CN201883085U

CN201883085U - Oil deodorizing tower with controllable temperature

Info

Publication number: CN201883085U
Application number: CN2010205921772U
Authority: CN
Inventors: 白新鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-11-04
Filing date: 2010-11-04
Publication date: 2011-06-29
Anticipated expiration: 2020-11-04

Abstract

The utility model relates to the field of oil refining, in particular to an oil deodorizing tower with controllable temperature, which comprises a tower body; and a segmental heater is arranged on the tower body to effectively control the temperature of oil in the tower body during deodorization. The oil deodorizing tower can effectively solve the problem of generation of trans fatty acid in actual production, and meet the requirement of deodorizing process for the oil refining. The device is especially suitable for producing oil with low trans fatty acid, can better keep the deodorizing effect, and also can reduce the influence on oil quality due to high temperature.

Description

A kind of grease deodorization tower of temperature controllable

Technical field

The present invention relates to grease refinement field, relate in particular to a kind of deodorization tower that is suitable for producing the greasy temperature controllable of low trans fatty acid.

Background technology

Reducing meals trans fats and American National force to indicate governmental measures such as trans fats on nutritional labeling appearance along with international organization's proposal, trans fatty acid there has been a conclusion, be that trans fats are harmful to health, therefore in meals, should avoid the trans fatty acid of Excessive Intake as far as possible.Traditional grease processing technology lacks otherwise effective technique equipment means to the control content of trans fatty acids, can not satisfy the food safety demand of people's growing interest.

The refining course of processing is exposed under the conditions such as light, heat, catalyzer grease, generate trans fatty acid, in this operation, for removing smell substances such as degrease propionic aldehyde, ketone, come unstuck, decarboxylation, decoloration process process often add chemical such as acid, alkali, carclazyte, if itself and the peculiar smell introduced are removed with to the greatest extent, needs long time treatment more than 250 ℃ usually when deodorization, this process also produces trans fatty acid, and the trans fatty acid amount of the high more generation of temperature is high more.

Deodorization is important link in oil and fat refining, and the deodorization tower is a key equipment in the deodorizing technology, and at present, the domestic deodorization tower primary structure that is used for deodorization commonly used has two kinds of tower disc type and material filling types.

Because the engage position of tower disc type deodorization tower is bigger, handle defectives such as comparatively complicated, that efficient is low, be subjected to certain restriction so use.In recent years, packing tower is simple in structure with it, the steam utilization height, and the low advantage of refining consumption obtains rapidly promoting.Compare with traditional tower disc type deodorization tower, the loss of packing tower vacuum overdraft is minimum, thereby can be under lower temperature (250 ℃) use less steam (original amount 1/3rd), the short time (being reduced to less than 1h) from original 2.5 ~ 3h, impurity such as free fatty acids are removed effectively, but the inventor uses the situation of existing filler deodorization tower from many families, existing filler deodorization tower mostly owing to will reach physical deacidification simultaneously, the deodorising effect purpose, must be heated to grease very and just can enter filler deodorization tower more than the high-temperature (250 ℃), and the entire treatment process temperature all at high temperature carries out, the trans fatty acid rising is more like this, increased the deodorization cost accordingly, and the treatment time is long, the quality of oil is wayward relatively, and is not obvious to reducing the trans fatty acid advantage.

Summary of the invention

At above-mentioned situation, in order to overcome the defective of prior art, the utility model relates to a kind of grease deodorization tower of temperature controllable, can effectively reduce in the actual production content of trans fatty acid in the processed oil, enhance productivity, and the quality of oil product, to satisfy the needs in market.The scheme of its solution is, on described tower body, be provided with packing section, be provided with vacuum at the top of described packing section and extract pipe out, below described vacuum extraction pipe, be provided with oil inlet pipe, design has the branch food tray below described oil inlet pipe, be provided with filler and bracing frame in the lower end of described minute food tray, be provided with the open steam nozzle in the lower end of described packing section, described open steam nozzle is communicated with direct superheated vapour inlet pipe, bottom in described packing section is provided with drain line, described packing section is minimum to be three sections compositions, filler in each packing section has the filler bracing frame, described bracing frame has outside the filler effect of support, also have the effect of the food tray of branch, be respectively equipped with the interlayer that can feed heat-conducting oil heating, can control the process of oil plant from the cat head import to the tower bottom outlet and progressively heat up in described each packing section, the temperature lower that guarantees oil plant is issued to deodorising effect preferably, has avoided because the influence of the too high quality to product of oil temperature.

The structural representation of the grease deodorization tower of a kind of temperature controllable that description of drawings, Fig. 1 provide for the embodiment of the invention.

Embodiment, describe the present invention in detail below in conjunction with accompanying drawing and specific embodiment, referring to shown in Figure 1, tower body l01 main body is a packing section, be provided with vacuum at the top of packing section and extract pipe l02 out, below vacuum extraction pipe 102, be provided with traverse baffle 103, oil inlet pipe 104, design has branch food tray 105 below oil inlet pipe 104, be provided with the double food tray 113 that divides of filler 106 and bracing frame in the lower end of minute food tray 105, also be provided with the interlayer 111 and the heat conductive oil inlet 109 that can feed heat-conducting oil heating in packing section, thermal oil outlet 110, be provided with open steam nozzle 108 in the lower end of packing section, the open steam nozzle is communicated with open steam inlet pipe l07, is provided with processed oil drain line 112 in the bottom of packing section.

Principle of work is, extract pipe 102 out in the vacuum at the top of tower body 101 and extract vacuum out, grease enters from deodorization cat head 104 oil-ins, and distribute uniformly by a minute food tray l05, make grease on filler l06, form oil film, flow from top to bottom, with the open steam nozzle in the lower end upwards stripping superheated vapour vapour-liquid anti-phase on filler 106 of the adverse current of ejection contact, thereby distill out lipid acid and malodor components in packing section, take away by vacuum, because grease enters after the packing section of deodorization tower, stink substance and steam are by flash evaporation, can produce a large amount of gases, make air pressure increase rapidly, in order to prevent that producing liquid flooding establishes a traverse baffle 103 at the head of tower, owing to be respectively equipped with the zone of heating 111 that can feed heat-conducting oil heating in each packing section, can make progressively heat up the process of oil plant from the cat head import to the tower bottom outlet (from 180 ℃ ~ 250 ℃), what guarantee oil plant reaches deodorising effect preferably in the process of alternating temperature, avoided because the influence of the too high quality to product of long-time oil temperature, can effectively reduce the generation of trans fatty acid, simultaneously, this novel deodorization tower has also been created condition for the natural VE that appropriateness keeps in the grease.

To sum up, the deodorization tower of present embodiment is a kind of novel deodorization equipment, has trans fatty acid remaining quantity low (remaining quantity 0.6% ~ 1%) in the processed oil, and of light color, acid value is low, and the refining consumption is few, economizes the advantage of steam, and cost of use and production adult are lower.

Claims

1. the grease deodorization tower of a temperature controllable, it is characterized in that, comprise tower body, on described tower body, be provided with packing section, be provided with vacuum at the top of described packing section and extract pipe out, below described vacuum extraction pipe, be provided with oil inlet pipe, design has the branch food tray below described oil inlet pipe, be provided with stainless steel structure filler and filler bracing frame in the lower end of described minute food tray, be provided with the heat-conducting oil heating interlayer in described packing section, be provided with the open steam nozzle in the lower end of described packing section, described open steam nozzle is communicated with direct superheated vapour inlet pipe, is provided with drain line in the bottom of described tower body.

2. according to the grease deodorization tower of the described temperature controllable of claim 1, it is characterized in that described packing section is minimum to be three sections compositions, each packing section is respectively equipped with the interlayer that can feed heat-conducting oil heating.