CN104692578B

CN104692578B - Produce palmitic discarded liquor treating process

Info

Publication number: CN104692578B
Application number: CN201510077275.XA
Authority: CN
Inventors: 何文元
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-02-13
Filing date: 2015-02-13
Publication date: 2016-09-07
Anticipated expiration: 2035-02-13
Also published as: CN104692578A

Abstract

The palmitic discarded liquor treating process of a kind of production, oily waste water is first separated into concentrate heavy oil, filtered fluid water and slag through ceramic inorganic membrane tube combined pipe fitting, again the predominantly waste water of waste liquid in last process is accounted for 98%, deliver to multiple-effect falling film evaporating separation device processes, the high-temperature condensation water recovery generated is delivered to distilling kettle and is used as boiling hot water, at this moment condensed water has approximated distilled water, and remaining slag rotating scraper evaporator pumped is dried is used as fertilizer, feed.Whole evaporation, separation, condensation process technique, make oil-containing waste liquid be fully used recycling；Replace that original to take the useful space the biggest, make aging precipitation with large-area more than 10 dell ponds to process, also produce the sewage that can not discharge the most up to standard and smell, this technique can reach environmental protection zero-emission purpose, it is greatly shortened the production cycle, saves again substantial amounts of industrial land and design library part editor and reuse, improve working environment, labour intensity, obtaining the biggest economical, societal benefits, practical value is high.

Description

Produce palmitic discarded liquor treating process

Technical field

The present invention relates to a kind of technique that processes, particularly to the waste liquid produced after extracting oil with fresh palm fruit, carry out the palmitic discarded liquor treating process of production of environmental protection treatment.

Background technology

Existing palm oil produces: squeeze after first fresh palm oil fruit being boiled in distilling kettle, the crude oil being layered above after squeezing collects to be delivered to refined oil factory and makes palm oil, remaining oily waste machine by centrifugation is separated into again oil, oily waste water, slag, oil is recovered, remaining oily waste water, slag are made aging precipitation through large area dell and are processed, the raw material of general industry oil and fat product made by the oil being again separate out, and slag is used as fertilizer.But can discharge substantial amounts of hydrogen sulfide gas during processing at this in dell, destroy and pollute air around and environment, the water concurrently separated out is the most up to standard, can't at will discharge, and there is the most insurmountable the most thorny difficult problem.

Number of patent application 200610018746.0 " produces palmitic method and complete set of equipments " from fresh palm fibre fruit, provide only a kind of fruit to fresh palm fibre fruit, method and apparatus that benevolence, core are effectively separated and make full use of.

The patent No. 201320785742.0 " palm oil waste water pretreatment unit ", it is provided that the bulky device being only made up of pipe, screen pack, precipitation plate, separate tank, sedimentation basin, flotation tank etc. oily waste water is effectively separated process.

Summary of the invention

The technical problem to be solved is: produce palmitic discarded liquor treating process, the oil-containing waste liquid produced after not only making oil expression is fully used and is also recycled, both discarded object had been avoided to empty gas and water, the pollution of environment, destruction, reach the target of energy-conserving and environment-protective, there is again the biggest economic benefit, social benefit.

nullThe present invention solves the technical scheme that the problems referred to above are used: produce palmitic discarded liquor treating process，Including 1、Boiled in distilling kettle by fresh palm fruit and squeeze in squeezer，Through oil in squeezer、Water、After slag separates，Crude oil in upper strata is remaining a small amount of oil after taking away、Oily waste water、The waste liquid of slag，Respectively under horizontal three-phase screw rod centrifuge and butterfly centrifugal machine High Rotation Speed，Allow oil、Oily waste water、Slag separates，And the outlet outflow from centrifuge diverse location，Isolated heavy oil liquid is recovered in squeezer，Slag makees fertilizer，Also include 2、The waste liquid stayed by last process mainly oily waste water is delivered in more than one ceramic inorganic membrane tube combined pipe fitting，Each arm in ceramic inorganic membrane tube combined pipe fitting separates，The penetrating fluid i.e. filtered fluid first leaked out from fenestra is water，Remaining oil becomes concentrate passage in the middle of arm to flow out recovery，On center-aisle inwall, precipitation is slagged tap，Washed out by buck again and outside arm, make feed、Fertilizer，3、By the waste liquid in last process，Predominantly organic wastewater accounts for more than 97%，Deliver to multiple-effect falling film evaporating separation device evaporates、Separate、The high-temperature condensation water recovery that condensation cycle generates after processing is delivered to distilling kettle and is used as the high-temperature water needed for boiling palm oil fruit，Slag makees feed、Fertilizer，Whole closed circulation processing procedure is zero-emission.

Compared with prior art, it is an advantage of the current invention that: present treatment technique uses ceramic inorganic membrane tube and multiple-effect falling film evaporation separating technology, replace that original to take the useful space very big, make aging precipitation with more than 10 dell pond of large area and process, pond, hole inwall also needs painted plastic, the technique that cost of manufacture is high.And evaporate isolating waste water the most up to standard through evaporation equipment, it is cooled to condensed water again and makes its one-tenth approximation distilled water up to standard, at this moment the temperature of condensed water is up to 69 DEG C very much, directly it is recovered in the distilling kettle initiateed, raw water and the heat energy use of palm fruit is boiled as supply heating, condensed water is made to be recycled, the intermediate product produced in whole production process is all fully used, recycle and for zero-emission, isolated waste particle contain abundant carrotene, except making feed, outside fertilizer, also can be used as to treat medicine or the raw material of health products of angiocardiopathy.

Peel the fruit stone that abandons before the most also being extracted oil by palm fruit, shell, shell string, all centralized collection such as branch get up to make the fuel needed for evaporation process, are also needed to spend substantial amounts of human and material resources, financial resources, time and the quantity that processes is many, volume big, take and pollute again the discarded object of environment more than ground and all fully utilize by former when garbage disposal.

Whole production technology is all carried out in the pipeline closed, all raw material and intermediate product are all fully used, are recycled, the most do not exist air and water, the pollution of environment, destruction problem, it is truly realized the target of energy-saving environment-friendly zero-emission, both palmitic yield had been added, save again and eliminate substantial amounts of industrial land and design library part editor and reuse, improve working environment, labour intensity.This technique simple process speed is fast, makes the production cycle be greatly shortened, substantially increases production efficiency, achieves good economic benefit and social benefit.

Accompanying drawing explanation

Fig. 1, waste liquid process artwork.

Detailed description of the invention

Below in conjunction with the accompanying drawings embodiments of the invention are described in further detail.

Palm oil milling process has been that prior art is summarized as follows:

1, use fresh palm fruit to make raw material, abandon the shell of palm oil fruit, fruit stone, shell string branch etc., put into the distilling kettle with water heats and fruit is boiled；

2, the fruit boiled in distilling kettle is put in squeezer, squeeze into oil, water, the mixture of slag layering；

3, last process squeezes machine oil, water, slag layering, and the crude oil in upper strata is extracted out, is delivered to refined oil factory and prepare palm oil；

4, remaining discarded feed liquid after last process crude oil being extracted out, respectively under horizontal three-phase screw rod centrifuge and butterfly centrifugal machine High Rotation Speed, oil, water, slag is allowed to separate, and the outlet outflow from centrifuge diverse location, isolated heavy oil liquid is recovered and sends back in squeezer, and slag is used as feed, fertilizer；

5, waste liquid remaining in last process is delivered to more than 10 dell pond of large area and makees aging precipitation process, again oil, oily waste water, slag are separated, the raw material of general industry oil and fat product made by isolated oil, slag is used as fertilizer, because the water separated is the most up to standard, could discharge after need to administering, simultaneously during Ageing Treatment, can discharge the most smelly hydrogen sulfide gas in dell, pollute environment and damage the ozone layer, this is that environmental protection is unallowed.

Now use ceramic inorganic membrane tube combination body to carry out water-oil separating, and multiple-effect falling film evaporation separating technology replaces that original floor space is big, destroy, the dell pond depositing technology of contaminated air environment.

Can commercially select the ceramic inorganic membrane tube of different size, size, varying number passage as required.

Embodiment, selection diameter 30 millimeters, grow 1.2 meters, have the ceramic inorganic membrane tube of 19 passages as 1 arm, and its passage is the membrane aperture of 50 nanometers.

By 61 above-mentioned arms, concentrating and be placed in the same pipe fitting made with stainless steel tube, as 1 combined pipe fitting, 6 combined pipe fittings can be treated to be flow 12～13 meters³/ hour the waste water of oil-containing.

The more than one piece combined pipe fitting of more than one can be designed with according to actual needs, arrangement is concentrated to be placed in together, the water of oil-containing, slag are carried out the separating treatment of big flow, also can be selected for the ceramic inorganic membrane tube of the varying number passages such as 37,61 to make combined pipe fitting and use, or 91 arms form ceramic inorganic membrane tube combined pipe fitting equipment and use.

The waste liquid will separated from butterfly centrifugal machine, main still containing oil, the water of slag, account for more than 95%, separation by arm each in more than one piece combined pipe fitting, at this moment the moisture content in waste liquid first leaks out as filtered fluid i.e. penetrating fluid from fenestra, remaining oil becomes concentrate to flow out from arm center-aisle, send back to squeezer reclaims, slag is that sol particle is deposited on the inwall of center-aisle, wash out outside arm by buck again, have passed through the most again once oil, water, the separation of slag, its technique is simple, processing speed is fast, instead of large area dell pond depositing technology, be not required to dig pit the plant engineering in pond, and floor space is little, pollution-free, odorlessness, production cost is low.

Multiple-effect falling film evaporation separating technology, i.e. uses multiple evaporation separation equipment to be connected in turn, continuous closed self-circulation or force closed circulation to evaporate, separate, complete after condensation process.At this moment mainly moisture content account for 98% in waste liquid, evaporates through continuous closed circulation repeatedly, separates, and ultimately produces the steam focusing in steam pipe and to the condensed water in condenser, for making palm oil.

Producing palmitic raw material, shell is had on fresh palm fruit, fruit stone and fruit string, branch etc., former is all that obsolete disposed waste now reclaims burning, make the required fuel making raw steam of evaporation separating technology to use, whole palmitic making is just carried out in a systemic circulation, discarded shell rubbish makes full use of as fuel and reduces cost, therefore this technique does not produce any discarded object, pollutant is zero-emission, the middle indirect steam produced, condensed water has all been recycled, the slag rotating scraper evaporator pumped of remaining graininess is dried makees fertilizer, feed is used, eliminate again spray art and spraying apparatus, reduce production cost, environment protecting is good, additionally produce processing speed fast, it is greatly shortened the production cycle, improve production efficiency, the palmitic production needs of high-volume can be met, practical value is high.

Claims

null1. one kind produces palmitic discarded liquor treating process，Including 1、Boiled in distilling kettle by fresh palm fruit and squeeze in squeezer，Through oil in squeezer、Water、After slag separates，Crude oil in upper strata is remaining a small amount of oil after taking away、Oily waste water、The waste liquid of slag，Respectively under horizontal three-phase screw rod centrifuge and disk centrifugal separator High Rotation Speed，Allow oil、Oily waste water、Slag separates，And the outlet outflow from centrifuge diverse location，Isolated heavy oil liquid is recovered in squeezer，Slag makees fertilizer，Characterized by further comprising 2、The waste liquid stayed by last process mainly oily waste water is delivered in more than one ceramic inorganic membrane tube combined pipe fitting，Each arm in ceramic inorganic membrane tube combined pipe fitting separates，The penetrating fluid i.e. filtered fluid first leaked out from fenestra is water，Remaining oil becomes concentrate passage in the middle of arm to flow out recovery，On center-aisle inwall, precipitation is slagged tap，Washed out by buck again and outside arm, make feed、Fertilizer，3、Waste liquid in last process is mainly penetrating fluid、Filtered fluid water is that organic wastewater accounts for more than 97%，Deliver to multiple-effect falling film evaporating separation device evaporates、Separate、After condensation cycle processes，The high-temperature condensation water recovery generated is delivered to distilling kettle and is used as the boiling hot water needed for boiling palm fruit，Slag makees feed、Fertilizer，Whole closed circulation processing procedure is zero-emission.
The palmitic discarded liquor treating process of production the most according to claim 1, it is characterised in that account for more than 95% containing oil, the water of slag in isolated waste liquid in described centrifuge from High Rotation Speed.
The palmitic discarded liquor treating process of production the most according to claim 1, it is characterised in that described in deliver to the predominantly waste water of the waste liquid in multiple-effect falling film evaporating separation device and account for more than 98%.
The palmitic discarded liquor treating process of production the most according to claim 1, it is characterised in that described make fertilizer, the slag of feed is sol particle.
The palmitic discarded liquor treating process of production the most according to claim 1, it is characterised in that the shell abandoned of described fresh palm fruit, fruit stone, fruit string disposed waste reclaim fuel needed for evaporation separating technology is made in burning and make raw steam use.
The palmitic discarded liquor treating process of production the most according to claim 1, it is characterized in that described multiple-effect falling film evaporates separating technology: i.e. use multiple evaporation, separation equipment to be connected in turn, continuous closed self-circulation or force closed circulation to evaporate, separate, complete after condensation process.