CN201952384U - Acid-free continuous automatic furfural hydrolysis system - Google Patents
Acid-free continuous automatic furfural hydrolysis system Download PDFInfo
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- CN201952384U CN201952384U CN2011200931611U CN201120093161U CN201952384U CN 201952384 U CN201952384 U CN 201952384U CN 2011200931611 U CN2011200931611 U CN 2011200931611U CN 201120093161 U CN201120093161 U CN 201120093161U CN 201952384 U CN201952384 U CN 201952384U
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- furfural
- hydrolysis
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- automatic
- anacidity
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Abstract
An acid-free continuous automatic furfural hydrolysis system comprises a feed unit, a hydrolysis unit and a residue treatment unit. The residue treatment unit comprises a solid-liquid separation unit and a raw liquor storage tank, a secondary steam generator is arranged between the hydrolysis unit and the solid-liquid separation unit, the solid-liquid separation unit comprises a furfural residue separator, a self-evaporator, a hydrocyclone, a conveying belt and a rotary residue discharger. Compared with the prior art, the acid-free continuous automatic furfural hydrolysis system has the advantages of no additional acid and continuous hydrolysis, and is higher in automation level, and steam utilization rate is higher as the secondary steam generator is added. Owing to an additional stirring device, the utilization rate of raw materials is increased, reaction of the raw materials is more sufficient, acid content of the residue is low while the residue can be treated properly, yield of furfural hydrolysis is increased, production cost is reduced, and the system is more environment-friendly.
Description
Technical field
The utility model belongs to furfural production preparation field, specifically a kind of furfural anacidity continuous and automatic hydrolysis system.
Background technology
Furfural, have another name called furtural, it has two two keys and an aldehyde radical on the furan nucleus, this unique chemical structure, can make it that reactions such as oxidation, hydrogenation, chlorination, nitrated and condensation take place, generate a lot of Chemicals, so be widely used in a plurality of production fields such as agricultural chemicals, medicine, petrochemical industry, foodstuff additive, casting.
Furfural is to be rich in the vegetable fibre of piperylene, is raw material production as corn cob, bagasse, straw, corn stalk, cotton seed hull, rice husk etc., and its principle is that piperylene at first is hydrolyzed into pentose in the vegetable fibre, and the pentose dehydration generates furfural then.
The method of traditional mode of production furfural for adopt the reaction that is hydrolyzed of a hydrolysis kettle, add add sour as catalyzer, the method for batch production, also there are some shortcomings in this method:
1, only adopt a hydrolytic reaction pot to react, make raw material reaction incomplete easily, furaldehyde yield is low, makes a low multiple use.
2, adding adds acid and need at high temperature admix aqueous acid as catalyzer, even highly corrosion resistant steel alloy also serious corrosion can take place, and production cost is higher.
3, batch production method steam consumption is big, produces a large amount of liquid and waste slag produced timely processing that are difficult to, and is unfavorable for boosting productivity and environmental protection.
The utility model content
The purpose of this utility model is to provide a kind of furfural anacidity continuous and automatic hydrolysis system, and this system has and do not have the characteristics that acid, continuous hydrolysis, furfural productive rate height and waste water and dregs are in time handled that add.
The technical scheme in the invention for solving the technical problem is: furfural anacidity continuous and automatic hydrolysis system, it is characterized in that, comprise feed unit, hydrolysis unit and residue treatment unit, described residue treatment unit comprises solid-liquid separation unit and stoste storage tank, is provided with secondary steam generator between hydrolysis unit and the solid-liquid separation unit; Described feed unit comprises feeding machine and automatic control feed system, and hydrolysis unit comprises the continuous hydrolysis reactor, and solid-liquid separation unit comprises furfural dregs separator, flash-pot, wet cyclone, travelling belt and rotation slag tapping equipment; The slag-drip opening of described continuous hydrolysis reactor is connected with the furfural dregs separator, and the aldehyde vapor outlet connects secondary steam generator, flash-pot and wet cyclone successively; The liquid outlet below of wet cyclone is provided with the rotation slag tapping equipment, and the discharge port below of furfural dregs separator is provided with travelling belt, and the end of travelling belt leads to rotation slag tapping equipment place; The below of rotation slag tapping equipment is provided with the stoste storage tank, and the steam drain place of wet cyclone is provided with the pipeline that feeds the stoste storage tank.
Described feeding machine is a screw feeder.
Described automatic control feed system comprises controller and hydraulic brake plate valve, and described hydraulic brake plate valve is installed on the feeding-passage of described continuous hydrolysis reactor.
Described continuous hydrolysis reactor is provided with automatic control dreg removing system, described automatic control dreg removing system comprises two transmitters that are installed on its cylinder lateral wall and the deslagging motorized valve that is installed in its slag-drip opening place, described two transmitters are set up in parallel from top to bottom, and two transmitters all are connected with the deslagging motorized valve.
The top of described furfural dregs separator is provided with aldehyde vapour condenser.
Described flash-pot is provided with the flash-pot Controlling System, described flash-pot Controlling System comprises the transmitter that is installed on the flash-pot cylinder lateral wall and is installed in the motorized valve in flash-pot hydrolyzed solution exit that described transmitter is connected with described motorized valve.
Described wet cyclone is provided with automatic control system, and described automatic control system comprises the transmitter that is installed on the wet cyclone cylinder lateral wall and be installed in the motorized valve at wet cyclone liquid outlet place that described transmitter is connected with described motorized valve.
The pipeline that the steam drain place of described wet cyclone leads to described stoste storage tank is provided with condenser.
The steam outlet of described flash-pot is provided with pipeline, and described pipeline is provided with condenser.
Described rotation slag tapping equipment is the travelling belt that has fine and closely woven mesh.
The beneficial effects of the utility model are:
1, be provided with secondary steam generator, contain aldehyde steam through secondary steam generator, heat energy is rationally utilized, and reduces the aldehyde contenting amount in the residue, improves the yield of hydrolysis furfural.
2, in the continuous hydrolysis reactor, the input of steam is relatively more constant, can adopt the method for " spontaneous acid-catalyzed hydrolysis ", do not have and add acid, catalyzer is the acetate that produces of raw material hydrolysis self, formic acid and other carboxylic acids on a small quantity, does not have to add acid and greatly reduce corrodibility and production cost.
3, continuous hydrolysis has been realized continuously feeding and continuous discharging slag, and with advancing with going out, residue is easily handled, and need not to build huge feed bin, reduces floor space, reduces cost.
4, be provided with the residue treatment unit, waste water and waste liquid is handled timely and is reclaimed, economic environmental protection.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Among the figure: 1 feeding machine, 2 control feed system, 3 continuous hydrolysis reactors automatically, 4 high pressure steam imports, 5 control dreg removing system, 6 furfural dregs separators automatically, 7 aldehyde vapour condensers, 8 travelling belts, 9 secondary steam generators, 10 flash-pots, 11 flash-pot Controlling System, 12 wet cyclones, 13 automatic control systems, 14 rotation slag tapping equipments, 15 condensers, 16 stoste storage tanks.
Embodiment
The utility model will be further described below in conjunction with Figure of description:
As shown in Figure 1.Furfural anacidity continuous and automatic hydrolysis system comprises feed unit, hydrolysis unit and residue treatment unit, and described residue treatment unit comprises solid-liquid separation unit and stoste storage tank 16, is provided with secondary steam generator 9 between hydrolysis unit and the solid-liquid separation unit; Described feed unit comprises feeding machine 1 and automatic control feed system 2, and hydrolysis unit comprises continuous hydrolysis reactor 3, and solid-liquid separation unit comprises furfural dregs separator 6, flash-pot 10, wet cyclone 12, travelling belt 8 and rotation slag tapping equipment 14; The slag-drip opening of described continuous hydrolysis reactor 3 is connected with furfural dregs separator 6, and the aldehyde vapor outlet connects secondary steam generator 9, flash-pot 10 and wet cyclone 12 successively; The liquid outlet below of wet cyclone 12 is provided with rotation slag tapping equipment 14, and the discharge port below of furfural dregs separator 6 is provided with travelling belt 8, and the end of travelling belt 8 leads to rotation slag tapping equipment 14 places; The below of rotation slag tapping equipment 14 is provided with stoste storage tank 16, and the steam drain place of wet cyclone 12 is provided with the pipeline that feeds stoste storage tank 16.
Described feeding machine 1 is a screw feeder.
Described automatic control feed system comprises controller and hydraulic brake plate valve, and described hydraulic brake plate valve is installed on the feeding-passage of described continuous hydrolysis reactor 3.In order to realize autofeed.
Described continuous hydrolysis reactor 3 is provided with automatic control dreg removing system 5, described automatic control dreg removing system 5 comprises two transmitters that are installed on its cylinder lateral wall and the deslagging motorized valve that is installed in its slag-drip opening place, described two transmitters are set up in parallel from top to bottom, and two transmitters all are connected with the deslagging motorized valve.
The top of described furfural dregs separator 6 is provided with aldehyde vapour condenser 7.
Described flash-pot 10 is provided with flash-pot Controlling System 11, described flash-pot Controlling System 11 comprises the transmitter that is installed on flash-pot 10 cylinder lateral walls and is installed in the motorized valve in flash-pot 10 hydrolyzed solution exits that described transmitter is connected with described motorized valve.
Described wet cyclone 12 is provided with automatic control system 13, described automatic control system 13 comprises the transmitter that is installed on wet cyclone 12 cylinder lateral walls and is installed in the motorized valve at wet cyclone 12 liquid outlet places that described transmitter is connected with described motorized valve.
The pipeline that the steam drain place of described wet cyclone 12 leads to described stoste storage tank 16 is provided with condenser 15.
The steam outlet of described flash-pot 10 is provided with pipeline, and described pipeline is provided with condenser.
Described rotation slag tapping equipment 14 is for having the travelling belt of fine and closely woven mesh.
Principle of work of the present utility model is: feeding machine 1 transports raw material, raw material is added by the charging bole of continuous hydrolysis reactor 3, automatically the controller of control feed system 2 is alternately opened by two hydraulic brake plate valves of digital control system control, and raw material enters the cylindrical shell of continuous hydrolysis reactor 3 through two hydraulic brake plate valves of alternately opening.
High pressure steam is reacted by cylindrical shell and the raw material that high pressure steam import 4 enters continuous hydrolysis reactor 3.When the height of raw material in continuous hydrolysis reactor 3 cylindrical shells was higher than automatic control dreg removing system 5 and is positioned at the transmitter of vertex, this transmitter sent signal and makes the deslagging motorized valve open to carry out deslagging; When the raw material height is lower than the transmitter that is positioned at the below, the transmitter that is positioned at the below sends signal makes the deslagging motorized valve close, stop deslagging, realize the continuously feeding and the deslagging of control automatically thus, make 3 intravital raw material height dimension of continuous hydrolysis reactor be held in suitable level, and the slag storage is few.
The aldehyde vapour that continuous hydrolysis reactor 3 aldehyde vapor outlets are discharged produces secondary steam through secondary steam generator 9, secondary steam enters flash-pot 10, steam in the flash-pot 10 is discharged from the steam drain of top, enters distillation tower through piping, and steam can be through condenser condenses on pipeline.Hydrolysis furfural liquid in the flash-pot 10 can enter wet cyclone 12 through the hydrolyzed solution outlet.Flash-pot Controlling System 11 can automatic control hydrolysis liquid outlet be discharged furfural liquid.
Furfural liquid is through falling behind the wet cyclone 12 on the rotation slag tapping equipment 14, and liquid flows into stoste storage tank 16 through the mesh of rotation slag tapping equipment 14, and solid residue is transported to relevant treatment equipment or is carried boiler combustion by rotation slag tapping equipment 14.Steam in the wet cyclone 12 flows into stoste storage tank 16 by pipeline after 15 condensations of the condenser on the pipeline.Automatic control system 13 is control hydrolysis liquid outlet discharge opeing automatically, and avoids air admission for wet cyclone 12 leaves fluid-tight.
The aldehyde steam that contains in the furfural dregs separator 6 is gone into water pot through 7 condensations of vertical aldehyde vapour condenser are laggard, furfural dregs is discharged from the discharge port of bottom and is fallen on the travelling belt 8, travelling belt 8 is delivered to rotation slag tapping equipment 14 with furfural dregs, liquid flows into stoste storage tank 16 through the mesh of rotation slag tapping equipment 14, and solid residue is transported to relevant treatment equipment or is carried boiler combustion by rotation slag tapping equipment 14.
Except that the described technical characterictic of specification sheets, all the other technical characterictics are those skilled in the art's known technology.
The above, principles more of the present utility model just explain through diagrams, this specification sheets be not be the utility model to be confined to shown in described concrete structure and the scope of application, so every the corresponding modify and equivalent that might be utilized all belongs to the claim that the utility model is applied for.
Claims (10)
1. furfural anacidity continuous and automatic hydrolysis system, it is characterized in that, comprise feed unit, hydrolysis unit and residue treatment unit, described residue treatment unit comprises solid-liquid separation unit and stoste storage tank, is provided with secondary steam generator between hydrolysis unit and the solid-liquid separation unit; Described feed unit comprises feeding machine and automatic control feed system, and hydrolysis unit comprises the continuous hydrolysis reactor, and solid-liquid separation unit comprises furfural dregs separator, flash-pot, wet cyclone, travelling belt and rotation slag tapping equipment; The slag-drip opening of described continuous hydrolysis reactor is connected with the furfural dregs separator, and the aldehyde vapor outlet connects secondary steam generator, flash-pot and wet cyclone successively; The liquid outlet below of wet cyclone is provided with the rotation slag tapping equipment, and the discharge port below of furfural dregs separator is provided with travelling belt, and the end of travelling belt leads to rotation slag tapping equipment place; The below of rotation slag tapping equipment is provided with the stoste storage tank, and the steam drain place of wet cyclone is provided with the pipeline that feeds the stoste storage tank.
2. furfural anacidity continuous and automatic hydrolysis system according to claim 1 is characterized in that described feeding machine is a screw feeder.
3. furfural anacidity continuous and automatic hydrolysis system according to claim 1 is characterized in that described automatic control feed system comprises controller and hydraulic brake plate valve, and described hydraulic brake plate valve is installed on the feeding-passage of described continuous hydrolysis reactor.
4. furfural anacidity continuous and automatic hydrolysis system according to claim 3, it is characterized in that, described continuous hydrolysis reactor is provided with automatic control dreg removing system, described automatic control dreg removing system comprises two transmitters that are installed on its cylinder lateral wall and the deslagging motorized valve that is installed in its slag-drip opening place, described two transmitters are set up in parallel from top to bottom, and two transmitters all are connected with the deslagging motorized valve.
5. furfural anacidity continuous and automatic hydrolysis system according to claim 1 is characterized in that the top of described furfural dregs separator is provided with aldehyde vapour condenser.
6. furfural anacidity continuous and automatic hydrolysis system according to claim 1, it is characterized in that, described flash-pot is provided with the flash-pot Controlling System, described flash-pot Controlling System comprises the transmitter that is installed on the flash-pot cylinder lateral wall and is installed in the motorized valve in flash-pot hydrolyzed solution exit that described transmitter is connected with described motorized valve.
7. furfural anacidity continuous and automatic hydrolysis system according to claim 1, it is characterized in that, described wet cyclone is provided with automatic control system, described automatic control system comprises the transmitter that is installed on the wet cyclone cylinder lateral wall and is installed in the motorized valve at wet cyclone liquid outlet place that described transmitter is connected with described motorized valve.
8. furfural anacidity continuous and automatic hydrolysis system according to claim 1 is characterized in that, the pipeline that the steam drain place of described wet cyclone leads to described stoste storage tank is provided with condenser.
9. furfural anacidity continuous and automatic hydrolysis system according to claim 1 is characterized in that the steam outlet of described flash-pot is provided with pipeline, and described pipeline is provided with condenser.
10. furfural anacidity continuous and automatic hydrolysis system according to claim 1 is characterized in that described rotation slag tapping equipment is the travelling belt that has fine and closely woven mesh.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200931611U CN201952384U (en) | 2011-04-01 | 2011-04-01 | Acid-free continuous automatic furfural hydrolysis system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200931611U CN201952384U (en) | 2011-04-01 | 2011-04-01 | Acid-free continuous automatic furfural hydrolysis system |
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| CN201952384U true CN201952384U (en) | 2011-08-31 |
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| CN2011200931611U Expired - Fee Related CN201952384U (en) | 2011-04-01 | 2011-04-01 | Acid-free continuous automatic furfural hydrolysis system |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219766A (en) * | 2011-04-01 | 2011-10-19 | 山东万盛环保科技发展有限公司 | Automatic acidless continuous furfural hydrolysis system |
| CN106432146A (en) * | 2016-09-07 | 2017-02-22 | 河北科技大学 | Equipment for manufacturing furfural from corncobs |
| CN106588835A (en) * | 2017-01-05 | 2017-04-26 | 大连理工大学 | Low-consumption continuous hydrolysis reaction apparatus and method |
-
2011
- 2011-04-01 CN CN2011200931611U patent/CN201952384U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102219766A (en) * | 2011-04-01 | 2011-10-19 | 山东万盛环保科技发展有限公司 | Automatic acidless continuous furfural hydrolysis system |
| CN106432146A (en) * | 2016-09-07 | 2017-02-22 | 河北科技大学 | Equipment for manufacturing furfural from corncobs |
| CN106588835A (en) * | 2017-01-05 | 2017-04-26 | 大连理工大学 | Low-consumption continuous hydrolysis reaction apparatus and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20150401 |
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| EXPY | Termination of patent right or utility model |