CN110935289B - Sealed gas collection absorption system of hydrogen fluoride reacting furnace head and tail - Google Patents
Sealed gas collection absorption system of hydrogen fluoride reacting furnace head and tail Download PDFInfo
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- CN110935289B CN110935289B CN201911225792.1A CN201911225792A CN110935289B CN 110935289 B CN110935289 B CN 110935289B CN 201911225792 A CN201911225792 A CN 201911225792A CN 110935289 B CN110935289 B CN 110935289B
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- furnace
- gas collecting
- gas
- furnace end
- tail
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/1456—Removing acid components
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/0053—Details of the reactor
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J4/00—Feed or outlet devices; Feed or outlet control devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B15/00—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area
- B08B15/04—Preventing escape of dirt or fumes from the area where they are produced; Collecting or removing dirt or fumes from that area from a small area, e.g. a tool
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/19—Fluorine; Hydrogen fluoride
- C01B7/191—Hydrogen fluoride
- C01B7/192—Preparation from fluorspar
Abstract
The invention provides a furnace end and furnace tail sealing gas collection absorption system of a hydrogen fluoride reaction furnace, which comprises a reaction furnace, a furnace tail output spiral, a furnace tail movable static ring, a furnace tail gas collection device and a control unit, wherein the furnace tail gas collection device comprises a furnace tail gas collection cover, a furnace tail gas collection pipe, a furnace tail hydrogen fluoride gas detector, a first absorption tower, a second absorption tower, a first circulation tank, a second circulation tank and a gas collection fan; meanwhile, the hydrogen fluoride gas can be absorbed and conveyed to a production system for utilization. Provides powerful guarantee for the safe production of the company.
Description
Technical Field
The invention relates to the technical field of hydrogen fluoride preparation, in particular to a gas collection and absorption system for sealing the furnace head and the furnace tail of a hydrogen fluoride reaction furnace.
Background
In the process of preparing aluminum fluoride, hydrogen fluoride is one of necessary raw materials, the temperature of the reaction of the hydrogen fluoride and fluorite in a reaction furnace is higher, the internal pressure of the furnace body is larger, the gas energy is also larger, and a movable ring and a static ring are adopted at the discharge position of the furnace tail for sealing, so that the gas leakage is avoided. Then, during long-time production, the risk of gas leakage still inevitably occurs, and particularly, once the gas leaks from the movable ring and the static ring of the furnace tail and the furnace head, the hydrogen fluoride gas can cause danger to a plant area and the surrounding environment, can also cause danger to the life safety of personnel, and does not meet the requirement of environmental protection.
Disclosure of Invention
It is necessary to provide a gas collection and absorption system for sealing the furnace head and the furnace tail of a hydrogen fluoride reaction furnace.
A furnace head and furnace tail sealed gas collection absorption system of a hydrogen fluoride reaction furnace comprises a reaction furnace, a furnace tail output spiral, a furnace tail movable static ring, a furnace tail gas collection device and a control unit, wherein the furnace tail gas collection device comprises a furnace tail gas collection cover, a furnace tail gas collection pipe, a furnace tail hydrogen fluoride gas detector, a first absorption tower, a second absorption tower, a first circulation groove, a second circulation groove and a gas collection fan, the furnace tail gas collection cover is arranged above the movable static ring and is an arc-shaped cover body which is covered above the movable static ring, one end of the furnace tail gas collection pipe is communicated with the furnace tail gas collection cover, the other end of the furnace tail gas collection pipe is connected with a tower kettle gas phase inlet of the first absorption tower, a tower top gas phase outlet of the first absorption tower is connected with a tower kettle gas phase inlet of the second absorption tower through a pipeline, a tower top gas phase outlet of the second absorption tower is connected with the gas collection fan, a tower top liquid phase inlet of the first absorption tower is connected with an outlet of the first absorption tank through a pipeline, the inlet of the first circulation tank is connected with the tower kettle liquid phase outlet of the first absorption tower through a pipeline, the tower top liquid phase inlet of the second absorption tower is connected with the outlet of the second circulation tank through a pipeline, the inlet of the second circulation tank is connected with the tower kettle liquid phase outlet of the second absorption tower through a pipeline, a first circulating pump is further arranged on the outlet pipeline of the first circulation tank, a second circulating pump is further arranged on the outlet pipeline of the second circulation tank, and the control unit is connected with the furnace tail hydrogen fluoride gas detector, the gas collection fan, the first circulating pump and the second circulating pump so as to control the action of the control unit.
Preferably, a furnace end control valve and a master control valve are further arranged on the furnace end gas collecting pipe, the absorption system further comprises a furnace end gas collecting device, the reaction furnace is further provided with a furnace end input screw and a furnace end moving and static ring, the furnace end gas collecting device comprises a furnace end gas collecting hood, a furnace end gas collecting pipe, a furnace end hydrogen fluoride gas detector and a furnace end control valve, the furnace end gas collecting hood is arranged above the furnace end moving and static ring, the furnace end hydrogen fluoride gas detector is arranged on the furnace end gas collecting hood, one end of the furnace end gas collecting pipe is communicated with the furnace end gas collecting hood, the other end of the furnace end gas collecting pipe is connected with the furnace end gas collecting pipe, the furnace end control valve is arranged on the furnace end gas collecting pipe, the furnace end control valve and the master control valve are respectively arranged on the furnace end gas collecting pipe at two ends of the furnace end gas collecting pipe, and the master control valve, the furnace end control valve, the gas collecting fan, the first circulating pump and the second circulating pump are started and are all connected with the control unit.
Preferably, the furnace end gas collecting device comprises two absorption towers, two circulation grooves and a gas collecting pump, and the structure of the furnace end gas collecting device is the same as that of the furnace end gas collecting device.
According to the invention, the gas collection device can effectively absorb leaked hydrogen fluoride gas, so that the harm of harmful gas to the environment and the occupation of staff is reduced; meanwhile, the hydrogen fluoride gas can be absorbed and conveyed to a production system for utilization. Provides powerful guarantee for the safe production of the company.
Drawings
Fig. 1 is a schematic structural diagram of a gas collection and absorption system sealed at the furnace head and the furnace tail of a hydrogen fluoride reaction furnace.
Fig. 2 is a partial cross-sectional view of the exhaust gas collection assembly of fig. 1 taken along a-a.
Fig. 3 is a schematic diagram of another embodiment of a gas collection and absorption system for sealing the furnace head and the furnace tail of a hydrogen fluoride reaction furnace.
Fig. 4 is a schematic view of another embodiment of fig. 3.
Fig. 5 is a control block diagram of the control unit.
In the figure: the reaction furnace 10, the furnace tail output spiral 20, the furnace tail moving and static ring 30, the furnace tail gas collecting device 40, the furnace tail gas collecting hood 41, the furnace tail gas collecting pipe 42, the furnace tail control valve 421, the master control valve 422, the furnace tail hydrogen fluoride gas detector 43, the first absorption tower 44, the second absorption tower 45, the first circulation groove 46, the second circulation groove 47, the gas collecting fan 48, the furnace head input spiral 50, the furnace head moving and static ring 60, the furnace head gas collecting device 70, the furnace head gas collecting hood 71, the furnace head gas collecting pipe 72, the furnace head control valve 721, the furnace head hydrogen fluoride gas detector 73 and the control unit 80.
Detailed Description
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Referring to fig. 1-5, an embodiment of the present invention provides a gas collection absorption system for sealing a furnace head and a furnace tail of a hydrogen fluoride reaction furnace, including a reaction furnace 10, a furnace tail output screw 20, a furnace tail moving and static ring 30, a furnace tail gas collection device 40, and a control unit 80, where the furnace tail gas collection device 40 includes a furnace tail gas collection hood 41, a furnace tail gas collection pipe 42, a furnace tail hydrogen fluoride gas detector 43, a first absorption tower 44, a second absorption tower 45, a first circulation tank 46, a second circulation tank 47, and a gas collection fan 48, the furnace tail gas collection hood 41 is disposed above the moving and static ring, the furnace tail gas collection hood 41 is an arc hood body and is covered above the moving and static ring, one end of the furnace tail gas collection pipe 42 is communicated with the furnace tail gas collection hood 41, the other end is connected to a tower bottom gas phase inlet of the first absorption tower 44, a tower top gas phase outlet of the first absorption tower 44 is connected to a tower gas phase inlet of the second absorption tower 45 through a pipeline, the gas collection fan 48 is connected to the top gas phase outlet of the second absorption tower 45, the top liquid phase inlet of the first absorption tower 44 is connected to the outlet of the first circulation tank 46 through a pipeline, the inlet of the first circulation tank 46 is connected to the bottom liquid phase outlet of the first absorption tower 44 through a pipeline, the top liquid phase inlet of the second absorption tower 45 is connected to the outlet of the second circulation tank 47 through a pipeline, the inlet of the second circulation tank 47 is connected to the bottom liquid phase outlet of the second absorption tower 45 through a pipeline, the first circulation pump is further arranged on the outlet pipeline of the first circulation tank 46, the second circulation pump is further arranged on the outlet pipeline of the second circulation tank 47, and the control unit 80 is connected to the furnace tail hydrogen fluoride gas detector 43, the gas collection fan 48, the first circulation pump and the second circulation pump to control the action of the gas collection fan.
Compared with the prior art, when the leaked hydrogen fluoride gas is found at the movable ring and the static ring at the tail of the furnace, the operation can be stopped, the loss of the reaction furnace 10 is very large for enterprises, several tons of reactants in the furnace body do not completely react, and the hydrogen fluoride gas is still generated and released, so even if the economic loss caused by the operation is not considered, the ongoing reaction in the furnace body cannot be stopped under manual control, once the leakage occurs, only personnel can carry out short-distance maintenance from the outside of the furnace body, and great danger is caused to the physical health of the personnel.
This scheme is through setting up the gas collection device, and normal production does not have any influence when not leaking, and when the emergence is leaked, can start the gas collection device, collects the gas of leaking rapidly to through water spraying absorption gas, avoid gaseous diffusion.
In addition, the device realizes automatic detection, automatic gas collection and automatic absorption through an automatic control system. Whether gas leakage exists or not is detected in real time by a furnace tail hydrogen fluoride gas detector 43 installed on a furnace tail gas collecting hood 41, when gas leakage exists, a signal is given to a control unit 80 by the furnace tail hydrogen fluoride gas detector 43, the control unit 80 controls a gas collecting fan 48, a first circulating pump and a second circulating pump to be started, at the moment, the gas collecting fan 48 sucks and collects gas in the furnace tail gas collecting hood 41, and water spraying absorption is carried out by an absorption tower, so that the leaked gas is collected.
Further, a furnace end control valve 421 and a master control valve 422 are further arranged on the furnace end gas collecting pipe 42, the absorption system further comprises a furnace end gas collecting device 70, the reaction furnace 10 is further provided with a furnace end input spiral 50 and a furnace end moving and static ring 60, the furnace end gas collecting device 70 comprises a furnace end gas collecting hood 71, a furnace end gas collecting pipe 72, a furnace end hydrogen fluoride gas detector 73 and a furnace end control valve 721, the furnace end gas collecting hood 71 is arranged above the furnace end moving and static ring 60, the furnace end hydrogen fluoride gas detector 73 is arranged on the furnace end gas collecting hood 71, one end of the furnace end gas collecting pipe 72 is communicated with the furnace end gas collecting hood 71, the other end of the furnace end gas collecting pipe 72 is connected with the furnace end gas collecting pipe 42, the furnace end control valve 721 is arranged on the furnace end gas collecting pipe 72, the furnace end control valve 422 and the master control valve 422 are respectively arranged on the furnace end gas collecting pipe 42 at two ends of the furnace end gas collecting pipe 72, the gas collecting valve 422, the furnace end control valve 721, the gas collecting valve 48, the first circulating pump 421, the second circulating pump, and the second circulating pump, The second circulation pumps are all connected with the control unit 80 when started.
The furnace end gas collecting hood 71 is communicated with an absorption tower at the furnace tail through a furnace end gas collecting pipe 72, so that the furnace end and the furnace tail can share one set of gas collecting absorption device and can be respectively controlled according to different leakage positions. When the furnace tail leaks, the furnace tail hydrogen fluoride gas detector 43 detects the leaked gas, the control unit 80 controls the master control valve 422, the furnace tail control valve 421, the gas collection fan 48, the first circulating pump and the second circulating pump to start, and the gas collection absorption is carried out on the gas leaked from the furnace tail; when the burner leaks, the burner hydrogen fluoride gas detector 73 detects the leaked gas, and the control unit 80 controls the master control valve 422, the burner control valve 721, the gas collection fan 48, the first circulating pump and the second circulating pump to start, so that the gas leaked from the burner is collected and absorbed; when the furnace tail and the furnace head leak, the furnace tail hydrogen fluoride gas detector 43 and the furnace head hydrogen fluoride gas detector 73 both detect the leaking gas, and at the moment, the control unit 80 controls the master control valve 422, the furnace head control valve 721, the furnace tail control valve 421, the gas collection fan 48, the first circulating pump and the second circulating pump to be started, so that the gas leaked from the furnace tail and the furnace head is collected and absorbed.
In this scheme, these three kinds of leakage circumstances can all realize alone or gas collection simultaneously, absorb, not only have covered the leakage point comprehensively, the gas collection control of also preferred entering in addition takes into account energy-concerving and environment-protective requirement.
Further, the furnace head gas collecting device 70 includes two absorption towers, two circulation tanks, and a gas collecting pump, and has the same structure as the furnace tail gas collecting device 40. The scheme is used as another implementation mode of the gas collection at the furnace head, and can be used independently or in cooperation with the gas collection device 40 at the furnace tail.
The modules or units in the device of the embodiment of the invention can be combined, divided and deleted according to actual needs.
The above disclosure is only illustrative of the preferred embodiments of the present invention, which should not be taken as limiting the scope of the invention, but rather the invention can be embodied in other specific forms without departing from the spirit or essential characteristics thereof. It will be understood by those skilled in the art that all or a portion of the above-described embodiments may be practiced and equivalents thereof may be resorted to as falling within the scope of the invention as claimed. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may include only a single embodiment, and such description is for clarity only, and those skilled in the art will be able to make the description as a whole, and the embodiments may be suitably combined to form other embodiments as will be apparent to those skilled in the art.
Claims (1)
1. The utility model provides a sealed gas collection absorption system of hydrogen fluoride reacting furnace end stove tail which characterized in that: the device comprises a reaction furnace, a furnace tail output screw, a furnace tail movable static ring, a furnace tail gas collecting device and a control unit, wherein the furnace tail gas collecting device comprises a furnace tail gas collecting hood, a furnace tail gas collecting pipe, a furnace tail hydrogen fluoride gas detector, a first absorption tower, a second absorption tower, a first circulating groove, a second circulating groove and a gas collecting fan, the furnace tail gas collecting hood is arranged above the movable static ring and is an arc-shaped hood body which is covered above the movable static ring, one end of the furnace tail gas collecting pipe is communicated with the furnace tail gas collecting hood, the other end of the furnace tail gas collecting pipe is connected with a tower kettle gas phase inlet of the first absorption tower, a tower top gas phase outlet of the first absorption tower is connected with a tower kettle gas phase inlet of the second absorption tower through a pipeline, a tower top gas phase outlet of the second absorption tower is connected with the gas collecting fan, a tower top liquid phase inlet of the first absorption tower is connected with an outlet of the first circulating groove through a pipeline, an inlet of the first circulating groove is connected with a tower kettle liquid phase outlet of the first absorption tower through a pipeline, the tower top liquid phase inlet of the second absorption tower is connected with the outlet of the second circulating tank through a pipeline, the inlet of the second circulating tank is connected with the tower kettle liquid phase outlet of the second absorption tower through a pipeline, a first circulating pump is arranged on the outlet pipeline of the first circulating tank, a second circulating pump is arranged on the outlet pipeline of the second circulating tank, and the control unit is connected with the furnace tail hydrogen fluoride gas detector, the gas collection fan, the first circulating pump and the second circulating pump so as to control the action of the control unit;
the reaction furnace is also provided with a furnace end input screw and a furnace end moving and static ring, the furnace end gas collecting device comprises a furnace end gas collecting hood, a furnace end gas collecting pipe, a furnace end hydrogen fluoride gas detector and a furnace end control valve, the furnace end gas collecting hood is arranged above the furnace end moving and static ring, the furnace end hydrogen fluoride gas detector is arranged on the furnace end gas collecting hood, one end of the furnace end gas collecting pipe is communicated with the furnace end gas collecting hood, the other end of the furnace end gas collecting pipe is connected with the furnace end gas collecting pipe, the furnace end control valve is arranged on the furnace end gas collecting pipe, the furnace end control valve and the furnace end master control valve are respectively arranged on the furnace end gas collecting pipes at two ends of the furnace end gas collecting pipe, and the master control valve, the furnace end control valve, the gas collecting fan, the first circulating pump and the second circulating pump are started and are all connected with the control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911225792.1A CN110935289B (en) | 2019-12-04 | 2019-12-04 | Sealed gas collection absorption system of hydrogen fluoride reacting furnace head and tail |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911225792.1A CN110935289B (en) | 2019-12-04 | 2019-12-04 | Sealed gas collection absorption system of hydrogen fluoride reacting furnace head and tail |
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| Publication Number | Publication Date |
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| CN110935289A CN110935289A (en) | 2020-03-31 |
| CN110935289B true CN110935289B (en) | 2022-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911225792.1A Active CN110935289B (en) | 2019-12-04 | 2019-12-04 | Sealed gas collection absorption system of hydrogen fluoride reacting furnace head and tail |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515107A (en) * | 2011-10-31 | 2012-06-27 | 深圳市新星轻合金材料股份有限公司 | Zero pollution recovery system of safe anhydrous hydrogen fluoride production |
| JP2016160153A (en) * | 2015-03-04 | 2016-09-05 | 孝治 笹山 | Separation and recovery method of hydrogen fluoride and separation and recovery apparatus of hydrogen fluoride |
| CN206787268U (en) * | 2017-04-27 | 2017-12-22 | 甘肃宏汇能源化工有限公司 | A kind of adjusting apparatus of rotary drying stove dynamic and static ring sealing |
| CN109798361A (en) * | 2019-03-05 | 2019-05-24 | 浙江工业大学 | A kind of adaptive static pressure dry gas sealing structure of band axial direction relief valve |
| CN109826960A (en) * | 2019-03-05 | 2019-05-31 | 浙江工业大学 | A kind of axial multilayer runner superposition reflux pumping mechanical seal structure |
| CN208980328U (en) * | 2018-07-31 | 2019-06-14 | 宁夏盈氟金和科技有限公司 | It produces aluminum fluoride and prepares cleaning equipment with hydrogen fluoride gas |
| CN209242677U (en) * | 2018-09-03 | 2019-08-13 | 烟台中瑞化工有限公司 | A kind of hydrogen fluoride production handles the cooling equipment of sulfuric acid gas in the process |
-
2019
- 2019-12-04 CN CN201911225792.1A patent/CN110935289B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102515107A (en) * | 2011-10-31 | 2012-06-27 | 深圳市新星轻合金材料股份有限公司 | Zero pollution recovery system of safe anhydrous hydrogen fluoride production |
| JP2016160153A (en) * | 2015-03-04 | 2016-09-05 | 孝治 笹山 | Separation and recovery method of hydrogen fluoride and separation and recovery apparatus of hydrogen fluoride |
| CN206787268U (en) * | 2017-04-27 | 2017-12-22 | 甘肃宏汇能源化工有限公司 | A kind of adjusting apparatus of rotary drying stove dynamic and static ring sealing |
| CN208980328U (en) * | 2018-07-31 | 2019-06-14 | 宁夏盈氟金和科技有限公司 | It produces aluminum fluoride and prepares cleaning equipment with hydrogen fluoride gas |
| CN209242677U (en) * | 2018-09-03 | 2019-08-13 | 烟台中瑞化工有限公司 | A kind of hydrogen fluoride production handles the cooling equipment of sulfuric acid gas in the process |
| CN109798361A (en) * | 2019-03-05 | 2019-05-24 | 浙江工业大学 | A kind of adaptive static pressure dry gas sealing structure of band axial direction relief valve |
| CN109826960A (en) * | 2019-03-05 | 2019-05-31 | 浙江工业大学 | A kind of axial multilayer runner superposition reflux pumping mechanical seal structure |
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| CN110935289A (en) | 2020-03-31 |
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