CN202754999U

CN202754999U - Sugar juice neutralization reactor

Info

Publication number: CN202754999U
Application number: CN 201220216075
Authority: CN
Inventors: 薛原; 黎有方; 何宁东; 周彩桃; 曹乾春
Original assignee: NANNING SUGORTECH CO Ltd
Current assignee: NANNING SUGORTECH CO Ltd
Priority date: 2012-05-15
Filing date: 2012-05-15
Publication date: 2013-02-27
Anticipated expiration: 2022-05-15

Abstract

The utility model provides a sugar juice neutralization reactor which comprises a sulfitator tail tube, a case, stirrers, lime adding tubes, a channel and an exhaust tube. At least one stirrer and at least one lime adding tube are arranged on the reactor case connected with the sulfitator tail tube, and the case is divided into at least two reaction spaces which are communicated mutually through the channel. Sugar juice flows into the reactor case through the sulfitator after being smoked with sulfur, and then reacts with sulfur dioxide sufficiently by the aid of the stirrers, lime milk is gradually added into the reactor in a staged manner and is stirred to react sufficiently, and finally sulfur dioxide reacts with the lime uniformly. Since the lime milk is added gradually in a staged manner, reaction efficiency of the lime milk and sulfur dioxide in the sugar juice is improved by means of high-speed stirring, the pH (potential of hydrogen) value of the sugar juice is stabilized, purifying efficiency is increased, and the sugar juice neutralization reactor has great significance in improving product quality and sugar yield of sugar refinery.

Description

A kind of neutralization reaction device of syrup

Technical field

The utility model belongs to the cane sugar manufacture field, relates in particular to the neutralization reaction device of using in a kind of sulfitation process craft field.

Background technology

In the sulfurous method sugar refining technology, neutralization reaction is the key link of clarifying syrup, and its principle is to add sulfurous gas and milk of lime in syrup, and reaction forms calcium sulfite with the absorption non-sugar impurities, reaches the purpose of peace and quiet syrup.

The effect of neutralization reaction has material impact to sulfurous method white sugar quality and sugar yield.Present sulfitation sugar mill is normally with after the stove drying of syrup process, in the tail pipe of pipeline sulfitator, add milk of lime, then enter a loose gas bucket and fall apart gas and simple the mixing, because a large amount of sulfurous gas and milk of lime almost adds in the syrup simultaneously, chemical reaction is very violent.And because the Main Function of loose gas bucket is the sulfurous gas that dissipates the air in the syrup and cannot absorb completely, do not consider the chemical reaction function, so loose gas bucket design volume is less, there is not agitator, this causes the mixing of sulfurous gas, milk of lime, syrup inhomogeneous, cause the purification effect of syrup low, affect quality product and sugar total recovery.In addition, fail the abundant lime that reacts and sulfurous gas along with syrup enters into the subsequent production link, produce after reaction, follow-up evaporating pot incrustation is increased, reduced evaporation performance.

In recent years sugar refinery is in order to improve neutralization reaction efficient, also uses some utility appliance to add such as: rotary hopper-type that grey device, overflow type add grey device, duct type adds grey device, shock flow type reactor, defeco-sulfitated juice enhanced reactor etc.

It is a kind of equipment of just adjusting by regulating rotating bucket rotating speed and milk of lime overflow plate that rotary hopper-type adds grey device, and the master adds grey device and prelimer can be installed on the axle simultaneously, adds simultaneously ash from opposite two aspects.Simple in structure, convenient and practical, but syrup and milk of lime, sulfurous gas reaction needed room and time have been ignored, rotary hopper-type add grey device add the complete rear syrup of ash directly enter mixed juice case then pump to subsequent processing, milk of lime, sulfurous gas, syrup have little time abundant hybrid reaction, cause the problems such as follow-up workshop section incrustation is many, poor product quality.

Overflow type adds grey device by main ash and the preliming chute of adding of move left and right (moving with the suspension pulley), regulates and accesses the milk of lime amount, reaches the purpose of regulating main, pre-ash amount.It is not high to the control accuracy of ash quantity fed that overflow type adds grey device, has control hysteresis to a certain degree, and overflow advances ash and cause fully hybrid reaction of syrup and milk of lime, and defeco-sulfitated juice pH part is too high or excessively low.

Duct type adds grey device and is mainly used in adding ash; Large when amount of finish, when the syrup flow is large, irregular for avoiding adding ash, can add ash at several overflow ports (trumpet type funnel) simultaneously.Duct type adds grey device and mixes with syrup with certain mobility, obviously is better than front two kinds of equipment, and advances ash a plurality of overflow ports are arranged, and it is more uniform relatively adding ash.But thisly add grey device and do not have reaction time, add namely that namely to walk to cause neutralization reaction not exclusively to enter settling vessel, the particularly impact for accelerated clarifier large especially, cause easily turning at the end of settling vessel.

Shock flow type reactor and defeco-sulfitated juice enhanced reactor are all improved on several shortcomings that add grey device in front, and the reaction required time that adds behind the ash is also paid special attention to, and have especially strengthened the mixture strength of syrup and milk of lime, promote neutralization reaction.But these two kinds of reactors are deposited slag incrustation easily, and situation occurs to stop up.

Summary of the invention

The utility model is to design for the defective that overcomes present sugar refinery neutralization reaction device, add gradually lime by segmented mode, and by increasing whipping appts and reaction times, it is inhomogeneous to solve present syrup neutralization reaction, the problems such as purification effect is low, and the stifled slag of incrustation is serious.

Technical solutions of the utility model are as follows:

The neutralization reaction device of syrup is comprised of sulfitator tail pipe 4, casing 1, agitator 2, liming pipe 6, passage 3, diffuser 7.It is characterized in that: be provided with plural agitator 2 and liming pipe 6 on the reactor casing 1 of connection sulfitator tail pipe 4, casing is separated into plural reaction compartment, and is connected by passage 3.An agitator 2 and at least one liming pipe 6 are arranged in each reaction compartment in the casing 1, and the passage 3 in ligation space connects in the mode that is staggered up and down.

Each reaction compartment of reaction unit is relatively independent, can contact in many ways.Each reaction compartment such as reaction unit adopts the form of linear arrangement series winding or curved arrangement series winding to connect.

Syrup enters the reactor casing through after the stove drying through the sulfitator tail pipe, sulfurous gas is fully mixed with syrup, then segmentation little by little adds milk of lime in reaction unit, through abundant stirring reaction, makes the reaction of sulfurous gas and lime even.

The utility model has following functions:

(1) lime in the neutralization reaction device of syrup is that segmentation adds gradually and fully stirs, and has guaranteed that milk of lime reacts completely with sulfurous gas in the syrup, to improve calcium sulfite to the adsorption efficiency of impurity in the syrup, can guarantee stablizing of syrup pH control.

(2) variable valve in the reactor can be by regulating the mode adjusting reaction time of syrup liquid level.

Therefore, the utility model adds milk of lime gradually by segmentation, and strengthens the reaction efficiency of milk of lime, sulfurous gas in the syrup by high-speed stirring, stablize syrup pH value, and the raising purification effect plays an important role to raising sugar refinery quality product and sugar yield.

Description of drawings

Fig. 1 is sectional view of the present utility model.

Fig. 2 is vertical view of the present utility model.

Fig. 3 is the A-A sectional view of the utility model embodiment 2.

Fig. 4 is the vertical view of the utility model embodiment 2.

Fig. 5 is the B-B sectional view of the utility model embodiment 2.

Embodiment

The utility model specific embodiments is as follows:

Embodiment 1: the neutralization reaction device of syrup is comprised of sulfitator tail pipe 4, casing 1, agitator 2, liming pipe 6, passage 3, diffuser 7.It is characterized in that: be provided with agitator 2 and liming pipe 6 more than 2 on the reactor casing 1 of connection sulfitator tail pipe 4, casing is separated into the reaction compartment more than 2, and is connected by passage 3.An agitator 2 and at least one liming pipe 6 are arranged in each reaction compartment in the casing 1, and the passage 3 in ligation space connects in the mode that is staggered up and down.

Each reaction compartment of reaction unit adopts the form of linear arrangement series winding to connect.

Syrup enters reactor casing 1 through after the stove drying through sulfitator tail pipe 4, sulfurous gas is fully mixed with syrup, then in reaction unit, add pipe 4 segmentations by milk of lime and add milk of lime, through abundant stirring reaction, make non-sugar impurities in the syrup and sulfurous gas, lime reaction evenly complete.

Be provided with liquid level adjustable plate 5 at the rear portion of reaction unit, can control the stop reaction times of syrup in equipment by regulating liquid level.

Embodiment 2: the neutralization reaction device of syrup is comprised of sulfitator tail pipe 4, casing 1, agitator 2, liming pipe 6, passage 3, diffuser 6.It is characterized in that: be provided with agitator 2 and liming pipe 6 more than 2 on the reactor casing (1) of connection sulfitator tail pipe 4, casing is separated into the reaction compartment more than 2, and is connected by passage 3.An agitator 2 and at least one liming pipe 6 are arranged in each reaction compartment in the casing 1, and the passage 3 in ligation space connects in the mode that is staggered up and down.

Each reaction compartment of reaction unit adopts the form of curved arrangement series winding to connect.

Claims

1. the neutralization reaction device of a syrup, formed by sulfitator tail pipe (4), casing (1), agitator (2), liming pipe (6), diffuser (7), it is characterized in that: be provided with plural agitator (2) and liming pipe (6) on the reactor casing (1) of connection sulfitator tail pipe (4), casing (1) is separated into plural reaction compartment, and is connected by passage (3); Adopt the series winding form to connect between the reaction compartment.

2. syrup neutralization reaction device according to claim 1, it is characterized in that: in each reaction compartment an agitator (2) and at least one liming pipe (6) are arranged in the casing (1), the passage in ligation space (3) connects in the mode that is staggered up and down.