CN102120173A - Urea-formaldehyde production device in compound fertilizer preparation process - Google Patents
Urea-formaldehyde production device in compound fertilizer preparation process Download PDFInfo
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- CN102120173A CN102120173A CN2010106165457A CN201010616545A CN102120173A CN 102120173 A CN102120173 A CN 102120173A CN 2010106165457 A CN2010106165457 A CN 2010106165457A CN 201010616545 A CN201010616545 A CN 201010616545A CN 102120173 A CN102120173 A CN 102120173A
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Abstract
本发明提供了一种复合肥制备工艺中的脲甲醛生产装置，包括反应釜、反应釜外围夹套、甲醛储罐、尿素储罐、热蒸汽装置及冷却水装置，所述反应釜上设有进水口、与所述甲醛储罐连通的甲醛进口、与所述尿素储罐连通的尿素进口及脲甲醛出口，所述反应釜外围夹套内设置有加热单元和冷却单元，所述加热单元上设置有与所述热蒸汽装置连通的热蒸汽进口及热蒸汽排放口，所述冷却单元设置有与所述冷却水装置连通的冷却水进口及冷却水溢流口，所述热蒸汽进口及所述冷却水溢流口位于所述反应釜的顶部，所述冷却水进口及所述热蒸汽排放口位于所述反应釜的底部。本发明能够实现加热或冷却更迅速更全面，有效地控制反应过程中的温度，从而使反应更充分，提高形成的脲甲醛产量和质量。
The present invention provides a urea formaldehyde production device in a compound fertilizer preparation process, comprising a reactor, a jacket around the reactor, a formaldehyde storage tank, a urea storage tank, a hot steam device and a cooling water device, wherein the reactor is provided with a water inlet, a formaldehyde inlet connected to the formaldehyde storage tank, a urea inlet connected to the urea storage tank and a urea formaldehyde outlet, a heating unit and a cooling unit are arranged in the jacket around the reactor, a hot steam inlet and a hot steam discharge port connected to the hot steam device are arranged on the heating unit, a cooling water inlet and a cooling water overflow port connected to the cooling water device are arranged on the cooling unit, the hot steam inlet and the cooling water overflow port are located at the top of the reactor, and the cooling water inlet and the hot steam discharge port are located at the bottom of the reactor. The present invention can realize faster and more comprehensive heating or cooling, effectively control the temperature in the reaction process, thereby making the reaction more complete, and improving the yield and quality of the formed urea formaldehyde.
Description
Technical field
The present invention relates to preparing compound fertilizer technology field, relate more specifically to the ureaformaldehyde process units in a kind of preparing compound fertilizer technology.
Background technology
Mechanization, intensification, simplification development are tended in modern plant husbandry more, at degradation problem under soil compaction, environmental pollution, the agricultural product quality, aspect enforcement ecological efficient agricultural sustainable development, improve utilization rate of fertilizer, improve soil environment, aspect the joint of promoting to get agricultural profit, how under safety, efficient, environmental protection prerequisite, accelerate the modern agricultural development paces, become the important topic of China's modern agricultural development.
Ureaformaldehyde composite fertilizer belongs to one of slow-release or control-release fertilizer, can be in decomposition rate difference under the different temperatures, satisfy the nutrient demand of crop different growing stage, reach the identical substantially of nutrient release amount and crop different times nutrient demand amount, realize intelligent controlled release, support as required; And fertilizer efficiency is stable more lasting, and nutrient has adsorbed absorption.
Ureaformaldehyde composite fertilizer is because its advantageous advantage, beginning replaces traditional composite fertilizer gradually, but when granulation, directly add ready-made ureaformaldehyde in the preparing compound fertilizer technology of prior art often, because ready-made ureaformaldehyde because quality is irregular different with purity, makes the quality of the ureaformaldehyde composite fertilizer after the granulation unsatisfactory.
In order to improve the problems referred to above, prepare ureaformaldehyde composite fertilizer now, before granulation, prepare ureaformaldehyde earlier, we know, the preparation technology of ureaformaldehyde mixes primary raw material urea and formaldehyde by a certain percentage, and after carrying out addition reaction earlier under the catalysis of acid or alkali, carry out polymerisation, thereby form ureaformaldehyde.And in two class chemical reactions, temperature control (as heating or cooling) is very big to the property effect of the ureaformaldehyde of formation, still, and in the ureaformaldehyde process units of prior art, temperature control effect is general, fails to realize effectively well heating or cooling effect.
Therefore, need provide the ureaformaldehyde process units in a kind of improved preparing compound fertilizer technology to overcome above-mentioned difficulties.
Summary of the invention
The purpose of this invention is to provide the ureaformaldehyde process units in a kind of preparing compound fertilizer technology, can realize that heating or cooling are more more comprehensively rapid, control the temperature in the course of reaction effectively, thereby make reaction more abundant, improve the ureaformaldehyde output and the quality that form.
For achieving the above object, the invention provides the ureaformaldehyde process units in a kind of preparing compound fertilizer technology, comprise reactor, the peripheral chuck of reactor, the formaldehyde storage tank, urea storage tank, vapours device and chilled water unit, described reactor is provided with water inlet, the formaldehyde import that is communicated with described formaldehyde storage tank, urea import that is communicated with described urea storage tank and ureaformaldehyde outlet, be provided with heating unit and cooling unit in the peripheral chuck of described reactor, described heating unit is provided with vapours import and the vapours floss hole that is communicated with described vapours device, described cooling unit is provided with cooling water inlet and the cooling water overfall that is communicated with described chilled water unit, described vapours import and described cooling water overfall are positioned at the top of described reactor, and described cooling water inlet and described vapours floss hole are positioned at the bottom of described reactor.
Preferably, described heating unit and described cooling unit in the shape of a spiral shape extend along described reactor outer surface.
Preferably, the bottom of described reactor is located in described ureaformaldehyde outlet, and the ureaformaldehyde that is connected with a shower nozzle will react formation by rear pump sprays from described shower nozzle.
Preferably, between described ureaformaldehyde outlet and the described rear pump ureaformaldehyde flowmeter is installed.
Preferably, described formaldehyde storage tank is connected with described reactor by delivery pump, and by described delivery pump the formaldehyde in the described formaldehyde storage tank is transported in the described reactor.
Preferably, between described formaldehyde storage tank and the described delivery pump formaldehyde flowmeter is installed.
Preferably, described reactor comprises kettle and places the rabbling mechanism of described kettle inside that the top of described kettle and bottom are all to outer lug.
Preferably, described reactor is provided with temperature measuring equipment, is used to measure described reactor temperature inside, and measurement result is transported to the turnover of control device with control vapours or cooling water.
Preferably, described water inlet, formaldehyde import, urea import, vapours import, cooling water inlet, vapours floss hole, cooling water overfall and ureaformaldehyde exit are equipped with control valve.
Preferably, described reactor is two, is arranged side by side, and is connected with described formaldehyde storage tank, urea storage tank, vapours device and chilled water unit respectively.
Compared with prior art, the peripheral chuck of the reactor of the reactor of ureaformaldehyde process units of the present invention is provided with in the shape of a spiral, and shape extends heating unit and cooling unit along described reactor outer surface, this heating unit connects the vapours device, cooling unit connects chilled water unit, and vapours import and cooling water overfall are positioned at the top of described reactor, cooling water inlet and vapours floss hole are positioned at the bottom of described reactor, i.e. " heating steam high in and low out; cooling water low in and high out ", realize that heating or cooling are more more comprehensively rapid, can more effectively control the temperature in the course of reaction, thereby make reaction more abundant, improve the ureaformaldehyde output and the quality that form.
By following description also in conjunction with the accompanying drawings, it is more clear that the present invention will become, and these accompanying drawings are used to explain embodiments of the invention.
Description of drawings
Fig. 1 is the structural representation of the ureaformaldehyde process units in the preparing compound fertilizer technology of the present invention.
The specific embodiment
With reference now to accompanying drawing, describe embodiments of the invention, the similar elements label is represented similar elements in the accompanying drawing.As mentioned above, the invention provides the ureaformaldehyde process units in a kind of preparing compound fertilizer technology, can realize that heating or cooling are more more comprehensively rapid, control the temperature in the course of reaction effectively, thereby make reaction more abundant, improve the ureaformaldehyde output and the quality that form.
With reference to figure 1, ureaformaldehyde process units 100 of the present invention comprises reactor 10, the peripheral chuck 20 of reactor, formaldehyde storage tank 30, urea storage tank 40, vapours device 50 and chilled water unit 60.Described reactor is provided with water inlet 11, the formaldehyde import 12 that is communicated with described formaldehyde storage tank 30, the urea import 13 that is communicated with described urea storage tank 40 and ureaformaldehyde outlet 14.
Be provided with heating unit and cooling unit (figure does not show) in the peripheral chuck 20 of described reactor, described heating unit and described cooling unit shape in the shape of a spiral extend along described reactor outer surface.Described heating unit is provided with vapours import 21 and the vapours floss hole 22 that is communicated with described vapours device 50, described cooling unit is provided with cooling water inlet 23 and the cooling water overfall 24 that is communicated with described chilled water unit 60, described vapours import 21 and described cooling water overfall 24 are positioned at the top 101 of described reactor 10, and described cooling water inlet 23 and described vapours floss hole 22 are positioned at the bottom 102 of described reactor 10.When promptly needing to heat to the raw material in the described reactor 10, the vapours that is transported to described reactor 10 from described vapours device 50 enters from the top 101 of described reactor 10, and give described reactor 10 heating along the heating unit of the peripheral chuck 20 of described reactor, promptly carry out heat exchange, vapours cooling and part flowed to vapours floss hole 22 dischargings of being located at described reactor 10 bottoms 102 after forming cooling water when reactor 10 temperature were risen; And when cooling off need for raw material in the described reactor 10, the cooling water that is transported to described reactor 10 from described chilled water unit 60 enters from the bottom 102 of described reactor 10, and cool off for described reactor 10 along the cooling unit of the peripheral chuck 20 of described reactor, after taking away the heat that described reactor 10 produces, flow out from the cooling water overfall 24 at the top 101 of described reactor 10.Like this, utilize " heating steam high in and low out, cooling water low in and high out ", can realize that heating or cooling are more more comprehensively rapid, control the temperature in the course of reaction effectively, thereby make reaction more abundant, improve the ureaformaldehyde output and the quality that form.
Described reactor 10 comprises kettle and places the rabbling mechanism of described kettle inside that the top 101 of described kettle and bottom 102 are all to outer lug.
Described reactor 10 is provided with temperature measuring equipment 15, is used to measure described reactor 10 temperature inside, and measurement result is transported to the turnover of control device (figure does not show) with control vapours or cooling water.
Described water inlet 11, formaldehyde import 12 and urea import 13 places are equipped with control valve, guarantee the timely supply of raw material with control.Described vapours import 21, cooling water inlet 23, vapours floss hole 22 and cooling water overfall 24 places are equipped with control valve, are used to control the turnover of vapours or cooling water.
The preferably, described formaldehyde storage tank 30 is connected with described reactor 10 by delivery pump 31, and the formaldehyde in the described formaldehyde storage tank 30 is transported in the described reactor 10 by described delivery pump 31, and between described formaldehyde storage tank 30 and the described delivery pump 31 formaldehyde flowmeter 31 is installed, is used to measure the flow of the formaldehyde of conveying.
The preferably; the bottom 102 of described reactor 10 is located in described ureaformaldehyde outlet 14; and be connected with a shower nozzle 141 will react the ureaformaldehyde that forms by rear pump 140 and be ejected into from described shower nozzle 141 equipment such as comminutor and carry out granulation with other composite fertilizer materials; and between described ureaformaldehyde outlet 14 and the described rear pump 140 ureaformaldehyde flowmeter 142 is installed, is used to measure reaction and forms the outwards flow of the ureaformaldehyde of output.
The preferably, described reactor 10 is two, is arranged side by side, and is connected with described formaldehyde storage tank 30, urea storage tank 40, vapours device 50 and chilled water unit 60 respectively.
Above invention has been described in conjunction with most preferred embodiment, but the present invention is not limited to the embodiment of above announcement, and should contain various modification, equivalent combinations of carrying out according to essence of the present invention.
Claims (10)
1. the ureaformaldehyde process units in the preparing compound fertilizer technology, it is characterized in that comprising reactor, the peripheral chuck of reactor, the formaldehyde storage tank, urea storage tank, vapours device and chilled water unit, described reactor is provided with water inlet, the formaldehyde import that is communicated with described formaldehyde storage tank, urea import that is communicated with described urea storage tank and ureaformaldehyde outlet, be provided with heating unit and cooling unit in the peripheral chuck of described reactor, described heating unit is provided with vapours import and the vapours floss hole that is communicated with described vapours device, described cooling unit is provided with cooling water inlet and the cooling water overfall that is communicated with described chilled water unit, described vapours import and described cooling water overfall are positioned at the top of described reactor, and described cooling water inlet and described vapours floss hole are positioned at the bottom of described reactor.
2. ureaformaldehyde process units as claimed in claim 1 is characterized in that: described heating unit and described cooling unit shape in the shape of a spiral extend along described reactor outer surface.
3. ureaformaldehyde process units as claimed in claim 1 is characterized in that: the bottom of described reactor is located in described ureaformaldehyde outlet, and the ureaformaldehyde that is connected with a shower nozzle will react formation by rear pump sprays from described shower nozzle.
4. ureaformaldehyde process units as claimed in claim 3 is characterized in that: between described ureaformaldehyde outlet and the described rear pump ureaformaldehyde flowmeter is installed.
5. ureaformaldehyde process units as claimed in claim 1 is characterized in that: described formaldehyde storage tank is connected with described reactor by delivery pump, and by described delivery pump the formaldehyde in the described formaldehyde storage tank is transported in the described reactor.
6. ureaformaldehyde process units as claimed in claim 5 is characterized in that: between described formaldehyde storage tank and the described delivery pump formaldehyde flowmeter is installed.
7. ureaformaldehyde process units as claimed in claim 1 is characterized in that: described reactor comprises kettle and places the rabbling mechanism of described kettle inside that the top of described kettle and bottom are all to outer lug.
8. ureaformaldehyde process units as claimed in claim 1 is characterized in that: described reactor is provided with temperature measuring equipment, is used to measure described reactor temperature inside, and measurement result is transported to the turnover of control device with control vapours or cooling water.
9. ureaformaldehyde process units as claimed in claim 1 is characterized in that: described water inlet, formaldehyde import, urea import, vapours import, cooling water inlet, vapours floss hole, cooling water overfall and ureaformaldehyde exit are equipped with control valve.
10. ureaformaldehyde process units as claimed in claim 1 is characterized in that: described reactor is two, is arranged side by side, and is connected with described formaldehyde storage tank, urea storage tank, vapours device and chilled water unit respectively.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010106165457A CN102120173A (en) | 2010-12-30 | 2010-12-30 | Urea-formaldehyde production device in compound fertilizer preparation process |
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| CN2010106165457A CN102120173A (en) | 2010-12-30 | 2010-12-30 | Urea-formaldehyde production device in compound fertilizer preparation process |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580656A (en) * | 2012-02-22 | 2012-07-18 | 南通诚信氨基酸有限公司 | Reaction kettle improvement device for production of glycylglutamine dipeptide |
| CN103537116A (en) * | 2012-07-18 | 2014-01-29 | 佳木斯三江水飞蓟素制品有限公司 | Silibinin extraction tank cooling device |
| CN107353168A (en) * | 2017-09-13 | 2017-11-17 | 中化吉林长山化工有限公司 | The production method and system of aldehydes slow-release compound fertilizer containing organic matter |
| CN109012542A (en) * | 2018-08-13 | 2018-12-18 | 芜湖维软新材料有限公司 | The reaction kettle structure of thermal energy utilization rate in a kind of raising kettle |
| CN111203160A (en) * | 2020-01-18 | 2020-05-29 | 上海贝辉木业有限公司 | System of glue production system |
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| CN1192383A (en) * | 1996-12-07 | 1998-09-09 | 德古萨股份公司 | Process for reducing or avoiding foam prodn. during chemical and physical materials conversion processes and device for preforming this process |
| CN201216932Y (en) * | 2008-07-05 | 2009-04-08 | 汕头市鑫源化工有限公司 | Reaction still |
| CN201445956U (en) * | 2009-07-14 | 2010-05-05 | 南京科盛环保科技有限公司 | Automatic production equipment for chemical polymers |
| CN201534084U (en) * | 2009-10-16 | 2010-07-28 | 江苏洪流化工机械有限公司 | Double chuck type heat transfer reaction kettle |
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Patent Citations (4)
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| CN1192383A (en) * | 1996-12-07 | 1998-09-09 | 德古萨股份公司 | Process for reducing or avoiding foam prodn. during chemical and physical materials conversion processes and device for preforming this process |
| CN201216932Y (en) * | 2008-07-05 | 2009-04-08 | 汕头市鑫源化工有限公司 | Reaction still |
| CN201445956U (en) * | 2009-07-14 | 2010-05-05 | 南京科盛环保科技有限公司 | Automatic production equipment for chemical polymers |
| CN201534084U (en) * | 2009-10-16 | 2010-07-28 | 江苏洪流化工机械有限公司 | Double chuck type heat transfer reaction kettle |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580656A (en) * | 2012-02-22 | 2012-07-18 | 南通诚信氨基酸有限公司 | Reaction kettle improvement device for production of glycylglutamine dipeptide |
| CN103537116A (en) * | 2012-07-18 | 2014-01-29 | 佳木斯三江水飞蓟素制品有限公司 | Silibinin extraction tank cooling device |
| CN107353168A (en) * | 2017-09-13 | 2017-11-17 | 中化吉林长山化工有限公司 | The production method and system of aldehydes slow-release compound fertilizer containing organic matter |
| CN109012542A (en) * | 2018-08-13 | 2018-12-18 | 芜湖维软新材料有限公司 | The reaction kettle structure of thermal energy utilization rate in a kind of raising kettle |
| CN111203160A (en) * | 2020-01-18 | 2020-05-29 | 上海贝辉木业有限公司 | System of glue production system |
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Application publication date: 20110713 |