CN210583734U

CN210583734U - Environment-friendly energy-saving tail gas treatment device for crude fat oil refining processing

Info

Publication number: CN210583734U
Application number: CN201921105327.XU
Authority: CN
Inventors: 何松林; 晏平
Original assignee: Nanchong Jiaruite Feed Co ltd
Current assignee: Nanchong Jiaruite Feed Co ltd
Priority date: 2019-07-15
Filing date: 2019-07-15
Publication date: 2020-05-22
Anticipated expiration: 2029-07-15

Abstract

The utility model relates to the field of edible oil processing equipment, in particular to an environment-friendly and energy-saving tail gas treatment device for crude fat oil refining processing, which comprises a deacidification and deodorization tower, an odor duct led out from the deacidification and deodorization tower, an air conditioning supplier, a filter tank, a reservoir and at least one group of reaction towers, wherein the outlet end of the odor duct is communicated into the reaction towers, an air conditioning conveying pipe is communicated between the air conditioning supplier and the reaction towers, the air conditioning conveying pipe is positioned above the odor duct on the reaction towers, the outlet end of the reaction towers is communicated in the filter tank, and a filter core is arranged between the filter tank and the reservoir; the method has the advantages that the separated odorous substance water vapor mixture is subjected to subsequent treatment, the vapor mixture is converted into the liquid mixture, and then the grease and the water are separated by utilizing a physical filtration method, so that the influence on air quality caused by direct discharge of the mixture is avoided, the influence on soil quality and water source pollution caused by direct discharge of liquid waste water is also prevented, and the separated water is convenient for recycling and saves water resources.

Description

Environment-friendly energy-saving tail gas treatment device for crude fat oil refining processing

Technical Field

The utility model relates to an edible oil processing technology field, concretely relates to environmental protection and energy saving tail gas processing apparatus of fat-producing oil refining processing usefulness.

Background

The refining of the lard oil is generally divided into the following four processes:

1. the hydration degumming is a degumming method which utilizes the hydrophilicity of peptized impurities such as phospholipid, etc. and adds a certain amount of water or electrolyte dilute solution into the crude oil under the condition of stirring so as to make the peptized impurities in the crude oil absorb water and expand, coagulate and separate and remove. In the hydration degumming process, the substances which can be coagulated and precipitated mainly comprise phospholipid, and in addition, protein, mucus, trace metal ions and the like which are combined with the phospholipid.

2. The deacidification is carried out by alkali refining, various crude oils which are not refined contain free fatty acid, and the process of removing the free fatty acid in the oil is called deacidification. The deacidification method comprises various methods such as alkali refining, distillation, solvent extraction, esterification and the like. Widely used in industrial production are alkali refining and steam distillation (physical cooking).

3. The oil and fat decolorization, the adsorption decolorization of oil and fat, is to utilize some substances (such as bleaching soil, activated clay, activated carbon, etc.) with strong selective adsorption effect on pigments to adsorb the pigments and other impurities in the oil and fat under the condition, thereby achieving the purpose of decolorization. The grease treated by the adsorbent not only achieves the purposes of improving the color of the grease and removing colloid, but also can effectively remove some trace metal ions and substances which can cause the poisoning of a hydrogenation catalyst in the grease, thereby providing good conditions for further refinement (hydrogenation and deodorization) of the grease.

4. The oil deodorization is a technological process for removing odor substances by steam distillation under the conditions of high temperature and high vacuum by utilizing the volatilization difference of odor substances and triglyceride fatty acid ester in the oil. The principle of deodorization by steam distillation (also called steam stripping) is that steam passes through the grease containing odor components, the steam-liquid surface contacts, the steam is saturated by the volatilized odor components and escapes according to the ratio of partial pressure of the volatilized odor components, thereby achieving the purpose of removing the odor components.

Traditional grease deodorization equipment utilizes the cauldron to boil the crude oil, then lets in steam and takes away the foul substance in the crude oil, after the grease deodorization, contains fatty acid's that gets rid of through steam foul substance if directly discharge to the air, increases pressure again for atmospheric pollution, is not conform to the environmental protection theory. If the water is directly condensed into liquid to be discharged, the fat substances such as fatty acid and the like contained in the boiling water can cause the metabolic disturbance of aerobic microorganisms in the water, harm the water body ecosystem and seriously pollute the surrounding environment. Therefore, the steam with odor substances volatilized along with the steam needs to be recovered, and the problem how to discharge the gas is the most needed to be solved because a whole set of odor substance recovery equipment is lacked in the pork refining factory at present.

SUMMERY OF THE UTILITY MODEL

In view of the technical problem who exists among the prior art, the utility model provides an environmental protection and energy saving tail gas processing apparatus of raw fat oil refining processing usefulness, the waste gas after the deodorization of refining oil is handled the back and is being discharged to separate out the vapor in the stink material emphatically, the cyclic utilization water of being convenient for, with the water economy resource, the waste water after the processing separates out the grease, avoids contaminated air and soil property, utilizes developing of environmental protection work.

In order to realize the technical purpose, the utility model discloses a technical scheme as follows:

the utility model provides an environmental protection and energy saving tail gas processing apparatus who produces fat oil refining processing usefulness, includes deacidification deodorization tower, the foul smell pipe, air conditioning supplier, filtering ponds, the cistern of drawing forth from deacidification deodorization tower to and at least a set of reaction tower, the exit end intercommunication of foul smell pipe is advanced in the reaction tower, the air conditioning conveyer pipe is being linked together between air conditioning supplier and the reaction tower, and the air conditioning conveyer pipe is located the top position of the foul smell pipe on the reaction tower, the exit end intercommunication of reaction tower is in the filtering ponds, be equipped with the filter core between filtering ponds and the cistern.

The beneficial effect who adopts above-mentioned design is, carries out subsequent processing to the stink material steam mixture of separating, changes the liquid mixture into with vapour attitude mixture earlier, recycles the physics filtering method with grease and water separation, avoids the direct emission of steam to influence the air quality on the one hand, also prevents that liquid waste water from directly discharging to influence soil property and polluted water source, and on the other hand is the separation water, the cyclic utilization of being convenient for, water economy resource.

Further inject, the reaction tower is hollow cylindricly, and its foul smell pipe is close to the side access on the border from the reaction tower, the air conditioning conveyer pipe is inserted from the top of reaction tower, still is equipped with the air duct in the inside of reaction tower, still is equipped with the finned tube of arranging along the air duct axial direction on the outer wall of air duct, and the finned tube is the cavity form that one end was sealed, the other end and air duct intercommunication. The steam is higher than 100 ℃ and is in a steam state, when the odor substance steam mixture passes through, the cold air lower than 0 ℃ is conveyed, the cooling liquid treatment is carried out on the cold air, the buffering finned tube is designed when the cold air passes through, the cold air is gathered to be in a liquid state, the liquefaction process ensures that the cold air cannot be too low, and the grease odor substance is prevented from being directly solidified in the reaction tower.

Further defined, the finned tube is spirally wound on the outer wall of the air guide tube.

Further limited, a cold air return pipe communicated between the air guide pipe and the cold air supplier is led out from the lower bottom of the reaction tower, so that a cold air source is saved.

Further limiting, holes which are communicated with each other are arranged between the filtering tank and the reservoir, the filtering core is filled in the holes, and the outer layers at the two sides are covered with the grid fence for fixing.

Further, the filter element is divided into a platycodon root layer and an activated carbon layer, wherein the platycodon root layer is close to one side of the filter tank, liquid grease substances are filtered through a double-layer physical method, water is separated, and the separated water is repeatedly used for training so as to save water resources.

Drawings

FIG. 1 is a schematic view of an environment-friendly and energy-saving tail gas treatment device for crude fat oil refining processing;

FIG. 2 is a schematic top view of the reaction tower and the gas-guiding tube.

Detailed Description

In order to make the technical solution of the present invention more comprehensible to those skilled in the art, the present invention is further described with reference to the accompanying drawings and examples.

As shown in fig. 1 and fig. 2, the environment-friendly and energy-saving tail gas treatment device for crude fat oil refining processing comprises a deacidification and deodorization tower 1, an odor duct 2 led out from the deacidification and deodorization tower 1, a cold air supplier 3, a filter tank 4, a reservoir 5, and a reaction tower 6, wherein an outlet end of the odor duct 2 is communicated into the reaction tower 6, a cold air delivery pipe 7 is communicated between the cold air supplier 3 and the reaction tower 6, the cold air delivery pipe 7 is positioned above the odor duct 2 on the reaction tower 6, so that odor substances in a high-temperature gasification state can be rapidly liquefied when entering the reaction tower 6, the outlet end of the reaction tower 6 is communicated with the filter tank 4, and a filter core 11 is arranged between the filter tank 4 and the reservoir 5. In order to save the field, when the device is actually installed, a beam is directly built above the filter tank 4 and the reservoir 5, so that the reaction tower 6 and the cold air supplier 3 are directly installed on the filter tank 4 and the reservoir 5, the whole environment-friendly and energy-saving tail gas treatment device is located outdoors, and the odor duct 2 leads the indoor deacidification and deodorization tower 1 to the outdoor reaction tower 6.

Preferably, reaction tower 6 is hollow cylindric, its foul smell pipe 2 inserts from the side that reaction tower 6 is close to the top border, air conditioning conveyer pipe 7 inserts from the top of reaction tower 6, still is equipped with air duct 8 in reaction tower 6's inside, there is radial spacing distance air duct 8 outer wall apart from reaction tower 6 inside, air duct 8's upper and lower both ends outer wall utilizes triangle muscle 81 to fix on the inner wall at reaction tower 6, air conditioning conveyer pipe 7 directly inserts from the top of air duct 8, then still connect one in air duct 8's bottom and return the air conditioning back flow pipe 9 in cold gas supply ware 3 with its air conditioning water conservancy diversion, air conditioning passes through air duct 8 and cools down to reaction tower 6 is inside, later unnecessary cold air is led back, practices thrift cold air, or leads back the initiating terminal of cold air conveyer pipe 7, utilize again through reaction tower 6. In addition, for guaranteeing that the cold air stays more time in air duct 8, still be equipped with the finned tube 10 of arranging along 8 axial direction of air duct on the outer wall of air duct 8, vertical encircleing is on the outer wall of air duct 8, one side and the air duct 8 intercommunication of 8 contact installations with the air duct, finned tube 10 is one end closure, the cavity form of the other end and air duct intercommunication, because finned tube 10 outwards extends, it stops in finned tube 10 for a short time when difficult how cold air passes through, continuously cool down finned tube 10, avoid cold air to pass through air duct 8 fast under pressure, and finned tube 10 can increase the area of contact with grease water mist, make the quick condensation of the grease water mist of vapourization form be liquid, directly fall to the filtering ponds in.

Preferably, be equipped with the hole of intercommunication between filtering ponds 4 and the cistern 5 to filtering ponds 4 is higher than cistern 5, has the difference in height between the two, and the hole is the slope form, is convenient for grease mixture liquid water to flow towards cistern 5 fast, filter core 11 is filled in the hole, and the both sides skin is cladding the net fence, and the net fence directly fixes on the pool wall with the cement bolt, can also take off and change filter core 11. Preferably, the filter element 11 is divided into a platycodon root layer 110 and an activated carbon layer 111, wherein the platycodon root layer 110 is close to one side of the filter tank, the platycodon root layer 110 and the activated carbon layer 111 can be taken down for replacement, and the platycodon root can be directly burnt.

In the whole process of filtering and treating waste water with odorous substances such as fatty acid, the odorous substances such as fatty acid are firstly carried away from crude oil which is not refined by high-temperature steam in the deacidification and deodorization tower 1, then the odorous substances enter the reaction tower 6 along with the steam from the odor conduit 2 in a circulating manner, the oil-water mixed steam in a vaporized state is solidified into oil-water mixed liquid water at the low temperature of the air guide pipe 8, the oil-water mixed steam flows downwards along with the outer wall of the air guide pipe 8 and the inner wall of the reaction tower 6 and flows into the filter tank 4, the oil-water mixture mixed with liquefied water passes through the filter core 11 to filter oil, the rest water is stored in the reservoir, then alkali liquor is added into the water for mixing, the water can be used for other purposes, for example, the separated water can be pumped into the cold air supply device 3 to produce cold air, and water.

It is right above the utility model provides a pair of environmental protection and energy saving tail gas processing apparatus of fat refining processing usefulness has carried out detailed introduction, and the description of specific embodiment is only used for helping understanding the utility model discloses a method and core thought thereof. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.

Claims

1. The utility model provides an environmental protection and energy saving tail gas processing apparatus who produces fat oil refining processing usefulness, includes deacidification deodorization tower and the foul smell pipe that draws forth from deacidification deodorization tower, its characterized in that: still include air conditioning supplier, filtering ponds, cistern to and at least a set of reaction tower, the exit end intercommunication of foul smell pipe is advanced in the reaction tower, the air conditioning conveyer pipe is being linked together between air conditioning supplier and the reaction tower, and the air conditioning conveyer pipe is located the top position of the foul smell pipe on the reaction tower, the exit end intercommunication of reaction tower is in filtering ponds, be equipped with the filter core between filtering ponds and the cistern.

2. The environment-friendly and energy-saving tail gas treatment device for crude fat oil refining processing according to claim 1, which is characterized in that: the reaction tower is hollow cylindric, and its foul smell pipe is close to the side access on last border from the reaction tower, the air conditioning conveyer pipe is inserted from the top of reaction tower, still is equipped with the air duct in the inside of reaction tower, still is equipped with the finned tube of arranging along air duct axial direction on the outer wall of air duct, and the fin is the cavity form that one end was sealed, the other end and air duct intercommunication.

3. The environment-friendly and energy-saving tail gas treatment device for crude fat oil refining processing according to claim 2, characterized in that: the finned tube is spirally wound on the outer wall of the air guide tube.

4. The environment-friendly and energy-saving tail gas treatment device for crude fat oil refining processing according to claim 3, characterized in that: a cold air return pipe communicated between the air guide pipe and the cold air supplier is led out from the lower bottom of the reaction tower.

5. The environment-friendly and energy-saving tail gas treatment device for crude fat oil refining processing according to claim 1, which is characterized in that: holes which are communicated with each other are arranged between the filtering tank and the reservoir, the filtering core is filled in the holes, and the outer layers at the two sides are covered with the grid fence for fixation.

6. The environment-friendly and energy-saving tail gas treatment device for crude fat oil refining processing according to claim 5, wherein: the filter core divide into balloonflower layer and active carbon layer, wherein the balloonflower layer is close to filtering ponds one side.