CN106140036A - Fluid bed air outlet segregation apparatus in a kind of Melamine Production - Google Patents
Fluid bed air outlet segregation apparatus in a kind of Melamine Production Download PDFInfo
- Publication number
- CN106140036A CN106140036A CN201610762515.4A CN201610762515A CN106140036A CN 106140036 A CN106140036 A CN 106140036A CN 201610762515 A CN201610762515 A CN 201610762515A CN 106140036 A CN106140036 A CN 106140036A
- Authority
- CN
- China
- Prior art keywords
- fluid bed
- air outlet
- knockout drum
- tank body
- cyclone
- 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.)
- Pending
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Classifications
-
- 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
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
- B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to "fluidised-bed" technique
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D45/00—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces
- B01D45/12—Separating dispersed particles from gases or vapours by gravity, inertia, or centrifugal forces by centrifugal forces
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
-
- 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
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/005—Separating solid material from the gas/liquid stream
- B01J8/0055—Separating solid material from the gas/liquid stream using cyclones
-
- 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
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/005—Separating solid material from the gas/liquid stream
- B01J8/006—Separating solid material from the gas/liquid stream by filtration
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
- C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
- C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
- C07D251/40—Nitrogen atoms
- C07D251/54—Three nitrogen atoms
- C07D251/62—Purification of melamine
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
Abstract
The present invention provides fluid bed air outlet segregation apparatus in a kind of Melamine Production, it includes fluid bed tank body (1), bottom in fluid bed tank body (1) is provided with molten salt heater (2), it is provided with air outlet (1a) at fluid bed tank body (1) top, it is characterized in that: in fluid bed tank body (1), have a knockout drum (3), one end of knockout drum (3) is connected with air outlet (1a), knockout drum (3) is evenly equipped with one group of cyclone separation system (4), knockout drum (3) is additionally provided with a trachea (5), it is provided with spilling water valve (5a) in the end of trachea (5).The present invention have simple in construction, easy to use, be easy to the most directly transform, by generating amount of silica gel in gas, reducing silica gel consumption, decrease production cost, it is provided that product quality.
Description
Technical field:
The present invention relates to the production equipment of tripolycyanamide, in a kind of Melamine Production, fluid bed air outlet divides specifically
From device.
Background technology:
In recent years, being regulated and controled to be affected by world crisis and domestic real estate market, tripolycyanamide market go way down.In
This is simultaneously because the reaching its maturity of domestic one-step method tripolycyanamide technology, and this intermediate item a lot of that newly started, and makes this
Carrying out the most saturated Melamine Market severeer, each producer survival pressure is huge.Current domestic each tripolycyanamide producer
The utilization of capacity only has about 40%, has the most been in the edge of loss, wants to survive, further in the severeest market
Reduce cost and become the only way out.
In the production process of tripolycyanamide, in fluid bed synthetic reaction process, catalyst silica gel and process gas are located always
In fluidized state, and after reacting, generate gas and can deliver to rear workshop section along with air outlet, silica gel can be carried during this secretly.Currently
Cyclone separation system can not be totally separated from silica gel so that silica gel consumption reaches 7.5kg/ ton, super normal consumption 20%, primary rotation
Wind separating effect declines, and causes the use cycle low.
Summary of the invention:
The present invention is contemplated to overcome deficiency of the prior art, it is provided that in a kind of Melamine Production, fluid bed air outlet separates
Device.
The present invention provides techniques below scheme:
Fluid bed air outlet segregation apparatus in a kind of Melamine Production, it includes fluid bed tank body, in fluid bed tank body
Bottom is provided with molten salt heater, is provided with air outlet at fluid bed tank body top, it is characterised in that: in fluid bed tank body, there is one
Knockout drum, one end of knockout drum is connected with air outlet, is evenly equipped with one group of cyclone separation system, on knockout drum on knockout drum
It is additionally provided with a trachea, is provided with excessive valve in the end of trachea.
On the basis of technique scheme, it is also possible to have a techniques below scheme:
Described knockout drum is cone, and is provided with skimming net in knockout drum, is arranged over baffle plate at skimming net.
One group of described cyclone separation system is 8, and is equipped with the folder of 45 ° between two adjacent cyclone separation systems
Angle.
Described cyclone separation system includes, primary cyclone, is provided with air inlet in primary cyclone side
A, is communicated with the second cyclone separator at primary cyclone opposite side, and the second cyclone separator passes through pipeline b and knockout drum
Connection.
Invention advantage:
The present invention have simple in construction, easy to use, be easy on existing the advantages such as directly transformation.Additionally, the present invention in
Prior art is compared and is also had the advantage that
1, the execution of strong guarantee technic index, effectively prevents silica gel to take to below in system, decreases the consumption of silica gel,
Silica gel consumption drops to 3.1kg/t from 7.5kg/t, improves the quality of product simultaneously；
2, improve the use cycle of primary cyclone, it is not necessary to the parking taken place frequently processes；
3, reduce employee labour force, reduce external coordination resource, reduce human cost.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the A direction view in Fig. 1；
Fig. 3 is the structural representation of the cyclone separation system of Fig. 1.
Detailed description of the invention:
As it is shown in figure 1, fluid bed air outlet segregation apparatus in a kind of Melamine Production, it includes fluid bed tank body 1, in fluidisation
Bottom in bed tank body 1 is provided with molten salt heater 2, and above molten salt heater 2, the middle part level in fluid bed tank body 1 is provided with the end
Plate 6, is evenly equipped with one group of pore 6a on base plate 6.
Air outlet 1a, air outlet 1a lower end and a cone in fluid bed tank body 1 it is provided with at fluid bed tank body 1 top
Knockout drum 3 be connected, and at the middle part of knockout drum 3 inner chamber, level is provided with the skimming net 3a that a rustless steel is made, in skimming
The position of net 3a one end spaced above distance is provided with a stainless baffle plate 3b, and described baffle plate 3b is arch.
As in figure 2 it is shown, be evenly equipped with 8 cyclone separation systems 4 on the outer wall of knockout drum 3, and two adjacent whirlwind divide
The angle of 45 ° it is equipped with between system 4.
As it is shown on figure 3, described cyclone separation system 4 includes, primary cyclone 4a, at primary cyclone 4a
Side is provided with air inlet a, is communicated with the second cyclone separator 4b, the second cyclonic separation at primary cyclone 4a opposite side
Device 4b is connected with knockout drum 3 by pipeline b.
A pipeline 4c extended downwardly from, the bottom of pipeline 4c it is provided with bottom described each primary cyclone 4a
After being passed down through base plate 6, it is provided with bipyramid plug 4d, described bipyramid plug 4d in its end and is positioned at the lower section of base plate 6.
Being provided with a pipeline 4c extended downwardly from bottom described each two cyclone separator 4b, the bottom of pipeline 4c sets
Having separator to overflow valve 4f, the described separator valve 4f that overflows is respectively positioned on the top of base plate 6.
Being provided with a trachea 5 in the bottom of knockout drum 3 straight down, be provided with excessive valve 5a in the end of trachea 5, described overflows
Valve 5a also is located at the top of base plate 6.
Operation principle:
400 DEG C of high temperature gas flows and the common of catalyst silica gel that carbamide is produced by molten salt heater 2 in fluid bed tank body 1 act on
Issue heat solution, polymerization, produce melamine processes gas.Melamine processes gas is provided with by primary cyclone 4a side
Air inlet a enters in primary cyclone 4a, carries out first order separation.
The isolated silica gel of the first order returns to the lower section of base plate 6 by bipyramid plug 4d, continues at fluid bed tank body 1 internal reference
Adding reaction, other melamine processes gas then and then in the second cyclone separator 4b, carries out second level separation.
The isolated silica gel in the second level is overflow by separator, and valve 4f is interior to discharge, and continues to participate in reaction in fluid bed tank body 1,
Other melamine processes gas is then entered in knockout drum 3 by pipeline b and carries out third level separation.
At this moment silica gel ratio contained in the melamine processes gas in knockout drum 3 is entered sparser, then through skimming
Net 3a filters and the stop of baffle plate 3b, and silica gel drops into bottom knockout drum 3, and is excluded by trachea 5 and excessive valve 5a
Knockout drum 3, continues to participate in reaction in fluid bed tank body 1.
At this moment the purest in knockout drum 3 melamine processes gas, just by air outlet 1a, leaves fluid bed tank body 1 and enters
Enter next process.
Claims (4)
1. a fluid bed air outlet segregation apparatus in Melamine Production, it includes fluid bed tank body (1), at fluid bed tank body
(1) bottom in is provided with molten salt heater (2), is provided with air outlet (1a) at fluid bed tank body (1) top, it is characterised in that:
Having a knockout drum (3) in fluid bed tank body (1), one end of knockout drum (3) is connected with air outlet (1a), in knockout drum (3)
On be evenly equipped with one group of cyclone separation system (4), knockout drum (3) is additionally provided with a trachea (5), sets in the end of trachea (5)
There is excessive valve (5a).
2. according to fluid bed air outlet segregation apparatus in a kind of Melamine Production described in claim 1, it is characterised in that:
Described knockout drum (3) is cone, and is provided with skimming net (3a) in knockout drum (3), is arranged over gear at skimming net (3a)
Plate (3b).
3. according to fluid bed air outlet segregation apparatus in a kind of Melamine Production described in claim 1, it is characterised in that:
One group of described cyclone separation system (4) is 8, and is equipped with the angle of 45 ° between two adjacent cyclone separation systems.
4. according to fluid bed air outlet segregation apparatus in a kind of Melamine Production described in claim 1, it is characterised in that:
Described cyclone separation system (4) includes that primary cyclone (4a) is provided with air inlet in primary cyclone (4a) side
Mouth a, is communicated with the second cyclone separator (4b) at primary cyclone (4a) opposite side, and the second cyclone separator (4b) leads to
Piping b connects with knockout drum (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610762515.4A CN106140036A (en) | 2016-08-31 | 2016-08-31 | Fluid bed air outlet segregation apparatus in a kind of Melamine Production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610762515.4A CN106140036A (en) | 2016-08-31 | 2016-08-31 | Fluid bed air outlet segregation apparatus in a kind of Melamine Production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106140036A true CN106140036A (en) | 2016-11-23 |
Family
ID=57345135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610762515.4A Pending CN106140036A (en) | 2016-08-31 | 2016-08-31 | Fluid bed air outlet segregation apparatus in a kind of Melamine Production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106140036A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111054271A (en) * | 2018-10-17 | 2020-04-24 | 中国石油化工股份有限公司 | Low-agent-consumption reaction device and reaction method for preparing aniline by nitrobenzene hydrogenation |
Citations (11)
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|---|---|---|---|---|
| CN2347654Y (en) * | 1998-02-24 | 1999-11-10 | 蒋大洲 | Melamine fluidised-bed reactor |
| CN101164684A (en) * | 2006-10-20 | 2008-04-23 | 中国石油化工股份有限公司 | Combined fluidized bed reactor |
| CN101274879A (en) * | 2007-03-30 | 2008-10-01 | 中国石油化工股份有限公司 | Fluidizer for producing dimethyl ether by methanol dehydration |
| CN101410484A (en) * | 2006-03-31 | 2009-04-15 | 埃克森美孚化学专利公司 | Method for separating gases from solids in a gas-solids reaction system using a gas-solids flow |
| CN101648093A (en) * | 2008-08-15 | 2010-02-17 | 中冶赛迪工程技术股份有限公司 | Coaxial separator |
| WO2012004807A1 (en) * | 2010-07-08 | 2012-01-12 | Indian Oil Corporation Ltd. | Multi riser resid catalytic cracking process and apparatus |
| CN104277865A (en) * | 2013-07-09 | 2015-01-14 | 刘英聚 | Anti-coking gas-solid separation method and equipment |
| CN204170571U (en) * | 2014-10-15 | 2015-02-25 | 上海建安化工设计有限公司 | A kind of Novel gas-liquid separator be applied in hydrogenation plant |
| CN104549060A (en) * | 2013-10-28 | 2015-04-29 | 中国石油化工股份有限公司 | Slurry bed loop reactor, application and method for producing hydrogen peroxide |
| CN104593047A (en) * | 2013-10-31 | 2015-05-06 | 中国石油化工股份有限公司 | Adsorption desulphurization reaction apparatus and adsorption desulphurization method |
| CN206152778U (en) * | 2016-08-31 | 2017-05-10 | 安徽金禾实业股份有限公司 | Fluidized bed air outlet separator in melamine production |
-
2016
- 2016-08-31 CN CN201610762515.4A patent/CN106140036A/en active Pending
Patent Citations (11)
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|---|---|---|---|---|
| CN2347654Y (en) * | 1998-02-24 | 1999-11-10 | 蒋大洲 | Melamine fluidised-bed reactor |
| CN101410484A (en) * | 2006-03-31 | 2009-04-15 | 埃克森美孚化学专利公司 | Method for separating gases from solids in a gas-solids reaction system using a gas-solids flow |
| CN101164684A (en) * | 2006-10-20 | 2008-04-23 | 中国石油化工股份有限公司 | Combined fluidized bed reactor |
| CN101274879A (en) * | 2007-03-30 | 2008-10-01 | 中国石油化工股份有限公司 | Fluidizer for producing dimethyl ether by methanol dehydration |
| CN101648093A (en) * | 2008-08-15 | 2010-02-17 | 中冶赛迪工程技术股份有限公司 | Coaxial separator |
| WO2012004807A1 (en) * | 2010-07-08 | 2012-01-12 | Indian Oil Corporation Ltd. | Multi riser resid catalytic cracking process and apparatus |
| CN104277865A (en) * | 2013-07-09 | 2015-01-14 | 刘英聚 | Anti-coking gas-solid separation method and equipment |
| CN104549060A (en) * | 2013-10-28 | 2015-04-29 | 中国石油化工股份有限公司 | Slurry bed loop reactor, application and method for producing hydrogen peroxide |
| CN104593047A (en) * | 2013-10-31 | 2015-05-06 | 中国石油化工股份有限公司 | Adsorption desulphurization reaction apparatus and adsorption desulphurization method |
| CN204170571U (en) * | 2014-10-15 | 2015-02-25 | 上海建安化工设计有限公司 | A kind of Novel gas-liquid separator be applied in hydrogenation plant |
| CN206152778U (en) * | 2016-08-31 | 2017-05-10 | 安徽金禾实业股份有限公司 | Fluidized bed air outlet separator in melamine production |
Non-Patent Citations (2)
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|---|
| 周高宁等: "《反应器操作》", 30 June 2011, 石油工业出版社 * |
| 无锡轻工业学院等: "《食品工程原理（上册）》", 31 January 1996, 中国轻工业出版社 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111054271A (en) * | 2018-10-17 | 2020-04-24 | 中国石油化工股份有限公司 | Low-agent-consumption reaction device and reaction method for preparing aniline by nitrobenzene hydrogenation |
| CN111054271B (en) * | 2018-10-17 | 2021-03-26 | 中国石油化工股份有限公司 | Low-agent-consumption reaction device and reaction method for preparing aniline by nitrobenzene hydrogenation |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161123 |
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| RJ01 | Rejection of invention patent application after publication |