CN217068312U - Water control equipment for blast furnace gas - Google Patents

Water control equipment for blast furnace gas Download PDF

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Publication number
CN217068312U
CN217068312U CN202122956013.4U CN202122956013U CN217068312U CN 217068312 U CN217068312 U CN 217068312U CN 202122956013 U CN202122956013 U CN 202122956013U CN 217068312 U CN217068312 U CN 217068312U
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China
Prior art keywords
water
unit
coal gas
gas
cooling
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CN202122956013.4U
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Chinese (zh)
Inventor
禚玉群
任雯
王涛
刘宁
李亚斌
李淑慧
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Tsinghua University
Shanxi Research Institute for Clean Energy of Tsinghua University
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Tsinghua University
Shanxi Research Institute for Clean Energy of Tsinghua University
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Abstract

The utility model discloses a accuse water equipment for blast furnace gas, this accuse water equipment are including consecutive cooling unit, first dewatering unit, heating element and second dewatering unit, the cooling unit has coal gas entry and cooling back coal gas export, coal gas export and first water export after first dewatering unit has cooling back coal gas entry, first dewatering, coal gas export, second water export after second dewatering unit has first water entry, second dewatering. The blast furnace gas is treated by adopting the water control equipment, the blast furnace gas firstly enters the cooling unit, is cooled and then enters the first water removal unit for continuous and efficient dehydration, and the water containing the gas obtained by removal periodically enters the second water removal unit for further gas-liquid separation, so that the gas leakage can be avoided. In addition, the water control equipment is easy to integrate with the front-end process tank body, has compact and attractive structure and small occupied space, and can not increase resistance for the whole operation of the system.

Description

Water control equipment for blast furnace gas
Technical Field
The utility model relates to a chemical industry field particularly, the utility model relates to a accuse water equipment for blast furnace gas.
Background
The domestic blast furnace gas desulfurization work is in the starting stage, and most of various technical processes are exploring the verification period. Taking a hydrolysis catalysis and dry absorption process as an example, in the early laboratory test and the later engineering application verification, it is found that if too much blast furnace gas liquid free water is not controlled, the hydrolysis catalyst and the dry desulfurizing agent in a gas desulfurization process device are obviously affected, most of the prior art has no targeted measures, and a small part of systems with problems are supplemented with a mechanical water removal device later. However, the following problems exist because the design is not overall and is not designed specifically:
1. the dewatering performance of the dewatering equipment is poor;
2. the occupied area of the equipment is large;
3. active control and expandable control cannot be realized;
4. the drainage structure is unreasonable, and has coal gas leakage risk and great potential safety hazard.
In view of the above, there is still a need for an improved water control apparatus for blast furnace gas.
SUMMERY OF THE UTILITY MODEL
The present invention aims at solving at least one of the technical problems in the related art to a certain extent.
In one aspect of the present invention, the utility model provides a water control device for blast furnace gas. According to an embodiment of the present invention, the water control apparatus includes a cooling unit, a first water removal unit, a heating unit, and a second water removal unit, which are connected in sequence; the cooling unit is provided with a coal gas inlet and a cooled coal gas outlet; the first water removal unit is provided with a cooled coal gas inlet, a first water removal coal gas outlet and a first water outlet, and the cooled coal gas inlet is connected with the cooled coal gas outlet; the heating unit is connected with the first dehydrated coal gas outlet; the second water removal unit is provided with a first water inlet, a second water removal coal gas outlet and a second water outlet, and the first water inlet is connected with the first water outlet.
The blast furnace gas is treated by adopting the water control equipment, the blast furnace gas firstly enters the cooling unit, is cooled and then enters the first water removal unit for continuous high-efficiency dehydration, and the water containing the gas obtained by removal periodically enters the second water removal unit for further gas-liquid separation, so that the gas leakage can be avoided. Meanwhile, the heating unit can heat the coal gas obtained by the separation of the first water removal unit so as to meet the requirements of other processes at the later stage on the temperature of the coal gas. In addition, the water control equipment is easy to integrate with the front-end process tank body, has compact and attractive structure and small occupied space, and can not increase resistance for the whole operation of the system.
Optionally, the cooling unit includes an air cooling device, and the air cooling device is a variable frequency cooling fan.
Optionally, the cooling unit includes a water cooling device, and the water cooling device is a tube array type water cooling device, a coil tube type water cooling device, or a shell type water cooling device.
Optionally, the first water removal unit comprises a spin-drying tray.
Optionally, the cyclone water tray is a plate-type cyclone dewatering tray, a barrel-type cyclone dewatering tray or a baffled cyclone dewatering tray.
Optionally, the second water removal unit comprises a gas-liquid separation device, which is a gravity gas-liquid separation device, a mechanical centrifugal gas-liquid separation device, or a cyclone centrifugal gas-liquid separation device.
Optionally, the second water removal unit further has a pressure relief port.
Optionally, the water control apparatus further comprises: and the pretreatment unit is arranged at the front end of the cooling unit and is connected with the coal gas inlet.
Optionally, the pretreatment unit comprises at least one of a filtration tank, a protectant tank, a surge tank, a dedusting apparatus, and a dechlorination apparatus.
Optionally, the water control apparatus further comprises: and the heating unit is connected with the first water-removed coal gas outlet.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a schematic structural view of a water control device for blast furnace gas according to an embodiment of the present invention.
Reference numerals:
10-a cooling unit for cooling the liquid,
20-a first water removal unit, 21-a first water outlet,
30-a second water removal unit, 31-a first water inlet, 32-a second water-removed coal gas outlet, 33-a second water outlet, 34-a pressure release port,
40-heating unit.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present application, unless expressly stated or limited otherwise, the first feature may be directly on or directly under the second feature or indirectly via intermediate members. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
The inventor finds that the water control process of the existing blast furnace gas desulfurization system does not have corresponding special supporting equipment in the research of the existing blast furnace gas water control process, if the existing gas-liquid separation equipment on other occasions is only directly used, the treatment capacity is limited, water can be removed only but not controlled, the coexistence integration level is low, the automation degree is low, and the like, and the market demand can not be met. And the utility model provides a solution can satisfy the accuse water technological index that coal gas desulfurization system desulfurization process required to there are advantages such as the moisture broad width is controllable, the integrated level is high, degree of automation is high, safe and reliable, surely will play the key role and embody huge economic value in blast furnace gas desulfurization system, but also can expand other use scenes of similar demand.
In one aspect of the present invention, the present invention provides a water control device for blast furnace gas. Referring to fig. 1, according to an embodiment of the present invention, the water control apparatus includes a cooling unit 10, a first water removal unit 20, and a second water removal unit 30, which are connected in sequence. Specifically, the cooling unit 10 has a gas inlet and a cooled gas outlet; the first water removal unit 20 is provided with a cooled coal gas inlet, a first water removed coal gas outlet and a first water outlet 21, and the cooled coal gas inlet is connected with the cooled coal gas outlet; the heating unit 40 is connected with the first water-removed coal gas outlet of the first water-removing unit 20; the second water removal unit 30 has a first water inlet 31, a second water-removed coal gas outlet 32, and a second water outlet 33, and the first water inlet 31 is connected to the first water outlet 21.
A water control apparatus for blast furnace gas according to an embodiment of the present invention is further described in detail below.
According to some embodiments of the utility model, cooling unit 10 includes the air cooling plant, and the air cooling plant is frequency conversion cooling blower, cools off blast furnace gas through the air-cooled mode promptly. Therefore, the linear adjustment of the cooling temperature can be realized, and the saturation temperature of the coal gas can be controlled. According to other embodiments of the present invention, the cooling unit 20 may also include a water cooling device, i.e. the blast furnace gas is cooled by water cooling. Specifically, the water cooling device may be a shell-and-tube water cooling device, a coil-and-tube water cooling device, or a shell-and-tube water cooling device.
According to some embodiments of the present invention, the first water removal unit 20 comprises a spin-drying tray. Thereby, continuous and high-efficiency dehydration of the blast furnace gas can be ensured. In some embodiments, the cyclone dewatering plate is a variable centrifugal dewatering plate, and the rotation angle of the dewatering plate can be adjusted according to the gas flow, so that the gas-liquid mixture is in an efficient flow velocity range at any time, and higher centrifugal dewatering efficiency is guaranteed. In addition, in some embodiments, the angles of the diversion trench and the gas outlet pipe on the tank wall of the first water removal unit 20 are designed to ensure that the removed liquid water does not secondarily entrain the dehydrated gas.
According to some embodiments of the utility model, above-mentioned whirl tray can be board-like whirl dehydration dish, cylinder whirl dehydration dish or baffling formula whirl dehydration dish.
According to some embodiments of the present invention, the second water removal unit 30 comprises a gas-liquid separation device, which is a gravity type gas-liquid separation device, a mechanical centrifugal gas-liquid separation device, or a cyclone centrifugal gas-liquid separation device. Therefore, the gas separation effect in the gas-containing water can be further improved, and the water separated in the second water removal unit 30 can be discharged.
According to some embodiments of the present invention, the second water removal unit 30 also has a pressure relief port 34. Therefore, the pressure in the second water removal unit 30 can be further balanced, and gas leakage is avoided.
In some embodiments of the present invention, each inlet and outlet of the second water removing unit 30 is electrically controlled, and can be automatically started or stopped according to the actual operation state of the system.
Additionally, the utility model discloses a accuse water equipment can also further include: a pre-processing unit (not shown in the drawings). The pretreatment unit is arranged at the front end of the cooling unit and is connected with the coal gas inlet. The specific type of the pretreatment unit is not particularly limited, and may be selected according to the specific needs of the process. According to some embodiments of the present disclosure, the pre-treatment unit may include at least one of a filtration tank, a protectant tank, a buffer tank, a dust removal apparatus, a dechlorination apparatus.
According to some embodiments of the present invention, the heating unit 40 may be an explosion-proof electric heater or a steam heater.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the scope of the present invention.

Claims (9)

1. A water control device for blast furnace gas is characterized by comprising a cooling unit, a first water removal unit, a heating unit and a second water removal unit which are sequentially connected;
the cooling unit is provided with a coal gas inlet and a cooled coal gas outlet;
the first water removal unit is provided with a cooled coal gas inlet, a first water removal coal gas outlet and a first water outlet, and the cooled coal gas inlet is connected with the cooled coal gas outlet;
the heating unit is connected with the first dehydrated coal gas outlet;
the second water removal unit is provided with a first water inlet, a second water removal coal gas outlet and a second water outlet, and the first water inlet is connected with the first water outlet.
2. The water control apparatus of claim 1, wherein the cooling unit comprises an air cooling device, the air cooling device being a variable frequency cooling fan.
3. The water control apparatus of claim 1, wherein the cooling unit comprises a water cooling device, the water cooling device being a shell and tube water cooling device, a coil water cooling device, or a shell water cooling device.
4. The water control apparatus of claim 1, wherein the first water removal unit comprises a spin-drying tray.
5. The water control apparatus of claim 4, wherein the spin tray is a plate-type spin-drying tray, a cartridge-type spin-drying tray, or a baffled spin-drying tray.
6. The water control apparatus of claim 1, wherein the second water removal unit comprises a gas-liquid separation device, the gas-liquid separation device being a gravity gas-liquid separation device, a mechanical centrifugal gas-liquid separation device, or a cyclonic centrifugal gas-liquid separation device.
7. The water control apparatus of claim 1 wherein the second water removal unit further has a pressure relief port.
8. The water control apparatus of claim 1, further comprising: and the pretreatment unit is arranged at the front end of the cooling unit and is connected with the coal gas inlet.
9. The water control apparatus of claim 8, wherein the pre-treatment unit comprises at least one of a filtration tank, a protectant tank, a surge tank, a dust removal apparatus, a dechlorination apparatus.
CN202122956013.4U 2021-11-26 2021-11-26 Water control equipment for blast furnace gas Active CN217068312U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202122956013.4U CN217068312U (en) 2021-11-26 2021-11-26 Water control equipment for blast furnace gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202122956013.4U CN217068312U (en) 2021-11-26 2021-11-26 Water control equipment for blast furnace gas

Publications (1)

Publication Number Publication Date
CN217068312U true CN217068312U (en) 2022-07-29

Family

ID=82539409

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202122956013.4U Active CN217068312U (en) 2021-11-26 2021-11-26 Water control equipment for blast furnace gas

Country Status (1)

Country Link
CN (1) CN217068312U (en)

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