CN202164256U - Chloromethane recovery device for cellulose ether production - Google Patents
Chloromethane recovery device for cellulose ether production Download PDFInfo
- Publication number
- CN202164256U CN202164256U CN2011202275299U CN201120227529U CN202164256U CN 202164256 U CN202164256 U CN 202164256U CN 2011202275299 U CN2011202275299 U CN 2011202275299U CN 201120227529 U CN201120227529 U CN 201120227529U CN 202164256 U CN202164256 U CN 202164256U
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- China
- Prior art keywords
- chloromethane
- cylinder
- methyl chloride
- compressor
- recovery device
- 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.)
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Abstract
The utility model relates to a chloromethane recovery device for cellulose ether production, which belongs to the technical field of chemical production devices and comprises a chloromethane reactor. The chloromethane recovery device is characterized in that a gas tank, a compressor, a condenser and a storage tank are arranged behind the chloromethane reactor and are sequentially connected in a pipeline, the compressor comprises a first cylinder and a second cylinder, and a cylinder condenser is arranged between connecting pipelines of the two cylinders. Residual chloromethane after reaction can be recycled during production of hydroxypropyl methyl cellulose, the recycling rate can reach more than 80%, chloromethane utilization rate of a unit product is increased by 10 % to 15%, and accordingly, cost is saved, pollution on the environment caused by emission gas is avoided and evident economic benefits and social benefits are obtained.
Description
Technical field
The utility model relates to a kind of ether of cellulose production and uses the methyl chloride retrieving arrangement, belongs to the chemical production device technical field.
Background technology
In the production of Vltra tears, methyl chloride is a kind of main raw material(s), and based on the needs of reaction, the adding of general methyl chloride is all participated in reaction methyl chloride amount greater than reality, is excessive response.Therefore, the product end reaction finishes, and the methyl chloride that generally also remains about 20% is not participated in reaction.In present domestic Vltra tears was produced, this part methyl chloride all adopted the mode of direct discharging, does not reclaim, and this has caused raw-material waste on the one hand, has also directly caused the pollution of environment on the other hand.
The utility model content
According to above deficiency of the prior art, the utility model technical problem to be solved is: provide a kind of ether of cellulose production to use the methyl chloride retrieving arrangement, make the reaction remaining methyl chloride that finishes can reclaim again and to utilize.
The utility model solves the technical scheme that its technical problem adopted:
The methyl chloride retrieving arrangement is used in ether of cellulose production; Comprise the methyl chloride reactor drum; Its technical essential is: behind the methyl chloride reactor drum, be provided with and be connected to gas holder, compressor, condensing surface and the basin in the pipeline in turn; Compressor comprises first cylinder and second cylinder, and the cylinder condensing surface is set between the connecting pipeline of two cylinders.
The effect of cylinder condensing surface is that the gas of the HTHP of compression is able to be controlled under the suitable temperature and pressure in order to make for the first time.
Principle of work and process:
After methyl chloride reacts in the methyl chloride reactor drum and finishes; Overbottom pressure in the methyl chloride reactor drum enters gas in the gas holder through pipeline; When gas holder arrives a constant volume; Compressor and starting, compressor first cylinder is sent to the cylinder condensing surface with after the methyl chloride in the gas holder pressurization, and then is sent under with the high pressure of methyl chloride at 0.5～1.0MPa through compressor second cylinder and carries out condensation in the condensing surface; Condensed liquid gets into basin and stores, and the methyl chloride of storage can be able to utilize in the secondary response down again.
The beneficial effect that the utility model had is:
The utility model is in the production of Vltra tears; React remaining methyl chloride and obtained reclaiming utilization again; Its organic efficiency reaches more than 80%, and unit product methyl chloride utilization ratio has improved 10～15%, has both practiced thrift cost; Avoided the pollution of emission gases again, obtained tangible economic benefit and social benefit environment.
Description of drawings
Fig. 1 is the utility model structural representation.
Among the figure: 1, methyl chloride reactor drum; 2, gas holder; 3, compressor; 4, first cylinder; 5, second cylinder; 6, cylinder condensing surface; 7, basin; 8, condensing surface.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done and to further describe:
As shown in Figure 1: the methyl chloride retrieving arrangement is used in ether of cellulose production; Comprise methyl chloride reactor drum 1; Its technical essential is: be provided with in methyl chloride reactor drum 1 back and be connected to gas holder 2, compressor 3, condensing surface 8 and the basin 7 in the pipeline in turn; Compressor 3 comprises between the connecting pipeline of first cylinder 4 and 5, two cylinders of second cylinder cylinder condensing surface 6 is set.
The effect of cylinder condensing surface 6 is that the gas of the HTHP of compression is able to be controlled under the suitable temperature and pressure in order to make for the first time.
Principle of work and process:
After methyl chloride reacts in methyl chloride reactor drum 1 and finishes; Overbottom pressure in the methyl chloride reactor drum 1 enters gas in the gas holder 2 through pipeline; When gas holder 2 arrives a constant volume; Compressor and starting 3, first cylinder 4 of compressor 3 is sent to cylinder condensing surface 6 with after the methyl chloride in the gas holder 2 pressurization, and then is sent under with the high pressure of methyl chloride at 0.5～1.0MPa through second cylinder 5 of compressor 3 and carries out condensation in the condensing surface 8; Condensed liquid gets into basin 7 and stores, and the methyl chloride of storage can be able to utilize in the secondary response down again.
Use the methyl chloride retrieving arrangement through the production of the utility model ether of cellulose is installed, react remaining methyl chloride and obtained reclaiming utilization again, both practiced thrift cost, avoided the pollution of emission gases again, obtained tangible economic benefit and social benefit environment.
Claims (1)
1. the methyl chloride retrieving arrangement is used in an ether of cellulose production; Comprise the methyl chloride reactor drum; It is characterized in that: behind the methyl chloride reactor drum, be provided with and be connected to gas holder, compressor, condensing surface and the basin in the pipeline in turn; Compressor comprises first cylinder and second cylinder, and the cylinder condensing surface is set between the connecting pipeline of two cylinders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202275299U CN202164256U (en) | 2011-06-30 | 2011-06-30 | Chloromethane recovery device for cellulose ether production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202275299U CN202164256U (en) | 2011-06-30 | 2011-06-30 | Chloromethane recovery device for cellulose ether production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202164256U true CN202164256U (en) | 2012-03-14 |
Family
ID=45800096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202275299U Expired - Lifetime CN202164256U (en) | 2011-06-30 | 2011-06-30 | Chloromethane recovery device for cellulose ether production |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202164256U (en) |
-
2011
- 2011-06-30 CN CN2011202275299U patent/CN202164256U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120314 |