be separated from the tail gas in a cooling condensation mode, the temperature of the hydrogen peroxide is reduced to about 30-50% of the organic solvent carried in the tail gas by mainly taking circulating water as a main cooling way, the temperature of the circulating water is reduced to about 25 ℃, the temperature of general circulating water of enterprises is kept about 25 ℃, the temperature of the circulating water can be 10 ℃ in winter, about 60-80% of the organic solvent carried in the tail gas can be separated by condensing, but the temperature of the circulating water in summer can be above 30 ℃, and the separation effect is very little.
Discharging data without vacuum separator
Through the device, gas enters through the upper gas inlet 12, and forms primary rotational flow through the rotational flow effect formed by the baffle plate 3 along the outer wall, and the acceleration generated by components with different densities is different to form a speed difference, so that heavy components are accelerated fast, and light components are accelerated slowly.
Because the gas distributor 13 is arranged at the bottom of the separation cylinder, an upward suction negative pressure area is generated, light components with smaller density in the two-phase mixed flow are guided to move upwards and enter the separation cylinder, and when the gas flows through the structure of the silk screen 18, liquid drops with the aperture larger than the silk screen 18 are intercepted and separated; if the drop hits the wire mesh 18 directly, it will also be intercepted, and the direct interception may collect a certain number of particles smaller than its pore size. Small particles in the range of 10-30 μm can be effectively separated.
Most of the heavy components with higher density flow downwards along the baffle plate 3 according to a spiral track, are discharged from the liquid outlet 7 below the cylinder 2, and separate larger liquid drops, wherein the limit value of the separated liquid drops is usually 100 mu m.
Data are discharged after the vacuum separator is additionally arranged
The primary separation efficiency can be analyzed to be 80-95% through experiments. The device has simple structure, can effectively reduce the organic waste gas generated in the hydrogen peroxide production process and recycle the organic waste gas, greatly reduces the content of organic matters entering the final-stage treatment device from the tail gas, reduces the treatment burden of the final-stage treatment device while ensuring the qualification of indexes, and prolongs the service life.
The above embodiment is only one of the preferred embodiments of the present utility model, and the ordinary changes and substitutions made by those skilled in the art within the scope of the present utility model should be included in the scope of the present utility model.
Claims (7)
1. The rotary separation device for the vacuum tail gas in the hydrogen peroxide production comprises a cylinder body and is characterized in that an air inlet is formed in one side of the cylinder body, an upper sealing head is arranged on the upper portion of the cylinder body, a lower sealing head is arranged on the lower portion of the cylinder body, a steam outlet is formed in the upper sealing head, and an air vent is formed in one side of the steam outlet;
the steam outlet is connected with the exhaust pipe, the exhaust pipe stretches into the cylinder body, the other end of the exhaust pipe is connected with the separating cylinder, baffle plates are arranged on the periphery of the separating cylinder, and a liquid outlet is arranged at the bottom of the lower sealing head.
2. The rotary separation device for vacuum exhaust gas from hydrogen peroxide production according to claim 1, wherein the separation cylinder is provided with an inner wall, a cavity is formed between the inner wall and the outer wall, the lower part of the inner wall is provided with a silk screen, and the silk screen is fixed on the inner wall of the separation cylinder in a segmented manner.
3. A rotary separation device for vacuum off-gas from hydrogen peroxide production as defined in claim 2 wherein a gas distributor is positioned under the bottom wire mesh of the inner wall of said separation cylinder.
4. The rotary separation device for vacuum exhaust gas in hydrogen peroxide production according to claim 3, wherein a pressure gauge port is arranged on one side of the upper end socket opposite to the vent port, and a flange hole for installing a liquid level gauge is arranged on the side wall of the cylinder.
5. The rotary separation device for vacuum exhaust gas from hydrogen peroxide production of claim 4, wherein said gauge flange holes are provided at the bottom of the cylinder, and two gauge flange holes are provided at the bottom of the cylinder, two gauge flange holes being provided up and down.
6. The rotary separation device for vacuum exhaust gas from hydrogen peroxide production of claim 5, wherein a side of the cylinder opposite to the flange hole of the level gauge is provided with an access opening.
7. The rotary separation device for vacuum exhaust gas from hydrogen peroxide production according to claim 1, wherein at least two supports are arranged at the bottom of the lower end enclosure of the cylinder, and the supports are fixed on the ground through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223237132.5U CN219231732U (en) | 2022-12-05 | 2022-12-05 | Rotary separation device for hydrogen peroxide production vacuum tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223237132.5U CN219231732U (en) | 2022-12-05 | 2022-12-05 | Rotary separation device for hydrogen peroxide production vacuum tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219231732U true CN219231732U (en) | 2023-06-23 |
Family
ID=86845419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223237132.5U Active CN219231732U (en) | 2022-12-05 | 2022-12-05 | Rotary separation device for hydrogen peroxide production vacuum tail gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219231732U (en) |
-
2022
- 2022-12-05 CN CN202223237132.5U patent/CN219231732U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN219231732U (en) | Rotary separation device for hydrogen peroxide production vacuum tail gas | |
| CN206694209U (en) | A kind of water-ring vacuum pump condensing unit | |
| CN216198974U (en) | Water circulation device of water ring vacuum pump | |
| CN213110764U (en) | Low boiling point material storage system | |
| CN218821743U (en) | Solvent condensate recovery device for vacuum system | |
| CN210261141U (en) | Middle-size and small-size ammonia recovery unit | |
| CN211450363U (en) | Device for safely recycling air separation low-temperature residual liquid | |
| CN219964906U (en) | Active carbon steam high-efficient desorption device | |
| CN220959701U (en) | Emptying pipe condensate water collecting device | |
| CN220834571U (en) | Multistage steam-water mixture separation equipment with bottom air inlet and top air outlet | |
| CN201572539U (en) | Oil gas recovery device | |
| CN214059892U (en) | Tertiary oil gas recovery device for gas station | |
| CN219764567U (en) | Organic liquid dehydrogenation liquid separator | |
| CN212893938U (en) | Containing CO2CO of industrial tail gas2Refining and extracting system | |
| CN213100869U (en) | Continuous type solvent recovery tower | |
| CN210656981U (en) | Slag flushing water recycling system for silicon-manganese alloy | |
| CN220489767U (en) | Organic volatile solvent condensation recovery unit | |
| CN209596890U (en) | A kind of desulfurizing tower | |
| CN217110569U (en) | Metal condenser | |
| CN211302143U (en) | Chemical reagent purification device | |
| CN217549322U (en) | Device for improving oil mist separation | |
| CN216083050U (en) | Transformer outage detection case | |
| CN220398276U (en) | Steam condensation recycling system | |
| CN214299255U (en) | Oil gas recovery membrane type separation device | |
| CN211422859U (en) | Drainage device for polyolefin catalyst mother liquor recovery vacuum pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |