CN215693889U - Small skid-mounted saturated brine refining device - Google Patents
Small skid-mounted saturated brine refining device Download PDFInfo
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- CN215693889U CN215693889U CN202122098498.8U CN202122098498U CN215693889U CN 215693889 U CN215693889 U CN 215693889U CN 202122098498 U CN202122098498 U CN 202122098498U CN 215693889 U CN215693889 U CN 215693889U
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Abstract
The utility model discloses a small skid-mounted saturated brine refining device, which is characterized in that a ceramic membrane front impurity removal device and a ceramic membrane concentrated solution blowdown device are respectively assembled on a first skid-mounted integrated block according to the process sequence and characteristics, a ceramic membrane filtering device, a back flushing device, a ceramic membrane cleaning device and a ceramic membrane clear solution post-treatment device are assembled on a second skid-mounted integrated block, and scattered and complex process devices are tightly and orderly integrated in a limited space, so that the device is miniaturized and tightly integrated, and the devices are orderly, reasonably and tightly arranged, thereby ensuring the refining effect, simplifying the process, ensuring the continuous and stable operation of equipment, facilitating the transportation and the installation, and saving the land. Furthermore, the technology of the internet of things is applied to debugging and control of the device, remote debugging and control in different places are facilitated, the device is particularly suitable for the situation that the flow of people is limited in the epidemic situation, and meanwhile, the operation cost of enterprises is reduced.
Description
Technical Field
The utility model relates to a small skid-mounted saturated brine refining device, and belongs to the field of brine refining.
Background
The use of saturated brine purification processes based on ceramic membrane separation has grown in the chlor-alkali industry. Compared with the traditional sedimentation and organic tubular membranes, the impurity removal process has the advantages of high efficiency, good reliability, stable brine quality, easy cleaning and regeneration and the like.
In China, the chlor-alkali process is used as the national basic industry, the scale is large, the alkali yield is generally more than 10 ten thousand tons per year, and the brine amount treated every year is naturally high, so that a brine refining device is huge and complicated, and has the problems of scattered equipment, large occupied area, inconvenience in transportation and installation and the like.
Moreover, the two years of the world limit the travel and the flow of people due to the pandemic of the new coronavirus, and many businesses, installation and debugging activities are forced to stop, so that the limitation is more even at home.
SUMMERY OF THE UTILITY MODEL
The utility model provides a small skid-mounted saturated brine refining device, which firstly solves the problems of scattered brine refining equipment, large occupied area, inconvenience in transportation and installation and the like in the prior art, and the device is modularized and skid-mounted, so that the transportation and the installation are convenient, the land is saved, and meanwhile, a backflushing cleaning device is integrated, the stable operation of the device is ensured, and the refining effect is ensured; secondly, as the further improvement of this application, during this application imbeds touch-sensitive screen PLC with internet of things, realized long-range man-machine and exchanged and control, greatly made things convenient for the remote debugging and the control of device, solved the restricted problem of the personnel flow at the epidemic situation now, also practiced thrift the cost of labor simultaneously.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:
a small skid-mounted saturated brine refining device comprises a first skid-mounted integrated block and a second skid-mounted integrated block;
the first skid-mounted integrated block is provided with a ceramic membrane front impurity removal device and a ceramic membrane concentrated solution pollution discharge device;
the device for removing impurities in front of the ceramic membrane comprises a reaction tank for removing cationic impurities, a reaction tank for removing organic impurities, a ceramic membrane feeding pump and a ceramic membrane coarse filter, wherein the inlet of the reaction tank for removing cationic impurities is connected with the outlet of a salt melting tank, the outlet of the reaction tank for removing cationic impurities is connected with the inlet of the reaction tank for removing organic impurities, and the outlet of the reaction tank for removing organic impurities, the ceramic membrane feeding pump and the ceramic membrane coarse filter are sequentially connected;
the ceramic membrane concentrated solution pollution discharge device comprises a salt mud tank, a mud pump, a plate-frame filter press, a plate-frame filtrate tank and a plate-frame filtrate pump which are sequentially communicated, wherein a slag discharge port of the ceramic membrane coarse filter is communicated with an inlet of the salt mud tank;
the second skid-mounted integrated block is provided with a ceramic membrane filtering device, a back flushing device, a ceramic membrane cleaning device and a ceramic membrane clear liquid post-treatment device;
the ceramic membrane filtering device comprises a ceramic membrane circulating pump, a ceramic membrane high-pressure side assembly and a ceramic membrane low-pressure side assembly, an inlet of the ceramic membrane circulating pump is communicated with a filtrate outlet of the ceramic membrane coarse filter, and an outlet of the ceramic membrane circulating pump, the ceramic membrane high-pressure side assembly, the ceramic membrane low-pressure side assembly and the ceramic membrane circulating pump are sequentially communicated to form a ceramic membrane internal circulating filtering loop;
the backflushing device comprises a backflushing tank, a liquid outlet of the backflushing tank is communicated with a lower outlet of the permeation side of the ceramic membrane high-pressure side assembly, a liquid inlet of the backflushing tank is communicated with an upper outlet of the permeation side of the ceramic membrane high-pressure side assembly, and a concentrated liquid outlet of the ceramic membrane low-pressure side assembly and a lower outlet of the permeation side of the ceramic membrane high-pressure side assembly are both communicated with an inlet of the salt mud tank;
the ceramic membrane cleaning device comprises a cleaning tank and a cleaning pump, wherein the outlet of the cleaning pump is connected with the concentrated liquid outlet of the ceramic membrane low-pressure side assembly, the inlet of the cleaning pump is connected with the outlet of the cleaning tank, and the inlet of the cleaning tank is connected with the inlet of the ceramic membrane high-pressure side assembly and the outlet 37 on the permeation side;
ceramic membrane clear solution aftertreatment device includes sodium sulfite solution dosing tank, sodium sulfite solution dosing pump, pipeline mixer and primary brine groove, and the import and the sodium sulfite solution dosing tank bottom intercommunication of sodium sulfite solution dosing pump, export and the export of dosing pump all communicate on the import of mixer and the infiltration side of ceramic membrane high pressure side subassembly, and the mixer exit linkage is to primary brine groove.
Saturated brine is subjected to cation impurity removal reaction to remove cation impurities such as calcium and magnesium, then is subjected to organic impurity removal reaction to remove organic impurities, then is sequentially subjected to filtration by a ceramic membrane coarse filter, a ceramic membrane high-pressure side assembly and a ceramic membrane low-pressure side assembly, and then is subjected to reduction treatment by sodium sulfite solution in a pipeline mixer, and then enters a primary brine tank to finish refining.
In order to maintain a stable high flux during the filtration of the ceramic membrane, it is necessary to perform a timed back-flushing of the ceramic membrane. And (3) deslagging by a ceramic membrane coarse filter, cleaning and discharging the ceramic membrane concentrated solution and the ceramic membrane, feeding the ceramic membrane concentrated solution and the ceramic membrane into a salt mud tank, and performing subsequent plate-frame filter pressing to obtain a filtrate which can be used as salt dissolving water.
In order to ensure that the clear liquid filtered by the ceramic membrane has no oxidability, a sodium sulfite post-treatment device is arranged on the clear liquid pipeline on the permeation side of the ceramic membrane.
The device integrates the ceramic membrane front impurity removal device and the ceramic membrane concentrated solution pollution discharge device on the first skid-mounted integrated block, and integrates the ceramic membrane filtering device, the backflushing device, the ceramic membrane cleaning device and the ceramic membrane clear solution post-treatment device on the second skid-mounted integrated block, so that the device can be miniaturized and tightly integrated, and the devices are orderly, reasonably and tightly arranged, thereby not only ensuring the refining effect, simplifying the process and ensuring the continuous and stable operation of equipment, but also being convenient for transportation and installation and saving the land.
The communication means connection and communication, and communication of each inlet and outlet can be realized through a connecting pipeline.
In order to realize automation and remote control, a PLC control cabinet is further integrated on the second skid-mounted integrated block, the PLC control cabinet comprises an internet of things gateway (IOT) and a field electrical control system, the IOT gateway (IOT) is integrated in a touch screen PLC of the field electrical control system, and the field electrical control system controls the starting and stopping of the ceramic membrane front impurity removal device, the ceramic membrane concentrated solution pollution discharge device, the ceramic membrane filtering device, the backflushing device, the ceramic membrane cleaning device and the ceramic membrane clear solution post-treatment device.
The field electric control system consists of a data acquisition component of a field control object, an electric control cabinet, a touch screen PLC and corresponding program software; the field control component and the electrical control cabinet are connected through data lines, air pipes, interfaces and the like, and the field control component and the electrical control cabinet can be realized by referring to the prior art.
More specifically, in the field electrical control system, after the data acquisition components of the field control objects acquire field data and information, the field data and the information are fed back to the interfaces of the control cabinet through the data lines and are collected to the PLC, the PLC sends instructions to the interfaces of the control cabinet according to program software, and finally the instructions are returned to the control objects through the data lines to be executed.
The remote debugging and control of the device are connected with the PLC through the gateway of the Internet of things, and debugging personnel can access the field PLC control system by inputting the field IP address on the remote office equipment, so that the remote debugging and control of the field device are realized.
The application of the internet of things technology helps people to meet the requirements of people on mobility and travel to a great extent. More and more advertising marketing and business meetings are carried out on a network line, and even remote monitoring is applied in a certain range. Under this background, in order to deal with the epidemic situation under, reduce commodity circulation and commercial activity cost simultaneously, this application is integrated in on-the-spot electrical control system's touch-sensitive screen PLC with thing networking gateway (IOT), has realized equipment remote debugging and control, and the practicality is very strong.
In order to remove the cationic impurities such as calcium, magnesium and the like in the saturated brine, a sodium carbonate solution dosing tank, a sodium carbonate solution dosing pump, a sodium hydroxide solution dosing tank and a sodium hydroxide solution dosing pump are arranged above the cationic impurity reaction tank; the inlet of the sodium carbonate solution dosing pump is communicated with the bottom of the sodium carbonate solution dosing tank, and the outlet of the sodium carbonate solution dosing pump is communicated with the reaction tank for removing cationic impurities; the inlet of the sodium hydroxide solution dosing pump is communicated with the bottom of the sodium hydroxide solution dosing tank, and the outlet of the sodium hydroxide solution dosing pump is communicated with the reaction tank for removing cationic impurities.
In order to achieve the purpose and the requirement of remotely debugging and controlling the saturated brine impurity removal process, a carbonate on-line detector and a pH on-line detector are arranged in the reaction tank for removing the cationic impurities, the carbonate on-line detector is interlocked with a sodium carbonate solution dosing pump, and the pH on-line detector is interlocked with a sodium hydroxide solution dosing pump.
In order to further remove organic impurities, a sodium hypochlorite solution dosing tank and a sodium chlorate solution dosing pump are arranged above the organic impurity removing reaction tank, the inlet of the sodium chlorate solution dosing pump is communicated with the bottom of the sodium hypochlorite solution dosing tank, and the outlet of the sodium chlorate solution dosing pump is communicated with the organic impurity removing reaction tank.
In order to facilitate control, a residual chlorine on-line detector is arranged in the reaction tank for removing organic impurities and is linked with a sodium chlorate solution dosing pump.
In order to realize the debugging and control of the remote timing backflushing process of the ceramic membrane, a pneumatic air inlet valve and a pneumatic air outlet valve are arranged at the top of the backflushing tank, the pneumatic air inlet valve is connected with an oil-free compressed air (P is greater than 0.5MPa) air source, the permeation side of the ceramic membrane high-pressure side assembly is connected with a pneumatic switch valve, and the pneumatic air inlet valve, the pneumatic air outlet valve and the pneumatic switch valve form a backflushing control mechanism and are controlled by a PLC program.
In order to realize the purpose of remotely debugging and controlling the post-treatment process of the ceramic membrane clear liquid, an oxidation-reduction potential tester (ORP) is arranged in the primary brine tank and is linked with a sodium sulfite solution dosing pump.
In order to realize more accurate control, the field control object also comprises the liquid level and temperature of each tank and tank, the pressure before and after the coarse filter is filtered and the position of a drain valve, the frequency of a feeding pump and a circulating pump, the pressure before the membrane, the flow rate of concentrated solution, the position of a control valve, the flow rate of a permeation side, the position of a control valve of a cleaning and drain system and the like besides the information provided by the four dosing control systems and the back flushing control system. These can be implemented in conjunction with existing sensing devices and control techniques.
In order to save floor area and space, the second skid-mounted integrated block and the first skid-mounted integrated block are arranged in an upper layer and a lower layer, and the second skid-mounted integrated block is arranged on the upper portion and the first skid-mounted integrated block is arranged on the lower portion. Set up transition step, support column etc. between upper and lower layer for prior knowledge, this application is no longer repeated.
The above apparatus is suitable for a throughput of 10m3Saturated crude brine below/h.
The prior art is referred to in the art for techniques not mentioned in the present invention.
According to the utility model, the small saturated brine refining device is modularized, skid-mounted and automated according to the process sequence and characteristics of each component, so that the device is greatly convenient to transport and mount, and land is saved; furthermore, the remote control system is established by utilizing the technology of the Internet of things, so that the installation and debugging of the device are greatly facilitated, the device is particularly suitable for small-scale brine refining treatment and is more suitable for the debugging and control of the remote device, and the remote control technology of the Internet of things is indispensable at present in epidemic situations. The method has obvious advancement:
1. the effect of small and fine device is ensured: on the basis of a mature process for refining saturated brine by a ceramic membrane, a plurality of parts of the device are innovatively treated in a modularized manner and are integrated into two skid-mounted integrated blocks together, so that the device is miniaturized and tightly integrated; meanwhile, in order to ensure the treatment effect, an on-line detection automatic dosing control system and an automatic back flushing system are further set, so that the quality effect of the treated brine is ensured, and the continuous and stable operation of the equipment is ensured.
2. The ceramic membrane cleaning device has the advantages that the cleaning pump is connected with the concentrated solution outlet of the ceramic membrane low-pressure side assembly, the ceramic membrane high-pressure side assembly is connected with the cleaning tank, the direction of flushing the membrane surface pollution layer is opposite to the direction of forming the membrane surface pollution layer during cleaning, the membrane surface pollution layer is easier to flush, and the cleaning efficiency is high.
3. Convenient transportation, installation: the highly integrated skid-mounted device concentrates scattered components into two skid-mounted integrated blocks, greatly reduces the floor area and space of the device, reduces the disorder of the components, and facilitates packaging and transportation; the components are directly fixed in the two skid-mounted integrated blocks, so that the installation workload is reduced, great convenience is brought to the installation and use of customers, and the installation and use costs of the customers are reduced.
4. Further, degree of automation is high, has made things convenient for remote debugging and control: in order to facilitate remote debugging and control, the utility model further adopts an automatic control system of full online detection for the whole device, not only automatically controls the operation and control of the conventional system, but also accurately detects and controls key process points (such as four dosing points), and ensures the full-automatic operation on site. On the basis, the Internet of things technology is utilized, remote control is embedded into a center PLC of field control, remote debugging and control personnel can carry out remote regulation and control through the Internet of things, remote man-machine communication and control are achieved, debugging cost is greatly reduced, and the frequency of the movement of the personnel is reduced.
Drawings
FIG. 1 is a schematic view of a small skid-mounted saturated brine refining plant according to the present invention;
FIG. 2 is a schematic diagram of a remote control system according to the present invention;
in fig. 1, 1 is a reaction tank 1, 2 is a reaction tank 2, 3 is a salt mud tank, 4 is a plate-frame filtrate tank, 5 is a cleaning tank, 6 is a ceramic membrane low-pressure side assembly, 7 is a ceramic membrane high-pressure side assembly, 8 is a backflushing tank, 9 is a sodium sulfate dosing tank, 10 is a primary salt water tank, and 11 is a power control cabinet with a PLC; 12 is a sodium carbonate dosing tank, 13 is a sodium hydroxide dosing tank, 14 is a sodium hypochlorite dosing tank, 15 is used for dissolving brine, 16 is a sodium carbonate dosing pump, 17 is a sodium hydroxide dosing pump, 18 is a sodium hypochlorite dosing pump, 19 is a ceramic membrane feeding pump, 20 is a coarse filter, 21 is a slurry pump, 22 is a plate-and-frame filter press, 23 is a plate-and-frame filter press filtrate pump, 24 is a cleaning pump, 25 is a ceramic membrane circulating pump, 26 is a sodium sulfite dosing pump, 27 is a pipeline mixer, 28 is an IOT gateway, 29 is a touch screen PLC, 30 is a pneumatic clear liquid valve, 31 is a pneumatic air inlet valve, 32 is a pneumatic exhaust valve, 33 is an oxidation reduction potential determinator ORP, 34 is a carbonate on-line determinator, 35 is a pH on-line determinator, 36 is a residual chlorine on-line determinator, 37 is a permeate-side upper outlet, and 37 is a permeate-side lower outlet.
In fig. 1, a is saturated brine from a salt dissolving tank, b is a sodium carbonate solution, c is a sodium hydroxide solution, d is a sodium hypochlorite solution, e is a crude filter filtrate, f is a ceramic membrane concentrate, g is ceramic membrane cleaning blowdown, h is filter residue of a plate-and-frame filter press, i is a filter filtrate of the plate-and-frame filter press, j is a hydrochloric acid pickling solution, k is a coarse filter blowdown, l is a back flush gas, m is a sodium sulfite solution, n is a ceramic membrane clear solution, and o is primary refined brine.
Detailed Description
In order to better understand the present invention, the following examples are further provided to illustrate the present invention, but the present invention is not limited to the following examples.
The references to "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. in this application are to be construed as being based on the orientation or positional relationship shown in the drawings and are for convenience only and to simplify the description, but are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation and is not to be construed as limiting the utility model.
Example 1
As shown in fig. 1, a small skid-mounted saturated brine refining device comprises a first skid-mounted integrated block and a second skid-mounted integrated block;
the first skid-mounted integrated block is provided with a ceramic membrane front impurity removal device and a ceramic membrane concentrated solution pollution discharge device;
the pre-ceramic membrane impurity removal device comprises a cationic impurity removal reaction tank 1, an organic impurity removal reaction tank 2, a ceramic membrane feed pump 19 and a ceramic membrane coarse filter 20, wherein the inlet of the cationic impurity removal reaction tank 1 is connected with the outlet of the salt dissolving tank, the outlet of the cationic impurity removal reaction tank 1 is connected with the inlet of the organic impurity removal reaction tank 2, and the outlet of the organic impurity removal reaction tank 2, the ceramic membrane feed pump 19 and the ceramic membrane coarse filter 20 are sequentially connected;
the ceramic membrane concentrated solution pollution discharge device comprises a salt mud tank 3, a mud pump 21, a plate-and-frame filter press 22, a plate-and-frame filtrate tank 4 and a plate-and-frame filtrate pump 23 which are sequentially communicated, and a slag discharge port of a ceramic membrane coarse filter 20 is communicated with an inlet of the salt mud tank 3;
the second skid-mounted integrated block is provided with a ceramic membrane filtering device, a back flushing device, a ceramic membrane cleaning device and a ceramic membrane clear liquid post-treatment device;
the ceramic membrane filtering device comprises a ceramic membrane circulating pump 25, a ceramic membrane high-pressure side assembly 7 and a ceramic membrane low-pressure side assembly 6, an inlet of the ceramic membrane circulating pump 25 is communicated with a filtrate outlet of the ceramic membrane coarse filter 20, and an outlet of the ceramic membrane circulating pump 25, the ceramic membrane high-pressure side assembly 7, the ceramic membrane low-pressure side assembly 6 and the ceramic membrane circulating pump 25 are sequentially communicated to form a ceramic membrane internal circulating filtering loop;
the backflushing device comprises a backflushing tank 8, a liquid outlet of the backflushing tank 8 is communicated with a lower outlet 38 on the permeation side of the ceramic membrane high-pressure side assembly 7, a liquid inlet of the backflushing tank 8 is communicated with an upper outlet 37 on the permeation side of the ceramic membrane high-pressure side assembly 7, and a concentrated liquid outlet of the ceramic membrane low-pressure side assembly 6 and the lower outlet 38 on the permeation side of the ceramic membrane high-pressure side assembly 7 are both communicated with an inlet of the salt mud tank 3;
the ceramic membrane cleaning device comprises a cleaning tank 5 and a cleaning pump 24, in order to effectively clean the ceramic membrane equipment, the flow direction of a ceramic membrane cleaning solution is just opposite to the flow direction of a ceramic membrane filtering solution, the outlet of the cleaning pump 24 is connected with the concentrated solution outlet of the ceramic membrane low-pressure side assembly 6, the inlet of the cleaning pump 24 is connected with the outlet of the cleaning tank 5, and the inlet of the cleaning tank 5 is connected with the inlet of the ceramic membrane high-pressure side assembly 7 and the outlet 37 on the permeation side;
in order to ensure that the clear liquid after the ceramic membrane filtration has no oxidability, a sodium sulfite m post-treatment device is arranged on a clear liquid pipeline on the permeation side of the ceramic membrane, the ceramic membrane clear liquid post-treatment device comprises a sodium sulfite solution feeding box 9, a sodium sulfite solution feeding pump 26, a pipeline mixer 27 and a primary brine tank 10, an inlet of the sodium sulfite solution feeding pump 26 is communicated with the bottom of the sodium sulfite solution feeding box 9, an inlet of the mixer 27 is communicated with an outlet 37 on the permeation side of the ceramic membrane high-pressure side assembly 7 and an outlet of the feeding pump 26, an outlet of the mixer 27 is connected to the primary brine tank 10, and refining is completed.
Saturated brine a from a salt dissolving tank is subjected to cation impurity removal reaction tank 1 to remove cation impurities such as calcium and magnesium, then is subjected to organic impurity removal reaction tank 2 to remove organic impurities, and is filtered by a ceramic membrane coarse filter 20 to obtain coarse filter filtrate e, the coarse filter filtrate e is sequentially filtered by a ceramic membrane high-pressure side assembly 7 and a ceramic membrane low-pressure side assembly 6 to obtain ceramic membrane clear liquid n, and the ceramic membrane clear liquid n is subjected to reduction treatment by a sodium sulfite solution in a pipeline mixer 27 to obtain primary refined brine o, and then enters a primary brine tank 10.
In order to maintain a stable high flux during the filtration of the ceramic membrane, it is necessary to perform a timed back-flushing of the ceramic membrane. The ceramic membrane coarse filter 20 discharges slag k, the ceramic membrane concentrated solution f and the ceramic membrane cleaning and sewage g, the ceramic membrane coarse filter enters the salt mud tank 3, and after subsequent plate-frame filter pressing, the effluent of the plate-frame filter solution pump 23 can be used as salt dissolving water.
In order to ensure that the clear liquid filtered by the ceramic membrane has no oxidability, a sodium sulfite post-treatment device is arranged on the clear liquid pipeline on the permeation side of the ceramic membrane.
The device integrates the ceramic membrane front impurity removal device and the ceramic membrane concentrated solution pollution discharge device on the first skid-mounted integrated block, and integrates the ceramic membrane filtering device, the backflushing device, the ceramic membrane cleaning device and the ceramic membrane clear solution post-treatment device on the second skid-mounted integrated block, so that the device can be miniaturized and tightly integrated, and the devices are orderly, reasonably and tightly arranged, thereby not only ensuring the refining effect, simplifying the process and ensuring the continuous and stable operation of equipment, but also being convenient for transportation and installation and saving the land.
Example 2
On the basis of the embodiment 1, the following improvements are further made: in order to realize automation and remote control, a PLC control cabinet 11 is further integrated on the second skid-mounted integrated block, the PLC control cabinet 11 comprises an internet of things gateway (IOT)28 and a field electrical control system, the internet of things gateway (IOT)28 is integrated in a touch screen PLC29 of the field electrical control system, and the field electrical control system controls the starting and stopping of the ceramic membrane front impurity removing device, the ceramic membrane concentrated solution pollution discharge device, the ceramic membrane filtering device, the backflushing device, the ceramic membrane cleaning device and the ceramic membrane clear solution post-treatment device.
The field electric control system consists of a data acquisition component of a field control object, an electric control cabinet, a touch screen PLC and corresponding program software; the field control component and the electrical control cabinet are connected through data lines, air pipes, interfaces and the like, and the field control component and the electrical control cabinet can be realized by referring to the prior art. As shown in fig. 2, in the field electrical control system, after the field control object components collect the field data and information, the field data and information are fed back to the control cabinet interface through the data line, and are collected to the PLC, the PLC sends instructions to each interface of the control cabinet according to the program software, and finally the instructions are returned to each control object through the data line for execution. The remote debugging and control of the device are connected with the PLC through the gateway of the Internet of things, and debugging personnel can access the field PLC control system by inputting the field IP address on the remote office equipment, so that the remote debugging and control of the field device are realized.
Example 3
On the basis of the embodiment 1 or 2, the following improvements are further made: in order to remove the cationic impurities such as calcium, magnesium and the like in the saturated brine, a sodium carbonate solution dosing tank 12, a sodium carbonate solution dosing pump 16, a sodium hydroxide solution dosing tank 13 and a sodium hydroxide solution dosing pump 17 are arranged above the cationic impurity reaction tank 1; an inlet of a sodium carbonate solution dosing pump 16 is communicated with the bottom of the sodium carbonate solution dosing tank 12, and an outlet of the sodium carbonate solution dosing pump 16 is communicated with the reaction tank 1 for removing cationic impurities; the inlet of the sodium hydroxide solution dosing pump 17 is communicated with the bottom of the sodium hydroxide solution dosing tank 13, and the outlet of the sodium hydroxide solution dosing pump 17 is communicated with the reaction tank 1 for removing cationic impurities. In order to achieve the purpose and the requirement of remote debugging and controlling the saturated brine impurity removal process, a carbonate on-line detector 34 and a pH on-line detector 35 are arranged in the reaction tank 1 for removing the cationic impurities, the carbonate on-line detector 34 is interlocked with a sodium carbonate solution dosing pump 16, and the pH on-line detector 35 is interlocked with a sodium hydroxide solution dosing pump 17.
Example 4
On the basis of the embodiment 3, the following improvements are further made: in order to further remove organic impurities, a sodium hypochlorite solution dosing tank 14 and a sodium chlorate solution dosing pump 18 are arranged above the organic impurity removing reaction tank 2, an inlet of the sodium chlorate solution dosing pump 18 is communicated with the bottom of the sodium hypochlorite solution dosing tank 14, and an outlet of the sodium chlorate solution dosing pump 18 is communicated with the organic impurity removing reaction tank 2. For the convenience of control, a residual chlorine on-line detector 36 is arranged in the reaction tank 2 for removing organic impurities, and the residual chlorine on-line detector 36 is linked with the sodium chlorate solution dosing pump 18.
Example 5
On the basis of the embodiment 4, the following improvements are further made: in order to realize the debugging and control of the remote timing backflushing process of the ceramic membrane, the top of the backflushing tank 8 is provided with a pneumatic air inlet valve 31 and a pneumatic air outlet valve 32, the pneumatic air inlet valve 31 is connected with an oil-free compressed air (P is more than 0.5MPa) air source, the permeation side of the ceramic membrane high-pressure side assembly 7 is connected with a pneumatic switch valve 30, and the pneumatic air inlet valve 31, the pneumatic air outlet valve 32 and the pneumatic switch valve 30 form a backflushing control mechanism and execute instructions sent by a PLC29 and are controlled by a PLC29 program.
Example 6
On the basis of the embodiment 5, the following improvements are further made: in order to realize the purpose of remotely debugging and controlling the post-treatment process of the ceramic membrane clear liquid, an oxidation-reduction potential tester (ORP)33 is arranged in the primary brine tank 10, and the oxidation-reduction potential tester (ORP)33 is linked with the sodium sulfite solution dosing pump 26.
The site control object comprises the liquid level and temperature of each tank and tank, the pressure before and after filtration of the ceramic membrane coarse filter 20 and the position of the blowdown valve, the frequency of the feeding pump and the circulating pump, the pressure before the membrane, the flow of the concentrated solution, the position of the control valve, the flow of the permeation side, the position of the control valve of the cleaning and blowdown system and the like, besides the information provided by the four dosing control systems and the back flush control system, the site control object also comprises the liquid level and temperature of each tank and tank, the pressure before the filtration of the ceramic membrane coarse filter 20 and the position of the blowdown valve, the site electrical control system collects various site data and information through components of the site control object, feeds the site data and information back to interfaces of the control cabinet through data lines, collects the site data and information to the PLC, sends instructions to various interfaces of the control cabinet according to program software, and finally returns to various control objects through the data lines to execute the control objects.
Example 7
On the basis of the embodiment 6, the following improvements are further made: in order to save floor area and space, the second skid-mounted integrated block and the first skid-mounted integrated block are arranged in an upper layer and a lower layer, and the second skid-mounted integrated block is arranged on the upper portion and the first skid-mounted integrated block is arranged on the lower portion. Suitably at a throughput of 10m3Saturated crude brine below/h.
Claims (9)
1. The utility model provides a small-size sled dress formula saturated salt water refining plant which characterized in that: the device comprises a first skid-mounted integrated block and a second skid-mounted integrated block;
the first skid-mounted integrated block is provided with a ceramic membrane front impurity removal device and a ceramic membrane concentrated solution pollution discharge device;
the device for removing the impurities in the front of the ceramic membrane comprises a reaction tank (1) for removing the cationic impurities, a reaction tank (2) for removing the organic impurities, a ceramic membrane feeding pump (19) and a ceramic membrane coarse filter (20), wherein the inlet of the reaction tank (1) for removing the cationic impurities is connected with the outlet of a salt melting tank, the outlet of the reaction tank (1) for removing the cationic impurities is connected with the inlet of the reaction tank (2) for removing the organic impurities, and the outlet of the reaction tank (2) for removing the organic impurities, the ceramic membrane feeding pump (19) and the ceramic membrane coarse filter (20) are sequentially connected;
the ceramic membrane concentrated solution pollution discharge device comprises a salt mud tank (3), a mud pump (21), a plate-and-frame filter press (22), a plate-and-frame filtrate tank (4) and a plate-and-frame filtrate pump (23) which are sequentially communicated, wherein a slag discharge port of a ceramic membrane coarse filter (20) is communicated with an inlet of the salt mud tank (3);
the second skid-mounted integrated block is provided with a ceramic membrane filtering device, a back flushing device, a ceramic membrane cleaning device and a ceramic membrane clear liquid post-treatment device;
the ceramic membrane filtering device comprises a ceramic membrane circulating pump (25), a ceramic membrane high-pressure side assembly (7) and a ceramic membrane low-pressure side assembly (6), an inlet of the ceramic membrane circulating pump (25) is communicated with a filtrate outlet of the ceramic membrane coarse filter (20), an outlet of the ceramic membrane circulating pump (25), the ceramic membrane high-pressure side assembly (7), the ceramic membrane low-pressure side assembly (6) and the ceramic membrane circulating pump (25) are sequentially communicated to form a ceramic membrane internal circulating filtering loop;
the backflushing device comprises a backflushing tank (8), a liquid outlet of the backflushing tank (8) is communicated with a lower outlet (38) at the permeation side of the ceramic membrane high-pressure side assembly (7), a liquid inlet of the backflushing tank (8) is communicated with an upper outlet (37) at the permeation side of the ceramic membrane high-pressure side assembly (7), and a concentrated solution outlet of the ceramic membrane low-pressure side assembly (6) and a lower outlet (38) at the permeation side of the ceramic membrane high-pressure side assembly (7) are both communicated with an inlet of the salt mud tank (3);
the ceramic membrane cleaning device comprises a cleaning tank (5) and a cleaning pump (24), wherein the outlet of the cleaning pump (24) is connected with the concentrated solution outlet of the ceramic membrane low-pressure side assembly (6), the inlet of the cleaning pump (24) is connected with the outlet of the cleaning tank (5), and the inlet of the cleaning tank (5) is connected with the inlet of the ceramic membrane high-pressure side assembly (7) and the outlet (37) on the permeation side;
ceramic membrane clear solution aftertreatment device includes sodium sulfite solution dosing tank (9), sodium sulfite solution dosing pump (26), pipeline mixer (27) and primary brine tank (10), the import and sodium sulfite solution dosing tank (9) bottom intercommunication of sodium sulfite solution dosing pump (26), export (37) and the export of dosing pump (26) all communicate on the import of mixer (27) and the infiltration side of ceramic membrane high pressure side subassembly (7), mixer (27) exit linkage to primary brine tank (10).
2. A compact skid-mounted saturated brine refining plant as defined in claim 1, wherein: the second skid-mounted integrated block is further integrated with a PLC control cabinet (11), the PLC control cabinet (11) comprises an IOT gateway IOT (28) and a field electrical control system, the IOT gateway IOT (28) is integrated in a touch screen PLC (29) of the field electrical control system, and the field electrical control system controls starting and stopping of the ceramic membrane front impurity removal device, the ceramic membrane concentrated solution pollution discharge device, the ceramic membrane filtering device, the backflushing device, the ceramic membrane cleaning device and the ceramic membrane clear solution post-treatment device.
3. A compact skid-mounted saturated brine refining plant as defined in claim 1 or 2, wherein: a sodium carbonate solution dosing tank (12), a sodium carbonate solution dosing pump (16), a sodium hydroxide solution dosing tank (13) and a sodium hydroxide solution dosing pump (17) are arranged above the cationic impurity reaction tank (1); an inlet of a sodium carbonate solution dosing pump (16) is communicated with the bottom of the sodium carbonate solution dosing tank (12), and an outlet of the sodium carbonate solution dosing pump (16) is communicated with the reaction tank (1) for removing cationic impurities; the inlet of a sodium hydroxide solution dosing pump (17) is communicated with the bottom of a sodium hydroxide solution dosing tank (13), and the outlet of the sodium hydroxide solution dosing pump (17) is communicated with the reaction tank (1) for removing cationic impurities.
4. A compact skid-mounted saturated brine refining plant as defined in claim 3, wherein: a carbonate on-line detector (34) and a pH on-line detector (35) are arranged in the reaction tank (1) for removing the cationic impurities, the carbonate on-line detector (34) is linked with a sodium carbonate solution dosing pump (16), and the pH on-line detector (35) is linked with a sodium hydroxide solution dosing pump (17).
5. A compact skid-mounted saturated brine refining plant as defined in claim 1 or 2, wherein: a sodium hypochlorite solution dosing tank (14) and a sodium chlorate solution dosing pump (18) are arranged above the organic matter impurity removing reaction tank (2), the inlet of the sodium chlorate solution dosing pump (18) is communicated with the bottom of the sodium hypochlorite solution dosing tank (14), and the outlet of the sodium chlorate solution dosing pump (18) is communicated with the organic matter impurity removing reaction tank (2).
6. A compact skid-mounted saturated brine refining plant as defined in claim 5, wherein: an on-line residual chlorine detector (36) is arranged in the reaction tank (2) for removing organic impurities, and the on-line residual chlorine detector (36) is linked with a sodium chlorate solution dosing pump (18).
7. A compact skid-mounted saturated brine refining plant as defined in claim 1 or 2, wherein: the top of the recoil tank (8) is provided with a pneumatic air inlet valve (31) and a pneumatic air outlet valve (32), the pneumatic air inlet valve (31) is connected with an oil-free compressed air source, the permeation side of the ceramic membrane high-pressure side assembly (7) is connected with a pneumatic switch valve (30), and the pneumatic air inlet valve (31), the pneumatic air outlet valve (32) and the pneumatic switch valve (30) form a recoil control mechanism and are controlled by a PLC program.
8. A compact skid-mounted saturated brine refining plant as defined in claim 1 or 2, wherein: an oxidation-reduction potential measuring instrument ORP (33) is arranged in the primary brine tank (10), and the oxidation-reduction potential measuring instrument ORP (33) is linked with a sodium sulfite solution dosing pump (26).
9. A compact skid-mounted saturated brine refining plant as defined in claim 1 or 2, wherein: the second skid-mounted integrated block and the first skid-mounted integrated block are arranged in an upper layer and a lower layer, and the second skid-mounted integrated block is arranged on the upper portion and the first skid-mounted integrated block is arranged on the lower portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122098498.8U CN215693889U (en) | 2021-09-01 | 2021-09-01 | Small skid-mounted saturated brine refining device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122098498.8U CN215693889U (en) | 2021-09-01 | 2021-09-01 | Small skid-mounted saturated brine refining device |
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| Publication Number | Publication Date |
|---|---|
| CN215693889U true CN215693889U (en) | 2022-02-01 |
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|---|---|---|---|
| CN202122098498.8U Active CN215693889U (en) | 2021-09-01 | 2021-09-01 | Small skid-mounted saturated brine refining device |
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| Country | Link |
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| CN (1) | CN215693889U (en) |
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2021
- 2021-09-01 CN CN202122098498.8U patent/CN215693889U/en active Active
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