CN114042352A - Oil and impurity removing device and method for ammonium bicarbonate solution - Google Patents

Oil and impurity removing device and method for ammonium bicarbonate solution Download PDF

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Publication number
CN114042352A
CN114042352A CN202111340758.6A CN202111340758A CN114042352A CN 114042352 A CN114042352 A CN 114042352A CN 202111340758 A CN202111340758 A CN 202111340758A CN 114042352 A CN114042352 A CN 114042352A
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CN
China
Prior art keywords
oil
tank
pipeline
filter
ammonium bicarbonate
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Pending
Application number
CN202111340758.6A
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Chinese (zh)
Inventor
许开华
杨春
张海勇
刘玉成
鲁华荣
陈华玲
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Jingmen GEM New Material Co Ltd
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Jingmen GEM New Material Co Ltd
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Priority to CN202111340758.6A priority Critical patent/CN114042352A/en
Publication of CN114042352A publication Critical patent/CN114042352A/en
Pending legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B01D36/003—Filters in combination with devices for the removal of liquids
    • B01D36/008—Means to filter or treat the separated liquid
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D17/00—Separation of liquids, not provided for elsewhere, e.g. by thermal diffusion
    • B01D17/02—Separation of non-miscible liquids
    • B01D17/0208—Separation of non-miscible liquids by sedimentation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D36/00—Filter circuits or combinations of filters with other separating devices
    • B01D36/02—Combinations of filters of different kinds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C1/00—Magnetic separation
    • B03C1/02—Magnetic separation acting directly on the substance being separated
    • B03C1/30—Combinations with other devices, not otherwise provided for

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)
  • Filtration Of Liquid (AREA)

Abstract

The invention discloses an oil and impurity removing device and method for ammonium bicarbonate solution, which comprises the following steps: a configuration tank, a filter press, an oil removal tank, a precision filter and an iron remover; the device comprises a configuration groove, a filter press, an oil removing tank, a precise filter and an iron remover, wherein a discharge hole formed in the configuration groove is connected with a feed hole formed in the filter press through a pipeline, the discharge hole formed in the filter press is connected with the feed hole formed in the oil removing tank through a pipeline, the discharge hole formed in the oil removing tank is connected with the feed hole formed in the precise filter through a pipeline, and the discharge hole formed in the precise filter is connected with the feed hole formed in the iron remover through a pipeline. The invention can be used for efficiently treating the ammonium bicarbonate solution.

Description

Oil and impurity removing device and method for ammonium bicarbonate solution
Technical Field
The invention relates to the technical field of oil removal and impurity removal, in particular to an oil removal and impurity removal device and method for an ammonium bicarbonate solution.
Background
The cobalt carbonate is used for preparing ammonium bicarbonate which is a common auxiliary material, and an automatic unpacking machine or manual unpacking is adopted in the preparation process, so that the scraps of the packaging bag are easily introduced into a preparation system, and the direct use can cause impurities to pollute the next process; and the preparation of ammonium bicarbonate usually uses coal or natural gas as raw materials for production, so that the oil content after preparation is higher and can reach 60mg/L, and in the reaction process of the ammonium bicarbonate and cobalt chloride, floating oil exists on the surface, so that a large amount of carbon dioxide generated by the reaction is prevented from being discharged, and the reactor is easy to cause reactor production accidents.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an oil and impurity removing device and method for an ammonium bicarbonate solution.
The invention is realized by the following technical scheme.
The utility model provides an ammonium bicarbonate solution deoiling edulcoration device which characterized in that, the device includes: a configuration groove (1), a filter press (2), an oil removing tank (3), a precision filter (4) and an iron remover (5); the device is characterized in that a discharge port arranged in the configuration groove (1) is connected with a feed port arranged in the filter press (2) through a pipeline, a discharge port arranged in the filter press (2) is connected with a feed port arranged in the oil removal tank (3) through a pipeline, a discharge port arranged in the oil removal tank (3) is connected with a feed port arranged in the precision filter (4) through a pipeline, and a discharge port arranged in the precision filter (4) is connected with a feed port arranged in the iron remover (5) through a pipeline.
Further, configuration groove (1) includes cell body (6), agitator (7), cell body (6) inner wall is equipped with steam coil, agitator (7) include agitator motor (8), (mixing) shaft (9), stirring vane (10), agitator motor (8) set up on cell body (6), it is internal that (mixing) shaft (9) stretch into the cell body from the higher authority of cell body (6), the upper end and the agitator motor (8) of (mixing) shaft (9) are connected, stirring vane (10) suit is at the lower extreme of (mixing) shaft (9).
Further, the precision filter (4) adopts a precision filter with the filtering precision of 0.2 mu m.
Furthermore, the oil removal tank (3) adopts a resin oil removal tank.
Further, the magnetic rod magnetic force adopted by the iron remover (5) is higher than 8000 GS.
Furthermore, a pipeline for connecting the configuration tank (1) with the filter press (2), a pipeline for connecting the filter press (2) with the oil removal tank (3), a pipeline for connecting the oil removal tank (3) with the precision filter (4), and a pipeline for connecting the precision filter (4) with the iron remover (5) are all provided with a delivery pump.
Furthermore, flow meters are arranged on a pipeline connecting the filter press (2) and the oil removal tank (3) and a pipeline connecting the oil removal tank (3) and the precision filter (4).
An oil and impurity removing method adopting the device is characterized by comprising the following steps: and conveying the ammonium bicarbonate solution in the preparation tank to a filter press through a pipeline, after solid-liquid separation is realized, conveying the filtrate to an oil removal tank through a pipeline to realize oil-water separation, conveying the water phase to a precision filter through a pipeline to separate suspended matters, and then conveying the water phase to an iron remover.
Further, the pressure of the filter press is 350-500Kpa, and the flow rate of the filtrate introduced into the oil removal tank reaches 10-20m3The flow rate of the water phase introduced into the precision filter reaches 8-18m3/h。
Furthermore, after the oil removal treatment of the oil removal tank, pure water needs to be introduced for backwashing.
The invention has the beneficial technical effects that the multi-stage filtering equipment is adopted to carry out oil removal and impurity removal treatment on the ammonium bicarbonate solution, and the method has the advantages that:
(1) the filter press can effectively remove large impurities in the ammonium bicarbonate solution, and prevent the impurities from entering the next procedure to pollute finished products;
(2) the oil removal tank can effectively remove the floating oil on the surface of the ammonium bicarbonate solution, and reduce the oil content in the solution from 60mg/L to below 10mg/L, thereby effectively avoiding the phenomenon that the floating oil obstructs the discharge of a large amount of carbon dioxide produced by the reaction, which causes the production accident of overflowing from the reactor;
(3) the fine filter can effectively remove the residual trace suspended matters in the ammonium bicarbonate solution, reduce the suspended matters in the solution from 30mg/L to below 5mg/L, and effectively avoid the trace impurity elements and the content of insoluble substances in the finished product from exceeding the standard;
(4) the iron remover can effectively remove the magnetic foreign matters in the ammonium bicarbonate solution, reduce the magnetic foreign matters in the solution from 40ppb to below 5ppb, and avoid the content of the magnetic foreign matters of finished products from exceeding the standard due to ammonium bicarbonate.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, an apparatus for removing oil and impurities from ammonium bicarbonate solution comprises: the device comprises a configuration tank 1, a filter press 2, an oil removing tank 3, a precision filter 4 and an iron remover 5;
the discharge port that the configuration groove 1 was equipped with passes through the pipe connection with the feed inlet that pressure filter 2 was equipped with, the discharge port that pressure filter 2 was equipped with passes through the pipe connection with the feed inlet that deoiling jar 3 was equipped with, the discharge port that deoiling jar 3 was equipped with passes through the pipe connection with the feed inlet that precision filter 4 was equipped with, the discharge port that precision filter 4 was equipped with passes through the pipe connection with the feed inlet that deironing ware 5 was equipped with.
Specifically, the configuration tank 1 comprises a tank body 6 and a stirrer 7 which are vertically arranged, a steam coil is arranged on the inner wall of the tank body 6, and a discharge hole is formed in the lower part of the side wall of one side of the tank body 6; the stirrer 7 comprises a stirring motor 8, a stirring shaft 9 and stirring blades 10, wherein the stirring motor 8 is arranged on the upper surface of the tank body 6, the stirring shaft 9 extends into the tank body from the upper surface of the tank body 6, the upper end of the stirring shaft 9 is connected with the stirring motor 8, and the stirring blades 10 are sleeved at the lower end of the stirring shaft 9; the discharge gate that the configuration groove 1 was equipped with and the feed inlet that pressure filter 2 one side was equipped with pass through the pipe connection, the discharge gate that pressure filter 2 opposite side was equipped with passes through the pipe connection with the feed inlet that oil removal jar 3 one side bottom was equipped with, oil removal jar 3 adopts the resin deoiling jar, the discharge gate that oil removal jar 3 opposite side upper portion was equipped with passes through the pipe connection with the feed inlet that precision filter 4 one side lateral wall lower part was equipped with, precision filter 4 adopts the precision filter of filter fineness 0.2 mu m, the discharge gate that precision filter 4 bottom was equipped with passes through the pipe connection with the feed inlet that deironing ware 5 one side was equipped with. A pipeline for connecting the configuration tank 1 with the filter press 2, a pipeline for connecting the filter press 2 with the oil removal tank 3, a pipeline for connecting the oil removal tank 3 with the precision filter 4, and a pipeline for connecting the precision filter 4 with the iron remover 5 are all provided with a delivery pump; the pipeline of the filter press 2 connected with the oil removing tank 3 and the pipeline of the oil removing tank 3 connected with the precision filter 4 are both provided with flow meters.
The magnetic rod magnetic force adopted by the iron remover 5 is higher than 8000 GS.
An oil and impurity removing method adopting the device comprises the following steps: adding ammonium bicarbonate solid and water into the configuration tank 1, introducing steam into a steam coil pipe, heating to 40-60 ℃, stirring until the ammonium bicarbonate solid is completely dissolved, conveying the ammonium bicarbonate solution to a filter press 2 through a pipeline, wherein the pressure of the filter press is 350-500Kpa, after solid-liquid separation is realized, conveying the filtrate to an oil removal tank 3 through a pipeline to realize oil-water separation, conveying the water phase obtained by oil-water separation to a precision filter 4 through a pipeline to separate suspended matters, and then conveying to an iron remover 5 to remove magnetic foreign matters; wherein the flow rate of the filtrate introduced into the oil removal tank reaches 10-20m3H, the flow rate of the water phase introduced into the precision filter reaches 8-18m3H is used as the reference value. After the oil removal tank is subjected to oil removal treatment, pure water needs to be introduced for backwashing, and resin needs to be supplemented regularly after long-time use.
The filter press can extract solids in the ammonium bicarbonate solution to realize the effect of solid-liquid separation, after the ammonium bicarbonate solution enters each filter chamber from the material holes, large impurities or other solid particles can be retained in the filter chambers by the filter cloth due to overlarge volume or particle size, and filtrate flows out from the liquid outlet holes below the filter plates, so that the effect of removing the large impurities in the ammonium bicarbonate solution is realized; the filter cloth of the filter press needs to be replaced periodically.
The deoiling resin is added into the deoiling tank to serve as a filtering medium, when filtrate passes through a resin area, emulsified oil and oil droplets in solution are collected and adsorbed by utilizing lipophilic groups in the resin, so that an oil removing effect is achieved, when a resin surface oil layer reaches a certain thickness, pure water is adopted for backflushing, under the repulsion effect of hydrophilic groups in water flow power and the resin, the oil droplets are separated from the resin and float to the water surface, and oil-water separation is achieved.
The precision filter is mainly used for solid-liquid separation of suspension in a water phase obtained by oil-water separation, mechanical filtration is carried out by utilizing pores with the filtering precision of 0.2 mu m of a PP filter element, and trace suspended particles, colloids, microorganisms and the like remaining in the water phase are intercepted or adsorbed on the surface and in the pores of the filter element, so that the effect of reducing suspended matters in an ammonium bicarbonate solution is achieved; along with the prolonging of the service time of the precision filter, the running resistance of the filter element can gradually rise due to the pollution of trapped matters, and the precision filter needs to be cleaned regularly.
The iron remover can be a fluid iron remover, and the solution can effectively filter fine magnetic impurities in the solution by passing through a strong magnetic field (the magnetic strength is more than 8000GS) of a magnetic bar inside the fluid iron remover, so that the effects of reducing the magnetic foreign matters in the ammonium bicarbonate solution and improving the solution quality are achieved; after the iron remover is filled with solution to remove magnetism, adsorbed substances on the magnetic rod need to be removed regularly, otherwise, the effect of adsorbing and filtering magnetic impurities by the magnetic rod can be reduced.
Example 1
A method for removing oil and impurities from ammonium bicarbonate solution comprises introducing the ammonium bicarbonate solution in a configuration tank 1 into a filter press 2 for solid-liquid separation, wherein the pressure of the filter press is 450Kpa, introducing filtrate into a degreasing tank 3 for oil removal, and introducing the filtrate into the degreasing tank at a flow rate of 15m3The oil removing tank 3 can effectively remove the floating oil on the surface of the ammonium bicarbonate solution, the oil content in the solution is reduced to 9mg/L from 60mg/L, the water phase is introduced into the precision filter 4 for filtering, and the flow rate reaches 13m3And h, effectively removing the residual trace suspended matters in the ammonium bicarbonate solution, reducing the suspended matters in the solution from 30mg/L to 4.8mg/L, finally introducing an iron remover 5 to remove the magnetic foreign matters, reducing the magnetic foreign matters in the solution from 40ppb to below 4.9ppb, and feeding the obtained pure ammonium bicarbonate solution into the next working procedure for use. The oil removing tank 3 is backwashed at least once by introducing pure water after being used every day.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention. It should be noted that other equivalent modifications can be made by those skilled in the art in light of the teachings of the present invention, and all such modifications can be made as are within the scope of the present invention.

Claims (10)

1. The utility model provides an ammonium bicarbonate solution deoiling edulcoration device which characterized in that, the device includes: a configuration groove (1), a filter press (2), an oil removing tank (3), a precision filter (4) and an iron remover (5); the device is characterized in that a discharge port arranged in the configuration groove (1) is connected with a feed port arranged in the filter press (2) through a pipeline, a discharge port arranged in the filter press (2) is connected with a feed port arranged in the oil removal tank (3) through a pipeline, a discharge port arranged in the oil removal tank (3) is connected with a feed port arranged in the precision filter (4) through a pipeline, and a discharge port arranged in the precision filter (4) is connected with a feed port arranged in the iron remover (5) through a pipeline.
2. The ammonium bicarbonate solution oil and impurity removal device according to claim 1, wherein the configuration tank (1) comprises a tank body (6) and a stirrer (7), a steam coil is arranged on the inner wall of the tank body (6), the stirrer (7) comprises a stirring motor (8), a stirring shaft (9) and stirring blades (10), the stirring motor (8) is arranged on the tank body (6), the stirring shaft (9) extends into the tank body from the upper surface of the tank body (6), the upper end of the stirring shaft (9) is connected with the stirring motor (8), and the stirring blades (10) are sleeved at the lower end of the stirring shaft (9).
3. The apparatus for removing oil and impurities from ammonium bicarbonate solution according to claim 1, wherein the precision filter (4) is a precision filter with a filtering precision of 0.2 μm.
4. The oil and impurity removing device of the ammonium bicarbonate solution according to claim 1, characterized in that the oil removing tank (3) adopts a resin oil removing tank.
5. The ammonium bicarbonate solution oil and impurity removal device according to claim 1, wherein the magnetic rod magnetic force adopted by the iron remover (5) is higher than 8000 GS.
6. The device for removing oil and impurities in ammonium bicarbonate solution according to claim 1, wherein the pipeline connecting the configuration tank (1) and the filter press (2), the pipeline connecting the filter press (2) and the oil removing tank (3), the pipeline connecting the oil removing tank (3) and the precision filter (4), and the pipeline connecting the precision filter (4) and the iron remover (5) are all provided with a delivery pump.
7. The device for removing oil and impurities in ammonium bicarbonate solution according to claim 1, wherein the pipeline connecting the filter press (2) and the oil removing tank (3) and the pipeline connecting the oil removing tank (3) and the precision filter (4) are provided with flow meters.
8. An oil and impurity removing method using the apparatus according to any one of claims 1 to 7, wherein the method comprises: and conveying the ammonium bicarbonate solution in the preparation tank to a filter press through a pipeline, after solid-liquid separation is realized, conveying the filtrate to an oil removal tank through a pipeline to realize oil-water separation, conveying the water phase to a precision filter through a pipeline to separate suspended matters, and then conveying the water phase to an iron remover.
9. The method as claimed in claim 8, wherein the pressure of the filter press is 350-500Kpa, and the flow rate of the filtrate into the oil removal tank is 10-20m3The flow rate of the water phase introduced into the precision filter reaches 8-18m3/h。
10. The method as claimed in claim 8, wherein after the degreasing treatment of the degreasing tank, pure water is introduced for backwashing.
CN202111340758.6A 2021-11-12 2021-11-12 Oil and impurity removing device and method for ammonium bicarbonate solution Pending CN114042352A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202111340758.6A CN114042352A (en) 2021-11-12 2021-11-12 Oil and impurity removing device and method for ammonium bicarbonate solution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202111340758.6A CN114042352A (en) 2021-11-12 2021-11-12 Oil and impurity removing device and method for ammonium bicarbonate solution

Publications (1)

Publication Number Publication Date
CN114042352A true CN114042352A (en) 2022-02-15

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ID=80208830

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202111340758.6A Pending CN114042352A (en) 2021-11-12 2021-11-12 Oil and impurity removing device and method for ammonium bicarbonate solution

Country Status (1)

Country Link
CN (1) CN114042352A (en)

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