CN220246213U - Automatic control process system for preparing uranium-containing qualified liquid - Google Patents
Automatic control process system for preparing uranium-containing qualified liquid Download PDFInfo
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- CN220246213U CN220246213U CN202321953947.5U CN202321953947U CN220246213U CN 220246213 U CN220246213 U CN 220246213U CN 202321953947 U CN202321953947 U CN 202321953947U CN 220246213 U CN220246213 U CN 220246213U
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- 239000007788 liquid Substances 0.000 title claims abstract description 182
- 238000000034 method Methods 0.000 title claims abstract description 55
- 229910052770 Uranium Inorganic materials 0.000 title claims abstract description 29
- JFALSRSLKYAFGM-UHFFFAOYSA-N uranium(0) Chemical compound [U] JFALSRSLKYAFGM-UHFFFAOYSA-N 0.000 title claims abstract description 29
- 238000002386 leaching Methods 0.000 claims abstract description 145
- 238000003860 storage Methods 0.000 claims abstract description 132
- 230000009466 transformation Effects 0.000 claims abstract description 127
- 239000011347 resin Substances 0.000 claims abstract description 106
- 229920005989 resin Polymers 0.000 claims abstract description 106
- 238000001179 sorption measurement Methods 0.000 claims abstract description 104
- 238000004140 cleaning Methods 0.000 claims abstract description 36
- 239000003795 chemical substances by application Substances 0.000 claims description 111
- 238000012546 transfer Methods 0.000 claims description 85
- 230000001131 transforming effect Effects 0.000 claims description 56
- 239000003480 eluent Substances 0.000 claims description 26
- 229920006395 saturated elastomer Polymers 0.000 claims description 20
- 239000012530 fluid Substances 0.000 claims description 12
- 238000007599 discharging Methods 0.000 claims description 11
- 238000012216 screening Methods 0.000 claims description 6
- 238000004064 recycling Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000010926 purge Methods 0.000 claims 2
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 6
- 230000002285 radioactive effect Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000001502 supplementing effect Effects 0.000 description 10
- 230000000712 assembly Effects 0.000 description 5
- 238000000429 assembly Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000010828 elution Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000002637 fluid replacement therapy Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009854 hydrometallurgy Methods 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- ZIMRZUAJVYACHE-UHFFFAOYSA-N uranium;hydrate Chemical compound O.[U] ZIMRZUAJVYACHE-UHFFFAOYSA-N 0.000 description 1
Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Treatment Of Liquids With Adsorbents In General (AREA)
Abstract
The utility model discloses an automatic control process system for preparing uranium-containing qualified liquid, which comprises an adsorption device, a leaching transformation device, a resin cleaning device, a leaching agent storage and transportation device, a transformation tail liquid storage and transportation device, a qualified liquid storage and transportation device and an automatic control device. The automatic control device is provided with an automatic control valve, a flowmeter, a pressure gauge, a liquid level gauge and other automatic control instruments, and the automatic control device is switched by opening and closing the automatic control valve in the processes of material conveying, adsorption, leaching, transformation, cleaning and the like. The automation degree is high, and misoperation and inaccurate switching process of operators can be effectively avoided. And the production process can realize unmanned on duty, can realize a key operation in the control room, operating environment is good, can realize remote control, staff does not contact equipment, has effectively reduced the radioactive harm of uranium-bearing material to staff, and the device is more environmental protection in production, advanced.
Description
Technical Field
The utility model relates to the technical field of uranium water smelting processes, in particular to an automatic control process system for preparing qualified uranium-containing liquid.
Background
The uranium-containing leaching solution is obtained after the ore or the ore layer of the uranium mine is leached, and because the uranium concentration is low, before the uranium product is produced, the uranium-containing leaching solution is firstly required to be prepared into qualified liquid, the uranium concentration in the solution is improved, and the common technological processes for improving the uranium concentration mainly comprise adsorption, leaching, transformation and the like.
In the uranium hydrometallurgy process, resin is firstly adopted to adsorb uranium-containing leaching solution, uranium in the leaching solution is transferred to the resin, and the adsorption process is generally carried out in an adsorption tower; after the adsorption is finished, leaching uranium on the resin into a water phase through a leaching agent to obtain qualified liquid, wherein the leaching process is generally carried out in a leaching tower; the leached resin is subjected to transformation, washing and screening and then is returned to be adsorbed again.
According to the device for preparing qualified liquid from the domestic traditional uranium-bearing leaching liquid, the automation level is low, automatic control equipment is lacked, the manual investment is large, and the device is used for switching valves in production, and is complex in process, complex in operation and high in labor intensity. According to the current 4-class 3 operation per day, the personnel configuration of 4 persons per class is considered, and 16 persons/day are needed manually.
In addition, the phenomenon of leakage and dripping in production exists, and operators operate equipment in the production process, so that the equipment is protected to a certain extent, but the equipment is also easy to contact uranium-containing materials, and the materials have certain radioactivity and can cause radioactive harm to the operators.
Disclosure of Invention
The utility model aims at solving the technical defect of low automatic control level in the prior art and provides an automatic control process system for preparing uranium-containing qualified liquid.
The technical scheme adopted for realizing the purpose of the utility model is as follows:
an automatic control process system for preparing uranium-containing qualified liquid comprises an adsorption device, a leaching transformation device, a resin cleaning device, a leaching agent storage and transportation device, a transformation tail liquid storage and transportation device, a qualified liquid storage and transportation device and an automatic control device;
the discharging end of the adsorption device is communicated with the feeding end of the leaching transformation device so as to transfer the saturated resin after adsorption to the leaching transformation device; the discharging end of the leaching transformation device is communicated with the feeding end of the adsorption device so as to return the cleaned lean resin to the adsorption device for recycling;
the resin cleaning device comprises a vibrating screen and a resin transfer tank; the feeding port of the vibrating screen is communicated with the discharging end of the leaching and transforming device so as to receive lean resin conveyed by the leaching and transforming device and carry out screening and cleaning; the discharge port of the vibrating screen is connected with the feed port of the resin transfer tank; the lean resin passing through the vibrating screen enters the resin transfer tank; the resin transfer tank is communicated with the feeding end of the leaching transformation device so as to convey the collected lean resin into the leaching transformation device;
the leaching agent storage and transportation device and the transforming agent storage and transportation device are communicated with the feeding end of the leaching transforming device, and a leaching agent or transforming agent is provided for the leaching transforming device;
the transformation tail liquid storage and transportation device and the qualified liquid storage and transportation device are communicated with the discharge end of the leaching transformation device so as to collect qualified liquid or transformation tail liquid treated by the leaching transformation device.
In the technical scheme, the eluent storage and transportation device comprises an eluent storage tank and an eluent pump;
the transforming agent storage and transportation device comprises a transforming agent storage tank and a transforming agent pump.
In the technical scheme, the transfer tail liquid storage and transportation device comprises a transfer tail liquid storage tank and a transfer tail liquid pump;
the qualified liquid storage and transportation device comprises a qualified liquid storage tank and a qualified liquid pump.
In the technical scheme, the automatic control device comprises an adsorption tower feeding control component, an adsorption tower top automatic control component, an adsorption tower bottom automatic control component, a leaching transformation tower top automatic control component, a leaching transformation tower bottom automatic control component and a cleaning automatic control component.
In the above technical scheme, the adsorption column top self-control component comprises a first pressure instrument, a first liquid level instrument, a first liquid supplementing self-control valve, a lean resin self-control valve, a first pressure air self-control valve and a first exhaust self-control valve.
In the above technical scheme, the automatic control component at the bottom of the adsorption tower comprises a saturated resin discharging automatic control valve, an adsorption tail liquid automatic control valve and an adsorption serial tower automatic control valve.
In the technical scheme, the leaching transformation type tower top automatic control component comprises a second pressure instrument, a second liquid level instrument, a resin automatic control valve after cleaning, a second liquid supplementing automatic control valve, a transformation agent automatic control valve, a second pressure air automatic control valve, a second exhaust automatic control valve, a leaching agent automatic control valve and a saturated resin feeding automatic control valve.
In the technical scheme, the self-control component at the bottom of the leaching transformation tower comprises a lean resin self-control valve, a lean resin self-control valve after cleaning, a water supplementing return self-control valve, an emptying self-control valve, a transformation tail liquid self-control valve, a qualified liquid self-control valve and a leaching transformation serial tower self-control valve.
In the above technical scheme, the cleaning automatic control component comprises a third pressure instrument, a third liquid level instrument, a third exhaust automatic control valve, a lean resin automatic control valve, a third fluid infusion automatic control valve and a third pressure air automatic control valve.
In the technical scheme, the automatic control device further comprises a transformation tail liquid conveying automatic control component, a transformation tail liquid storage automatic control component, a qualified liquid conveying automatic control component, a qualified liquid storage automatic control component, a transformation agent conveying automatic control component, a transformation agent storage automatic control component, a leaching agent conveying automatic control component and a leaching agent storage automatic control component.
Compared with the prior art, the utility model has the beneficial effects that:
1. the automatic control process system for preparing the uranium-containing qualified liquid is provided with an automatic control valve, a flowmeter, a pressure gauge, a liquid level gauge and other automatic control instruments, and is switched by opening and closing the automatic control valve in the processes of material conveying, adsorption, leaching, transformation, cleaning and the like. The automation degree is high, and misoperation and inaccurate switching process of operators can be effectively avoided. And the production process can realize unattended operation, and one-key operation can be realized in a control room, so that the operation environment is good.
2. The automatic control process system for preparing the uranium-containing qualified liquid can realize remote control, and staff does not contact equipment, so that the radioactive hazard of uranium-containing materials to staff is effectively reduced, and the device is more environment-friendly and advanced in production.
Drawings
FIG. 1 is a schematic diagram of the overall structure of an autonomous process system for preparing uranium-containing qualified liquid;
FIG. 2 is a schematic diagram showing the structure of the adsorption apparatus;
FIG. 3 is a schematic view of the construction of the washing and converting device;
FIG. 4 is a schematic view showing the structure of a resin cleaning apparatus;
FIG. 5 is a schematic diagram of the structure of the eluent storage and transportation device;
FIG. 6 is a schematic diagram of a transfer agent storage and transportation device;
FIG. 7 is a schematic diagram of a transfer tail fluid storage and transportation device;
FIG. 8 is a schematic structural view of a qualified liquid storage and transportation device;
in the figure: the device comprises an adsorption device, a leaching transfer device, a resin cleaning device, a leaching agent storage and transportation device, a transfer tail liquid storage and transportation device, a qualified liquid storage and transportation device and an automatic control device;
the device comprises a 1-adsorption tower, a 2-leaching transformation tower, a 3-vibrating screen, a 4-resin transfer tank, a 5-leaching agent storage tank, a 6-leaching agent pump, a 7-transformation agent storage tank, an 8-transformation agent pump, a 9-qualified liquid storage tank, a 10-qualified liquid pump, a 11-transformation tail liquid storage tank, a 12-transformation tail liquid pump, a 13-adsorption tower feeding control component, a 14-adsorption tower top automatic control component, a 15-adsorption tower bottom automatic control component, a 16-leaching transformation tower top automatic control component, a 17-leaching transformation tower bottom automatic control component, a 18-cleaning automatic control component, a 19-transformation tail liquid conveying automatic control component, a 20-qualified liquid conveying automatic control component, a 21-transformation agent conveying automatic control component, a 22-transformation agent storage automatic control component, a 23-leaching agent conveying automatic control component, a 24-transformation agent storage automatic control component, a 25-transformation tail liquid storage automatic control component and a 26-qualified liquid storage automatic control component.
Detailed Description
The present utility model will be described in further detail with reference to specific examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Example 1
An automatic control process system for preparing uranium-containing qualified liquid, as shown in figure 1, comprises an adsorption device (I), a leaching transformation device (II), a resin cleaning device (III), a leaching agent storage and transportation device (IV), a transformation agent storage and transportation device (five), a transformation tail liquid storage and transportation device (six) and a qualified liquid storage and transportation device (seven) and an automatic control device (eight) which is arranged on the devices in a distributed manner;
the adsorption device (I) comprises two adsorption towers 1 (1A and 1B) which are communicated with each other as shown in figure 2;
the leaching transformation device (II) comprises four leaching transformation towers 2 (2A, 2B, 2C and 2D); the discharge end of the adsorption tower 1 is communicated with the feed end of the leaching transformation tower 2 so as to transfer the saturated resin after adsorption to the leaching transformation tower 2; the discharge end of the leaching transformation tower 2 is communicated with the feed end of the adsorption tower 1 so as to return the cleaned lean resin to the adsorption tower 1 for recycling;
the resin cleaning and recycling device (III) comprises a vibrating screen 3 and a resin transfer tank 4; the discharge port of the vibrating screen 3 is connected with the feed port of the resin transfer tank 4; the feed inlet of the vibrating screen 3 is communicated with the discharge end of the leaching transformation tower 2 so as to receive lean resin conveyed out of the leaching transformation tower 2 and carry out screening and cleaning; the lean resin passing through the vibrating screen 3 enters the resin transfer tank 4; the resin transfer tank 4 is communicated with the feeding end of the leaching transformation tower 2 so as to convey the collected lean resin into the leaching transformation tower 2;
the leaching agent storage and transportation device (IV) and the transforming agent storage and transportation device (V) are communicated with the feeding end of the leaching transforming device (II) to provide leaching agent or transforming agent for the leaching transforming device (II); the leaching agent storage and transportation device (IV) comprises a leaching agent storage tank 5 and a leaching agent pump 6; the transforming agent storage and transportation device (V) comprises a transforming agent storage tank 7 and a transforming agent pump 8;
the transferring tail liquid storage and transportation device (six) and the qualified liquid storage and transportation device (seven) are communicated with the discharge end of the leaching transferring device (two) so as to collect qualified liquid or transferring tail liquid treated by the leaching transferring device (two); the transfer tail liquid storage and transportation device (six) comprises a transfer tail liquid storage tank 11 and a transfer tail liquid pump 12; the qualified liquid storage and transportation device (seven) comprises a qualified liquid storage tank 9 and a qualified liquid pump 10.
Example 2
In this embodiment, an automatic control device (eight) is described based on embodiment 1.
The automatic control device (eight) comprises:
two groups of adsorption tower feed control assemblies 13 (13A, 13B) respectively installed at the feed ends of the two adsorption towers 1 (1A and 1B) and respectively used for controlling the feed amount (the feed amount of uranium-containing leaching liquid, the feed amount of lean resin and the liquid supplementing amount) of the adsorption towers 1 (1A and 1B);
two groups of adsorption tower top self-control components 14 (14A, 14B) respectively arranged at the tops of the two adsorption towers 1 (1A and 1B) are respectively used for controlling the opening and closing of the two adsorption tower 1 top self-control valves and the indication of liquid level and pressure; the system specifically comprises a first pressure instrument, a first liquid level instrument, a first fluid supplementing self-control valve, a lean resin self-control valve, a first pressure air self-control valve and a first exhaust self-control valve;
two groups of adsorption tower bottom self-control components 15 (15A and 15B) respectively arranged at the bottoms of the two adsorption towers 1 (1A and 1B) are respectively used for controlling the opening and closing of the bottom self-control valves of the two adsorption towers 1; the device specifically comprises a saturated resin discharging automatic control valve, an adsorption tail liquid automatic control valve and an adsorption serial tower automatic control valve;
four groups of leaching-transformation tower top self-control components 16 (16A, 16B, 16C and 16D) respectively arranged at the tops of the four leaching-transformation towers 2 (2A, 2B, 2C and 2D) are respectively used for controlling the opening and closing of the four leaching-transformation tower 2 top self-control valves and the indication of liquid level and pressure; the device specifically comprises a second pressure instrument, a second liquid level instrument, a resin self-control valve after cleaning, a second liquid supplementing self-control valve, a conversion agent self-control valve, a second pressure air self-control valve, a second exhaust self-control valve, a leaching agent self-control valve and a saturated resin feeding self-control valve;
four groups of leaching transformation tower bottom self-control components 17 (17A, 17B, 17C and 17D) which are respectively arranged at the bottoms of the four leaching transformation towers 2 (2A, 2B, 2C and 2D) are respectively used for controlling the opening and closing of the four leaching transformation tower 2 bottom self-control valves; the device specifically comprises a lean resin automatic control valve, a lean resin automatic control valve after cleaning, a water supplementing return automatic control valve, an emptying automatic control valve, a transformation tail liquid automatic control valve, a qualified liquid automatic control valve and a leaching transformation tower-series automatic control valve;
the cleaning automatic control assembly 18 is used for controlling the opening and closing of the automatic control valve of the resin transfer tank 4 and indicating the liquid level and the pressure; the system specifically comprises a third pressure instrument, a third liquid level instrument, a third exhaust self-control valve, a lean resin self-control valve, a third fluid replacement self-control valve and a third pressure air self-control valve;
transfer tail fluid delivery auto-control assembly 19: the automatic control device is used for controlling the conveying amount of the transfer tail liquid and controlling the start and stop of the transfer tail liquid pump 12 and the start and stop of the inlet and outlet automatic control valves of the transfer tail liquid pump 12 according to the conveying amount.
And the qualified liquid conveying automatic control assembly 20 is used for controlling the conveying amount of the qualified liquid and controlling the start and stop of the qualified liquid pump 10 and the start and stop of the inlet and outlet automatic control valves of the qualified liquid pump 10 according to the conveying amount.
The transforming agent delivery automatic control component 21 is used for controlling the delivery quantity of transforming agent, and controlling the start and stop of the transforming agent pump 8 and the start and stop of the inlet and outlet automatic control valves of the transforming agent pump 8 according to the delivery quantity.
The transforming agent storage automatic control component 22 is used for controlling the storage amount of transforming agent in the transforming agent storage tank 7 and controlling the opening and closing of an inlet automatic control valve of the transforming agent storage tank 7 according to the liquid level in the transforming agent storage tank 7.
The eluent delivery automatic control component 23 is used for controlling the delivery quantity of the eluent and controlling the start and stop of the eluent pump 6 and the start and stop of the inlet and outlet automatic control valves of the eluent pump 6 according to the delivery quantity.
The eluent storage automatic control component 24 is used for controlling the storage amount of the eluent in the eluent storage tank 5 and controlling the opening and closing of the inlet automatic control valve of the eluent storage tank 5 according to the liquid level of the eluent storage tank 5.
The transformation tail liquid storage automatic control component 25 is used for controlling the storage quantity of transformation tail liquid in the transformation tail liquid storage tank 11 and controlling the opening and closing of an inlet automatic control valve of the transformation tail liquid storage tank 11 according to the liquid level of the transformation tail liquid storage tank 11.
And the qualified liquid storage automatic control component 26 is used for controlling the storage quantity of the qualified liquid in the qualified liquid storage tank 9 and controlling the opening and closing of an inlet automatic control valve of the qualified liquid storage tank 9 according to the liquid level of the qualified liquid storage tank 9.
Example 3
This example describes the process flow based on examples 1 and 2.
The self-control process system comprises the following process steps:
step 1: adsorption of
Adding uranium-containing leaching solution and lean resin into the adsorption tower 1; absorbing uranium-containing leaching liquid and lean resin in an absorption tower 1 to obtain saturated resin;
specifically, the adsorption process requires two adsorption towers 1 connected in series, wherein the first adsorption tower is 1A, the last adsorption tower is 1B, and the adsorption operation process is described. It was confirmed that the self-control valves in the adsorption tower top self-control module 14 and the adsorption tower bottom self-control module 15 of the two adsorption towers 1A, 1B were closed. Opening a first exhaust self-control valve in the adsorption tower top self-control assembly 14B; the adsorption column self-control valve and the adsorption column feed control assembly 13A in the adsorption column bottom self-control assembly 15A are opened. When the feeding flow of the feeding control component 13A of the adsorption tower reaches a set value or the first pressure instrument in the self-control component 14B at the top of the adsorption tower reaches a set value, the first exhaust self-control valve in the self-control component 14B at the top of the adsorption tower is closed, and meanwhile, the self-control valve for the adsorption tail liquid in the self-control component 15B at the bottom of the adsorption tower is opened to start adsorption feeding. When the feed flow rate of the adsorption tower feed control assembly 13A reaches a set value, the adsorption serial tower self-control valves in the adsorption tower feed control assembly 13A and the adsorption tower bottom self-control assembly 15A are closed, the adsorption of the adsorption tower 1A is completed, and the adsorption tower 1B can continue to adsorb according to the method.
Step 2: saturated resin transport
Transferring the saturated resin into a leaching transformation tower 2;
specifically, the adsorption column 1a→the elution transfer column 2A is exemplified.
It was confirmed that the self-controlled valves in both the adsorption column top self-controlled assembly 14A and the adsorption column bottom self-controlled assembly 15A were closed. Confirming that the value of a second liquid level instrument in the leaching transformation tower top automatic control component 16A is 0, and opening a saturated resin feeding automatic control valve and a second exhaust automatic control valve in the leaching transformation tower top automatic control component 16A; opening a saturated resin discharging self-control valve in the adsorption tower bottom self-control assembly 15A and a first pressure air self-control valve in the adsorption tower top self-control assembly 14A; under the pushing action of compressed air, saturated resin is transferred from the adsorption tower 1A to the leaching transformation tower 2A through the saturated resin discharging self-control valve and the saturated resin feeding self-control valve. When the first liquid level instrument in the adsorption tower top automatic control assembly 14A is 0, the transfer is completed, and the saturated resin discharging automatic control valve in the adsorption tower bottom automatic control assembly 15A and the first pressure air automatic control valve in the adsorption tower top automatic control assembly 14A are closed to stop the transfer; and opening a first exhaust automatic control valve in the adsorption tower top automatic control assembly 14A to deflate until a first pressure instrument in the adsorption tower top automatic control assembly 14A is 0, and completing the transfer of saturated resin from the adsorption tower 1A to the leaching transformation tower 2A.
Step 3: rinsing
Adding a leaching agent into the leaching transformation tower 2, and leaching the saturated resin under the action of the leaching agent to obtain qualified liquid and lean resin; collecting qualified liquid;
the leaching process needs two leaching transformation towers 2 to be connected in series, wherein the leaching first tower is 2A, the leaching last tower is 2B, and the leaching operation process is described.
Confirm that the self-controlled valves in the rinse transfer column top self-controlled assemblies 16A and 16B and the rinse transfer column bottom self-controlled assemblies 17A and 17B of the rinse transfer columns 2A, 2B are closed. Opening the leaching transformation string tower automatic control valve in the leaching transformation tower bottom automatic control component 17A and the leaching agent automatic control valve in the leaching transformation tower top automatic control component 16B, so that the leaching transformation towers 2A and 2B are communicated, and opening a second exhaust automatic control valve in the leaching transformation tower top automatic control component 16B; the eluent self-control valve in the eluent inversion column top self-control assembly 16A is opened. And (3) starting the leaching agent pump 6, and when the flow of the leaching agent pump 6 reaches a set value or the liquid level in the leaching transformation tower 2B reaches a set value, starting a qualified liquid automatic control valve in the leaching transformation tower bottom automatic control assembly 17B, and closing a second exhaust automatic control valve in the leaching transformation tower top automatic control assembly 16B to start leaching feeding. When the flow rate of the eluent pump 6 reaches the set value, the eluent pump 6 is turned off, the eluent automatic control valve in the eluent automatic control component 16A at the top of the leaching transformation tower is turned off, the qualified liquid automatic control valve in the automatic control component 17B at the bottom of the leaching transformation tower is turned off, and the leaching process of the leaching transformation tower 2A-2B is finished.
In the rinsing process, if the liquid level of the rinsing agent storage automatic control component 24 is higher than the set value (the highest value), the rinsing agent storage automatic control component 24 sends out an alarm signal, and the inlet automatic control valve of the rinsing agent storage tank 5 is closed.
In the rinsing process, if the liquid level of the rinsing agent storage automatic control component 24 is higher than the set value (intermediate value), the rinsing agent storage automatic control component 24 sends out an alarm signal, and an inlet automatic control valve of the rinsing agent storage tank 5 is opened.
In the rinsing process, if the liquid level of the rinsing agent storage automatic control component 24 is lower than the set value (the lowest value), the rinsing agent storage automatic control component 24 sends out an alarm signal, the rinsing agent pump 6 is closed, and meanwhile, the inlet and outlet automatic control valves of the rinsing agent pump 6 in the rinsing agent conveying automatic control component 23 are closed.
In the rinsing process, if the liquid level of the qualified liquid storage automatic control component 26 is higher than a set value (highest value), the qualified liquid storage automatic control component 26 sends an alarm signal, the rinse agent pump 6 is closed, and meanwhile, the inlet and outlet automatic control valves of the rinse agent pump 6 in the rinse agent conveying automatic control component 23 are closed.
In the rinsing process, if the liquid level of the qualified liquid storage automatic control component 26 is higher than a set value (intermediate value), the qualified liquid storage automatic control component 26 sends out an alarm signal, the qualified liquid pump 10 is started, and meanwhile, the inlet and outlet automatic control valves of the qualified liquid pump 10 in the qualified liquid conveying automatic control component 20 are started.
In the rinsing process, if the liquid level of the qualified liquid storage automatic control system 26 installed on the qualified liquid storage tank 9 is lower than a set value (the lowest value), the qualified liquid storage automatic control system 26 sends out an alarm signal, the qualified liquid pump 10 is closed, and meanwhile, the inlet and outlet automatic control valves of the qualified liquid pump 10 in the qualified liquid conveying automatic control system 20 are closed.
Step 4: transformation type
Adding a transformation agent into the leaching transformation tower 2, and transforming the lean resin obtained after leaching under the action of the transformation agent to obtain transformed lean resin and transformation tail liquid; collecting the transformed tail liquid;
specifically, the transformation was performed using 1 leaching transformation tower 2, and the transformation operation is described as an example of 2A. Confirm that the automatic control valves in the leaching transfer tower top automatic control component 16A and the leaching transfer tower bottom automatic control component 17A of the leaching transfer tower 2A are closed. Opening a transformation tail liquid automatic control valve in the leaching transformation tower bottom automatic control assembly 17A; the transfer agent pilot valve in the rinse transfer tower top pilot assembly 16A is opened. And opening the transfer agent connecting pump 8 and the transfer agent conveying automatic control assembly 21, closing the transfer agent connecting pump 8 and the transfer agent conveying automatic control assembly 21 when the transfer agent conveying automatic control assembly 21 detects that the flow of the transfer agent connecting pump 8 reaches a set value, closing a transfer agent automatic control valve in the rinsing transfer tower top automatic control assembly 16A, and ending the transfer process of the rinsing transfer tower 2A.
In the process of transformation, if the liquid level of the transforming agent storage automatic control component 22 is higher than a set value (highest value), the transforming agent storage automatic control component 22 sends out an alarm signal, and an inlet automatic control valve of the transforming agent storage tank 7 in the transforming agent storage automatic control component 22 is closed.
In the transformation process, if the liquid level of the transforming agent storage automatic control component 22 is lower than the set value (intermediate value), the transforming agent storage automatic control component 22 sends out an alarm signal, and an inlet automatic control valve of the transforming agent storage tank 7 in the transforming agent storage automatic control component 22 is opened.
In the transformation process, if the liquid level of the transforming agent storage automatic control component 22 is lower than a set value (the lowest value), the transforming agent storage automatic control component 22 sends an alarm signal, the transforming agent pump 8 is closed, and meanwhile, the inlet and outlet automatic control valves of the transforming agent pump 8 in the transforming agent storage automatic control component 22 are closed.
In the transformation process, if the transformation tail liquid storage automatic control component 25 displays that the liquid level is higher than a set value (highest value), the transformation tail liquid storage automatic control component 25 sends out an alarm signal, the transformation agent pump 8 is closed, and meanwhile, the inlet and outlet automatic control valves of the transformation agent pump 8 in the transformation agent conveying automatic control component 21 are closed.
In the process of transformation, if the transformation tail liquid storage automatic control component 25 displays that the liquid level is higher than a set value (intermediate value), the transformation tail liquid storage automatic control component 25 sends out an alarm signal, the transformation tail liquid pump 12 is started, and meanwhile, an inlet and outlet automatic control valve of the transformation tail liquid pump 12 in the transformation tail liquid conveying automatic control component 19 is started.
In the process of transformation, if the transformation tail liquid storage automatic control component 25 shows that the liquid level is lower than the set value (the lowest value), the transformation tail liquid storage automatic control component 25 sends out an alarm signal, the transformation tail liquid pump 12 is closed, and meanwhile, the inlet and outlet automatic control valves of the transformation tail liquid pump 12 in the transformation tail liquid conveying automatic control component 19 are closed.
Step 5: lean resin screening, cleaning and transferring
Transferring the transformed lean resin to a vibrating screen 3 for screening and cleaning, and storing in a resin transfer tank 4; transferring the lean resin stored in the resin transfer tank 4 to the eluting transfer tower 2 in sequence;
specifically, in the process of cleaning and transferring the lean resin, the movement route of the lean resin is as follows: eluting the transformation tower 2, vibrating screen 3, resin transfer tank 4 and eluting the transformation tower 2. Taking the leaching and transferring tower 2A as an example, lean resin is transferred from the leaching and transferring tower 2A to a resin transfer tank 4 through a vibrating screen 3 and then is transferred to the leaching and transferring tower 2D in a pressing mode.
Confirm that the valves of the rinse and transfer column top and bottom automatic control assemblies 16A and 17A of the rinse and transfer column 2A are closed. Confirming that the third liquid level meter in the cleaning automatic control component 18 is 0m, opening the vibrating screen 3, opening the third exhaust automatic control valve and the lean resin automatic control valve in the cleaning automatic control component 18, opening the lean resin automatic control valve in the leaching transformation tower bottom automatic control component 17D and the second exhaust automatic control valve in the leaching transformation tower top automatic control component 16D, enabling resin to enter the resin transfer tank 4 by gravity, enabling the third liquid level meter in the cleaning automatic control component 18 to reach a set value, opening the lean resin automatic control valve in the Guan Linxi transformation tower bottom automatic control component 17D, closing the vibrating screen 6, and closing the third exhaust automatic control valve and the lean resin automatic control valve in the cleaning automatic control component 18.
Confirm that the self-controlled valves in the bottom self-controlled assembly 17D and the top self-controlled assembly 16D are all closed. And opening a second exhaust automatic control valve and a cleaned resin automatic control valve in the leaching transformation tower top automatic control assembly 16D, and opening a third pressure air automatic control valve in the cleaning automatic control assembly 18 to start the transfer of the lean resin from the resin transfer tank 4 to the leaching transformation tower 2D. When the third liquid level meter in the cleaning automatic control assembly 18 is 0, the third pressure automatic control valve is closed, and when the third pressure meter in the cleaning automatic control assembly 18 reaches a set value, the third exhaust automatic control valve is opened, and the transfer is completed.
Step 6: the lean resin stored in the eluting transfer column 2 and the adsorption column 1 are recycled.
The control process will be described by taking the transfer of the elution transfer column 2D to the adsorption column 1A as an example.
It was confirmed that the self-controlled valves in the adsorption column top self-controlled assembly 14A were all closed. The first exhaust automatic control valve and the lean resin automatic control valve in the adsorption tower top automatic control assembly 14A are opened, the second exhaust automatic control valve in the leaching transformation tower top automatic control assembly 16D and the lean resin automatic control valve in the leaching transformation tower bottom automatic control assembly 17D are closed, the lean resin automatic control valve after cleaning in the leaching transformation tower bottom automatic control assembly 17D and the second pressure air automatic control valve in the leaching transformation tower top automatic control assembly 16D are opened, and the lean resin pouring is started.
When the second liquid level meter in the leaching and transferring type tower top automatic control component 16D is 0 or the first liquid level meter in the adsorption tower top automatic control component 14A is a set value, the second pressure air automatic control valve in the leaching and transferring type tower top automatic control component 16D is closed, when the second pressure meter in the leaching and transferring type tower top automatic control component 16D is a set value, the second exhaust automatic control valve in the leaching and transferring type tower top automatic control component 16D is opened, the lean resin automatic control valve after cleaning in the leaching and transferring type tower bottom automatic control component 17D is closed, and the transfer is completed.
In the process, a first liquid supplementing automatic control valve in the adsorption tower top automatic control assembly 14, a second liquid supplementing automatic control valve in the leaching conversion tower top automatic control assembly 16 and a third liquid supplementing automatic control valve in the cleaning automatic control assembly 18 are respectively opened at the low limit value and closed at the high limit value according to the setting requirements of a first liquid level instrument, a second liquid level instrument and a third liquid level instrument in the assemblies.
The number of the adsorption towers 1 and the leaching transformation towers 2 can be increased or reduced according to the production requirement, and the number of the matched adsorption tower feeding control assembly 13, the adsorption tower top automatic control assembly 14, the adsorption tower bottom automatic control assembly 15, the leaching transformation tower top automatic control assembly 16 and the leaching transformation tower bottom automatic control assembly 17 is correspondingly increased or reduced.
The number of the vibrating screen 3, the resin transfer tank 4, the eluent storage tank 5, the eluent pump 6, the transforming agent storage tank 7, the transforming agent pump 8, the qualified liquid storage tank 9, the qualified liquid pump 10, the transforming tail liquid storage tank 11 and the transforming tail liquid pump 12 can be increased according to production requirements, and the number of the matched cleaning self-control components 18, the transforming tail liquid conveying self-control components 19, the qualified liquid conveying self-control components 20, the transforming agent conveying self-control components 21, the transforming agent storage self-control components 22, the eluent conveying self-control components 23, the eluent storage self-control components 24, the transforming tail liquid storage self-control components 25 and the qualified liquid storage self-control components 26 is correspondingly increased.
The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.
Claims (10)
1. An automatic control process system for preparing uranium-containing qualified liquid is characterized by comprising an adsorption device, a leaching transformation device, a resin cleaning device, a leaching agent storage and transportation device, a transformation tail liquid storage and transportation device, a qualified liquid storage and transportation device and an automatic control device;
the discharging end of the adsorption device is communicated with the feeding end of the leaching transformation device so as to transfer the saturated resin after adsorption to the leaching transformation device; the discharging end of the leaching transformation device is communicated with the feeding end of the adsorption device so as to return the cleaned lean resin to the adsorption device for recycling;
the resin cleaning device comprises a vibrating screen and a resin transfer tank; the feeding port of the vibrating screen is communicated with the discharging end of the leaching and transforming device so as to receive lean resin conveyed by the leaching and transforming device and carry out screening and cleaning; the discharge port of the vibrating screen is connected with the feed port of the resin transfer tank; the lean resin passing through the vibrating screen enters the resin transfer tank; the resin transfer tank is communicated with the feeding end of the leaching transformation device so as to convey the collected lean resin into the leaching transformation device;
the leaching agent storage and transportation device and the transforming agent storage and transportation device are communicated with the feeding end of the leaching transforming device, and a leaching agent or transforming agent is provided for the leaching transforming device;
the transformation tail liquid storage and transportation device and the qualified liquid storage and transportation device are communicated with the discharge end of the leaching transformation device so as to collect qualified liquid or transformation tail liquid treated by the leaching transformation device.
2. The self-controlled process system of claim 1, wherein the eluent storage and transportation device comprises a eluent storage tank and a eluent pump;
the transforming agent storage and transportation device comprises a transforming agent storage tank and a transforming agent pump.
3. The autonomous process system of claim 1, wherein said transfer tail fluid storage and transportation means comprises a transfer tail fluid storage tank and a transfer tail fluid pump;
the qualified liquid storage and transportation device comprises a qualified liquid storage tank and a qualified liquid pump.
4. The autonomous process system of claim 1, wherein said autonomous device comprises an adsorption column feed control assembly, an adsorption column top autonomous assembly, an adsorption column bottom autonomous assembly, a rinse-transfer column top autonomous assembly, a rinse-transfer column bottom autonomous assembly, and a purge autonomous assembly.
5. The autonomous process system of claim 4, wherein said adsorption column top autonomous assembly comprises a first pressure gauge, a first liquid level gauge, a first make-up autonomous valve, a lean resin autonomous valve, a first pressure autonomous valve, and a first vent autonomous valve.
6. The self-controlled process system according to claim 4, wherein the self-controlled components at the bottom of the adsorption tower comprise a saturated resin discharge self-controlled valve, an adsorption tail liquid self-controlled valve and an adsorption serial tower self-controlled valve.
7. The self-controlled process system of claim 4, wherein the rinse-and-turn column top self-control assembly comprises a second pressure gauge, a second liquid level gauge, a post-rinse resin self-control valve, a second make-up fluid self-control valve, a turn agent self-control valve, a second pressure air self-control valve, a second vent self-control valve, a rinse agent self-control valve, and a saturated resin feed self-control valve.
8. The self-controlled process system of claim 4, wherein the rinse-off transfer column bottom self-control assembly comprises a lean resin self-control valve, a post-rinse lean resin self-control valve, a make-up water return self-control valve, a vent self-control valve, a transfer tail liquid self-control valve, a reject liquid self-control valve, and a rinse-off transfer column string self-control valve.
9. The autonomous process system of claim 4, wherein said purge autonomous assembly comprises a third pressure gauge, a third liquid level gauge, a third exhaust autonomous valve, a lean resin autonomous valve, a third make-up autonomous valve, and a third pressure autonomous valve.
10. The autonomous process system of claim 4, wherein said autonomous device further comprises a transfer tail fluid transfer autonomous assembly, a transfer tail fluid storage autonomous assembly, a pass fluid transfer autonomous assembly, a pass fluid storage autonomous assembly, a transfer agent transfer autonomous assembly, a transfer agent storage autonomous assembly, a rinse agent transfer autonomous assembly, a rinse agent storage autonomous assembly.
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| CN202321953947.5U CN220246213U (en) | 2023-07-24 | 2023-07-24 | Automatic control process system for preparing uranium-containing qualified liquid |
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| CN202321953947.5U CN220246213U (en) | 2023-07-24 | 2023-07-24 | Automatic control process system for preparing uranium-containing qualified liquid |
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