CN112124972A - Device for unloading demercuration agent in demercuration tower - Google Patents
Device for unloading demercuration agent in demercuration tower Download PDFInfo
- Publication number
- CN112124972A CN112124972A CN201910547878.XA CN201910547878A CN112124972A CN 112124972 A CN112124972 A CN 112124972A CN 201910547878 A CN201910547878 A CN 201910547878A CN 112124972 A CN112124972 A CN 112124972A
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- China
- Prior art keywords
- demercuration
- separation tank
- agent
- unloading
- tower
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/04—Conveying materials in bulk pneumatically through pipes or tubes; Air slides
- B65G53/24—Gas suction systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/0027—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions
- B01D46/0032—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with additional separating or treating functions using electrostatic forces to remove particles, e.g. electret filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G53/00—Conveying materials in bulk through troughs, pipes or tubes by floating the materials or by flow of gas, liquid or foam
- B65G53/34—Details
- B65G53/58—Devices for accelerating or decelerating flow of the materials; Use of pressure generators
Abstract
The invention provides a device for unloading mercury removing agent in a mercury removing tower, which comprises: a separation tank; the air pump is communicated with the separation tank and is used for forming negative pressure in the separation tank; and the first end of the suction pipe is communicated with the separation tank, and the second end of the suction pipe is used for extending into the demercuration tower. The technical problem that the unloading process of the mercury removing agent in the mercury removing tower in the prior art is uncontrollable is solved through the invention.
Description
Technical Field
The invention relates to the technical field of natural gas demercuration treatment, in particular to a device for unloading a demercuration agent in a demercuration tower.
Background
Natural gas usually contains trace elements of mercury. The mercury is not only toxic, but also corrosive, and the existence of the mercury brings potential safety hazards to gas field production. In order to eliminate the potential safety hazard of mercury, mercury removal treatment is required to be carried out on the mercury-containing natural gas. The demercuration treatment of mercury-containing natural gas is generally carried out in a demercuration column. Referring to fig. 1, fig. 1 is a schematic structural diagram of a demercuration tower, in which a demercuration layer 11 is disposed in a demercuration tower 10, and the demercuration layer 11 is filled with a granular demercuration agent. During the demercuration process, the mercury-containing natural gas enters the demercuration tower 10 and flows through the demercuration layer 11, and the mercury element in the mercury-containing natural gas is adsorbed by the demercuration agent.
After a certain period of operation of the mercury remover, failure may occur. After the demercuration agent fails, it needs to be unloaded from the demercuration tower. At present, when the mercury removing agent is unloaded, the mercury removing agent is generally enabled to flow out through an opening at the bottom of the mercury removing tower under the action of the dead weight. In the unloading method, the mercury removing agent falls and flows out under the action of self weight, and the unloading process is uncontrollable.
Disclosure of Invention
The invention aims to provide a device for unloading mercury removing agent in a mercury removing tower, which can relieve the technical problem that the unloading process of mercury removing agent in the mercury removing tower in the prior art is uncontrollable.
The above object of the present invention can be achieved by the following technical solutions:
the invention provides a device for unloading mercury removing agent in a mercury removing tower, which comprises: a separation tank; the air pump is communicated with the separation tank and is used for forming negative pressure in the separation tank; and the first end of the suction pipe is communicated with the separation tank, and the second end of the suction pipe is used for extending into the demercuration tower.
In a preferred embodiment, the device further comprises a speed reducing cylinder, wherein the speed reducing cylinder is fixed at the top in the separation tank, and the bottom end of the speed reducing cylinder is provided with an opening; the first end of the suction pipe is connected to the top end of the speed reducing cylinder, and the horizontal cross-sectional area of the speed reducing cylinder is larger than the cross-sectional area of the pipe opening of the suction pipe.
In a preferred embodiment, the horizontal cross-sectional area of the reduction cylinder is gradually reduced from the upper end to the lower end.
In a preferred embodiment, the side wall of the reduction cylinder is provided with a plurality of communication holes which can obstruct the mercury removing agent and allow dust to pass through.
In a preferred embodiment, the tank wall of the separation tank is provided with an exhaust hole communicated with the air pump, and the exhaust hole is provided with a screen.
In a preferred embodiment, the tank wall of the separation tank is provided with an exhaust hole communicated with the air pump, and the exhaust hole is arranged at the upper part of the separation tank.
In a preferred embodiment, the device comprises a dust filter arranged between the separation tank and the air pump, the air inlet of which is in communication with the separation tank and the air outlet of which is in communication with the air pump.
In a preferred embodiment, the separation tank includes an equal-diameter portion and a tapered portion connected to a lower end of the equal-diameter portion, and a horizontal sectional area of the tapered portion is gradually reduced from an upper end to a lower end.
In a preferred embodiment, the bottom of the separation tank is provided with a discharge opening, and the discharge opening is provided with a control valve.
In a preferred embodiment, the straw is made of a PVC fiber steel wire pipe.
The invention has the characteristics and advantages that: when the device provided by the invention is used for unloading the demercuration agent in the demercuration tower, the second end of the suction pipe is extended into a preset position in the demercuration tower; the air pump enables negative pressure to be generated in the separating tank, and under the action of pressure difference, the demercuration agent in the demercuration tower enters the suction pipe and enters the separating tank through the suction pipe, so that the demercuration agent at a set position in the demercuration tower is unloaded into the separating tank. The unloading of the demercuration agent is carried out under the action of negative pressure in the separation tank, and the speed of unloading the demercuration agent from the demercuration tower can be adjusted by controlling the magnitude of the negative pressure value in the separation tank; the unloading position can be controlled by adjusting the position of the second end of the suction pipe on the demercuration tower.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
FIG. 1 is a schematic diagram of a demercuration column;
fig. 2 is a schematic diagram of the device for unloading the mercury removing agent in the mercury removing tower provided by the invention.
The reference numbers illustrate: 10. a demercuration tower; 11. removing a mercury layer; 12. a manhole; 20. a separation tank; 21. an equal diameter part; 22. a tapered portion; 31. an exhaust hole; 311. screening a screen; 32. a discharge outlet; 321. a control valve; 322. a collection barrel; 40. a straw; 41. a first end; 42. a second end; 43. a suction pipe joint; 50. an air pump; 60. a dust filter; 70. a speed reduction cylinder 71 and a communication hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
When the demercuration tower 10 is used for demercuration treatment of natural gas, the demercuration agent loses efficacy after working for a period of time, and in order to ensure the demercuration effect, the demercuration agent which loses efficacy needs to be replaced. To this end, the invention provides a device for unloading a demercuration agent in a demercuration tower, as shown in fig. 2, comprising: a separation tank 20; an air pump 50 communicating with the separation tank 20 for forming a negative pressure in the separation tank 20; a suction pipe 40, whose first end 41 communicates with the separation tank 20 and whose second end 42 is intended to project into the demercuration tower 10. The demercuration tower 10 is generally provided with a manhole 12, and when the device is used for unloading the demercuration agent in the demercuration tower 10, the second end 42 of the suction pipe 40 can be extended to a preset position in the demercuration tower 10 through the manhole 12; the air pump 50 generates negative pressure in the separation tank 20, and under the action of the pressure difference, the demercuration agent in the demercuration tower 10 enters the suction pipe 40 and enters the separation tank 20 through the suction pipe 40, so that the demercuration agent at the set position in the demercuration tower 10 is unloaded into the separation tank 20. The discharging of the demercuration agent is carried out under the action of negative pressure in the separation tank 20, and the discharging speed of the demercuration agent from the demercuration tower 10 can be adjusted by controlling the magnitude of the negative pressure in the separation tank 20; the unloading position can be controlled by adjusting the position of the second end 42 of the suction pipe 40 on the demercuration tower 10.
The inventors have found that the failure of the mercury removing agent at different locations in the mercury removal column 10 is not completely consistent; the mercury removing agent which is not failed or is not completely failed is reused, so that the cost of mercury removal can be saved. However, in the prior art, when the mercury removing agent in the mercury removing tower 10 is unloaded, the mercury removing agent generally falls and flows out from the mercury removing tower 10 under the action of its own weight, and the mercury removing agents at different positions in the mercury removing tower 10 are mixed together during and after the outflow process, so that the mercury removing agents at different positions cannot be separately treated and utilized. When the device provided by the invention is used, an operator can operate the suction pipe 40 to enable the second end 42 of the suction pipe 40 to extend into any position in the demercuration tower 10, so as to realize the designation of the position for implementing unloading.
The device is used for unloading the mercury removing agent at the set position in the mercury removing tower 10, and the failure condition of the mercury removing agent at the set position in the mercury removing tower 10 can be known by analyzing the taken mercury removing agent, so that the rule of the failure conditions of the mercury removing agents at different positions in the mercury removing tower 10 can be known.
In the maintenance operation of the demercuration tower 10, the demercuration agent in the demercuration tower 10 can be divided into a plurality of areas according to the above rules, and during unloading, the demercuration agent is unloaded in different areas, and the demercuration agent in each area is respectively treated or reused. According to the above rule, the mercury removing agent at the designated position in the mercury removing tower 10 can be unloaded, and then a new mercury removing agent is filled for supplement, so as to ensure good mercury removing effect.
In the prior art, when the demercuration agent falls and flows out from the demercuration tower 10 under the action of self weight, a large amount of dust can be diffused outwards, and adverse effects are caused to the surrounding environment and workers. When the device provided by the invention is used for unloading, the mercury removing agent and the dust carried by the mercury removing agent move along the suction pipe 40 and then enter the separation tank 20, so that the outward diffusion of the dust is favorably reduced.
Preferably, the first end 41 of the suction pipe 40 is arranged at the top of the separation tank 20, and the demercuration agent and the dust carried by the demercuration agent are conveyed into the separation tank 20 from the suction pipe 40, and the demercuration agent falls down to the bottom of the separation tank 20 under the action of the self-gravity due to the granular demercuration agent, so that the demercuration agent is separated from the dust.
In order to discharge the demercuration agent from the separation tank 20 conveniently, a discharge outlet 32 is arranged at the bottom of the separation tank 20, a control valve 321 is arranged on the discharge outlet 32, and after the demercuration agent at a set position in the demercuration tower 10 is unloaded into the separation tank 20, the control valve 321 is opened, so that the demercuration agent can be taken out from the discharge outlet 32. Furthermore, the device provided by the invention also comprises a collecting barrel 322, wherein the collecting barrel 322 is arranged below the discharge opening 32, and the mercury removing agent can fall into the collecting barrel 322 through the discharge opening 32.
In order to facilitate the movement of the demercuration agent to the bottom of the separation tank 20, the inventor modifies the structure of the separation tank 20: as shown in fig. 2, the separation tank 20 includes an equal-diameter portion 21 and a tapered portion 22 connected to the lower end of the equal-diameter portion 21, and the horizontal cross-sectional area of the tapered portion 22 gradually decreases from the upper end to the lower end, so that the inner wall of the tapered portion 22 is inclined from the outside to the inside, thereby facilitating the movement of the mercury removing agent along the inner wall of the tapered portion 22 to the bottom for easy discharge. Preferably, the constant diameter portion 21 has a cylindrical shape, and the tapered portion 22 has an inverted truncated cone shape.
In an embodiment of the present invention, the apparatus includes a deceleration cylinder 70 disposed at the top of the separation tank 20, an end cover is disposed at the top end of the deceleration cylinder 70, a suction pipe connector 43 communicated with the inner cavity of the deceleration cylinder 70 is disposed on the end cover, the suction pipe connector 43 passes through the top wall of the separation tank 20 and is fixedly connected with the separation tank 20, and the bottom end of the deceleration cylinder 70 is open towards the bottom of the separation tank 20. The first end 41 of the suction pipe 40 is connected to the suction nozzle 43, and the horizontal sectional area of the reduction cylinder 70 is larger than the nozzle sectional area of the suction pipe 40. The demercuration agent and the dust carried by the demercuration agent enter the speed reducing cylinder 70 from the suction pipe 40, and the flow speed of the demercuration agent and the dust carried by the demercuration agent is reduced due to the enlarged cross section of the channel, so that the dust can be separated from the demercuration agent, and the subsequent treatment of the demercuration agent is facilitated; after the dust is separated, the dust can be discharged through the air outlet 31 of the separation tank 20, which is communicated with the air pump 50, under the action of the air pump 50.
Furthermore, the side wall of the reduction cylinder 70 is provided with a plurality of communication holes 71, and the communication holes 71 can block the mercury removing agent and allow dust to pass through. After entering the reduction cylinder 70, the mercury removing agent and the dust carried by the mercury removing agent perform outward diffusion movement under the action of lower air pressure in the separation tank 20, and the mercury removing agent impacts the side wall of the reduction cylinder 70 and is blocked by the side wall of the reduction cylinder 70 to turn downwards to fall to the bottom of the separation tank 20 through the bottom end opening of the reduction cylinder 70; the dust passes through the communication hole 71 and passes through the side wall of the speed reducing cylinder 70, so that the dust can be better separated from the mercury removing agent.
Furthermore, the deceleration cylinder 70 is in the shape of an inverted round table, the horizontal cross-sectional area of the deceleration cylinder gradually decreases from the upper end to the lower end, so that the inner wall of the deceleration cylinder 70 inclines from the upper end to the lower end from outside to inside to guide the mercury removing agent to change the direction from outside to inside when moving from top to bottom, and the dust directly moves outwards to pass through the side wall of the deceleration cylinder 70, which is more favorable for separating the dust from the mercury removing agent.
In order to facilitate the dust to be discharged out of the separation tank 20, the exhaust hole 31 of the separation tank 20, which is communicated with the air pump 50, is disposed at the upper portion of the separation tank 20, and when the air pump 50 is in operation, the separation tank 20 has an air flow moving towards the exhaust hole 31, and the dust can flow to the exhaust hole 31 along with the air flow. The vent hole 31 is formed in the upper portion of the separation tank 20 to reduce deposition of dust toward the bottom of the separation tank 20. Preferably, the position of the exhaust hole 31 is higher than the lower end of the reduction cylinder 70, so that dust can move upwards into the exhaust hole 31 under the action of air flow, and can be separated from the mercury removing agent more easily.
Further, the exhaust hole 31 is provided with a screen 311, the screen 311 is used for blocking the mercury removing agent and allowing dust to pass through, so as to prevent smaller particles of the mercury removing agent from entering the exhaust hole 31 under the action of air flow, and to help to retain the mercury removing agent in the separation tank 20. In some embodiments, the screen 311 is provided with circular holes having a diameter ranging from 0.2cm to 0.4cm, preferably 0.3 cm.
In one embodiment of the present invention, the apparatus includes a dust filter 60 disposed between the separation tank 20 and the air pump 50, and the air inlet thereof is communicated with the air discharge hole 31 of the separation tank 20 through a pipe, and the air outlet thereof is communicated with the air pump 50. The dust filter 60 has a filter bag therein, and the air pump 50 drives the generated air flow to flow through the filter bag via the air outlet 31 and then to the air pump 50. The dust in the air flow can be filtered by the filter bag and then discharged to the outside through the air pump 50, so that the influence on the surrounding environment can be reduced. When the device provided by the invention unloads the mercury removing agent, dust is limited to flow in the set channel, so that the dust is prevented from diffusing to the space outside the device, and a better protection effect is achieved on the environment. Preferably, the filter material filled in the filter bag is an antistatic filter material; specifically, the filter material comprises filter material fibers and conductive fibers, so that the filter material has conductive performance, and dust can be better filtered.
In an embodiment of the present invention, the straw 40 is made of PVC (Polyvinyl chloride) fiber steel wire, so that the straw 40 has high hardness, high firmness, is not easy to deform, is convenient to extend into the demercuration tower 10, provides a smooth flow channel for airflow and demercuration agent, and has the characteristic of light weight, and is convenient to operate.
The above description is only a few embodiments of the present invention, and those skilled in the art can make various changes or modifications to the embodiments of the present invention according to the disclosure of the application document without departing from the spirit and scope of the present invention.
Claims (10)
1. An apparatus for unloading a demercuration agent in a demercuration column, comprising:
a separation tank;
the air pump is communicated with the separation tank and is used for forming negative pressure in the separation tank;
and the first end of the suction pipe is communicated with the separation tank, and the second end of the suction pipe is used for extending into the demercuration tower.
2. The device for unloading mercury-removing agent from a mercury-removing column according to claim 1, further comprising a deceleration cylinder fixed to the top of the separation tank, the deceleration cylinder having an opening at its bottom end;
the first end of the suction pipe is connected to the top end of the speed reducing cylinder, and the horizontal cross-sectional area of the speed reducing cylinder is larger than the cross-sectional area of the pipe opening of the suction pipe.
3. The device for unloading mercury-removing agent from mercury-removing column according to claim 2, wherein the horizontal cross-sectional area of the deceleration cylinder decreases from the upper end to the lower end.
4. The device for unloading the demercuration agent in the demercuration tower of claim 2, wherein the side wall of the speed reducing cylinder is provided with a plurality of communication holes which can obstruct the demercuration agent and allow dust to pass through.
5. The device for unloading a demercuration agent in a demercuration tower of claim 1, wherein a tank wall of the separation tank is provided with an exhaust hole communicated with the air pump, and the exhaust hole is provided with a screen.
6. The device for unloading a demercuration agent in a demercuration tower of claim 1, wherein a tank wall of the separation tank is provided with a vent hole communicated with the air pump, and the vent hole is arranged at the upper part of the separation tank.
7. The apparatus for unloading a demercuration agent in a demercuration tower of claim 1, wherein the apparatus comprises a dust filter disposed between the separation tank and the air pump, and an air inlet of the dust filter is communicated with the separation tank and an air outlet of the dust filter is communicated with the air pump.
8. The apparatus for unloading a demercuration agent in a demercuration column of claim 1, wherein the separation tank comprises a constant diameter portion and a tapered portion connected to a lower end of the constant diameter portion, and a horizontal cross-sectional area of the tapered portion gradually decreases from an upper end to a lower end.
9. The apparatus for discharging mercury-removing agent from mercury-removing column according to claim 1, wherein the bottom of the separation tank is provided with a discharge outlet, and the discharge outlet is provided with a control valve.
10. The device for unloading a demercuration agent in a demercuration tower of claim 1, wherein the suction pipe is a PVC fiber steel wire pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910547878.XA CN112124972A (en) | 2019-06-24 | 2019-06-24 | Device for unloading demercuration agent in demercuration tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910547878.XA CN112124972A (en) | 2019-06-24 | 2019-06-24 | Device for unloading demercuration agent in demercuration tower |
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| CN112124972A true CN112124972A (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910547878.XA Pending CN112124972A (en) | 2019-06-24 | 2019-06-24 | Device for unloading demercuration agent in demercuration tower |
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Citations (5)
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|---|---|---|---|---|
| JP2012082064A (en) * | 2010-10-14 | 2012-04-26 | Nippon Steel Engineering Co Ltd | Dust air flow carrying device of exhaust gas treating device in waste disposal facility |
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| CN207061325U (en) * | 2017-03-31 | 2018-03-02 | 东莞市鸿业兴机械有限公司 | A kind of automatic back blow sweeping device of open split Material sucking machine |
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2019
- 2019-06-24 CN CN201910547878.XA patent/CN112124972A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012082064A (en) * | 2010-10-14 | 2012-04-26 | Nippon Steel Engineering Co Ltd | Dust air flow carrying device of exhaust gas treating device in waste disposal facility |
| CN103754646A (en) * | 2013-10-31 | 2014-04-30 | 连云港中意航空材料有限公司 | Vacuum material suction device |
| CN207061325U (en) * | 2017-03-31 | 2018-03-02 | 东莞市鸿业兴机械有限公司 | A kind of automatic back blow sweeping device of open split Material sucking machine |
| CN207209421U (en) * | 2017-04-10 | 2018-04-10 | 汕头市名盛包装机械有限公司 | A kind of granule materials Pneumatic charging machine |
| CN207293582U (en) * | 2017-09-30 | 2018-05-01 | 福州胜澳能源材料科技有限公司 | A kind of nano silica fume feeding device |
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Application publication date: 20201225 |
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