CN109967136A - A kind of fixed-bed resin washing and detoxifying integral method - Google Patents
A kind of fixed-bed resin washing and detoxifying integral method Download PDFInfo
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- CN109967136A CN109967136A CN201910174172.3A CN201910174172A CN109967136A CN 109967136 A CN109967136 A CN 109967136A CN 201910174172 A CN201910174172 A CN 201910174172A CN 109967136 A CN109967136 A CN 109967136A
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- washing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
- B01J49/05—Regeneration or reactivation of ion-exchangers; Apparatus therefor of fixed beds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
- B01J49/50—Regeneration or reactivation of ion-exchangers; Apparatus therefor characterised by the regeneration reagents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
- B01J49/60—Cleaning or rinsing ion-exchange beds
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- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Water Treatment By Sorption (AREA)
Abstract
The present invention relates to In Pregnant Solution From In-situ Leaching processing technology fields, specifically disclose a kind of fixed-bed resin washing and detoxifying integral method, comprising the following steps: (1) resin bed in high pressure washing adsorption tower；(2) washing and detoxifying reagent A is prepared；(3) hybrid resin and washing and detoxifying reagent A；(4) washing and detoxifying reagent B is prepared；(5) hybrid resin and washing and detoxifying reagent B；(6) efflux is discharged.The method of the present invention cleans fixed-bed resin, removing toxic substances process is combined into one, and realizes the integration of fixed-bed resin washing and detoxifying, improves the utilization rate of equipment and the working efficiency of personnel.
Description
Technical field
The invention belongs to In Pregnant Solution From In-situ Leaching processing technology fields, and in particular to a kind of fixed-bed resin washing and detoxifying one
Body method.
Background technique
Fixed bed ion exchange equipment is with resin wearing is small, bed is stable, mass-transfer efficiency is high, instantaneous treating capacity is big, fortune
The advantages that row is steady, therefore domestic and international CO2+O2Ground leaching mine mostly uses secure dense bed to handle leachate.But in production journey
All there is the problems such as resin bed easy to harden, resin poison.It is general solve resin in production process it is hardened be by lower feed liquor, on
The mode of liquid backwashes resin bed out, and the mode of the dirty layer for destroying resin bed upper layer solves the problems, such as that resin is hardened.For tree
Rouge poisoning problem generallys use suitable antidote and impregnates to whole tower resin, to achieve the purpose that removing toxic substances.
Resin detoxifies, the main deficiency of cleaning process is: the cleaning of resin, detoxification processes are not able to achieve integration, cannot
It is carried out simultaneously as an organic whole, causes the waste of labour and raw material.And backwash resin bed mode exists
Cleaning effect is not thorough, and suspended matter is removed not exclusively, is impregnated removing toxic substances mode and is difficult to realize the disadvantages of uniformly detoxifying to resin.
In order to improve the utilization rate of equipment and the working efficiency of personnel, process improvement is carried out, resin cleaning, solution are proposed
The integrated new method of poison.
Summary of the invention
The purpose of the present invention is to provide a kind of fixed-bed resin washing and detoxifying integral method, realize resin cleaning,
Detoxification processes carry out simultaneously.
Technical scheme is as follows:
A kind of fixed-bed resin washing and detoxifying integral method, comprising the following steps:
Step 1: the upper end of resin bed in adsorption tower is rinsed with jetting machine, by the big block board on resin bed surface
Layer of scale object is broken into fine particle；
Step 2: washing and detoxifying reagent A is prepared in make-up tank, in the washing and detoxifying reagent A containing NaCl, NaOH,
Sodium pyrophosphate；
Washing and detoxifying reagent A is added in adsorption tower, stops being added after washing and detoxifying reagent A there was not resin；
Step 3: opening tower bottom intake valve, compressed air is passed through into adsorption tower by air compressor machine, solve resin and cleaning
Malicious reagent A is uniformly mixed；
It is then shut off tower bottom intake valve, the efflux in adsorption tower is made to be discharged into wastewater disposal basin from absorption tower bottom；
Step 4: preparing washing and detoxifying reagent B in make-up tank, contain HCl, H in the washing and detoxifying reagent B2O2, alkane
Base phenol polyethenoxy ether；
Washing and detoxifying reagent B is added in adsorption tower, stops adding after washing and detoxifying reagent B did not had the resin in adsorption tower
Enter；
Step 5: opening tower bottom intake valve, compressed air is passed through into adsorption tower by air compressor machine, solve resin and cleaning
Malicious reagent B is uniformly mixed；
Step 6: close tower bottom intake valve, make efflux in adsorption tower by gravity from adsorb tower bottom be discharged into
Enter wastewater disposal basin；
Then tower top intake valve is opened, compressed air is passed through into adsorption tower at the top of adsorption tower by air compressor machine, so that
It remains in the interstitial efflux of resin and is discharged into wastewater disposal basin from absorption tower bottom downwards.
In step 2, the group of the washing and detoxifying reagent A becomes the NaCl of mass concentration 6~8%, mass concentration 3~5%
NaOH, the sodium pyrophosphate of mass concentration 1~2%, remaining is water.
The group of the B of washing and detoxifying reagent described in step 4 becomes the HCl of mass concentration 2~10%, mass concentration 0.5~3%
H2O2, the alkyl phenol polyoxyethylene ether of mass concentration 0.2~0.5%, remaining is water.
In step 1, the discharge pressure of the jetting machine is 7~10Mpa, and flow is 1~2m3/h。
In step 2, washing and detoxifying reagent A and washing and detoxifying reagent B are added from the top of adsorption tower respectively by chemical pump
Enter in adsorption tower, flow 0.5BV/h.
In step 4, washing and detoxifying reagent A and washing and detoxifying reagent B are added from the top of adsorption tower respectively by chemical pump
Enter in adsorption tower, flow 0.5BV/h.
In step 3, air compressor machine pressure >=0.3Mpa, flow is 1~3m3/h。
In step 5, air compressor machine pressure >=0.3Mpa, flow is 1~3m3/h。
Suitable for fixed bed In-situ Leaching Uranium Mine.
Remarkable result of the invention is:
(1) the hardened dirty layer object of the big bulk in resin bed upper end is broken into tiny by the method for the present invention by jetting machine
Particle, solve big blocky dirty layer object deposition in backwash process reduces adsorption tower liquid distributor and crosses water to tower bottom is adsorbed
Area for cutting.
(2) the method for the present invention by into adsorption tower be added washing and detoxifying integration reagent, by resin bed dirt layer object with
Resin poison object is dissolved in integrated reagent, while being sufficiently stirred with compressed air and being mixed resin and integrated reagent, and dirt is made
Layer object and toxicity are uniformly dissolved thoroughly, improve resin washing and detoxifying effect.
(3) fixed-bed resin cleaning, removing toxic substances process are combined into one by the method for the present invention, realize fixed-bed resin cleaning solution
The integration of poison, improves the utilization rate of equipment and the working efficiency of personnel.
Detailed description of the invention
Fig. 1 is device connection schematic diagram used in the method for the present invention；
In figure: 1. make-up tanks；2. wastewater disposal basin；3. air compressor machine；4. jetting machine；5. tower bottom intake valve；6. tower top air inlet
Valve；7. adsorption tower；8. resin bed.
Specific embodiment
The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, a kind of fixed-bed resin washing and detoxifying integral method, comprising the following steps:
Step 1: the upper end of resin bed 8 in adsorption tower 7 is rinsed with jetting machine 4, by the bulk on 8 surface of resin bed
Shape plate layer of scale object is broken into fine particle；The discharge pressure of the jetting machine 4 is 7~10Mpa, and flow is 1~2m3/
h；
Step 2: washing and detoxifying reagent A is prepared in make-up tank 1, the group of the washing and detoxifying reagent A becomes mass concentration 6
~8% NaCl, the NaOH of mass concentration 3~5%, the sodium pyrophosphate of mass concentration 1~2%, remaining is water；
Washing and detoxifying reagent A is added in adsorption tower 7 from the top of adsorption tower 7 by chemical pump, flow 0.5BV/h,
Stop being added after washing and detoxifying reagent A there was not resin；
Step 3: opening tower bottom intake valve 5, compressed air, 3 pressure of air compressor machine are passed through into adsorption tower 7 by air compressor machine 3
>=0.3Mpa, flow 2m3/ h is uniformly mixed resin with washing and detoxifying reagent A；After inflation mixes 2~5h, tower bottom is closed
Intake valve 5 makes the efflux in adsorption tower 7 be discharged into wastewater disposal basin 2 from 7 bottom of adsorption tower；
Step 4: washing and detoxifying reagent B is prepared in make-up tank 1, the group of the washing and detoxifying reagent B becomes mass concentration 2
~10% HCl, the H of mass concentration 0.5~3%2O2, the alkyl phenol polyoxyethylene ether of mass concentration 0.2~0.5%, remaining is
Water；
Washing and detoxifying reagent B is added in adsorption tower 7 by chemical pump, when washing and detoxifying reagent B did not had in adsorption tower 7
Stop being added after resin；
Step 5: opening tower bottom intake valve 5, compressed air, 3 pressure of air compressor machine are passed through into adsorption tower 7 by air compressor machine 3
>=0.3Mpa, flow 2m3/ h, inflation 2~5h of mixing, is uniformly mixed resin with washing and detoxifying reagent B；
Step 6: closing tower bottom intake valve 5, efflux is made to be discharged into wastewater disposal basin from 7 bottom of adsorption tower by gravity
2；
Then tower top intake valve 6 is opened, compressed air is passed through into adsorption tower 7 from 7 top of adsorption tower by air compressor machine 3,
So that remaining in the interstitial efflux of resin is discharged into wastewater disposal basin 2 from 7 bottom of adsorption tower downwards.
Embodiment 1
A kind of In-situ Leaching Uranium Mine fixed-bed resin washing and detoxifying integral method is suitable for fixed bed ground-dipping uranium extraction mine
Mountain, comprising the following steps:
Step 1: adsorption tower upper end resin bed is rinsed with jetting machine, by the hardened dirty layer of the big bulk in resin bed surface
Object is broken into fine particle；The discharge pressure of jetting machine is 10.0Mpa, flow 1m3/h。
Step 2: washing and detoxifying reagent A prepared in make-up tank being added in adsorption tower by chemical pump, from adsorption tower
Top enter, flow 0.5BV/h, after washing and detoxifying reagent A there is not resin stop be added；The washing and detoxifying reagent A
Group become mass concentration 6% NaCl, the NaOH of mass concentration 5%, the sodium pyrophosphate of mass concentration 1%, remaining is water.
Step 3: tower bottom intake valve is opened, compressed air is passed through into adsorption tower by air compressor machine, air compressor machine pressure >=
0.3Mpa, flow 2m3/ h mixes resin uniformly with washing and detoxifying reagent A；After inflation mixing 2h, tower bottom intake valve is closed,
Efflux is discharged into wastewater disposal basin from absorption tower bottom.
Step 4: washing and detoxifying reagent B prepared in make-up tank being added in adsorption tower by chemical pump, when cleaning solves
Malicious reagent B stopped being added after not having the resin in adsorption tower；The group of the washing and detoxifying reagent B becomes mass concentration 10%
HCl, the H of mass concentration 1%2O2, the alkyl phenol polyoxyethylene ether of mass concentration 0.2%, remaining is water.
Step 5: tower bottom intake valve is opened, compressed air is passed through into adsorption tower by air compressor machine, air compressor machine pressure >=
0.3Mpa, flow 2m3/ h, inflation mixing 5h, is uniformly mixed resin with washing and detoxifying reagent B.
Step 6: closing tower bottom intake valve, efflux is discharged into wastewater disposal basin from absorption tower bottom；Then open tower top into
Air valve is passed through compressed air into adsorption tower at the top of adsorption tower by air compressor machine, so that remaining in the interstitial outflow of resin
Liquid is discharged into wastewater disposal basin from absorption tower bottom downwards.
Embodiment 2
A kind of In-situ Leaching Uranium Mine fixed-bed resin washing and detoxifying integrated technique method is suitable for fixed bed ground-dipping uranium extraction
Mine, comprising the following steps:
Step 1: adsorption tower upper end resin bed is rinsed with jetting machine, by the hardened dirty layer of the big bulk in resin bed surface
Object is broken into fine particle；The discharge pressure of jetting machine is 10.0Mpa, flow 1m3/h。
Step 2: washing and detoxifying reagent A prepared in make-up tank being added in adsorption tower by chemical pump, from adsorption tower
Top enter, flow 0.5BV/h, after washing and detoxifying reagent A there is not resin stop be added；The washing and detoxifying reagent A
Group become mass concentration 8% NaCl, the NaOH of mass concentration 4%, the sodium pyrophosphate of mass concentration 1.5%, remaining is water.
Step 3: tower bottom intake valve is opened, compressed air is passed through into adsorption tower by air compressor machine, air compressor machine pressure >=
0.3Mpa, flow 2m3/ h mixes resin uniformly with washing and detoxifying reagent A；After inflation mixing 2h, tower bottom intake valve is closed,
Efflux is discharged into wastewater disposal basin from absorption tower bottom.
Step 4: washing and detoxifying reagent B prepared in make-up tank being added in adsorption tower by chemical pump, when cleaning solves
Malicious reagent B stopped being added after not having the resin in adsorption tower；The group of the washing and detoxifying reagent B becomes mass concentration 8%
HCl, the H of mass concentration 1.5%2O2, the alkyl phenol polyoxyethylene ether of mass concentration 0.3%, remaining is water.
Step 5: opening tower bottom compressed air inlet valve, compressed air, air compressor machine pressure >=0.3Mpa, stream are added into tower
Measure 2m3/ h, inflation mixing 3h, is uniformly mixed resin with washing and detoxifying reagent B.
Step 6: closing tower bottom intake valve, efflux is discharged into wastewater disposal basin from absorption tower bottom；Then open tower top into
Air valve is passed through compressed air into adsorption tower at the top of adsorption tower by air compressor machine, so that remaining in the interstitial outflow of resin
Liquid is discharged into wastewater disposal basin from absorption tower bottom downwards.
Claims (9)
1. a kind of fixed-bed resin washing and detoxifying integral method, it is characterised in that: the following steps are included:
Step 1: the upper end of resin bed (8) in adsorption tower (7) is rinsed with jetting machine (4), by resin bed (8) surface
Big blocky hardened dirty layer object is broken into fine particle；
Step 2: prepare washing and detoxifying reagent A in the make-up tank (1), in the washing and detoxifying reagent A containing NaCl, NaOH,
Sodium pyrophosphate；
Washing and detoxifying reagent A is added in adsorption tower (7), stops being added after washing and detoxifying reagent A there was not resin；
Step 3: opening tower bottom intake valve (5), compressed air is passed through in adsorption tower (7) by air compressor machine (3), make resin and clear
Removing toxic substances reagent A is washed to be uniformly mixed；
Tower bottom intake valve (5) are then shut off, the efflux in adsorption tower (7) is made to be discharged into wastewater disposal basin from adsorption tower (7) bottom
(2)；
Step 4: preparing washing and detoxifying reagent B in make-up tank (1), contain HCl, H in the washing and detoxifying reagent B2O2, alkane
Base phenol polyethenoxy ether；
Washing and detoxifying reagent B is added in adsorption tower (7), is stopped after the resin that washing and detoxifying reagent B did not had in adsorption tower (7)
It is added；
Step 5: opening tower bottom intake valve (5), compressed air is passed through in adsorption tower (7) by air compressor machine (3), make resin and clear
Removing toxic substances reagent B is washed to be uniformly mixed；
Step 6: closing tower bottom intake valve (5), the efflux in adsorption tower (7) is made to pass through gravity from adsorption tower (7) bottom
It is discharged into wastewater disposal basin (2)；
Then tower top intake valve (6) are opened, it is empty is passed through compression in adsorption tower (7) at the top of adsorption tower (7) by air compressor machine (3)
Gas, so that remaining in the interstitial efflux of resin is discharged into wastewater disposal basin (2) from adsorption tower (7) bottom downwards.
2. a kind of fixed-bed resin washing and detoxifying integral method as described in claim 1, it is characterised in that: in step 2, institute
State washing and detoxifying reagent A group become mass concentration 6~8% NaCl, the NaOH of mass concentration 3~5%, mass concentration 1~
2% sodium pyrophosphate, remaining is water.
3. a kind of fixed-bed resin washing and detoxifying integral method as claimed in claim 2, it is characterised in that: institute in step 4
The group for stating washing and detoxifying reagent B becomes the HCl, the H of mass concentration 0.5~3% of mass concentration 2~10%2O2, mass concentration 0.2
~0.5% alkyl phenol polyoxyethylene ether, remaining is water.
4. a kind of fixed-bed resin washing and detoxifying integral method as claimed in claim 3, it is characterised in that: in step 1, institute
The discharge pressure for stating jetting machine (4) is 7~10Mpa, and flow is 1~2m3/h。
5. a kind of fixed-bed resin washing and detoxifying integral method as claimed in claim 4, it is characterised in that: in step 2, lead to
It crosses chemical pump washing and detoxifying reagent A and washing and detoxifying reagent B are added in adsorption tower (7) from the top of adsorption tower (7) respectively, stream
Amount is 0.5BV/h.
6. a kind of fixed-bed resin washing and detoxifying integral method as claimed in claim 5, it is characterised in that: in step 4, lead to
It crosses chemical pump washing and detoxifying reagent A and washing and detoxifying reagent B are added in adsorption tower (7) from the top of adsorption tower (7) respectively, stream
Amount is 0.5BV/h.
7. a kind of fixed-bed resin washing and detoxifying integral method as claimed in claim 6, it is characterised in that: empty in step 3
Press (3) pressure >=0.3Mpa, flow are 1~3m3/h。
8. a kind of fixed-bed resin washing and detoxifying integral method as claimed in claim 7, it is characterised in that: empty in step 5
Press (3) pressure >=0.3Mpa, flow are 1~3m3/h。
9. a kind of fixed-bed resin washing and detoxifying integral method as described in any one of claims 1 to 8, it is characterised in that:
Suitable for fixed bed In-situ Leaching Uranium Mine.
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| CN201910174172.3A CN109967136A (en) | 2019-03-08 | 2019-03-08 | A kind of fixed-bed resin washing and detoxifying integral method |
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| CN201910174172.3A CN109967136A (en) | 2019-03-08 | 2019-03-08 | A kind of fixed-bed resin washing and detoxifying integral method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116351480A (en) * | 2021-12-27 | 2023-06-30 | 新疆中核天山铀业有限公司 | D231-YT anion exchange resin detoxification process |
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Application publication date: 20190705 |