CN201713454U - Formaldehyde preparation device - Google Patents
Formaldehyde preparation device Download PDFInfo
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- CN201713454U CN201713454U CN2010201267479U CN201020126747U CN201713454U CN 201713454 U CN201713454 U CN 201713454U CN 2010201267479 U CN2010201267479 U CN 2010201267479U CN 201020126747 U CN201020126747 U CN 201020126747U CN 201713454 U CN201713454 U CN 201713454U
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- methanol
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- absorption tower
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Abstract
The utility model relates to the technical field of formaldehyde production equipment, in particular to a formaldehyde preparation device with simplified process flow. The formaldehyde preparation device is provided with a ternary gas processor, a reactor and a combined absorption tower which methanol mixed gas passes through sequentially. The combined absorption tower is connected with a circulation pump. The ternary gas processor comprises a methanol evaporator arranged at the bottom end, an erasing device arranged at the upper end of the methanol evaporator, a superheat assembly arranged at the upper end of the erasing device and a fire retardant filter. The combined absorption tower is a distilling absorption tower. The distilling absorption tower comprises a tower bottom section for absorbing gas and redistributing the gas, a distilling conversion section for separating methanol and converting gas and liquid, an absorption section for controlling liquid level, a float valve section for absorbing methanol and a tower top section for separating gas from liquid. The formaldehyde preparation device has the advantages of low conversion, long running period, low system resistance, low power consumption and energy consumption, long using period of a catalyst, low control of formaldehyde production and the oxygen temperature, less negative reaction, low requirements on system interference factors and reduction of operation difficulty.
Description
Technical field
The utility model relates to the production unit technical field of formaldehyde, especially a kind of prepared formaldehyde device of simplifying technical process.
Background technology
At present, the China silver method Formaldehyde Production was through more than 50 years courses of trials and hardship, all obtained great achievement in every respect, energy consumption is the air feed type outside consumption gas type changes into, material consumption is from 500kg methyl alcohol/T 37% formaldehyde 445kg methyl alcohol/T 37% formaldehyde till now, production capacity develops into more than 2,000 ten thousand tons of today from the hundreds of thousands of ton, and silver-colored method production production capacity and technology have been in rank first.Formaldehyde Production develops into the production that becomes more meticulous by extensive style, and to the road of career development, research is exactly to improve turnover ratio in technology and operation by simply.Present many factories manage in Formaldehyde Production, and formaldehyde process optimization, catalyst are selected for use and installed all and do well, but the material consumption level can only remain on about 445kg.
Domestic Formaldehyde Production mainly adopts two kinds of operational paths, traditional technology and tail gas circulation method technology, traditional technology is to produce formaldehyde with the ternary gas oxidizing reaction, tail gas circulation method technology is to adopt the reaction of quaternary gas cyaniding to produce formaldehyde, the reaction absorption mechanism is basic identical, just the configuration of reaction member equipment configuration is different, tail gas circulation method technology increases exhaust system, remove reaction heat with tail gas instead of part batching water vapor, can accomplish 50% left and right sides concentration formaldehyde products, and two kinds of preparation method's pursuits all is to improve the transformation efficiency selectivity, all be as systems engineering Formaldehyde Production, make every effort to equipment, electric, instrument, starting material, operation and each unit of personnel, link is accomplished meticulous, reaches high conversion.Above way can not reduce negative reaction simultaneously and guarantee not reduce productive rate at the raising transformation efficiency.
The utility model content
The technical problems to be solved in the utility model is: shortcoming and deficiency in order to solve above-mentioned existence provide a kind of prepared formaldehyde device.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of prepared formaldehyde device, has the ternary gas disposal device that methanol mixed gas passes through successively, reactor and combined absorbing tower, be connected with recycle pump on the combined absorbing tower, ternary gas disposal device comprises the methanol evaporator that is arranged on the bottom, be arranged on the dauber that removes of methanol evaporator upper end, be arranged on the overheated assembly and the fire-retardant filter that remove the dauber upper end, combined absorbing tower is the distillation absorption tower, and the distillation absorption tower comprises from bottom to top and absorbs section at the bottom of the tower that gas distributes again, the distillation transformation segment that methyl alcohol separates and gas-liquid is changed, the absorber portion of liquid level control, float valve section and the isolating tower top section of gas-liquid that the methyl alcohol aspiration is received.
In order to prolong the filter material life cycle, good filtration effect, described back-fire relief filters gas bag and draws together heating component, spark arrester and combined strainer.
The beneficial effects of the utility model are that prepared formaldehyde device of the present utility model is changed low; The driving cycle is long, and systemic resistance is little, and power consumption, energy consumption are low, and the catalyst life cycle is long; Formaldehyde Production, oxygen temperature control are low, and negative reaction is few, the system interference factor are required low, have reduced operation easier.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a structural representation of the present utility model.
Among the figure 1, ternary gas disposal device, 2, reactor, 3, combined absorbing tower, 31, section at the bottom of the tower, 32, the distillation transformation segment, 33, absorber portion, 34, the float valve section, 35, tower top section, 4, recycle pump.
Embodiment
In conjunction with the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the synoptic diagram of simplification, basic structure of the present utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
The prepared formaldehyde device of preferred forms as shown in Figure 1, has the ternary gas disposal device 1 that methanol mixed gas passes through successively, reactor 2 and combined absorbing tower 3, be connected with recycle pump 4 on the combined absorbing tower 3, it is characterized in that: ternary gas disposal device 1 comprises the methanol evaporator that is arranged on the bottom, be arranged on the dauber that removes of methanol evaporator upper end, be arranged on the overheated assembly and the fire-retardant filter that remove the dauber upper end, combined absorbing tower 3 is the distillation absorption tower, the distillation absorption tower comprises from bottom to top and absorbs section 31 at the bottom of the tower that gas distributes again, the distillation transformation segment 32 that methyl alcohol separates and gas-liquid is changed, the absorber portion 33 of liquid level control, float valve section 34 and the isolating tower top section 35 of gas-liquid that the methyl alcohol aspiration is received, back-fire relief filters gas bag and draws together heating component, spark arrester and combined strainer.Prolonged the life cycle of filter material, good filtration effect makes easy for installation.On transformation segment 33 sparger is set, makes circulation big, resistance is little, is evenly distributed.
Methyl alcohol of the present utility model is squeezed into by methanol pump from the methyl alcohol scale tank and is entered the treater bottom, the methanol evaporator that enters in the treater is preceding by the variable valve dominant discharge, enter a certain amount of air that brings by gas blower from base of evaporator simultaneously, binary mixture to methyl alcohol in the vaporizer and air heats, then binary mixture adds a certain amount of saturated vapor after removing droplet from the top, be made into methyl alcohol with finite concentration proportioning, the three-element mixed gas body of air and water vapor, the three-element mixed gas body enters overheated assembly, heat by steam, to 110 ℃ after fire-retardant filter enter in the reactor 2 that catalyzer is housed after filtering, under 610 ℃ of high temperature, carry out methanol oxidation and deoxygenation by touching the coal seam from top to bottom, generation has the gas of formaldehyde, the gas that generates gathers cold by extremely cold section of reactor 2 rapidly, then it being sent into the absorption tower absorbs, the finished product that will contain formaldehyde enters that the dealcoholysis device carries out can aldehyde, alcohol separates, alcohol is stayed and is entered the treater use in the system after treatment, aldehyde is that finished product enters the formaldehyde test tank, no absorption gas enters his top of absorption and absorbs, the rare aldehyde liquid that absorbs is got with pump, part self-circulation in tower absorbs, a part enters the bottom, absorption tower and is used for replenishing absorption liquid, the unabsorbed tail gas in top, absorption tower is sent in the treater and is burnt, liberated heat produces steam indirectly, but the steam plenum system uses outward.
With above-mentioned foundation desirable embodiment of the present utility model is enlightenment, and by above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the specification sheets, must determine its technical scope according to the claim scope.
Claims (2)
1. prepared formaldehyde device, has the ternary gas disposal device (1) that methanol mixed gas passes through successively, reactor (2) and combined absorbing tower (3), be connected with recycle pump (4) on the combined absorbing tower (3), it is characterized in that: ternary gas disposal device (1) comprises the methanol evaporator that is arranged on the bottom, be arranged on the dauber that removes of methanol evaporator upper end, be arranged on the overheated assembly and the fire-retardant filter that remove the dauber upper end, combined absorbing tower (3) is the distillation absorption tower, and the distillation absorption tower comprises from bottom to top and absorbs section (31) at the bottom of the tower that gas distributes again, the distillation transformation segment (32) that methyl alcohol separates and gas-liquid is changed, the absorber portion (33) of liquid level control, float valve section (34) and the isolating tower top section of gas-liquid (35) that the methyl alcohol aspiration is received.
2. prepared formaldehyde device according to claim 1 is characterized in that: described back-fire relief filters gas bag and draws together heating component, spark arrester and combined strainer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201267479U CN201713454U (en) | 2010-02-04 | 2010-02-04 | Formaldehyde preparation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201267479U CN201713454U (en) | 2010-02-04 | 2010-02-04 | Formaldehyde preparation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201713454U true CN201713454U (en) | 2011-01-19 |
Family
ID=43459454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201267479U Expired - Fee Related CN201713454U (en) | 2010-02-04 | 2010-02-04 | Formaldehyde preparation device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201713454U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104829438A (en) * | 2015-04-01 | 2015-08-12 | 田宝峰 | Formaldehyde production method and apparatus thereof |
-
2010
- 2010-02-04 CN CN2010201267479U patent/CN201713454U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104829438A (en) * | 2015-04-01 | 2015-08-12 | 田宝峰 | Formaldehyde production method and apparatus thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: JIANGSU KAIMAO CHEMICAL TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: JIANGSU HENGMAO MACHINERY MANUFACTURE CO., LTD. Effective date: 20140429 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 213169 CHANGZHOU, JIANGSU PROVINCE TO: 214000 WUXI, JIANGSU PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20140429 Address after: Xuelang Street Ge Dai Binhu District of Jiangsu Province in 214000 communities in Wuxi City Patentee after: Jiangsu Kaimao Chemical Technology Co., Ltd. Address before: 213169, Jiangsu province Changzhou city Wujin District snow town industrial concentration area Patentee before: Jiangsu Hengmao Machine Manufacture Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110119 Termination date: 20180204 |