CN215626940U - Agent unloading system of ion exchanger in process water treatment process - Google Patents

Agent unloading system of ion exchanger in process water treatment process Download PDF

Info

Publication number
CN215626940U
CN215626940U CN202121517753.1U CN202121517753U CN215626940U CN 215626940 U CN215626940 U CN 215626940U CN 202121517753 U CN202121517753 U CN 202121517753U CN 215626940 U CN215626940 U CN 215626940U
Authority
CN
China
Prior art keywords
ion exchanger
valve
resin
water treatment
unloading
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN202121517753.1U
Other languages
Chinese (zh)
Inventor
冯殿伟
马明珠
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Feng Dianwei
Original Assignee
Feng Dianwei
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Feng Dianwei filed Critical Feng Dianwei
Priority to CN202121517753.1U priority Critical patent/CN215626940U/en
Application granted granted Critical
Publication of CN215626940U publication Critical patent/CN215626940U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Treatment Of Water By Ion Exchange (AREA)

Abstract

The utility model provides an ion exchanger agent discharging system in a process water treatment process and a using method thereof, relating to the field of water treatment processes. The embodiment of the application provides an ion exchanger unloads agent system in technology water treatment process, from uninstallation mechanism including first body, ion exchanger and the resin that connects gradually, first body be used for to the ion exchanger intussuseption supercharged water body. The system is convenient to use, and the water body can be discharged along the resin self-unloading mechanism and collected in a centralized manner by introducing the water body into the ion exchanger and pressurizing the water body, so that the system improves the resin unloading efficiency, reduces a large amount of labor cost caused by resin unloading, avoids the safety risk of personnel operating in a narrow limited space, and is convenient to popularize and use in a large range.

Description

Agent unloading system of ion exchanger in process water treatment process
Technical Field
The utility model relates to the field of water treatment processes, in particular to an agent unloading system of an ion exchanger in a process water treatment process.
Background
The water treatment mode comprises physical treatment and chemical treatment. The mode of human being's water treatment has been quite a lot of years history, and the physical method includes utilizing the different filter media of various aperture sizes, utilizes absorption or separation mode, gets rid of the impurity in aquatic outside, and the more important person in the absorption mode is for adsorbing with active carbon, and separation method is to pass through the filter media with water, lets the impurity of bigger volume can't pass through, and then obtains comparatively clean water. In addition, the physical methods also include precipitation methods, which are obtained by floating impurities with a smaller specific gravity on the water surface or precipitating impurities with a larger specific gravity below the water surface. The chemical method is to convert the impurities in water into substances which are less harmful to human bodies by various chemicals or concentrate the impurities, and the longest historical chemical treatment method can be that alum is added into water, and after the impurities in the water are collected, the volume is increased, and then the impurities can be removed by a filtration method.
The process water anion-cation exchanger is a ring in water treatment; when the service life of the resin is due to replacement, the anion-cation exchanger resin needs to be transferred into a resin cleaning tank through a resin transfer pipeline between the anion-cation exchanger and the resin cleaning tank, then a manhole at the bottom of the resin cleaning tank is opened for manual agent unloading, a large amount of resin is scattered during agent unloading, a resin packaging bag is filled into the cleaning tank along with the resin during agent filling, accessories such as gaskets need to be replaced during recovery of the resin cleaning tank, the filled resin is used once every half year to one year, a large amount of manpower and material resources need to be consumed during replacement of the resin, and the risks of resource waste, process pipeline blockage, personnel sliding to fall, environmental pollution and the like exist.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an agent unloading system of an ion exchanger in a process water treatment process, which can improve the agent unloading speed of resin and improve the safety.
The embodiment of the utility model is realized by the following steps:
the embodiment of the application provides an ion exchanger unloads agent system in technology water treatment process, from uninstallation mechanism including first body, ion exchanger and the resin that connects gradually, first body be used for to the ion exchanger intussuseption supercharged water body.
In some embodiments of the present invention, the resin self-unloading mechanism includes a second pipe, a first valve, a third pipe, and a slag car, which are connected in sequence, and the second pipe is connected to the ion exchanger.
In some embodiments of the present invention, a gate valve is further disposed between the first valve and the third pipe, and the gate valve is configured to open and close the third pipe.
In some embodiments of the present invention, a second valve is further disposed between the ion exchanger and the second pipe, and the second valve is used for opening and closing a discharge port of the ion exchanger.
In some embodiments of the present invention, the second valve and the second pipe, the second pipe and the first valve, the first valve and the gate valve, and the gate valve and the third pipe are all connected by flanges.
In some embodiments of the present invention, the third tube comprises a transparent metal hose.
In some embodiments of the present invention, the second pipe and the third pipe are treated to resist corrosion.
In some embodiments of the utility model, the first valve is a three-way valve.
In some embodiments of the present invention, the first pipe is provided with a third valve.
In some embodiments of the utility model, the second valve can be normally open.
Compared with the prior art, the embodiment of the utility model has at least the following advantages or beneficial effects:
the embodiment of the application provides an ion exchanger unloads agent system in technology water treatment process, including first body, ion exchanger and the resin that connects gradually from uninstallation mechanism, first body is used for filling the pressure boost water to ion exchanger. The ion exchanger process requires the exchange to be performed in an ion exchanger (otherwise known as a bed) and the ion exchanger to be deactivated and regenerated to restore ion exchange capacity. In order to improve the economics and technical applicability of the ion exchange process, combinations of different resins, different bed types and various ion exchange systems have been created; compared with the prior art that a resin cleaning tank needs to be connected and the resin is manually drawn out, the utility model has the following advantages that: (1) according to the utility model, manual drawing and unloading of resin are not required, self-unloading agent treatment of the resin can be rapidly carried out only by simply and conveniently connecting post operators, the agent unloading time is only half an hour, and seventy-two hours is required for manual drawing and unloading, so that the time of the agent unloading process can be greatly shortened, the water treatment efficiency is improved, and a large amount of labor cost caused by manual drawing and unloading can be effectively avoided; (2) according to the utility model, the resin self-unloading mechanism is used for unloading the agent, a scaffold does not need to be built, the consumption of consumables is reduced, and further the cost consumption is effectively reduced; (3) because the ion exchanger is arranged indoors, the pipelines of sec-butyl alcohol, nitrogen and process water materials are arranged indoors, personnel enter limited spaces such as rooms and containers to operate, and the risks of poisoning, suffocation and the like exist; (4) the utility model can utilize the resin self-unloading mechanism to carry out centralized collection and treatment on the resin, so that the resin cannot be scattered on the ground, and the risk of slipping and falling injury of workers is reduced; the system is convenient to use, and the water body can be discharged along the resin self-unloading mechanism and collected in a centralized manner by introducing the water body into the ion exchanger and pressurizing the water body, so that the system improves the resin unloading efficiency, reduces a large amount of labor cost caused by resin unloading, avoids the safety risk of personnel operating in a narrow limited space, and is convenient to popularize and use in a large range.
When in actual use, a worker firstly leads the water body into the ion exchanger along the first pipeline, the pressure in the ion exchanger is improved, and the resin self-unloading mechanism is started, so that the water body can be intensively and quickly discharged in cooperation with the resin.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a flow chart of an agent unloading system according to an embodiment of the present invention.
Icon: 1-a first tube; 101-a third valve; 2-an ion exchanger; 201-a second valve; 3-a second tube; 4-a first valve; 5-a third tube; 6-slag pulling vehicle; 7-gate valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an orientation or a positional relationship based on the orientation or the positional relationship shown in the drawings, or an orientation or a positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience and simplicity, and the indication or the suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, the present invention should not be construed as being limited. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Examples
Referring to fig. 1, fig. 1 is a flow chart of an agent unloading system according to an embodiment of the present invention.
The embodiment of the application provides an ion exchanger unloads agent system in technology water treatment process, including first body 1, ion exchanger 2 and the resin that connects gradually from uninstallation mechanism, first body 1 is used for filling the pressure boost water to ion exchanger 2. The ion exchanger 2 process requires the exchange to be carried out in an ion exchanger 2 (otherwise known as a bed) and the ion exchanger to be deactivated and regenerated to restore the ion exchange capacity. In order to improve the economics and technical applicability of the ion exchange process, combinations of different resins, different bed types and various ion exchange systems have been created; the first pipe body 1 is connected with the ion exchanger 2, water can be filled into the ion exchanger 2, the pressure in the ion exchanger 2 is increased, the water is mixed with resin, and after a resin self-unloading mechanism is started, the water is discharged together with the resin, compared with the state that a resin cleaning tank needs to be connected and the resin is manually taken out and unloaded in the prior art, the utility model has the following advantages that: (1) according to the utility model, manual drawing and unloading of resin are not required, self-unloading agent treatment of the resin can be rapidly carried out only by simply and conveniently connecting post operators, the agent unloading time is only half an hour, and seventy-two hours is required for manual drawing and unloading, so that the time of the agent unloading process can be greatly shortened, the water treatment efficiency is improved, and a large amount of labor cost caused by manual drawing and unloading can be effectively avoided; (2) according to the utility model, the resin self-unloading mechanism is used for unloading the agent, a scaffold does not need to be built, the consumption of consumables is reduced, and further the cost consumption is effectively reduced; (3) because the ion exchanger 2 is arranged indoors, pipelines of sec-butyl alcohol, nitrogen and process water materials are arranged indoors, personnel enter limited spaces such as rooms and containers to operate, and risks such as poisoning and asphyxiation exist; (4) the utility model can utilize the resin self-unloading mechanism to carry out centralized collection and treatment on the resin, so that the resin cannot be scattered on the ground, and the risk of slipping and falling injury of workers is reduced; the system is convenient to use, and the water body can be discharged along the resin self-unloading mechanism and collected in a centralized manner by introducing the water body into the ion exchanger 2 and pressurizing the water body, so that the system improves the resin unloading efficiency, reduces a large amount of labor cost caused by resin unloading, avoids the safety risk of personnel operating in a narrow limited space, and is convenient to popularize and use in a large range.
During the in-service use, the staff at first lets in ion exchanger 2 along first pipeline with the water in, improves the pressure in ion exchanger 2 to open resin from the uninstallation mechanism, make the water can concentrate in coordination with resin and discharge fast.
In some embodiments of the present invention, as shown in fig. X, the resin self-unloading mechanism comprises a second pipe 3, a first valve 4, a third pipe 5 and a slag car 6 which are connected in sequence, wherein the second pipe 3 is connected with the ion exchanger 2. The water body in the ion exchanger 2 cooperates with the water body to flow out of the second pipe body 3, flow through the first valve 4 and then flow into the slag car 6 through the third pipe body 5 to be collected and transported in a centralized manner.
The first valve 4 in this embodiment is also interfaced with the next process in the water treatment process.
In some embodiments of the present invention, as shown in fig. 1, a gate valve 7 is further disposed between the first valve 4 and the third pipe 5, and the gate valve 7 is used for opening and closing the third pipe 5.
The gate valve 7 in this embodiment is one of the most commonly used shut-off valves, and is mainly used for connecting or shutting off the medium in the pipeline, and is not used for regulating the medium flow. The applied pressure, temperature and diameter range is very large, especially applied to the pipelines with medium and large diameters, and the advantages are that the fluid resistance is small, the opening and closing are labor-saving, and the medium flowing direction is not limited generally; the gate valve 7 can control the opening and closing of the third pipe body 5, the pressure in the ion exchanger 2 is guaranteed to be opened when reaching the unloading standard, and the situation that the water body inclines out when the third pipe body 5 and the slag car 6 are not fixed by a worker is avoided.
In some embodiments of the present invention, as shown in fig. 1, a second valve 201 is further disposed between the ion exchanger 2 and the second pipe 3, and the second valve 201 is used for opening and closing a discharge port of the ion exchanger 2. The second valve 201 can ensure that the ion exchanger 2 does not have pressure relief.
In some embodiments of the present invention, as shown in fig. 1, the second valve 201 and the second pipe 3, the second pipe 3 and the first valve 4, the first valve 4 and the gate valve 7, and the gate valve 7 and the third pipe 5 are all flanged. Above-mentioned a plurality of parts loop through flange joint's convenience can ensure that it bears the pressure that ion exchanger 2 excretes and bring, improve the assembly stability of this system, improve the security.
In some embodiments of the utility model, as shown in fig. 1, the third tube 5 comprises a transparent metal hose.
The transparent metal hose in this embodiment is a polyester polyurethane (ESTER PU) hose, and is reinforced with a spiral copper-plated steel wire. The inner wall is smooth, so that the material flows more smoothly. The wall thickness is from 0.35 to 0.50 mm. Compressible (stretch ratio 1: 4), light and flexible. Wear resistance, mineral oil resistance, and good weather resistance, ozone resistance and aging resistance. Is particularly suitable for dynamic working environments.
In some embodiments of the utility model, as shown in fig. 1, the second tubular body 3 and the third tubular body 5 are treated to resist corrosion. By adopting the corrosion-resistant treatment on the second pipeline and the third pipe body 5, the service life of the pipe can be prolonged, and the structural strength and the pressure resistance are improved.
In some embodiments of the utility model, as shown in fig. 1, the first valve 4 is a three-way valve. The first valve 4 is a three-way valve enabling it to connect the system in the rest of the water treatment process.
In some embodiments of the utility model, as shown in fig. 1, the first tubular body 1 is provided with a third valve 101. Through setting up third valve 101 makes the staff can adjust the water volume that gets into in ion exchanger 2, and then control the pressure in ion exchanger 2.
Referring to fig. 1, fig. 1 is a flow chart of an agent unloading system according to an embodiment of the present invention.
The embodiment of the application provides a using method of an ion exchanger 2 agent unloading system in a process water treatment process, which comprises the following steps:
the second valve 201 is first closed;
communicating the third pipe body 5 with a slag pulling vehicle 6;
opening a third valve 101, and introducing the water body into the ion exchanger 2 for pressurization;
when the pressure reaches a standard value, opening the second valve 201 and the gate valve 7 to enable the resin in the ion exchanger 2 to be taken out by the water body and discharged into the slag-pulling car 6 for collection;
after the resin is collected, closing the third valve 101, the second valve 201 and the gate valve 7, and releasing the third pipe body 5 fixed in the carriage of the slag car 6;
finally, the slag car 6 transports the resin inside. The resin is unloaded by the method, excessive manual intervention or operation is not needed, the third pipeline is fixedly butted with the carriage of the slag car 6 by a worker, and the rapid unloading of the resin can be realized by controlling the opening and closing of the valve, so that the unloading efficiency is greatly improved.
In summary, the embodiment of the present invention provides an agent unloading system for an ion exchanger in a process of treating process water; the embodiment of the application provides an agent system is unloaded to ion exchanger 2 among technology water treatment process, from uninstalling the mechanism including first body 1, ion exchanger 2 and the resin that connect gradually, first body 1 be used for to pack the pressure boost water in ion exchanger 2. The ion exchanger 2 process requires the exchange to be carried out in an ion exchanger 2 (otherwise known as a bed) and the ion exchanger to be deactivated and regenerated to restore the ion exchange capacity. In order to improve the economics and technical applicability of the ion exchange process, combinations of different resins, different bed types and various ion exchange systems have been created; the first pipe body 1 is connected with the ion exchanger 2, water can be filled into the ion exchanger 2, the pressure in the ion exchanger 2 is increased, the water is mixed with resin, and after a resin self-unloading mechanism is started, the water is discharged together with the resin, compared with the state that a resin cleaning tank needs to be connected and the resin is manually taken out and unloaded in the prior art, the utility model has the following advantages that: (1) according to the utility model, manual drawing and unloading of resin are not required, self-unloading agent treatment of the resin can be rapidly carried out only by simply and conveniently connecting post operators, the agent unloading time is only half an hour, and seventy-two hours is required for manual drawing and unloading, so that the time of the agent unloading process can be greatly shortened, the water treatment efficiency is improved, and a large amount of labor cost caused by manual drawing and unloading can be effectively avoided; (2) according to the utility model, the resin self-unloading mechanism is used for unloading the agent, a scaffold does not need to be built, the consumption of consumables is reduced, and further the cost consumption is effectively reduced; (3) because the ion exchanger 2 is arranged indoors, pipelines of sec-butyl alcohol, nitrogen and process water materials are arranged indoors, personnel enter limited spaces such as rooms and containers to operate, and risks such as poisoning and asphyxiation exist; (4) the utility model can utilize the resin self-unloading mechanism to carry out centralized collection and treatment on the resin, so that the resin cannot be scattered on the ground, and the risk of slipping and falling injury of workers is reduced; the system is convenient to use, and the water body can be discharged along the resin self-unloading mechanism and collected in a centralized manner by introducing the water body into the ion exchanger 2 and pressurizing the water body, so that the system improves the resin unloading efficiency, reduces a large amount of labor cost caused by resin unloading, avoids the safety risk of personnel operating in a narrow limited space, and is convenient to popularize and use in a large range.
During the in-service use, the staff at first lets in ion exchanger 2 along first pipeline with the water in, improves the pressure in ion exchanger 2 to open resin from the uninstallation mechanism, make the water can concentrate in coordination with resin and discharge fast.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. The utility model provides an ion exchanger unloads agent system in technology water treatment process which characterized in that, is including the first body, ion exchanger and the resin that connect gradually from uninstallation mechanism, first body be used for to the ion exchanger intussuseption supercharging water.
2. An ion exchanger discharge system in a process water treatment process as claimed in claim 1, wherein the resin self-discharge mechanism comprises a second pipe, a first valve, a third pipe and a slag car connected in sequence, the second pipe is connected with the ion exchanger.
3. The system of claim 2, wherein a gate valve is further disposed between the first valve and the third tube, and the gate valve is configured to open and close the third tube.
4. A system as claimed in claim 3, wherein a second valve is provided between the ion exchanger and the second tube, the second valve being adapted to open and close a discharge outlet of the ion exchanger.
5. A system as claimed in claim 4, wherein the second valve and the second tube, the second tube and the first valve, the first valve and the gate valve, and the gate valve and the third tube are all flanged.
6. A process water treatment in-process ion exchanger agent discharge system according to claim 2, wherein said third tube comprises a transparent metal hose.
7. A process water treatment process ion exchanger discharge system according to claim 2, wherein the second tube and the third tube are treated to resist corrosion.
8. A process water treatment process ion exchanger discharge system according to claim 2, wherein said first valve is a three-way valve.
9. A process water treatment in-process ion exchanger discharge system according to claim 1, wherein the first tube is provided with a third valve.
10. An ion exchanger discharge system in a process water treatment process according to claim 4, wherein said second valve is capable of being normally open.
CN202121517753.1U 2021-07-01 2021-07-01 Agent unloading system of ion exchanger in process water treatment process Active CN215626940U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121517753.1U CN215626940U (en) 2021-07-01 2021-07-01 Agent unloading system of ion exchanger in process water treatment process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121517753.1U CN215626940U (en) 2021-07-01 2021-07-01 Agent unloading system of ion exchanger in process water treatment process

Publications (1)

Publication Number Publication Date
CN215626940U true CN215626940U (en) 2022-01-25

Family

ID=79948026

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202121517753.1U Active CN215626940U (en) 2021-07-01 2021-07-01 Agent unloading system of ion exchanger in process water treatment process

Country Status (1)

Country Link
CN (1) CN215626940U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113277599A (en) * 2021-07-01 2021-08-20 冯殿伟 Agent unloading system of ion exchanger in process water treatment process and use method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113277599A (en) * 2021-07-01 2021-08-20 冯殿伟 Agent unloading system of ion exchanger in process water treatment process and use method

Similar Documents

Publication Publication Date Title
CN215626940U (en) Agent unloading system of ion exchanger in process water treatment process
US20120152816A1 (en) Mobile water treatment
WO2012071232A2 (en) Flow back recovery system
CN104528912B (en) A kind of photocatalysis apparatus based on nano-magnetic titanium deoxide catalyst
US7544303B2 (en) Method and apparatus for removing debris from septic waste
CN113277599A (en) Agent unloading system of ion exchanger in process water treatment process and use method
CN103115799A (en) Powerless sampling device capable of automatically and rapidly sucking solution
US8888896B1 (en) Contaminant removal from gas streams
CN209816051U (en) Natural gas desulfurization device
CN207755841U (en) A kind of quick back-washing dirt separator of angle general formula
CN205815248U (en) A kind of coal-burning power plant SCR denitration system movable type liquefied ammonia oil removing defecator
CN207276325U (en) A kind of micro-pore aeration equipment
CN111569559A (en) Waste gas purification dust-free environment-friendly gas leakage monitoring system of dihydrate gypsum production line
CN220609982U (en) Medicament mixing arrangement for sewage treatment
CN210885282U (en) Oiling device of hydraulic machine
CN215137413U (en) Dirt removing filter
CN215680135U (en) Radioactive waste resin transfer device
CN219200972U (en) Down sampler of waste liquid recovery tank
CN209292065U (en) A kind of second level aeration biological filter device
CN211051261U (en) MBR membrane cleaning system
CN215627320U (en) Radioactive decontamination waste liquid recycling and disposing vehicle
CN220414465U (en) Initial rainwater collecting and processing system with linkage control of electric valve
CN218669699U (en) Water diversion device for automatic water feeding of circulating water pump
CN215667428U (en) Water purifying device
CN221132166U (en) Poisonous/easily-oxidized solid material sealing and feeding system

Legal Events

Date Code Title Description
GR01 Patent grant
GR01 Patent grant