CN109678808A - The cold and hot shunting energy saving technique of the deep clean of melamine product production equipment and device - Google Patents
The cold and hot shunting energy saving technique of the deep clean of melamine product production equipment and device Download PDFInfo
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- CN109678808A CN109678808A CN201710977404.XA CN201710977404A CN109678808A CN 109678808 A CN109678808 A CN 109678808A CN 201710977404 A CN201710977404 A CN 201710977404A CN 109678808 A CN109678808 A CN 109678808A
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- melamine
- gas
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- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The cold and hot shunting energy saving technique of the deep clean of melamine product production equipment of the present invention and device, pass through the technical program, the input terminal of melamine filter is connected with cyclone separator output end, the output end of melamine filter is connected with the input terminal of the input terminal of Carrier Gas Compressor and urine scrubbing tower respectively, gas enters melamine product filter, the powder melamine carried secretly in gas is thoroughly filtered down, Carrier Gas Compressor will react gas carrier and return in melamine reactor, another part gas come out from melamine product filter, into in urine scrubbing tower, after urine cools down, into circulating cold air compressor, crystallizer is sent into carry out that melamine material in gas phase is cooled to crystallization powder under the cooling of circulation cold air, output separates product after cyclone separator separates, using New technology simultaneously increases melamine filter in process units, reaches and extends the equipment cycle of operation, the purpose of energy saving reduction system thermal energy consumption.
Description
Technical field
The present invention relates to a kind of melamine product production equipment and methods, raw more particularly to a kind of melamine product
Produce the cold and hot shunting energy saving technique of deep clean and device of equipment.
Background technique
Melamine is commonly called as melamine, extract of protein, chemical formula: C3N3(NH2) 3, it is that a kind of triazines nitrogen-containing heterocycle organises
Object is closed, is used as industrial chemicals, melamine can be made by polymerizeing with formaldehyde condensation, can be used for plastics and coatings industry；It can also make
The anti-folding of textile fabric, anti-shrinking agent；Its modified resin can do metallic paint bright in colour, durable, that hardness is good；It can also be used in
Firm, heat-resisting fancy veneer；Moistureproof paper and grey leather tanning agent, the bonding agent of synthesizing fireproof laminate；And waterproofing agent is consolidated
Determine agent or curing agent etc..
In industrial production, the production method of melamine can be divided into high-pressure process and low-pressure vapor phase quenching method, at present application compared with
Mostly is low-pressure vapor phase quenching method, and low-pressure vapor phase quenching method is that in the reactor, under the booster action of catalyst, urea turns
It is changed to melamine, isolates powdery melamine material in cooling procedure, in gas phase, gas phase continues to be recycled.
As shown in Figure 1, the setting of low-pressure vapor phase quenching method is by, cyclone separator 1, urine scrubbing tower 2, Carrier Gas Compressor 3, cold
Gas recycle compressor 4, melamine reactor 5, road oil generation cooler 6, high boiling coordinate filter 7 and crystallizer 8 are constituted, existing
Problem is after gas phase quenching, and product generates granular material in the gas phase, after separating using primary cyclone 1, brings urine into
The material of liquid scrubbing tower 2 is more, after gas goes out urine scrubbing tower 2, still has after cyclonic separation containing urine, triamine material
The urine of entrainment material containing triamine brings circulating cold air compressor 4 and Carrier Gas Compressor 3 into, is sticked to it on impeller, causes
Impeller is gradually blocked, and causes the amount of inflating smaller and smaller, thus after substantially two months to the three months cycles of operation, circulating cold air
Compress 4 machines, 3 tolerance of Carrier Gas Compressor will be greatly decreased, to be forced to cause parking cleaning maintenance, the fortune of low-pressure vapor phase quenching method
Row short cycle problem is always insurmountable technical problem in low-pressure process production melamine product.
Summary of the invention
In view of this, the main purpose of the present invention is to provide a kind of deep clean of melamine product production equipment is cold
It thermally shunts energy saving technique and device and increases trimerization using new technology and in process units by originally holding art scheme
Cyanogen ammonia filter reaches and extends the equipment cycle of operation, the purpose of energy saving reduction system thermal energy consumption.
In order to achieve the above object, the technical scheme of the present invention is realized as follows: a kind of production of melamine product is set
The cold and hot shunting energy saving technique of standby deep clean, the gas come out from melamine reactor, carries out through passageway oil generation cooler
Entering higher boiling filter after primary cooling, after initial gross separation goes out the impurity material of high-melting-point crystallization, gas enters in crystallizer,
Under the cooling of circulation cold air, melamine material in gas phase is cooled into crystallization powder, after cyclone separator separates
Output separates product, and gas enters melamine product filter, under the powder melamine carried secretly in gas is thoroughly filtered
Come, a part of gas come out from melamine product filter is directly entered Carrier Gas Compressor, and return through Carrier Gas Compressor
Into melamine reactor, another part gas come out from melamine product filter, into urine scrubbing tower, warp
After crossing urine cooling, into circulating cold air compressor, it is sent into crystallizer and carries out melamine in gas phase under the cooling of circulation cold air
Ammonia material is cooled to crystallization powder, and output separates product after cyclone separator separates.
As further process technology scheme, the gas temperature that the reactor comes out is 380-400 DEG C, through passageway
Temperature after oil generation cooler progress primary cooling is 340-350 DEG C, and gas enters in crystallizer, in the cooling of circulation cold air
Lower temperature is 220-250 DEG C, and the gas temperature for being directly entered Carrier Gas Compressor is 215-225 DEG C.
A kind of cold and hot shunting energy saver of the deep clean of melamine product production equipment, including cyclone separator, urine
Liquid scrubbing tower, Carrier Gas Compressor, circulating cold air compressor, melamine reactor, road oil generation cooler, high boiling coordinate filter and
Crystallizer, the melamine reactor output end are connected through road oil generation cooler, high boiling coordinate filter with crystallizer input terminal,
The output end of crystallizer is connected with cyclone separator, which is characterized in that and it further include melamine filter, the melamine mistake
The input terminal of filter is connected with cyclone separator output end, and the output end of melamine filter is defeated with Carrier Gas Compressor respectively
Enter end to be connected with the input terminal of urine scrubbing tower.
As further technical solution, the melamine reactor is by more than one independent melamine reactor
It is in parallel.
Beneficial effect after by adopting the above technical scheme is: a kind of deep clean of melamine product production equipment is cold and hot
Energy saving technique and device are shunted, by the technical program, after the gas after crystallizer carries out cyclonic separation, further enters three
In amine product filter, depth-type filtration is carried out, eliminates in gas melamine dust in entrainment separation gas, according to measuring and calculating,
The melamine product amount separated daily is about 10-15 ton/days, can directly increase device load yield about 3%, subtract simultaneously
The product melamine carried secretly in oliguresis liquid, reduces the partial pressure of product in melamine reactor, it is anti-to increase melamine
The positive motive force of device is answered, while reducing the energy of entrainment melamine, it is effective to reduce pump power consumption, it is separated using depth
Gas is directly entered Carrier Gas Compressor, it is no longer necessary to enter urine scrubbing tower and carry out urine washing, purifying, high-temperature gas is directly sent
Melamine reactor is returned, 7.5% or more the thermal energy consumption of molten salt furnace can be effectively saved.
Detailed description of the invention
Fig. 1 is the integrated artistic structural schematic diagram of the prior art.
Fig. 2 is integrated artistic structural schematic diagram of the invention.
In figure, 1 cyclone separator, 2 urine scrubbing towers, 3 Carrier Gas Compressors, 4 circulating cold air compressors, 5 melamines are anti-
Answer device, 6 oil generation coolers, 7 high boiling coordinate filters, 8 crystallizers, 9 melamine product filters, 10 separation products.
Specific embodiment
Specific embodiment in the present invention is described in further detail below in conjunction with attached drawing.
As shown in Fig. 2, the cold and hot shunting energy saving technique of the deep clean of melamine product production equipment of the present invention,
The gas come out from melamine reactor 5 enters higher boiling filter 7 after passageway oil generation cooler 6 carries out primary cooling,
After initial gross separation goes out the impurity material of high-melting-point crystallization, gas enters in crystallizer 8, under the cooling of circulation cold air, by gas phase
Middle melamine material is cooled into crystallization powder, and output separates product 10 after the separation of cyclone separator 1, and gas enters three
Paracyanogen amine product filter 9 thoroughly filters down the powder melamine carried secretly in gas, from melamine product filter
The 9 a part of gases come out are directly entered Carrier Gas Compressor 3, and return in melamine reactor 5 through Carrier Gas Compressor 3,
Another part gas come out from melamine product filter 9 after urine cools down, enters into urine scrubbing tower 2
Circulating cold air compressor 4 is re-fed into crystallizer 8 and carries out that melamine material in gas phase is cooled to knot under the cooling of circulation cold air
Crystalline flour material, output separates product 10 after the separation of cyclone separator 1.
As further embodiment, the gas temperature that the melamine reactor 5 comes out is 380-400 DEG C, is passed through
Temperature after the progress primary cooling of road oil generation cooler 6 is 340-350 DEG C, and gas enters in crystallizer 8, in circulation cold air
The lower temperature that cools down is 220-250 DEG C, and the gas temperature for being directly entered Carrier Gas Compressor 3 is 215-225 DEG C.
The cold and hot shunting energy saver of the deep clean of melamine product production equipment of the present invention, including whirlwind point
From device 1, urine scrubbing tower 2, Carrier Gas Compressor 3, circulating cold air compressor 4, melamine reactor 5, road oil generation cooler 6,
High boiling coordinate filter 7 and crystallizer 8,5 output end of melamine reactor is through road oil generation cooler 6, high boiling coordinate filter 7
It is connected with 8 input terminal of crystallizer, the output end of crystallizer 8 is connected with cyclone separator 1, further includes melamine filter 9, institute
The input terminal for stating melamine filter 9 is connected with 1 gas transmission end of cyclone separator, the output end difference of melamine filter 5
It is connected with the input terminal of the input terminal of Carrier Gas Compressor 3 and urine scrubbing tower 2.
As further embodiment, the melamine reactor 5 is by more than one independent melamine reactor
It is in parallel.
At work using after technical solution of the present invention, the gas that cyclone separator 1 comes out is sent into melamine product mistake
In filter 9, carry out depth separation, two groups of melamine product filters 9 in parallel be set, are controlled with regulating valve, realize one group
Product is collected in line operation, another group of blowback；The a part for the gas that melamine product filter 9 comes out is directly entered carrier gas pressure
In pressurized feeding melamine reactor 5, the melamine generated in melamine reactor 5 is pushed as carrier gas for contracting machine 3
It takes out of, the another part for the gas that melamine product filter 9 comes out enters in urine scrubbing tower 2, is cooled to 135-140
DEG C, it is sent into crystallizer and is used as cooling medium, by melamine decrease temperature crystalline in melamine product gas, subsequently into rotation
Separation product 10 is carried out in wind separator 1.
Simulated experiment is carried out respectively according to above-mentioned technical proposal, and it is as shown in Table 1 to test specific data:
Table one
The above, preferable possible embodiments only of the invention, the range being not intended to limit the invention.
Claims (4)
1. a kind of cold and hot shunting energy saving technique of the deep clean of melamine product production equipment, which is characterized in that from melamine
The gas that ammonia reactor comes out enters higher boiling filter after passageway oil generation cooler carries out primary cooling, and initial gross separation goes out
After the impurity material of high-melting-point crystallization, gas enters in crystallizer, under the cooling of circulation cold air, by melamine object in gas phase
Material is cooled into crystallization powder, and output separates product after cyclone separator separates, and gas enters melamine product filtering
Device thoroughly filters down the powder melamine carried secretly in gas, a part of gas come out from melamine product filter
Body is directly entered Carrier Gas Compressor, and returns in melamine reactor through Carrier Gas Compressor, filters from melamine product
Another part gas that device comes out after urine cools down, into circulating cold air compressor, is sent into urine scrubbing tower
Crystallizer carries out that melamine material in gas phase is cooled to crystallization powder under the cooling of circulation cold air, by cyclone separator point
Product is separated from rear output.
2. the cold and hot shunting energy saving technique of the deep clean of melamine product production equipment according to claim 1, special
Sign is that the gas temperature that reactor comes out is 380-400 DEG C, the temperature after passageway oil generation cooler carries out primary cooling
It is 340-350 DEG C, gas enters in crystallizer, and temperature is 220-250 DEG C under the cooling of circulation cold air, is directly entered carrier gas
The gas temperature of compressor is 215-225 DEG C.
3. a kind of cold and hot shunting energy saver of the deep clean of melamine product production equipment, including cyclone separator, urine
Scrubbing tower, Carrier Gas Compressor, circulating cold air compressor, melamine reactor, road oil generation cooler, high boiling coordinate filter and knot
Brilliant device, the melamine reactor output end are connected through road oil generation cooler, high boiling coordinate filter with crystallizer input terminal, knot
The output end of brilliant device is connected with cyclone separator, which is characterized in that and it further include melamine filter, the melamine filtering
The input terminal of device is connected with cyclone separator output end, the output end of melamine filter respectively with the input of Carrier Gas Compressor
End is connected with the input terminal of urine scrubbing tower.
4. the cold and hot shunting energy saver of the deep clean of melamine product production equipment according to claim 3, special
Sign is that the melamine reactor is in parallel by more than one independent melamine reactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710977404.XA CN109678808A (en) | 2017-10-19 | 2017-10-19 | The cold and hot shunting energy saving technique of the deep clean of melamine product production equipment and device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710977404.XA CN109678808A (en) | 2017-10-19 | 2017-10-19 | The cold and hot shunting energy saving technique of the deep clean of melamine product production equipment and device |
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| CN109678808A true CN109678808A (en) | 2019-04-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113429318A (en) * | 2021-06-22 | 2021-09-24 | 四川金象赛瑞化工股份有限公司 | Method for producing phthalonitrile by gas-phase quenching method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105218470A (en) * | 2015-08-22 | 2016-01-06 | 安徽金禾实业股份有限公司 | Solid and gas tripping device in a kind of Melamine Production |
| CN105503758A (en) * | 2016-01-18 | 2016-04-20 | 尹明大 | Melamine production system and technique |
| CN207330799U (en) * | 2017-10-19 | 2018-05-08 | 山东华鲁恒升化工股份有限公司 | The cold and hot shunting energy saver of deep clean of melamine product production equipment |
-
2017
- 2017-10-19 CN CN201710977404.XA patent/CN109678808A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105218470A (en) * | 2015-08-22 | 2016-01-06 | 安徽金禾实业股份有限公司 | Solid and gas tripping device in a kind of Melamine Production |
| CN105503758A (en) * | 2016-01-18 | 2016-04-20 | 尹明大 | Melamine production system and technique |
| CN207330799U (en) * | 2017-10-19 | 2018-05-08 | 山东华鲁恒升化工股份有限公司 | The cold and hot shunting energy saver of deep clean of melamine product production equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113429318A (en) * | 2021-06-22 | 2021-09-24 | 四川金象赛瑞化工股份有限公司 | Method for producing phthalonitrile by gas-phase quenching method |
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