CN101920185A

CN101920185A - Stirring device added into furfural hydrolysis reactor

Info

Publication number: CN101920185A
Application number: CN2009101493077A
Authority: CN
Inventors: 武建民
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-06-09
Filing date: 2009-06-09
Publication date: 2010-12-22

Abstract

The invention discloses a stirring device added into a furfural hydrolysis reactor, and the stirring device can increase the air permeability of raw materials in the reactor, enable the internal temperature of the raw materials to be balanced, enable generated furfural gas to be smoothly discharged from the reactor and avoid resin which is glued to the reactor wall, thus increasing the production. The method comprises the following steps: a motor reducer unit is added to a cover of the hydrolysis reactor, power is transmitted to a stirring central shaft in the hydrolysis reactor through a transmission shaft which is sealed with the cover, and stirring blades on the central shaft are driven to rotate, which enables the raw materials in the reactor to move up and down, thus achieving the aim of ventilation.

Description

Stirring device added into furfural hydrolysis reactor

Technical field

The present invention relates to a kind ofly increases agitating device in fixed furfural hydrolysis reactor, can increase gas permeability, reaches the purpose that makes furfural increase output.

Background technology

The hydrolysis kettle of producing at present furfural in the world is divided into two kinds, a kind of is the rotary hydrolysis still of spherical tank, a kind of is fixed hydrolysis kettle, the rotary hydrolysis still of the spherical tank utmost point resembles the pot of traditional popcorn, the centre is spheroidal, limit heating edge rotation, raw material in the still is heated evenly, the furfural gas that is produced can discharge timely, can not produce resin, cause productive rate higher, more owing to be continous way production, output is very big, and the fixed hydrolysis kettle utmost point resembles a microscler big thermos flask, after raw material is loaded into from charging aperture, the logical steam pressurized, heated in bottom, raw material compacting in still maintains static, the inner uneven phenomenon of being heated that produces, the furfural steam that is produced can not all be discharged timely, causing a part of furfural gas owing to can not discharge smoothly for a long time, and become resin, be bonded at hydrolysis kettle inwall and feed particles outer surface, productive rate is reduced, because the resin on the hydrolysis kettle inwall constantly thickens, the volume in the hydrolysis kettle is diminished, charging reduces, output reduces, the removing of being forced to stop production influences ordinary production, and two kinds of hydrolysis kettles are compared, the rotary hydrolysis still of spherical tank advantage is more, but because the rotary hydrolysis still of spherical tank costs an arm and a leg, output is too big, raw material purchase difficulty, so just be not suitable for the national conditions of China, so all furfural mills of China have all adopted fixed hydrolysis kettle, but output is little, productive rate is about 2/3rds of the rotary hydrolysis still of spherical tank, in order to improve productive rate, just should make the raw material of raw material in the rotary hydrolysis still of spherical tank in the fixed hydrolysis kettle, in still, move.

Summary of the invention

Technical problem to be solved by this invention is that the raw material in the fixed hydrolysis kettle is moved in still, so just can increase Air permenbility, raw material is heated evenly, and the furfural gas that generates in the raw material can discharge from raw material, does not go out and generates resin waste and fall and be unlikely to row.

Its technical scheme is to increase by a cover agitating device in fixed furfural hydrolysis reactor, when the motor reducer outside the hydrolysis kettle drives the agitating device rotation, the sheet that stirs in the still is rotated, stir the sheet angle of blade in the shape of a spiral, raw material upwards promotes in will be still when rotating, blade in the past after, raw material falls, the formation raw material moves up and down, to reach ventilative purpose.

Agitating device is divided into part and the outer part of still in the still, part is that cylindrical center establishes the position a long central shaft in columned furfural hydrolysis reactor in the still, this long central shaft upper end reaches the hydrolysis kettle charging aperture and hangs down the position of some slightly, not influence charging and capping is principle, the lower end reaches the top of hydrolysis kettle slag-drip opening, not influence deslagging is principle, be the shake of minister of defense's central shaft, the axle centre position is provided with anti-shake support, the upper end of central shaft is provided with shaft coupling, link to each other with the outer power input shaft shaft coupling of still, shaft coupling is detachable, and after the capping of hydrolysis kettle charging aperture, the shaft coupling of central shaft upper end can be communicated with the power input shaft shaft coupling on the seal closure in the still, power is input on the interior central shaft of still, drives the central shaft rotation.The middle and lower part of central shaft is fixed with many sheets that stir to the propeller blade formula, this stirs sheet when rotating with central shaft, angle of inclination by blade upwards holds up the raw material in the still, after blade turns over, raw material falls by deadweight, and moving up and down of raw material can make the interior raw material of still ventilative, so just can make the raw material internal temperature identical, and established furfural gas in the raw material discharged, and be unlikely to form resin.The central shaft lower end is sitting in the axle support.The outer part of still is power section, mainly form by motor reducer and power input shaft, motor reducer is fixed on the hydrolysis kettle seal closure, the output shaft of motor reducer links to each other with the upper end of power input shaft, power input shaft passes the centre bore of hydrolysis kettle seal closure, its lower end shaft coupling links to each other with the shaft coupling of central shaft upper end in the still, drive central shaft rotation in the still, when power input shaft passes the hydrolysis kettle seal closure, must with hydrolysis kettle seal closure centre bore sealed air-tight, because the hydrolysis kettle temperature is higher, so motor reducer should be used support frame height, in order to avoid overheated.

After furfural hydrolysis reactor adds this cover agitating device, the raw material gas permeability is increased, make material temperature unanimity in the still, the furfural gas of generation can be discharged smoothly, has avoided becoming resin, and furfural output is improved.

Description of drawings

Fig. 1 is the structural representation of technical solution of the present invention.

The specific embodiment

As shown in Figure 1, in the center of furfural hydrolysis reactor 7 central shaft 6 is housed, the middle and lower part of central shaft 6 be equipped with many group screws leaf stir sheet 9, anti-shake support 8 is equipped with at the middle part of central shaft 6, the lower end of central shaft 6 is equipped with the bottom axle and is supported 10, detachable shaft coupling 5 is equipped with in the upper end, be connected with the lower end of power input shaft 3, shaft coupling 5 is detachable, and the upper end of power input shaft 3 is connected with motor reducer 1, power is passed on the central shaft 6, sheet 9 rotation is stirred in drive, is hydrolyzed the roasting heat of temperature of still 7 in order to prevent motor reducer 1, and ad hoc to have found support 2 high 1 of motor reducer, when power input shaft 3 passes seal closure 4, need to adopt the axis hole sealing.

Claims

1. stirring device added into furfural hydrolysis reactor, by motor reducer (1), power input shaft (3), detachable shaft coupling (5), central shaft (6), anti-shake support (8), stir sheet (9), bottom axle and support (10) and form, it is characterized by seal closure (4) top that motor reducer (1) is located at furfural hydrolysis reactor (7), and with support (2) frame height.

2. according to claim 1: it is characterized by power input shaft (3) upper end and link to each other with motor reducer (1), the lower end is connected with detachable shaft coupling (5), and links to each other with central shaft (6) by detachable shaft coupling (5).

3. according to claim 1: it is characterized by central shaft (6) middle part and be provided with anti-shake support (8), the bottom is provided with axle and supports (10).

4. according to claim 1: it is characterized by central shaft (6) and propeller blade formula and stir sheet (9) and be contained in the hydrolysis kettle (7), what many group propeller blade formulas were equipped with in central shaft (6) middle and lower part stirs sheet (9).

5. according to claim 1: as to need when it is characterized by power input shaft (3) and passing hydrolysis kettle seal closure (4) seal with seal closure (4) axis hole.